Saturday, August 31, 2019
All you need is love Essay
ââ¬Å"All you need is loveâ⬠, itââ¬â¢s perfectly described by the Beatles, and indeed it is. Love, the greatest gift of all, the most important thing for every single one of us. Loving your friends, your family, your pets, or, especially, that precious boy or girl, man or woman. Itââ¬â¢s the phenethylamine that makes us fall in love and gives us that incredible feeling when we see a special person. After a few years our body gets used to that hormone and the endorfines in our brain take over. They give us the warm, calm, safe feeling with a person. However we live in a society where we can all fall in love with the person we want, there are still places in the world where people canââ¬â¢t. Forbidden love or arranged marriages, it sounds way too outdated to us, but it unfortunately still exists today. When we say love, hate isnââ¬â¢t far away. Itââ¬â¢s mostly considered as the opposite of love, but we have to see it badly enough as a synonym. Lots of relationships go wrong and end up in hating each other or in very few cases it ends up in harming each other or even killing each other, which is called a crime of passion. Why does it go wrong? Wasnââ¬â¢t love the most precious thing on earth? Well, with love comes crave to be with a person, jealousy, fear to lose that person and discussions with that person, which leads often to distrust. When you are loved and have everything you need, itââ¬â¢s apparently not so difficult for too many people to flirt with others or even cheat. For many couples, the fourteenth of February is the day to prove their love, but for others itââ¬â¢s exactly the same average day. Every Valentineââ¬â¢s day tons of flowers and tons of chocolate are sold all around the world, not speaking of the incredible amount of money that is spent on that day. For the happy singles in the world, there is Singles Awareness Day (SAD), also on the fourteenth of February. Valentineââ¬â¢s day or not, we should prove our love also every other day of the year. There can be concluded that without love the world would not survive, we have to make love not war. Every person should be able to love the one he wants, without being judged, being harmed or being forced to. The Beatles are absolutely right: ââ¬Å"Love is all you needâ⬠.
Friday, August 30, 2019
How Music Affects the Brain Essay
Music: Itââ¬â¢s been ingrained in our culture since the first instruments were made. It is such a large part of our society; we incorporate it into our daily lives through our phones, television, and media. Music stimulates the brain through the pleasure center and sends us waves of emotions and reactions. As a DJ, music is essential to my lifestyle. Iââ¬â¢m constantly listening to different beats, tempos, and rhythms. Music rises and falls with the generation at that time. The brain is the commander of our actions; it tells us what to do, say, act, and react. Music is in our anatomy. It fills our blood stream with the treble of the bass, drop of the beats, and fast tempos. The brain interprets music by releasing certain chemicals, affecting our personality, and improving our motor skills. There are ten main parts of the brain that picks up music and interprets it for us. They are the corups callosum, motor cortex, prefrontal cortex, nucleus accumbens, amygdala, sensory cortex, auditory cortex, hippocampus, visual cortex, and the cerebellum. ââ¬Å"The four major parts in our brain that help us register music are, motor cortex, auditory cortex, nucleus accumbens, and the amygdalaâ⬠(Cooper). The motor cortex is in charge of movement; foot tapping, dancing, and playing an instrument. The auditory cortex evaluates our first perception of the sounds and analysis of tones we are listening to. The nucleus accumbens and amygdala are our emotional reactions to the music. All of these concepts in our brain send neurons to the body and we display either distaste or enjoyment when listening to music. According to ââ¬Å"Music Listening Releases Dopamineâ⬠which is a study conducted by researchers at McGill University in Canada. An initial 217 participants were narrowed down to 8 who consistently responded the same way when listening to music regardless of the listening environment (Moore). This proved that when listening to music our body releases a chemical called dopamine, which is a feel good pheromone. ââ¬Å"Humans have the ability to obtain pleasure from more abstract stimuli, such as music and art, which are not directly essential for survival and cannot be considered to be secondary or conditioned reinforces. These stimuli have persisted through cultures and generations and are pre-eminent in most peopleââ¬â¢s livesâ⬠(Salimpoor). Music not only affects us biologically but also on the outside. Our personality is a big faà §ade of who we are. We put that act out there for the world to see, to be accepted and follow status quo. ââ¬Å"Our emotions are affected by music, there are two kind of emotions: perceived emotions and felt emotions. This means that sometimes we can understand the emotions of a piece of music without actually feeling them, which explains why some of us find listening to sad music enjoyable, rather than depressingâ⬠(Cooper). ââ¬Å"When you are listening to your favorite melodies and harmonies it can trigger the brain to release large amounts of dopamine, a chemical that sends ââ¬Å"feel goodâ⬠signals to the rest of the body and plays a role in both motivation and addictionâ⬠(Listening to Music Can Prompt the Brain to Send Positive Signals throughout the Body). Professor Adrian North of Heriot-Watt University, Edinburgh, UK, has undertaken the largest study so far of musical tastes and personality type. ââ¬Å"He is an expert on music psychology and has carried out extensive research on the social and applied psychology of music, in particular the relationship between pop music culture and deviant behavior in adolescence, music and consumer behavior, and the role of musical preference in everyday lifeâ⬠(Collingwood). Over the course of three years, Professor North asked more than 36,000 people in more than 60 countries to rate a wide range of musical styles in order of preference. Certain aspects of personality were also measured by questionnaire. ââ¬Å"People do actually define themselves through music and relate to other people through it but we havenââ¬â¢t known in detail how music is connected to identityâ⬠(North). He believes that his results show why people can get defensive about what they like to listen to, as it is l ikely to be profoundly linked to their outlook on life. Since music is greatly incorporated into our society, it is easy to identify yourself with Iââ¬â¢m this kind of genre, and weââ¬â¢re that way mentality. By listening to only one kind of genre you are not exposing yourself to other types and not allowing yourself to have a new perspective on things. Also with music being in our everyday lives are it is especially important to be aware of what kind of music we are listening too. The choice of song you choose to relish in could make or break your day. Another important aspect of how music interacts with the brain, is how it improves our motor skills. By listening to music ourà neurons are registering the beats, tempos and rhythms; which gets us tapping our feet and swinging our hips to the rhythm of the beat. In 1911, an American researcher, Leonard Ayres, found that cyclists pedaled faster while listening to music than they did in silence. This study was done again in 2012 showed that cyclists who listened to music required 7% less oxygen to do the same work as those who cycled in silence. ââ¬Å"This happens because listening to music can drown out our brainââ¬â¢s cries of fatigu e. As our body realizes weââ¬â¢re tired and wants to stop exercising, it sends signals to the brain to stop for a breakâ⬠(Cooper). Listening to music competes for our brainââ¬â¢s attention, and can help us to override those signals of fatigue. Music is a motivator, not only can we push through the pain but work out longer. When working out we tend to play upbeat, fast paced, heavy temp music to get our heart beating. Certain types of music have a higher bpm (beats per minute) than others. For example, disco only has 120bpm meanwhile Dubstep a form of electronic dance music infused with base drops and screeches has 150bpm. Our bodies benefit by the type of music we listen to when we work out because it gets our blood pumping and our hearts beating faster, which keeps our body in shape. In conclusion, music has impacted many lives. It has influenced cultures, generations, movements, and our anatomy. Music is essential to our biology because it releases hormones that make us feel good, and emotions that are viable to our existence. Itââ¬â¢s an interesting concept though that a bunch of sounds, rhythms, and be ats can be pieced together to create a beautiful piece of musical art to be heard and enjoyed by billions. For me as a DJ music really stimulates my brain. Whenever Iââ¬â¢m listening to Dubstep which is at 150 bmp, it gets me pumped up and ready to go! If it was not for music then we would not have a sense of identity, or belonging. Music is a channeling force, it is available to everyone and you can get lost in it and forget your problems. Also when we are working out music is keeping us motivated to push through our weakness and is our aid in getting into shape. Without the piecing together of bass drops, sirens, scratches, or any other effects on music our mind would be a silent place. Works Cited Collingwood, Jane. ââ¬Å"Preferred Music Style Is Tied to Personalityâ⬠Psych Central. Psych Central, 30 Jan. 2013. Web. 02 Dec. 2013. Cooper, Belle B. ââ¬Å"How Music Affects and Benefits Your Brain.â⬠Lifehacker. Kinja, 22 Nov. 2013. Web. 02 Dec. 2013. ââ¬Å"Listening to Music Can Prompt the Brain to Send Positive Signals throughout the Body.â⬠Washington Post. The Washington Post, 01 Mar. 2011. Web. 03 Dec. 2013. Moore, Kimberly S. ââ¬Å"Your Musical Self.â⬠Psychology today. Psychology today, 28 Feb. 2011. Web. 02 Dec.2013. North, A. C. and Hargreaves, D. J. (2008). The social and applied psychology of music. Oxford: Oxford University Press. Web. 03 Dec. 2013. Salimpoor, V.N., Benovoy, M., Larcher, K., Dagher, A. & Zatorre, R.J. (2011). ââ¬Å"Anatomically distinct dopamine release during anticipating and experience of peak emotion to music.â⬠Nature Neuroscience, 09 January 2011. Web. 02 Dec. 2013.
