Friday, August 21, 2020

BIO Essay Example | Topics and Well Written Essays - 250 words - 2

BIO - Essay Example Moreover, Barbara created speculations the concealment and articulation of hereditary data across ages. Walter Sutton incredibly added to the hypothesis of advancement. Sutton accepted that it was conceivable to apply the Mendelian laws of legacy to chromosomes at cell level of living associations (Lynch, Jay, and Derek 56). This prompted the production of Boveri-Sutton chromosome hypothesis. This hypothesis places that chromosomes are the transporters of hereditary materials. Walter Sutton, the advocate of this hypothesis, accepted that chromosomes are found in all separating cells and are transmitted from age to age, in this manner shaping the bases of legacy. Herman Muller focused on the investigation of physiological and hereditary effects of radiation. As indicated by Herman, radioactive aftermath beginning from atomic war and atomic testing represented an extraordinary hazard the hereditary make-up of living cells (Lynch, Jay, and Derek 11). Herman uncovered that there was a cross connection among's radiation and deadly changes, which were answerable for adjusting natural attributes in populaces. Corren’s essential spotlight was on plant science and hereditary qualities. He freely found the standards of heredity, which adds to development and common choice. Corren rehashed Mendel’s results including his law of free grouping and law of isolation. These are the essential laws utilized for getting regular

Sunday, July 12, 2020

Essay Topics For China

Essay Topics For ChinaThere are many different China essay topics that you can choose from. Depending on your age, gender, and specific interests you may be able to find a topic for your essay. If you are unsure what type of essay to write or how to write an essay, you should take some time to research China so that you will be prepared for the experience.One of the most popular topics is literature, because of the many great books published in China. You can find plenty of writing resources for writing an essay about literature. These resources include textbooks, as well as other reading materials that give details on certain characters and events that can be used in your essay.Some individuals may find the subject matter of writing essays about literature interesting, but they may not be comfortable writing essays in Chinese. This is a common dilemma, because they may not know how to write the essay without help. It is important that you select a resource that offers both interpret ation and academic writing help.You may also find that you want to write an essay about films and movies in China. A great way to get your work published in a foreign country is to have your essay translated into English. This is a very professional way to get published in a foreign country and it gives you international exposure.Foreign students and tourists had also chosen to write about China in the past. They can add a personal note to their essay by writing about their favorite things in China. With the rising popularity of Chinese movies, more people are writing essays about the movies they enjoy.When you are ready to write an essay about China, you should begin by doing research. Research includes finding a resource that offers interactive language practice, a list of writing tips and resources, and more. Your research should take you to China, but also should allow you to learn the language and see how the culture works.Focus on what interests you. Find a resource that provi des the basics and then goes into depth on a particular topic. Find a resource that gives you clear explanations of the different topics so that you can figure out what you should be covering. When you know what you need to cover it is easier to understand and it makes your essay easier to write.After you have written your essay, you should read it over carefully and edit it until it meets your needs. If you can not find the information you need on the resource you used then you should contact the author of the resource and ask them to make the information available. Your final draft should be accurate and should have a coherent flow to it.

Wednesday, May 20, 2020

Analysis of Production Management Principles Free Essay Example, 2500 words

There should be a scientific method of selecting an individual to do a certain kind of work. After the right person has been selected proper training and guidance should be provided to make his transition into the job easier. There should always be development programmes to enhance his skills while on the job. There should be a list of procedures laid down by the company commonly called QAP (Quality Assurance Procedures). These define the methods and the checklists to be followed while carrying out a certain procedure. The company should ensure that there is complete co-operation between the management and the employees when carrying out processes as per the QAP. The decision to take up the works that form the part of the project does not rest upon the workers. The onus of designating the share of work to each group considered competent enough to do the work rested upon the manager in charge of each section. The organizational theorists have used the principles laid down by Taylor a nd formulated certain guidelines on which Production Management for an organization works. We will write a custom essay sample on Analysis of Production Management Principles or any topic specifically for you Only $17.96 $11.86/page

Wednesday, May 6, 2020

Racial Profiling And Racial Incidents Essay - 1074 Words

Xavier is not the only school that has experienced racial incidents of white students in blackface. At Kansas State University, Paige Shoemaker and her friend posted a snapchat in blackface and captioned it with racial slurs. When the photo surfaced the internet and was made known to the administration, Paige Shoemaker was immediately expelled (â€Å"College Student Expelled over Racist Snapchat†). Similarly, The Washington Post writes on how the University of Oklahoma temporarily suspended a student who sent racial messages that included, images of people hanging from trees, racial slurs and a ‘daily lynching’ calendar to several black freshmen from the University of Pennsylvania (Svrluga). By expelling and suspending students who were involved in racial incidents, these universities show that they do not condone any forms of racism. Xavier should follow the footsteps of Kansas State University and the University of Oklahoma by expelling any student involved in r acial incidents. This will assure Xavier’s black and minority students that they are welcomed at Xavier. Expelling students will also act as a warning to other racist students. When other students see that severe punishment is implemented when it comes to racism in Xavier, other students will be less inclined to perform racist acts, hence creating a safe environment for all students. In addition, Xavier should specify a policy of expulsion in its student conduct book to inform students ahead of time that any racist actsShow MoreRelatedEssay on Racial Profiling1047 Words   |  5 PagesHypothesis/Outline Hypothesis: The events of September 11th has caused racial profiling, a practice that was vilified by many just months ago, to become a common and accepted practice used by the government, airline officials, police agencies, and the American public. Profiling has also become a necessary tool used to prevent further terrorist attacks on the United States. Map of the Territory: I. Racial profiling is the practice of selecting someone for investigation or stronger actionRead MoreRacial Profiling By Scott Johnson945 Words   |  4 Pages According to Scott Johnson, â€Å"racial profiling is the use of race or ethnicity as grounds for suspecting someone of having committed an offense† (Scott Johnson). The United States Supreme Court has ruled that racial profiling violates the constitutional requirement that all persons should be accorded equal protection of the law. However, is this requirement defensible in public policy? It has been proven in previous research studies that racial profiling, if applied correctly, can be a useful defensibleRead MorePersuasive Essay On Racial Profiling1488 Words   |  6 PagesRacial profiling existed back in the 18th century when black slaves were abused and oppressed by white men even those who didn’t own slaves. Throughout history, racial profiling still continues to be a controversial issue today. Itâ₠¬â„¢s practiced everyday. Racial profiling means using an individual’s race or ethnicity against them of committing a crime. This means oppressing other races to feel inferior and accusing others to a certain stereotype. Racial profiling is when a black person in ripped jeansRead MoreRacial Profiling And The United States1465 Words   |  6 PagesRacial Profiling Racial Profiling is just what it is. Targeting individuals for suspicion of a violation determined by the individual’s race, ethnicity, religion or national origin. Race and location are the supreme characteristics law enforcement visually examine when engaging in this type of profiling. African-American males are the primary victims of racial profiling in the United States. The phrase â€Å"driving while black† derive from African Americans protesting that they are pulled over by policeRead MoreRacial Profiling : Just Mercy By Bryan Stevenson Essay1333 Words   |  6 PagesRacial Profiling The justice system is one of the most important and critical parts of a government. Laws and regulations in our justice system guarantee our rights and safety. When law enforcement is segregated the safety of people among minorities are in the wrong hands. In the novel, â€Å"Just Mercy† by Bryan Stevenson, he scripts a similar situation where a man named Walter McMillian was a victim of racial profiling. Walter McMillian, an African American man, was convicted of murder of Ronda MorrisonRead MorePolice Brutality Racism1340 Words   |  6 Pagesopportunities have been presented to officials to speak up about this one huge problem in America, yet there is so much more that can be done to help better the racial tension between police and people of color. If the racial tension between law enforcement and people of color continues to grow in America it will continue to divide our nation because the racial conflicts the police have with other races will result in more riots and p rotest. Police brutality is classified as a way to make African AmericansRead MoreRacial Injustice And Profiling Within The United States1455 Words   |  6 PagesSlavery was just the beginning of when racial injustice and profiling all started. The colored people were discriminated against, mistreated, beaten, and sold to plantations across the southern part of the United States. There was once a time and place in the United States when African Americans were known as colored people and the rest were white. This was when segregation and slavery received national recognition for being wrong. Back in the 1960’s, this was a time period where everyone was notRead MoreAnalysis : The Rodney King Incident Essay935 Words   |  4 PagesThe Rodney King incident was presented as a case study of how failure to institutionalize some of the contextual themes concepts can result in malfeasance. Research incidents of other criminal justice malfeasance and, by using the five contextual themes as a guide, identify administrative concepts that could have prevented these situations. Racial profiling in law enforcement is the criminal justice malfeasance I chose it is safe, it is a hotbed topic and in law enforcement we are walking down aRead MoreRacial Profiling And The Law Enforcements1418 Words   |  6 PagesLiterature Review This paper outlines the studies, incidents, facts and statistics that have found evidence of racial profiling which causes distrust in the law enforcements (police, government etc0. Studies of racial profiling shows that blacks, Hispanics, Middle Eastern and other racial minorities are more likely to be stopped than those who are white. They are more likely to be stopped and searches, traffic stops, license and registration checks. In addition they are more likely to be ticketedRead MoreRace, Religion, Or Ethnical Background?1247 Words   |  5 Pagessomeone somewhere commits racial profiling in a way that might be harmful to others. Some of these individuals take it a step farther to prevent racial profiling from occurring as regularly, as in the case of Shoshana Hebshi. Racial profiling has been deemed unconstitutional yet it still occurs. I believe that racial profiling could be useful for society if used to educate people on their own racial misconceptions of other cultures an d it could allow them to see some of the racial misconceptions that others

