Surface Tension

Processed Data: Table 1: Data in measuring the height of the water Trial| Height of water (m)| 1| 0. 032| 2| 0. 032| 3| 0. 032| Average:| 0. 032| Table 2: Values for measuring the radius of capillary Temperature| 30 degrees Celsius| Density @ 30 degrees Celsius| 995. 67 kg m-3| Acceleration due to gravity| 9. 8 m s2| Height of water| 0. 032 m| Surface tension of [email  protected] 30 degrees Celsius| 7. 118 X 10-2 N m| Radius of capillary tube| 4. 5592825 X 10-4 m| Table 3: Values for the height of n-butanol solutions in capillary tube Temperature| Trial| 0. 1 M| 0. 2 M| 0. 4 M| 0. M| 0. 8 M| 30 degrees Celsius| 1| 0. 022| 0. 023| 0. 023| 0. 024| 0. 025| | 2| 0. 022| 0. 023| 0. 024| 0. 025| 0. 026| | 3| 0. 022| 0. 024| 0. 024| 0. 025| 0. 026| Average| 0. 022| 0. 0233| 0. 0237| 0. 0247| 0. 0257| Table 4: Values for surface tension Concentration| Density (kg m3)| Acc. due to gravity (m s-2)| Height (m)| Radius (m)| Surface tension (N m-1)| 0. 1 M| 910| 9. 8| 0. 022| 4. 5592825 X 10-4 | 0. 04472564947| 0. 2 M| 920| | 0. 0233| | 0. 04788906204| 0. 4 M| 930| | 0. 0237| | 0. 04917091975| 0. 6 M| 940| | 0. 0247| | 0. 05187013633| 0. 8 M| 950| | 0. 0257| | 0. 545442923| Table 5: Values for excess concentration, cross-sectional area, & molecular radius of n-butanol Temperature| 303 K| Excess concentration| 7. 9387 mol m-2| Cross-sectional area| 2. 09 X 1048 A| Molecular radius of n-butanol| 8. 156394192 X 1023 A| Figure 1: Plot of n-butanol concentration versus surface tension Figure 2: Plot of surface tension versus ln C Discussion: The objective of the experiment is to use the capillary rise method to determine the surface tension of the working solution – in this case, the increasing concentrations of n-butanol solution.In a solution, molecules experience intermolecular forces with each other. However, the molecules in the surface of the solution experience less intermolecular force because part of it is exposed to a different phase. Therefore, there is a ten dency for the â€Å"bulk† solution to pull the molecules from the surface towards them. This concept is applied in a rain droplet, where because of the pull by the bulk part of the solution, it shapes into a form of a sphere – a shape with the least surface area. The rise of the solution in the capillary tube is the result of cohesion and adhesion.Cohesion is the attraction of molecules within the same phase while adhesion refers to the attraction of molecules of different phases; say the n-butanol solution and the walls of the capillary tube. If the adhesion force is stronger than the cohesion force, the walls of the capillary tube will be wet, which in turn attracts molecules from the bulk of the solution upward until the pressure exerted from outside (environment) of the capillary tube is equal to the forces that lifts the solution upwards.This equilibrium point will be used to determine the height of the rise of the solution, which is a factor in determining the su rface tension of the solution. Different concentrations of n-butanol solution were prepared in volumetric flasks. Then the radius of the capillary tube was identified by performing the capillary rise method using deionized water. With the given surface tension of water at 30 degrees Celsius, the radius was calculated: r=2? pgh Surfactants are molecules that have a nonpolar tail and a polar end.It lowers the surface tension from two different phases because of its ability to â€Å"pull† the molecules toward the molecules in the surface area. N-butanol is a surfactant therefore, it is hypothesized that the surface tension will decrease as the concentration of this surfactant in the solution increases. However, in the experiment, the results stated otherwise, that the more concentrated the n-butanol in the solution is, the higher the surface tension it manifests, as shown in figure 1.The equation used to compute for the surface tension is: ? = pghr2 where p is the density, g is the acceleration due to gravity, h is the height of the solution and r is the radius of the capillary. Sources of error can come from the deviating temperatures of the balance room and the laboratory. The capillary rise method should have been performed immediately right after identifying the density of the solution since a little change in temperature could greatly affect the behavior of the solution.Moreover, the long duration of time in performing the capillary rise method could possibly turn the solution back again to two layered phases, instead of a homogenous mixture therefore, what is measured is the height of the crude deionized wated rather than the solution. Also, another source of error could be the prolonged â€Å"stagnant† state of the other solutions in the volumetric flask where the alcohols present in the solution could possibly be turned into vapor state inside the flasks.The behavior of the n-butanol is to converge to each other and replace the water molecul es at the surface. The concentration of this surfactant becomes bigger than the molecules in the bulk which gives the excess of concentration denoted by: ? = -sRT where s is the slope of the best-fit line by plotting the surface tension against ln C (concentration in mol m-3), R is the ideal gas constant, and the T is the temperature in Kelvin. The value of ? , is used to calculate the value of the cross-sectional molecule of n-butanol, as well as the molecular radius of the chemical.Conclusion: Although the result stated otherwise, the concept of surface tension and the relationship of the concentration of the surfactant were understood with further research of other related experiments. Despite this, the use of capillary rise method gave way to compute for the radius without directly measuring it, but instead by having a given surface tension and determining the other sufficient factors in the Laplace equation. Sample Calculations: radius of capillary= 2(0. 07118Nm)995. 67kgm39. 8 ms2(0. 0320m)=0. 00046m urface tension= 910kgm39. 8ms20. 022m(0. 00046m)2=0. 045Nm excess concentration= -0. 0028. 314JKmol(303K)= 0. 00000079Jmol cross-sectional area= 10. 00000079Jmol10101m216. 022X1023molecules=2. 09X10^48A molecular radius= 2. 09X10^48Avalue of pi=8. 16X10^23A Literature Cited: Chang, Raymond. Physical Chemistry for the Chemical and Biological Sciences. 3rd ed. Sausalito, CA: University Science Books, 2000. Print. Page 840. csustan. Surface Tension and Soap Bubbles . 03 February 1999. 25 June 2012. . Prpich, A. , et. al. Tension at the Surface: Which Phase Is More Important, Liquid or Vapor?. 2009 Value of density @ 30 degrees Celsius taken from: Value of ideal gas constant taken from: < Mohr, Peter J. ; Taylor, Barry N. ; Newell, David B. (2008). â€Å"CODATA Recommended Values of the Fundamental Physical Constants: 2006†. Rev. Mod. Phys. 80 (2): 633–730. >. Value of surface tension of water @ 30 taken from: < Lange, p. 1663>

Why College Is Necessary

Why A College Degree is Necessary Posted in General Information An education is something that no one will ever be able to take away from you. It is the best gift that you can give yourself. College usually requires a big financial investment upfront, but the reward is definitely worth it. Over the course of your lifetime, you are likely to pay far less for your college education then you would in earning potential by not having a college education. In simpler terms, a college degree usually equates to more MONEY. In fact, each level of college education that you receive will increase your overall earning potential. In other words, the more education you obtain, the greater your chances are at earning more money. For example, if you decide to pursue a one-year degree in a technical field such as a medical assistant – this will provide you with the opportunity to earn more than you would with just a high school diploma. Similarly, an associate’s degree (or 2 year degree) will give you an opportunity to earn even more money. The same is true for a bachelor’s degree and a master’s degree. Most students begin their careers after obtaining their bachelor’s degree. However, some students decide to remain in school for graduate studies in order to obtain a master’s degree. In some careers, a master’s degree further increases an individual’s earning potential. The Cost of Obtaining Advanced Degrees A lot of students either choose to pursue advanced degrees later on in their career or not at all because of how expensive they can be. For some students, it is important that they complete school so that they can find a job and support themselves and/or their families. However, with the advances in technology and increase in flexible schooling programs, obtaining advanced degrees is becoming more affordable and attainable. With the rise of online degree programs, night classes, and weekend classes, advanced degree seeking individuals are able to go back to school without sacrificing their current careers or family during the process. The â€Å"information age† has made it a lot easier for students to meet their educational and future goals. Education & Careers How will an education help you land that dream job? Well, your level of education will help you get your foot in the door. Most jobs have baseline requirements that typically require a degree in a certain field of study (i. e. accounting, education, psychology, etc. ). Current job trends demonstrate that employers are placing more value on degrees than work experience and if you want to remain competitive with your peers, then you must equip yourself with the proper education. Also, some jobs will offer bonuses or promotions to employees who decide to go back to school to seek an advanced degree, particularly if the advanced degree is related to their current position. Tuition Reimbursement A lot of companies have tuition reimbursement programs. What does this mean? This means that the company will either reimburse you for a portion of your tuition related fees or in some cases, all of your tuition fees. These types of programs prove that employers value education. There is really no wrong reason to get an education. Even if your bachelor’s degree or advanced degree doesn’t fit the specific job that you are applying to, it may still give you a leg up on the competition. A college degree is becoming more and more necessary in today’s competitive job market, so you should take every opportunity that is presented to you to earn a college degree. Taken from the website. http://www. thecollegehelper. com/why-a-college-degree-is-necessary

