Linear Regression of Job Satisfaction

Linear regression plots a line between our data that minimizes the least squared difference between the data points and the regression line (Wooldridge 2009). This model allows us to generate estimates of the magnitude of impact of a one-unit increase in our independent variable on our dependent variable on average in the population of interest (Moore, McCabe Craig, 2009).Advertising We will write a custom essay sample on Linear Regression of Job Satisfaction specifically for you for only $16.05 $11/page Learn More It makes a few key assumptions, mostly that the individuals—and specifically, the residuals, or the distances between these data points and the line—are independently and identically distributed (Wooldridge 2009). If these assumptions are met, this approach is the best linear unbiased estimator. This generalized linear model is the basis for other statistical procedures, like ANOVA and t-tests (Trochim 2006a). We plan to analyze our data using this method of analysis to assess three research questions: how self-rated satisfaction on intrinsic, extrinsic, and overall job satisfaction scales, respectively, predicts satisfaction with employer benefits. Specifically, these variables are all continuous variables that measure how people rank their satisfaction on a range from 1 to 7. Association of Benefits and Intrinsic Job Satisfaction In order to assess the extent to which intrinsic job satisfaction predicts satisfaction with benefits, we can fit the following regression line: where benefits is our dependent variable (or â€Å"y†), represents the constant, or the intercept; represents the coefficient associated with the effect of a unit increase in the intrinsic score, and is the error term for each individual in the regression. Our results suggest that there is a small, positive, non-significant relationship between intrinsic satisfaction and benefits. Specifically, our intercept is 5.199 and the slop e of the line, or the one unit difference in the intrinsic score, is 0.033. In other words, a score of 0 on the intrinsic scale would be associated with a 5.2 (though this is out of the range of our data, since the scale does not go to 0), and a one unit increase in the intrinsic score would raise the benefits score, on average, by 0.032 points. While the intercept is significantly different from 0 (p0.001), the intrinsic variable is not significantly different than 0 (p=0.49). The correlation coefficient of this model, or the extent of the variation in the benefits outcome explained by theis model, is 0.016, which is quite small.Advertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Association of Benefits and Extrinsic Job Benefits In order to assess the extent to which intrinsic job satisfaction predicts satisfaction with benefits, we can fit the following regression line: where benefits is ou r dependent variable (or â€Å"y†), represents the constant, or the intercept; represents the coefficient associated with the effect of a unit increase in the extrinsic score, and is the error term for each individual in the regression. Our results suggest that there is a small, negative, significant relationship between extrinsic satisfaction and benefits. Specifically, our intercept is 6.35 and the slope of the line, or the one unit difference in the intrinsic score, is -0.19. In other words, a score of 0 on the extrinsic scale would be associated with a 6.4 (though this is out of the range of our data, since the scale does not go to 0), and a one unit increase in the extrinsic score would lower the benefits score, on average, by -0.19 points. The intercept and extrinsic score are both significantly different from 0 (p0.001. The correlation coefficient of this model, or the extent of the variation in the benefits outcome explained by this model, is 0.42, which is quite larg e. Association of Benefits and Overall Job Benefits In order to assess the extent to which overall job satisfaction predicts satisfaction with benefits, we can fit the following regression line: where benefits is our dependent variable (or â€Å"y†), represents the constant, or the intercept; represents the coefficient associated with the effect of a unit increase in the overall score, and is the error term for each individual in the regression. Our results suggest that there is a small, positive, non-significant relationship between overall satisfaction and benefits. Specifically, our intercept is 5.73 and the slope of the line, or the one unit difference in the overall score, is -0.13. In other words, a score of 0 on the overall scale would be associated with a 5.7 (though this is out of the range of our data, since the scale does not go to 0), and a one unit increase in the overall score would lower the benefits score, on average, by -0.13 points. While the intercept is si gnificantly different from 0 (p0.001), the overall variable is not significantly different than 0 (p=0.18).Advertising We will write a custom essay sample on Linear Regression of Job Satisfaction specifically for you for only $16.05 $11/page Learn More The correlation coefficient of this model, or the extent of the variation in the benefits outcome explained by this model, is 0.06, which is quite small. Comparing Results The results were markedly different with respect to the direction and magnitude of the effect of the satisfaction scales. For example, intrinsic had a very small, positive effect, though it was not significant, while the other two scales had a negative relationship. It might be that the extrinsic perceptions of satisfaction are inversely related with benefits—for someone who really likes their work, benefits matter less. However, for someone’s instrinsic satisfaction, benefits are positively associated—the intrinsic ly happier with the job, the happier with the benefits. However, it could also be that the direction of the intrinsic variable is due to chance. It wasn’t significantly different from 0 and could be a function of small sample size. The extrinsic regression produced a very high correlation coefficient, which further makes the point that its association with benefits satisfaction is strong. As mentioned earlier, it could be that extrinsic satisfaction and benefits are strongly correlated in a way that other factors are not necessary for explaining their effects. References Moore, D.S., McCabe G.P., Craig, B.A. (2009). Introductionto the practice of statistics.6th Ed.New York : W.H. Freeman. Trochim, W.R. (2006a). Research Methods Knowledge Base.  http://www.socialresearchmethods.net/kb/dummyvar.php Trochim, W.R. (2006b). Research Methods Knowledge Base.  http://www.socialresearchmethods.net/kb/genlin.phpAdvertising Looking for essay on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Wooldridge, J.M. (2009). Introductory Econometrics. 4th Ed. Mason, OH: South-Western Cengage. This essay on Linear Regression of Job Satisfaction was written and submitted by user Carter B. to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Free Essays on The Foundation Of Art

