Variations in the skeletal systems of two early ty Essays

Variations in the skeletal systems of two early types of human are illustrated in this diagram. To begin with the upper half of the body, australopithecus afarensis had a much broader chest and waist than homo erectus, giving it a rounder appearance. The former had much longer arms and larger hands, which would have been useful for climbing trees. As for the lower half of the body, we can see that homo erectus had proportionately longer legs and larger hip, knee and ankle joints. The feet of homo erectus were also smaller and more arched, with shorter toes. These differences meant that homo erectus was better suited to long-distance running . Overall, australopithecus afarensis had a heavier body and much longer arms, while homo erectus was slimmer and had more developed joints. In conclusion, we can see significant changes in the development of early humans from the diagram. Homo erectus is more similar to contemporary human beings with its long legs and arched feet. The physical differences are clearly related to differences in the lifestyles of tree climbers and endurance runners.

Process Analysis Essays - Canadian Cuisine, English Cuisine

Process Analysis Essays - Canadian Cuisine, English Cuisine Process Analysis Process Analysis For a good reason, I find it crazy that people can so trivially disregard making a box of mac and cheese as an art. Granted, it might not be as painstaking as painting the Sistine Chapel, (thanks for that, Michelangelo) but the act of preparation of mac and cheese is still elegant and precise. From choosing the box, to adding the cheese, it is not as simple as you believe it to be. Making mac and cheese is an art and must be learned. It takes years to master the making of mac and cheese As a result, it takes focus, determination, character, and even a little bit of soul. Each batch you make has a part of you inside of it, and a good batch will have the totality of your heart and soul poured in right alongside the milk. So at this point, any sane person is going to ask me, Matt, how in the world do you do it, then? Luckily, following this is a step-by-step guide that even an idiot can follow, so hang tight and pay close attention. First, youre going to need to buy a box of macaroni and cheese Even though this seems redundant, there are some special tips to keep in mind. For one, Dollar General sells cheap boxes of mac and cheese. A Kraft box costs a dollar, and a Dollar General brand costs 60 cents. Doesnt the choice seem obvious? Dollar General brand, right? Youre wrong! Never disgrace your pot with their lackluster noodles and the powdery slop that Dollar General, or any other competitor, calls cheese. The only proper way to make mac and cheese is with a Kraft box, and if you think otherwise, stop reading here, and stay away from my kitchen, you vermin. So, youve bought your box and youre standing cluelessly in your kitchen, dumbfounded by the variety of cooking utensils. Consequently, it is time for the second step. Dig deep in your cupboards to procure a medium-sized pot and a strainer. Grab a large spoon as well, but you can substitute for a plastic spoon as well. Wooden spoons are the best because they do not conduct heat. Choose with care. In case you do not happen to have a wooden spoon or plastic spoon handy, a regular metal table spoon will be able to complete the task. Just be cautious when using it as it may heat up during the process. Make it a point to use a pot you are familiar with to bolster your success. If you are one who blindly follows instructions printed on the box, it is time for a glorious reform. That is silly mindlessness, and it will result in mediocrity on a good day. Additionally, YOU will be forced to shovel your own failure down your throat as you soak your fork in your worthless tears. How sad. The bes t thing you can do is follow the nationally-certified Matt Formula which goes as follows. Fill your pan up about halfway to three quarters with water. This is not the most important step, so dont treat it as such. Next, you should turn the burner on high, and bring the water to a nice boil. In spite of your temptation to pour the noodles right in, resist. It is futile and will only result in complications later. You will know the water is boiling when bubbles are rapidly rising to the top, and this, my friend, is when the fun begins, but the artform must start. The next few steps must be performed precisely or else your macaroni and cheese will end up in the trash just like all of your dreams. But if you complete this correctly, you mac and cheese will be held high and praised, much like you will be. If you do not wait for the water to reach its peak boiling point, you day will be anything but fun. Before you pour the noodles in, grab the packet of cheese out of the box. Now that the noodles are in the pot, you may turn the heat down from high to halfway between high and medium. The box will tell you that eight minutes is the

Implication of implementing BIS in Abu Dhabi police department ..(ERP) Essay

Implication of implementing BIS in Abu Dhabi police department ..(ERP) enterprise resource planning - Essay Example These subsystems and the information they contain include: Traditional financial performance metrics provide information about the past performance of an organization but are not particularly suited for predicting future performance. By taking into account factors other than financial ones, the management of a company can convert the company’s strategy into practically achievable goals and assess how well the strategic plan is being carried out. An organization has to devise strategies and do careful planning before implementing ERP techniques. ERP helps to reduce costs and enhance the quality (efficiency) of working time. ERP techniques help maximize the value of technological advancements and align their utilization to the goals of the organization. For example, ERP enables a manager in the Sales Department to answer a customer query immediately by seeing the real-time status of the customer’s product delivery, which would not have been possible otherwise. ERP techniques have facilitated organizations’ ability to do away with tedious and time-consuming processes (Ptak & Schrgenheim,2003).Enterprise software is built around a large number of predefined business practices based on best practices. Best practices are the most successful solutions or methods of solving problems an organization uses for regularly and effectively achieving business goals. Enterprise systems help increase efficiency and help mangers make better decisions by providing them updated information from throughout the firm. It also helps form a more ‘customer-driven’ organization by facilitating faster responses to customer queries and requests for information. A variety of factors, such as globalization, rapid innovation, deregulation and technological advances, increasing competition and dynamic changes in the market, have forced many organizations to rethink how they can gain competitive

