Preparation of Identification by Ir and Nmr Spectroscopy free essay sample

The reactive acid chloride can then be treated with a primary or secondary amine to give the amide along with HCl, which reacts with the excess amine to give an alkylammonium chloride salt. The mechanism of this process is shown on the following page in Scheme 22: [pic] Scheme 2 To carry out this reaction, the apparatus shown in Figure 1 will be assembled. The apparatus must be dry, since thionyl chloride will react with water to give sulfur dioxide and hydrogen chloride. The acid chloride will then be cooled to room temperature and dissolved in anhydrous ether. Ice-cold diethylamine will be added as a solution in anhydrous ether to form the amide. The resulting ether mixture will washed with aqueous sodium hydroxide (to remove any excess acid chloride), then washed with hydrochloric acid (to remove any excess diethylamine). The resulting ether solution of DEET will be dried and evaporated to yield the crude product, which will then be purified by column chromatography to afford pure DEET. We will write a custom essay sample on Preparation of Identification by Ir and Nmr Spectroscopy or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The percent yield from m-toluic acid will be determined and the product will be analyzed by transmission infrared spectroscopy (IR) as a neat sample using NaCl plates5 to confirm its structure by (1) looking at the major absorptions and comparing them to a correlation table6 and (2) by comparing the spectrum to that of an authentic sample. Thionyl chloride is toxic and corrosive! Do not breath the vapors! Use in a hood! When heating a reaction apparatus, be sure that it is open to the air so that pressure build up and subsequent rupture of the apparatus does not occur. When heating liquids, make sure the liquid is stirred (or a boiling chip is added) to prevent â€Å"bumping†. When performing an extraction, make sure to vent the separatory funnel often to prevent pressure build-up. The apparatus shown in Figure 1 was assembled. The 10-mL reaction flask was charged with 0. 275 g of m-toluic acid (0. 0020 mol) and 0. 30 mL of thionyl chloride (0. 492 g, 0. 0041 mol). The condenser water was started, and the mixture was gently heated with stirring on an aluminum block (block temp ~ 90 oC) until boiling started. The reaction mixture was then gently boiled for about 15 minutes. After the boiling period was finished, the reaction mixture was cooled to room temperature. 4. 0 mL of anhydrous ether were added, and the mixture was stirred at room temperature until a homogeneous mixture was obtained. To this solution was added (dropwise over a 15 minute period) a solution of 0. 6 mL of cold (0 oC) diethylamine (0. 462 g, 0. 0063 mol) in 1. 33 mL of anhydrous ether. During the addition, a thick white cloud of diethylamine hydrochloride was formed. After complete addition, the reaction mixture was stirred at room temperature for about 10 minutes. 10% aqueous sodium hydroxide (2 mL) was then added, and the reaction mixture was stirred for an additional 15 minutes at room temperature, then poured into a separatory funnel and allowed to separate. The aqueous layer was discarded, and the organic layer was washed with an additional portion of 10% aqueous sodium hydroxide (2 mL), followed by a portion of 10% hydrochloric acid (2 mL). The organic layer was washed with water (2 mL), dried (Na2SO4) and evaporated to yield crude N,N-diethyl-m-toluamide as dark brown liquid. The crude product was filtered through a short alumina column using hexane as the eluent (~ 5 mL). The hexane solution was evaporated to give 0. 340 g of pure N,N-diethyl-m-toluamide as a yellow liquid. Reaction of m-toluic acid with thionyl chloride, followed by diethylamine produced 0. 340 g of a yellow liquid the IR spectrum of which unequivocally showed the presence of the amide carbonyl functional group at 1633 cm-1. In addition, absorptions due to aliphatic C-H (2980 – 2880 cm-1), and aromatic C=C (at 1585 cm-1). The IR spectrum is attached to this report. These data are consistent with the structure of N,N-diethyl-m-toluamide (DEET), shown in Figure 2 below: [pic] Figure 2: N,N-Diethyl-m-toluamide (DEET) In addition, the IR of the product closely corresponds with that of an authentic sample of N,N-diethyl-m-toluamide (DEET) shown in the lab text. 9 Also, the 1H-NMR shows the presence of four (4) aromatic protons in the region 7. 3 – 7. 1 ppm, as well as a three (3) proton singlet at 2. 35 ppm, which corresponds to the benzylic methyl group. The presence of two ethyl groups is clearly shown by the presence of two quartets which integrate to 2 protons each at 3. 53 and 3. 24 ppm, and two triplets which integrate to 3 protons each at 1. 23 and 1. 09 ppm.

