Hiv A Modern Atlantian Epidemic - 1600 Words

HIV: A Modern Atlantian Epidemic HIV, or human immunodeficiency virus, is a global issue that is classified as a pandemic by the CDC and WHO, however an epidemic is on the rise at an alarming rate in Atlanta, Georgia. This cluster in downtown Atlanta is being contributed to several factors, including poverty, a greater percentage of African-American residents and behaviors that increase the risk of HIV, including unsafe gay sex and injection drug use. Approximately half of newly diagnosed HIV patients in Atlanta have unknowingly progressed to full-blown AIDS, according to testing conducted by Grady Hospital (Archer, 2015). An alarming amount of those patients, approximately 8%, reside within the same 30303 zip code as the hospital itself†¦show more content†¦Once the host cell of the body is superimposed by the virus, it then begins its replication process by â€Å"budding† newly replicated virus cells by converting the viral RNA into viral DNA using the virus’ own enzymes. This virus severely compromises the immune system responses, both humoral and cell-mediated, by targeting and attacking CD4+ T-helper lymphocyte cells and central nervous system cells. This virus also uses the lymphoid tissues and organs to multiply and contain itself to continue infections throughout the body. HIV is a disease with multiple stages of severity. Persons who acquire this disease may unknowingly be a carrier for years without realizing it. At early onset of acute HIV infection (Stage 1), a few weeks after exposure, viral replication is rapid and there may be mild, generalized flulike symptoms such as low fever, fatigue, arthralgia, and sore throat (VanMeter, 2014). Following this brief illness, if any, of stage I the person would then go into Stage 2 or clinical latency. This period can also be referred to as asymptomatic HIV infection due to the low levels of HIV reproductions. For some, this period can last many years to a full decade or beyond, but without treatment many will go through this phase quickly. Those that test

What is recruitment and selection Free Essays

What is recruitment and selection? [In other words, the process where an organization collect a number of people who met requirements and qualified for that organization] Selection is†¦.. During both processes RS, an organization has to justify why they are going to choose particular methods to recruit and select people in a capable pool, that is to say, what elements or what under considerations which they use to influence their decisions before recruiting and selecting people Attraction and Retention The definition of recruitment is the process of generating a pool of capable people to apply an organization for employment. We will write a custom essay sample on What is recruitment and selection? or any similar topic only for you Order Now therefore this means that there is a need to generate people’s interest to apply for the job. This means that people have choice to choose This is why an organization has to consider this strategic choice. To be precise, attraction means†¦. For the internal sources this is associated with retention which means When considering attraction and retention strategy, an organization might first of all apply the concept of Fitting the person to the environment, organization As this diagram illustrates In an organization Whereas HR plocies will be designed to achevive particular organizational targets and goals, those policies also provide an opportunity for individual needs to emerge and be satisfied. This view assumes that a fit between a person and the environment can be found so that commitment and performance are enhance (Kristof, 1996). This not only gives a high performance advantages but also lead to â€Å"retention† Criticism However, commentator have Doubted whether such mutuality could develop on the basis of equality because organizational need would always be superiority. In typical form of profit-organistaion, the issue of profits maybe considered outweight individual needs. Competencies Another important element when considering attraction and retention strategy in recruitment and selection is to set out, what is it referred as â€Å"competencies† which are developed within the organization. A set of behavior patterns that the incumbent needs to bring to a position in order to perform its tasks an functions with competence. (The ability, skills and knowledge obtained by candidates and relevantly required and matched with organizational goals and targets) For instance, In large financial services organisations in the UK set out its competencies for example self-control †¦. etc If we look at Lloyds TBS’s, one of large financial services, it provides its vision and projected image of its organisation that How to cite What is recruitment and selection?, Essay examples

Frito

