A Comparison Of The Catcher In The Rye And The Adventures Of Huck Finn

A Comparison Of The Catcher In The Rye And The Adventures of Huck Finn English A Comparison Of The Catcher In The Rye And The Adventures of Huck Finn by Keith Eich [emailprotected] http://www.neonet.net/keith There are a bunch of gramatical errors, but the paper got an A.. The forthcoming of American literature proposes two distinct Realistic novels portraying characters which are tested with a plethora of adventures. In this essay, two great American novels are compared: The Adventures of Huck Finn by Mark Twain and The Catcher In The Rye by J.D. Salinger. The Adventures of Huck Finn is a novel based on the adventures of a boy named Huck Finn, who along with a slave, Jim, make their way along the Mississippi River during the Nineteenth Century. The Catcher In The Rye is a novel about a young man called Holden Caulfield, who travels from Pencey Prep to New York City struggling with his own neurotic problems. These two novels can be compared using the Cosmogonic Cycle with both literal and symbolic interpretations. The Cosmogonic Cycle is a name for a universal and archetypal situation. There are six parts that make up the cycle: the call to adventure, the threshold crossing, the road of trials, the supreme test, a flight or a flee, and finally a return. There are more parts they do not necessarily fall into the same order, examples of these are symbolic death and motifs. The Cosmogonic Cycle is an interesting way to interpret literature because is Universal or correlates with any time period and any situation. The Call to Adventure is the first of the Cosmogonic Cycle. It is the actual "call to adventure" that one receives to begin the cycle. There are many ways that this is found in literature including going by desire, by chance, by abduction, and by being lured by an outside force. In The Adventures of Huck Finn, Huck is forced with the dilemma of whether to stay with his father and continue to be abused or to leave. Huck goes because he desires to begin his journey. In The Catcher In The Rye, Holden mentally is torn between experience and innocence, it would seem to him that an outside force is luring him to do something but in actuality he is beginning his journey because of his desire. The Call to Adventure is the first step in the Cosmogonic Cycle, it is the step at which the character or hero is brought into cycle. The Threshold Crossing is the second step, it is the place or the person that which the character crosses over or through into the Zone Unknown. The Zone Unknown being the place where the journey takes place. The threshold crossing is often associated with a character change or an appearance change. An example of this is in The Wizard of Oz, when the movie goes from black and white to color, showing a visual symbolic death. A symbolic death is another part to the Cosmogonic Cycle of which the character goes through a change and emerges a more complete person or more experienced. In The Adventures of Huck Finn, a symbolic death is very apparent during the scene in which Huck sets up his father's cabin to look like Huck was brutally murder. Huck emerges as a runway child and now must be careful of what he does, so that he does not get caught. Huck also tells people false aliases for himself so that no one knows his true identity. Every time that he does this he is symbolically dying and reemerges a more experienced person. In The Catcher In The Rye, Holden also uses fake names, but Holden symbolically dies through fainting, changing the position of his red hunting hat, and is associated with bathrooms. The bathroom motif, or the reoccurring appearance of a bathroom, symbolizes death for Holden because he enters bathrooms with a neurotic and pragmatic frame of mind and exits with a cleared mind. The use of symbolic death and motifs is associated with the Threshold Crossing, the second step of the Cosmogonic Cycle. The Road of Trials is the next step in the Cosmogonic Cycle, which are the obstacles which the character faces throughout the literary work. In The Adventures of Huck Finn, Huck's Road of Trials occurs on the Mississippi River. He faces many obstacles, including moral decisions of right and wrong, dealing with con-artists, and helping a runaway slave. He promulgates more experienced from his journey down the river on his raft. In The Catcher In The Rye,

New Baby and Experience of Birth Quotations

New Baby and Experience of Birth Quotations For a first-time mother, the experience of having a baby is indescribable. The new feeling of life taking from inside her, the physical and emotional changes, and the anticipation of bringing forth a new life is wonderful. A new baby brings untold joys to the life of a mother. These new baby quotes beautifully express the joys of motherhood. This collection of new baby quotes has famous people articulating their feelings on the arrival of a new baby. Whether or not you have a baby, you will find immense pleasure in reading these new baby quotes. New Baby Quotes Nancy ThayerWho is getting more pleasure from the rocking, baby or me?David LettermanCongratulations are in order for Woody Allen. He and Soon Yi have a brand new baby daughter. Its all part of Woodys plan to grow his own wives.AnonymousAdoption is when a child grew in its mommys heart instead of her tummy.Shannon Boff[After having twice been a surrogate mother] I think Im going into retirement. Any more babies coming from me are going to be keepers.AnonymousThe joy of having a baby today can only be expressed in two words: tax deduction.Irena ChalmersThere are three reasons for breast-feeding: the milk is always at the right temperature; it comes in attractive containers, and the cat cant get it.Jimmy Piersall[on how to diaper a baby] Spread the diaper in the position of the diamond with you at bat. Then fold second base down to home and set the baby on the pitchers mound. Put first base and third together, bring up home plate and pin the three together. Of course, in case of rain, you gotta call the game and start all over again. Marion JonesI loved having my baby inside of me, but I was very happy when he was finally here.Dave BarryThe old system of having a baby was much better than the new system, the old system being characterized by the fact that the man didnt have to watch.Kate HudsonI got so much advice; I just started tuning it out. If one more person told me what I had to do when the baby comes, I was going to shoot em.Sam BrownbackUnborn children can experience pain even more so than adults as the baby has more pain receptors per square inch than at any other time in its life.Eileen Elias FreemanWhen babies look beyond you and giggle, maybe theyre seeing angels.Terri GuillemetsIt was the tiniest thing I ever decided to put my whole life into.Lucinda FranksChristmas in Bethlehem. The ancient dream: a cold, clear night made brilliant by a glorious star, the smell of incense, shepherds and wise men falling to their knees in adoration of the sweet baby, the incarnation of perfect love.

( early 1800's )How did Latin American labor systems change after its Essay - 1

( early 1800's )How did Latin American labor systems change after its transition from colony to nation and in the century that followed What were the historical forces that led to these changes - Essay Example The Indians and mestizos also were converted into religious, political and economic life of the Spanish and their freedom was limited. Latin America was made up of population of three castes. A group of whites had the power and owned property, another caste of whites controlled political offices and worked as small entrepreneurs while the third caste comprised of free persons of color who were African slaves and European planters (Meade, 63). Forced and migrant labor was evident. Labor in Latin America during colonization was in form of slavery or forced labor. The slaves were used in cultivating the vast sugar and cotton plantations owned by the Europeans and mining. According to Meade (62), the crown who ruled the colony prevented the merchants’ access to political office. Taxes and fines were also imposed on them as well as petty restrictions thereby limiting the markets for their produce. This forced them to work in European farms so as to earn a means of living. The colonial agents who were placed over them were corrupt and inefficient. The slaves were acquired from Africa and traded to work in European colonies which comprised of Latin America. The slaves worked under inhumane conditions which were life threatening and were not paid any wages. Indians provided labor in haciendas. After the slave revolt in San-Domingue, other states joined in revolts to demand independence. Peasants demanded rights to land and abolition of taxes. Haiti received independence in 1803, Peru and Mexico in 1821 and Brazil in 1822. After independence, slavery was abolished in Latin America except Brazil which relied heavily on slavery. During struggle for independence and World War 1, men left their homes to participate in the battle hence women resumed men duties. Women also performed some chores like sewing, nursing, soldiers and some became spies and managers of household farms (Meade, 74). They were thus absorbed in labor systems as opposed

BUS Essay Example | Topics and Well Written Essays - 250 words

BUS - Essay Example d direct communication between different ranks within the restaurant hierarchy, the staff was aware of restaurant’s vision, and everyone saw all the achievements and failures of colleagues. Nevertheless, the main weakness of this construct in the reality was that the personality of manager did not fit this role. In my case, these meetings turned to suffering. Every day, we were bored listening how the most experienced waiters discussed their achievements with manager, while the others we blamed for their mistakes. In addition, the vision of restaurant melted in the details our manager noticed. Thus, it is crucial to maintain fragile balance within the quality management not to destroy its effectiveness. This situation showed that quality management is not only about boring daily meetings. On the contrary, it is about the way the leader understands his mission in providing the highest quality services to customers. If he is incapable to comprehend it, quality management does not work

Annotated Bibliography on the book Damned by Chuck Palahniuk

On the book Damned by Chuck Palahniuk - Annotated Bibliography Example The book has several chapters that include; Books by Chuck Palahniuk, Short Story Collection by Chuck Palahniuk, Novels by Chuck Palahniuk, Fight Club, Choke, Survivor, among others. This book represents a new and exciting lexis in sharing of human knowledge. Although the book is a collaboration that focuses on Novels and articles by Chuck Palahniuk, it is very comprehensive on any work done by Palahniuk. It gives the reader a clear outline of Palahniuk’s novel, ‘Dammed’ from the start to the end of with a systematic flow. It also points out the author’s artistic richness and key themes and character analysis. In this website, the author of the article ‘Chuck Palahniuk’s Damned: Damned if you do’ Justine Jordan comprehensively review the Palahniuk’s ‘Dammed’ giving a picture of how the novel flows and describing what could have been in the Palahniuk’s mind when he wrote the book. He prospers in explaining the novel’s flow in a systematic manner, describe and analyze characters and their corresponding traits and roles in the book. Above all, the author is quite effective in explaining the setting as it is in the novel- he does this in such a manner that his readers will be familiarized about the novel ‘Dammed’ as the readers of the original

