Wednesday, August 26, 2020

Free Essays on Sex Pre-Selection

Danae Williams Humanism Mondays and Wednesdays Exploration Paper I moved toward this paper in an entirely different manner then some other paper I have ever composed. The subject that I have picked is sex determination and since this subject is so new I felt that each asset was one of a kind and had a great deal to offer. That is the reason I have decided to compose this paper arranged by the assets I have found. I trust that you wouldn't fret. Innovation these days is wonderful. There is so much that innovation is presently ready to do, and there is likewise a ton of rivalry out there concerning innovation. With the innovation today there really is no restriction to what somebody can do. Innovation has become so propelled that couples would now be able to even choose what sex they need their kid to be. Sex choice is a staggeringly costly and very senseless procedure. I would believe that up to two or three has a solid child that they would be cheerful, yet no more. Couples need it all and now they can do only that. Sex choice has consistently been near yet not the manner in which it is today. Precisely choosing the sex of ones youngster has been an objective of numerous societies since man has been on earth. Some notion has made numerous unbelievable practices for the multiplication of an offspring of an ideal sex at the time of origination. Proposals for having guys incorporate, engaging in sexual relations in dry climate when the moon is full, the nut collect is copious, and there is a north wind. Numerous guardians since forever have turned to particular premature birth and child murder, to promise them the sex of their kids. With later advances in innovation couple have more help with a precise strategy for choosing the sex of their youngster previously origination. Right now there are two strategies that give the best outcomes for sex choice, they are pre-implantation hereditary determination (PGD) of incipient organisms and sperm-figuring out stream cytometry. The moral ... Free Essays on Sex Pre-Selection Free Essays on Sex Pre-Selection Danae Williams Human science Mondays and Wednesdays Exploration Paper I moved toward this paper in a vastly different manner then some other paper I have ever composed. The point that I have picked is sex choice and since this point is so new I felt that each asset was one of a kind and had a great deal to offer. That is the reason I have decided to compose this paper arranged by the assets I have found. I trust that you wouldn't fret. Innovation these days is sensational. There is so much that innovation is presently ready to do, and there is likewise a great deal of rivalry out there concerning innovation. With the innovation today there really is no restriction to what somebody can do. Innovation has become so propelled that couples would now be able to even choose what sex they need their youngster to be. Sex determination is a unimaginably costly and very senseless procedure. I would imagine that up to a few has a solid child that they would be glad, yet no more. Couples need it all and now they can do only that. Sex choice has consistently been near however not the manner in which it is today. Precisely choosing the sex of ones youngster has been an objective of numerous societies since man has been on earth. Some notion has made numerous incredible practices for the multiplication of an offspring of an ideal sex at the time of origination. Proposals for having guys incorporate, having intercourse in dry climate when the moon is full, the nut collect is ample, and there is a north wind. Numerous guardians since forever have turned to particular premature birth and child murder, to promise them the sex of their kids. With later advances in innovation couple have more help with a precise strategy for choosing the sex of their kid previously origination. As of now there are two strategies that give the best outcomes for sex determination, they are pre-implantation hereditary analysis (PGD) of undeveloped organisms and sperm-figuring out stream cytometry. The moral ...

Saturday, August 22, 2020

Biomedical model of health Essay Example | Topics and Well Written Essays - 750 words

Biomedical model of wellbeing - Essay Example It expect that disease is brought about by variations from the norm in the body working as opposed to some other outer reasons. For instance, a large number of the heart issues, type two diabetics and so forth are reliant on the person’s activities and convictions as indicated by this hypothesis as opposed to some other components. It principally chips away at the physical procedures, for example, the pathology, the natural chemistry and the physiology of a sickness as opposed to the social or individual variables. Present day western medication is acknowledged biomedical model as the base of their clinical practices. This hypothesis considers our body simply like a machine. Like machine parts the harmed human parts should have been fixed or supplanted so as to keep a sound wellbeing. To put it plainly, western model of medication guarantees that the main legitimate method of evaluating a patient is through the biomedical model of wellbeing. This paper fundamentally examinatio ns the above case The focal point of organic model is on physical causes. It accept that mental and social procedure has very few associations with the ailment procedure (Taylor, p.11). â€Å"Social and mental variables may be acknowledged as being of intrigue, yet not with respect to genuine disease† (Brain, p.257) The specialist will solicit the subtleties from the illness and the patient will be encouraged to experience lab tests to screen temperature, beat, circulatory strain and so on. In light of the lab results and organic etiologies, the doctor will recommend a restorative arrangement for the patient (The Biopsychosocial Model of Health and Illness). Biomedical model of wellbeing accept that rather than consolidated exhibitions, an individual’s body and brain may work autonomously and cause physical or mental issues to the individual. For instance, dietary problem is a significant issue for some individuals. For this situation, rather than any outer components, the mental or mental elements are making issues the individual. As it were the physical disease of dietary problem is brought about by mental factors and drugs for the amendment of the

Monday, August 17, 2020

Dont Hit the Panic Button! - UGA Undergraduate Admissions

Dont Hit the Panic Button! - UGA Undergraduate Admissions Dont Hit the Panic Button! There is a scene from Animal House, where Kevin Bacons character, Chip Diller, is shouting Remain Calm! All is well!, while a panicked mob crushes him as it runs away from a parade gone mad. This is how I feel about this time of year. And at times, the end result is the same, with both of us trampled on the sidewalk, gasping for air. During the two weeks surrounding a deadline, life is hectic in all admissions offices. Applications are swarming in, materials are delivered to us in large mailing bins, emails are flying through our computers, and the lights on the phones are always glowing, showing us the incoming calls. And almost every one of those emails or phone calls is about one thing, Is it there yet? Why isnt it there yet?. The best thing for everyone to do during this time is to remain calm and dont panic. Give UGA (and any other colleges to which you are applying) time to dig out from the onslaught of materials. For our office, I expect that a majority of items that are sent by the deadline will be matched up by about January 27th or so. The one exception I give is if a student applied by using a paper application, as this slows down the process a great deal. So be patient, make sure that the materials were actually sent and have your correct name on them, and relax. Also remember that if multiple items were mailed in together, our office splits things up based upon what they are (transcripts, teacher recs, etc.) for quicker imaging and processing, so if one thing shows up as received and one does not yet, remain calm. And just so you know, our status check is not real-time, but it is updated every night, and I have requested that our technology team also update it every afternoon so students can see more current information. This means you do not have to check it twenty times a day. Go Dawgs, and remain calm ( I just had to say it one more time!).

Sunday, May 24, 2020

Significance Of Matriarchal Societies A Woman s Honor...

Sumiya Monaf Professor Badalato ENG1100C December 13, 2015 Significance of Matriarchal Societies in Tales A woman’s honor and reputation differs from culture to culture. In many cultures, women are expected to only bear children and become housewives. Some women are only allowed to work in certain fields that might only be permissible for what â€Å"women† would be capable enough to handle. Women until this day earn just 78 cents for every dollar a man earns. What must this go to prevail? One can only say that even today in our own modern society, we see clashes between the province of different sexes and tension between gender equality. Our social systems are divided into two norms, Matriarchal and Patriarchal. A matriarch is defined as a woman who is the central figure for her family, group, and or political administration. The term for males is the patriarch, a male who dominates his family, group, and his descendants. Both societies are reciprocal to one another; however, due to cultural belief the matriarchal society still falls under the shell that women are â⠂¬Å"soft† and â€Å"need support† from no one other than a male authoritative figure. In this paper, I will claim how many tales exemplify women to be these inferior characters who are abided into such gender bias stereotypes. Issues such as oppression, sexism, misogyny, and rape are all aspects that objectify the female society, which allows for misconceptionsShow MoreRelatedEssay about Exploring Women’s Role in the Bible2400 Words   |  10 PagesThe stories about women in the bible illustrate the importance of their role and contribution to society. Women were slaves, concubines, and child bearers; they were also wives, matriarchs, and prophets. Although, some women had less important titles than others each served a purpose. Even if the Bible does not explain God’s relationship with women as with Moses and other prophets, it illustrates the love and dedication women had for Him. The scriptures describe brave, nurturing, and God fearingRe ad MoreRastafarian79520 Words   |  319 Pagesin Africa and rejects the European values that have oppressed a society. But prior to the advent of popular culture and especially the music recording business in the late twentieth century, its apparatus of cultural formation was controlled fully by the elite who, to a large extent, ran the educational apparatus and the economic system. But much of the country was beginning to question in earnest the structure of colonial society by the early 1930s. The emergence of Rasta during that period corresponds