Thorpe Park Essays

Thorpe Park Essays Thorpe Park Essay Thorpe Park Essay My aim is to investigate the different ways in which physics are involved to create thrilling yet safe rides. Some examples of the physics used in a theme park, which I intend to explore in this piece of coursework, are the following:* The sensation of weightlessness* Large accelerations of the body* Large decelerations of the body* Changes in kinetic and potential energy* Newtons laws of motion* Power and work done* Lifting forces and stopping forcesI have chosen the ride called detonator. I must find out two pieces of information needed before I carry out my investigation and carry out my calculations. I will firstly need to estimate the mass of the carriage and the height (displacement) of the tower.Estimating the massThere are twelve seats, each holding a person who on average has a mass of 90kg. There is a large carriage with a mass of 1500kg although this is an estimate. The total mass equals 2580kg, this is an estimate this is not very accurate as not every rider is identical and has a mass of 90kg some may have a higher or less weight. This will affect my results slightly.Estimating the heightTo estimate the height of the detonator I will use similar triangles to accomplish this.Two triangles are similar if they have the same shape. They dont have to be the same size. For the smaller triangle, I will evaluate the ratio of the side with length h to the side with length l. This is the same as, with respect to the larger triangle, the ratio of the side with length H to the side with length L. That is h/l = H/LI used two rulers to record the measurements of l and h, the two rulers being 90 degrees parallel to one another. The value of L, length, was recorded by the distance from where I was to the point at where the ride is situated. I recorded the values for:* h = 29.1cm = 0.29meters,* l = 37.1cm = 0.37meters,* L = (97 paces at 0.39) + 6m = 43.83meters.I am now able to calculate the height of the detonator (H):h/l = H/L h/41.8 = 0.29/0.37 h= (43.83x 0.29) /0.37Height = 34.35 meters.When I calculated the height of the ride I did not consider where the carriage started, therefore the displacement is not from the top of the tower. My calculation is not very accurate. I will now subtract 3.27 meters for the length of the carriage. So my new height is 31.08 meters.Average VelocitiesOnce I have estimated the height of the tower I am now able to calculate the average velocities of various stages in the ride. Velocity is the speed at which the carriage changes position. A higher velocity means an object is travelling faster between two given positions. I will include the average velocity of the carriage on its journey up to the top of the ride, the average velocity of the carriage on its journey down the ride, the average velocity of the whole ride, the average velocity of the free fall distance part of the ride. I will also estimate the average velocity of the braking distance. I used a stopwatch and was able to time how long the carriage t ook to complete all five stages of the ride. With this value I was able to calculate the velocity with the simple formula s=d/t. My average velocities are unfair, as I have not taken into consideration air resistance or friction, which would slow the carriage down slightly. Although in most cases this is small enough to be neglected.I got the free fall distance by estimating the displacement of the ride from where the carriage started at the top of the tower until the while plates located on the side of the tower, which are used to slow the carriage down. This is the displacement that the carriage is travelling whilst in free fall. I think this is an inaccurate measurement as I used my observation. I latter went onto the Thorpe park website and found that the free fall distance is actually 29.5meters. I estimated 27 meters and was only 2.5 meters too short, I think that is only a small inaccuracy.I went on to the Internet and found the actual average free fall velocity of the ride t o be 15ms-1, with my value at 11.64ms-1. This is only a slight inaccuracy and is a fairly reasonable result. The inaccuracy may have been caused by the many possible human errors or slight inaccurate results collected by using the stopwatch. An example would be the delay or quickness of my reactions to stop the watch when the required destination is met.TimeI recorded the times with a standard digital stopwatch. I recorded three sets of results for the five times and worked out an average for a more accurate set of results. This was a reliable but inaccurate method as many human or technical errors where possible, causing an unfair set of results.Free fallGalileo first introduced the concept known as free fall. According to legend, Galileo dropped balls of different mass from the Leaning Tower of Pisa to help support his ideas. These classic experiments led to the finding that all objects free fall at the same rate, regardless of their mass.An object in the state of free fall is onl y influenced by the force of gravity. The object has a downward acceleration toward the centre of the earth (9.81ms-2), the source of gravity.I will use a constant acceleration formula to investigate whether the detonator has an acceleration of -9.81ms-2, as Galileo predicted. The displacement of the free fall ride is 27meters as I previously estimated (see page 1). The time of the free fall part of the ride is 2.32 seconds as I also previously recorded.A=?S=27metersT= 2.32 secondsU= 0ms-1V=S= ut + 1/2at2S = 1/2 at2a= 2s/t2a = 2x 272.322a= 10.03 ms-2This is near the value of acceleration due to gravity. I think this is a reasonable result due to the limitations. Firstly the displacement was just an estimate and may not be the exact value, this would affect the result, as it may be a greater or less value. The time is not the exact value of the free fall ride as I used my observation to stop the watch when I thought the carriage reached the white plates, when it started to decelerate , this may not be an accurate value. With such a small inaccuracy I think that I can safely draw the conclusion that the carriage free falls at the same acceleration as that of the gravitational pull of the earth, as predicted above. I have taken into consideration inaccuracies. Another ride that relies on free fall is called tidal wave. This is a roller coaster, which descends down a slope with a component of the gravitational pull of the earth. As further work I could work out the acceleration of this ride to investigate the component of gravity.Newton later took Galileos discoveries concerning mechanics and incorporated these principles into his laws of motion. Newtons first law applied very much to the ride which states; every body remains at rest or in uniform motion in a straight lie unless acted upon by a force. It is this first law of motion, which applies to the ride, firstly when the ride is at the top and is stationary. Whilst at the top there are two forces acting upon t he seat of the carriage. The forces act in such a way that they counteract to each other. As the rider sits in their seat at this moment, the seat pushes upward with a force equal in strength and opposite in direction to the force of gravity, which is causing the passengers weight. These two forces are said to balance each other, causing the rider to remain at