Saturday, November 30, 2019
Why go to college free essay sample
Is education important? Many people have been asking themselves this same question for years. With the unemployment rates at an all-time high, many people have decided to go back to school to pursue an education that can better their financial situation. According to the Baum, the unemployment rate is at 7. 3%. Therefore, Americans wonder if going back to school is worth it. Just 5 percent of the public says students get excellent value for the money they spend on college (Adams). So, how does one decide if a college degree is worth the time and money? It all comes down to what we gain from getting that college degree and college experience. Statistics show that a college education is the best investment one can make for them. Education is important for many reasons some of which is higher income, more job opportunities, and a healthier lifestyle. Adam, Michelle1. Is College Worth It? . Education Digest 77. We will write a custom essay sample on Why go to college or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page 6 (2012): 58-61. Education Full Text (H. W. Wilson). Web. 12 Feb. 2014. This is a reprint of the article Is College Worth It? , by Michelle Adam. In this article Adam focuses on the Hispanic populationââ¬â¢s outlook on higher education. Adam talks about how Hispanic people have changed their mind on the benefit of a college degree. In her article she talks about the importance of going back to school influences the income of the students. She uses statistics to show the differences between Hispanic student that follow a college path and the ones that do not in regards to their income categories. She is passionate in her writing and makes it really interesting to read due to the easy to read wording. This article really opened my mind into new ideas from different perspectives in the way that I see education. I have always thought highly of a college education but after seen the statistics and how much of a difference there is in the income I further see the value in a college education. Baum, Sandy. trends. collegeboard. org. Education Pays 2013:The Benefits of Higher Education for Individuals and Society. N. p. , 01 01 2013. Web. 12 Feb 2014. . The authors in this report breakdown in details how a college degree is important, Ms. Baum uses statistical charts to how income increases with education, she also shows how education has gone up in price showing charts from earlier years to now, but with that being said Baum also talks about how it still is worth a little debt for all the positives that come from a college education. I found this article very helpful because of all the illustrative pictures in it. This article shows differences in the earnings and employment patterns of U. S. adults with different levels of education. It also compares health-related behaviors, reliance on public assistance programs, civic participation, and indicators of the well-being of the next generation. This article really on outcomes compared with levels of educational attainment, they believe that it is important to be cautious about attributing all of the differences observed to causation. Ms. Baum proved every point with statistics and facts which make this a very interesting article to read. Barton, Paul. ââ¬Å"Why Go To College?. Wilson Quarterly 32. 2 (2008): 74. Education Full Text (H. W. Wilson). Web. 12 Feb. 2014. Mr. Bartons article talks about ââ¬Å"How Many College Graduates Does the U. S. Labor Force Really need? â⬠which appeared in the January to February 2008 issue of Change. Barton asks whether more college graduates are necessary for the U. S. to prosper. His answer is not clear because the occupations that are expanding most do not require a degree, whereas the areas that do are not adding large numbers of new jobs. Mr. Barton in heââ¬â¢s article talks more about how a college education is not necessary in order to achieve success. The author compares different topics and an idea backing up his theory yet my paper is the opposite I used Mr. Bartonââ¬â¢s article to supplement certain facts that I stated in my paper. Mr. Barton is a well-known, he discusses in many ways how the jobs that do require a college degree are not making too many offering when on the contrary the ones that donââ¬â¢t require a college degree are always hiring and multiplying job opportunities. Levey, Tania. The Effect Of Level Of College Entry On Midcareer Occupational Attainments. Community College Review 38. 1 (2010): 3-30. Education Full Text (H. W. Wilson). Web. 12 Feb. 2014. The article discusses the economic benefits of attending community colleges, compared to other higher education ways, as other issues through intense debates since the 1960s. In the article Levey talk about using the 1979 cohort of the National Longitudinal Survey of Youth (NLSY79), this study compares the midcareer occupational. In the study participants were between 14 and 22 years of age in 1979; income and occupational prestige data used in the analyses were the latest available for the respondents from the 1996, 1998, and 2000 waves of the NLSY79 study. In this article I have learned a lot about how the education affects the students in positive ways. Levey uses statistical chart to back up what she states in her writing. Overall, education leads to higher income, and a higher quality of life. Since people spend most of their lives working, it makes sense that how they feel about their work can greatly affect them. People with a higher level of education are more satisfied in their jobs than people who only have a high school diploma. Any way one sees it even if students were to come out with some kind of debt, the quality of the person that they end up becoming is well worth it. Success is defined as the achievement of ones ideal or goal and so what better goal to achieve then that of a college degree may that be doctor or school professor. The value of a college degree cannot be weigh with a scale for the benefits of it surpasses any mark that can be put on it. With all the facts stated one can see how a college degree can be a positive to oneââ¬â¢s life. Ranging from better health, more job opportunities and a lot almost the triple of an income increase from an average high school graduate, it is necessary that more Americans take advantage of the benefits of a college degree.
