Absorbance and Spectrophotometry

Experiment 2: Absorbance and Spectrophotometry ABSTRACT: This was an investigation into the effects of different wavelengths of light on methylene blue and carmine red on the absorbance value on a spectrophotometer. A spectrophotometer is used to measure light intensity by emitting a single light source through a cuvette of coloured solution. The particles in the solution, which are coloured, absorb the light depending on how concentrated it is and this produces an electronic reading from the photometer which is the absorbance value.The maximum absorption was found for both solutions and was used to calculate the molar extinction coefficient of methylene blue. An unknown concentration of methylene blue was calculated by using graphs produced in the dilution experiments prior. The results produced supported Beer’s Law because the absorbance was directly proportional to the concentration, and so, we can be assured that the concentration of the unknown methylene blue solution cal culated is relatively accurate. INTRODUCTION: A spectrophotometer is used to measure the absorbance of light by coloured solutions.The absorbance value is produced by a photometer that compares the light detected with a blank cuvette (a cuvette containing just water/clear colourless solvent, which should be 0), with the amount of light detected with a test solution – in this case, methylene blue or carmine red. Using Beer’s Law, we know that the absorbance is directly proportional to the concentration, therefore, knowing the absorbance of a solution can be very useful as the concentration of the solution can be find by substituting known values into the equation: Absorbance = k c t Where: k = constant c = concentration of absorbing molecules = thickness of absorbing layer The aims of this experiment were to use solutions methylene blue and carmine red to confirm that Beer’s Law is true by finding the maximum absorption value for each solution, and then using thi s, find the absorption of methylene blue solution at various dilutions. By plotting these results on a calibration curve (concentration against absorbance), this allows the experimenter to read the concentration at a particular absorbance directly, such as the unknown concentration of methylene blue. METHOD: A spectrophotometer was used throughout this experiment. RESULTS: After finding the absorption for 0. 005% methylene blue solution and 0. 0005% carmine red solution at different wavelengths of light, we plotted a graph to show our findings to make it easier to see what region of wavelength the maximum absorption would occur at. Please refer to figure 1. From this graph, we can see that the maximum absorption for methylene blue is around 650nm-675nm as the peak on the line for methylene is around these values; for carmine red, we can see that the maximum absorption for carmine red is 500-550nm. To obtain a more accurate wavelength value, I placed more cuvettes of methylene blue a nd carmine red around their regions of maximum absorption.After finding the absorption values around each region, I plotted the findings of each solution on separate graphs to show the maximum absorption value. Figure 2 shows that the maximum absorption of methylene blue is 665nm because this has the peak absorption of 0. 965. However, this is not as accurate a value as it could be because the spectrophotometer did not go to more accuracy than 5nm. From Figure 3, we can see that the maximum absorption of carmine red is 0. 207 at wavelength 520nm as this is the peak on the graph. |Maximum Absorption at 0. 0005% | Methylene Blue |Carmine Red | |0. 965 |0. 207 | After we found the maximum absorption for methylene blue, 0. 965, at 665nm, we made up various dilutions of methylene blue and put each solution through the spectrophotometer at wavelength 665nm to find the molar extinction coefficient. I plotted these results on a graph (figure 6) and did the line of best fit through the point s to find the gradient, which is the molar extinction coefficient. Figure 4. Graph showing dilutions of methylene blue and the absorptions each solution givesThe black line on figure 4 represents the regression line. We can use this to find the concentration of the unknown concentration of methylene blue solution by drawing a tangent to the regression line at absorbance 0. 262 (where the unknown absorbed) and reading down from that point on the graph to the concentration. The concentration of the unknown methylene blue is 4. 4 x 10-6 mol dm-3. We can find the molar extinction coefficient by substituting values of absorbance and the concentration of the unknown concentration of methylene blue into Beer’s laws equation.Absorbance = k c t k = absorbance / c t k = 0. 262 / 4. 