Advantages And Disadvantages Of Mechanical Joining Engineering Essay

Advantages And Disadvantages Of Mechanical Joining Engineering Essay Mechanical joining is the part method to joint components together, which mechanical joining is accomplished have expanded, the number of joints produced continuous to grow and the performance demands and expectations are becoming greater. The joining process can remain the prolific, pervasive, and important of joining process. There has two type of this process such as mechanical fastening and integral mechanical attachment, or simply integral attachment. Mechanical joining involves the attachments of components in an assembly or elements in structure through the either an integral of the components or elements or use of the supplement device called a fastener, which resulting in integral mechanical attachment and mechanical fastening. Mechanical joining is used joining or install structure from details parts and structural elements. For the both manifestations of mechanical joining, load are transferred from one component or element to another strictly through the development of pu rely mechanical forces rising from the interlocking and resulting interferences or vice versa of two or more components or components and fasteners. There are no dependences on the development of any primarily or secondary atomic, ionic, or molecular bonds between the components materials. Mechanical is the components to fabricated from different materials to be joint, There is no has for chemical and physical interaction. If the interaction occurs when seen as problematic such as galvanic corrosion or galling and seizing during adhesive wear. Mechanical joining is used to create assemblies or structures from detailed parts or structural elements. Mechanical joining offers many advantages compare to other fundamental joining process. The first advantages of mechanical joining is this process unique in that is primarily dependent on the structures to be joined, and only dependent on the materials which these structures are composed. No bonds need to be formed to accomplish joining, nor do any need to be broken to accomplish disassembly. Where, mechanical joining methods or technique uniquely allow simple practical disassembly without damaging the parts involved. The second advantages is uniquely allows intentional disassembly without damaging parts involved. Where, this is very frequently essential for the purpose of portability, maintenance, services replacements, of damages parts, modification, of the assembly or structures. The third advantage is no bonds formed. Where, is the most form of mechanical fastening and some form of integral attachment permit relative intentional motion between joined parts. The fourth advantage i s mechanical joining may no changes to the chemical composition or microstructures the materials compare the parts being joined. Where, this is because the forces needed to hold the joint components together. And no atomic à ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬level bonding are created and no chemical interaction. The fifth advantage is this joining allows the different materials to be joined together such as metal to glass, and metal to polymers. The sixth advantage is provides a simple of achieving of structural damage tolerance beyond inherent material damage tolerance. Mechanical joining also has disadvantages such as, all mechanical joining fastening and integral attachment is that stress concentrates at the point of fastening or attachment. For example of fastener requiring hole is screw, key, bolt, rivet and pin. The hole can create the stress concentration unless the fastener is interference is specially process to create a compressive residual stress to offset tension stress. For other type is virtually all integral attachment, stress concentrates at the point of attachment. Stress concentration is particular concern in fatigue critical structure, but it can more aggravate accelerate corrosion. The second disadvantages of mechanical joining is mechanical joining related to above mentioned stress concentration is that the utility of mechanical joining. Stress concentration can lead to fastener hole or attachment feature distortion and loss of effectiveness. The utility of mechanical joining can be limited by materials anisotropy, particularly i f that anisotropy leads to weakness through the fastening thickness, as in most laminated composites. The result can be fastener pull through or pull out. The third disadvantages of mechanical joining can be the open nature of the joint between points of fastening, around fasteners and between points of attachment. Such as joint allows moisture, water, air, fluid intrusion, permits leaks, and can accelerate corrosion in the oxygen starved crevice and dissimilar electrochemical nature of the joined materials or any residual stresses. For example, the ever present stress concentration. Other disadvantage of mechanical fastening is more intensity for assembly can be high, especially for high performance system. There can also be a weight when compare to integrally attached as welding, brazing and soldering. The joining can loosen in service as a result of vibration. Most cost or other process can be higher for some integral attachment method. It also can experience loosening and disass embly from flexing especially during impact from dropping, or material stress relaxation. As stated earlier, most joint are critical element of assembly and structure. They can be the weakest links in some assemblies or structures, thereby being the most likely areas of an assembly and structure to fail. Therefore, joints demand careful design for all forms of joining, including mechanical fastening and integral attachment. The most important aspects of the design joints is identifying the sources and estimating the magnitudes and directions of applied internally generated loads. The sources of loads can be weight or force, example from snow, water, wind, or other parts of the structure. The forces from interacting structures, internal inertial forces, vibrations, transients, especially from startups, shutdowns, and faults, temperature changes or thermal excursions, fluid pressures, prime movers. The joint element is held together by shear in the fastener and the bearing force or stress in the joint elements created by the fastener. For example of fastener properly used f or bearing-type shear-loaded joints are nails, rivets, pins, and key. When these joint is operating properly, the frictional force developed precludes the fastener from having to carry and apply a bearing force by not allowing slip of the joint element. Bolt can be used for joining such as a rivet is used on occasion. Because of the mechanical fastener is a stress and develop a stress concentration in the joint element. Mechanical fastener also relative to one another help distribute loading and also to edge of the joint elements. Shear loaded types of joints and fasteners being described here, and for tension loaded types of joints and fasteners to be described in the next subsection. Bearing force is imposed by this type of fastener hole and plastic deformation of the material surrounding the hole on opposing structure elements. The bearing force also tear and slugs of material from the join element. This can occur under static loading and the situation can be even worse for dynam ic loading by impact fatigue. Mechanical joining is used to joining or install of structure from details parts and structural elements. For the both manifestations