Friday, November 29, 2019

Porter’s Five Forces in an International Market Essay Sample free essay sample

This paper discusses and describes Michael Porter’s Five Forces Model. It shows how this theoretical account can be good in developing a scheme for enlargement in new markets. including those runing internationally. And it besides shows that though the Porter Five Forces Model has some defects. it can be utile overall in developing new schemes in concern. We will write a custom essay sample on Porter’s Five Forces in an International Market Essay Sample or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page When developing a strategic program in concern. one has to take into history all the many factors that will impact their chosen market. To assist ease this. Michael Porter developed a theoretical account depicting five forces that influence the market. This paper discusses and describes Michael Porter’s Five Forces Model. It shows how this theoretical account can be good in developing a scheme for enlargement in new markets. including those runing internationally. And it besides shows that though the Porter Five Forces Model has some defects. it can be utile overall in developing new schemes in concern. Porter describes these five forces as â€Å"threat of new possible entrants. menace of replacement product/services. dickering power of providers. dickering power of purchasers. † and â€Å"rivalry among current competitors† ( Management Study Guide. 2012. parity. 1 ) . The menace of possible new entrant refers to the menace that a new company may make up ones min d to come in the specified market. This company could be a new start-up. or may be a well-established company looking to diversify. In either scenario. the entry of a new house will diminish market portion and likely cause competition among other houses to recover this lost portion of the market. The hazard of new entrants to a certain market can change depending on barriers to entry such as authorities ordinance. high costs of entry. or trade name trueness. Menace of replacements is the menace of other closely related merchandises ( or services ) that can fulfill a customer’s demand. If there are many near replacements to a merchandise. so this efficaciously sets â€Å"a bound on the monetary value that houses can bear down for their merchandise in an industry† ( Management Study Guide. 2012. parity. 7 ) . If a house sets their monetary value excessively high. so they risk losing clients due to exchanging to another close trade name. Dickering power of providers refers to the power a provider has over a bring forthing house. The provider may be able to asseverate power such as higher monetary values over a bring forthing house. if it is one of few viing providers. But. if there are many providers or the market is really standardised. so the providers may hold s mall or no power over manufacturers. Dickering power of purchasers refers to the impact a purchaser can hold over a certain bring forthing house. In most consumer merchandise markets. purchasers are â€Å"fragmented† and â€Å"no purchaser has any peculiar influence on merchandise or prices† ( QuickMBA. 2010. parity. 25 ) . However in some markets. there may be merely a few or even merely one purchaser. so that the purchaser may hold important power over what a house can bear down for the merchandises or services offered. Rivalry is competition between houses within the same industry to command a larger market portion. This competition can be â€Å"cutthroat. intense. moderate. or weak. based on the firms’ aggressiveness in trying to derive an advantage† ( QuickMBA. 2010. parity. 6 ) . Firms will utilize tactics such as â€Å"raising or take downing prices† or â€Å"exploiting relationships with suppliers† in order to take a larger portion of the market ( parity. 7 ) . Porter’s five forces theoretical account should be considered whenever developing a scheme for come ining any new market. There are so many factors to see when come ining a new and different market. one can utilize this theoretical account to travel through and carefully see these forces when be aftering a scheme. This theoretical account can be utile as a guideline to do one consider all possible factors. including 1s that they may non hold considered beforehand. particularly for a really different international market. One factor that this theoretical account covers that would be extremely in of import to international enlargement is authorities ordinance as a barrier to entry. When traveling into an international market. where the Torahs and authorities ordinance can be significantly different than one’s place state. one should analyze the ordinances really closely to do certain that while run intoing all ordinances. the venture will still stay profitable. This is merely one of many factors covered by this theoretical account that would be good to analyze in sing an international enlargement. Although Porter’s theoretical account is good in many ways. it besides has its defects like any other concern theoretical account. The theoretical account ignores complementaries. which â€Å"refers to the trust that develops between the companies whose merchandises work is in combination with each other† ( Management Study Guide. 2012. parity. 9 ) . The theoretical account besides â€Å"overlooks the function of invention every bit good as the significance of single house differences. † which â€Å"presents a dead position of competition† ( parity. 9 ) . As stated. this paper discusses and describes Michael Porter’s Five Forces Model. It shows how this theoretical account can be good in developing a scheme for enlargement in new markets. including those runing internationally. And it besides shows that though the Porter Five Forces Model has some defects. it can be utile overall in developing new schemes in concern. Mentions Porter’s Five Forces. ( 2010 ) . QuickMBA: Accounting. Business Law. Economics. Entrepreneurship. Finance. Management. Selling. Operationss. Statisticss. Strategy. Retrieved February 6. 2013. from hypertext transfer protocol: //www. quickmba. com/strategy/porter. shtml Porters Five Forces Model of Competition. ( 2012 ) . Management Study Guide – Free Training Guide for Students and Entrepreneurs. Retrieved February 6. 2013. from hypertext transfer protocol: //www. managementstudyguide. com/porters-model-of-competetion. htm

Monday, November 25, 2019

Free Essays on Islam Jibreel Hadith

Man has contemplated the idea of faith through out human history. From the moment he realised his existence he began to question, who are we? What are we? where are we going in this vast ocean of obscurity?. It is only through a select group of people where we can receive these answers of infallible truth. People who have chosen to accept greatness and people who have had greatness thrust upon them. To further understand the motives of such people we must further understand the definition of faith from hemisphere to hemisphere. According to Collins English Dictionary faith from a purely contemporary Western point of view â€Å"Faith: n. which describes a strong or unshakeable belief in something, esp. without proof or evidence, 2.a specific system of religious beliefs, 3. In Christianity, a trust in God and in his actions and promises, 4. A conviction of the truth of certain doctrines of religion, esp. when it is not based on reason, 5. Complete confidence or trust in a person, remedy etc. 6. Any set of firmly held principles or beliefs. 7. Allegiance or loyalty, as to a person or cause. From the Anglo-English word â€Å"feid† which means indeed or really or Latin â€Å"Fides† which means trust or confidence. † To explain faith from an Islamic point of view through a simple definition as listed above will not do the complex concept justice, In Islam faith takes on many shapes, forms, colours and manifestations. It is a blend of harmony and balance that can only be explained from a divine dialogue between the final Messenger of Allah, The Prophet Muhammad (peace be upon him) and the Arch Angel Jibreel, the following hadith has been narrated by Hadrat Umar (RA) and compiled by Imam Sharaf al-Din Yahya and Ibn Sharaf al-Nawawi. â€Å"It was related on the authority of Umar (RA), who said: One day, as we were sitting with the Messenger of Allah, there came upon us a man in very white clothes and intensely black hair. No sign of journey was... Free Essays on Islam Jibreel Hadith Free Essays on Islam Jibreel Hadith/ Man has contemplated the idea of faith through out human history. From the moment he realised his existence he began to question, who are we? What are we? where are we going in this vast ocean of obscurity?. It is only through a select group of people where we can receive these answers of infallible truth. People who have chosen to accept greatness and people who have had greatness thrust upon them. To further understand the motives of such people we must further understand the definition of faith from hemisphere to hemisphere. According to Collins English Dictionary faith from a purely contemporary Western point of view â€Å"Faith: n. which describes a strong or unshakeable belief in something, esp. without proof or evidence, 2.a specific system of religious beliefs, 3. In Christianity, a trust in God and in his actions and promises, 4. A conviction of the truth of certain doctrines of religion, esp. when it is not based on reason, 5. Complete confidence or trust in a person, remedy etc. 6. Any set of firmly held principles or beliefs. 7. Allegiance or loyalty, as to a person or cause. From the Anglo-English word â€Å"feid† which means indeed or really or Latin â€Å"Fides† which means trust or confidence. † To explain faith from an Islamic point of view through a simple definition as listed above will not do the complex concept justice, In Islam faith takes on many shapes, forms, colours and manifestations. It is a blend of harmony and balance that can only be explained from a divine dialogue between the final Messenger of Allah, The Prophet Muhammad (peace be upon him) and the Arch Angel Jibreel, the following hadith has been narrated by Hadrat Umar (RA) and compiled by Imam Sharaf al-Din Yahya and Ibn Sharaf al-Nawawi. â€Å"It was related on the authority of Umar (RA), who said: One day, as we were sitting with the Messenger of Allah, there came upon us a man in very white clothes and intensely black hair. No sign of journey was...