Fresh Food vs Canned Food free essay sample

Fresh Foods versus Canned Foods Eating is an activity that we as humans do at least two times a day. We live in a world where the variety of food is immense, and we are responsible for what we eat. We decide what we are about to eat and how it will affect our bodies. However, each food differs from one to another. For example are the fresh food and the canned food. Fresh foods and canned foods are two kinds of different types of food that have their own benefits and disadvantages. The most notable difference between these two kinds of foods is their flavor. Fresh food have great flavor because they keep their natural conditions. Canned foods however, lack a lot of its flavor characteristic because there are some other chemical products added to the natural foods. Comparing both types of foods we can notice another difference. That is the health factor that affects our bodies. We will write a custom essay sample on Fresh Food vs Canned Food or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page While the fresh food keep their original freshness and flavor, canned foods lose some of the original fresh food nutrients when stored, and also it has chemical ingredient when consumed too much will become toxin in our bodies. Another difference between these two types of food is the cost. Canned foods are much more expensive than the fresh foods. In contrast to the cost, canned foods are easier to find, they also require less work to prepare than fresh food. As we can see there are three main differences between the fresh foods and the canned foods. However, the main reason we chose our foods lies on our personal choice, based on time each person has, the money and the importance we give to our nutrition and health. Therefore it is important that you consider your possibilities and choose the best type of food for your convenience and life style. Fresh Food vs Canned Food free essay sample We live in a world where the variety of food is immense, and we are responsible for what we eat. We decide what we are about to eat and how it will affect our bodies. However, each food differs from one to another. For example are the fresh food and the canned food. Fresh foods and canned foods are two kinds of different types of food that have their own benefits and disadvantages. The most notable difference between these two kinds of foods is their flavor. Fresh food have great flavor because they keep their natural conditions. Canned foods however, lack a lot of its flavor characteristic because there are some other chemical products added to the natural foods. Comparing both types of foods we can notice another difference. That is the health factor that affects our bodies. While the fresh food keep their original freshness and flavor, canned foods lose some of the original fresh food nutrients when stored, and also it has chemical ingredient when consumed too much will become toxin in our bodies. We will write a custom essay sample on Fresh Food vs Canned Food or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Another difference between these two types of food is the cost. Canned foods are much more expensive than the fresh foods. In contrast to the cost, canned foods are easier to find, they also require less work to prepare than fresh food. As we can see there are three main differences between the fresh foods and the canned foods. However, the main reason we chose our foods lies on our personal choice, based on time each person has, the money and the importance we give to our nutrition and health. Therefore it is important that you consider your possibilities and choose the best type of food for your convenience and life style.

Thursday, April 23, 2020

Work Breakdown Structure Essay Example

Work Breakdown Structure Paper Chapman (2004) describes a Work Breakdown Structure (WBS) as a results-oriented family tree that captures all the work of a project in an organized way. The WBS therefore presents graphically the tasks in tabular as a hierarchical tree but it can also be a presented as task list in the form of a Gantt chart schedule. A simple example of WBS is shown in Appendix A. WBS as a planning tool In simple sense, the WBS could be used as a planning tool. Some projects could really be too big that could result to confusion if no planning is done. Imagine a contractor planning to build 1,000 houses with a month without a plan. How will he or she see to it that materials are available and delivered on time would be serious thing to consider. Add the fact that prices of materials could fluctuate in the market that could affect the contractor is sourcing the same materials in the light of cash flow requirements. To illustrate, it could not just be assumed that the materials will all be delivered at the construction site immediately as there could be problems as to storage and even security. One could be overwhelmed and confused if the amount of work and time is underestimated when it will turnout that it could be more. Mismanagement of projects normally comes from lack of planning and one who wants to comply in contracts could not afford not to have a plan. The nature of contracts with the use of WBS Contracts that are entered into between the parties create obligation between them. A typical construction contract for example that exist between the contractor (builder) and a contractee (owner the building) will cause the contractor to deliver the constructed according to specifications (Prager, J.1994) made by the contractee. We will write a custom essay sample on Work Breakdown Structure specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Work Breakdown Structure specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Work Breakdown Structure specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Under the contract, the contractor must finish the building or project for given period time, using require materials, employing the required skills from its workers and completing other requirements that would satisfy the provisions of the contracts. The contractee in return may promise to pay the contractor based on progress billing or upon completion. Under either scenario, the work break structure may be of use to both parties. How may the contractor may make use of the WBS? On the part of the contractor, he or she may makes use of the WBS to plan the project for the construction of the house. In the WBS, contractor may specify the activities or the works to be accomplished within the a give period, which could daily, weekly, monthly or even yearly for big projects involving numerous number of housing units. With the WBS, which may be in form of a tree or Gantt chart, the corresponding cost and amount of materials may also be identified and plotted as guide by the contractor to see how he is or she is progressing in his or her work. Logically, the WBS could therefore serve as planning tool where the contractor could put down all the necessary activities that must be finished under given deadlines. In the case of progress billing type of contracts, the contractor can then use the WBS or the Gantt chart to document the extent of completion for purposes of billing the contractee. In the WBS, the contractor also binds himself or herself to do certain activities ahead of other, hence this could be used by the contractor to explain possible delay in finishing the contracts. A typical example is the delivery of materials beyond the control of the contractor. If the delay of the delivery was beyond the fault of the contractor, then the delay could be blamed on the said contractor, in which case the WBS could really a functional tool to justify delay so as to avoid damages. How may the contractee may make use of the WBS? On the part of the contractee, the WBS could be used to demand measurement of performance. As indicted earlier contract have deadlines, hence the contractee my charge some penalties for delay if such provisions were made part of the contract. On the basis of the WBS, the contractee may pay or may also refuse to pay in accordance with the contract. It could thus be said also that the WBS is the graphical representation of contract that was put in words and which was acknowledge in writing by the contracting parties. In so using the WBS, the contractee may check if the contractee is too fast that may tell something about the quality of project. Hence finishing ahead of time does not necessarily mean that the contractor is efficient. In construction contracts time could be very relevant in imposing standards. Cements need to dry well before other part of construction could continue and for some this may take time. Even in soil preparation good construction practice allow the passage of time to make it sure the materials need to be allowed some time to effective. This could be applicable also in the case of paints. The WBS could therefore guide the contractee in verifying that only the works to be done first should be done ahead to ensure quality of the project. In case of lack of fault of both contracting the parties, the WBS is desirable to have a contingency plan in order to prevent losses to both parties. In certain contracts however, time is of the essence that completion on time could be of paramount importance. Conclusion We have seen that work breakdown structure has its use and purpose in contracts. From the were discussed, it could thus be said that the WBS is a requirement for contract as a planning tool, as an evaluation tool and even as a legal tool for both of the parties of the contract to measure and determine the compliance of their obligations to each other. Based on discussion, the view could be confirmed that WBS may be designed to try to achieve certain goals such as: (1) being compatible with how the work that will be done and how costs and schedules will be managed; (2) giving visibility to important or risky work efforts; (3) allowing mapping of requirements, plans, testing, and deliverables; (4) fostering clear ownership by managers and task leaders; and (5) providing data for performance measurement and historical databases (Chapman, 2004). Appendix A, Source: Chapman, J. (2004) References: Chapman, J. (2004) Introduction to the WBS, {www document} URL http://www. hyperthot. com/pm_wbs. htm, Accessed June 5,2007 Prager, J. (1994) Contracting out Government Services: Lessons from the Private Sector, Public Administration Review, Vol. 54, 1994

Tuesday, March 17, 2020

Week One Textbook Problems Essays - Business Economics, Economy

Week One Textbook Problems Essays - Business Economics, Economy Week One Textbook Problems Megan O'Brien ACC/400 06/02/2015 Neil Fischer BE16.9 - Star Repairs Co. does all the repair work for a medium-sized manufacturer of handheld computer games. The games are sent directly to Star, and after the games are repaired, Star bills the game manufacturer for cost plus a 20 percent markup. In the month of February, purchases of parts (replacement parts) by Star amounted to $97,000, the beginning inventory of parts was $38,500, and the ending inventory of parts was $15,250. Payments to repair technicians during the month of February totaled $52,500. Overhead incurred was $121,000. a. What was the cost of materials used for repair work during the month of February? 38,500+97,000-15,250= 120,250 b. What was the prime cost for February? 120,250+52,500=172,759 c. What was the conversion cost for February? 52,500+121,000=173,500 d. What was the total repair cost for February? 120,250+52,500+121,000=293,750 E16.1 - Listed below are eight technical accounting terms introduced or emphasized in this chapter: Accounting Terminology Work in Process Inventory Cost of finished goods manufactured Conversion costs Cost of Goods Sold Period costs Management accounting Product costs Manufacturing overhead Each of the following statements may (or may not) describe one of these technical terms. For each statement, indicate the accounting term described, or answer "None" if the statement does not correctly describe any of the terms. a. The preparation and use of accounting information designed to assist managers in planning and controlling the operations of a business. Management accounting b. All manufacturing costs other than direct materials used and direct labor. Manufacturing overhead c. Direct materials and direct labor used in manufacturing a product. None - Prime costs d. A manufacturing cost that can be traced conveniently and directly to manufactured units of product. none - direct manufacturing cost e. The account debited at the time that the Manufacturing Overhead account is credited. Work in process f. The amount transferred from the Work in Process Inventory account to the Finished Goods Inventory account. Inventory cost finished goods manufactured g. Costs that are debited directly to expense accounts when the costs are incurred. Period costs 3. E16.2 -Into which of the three elements of manufacturing cost would each of the following be classified? a. Tubing used in manufacturing bicycles. Direct materials b. Wages paid by an automobile manufacturer to employees who test-drive completed automobiles. Direct labor c. Property taxes on machinery. Manufacturing overhead d. Gold bullion used by a jewelry manufacturer. Direct materials e. Wages of assembly-line workers who package frozen food. Direct labor f. Salary of plant superintendent. Manufacturing overhead g. Electricity used in factory operations. Manufacturing overhead h. Salary of a nurse in a factory first-aid station. Direct Labor 4. E16.3 - Indicate whether each of the following should be considered a product cost or a period cost. If you identify the item as a product cost, also indicate whether it is a direct or an indirect cost. For example, the answer to item 0 is "indirect product cost." Begin with item a. 0. Property taxes on factory building. Period cost a. Cost of disposal of hazardous waste materials to a chemical plant. Product cost - indirect b. Amounts paid by a mobile home manufacturer to a subcontractor who installs plumbing in each mobile home. Product cost - direct c. Depreciation on sales showroom fixtures. Period cost d. Salaries of security guards in an administrative office building. Product cost - direct e. Salaries of factory security guards. Product cost - direct f. Salaries of office workers in the credit department. Product Cost - indirect g. Depreciation on the raw materials warehouse. Period Cost h. Income taxes on a profitable manufacturing company. Period Cost 5. E16.6 - The Ryde and Rowe Inc. had the following account balances as of January 1: Flow of Costs through Manufacturing Accounts LO16-3 through LO16-5 Direct Materials Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $ 89,200 Work in Process Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178,400 Finished Goods Inventory . . . . . . . . . . . . . . . . . . . . . . .