of mechanical joining, load are transferred from one component and also the element to another the development of purely mechanical forces and rising from the interlocking, and result can more components and fasteners. There are no dependences on the development of any primarily or secondary atomic, ionic, or molecular bonds between the components materials. Mechanical allows components fabricated from different materials to be joined, since there is no need for chemical or physical interaction. If the interaction occurs it is usually seen as problematic such as galvanic corrosion or galling and seizing during adhesive wear. The procedure for design shear loaded fastened joint is the allowable stress design procedure. This procedure can be more fasteners are assumed to carry on equal share of the applied force and load. This procedure also is only truly valid for joint that are composed of perfectly material, which is not real case and at least valid for joint containing multiple row of fasteners. This procedure is generally accepted and is perfectly safe when conservative allowable are used, such as the result of imprecise analysis. Shared loading also depend on all fastener being same size and material. Shared loading also has fitting with equal tightness in fastener hole. Empirical used to determine the maximum working stress that can be allowed in the fastener. Under the stress design procedure for bearing type shear loaded joints, the various elements of the joint such as including structural members and fasteners and must be sized so that the following conditions are satisfied, the fasteners can be not damage in shear by overload, the joint plate can be not damage in tension by overload, the fastener holes cannot be deformed by bearing loads from the fasteners, and the fasteners will not tear out of the joint plates at edges. These various modes of potential failure are shown schematically. None of these modes will occur if the appropriate allowable stresses are not exceeded in the fastener, for example shear. The advantage of the allowable stress design procedure is not precludes failure under any conditions such as although it does so under normal operating condition, but that it allows the designer to choose the mode by which the structure would ultimately damage. This procedure allows the designer to choose the low joining in the structure. The double-lap shear is composed of ASTM A36 steel, contain five 22 diameter ASTM A325 steel bolts arranged as shown although the specific pattern does not matter for symmetrical loading, the bolts have a thread pitch of 2mm per thread or, in the Unified system. Shear plates in the double lap joint the unthreaded portion and one passes through the threaded portion of each bolt. The problem is to determine the various stresses produced in the fastener and in the joint plates by a load of 300kN (67,000 lbs. force). The shear stress produced in a fastener given load depend on the actual cross sectional area of the fastener, and this is affected by whether the fastener is threaded and unthreaded in the region through which a shear plane in the joint elements passes. For example, the shear stress where F is the force in kilo Newtonà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬Ãƒ ¢Ã¢â‚¬Å¾Ã‚ ¢s (or lbs. force), b is the number of shear planes that actually pass through the unthreaded fastener or portion of the shank of a fastener. Joint is critical elements of assemblies and structures. They can be weakest link in some assemblies or structures, thereby being the most likely areas of an assembly or structure to damage or low joining parts. Joints demand careful design for all forms of joining, including mechanical fastening or integral attachment. The most important aspects of the design of all joints is identifying the sources and estimating the magnitudes and directions of applied and internally generated loads. The loads also can be static, for example for steady or unchanging and dynamic in combination. The sources of loads can be weights or forces as from snow, water, wind, or other parts of the structure. The forces from interacting structures, internal inertial forces, vibrations, and transients especially from startup, shutdown, and the temperature can be changes in thermal excursions, fluid pressures, prime movers. The joint element is shear in the fastener and the bearing force. Stress also created by the fastener. The examples of fasteners properly used for bearing type shear loaded joints such as nails, rivets, pins, and keys . In friction shear loaded joints, the fasteners must create a significant amount of clamping force on the joint, holding the joint elements together and prevent any motion and slip. The resulting friction created between the joint and the result of their coefficient of friction and applied normal force. When these joints are operating properly, the frictional force developed precludes the fastener from having to carry and apply a bearing force by not allowing slip of the joint elements. Only bolts can be properly used for such joints, certain rivets are used on occasion. The shear stress in bearing type connections is related to the arrangement of the pieces or structural elements comprising the joint. The advantages of single-laps are ease of assembly and cost, and the advantages of double laps are elimination of eccentric loading and reduction of shear stresses at each of the multiple shear planes in the fastener in bearing type joints. Finally, the designer must ensure that fasteners will not tear out of the joint plate. This can only occur if the fasteners are located so close to the edge of the plate that the shear stress developed by bearing exceeds the ability of the plate material to sustain that stress over all shear planes from the fasteners to the edge. In fact, tear out cannot occur if there are multiple rows of fasteners, given sharing of load by all fasteners. This is because a slug of material near the edge could not tear out if the strain to elongation at the fastener holes, because by bearing did not exceed the strain needed to cause shear overload over all the aforementioned planes. In this illustrative example there are multiple rows of fasteners, so tear out could not occur and the holes on the second and third rows from the edge would have to elongate in bearing by enough to cause tear out of slugs between the first row and the edge. If there were three bolts in a row, there would be six shear planes such as on areas to cause tear out. For friction joint, the design analysis is slightly different than for bearing type joint. Friction joint also the intent to have an appropriate fastener, for example a bolt or machine screw or, sand rivet to apply a clamping load high enough to cause sufficient frictional force to applied the load, The fastener is protect from ever having to carry shear or cause bearing. The necessary slip resistances, as the frictional force to apply in this way is called, depend on greatly of the surface conditions of the structural joint element materials at their joint faying interface. Typical slip coefficients of friction can be found. V alues can be seen to be highly dependent on the treatment and condition of the joint surfaces, which must be carefully stipulated and controlled for such friction-type joints to work reliably. For example, surfaces cannot be painted unless painting is called for and an approved paint is used. No lubricants can ever be used if not planned for at the design stage. One even needs to worry about water infiltration in such joints, since