The Foundation of Art The Ultimate Expression Before the portrayal of the human body can be critiqued, you must understand the artist's culture. As man evolved over centuries, his views of the body also transformed. Our tour definitely showed the drastic changes in different cultures' art. Each culture and era presents very distinct characteristics. Through time and experimentation, we have expressed our views of the human body clearly with our art. Egyptians were the first people to make a large impact on the world of art. Egyptians needed art for their religious beliefs more than decoration or self-gratification. The most important aspect of Egyptian life is the ka, the part of the human spirit that lives on after death. The ka needed a physical place to occupy or it would disappear. Most of the important men of Egypt paid to have their body carved out of stone. That was were the spirit would live after the man dies. They used stone because it was the strongest material they could find. Longevity was very important. The bodies are always idealized and clothed. Figures are very rigid, close-fisted, and are built on a vertical axis to show that the person is grand or intimidating. Most of the figures were seen in the same: profile of the legs, frontal view of the torso, and profile of the head. Like most civilizations, Egyptians put a lot of faith in gods. The sky god Horus, a bird, is found in a great amount of Egyptian art. Little recognition was ever given to the artists. The emphasis was on the patron. Early Greek art was greatly influenced by the Egyptians. Geography permitted both cultures to exchange their talents. The beginning of Greek art is marked by the Geometric phase. The most common art during the Geometric phase was vase painting. After the vase was formed but before it was painted, the artist applied a slip (dark pigment) to outside. Then the vase was fired and the artist would incise his decorations into the... Free Essays on The Foundation Of Art Free Essays on The Foundation Of Art The Foundation of Art The Ultimate Expression Before the portrayal of the human body can be critiqued, you must understand the artist's culture. As man evolved over centuries, his views of the body also transformed. Our tour definitely showed the drastic changes in different cultures' art. Each culture and era presents very distinct characteristics. Through time and experimentation, we have expressed our views of the human body clearly with our art. Egyptians were the first people to make a large impact on the world of art. Egyptians needed art for their religious beliefs more than decoration or self-gratification. The most important aspect of Egyptian life is the ka, the part of the human spirit that lives on after death. The ka needed a physical place to occupy or it would disappear. Most of the important men of Egypt paid to have their body carved out of stone. That was were the spirit would live after the man dies. They used stone because it was the strongest material they could find. Longevity was very important. The bodies are always idealized and clothed. Figures are very rigid, close-fisted, and are built on a vertical axis to show that the person is grand or intimidating. Most of the figures were seen in the same: profile of the legs, frontal view of the torso, and profile of the head. Like most civilizations, Egyptians put a lot of faith in gods. The sky god Horus, a bird, is found in a great amount of Egyptian art. Little recognition was ever given to the artists. The emphasis was on the patron. Early Greek art was greatly influenced by the Egyptians. Geography permitted both cultures to exchange their talents. The beginning of Greek art is marked by the Geometric phase. The most common art during the Geometric phase was vase painting. After the vase was formed but before it was painted, the artist applied a slip (dark pigment) to outside. Then the vase was fired and the artist would incise his decorations into the...

Advanced Practicing Nursing and Approaches to Measuring the Performanc Term Paper

