The Role of Science in Crime Reduction

Biological science, specifically forensic pathology, has become an important tool in civil and criminal investigations due to its ability to determine the cause of death of an individual (Naples et al. 2010, 162). It helps to determine how a person died, what were the exact causes and to determine whether foul play was involved in the death (Naples et al. 2010, 162).Advertising We will write a custom essay sample on The Role of Science in Crime Reduction specifically for you for only $16.05 $11/page Learn More It is a branch of science that has actually gained popularity within recent years as a result of the hit television series â€Å"CSI: Crime Scene Investigations† which has glamorized the job of a forensic pathologist and has created the general notion that most crimes can be resolved by forensic pathologists should the proper evidence be obtained. Modern technology along with constantly innovating techniques in forensic investigation have re sulted in a plethora of concepts, methods and frameworks from which a forensic pathologist can draw on in order to solve a case. The role of forensic investigators goes beyond merely analyzing and solving a case but rather acts as a method of crime reduction through which the guilty are put behind bars to safeguard the rest of society. DNA Analysis Perpetrators of violent crimes have a tendency for leaving DNA evidence behind resulting in their subsequent capture once the trace amounts of DNA are examined. Murders, rapists and other violent criminals always seem to believe that there would be no possible method for investigators to trace them if they do not leave anything behind at the crime scene. What they fail to take into account is the fact that there is no such thing as the perfect crime and that one way or another some form of evidence is left behind. This can come in the form of skin scrappings located under the victims fingernails, bite marks on the suspects body, pieces of hair, dried semen or even eyelashes can be used as possible samples for DNA analysis in order to catch criminals. The U.S. alone has one of the most extensive criminal DNA databases in the world where all it would take is the click of a button to compare a DNA sample today with one taken years ago when a person was arrested (Gabriel et al. 2010, 396). This has resulted in drastic drop in the amount of violent criminals that have been allowed to go free due to lack of evidence which as a result keeps the society safe. Fingerprint Analysis The human fingerprint is a unique identifying mark that can connect an individual to a scene of a crime resulting in their subsequent arrest should it be proven that they were the perpetrators of the act itself. Most criminals seem to be unaware of is the fact that virtually any surface can hold an imprint of a human fingerprint for a certain length of time. This is due to the fact that the hands of all individuals secret a combination of oil and s weat that when combined form a thin layer covering the hand.Advertising Looking for essay on criminology? Let's see if we can help you! Get your first paper with 15% OFF Learn More When pressed upon a surface this thin layer is subsequently transferred on the surface itself resulting in fingerprint. Not only have new fingerprint detection methods been invented but the subsequent automation of fingerprint detection systems means that it is now far easier and faster to compare fingerprint records from a crime scene with those from an individual that has been arrested for a violent crime (Dias and Dingeman 2004, 22). Cause of Death Analysis Autopsy techniques have advanced to such a degree that they can determine the time and cause of death and in the case of foul play what particular type of weapon or poison was used to kill a person (Chapter 4 2004, 56). Catching criminals is not always a case of finding DNA evidence or fingerprints, premeditated crimes often involve ca reful planning and subterfuge in order to fool forensic investigators and police detectives alike into believing a crime was committed by someone else other than the perpetrator in their midst. It is up to forensic investigators to examine the cause of death of the victim and compare it to the story given by various suspects at the scene in order to determine who the perpetrator of the crime really is. Reference List Chapter Four. 2005. Examining the Body. Pathology 56. EBSCOhost . Dias, Gary, and Dingeman, Robbie. 2004. Chapter 2 Fingerprints. Honolulu CSI  22. EBSCOhost . Gabriel, Matthew and others. 2010. Beyond the Cold Hit Measuring the Impact of the National DNA Data Bank on Public Safety at the City and County Level. Journal  of Law, Medicine Ethics 38, no. 2: 396-411. Naples, Virginia and others. 2010. A Skeleton Tells Its Own Story ForensicAdvertising We will write a custom essay sample on The Role of Science in Crime Reduction specifically for you for o nly $16.05 $11/page Learn More Analyses of Skeletal Elements for the Science Classroom Laboratory. American  Biology Teacher 72, no. 3: 162-171. This essay on The Role of Science in Crime Reduction was written and submitted by user Keyon U. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Planning functions

