Sunday, January 26, 2020
Disadvantages Of Using Thermodynamics
Disadvantages Of Using Thermodynamics Please find my enclosed my report entitled :What kind of things that related with thermodynamics field can contribute our daily life. I trust you will find the report has covered the question in a comprehensive fashion. Should there be any questions regarding this report, please do not hesitate to contact me at the address. I will also include my email address, so that initial contact can be made and further arrangements made should that be necessary. The research report will describe that what is thermodynamics? What are the advantage of thermodynamics? How thermodynamics will make our life easy? The research report will show different branches of thermodynamics and how it works. The report will also highlight some histories of thermodynamics .On the other hand, there are some analysis and facts relating with our daily life easier and more efficient. Justification The main reason for choosing this report is because Im interested in the thermodynamics, which is our daily exposure. I also want to specify my study in thermodynamics, which is major branch of my study which in mechanical engineering. Nowadays, thermodynamics technology are using everywhere and they make our life more convenient. So, I want to do research how thermodynamics works and how they contribute to our daily life. 1.0 Introduction Boiling water is hot. Ice is cold. The diversity between hot and cold is detected naturally ability to sense heat and its opposite. We measure heat with a thermometer and we assign it a temperature. Dictionary definition of hot and cold relate those sensation to our normal body temperature. Warm things have temperatures above our body temperature, and cold things have temperatures below our body temperature. In this way, humans are able to compare the temperatures of things and get a subjective sense of hotness or coldness. In one sense heat is a sensation in the mind. But we know that some physical process is causing our nerves to be stimulated in this way. What is happening in nature that causes us to feel these sensation of hot and cold? It isnt only human beings who respond to heat flow and changes in temperature. Heat affects all material objects and the environment as well. Temperature determines whether most substances exist in a solid. Liquid. Or gaseous state, Heating and cooling, if it changes the temperature of a substance enough, can change the state of matter. SO basic is the phenomenon of temperature that physicist consider it a fundamental property of matter. Along with volume mass, electric charge, and time. The word thermodynamics consist of thermo, meaning heat, and dynamics, which refers to movement or change. In this broadest sense, thermodynamics is about heat and how heat moves and changes. The fact that heat move at all was itself a discovery of considerable importance. Its not at all obvious. You light a campfire and it warms you. It has heat. The fire goes out, and heat seems to disappear. Common experience will not tell you that none of that heat has really disappeared. Heat is a form of energy and energy can b neither created nor destroyed. That, as you will learn, is one of the most important of the laws of thermodynamics. Thermodynamics is really all about the study of thermal energy and how it behaves. Over time, Scientists and engineers learned that heat energy is related to work. The classic example is the steam engine, in which heat energy is used to boil water, creating steam to push a piston attached to a rotary shaft. The shaft can then be used to turn a train wheels or a ships propeller of the machines in a factory. In this process heat energy is converted into a mechanical energy, Understanding what heat and temperature are and how energy is transformed into different forms in essential to understanding the modern industrial world and how we get thing done. As we shall see, much of our theoretical understanding of thermodynamics did not come about until people could examine the functioning of real machines like the steam engine. 2.0 History of thermodynamics The ancient Greeks believe that the world is built up of four basic elements: water, air, earth, and fire. However they did not understand the true nature of heat, the ancient Greeks learned to use it to operate simple mechanical devices. Little is known of the life of Hero of Alexandria. He wrote treatises on working with the simple machines, like the lever, the pulley, the wedge, the wheel, the gear, and the screw. He described a primitive steam engine called an aeolipile. It consisted of a reservoir of boiling water connected by a tube to a large, hollow sphere with open, bent tubes coming out of it. The sphere was attached to a gimbal so that it could rotate. Heated steam entering the hollow sphere caused it to spin as it blew the steam out of the bent tubes. The aeolipile was the first device known to transform heat into ratery motion in effect, Heros device was the first steam turbine The history of thermodynamics started with G.Galilel(1597) who introduced the theory of temperature and he also invented one of the first thermometers. It was G. Black (1770) who was the first to use the term Thermodynamics. In 1772 G. Wilke introduced the unit of measuring the a mount of heat a Calorie. It was W. Tompson (1859) who introduced term thermodynamics into conventional use. In the 20th century, thermodynamics became a basic independent division of Theoretical Physics dealing with the study of general properties of physical systems under equilibrium, as well as common regularities taking place with attaining equilibrium. Thermodynamics is divided into phenomenological and statistical thermodynamics 3.0What is thermodynamics? Thermodynamics is a division of natural science related with heat, energy and work it defines macroscopic variables that show material and radiation and explains how they are related and by what law. Thermodynamics shows the average behavior of , large numbers of small divisions. 