Sunday, January 19, 2020
Culture in Piano and Drums by Gabriel Okara Essay -- Culture Symbolism
Culture in Piano and Drums by Gabriel Okara In the poem ââ¬Å"Piano and Drumsâ⬠the poet Gabriel Okara depicts and contrasts two different cultures through symbolism of pianos and drums. The Poem is divided into four stanzas. The first two stanzas represent the ââ¬Å"drumâ⬠culture and the second two stanzas show the ââ¬Å"pianoâ⬠culture. The description of the drums is in two stanzas, but is one sentence long. The first line of the first stanza: ââ¬ËWhen at break of day at a riversideââ¬â¢ Uses trochees to emphasize the deliberate broken rhythm. The stanza has savage words, ââ¬Å"bleeding flesh,â⬠ââ¬Å"urgent raw,â⬠ââ¬Å"leopard snarling,â⬠ââ¬Å"spears poised,â⬠to show that this is a primitive culture, one which has dependency on the environment, as is represented by the ââ¬Å"hunters crouch with spears poised.â⬠The environment in this culture is physically dangerous, surrounded by wild animals. Drums here are a way of communication, and ââ¬Å"jungle drums telegraphing the mystic rhythm, urgent, rawâ⬠¦Ã¢â¬ shows the way of life in this culture. This is life which is simple, near the beginnings of man. The stanza uses alliteration, consonances and similes to give a rhythm that is like that of a drum. Threatening imagery is also used to give the image of danger and show physical hazards. The first stanza mainly describes the way of life and sets the scene. It shows how the drums are associated with the jungle and a primitive way of life. In the second stanza the persona says how when he hears the drums, he goes back to his youth, ââ¬Å"my blood ripples, turns torrent, topples the years...â⬠reminiscent of his childhood to when things were simpler and carefree, ââ¬Å"in my motherââ¬â¢s lap a suckling.â⬠The repetition of the ââ¬Ëtââ¬â¢ sound in ââ¬Å"turns, torrent and top... ...â⬠shows how he is lost between the two societies- between his background and upbringing and what he is aspired to be. ââ¬Å"Wandering in the mystic rhythm of jungle drums and the concerto.â⬠The poem follows a logical format with each stanza beginning with ââ¬Å"When, And, Then and And.â⬠The connotations of each instrument contrast with one another, with Drums illustrating primitive behaviour, and a savage, dangerous culture. The connotations of the piano are complex and technical. The piano uses significantly different word sounds, showing that it is learnt, westernized and intricate compared to the drums which is instinctive and naturally acquired, and simple. The poem uses no set rhyme pattern which suits the poem as it has an undecided effect, emphasizing the confusion of the persona over his future. There is some iambic use as well as the use of trochees.
Saturday, January 11, 2020
Engine powered by liquid hydrogen
Wide Range of Flammability:In comparing with all other fuels, Hydrogen has a really broad scope of flammability. Hence, Hydrogen can be combusted in an internal burning engine over a broad scope of fuel-air mixtures. One of the important advantages of this is that Hydrogen fuel can run a really thin mixture. A thin mixture is one in which the sum of fuel is less than the theoretical, stoichiometric or chemically ideal sum needed for burning with a given sum of air. This is why it is reasonably easy to acquire an engine to get down on H. In general, fuel economic system is greater and the burning reaction is more complete when a vehicle is run on a thin mixture. Besides, the concluding burning temperature is lower hence cut downing the sum of pollutants, such as N oxides, emitted in the fumes. However, there is a bound to how thin the engine can be run, as thin operation can significantly cut down the power end product due to a decrease in the volumetric heating value of the air/fuel mixtureLow Ignition Energy:Ignition energy is the energy needed to light a fuel. Hydrogen has really low ignition energy. The sum of energy needed to light H is about one order of magnitude less than that required for gasolene. The feature of low Ignition energy enables hydrogen engines to light thin mixtures and besides ensures prompt ignition. Unfortunately, the low ignition energy besides carries the hazard that hot gases and hot musca volitanss on the cylinder can function as beginnings of ignition and hence making jobs such as premature ignition and flashback. Preventing the above mentioned jobs is one of the jobs associated with runing an engine on H. The broad flammability scope of H agencies that about any mixture can be ignited by a hot topographic point.Small Quenching Distance:Hydrogen has a little extinction distance, even smaller than that of gasolene. Hence, it ââ¬Ës more hard to slake a H fire than a gasolene fire. The inclination for blowback additions as a consequence of smaller extinction distance, since the fire from a hydrogen-air mixture more readily passes a about closed consumption valve, than a hydrocarbon-air fire.High Auto-Ignition Temperature:Hydrogen has a comparatively high auto-ignition temperature. This characteristic is of import because the hydrogen-air mixture has to be compressed and the refore plays an of import function in finding the compaction ratio that an engine can utilize, since the temperature rise during compaction is related to the compaction ratio. The temperature should non transcend the auto-ignition temperature, as this would do a premature ignition. Hence, the absolute concluding temperature controls the compaction ratio. The high car ignition temperature of H allows larger compaction ratios to be used in a H engine than in a hydrocarbon