water acts as a lubricant and drastically lowers the slip coefficient of a joint consider being dry during operational service. The ultimate strength of a friction type joint is considered to be the low of resistance or bearing strength. The bearing strength is more strong by using the same equations as in IE 2.2, except that one would enter the related stress for each material used in the joint plates and fasteners and apply the force that would be required to produce a stress to cause shear overload in the fasteners, tensile overload in joint plates, el ongation such as in bearing overload and can be fastener holes in every part joint plates, or fastener tear-out from the joint plate near its edge. The low force is then compared the force to cause slip because to earlier for an assumed value of average fastener joint preload. The lower of these determines the ultimate load-carrying capacity of the friction-type joint. Mechanical allows components fabricated from different materials to be joined, since there is no need for chemical or physical interaction. If the interaction occurs it is usually seen as problematic such as galvanic corrosion or galling and seizing during adhesive wear. Mechanical joining is used to create assemblies or structures from detailed parts or structural elements. Mechanical joining, load are transferred from one component or element to another strictly through the development of purely mechanical forces rising from the interlocking and resulting interferences or vice versa of two or more components or components and fasteners. There are no dependences on the development of any primarily or secondary bonds between the components materials. Mechanical joining is actually processing in a locking feature plastic deformation. Such joints can only be employed with materials that exhibit plastic deformation, yet still retain their strength or mechanical integrity. Ductile metals and thermoplastic polymers are the two example such as formed in folded tabs, crimps, hems, and punched stakes are good example in metals, and crimps, hems, and punched or heat set stakes are example in thermoplastic polymers. Mechanical joining is allows parts to assemb ly to move relative to one another to provide needed system functionality, while maintaining part arrangement, proximity, and orientation. The process causes no chemical and microstructure will be changes in the material being joined, so dissimilar types can be combine easily, and all can be intentionally disassembled to allow maintenance, service, repair, upgrade, ultimate disposal, or portability The joining parts assemblies and a structure element is joining in structures mechanical joining, which involves two major subclasses of mechanical fastening and integral in mechanical attachment. Mechanical joining is to attachment of components in an assembly to use of either an integral feature is used the part to install the supplemental device called a fastener resulting in integral mechanical attachment and mechanical fastening, respectively. Mechanical joining is a load to transfer from one parts or element to another strictly and the development of purely mechanical forces arising from the interlocking and resulting interference of two or more components, or component and fastener. Mechanical is the components to fabricated from different materials to be joint, There is no has for chemical and physical interaction. If the interaction occurs when seen as problematic such as galvanic corrosion or galling and seizing during adhesive wear. Mechanical joining is used to create assemblies or structures from detailed parts or structural elements.Mechanical joining has been critical to engineering such as in manufacturing, structure, and also in construction. Mechanical joining is very important because the result more fastener from other process. Mechanical joining has more advantages. The detailed methods by which mechanical joining is accomplished have expanded, the number of joints produced continues to grow, and the performance demands and expectations are becoming greater.

John Dalton :: essays research papers

John Dalton Around September 2, 1766 John Dalton was born. He was born in Eaglesfield, England. Dalton was most known for the development of the modern atomic theory. Dalton was taught at his early ages of learning by his father and a Quaker teacher whom in 1778 Dalton would replace him after he retired. He quit that job and left his village to work with his cousin in Kendal, but he stayed a teacher. In 1793 he moved to Manchester, this is where he would remain the rest of his life. Dalton was influenced greatly by the mathematician John Gough. Dalton while in Manchester became the teacher of math and philosophy at a college. He taught there until 1799. Dalton became a chemist and physicist after his teaching jobs. Dalton did a lot of experimenting but did not test his experiments to make sure they were right. A good amount of his experiments were later proven to not be true. But his most famous theory "Dalton law" the modern atomic theory was proved true. John Dalton also published a lot of papers on atoms. His most famous article was on "absorption of gases by water and other liquids," this article contained his atomic theory. Dalton was the first person to develop a scientific atom theory, the ancient Greeks had ideas about the atom but could not prove it scientifically. Antoine Lavoisier and Dalton are responsible for the discovery of 90 natural elements. Dalton also explained the variations of water vapor in the atmosphere, the base of meteorology. Dalton’s atomic theory says that each element contained its own number of atoms. Each element had its own size and weight. Dalton’s idea said that all things are made of small bits of matter this bits of matter where too small to be seen even with a microscope. Scientist began to think these small bits of matter where responsible for chemical changes. They thought that when these bits of matter combined a chemical change took place. Dalton assumed that there was a special pattern in the elements and was partly responsible for the periodic table. Dalton in 1787 started to keep a journal. In Dalton’s journal he wrote about more than two hundred thousand observations. In 1793 he wrote a book about Meteorological observations. Dalton went to Paris in 1822 to discuss his theories with the other men of science in that time period.

Justification for Using Atomic Bombs on Hiroshima and Nagasaki Essay

On August 6, 1945 an American B-29 bomber named the Enola Gay dropped an atomic bomb on the Japanese city of Hiroshima. This was the first use of nuclear weapons in the history of human warfare and almost the last. Many people debate whether using nuclear weapons was a moral choice. I believe it was moral. Though many people died from the bomb, the amount of good that came from dropping it greatly outweighs the bad. A large issue that's brought up around the atomic bombings is the amount of people that were killed because of it. The total killed was 70,000 to 80,000 people initially and approximately 90,000 to 140,000 by the end of 1945. Though this number is catastrophic on it's own, it's relatively small comparatively. For example, when added with the number of people killed in the Nagasaki bombing (45,000) it comes to around 125,000 people killed in the first two blasts. Compare this with two firebombing raids over Tokyo, one raid killed about 125,000 people, the other nearly 100,000. That's approximately 125,000 killed with the atom bombs and 225,000 killed with normal...