Thursday, November 21, 2019

The challenges facing kindergarten teachers to deal with children whom Essay

The challenges facing kindergarten teachers to deal with children whom English is an addtional language - Essay Example I preferred these types of questions because they are useful in obtaining in-depth information on the research question. I purposely chose my participants based on two primary characteristics: 1) Were they teachers of kindergartens and 2) do they deal with children whom English is the second language. Upon introducing the research questions to a respondent, I gave out recent experiences of other teachers in other parts of the country along with the structured open-ended questions. The only delimitation in this data collection is that, the open-ended questionnaire did not collect the respondents’ first name, phone number, and the email address. In this case, I am unable to contact the respondents after the interview. Majority of the respondents were females. The females were 17 whereas the males were seven. Studies indicate that many people expect feminine touch from a kindergarten teacher (Rimer, 2003). Men keep away from this job because it offers low pay and continues to tag the profession as women’s work. The few men that teach kindergartens are regarded as insufficiently masculine, gays or even pedophiles! Majority of the respondents had a class size of 16 to 25 children. Four respondents had a class of 1 to 15 pupils, seven respondents had a class of 25 to 35 pupils, and the rest had a class of 16 to 25 pupils. Kindergartens prefer a medium classroom size, of about 20 to 30 students. According to studies, teachers of medium sized classes can increase learning and narrow the achievement gap between ethnic and racial groups (Haimson, 2003). Pupils whom English is an additional language assigned to medium sized classes have been proven to achieve English language proficiency, receive better grades, and exhibit improved attendance (Haimson, 2003). Despite students with EAL benefiting a lot from medium-sized classrooms, most of them are more likely to be enrolled in bigger classes, say over 25 pupils. Experts believe medium sized

Wednesday, November 20, 2019

Macro and micro economics Assignment Example | Topics and Well Written Essays - 500 words

Macro and micro economics - Assignment Example Letting the price of shirts be x and that of computers be y. The two countries might trade if the price of computers is: y=11/12x d) There will be less trade between the two countries. The economic well-being of the citizens of the two countries improves since both can acquire the commodities locally. a) The worker in Brazil. This is because they can produce one ounce of coffee in loess time as compared to the worker in Peru and also produce soya beans at a higher rate. b) The worker in Brazil. This is because they can produce the same amount of coffee as the worker in Peru but at a faster rate or within few minutes. c) Peru will import coffee. Brazil will specialize in producing coffee and hence export to Peru. Peru will specialize in production of soya beans. d) After the country specialize in producing and exporting those commodities which they can produce at a relatively lower cost and import those goods which are relatively expensive to produce.

Monday, November 18, 2019

Mind body issue Essay Example | Topics and Well Written Essays - 1000 words

Mind body issue - Essay Example One of the most important questions asked is whether the mind is part of the body or the body part of the mind. What makes the two connect or interact with each other if at all they are distinct? This also makes many wonder, which one should be in charge in case of distinctive existence. The question requires proper understanding and argumentation because every point of view has a logical explanation. The main aim is to ensure that the process of determining this will meet the main attributes of the relationship, explaining everything based on the theories put forward to explain this relationship. The mind and the body are two distinct attributes that casually interact at given times for the sake of performing bodily activities. Descartes is one of the proponents of dualism and pointed out clearly that the mind was the consciousness that existed within an individual. Unlike the brain, which was the source of the intelligence individuals possessed, the mind was an attribute that defined and determined the thought processes of a human being (Squire 20). The main reason for taking a dualistic stand is the fact that the mind has a different functionality in comparison to matter. Mind has a conscious attribute that cannot not reduced to physical attributes despite the number of times studies are conducted on it. A proper organization of matter allows for emergence of mental properties (Kim 40). The mind will only react to that which it sees as appropriately connected to the way it operates. This means that the mind will not come to full action when it perceives something is not okay. When someone is sick, the body has some deficiencies. The body will not operate well and the mind will be unresponsive in that are a. For example, if one has leprosy, the body goes numb and no thought process can make that part of the body to have any form of functionality. The mind will work on

