LAB 2 Essay Example | Topics and Well Written Essays - 250 words

LAB 2 - Essay Example Specifically, the most common and accepted method of measuring strain is using the electrical resistant strain gage. The strain gage is a gaunt conductor made of a wire or a metallic foil that is in a grid-like pattern. In particular, the grid-like pattern maximizes the amount of strain in the parallel direction. The experiment uses a conductor (carrier) that is of thin strips of metallic film placed on a non-conducting substrate material. The wire is to the specimen and facilitates the transfer of the strain from the specimen to the strain gage. Accordingly, the transfer makes a linear change in the electrical resistance. Precisely, the electrical resistance of a conducting wire fluctuates when the length of the conductor changes in a process called deformation or stretching. Consequently, the basis of the electrical resistance strain gage is the deformation. Under an ideal situation, the strain gage resistance ranges between 30 ÃŽ © to 3 kÃŽ ©. Fundamentally, the resistance changes only a fraction of a percent in a full force range of the gauges. For this reason, a higher resistance change cause s a permanent deformity to the test specimen. Therefore, a successful use of the strain gauge calls for a measure of small changes under high

Survey Essay Example | Topics and Well Written Essays - 500 words - 2

Survey - Essay Example A security survey is an examination and analysis of a business along with assessing the existing security and its importance and deficiencies. A Security survey is a systematic approach of mapping and testing existing security programs and initiatives in a critical manner. Usually, security programs are designed for stakeholders that include employees, customers, government and shareholders. It includes general security and technological security that plays an important role in defining the business approach of an organization. Thus, it is important to know the existing issues and problems pertaining to the security. People concerned with the security programs should be addressed and accordingly issues should be discussed with them to understand the need and importance of conducting the survey. Survey can be conducted through questionnaires or personal interaction in order to assess and analyze the loopholes and benefits of security system. All responses should be recorded in an ethical and transparent manner. It is important to design questionnaires keeping the security objective in mind along with addressing wide arrays of issues and problems pertaining to security. Usually, security surveys are conducted by the security officer but can also be conducted by the outside party in order to have a third party opinion over the existing security systems. The questions should be precise and open ended in nature and should compel respondents to share their views. This would further help in analyzing the garnered opinions and views. It needs to be understood that results of the survey are reported to the management in an informative and logical manner. It should include an introduction of the survey, needs and objectives along with stating the purpose of conducting the survey. A thorough analysis of risks and returns should be included along with mentioning wide arrays of strengths and

Muscular Disorders Case Report Essay Example for Free

Muscular Disorders Case Report Essay A mother presents with her 13 y/o son with a history of frequent falls, difficulty getting up from a lying or sitting position, trouble jumping, large calf muscles and poor grades in school. Based on the description and symptoms given, the likely diagnosis would be Duchenne’s muscular dystrophy, or DMD; although DMD and its symptoms tend to show up at an earlier age but not always. This type of muscular dystrophy is the most common and severe form of the dystrophinopathic diseases. Dystrophinopathic diseases are muscular dystrophies that are of a genetic nature caused by a deficiency in the protein dystrophin. This protein is vital to muscle function and contraction. In the case of DMD, there is a mutation in the gene, called the DMD gene, responsible for producing dystrophin causing a deficiency. This gene mutation is X-linked recessive and is inherited. This means that females in the family carry the gene mutation and can pass is on to their offspring male or female, but it is expressed in the males. DMD is usually diagnosed when a young boy shows signs of muscle weakness and there is a family history of the disease. Per Genome (2010), â€Å"a muscle biopsy for dystrophin studies can also be done to look for abnormal levels of dystrophin in the muscle. † Genome (2010), also states that â€Å"genetic testing on a blood sample for changes in the DMD gene can help establish the diagnosis of Duchenne’s muscular dystrophy without performing a muscle biopsy. † For most individuals, a combination of these testing methods is used to confirm a diagnosis of DMD. There is no known cure for DMD. Treatment involves treating the symptoms and keeping the patient as comfortable as possible. Medline (2012) says that â€Å"steroid drugs can slow the loss of muscle strength and may be started when the child is diagnosed or when muscle strength begins to decline. † Other drugs, such as Albuterol, can be used to control breathing problems that occur in the later stages of the disease and drugs to help with heart functions are prescribed to help control any cardio symptoms that may be present. The prognosis for individuals with DMD is bleak; it is a rapidly progressive disease and patients with DMD usually surrender to the disease or complications from it in their 20’s or 30’s, sometimes even earlier. I grew up with a family next door to me in which the two oldest boys had DMD. The disease eventually took both of their lives. The oldest boy did live long enough to graduate from high school but the younger of the two died from complications when he was 16. It was horrible for the family to stand by and watch their sons slowly decline and eventually die. This disease continued to plague their lives when the daughters passed it on to their boys and probably still plagues them today. There have been great strides in the field of research in regards to DMD but as of yet no cure has been found. Hopefully one day, there will be a cure for this devastating, debilitating disease and no more families will be forced to watch their children die right before their eyes.