Ethics, values, and social responsibility Essay

In the finance field there are a number of ethical issues although many issues in this field are governed by law. Ethical issues in finance include individual conduct, financial institution operations and financial markets operations. In this field people are trained to perform different duties and thus finance ethics is diversified. However, the top five issues in this field include honesty and fairness, fraud, conflicts of interest, discrimination and information technology. Honesty and fairness in this field has raised much dispute. Because of the intense competition in the world, many people view the conditions in a business to be similar to those in a game of sport or war and thus anything is considered to be fair. On the other hand there are those who argue that not everything is considered to be honest and fair. This has therefore led to ethical issues in this field regarding what is ‘honest and fair’ and what is not. Conflicts of interest is mainly observed in situations where an individual is placed in a position of making a decision on whether to pursue personal interests or the interests of other individuals or business. Similar, it can involve an organization making a choice on whether to pursue own interests or the interest of the society. The issue concerning fraud primarily entails the disclosure of valuable information which is vitally important for security. It also involves misrepresentation of material evidence intentionally. There are several types of fraud and this may include; accounting, marketing and consumer fraud. Discrimination is an ethical issue which can involve an individual or a business. Some individuals or businesses abuse others by enticing them and exploiting them. In addition to that it may include issues regarding race, gender among others. To add to that there are some cases which involve price discrimination. In information technology, the issue entails the privacy and confidentiality of information on matters concerning the employees and consumers. Privacy and confidentiality is essential in this field however there may be some cases where it is not ensured. This has therefore led to ethical issues concerning what is privacy. In addition to that there are ethical issues which involve protection of intellectual property. Ranking The top five issues can be arranged in descending order as honest and fairness, conflict of interest, fraud, discrimination and information technology (College of Micronesia, n. d. ). Honesty and fairness are major issues since they affect all levels of an organization, and are much experienced by society. Furthermore, controlling this issue other issues will be taken care of. For instance, an organization which is honest and fair, issues concerning fraud, discrimination, conflict of interest and information technology are minimal. Analysis Honesty and fairness In the financial market fairness is taken to mean a level playing field for everyone. However, in most cases the playing field is unleveled and this can be attributed to issues concerning inequalities in the bargaining power, possession of information, resources available, among others. Inequalities in the bargaining power and resources are considered to be ethical only when used coercively and violate rights and obligations (Frederick, 2002). This implies that individuals or organization are only allowed to use their advantages in ways that are considered fair to others. Additionally, individuals can use their resources to acquire information which they are entitled to exploit to their advantage. This has made access to information an issue of investment thereby leading to inaccessibility to critical information by some individuals. To acquire information individual must invest adequate resources. Ethical issues arise over accessibility of information, how the information should be distributed to ensure equality. Fraud In sales concerning financial products like insurance policies, loans, mutual funds among others, application of ethical standards is a requirement. Hence businesses are given the mandate to ensure adequate material information is available. There are regulatory agencies which monitor prospectus for mutual funds, however, personal sales and advertisements can contain false or misleading information (Frederick, 2002). Additionally, this is an issue which has been observed in the stock market and in many businesses. Some individuals conceal valuable information to lure more customers to their businesses. For instance, in the stock market assets of a particular organization may be inflated or some of its liabilities may be concealed. This issue has led to large losses in many investment companies and to individuals (Frederick, 2002). Since assessing the risk and suitability for an investment has been made difficult with inadequate material information. Conflict of interest This is issue which is primarily observed in agents, fiduciaries and financial managers, in which the personal interest interferes with the interests of the organization or society. Agents and fiduciaries are given the mandate to act on behalf of others in exercising judgment, however, in cases where they stand to gain personally their judgments may be compromised. Additionally, financial managers are given the mandate to manage assets prudently and thus avoid using them for personal gains however, in some cases conflict of interest might occur. For instance, management buyouts whereby a group of managers take a public organization to be private are an ethical issue. This issue occurs mainly since the actions to be performed by an individual are not fully specified before the transaction and thus an individual is given a wide range of options. In addition to that they are not closely monitored and evaluated. This has led to huge losses being incurred by individuals and companies. For instance, some banks have collapse and this was attributed to rogue traders (Frederick, 2002). Discrimination This issue observed mainly in financial products and it involves abusive practices of selling such as flipping and twisting. In flipping one loan is replaced by another for generation of additional fees. While in twisting, insurance agents persuade their clients to replace the existing policy in order to get commission (Frederick, 2002). Some financial institution abuse poor individuals by offering them loans of high interest and by adding little values to lure them. Furthermore, in some institutions there are cases of discrimination in employment on matters concerning race and gender. Information technology Maintaining privacy and confidentiality of information in many business has been difficult because of the cost of technology. As technology advances it becomes more expensive to ensure privacy of employees’ and clients’ information. Furthermore, with the increase in number of people of accessing the internet maintaining privacy and confidentiality has become difficult. This has therefore led to loss of confident by the public since they cannot trust some organizations to protect their personal information. Solutions and recommendations The issue of conflict of interests can be addressed by closely monitoring individuals and by changing the structure of the relationship. For instance, the commissions can be focused mainly on performance of the client’s portfolios and not on the volumes of sales. Additionally, professionalism, trust and codes of ethics should be strongly emphasized in relationships in order to guarantee the confidence from the society. Fraud and discrimination issues can be solved in courts. There are laws which were put in place in place to protect people against abuse or discrimination. For instance, the Employment Act protects employees against discrimination and harassment. Furthermore, the pre-dispute arbitration agreement should be amended or individuals should avoid it. This agreement may have several advantages but denies adequate protection to investors. Maintaining privacy and confidentiality of clients’ and employees’ information require much funding. It is essential for organizations to invest more funds in acquiring knowledge and skills concerning privacy and confidentiality in the information technology. By ensuring privacy and confidentiality, public confidence will be build. Social responsibility is essential for ensuring ethical standards are maintained in the society. When making decisions, people should consider their effects to the society and to themselves. This will ensure that ethical issues are maintained. Additionally, since businesses cannot be trusted to maintain ethical standards, some laws have been passed to ensure social responsibility. For instance there are laws concerning consumer safety and environment protection. This is a step forward in ensuring ethical standards. Furthermore, there are some financial institutions which have developed and implemented strict policies that ensure ethical standards are adhered. For instance there are policies concerning privacy and confidentiality of employees’ and customers’ information. In conclusion, maintenance of ethical standards should not be the responsibility of an individual or an organization but should involve the whole society. By maintaining ethical standards the society and organizations will be protected from any harm and at the same time eliminate conflict. Even though ethical standards vary from one society to another, they should be understood and maintained adequately. Reference list College of Micronesia, (n. d. ). Code of Ethics. Retrieved June 18, 2009 from http://www. comfsm. fm/~dleeling/alo/personnel/code_of_ethics. html Frederick R. (2002). A companion to business ethics. Edition: 1. New York: Wiley-Blackwell. pp. 154-59.