rest. If the seat is suddenly pulled out from under the rider, then he experiences an unbalanced force. There is no longer an upward seat force to balance the downward pull of gravity, so he accelerates uniformly to the ground, until the carriage decelerates. It is at this point where a force is applied to slow the carriage down bringing it to a controlled stop.The detonator can give its passengers the sensation of free-fall. It consists of three distinct parts: ascending to the top, momentary suspension, and then the quick downward plunge.Ascending to the topIn the first part of the ride, force applied to the car lifts it to the top of the tower. The amount of force depends on the mass of the car and the passengers within the car. Motors create this upward force. There are built-in safety allowances for variables concerning the mass of the riders. F=ma, F=2580x-9.81, F= 25309.8N. This may not be a very accurate result as the mass of the carriage is just an estimate and not a true value. Whilst the carriage is gaining height it is also gaining gravitational energy. The carriage also contains little kinetic energy on its journey.Momentary suspensionWhilst the car is stationary at the top of the tower the gravitational potential energy is at its greatest. Gravitational potential energy is the energy possessed by the carriage because of its height above the ground. The amount of GPE depends upon its mass and its height. I have worked the GPE with the following formulae:Gain in gravitational potential energy = mass x gravity x height.2580(kg) x 9.81(ms-1) x 31.08(m)= 786628NThe value for the GPE may be inacc urate as I estimated the height and this might not be the exact value. Also the mass of the carriage it an estimate and is not identical for every ride, so it varies for every ride.With the GPE I am now able to calculate the minimum power used by the motor to lift the carriage. I will use the formula: power=Energy Transferred/Time.P=786628(N)/17.82(s)P = 44143 wattsThis value may be inaccurate as the GPE I calculated is not an accurate value, also the time may be inaccurate as I used a stopwatch and inaccuracy could have occurred. This is the minimum power used, as the motor is not 100% efficient due to friction, increase/decrease in mass due to passenger mass, air resistance, also loss of power due to heat e.t.c.Newtons third law of motion states that; To every action there is an equal and opposite reaction. A 6okg man would experience a 0N resultant force acting on his seat whilst at rest, and a 589N reaction force acting on his seat. F=ma, F=609.81=589N.Quick downward plungeFrom the top of the tower the car is swiftly accelerated towards the ground under the influence of the earths gravitational field only, as I previously calculated. It is at this point, which the car gains kinetic energy and looses potential energy. A unique magnetic braking system helps bring the ride to a controlled stop. The faster the carriage moves, the larger resistive forces become.F=maF=25809.81=25309.8NWe measure the energy an object has by the work it can do. The work is done when the carriage is moved by the force of gravity. I will now calculate the work done:work done = force x displacement in direction of forcewd=25310x27wd= 683370j this is not very accurate as I did not consider air resistance or friction. Also the force involves an estimate of the mass of the carriage, which is not identical in all the rides.Kinetic energyThe kinetic energy of the carriage is the energy possessed because of its motion. The kinetic energy is greatest when it is at a minimum height. I have w orked out the kinetic energy possessed by the carriage whilst in free-fall.Loss of Gravitational Potential Energy = Gain in kinetic EnergyMgh = 1/2mv2gh = 1/2 v29.81 x 31.08 = 1/2 v2304.8 = 1/2 v2609 = vv = 25ms-1The main limitation in this calculation is the fact that the height of the ride is an estimate, which may be inaccurate. Also I did not consider the air resistance or friction of the carriage and tower, which would slow the carriage down. In most cases this is small enough to be neglected.I will now use the constant acceleration formulas to calculate the final velocity just after the free-fall part of the ride, just before the deceleration.A= -9.8ms-2S= 27metersT= 2.32sU= 0ms-1V= ?I will now calculate the rate of deceleration as the carriage comes to a stop. I will use the constant acceleration formulas. Displacement is 4.08 meters as I estimated (page 1), the time for the carriage to stop during deceleration is 2.32 seconds as I also recorded; the initial velocity is 23.3m s-1 as I calculated above.A=?S= 4.08mT= 1.7sU= 23.3ms-1V= 0V2 = u2 + 2asv2_u 2 = a2sa = 02 23.3224.08a=66.5ms-2=6.8gsI looked up onto the Internet and found out that the carriage is changing its speed at a rate of 5gs. My calculation was 6.8gs, (6.8 5 =) I was just 1.8gs out. There are many factors, which could have caused this inaccuracy. Firstly the displacement of the deceleration is an estimate, I measured the distance that the carriage travels whilst decelerating the same way I measured the height, by using similar triangles (see page 1). This was an inaccurate measurement as I latter found out on the Internet the displacement to be 5.0 meters, I was 0.92 meters out. This affected my calculation significantly. Secondly the time was such a small measurement that it was really hard for me to get the exact time whilst the carriage is decelerating as I used a manually operated digital stop watch and my reactions were not fast enough. Also I did not take into account air resistanc e or friction of the carriage, which would slow the carriage down. This is usually a small amount as the mass of the carriage is high but would affect my result slightly.WeightlessnessThe detonator produces a sensation of weightlessness. These sensations result when riders no longer feel an external force acting upon their bodies. At the top of the tower of a free-fall ride, a 60kg rider would feel 589N of force from the seat pushing as an external force upon their body. The rider feels their normal weight. Yet as, she falls from the tower, the seat has fallen from under her. She no longer feels the external force of the seat and subsequently has a brief sensation of weightlessness, in this ride 2.32 seconds of weightlessness. The rider has not lost any weight, but she feels as though she has because of the absence of the seat force.Discussion of future developmentsIt is hard to find any future developments, which would improve the ride in any way because top physics have been used to design this ride. Maybe you could increase the duration of the free fall part of the ride, making a longer sensation of weightlessness. Also increasing the height of the ride would increase the gravitational potential energy and as the carriage descends it will loose more kinetic energy therefore going faster. This too would increase the sensation if weightlessness.ImprovementsI think that this investigation was overall very successful. I estimated the height of the detonator to be 31.08meters high. I later researched on the Internet and found the actual height to be 30.48. My estimate was only 0.6 meters out and was a very pleasing result. To improve this investigation I would spend a bit more time in the theme park to gather and check through the calculations and to make sure they are accurate.

