Robot Lawnmowers Essay Example | Topics and Well Written Essays - 1000 words

Robot Lawnmowers - Essay Example The sellers make their customers buy them and thus ample time is saved for attracting new clientele and persuading them to buy robot lawnmowers. This not only saves time but also offers huge profit. 2.1.3. The best robot lawnmowers that are being sold in the market holding positive feedback from the elderly and the disabled consumers include Robomower, Lawnbott, and Husqvarna Automower (Squidoo LLC, 2011). Robomower is being made by a company in Israel named Friendly Robotics, and is being traded into the US by Systems Trading Corporation (STC). Lawnbott is being made by an Italian company named Zucchetti Centro Sistemi and is being imported by Kyodo America (KA). It is marketed by the name of Ambrogio in Europe. Automower is made by a Swedish company and is imported and marketed by official Husqvarna dealers. 2.2.1.1. Robot market is developing at a fast pace since robots are making lives easier by automating the systems and leaving enough time for leisure along with saving money (Fuller, 1991). Since new technology is continuously replacing the old one, the price of robot lawnmowers is dropping and is expected to further drop in the coming years with a simultaneous increase in their usage especially by consumers who are elderly or are disabled. 2.2.1.2. The technology regarding the hardware, software and design is being improved but the component prices are dropping since the demand is increasing. The robot market is seriously considering the needs of the elderly and the disabled persons and the robot lawnmower market also consider them their biggest consumers. 2.2.3.1. The robotic mower market is expected to quadruple in the coming few years. However, at least a decade is needed for these lawnmowers to replace the contractors’ business so in the meanwhile the contractors can make use of these intelligent devices to make money in their businesses. 2.6.2. In

Role of ATP in Supporting Energy to the Body Essay Example for Free

Role of ATP in Supporting Energy to the Body Essay When food is ingested, it is broken down into components and utilized in a specific manner in three major cellular pathways to provide energy for the cells and the body.   Ultimately, these pathways involve the breakdown and utilization of food, the utilization of O2 and the production of CO2, the generation and regeneration of ATP and the production of water.   Therefore, these processes involve respiration as well as the breakdown and utilization of food and oxygen. Three major pathways are involved:   glycolysis which takes place in the cellular cytoplasm and breaks down glycogen and glucose from food, the Krebs Cycle which occurs in the mitochondrion and oxidative phosphorylation which occurs in the mitochondrion.   Ã‚  Ã‚   These three pathways occur in two cellular locations.   Glycolysis takes place in the cytoplasm and The Krebs Cycle and oxidative phosphorylation take place in the mitochondria.   During these three pathways, there is a utilization and production of ATP that biochemists follow closely.   It results in the net production of 36 molecules of ATP.   Ã‚  Ã‚  Ã‚   To understand the entire process that illustrates how food is broken down and utilized in the body, it is instructive to follow a bolus, that is, food consumed, chewed and swallowed.   Each step involves some aspect of digestion that breaks down complex sugar and protein molecules into smaller units.   Proteins are broken down into peptides and amino acids while starches and other complex sugars are broken down into glucose. The glucose undergoes glycolysis in the cellular cytoplasm beginning with the enzyme hexokinase, and the entire process of glycolysis is controlled by the rate limiting enzyme phosphofructokinase (PFK).   Kinase enzymes (enzymes that break down ATP) are common all along the three pathways involved, glycolysis, the Krebs Cycle (also called the Citric Acid Cycle and the Tricaroxylic Acid Cycle) and phosphorylative oxidation.   Kinases are enzymes that break down or utilized ATP, ADP and AMP as their substrate or one of their substrates.   Ã‚  Ã‚  Ã‚   Fiske and Subbarow discovered and characterized ATP in 1929.   At that time, the work of some demonstrated that the breakdown of ATP provided energy for muscle contraction, but other studies demonstrated that there was ATP synthesis during glycolysis and during electron transport.   Although ATP is made throughout the cell, the cellular location of ATP synthesis varies with the biochemical pathways associated with ATP synthesis.    Although one common pathway of ATP synthesis and breakdown is associated with the adenylate kinase reaction that forms two ADP molecules from ATP and AMP, studies in the late 1920s and beyond demonstrated that ATP synthesis was also associated with glycolysis and during electron transport.   In 1949, Kennedy and Lehninger demonstrated that ATP synthesis and the citric acid cycle occur in the mitochondria.   We now recognize that ATP synthesis and breakdown can be associated with specific biochemical pathways in the cell cytoplasm and in the mitochondria.    Some enzymes are sensitive to the ratio of ATP to AMP and to the presence of ADP.   This realization led to the concept of the energy charge, the relative concentration of ATP to ADP to AMP in the cell.   An energy charge of 1.0 represents all ATP, and energy charge of 0 represents all AMP and an energy charge of 0.5 represents all ADP or equal amounts of ATP and AMP or some combination of the two.   These ratios, and thus the energy charge are important to the cell because many cellular enzymes such as PFK are sensitive to and regulated by the relative amounts of the adenine nucleotides, ATP, ADP and AMP. Glycolysis   Ã‚  Ã‚  Ã‚   Glycolysis, also referred to as the Embden-Meryhof-Parnas pathway (figure 1), is essentially the breakdown of glucose in the cytoplasm of the cell.   The glycolytic process can begin with glucose or glycogen.   During the process, glycolysis generates the high energy compounds ATP and NADH that serve as the energy sources in the cell.   Among the many cellular roles for glycolysis, it serves three central cellular functions.   First, it generates high energy molecules such as ATP and NADH. It also produces pyruvate for the Krebs cycle and a variety of three and six carbon compounds involved in the intermediary metabolism of the cell.   The rate limiting enzyme for glycolysis, that is, the key enzyme that controls the glycolytic pathway, is phosphofructokinase (PFK).   PFK is feedback inhibited by high levels of ATP which acts by lowering the affinity of the substrate F6P for PFK.   AMP can reverse the inhibitory effect of ATP rendering PFK, and thus the control of glycolysis very sensitive to the ratio of ATP/AMP in the cytoplasm.   Ã‚  Ã‚  Ã‚   The final product arising from glycolysis depends on the cellular conditions.   Whereas glycolysis begins with glucose or glycogen, it ends with the production two molecules of the three carbon compound pyruvate.   Under anaerobic conditions, pyruvate is reduced to form lactic acid or ethanol and under aerobic conditions pyruvate loses CO2 and forms the product acetyl-coenzyme A as a result of oxidation of pyruvate to carbon dioxide and water in the citric acid cycle within the mitochrondia.   Glycolysis occurs in the cellular cytoplasm and the Krebs Cycle and oxidative phosphorylation occur in the mitochondria.   Ã‚  Ã‚  Ã‚   Glycolysis results in the formation of fructose from glucose and the formation of glyceraldehyde 3-phosphate, 3-phosphoglycerate and compounds along the pathway on the way to splitting the resulting 6-carbon compound into two three carbon units of pyruvate.   In the process, NAD+ serves as a hydrogen carrier and is reduced to NADH, the oxidized form of NAD+. In the cell, the oxidation of aldehyde to carboxylic acid is very complex and strongly exergonic and is generally coupled to ATP synthesis.   Glucose goes to Glu-6-P to Fructose with the breakdown of two ATP molecules.   Fructose gives rise to glyceraldehyde-3-phosphate which is ultimately splite in a complex reaction chain to phosphoglycerate, phosphoenolpyruvate which is finally split into two molecules of pyruvate by pyruvate and the regeneration of the two ATP molecules previously utilized. Glycolysis Figure 1. Embden-Meryhof-Parnas pathway, also known as glycolysis.   Reproduced from Michael W. King, Wednesday, 22-Mar-2006. The Citric Acid Cycle   Ã‚  Ã‚  Ã‚   The Citric Acid Cycle (Figure 2) is the most complex of the three components associated with carbohydrate metabolism and the consumption of food.   It involves the following eight enzymes and the components they use as substrate:   Citrate Synthase, Aconitase, Isocitrate Dehydrogense, alpha-ketoglutarate Dehydrogenase, Succinyl-CoA Synthetase, Succinate Dehydrogenase, Fumarase, Malate Dehydrogenase.   The generation of acetyl-CoA from carbohydrates is a major control point of the Krebs cycle.   Therefore, glycolysis and the rate limiting enzyme of glycolysis, PFK, play a role in the control of the Krebs cycle.   The oxidation of an acetyl group is a difficult chemical process and may be the reason that nature developed the Tricarboxylic Acid Cycle (TCAC), also known as the Citric Acid Cycle and the Krebs Cycle. The Krebs cycle begins when the products of glycolysis leave the cytoplasm (cytosol) and enter the mitochondria.   Once glycogen or glucose have been broken down into two three carbon units of pyruvate, the pyruvate can be further broken down into a high energy compound called acetyl-CoA resulting in the production of CO2 and water.   Acetyl-CoA combines with oxaloacetate (also spelled oxalacetate) to form the 6 carbon compound citrate.   From this condensation reaction, a complex array of biochemical reactions take place that involve various molecular transformations such as isomerizations and molecular rearrangements. These various steps result in transformations from the 6-carbon condensation that gave rise to citrate and subsequent 6-carbon units of cis-aconitate, isocitrate to a five carbon unit of alpha-ketoglutarate to the four carbon units of succinate, fumarate, malate and oxaloacetate which, once regenerated is available to combine with another high energy acetyl-CoA and form another unit of citrate under the influence of the enzyme citrate synthetase.   After citrate is formed, two carbon atoms are removed as CO2 as the various TCAC intermediates are formed leading to the regeneration of the 4-carbon oxaloacetate. There are several oxidation steps on the way to the reformation of oxaloacetate.   Each step feeds reducing agents, either NADH or FADH, into the cycle on the way to regenerating oxaloacetate from citrate.   The reducing agents (or reducing equivalents) remove hydrogen from the enzyme substrates.   So, the reducing agents serve as a pool of hydrogen carriers and allow for the further synthesis of ATP during electron transport.   The TCAC results in the production of 2 ATP molecules, 10 carrier molecules and CO2 from each molecule of glucose. Glycolysis and the Krebs Cycle Figure 2. Glycolysis and the Krebs Tricarboxylic Acid Cycle (TCAC).   Reproduced  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   from David R. Caprette, 2005. Electron Transport   Ã‚  Ã‚  Ã‚   The complex molecules that were reduced during the Krebs Cycle are re-oxidized by means of the electron transport system. (Figure 3)   Although TCAC results in the production of 2 ATP molecules from each molecule of glucose, electron transport gives rise to 34 ATP molecules and water from the carrier molecules.   Therefore, the majority of the ATP in the cell must be produced in the mitochondria.   The re-oxidation of reduced NADH and FADH2 by O2 involves a sequence of electron carriers in what has become known as the electron transport chain.   It ultimately results in the generation of three molecules of ATP from ADP and inorganic phosphate for every oxygen molecule involved. This process is called oxidative phosphorylation and is the principal source of usable energy (in the form of ATP) in the cell.   It is provided by the breakdown of both carbohydrates and fats.   In the process, reduced NADH transfers a hydrogen atom plus two electrons (a hydride ion and H-).   Two complex molecules, NAD+ and FAD+, serve as the pool of hydrogen carriers and thus act reducing agents in the mitochondria; NAD+ is reduced to NADH and FAD is reduced to FADH2.   These compounds serve as electron carriers because their oxidation or reduction, the transfer of H+ (a proton), is accompanied by one or two of the electrons. The electrons donated from NADH or FADH2, upon entering this complex, travel from one carrier to the next, with each carrier being a somewhat more powerful oxidant than the previous one.   The hydrogen donated by the reducing agents combines with O2 such that with each molecule of O2 combines with 4 H+ to form water.   Therefore, two molecules of NADH must pass four electrons down the electron transport chain for each reduced oxygen molecule (O2). The chemical structures of the components of the electron transport chain fall into several distinct classes.   Most are proteins that contain special coenzymes called prosthetic groups.   Although they differ in chemical structure, a major difference between NADH and FADH2 is that NADH difuses freely between the dehydrogenases transfer hydrogen to it whereas FAD+ and FADH2 do not.   Another class of electron carriers in the mitochondrial membranes is iron-sulfur [Fe-S] clusters that are bound to proteins and release Fe3+ or Fe2+ plus H2S when acidified.   All of the carriers only appear to carry one electron at a time.   Ã‚  Ã‚  Ã‚   Ubiquinone or Coenzyme Q is a third hydrogen carrier localized in the mitochondrial membranes.   It is a common electron carrier that collects electrons from three or more points of input along the electron transport chain and passes them to molecular oxygen.   Unlike the other mitochondrial electron carriers, ubiquinone is not uniquely associated with proteins.   The cytochromes are a final class of electron carrier localized in the mitochondrial membrane.   Cytochromes are small, chemically distinct proteins that contain heme.   Like the other electron transport agents, the cytochromes only carry a single electron.   Cytochromes pass electrons from cyt bcyt ccyt acyt a3O2 Electron Transport/Oxidative Phosphorylation Figure 3.   Electron Transport during Oxidative Phosphorylation.   Reproduced from M. W. King, 2001. Summary   Ã‚  Ã‚  Ã‚   The pathways discussed here involve food consumption and energy utilization arising from food consumption.   Once food is taken in and reaches the stomach, it enters the body and the cells of the body.   Before digestion, food consists of complex, long chain molecules that must be broken during digestion beginning in the mouth and continuing in the stomach.   Once digested food reaches the cells, long chain molecules such as starch and other complex carbohydrates are further broken down into glucose.   Glucose, a six carbon compound, undergoes the process of glycolysis in the cellular cytoplasm to become two three carbon units of pyruvate. Under anaerobic conditions, pyruvate goes to lactic acid or ethanol, but in the presence of oxygen, pyruvate breaks down into a two-carbon compound, Acetyl-CoA and enters the Krebs Cycle.   There, food can be used to form energy for the cell in the form of ATP.   In the mitochondria, 36 molecules of ATP are formed for each molecule of O2.   Two ATP molecules arise from the Krebs cycle and 34 molecules arise from electron transport for each molecule of oxygen.   Thus, food consumed and oxygen taken in combine to replenish the energy supplies in the body in the form of ATP. References Caprette, David R.   Substrate Oxidation:   Krebs Reactions.   Experimental Biosciences 31 May, 2005.   The Krebs Cycle:   http://www.ruf.rice.edu/~bioslabs/studies/mitochondria/mitokrebs.html, Thursday, 7 June 2007. King, Michael W. Digestion of Dietary Carbohydrates.   Wednesday, 22-Mar-2006 Glycolysis: http://web.indstate.edu/thcme/mwking/glycolysis.html, Thursday, 7 June 2007 King, Michael W. Principals of Reduction/Oxidation (Redox) Reactions. Friday, 30 Mar-2007.   Oxidative Phosphorylation:   http://web.indstate.edu/thcme/mwking/oxidative-phosphorylation.html, Thursday, 7 June 2007.