Demonstrative Communication Paper Essay

Demonstrative communication consists of accepting and sending messages that can be silent; this can help give attention for the start of verbal communication even though a non verbal communication can transmit the message all by itself. An example of this would be facial expressions, which can be used to express most non verbal communications. According to Nayab body language along with facial expressions represent 55% of all communication. With demonstrative communication it can highlight the verbal communication for instance appropriately dressed, a nice firm handshake and conducting oneself in a professional manner while on employment interviews. Another example would be when two people meet for the first time; demonstrative communication can either show that the other person is either friendly or unpleasant by just saying the word hello. The facial expression of a smile can demonstrate whether the person is in good spirits and have a friendly personality. A good way to figure this out without the verbal communication would be the smile and other gestures through the nonverbal communication of the other person. An example of this would be a two people doing business together and when they meet for the first time and both business men smile at each other. This would be a nonverbal communication. The way that a person’s personality is shown is through their nonverbal communication. Demonstrative communication can go both ways in being effective and negative. There are many different facts that play into the nonverbal communication, like the clothes that people wear, their tattoos and possibly their hairstyles. Although these types of communications are nonverbal it does make some people a little uneasy about how they handle their business with someone with this type of communication. It does not matter what the tattoo is of. It can be misunderstood by the person that is viewing the symbol and the person with the tattoo will be labeled as a thug or someone that you should not do business with. That is why body language and facial  expressions can be very important when it comes to demonstrative communication. An example of body language that can be misunderstood would be when two people are talking and one person has their arms folded across their chest. This can be perceived as the person not listening or being considered overprotective of themselves and will not take criticism lightly. The person with the folded arms could just be cold or it is a learned gesture from their parents and that is how they listen. This is why many people would agree that demonstrative communication should not only have the nonverbal but also the verbal to go along with it so that people do not have any misunderstandings and the issue can be handled properly. According to Sutton, a person cannot fully deliver the anecdote of the day to anyone lacking words, except if the person can mime the entire tale (Sutton, 2011). Even if the person is able to mime they cannot express the entire issue perfectly. There has to be some degree of distance. This type of communication cannot always be expressed perfectly. An example of this would be that a person cannot convey the nonverbal communication over the phone and the person on the other end only has the verbal part of the communication and might take something the wrong way because they are not able to see the nonverbal part of the communication and that is where misunderstandings come in. Just like all other types of communication demonstrative communication requires listening and responding. It has been said time and time again that people receive more knowledge from someone’s actions more than their words. There are times when a person needs to listen not only with their ears but also with their eyes. An example of this would be when a new student has to get up in front of the class and introduce themselves, at first the new student may roll their eyes like so many do because they already know that it is hard enough to start school as the new kid but to have to stand up in front of everyone makes things even more intense. So the other kids have seen the new student roll their eyes but they also have to listen to what is being said because the action was just an annoyance for having to stand up in front of everyone. It is important to remember to listen as well as taking in the scene of what is going on around them. Both the verbal and nonverbal communication will create the listening and response aspect of the  communication. In today’s world all around us there are people unknowingly using demonstrative communication. Just by smiling at their neighbor or waving at someone they are using demonstrative communication. Even though this communication can be misinterpreted or misunderstood it is still wise to try and listen to see if there is anything that the person is also saying. References: ReferencesCheesebro, T., O’Connor, L., & Rios, F. (2010). Communicating in the workplace . Upper Saddle River, NJ: Prentice Hall. Nayab, N. (2010, July 26). Different types of communication . Retrieved from http://www.brighthub.com/office/project-management/articles/79297.aspxSutton, N. (2011, March 26). Pros and cons of nonverbal communication.

Indigenous Religions and Their Sacred Reverence Toward Nature

Indigenous Religions and their Sacred Reverence Toward Nature Kimberly Kitterman Barstow Community College Abstract Many indigenous religions and cultures viewed the earth with great respect and reverence. This can be seen through their kinship with the land, their belief in animism, their hunter/hunted relationship, and their origin stories. Indigenous Religions and their Sacred Reverence Toward Nature Most indigenous cultures had a profound respect for their environment.They believed that their relationship with nature was very sacred, they believed the earth needed to be treated with dignity and reverence, they believed in harmony with their surroundings. Speaking of indigenous religions, Lewis (1995) wrote, They defined themselves by the land, by the sacred places that bounded and shaped their world. They recognized a unity in their physical and spiritual universes, the union of natural and supernatural. Their origin cycles, oral traditions, and cosmologies connected them with al l animate and inanimate beings, past and present. p. 423) Molly wrote, â€Å"Environmentalist David Suzuki argues that we must look to native peoples and religions for insightful lessons in the relationship between human beings and nature. † (2005, p. 39) Native religions had a much different view of the world than we had today, and that view can be seen in the way they lived, their religious ceremonies, and even in the things they take from nature. We should begin our discussion of indigenous religions by defining what one is.The term indigenous refers to a culture that originated in a certain area. Indigenous can be used interchangeably with words such as native, oral, primal, tribal, traditional, and aboriginal. These cultures can be found anywhere in the world, in every climate and every type of environment. Different from global religions like Christianity and Islam, each of these religions were formed in isolation from everything else, causing huge variations in languag e, beliefs, customs, traditions, myths, and origin stories. (Molly, 2005)In his book Experiencing the World's Religions, Michael Molloy wrote, â€Å"Most indigenous religions have sprung from tribal cultures of small numbers, whose survival has required a cautious and respectful relationship with nature. In the worldview of these religions, human beings are very much a part of nature. † (2005, p. 41) Many of these cultures view nature as a living breathing entity, and something that deserves respect and love. Many feel a kinship with nature, believing that we came from the environment and will someday return to the environment.Some even believe the animals to be their brothers and sisters – that each living thing was created of the same substance and came from the same earth. The Mayan text Popol Vuh, Taylor (2005) wrote, tells of an origin story of an previous group: An origin myth in which an earlier race of humans were destroyed for the disregard they showed animals and inanimate objects cautions people to respect the natural world, while humans' relationship of dependence on a Creator who is embodied in the unity of sky and Earth reinforces the sacredness of the world. (p. 34) This quote shows just how seriously the native cultures treated nature. Their respect was so great, that cautionary tales of what can happen if you don't have that respect even became a part of their origin stories. A notable belief that is common among many tribal cultures is the belief of â€Å"animism. † Molloy defined animism as coming from the Latin word anima meaning â€Å"life force† or â€Å"spirit. † He continued that animism is a worldview common among indigenous religions that believes all of nature has a spirit, or is filled with spirits (2005, p. 41).Forbes wrote that animism can also be known as â€Å"life-ism,† and â€Å"it is true that most or perhaps all Native Americans see the entire universe as being alive – that i s, as having movement and an ability