Basant A Lost Festival Of Lahore English Literature Essay

Basant A Lost Festival Of Lahore English Literature Essay Basant, an event that marks the coming of spring, an event that would bring together people from all walks of life, an event that would cover the sky with colors, an event that would spread happiness ubiquitously. It was celebrated with a lot of vigor, passion and enthusiasm in Punjab, but unfortunately this vibrant and full of cheerfulness festival is becoming more of an historic event due to some unwise acts on part of illiterate, ignorant and reckless citizens. The ignorance of few has snatched away the happiness of million others and deprived the country of a great cultural festival. Basant is a centuries old cultural tradition of Punjab. Hindus, Muslims and Sikhs, all alike, celebrated it with great joy and gusto. Yellow is the color of the day as it depicts the blossoming spring flowers and the yellow mustard fields of Punjab. Girls would wear yellow saris and dupattas whereas boys would include yellow turbans in their clothing. There are no barriers of religions or different socio-economic class; everyone would get together and praise the day. Girls would get on the swings and sing the customary Basant songs that reflected the liveliness and romance of life in Punjab. Kite-flying was one of the main activities on the day and there would be competitions among people to cut loose others’ kites. There cant be a better place to celebrate this day than the cultural and historic capital of Punjab, Lahore. It is also known as extremely festive and the most happening city of Pakistan. During the February of almost every year the sky above Lahore is filled with colorful kites during daytime and with white kites at night. Words like Booo Kata, Patang, Pecha, Pinna and Charkhi can be heard almost everywhere. Music and dance is everywhere and the air is filled with the aroma of intoxicating traditional food. Everyone is involved in this festival and all enjoy the spectacle of hundreds of multi-colored kites filling the sky above their beloved city of Lahore heralding the coming of a new spring. In the early days Basant was confined to the old-walled city, however over recent past it has spread to far corners of the city as well. People from different places celebrate this day in their unique style; some do it by flying kites while others get together and enjoy traditional food and bhangra music. While I was researching about Basant in Gwalmandi (area near old food street), I interviewed this young lad about the age of 15. I asked him what do you know about basant. He replied..† jab hum patangein uratay hein..† (the day when we fly kites). When I asked him about his preparations for that day, I was surprised to hear about his passion. He told me that he would start saving money from his pocket money 2-3 months before Basant. He would use those savings to buy kites and strings and collect them until the day of Basant. It is celebrated with great joy in Lahore, as Daily Times states:

Social Entrepreneurship Essay Example | Topics and Well Written Essays - 250 words - 8

Social Entrepreneurship - Essay Example The company does not engage purely on dole outs to global society’s disadvantaged groups. Instead, the company’ main aim is to sustainably alleviate the lives of world’s poor. One strategy is distributing the revenue-generating Kickstart moneymaker pumps. The pumps help the world’s poor farmers generate profitable farm businesses, alleviating their economic plight. The Kickstart organization helps the world’s poor find related jobs (Kickstart, 2014). Mr. James Collins insisted great companies employ social discipline, humble enough to implement timely social responsibility activities. Fannie Mae’s business included ensuring thousands of Americans achieve their dream homes (Collins 110). Collins insists that level 5 leadership focuses on humble achievement of organization’s goals (Collins 17). In times of difficulties, the company must favorably never lose hope 65. Incorporating discipline and technology to best achieve organizational goals is a realistic business greatness concept (Collins 120). Social entrepreneurship entails contributing to the society’s improvement. The Kickstart organization helps improve the world’s poor conditions. Collins affirms the company must maximize scarce resources and technology to achieve social responsibility-laden company objectives. Evidently, social entrepreneurship includes allocating time and resources to improving the community’s social

Feedback and changes Essay Example | Topics and Well Written Essays - 3000 words - 1

Feedback and changes - Essay Example The elderly population, today, did not have computers taught in school (Wood, 2010). The modern world requires everyone to possess basic computer skills. When computer access is necessary to acquire information, senior citizens find difficulty when lacking computer skills (Wood, 2010). Computer technology services may include obtaining government Social Security services Medicare, banking services, and accessing the performance of their children in school (Suntanto, 2012). The elderly population should learn computers because computers are necessary for the best utilizing services and adapting to modern society. A cursory examination of the issue introduced above reveals a number of compelling studies provide a meaningful overview of the computer literacy among the older generation as it stands and its most significant social factors. An examination undertaken in 2011 by McMurtrey carried out a survey of large random sampling of senior citizens in order to gauge their views towards interaction with information technology. McMurtrey (2011) reveal an important point: even if senior citizens do want to learn how to interface with information technology the restriction of access to training or education is an obstacle. Resistance is an issue, which must consider other studies have chosen to look at the issue (Gilly, 2012). The primary obstacle to acceptance seemed to be the usage; lack of support stemming from a lack of available training and education (Gilly, 2012). Many are now undertaking efforts to market information technology directly to seniors by focusing not so much on robust features but on the ease of use, or on bundled training materials (Smith, 2012). Technologies have the potential to play significant roles in the lives of senior citizens and the more comfortable and accepting they are of technologies the more likely they may be able to reap the associated benefits. Tech-savvy (2013) study pointed out 57 percent of all senior

Outback Steakhouse Essay Example | Topics and Well Written Essays - 1000 words

Outback Steakhouse - Essay Example This paper seeks to assess how employee selection methods at Outback Steakhouse help it to have a competitive advantage. It also seeks to establish the importance of fit to the organization. Moreover, it seeks to evaluate the organization’s employee selection process and whether or not its selection methods are valid. The employee selection methods at Outback Steakhouse have, no doubt, given it a competitive advantage. It has made good use of some of the most effective intangible human resource factors, and these together with a wide knowledge in organization have helped it to have advantages over its competitors. The intangible factors also make it hard for Outback’s competitors to imitate its operations. Outback aims at maintaining its competitive advantage, especially through the use of its already established intangible factors, which are mostly employee-centered. It uses a precise process of employee selection for both its hourly and management employees, and this process is one of the things that have helped it to hire and retain the best employees. During the hiring process, Outback always assesses the qualifications of all applicants before selecting the most appropriate for the vacancies in question. This selection process keeps in mind Outback’s objectives, and such, the successful candidates are always those who have proven beyond doubt that they are ready to work within its vision and values, and also adhere to its organizational culture. These employees must be competent enough to work in teams, and be responsible and accountable (Jackson and Randall, 2008). To efficiently perform in a competitive business world, every player needs to understand that structural flexibility is very crucial for success (Vesey, 1991). This is what Outback seems to have understood so well. Outback Steakhouse employs personality test when recruiting new employees. This is majorly aimed at identifying those candidates who â€Å"adaptable, highly soc ial and meticulous.† Thereafter, it keeps the records of all the successful candidates, which are later used to set the cutoff scores for hiring other employees in future. Only those who attain the set cutoff scores get hired, and as such Outback Steakhouse uses this opportunity to recruit only those applicants with characteristics almost similar to those of existing successful employees, a factor which has helped it maintain its competitive advantage. Moreover, its selection process has helped it to keep its employee turnover levels as low as possible. The low employee turnover is equally important as Outback Steakhouse maintains almost all the skills and talents it nurtures. The process is also very cost effective compared to other recruitment processes, since basing recruitment on the traits of established employees helps it to get simply the best employees (Jackson and Randall, 2008). Fit has proven to be very important for Outback Steakhouse. By matching the personal qual ities of all potential employees to Outback Steakhouse’s culture and values, fit provides it with the most effective employees. It helps it to get the most appropriate hourly and management staff, that is, it helps in hiring the right staff. This fit is also relatively important in meeting the organizations objectives, as it ensures that the best employees are retained as they develop their careers within the organization. This not only leads to better performance but it also increases the loyalty of the employees, who are likely to be more committed to achieving the organizational goals (Jackson and Randall, 2008). Most restaurants in the US are reportedly doing badly partly

Hospitality and Tourism Essay Example | Topics and Well Written Essays - 2000 words

Hospitality and Tourism - Essay Example is evident that the business world comes with many uncertainties and therefore, gaining knowledge and information is a way of creating a competitive advantage. In this way, an important feature in the modern hospitality and tourism industry is the understanding of new techniques and procedures through staff training. Training and orientation is the work of the Human Resource Management (HRM) as a way of enhancing employee performance, while putting their expertise to good use as well as specialization in their job. It is therefore, important to understand the significant of personnel training as well as orientation in hospitality and tourism industry in a bid to enhance performance (Barrows and Powers, 2008). The drastic changing world of business requires making use of human capital to enhance performance in order to achieve the organizational goals. The human resource manager in the hospitality industry should understand the various changes in globalization, technological advances, staff diversity, shortage of labour, and employee involvement among others (Gonzà ¡lez and Tacorante, 2004). Training and nurturing employees is a concept that cannot be undermined by the human resource because it adds knowledge and power to become successful. New employees in hospitality and tourism sector need training to understand their duties and the existing employees need more knowledge to comprehend the changes in this sector. It is evident that thorough training exposes an employee’s competencies and behaviours to perform better (Ahammad, 2013). The many changes in technology, complex business systems, and uncertainty in the business world, call for more knowledge and new skills. In essence, (Gazija, 2011) argues that the hospitality and tourism industry witness mass production and generation of different products or services and customers are especially selective when purchasing them. In this way, this new demands in the hospitality industry need new solutions and wide