Saturday, November 16, 2019

Casting Engine Blocks Automotive Manufacturing Processes Engineering Essay

Casting Engine Blocks Automotive Manufacturing Processes Engineering Essay There are several different types of manufacturing processes to choose from out there and many different alloys that are at ones disposal to be used. Some processes include: sand casting, die casting, and lost-foam casting. In this report, sand and die casting will be discussed with the focus on sand casting. Also, choosing a suitable alloy will be discussed. Is the alloy going to be ferrous or non-ferrous and what qualities does the alloy chosen have, to make it a good choice to use with the manufacturing process is a question to ask oneself. In this case, sand casting has the capability of using any alloy whereas; die casting is generally limited to non-ferrous alloys. Aluminum is a very common alloy to use and it can be used for almost any process. Although, this alloy possesses some qualities that would be desired by most, gray cast iron was decided by us to possess even stronger qualities that led us to choose it for the material used in the design of a cast iron block. Sand cas ting is now and has been for some time one of the most commonly used manufacturing processes and the use of gray cast iron fits very well with this process. The reasons for choosing sand casting as the manufacturing process and gray cast iron as the alloy will be discussed further in the report. Problem Statement: To select a suitable casting process and material that will be as per the requirement of efficient, cost effective and environmentally friendly engine block production. Objectives: To discuss the various casting processes that can be used to manufacture an engine block. To select a suitable alloy for the part. To select a suitable casting process. To justify the above selection. To design the selected process to cast an engine block. To discuss the defects in the casting and challenges to be faced while using the selected process and the methods to overcome these. To discuss the cost consideration and environmental impact of using the selected process. The Identification of Suitable Casting Processes The manufacturing of cast engine blocks out of cast iron involves the consideration of what manufacturing process to use as well as a suitable alloy. The alloy chosen for our company is gray cast iron and the process of selecting this particular alloy will be discussed further in the next section. This section will discuss how our company came to choose sand casting as the manufacturing process by comparing this process with other processes. There are several factors involved in choosing a suitable casting process for manufacturing cast engine blocks. Some of these factors include the type of material that can be used in the casting process, the type of part that can be cast, the finish of the product, the amount of time it takes for the process, and the cost involved. In this section, sand casting will be compared with die casting. Although both are good processes to use, the results vary depending on what process is chosen. There are some similarities between the processes, while there are mostly differences in most aspects of the processes. Selecting a Suitable Alloy An engine block is the main part of an engine which holds all most all the parts of the engine. It should house the internal moving parts, fluids and also withstand the forces and pressure developed during combustion. It should have high strength, wear resistance, good machinability, good vibration absorption capacity, corrosion resistance, low thermal expansion, good thermal conductivity and manufacturability and should have less manufacturing cost. In general, most of the industries use cast iron for manufacturing the engine blocks because of the following reasons: It is cheaper, excellent damping capacity, good wear and high temperature resistant, easily machinable, inexpensive to produce, and can tolerate high pressure and RPM. Other materials which are considered for manufacturing engine blocks are aluminum alloys and magnesium alloys. But, after considering the above factors using cast iron is the feasible option. For choosing the right alloy from cast iron variants, their material properties are compared. Table 1.1 compositions of the different cast irons Name Nominal composition [% by weight] Form and condition Hardness [Brinell scale] Grey cast iron (ASTMA48) C  3.4, Si  1.8,  Mn  0.5 Cast 260 White cast iron C  3.4, Si  0.7, Mn  0.6 Cast (as cast) 450 Malleable iron (ASTM A47) C  2.5, Si  1.0, Mn  0.55 Cast (annealed) 130 Ductile or nodular iron C  3.4, P  0.1, Mn  0.4,Ni  1.0, Mg  0.06 Cast 170 Ductile or nodular iron (ASTM A339) cast (quench tempered) 310 Ni-hard type 2 C  2.7, Si  0.6, Mn  0.5, Ni  4.5, Cr  2.0 Sand-cast 550 Ni-resist type 2 C  3.0, Si  2.0, Mn  1.0, Ni  20.0, Cr  2.5 Cast 140 Table1.2 comparision of the strengths of the cast irons alloys Table 1.3 castability of the different metals. As we need a material which is hard enough, having good strength and good castability, from Table 1.1 we can find gray cast iron having enough and nominal hardness. There are materials which are harder than grey cast iron but as hardness increases material can wear the internal components and will be brittle in nature which is not a preferable property. From Table 1.2 we can observe that elongation is less with good yield strength for gray cast iron which is one of the desirable properties. Both pearlitic and martensitic gray cast irons have less elongation with high yield strength but martensitic gray cast iron has more hardness which is against our requirements and Table 1.3 tells that castability is excellent for gray cast irons compared to other metals and alloys. For desired properties like castability, fluidity, resistance to deformation, relatively low melting point and cost On the whole from the above mentioned tables 1.1, 1.2, 1.3 and above desirable properties gray cast iron matches our requirement. So we finally decide to go for the pearlitic gray cast iron. The Effect of Manufacturing Processes on the Product Sand casting and die casting both consist of the pouring of molten metal into a mold, allowing the metal to cool until it solidifies. The type of mold used in these processes usually varies drastically from one another. Die casting uses the molten metal that gets forced into a mold and is subjected to high pressures so that it solidifies very nicely into the die cavity. Sand casting generally uses silica sand as its material for the mold. Sand is generally chosen as the mold material because of the characteristics that it possesses and the fact that its relatively inexpensive. The strength of the mold is critical in the manufacturing process and using the right type of grains in the sand can improve the strength. A specific type of sand is commonly used for sand casting, and that type is called green molding sand. Green molding sand uses a mixture sand, clay, and water. This mixture provides a moist sand to be present in the mold when the metal is poured into the mold. This moist sand then becomes easily reusable, which contributes to lowering the expenses in the process. Sand casting is an efficient process to use because of the flexibility in what can be done as part of the process. There is no limitation to what material can be used, which means that gray cast iron is available to be used when sand casting engine blocks. There is also no limitation to the type of part that can be cast. The part can also be of any size or shape or weight. Another reason for using sand casting is the minimal costs when compared to other manufacturing process, the amount of time required for production of the parts, and the number of parts required in a production cycle. Sand casting allows for the production of one part at a time if necessary, with no limit to the number of parts to be produced. All costs, including mold material, tooling, and labor costs are relatively low compared to other processes. Although, sand casting has many good qualities that persuade us to use this process, there are a few deficiencies in using the process too. These deficiencies include the finish of the material, porosity, and dimensional tolerance. The dimensional tolerance is much greater than that of other manufacturing processes which causes a greater rate of shrinkage. This shrinkage increases the porosity of the material, which results in a rough surface finish. Die casting is an efficient process to use because more precise results. The die casting process allows for the production of solid, fine parts at a high rate. No additional machining should be necessary on these parts since the dimensional accuracy is so good to begin, with that these parts are ready for use after one cycle of the process. Although the types of materials that can be used are limited, which is mentioned in the next paragraph, experimental results show that gray cast iron is a very workable material for die casting. Even smaller sized parts like pins and fasteners can be casted using die casting, but the smooth surface finish and precision of the parts allow for them to be put to good use. Similar to sand casting and any other casting process, die casting has its disadvantages too. Generally, only nonferrous materials can be casted using die casting. The materials work very well, but that still limits the resources out there for the process which could potentially cause some problems. Also, since the parts produced are small, this limits the potential uses of the part. Another problem that could arise is that even though the labor costs are very low since the process is mostly run on automated systems; these systems and all other equipment are relatively expensive. This is the one major difference between sand casting and die casting that cannot be ignored. Ways to lower the costs are still being worked on, but there is still some work left to do to bring these costs down a sufficient amount. It takes a long time to produce these parts, but being able to produce a large quantity at a time helps to make up for the long lead time. These deficiencies will be looked at in greater detail in a later section. The Sand Casting Procedure Sand casting Sand casting is one of the oldest techniques of manufacturing. In this form, molten metal is poured into a mould made of sand. When the metal is hardened and cooled, the part is removed. In sand casting, the mold is made of packed sand. Mold preparation In the process, we chose green sand casting as our casting process. The sand mixture consists of sand, clay binder, water and additives. The sand also includes zircon(ZrSiO4), olivine(Mg2SiO4), iron silicate(Fe2SiO4), chromite(FeCr2O4). Zircon, olivine and iron silicate have low thermal expansion, and chromite has high heat transfer. During the process, all the