Frost resistance of concrete containing brick aggregate Dissertation

Frost resistance of concrete containing brick aggregate - Dissertation Example This amazing ability also allowed him to predict, characterize and exploit the chemical and physical qualities of minerals, metals and other elements found in nature. It is this specific knowledge that makes it possible to develop new applications in the industries such as construction, shipbuilding, manufacturing, food production, etc. Early structures built by early civilizations of Egypt, China, India and other nations are still in existence today, although most of them are in ruins already. Man will always build new structures as habitat and places to work in, sometimes building skyscrapers to maximize the use of limited land. However, a growing realization that Earth's resources are not infinite has lead to the Green Movement in the construction industry these days. A big component of today's modern structures is concrete which makes up more than 60% of the total volume in construction materials. This paper discusses the exciting possibilities of using concrete with brick aggreg ates in them to improve their frost resistance and make them long-lasting. This paper examines the use of brick aggregates instead of the other usual aggregates in cement. Some studies showed brick aggregates concrete to have better qualities (Singh 27). I. Aim of the Project It is the aspiration of every architect and engineer to build structures which can last for long periods of time. The idea is to build for posterity if possible and this can be done with the right types of construction materials. Concrete has always been a favourite material due to its availability, strength and ease of use. The word concrete comes from the Latin concretus which means compact or condensed; this makes concrete desirable as a material of choice. In concrete, builders have found the ideal material to construct grand buildings of all shapes and sizes. Concrete is a composite construction material derived by mixing cement with fly ash, slags, aggregates (made up of gravel, crushed rocks, limestone, granite and a little bit of sand) water and several chemical admixtures. Concrete solidifies into place after mixing it with water in a process known as hydration. The water reacts chemically with the cement to form and bond all its other components together into a hard rock-like material. Concrete is the most widely-used man-made construction material in the world today. A lot of factors determine whether the concrete will stand the test of time. Moreover, engineering structural designs need to take into consideration the actual load weights imposed on the concrete. A concrete structure is exposed to various elements of nature such as wind, rain, earthquakes, fires, moisture and snow, to name just a few. In other words, the durability of a structure is to a large extent determined by its exposure to the elements. An important consideration that allows a concrete mixture to withstand the extreme elements of nature is the design and composition of the aggregates mixture forming the c oncrete. It is in this regard that I am examining how brick aggregates can improve the frost resistance of the concrete. A re-examination of its desired frost-resistant qualities is vital because it will improve concrete structures by making them more durable. It will help in minimising use of scarce construction materials by reducing a need to build new structures to replace old ones. The problem of