to act. † (2001, p. 284) This belief of animism is a major contributing factor in indigenous religions sacred relationship with nature. Molly related an experience with four Oglala Sioux shamans: â€Å"When asked about what was wakan (â€Å"holy,† â€Å"mysterious†), said, ‘Every object in the world has a spirit and that spirit is wakan. Thus the spirit[s] of the tree or things of that kind, while not like the spirit of man, are also wakan. † (2005, p. 41) Believing that each tree has a spirit, each animal is a brother or sister, each rock and hill has a life force would alter your perception of the world. Your feelings toward those things might be changed a bit, knowing that they have as much life in them as you do. Black Elk, a Native American, said, † We should understand well that all things are the works of the Great Spirit. We should know that He is within all things: the trees, the grasses, the rivers , the mountains, and all the four-legged animals, and the winged peoples. (Goffman, 2005) Whether a tribal culture believed in a Great Spirit, or Mother Earth, or felt that a certain tree held a powerful spirit, many of the native religions worshiped the earth and held it in a highly sacred regard. â€Å"To say that nature is full of spirits can be a way of affirming the presence of both a universal life force and an essential, underlying sacredness. † (Molly, 2005, p. 41) Molloy continues: In a world that is animated by spirits, human beings must treat all things with care. If a spirit is injured or insulted, it can retaliate.Human beings must therefore show that they respect nature, especially the animals and plants that they kill to eat. Human beings must understand the existence and ways of the spirit world so that they can avoid harm and incur blessings. (p. 42) The native cultures constantly walked a fine line of balance. Everything was done with care and consideration for their environment and the spirits that lived in the earth all around them. Upsetting that balance could cause great harm to them and their people, but maintaining the balance and pleasing the spirits could bring blessings to the people.We can also see this respect even in the things the tribal cultures would take from the earth. Lewis (1995) related: Indians managed this world's bounty and diversity based on years of accumulated wisdom–the trial and error of previous generations. They acknowledged the earth's power and the reciprocal obligation between hunter and hunted. They acted to appease spirits who endowed the world. Native peoples celebrated the earth's annual rebirth and offered thanks for her first fruits.They ritually prepared the animals they killed, the agricultural fields they tended, and the vegetal and mineral materials they processed. (p. 423) Indigenous cultures sacred relationship with nature led to a contract of sorts with the earth. Most cultures would take only what they needed, and nothing else. They would also be certain to use every part of whatever was taken. If an animal was killed for food, they would eat everything edible, they would clean and tan the hide to use for clothing or shelter, they would find use for the bones in ceremonies or as weapons – nothing went to waste.This attitude of â€Å"waste not, want not† was to show respect to the earth for providing the people with the things that they needed to live. Goffman (2005) wrote, â€Å"For Native Americans, the relationship between hunter and prey was not just a processing of material resources; many native hunters apologized to the animals they killed. After killing a bear, one chief, Wawatam, conducted a ceremony wherein he lamented the necessity of killing a ‘friend'. † The culture took very seriously this responsibility to maintain balance and show respect to mother nature.Molloy told of the native Hawaiian's practice that, â€Å"fishi ng in certain areas would be temporarily forbidden (kapu, or taboo) in order to allow the fish population to be replenished. † (2005, p. 42) Tribal people lived so much at one with the land that they knew it inside and out. They knew the patterns of the animals that lived on the land, and they knew what they could take without depleting the population, and when they needed to find sustenance from other sources to allow the earth to replenish itself.Taylor (2005) explained the practice of the Itza' Maya in the lowland Peten forest of Guatemala: The Itza' Maya, who have lived in the Peten for centuries, plant more crops and tree species than do neighboring Q'eqchi' Maya (who moved to the forest from the highlands) or non indigenous Ladinos. Itza' also farm in ways that are less harmful to the soil and more productive, and show a more sophisticated understanding of forest ecology than do the other groups.One factor in Itza' agricultural and forestry practices is a belief that spi rits act as intermediaries for particular forest species, and these must be cared for and respected, while the intimate local knowledge of the Itza' – inextricably linked to their worldview and spiritual traditions – guides sustainable management and farming practices. (p. 835) The indigenous people that had lived in that area for centuries knew the land as well as someone might know a member of their family, showing the enormously sacred bond they had with their environment.Stories like this one of the Itza' Maya are more the rule than the exception – so many of the native cultures held the belief of a sacred earth that must be treated with respect, only taking what you need and nothing more. We can also observe the sacred nature of the relationship between nature and indigenous religion by reflecting on their various origin stories. Grim (1998) related this For the Dine/Navajo, the encounter with mystery is as evident as the wind which brought existence into b eing. One chanter described it this way:Wind existed first, as a person, and when the Earth began its existence Wind took care of it. We started existing where Darknesses, lying on one another, occurred. Here, the one that had lain on top became Dawn, whitening across. What used to be lying on one another back then, this is Wind. It was Darkness. That is why when Darkness settles over you at night it breezes beautifully. It is this, it is a person, they say. From there where it dawns, when it dawns beautifully becoming white-streaked through the Dawn, it usually breezes.Wind exists beautifully, they say. Back there in the underworlds, this was a person it seems. Here the beauty of primordial existence is remembered and felt in the experience of Wind. Taylor (2005) explained where the Maya believe they originated from: â€Å"For the Maya and other Meso American peoples, spiritual links to nature are clearly expressed in beliefs and traditions relating to maize. The first humans were made of corn, according to the Popol Vuh, and corn cultivation remains central to the lives or rural people throughout Mexico and Central America. † (p. 34) Molloy wrote of the people of the Acoma Pueblo, who believed that two sisters lived in the earth, and eventually climbed out of their home in the ground through a hole. They became the first human beings on earth, and one of the sisters became the mother of the Pueblo. (2005) Each story of how the world and the people came to be is vastly different. Some believe that the earth was created by a High God, some think that the world took shape from the mist, some say that this world rose out of previous earths. (Molloy, 2005) No matter what the origin myth, each culture believed that the earth was created for them.They could see the honor of being keepers of the earth and took the responsibility very seriously. So what can be learned from studying the relationship between the indigenous peoples and nature? From their origin s tories, to their kinship with the land, to their respectful hunting attitude, to their belief that everything around us has just as much of a spirit as we do, we can witness their sacred relationship with the earth. The native peoples believed the earth to be sacred – a thing that must be cared for and respected or it would retaliate.I believe that in the not so distant past, many humans have lost sight of the reverence with which we once looked at the environment, and that the earth has begun to retaliate. Though I may not believe that rocks have spirits, I do believe that the indigenous cultures were on to something with their respectful and sacred attitude toward nature. If we as a people can learn to adopt some of the same feelings toward the earth, the earth might give us back some of what has been lost to greed and destruction. References Forbes, J. D. (2001). Indigenous Americans: Spirituality and Ecos.Daedalus, 130(4), 283-300. Retrieved from http://search. proquest. com/docview/210569466? accountid=2163 Goffman, E. (2005) God, humanity, and nature: Comparative religious views of the environment. Retrieved from: http://www. csa. com/discoveryguides/envrel/review. php Grim, J. A. (1998). Indigenous traditions and ecology. Earth Ethics, 10 (1). Lewis, D. R. (1995). Native Americans and the environment: A survey of twentieth-century issues. American Indian Quarterly, 19(3), 423-423. Retrieved from http://search. proquest. com/docview/216849866? accountid=2163 Molloy, M.