Monday, November 25, 2019
Bio Camp study giude essays
Bio Camp study giude essays 1. Exchange with the environment occurs as dissolved substances diffuse across the plasma membranes between the cells and their aqueous surroundings. For animals with complex internal organization and relatively small surface to area volume ratio, internal surfaces are specialized for exchange with the environment. Folding or branching gives these moist internal membranes expansive surface area. Materials are shuttled between all these exchange surfaces by the circulatory system. 2. Interstitial fluid fills the space between the cells of the internal environment of vertebrates. This fluid exchanges nutrients and wastes with the blood contained in microscopic vessels called capillaries. 3. Homeostasis The steady-state physiological condition of the body. 4. Negative feedback is a mechanism of homeostasis, whereby a change in a physiological variable that is being monitored triggers a response that counteracts the initial fluctuation. It prevents small changes from becoming too large. An example is a thermometer detecting a temperature above the set point and the thermostat switching the heater off. Positive feedback involves a change in some variable that triggers mechanisms that amplify rather than reverse the change. During childbirth, the pressure of the babys head against sensors near the opening of the uterus stimulates uterine contractions, which cause greater pressure against the uttering opening, heightening the contractions, which causes still greater pressure. 5. Suspension feeders are mostly aquatic animals that sift small food particles from the water. Substrate-feeders, such as leaf miners, live in or on their food source, eating their way through the food. Fluid-feeders make their living by sucking nutrient-rich fluids from a living host. Bulk-feeders eat relatively large pieces of food by either killing their prey or tearing off pieces of meat or vegetation by us ...
Friday, November 22, 2019
Alaska Airlines Flight Human Factors
Alaska Airlines Flight Human Factors The term human factors can be defined as anything to do with humans. In aviation maintenance human conditions like stress, illness, complacency are important because if these factors are not taken care of can lead to fatal accidents. Human factors in aviation industry have become more significant as over the time it has been realized that in most airborne accidents, human error is the main reason rather than mechanical failure. Human Factors are too broad a definition for our understanding of its application in aircraft maintenance. It focuses on a wide range of challenges faced by any human in his/her day to day personal or professional life and when combined how they can lead to human errors and ultimately to a fatal accident. This report is the case study of one such incident, Alaska Airlines Flight 261, a McDonnell Douglas MD 83, which crashed into Pacific Ocean near Anacapa Island, California killing all 88 people on board. The National Transportation Safety Board (NTSB) determ ines that the probable cause of this accident was a loss of airplane pitch control resulting from the in-flight failure of the horizontal stabilizer trim system jackscrew assemblyââ¬â¢s acme nut threads. The thread failure was caused by excessive wear resulting from Alaska Airlineââ¬â¢s insufficient lubrication of the jackscrew assembly (NTSB (2003). Loss of Control and Impact with Pacific Ocean Alaska Airlines Flight 261. WASHINDTON, DC: NTSB. 180.) After going through the accident and studying all the possible causes of this fatal accident it has been observed that it was the chain of events that led to one error after the other. The Cheese Error Model is used for analysis to explain the causes. C:UsersYashikaDesktopswisscheese2.gif Fig 1 (http://www.aviation.unsw.edu.au/about/articles/swisscheese.html) SYNOPSIS According to NTSB report 2003, ââ¬Å"on January 31, 2000, about 1621 Pacific standard time, Alaska Airlines flight 261, a McDonnell Douglas MD-83, N963AS, crashed i nto the Pacific Ocean about 2.7 miles north of Anacapa Island, California. The 2 pilots, 3 cabin crewmembers, and 83 passengers on board were killed, and the airplane was destroyed by impact forces. Flight 261 was operating as a scheduled international passenger flight under the provisions of 14 Code of Federal Regulations Part 121 from Lic Gustavo Diaz Ordaz International Airport, Puerto Vallarta, Mexico, to Seattle-Tacoma International Airport, Seattle, Washington, with an intermediate stop planned at San Francisco International Airport, San Francisco, California. Visual meteorological conditions prevailed for the flight, which operated on an instrument flight rules flight plan.