Logical Fallacies Essay Example for Free

Logical Fallacies Essay The following is an example of the said argument taken from the website, www.fallacyfiles.com: [Joe McCarthy] announced that he had penetrated Trumans iron curtain of secrecy and that he proposed forthwith to present 81 cases†¦ Cases of exactly what? I am only giving the Senate, he said, cases in which it is clear there is a definite Communist connection†¦persons whom I consider to be Communists in the State Department. †¦ Of Case 40, he said, I do not have much information on this except the general statement of the agency†¦that there is nothing in the files to disprove his Communist connections. Analysis: The fallacy exists in the assumption that the burden of the evidence is to prove that Truman’s communist connections are not true when it was never established to be true in the first place. This type of error of logic is committed when the lack of evidence is used to prove something and this is false because the lack of evidence is not evidence in itself. One’s ignorance or lack of knowledge cannot be used to prove or disprove something. 2.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Begging the question This fallacy, also known as â€Å"circular reasoning†, occurs when a premise is used as the conclusion or when a claim that is yet to be established or proven occurs as the conclusion. The fallacy is illustrated in following example taken from the book, The Abortion Controversy by Helen Alvare: To cast abortion as a solely private moral question,†¦is to lose touch with common sense: How human beings treat one another is practically the definition of a public moral matter. Of course, there are many private aspects of human relations, but the question whether one human being should be allowed fatally to harm another is not one of them. Abortion is an inescapably public matter. Analysis: This writer sees more than one point of flawed reasoning in the given example. Firstly, there is the assumption that the idea of morality is dependent on whether the issue at hand should be considered a public or private matter. Second, there has been no attempt to expound what qualifies as â€Å"the private aspects of human relations† and it necessarily contradicts the given definition of a public moral matter which is â€Å"how human beings treat one another.† To say that something is practically the definition of something else does not prove that it is. Thirdly, the implication that equates abortion to allowing â€Å"humans to fatally harm another† is but another assumption and does not prove the conclusion, because that premise itself is in need of proof. 3.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Common belief This fallacy occurs when people hinge the truth of a claim or proposition on what is believed by many or popular belief. Popular belief is simply statistics. The prevalence of an opinion does not account for the truth of a claim. For example just because many people believe there is a God or just because certain cultures believe that illnesses are caused by bad spirits does not make both claims true. The truth of a claim cannot be proven by sheer popularity. 4.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Division This error in logic occurs when the characteristics of the parts are assumed to be true for the whole. Take for example the following statements from the website www.fallacyfiles.com: 1. The universe has existed for fifteen billion years.   Ã‚  Ã‚   The universe is made out of molecules.   Ã‚  Ã‚   Therefore, each of the molecules in the universe has existed for fifteen billion years. Analysis: While it may be true that certain characteristics can apply to both the parts and the whole, this is not an absolute truth. In the example given, although it is possible that age (i.e. fifteen billion years) may be a shared characteristic, it is not the case for the example given because although the universe has been in fact been in existence for fifteen billion years, not all of its molecules has been existing since then. List of references: Engel M. With Good Reason: An Introduction to Informal Fallacies (Fifth Edition). St. Martins, 1994 Krabbe, E. Appeal to Ignorance, in Fallacies: Classical and Contemporary Reading. USA: Penn State Press, 1995 Rovere R. Introduction to Logic (Fourth Edition). USA: 1960. Walton, D. The Essential Ingredients of the Fallacy of Begging the Question, Fallacies: Classical and Contemporary Readings. USA: Penn State Press, 1995.

The Civil Rights Movement :: African-American Civil Rights Movement

In the postwar years, the NAACP's legal strategy for civil rights continued to succeed. Led by Thurgood Marshall, the NAACP Legal Defense Fund challenged and overturned many forms of discrimination, but their main thrust was equal educational opportunities. For example, in Sweat v. Painter (1950), the Supreme Court decided that the University of Texas had to integrate its law school. Marshall and the Defense Fund worked with Southern plaintiffs to challenge the Plessy doctrine directly, arguing in effect that separate was inherently unequal. The U.S. Supreme Court heard arguments on five cases that challenged elementary- and secondary-school segregation, and in May 1954 issued its landmark ruling in Brown v. Board of Education that stated that racially segregated education was unconstitutional. White Southerners received the Brown decision first with shock and, in some instances, with expressions of goodwill. By 1955, however, white opposition in the South had grown into massive resistance, a strategy to persuade all whites to resist compliance with the desegregation orders. It was believed that if enough people refused to cooperate with the federal court order, it could not be enforced. Tactics included firing school employees who showed willingness to seek integration, closing public schools rather than desegregating, and boycotting all public education that was integrated.   Ã‚  Ã‚  Ã‚  Ã‚  The White Citizens Council was formed and led opposition to school desegregation allover the South. The Citizens Council called for economic coercion of blacks who favored integrated schools, such as firing them from jobs, and the creation of private, all-white schools. Virtually no schools in the South were desegregated in the first years after the Brown decision. In Virginia one county did indeed close its public schools. In Little Rock, Arkansas, in 1957, Governor Orval Faubus defied a federal court order to admit nine black students to Central High School, and President Dwight Eisenhower sent federal troops to enforce desegregation. The event was covered by the national media, and the fate of the Little Rock Nine, the students attempting to integrate the school, dramatized the seriousness of the school desegregation issue to many Americans. Although not all school desegregation was as dramatic as in Little Rock, the desegregation process did proceed-gradually. Frequently schools were desegregated only in theory, because racially segregated neighborhoods led to segregated schools. To overcome this problem, some school districts in the 1970s tried busing students to schools outside of their neighborhoods. As desegregation progressed, the membership of the Ku Klux Klan (KKK) grew.   Ã‚  Ã‚  Ã‚  Ã‚  The KKK used violence or threats against anyone who was suspected of favoring desegregation or black civil rights. Klan terror, including intimidation and murder, was widespread in the South in the 1950s and 1960s, though Klan