Examining Evidence Of Climate Change Environmental Sciences Essay

Examining Evidence Of Climate Change Environmental Sciences Essay The definition of climate change is the change in global climate over time due to Natural and human influences. The main natural influence is the Greenhouse effect. Some scientists have come to the conclusion that the world is experiencing climate change, carbon dioxide in the atmosphere is rising, the polar icecaps are melting and sea levels are rising. Health issues connected to climate change include Water, food and vector borne diseases, Respiratory disease, Solar radiation, Heat waves and flooding. Vector borne diseases such as Malaria and Dengue fever have increased due to climate change since 1975. Malaria is extremely sensitive to climate change, as malaria is common in warmer areas of the planet such as Africa and is sensitive to temperature changes, many studies have come to the conclusion that climate change is responsible for Vector borne disease spreading to cooler areas, the disease used to be rare in cooler areas of the world. Variations in solar radiation are thought to effect climate change by causing the earth to get warmer due to an increase in sunspots. Radiation will be increased due to cooling of the stratosphere which increases the effect of ozone depleting gases, also climate change alters cloud formation which can allow more radiation to the earths surface, and higher temperatures results in people spending more time outside increasing exposure to solar radiation. (IPCC, 2010). Heat waves have led to many deaths particularly in the elderly especially if they suffer from other health problems as well as they cannot cope with changing temperature extremes. Heat waves also cause dehydration from loss of salt and fluid due to sweating which in turn can result in coronary thrombosis due to high blood concentration. Flooding is due to the rise in sea and river levels and more intense rainfall, there are many consequences that come from this which are loss of homes and personal belongings, productivity loss for businesses, effects on tourism, farming, interruption to Gas and electricity supplies connected to electricity loss is disruption to communication ie TV, telephones, radios and the internet. (Architecture.com, 2010). Vector borne diseases such as Malaria and Dengue fever have increased due to climate change since 1975. Malaria is extremely sensitive to climate change and warmer temperatures support disease transmission resulting in a spread of the disease to cooler areas. Warming Temperature coupled with air pollution can lead to increased chances of respiratory disease such as COPD, asthma and bronchitis. There is a lot of evidence to suggest climate change is having an impact on aeroallergens, mould spores and pollen activity which is directly linked to asthma. The greenhouse effect occurs when gases in the atmosphere mainly carbon dioxide, nitrous oxide and methane trap energy from the sun and keeps the planet at a range of temperatures to sustain Human life, without this effect the earth would be 60F colder. Manmade greenhouse effect happens when fossil fuels are burnt greenhouse gases escape into the atmosphere and enhance the natural effects. Burning fossil fuels also increases the concentration of carbon dioxide and many scientists believe this is responsible for global warming. (Weatherquestions.com, 2010) Scientists have predicted that rising sea levels due to melting ice sheets will push up sea levels by a metre by 2100. This occurrence happens because of thermal expansion, in simple terms as sea water warms its density decreases and volume increases, the ice melts quicker than the snowfall is being replaced resulting in rising sea levels. The impact of this is flooding in low lying coastal areas affecting 10% of the worlds population. Projections of global sea level rise by the IPCC in 2001 ranged from 9 to 88 cm by 2100. (Science Daily, 2009) A Large percentage of scientists however have come to the conclusion that global warming does not exist, they believe that there is not enough evidence to conclude that CO2 realised into the atmosphere by man is causing the so called greenhouse effect 17,000 scientists have signed a petition to this affect. (Captitalism Magazine, 2001). At the UN Climate summit in Copenhagen governments are attempting to reduce greenhouse gas emissions and stop human induced climate change with a new global agreement, the scientists who disagree have come up with ten reasons why we are not experiencing climate change. Reliable sources of temperature data show no global warming trend, as all global warming predictions are done using a computer model not historical data. It has been found by instruments that the earth is warming up but the instruments do not show true values as the readings are taken in urban areas and because of the urban heat island effect where an urban area is warmer than the surrounding rural areas the readings will not be correct. And some areas of the world dont even have access to instruments so overall the readings are subject to large errors. Since 1998 records show from using satellite predictions there no significant warming. The earth was found to be warmer in the recent past, where temperatures in Europe were higher than they are now, and the arctic was warmer in 1930 than it is today. Computer models have been found to be unreliable because they cannot model all the variables that can affect the weather such variables being, influence of clouds, distribution of water vapour and warm seawaters impact on ice shelves. Computer models predict atmospheric behaviour but the measurements are showing the opposite so the computer models are wrong or the measurements are somehow incorrect. The sun is now thought to be responsible for climate change due to its changing output and solar wind. CO2 rises that presumably occur before temperature rises is believed to be not the case in fact the CO2 rise happens after the temperature change suggesting that warmer temperature increases the gas escape from the oceans. The use of satellites to establish weather trends was only started in the 1970s so measurements where not very accurate before that time, a lot of effects such as Hurricanes and the extent of arctic ice would therefore be observed only when they could be seen. The use of satellites therefore is so short that any claims of significant increase in Hurricanes getting stronger or arctic ice sheets reducing cannot really be justified. Water vapour is the main natural greenhouse gas that keeps the earths surface warm it is responsible for 98% of all warming so any rise in CO2 or methane would have a relatively small impact, and distribution of water vapour can occur in many different ways so its rise does not necessarily increase warming. In conclusion some groups of scientists are sceptical about climate change and have some very plausible arguments against it but each and every argument can be answered by the scientists who believe it is occurring, so therefore it may come down to personal opinion until a time when there is concrete evidence for or against climate change. (BBC News, 2009). As reliable data collection methods are relatively new accurate judgements are difficult to make on data over 30 years old.

