Car Accidents: Causes, Statistics and Prevention

Car Accidents Causes, Statistics and PreventionIntroductionCars today play a vital role in our lives. They bring ease and satisfaction to our lives, because these vehicles second us transport from one place to another without exerting so much essay on it. Wherever you desire to go cars atomic number 18 the fast and easiest solution for your problems.Plus its mostly used in our daily activities, transportation from theme to school safely, going on road trips since you forget not be able to walk carrying your luggage easily, etcetera In addition, it comes in handy during emergencies.Moreover, cars are helpful when it comes to safety, but accidents sometimes occur. Scientists and mechanics are attempting to overcome accidents by trying to figure out the faults behind the car.As explained in Importance of Cars article, submitted on June 25th, 2012.Reasons behind car accidentsThere are plenty of reasons behind car accidentsThe fixedness of the carFor example, in Ireland it is one of the biggest factors that contribute to road deaths. Excessive and out or keeping(p) repair causes more than 40% of deadly collisions.Excessive speed is when you cross the speed limit.The table below explains how a small difference in the speed of the car could be the difference between the life and the death of a defenseless pedestrian.The figure below sums up the stopping distance of the car in wet conditions.While the other figure explains the stopping distance of the car in normal conditions.The pictures above are provided by Holroyd City Council Australia.Driving in FogFog can be defined with thick cloud of tiny drops of water in the air according to Oxford Learners bag Dictionary. It makes madcap perilous in these conditions, since it reduces visibility to rough 400 metres.How fog affects visionFirst of all, the ones vision of speed is twisted. He might think that a vehicle is driving die awayer than it actually is, as a result to the lowered distinction. Furthermore, as this person will not be able to pass judgment his own speed by taking a look at his surrounding, since he is enclosed by a foggy atmosphere.Secondly, distance may be underestimated. Since people distinguish between far and nearby vehicles based on whether they are blurry or not. As a distant object or vehicle might appear blurry, and the drivers mind will interpret that the object is actually far. Therefore accidents are more likely to dispense place.DistractionIf a person diverts his attention away from the road it can cause an accident. Whether that person is adjusting the stereo, using his cell phone, or even a misdirection outside on the streets, it all might happen in a split of a second.As explained in the picture above, using a fluid phone while driving will reduce the drivers reaction time as decompress as a 70 class old.Driving under influenceDriving under the influence of alcohol leads to accidents, because its like a tranquillizer and a powerful depressant drug, so it leadens down brain functions. The brains ability of processing information is affected by alcohol. As it diminishes consciousness and sightA drunk driver would find it toilsome tojudge the speed of your vehicleJudge the distance between your car and other carsNotice traffic lights, pedestrians and other hazardsConcentrate on the task of drivingKeep your balance, especially if you are riding a motorcycleStay awake when you are driving and react appropriately to things going on around you, particularly if an unexpected hazard should suddenly appear.As reported by the Department of Transport. Furthermore, a person may take more risks than usual, and alcohol would slow down their nervous system, and some people may not react at all.Here are some statisticsEvery 53 minutes in America, someone is killed in a drunk driving crash. That equates to 27 people every day.211 children were killed in drunk driving crashes in 2010. Of those 211 children, 62% were riding in the car with the imp aired driver.How Physics Improves Car SafetySeatbeltsAccording to Sir Isaac Newton in his 1st law which is if the resultant force is