4 x 10-6 x 1 k = 59545 mol dm-3 cm-3 Therefore, k, the molar extinction coefficient is 59545 mol dm-3 cm-3. DISCUSSION: The main objectives of this experiment was to find the unknown concentration of methyle ne blue by using a spectrophotometer. I found the maximum absorption for methylene blue and carmine red (please refer to figure 1) and using this I determined a more accurate maximum absorption value for each solution by taking further readings around the peak of each line to determine the maximum.However, the findings of maximum absorption for methylene blue and carmine red may not be as accurate as we think because there are extraneous variables that we can not necessarily control. One is that the outside of the cuvette may have been dirty (however, this was controlled to an extent as I wiped each side down of the cuvette with a paper towel before placing it in the spectrophotometer); another variable is that the dial on the spectrophotometer only measured in wavelength intervals of 5nm, and so, we could not get more accurate readings than the ones we concluded with.From figure 1, we can also see that high (maximum) absorptions for carmine red occurs at around 475nm-550nm. This is because the light absorbs most light at this wavelength, and therefore, reflects light at approximately 675nm-725nm which are the wavelengths of the colour red, so we see red solution. The same can be applied to methylene blue solution because we can see from figure 1 that high absorptions for methylene blue occurs around 600nm-675nm – the light absorbs most colours at this wavelength and reflects light at approximately 400nm-450nm which are the wavelengths of the colour blue, so we see blue solution.We could use the maximum absorption of methylene blue found to make dilutions of methylene blue with water to plot a graph proving that Beers Law is true – that the absorbance is directly proportional to the concentration. This is confirmed by the graph produced as the line of best fit is accurate and goes through the origin. APPENDIX: Finding the maximum absorbance: |Wavelength/nm |Absorption | | |Methylene Blue |Carmine Red | |350 |0. 33 |0. 156 | |375 |0. 015 |0. 018 | |400 |0. 015 |0. 046 | |425 |0. 018 |0. 048 | |450 |0. 006 |0. 127 | |475 |0. 029 |0. 093 | |500 |0. 041 |0. 65 | |525 |0. 040 |0. 186 | |550 |0. 077 |0. 144 | |575 |0. 186 |0. 068 | |600 |0. 476 |0. 039 | |625 |0. 622 |0. 028 | |650 |0. 800 |0. 005 | |675 |0. 95 |0. 013 | |700 |0. 102 |0. 004 | More accurate values of methylene blue: More accurate values of carmine red: |Methylene Blue | |Wavelength/nm |Absorption | | 630 |0. 623 | |640 |0. 679 | |655 |0. 885 | |660 |0. 929 | 665 |0. 965 | |670 |0. 913 | |Carmine Red | |Wavelength/nm |Absorption | |510 |0. 205 | |515 |0. 204 | |520 |0. 207 | |530 |0. 191 | |540 |0. 169 | Table below shows the dilutions and the absorbance values of methylene blue at 665nm: Tube |Water : Methylene Blue (ml) |Absorption |Concentration of methylene blue in | | | | |water/mol dm-3 | |1 |4:1 |0. 171 |3. 13 x 10-6 | |2 |3:2 |0. 376 |6. 26 x 10-6 | |3 |2:3 |0. 595 |9. 9 x 10-6 | |4 |1:4 |0. 762 |12. 51 x 10-6 | |5 |0:5 |0. 963 |15. 64 x 10-6 | |Blank |5:0 |0. 000 |0 | Unknown solution absorbance: 0. 262 Formula mass of methylene blue: 319. 6 Working out concentration of methylene blue from %: 1. 0. 0001% methylene blue so, 100/0. 001 = 1000000 so, 1/1000000 = 1 x 10-6 g cm-3 so, conc. = 1 x 10-6 g cm-3 / 319. 6 g mol-1 = 3. 13 x 10-6 mol dm-3 2. (3. 13 x 10-6) x 2 = 6. 26 x 10-6 mol dm-3 3. (3. 13 x 10-6) x 3 = 9. 39 x 10-6 mol dm-3 4. (3. 13 x 10-6) x 4 = 12. 51 x 10-6 mol dm-3 5. (3. 13 x 10-6) x 5 = 15. 64 x 10-6 mol dm-3 ———————– Figure 1. Methylene blue and carmine red’s absorption at regular intervals of wavelengths Figure 2. More accurate wavelengths to find the max. absorption for methylene blue Figure 3. More accurate wavelengths to find the max. absorption for carmine red

Eating Insects Essay

Introduction: Insects have been here long before human civilization, foraging the world and utilizing its nutrients. In a sense then, every human being ever has been forced to interact with insects, so then why has this â€Å"household† item not been utilized as a food source for humans? Well, that’s not entirely true. Entomophagy, according to Webster’s Dictionary, is the practice of eating insects. Using insects as a food source isn’t as uncommon as one may think, the practice of Enotmophagy has been performed for centuries, dating back to Indian tribes and Australian aborginals. Insects greatly outnumber humans and are found in nearly every possible location in the world, so their presence in and around human food isn’t unbelievable. While this practice is becoming more popular around the world, consumers in the U. S. are still skeptical of the idea Whether its eating them â€Å"a la mode†, or eating them without knowing, insects are increasingly prevalent in food consumed by humans. Main Body: Insect consumption seems a little farfetched, yet there are several reasons that this idea may not be crazy. Meat is considered to be one of the best sources of protein in diets, however, certain insects provide amounts of protein comparable to that of meat; thus making insect consumption a much cheaper alternative to meat in developing countries. Take, for example, 100 grams of dried caterpillar, providing fifty-three grams of protein, seventeen percent carbohydrates, and a whopping fifteen percent fat. In fact, they are believed to have a higher proportional fat and protein value than that of beef and fish. Also, most edible insects are proven to be much cleaner than fish. For example, According to Pulitzer prize winner, Dr. E. O. Wilson of Harvard University, there are an estimated ten quintillion (10,000,000,000,000,000,000) insects in the world, or about one hundred and fifty million insects per one human being. Insects are in no way, shape, or form, a product of scarcity; insects are found nearly everywhere, thus proving to be another reason for insects to be used for food consumption. Due to the fact that insects provide incredible amounts of nutritional value and an incredible population, they are proving to be means of income for people in developing countries. Specifically, Sudan