Thursday, August 29, 2019
Analyzed and Discussed Self Career management â⬠Free Samples
People demonstrate three type of career self-managing behavior that includes positioning, influence and boundary management. The behavior of the people eliminates any existing carrier barriers and provides a vocational adjustment. Career self management has become one of the integral aspects of professionals that helps to develop goal for an individual along with a layout plan by assessing oneââ¬â¢s strengths and weaknesses. After effective planning and evaluating, one is able to successfully execute his/her career plan in a smooth fashion that eventually leads to career advancement and brings career satisfaction to the employee. Thus, career self management is a process through which an individual collects relevant information that is required for career progression through self assessment and identifying opportunities. As the case study illustrates the career life of Dave Armstrong, who was born and brought up in Texas and became the President of a subsidiary company of Thorne Enterprises. After making consistent efforts for eighteen months, Dave left the company to join life insurance business and lead a comfortable life. In Spite of earning a handsome salary, Dave faced the challenge of not been able to take a vacation with his new job. After working day and night for insurance job, Dave got accepted into Harvard Business Review. Now he has to make a career decision between three jobs prospects that seems attractive to Dave. Dave is confused between the three job prospects as the job he chooses is going to define his future career and an inappropriate decision could mess up his future career prospects. The report would aim to discuss the above case by analyzing all the three different job opportunities that Dave has as of present in order to provide suitable recommendations based on the theories discussed in literature review. Career self management is the process of gathering the relevant information regarding oneââ¬â¢s career through self assessment and recognizing opportunities. This section would try to cover the importance of career development and making an intelligent career choice by applying the existing knowledge. The literature review would also encompass employability skills and factors for an individual. Further, work life balance would be illustratively presented to demonstrate the importance of managing career in an individualââ¬â¢s life. According to Inkson (2007), there are various stages of career in an individualââ¬â¢s life that could either be because of various roles available in the society or personââ¬â¢s physical change over a period of time. He described theory of career development, which was discovered by Donald Super, as a framework for career guidance by focusing on the attributes and development of individuals. The theory stated that each and every profession has a unique requirement in terms of personal characteristics and the people are attracted towards these characteristics. The author focused on work roles of an individual that could vary from family role to professional role and emphasized on balancing oneââ¬â¢s personal life with the job. The authors Arthur, Khapova & Richardson (2017), illustrate through various case studies and examples how an individual can take ownership of work and life by making an intelligent career choice. The authors have very well described an intelligent career that involves the knowledge of an individual acquired over the period of years. The authors have also focused on the working style and methods that involves the application of the acquired knowledge and knowledge extension through consistent learning process. According to the authors Inkson & Arthur (2001), in order to manage the career one must skillfully match individual and organization needs. The authors have described the processes of investment, portfolio development, capital growth that leads to career advancement. According to Briscoe et al (2012), there are two major career concepts including protean career and boundaryless career. Protean career has a value driven approach and is independent of the external career influences. A boundaryless career does not perceive structural constraints and the decision is taken by considering all the aspects that could include work family reasons. The authors construed that boundaryless employees are not necessarily less committed to the organization. The authors Briscoe & Finkelstein (2009), also supported the idea that boundaryless career and protean career attitudes are differentially correlated. Rodrigues & Guest (2010) stated that the concept of boundaryless career is fuzzy by drawing the potential of another method to conceptualize career boundaries. According to the author Bridgstock (2009), an individual must have employment skills in the fast changing global business context. They must look forward for continuous development by acquiring knowledge and skills with the changing information and knowledge intensive economy. The stress was on developing generic skills that is defined as transferable skills that are considered vital for employability. Further, an individual must possess attributes such as lifelong learning and adaptability. According to Rothwell & Arnold (2007), employability has become one of the topmost concerns for the individuals and their key goal is to be able to manage their careers effectively. à The authors Wolff & Moser (2009) stated that networking has a huge impact on career by stressing on six components that considered the impact of internal & external networking and building, maintaining and using contacts. According to Janasz & Forret (2008), networking helps to develop and maintain relationship with others that opens opportunities for an individual. The author Sturges (2008), identified the connection between career self management and managing work life harmony. He construed through the research that an individual may be involved in various career self management behaviors as per the career goal. The author identified one of the behaviors as creating a balance between work and life and people who are only focused towards their career could destruct their work life balance. The author also tried to demonstrate the influence of career stages on career goal and behavior of an individual to construe that career attitude and behavior has a great impact on work life balance and is the major concern of younger members irrespective of their family responsibilities. The authors Weng & McElroy (2010), studied the impact of career self management and vocational self concept crystallization on the effectiveness of an individualââ¬â¢s decision. The study revealed that career self management has a positive impact on effectiveness of job decision and vocational self concept crystallization. The study also revealed that vocational self concept crystallization has positive impact on effectiveness of job decision. The authors Abele & Wiese (2007), analyzed the self management strategies including development of goals, goal pursuing behavior, career planning and comparative judgment. The authors claimed that general strategy is connected to domain specific strategy, which can be further linked to the results. Dave has been offered three job opportunities and all the three of them have some pros and cons associated with them due to which Dave is facing pressure of selecting the best job opportunity that offers a bright future. Job A is the best job prospect for Dave and in order to understand it the report would discuss the pros and cons of all the three jobs. Job B has been offered by one of the oil exploration company in Houston and require Dave to invest an amount of 100k dollars that is one third of the total equity. Dave would receive around 60, 000 dollars as an annual compensation. The deal does not have any attractiveness as the business would cease to exist after two years period. Further, Dave would also lose the opportunity to operate in partnership in case the oil and gas glut dries up before they launch the company. All he would be getting is just 8% commission for his performance. If Dave wishes to make an intelligent career choice, he would never chose this option as there is not future and security in the job in terms of salary and security. Further, Dave would also have to make an initial investment of 100k $ that could just go in vain if he loses the equity partnership. Job C is the most convenient job for Mr Dave and is also the top choice of his wife. The job offers Dave a secure future with 45k dollars salary. Dave would be required to work for oil and gas investment fund in the firm and would be analyzing the properties of oil and gas. The job is a perfect combination of security and salary for an individual. Now analyzing the job from the theory of intelligent career would suggest that Dave must evaluate alternatives before choosing the option. Dave has already received the offer of more than 50k dollars from other two companies due to which the attractiveness of the offer goes away. Dave has graduated from Harvard Business School and thus, has the caliber to acquire a job with higher salary. This job may offer him security but does not offer a good salary. The career intelligence theory stated that one must have a better understanding of oneself before making a career choice (Arthur, Khapova & Richardson, 2017). Further, one must also match th e quality of organization and an individual before selecting the organization (Inkson & Arthur, 2001). From the two theories, it can be construed that Daveââ¬â¢s skills and the organizational skills do not match effectively since Dave is very ambitious and seek to groom himself through continuous learning process. The organization does not offer him a justified position and underestimates his talent and potential strength. Thus, Dave must not go for this job opportunity. Job A is being offered by Mr Thorne that would require a huge investment from Dave. Thorne has offered Dave an offer to work with him for piggyback rail terminal that is situated between Dallas and Houston. The project is being studied by a group of business school students to evaluate the feasibility. The offer seems attractive as it is likely to attract business from Dallas and Houston. The cost of land on which the project would be built is 1/100 the cost of industrial property located in Dallas or Houston. The job offer seems lucrative if considered from the salary and future perspective. Dave would receive around 50k-70k salary along with bonus and equity share in the business. Dave must make an intelligent career choice here by applying all his knowledge and evaluating the external factors. He must also analyze the situation from an alternative perspective. He must consider that he would also be required to invest a huge amount of 200k to 300k dollars for which he would have pu t up his entire savings in the project. He would also have to make many adjustments in his lifestyle and his wife would also have to bear it. Further, the business may or may not be able to generate results in future that could devastate the entire career of Dave. Now from self career management theory, it can be construed that Dave must consider from the aspect of work life balance (Sturges, 2008). The job may cost Dave and his wife a huge fortune in future and thus, he must consider the opinion of his wife as well in order to secure their future. In spite of several cons, this is the most lucrative offer for Dave because of its unique idea and low cost strategy plan. From the given information and present scenario, the plan also promises to yield great results in future. Also his wife is also looking forward for him to be happy and according to the theory of career self management, the quality of an individual and organization must match that can be witnessed in this case. Dave ha s huge potential to build a great business empire through his determination and ambitious nature. Thus, using the theory of career self management, it can be construed that Dave must go for Job A to work with Mr Thorne where he can utilize his potential strength and become a successful businessman. The report has successfully analyzed and discussed self career management through the case study of Dave. Career self management has become an integral component for a professional. A professional must assess his strengths and weaknesses in order to develop a specific career path for him and must analyze the external factors before making any career choice. They must look forward for continuous development by acquiring knowledge and skills with the changing information and knowledge intensive economy. The stress was on developing generic skills that is defined as transferable skills that are considered vital for employability. After thorough and deep investigation of the case study, the report evaluated Job A as the best alternative for Dave. Job B did not have any future in terms of business as the business was likely to disappear. The job also did not have any partnership promise in future as it was likely to go if oil and gas glut dries. Further, job did not match with the skills of Dave who is ambitious and determined for his career. Job C was evaluated as the most convenient job that also did not match up with the skills of Dave. Dave is most likely to get frustrated with the job after sometime because of his ambitious nature. Further job also did not offer a good pay to Dave. Job A was evaluated to be risky and required a huge amount of investment but is the most feasible and lucrative job for Dave as it matches with the skill sets of Dave. Abele, A.E., & Wiese, B.S. (2007). The Nomological Network of Self-Management Strategies and Career Success. Labor and Socio Economic Research Center, 7, 1-30. Arthur, M., Khapova, S. & Richardson, J. (2017). An Intelligent Career: Taking Responsibility for Your Work and Your Life. New York: Oxford University Press Bridgstock, R. (2009). The graduate attributes weââ¬â¢ve overlooked: enhancing graduate employability through career management skills. Higher Education Research & Development, 28(1), 31-44. Briscoe, J. P., & Finkelstein, L. M. (2009). The ââ¬Å"new careerâ⬠and organizational commitment: do boundaryless and protean attitudes make a difference?.à Career Development International,à 14(3), 242-260. Briscoe, J. P., Henagan, S. C., Burton, J. P., & Murphy, W. M. (2012). Coping with an insecure employment environment: The differing roles of protean and boundaryless career orientations.à Journal of Vocational Behavior,80(2), 308-316. de Janasz, S. C., & Forret, M. L. (2008). Learning the art of networking: A critical skill for enhancing social capital and career success.à Journal of management education,à 32(5), 629-650. De Vos, A., & Soens, N. (2008). Protean attitude and career success: The mediating role of self-management.à Journal of Vocational behavior,à 73(3), 449-456. Inkson, K. & Arthur, M. (2001). How to be a successful career capitalist. Organizational Dynamics, 30(1), p 48-61. à Inkson, K. (2007). Understanding Career: The metaphors of working lives. Thousand Oaks: Sage Publications Raabe, B., Frese, M., & Beehr, T. A. (2007). Action regulation theory and career self-management.à Journal of Vocational Behavior,à 70(2), 297-311. Rodrigues, R. A., & Guest, D. (2010). Have careers become boundaryless?.Human Relations,à 63(8), 1157-1175. Rothwell, A., & Arnold, J. (2007). Self-perceived employability: development and validation of a scale.à Personnel review,à 36(1), 23-41. Sturges, J. (2008). All in a day's work? Career self?management and the management of the boundary between work and non?work.à Human Resource Management Journal,à 18(2), 118-134. Weng, Q., & McElroy, J. C. (2010). Vocational self-concept crystallization as a mediator of the relationship between career self-management and job decision effectiveness.à Journal of Vocational Behavior,à 76(2), 234-243. Wolff, H. G., & Moser, K. (2009). Effects of networking on career success: a longitudinal study.à Journal of Applied Psychology,à 94(1), 196. End your doubt 'should I pay someone to do my dissertation by availing dissertation writing services from
