Periodic Motion Problems Assignment Example | Topics and Well Written Essays - 1250 words

Periodic Motion Problems - Assignment Example The force applied on the spring reduces hence the tension. The spring therefore accelerate mass faster, therefore the period would be shorter. b. Taking it to the moon where gravity is weaker. (U) The gravity change would have no effect on the period taken since the mass and spring are still the same, therefore no change is expected. c. Weakening the spring (reducing the spring constant). (L) For a weakened spring, the force the spring exerts is decreased. The oscillations period would be therefore lengthened, would be longer d. Making the amplitude of the oscillation larger.(U) The amplitude does not affect frequency since the distance from relaxation position would increase the restoring force. Therefore, the frequency remains unchanged. 2. For a pendulum as in Fig 9.1.2: label how the following changes would affect the oscillation period. Label each as making the period shorter (S), longer (L), or unchanged (U). Explain your response. a. Taking it to a planet where gravity is larger.(S) Gravity affects the oscillation period from the formula of finding period using length and gravity. Therefore, as the gravity increases, the period decreases as they are inversely proportional b. Increase the mass hanging on the pendulum.(U) Period is mass independent. Therefore, at gravity all masses accelerate equally, hence the period is unchanged. c. Making the pendulum shorter. (S) The length is directly proportional to the period. Therefore a decrease in the pendulum length decreases the period d. Reducing the amplitude of the oscillation (assuming that it was not very big to start with). (U) The oscillations period remains constant due to the lack of relation to the amplitude. 3. The frequency of the tone produced by a violin string is higher (H), lower (L) or unchanged (U) if we make the following changes (note that here we are asking about the frequency, whereas on the earlier problems we were asking about the period of the oscillation, which is just the inverse of the frequency) : a. Making the string shorter. (H) The frequency of the tone is high. The shorter the string the higher the pitch, therefore the high frequency experienced. b. Making the string thicker. (L) The increased thickness increases the mass per unit length. Therefore the string moves slower which decreases the pitch, hence the frequency. c. Pressing the string down on the fingerboard.(H) The vibration reduces when the spring is pressed to the fingerboard; the active part is shortened. Therefore the pitch and frequency rose. d. Reducing the tension of the string. (L) The reduced tension of string causes slow movement of the string therefore the pitch and frequency reduced Explain your response. 4. I take a violin and make an exact co py of it, except that it is bigger. The strings are identical except for the length; they have the same material and the same tension. If the new violin is 2.30 times the size of the original, at what frequency would the string that was previously the A4 string (that is 440 Hz on a regular violin) oscillate? Use units of "Hz." Explain your response. When the size increases the pitch decreases, therefore 440Hz divided by 2.3 440Hz / 2.3= 191.30Hz 5. If your hearing cuts off at 17440 Hz, what is the highest harmonic of E5 string you can hear? The answer is an integer without units. Hint: The E5 string vibrates at 660 Hz. Explain your response. The highest harmonic is 17440Hz divided by 660Hz 17440/660=26.42 Rounding off, the highest harmonic to be heard is the 26th Harmonic 6. The frequency of the sound coming from the organ pipe is higher (H), lower (L) or the same (S) if we make the following changes to the organ: a. Moving the organ to a higher elevation. (H) The air is less dense at higher elevation, therefore the molecules move more

Global Education and Development in Africa Research Paper

Global Education and Development in Africa - Research Paper Example For a country to get developed it is necessary to have a stable political system. History tells us about Africa’s long history of oppression under the rule of English who came to the continent because of the diamond and gold mines. The English and the Dutch agrarian settlers imposed Apartheid and adopted the policy of segregation and rule over the natives of the land. The Africans were denied basic rights and had no part in the political system of their own country. Apartheid laws served to legalize this discrimination against the African blacks. The country itself saw economic prosperity as the white oppressors exploited the native Africans while suppressing and depriving them of many things. Therefore even at the end of Apartheid in 1990, the suppressed nation therefore was still a developing nation. Many international contributions are now being made towards the educational and economic development of Africa. Free education programs have been introduced all around the count ry and young Africans have now begun to realize the value of education. With the help of free education there is a hope for Africa to develop as well. Problem statement The researcher tries to find out the factors, which affect the education of Africa. The researcher focuses on the factors which make Africa have a low literacy rate and how education can get common at this part of the land. Literature review Education is the most important factor that contributes towards leading a society towards success. Education changes and affects not only the personality of the student but also changes their entire thought process, which eventually influences... According to the paper education is the most important factor that contributes towards leading a society towards success. Education changes and affects not only the personality of the student but also changes their entire thought process, which eventually influences positively on the society. According to Troy, education is important for the development of the nation as a whole. For the empowerment of nations and people, the most important thing is education. This paper makes a conclusion that education is the right of every human being. Education makes one capable of living a good life. It opens doors to better employment and quality of life. Education makes one think and work for the country and helps in making the nation get to know about the importance of jobs, technology and industrialization. It is basic human right and should be provided to both men and women. The education in Africa should be free of cost so that the poor can acquire knowledge and contribute towards the development of the country. Africa is rich in resources and minerals. Due to increased population there is a lack of food. Investment should be made in Africa to make it developed. There should be jobs available for people so that they can also earn out of it. The British capture over Africa can be regarded as the worth of Africa. Africa has diamond mines and that is why they were captured. Therefore, it is not a country which does not have resources. The real truth is that they were suppressed and therefore, they were not able to develop. The apartheid laws make one understand the intensity of the English rule and the oppression of the Blacks. A stable political system is obligatory for getting a developed country and continent at large.