engine. On the other manus, H is hard to light in a compaction ignition or Diesel constellation, because the temperatures needed for those types of ignition are comparatively high.High Flame SpeedHydrogen has high fire velocity at stoichiometric ratios. Under these conditions, the H fire velocity is about an order of magnitude higher ( faster ) than that of gasolene. This means that H engines can more closely approach the thermodynamically ideal engine rhythm. At leaner mixtures, nevertheless, the fire speed decreases significantly.High DiffusivityHydrogen has really high diffusivity. This ability to scatter in air is well greater than gasolene and is advantageous for two chief grounds. Fir st, it facilitates the formation of a unvarying mixture of fuel and air. Second, if a H leak develops, the H disperses quickly. Therefore, insecure conditions can either be avoided or minimized.Low DensityHydrogen has really low denseness. This consequences in two jobs when used in an internal burning engine. First, a really big volume is necessary to hive away adequate H to give a vehicle an equal drive scope. Second, the energy denseness of a hydrogen-air mixture, and therefore the power end product, is reduced.Fuel Delivery SystemsHydrogen fuel bringing system can be broken down into three chief types:Cardinal injection ( or ââ¬Å"carburettedâ⬠)Port injectionDirect injectionCentral and port fuel bringing systems injection forms the fuel-air mixture during the intake shot. In the instance of cardinal injection or a carburetor, the injection is at the recess of the air intake manifold. In the instance of port injection, it is injected at the recess port. Direct cylinder inje ction is more technologically sophisticated and involves organizing the fuel-air mixture inside the burning cylinder after the air consumption valve has closed.Cardinal Injection or Carburetted Systems:The simplest method of presenting fuel to a H engine is by manner of a carburetor or cardinal injection system. This system has advantages for a H engine. First, cardinal injection does non necessitate the H supply force per unit area to be every bit high as for other methods. Second, cardinal injection or carburetors are used on gasolene engines, doing it easy to change over a standard gasolene engine to hydrogen or a gasoline/hydrogen engine. The disadvantage of cardinal injection is that it is more susceptible to irregular burning due to pre-ignition and back fire. The greater sum of hydrogen/air mixture within the consumption manifold compounds the effects of pre-ignition.Port Injection SystemsThe port injection fuel bringing system injects fuel straight into the consumption manifold at each consumption port, instead than pulling fuel in at a cardinal point. Typically, the H is injected into the manifold after the beginning of the consumption shot. At this point conditions are much less terrible and the chance for premature ignition is reduced. In port injection, the air is injected individually at the beginning of the consumption shot to thin the hot residuary gases and cool any hot musca volitanss. Since less gas ( H or air ) is in the manifold at any one clip, any pre-ignition is less terrible. The recess supply force per unit area for port injection tends to be higher than for carburetted or cardinal injection syste ms, but less than for direct injection systems. The changeless volume injection ( CVI ) system uses a mechanical cam-operated device to clip the injection of the H to each cylinder. The CVI block is shown on the far right of the exposure with four fuel lines go outing on left side of the block ( one fuel line for each cylinder ) . The electronic fuel injection ( EFI ) system meters the H to each cylinder. This system uses single electronic fuel injectors ( solenoid valves ) for each cylinder and pumped to a common fuel rail located down the Centre of the consumption manifold. Whereas the CVI system uses changeless injection timing and variable fuel rail force per unit area, the EFI system uses variable injection timing and changeless fuel rail force per unit area.Direct Injection SystemsMore sophisticated H engines use direct injection into the burning cylinder during the compaction shot. In direct injection, the consumption valve is closed when the fuel is injected, wholly avoiding premature ignition during the intake shot. Consequently the engine can non backlash into the consumption manifold. The power end product of a direct injected H engine is 20 % more than for a gasolene engine and 42 % more than a H engine utilizing a carburetor. While direct injection solves the job of pre-ignition in the consumption manifold, it does non needfully forestall pre ignition within the burning chamber. In add-on, due to the reduced commixture clip of the air and fuel in a direct injection engine, the air/fuel mixture can be non-homogenous. Surveies have suggested this can take to higher NOx emanations than the non-direct injection systems. Direct injection systems require a higher fuel rail force per unit area than the other.Thermal DilutionPre-ignition conditions can be curbed utilizing thermic dilution techniques such as fumes gas recirculation ( EGR ) or H2O injection. As the name implies, an EGR system re-circulates a part of the fumes gases back into the consumption manifold. The debut of exhaust gases helps to cut down the temperature of hot musca volitanss, cut downing the possibility of pre-ignition. Additionally, re-circulating fumes gases cut down the peak burning temperature, which reduces NOx emanations. Typically a 25 to 30 % recirculation of fumes gas