The Grande Odalisqe :: Art Analysis

The Grande Odalisqe The Grande Odalisque painted in 1884, drew many criticisms. There were complaints about the lifelessness of the subject, the fact that she has three vertebrae too many. It illustrates the rather strange mixture of Ingres’s artistic allegiances. His subject, the reclining nude figure, is traditional, going back to Giorgione and Titian; but by converting her into an odalisque, an inhabitant of a Turkish harem, he makes a strong concession to the contemporary Romantic taste for the exotic. Ingres treats the figure in his own â€Å"sculpturesque† style: polished surfaces and simple rounded volumes controlled by rhythmically flowing contours. The smoothness of the planes of the body is complemented by the broken, busy shapes of the drapery. His admiration for Raphael is shown in the borrowing of that master’s type of female head and headdress, and an inclination of the head, as it can bee seen in Raphael’s Madonna of the Chair. But Ingres is drawing not only from the High Renaissance, for his figures languid pose and her proportions (small head, elongated limbs) betray his debt to such Mannerists as Parmigianino, as does the generally cool colour scheme. Often Criticized for not being a colourist, Ingres in fact, had a superb colour sense. It is true that he did not seem to think of his paintings primarily in terms of colour, as did Delacroix, but he did far more than simply tint his drawings for emphasis. In this painting Ingres creates colour and tonal relationships so tasteful and subtle as to render them unforgettable. Never insisting on likeness for its own sake, Ingres rarly fails to produce a striking characterization and, analogously to the smooth, formal treatment he gives his nudes, never fails to impart to both characterization and setting an air of suave elegance.

The Life Of Mahatma Ghandi Essay -- essays research papers

Mahatma Gandhi Introduction Mohandas Karamchand Gandhi, the preeminent leader of Indian nationalism and the prophet of nonviolence in the 20th century, was born, the youngest child of his father's fourth wife, on Oct. 2, 1869, at Porbandar, the capital of a small principality in Gujarat in western India under British suzerainty. His father, Karamchand Gandhi, who was the dewan (chief minister) of Porbandar, did not have much in the way of a formal education but was an able administrator who knew how to steer his way between the capricious princes, their long-suffering subjects, and the headstrong British political officers in power. Gandhi's mother, Putlibai, was completely absorbed in religion, did not care much for finery and jewelry, divided her time between her home and the temple, fasted frequently, and wore herself out in days and nights of nursing whenever there was sickness in the family. Mohandas grew up in a home steeped in Vaishnavism (Vaisnavism)--worship of the Hindu god Vishnu (Visnu)--with a strong tinge of Jainism, a morally rigorous Indian religion, whose chief tenets are nonviolence and the belief that everything in the universe is eternal. Thus he took for granted ahimsa (noninjury to all living beings), vegetarianism, fasting for self-purification, and mutual tolerance between adherents of various creeds and sects. (see also Index: ahimsa, or ahimsa) Youth. The educational facilities at Porbandar were rudimentary; in the primary school that Mohandas attended, the children wrote the alphabet in the dust with their fingers. Luckily for him, his father became dewan of Rajkot, another princely state. Though he occasionally won prizes and scholarships at the local schools, his record was on the whole mediocre. One of the terminal reports rated him as "good at English, fair in Arithmetic and weak in Geography; conduct very good, bad handwriting." A diffident child, he was married at the age of 13 and thus lost a year at school. He shone neither in the classroom nor on the playing field. He loved to go out on long solitary walks when he was not nursing his by now ailing father or helping his mother with her household chores. He had learned, in his words, "to carry out the orders of the elders, not to scan them." With such extreme passivity, it is not surprising that he should have gone through a phase of adolescent rebel... ...reading John Ruskin's Unto This Last, a critique of capitalism, he set up a farm at Phoenix near Durban where he and his friends could literally live by the sweat of their brow. Six years later another colony grew up under Gandhi's fostering care near Johannesburg; it was named Tolstoy Farm after the Russian writer and moralist, whom Gandhi admired and corresponded with. Those two settlements were the precursors of the more famous ashrams (ashramas) in India, at Sabarmati near Ahmedabad (Ahmadabad) and at Sevagram near Wardha. South Africa had not only prompted Gandhi to evolve a novel technique for political action but also transformed him into a leader of men by freeing him from bonds that make cowards of most men. "Persons in power," Gilbert Murray prophetically wrote about Gandhi in the Hibbert Journal in 1918, "should be very careful how they deal with a man who cares nothing for sensual pleasure, nothing for riches, nothing for comfort or praise, or promotion, but is simply determined to do what he believes to be right. He is a dangerous and uncomfortable enemy, because his body which you can always conquer gives you so little purchase upon his soul."