Justifications for Migratory Restrictions Essay

Justifications for Migratory Restrictions - Essay Example This provision is therefore applicable to all members of the UK society because the society is one that has promoted equality and fairness for generations. However, in recent times, the UK has come up with stringent and tough immigration laws that have prevented a lot of people from coming into Britain. One of the biggest area that these new immigration laws have affected is the area of family law. Many migrants can assert a right to live with their family members if they gain legal residence here. However, the UK laws make it difficult for their family members to come into Britain. There are some pointers in law that give the government authorities the right to block these migrations for family unifications. However, this contrasts with UK family law and European Union Human Rights laws. This paper evaluates the conflict between human rights/family law and national immigration laws which prevent family unification. It begins by examining the fundamental rights of individuals in term s of family structures and European Union human rights laws. It goes on to examine the reality of migration into the UK and how these laws affect human rights. The paper identifies the grounds on which the UK authorities reject persons seeking family unifications and its implications in European Law. The paper goes on to identify the possible requirements that migrants and refugees living in the UK can satisfy in order to get their rights to family unification honoured. Core Components of Family Law From inception, the family has been the main place that individuals make their first social contacts. They build upon their relationships with their families to grow, study and enter mainstream society. The family was the pillar for the social and religious development of individuals in the olden days. After the reformation in Europe and the renaissance of the 15th to 18th Century, the family structures got modified. Since these events challenged traditional institutions with empiricism and economic rationality, the structures of the family changed (Stevenson, 2005). The family became a vehicle for the economic as well as social integration of children into the society. Currently, the family still remains a major component of the development of individuals. The family acts as the agency through which a child learns basic values of the society as well as the outlet through which the new generations get prepared for structured education for a future occupation. Families also preserve certain cultural and social relationships between adults through marriage and other bonds (Stevenson, 2005). In the UK today, families continue to maintain an important role in the society. Although a lot has changed over the past fifty years, the family remains an important component of Britain. In 2008, the UK government made the following pronouncement: â€Å"Families are the bedrock of our society. They nurture children, hep to build strength, resilience and moral values in young pe ople and provide love and encouragement that helps them lead fulfilling livesCabinet Office, 2008). Thus, the primary role that families continue to play in Britain is to socialise the next generation and give them the necessary guidance to build a fulfilling adult life. Additionally, family structures enable adults to get to the peak of their emotional, financial and social life because it grants support and help to individual members of the society (Diduck, 2003). It is therefore important for the UK to keep family structures intact. Due to this, family law has evolved as an important component of law in Britain. Most people have a view of an idealised family system where there is a father, mother and children. However, the evolution in the social structures of Britain has caused the law to also evolve to

Go Organic Company Essay Example | Topics and Well Written Essays - 250 words

Go Organic Company - Essay Example In its marketing strategy, the company should apply pricing, promotion, product and place as its marketing tools. These 4 Ps are necessary for helping the company to properly market its products. When it comes to pricing, Go Organic Company should set reasonably fair prices in comparison with its rivals. Through this, it will attract more clients to purchase its commodities. Besides, it should rigorously participate in sales promotion. Here, the company should heavily investing advertisements. In order to reach its target clients and inform them about the supply, uses and benefits of its organic products, it should advertise its commodities in the broadcast, print and online media. Moreover, when it comes to the product, the company should ensure that it manufactures high quality services. For it to enjoy a competitive advantage over its rivals, the company should produce unique and appealing commodities. This will enable it to win the confidence of its potential and existing clients. Lastly, the company should evenly distribute its commodities to ensure that they are made available to all its clients irrespective of their geographical locations. For guaranteed success, these Ps should be used by the

Wk 1 Case Study Essay Example for Free

Wk 1 Case Study Essay Economic development in the midsouth did not always have reliable access to transportation. This was devastative because much of their growth depended heavily on transportation. Midsouth Chamber of Commerce, MSCC, was formed by a group of legislators who wanted to push for more access to transportation. Midsouth Chamber of Commerce started off strong. They were an aggressive advocacy for their business community. Their growth over the years helped them turn their organization into a business, hitting the million dollar mark. It wasn’t long, however, before their growth took a turn. The company relied heavily on the sales and marketing functions. MSCC lost many contracts with corporations because they could not keep up with the wide spread use of the internet. That was when MSCC decided to hire Leon Lassiter to take control of their sales and marketing functions. Leon Lassiter joined the MSCC in the year 2000. According to the case study â€Å"Midsouth Chamber of Commerce (A): The Role of the Operating Manager in Information Systems† Lassiter’s first task when joining the team was to review all of the programs, processes, and procedures of the company (par. 9). Right away he noticed that the information system was so  limited no one had access to do anything but the limited amount required by their job function. â€Å"No staff member had access to all the data necessary to operate the marketing and sales activities† (par. 9). Processes were done in steps starting from the lowest job level and then working its way to the top. To get one data request it would take approximately three days. Lassiter began to work with Wilson who was in charge of the operations division at MSCC. Though they did not agree with each other’s proposed plans for how the financial division should run, they both agreed to control costs. As time passed, the information systems of the company Kissell 3 grew. This brought necessary organizational changes. Staff changes were made to fall in line with the informational upgrades throughout the company. When this happened, the concern for top management arose. Lassiter and Wilson agreed that they would invest in the new information system created by a former consultant named Kovecki. Management and staff took well to the new work station arrangements. The new system, UNITRAK, helped reduce the costs of software. Unfortunately, this did not last long. They system continued to need upgrading and was never able to be implemented into the business. Lassiter continued to see disappointment with the UNITRAK. The time spent training employees on the system cost thousands of dollars, just for the materials to be forgotten. This case outlines the importance of a business and its technology. A company should always be prepared for change. MSCC did not seem like they were readily able to adapt to the change in information systems. The current situation is that the company is losing money each day the new software is not implemented. Kovecki is currently looking for a new job, but was hired by MSCC to build the companies new information system. In the future if MSCC continued to wait on Kovecki’s information system, money would be wasted. He was given months to provide MSCC with a process that worked, but has only been breaking down and not staying up to date. With the rate that MSCC is losing clients and money, waiting on Kovecki would be a mistake. He is clearly looking for a new job which implies that he has no interest in helping MSCC. It would he highly recommended that Lassiter and Wilson review their contract with Kovecki. If Kovecki does not complete the requested upgrade of the information software, they Kissell 4  will need to terminate working with Kovecki and look to a new informational software. MSCC was not prepared for the wide use of the internet. They used old processed from the time they originated which caused them to lose money. Although it was costly to implement a new information software, Lassiter was looking toward the best interest of MSCC’s future. Kissell 5 Work Cited Martin, E. , Brown, C. , Dehayes, D. , Hoffer, J. , Perkins, W. (2002). Midsouth Chamber of Commerce (A): The Role of the Operating Manager in Information Systems. In Managing information technology (7th ed. , pp. 10-16). Upper Saddle River, N. J. : Prentice Hall.