Planning functions Planning is a decision making process. It helps one to decide on what to do and how to do it. There are six steps to follow when planning. First and foremost, one has to analyze the situation. Two constraints are very important at this stage and they are time and resources. Gathering of information and interpreting is done at this stage. Advertising We will write a custom essay sample on Planning functions specifically for you for only $16.05 $11/page Learn More Also, a summary of all the relevant information is done. Identification and diagnosing planning assumptions is done. In addition issues and problems are identified. The second step is having alternative goals and plans. Alternative goals that can be implemented later are provided. It also gives plans used to implement the goals. Thirdly, evaluation of goals and plans is done. Advantages and disadvantages on alternative goals and plans are evaluated. Also, the possible effects of the goals and plans are evaluated at this stage. Fourthly, selection of the goals and plans is carried out. The most appropriate and feasible goals and plans are selected. Right judgment is crucial at this stage. In the fifth step, implementation of the designed plans takes place. This helps one to achieve the set goals. To implement a plan, the manager must understand it well. Also, resources to implement the plan must be available. Finally, monitoring and controlling are important. These help one to know whether his/ her plan is succeeding. Continuous monitoring of the actual performance against unit’s goal should be done. Implementation is the most important step in planning. The reason behind this is that implementation of plans helps in achieving the set goals (Darlkir, 7). There are three types of plans that can be used in different organizations. These include, single used plans, standing plan, and contingency plan. Singles of standing plans are policies, a procedure and rules (Ingram, p ara.4). Contingency plans are meant for specific situations. This is incase things don’t move as expected. Contingency planning involves flexibility and adaptation. Also, mastery is needed due to the changing conditions. They include planning for marketing. The reason behind is to get support from the stakeholders. In addition, they allow for understanding from the stakeholders (Ingram, para.5). In our organization we usually use standing plan. The reason behind is that we usually deal with activities that need much time before completion. Also, in our organization we have many different departments where this kind of planning is more applicable. From the above literature, I have been able to learn that planning is one of the key aspects in any organization. Implementation of a plan is one of the most important steps in any planning. Implementation helps in achieving the already set goals. Without the implementation of a plan, the other work done during the planning process will be of no importance. Different plans can be applied in different organizations. The kind of plan to be used depends on the type of activities taking places in an organization. Darlkir, Kimiz. Knowledge management in theory and practice. New York: Technology partner. 2011. Print. Ingram, David. Define single use, contingency standing plans for business. January 26, 2011. April 22, 2011.

Electoral College Essay Example | Topics and Well Written Essays - 1250 words

Electoral College - Essay Example Pelayo was elected by his Visigothic nobles before becoming king of Asturias and Pepin the Sort was also elected by his Frankish nobles so as to become the first Carolingian king (Wedgewood 29-36). In the Holy Roman Empire, the King of the Romans was selected by the college of prince electors from the late Middle Ages until 1792 when the last election took place (Wedgewood 29-36). The Church in the West left electoral power exclusively to the College of Canons of the Cathedral Church. In the case of the Pope, selection is left to the exclusive authority of the College of Cardinals since 1059. Currently, the United States of America is the best illustration of a society that uses the Electoral College System to indirectly elect the president and the vice president (Sabato 20-35). Framers of the Unites States’ Constitution devised the Electoral College as procedure to indirectly elect the president by the people. The Constitutional Convention came up with so various methods of selecting the president which included selection of the president by the Congress; selection of the president by the State Legislature; selection of the president through direct popular vote (Kolodny 45-65). These procedures were rejected for various reasons such as threats of power bargaining and corruption (Longley and Pierce 12-17). Finally, the convention settled for the indirect method of election of the president through the Electoral College and this procedure was stipulated in Article II, Section 1 of the Constitution of the United States (Kolodny 45-65). The article on the Electoral College has undergone several amendments in 1880, 1804 (12th Amendment) and in 1876. The last amendment to the Electoral College was made through the 23rd Amendment which gave the District of Columbia the right to vote for three electors just as the residents of other states