Airline Industry: Pricing Structure and Strategies Essay

ABSTRACT The profitability of an airline industry depends on filling seats, and on the company’s ability successfully to anticipate the cost and price structures of their competitors. However, many airline carriers have a hard time accomplishing this because the average airline passenger just needs to travel from one destination to another in the most convenient and shortest amount of time at a reasonable price. Therefore, customers in this market are not as loyal to one specific airline (brand) in the industries. The reason for this is that airline carriers provide the same services at similar prices. In addition, the passenger will only incur high switching costs if they choose to take another mode of less desirable transportation. Airline carriers have overcome these problems by using the strategy of â€Å"Price discrimination.† That is a strategy that allows them adequately to segment their potential passengers, and to offer different pricing structures that match passengers’ sensitivity to price and value differences in cost to serve, and their different competitive positions (Stern, 1989). While it also allows passengers to maximize their â€Å"expected utility† when flying with the airline carrier that meets their needs. The 1978 deregulation of the airline industry has resulted in airline carriers being unable to make a profit by filling seats, and successfully to anticipate the cost and price structures of their competitors (Bailey, David, Graham, Kaplan 1985). According to statistic, the airline industries’ profits declined in 2001 through 2003 by $23.2 billion (Smith Jr. & Cox). During this time the average airline passenger just needed to travel from one destination to another in the most convenient and shortest amount of time at a reasonable price. However, because all airline carriers provide the same services at similar prices, the passengers in this market are not as loyal to one specific airline (brand). For, example, any passengers not able to purchase a flight plan that they value, will not necessary buy the next best plan offered. Instead, these price-sensitive passengers will gravitate toward a lower-cost competitor  airline (Smith Jr. & Cox). This is especially true in this particular industry because a passenger will only incur high switching costs if they chose to take another mode of less desirable transportation. Therefore, many airline carriers had a hard time making a profit or breaking even (Brady, & Cunningham, 2001). In addition, this same deregulation of the industry provided new companies the opportunity to enter an already competitive market (Bailey, David, Graham, Kaplan. 1985). This stressed the market because pricing strategies that airlines used in the past did not adequately different between price sensitive passengers and price insensitive in this market (Sterns, 1989). Therefore, many airline carriers could not â€Å"capitalize on opportunities that [would] influence customer and [their] competitor responses (Stern, 1989). Because of this lost of profit, many airline carriers were force to file bankruptcy (Brady, & Cunningham, 2001). Therefore, as a reaction to these, external pressures many of the remaining companies (American, United, Continental, Northwest, US Air, and Delta) developed complex pricing strategies that would help them to outmaneuver their rivals (Smith Jr. & Cox). Different pricing structures were developed that allow them to match passengers’ sensitivity to pr ice and value differences in cost to serve, and their different competitive positions (Stern, 1989). In addition, sense airline carriers offer a product that is homogenous; to be successful they had to offer a product that potential passengers would view as different from their competitors’ product (Westermann, 2005). One strategy that airline carriers’ use is â€Å"differentiated pricing, which is a form of â€Å"price discrimination.† That is a strategy, which many companies’ uses because it allows them to charge different prices to different customer. However, airline carriers use this strategy by offering fare discounts.[1] This strategy allows the airline carriers to get as much consumer surplus as possible from each group of passengers, given his or her utility functions and income. Once they have determine their potential passengers expected utility from flying and income â€Å"Pricing ladders† are then used to charged for seats on a flight by segmenting travelers by their identity, destination, number of days between the day of reservation, the day of travel, the day, and time of departure, the day and time of return (Currie,  & Simpson, 2009). Many airline carriers and other companies are able legally to accomplish price discrimination and use pricing ladders because not all passengers have the ability or willingness to pay the higher or lower prices when they are offered (p.331 ). Identifying price discrimination Placing restrictions on purchase and use â€Å"Price discrimination† is a way to increase prices to improve profit margins by offering substantial discounts on bundles (McAfee, 2008). Price discriminate is accomplished by airline carriers’ when they offer potential passenger that satisfy certain demographics considerations a range of packages, or combinations of fares and restrictions attached to the purchase of their tickets (Stavins, 1996 & Anderson, & Renault, 2008). This pricing discrimination strategy â€Å"†¦ is known as second-degree or self-selection price discrimination (Stavins, 1996). Under this strategy, the airline is able perfectly to segment potentials passengers into groups according to their willingness to pay (Currie, & Simpson, 2009). Airline carriers are then able to offer them the highest fare in the ladder that they are happy to pay (Currie, & Simpson, 2009). While at the same time allowing passengers â€Å"†¦to choose [other] preferred versions of a product based on their willingness to pay for specific attributes of the good (e.g., time, convenience, flexibility)† (Stavins, 1996) [The citation for a direct quote needs the page number] . The pricing strategies is successful because it allow airline carriers to match â€Å"†¦the passengers relative ‘utility’ across competing products (where multiple factors are considered, including price, departure times, elapsed times, etc† (Ratiiff & Vinod). Therefore, companies were able to charge passengers on the same airline flight different prices for the same service and product. Nevertheless, several practices that involve selling services and or products for different prices can be viewed discriminatory (Anderson, & Renault, 2008). Airline carriers however justified this price discrimination by their cost differences and their demand-base (Anderson, & Renault, 2008). That includes â€Å"†¦the service quality/price sensitivity of various air travelers and offer differential fare/service quality packages  designed for each† (Smith Jr. & Cox). The second type of price discriminations that airline carriers use is the rationing and limiting of the supply of the cheaper goods (Stavins, 1996). One way airlines accomplish this is by adding various restrictions to cheaper or discounted tickets (Stavins, 1996). The discounted ticket is offered to passengers willing to stay at their destination a specific amount of time (Saturday-night stay over) or willing to purchasing their ticket in advance (Stavins, 1996). They also offer their potential passenger a discount or cheaper rate for their bundle roundtrips tickets. These are strategies that allows airline carriers to further separate â€Å"†¦price-sensitive passenger [that have a low disutility] from travel restrictions from price-inelastic [passengers that have a] high disutility from ticket restrictions† goods (Stavins, 1996). However, not all passengers value these types of discounts, especially business travelers. This is because even though this segment of passengers is less price sensitive, they are also less flexible concerning their flight arrangement (Stavins, 1996). Therefore, airline carriers can charge this segment of travelers premium seat fees because they prefer the flexibility that their one-way tickets offer. They also offer them frequent flier plans to help induce them to favor their particular carriers, even when ticket prices and restrictions are higher than their competitor (Stavins, 1996). â€Å"yield management† systems have also enabled airline carriers effectively to determine how many last-minute business travelers will show up willing to pay whatever it takes to get on a given flight (MCCARTNEY, 1997). Whereas, they charge this segment of passengers for their seats, leisure travelers on the same flight are offered a discount price, which is not necessarily based on the price of their ticket, but instead on the flight itinerary (Stern, 1989). These discounts and cheaper tickets are an economic value that this segment of passengers will obliviously value. This is because these potential passengers are more concern about price than the flight schedule (McAfee, 2008 Stavins, 1996). It is a pricing policy that allows airline carriers to provide a wider range of choices, which allow  potential passengers to determine the products and services that best meet their needs. Thereby, passenger satisfaction and loyalty is increased, and the airline carrier is also able to optimize their revenues by up charging different prices for the same seat on their airline (Stern, 1989). However, it is important to note that in today airline hyperturbluent environment airlines ticket prices change frequently in response to supply and demand and to changes in the prices of competitors’ fares (http://www.airlines.org/products/AirlineHandbookCh3.htm). This has resulted in many airline carriers unbundling services that traditionally came with the purchase of a seat, such as baggage checking, seat reservations and even the ability to pay by credit card. The benefits of these strategic practices have increased the revenue of airlines. It has also resulted in some passengers paying only for what the use. While for others that need to check a bag, and do not pay with cash, the cost of the seat will be more. Nevertheless, no company can price discriminate successfully, if they do not have some market power to charge prices above marginal cost (Stavins, 1996). In addition, they must have a diverse population of potential passengers, which they can adequately segment (Stavins, 1996). The â€Å"†¦product resale must be impossible or costly, to prevent arbitrage† (Stavins, 1996) [Needs page number] . The airline carriers’ industries however can accomplish price discrimination because of their hub-and-spoke systems (Stavins, 1996). These system allow different airline carriers to differentiate among themselves by â€Å"†¦occupying different slots in flight schedules, and by offering different route networks† (Stavins, 1996) [Needs page number] . These differentiation in flight routes, flight frequency, and airport dominance has allow many airline carriers obtain â€Å"†¦market power even on relatively competitive routes† (Stavins, 1996) [Needs page number] . Therefore, airline carriers may have market power in some market segments, but in others they do not, which results in higher price discrimination on their more competitive routes (Stavins, 1996). Conclusion Price discrimination is usually thought of as a way to extract as much consumer surplus as possible from each group of consumers, given his or her  utility functions and income. It is a strategy therefore associated with raising prices for less elastic consumers. But in the case of airline carriers, price discrimination is exhibited [Passive voice] through fare discounts. Consumers maximize their expected utility from flying. They choose between various price restriction packages, such as between low price-high inconvenience and high price-no restrictions combinations. The choice depends on the consumer’s elasticity of demand with respect to convenience, time, or money REFERENCES Anderson, Simon P., & Renault, Rà ©gis. August 2008. Price Discrimination. Retrieved 20 April 2010 from http://www.virginia.edu/economics/ Bailey, Elizabeth E., David R. Graham, and Daniel P. Kaplan. 1985. Deregulating the Airline. Cambridge, Mass.: MIT Press. Brady, Stephan, Cunningham, William. Predatory Pricing in the Airline Industry. :Transportation Journal; Fall2001, Vol. 41 Issue 1, p5, 11p Currie, Christine S.M., and Daniel Simpson. â€Å"Optimal pricing ladders for the sale of airline tickets.† Journal of Revenue & Pricing Management 8.1 (2009): 96+. Academic One File. Web. 20 Apr. 2010. Graham, David R., Daniel P. Kaplan, and David S. Sibley. 1983. â€Å"Efficiency and Competition in the Airline Industry.† Bell Journal of Economics, vol. 14 (Spring), pp. 118-38. McAfee , R. , Preston , PRICE DISCRIMINATION, 1 ISSUES IN COMPETITION LAW AND POLICY 465 (ABA Section of Antitrust Law 2008) McAfee , R. , Preston, & Vera te Velde. Dynamic Pricing in the Airline Industry. http://www.mcafee.cc/Papers/PDF/DynamicPriceDiscrimination.pdf MCCARTNEY, SCOTT Airlines Rely on Technology To Manipulate Fare Structure The Wall Street Journal Interactive Edition November 3, 1997. http://www.nd.edu/~mgrecon/datafiles/articles/airlinefarestructure.html Ratiiff, Richard& Vinod, Ben. FUTURE OF REVENUE MANAGEMENT Airline pricing and revenue management: A future outlook Stavins, Joanna. Price Discrimination in the Airline Market: The Effect of Market Concentration. November 25, 1996 Stavins, J. (2001) â€Å"Price Discrimination in the Airline Market : The Effect of Market Concentration†, The Review of Economics and Statistics, 83, 1, 200-202. Stern Andrew, A. Pricing and Differentiation Strategies. Planning Review. Sep/Oct 1989, 17, 5. Retrieved 20 April 21, 2010, from ABI/INFORM Westermann, Dieter, (Realtime) dynamic pricing in an integrated revenue management and pricing environment: An approach to handling undifferentiated fare structures in low-fare markets: Journal of Revenue & Pricing Management; Jan2006, Vol. 4 Issue 4, p389-405, 17p, 4 http://www.airlines.org/products/AirlineHandbookCh3.htm