is effectual in extinguishing blo wback. On the other manus, the power end product of the engine is reduced when utilizing EGR. The presence of exhaust gases reduces the sum of fuel mixture that can be drawn into the burning chamber. Another technique for thermally thining the fuel mixture is the injection of H2O. Injecting H2O into the H watercourse prior to blending with air has produced better consequences than shooting it into the hydrogen-air mixture within the consumption manifold. A possible job with this type of system is that H2O can acquire assorted with the oil, so care must be taken to guarantee that seals do non leak.Engine DesignThe most effectual agencies of commanding pre-ignition and knock is to re-design the engine for H usage, specifically the burning chamber and the chilling system. A discoid burning chamber ( with a level Piston and chamber ceiling ) can be used to cut down turbulency within the chamber. The disc form helps bring forth low radial and digressive speed constituents and does non magnify recess whirl during compaction. Since unburned hydrocarbons are non a concern in H engines, a big bore-to-stroke ratio can be used with this engine. To suit the wider scope of fire velocities tha t occur over a greater scope of equality ratios, two flicker stoppers are needed. The chilling system must be designed to supply unvarying flow to all locations that need chilling. Extra steps to diminish the chance of pre ignition are the usage of two little exhaust valves as opposed to a individual big one, and the development of an effectual scavenging system, that is, a agency of displacing exhaust gas from the burning chamber with fresh air.Ignition SystemsDue to hydrogen ââ¬Ës low ignition energy bound, lighting H is easy and gasoline ignition systems can be used. At really thin air/fuel ratios ( 130:1 to 180:1 ) the fire speed is reduced well and the usage of a double flicker stopper system is preferred. Ignition systems that use a waste flicker system should non be used for H engines. These systems energize the flicker each clip the Piston is at top dead Centre whether or non the Piston is on the compaction stroke or on its exhaust shot. For gasolene engines, waste flicke r systems work good and are less expensive than other systems. For H engines, the waste flickers are a beginning of pre-ignition. Spark stopper for a H engine should hold a cold evaluation and have non-platinum tips. A cold-rated stopper is one that transfers heat from the stopper tip to the cylinder caput quicker than a hot-rated flicker stopper. This means the opportunities of the flicker stopper tip lighting the air/fuel charge is reduced. Hot rated spark stoppers are designed to keep a certain sum of heat so that C sedimentations do non roll up. Since H does non incorporate C, hot-rated flicker stoppers do non function a utile map. Platinum-tip flicker stopper should besides be avoided since Pt is a accelerator, doing H to oxidise with air.Crankcase Ventilation:Crankcase airing is even more of import for H engines than for gasolene engines. As with gasolene engines, un-burnt fuel can ooze by the Piston rings and enter the crankcase. Since H has a lower energy ignition bound than gasolene, any un-burnt H come ining the crankcase has a greater opportunity of lighting. Hydrogen should be prevented from roll uping through airing. Ignition within the crankcase can be merely a startling noise or consequence in engine fire. When H ignites within the crankcase, a sudden force per unit area rise occurs. To alleviate this force per unit area, a force per unit area alleviation valve must be installed on the valve screen. Exhaust gases can besides ooze by the Piston rings into the crankcase. Since H fumes is H2O vapor, H2O can distill in the crankcase when proper airing is non provided. The commixture of H2O into the crankcase oil reduces its lubrication ability, ensuing in a higher grade of engine wear.Emissions:The burning of H with O green goodss H2O as its lone merchandise: 2H2 + O2 = 2H2O The burning of H with air nevertheless can besides bring forth oxides of N ( NOx ) : H2 + O2 + N2 = H2O + N2 + NOx The oxides of N are created due to the high temperatures generated within the burning chamber during burning. This high temperature causes some of the N in the air to unite with the O in the air. The sum of NOx formed depends on:The air/fuel ratioThe engine compaction ratioThe engine velocityThe ignition timingWhether thermic dilution is utilisedIn add-on to oxides of N, hints of C monoxide and C dioxide can be present in the fumes gas, due to ooze oil combustion in the burning chamber. Depending on the status of the engine ( combustion of oil ) and the operating scheme used ( a rich versus thin air/fuel ratio ) , a H engine can bring forth from about zero emanations ( every bit low as a few ppm ) to high NOx and important C monoxide emanations. Power End product: The theoretical maximal power end product from a H engine depends on the air/fuel ratio and fuel injection method used. As mentioned in above, the stoichiometric air/fuel ratio for H is 34:1. At this air/fuel ratio, H will displace 29 % of the burning chamber go forthing merely 71 % for the air. As a consequence, the energy content of this mixture will be less than it would be if the fuel were gasolene ( since gasolene is a liquid, it merely occupies a really little volume of the burning chamber, and therefore allows more air to enter ) . Since both the carburetted and larboard injection methods mix the fuel and air prior to it come ining the burning chamber, these systems limit the maximal