Es179 writing assignment Essay Example | Topics and Well Written Essays - 250 words

Es179 writing assignment - Essay Example People working in engineering jobs without the degree must be classified as engineering workers, not engineers to keep up with the engineering standard. Performing work commonly recognized as â€Å"what engineers do† does not make a professional engineer. The law dictating that an engineer is one practicing engineering jobs should be revised. In fact, people must not initially trust a person working as engineer if they do not have a college degree. Likewise, there are no persons included which should be removed from the list of engineers. Thus, people working as engineers must be classified as engineering workers, never engineers to ensure professionalism. Being a chartered engineer is not the minimum requirement to be called professional engineer. In some countries, the computer engineers and the industrial engineers do not have a chartered board exam requirement. Clearly, having other accomplishments like passing the chartered engineering board exams and pursuing professional engineering development are not the minimum requirements needed to be called an engineer. There are no people included which should be removed from the list of engineers. Consequently, people working engineering jobs must be called engineering workers, to avoid

Vascular Access in Continous Renal Replacement therapy Essay

Vascular Access in Continous Renal Replacement therapy - Essay Example 24). CRRT uses diffusion (haemodialysis), convection (haemofiltration) or combines these two methods (heamodiafiltration) in order to achieve solute removal from the blood. Small molecular weight substances like potassium, urea and creatinine are efficiently removed through haemodialysis (Kellum, Mehta, Angus, Palevsky and Ronco, 2002, p.1858). For larger solute molecules, heamofiltration is the most efficient method of their removal in comparison with dialysis. In haemofiltration, filtration of plasma through the semi-permeable membrane is caused by hydrostatic pressure. In addition, solutes cross the membrane alongside the plasma which results in convective solute transport flowing in the same direction as water (Medve, Preda and Gondos, 2010, p. 104). Therefore, haemofiltration needs the use of replacement fluid to avert excessive removal of fluid, electrolyte depletion as well as iatrogenic acidosis. Since the plasma solute concentration is the same as that of the removed filtrat e, concentration of the solutes in the blood plasma remaining need to be diluted using substitution fluid. The use of combined convective and diffusive clearance as well as haemofiltration is effective for removal of large and small molecular weight solutes (Joannidis and Oudemans-van Straaten, 2007, p. 219). Modalities The several modalities of CRRT available are continuous veno-venous haemodiafiltration (CVVHDF), continuous veno-venous haemofiltration (CVVH) and continuous veno-venous haemofiltration (CVVHD). In terms of solute clearance rate, CRRT is lower in comparison with IHD (Intermittent haemodialysis treatments). However, balance clearance within the 24 hr period that CRRT is undertaken is much higher. Moreover, fluid elimination during CRRT is much slower and requires continuous use of anticoagulants which risks bleeding (Uchino, Bellomo, Morimatsu, Morgera, et al. 2007, p. 1567). Continuous veno-venous haemodiafiltration (CVVHDF) There is counter-flow of blood and dialysi s solution within the dialysis filter Blood flows at a speed of between 100 and 200ml/min Dialysis solution speed is between 1 and 2 l/h Optimisation of the ultrafiltration speed is dictated by convective transport of dissolved substances and volume loss. The removal of solutes is done simultaneously by both diffusion and convection Substitution fluid is used to replace lost fluid Continuous veno-venous haemofiltration (CVVH) Removal of solutes occurs via convective transport Ultrafiltrate which is produced must be replaced using a substitution solution Removal of ultrafiltrate may cause patient’s volume loss Continuous veno-venous haemofiltration (CVVHD) There is counter-flow of blood and dialysis solution within the dialysis filter Blood flows at a speed of between 100 and 200ml/min Dialysis solution speed is between 1 and 2 l/h The administration of fluid is not routine Solute removal occurs through diffusion Principles and Indications Membrane characteristics must be cons idered when choosing treatment modalities of CRRT. These characteristics include; biocompatibility, solute removal and water permeability (Fall and Szerlip, 2010, p. 583). In general, efficiency of small molecules in CRRT is largely depended on