Wednesday, May 13, 2020

The Causes And Effects Of Computer Literacy - 940 Words

As someone with extensive computer literacy, I understand the importance of being able to be efficient with the use of computers. Whether it is at school, or at the workplace, the struggles and inefficiency I see people have with computers results in a lot of wasted time and effort. The internet, and computers, play such a giant role in the day-to-day life of human beings that if computers were all wiped out tomorrow, humans would have a very difficult time in adapting to life afterwards. Individuals that do not have the proper computer literacy in 2017 will be at a significant disadvantage among those who are computer literate. In this essay, I will highlight some of the causes of computer illiteracy and how it effects people’s lives.†¦show more content†¦Be that as it may, someone will have to be going through some rough times to not be able to afford a computer and internet service but it does not mean that there aren’t people out there living with this real ity. Not being able to find a job to help pay for it, or not being able to attend a college to better the situation are some of the possible consequences of being computer illiterate in 2017. Having flexibility with time is beneficial for someone with financial struggles when he or she is trying to balance work life with school life. Consequently, not having good computer skills will restrict the student from taking online classes that will allow flexibility with his or her work schedule. With 3 children, I find this to be a great benefit and plan on taking online courses for any course that allows it. There are people out there that just are not attracted to using computers and other types of technology. These people typically enjoy being outside, and work blue collar jobs that require little computer use. There is no need to operate a backhoe or bobcat with a computer yet. Shovels, screwdrivers, and hammers aren’t plugged into keyboards either. A part of me envies their ability to stay away from technology, because it does consume such a big part of people’s lives that it is hurting the connection humans have with each other. The consequences are that if they ever wanted to go back to school or ever wanted to change careers, they would be starting at aShow MoreRelatedNational Assessment Of Adult Literacy1104 Words   |  5 Pagesschool. Literacy is vital element to education and illiteracy can greatly affect an individual. The National Assessment of Adult Literacy states that literacy is â€Å"using printed and written information to function in society, to achi eve one’s goals, and to develop one’s knowledge and potential† (â€Å"Literacy Surveys†). Without the ability to read, an individual cannot achieve any of their goals or rise to meet their potential. People are looking to the government for funding to resolve the literacy issueRead MoreRelation of Computer Literacy to Students Academic Performance1519 Words   |  7 Pagesthe time to learn about computers often do not even know what to do once one has been turned on, and this problem should be corrected. That is why all high schools must make a computer literacy course a requirement for graduation. Although a computer course would take away two or three periods of a high school students weekly schedule, it will be well worth it in the real world with so many careers today involving a knowledge of a computers basic functions, computer literacy plays a big part in jobRead MoreImportance Of Computer Literacy994 Words   |  4 PagesWhy computer skills are important As someone with extensive computer literacy, I understand the importance of being able to be efficient with the use of computers. Whether it is at school, or at the workplace, the struggles and inefficiency I see people have with computers results in a lot of wasted time and effort. The internet, and computers, play such a giant role in the day-to-day life of human beings that if computers were all wiped out tomorrow, humans would have a very difficult time in adaptingRead MoreHow Technology Can Be Incorporated Into The Everyday Curriculum1532 Words   |  7 Pagesschools. So we can see how technology assistance can be of positive effects on students’ performance, some of these positive effects include: technology seeks to enhance literary development; provides greater access to information, enhance students’ self-esteem and motivate students. Literacy is defined as a flexible group of skills and strategies that are closely linked to context and purpose. Technology seeks to enhance ones literacy development as it influences how people read, write, listen, andRead MoreInformation Literacy and Scholarship, Practice, and Leadership in It Management1337 Words   |  6 PagesInformation Literacy and Scholarship, Practice, and Leadership in IT Management R. Dannels University of Phoenix IT (Information Technology) management entails all the routine issues faced by any type of business manager in addition to the issues of software development, technology purchasing (not necessarily physical items), systems integration, the limits of technology and the related budgetary issues. General information literacy is important for any level of IT manager, as he or sheRead MoreMy Resignation Letter At Sylvania High School1683 Words   |  7 Pagesfulltime capacity because it negatively effects my health to a point that I cannot manage. I am so sorry to let you down. I am happy to discuss my resignation further in person, but do not wish to elaborate in any greater detail in writing. I understand that my employment agreement will have terms attached to my resignation of which I am not familiar. Please advise me what you would like me to do to give you time to find a replacement and which causes you the least amount of disruption andRead MoreTechnology And Its Harm To Future Generations Essay1067 Words   |  5 PagesTechnology And Its Harm To future Generations Will the usage of computers in a classroom setting result in adverse effects on young future generations? No doubt, for years has this been an ongoing argument concerning the educational system. Because computer use is promoted in schools, and because computers are so ubiquitous, children have a great deal of exposure to them. Not everyone, however, is comfortable with the use of computers by young children. Educators, Professors, Parents, and School BoardRead MoreVoluntary Reading Levels1092 Words   |  4 Pagesperformance. I found multiple trends, across fourth-graders in successive rounds and longitudinally, as these readers aged into higher grades. Worse, voluntary reading was especially low for lower socio-economic groups and some racial categories. What could cause such a precipitous drop over such a brief period? And what were these students actually reading? The National Center for Education statistics did not specify what was included in reading: was that just print books , or did that include reading forRead MoreChildren With Dyslexia And Strategies For Teaching Them Literacy879 Words   |  4 Pages Children with Dyslexia and Strategies for Teaching Them Literacy (Draft) Jennifer A. Eyink George Mason University â€Æ' Abstract This paper explores three peer-reviewed articles that involve treating children with reading disabilities. Two of these articles derive their data from empirical studies. One article is purely research based, and offers many simple strategies for treating a dyslexic child in the music classroom. All reading disabilities described in these articles, such as specificRead MoreDoes Illiteracy Affect Crime and Poverty Rates?1757 Words   |  7 Pagesmean a person is going to commit crime, it does make it more likely. The link between crime and illiteracy is evident in the amount of children who enter these facilities unable to place into or above the â€Å"basic† level of literacy defined by the National Assessment of Adult Literacy. According to www.statisticbrain.com, 32 million U.S. adults, which is 14% of our entire population alone do not know how to read. Another 21% can’t even read past the level of a 5th grader. A surprising 15% of high school

Wednesday, May 6, 2020

Psychology Ia Notes Free Essays

Psychology Summer Assignment 2011 Due first class back in August/ September: Draft of Introduction and Design of Psychology Experiment. HL Psychology: IA is graded out of a score of 28. It is worth 20% of your final grade. We will write a custom essay sample on Psychology Ia Notes or any similar topic only for you Order Now 1500-2000 words SL Psychology: IA is graded out of a score of 20. It is worth 25% of the Final Grade. 1000-1500 words Refer to the IB Guide for First Exams in 2011 as you write your paper, and keep in contact with me. Here is a website from which you can download the Psychology Guide: http://www. bsurvival. com/files/file/1134-psychology-guide-for-first-examinations-in-2011/ Here are the parts of the IA that you must submit in our next class in August: Introduction (5 points HL; 2 points SL)) Method: Design (2 points for SL and HL) Method: Participants (2 points for SL and HL) Method: Procedure (2 points for SL and HL) Key advice: NUMBERS: Make sure that you choose an experiment that has results that can be measured on a broad scale. So observers in Bandura were not told to rate violence on a â€Å"yes† or â€Å"no† basis, but to count the number of violent acts; Milgram had many intervals on his â€Å"shock machine† that enabled him to measure and compare statistics about what point people would drop out at; Loftus and Palmer asked participants to estimate speeds in miles per hour, as opposed to â€Å"were they going fast or slow. † You will be calculating statistics and showing trends. The more detailed the numbers, the more you can say about them. And nearly half of your IA grade will be based on what you do with these numbers. ETHICS: Refer closely to the Guide as you prepare. PARTICIPANTS: there are many characteristics of participants that can be considered confounding variables. You should know your experiment well enough to avoid these. DESIGN: Repeated measures or independent samples. The answer to which one you choose is always logical, but you must show that you understand the logic. METHOD: It must be possible for the reader to replicate your study based on what you write. A word of encouragement: You should be carefully selecting the experiment that you will replicate over the summer. I have asked for a draft of the first parts of the paper to get you to start writing in the IA style. If you over the summer you find that you cannot write about your experiment, you will still have time to choose another one. I will be available throughout the summer through emails, and at times through Moodle, so keep in touch. The IB says that you must have 30 hours (SL) and 40 hours (HL) of class time devoted to the IA. I prefer to use this time to work on how to do the experiment, express the results, debate the conclusions. But for that, you need to get through the simplest processes on your own. Every one of you is capable of a grade of â€Å"5† if you are diligent. And once you know you have an IA grade of â€Å"5,† you’ll have renewed confidence and motivation to get through the final months of the course. Due Dates: First Draft (all parts) by October 20 (last class before the Toussaint break) Papers will be returned with comments and advice after the Toussaint. Final Draft: IB and Ermitage approved deadline is December 10. This information can also be found on your Moodle Y1 Psych site. How to cite Psychology Ia Notes, Papers