â⬠(NTSB. (2003). HISTORY OF FLIGHT. In: NTSB Loss of Control and Impact with Pacific Ocean, Alaska Airlines Flight 261. WASHINDTON, DC: NTSB. 1.) PROBABLE CAUSE The National Transportation Safety Board carried out an intense investigation to find out what brought the flight 261 down and founded many r easons responsible for this accident. The NTSB report considered the main reason as the loss of airplane pitch control due to the in-flight failure of the horizontal stabilizer trim system jackscrew assemblyââ¬â¢s acme nut threads. The thread failed because of excessive wear resulting from Alaska Airlines insufficient lubrication of the jackscrew assembly. NTSB reports also mentions about the design flaw of McDonnell Douglas MD-80 as it didnââ¬â¢t have fail safe mechanism to prevent the disastrous effects of failure of acme nut threads.
Wednesday, November 20, 2019
Sociology - Written Review (1000 words) - PREMIUM WRITER NEEDED MAJOR Essay
Sociology - Written Review (1000 words) - PREMIUM WRITER NEEDED MAJOR IN SOCIOLOGY - Essay Example l personage who offers them his intentions, his sentiments, rather than his acts, far their consumption.â⬠(1977: p 261) He also emphasises on the nature of and need for the intimate relationships among the individuals by making a comparison of present-day intimate socio-cultural relations with those of the past. The writer vehemently sustains the very fact that the modern man takes intimacy as the ethically beneficial act, a source of personality development and the way to overcome social evils from the environment. This type of philosophy and the desire for solving the individual problems through moral values may put the very meanings of intimacy in serious jeopardy. ââ¬Å"This ideology of intimacyâ⬠, Sennett declares, ââ¬Å"defines the humanitarian spirit of a society without gods: warmth in our god.â⬠(1977: p 259) The feelings of alienation in the past have given birth to the present day intimacy. The writer is of the opinion that reckoning the past memories brings disappointment and remorse, and pushes man to perform something wrong in utter remorse; but it should not be the only mania to be recollected from the past; rather, a comparative analysis of the olden days is highly supportive in detecting the quintessence of customs, norms, mores and traditions prevailing in the contemporary times. In addition, such analyses facilitate the individuals alter their life style accordingly, as the distances between the individuals have left indelible imprints on them on the one hand, and have made them learn how to go closer to family, friends and relations on the other. ââ¬Å"The pastâ⬠, Sennett views, ââ¬Å"built a hidden desire of stability in the overt desire for closeness between human beings.â⬠(1977: pp 259-260) The people witnessed inadequate approach towards interaction even with the close relations during 18th and 19th centuries, particularly during the last deca des of the Victorian Era, which brought untoward modifications in socio-cultural unit. Hence, people
Tuesday, November 19, 2019
USABILITY TESTING AND IMPLEMENTATION SLP 5 Essay
USABILITY TESTING AND IMPLEMENTATION SLP 5 - Essay Example The websiteââ¬â¢s navigation ease is also very important. This tool deals with the organization of the website, availability of search boxes and links, to assist in finding the appropriate webpages and the speed of accessing the webpages. Additional tools include the siteââ¬â¢s accessibility which deals with its semantic HTML composition, choice of color and its cross platform compatibility. Website speed is critical to the process of usability and is measured through analyzing the websiteââ¬â¢s response time and its file size. The last tool is user experience and it deals with analyzing the websiteââ¬â¢s usefulness, enjoyment and fulfilment. Usability.gov rates highly in terms of task analysis. For users of the website, it is very informative since it provides information on visual design content, strategy and its simple web page outlay, leaves a lasting impression on the users. Additionally, the information conveyed is easy to read. The site can be used by any person due to the simple language used to convey specific information. It is also very easy to access information due to the presence of the search box at the edge of the websiteââ¬â¢s screen. In terms of the color choice of the webpage, the use of multiple color combinations gives the website a memorable and upbeat outlay that entices the user to revisit the website. Transparencynow.com also offers varying information ranging from comedies, art and film. It rates considerably high in the readability feature since the words are legible with a sizeable font coupled with pictures that help in conveying the information to the user. However, the organizational outlay of the website is not correctly structured and would benefit from a simpler organization with links to different features. Its choice of color is relatively dull but the application of images considerably improves its presentation. The website