Historical Development of Nursing Essays

Historical Development of Nursing Essays Historical Development of Nursing Essay Historical Development of Nursing Essay Historical Development of Nursing Timeline Create a 700- to 1,050-word timeline paper of the historical development of nursing science, starting with Florence Nightingale and continuing to the present. Format the timeline however you wish, but the word count and assignment requirements must be met. Include the following in your timeline: Explain the historical development of nursing science by citing specific years, theories, theorists, and events in the history of nursing. Explain the relationship between nursing science and the profession. Include the influences on nursing science of other disciplines, such as philosophy, religion, education, anthropology, the social sciences, and psychology. Prepare to discuss your timeline with your Learning Team or in class. Format all references consistent with APA guidelines. Copyright  © 2013 Penn Nursing Science, University of Pennsylvania School of Nursing nursing. upenn. edu/nhhc/Pages/AmericanNursingIntroduction. aspx nursing. penn. edu/nhhc/Welcome%20Page%20Content/American%20Nursing. pdf Nursing Theories. The Base for Professional Nursing Practice, Sixth Edition Chapter 2: Nursing Theory and Clinical Practice ISBN: 9780135135839  Author: Julia B. GeorgeRN, PhD copyright  © 2011  Pearson Education lorence Nightingale believed that the force for healing resides within the human being and that, if the environment is appropriately supportive, humans will seek to heal themselves. Her 13 canons indicate the areas of environment of concern to nursing. These are ventilation and warming, health of houses (pure air, pure water, efficient drainage, cleanliness, and light), petty management (today known as continuity of care), noise, variety, taking food, what food, bed and bedding, light, cleanliness of rooms and walls, personal cleanliness, chattering hopes and advices, and observation of the sick. Hildegard E. Peplau focused on the interpersonal relationship between the nurse and the patient. The three phases of this relationship are orientation, working, and termination. The relationship is initiated by the patient’s felt need and termination occurs when the need is met. Both the nurse and the patient grow as a result of their interaction. Virginia Henderson first defined nursing as doing for others what they lack the strength, will, or knowledge to do for themselves and then identified 14 components of care. These components provide a guide to identifying areas in which a person may lack the strength, will, or knowledge to meet personal needs. They include breathing, eating and drinking, eliminating, moving, sleeping and resting, dressing and undressing appropriately, maintaining body temperature, keeping clean and protecting the skin, avoiding dangers and injury to others, communicating, worshiping, working, playing, and learning. Dorothea E. Orem identified three theories of self-care, self-care deficit, and nursing systems. The ability of the person to meet daily requirements is known as self-care, and carrying out those activities is self-care agency. Parents serve as dependent care agents for their children. The ability to provide self-care is influenced by basic conditioning factors including but not limited to age, gender, and developmental state. Self-care needs are partially determined by the self-care requisites, which are categorized as universal (air, water, food, elimination, activity and rest, solitude and social interaction, hazard prevention, function within social groups), developmental, and health deviation (needs arising from injury or illness and from efforts to treat the injury or illness). The total demands created by the self-care requisites are identified as therapeutic self-care demand. When the therapeutic self-care demand exceeds self-care agency, a self-care deficit exists, and nursing is needed. Based on the needs, the nurse designs nursing systems that are wholly compensatory (the nurse provides all needed care), partly compensatory (the nurse and the patient provide care together), or supportive-educative (the nurse provides needed support and education for the patient to exercise self-care). Dorothy E. Johnson stated that nursing’s area of concern is the behavioral system that consists of seven subsystems. The subsystems are attachment or affiliative, dependency, ingestive, eliminative, sexual, aggressive, and achievement. The behaviors for each of the subsystems occur as a result of the drive, set, choices, and goal of the subsystem. The purpose of the behaviors is to reduce tensions and keep the behavioral system in balance. Ida Jean Orlando described a disciplined nursing process. Her process is initiated by the patient’s behavior. This behavior engenders a reaction in the nurse, described as an automatic perception, thought, or feeling. The nurse shares the reaction with the patient, identifying it as the nurse’s perception, thought, or feeling, and seeking validation of the accuracy of the reaction. Once the nurse and the patient have agreed on the immediate need that led to the patient’s behavior and to the action to be taken by the nurse to meet that need, the nurse carries out a deliberative action. Any action taken by the nurse for reasons other than meeting the patient’s immediate need is an automatic action. Lydia E. Hall believed that persons over the age of 16 who were past the acute stage of illness required a different focus for their care than during the acute stage. She described the circles of care, core, and cure. Activities in the care circle belong solely to nursing and involve bodily care and comfort. Activities in the core circle are shared with all members of the health care team and involve the person and therapeutic use of self. Hall believed the drive to recovery must come from within the person. Activities in the cure circle also are shared with other members of the health care team and may include the patient’s family. The cure circle focuses on the disease and the medical care. Faye G. Abdellah sought to change the focus of care from the disease to the patient and thus proposed patient-centered approaches to care. She identified 21 nursing problems, or areas vital to the growth and functioning of humans that require support from nurses when persons are for some reason limited in carrying out the activities needed to provide such growth. These areas are hygiene and comfort, activity (including exercise, rest, and sleep), safety, body mechanics, oxygen, nutrition, elimination, fluid and electrolyte balance, recognition of physiological responses to disease, regulatory mechanisms, sensory functions, emotions, interrelatedness of emotions and illness, communication, interpersonal relationships, spiritual goals, therapeutic environment, individuality, optimal goals, use of community resources, and role of society. Ernestine Wiedenbach proposed a prescriptive theory that involves the nurse’s central purpose, prescription to fulfill that purpose, and the realities that influence the ability to fulfill the central purpose (the nurse, the patient, the goal, the means, and the framework or environment). Nursing involves the identification of the patient’s need for help, the ministration of help, and validation that the efforts made were indeed helpful. Her principles of helping indicate the nurse should look for patient behaviors that are not consistent with what is expected, should continue helping efforts in spite of encountering difficulties, and should recognize personal limitations and seek help from others as needed. Nursing actions may be reflex or spontaneous and based on sensations, conditioned or automatic and based on perceptions, impulsive and based on assumptions, or deliberate or responsible and based on realization, insight, design, and decision that involves discussion and joint planning with the patient. Joyce Travelbee was concerned with the interpersonal process between the professional nurse and that nurse’s client, whether an individual, family, or community. The functions of the nurse–client, or human-to-human, relationship are to prevent or cope with illness or suffering and to find meaning in illness or suffering. This relationship requires a disciplined, intellectual approach, with the nurse employing a therapeutic use of self. The five phases of the human-to-human relationship are encounter, identities, empathy, sympathy, and rapport. Myra Estrin Levine described adaptation as the process by which conservation is achieved, with the purpose of conservation being integrity, or preservation of the whole of the person. Adaptation is based on past experiences of effective responses (historicity), the use of responses specific to the demands being made (specificity), and more than one level of response (redundancy). Adaptation seeks the best fit between the person and the environment. The principles of conservation deal with conservation of energy, structural integrity, personal integrity, and social integrity of the individual. Imogene M. King presented both a systems-based conceptual framework of personal, interpersonal, and social systems and a theory of goal attainment. The concepts of the theory of goal attainment are interaction, perception, communication, transaction, self, role, stress, growth and development, time, and personal space. The nurse and the client usually meet as strangers. Each brings to this meeting perceptions and judgments about the situation and the other; each acts and then reacts to the other’s action. The reactions lead to interaction, which, when effective, leads to transaction or movement toward mutually agreed-on goals. She emphasizes that both the nurse and the patient bring important knowledge and information to this goal-attainment process. Martha E. Rogers identified the basic science of nursing as the Science of Unitary Human Beings. The human being is a whole, not a collection of parts. She presented the human being and the environment as energy fields that are integral with each other. The human being does not have an energy field but is an energy field. These fields can be identified by their pattern, described as a distinguishing characteristic that is perceived as a single wave. These patterns occur in a pandimensional world. Rogers’s principles are resonancy, or continuous change to higher frequency; helicy, or unpredictable movement toward increasing diversity; and integrality, or the continuous mutual process of the human field and the environmental field. Sister Callista Roy proposed the Roy Adaptation Model. The person or group responds to stimuli from the internal or external environment through control processes or coping mechanisms identified as the regulator and cognator (stabilizer and innovator for the group) subsystems. The regulator processes are essentially automatic, while the cognator processes involve perception, learning, judgment, and emotion. The results of the processing by these coping mechanisms are behaviors in one of four modes. These modes are the physiological–physical mode (oxygenation; nutrition; elimination; activity and rest; protection; senses; fluid, electrolyte, and acid–base balance; and endocrine function for individuals and resource adequacy for groups), self-concept–group identity mode, role function mode, and interdependence mode. These behaviors may be either adaptive (promoting the integrity of the human system) or ineffective (not promoting such integrity). The nurse assesses the behaviors in each of the modes and identifies those adaptive behaviors that need support and those ineffective behaviors that require intervention. For each of these behaviors, the nurse then seeks to identify the associated stimuli. The stimulus most directly associated with the behavior is the focal stimulus; all other stimuli that are verified as influencing the behavior are contextual stimuli. Any stimuli that may be influencing the behavior but that have not been verified as doing so are residual stimuli. Once the stimuli are identified, the nurse, in cooperation with the patient, plans and carries out interventions to alter stimuli and support adaptive behaviors. The effectiveness of the actions taken is evaluated. Betty Neuman developed the Neuman Systems Model. Systems have three environments- the internal, the external, and the created environment. Each system, whether an individual or a group, has several structures. The basic structure or core is where the energy resources reside. This core is protected by lines of resistance that in turn are surrounded by the normal line of defense and finally the flexible line of defense. Each of the structures consists of the five variables of physiological, psychological, sociocultural, developmental, and spiritual characteristics. Each variable is influenced by intrapersonal, interpersonal, and extrapersonal factors. The system seeks a state of equilibrium that may be disrupted by stressors. Stressors, either existing or potential, first encounter the flexible line of defense. If the flexible line of defense cannot counteract the stressor, then the normal line of defense is activated. If the normal line of defense is breached, the stressor enters the system and leads to a reaction, associated with the lines of resistance. This reaction is what is usually termed symptoms. If the lines of resistance allow the stressor to reach the core, depletion of energy resources and death are threatened. In the Neuman Systems Model, there are three levels of prevention. Primary prevention occurs before a stressor enters the system and causes a reaction. Secondary prevention occurs in response to the symptoms, and tertiary prevention seeks to support maintenance of stability and to prevent future occurrences. Kathryn E. Barnard’s focus is on the circumstances that enhance the development of the young child. In her Child Health Assessment Interaction Model, the key components are the child, the caregiver, the environment, and the interactions between child and caregiver. Contributions made by the child include temperament and ability to regulate and by the caregiver physical health, mental health, coping, and level of education. The environment includes both animate and inanimate resources. In assessing interaction, the parent is assessed in relation to sensibility to cues, fostering emotional growth, and fostering cognitive growth. The infant is assessed in relation to clarity of cue given and responsiveness to parent. Josephine E. Paterson and Loretta T. Zderad presented humanistic nursing. Humans are seen as becoming through choices, and health is a personal value of more-being and well-being. Humanistic nursing involves dialogue, community, and phenomenologic nursology. Dialogue occurs through meeting the other, relating with the other, being in presence together, and sharing through call and response. Community is the sense of â€Å"we. † Phenomenologic nursology involves the nurse preparing to know another, having intuitive responses to another, learning about the other scientifically, synthesizing information about the other with information already known, and developing a truth that is both uniquely personal and generally applicable. Madeleine M. Leininger provided a guide to the inclusion of culture as a vital aspect of nursing practice. Her Sunrise Model posits that important dimensions of culture and social structure are technology, religion, philosophy, kinship and other related social factors, cultural values and lifeways, politics, law, economics, and education within the context of language and environment. All of these influence care patterns and expressions that impact the health or well-being of individuals, families, groups, and institutions. The diverse health systems include the folk care systems and the professional care systems that are linked by nursing. To provide culture congruent care, nursing decisions and actions should seek to provide culture care preservation or maintenance, culture care accommodation or negotiation, or culture care repatterning or restructuring. Margaret Newman described health as expanding consciousness. Important concepts are consciousness (the information capacity of the system), pattern (movement, diversity, and rhythm of the whole), pattern recognition (identification within the observer of the whole of another), and transformation (change). Health and disease are seen as reflections of the larger whole rather than as different entities. She proposed (with Sime and Corcoran-Perry) the unitary–transformative paradigm in which human beings are viewed as unitary phenomenon. These phenomenon are identified by pattern, and change is unpredictable, toward diversity, and transformative. Stages of disorganization, or choice points, lead to change, and health is the evolving pattern of the whole as the system moves to higher levels of consciousness. The nurse enters into process with a client and does not serve as a problem solver. Jean Watson described nursing as human science and human care. Her clinical caritas processes include practicing loving-kindness and equanimity within a context of caring consciousness; being authentically present and enabling and sustaining the deep belief system and subjective life world of self and one-being-cared-for; cultivating one’s own spiritual practice and transpersonal self, developing and sustaining helping-trusting in an authentic caring relationship; being present to and supportive of the expression of positive and negative feelings as a connection with the deeper spirit of self and the one-being-cared-for; creatively using self and all ways of knowing as a part of the caring process to engage in artistry of caring-healing practices; engaging in a genuine teaching-learning experience that attends to unity of being and meaning while attempting to stay within other’s frame of reference; creating healing environments at all levels, physical as well as nonphysical, within a subtle environment of energy and consciousness, whereby the potentials of wholeness, beauty, comfort, dignity, and peace are enhanced; assisting with basic needs, with an intentional caring consciousness, to potentiate alignment of mind/body/spirit, wholeness, and unity of being in all aspects of care; tending to both embodied spirit and evolving spiritual emergence; opening and attending to spiritual-mysterious and existential dimensions of one’s own life-death; and soul care for self and the one-being-cared-for. These caritas processes occur within a transpersonal caring relationship and a caring occasion and caring moment as the nurse and other come together and share with each other. The transpersonal caring relationship seeks to provide mental and spiritual growth for both participants while seeking to restore or improve the harmony and unity within the personhood of the other. Rosemarie Rizzo Parse developed the theory of Humanbecoming within the simultaneity paradigm that views human beings as developing meaning through freedom to choose and as more than and different from a sum of parts. Her practice methodology has three dimensions, each with a related process. The first is illuminating meaning, or explicating, or making clear through talking about it, what was, is, and will be. The second is synchronizing rhythms, or dwelling with or being immersed with the process of connecting and separating within the rhythms of the exchange between the human and the universe. The third is mobilizing transcendence, or moving beyond or moving toward what is envisioned, the moment to what has not yet occurred. In the theory of Humanbecoming, the nurse is an interpersonal guide, with the responsibility for decision making (or making of choices) residing in the client. The nurse provides support but not counseling. However, the traditional role of teaching does fall within illuminating meaning, and serving as a change agent is congruent with mobilizing transcendence. Helen C. Erickson, Evelyn M. Tomlin, and Mary Ann P. Swain presented the theory of Modeling and Role-Modeling. Both modeling and role-modeling involve an art and a science. Modeling requires the nurse to seek an understanding of the client’s view of the world. The art of modeling involves the use of empathy in developing this understanding. The science of modeling involves the use of the nurse’s knowledge in analyzing the information collected to create the model. Role-modeling seeks to facilitate health. The art of role-modeling lies in individualizing the facilitations, while the science lies in the use of the nurse’s theoretical knowledge base to plan and implement care. The aims of intervention are to build trust, promote the client’s positive orientation of self, promote the client’s perception of being in control, promote the client’s strengths, and set mutual health-directed goals. The client has self-care knowledge about what his needs are and self-care resources to help meet these needs and takes self-care action to use the resources to meet the needs. In addition, a major motivation for human behavior is the drive for affiliated individuation, or having a personal identity while being connected to others. The individual’s ability to mobilize resources is identified as adaptive potential. Adaptive potential may be identified as adaptive equilibrium (a nonstress state in which resources are utilized appropriately), maladaptive equilibrium (a nonstress state in which resource utilization is placing one or more subsystems in jeopardy), arousal (a stress state in which the client is having difficulty mobilizing resources), or impoverishment (a stress state in which resources are diminished or depleted). Interventions differ according to the adaptive potential. Those in adaptive equilibrium can be encouraged to continue and may require only facilitation of their self-care actions. Those in maladaptive equilibrium present the challenge of seeing no reason to change since they are in equilibrium. Here motivation strategies to seek to change are needed. Those in arousal are best supported by actions that facilitate change and support individuation; these are likely to include teaching, guidance, direction, and other assistance. Those in impoverishment have strong affiliation needs, need their internal strengths promoted, and need to have resources provided. Nola J. Pender developed the Health Promotion Model (revised) with the goal of achieving outcomes of health-promoting behavior. Areas identified to help understand personal choices made in relation to health-promoting behavior include perceived benefits of action, perceived barriers to action, perceived self-efficacy (or ability to carry out the action), activity-related affect, interpersonal influences, situation influences, commitment to a plan of action, and immediate competing demands and preferences. Patricia Benner described expert nursing practice and identified five stages of skill acquisition as novice, advanced beginner, competent, proficient, and expert. She discusses a number of concepts in relation to these stages, including agency, assumptions, expectations and set, background meaning, caring, clinical forethought, clinical judgment, clinical knowledge, clinical reasoning, clinical transitions, common meanings, concern, coping, skill acquisition, domains of practice, embodied intelligence, embodied knowledge, emotions, ethical judgment, experience, graded qualitative distinctions, intuition, knowing the patient, maxims, paradigm cases and personal knowledge, reasoning-in-transition, social embeddedness, stress, temporality, thinking-in-action, and unplanned practices. Juliet Corbin and Anselm L. Strauss developed the Chronic Illness Trajectory Framework, in which they describe the course of illness and the actions taken to shape that course. The phases of the framework are pretrajectory, trajectory onset, stable, unstable, acute, crisis, comeback, downward, and dying. A trajectory projection is one’s personal vision of the illness, and a trajectory scheme is the plan of actions to shape the course of the illness, control associated symptoms, and handle disability. Important also are one’s biography or life story and one’s everyday life activities (similar to activities of daily living). Anne Boykin and Savina Schoenhofer present nursing as caring in a grand theory that may be used in combination with other theories. Persons are caring by virtue of being human; are caring, moment to moment; are whole and complete in the moment; and are already complete while growing in completeness. Personhood is the process of living grounded in caring and is enhanced through nurturing relationships. Nursing as a discipline is a being, knowing, living, and valuing response to a social call. As a profession, nursing is based on a social call and uses a body of knowledge to respond to that call. The focus of nursing is nurturing persons living in caring and growing in caring. This nurturing occurs in the nursing situation, or the lived experience shared between the nurse and the nursed, in which personhood is enhanced. The call for nursing is not based on a need or a deficit and thus focuses on helping the other celebrate the fullness of being rather than seeking to fix something. Boykin and Schoenhofer encourage the use of storytelling to make evident the service of nursing. Katharine Kolcaba developed a comfort theory in which she describes comfort, comfort care, comfort measures, and comfort needs as well as health-seeking behavior, institutional integrity, and intervening variables. She speaks of comfort as physical, psychospiritual, environmental, and sociocultural and describes technical comfort measures, coaching for comfort, and comfort food for the soul. Ramona Mercer describes the process of becoming a mother in the four stages of commitment, attachment, and preparation; acquaintance, learning, and physical restoration; moving toward a new normal; and achievement of the maternal identity. The stages occur with the three nested living environments of family and friends, community, and society at large. Afaf Meleis, in her theory of transitions, identifies four types of transitions: developmental, situational, health–illness, and organizational. Properties of the transition experience include awareness, engagement, change and difference, time span, critical points, and events. Personal conditions include meanings, cultural beliefs and attitudes, socioeconomic status, and preparation and knowledge. Community conditions include family support, information available, health care resources, and role models. Process indicators are feeling connected, interacting, location, and being situated and developing confidence and coping. Outcome indicators include mastery and fluid integrative processes. Merle H. Mishel describes uncertainty in illness with the three major themes of antecedents of uncertainty, appraisal of uncertainty, and coping with uncertainty. Antecedents of uncertainty are the stimuli frame, including symptom pattern, event familiarity, and event congruence; cognitive capacity or informational processing ability; and structure providers, such as education, social support, and credible authorities. Appraisal of uncertainty includes both inference (use of past experience to evaluate an event) and illusion (creating beliefs from uncertainty with a positive outlook). Coping with uncertainty includes danger, opportunity, coping, and adaptation. The Reconceptualized Uncertainty in Illness Theory adds self-organization and probabilistic thinking and changes the goal from return to previous level of functioning to growth to a new value system. Each of these models or theories will be applied to clinical practice with the following case study: May Allenski, an 84-year-old White female, had emergency femoral-popliteal bypass surgery two days ago. She has severe peripheral vascular disease, and a clot blocked 90% of the circulation to her right leg one week ago. The grafts were taken from her left leg, so there are long incisions in each leg. She lives in a small town about 75 miles from the medical center. The initial clotting occurred late on Friday night; she did not see a doctor until Monday. The first physician referred her to a vascular specialist, who then referred her to the medical center. Her 90-year-old husband drove her to the medical center on Tuesday. You anticipate she will be discharged to home on the fourth postoperative day, as is standard procedure. She is learning to transfer to and from bed and toilet to wheelchair. Table 2-1 shows examples of application in clinical practice that are not complete but are intended to provide only a partial example for each. Study of these examples can provide ideas or suggestions for use in clinical practice. Readers are encouraged to develop further detail as appropriate to their practice.