Nabokovs Spring in Fialta :: Essays Papers

Nabokovs Spring in Fialta Spring in Fialta’s opening line, â€Å"Spring in Fialta is cloudy and dull,† (Nabokov 413) is quite an atypical beginning for Nabokov. This line, coming from a man who is overly concerned with trifles, brings up many questions. Is Nabokov intentionally leaving out the trifles of Fialta here at the beginning? If so, why? Perhaps the answer to this question is that Nabokov intends for the line in question to be a double entendre referring to both the town and the story itself. On the narrative level, Nabokov leaves little to the reader’s imagination. The story is dull and commonplace. Moreover, I found Douglas Fowler’s criticism of the story to be off the mark and reaching. Fowler is looking too deeply into a cut and dry romantic parody, which bears a striking resemblance to Pushkin’s Eugene Onegin. Nina’s imminent death is mentioned all over this story. These statements are so direct that it cannot be called foreshadowing. Foreshadowing is much more subtle, like seeing a dead bird or something. Foreshadowing is definitely not like what is in Spring in Fialta, which is more like, â€Å"Yup, she’s gonna die.† For example, the lunch with Nina where, â€Å"for the last time in her life, was busy eating the shellfish of which she was so fond,† (Nabokov 427). There are many more statements, some not quite as direct as these, but direct nonetheless such as when Victor is imagining her: Had I to submit before judges or our earthly existence a specimen of her average pose, I would have perhaps placed her leaning upon a counter at Cook’s, left calf crossing right shin, left toe tapping floor, sharp elbows and coin-spilling bag on the counter, while the employee, pencil in hand, pondered with her over the plan of an eternal sleeping car. (Nabokov 417) Also, very early on, Victor says he â€Å"cannot imagine any heavenly firm of brokers that might consent to arrange me a meeting with her beyond the grave,† (Nabokov 415). Statements such as these makes the reader so used to Nina’s death that at the climax of the story when she finally dies, the reader feels no sadness towards this event. There is no tugging at the heartstrings.

