Tuesday, August 6, 2019
Toilet Paper Essay Example for Free
Toilet Paper Essay The pages of history state that there was an era in which many other alternatives were used instead of toilet papers. Examples of such alternatives included leaves, pebbles, and water. In ancient times the tribes used to clear their excreta through the remains of a corn or corncobs. They would also sometimes use the skin of the corn. Toilet paper is made up of thin fibers of trees. The increasing demand of toilet roles is decreasing the amount of trees, which are of a great use. The manufacturers of toilet roles many times chop the trees but as it is said they do not understand the importance and just throw the remaining fiber as if it is not of any use. On average, Britons use 17.6 kilograms of toilet paper annually whereas Americans use 15.7 kilograms annually. (Waterfield, 2007) In all, Americans consume 27% of the total wood produced globally. On average, each American uses 75 cubic meters of wood annually. In North America alone, almost half of the coastal temperate rainforests have been wiped out. Almost half of the forests that were originally spread over an area of 48% of the Earths land surface have been lost. Moreover, ââ¬Å"only one-fifth of the Earths original forests remain pristine and undisturbed.â⬠(NRDC: Forest Facts, 2004) In the United States, 94% of the original forests have already been destroyed. Currently, 307,000 square kilometers of forests are remaining which make up around 2% of the total forest remaining worldwide. (Remaining Frontier Forest, n.d.) Toilet Paper manufacturers like Kimberly-Clark say that consumers want non-recycled toilet papers because of their softness which is not possible by using recycled material. ââ¬Å"One million trees would be saved if every U.S. household replaced just one 250-count package of virgin fiber napkins with 100 percent recycled ones. 424,000 trees would be spared by replacing a 500-sheet roll of virgin fiber toilet paper.â⬠à (Llanos, 2006) (NRDC: A Shoppers Guide, 2005) Most manufacturers use pulp because it increases the softness of toilet papers. As stated above, many consumers prefer those toilet papers which are soft although the use of recycled toilet papers reduces environmental hazards like global warming by saving trees and forests. Approximately in the USA 5.8 million tons of tissues grades, toilet paper, towels, sanitary products, facial tissues, and diapers are produced yearly. And around 3.5 million tons of scrap paper was used to manufacture aforementioned products. ââ¬Å"By recycling 1 ton of paper you save: 17 trees 6953 gallons of water, 463 gallons of oil, 587 pounds of air pollution, 3.06 cubic yards of landfill space, and 4077 Kilowatt hours of energy.â⬠(Fun Facts, n.d.) An average roll contains 227 grams weight, which usually include the cardboard core tube and this is just over half of a pound. In paper related manufacturing account shows that around 28 percent of trees have been cut down in this respect. However, more trees are planted every annum instead of chopped down. Fortunately, on an average five trees are planted in place of one chopped down tree. (Fun Facts, n.d.) There are over five hundred paper mills are working in the United States. Global production of paper is predictable to expand forty six percent by the year 2040. In this regard, One of the most complete sources for tree-free paper is the ââ¬Å"Oregon based Fiber Options Paper Company catalogâ⬠. The owner of the company Karen said that, plants just like ââ¬Å"kenafâ⬠produce four times as much fiber per annum as tress. Hence the plant shorter fiber also forms them more easily recyclable. (Fun Facts, n.d.) Recycled paper is paper that comprises fiber from waste paper. Nevertheless, there is no global agreement on the exact definition of this. According to paper userââ¬â¢s environmental forum checklist recycled paper should comprise as high proportion of pre consumer fiber waste as possibility proportionate. A pre consumer waste paper is a paper that has been used by the end-user for the indented purpose. Recycling paper is not only gathering wastepaper, but also using paper with recycled substances. Certainly, Toilet paper with high-recycled content is neither expensive nor difficult to acquire. ââ¬Å"Recycled paper, either pre or post-consumer materials needs to be washed and is often deinked prior to being pulped. The pulp goes through a bleaching process to make it whiter. There are many bleaching processes; New Leaf Paper chooses a processed chlorine free process. Once the pulp is bleached, it enters a series of phases including the following: the paper forming section; the press section where water is removed by pressing the wet paper between rolls and felts; and the drying section where the moisture content is reduced to the desired level; and the calendering section where the paper is compacted and smoothed progressively as it travels down a stack of steel rolls. After completion, the