and Nigeria trade and utilize insects as a source of income, exporting three to five tons annually to countries such as Belgium and France. This means of earning income for Sudans and Nigerians produces $41,500 annually. Insects being utilized for their nutritional value and high concentration, proves to show how incredibly useful insects are to humans, surprisingly as a food source. Many countries all over the world are taking advantage of insects as a food source. In Africa, several groups use Orthoptera as a means of food. They gather locusts early in the day, before they are active; they then boil them before group members clean and salt them. Noting goes to waste, they even use the legs by grinding them up and mixing them with peanut butter and salt. Also, performed in areas of Africa and Australia, termites are being utilized for their high protein and fat value. The big queen castes of termites, reaching three inches in lenghth, is most sought out due to its incredibly high nutritional value. They are often lightly fried and sold in markets to be eaten by hand, thought to be a snack food. However, termites can also be used as a colorless oil used when frying food.

Business Coursework

Business Coursework Business Coursework Any student attending business courses has to write a business courseworkat some point in their academic career. Actually, business coursework may weight up to 50% of your final grade. Thus, students should be very responsible with regards business coursework writing. You cannot handle such a project overnight, as you have to devote enough time to writing, organizing ideas, researching thoughts of others, and editing your final draft of business coursework. Business is complex study and it includes a lot of themes for discussion. Any them can be interpreted into the topic anyhow related to it, so while choosing the topic you should be sure that you are keen on it and, very important, that you can add something new into the current knowledge on the topic. It is of primary importance to use the most relevant, updated resources for your business coursework writing: Moreover, you should rely on journal and magazine articles, books, and governmental sites only to support your statements. Wikipedia, personal blogs, or forum postings are not treated as reliable sources of information and it will not help you get a good grade. Business coursework should: have a good topic for discussion. It must not be too narrow as well as not too wide, because in the first case you will have to search for the needed material and maybe to pay for the information; while in the second case you will not include all the information into one business coursework.There is a danger of the treading water. Thus, be wise with the choice of sources. be planned in advance. It is not easy to conduct thorough research. You will have to collect material, search for the questions, write an outline and format your paper and many other things to do. If you do not think over the sequence of ideas, the chaos will be the defining feature of your business coursework.Start working. be written according to the required structure. You have heard a lot of times that any written assignment should be done in the following structure: introduction, body parts and conclusion, - but you do not know that introduction should contain the thesis statement, the body parts should have as many paragraphs as many thoughts you want to develop in thebusiness coursework, the conclusion should be written according to the introduction and include your own solutions to the problem. So structure properly. You may avoid all of these painful aspects of business coursework writing process if you rely on professionalism of our writers! We can definitely deliver a well-written coursework on time. Satisfaction with quality guaranteed! Interesting posts: Cause and Effect Essay Argumentative Essay Topics English Essay Writing Thesis Writing Thesis Topics

Germany Economy in the Modern Days

Germany Economy in the Modern Days Introduction Germany practices an open economy based on a strong economic base which amounts for a third of the gross domestic product (GDP). German economy is influenced by competitions in the global market especially in international mobile and capital technology. It practices capitalism and free market in order to enhance their competitiveness in the global economic arena. The government only exercises regulation and subsidizes sectors like coal mining and agriculture.Advertising We will write a custom research paper sample on Germany Economy in the Modern Days specifically for you for only $16.05 $11/page Learn More Macro-Economic Picture of Germany In the European Union bloc, Germany has the largest population. In the year 2009, the population of Germany was estimated to be 81.8 million. Its prosperous economy attracts a lot of immigrants from all corners of the world. In terms of nominal GDP, Germany ranks 4th while in terms of purchasing power, it ran ks 5th in the world. Germany is considered a technological and scientific development hub. It is a global dominant actor in the industrial production of machinery, chemicals, vehicles and other household implements. Despite the global recession, German economy was considered one of the stable economies in the world. Figure 1 below indicates how German economy performed during the global financial crisis period from 2007 to 2009. Figure 1 (Economy Watch 1) German’s GDP is one of