Wednesday, August 28, 2019
Executive toy Essay Example | Topics and Well Written Essays - 1250 words
Executive toy - Essay Example However, the interconnection between the toys and technological development is not one-way. Amazingly, the contribution of toys to the progress of technology is quite significant. The article "The Antikythera mechanism" emphasizes that The origins of much modern technology, from railway engines to robots, can be traced back to the elaborate mechanical toys, or automata, that flourished in the 18th century. Those toys, in turn, grew out of the craft of clockmaking. And that craft, like so many other aspects of the modern world, seems to have roots that can be traced right back to ancient Greece. Not only technological mechanisms but the simplest and beloved by many children dolls, animal figures and tops originated in either ancient Greece or Rome. Children in Greek and Roman families played with balls, clay dolls and clay rattles, hand carts, hobby horses, hoops and spinning tops. The playtime often was used to teach children to use things the adults use in everyday life. Through the toys and games children were introduced to the important activities of household economy, carpentry, hunting, etc. It became obvious in the time of Dark Ages & the Middle Ages. When children were old enough to play parents also taught them to work and use weapons and tools through the play. "They would play outdoor games using pebbles, knucklebones and barrel hoops. Some would have hand made wooden toys such as tops, hobby horses and puppets." (Brief history) Attitudes have changed over the centuries. Puritans believed wanted to ban Holy days which were traditionally days for celebrating and playing games and toys became rare. Victorian parents believed that children should not play games on a Sunday but they were allowed to play with Noah's Arks because of their religious significance. Another factor that influenced the development of toys besides religious and social attitudes was definitely technology. The 18th century saw mass produced toys that were cheaper to make and buy. "Wealthy parents spent their money on printed instructional toys that would aid learning and morality, such as pictorial alphabet cards, dissected map puzzles, books and board games" (The Brief History). In the 19th century the main retailers of technical toys were opticians who sold steam engines, magic lanterns, building blocks and optical toys such as the kaleidoscope and zoetrope. Many famous toy companies started business in the 1890s and 1900sWorld War II brought toy production to a standstill. There was a revival in home made toys and knitted toy patterns became popular. In the 20th century, the cinema and later TV, has had a major influence on the retail of toys. Advances in technology have provided toy makers with new ideas for models and toys to replicate the society. Models and building bricks enable children to play imaginatively constructing and creating their own versions of the things they see around them. The popularity of these toys is often governed by events, such as the growth of the railways in the 19th century or the advent of space travel in the 20th century. Trains were the first form of modern transport to be copied as toys and wooden pull-along trains were available from the 1840s onwards. "By the 1870s the wooden toy train was replaced by tinplate locomotives and tenders with carriages which were often
Tuesday, August 27, 2019
The Art of Film Paper 1 Essay Example | Topics and Well Written Essays - 250 words
The Art of Film Paper 1 - Essay Example From the events of the story, we learn that people can go to all lengths to seek revenge and in the quest of seeking revenge; many innocent people may incur injury.1 Yes, they have. In the issue of the characters suffering from amnesia, it portrayed the measures the characters took to contain information. An example is Leonard tattooing information on his body to remember every incident. Yes, it does. The beginning clearly depicts the events of death that made the lead actor Leonard transform from being a detective to being a murderer. At the end of the movie, it is clearly shown how Leonard was out to kill Teddy, while the movie started with a dead body. Not all narrative lines achieve closure. In the instance of the murder of Teddy, one is not sure if the murder took place. Leonard has amnesia. One does not know if he remembered Teddyââ¬â¢s face and came back kill him. It is not known, if Teddy remembered the person that killed his wife or if he avenged the death of his wife. 6a). How does the narration present story information to us? Is it restricted to one or a few charactersââ¬â¢ knowledge, or does it range freely among the characters in different spaces? The story concentrates on one person, Leonard. The whole story is about him and his quest for
Monday, August 26, 2019
Strategies to counter global terrorism attacks Essay
Strategies to counter global terrorism attacks - Essay Example Strategies to counter global terrorism attacks Further, more states are engaging in state terrorism, a situation termed illegal by the international bodies aiming to combat terror. Cognizant of the situation, both internal and external states are inclusive in the war against state terrorism. Therefore, effective state-counterterrorism should entail associations between the society and governments to ensure state compliance with terrorism regulations. Firstly, achieving the situation entails thorough mobilization and meetings between the residents and stakeholders. Secondly, it involves training the individuals on how to recognize potential terrorists among themselves. Finally, the state needs to avail enough resources to combat terrorism. Seemingly, in the US, efforts have been diverted since the 9/11 attacks on Pentagon, and the Capitol Building in Washington, DC. Further, attacks to the Worldââ¬â¢s Trade Center Complex Towers in New York caused havoc during the wee hours of September 11. The September 11 attacks indicated sophistication, excellent coordination and aimed at the firmness of USA economy, military, and political fame. Since then, deadly attacks have followed in various states such as Mumbai in China, Beslan, and Bali in Indonesia, not forgetting Madrid, London, and Moscow in Russia. Those groups that relied on terrorism have possibly faced elimination, but new groups are emerging posting a new threat to the target states. The world still suffers severe terrorist attacks more than a decade after the 9/11 attacks in the US (Lutz and Brenda 1).
Sunday, August 25, 2019
Touch Screen Alarm Clock Marketing Plan Term Paper
Touch Screen Alarm Clock Marketing Plan - Term Paper Example l ensure that it successfully meets the requirements of every customer by charging reasonable price for the product range and provide features in the alarm clock accordingly. Since the business environment is becoming fierce and competitive, it has become vital for the companies to carry out a market research before launching the product in the market (Ranjhita, 2011). With the help of the research, it was found that the touch screen alarm clock has a huge potential for the new entrants and entry barriers are relatively low (Cako, 2005). The new entrants can be very challenging to deal as the competition via new entrants gets fiercer in the business market. In US, every top ranked brand is offering its products but there are some areas where people have limited access to these clocks. This limited access creates an opportunity for other organizations to market their products. The three areas identified by our company are Ohio, Florida and California; the geographic segmentation has been done to get a clear picture of the type of customers that the company will be targeting. From the analysis of the research findings, it is decided that the brand name will be ââ¬Å"Express Alarm Clockâ⬠and it will comprise of two models on the basis of features. One model will be simple with fewer features and other will be with complicated features and it will consist of extremely high technical features. The two models are decided upon according to the needs and demands of the target market. The other aspects of the marketing plan are discussed below in detail. In order to cater the right target market, it is important that the target market is decided beforehand which will ensure that there will be certain number of consumers who would be willing to buy the product (Flink, 2011). The target market of this new touch screen Alarm Clock is as follows: Lifestyle: Depending on the life cycle stage; young children and adults who are fun-loving, adventurous and technologically savvy.
Product definition Coursework Example | Topics and Well Written Essays - 250 words
Product definition - Coursework Example It is one of the most famous fashion line in the contemporary society has attraction clients from a global perspective (Jacobs, 2013). The following are the major reasons why clients purchase this product taking into consideration the five levels of product definition: This is usually the basic product and clients tend to focus on the purpose, which the product was intended. In the case of Louis Vuitton Womenââ¬â¢s Trench Coats, clients focus on acquisition of the trench coats in order to provide warmth during rainy and cold seasons. In this level, the major focus of the clients to a product is based on all the qualities it possesses. In relation to Louis Vuitton womenââ¬â¢s Trench Coats, they are preferred due to: Their ability to repel rain; high quality of fabrics used to make the coats; their different sizes, thus able to fit people of different body sizes; and the high quality of buttons fitted. In this level, clients tend to have various aspects of expectation regarding a product. Specifically, many clients purchasing Louis Vuitton Trench Coats are majorly attracted by the high quality of design of the coats, which enables the coats to provide warmth in a comfortable manner even when undertaking some physical activities such as riding bicycles. In this level, clients tend to focus on the additional qualities of a targeted product. In the case of Louis Vuitton Womenââ¬â¢s Trench Coats, it has been preferred by a large number of clients from various parts of the world owing to the fact that it is a fashionable design and trendy. Louis Vuitton also offers clients a variety of trendy colors and designs that making it one of the most famous clothing lines in the global fashion arena. In this level of product definition, clients tend to focus on the future changes and additional features that may be made on their targeted products. In the case of Louis Vuitton womenââ¬â¢s trench coat, there have been new designs, with additional
Saturday, August 24, 2019
Exelence in public sector Essay Example | Topics and Well Written Essays - 1000 words
Exelence in public sector - Essay Example It is necessary to discuss strategies that AbilityOne Commission can adapt to improve their recruitment method and attract qualified candidates. In addition, it is crucial to examine the ability of the proposed plan to improve the performance of workers, enhance funding and determine the value of the project. Prior to making decisions on the best candidate, the agency will have a clear stipulation of job requirements and the qualities of needed for a particular job. In the past, the agency has not provided enough job descriptions. Consequently, there has been insufficient information concerning the rationale of a particular job, its position in the agency, job duties and productivity. A candidate will be required to provide information concerning his proficiency, quality of service and experience. Through this, the agency will attract competent and qualified candidates. The candidates will be evaluated during the recruitment process to establish whether they have the requisite requirements (Shorney, 2014). The procedure of job analysis would enable the agency to review of a particular job. The main objective of this plan is to examine the previous job description, candidate specification and come up with minor changes. It is necessary to change the duties and responsibilities, proficiency and experience to match the evolving environment. In addition, the agency will have to consider whether it is necessary to consider a particular job vacant and define whether it is full-time or part-time. In order to attract competent candidates, the agency will provide existing workers a chance to apply for a vacant position within the organization. Internal recruitment has many advantages. For example, it is morale boosting as it encourages workers to believe that there is room for progression within the agency. In addition, AbilityOne Commission will have additional information on competency and mind-set of an internal candidate and expedite
Friday, August 23, 2019
The DVLA System Case Study ( ISD) Essay Example | Topics and Well Written Essays - 1250 words
The DVLA System Case Study ( ISD) - Essay Example Therefore, these companies can immediately get in touch with DVLA for updating their vehicle data base. Individual is generally required to inform the DVLA when they buy or sell a used vehicle. If the registration document is a two part registration document (V5) then DVLA is to be informed as soon as the individual buys a used vehicle, generally by completing the back of the registration document. In case it is the three part (V5), then the person selling the vehicle must complete buyer details in the top (blue) section. Both the buyer and the seller need to sign the declaration. The seller then sends it to DVLA. If the registration certificate is V5C, then the seller is to complete section 6 new keeper or new name/new address details of the V5C. Both buyer and seller need to sign the declaration in section 8. Then the seller sends it to DVLA. This information will be passed on to the DVLA Distribution department. This department sorts out data depending upon whether the car is old or new. This finalized information is then kept in the ââ¬Ëcar information fileââ¬â¢ for further reference and action. VED department then generates the reports for further action depending upon the cost, size criteria of the cars. Reports are also generated about the mileage of cars and accordingly taxes are determined. VED also keeps track of the sense of discipline during, amongst the drivers. This helps in encouraging sensible drivers and punishing the errant onesââ¬â¢. DVLA sales department is also a source of revenue for the agency. It sells the personalized number plates to desirous oneââ¬â¢s. The information search department takes input from the system and helps in keeping track of all types of information. An entity is something that is supposed to have a distinct, separate existence and identity. In this category, generally we take person, place, thing, event, or concept, about which information is to be stored.
