Isolation of Aspirin Free Essays

Once the aspirin is prepared, it is isolated from the reaction solution and then it is purified. The aspirin is insoluble in cold water, and it is isolated by filtering the chilled reaction solution. Purification is essential to remove any unreacted salicylic acid and acetic anhydride as well as the acetic acid product and phosphoric acid. We will write a custom essay sample on Isolation of Aspirin or any similar topic only for you Order Now Acetic anhydride is caused to decompose by the addition of water once the formation of aspirin is complete. C4H6O3 (Acetic anhydride) + H2O (Water) ————————- 2C2H4O2 (Acetic Acid) The acetic acid and phosphoric acid are water soluble and it is removed by washing the aspirin with chilled water. Salicylic acid is only slightly soluble in water and is not completely removed in the washing steps. Phosphoric acid can be used instead of sulphuric acid if desired to obtain the higher yield, as sulphuric acid reacts more readily with the organic molecules involved in the reaction than phosphoric acid. However, phosphoric acid does not absorb water in the reaction; therefore it may be a slower process. Final purification is completed by the process of Recrystallisation. By recrystalising the crude aspirin slowly, it was possible to obtain large crystals with an exact structure by allowing the aspirin molecules to join together in a precise way. The regular molecular crystal structure of the final product makes it more difficult for impurities to be included, eliminating impurities present in the formless crude product. The impure aspirin is dissolved in warm ethanol. The solution is then cooled slowly, and the aspirin crystallises out of solution leaving the salicylic acid and other impurities behind. In my experiment, pure aspirin was obtained after filtering out the impurities and excess reagents through the filter paper. A method to check a solid compound’s purity after recrsytallisation is to check its melting point. The melting point of a compound can be used to identify it and also to estimate its purity. Normally an impure compound will show a melting point which is lower than that of a pure compound. Therefore, if the sample of aspirin melts at a temperature below the accepted melting point two possibilities can exist; either the sample is impure or it is not aspirin. A pure substance will melt sharply at 1-20C per minute when nearing the expected melting point in order to get a more accurate range. An impure compound will melt over a wider temperature range. How to cite Isolation of Aspirin, Papers