paper is stored in either rolls or cut into sheetsâ⬠. (Fun Facts, n.d.) A research conducted by EPA for congress in the early 1970ââ¬â¢s disclosed the facts that by using one ton of 100 percent recycled paper we can saves 4100 Kwh of energy, which is sufficient for 1 home for six months besides this we can save 7000 gallons of water. The study further revealed that it also keeps more than sixty pounds of pollution out of the fresh air and hence saves 3.3 cubic yard of landfill space, which is increasingly significant as many domestic landfills near capacity. Moreover, representatives of paper industry companies also approximated that 1 ton of recycled paper saves nearly 17 trees. (Fun Facts, n.d.) References à Fun Facts (n.d.) http://www.toiletpaperworld.com/tpw/encyclopedia/navigation/funfacts.htm Accessed, June 5, 2007 Llanos, Miguel (2006, April 21) Ready to rethink toilet paper for Earth Day? http://www.msnbc.msn.com/id/12318915/ Accessed, June 5, 2007 NRDC: A Shoppers Guide to Home Tissue Products (2005, Oct 26) http://www.nrdc.org/land/forests/gtissue.asp Accessed, June 5, 2007 NRDC: Forest Facts (2004, Aug 27) http://www.nrdc.org/land/forests/fforestf.asp Accessed, June 5, 2007 Remaining Frontier Forest (n.d.) http://www.endgame.org/gtt-deforestation.html Accessed, June 5, 2007 Waterfield, Bruno 05/02/2007 Britons lead the way in toilet paper use http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2007/02/05/wrolls05.xml Accessed, June 5, 2007
Monday, August 5, 2019
Active Suspension Types Of Active Suspension
Active Suspension Types Of Active Suspension There are two main groups of active suspensions, the ones altering the suspension settings and the ones regarding the anti-roll systems. The altering suspension setting types are the self-levelling and the height adjustable suspensions. These types of suspension systems aim to maintain the vehicle as flat as possible. The self levelling suspension aims to counteract the difference in axle load between the front and the rear of the car due to loading of the vehicle, breaking or accelerating forces. The height adjustment suspensions cope with the problems of ground clearance and to some extent the stiffness of the suspension. Inside the anti-roll systems there is another classification between active and semi-active anti-roll suspension. Active anti-roll suspensions exert a force in the opposite direction of the rolling force to counteract the effect of the body roll, whereas the semi-active suspension opposes the body roll, usually by increasing the stiffness of the dampers. Regarding the method used to achieve the anti-roll effect the suspensions can be also classified as hydraulic (active), electromagnetic (active), solenoid valve (semi-active) and magneto rheological (semi-active) Michelin as a tyre manufacturer has developed its own suspension system. The system was exposed to the public for the first time in the Paris motorshow of 2008 and it is and a wheel onboard traction and suspension system as shown in the picture below. Figure Michelin Active Wheel Picture, Press Kit 2008 Paris Motor Show This suspension system is a combined traction and suspension electrical system. The Active wheel can incorporate only the suspension components or include an electric motor, and as Michelin claims it could be used in a four wheel drive or a two wheel drive layout depending on power demands. The main advantages of this system is that all the components necessary for the control of the suspension are assembled in the wheel, hence it would not interfere with package constrains or the geometry, and because of that, more cabin space can be fully utilized. Another of the advantages is that is a fully electrical system, so it can be utilized in hybrid cars as the drive of the wheels is done trough an electric motor installed on the wheels. This means that the use of this system could reduce the carbon emissions or fully eliminate them in an electric vehicle. On the other hand, the system is fairly new and needs to be proven in real life situations. Other problems are that the drive must be necessarily done through electric motors, hence not really suitable for the use of a conventional engine alone, and although the costs of the system have not been published, it can be assumed that it would be fairly higher than a conventional active suspension based on the cost of research, development and price of the components alone. Bose Boseà ¢Ã ¢Ã¢â¬Å¡Ã ¬Ã ¢Ã¢â¬Å¾Ã ¢s approach to a active suspension is another peculiar one, as it is a cross between an in-wheel device and a conventional suspension. The way the mechanism works is by replacing the conventional shock absorbers and spring dampers by a single linear electromagnetic motor at each wheel. These electromagnetic motors are computer controlled to provide a soft suspension, but at the same time are set to self level the vehicle. Also because the electromagnetic motors are computer controlled suspension can be set to