IndyCar Racing - We Need Speed :: Argumentative Persuasive Topics

Every year on Memorial Day auto racing fans around the world wake up in anticipation to see the most famous race in the world. The Indianapolis 500 is an annual IndyCar race that has been run since 1916 at the Indianapolis Motor Speedway. It is a race of great tradition that is supposed to represent the fastest racers in the sport at the fastest raceway in the sport. However, Tony George, President of the Indianapolis Motor Speedway and the IRL, is changing everything about the race and the sport. This year at Indy, Tony George and his Indy Car Racing League (IRL)) broke a long standing tradition at Indy and forced another race to occur on the same day. In Michigan the US 500 was raced on the same day by members of CART (Championship Auto Racing Teams) in protest to the IRL. It was the first time another race was held opposite of the Indy 500. There were a record 17 rookies starting at Indy because many of the more experienced drivers were racing at Michigan. There was only one driver in the race who had won at Indy before. The IRL had dramatically changed the Indy 500. The IRL and CART are two racing leagues with opposing views on where the sport of auto racing is going. CART is supporting the way the sport has been progressing in recent years. That includes trying to increase the speed of the cars at whatever means possible. The IRL was formed a few years ago under the direction of Tony George. He is trying to make the sport less expensive and safer by using different motors /chassis and slowing down speeds. Racing has always been about going faster than the next driver. It was about trying to beat course records and lap speeds. But if Tony George has his way, all course speeds will be reduced due to switching from turbo Indy V6 engines to normally aspirated V8's. The result is less horsepower, thus slower speeds. Records would never be broken, and the sport would lose some of its appeal. Racing has always been a strive to go faster; there is no real reason to change it now. One of Tony George's justification is that the sport would become safer. That is not true. The difference would not be much . The fatality rate for a 230 mph crash, and a 210 mph crash, is not that much different.

Essay --

There are many different programs, which offer scholarships for studying in different parts of the world. In order to pick the right one for you, one needs to clearly understand what he/she expects from the program. I find UGRAD to be one of most promising programs for studying in the US for me, because it offers everything I’m looking for. Studying in the US has many great advantages like having an opportunity to get higher quality education, learning about the American people, exploring their lifestyle, culture and holidays, improving your English as well as becoming more responsible and mature person than you are currently. Armenian education system is descendent of the former Soviet Union one, so as a consequence it is more concentrating on theory rather than on the practical usage of the information. The problem is that without knowing how to apply the knowledge, one won't be able to become a good specialist. It is like having a tool but not knowing how to use it. Imagine having the latest, most powerful computer without having a power supply. You can’t make any use of it. This is the situation I found myself in - universities here give profound knowledge however, they are far from providing you with skills of using it. Whereas American education system pays more attention to practical skills, which include ability of doing research, actively interacting with problems of real life as well as developing critical thinking skills. Not to mention that due to having much more progressive equipment and better facilities studying is an easier, more attractive and more joyful process for students. Studying in the US is a perfect solution, as I will get best from both of the worlds. Besides academic challenges, ther... ... As soon as we get to know it better, we find it interesting and even like it. This is the kind of experience I’m looking for. Speaking of motivation I must admit that it came from my English teacher, who kindly showed me the right path to a better future. Thanks to her I had a chance to meet teachers from the US, communicate with them, ask many questions. That was the moment when I realized what I was missing. And the reason beyond my desire to get the best possible education is actually the fact I want to make my country a better place to live in. Armenian economic system is having a hard time nowadays, and the reason is the lack of proper specialist, who would lead the country to the right direction. I hope all the skills and knowledge I’ll bring with me from the US in case of being chosen will help me to become one of the leaders my country needs so much.