the strongest in the world. In 2009, its per capita GDP was $34,200, down from $35,500 in 2008. During this period, the rate of unemployment grew from 7.8% in 2008 to 8.2% in 2009. This is largely linked to slow industrial growth to less import productivity (Economy Watch 1). This is indicated in figure 2 below. Advertising Looking for research paper on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Figure 2 (Economy Watch 1) The current unemployment rate in Germany stands at 7.5%. The following is the current contribution of various sectors to the economy in the year 2010. Major Economic Contributors Agriculture contributes approximately 0.9 percent of the GDP. Among the agricultural products grown are corn, wheat, sugar, barley and hops. Industrial sector accounts for 26.8 percent of the economy. Products from the industrial sector include cars, chemicals, medical equipment, and aerospace equipment. In terms of trade, Germany exported goods worth $1.124 trillion. The major exports were chemicals, motor vehicles, steel, iron and electrical products. Their major markets are France, US and the Netherlands. German imports goods worth $937 billion. Their major imports are petroleum products, manufactured goods, apparel, and electrical products. Their major suppliers are Netherlands, China and France. Germany’s economy is export oriented and forms basis of micro-economic expansion and these exports amoun t to a third of the national income. Germany imports represent 12.56 percent of the economy while exports account for 14.099 percent of the GDP. Nature of German Economy Germany practices social protection where the state is a dominant actor in the economic realm. It does not have natural resources except coal, wood and minerals, hence most of their raw materials are imported (Siebert 19). Germany’s economy is a mix of government regulated and one of a free market. The government specifically regulates social and labor issues. Most of the companies operating in Germany are built around a technological knowledge. Private ownership plays a significant role in the ownership of various companies and hence owner-entrepreneur is the main driving force. There is growing unemployment in Germany. This is associated with wage formation, reservations of wages and weakening demand for labor.Advertising We will write a custom research paper sample on Germany Economy in the Modern Days specifically for you for only $16.05 $11/page Learn More German Economic Ranking Germany experience low birth rates, this implies that an aging population is inescapable and continues to be an economic challenge in future (Mueller 281). Germany ranks second globally in market and economic competitiveness after USA. This is largely due to ownership laws and its exemplary general law and order. In the 2011 global competitive index, Germany was ranked one step lower than the 2010 ranking in position six with an indicative score of 5.41. Global competitiveness is based on twelve pillars, these pillars are: infrastructure, institutions, macroeconomic environment, health and primary education, higher education and training, goods market and efficiency, labor market efficiency, financial market development, technological readiness, market size, business sophistication and innovation (Klaus 57). The economic freedom score of Germany is 71.8 and it is ranked 23rd most free in the world. It has experienced increase in six out of the ten indicators of economic freedom. This ranking is higher when compared with the global average. Germany in the Global Economy Germany has withstood the challenges of the global environment to emerge as one of the most powerful and dynamic economy. It has strong business and investment freedom which is supported by openness to global commerce, excellently protected property rights and favorable business regulatory environment. Germany also treats foreign and local investors equally (Heritage foundation 1). Germany is a deeply divided country in terms of income. There is an increase in the rate of poverty. Majority of the population live in less than 60 percent of the median household income. Children are the most hit by poverty. It is evident from the OECD records which show that the rate of poverty in Germany is growing at an exponential rate than any other OECD country. In order to eliminate poverty, the government has proposed an elimination of part-time employment and temporary jobs and instead it has promoted the revision of wage structure and full time employment. Women and the minorities are relegated in economic activities in Germany.Advertising Looking for research paper on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Ranking of nations is necessary in order to enhance global competitiveness. It enables some countries to utilize their opportunities outside the nation by using its strengths. Germany, with one of the strongest economies in the world exerts a lot of influence in the global economy. Germany plays a fundamental role in arranging the global monetary system. Germany is a major contributor to the European Union hence its solvency problems pose a threat to the refinancing of the EU; it has therefore the responsibility to push for the implementation of sound fiscal policies within the Euro zone (Weidmann 2). Conclusion Germany economy is growing at an exponential rate. The economy is primarily driven by domestic market which comprise of capital formation in machinery, equipment and consumption expenditure. Germany has also experienced growth in exports and imports but the share of export and import contributes less than the domestic market. The government in Germany, unlike in some other c ountries, play limited role in the economy, only particularly that of regulation and subsidizing some sectors. Women and minority groups are sidelined in playing a role in the economy. According to the OECD standards, a significant percentage of the population of Germany fall in the poverty level and it is considered the highest poverty level in the OECD bloc. Being a major contributor to the European Union, Germany is an actor in the global economy. Economy Watch. Germany Economy. Economy Watch, 2011. Web. Heritage Foundation. 