Economic Impact of Climate Change on Water Resources

Economic Impact of Climate Change on Water Resources Economic Impacts of Climate Change in the Mountain Regions: Water as a source of peace and economic development Abstract When we think of the mountains we usually think of the mountains themselves and not the impact they make on the area below them. The purpose of this research is to review impacts of climate change at a global scale on the mountains and the mountains’ water supply. This paper also reviews major environmental/ecological, social, and economic issues facing us. Tourism industry will suffer because of it. The study concludes that climate change will bring in instability on global scale with possible water conflicts and decreasing economic developments especially in developing countries. This will bring increased people migration into the areas not much effected by water supply issues and will increase social and political instability in those areas. Keywords:relative water yield (RWY), â€Å"water towers†, â€Å"river piracy† Introduction It is estimated that out of 7.382 billion people in the world today (U.S. Census, 2017), about 11% of the world’s population live in the mountain regions (Kohler et al, 2014). The mountains provide water for billions of people. The mountains are â€Å"water towers† of the world. They cover 25% of the world’s land surface and more than 50% the world’s population depends on water that originates in the mountains (Viviroli et all, 2006). By comparison in 2015 we used less than 1% of fresh water. That water is made in more than 18,000 desalination plants. The water desalination production increased by 67% from 2008 (Thomas Sumner et all, 2016). The water from mountains is used for drinking, domestic use, irrigation, hydropower, transportation, tourism purposes and many other industries. Climate change in the mountains is bringing in an unpredictable winters. Winters with minimal snow or snow coverage which lasts for only a short time are the winters of today (J. Dawson et all, 2009). Climate change in the mountains will bring increased hazards and casualties, such as: fires, floods, avalanches, landslides, desertification, and mountain erosion. It will change the rainfall and monsoon patterns which will bring devastation and economic uncertainty to many regions. Climate change will increase people’s migration and will bring diseases not known in the area. The possibility of conflicts and even war might also increase. Water as a source of peace and economic development Mountains as water source around the world Climate change might have devastated outcome especially for semi-arid and arid areas which will be affected by less water coming from the mountains. The mountains help to distribute up 95% of water to these areas. In humid areas mountains’ distribution of water is up to 60%. (Swiss Agency et all, 1998). Figure 1 below shows mountain water run off around the world. Figure 1: Disproportionality of mountain runoff formation relative to average lowland runoff (RWY), mapped cell by cell for mountainous areas. Disproportionality in favor of runoff is given when RWY is greater than 1, its importance being marked for RWY > 2 and essential for RWY > 5 (Viviroli et al, 2007). As can be seen in Figure 1, the most important water mountain sources are regions in the Middle East, South and central Africa, Asia, Rocky Mountains in the U.S. and the Andes. In the Figure 1, we can see that relative water runoff is very important for the lower areas in the areas of where RWY is higher than 1 2 and essential for RWY > 5 (Viviroli et al, 2007). As can be seen in Figure 1, the most important water mountain sources are regions in the Middle East, South and central Africa, Asia, Rocky Mountains in the U.S. and the Andes. In the Figure 1, we can see that relative water runoff is very important for the lower areas in the areas of where RWY is higher than 1