Saturday, November 16, 2019
African American Religion Essay Example for Free
African American Religion Essay Before Africans were brought to America during the slave trade, they had their own culture and society. They had their own language and dance. They also had their own religion. History tells us that the Europeans justified their abuse toward the Africans as helping them become more civilized because the Africans lifestyle appeared primal to them and not as developed and industrialized as theirs. What is often overlooked is that even though Africans were taken from Africa and Americanized and have been stripped of their religion, culture, language and even their name, the very essence of the African as a people did not go away. Some African American slaves rejected Christianityââ¬â¢s religion because they saw it as the ââ¬Å"white manââ¬â¢s religionâ⬠. History tells us American Slave Masters abused the Africans by whipping them like animals and by treating them inhumane. The fact that these slave masters wanted the African American to worship their god was unacceptable for some because they could not fathom why they should worship a god who allowed people to be so badly treated. Some Africans accepted Christianityââ¬â¢s religion and faith by identifying with Jesus Christ, the son of God who according to the Bible was innocent of sin and yet he was beaten, bruised and crucified for the sins of the world. Some African Americans wanted to remain faithful to their heritage yet did not agree with the conjure practices. Seth Hollyââ¬â¢s character is a good example of conforming to the economic prosperity of America which was founded by Christians. White Christians enforced Christian beliefs, values, and some practices based on the Euro American Christian interpretation of Christian text. Seth developed a kind of hatred for his own people proving that he has adopted the practices of white America in the early 1900s. ââ¬Å"Niggers coming up here from that old backwoodsâ⬠¦ coming up here from the country carrying Bibles and guitars looking for freedom. â⬠Seth says. ââ¬Å"They got a rude awakeningâ⬠(6). Seth signifies the African American who resents assimilation to the white American culture. But, at the same time, he too attempts to connect with his heritage by simply allowing Bynum to live in his home and bless it with his conjures rituals. Seth also participates in an African dance ritual called the Juba. Bynumââ¬â¢s character is introduced by practicing conjure rituals. He cuts open pigeons and spreads its blood onto him as a type of cleansing to communicate with spirits. Bynum represents the African American who chose to remain faithful to the religion of his heritage. Others who have chosen the faith of Christianity view conjure rituals as evil, witchcraft, or demonic. Some African Americans wanted to remain faithful to their heritage yet did not agree with conjure practices anymore. Loomis walks in on the juba dance and goes into a trance after dinner at the boarding house. He had a vision of skeletons emerge from a body of water. ââ¬Å"Loomis: I done seen bones rise up out the water. Rise up and walk across the water. Bones walking on top of the waterâ⬠(53). Loomis recognizes through the vision, his state of ignorance to the knowledge that will lead him to the new way of thinking. Bynum serves as a supporting character reacting to Loomisââ¬â¢s trance. ââ¬Å"Bynum: They walking around here now. Mens. Just like you and me. Come right up out the waterâ⬠(56). Loomisââ¬â¢s trance and Bynumââ¬â¢s interpretation of it is a turning point in the story. The skeletons coming from the bottom of the sea in Loomisââ¬â¢s vision represent the slave ships, the disorientation experienced by the slaves during emancipation, and the confusion of his release from Joe Turner. Both Loomis and Bynum have tapped into their ancestral religion. The difference between the two is that Bynum represents the African who never renounced his religion and Loomis is the African-American who turned from conjure religion and converted to the faith of Christianity. After Joe turner took his life away from