Advantage and Disadvantage of Living Abroad

The first advantage is easy to learn another language. This means if you are living abroad, you can learn another language. For example, your original language is Chinese, but now you living in America, you can learn English and speak it well. In addition, the second advantage is can know different culture. This means you can learn lots of knowledge and custom in that country. The final advantage is can make friend with people from different country. This means you can be happy with new friends. For instance, I study in Malaysia; I have friends from Japan, Korea, and Malaysia. Aside for the advantage, there are some disadvantages of living abroad. Firstly, you may not easily find a helper to help you if you are having a problem. Moreover, you will waste a lot of money on transportation. For example, take cab can cost you more than driving your own car. You need adapt to your new environment is also a disadvantage at living abroad. For example, you need to try to eat those indigenous foods though you don’t like it. At the end, living abroad also has many disadvantages. To sum up living abroad can be easy to learn another language, know different culture and make friends with people from different country. But also need to conquer those issue such as different environment, transportation and become more independent. So living abroad have many advantages and disadvantages. Advantage and Disadvantage of Living Abroad The first advantage is easy to learn another language. This means if you are living abroad, you can learn another language. For example, your original language is Chinese, but now you living in America, you can learn English and speak it well. In addition, the second advantage is can know different culture. This means you can learn lots of knowledge and custom in that country. The final advantage is can make friend with people from different country. This means you can be happy with new friends. For instance, I study in Malaysia; I have friends from Japan, Korea, and Malaysia. Aside for the advantage, there are some disadvantages of living abroad. Firstly, you may not easily find a helper to help you if you are having a problem. Moreover, you will waste a lot of money on transportation. For example, take cab can cost you more than driving your own car. You need adapt to your new environment is also a disadvantage at living abroad. For example, you need to try to eat those indigenous foods though you don’t like it. At the end, living abroad also has many disadvantages. To sum up living abroad can be easy to learn another language, know different culture and make friends with people from different country. But also need to conquer those issue such as different environment, transportation and become more independent. So living abroad have many advantages and disadvantages.

Trainspotting by Danny Boyle, 1996 Essay Example | Topics and Well Written Essays - 500 words

Trainspotting by Danny Boyle, 1996 - Essay Example This paper will discuss Boyle’s use of parallel editing. According to visual arts and film studies, parallel editing is a technique whereby two or more scenes happen simultaneously, but in different locations co-currently (Smith 6). In some cases, this technique is also known as cross-cutting. In most cases, when the scenes are simultaneous, they culminate in a single area whereby the parties are involved in a confrontation. Cross or parallel editing is used to create suspense hence, adding interest and excitement to a film scene. In this case, Masahiro Hirakubo was responsible for editing this film. Boyle employed the parallel editing technique in several scenes, in the film. Trainspotting the film captures the insolent and amoral intelligence of Welsh as portrayed in the cult novel by Irvine Welsh. The beginning of the film contains severe editing hence; the audience notices that the film significantly affected Britain and it did not dent America. The most probable reason why the movie did not affect America was that it was too apparent for those conservatives. The scenes in the film clearly assert that Trainspotting is the most liberal film that is connected to drug-related issues. Boyle juggles parallel character strands and juxtaposes several images (Smith 23). The film centres on the youthful disaffection with the verve of an exemplary pop culture. According to the events presented in Trainspotting, Boyle developed the technique of using cross editing to provoke suspense. In the introductory section, McGregor and Bremner were running down Princes Street after they were being pursued by security guards. However, after being sober from the induced state, McGregor decides to quit heroin (Smith 34). Later on, he decides to buy opium rectal suppositories and decides to undergo withdrawal in a small hotel. However, when he is close to his friends in a sober state he feels like an outcast. He later goes to the bar and has sex with a woman called Diane (Macdonald) who later refuses to let him sleep in his house.     

Coping with racism as a latino in the US Essay Example | Topics and Well Written Essays - 1750 words

Coping with racism as a latino in the US - Essay Example From the very first day the world was created, discrimination sprout its root as variety came to being. In the human world, people have been discriminated in terms of races, religion, color plus other specific details. Every day as we carry our daily activities, discrimination is in the face of everyone with mean, what matters is, what kind is it. In the American society, cultures and races which were not initially part of the American, especially immigrants, commonly face discrimination. Every year, approximately 20,000 cases concerning racing discrimination are reported according to the National discrimination council of the United States of America. The Latinos and blacks are common people discriminated in the United States. Discrimination in general is not a good thing among the human beings since all human s are humans and not special from one another. Since Latinos are among one of the races discriminated in the United States, different reactions have been expressed by the community in term of how they are treated. Innocent people yearly usually come from the Latino speaking continents in search of better pay in the United States, only to realize there has been pre-existing discrimination towards their community. From the psychological point of view, one would argue that the discrimination might not be only racial in character, but something deeper, and more pertaining scramble for good jobs. The Americans think that the Latinos would take most of their jobs and displace them in senior posts (Chavez 2011). It is always normal for human beings to feel jealous for development of other people, but when they express it physically, and then it will be counted as discrimination. As like other American of color these very hardworking Latinos are subjected to widespread and intense hostility, exploitation and discrimination. They are often cheated out of their income and denied basic needs and public