Advantages and Disadvantages of Ethernet

Advantages and Disadvantages of Ethernet A 10Base2, or thin Ethernet, network uses thin 3/16-inch coaxial cable (with 50-ohm) impedance for the network backbone. Thin coaxial cable is much easier to prepare and install than thick Ethernet cable which means transfer rate of 10 Megabits per second that uses baseband signaling, with a contiguous cable segment length of 100 meters and a maximum of 2 segments. 10Base5: 10Base5 uses thick coaxial cable. This version is the original Ethernet. It can operate at up to 10 Mbps and support cable segments of up to 500 meters which uses baseband signaling, with 5 continuous segments not exceeding 100 meters per segment. It is also known as thick Ethernet or ThickNet. 10Base-T: 10BaseT is a baseband 802.3-based Ethernet network that uses unshielded twisted-pair (UTP) cable and a star topology. This version can operate at up to 10 Mbps which uses baseband signaling and twisted pair cabling. It is also known as twisted-pair Ethernet or UTP Ethernet. Features: 10BASE-T uses Manchester-encoding over two unshielded twisted-pair cables. The early implementations of 10BASE-T used Cat3 cabling. However, Cat5 or later cabling is typically used today. 10 Mbps Ethernet is considered to be classic Ethernet and uses a physical star topology. Ethernet 10BASE-T links could be up to 100 meters in length before requiring a hub or repeater. 10BASE-T uses two pairs of a four-pair cable and is terminated at each end with an 8-pin RJ-45 connector. The pair connected to pins 1 and 2 are used for transmitting and the pair connected to pins 3 and 6 are used for receiving. The figure shows the RJ45 pin out used with 10BASE-T Ethernet. 10BASE-T is generally not chosen for new LAN installations. However, there are still many 10BASE-T Ethernet networks in existence today. The replacement of hubs with switches in 10BASE-T networks has greatly increased the throughput available to these networks and has given Legacy Ethernet greater longevity. The 10BASE-T links connected to a switch can support either half-duplex or full-duplex operation. Advantages: Since each node on a 10 Base-T network has its own cable connecting it to a central hub, it is far less likely that any node can cause the entire network to fail. The hub also has a partitioning function built into it which allows it to detect a problem on any of its ports. If a problem is found, the node is disconnected from the rest of the network. This isolates the problem until the node can be troubleshot and repaired. Because of the partitioning function built in to the hubs and the star-wired topology, it is generally easy to troubleshoot a 10 Base-T network. In a worst-case scenario, one can be troubleshot by simply disconnecting nodes from the hub one at a time until the network recovers. Usually, the hub will give an indication as to which node is causing a problem, allowing the technician to troubleshoot that node as opposed to spending many hours finding where the problem is. Disadvantages: 10 Base-T only allows distances from the hub to the node of 100 meters. In some installations, this can be a major problem if nodes need to be located farther away. The nature of UTP cable makes it considerably more sensitive to electrical noise than coaxial cable. Generally, this rules 10 Base-T out as an option for installations on factory floor environments or other locations with a high ambient noise level. What are the different types of networking / internetworking devices? Explain the basic features of these devices. Following are the networking / internetworking devices with their basic features. Network Router: A network device, typically connected to a range of LAN and WAN interfaces, that forwards packets based on their destination IP address. Routers receives an incoming frame, discards the data-link header and trailer, makes a forwarding decision based on the destination IP address, adds a new data-link header and trailer based on the outgoing interface, and forwards the new frame out the outgoing interface. Network Repeater: A repeater is a physical layer device. It receives, amplifies (regenerates) and retransmits signals in both directions. As far as the software is concerned, a series of cable segments connected by repeaters is not different from a single cable (except by some delay introduced by repeaters). A system may contain multiple cable segments and multiple repeaters. But no two transceivers may be more than 2.5 km apart and no path between any two transceivers may be traverse more than four repeaters. Bridge: A bridge is a data link layer device which is used to connect multiple LANs. It examines the data link layer addresses to do routing. Since they are not supposed to examine the payload field of the frames they route, they can transport IPV4, IPV6, Apple Talk, ATM, OSI or any other kinds of packets. Gateway: A gateway can translate information between different network data formats or network architectures. Suppose a computer using the connection-oriented TCP/IP protocol needs to talk to a computer using the connection-oriented ATM transport protocol. The gateway can copy the packets from one connection to the other, reformatting them as need be. Switches: Switches are similar to bridges in that both route on frame addresses. In fact, many people use the terms interchangeably. The main difference is that a switch is most often used to connect individual computers. As a consequence, when a computer wants to send a frame to another the bridge gets the frame but just discards it. But the switch must actively forward the frame to other because there is no other way for the frame to get there. What is the range of addresses in the classes of internet addresses? Evaluate each class of logical addresses. There are five IP address classes, following table show each class and the range of addresses. Class Beginning Address Ending Address A 0.0.0.0 127.255.255.255 B 128.0.0.0 191.255.255.255 C 192.0.0.0 223.255.255.255 D 224.0.0.0 239.255.255.255 E 240.0.0.0 255.255.255.255 In Class A through Class E. each is used with a different type of network. The address classes reflect the size of the network, and whether the packet is unicast or multicast. In the unicast method of transmission, one copy of each packet is sent to each target destination. If there are eight workstations designated to receive a packet, such as a portion of a video clip, then it is transmitted eight times. In the multicast method, the recipients are placed in a group, such a group of all eight workstations. Only one packet is sent to the group, via a router or switch, which then packet to each group members. Class A is used for the largest networks composed of up to 16,777,216 nodes. Class A networks are identified by a value between 1 and 126 in the first position of the dotted decimal address. The network ID is the first 8 bits and the host ID is the last 24 bits. Class B is for medium-sized network composed of up to 65,536 nodes and it is identified by the first octet of bits ranging from decimal 128 to 191. The first two octets are the network ID, and the last two are the host ID. Class C addresses are used for network communication on small networks of 256 nodes or less. The first octet translates to a decimal value in the range of 192 to 223 and the network ID is contained in first 24 bits, while the host ID is contained in the last 8 bits. Class D addresses do not reflect the network size, only that the communication is a multicast. Unlike Classes A through C, the four octets are used to specify a group of nodes to receive the multicast, which consists of those nodes that are multicast subscription members. Class E is used for experimentation and address range from 240 to 239.255.255.255 in the first octet. Task 2 What is Bandwidth? Explain the other factors for network communications. Network bandwidth is the measure of the data carrying capacity of the network. When simultaneous communications are attempted across the network, the demand for network bandwidth can exceed its availability. The obvious fix for this situation is to increase the amount of available bandwidth. But, because of the previously stated constraints, this is not always possible. In most cases, when the volume of packets is greater than what can be transported across the network, devices queue the packets in memory until resources become available to transmit them. Queuing packets causes delay. If the number of packets to be queued continues to increase, the memory queues fill up and packets are dropped. The characteristics of the information being communicated also affect its management. For example, the delivery of a movie uses a relatively large amount of network resources when it is delivered continuously without interruption. Other types of service e-mail, for example are not nearly as demanding on the network. In one company, an administrator might decide to allocate the greatest share of the network resources to the movie, believing that this is the priority for his customers. This administrator may decide that the impact will be minimal if e-mail users have to wait a few additional seconds for their e-mail to arrive. In another company, the quality of a video stream is not as important as critical process control information that operates the manufacturing machinery. What is Physical address and what is the difference between Physical address and Logical address? Explain it in detail. The Physical address is specific on the local network and it represents the address of the end device on the physical media. In an Ethernet using LAN, this address is also called as Media Access Control address. On the local Ethernet network, when two end devices communicate, the frames that are exchanged between them contain the destination and source Media Access Control (MAC) addresses. It is in hexadecimal notation assigned by manufacturer. This address is much like postal address because it enables communication to be sent to specific destination. Physical address is 48-bit address burned into the ROM of the NIC card which is a Layer 1 device of the OSI model. This is divided into 24-bit vendor code and 24-bit serial address. This is unique for each system and cannot be changed. While the logical address is a 32- bit address assigned to each system in a network. This works in Layer3 of OSI Model which is generally called IP address. What is the difference between Layer 1, Layer 2 and Layer 3 devices? Describe it according to the Layers features. OSI model have 7 layers which perform many different functions. Every layer has its own unique features and function and a device which help the layers to work properly. Layer 1 is called Physical layer which consists of hardware, developed by engineers, in the form of electronic circuitry, media, and connectors. Therefore, it is appropriate that the standards governing this hardware are defined by the relevant electrical and communications engineering organizations. By comparison, the protocols and operations of the upper OSI layers are performed by software and are designed by software engineers and computer scientists. As we saw in a previous chapter, the services and protocols in the TCP/IP suite are defined by the Internet Engineering Task Force (IETF) in RFCs. Hardware components such as network adapters (NICs), interfaces and connectors, cable materials, and cable designs are all specified in standards associated with the Physical layer. Layer 2 is called Data Link layer and its services and specifications are defined by multiple standards based on a variety of technologies and media to which the protocols are applied. Some of these standards integrate both Layer 2 and Layer 1 services. A hub is an example of a layer 2 device. Switches are generally considered layer 2 devices, but many are capable of operating at layers 3, 4 or higher. Router is the Layer 3 device. The role of the router is to select paths for and direct packets toward their destination. This process is known as routing. During the routing through an internetwork, the packet may traverse many intermediary devices. Each route that a packet takes to reach the next device is called a hop. As the packet is forwarded, its contents (the Transport layer PDU), remain intact until the destination host is reached. Task 3 Explain 7 OSI layers briefly and define Router, Switch, and Bridge. Explain about encryption decryption. OSI Layers: The Open Systems Interconnection (OSI) model was initially designed by the International Organization for Standardization (ISO) that provides a framework on which to build a suite of open systems protocols. The objective was that this set of protocols would be used to develop an independent international network that would not be dependent on proprietary systems. Unfortunately, due to the rate at which it expanded, and the speed at which the TCP/IP based Internet was adopted, the OSI Protocol Suite development and acceptance lagged behind. Although few of the protocols, which are in widespread use today, are developed by using the OSI specifications, the major contribution has been made by the seven-layer OSI model in the development of other products and protocols for all types of new networks. The OSI model provides an extensive list of functions and services as a reference model that can occur at each layer. It also depicts the interaction of each layer with the directly above and below layers. No. Layer Name Description 7 Application Performs services for the applications used by the end users. 6 Presentation Perform data format information to the application. For example, the presentation layer tells the application layer whether there is encryption or whether it is s .jgp picture. 5 Session Manages sessions between users. For example, the session layer will synchronize multiple web sessions and voice and video data in web conferences. 4 Transport Defines data segments and numbers them at the source, transfers the data and reasonable the data at the destination. 3 Network Creates and addresses packets for end-to-end delivery through intermediary devices in other networks. 2 Data Link Creates and addresses frames for host-to-host delivery on the local LANs and between WAN devices. 1 Physical Transmits binary data over media between devices. Physical layer protocols define media specifications. Router: A network device, connected to a range of WAN and LAN interfaces that sends packets according to their destination IP address. Routers acquires an incoming frame, puts away the data-link header and trailer, makes a forwarding decision based on the destination IP address, adds a new data-link header and trailer based on the outgoing interface, and forwards the new frame out the outgoing interface. Switch: Switches are similar to bridges in that both route on frame addresses. In fact, many people use the terms interchangeably. The main dissimilarity is that a switch is commonly used to connect one-on-one computers. As a consequence, when a computer wants to send a frame to another the bridge gets the frame but just discards it. But the switch must actively forward the frame to other because there is no other way for the frame to get there. Bridge: A bridge is a data link layer device which is used to connect multiple LANs. It examines the data link layer addresses to do routing. Since they are not supposed to examine the payload field of the frames they route, they can transport IPV4, IPV6, Apple Talk, ATM, OSI or any other kinds of packets. Encryption: The process of obscuring information to make to unreadable without special knowledge, sometimes referred to as scrambling. The process takes the data to be encrypted and applies a mathematical formula to it along with a secret number (called an encryption key). The resulting value, which is called an encryption packet, is sent through a network. Decryption: It is the process of decoding data the back to its original form by giving that encryption key.