theoretical power gettable to about 85 % of that of gasolene engines. For direct injection systems, which mix the fuel with the air after the consumption valve has closed ( and therefore the burning chamber has 100 % air ) , the maximal end product of the engine can be about 15 % higher than that for gasolene engines. Therefore, depending on how the fuel is metered, the maximal end product for a H engine can be either 15 % higher or 15 % less than that of gasolene if a stoichiometric air/fuel ratio is used. However, at a stoichiometric air/fuel ratio, the burning temperature is really high and as a consequence it will organize a big sum of N oxides ( NOx ) , which is a criteria pollutant. Since one of the grounds for utilizing H is low exhaust emanations, H engines are non usually designed to run at a stoichiometric air/fuel ratio. Typically hydrogen engines are designed to utilize approximately twice every bit much air as theoretically required for complete burning. At this air/fuel ratio, the formation of NOx is reduced to near nothing. Unfortunately, this besides reduces the power end product to about half that of a likewise sized gasolene engine. To do up for the power loss, H engines are normally larger than gasolene engines, and/or are equipped with turbochargers or superchargers.Hydrogen Gas Mixtures:Hydrogen can be used well in internal burning engines as an linear to a hydrocarbon fuel. Hydrogen is most normally assorted with high force per unit area natural gas for this intent since both gases can be stored in the same armored combat vehicle. If H is blended with other fuels, it normally has to be stored individually and assorted in the gaseous province instantly before ignition. In general, it is impractical to utilize H in concurrence with other fuels that besides require bulky storage systems, such as propane. Gaseous H can non be stored in the same vas as a liquid fuel. Hydrogen ââ¬Ës low denseness will do it to stay on top of the liquid and non blend. Furthermore, liquid fuels are stored at comparatively low force per unit areas so that really small H could be added to the vas. Liquid H can non be stored in the same vas as other fuels. Hydrogen ââ¬Ës low boiling point will stop dead other fuels ensuing in fuel ââ¬Å"iceâ⬠. Hydrogen can be used in concurrence with compact liquid fuels such as gasolene, intoxicant or Diesel provided each are stored individually. In these applications, the fuel armored combat vehicles can be formed to suit into fresh infinites on the vehicle. Existing vehicles of this type tend to run utilizing one fuel or the other but non both at the same clip. One advantage of this scheme is that the vehicle can go on to run if H is unavailable. Hydrogen can non be used straight in a Diesel ( or ââ¬Å"compression ignitionâ⬠) engine since H ââ¬Ës car ignition temperature is excessively high ( this is besides true of natural gas ) . Therefore, diesel engines must be outfitted with spark stoppers or utilize a little sum of Diesel fuel to light the gas ( known as pilot ignition ) . Although pilot ignition techniques have been developed for usage with natural gas, no 1 is presently making this with H. One commercially available gas mixture known as Hythane contains 20 % H and 80 % natural gas. At this ratio, no alterations are required to a natural gas engine, and surveies have shown that emanations are reduced by more than 20 % . Mixtures of more than 20 % H with natural gas can cut down emanations further but some engine alterations are required. Thin operation of any internal burning engine is advantageous in footings of oxides of nitrogen emanations and fuel economic system. For hydrocarbon engines, thin operation besides leads to take down emanations of C monoxide and unburned hydrocarbons. As more O is available than required to burn the fuel, the extra O oxidizes more C monoxide into C dioxide, a less harmful emanation. The extra O besides helps to finish the burning, diminishing the sum of unburned hydrocarbons. As with H, the drawback of thin operation with hydrocarbon fuels is a decreased power end product. Thin operation of hydrocarbon engines has extra drawbacks. Thin mixtures are difficult to light, despite the mixture being above the LFL of the fuel. This consequence in dud, which increases unburned hydrocarbon emanations, reduces public presentation and wastes fuel. Another disadvantage is the decreased transition efficiency of 3-way catalytic convertors, ensuing in more harmful emanations. To some extent, blending H with other hydrocarbon fuels reduces all of these drawbacks. Hydrogen ââ¬Ës low ignition energy bound and high firing velocity makes the hydrogen/hydrocarbon mixture easier to light, cut downing dud and thereby bettering emanations, public presentation and fuel economic system. Sing power end product, H augments the mixture ââ¬Ës energy denseness at thin mixtures by increasing the hydrogen-to-carbon ratio, and thereby improves torsion at wide-open throttle conditions.Current Status:A few car makers have been making some work in the development of hydrogen-powered vehicles ( Ford has late announced that they have developed a ââ¬Å"production readyâ⬠hydrogen-powered vehicle utilizing an ICE and BMW has completed a universe circuit exposing a twelve or so hydrogen-powered 750i vehicles ) . However, it is non likely that any hydrogen-powered vehicles will be available to the populace until there is an equal re-fuelling substructure and trained tech nicians to mend and keep these vehicles. Like current gasoline-powered vehicles, the design of each H powered vehicle will most likely vary from maker to maker and theoretical account to pattern. One theoretical account may be simple in design and operation, for illustration, a thin combustion fuel metering scheme utilizing no emanation control systems such as EGR, catalytic convertor, evaporate fuel case shot, etc. Another theoretical account may be really sophisticated in design and operation, for illustration, utilizing an EGR fuel metering scheme with a catalytic convertor, multiple flicker stoppers, etc. Until such clip that a H substructure exists, hydrogen/natural gas fuel blends provide a logical passage to to the full hydrogen-powered vehicles. These vehicles can run on either fuel, depending on handiness