Monday, May 4, 2020

Great Disappointment free essay sample

Mid-summer blues guided me indoors, for a much needed cool down from the blistering hot sun that cast upon the entire backyard. No where could I escape the humid July heat better than the air conditioned sanctuary I called home. I lazily pranced through the back door slowly making my way to the kitchen. As I opened the old leaking refrigerator, I felt a blast of cold air hit my face. With a newly added bounce in my step and a cup of ice cold water in hand I headed off to my father’s room. I secretly knew that he would be propped up in his new black leather office chair listening to NPR. With a blast of energy I opened the wooden door. My excitement dwindled away. The light was off and his black tennis shoes were gone. I was extremely disappointed to find a disserted bedroom. My mind quickly raced away. We will write a custom essay sample on Great Disappointment or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I had to find another way to keep my dirty little hands busy. The idle television and freshly made California king size bed called my name. I had big plans in my little mind, I had came to the conclusion that it would be the perfect chance to kick back and relax like the grown folks do. I crawled up and sprawled out on the lush mattress. With my long sun-bleached hair fanned out over the pillow I felt as if I was on top of the world. As I cooled down in style my energy began to bottle up. Before I knew it my idea of relaxation turned into a party. I was jumping high into the air. Each bounce added more exhilaration. I soon lost all control, I was about to break one of the all time rules: Never, under any circumstances open the small wooden box on my father’s headboard. I never knew what great treasure it held. Though at that point in time I was ready to find out. Just as I plopped down on the bed and placed my hands on the sides of the wooden box my father walked in. The bl ue handmade comforter now covered the floor. Pillows were scattered around the room and I was doing the unthinkable. I held in my hands his wooden box. He did not have to say one word. I was already well aware of the disappointment my Father’s piercing blue eyes burned into me. Just as fast as the wonderful idea came, it was gone. I placed the box back onto the headboard where it belonged and began to fix the disarray I had caused. Still to this day I can tell when my father is disappointed by looking into his aging eyes.

Monday, March 30, 2020

My Dog, My Best Friend free essay sample

There are few moments within a person’s life that can be considered life defining. For many people a life defining moment can consist of a new person into their life, or a new idea or invention that came to mind. For me my life defining moments are not all the same. While I have great moments and simple moments, many are so incredible that I could not begin to describe. However there is one moment in particular that is describable and very â€Å"life defining†. It was in the middle of sixth grade, my life was headed in a direction that was not suitable for a typical Christian teenager. I was slacking off in my work and my life was just not headed in the direction that is Christ honoring. I thought that it would take a miracle for me to get back on track. Well it was a far cry from a miracle but it was a life defining moment none the less. We will write a custom essay sample on My Dog, My Best Friend or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I was about 13 and can still remember clearly the event and how it took place. I came home from school on the day of my birth with a long face and a heavy load on my shoulders. I’m not sure what was weighing me down, but I knew that something was dragging my spirit. Little did I know that it was all about to change, I walked through the door and entered my house to find my mom and my sister talking in the kitchen. I made it about half way to the couch when something attacked my leg. To my surprise it was a new puppy. This puppy was no ordinary puppy it was a germen short haired pointer. It had brown spots all over its white-hair body. Needless to say I was a bit surprised, but all in all I found this puppy to be a great stress relief, and I know I don’t have to tell you that a typical 13 year old has a ton of stress. Throughout the years this little puppy has become a great object of my affection, He has helped me out of many ordeals by both friendship and as an â€Å"scapegoat†. I have always found that I can talk to him no matter what and He always listens. While it is true dog is man’s best friend, this one has become like the brother I never had.

Saturday, March 7, 2020

TORNADOS essays

TORNADOS essays The role of a tornado is one of the most dangerous natural disasters that exist in the world today. Lets see, the first thing that may come to mind is saying, Can a Tornado destroy one half of your Town, City, or State? Have you ever thought that tornados are just a powerful spinning column of wind? What is a Tornado? A tornado is a rapidly rotating column of air driven by energy in the atmosphere. Tornados usually occur from intense thunderstorms where the hot air rising and the cold air is descending. Most tornados in the United States occur in an area known as Tornado Alley, which is located in the Ohio valley corridor. Tornados usually take place in the late spring and early summer. Other States where tornados are frequent are, Alabama, Arkansas, Louisiana, Mississippi, South Dakota and Texas. On Presidents Day 2005 a tornado struck the capital city of Sacramento of California. This is very rare occurrence for California. One way to describe a tornado is in steps. The first step is located at the top of the tornado. This is referred to as the anvil of the tornado. The second step down is where the tornado gets the spinning action. This is known as the mesocyclone of the tornado, located in the center section of the tornado. The third step down at the bottom of the tornado is called the mid-level-wind. This level helps put the weather in to the tornado. When hail starts falling, which is actually moisture turned in to ice balls, that come from the clouds is one indication of a up coming tornado. A tornado can last from a couple of minutes and as long as two hours. The intense thunderstorm may just die out with thunder, lightening and rain. The tornado is a vortex of air that spins and when it touches the ground has the power to destroy buildings and pick up vehicles tossing them sometim ...

Thursday, February 20, 2020

Fall 2011 Emily Dickenson Essay Example | Topics and Well Written Essays - 1000 words

Fall 2011 Emily Dickenson - Essay Example Staring with the formal characteristics of writing, there are three identifiable techniques used within this poem. The first characteristic Dickenson uses in her poem is the idea of imagery. As she describes death, or impending death, Dickenson describes the concept by having readers imagine cold and bleak winter afternoons that oppress everything encompassed in the day. It is through this grim picture of a frigid winter’s day that the reader can start to appreciate the lifeless nature of death. By requiring the reader to visually imagine the places and experiences she is describing, Dickenson is able to connect a reader of her poem to their emotions of the events she is describing. Upon analyzing the poem, a person can equate the emotions they feel about a dreary and bland winter day to the unavoidable future of facing death. Along with visual images, the second language characteristic Dickenson utilized in â€Å"There’s a certain Slant of light† is the concept of metaphor. Upon describing despair and depression, Dickenson used a metaphor of ringing church bells that echo in the empty air around them to relate the stark loneliness of depression to readers. By connecting these two items together, Dickenson is also taking the physical object of a church bell, which has both positive and negative connotations, and connecting it specifically with a negative emotion in this use of metaphor within her poem. While the first two examples demonstrate the visual images and metaphors Dickenson wanted her readers to see in â€Å"There’s a certain Slant of light,† the poem also contains the language characteristic of rhyme. Dickenson uses the form of inexact rhyme, where the words at the end of line have similar sounds but are not required to have matching vowel and consonant sounds like exact rhyme. In using this type of language characteristic, Dickenson is adding a degree of ease to the poem for readers. By reading the poem as it float s along, the dark subject matter of â€Å"There’s a certain Slant of light,† might not even rise to the reader’s awareness upon first review of the poem. Upon establishing three language characteristics that exist within Dickenson’s poem, I am now able to speak of my interpretation of this written work. After reading â€Å"There’s a certain Slant of light,† I found that this poem represented a feeling of despair and depression from Dickenson. Whether this was connected to a bleak and dreary winter day or just from depression in general, this idea translated into the incredible loneliness that comes from realizing you feel totally alone. Each time I read the poem, I paid attention to the emotions I felt upon voicing Dickenson’s words. While the majority of the emotions evoked by this piece were feelings of loneliness and trepidation, the one thing that truly struck me was that by setting this poem to the beat of an inexact rhyme, the l ight and airy nature of how one speaks the poem seems to almost contradict the message Dickenson is portraying. Perhaps in this way, Dickenson was attempting to lead to the reader to believe that even in the most dreary and bleak of winter days, there is always cause to hope for spring. Question 2 As a major genre in literature, the concept of postmodernism is defined as literature from the post World War II