Madonna and the Child with Saint Peter and Saint John

The National Gallery of Art in Washington D. C. holds a wide selection of works of art from ancient times. Among these are Madonna and the Child (expressed in tempera on panel) and Madonna and the Child with Saint Peter and Saint John the Evangelist (also expressed in tempera on panel). The themes of both works are similar in that both contain an interpretation of the Virgin Mary (Madonna) and her interaction with the Christ Child. However, the differing contexts in which these are placed add further levels of meaning to each individual piece as depicted by each artist. Despite this, similarities also exist between the two paintings, and these similarities range from the use of color and lighting, to the sizes and perspectives used by the artists. Therefore, superimposed upon the differences in style, context and (to an extent) subject matter; similarities of color, lighting and perspective are to be found in these two works of art. The work Madonna and the Child was most likely painted some time between 1320 and 1330 AD. This was done in the late Byzantine Period in Italy by the artist Giotto, whose style is considered to be anticipatory of naturalism. The panel that holds this particular work represents Giotto in the later stages of his career and demonstrates the sobriety and restraint of an artist that had already spent his enthusiastic flare. Nardo (who died in his twenties), on the other hand, displays his 1360 painting in much brighter and vibrant colors that are typical of his youth and enthusiasm. While in Giotto’s work one detects the deliberate strokes of a talented artist that seeks to display the natural portrait of a woman and her baby caught in motion, in Nardo one also sees the talent, but with a less naturalistic tint. Nardo represents a return to the more traditional portrait-like paintings where subjects appeared poised specifically to be captured in the medium. Therefore, whereas in Giotto’s painting, the hands of the mother and child are caught in the act of brushing by her chest, Nardo’s painting depicts mother and child in absence of motion. Furthermore, Nardo’s painting includes the apostles on the side in adoration of these persons as saints, while Giotto represents them more on the side of human persons spontaneously experiencing life in solitude. The colors and lighting techniques used by these two artists offer themselves up for scrutiny. Contrast and conceptualization are used to a large extent in both the Giotto and the Nardo paintings. Giotto uses a method of alternating between gold and black to emphasize the importance of the Madonna. A conceptual interpretation of the colors might also demonstrate that the Madonna is herself covered by a black shroud of humanity, though her gold-tinted skin demonstrates the worth of the person within the shroud. The colors used for the Christ child corroborate this and elevate Him in relation to his mother, as he is given no dark-colored garment to attenuate the golden nature represented in the color of his body. In a similar fashion, the Nardo depiction of the Madonna, Peter and John features a stark black background that has the effect of focusing the eyes of the viewer upon the portraits within. Yet, the pictures of Peter and John on either side of the Virgin take on less significance because of a reduction in their sizes and of the contrast between their color and that of the wall in front of which they stand. This has conceptual value in that is denotes that the Madonna and the Christ Child take more precedence than the apostles. The mother and child’s position at the center also highlights this idea. One gets several feelings when one views these two paintings in the gallery. The immensity of the subject and the beauty of the golden and reddish colors give the idea that one is in the presence of highly exalted persons. Yet, one also gets the idea that the persons being viewed (especially in the Giotto painting) are also natural and in the middle of living their lives. With Giotto, the viewer has the sense that he/she witnesses â€Å"a quite drama† in which occurs â€Å"the human interaction between a mother and a child† (National Gallery). In contrast with this, the Nardo portrait gives a more contrived picture which resembles the posing of the two for a portrait. According to interpretation by the Gallery’s art historians, â€Å"Nardo’s Virgin, despite her soft expression, appears removed from human concerns.† The Virgin is, in this picture, aware of being under the scrutiny of others: the Saints Peter and John that flank her on each side, and the artist himself for whom she poses. Works Cited Giotto. Madonna and the Child. (Tempera on Panel). Samuel H. Cress Collection. National   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Gallery of Art. Washington D. C., 1320/1330. Nardo di Cione. Madonna and the Child with Saint Peter and Saint John the Evangelist. Samuel   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   H. Cress Collection. National Gallery of Art. Washington D. C., 1360. National Gallery of Art. â€Å"Byzantine Art and Painting in Italy during the 1200s and 1300s.†   Ã‚  Ã‚  Ã‚  Ã‚   Madonna and the Child. (Giotto.) Samuel H. Cress Collection. National Gallery of Art. Washington D. C., 1320/1330.      