Advanced Practicing Nursing and Approaches to Measuring the Performance of APNs Advanced Practicing Nursing Advanced Practicing Nursing Introduction Advance Practice Nurses (APNs) are obliged to perform various activities within a health institution after having completed advance training. APNs include nurse practitioners and nurse specialists. Other nurses who are under APNs include mid-wives and anesthetists. All of the APNs nurses are entitled to offer direct patient care. This means that they have the obligation of providing education and consultation to patients. They are also required to offer clinical leadership and in some cases conduct research in their respective areas of operations. This paper provides information that establishes the value of APNs in the medical fraternity. Reasons for measuring performance of APNs One of the main significant reasons for measuring performance of APNs is because there have been change in response to various circumstances and activities entitled to be performed by these nurses (Brook & Rushforth, 2011). These changes have occurred because of advancement in core skills, scopes of practice and professional boundaries associated with APNs (Brook & Rushforth, 2011). The other main reason for measuring performance of APNs is that there is a growing consensus that many of the APNs are embracing other roles and obligations like management and leadership (Brook & Rushforth, 2011). This means that in order to make sure that they can be able to carryout these roles within the recommended and outlined ways, there is a need to measure their performance. Another significant reason for measuring the performance of APNs is that they are referred to be distinct in the medical fraternity because of their hybrid and quasi-medical practice (Brook & Rushforth, 2011). This means tha t APNs are obliged to carryout various crucial and autonomous medical operations. In order to be able to perform all these demanding activities there is need to measure their performance with the aim and primary purpose being public protection (Brook & Rushforth, 2011). Approaches to measuring performance of APNs Kleinpell (2003) indicates that there is a need for measuring the outcome of APNs. In order to measure the performance of APNs in an effectively way, Kleinpell (2003) provides the best approaches that ought to be employed. Some of these approaches include physiological. On physiological approach, some of the recommended area to measure includes heart rate and weight (Kleinpell, 2003). The other approach is psychosocial. Areas that ought to be given the first priority in this approach include attitude and mood. Moreover, there is also the need to consider behavioral approach (Kleinpell, 2003). This entails measuring compliance and motivational of APNs. Other approaches include functional where activities of daily life can be measured and knowledge where the medical knowhow can also be measured (Kleinpell, 2003). Establishing the Value of Advanced Practice Nursing APN offer significant contribution in the medical fraternity through conducting various roles that in most cases require special attention and extensive medical practice knowledge. Some of the established value and role of APN include providing response to the increased medicals specialization (Furlong & Smith, 2005). APNs also assist in providing response to the inaccessibility of medical care. Moreover, APNs are expert in clinical practice and therefore, they can be able to enact various obligations in health institutions. They are also employed with ethical decision-making skills that tend to be of significant importance in the medical fraternity (Furlong & Smith, 2005). Conclusion The above information indicates that APNs are of significant importance in health institutions as they contribute much in giving the recommended help to patients. Moreover, apart from taking care of the patients, APNs are equipped with other skills as explained above that assists them in providing help to a wide scope of areas. This means APNs can serve the patients, other staff members in health institutions and the public. Reference Brook, S., & Rushforth, H. (2011). Why is the regulation of advanced practice essential?. British Journal Of Nursing (BJN), 20(16), 996-1000. https://ehis.ebscohost.com/eds/pdfviewer/pdfviewer?vid=2&hid=116&sid=87df2816-02fe-4803-bfc4-d7d964729bdc%40sessionmgr13 Furlong, E., & Smith, R. (2005). Advanced nursing practice: policy, education and role development. Journal Of Clinical Nursing, 14(9), 1059-1066. https://ehis.ebscohost.com/eds/pdfviewer/pdfviewer?vid=5&hid=120&sid=87df2816-02fe-4803-bfc4-d7d964729bdc%40sessionmgr13. Kleinpell, R. M. (2003). Measuring Advanced Practice Nursing Outcomes: Strategies and Resources. Critical Care Nurse, 236-10. https://ehis.ebscohost.com/eds/pdfviewer/pdfviewer?vid=4&hid=5&sid=87df2816-02fe-4803-bfc4-d7d964729bdc%40sessionmgr13

Lost Treasures Essay Example | Topics and Well Written Essays - 1250 words

Lost Treasures - Essay Example The Mayan civilization is another group who would have been a great influence to more modern societies had their literature been available to us today. Mayans are believed to have been an outstanding group of people in Central America during the Spanish era of conquests. Despite having no skill or knowledge of the wheel or metal tools, they were able to build temples and pyramids. Artifacts also reveal a system of writing, mathematics and astrology which can be considered advanced for the Mayans during that time. The PopulVuh is a sample of Mayan literature. It is a book believed to have been used by the Mayans to answer questions regarding creation and the earth. Unfortunately, it is only one of three Mayan books that is believed to exist and survive the test of time. Because of this, insight on the Mayan’s systems are hard to understand. Before the invention of the dawn of printing, literary pieces were handwritten. Ancient studies reveal that the early men used to depict th eir lives on cave walls, rocks or leaves. As such, these works of our ancestors risk being damaged or lost due to natural or man-made disasters. Other reasons for the loss may also be theft and the author’s own doing. One example of this is the destruction of the library in Alexandria where it is believed, thousands upon thousands of ancient writings were destroyed. The city in Egypt was founded by Alexander the Great while the Museum or Royal Library of Alexandria was founded by Alexander’s successor, Ptolomy II Soter in 283 BC. (Chesser)... Because of this, insight on the Mayan’s systems are hard to understand. Before the invention of the dawn of printing, literary pieces were handwritten. Ancient studies reveal that the early men used to depict their lives on cave walls, rocks or leaves. As such, these works of our ancestors risk being damaged or lost due to natural or man-made disasters. Other reasons for the loss may also be theft and the author’s own doing. One example of this is the destruction of the library in Alexandria where it is believed, thousands upon thousands of ancient writings were destroyed. The city in Egypt was founded by Alexander the Great while the Museum or Royal Library of Alexandria was founded by Alexander’s successor, Ptolomy II Soter in 283 BC. (Chesser) It is believed that the Royal Library of Alexandria contained literature from Assyria, Greece, Persia, Egypt, India and other places (Chesser) and so there is great disappointment and regret as to its destruction. Until today, unfortunately, there are just speculations based on existing literary works that refer to the library and the reason why it was destroyed. Historians refer to a few incidents in ancient times that may have caused the loss of literary work in Alexandria. One of these was a fire during the reign of Julius Ceasar. It is said that Ceasar had ordered a fire on the enemy Egyptian fleet at Alexandria’s harbor. Sadly, the part of the city where the Library was located accidentally got caught in the flames and burned down. Another reason was supposedly the conversion of the Library into a Christian Church during Theophilus’ reign of Alexandria. Moslem Caliph Omar was also blamed for the destruction of the Library when the Moslems conquered Alexandria in 640