rave culture Essay -- essays research papers

Rave Culture What is a rave? Raving is a highly subjective experience. One person's best rave is another person's worst. Any attempt to analyze rave culture must recognize the highly personal factor of the experience. Author Daniel Martin defines a rave as â€Å"a long period of constant energetic and stylistic dancing exhibited by a large group of people in a hot, crowded facility providing continuous loud House music and an accompanying strobe lit psychedelic light show† . Since the beginning of this culture there has been much controversy on the legality of what goes on in the scene. Through the history, music, people, spirituality we are introduced to one of the newest things affecting pop culture today. Rave culture can be traced back to Native American religious ceremonies. It can be traced back to anarchist revolutions in Italy and France. It pulls energy from many different directions. It had its origins in Chicago and Detroit disco clubs and gay dance clubs. England and America traded musical influences back and forth during the late seventies-early eighties until techno finally started to be formed. The actual rave movement, however, combining this new music with dancing, occurred in England. At almost the exact same time, raves started popping up in Manchester and Ibiza, a noted English vacation spot, in late 1987 and early 1988. At this same time, the rave phenomenon was taking hold in Germany, most notably in Berlin. The popularity of raves grew in both countries, and soon the intimate all-night dance parties were drawing thousands of kids. The first U.S. raves were held in San Francisco, long noted for its liberal and psychedelic culture. From here, they moved to Los Angele s and the rave scene was born in California. The rave scene that was born in America was one of complete illegality. It began when Frankie Bones, a New York native and one of the U.S. DJ’s that was spinning in England, saw that the scene was moving into America, and wanted to bring it to his hometown of Brooklyn. He started a series of parties called Stormrave in early 1992. The parties started out small, 50-100 kids, and Frankie resorted to projecting videos of the massive raves in England to show kids what it was all about. It was during this period of Stormraves that many DJ’s made their debuts. The music at a rave is techno, primarily electronically created music that gener... ...rable and strangers become people to be loved. It was a perfect fit with the happy family that the rave scene was trying to create. There is a tangible energy that goes along with dancing to extremely loud beats with hundreds of other people. Raves are a shared experience. A sense of unity often develops among ravers, in which, personal creeds, race, gender, age, sexual preference and everything else that our society places so much emphasis on simply fades into the background. At a rave when everyone is dancing you experience a feeling of collective organism and I think people that have had this experience view the world differently afterwards. Another phrase commonly thrown around in circles of ravers is that of PLUR, which stands for Peace, Love, Unity and Respect. In many senses, PLUR is the dogma that ravers believe in. References: Jordan, Joel. Searching for the Perfect Beat. New York: Watson-Giptil Publications, 2000. Martin, Daniel. â€Å"Power Play and Party Politics: The Significance of Raving.† Journal of Pesch, Martin. â€Å"Techno Style.† Zurich: Edition Olms, 1998. Redhead, Steve, ed. Rave Off: Politics and Deviance in Contemporary Youth Culture. Aldershot: Avebury, 1993.

Evaluate the View That the Separation of Ownership

Evaluate the view that the separation of ownership from control in large firms inevitably leads to diseconomies of scale. The separation of ownership from control can be defined as the situation in which the shareholders of a firm do not manage or control it. The shareholders of large publicly owned have no controlling interest and hence the managers and directors run the organisation. Diseconomies of scale can be described as the increase in the long term average cost of production as the scale of operation increases.It can be argued that the separation of ownership from control can lead to diseconomies of scale due to the lack of communication between managers and shareholders, hence inefficiency and averages costs increase. But it could also be argued that large firms can also benefit from economies of scale whilst being operated through the separation of ownership from control the diseconomies of scale are not always ‘inevitable’ as described above. Firstly, the sepa ration of ownership from control can lead to managerial diseconomies of scale.The power the shareholders have over the disciplining and monitoring of its executive management is reduced and as a result of this, managers may cause inefficiency by pursuing certain objectives for their own self-interest and at the expense of the shareholders. If the managers of the firm are measured and rewarded on achievement of growth targets rather than profit and return to shareholders then they may lose focus on cost control e. g. supplier costs and as a result this could drive up the average costs of production.This would have a bigger impact on large firms due to the scale of production. The costs will be felt on a much larger scale, particularly if this culture affects the way the whole of the business operates not just one business area. The extent on the managerial diseconomies of scale will depend on the objectives of the managers. If their personal targets are to ensure high business perfor mance, then this increase in average cost may not be felt as they may aim to increase productive efficiency to maximise profit and dividends to shareholders.Conversely, although diseconomies of scale may persist in a large firm, the separation of ownership of control may not necessarily be the cause of it. There are other factors that may have contributed to the firm experiencing diseconomies of scale. The rapid growth of a firm may cause the employees to feel alienated if they feel that they aren’t valued as an individual. As a result of this, the productivity of demotivated employees may fall and the roductive efficiency of the firm will decrease, therefore increasing the average cost for each unit of output. The diseconomies of scale may also be caused by the inability for a firm to monitor the productivity of every one of its employees. The lack of supervision resulting from the size of the company and scale of production may mean that employees are not working to their o ptimum level of output or utilizing resources efficiently and this could result in wasted resources e. . From employee errors. Therefore the average cost of producing one unit of output increases. Although, there is not really an easy way to determine the exact cause of the diseconomies of scale. In the short term, it may cost more for the business to alter the way it operates to reduce the average costs. The rate of growth and output may mean that the business is not prepared to change its operations whilst it is generating such a large amount of revenue.In conclusion, I don’t think that separation of ownership from control will inevitably lead to diseconomies of scale for a large firm. Rapid growth is more likely to cause a business to experience them rather than the lack of control for shareholders of the firm. The most costly resources for a firm are employees and premises. The diseconomies of scale that a firm may experience may be due to the increase of overheads from t he rapid expansion before the increased volume profit and volume can be realised in the long term.Although the lack of control for shareholders may initially contribute to a rise in average costs as a firm expands (assuming that the managers want to operate the firm in a way that will meet their personal targets increase their salaries rather than maximise the return for the firm), the increase in average costs should be a short term phenomenon due to rapid increases in volume it should be outweighed by economies of scale generated from buying in large quantities.