Frito-Lay Tostistos Essay Frito-LaysTostitosIn 1932, Elmer Doolin, who was in the icecream business, bought a recipe for corn chips from a Mexican man who was eager to leave the states and return home. From him Doolin acquired 19 accounts and old manufacturing equipment in hopes to start an entirely new industry in America. The first manufacturing plant for Fritos Corn Chips started out in Doolins mothers kitchen. With a lot of hard work, Elmers sales increased and new equipment and packaging were soon needed. After WW II he would grant H.W. Lay and Company, a source of potato chips and snack foods, an exclusive franchise to manufacture and distribute Fritos Corn Chips. The two companies would work close together and in 1961 they would merge. Four years later, Pepsi-Cola Company would also combine with Frito-Lay, but with separate operating divisions, to form a new company called PepsiCo. Consumers in 1995 spent an estimated $13.2 billion on Frito-Lay snacks, up $1.8 billion in 1994. (PepsiCo. 1995 Annual Report). Currently, Frito-Lay is still expanding its sales and serves all of the US markets. In 1989 they reconstructed their business into 4 regional divisions to strengthen its channel distribution. Their growth has continued and as of 1991 they had 22 Sales and Marketing areas in order to bring the decision process closer together. Currently they are continuing to grow nationally and globally with distribution reaching nearly 400,000 in retail, vending, and food service accounts around the country (PepsiCo. 1995 Annual Report) They offer more than 100 product lines and several brand names such as Lays, Ruffles, Doritos, Rold Gold, and Tostitos. The overall market share for tortilla and corn chips in 1993 accounted for 25.8% of retail sales and 27.8% of pound volume of the salted snacks market. Frito-Lays market coverage involves intensive distribution by placing i ts products in convenience stores, mass merchandisers, supermarkets, grocery stores, and vending machines. Todays average for the companys distribution amongst grocery and supermarkets has risen to about 56% (PepsiCo.1996 Facts). Frito-Lays closest competition in size for snack foods is Nabisco, who dosent have a snack chip to compete with Tostitos corn chip. Golden Flake Enterprises is Fritos biggest competitor in size and markets served that has a tortilla chip, but they compete in an indirect way through limited product lines. Some companies that compete serving smaller markets are Philadelphias Utz, Herrs, and Bravo. They try to compete with Frito-Lay, but most of them have to add a degree of differentiation to gain a slight competitive advantage in a market that is to easy to copy. Companies selling in small local markets try to compete and differentiate through targeting their audiences more directly which is hard for Frito Lay to do. However smaller companies resources are li mited, so it is hard to compete directly with the big distributor in markets served. Frito has also used the strategy of forward integration, which means they have used their earnings to gain ownership or control over distributors and retailers which makes it hard for small companies to gain distribution channels. Fritos snack products are available in 40 countries and believes that the majority of its growth will come from establishing new markets. Frito-Lay owns most of their operations but some operations are joint ventures. The company works hard at keeping its market share and has brought in outside firms to look at their supply chain from manufacturing to distribution, to logistics and transportation planning. This past year the company won an award for its seasoning and packaging program. It works to get full truckloads by utilizing unique carrier management technology systems which are projected to save 20% in transportation costs, reduce inventory carrying costs, and enable deliveries twice a week to production facilities which is expected to decrease transportation time. They are also using what is called a back-haul program to fill empty miles in Frito-Lays private fleet, generating over $250,000 in incremental revenue for its traffic centers. They have also spent big money on an in tegrated system which provides visibility and productivity tools to optimize Frito-Lays distribution network (www.markvii.com/news/frito.htm). Democratic Outlaws EssayMarketing and Advertising

Mobile Social Media Marketing

Introduction Marketing professionals all over the world are constantly adjusting their business strategies to reach out to the ever-changing demands and needs of customers (Lamarre, Galarneau, and Boeck 2012, p. 1). With the modern day shift to adoption of media services in the concept of marketing, Khalifa and Shen (2008, p. 112) opine that mobility is rapidly becoming an ordinary way of life.Advertising We will write a custom report sample on Mobile Social Media Marketing specifically for you for only $16.05 $11/page Learn More Innovative business mind-sets that have effectively incorporated e-commerce in their marketing strategies view mobile social media marketing as the next best exhilarating business prospect that will enable businesses to relate to their customers successfully through new communication channels (Lamarre, Galarneau, and Boeck 2012, p. 1). Mobile social media marketing differentiates itself from other marketing mediums such as newsp apers, radio, and television. This arguably is due to its highly interactive nature supplied by web browser advantages and mobile device interfaces that make it possible to offer continuous access to prospective customers (Davis and Sajtos 2009, p. 16). These rare advantages effectively suffice as one of the most robust, dynamic, and personal