Effect of Technology on Urban Spaces

Effect of Technology on Urban Spaces Emerging Enclaves of Innovation in Multimedia Services Akanksha Nayyar In understanding the complex interactions between infrastructure networks and urban spaces, Stephen Graham and Simon Marvin explore the emerging enclaves of innovation in multimedia services. The formation of these gentrifying ‘cyber’ districts is fueled by the production of internet services, digitization of design, architecture, gaming, CD-ROMs and music[1]. To be more specific, the regions that have undergone such enclave development include New York’s Silicon Alley, San Francisco’s Multimedia Gulch, and London’s Soho; to name a few. In order to thoroughly understand the influence that multimedia services have had on these urban places, this report will seek to critically analyze their economic, social and political environments. In addition, how these urban places represent an outcome of the global economy, and how they are connected both â€Å"glocally† and â€Å"globally†, will be discussed. Finally, a discussion in regards to the technologies that are important to the activities of these districts will be explored. ECONOMIC ENVIRONMENT The economic impacts of the cyber gentrification of the regions previously mentioned possess both favorable and alarming characteristics. For starters, New York City’s most densely populated region, Manhattan, experienced the highest internet activity on the planet.[2] This paved the way for the development of its Silicon Alley ¸ which is home to a booming set of interactive media industries. 56,000 jobs from 2,200 firms were created in this sector alone, which is as much as a 105% increase between 1996 and 1998.[3] As a direct result of this, considerable investments were made in the form of restaurants, corporate retailers, property firms, loft developers, and infrastructure companies.[4] Furthermore, the city of New York has gone as far as supporting the new media enclaves with tax holidays, grants, loan funding and financial support for certain initiatives, such as â€Å"Plug ‘N’ Go†, which converts properties into internet-ready real estate[5]. On the other hand, in San Francisco’s Multimedia Gulch, we begin to see a negative economic impact. Although, surveys have shown that more than 35,000 people are now working in the multimedia industry, with the vast majority being from Multimedia Gulch, there have been several protests.[6] There have been issues regarding a lack of parking and a city bureaucracy that has made it tough for companies to expand. Moreover, real estate speculators have colonized certain districts and in turn, caused the rental costs to increase.[7] Consequently, poorer residents can no longer afford to live in their residences. This in turn, creates a larger economic disparity between low-income and medium-to-high income citizens. Based on an analysis of solely the economic environment, it becomes apparent that the job creation and increased investment levels as a result of the ‘dot-commers’ have a positive effect. That being said, however; the fact still remains that at that point in time, the internet remained as the preserve of a small global elite between two to five percent of the global population.[8] In simple terms, the rich get richer as the poor get poorer. The high-income individuals are being provided greater resources, such as the internet and communication technologies (ICT’s), to further increase their wealth.[9] Whereas the lack of access to these ICT’s by low-income individuals prohibits them from improving their financial affairs, which therefore widens the overall economic gap between each income-class.[10] SOCIAL ENVIRONMENT The creation of innovative enclaves as a result of multimedia services has also greatly impacted the social build-up of each region. The process of gentrification, wherein middle-to-upper class people take up residence in a traditionally working-class area of the city, ultimately changes the character of the area.[11] For example, often times the reconstruction of these urban neighborhoods developed a playful reputation to cater to a diverse and â€Å"chic† population, who are able to make use of various types of ethnic restaurants, art spaces and shops.[12] In the Alley, people are drawn from all corners of the earth. The cultural blend and diversity of ethnic traditions, viewpoints and value systems have enriched all lives.[13] Silicon Alley has become a model of how diversity can add strength and unity to a complex community. Furthermore, in the Multimedia Gulch, several neighborhoods were gentrified to sustain the cluttering demands of interlocking micro, small and medium-size firms in digital design, advertising gaming, publishing, fashion, music, multimedia, computing and communications.[14] At first glance, this appears to be a favorable development of a given neighborhood. However, the underlying issue is that it reinforces a class hierarchy, wherein only certain individuals have access to these new markets. The issue continues as these enclaves create two parallel communication systems: the first is suited for individuals that are socioeconomically affluent and are now being provided access to ICTs and multimedia services that provide them with information at high speeds and low costs. On the other hand, the second communication system is for less educated individuals who face barriers of cost, time, uncertainty, and ultimately depend on outdated information.[15] The coexistence of these two communi cation systems creates a fruitful future for the individuals at the top of the class hierarchy, and despair for those at the opposite end. Some of the more alarming social characteristics of these enclaves include increased stress levels for older residents of gentrifying neighborhoods. These stress levels have been associated with rises in the death rates of elderly seniors.[16] In combining both the economic and social characteristics, we begin to paint a picture wherein there is a trend towards the exclusion of poorer people from the cities. It is important to note that the whole purpose of innovative multimedia services and ICTs is that they provide us with limitless possibilities for overcoming traditional social and geographical barriers, however; it appears that this is only true for a segment of the population. POLITICAL ENVIRONMENT The emergence of innovative enclaves of multimedia services also has ramifications towards their respective political environments. For instance, political coalitions such as the Yuppe Eradiction Project have surfaced in the Multimedia Gulch.[17] These coalitions are a response to the dot-com invasion and operate under the banner â€Å"The Internet killed San Francisco†. Among the issues targeted by the coalition include real estate prices, homelessness, and accentuating landscapes of social and geographical polarization.[18] The creation of these enclaves also poses a problem for decision makers in regards to the planning aspect of the city. The growths experienced in multimedia clusters and digital centers have had a great impact on issues such as car parking, among other transportation issues. In addition, decision makers are also forced to explore issues such as the ownership and control of digitized information.[19] OUTCOME OF THE GLOBAL ECONOMY Since the beginning of the globalization era, the world continues to seek new methods in which it can exchange information, products and services with one another. It is because of the very need for us to continuously connect and exchange with the rest of the planet that we see the emergence of enclaves of innovation in multimedia services. For example, in Soho, London, a media enclave has developed dedicated infrastructure that allows it to extend to global markets in real time. Coined â€Å"Sohonet†, the system links the tight concentration of film and media companies, television broadcasters, publishers, internet providers, graphic designers and recording studio headquarters in London directly with Hollywood film studios through seamless transatlantic fiber connections.[20] Sohonet is just one example that allows us to see how the emergence of these media enclaves is an outcome of the global economy. As more and more people around the world demand global events, such as spo rts, music, and Hollywood films, the emergence of these enclaves is inevitable. Furthermore, we see a similar enclave development in Malaysia with its $20 billion Multimedia Supercorridor (MSC).[21] The aim of the MSC is to replace Malaysia’s manufacturing-dominated economy with services, IT, media and communication industries in an effort to make it ‘Asia’s technology hub’ by 2020.[22] This example allows us to see that in an effort to become globally relevant, Malaysia has witnessed a development of its own enclave of innovation in multimedia services. ENCLAVES ON A GLOBAL AND LOCAL PRESPECTIVE Globalization allows us to see how these media enclaves are connected on a broad scale. That being said, in order to enjoy the benefits of global urbanization through multimedia and information exchange, the relationship between global and local cultures must be understood. Allen J. Scott touches upon the concept of glocal connectivity in The Cultural Economy of Cities. He asserts that many media giants seeking to develop distinctive products â€Å"insert themselves into regional cultural-economic systems†.[23] By this, Scott refers to an arrangement wherein companies create close linkages and working relations with several other firms in order to ultimately tap into the specialized skills of the local labour force. This is essentially the foundation of glocalization, wherein the concept dictates that in a global market, a product or service is more likely to succeed when it is customized for the locality or culture in which it is sold.[24] This theory allows us to see why sev eral firms cluster in certain districts such as the Silicon Alley, Multimedia Gulch, or Soho. In the Rise of the Creative Class by Richard Florida, he explores the idea that as the symbolic attributes of products or services becomes more important, so too do places that host firms.[25] Urban places such as the Silicon Alley, Multimedia Gulch, or Soho are adept at incorporating cultural knowledge, design distinctiveness, and fashionability into products or services. This is because these types of places draw upon the types of creative lifestyles necessary, such as talented video producers, chic advertising executives, and distinctive web designers.[26] On the other hand, we also see that these enclaves can be glocally connected in a much different way. For example, we sometimes see that there are extreme asymmetries that exist amongst the North-South relations in regards to multimedia. For instance, TV and Internet media provide a great deal of Anglo-Saxon content in developing nations as the US culture is extended through the growth of electronic connections.[27] We see this specifically with the Soho enclave. Their commitment to developing infrastructure that provides them with real time information with Hollywood and other North American multimedia services demonstrates this type of dependence. This is primarily because the local population demands it. Alternatively, we don’t see this same type of counter-dependence in the North American multimedia enclaves on Soho. This allows us to see the relationship between global and local relationships, as the concept of glocalization demonstrates that in achieving global objectives, the preferences of locality cultures must be considered. USE OF TECHNOLOGIES In considering the technologies that make the existence of these multimedia enclaves possible, it is important to acknowledge the industry’s evolution and development of infrastructure. Over the course of 20 years, the ICT industry has moved from having an insignificant presence to becoming one of the world’s fastest growing and potentially largest industries.[28] For example, Western Europe’s ICT industry accounted for 2 percent of Gross Domestic Product in 1984; this figure was expected to change to approximately 7 percent by 2000, with 60 percent of all jobs to be supported either directly or indirectly by ICTs.[29] In order to accommodate the rapid growth in this industry, a strong infrastructural foundation was required. As such, the technologies required by these cyber districts ultimately made use of the infrastructure laid out in the ‘Global Cities’ during the construction of financial enclaves, as discussed by Graham.[30] Furthermore, the tr aditionally used copper and coaxial cable links are increasingly being supplemented or completely replaced by optic fiber, wireless, microwave and highly efficient satellite systems. Cities are now being connected through giant lattices of advanced telecommunication links. More importantly, this connects the urban hubs together into the global electronic grid.[31] The connection between the local and global environments factors into our previous discussion of the everlasting need to connect and exchange with the rest of the planet. These grids provide the technological basis necessary for the flows of global telecommunication traffic, including transmissions such as voice flows, faxes, data flows, image flows, TV and video signals.[32] An important milestone to make note of is when the industry began to see interpenetration between the two existing networks of communication in these media enclaves: the traditional mass media, such as cable TV, and internet-based communication networks, such as websites. An example of this interpenetration is when the traditional mass media makes use of internet-based blogs and interactive networks in order to reach their target audiences.[33] The convergence of these two networks is a key strength that has allowed for the emergence of innovative multimedia enclaves to occur. In concluding the discussion on emerging enclaves of innovation in multimedia services, it is worthwhile to summarize. The major issues that present themselves against the emergence of these enclaves are primarily produced as a result of the gentrification process. This marginalizes the poorer citizens of the districts in question, and consequently, adds pressure on to the economic, social, and political environments of each urban place. Given that globalization necessitates, the services provided by these types of enclaves, and the benefits witnessed through the relationship between global and local cultures, it is vital for us to attempt to find a solution. As such, we begin to see a wide range of efforts by non-profit agencies, social movements, and municipalities aimed to extending access to ICTs to poorer, marginalized groups and communities.[34] This is not to rely on a simplistic ideal, or a â€Å"silver bullet†, that will serve as a solution to much more complex proble ms. However, it is a starting point that could begin to improve and potentially shorten some of the economic, social, and political gaps we see as a result of the development of these enclaves. The innovations achieved through these districts are undeniably in the best interest of society as a whole, however; consideration and care must be given to those individuals that are marginalized in the process. WORK CITED Castells, M. (2011).The rise of the network society: The information age. (2nd ed., Vol. 1). John Wiley Sons. Retrieved from http://books.google.ca/books?hl=enlr=id=FihjywtjTdUCoi=fndpg=PA1968dq=related:NCOsPP8QZtUJ:scholar.google.com/ots=l10pXWCS9Ysig=rTK_31NRi-n6v0pwhe_gBs9bYvA Gentrification. 2014. InMerriam-Webster.com. Retrieved March 16, 2014, from http://www.merriam-webster.com/dictionary/gentrifacation Glocalization. 2014. InMerriam-Webster.com. Retrieved March 16, 2014, from http://www.merriam-webster.com/dictionary/glocalization Gottlieb, J. (1999). Silicon alley..new york city. Retrieved from http://iml.jou.ufl.edu/projects/Spring99/Gottlieb/got.html Graham, S., Marvin, S. (1996).Telecommunications and the city: Electronic spaces, urban places. Psychology Press. Retrieved from http://books.google.ca/books?id=YNorjRJnVEMCpg=PA327lpg=PA327dq=Telecommunications+and+the+Citysource=blots=nnPRvam8Wjsig=ZxrMAa0beIJqa5cNq96BfWmXC44hl=ensa=Xei=q8AjU9zlHs2oqwHMmIGoDgved=0CGIQ6AEwBw#v=onepageq=Telecommunications%20and%20the%20Cityf=false Graham, S. (1998). The end of geography or the explosion of place? conceptualizing space, place and information technology.Progress in Human Geography,22(2), Retrieved from http://www.realtechsupport.org/UB/NP/IoT_ExplosionSpace_1998.pdf Graham, S. (2000). Constructing premium network spaces. International Journal of Urban and Regional Research,24(1), Retrieved from http://old.geog.psu.edu/courses/geog497b/Readings/Graham.pdf Graham, S. (2000).Bridging urban digital divides? urban polarization and information and communication technologies (ICTs). (Vol. 39). New York: Carfax Publishing. Retrieved from http://www.nomads.usp.br/documentos/textos/cultura_digital/tics_arq_urb/BridgingDigitalDivide.pdf Graham, S., Marvin, S. (2001).Splintering Urbanism: Networked Infrastructures, Technological Motilities and the Urban Condition. New York: Routledge. (Chapter 3, 91-136) Graham, S., Marvin, S. (2001).Splintering Urbanism: Networked Infrastructures, Technological Mobilities and the Urban Condition. New York: Routledge. (Chapter 7, 329-336) Indergaard, M. (2004).Silicon alley: The rise and fall of a new media district. New York: Routledge. Retrieved from http://books.google.ca/books?hl=enlr=id=k96SAgAAQBAJoi=fndpg=PP1dq=innovative enclaves multimedia centresots=tRvVaCTstOsig=hyiVFkjoMv8uppG9ttGTy33wVB0 Raine, G. (1999, October 31). Making sense of multimedia gulch. Retrieved from http://www.sfgate.com/business/article/Making-sense-of-Multimedia-Gulch-3060560.php Sassen, S. (2001).The global city: New york, Tokyo, London. (2nd ed.). Woodstock, Oxfordshire: Princeton University Press. Retrieved from http://books.google.ca/books?hl=enlr=id=PTAiHWK2BYICoi=fndpg=PR11dq=related:NCOsPP8QZtUJ:scholar.google.com/ots=BS-ErhSdN1sig=VbeYDBon1fqYmpGgIb5OsOJ54YQ [1] (Graham Marvin, 2001) [2] (Graham Marvin, 2001) [3] (Graham Marvin, 2001) [4] (Graham Marvin, 2001) [5] (Graham Marvin, 2001) [6] (Raine, 1999) [7] (Graham Marvin, 2001) [8] (Graham, 2000) [9] (Graham Marvin, 1996) [10] (Graham Marvin, 1996) [11] (Webster, 2014) [12] (Graham Marvin, 2001) [13] (Gottlieb, 1999) [14] (Graham, 1998) [15] (Graham, 2000) [16] (Graham Marvin, 2001) [17] (Graham Marvin, 2001) [18] (Graham Marvin, 2001) [19] (Indergaard, 2004) [20] (Graham Marvin, 2001) [21] (Graham, 2000) [22] (Graham, 2000) [23] (Castells, 2011) [24] (Webster, 2014) [25] (Indergaard, 2004) [26] (Indergaard, 2004) [27] (Graham, 2000) [28] (Graham Marvin, 1996) [29] (Graham Marvin, 1996) [30] (Graham, 2000) [31] (Graham Marvin, 1996) [32] (Sassen, 2001) [33] (Castells, 2011) [34] (Graham, 2000)