ingredients are mixed together and the sand should be moist and not dry. Figure 1. Green Sand Casting Mold Sand casting procedure During the process, patterns and cores are made; sand is thoroughly mixed and then formed about the patterns as per our need. The patterns are removed and the two halves of the molds are put together and are thus ready for pouring the molten metal. The preheated metal is then poured slowly into the mold until the mold is full. The part is then cooled and after the part solidifies thoroughly, the sand mold is removed by striking the part. Lastly, we machine the casting to give it its final shape. Defects Sand castings have many defects such as inclusion, shrinkage, air holes, sand holes, cold shut and cracks. In this procedure, the granule shape, granule size and collapsibility of sand mold effect sand mold casting. Quality inspection Quality inspection of sand casting can be done by sharp impact test, x-ray inspection, pressure test, magnaflux inspection and ultrasonic test. Whereas, to inspect the casting in the foundry itself; visual inspection, dimensional inspection, chemical component inspection and testing to figure out the physical properties by doing the hardness or tensile strength test are commonly used. Casting products and mass production The sand used in making the mold can be used again and again(reclaimed), thus the green sand casting process is cheap and widely used compared to other casting process. Due to this mass production of this process in a cost effective manner is possible. CASTING DEFECTS Some of the possible defect that may arise during the sand casting process Shrinkage defects: These defects mainly occur when feed metal is not available to compensate the shrinkage as the metal solidifies. These defects can be avoided by providing proper gates, vents and risers in the mold. Gas porosity: They are formed as bubbles on the casting after it is cooled. This is due to the presence of large amounts of dissolved gas in the molten metal. To prevent this, the metal is melted in vacuum or in the presence of specific low solubility gases such as argon or carbon dioxide. To minimize gas solubility, the super heat temperature can be kept low. Misruns and cold shuts: They are the empty cavities in solidified metal, due to the lack of fluidity, narrow cross sections, back pressure and turbulence. These are rectified by reducing the pouring temperature, adding sprue and proper gates. Metal penetration: This is the presence of rough surface finish because of the liquid metal penetrating the sand mould. This penetration is due to high pouring temperatures. Lowering the pouring temperature will avoid this phenomenon. Hot Spots: They are formed on the surface that is very hard because of the quick cooling compared to the surroundings. Changing chemical composition and providing proper cooling methods like using chills, these can be avoided. Inclusions: These are metal impurities generally oxides, sulfides, nitrides and carbides formed from the material that is eroded from furnace or impurities present in the mold. These inclusions can be reduced by using ceramic filters or melting the metal in vacuum Hot tears: Also called as hot cracking, these are the failures in the casting that are formed while cast metal starts cooling because of the weak strength of the metal when it is hot and the internal stresses. These can be prevented by proper mold design. Mold erosion: Erosion of the mold sand occurs while filling molten metal into the mold, caused due to sand having less binding strength or high pouring velocity of metal. This can be avoided by redesigning the gating system or by using large runners. Identifying challenges in the process and how they are being addressed An engine block has a very complex geometry. The engine block has internal recesses for the coolant, i.e., water to circulate and the cylinders for the piston to reciprocate. So casting such an intricate shape is always challenging. First, the pattern for making the mold must be very carefully designed because the quality of our casting is as good as the quality of our pattern. For such a complex machined part, we must carefully monitor the cooling of the casting; as such a complex part is bound to cool in an uneven manner. We all know that the major problem concerned with sand casting is the poor surface finish, but in an engine block the only important surface is the cylinder where the piston will reciprocate and it is not important for the cooling water to flow through highly machined surfaces. In sand casting, the surface finish can be substantially improved by using finer sands and we are adding zircon to the sand which will result in a better surface finish. Another challenge in sand casting an engine block is the pouring of the molten metal. Since an engine block is huge and has a complicated geometry, the pouring rate of the metal should be carefully monitored. We should not pour it at such a slow rate that the metal solidifies in the pouring vessel itself and it should not be so fast that molten metal could not reach some regions resulting in voids. In fact, the metal should not be poured. It should be pumped against the gravity so as to avoid gas entrapment. As said earlier, an engine block, due to its geometric complexity will tend to cool irregularly. So the risers should be properly placed to take into account this irregular cooling. Addressing the cost consideration The cost associated with sand casting can be divided into three broad categories: Material cost, Production cost and Tooling cost. Material cost As the name suggests, material cost includes the cost of all the materials used in the sand casting process. These materials include the metal, the mold sand and the core sand. The cost of the metal will depend on a number of factors such as cost of the alloy, purity of the alloy and the castability of the alloy. For more pure alloys, the cost will be higher. For alloys with lower castability, additional metal will be required in order to fill the flow channels and the feed heads to assure a good casting, so in such cases, the cost will be higher. The cost of the mold sand and the core sand will depend on the shape and size of the mold and the core respectively. In this case, since our part is an engine block, due to its size and geometric complexity, the cost is bound to be high. Production Cost Again as the name suggests, production cost will include the cost of all the operations that will take place during the process of sand casting. These will include core making, mold making, pouring, and cleaning. The addition of cores to the casting will increase its cost because it will slow the process down. An engine block, a very complicated part, will definitely have cores which will increase the overall production cost by slowing down the production. Pouring and cleaning costs are determined by the size and weight of the casting. So these will be high for an engine block as it is a big and heavy component, and the mold will take longer to fill and the cast block will take longer to be cleaned. Tooling Cost Tooling cost is the cost associated with the tools used during the sand casting process. These include the patterns used to make the molds and the core-boxes to make the cores. Since an engine block is huge and geometrically complicated, tooling cost will be high. Also, since we are designing for mass production, the patterns as well as the core-boxes will have to be used more frequently. The constant use of the tool will result in the wearing down of the tool at a high rate, which in turn will increase the overall cost as the tool will have to be replaced. A solution to this problem will be to use patterns and core-boxes of a better quality material, but again the cost will be high. Environmental Impact of using Sand Casting: Foundries are generally regarded as being dirty and unfavorable to the environment. The primary issues being faced by the casting industry are the excessive volumes of by-products that are to be sent to landfills, and the Hazardous Air Pollutants (HAPs) which are released during the process. Of all the by-products generated by volume, sand is the largest. Even in processes which involve a high level of sand recovery, some amount of new sand is always required to maintain the optimum quality of sand in the system. This in turn will result in loss of sand from the system. After its use, the sand is either sent to a landfill for disposal, resulting in soil pollution, or it is reclaimed off-site. Not all foundry sands are considered hazardous, especially the ones from ferrous foundries, which pass the TCLP (Toxic Characteristic Leaching Procedure), which, after use can be sent to unlined landfills for disposal. Some non-ferrous sands on the other hand contain high levels of metal because they have to be sent to secured landfills and not the unlined ones. Chemical binders inwaste sand can become a crucial issue if resin-coated sands are wasted in large volumes before the pouring stage as most of the binder in the mold is burnt off during the pouring stage. Hence, the binder level should be carefully monitored so as to prevent it from reaching unacceptable levels over a period of many reclamation cycles. The second largest by-product by volume in the sand casting process is the baghouse dust. It is typically formed when the sand is reclaimed multiple times, which results in the sand grains breaking down to dust particles. Not only will it affect the quality of the casting, but it will also result in health issues such as silicosis. Slag is yet another by-product which is formed during the sand casting process. When flux is added to the molten metal to remove impurities, it reacts with the impurities to form slag which floats to the surface and is to be removed before pouring the metal. The slag so formed has a glass like appearance and is not really hazardous as it can be easily disposed of in unlined landfills. Apart from these solid wastes, there is also a substantial amount of gaseous waste (emissions) produced during the sand casting process. These include benzene, carbon monoxide, hydrogen sulphide, sulphur dioxide, phenols, nitrous oxide and other HAPs. Of all the pollutants, benzene is the most emitted. Conclusion In many ways the job of an engineer is not simple, because to choose between one material or one process over another is never easy. There is no process or material which can be considered as perfect. Each process has its advantages and disadvantages. An engineers job is to find an optimum solution so that the huge amount of investment in this industry is justified. In this project we, as engineers have done a similar job. We have selected sand casting for manufacturing the engine blocks and have justified our decision by discussing various aspects, both good as well as bad, of the selected process.