counteract the body roll and pitch angle of the vehicle during cornering, braking or acceleration. Overall the system is not intrusive regarding the package constrains of the vehicle as it would be installed using the mounting points of a conventional coil-over spring damper. And in terms of weight, it would be similar to a conventional suspension. Another advantage is that the system would not require the extra weight added by using actuators and torque arms. The main disadvantages are that the system is not a straight replacement as it needs the software to be set up for each vehicle in question, and the potential needs for a bigger battery to cope with the electromagnetic motors demand, and the power usage of recharging the battery. MagneRide MagneRide is the commercial name of the Magneto Rheological suspension developed by Delphi, and lately sold to BWI (Beijing West Industries) group. The Magneto Rheological suspension is primarily a semi-active suspension that by altering the suspension properties of the fluid inside the dampers through electromagnets, changes the stiffness of the suspension. This system although being a semi-active suspension is able to perform almost as well as an active suspension. Unlike a semi-active suspension the control of the suspension stiffness can be changed none linearly to the input response, hence instead for example instead of opposing the body roll, it can be counteracted by further increase of the suspension stiffness. Some of the disadvantages are the added weight and cost of the components compared to a conventional suspension, and that it cannot perform under certain conditions as well as a fully active suspension. Originally this suspension was developed for General Motors, and used in the top end vehicles of the company such as Holden, Buick, Cadillac and Corvette models. Since the introduction of this suspension other companies have used this suspension in some of their performance range such as Audi, Ferrari and Acura. The off-road applications of the MageRide have seen use of this system on the Cadillac SRX and Acura MDX. This suspension system is currently being retrofitted to lightweight tanks and high mobility vehicles as well as in prototypes by the United States Army. Active Stabilizer Suspension System The Active Stabilizer Suspension System is a joint venture between Toyota and Aisin Seiki Co. to develop an innovative suspension for Lexus (Toyotaà ¢Ã ¢Ã¢â¬Å¡Ã ¬Ã ¢Ã¢â¬Å¾Ã ¢s luxury range of vehicles). The system is a fully electrically controlled active suspension system. The way it works is similar to the one currently used by Jaguar-Land Rover, but instead of using a hydraulic system, is using brushless motors geared and connected to the stabilizer bars. Toyota claims that this system is twenty times more energy efficient than a standard servo actuated hydraulic active suspension and its reaction time is also quicker, being considered to be within 20 milliseconds (Suzuki et all, 2006). On the other hand the main disadvantages are the cost and development of the components. This system is being currently offered as an optional extra throughout most of the Lexus range, and also offered in the crossover SUV Lexus RX 450h Hydractive The Hydractive system is a Citroen developed hydro-pneumatic suspension, in which the conventional coil springs and shock absorbers have been replaced by hydro-pneumatic shock absorbers. This system has suffered several revisions, being the current one Hydractive 3 being introduced in 2001. Early versions of the hydro-pneumatic suspension featured a self-levelling and ride height adjustment. The later versions of the Hydractive also feature options such as automatically lowering the ride height above certain speed to reduce fuel consumption or electronically controls that avoid the suspension dropping after the engine is switched off. Also another package, such as the Hydractive Activa suspension, combined the previous advantages with an active suspension eliminating body roll whilst cornering. This suspension system is currently used by the PSA Peugeot Citroen group and at some point this suspension technology has been used by other manufactures and military vehicles. The main advantages of this system are that independently of the load and load distribution, the car will always remain levelled. The system has at the same time a smooth and firm ride. This is due to the dual characteristic of the suspension. Firstly the pneumatic suspension provides a smooth ride because is not as stiff as a conventional spring, but at the same time the hydraulic suspension is less compressible than a conventional spring, providing a solid support when hard breaking or cornering happens. Overall the suspension is more progressive than a conventional coil-over system, being softer under bumps and harder under cornering. On the other hand this suspension has several drawbacks such as being a more complicated and expensive system, which requires specialized