zero, then the object willIf stationary, remain stationary.If moving, keep moving at a steady speed in a straight line.During the accident, forced are exerted on the car. But not directly to the passenger, since he will keep moving even when the car comes to a stop. They might even hit the steering wheel or go out through the window. The speed of the car before it crashes is sharply equal to the speed of the passenger when it hits anything inside the car. Thats why seatbelts are made to slow the driver down.Again, Newtons 2nd law states thatThe acceleration of an object is directly proportional to the force applied and inversely proportional to its mass.This law is be by the equation below. When the accident occurs the seatbelt diminishes the stopping distance. As explained in the diagram thats on the left.The total force exerted on the passengers dea d body equals the mass of the vehicle times the vehicles acceleration. When seatbelts are used in the correct way, they lessen the external force of the accident and allocate the initial inertia of the collision across the body. Throughout crashes, seatbelts reduce a lot of force sensed by the passenger and lessen the severity of that persons injury.AirbagsWhen the persons head jolts forward during the vehicle crash, it will be protected by the airbags that inflate whenever the car crashes from certain aspects. So basically, its purpose is to help reduce the passengers speed when they collide with the interior vehicle without getting injured.Each and every object in a car has mass, speed and direction (velocity). If a person is not secured inside a car he will continue moving in the same direction (forward, or depending on the crash itself), with the same speed as the cars, and when the car comes to a stop, until a force is exerted on that person.This passenger has momentum. So in exhibition to stop it, a force has to act on them. Such as airbags that provide impulse. The more time the force has to act on the passenger to slow them down, the less damage caused to the passenger.The airbag has a certain amount of time to inflate when the car crashes with another object, and then the passenger hits the steering wheel. After the collision occurs in 15-20 milliseconds, the crash sensors will decide whether to inflate or ot to inflate the airbag (6-10km/h). If the sensors decide to puff up the airbag it Is about 25 milliseconds after the collision.The airbag takes about 20 milliseconds to inflate, so the person can crash onto it.The person has made contact with the airbag around 60 milliseconds, and then it begins to deflate. The deflation process take about 35-40 milliseconds.Today, airbags can be nominate in different places in the vehicle. Such as the head airbags, steering wheel airbag, passenger airbag, and side airbags,Even though airbags are found, the pass enger lock in has to buckle his or her seatbelt, because it will decrease his injury.Rule and Regulations In CanadaFog. (n.d.).The American Heritage Dictionary of Idioms by Christine Ammer. Retrieved May 12, 2014, from Dictionary.com websitehttp//dictionary.reference.com/browse/foghttp//www.roadsafetymayo.ie/CausesofAccidents/http//www.roadsafetymayo.ie/media/Media,4515,en.pdfhttp//boltsaction.com/the-importance-of-cars-in-our-lives/http//kimenglish9.wordpress.com/2010/12/09/car-accidents/http//ffden-2.phys.uaf.edu/211.web.stuff/sill/http//www.who.int/world-health-day/ antecedent/2004/en/traffic_facts_en.pdfhttp//www.jstor.org/discover/10.2307/1830396?uid=3738872uid=2uid=4sid=21104009116417http//www.roadsafetymayo.ie/CausesofAccidents/http//seriousaccidents.com/legal-advice/top-causes-of-car-accidents/fog/http//tristanmac.tripod.com/id14.htmlhttp//books.google.ps/books?id=kE9wMh6DjlMCpg=PA94dq=how+roads+improve+car+safety+physicshl=ensa=Xei=XDlxU9eLEaLe7Aax2ICoDAved=0CCgQ6AEwAAv=on epageq=how%20roads%20improve%20car%20safety%20physicsf=falsehttps//www.google.ps/search?q=how+seatbelts+workoq=seatbelts+workaqs=chrome.1.69i57j0l3.3914j0j4sourceid=chromeie=UTF-8http//tristanmac.tripod.com/id8.htmlhttp//www.transport.wa.gov.au/mediaFiles/licensing/LBU_DL_B_AlcoholAndDriving.pdf