Wednesday, November 13, 2019

Philosophy is Important Essay -- essays research papers

Philosophy is Important Philosophy is an important subject, because it helps us understand three big questions; â€Å"why are we here†, â€Å"what do we do†, and â€Å"how do we treat each other†. These are important questions to answer because without them we may end up in a situation much like the Taliban is in right now. Complete chaos created from confusion about those three big questions. These questions are left in a general sense because there are many different ways to look at them. After all we have many different people with many different ideas and so to come to a more concise understanding of such important topics we need everyone’s viewpoint. This is the purpose of something philosophers call â€Å"The great conversation†. For example: Think back to the attack on the US of September 11th. These attacks were caused for a variety of reasons, one of which being that the Taliban believed they had the answer as to the correct way to run a society. Therefore â€Å" The Great Conversation† was stopped. After all if I am the Taliban and I believe I have the answer as to how to run a society because I feel I have answered the three big questions, then why keep discussing? Why include anyone else’s opinions and beliefs? Because if you don’t then things could become violent, just as they did in Afghanistan. So you say you don’t want to be like Afghanistan? Well good! So then how do you determine the answer to those three big questions, and what if there is more than one answer? That’s the purpose of philosophy and more specifically â€Å"The Great Conversation†, to come up with the best possible answer to all questions that may arise without eliminating the possibility that a better answer may exist. Take â€Å"Plato’s Cave† for example: People sit in a cave looking at shadows cast on a wall, from the light of a fire behind them. They have been chained to the floor for centuries. They are fed, clothed, and generally stimulated by the shadows, which are those of puppets on a bridge behind them. The people believe the shadows are real. But ponder just for a second; what if you were one of those people? What if you were released from your shackles and allowed to move about the cave freely. How would you explain to the others that the shadows they are seeing are not real people, but actual shadows made by the puppets on the bridge behind them? Would they believe you? Now switch roles. What if... ...t is true?† Once again we deal with two opposite ends of a debate spectrum. We focus on a few things here. One of which is where does knowledge come from? Those who believe that the exercise of reason, rather than experience, authority, or spiritual revelation, provides the primary basis for knowledge are called Rationalists. Basically they believe people have revelations, and are born with knowledge (innate.) On the opposite, those who believe that experience, especially of the senses, is the only source of knowledge are known as Empiricists. Reason versus experience, you decide for yourself. For our last and final study we explore Ontology; the nature of being. Is it human nature to fill your space with material goods? Do they bring you happiness? Is that happiness true happiness? If you answered â€Å"yes† to any of those questions you may be a â€Å"Materialist† while if you answered â€Å"no† to any of those questions, there is a chance you may be an â€Å"Idealist†; someone who believes that the use of ideas, thinking, questioning, and active mental stimulation are far more valuable in terms of achieving happiness than the passive, vegetable style consumption of goods that plagues many of us. Philosophy is Important Essay -- essays research papers Philosophy is Important Philosophy is an important subject, because it helps us understand three big questions; â€Å"why are we here†, â€Å"what do we do†, and â€Å"how do we treat each other†. These are important questions to answer because without them we may end up in a situation much like the Taliban is in right now. Complete chaos created from confusion about those three big questions. These questions are left in a general sense because there are many different ways to look at them. After all we have many different people with many different ideas and so to come to a more concise understanding of such important topics we need everyone’s viewpoint. This is the purpose of something philosophers call â€Å"The great conversation†. For example: Think back to the attack on the US of September 11th. These attacks were caused for a variety of reasons, one of which being that the Taliban believed they had the answer as to the correct way to run a society. Therefore â€Å" The Great Conversation† was stopped. After all if I am the Taliban and I believe I have the answer as to how to run a society because I feel I have answered the three big questions, then why keep discussing? Why include anyone else’s opinions and beliefs? Because if you don’t then things could become violent, just as they did in Afghanistan. So you say you don’t want to be like Afghanistan? Well good! So then how do you determine the answer to those three big questions, and what if there is more than one answer? That’s the purpose of philosophy and more specifically â€Å"The Great Conversation†, to come up with the best possible answer to all questions that may arise without eliminating the possibility that a better answer may exist. Take â€Å"Plato’s Cave† for example: People sit in a cave looking at shadows cast on a wall, from the light of a fire behind them. They have been chained to the floor for centuries. They are fed, clothed, and generally stimulated by the shadows, which are those of puppets on a bridge behind them. The people believe the shadows are real. But ponder just for a second; what if you were one of those people? What if you were released from your shackles and allowed to move about the cave freely. How would you explain to the others that the shadows they are seeing are not real people, but actual shadows made by the puppets on the bridge behind them? Would they believe you? Now switch roles. What if... ...t is true?† Once again we deal with two opposite ends of a debate spectrum. We focus on a few things here. One of which is where does knowledge come from? Those who believe that the exercise of reason, rather than experience, authority, or spiritual revelation, provides the primary basis for knowledge are called Rationalists. Basically they believe people have revelations, and are born with knowledge (innate.) On the opposite, those who believe that experience, especially of the senses, is the only source of knowledge are known as Empiricists. Reason versus experience, you decide for yourself. For our last and final study we explore Ontology; the nature of being. Is it human nature to fill your space with material goods? Do they bring you happiness? Is that happiness true happiness? If you answered â€Å"yes† to any of those questions you may be a â€Å"Materialist† while if you answered â€Å"no† to any of those questions, there is a chance you may be an â€Å"Idealist†; someone who believes that the use of ideas, thinking, questioning, and active mental stimulation are far more valuable in terms of achieving happiness than the passive, vegetable style consumption of goods that plagues many of us.