Gifford Pinchot and Environmental Conservation :: essays research papers

Gifford Pinchot Gifford Pinchot was one of America's leading advocates of environmental conservation at the turn of the twentieth century. Born into wealth and endowed with imagination and a love of nature, he shared his money, possessions and intellect to further the causes of the common good. It was at Grey Grey Towers that James Pinchot first encouraged his son to explore the profession of forestry. But such training did not yet exist in the United States, so, after graduating from Yale University in 1889, Gifford went abroad to study at L’Ecole Nationale Forestiere in Nancy, France. With equal fervor Pinchot set to work. In the next two decades he raised forestry and conservation of all our natural resources from an unknown experiment to a nationwide movement. He became head of the Division of Forestry in 1898 and under President Theodore Roosevelt was named Chief Forester of the redefined U.S. Forest Service. National forest management was guided by Pinchot’s principle, â€Å"the greatest good of the greatest number in the long run.† His magnetic personal leadership inspired and ignited the new organization. During his government service, the number of national forests increased from 32 in 1898 to 149 in 1910 for a total of 193 million acres. Pinchot and Roosevelt together made conservation public issue and national policy. Roosevelt considered the enactment of a conservation program his greatest contribution to American domestic policy. Gifford Pinchot was born at Simsbury, Connecticut, on August 11, 1865, in a house recently purchased by his grandfather, Amos R. Eno. The home had earlier been owned by Gifford's great grandfather, Elisha Phelps, a distinguished politician who served as Speaker of the U.S. House of Representatives during the 1820's. Gifford grew up spending his early summers with relatives in Connecticut and the rest of his time in New York City. Because of his father's business interests abroad, the family traveled extensively while Gifford was a child. He prepared for college at Phillips Exeter Academy, and in the fall of 1885, entered Yale University. Deciding to pursue forestry, and finding no such beast at Yale, he left for Europe after graduation to pursue his dream. When Roosevelt failed to win the Republican presidential nomination from Taft in 1912, Pinchot took an active role in founding the new Progressive Party, commonly known as the Bull Moose Party.