The play of to Kill a Mocking Bird. Discuss how you would produce :: English Literature

The play of to Kill a Mocking Bird. Discuss how you would produce the incident in which Atticus shoots the rabid dog "The play of To Kill a Mocking Bird" was adapted from a novel by Harper Lee. The story is set in Maycomb, Alabama in 1935, when racism was rife. The play deals with racism and shows how the blacks were exploited. The play is split into two acts; Act One is about a black man being wrongly accused of raping a white woman. It is in Act Two that the audience finds out that the legal system would wrongly convict a man, just because he is black. There are many incidents which occur in this play, but the one I am going to consider is when Atticus shoots the rabid dog. The part of the play where the incident of Atticus shooting the rabid dog occurs starts with Jean. At this point the spot light would be on Jean as she steps onto the stage and starts speaking. The incident is introduced when she says:- "Then a few weeks later something happened- something that made our father even more of a puzzle. The tension in the town about the approaching trial was getting drum-tight, but what happened had nothing to do with that - it had to do with a liver coloured bird dog called Tim." While Jean says that she would probably be standing at the front of the stage in the spot light. Behind her would be the set; which would comprise of the front of houses in Maycomb. At this point Jem and Scout would enter the stage, with Jem pulling Scout, and talking about Tim; although they do not realise he has rabies. Soon after, Calpurnia, a black housekeeper, would come onto the stage, as though she has just come out of the house; she would be wiping her hands on a tea towel. Calpurnia is not interested in the dog at this moment as she says in a sharp tone:- "What is it Jem? I can't come out every time you want me." It is not until Jem imitates the dogs actions - gulping like a gold fish and hunching his shoulders - that Calpurnia becomes interested. Unsure as to whether to believe Jem, Calpurnia points her finger at Jem and says with her voice hardening:- 'You tellin' me a story, Jem Finch? Jem goes on to explain how the dog is moving, he says 'Just moseyin' - but walkin' funny.' It is then that Calpurnia realises that the dog has rabies, and so hurries inside to call for help. At this point, she would have a

Immigration and Language in Call it Sleep Essay -- essays papers

Immigration and Language in Call it sleep Immigrant Allegory: Language and the Symbolism of Being Lost The symbolism of being lost is a universal immigrant theme that occurs throughout many immigrant literatures, particularly in Henry Roth’s Call it Sleep. Language, or lack of understanding it, has a profound contribution to the process of being lost. This contribution is shown earlier in the book, in a passage where David is lost trying to find his way home (Passage 1) and is mirrored later on in the book, when David and Aunt Bertha are lost in a museum (Passage 2). The restriction of the usage of language in both passages portrays to us the inevitable and ubiquitous immigrant dilemma: I talk, eat, and live like this new country with the intention of assimilation, but my lack of freedom with the language parallels my lack of freedom and acceptance in this new country – how can I overcome it? The similarities, differences, and dramatic ironic symbolism in these two passages will attempt to answer that question. The first obvious similarity between these two passages is that both of them deal with the superficial and latent meanings of being lost. In Passage 1, David is lost on the streets and is desperately trying to find his way to a familiar neighborhood. He asks a white gentleman (such an inference is due to the book’s description of the man having a blond moustache and his good command of the English language) whether or not he knows where Bodder Street is. Pronunciation differences between the two lead David on, what seems to be, a never-ending quest to find his house. The superficial meaning is that David is lost, trying to find his house. The latent meaning is that David is lost, trying to find a home: a place ... ...come the difficulty of belonging to this new culture because of his lack of freedom with the English language. It is this downfall that causes David to become lost in these two passages. In most cases, people who share the same language also share a similar culture, therefore forming a community. That community’s bond is in its language, which facilitates communication between its members. When a person who is not familiar with this community’s language is placed in it, that person will most certainly feel lost. David has shown us that the link between language and being lost is a universal immigrant theme that can be understood as follows: an immigrant can look, eat, and live like his new country but still feel lost, unless that immigrant learns to become completely fluent with the usage of his new country’s language. Bibliography: Henry Roth, Call it sleep

Divorce Essay -- essays research papers

The number of children who were living with only one of their biological parents from 1900 to 1972 increased by 700%. Can we call this beneficial on the child's maturing and mental stability and development? Between 1970 and 1996 the proportion of children under 18 living with only one of their parents grew from 12% to 28%. While the percentage of children living with both parents declined from 85% to 68%. As this century has passed, more and more divorces are taking place at an increased rate each year, and while it may be hard on the parents, it's detrimental to so many children. It confuses them, upsets them, and leaves them questioning many things, most of which they will never find out until they are older. From 1950 to 1980 there has been a total of 175% increase in divorces. The statistics now indicate, that half of all children will witness the breakup of a parents marriage, of these close to half of them will go on to see the break up of a parents second marriage, that's indicating a 25% increase each year! The latest figures released show that all in all, between 1970 and 1996 the number of divorced people has more than quadrupled. 10% of these children that witness this first divorce will go on to witness three or more family breakups. I am here to give my thoughts and opinions on the issue of now in this 20th century, the increased rate of children developing mentally without a fatherly figure in the family is harming the children's development. Tim Rotheisl...

Oral or written argument Essay

Given that the ideas can not be truly and completely explained by words, one have to recognize that every oral or written argument ever told or explained is inherently subjective. Therefore, every fact described by a human is an opinion, and every opinion is somehow a fact. Thusly, every word should be considered from two points of view: from the point of view of fact and from the point of view of opinion. This relates to the testimony before the court as well. Every judge should realize, that even the most honest person can interpret the facts wrongfully or simply mistake. Moreover, even the judge himself is not free from subjectivity, although the level of objectivity is one of the key factors determining his or her professionalism. Therefore, upon examination of the testimony, a judge has to consider it as one fact and witnesses’ probable level of subjectivity as another fact. At that it would be useful to classify the questions put before a witness during examination into two groups. Some of the questions are questions of fact (what’s happened? ), other questions are questions of opinion (do you think that? ). For sure, the second kind of questions includes a greater extent of subjectivity, although the first kind can not be recognized completely objective as well. In order to find out the truth, all the testimonies have to be reviewed in combination. Neither of the testimonies can be absolutely true and accurate. Only consideration of the testimonies and other proofs in the case would allow a judge to create a more or less straight story of the case. Question 2 As a judge, I have to answer several questions in order to determine whether a person with multiple personality disorder should witness or not. Firstly, I have to find out whether a person can witness at all. In order to do that I would call the experts to examine that persons’s mental condition and his or her state at the moment. In case the experts recognize, that the person is principally able to provide a valid testimony, I would further doubt his or her possible words and ask myself a second question: how critical the person’s testimony is for the case and how can it influence my view of the case. My decision can not be bases solely on the testimony of mentally infringed individual, yet his or her testimony may be usefull for clarification of some circumstances. I would rather rely on such witness to determine the facts, than in case I needed his or her opinion. In case I came to a conclusion, that I still need this witness, I would properly examine him or her in the presence of the experts who would observe the individual’s behavior during examination and inform me of possible deviations. Having completed the examination, I would consider how much do the words of the witness conform with other testimonies and proofs in the case. In case I would find no logical controversions, I would consider the words of such witness as a valid testimony. Yet I would keep in mind, that this testimony is provided by a doubdtful witness and critically evaluate this testimony. Works Cited: http://www. boogieonline. com/seeking/know/meaning. html

Acc202 Mod3 Case Essay

ACC202 Module 3 Case Pg.1 ACC202 Module 3 Case James Davis Trident University ACC202 Module 3 Case Pg.2 Explain the main differences between the absorption and contribution (behavioral, variable) income statements. Will net income always be the same under the two approaches? If not, explain the difference. Under absorption income statement, the cost of per unit of inventory is inclusive of direct material, direct labor, variable manufacturing overhead and fixed manufacturing overhead. on the other hand, in case of variable costing income statement, cost per unit of inventory is inclusive of direct material, direct labor, variable manufacturing overhead. In case of absorption costing income statement, the gross margin is computed by deducting the cost of goods sold from the sales. On the other hand, in case of variable costing income statement variable expenses are deducted from sales to arrive at contribution margin and the fixed expenses are deducted from the contribution margin to arrive at sales. In case of absorption costing, the inventories are always valued at full costs. On the other hand, under variable costing, inventories are always valued at variable costs. The net income under two approaches will be the same if the production equals sales. In case the production is more than the sales, then absorption costing will show more profit than the variable costing income statement because the closing stock is valued at high cost per unit compared to variable costing because of inclusion of fixed manufacturing cost in the cost per unit. See more:  The 3 Types of Satire Essay Comment specifically on why companies feel the need to create yet another income statement in a different format. What information can the company  gleam from this approach which is helpful as a tool in the decision making process. Managers need more ,and often times different, information than does outside organizations. The managers are the ones making the decisions that will affect the future of the company. The income statements that are created show much more detail and are formatted for specific reasons that are beneficial to the organization. ACC202 Module 3 Case Pg.3 Explain situations in which break-even analysis can be a useful tool. Provide a specific example. The goal of a break-even analysis is to show when a product is going to profitable. It allows managers to see what affects different cost changes have on the profit margin. An example of this is when Company A is developing product B. The break-even analysis shows all costs associated with producing that product. It also shows how much of the product must be sold in order to recoup the total cost of production. It will also allow managers to tweak things such as sell price to influence the outcome.