mediums that continue to shape modern day marketing in all corners of the world (Jadhav, Kamble, and Patil 2012, p. 45). Mobile social media marking has the ability to integrate several forms of mobile device technology and practices such as the Internet, VoIP, mobile SMS, the Bluetooth, mobile e-mail, as well as concepts such as SMS marketing, mobile gaming, mobile advertising, and location based marketing (Lamarre, Galarneau, and Boeck 2012, p. 2). Why the shift towards mobile marketing As Lamarre, Galarneau, and Boeck (2012, p. 2) note, Mobile social media marketing taps abundantly into the massive reservoir of potentials that cut mobile ser vice provision across the globe. These provisions have become used commonplace with consumers of all ages and by customer personal mobile interfaces. In recent times, mobile social media marketing has been comprehensively discussed in modern day marketing ventures and has passed the test of management philosophy pigeonholed on its practices, principles, and strategies that underscores its consistent quality delivery.Advertising Looking for report on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Of much consideration has been the increased employees involvement, employee empowerment, top management commitment, benchmarking, team spirit, rewards and recognitions, quality leadership, consistent feedback mechanism and a healthy liaison between companies and consumers, as well as between businesses and their suppliers (Jadhav, Kamble, and Patil 2012, p. 45). Most of the research on mobile social media marketing has majored i n the manufacturing sector. Lately, however, they have spread over the service industry and public administration, each of which has proved to have travelled a robust trajectory towards the empowerment of e-commerce (Abbass and Akram 2010, p 30). The advancements in the service sector, therefore, have occasioned the increased attention to the modern implementation of the mobile social constructs as better ways for companies to develop and enhance the global marketing trends. For corporations, therefore, this new shift in the marketing trends holds an appealing assurance of being in constant and direct touch with their clienteles, thus helping them to nurture a repeated and robust rapport with the potentiality of brand. The move amplifies sales with an express competitive advantage (Lamarre, Galarneau, and Boeck 2012, p. 2). In addition, given that the younger customers could be problematic to reach by means of traditional networks of communication. Mobile social media marketing read ily offers an effective appeal, especially with the increased need to reach out to the younger consumer segment (Gao, Sultan, and Rohm 2010, p. 578). This is because this consumer segment continues to be the brain behind the modern day business success. As such, they have to be lured in keeping with the social trends in the market (Jadhav, Kamble, and Patil 2012, p. 45). Challenges of mobile social media marketing Although mobile social media marketing hypothetically implies a prodigious deal of business opportunities, harnessing such possibilities continues to prove somewhat challenging (Aldà ¡s-Manzano, Ruiz-Mafà ©, and Sanz-Blas 2009, p. 745). Numerous obstacles relating to consumer behaviour continue to characterise it in ways that are yet to be resolved.Advertising We will write a custom report sample on Mobile Social Media Marketing specifically for you for only $16.05 $11/page Learn More As Beck et al. (2008, p. 420) note, it is a forgone concl usion that a great number of consumers often have their mobile devices within reach, thereby establishing a robust network of communication between consumers and companies. Over time, the challenge that has characterised mobile social media marketing revolves around the hitches in linking these two entry points by developing a craving from the prospective consumers to generate access to their mobile devices, whereby such consumers not only gain privilege, but also confidence in the company (Aldà ¡s-Manzano, Ruiz-Mafà ©, and Sanz-Blas 2009, p. 745). The other challenge that is often encountered in the managing of the consumer’s interaction with the company’s communication facilities is whether this might be perceived as being explicitly intrusive on such mobile social media marketing platforms. These contests, according to Davis and Sajtos (2009, p. 15), are pointers that validate the fact that research into this particular zone is necessary, pertinent and well-timed. Trends in mobile social media marketing and change management It increasingly becomes very imperative for organisations to gain competitive advantage by nurturing a culture that guarantees businesses the ability to survive and manage change effectively (Jadhav, Kamble, and Patil 2012, p. 46). Mobile social media marketing trends, according to Cao and McHugh (2005, p. 475), warrant the drive to carry out commerce that seeks to explore the domains of developmental paradigms which are in pursuit of the ever-changing buyer behaviour, habits and consumerism in general. Trends in global trade offer valuable lenses through which organisational leaders with the necessary business zest could monitor their business growth, respond amicably to the demands and mitigate uncertainties within