Problems with Standardized Testing Essay example -- Standardized Testin

Problems with Standardized Testing â€Å"Where is the standardized test that can measure passion for learning, respect for others, and human empathy?† These are the words of Tom McKenna, a disgruntled high school teacher from Portland, Oregon. Like many other educators and students across the nation, Tom is tired of the system. The educational system today is composed of a series of standardized tests. Standardized tests are bad for many reasons. They cause teachers to limit their curriculum, put low-level income and minority students at a disadvantage, cause school districts to focus too heavily on raising test scores, and extract the passion for learning from students.   Ã‚  Ã‚  Ã‚  Ã‚   In many cases teachers are encouraged to teach only material that will be seen on certain standardized tests. For this reason, teachers are forced to extract superfluous material from the course. Instead, teachers focus only on specific items from the test. Students are encouraged to memorize isolated facts and regurgitate short responses. In an article published by the FairTest organization, this method is called â€Å"teaching the test.† Teaching the test seems to be conducive to improving test-taking skills but real academic progression is not always represented.   Ã‚  Ã‚  Ã‚  Ã‚  The aforementioned Tom McKenna was put in this very predicament. In his article titled, â€Å"The Straitjacket of Standardized Tests† he tells a story of two of his high school students engaged in a project which enthralled their interest in an unlikely subject. McKenna had become friends with a man named Sol Shapiro. Shapiro, now in a retirement home, had once been a resident in South Portland, Oregon, which was a Jewish immigrant community. McKenna’s students accompanied him to Shapiro’s house in order to conduct an interview. A few seconds into the interview Shapiro broke down in tears and the students immediately turned off the video camera and tape recorder. The students comforted Sol. They finished the interview, much of which was unrecorded. McKenna noted that these students had an increased interest in oral history following the interview. â€Å"They wanted more.† he noted. He then adds, â€Å"Unfortunately, given the demands of current educational reform in Oregon, teachers are finding it difficult to give students the "more" they desire.† McKenna was referring to the fact that teachers in Oregon are encouraged to striv... ... craft to focus like drones on getting the scores up." If teachers were concerned with inspiring students, they could cause students to be passionate once again.   Ã‚  Ã‚  Ã‚  Ã‚  In my personal experience, my freshman history teacher would totally agree with my argument. He always told me that the most important part of the education process is â€Å"knowledge for the sake of knowledge.† This means that students should want to learn in order to gain intelligence. I have always kept this philosophy in high regard and have tried to apply it to my everyday scholastic life.   Ã‚  Ã‚  Ã‚  Ã‚  The educational system should be less of a system and more of a process. It should focus on the intellectual, emotional, and spiritual development of its’ students. As long as we continue to use standardized tests a change will never be made. Works Cited Elmore, Richard F. â€Å"Testing Trap.† Harvard Magazine Online. October 2002   Ã‚  Ã‚  Ã‚  Ã‚   FairTest: The National Center for Fair and Open Testing. How Standardized Testing Damages Education. McKenna, Tom. The Straitjacket of Standardized Tests. Spring 1999. Rethinking Schools Online. â€Å"Rethinking Standardized Testing† The Seattle Press Online. 17 May 2001.   