3.1Braches of thermodynamics 3.1.1 Classical Thermodynamics Classical thermodynamics shows the changes of thermodynamic in terms, either of their time-balanced equilibrium states, or else of their continually repeated like clockwork processes, but, formally, not both in the same account. It uses only time-balanced, or equilibrium, small quantities that can measure in the laboratory, counting as time-consistence a long-term time-average of a quantity, such as a flow, achieved by a continuously repetitive process. Classical thermodynamics does not accept change over time as a central circumstance in its account of processes. An equilibrium state stands constantly without change over time, while a continuously repeated cyclic process runs repeatedly without change over time. In the classical field closely and purely in terms of cyclic action, the best internal of the working body of a cyclic process is not considered; the working body thus does not have a characterized interior thermodynamic state of its own because no expectation is made that it should be in thermodynamic stability; only its inputs and outputs of energy as heat and work are considered. It is of course possible, and absolutely common, for the result in terms of equilibrium states of a system to show cycles composed of indefinitely many equilibrium states. 3.1.2 Statistical Thermodynamics Statistical Thermodynamics, also called statistical mechanics, appeared with the development of atomic and molecular approaches in the second half of the 19th century and early 20th century. It shows an explanation of classical thermodynamics. It considers the microscopic cooperation between individual particles and their combined motions, in terms of classical or of quantum mechanics. Its explanation is in terms of data that rest on the fact the system is built of several species of particles or collective motions, the branches of each species individually being in some sense all alike. 3.1.3Laws of Thermodynamics The laws of thermodynamics are different from others. Therere altogether four of them. Theyre arranged from zero to four. Not because they are arranged by discovery in order but because they are numbered some especially. The second law is different from others and therere no effect on others. It has different formulas. The first law describe the quantity of internal energy of a system, which was found from kinetic energy and from its potential energy which relates to its surroundings. The first law describe the transferring of heat between closed system as work. The second law include two theories which is known as temperature and entropy. Entropy shows the limit which is known as irreversibility from the beginning, on the work that can reach to an external system by thermodynamics process. The effects of temperature, which halfway showed by the zeroth law, which has quantities in the direction of energy flow as heat between two system in thermal connection and which is known as comm on sense of hot and cold 3.2.1.Zeroth Law If the object A is thermally equal with object B, and B is thermally equal with C. So, the object A is thermally equal with object C. This is more a matter of relationship than of physics. If they have the same temperature, the two objects are thermally equal. If object A and object B has the same temperature, and the object B and C have the same temperature, then both A object and B object have the same temperature. The most important thing in Zeroth Law is that, when a hot and cold object are place in contact together, the thermal energy will flow from hotter to the colder object until their thermal energy will remain equilibrium. 3.2.2.First Law Lets consider the first law as an isolated system. That means heat and energy can neither leave or enter the circle. Such system does not done any work. But we can imagine it with a certain energy inside it, namely U, which depends on the kinetic of the molecular system and also the systems temperature. The internal energy is the same with potential energy because it has a property that does not work. But it still has the potential to do work. The first law describes that the internal energy of the system increases if heat is added to a system. The first law can just show another way of the laws of conservation of energy. As heat and work are another form of energy, if they go outside of the system, it will affect the internal energy of the system 3.2.3.Second Law The Second law is popular for its formulation of entropy. Entropy is a technical term for talking about confusion which is found in the 19th century. The same theory let us know that heat energy automatically flow cold from hot and theyre not flowing in the opposite direction. This also remind us that if the ordered system can turn easily into disordered system, But disordered system cannot turn easily into the ordered system themselves easily. 3.2.4.Third Law The third law of thermodynamics states that if an object reaches the absolute zero absolute zero of temperature (-273C), its atoms will stop moving. 4.0How Thermodynamics Works? 4.0.1.Refrigerator The system of the refrigerator cycle is continuous. We will show the system of refrigerator which uses with pure ammonia which keep the refrigerator cool in the following example. Ammonia boils at -27 degrees F. Thats why the refrigerator can always keep cool. The compressor in refrigerator compresses the ammonia gas and they heats up as it reaches high pressure. At the back of the refrigerator, there are coils that make hot ammonia gas to take its heat. When it reaches high pressure, the ammonia gas become liquid as its pressure is high. The pressurized ammonia liquid let flow through the expansion valve. Theres a small hole within an expansion valve. One side of the hold let flow the high pressured ammonia liquid and other side let flow the low-pressure ammonia gas because the gas are sucked out of that side by compressor. The ammonia liquid boils as the boiling point is very low and it vaporizes. The gas temperature dropping to -27F and that makes the refrigerator cold inside. The cold ammonia gas sucked by the compressor and repeats the circle again and again. 