Sunday, March 1, 2020

History and Geography of Germany

History and Geography of Germany Population: 81,471,834 (July 2011 estimate)Capital: BerlinArea: 137,847 square miles (357,022 sq km)Coastline: 2,250 miles (3,621 km)Highest Point: Zugspitze at 9,721 feet (2,963 m)Lowest Point: Neuendorf bei Wilster at -11 feet (-3.5 m)Germany is a country located in Western and Central Europe. Its capital and largest city is Berlin but other large cities include Hamburg, Munich, Cologne and Frankfurt. Germany is one of the most populous countries of the European Union and it has one of the largest economies in Europe. It is known for its history, high standard of living and cultural heritage. History of Germany: Weimar Republic to Today According to the U.S. Department of State, in 1919 the Weimar Republic was formed as a democratic state but Germany gradually began to experience economic and social problems. By 1929 the government had lost much of its stability as the world entered a depression and the presence of dozens of political parties in Germanys government hampered its ability to create a unified system. By 1932 the National Socialist Party (Nazi Party) led by Adolf Hitler was growing in power and in 1933 the Weimar Republic was mostly gone. In 1934 President Paul von Hindenburg died and Hitler, who had been named Reich Chancellor in 1933, became Germanys leader.Once the Nazi Party took power in Germany nearly all democratic institutions in the country were abolished. In addition, Germanys Jewish peoples were jailed as were any members of opposing parties. Shortly thereafter the Nazis began a policy of genocide against the countrys Jewish population. This later became known as the Holocaust and around six m illion Jewish people in both Germany and other Nazi occupied areas were killed. In addition to the Holocaust, Nazi governmental policies and expansionist practices eventually led to World War II. This later destroyed Germanys political structure, economy and many of its cities.On May 8, 1945 Germany surrendered and the United States, United Kingdom, USSR and France took control under what was called Four Power Control. Initially Germany was to be controlled as a single unit, but eastern Germany soon became dominated by Soviet policies. In 1948 the USSR blockaded Berlin and by 1949 East and West Germany were created. West Germany, or the Federal Republic of Germany, followed principles set forth by the U.S. and U.K., while East Germany was controlled by the Soviet Union and its communist policies. As a result, there was severe political and social unrest in Germany throughout most of the mid-1900s and in the 1950s millions of East Germans fled to the west. In 1961 the Berlin Wall was constructed, officially dividing the two.By the 1980 pressure for political ref orm and German unification was growing and in 1989 the Berlin Wall fell and in 1990 the Four Power Control ended. As a result, Germany began to unify itself and on December 2, 1990 it held the first all German elections since 1933. Since the 1990s, Germany has continued to regain its political, economic and social stability and today it is known for having a high standard of living and a strong economy. Government of Germany Today Germanys government is considered a federal republic. It has an executive branch of government with a chief of state who is the countrys president and a head of government who is known as the chancellor. Germany also has a bicameral legislature made up of the Federal Council and the Federal Diet. Germanys judicial branch consists of the Federal Constitutional Court, the Federal Court of Justice and the Federal Administrative Court. The country is divided into 16 states for local administration. Economics and Land Use in Germany Germany has a very strong, modern economy that is considered the fifth largest in the world. In addition, according to the CIA World Factbook, it is one of the worlds most technologically advanced producers of iron, steel, coal cement and chemicals. Other industries in Germany include machinery production, motor vehicle manufacture, electronics, shipbuilding and textiles. Agriculture also plays a role in Germanys economy and the main products are potatoes, wheat, barley, sugar beets, cabbage, fruit, cattle pigs and dairy products. Geography and Climate of Germany Germany is located in Central Europe along the Baltic and North Seas. It also shares borders with nine different countries - some of which include France, the Netherlands, Switzerland and Belgium. Germany has a varied topography with lowlands in the north, the Bavarian Alps in the south and uplands in the central part of the country. The highest point in Germany is Zugspitze at 9,721 feet (2,963 m), while the lowest is Neuendorf bei Wilster at -11 feet (-3.5 m).The climate of Germany is considered temperate and marine. It has cool, wet winters and mild summers. The average January low temperature for Berlin, the capital of Germany, is 28.6ËšF (-1.9ËšC) and the average July high temperature the city is 74.7ËšF (23.7ËšC).To learn more about Germany, visit the Geography and Maps section on Germany on this website. Source:Central Intelligence Agency. (17 June 2011). CIA - The World Factbook - Germany. Retrieved from: https://www.cia.gov/library/publications/the-world-factbook/geos/gm.html ï » ¿Infoplease.com. (n.d.).Germany: History, Geography, Government, and Culture- Infoplease.com. Retrieved from: infoplease.com/ipa/A0107568.html United States Department of State. (10 November 2010). Germany. Retrieved from: state.gov/r/pa/ei/bgn/3997.htm Wikipedia.com. (20 June 2011). Germany - Wikipedia, the Free Encyclopedia. Retrieved from: http://en.wikipedia.org/wiki/Germany

Thursday, February 13, 2020

Energy Efficient Food System Essay Example | Topics and Well Written Essays - 750 words

Energy Efficient Food System - Essay Example Form this explanation; it is very clear that any food system is affected not only by environmental factors but by also social, political and economic factors play a major role. (Michael Webber, Scientific American: â€Å"How to Make Food System More Energy Efficient† Jan 2012) expresses this point by looking at: 1. How food-energy relationships are changing. 2. What ways of food production are over utilizing the available energy, how they do it? 3. Ways of improving the food-energy ratio. According to the article, there has been an increase in the demand for energy especially fossil fuels and diverse countries are trying to fight this demand but are overlooking the food system as a major user of energy. There are certain farming methods which eventually lead to more energy being used to utilize food than that which we get from that same food. Evidence shows that there is a 10.1 ratio of energy input to food output and more energy is used to preserve and prepare food due to the use of more machinery like tractors. The author expresses optimism in improving this ratio, for example, he suggests stopping using corn kernels for starch-based ethanol as this seems like a process of interfering with nature. Conversion of agricultural waste like manure into products of power is another way to curb entering into the energy-danger zone. This can also provide vital nutrients to livestock and make more food available to us, for instance feeding of livestock by algal biomass will enable there to be more corn as food for humans thus less energy used for food production. Drip irrigation are among other pilot methods that have been used successfully not to mention improving our behavior like reducing food wastage and dietary options of eating lesser portions of food will go a long way in improving the 10.1 ratio. The high population increase in the world means a greater demand for food and thus higher demand for energy to produce this food. Some areas which were seen as non-agricultural areas for instance great deserts, were improved so as to be agricultural but there is still high energy consumption through transportation and irrigation and this does not solve this problem. Such a situation is described in instances where more energy is used to make food than that given out by the same food. There are instances where plants only convert less than 2% of solar energy into stored energy which is consumed by animals which are then consumed by humans and is again stored as glycogen instead of being given out. After thorough review of past experiments done by experts, the author believes that there is still hope in improving the 10.1 ratio. From studying researches done, it is clear that if the Americans stop using corn kernels for starch-based ethanol, they will be able to produce up to 15 gallons of corn-based feed-stocks which can be used as feed for both livestock and humans. Other ways of doing this are through; Use of cellulose sources for energy instead of food-based sources Conversion of agricultural waste into power using anaerobic digesters Using carbon-dioxide from smokestacks at coal plants to grow algae for food. Implementing agricultural techniques which have been perfected in pilot diagrams will also reduce the 10.1 ratio. For example drip irrigation creates less water wastage than sprinkle irrigation, in states like Iowa, researchers say