Tuesday, February 4, 2020

See below Essay Example | Topics and Well Written Essays - 2000 words - 1

See below - Essay Example This is the reason why their poetry are instructive and moralistic. It is not art for art’s sake alone but art as a social tool to teach and reach people, moving them to act and do something for the society and the nation as a whole. The following three poems from Robin Skelton’s Poetry in the Thirties will prove or disprove what Virginia Woolf says about the poetry produced during the 1930s. These are September 1, 1939 by W. H. Auden; Different by Clere Parsons; and Light Breaks Where No Sun Shines by Dylan Thomas. This nine-stanza poem of W.H. Auden is an example of what Virginia Woolf calls a poem of the 1930s that contains â€Å"the pedagogic, the didactic† and â€Å"the loud-speaker strain† calling for â€Å"the creation of a society in which everyone is equal and everyone is free.† The first stanza critiques the system as â€Å"low dishonest decade† where â€Å"The unmentionable odour of death/ Offends the September night.† Feelings of uncertainty, fear, hopelessness and anger dominate this stanza. It is a prologue to the situation that the state or society is at the moment of writing. According to the second stanza, the cause of the dilemma can be explained and be traced back to history. Evil has been committed thus the people reap what they sow: â€Å"Those to whom evil is done/ Do evil in return.† This can also be interpreted as a call to act and fight against the â€Å"evil† and the ones causing this evil. Then in stanza three, the poet/persona plunges right into the main issue: democracy; â€Å"About Democracy,/ And what dictators do.† There has been a neglect and abuse of their duty: â€Å"Analysed all in his book,/ The enlightenment driven away,/ The habit-forming pain,/ Mismanagement and grief:/ We must suffer them all again.† The past is repeated because they have not been good stewards of the freedom they had possessed. They have allowed the dictators to reign over them. Then the