4.0.2 Air Conditioner Therere some major parts of an air conditioner which freezes and cool the air in two directions: Indoors and outdoors: Evaporator, which works for the liquid refrigerant Condenser, which work for transferring heat Expansion valve, which make refrigerant into the evaporator Compressor, which pressurizes refrigerant For the cold side of an air conditioner, there is a fan which blows air over the freezed coil to cool down the air into the room and the evaporator. The compressor is in the hot side and also the condenser. Another fan is to release hot air coming off the compressed cool to the outdoors. Between those coils, theres an expansion valve which release into the evaporator the compressed liquid. If the liquid reaches into the evaporator, it experiences the pressure drop and change back into a gas. The compressor is a large device that pressurizes the refrigerant gas to turn back into a liquid, which is also known as electric pump. 4.0.3 Microwave Oven As it is a microwave oven, it simply uses microwave to warm up or cook food. Microwave is a kind of wave that stays between radio wave and infrared radiation. For the microwave system, the commonly used wave which has the frequency of about 2,450 megahertz. They have interesting effects. Water, fats and sugars absorbs such kind of waves. If theyre absorbed, they change them into atomic motion which transform into heat. These wave have another interesting effect too. They cannot be absorbed by most plastics or glass. 5.0Advantages of using Thermodynamics The devices as shown above each of them have Advantages. By using refrigerator we can keep perishable food, such as, vegetables and milk for much longer periods. Refrigerators also have a freezing part that will keep frozen foods and make ice to use in beverages By using Air Conditioner, its more comfortable and we can adjust the indoor temperature. In extreme heat, air- conditioning can be a life saver, improves the air quality and most air conditioner also reduce the humidity level, which helps both comfort. For Microwave oven, it can cook many food about 1/4th of the time necessary on a gas burner. It saves time in heating frozen foods. Food gets cooked uniformly. 6.0 Disadvantages of using Thermodynamics Thermodynamics not only have advantages but also have disadvantages. By using refrigerator it costs a lot of electricity to run. They are also environmentally unfriendly the refrigerator also contain refrigerant that can be damaging to the environment because of chlorofluorocarbon (CFC) content. This material is suspected to be the cause of reduction of earths ozone layer. When we frequently use the air conditioner, the air conditioning disease will occur. It is characterized by fatigue weakness, cough or fever and so on. Air conditioners energy consumption is considerable. It will consume a lot of energy. It also release CFC, which is environmentally unfriendly. Microwaves can cook food in very short period. Due to short period of cooking, food does not become brown unless the microwave has a browning unit. Sometimes unwanted chemicals migrate to food from plastic cook ware or food packages. The short cooking time may not give a chance of blending of flavours as in conventional methods. 7.0Recommendation As a result of the research carried out, it appears to be necessary to understand all the field of thermodynamics. Future technologies are requiring new materials with unusual effects that will either be prepared by high-temperature techniques. One of the important thing that can affect the pollution to the environment easily are the new devices. Equipment using volatile fluids that can harm to the stratosphere and destroy the ozone will have to be replaced. Devices that emit sulfur oxides will have to be modified to reduce sulfur emission to very low values. The ability of solar energy used devices will have to be improved and nuclear power plants will have to be designed to make less serious accidents. So that energy production by combustion to carbon dioxide is greatly reduced. 8.0 Conclusion The research report has taken information from various sources to understand what is thermodynamics; what are laws of thermodynamics; how they works; and how they make our life easier? It shows that thermodynamics used devices are very convenient to use. If there were no thermodynamics devices in this world it would be many difficulties to pass a day. By improving the uses and devices of thermodynamics, they can make our life more convenient and can reduce the environmental reduce the environmental side effects.
Saturday, January 18, 2020
An Example of Successful Change Essay
Introduction Why is Wal-Mart so Successful? Is it Good Strategy or Good Strategy Implementation? In 1962, when Sam Walton opened the first Wal-Mart store in Rogers, Arkansas, no one could have ever predicted the enormous success this small-town merchant would have. Sam Waltonââ¬â¢s talent for discount retailing not only made Wal-Mart the worldââ¬â¢s largest retailer, but also the worldââ¬â¢s number one retailer in sales. Sam Walton has made certain changes that help Wal-Mart to achieve its success today. His change techniques involve changing people, technology, and product. Indeed, Wal-Mart was named ââ¬Å"Retailer of the Decadeâ⬠by Discount Store News in 1989, and on several occasions has been included in Fortuneââ¬â¢s list of the ââ¬Å"10 most admired corporations.â⬠Changing People Wal-Mart is successful not only because it makes sound strategic management decisions, but also for its innovative implementation of those strategic decisions. In order to become a superstore, Wal-Mart decided to change the skill level of its workforce. Waltonââ¬â¢s greatest accomplishment was his ability to empower, enrich, and train his employees. He believed in listening to employees and challenging them to come up with ideas and suggestions to make the company better. At each of the Wal-Mart stores, signs are displayed which read, ââ¬Å"Our People Make the Difference.