Supporting Teaching and Learning Essay

1. Outlie the difference between sequence and rate of develoment. Why might children develop at different rates in different areas? All children are different in sequence of development depending on events of what will happen while growing in age, as like Maslows hierarchy of needs are shown you need all acpects to develop, you need (qouting from Maslows hierarchy of needs) basic needs such as physiological needs (Health,food,sleep), safety needs (shelter, removel, belonging and love needs (love, affection, being a part of groups), esteam needs (self-esteem and esteem from others) to finally you will reach the top to self-actualisation needs (Achieving individual potentail) so for a child to develop they must complete one of the area’s before they move on to the next one. each and every child will develop at a different rate for example Some babies start teething from 6 months and some of them start even at 9 months, some babies can start talking at around about 1 Yrs but in some case’s at the age of 1 yrs some babies will still only babble and point at what they want but it will depend on the individual. milestones of development are given as a broad avarage of which they expect a child to reach but not all children are the same and will develop at their own pace. There are also other different areas of development from physical, social, intellectual and language no matter what the age of the child.. If at all one is skipped or is slow it can be a cause for concern and may lead to a child being given a special recommendation. 2. Discuss two personal factors and external factors that could influence a child or persons development These are some factors for personal and external factors Personal factors of a childs of development Pupils health mother who uses drugs, drinks and smokes what happens during pregnancy Being born premature Disability. Health status. Dyslexia. Learning difficulties External factors of a child of development Housing and education. Play and leisure activities. Culture and language. Aspirations and expectations. Family environment and background. Family choices. Looked after children. (i.e. Foster care, child minder, looked after by relatives) All these influences affect a child in different ways. children with difficulties and health problems don’t like or are less able to participate in some activities and this will affect physical development and will restrict children to not socialize with the other children and there peers. If a pupil has any of the personal factors staff from there school will be aware of what a pupil may need to support them through school and include them in as much activities as they can do. if a child has learning difficulties they will be encouraged to develop in all areas and will need guidance to manage there needs. Pupils will come from a rage of different family environments and go through lots of different changes while at school like family break up, one parent might have a new partner, illness, mooving  house or maybe they are in care which will may change a pupils behaviour and this may affect there time at school and ablity to learn. also Statistics show that children from a deprived backgrounds are less likelyto achieve at school beause there own parents can not meet their needs and this would impact on all areas of development. 3. Explain how theories of development and framework to support development influence current practice There are a range of diffrenent theories of develoment and many psychologists have different ideas on how children learn, some fill that children ability is innate and some say it will depend on the oppertunites that they are given in there life. Piaget’s constructivist theories which look at the way in which children seem to be able to make sense of their world as a result of their experiences and how they are active learners. He also suggested that as children develop so does their thinking. in other word’s children are learning though play. According to Freud’s psychoanalytic theory of personality, there are three elements of personality–the id, the ego and the superego. According to Freud, the key to a healthy personality is a balance between the three elements Id The id is the only component of personality that is present from birth, The id is very important early in life, because it ensures that an infant’s needs are met. If a infant is hungry or uncomfortable, he or she will cry until the demands of the id are met. The ego The ego is the component of personality, a child realises that how they behave may affect how it’s needs are met, he or she will not cry if they are hungery they would just wait untill food comes to them. The superego superego develops later in childs life, it is based on there development of the conscience. alternatively if the ego behaves well the superego will have pride The behaviourist approach to learning suggests that behaviour is learned from environmental factors, rewards and punishments. Watson believed that everyone is born with the same abilities and everyone and anyone can be taught anything. Maslow was originally was interested in behaviourism and he studied the work of Watson, he also looked at other psychologists like freud’s beliefs but Maslow wanted to understand what motivates people. He believed that our own nees were more important and the Hierarchy of Needs theory remains valid today. if you have a look at some of these theories they explain why everyone is capable of achieving the roles they set themselves. Some also help us to understand the driving forces behind our decisions, and that we are governed by inner factors. 4. Outline three different methods of monitoring development. There are many different methods of monitoing development. These are a few; observation standard measurements information from carers and colleagues Observation There are two types of obsevations informal and formal. informal observations are carried out on a daily basis when working with a pupil and overtime a picture can be built of the pupil’s progress and if there are any poblems such as not undetstanding how to use a ruler propley  or not holding a pencil corectly. Any observations are fed back to the teacher daily, however they may not always be recorded and information gathered may not be passed onto others. formal observations, his may be carried out to support the teacher on assessing a pupil’s level of development such as a controlled assessment or a speaking and listening test. Standard measures This is usually carried out by medical practitioners to ensure that a child is growing at the expected rate for their age. Information from carers and collegues Information from carers can be vital if there is a factor that may be influencing the development of a young person an example may be that the pupil is being bullied or they don’t understand the learning objective but are too scared to ask for help. As a colleague if you see a change in the child you must communicate this to the class teacher to help them to assess what assistance may be required. Parents and teachers should share information about pupils to enable them to work together for the childs best intreast. 