Enron and its Shortcomings Essay -- essays research papers

Enron’s overall business practices are not ethical. One business practice of Enron that I think poses an ethical issue is their attitude towards its employees. They create a highly competitive and a result oriented business atmosphere. They used a system where they would rank employees every half a year and fire employees who ranked on the bottom 1/5 of the scores. This kind of attitude where only results matter and if you don’t produce anything good you will get fired will only hurt the company. This promotes unethical behavior and getting what needs to be done to get good results no matter what and if you do well you will receive big bonuses. This approach towards Enron’s employees did not have very good utilitarian reasoning. This doesn’t help employees morale and psychological satisfaction. The cost of this kind of approach was very low because in fact you will weed out the slackers but the results Enron had where employees afraid to question unethica l situations in Enron in fear of their jobs.   Ã‚  Ã‚  Ã‚  Ã‚  Another section of Enron’s business practice that is definitely not ethical is their accounting methods. In a technical aspect their accounting methods were fine, but this was only because of a loophole. Andrew S. Fastow was described as a financial whiz kid because of these loopholes that he knew how to take advantage of. Some of these things that he, and Enron, were able to take advantage of were the setups of special purpose entities. They would setup these special purpose entities and have either their friends or employees to invest in these special purpose entities so that Enron my say that their debts and liabilities are actually under the special purpose entities and not of Enron. This made it look like Enron didn’t have as much debt as it should have had. A second practice in the accounting methods that were not ethical was their manipulation of their revenue. What they did was to make either their earnings more or inflating their stock. They would make sure that any potential deals that could make money in the future they wrote down in the books in the present, which is not a good accounting practice. Also they used sham swaps with other companies that would buy products and services with each other to make it look like they where making sales and money, when in fact that all they did was trade some assets and wrote a sale.... ...d of the day. Enron’s legal responsibility was low while their economic responsibility was relatively high. They wanted to make money but they where doing it the illegal way, and because of this their social responsibility was just terrible. In the end of the company no matter what was done all the illegal actions were catching up to them and this showed to the world how irresponsible Enron was. They were not socially responsible to any of their stakeholder. The stocks fell and their company went into bankruptcy, many people lost money. Employees lost their jobs and life earnings, and because Enron was a huge company the end of Enron had a ripple affect. All other companies that worked with Enron lost business and they might have had to cut back on costs. Customers lost because they didn’t have the services of Enron, a company that deals with electricity, water, broadband, pulp, paper, and lumber. Creditors had to write off loads of bad debt because Enron would not be able to pay it back. Companies should take a look at Enron’s approach to business and learn that you need to responsibly balance all three responsibilities of business to have a successful business in today’s world.