2011 index of economic freedom. Heritage Foundation, 2011. Web. Klaus, Schwab. The Global competitiveness report 2011–2012. We Forum, 2011. Web. Mueller, Anthony. â€Å"The German Economy: Europe’s faltering Giant†. The Independent Review 12.2 (2007), 279–283. Siebert, Horst. The German economy: beyond the social market. Princeton, NJ: Princeton University Press, 2007. Print. Weidmann, Jens. Germany’s role in the global eco nomy. BIS, 2011. Web.

Challenges of Recruitment Processes Samples

Google, an American company with multinational presence and specializing in products and services relating to the internet, was founded by the duo of Larry Page and Sergey Brin in 1998. It is one of the most desired workplaces in the world, and that has been magnified by the production of a recruitment video that seeks to provide prospective applicants with a sneak peek into what it entails to work for the organization. One of the key messages from the video about google as an employer is, life at the organization is about more than just work. For example, there are recreational facilities for employees. The fact is, it is not just about productivity, but also, the experience is meant to be pleasant. The other key message is, ‘things happen,' implying that there is fast decision making with regard to whether projects will be approved or not. One of the interviewed engineers stated that ideas are approved at a faster rate i.e. on the order of weeks, months or less in comparison to the institutions that they worked for earlier. Also, there are certain qualities that are rooted for by the company when recruiting. They encompass the following: individuals with ambitious ideas, fast responses to requests, big achievers, passionate about projects, high energy levels, a good understanding of the product base and commitment to clients (Google Inc, 2006). Hence, employees are surrounded by bright and enthusiastic colleagues, working on interesting problems and products that impact a lot of lives e.g. Gmail (Google Inc, 2006). Again, they place huge importance on balancing work and life. To demonstrate, it has a child care center touted as one of Google’s most valuable programs. Further, expectant mothers are given time off before and after delivery. Additionally, they have 75% pay for all of the 12 weeks that mothers were expectant. Furthermore, they are afforded flexibility at work such as working fewer hours. According to Google’s engineering director featured in the video, Google’s culture, philosophy and personalities drawn from its founders. Organizational culture evident from the video is briefly outlined below. Google has a work environment that fosters flexibility, creativity, and innovation. Specifically, the organization has a 20% rule where engineers have 20% of their time to work on individual projects. Some of the projects highlighted in the video included the below mentioned. One, where an engineer created a rotating globe showing where on the globe Google users were searching from. Two, an added feature on google.com where when a user types in the name of a movie and the zip code, it will return to them a list of theatres around that area, with show time and reviews to that particular movie. Importantly, there is a free exchange of information through different setups. First, there is an impactful mentoring program where both incoming and resident employees are assigned official mentors and could also take up unofficial mentors. Therefore, there is an easy transition for new comers and those stepping up to new positions. Second, to stimulate the mind of its employers, the organization has educational talks called Ted talks in different topics such engineering and the latest theories about the origin of the universe (Google Inc, 2006). Again, the organization has a great startup spirit in that projects take a shorter period to launch. Lastly, it provides impactful products to the general public. The development of the theories began in 1920’s amidst the industrial revolution, during which productivity was at the core of businesses (Jerome, 2013). A particular theory that fits well with the Google recruitment video is Maslow’s Hierarchy of Needs Theory. The theory is built on the premise that the desire of many employees is to be included in an entity that supports their growth and development (Jerome, 2013). Thus, if special attention is a guarantee and there is an encouragement for participation, the view that their work is of significance motivates productivity and high-quality work. Concerning the theory, the video is effective in attracting the right candidates, for the reasons outlined below. The behavior of humans is related to needs. The video comes across as testament that the needs, as outlined by Maslow, will