Texting While Driving Essay Example for Free

Texting While Driving Essay Texting while driving is one of the most common causes of accidents on roads. This is because texting while driving results in physical, visual and cognitive distraction. It greatly increases the amount of time a driver spends not looking at the road. It is a very serious distraction that can cost you your life or the lives of other people. According to recent research by Queensland’s RACQ, using a mobile phone in general can relay reaction time as much as having a blood alcohol content of 0. 08% which is well over the legal limit of 0.05% in Australia. It reduces your reaction time by 35%, even when using hands-free, so texting is obviously going to be even worse because you are effectively driving blind for however long you look at your phone. In fact, every second you spend texting, you double your chances of being in a crash, so why take the chance? If you are ever driving a car and are about to send a text message or use your phone, think about how important it really is. Is it really worth risking your life to tell someone â€Å"lunch was nice† or â€Å"I’ll be home soon†? Is it worth leaving a child fatherless and asking questions like â€Å"Mum, who will look after me if you go to heaven like dad?† as was the case for 5 year-old Harry Stortz after his Dad Jason was killed by an under-age, unlicensed texting driver? Harry will never get to see his Dad again just so someone could make arrangements to pick a girl up and go to his mate’s house. This is just one horrible example of the vast number of deaths caused by texting while driving. We are all disgusted by drink driving, and for good reason, and using a mobile while driving has been proven in many studies to be just as bad, if not worse. Despite this, around 40% of drivers between 18-24 routinely admit to sending or reading texts while driving. This shows that there is an urgent need for greater fines and punishments for drivers who use their mobiles while driving. Texting while driving is one of the most common causes of accidents on roads. This is because texting while driving results in physical, visual and cognitive distraction. It greatly increases the amount of time a driver  spends not looking at the road. It is a very serious distraction that can cost you your life or the lives of other people. According to recent research by Queensland’s RACQ, using a mobile phone in general can relay reaction time as much as having a blood alcohol content of 0.08% which is well over the legal limit of 0.05% in Australia. It reduces your reaction time by 35%, even when using hands-free, so texting is obviously going to be even worse because you are effectively driving blind for however long you look at your phone. In fact, every second you spend texting, you double your chances of being in a crash, so why take the chance? If you are ever driving a car and are about to send a text message or use your phone, think about how important it really is. Is it really worth risking your life to tell someone â€Å"lunch was nice† or â€Å"I’ll be home soon†? Is it worth leaving a child fatherless and asking questions like â€Å"Mum, who will look after me if you go to heaven like dad?† as was the case for 5 year-old Harry Stortz after his Dad Jason was killed by an under-age, unlicensed texting driver? Harry will never get to see his Dad again just so someone could make arrangements to pick a girl up and go to his mate’s house. This is just one horrible example of the vast number of deaths caused by texting while driving. We are all disgusted by drink driving, and for good reason, and using a mobile while driving has been proven in many studies to be just as bad, if not worse. Despite this, around 40% of drivers between 18-24 routinely admit to sending or reading texts while driving. This shows that there is an urgent need for greater fines and punishments for drivers who use their mobiles while driving. Texting while driving is one of the most common causes of accidents on roads. This is because texting while driving results in physical, visual and cognitive distraction. It greatly increases the amount of time a driver spends not looking at the road. It is a very serious distraction that can cost you your life or the lives of other people. According to recent research by Queensland’s RACQ, using a mobile phone in general can relay reaction time as much as having a blood alcohol content of  0.08% which is well over the legal limit of 0.05% in Australia. It reduces your reaction time by 35%, even when using hands-free, so texting is obviously going to be even worse because you are effectively driving blind for however long you look at your phone. In fact, every second you spend texting, you double your chances of being in a crash, so why take the chance? If you are ever driving a car and are about to send a text message or use your phone, think about how important it really is. Is it really worth risking your life to tell someone â€Å"lunch was nice† or â€Å"I’ll be home soon†? Is it worth leaving a child fatherless and asking questions like â€Å"Mum, who will look after me if you go to heaven like dad?† as was the case for 5 year-old Harry Stortz after his Dad Jason was killed by an under-age, unlicensed texting driver? Harry will never get to see his Dad again just so someone could make arrangements to pick a girl up and go to his mate’s house. This is just one horrible example of the vast number of deaths caused by texting while driving. We are all disgusted by drink driving, and for good reason, and using a mobile while driving has been proven in many studies to be just as bad, if not worse. Despite this, around 40% of drivers between 18-24 routinely admit to sending or reading texts while driving. This shows that there is an urgent need for greater fines and punishments for drivers who use their mobiles while driving. Texting while driving is one of the most common causes of accidents on roads. This is because texting while driving results in physical, visual and cognitive distraction. It greatly increases the amount of time a driver spends not looking at the road. It is a very serious distraction that can cost you your life or the lives of other people. According to recent research by Queensland’s RACQ, using a mobile phone in general can relay reaction time as much as having a blood alcohol content of 0.08% which is well over the legal limit of 0.05% in Australia. It reduces your reaction time by 35%, even when using hands-free, so texting is obviously going to be even worse because you are effectively driving blind for however long you look at your phone. In fact, every second you spend texting, you double your chances of being in a crash, so why take the chance? If you are ever driving a car and are about to send a text message or use your phone, think about how important it really is. Is it really worth risking your life to tell someone â€Å"lunch was nice† or â€Å"I’ll be home soon†? Is it worth leaving a child fatherless and asking questions like â€Å"Mum, who will look after me if you go to heaven like dad?† as was the case for 5 year-old Harry Stortz after his Dad Jason was killed by an under-age, unlicensed texting driver? Harry will never get to see his Dad again just so someone could make arrangements to pick a girl up and go to his mate’s house. This is just one horrible example of the vast number of deaths caused by texting while driving. We are all disgusted by drink driving, and for good reason, and using a mobile while driving has been proven in many studies to be just as bad, if not worse. Despite this, around 40% of drivers between 18-24 routinely admit to sending or reading texts while driving. This shows that there is an urgent need for greater fines and punishments for drivers who use their mobiles while driving. Texting while driving is one of the most common causes of accidents on roads. This is because texting while driving results in physical, visual and cognitive distraction. It greatly increases the amount of time a driver spends not looking at the road. It is a very serious distraction that can cost you your life or the lives of other people. According to recent research by Queensland’s RACQ, using a mobile phone in general can relay reaction time as much as having a blood alcohol content of 0.08% which is well over the legal limit of 0.05% in Australia. It reduces your reaction time by 35%, even when using hands-free, so texting is obviously going to be even worse because you are effectively driving blind for however long you look at your phone. In fact, every second you spend texting, you double your chances of being in a crash, so why take the chance? If you are ever driving a car and are about to send a text message or use your phone, think about how important it really is. Is it really worth risking your life to tell someone â€Å"lunch was nice† or â€Å"I’ll be home soon†? Is it worth leaving a child fatherless and asking questions like â€Å"Mum, who  will look after me if you go to heaven like dad?† as was the case for 5 year-old Harry Stortz after his Dad Jason was killed by an under-age, unlicensed texting driver? Harry will never get to see his Dad again just so someone could make arrangements to pick a girl up and go to his mate’s house. This is just one horrible example of the vast number of deaths caused by texting while driving. We are all disgusted by drink driving, and for good reason, and using a mobile while driving has been proven in many studies to be just as bad, if not worse. Despite this, around 40% of drivers between 18-24 routinely admit to sending or reading texts while driving. This shows that there is an urgent need for greater fines and punishments for drivers who use their mobiles while driving.