Quantitative Determination of Sulphate

Quantitative Determination of Sulphate Quantitative Determination of Sulphate by Gravimetric Analysis Yeo Yi Joshua Gravimetric analysis is a quantitative method to determine the amount of a substance, sulphate, by selective precipitation of the substance from an aqueous solution. In this experiment, the amount of sulphate is determined quantitatively as barium sulphate, BaSO4 by gravimetric analysis. This experiment will allow one to determine the amount of sulphate SO42- by the gravimetric method. This determination is done by slowly adding a dilute solution of barium chloride, BaCl2 to a hot unknown sulphate slightly acidified with concentrated HCl. The reaction is as followed, Ba2+ + SO42- → BaSO4 (white precipitate). The white precipitate is then filtered off, washed with water, dried in the oven, and weighed as barium sulphate. The percentage of sulphate is then calculated from the weight of barium sulphate. According to the results, the concentration of SO42- we obtained was 0.0345M and 3.31 g/L, which was close to the theoretical value of 3.38 g/L, at only a deviation of 2.11%. The experiment was successful and the results obtained were desirable. The objective of the experiment is to determine the amount of sulphate by the gravimetric method. In this experiment, the precipitation gravimetric method is used. The unknown sulfate solution is converted into an insoluble white compound, BaSO4. It is then filtered by suction filtration, washed, dried and weighed to determine the amount of sulphate. The following diagram shows the outline of the experiment. 3.1 Gravimetric Analysis Gravimetric analysis is defined as the quantitative analysis of the chemical composition of substances of materials based on the separation of each component of interest and weighting either the purified compound or a derivative of it. Gravimetric analysis include precipitation, volatilisation and electro-analytical methods. The precipitation method involves converting the analyte to a sparingly soluble precipitate which is then filtered, washed free of impurities and converted to a compound of known composition by suitable heat treatment which can be weighed. The volatilisation method involves volatilising the analyte of its decomposition products at suitable temperature. The product is then collected and weighed or alternatively determined indirectly from the loss in mass of the sample. The electro-analytical method involves the depositing electrically the element to be estimated on a suitable electrode, avoiding filtration and decomposition, by controlling the experimental conditions. This is based on Faraday’s Second Law, i.e. when a given current is passed in series through the solution containing various ions, the amount of substances that is deposited will be in the ratio of their chemical equivalent. In this experiment, the quantitative determination of sulfate, as barium sulfate BaSO4, is done by the precipitation method of gravimetric analysis. This involves precipitation by slowly adding a dilute solution of barium chloride, BaCl2, to a hot unknown sulfate solution slightly acidified with concentrated hydrochloric acid, HCl. The white precipitate is filtered off, washed with water, dried in the oven, and weighed as barium sulfate. The percentage of sulfate is then calculated from the weight of barium sulfate, this include the molarity and concentration of sulfate, SO42-, in g/L. 3.2 Reaction In the experiment, dilute barium chloride is added to an unknown sulfate solution slightly acidified with concentration HCl. Reaction: Ba2+ + SO42- → BaSO4 (precipitate) The mole ratio of SO42- : BaSO4 is 1:1. Thus, for every 1 mole of SO42-, there will be 1 mole of BaSO4. Since Moles of Solute (mol) = Molarity (M) x Volume (L) and Moles of Solute (mol) = Weight (g) à · Molar Mass (g/mol), the molarity of SO42- can be easily obtained with the volume of SO42- weight of BaSO4 and molar mass of BaSO4. 3.3 Precipitation 3.3.1 Conditions of Precipitation Precipitating agent should be mixed slowly and with constant agitation. This keeps the degree of supersaturation small and will help in the formation of crystalline precipitate. Precipitation should be carried out in dilute solution. Precipitation should be carried out in hot solution, provided the precipitate is stable at higher temperature. Crystalline precipitate should be digested for a longer time. Precipitates should be preferable washed with dilution solution of appropriate electrolyte. Washing with water is avoided as it leads to peptisation. Precipitates that are contaminated by co-precipitation or others are dissolved in a suitable solvent and then reprecipitated from the solution. 3.3.2 Properties of Precipitates Precipitate should be of sufficiently low solubility such that no sufficient loss of the solid occurs during filtration and washing Physical nature of the precipitate should be such that it can be readily separated by filtration and be washed free of soluble impurities i.e. particles should be size such that they cannot pass through the filtering media and particle size is unaffected by washing Precipitate should be stable and unreactive to atmospheric conditions Precipitate must be convertible to a pure compound of definite and known chemical composition. This may be possible by either ignition or by simple operation such as evaporation. 3.3.3 Particle Size of Precipitates The particle size of a precipitate is influenced by precipitate solubility, temperature, reactant concentrations, and the rate at which reactants are mixed. The net effect of these variables can be qualitatively accounted for by assuming that the particle size is related to a single property of the system called relative supersaturation. Q is the concentration of the solute at any instance and S is the equilibrium solubility. This equation is known at the Von Weimarn equation in recognition of the scientist who proposed it in 1925. The particle size of a precipitate varies inversely with the average relative supersaturation during the time when the reagent is being introduced. Thus, when the relative supersaturation is large, the precipitate tends to be colloidal, and when the relative supersaturation is small, a crystalline solid is more likely. A colloid consists of solid particles with diameters that are less than 10-4 cm. 3.3.4 Mechanism of Precipitation A supersaturated solution is an unstable solution that contains a higher solute concentration than a precipitated solution. As excess solution precipitates with time, supersaturation decrease to zero. Precipitates form by nucleation and by particle growth. Nucleation is a process in which a minimum number of atoms, ions, or molecules join together to give a stable solid. These nuclei form on the surface of the suspended solid contaminants, such as dust particles. Further precipitation then is governed by the competition between additional nucleation and growth of existing nuclei (particle growth). Adsorption is a process in which a substance (gas, liquid or solid is held on the surface of a solid. In contrast, absorption is retention of a substance within the pores of a solid. The charge on a colloidal particle formed in a gravimetric analysis is determined by the charge of the lattice ion that is in excess when the precipitation is complete. Digestion is a process in which a precipitate is heated in the solution which is was formed (the mother liquor) and allowed to stand in contact with the solution. Mother liquor is the solution from which a precipitate was formed. Digestion improves the purity and filterability of both colloidal and crystalline precipitates. 