Differentiating Between Market Structures Essay

Kudler Fine Foods is the brain child of Kathy Kudler. She envisioned a one stop gourmet food store and has grown to three locations to date. She continues to maintain direct control over large bulk purchase order items, stringent customer service policies, and hiring. This paper discusses how the organization competes in the marketplace and the strengths and weaknesses of the company according to the marketing surveys their customers completed. The following also discusses which market structure best applies to the organization and how that structure positively and negatively affects the firm, how the effectiveness of the competitive strategies in the market structure affect the organization’s long-term profitability, and what competitive strategy recommendations may be made. How Kudler Competes Kudler Foods competes on a differentiation strategy. While the advertising is similar to the average grocery stores in the area, the advertising is not built on a â€Å"loss leader† criteria. Kudler Foods is one of only a few competitors in Orange County that offers a complete gourmet shopping opportunity. The company considered the greatest competition is the Cardiff Seaside Market and is in direct competition to the Encinitas and Del Mar locations. If left unchecked and depending on how effective the new managers are at strategic combinations, the competing store could negatively impact Kudler Foods market share. Something like this could decimate Kudler Foods’ customer base. Active assessment of strategy strengths and weaknesses is necessary to mitigate the challenges of this possibility. Strengths and Weaknesses Kudler Fine Foods marketing surveys were a clear indication of their strengths and weaknesses. Customers were happy with the displays and lay-out of the store. Customers were happy with the merchandise they purchased, even though they were not happy with the value they received for their money. Customers were practically split down the middle about how they felt about the customer service they received. That sentiment is not a reflection on how knowledgeable the customer service person was since customers overwhelmingly voted positively when asked that question. Overall, the customers felt good about the organization, how the company is branding itself as a premier gourmet market, the quality of the products and the knowledge level of the service representative. Best Market Structure The best market structure for Kudler Foods is oligopoly. Oligopoly, as defined by Colander (2010), â€Å"A market structure in which there are only a few firms and firms explicitly take other firms’ likely response into account; there are often significant barriers to entry.† Oligopoly requires strategic thinking. A real life company that has the same market structure as Kudler Foods is Whole Foods Market. Whole Foods Market carries specialty, gourmet food items, meats, wines, cheeses, and bulk food stuffs. Whole Foods Market also offers food and wine tastings, and attracts a wealthier clientele who fancy themselves as â€Å"gourmet foodies.† A large portion of their inventory is organically produced. Their customer service levels are a point of great pride as they know it is not just the food but the service that keep customers coming back. (Whole Foods Market, 2013) There are however, positive and negative effects of this market structure. Positive and Negative Effects A negative effect of oligopoly is that it is largely inefficient – economically and in productivity. What this means is that oligopolies do not produce in the most inexpensive manner nor do they produce the right amount of products according to demand. A positive effect of this market structure is the overall profits. These profits, for the growth purposes of Kudler Foods, could be used for technological advances so they may offer improved products, costs, prices, and allow them to stay ahead of the competition now and in the future to maintain long term profitability. Recommendations A firm recommendation is further train employees to enrich operations and increase customer service. Employees are certainly knowledgeable, as per the marketing survey results, but could use some additional training in increasing customer service skills. This could be accomplished by hiring an expert in the field to come in and teach service skills to the employees. To ensure the skills are used, Kudler Foods could tie a small part of the employee’s compensation to good reports from customers. In addition, Kathy Kudler is making plans to introduce new e-commerce capabilities as well as a catering link on the new website slated for launch in June 2004. These steps will add automation to inventory ordering and reach potential customers outside of the geographical area they currently service (â€Å"Kudler Fine Foods | Administration: Strategic Plan 2003†, 2013). The use of e-commerce will showcase strengths and perhaps give sustained competitive advantage. This new automation will also allow cash flows to go to the geographical expansion Mrs. Kudler wishes to achieve rather than operations functions. Conclusion The main point of this paper was to offer a market analysis for Kudler Foods and offer recommendations based on that analysis. Commitment to strategic plan, both in formulation and implementation are vital. â€Å"As with any plan, simply formulating a good strategy is not enough. Managers also must ensure that the new strategies are implemented effectively and efficiently (Bateman & Snell, p. 150, 2011).† Given the current circumstances, Kudler Foods has an excellent opportunity to maintain the positive cash flow it has been earning. If Kudler Foods will accept that strategy formulation, implementation, and technological advances are essential to securing future significant returns, Kudler Foods will ensure continued success by creating a connection between increased customer service, an internet presence, automated ordering, customer buying habit tracking, and customers’ lives. The sustainable competitive strategic advantage that Kulder Foods wishes to maintain and elo ngate will most certainly be realized. References Colander, D.C. (2010). Economics (8th ed.). Retrieved from The University of Phoenix eBook Collection database. Bateman, T. S., & Snell, S. A. (2011). Management: Leading & Collaborating in a Competitive World (9th ed.). Retrieved from The University of Phoenix eBook Collection database Whole Foods Market, Mission & Values (2013) Retrieved from http://www.wholefoodsmarket.com/mission-values Kudler Fine Foods | Administration: Strategic Plan 2003 (2013). Retrieved from https://ecampus.phoenix.edu/secure/aapd/CIST/VOP/Business/Kudler2/intranet/strategic-plan.asp