Thursday, August 22, 2019
Music Study Guide Essay Example for Free
Music Study Guide Essay Music is an art based on the organization of sounds in time. Also the universal language of man or something who knows Pitch is the relative highness or lowness that we hear in a sound Tone is a sound that has a definite pitch Interval is the distance in a pitch between any two tones Tones are separated by an interval called the octave Tones have a specific frequency in music Pitch range is the distance between the lowest and highest tones that a voice or instrument can produce Range of an untrained voice is between 1 and 2 octaves Dynamics are degrees of loudness or softness in music Loudness is related to the amplitude of the vibration that produces the sound Accent is an emphasis of a note Instrument may be defined as any mechanism that produces musical sound Register is the part of the tonal range of an instrument or voice Pizzicato- plucked string Double stop- two notes at once Vibrato- rocking the left hand while pressing down with the other. Throbbing expressive tone that causes small pitch fluctuations that make the tone warmer Mute- a clamp that veils or muffles that tone Tremolo- rapidly repeats tones by quick up-and-down strokes of the bow Harmonics- Very high pitched tones are produced when the musician lightly touches certain points on a string Woodwinds have little holes along their length that are opened and closed by the fingers or pads controlled by a key mechanism Flutes and piccolos are played by blowing across the edge of a mouth hole Recorders are played by blowing through a whistle mouthpiece Single-reed woodwinds are played by fastening a reed over a hole in the mouthpiece that vibrates when the player blows over it (ex- clarinet, bass clarinet, saxophone) Double-reed woodwinds use two narrow pieces of cane that are held between the musicianââ¬â¢s lips (ex- English horn, contrabassoon, bassoon) Bass instruments are played by the musician blowing into a cup- or funnel-shaped mouthpiece (vibrations of bass instruments come from their lips) Pitch of brass instrument is regulated by varying lip tension and by using slides and valves Mutes alter the tone color of bass instruments When a pianistââ¬â¢s finger strikes a key, a felt-covered hammer swings up against a string (greater the force on the key, more powerful the hammerââ¬â¢s blow, louder the tone produced) Damper comes down on the string to stop the vibrations when the pianist lets go of the key Damper pedal is the most important pedal, allows a pianist to sustain tones Una corda pedal, on the left, veils the sound Sostenuto pedal, in the middle, allows the pianist to sustain some tones without sustaining others Harpsichord has strings that are plucked. Controlled by one or two keyboards. Pipe organ has many sets of pipes controlled by several keyboards, including a pedal keyboard played the organistââ¬â¢s feet Tape studio was the main tool of composers of electronic music during the 1950s Synthesizers are systems of electronic components that generate, modify, and control sound Analog Synthesis is based on representing data in terms of measurable physical quantities Digital frequency modulation synthesis is based on representing physical quantities as numbers Sampling involves placing brief digital recordings of live sounds under the control of a synthesizer keyboard Instrument Digital interface (MIDI) is a standard adopted by manufacturers for interfacing synthesizer equipment Consonance is a tone combination that is stable. They are points of arrival, rest, and resolution. Dissonance is a tone combination that is unstable. Its tension demands an onward motion to a stable chord Dissonance has its resolution when it moves to a consonance The Middle Ages The Middle Ages spanned from 450-1450 Most important musicians were priests Church officials required monks to sing with proper pronunciation, concentration, and tone quality Church frowned upon instruments because of their earlier role in pagan rites Gregorian chant is a melody set to sacred Latin texts and sung w/o accompaniment Gregorian chant is monophonic in texture, its rhythm is flexible, w/o met.er, and has little sense of beat. The melodies tended to move by step within a narrow range of pitches. Used church modes as a scale. The Renaissance The Renaissance spanned from 1450-1600 The Renaissance mass is a polyphonic choral composition made up of the Kyrie, Gloria, Sanctus, and Agnus Dei Baroque Baroque era spanned from 1600-1750 Baroque era used violins a lot. Organ and harpsichord where the main keyboard instruments Baroque suite is a set of dance-inspired movements. It is made up of movements that are all written in the same key but differ in tempo, meter, and character. Usually in A A B B French overture is a common Baroque suite opening. Short Answer Middle Ages (450-1450) Renaissance (1450-1600) Baroque (1600-1750) Classical (1750-1820) Romantic (1820-1900) Contemporary (1900-now) 3 Composers per period: Middle Ages- Hildegard of Bingen, Perotin, Francesco Landini Renaissance- Josquin Desprez, Thomas Morley, Giovanni Gabrieli Baroque- Johann Sebastian Bach, George Fredric Handel, Henry Purcell Italian dynamic markings: Pianissimoppvery soft Piano psoft Mezzo Pianompmoderately soft Mezzo fortemfmoderately loud Fortefloud Fortissimoffvery loud Orchestras contain string, woodwind, brass, and percussion instruments. Symphonic bands contain brass, woodwind, and percussion instruments. Duple Meter- measure has two beats Triple Meter- measure has 3 beats Quadruple Meter- measure has 4 beats Gregorian chant is monophonic in texture, its rhythm is flexible, w/o met.er, and has little sense of beat. The melodies tended to move by step within a narrow range of pitches. Used church modes as a scale. Polychoral Motet- motet for two or more choirs, often including groups of instruments Brandenburg Concerto No.5 in D Major (1721), by Johann Sebastian Bach. Ritornello form, duple meter. Used a string orchestra and a group of soloists consisting of a flute, violin, and a harpsichord. Essays Compare and contrast two periods of music that weââ¬â¢ve learned Middle Ages and Renaissance Compare: Musicians worked in churches. The church remained an important patron of music. Vocal music was more important the instrumental music. Both had sacred music(Gregorian chant, Renaissance mass). Both used church modes as their basic scale of music. The cantus firmus (Melody used as the basis of a polyphonic choral) was used in both periods. Contrast: Musical activity gradually shifted to the courts in the Ren. Musicians had higher statuses in the Ren. Ren music sounds fuller than MA music. Bass register was used for the first time in the Ren, expanding the pitch range to more than 4 octaves. Invention of the printing press widened the circulation of music, and the number of composers and performers increased in the Ren. Ren music was more about men rather than God. Instruments were used more often in the Ren. Composers were no longer content to remain unknown; in the Ren they wanted fame and recognition for their works. Bachââ¬â¢s contributions to the Baroque period Bach was the mack daddy of Baroque music. His works show an astounding mastery of harmony and counterpoint, and they are used as models by music students today. With his set of six Brandenburg Concertoââ¬â¢s, Bach brought immortality to a German aristocrat, the margrave of Brandenburg. In Concerto No.5, Bach uses a string orchestra and a group of soloists consisting of a flute, violin, and harpsichord. This was the first time a harpsichord was given a solo in a concerto grosso. The harpsichordââ¬â¢s solo at the end of the first movement is spectacular. His audience marveled at this brilliant harpsichord solo within a concerto grosso, and audiences today are still blown away by it. Bach wrote fugues that were the peak among works in the form. In his collections of preludes and fugues, The Well-Tempered Clavier, Back explored with unprecedented thoroughness systems of tuning instruments that enabled a composer to write in all 24 keys, even keys with many sharps and flats. Bach also composed what is probably the most monumental setting of the Roman Catholic mass (Mass in B Minor). It was too long to be performed in a mass, so Bach was just probably being a show-off. Bach wrote about 295 church cantatas. Cantata No. 140 is his most famous.
