Plant Transpiration Lab Report free essay sample

Plant Transpiration Project By Shelby Hyde Lab 030 Date Due: March 12, 2013 The Effect of Wind on the Rate of Transpiration Introduction: Transpiration is the process through which water is evaporated from plants. This serves many purposes, including thermoregulation and the diffusion of CO2, but most importantly creates a water potential difference which causes the mass flow of water and nutrients from the roots to the leaves of the plant. Transpiration is accomplished through structures on the surface of the leaf called stomata, which are guarded by a pair of guard cells. Guard cells control the opening and closing of the stomata as well as the size of the opening; they open in order to obtain O2 and CO2 in the process they allow the escape of H2O. This experiment was conducted to learn more about this process, and how certain common environmental factors affect it. Plant transpiration increases with the presence of wind due to increased evaporation from leaves. We will write a custom essay sample on Plant Transpiration Lab Report or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Results: The transpiration rate of the sunflower in the presence of wind was consistently greater than that without wind, also causing the mean to be higher, shown in Table 1. Also included in Table 1, the variability was less in the sunflower with wind along with standard deviation. Table 1: Rate of Transpiration in sunflower plant with and without wind. Discussion: Although the rate of transpiration was consistently, noticeably greater while wind was present than it was in the absence of wind, there were some limitations to this study. One of the limitations of the experiment is that was performed in a college lab setting with various activities simultaneously going on, which could’ve affected the speed of the wind between all of the runs. The main shortcoming is that, because only one plant of one species was used, this cannot be used to generalize that this is true for all plants. In general, the results support the hypothesis that the rate of transpiration is higher in plants while wind is present. Transpiration increases in the presence of wind for two main reasons. When the stomata open, the wind would increase evaporation and the amount of H2O that escapes from the open pores. Also, when water is transpired it remains around the plant, causing area within the vicinity to become humid. Wind pushes that saturated air and replaces it with drier air, which is easier for water to evaporate into. Further studies could include not only other variables affecting transpiration, such as relative humidity of the atmosphere, temperature, pH of water and amount of available water, but also how much each of those individual variables contribute to the rate of transpiration in relation to each other. Literature Cited: George Burba,  Michael Pidwirny  (Lead Author);Debbie Swarthout  (Contributing Author);Sidney Draggan Ph. D. ,  Daniel Robert Taub  (Topic Editor) Transpiration. In: Encyclopedia of Earth. Eds. Cutler J. Cleveland (Washington, D. C. : Environmental Information Coalition, National Council for Science and the Environment). [First published in the Encyclopedia of Earth August 3, 2010; Last revised Date December 16, 2010; Retrieved March 13, 2013 lt;http://www. eoearth. org/article/Transpiration? topic=58074gt;