Monday, January 27, 2020

Lephalale Exxaro Training Centre

Lephalale Exxaro Training Centre The purpose of this report is to provide a description of the period of vacation work spent at Exxaro Resources Grootegeluk mine. The requirement was set to the student to spend time with and work with artisans in their everyday environment to gain valuable practical training and experience. The training provided a broad overview of the environment that an engineer can be exposed to and must be able to handle during his or her practice. A comprehensive understanding of different disciplines was attained by working with diesel mechanics, millwrights, electricians and fitters. Tasks completed range from the manufacturing and assembly of components to the maintenance of existing systems and troubleshooting of systems that dont function as expected. The incorporation of a study of personnel management added another dimension to the training period by informing the student about the enabling, employee lifecycle and supportive services offered to the employee to ensure a satisfying and adv ancing working environment. INTRODUCTION Exxaro Resources Ltd is a South African mining company that owns coal, mineral sands, base metals as well as industrial metal related assets. The majority of its revenue is however generated by its coal mining business units. Exxaros Coal Mining Division is established as the fourth largest producer of coal in South Africa with eight different coal mines throughout the Limpopo and Mpumalanga provinces under their control. Exxaros Grootegeluk Coal mine in Ellisras in the Limpopo province is an open-cast coal mine with the largest coal beneficiation facility in the world. It supplies power station coal to the Matimba Power Station and also produces coking coal for use in the production of steel, as well as high quality metallurgical coal. It is also the home of the Medupi power station expansion project which, after completion will lead to Grootegeluk being the largest open-cast mining facility in the world. CONTENT 2.1. PRACTICAL TRAINING 2.1.1. SECONDARY MINING MAINTENANCE 2.1.1.1. INTRODUCTION The central workshop on the Grootegeluk site is responsible for tasks such as repair, maintenance, assembly and fabrication. The workshop is divided into three sections, namely Mining Maintenance, Plating and Refurbishment. The secondary mining maintenance section situated in the central workshop on the Grootegeluk site is primarily responsible for the maintenance of the water trucks, tippers, low-beds and smaller trackless mobile machinery. Time was spent working in this section, in cooperation with diesel mechanics, to acquire knowledge of the maintenance and operation of the trucks. 2.1.1.2. TRUCK INVENTORY 3 water trucks and 3 tippers are required to operate at any time. The trucks used are supplied by Caterpillar and are classified as the CAT 777 models. The models that operate on the mine currently are the CAT 777D and CAT 777F models. The plan at the moment is to phase out the CAT 777D trucks and incorporate the newer CAT 777F models. 2.1.1.3. LAYOUT OF CHASSIS AND POWER TRAINs A major advantage of the fact that the CAT 777 models are being used is the fact that the chassis and power train can be used interchangeably between trucks that are of the same model. Depending on what is required, either a water tank or bucket can be mounted on the chassis making it a versatile alternative to the purchasing of trucks manufactured for specific purposes only. The trucks are powered by an 870 horsepower, 27.9 litre engine. The power from the engine is sent through a torque converter, which is followed by a prop shaft leading to a semi-automatic transmission, differential and the left and right rear final drives. The basic layout of the truck can be shown as follows: 2 2.1.1.4. WATER TRUCKS Responsibility of water trucks: Spray water on the mine roads to reduce the amount of dust caused by the passing of trucks and mine machinery In the event of a fire on the mine, the water trucks may be used to extinguish the fire by use of a nozzle mounted on the front Capacity: The total load carrying capacity of the water trucks depends on the model. The capacity of the tank on the older CAT 777D trucks is 80000 litres while the tank on the newer CAT 777F has a slightly larger capacity of 82000 litres. Pump and spray system: A centrifugal pump system is used at the back of the truck to pump water from the tank to the spray nozzles. Water flows down from the tank into the pump where it is then rerouted upwards into the piping system leading to the spray nozzles. The spray nozzles then project a jet of water at a small obstruction which again changes the direction of travel causing the water to disperse Diagram of piping: Diagram of side view of spray nozzles 2.1.1.5. TIPPERS Responsibility of tippers: Waste and overburden in the mine is defined as rock and soil that cannot be used for the extraction of product. It also includes the waste produced during the extraction of the product. Because of the small amount of coal content that might still be present in the waste there is always a risk of spontaneous combustion. The tippers are responsible for moving and dumping red sand and topsoil on the waste dumps and the areas around the pit to shield the area from intense direct sunlight and reduce the probability of spontaneous combustion. The tippers also operate occasionally in the pit together with front-end loaders to clean out small amounts of material that the shovels and larger trucks are unable to collect because of the lack of space for operation. Capacity: The load carrying capacity of the tippers is dependent upon the condition of the hydraulic system used to lift the bucket. Two hydraulic cylinders are used to lift the bucket and tip the load. In a brand new condition, the tippers are able to handle a load of 120 tons while a tipper that has been in service is typically only loaded up to 100 tons to ensure that the system will be able to dump the load. 2.1.1.6. SERVICING THE TRUCKS In the coal mining environment, the trucks are required to be serviced after every 300 hours of operation. During the training period, both the CAT 777F and CAT 777D models were serviced. The 300 hour service on the CAT 777D truck entails the following: Sampling 3 different samples of fluids were taken while the engine was still running Engine oil Transmission fluid Hydraulic fluid 6 more samples were taken after the engine was switched off Left front hub oil Right front hub oil Left final drive oil Right final drive oil Steering fluid Differential oil These samples were then sent to the mine laboratory. The samples are then analysed to check for the presence of iron filings or debris that could indicate the presence of wear on the components. Replacement of filters The sump plugs and used oil filters were removed to drain the engine oil Although the primary sump is the most important to be drained, the engine also has a small secondary sump that was also drained Used oil was caught in an oil trolley New oil filters were installed Diesel filters were removed New diesel filters were installed New steering filter was installed Checking the fluid levels The level of the oil in the final drives, front hubs, differential, hydraulic system and transmission were checked Transmission fluid was filled up Engine oil was filled up The servicing of the CAT 777F trucks was handled by certified Barloworld technicians, since the trucks have only been operating on the mine for a short time. Mechanics present in the workshop had to thoroughly observe the tasks that the technicians were performing in order to learn what needs to be done. Eventually the task of servicing will be handed over to the diesel mechanics. 2.1.1.7. DRIVING THE TRUCKS The trucks operate using as semi-automatic transmission. This transmission eliminates the need for a clutch pedal, leaving only a brake pedal and an accelerator pedal. A torque converter is however incorporated with the gearbox to fulfil the purpose of the clutch. Three different braking systems are available on the trucks. Operators seldom use the foot brake which exerts a braking force on the all four wheels of the truck because of the heat generated. The steering column is fitted with levers to operate two other braking systems. The retarder lever is primarily used to slow the truck down by exerting a braking force on the rear wheels. The secondary lever is a last resort for operators and, when pulled, exerts a braking force on all four of the trucks wheels simultaneously. When the trucks are stationary and the engine switched off, the park brake has to be engaged. Additional stop blocks are placed behind the wheels of the trucks to prevent them from rolling. When the truck needs to be driven the following steps are taken: Engage the park brake Engage the retarder lever Select the number of gears required from the transmission Disengage the park brake Disengage the retarder lever Press the accelerator pedal The transmission will shift through the number of gears selected Steer the truck 2.1.2. CENTRAL WORKSHOP: PLATING 2.1.2.1. INTRODUCTION The central plating workshop at Grootegeluk mine is responsible for the majority of the sheet metal work that needs to be done on the mine. Artisans in this section have the task of manufacturing and assembling components of structures or machinery in and around the mine. The plating workshop also has facilities to sandblast and spray the components manufactured. The majority of the workload of the workshop finds application in the production and beneficiation plants. Time was spent with boilermakers in order to gain an understanding of sheet metal work. 2.1.2.2. MATERIAL Mild steel and stainless steel are the dominating types of steel used in the workshop. The type of material used for an application is in some instances limited by the capabilities of the available machinery. 2.1.2.3. PREHEATING Preheating of materials is an advantageous process when welding has to be performed and aids in the assurance of a strong, quality weld. Four main reasons for preheating exist. Preheating of the metal reduces the rate at which the welded component cools down. Rapid cooling of the welded joint could cause shrinkage of the metal in the vicinity of the weld which eventually leads to the formation of cracks and reduces the strength of the weld. In materials with low ductility, the shrinkage stress in the weld area could cause extensive deformation of the component after welding. Preheating lessens the effect of distortion by giving the welder the opportunity to utilise a momentary increase in ductility during the welding process. When the temperature of the parent material that is being used is too low, it can cause the deposited electrode metal to cool rapidly, leading to the prevention of the fusion of the metals. Preheating lowers the risk of this situation occurring. The amount of preheating required is dependent upon the thickness and configuration of the plates to be welded. The final reason for preheating relates to the presence of moisture on the surface of the metal. If the surface of the metal is wet during the welding process it could lead to the rejection of the weld or an accelerated tempo of surface crack formation in the welding region. 2.1.2.4. TIPS FOR FLUX-CORED ARC WELDING The flux-cored arc welding used in the workshop uses a wire electrode which is shielded by an appropriate gas. In general, flux-cored wires are manufactured to function with either carbon dioxide or a mixture of argon and carbon dioxide as shielding gas. The shielding gas prevents the spark from causing the uncontrolled dispersion or oxidation of the electrode metal. Flux-cored arc welding is generally performed by dragging the welding gun along the joint that needs to be welded. When welding t-joints it is important to maintain the welding gun at a 45à ¡Ã‚ ´Ã‚ ¼ angle to ensure that the electrode metal is evenly deposited in both pieces of metal. When completing butt welds the torch needs to remain in an upright position and should not deviate from the upright position by more than 15à ¡Ã‚ ´Ã‚ ¼. This will also ensure even distribution of the electrode metal during the welding process. 75à ¡Ã‚ ´Ã‚ ¼ 2.1.2.5. EQUIPMENT Welding Lincoln electric Idealarc DC-600 power source Direct current welding power source with a maximum current output of 850 A and maximum voltage output of 44 V Lincoln electric LN-25 PRO semi-automatic wire feeder Wire feeders are connected to the power source to feed electrode wire through the welding gun Tri-mark TM-791 Flux-cored electrode wire used in conjunction with CO2 as shielding gas Matweld Anti-spatter Silicone mat 0810 Spray canister that is used to prevent the spatter of electrode metal during the welding process The spray is applied to the welding gun Cutting torches: Two combinations of gases are used in the cutting torches. LP gas and oxygen are used together, or acetylene and oxygen Lighting the torch The operator opens the LPG or acetylene feed and lights the gas After the LPG or acetylene has been lit, the oxygen supply is opened to enhance the flame An optimal flame to cut metal with is a quiet flame of blue colour with no visible or distortions Application of torches Torches are primarily used to cut mild steel in the workshop. Torches cannot be used to cut stainless steel. Technically speaking torches do not cut, they burn the metal. Burning involves oxidation of the metal. The high temperature of the flame accelerates this oxidation process. Stainless steel has low iron content and will not rust in the presence of the flame. Automated cutting torch This machine has the ability to follow a shape by means of a proximity eye on a table at the left side of the machine, while simultaneously moving the torch in the exact same pattern to cut a component from metal plates on the right side of the machine. Shapes are drawn and cut out on a yellow plastic sheet. The edges of the shape are then painted white. The shape is then placed under the eye which follows the outline of the shape while cutting the metal in the same way. Plasma cutter: Cebora Plasma Prof 80 art 947 Uses only compressed air to make accurate cuts in metal up to a thickness of 20 mm and rough severance cuts up to 30 mm Operation: The plasma cutter used in the workshop utilises high pressure gas which is sent through a small tubular gun. The small tubular gun contains a negative electrode that creates a circuit when the gun is brought close to the metal. This electric spark caused by the circuit causes the gas to be heated into the plasma state of matter and reaches a temperature of about 16000à ¡Ã‚ ´Ã‚ ¼C. This extremely hot plasma then melts the metal that is being cut. The plasma cutter can be used to cut any metal. In the workshop it is used to cut stainless steel plates. Sandblasting equipment: Spartan engineering 800M pressure vessel 200 L capacity The purpose of the sandblasting equipment is to clean and remove paint from the surface of metal components which then prepares the surface to be spray painted. 