Etiology and Pathogenesis of Alzheimer’s disease

Alzheimer’s disease is a degenerative brain disorder and is the main cause of dementia. The major clinical manifestations of Alzheimer’s disease include gradual loss of memory and language. Other major symptoms and signs of this disease are psychiatric and behavioral abnormalities and disabilities in the routine or daily living activities.The etiology and Pathogenesis of Alzheimer’s disease include various factors. Biological Factors Even though the etiology and pathogenesis of Alzheimer’s disease is still not known fully, it is discovered to involve a complex mix of genetic as well as environmental factors.Among genetic and environmental factors, genetic factor is proved to be playing a major role in the etiology and pathogenesis of Alzheimer’s disease. The most important cause of Alzheimer’s disease is found to be the mutations in chromosomes 21, 14 and 1 which are spread or moved in a typical autosomal dominant mode. These mutations make p rotein overproduction in neuritic plaques, B amyloid. Even though the beginning of the familial form is often early, the nature and route of the disorder is found to be influenced by few environmental factors.But it is found out that familial form is responsible for only a negligible proportion of cases of Alzheimer’s disease (even less than five percent) (Cummings et al. , 1998b). Nearly fifty percent of the people who are having ancestors with Alzheimer’s disease are found to be getting this disorder once they enter their 80s and 90s (Mohs et al. , 1987). Few genotypes (the model of genetic inheritance in a person’s body) are found to give risk for the late-onset Alzheimer’s disease (which is very common).Taking an example, the ApoE-e4 allele on chromosome 19, that encourages the deposition of B amyloid, is proved to increase the risk for developing Alzheimer’s disease (Corder et al. , 1993). All other genes that are doubted to be responsible for the development of Alzheimer’s disorder are being studied (Kang et al. , 1997). Apart from this particular reason, there are various other biological risk factors that contribute to the development of Alzheimer’s disorder Cummings et al. , 1998b).Cognitive capabilities and aging are among the biological factors. The manner in which these traits contribute to the increased risk is not still proved, however, it is proved in the medical field that the numerous neurobiologic changes that are associated with the normal aging of the brain of a person also contribute to the major risk factors of Alzheimer’s disorder. As people get into the later part of their life, this age related neurobiologic changes make then more liable for Alzheimer’s disorder.These neurobiologic changes include neuron and synaptic loss, lessened dendritic span, reduced size and density of neurons present in the nucleus basalis of Meynert, and poor cortical acetylcholine levels (Cummings et al. , 1998b). Based on these factors and the frequency and occurrence curve of this disorder, medical researchers have come to the conclusion that people are very much liable to Alzheimer’s disorder if their life span is extended (beyond the normal age) beyond eighties and nineties (up to 100 and 150). People above 90 years are highly susceptible to Alzheimer’s disorder.Among this, those who have Alzheimer’s history in their family are 90 % prone to this disorder. Protective Factors Apart from the biological factors there are various other factors that influence the onset of Alzheimer’s disease. Various protective factors that are powerful enough to delay the commencement of Alzheimer’s disorder have been discovered. For example, Genetic endowment with the ApoE-e2 allele is capable of reducing the risk of Alzheimer’s disorder (Duara et al. , 1996). The exact role and the original mechanism of action of ApoE-e2 allele, however, are not com pletely understood.Deep thinking, higher educational level and wisdom are also proved to be associated with the delay in the commencement of Alzheimer’s disease (Stern et al. , 1994; Callahan et al. , 1996a). Few medication and drugs are also found to be good for delaying the onset of Alzheimer’s disorder. For example, medications, like nonsteroidal anti-inflammatory drugs (Andersen et al. , 1995; McGeer et al. , 1996) and estrogen replacement therapy (Paganini-Hill & Henderson, 1994), are found to be effectively delaying the commencement of Alzheimer’s disease.Apart from this, Vitamin E and the drug selegiline (otherwise known as deprenyl) are also proved to holdup the crucial stages of the course of Alzheimer’s disorder, for example the nursing home placement, serious functional impairments or disorders as the disease progresses and lead to death (Sano et al. , 1997). According to Behl et al. , 1995, the course of action of the protective agents in a pe rson is not completely known; however, these agents are proved to check the toxic action of oxidative stress (through antioxidants like vitamin E or estrogen).These agents also counter the work of inflammatory mediators related to plaque formation (through anti-inflammatories) (Mark et al. , 1995). Histopathology The pathophysiology of Alzheimer’s disorder is also proved to be associated with the histopathologic variations in Alzheimer’s disease. These histopathologic changes include neuritic plaques, synaptic loss, neurofibrillary tangles, hippocampal granulovacuolar degeneration, and B amyloid angiopathy (Cummings et al. , 1998b).Majority of the genetic