Saturday, February 1, 2020

Work of Art History Essay Example | Topics and Well Written Essays - 750 words

Work of Art History - Essay Example At the same time he was developing his own style, Rodin was joined by Realists and Impressionists who brought new perspectives to painting, and thus public perception of art changed as well. In 1907, Rodin crafted The Hand of God, which he had modeled around 1896. The sculpture shows a single hand as its central subject, and it holds within it a raw stone. This stone also features the smooth figures of man and woman, who are being fashioned into organic forms from the rough material, showing God in the process of creation much as the sculptor goes through such a process. In analyzing this sculpture, it is first necessary to use one's eyes to see what it presents—the content, the subject matter, the forms and shapes. The sculpture, as mentioned, features a large, strong hand, set apart from the body so that the hand itself is the subject. The hand juts forth from a rough base, an uncut and unpolished piece of stone marble. Within the hand, we see a smaller version of the same c ontrast—there are two human bodies, intertwined, one man and one woman, and they are attached to a backdrop of raw marble with no deliberation alterations. Examining the sculpture from different angles reveals different contrasts, as one side shows only the fingers gripping the stone, while another angle would put the focus on the human figures within the stone and the hand. The texture of the human elements is smooth and curved, while the rest of the marble is straight, jagged, and not at all organic. The sculpture can be seen as divided into three parts—the largest part being the hand, the next mot important being the two human figures, and then the backdrop of uncut stone being the supplementary part. As a sculpture, color is not used, but form doubles its centrality by gaining a third dimension that is not quite present in any painting. The artist was able to create a center of a attention with ease by having the hand sit squarely in the center of its base and come upward, with the fingers slightly curled in order to create a cylindrical shape that also suggest motion. The lack of rigidity in the hand gives it a more lifelike appearance, just as the somewhat fetal and relaxed human forms of the man and woman give an impression that they are alive and movable, rather than striking any sort of pose that lacks life and flexibility. The artist also creates a contrast between the live and non live parts of the sculpture by having a deep groove between the body parts and the rough stone. In a way, there is a sort of trench, and this has the effect of making the body parts pop out from the stone, not specifically separated but still having a clear gap and change of depth. This is his way of establishing an aesthetic difference between the two elements, while the scale is used to develop a difference between the bodies and the hand. The texture of the body parts helps to create a beauty that is set apart from the stone as well, so the viewer clearly considers the difference between the two and realizes which is more attractive. The meaning of the sculpture is rather easy to interpret on the surface, but perhaps has deeper parts. Foremost, it shows symbolic process of creation of humanity by the more powerful and larger â€Å"hand of God†. The difference between textures shows that life comes from something raw, and God cleaves life out of what is lifeless. The lack of body for God shows that the hands are the focus, as the hand of God is the doing and creating part of him, the tools that he used to change earth into man. On top of this basic theme of creation by God from rough material into life and beauty, we also get a second meaning of creation—that of the artist or the sculptor. The symbolism about divinity is displayed in

Friday, January 24, 2020

Colonial Women Essay -- History Historical Colonies Gender Essays

Colonial Women Women did not have an easy life during the American Colonial period. Before a woman reached 25 years of age, she was expected to be married with at least one child. Most, if not all, domestic tasks were performed by women, and most domestic goods and food were prepared and created by women. Women performed these tasks without having any legal acknowledgment. Although women had to endure many hardships, their legal and personal lives were becoming less restricted, although the change was occurring at a snail’s pace. Life for the colonial woman was a mix of imprisonment and freedom in their marriages, homes, and in the American Colonial legal system. Women who chose to come to the American Colonies had a 100 percent chance of finding a husband. Men outnumbered women almost six to one. Any woman could be choosy when finding a husband, for countless men tried to woo her into marriage. Because women could choose their husbands, they could marry those men who would give her the most benefits. A woman did not have to marry a man who would treat her poorly. In most New England colonies, a woman could sue her husband for a divorce if he treated her without respect and abused or neglected her. Although women had the legal privilege to divorce a bad husband, she did not have any legal rights under the law. As soon as she married her husband, she lost all legal existence. For a woman to have any place in the legal system it was better to remain single. Single wom...

Thursday, January 16, 2020

Information Systems Management in Practice

Information system is perceived as tools to automate business processes for better performance and productivity. It is viewed as a machine which takes input, possesses processing logic and gives a defined output which is further used to process jobs. It was strictly viewed as a catalyst in bulk processing of tasks and also those that are very difficult for human resources to take care. Primarily the idea of information system was duly followed and businesses could use it often effectively for automating their business processes. Presently, the meaning of information system is quite different from traditional thinking.It is definitely used for automating tasks; however it is also used for mining of data for finding a new definition of information. The idea is to find the hidden meaning of information, intelligence in the information domain for an organization. The meaning of integration of various isolated business processes into a holistic integrated system is a new meaning of techno logy. The concept of information system is now exploited to bring out exceptional variants of fetching intelligence out of information and better and stronger connection of resources for better business advantage.The idea is to encourage better process development which would ensure right judgment of the business advantage. From the transition of simple systems to ERP and intelligent systems, information technology has taken a leap ahead in finding better solutions for business. The transition further would enhance better forms of use and seamlessly integrating with various latest handled devices for control and management of business processes. The combination of technology and communications would bind the technology closely with the needs of the organization and evolve to enable the organization for better prospects in future.The previous perceptions of information system have evolved with time and have become better to understand the organization and its needs. The information s ystem perception from automated behavioral nature to intelligent devices has come a long way to decide the future rule of information systems over every part of human life and work. References McNurlin B. C. and Sprague R. H. (2009). Information Systems Management in Practice (8th Ed). Prentice Hall.

Wednesday, January 8, 2020

Feminism The Main Branches Of Feminism - 1668 Words

The extent to which feminism is characterised more by disagreement then agreement is the debatable. The three main branches of feminism: Radical, Socialist and Liberal disagree on a number of issues such as the roots of patriarchy and the details of its solution. However on whole it can be seen that they still agree the 2 core themes of feminism of patriarchy existing and what to do about patriarchy. Patriarchy is the view that man has oppressed women depriving them of choice or freedom to such opportunities a man is able to recieve. This is a core theme of feminism and it is agreed upon by all feminists that patriarchy exists. However they maybe some disagreement on where patriarchy is rooted. Liberal feminists such as Betty Friedan†¦show more content†¦Women were thus seen as the proletariat. Radical feminists rooted patriarchy in terms of sex and psychological. They viewed men and women being socially conditioned to have specific specific traits the characterised their roles. Firestone mentioned that the biological fact of women giving birth was used against them and it was assumed that woman s nature was caring, nurturing. Overall it can be seen although there are significant disagreements in where patriarchy is rooted. It can be seen that the disagreements fundamentally may not matter as much as they all feminists agree on the core theme one patriarchy existing. Fur thermore the differences of the roots themselves actually help the development of patriarchy it is tackled across a spectrum of departments. Another central area of agreement for feminists is a view that sex and gender are two different concepts. Sex refers to the biological distinctions between men and women, for example women have the ability to give birth. Gender indicates socially conditioned male and female traits that are not inevitable and can vary between cultures. Gender stereotypes are conditioned by society from an early age through propaganda, tv or games, for example girls are encouragedShow MoreRelatedMoral Theories Can Help Justify The Decisions That Are Made882 Words   |  4 Pagesborrow elements from. Moral theories attempt to explain what it is that makes some actions right and others wrong. These are then used as a guide to making choices. They operate at a more general level than moral or legal principles and rules. The four main groups that one should be aware of are: Utilitarian, Kantian, Aristotelian and Feminist. Utilitarian Utilitarianism is based on maximizing human welfare, it is seen as the only way to determines the rightness of actions (Duignan, 2015). FurthermoreRead MoreFeminism And The Second Wave1448 Words   |  6 Pages â€Å"You cannot be a humanist unless you are a feminist. You either advocate equality for all or you are a misanthrope† (Michael A. Sherlock). From women’s suffrage to abortion laws feminism has evolved with contemporary battles and a variety of approaches. The â€Å"First wave† of feminism in 1920 advocated women’s suffrage, whereas the â€Å"Second wave† targets the societal issues that women in the 21st century are facing. Betty Friedan wrote The Feminists Mystique after World War II exposing female repressionRead MoreDoes Feminism Create Equality?1037 Words   |  5 PagesDoes Feminism Create Equality? Feminism is an umbrella term for people who think there is something wrong with the idea that gender has the capability to limit an individual’s social and political right. Even if there is inequality between men and women, feminism has never been the main reason to give women their civil rights. Feminism started among European activists in the 19th century, when women were not treated equally and were not elected to high positions of power. Indeed, it sought to eliminateRead MoreWomen s Equality For Women1407 Words   |  6 Pagesthey were women. Overtime feminism has expanded and diversified in many different aspects including approach and priorities. The changes in them are result of many different social economic groups of women because of the various goals set for methods of creating change, which are implemented within the movement. The feminist movement has been trying to give equal rights to women who have been destitute of their equality and privileges that man have never given them. Feminism is beneficial to men, womenRead MoreFeminist Political Ideology Essays1243 Words   |  5 Pagesjustice†(Besel 530 and 531). Feminism, as a complex movement with many different branches, has and will continue to be incredibly influential in changing lives. Feminist political ideology focuses on understanding and changing political philosophies for the betterment of women. Studying how the philosophies are constructed and what makes them unjust, this field constantly generates new ideas on how these philosophies need to be fundamentally reconstructed. Liberal feminism, for example, was builtRead MoreA Nutshell Solitary Word Is A Basic Human Right1430 Words   |  6 PagesFeminism in a nutshell solitary word is: equality- a basic human right that has been the basis of every social movement throughout history and history to come. In one way or another, every ethnicity, race, and gender has been oppressed in some form. All of the â€Å"-isms† have fought to shed light and bring about change to these â€Å"lesser† groups. Feminists are no exception. Feminism has many branches: radical feminism, cultural feminism, liberal feminism, anti-porn feminism, pro-sex feminism, third-waveRead MoreFeminism : A Feminist Perspectiv e1168 Words   |  5 Pagesinfluenced my intellectual journal through feminist theory. Feminism is a contentious topic with matters that pertain to contemporary feminism, including the following: reproductive rights; equal access to education and employment; marriage equality; violence against women; and the sex trade. While these are only a few of the issues faced by feminists, it is evident that feminism has great value in today’s society. My journey with feminism began in high school when a professor shared negative assumptionsRead MoreAnalysis Of The Book Kasi Jackson 822 Words   |  4 PagesKasi Jackson extends her research throughout many branches of feminist science studies. Although she mainly studies women and gender, she has also studied branches of science and technology throughout her career. Jackson s intent is to accurately represent animal-behavior without bias. She hopes to also counter feminist arguments which believe critiques will render scientists from using feminism as a tool within their research. She began studying the cichlid fish to determine how research throughoutRead More The Variety of Feminisms and their Contributions to Gender Equality by Judith Lorber1120 Words   |  5 Pagesare many branches of feministic theorems. As Judith Lorber wrote in her article, The Variety of Feminisms and their Contributions to Gender Equality feminist denominations arose from different views, making many contributions to improve women’s status. Lorber discusses the views of, â€Å"gender reform feminisms, gender resistant feminisms, and gender revolution feminisms†¦Ã¢â‚¬ (1) etcetera, all which have fought to improve women’s rights. Though there are many different aspects of viewing feminism, writerRead MoreFeminism Challenges Male Domination Of The Institutions Of Law And The State1574 Words   |  7 Pages2. Feminism challenges male domination of the institutions of law and the state. Discuss. Feminism is the firm belief in economic, social and political equality of the sexes. The controversy regarding the status of women ages back to the Ancient Greeks. Plato believed that If women are to have the same duties as men, they must have the same nurture and education?’. Plato sought to evaluate the true and unquestionable duty that women play in society and to abolish the perception that one sex is