Friday, January 3, 2020
Thursday, December 26, 2019
Foundation of Molecular Biology - 3718 Words
1. Write an essay on protein structure and synthesis Protein synthesis is a cellular process leading to the production of proteins. This term is also synonymous to protein translation. It begins with a sequential process of transcription of DNA into mRNA, which is then used as input for translation after exon-intron splicing. The addition of successive tRNA molecules based on the code of mRNA matched up by base-pairing through their anti-codons in the ribosomes creates the nascent protein. After the protein chain has been synthesized, post-translation modification occurs, e.g. phosphorylation, motifs added to the protein. This may happen at various levels: secondary (alpha-helix, beta-sheets, turn, random coiling), tertiary andâ⬠¦show more contentâ⬠¦It happens in stages. First, a signalling molecule activates a receptor on the membrane. Second, a second messenger that will perpetuate the signal into the cell will bne activated to elicit a physiological response. Examples of such process involve cAMP, calcium signaling, and kina ses. 4. Write an essay on the uses of polymerase chain reaction in molecular biology The polymerase chain reaction (or PCR) is a molecular technique for the amplifyication of a single or a few copies of DNA strands across several orders of magnitude, generating thousands to even millions of copies of a particular DNA strand with the specific primers and a thermo-resistant polymerase enzyme. This powerful technique is being applied in medicine, eg, detection of gene mutation in cancers and tailoring of therapies; infectious diseases,eg detection of pathogens and infections; agriculture, analysis of cultuvars; and forensics, eg identification of criminal from sperm during rape cases. The polymerase chain reaction in molecular biology also allows scientist and medical professionals to replicate copies of specific DNA sequences in millions in a matter of few hours. In plain language, this allows researchers to photocopy or Xerox specific DNA sequences in a short period of time. They to replicating or duplicating specific DNA sequences however is a familiarity of a part of the sequence of the DNA molecules. This primers can be later synthesized toShow MoreRelatedThe Integration Of Computers And Software Tools940 Words à |à 4 Pagescrucial for biological investigation. Consequently, bioinformatics has been established as a major discipline in molecular biology. It encompasses a numerous subject areas, such as structural biology and genomics to more complex areas such as gene expression studies. However, bioinformatics is commonly confused with a discipline of science known as computational biology. Computational biology is the development and application of theoretical and analytical methods, which are combined with mathematicalRead MoreSample Resume : School Of Science Health1613 Words à |à 7 Pagesright to not mark this assignment if the above declaration has not been signed. 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Specifically, I conducted research to determine the means byRead MoreStatement of Purpose1037 Words à |à 5 Pagesenvironment. Is a disease caused by a pathogenic microorganism, a to xic agent in the environment, or a faulty gene? My interest in molecular biology has been inspired by these questions and led me to the world of genetics. While I was an elementary student, my mother was diagnosed with cervical cancer. From that situation, I developed an insatiable curiosity for cancer and molecular medicine. I am particularly interested in gene structure and function and genetic analysis of cancer, a broad group of diseasesRead MoreThe, No Bread For Thanksgiving1148 Words à |à 5 Pagesceliac disease, is better understood. Advanced methods in molecular biology have allowed scientists to increase their knowledge of how coeliac disease works. 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My undergraduate studies gave me an opportunity to learn a wide variety of concepts in human genetics along with chemistry, biochemistry, molecular biology, and biotechnology. As part of my curriculum, I worked for a summer research projectRead MoreA Study On The Community Health Course1187 Words à |à 5 Pagesmodule covered under the Biochemistry module include; Introduction to Biochemistry, Molecular biology and molecular immunity, Metabolism and Metabolic Disorders I, Metabolism and Metabolic Disorder II, Hormones and Nutrition, During the 1st year we covered an introduction to biochemistry course covering the chemicals of, life and cell biology and DNA structure and replication. In the molecular biology and molecular immunity module, we covered we cover the concep t of protein synthesis and the cellRead MoreThe Burns School Of Medicine790 Words à |à 4 PagesGovernor at the time and namesake of the school, John A. Burns decided to turn it into a medical training facility. Governor Burns set a foundation for the goals and philosophies of this now community-centered medical school. 2. Admissions Info Students applying to JABSOM should have completed course work in the areas of general biology, molecular and cell biology, general chemistry, biochemistry, general physics, and organic chemistry. JABSOMââ¬â¢s classes are usually from socially, educationally, or