â⬠Associates regularly make suggestions for cutting costs through their ââ¬Å"Yes We Can Samâ⬠program. The sum of the savings generated by the associates actually paid for the construction of a new store in Texas. One of Wal-Martââ¬â¢s goals was to provide its employees with the appropriate tools to do their jobs efficiently. The technology was not used as a means of replacing existing employees, but to provide them with a means to succeed in the retail market (Thompson and Strickland 93). Changing Product Wal-Mart stores operate according to their ââ¬Å"Everyday Low Priceâ⬠philosophy. They provide customers access to quality goods, to make these goods available when and where customers want them, to develop a cost structure that enables competitive pricing, and to build and maintain a reputation for absolute trustworthiness (Evan, Shulman, and Stalk, 55). Through Sam Waltonââ¬â¢s ââ¬Å"Buy Americaâ⬠policy, Wal-Mart encourages its buyers and merchandise managers to stock stores with American-made products. In a 1993 annual report management stated the ââ¬Å"program demonstrates a long-standing Wal-Mart commitment to our customers that we will buy American-made products whenever we can if those products deliver the same quality and affordability as their foreign-made counterpartsâ⬠(Thompson & Strickland 68). With a variety of product and low cost, Wal-Mart has attracted more consumers. Changing Technology Wal-Mart has invested heavily in its unique cross-docking inventory system. Cross docking has enabled Wal-Mart to achieve economies of scale which reduces its costs of sales. With this system, goods are continuously delivered to stores within 48 hours and often without having to inventory them. Lower prices also eliminate the expense of frequent sales promotions and sales are more predictable. Cross docking gives the individual managers more control at the store level. A company owned transportation system also assists Wal-Mart in shipping goods from warehouse to store in less than 48 hours. This allows Wal-Mart to replenish the shelves 4 times faster than its competition. Wal-Mart owns the largest and most sophisticated computer system in the private sector. It uses a massively parallel processor computer system to track stock and movement which keeps it abreast of fast changes in the market (Daugherty 24). Information related to sales and inventory is disseminated via its advanced satellite communications system. Conclusion Sam Walton, a leader with an innovative vision, started his own company and made it into the leader in discount retailing that it is today. Through his savvy, and sometimes unusual, business practices, he and his associates led the company forward for thirty years. Today the company is still growing steadily. Wal-Mart executives continue to rely on many of the traditional goals and philosophies that Samââ¬â¢s legacy left behind, while simultaneously keeping one step ahead of the ever-changing technology and methods of todayââ¬â¢s fast-paced business environment. The future also looks bright for Wal-Mart, especially if it is able to continue its customer-driven culture, it should remain a retail industry leader well into the next century.
Friday, January 10, 2020
What Every Body Is Saying About Thesis Statement Argumentative Essay Is Dead Wrong and Why
What Every Body Is Saying About Thesis Statement Argumentative Essay Is Dead Wrong and Why The Number One Question You Must Ask for Thesis Statement Argumentative Essay Keep revising your own idea till you get original and intriguing claims which you are excited to write about. A thesis produces a particular statement to the reader what you are going to be attempting to argue. The type of thesis statement included in the paper determines the standard of the paper. For instance, you can create a thesis statement that's associated with health. What Is So Fascinating About Thesis Statement Argumentative Essay? Once you're done writing, it's important to get someone take another look at your paper so that you're able to ensure there aren't any mistakes or errors. Choose from popular topics that folks are passionate about. The actual folks highly praise our essay help site. Helping students with explaining the feeling of an issue to the audience is the way it works. Whenever so meone finishes reading your conclusion, they ought to have zero question about what your stance is on the matter. Your thesis summarizes the argument you're going to be making in your paper, so you wish to be sure that your point of view is crystal clear and debatable. You would like your audience to don't have any doubt about your point. Always, you must be clear to the point. Deciding upon a sort of claim or argument can help you keep your thesis from becoming too wide. You want to demonstrate the importance of a particular side of a situation. You first have to select a good topic with an argument, credible information to strengthen your viewpoint, a good stance on your side, and a superb counter-argument that will help you sound less biased. When the topic was decided, it is crucial to come up with an argument surrounding the exact same. Your thesis statement has become the most important sentence in your essay. If you would like your thesis to be classified as a thesis and not only a useless sentence, utilize an extremely precise tone and specific words. A thesis is a one or two sentence overview of the principal function of the paper. It can be included at the start of the paper. In order to supply an in-depth understanding about the argumentative essay, it is advisable to take a look at some of the greatest examples of argumentative essay. Therefore, it's logical that for each specific sort of essay you ought to use your very own corresponding thesis creator. The essay should have a little bit of structure, unlike a normal essay. Bear in mind an argument essay ought to be somewhat persuasive. Consequently, students may develop different thesis for unique themes to compose essays on hamlet. On the flip side, students who write very good thesis discover that it's effortless to write excellent papers. Thesis Statement Argumentative Essay Writing quality essays is the principal purpose of our services. It is suggested to look for the one which has a great reputation and offers high-quality papers at inexpensive prices. Now you're acquainted much closer with statement generators of various kinds. Ally you must do is to correctly submit your order instructions and produce the payment. Luckily, there are a number of basic rules you may follow to make sure your thesis statement is effective and interesting. At any time you start to compose an essay, the very first paragraph of your piece ought to be your thesis statement. Since you may see, there isn't any universal thesis statement formula as every kind of a writing assignment needs a different strategy. Still, there are a few basic guidelines to bear in mind when it has to do with an argumentative thesis statement. Your strongest point needs to be revealed in the last body paragraph. You should make your argument as clear and specific as possible. Thus in the instance of all thesis statements, valid arguments should be present to support the principal point of the essay.