Criticisms

and not reality. In this sense, Kant sees the Ontological argument as an exercise in verbal analysis, the means where anyone can anaylse the meaning of a word or concept, and draw a logical explanation from it. Therefore, Anselms’ word... Criticisms Free Essays on The Existence Of God - Approaches/Criticisms The existence of God - Approaches/Criticisms There are three major arguments that attempt to explain the existence of God. Firstly, it is important to establish a definition of God. According to philosophers God is an infinitely perfect being that upholds a divine unity of ultimate goodness and of ultimate power. God is referred to as Omniscient, Omnipotent and Eternal. God has unlimited knowledge and intelligence, so basically God is the ultimate model of perfectionism. Though all Philosophers agree with this definition of God, it does not state whether or not this ideal concept of God exists. The Ontological, Cosmological and Teleological have been developed throughout time to attempt to prove God existence. There have also been many criticisms into these arguments, which attempt to disprove each argument. The Ontological argument was developed by Anselm; a theist who argued for the existence of God. In his argument he refers to God as a perfect being, therefore ‘that than which nothing greater can be conceived’. He began his argument by saying that even a ‘fool’ (atheist) can grasp or understand the concept of a being than of ‘which nothing greater can be conceived’ as they already have an understanding or idea of what it means in their mind. Though this idea exists in their mind, it does not mean God doesn’t exist in reality. Anselm refers to God as a perfect being, and because he is so perfect he must have infinite perfectionism, therefore Anselm is arguing that if God lacked existence he would not be perfect, as he is perfect he must exist. There are many criticisms to why Anselm’s Ontological argument fails. Kant saw Anselm’s argument as merely a word game, playing on words and not reality. In this sense, Kant sees the Ontological argument as an exercise in verbal analysis, the means where anyone can anaylse the meaning of a word or concept, and draw a logical explanation from it. Therefore, Anselms’ word...

Endergonic vs Exergonic Reactions and Processes

Endergonic vs Exergonic Reactions and Processes Endergonic and exergonic are two types of chemical reactions, or processes, in thermochemistry or physical chemistry. The names describe what happens to energy during the reaction. The classifications are related to endothermic and exothermic reactions, except endergonic and exergonic describe what happens with any form of energy, while endothermic and exothermic relate only to heat or thermal energy. Endergonic Reactions Endergonic reactions may also be called an unfavorable reaction or nonspontaneous reaction. The reaction requires more energy than you get from it.Endergonic reactions absorb energy from their surroundings.The chemical bonds that are formed from the reaction are weaker than the chemical bonds that were broken.The free energy of the system increases.  The change in the standard Gibbs Free Energy (G) of an endergonic reaction is positive (greater than 0).The change in entropy (S) decreases.Endergonic reactions are not spontaneous.Examples of endergonic reactions include endothermic reactions, such as photosynthesis and the melting of ice into liquid water.If the temperature of the surroundings decreases, the reaction is endothermic. Exergonic Reactions An exergonic reaction may be called a spontaneous reaction or a favorable reaction.Exergonic reactions release energy to the surroundings.The chemical bonds formed from the reaction are stronger than those that were broken in the reactants.The free energy of the system decreases.  The change in the standard Gibbs Free Energy (G) of an exergonic reaction is negative (less than 0).The change in entropy (S) increases. Another way to look at it is that the disorder or randomness of the system increases.Exergonic reactions occur spontaneously (no outside energy is required to start them).Examples of exergonic reactions include exothermic reactions, such as mixing sodium and chlorine to make table salt, combustion, and chemiluminescence (light is the energy that is released).If the temperature of the surroundings increases, the reaction is exothermic. Notes About the Reactions You cannot tell how quickly a reaction will occur based on whether it is endergonic or exergonic. Catalysts may be needed to cause the reaction to proceed at an observable rate. For example, rust formation (oxidation of iron) is an exergonic and exothermic reaction, yet it proceeds so slowly its difficult to notice the release of heat to the environment.In biochemical systems, endergonic and exergonic reactions often are coupled, so the energy from one reaction can power another reaction.Endergonic reactions always require energy to start. Some exergonic reactions also have activation energy, but more energy is released by the reaction than what is required to initiate it. For example, it takes energy to start a fire, but once combustion starts, the reaction releases more light and heat than it took to get it started.Endergonic reactions and exergonic reactions are sometimes called reversible reactions. The quantity of the energy change is the same for both reactions, although the en ergy is absorbed by the endergonic reaction and released by the exergonic reaction. Whether the reverse reaction actually can occur is not a consideration when defining reversibility. For example, while burning wood is a reversible reaction theoretically, it doesnt actually occur in real life. Perform Simple Endergonic and Exergonic Reactions In an endergonic reaction, energy is absorbed from the surroundings. Endothermic reactions offer good examples, as they absorb heat. Mix together baking soda (sodium carbonate) and citric acid in water. The liquid will get cold, but not cold enough to cause frostbite. An exergonic reaction releases energy to the surroundings. Exothermic reactions are good examples of this type of reaction because they release heat. The next time you do laundry, put some laundry detergent in your hand and add a small amount of water. Do you feel the heat? This is a safe and simple example of an exothermic and thus exergonic reaction. A more spectacular exergonic reaction is produced by dropping a small piece of an alkali metal in water. For example, lithium metal in water burns and produces a pink flame. A glow stick is an excellent example of a reaction that is exergonic, yet not exothermic. The chemical reaction releases energy in the form of light, yet it doesnt produce heat.

Storytelling Reflection Essay Example | Topics and Well Written Essays - 250 words

Storytelling Reflection - Essay Example He used a hurriedly set up apparatus to experiment ether on a patient. Subsequently, the novel technique was used to revolutionize the practices of surgeons (Relief of Pain and Suffering, 2). I think it is intriguing to find out the true stories behind medicine and how they came about, leave alone the discovery itself, but also the experimental results of such discoveries. Most of the conclusions of medical researchers are highly exaggerated and misleading. This makes it imperative to do an in-depth research into the real discoveries and experiments that led to the commercialization of a given medicine, for this instance, anesthesia. Personal judgment is more reliable that a misleading medical researchers conclusion (The Atlantic, 2). My initial process of preparing involved research on the intended topic. Background research involved Horace Wells and William Morton, who co-discovered anesthesia. The core research on the topic was on the Anesthesia experiments performed by the two ancient dentists. Listeners responded to my story with other stories, on the tacit part they knew, which led to a better understanding (Sharing Knowledge, 3). Story telling played a key role in sharing knowledge and boosted the learning and hearing likelihoods. Through the use of questions that are provocative, listeners got to give their honest experiences with the Anesthesia. Participants from diverse backgrounds teamed up to create an interesting dynamics (Sharing Knowledge,

How does new technology help the Arts Essay Example | Topics and Well Written Essays - 3000 words