him, Loomis questioned his Christian faith and his identity. By walking in on the ancestral ritual of the Juba dance, Loomis literally walked into what he had actually been looking for, his religion, consequently, his ancestral identity and this is why he fell into the trance. Throughout the play conjures is encompasses four generations; Bynumââ¬â¢s father, Bynum, Loomis, and the neighbor boy Reuben. Reubenââ¬â¢s vision is of Sethââ¬â¢s mother by the pigeon coop, she encourages Reuben to release the caged pigeons. Wilson writes in a way that leads the reader to believe that Loomis needs to find his missing wife. Martha Pentecost is not the one who was lost; Loomis was the one who was lost, wondering around from town to town, searching. Loomis came into the state of belief when Bynum helped him translate his vision. That vision represented Loomis going back to his ancestral conjure religion. Loomis needed to find Martha Pentecost simply to say good-bye to her and their life former together. Up until this point of the story, I believed that Loomis needed to find his wife so they could live out the rest of their lives as a happy free family with their daughter. However, it is made pretty obvious this was never Loomisââ¬â¢s intentions. ââ¬Å"That goodbye kept me out on the road searching,â⬠Loomis says, ââ¬Å"now that I see your face I can say my goodbye and make my own worldâ⬠(90). Martha Pentecost, a woman of Christian faith, represents the African who assimilated into white Americaââ¬â¢s culture and Loomis needed to find her to say good-bye to her and the Christian faith. Martha stands by her Christian faith by accusing Loomis ââ¬Å"you done gone over to the devilâ⬠(91). White manââ¬â¢s religion believed that conjure was evil or the way of the devil. Loomis finds it easier to reject her for her Christian beliefs. ââ¬Å"Loomis: Great big old white manâ⬠¦your Mr. Jesus Christ. Standing there with a whip in one hand and a tote board in another, them niggers swimming in a sea of cottonâ⬠(92). Loomis proves with his statement, his version of a bible story that differed from other African Americans but was similar to that of the white man who believed that they were on a level below God and the Africanââ¬â¢s were beneath them, Africanââ¬â¢s were one third of a person. Loomis now believes that if Africanââ¬â¢s are going to be free then they have to take charge of their own destiny. Martha Pentecost represents the African Americanââ¬â¢s religion, she identifies that Loomis needs to ââ¬Å"be washed in the blood of the lambâ⬠(92) and ââ¬Å"you done gone over to the devil. (91) Through class lessons I learned that African American slaves compared themselves with stories in the bible to instill hope of a life free from oppression, violence, and bondage. Jesus according to the bible was innocent of sin and yet he was beaten, bruised and crucified for the sins of the world. The hope of reigning in heave with Jesus is considered the ultimate reward for suffering lifeââ¬â¢s trials and tribulations. It is the faith of the African Americans who accepted Christianity religion. Blacks trusted in the Lord instead of man. America was Egypt in the exodus story and as long as the enslaving and oppressing took place America would face the same wrath as Egypt. ââ¬Å"Stand still and see the salvation of the Lord. â⬠The bible was depended on in justifying and motivation rebellion for the blacks and used as a tool to keep blacks enslaved by the whites. African Americans used sermons, song, and prayer to convey and teach their message of travail and triumph of Israel. Some African Americans could not get past the treatment from the white people that called themselves Christians and as a result they rejected Christianity. Seligââ¬â¢s role suggests that the link between characters is the acquisition of material goods. Selig admits that his ancestors have always made their living pursuing African Americas; his great grandfather transported slaves from Africa, his father captured runaway slaves and returned them to their masters for a reward, and Selig locates displaced people for a fee. Selig attains his ecstasy through consumer capitalism, through the selling of material goods. African Americans are objects for exploitation and exchange in the new economy. He binds African Americans to the economic system, demanding payment of his services and products which necessitates subsistence labor by taking them from one construction site or work site to another, similar to a temporary employment agency today. You pay for an employee to work for some time, but Selig is getting paid by the person looking for work or a ride to a