4.1 Outline 4.1 Precipitation of BaSO4 4.2 Washing and Filtering BaSO4 Precipitate 4.3 Drying and Weighing BaSO4 Precipitate 5.1 Weights Weight of crucible with the precipitate = 17.7473g Weight of crucible (with a piece of filter paper) = 17.5462g à ¯Ã‚ Ã…“ Weight of BaSO4 precipitate = Weight of crucible with the precipitate Weight of crucible (with a piece of filter paper) = 17.7473g 17.5462g = 0.2011 g 5.2 Molarity and Concentration Ba2+ + SO42- → BaSO4 (precipitate) (Mol Weight BaSO4 = 233.33 g/mol) à ¯Ã‚ Ã…“ Molarity of SO42- = 0.0344747 M = 0.0345 M à ¯Ã‚ Ã…“ Concentration of SO42- in g/L = Molarity of SO42- x Mol wt of SO42- = 3.313026 g/L = 3.31 g/L 6.1 Theoretical Values [SO42-] = 0.0352 M = 0.0334 – 0.0376 M (5% deviation) = 3.38 g/L = 3.21 – 3.55 g/L (5% deviation) 6.2 Comparison of Results The concentration of SO42- we obtained was 0.0345M and 3.31 g/L, which was within the 5% deviation range of 3.21 – 3.55 g/L. It was relatively close to the theoretical value of 3.38 g/L, at only a deviation of 2.11%. The results above show that the experiment was successful as the actual value was close to the theoretical value. 6.3 Precautions Taken To obtain the best results, BaSO4 crystals should be as large as possible. This facilitates filtration and washing of the crystals and the decreased surface area minimizes the amount of impurities adsorbed onto the crystals. Generally, larger crystals are obtained when the rate of precipitation is lower. The rate of precipitation can be decreased by slightly increasing the solubility of BaSO4. To minimise the rate of precipitation, the following were done: Adding 5 drops of concentrated HCl. Adding HCl increases the solubility by lowering the pH. The solubility of BaSO4 at room temperature is around 0.3-0.4 mg per 100 g of water and increases when excessive amount of mineral acid is present. Additionally, precipitation should be done in an acidic medium as when done in neutral and basic mediums, Ba2+ ions precipitate with PO43-, CO32- or OH ions which are present in the solution. Addition of excess acid is avoided. Heating to boiling. Adding BaCl2 dropwise with vigorous stirring. At the end of the precipitation, a few drops of BaCl2 was added to the clear supernatant liquid to test for complete precipitation. After precipitation, suction filtration was performed. Suction filtration allows a higher rate of filtration by using a pressure gradient created by the aspirator. The precipitate was washed with deionised water and dried in the oven. It was then placed in a desiccator. The function of a desiccator is to remove moisture from a substance or to protect a substance from moisture, thus preventing water from the humidity in the environment to react with the substance. 6.4 Sources of Error 6.4.1 Coprecipitation Coprecipitation is a process in which normally soluble compounds are carried out of solution by a precipitate. There are four types of Coprecipitation: surface adsorption, mixed-crystal formation, occlusion and mechanical entrapment. Surface adsorption and mixed-crystal formation are equilibrium processes, and occlusion and mechanical entrapment arise from the kinetics of crystal growth. Coprecipitation impurities may cause either negative or positive errors in an analysis. If the contaminant is not a compound of the ion being determined, a positive error will always result. In contrast, when the contaminant does contain the ion being determined, either positive or negative errors may occur. 6.4.2 Surface Adsorption Adsorption is often the major source of contamination in coagulated colloids (large specific surface areas) but of no significance in crystalline precipitates. Although adsorption does occur in crystalline solids, its effect on purity are usually undetectable because of the relatively small specific surface area. Coagulation of a colloid does not significantly decrease the amount of adsorption because the coagulated solid still contains large internal surface areas that remain exposed to the solvent. The coprecipitated contaminant on the coagulated colloid consists of the lattice ion originally absorbed on the surface before coagulation plus the counter-ion of opposite charge held in the film of solution immediately adjacent to the particle. The net effect of surface adsorption is the carrying down of an otherwise soluble compound as a surface contaminant. 6.4.3 Mixed-Crystal Formation In mixed-crystal formation, which is also known as inclusion, one of the ions in the crystal lattice of a solid is replaced by an ion of another element. For this to occur, the two ions must have the same charge and their sizes must differ by no more than 5%. Furthermore, the two salts must belong to the same crystal class. The extent of mixed-crystal contamination is governed by the law of mass action and increases as the ratio of contaminant to analyte concentration increases. Little can be done about it when certain combinations of ions are present in a sample matrix. This problem occurs with both colloidal suspensions and crystalline precipitates. When this occurs, the interfering ion may have to be separated before the final precipitation step. Alternatively, a different precipitating reagent that does not give mixed crystals with the ions in question may be used. 6.4.4 Occlusion and Mechanical Entrapment When a crystal is growing rapidly during precipitate formation, foreign ions in the counter-ion layer may become trapped, or occluded, within the growing crystal. Because supersaturation and thus growth rate decreases as precipitation progresses, the amount of occluded material is greatest in that part of a crystal that forms first. Mechanical entrapment occurs when crystals lie close together during growth. Several crystals grow together and in so doing trap a portion of the solution in a tiny pocket. Both occlusion and mechanical entrapment are at a minimum when the rate of precipitation formation is low, under conditions of low supersaturation. In addition, digestion often reduces the effects of these types of coprecipitation. The rapid dissolving and reprecipitation that occur at the elevated temperature of digestion open up the pockets and allow the impurities to escape into the solution. 6.4.5 Peptisation Peptisation is the process by which a coagulated colloid reverts to its original dispersed state. When a coagulated colloid is washed, some of the electrolyte responsible for its coagulation is leached from the internal liquid in contact with the solid particles. Removal of this electrolyte has the effect of increasing the volume of the counter-ion layer. The repulsive forces responsible for the original colloidal state are then re-established, and particles detach themselves from the coagulated mass. The washings become cloudy as the freshly dispersed particles pass through the filter. Washing is needed to minimised contamination but there is a risk of losses resulting from peptisation if pure water is used. This is usually solved by washing the precipitate with a solution containing an electrolyte that volatilises when the precipitate is dried or ignited. 