Assessment Procedures for Professional Hires Essay -- Assessment Proce

Traditionally when a job is advertised the specification has been formulated in line with one of two main concepts, person specification, stating the desired personal characteristics for the role or job description, which details the specifics of the role itself (Casio & Aguinis 2011) but it has been argued that with the rise of psychometric testing and an increasing focus on personality and behaviours, job advertisements need to evolve and incorporate the two (Cook and Cripps 2005). This is done through the process of job analysis. It is crucial to always assess the validity and reliability of job specification information (Harvey, 1991) and hard to downplay its importance as the first point of contact with candidates (Sanchez & Levine 2001). Inaccurate job specifications can be detrimental to organizational effectiveness. Imprecise job information can result in ineffective recruiting and selection practices, increased levels of turnover, low job satisfaction and decreased morale (Morgeson & Campion, 1997). Job analysis can help solidify an organisations structure by clarifying roles and expected behaviours (Casio & Aguinis 2011) and should express the organisations values and behaviours. Successful job analysis is done when it is carried out in unison between a member of the team close to the specific role in question and normally a HR professional (Cook and Cripps 2005). IBM focuses on the competency element of a job specification and thus manages to combine the two approaches. By working in conjunction with the Line Manager who is close to the job role, the HR team member or Recruiter is able to combine in the specification the required practicalities and technical ability as well as the desired personality characteristi... ... Chapman, D. S. and P. Rowe. 2002. â€Å"The Influence of Videoconference Technology and Interview Structure on the Recruiting Function of the Employment Interview: A Field Experiment.† International Journal of Selection and Assessment 10: 185-197. Huffcutt, A. I. and D. J. Woehr. 1999. â€Å"Further Analysis of Employment Interview Validity: A Quantitative Evaluation of Interviewer-Related Structuring Methods.† Journal of Organizational Behavior 20: 549-560. Lievens, F. and A. DePaepe. 2004. â€Å"An Empirical Investigation of Interviewer-Related Factors that Discourage the Use of High Structure in Interviews.† Journal of Organizational Behavior 25: 29-46. Harris, M. M. and R. W. Eder. 1999. â€Å"The State of Employment Interview Practice: Commentary and Extension.† In R. W. Eder and M. M. Harris (Eds.) The Employment Interview Handbook 369-398. Thousand Oaks, CA: Sage.

Public’s perception of police Essay

Do you think the events of September 11, 2001, changed the public’s perception of police? Explain how and why. One believes the public perception has swayed from good to bad over years. For instance, right after the September 11th terrorist attacks on the Twin Towers, the mass loss of civilians, police, as well as fire department personnel gained public sympathy. The Cypress Times explains, â€Å"It remains the deadliest day in U.S. law enforcement history: 72 peace officers killed in the line of duty during the terrorist attacks of September 11, 2001† (Kouri, 2011). The public saw the loss of departments as well as law enforcement officers as heroes for the courage of trying to attempt to save lives and dyeing in action. These individuals were no longer just the people one would try to avoid such as with traffic tickets, these were the individuals society would recognize and come to thank. However, as society is not just one person and includes the minds of many came m uch debate. Along with such massive plot to kill Americans included the matter of who to blame for such attacks. Was the blame toward the lack of airport security and personnel by the airport police, the President of the United States or for the hijackers? Despite the blame game many laws were indeed enforced after the September 11th attacks on United States soil. The League for Revolutionary Party illustrates, Perhaps, many thought, September 11 would mark the beginning of a time when all Americans would stand together in unity and equality†¦. politicians passed new laws like the â€Å"USA Patriot Act† that greatly expanded police powers to spy, arrest and interrogate suspects (League for Revolutionary Party, 2011). Indeed, as many laws aim to help, one believes this would give police officers more leeway to employ powers of police actions. The League for Revolutionary Party further illustrates, â€Å"The pro-cop atmosphere fostered after September 11 gave the police a green light to beat, shoot and kill without fear of punishment or even much attention† (League for Revolutionary Party, 2011). One believes this is somewhat accurate as the attacks are very much imprinted in many individual minds, however, the thankful attitude of Americans shifted fast from the heroes of that day to the heroes that are currently deployed because of the September 11th attacks. No matter what there will always be bad cops; there were some before September 11th and after September 11th. The attacks had an effect but despite the attacks much of the public will believe police racially profile or are the bad guys that just give individuals tickets. Despite opinions, officers are there to serve and protect. References: Kouri, K. (2011, August 20). 72 Police Officers Killed On 9/11 To Be Remembered On 10th Anniversary. Retrieved from http://www.thecypresstimes.com League for Revolutionary Party. (2011, Fall). Police Terror since September 11. Retrieved from http://www.Irp-cofi.org