2.1.2.6. TASKS OBSERVED Due to the nature of the precision and accuracy required to complete the jobs, most of the time in the workshop was spent observing and assisting. The following jobs were in progress: Manufacturing and assembly of waste buckets Waste buckets are used around the mine for different waste material. These waste buckets are made by the mine boilermakers. Three waste buckets were being built for use around the mine. Plates for the structure had to be cut, bent and welded together using a cutting torch, bending machine and welding machine. Basic side layout Basic front layout Wear plates Two sets of wear plates are used as sections of a vibrating beam in one of the assemblies in the plants One set of plates have six holes through which it fastens the beam The second set of plates are rectangular and support two springs Because of the magnitude of the forces acting on these wear plates, bearing failure of the plates occurs during operation. This wear is however allowed and monitored for a period of time before the beams are then removed and the worn out plates cut off New wear plates were manufactured according to specification Clamps for pipes Clamps were manufactured to fasten the pipes used in the plants Haulpak truck operators cab Boilermakers assembled the frame of an operators cab for one of the Haulpak trucks. Drawings were supplied giving detail of the cover plates that had to be fabricated, as well as assembly drawings to show the final required layout. The welds utilised were to be either 3 or 6 mm one-sided fillet welds. The M12 nuts that were used to assemble the frame also had to be tag welded. Extractor fan piping system Maintenance on the plants requires occasional replacement of the piping on the extractor fan system. A 6 pipe assembly was manufactured to replace the old system. Flanges were cut and holes for bolts were punched. Pipes were cut to the appropriate lengths and shapes after which flanges were welded onto the pipes. 2.1.3. GG 3/4/5 AND WASTE MANAGEMENT WORKSHOP 2.1.3.1. INTRODUCTION The GG 3/4/5 and waste management workshop at Grootegeluk mine is responsible for the mechanical and electrical maintenance of the GG 3,4 and 5 plants as well as the system set up to convey waste to the dumps. A wide variety of systems, from substations to conveyor belts, are the responsibility of the artisans in this workshop. Time was spent with fitters and electricians to gain an understanding of the tasks required. 2.1.3.2. TASKS COMPLETED Replacement of motors in GG 5 tunnel: After completing the necessary safety protocol the first task was to replace two 380 V electric motors in the GG 5 feeder tunnel. The job required both electricians and fitters to complete and was completed by these steps: Since the motors operate on a 380 V control voltage, the first task was to cut the electricity supply to the motors by isolating the breaker in the substation The new motors, weighing in at 118 kg each were carried down into the tunnel using a sling wound around the motors The electrical supply wires in the cable box were disconnected After disconnection, the bolts on the old motors were loosened and the old motors were removed The new motors were then hoisted into place by a small handheld portable crane The bolts were fastened to keep the motors in place The electrical supply wires in the cable box were reconnected The supply to the motors in the substation was switched on The final step was to check if the motors were in fact turning in the right direction Proximity sensors: The job relating to the proximity sensors required the attention of electricians and required thorough investigation into and troubleshooting of the wiring circuit leading to the sensor on the feeder motors. The proximity sensors kept burning when they switch after connection. The function of a proximity sensor is to detect the presence of a metal component within 5 mm of its periphery and takes the form of a small circular cylinder with a threaded outer casing and electronic components inside. These sensors are used to indicate to the operator whether the lever at the electric motors has been engaged. This prevents the motor from running without being engaged to the feeders. The troubleshooting followed a sequential path: First the cable leading from the junction box at the motors was followed back to the PLC in the substation The basic function of a PLC (Programmable Logic Controller) is to provide an electronic interface between the supply and the components The PLC can be set up to perform certain tasks during certain time intervals and can also receive and respond to inputs from other electronic components From the PLC the total length of the cable was divided into 4 sections PLC to distribution panel Distribution panel to junction box Junction box to cable box Cable box to proximity sensor The connection at the proximity sensor requires the presence of a live and neutral wire At first glance the suspicion was that both the wires available were live wires, thereby causing a short circuit when the proximity sensor switches A Meggar insulation tester was then used to test each length of cable The basic function of a Meggar is to test the magnitude of insulation between the conductor and the earth A low reading on the Meggar indicates the possible presence of a short circuit or damage to the wire insulation After the use of the Meggar the proximity sensor was sequentially wired into the circuit at each section and tested Eventually the short circuit was found between the cable box and the proximity sensor Servicing of slip ring motors; The high voltage electric motors used to drive the waste conveyor belt system are 6.6 kV slip ring motors. These motors need to be serviced regularly to ensure efficient functioning of the system and to prevent the motors from being damaged. Equipment needed: Meggar insulation tester Blower Cleaning solvent Extension cord In order to complete the service of the slip ring motor, the following steps had to be taken: The electrical supply to the motor was cut off by isolating the breaker in the substation The side cover panels of the electric motor were removed Twelve brushes inside the motor were then removed from the brush holders Special care had to be taken to make sure that the brushes dont touch each other The Meggar insulation tester was then connected to the slip rings Negative terminal connects to the body of the motor Positive terminal connects to the slip rings An initial reading of 640 MÃŽ © was recorded The control voltage on the motor is an indication of the reading required from the Meggar For a 6.6 kV motor the reading from the Meggar should at least be 6.6 kÃŽ © The Meggar was removed and the inside of the slip ring and brush casing was blown out with the blower After blowing out dust and fine copper, the slip rings and the inside of the casing were wiped with a cloth and solvent to remove the last bit of fine copper The Meggar was reconnected and a reading of 3.22 GÃŽ © was obtained which was adequate The side cover panels were replaced and the electrical supply to the motor was switched back on Replacement of a 6.6 kV slip ring motor: The 6.6 kV electric motors used for the conveyor system eventually deteriorate in such a manner that they cannot be brought back to an acceptable operating state by means of a service only. These motors then need to be replaced and are sent away to be properly refurbished if it is possible. The following steps were followed: The electric supply to the motor was cut off by isolating the breaker in the substation The electromagnetic drum brake was released and moved out of the way The shaft coupling (jaw coupling) between the shaft on the motor and the shaft on the gearbox was disengaged The panels covering the electrical phase terminals and winding terminals were removed and the supply cables were disconnected The next step was to loosen the bolts at the bottom that fasten the motor to the structural frame The old motor was then hoisted by means of a forklift and removed The new motor was then put in place The electric supply was reconnected to the phase and winding terminals The bolts at the bottom of the motor were fastened slightly and the shaft coupling replaced to prevent excessive movement of the motor Alignment of the shafts was then done Shaft coupling was properly engaged The bolts on the structural frame were fastened 2.1.4. CONVEYOR BELTS 2.1.4.1. INTRODUCTION A brief introduction was given to a typical engineering problem to provide insight into what is often required from engineers. The belt on the waste management system leading to the dump needs to be extended. This is causing problems in terms of the power required from the slip ring motors. The extension of the belt causes additional load to be hauled by the motors. The motors that are currently installed trip when started up on full load. Time was spent studying and applying calculation to determine the power required from the motors to drive the conveyor belt system. 2.1.4.2. POWER REQUIREMENTS OF CONVEYOR BELT SYSTEMS The governing factors relating to the power requirements of a conveyor belt system concerns the provision of the necessary force to overcome the resistances posed by the entire system. These resistances can be divided into 5 subsections: Main resistances FH Secondary resistances FN Special main resistances Fs1 Special secondary resistances Fs2 Slope resistance Fst Main resistances: The main resistances that the motors have to overcome relate to the resistance of the rotating idlers, the resistance by the movement of the empty belt, the resistance of the material to horizontal movement as well as the resistance of the belt due to a slope along its conveying length. The resistance posed by the rotation of the idlers is manifested in the form of the frictional resistance of the idler bearings and seals. Rotational inertia of the idlers also contributes to the resistance posed. The belt creates resistance by means of the indentation resistance of the belt on the rollers. The flexure of the belt and the material that the belt is made of also resists the movement of the belt. An overall calculation to determine the resistance due to rotation of idlers and movement of the empty belt takes the following form: FH1 = (qro + qru + 2qb cos ÃŽ ±) x f x L x g qro Mass per unit length of rotating idler parts on the carrying side [kg/m] qru Mass per unit length of rotating idler parts on the return side [kg/m] qb Mass per unit length of the belt [kg/m] ÃŽ ± Angle of inclination [degrees/radians] L Centre to centre conveyor length [m] g Gravitational acceleration [m/s2] f Friction factor due to idlers The mass of rotating idler parts and the mass per unit length of the belt itself is determined by means of the tables of specifications given in the design catalogue or procedure followed. This requires the belt width which can be decided upon or determined mathematically. These masses are then converted into mass per unit length by means of the following formulas: qro = mro/ao [kg/m] qru = mru/au [kg/m] ao carry side idler spacing au return side idler spacing The decision then needs to be made with regard to the selection of a friction factor. This is also specified by the design catalogue. The Phoenix Conveyor Belt Design Fundamentals catalogue provides the following guidelines for selection: f = 0.017 for well aligned belts with smooth running idlers and low friction f = 0.02 for normal applications f = 0.023 to 0.027 for harsh operating environments, high frictional forces and the occasional overloading of the belt The centre to centre distance can be described as the distance from the head to the tail of the conveying system and encompasses the total possible length over which material can be conveyed. This is usually a parameter that is pre-determined by the specific situation. Finally the calculation of the resistance due to the rotation of the idlers and the empty belt force can be done. The next calculation that needs to be done relates to the resistance of the material to being conveyed horizontally. FH2 = qm x L x g x f x cos ÃŽ ± [N] qm mass of the material per unit length that is being conveyed To calculate the value of qm needed in the above formula, the total capacity or throughput of the belt needs to known. qm = Qm/v [kg/m] Qm The capacity or thoughput of the conveyor system [kg/s] v velocity of the belt [m/s] The calculation for the resistance of the material to horizontal movement can now be done. The resistance posed by gravity due to a slope/gradient along the conveying length also needs to be taken into consideration. Fst = qm x H x g [N] H change in the elevation of the belt along the length [m] After this calculation, all the major primary resistances needed have been calculated Special main resistances: The friction caused by the movement of the belt past the chute flaps is regarded as an important factor that needs to be calculated as part of the power requirements. Secondary resistances: Secondary resistance to the movement of the belt takes into consideration the detail relating to the operation and design of the belt. When material is deposited onto the conveyor belt system, a force is required to accelerate the material in the direction of conveying. This force is manifested in the form of the change of momentum of the material when dropped onto the belt and. Additional resistance to movement is then imposed on the drive system. The presence of skirt plates in the vicinity of the chute to keep material from dropping off the belt causes more resistance to the movement of the belt. This resistance depends on the magnitude of the friction force between the belt and the plate as well as the length of belt in contact with the plate. Occasionally the skirt plates also cause the material to exert a force on the belt which leads to additional frictional resistance. Other secondary resistances also include the resistance caused by the pulley bearings and the wrap of the belt around the pulleys. Special secondary resistances: Additional systems installed on the belt can also cause resistance to the movement of the belt. The basic operation of belt cleaners leads to friction forces being present between the belt and the material as well as between the material and cleaners. These friction forces, combined with the forces of the discharge ploughs, impose an additional load that need to be overcome. The inversion of the belt at the head and tail causes resistance to movement due to the combined effect of the flexure of the belt material and the friction of the pulleys. When designing a long conveyor belt system, the magnitude of the primary resistances generally exceeds the magnitude of the secondary resistances. To simplify the resistance calculations, the secondary resistances are simply accounted for by means of a correction factor on the primary resistances. C = 0.85 + 13.31L-0.576 for 10 < L < 1500 C = 1.025 for 1500 < L < 5000 L Conveying length [m] When this factor has bee