maintenance. Another concerning problem is that a system failure will result on ride height loss and a performance drop in the brake and power steering systems. Air suspension Air suspension works in a similar way as the hydro-pneumatic. In the air suspension the conventional coil-over spring dampers are replaced by air bags that are inflated through a compressor to stiffen the suspension when needed. Air suspensions offer similar advantages to the hydro-pneumatic such as self-levelling or an improved ride quality. On the other hand the ride quality is not much greater than conventional coil-over suspensions, and the system suffers from a range of problems such as air bag, air line, compressor or dryer failures. Most of the top end manufacturers and tuning aftermarket companies have developed their own air suspension systems such as Ford (Ford and Lincoln), Land Rover, Mercedes-Benz (Mercedes-Benz and Maybach), Rolls-Royce, SsangYong, Subaru, Toyota (Lexus) and Volkswagen (Volkswagen and Audi) to name a few. PASM The PASM is the trade name for Porsche Active Suspension Management. The PASM is an active air suspension, which is an air suspension as mentioned above that features self levelling and ride height adjustment as well as roll and pitch control. This suspension is offered either as a standard or optional across the 911 and Cayenne ranges. EDC EDC (Electronic Damper Control) is the commercial name that BMW uses for its active suspension system. The ECD uses electronically controlled dampers to adjust the response of each of the wheels trough three different damper curve settings; soft, medium and hard. It is worth noting that there are other features that affect the suspension, but are not connected to the ECD such as the Cornering Brake Control or the Automatic Stability Control. ABC ABC (Active Body Control) is the trade name of Mercedes-Benz own active suspension. The system features roll, pitch and roll control achieved through servo actuated hydraulics. In this respect the system is similar to the current used in the Range Rover, but this system instead of using actuators, uses a modified suspension strut. The ABC suspension strut replaces the conventional dampers with electronically controlled plunger cylinder dampers whilst retaining the coil-over. The mechanism woks in a similar manner, the sensors and accelerometers evaluate the situation and the oil pump send the pressure required to operate the suspension, but instead of using a single valve block and two actuators, the ABC system uses a front and rear servo-valves that in turn sent the oil to each of the four plunger cylinder dampers. http://www.bose.com/learning/project_sound/bose_suspension.jsp http://www.bwigroup.com/static/suspension_magneride/ http://www.autoweb.com.au/cms/newsarticle.html?start=120showall=id=MERdoc=mer9905111 http://www.worldcarfans.com/10609056297/mercedes-cl-class-technology-active-body-control http://www.elecpubs.sae.org/NXT/gateway.dll?f=templatesfn=default.htm Society of Automotive Engineers (2006) à ¢Ã ¢Ã¢â¬Å¡Ã ¬Ãâ¹Ã
âDevelopment of Electric Active Stabilizer Suspension Systemà ¢Ã ¢Ã¢â¬Å¡Ã ¬Ã ¢Ã¢â¬Å¾Ã ¢. Paper no. 2006-01-1537. 2006 SAE World Congress Exhibition 3-6 April 2006, Detroit. Suzuki, S., Buma,S., Urababa, S., Nishihara, A., and Taneda, A Society of Automotive Engineers http://en.wikipedia.org/wiki/Active_Stabilizer_Suspension_System http://web.actwin.com/toaph/citroen/work/work.html http://www.porsche.com/kbase.aspx?pool=usatype=kbaseid=c2-detail-chassis-pasmlang=none http://www.porsche.com/kbase.aspx?pool=usatype=kbaseid=cayennecfl-detail-chassispasmlang=none http://www.bmw.com/com/en/insights/technology/technology_guide/articles/electronic_damper_control.html http://www.meeknet.co.uk/E38/EDC_III_Plus.pdf http://www.worldcarfans.com/10609056297/mercedes-cl-class-technology-active-body-control
Sunday, August 4, 2019
Huck Finns Ending Essay -- essays research papers
Dear Mark Twain, à à à à à After reading your famous novel, ââ¬Å"The Adventures of Huckleberry Finn,â⬠I donââ¬â¢t feel that the ending you have created is suitable for the book. Throughout the entire novel, Huck is going to all extremes to help out a friend in need, Jim. As a slave, Jim is grateful for having such an honest and open friend like Huck, but it seems as if when he finds out he was free all along, things change. When Jim and Huck found themselves at the end of their journey, neither had anything left to run from because Huckââ¬â¢s dad was dead and Jim found out that Mrs. Watson freed him when she passed away a few months ago and hoped he would soon be with his family. Because of this ending of your choice, we never find out Huckââ¬â¢s true feelings about helping a run away slave besides what we learned earlier in the book. It seems as if the special bond that Huck and Jim shared was over, each were going their own separate ways and moving on in their lives. à à à à à I found the ending very disappointing because throughout all the