Physical Chemistry

Physical Chemistry II. Final Exam Your Name: Your Student Number: 110 Normal Points + 10 Bonus Points If you get 110 points out of 120 points, you will get the full 40% assigned to the midterm exam. Your scores 1) 2) 3) 4) 5) 6) Total: out of 25 out of 20 out of 20 out of 15 out of 20 out of 20 out of 120 * All the problems are connected. In other words, to solve the problem, you may need the information and/or answers given in other problems.All necessary information is basically given. Also please consult the supplementary material handed out to you. ) (25 pts) a) (6 pts) The translational energy states in a cubic container are given by the following equation. Derive the following equation for the molecular translational partition function. You will need the following integral relation. ? ? 0 e n 2 ? ? ? dn ? ? ? 4? ? ? ? ? 1/ 2 Answers) ( ) ? ? ( ) ( ) ? ? ? ( ) (? ) ( ) ( v ( ( ) ) ) ( a^3 =V ) ( ) b) (3 pts) If the vibrational energy levels are given as follows, (b-1) where is the zero of vibrational energy? (b-2) What approximation has been made regarding the vibrational motion? Answers) (b-1) The zero of vibrational energy is at the bottom of the internuclear potential well. 2 pts) (b-2) The vibrational motion is approximated as an harmonic oscillator. (1 pt) c) (6 pts) Derive the following equation for the molecular vibrational partition function. You will need the relation applicable when x is less than 1. ?xn ? ?0 ? ? 1 1? x Answers) ( ) ? ( ) ( ) ? ( ) ? ( ) ( ) d) (2 pts)If the molecular electronic partition function can be approximated as follows, where is the zero of electronic energy? Answers) The zero of the electronic energy is taken to be the separated atoms at rest in their electronic states (2 pts). ) (3 pts) If the molecular rotational partition function is given by the following equation, what assumptions have been made? Answers) 1) The molecule is approximated to be a rigid-rotor. (1 pt) 2) The temperature is much higher than the rotatio nal temperature. (2 pts) f) (5 pts, no partial points) Based on the answers and information given above, write down the equation for the molecular partition function of a diatomic molecule. Answers) ( No partial points. ) ( ) 2) (20 pts) a) (3 pts, no partial points)For a diatomic ideal gas, write down the relationship between the partition function (Q) and the molecular artition function (q). Answers) 3pts. No partial points. ( ) ( ) b) (7 pts) Derive the following equation. Answer) ? ( ) ( )( ) ? ( ( ) ( ) ) ( ) ( ( ) ) ? ( ) ( ) ( ) ? ( ( ) ) ) ( ? ( ) ( ) ( ) (3 pts) (4 pts) )( ( ) ( ) (7 pts) ) ( ( ( ) ) ( ) ) ( c) (5 pts) A is given as follows. Express S in terms of Q. Answers) Path1 (1 pt) (2 pts) ( ( ) ( 5 pts) ) Path2 ( ) ? ( ) ? ? ? (2 pts) ? ? ? (3 pts) ? ? ? ? ? ? ? (4 pts) ( ) ? ? ( ) ( ) ? ? ( ) ( ) (5 pts) d) (5 pts) Express S in terms of q. Use Stirling’s approximation (ln N! = N ln N – N). Answers) ( ) ( ( ) ) (2 pts) ( ) [ ( ) ] ( ) (5 pts) ) (20 pts) a) (10 pts) Calculate the standard molar entropy of Br2(g) at 298. 15 K. (10 pts if the value and unit is correct. 3 pts deduction if the value is wrong but within 20 percent of the correct answer. 3 pts deduction whenever the unit is not written or incorrect. 7 pts deduction if the value is wrong and outside 20 percent of the correct answer. ) Answers)For ( ) ( ) (3 pts) Then, ( ( ) ) ( ) ( ( ( ( ) ) ( ) ) ) 10 pts if the value and unit is correct. 3 pts deduction if the value is wrong but within 20 percent of the correct answer. 3 pts deduction whenever the unit is not written or incorrect. pts deduction if the value is wrong and outside 20 percent of the correct answer. b) (10 pts) Calculate the standard molar entropy of Br2(l) at 298. 15 K. The normal boiling point of Br2(l) is 332. 0 K, the molar enthalpy of vaporization at 332. 0 K is 29. 54 kJmol-1, the molar heat capacity of Br2(l) is 75. 69 JK-1mol-1 and the molar heat capacity of Br2(g) is 36. 02 JK-1mol-1. (10 pts if the value and unit is correct. 3 pts deduction if the value is wrong but within 20 percent of the correct answer. 3 pts deduction whenever the unit is not written or incorrect. pts deduction if the value is wrong and outside 20 percent of the correct answer. ) ( ) () Answers) Standard molar entropy ? 3 pts) And () ( ) (? ( ) -Liquid to boiling point ( -At boiling point ) ( ) ( -Gas ( ) ( ) ) () ( ) ( ) 10 pts if the value and unit is correct. 3 pts deduction if the value is wrong but within 20 percent of the correct answer. 3 pts deduction whenever the unit is not written or incorrect.7 pts deduction if the value is wrong and outside 20 percent of the correct answer. 4) (15 pts) a) (5 pts. No partial points) Derive the partial derivative of S with respect to T at constant P in terms of Cp and T. ) ( ) ( ) From > ( ) ( ) ( ) From (1) and (2), And ( ) ( ) [ ( ) ( ) ( ) ( ) ] ——-(2) ( ) ( ) ——-(1) Answers) Total derivative of > ( ) (5 pts. No partial points) b) (2 pts. No partial points) What is the natural variables of U? Answers) S and V c) (2 pts. No partial points) Express dU in terms of dS, dV, T, P. (Answers: dU = TdS – PdV) Answers) d) (6 pts, No partial points) Consider V and T to be the independent variables of U. Derive the expression of dU in terms of dV, dT, P, T, V, CV. Answers) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) + ( ) ( ) ( ) ( ) ( ) ( ) + ( ) ( ) , V and T are independent to U. ) 5) (20 pts) a) (5 pts) Derive the following equation. Answers) ( ) ? ? ( ) ( ) ( ( ) ( ) (1 pt) ( ) (2 pts) (3 pts) ) (5 pts) b) (5 pts) Derive the following equation. Answers) ( ) ( ) ( ( ) ( ( ) ) ) (1 pt) ( ) ( ( ( ) ( ) ) ( ) ) ( ) ( ) ( ( ) ) (3 pts) (5 pts) c) (5 pts) Derive the following equation. Answers) ( ) ( ) ( ( ) (1 pt) ) ( [( ) ] ( [( ) ] ) ) [( ) ( ) ( ) ( ) ( ) [( ) [( ) ( ) ] (3 pts) [( ) ] ] (5 pts) ] d) (5 pts) Derive the following equation and express q0 of c) as a function of T, V, etc. for the ca se of a diatomic molecule. Answer) ( ? ) ? ? ( )? ? ( ) ? [ ? ( )? ] ( ] ( ) [( (2 pt) ( ) ) ] [( ) ] ? ( ) [( ( ) ) ( ) [( ) ] (5 pts) 6) (20 pts)Consider the following reaction. a) (5 pts) What is ? rH of this reaction at 298. 15 K? Write down a numerical value with a unit. Use the given JANAF table. Answers) ? fH(H2) = 0 and ? fH(N2) = 0 ? rH = ? fH(NH3) –[ 1. 5* ? fH(H2)+0. 5* ? fH(N2) ] (2 pts) =-46. 898kJ/mol (5 pts, no partial points for wrong value. 2 pts deduction for wrong unit) b) (5 pts) What is q0/V for NH3 at 298. 15 K? Use the given JANAF table. Answers) ( ) (1 pt) ) ( ) ( ( ( ) ) ( ) )( =4. 960*1033 m-3 (5 pts) 5 pts, no partial points for wrong value. pts deduction for wrong unit c) (5 pts. No partial points) Suppose that this reaction occurs at 500 K and a total pressure of one bar and we start with three moles of H2(g), one mole of N2(g) and no NH3(g). Express G(? ) in terms of only ? and numerical values. Use the given JANAF table. Answers) ( ) ( ) ( ( ) ) ( ( ) )[ ( ( ) ( ( ) ( ( ) ) ) ) ) ( ( ) ) ] ( ( ) ) ] ( ) ( ) ( ) [( ( ) d) (5 pts. No partial points) Calculate the ? value at equilibrium and KP. Use the given JANAF table. Answers) ( ) ( ) ( ) ( ( ) ( ) ) ( ( ) ) ( ( ) (3 pts) ) ( ) ( ( ( ( ) ) ) ) (2 pts)