Boys of Baraka

Many African American families are suffering from the violence and substance abuse in their towns today, as reflected in the film â€Å"Boys of Baraka†. This film focuses on four young African American boys and their families from an inner city in Baltimore; Richard and brother Romash, Devon, and Montrey. As a result of the lack of discipline and an increased violence rate, these African American boys are suffering education-wise. Luckily, the Baraka School in Africa was designed for these children and gave them hope of bettering their lives as they enter high school. Due to the family’s situation dealing with their surrounding city, the five ways a family will thrive and function that we learned in class definitely pertain to â€Å"Boys of Baraka†. The family function, as we learned in class, is how a family operates to care for its members. Each family of the four African American boys that were selected to join the Baraka School in Africa portrayed the function in different ways. The first basic function is providing those basic necessities to survive, such as food, clothing, and shelter. Richard and his brother, Devon, and Montrey’s families are able to provide the best necessities that they can for their boys under some of the families certain financial circumstances. While Montrey has no father because he is in jail, and Devon struggles to deal with his mother’s drug abuse, the boys have everything they need to live a day-to-day lifestyle. Even without a father, and an unstable mother Montrey, Devon, Richard, and Romash’s families encourage the second family function; learning. The main reason the mothers fight so hard for their boys to be accepted into the Baraka School is because they care for their son’s and only want them to succeed academically. The third family function we discussed is self-respect. By devoting themselves to work inorder to help support their families, the mothers of these ten, eleven, twelve, and thirteen year-old boys also try to embodied self-respect into their sons. The boys struggle to develop self-respect but looking back, the Baraka School really helped them to shape their self awareness and forced them to become self critical of their school work. As the fourth family function, nurturing peer relationships is the most common problem amongst the boys in Baltimore. Because the crime rate is so high in the boy’s town, they have become accustomed to seeing people fighting, drinking and smoking, and being arrested. Richard and his brother, Devon, and Montrey all have a good head on their shoulder, but even that can’t be enough to protect them from the crimes that other African American boys eventually grow into. This reason alone is why the mothers of these four boys try so hard to send them away from Baltimore for a good education that will prepare them for high school and later a diploma, then possibly college. The last family function is ensuring stability and harmony, in other words providing predictable routines for their kids. As the mothers try so hardly to structure a perfect lifestyle for their sons, it is visible that it simply can’t be done in the city of Baltimore. While trying to ensure stability and harmony as a single mother, or a mother under the influence it can be hard to do so and as a result, the kids suffer. The Baraka School was designed for this reason and gives the boys a stable routine that will change their lives completely and ultimately prepare them for the real world. The film shows how much Richard and his brother, Devon, and Montrey’s families need the Baraka School to give their children a chance to escape the troubled lives they are in. The issue of family troubles affects the Baraka boys and has a huge impact on their lives educationally and socially. Because most of the boy’s families are struggling with income, poverty definitely affects the four African American boys. A lack of income certainly affects a stable, healthy, and all around good life style for the children. Lacking in these issues will certainly lead to a greater chance of the boys joining the crimes that surround them. While praying that it will not affect their son’s the mothers even admitted that they are bound to join in on the street crimes that occur right outside their doorstep. The harmony within the families that is portrayed in â€Å"Boys of Baraka† cannot necessarily guarantee that the boys will live a crime free life. As I said before, by not providing a complete stable lifestyle the kids might not succeed in school and will lead them to dropping out and joining the crime. Also looking back, the Baraka School really helped to show the boys that they are better than the street life around them and could actually go somewhere in life. It amazes me that even after one year of attending the Baraka School in Africa, the boy’s attitudes about learning changed completely. Even just an attitude change could potentially save these African American boys from joining a lifestyle that has no importance. I was truly touched by the â€Å"Boys of Baraka† film because it gives you a real life example of how poorly some people actually have it. I believe that Richard and his brother, Devon, and Montrey, will succeed in life and make a name for themselves other than among the streets of Baltimore if they really wish to. Even just changing the fate of young boys in the inner cities, like the Baraka School did for Richard and his brother, Devon, and Montrey, could be enough to save them from a lifestyle of regret and unfortunates.