How does new technology help the Arts - Essay Example A number of basic digital hardware and software are within the financial reach of many artists, stimulating more interest, creativity and positive inspiration. The Arts are a vast subdivision of culturally stimulating and creative outlets, in which the artist expresses himself, or his perspective toward one or more aspects. There are various branches of the Arts: Visual Arts are art forms that are essentially visual in nature such as Drawing, Painting, Sculpting, Photography, Filmmaking, Computer Art, Plastic Art and Applied Arts. Literary Art involves expression through the art of written words. It is creative writing based on historical or factual information, or just original imagination, such as poetry, essays, prose, drama and autobiography. Performing Arts are art forms in which artists use their physical presence, body or voice to convey artistic expressions. These art forms include dance, music, opera, theatre, spoken word, circus arts and musical theatre. Fine Arts are art f orms developed mainly for aesthetics and/or concept. Commonly included are the  visual art  and  performing art  forms, such as painting, sculpting, collage, decollage, assemblage, installation, calligraphy, music, dance, theatre, architecture, film, photography, conceptual art and printmaking. Technology, if used positively, is a massive transition from reality to creative stimulation in the Arts. It is evolving in major focus of the Arts, mainly in terms of Marketing and Public Relations. Arts Marketing Marketing is defined as a sound, effective technique for influencing behavior and creating successful exchanges (Bernstein, 2007). It involves finding new areas for improvement, new areas where an organization can develop its approach to customers in the long-term benefits of each party. Arts, in relation to Marketing, involves reflecting vision and commitment in relevance to the relationships of the customers and the organization, enhancing the artistic mission of an arts organization, building a long-standing exchange with customers and exhibiting arts as a form of creativity and passion to a specific or vast audience (Elizabeth Hill, 2003). Arts Organizations are non-profit organizations usually in the form of an association or foundation. These are formed for the purpose of developing and promoting the work of artists in various visual and performing art forms such as film, sculpting, dance, painting, multimedia and poetry. Such organizations are mainly museums, theatres, concert, and opera halls. Although these platforms have existed for centuries as a form of artists’ retreats, the development of government organizations such as the Arts Council of Great Britain, The Canada Council, The New York State Council on the Arts and the National Endowment for the Arts, have helped, as all of these organizations award grants to help promote the growth of art and culture. Arts Marketing seeks to capture an audience and advance the artistic abilitie s of art organizations accordingly. It aims to create inspirations for creativity and exhibit it where it is appreciated. In terms of Performing Arts, various theatres and concert halls advertise for publicity and artistic appreciation. This exhibition of creativity also helps the performing artists gain incentive to improve their skills and develop interactive abilities. As newer technologies evolve, customers have grown to expect more customized experiences of the Arts. High technology has made possible and common for people to exhibit their own art, place orders at any time of day and find virtually any kind of information they seek. The Arts organizations that use modern technologies to exhibit various forms of art (visual,

Culture and Change Essay Example | Topics and Well Written Essays - 750 words - 1

Culture and Change - Essay Example A culture is made up of different life experiences that an employee brings with him/herself in a workplace. The whole philosophy of culture becomes especially important to comprehend when an inevitable need to bring or manage an organization-wide change initiates. Thus, it can be said that culture and change are very closely associated in the context of an organizational setup. Mullins (cited in Venance, 2007) claims that those employees who deliberately resist changes in the organizational culture and system can actually cripple the expected performance criteria of that organization, since the importance of change is profoundly necessary in today’s competitive world. Appreciable organizational culture can be seen at Wal-mart which is one of the biggest corporations in the world. Sam Walton, who is the founder of this company and is also called the king of customer service, has redefined the managerial culture which is too conspicuous to be ignored at Wal-mart today. Wal-Mart has been strictly following the religiously derived managerial concept of servant leadership in an attempt to answer the expectations of their employees. (Johnson, 2010). Paying attention to the expectations and demands of the employees has always been considered very important for lining up with the desires of the customers and increasing the productivity level. Also, Wal-mart has always focused on keeping the costs low for winning over the other major companies in the competition. Simple to comprehend and easy-to-relate-to rules are made almost every other month and actions are quickly taken, while respecting the demands of the organizational culture. Basically, the bedrock of the Wal-Mart culture is mainly associated with elements like religion, patriotism, a classless collective identity, modern science, rationality, ecology, relentless struggle, and low costs. The phenomenal culture existing in Wal-mart originates from three fundamental beliefs, which are

2000 word essay which explores the concept of evidence based practice

2000 word which explores the concept of evidence based practice and evaluates its relavance and contribution to practice - Essay Example For instance, depression (American Psychiatric Association, 2000; Lowe, et al 2001) and anxiety disorders (American Psychiatric Association; 2000), particularly obsessive compulsive disorder (Halmi et al., 2003), are among the comorbid conditions found in people with eating disorders. In adolescent-onset anorexia, depression appears to be triggered by the eating disorder, and the individual is put at risk for experiencing future depressive episodes (Ivarsson et al, 2000). Although anorexia affects persons of all ages, adolescence appears to be the developmental period of particular significance in the etiology of eating disorders; hence, identification and clinical intervention during this stage are crucial. This paper aims to synthesise and critically analyse the existing research on the treatment of anorexia nervosa in adolescence from the perspective of evidence based practice, more particularly family therapy systems approach. The term â€Å"evidence-based† is prevalent within the health care setting today. If there is any doubt, a quick glance at the current medical and allied health research literature would remove it. Medical doctors, physical therapists, occupational therapists, speech-language pathologists, music therapists, and many others, have begun to describe their treatment interventions as evidence-based. As with most established theories and concepts, the thoughts and beliefs behind evidence-based medicine have been traced by some to practices of ancient cultures throughout history (Sackett et al, 1996). However, most authors on the subject will credit Archie Cochrane, Scottish epidemiologist, with developing the modern concept behind evidence-based medicine, which was made popular through his landmark text Effectiveness and Efficiency: Random Reflections on Health Services (White, 1997). The most widely known and commonly quoted definition of evidence-based

Apple Watch and its luxury gambit Essay Example | Topics and Well Written Essays - 500 words

Apple Watch and its luxury gambit - Essay Example t it made its launching a disappointment to the many apple fans waiting for the product as they questioned what possible feature or reason would make them spend that amount of money. The watch comes with beautiful wrist bands that make them look like jewellery and a button that makes swiping of the screen easier, however, it was noted during the launch, there were confusing array of touches and buttons that were not as obvious as other apple devices. The launch of this watch was a disappointment to many because it did not meet the high standards people expected from it. Though there are many who appreciate and embrace the watch as it is, appreciating the features that come with it, the design and its uses, most people did not like the high prices associated with the new device and also how it did not have extra features from most smart phones as such. There are advantages of this commercialization. The market has had a chance to get to know the product. Apple’s creation of Healthkit in its operating system for the watch has brought a new feature where the consumer can keep track and record of health and fitness. The watch also receives data from smart phones and tablets-even though this is still restricted to the Apple ecosystem. The watch has a mobile payment services thus it can be used in transactions, just like a phone. It also has siri a personal assistant and it can control Apple TV. The risks related to commercialization of this watch outweigh the benefits. This is firstly, due to its very high prices announced when it was being launched. The prices seem to target a specific class of people. The other reason is due to its dependence to a smart phone- the watch cannot run on its own-just like the way apple phones share data with other apple phones only. (Lashinsky, 2012). However, there a few applications that can run independent of the smart phone like telling the time. Appropriate research and consideration of the target market did not seem to be put

2000 word essay which explores the concept of evidence based practice

2000 word which explores the concept of evidence based practice and evaluates its relavance and contribution to practice - Essay Example For instance, depression (American Psychiatric Association, 2000; Lowe, et al 2001) and anxiety disorders (American Psychiatric Association; 2000), particularly obsessive compulsive disorder (Halmi et al., 2003), are among the comorbid conditions found in people with eating disorders. In adolescent-onset anorexia, depression appears to be triggered by the eating disorder, and the individual is put at risk for experiencing future depressive episodes (Ivarsson et al, 2000). Although anorexia affects persons of all ages, adolescence appears to be the developmental period of particular significance in the etiology of eating disorders; hence, identification and clinical intervention during this stage are crucial. This paper aims to synthesise and critically analyse the existing research on the treatment of anorexia nervosa in adolescence from the perspective of evidence based practice, more particularly family therapy systems approach. The term â€Å"evidence-based† is prevalent within the health care setting today. If there is any doubt, a quick glance at the current medical and allied health research literature would remove it. Medical doctors, physical therapists, occupational therapists, speech-language pathologists, music therapists, and many others, have begun to describe their treatment interventions as evidence-based. As with most established theories and concepts, the thoughts and beliefs behind evidence-based medicine have been traced by some to practices of ancient cultures throughout history (Sackett et al, 1996). However, most authors on the subject will credit Archie Cochrane, Scottish epidemiologist, with developing the modern concept behind evidence-based medicine, which was made popular through his landmark text Effectiveness and Efficiency: Random Reflections on Health Services (White, 1997). The most widely known and commonly quoted definition of evidence-based

Justice System in The United Arab Emirates Research Paper

Justice System in The United Arab Emirates - Research Paper Example The judicial systems of Emirates of Dubai and Ras Al Khaimah are not part of the UAE Federal Judicial Authority because these Emirates have retained the power of their judicial systems. Therefore, the Emirates of Dubai and Ral Al Khaimah have no Federal Courts and all matters arising within these Emirates are handled by the Local Courts. The Federal Supreme Court of Cessation based in Abu Dhabi can appeal against any judgment passed by the Federal Courts of Abu Dhabi, Sharjah, Ajman, Fujairah and Umm Al Quwain. The Emirate of Ral Al Khaimah has no Federal Supreme Court of Cessation. The UAE Federal Law enacted by the UAE Supreme Council is applied at both the Federal Courts and Local Courts in UAE. Furthermore, the Courts also apply laws and regulations passed by the ruler. However, similar laws and legal procedures are applied in each of the Federal and Local Courts in Emirates but there are some differences. In cases where a conflict arises between Federal and Local Law then in suc h cases, the Federal Law will prevail. The justice system of the UAE is very efficient and fair which is the primary reason why UAE has attracted businesses from around the world. (Price et al 1998). The primary sources of law in UAE are the statutory codes because UAE has a Legal System which pertains to a civil law. The Egyptian legal system has influenced the UAE legal system to a great extent, thus the system enacted in the UAE can be regarded as a reflection of the system in Egypt. Interestingly, the Egyptian system has been influenced by French and Roman legal systems; therefore the legal system of UAE is an amalgamation of the systems of France, Rome, and Egypt. However, the major source of law is inevitably the Islamic Law codified in Shariah. The procedures and practices followed by the judicial system of UAE are based on Islamic Law.  

Career Goals Essay Example for Free

Career Goals Essay Have you ever had a goal in life you just had to reach? Well my goals in life are to join the navy and become a civil engineer. I realize that there are numerous ways to become a civil engineer, but I chose to join the navy because I feel it would be most beneficial to me. My first career goal after high school is to join the navy. To do this I will need to meet with a recruiter. Also I will need to take the asvab, after taking the asvab I will also need to take a series of fitness tests. Once in the navy I will need to attend officer candidate school, also I will need to attend civil engineering corps Officer School. After I have completed this I will also need to acquire a four year degree in civil engineering. Some of the reasons I want to join the navy. One reason I want to join the navy is because while in the navy they will send me to collage at no cost to me. Another reason is because if I enlist long enough I will be eligible to retire. Also I want to join the navy so I can travel the world. In order to become a civil engineer I chose to join the navy. I chose to join the navy over just going to collage because I believe that the navy has more to offer me. Some added benefits of joining the navy is they will provide me with a job. Also some benefits are I will get paid while I’m in school, also they will provide me a place to stay. Some added requirements of being in the navy are that I have to attend officer candidate school and also I must attend civil engineering corps officer school. A specific that I need to become a civil engineer is I need a four year degree in civil engineering. My two top choices of collages to get this degree at are either the University of Washington, or the University of Arizona. Different paths I could of chose are getting a degree in technical engineering, or electrical engineering. I chose civil engineering because I feel it will most prepare me for the career I have chosen. My career goals in life are to join the navy and become a civil engineer. The reason I chose this is I feel that the navy offers me more of an opportunity to travel and also to get hands on experience. Another reason I chose the navy is they will pay for my schooling.