situations that took place in the book, Twain develops Huck as a character growing up and accepting his innate ideas of right and wrong, but we soon find out that Huck hasnââ¬â¢t grown at all. It seems as if Huck and Jim have formed a strong friendship with each other and Huck no longer looks down upon his as a slave, but sees him as an equal individual and a friend. When Huck is re-united with Tom, we find this to be false because he goes back to his old ways in which he was taught through his child hood and refers to Jim as property. à à à à à Another major disappointment is that Twain ends the novel as he started, with Huck running away from a civilized life style. In the beginning of the novel, Mrs. Watson was trying to civilize Huck so he decided to run away, at the end of the novel he fears that Aunt Sally is going to try and civilize him, so he decides to run west to the enchanted territory. This is an important technique that Twain uses to try and indirectly point blame at anybody, but it is obvious to the reader. Huck does not decide to leave because he thinks that society is rotten, he decides to leave because he thinks that he is the one that is rotten, and cannot be civilized, so he decides to go somewhere far away from civilization. Ironically, it is the corrupting... ...n. He applied what little knowledge he had well, and managed to help several people, including himself, along his journey down the river. à à à à à One idea that I found very interesting was that Huck and Jim were two completely different people running in the same direction in the beginning, and at the end they become the closest of friends, but when we soon learn that it seems as if all has faded away and the journey was useless. It comes across to the reader that both Huck and Jim were on the raft together for one reason and that would be to escape civilization. That would be the original idea but because of their bond thatââ¬â¢s not the intent of the book. Huck and Jim both had one thing that held them together and that was the goodness at heart, not only did Huck go against everything he was taught, but he didnââ¬â¢t have a problem doing it and by you ending the book in such a way just seems like everything that happened doesnââ¬â¢t matter and an incredible journey traveled by two amazing individuals doesnââ¬â¢t matter in the end. It just seems like Huck gave up on everything he worked so har d for and not only let himself down, but his best friend and companion Jim also.
Saturday, August 3, 2019
The Western World in the Eighteen and Ninteen Hundreds :: Nature Religion American History Essays
The Western World in the Eighteen and Ninteen Hundreds Nature underwent an incredible alteration in the way in which it was viewed by man in the Western World in the eighteen and nineteen hundreds. Venturing onto the banks of their land of promise, the first immigrants to Americaââ¬â¢s northeast shores found a trackless expanse which, instead of filling them with hope and promise for their newly won future, brought about trepidation and fear of that most ominous of adversaries: the unknown. The untamed wilderness was a frightening proposition to early settlers who were forced to reconsider their hasty renunciation of the rules and structure of civilized society. So as human beings are want to do, they imported their religious intolerance and chronic need to dominate and subjugate nature with them. As life inside the colonies became increasingly structured and illusionary of safety, the Wild outside became correspondingly malevolent as it impinged upon their cozy order and stasis. Religion continued unimpeded as the corn erstone of the colonistsââ¬â¢ beliefs and actions, and its message was successfully used to amplify and solidify their unhealthy fear of nature. Powerful religious figures like Jonathan Edwards used the image of a wilderness analogous to Hell to strengthen worldly renunciation and recognition of the need for man to conquer his surroundings. With time the concept of nature and manââ¬â¢s relationship to it would continue to evolve, but it was not until the visionary philosophy of John Muir in the mid 1900s that the place of nature in religion would be completely turned on its head. By comparing the differences in doctrine set forth by Edwards and Muir, it can be seen how philosophical views of nature came full-circle in early America. In the 1800s, Christianity was a dominating influence over daily life in the New World. The majority of the population lived each day mindful of how their actions in this life would affect their placement in the next. Anticipation of Heaven and fear of Hell were very real governing factors on peoplesââ¬â¢ behavior, and religious leaders of the time played off of this elevated degree of suggestibility and exploited the ever prevalent fear of the unknown in their preaching. Stories depicting the woods as a rendezvous point for sinners and the Devil were customary, even among the more secular of writers.