Monday, December 30, 2019

Business Operation And Development Resource Management

Student: Tushar Dobariya Student ID (15693) Sub: Business operation and development –Human resource management (19022) Question 1:- Answer (A) †¢ The programs pioneers of business office will care for the procuring of business instructors with take an interest of the CEO. †¢ The IT program pioneer will attempt to contract a decent taught and very much experienced in IT educating industry. †¢ The program pioneers of plans and English dialect studies office will take care of the procuring of English dialect instructors and verify that as opposed to enlisting the diverse educator for distinctive module he can enlist maybe a couple for every one of the four modules with the cooperation of CEO. †¢ The showcasing office will take care of the advertising of the school. He/she will manage the advertising director in all the five unique nations. Too the notice of the school so that more understudies can be a piece of this school. This customized pioneer will likewise care for the visa issues of understudies too the redesigning with NZQA new approaches. †¢ The account office will care for the money states of school, charges of understudies; pay of staff and in addition the advancement of it Answer (B). As seat momentum hierarchical structure of the association the school is managing five nations, yet because of the sudden downtown in understudy s number the school need to plan new association structure. as given 70% of the understudies are enlisted from India andShow MoreRelatedBusiness Operation And Development : Resource Management4040 Words   |  17 Pages Student: Tushar Dobariya Sub: Business operation and development –Human resource management (19022) Question 1:- Answer (A) †¢ The programs pioneers of business office will care for the procuring of business instructors with take an interest of the CEO. †¢ The IT program pioneer will attempt to contract a decent taught and very much experienced in IT educating industry. †¢ The program pioneers of plans and English dialect studies office will take care of the procuring of EnglishRead MoreBusiness Operations And Development Human Resource Management Essay2049 Words   |  9 Pages BUSINESS OPERATIONS AND DEVELOPMENT HUMAN RESOURCE MANAGEMENT July 11 2015 MANAGE HUMAN RESOURCE AS A MANAGER IN A BUSINESS OPERATION. Unit standard 19022 LEVEL - 6 Version - 3 Credits - 12 Submitted by - Ramanpreet Singh Student ID - ND 15402 Outcome 1: Establish human resource requirements for a business operation a) Taking into account the sudden drop in students from one of NZAB main markets India, provideRead MoreBusiness Operation And Development : Human Resource Management Essay4152 Words   |  17 Pages Unit Standard 19022 Business Operation and Development – Human Resource Management Jitender Singh Level 6, Credit – 12. â€Æ' Outcome 1: Establish human resource requirements for a business operation. a) Taking into account the sudden drop in students from one of the NZAB main markets in India provide an outline for the most favorable or desirable organization structure for NZAB new current situation. The new organization structure should be outline in term of the functions and the activityRead MoreBusiness Operation And Development : Human Resource Management Essay4290 Words   |  18 Pages Student: Tushar Dobariya Student ID (15693) Sub: Business operation and development Human resource management (19022) Question 1:- Answer (A) †¢ The IT program leader should be qualified and well educated as well as well experienced in IT industry. He/ she know basic things of work related to IT such as ZAVA, LINUX, and MICROSOFT. †¢ The program leader of plans and English dialect studies office will take care of English. Follow the instructors and verify that as opposed toRead MoreHuman Resources Management Principles For A Profitable Professional Service Organizations865 Words   |  4 Pagesuse management principles to maximize profitability. The importance of management principles include; â€Å"improves understanding, direction for training of manager, role of management and guide to research in management† (MSG Management Study Guide., 2015). In this paper we will discuss the difference between; human resources management principles compared to operations management principles and project management principles compared to operations management principles. Each of these management principlesRead MoreEnterprise Resource Planning ( Erp )1539 Words   |  7 PagesIntroduction Today Enterprise Resource Planning (ERP) is extensively adopted by many organizations regardless of kind and size, mainly because it provides enterprise wide view of information across all their business operations and help organizations achieve consistency across all their functional departments. The potential benefits of ERP system implementation include improved coordination across functional areas, increased efficiency, reduced operational costs, rapid access to information forRead MoreInformation Technology ( It ) Is A Universal And Versatile Tool1646 Words   |  7 Pageswould lose my way. In addition, I can order pizza or anything else in the internet. In business, we cannot without it. We used for information-based system, intranet, and paperless system at work. We need a financial management system to deal with the financial things, and Decision Support System can help and support the decision and strategy. Along with IT developingï ¼Å'it is more and more important in business. It can strengthen enterprise competitiveness and promote enterprise reform. In the pastRead MoreTEN OPERATION MANAGEMENT DECISIONS1005 Words   |  5 Pagesï » ¿Definitions of Operations management Operations management  refers to the administration of business practices to create the highest level of efficiency possible within an organization.  Operations management  is concerned with converting materials and labor into goods and services as efficiently as possible to maximize the profit of an organization. Operations management  is an area of  management  concerned with overseeing, designing, and controlling the process of  production  and redesigning  business operations  inRead MorePlanning for Long-Term Success of a Business1051 Words   |  4 PagesSuccess For business enterprises and entrepreneurs, the first major challenge is usually that of developing and establishing a successful new venture. However, the ability of these entrepreneurs to establish a new venture is dependent on some basic necessary skills. These skills include the ability to identify a market need and the capability to develop a product and/or service that could satisfy the need. When the entrepreneurs successfully conduct these essential things, the business enterpriseRead MoreHuman Resorce Management vs. Operations Management vs.Preoject Management737 Words   |  3 PagesOrlandus Leonard Human Resources Management vs. Operational Management Kaplan University MT 435 Operations Management Human Resources Management and Operational Management are two very distinct managements that are strangely co-dependent of each other in my view. Operations Management is responsible for designing, operating and improving productive systems or in layman’s terms, systems for getting work done. Operations Managers are found in all walks of life. In anything you basically do