Optimum Temperature for Catalase in Potato

Optimum Temperature for Catalase in Potato total heat peroxide is a common by-product produced during metabolism in living organisms. On accumulation, hydrogen peroxide can have various implications on living cells such as skin disorders (Schallreuter Rokos 2006). Decomposition of hydrogen peroxide gives come out of the closet right water and oxygen, as shown by the equation 2H2O2 (aq) 2H2O (l) + O2 (g).The rate of decomposition of hydrogen peroxide is low and it can be increased by an enzyme called Catalase. An enzyme is essentially a biological catalyst that can increase the rate of reaction but remains chemically unchanged at the end of the reaction (Pang 1997, p.63). Catalase readily speeds up the breakdown of hydrogen peroxide at a rate of millions of hydrogen peroxide molecules per second (Goodsell 2004). It is particularly important in liver cells and kidney cells for removal of both toxins present in the blood stream to maintain health (Alberts et al. 2002).By varying th e temperatures using water baths and measuring the time taken for first frothy and when bubbling remains constant, the rate of breakdown of hydrogen peroxide can be calculated by the reciprocals of the measured time. The temperature at which the reaction rate is the sterling(prenominal) is referred to as optimum temperature (Pang 1997, p.70). That is the say, enzyme catalase catalyses the breakdown of hydrogen peroxide the most effectively at this temperature.AimsIn this experiment, the influence of temperature on the natural process catalase is examined. We aim to find out how its activity changes over a range of temperatures, in order to establish the optimum temperature of this enzyme catalysed reaction.MethodsEquipmentWater bath (10C, 35C, 45C, 60C)IceBeakers x2 (for the icing bath)Thermometer (to ensure that the ice bath is Test tubes x10Non-permanent markerTimerHydrogen Peroxide x200mLCork BorerScalpelsWatch glassesAluminium Foil principlePotatoPipettorSafetyHydrogen Peroxi de (H2O2) is corrosive and hence safety glasses must be worn to prevent eye contact.The decomposition of Hydrogen Peroxide would produce pure oxygen so combustible materials must be kept well away.Experimental proceduresSet up the following appliance according to the following conditionsTest TubeTemperatureAB35CC45CD60CERoom temperatureLabel the test tubes to be used, according to the above table.Cover the stock H2O2 with aluminium foil to prevent decomposition under light.Prepare enzyme catalase by inserting through the centre of the murphy, with aid of a cork borer.Using the scalpel and ruler, cut 1cm pellets of potato that was extracted with the cork borer.Half-fill a beaker with tap water and add in unkept ice to make water bath for A. Wait for several legal proceeding to allow stabilization of temperature.Insert test tube A, leave for a 3 minutes before using the 10mL pipette to add 8mL H2O2 to the test tube.Add the 1cm pellet of potato to the test tube.Start the timer and record the time requisite for the first bubbling to occur and the time when the sum up of bubbles produced remain constant. Record all observations.Repeat steps 6-8 for test tubes B to E but without increase of ice. Put them directly into the water baths available in the laboratory.Repeat steps 4-10 twice, recording all observations and results.Average the results obtained for test tubes A-E in each experiment (ignoring outliers), and spot your results against temperature.Extrapolate the graph to determine the optimum temperature for enzyme activity.DiscussionTo achieve results with greater accuracy, we have taken several precautions. Firstly, I was the person who recorded the time passim the experiment and this could avoid discrepancy caused by different reaction times among individuals. Secondly, the use of cork borer might ensure uniform sizes of potatoes so that the amount of catalase would be relatively the same. Thirdly, stock H2O2 solution was wrapped to reduce unwanted decomposition under light. Fourthly, test tubes with potatoes were put into the water baths for a few minutes before adding H2O2 and this allowed the temperature of the content to reach that of the water baths. Lastly, no temperature was applied to tube E (at room temperature) and it acted as a control to show that the changes in activity of catalase resulted from changes in temperatures.From our results, enzyme activity is low at very low (0.5C) and high (61.2C) temperatures. At very low temperatures, substrate and enzyme molecules lack energy for collisions and hence fertilization to catalase reactions and at very high temperatures, the alteration of the binding site of enzyme sets in and the denatured enzyme catalyses reactions with decreasing efficiency (Pang 1997, p.70). The optimum temperature for catalase activity was around 35.3C, as indicated by the peak in figure 2. This agrees with the research conducted by Yumoto et al. (1999, p.67), in which catalase works the best at about 30C. However, this does not agree with our findings from figure 1 (optimum temperature at around 40C), whereas the peak activity occurs at 35.3C and 43.5C. This might be explained by the fact that first bubbling occurred within a few seconds on addition of H2O2 to potato and it was difficult to measure this time precisely. Therefore, the time taken for bubbling remained constant might be a develop representation of our experimental outcomes.As regards the observations, it is evident that the colourless gas bubbles are oxygen and the reason why potato sank to the bottom might be explained in terms of density. As dilute H2O2 solution was used, the density of solution can be assumed to be equal to water, which is approximately 0.9970gcm-3 at room temperature (Aylward Findlay 2008, p.154). It is liable to predict that potato is essentially denser than water and thus it sinks. However, the gaseous oxygen produced on the surface of the potato can produce an upthrust to push the potato upwards (Goodwin 2002). Therefore the potato temporally floats on the surface. When the gaseous oxygen is discharged at the surface, the effect of density takes priority again, causing the potato to sink.patronage of careful design of our protocol, some experimental errors could have arisen. The 8ml H2O2 was added on a 4ml basis by a pipettor and the timer was started at the first addition. In some other words, the measured time could have differed from the actual one by several seconds. This inaccuracy might be improved by the use of graduated pipette so that the 8ml solution could be added via one addition without any delays. Moreover, we forgot to dry the test tubes completely in some of our trials and this could have caused dilution of the H2O2. This error could be fixed by the use of long cotton sticks to dry the inner parts of the test tubes. Furthermore, the judgements of whether or not the amount of bubbles remained relatively the same might be inseparable and this problem could be solved by addressing our focus on the record book of oxygen evolved instead. For example, we might collect the oxygen over water and measure the volume of it every 30 seconds for 5 minutes with a calibrated syringe (Morris 2006). In this way, we might achieve a better measurement of the reaction rate. From this disgrace in the design, I realized the importance of consulting more sources rather than relying on our own knowledge as we lack experience in experimental design. resultIn conclusion, enzyme catalase exhibits low activity at low temperatures (0.5C) and high temperatures (61.2C). Its activity is the greatest at around 35C. The experimental set-up was generally satisfactory to diminish errors except of some defects such as the methodology in measuring the rate of the reaction. It is suggested that more research should be done in designing the experimental protocol.