their business structures (Abbass and Akram 2010, p 30). These newfound marketing trends are particularly useful in the concept of organisational intelligence, knowledge management, organisational design, an d corporate strategy to reach out to the global consumers.Advertising Looking for report on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Given that the most widespread trends in the contemporary market are towards an all-pervasive and continuous change, as well as expanding the scope of interdependencies, close parallelism can be amicably drawn between the public and private sectors with the denominator being the propensity towards environmental change (Cao and McHugh 2005, p. 475). Within these considerations, private and public sector organisations seek to thwart the approaching turbulent environmental glitches that are characteristic of traditional marketing. These marketing glitches are contained by dramatic technological changes, as well as socio-economic and political developments that continue to shape global trade. In order to help shape, understand and manage change conduits and its processes more effectively, a comprehensive outlook of change management in global marketing often suffices as the best alternative in keeping with the ever changing market trends (Cao and McHugh 2005, p. 480). The essence of mob ile social media marketing Mobile social media marketing is a venture of management that is concerned primarily with supervising, designing and controlling processes within a production function. The essence of this is to transform business operations especially in light of producing goods while tendering services that seek to meet the demand of consumers’ needs anywhere at all times (Choi et al. 2008, p. 320). Mobile social media marketing as a concept of management, observe Bauer, Reichardt, Barnes, and Neumann (2005, p. 185), takes into consideration the responsibility of underscoring the efficacy of specific business functions that must be realised by way of using the limited resources as possible to meet customers’ satisfaction within a given timeline. This archetypical business venture is also concerned with the efficacy that involves the conversion of inputs such as raw materials, energy and labour into outputs such as goods and services (Bauer et al. 2005, p. 1 85). Succinctly, the essence of mobile social media marketing is its capacity to utilise capital and human resources such as technology and knowledge to convert raw materials and services into either tangible or intangible products in the forms of goods and services. The basis of mobile social media marketing is to design the systems that control an enterprise such as arranging the facilities, coming up with procedures that align the business with mobile device inventory acquisition and scheduling business tasks and outputs while providing a safe passage that guarantees the smooth sail of business towards customers. Standardisation lenses The modern day consumer views business organisations through the lenses of standardisation and businesses that explore the domains of mobile social media marketing as a way of reaching out to their customers, so it normally gets a head-start in the populous market niche (Bouhlel et al. 2009, p. 705). This is so due to the fact that such businessesà ¢â‚¬â„¢ products and services are usually available to the consumers at the click of a call button. Alternatively, prospective buyers could always browse, view and verify the specifications of a product or service offered by the company, thereby saving both time and money. To a spectacular advantage, the authors opine that prospective customers could make on-line requests and be served with various services and products instantaneously (How to make effective disclosures in digital advertising 2013, p. 1). Mobile social media marketing, just like any other business venture, as argued by Josler and Burner (2005, p. 5), falls under categorisation schemes that classifies it within the highly sought after business motifs. These consist of the conceptualisation of higher degree of communication, standardisation levels, production and service delivery functions, as well as entertainments (Kim, Kim, and Kil 2009, p. 142). Marketing within this business model, for example, offers tangible go ods that must reach out to consumers. As such, a distribution system is often upped to get them to their targeted destination. Service industries tend to deal directly with their customers, thus making distribution a less likely challenge at the behest. Here, the concern, however, is to make the services available to the consumers regardless of their global positioning and trends in time (Pisano and Shih 2009, p. 117). Broadly speaking, the focus is on what businesses can do in order to attain a high rate of production in a marketing function. According to recent research in this area, the high-involvement media services by businesses can, for example, create positive attitudes and spellbinding confidence on the part of consumers (Demchenko 2004, p. 24). Massey, Montoya-Weiss and O’Driscoll (2002, p. 275) and Soupata (2005, p. 25) concur that increased media marketing and its practices help generate the types of flexible behaviours that may lead to enhanced performance by bus