Investigation into the relationship between the density of fresh water shrimps in fleet brook and the flow rate of water brook Essays

Investigation into the relationship between the density of fresh water shrimps in fleet brook and the flow rate of water brook Essays Investigation into the relationship between the density of fresh water shrimps in fleet brook and the flow rate of water brook Essay Investigation into the relationship between the density of fresh water shrimps in fleet brook and the flow rate of water brook Essay Essay Topic: Into the Wild Fresh water shrimps (gammarus pulex) are crustacean living in many rivers and streams of this country. They prefer to live in flowing fresh water environments which often has better oxygenated waters that still water environments.2 Aim The aim of my investigation will be to determine the relationship, if any, between the gammarus pulex (fresh water shrimp) population density (the number of shrimps) and the rate of water flow at particular sites of Shir Burn Brook. Preliminary work For my preliminary work, a variety of sampling techniques were carried out to collect samples of freshwater organisms in Shir Burn Brook. The methods include the kick sampling technique and the prodding sampling technique. The range of the flow rate of water in Shir Burn Brook was found to be 0.05m/s-0.25m/s. The samples collected also enabled me to correctly classify and thus allowing me to recognize gammarus pulex. Samples were also collected in a static water environment to enable me to differentiate between the species gammarus pulex and its static water relatives, grangonyx pseudogracilis. Kick samples were taken at different site in the brook. The numbers of freshwater shrimps found at each of these sites are 20, 35, 60, 15, 24. This shows me the range of the number gammarus pulex I should expect. These figures gave me a rough guide on the range of the numbers of gammarus pulex living in the brook. This means that I have a rough estimate of the numbers of shrimps I expect to find during my investigation. Hypothesis: There will be higher densities of gammarus pulex present in areas of faster water flow. The results should show a positive relationship between the rate of flow at a site in the stream and the number of shrimps found at the site. I believe this will be due to the variation in oxygenation of the water. As the water flows faster, the movement will mean that more oxygen can be dissolved into the water, creating a higher dissolved oxygen level in the water. The increased amount of oxygen will allow larger numbers of shrimps to thrive. Null hypothesis 1. There will be no relationship between the population density of gammarus pulex and the water flow rates of sites in Shir Burn Brook where the gammarus pulex are collected. 2. There is no correlation between the dissolved oxygen level of the water of the different sites of Shir Burn Brook and the rate of flow of water at these sites. Background information to explain hypothesis Site The Fleet is a man-made brook by diversion of Shir Burn Brook (TM075314) in the 19th century. The purpose of the Fleet was to deliver water to be used by the steam turbines in the near by railway station down stream.1 It runs through a clearing in woodlands. It is relatively unpolluted with nitrates and phosphate levels within the normal guidelines. As with any flowing fresh water habitat, there are large numbers of freshwater shrimp dwelling there.1 Gammarus pulex Gammarus pulex is a species of freshwater shrimps. Fresh water shrimps belong to the order of the amphipoda. A typical amphipod crustacean is flattened from side to side, and the body when at rest is curved round to form an arch. Gammarus pulex is found swimming on its side. When it is moving the hind parts of its body straightens out, only to contract again suddenly into its normal curved position as soon as the creature stops. They are often found under stones or on the soft surface of the mud, and when disturbed scud rapidly away to shelter. The male is about 25mm in length and the females slightly smaller. Their colour is usually lightish brown. Fresh water shrimps are largely scavengers, feeding on decaying organic matter, but they are also known to devour other smaller creatures. Gammarus pulex are found abundantly in freshwater habitats in the British Isles. Care should be taken during classification to differentiate between the species gammarus pulex and grangonyx pseudogracilis which are usually found in static water environments.2 Flow rate of water Velocity of water varies throughout streams. This is due to the friction between the water and the stream bed. It is therefore expected that deeper parts of the stream will have higher rates of water flow since the surface in contact with stream bed-water volume area is smaller, meaning less friction. Depth is therefore a good indication of the flow rate at any site in the stream. Slower flow rates of water will allow small sediments of mud to develop on the bed of the stream. In faster sites, however only larger substrates such as pebbles are allowed to deposit while substrates that are too small are carried off by the water. The stony bed of the stream are especially suited for the gammarus pulex as there legs will allow them to cling on to rocks, this would be less possible with a muddy substrate.3 Some species of fresh water fauna are in a similar niche to the gammarus pulex will not all be designed to with stand the turbulence of the water. Therefore, at sites with higher water speeds, the diversity of species present there will be less. This means that there will be less interspecies competition for all the essentials which the gammarus requires (e.g. planktonic foodstuffs, oxygen, space for shelter).4 Dissolved oxygen and temperature. The solubility of oxygen from air, at normal atmospheric pressure, in pure fresh water is related to the temperature of the water by the equation: Cs = 475à ¯Ã‚ ¿Ã‚ ½(33.5 + t ) 5 Where Cs is the solubility of O2 in water in mg/l and t is the temperature. It is obvious that if more oxygen is dissolved in the water, there will be more of it available for the respiration of fresh water fauna living in the stream. Respiration provides energy in the form of ATP allowing the metabolisms in the animals bodies to occur.6 The oxygen concentration in the streams is expected to be higher in concentration compared to static aquatic environment. The distribution of oxygen is also expected to be more even than static water habitats. This is all due to the movement of the water in streams allowing more oxygen to dissolve and subsequently mixing the oxygen evenly. Nitrates and phosphates Nitrogen and phosphorus are basic elements in all living matter. Nitrates and phosphates therefore are not unexpected to be found dissolved in Nitrate is an essential provider of nitrogenous elements for living organisms. Nitrogen is essential for the synthesis of protein and nucleotides in most living things. Nitrogen is recycled through the biosphere by the nitrogen cycle.7 Dead and decaying organic materials (in this case dead leaves) are broken down by denitrifying bacteria inhabiting the water. The nitrogenous molecules are converted into nitrates Nitrate and phosphates are regulators of organic growth. The free flowing algae and small planktonic forms are affected directly. High levels of nitrates and phosphates often stimulate their growth. Gammarus feed on these. Therefore if more plankton are in the stream due to the nitrate and phosphates, the number of gammarus will increase also. The problem with nitrate and phosphates is that when excessive amounts are present (often due to soil leaching, effluent produced by farms, and human effluent) algal growth is intensified leading to eventual deoxygenation of the water eventually causing eutrophication. Thus there will be a decrease in the number of gammarus found in the water. 8 Variables and Key variables Explain Independent, the different rates of flow of the Dependent Factor / Variable Effect on the project Control method Density of fresh water shrimps This is what is tested Flow rate of river This is the key variable of the investigation. It is expected that a higher flow rate of water will lead to higher gammarus population densities, and lower water flow rate will lead to smaller gammarus populations. Dissolve oxygen level of water For all aerobic organisms, oxygen is essential for their survival. Thus, a higher concentration of dissolved will enable a larger population of gammarus to exist in an area providing other factors are not limiting. Control variables Nitrate levels in water This will increase the algal populations in the water. Though sustainable amount of nitrates in the stream will lead to more foodstuffs for the gammarus and thus increase their population, high levels of nitrates caused primarily by pollution will lead to diminished shrimp population as the result to the effects of eutrophication. This variable is sampled at each site so that it is ensured that the nitrate level throughout the stream is constant. It is expected to be constant since the movement of the water will mix any dissolved nitrates till it is in equilibrium in the water. Phosphate levels in water Like the nitrate levels, this abiotic factor will cause fluctuating levels of micro organisms in the stream. The phosphate level in the water is tested at every site. This again ensures that the phosphate concentration is constant throughout all of the tested sites as expected. The phosphate compound is expected to be distributed evenly in the water due to the movement of the currents. Water temperature There will be an optimal temperature range at which gammarus will like to live. If a section of the river is out of this range, the number of gammarus found there will be lower than other sites. The water temperature is monitored at every site. This again ensures that the temperature of the water is constant throughout every site. The water of the brook should be of very similar temperatures since the flowing water currents will distribute the heat evenly throughout the river. Where the water temperature is significantly different from the other sites tested, another site with a more acceptable water temperature will be chosen to be sampled. pH of water There again will be a range of pH of water outside of which few gammarus will survive. Sites whose water pH is too low or high will not contain many gammarus. The pH of the water is tested at every site. This is to make sure that every site tested all have the same pH. Sites whose pH is significantly different from all of the other sites are not chosen to take samples from. The pH is expected to remain fairly consistent throughout the stream. Leaf coverage of the sky above the brook If a section of the brook is covered by leaves, the chance of a dead leave falling into the brook is greatly increased. Since gammarus pulex feeds primarily on decaying plant material, the populations of freshwater shrimp in these regions will be expected to be greater than regions with no leaf cover. The percentage leaf coverage is recorded at the sites where samples are taken. It is made sure that the leaf coverages at all these sites are similar. This shall not prove to be difficult since the brook runs through a wooded area. Seasonal variations Due to the life cycle of the fresh water shrimps, there will be times in the year were there will be small amounts of the gammarus making sampling difficult. This is over come by taking all of the samples in a day. The investigation is conducted in summer when there is sufficient numbers of shrimps in the river. Range of samples and number of repeats At least ten different sites of the stream should be sampled. This will give me a