6.4.6. Postprecipitation Post precipitation occurs when the top of the precipitate, which is in contact with the mother liquor is contaminated by precipitation of impurities. This may be due to the primary adsorption of the common ion in excess, whereby the supersaturated solution of the second material is formed on the surface of the particle which offers nucleation sites to break supersaturation and causes a secondary precipitate to form. 6.5 Improvements 6.5.1 Minimising Adsorbed Impurities on Colloids The purity of many coagulated colloids is improved by digestion. Digestion is a process in which a precipitate is heated in the solution which is was formed (the mother liquor) and allowed to stand in contact with the solution. During digestion, water is expelled from the solid to give a denser mass that has a smaller specific surface area for adsorption. Washing a coagulated colloid with a solution containing a volatile electrolyte is also helpful because any non-volatile electrolyte added earlier to cause coagulation is displaced by the volatile species. Washing generally does not remove much of the primarily adsorbed ions because the attraction between these ions and the surface of the solid is too strong. Exchange occurs, however, between existing counter-ions and ions in the wash liquid. 6.5.2 Reprecipitation An effective way to minimise the effects of adsorption is reprecipitation. Reprecipitation adds substantially to the time required for an analysis. In this process, the filtered solid is redissolved and reprecipitated. The first precipitate carries down a fraction of the contaminant present in the original solvent. Thus, the solution containing the redissolved precipitate has a significantly lower contaminant concentration than the original, and even less adsorption occurs during the second precipitation. 6.5.3 Precipitation from Homogenous Solution Precipitation from homogenous solution is a technique in which a precipitating agent is generated in a solution of the analyte by a slow chemical reaction. Local reagent excesses do not occur because the precipitating agent appears gradually and homogenously throughout the solution and reacts immediately with the analyte. Thus, relative supersaturation is kept low during the entire precipitation and homogenously formed precipitates are better suited for analysis. This results in marked increase in crystal size as well as improvements in purity. In a nutshell, the experiment was a success and the results obtained were desirable. According to the results, the concentration of SO42- we obtained was 0.0345M and 3.31 g/L, which was close to the theoretical value of 3.38 g/L, at only a deviation of 2.11%. Although there may have been various possible sources of error, we have minimised them by lowering the rate of precipitation. The amount of sulfate was successfully determined by gravimetric analysis. A. V. Kasture , H. N. More, K. R. Mahadik , S. G. Wadodkar. 2008. Pharmaceutical Analysis Vol. – I. Pragati Books Pvt. Ltd. Braun, R.D. 1982, Introduction to chemical analysis, McGraw-Hill, New York. Cammack, R. 2006, Oxford dictionary of biochemistry and molecular biology, Oxford University Press Oxford, Oxford Erdey, L., Belcher, R. Gordon, L. 2013, Gravimetric Analysis : International Series of Monographs in Analytical Chemistry, Vol. 7, Pergamon, Burlington. Skoog, D.A. 2014, Fundamentals of analytical chemistry, Brooks/Cole, Cengage Learning, Australia. Davidson College Chemistry Resources. Gravimetric Analysis [online]. Available from: http://www.chm.davidson.edu/ronutt/che115/ VIII_gravi.pdf [Accessed 20 December 2014] Middle East Technical University. Gravimetric Determination of Sulfate in a Soluble Sample [online]. Available from: http://www.metu.edu.tr/~chem223/sulfate.pdf [Accessed 20 December 2014] Santa Monica College. Gravimetric Analysis [online]. Available from: http://www.smc.edu/projects/28/Chemistry_11_Experiments/Gravimetric_Analysis_Procedure.pdf [Accessed 20 December 2014] Texas AM University. Gravimetric Analysis [online]. Available from: https://www.chem.tamu.edu/class/majors/tutorialnotefiles/gravimetric.htm [Accessed 20 December 2014]

The Real National Treasure :: essays research papers

THE REAL NATIONAL TREASURE The United States, along with the allied forces of the world, is currently fighting to find Osama bin Laden as well as his organization, al Qaeda, in Afghanistan. The new declaration of the â€Å"War on Terrorism† has withdrawn all boundaries that the terrorist organizations have been hiding behind. Although this war is a new idea to the average American Citizen, it is an old foe of the governments in most countries, which have already established antiterrorism and counter-terrorism task forces, but are now working together under an allied force. With the tightened security at the airports and military facilities, the counter-terrorism efforts are fighting back to counter the terrorists actions, but the key to fighting terrorism is to prevent the attacks from happening at all.   Ã‚  Ã‚  Ã‚  Ã‚  More than a majority of the American public supports this military action against countries that terrorize the United States. In fact according to a gallop poll, eighty-eight percent of Americans polled agree that the United States should take military action in retaliation for attacks on the World Trade Center and the Pentagon. The problem that is being faced by the world is how to avoid future attacks after the smoke clears from the current engagement.   Ã‚  Ã‚  Ã‚  Ã‚  There are two types of forces that are currently employed against terrorism and both have the same mission of fighting terrorism, with different applications. The antiterrorism force is used as a preventive action against future attacks while the counter-terrorism task force has many more post-action responsibilities. According to the Office of Counter-Terrorism, there are four policies being implemented as guidelines: â€Å"Make no concessions to terrorists and strike no deals, bring terrorists to justice for their crimes, isolate and apply pressure on states that sponsor terrorism to force them to change their behavior, and bolster the counter-terrorism capabilities of those countries that work with the U.S. and require assistance†. These steps are necessary to fight terrorism after the actions of horror have occurred, and the current Afghanistan action in search of the al-Qaeda members (including bin Laden) is an example of a counter-terrorism action.   Ã‚  Ã‚  Ã‚  Ã‚  In order to prevent future attacks, the United States must put a stronger emphasis on strengthening the antiterrorism forces. Putting more numbers on the membership board of this force is what is going to make headway in the â€Å"War on Terrorism†. It is a lot more difficult to fight terrorism before the attacks have taken place, but history has already demonstrated that the oldest form of intelligence collection, human intelligence, can be used to fight an entire country.