World War II in the Historical Context Essays

World War II in the Historical Context Essays World War II in the Historical Context Essay World War II in the Historical Context Essay World War II is considered by many people as the worst global confrontation since time began. The war was started by radical nationalism and individual egos; the very thing Adolf Hitler and the Japanese believed was the root of most problems in the world. The sources in the textbook had similar aggression against westernization. In the first source, Hitlers Mein Kampf detailed a concept of survival of the fittest. The jailed World War I veteran describes a racial war?with his Aryan race as the ominant, prevailing group. His belief that progress could only be made if the dominant people were put into places of power and responsibility coupled with a proposal of fighting to live. Hitlers strong sense of nationalism and self/Germany- entitlement evoked a passionate following which later led him to German leadership. His specific declaration of Jewish people as the main ailment of the world leads to the greatest genocide in history. The Japanese were another instigator of World War II as they too developed an aggressive form of nationalism among their people. In the source, Kokutai No Hongi, the Japanese narrate a loss of morality through westernization. The publishing calls for a return to loyalty and morality; by this, they mean the devotion to a Master (Emperor) and Subjects (people). They also detail a history of valuing warriors. Those very ideologies very likely segued to a violent ostility towards anything and anyone western. In short, People who might find these drastic writings attractive would be anyone who has a strong sense of nationalism?even racial prejudice. It could be long-standing tradition or upbringing that fueled many people who felt their native culture and land have been corroded and invaded by others. The easiest answer is to blame it on someone else, especially if they are physically different.

Ray tracing Essays

Ray tracing Essays Ray tracing Essay Ray tracing Essay The objective of this experiment is to find the length of an object and its focal lengths. I will first try to hypothesize where the length points will be. The given results of my hypothesized diagrams will determine the lengths of the focal points. I will then be able to find out where the object image will be situated by following my ray trace diagrams. I believe that I will be able to find the length of the object image if I can find the two focal length points ( 1/v and 1/u displayed in my ray trace diagrams and the focal graph). To achieve this I have decided that I could not get an accurate hypothesis if I did not know this information, so I will carry out a small practical experiment. We found that if the lens is thin, the focal length is longer, and if it is thicker, the focal length is smaller. The focal length for our lens is 10cm. I have created some ray tracing diagrams to show my predicted lengths using the focal length that I found. I have found the longest distance that I can get a clear image is 100cm, the shortest being 15cm. I then carried out an experiment to prove my hypothesis. I used light boxes to create a light source, but this is not extremely accurate as the light rays diverge and are not parallel. I used a screen and a lens to try to find an image. My results for my experiment were as follows. I had three atempts to make my experiment more accurate. Image lens Lens Screen Image size (cm) 1st/2nd/3rd attempt (cm) 1st/2nd/3rd attempt (mm) 15 33/35/36.5 25/28/29 25 18/18/18.5 9/9/9 40 15/14/15 5/5/4 50 14/13.5/13.5 3/3/3.5 60 13.5/13/13.5 2.5/2.5/2.5 80 12.5/12.5/12.5 1/1/1.5 100 12/12/12.5 1/1/1 I have found the averages of the 3 attempts and have also put these in a table. Image lens Lens Screen Image size (cm) Average(to 2dp, cm) Average (to 1dp, mm) 15 34.80 27.3 25 18.17 9 40 14.67 4.7 50 13.67 3.2 60 13.33 2.5 80 12.50 1.3 100 12.17 1 This data is represented in a graph. It shows that the longer you move the object to the lens away, the less distance between the screen to the lens is needed to get a clear image. The further the object to the lens is the smaller the image size. The only problems that I had with my experiment were the fact that the light rays were not perfectly parallel. This could of lead to the rays moving away from the focal points, and could then move the object image a few millimeters, which could change the results by a lot. The other problem was the materials. These were not of a high quality, and the measuring devices we used were 1 meter rulers, which were not accurate enough to the millimeter. We also did not know what thickness the lenses were, so we could not go into further detail into the changes, which they may have caused. Overall the experiment was a success. It showed basically what my raytracing diagrams, and my hypothesis had shown. It gave a clear, precise trend on how the lengths change. Changing with size it shows the further you pull the object from the lens, the shorter length you have to put the lens from the screen.