Wednesday, January 1, 2020
The Catcher in the Rye and the Truman Show Essay - 1588 Words
J.D Salinger explores many ideas of identity in his book ââ¬ËThe Catcher in the Ryeââ¬â¢; these ideas include ego, expression, personality, environment and perception. The author uses many features such as first person narration to express these ideas of identity. Identity is a common theme in many works including ââ¬ËThe Truman Showââ¬â¢ directed by Peter Weir and poem ââ¬ËLife-Cycleââ¬â¢ written by Bruce Dawe. ââ¬ËThe Catcher in the Ryeââ¬â¢ is an emotional journey of 16 year old Holden Caulfield who is struggling to recognise his identity. Holdenââ¬â¢s journey begins at Pencey Prep, one of three schools he attended and was expelled from. Holden then narrates as through the events following his expulsion from Pencey Prep and his eagerness to avoid his parentââ¬â¢sâ⬠¦show more contentâ⬠¦For example, When Truman is driving to work, something that we, the audience, instantly recognised as a stage light fell from the sky, Truman, however accepted the radioââ¬â¢s explanation that it was part of an aeroplane in trouble, shredding parts. There are also various product placements throughout the show, that Truman himself even seems to find it unusual as when Meryl, his wife his describing a product, while looking directly into the camera Truman replies with ââ¬Å"who are you talking to?â⬠and when Truman attempts to find his way to Fiji he is never able to make it becau se there is always something in the way, this being so frequent does not strike Truman. Christof explains this saying ââ¬Å"We accept the reality of the world with which we are presented.â⬠Many of the cameras used in the movie are presented as they would if it was a legitimate TV show. Many scenes have blurred borders as if the camera is set in something, as the hidden cameras in the show would have been. An obvious example of these cameraââ¬â¢s is the one seen when Truman is getting into his car, his neighbour is holding a bin with a small camera coming out of the side this contributes to the audience perception that this is a realistic television program. Holden Caulfieldââ¬â¢s identity has been moulded by his environment, how he was raised the people he has met and the family he comes from. Holden comes from a family with four children and two wealthy parents who had built an image ofShow MoreRelatedThe Cinematic Features Displayed in Pleasantville and The Truman Show1733 Words à |à 7 PagesThe Cinematic Features Displayed in Pleasantville and The Truman Show The following essay, which I have composed, is based on two important films of the last decade. Their titles are Pleasantville and The Truman Show. Starting with the Pleasantville, the general overview of the films plot gets more complicated the further you get into it. It brings up several issues all of which I have commented on in this essay. The film starts with two teenagers, David and JenniferRead MoreBelonging Essay4112 Words à |à 17 PagesPrichard, Katherine Coonardoo AF Rhys, Jean The wide Sargasso sea AF Rosoff, Meg Just in case YA Rosoff, Meg What I was YA Rushdie, Salman The satanic verses AF Sachar, Louis Holes JF http://www.louissachar.com/HolesBook.htm Salinger, J. D. The catcher in the rye AF YA http://en.wikipedia.org/wiki/The_Catcher_in_the_Rye Sartre, Jean Paul Nausea AF Sebold, Alice The lovely bones AF http://en.wikipedia.org/wiki/The_Lovely_Bones Shields, Carol Unless AF Shriver, Lionel We need to talk about Kevin AF http://www
Tuesday, December 24, 2019
The Legal Drinking Age Should Be During The United States
In recent years, debate about what the legal drinking age should be in the United States has been ubiquitous. People of all ages advocate both for and against lowering the age, and some people do not even have an opinion. What has led people to their specific convictions, and what facts do they possess that support these convictions? In the following paragraphs, this popular controversy will be addressed as each position is thoroughly analyzed. Many people today advocate for the drinking age to remain where it is, such as MADD (Mothers Against Drunk Driving) and the president of the American Public Health Association. MADD has been very active in recent years, whether it be through lobbying or mass media appeals. They often use scientific evidence, statistics, and their emotional appeal as mothers of dead children to coerce their audiences into believing that drunk driving and the drinking age correlate. For example, ââ¬Å"Since the 21 law was widely enacted, the number of young peo ple killed annually in crashes involving drunk drivers under 21 has been cut in half, from more than 5,000 individuals in the early 1980s to around 2,000 in 2005â⬠(Dean-Mooney). Using solid numerical evidence boosts their appeal to logos, not to mention that these statistics are very easily decipherable. It is obvious to any reader that, according to this passage, a higher drinking age leads to less fatalities. The author of the piece mentioned here is also the national president of MADD, whichShow MoreRelatedChanging the Minimun Legal Drinking Age in the United States1745 Words à |à 7 PagesChanging the Minimum Legal Drinking Age in the United States Over the past twenty years the minimum legal drinking age has been twenty-one in all US states, but that has not stopped citizens of the United Sates from attempting to lower the age. Following the end of prohibition in the United Sates during the Great Depression, all states agreed on a set of twenty-one to be the legal drinking age. For almost forty years there was no change in the drinking age until a decrease in the age for voting occurredRead MoreMinimum Legal Drinking Age Should Be Lowered1253 Words à |à 6 Pages Minimum Legal Drinking Age Should the drinking age be lowered from 21 to a younger age? Ever since the end of prohibition in 1933 the United States government has placed the issue of minimum legal drinking age sensitively in the hands of the states, letting each decide for itself what the minimum age should be. At that time all agreed that the minimum legal drinking age should be 21, where it remained for all states until 1970.Between 1970Read MoreThe Legal Drinking Age On America s Youth1749 Words à |à 7 