The Oppressive Legislature and the Actions of the British Essay

The Oppressive Legislature and the Actions of the British - Essay Example Many members of the clergy were torn as to which side they should choose. In some parts of the country, religion flourished, under the banner that God with the â€Å"Patriots† side. John Butler, a writer for the Department of the Interior, discussed that other churches and denominations suffered losses in attendance and, like the Anglicans, had to begin shutting their doors.1 The Quakers were by nature pacifists. They were opposed to any kind of acts of violent warfare. However, they entirely supported the colonists when they boycotted British goods. To the Quakers, this was an acceptable form of non-violent, peaceful resistance. Some Quakers were accused of being loyalists but generally, they considered themselves to not be a part of the revolution. Minorities at the time faced difficult challenges, as well. African American slaves found themselves on both sides of the revolutionary war. Many fought on the side of the â€Å"Loyalists.† However, the reasons were most likely based on the fact that the British offered to free those slaves that abandoned their â€Å"Patriot† masters. Native Americans were, also, caught in a difficult position. The Native Americans were already focused on trying to save their homeland; they hardly wanted to be caught in between the British and the Americans. They aimed to remain uninvolved in the warfare. However, eventually, the tribes were forced to make the choice. An article, in association The National Endowment of the Arts, explained that this ultimately ended with different tribes on different sides of a war that was not  theirs.

Article Rebutal Essay Example for Free

Article Rebutal Essay The flu shot. Should you or shouldn’t you get one? That is a very common question to ask as flu season quickly approaches. The Mayo Clinic offers an article on their website stating that the best way to avoid the flu is primarily by means of vaccination. Does this mean one cannot avoid the flu if they don’t receive the immunization? What happens to the people who cannot afford the shot, or those who cannot access the places to receive one? Is one to be plagued by sickness if they were to go against injecting the inoculation? While the Mayo clinic itself is a reputable hospital and research facility, the article, â€Å"Flu shot: Your best bet for avoiding influenza† (Mayo 2012) offered no evidence or support for the claim. There was support for avoiding getting the flu, but no proof that the shot itself would offer such protection. After further investigation, there were numerous studies repudiating the claims that are made regarding the efficacy of the flu shot. One such study (which was actually pro-vaccination) stated that the shot only provided moderate protection and was lacking in evidence in the 65 and up age range (Lancet). In another finding, namely the leaflet that comes inside the drugs packaging, the insert for FLULAVAL states â€Å"there have been no controlled trials adequately demonstrating a decrease in influenza disease after vaccination with FLULAVAL†. Then why take it? While the side effects of the flu shot can be mild such as soreness at the injection site or aching muscles, they can also be as severe as an allergic reaction causing, guess what, flu like symptoms. Who wants that? Plus there is the chance that the vaccines don’t match the viruses circulating (Mayo). Now wait a minute, somebody is predicting the upcoming viruses and then making the immunization? How does that work? Are these same people consulting a crystal ball or palm reading the other doctors and scientists by any chance? While it may be medically necessary for a person to receive an influenza vaccination while in a hospital setting or nursing home, the bottom line is sick people get sick while healthy people do not. To avoid the flu this season, eat well, exercise regularly, manage stress and take some vitamins. Keep your hands clean by washing them regularly and avoid touching your eyes, nose and mouth whenever possible but especially if the hands are not clean. Prevention is still the best medicine and as Thomas Edison so fabulously quantified, â€Å"The doctor of the future will give no medicine, but will interest her or his patients in the care of the human frame, in a proper diet, and in the cause and prevention of disease†. References (Sept. 2012) Mayo Clinic Staff. Flu shot: Your best bet for avoiding influenza retrieved online from: http://www.mayoclinic.com/health/flu-shots/ID00017 (Jan 2012). The Lancet Infectious Diseases, Volume 12, Issue 1, Pgs 36 44, retrieved online from: http://www.naturalnews.com/033998_influenza_vaccines_effectiveness.html (Oct 2011). Adams, M. Natural News, retrieved online from: http://www.naturalnews.com/033998_influenza_vaccines_effectiveness.html