Sunday, January 19, 2020

Moko Jumbie

Mock Jumble, I personally find, is the most phenomenal traditional character as not only it is a tremendous sight to see but also the ability and skill that is required to portray such a gratifying character. More formally known as ‘Stilt walker' The Mock Jumble originated from West Africa. They had a God named ‘Mock' and the liberated slaves then added the word ‘Jumble' meaning ghost. The heights of the stilts were seen as the ability to prognosticate evil quicker than ordinary men.The sticks that they balance upon are between ten to fifteen feet, this character can't simply put on a costume and play the role, he or she just require a certain level of training. Not only the astonishing talent to balance on these lingering sticks but the mock Jumble is able to dance while maintaining their profound balance. I have lived in Trinidad my entire life and there was never a carnival season that I didn't see tallest one Mock Jumble parading the streets. They bring a sense of enthusiasm to the festival.Seeing them in their luminously, radiant colors splendidly moving in time with the rhythm of the music. They usually wear lengthened pieces of velvet, which covers the sticks and bring out the oomph within there performance. Traditionally they wore a Jacket and an elaborate admiral hat but in modern days they are seen wearing cloth wrapped around there heads and instead of Jackets, cloth which flows elegantly down there pants or some that even have excess material attached to there hands are used In modern days.Mock Jumbler's have a symbolic semblance sustained throughout the years In our culture. Whether seeing one In person for the fist time or again this carnival season I guarantee you will be nothing but mesmerism's. I hope one day I acquire the elite balance which Is required to run with the ball of this majestic art.

Saturday, January 11, 2020

Public Health Essay

Edwin Chadwick was a very effective campaigner on many different health issues; a few of these things were; working conditions, poor sanitation and poor housing. Chadwick was also known as one of the founder fathers of public health also as the sanitary movement. His report was associated with the environmental factors of poverty and ill health. He then engaged in the help of civil and medical engineering professionals to carry out his idea, this idea were to improve the general health of the population and the general public. Chadwick made recommendations to set up a local authority to deal with the sanitary issues that were in public health. Six years later after Chadwick’s guidance to the National Public Health Act (1894) was passed on board of health establishments. The public health authority will be very important because the promoting education and practice is seen as a key European regional priority and achieving improvements in health. The work of John Snow (1854) John Snow was also seen as another Father of Epidemiology. Epidemiology means the study of diseases in the human population. Snow was also intrigued about drinking water in the spread of Cholera disease and had come up with the theory that the people who had been drinking the water were the ones that had contracted the disease and were more likely to get the disease to those who had not drunk the water. He then plotted the cases of Cholera on a map and discovered that the people that were ill were all getting their water from the same water pump, located near the river Thames, which was contaminating the drinking water with sewerage. The connection between contaminated water and Cholera disease was then established before bacteriology was able to recognise the causative organism. John Simon and the 1866 Sanitary John Simon was seen as the third founding father of public health. Simon succeeded Chadwick in his role in public health administration, as he worked thoroughly with the engineers and he also assisted in the installation of the sewage system in the 1850’s and 1860’s. Simon also had a profession of a physician and then followed on to become a medical officer to the board of health in 1855. The chief engineer of the sewage system was Joseph Bazalgette. In 1866 the sanitary act placed a duty of inspection on local authorities and then decided to extend their range of sanitary powers. 2. The significant Public Health Advances in the 20th Century The Beveridge Report (1942) The Beveridge report was issued by an economist and social reformer, which was combined with the development of the welfare state, he was named William Beveridge. After the second world war the government promised reforms that would create a more equal society and then ask Beveridge to write a report on how to support people on low incomes (A report on the ways that Britain could fix itself). The new MP Clement Attlee published the introduction of the welfare state plan in the 1942 Beveridge report. In 1942 he then recommended the government to figure out the ways to figure out the 5 giant evils, these were, ‘want, disease, ignorance, squalor and idleness’. Beveridge did many reports oh which included; all working people to pay weekly contribution from their wages (TAX), also In return, benefits would be available to, the sick, the unemployed, the retired and the widowed. Founding of the National Health Service (1948) In 1948 the minister for health was Aneurin Bevan. He was the person who made (NHS) known. The National health service was made in 1948, which it’s main priority was to provide free health care/treatment for all. A national system of benefits was broadcasted to provide social security so the members of the population would be protected ‘from cradle to grave’. The NHS gather up to 10% from central taxes, this makes it fair for the rich to pay a bit more than the poor, Bevan saw this as a crucial part of the scheme. The care is free when needed but later chargers for additional needs were then added on if prescriptions and dentistry treatments were needed. Everybody in Britain is entitled to free care, even people who come visiting the country. The Acheson report into inequalities in Health (1998) The Acheson report highlights the reality of differences in health and their connections to different social classes. This shows overall downward flow mortality from 1970 – 1990. Donald Acheson made a list of 39 recommendations for addressing the problems following the inequalities of health. These included a number of things such as; improving the standards of education, making restrictions to smoking in public places and tackling alcohol misuse and also increasing benefits for certain groups of people. The 3 areas that are most crucial are; all policies likely to have an impact on health should be assessed in terms of their impact on health inequality, a high priority should be given to the health of families with children and further steps should be taken to reduce income inequalities and improve the living standards of poor households. Saving lives: Our healthier nation (1999) The labour government created this strategy to tackle poor health after it came into power in 1977. This has links to the Acheson report, as they were also trying to find out the main causes of the ill health. These included unemployment, pollution, low wages, crime and disorder and poor housing. They had main targets which were to reduce the death rates from various killers these were; cancer, coronary heart disease and stroke, accidents and mental illness. To achieve these they decided to put in in more money which was  £21 billion to secure a healthier population, tackle smoking as it was classed as the single biggest preventable cause of poor health, intergrating government and local government work to improve health, stressing health improvement as a key role for the NHS and pressing for high health standards for all, not just the privileged few. 3. The significant Public Health advances in the 21st century Choosing health: Making healthy choices easier (2004) The white paper of 2004 recommended a new approach to public health. This reflected a rapidly changing to society, this included the use of IT to make them think about how they might be able to improve there health. There has been acknowledgement of the governments role in promotion of social justice and they have made an effort to tackle wider causes of ill health and equality. The white paper outlined some important ways to help people make informed choices about their health, they were based on members of the publics views and what would work best for them, these were: Informed choice (people want to make their own decisions about choices that affect their health and to have credible and trustworthy information to help them do so), 2, Personalisation of services and third is social cohesion ( the public are clear that government and individuals alone cannot make progress on healthier choices. Real progress depends on effective partnerships across communities, including local government, the NHS, business, advertisers, retailers, the voluntary sector, communities, the media, faith organisations and many others). There are 6 main problems that need dealing with, there are; Obesity (improving diets), Alcohol related diseases (reduce the consumption), Smoking related problems (reduce it), Sexual health and Increase in exercise and improve mental health. Health Protection Agency (HPA) (2003) The HPA is an independent UK organisation that was set up by the government in 2003 to protect the public from threats to their health from infectious diseases and environmental hazards. Which also includes education and training. It does this by providing advice and information to the general public, to health professionals such as doctors and nurses and to national and local government. The agency identifies and responds to health hazards and emergencies caused by infectious disease, hazardous chemicals, poisons or radiation. It gives advice to the public on how to stay healthy and avoid health hazards, provides data and information to the government to help inform its decision making and advises people working in healthcare. From 2013 the HPA will become part of Public health England. The agency combines public health and scientific knowledge, research and emergency planning within one organisation and also works at international, national, re gional and local levels. National Institute for Health and Clinical Excellence (NICE) (NICE) is in charge for giving national guidance on the promotion of good health, this involves; independent, authoritative and evidence-based guidance on the most effective ways to prevent, diagnose and treat disease and ill health. Guidance is for the NHS, local authorities, charities and anyone with a responsibility for commissioning or providing healthcare, public health or social care services. There are 3 main areas of conduct to inform practice. Firstly, the clinical practice is to treat people with scientific diseases and conditions within the NHS. Secondly, public health is for promoting good heath and preventing ill health and thirdly developing technology with new and existing medications and treatments within the NHS.