Sunday, December 22, 2019

If Music Be The Food Of Love - 1931 Words

One of Shakespeare’s most famous quotes is: â€Å"If music be the food of love, play on.† Music has indeed been the source of many an inspirational quote, with many likening it to a universal language. And like all languages, it has evolved over time. But it’s more than jazz, rock and roll, the blues or gospel, to name a few relatively recent genres. It has a rich history that some regard as being rooted if not in religion, certainly in spirituality. Indeed, many deep thinkers have written essays on its therapeutic and mood-altering qualities. Perhaps Norman Greenbaum’s classic and memorable1969 hit, â€Å"Spirit in the Sky† captured it most notably. Studies of sound show us that music is all about frequencies and vibrations. Indeed, musical†¦show more content†¦It can also provide some relief to heart attack and stroke victims and patients undergoing surgery. Research suggests that music may promote the brain s ability to make new connections between nerve cells. Another idea is that it works its magic through its rhythms. Humans are rhythmic beings: Our heartbeat, breathing, and brain waves are all rhythmic. The human brain and nervous system are hard-wired to distinguish music from noise and to respond to rhythm and repetition, tones and tunes Ancient societies have used the power of musical rhythm to hypnotise, heal and induce states of higher consciousness for centuries - indeed the theory behind the repetitive, rhythmic entrainment of binaural beats works on the same principal. Scientific studies back up Dr Kamaroff s words, and music has shown music to be effective at reducing stress and pain. This study concluded that: Spontaneous live harp music significantly decreased patient perception of pain by 27% in a ICU setting. The reduction in patient s perception of pain supports the introduction of live harp music into the ICU as a non-invasive means to reduce patient pain. And this study showed that: Music listening impacted the psychobiological stress system. Listening to music prior to a standardized stressor predominantly affected the autonomic nervous system (in terms of a faster recovery), and to a lesser degree the endocrine and psychological stress response. What Are the SolfeggioShow MoreRelatedIf Music Be the Food of Love, Play on1089 Words   |  5 PagesIf Music be the Food of Love, Play on   Ã‚  Ã‚   Music is a moral law. It gives soul to the universe, wings to the mind, flight to the imagination; Music itself is a form of mood, it’s an explosive expression. Its something we are all touched by. No matter what culture were from, everyone loves music. As Bob Marley said â€Å"One good thing about music, when it hits you, you feel no pain.† There are certain times good and bad in my life that I can remember just by a song that might play. It’s that recollectionRead MoreA Brief Biography of David Dickau823 Words   |  3 PagesDavid Dickau David Dickau is a man whose true passion and love is music. Composing and Conducting music is what he truly loves. An Honored Conductor, Composer, and Clinician, He has Composed many Pieces such as the popular â€Å"If Music be the Food of Love†, â€Å"Dresden Canticles†, and â€Å"Stars I Shall Find†. Dickau was born in 1953 and now lives in Mankato, Minnesota, serving as the Director of Choral Activities at the Minnesota State University. He began his career there in 1991 and ever since hasRead MoreHard Rock Cafe Case Study1435 Words   |  6 PagesFlorida and has since then, expanded its location to more than 40 Cafà © and employee 75% of their employees throughout the United State. While serving more than 100,000 meals each day, Hard Rock Cafà © chefs are adapting to the change of new taste and music as they continue to gain 45 plus years to their existence. The Hard Rock Cafà © introduced new menus and services, memorabilia, and strategies to create an environment and experience where everyone and anyone can share laughter and joy with their friendsRead MoreCultural Identity : The Way Things Are1332 Words   |  6 Pagesme, I do not know what that could be. Could it be the fact that I am African American and Japanese? Could maps help to represent my cultural identity b ecause they help me to visualize where I want to go, where my family is, and places we ve been? Music, family and friends, robotics, and travel also describe my cultural identity. What are The way things are for me? What is my cultural identity; are the questions I have to answer. While I contiuned to ponder these questions around my cultural IdentityRead MoreEssay on How Music Can Affect Our Lives678 Words   |  3 Pages  Ã¢â‚¬Å"If music be the food of love, play on; Give me excess of it, that, surfeiting, The appetite may sicken, and so die.† In William Shakespeare’s play ‘Twelfth Night’ Orsino uttered these lines after he was frustrated in his courtship of Countess Olivia. Perhaps Orsino believed that an excess of music might cure his obsession with love the way eating too much removes ones appetite for food. But he was wrong. An old adage says music is the food of soul. The more you listen to it, the more youRead MoreI Love Spanish Music Has Good Beats1134 Words   |  5 PagesHowever, the Hispanics brings culture to the community especially when it comes to music, events, schools, nonprofit organizations, small businesses and restaurants. As I walk around the environment, I can hear Spanish music playing at the neighbor’s house, even though I do not understand the language but it sounds nice. I love Spanish music because Spanish music has good beats. One of the good things about Spanish music is that it allows a non-Spanish speaker like myself to dance to beats without understandingRead More Meet A Listener : Gwen Graham1067 Words   |  5 Pagesand would sometimes have to rely on the help of others. Music became a bit part of Gwen’s life early on. She couldn’t read music but around the age of four she started playing the piano by ear. â€Å"When I started out I wasn’t very good but the more I listened and the more I played the better I got. â€Å" giggled Gwen. In addition to playing the piano Gwen also enjoys listening to various kinds of music. Her favorite types of music are Country Western, Gospel, and 50’s Rock Roll. â€Å"I likeRead MoreWilliam Shakespeare s Twelfth Night1502 Words   |  7 Pagesthe text of William Shakespeare s comedy, Twelfth Night, or What You Will, is Music. The first thing that playgoers hear at the beginning is music. This music is being played for a duke, a powerful lord residing over the setting of all the characters. He is surrounded by other lords and his attendant, Curio. The duke, Orsino, cannot help but comment: If music be the food of love, play on, Give me excess of it that, surfeiting, The appetite may sicken and soRead MoreSouth Korean Culture And Its People Have Influenced My Life948 Words   |  4 Pagesaspects of Korean culture have affected me greatly; those being Korean music, Korean language/food, and Korean people. South Korea is such an amazing country and almost everyone there is very hard-working and determined. They have shown me to care more about my personal future and strive to meet my goals by working harder with more motivation. The Korean culture has changed my perspective on life as well. To start off, Korean music is probably the most interesting thing that I have ever stumbled uponRead MoreNew Orleans: A Historic City849 Words   |  3 Pagespurple, green, and gold. They wear long beads caught from the beautiful floats. They sit on the ground throwing balls, playing music, having a picnic, and watching the crowds walk by between parades. Also, New Orleans has some great foods in their tradition. Some of them are called Gumbo, Jambalaya, Andouille, red beans and rice, and a lot more. They have delicious foods there. New Orleans is the birthplace of Jazz. In most of America, folks celebrate Christmas Day by getting up early, opening

Saturday, December 14, 2019

ROM and Strengthening Exercises as a Treatment Option Free Essays

There are multiple kinds of exercise that could be beneficial in treating acute whiplash. Literature shows exercises such as a McKenzie treatment, postural training exercise, endurance strengthening and motor control, eye fixation, isometric exercises, and resistive exercises. In reviewing the literature, these exercises were combined with other treatment strategies such as modalities or mobilization to get the most effective outcome. We will write a custom essay sample on ROM and Strengthening Exercises as a Treatment Option or any similar topic only for you Order Now Also, at this point although there is a large amount of research done on treatment of whiplash injury, the conclusions that are made from this literature conflict each other. However, there is a consensus that excessive treatment of whiplash associated disorder may be counterproductive in the acute stages of injury. (Cochrane review) The evidence does not support episodes of care that last longer than 6-8 weeks with any one or combination of noninvasive interventions. If the intervention that is being attempted at that time is unsuccessful, it is then recommended that a different intervention be attempted. (Cochrane review) Based on this information, if active ROM and strengthening exercises are to be used, the intensity and frequency should be monitored closely to avoid increased injury. In comparing the effectiveness of these exercises, many studies compared them to periods of â€Å"standard care†. Standard Care included rest, analgesia, and general advice on gradual mobilization after a short period of rest. McKenzie treatment is based on the principle of centralization of pain and the use of exercises to reduce the stress on the surrounding neck musculature. For acute WAD patient’s, the goal is to stretch and decrease the tightness of the cervical extensor muscles, which may be overly contracted in this patient population. A common exercise to accomplish this is the chin tuck, where the patient retracts their chin and repeats this activity for a given number of repetitions. In a study by McKinney et al, three groups of patients with WAD were placed in 3 treatment categories and compared by outcome measures. The treatment categories included a home mobilization group who were instructed in postural correction, analgesia, collar, muscle relaxation and mobilization exercises. The second group was a group who received outpatient physiotherapy, including; McKenzie treatment, heat, cold, diathermy, traction, Maitland mobilization, postural correction and home exercise. The final group compared in this study received standard care as defined above. (Seferiadis, European spine journal) All treatments were given over a period of 6 weeks for 24 visits, with the follow up visits at 2 weeks. Cochrane review- exercises for mechanical neck disorders) Patients who received outpatient physiotherapy, including McKenzie treatment demonstrated improved cervical ROM and pain intensity in comparison to the treatment group receiving standard care. However, there was no difference in effectiveness between the outpatient physiotherapy group and home mobilization group. In a second study by Rosenfeld et al, the standard treatment for WAD was compared to active intervention that included McKenzie treatment and active cervical ROM. The group receiving active intervention demonstrated the most benefit when treatment was provided within 96 hours of initial injury. This group also demonstrated lower pain intensity and amount of sick leave, as well as improved cervical ROM in comparison to the standard care group. These outcomes were maintained at a 6 month and 3 year follow up (Seferiadis, European spine journal). Based on this literature and the results of the studies, McKenzie exercises have shown to be beneficial in reducing pain in patients with WAD. Postural training exercises as defined by a systematic review by Drescher et al, includes any correction, exercise or advice with the aim of improving posture. (Drescher) Postural training would be important for patients with WAD to avoid further exacerbation of muscle injury or reinjury at a later date. This could further carry over to job related tasks, as many people spend their day working at a desk sitting for long periods of time. Postural exercises may help patients to be more aware of their posture and make self-corrections to avoid future injury throughout the workday. In the systematic review by Drescher (Reference 22), the study compared a group receiving postural exercises to a control group who were not receiving postural exercises. It was found that the group that completed postural exercises demonstrated decreased pain and increased cervical ROM. Another high quality study (references 17-19) within this review compared an intervention group receiving postural exercises to the control group. The postural exercise group showed significant reduction in pain at both the 6 onth and 3 year follow up, as well as a lower amount of sick days taken from work at the 3 year study. There was no significant different in cervical ROM improvement in these two groups. Initially the cost of this postural training was higher, however ended up being lower when taking into account the cost of sick-leave days, loss of productivity and other interventions. (Drescher) In a study by Schnabel et al, it was determined that active therapy including postural advice and exercise was superior to passive modalities such as massage and ultrasound. There is limited evidence on specific postural exercises which would best benefit this population, however there has been some proof that this is a beneficial treatment. Therefore, further research into specific exercises and training strategies may be warranted to determine the best options for patients with WAD. A common side effect of whiplash is dizziness, which can limit patient’s ability to perform quick head movements and functional activities such as looking over their shoulder while walking. This dizziness is something which has been addressed by eye fixation exercises in the literature. Eye fixation exercises may also be known as proprioceptive exercise and can include; target exercises with varying degrees of difficulty by changing input from other body systems, and vestibular ocular reflexes with either a target moving or the target moving in the opposite direction of the patient’s head with the patient’s eyes maintaining focus on the target at all times. Eye-fixation exercises are used to restore coordinated movement and proprioceptive movement, which will decrease the degree of dizziness in the patient with WAD. Individually these programs have not shown to be beneficial, however when combined with other therapy treatments there has been minimal to moderate benefit. Based on a Cochrane review of exercises for mechanical neck disorder, it was found that including eye-fixation exercises into a complete physical therapy program showed moderate evidence of benefit for pain and function for acute whiplash disorder. This is also supported in a study by Provinciali, where one group was treated with eye fixation exercises to treat dizziness, along with mobilization and additional neck exercises. This group had significant results in decreased pain on the VAS scale over the group that received TENS and pulsed EMG (Cochrane – exercises). Based on these studies, if a patient with WAD is experiencing dizziness as a symptom, eye fixation exercises may be a beneficial addition to the treatment plan. Another treatment option that has shown positive results in the literature is the use of isometric resistive exercises to strengthen the cervical muscles. Isometric exercises are strengthening exercises designed to strengthen the musculature while maintaining the body in one position. This may be beneficial for patients with acute WAD who are unable to move through a large range of motion, as they will still receive the benefit of strengthening exercises. A study done by Soderlund et al. compared two groups of patients receiving treatment for acute whiplash. The first group was receiving regular treatment that included instructions on what activities to avoid and what activities to continue with. Table 1 describes the treatment plan given to both the normal treatment group and the additional treatment group. Patients in the additional exercise group were instructed to follow all instructions given to the normal treatment group, as well as perform additional isometric exercises. This exercise is described as the patient lying down on the ground, and imagines a â€Å"quadrangle† behind their head. They are then instructed to imagine pushing their head into each corner of the quadrangle, and repeat the cycle 3 times. The result of this study found that patients in the additional treatment group were able to continue to decrease their pain rating at follow up periods of three and six months, whereas the normal treatment group had the same amount of pain at these follow up visits. This study would indicate that the additional treatments are beneficial to help decrease the patient’s pain longer after injury. How to cite ROM and Strengthening Exercises as a Treatment Option, Essay examples