Rosalind Franklin :: essays research papers

Rosalind Franklin Rosalind Franklin lived during an exciting and turbulent era both socially and scientifically. Upon passing the admission examination for Cambridge University in 1938, at fifteen, Franklin was was informed by her affluent family that she would not recieve financial support. Franklin ¡Ã‚ ¯s father disapproved of women receiving college educations, however, both Franklin ¡Ã‚ ¯s aunt and mother supported her quest for education. Eventually, her father gave in and agreed to pay her tuition. Franklin would later prove to be worth her education. As Rosalind Franklin was pursuing her degree World War II raged. She focused her research on coal, the most efficient use of energy resources. Five papers on the subject were published before Franklin ¡Ã‚ ¯s 26th birthday. Further, Franklin had given up her fellowship to become a physical chemist at the British Coal Utilization Research Association at age 22. She was indeed an efficient and driven researcher. Franklin utilized the X-ray diffraction techniques (that she has become most famous for) while working in a Paris laboratory between 1947 and 1950, with crystallographer Jacques Mering. X-ray crystallography helped determined the three dimensional structure of DNA when Franklin returned to England. She became the first person to find the molecule ¡Ã‚ ¯s sugar-phosphate backbone while working with a team of scientists at King ¡Ã‚ ¯s College in London. Unfortunately, leadership misunderstandings and personality conflicts depreciated Franklin ¡Ã‚ ¯s effectivness in the laboratory. Maurice Wilkins, the laboratory ¡Ã‚ ¯s second in command, returned from a vacation expecting Franklin to work under him. Franklin came to the laboratory with the understanding that she would be researching alone. While Franklin was direct and decisive, Wilkins tended to be alluding and passive-aggressive. As Franklin made further advances in DNA research, Wilkins secretly shared her findings with the famous duo of Watson and Crick, who were then working at Cambridge. Franklin ¡Ã‚ ¯s discoveries fueled their research machine, allowing them to advance beyond others in the field. T hey would eventually publish on DNA structure in 1953. Due to discriminatory procedures at King ¡Ã‚ ¯s College, Franklin eventually left to become the lead researcher at London ¡Ã‚ ¯s Birbeck College--upon agreeing not to work on DNA. She furthered her studies in coal and made significant advances in virology. Franklin died in 1958 of ovarian cancer. She lived 37 monumentally significant years. After researching Rosalind Franklin ¡Ã‚ ¯s scientific career, I truly believe that she was a pioneer rather than a follower. Her early coal work is still referred to today; she helped launch the fields of high-strength carbon fibers; and was an integral part of early structural virology.