and epigenetic risk factors are some or the other way linked with B amyloid. This has helped the medical researchers to conclude that the formation of B amyloid peptide is the most crucial pathological event or step in the course of spread of Alzheimer’s disorder in a person (Cummings et al. , 1998b; Hardy & Hi ggins, 1992). A successful intervention in the course of Alzheimer’s disease spreading may include get in the way of any of the numerous steps included in the slow progress of Alzheimer’s disease pathogenetic cascade.Few of the intervention modes include intervening to reduce B amyloid generation from the amyloid precursor protein, intervening to decrease the B amyloid aggregation as well as the generation of beta-pleated sheets, and intervening in the amyloid-related neurotoxicity process. Successful interference in these steps may help interrupt Alzheimer’s spread. Apart from this, few therapies can successfully block the neuronal cell death and can slow down the inflammatory response occurring in neurotic plaques.Therapies are also proved to inhibit the work of certain growth factors and hormones and also delay the replenishment of deficient neurotransmitters. As the complete obstruction of the processes within the B amyloid cascade may affect the usual cereb ral metabolic processes, successful interruptions may bring about partial interruptions (Cummings & Jeste, 1999). Studies about the molecular neuroscience of Alzheimer’s disease have researched several crucial aspects of pathophysiology and etiology.Researchers are working to thoroughly understand the entire processes and reasons behind cell death, neuronal degeneration and subsequent memory degradation. Medical world is expecting new revelations from these studies and are on the way to lay a new therapeutic path for eliminating Alzheimer’s disease from the world (National Institute on Aging, 1996). Medical world is expecting researchers to come out with the real physiological factor that makes a human body prone to Alzheimer’s syndrome. Role of AcetylcholineAcetylcholine is also suspected to play a part in encouraging Alzheimer’s disorder in a person. Loss or decrease of the neurotransmitter acetylcholine also is proved to be responsible for the pathogen esis of Alzheimer’s disease. Postmortem researches in Alzheimer’s disease infected people have explained the loss or reduction of basal forebrain and cortical cholinergic neurons and the exhaustion of choline acetyltransferase, which is the enzyme that carry out acetylcholine synthesis (Mesulam, 1996). Several post mortem reports have come out with the same reason.The scale of this central cholinergic deficit is associated with the severity of dementia that results in the ‘cholinergic’ hypotheses of cognitive deficits in Alzheimer’s disorder (Mesulam, 1996). This hypothesis and the clinical researches have proved that Acetylcholine play a major role in Alzheimer’s disease. However, acetylcholine is not the only neurotransmitter that encourages the growth of Alzheimer’s disorder in a patient. Researchers are still working to find out the role of other substances in the pathogenesis of the Alzheimer’s disorder.The researches relat ed to the pharmacological treatment of this syndrome are coming out with new results. It has been proved that a delay or break in the spread of Alzheimer’s disease is proved to reduce its prevalence in the body of a patient even by half (Breitner, 1991). In order to inhibit the spread of this syndrome in a person it is necessary to delay the onset of the disease to such an extent where mortality from other resources surpasses the frequency of the steps of the disease.So the most crucial step in inhibiting Alzheimer’s disease is the identification of the factors that stop the onset or slow down the progress of the disease in the patient. Working on these agents would help reduce the spread of the disease. References Aarts, P. , & Op den Velde W. (1996). Prior traumatization and the process of aging. In B. A. van der Kolk, A. C. McFarlane, & L. Weisath (Eds. ), Traumatic stress: The effects of overwhelming experience on mind, body and society (pp. 359–377). New Yo rk: Guilford Press. Abrams, R. C. , Rosendahl, E. , Card, C. , & Alexopoulos, G. S. (1994).Personality disorder correlates of late and early onset depression. Journal of the American Geriatrics Society, 42, 727–731. Adams, W. L. , Garry, P. J. , Rhyne, R. , Hunt, W. C. , & Goodwin, J. S. (1990). Alcohol intake in the healthy elderly. Changes with age in a cross-sectional and longitudinal study. Journal of the American Geriatrics Society, 38, 211–216. Aevarsson, O. , & Skoog, I. (1996). A population-based study on the incidence of dementia disorders between 85 and 88 years of age. Journal of the American Geriatrics Society, 44, 1455–1460. Aiken, L. (1990). Chronic mental illness. In B. S. Fogel, A. Furino, & G.Gottlieb (Eds. ), Mental health policy for older Americans: Protecting minds at risk. Washington, DC: American Psychiatric Press. Albert, M. S. , Jones, K. , Savage, C. R. , Berkman, L. , Seeman, T. , Blazer, D. , & Rowe, J. W. (1995). Predictors of cogniti ve change in older persons: MacArthur studies of successful aging. Psychology and Aging, 10, 578–589. Alexopoulos, G. S. (1997, November 6). Epidemiology, nosology and treatment of geriatric depression. Paper presented at Exploring Opportunities to Advance Mental Health Care for an Aging Population, meeting sponsored by the John A. Hartford Foundation, Rockville, MD.