Monday, November 11, 2019

Modern Theatrical Practices Essay

The play ‘Macbethà ¯Ã‚ ¿Ã‚ ½ was written by William Shakespeare in 1606 and is thought to have been written for King James I. The play was found by Shakespeare in ‘The History of Scotland’ and in there it was suggested that Banquo had helped Macbeth in the killing of Duncan but Shakespeare cleverly left this out as King James I was an ancestor of Banquo and the thought of regicide in his family would have killed Shakespeare’s career and most probably, he would have been killed himself. For maximum effect, I believe the best stage for this play would be a proscenium arch. This is so the actors will always be facing the audience and when the apparitions happen, the audience will not be able to see being the gauze and alter which would spoil the effect given. Also the audience’s seat will not go that high up for the same reason. Originally, the audience should react normally to the acting going on, then when Macbeth enters with thunder booming about, and I feel like this should scare the audience to show that something bad is going to happen. Throughout the Apparitions I think the audience should feel a small bit of fear but I expect them to really understand what is happening on stage so the fear cannot be too strong. I believe fear is an important feeling as it symbolizes that something evil is happening on stage. At the same time I want the audience to be excited and on the edge of their seat, wondering what is going to happen next. In this scene Macbeth again visits the witches who he thinks are helping him. The Witches are of course evil characters and don’t have his good at heart. This is a fault of Macbethà ¯Ã‚ ¿Ã‚ ½s, as he doesn’t realize the Witches are evil an thinks he is unbeatable until it is too late and Macduff, with the help of Malcolm, has rallied support to overthrow him. The first time Macbeth meets the Witches they predict that Macbeth will become Thane of Cawdor, King of Scotland and that the children of Banquo will also become kings. These predictions lead to the murders of Duncan and Banquo. This meeting tells Macbeth to ‘Beware Macduffà ¯Ã‚ ¿Ã‚ ½ (IV, i, 70) and leads to the murders of Lady Macduff, her children and the majority of the Macduff castle servants. The witches also lull Macbeth into a false sense of security by telling him that â€Å"†¦for none of woman born shall harm Macbeth† (lines 79-80). Macduff was born by Caesarean section and so ‘isn’tà ¯Ã‚ ¿Ã‚ ½ born of woman. Macbethà ¯Ã‚ ¿Ã‚ ½s security is also lowered when he is told that he is safe until ‘Great Burnham Wood to High Dunsinane Hill† (line 92). Macbeth believes this to e impossible so sees himself as indestructible but this prophecy comes true when the English soldiers carry branches up to the hill to disguise how many of them there actually are. These two lapses in security will lead to the eventual downfall of Macbeth. The scene is described as a ‘miserable place near Forresà ¯Ã‚ ¿Ã‚ ½ (The royal castle of Scotland); Thunder is also described as happening. I think that it is vital to get across the fact that this place is barren and contaminated by immorality due to the company of the witches. I would set this scene in the hours of darkness, there will be fire-torches stuck in the ground providing some dim light to show that it is an isolated area and not a common rest ground for people. Light bulbs will be used, not actual fire as fire may cause a safety hazard. Also Lighting will be coming from behind a gauze, which is hanging towards the back of the stage. This will enhance the effect that the place is evil. The torches on the floor will give the audience the impression of a medieval setting. They will be randomly arranged around the stage to show a mild, or delicate case of the chaos that is linked with the Witches. The gauze will be hung towards the back and no light will be shone behind it until the apparitions, this is so the apparitions can come from behind the gauze so the audience cannot see them coming out of a cauldron for example. Seeing something rising from a cauldron cannot be made to look good in a theatre and may come off as looking tacky. The actual stage itself will be decorated to look like a cave, mould and dirt should be on the stage floor and small boulders scattered over the ground. I think that an actual cauldron would be a bit odd looking seen as nothing will be rising out of it and also a cauldron is slightly pantomime. So instead of a cauldron I think that a large, stone alter, with a large bowl shaped crevice carved into it will be well received. There will be a light bulb in the base of the bowl crevice, which will shine up into the witch’s faces as they move around it. This would create strange shadows; which would make the Witches look physically evil. My Witches don’t actually look evil, only ragged and dirty. This would make more sense to portray them as this as Macbeth does not see the witches as evil so if the looked normal, this could show why Macbeth is tricked by them. The audience would be able to see the evilness of the Witches as well as feel it in their actions. The rock effect would be more natural looking and a fire isn’t necessarily needed as the evil ingredients generate their own heat. The natural look would also mean that it doesn’t have to disappear in a puff of smoke like an iron cauldron would. The three Witches are moving around the rock whilst describing the evil ingredients they are throwing in. They will speak gently, but not essentially evilly. The voices used should be enough to tell the audience that these people are not pure and good. I think that although the witches are fundamentally evil and therefore don’t really need a reason to hate Macbeth it would be original to give them a reason. Macbeth will be wearing his feudal colours when he finds the witches. Two of the witches will be wearing ragged clothing but it will be obvious to the audience that some of this clothing bears the colours of Macbeth, suggesting that these too were once loyal servants to him but due to Macbeth committing an evil act against them, or by an evil such as the one that is corrupting Macbeth now, they have turned. Two of my Witches will be men, enhancing the idea that they were maybe soldiers of Macbeth who were punished by their master and so have decided to oppose him. The third will be wearing clothes that were once very expensive, a dress of a noble lady of the period, torn and ripped by time. She may have been an old love of Macbeth who was dropped by the man and is now bitter. The clothing of the witches will strengthen the atmosphere of evil that is opposing Macbeth; but that it is his own fault that evil has picked him out to be converted. The Witches won’t have evil cackling voices but instead keep normal human voices; showing that there is still some humanity left in them at the same time as showing that humanity can be so easily converted to evil. Once the spell is completed Hecate, the Queen of Witchcraft enters. Expanding the idea that the witches were once subjects of Macbeth I think that Hecate could also be an ex-subject. I however like that idea that Hecate is a ghost like figure of an old woman, maybe an ex queen or his mother, dressed out in normal clothes. She will not be raggedly dressed but instead his clothes will be fresh and clean. I believe she could be his mother and ghost like o show that it could all be his sub-conscience, screening that he really isn’t evil and feels bad about what he did. The three ‘witchesà ¯Ã‚ ¿Ã‚ ½ who accompany her will also be cleanly dressed, wearing the Armour and colours of their lord (they will be men-at-arms, footmen etc†¦). Hecate’s lines are often spoken in a cackling way but this won’t be very appropriate for my Hecate. As she speaks her lines the lord (Hecate) will slowly walk back and forth in front of the Witches. When this small speech is finished a song and dance is described as occurring. Instead of this my three main Witches will get down on one knee and bow to the lord. They will remain like this for several seconds until the lord (Hecate) and his entourage has exited the stage. When Macbeth enters there will be a loud clap of thunder issued in a surround sound bomb followed by the light behind the gauze flashing for a few seconds to simulate lightning. Macbeth will have a faint spotlight of white light will shine on him. The light will not be too strong to show that the good that is left in Macbeth is waning and it will take little persuasion from an evil force to drive him all the way to eternal damnation. The thunder and lighting will alert the audience that something important is happening. When Macbeth speaks he will have a deep, booming voice. Clearly belonging to the higher orders although now and again in his dialogue his voice will wobble and break into that of an underling, like the Stereotypical voice of the witches. His voice will do this when he speaks of murder or of other foul acts he has committed. This means that it will happen mainly after Lennox has informed him of Macduff’s flight to England. This will show the audience that Macbeth would be a strong (Psychologically) man if he could stand up to the handling and dishonesty of the Witches. When the witches speak to Macbeth they will not do so in a dissident manner as they will consider themselves to be his equal, as they know they have power over him. Shakespeare also reveals something by making them speak in blank verse, the manner usually reserved for upper class characters. Possibly the witches really are upper class characters? This is why I have decided to portray the witches as possible subjects of Macbeth. Shortly before the first apparition appears the 3 witches all speak together. I think this (Come high or low: Thyself and office deftly show.) should be spoken softly, inviting Macbeth to ‘follow’ them in the abyss. Then I shall have the stone alter to make an exploding sound and a bolt of lightning should fill the stage up with light. Then I would establish the gauze to its bursting effect. The whole area in front of the gauze would be blacked out apart from the dim spotlight still on Macbeth, as it is he who is being shown the apparition. The light behind the gauze will be a dreary grey/white glow and will appear rather dusty. Then as if from nowhere the first apparition will appear. Really the suit of armor will slowly rise from the ground, the actor get up from the floor, but due to the rock alter obstructing the audiences view, it will look as if it is rising from the altar. The apparition is an armored head. This doesn’t mean that it’s a head with arms. That would be stupid. It is in fact a head with a helmet on. I think that it is hard to actually portray a floating head on stage without special camera effects like in a film. Therefore I will make the ‘armed headà ¯Ã‚ ¿Ã‚ ½ into an actual armored warrior. The helmet will be one that encloses the bearer’s head fully, so hiding the face inside. All the lights in front of the gauze will go out apart from the one in the alter and the light on Macbeth. The helmet may cause the voice of the ‘headà ¯Ã‚ ¿Ã‚ ½ to be muffled so I believe a pre recorded speech by the actor would be better to use in this case, and also it would have a surround sound effect to frighten the crowd maybe. This is to show that what the Witches are doing is evil. I would make my armored warrior wear exactly the same clothes as Macbeth, but he will not notice this. The identical clothing will act as a testament that is Macbeth himself who is causing him to fall from grace. The warrior will chant the word Macbeth louder and louder as he walks around. He will do this once until reaching the point from which he appeared. He will appear to leave but will turn around at the last moment and say, in a deep, booming voice, ‘beware Macduffà ¯Ã‚ ¿Ã‚ ½. He will then go on with ‘Beware the Thane of Fifeà ¯Ã‚ ¿Ã‚ ½ (Macduff’s title) before ordering Macbeth ‘Dismiss me, enough!’ He will be one of the only characters in the play who will speak to Macbeth in such a way and not cause Macbeth to become angry. I think that the strong contrast of the long loud chants and the short booming ‘beware Macduffà ¯Ã‚ ¿Ã‚ ½ will enhance the fact that Macduff is a major enemy of Macbeth and will end up killing him. The contrasting way that the apparition speaks to Macbeth will show the audience that it is Macbeth who is insulting or degrading himself, as the apparition will appear to be Macbeth himself. All the original lights in front of the gauze will come on again and the behind gauze light will slowly fade as the apparition disappears. The second apparition to appear to Macbeth is a bloody child, supposedly coming from a caesarean operation. This will be a difficult apparition to show as I think a baby is a hard member to work with and using an actual baby may be an infringement of human rights. Due to this I think that a child of maybe four or five years will be used. Once again, all the relevant lights will dim and this time a beam of light, hinted with red shall shine on the child who again rises behind the gauze. The high voice of this apparition (a pre-pubescent child) will contrast sharply with the mighty voice of Macbeth and again should be pre recorded, as a really young child cannot be expected to perform in front of that large a crowd. The child should be with his mother on stage and be cuddling the woman. This is so Macbeth has reason to think that no one is of woman born and he is indestructible. The audience should notice that the power of the Witches has caused Macbeth to focus all of his attention on a small child. After Macbeth has heard that ‘none of woman bornà ¯Ã‚ ¿Ã‚ ½ can harm him Macbeth becomes happy as he thinks that he can defeat Macduff and is indestructible. He will turn away from the apparition towards the audience and smile and nod to himself. When the light comes on after this apparition as left the beam on Macbeth will be noticeably dimmer than before, showing that Macbeth has taken another step to eternity in the presence of Beelzebub. Macbeth has decided that Macduff must go, but he hasn’t decided on a time yet. The change in strength of the beam should be subtle but noticeable so that the audience will clearly notice, so only an alert member of the audience will realise the rapid fall of Macbeth. Finally the third apparition appears, for this I would have a projector behind the gauze, which has an animation of the apparition on. I shall have the apparition portrayed as a forest moving over the hills towards Macbethà ¯Ã‚ ¿Ã‚ ½s castle. Amidst the moving forest an army should be able to be just seen, barley noticeable unless you are an alert member of the audience, this is to show that the apparition is actually looking into the future and this is exactly what will happen, and those with previous knowledge of the play should realize this. The apparition will then be spoken, also in a pre recorded voice, but this one should be spoken in Macbethà ¯Ã‚ ¿Ã‚ ½s voice, This will indicate to the audience that it is Macbeth himself who is causing all the corruption and unrest. Macbeth is very happy at what the apparitions have said and fails to notice the many hidden symbols that they bear such as the identical clothing worn by the first apparition and the voice of Macbeth in the third. Only one thing troubles Macbeth now, the idea that it may be the offspring of Banquo who rule the kingdom instead of his own. Macbeth therefore orders the Witches to tell him about this. After he has made the question â€Å"†¦shall Banquo’s issue ever reign in this kingdom?† There will be a pause of about 3 seconds; long enough to alert the audience that something important is about to happen. Thee Witches will turn away from Macbeth and look to the floor before saying â€Å"Seek to know no more†; they know that the images that they must now show Macbeth will not please him, but he has demanded it and although the Witches have infinitely more power than Macbeth they will show him this apparition as they have shown him the apparitions that have pleased him. All of the lights will go out so that the stage is completely dark. Again the projector will be used for this apparition and a bright light will shine on the screen to make the vision stand out. Within the first few seconds of this apparition showing, a King, slightly resembling Banquo will appear on the screen. Then after about ten seconds a sound effect, similar to a camera click effect, will sound and the King will disappear and another King, resembling Banquo a little less will appear, then again the sound effect will sound and another King, resembling less of Banquo but similar to the previous King, to show the audience that they are indeed from the same family, will appear. And so on and so forth until all eight Kings have appeared on the projector. Then a loud boom of thunder in surround sound will echo around the theatre in addition to a lightning flash filling up the stage. The screen will then have all eight kings showing and then a computer character of Banquo will appear in the center of the screen, covering the Kings behind him to enhance the effect of him being there, will start laughing and mocking Macbeth, this will go on for about half a minute then the apparition will disappear. The Witches will now begin to smile and look pleased with their work. They will begin to mock Macbeth with the song they will sing and the first Witch praises Macbeth as a ‘great kingà ¯Ã‚ ¿Ã‚ ½ in a voice of mock worship. Once more the audience will realise that Macbeth has no power over the Witches and how they are the real evil in the play. The Witches dance and vanish (the lights will go out again). When the lights come back on they will be noticeably brighter due to the departure of the Witches, showing that the Witches were really evil. Macbeth will be shouting out his lines while on his knees about how the Witches have abandoned him when Lennox enters accompanied by a messenger who will be muddy and look tired. In his hand he will be carrying a large leather bag. This man will be the messenger that Lennox will inform Macbeth about. Macbeth will still have his dim spotlight on him but Lennox will have a bright light, his uniform/armor will be clean and shining, showing that Lennox has not fallen from grace as Macbeth has. Lennox will inform Macbeth of Macduff who has fled to England to bring back an army. This will lead to Macbethà ¯Ã‚ ¿Ã‚ ½s final soliloquy of this scene. During this Macbeth will speak of his plans to murder Macduff. He will pace around the front stage whilst Lennox walks towards the back of the stage to talk with the messenger so it doesn’t look like that Lennox can actually hear what Macbeth is saying. Macbeth should look flustered and angry, he should look as if he has lost all sanity and means of rational thought, showing the audience that in this one scene Macbeth has gone from a murderer to a madman and is still plummeting to worse things. The spotlight over Macbeth will start to fade until it eventually is put out permanently. This is to show there is no way back for Macbeth now.