Beer’s Law Lab Report Essay

Abstract: The Beer’s law lab was conducted to determine the optimal wavelength of Co(NO3)2 ·6H2O with the use of spectrometry. The results determined that the optimal wavelength to study the absorbance of this salt was 500nm. It also demonstrated how transmittance of light and absorbance of light are inversely proportional because absorbance is calculated by multiplying transmittance by a negative log. Introduction: When one is studying chemicals, there are many important factors of significance. The color of a chemical is a useful tool in its study. The light one sees produced by a chemical is the result of both reflection and absorbance of wavelengths. The wavelengths that are absorbed by a chemical are not visualized. The wavelengths that are reflected back are the colors that one sees. When chemicals are diluted in water, their colors also become diluted. As the chemical is diluted, the molecules spread apart. The more dilute the solution, the further apart the molecules. As the molecules spread, the color that is reflected becomes less intense because some of the wavelengths are able to pass through the solution without encountering any of the solute. The more wavelengths that are able to pass through a solution without encountering any of the solute, the greater the transmittance. The transmittance can be mathematically calculated by dividing the amount of light that exited the solution (IT) by the amount of original intensity (IO). That value is then multiplied by 100 to give the percent transmittance (%T) Beer’s Law is used to relate and compares the amount of light that has passed through something to the substances it has passed through. The Law is represented by A=abc. â€Å"A† is the absorbance of a solution. The â€Å"a† represents the absorption constant of the solution being tested. The â€Å"b† represents the thickness of the solution in centimeters, and â€Å"c† represents the solution’s molarity or concentration. The â€Å"A† can be calculated by using the negative log of the transmittance (T).   The lab experiment conducted used the salt Co(NO3)2 ·6H2O. The Co(NO3)2 ·6H2O  was diluted in distilled water to four different molarities. The most concentrated solution was used to determine the optimal wavelength to study the salt by measuring the transmittance of the Co(NO3)2 ·6H2O with twenty different wavelengths of light. Once the optimal wavelength was concluded, the transmittance of the less concentrated Co(NO3)2 ·6H2O solutions was also measured. The measurements of the less concentrated solutions was to determine the absorbance constant, â€Å"a†. Finally, the transmittance of an unknown concentration of Co(NO3)2 ·6H2O solution was measured and molarity was determined based on the absorbance constant determined earlier in the experiment. Procedure: A test tube was prepared with 0.1 M solution of Co(NO3)2 ·6H2O in 10mL of distilled water. Half of the .1M solution, 5mL, was drawn up into a pipette and put into another test tube with 5mL of deionized water to make a 0.05 M solution. Half of the 0.05 M solution, 5mL was drawn into a pipette and put into a test tube with 5mL of deionized water to make 0.025 M solution. Half of the 0.025 M solution, 5mL, was drawn into a pipette and put into a test tube with 5mL of deionized water to make 0.0125 M solution. A test tube of 10mL of deionized water was also prepared. The bubbles on all test tubes were removed by tapping on the outside of the test tube. The outside of the tubes were dried off and any fingerprints were removed with paper towels and placed into a test tube rack. An absorbance spectrometer was zeroed by measuring the transmittance at 400nm with no test tubes in the spectrometer. The spectrometer was then calibrated to 100 percent transmittance with the test tube of deionized water. The deionized water was removed from the spectrometer and the 0.1 M solution was put inside the spectrometer. The transmittance of the solution was recorded and the solution was removed. The wavelength on the spectrometer was changed to 410nm and the deionized water was placed back into the spectrometer and the transmittance was calibrated to 100 percent. The deionized water was replaced with 0.1 M solution and the transmittance was recorded. This process was repeated twenty times with the wavelength increasing by 10nm consecutively until the last wavelength, 600nm, was  measured. It was necessary to calibrate the spectrometer between each change in wavelength. Every change in nanometers had to be measured and calibrated at 100 percent with the control of deionized water. This maintained accuracy when the transmittance of Co(NO3)2 ·6H2O solutions measured. Based on the data gathered, the optimal wavelength was determined and the spectrometer was set to that wavelength. The transmittance was set to 100 with the deionized water. The 0.1 M solution replaced the deionized water in the spectrometer chamber and the transmittance was recorded. This process was repeated with 0.05 M, 0.025 M, and 0.0125 M solutions and the transmittance was calibrated to 100 between each solution with the deionized water. Finally, a Co(NO3)2 ·6H2O solution with an unknown molarity was provided (unknown â€Å"B†). The wavelength of the spectrometer was not changed. The deionized water was placed in the chamber and calibrated to 100 percent transmittance. The deionized water was removed and replaced with a test tube containing unknown â€Å"B†. The transmittance was recorded to determine what the molarity was. Data: After the solutions had been completed, the transmittance was measured at 10nm intervals from 400nm to 600nm. The measurements were determine the wavelength to best study Co(NO3)2 ·6H2O. Higher transmittance demonstrated less absorption of the wavelength and lower transmittance demonstrated higher absorption of the wavelength. Discussion: Beer’s Law is a law that demonstrates that the absorbance of light at a certain wavelength is directly proportional to the concentration or molarity of a solution. This was apparent with the naked eye. When making the solutions, 0.291 moles of was added to a test tube with 10mL of deionized water to make a 0.1 M solution. By taking 5mL out of the solution and mixing it with 5mL of deionized water, the number of moles was halved which made the second solution a 0.05 M solution. When the process had been repeated, it was apparent that the solutions had been diluted based on the color of the solutions in the test tubes. The 0.1 M solution was absorbing more light and was a deep rose color. As the solutions became more dilute, the concentration of the visible color diminished as less light was absorbed to a very pale translucent pink in the 0.0125 M solution. For the first part of the lab, the wavelengths 400-600nm were used. These wavelengths were used to determine the optimal wavelength when the most light was absorbed by the solution. It was important to calibrate the transmittance to 100% on the spectrometer with the deionized water because there were no solutes to absorb light. The spectrometer was then able to use that calibration to determine how much of the light was absorbed by the solution containing Co(NO3)2 ·6H2O by comparing the difference in how much light was absorbed by the detectors in the spectrometer. The spectrometer than calculated the percent transmittance (%T) and displayed the data in a percent. As was shown above in table 1 and graph 1, the %T started high and ended high with percentages over 90. The higher %T demonstrate less light was absorbed by the solution and therefore not the wavelength of light that is absorbed by Co(NO3)2 ·6H2O. Toward the middle of the data, 500nm and 510nm, the %T became substantially lower. This demonstrates that Co(NO3)2 ·6H2O absorbs wavelengths about 500nm. In the second part of the lab, the different molarity, or concentrations, of solution were measured for %T with a 500nm wavelength. The absorbance was calculated by using the negative log of T. This was done because T and A are inversely proportional. This was demonstrated in table 2 and table 3. These tables confirmed that as T decreases, A increases. The third part of the experiment used the point slope formula to determine a molarity based on an absorbance. The absorbance of light was dependent on the concentration of solute. The variables â€Å"A† and â€Å"y† are both dependent variables and were comparable to one another. The variable â€Å"x† and â€Å"c† were the independent variables. The variable â€Å"a† was the absorption constant and â€Å"b† was the thickness of the solution. In this case, â€Å"b† was equal to 1 cm. Graphs 2 and 3 demonstrated the plotted points and from that, excel calculated a trend line based on the point-slope formula. Graph 3 demonstrated how the estimated molarity of unknown â€Å"B†, based on the point-slope formula, fits the trend line. Conclusion: Beer’s Law was studied in this lab. The goals of this were to determine optimal wavelength absorption by Co(NO3)2 ·6H2O and determine transmittance and absorption from the data collected. The optimal wavelength absorption for Co(NO3)2 ·6H2O occurred at 500nm. The data also showed that while the transmittance and absorbance were indirectly proportional from one another, both variables were dependent on the concentration of the solution. Once the data had been collected and understood, an unknown concentration of solution was tested for transmittance. Based on the trend line formed from other concentrations of Co(NO3)2 ·6H2O solutions, the molarity was easily calculated to be 0.048. Possible errors that may have occurred during this lab have to do with calibration of the spectrometer. The transmittance values changed second to second so if the timing was not perfect in measuring the samples, the transmittance would have been erroneous. The transmittances would have been too high (based on experimentation) so the absorbance rates would have been too low. This in turn would have caused the absorbance constant to be too low. If the absorbance constant was too low, the concentration of unknown â€Å"B† would have been calculated too high.

Chester Company Essay

A unique and interesting problem arose when one company, a monopoly within the business-to-business (B2B) sensor market, split into six companies with identical products and equal footing within the market. As Director of Finance for Chester Company, one of the newly formed entities, it is important for me to identify a strategy that will enable the company to remain viable and be successful in the future. An in-depth analysis of the industry situation report provided good metrics to project future customer desires and total market potential. In order to be successful, the strategy that the management team develops must work within the identified parameters while attempting to predict how the other five companies in the B2B sensor market will proceed. There are only two segments of the B2B sensor market: low technology and high technology. The only product Chester Company offers currently fulfills the needs of both markets but this will change as the newly formed entities revise and develop products to meet customer needs. The high tech segment is appealing but will require continual investment in research and development to maintain the standards that customers expect. It will be easier to meet the needs of the customers within the low tech segment but there will likely be more competition for market share. 1. The strategy that I would like to see the management of Chester Company adopt over the next five years is that of â€Å"niche cost leader† (Capsim Management Simulations, 2012) for the low technology segment of the B2B sensor market and to obtain thirty-five percent of that market. This will be achieved by appealing to customers’ sense of thrift. To cut prices below the competition, management should retain the current product and not invest much in research and development. Production costs must also be greatly reduced. To do this, an early investment in automation is necessary as it will reduce labor expenses in future years which will increase the margin and profitability of the company. This investment will be financed through the issuance of stock and long term bonds. I also plan to provide the marketing department with a very generous budget in the first couple of years to aggressively target the market and increase the awareness and accessibility of the product early on. Short term borrowing will be necessary to finance operations and provide a cash cushion to prevent the need for an emergency loan. 2. There is a great chance for Chester Company to earn good profits within the low tech segment over the next five years. Although the price of the product must be kept to a minimum this will be offset by decreasing costs which increases the contribution margin. Also, there is greater demand for products in the low technology segment of the B2B sensor market which is expected to increase approximately ten percent each year. However, Chester Company shareholders may realize a loss in the first year due to the high marketing budget and cost of labor because the automation rating is low. Unfortunately, some sacrifices will need to be made early on to realize greater profits in the long term. 3. The product that is most important to the success of Chester Company is Cake; the product currently being produced. During the first year of business, this product will have the ability to appeal to customers across both segments of the B2B sensor market and will ultimately become the favored product of the low tech segment. Management will take advantage of the dual appeal of Cake in the first year by taking a portion of both the low tech and high tech markets in an attempt to retain some profitability. Ultimately, the product will be positioned so that it takes a large portion of the low tech market and will likely not take any portion of the high tech market by the fifth year. The plan that I developed focuses primarily on the success of the company for the next five years as there will be a lot of volatility in the market and further projections are impossible to make at this time. It is difficult to predict how the competitors within the B2B sensor market will be positioned which makes it essential for management to decrease costs as much as possible and increase market share within the low technology segment of the market. My advice to the rest of the management team is to avoid the appeal of developing a new product for either market early on and to avoid the high tech market altogether within the first five years because it will be difficult enough to remain profitable and succeed without squandering business assets on developing a product which will have little chance of being profitable within that timeframe.

Pronounce the Spanish R

Pronounce the Spanish R The Spanish letter R is easy to pronounce but is often mispronounced by English speakers. Here are some tips for getting it right. Difficulty: Easy Time Required: 10 minutes Heres How: Keep in mind that there are two R sounds in Spanish: the single R sound and the double R (or RR) sound.Keep in mind that the single R sound is used whenever the single R appears in a word, except when its at the beginning of a word or after an L, N or S, when the RR sound is used.Keep in mind that the Spanish R doesnt have the distinctive R sound of English. Think of it as a separate letter entirely.Remember that the single R is pronounced with a single flap of the tongue against the roof of mouth.Say these words rapidly as you would if they were English words, and with the accent on the first syllable: peddo, pahdah, cahdah.Congratulate yourself. You have approximately pronounced the Spanish words pero (but), para (for) and cara (face).Note similarly that in English many words that have T or TT between vowels have the same sound, which is different than the T in today. Examples are cattle, bitter and attic.Practice using the same sound in other positions. For example, to say primo ( cousin), rapidly say pdee-mo, but pronounce the d by hitting your tongue against the roof of your mouth. Again congratulate yourself. Youre on your way to learning this sound.You can hear the r pronounced by native speakers in our audio lesson on pronouncing the r . Words spoken in that lesson are pero (but), caro (expensive), primo (cousin), tres (three), seà ±or (Mr.) and hablar (to speak).You can also get advice from About.com readers on pronouncing the r. Tips: Try to imitate the sound of the R as it is pronounced by native speakers.Dont even be tempted to pronounce the R as it is pronounced in English.

Occupational Health and Safety Essay Example | Topics and Well Written Essays - 750 words - 2

Occupational Health and Safety - Essay Example The author focuses on informing employers about the policies and practices they should implement in the workplace in order to ensure a safe working environment for employees. The author advises employers on the importance of having an accident prevention plan in the workplace and the effective strategy for handling accidents and investigations in their companies (Battles, 2011). The author attempts to advise employers on the ways of reducing costs and complications that could arise from the lack adequate safety procedures in the workplace. The author advises employers on ways of fulfilling the guidelines and regulations provided by the Occupational Safety and Health Administration (OSHA) and any other guidelines provided by the state.   The author states that the process of formulating an accident prevention plan involves the evaluation of possible safety hazards across the workplace. The first step in analyzing job hazards entails identifying the potential actions that put the emp loyee at the risk of injury when performing their roles. After indentifying the risks, the employer will then develop the ways of preventing the accident or measures for mitigating the accidents in the unfortunate event that they happen. The process involves undertaking safety program reviews, procedures on managing emergencies, location of first aid kits, and procedures for reporting injuries. Employees should be provides an orientation on the safety procedures when they are newly employed or when existing employees transfer between jobs.

Cross Border Investment Essay Example | Topics and Well Written Essays - 3000 words

Cross Border Investment - Essay Example Investors need to identify these issues and act wisely to minimise the risks involved in cross border investment while maximising the expected returns out of the investment. This paper identifies and elaborates major issues related to cross border investment and viability of this tool in portfolio diversification. Europe is known to be one of the pre-eminent real estate investment destinations for foreign investors. Western European countries such as France, United Kingdom, Germany and Italy etc have remained to be the most favourable real estate markets; however, properties in these countries are extremely high-priced. This is directing attention of foreign investors to the Eastern European countries. These emerging and new markets offer various investment attractions to the foreign investors. Investors from all parts of the world in particular from the UK are taking keen interest in exploring these countries' investment potential. Furthermore, as these countries move towards EU accession, significant growth in their commercial and business activities can be observed. This further adds up to the attraction of these countries as a tool for international portfolio diversification. ... Myer et al. define the term diversification as, "the complete removal of unsystematic risk in an effort to minimize the fluctuations of a portfolio's return in excess of what the market will reward" (1999, p. 163). Diversification in the form of investment portfolio has remained popular among investors for the last several decades. Through portfolio diversification companies and investors invest their funds in several dimensions such as shares, securities, bonds, derivatives and real estate etc. One such strategy becoming substantially appealing to investors in present times is diversification of risk through investment in international financial and real estate assets. Under cross border investment, companies and investors look for investment opportunities around the world and make the most of favourable situation in foreign countries. Investors might opt for either a complete international investment portfolio or a combination of domestic and international financial assets and real estate. Investors are supposed to attain maximum returns out of their invested funds when they diversify the investment over a range of different countries with significant investment opportunities. Research demonstrates that cross border diversification of investment portfolio carries substantial benefits for the investment with respect to risk reduction as well as return maximisation (for example, Addae-Dapaah & Loh (2005); Cheng et al. (1999); Gordon et al. (1998); Sirmans and Worzala (2003) etc.). Cheng et al. affirm this point as, "significant diversification benefits are available when investments are spread out over many different countries" (1999, p. 463). Investors can not only take advantage of favourable situation prevailing in