Client Retention by CRM Technology-Free-Samples-Myassignmenthelp

Question: Discuss about the Client Retention and Brand Image Development by CRM Technology. Answer: Introduction This report depicts the importance of developing proper customer relationship management system in the business organizations to build secured relationship between the consumers and the organizations. With the technical excellence of CRM the business organizations will be able to obtain client retention (Dalir et al. 2017). From the business perspectives it can be said that, the performance of the company will be improved through CRM technology. Marketing is not just about the organizational development but also manages the matter of sales and supply however the continuous development and the effect of after sales services to the consumers with a long term relationship could also be added with the help of Customer Relationship Management system. The role of CRM in business organizations, its goal, benefits are also elaborated below. In addition to this, the factors of customer retention and the KPI of customer retention programs are also illustrated in this report. Background In order to develop relationship between the consumer and the service providers since last two to three decades the organizations have started using the concept of Customer Relationship Management (CRM) technology. Both short term and long term strategies are needed to be incorporated to increase their brand value for gaining more number of consumers and also to retain their existing consumers (Garrido-Moreno, Lockett and Garca-Morales 2014). According to the current market trends, the primary concerns of the companies are no longer to achieve market leadership and conquering market as well inspite of that the organizations should ensure that the contribution of the activities are helping to gain mutually profitable relation with proper consumers (Ascarza et al. 2016). The relationship between the buyers and sellers helps to reduce the rate of negative consequences from the functional and operational activities of the business organizations. Consumers are the focal point Marketing Marketing is referred to as a continuous as well as persistence process, implementation and follow up. Marketing plays the most active role for business planning in different ways. In case of market formulae for success, the customer value is the key integrant (Bukhari and Kazi 2016). The product quality and service served by any business organization should be consumer focused so that long term success could be gain eventually. In order to develop an acceptable definition to de-limit the business domain, the features of CRM are needed to be analyzed by the executives of the business organization. It also helps to maintain both the offline and online marketing. Apart from this marketing also helps to build relationship among customers, corporate management, suppliers and competitors. It also helps to gain competitive advantages from the marketplace (Jain and Patel 2016). Moreover, it can be said that CRM helps to define the factors those are useful to understand the different ways to satisfy both the new as well as existing consumers. Customer relationship management Goal of CRM After analyzing the operational and functional activities of different business organizations it has been found that, their goal is to obtain effective as well as measurable revenue and competitive advantages simultaneously. The leading objectives rather goal of CRM is to satisfy the consumers through their product and services (Trainor et al. 2014). It also helps to make their service much efficient to attract new consumers and also to retain the existing consumers. The extreme sales approach will also resolve the business gaps. From the value chain analysis model it is found that with CRM technology both the primary stages and supporting condition will move towards business profit and customer retention. Benefits of CRM The benefits for which most of the business organizations use CRM as a technology include the following: CRM helps the business organizations to grab new consumers and also in customer retention Through integrated campaign individual segmentation could be analyzed and also high service level delivery become possible with the help of CRM technology (King, Dhameeth and Kim 2017) The business efficiency could be grown efficiently, to increase greater business agility It can establish secured relationship between the consumers and the service providers It could safeguard the functionality and operation of any business organization (Dalir et al. 2017) CRM helps to prevent sensitive information from the external assault Customer retention Advantages of customer retention strategy With the help of Customer retention strategies both the stakeholders and the company owners would be able to gain the following list of benefits: It is cheap than acquisition It helps to bring more number of loyal consumers so that the business can obtain more profit The brand image would be stand out from the crown of business The engaged consumers will be able to provide more feedback to the consumers (Bukhari and Kazi 2016) Through CRM the consumers will be able to increase the brand loyalty of the organization Factors of customer retention The list of critical success factors those are helpful for the company to drive the consumer retention strategies. If the business organizations are willing to upgrade the consumer retention then certain strategic marketing factors are required to be considered by the company executives and the factors are as follows: Both the existing and newly grabbed consumers are needed to be analyzed in terms of the satisfaction level and product and service level expectation (Trainor et al. 2014) The consumers expectation should be managed well The consumers service is improved in terms of lifetime value Customer retention as a key to business retention Customer retention is referred to as a key to business retention as it helps to boost the profitability of the business. Different reasons are there for which customer retention is considered for measurable business success. Customer is a key for the business success due to the following reasons: It helps to save money and time as well during the business operation and functionalities Profits could be achieved in a repetitive manner The process of advertising become easier from the business perspectives Te retained consumers are able to serve valuable feedback to the consumers Figure 1: Customer retention factors (Source: Dalir et al. 2017, pp-20) Key performance indicators of customer retention programs Key performance indicators are used in the business organizations to serve both internal as well as external clients actionable metrics with easily accessible, customized and effective efficiency to the business operations (Bukhari and Kazi 2016). It helps to measure business goals, vital information, and continuous business success factors. The list of KPI those are necessary for customer retention programs are as follows: Financial metrics (Profit, cost, cost of goods those have been sold) Customer metrics (lifetime value, satisfaction and retention) Process metrics People metrics Customer metrics Conclusion From the overall discussion it can be concluded that with the help f the CRM technology any business organization would be able to build secured relationship between the consumers and the service providers. In the current business world the concept of CRM and its impact in consumers loyalty is constantly obtaining huge attention. One of such strategies is focusing on consumer loyalty which is viewed in terms of automakers. In order to gain consumer retention brand loyalty is the most important thing that should be focused on. In order to identify and satisfy the consumers all the significant critical success factors are needed to be analyzed by the project executives so that it could retain their existing consumers and other consumers as well. The profits for which consumers are using CRM technology in the business organization are elaborated. In addition to this, the key performance indicators of consumers retention programs are also elaborated in this report. References Appel, G., Haenlein, M., Libai, B. and Muller, E., 2017.Customer Retention in a Product Platform World(Doctoral dissertation, University of Maryland). Ascarza, E., Neslin, S.A., Netzer, O., Anderson, Z., Fader, P.S., Gupta, S., Hardie, B.G., Lemmens, A., Libai, B., Neal, D. and Provost, F., 2016. In Pursuit of Enhanced Customer Retention Management: Review, Key Issues, and Future Directions.Customer Needs and Solutions, pp.1-17. Bukhari, A.N. and Kazi, R., 2016. CRM triggers effectiveness through Customer Selection Orientation, Business Cycle Orientation, Cross-Functional Integration and Dual Value Creation: Myth or Reality.Journal of Marketing Management,4(1), pp.163-171. Dalir, M., Zarch, M.E., Aghajanzadeh, R. and Eshghi, S., 2017. The Role of e-CRM in the Quality of Customer-Bank Relationship.Human Resource Management,4(2), pp.12-22. Garrido-Moreno, A., Lockett, N. and Garca-Morales, V., 2014. Paving the way for CRM success: The mediating role of knowledge management and organizational commitment.Information Management,51(8), pp.1031-1042. Gonzalez-Benito, O., Venturini, W.T. and Gonzalez-Benito, J., 2017. CRM technology: implementation project and consulting services as determinants of success.International Journal of Information Technology Decision Making,16(02), pp.421-441. Jain, Y. and Patel, N., 2016. Analysing impact of online CRM practices on companies productivity and customer retention.International Journal for Research in Business, Management and Accounting,2(12), pp.25-35. King, D.M., Dhameeth, G.S. and Kim, J.S., 2017. Modeling Moderating Effects of Customer Lifetime Value (CLV) and Referral Value (CRV) on Customer Service of Frontline Employees for Customer and Organizational Satisfaction: A Comparative Analysis. Peltonen, H., 2015. CRM system implementation supporting the management of customer relationships. Shafique, M.N., Ahmad, N., Abbas, H. and Hussain, A., 2015. The impact of customer relationship management capabilities on organizational performance; moderating role of competition intensity.Arabian Journal of Business and Management Review (Nigerian Chapters),3(3), pp.28-47. Syed, T. and Jain, R., 2017. A STUDY ON DETERMINANTS OF CUSTOMER RETENTION IN BANKING SECTOR.International Education and Research Journal,3(6). Trainor, K.J., Andzulis, J.M., Rapp, A. and Agnihotri, R., 2014. Social media technology usage and customer relationship performance: A capabilities-based examination of social CRM.Journal of Business Research,67(6), pp.1201-1208