Ã‚  Ã‚  Ã‚  Ã‚   Problems with Standardized Testing Essay example -- Standardized Testin Problems with Standardized Testing â€Å"Where is the standardized test that can measure passion for learning, respect for others, and human empathy?† These are the words of Tom McKenna, a disgruntled high school teacher from Portland, Oregon. Like many other educators and students across the nation, Tom is tired of the system. The educational system today is composed of a series of standardized tests. Standardized tests are bad for many reasons. They cause teachers to limit their curriculum, put low-level income and minority students at a disadvantage, cause school districts to focus too heavily on raising test scores, and extract the passion for learning from students.   Ã‚  Ã‚  Ã‚  Ã‚   In many cases teachers are encouraged to teach only material that will be seen on certain standardized tests. For this reason, teachers are forced to extract superfluous material from the course. Instead, teachers focus only on specific items from the test. Students are encouraged to memorize isolated facts and regurgitate short responses. In an article published by the FairTest organization, this method is called â€Å"teaching the test.† Teaching the test seems to be conducive to improving test-taking skills but real academic progression is not always represented.   Ã‚  Ã‚  Ã‚  Ã‚  The aforementioned Tom McKenna was put in this very predicament. In his article titled, â€Å"The Straitjacket of Standardized Tests† he tells a story of two of his high school students engaged in a project which enthralled their interest in an unlikely subject. McKenna had become friends with a man named Sol Shapiro. Shapiro, now in a retirement home, had once been a resident in South Portland, Oregon, which was a Jewish immigrant community. McKenna’s students accompanied him to Shapiro’s house in order to conduct an interview. A few seconds into the interview Shapiro broke down in tears and the students immediately turned off the video camera and tape recorder. The students comforted Sol. They finished the interview, much of which was unrecorded. McKenna noted that these students had an increased interest in oral history following the interview. â€Å"They wanted more.† he noted. He then adds, â€Å"Unfortunately, given the demands of current educational reform in Oregon, teachers are finding it difficult to give students the "more" they desire.† McKenna was referring to the fact that teachers in Oregon are encouraged to striv... ... craft to focus like drones on getting the scores up." If teachers were concerned with inspiring students, they could cause students to be passionate once again.   Ã‚  Ã‚  Ã‚  Ã‚  In my personal experience, my freshman history teacher would totally agree with my argument. He always told me that the most important part of the education process is â€Å"knowledge for the sake of knowledge.† This means that students should want to learn in order to gain intelligence. I have always kept this philosophy in high regard and have tried to apply it to my everyday scholastic life.   Ã‚  Ã‚  Ã‚  Ã‚  The educational system should be less of a system and more of a process. It should focus on the intellectual, emotional, and spiritual development of its’ students. As long as we continue to use standardized tests a change will never be made. Works Cited Elmore, Richard F. â€Å"Testing Trap.† Harvard Magazine Online. October 2002   Ã‚  Ã‚  Ã‚  Ã‚   FairTest: The National Center for Fair and Open Testing. How Standardized Testing Damages Education. McKenna, Tom. The Straitjacket of Standardized Tests. Spring 1999. Rethinking Schools Online. â€Å"Rethinking Standardized Testing† The Seattle Press Online. 17 May 2001.   Ã‚  Ã‚  Ã‚  Ã‚  