Saturday, November 9, 2019

Paper Islam

Paper Islam Paper Islam Caroline McDaniel World Civilization Ms. Reif March 1 2015 Women in Islam The dress code of women in Islam is a very important part of life. A hijab is a veil that covers the head and chest, which is particularly worn by some Muslim women beyond the age of puberty in the presence of adult males outside of their immediate family. Muslim women choose to wear the hijab or other coverings for a variety of reasons. Some women wear the hijab because they believe that God has instructed them to wear it as a means of fulfilling His commandment for modesty (arabsinamerica). Muhammad and the beginning of Islam changed the status of women by issuing new laws based on what was recorded in the Qur’an, which is the holy book for Muslims. The Qur’an gained many more rights for women. A women could refuse a marriage proposal, but cultural and social pressures often forced her to comply with her parents’ wishes. A women could own property, but the only property that she truly owned were the gifts she received from her husband at marriage and her dowry, which was her family money. (Esherick 33). Some quotes from the Qur’an are â€Å"Muhammad taught that women had rights similar to men, but that men were ultimately stronger and had more authority. Muhammad taught that men could admonish their wives, refuse to share a bed with them, and beat them lightly so as not to injure them.† (Qur’an 2:228). (Esherick 48) Muslim societies have required women to cover themselves more modestly than men, covering not only their heads but also most of their bodies and even their faces. Examples of clothing that Islamic women would wear are a burqa, a mask that covers a women’s face. Young girls are not required to cover themselves with a burka. They are required to wear it when they are in public or in a presence of men who are not family members. (Pendergast 77). A chador which is a full – covering shroud worn mostly by rural women. A caftan which is full- length, loose- fitting robe with long slee ves. An Abaya, an outer garment made of tightly fitting cotton gauze, usually back, that covers the entire body and head. It is worn over other clothing. The Jilbab that is a cloak or loose outer garment that covers everything but the eyes. (Esherick 60). Some exceptions to the clothing rules are that Arab women are allowed to wear form- fitting clothing when they are with only their husbands, in their homes, around certain immediate family members, with only believing women, women who follow the same rules, and caring infants or small children