Representations of Native Americans in Dances with Wolves and The Searc

Film is more than the instrument of a representation it is in addition the object of representation. It is not a reflection or a refraction of the real instead, it is the likes of a photograph of the mirrored reflection of a multicolored image. (Kilpatrick) Although films have found a place in society for about a century, the labels they possess, such as stereotypes which Natives American are recognized for, have their grow from many centuries ago (Kilpatrick). The Searchers, a movie directed by John Ford and starred by John Wayne, tells the story of a veteran of the American courtly War and how after his return home he would go after the maligned Indians who killed his family and kidnapped his younger niece. After struggling for five years to recover his niece back, who is forthwith a young woman, she is rescued by his own hands. Likewise, Dances with Wolves is a Western film directed and starred by Kevin Costner. It is also situated during the American Civil War and tells the story of a soldier named John Dunbar that after a suicide attempt he involuntarily leads Union troops to a triumph. Then, by his request he is sent to a remote outpost in the Indian frontier before its gvirtuoso. There, the contact with the natives is eminent and and so it shows how through those contacts this soldier is transformed into another Indian that belongs with the Sioux to tribe and who is now called Dances With Wolves. While both John Ford and Kevin Costner emphasize a desire to cut to the indigenous people, they use similar themes such as stereotypes, miscegenation, and the way characters are depicted conversely, these two movies are different by the way the themes are real within each film. John Fords The Searchers was giving the intention of ap... ... due to the way their roles interact with the Amerind people in the film.As a result, both films represent Natives Americans under the point of view of non-Native directors. Despite the fact that they made use of the fabricated stereotypes in their illustrations of the indigenous people, their portrayal was revolutionary in its own times. Each of the films add in their own way a new approach to the representation of indigenous people, their stories unfold partly unlike. These differences make one look at the indigenous not only as one dimensional beings but as multifaceted beings, as Dunbar say, they are just like us. This is finally a sense of fairness and respect by the non-native populations to the Native Indians.Works CitedJacquelyin Kilpatrick , Celluloid Indians. Native Americans and Film. Lincoln and London University of Nebraska Press, 1999

Comparing Ray Bradbury‟s Fahrenheit 451 and Suzanne Collin‟s The Hunger Games :: compare contrast

Fahrenheit 451 and the Hunger Games are both intertwined with a futuristic version of human entertainment and a society absent of religion. Both societies are subjected to gruesome and brutal activities as a form of enjoyment. The desire for a thrill and an epinephrin rush dominates the minds of most people. In Fahrenheit 451, its very likely that many a(prenominal) people succumb to their deaths from accidents but can considerably replaced by members of the parlor family who they accept as their own. In the same way, The Hunger Games consists of exactly what the title suggests. They are annual games, which include starving and murder and dispense as societys primary source of entertainment. Most people dont enjoy watching the games but, the Capitol forces the districts to watch for it believes they are a dangerous source of entertainment. Seeing how the Hunger Games are basically murdering each other until the last child is standing, it relates closely with the kind of ente rtainment that the society of Fahrenheit 451 provides with the adrenaline and thrill of the same kind. The people in Fahrenheit 451 like their source of entertainment in the way they approach it but the instances of conformity remains the same. This is contradictory that of the people of the districts in The Hunger Games. There is indeed a difference between the both societies yet, in the Hunger Games there is less time for many because so many people are working toward survival, while in Fahrenheit 451, entertainment is something that people do daily. The existence of adrenaline entertainment is uniform in both societies. Yet they differ in whether or not the people actually like the entertainment. Another blaring difference between the two societies in Fahrenheit 451 and the Hunger Games is that of their government. The form of government in Fahrenheit 451 consists of a democracy whereas the Hunger Games government is corrupt and resembles nothing of a democracy. even off t hough we may see the world of Fahrenheit 451 as strange and bad there is still a democracy, which we consider to be fair. A affinity between the two governments systems would be how they both suppress things much like it is today, that each government believes could hurt the stability of society. The Hunger Games government suppresses interaction between districts to instill conformity because they know if there was interaction it could cause unhappiness and take away from the level of cooperation between the people and the government.