Muhammad Ali - Cassius Clay :: essays research papers
I consider a hero someone that has done great things. Some of the things that I consider great are, accomplished hard goals, stood up for their own rights, done things that would be hard for me to do, and done things that are extraordinary. Muhammad Ali-Cassius Clay is someone that fills my standards of a hero. Muhammad Ali has accomplished hard goals by getting medals in the Olympics. Muhammad Ali had to stand up for his rights when he started to box. He has accomplished things in his life that would be very hard for me to accomplish. Muhammad Ali has done things that I think are very magnificent. The thing Muhammad Ali has done makes him a hero to me. At first Muhammad Ali had no intension of boxing. After his bike was stolen, in the month of October 1954, when he was twelve, his whole life destiny changed in an instant. Upon finding out that there was a police officer in the basement of a gym, Ali went down in a horrendous state of mind exclaiming a ââ¬Å"state wide bike hunt (http://www.planetpapers.com/jump.cgi?ID=182.html),â⬠and said he was going to beat up the person that sole his bike. The way his life changed was that the police officer asked him if he knew how to fight and he said ââ¬Å"no.â⬠The policeman offered Ali lessons in how to box so that he could seek on the bike thief. This was the starting point in Muhammad Aliââ¬â¢s boxing career. In the late fifties, Cassius Clay rules Golden Gloves And the AAU national champion. A quick fight at the Rome Olympics in 1960, Cassius Clay a teenager knocks beats a Polish fighter by the name of Zbigniew Pietrzykowski to a ââ¬Å"bloody pulp.â⬠Muhammad Ali took home the gold. In 1962 Muhammad Ali states that he will knock out Archie More in the forth round. His prediction came true. In 1964, Muhammad Ali became world heavy weight champing by beating Sonny Listen. Although he did not knock him out, Sonny would not enter the seventh round making Muhammad Ali world champion. After knocking out Zora Folley, he did not fight for three and a half years. During this time he was standing up for his rights during the Vietnam War. He said, ââ¬Å"I have no Quarrel with Viet Cong (www.usatoday.com).â⬠He did not want to fight because the more troops we sent in, the more we lost.
Friday, August 2, 2019
Measuring Calories and Structure and Role of Macronutrients
My hypothesis was incorrect for this experiment; the manufacturerââ¬â¢s calorie count was considerably higher than the results of this experiment. Originally I thought that the manufacturers would have a lower calorie count in order to attract more customers into eating their products. Major companies would have proper facilities to be able to correctly measure the amount of calories in their products; however there are several things that could have given a more accurate reading in the experiment. I believe that this is the reason why the results from the experiment were so different to that of the manufacturers. It is important to know exactly how many calories are in the food and drinks we consume, this is because our bodies only need a certain amount which we can work out with our BMR. BMR stands for Basal Metabolic Rate and to calculate this it takes into account the persons age, weight, height and average level of exercise. If someone who has a BMR of 2200 calories and they are consuming 2500 calories each day then that person will gradually gain weight unless they increase their level of exercise, using this same type of thinking it would work the other way around, if the same person consumed 2000 calories each day then they would gradually lose weight. Considering the experiment actually showed that the manufacturers have stated lower amount of calories I think that the main reason for this would be down to the experiment itself. If I could do this experiment again I would try to find a way to trap more of the heat and send it towards the can, in this experiment the foil was just below the can which could allow a lot of heat to be lost to the environment which could make the results show the calories were lower than they really are. Another factor that could affect the results is that the tin can itself could take some of the heat away from the water, the experiment requires the water to get heat to gather a reading however if the can must be heated before it can reach the water then heat energy will be lost in the process. One aspect of the experiment that I would definitely change if I did it again would be to test more foods and to test each one multiple times rather than just once each, this can ensure a more accurate reading. Explain how cells and tissues make use of macronutrients and review the scientific evidence that supports the idea that an individual with a high BMI may have an increased risk of developing cardiovascular disease. To keep the human body functioning correctly it needs nourishment, through eating and drinking the body can get this. The most important nutrients the