Wednesday, December 18, 2019
Teenage Dating Essay - 924 Words
Teenage Dating : Allowed or Not? Nowadays, many teenagers in junior high school already have boyfriends or girlfriends. It is not really an uncommon thing anymore in teenagers point of view lately. Teenagers in junior high school who already have boyfriends or girlfriends are just following their natural interest which usually goes to dating. People see this nowadays as there are many young teenagers who still in junior high school to what they called ââ¬Ëhang outââ¬â¢ or dating in many places. Some people donââ¬â¢t mind about any young teenagers dating because it has some bright side, however there are some people who disagree with it because it also have negative effects. Parents should not let their teen-aged children in junior high schools toâ⬠¦show more contentâ⬠¦Teenagers in junior high school arenââ¬â¢t ready to have a boyfriends or girlfriends because their inability to maintain a relationship, no self control, unreadiness of any consequences. Thus, parents should not allow their children in junior high schools to have boyfriends orShow MoreRelatedTeenage Dating Essay918 Words à |à 4 PagesTeenage Dating : Allowed or Not? Nowadays, many teenagers in junior high school already have boyfriends or girlfriends. It is not really an uncommon thing anymore in teenagers point of view lately. Teenagers in junior high school who already have boyfriends or girlfriends are just following their natural interest which usually goes to dating. People see this nowadays as there are many young teenagers who still in junior high school to what they called ââ¬Ëhang outââ¬â¢ or dating in many places. SomeRead More Teenage Dating in the 1950s Essay examples3457 Words à |à 14 PagesTeenage Dating in the 1950s Teenagers in the 1950s are so iconic that, for some, they represent the last generation of innocence before it is lost in the sixties. When asked to imagine this lost group, images of bobbysoxers, letterman jackets, malt shops and sock hops come instantly to mind. Images like these are so classic, they, for a number of people, are as American as apple pie. They are produced and perpetuated by the media, through films like Grease and Pleasantville and televisionRead MoreAnalysis of the Representation of Women in Magazines Essay714 Words à |à 3 PagesAnalysis of the Representation of Women in Magazines In this essay, I am going to analyse how girls and women are represented in a range of magazines. Depending on the target audience, the contents of the magazine differs. This essay will look and describe the differences between the magazines and why they are there. The age groups and magazines I will be examining are; teenage with the magazine ââ¬ËSneak,ââ¬â¢ twenty somethings with the magazine ââ¬ËGlamour,ââ¬â¢ and middle agedRead MoreAnalysis Of The Breakfast Club 1243 Words à |à 5 PagesBrain vs. Thief Masterfully exploring teenage tropes, The Breakfast Club imbues major juxtapositions highlighting secondary educational environments. Associations that distinguish key comparisons governing teenage social hierarchies. The Breakfast Club displays such observations through its main characters. Furthermore, each main character ascribes to the role of a high school stereotype. The film defines such archetypes as the Jock, the Brain, the Basket Case, the Princess, and the Criminal. TwoRead MoreCommon Sense Explanations And The Explanations Of C. Wright Mills Theory Of The Sociological Imagination1534 Words à |à 7 PagesIn this essay I will be exploring the differences between common sense explanations and the explanations of C. Wright Mills theory of The Sociological Imagination. Common sense is based on people s personal experiences and their opinions, very often constructed from social norms and generalised views. Whereas, the Sociological Imagination thought up by sociologist C. Wright Mills (1959) is based on the ideas of thinking critically and skeptically, in order to think sociologically. He wrote thatRead MoreThe Berlin Boxing Club By Robert Sharenow1470 Words à |à 6 Pageschose to read The Berlin Boxing Club by Robert Sharenow. The original reason I chose it was because the author is actually my uncle. Turns out it was a great choice as I greatly enjoyed reading this novel. The book is from the perspective of Jewish a teenage boy and his family during the 1930s in Nazi Germany. I gained new perspective on the culture in germany during world war two through the eyes of a teenager. I would definitely recommend this book to the history department to be added to the curriculumRead MoreHow Can Society Prevent and Avoid Unwanted Teenage Pregnancy?3437 Words à |à 14 PagesProblem-Solution Essay Outline Essay question: How can society prevent and avoid unwanted teenage pregnancy? Outline Topic: Teenage Pregnancy Can Be Overstepped. I. Introduction Due to increased number of teenage pregnancy todayââ¬â¢s society should take serious steps to prevent it and improve the situation by supplying a better sexual education at home and at school by both their parents and teachers. II. Background Teenage pregnancy is a large and growing problem over the world especially now whenRead