Wednesday, August 21, 2019
History and Impact of Additive Manufacturing
History and Impact of Additive Manufacturing In the recent years, technology has been evolving at an exponential rate, due to important breakthroughs in research and development of new ways to produce efficient materials and structures. One of the most important technological step forward was the implementation of the extended use of Additive Manufacturing Machines, also known as 3D Printers. This revolutionary concept of Additive Manufacturing (AM) describes the technologies that build 3D objects by adding layer-upon-layer of material, whether the material is plastic, metal, concrete or maybe one dayà ¢Ã¢â ¬Ã ¦. human tissue? The history of AM Manufacturing: The first additive manufacturing equipment and materials were developed by Charles Hull in the early 1980s, and he called the process stereolithography, (Jane Bird 2012). Hull, who has a bachelors degree in engineering physics, was working on making plastic objects from photopolymers at the company Ultra Violet Products in California. Stereolithography uses an .stl file format to interpret the data in a CAD file, allowing these instructions to be communicated electronically to the 3D printer. Along with shape, the instructions in the .stl file may also include information such as the color, texture, and thickness of the object to be printed.( Gross BC, Erkal JL, Lockwood SY, Chen C, Spence DM -2014) By the early 2010s, the terms 3D printing and additive manufacturing evolved senses in which they were alternate umbrella terms for AM technologies, one being used in popular vernacular by consumer maker communities and the media, and the other used officially by industrial AM end use p art producers, AM machine manufacturers, and global technical standards organizations.(Ishengoma, Fredrick R.; Mtaho, Adam B.-2014) Many other companies have since developed 3D printers for commercial applications. Hulls work, as well as advances made by other researchers, has revolutionized manufacturing, and is poised to do the same in many other fields-including medicine. (Gross BC, Erkal JL, Lockwood SY, Chen C, Spence DM -2014) 2. The types of AM Processes Although the term 3D Printing is used as a synonym for all Additive Manufacturing processes, there are actually lots of individual processes which vary in their method of layer manufacturing. Individual processes will differ depending on the material and machine technology used. Hence, in 2010, the American Society for Testing and Materials (ASTM) group ASTM F42 Additive Manufacturing, formulated a set of standards that classify the range of Additive Manufacturing processes into 7 categories (Standard Terminology for Additive Manufacturing Technologies -2012). These categories are: VAT Photopolymerisation which refers to using a vat of liquid photopolymer resin, out of which the model is constructed layer by layer; Material Jetting, which is used to create objects in a similar method to a two-dimensional ink jet printer. Material is jetted onto a build platform using either a continuous or Drop on Demand approach; Binder Jetting, which uses two materials; a powder based material and a binder. The binder is usually in liquid form and the build material in powder form. A print head moves horizontally along the x and y axes of the machine and deposits alternating layers of the build material and the binding material. Material Extrusion; Fuse deposition modelling is a common material extrusion process. Material is drawn through a nozzle, where it is heated and is then deposited layer by layer. The nozzle can move horizontally and a platform moves up and down vertically after each new layer is deposited. Inkjet Printing is a noncontact technique that uses thermal, electromagnetic, or piezoelectric technology to deposit tiny droplets of ink (actual ink or other materials) onto a substrate according to digital instructions. Sheet Lamination processes that include ultrasonic additive manufacturing and laminated object manufacturing. Directed Energy Deposition which covers a range of terminology: Laser engineered net shaping, directed light fabrication, direct metal de position, 3D laser cladding It is a more complex printing process commonly used to repair or add additional material to existing components. 3. Description of the way Thermal Inkjet Printing AM Machines work As mentioned above, TIJ printers use a technique that uses thermal, electromagnetic, or piezoelectric technology to deposit tiny droplets of ink (actual ink or other materials) onto a substrate according to digital instructions. In inkjet printing, droplet deposition is usually done by using heat or mechanical compression to eject the ink drops. In TIJ printers, heating the print head creates small air bubbles that collapse, creating pressure pulses that eject ink drops from nozzles in volumes as small as 10 to 150 picolitres. Droplet size can be varied by adjusting the applied temperature gradient, pulse frequency, and ink viscosity. TIJ printers are particularly promising for use in tissue engineering and regenerative medicine. Because of their digital precision, control, versatility, and benign effect on mammalian cells, this technology is already being applied to print simple 2D and 3D tissues and organs (also known as bioprinting). (Cui X, Boland T, DLima DD, Lotz MK -2012) 4. The benefits of AM Machines in Medical Industry The strengths of Additive Manufacturing lie in those areas where conventional manufacturing reaches its limitations. The technology is of interest where a new approach to design and manufacturing is required so as to come up with solutions to complex and complicated situations. It enables a design-driven manufacturing process where design determines production and not the other way around. What is more, AM allows for highly complex structures which can still be extremely light and stable, which is a particularly important characteristic for medical bio-engineering. It provides a high degree of design freedom, the optimization and integration of functional features, the manufacture of small batch sizes at reasonable unit costs and a high degree of product customization even in serial production, thus providing the possibility of adapting every AM designed apparatus to every patient needs. (S.V Murphy, A. Atala -2014) For example, 3D printing has been considered as a method of implant ing stem cells capable of generating new tissues and organs in living humans. With their ability to transform into any other kind of cell in the human body, stem cells offer huge potential in 3D bio-printing. (3D Masterminds 7 Ways 3D Printing Is Disrupting the Medical Industry-2015) Many medical devices, such as hearing aids, dental crowns, and surgical implants are relatively small in size and therefore suitable for the production available through common AM systems. According to a new research report from Albany, NY based Transparency Market Research, the global market for 3D printing in medical application was valued $354.5 million in 2012 and is expected to grow at a compound annual growth rate (CAGR) of 15.4 percent from 2013 to 2019 to reach $965.5 million by 2019. (Wohlers Associates 2014) 5. Conclusion 3D printing has become a useful and potentially transformative tool in a number of different fields, including medicine. As printer performance, resolution, and available materials have increased, so have the applications. Researchers continue to improve existing medical applications that use 3D printing technology and to explore new ones. The medical advances that have been made using 3D printing are already significant and exciting, but some of the more revolutionary applications, such as organ printing, will need time to evolve, but still, taking into account the way technology evolves today, this kind of application may soon be accessible. 6. References -Jane Bird (2012-08-08). Exploring the 3D printing opportunity. The Financial Times.Ãâà Ãâà https://www.ft.com/content/6dc11070-d763-11e1-a378-00144feabdc0#axzz24gFn5Cal/ Gross BC, Erkal JL, Lockwood SY, et al. Evaluation of 3D printing and its potential impact on biotechnology and the chemical sciences. Anal Chem. 2014;86(7):3240-3253 https://all3dp.com/types-of-3d-printer-technology-explained/ -Ishengoma, Fredrick R.; Mtaho, Adam B. (2014-10-18). 3D Printing: Developing Countries Perspectives. International Journal of Computer Applications. 104 (11): 30-34. arXiv:1410.5349Freely accessible. doi:10.5120/18249-9329. ISSN 0975-8887. -Cui X, Boland T, DLima DD, Lotz MK Recent Pat Drug Deliv Formul. 2012 Aug; 6(2):149-55. -3D bioprinting of tissues and organs Sean V Murphy Anthony Atala Ãâà © 2014 Nature America -3D Masterminds 7 Ways 3D Printing Is Disrupting the Medical Industry-2015: http://3dmasterminds.com/7-ways-3d-printing-is-disrupting-the-medical-industry/ Wohlers Associates Report 2014 https://wohlersassociates.com/2014report.htm
Tuesday, August 20, 2019
Lord Of The Flies Civilization Versus Savagery English Literature Essay
Lord Of The Flies Civilization Versus Savagery English Literature Essay The theme for Lord of the Flies can be different things to different people. Some of the themes could be good vs. evil, sensibility vs. impulsiveness, or civilization vs. savagery. In Lord of the Flies there are two sides conflicting with each other throughout the whole story, and these are civilization vs. savagery. In Lord of the Flies civilization represents good while savagery represents evil. Civilization is the good inside of man to choose to live by rules, under authority, act reasonable, and peaceful with others. Savagery represents the evil of choosing not to live peacefully with others and not live by rules, but instead living to gain power over others and acting violently. However, living by rules and authority does not always guarantee peace and acting violently does not make someone a savage. The boys in Lord of the Flies show the decision they have to make whether to live by rules or to live violently and gain power for themselves; this shows the boys change of behavior from being civilized and having good behavior to being wild and violent, as shown in the two main characters Ralph and Jack, and the loss of the boys innocence. When Ralph and Piggy arrive on the island they realize that there are other boys on the island other than themselves and decide to gather the boys all together by blowing through a conch that they find. . Once all the boys are gathered, Ralph tells them they need a chief to rule over them. Some thought that they still needed adult leadership and asked, Arent there any adults? (Golding 20). Once they realized there were no adults on the island with them, they were not exactly sure what to do. The boys decide to still stick by previous rules and behavior. They decide they want a leader when they say, Vote for a chief! (Golding 22). This shows the boys believed in some kind of leadership whether an adult or an older kid. Once they voted Ralph as chief they also agreed to use the conch that Ralph used to call them together. The conch plays a very important role throughout the story. The conch helps gather meetings and also allows the person holding it to speak. This is an example of order among the boys. The conch governs the group of boys more than Ralph does. As the boys good behavior starts to disappear, so does the power of the conch and order. The disappearance of this is shown throughout the entire story until at the very end of the story all the boys, even Ralph, became what Golding wanted to show: Golding sees moral behavior, in many cases, as something that civilization forces upon the individual rather than a natural expression of human individuality. When left to their own devices, Golding implies, people naturally revert to cruelty, savagery, and barbarism (SparkNotes