Pagesthe legal drinking age was changed to twenty-one years of age. This change was made after the Prohibition. Studies during this time found that as the minimum legal drink age (MLDA) was lowered, there was an increase in youth traffic accidents. A study done after the legal drinking age was raised to twenty-one showed reduced youth drinking, youth drunk-driving, and accidents related to alcohol. The change of the minimum legal drinking age proved to be beneficial during this time period. During ourRead MoreThe Legal Drinking Age Should Be Lowered From The Age Of 21 Essay980 Words à |à 4 Pageseven make their own decisions? The drinking age on alcohol is a controversial social and cultural issue in todayââ¬â¢s society; all fifty states have a minimum drinking age of 21. The legal drinking age should be lowered from the age of 21 to 18 allowing young adults to be granted the right to drink in restaurants, bars, at social events, in the comfort of their own home, and so on. 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Approximately 2 out of every 3 high school students have drank to the point of getting intoxicated (binge drink), in more than one occasion (Centers for Disease and Control Prevention [CDC], n.d.). Binge drinking has become increasingly common for youth under the minimum legal drinking age, making it increasingly dangerous because of the lack of supervision that young adults have that can consequently, lead to death because of fear of the law (Bonnie Oââ¬â¢ConnellRead MoreDrinking Age Drinking847 Words à |à 4 Pages There has been an ongoing discussion in the United States on whether the drinking age should be lowered to eighteen like most of the world or if it should stay at twenty-one. Underage drinking has been a major questionable issue for years, yet why is it not under control? Teenagers are continuing to buy alcohol with fake identification cards, getting into bars and drinking illegally. As a recent teen, I have proof that these things are going on not only in college but in high school as well. ThereRead MorePersuasive Essay On Underage Drinking1291 Words à |à 6 PagesUnderage drinking is one of the largest problems that we have in the United States. This is a problem because alcohol is an item that nobody under twenty-one years of age is allowed to purchase or consume. People who are underage are punished by law when they consume or attempt to purchase alcohol illegally. This makes people under twenty-one want alcohol even more. In other countries where the drinking age is lower, there are less problems because it gives parents the push to teach their childrenRead MoreWe Can Fight in a War, but Cant Have a Drink?877 Words à |à 4 Pagesventure off from home on their own during college, but they finally get to make their own decisions without having to wait for the approval from a parent. Yes, high school was very fun, but for some reason it just canââ¬â¢t be compared to college life. What else could possibly be the blame for this other than the parties? College parties are very outgoing, but they also create a demographic for college students under the age of twenty-one. The legal drinking age should be changed from twenty-one to eighteenRead MoreIs it Right to Lower the Drinking Age?1070 Words à |à 4 PagesAn abundance of people start to drink during young adulthood. In the last 30 days roughly 39% of high schoolers drank some amount of alcohol (CDC). Alcohol has been around for tens of thousands of years and itââ¬â¢s always been an underlying issue. My question is, ââ¬Å"Why should we lower the legal drinking ageâ⬠? Current proposals to lower the minimum legal drinking age to 18 would have some benefits like increasing revenue for bars and liquor stores. However the risks surpass the benefits. Many people
Monday, December 16, 2019
A Brief Account of The Destruction of The Indies Free Essays
Las Casas wrote about this massacre of the Amerindians committed by the Spaniards. In my opinion he only wrote about the massacre to help discredit the values of the Spaniard army, and their actions went against his moral views. Las Casas did not view the Amerindians as equals of the Spaniards. We will write a custom essay sample on A Brief Account of The Destruction of The Indies or any similar topic only for you Order Now Las Casas was a friar that was sent with a mission to convert the people of the new world. He arrives with the Spaniards to the islands of the Amerindians. He is having trouble trying to perform his mission, because the Spaniards are killing or enslaving the Amerindians. Las Casas brought attention about the massacre of the Amerindians to help bring doubt to the character of the Spaniards. Common actions of the Spaniards as described by Las Casas ââ¬Å"divided a man into twoâ⬠(17), ââ¬Å"snatched young babies from the motherââ¬â¢s breasts, and then dashed out the brains of those innocents against the rocksâ⬠(17) to show the acts that can only be committed by uncivilized men. Las Casas, wanted the king to become untrusting of the Spaniards, also mentions the possibility that all the gold was not making it back to the king ââ¬Å"naturally addicted to rob, thieve and steal; thus under pretext of serving the king, they dishonor God, and defraud his imperial majestyâ⬠(104). I feel this is the true agenda of Las Casas and the one of the reasons he brings up the massacre to the king. The other reason is he cannot keep these horrendous acts to himself. As a man of God, Las Casas is bound to speak against actions that offends his god. His moral objections were against the destruction of potential Christian societies and the slaughter of villages that did accept Christianity as their one true religion. Las Casas mentions the conversion ââ¬Å"reducing them to the knowledge of Christian faith they were received by the inhabitants of this kingdom, that survived the heat and rage of the Spanish crueltiesâ⬠(62-63) Las Casa did not view the Amerindians as fully human. He does acknowledge them as people, but in his mind people without the acceptance of his God are just not equal to them. This is shown throughout the book in passages according to Las Casas ââ¬Å"go and teach all nations that infidels, living peaceably and quite in their hereditary native country, should be imposed upon pain of confiscation of all their chattels, lands, liberty, wives, children, and death itself, without any precedent instruction to confess and acknowledgement of the true godâ⬠(32). This book was extremely detailed in the actions that took place when the Spaniards arrived in Hispaniola. It is such brutal open honesty of the horror that occurred. However, I feel that the author even though he tried to appear as a heartbroken man due to these injustices, did not truly care that these people were brutally slaughtered. He would have only truly cared if they were converted Christians that followed his own beliefs. How to cite A Brief Account of The Destruction of The Indies, Papers