Production Capacity of Jersey Cows

Production Capacity of Jersey Cows The aim of this study to look up at production capacity of Jersey cows in Malaysia including environment factors effecting milk production Jersey cows. This study to estimated production capacity Jersey cows at state of Keratong, Muadzam, Pahang at longitude 103.4833 °T and latitude 2.8167 °U in closed house system with temperature 24 °C. The milk production of Jersey cows not only referring to genetic makeup but also another environment factors must be consider. The patent climate in Malaysia is hot and humid and Malaysia in tropical region because of this kind of climate the performance Jersey cows not equivalent as Jersey cows performance at temperate country. A good and practical farm management effluence performance of Jersey cows, if a good farm management practice not seriously consider it effect performance Jersey cows milk yield decreases or cannot reach as usual. Because of differences between Malaysia climate and temperate country resulting Jersey cows performance an d milk production. Data collecting from farm record which is Makmur Dairy Sdn Bhd under LKPP (Lembaga Kemajuan Perusahaan Pertanian) corporation. Data collecting including milk production milk yield, lacataion length, dry off period, animal identification and date of giving birth. In this study, research done in the area on milk production was reviewed. Constraints to increase production were summarized and proposals are made for the sustainable development of the dairy sector in Malaysia. CHAPTER 1: INTRODUCTION 1.1 Malaysias Geography Malaysia in the south east part of Asia has a geographic coordinate that reads 2 ° 30 north latitude and 112 ° 30 east longitude. Malaysia country classified as hot and high humid climate and has tropical weather influenced by monsoonal climate because of its latitude and longitude. But the weather in general in Malaysia is without extremities. Monsoon comes twice a year, during the summer season and the other during winter. Summer monsoon brings lots of downpour in Malaysia. Winter monsoon does not cause that much rain and is generally dry. 1.2 Malaysia Self-Sufficiency In Malaysia agriculture history, Malaysia produce milk product at insufficient level and cannot supporting demand from consumer because this may attributed to poor production local dairy animals. The demand for milk from consumers increased each year. In last decade, Malaysia almost depends on milk importation from other countries to fulfill the demands from consumers, about 95% is imported. The statistics from the Department Veterinary of Services in year 2008 for milk product in Malaysia recorded 56.49 million liters of milk was produced in that year and the self-sufficiency in livestock recorded 4.89%. In year 2010, the government target output of milk is 65 million liters and at least 10% self-sufficiency. Malaysia Dairy Industries The cattle population in Malaysia home 900,000 cattle and the large population at northern state of Kelantan 141,502 of cattle and in the southern state of Johor 111,000 of cattle. From the total population only 4% are dairy cattle (DVS, 2008). The total dairy farmer in Malaysia categorize to three structure; smallholder, semi-commercial and commercial. Dairy farm at smallholder level in Malaysia is recorded 519 and has least than 30 number of breeder (DVS, 2008). Meanwhile, 32 semi-commercial dairy farm levels have recorded and have 30 to 50 numbers of breeders (DVS, 2008). The commercial level dairy farms were recorded 28 of them and have more than 50 numbers of breeders (DVS, 2008). Reported milk yield of Malaysia 2631.3 kg per year (DVS, 2008) compared from central of Thailand produced yield from Malaysia that is 3500 kg per year (Kasetsart J, 2009). 1.4 Fact of Jersey Cows The term production indicates something going to be produced or an output product. Meanwhile, capacity is describing the total amount of production at maximum or optimum level. Production capacity of Jersey cow can be measured from the total amount of milk yield. In dairy cattle, Jersey is one of the popular breeds. The origin Jersey cows are from the small British Island of Jersey in the English Channel. A Jersey also known as Alderney cattle at island of Jersey. The colour of Jersey varies, usually light gray to a dark fawn, being darker around the head and hips. Jerseys are noted for the highest milk fat of all dairy breeds. The body of Jersey is at medium ranking categories. An average weight excellent Jersey cows is around 408 to 544 kg. The milk yields of Jersey cow be able to categorize under intermediate milk producer can reach up to 13 times from their own body weight in milk. 1.5 Factor Affecting Production Capacity of Jersey Cows There are two major factors which can influence production of dairy cows, the main quantitative factor is genetics of the breed and the second qualitative factor is environmental. Under normal situations, milk production increasing during the first six week of lactation and then gradually decreases. Breed of cow effluence milk yield, in North America Holstein cow has the highest volume of milk production and total production 7073 kg per year and Jersey cows 4444 kg per year. A dry off period usually practices for two months to the next calving. Milk yield usually reduced when dry period is less than 40-60 days (25-40% less milk). Meanwhile, dry period longer than 60 days in length does not result in a significant increase in milk production. For effective management is accurate quantitative knowledge of factors affecting productive performance of animal (Bagnato and Oltenacu, 1994). The actual amount of milk production affected by several factors of parity, geographic region and mana gement factors. The environment factor is in terms of nutrition intake of cows in the feed ration. Stage of lactation and persistency can be determined by different stages of lactation phase. Management factors consider as feed and water supply the cows consume, insufficient water supply for few hours will result in a rapid drop in milk yield. Milking intervals practices at farm may result milk production. An unequal milking interval produces less milk than those milked at equal intervals. Milking frequency twice a day yields at 40% more milk than once a day. 1.6 Objectives Information on production capacity Jersey cows in Malaysia is still unpublished therefore the present of study was designated by following objective: To measure production capacity Jersey cows at state of Keratong, Muadzam, Pahang at longitude 103.4833 °T and latitude 2.8167 °U in closed house system with temperature 24 °C is . Study various environmental factors affecting performance of Jersey cows in Malaysia Adaptability of Jersey cows in Malaysia climate CHAPTER 2: LITERATURE REVIEW A research regarding Jersey cows performance has been conducted in various part of the world. There are two major factor affecting milk productions in dairy cattle. First are quantitative factors referring to genetic of dairy breed and the second is qualitative factors referring to environmental factors such as nutrition, stage of lactation and persistency, milking practices, age and size of cow, dry period, estrous cycle and pregnancy, environment. An environmental factor has been stated are known to exert influence on the performance dairy cattle (Javed et al, 2000). A study of factors affecting milk yield in dairy cattle has conducted many people for many years and until now. For next paragraph is the review of studies regarding factors affecting milk yield from various part of the world. These reviews are indicated large differences in performance different of breed in different environment. These variations may be either due to breed, herd, location and environmental differences. 2.1 QUANTATIVE FACTORS 2.1.1 Genetics Differences of dairy breed may reflex on different of milk yield. Comparison between two breed dairy cattle Holstein and Jersey, Holstein has ability to produce more milk higher than Jersey breed. The review of literature revealed that lactation milk yield in Holstein cows can produce up to 5,902 kg and Jersey cows 3,797kg (Gacula et al, 1968). The fat contain in milk composition of Jersey cow is higher than Holstein cows also higher than others dairy breed. Fat percentage in milk composition of Jersey cows is 5.01% and Holstein 3.35% (Sharma et al, 1988). Jerseys had the highest fat content, followed by Guernseys, Brown Swiss, Ayrshires, and Holsteins (Gacula et al, 1968). 2.2 QUALITATIVE FACTORS 2.2.1 Nutrition A nutrient value content for dairy performance in dry matter intake is 89.5%, crude protein 16.6%, crude fiber 10.1%, energy expenditure 3.8%, ash 6.1%, nitrogen free extract 63.4%, total digestible nutrients 72.8%, metabolism energy 11.10%, calcium 0.77% and 0.66% of phosphorus (DVS, 2000). The recommended rates of concentrate feeding for lactating cows from department of veterinary services ministry of agriculture Malaysia suggest for uniformity a concentrate feeding is assumed to be a mixture of feed materials containing a minimum of 15% crude protein, 10.6 MJ/kg metabolize energy, 0.60% calcium, 0.4% phosphorus and 1.0% salt show at table 2.2.1, appendix. Knowledge of feed quality and intake, the extent of cows nutrient reserves that can be used to support milk production can now estimated (Alderman and Corttrill, 1993) Several nutritional factors can influence milk composition. These include plane of nutrition or underfeeding affect milk composition. Under feeding dairy cows can reduces lactose percentage and increasing milk fat percentage. Negative energy balance increasing milk fat Imbalance rations on animal feed (low energy and protein) resulting milk fat decrease and protein percentages (Petersen et al, 1986). Effects on ISO (isometric) on milk fat can probably explain by two factors. First, primiparous cows of high groups of lost substantial body weight during lactation induce negative energy balance and second factors high: moderate of groups produce less milk content higher milk fat because milk production and milk fat are negatively correlated (Pierre et al, 2003). As the proportion of the concentrate in ration increases above 50-60% milk fat percentage tends to decline. These conditions happen because of lower ruminal production of acetate and butyrate (function to synthesis milk fatty acid in mammary gland) associated with high concentration diets in feeding rations. A feeding system may effect on mammary gland health have been studies recently (Ouweltjes et al., 2007). Furthermore, there are interactions between breed and feeding system in dairy cattle may contributed mammary gland health status and milking characteristics (Ouweltjes et al., 2007). A grass feeding system and different level of concentrate offered to animals, (Turner et al., 2003; McCarthy et al., 2007) not effecting lactation stage and somatic cell count. A grazing system applied on dairy cattle (McCarthy et al., 2007), with high concentrate diet have influence average milk flow and milk duration. The extent of lactation period of milk depression is subjective by other feedi ng regime such as rate of feeding and feeding system. In wide-ranging, the impact of feeding high levels of concentrates on milk fat percentage will be less where total mix rations are fed and if feed is offered three or more times daily. There are about 30 nutrients essential for dairy cattle performance, maintenance, reproduction, growth, and lactation. The good quality of feedstuff in ration is to make sure the animal get enough supply for those 30 nutrients, lacking with nutrient in feed can corrected in giving additional supplement to animal. With intensive herd management, deficient nutrients such as those providing energy, protein, minerals or vitamins can be supplied by forage and supplements of adequate quality to produce acceptable gains in milk yield and weight gain (National Research Council, 1971; Bath  et al.,  1978; Ranjhan, 1981). Miller and Dickinson (1968) and Miller (1969) in their studies has found that management practices related to feeding, particularly amounts of concentrate, and reproductive efficiency (percentage days in milk) have the greatest value in predicting herd average milk production and are the most important characteristics common to higher producing herds. McCullough (1969), V erità © and Journet (1971), Ekern and Sundstol (1974), Ekern, Save and Vik-Mo (1975) and Wilkinson (1983) have also shown that intensive feeding of ensiled forages and hay, containing appropriate grain and protein requirements and fed free choice, increases and/or maintains milk production at a higher level by providing the opportunity for animals to be fed the conserved products with minimal loss of nutrients during periods of inadequate forage supplies. 2.2.2 Stage of Lactation and Persistency The animals become profitable when the animal can produce milk at maximum level of lifetime. An earlier selection of animals for their productivity should lead to maximum output in total lifetime (Murdia and Tripathi, 1993). Milk production increases with lactation number and is maximized in the fourth or the fifth lactation. According to Walsh et al, (2007) reported all breed reached average milk flow at week fifth to eight lactation, followed by a gradual decline until lowest point average milk flow at the end of lactation. This is result of the increasing development and size of the udder and the increasing body size over that of the first lactation dairy animal. The expected mature yield (mature equivalent) of primiparous cow calving at two years of age can be estimated by multiplying yield of first lactation by 1.3. Persistency of lactation refers to the ability of the cow to maintain production after peak milk yield; persistent cows consider when the cow tends to maintain their peak yield within a lactation period (Togashi and Lin, 2003; Kamidi, 2005). The cost of the production system can reduce if practice persistency of lactation these is associated with feeding and health costs, reproductive performance, resistance to diseases and the return from milk considering a 305 days production cycle (Solkner and Fuchs, 1987; Dekkers  et al., 1996, 1998). Persistent animals require less energy in early lactation, allowing greater utilization of cheap roughage (Solkner and Fuchs, 1987). All farmer desires their animal given profit in return, according to Dekkers et al. (1997) dairy cow with greater lactation persistency tend to be more profitable than average dairy cows when yield and lactation persistency are correlated, even though the differences are relatively small unless reproductive performan ce is very poor. Other studies however have identified a greater difference in production between once and twice daily herds during late lactation than in early lactation (Claesson et al., 1959), indicating that the persistency of cows milked once daily is less than that of cows milked twice daily. Muir et al. (2004) reported favorable relationships among lactation persistency and some measures of fertility and poor relationships with others (e.g., calving interval). Appuhamy et al. (2007, 2009) reported that diseases tend to significantly affect lactation persistency, rather than persistency affecting disease occurrence, and that there are undesirable genetic correlations among persistency of milk and fat yields and several metabolic diseases. Harder et al. (2006) also reported unfavorable genetic correlations among persistency and metabolic diseases. Lactation persistency as defined by Cole and Van- Raden (2006) is useful as a measure of the shape of the lactation curve independen t of 305-d yield. The results of Jamrozik et al. (1998) and van der Linde et al. (2000) suggest that lactation curves and persistency differ between lactations, and differences probably exist between early- and late-maturing breeds. This was confirmed by Cole et al. (2009), who estimated lactation curves for first and later parities in 6 breeds of dairy cattle and found that parameters describing the shapes of the curves can vary considerably. 