chance of freedom. Selig cannot find a person that has not purchased a dustpan from him because he keeps the names of his customers. Seth is determined to achieve material success, he has very little patience for African Americans migrating north looking for the same prosperity that he desires. Seth is very demanding of his patrons, insisting on advance payment in full, and is preoccupied with maintaining a respectable house. ââ¬Å"Itââ¬â¢s hard enough now without all that ignorant kind of acting. Ever since slavery got over with there ainââ¬â¢t been nothing but foolish-acting niggers. Word get out they need men to work in the mill and put in these roadsâ⬠¦ and niggers drop everything and head north looking for freedom. â⬠(5, 6) Seth wants to blend in with the white manââ¬â¢s world; therefore he keeps a link with Selig by negotiating the manufacturing and sale of dustpans. Seth does not have any idea of what it would be like to be a slave, as he was born free in the North and was educated. He demonstrates his education with his math calculation when dealing with the boarding house patrons and the quick notation of him letting Selig know that he is trying to overcharge him for the dust pan materials. Educational differences played a role in tension with Southern blacks, most of who were forbidden from learning to read, saw religion as a matter of oral tradition and immediate experience and emotion. Northerner blacks, stressed that one could not truly be Christian unless they was able to read the Bible and understand it. This play denies individual worth and identity for some of Wilsonââ¬â¢s characters. To be defrauded of the products of oneââ¬â¢s labor or to see that creation diminished, like with Jeremy and the guitar contest, is to be denied a reflection of individual worth and identity. If people have been separated from this truth of individual worth and identity through oppression their capacity to bond with one another, form friendships, or couples, families are undermined. Social alienation in Wilsonââ¬â¢s characters are expressed in their stores of broken relationships, uncertainty, or suspicion that they feel toward one another. ââ¬Å"Seth: Something ainââ¬â¢t setting right with that fellow, Bynum. Heââ¬â¢s one of them mean-looking niggers look like he done killed somebody gambling over a quarter. â⬠(20) Connection between oppression, alienation from self and inability to form bonds with others is displayed in the character of Loomis. Joe Turnerââ¬â¢s ability to oppress Loomis carried a judgment of non-worth. ââ¬Å"Loomis: He told me I was worthless. Worthless is something you throw away. Something you donââ¬â¢t bother withâ⬠(73) Turners judgment of worthlessness forced Loomis to accept the reality of the white manââ¬â¢s power; he was marked as ââ¬Å"one of Joe Turners niggers and forced to forget his song. â⬠(71) Being alienated from himself and displaced with his relation to the world, Loomis is unable to establish bonds with people around him. The oppression encountered by Wilsonââ¬â¢s characters is material or economic, that oppression is spiritual as well in the capacity to deprive the individual of a sense of himself or his unique song. The reawakening of Loomis after his encounter with cultural wisdom is not the self discovery of an average African American but creation of a new source of cultural wisdom, a new African holy man. Wilson uses many metaphors throughout the play. The song is a metaphor for Loomisââ¬â¢s identity and the African American cultural identity. Music is a large part of African American identity, so it makes since that in search of oneââ¬â¢s identity they are searching for their song. The boarding house serves as an inn for traveling folk, but the tenants actually receive a form of healing during their stay. Tenants get direction and guidance from Bertha and Bynum. The shiny man that Bynum is in search for signifies African American independence. The man that Bynum met on the road was an independent African American, just as Loomis was freed by his past when he cleansed himself in his own blood. ââ¬Å"Bynum: Herald Loomis, you shining! You shining like new money! â⬠(94) Loomis has dismissed that the blood of Christ can wash away his sins and make him the man he used to be, but by washing himself in his own blood he has sacrificed the old life to begin his new journey on his terms. Bynumââ¬â¢s shining man has been found, meaning his work is complete; he has passed his powers on to the next generation, Loomis. ââ¬Å"They tell me Joe Turnerââ¬â¢s come and Goneâ⬠is a song that is sung by Bynum, when I first read the story I thought that the meaning was