Divorce and Major Life Change

DIVORCE: SHOULD THERE BE REFORMS TO MAKE DIVORCE HARDER? OUTLINE Divorce: divorce can be said to be any form of dissolution of a marital union. A brief history of divorce: divorce dates back to when marriage started existing. It is aimed at bringing about peace to couples who can no longer tolerate each other. * Types of divorce * Causes of divorce Divorce: Discuss on the negative effects of divorce. The disadvantages divorce has on the various people affected. * Discuss on the effects of divorce on children. * Discuss on the effects of divorce on the parents. * Discuss on the effects of divorce on the society as a whole.Conclusion: due to the above listed points which strongly oppose divorce, there should be reforms to make it harder to get a divorce. PROPOSAL Divorce: should there be reforms to make divorce harder? Concerns of research: this paper is concerned with the effects of divorce and how it affects the society as a whole. It explains why divorce is rather negative thereby h ighlighting the adverse effects it has on the society. Question/ Topics to be addressed: 1. What are the causes of divorce? 2. How can causes these causes be controlled to avoid divorce? 3. What are the disadvantages of divorce? 4.How do these disadvantages affect the members of the family and society as a whole? Major issues or arguments on the research area include: 1. Effects of divorce on children 2. Effects of divorce on parents 3. Effects of divorce on the society My position regarding divorce: I propose the notion that there should be reforms to make divorce harder because there are too many divorce cases nowadays. Sources of information: websites, books, newspapers, journals, articles. Annotated Bibliography Foulkes, Lesley. The effects of divorce on children. n. d. 20 April 2012 . this gave me an insight on the problems children go through when their parents separate. It explains the negative effects divorce has on children. Johnson, Shannon. How does divorce affect girls? n. d. 24 April 2012 . ; this explains the effect of divorce on female children and how they are affected by it. It explains how traumatized they become. Nicholson, Joseph. what is the origin of divorce. n. d. 18 April 2012 . ; this gave me an idea of when divorce started and how divorce came into existence.Wikipedia. n. d. 18 April 2012 . ; this gave me an insight on the definition and types of divorce. It explains the various types of divorce we have. DIVORCE: SHOULD THERE BE REFORMS TO MAKE DIVORCE HARDER? The word divorce has Latin origin and is said to mean â€Å"the separation of things† (Nicholson). Marriage and divorce go hand in hand because there cannot be divorce without marriage. There is evidence that the history of divorce dates back to the distant past. It would be fair to say that divorce came about when marriage started existing.Divorce is any form of dissolution of a marital union (Wikipedia). It can also be said to be the termination of a marriage. It involv es the separation of a couple and withdrawal of any legal responsibilities which the couples owe each other. It is a mutual agreement between a husband and wife to separate due to certain reasons which make them unable to live with each other. Though divorce is a legal act, it does not always coincide with the couple’s emotions. Sometimes, you find couples splitting up not because they do not love each other but because of one offence committed by either of the spouses.Divorce is used as the easy way out when couples can no longer live with each other. The procedure of divorce varies greatly from country to country but in most countries there has to be a legal authorization from a court or any related legal authority. Between 1971 and 2011, almost all the countries legalized divorce leaving only a few countries where divorce is still not legalized. According to Wikipedia: â€Å"Between 1971 and 2011, five European countries legalized divorce: Italy, Spain, Portugal, Ireland and Malta. This leaves just the Philippines as the only country that does not have a civil procedure for divorce. Like every major life change, divorce is stressful. It brings about a lot of drastic changes to the family as a whole. It will then take time for the family to re-adjust into their new ways of life. For the couple, they learn to live an independent life without any support from their partner or in some cases with support from their partners. This factor depends on the type of divorce and the agreement between the couple. The couples also have to learn to be single parents in the case where children are involved. The children stay with either partner depending on the mutual agreement between the partners or custody given by court.Divorce can be viewed from two basic approaches; fault based and no-fault based though there are various types (Wikipedia). According to Wikipedia, we have the following types of divorces; No-fault divorce: this type of divorce does not require a ny allegation or proof of fault by either partner. This type of divorce also depends on the country. In some countries, the court only requires a statement of â€Å"irreversible breakdown† before the divorce can be legalized while in others, a statement of â€Å"irreconcilable differences† is required. Nowadays, most countries of the world do not practice this type of divorce. Wikipedia) Fault divorce: this type of divorce has been in existence since 1960. In this case, for a divorce to be legalized, the court requires proof that one of the partners committed an act incompatible with marriage. These proofs are called â€Å"grounds† of divorce or faults. This type of divorce is practiced by almost all countries of the world. (Wikipedia) Summary divorce: this is the type of divorce which is used when the partners meet eligible requirements or agree on key issues such as short marriage, no mortgage, no children and so on before the commencement of the marriage.This is only practiced in some countries. (Wikipedia) Uncontested divorce: this type of divorce occurs when the partners are able to come to an agreement with or without lawyers about their property, children and support issues. If the partners have a fair agreement, they can then present the court with it and their divorce will be legalized and if not, it is up to the court to decide how they will share everything. (Wikipedia) Collaborative divorce: this is a case whereby there is an agreement between spouses to go their separate ways which would require an attorney to be present.In this type of divorce the spouses do not necessarily separate because of disagreements, but because they decided to go their separate ways. Mediated divorce: this is a traditional type of divorce in which a mediator helps the two parties to communicate and provides information. At the end of the mediation process, they come to an agreement which they present to the court. (Wikipedia) Nowadays, the level at w hich people get divorced is rampant and it is increasing on a daily basis. There are various reasons which lead people to get divorces though some might not be supportable enough.The major family problems which lead to divorce include: adultery, lack of communication, young marriages. (Pansen) Adultery: this is when either of the spouses cheats on each other with a different person. It can also be when either of the spouses is engaged in extramarital affairs. This a very serious offence in a marriage because by committing adultery, you are sabotaging everything both of you have put into the marriage. Majority of marriages in which adultery was committed leads to divorce because it leaves the partners feeling betrayed. Pansen) Lack of communication: according to Sonel Pansen: â€Å"Lack of communication is one of the leading causes of divorce. A marriage is on the rocks when the lines of communication fail. † In recent times, a lot of families face financial problems and this causes spouses to work for longer hours and hence leaves them with little or no time to communicate with each other. Due to this, the partners do not discuss their problems or look for solutions to their problems. Little problems which could have been resolved accumulate into huge problems finally resulting in divorce. Pansen) Young marriages: as people always say; â€Å"young marriages do not last†. This statement is very true because most