IB Biology Potato Lab

Biology Potato Lab Table 1: Trial Number| Concentration of Sucrose Solution (M)  ±0. 2 ml| Initial Mass of Potato Core Slice(g)  ±0. 1 | Final Mass of Potato Core Slices (g)  ±0. 1| 1| 0. 0| 7. 7| 9. 3| 2| | 6. 0| 8. 1| 3| | 6. 2| 7. 4| 4| | 10. 2| 13. 2| 5| | 8. 7| 10. 3| 6| | 4. 9| 6. 0| 7| | 9. 2| 10. 4| 1| 0. 2| 5. 8| 6. 0| 2| | 11. 6| 12. 1| 3| | 2. 5| 3. 1| 1| 0. 4| 14. 4| 13. 9| 2| | 2. 6| 2. 8| 3| | 8| 6. 5| 1| 0. 6| 7. 3| 5. 3| 2| | 10. 7| 7. 3| 3| | 9. 6| 7. 4| 4| | 2. 9| 2. 8| 1| 0. 8| 5. 6| 3. 6| 2| | 16. 0| 13. 1| 3| | 11. 5| 5. 9| 1| 1. | 7. 9| 5. 4| 2| | 10. 0| 6. 7| 3| | 9. 6| 6. 2| 4| | 4. 7| 3. 2| Table 2: Calculations of Averages Concentration of Sucrose Solution (M)  ±0. 2 ml| Average Initial Mass of Potato Core Slice(g)  ±0. 1 | Average Final Mass of Potato Core Slices (g)  ±0. 1| Change in Mass (g)  ±0. 1| Percentage Change in Mass (%)| Standard Deviation of Initial Mass| Standard Deviation of Final Mass| 0. 0| 7. 6| 9. 2| 1. 6| 22. 3| 1. 9| 2. 4| 0. 2| 6. 6| 7. 1| 0. 5| 6. 5| 4. 6| 4. 6| 0. 4| 8. 3| 7. 7| -0. 6| -7. 2| 5. 9| 5. 7| 0. 6| 7. 6| 5. 7| -1. 9| -25. 2| 3. 5| 2. 2| 0. | 11. 0| 7. 5| -3. 5| -31. 7| 5. 2| 5. 0| 1. 0| 8. 1| 5. 4| -2. 7| -33. 2| 2. 4| 1. 5|Sample Calculations: To find average of initial mass of potato core with 0. 2M solution: # 1 + # 2 + # 3 / 3 5. 8 + 11. 6 +2. 5 / 3 = 6. 6 To find average of final mass of potato core with 1. 0M solution: # 1 + # 2 + # 3 + # 4 / 4 5. 4 + 6. 7 + 6. 2 + 3. 2 / 4 = 5. 4 To find change in mass in 0. 4M solution: Final mass – initial mass = change in mass 7. 7 – 8. 3 = -0. 6 To find percentage change in mass in 0. 6M solution: Final – initial / initial x 100 5. 7 – 7. 6 / 7. x 100 = -25. 2 Figure 1: The effect of sucrose solution on the mass of potato cores Figure 1: In the above graph, it’s visible that with an increasing concentration of sucrose solution there is also a decrease in the percent change in mass. The r? value of 0. 9416 re presents that there is a good relationship in the data between the concentration of sucrose solution and the percent change in mass. The relationship between the data can also be proven by the error bars, representing the standard deviation from the data points and the amount of uncertainty.With the small error bars we know that the data is reliable; although as the last few points overlap this indicates that the data is similar. Conclusion: I found that as the concentration of sucrose increased, the change in mass and percentage of the change in mass decreased. This data did support the hypothesis, as we knew from the term osmosis. Osmosis is the process of diffusion of water molecules from an area of higher concentration to lower concentration. The concentration gradient between the potato and the sucrose solution lead to the amount of molecules coming in and out of the potato.Therefore, the data supports the hypothesis as when the water concentration was lower in the potato than in the sucrose solution, the water molecules moved through the semi-permeable membrane into the potato which caused it to gain weight. With a higher concentration of water in the potato, the result would be the opposite. Hence the prediction that the lower the concentration of sucrose, the higher the final weight of the potato was reinforced. The hypothesis is supported by the evidence of the graph. With a concentration of 0. M sucrose solution the increase in the change of mass was 1. 6g and a percentage change of 22. 3%. In comparison, the 0. 8M sucrose solution had a change in mass of -3. 5g and a loss of 31. 