Wednesday, November 6, 2019

Physical Eduaction Essay Example

Physical Eduaction Essay Example Physical Eduaction Essay Physical Eduaction Essay In society’s struggle against the growing obesity epidemic and the rising number of health related illnesses, it is becoming increasingly important to ensure children are being taught the significance of participating in regular physical activity and to also attain an understanding of the different aspects of physical education. Physical education can be defined as the understanding, development and teaching of the sociological, physiological and psychological aspect within sport and physical activity. Physical education helps students develop social skills and understanding which will ultimately enable the student to become a positive member of society. Physical education also allows students to develop their own skills and knowledge of sports and physical activities, which in turn will help promote a healthy, active lifestyle and potentially provide future career opportunities. Physical education has the potential to make significant contributions to the education and development of children and young people in many ways. Physical Education is the main institution for the development of physical skills in children and young people. Educational theorist Telama, has highlighted the idea that schools are the main environment for many children to be physically active, whether it is through physical education programs or after-school activities (Telama et al, 1997). The physiological benefits of Physical Education are well established. Regular participation in physical activities can help lead to a longer and better quality of life, reduced risk from a number of health related diseases and many psychological or emotional problems. Regular physical exercise can reduce the risk of hear disease, type two diabetes and high blood pressure while also helps in the prevention of weight gain and depression or anxiety (Wuest Fisette, 2012). Basic movement skills that are developed through Physical Education programs are the foundations of almost all sporting and physical activities. Booth suggests that ‘there is evidence that those who have developed a strong foundation in fundamental movement skills are more likely to be active, both during childhood and later in life’ (Okely et al, 2001). Motorlogical benefits can also be seen through Physical Education in the form of developing important movement skills, which are needed throughout day-to-day life. Such movement skills include: flexibility, agility, strength, speed and hand-eye coordination. Through a relevant and efficient Physical Education program, students have the potential to develop skills and technique, which may provide possible career pathways later in life. The sociological benefits of Physical Education provide students with the tools to become an active and influential member of society. Physical education theorist, Svoboda states that ‘numerous studies have demonstrated that appropriately structured and presented activities can make a contribution to the development of pro-social behavior’ (Shephard, 1997). Students who participate in physical education have the opportunity to develop important social skills while working in a collaborative environment; this is the fundamental for building and maintaining friendships and relationships through life. Evidence suggests the Physical Education has the potential to bring individuals from a variety of social and economic backgrounds together in a shared interest. This ultimately offers a sense of belonging to a team of club, provides the opportunity to develop values and competencies, and helps develop social networks (Bailey, 2005). Academic benefits and positive behavioral improvements can also be attributed to Physical Education. A study in France during the early 1950’s found that children who participated in regular physical activity showed fewer disciplinary problems and had greater capacity for concentration. In more recent studies, evidence indicates that again these students showed positive behavioral improvements are now also showing improvements in academic performance (Shephard, 1997). In addition to the physiological and sociological benefits of Physical Education, students can also psychologically benefits from regular physical activity. Wuest and Fisette suggest that ‘participation in exercise promotes positive thought and feelings. These serve to counteract negative thoughts and feelings as well as mood states associated with depression and anxiety’ (Wuest Fisette, 2012). Psychological benefits of participating in physical activity include: a reduced state of anxiety, improved mood and emotions, alleviating symptoms associated with mild depression and an improvement towards social interactions and relationships. A positive relationship between exercise and psychological states is clearly evident, with various research showing different explanations on how this relationship occurs. Physical Education is an imperative foundation in the development of all students. Physical Education provides the social and physiological constructs on how to not only become an active, connected member of society, but how to also lead a healthy and active life while reducing the risk of serious illnesses. Furthermore, in reducing the likelihood of developing mental illnesses such as depression and anxiety. Physical Education also carries significant psychological benefits. Physical Education has the potential to make substantial contributions to the education, development and wellbeing of all students. In each area discussed; physiological, sociological and psychological, there is evidence that proves Physical Education can have a positive and profound effect. Reference: Bailey, R, (2005), Evaluating the relationship between physical education, sport and social inclusion, Educational Review, pp. 71-90. Okely, A. , Booth, M. , Patterson, J., (2001), Relationship of physical activity to fundamental movement skills among adolescents, Medicine Science Sport Exercise, pp 1899 – 1904. Shephard, R. , and Trudeau, F. , (1997), Physical Education, School Physical activity, school sports and academic performance, Pediatric Exercise Science, pp 113 -126. Telama, R. , Yang, X. , Laakso, L. , and Viikari, J, (1997), Physical activity in childhood and adolescence as predictor of physical activity in young adulthood, Journal of Shool Health, pp 317 – 323. Wuest, D. A, and Fisette, J. L, (2012), Foundation of Physical Education, Exercise Science and Sports, 18th ed, McGraw-Hill, New York.

Monday, November 4, 2019

The Presence of Stereotyping in Western News Media Essay

The Presence of Stereotyping in Western News Media - Essay Example The Chambers English Dictionary defines making a stereotype of a person as characterising or categorising too readily or simplistically. In the field of Psychology, stereotypical thinking is identified as a vehicle for prejudice, and is defined more precisely as being comprised of the processes of condensation and displacement. Condensation is the outcome of fusing a number of images or ideas to make a single composite. It is this that tends to be typically either simplistic or something entirely unrelated. By displacement is meant, â€Å"feelings of hostility or anger are directed against objects that are not the real origin of those feelings†. Stereotypes thus highlight contrasts between the stereotyping and stereotyped groups, and serve to perceive what is being stereotyped as the ‘other’. Stereotyping in the media occurs most frequently when news is to be covered pertaining to a foreign culture, race or religion, or a society about which little is known.

Saturday, November 2, 2019

Best Practices in Teaching Comprehension Essay Example | Topics and Well Written Essays - 750 words

Best Practices in Teaching Comprehension - Essay Example The underlying mechanisms by which comprehension and knowledge acquisition occur are 'top-bottom' and 'bottom-up' technologies. Bottom-up or data driven activation of schema occurs when information on the page activates a certain low level schemata or feature detectors which in turn activate or instantiate a higher up sub schema or other higher up structure. In that processing manner,information enters into the perceptual system from the most specific feature at the bottom and travels upward to the most general structure in the system. On the other hand,conceptual driven activation occurs when the highest and most abstract structure at the top of the system sends down information through the hierarchy of structures till it reaches the lowest structure or the feature detector. This processing flow of information in a top-down manner is brought to account for incoming data and to comprehend it as a correct interpretation of the input. Both types of mechanisms work in both directions. The process of understanding discourse is the process of finding a configuration that offers an adequate account of the passage in question. Clues from the passage suggest possible interpretations (instantiation of schemata) that are then evaluated against the successive sentences of the passage until finally a consistent interpretation is discovered. The scenario of the passage is an information network called from the long-term memory by a particular linguistic input which is a basic principle of enabling the knowledge of the reader to be used in such a way as to allow for direct interpretation of entities or events predicted by his knowledge. To the extent that any text conforms to the predictions it is readily interpreted,if not,it will be more difficult to understand. Reading is a far more creative activity than most think with information in the text better regarded as evidence or even building blocks from which readers construct their own meanings and often their entire experiences. There are four theories for the failure of a reader to understand correctly a written passage: 1-The reader may not have the appropriate schemata,i.e,cannot understand the concept being communicated. 2-The reader may have the appropriate schemata but the clues provided by the author may be insufficient to suggest them. 3-The reader may find a consistent interpretation of the text but may not find the one intended by the author. In such case,the reader will 'understand' the text but will misunderstand the author. 4-The reader may have the appropriate schemata and that the writer may have provided sufficient clues in the text but the reader has not learned how to decode clues in a text. The ways to decode such difficulties is by understanding the following: a-Rationale of the mode: In seeking to study the role of background knowledge or schema, Carrel and Eisterhold draw the useful distinction between two types of schemata:content schemata represent background knowledge about the content area or the topic of a text whereas formal schemata represent background expectations about the rhetorical structure of a text. Carrell(1983) found out that the role of either content or formal schemata or