Critical State Soil Mechanics

The preparation of the Cam Clay theoretical account in 1958 is possibly the most of import development in modern dirt mechanics. Mechanical belongingss of dirt have been unified elegantly and systematically into the theoretical model of the theoretical account: the critical province dirt mechanics. Since so, many theoretical accounts were developed within the theoretical model of Cam Clay theoretical account and they form theoretical accounts of the Cam Clay household. Two most distinguished characteristics of theoretical accounts of the Cam Clay household are: ( 1 ) the hardening of dirts based on plastic volumetric distortion, and ( 2 ) the being of a critical province of distortion as the concluding failure province. A brief debut of the two characteristics is given in this session, and descriptions of the strengths of dirts based on critical province dirt mechanics is given in the undermentioned subdivision.7.1.1: Hardening of dirt based on plastic volumetric distortionAs seen in the compaction theoretical account illustrated in Fig. 10, whenever the current emphasis goes beyond the historical upper limit emphasis, plastic volumetric distortion occurs and the elastic zone enlarges. The expansion of the elastic zone is seen as the hardening of dirt and is straight linked to the plastic volumetric distortion of the dirt. Consequently, the undermentioned decisions are drawn from indurating mechanism of dirt. The magnitude of plastic volumetric distortion is dependent on the alteration in size of the output surface, but independent of the stress way. All emphasis provinces which have the same accretion of plastic volumetric strain constitute a individual output surface.7.1.2: Prediction of the being of a critical province of distortionSoil is a frictional stuff. When the emphasis ratio applied on a dirt component additions, dirt will finally make a point, where it has no opposition to further shear distortion. The dirt fails. This is a critical province of distortion. A Critical State of distortion is defined as At a Critical State of distortion, a dirt has no opposition to shear distortion and the dirt can be distorted continuously with its emphasis province and nothingnesss ratio remain unchanged. A critical province of distortion is a concluding failure province. The theoretical model, uniting systematically the mechanical belongingss of dirt into one simple and elegant system under the Cam Clay theoretical account, is referred to as the Critical State Soil Mechanics ( CSSM ) .7.2: Strength of dirt described in the critical province dirt mechanicsThe behavior of Fuji sand in triaxial trials is shown in Fig. 12 ( Tatsuoka, 1972 ) . The trials are drained trials. The axial emphasis additions with the restricting emphasis kept changeless. The denseness of the dirt for the three trials varies from really loose to really dense. It is seen that Fuji sand in a really heavy Fuji province has two strengths: a peak strength and a strength as really big shear strain. For the loose sand, the dirt has merely one strength, besides at really big shear strain. It besides appears that the strength as really big shear 0 5 10 15 20 25 Distortional strain ad ( % ) Volumetric strain Cv ( % ) -12 4 0 5 10 15 20 25 Dense =0.52 Loose eaˆz =0.78 Very loose =0.85 Distortional strain ad ( % ) Fig. 12 The shearing behavior of Fuji sand under triaxial compaction trials ( Test informations after Tatsuoka, 1972 ) Shear emphasis ratio two 3.2 2.4 0.8 1.6 0 Dense =0.52 Loose eaˆz =0.78 Very loose =0.85 -4 -8 strain for the three samples are really near and appears to near a alone value as the distortional strain additions. The peak strength and the critical province strength of dirt interpreted by the critical province dirt mechanics are introduced in the followers.7.2.1 Critical province strengthUnder shearing ( increasing distortional strain ) , dirt reaches a concluding failure province, the critical province of distortion. At a critical province of distortion: Therefore, a dirt can be distorted with no alteration in its emphasis, and no volumetric plastic distortion. At critical provinces of distortion, dirt has the undermentioned characteristics ( Fig. 13 ) . The shear emphasis ratio c is changeless, denoted by I . There is a alone relationship between the average effectual emphasis paˆ? and nothingnesss ratio vitamin E, irrespective of the initial state of affairs of the dirt or the stress way of the trial. 