Sunday, December 8, 2019
Citizen Science System Assemblages
Question: Dioscuss about citizen science, knowhow of the assemblage, the human and non-human actors and detriment of the actor network theory (ant) to deal with the intricacy? Answer: Introduction Computing can be seen as an assemblage in the present times in all walks of the present world. Citizen science is one such technology and when one investigates further into technologies that are actors of the citizen science, one can clearly understand the power it possesses to leverage the data that has been collected to analyse scientific data (Culturemachine.net, 2015). This evaluation of the technologies can be said to be functionalities that are related to each other as its final objective or goal is to support those activities. The inkling about assemblages helps us to understand the ways of negotiating different platforms of citizen science with the help of wide varieties of functionality, but still they will be able to similar sustenance kind of goals and aims (crowston, 2015). The concepts of build vs. shy are also introduced in this report as well as how different form of functionality for citizen science like science vs. support for the human actors as well as the web moti vators and satisfiers which results in successful project outcomes (Dwrl.utexas.edu, 2015). Citizen Science The word known as citizen science has been used to portray the associations in research which allows the non-scientific affiliates from the broad community who support in the scientific investigations. They are also sometimes referred to as the science of crowd-sourced (Dwrl.utexas.edu, 2015). The projects related to the citizen science also include for examples which the participants have asked in order to classify the photographs of galaxies which have been captured by the space telescopes which are a source of sighting data for the ornithological research, or the observation of the sunflower plants to be pollinated by the bees during varying times of a day (Laursen, 2010). Although their systematic extents of review and research questions differ extensively, these developments increasingly have a shared attitude to facts assortment for a huge numbers of entities are requested to present opinions or scrutinises via internet or mobile-oriented apparatus. The survey of the system assemblages of a multiple number of citizen science projects over a relative case study approach (Culturemachine.net, 2015). On behalf of for each case study, the assessment of the assemblage in relations of its general constitution, build vs. buy decision-making, and its impact on technical objectives, applicant deprivation, motivation, and indulgence. Knowhow Of The Assemblage More or less of the preliminary physiognomies of the examination in this description is the considerateness of the scientific progression of computers which has been allowed for the sustenance of the project of citizen science as an assemblage of miscellaneous roughly coupled systems which are rather singular systems (crowston, 2015). One can conclude from the approach of king towards computer technology scrutinization that is also known as the models of the web. The web models accept the computer system as the assemblage of various kinds of techniques, equipment's and applications that are known to be as the information processing competence (Knipp, 2015). The tactic has been distinguished from the models that have been created by the engineers or any discrete entity analysis, the main emphasis of which is the material managing and the apparatus magnitude and its proficiency (Dwrl.utexas.edu, 2015). The Human And Non-Human Actors In most of the citizen science projects there are a number of influential know-hows that are used to support a number of purposeful criteria, relatively arranging solitary, autonomous schemes, citizen science projects exist further to select as of numerous characteristics. Lone venture could select to embrace a web medium to maintain applicant association, whereas one more may interpret this function as redundant (Conover, 2015). Projects established by an unpaid helper, unskilled workforce possibly will be liable to the abilities of the helper, have more partial or not as much of consistent statistics assortment device. Since of this societal character of citizen science, several of the character that forms a citizen science assemblage take about consultation protagonist (Culturemachine.net, 2015). An opportunity improves communiqu among contributors and venture experts, subject folios deliver evidence or normalise drill, blogs as well as news influence out to contributors, and inte raction forms permit participants to report affiliates of the project team (Chen, 2010). Even data collection utilities give participants a standardized avenue for communicating the work they have completed. Because most individuals' first encounter with a citizen science project is through its online presence, the citizen science assemblage also has a crucial part to engage in inspiring contribution (Prestopnik and Crowston, 2012). Detriment Of The Actor Network Theory (Ant) To Deal With The Intricacy The use of ANT has proven to be useful to capture the actors that are involved in the development of citizen science assemblages for some motives. The first thing is to focus on the actor networks as the fundamental building block for the development of the citizen science website features. Sustaining descriptions are individuals whose non-appearance will reason a contributor to know-how