young marriages are rushed into. The partners at very young ages feel they are â€Å"in love† which makes them feel invincible. At that point in time, they do not think straight and feel marriage is the next step. This deprives the couple of getting to know each other. Most of these marriages end up in regret which leads to divorce. (Pansen) People who experience divorce are greatly affected by it and majority of the times, the effects are rather negative. Divorce is not in any way advisable.It brings about emotional instability, un happiness, broken homes, lack of unity. The only time when divorce should be considered is if the couple can no longer tolerate each other and they might cause harm to one another. Though these are the general effects of divorce, divorce has different effects on the different members of the family and the society as a whole. The effects of divorce can be divided into the effects on children, effects on the couple and the effects on the society. The effects of divorce on children The divorce of a couple brings about so much stress to their children.It leaves the children with the problems of having to adjust to a new life. Divorce usually brings about instability and unhappiness to the children. Most of the time, the children get drawn away from either parent depending on the parent who has custody over the children. The children also have a high tendency of having a decreased standard of living because they do not have both parents to care for them. The children might have divided l ives in cases where they live with both parents and this causes a lot of confusion for the children because they try to balance both life styles.Divorce also causes the children to bare more responsibilities because a broken home does not provide them with the care they require (Foulkes). Children from divorced homes usually tend to mature psychologically too fast or act older than their age and this may lead the children astray. Sometimes, divorce can bring about child abuse especially in situations where their parents remarry. According to researchers, the effect divorce has on children largely depends on their gender. Female children affected by divorce tend to be sexually abused due to lack of parental awareness or decreased parental awareness. (Johnson).Girls from divorce homes tend to engage in sexual activities at earlier ages hence leading to teenage pregnancies. A lot of female children also become runaways because they feel they are not getting enough attention. These girl s who run away end up prostituting or engaging in drugs because they have no guidance. Male children on the other hand tend to be more aggressive and disobedient (Foulkes). They tend to withdraw from their parents. They blame themselves for their parents’ divorce. Boys tend to go indulge in negative acts such as drinking, smoking, theft. They also suffer from depression. The effects of divorce on couplesThe effect of divorce on couples is devastating because during marriage, couples learn to live with each other and complement each other and when they get divorced, it is usually hard for them to adjust. They have to accept the fact they would not have their partner there for them anymore. Divorce is a very stressful process to couples; it brings about anxiety to both parties. Divorce affects couples socially, financially, economically and in so many other ways. Socially, because they might no longer get along or feel comfortable with each other, they result in having differen t friends or even changing their life styles.Economically, there are a lot of problems. They are faced with the problems of splitting properties (Gac). Though divorce affects the couple as a whole, its effects are rather different on the male and female partner. For male partners, divorce may interfere with their jobs and wage earning ability. They might even turn to drug trafficking or various other illegal acts as a means of income. They tend to live an unhealthy life because most of the times, they turn to alcohol and sleeping around with prostitutes for comfort. They get really stressed out and this leads to unnecessary anger.They tend to be distant from their children (Effets of divorce on men). The female partners on the other hand tend to get really emotional during divorce. A woman might feel guilty and blame herself for abandoning her family especially in the case where she has children. According to family. org. com, a renowned website, the most common effect of divorce on women is depression (Gleason). The female partners are also likely to go into prostitution as a means to get money to care for their children. They might turn to alcohol and having multiple sex partners as a means of relieving stress. The effect of divorce on the societyDivorce does not only affect the family members, it also affects the society as a whole. The family members who go through divorce usually end up as menaces to the society because they are into various negative acts. The rise in divorce rates also leads to increase in emotional instability and crime rates (The effects of divorce on the society). In societies of today, the situations concerning illegal acts and crime rates are already too high as it is and divorce is just adding to it. Sometime ago, divorce was considered to be a social taboo and was avoided as much as possible but in today’s generation, divorce seems to be a normal thing.Divorce, directly or indirectly has too many negative effects on the ind ividuals involved and the society at large. Experts suggest that the easing of the divorce process makes the rate of divorce more rampant. If there were reforms to make divorce getting a divorce harder, a lot of the problems listed above would be waved. According to the Qur’an â€Å"The most hateful permissible thing (al-Halal) in the sight of Allah is divorce (Abu Dawud, Hadith 1863, Ibn Majah, Hadith 2008). † (islamicislamic. com) This is a statement from the Qur’an which clearly shows that God is against divorce.It does not only show his detest for divorce, it further explains that divorce is the most hateful permissible sin. Jesus is reported to have said:† â€Å"Whoever divorces his wife and marries another, commits adultery against her; and if a woman divorces her husband and marries another, she commits adultery (Mark 10:11-12). † (islamicislamic. com)This statement shows that Christianity has prohibited the marriage to a divorced man or woma n. Though it is not directly said that divorce is prohibited, it is common sense to depict that divorce is not supported by Christianity or Islam.The two major religions in the world which are Islam and Christianity are strongly against divorce. Your religion is what you believe in, it determines the way you live your life and clearly it points out that divorce is wrong and should be a last resort. Is this not enough reason to stay away from divorce? Divorce greatly affects the partners involved but most of all; it affects the children the most. Why should innocent children have to pay for mistakes which are not theirs? In one way or the other, when you look at divorce from different perspectives, it all boils down to being wrong.There are too many divorces in the world now and they are mostly caused by stupidity because most of the causes of divorce can be resolved if the couple would communicate. Mostly, people just use divorce as an excuse when in the real sense it can be resolve d. I do hope people realize the wrongs of divorce and the great effects it has on people and the society and hence make reforms that would make getting divorces harder. This will greatly help because the level at which people get divorces would be greatly reduced. Works Cited Effets of divorce on men. n. d. 19 April 2012 . Foulkes, Lesley. The effects of divorce on children. n. d. 20 April 2012 . Gac, Dennis. The effects of divorce on couple. 6 October 2010. 20 April 2012 . Gleason, Kathy. The effect of divorce on children. 30 June 2010. 2012 21 2012 . islamicislamic. com. n. d. 20 April 2012 . Johnson, Shannon. How does divorce affect girls? n. d. 24 April 2012 . Nicholson, Joseph. what is the origin of divorce. n. d. 18 April 2012 . Pansen, Sonel. Common causes and reasons for divorce. 12 February 2011. 20 April 2012 . â€Å"The effects of divorce on the society. † Divorce 28 June 2010. Wikipedia. n. d. 18 April 2012 .