How Has Computer Hacking Interfered Modern Society Essay

How has computing machine choping inferred modern society? In this transition I will be speaking briefly about the basicss of computing machine choping from the yesteryear to the present. Computer hacking has changed more over clip ensuing in computing machine outgrowths to corporate system closures. This research paper will be speaking about three major parts of computing machine hacking. The first construct of hacking is the beginning of creative activity. The following portion will be how hacking has affect on the contemporary society. Finally. the last piece of information will be traveling over the hereafter of system choping. What is a drudge you may inquire your ego but non hold an reply or one word phrase for the term? A drudge has ever been a sort of cutoff or alteration. a manner to short-circuit or make over the standard operation of an object or system. The first computing machine hackers emerge at MIT. They borrow their name from a term to depict members of a theoretical account train group at the school who hack the electric trains. paths. and switches to do them execute faster and otherwise. A few of the members transfer their wonder and set uping accomplishments to the new mainframe calculating systems being studied and developed on campus. Choping groups begin to organize. Among the first are Legion of Doom in the United States. and Chaos Computer Club in Germany. The film â€Å"War Games† introduces the populace to choping. A computing machine hacker intends to destroy concerns executing an act much more unprincipled than an enthusiastic life scientist ‘hacking’ off at work or theory. The truth is that computing machine hacking is in fact easy in the general sense. but more consideration must be given. Some facets of choping are used in mundane life and you may non cognize that accessing wireless cyberspace from another person’s history is considered wireless choping even though your adoption there connexion. During the 1970’s. a different sort of hacker appeared: the phreaks or phone hackers. They learned ways to chop the telephonic system and do phone calls for free. Within these group of people. a phreaker became celebrated because a simple find. John Draper. besides known as Captain Crunch. found that he could do long distance calls with a whistling. He built a blue box that could make this and the Esquire magazine published an article on how to construct them. Fascinated by this find. two childs. Steve Wozniak and Steve Jobs. decided to sell these bluish boxes. get downing a concern friendly relationship which resulted in the initiation of Apple. By the 1980’s. phreaks started to migrate to computing machines. and the first Bulletin Board Systems ( BBS ) appeared. BBS are like the yokel groups of today. were people posted messages on any sort of subject. The BBS used by hackers specialized in tips on how to interrupt into computing machines. how to utilize stolen recognition card Numberss and portion stolen computing machine watchwords. It wasn’t until 1986 that the U. S. authorities realized the danger that hackers represented to the national security. As a manner to antagonize this threat. the Congress passed the Computer Fraud and Abuse Act. doing computing machine interrupting a offense across the state. During the 1990’s. when the usage of the cyberspace became widespread around the universe. hackers multiplied. but it wasn’t until the terminal of the decennary that system’s security became mainstream among the populace. Today. we are accustomed to hackers. crackers. viruses. Trojans. worms and all of the techniques we need to follow to battle them. Hackers were classified into three unusual types the first class is called In-house hacker. In-house hacker is an employee who is responsible for operating and keeping the system. who interacts instantly with the system as a coder or informations entry employee and is cognizant of all the system security capablenesss and spreads. He and should be the guard of the system but for different motives he hacks the system and gets what he needs bewraying all the trust given to him. The 2nd type is called ace hacker who doesn’t interact with the system but at the same clip proctors the system on day-to-day footing and has an oculus on what is traveling on and what type of informations is entered at what clip so depending on the entries he decides the minute he should acquire these information and recover them for personal motives while the 3rd type is called professional hacker and this hacker is really strong and capable of acquiring any type of informations. he has the ability of carrying the user or the operator to supply him with the needed information by programming fast ones or user friendly screens and this sort of hackers frequently gets alone preparation specially when being used in military undertakings as what happened in the cold war. Thesiss are merely brief ways hackers have impacted the modern universe we all live in. Within the past twelvemonth at that place have been two major instances right in the country. Both involve extended harm. and both are presently in tribunal. The closest instance is that of Thomas Crandall. otherwise known as St. Elmo’s Fire. Crandall is accused of estroying attending and subject records in a computing machine at Central Technical and Vocational Center. Police charge that Crandall used a personal computing machine at his place to entree the computing machine. He is besides accused of making $ 25. 000 in harm to files at Waste Management Inc. of Oakbrook. Ill. Crandall’s lawyer claims that many other pupils besides had entree to the computing machine. and that to individual out Crandall in unjust. Hackers are responsible of the immense development in computing machine and cyberspace engineering. but these yearss we consider them as stealers and interlopers who penetra ted our ain privateness and used the accomplishments they were buttockss for their ain benefit. Hackers have different sentiments and motives. However. they all portion the spirit of challenge and ever seeking to turn out their capablenesss of making what all believe is impossible possibly because they were mistreated. or uncertainties surrounded their abilities and past accomplishments. Hackers believe that information should be shared and they fight against information owning. Effectss that choping caused and still doing to the society can’t be ignored. Hacking nowadays is taking new stages and the danger is increasing because we are now populating in a society that runs by ICT. and any onslaught to the ICT particularly in advanced states will do critical effects. ICT still lacks a powerful security tools that are capable of tracking. catching hackers. and protecting computing machine systems from their onslaughts. My ain position is that the best manner to protect ICT from hackers is to analyze their psychological science and seek to understand their manner of thought. because hackers are human existences. who have two sides ; evil and good. and they used to demo their good side but all of a sudden they turned to be evil. The grounds which caused the transmutation from good to evil persons should be studied and given the highest precedence in the war against hackers because since we put our custodies on the cause. we can repair it to make for better effects. Peoples can grocery store. earn grades. receive bank statements and pay measures from their laptop or Personal computer. The possibilities are endless when it comes to simplifying life with the aid of the World Wide Web. but at the same clip possibilities are eternal hackers to perplex your life with cyber offenses. The Merriam-Webster Dictionary defines a hacker as both â€Å"an expert at programming and work outing jobs with a computer† and â€Å"a individual who illicitly additions entree to and sometimes tamping bars with information in a computing machine system. † Those three grounds I have stated above were the hackings past present and future. Until engineering Michigans turning the possibility of hackers is limited less.

Reflection Journal – Identity

reReflective Practice Journal Identity GNED 500 – 120 Brandon Tito – 300637791 Professor Selom Chapman-Nyaho Identity â€Å"The aspects of individuals and groups that include: language; ethnicity; gender; experience of migration/immigration; social class; political affiliations; family influences; age; sexual orientation; geographic origin; experience or absence of experience with discrimination† (GNED 500, p. 73). Our identity is the key that grants us a representation of who we are as citizens and what we stand for. Personal identification is what separates and differentiates us apart from other individuals in our world.Identity is strongly significant in our lives because the development of personal attributes and contributions is what makes us unique and superior in our own way. Our perspectives and points on how we view the world are also based on our personal identities and how we establish that image. A. How did it affect your thinking? While acquiring an adequate understanding about personal identities, it is important to build and create a â€Å"personal brand† for one’s self in which can be recognized and looked upon by others in a positive manner. B. Has it changed your perspective on a particular issue?How? Yes, having a clear understanding of our personal identities has changed my perspective on a particular issue. As emphasized on a familiar quote, â€Å"become a leader, not a follower†, this quote indicates a great representation of personal identities as well as personal branding. An individual should be superior to their own brand as well as justifying and claiming ownership of their identity and not mirroring a representation of someone else’s identity and brand. C. Has it raised any new questions? Most definitely, the term â€Å"identity† has had many questions raised in previous times.Many of these questions were raised from many different perspectives such as political, scientific, gen etic, academic, religious, and symbolic structures. All of which are social structures in our society. D. Will anything you learned change your actions? If so, how? Of course, with the knowledge acquired about the many different social structures and ideologies in our society, I am more observant and aware of misinterpretations that are presented in our society. It’s important to understand that social structures, ideologies, and the environment we surround ourselves in play a substantial role in shaping our personal identities and brands.Course Feedback Overall, my duration in partaking in the GNED-500 course has been a great academic experience for me. It’s a great opportunity to have a better understanding of the social structures and issues/concerns that shape our society today. With also being given the opportunity to establish a more superior personal brand towards myself†¦ Knowledge and understanding is power! I recommend this course to everybody, this is a great decision to enhance your personal knowledge on current and previous events that help build and sustain our society.

Drug Discovery .. (Translation Of Science Into Medicines) Essay

Drug Discovery .. (Translation Of Science Into Medicines) - Essay Example any drug development studies failing to enter clinical practice after spending billions of dollars during their development, the scientific community is taking steps to create a more focused, effective and less expensive methods to develop new drugs (Tho & Graham, 2006). The probability of developing such drugs is becoming increasingly common with advancements in cellular and molecular biology. The field of translational studies involves the use of these latest techniques in drug development prior to their entry in to the clinical trial phase. These techniques help to provide a comprehensive view of the disease, identify molecular targets and then to develop specific drugs that would act against these targets. These lead compounds can be selected from a vast array of chemicals using screening techniques such as chemical library screening. Other techniques used in translational studies are microarray technique which is used to study the expression of genes and the use of genetically e ngineered humanized mouse which is useful in studying the biological responses to drugs in vivo. In addition, toxicology studies reveal potential drug toxicities to major organs such as the liver and the heart. More recent development include the use of computer simulation tools that are helpful in predicting the systemic exposure of the drug within the human body, pharmacokinetic and pharmacodynamics studies to determine the efficacy of the drugs developed, and the development of biomarkers prior to clinical testing of the drug which could help in understanding disease progression and its prognosis (Yu, 2011). The major challenge posed by translational research is integration of data obtained from these various technologies and using them appropriately to determine the effectiveness of clinical studies (Tho & Graham, 2006). 1. Tho, L. M. & Graham, K. (2006) Translational Research- A Multidisciplinary Approach. Annals Academy of Medicine. [Online] 35 (6), 441-442. Available from

The pro and con sides to using MULTIPLE CHOICE TESTS at the college Essay

The pro and con sides to using MULTIPLE CHOICE TESTS at the college level - Essay Example Scoring hundreds of long essays is impossible when time is short, and thus, examiners find it practically easy to mark multiple choice tests. The number of test-takers is also important. Multiple choice tests are famous for their practicality and reliability in this manner. They can be scored very easily through a computer scanner. This has also reduced the testing time. So, time is saved at every step while using multiple choice tests. Tamir suggests in his research that multiple choice tests are especially beneficial for those students who are not good at writing. Writing is a skill which every student does not possess; and, often times it so happens that those students pass with flying marks who are skilled at explaining the theoretical portion. Multiple choice questions benefit those who are skilled more at understanding concepts, whether or not they can write well. Now, let’s discuss the cons. Ajideh and Esfandiari compared the usage of multiple choice tests and cloze-tests while examining vocabulary proficiency of the students. The sample contained 21 Iranian EFL students. They found out that the students who performed on cloze-tests could have shown the similar results when they were examined through multiple choice tests. So, according to the researchers, multiple choice tests could be substituted for multiple choice tests. This explains that students’ proficiency does not increase when the method of examination is multiple choice tests. Woodford and Bancroft assert that when a student is examined through multiple choice questions, he has 25% possibility of guessing the right answer, even if he does not know the answer at all. He can guess by eliminating the possibly wrong answers, thus reaching the possibly correct answer. Thus, even if he does not possess sufficient knowledge, his right guessing may lead him to success. This is the discrepancy of multiple choice tests, which can be

The Effect of Emotional and Psychosocial Difficulties and Anonymity in Research Proposal