7%. Although in Figure 1 the r? value gives the impression that the data is very reliable, some of the error bars do overlap. While observing the data there are no outliers present, although when inspecting the change in mass the development between the 0. 8M concentration of sucrose and the 1. 0M numbers slightly increase; when accurately they would continue decreasing.This may perhaps be the result of certain potential errors. Evaluation: My results, while mostly concrete, had particular places where a few errors could have occurred; as they diff from the hypothesis that with a higher concentration of glucose there should be a decrease in the change of mass. As our class only had a certain amount of time to complete the lab, each group completed the lab with three different sucrose solutions. At the end of collecting our data, our classes’ results were compiled together to compare.An error is the fact that each group’s statistics came from different potatoes. As different potatoes were used, the pores in the membrane of each potato are different, causing a different amount of water molecules to be able to pass through and into the solution. This could prove the overall data to be unreliable. To fix this deviation, with more time a group can complete their own lab with the full data with a single potato. Another error is the factor of te mperature. Temperature affects osmosis as with a higher temperature the molecules are moving faster, causing osmosis to increase.As we left our beaker s with the potato cores inside the classroom overnight, the classroom temperature may have increased or decreased which would affect the rate of osmosis inside the beaker. Due to the fact that it’s September, we can assume that the classroom temperature would decrease overnight; including the consequences that perhaps a window or door would have been left open. As the temperature in the classroom decreased, the rate of osmosis did as well. To fix this normal variation error, the temperature of the classroom could be recorded as we placed the beakers around the classroom to be left.Overnight it would be made sure that no windows or doors are left open, and that the temperature stays the same throughout the experiment. A systematic error has to do with the scales that were used. The scales were a necessity for this lab; itâ€℠¢s important that they’re working correctly. While planning for this lab not at one point were the scales that we were using checked to make sure that they were fully functioning. This could establish the scale giving off false numbers which changes our entire experiment. At the beginning before proceeding with the lab it must be made sure that the equipment is regularly checked and operative.To do so, we can take an object that we can identify the weight of, and test it on the scale to make sure it’s correct. As an extension to this investigation, it could be completed again but testing osmosis with more of a variety of the amount of sucrose solution- it could exceed a concentration of 1M to extend to 2M. This experiment could also be completed using different time frames; instead of letting the potatoes rest for one day they could be let stand for one hour, or two hours to test how osmosis works within this shorter time frame.To fix our errors stated above, we must f irst make sure that all of our equipment is running properly and that the temperature of the room does not vary overnight. Bibliography: Diffusion and osmosis. (n. d. ). Retrieved from http://hyperphysics. phy-astr. gsu. edu/hbase/kinetic/diffus. html McGraw-Hill. (2006). How osmosis works. Retrieved from http://highered. mcgraw-hill. com/sites/0072495855/student_view0/chapter2/animation__how_osmosis_works. html