discontent with a website though inspiring qualities are those which enhance inspirational worth to a website (prestopnik, 2015). The ANT expects Participants imagine websites to uphold a definite degree of the attribute, and ample diminution of that feature will trigger discontent. At the same time, the inspiration to practise and return to a website derives on or after a hypothetically diverse set of characteristics. Motivating features include reasoning consequences such as acquiring latest comprehension or abilities, the joy of investigating a site, the incidence of interactive program, intensity of contest, the proficiency to device collaboration, and the incidence of striking illustrations (Mitchell, 2000). The ANT helps in the facilitation of the formative assessments in order to study the game play of the multiple certainties while they recognize the consequences of the co-existence of the realities in the actor networks while challenging expectedness of the out-dated cumulative of the result fixated on the essential techniques (mcquillan, 2015). Contribution Of Ant In The Case Studies Case1: Galaxy Zoo Galaxy Zoo is one of the projects in the citizen science which utilises the aids of individuals in the scientific enquiry process through the help of online explanation about the millions of photographs which have been taken by the Hubble telescope or the Sloan digital sky survey and many more (Laursen, 2010). The galaxy zoo asks the individuals astronomers to find out various features of the galaxy like how many spiral arms are there or how elliptical or round their shape is. This detailed explanation along with the photographs will help to identify a more detailed visual about the universe. Galaxy Zoo is a project that falls under the Zooniverse project that had been developed by the Citizen Science Alliance (Dwrl.utexas.edu, 2015). The system assemblages of the Zooniverse are better integrated than most of the other citizen science efforts. They are rather built by them rather than taking support from the off shelf software. The designers of the Zooniverse spend a great deal of ti me on the process of designing and, therefore, the build decision is related directly to the support for science. The design of the galaxy zoo is usually based around the participants who interprets the assets so that the dedicated interface functionality is often essential to extant the participant with an asset and captures the resulting metadata (Knipp, 2015). This effective tactic to evolving a system assemblage permits developers to guide their time toward amplifying impelling functionalities that support methodical ambitions, while instantaneously guaranteeing that previously established and successful functionalities with a satisfier role are effectually reclaimed (crowston, 2015). Case 2: What's Invasive What's Invasive is also a citizen science developed project which was made by the Centre for Embedded Network Sensing (CENS) at the UCLA in order to collect information regarding the invasive types of plants, insects and animal species which are found in the various regions of the USA and the world (Conover, 2015). The associates in this project make use of their mobile devices for carrying out observations and submit the species that they are observing in some particular geographical location. They make use of mobile technology in their system assemblages that are very different from the other techniques that have been explored earlier (Citizen Scientist, 2010). The software or the applications in the mobile technology are more tightly integrated than most of the other web applications, and this makes it exclusive of the other system assemblages used (Chen, 2010). Conclusion The view about the system assemblage of the citizen projects clearly depicts the involvement of conventional computing devices being used as an assemblage. The citizen science projects suggest that rather than understanding the technological aspects of the instantaneous as well as seamlessly integrated units which makes them collections of better discrete functionalities which are assembled to work together in order to achieve those goals. The functionalities or the ANT inclusion in the specific decisions and the functionalities of the assemblage are determined by a number of factors like that of the resources in the projects, the practical concerns regarding the project as well as the desire to build or buy the support for science as well as participants or the motivation and the satisfaction of the participants. References Chen, Y. (2010). Citizen-Centric E-Government Services: Understanding Integrated Citizen Service Information Systems.Social Science Computer Review, 28(4), pp.427-442. Citizen Scientist. (2010).Science, 329(5993), pp.733-733. Conover, E. (2015). Reddit prompts citizen scientists to go dig up dirt.Science. crowston, k. (2015).Citizen science system assemblages: Understanding the technologies that support crowdsourced science | Kevin Crowston. [online] Crowston.syr.edu. Available at: https://crowston.syr.edu/node/426 [Accessed 14 Aug. 2015]. Knipp, D. (2015). Space Weather and Citizen Science.Space Weather, 13(2), pp.97-98. Laursen, L. (2010). Collaborating with Citizen Scientists.Science. mcquillan, d. (2015).What is Critical Citizen Science? (A Dialogue - Part 1) (with images) danmcquillan. [online] Storify. Available at: https://storify.com/danmcquillan/what-is-critical-citizen-science-a-dialogue [Accessed 14 Aug. 2015]. Mitchell, E. (2000). Re-Assemblage.Assemblage, (41), p.54. prestopnik, N. (2015).Citizen Sort. [online] Citizensort.org. Available at: https://www.citizensort.org/web.php?/research/researchpapers [Accessed 14 Aug. 2015]. Prestopnik, N. and Crowston, K. (2012). Citizen science system assemblages.Proceedings of the 2012 iConference on - iConference '12. Culturemachine.net, (2015). [online] Available at: https://culturemachine.net/index.php/cm/article/download/440/470 [Accessed 10 Aug. 2015]. Dwrl.utexas.edu, (2015).Describing Assemblages: Genre Sets, Systems, Repertoires, and Ecologies | Welcome to the DWRL. [online] Available at: https://www.dwrl.utexas.edu/content/describing-assemblages [Accessed 10 Aug. 2015].
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