Editors). This shows the decision the boys in Lord of the Flies had to make either to live by rules or to live wild and violently. In the end they chose to live wild and violently. The two main characters of Lord of the Flies are Ralph and Jack. Ralph is the protagonist and the representative of civilization (Golding 206). Jack is the antagonist and symbolizes savagery and violence. The conflict between Ralph and Jack begins at the very first meeting when the boys vote for a chief and Ralph is chosen over Jack. I ought to be chief, said Jack with a simple arrogance, because Im a chapter chorister and head boy. I can sing in C sharp (Golding 22). This shows the beginning of Jacks jealousy towards Ralph because he was used to being the leader. It also shows the jealousy of man and how it makes someone want their own power. Ralph is a very big influence on the younger boys. He believes in taking care of the boys and finding ways for everyone to be rescued. Some ways he did this is by building the fire and huts. For this reason, Ralphs power and influence over the other boys are secure at the beginning of the novel (SparkNotes Editors). To the boys, Ralph, Piggy, and Simon are a sign of security. However, gradually, throughout the story the security of Ralph is not enough for the boys when their violent side takes over. Throughout the whole story Ralph symbolizes order until he is the only who doesnt join Jacks group. Jack is the opposite of Ralph. Jack desires to have power over all the boys but it is taken away when Ralph is voted chief. The violent side of Jack begins when he starts hunting pigs and uses the idea of the beast. The idea of a beast causes the boys to feel fear. The more of a savage Jack becomes, the more he influences the boys to become savages. Some symbols that represent Jack are the Lord of the Flies that becomes both a physical manifestation of the beast, a symbol of the power of evil, and a kind of Satan figure who evokes the beast within each human being (SparkNotes Editors). This shows the evil that hid in Jack but is also in mankind. The beast is the primal instinct of savagery that exists within all human beings (SparkNotes Editors), the one thing that frightens all the boys and is the main reason that Jack gains power over the boys. In The Scarlet Ibis there is a resemblance between brother and Jack because they manipulate people to listen to them and do what they want them to do. The conflict between Ralph and Jack is the choice of gaining ones own power or caring for the needs of others. When they come to the island the boys have no thought of acting violent or wild. They dont know really what to do without adult supervision so they create their own rules. Here it is hinted that the rules the boys have agreed to will not be followed or enforced for very long because of the situation the boys are in which is complete freedom from everything theyve known. In Liberty the family wants freedom from the danger that they are in. However there is good freedom and bad freedom. The boys are in a place where freedom is all around them and there are no adults to tell them what is right or wrong. This kind of freedom is very dangerous because the longer they stay on the island without any rules, the more they forget what good behavior is and eventually become wild and violent. Through the influence of the beast and Jack all the boys slowly become enthralled by the ways of savagery. The influence of Jack causes the boys to find pleasure in killing, torturing and spilling the blood of animals. The boys become so enthralled that they chant, Kill the beast! Cut his throat! Spill his blood! (Golding 152) They become so violent and wild that they even beat and kill some boys, pretending they are the pig. It was dark. There was that that bloody dance. There was lightning and thunder and rain. We was scared! (Golding 156) shows the boys dont think of what they did as wrong but as a game. Their savagery represents the evil that dwelt inside them of wanting to hurt someone or something. The group of boys in the beginning of the book is far from being the same group of boys at the end of the story. Ralph at the end of the story cries because he realizes that evil dwells not only in adults but also in children. Throughout Lord of the Flies civilization represents good, while savagery represents evil. However, the books theme also shows the evil that man has inside if given the opportunity to show it. The boys in Lord of the Flies had to decide if they wanted to live by rules or live violently. They had rules that they followed but there was no one to enforce it on them. Civilization may have rules but that does not mean that people will always obey them. Lord of the Flies shows that a good amount of time away from civilization can have a drastic affect on a person and they might not remember how to act properly in society. The decline of the boys behavior throughout the story from being civilized and having good behavior to being wild and violent shows that evil dwells in every human. Man can chose to control that evil or fall under its control as shown in the fall of the boys in Lord of the Flies.
Monday, August 19, 2019
The History Of Computers :: essays research papers
THE HISTORY OF COMPUTERS In 500 B.C. the abacus was first used by the Babylonians as an aid to simple arithmetic. In 1623 Wihelm Schickard (1592 - 1635) invented a "Calculating Clock". This mechanical machine could add and subtract up to 6 digit numbers, and warned of an overflow by ringing a bell. J. H. Mueller comes up with the idea of the "difference engine", in 1786. This calculator could tabulate values of a polynomial. Muellers attempt to raise funds fails and the project was forgotten. Scheutz and his son Edward produced a 3rd order difference engine with a printer in 1843 and their government agreed to fund their next project. In 1886 Dorr D. Felt (1862 - 1930) invented the "comptometer". This was the first calculator where the operands are entered by just pressing keys. In 1889 in also invents the first printing desk calculator. Herman Hollerith (1860 - 1929) founded IBM ( as the Tabulating Machine Company ) in 1896. The company renames known as IBM in 1924. In 1906 Lee D. Forest in America developed the electronic tube (an electronic value). Before this it would have been impossible to make digital electronic computers. In 1919 W. H. Eccles and F. W. Jordan published the first flip-flop circuit design. George Stibitz constructed a 1-bit binary adder suing relays in 1937. This was one of the first binary computers. In the summer of 1941 Atanasoff and Berry completed a special purpose calculator for solving systems of simultaneous linear equations, later called "ABC" ( Atanasoff Berry Computer). In 1948 Mark I was completed at Manchester University. It was the first to use stored programs. In 1951 whirlwind was the first real-time computer was built for the US Air Defense System. In 1953 it was estimated that there were 100 computers in the world. Computers built between 1959 and 1964 are often regarded as the "second generation" computers, based on transistors and printed circuits - resulting in much smaller computers. 1964 the programming language PL/1 released by IBM. 1964 the launch of IBM 360. These first series of compatible computers. In 1970 Intel introduced the first RAM chip. In 1975 IBM 5100 was released. In 1976 the Apple Computer Inc. was founded, to market Apple I Computer. Designed to Stephen Wozinak and Stephan Jobs. In 1979 the first compact disk was released around 1981 IBM announced PC, the standard model was sold for $2,880.00. In 1994 according to Microsoft MS-DOS was running on some 100 million computers worldwide.
Parallelisms and Differences:Rastafarianism and Judaism Essay -- Rasta
Parallelisms and Differences:Rastafarianism and Judaism The two religions of Rastafarianism and Judaism embody many of the same characteristics, as well as their ancestry. Although the Rastafarians, at times, inaccurately explain the bible, their belief in the Old Testament is still prevalent. Many of the customs are almost identical, but the rationale behind the traditions and laws contrast greatly. In 1933, when Leonard P. Howell was arrested for using"seditious and blasphemous language,"to boost the sale of pictures of Haile Selassie, he stated that Selassie was,"King Ras Tafari of Abyssinia, son of king Solomon by the queen of Sheba."1 Howell knew that in later years factual information about Selassie's true origin would be declared. As an Ethiopian constitution of 1955 confirms, Haile Selassie in his position as Emperor,"descends without interruption from the dynasty of Menelik I, son of Ethiopia, the Queen of Sheba, and King Solomon of Jerusalem."2 This constitution, therefore, gives us direct evidence from Ethiopian sources of an existence of a section of the Ethiopian Population practicing the Jewish Religion. According to the bible, King Solomon, King of Israel and the Jews, was paid by a visit from the Queen of Sheba, an Ethiopian Monarch. The Kebra Negast, the book of the glory of kings, states that by a trick, King Solomon inveigled the queen into sharing his bed with the result of a new born son, Menelik, who in due course became king or negus of Ethiopia.3 The queen was very impressed during her visit to the Holy Land, and adopted the Jewish Religion. But her son Menelik, when he grew up, visited his father, and transferred the Ark of the Covenant from Jerusalem to Axum. It is at this point where a new r... ...USA, no publishing given) Sanhedrin 90b 31 King James, Holy Bible, Song of Solomon, (USA, no publishing given) Berakhot 28b 32 King James, Holy Bible, Song of Solomon, (USA, no publishing given) 33 King James, Holy Bible, Song of Solomon, (USA, no publishing given) Genesis 3:18 34 King James, Holy Bible, Song of Solomon, (USA, no publishing given) Exodus 10:12 35 King James, Holy Bible, Song of Solomon, (USA, no publishing given) Proverbs 15:17 36 King James, Holy Bible, Song of Solomon, (USA, no publishing given) Psalm 104:14 37 Barret, Leonard E. The Rastafarians (Boston: Beacon Press 1997) p129 38 Kolatch, Alfred J., The Jewish Book of Why (Jonathan David Publisher 1981) 118 39 Barret, Leonard E. The Rastafarians (Boston: Beacon Press 1997) 40 Barrow, Steve and Dalton, Peter, Reggae: The Rough Guide (London: Rough Guides LTD1997)191
Sunday, August 18, 2019
The Argument on the Legalization of Same Sex Marriages Essay -- Papers
The Argument on the Legalization of Same Sex Marriages The argument over the legalization of same sex marriages is rapidly becoming one of the most vigorously advocated reform subjects in recent law review. Being gay and loving someone is not illegal, but uniting that couple in a legal marriage is rejected by most of society in this country. Each state has had to deal with legal issues concerning same sex marriages to some extent. Most supporters of the ban on gay marriages believe that it would be a strong cause of immorality and corruption of the American family. People who do not support same sex marriages believe that it would create an unhealthy family, and could cause serious harm to children in that family, while supporters of same sex marriages believe that they are being denied the benefits such as establishing a right of survivorship, co-partner medical and retirement benefits. It is felt by most homosexuals that these benefits would help create a stronger stability in a long-term relationship. Most of the volunteer and financial support against gay marriage comes from religious groups or churches. ?Catholics, Mormons, and evangelists make up more than 40 percent of California?s population, and raised millions of dollars to pass the amendment.? Same sex marriages are both mentally and physically wrong in the minds of most parishioners. They find the concept immoral because according to the Bible, sex between members of the same sex is strictly prohibited, much less marriage. Proposition 22 was one of many campaigns led by religious conservatives, which prohibits California from allowing marital rights to gay couples who married in another state, and it only recognizes marriages between man and a woman. ... ...iages will also someday in the future be legalized. Bibliography: California Protection of Marriage Initiative. Feb.2000 Online Posting. 11 Nov. 2000 (http://doma.org/purpose.html) Defense of Marriage Act. May 1996 Online Posting. 28 Nov. 2000 (http://reagan.com/HotTopics.main/HotMike/document-5.15.1996.1.html) Lesbian and Gay Marriage Resource Site. April 2000 Online Posting 10 Oct. 2000 (http://grasshopperdesign.com/gay_marriage/news/vt4.htm) DodgeGlobe: The Dodge City Daily Globe-Court grants April. 2000 Online Posting. 8 Oct. 2000 (http://www.dodgegloble.com/stories.122199/nat_rights.shtml) California Bars Gay Marriage Mar. 2000 Online Posting 11 Nov. 2000 (http://abcnews.go.com/onair/CloserLook/wnt_000307_Prop22_feature.html) Stiers, Gretchen A. From This Day Forward St. Martins Press, New York, NY, 1998