suitable amount of data to adequately perform statistical tests such as Spearmans rank coefficient. The range of the water flow rate of the sites will be from about 0.05m/s 0.25m/s as I have discovered in my preliminary work. This will provide an adequate range for the above ten sites of data to be taken, e.g.: 0.05m/s 0.07m/s 0.09m/s 0.11m/s 0.13m/s 0.15m/s 0.17m/s 0.19m/s 0.21m/s 0.23m/s In practice it will be difficult in the natural environment of to select sites with these exact flow speeds of water. Rather than findinf sites with precisely the same flow rate of the above, ten sites with suitably different flow rates and of suitable range is used to take the samples from. At each site, the site is repeatedly sampled for ten times. This will allow me to calculate the mean of each site and to identify any anomalous samples that were taken. Apparatus A wide range of equipments are needed for sample collection and the monitoring of the aboitic variables of the different sites of the stream. The possible sampling techniques are also considered here as the preference of any one of the methods will invariably affect the choices of apparatus. Kick sampling Prod sampling Needs large area to take each sample, So the sample area may not e of equal flow rate Not much substrate at some sites. Prodding method difficult in picking up samples. Use of apparatus Apparatus available Apparatus Chosen Reason for choice Effect on precision and reliability To measure flow rate of rive at different sites Pooh stick method Impellor method Impellor method The impellor will enable me to determine the rate of water flow at the bed of the stream. Whereas the Pooh stick method will only tell me the surface flow rate. The impellor and flow rate counter will give the speed of water flow to the nearest 0.1m/s. it also eliminates any human error To measure water temperatures Mercury thermometer Digital thermometer Digital thermometer It is more accurate if the thermometer is always left in the water when the temperature reading is taken. The level of the stream is on a very low level, making the accurate reading of the mercury thermometer very difficult. Furthermore, the digital thermometer will record the temperature to the nearest 0.1oC, whereas the accuracy of the spirit thermometer is at best à ¯Ã‚ ¿Ã‚ ½0.25oC. The digital will give us the temperature of the water to a greater degree of accuracy (à ¯Ã‚ ¿Ã‚ ½0.05oC). This reduces the precision error from the mercury thermometer by ten fold. Human error is eliminated by not having to take a reading of the temperature at the correct eye level. There is no longer need to estimate when the reading lies between two graduation marks. To measure water pH level Digital pH meter Universal indicator Digital pH meter The digital pH meter will give an accurate qualitative pH reading to two decimal places. The universal indictor will allow me to estimate the pH by matching the colour of the test solution with a colour chart. This is extremely prone to errors in that it is often very difficult to obtain test solutions with exact matching colours as the chart. The digital meter gives the pH to a far greater degree of accuracy. There is no comparison with colour charts needed. Care should be taken to ensure that the pH meter is properly calibrated before use. To measure dissolved oxygen concentrations of water. Diaphragm dissolved oxygen meter Diaphragm dissolved oxygen meter (0.0-19.9mg/l) This will give the dissolved oxygen level of the water. There is not another method that is both as accurate and as easily performed as this, making it ideal for project work in the wild. This is the only applicable method of testing the oxygen content of the water in the stream. It is also the most accurate method that could be used. The dissolved oxygen concentration of the water will have to be tested on site rather than on samples taken back to the laboratory. This is because that some oxygen will enter or leave the water in the sample bottles during transporting to the laboratory. To obtain dissolved nitrate concentrations of water. Reflectometer Indicator strips Reflectometer The reflectometer gives the nitrate concentration quantitatively rather than a qualitative result from the indicator strips. It gives the concentration of nitrate in water in units of mg/l. Reflectometry allows the conversion of a single nitrate presence test in to a qualitative nitrate concentration analysis. As the name suggests, the test is conducted by reflection light on an indicator strip which will undergoes a colour change in the presence of nitrate. The strip changes colour in proportion to the concentration of nitrate in the water. The reflectometer is calibrated to detect the degree of this change and convert it into a quantitative concentration of nitrates. To obtain dissolved phosphate concentrations of water. Reflectometer Indicator strips Reflectometer (for high phosphate levels) Indicator strip and reagents kit (for low phosphate levels: 3.0mg/l Similar to the nitrate concentration test, the reflectometer gives the concentration of phosphate in the water quantitatively. One difference between testing for phosphate and nitrate is that there is going to be much less phosphate expected to be dissolved in the water than nitrate. If the nitrate concentration is smaller than 3.0mg/l, this reflectormeter will register the concentration only as low. Under these circumstances, another technique is used. In this technique, 5cm3 of water sample is used and a series of two reagents are added to it. The colour change underwent is compared to the colour changes on a chart. This gives the phosphate concentration to à ¯Ã‚ ¿Ã‚ ½0.25mg/l accuracy. The reasons are similar to those for testing the nitrate concentrations of water. The phosphate low concentration test will present a range of five distinctive colour changes. These will correspond to the concentrations of 0.0mg/l, 0.5mg/l, 1.0mg/l, 1.5mg/l, 2.0mg/l, and 2.5mg/l. This give the phosphate level to a greater degree of accuracy the reflectometers for higher concentrations of phosphates, although the over all precision error will remain similar (0.5à ¯Ã‚ ¿Ã‚ ½2.5 = 1.0 à ¯Ã‚ ¿Ã‚ ½ 5.0) To measure the depth of brook at different sites. Meter rule Meter rule The meter rule will be most suitable as only a rough guide for the depth of the brook is to be obtained. The waster will leave a mark on the ruler from which the depth can be taken. The meter rule will give the depth of the brook to à ¯Ã‚ ¿Ã‚ ½1mm. This is of an acceptable accuracy as only a rough guide of the depth of the stream at the sampling site is requires. To collect sample kicked up. 0.50 meter net width. 0.25 meter net width. 0.5mm holes. 1mm holes. 0.50m wide net with 1mm holes in the netting material with 2m handle. As kick sampling is preferred, as net of the biggest width should be used to ensure that all organisms disturbed by the kick sampling is collected. As gammarus pulex are larger than 1mm, the pores in the net will allow substrate to filter through while retaining the gammarus to be sampled. The biggest possible net is used to ensure that most of the sample kicked up from the stream bed is collected. A net with 1mm pores is used to allow mud particles to pass through the net. Less mud will be transferred to the vessel in which the gammarus pulex are counted. This means the water in the vessel will be clearer which means any gammarus pulex present can be spotted more easily. To mark out site of sample taking. 0.50m by 0.50m quadrants 1.00m by 1.00m quadrants. 0.50 x 0.50m quadrant. A suitably large area of the stream will be marked out by this quadrant for sampling. At the same time the quadrant is not so big so that the speed of water flow does not vary within the area enclosed by the quadrant. A good sized quadrant will allow a site to be marked out for sampling. The quadrant chosen will increase the reliability of the test by allowing a large enough area with the same flow rate to be sampled. Apparatus required to classify and count the numbers of gammarus pulex in each sample. White enamel tray Pipette Plastic spoon. White enamel tray Pipette Plastic spoon. A white enamel tray will offer a light background to contrast the darker colours of the gammarus pulex so that they can be easily spotted. Pipette and plastic spoons will allow gammarus to be removed from enamel tray once they are counted. This avoids one gammarus being counted more than one time. Several major measures are to be take ensure the accuracy of the investigation. Water tamparature, oxygen concentrations, and water samples are collected before any sample is taken. This ensures that the abiotic variables of the water is not disturbed before they are measure. Whilst sampling, always work from down stream to up stream. This means that sites up stream from where the sample is taken is not disturbed. For each sample, the same number of kicks is done with the same hardness. From my preliminary work, kicking each spot ten times gives an adequate numbers of shrimps in each sample. It was seen that if the shrimp population density at a site is high, kicking 10 times brings up large number of gammarus pulex. At areas with low gammarus concentration however, only small numbers of gammarus are collected despite kicking ten times. Method 1. Select 10 sites in the river with 5 suitably ranged flow rates. This can be estimated by firstly measuring the depth of the brook at that point with a meter ruler. Make sure there are no drastic differences in percentage branch cover by using a section of hose pipe. 2. Once a site is chosen, the dissolved oxygen level and the water temperature must be measured first. This means that the water is no disturbed before the measuring which could lead to anomalous results. Water dissolved O2 levels Submerge probe in water. Do not sub merge the electrical wires. Move probe gently in water and wait for dissolve O2 level reading to equilibrate on digital display. Record the dissolve oxygen level in mg/l. Temperature Submerge metal part of thermometer into the water. Water for readings to equilibrate Record the water temperature. 3. Water sample is taken with a 150ml water sample bottle. The water sample should be taken from as close to the bottom of the stream as possible as this is the immediate surrounding of the freshwater shrimps. 3. The flow rate of the water is then tested with an impellor. The impellor device is placed in to the water. When in rotates freely, the digital counter is switched on. A flow rate speed is then given after 30 seconds of testing. Wait another 30 seconds to ensure that the reading displayed is correct since the first reading could be erroneous. 4. Before taking the sample, fill a white porcelain tray with water from the brook. This will allow any fauna collected to survive while the sample is being counted. 5. A 50cm x 50cm quadrat is then placed into the brook. Collect the sample by using the kick sampling technique on areas within the quadrat. The substrate is kicked ten times with the same hardness. The disturbed substrate and organisms is then collected by the net placed down stream. 6. The sample in the net is emptied in to a porcelain tray. It is rinsed with water in the porcelain tray to ensure no life forms are stuck on to the net. 7. Any gammarus pulex identified in the sample is counted. To avoid counting the same shrimp twice, the counted shrimps are removed by a plastic spoon or pipette in to a plastic palette. Once counting is completed the shrimps are returned back in to the brook. 8. All of the remaining substrate and fauna in the porcelain tray are returned in to the river also. 9. Within the vicinity of the quadrant, choose another undisturbed site around 15cm up stream and repeat the process above. A site upstream is used to ensure that the site used is not disturbed when the previous sample is taken. 