Wilderness vs Civilization

Wilderness Versus Civilization In â€Å"The Place, the Regions, and the Commons,† Gary Snyder discusses the importance of place when dealing with the environment and establishment of ideological hearths. The contrasting sides between the natural world and synthetic societies play a large part within the essay, for we must take a stand when determining our own personal place. Snyder cites many examples of how humanity's search for place leads to the destruction of the natural world around us, such as overgrazing in the commons.This clash between the necessity for a stable â€Å"place† and the universal needs of nature force us to find an equilibrium in which a comprehensive happiness can be reached. Snyder follows up on this environmental critique with a deeper philosophical mindset. He eagerly suggests the idea that our longing for â€Å"place† severely reflects our subconscious tendencies and realities. There are a frustrating number of examples of bioregional s elfishness, such as the tragedy of the commons.However, there are also a delightful abundance of examples that demonstrate the optimistic and altruistic deeds completed in order to insure the health of the habitat within. There are two sides of a coin when dealing with the darkness and purity of mankind as a whole. This same coin exists within us individually, and it is up to us to decide which side lands facing up. It is a difficult task to describe the inner conflicts that occur within myself solely through text. In order to properly express my true feelings and thoughts, another medium must be used.In this scenario, it would be best to demonstrate my newfound resolve and terror through the eyes of a camera lens. Ever since I moved to Boone to begin my college career, I have begun a new personal era of introspection. I seek to know why I commit the corrupt sins that I succumb to, and why I choose to aid subjects that I could optionally neglect. By observing these hidden demons and saints within my soul, I am able to emulate it onto the surface and understand the world as a whole. As Susan Sontag eloquently points out: â€Å"As photographs give people an imaginary possession of a post that is unreal, they also help eople take possession of space in which they are insecure†. In essence, I feel that this picture aptly describes the state of wildness within our fabricated society. The leaf is being consumed by the manufactured acts of humanity, and I feel helpless as I gaze onto it's decaying structure. My mind immediately begins to take responsibility for nature's impending fall into this desolate land. The wildness within us inhibits our sympathies towards the habitats that we constantly surround ourselves with. Civilization is being dominated in this photograph.The trees stand tall, the bushes lay as a shroud of eloquence atop a seething boredom of concrete. The mountains extend their hand to the sky, greeting it with a warm resolve. The wild side to m yself would scuffle this minor victory for nature under the carpet and continue onwards, however the civilized side recognizes the absolutely exquisite act of defiance by the cosmos. As Snyder states: â€Å"The State is destroyed, but the mountains and rivers remain†, the wilderness ignores our presence almost as much as we tend to ignore it. rom the cataclysmic tendencies that plague most. In this fleeting moment of nonsensical entertainment, serenity is achieved and balance is restored; leaving the rest to remain asunder. The war between wilderness and civilization rages inside all of us. The guilt of our selfish actions is only matched by our desire for a better â€Å"place†. These individual conflicts add up to a cumulative impact on the region that we live in. It is apparent that the cruelty of man has influenced certain areas for the worse.My exploration of Boone has led me to conclude that a somewhat stable symmetry between both sides has been formed. There is a sense of order within this town, for many advocates have cascaded a protective sheath around the weakening wild. Even as the nature dwindles away, it is merely retreating and waiting to have the last laugh. The resilience of nature will surely outlast the overabundance of man. This conclusion leaves me hollow and optimistic at the same time, clouding any absolute fulfillment within myself individually.When mankind has free reign, the oversaturation of our greed typically poisons the vulnerable. This is why Snyder urges us to take great efforts in order to restore the equilibrium between civilization and the wilderness. Our time is beginning to run thin as the battle between both sides continue, but Snyder urges us to stay positive and learn from our mistakes in order to reach complete attainment in the future. ———————– I took this picture after the conclusion of my final class on Thursday.I was in the process of contemplation when I looked down and noticed this lonesome leaf surrounded by the artificial landscape. I immediately felt that this small act of symbolism was worth capturing for eternity. It occurred just outside of the Central Dining Hall. I gazed upon the mountain skyline and noticed the rampant growth of trees from my lowered perspective on the ground. This observation made me smile, which led to the capturing of the photograph. By altering my perception of the world around me, I was able to obtain this earthly image.I was extremely delighted to spectate my first game of Quidditch since arriving to my new home. The rambunctious cheers of both sides were only rivaled by the serene beauty brought upon by the landscape on Sanford Mall. I felt like this universal victory should be documented as a model for co-dominance between the wild and civilization. The leaves fall from the trees, as if they are jumping from the stands in an attempt to join the game. The men and women pay respect to the worl d around them by refraining