inesses. Social media applications embrace a wide collection of elements including collaborating projects, content communities, social networking interfaces, and virtual worlds, which essentially continue to factor in within the standard repertoire of communication for many businesses (Kaplan 2012, p. 1). Currently, with the endowment of powerful mobile device to every consumer, several social media applications are gradually becoming mobile, as new entrants in the market persistently appear. Conclusion Mobile social media marketing is rapidly becoming the new face of modern world marketing trends allowing organisations in all parts of the world to effectively reach out to customers and meet their demands beforehand. For many businesses, it will continue to evolve as an integrating tool in communications and marketing strategies. The continued use of mobile social media marketing is expected to expand the scope of global buying and consumption trends for companies and consumers that embrace it. Although mobile social media marketing offers the ability to create new and impressive opportunities, it also comes with challenges including demands for a rapid shift in the thinking skills – especially about marketing mix and market measurement stratagems. Today, companies that are most effective in the frontiers of mobile social media marketing are not only experimenting with several business opportunities; they are equally empowered to create institutional metrics to quantify the impacts of their market energies. In the years to come, effective use of mobile social media tools for marketing will be guided by the very businesses that have the ability to enter into this promising relationship with consumers, employees, supplies, and other stakeholders. References Abbass, B., and Akram, I 2010, ‘Mobile marketing: Examining the impact of trust, privacy concern and consumers’ Attitudes on intention to purchase’, International Journal of Busines s and Management, vol. 5, no. 3, pp. 28-41. Aldà ¡s-Manzano, J., Ruiz-Mafà ©, C., and Sanz-Blas, S 2009, ‘Exploring individual personality factors as drivers of M-shopping acceptance,’ Industrial Management and Data Systems, vol. 109, no. 8, pp. 739-757. Bauer, H. H., Reichardt, T., Barnes, S. J., and Neumann, M. M 2005, ‘Driving consumer acceptance of Mobile marketing: A theoretical framework and empirical study,’ Journal of Electronic Commerce Research, vol. 6, no. 2, pp. 181-192. Beck, R., Beimborn, D., Weitzel, T., and Kà ¶nig, W 2008, ‘Network effects as drivers of individual technology adoption: Analyzing adoption and diffusion of mobile communication services,’ Information Systems Frontiers, vol. 10, no. 13, pp. 415-429. Bouhlel, O., Mzoughi, N., Hadiji, D., and Slimane, I. B 2009, ‘Brand Personality and Mobile Marketing: An empirical investigation,’ Proceedings of world academy of science, engineering and technology, vol . 41, no. 3, pp. 703-711. Cao, G., and McHugh, M 2005, ‘A systemic view of change management and its conceptual underpinnings’, Systemic Practice and Action Research, vol. 18, no. 5, pp. 475-490. Choi, J., Seol, H., Lee, S., Cho, H., and Park, Y 2008, ‘Customer satisfaction factors of mobile commerce in Korea,’ Internet Research, vol.18, no. 3, pp. 313-335. Davis, R., and Sajtos, L 2009, ‘Anytime, anywhere: Measuring the ubiquitous consumer’s impulse purchase behavior,’ International Journal of Mobile Marketing. vol. 4, no. 1, pp. 15-23. Demchenko, Y 2004, ‘Virtual organizations in computer grids and identity management’ Information Security Technical Report. vol. 9, no. 1, pp. 59-76. Gao, T., Sultan, F., and Rohm, A. J 2010, â€Å"Factors influencing Chinese youth consumers’ acceptance of mobile marketing,† Journal of Consumer Marketing, vol. 27, pp. 574-583. How to make effective disclosures in digital advert ising 2013. Web. Jadhav, N., Kamble, S., and Patil, M 2012, ‘Social Media Marketing: The next generation of business trends’, Journal of Computer Engineering, vo. 2278, no. 8727, pp. 45-49. Josler, C. and Burner, J 2005, ‘Project Management methodology in human resource management’. College and University Professional Association for Human Resources. vol. 56, no. 2, 1-7. Kaplan, M 2012, ‘If you love something, let it go mobile: Mobile marketing and mobile social media 4Ãâ€"4,’ Business Horizons, vol. 55, no. 2, pp. 129 – 139. Khalifa, M., and Shen, K. N 2008, ‘Drivers for Transactional B2C M-commerce Adoption: Extended Theory of Planned Behaviour,’ Journal of Computer Information Systems, vol. 48, no. 14, pp. 111-117. Kim, K., Kim, G. M., and Kil, E. S 2009, ‘Measuring the Compatibility Factors in Mobile Entertainment Service Adoption,’ Journal of Computer Information Systems, vol. 50, no. 9, pp. 141-148. Lamar re, A., Galarneau, S. and Boeck, H 2012, ‘Mobile marketing and consumer behaviors current research trend’. Int. J. Latest Trends Computing, vol. 3, no. 201. pp. 1-9. Massey, A, Montoya-Weiss, M, and O’Driscoll, T 2002, ‘Knowledge Management In Pursuit Of Performance: Insights From Nortel Networks’, MIS Quarterly, vol. 26, no. 3, pp. 269-289. Pisano, G.P. and Shih, W.C 2009, ‘Restoring American competitiveness’. Harvard Business Review. vol. 7, no. 8, pp. 114-125. Soupata, L 2005, ‘Engaging employees in company success: The ups approach to a winning team’, Human Resource Management, vol. 44, no. 1, pp. 95-98. This report on Mobile Social Media Marketing was written and submitted by user Maximilian Duke to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Battle of Antietam in the American Civil War