More Sex and Relationship Education (SRE) Essay2622 Words à |à 11 Pagescan either be given at home to the child by parents, in school by teachers, or in youth organizations, alternative educational institutions, or youth offending organizations by Shine staffs or trained peer educators and volunteers (Levy 1992). This essay is mainly going to focus on the teacher-led SRE given in school and discuss whether it is beneficial or not, with the support of the positive outcome of children having SRE in relation of STDs, pregnancy and peer violence, and also the actual factRead MorePublic Service At The Station1434 Words à |à 6 Pagesbribed to play certain songsâ⬠(Kellogg 2016). As a result of this occurring, distributors became more cautious regarding the stations they communicated with. Despite this, protest folk alongside rock and roll on the airwaves molded the identity of her teenage ye ars growing up in the fifties and sixties. She was never a fan of social convention and not hesitant in standing by her opinions, even those of an unpopular nature. She was a liberal thinker living amongst conservative minds. Many of the friendsRead MoreThe Effects Of Domestic Violence On Children And Girls2677 Words à |à 11 Pageshildhood and youth in context essay. ââ¬Å"Definitions of domestic violence are socially constructed, have developed over time, and reflect prevailing understandings, interests and power distributionsâ⬠(Muehlenhard Kimes 1999) ââ¬â This is an issue as this leaves what constitutes as abuse in the hands of the perpetrator and also leaving victims of domestic abuse confused and isolated. Domestic abuse is an issue that tends to stereotype perpetrators as being violent male adults and victims of domestic
Tuesday, December 10, 2019
George Washingtons Proclamation of Neutrality free essay sample
The French Revolution divided the newly founded country of the United States of America. The country needed to pick a side between the French and the English. The Secretary of Treasury Alexander Hamilton wanted to keep ties with Britain for economic reasons. The Minister to France Thomas Jefferson felt that they were obligated to help France after what they did for the United States during the American Revolution.1 While Hamilton and Jefferson each had their own side with many supporters behind them, President George Washington decided to make America neutral in the war between Britain and France. In April of 1793, President Washington issued a proclamation of neutrality.1 President Washington felt that neutrality was the best option for the foreign affairs of the United States so that it could grow and then later become a powerful nation. The French Revolution did not involve only Britain and France. Both countries had allies. The countries involved in the war needed natural resources to supply their part in the war. We will write a custom essay sample on George Washingtons Proclamation of Neutrality or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The United States was a big country even with only 13 states at the time. This land was also not inhabited as much as some other European countries. This made the United States a threshold for natural resources. This was great for American trading with other countries that needed resources for the war. If the United States were to pick an ally, they would cut off trade with either France or Britain and each of those countriesââ¬â¢ allies. This would cause a huge lose in trading and not help the country grow and get out of its own debt from their own revolution. At the time of the French Revolution, the United States was still a young country. War is very expensive to be a part of. The United Sates just came out of their own revolutionary war and needed to pay off the debt of it. They wouldnââ¬â¢t be able to afford financing another war. Wars also create enemies. The United States would not want to start its first three decades creating more enemies then they had to. This could cause economic strains between other countries and could be problematic in any future conflicts. If the United States joined either Britain or France, there could have been many political and economical strains that could have still existed today. For example, because of the potential tensions between the US and France or the US and Britain, the US would not have joined the World Wars and the end result could have been much different. The United States was too much in debt and to young to finance a war and to make new enemies with other countries. The United States had some of their own issues to resolve in their own country. They had to deal with the Louisiana Purchase that involved buying a third of the continent of North America for $15 million from France.1 They also had to deal with the Alien and Sedition Acts. These acts were to try and silence the republicans on the decisions of George Washington and John Adams and to try to limit the amount of immigrants coming into the country.1 They couldnââ¬â¢t waste their time and money with war when they had to deal with their own internal affairs to build their country into a world super power. The United States is among the youngest countries in the world and is one of the most powerful. Since President Washington issued the proclamation of Neutrality in 1793, and up to the World Wars, America has tried to stay out of most conflicts. There may have been good reasons to join either Britain or France in their affairs, but the United States was just too young to join the war of the French Revolution and did not have the funds to grow and become the country that it is today.