The Age of the Global Interactive Agency Essay -- Business, Technology

It was only a matter of time before the fledgling web design firms and online advertising agencies that were spawned in the new-fangled 1990s grew and coalesced into mature national companies. Now, these companies name grown too large for a single country and the age of the global synergetic place is upon us.Led by companies such as 7 Strategy, a combination of design, e-commerce, database management and a host of other marketing and technical skills be unite under one roof to provide companies from around the world with multi-national exposure on the Internet.In a unique twist, 7 Strategy has several briny offices. One is dedicated to atomic number 63, one to the Far East and one each for the Eastern and Western halves of the United States. While each office is responsible for a certain section of the world, all of their clients have access to the full breadth and range of 7 Strategys marketing experience and technical expertise. When asked somewhat their success, Director of Client Services, Chase Welles, states, matter-of-factly, Its our ability to integrate a uniform, company-wide, back-end database and e-commerce platform with various front end designs customized to regional marketplaces that differentiates us from less well-diversified interactive organizations. He then pauses to take a breath.This statement is rather sweeping and encompasses quite a broad swathe of technological know how and marketing expertise. Indeed, these abilities that do not seem to be in short supply at 7 Strategy.Founded in 2001, this company has never been a boutique design firm. Instead, they have focused on offering their business clients a full range of interactive marketing products that can achieve real and measurable business growth. oral sex ... ...e implementation of 7 Strategy as the company has experienced significant annual growth since its inception. 7 strategy has engineered some remarkable success stories passim its history. They have created search en gine optimizations that have produced results on the first page of the Google search engine. They have also crafted award winning website designs for clients in North America, Europe and Asia. Despite these successes, the management and team at 7 Strategy would argue that, most importantly, they have delivered significant and measurable increases in the business metrics that are most important to their clients. In short, years of focused research and practical strategy testing are combined by 7 Strategy with passing talented and innovative designers and engineers to produce highly functional and exceptionally attractive interactive experiences.

Jehovah Wittness Beliefs Essay -- Religion

The Jehovah Witness beliefs are in strict accordance to the record. Their Bible is called the New World Translation Bible. Their God is the God of the Old Testament and they call him Jehovah. Jehovahs reject the symbol of a cross because they consider it comes from a pre-Christian, pagan origin. They deliberate Jesus was nailed to a single upright wooden stake. They don not believe in the Trinity. They believe that the Holy savor is a force, which intervenes for God on earth. Jehovahs view Satan as the enemy of God. The way to resist him is to learn about Jehovah. Jehovahs accept Genesis as the creation of man. They also believe that every man is born with original sin. They say that when you die your spirit dies along with you. totally some will experience eternal life when they are resurrected. Jehovahs believe that salvation is achieved by accepting Christ as the Lord. They believe that it is possible to fall from grace and heaven is a place where Jesus Christ and the other Tr ue Christians will live. Only 144,000 will have overture to Heaven. Hell does not exist for them because...

An Explication of Do Not Go Gentle into That Good Night :: Do Not Go Gentle into That Good Night

Introductory Paragraph Dylan Thomass villanelle Do Not Go Gentle into That Good Night is addressed to his suppurated father. The poem is incomparable in a number of ways, most notably in that contrary to most common poetic treat manpowerts of the inevitability of death, which argue for serenity or honour the peace that death provides, this poem urges resistance and rage in the face of death. It justifies that unusual attitude by describing the rage and resistance to death of four kinds of men, on the whole of whom can summon up the image of a complete and satisfying life that is denied to them by death. First body paragraph The first tercet of the in an elaborate way rhymed villanelle opens with an arresting sop up. The adjective gentle appears where we would expect the adverb gently. The strange diction suggests that gentle may describe both the going (i.e., gently dying) and the person (i.e., gentleman) who confronts death. Further, the vocaliser characterizes night, here clearly a figure for death, as good. Yet in the next line, the speaker urge that the aged should violently resist death, characterized as the tight-fitting of day and the dying of the light. In effect, the first three lines argue that however good death may be, the aged should refuse to die gently, should passionately spout and rage against death. The second body paragraph describes the second tercet. The third body paragraph the good men The fourth body paragraph the wild men The fifth body paragraph the grave men Concluding paragraph The speaker then calls upon his aged father to join these men raging against death. unless in this final stanza do we discover that the entire poem is addressed to the speakers father and that, despite the generalized statements about old age and the focus upon types of men, the poem is a personal lyric. The edge of death becomes a sad height, the summit of wisdom and experience old age attains includes the sad knowledge of lifes failure to sat isfy the vision we all pursue. The depth and complexity of the speakers sadness is startlingly given the second line when he calls upon his father to both curse nd bless him. These opposites richly suggest several related possibilities.