The Effect of Emotional and Psychosocial Difficulties and Anonymity in Online Interaction on the Willingness of Teenagers to Engage in Cyber Bullying - Research Proposal Example Ultimately, it is similarly crucial to become aware of useful ways of addressing episodes of cyber bullying when they happen. Statement of the Problem Cyber bullying, not like traditional bullying, can take place anytime and anywhere, and it is virtually unlikely for a cyber bullying victim to avoid or walk away from the cyber bully. Moreover, in majority of cases, even though the cyber bully knows or is acquainted to the victim, the latter does not know his/her attacker’s identity. Hence, according to some studies (Willard, 2006), anonymity in the Internet is the primary motivator of cyber bullying. However, aside from this external motivation, there are also internal ones such as emotional and psychosocial problems (Ybarra et al., 2007) which are discussed in the latter sections of the research proposal. This study focuses on the motivations behind the behavior of cyber bullies. More specifically, this study explores potential motivators, namely, (1) emotional and psychosoci al factors (e.g. depression and anxiety) and (2) anonymity in the Internet. Brief Background to the Problem Cyber bullies have distinct social and psychological profiles. Teenage cyber bullies, according to Pellegrini and colleagues (1999), have a tendency to have low self-discipline and high emotionality. Even though bullies are reactively and proactively antagonistic, bullies seem to exercise proactive hostility to build authority and power in their peer groups. Bullies display little or no empathy to their victims (Pellegrini et al., 1999). As reported by Menesini and colleagues (2003), bullies are usually aware of the feelings of their victims but are reluctant to or incapable of letting those sentiments affect them. Schoolyard bullying and cyber bullying equally... Cyber bullies have distinct social and psychological profiles. Teenage cyber bullies, according to Pellegrini and colleagues, have a tendency to have low self-discipline and high emotionality. Even though bullies are reactively and proactively antagonistic, bullies seem to exercise proactive hostility to build authority and power in their peer groups. Bullies display little or no empathy to their victims. As reported by Menesini and colleagues, bullies are usually aware of the feelings of their victims but are reluctant to or incapable of letting those sentiments affect them. Schoolyard bullying and cyber bullying equally affect bullies. Bullying, as reported by Ybarra and colleagues, is correlated with serious psychological and health difficulties among adolescents such as poor academic performance, emotional distress, anxiety, and depression. Research on cyber bullying is a new field of inquiry. Even though studies on cyber bullying focus on the effects of bullying on victims and other researchers have explored the frequency, associated factors and forms of victimization and incident of cyber bullying in depth, there remains an inadequacy of findings about the factors that motivate adolescents to engage in cyber bullying and whether cyber bullying behaviors can be predicted from certain psychological and social needs. These issues are addressed in the study.

Company report Research Paper Example | Topics and Well Written Essays - 1500 words

Company report - Research Paper Example One of those companies is Facebook. This is a company that was conceived in a Harvard dorm room but whose services are available almost everywhere and therefore we affects the lives of multiple people. The founder was a young student, Mark Zuckerberg. Facebook today has become the industry leader along Twitter and other companies. They are more commonly referred to as social media. Their power seems to have no bounds too. Its initial aims were to connect multiple numbers of people over the internet. Those aims have largely been fulfilled today since Facebook has around a billion users around the world. Such a huge number undoubtedly poses huge potential for the company. The company recently became a publicly listed company amidst tension that such a move was bound to fail. The critics say that Facebook has to explore alternative revenue streams like advertising, precisely the sort of thing the users abhor. This leaves the company in a sort of dilemma. In the course of writing this company report, I shall analyze this company from different viewpoints. The first is from its performance in the markets. This is usually a reliable indicator for the sort of direction in which a company is headed. The main advantage of the markets is that they respond simultaneously when anything important involving the company happens. Another yardstick shall be marketing. This is usually the be all and end all as far as some companies are concerned. We shall look at the role that advertising has played in this company. The third yardstick shall be the financial position of the company. We shall explore whether the company is self sustaining. Finally we shall look at the important matter of strategy and planning. Which mix of the two has the company employed and how successful has it been. After a long period of anticipation and speculation, this company finally went public on the week of 29th January 2012. Facebook’s offering to the public also doubled up as

Presentation diagnostic Essay Example | Topics and Well Written Essays - 750 words

Presentation diagnostic - Essay Example In this presentation, there was no room for the audience to have doubts regarding essentiality of the product. In terms of benefits, there existed a strategic explanation of the product’s advantages o to the purchasing managers. There was a demonstration of various benefits, which departments would accrue by taking the product as one of their lines of operation. I also demonstrated cost benefits to the managers in relation to the prices that they will charge to their respective final consumers. There was also a demonstration regarding the maintenance simplicity of the product, which will be a benefit to the firm. In practice, an organization results to adopting products that will provide maximum benefits in terms of costs. My benefits captured all the necessary cost issues that would allure purchasing managers to adopt the product. There was also efficient way of dealing with the objections of the clients in different ways with the intention of the distributing department main tain the firm’s reputation. This is via availing probable visual presentation of some of their questions and trying to offer answers though the audience had the chance to inquire for more expounding. This is especially applications of the specific product in real life situation whereby the audience intended to know. The use quotes of some of the management practitioners also provided a ground to win the attention of the purchasing managers. Additionally, efficient application of research work to challenge any objection of the audience also made a fundamental part towards my success though not much compared to what I had expected. The other way that was applicable in my presentation encompassed adopting a convincing tone with the intention of convincing the audience to accept my point of argument. 2.3 Past experience in presentation in relation to performance and communication orientation I have had the experience of presenting in one of the famous contests. This was my first experience where I presented about Beatles and rolling stones, which took a long period while trying to prepare myself appropriately. Before the real presentation, I experienced bouts of fear and nervousness due to the fact public presentation has not been my favorite until I tried it with Beatles and rolling stones. This enabled me to gain essential skills in presenting, which encompassed knowledge on how to win audience’s trust while on the stage. The real task while on stage taught me varied aspects on how to handle each presentation so that in future they will turn out to be successful. This is especially through comments, which I received in the first presentation that helped me in evaluating my weaknesses while addressing the audience. One of the evaluators who attended the presentation commented on my dressing in the earlier presentation. 2.4 Motley’s presentation strategies Motley who is communication practitioner identified some elements that might not be nece ssary when performing visual presentation. Among these factors encompassed memorization of a representation known as an inevitable aspect for any presenter in shunning common mistakes when selling his or her idea to respective audience. Motley cited the mastery of content is necessary but memorization will be like proving of facts in communication. Therefore, presentation ought to flow naturally in order to heighten

Organizational Change Essay Example | Topics and Well Written Essays - 1750 words

Organizational Change - Essay Example The power and strength of the Army is not only the number but also lies in the contribution from individual soldier. This is because it is not important for them as to what job they have or which rank they hold. The Army has more than 675,000 soldiers which are divided into 488,000 soldiers on Active Duty who are ready to react and fight immediately in any mission and 189,000 soldiers in Army Reserve, who can be mobilized rapidly when their combat and military skills are required in situations of national emergency or in global conflicts (ABOUT THE ARMY). As the US Army consists of a large number of soldiers, it has to be organized into separate units, each with a respective leader and a reporting structure. The Army is separated into two major components as the Active Duty and the Army Reserve. Those who operate in any of the component are known as the Enlisted Soldiers, the Non-Commissioned Officers (NCOs), the Warrant Officers or the Commissioned Officers. The following diagram shows how the Army operational unit is organized (ABOUT THE ARMY). The US military life is tough regime where the soldiers are trained to live and survive in tough conditions. No form of social contact is allowed for them. The result is that when these soldiers return back to their social lives they face difficulty in accommodating themselves with the social culture. They get repulsed by the poor physical fitness of the civilians, by the uncivilized uncouth behavior according to their standards, and by what these army persons considered as pervasive selfishness and aimless consumerism. Many also found themselves avoiding their old friends, and some even experienced problems in communicating with their own families. These soldiers develop this feeling that the civilians are only interested in being losers and underachievers. They find the general civilian life nothing but nasty (The

Motorola Case Study Example | Topics and Well Written Essays - 1000 words

Motorola - Case Study Example Furthermore, the increasing demand of products and services it offered from the start proves to be a remarkable opportunity in its part. This means that if this has to be applied in the present context, since Motorola has long been established in its industry, the opportunity is that it has the chance to cater the increasing and ever changing market needs. Another opportunity for Motorola is the vast demand for products and services it is in tune with at present. The existence of LG, Apple Incorporated, Nokia and other related companies is a proof that the industry where Motorola belongs is competitive and is a good venue to conduct business that will last for long. Apple Incorporated is known for its highly innovative products. This means that there are more things to be discovered in the industry where Motorola is engaged at present time. This means an opportunity for Motorola to discover and rediscover things on its own and introduce them to the market. The above mentioned opportu nities are very important for Motorola. However, there are also corresponding threats that move against it. The first significant threat is a struggling economy. The 2008 economic downturn proved to be a remarkable threat in the case of Motorola. Economic condition is outside the bound of Motorola’s control and it definitely has significant impact on its part. Its financial stability has been quiet affected by this. This resulted to Motorola’s struggling mobile device business which further frustrates its stakeholders at the bottom line. Another significant threat is Motorola’s competitors. The varying strategic moves of Nokia, Samsung, Sony Ericsson Mobile Communications, LG Electronics, Apple Incorporated and others have tremendously created varying competitive advantage in Motorola’s industry. Each competitor is trying to create their own competitive advantage because they want to be a cut above the rest of the key players in the industry (Porter, 1990 ; Porter, 1998). For instance, the reason why Nokia was not completely harmed by the 2008 economic downturn was due to its ability to effectively use its strategic acquisitions, partnerships and industry leading in research and development. Apple Incorporated on the other hand is aiming to be the top and leading company of products in their latest innovation. LG anticipates customer needs. Samsung is very aggressive in its expansion into developing markets while enhancing strong brand awareness for its high end products. However, it did not overlook the fact that it needs to significantly manage its mid-to-low range products to cater a wide range of customers. It is important to consider that the competitors of Motorola are significant threats because they know what they need to do in the market and they are certainly good at creating strategies that will push them up to their competitive advantage. B. Describe the company's most prominent strengths and weaknesses. Motorola’s strengths involve its ability to understand fully the entire industry and the changing needs of the market. This is due to the fact that it is the pioneering company in its industry. Thus, it has remarkable ideas that could be turned into profit. It has sufficiently created a name and has long been established compared to its competitors. In this, there is no way that it could not surpass the competition. Thus, what it needs to do now is observed what the competitors