Griswold vs Conneticut Essays - Birth Control In The United States

Griswold vs Conneticut Essays - Birth Control In The United States Griswold vs Conneticut Griswold v. Connecticut Estelle Griswold was a former office worker and a certified medical physician. After several years of traveling abroad she returned to her home state of Connecticut. While searching for a job she came across an executive director position at Planned Parenthood League of Connecticut, but having little experience she took the job anyways and was willing to learn about contraception. She than began a movement to supply Connecticut women with information on birth control. This essay will clarify the history of rights under Connecticut?s state law, which turned the Griswold v. Connecticut case, an influential case for many different reasons. Until 1965, The United States Supreme court dodged cases that had involvement with reproductive rights which then most of the cases would be dismissed due to the lack of standing until Griswold?s case that came along. The case from Connecticut?s outdated and unforced laws against the usage of contraceptives like birth control. After taking her position Connecticut?s planned parenthood organization, Griswold met two men would help in to campaign to battle with the state?s anticontraception law. The two gentlemen were Dr. C. Lee Buxton and Fowler V. Harper. Together, the three of them would fight for the legalization of birth control. Griswold, Buxton and Harper felt that a ban on the use of contraceptives violated the right privacy. ?Their efforts would also prove instrumental in revolutionizing American law by bringing the so-called right of privacy under the protective umbrella of the U.S. Constitution.?(Johnson, I) Estelle Griswold?s fight for legalization would be faced with a cha llenge of Connecticut?s 1879 statute that made it a crime to use contraceptives. ?Although several other states in the 1950?s maintained restrictions on the manufacture and advertising of contraceptives, Connecticut?s statute forbidding the ?use? and ?abetting? in the use of contraceptives was the most restrictive in the country.?(Johnson, I) The constitution doesn?t protect a general right to privacy, but within the Bill of Rights there were zones created that established privacy. The Amendments that were used to justify a right to privacy were the ninth and fourteenth Amendment. The argument of the ninth and fourteenth Amendment related to this case is to ensure the civil and political liberties of the people and to make sure the government is not infringing on them. Another argument could be ?the privacy that is lurking between the lines or behind the words of the Bill of Rights that point to the First, Third, Fourth and Fifth Amendments.?(Johnson, 54) The First Amendment vows that one?s idea is simply one?s own and would not be dictated by governmental power. The Third and Fourth Amendments are quite similar because people feared a violation of their private space, which concerned the writers of the Declaration of Independence as it repeated itself in the Fourth Amendment of unreasonable search and seizures. Finally c oming to the Fifth Amendment, it may offer some protection for personal privacy because it manages individual right not to give evidence that could be used against them. Therefore there were several legal ramifications for the decision to uphold a right to privacy was first that the Supreme Court not only overturned Connecticut?s out of date state law, but it also ended up establishing a new constitutional right to privacy as written right in the constitution. The decision had also brought the movement for people to freely yet personally choose whether or not to use contraception. The second ramification of the decision was that Buxton and Griswold hinted that the Planned Parenthood League was planning on reopening the clinic within six weeks. Thirdly, several months after the decision was announced, The Planned Parenthood League of Connecticut ran its first birth control counseling sessions since 1961. Lastly, within one year Connecticut had opened two birth control clinics in two of Connecticut?s cities. ?Two and half years after the Supreme Court decision in Griswold, according to responses to questionnaires prepared by Buxton, there were six PPLC C birth control clinics operating in the state.? (Johnson, 182) In conclusion, Estelle Griswold was the center of a controversy and made outrageous, but valid points to the people of Connecticut. She fought for what she believed in and by the ruling of the Supreme Court she wasn?t the

Global Warming Essay Example | Topics and Well Written Essays - 1250 words

Global Warming - Essay Example Accordingly, this brief essay will attempt to briefly analyze this monolithic problem and propose a middle path to a debate that has been raging and consuming valuable time in the process. Furthermore, a determination will be sought to be made with regards to the question of whether human action or natural causes best explain the climate fluctuations that planet earth has recently been chronicling. Lastly, as a function of the previous points of discussion and analysis, the author will attempt to proscribe a reasonable and performable set of steps and solutions which both the scientific community and the world at large could and should seek to employ as a function of ameliorating the stress on planet earth and the issues at hand. Firstly, there is the point of view that strongly believes that the swings in climate change are the direct result of the presence of high amounts of human CO2 in the atmosphere that is causing a greenhouse effect on the planet and thereby causing world temp eratures to rise. Prima fascia of this argument is the belief that human CO2 emissions are responsible for the changes to the global climate. It follows therefore that those which ascribe to this point of view are the most vehement that drastic and immediate changes to the manner in which human beings interact with planet earth and seek to use her resources in order to achieve a high standard of living be re-assessed as a function of whether such practices are best for the future health and longevity of the planet (Gan et al 6555). However, the biggest drawback to this particular line of reasoning is the fact that the overall extent to which human CO2 factors into the percentage of total CO2 generated by planet earth on a yearly basis is so miniscule as to be laughable. Indeed, numerous studies have convincingly noted that human CO2 emissions only account for around 4% of total earth CO2 release in any given calendar year. Although this by no means relieves humans of their responsib ility towards the planet, it does however help put into perspective the precise scope of this problem and the means by which it should be sought to be rectified. The problem with this point of view is of course the fact that the main causal factors for global climate change with respect to the recent changes in temperature patterns have not been considered. For instance, there is a preponderance of evidence that the size and heat the sun generates is of course non-uniform and varies depending on the level of solar flares and solar storm activity (Powledge 9). As such, scientists have noted that beyond CO2 concentrations, the suns actual energy output has increased slightly over the exact same period in which the global climate change has been most powerfully noted (Ferrara 46). Of course the purpose of this brief essay is not to convince the reader regarding what the true culprit of global climate change truly is; rather, it is merely meant to acquaint the reader with the various ca usal mechanisms that likely influence the way in which the planet’s climate is regulated and changes as both a function of solar activity, human actions, and overall concentration of a number of other factors. Yet another issue with the global warming as a result of CO2 emission side of the argument is the fact that it is scientifically proven that global temperature is determined not only by CO2