Jews in the Holocaust essays

Jews in the Holocaust essays Between 1873 and 1896, Europe, and the world experienced a period of economic stagnation, often referred to as the Great Depression of the nineteenth century. Anti-Semitism spread throughout this time in Germany. Jews were blamed for whatever may have been wrong, by public officials, and politicians. By the end of the nineteenth century, anti-Semitism had become a widespread sentiment in Europe. Jews seemed to have economic stability, where others struggled, so they were blamed for the sufferings of all. Not everyone hated the Jews, there were many people who were indifferent to what went on in Germany, and still others were against the anti-Jewish cause. These people, in effort and in number, were not enough, to save the Jews from their ill fate in Europe. In the early 1930s the liberal democracy came under attack in Western societies, something which had emancipated the Jews. Anti-Semitism increased greatly in the ten years previous to World War II. In Germany, after Adolf Hitler and the Nazi party had reached power on January 30, 1933, anti-Semitism practically became a government policy. Hitler demanded that his hatred for Jews be reinforced in government action. He claimed that Jewish people were a disease in society that he must rid the world of. He felt that the Jews were powerful, and that it was his job to defeat them, and remove their threat to the world, and his precious Aryan race. Hitler was the force behind the anti-Semitism of the Nazi party, though one could not have had the effect it did, without the other. Hitler was determined to wipe out the Jews, and the Nazi party, helped him pursue that dream. The people of Germany supported these goals in hopes of regaining economic stability and prosperity, and in support of t he anti-Semitic sentiments that had lingered within them for years before Hitlers rise to power. In Nazi Germany, Jewish persecution began by the government supporting the bo...

OOAD Essay Example | Topics and Well Written Essays - 2000 words

OOAD - Essay Example This new booking system will provide facility to computerize the record of the booking of customers into function (event) rooms or bedrooms; and ensures that a room is made available for further bookings as soon as it is vacated. This new system will be implemented to provide the reception more enhanced services. Through this overall customer services will improve that is the main aim in any business. This system will be based on the centralized databases system that will be used to record and manage daily working and management. This system will present a more enhanced working and handling of the overall booking and reservation of the hotel rooms and halls. This system will comprise the client and admin levels. The client system will run at reception to provide the receptionist help regarding the dealing and customer management. This level of the system will allow to reserve, relies, pay and check the overall room’s status and activities. The level will also generate customer slip for the payment. The admin level of the system will be handled by the administration. This level will be used to access the daily working, room’s status and profit. Here management will also be able to draw the daily monthly or any periodic reports. In this section I will present the main use cases of this system. This way of system design will provide a better overview of the system activates and responses. I have used smart draw for the drawing of this uses cases diagram. This section is about the analysis of the use-case model that drives other models in object-oriented analysis and design. The object-oriented technique with Unified Modeling Language is initiated by the system stakeholders as well as the working actions those are required. To demonstrate the on the whole behavior we build up use case model. This way of system modeling presents the indispensable circumstances in which user uses and interacts with the system and generate important

User generated content Dissertation Example | Topics and Well Written Essays - 2750 words

User generated content - Dissertation Example After going through the different phases of research that we have been doing during the course of our research work assessing the impact of user generated content can have upon the development and prosperity of the hospitality industry and tourism sector of Dominican Republic, we have entered the conclusive phases of our discussion in which we will subsequently be dealing and highlighting ways through the application of which the tourism as well as the affiliated and symbiotically related hospitality segment and sector of the country can also undergo progress.We will primarily be dealing with the recommendations through the help, application and implementation of which these objectives can be achieved. In addition to this we will also incorporate the conclusive phase of our discussion in this very segment of our research. However before we move towards the proposed recommendations that we can possibly make regarding the tourism sector of Dominican Republic it is also very important a nd essential for us to once again have a thorough look to the different dynamics of this sector and at the same time also realize the necessity and need which is important for the development of this sector for this particular country. In this context it is first and foremost important to understand the multitude effects that the sector of tourism has played in maintaining the smoothness and consistency of the economic engine of the country. For the fulfillment of this purpose it is also important to understand such facts with the help of graphical representation which will concurrently provide us with an overview of the contemporary state of tourism in Dominican Republic and the ways in which it can progress in years to come. Graph 1 can be seen at the end of this document The graph that has been provided above shows the change in trends that have taken over more than a decade in different Caribbean countries. Even though different countries with their specific estimates have not b een mentioned in the graph itself, however it is worth mentioning here that the revenue generated by the tourism sector of Dominican Republic constitutes over 20% of the total GDP of the country. With this percentage Dominican Republic occupies fourth position in the entire Caribbean region among other countries that have a large chunk of their GDP attributed and obtained by means of the tourism services that they are able to provide to visitors coming to these places. With the help of the graph and the overview that has been provided it is comprehensibly demonstrated that the tourism sector of Dominican Republic has pivotal importance as far as the conduction of development and progress projects in the country are concerned as it is one of the key sources through the help of which foreign direct investment can easily influx the country. However despite of the fact that the tourism sector can play an effective role in the economic development of the country the country still lags be hind in terms of the revenue that it generates as compared to other countries such as Barbados, Bahamas and Dominica. (Harvey, 2006) It is important that the factors that contribute in the halting of the progress of this industry are also carefully assessed. In addition to this it is also important to mention that the tourism industry of Dominican Republic has a cumulative assortment of over $4 billion annually and along with this the sector has also proved to be the safest and most secure employment ground for the people of the country who are either directly or indirectly related to the industry. Some of the most fundamental problems that the country encounters in the progress of its tourism sector are the lack of proper infrastructure that it needs to integrate to actually provide quality and lavish lifestyle to people who come to this place. (Pariser, 1994) Even though with the passage of time many new hotels and resorts have been built keeping in mind