Marketing Simulation Essay Example for Free

Marketing Simulation Essay The rest of the sales force time would be equally divided between the segments B, C and D. Change in Strategy: During simulation, we studied the effects of percentage increase of sales force time for each market segment individually along with decrease in list price. As we proceeded with the simulation, we found that * A decrease in list price and an increase in percentage sales force time for segment D would be more fruitful in the short run as it will increase the overall sales volume and overall profit much more than in the case where sales force concentrates more on segment A. This is because the overall market share of highly price sensitive customers in segment D and â€Å"small volume customers† is almost three times of segment A’s market share. * So, even though the profit margin in segment D and â€Å"small volume customers† is lesser than that for segment A, the overall profit was greater because of the scope of much higher sales volume. * Hence, we decided to increase the sales force percentage time for segment D to 40% and for segment A to 30%. We decreased the sales force time percentage for segments B and C to 15% each. Also, we reduced the list price from $142 to $136. Challenges during simulation: During simulation, the primary challenge we faced was to decide on the key parameters that should be changed and the level of change in each of these parameters to get optimum profit and higher market share. Key decisions: Since our initial strategy was to increase the sales volume of segment A, we decided to concentrate on sales force time percentage parameter for each segment and the list price of the motors. We studied the effects of percentage increase of sales force time for each market segment individually along with decrease in list price on the overall profit of the company. Solution Analysis Decrease in list price from $142 to $136 and increase in sales force time percentage to 40% for segment D and to 30% for segment A. As we proceeded with the simulation, we found that * A decrease in list price and an increase in percentage sales force time for segment D would be more fruitful in the short run as it will increase the overall sales volume and overall profit much more than in the case where sales force concentrates more on segment A. This is because the overall market share of highly price sensitive customers in segment D and â€Å"small volume customers† is almost three times of segment A’s market share. * So, even though the profit margin in segment D and â€Å"small volume customers† is lesser than that for segment A, the overall profit was greater because of the scope of much higher sales volume. * Segments B and C sales force time was reduced because of the high competition that MM faces in these categories on the basis of the rmal resistance parameter. Hence, in the long run, MM can target for higher profit margins than for higher sales volume if it concentrates the sales and market research resources to segments A, B and C. The main challenge with this approach is that it would difficult to attract customers from these segments who are already loyal to competitors and would require much more effort from the sales team and the product development team to come up with a product that caters the needs of these segments especially segments B and C where MM has yet to prove its overall competitiveness. Learning and experience This simulation exercise helped us to validate whether our suggested solution was an optimal one and also helped us to arrive at new solutions through experimentation which finally led to change in our overall decisions and strategy. It also showed us how varying a single parameter can change the overall market share and overall profits of the company. Finally, it reinforced the theory behind segmentation of customers according to their buying behavior to achieve optimal marketing strategies.

The Role of the Leader in Evaluating Data to Improve Quality and Safety Essay Example for Free

The Role of the Leader in Evaluating Data to Improve Quality and Safety Essay The Role of the Leader in Evaluating Data to Improve Quality and Safety Introduction   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Quality and safety has been acknowledged as significant issues in constructing the delivery of appropriate and approachable health care. To improve safety and quality the leader must analyze data and interpret the information to develop s system for clinical performance by supervising, motivating and constructing a quandary solving plan to deal with the scheme of medical inaccuracy. The purpose of this paper is to explain the significance of the responsibility of the leader in evaluation of data to perk up safety and quality aspects.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   In the telemetry unit, patients are in an unremitting electronic supervision. Telemetry practice is a very significant tool in hospitals since it helps physicians to examine heart rhythm, heart rate, breathing from different locations in the nursing station. Telemetry is usually recommended subsequent to heart attack, or when a patient is developing some problem or is acutely ill. Data evaluation in the telemetry is very vital because it helps nurses to monitor the patients by reading the bedside monitors or telemetry readouts while evaluating the patients. This will help the nurses and other hospital personnel to respond swiftly to an emergency (Guo, 2008). Data overview   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The average age of patients in the telemetry unit is 72.4 years old, and every patient in the unit has heart disease. The data shows that 68% of the falls were women, who are more susceptible to diuretics. Women are more susceptible to osteoarthritis since bone mass decreases quicker in women as compared to men due to poor nutrition, sedimentary lifestyles and hormonal alterations are therefore more probable of falls. Peripheral sensations dwindle with age and loss of foot affectionate sense in the aged contributes to postural unsteadiness. Postural permanence is an expertise that relies on the harmonization of sensory and motor systems to direct body activities. As component of the aging development people cannot hear, see, feel, smell or taste like they used to do in the early years. The data reveal that fifteen falls in the four-month phase happened between seven in the evening to eleven in the dawn.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Data also reveal that 12% of the patients have secondary diagnosis of disorientation. Confusion in the old age that happens late in the sunset is known as sundowner’s disorder and is amplified perplexity, confusion and is general in telemetry patients. Data reveals that there was only one fall during the eleven pm shift to the three am shift, and on the three to seven shift there was only one fall, the nursing subordinate provides supplementary support for the patients and nurses as well as other basic health care to patients in nursing homes or in hospitals. Data reveals that there were nine falls between 7 in the morning to eleven in the evening. There were seven falls between 11 in the evening to 3 in the morning. And finally there were 14 falls in the 3 in the morning fall to seven in the evening shift. There was a total of 47 seven falls in the 4 months of data evaluation of the elderly people. Some of the old age disorders that causes falls are irreversible, chronic and degenerative ranging from mild to severe hence they require close attention. Appropriate data entry and interpretation is very crucial in the nursing practice. The patients are in diuretics and thus they require constant check up and monitoring so that the doctors can check potassium levels and monitor how the kidneys of the patients are functioning (Murphy, 2012). Quality improvement plan   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Quality health concern is defined as the extent of how health services increase the probability of achieving desired health results and are consistent with existing professional acquaintance. Quality health care should meet the following aims set by Institute of Medicine. The six aims include: efficient, safe, timely, equitable, effective and patient-centered. The process of care measures help to access whether the health concern performs procedures that have been established to attain the aspired objectives and evade those processes that are inclined toward impairment (Murphy, 2012).   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   The objectives of evaluating health care value are to establish the impact of health care on aspired upshots and evaluate the extent to which health concern adheres to procedures approved by the professional consensus and is unswerving with patient predilections. Measures of safety and quality can follow up the process of quality enhancement initiatives using external standards. Total quality model is another significant strategy since involve teamwork, systems thinking, organizational management, and change and defined processes to create an atmosphere for advancing health care quality (Retrieved from http://www.ncbi.nlm.nih.gov/books/NBK2682/).   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Quality improvement is defined as systematic, data-guided operations structured to bring instant advancement in delivering health care in specific settings. Medical errors are usually caused by process or system failures, thus it is vital to adopt process-advancement procedures to acknowledge ineffective care, inefficiencies, and preventable mistakes to persuade changes related with those systems. Quality improvement includes: effects analysis, lean, Plan-Do- Study-Act, failure modes, root-cause analysis, and six sigma models. These techniques involve evaluating performance and using results to update change (Rowe, 2013). Leadership characteristics   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Support and commitment. Leaders should work as a team and always place the patient as the center of care regardless of the prevailing cultural changes. Nurse leaders should be committed to empowering the patients and their families by partnering in their personal care.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Transformational leadership is another quality that leaders should embrace changes in nursing practice. Nurse leaders need to be updated about safety measures of improving safety. Nurses can learn to improve care by learning from errors by incorporating safety procedures in their daily work flow. Summary   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Safety and quality is very crucial in creating the delivery of successful and approachable health care. Quality improvement involves appropriate analysis and interpretation of data to develop a scheme for clinical performance by constructing a quandary solving plan to deal with errors in nursing. Appropriate data evaluation is crucial since nurses are required to respond quickly to emergencies especially if they are attending to old patients.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Aged patients are more susceptible to many diseases especially women. Aged patients experience hormonal changes, poor nutrition and sedimentary lifestyles which place them at high risk of certain disorders. Patients suffering from certain disorders can benefit from telemetry unit services since they will learn about their conditions, their causes and techniques that can be applied to manage those conditions. Patients under diuretics should be attended frequently so that the nurses can monitor their potassium levels as well as the functioning of their kidneys. Quality of health care is very important since it can reduce number of patient falls. References Guo, K. L. (2008). Quality of health care in the US managed care system: Comparing and highlighting successful states. International Journal of Health Care Quality Assurance, 21(3), 236-248. Murphy, W. A. (2012). Improving Patient Safety and Quality: A Focus on Falls. Home Health Care Management Practice, 24(1), 62-64. Rowe, R. J. (2013). Preventing Patient Falls: What Are the Factors in Hospital Settings That Help Reduce and Prevent Inpatient Falls?. Home Health Care Management Practice, 25(3), 98-103. Tools and Strategies for Quality Improvement and Patient Safety. (n.d.). ncbi. Retrieved July 2, 2014, from http://www.ncbi.nlm.nih.gov/books/NBK2682/ Source document