27 This relationship is additive in the vitamin E – lnpaˆ? infinite, and its gradient is the same as that of ICL in the compaction theoretical account, being e . The features of critical provinces can be represented by the critical province line ( CSL ) in the paˆ? – q infinite and the vitamin E – lnpaˆ? infinite. They are described mathematically as. I · Q = I? ( 46 ) Paˆ?e=eCS a?’I »lnpaˆ? ( 47 ) Critical province shear emphasis ratio M Shear emphasis Q I? CSL Mean effectual emphasis P ‘ ( kPa ) ( a ) CSL in the p'-q infinite The critical province shear emphasis ratio is linked to the concluding failure clash angle ocs of dirt measured from conventional triaxial compress trial by the undermentioned equation I? = 6 wickedness I† cs ( 48 ) 3 a?’sin I† cs The critical province clash angle for most san vitamin D is 32A ° A ± 1A ° , which gives about M = 1.28. Determination of the concluding failure strength of dirts Nothingnesss ratio vitamin E vitamin E CS eIC ( 1 ) Undrained concluding strength of dirt ICL I » CSL I » p'=1 kPa Mean effectual emphasis P ‘ ( kPa ) ( B ) CSL in the e-lnp ‘ infinite Fig. 13 Characteristics of critical province of distortion P aˆ? = exp aZ? aZ? aZY Cesium I a?’ Cs aZ? I » aZ Three parametric quantities define a dirt province. They are the emphasis province on the dirt and its nothingnesss ratio, i.e. , ( paˆ? , Q, vitamin E ) . Because any dirt province at a critical province of distortion must fulfill conditions expressed by equation ( 46 ) and ( 47 ) , the concluding failure province ofa dirt, the critical province of distortion, can be determined if there is one more extra status. Some of common instances are discussed here. During an undrained trial, volumetric distortion is non allowed. Therefore, the nothingnesss ratio ofthe dirt is kept the same and is equal to its initial value, ei. Based on equations ( 46 ) and ( 47 ) , the undrained concluding shear strength qcs, the mean effectual emphasis paˆ?cs, an d the nothingnesss ratio European Union are given by ( 49 ) 28 aZ § aZ†ºe vitamin E aZz Cesium I aZ†º a?’ aZz aZ? aZY aZ? I » aZ aZ?aZ? vitamin E vitamin E Cs aZ? Q = I? exp vitamin E vitamin E Cs I=aZ © aZ? aZ? aZ? ( 2 ) Drained concluding strength for changeless paˆ? trials The average effectual emphasis at the concluding critical failure province is known, paˆ?i, so aZ § aZ?aZ? aZ?aZ © personal computers = pi qcs Ipaˆ?i ( 50 ) ei = eCS a?’ I » ln pi The stress way for this type of trials is a perpendicular line in the paˆ? – Q infinite, as shown in Fig. 4. ( 3 ) Drained concluding strength for changeless Q trials The shear strength at the concluding failure province is known, chi, soI » ln chi aˆ? = Cs P I? qcs = chi=ei European Union a?’ aZ†º Q aZz ( 51 ) I aZ?aZ? I? aZ aZY The stress way for this type of trials is a horizontal line in the paˆ? – Q infinite, as shown in Fig. 4. ( 4 ) Drained concluding strength for trials with additive emphasis waies Suppose the gradient for the additive emphasis way is k, and the initial emphasis province of the dirt is ( paˆ?i, chi ) . Then the dirt province at the concluding failure province can be obtained from work outing the undermentioned equations qcs a?’ chi = k personal computers a?’ pi I?aˆ? P Cs =eCSa?’I »lnp qcs European Union ( 52 ) aZ § aZ? aZ? aZ © aˆ? Cs 29 Two common additive emphasis waies, discussed in subdivision 3.3, are ( 1 ) conventional triaxial compaction trials with the restricting emphasis kept changeless and in this instance k = 3, and ( 2 ) conventional triaxial extension trials with the axial emphasis kept changeless and in this instance k = – 1.5.Example 5The critical province clash angle for a sand is 32A ° . For its CSL in the vitamin E – lnpaˆ? infinite, the gradient is 0.12 and European Union is 1.42. ( 1 ) Determine the values of M ; ( 2 ) Pull a study of the CSL in the paˆ? – q infinite and the vitamin E – lnpaˆ? infinite ; ( 3 ) Determine the concluding failure strength of a specimen of the sand with initial province as ( paˆ? = 75 kPa, q = 0, vitamin E = 0.85 ) . ( a ) under undrained state of affairs ; ( B ) under a changeless mean effectual emphasis trial ; and ( degree Celsius ) following a stress way with = 2.dq dpaˆ? A: Determine the values of M 400 800 600 200 0 CSL q=1.29p ‘ Shear emphasis Q kPa 30 100 200 300 400 500 600 Mean effectual emphasis P ‘ kPa Nothingnesss ratioe 0.9 0.7 0.5 1.5 1.3 1.1 CSL e=1.42-0.12lnp ‘ 1 10 100 1000 Mean effectual emphasis P ‘ kPa Oxygen Nothingnesss ratio e n Shear emphasis Q CSL C I? Bacillus A P ‘ ( kPa ) CSL e=eCS -elnpaˆ? Bacillus C Mean effectual emphasis P ‘ ( kPa ) Fig. 14 Variation of dirt strength ( 53 ) 7.2.2 Peak strength As seen in Fig. 12, under shearing dirt at heavy province may make a peak strength ( higher than the critical province strength ) . However, this strength of dirt lessenings with the addition of distortional strain, and becomes indistinguishable to the critical province strength finally. Two characteristics of the peak strength should be noticed. The happening of a strength for dirt greater than the concluding critical province strength ( the extremum strength ) is possible merely if the dirt is under the CSL in the vitamin E – lnpaˆ? infinite ( Fig 14 ) . This is in the â€Å" Dry † side. As named by Schofield and Wroth ( 1968 ) , soil behavior with both peak and critical province strength is â€Å" Dry † behavior. The peak strength is non stable. The minute a peak strength is reached, the strength of dirt will diminish with the farther distortional distortion. An empirical equation proposed by Liu and Carter ( 2002 ) may be used to gauge the peak strength ratio cp of dirt based on its place in the vitamin E – lnpaˆ? infinite=Q P = aˆ? I · P P P 31 ( 1 a?’ I ¦ ) I? for A- & lt ; 0 I ¦ , the province parametric quantity, defined by Been and Jefferies ( 1985 ) as I ¦ = vitamin E a?’ vitamin E CS + I » ln p aˆ? ( 54 ) Uniting the above two equations, we obtain q P I · = = + a?’ a?’ aˆ? I? & lt ; a?’ I » aˆ? ( vitamin E e P ) vitamin E vitamin E P 1 ln for ln P CS CS ( 55 ) P P aˆ? For A- & gt ; 0, there is merely one strength. The peak strength and the critical province strength may be considered as coincident.7.2.3 Variation of dirt strength in the paˆ? – Q infiniteMohr-Coulomb ‘s strength standard, written in the paˆ? – Q infinite, is given as 32 Q degree Fahrenheit = c + I? MC P aˆ? degree Fahrenheit ( 56 ) This standard is possibly the widely used standard to find the strength of dirts in geotechnical technology pattern. However, it is applicable for dirt conditionally. As shown in Fig. 14, Mohr-Coulomb ‘s strength standard is applicable to dirty in the scope of AB, where the dirt in the â€Å" Dry † side, i.e. , below the CSL. The general strength standard for dirt may be divided into three scopes to analyze. Strength of dirts on the â€Å" Wet † side If a dirt province in the vitamin E – lnpaˆ? infinite is above the CSL, i.e. , A- & gt ; 0, the dirt is on the â€Å" Wet † side. Dirts on the â€Å" Wet † side have merely one strength, the concluding critical province strength. The critical province strength of dirts is represented by line BC, and their belongingss are introduced in subdivision 7.2.1. No tensile emphasis line Farinaceous stuffs such as littorals or clays in reconstituted provinces have no echt coherence, and can non prolong a tensile emphasis. The boundary oaˆ?min & gt ; 0 in the paˆ? – q infinite is = 3 Q,paˆ? represented by line OA. On the left side of line OA, tensile emphasis occurs. Strength of dirts on the â€Å" Dry † side Merely when dirt on the â€Å" Dry † side, the dirt has a coherence c. The strength of the dirt can depict by equation ( 56 ) , the Mohr-Coulomb ‘s strength standard. Cohesion degree Celsius may be treated as changeless. Clash angle oMC and parametric quantity MMC is related by the undermentioned equation = 6sinoMC ( 57 ) Megahertz I?MC 3 a?’ sino The whole strength envelope OABC is shown in Fig. 14. Two errors are normally made in using the Mohr-Coulomb ‘s strength standard for finding the strength of dirts. The extension of the Mohr-Coulomb ‘s strength standard to the left side of AB and therefore implies dirt has a tensile strength. The extension of the Mohr-Coulomb ‘s strength standard to the right side of AB ( beyond the critical province strength ) . This implies the ultimate clash angle of dirt will go on lessening after the critical province clash angle unlimited with the average effectual emphasis. Terzaghi, the laminitis of modern dirt mechanics, made both errors in widening the pertinence of Don Taylor ‘s experimental information. And I hope you will non do the same error in your technology designs or safety cheque. 33Example 6The critical province clash angle for a Leighton Buzzard sand in situ is 31A ° measured from conventional triaxial compaction trials. The strength envelope detected for the sand can be described by Mohr-Coulomb ‘s strength standard with c= 40 kPa and oMC = 23A ° . ( 1 ) Determine the values of dirt parametric quantities M for critical province stength and MMC for Mohr-Coulomb ‘s strength ; ( 2 ) Pull the strength envelope of this Leighton Buzzard sand and depict the features of the strength of the sand ; ( 3 ) Discourse the strength of the sand under a drained conventional triaxial compaction trial with the initial emphasis province of the dirt being ( paˆ? = 30 kPa, q = 0, ) . A: Determine dirt parametric quantities M and MMC ; Shear emphasis Q kPa 250 200 150 100 50 0 A 3 ( 30, 0 ) vitamin D 3 0.9 Bacillus 1.24 C 0 50 100 150 200 Mean effectual emphasis P ‘ kPa 347.2.4 Residual province strength of clayey dirtsAfter probes on landslides in the late fiftiess, it was found that the shearing opposition of dirt in a figure of instances was much smaller than the â€Å" concluding † critical province strength measured in the research lab. The construct of residuary strength is formed ( Skempton, 1964 ) Residual strength is defined as the shear strength of a dirt that can be mobilised on a polished sliding surface, after it has been formed through the dirt due to the alliance of its Platypoecilus maculatus atoms. For any given dirt it is the minimal strength come-at-able. There are four major facets of the residuary strength, viz. Dirt must hold adequate plate-like atoms so that a smooth slickensided surface can be formed. The skiding surface of well-aligned dirt atoms must be for the residuary strength to be mobilised. The skiding surface of well-aligned Platypoecilus maculatus atoms can ease residuary failure merely along that surface. 