body requires are called macronutrients; they are called this because they are the big (macro) nutrients. There are three macronutrients that are vital for the body to survive and these are carbohydrates, fats and proteins. Carbohydrates can be obtained through consuming bread, cereals, honey or other sugars. These carbohydrates are the bodies main source of energy, once they are in the body they can be broken down in two ways, the simple sugars can be used straight away within the cells were as the more complex sugars need to be broken down by the enzymes in the gut to make them into the simpler sugars. Once these sugars are in the cells they can be used for internal respiration to help the cells and tissues to function. If not all the energy from the carbohydrates is required then the body can also store it as fat. Fats are used for two main purposes, the first being insulation. When the environment is too cold for the body to handle fats can help to insulate the heat and keep our bodies warm. The second use of fats is food storage, when the body is not getting enough energy from foods it can break down these food stores to produce extra needed energy. Fats can be obtained from foods such as butter or olive/sunflower oils. Proteins are the last macronutrient, these can be used for energy however this is not their main function. The main function of the proteins is the building and repair of tissues. Our muscles are made of an estimated 20% protein, when tissues such as muscles get damaged proteins are used to repair them so the body can function once more. Information provided by the BMJ (British Medical Journal) states that ââ¬Å"research has shown children who have a high BMI between 9 and 12 years of age are more likely to have high blood pressure, cholesterol and blood insulin levels (all risk factors for developing heart disease) by the time they reach adolescence. â⬠This shows that there is a link between BMI and the causes of cardiovascular disease. An individualââ¬â¢s BMI can be calculated by using their height and weight so it can tell you if you are over, under or the healthy weight. So this research is basically saying that if a child is overweight and continues to be overweight, the chances are they could develop symptoms that commonly lead to cardiovascular problems. Being overweight can be caused by the body storing too much fat, which in turn can be caused by eating too many fats and/or carbohydrates and not doing enough physical exercise. If a person has a high BMI it means that their body is getting more nourishment than it needs or is not using up enough of the carbohydrates leading to fat stores. Cardiovascular disease can be caused by a variety of different symptoms such as the ones mentioned in the report. An example of how these could be linked to having a high BMI could be high blood pressure, if there are fats or cholesterol blocking a part of the cardiovascular system, the heart will have to work harder to pump the blood around the body and by doing this it is causing unnecessary work for the heart, and this is what leads to more life threatening problems. What is the role of vitamins and minerals in the human diet? Give one example of each of the above that affect the same body tissue/organ if that are deficient. As well as the macronutrients the body also needs micronutrients (minerals) and vitamins. Examples of minerals would be calcium, iron, etc. These are important like the macronutrients however they are just needed in smaller doses giving them the name micro (small). Examples of vitamins would be vitamin C which is found in citrus fruits and vitamin K which can be found in leafy green foods such as broccoli or spinach. Much like minerals, these are important just like the macronutrients but these vitamins are just needed in very small doses. Examples of how these can affect the human body would be calcium and vitamin D. Calcium can be mainly found in dairy products as well as leafy green vegetables. Calcium is what builds and maintains our bones. Without calcium in our bodies bone density would decrease and would be more likely to suffer from breaks. As well as consuming enough calcium the body also relies on a healthy level of vitamin D, this is mostly produced in the skin through the use of ultra violet rays from the sun. Vitamin D promotes calcium absorption within the body. This means that bones rely on a healthy balance between both calcium and vitamin D. If the body is deficient in either one of these two nutrients the whole skeletal system could be at risk of developing problems such as ricketts or osteoporosis. Ricketts is when the bones a softened due to the lack of calcium present in them, causing them to be prone to fractures or deformity. Osteoporosis is when the bones become less dense causing them to weaken, become brittle and break. The main problem with osteoporosis is that once the bones have broken, they are difficult to heal again as there is simply not enough calcium to maintain them again.