Other Financial Management Techniques Essay Example | Topics and Well Written Essays - 1500 words

Other Financial Management Techniques - Essay Example The implementation of wrong performance measures would mean that the management has not allocated balanced weight-ages to all these four areas of organizational goals in order to link it to the compensation structure of the employees. The tying of wrong performance measures to the compensation of the employees would mean that it has the likelihood of giving rise to unethical behaviour among the workers and the employees in the manufacturing plants (Tonchia and  Quagini, 2010). The examples of wrong performance being tied to compensation include the aspects in which the performance of the employees is linked only with the volume of output with ignorance in the quality of the finished products being produced by the companies. The management often pays more attention to the volume of output and overlooks the quality of the product being offered in the market. Thus linking the compensation structure with such performance measure could lead the employees to adopt short-cut procedures in the process of manufacturing. This would give rise to unethical behaviour among the employees and they would engage in work activities that would allow them to produce more products in the manufacturing process. The concentration solely towards the volume of output may lead to procurement of high amount of raw materials and inventory but the service level of the workers may suffer. This has been shown by the graph given below. The companies may not track important and quality contribution of the employees and may not give reward such activities of the workers are example of wrong performance measures being linked to compensation. This would lead to the decline of the quality of the work in the production unit and unethical behaviours may surface where the employees would be driven to get incentive without meeting the requirements of product quality, service level to the customers, etc. It would also lead to unethical behaviours of performing in such a way that fulfils the short ter m interests of the employees to get more compensation but compromises on the goals of the organization in terms of meeting the quantity and quality level for several business contracts. Steps of EEC: avoidance of unethical behaviour The Eddison Electronics Company (EEC) is required to active steps for avoiding unethical behaviour in the manufacturing units that produces several electronic items. In order to avoid unethical behaviour, EEC would be required to link the compensation of the employees with the right performance measurement measures. In order to do this, EEC would need to assess the short term and long term goals of the company and the deadlines to be met in terms of the contracts to be delivered over the period of time. This would enable EEC to understand the exact requirement from their workforce or the output required from the workforce in terms of both volume of the output and the quality of service to their customers. EEC would need to link the compensation of the wo rkforce with the various areas like financial targets of the company, customer service to be delivered, the internal benchmarks of product innovation, quality and steps to maintain high service level for the customers and the initiatives to be taken to maintain a culture for the growth of

Using the Barack Obamas Health Care Reform Speech to Democratic Essay

Using the Barack Obamas Health Care Reform Speech to Democratic Caucus, decide which comparative ideological models(Political Spectrum,Political Compass,Nolan Model,Ideological Space)the speech represents - Essay Example e considers the intrusiveness in the free market of Medicare, Veteran’s Administration benefits and the massive regulatory apparatus of Health and Human Services (HHS) to envelop the entire health care delivery system in the United States under a Federal framework. â€Å"The director of the Congressional Budget Office said Tuesday that the health care reform legislation would cost, over the next ten years, $115 billion more than previously thought, bringing the total cost to more than $1 trillion. (Tapper)† The government is conducting a wholesale takeover of what was essentially a market provided service. Whatever one may think of the merits of the issue, the Nolan Chart allows the reader to determine with fair precision where the speech lands in the political pedigree on the chart itself. â€Å"Now, there are some who wanted a single-payer government-run system.   That’s not this bill.   The Republicans wanted what I called the â€Å"foxes guard the henhouse approach† in which we further deregulate the insurance companies and let them run wild, the notion being somehow that that was going to lower costs for the American people.   I don’t know a serious health care economist who buys that idea, but that was their concept.† Obama is admitting that an authoritarian model is being employed through the use of increased regulation of the health care providers in the nation. If that were not the case, why would the legislation be necessary in the first place if it were not designed to increase the power of the government to regulate and control the industry? â€Å"The second thing this does is it creates a pool, a marketplace, where individuals and small businesses, who right now are having a terrible time out there getting health insurance, are going to be able to purchase health insurance as part of a big group -- just like federal employees, just like members of Congress.   They are now going to be part of a pool that can negotiate for better rates, better