Friday, December 6, 2019

Emission Testing free essay sample

With this paper I hope to gain a better understanding of emission pollution and the emission testing process. With my research and my visit to the local Clean Air Car Check site, I have compiled information that will prove valuable. I will define emission pollution and the major contributors. I will answer the why we have to emission test. I will also take you through the testing process. My overall goal of this paper is to ascertain whether or not emission testing is an effective way to reduce or prevent emission pollution when one owns a vehicle. Emission Pollution Emissions describe the gases and particles that are released into the air by many different sources, including vehicles. According to the U. S. Environmental Protection Agency (EPA) web site, the sources of emissions are put into four categories: point, mobile, biogenic, and area. Point sources include factories, mobile sources include vehicles, biogenic sources include gas seeps, and area sources include dry cleaners (EPA, 2006). For this paper, we will focus on mobile sources. Driving is the most polluting thing that we can do. The National Safety Council (NSC) states that motor vehicles release millions of tons of pollutants, classified as toxics, into the air each year. These toxics cause around 1,500 cases of cancer every year. Car emissions also contribute to acid rain and global warming (NSC, 2006). Vehicles emanate three major pollutants: hydrocarbons, nitrogen oxides, and carbon monoxide. The Coalition for Clean Air (CCA) web site states that hydrocarbons are defined as compounds containing various combinations of hydrogen and carbon atoms. Nitrogen Oxides pertain to compounds of nitric acid, nitrogen dioxide, and other oxides of nitrogen. They are typically created during combustion processes, and are major contributors to smog and acid deposition (CCA, 2007). The National Institute of Environmental Health Sciences (NIEHS) website displays the text book, Chemicals, the Environment and You. They define carbon monoxide as a colorless, odorless poison gas produced by incomplete combustion of organic matter (NIEHS, 2000). The Clean Air Car Check (CACC) web site says, â€Å"Cars and light duty trucks contribute 30-50 % of the pollution that cause harmful ozone and also contribute significantly to the amount of air toxics and particulate matter in the environment† (CACC, n. d. ). They also state that if our vehicles are properly maintained, there will be less contamination released in the air and ground water (CACC, n. d. ). What effect does emission pollution have on our environment? The Clean Air Car Check answers this by stating, Hydrocarbons are unburned gasoline particles that contribute to the formation of ground level ozone, often referred to as smog. Carbon monoxide is a colorless, odorless gas formed from partially burned fuel that can adversely affect mental function, visual focus, alertness, and can even cause death. Nitrogen oxides, when mixed with other compounds, can contribute to ground level ozone, acid rain, water quality deterioration and global warming. Ozone is an irritant produced from emissions from gasoline powered vehicles. It can cause eye and throat irritations, respiratory distress, and damage breathing passages, making it difficult for the lungs to work. Ozone is formed near the ground in a photochemical process: 1) Gasoline, paints and solvents evaporate, thereby releasing hydrocarbons. 2) Cars and factories burn fossil fuels, releasing nitrogen oxide and reactive hydrocarbons. 3) Heat and sunlight trigger a photochemical reaction between these emissions, transforming them into ozone (CACC, n. d. ). Emission Testing The time is here again; time to take the car in to be emission tested. What a pain in the neck! You might think that emission testing is a waste of time, and an inconvenience. What some people may not realize is that motor vehicle manufacturers are required to meet more and more severe pollution emission standards, and it is our responsibility to maintain our vehicles (CACC, n. d. ). Recognizing faulty emission control systems and having them repaired has reduced ozone emissions by more than 4,000 pounds each summer day. Testing is just part of the 1990 federal Clean Air Act. The goal of the act is to improve our quality of air by reducing hydrocarbons and nitrogen oxides (CACC, n. . ). The testing procedure may differ slightly depending on the age of the vehicle being tested. All vehicles, however, will get a gas cap pressure check. This test is used to see if the vehicles gas cap is keeping fuel vapors from escaping (CACC, n. d. ). Vehicles made from 1996 or newer will receive the on-board diagnostics test (OBD). This tests the vehicles on-board computer to make sure there ar e no malfunctions. The next test is the inspection and maintenance test (I/M 93). Vehicles made from 1981-1995 will be put on a treadmill, called a dynamometer. The exhaust is captured to evaluate the effectiveness of the emission control equipment (CACC, n. d. ). The last test is for vehicles from 1976-1980. A metal probe is inserted into the tailpipe while it is idle and a sensor is put on the hood to measure the engine speed (CACC, n. d. ). Vehicles that were made in 1975 or older are not required to be emission tested. I recently took a trip to my local Clean Air Car Check site to watch the testing procedure. A man told me that having people stand outside the waiting area is not usually allowed, but since I was doing research for school he allowed it. He also did not want his name to be used in my final paper. He did not want me to be in the way so he asked me to stay as far away as possible and he offered me a face mask. The first vehicle to be inspected was a 1990 Ford Ranger. The inspector walked around the vehicle with a long mirror, making frequent stops. I asked him what this step was for and he replied that it was to check for fluid leaks, holes in the exhaust system, or any modifications that may cause a safety hazard. Once the Ranger was inspected, the driver was asked to leave the vehicle and sit in the waiting area. The inspector checked the Ranger for a catalytic converter and then attached a device to the gas cap. This was the gas cap pressure check that makes sure that no fuel vapors are escaping. After that, the inspector drove the Ranger onto a treadmill device and had attached a large hose to the tailpipe. As he watched a screen he drove the Ranger as if he were driving it on the road. Accelerating and braking when necessary. The large hose collects the exhaust to check for emissions. The inspector let the driver return to the Ranger while he gathered the results. With a smile he politely said, â€Å"Congratulations, you passed†. The next few vehicles went through the same process. There was a different test, however, performed on a 2000 Chevrolet Blazer. After the inspector performed the gas cap pressure check, he plugged something into the bottom of the dashboard. I asked him what this process was and he said it was a scan tool and it is plugged into the OBD connector on the Blazer. He said it will read the Blazer’s computer and analyze whether or not the OBD system is working properly. I was at the Clean Air Car Check site for a little over an hour. Unfortunately, I did not see any vehicles that were from 1976-1980 so the probe test was not performed. Before I left, I asked the inspector why diesel engine trucks do not have to be tested. He said, â€Å"Unlike regular gas exhaust, the exhaust from a diesel engine has really low levels of the carbon monoxide and hydrocarbons. They just aren’t as polluting as regular cars†. Not necessarily agreeing with his last statement, I asked him how long he had worked there. He said with a smile, â€Å"10 long years. I have learned a lot, almost too much†. Effectiveness How effective is emission testing? It is effective enough to reduce emission pollution by 4,000 pounds every summer day. I asked the emission test inspector his opinion on the effectiveness of emission testing. â€Å"If our cars were not tested, the air would be much worse. † He said, â€Å"I think that having your car tested and repaired is keeping that much more crap out of our air†. My friend, who we will call Jan, said, â€Å"Emission testing is a big pain in the butt, and only three counties in Indiana do it, and I think THAT alone is bull. Doesnt make sense. I think that if they are going to do it, it should be in all fifty states, and all counties. † She continued, â€Å"But, â€Å"if it is helping reduce the pollution in the air we breathe, I guess I will have to put up with it†. I think that testing is effective because if a vehicle does not pass, it has a time period to be repaired or it will not be able to get registered. This car will not be allowed to drive on the road, and that is less emission toxics flowing into our air. Conclusion Emission pollution is a major issue in not only Indiana, but the rest of the country. If these toxics are released from our vehicles, and emission testing can help reduce the flow, then I strongly believe it is a step in the right direction.