5.Explain the reasons why children and young peoples’s developmemnt may not follow the expected pattern? There are lots of different reasons why children may not follow the expected pattern. a child may not follow the expected pattern if they have emotional problems, they my feel unsettled for a number of reasons one of which maybe children who may live with there parents that constonaly argue and fight and this will make the child fill withdrawn or could cause stress and make behavoul problems. a child may be at a disadvantage environmentally due to poor housing or area in which they live. If a chid lives in a house that is poory heated, this could mean a child will exprience bad health and this could also cause stress to parents and this could cause a child to develop more later then other children. Some children may have a poor diet, this affects there physical development, There have been many studies on diet and its effects and results have shown that a child who has a nutritious and  healthy diet achieves more in life. If a family are on a low income and cannot give a child a healty diet this could have a child show physical issues. 6. Descibe how disability can affect development. Childen with disabilities will be affected in a number of different ways, depending on on the the pupil needs and disabilities. it may cause a delay in a particular aspect of there develpment. example – Autism Autism is a developmental disability which affects how a person relates and communicates with other people and the world around them. A child with autism will find it difficult to understand facial expressions or the tone of a voice. and it could affect their ability to development or interact in social settings or in the classroom setting. Learnin difficulities Children with learning difficulties find’s difficult to read and may be come frustrated and problems could arise with there behaiour Physical disabities This may affect there social skills where a child will become withdrawn or affect there behaviour if they become frustrated and will become very withdrawn. A child with this disability may only be affected physically with this disability while others could be affected by seizures, epilepsy or difficulties with speech and language. When you are working with children with special educational needs (SEN) it is important that you focus on the pupils disability and needs and some of the children, not all, work will need to be modified and the pupil will need to be supported but not all children with disabilities require extra help and could go on to do GCSE’s and further there education in college and all they will need is a bit of encourgement. 7. identify four different types of professional intervention that could assist a child or young person whose development was not following the expected pattern There are many different types of professional intervention groups that will support pupils who are not progressing at th same rate as others. This is likely to be advised by either SENCO or another professional who links with schools. The four that i will be focusing on will be a social worker, speech and language therapist, physiotherapist and nurse/ health visitor. Social worker A social worker might be involved if there is a cause fo concern or if a parent has asked for help. in a school setting if the school in concerned for a childs well being they will also contact social services diectly. speech and language therapist Speech and language theraist can be based in a school setting or external. They will give the diagnosis of a communication delay or a disorder and will also advise and work with the parents and the school to support the child in the best way they can, with a non verbal child they will use activities and PECS thet will give a child the confidance to comunicate. Physiotherapist this professional help children with their movement especially those who have little or no movement they are trained to get the maximum movement and skill level. They will also give targets and execerise to pupils to work on to development their gross motor skills. Nurse/Health visitor Nurse and heath visitors provides support for the family and child especially if that child suffers from medical conditions that need specialist care Also health visitors come under this title for measuring and assessing a child’s development. 8. Analyse the importance of early identification of speech, language and  communication delays and disorders, and the potential risks of late recognition It very important to find the early identification of speech, language and communication delays or disorders and the potential risk of late recognitio because it is the crucial part of a childs learning. Because early identification means the child can receive the right treatment and support from professionals and others to target the childs needs hopefully correct the problem that the child has. greatly increasing the chances of improving their skills and helping to get their development back on track as quickly as possible. It is more better for a childs disorder or delays to be dinosoned at an early age so they have a better chance as the early years are a time rapid of learning and development. It can also cause learning delays, particularly in literacy, having problems with sounds and letters leading to delays in reading and spelling. late identification of speech, language and communication can effect their confidence and self-esteem and could find it harder to form relationships, can lead to problems with understanding or a child being able to express their own feelings, leaving them feeling angry or frustrated and causing them to act out and maybe develop behavior problems and isolated. very young children will not be able to recognise the reason for the way they are feeling. if a child that you work with has a communication delay or disorder, you should be sent to get the right trainning to help the child along through the time that you will work with them and also if you work in a school setting there will be speech and lanuage specialist that will came and work with the child as well as you. 9. Explain how play and activities are used to suppot the development of speech, language and communication. 10. Discuss three different types of transition, how they affect a childs or a young person’s development Transitions in life are a fundamental part of development in children and  young people. From an early age a child will experience some form of transition and how well they deal with these changes as they are growing up will be depend on their stage of development. when it comes to the time of transition childen should be able to talk about what is going to happen and be prepared. transition vary from child to child, so it is important to consider them on an individual basis. types of transitions may be: emotional – bereavement, entering/leaving care or the divorce or separation of parents physical – moving into another school setting, a new home. physiological – puberty, long term medical conditions intellectual – moving from nusery to primary school Emotional Pupils emotionals will be affected by their personal experince in there life. If there is a major change within the family unit such as parents separating or divorcing, it can have such an impact on the parents that the children’s emotions may be forgotten and there emotional development may well be affected, they may start to misbehave at home and or at school. physical Pupils who are moveing to a new home may find physical transition trumatic and unsettling and could afftect there development or if a child moves to a new classroom within the same school setting could find the transition positive and the effects wont be as tumatic as they won’t be making the changes alone, they will be with their friends. Intellectual Change such as having to deal with leaving nursery to primary school or from leaving primary school to secoundary and so on, if a this transition is not correctly handled can have a negative impact on development. It will be in  the best intreast of a child to visit each setting before they make the transaction. 11. Evaluate the effect on children and young people of having positive relationships duing periods of transitions.