Saturday, August 17, 2019
The Effect of Different Colored Light on Plant Growth
In the future, I would put different types of plants underneath the same color of cellophane to see if the light had the same effect that it did on the pole mean plants. I would also weigh the plants to find out their overall mass. I would also find out how much sugar is being produced by photosynthesis Cellophane is a thin, transparent sheet made of regenerated cellulose. Its low permeability to air, oils, greases and bacteria makes it useful for food packaging. It's clear, it's handy, and it's wrapped around my candy.The cellophane wrap is one of the most versatile discoveries of the sass. Intended to be a protective textile, the cellophane has since found application in many Industries as a packaging material and as a semi-permeable film. Many people mistake cellophane for plastic. The truth Is the two materials are of completely different composition. Plastic Is a synthetic or semi-synthetic polymer. In contrast, cellophane is a sheet of regenerated cellulose. The only thing that cellophane and plastic have in common is that both materials are usually made into transparent sheets.Uses for cellophane One of the earliest applications for cellophane wrap is for packaging and storage of food products. This specific function of the cellophane remains to this day, even though some Industries have turned to plastic for the same purpose. Nevertheless, the use of cellophane as a packaging material extends beyond food products. Almost all consumer products are able to utilize cellophane for packaging. I nerve are various toner applications Tort cellophane. Oneself tapes, sun as 3 Scotch tape, use cellophane as a base for their products. There are those who use printed cellophane for gift wrapping.Cellophane is also used as a semi-permeable barrier for battery cells. Beauty spas employ cellophane wrap for hair and cellulite treatments. In the realm of medicine, cellophane is also used as semi-permeable tubing for dialysis. With such an impressive track record, people will continue to utilize cellophane as an important material for industry. Article Source: http://Centralizes. Com/4264429 How is it made? Unlike the man-made polymers in plastics, which are largely derived from petroleum, cellophane is a natural polymer made from cellulose, a component of plants and trees.Cellophane is not made from rainforest's trees, but rather from trees farmed and harvested specifically for cellophane production. Cellophane is made by digesting wood and cotton pulps in a series of chemical baths that remove impurities ND break the long fiber chains in this raw material. Regenerated as a clear, shiny film, with plasticizing chemicals added for flexibility, cellophane is still comprised largely of crystalline cellulose molecules. This means that it can be broken down by micro-organisms in the soil Just as leaves and plants are. Is it earth-friendly?Cellulose belongs to a class of compounds known in organic chemistry as carbohydrates. The base unit of cellulose is the glucose molecule. Thousands of these glucose molecules are brought together in the plant growth cycle to form long Haines, termed cellulose. These chains are in turn broken down in the production process to form cellulose film used in either an uncoated or coated form in packaging. When buried, uncoated cellulose film is generally found to degrade within 10 to 30 days; PAID-coated film is found to degrade in 90 to 120 days and nitrocellulose- coated cellulose is found to degrade in 60 to 90 days.Tests have shown that the average total time for complete bio-degradation of cellulose film is from 28 to 60 days for uncoated products, and from 80 to 120 days for coated cellulose products. In lake eater, the rate of bio-degradation is 10 days for uncoated film and 30 days for coated cellulose film. Even materials which are thought of as highly degradable, like paper and green leaves, take longer to degrade than cellulose film products. Conversely, plastics, polyvinyl chloride, polyth ene, polyethylene transliterate, and oriented- polypropylene show almost no sign of degradation after long periods of burial.I Introduction Peachy (Brassier ARPA L. C.v. group Pack Choc') is an erect, biennial herb, cultivate as an annual auto 1 30 m tall In vegetative I Stage. Ovate leaves are ranged spirally and spreading. The petioles are enlarged and grow upright forming a subliminally bundle. I luminescence is a raceme with pale yellow flowers. Seeds are 1 mm in diameter and are reddish to blackish brown in color. I Uses and Nutritional Value I Peachy is used mainly for its immature, but fully expanded tender leaves. The succulent petioles are often the preferred part. It I list used as main ingredient for soup and stir-fried dishes.
Friday, August 16, 2019
Books and e-books Essay
In time of technical progress e-books are getting more popular day by day, but still most of the people prefer hard copy of books and do not support new fashion wave. Book has always been the best present for any kind of occasion, it is something that does not have an expiration date and it will always be in fashion. However, you cannot give e-book as present, of course you can send my e-mail, but you cannot put your sign and it sort of loosing meaning as a present, because you cannot touch it. On the other hand prices for e-books are lower and you can get a variety of free e-books, so everyone can enjoy literature from all of the world, but you should have special gadget to read e-books, and it is additional expanses for reading. In contrast, printed books are sort of pricy, and you cannot buy as much books as you want, as a result you are not trying to read new authors whose creations had not become bestsellers. Spending money on books is good investing, because you can collect a library and after you can leave it for next generations, as I mentioned before book is the product that does not have an expiration date. Having your library in an electronic devise it is a risky business, by reason on viruses that attacking devises every day and deleting all information from them or you can just loose an e-reader with all your book collection. Also hard copy book does not need to be charged and you can read as much as you want and wherever you want, unlike e-book is charging from electricity.
Thursday, August 15, 2019
Describe the Fluid-Mosaic Model of a Plasma Membrane
Describe the fluid-mosaic model of a plasma membrane. Discuss the role of the membrane in the movement of materials through it by each of the following processes: a. Active transport b. Passive transport The plasma membrane is a semi permeable barrier that separates the inside of the cell from the outside environment. The plasma membrane is made up of carbohydrates, cholesterol, proteins, and a lipid bilayer, or double layer of lipids. The plasma membrane may be known as a fluid mosaic model where the membrane is a fluid structure with various proteins embedded in or attached to the bilayer of phospholipids.The plasma membrane possesses hydrophilic tails and hydrophobic tails, which may be referred to as amphiphilic. There are various ways that materials may pass through the membrane. Movement across the membrane may be classified into two different categories, passive transport and active transport. Passive transport does not require energy to occur. During passive transport the mol ecules will move from a place of high concentration to a place of low concentration.In other words, the molecules are moving down their concentration gradient. A concentration gradient is the increase or decrease in the density of a chemical substance in an area. The three types of passive transport are diffusion, osmosis, and facilitated diffusion. Diffusion is the tendency for molecules of any substance to spread out into the available space. The plasma membrane is semi permeable so diffusion across the plasma membrane may only occur with a few substances such as oxygen, carbon dioxide, and alcohol.Osmosis is the diffusion of water across a selectively permeable membrane. When osmosis occurs in the plasma membrane the molecules will move from hypotonic to hypertonic. Facilitated Diffusion is polar molecules and ions impeded by the lipid bilayer of the plasma membrane diffusing passively with the help of transport proteins that span the membrane. The transport protein, aquaporins, will allow for water to diffuse passively. There are other transport proteins, such as glucose umps, that aid with the movement of materials. Active transport is movement across the membrane that does require energy to occur. ATP will supply the energy for active transport. During active transport, molecules will move from places of low concentration to places of high concentration. Active transport requires energy because it must transport the molecules against their concentration gradient. There are four different subdivisions of active transport, primary, secondary, endocytosis, and exocytosis.Primary active will manifest in the form of certain transport proteins that require energy to function, such as the sodium-potassium pump. Secondary active transport is another subdivision of active transport. During secondary active transport molecules may move by symtransport, which is particles moving in the same direction, or antitransport, which is particles moving in the opposite dire ction. Primary and secondary active transport is utilized for small particles to be transported across the plasma membrane.Endocytosis is the cellular uptake of macromolecules and particulate substances by localized regions of the plasma membrane that surround the substance and pinch off to form an intracellular vesicle. Endocytosis is for materials that may be entering the cell. Endocytosis may be completed by phagocytosis, pinocytosis, and receptor-mediated endocytosis. Phagocytosis is a cell engulfing a particle by wrapping pseudopodia around it and packaging it within a membrane-enclosed sac to be digested. Pinocytosis is a cell ââ¬Å"gulpingâ⬠droplets of extracellular fluid into tiny vesicles.Receptor-mediated endocytosis is the movement of specific molecules into a cell by the inward budding of membranous vesicles containing proteins with receptor sites specific to the molecules being taken in. Receptor-mediated endocytosis is accomplished with the help of hormones. Exo cytosis is the cellular secretion of macromolecules by the fusion of vesicles with the plasma membrane. Exocytosis is for materials that may be exiting the cell. Exocytosis may also be referred to as secretion or excretion. Secretion is the expulsion of digestive enzymes while excretion is the expulsion of waste.