be met. First, ranked at the bottom of Maslow’s hierarchy, is psychological needs. It entails the basic needs that sustain human life. Such include food, shelter, clothing among others (Wahba&Bridwell, 1973). The video outlines the provision of all these at Google. Second, the security and safety needs which are connected to the psychological fear of job loss. Expectant mothers, for instance, are guaranteed of keeping their jobs. During the 12 months, they are afforded 75% of their salary and flexibility in terms of working hours (Google Inc, 2006). Third, the need according to the theory is the social need. The need posits that it is the desire of an employee is to be in a group and be accepted. This is made possible by Google by mentorship p rograms that facilitate regular interaction with superiors and other forms of activities that make interactions with other employees easier and possible. Ideally the video advocates for the creation of a sense of community. Fourth, the theory stipulates a self-esteem need that has much to do with recognition (Wahba&Bridwell, 1973). The importance of this fact has been duly emphasized in the video citing various activities that enhance self-esteem e.g. the 20% rule. Last, and the highest ranking need according to Maslow, is self-actualization. It entails the desire of an employee to become what they think they are capable of. Google provides for this through the 20% rule, enabling employees to utilize their maximum potential. Attracting the right kind of candidates for job openings is important to any organization in existence,so as to meet the organizational goals and values (Arachchige& Robertson, 2011). According to Maroko& Uncles (2008), there are certain characteristics that come into play when a potential employer is seeking to attract the right candidates for a job opening:attractiveness and accuracy. These are some of the factors that the video by Google looked to enhance by a brief documentation of its organizational culture. About attractiveness, the video demonstrates awareness of employee needs, differentiation in the market and relevance to a particular pool of enthusiasts.   Further, it accurately portrays accuracy regarding organizational culture, values, employee experience and the employer brand (Maroko& Uncles, 2008). A study by Williamson et al. (2010) emphasized the above claim on attractiveness stating that the amount of information given attributing the company and the different positions on offer has an interactive effect on potential applicants. Arachchige& Robertson (2011), provides other characteristics of an organization that fresh graduates look for. The most preferred attributes are: will gain experience that is relevant to career, promotes self-esteem, faster decision making, better relationships with colleagues and superiors, fun working environment among others. These are some of the â€Å"attraction† factors put across by the video. First,   finding a qualified employee in time has become more difficult.Uncontrollable circumstances may lead to someone being laid off, or alternatively, an employee might have left for another opportunity.In these situations, the position needs to be filled promptly (Meister, Willyerd& Foss, 2010). As such filling, the position becomes the next order of business. However, in as much as the market is full of applicants who would be interested in the position, there are challenges. A considerable amount of time is spent on sourcing suitable applicants and profile and CV reviews. Thus, there is a need to find ways of getting applicants of good quality into a recruiter’s short list fast. Second, ascertaining the legitimacy of a resume is an uphill task.Reason being, faking resumes has been a common occurrence in a recruiter’s bid to find a fit for a position. Included here are fake referrals, education, and certification (Mallory, 2014). Researching an employee’s resume to establish if every qualification is genuine is time consuming when working under a strict time frame. Third, settling for the right choice is a daunting task. A culmination of the above-mentioned factors that make the recruitment process challenging results in difficulties settling for the right candidate. A recruiter might have lots of talented candidates but with limited positions to accommodate at least the majority, chances are they might let extremely talented individuals leave. According to the survey by PWC and KPMG, the cost of a bad hire is estimated at double the salary he would have been paid to the individual. Last, as per the findings of a study carried out by Cappelli (2008), career decisions are no longer made by managers and executives as it was in the past where individuals were matched with jobs. As such, the most talented of individuals have the freedom to turn down offers if the offer that they expected does not come along. Similarly, there is a general talent problem that has since been burdensome to recruiters in companies of Google’s magnitude. They want the skills they need at the time of their choosing and in a manner that is desirable to them. Employees on the other hand desire the guarantee of advancement and an autonomous level of control n their careers (Cappelli, 2008). Arachchige, B. J., & Robertson, A. (2011). Business Student Perceptions of a Preferred Employer: A Study Identifying Determinants of Employer Branding. IUP Journal of Brand Management, 8(3). Cappelli, P. (2008). Talent management for the twenty-first century. