Saturday, October 12, 2019
Empirical Formula of Magnesium Oxide :: essays research papers
Empirical Formula of Magnesium Oxide Date: Aim: The aim of this experiment was to determine the empirical formula of magnesium oxide. Equipment:  ·Ã‚     Balance  ·Ã‚     Crucible and lid  ·Ã‚     Bunsen burner  ·Ã‚     Magnesium ribbon (0.2g)  ·Ã‚     Steel wool  ·Ã‚     Crucible tongs  ·Ã‚     Pipe clay triangle  ·Ã‚     Tripod Procedure: 1.     Obtain a clean, dry crucible and lid, then heat them for approximately 5 minutes over a Bunsen burner 2.     Clean the surface of a 20 cm strip of magnesium ribbon using steel wool 3.     Coil the magnesium ribbon, so that it fits into the crucible 4.     Weigh crucible and lid on a balance, and record the mass 5.     Place magnesium ribbon into crucible, replace the lid and weigh once more 6.     Heat the crucible and its content with the lid off until the magnesium begins to glow 7.     Replace the lid and heat the crucible strongly 8.     Continue to heat the crucible, occasionally lifting the lid with tongs to provide oxygen for the reaction 9.     When all magnesium has reacted, remove the lid and heat strongly for 5 minutes 10.     Replace crucible lid and allow to cool 11.     Reweigh the crucible with its contents and lid Observations: Once the magnesium was in the crucible and was being heated by the Bunsen burner, it glowed for a brief time. It then caught fire before the lid was placed on top. When it came into contact with the oxygen, the magnesium started glowing extremely bright, and intensely white. The glow became orange after some time. The magnesium ribbon then turned white. Results: Mass of crucible and lid                              29.9 g Mass of crucible, lid and magnesium                         30.1 g Mass of magnesium                                   0.2 g Mass of crucible, lid and magnesium oxide                    30.3 g Mass of magnesium oxide                              0.4 g Mass of oxygen combined with magnesium                     0.2 g Questions: 1. a) The mass of magnesium which reacted was 0.2 grams. b) The mass of oxygen that combined with the magnesium was 0.2 g. 2. What is the empirical formula of magnesium oxide? Mg0.2 g0.224.310.0080.0081=2     O0.2 g0.2160.01250.0081.56 =3 Thus the empirical formula of Magnesium Oxide is Mg O . 3. Why are the crucible and lid heated at the beginning of the experiment before being weighed? The crucible and lid are heated at the beginning of the experiment before being weighed so that any moisture in the crucible is burned away. Moisture is heavy, and thus it can change the results of the experiment, as we only want the weight of magnesium and the magnesium oxide. 4. What are the possible sources of error in this experiment? Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment. The loss of magnesium oxide smoke can also be counted as a possible source of error: if you should lose some of the smoke, there would be a less amount of magnesium oxide than expected at the end of the experiment.
Friday, October 11, 2019
Executive Summary Of Impact Of Siwes On Students
The Students Industrial Work Experience Scheme (SIWES), is a skills development programme initiated by the Industrial Training Fund (ITF), in 1973 to bridge the gap between theory and practice among students of engineering and technology in Institutions of Higher Learning in Nigeria. It provides for on-the-job practical experience for students as they are exposed to work methods and techniques in handling equipment and machinery that may not be available in their Institutions.At inception in 1974, the Scheme started with 784 Students from 11 Institutions and 104 eligible courses. By 2008, 210,390 Students from 219 Institutions participated in the Scheme with over 112 eligible courses.However, the rapid growth and expansion of SIWES, has occurred against the backdrop of successive economic crises which have affected the smooth operation and administration of the Scheme. Most industries in Nigeria today, are operating below installed capacity while others are completely shut down (Manu facturing Association, 2003 – 2006). This has impacted negatively on the Scheme as Institutions of Higher Learning find it increasingly difficult to secure placement for Students in industries where they could acquire the much needed practical experience.Aim of the StudyThe aim of the study was to evaluate the impact of SIWES on Technical Skills Development in the Nigerian economy. This is to enable Institutions of Higher Learning and other Stakeholders assess the performance of their roles in the Scheme.MethodologyIn order to achieve the aim of the Survey, a total of 1,200 questionnaires were administered to SIWES Students, SIWES Graduates and 60 to the Employers of Labour.Similarly, 36 Head of Institutions, Institution based SIWESCoordinators/Directors participated in SSI while 30 Human Resource Managers and 60 Industry based SIWES Supervisors were also interviewed. A total of 18 focus group discussions (FGD) were held with SIWES Graduates and ITF SIWES Schedule Officers equally participated in FGD.The six geo-political zones of the country and the 27 Area Offices of the ITF were the bases for sampling. The fieldwork for this study lasted two weeks in December 2008 across the Six Geo-Political Zones. The field personnel enjoyed cooperation and support of SIWES participating Institutions and their representatives during data collection. A few Researchers did not, however, receive cooperation of Employers of Labour to administer instruments to Students, largely due to either misconceptions or disputes.Lack of uniform academic calendar for all Institutions, including SIWES calendar affected the capacity of Research Teams to administer some Research Instruments.Major FindingsThe findings of the survey include:1. Most Students (75%) described SIWES as very relevant to Technical Skills Development, while SIWES Graduates (92.5%) reported that they acquired new skills during their SIWES attachment.2. Inadequate funding for the smooth management of the Scheme.3. Inadequate/ineffective supervision of Students on attachment by Staff of Institutions, ITF and Employers of Labour, largely due to lack/shortage/inadequate vehicles, supervision allowance and delays in the payment of same to both staff and students.4. Placement of Students in relevant Industries is a major challenge due to the growing number of Institutions, eligible courses and Students involved in SIWES while relevant industries are shutting down5. Employers of Labour have high positive perception of SIWES in imparting skills to students, thus, enhancing their performance.6. There is a general consensus among Heads of Institution and Institution-based Coordinators that SIWES makes the education process complete as it bridges the gap between the theoretical knowledge acquired in Institutions through practical hands on experience in Industry.7. A major factor determining the acceptance of Students for SIWES by Organizations/Establishments is av ailability of vacancy.Recommendations1. The number of Institutions and Students participating in SIWES have been on the increase without corresponding increase in funding of the Scheme. The study recommends that the Federal Ministry of Science and Technology (FMST), Federal Ministry of Labour and Productivity (FMLP), Education Trust Fund (ETF), and Millennium Development Goals (MDGs) of the Presidency be involved as major Stakeholders that will be saddled with the responsibility of formulating policies to guide the operation of the Scheme and advice the Federal Government appropriately particularly, on funding the Scheme.2. SIWES should be properly presented to potential sponsors, such as banks, multinational companies and other corporate institutions for support in creating placement opportunities, training, equipment, facilities, as well as direct funding of SIWES.3. Institutions should be encouraged to create financial autonomy for Institution-based SIWES Units/Dir ectorates.4. Separate SIWES sub-head by the Federal Government.5. Motivate partners from the private sector through granting tax relief for companies that accept Students on SIWES.6. Instruments for the administration of the Scheme should be periodically reviewed to ensure relevance, and uniformity.
Thursday, October 10, 2019
Living Home vs Living Away Home
Have you ever think on living away home? Or you prefer to live at home with your family? A lot of people, mainly students, have this question in mind. But to answer it is better to made a balance between what you will find living away and what you have living at home; but it is a difficult task because you will find a lot of differences and similarities in both situations. One obvious difference is food. Food is a minimal basis to have into consideration in our life.At home, well, you will probably were with your parent's so they know where they can buy the cheaper and better food; whereas, if you live on your own away from home, you don ‘t anyone who could go to buy food at the right place or even, to advise you where to go to buy. In home you can also have your parent's who cook instead of you and they also are the ones paying the food; on the contrary, living away meaner to learn how to cook and to pay your groceries. Other areas of difference between live at home and living away home involves money and rent.When you are at your parent's' house don t have to centered in saving big sums of money because the only things in what you are going to spend your money on is in your yens because you don ‘t have to pay any rent or any kind of expenses: you don ‘t have to pay community expenses, trash service, health insurance†¦ Because these expenses are in charge of your parent's; in comparison, living away on your own you have to pay a rent and all kind of living expenses such as community charges, health insurance, social security expenses, and all of this sort of expenses for which you must to save a big sum of money to pay them.Another important difference is the state of freedom. At home you are always bound to the rules that your parent's established and they, most of the time, are going to pay attention to you trying to know what you are doing, telling you how things must be doing under their rules because you are under the same roof as t hem; therefore, living away from home you can established your own rules and can do mostly anything you want to do.In spite of these differences, these two apparently opposite situations share several important experiences. Living at home and living away from home are alike in their comparability when you arrive after a day working or even studying and need a nap or even to relax yourself seeing the TV, reading, listening to music, gaming†¦ People and meet with your friends to go to the cinema or going shopping. Also, you will have shops around your home that let you buy things you need.Living at home can be compared to living away from home in the possibility of paving a room of your own where you can relax, study or stay with your friends seeing films, playing some game or chatting. There is not such a huge rift between living at home and living away from home, both situations has its good things and its bad things. Probably people think that it is more secured living at home because it is a place that they know and don ‘t want to risk themselves going to a place that can be good or bad for them. But there is no much difference between the two situations.
Communication: The Culture Affect Essay
Communication one of life’s biggest assets yet also one of life’s greatest issues. Everyone uses communication – everyone in every walk of life, in every country, everywhere. There is no way around it. We depend on communication for nearly everything. â€Å"Communication is the vehicle by which meanings are conveyed, identity is composed and reinforced, and feelings are expressed. As we communicate using different cultural habits and meaning systems, both conflict and harmony are possible outcomes of any interaction†(LeBaron, 2003). Proper communication is one of the keys to success. One would think that given its importance, communication would be held in higher regard and more effort would be put forth in communicating correctly. Mary Guffey and Dana Lowey discuss the five key elements of culture in their book, Essentials of Business Communication, to help improve our understanding of cultural communication. Those five elements are as follows: context, individualism, formality, communication style, and time orientation. Guffey and Lowey say that â€Å"context is one the most important cultural dimensions, yet it is among the most difficult to define†. In one idea, context can be considered to be the environment from which one’s perceptions are attained. There are both low-context cultures, like the US and high-context cultures, like Asia. Low-context cultures tend to be more direct, and think everything needs to be explained. They do not mind confrontation or making demands. They rely on facts, data, and logic. They are more relaxed about power and wealth, but do value competence regardless of job or position. They take words at face value. High-context cultures value group decisions and rely on relationships ore than data. They avoid confrontation and emotion in business transactions. They value position and status over competency. They may not take words literally. (Guffey & Loewy, 2010) It is easy to see why context is important to our communication. If these differences were understood or at the very least known about before communication begins, misunderstandings and offenses can be avoided. â€Å"An attitude of independence and freedom from control characterizes individualism†(Guffey & Loewy, 2010). Low-context cultures, such as Americans, generally value individualism, while high-context cultures tend to be more collectivist. Individualism represents independence, self-assertion, initiative, competence, and personal achievement. Collectivism represents a more group-oriented mindset. Their identity is found in the group, rather than themselves as an individual. Then you have some cultures that cannot be characterized as either individual or group oriented primarily. (Guffey & Loewy, 2010) When communicating to these different groups, it is important to highlight the ideals that they value. Formality is another element. Some cultures hold tradition, ceremony, and social rules in high regard, while others do not. Americans, generally informal, can be quite offensive to more formal cultures. For example, Americans are friendly to most and develop friendships easily. We share information and are â€Å"comfortable†with authorities (teachers, bosses, etc. ) in our lives. We also address people by their first names, something that is not done by formal cultures. Titles are heavily used in formal cultures and names are reserved for only close friends and family. The Western, informal, culture is more relaxed about social status and position of power. Formal cultures hold authority figures in very high regard. In Egypt, Turkey, and Japan students stand when their teacher enters the room and bows to them when they pass them on the street. (Samovar, Porter & McDaniel, 2010) So again, when communicating with a group or culture that is different from you, especially communication from an informal culture to a formal culture, it is vital to know the culture and mold your communication appropriately. Communication style is another important element that cultures approach differently. For example, â€Å"to Americans and Germans, words are very important, especially in contracts and negations. People in high-context cultures, on the other hand, place more emphasis on the surrounding context than on the words describing a negotiation†(Guffey & Loewy, 2010). Americans approach contrast as final, Japanese approach contracts as intentional but changing, and Mexicans approach contracts as ideals in a perfect world. Americans are straightforward in communication and are somewhat distrusting of individuals who are not for full disclosure. Americans like to work through negotiations quickly. The Japanese, or high-context culture, tend to drag out negotiations because they have realized others cultures concede over time. They are often quite and meticulous in negotiations. Realizing the differences in communication styles will be of tremendous asset to one’s business dealings. The fifth element that separates cultures is time orientation. Americans view time as an important commodity. They value productivity and efficiency. They see time as money. They, as a general rule, do not keep people waiting for business meetings. For one, that would not be a good business practice and two, that would be exceptionally rude. While this is true for American cultures, there are many other cultures that do not look at time the same way at all. Hispanic or Caribbean cultures have a far more relaxed view of time. They, generally, are not in a hurry. According to Guffey and Lowey, †the perception of time and how it is used are culturally learned†. Having an understanding of how a culture uses their time becomes important as you begin to have dealings with them. Each culture has its view on these different elements; each culture communicates differently, each culture values differently, and so on. It is important to realize these differences and learn to adapt to the culture in which you are currently dealing. Adapting to a particular culture could possibly be there difference in making or breaking a deal. Life, as a whole, is about compromise and balance. Communication is simply another element of compromise. As stated earlier, communication can be one of life’s biggest assets or one of life’s greatest issues. Words and actions must be chosen wisely to communicate effectively.
Wednesday, October 9, 2019
Wal-Marts Business Management Essay Example | Topics and Well Written Essays - 2000 words
Wal-Marts Business Management - Essay Example Other important applications include informing the details of the company to the finance personnel, suppliers and others so that they become aware of company's goals and achievements. Economic Feasibility: It refers to the benefits or outcomes. We are deriving from the product as compared to the total cost we are spending for developing the plan. If the benefits are more or less the same as the older system, then it is not feasible to develop the plan. The development of the new product should greatly enhance the accuracy of the system and cuts short the delay in the processing of the business strategy. The errors can be greatly reduced and at the same time providing great level of security. Hence, we do not need any additional equipment except memory of required capacity. Operational Feasibility: It refers to the feasibility of the product to be operational. Some products may work very well at design and implementation but may fall in the real time environment. It includes the study of additional human resources required and their technical expertise. Technical Feasibility: It refers to whether the product that is available in the market fully supports the present trend. It studies the pros and cons of using particular product for the development and it's feasibility. It also studies the additional training need to be given to the people to make the product work. A qualitative and quantitative research is must in developing an Information system. Qualitative research is more of collecting data, conducting interviews, using documents and to understand and explain social phenomenon. Quantitative research involves is of development of natural sciences to study natural phenomenon. Survey methods, formal methods, econometrics, etc., are some of the examples of quantitative research. Planning Wal-mart generally forays into the international market by establishing a retail market by issuing FDI (Foreign Direct Investment) to the retailers so that the profit from the FDI's would go to the retailers as well. Their plan will be to first energize the FDI lobby and then preempt the FDI lobby in any country they try to establish their retail store. They primarily look for the average annual income of the family in