Battle of Antietam in the American Civil War The Battle of Antietam was fought September 17, 1862, during the American Civil War (1861-1865). In the wake of his stunning victory at the Second Battle of Manassas in late August 1862, General Robert E. Lee began moving north into Maryland with the goal of obtaining supplies and cutting the rail links to Washington. This move was endorsed by Confederate President Jefferson Davis who believed that a victory on Northern soil would increase the likelihood of recognition from Britain and France. Crossing the Potomac, Lee was slowly pursued by Major General George B. McClellan who had recently been reinstated to overall command of Union forces in the area. Armies Commanders Union Major General George B. McClellan87,000 men Confederate General Robert E. Lee45,000 men Battle of Antietam - Advancing to Contact Lees campaign was soon compromised when Union forces found a copy of Special Order 191 which laid out his movements and showed that his army was split into several smaller contingents. Written on September 9, a copy of the order was found at the Best Farm south of Frederick, MD by Corporal Barton W. Mitchell of the 27th Indiana Volunteers.   Addressed to Major General D.H. Hill, the document was wrapped around three cigars and caught Mitchells eye as it lay in the grass. Quickly passed up the Union chain of command and recognized as authentic, it soon arrived at McClellans headquarters.   Assessing the information, the Union commander commented, Here is a paper with which, if I cannot whip Bobby Lee, I will be willing to go home.   Despite the time-sensitive nature of the intelligence contained in Special Order 191, McClellan displayed his characteristic slowness and hesitated before acting on this critical information. While Confederate troops under Major General Thomas Stonewall Jackson were capturing Harpers Ferry, McClellan pressed west and engaged Lees men in the passes through the mountains. In the resulting Battle of South Mountain on September 14, McClellans men attacked the out-numbered Confederate defenders at Foxs, Turners, and Cramptons Gaps.   Though the gaps were taken, fighting lasted through the day and bought time for Lee to order his army to reconcentrate at Sharpsburg. McClellans Plan Bringing his men together behind Antietam Creek, Lee was in a precarious position with the Potomac at his back and only Botelers Ford to the southwest at Shepherdstown as an escape route. On September 15, when the lead Union divisions were sighted, Lee only had 18,000 men at Sharpsburg. By that evening, much of the Union army had arrived. Though an immediate attack on September 16 likely would have overwhelmed the scrambling Lee, the ever-cautious McClellan, who believed Confederate forces to number around 100,000, did not begin probing the Confederate lines until late that afternoon. This delay allowed Lee to bring his army together, though some units were still en route. Based on the intelligence gathered on the 16th, McClellan decided to open the battle the next day by attacking from the north as this would allow his men to cross the creek at the undefended upper bridge. The assault was to be mounted by two corps with an additional two waiting in reserve. This attack would be supported by a diversionary attack by Major General Ambrose Burnsides IX Corps against the lower bridge south of Sharpsburg. Should the assaults proved successful, McClellan intended to attack with his reserves over the middle bridge against the Confederate center. Union intentions became clear on the evening of September 16, when Major General Joseph Hookers I Corps skirmished with Lees men in the East Woods north of town. As a result, Lee, who had placed Jacksons men on his left and Major General James Longstreets on the right, shifted troops to meet the anticipated threat (Map). The Fighting Begins in the North Around 5:30 AM on September 17, Hooker attacked down the Hagerstown Turnpike with the goal of capturing the Dunker Church, a small building on a plateau to the south. Encountering Jacksons men, brutal fighting began in the Miller Cornfield and the East Woods. A bloody stalemate ensued as the outnumbered Confederates held and mounted effective counterattacks. Adding Brigadier General Abner Doubledays division into the fight, Hookers troops began to push the enemy back. With Jacksons line near collapse, reinforcements arrived around 7:00 AM as Lee stripped his lines elsewhere of men. Counterattacking, they drove Hooker back and the Union troops were forced to cede the Cornfield and West Woods. Badly bloodied, Hooker called for aid from Major General Joseph K. Mansfields XII Corps. Advancing in columns of companies, XII Corps was hammered by Confederate artillery during their approach and Mansfield was mortally wounded by a sniper. With Brigadier General Alpheus Williams in command, XII Corps renewed the assault. While one division was halted by enemy fire, Brigadier General George S. Greenes men were able to break through and reach the Dunker Church (Map). While Greenes