Monday, December 2, 2019
Nike Essays (1238 words) - Nike, Inc., Phil Knight, Bill Bowerman
Nike The Nike Foundation, formerly the Nike P.L.A.Y. Foundation, is reflection of the Nike Cultures. Nike is committed to assisting youth to achieve both their personal goals as well as to contribute to the overall betterment of our society. The focus of Nike's resources will be applied to your empowerment, sports, after-school programs, and community and environmental learning to develop skills, build confidence, and to apply critical thinking to solutions to individuals, community and global concerns. Corporate Responsibility Nike's mission for corporate responsibility is to lead in corporate citizenship through programs that reflect caring for the world family of Nike, our teammates, our consumers, and those who provide services to Nike. Nike has more that 500 contract factories around the world in about 45 countries. In May 1998, Nike set out six new corporate responsibility goals for these factories. Rather than address the goals and progress across all 500 factories. Yae Kwang Vina, a Korean owned and operated footwear manufacturer in Vietnam. To begin, Tae Kwang Vina is referred to as VT by Nike's contract manufacturing group. VT just celebrated its fourth birthday. It has 10 production assembly lines and 10,000 people, who together produce 500,000 pairs of Nike's best running shoes each month. Since it was established in the summer of 1995, VT has been run by a Tae Kwang vice president, C.T. Park, who has worked closely with Nike on corporate responsibility implementation and has done some things on his own, like donating almost $300.000 to local community projects like housing for war widows. C.T., like hundreds of other factory directors, was consulted about the proposed steps, and then briefed on the May 1998 initiatives just before Phil Knight ********************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************4 All-Americans and 19 Olympians. No other coach has had a greater impact on American track and field that Bill Bowerman. Bowerman once determined that every ounce shaved off a miles shoe was 200 fewer pounds lifted in a race. With that in mind, he began crafting special shoes for his athletes. In 1964, teamed up with former Oregon student and runner, Phil Knight, to form Blue Ribbon Sports, the forerunner of Nike. Bowerman's innovative designs and Knight's business acumen were the perfect fit and by the time BRS became Nike in 1972 sales were at $1.96 million. Environmental Responsibility Nike Inc. has been an industry leader in developing new technologies which we have given away to out competitors. In the early 1990's, it was becoming evident that governments were becoming more and more regulatory in how footwear was produced and from where it was imported. By 1992, Nike made the environment and worker health and safety a major corporate goal. Between that time and the present, Nike, in conjunction with its subcontract factories and their suppliers, developed many new technologies such as waterbase adhesives and primers for footwear, waterbase mold releases, detergents for outsole degreasing. mold cleaning and as flushing agents. Between 1995 and 1999, Nike has reduced its per pair usage of organic solvents from 340 grams/pair to slightly more that 50 grams/pair, an 83% reduction. At the same time, it developed recycling programs for adhesive and primer containers. It has reduced scrap levels of EVA and rubber through internal recycling programs and its reuse-a-shoe program. In November of 1998, Nike held an open forum in Bangkok, Thailand, for footwear manufacturers on its advances in the area of Green Technology. All of the above technologies were made available to Nike's competitors along with detailed explanations and a complete question and answer period, it also includes a tour of a Nike factory that has implemented a great many of these advances. Product Produced A long history of experimentation and innovations at Nike provides proof positive that producing top-quality athletic footwear is far from simple. The process requires an extensive cast of sports specialists working in close partnerships with athletes and coaches, conducting in-depth research in the world-class Nike Sports Research Lab, studying cutting-edge technology. In short these specialists do everything in their specific performance needs to both professional and amateur athletes. And, since Nike is dedicated to producing the highest quality product possible, not even the smallest detail is overlooked during the design, development and production of each and every Nike shoe. The only problem is...this entire process takes time and money.
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