Wednesday, August 14, 2019
History of Special Education Law Essay
Education is beyond doubt an important aspect of life. Through education, an individual develops his talent and acquires knowledge that is necessary in understanding all aspects of life. Apart from that, education is the very stage at which one develops his discernment as to what is good and what is not. More importantly, values are strongly built up through education and through the educational institutions. Since education has a wide-reaching worth, it has significantly become a way of life. It is noteworthy that right to education has undergone a battle, especially in the aspect of special education. The disabled children were usually not afforded with their right to have adequate education. Eventually, the legislations such as Education for All Handicapped Children Act (EHA) and the Individuals with Disabilities Education Act (IDEA) were enacted. The Venn diagram illustrates the similarities and the differences of the laws in many aspects. Although the laws are meant only to address similar problem on education of children with disabilities, many changes have been introduced in the amendment. Notably, the Education for All Handicapped Children Act (EHA) was enacted in 1975 and was amended as the Individuals with Disabilities Education Act (IDEA) in 1990 (Wilson, 1996). Similarly, both the Education for All Handicapped Children Act (EHA) and the Individuals with Disabilities Education Act (IDEA) were enacted to address the problem in education. Notably, before these laws were enacted, the educational system in the country was concentrated only on regular students and on regular educational system. Many students having disabilities were not given much attention in the educational institutions because of the lack if programs and facilities that will address the disabled studentsââ¬â¢ needs. After the development in the political and social aspect of the society in the 50ââ¬â¢s and 60ââ¬â¢s, educational acts addressing the needs of the disabled students were enacted. Both acts were primarily focused on providing education to special students. It was referred to as special, because the students have special disabilities that hinder them from grasping the knowledge or the lessons being taught to them. Through the laws, special students were provided with equal opportunity to education. However, before a student is afforded the education under the programs, the students are evaluated by a team. Remarkably, the disabilities involved must involve deafness, deaf-blindedness, difficulty of hearing, mental retardation, multiple handicap, orthopedic impairment, other health impairment, serious emotional disturbance, specific learning disabilities, speech impairment, and visual impairment (EricDigests. Org, 2009). Furthermore, under both Acts, the parents are afforded with right to contest the decision of the evaluating team or schools as to the condition of their child. Through dispute resolutions, the parents have administrative remedy of questioning the decision of the schools as to the requirement and the acceptance or non-acceptance of their children. The aim of providing dispute resolution at in the administrative level is to alleviate the costs of litigation that are usually brought in the judicial branch. However, both laws have differences in many areas. Through the amendment of the Handicapped Children Act by the IDEA, many amendments were introduced. As to legibility of the child, the EHA allows children from 3-5 years-old while IDEA allows children from 3-9 years-old. The education provided by IDEA extends to a child until reaching the age of 21. With regard to evaluation group that identifies whether a child passes the qualifications, the EHA involves only one teacher and specialist having knowledge about the disability (Ericdigest.à Org, 2009). However, under the IDEA, the evaluation process continues with the forming of the Individualized Education Program (IEP) team that assesses the educational needs of the child (Knoblauch). The evaluation and assessment made by the IEP must be known by the parents of the child evaluated and the parents are also encouraged to participate in forming the program needed by their child. Apart from that, regular teachers are also required to participate in the IEP team (Knoblauch). Another area of differences is the range of the law. The inclusion of infants and toddlers is expressly provided in the IDEA but not in EHA. The IDEA provides for the intervention and pre-school services wherein schools participate in the transition planning conference for disabled toddlers entering pre-school (Knoblauch). The IDEA supports the idea that intervention is the payor of the last resort (Knoblauch). Under this idea, As to requirement of teachers, EHA does not explicitly provided for strict qualifications of teachers teaching children with disabilities. But, under the IDEA, a highly-qualified teacher is required. The criteria demands that a teacher has been fully trained and certified in special education or has passed the special education licensure exams and that the teacher must demonstrate knowledge in all subjects (Stewart and Stahlman, 1998). In addition, teachers and personnel under the IDEA are afforded with trainings needed in improving the system and in assuring that the students are afforded with quality education. It is also noteworthy that students are given more attention in IDEA than in EHA. During the existence of EHA, the students with disabilities were provided of limited educational resources. However, in IDEA, students are assessed every three months (Knoblauch). Remarkably, one of the unique features of IDEA is the evaluating the needs of the student in a Least Restrictive Environment (LRE) (Knoblauch). Through the LRE, the child is isolated in an environment that is fully focused only in his needs. In a case of a deaf, for example, the child is isolated from meaningful social and communication interaction (Stewart and Stahlman, 1998). The amendments introduced by the IDEA have greatly changed the education system. The participation of parents has been an important factor in IDEA. In EHA, the responsibility of training and evaluating the child was bestowed mainly upon the teacher and the special education institutions. But under IDEA, the parents are informed of the results of the evaluation of their child and are involved in the formation of programs that will be given to their child. In addition, parents also participate in the placement evaluation of the child (Knoblauch). Hence, parents contribute an important role in the placement decision that affects the education of their child. In summing up, the Education for All Handicapped Children Act (EHA) and the Individuals with Disabilities Education Act (IDEA) is both aimed in addressing the needs of the childrenââ¬â¢s with disabilities as to their learning capacities. Through the specified disabilities, the children usually find difficulty in grasping the knowledge being taught to them. Apart from that, they were deprived of their right to adequate education because of the inadequacy of the educational program that will fully address their problem. However, through the enactment of the said acts, special students are now given equal and free education that is responsive to their special needs. The said acts however, have significant differences. The IDEA, amending the EHA, has introduced significant changes that are wider in scope and guarantees.
Tuesday, August 13, 2019
Radiography Essay Example | Topics and Well Written Essays - 500 words
Radiography - Essay Example At the same time, missing a menstrual period could trigger an indication that a woman is pregnant. Meanwhile, conception can take place anywhere after the 10th day of pregnancy (Russell JR, et al. 1997), making x-ray and radiography procedure likely to coincide with early conception if taken before the next onset of menstruation, when a missed period could signify pregnancy. Radiation protection remain very important in pregnancy, knowing that when substantial doses of ~10 rem are taken on pregnant women, this can cause birth defects and malformations (Health Physics Society, 2014). The 10 days rule therefore comes in as an important methodology or technique that is used to guarantee the safety of early foetuses against any potential damages. Examinations pertaining to the pelvic and abdominal areas therefore have the 10 days rule applying to but in cases of ankle and hand examinations, the 10 days rule may be exempted given to the fact that there is relatively fewer risk in this are a. In a very modernised system, radiographers have taken to the use of interventional radiological examinations that come with therapeutic applications instead of mainstream operations (Queen Mary Hospital, 2007). The 28 days rule in radiography is another form of protective regulation used in radiography procedures to guarantee the safety of potentially pregnant women from undue exposure. This is a rule that can be said to have come to replace the 10 days rule in radiography as the 10 days rules seemed to have some levels of inconsistencies with the identification of pregnancies (Royal College of Radiologists, 2012). With the 28 days rule, the emphasis is on a menstrual period that is overdue. This means that there is no grace period allowed in this instance. But ahead of the application of the 28 days rule, the radiographer will ask the woman if she has any
Folding and Aggregation Essay Example | Topics and Well Written Essays - 1000 words
Folding and Aggregation - Essay Example The three dimensional structures of proteins aid in delineating protein functions at a molecular level and the structure of proteins are determined usually with X ray crystallography, NMR spectroscopy etc. Some structural features of proteins would be necessary to perform certain biochemical functions although multifunctional and structural proteins may have higher number of residues than the average of 300 residues. Large aggregates are formed as a result of folding from protein subunits and actin molecules also assemble into actin filaments. The protein structure has four distinct features including amino acid sequence of peptide chains as seen in a primary structure, secondary structures which are regular sub structures, such as strands of beta sheet, tertiary structure as seen in the three dimensional structure of a single protein molecule and quaternary structure which represents a complex of polypeptide chains and protein molecules (Copley, 1997; Berg, 2002). Proteins tend to transition between structures to perform the biological functions and this would be known as conformational changes. The primary structure of proteins with amino acid sequences would be held together by covalent peptide bonds and the extremities of the amino acid chains are known as carboxy terminus (C - terminus) and amino terminus ( N -terminus). The secondary structures are defined by their patterns of hydrogen bonds between the peptide groups although these bonds are generally not too stable except in conditions when the water concentration is low as in molten globule or fully folded states (Urbanc et al, 2006). The non specific interactions and propensities of amino acids would lead to the formation of molten globules. The tertiary structure shows structurally specific interactions within the protein domain with side chains and hydrogen bonds. The disulfide bonds tend to stabilize the tertiary structures of extra cellular proteins and reduce entropy in an unfolded state. The 4 levels of protein structure are given diagrammatically as follows - Figure I - From Columbia.edu, biology courses, 2005 handouts The formation of proteins could be explained as the combination of two amino acids in a condensation reaction and long chains of residues such as amino acids in peptide bond. The sequence of amino acids forms the primary structure of the peptide or protein and is determined by a gene. Within the primary structure, a sequence of nucleotides in DNA is transcribed into mRNA and this is translated by a ribosome and the sequence tends to define the structure and functions of the protein and would be unique to any specific protein. Determining the sequence of nucleotides within the primary structure would actually help in defining the protein (Berg, 2002; Copley, 1997). In the secondary structure, alpha helix and beta sheet saturate the peptide and secondary structures tend to occur most frequently in most proteins. The secondary structure elements tend to have a regular geometry with specific values and are usually folded into a shape with loops and turns (Berg, 2002, Copley, 1997). Terti ary structures are formed with interactions such as hydrogen bonding and ionic interactions and
Monday, August 12, 2019
Nuclear Medicine Research Paper Example | Topics and Well Written Essays - 750 words - 1
Nuclear Medicine - Research Paper Example r radionuclide, which is in a bond with a supplementary molecules (such as, peptide, protein, or drug) or particles, that cumulates in the required tissue or organ after introducing it in the patientââ¬â¢s body through inhalation, swallowing, or injection (National Research Council, 2007). Depending on the characteristics, different radiopharmaceuticals are used for different diagnosis and treatment processes. Radiopharmaceuticals generally discharge beta or alpha radiation. As beta and alpha radiations are more effective than the gamma radiation that is used in diagnosis process, they are widely exploited in the most nuclear medicine procedures (National Research Council, 2007). The preparation of patients for nuclear medicine processes varies according to the type of examination or test. However, there are certain standard guidelines which are required to follow while preparing the patient to ensure the accuracy of tests. There is no need of special preparations for the scans associated with the inflammatory, bones, pulmonary, brain, lymphatic and renal systems (Patient Care, 2014). However, specific drug allergies are required to be noted by means of Diamox for brain scanning. For the scans associated with the gastrointestinal system, patients are required to fast for at least 4-5 hours (Patient Care, 2014). Some such scanning tests need pre-medicating as a part of a preparation. Further, cardiac tests consist of fasting of at least 4-5 hours prior to the test and persantine stress test need no consumption of caffeine for at least 24-30 hours before the test (Patient Care, 2014). Thyroid scanning needs pause on the consumption of specific medications befo re the scanning. Also, patients are required to inform their physician about the own medical history and present medications before going through the nuclear medicine procedures (Patient Care, 2014). Nuclear medicine is a painless, affordable, and safe mode of collecting medical data that would be otherwise
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