Kurt Donald Cobain Essay -- essays research papers

My favorite artist is Kurt Cobain. He was born February 20, 1967 & died April 5, 1994 at the age of 27. He was the vocalist/guitarist for the famous Grunge Rock band named â€Å"Nirvana†. Which was formed in 1986. Nirvana was composed of two other people who were really close friends of Kurt. This was the beginning of Kurt’s prosperous career. But for him that was the beginning of a painful and stressful life Kurt’s education level wasn’t high. He dropped out of High School at the age of 17. Being a senior he only had two more months left to graduate but that was the choice he made. Since he had been playing & composing music since the age of 13. He chose his music career over his education . Since he really didn’t care about his future ,since he already knew that he wasn’t going to ... Kurt Donald Cobain Essay -- essays research papers My favorite artist is Kurt Cobain. He was born February 20, 1967 & died April 5, 1994 at the age of 27. He was the vocalist/guitarist for the famous Grunge Rock band named â€Å"Nirvana†. Which was formed in 1986. Nirvana was composed of two other people who were really close friends of Kurt. This was the beginning of Kurt’s prosperous career. But for him that was the beginning of a painful and stressful life Kurt’s education level wasn’t high. He dropped out of High School at the age of 17. Being a senior he only had two more months left to graduate but that was the choice he made. Since he had been playing & composing music since the age of 13. He chose his music career over his education . Since he really didn’t care about his future ,since he already knew that he wasn’t going to ...

Psychology of Trading Essay

In a general summary of human events and fortunes, diametrical oppositions create a kind of dialectic of change that works in cycles with not a lot of change happening for most companies but rather slow decline for many and quick change only to face a doomed fall for so many more. This is not really delved into, what partnership the opposing teams have for each other. The professors who are â€Å"out of touch† and talking about fundamentals against the more clever or crafty investment professionals who know and have known for so long how irrational the market is and how crowd dynamics certainly play a huge role in raising or lowering certain stocks. While the authors seem to think that professors are genuinely out of touch and should teach to industry standards what is neglected are how much fundamentals should matter in the long-run. However, I do agree that professors should certainly assess crowd psychology and not only that but the addictive mass-consumption aspect of investments. Stocks are products just like any other though they are symbolic products as well as liquid assets so it’s certainly prestigious to say that you own a lot of shares of Google, just like it used to be prestigious to own Bethlehem Steel but why not just say you have a lot of money to spend on electronic packets of value? Why do people boast about their portfolio and encourage friends to buy into the next great stock that they claim to be smitten by? I think that social networks rather than classic crowd psychology treatise are more helpful in discovering the cascades of â€Å"irrational† investing and â€Å"rational† counter-investing that people engage in. Because stocks have contested and insecure meaning equilibrium is rare yet if the fundamentals are there or more broadly, if they offer a great product that people love to consume then truly it would be not so wise to follow what people do as you miss the best opportunity and settle for the second best. Theoretically if a person could audit a company with a team of the best auditors they should be in possession of very valuable information if this company is trading heavily but can be expected to reach an equilibrium point where it rises for quite awhile and never falls too deeply. Kind of like Best Buy’s stock from July of 2005 to October of 2008, there it seemed like the company satisfied with fundamentals for a long time and created a crowd of loyal consumers who bought not for gain but stability. Then too much bad news and the fundamentals started looking not so good, resulting in a huge dip in the price of the stock to approximately half of the equilibrium value it maintained during the time coordinates specified above. Prestige and the social conditioning forces are simplified in this article with a few less than well-chosen passages of Le Bon who wrote an awful lot about crowd psychology but was more of an inspiration than truly a fruition of great ideas that stand firm on their own. How convincing both the fundamentals argument and the crowd-mechanisms are is really uncertain as even the authors seem to realize that both are important though crowds are far more discussed than issues like why â€Å"Fundamentals† are not always terribly predictive and why. A lot is stated in this article but it’s not really a great think-piece as you learn a lot of information but without a great theoretical framework it resembles a mismatch that barely works towards conciliation.