2.2.3 Milking practices Milking Jersey cows three times daily results in an average increase. The increase in yield due to milking three times daily varies greatly with the producing ability of the animal on twice a day milking and is inversely proportional to such ability. High producing cows show a smaller increase in yield when milked three times daily than do cows with a lower inherited producing ability. Milking heifers three times daily on test results in a slightly greater development than when the initial records are made on twice a day milking of approximately 19 per cent in butterfat and 21 per cent in milk yield. In addition, positive correlations have been reported between milk yield and MD (Petersen et al, 1986; Weiss et al., 2004). Similarly, results from this study indicate positive correlations for milk yield with average milk flow and milk duration suggest that these correlations differ depending on breed. 2.2.4 Dry period Dry period is non-lactating days between lactations. This non lactation time is generally a 5 to 6 weeks rest period before freshening. The duration of dairy cattle stop from lactating. This duration is needed for regression of mammary gland. During this period, mammary gland starts to repair or develop back imbalance tissues to normal. To induce this process of repairing a special treatment is applied to cow called dry cows therapy. The dry cows therapy is a treatment for controlling bovine mastitis from intact to mammary gland. Usually the recommended dry period practices for about 45-50 days. A practices dry period is less than 40 days, can effect on decreasing of next lactation (Swanson 1965; Coppock et al. 1974; Dias and Allaire, 1982). According to Capuco et al. (1997) the cows given 60 days dry period can increasing mammary DNA synthesis begin occurring about 2.2.6 Calving Interval and Parity Breeding efficiency can be measured by looking to calving interval and age at first calving, although they are not the only measures of herd performance. Speicher and Meadows (1967) have suggested the correct calving interval is 12 months (365 days), the longer calving interval more than 12 months can lose the profit in overdue of feed cost. McDowell (1971) considers the following factors adequate for successful dairying: a calving interval between lactations of less than 450 days; an excess of 200 days in lactation; less than 30 percent female mortality; and proper management. According to Murdia and Tripathi, 1993 a good calving interval for cows at range of 360 to 390 day (12 month to 13 month), if the calving interval shorten than 360 days it can give impact on milk production decline 3.7 to 9 percent in lactation length. If the condition vice versa having longer calving interval more than 450 days (15 months) it will increasing milk yield production for 3.5 per cent. Although, the longer calving interval more 15 months increased milk production this situation may reflect on farmer profit because the milk has been produced not equivalent to feed has been giving to the cows. A study from I.R. Bajwa et al, 2004 the effect of average lactation length on parity is decreased begin at parity 4th and 5th, after parities 5th the milk yield and lactation length start to increased back until parties 8. Both breed and parity effects have been shown to exist on lactation curves (e.g. Wood, 1980; Collins-Lusweti, 1991; Friggens et al., 1999; Rekaya et al., 2001) and can now easily be included as fixed factors in test-day models and other linear models that incorporate time trends (Van der Werf et al., 1998; Macciotta et al., 2005). 2.2.7 Environment Results to characterize effects of climate on milk production are important for commercial milk production, perhaps particularly under circumstances where climate is a limiting factor (Sharma et al, 1988). Major benefits of shade management on milk yield appear to be related to indirect effects such as feed intake and digestive tract performance rather than direct effects on ability of the mammary gland to synthesize milk (Collier et al, 1981). Cows calving from November through March yielded more milk and fat than cows that calved in July and August. These results are similar to those reported by Blanehard etal. (3), Frick et al. (6), Gaunt et al. (7), and Wunder and McGilliard (22). Seasonal variation in animal performance in tropics is expected to be primarily a manifestation of variation in feed quality and quantity (Javed et al., 2000). The animals of temperate regions maintained in tropical conditions cannot behave similarly in both the environments (Javed et al., 2002). This i ndicated that the animals of temperate zone did not adapt to the harsh environments of tropics and could not perform satisfactorily (Javed et al., 2004). CHAPTER 3: MATERIALS AND METHODS 3.1 Source of Data The data on 233 performance records of 170 Jersey heifers, five bulls for natural mating purpose and 58 are in calves stages during the period of 2007 through 2009 were utilized for present study. All Jersey breed at this farm are pure and imported from Australia. After editing 3.2 Background and Location of Farm The data sources are from farm dairy at state of Keratong, Muadzam, Pahang at longitude 103.4833 °T and latitude 2.8167 °U in closed house system with temperature 24 °C. The sources of data are from Makmur Dairy Sdn Bhd. The Makmur Dairy Sdn Bhd was established under LKPP (Lembaga Kemajuan Perusahaan Pertanian) Corporation Sdn Bhd in May 2006. At beginning farm opening, 300 Jersey animals were imported from Australia. This farm not only focusing on dairy animal but also doing multiple ranches including feedlot cattle, dual purpose goat Shami breed. 3.3 General Management and Feeding Practice This farm practices cut and carry feeding (Guinea and Napier grass) system 40kg/head and concentrate 5-10kg/ head. This farm practices machine milking two daily routine, first at 7.00am and 4.00pm at evening. The entire animal at this farm are under intensive system. After milking process, the animal allow to free-range at paddock from 9.30 am until 10.00am. In this farm consist with two animal barns, barn A and barn B. Inside barn B; it completely closed house system provided with cooling pad and seven fans for cooling purpose. At this farm, they practices animal bedding using sand. 3.4 Data Record Extraction and Editing The following data will be collected: animal identification, date of calving, lactation milk yield, lactation length, lactation stage, parity, dry period, calving interval and nutrition value on concentrate feed. Following performance traits will be recorded/analysis and utilized in the present study. The data analyzed starting from year 2007 until 2009. 3.4.1 Lactation Milk Yield and Milk Yield per Day Total milk produced during a given lactation which terminated normally was considered as lactation milk yield. Lactation milk yield Effects of lactation length; calving interval and service period on lactation milk yield also estimated. Two lactation milk yields was grouped to three classes, this is because the farm newly established for about four years. The mean value, average and standard deviation is counted for lactation milk yield and milk yield per day beginning from 2007 until 2009. 3.4.2 Lactation Length Lactation period each cows is counted start from calving until the cows has dried up. Each of lactation length of cows is counting on average and mean value. The length of lactation period depends on production level and open period of each cow. 3.4.3 Lactation Stage In analyzed the data lactation stage has categorized to three sub classes the three sub class are 1 early lactation stage between 14 to 100 days, 2 mid lactation stage between 100 to 200 days and 3 late lactation stage between 200-350 days. The data regarding from 2007 to 2009 record farm keeping. 3.4.4 Parity The date of calving from first calving at years 2007 until 2009 is record for analyzing the data. Parity if a one major factors effect on lactation milk yield. More parity indicated lower of milk yield in dairy cattle especially in parities 4th and 5th (I.R Bajwa, 2004). The parities are divided into three group first is one for first parity, second is two for second parity and third is three for third parity. 3.4.5 Dry Period The right and proper management of dry period is one of keywords to make sure the milk production can stand in a high amount production. The data regarding dry period is going to make three sub class 1 dry period for 0 to 40days, 2 dry period 40 to 70 days and 3 dry period above 70 days. 3.4.6 Calving Interval The data from date of parturition is used for calculating calving interval, the means, standard deviation and standard error are applied to summarize the data. Because of the cows only have three parities, the calving interval is calculated based on first parities and second parities. The calving interval is divided into four categories that is zero represented for no calving interval, one is below than 360days, two for calving interval at range 360 to 390days and three is above 390. 3.4.7 Nutrition Value on Concentrate feed Proximate analysis of concentrate feed from the farm record is taking up for comparing the nutrition value concentrate feed at farm with recommended nutrient requirements for dairy cattle in different lactation stage. Nutrition is a factors effecting milk production of dairy animal. In different year the nutrition value is different in each year. The lactating ration and the basal ration nutrition value are taking up for comparison on effecting milk yield. 3.5 Data Analysis Analyzing data with unequal parameters and disproportionate sub class analyzed using statistical analysis software SAS 9.0. The data will be analyzed using SAS software with analysis of variance (ANOVA). The two independent variables in ANOVA are called factors, the factors are genetic and environment which can influence milk yield of Jersey cows. Mean values of several factors effecting on milk production capacity of Jersey cows were analyzed on analysis of variance (ANOVA): Production Capacity Based on Year 2007-2009 relating nutrient value on concentrated feed. Production Capacity Based on Parity, Lactation Stage, Dry Period, and Calving Interval. CHAPTER 4: RESULTS AND DISCUSSION The analysis performance groups of Jersey cows productivity from 2007-2009 in various responses factors is interpret. 4.1 Production Capacity Patterns 4.1.1 Production Capacity Based on Year 2007-2009 Relating with Nutrient Value on Concentrated Feed Calculating mean of milk yields begin from year 2007 to 2009 for 126 milking cows was 906.15 ±63.32 liters with a coefficient of variation 78.4%. The highest yield was 949.91 liters at year 2009. In year 2007, the mean milk yield is 615.46  ±85.23liters with coefficient variations 57%. In the next year 2008 the mean milk yield is 953.27 ±99.44liters with coefficient variations 74%. In year 2009 the mean milk yield is 949.91 ±101.84 with coefficient variations 81.4%. The mean lactation length of all cows was 166 ±7.71days, with a coefficient variation 52.2%. For year 2007 it was 166 ±13.19days of lactation length with coefficient variations 32.8%. In year 2008 the mean lactation length is 165 ±12.57days with 54.4% coefficient variations. In year 2009 the mean lactation length is 167 ±12.13days with 55.3% coefficient variations. The milk production and lactation days based on year are shown in table 4.1.1(a) and fig 4.1.1(a). The analysis of variance on milk yield based on nutrient value of year has no significant different effect (P1.66). Nutrient value may effect on milk yield (liters), in nutrient value based on year one the NFE amount around 43-38%, for year two the amount of NFE is around 52-49% and third year the amount of NFE in range 48-52%. The requirement of nitrogen free extracts (NFE) not enough for supporting milk production as recommended value is 63.4% NFE. In year 2007-2008 the amount of total digestible nutrient (TDN) is in rage 56-68% only and it not enough for supporting milk production as recommended amount 72.8%. In year 2007-2009 value of metabolisms energy is sufficient for supporting milk yield because the recommended amount of metabolism energy in ration must be 11.10%. 4.1.2 Production Capacity Based on Parity, Lactation Stage, Dry Period, and Calving Interval. Number of 30 heads milking cow have been observed on the means milk yield (liters) of cows in parities one is 1219.51 ±126.17 with coefficient variance 56.7% and means value for second parities is 1403.22 ±101.02 with 26.9% of coefficient variance in fourteen cows been milking. The third parities for means value of milk yield is 1153.74 ±162.08 liters with 34.4% with six heads milking cows. Analysis of variance (ANOVA) on factor effecting milk yield on parity one, parity two and parity three are significantly different (P Lactation stage are divided to three sub classes, the sub classes are lactation stage one considering as early lactation for 14-100days, second lactation stage is a mid lactation in range of 100-200days and third lactation stage with range of days 200-305days. The mean value for lactation stage one is 160 ± 251.29 with coefficient variance 14.4%. In second lactation stage the mean value is 777.10 ± 92.04 with coefficient variance 45.87%. The third lactation stage the men value is 1550.80 ± 77.91 with coefficient variance 28.86%. The analysis of variance (ANOVA) is lactation stage one, two and three have significantly (P Mean value in first dry period is 2266.42 ± 221.66 with coefficient variance 19.56% and second dry period on mean value 1362.10 ± 163.19 with coefficient variance 23.96%. The last, third dry period on mean value is 1158.10 ± 81.58 with coefficient variance 45.65%. The number one, two and three is representing on 1 for 0 to 40days, 2 for 40 to 70days and 3 for above 70days dry period. The analysis of variance (ANOVA) in dry period are significantly (P The mean value for calving interval on zero is 1229.70 ± 130.17 with 57% and second calving interval the mean value is 1605.20 ± 76.88 with coefficient variance 6.8%. The third calving interval is 1300.30 ± 129.46 of mean value and 29.86% of coefficient variance. The calving interval in one and three have not significantly (P Relating all factor effect on milk yield from analysis of variance they are significant between lactation stage and dry period (P CHAPTER 5: CONCLUSION After al