men came under heavy fire from the West Woods, Hooker was wounded as he tried to rally men to exploit the success. With no support arriving, Greene was forced to pull back. In an effort to force the situation above Sharpsburg, Major General Edwin V. Sumner was directed to contribute two divisions from his II Corps to the fight. Advancing with Major General John Sedgwicks division, Sumner lost contact with Brigadier General William Frenchs division before leading a rash attack into the West Woods. Quickly taken under fire on three sides, Sedgwicks men were forced to retreat (Map). Attacks in the Center By mid-day, fighting in the north quieted as Union forces held the East Woods and the Confederates the West Woods. Having lost Sumner, French spotted elements of Major General D.H. Hills division to the south. Though only numbering 2,500 men and tired from fighting earlier in the day, they were in a strong position along a sunken road. Around 9:30 AM, French began a series of three brigade-sized attacks on Hill. These failed in succession as Hills troops held. Sensing danger, Lee committed his final reserve division, led by Major General Richard H. Anderson, to the fight. A fourth Union assault saw the famed Irish Brigade storm forward with its green flags flying and Father William Corby shouting words of conditional absolution.   The stalemate was finally broken when elements of Brigadier General John C. Caldwells brigade succeeded in turning the Confederate right. Taking a knoll that overlooked the road, Union soldiers were able to fire down the Confederate lines and force the defenders to retreat. A brief Union pursuit was halted by Confederate counterattacks. As the scene quieted around 1:00 PM, a great gap had been opened in Lees lines. McClellan, believing that Lee had over 100,000 men, repeatedly refused to commit the over 25,000 men he had in reserve to exploiting the breakthrough despite the fact that Major General William Franklins VI Corps was in position. As a result, the opportunity was lost (Map). Blundering in the South In the south, Burnside, angered by command rearrangements, did not begin moving until around 10:30 AM. As a result, many of the Confederate troops that had originally been facing him were withdrawn to block the other Union attacks. Tasked with crossing the Antietam to support Hookers actions, Burnside was in position to cut off Lees retreat route to Botelers Ford. Ignoring the fact that the creek was fordable at several points, he focused on taking Rohrbachs Bridge while dispatching additional troops downstream to Snavelys Ford (Map) Defended by 400 men and two artillery batteries atop a bluff on the western shore, the bridge became Burnsides fixation as repeated attempts to storm it failed. Finally taken around 1:00 PM, the bridge became a bottleneck which slowed Burnside advance for two hours. The repeated delays permitted Lee to shift troops south to meet the threat. They were supported by the arrival of Major General A.P. Hills division from Harpers Ferry. Attacking Burnside, they shattered his flank. Though possessing greater numbers, Burnside lost his nerve and fell back to the bridge. By 5:30 PM, the fighting had ended. Aftermath of the Battle of Antietam The Battle of Antietam was the bloodiest single day in American military history. Union losses numbered 2,108 killed, 9,540 wounded, and 753 captured/missing while the Confederates suffered 1,546 killed, 7,752 wounded, and 1,018 captured/missing. The next day Lee prepared for another Union attack, but McClellan, still believing he was out-numbered did nothing. Eager to escape, Lee crossed the Potomac back into Virginia. A strategic victory, Antietam allowed President Abraham Lincoln to issue the Emancipation Proclamation  which freed slaves in Confederate territory. Remaining idle at Antietam until late October, despite requests from the War Department to pursue Lee, McClellan was removed command on November 5 and replaced by Burnside two days later. Selected Sources CWSAC Battle Summaries: AntietamAntietam on the Web

How Carbon Fiber Tubes Are Made

How Carbon Fiber Tubes Are Made Carbon fiber tubes are ideal for both the hobbyist and industry professional. Using the rigidity of the carbon fibers, an extremely stiff yet lightweight tubular structure can be used in a wide range of applications. Carbon fiber tubes can replace steel, but more often than not, it is replacing aluminum. In many instances, a carbon fiber tube can weigh 1/3rd of an aluminum tube and still have the same or better strength characteristics. Because of this, carbon fiber reinforced tubes are often found in applications lightweight is crucial, like aerospace, race cars, and recreational sports. The most common carbon fiber tubular profile shapes are squares, rectangles, and circular. The rectangular and square profiles are commonly referred to as a box beam. Carbon fiber box beams provide excellent rigidity to a structure and simulate two parallel I-beams. Carbon Fiber Tube Applications Any application where weight is crucial, switching to carbon fiber will be beneficial. The following are some of the most common uses of carbon fiber tubes: Aerospace beams and sparsFormula 1 structural componentsArrow shaftsBicycle tubesKayak paddles Manufacturing Carbon Fiber Tubes