Effective Teacher Essays - Pedagogy, Educational Psychology

Effective Teacher An effective teacher is one who runs an effective classroom, and touches the lives of children. An efficient teacher is one who knows what they are doing and does the right thing consistently. To be and effective and efficient teacher you must have three very important characteristics for student success. Positive expectations, extremely good classroom management skills, and know how to design lessons for student mastery. Positive expectations are essential to student success. When the teacher has high expectations, not high standards, the students will perform to your expectations. If you believe that all students are above average and that they all are capable learners, these expectations will transmit to the student, and the student will succeed. If these expectations are apparent toward all students it will benefit both the teacher and the students. Good classroom management is important for student success. For this to happen, the teacher has to be very organized, and consistent in everything. The teacher must maintain control so that instruction and learning can occur. Much of the control that a teacher has over a class is effected by what the teacher does on the first day of school. If you can maintain control during the first week, that is an accurate indicator for how well the students will do for the rest of the year. Designing lessons for student mastery is also very important for student success. To teach for mastery, an effective teacher must do two things, know how to design lessons in which the student can learn, and know how to evaluate the learning to see if the student has mastered the concept. You can learn to be an effective teacher by learning from your mistakes as well as from your mentors and fellow teachers. Every one of us is both a student and a teacher. We are at our best when we teach ourselves what we need to learn.

Hidden curriculum essayEssay Writing Service

Hidden curriculum essayEssay Writing Service Hidden curriculum essay Hidden curriculum essayExplain the â€Å"hidden curriculum† as described in your book. How can this help students? How can it be harmful to students and teachers?The concept of â€Å"a hidden curriculum† was first introduced by Jackson in 1968. The â€Å"hidden curriculum† differs from the official traditional curriculum, which is â€Å"taught through the spoken and written words in the classroom settings of traditional schools† (Eikeland, 2001, p. 145). The â€Å"hidden curriculum† involves various practices that reflect the way the major things in the classroom are organized to improve students’ education. In other words, students do not just get the new information and assess the content provided by teachers, they also â€Å"learn to sit quietly, to memorize and repeat, to believe that questions have one correct answer written in some book, and that helping each other equals cheating† (Eikeland, 2001, p. 145).  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Many teachers place emphasis on the importance of the â€Å"hidden curriculum† in students’ personal development and in â€Å"guiding participation in and interpretation of social conventions† (Harpur, 2004, p. 79). Teachers explain the use of the â€Å"hidden curriculum† as the best way to follow the established social conventions that contribute to the effective communication practices. In school setting, the major social conventions include interactions with teachers and students. In this case, it is necessary to refer to the role of language, gestures and glances. Teachers take into consideration not only the indirect use of spoken language, but also body language, gestures, eye glances, which often have a significant meaning. Researchers state that in college, students are mature and are focused on bringing clarity to their social interactions. Thus, students should apply their intellectual skills to â€Å"analyzing and compreh ending the â€Å"hidden curriculum† (Harpur, 2004, p. 80).  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Moreover, the â€Å"hidden curriculum† helps students to become more independent and self-confident. According to researchers, â€Å"social roles are learnt in the way it is claimed, as are sex roles and attitudes to many other aspects of living†(Kelly, 2009, p. 10). The â€Å"hidden curriculum† affects the established attitudes and values created by teachers in order to be communicated to students in the course of a learning practice. Students effectively use the knowledge provided in classroom settings, based on the values hidden in the arrangements created by teachers in schools. This fact means that those people who are involved in the design of the school curricular are focused on the development of the so-called expressive culture. In some cases, the curriculum is hidden from students, but the values that should be learnt by students are clearly de fined as a part of the planned practice. The â€Å"hidden curriculum† helps students to eliminate the commitment of the acts of racism and gender discrimination. In addition, the â€Å"hidden curriculum† can teach students how to survive in school setting, especially if students have to cheat.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   However, the â€Å"hidden curriculum† can it be harmful to students and teachers. Many teachers consider that some of the values and attitudes that are learnt through the â€Å"hidden curriculum† do not have direct relation to teachers’ practice. They argue that these values can be learnt as a â€Å"by-product of what is planned and of the materials provided† in school setting (Kelly, 2009, p. 10). Researchers believe that the nature of individual experiences, as well as the hidden forms of learning, affects students as well. Students face certain problems when they try to assume responsibility for their acti ons. In some cases, they fail to eliminate some unplanned and uncontrolled practices that can be defined as â€Å"a de-schooling of society† (Kelly, 2009). The â€Å"hidden curriculum† can cause harm to students, especially when their moral sensibilities allow them to cheat without any guilt.Thus, it is necessary to conclude that what is practiced in the classroom stands for the â€Å"hidden curriculum†, and what is preaches in the classroom stands for â€Å"open curriculum†. There is a close link between the â€Å"hidden curriculum† and the curriculum, although the hidden messages cannot be regarded as part of the official and planned activities of students in school setting. The â€Å"hidden curriculum† does not have any clear and systematic planning because students use hidden messages that come from everyday school activities and promote certain values, attitudes, and skills. As a result, the â€Å"hidden curriculum† can be useful for students’ personal development, but, at the same time, it can be harmful to students in terms of morality and ethical behavior.  Ã‚  Ã‚   Explain the following statement: â€Å"Race is not a simple matter of skin color but a socially constructed category.†The statement â€Å"Race is not a simple matter of skin color but a socially constructed category† gives an opportunity to access race as a socially determined category of human identity and human interaction. Race is similar to other categories, such as gender, age and class. The term race has direct relation to the concept of racism, which stands for prejudice, ignorance, or a disease that afflicts some individuals and causes them to discriminate against others just because of the way they look† (Bonilla-Silva, 2006, p. 13). According to researchers, race is a socially constructed category as it is focused on the process of construction of human society. For example, two categories â€Å"Negroes † and â€Å"Indians† were constructed in the 16-th century in order to â€Å"justify the conquest and exploitation of various people† (Bonilla-Silva, 2006, p. 28). As a result, â€Å"Indians† are represented as savages, while Europeans are represented as highly civilized. These facts mean that the category of race was invented to promote the so-called racialization of people in human society. Race as a socially invented category contributes to the development of a certain form of social distinction, similar to the categories of class and gender. Race as a socially constructed category generates â€Å"new forms of human association with definite status differences†(Bonilla-Silva, 2006, p. 28). This process affects human society and leads to the development of the category of race, in which race is characterizes as a â€Å"category of group association and identity† (Bonilla-Silva, 2006, p. 28).Hidden curriculum essay part 2