10. Ten samples should be taken altogether from a site with a certain flow rate. 11. The above is to be repeated with the other nine sites. Testing of water samples The pH, nitrate, and phosphate levels are tested in the laboratory due to the nature of the equipment which has to be used. Nitrate 1. Set test 261 on reflectonmeter. 2. Dip NO3- indicator strip in water sample. 3. Start 60 second count down. 4. The indicator strip should change to a purple colour if nitrates are present. 5. Insert the strip in to the reflectonmeter after 55 seconds. 6. Record the nitrated concentration displayed (mg/l) Phosphate 1. Put 5ml of water sample in to a small bottle. 2. Add in with it 10 drops of H2SO4 (care corrosive). Shake to mix. 3. Select test 124 on reflectonmeter. 4. Start 90 sec countdown. 5. Dip indicator strip in sample. 6. There will not be any colour change if low amounts of phosphate are present. 7. If phosphate levels are below 3mg/l, the reflectonmeter will display LOW. If this happens, use the low phosphate test as below. Low Phosphate 1. Put 5ml of water sample in to a small bottle. 2. Add in with it 5 drops of H2SO4 (care corrosive). 3. Add 1 measure of Reagent 2 then shake for 2min to mix. 4. There should be a colour change of the solution. Compare the colour change with the chart provided to ascertain phosphate level. pH Insert digital pH meter into water sample. Swirl around and wait till reading equilibrates. Record the pH. Safety precautions Make sure that there is someone around at all times, and do not work alone. Do not sample areas in the brook which is too deep. Wear rubber gloves while sampling to avoid infections. Carry a mobile phone in case of an emergency. Give mobile contact numbers to staff. Sign in and out of the field centre so that the staffs know my whereabouts. Analysis of results I will calculate the standard deviation for the data collected from each site of the stream. This will tell me the diversity of the data collected at these sites. I will plot the graph of shrimp density against water current flow. This will inform me of any correlation that may be present between the two variables. I will carry out Spearmans correlation to establish the strength of the correlation between the variables above. I will plot the graph of rate of water flow against dissolve oxygen concentration. This will inform me of any correlation that may be present between the two variables. I will carry out Spearmans correlation to establish the strength of the correlation between the variables above. If there seem to be a linear proportionality between any of the two pairs of variables above, I will calculate the regression line which will enable me to plot a line of best fit onto my graph. This will allow me to carry out interpolations of the data which could give me a chance to carry out further studies in the future to see whether the interpolations are reliable, thus determining the accuracy of this study. By looking at the data for the dissolved oxygen concentration at the different sites and the rate of water flow at each site, it is obvious that there is no correlation between the two variables as I had expected. I will still plot a graph between the two variables and carry out spearmans rank correlation coefficient to support the null hypothesis. Below are examples of how I carried out the statistical analysis. Spearmans rank coefficient Flow rate of water /m/s Density of gammarus pulex R1 R2 d d2 7 8 13 22 14 16 12 7 19 13 ? Conclusion * There is a positive correlation between the current flow rate and the density of gammarus pulex found at the site. * The abiotic factors tested remains constant throughout the river, it is therefore assumed that the varying densities of gammarus pulex collected at different sites are not affected by these. The constant nature of abiotic factors is caused by the moving nature of the water. Any nitrate, phosphate, and oxygen will be well mixed to obtain equilibrium. The temperature of the water remained constant for the same reason. * Contrary to my prediction, the dissolved oxygen level in the stream was indeed higher than that in still water. * If varying oxygen levels are not the main cause for the diversity of shrimp density, the cause could be attributed to the different nature of substrates found at different sources. * Faster sections of the stream have more small stones under which the gammarus may cling for shelter to avoid the current. The stone acts as a barrier for the gammarus against the water. Thus the numbers of gammarus in these faster, rockier sections thrive. In slower sections of the stream, more sediment is deposited. This leads to muddy sections of the river bed. Here, gammarus will have less protection from the streams currents. They would have to burrow under the surface of the muddy substrate. This is far difficult than hiding behind a stone. Smaller numbers of gammarus will be able to remain there, thus its density is the lowest in slower sections of the river. * At faster sections of the stream, fewer other species of fresh water organisms will be able to survive due to them being unable to cling in to rocks and being washed away. This means there is less overlapping of the niches of organisms and thus less competition for the shrimps. This means the shrimp population is able to grow larger than areas with slower current speeds.9 To be sure of the assumption above, more tests need to be carried out in site with flow rates of between 0.05-0.15m/s and ;0.05m/s. Discussion Percentage branch cover. Substrate quality. I mentioned carrying out further tests to find out the accuracy of interpolations make from the available data, it is however more likely that as the flow rate of water is increased further, the increase in the number of gammarus found at these sites will not increase in the same proportions as before. A graph of this is shown below: This is due to other limiting factors such as intra species competition. Evaluation Assumptions made to limit In reality, a wide range of factors would act along with the speed of water flow to affect the gammarus population density. Assumptions were made that other factors will not vary greatly since the sampling was conducted in a single river. Although many important variables were tested to confirm that they are indeed fairly constant, there are fluctuations in the concentration of nitrate () at the different sites. This probably will have had an effect for the sample data. For example, the nitrate concentration at the site with the water flow rate of 0.18m/s is 53mg/l compared with the rest of the sites having a nitrate concentration of about 47mg/l. It is instances like this which may limit the reliabilities of the findings. There may be other abiotic factors which I did not have the means to measure affecting the gammarus pulex density. For example, the calcium carbonate concentration of the water is an important issue concerning the density of shrimps. Shrimps require calcium to form and repair their shells. The assumption was made that all of the shrimps which were collected in each sample were correctly classified and tallied. The fact is that it was far from certain that every single shrimp in sample is indeed counted. The classification of the gammarus made difficult by the amount of substrate brought up along with each sample. Large numbers of shrimps in a single sample made counting difficult since they are mostly fast moving. Difficulties caused by method The method caused unavoidable disturbances to both the water and the substrates of the river bed other than that of the sampled area. This is due to that many groups are conductiong investigations in the stream at once. The disturbed water meant that the various abiotic variables of the river is disturbed. It also affects the speed of water flow as people standing in the river unavoibly obstructs the flow of the river. Sources of error Limitations of method * Uneven kicking It is very hard to control the amount of stream bed disturbed by each kick. Although the number of kicks is kept constant, it is very hard to keep constant the area and amount of substrates and fauna sampled each time. * Not all disturbed substrate collected Due to the width of the net, it is impossible to collect every bit of potential sample that is kicked up. * Equipment cross contamination The reflectometers, pH meters which were shared between the groups could have been contaminated with the samples of other groups. Thus giving a higher NO3- level that the actual value etc. * Not all shrimps sampled It cannot be guaranteed that every gammarus collected in the sample will be counted. This could be caused by the size pf the gammarus, problems with identifying, and gammarus hiding below substrates brought up with the sample. The numbers of gammarus counted should be treated as a bare minimum. * Slightly different speeds at different sites Although several impellor readings are taken at different areas within the 0.25m2 area within the quadrat, it is more than likely that there will be areas in the site where the speed will vary. * The dissolved O2 level meter did not work at the site. Therefore the dissolved O2 levels of the water samples collected in bottles were tested back at the lab. To avoid oxygen to be mixed in to the water while inside the bottle, the bottle was filled completely full to the brim. Due to the concave shape of the lids, some air bubbles remained in the bottle. This could have had an effect on the dissolved oxygen levels recorded. * Other investigations taking place upstream * There were other people conducting investigations up stream. This means that the samples I collect could contain some shrimps that have been disturbed and the carried down the stream by the current. This will increased the number of shrimps I collect in some samples. * Errors in classifying species of shrimp * Precision errors of apparatus ; Meter Rule à ¯Ã‚ ¿Ã‚ ½0.5mm ; Flow meter à ¯Ã‚ ¿Ã‚ ½0.01m/s ; Oxygen meter à ¯Ã‚ ¿Ã‚ ½ 1.5% of total scale of 0.0 19.9mg/l ; Reflectometer à ¯Ã‚ ¿Ã‚ ½0.5mg/l ; Digital thermometer à ¯Ã‚ ¿Ã‚ ½0.3 ; Digital pH meter à ¯Ã‚ ¿Ã‚ ½0.2 These contribute to the percentage errors of the results. Anomalous results Anomalous results are highlighted in red in the result table. These are excluded when the average for each site is calculated. This is so that it will affect the reliability of the data. The anomalies would probably have arisen due to the limitations to the method listed above. Improvements * Sample a larger number of sites to further establish a trend. * Sample different rivers to see if the trend is replicated. * Find regions in the stream where the water current is faster to see if the trend continues linearly, or whether there is a cut off point to this positive correlation. * Retest sites which seem to give anomalous results. * Investigate the contribution of substrate quality to shrimp density * Reflectometers could have been contaminated with water samples of other groups. Since the equipment is shared, other groups using the reflectometer to test water samples would have their water left in the testing slot. This will results in the indictor strip changing its colour to another shade thus registering an anomalous NO3 reading. Further work Futher work should be conducted to investigate the relationship between the substrate quality of different sites of the stream and the number of gammarus pulex these sites contain. * Investigate whether the diversity of fresh water fauna is linked with the speed of the water flowing at the point. This will show whether interspecies competition has a major effect on the population density gammarus pulex.