Slavery-Response Essay Example | Topics and Well Written Essays - 250 words

Slavery-Response - Essay Example It investigates the European nations that trafficked in slaves. It also emphasizes on brief origin and history of African enslavement. However, the embarkation area map of the West and West Central Africa is unable to provide with a closer insight. Additionally, it seems that the data on most of the African American history has been compiled from few sources i.e. most are from Eltis et al 2001, lacking a well researched recent literature review. The web site incorporates few links in the right side of the page for distant learning. These are well designed according to format of a report with an introduction, discussion pages and links to resources. There is also a well interpreted history of cultural norms and traditions under the heading â€Å"Laws that Bound†. Apart from some minor issues, the website is a great source of information for people interested in exploring their ethnographic and cultural background. The service is doing a good job at maintaining the national pres erves and assisting the general public in visiting such cultural sites keeping the history alive.

Research Paper on literary canon and authors place in that canon

On literary canon and authors place in that canon - Research Paper Example His stories also illustrate the use of science fiction blended with horror and mysterious plots. Poe’s work became great source of inspiration and guidance for the coming writers in the genre of detective fiction and even the detective stories of today use the ideas first introduced in his detective fiction stories (Sova, p221). Poe occupies most prominent space in the detective fiction and even after several decades his work is still great source of inspiration for the writers of detective fiction genre. He paved the ways for ghosts and mysterious murdered in the American literature and illustrate the depiction of different fiction as well as scientific phenomenon in the stories. He introduced some detective characters to solve the mysteries of the stories. Before Poe the use of detective was not very common in the stories and there was no use of detectives for solving the mysteries (Ackroyd, p165). The history of detective and science fiction and detective fiction writing in America is marked with the names of several prominent and renowned fiction writer however, it is a fact admitted by the literary critics that the detective fiction writing was introduced and made popular mainly by two prominent writers including Nathaniel Hawthorne and Allan Poe that give space to ghosts and gore in their stories and pave the way of depiction of different factious objects in the stories. ... re in 1748, The rector of Veilbye by Steen Blicher in 1829, The murder of engine maker Rolfsen by Mautrits Hensen in 1839 and Das Fraulein von Scuderi by Hoffmann in 1819 (Bittner, p76) however, the literary critics and historians believe that detective fiction actually began in the English literature with the publication of The Murders in the Rue Morgue by Allan Poe in which the first ever detective character was impressively introduced by Poe. In his later stories, Poe further refined the idea of detective and illustrated the construction of the story plots using the eccentric and brilliant detective character (Harold, p143). Later in 1843 another story The Mystery of Marie Roget was published followed by The Purloined Letter in 1844 in which Poe strengthened the idea of detective fiction and played vital role in the creation of detective fiction genre in English literature. Unlike the earlier mysterious stories Poe added the essence of fiction and emotions that made his work disti nct and his story formulas were widely followed by the detective fiction writers. The work of Poe became great source of inspiration for the writers in Unites States and all over the world. Several other science fiction writers like Jules Verne also adopted the styles and guidelines provided in Poe’s work and based their writing upon the writing style introduced by Poe (Edward Farah, p132). Poe was a versatile writer as he played important role in the evolution of several types of writing genre like detective stories, adventures, horror, science and fiction. His work in all of these genres successfully worked for his recognition as a pioneering writer of certain writing styles (Bittner, p76) however, his writing focusing upon science and detective fiction possess special place in all of