Friday, January 3, 2020

Music And Children With Autism - 881 Words

Informative Speech Topic: Music and Children with Autism Purpose: To inform audiences about the effect of music to the children with autism Thesis: Music effect children with autism in a powerful significant way. Introduction: †¢ Do you know that 1 in every 68 children in the United States has an autism? (Miriam, 2014) †¢ Boys are more likely to have autism than girl. †¢ What is autism means to us? In 1943, according to Dr. Leo Kannar who was the first described autism as a distinct condition that caused by mother (WebMD, 2014). Lately, autism defined as a disorder present in childhood. Most of the time children will have different characterized by difficulty in social skills, communication, lack of relationship with peers or friends and abstract concepts. †¢ The causes for autism are unknown, but scientists’ agreement that autism is caused by abnormalities in brain development, neurochemistry, and genetic factors. †¢ There do have different kinds of treatment can effective in improving children with autism, such as Applied Behavioral Analysis (ABA), Treatment and Education of Autistic Related Communication Handicapped Children (TEACCH), Sensory integration, Speech Therapy, Occupation Therapy, Physical Therapy and more. †¢ According to Berge form the book Music therapy, sensory integration and the autistic child. Publisher from Jessica Kingsley at London, England in 2002 mentioned that music also is a treatment that utilized brain function, social interaction, andShow MoreRelatedThe Effects Of Music On Children With Autism1476 Words   |  6 Pagespeople are becoming aware of the problem of autism. With the overall number of children effected with autism increasing everyday, there is a panic to find a solution to better treatment and therapy. As a result, the costs of autism care could reach an all time high of well over one hundred billion dollars. Without proper research this number could rise even more. Therefore, there is a need for better groundwork to bring the predicted cost of autism care down. To assure that the explorartionRead MoreThe Effects Of Music Therapy On Children With Autism1406 Words   |  6 Pageshealing methods is Music Therapy. Music Therapy has been shown to help many people of all age groups, a specific group being children with autism. It helps benefit children with autism by improving their communication and social skills. Just simply listening to music calms and puts the brain at ease. Music Therapy is beneficial to this specific group because though they may have deficits socially, they show none when it comes to musical affect. This form of therapy allows autistic children to improve thoseRead MoreMusic Therapy for Children with Autism: Essay1433 Words   |  6 Pagesa setting with someone with autism spectrum disorder, music therapists make use of music as an educational tool to encourage learning. One of the purposes of music therapy for someone with autism is to provide the student with an initial assistance using melodious and rhythmic strategi es, followed by fading of musical cues to assist in simplification and transfer to other learning environments. Music therapy has been proven to decrease symptoms of children with autism, and could even facilitate motivationRead MoreMusic Therapy For Children With Autism Spectrum Disorder1699 Words   |  7 Pagesfunctions in life. This special kind of creativity can help some children on the autism spectrum with regulating behaviors, help them cope with anxieties and frustration, and improve focus and attention. This art may also help a child to socially interact with their peers. May also help a non-verbal child to open up and begin to communicate, whether it would be verbally or non verbally (New Hope for Autism: Music Therapy for Children with Autism and Asperger s Syndrome). Now imagine that you were a parentRead MoreThe Effects Of Music Therapy On Children With Autism Spectrum Disorder Essay2292 Words   |  10 PagesFrom 1997 to about 2007 the number of children with autism spectrum disorder has increase from 42,517 to about 258,305 and has risen since (Reschke-Hernà ¡ndez, 2011). With this rise of children who have autism, the rise of music therapy has since appeared greatly. When music therapy was first documented, the music was used in both group and individual settings. It was used with those who lacked social skills, those who needed rehabilitation, for self-expression, for psychological improvement and alsoRead MoreTherapies For Autistic Children.Individuals Take For Granted1678 Words   |  7 PagesTherapies for Autistic Children Individuals take for granted the luxury of embodying qualities such as communication, interaction, and social and motor skills. Although, individuals may determine the aforementioned skills are more difficult to obtain because of a disability. Autism or autism spectrum disorder is a developmental disorder that effects many children in the United States of America. Communication, interaction, and motor and social skills are usually effected in the autistic child. Read MoreAutism Is Not Just One Disorder And It Affects The Normal Development Of A Child s Brain1498 Words   |  6 Pagesthe United States will result in a child with autism. According to the Autism Society of America, it is reported as the fastest-growing disability, reaching epidemic proportions at a rate of 10-17 percent per year. Most parents recognize the signs and symptoms of autism anytime between birth and the first three years of their child’s life. Autism is classified as a neurological disorder and it af fects the normal development of a child’s brain. Autism is not just one disorder, but a group of relatedRead MoreBenefits Of Music Therapy On Children Essay1651 Words   |  7 PagesBenefits of Music Therapy in Autistic children Benefits of Music Therapy in Autistic children Literature Review Zuleima Haskins â€Æ' Introduction Autism Spectrum Disorder (ASD) is a group of conditions of the brain development. (Vries, 2015). The main characteristic of individuals with Autism Spectrum Disorder (ASD), is that they have difficulties to adapt and interact with other people. Also, individuals with Autism have problems with their development of verbal and nonverbal communicationRead MoreIs Music Therapy Effective For Mental Disorders?915 Words   |  4 Pages2016 Is Music Therapy Effective in Mental Disorders? Music therapy serves as an alternative therapy to help many people with mental disorders, such as autism. Autism, a disorder that interferes with communication and cognitive development in the brain. Thus, music therapy aids in medical treatment, for example, using music therapy to overcome communication barriers in some patients. As an alternative therapy, it sometimes negatively impacts some spectrum disorders, such as autism. AlthoughRead MoreTreatment Options Used for Children with Autism Spectrum Disorder1440 Words   |  6 PagesIntroduction Autism spectrum disorder (ASD) is known as a neurodevelopmental disorder that is capable of weakening communication, behavior and socialization. The term ASD includes three major subtypes which is Autism Spectrum Disorder, Pervasive Developmental Disorder and Asperger’s Disorder. About 9.0 in 1000 children have ASD and certain types of autism might not be identified until three years of life. The probability of boys being diagnosed is higher compared to girls (Bravaccio et al. 2013)