Friday, November 29, 2019

PMA Results on Flight Express Aircrafts

The Beechcraft Baron 58 is the brainchild of Hawker Beechcraft Corporation. The corporation developed this particular model in1970. According to the Corporation’s website, a new Beechcraft 58 costs around 1.2 million dollars (Baron58 n.d). The specifications of this plane include a twin engine piston, six passenger seats, and two aft doors. It has a gross weight of 2450-2500 kilograms and a maximum take-off weight of 2450 kilograms.Advertising We will write a custom essay sample on PMA Results on Flight Express Aircrafts specifically for you for only $16.05 $11/page Learn More Flight Express is an air carrier company with a fleet of eighty-nine aircrafts. Out of these, twenty-seven are Beechcraft models (Flight Express 2010). Flight Express has its headquarters in Orlando, Florida and it operates in twenty six other states across the United States. Express prides itself in being a time-critical and an on demand carrier that specialises in regional air transport. The airline transports packages for several companies including those in publishing, life science, and banking industries. Flight Express’s pilots log over 64,000 flight hours annually (Flight Express, 2003). Although Flight Express operates under FAR (Federal Aviation Regulations), its operations will be looked into from the CAA’s perspective for the purpose of this cost assessment. This is mostly because the company’s FAR approved records are not accessible to the public. Since the cost assessment is done for a general case of 200 hours, the results obtained through either regulations (FAR or CAA) should not have a vast discrepancies between them. The Beechcraft’s maximum take-off weight is below 2730 kilograms, it is henceforth classified as a light piston engine aircraft (Civil Aviation Authority 2005). There are five specified maintenance checks for this aircraft category. The first one is Check A and it must be carried out before the first flight of the day. The second check is the fifty-hour check. This check has to be carried out after every fifty flight hours or alternatively after six months of operation. Then there is the 150-hour check that is carried out after every one hundred and fifty hours of flight. The other checks are the annual check- carried out after every twelve months, and the star inspection. The civil Aviation Authority stipulates most of these checks. According to the Authority, Check A requires the engine’s air filter to be inspected with emphasis on its cleanliness. The tyres and wheels of the plane also have to be checked for damages. The inflation levels and other anomalies also have to be checked.Advertising Looking for essay on aviation? Let's see if we can help you! Get your first paper with 15% OFF Learn More In addition, the functionality of the fuel pump has to be inspected during this check. The fifty-hour check involves inspection of the fuel pump, air filt er, wheels, and tyres. Extensive checks of these areas have to be carried out after either fifty hours of flight or six months whichever comes first. Most of the times, this check involves replacement of oil filters and tyres. The 150-hour check on its part coincides with the 50-hour checks. This means that all the inspections stipulated in the 50-hour check are included in this one. The standard operations in this check include engine servicing and sometimes tyre replacements. This check must be carried out after every one hundred and fifty hours of flight. On the other hand, the annual check is carried out after every twelve months. During this check all oil filters are replaced. The tyres might also be replaced if any signs of damage or wearing out were found. The fuel pump and the engine air filters might also be replaced during this annual check (Civil Aviation Authority 2005). Appendix X illustrates a study of how PMA parts can reduce the maintenance costs for Flight Express a ircrafts. For instance, it is assumed that Flight Express operates each Beechcraft Baron 58 for about 200 hours annually. This means that several parts will have to be replaced in accordance with CAA’s regulations. This means that aircraft parts like engine air filters, oil filters, main tyres, and nose tyres will be needed in the course of these checks. Other parts that can be replaced within the 200 hours of flight are fuel pumps and wheel assemblies. However, these parts are rarely replaced within this period in normal circumstances. Appendix X lists the estimated number of replacements that can be made within two hundred hours of flight. Within the estimated time frame of two hundred hours, a single aircraft will require these parts to be replaced; two engine air filters, one fuel pump, eight oil filters, two wheel assemblies, four main tyres, and two nose tyres. If Flight Express chooses to use OEM parts when making these replacements, it will cost the company fourteen t housand, seven hundred and ninety seven dollars and seventy eight cents. This includes the cost of a fuel pump that is often very high priced by most manufacturers. However, if Flight Express chooses to use PMA’s parts it will only cost the company a total of four thousand, nine hundred and eighty four dollars and fifty two cents. This indicates that Flight Express is set to save around sixty six percent in material costs if the company chooses to use PMA’s products. These possible savings are in terms of a single aircraft.Advertising We will write a custom essay sample on PMA Results on Flight Express Aircrafts specifically for you for only $16.05 $11/page Learn More Considering Flight Express operates a total of twenty seven Beechcraft Baron 58 aircrafts, the company stands to make substantial savings if PMA parts are used. Each of these aircrafts has an approximate two hundred hours of flight in one year. The total number of replacement s is in turn expected to be around fifty four engine filters, twenty seven fuel pumps, two hundred and sixteen oil filters, twelve wheel assemblies, one hundred and eight main tyres and fifty four nose tyres. If the company goes for PMA products, the company can save in excess of two hundred and forty thousand dollars in each maintenance cycle. When this list excludes the high priced fuel pumps, it will still cost Flight Express 45,136.54 dollars. It will cost the company seventy seven thousand, five hundred and forty six dollars and four cents if these same products are sourced from OEM. One of the limitations of this assessment is the method used to arrive at the average two hundred hours of flight per year. This is because this figure is estimated from the number of flight hours logged by each pilot annually (Flight Express 2010b). Summary The results of this case study indicate that PMA’s products are cheaper compared to those from alternative companies. Aviation companie s can take advantage of the cost cutting options provided by PMA. Any aviation company that chooses to use PMA-made spare parts stands to save a lot of money in maintenance costs. References Baron58, n.d, Beechcraft Baron 58 General Information. Web. Civil Aviation Authority, 2005, CAP 411: Light A/C Maint Schedules (Aeroplanes). Web. Flight Express, 2003, Initial and Recurrent Flight Training Handbook: Beechcraft 58 Baron. Web.Advertising Looking for essay on aviation? Let's see if we can help you! Get your first paper with 15% OFF Learn More Flight Express, 2010, About. Web. Flight Express, 2010b, Flight Express Fleet. Web. This essay on PMA Results on Flight Express Aircrafts was written and submitted by user Fallen One to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Monday, November 25, 2019

Make Paper Chromatography With Leaves

Make Paper Chromatography With Leaves You can use paper chromatography to see the different pigments that produce the colors in leaves.  Most plants contain several pigment molecules, so experiment with many species of leaves to see the wide range of colors. This is a simple science project that takes about 2 hours. Key Takeaway: Leaf Paper Chromatography Chromatography is a chemical purification method that separates colored substances. In paper chromatography, pigments may be separated based on the different size of the molecules.Everyone knows leaves contain chlorophyll, which is green, but plants actually contain a wide range of other pigment molecules.For paper chromatography, plant cells are broken open to release their pigment molecules. A solution of plant matter and alcohol is placed at the bottom of a piece of paper. Alcohol moves up the paper, taking pigment molecules with it. Its easier for smaller molecules to move through the fibers in paper, so they travel fastest and move the furthest up the paper. Larger molecules are slower and dont travel as far up the paper. What You Need You only need a few simple materials for this project. While you can perform it using only one type of leaf (e.g., chopped spinach), you can experience the greatest range of pigment colors by collecting several types of leaves. LeavesSmall  Jars with LidsRubbing AlcoholCoffee FiltersHot WaterShallow PanKitchen Utensils Instructions Take 2-3 large leaves (or the equivalent with smaller leaves), tear them into tiny pieces, and place them into small jars with lids.Add enough alcohol to just cover the leaves.Loosely cover the jars and set them into a shallow pan containing an inch or so of hot tap water.Let the jars sit in the hot water for at least a half hour. Replace the hot water as it cools and swirl the jars from time to time.The jars are done when the alcohol has picked up color from the leaves. The darker the color, the brighter the chromatogram will be.Cut or tear a long strip of coffee filter paper for each jar.Place one strip of paper into each jar, with one end in the alcohol and the other outside of the jar.As the alcohol evaporates, it will pull the pigment up the paper, separating pigments according to size (largest will move the shortest distance).After 30-90 minutes (or until the desired separation is obtained), remove the strips of paper and allow them to dry.Can you identify which pigments are pr esent? Does the season in which the leaves are picked affect their colors? Tips for Success Try using frozen chopped spinach leaves.Experiment with other types of paper.You can substitute other alcohols for the rubbing alcohol, such as ethyl alcohol or methyl alcohol.If your chromatogram is pale, next time use more leaves and/or smaller pieces to yield more pigment. If you have a blender available, you can use it to finely chop the leaves. How Leaf Paper Chromatography Works Pigment molecules, such as chlorophyll and anthocyanins, are contained within plant leaves. Chlorophyll is found in organelles called chloroplasts. The plant cells need to be torn open to expose their pigment molecules. The macerated leaves are placed in a small amount of alcohol, which acts as a solvent. Hot water helps soften the plant matter, making it easier to extract the pigments into the alcohol. The end of a piece of paper is placed in the solution of alcohol, water, and pigment. The other end stands straight up. Gravity pulls on the molecules, while alcohol travels up the paper via capillary action, pulling pigment molecules upward with it. The choice of paper is important because if the fiber mesh is too dense (like printer paper), few of the pigment molecules will be small enough to navigate the maze of cellulose fibers to travel upward. If the mesh is too open (like a paper towel), then all of the pigment molecules easily travel up the paper and its difficult to separate them. Also, some pigment might be more soluble in water than in alcohol. If a molecule is highly soluble in alcohol, it travels through the paper (the mobile phase). An insoluble molecule might remain in the liquid. The technique is used to test purity of samples, where a pure solution should only produce a single band. It is also used to purify and isolate fractions. After the chromatogram has developed, the different bands may be cut apart and the pigments recovered. Sources Block, Richard J.; Durrum, Emmett L.; Zweig, Gunter (1955). A Manual of Paper Chromatography and Paper Electrophoresis. Elsevier. ISBN 978-1-4832-7680-9.Haslam, Edwin (2007). Vegetable tannins – Lessons of a phytochemical lifetime. Phytochemistry. 68 (22–24): 2713–21. doi:10.1016/j.phytochem.2007.09.009