Cyber attacks the UK and China

Cyber attacks the UK and China Introduction Background information In the 21st century, most countries are focused towards becoming a part of the global economy. Consequently, one of the aspects that governments are concerned about touches on world trade. In a bid to position themselves in the global market, governments are increasingly investing in logistic and supply chain infrastructures such as Information Communication Technology (ICT). Therefore, trade across countries is increasingly being conducted through the Internet.Advertising We will write a custom report sample on Cyber attacks: the UK and China specifically for you for only $16.05 $11/page Learn More A report by the World Economic Forum (2012) asserts that technology has significantly facilitated the flow of goods across countries. Consequently, it is imperative for governments to ensure secure transmission of data. However, cyber attacks by foreign governments, terrorists, and â€Å"hactivists† among others present a major challenge to governments’ in their efforts to establish effective logistic and supply chain infrastructures. Aim The objective of this report is to compare and contrast how the UK and China are facilitating international trade investing in effective logistic and supply chain infrastructure. The report focuses on how the two countries are countering cyber attacks. Analysis Management of cybercrime The UK The UK government ranks cyber attack as one form of major incidents and international terrorism. Consequently, the government is investing heavily in various defence tactics (World Economic Forum, 2012). In 2008, the UK government formed the Police Central e-Crime Unit (PCeU). The unit works in collaboration with the private sector and other law enforcement agencies. The government’s effort to curb cyber crime is also evidenced by the formation of the UK Serious Organised Crime Agency (SOCA). In 2011, the government invested US$1 billion to all the cyber securit y initiatives in the country. The funds were to be used in training experts and developing software to curb cyber attacks (KPMG International, 2011). China Currently, China ranks one of the fastest growing economies in the Middle East (World Economic Forum, 2012). The country’s economic growth has arisen from increment in the volume of trade with other countries. However, China is not fully committed towards fighting cyber crime as evidenced by the fact that the country is considered as the major source of targeted cyber attacks. A report released in 2009 by KMPG International shows that 200 government websites were hacked in China. In an effort to curb such attacks, the Chinese government integrated computer crimes within the country’s criminal law legislation (KPMG International, 2011). Additionally, the Chinese government is also partnering with other organisations such as the Association of Southeast Asian Nations (ASEAN) and the United Nations in an effort to figh t cyber attacks.Advertising Looking for report on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Reflection on the advantages of the strategy adopted by the two governments The above analysis shows that the UK is more effective in dealing with cyber crime as compared to China. The UK government is actively involved in dealing with cyber attacks. For example, by investing in development of new technology and human capital, the UK will be in a position to curb cyber crime more effectively. On the other hand, China’s strategy to deal with cyber crime is more indirect. Consequently, the outcome might not be very pleasing. Lesson learnt Cyber crime presents a major threat in the survival of organisations, which arises from the fact that firms can lose confidential information to hackers hence threatening their future survival. Therefore, it is imperative for firms’ management teams to integrate effecti ve strategies to counter cyber attacks. Conclusion and recommendation To counter cyber attacks, organisations and governments should ensure that effective computer security mechanisms are integrated. Moreover, computer systems should be well configured to eliminate possible gaps that might present an opportunity to hackers. It is also imperative for governments and organisations to review their computer security systems continuously in order to make the necessary improvements. Reference List KPMG International. (2011). Issues monitor, cyber crime; a challenge for  governments. Retrieved from https://home.kpmg/xx/en/home.html World Economic Forum (2012). Outlook on the logistics and supply chain industry. Retrieved from http://www3.weforum.org/docs/WEF_GAC_LogisticsSupplyChainSystems_Outlook_2013.pdf

How students should have an year off before college ( research paper ) Essay

How students should have an year off before college ( research paper ) - Essay Example The reasons for which will be discussed in this paper. However, prior to discussing these privileges, I will first present the possible drawbacks of a college gap year that was not properly planned and thought out by the parents and student. Yes, even for all the perceived benefits of the gap year, there are also negative effects or reasons for doing so. Let's put it this way, Hollywood has produced one too many movies about teenage high school graduates who go backpacking through Europe for all the wrong reasons. Taking a gap year does not mean that a high school graduate should party up a storm and insist in spending it in Europe when the parental units may not be able to afford it. This is not a movie like Eurotrip. Spending a year in Europe just to party is not an economical thing to do. The plane ticket is expensive enough without parents having to shoulder the cost of the child â€Å"exploring† the wrong side of Europe through parties that make the kid stay up late and s leep all day. Nothing remotely related to learning can be gained from that. Some kids also opt to take a year off from school when he is not accepted into his chosen university. The excuse becomes that the gap year is necessary in order to help him prepare to try and gain acceptance into the same university or college next year. A college application rejection is not the end of the world that one should wallow in for a whole year. There is no discounting the fact that getting rejected by any school one submitted an application to is quite upsetting. But the point of getting into college is just that. One learns to deal with rejection and go on with life. By opting to take a year out of the educational system, the student only makes matter worse for himself. Taking a year off will not guarantee that there will be an admission in his future. However, opting to attend a â€Å"safety school† will at least guarantee that the student can try to get a transfer application accepted t he next semester or the next year, depending upon how the grades look for that student. Finally, the biggest mistake a student can make is considering a gap year simply because it will look good on his resume. Just because your college resume might look a little thin on the experience and volunteer side does not mean that there is nothing in it for a decent school board to consider. Those are not the defining moments of your high school career. Instead, what college boards really look for are the good grades and passing marks relevant to the application you put in. The most important question is if a student, without a gap year experience to include in his resume, still has the credentials to make the grade for the college department of his choice (Katz, Gillian â€Å"3 Great Reasons to Take a Gap Year and 3 Bad Reasons to take a Gap Year†). Now, taking into consideration all of the wrong reasons for a student and parents to give in to the lure of a gap year. There must be so me truly good benefits from taking all 365 days off from school. Otherwise it would not be a very big deal for the others who have already successfully taken and used their gap year to advantageous results. Remember that the high school senior year is the most grueling of all high school years. The senior year is the academic year that concentrates on the general college subjects that are per-requisites to

Orestes Essay Example | Topics and Well Written Essays - 750 words

Orestes - Essay Example But both are in big trouble. A faction in Athens wants to execute them both for murder. They turn to their uncle Menelaus for protection, but they are betrayed. Eventually the god Apollo appears and fixes all of the problems between the people, but for some time it was very close. The themes of this play are timeless: family honour, the divine, the meaning of war. Nevertheless, these themes could always use some updating and this was done very effectively at the Getty Villa production of Orestes. To be honest, I was very impressed. The differences between this production and one done in ancient Greek are clear. To begin with, in Greece, the play would have been performed in an amphitheatre; in Getty Villa it was performed on a stage in front of a modern audience in modern day California (a state that would not have been settled back in Ancient Greece). In the traditional performance, the actors would have been all male and would probably have worn masks to show their different emotions. In the modern interpretation their costumes are made of nicer material and they are able to act in very innovative ways (some even using the Stravinsky method or method acting). Some of these things would have been seen by the Ancient Greeks to be improvements on the originalà ¢â‚¬â€for example, they would be sitting in the sun in California instead of in Greece, a country with four distinct seasons. They would probably get used to the actors not using masks, but they may have objected to some of the roles being played by women: ancient Greeks thought women were inferior and should not be allowed to act. This meant that men played the roles of women. It would certainly be strange to see a big burly man playing the role of Helen, the most beautiful woman in the world! One final point, the physical space of any theatre is vital to the success of a performance. I found the use of space at the Getty Villa production wonderful. The acoustics worked perfectly and the actors