came and now he is dead however, the second time I read the play I realized that it meant that Joe Turner has come and snatched the men and now he is now gone. August Wilson uses symbolism in the play as a very important part in conveying the meaning of the story. Wilsons use of symbolism is demonstrated through Mr. Wilsons use of the road, Martha Pentecost, and Herald Loomis. Symbolic importance is give to the word freedom. The word freedom has instilled hope into the lives of African Americans: during slavery, hope for the release from bondage; after emancipation, the right to be educated, employed, and to move about freely; twentieth century, social, political, and economic justice. Freedom has always stood for the absence of any restraint, because God made all men from his image. There are a number of characters that travel around searching for their place in the world. Mattie, mentions that she keeps on looking, seems like she just keeps starting over, I ainââ¬â¢t never found no place for me to fit. â⬠(76) Reuben tells Zonia, when he finds out that she is leaving the boarding house in search of her mom, ââ¬Å"when I get grown, I come looking for you. â⬠(84) Jeremy does not seem to care much when he loses his job because, ââ¬Å"donââ¬â¢t make me no difference. Thereââ¬â¢s a big road out there, I can always get my guitar and find me a place to stay. I ainââ¬â¢t planning on staying in one place for too long noway. â⬠(64) Martha Reverend Tolliver moved the Church up north because of the trouble the church was having. When the Civil War finally brought freedom to previously enslaved African Americans, the task of organizing religious communities was only one element of the larger need to create new lives, to reunite families, to find jobs, and to figure out what it would mean to live in the United States as citizens rather than property. August Wilsonââ¬â¢s play, Joe Turnerââ¬â¢s come and Gone, examines African Americans search for their cultural identity following slavery. Bibliography Murphy, L. G. (2000). Down By the Riverside. New York: New Yourk University Press. Wilson, A. (1988). Joe Turner Come and Gone. New York: Penguin Group.
Thursday, November 14, 2019
History of the Cell :: essays research papers
History of the Cell The word cell was coined by Englishman Robert Hooke (1635-1703), after viewing slices of cork in a microscope. The word cell was derived from the Latin word cella meaning small container. The microscope created new possibilities in the study biology. It allowed scientists to look into a completely new view of cellular biology. Galileo is credited with the invention of the microscope. Two of the main pioneers in microscope usage were Robert Hooke and Antonie von Leeuwenhoek. Rene Dutrochet discovered, in 1824, that the cell is the fundamental element in the structure of life. The first sightings of the actual movement of a cell were made by Robert Brown in 1827. Brown also discovered the nucleus in 1833. In Berlin, Johannes Muller made the connection between biology and medicine, others soon followed Muller and his connective thinking. One to follow Muller was Theodore Schwann. Schwann created the idea of the "cell theory" in the 1830's and stated that plants consisted of cells. His statement was made after Matthias Schleiden (1804 - 1881) had decided in 1838 that animals are composed of cells. In 1939 Schwann also stated that all organisms consist of one or more cells, and that the cell is the basic structure for all of life. German Pathologist by the name of Rudolf Virchow (1821 - 1902) altered the thought of cellular biology with his statement that "every cell comes from a cell.â⬠Not even twenty years after this statement, processes of cell reproduction were being described. In 1898, Camillo Golgi developed a staining technique using silver nitrate that allows the identification of the cellular organelle that now bears his name, the ââ¬Å"Golgi apparatus.â⬠The Golgi apparatus is responsible for processing the proteins that are synthesized in the endoplasmic reticulum. In 1953 Stanley Lloyd Miller conducted his famous primordial soup experiment. His experiment may have possibly shown how lifeââ¬â¢s building blocks here on earth may have formed. In the experiment he subjected a gaseous mixture of hydrogen, water, methane, and ammonia to an electric discharge for one week. Instead of him showing everyone that spontaneous generation was possible, his primordial soup showed him that it was not. Miller made sure that there was no oxygen in his design, but all throughout life there has been oxygen present.
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