buy custom The Book Dangerous Exits essay

buy custom The Book Dangerous Exits essay The book Dangerous Exits: Escaping Abusive Relationships in Rural America is a very important book which deals with the terror faced by many women in rural America in their own homes and the book itself is a very valuable contribution to the Violence Against Women issues by addressing the three common areas which are found in gender-based violence, namely divorce/separation violence, the general experiences of the rural women, and sexual violence like the intimate partner sexual violence. The book was written by DeKeseredy Walter a criminology professor in UOIT (University of Ontario Institute of Technology), Martin Schwartz a sociologist professor, and Joseph Donnermeyer in 2009. This books target audience are criminologists, women scholars and students, activists, practitioners and policy makers. The stated goals of the authors of the book was to shatter all the myths about rural American women, for example, that they live in idyll of home and hearth. Other goal was to reveal the analytic understanding of the dangers that women face as they are abused. Social and geographic isolation deteriorates situation and it is a common characteristics of the many American rural communities. Description Violence against women has been widely spreading in rural America for many decades and has gained a lot of attention from the policy makers, scholars, and general public. Social scientists have made a great contribution to the theoretical understanding as they focused attention on the women victimization. Because of sexual abuse, women are willing to leave behind their hostile and abusive partners. The rural communities are the worst hit with the most cases of victimization of women. Dangerous Exits is a qualitative study which examines the psychological, physical, and sexual violence experienced by the American rural women in a process of leaving the abusive intimate partners. Some of these stories are very touching, heart breaking, insightful, eloquent, sad, and uplifting. The women shared their stories about their abusive partners and how it was dangerous to quit the abusive relationships. This book fits within the context of other related material which is covered in this course. The main reason for this is because the book is a very good companion to a graduate course level or an upper undergraduate level student. The book tries to identify all the hidden crimes of psychological mistreatment of women, economic blackmail crimes, and the relationships which exist between abuse and patriarchy (p. 25). The authors of the book have tried to give voice to the women who have suffered terribly in silence and also tried to find effective solutions as to how these assaults and abuses of the wmen can be stopped and avoided. Analysis The book attempts to answer the question Does Dangerous Exits contributes to building a clear model for the interaction of patriarchal control, sexual abuse, and community complicity in rural areas? The main objectives of this book were addressing the complexities and the risk factors which are associated with the separation and divorce. The author of the book used the feminist methodology to achieve his objectives. He was able to highlight the area which was in most cases under-researched and an area which was neglected for a very long time concerning the battered women who were living in the rural areas and how they were able to stop the abusive relationships. The author acknowledged the global problem and the risk factors which were associated with separation and the divorce in 3 Ohio rural communities. He brought out a case of 43 women who were in the abusive relationships or marriage by leaving the abusive husband or abusive male partner. The information about these women helped in bringing out the foci of the book. The authors created screen questions by the development of structured interview schedules which were aimed at obtaining the representative samples and they used multitude methods to solicit women from participation. After collecting all the data that was required in the study, the authors presented the information in a summary of tables which compared the nonsexual abuse and the separation and divorce sexual abuse (pp. 62-63). The important questions that the book raised are: What drives men to become abusive? Should men be in charge of and control domestic household settings? How can you reduce the incidence of separation and divorce sexual assault in the rural areas? Appraisal This book contributed to understanding of the rural American society and it deserves a very special place in the new scholarship on rural crime since it calls for an immediate action and pushes for a policy change. The book has also made a very valuable contribution to the Violence Against Women by covering the separation and divorce violence, the experiences that these rural women undergo, and sexual violence in general. This book attempts to resolve problems and issues which are related to separation and divorce sexual abuse in rural America. The rural America has been very notorious for sexual abuse committed by the men. In most of the cases abusers are people with low level of education and deeply religious who always think that the woman should obey her husbaand in all situations without any questions. This caused women abuse. The unemployment rate in the rural America is also very high. That is why most of the women and men have to spend time at homes. Monotonous work and lack of money lead to frustration which all too often results in women abuse. The weakest point of the book is the final chapter where the authors committed to the collaborative feminist research interviewed the heroes on how the incidence of the assault could be prevented. The story of the woman who was abused in front of the neighbor who did nothing to help her is very discouraging to the reader (p. 11). The reader would thinkg that there are no ways to stop the violence and it can be very discouraging if the reader is a woman who has been a victim of such violence. This shows that there are no rules and regulations to stop these sexual violence and abuses. The strongest point of this book is that it includes real stories told bywomen from the rural Ohio community in America. The book includes the views of women victims of the separation and divorce sexual assault and the authors were able to write the stories of how they were abused and how they stopped this sexual assault. This book gives the women who have been victims of sexual violence commited by the men whom they were married to or lived with a new hope. This is vivdly seen in the story of the woman who was asked of how she thought about her experiences as a victim. She was very courageous and had a will to buid her life vowing that no man was going to stop her in accomplishing her dreams since she would rather cut off his hand than refuse from her dreams (p. 83). This shows that the book can enable the victims to live a new life, be courageous and strong after leaving the abusive partners. It is a source of inspiration to the women victims. The questions and concerns that the author of the book raised in my mind is that it is very possible to quit an abusive life from an abusive husband or abusive partners as it is the case in very many rural communities in America. According to the study which was carried out by DeKeseredy and Shwartz, the main reason why the separation and divorce sexual assault rate is very high in the rural areas is that most of the victims were poor and lived in poverty stricken areas with numerous cases of illiteracy, which explained why the women were abused by their partners. On my opinion, there is the need for future research to be conducted in this area. The reason why I think so is that DeKeseredys and Shwartzs ideas which are about the culture of the male peer support for the assaults and the abuse should be fleshed out to develop a set of policy proposals which are more robust and which are grounded on the rural life realities. Buy custom The Book Dangerous Exits essay