How Different Moral Perspectives Have Influenced

The essence of morality is ‘concerned with the principles or rules of rights and wrong or conforming to standards based on those principles’ (Dictionary. com). However differing models for living morally, resulting from the diversity of experience, will conflict in how they determine what these principles are. Thus, these ethical frameworks will hold different conceptions of ethical practice and what services such as Youth and Community work should deliver. This essay will attempt to show the importance of understanding how different moral perspectives have influenced the practice of Youth and Community work, before describing three contending ethical frameworks of deontology, consequentialism and virtue ethics; assessing under what conditions, circumstances or criteria would each of these view these practices as a moral activity. Morality A moral principle is essentially one that distinguishes between right and wrong behaviour. When someone holds a coherent and compatible set of moral principles it can be considered an ethical framework, which provides the foundation for how people understand or explain social reality. Thus, it is the basis from which they choose to conduct their lives and interact with others. Such a ‘code’ will be constructed from, and determined by all manner of life experiences, social environments and circumstances, and therefore will vary greatly. Some of the most common factors that contribute towards an ethical framework are personal or religious beliefs and cultural standards. The nature of Youth and Community work entails working closely with in both individual and group settings, where diversity of these moral values is inevitable. Different moral perspectives will necessarily emphasise different roles and purposes for these projects and organisations. As informal educators, there are no ‘ready-made guidelines’ on what constitutes good and bad practice; instead practitioners will have a set of ‘core values’ that they strive towards (Jeffs and Smith 2005). However, it is important, to understand different conceptions of what moral practice entails in order achieve social inclusion, develop practice and interpersonal skills. Deontology Blackburn argues these premises of a deontological approach to morality ‘take us to thoughts about what is due, they take us to demands† (2001: 60). The framework asserts that social reality is objective and the capacity for human autonomy is limited by ‘the recurring pattern of human behaviour [that] determines the nature of human action’ (Parker, 2000: 125). Thus, the perspective is concerned notions of justice rights and ‘duty’ or responsibility (Blackburn 2001: 88) to act in accordance with rules, as the rightness of an action is inherent and independent of the consequences it brings about. To illustrate, the killing an innocent man would be wrong because he is innocent, not because of the pain and sense of loss that his loved ones will experience. This concept can be primarily accredited to the philosophy of Immanuel Kant, a key figure in the development of early deontological thought. As a rationalist, Kant argued that the moral value of human behaviour can be revealed ‘a priori’ or through pure intellectual reason. Thus, as these principles are theoretically available to all, regardless of personal circumstance, they must have a universal applicability, which leads Kant to an essential condition for moral action, the categorical imperative: ‘Act only on the maxim whereby thou can at the same time wish it to become a universal law. ’ (Kant [1785] 2003: 6) Taylor (1975) contends that for this each individual would treat others as ends, rather than a means and that it must be ‘self-imposed by the will of each person’. However the ‘interest’ ethics of Machiavelli, Hobbs and Burke also accommodate power as an inevitable factor of human interaction and organisation. They argue that the nature of humanity is inherently weak and immoral, claiming that governing minority is required in order to maintain the social structure and order. Therefore a hierarchical system of control where policies of institutions cohere is the most appropriate method in assuring the smooth running of society and the moral development and self control of its citizens. Agents accept the legitimacy of the elite as their moral authority ’ought to be greater than that of any or all the subjects’ (Hobbes [1651] 1996: 128). In line with this perspective, deontologists would measure all human activity against its capacity for the common good of society, adopting a conservative position regarding community initiatives and actively oppose those Youth and Community organisations that aim to bring about radical change, as this would upset established social and legal structures causing social unrest and uncertainty (Sanderson et al 2006). Professional workers would ideally be upstanding members of society, holding a higher level of ethical awareness than citizens as they are in a position of power. Workers would be expected to adhere to an externally set code of practice as this was their duty owed to the service user, the profession and the employing organisation (Banks 2006: 125). These would be prescribed by institutions, meaning an intrinsic duty to instil the values of the state in the service users they worked with encouraging them to fall in line with the status quo. Hence projects aiming to reduce young offence, drug addiction or teenage pregnancy would all be morally viable as they emphasise conformity rather than value deviation. Consequentialism Consequentialism is a system of ethics distinguishes right from wrong action purely on the basis of the effects it has: ‘The moral value of any action always lies in its consequences, and it is by reference to these consequences that actions, and indeed such things as institutions, law and practices are to be justified if they can be justified at all’ (Smart and Williams 1973: 79). Social reality is maintained objective and scientifically explainable, however the individual is regarded as autonomous and independent and thus is able to make rational speculations as to whether an action will lead to good or ill. The approach adheres with the utilitarian principle of striving for the ‘greatest happiness for the greatest number’ (Blackburn 2001: 86), where a moral action involves maximising the good outcomes for all those involved. Happiness’ corresponds to different types of hedonism, where pleasure and pain are the cardinal measures of good and bad; as John Stewart Mill argues ‘desiring a thing and finding it pleasant are one and the same thing’ (Blackburn 2001: 88). Within the doctrine there are several contending models; act utilitarianism involves assessing the consequences of every individual act, whereas rule utilitarianism involves setting laws that adhere with this principle. Finally, preference utilitariansim In addition, the perspective adheres to Machiavelli’s claim that humans are naturally wicked and selfish ([1518] 1969: 111–12). Thus a key notion in this is that as a population will be motivated by ambitions, desires and self-interest, so to maintain social order at least some of these must appear achievable. Advocates of this model therefore maintain that political liberty and economic freedom available through a democratic system and a competitive free market provide adequate level of civil and personal rights, resulting in pleasure, welfare and prosperity for all citizens. Thus, the market interests of individuals would take priority over local community agendas as ultimately security and freedom and therefore happiness, are available through the cultivation of material wealth (Sanderson et al: 2006). Therefore, members holding this perspective would oppose community imperatives that hindered or constrained opportunities to make profit for self-interested groups of individuals. For them, engaging with community would be encouraged but for the purpose of forming relationships that were mutually beneficial to the market