Hollow composite structures can be difficult to manufacture. This is because pressure needs to be applied to both in internal and the external side of the laminate. More often than not, carbon fiber tubes with a continuous profile are manufactured by either pultrusion or filament winding. Pultruded tubes are by far the most cost-effective method of manufacturing continuous composite profiles. When pultruding a hollow tube, a floating mandrel is required. A chromed steel rod is firmly affixed in place on the side of the die where the raw material enters. The mounting hardware is far enough away that does not interfere with the impregnated fiber as it enters the die. The space between the mandrel and the die will determine the wall thickness of the carbon fiber tube. Pultruding carbon fiber tubes allow for the production of tubing of virtually any length. Transportation of the tube is generally the restriction on length. In pultrusion, most of the fiber will run the direction of the tube. This creates a tube with a tremendous about of stiffness, but not much hoop strength, or cross-directional strength. Filament Wound Carbon Fiber Tubes For increased strength and properties in all directions, filament winding is an effective method in manufacturing carbon fiber tubes. Filament wound tubes are cost effective and have excellent properties, however, the largest limitation is based on the length of the winding machine. Other Manufacturing Processes Pultrusion and filament winding, although the most common, is not the only way to manufacture carbon fiber tubes. Bladder molding, compression molding, vacuum infusion, and autoclave processing are all methods to manufacture carbon fiber tubes. Each has its own advantage and disadvantage as well.

How is Entropy and Information Gain Theory used in Coding Theory Research Paper

How is Entropy and Information Gain Theory used in Coding Theory - Research Paper Example In a communication arrangement, two sources of coding are evident, the first one is the source coding, which focuses on efficiency provision of digital presentation from source signal. Secondly, we have the channel coding mainly the error-control coding which is for the provision of reliable communications through noisy channels (Ashikhmin, Barg & Dimacs 47) In coding theory, entropy and information gain theory offers various roles. Firstly, it is concerned with data reduction, which happens mostly studying a given task and coming across extra material called side information. This will result to the need of data reduction. Therefore, appliance of entropy and information will be of pronounced meaning because it will lessen the extra information. This theory can also interpret the extra information to represent context or situation information (Roth 6). Secondly, entropy and information theory concerns the determination of indecision that is allied with the given information. For exam ple, if certain specific information is on conduction and this theory happens to known it before the transmission of that material, it will lead to the failure of that information going through transmission. Entropy focuses on maximization during the equiprobable of meanings thus determining vagueness (Roth 7). Thirdly, this theory promotes intelligence and application of secrecy to information. These concepts mostly apply to cryptography compounded with cryptanalysis (Roth 7). It focuses on the redundancy of plaintext by giving the least quantity of ciphertext ensuring exceptional decipherability. Here information theory makes us be certain that it is hard to keep any secret (Golomb, Peile & Scholtz 202). Fourthly, entropy and information gain theory deals with the gathering of unpolluted disciplines, which have already gone through investigation and transformed to engineering practice. It deals with very broad applications thus the vitality of coding theory. Fifthly, this theory i s important when it comes to â€Å"error-correcting codes† in computers with high-speed memories (Cover & Thomas 13). These codes are of vital use when it comes to enhancing the reliability of computer memories. Here the computers contain unusual features that are rarely in communication applications. These errors are due to encoding, decoding, and uncommon type of errors. When this occurs, the entropy and information gain theory are able to detect double error appearing at the same time, correcting the single errors (Cover & Thomas 13). Source coding theory is about well-organized demonstration of given data that are from a certain information source (Gray 34). For example when it is an image-coding, achieving source coding can be through manipulating terminations of that image. To attain â€Å"noiseless source coding†, the measures of given information and its complexity should be observed. Central to this, the entropy and information theory is of application when it comes to detection of total information. This theory also helps when it comes to arithmetic coding compounded with statistical modeling (Kannappan 174). Arithmetic coding avoids assigning certain bit of given patterns to the original source symbol. In entropy and information theory, a connotation with a code is given and it concludes the order of symbol. These code words have sub intervals showing the disparity