Hamlet Themes and Literary Devices

Hamlet Themes and Literary Devices William Shakespeares Hamlet is considered of the most thematically-rich works of literature in the English language. The tragic play, which follows Prince Hamlet as he decides whether to revenge his fathers death by murdering his uncle, includes themes of appearance vs. reality, revenge, action vs. inaction, and the nature of death and the afterlife. Appearance vs. Reality Appearance versus reality is a recurrent theme within Shakespeare’s plays, which often question the boundary between actors and people. At the beginning of Hamlet, Hamlet finds himself questioning how much he can trust the ghostly apparition. Is it really the ghost of his father, or is it an evil spirit meant to lead him into murderous sin? The uncertainty remains central to the narrative throughout the play, as the ghosts statements determine much of the narrative’s action. Hamlet’s madness blurs the line between appearance and reality. In Act I, Hamlet clearly states that he plans to feign madness. However, over the course of the play, it becomes less and less clear that he is only pretending to be mad. Perhaps the best example of this confusion takes place in Act III, when Hamlet spurns Ophelia leaving her utterly confused about the state of his affection for her. In this scene, Shakespeare brilliantly reflects the confusion in his choice of language. As Hamlet tells Ophelia to â€Å"get thee to a nunnery,† an Elizabethan audience would hear a pun on â€Å"nunnery† as a place of piety and chastity as well as the contemporary slang term â€Å"nunnery† for brothel. This collapse of opposites reflects not only the confused state of Hamlet’s mind, but also Ophelia’s (and our own) inability to interpret him correctly. This moment echoes the broader theme of the impossibility of interpreting reality, which in turn l eads to Hamlets struggle with revenge and inaction. Literary Device: Play-Within-a-Play The theme of appearance versus reality is reflected in the Shakespearean trope of the play-within-a-play. (Consider the often-quoted â€Å"all the world’s a stage† remarks in Shakespeare’s As You Like It.) As the audience watches the actors of the play Hamlet watching a play (here, The Murder of Gonzago), it is suggested that they zoom out and consider the ways in which they themselves might be upon a stage. For example, within the play, Claudius’s lies and diplomacy are clearly simple pretense, as is Hamlet’s feigning madness. But is not Ophelia’s innocent acquiescence to her father’s demand that she stop seeing Hamlet another pretense, as she clearly does not want to spurn her lover? Shakespeare is thus preoccupied with the ways we are actors in our everyday life, even when we don’t mean to be. Revenge and Action vs. Inaction Revenge is the catalyst for action in Hamlet. After all, it is the ghost’s injunction to Hamlet to seek revenge for his death that forces Hamlet into action (or inaction, as the case may be). However, Hamlet is no simple drama of vengeance. Instead, Hamlet continually puts off the revenge he is supposed to seize. He even considers his own suicide instead of killing Claudius; however, the question of the afterlife, and whether he would be punished for taking his own life, stays his hand. Similarly, when Claudius decides he must have Hamlet killed off, Claudius sends the prince to England with a note to have him executed, rather than doing the deed himself. In direct contrast to the inaction of Hamlet and Claudius is the forceful action of Laertes. As soon as he hears of his father’s murder, Laertes returns to Denmark, ready to wreak revenge on those responsible. It is only through careful and clever diplomacy that Claudius manages to convince the enraged Laertes that Hamlet is at fault for the murder. Of course, at the end of the play, everyone is revenged: Hamlet’s father, as Claudius dies; Polonius and Ophelia, as Laertes kills Hamlet; Hamlet himself, as he kills Laertes; even Gertrude, for her adultery, is killed drinking from the poisoned goblet. In addition, Prince Fortinbras of Norway, who was searching for revenge for his father’s death at Denmark’s hands, enters to find most of the offending royal family killed. But perhaps this fatally interlocking network has a more sobering message: namely, the destructive consequences of a society that values vengeance. Death, Guilt, and the Afterlife From the very beginning of the play, the question of death looms. The ghost of Hamlet’s father makes the audience wonder about the religious forces at work within the play. Does the ghost’s appearance mean Hamlet’s father is in heaven, or hell? Hamlet struggles with the question of the afterlife. He wonders whether, if he kills Claudius, he will end up in hell himself. Particularly given his lack of trust in the ghost’s words, Hamlet wonders if Claudius is even as guilty as the ghost says. Hamlets desire to prove Claudiuss guilt beyond all doubt results in much of the action in the play, including the play-within-a-play he commissions. Even when Hamlet comes close to killing Claudius, raising his sword to murder the oblivious Claudius in church, he pauses with the question of the afterlife in mind: if he kills Claudius while he is praying, does that mean Claudius will go to heaven? (Notably, in this scene, the audience has just witnessed the difficulty Claudius faces in being able to pray, his own heart burdened by guilt.) Suicide is another aspect of this theme. Hamlet takes place in era when the prevailing Christian belief asserted that suicide would damn its victim to hell. Yet Ophelia, who is considered to have died by suicide, is buried in hallowed ground. Indeed, her final appearance onstage, singing simple songs and distributing flowers, seems to indicate her innocence- a stark contrast with the allegedly sinful nature of her death. Hamlet grapples with the question of suicide in his famous to be, or not to be soliloquy. In thus considering suicide, Hamlet finds that â€Å"the dread of something after death† gives him pause. This theme is echoed by the skulls Hamlet encounters in one of the final scenes; he is amazed by the anonymity of each skull, unable to recognize even that of his favorite jester Yorick. Thus, Shakespeare presents Hamlet’s struggle to understand the mystery of death, which divides us from even seemingly the most fundamental aspects of our identity.

Slavery Comes to the American Colonies From 1492-1750 Essay

Slavery Comes to the American Colonies From 1492-1750 - Essay Example Development in the South American colonies and the West Indies were retarded due to the control and dominance by the Spaniards. There was also a drift towards an economy based on agriculture. These two factors contributed to the development of slave-holding societies in the American colonies. In the initial stages local natives were use in the development of commercial agriculture, but the local natives were not able to withstand the heavy workload they were expected to perform and withered away. The decimation of the local communities had the benefit of providing even more land for commercial agricultural production. The lack of local natives for slave labor and the added land available for agricultural production cause the induction of the hardy African Negroes into these lands, as slaves to work on commercial agricultural production sites. (Hinton, K.V., 2005). The use of African Negroes as slaves in the American colony started when King Charles V of Spain granted a license for bringing four thousand African Negroes into the West Indies as slaves. From then on the American colonies were to witness the growth of slavery. The English involvement in trade and use of slaves started in 1562, and subsequent to the revolution in 1688 trading and use by the British was to flourish. With the royalty involved in the slave trade its growth was only enhanced. An English company was formed in 1713 with Queen Anne of England holding a quarter share, and King Philip V of Spain another quarter. This company was given the privilege of supplying 144,000 Negro slaves to the Spanish American colonies for a period of thirty years, and is an indication of the growth in slave trade and the use of slaves in the American colonies. The spread of the use of Negro slaves into the United States of America was a natural extension of the wide use