interest of those individuals involved. Thus, moral Youth and Community work would provide services for the public good. As the framework is evaluates morality on the basis of consequences, the use of measurable targets and outputs is justified in order to be able to assess if an agency is delivering effective practice. Virtue Ethics It has been argued that these principle-based models place too much emphasis on specific actions (Banks 2006; 54). Both the previous theories focus on the concept of objective morality which is essentially concerned with setting a base line for ethics where individuals are simply required to meet this level to act morally. Conversely, Virtue based ethics accommodates takes a far more optimistic view of human nature than deontology or consequentalism, choosing to focus on the characteristics of the agent rather than behaviours. Virtues can be described as idealised goals or aspirations for good conduct which give direction for ethical human behaviour and provide an alternative and superior motivation than simply instinct. Aristotle, the founder of virtue theory, argued that all experiences were equal in that every individual had the capacity to infer virtues from their subjective experience. In support, Tam (1998:19) has explained that this universal potential for any individual to ‘behave morally’ means that that community values, goals and duties are not things to be defined by elite. Banks has further argued that regulations are ‘becoming increasingly irrelevant [as they are based on] †¦professionals' definition of values without consultation with service users’. The perspective emphasises a theme of natural behaviour aiming to align social norms with virtuous principles, however Aristotle maintained the need for laws to effectively allow humans to move progressively towards these, where education and practice can support the cultivating of virtue through the ‘supreme human capacity’ of reason (Blackburn 2001:96). As virtue ethics does not consider the consequences of an action, there is no specified standard for any individual to objectively achieve. Instead, the focus is on the ‘social nature of the self’ (Blackburn 2001: 97), where it is the community member’s responsibility to find agreed meanings of subjective concepts of rightness through interaction and debate with others, developing a collective understanding of social reality. Hence, moral relativity between groups is accommodated within virtue ethics, as negotiation of community agendas will inevitably vary. Furthermore, the suggested selfish or self-interested nature of humanity proposed by the previous two doctrines can be surpassed due to this collective nature and process of developing one’s morality, where happiness or flourishing is achieved through upholding these values. With respects to Youth and Community work, this moral framework would focus on training and cultivating the appropriate virtues required for the job, maintaining that, while actions are more reliable and measurable, it is also of vital importance that professionals display certain traits in character. Thus, workers would accountable not for specific outputs, rather if they did not act as a virtuous worker would. Banks (2006: 55) has suggested typical virtues of a worker would include courage, integrity, honesty and loyalty; however this is far from exhaustive. Strong parallels can be drawn between the ‘core values’ of Youth and Community work and concept of professional virtues, thus, these would be regarded with particular importance. The model also justifies a professional community where these values would be debated and negotiated in order to maintain a consensus code of ethics. Finally the approach would support the progressive and continuous education and rehabilitation of ‘deviant’ community members, unless this is unachievable, in the case of psychopaths for example. References http://www.infed.org/foundations/w-inf7.htm

Sexual Pressures Essays - Fertility, Sexual Acts, Sexual Health, RTT

Sexual Pressures Essays - Fertility, Sexual Acts, Sexual Health, RTT Sexual Pressures The media is just one of the factors responsible for the increase in teen sexuality. Throughout a humans adolescents years they are subject to a number of sexual pressures. Through research I have found that peers are among the most influential. An adolescent is not limited to peer pressure though. They face pressures from the media as well. I believe that media pressure is just a influential as peer pressure. There is also other pressure, from people such as older friends, parents, and just adults in general. Peers is a term that can be defined as friends. I have found that many teens have friends that are athletes. In high schools, boy athletes outscore all of the other boys with the girls(Elias 1). On the other hand , girls on sports teams are much less sexually active than other females who do not play sports(Elias 1). This shows that male athletes are far more pressuring each other on the issue of sexuality. So for males who are into sports they are subjected to a host of pressures and can as a result do things they would not normally do. On the contrary, I found that females who do sports are far less pressured and influenced about sex. In fact they are far less likely to be sexually active than teen females who do not participate in sports. I believe that all teens in general should know the results of being a sexually active teen. There are many consequences of being sexually active, one of the major one being sexually transmitted diseases. A sexually transmitted disease might not sound so bad but, some can cause sterility and even worse , death. Even when condoms are used, a STD can still be transmitted. Depending on the type of std they can or can not be cured. A few diseases that can not be cured include herpes, HPV, And HIV, which later turns into the virus AIDS. The disease HPV can cause cervical cancer and HIV results in a long, painful death. Almost a third of sexually active teens contracted a new STD within a mere six months, reported one study, even among condom users(Terilliger 2). Once a teen has become sexually active he or she must assume new roles. Males must think about the issue of perhaps becoming a father by accident of intentionally. Moreover, females must think about all the consequences of having sex. No sex happens to be the safest form of sexual activity. It is not hard for a condom to break of for birth control pills to be forgotten once or twice during a cycle to cause a pregnancy. In addition, once a female becomes pregnant there are few options she can explore. In a like manner, adults are an impact on a teens sexuality. Most teens look up to an adult and admire them. Likewise, they want to try to be like there idol. This is why an adult can have a profound impact on a teen trying to cope with the pressures of sexuality. That is why all adults in all classes of society should watch what they do or say in relation to teens. For example, The President of the United States was adulterous and lied about it. We as society say so what? when the accusations surfaced at first(Kavanagh 13). In the same fashion, the media plays a huge part of sexual pressures exerted on a teen. One way being television. Television at the present time is full of vulgarness and sex. As far as prime time television is concerned is safer to watch old re runs of the Lucy Show and the Cosby Show. they ere from an era where sex was not such a prime time staple(Riley 186). This show how much society has changed concerning sex. In the old times sex was not a way to get better ratings like it is today. Similarly, music has an impact on an adolescents sexuality. Rap lyrics at the current time are full of obscenities and words concerning sex. In the rapper Eminem's song Role Model , he says, Im going to rape her and leave her, once I get near her(mathers 1). When the media says these kind of things teens are lead to believe that this type of behavior is normal and should not be digressed. Every teen listens to some kind of