that country, Wal-Mart also looks how much is the retail market and at what percentage it is growing annually. Wal-Mart recently decided to foray into the Indian retail market which has a $250 billion retail market growing at 7.2 % per year. Wal-Mart initially looks for the weak supply chain managed countries for FD investments. John Menzer the CEO and president of Wal-Mart plans as per the data acquired from the countries he personally visits and then decides weather to invest or not. It is not that Wal-Mart doesn't face any challenges, it has to face challenges but s truggles for both business and profit from governments of the respective countries. In any business sector strategic planning is considered to be very important and a thoughtful business plan cannot be overemphasizes because much hinges on it: financial support, management of the available resources like operation and finances, credit from suppliers, promotion and marketing and last but not the least company's goals and achievements. Before
Tuesday, October 8, 2019
Philosophy and Cinema Journal Essay Example | Topics and Well Written Essays - 2000 words
Philosophy and Cinema Journal - Essay Example  In re Bazin’s famous page (p. 13), where he referred to the camera as a non-living agent that recreates the world, he said: â€Å"For the first time an image of the world is formed automatically, without the creative invention of man.†It may be true that the camera does the recreating but to say that the process is without the creative intervention of man is, to this writer, not perfectly accurate. The angles, the lighting, the lenses choice, and the timing of all these elements are products of the cameraman’s creative intervention which results in the shot. Bazin, who elevated photography as the most significant in what he called â€Å"plastic arts,†had only superlative descriptions of its aesthetic and creative powers. Aesthetically, it is superior, according to Bazin, because of its ability to present reality in its most naked condition. Unlike other forms of art, nothing comes between the original subject and the cold lens of the camera. What the camera does is to strip the object of all contextual non-necessities attached to it by time, place and space and lay it bare to the viewer, an experience that is almost impossible in real life. And to Bazin, photography â€Å"can surpass art in creative power†which surprisingly implies despite his extolling photography, that he did not classify it as art.  Photography is more creative because there is no need for a meticulous combination of tricks to create an object of hallucination, like what surrealist do, but it is a hallucination and at the same time, also a fact.
Monday, October 7, 2019
Testing the use of the checklist in the operation room Essay
Testing the use of the checklist in the operation room - Essay Example This study evaluated the use of the WHO Surgical Safety Checklist, that impact of operating room briefings on coordination of care. Data were prospectively collected in the cesarean section OR with C’ section patients and the outcome of eleven cases of patients undergoing this operation was gathered and analyzed after direct observation of the OR checklist was applied . Findings suggested that in the general operation room, the checklist was used. In contrast, in the operation room of the labor department,the checklist tool was not used . To increase the probability of achieving patient safety and minimal errors when implementing the use of checklist tool, such as World Health Organization’s Surgical Safety Checklist, the integration between OR members of the different professions and teamwork must be enhanced. Key words: checklist, WHO surgical safety checklist. . Introduction and statement of the problem The nursing leadership needed to evaluate the possibility of edu cating all the healthcare professionals on the use of a safety checklist and to gain an increased awareness of the challenges and solutions connect with such an effort. The obstetric patient safety CNS at Johns Hopkins Hospital wanted to study the reasons why the OR checklist was not being used. ... It also helps to improve communication and guarantee safe and standardized procedure, by this means minimizing error. Overcoming barrier to implementation of the checklist in the OR was growing. Lack of using the checklist therefore led to the increase of the above mentioned defects. The organization started testing the checklist over a year ago and they provided information for all caregivers teams regarding their attitudes toward the use of a surgical checklist. Still not all team members related that they were aware of the checklist and its purpose and they were not using the resource. The use of the checklist did not become part of the culture of the unit. Some team members were / and are resistant to checklists. Support for use of apre-operative checklist to increase patient safety has been described. In a study by Nilsson, Lindbergt, Gupta &Vegfros (2010), staff awareness of the benefit of the use of a checklist and attitudes towards the use of a checklist improved after one ye ar. Assessment Organizational need According to JHU nursing leadership, there was a need for all OB and OR team members know each other as the research supported that this would make people more willing to speak up if they perceived a certain problem during the case. The team members also needed to have a shared mental model regarding the scope of the case and the plan of care for the patient after the case. It was viewed that most nurses did not make good use of the checklist. The use of the checklist also goes a long way in helping the nurses remember to cover all the basics. This is because not everyone has the ability to memorize all that is required. The operating rooms are highly procedural environments that require surgical teams to be very meticulous (Hayes, 2012). Clinical
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