4. The residuary sliding surface one time formed is normally non modified by subsequent distortions of comparatively little magnitude. The residuary strength of a dirt is chiefly dependent on the mineralogy of the dirt: the clay fraction. Clay fraction uc defined as the weight of the clay particles less than 0.002 millimeter in size over the entire weight of the dirt sample. uc is defined as I†° = G0.002 ( 58 ) cG Some experimental informations on the fluctuation of the critical province strength and residuary strength with clay fraction is shown In Fig. 15 ( From Skempton, 1984 ) . The undermentioned information can be obtained this information. ( 1 ) For a dirt with a clay fraction less than 25 % the concluding strength is the critical province strength. The strength is independent on clay fraction. Otherwise, the concluding strength of the dirt is its residuary strength. 0 20 40 60 80 10 0 Clash angle ( A ° ) 34 28 22 16 10 4 residuary province critical province Clay fraction ( % ) Fig. 15 Variation of the critical province and residuary province strengths with clay fraction 35 With 50 % & gt ; uc & gt ; 25 % , both critical province and residuary province strengths vary with clay fraction. With uc & gt ; 50 % , critical province and residuary province strengths are different, but remains with any alteration of clay fraction in the scope. The concluding strength of a dirt, expressed as a clash angle, may change from 32A ° to every bit low as 6A ° with the fluctuation of the clay fraction.

George says several times ‘If I was alone I could live so easy’ Do you think he is right? Essay

It was obvious that George and Lennie were great friends as they always stood by each other and were rarely seen apart. However it was not the perfect friendship, as the book clearly establishes. George is often agitated by Lennie’s childish ways and he states that without Lennie’s company he could have a much better life, ‘I could get along so easy and so nice if I didn’t have you on my tail’. George constantly has to look out for Lennie and it’s as if he is responsible for two people. We see this early in the book when George says ‘you gonna be sick like you was last night’. George knows deep down that he doesn’t have to do this for Lennie but he continues to care for him as if he was his child. If George lived alone then he would only have to look out for himself and he would not have to be constantly checking Lennie and sorting his problems out. Lennie has the mind of a kid, therefore forcing George to treat him like one. He has to give in to him lots of times and he finds him self comforting him continuously. For example when Lennie cried about the mouse, George had to promise him a new one to get him to stop. This is probably very tiring for George, but he has to do it otherwise Lennie could do something stupid like harming himself. Lennie continually annoys George by being immature and dumb. George often says ‘Jesus Christ, you’re a crazy bastard’. We can see that Lennie frequently drives him to using the lord’s name in vain. George can not always be a happy and cheery man, as he has to be bossy and constantly worrying about Lennie. It can’t be much fun for George to have to watch his every move 24/7. He scarcely has enough time to look after himself. We see this when he has to warn Lennie to stay away from Curley’s wife ‘Don’t you even take a look at that bitch’. I get the impression that George has not had much experience with women, how could he? What with Lennie always being there behind him. This has resulted in him not having a very good attitude towards women and it is a bad fault in his personality. If George was on his own, he could get to know the opposite sex better and maybe find a girlfriend. He definitely would like one as he says ‘I could live so easy, and maybe have a girl’. The worst thing about George always being with Lennie is the amount of trouble he has to get in because of Lennie’s senseless actions. This was first shown when we hear about the girl from Weed, if it weren’t for Lennie the pair would never have had to leave. The interview with the boss was also very risky and George had to use his quick thinking and cleverness to think up things to cover for Lennie. If he were on his own, he would have had no bother and could basically have just strolled on to that ranch. Although Lennie is good company for George and they are close friends, I think that George would be better off without Lennie. It would be a huge weight off his shoulders and he could get on with his own life. Lennie is not his responsibility, and I’m sure if Lennie had sense he would want his best friend to concentrate on their own dreams and goals instead of waiting on him all the time. Lennie is not the type of company that George needs; he is still lonely deep down.