Estimating the Damping in a Single Degree of Freedom System Lab Report - 1

Estimating the Damping in a Single Degree of Freedom System - Lab Report Example There are a number of sources for damping and in this experiment; we are required to determine their overall effect. The excitation of the system will be provided by a shaker driving the opposite end of the beam from the attached weight. Two different methods will be used to estimate the damping: half-power bandwidth measurement in the frequency domain and a logarithmic decrement in the time-domain. a) Set up the system to use an accelerometer to measure the vibration of the beam near the attached weight while applying a computer-generated forcing signal via the shaker attached to the opposite end of the beam. c) Observe the resonant peak corresponding to mass-on-a-spring type motion, and compare it to what you would expect based on a simple calculation using the mass of the attached weight and the static stiï ¬â‚¬ness of the beam. When a mechanical system is displaced from its position at equilibrium and then released, the restoring force returns it to equilibrium position. This kind of movement is referred to as free vibration. Free vibration results arise from the initial impact energy that keeps changing consistently from potential energy to kinetic energy forms. In a state of free vibration, the mechanical system is said to be vibrating at its natural frequency. However, due to some various causes, dissipation of the mechanical energy occurs during vibration and this effect is referred to as damping. In theory, an un-damped freely vibrating system continues to vibrate after it has started. In this experiment, we shall investigate the effect of damping and the level of damping in the mechanical system. Vibration can basically be classified in a number of ways including: b. Un-damped and damped vibration: In un-damped vibrations, no energy is lost or dissipated as a result of friction during the oscillatory motion. If any energy is lost, the

TEENAGE PREGNANCY Essay Example | Topics and Well Written Essays - 1500 words

TEENAGE PREGNANCY - Essay Example In the past few years, pregnant teenagers have become a twisted fashion statement, a heavily sought-out fad (Moore, 2006). Now, at the beginning of the second decade of this new millennium, teenage pregnancies are increasing at an alarming rate with no decrease in sight due to a lack of knowledge being given to the teenagers. There are three common causes as to why teenagers are becoming pregnant at a shocking rate. Socially, it is ordinary for teenagers to be pressured by their peers to engage in underage sex, resulting in young pregnancies. Teenagers have the mindset that if their friends and classmates are involving themselves in underage sex, then not only should they do the same, but they feel that their actions will be condoned by the commonality of underage sex. Economically, it has been proven that teenagers from lower income neighborhoods or situations of poverty have an increased chance at becoming pregnant due to a lack of information and resources, as well as access to contraceptives (Cherry, 2001). Legally, many teenagers believe that they are old enough than what the age of consent lays down, and that they are old enough to know what they want as possible parents at such a young age. Furthermore, it is quite often that the men that impregnate the girls are unaware of how old they really are , which, regardless of whether or not the girls give permission, goes against the law of age of consent. Teenagers either going through pregnancy or making their rounds as teenage moms face numerous social problems as a result of their poorly calculated sex romps. Due to the demand of infants for their mothers, the majority of teenage moms have no choice but to drop out of school to tend to their baby. Although they do exist, very few schools offer specialized daycare facilities to take care of children while their mothers are in class

Computer Forensics Research Paper Example | Topics and Well Written Essays - 1250 words

Computer Forensics - Research Paper Example Now this is the point where a forensic toxicologist comes onto the scene. â€Å"According to the American Board of Forensic Toxicology (ABFT), Forensic toxicology is interdisciplinary field of study dealing with the effects and reactions of various toxicants and chemicals on the human body† (Bell, 2008). As the name suggests, a forensic scientist works very closely with legal experts and at most of the occasions the forensic scientist himself in a situation where his opinions form the basis of legal process. More than 21 million compounds fit the definition of intoxicant and have the capability to cause damage to the human body (Wecht & Rago, 2006). The history of this field goes back to the earliest times when human formed societies and learned about the use of various chemicals. It was in the 19th century when scientists and chemical experts gained insights about the use of chemicals and in the next century, the world witnessed cases concerned with deaths caused by intoxication more than in the previous recorded history. â€Å"Mary Ann cotton, Belle Sorrenson, Gunness Nannie Doss, Doctor Thomas Neill Cream, John Otto Hoch, Graham Frederick Young and Donald Harvey† (Hayes, 2001) are most of the most famous criminals who took unjust advantage of their knowledge of toxicants by killing people (Bell, 2008). Before the legal experts could catch their crime, they had killed many of their targets. This asked the investigators to understand the dynamics of toxicology and apply it to th e field of forensics. The applications of this field are in three major sub fields that are â€Å"postmortem forensic toxicology, human performance toxicology, and forensic drug testing† (Casarett & Doull, 1975). There are various sources for forensic testing of toxicants in human body. Testing with blood, citreous humor, urine, bile, liver, hair sample, saliva, and others are the most commonly used sources (Hayes,