Thursday, August 1, 2019
Southwest Airlines Organizational Culture
Southwest Airlines corporate philosophy can be credited to one of the founders Herb Kelleher. It is an airline company with a unique culture ââ¬Å"goofinessâ⬠, which keeps the morale of its employees high (Smith, 2004), and is a company that welcomes fun, dedication, and effort. Southwest believes that a happy employee will create a happy customer, and will create loyal customers. Mr. Kelleher effectively implemented its style, culture and emphasis on quality in the daily actives at Southwest (Smith, 2004), and he did so without the help of outside consultants.The Airline was founded in 1971 by Herb Kelleher and Rollin King, and in the 1980ââ¬â¢s nine years after Southwest was established they adopted a mission statement (Smith, 2004): ââ¬Å"The mission of Southwest Airlines is dedication to the highest quality of Customer Service delivered with a sense of warmth, friendliness, individual pride, and company spiritâ⬠(ââ¬Å"Mission & Visionâ⬠, 2011) . This mission statement also ties to their motto ââ¬Å"We operate with a Warrior Spirit, a Servantââ¬â¢s Heart, and a Fun Luving Attitude (ââ¬Å"Mission & Visionâ⬠, 2011).In order to accomplish this mission statement, the company is committed to their employees, by providing their employees a stable work environment with equal opportunity for learning and personal growth. Creativity and innovation are encouraged for improving the effectiveness of the airlines. Employees will especially be provided the same concern, respect, and caring attitude within the organization that they are expected to share externally with every customer (ââ¬Å"Mission & Visionâ⬠, 2011).Based on my finding Southwest Airlines aligns their organizationââ¬â¢s espoused values along with their enacted values, because they were developed from the leaderââ¬â¢s values, beliefs, and assumptions about people and work (Quick, 1992). The actions of Mr. Kelleher in top management, has set the organizational norm s. It can be seen in Southwestââ¬â¢s three values humor, altruism, and ââ¬Å"luvââ¬â¢. Humor is used as one of the hiring criteria, Southwest looks for people with certain attitudes, who arenââ¬â¢t so tight and restrictive, but with an up-beat attitude (Quick, 1992).Altruism is a corporate value that begins at the top and trickles downward (Quick, 1992). Southwest Airlines holds this value of great importance, because they believe in caring and giving to other people (Quick, 1992). Communication at Southwest is a key factor for its success as a company, and will remain that way for the future. It is with effective communication that Southwest Airlines has been able to provide guidelines that their employees are able to follow.At any job, job descriptions evidently describe responsibilities between employees and departments (Smith. 2004). But at Southwest their philosophy is shared goals, shared knowledge and mutual respect, with the expectation that each personââ¬â¢s jo b includes helping fellow colleagues with their work any time necessary (Smith, 2004). Good communications skills are critical to a businessââ¬â¢s success, and Herb Kelleher is renowned as an effective communicator and has gained the trust of his employees through the years.Conflict is an important and useful part of communication, and can be a misconception in group communication, because it can often be viewed as bad and should be avoided. However, in the case of Southwest Airlines, it is a company who has an open door policy, ââ¬Å"can doâ⬠and ââ¬Å"letââ¬â¢s try problem solutions (Bunz & Maes, 1998). Employees are encouraged to generate ideas and then try them (Bunz & Maes, 1998).Conflict at Southwest Airlines challenges employees to research issues in greater detail, are able to learn more about issues, and enhance the openness for change and new innovations. Southwest also believes functional accountability leads to finger pointing between departments. Therefore, they utilize team metrics rather than functional metrics. Another example of how this company turns conflict into positive group communication (Smith, 2004) Conclusion In conclusion Southwest Airlines founder Herb Kelleher has done an excellent job at combining humor, altruism, and love.He created a positive culture and focused on people as people and identifying them as valuable assets to the company, thus making their organization and its employees more effective. The corporate culture he created is the glue that holds Southwest together (Smith, 2004), and Mr. Kelleher has been pivotal in crafting one of the most distinctive organizational cultures in United States today (Quick, 1992). Southwest airline treats their employees the way they want them to treat their customers.
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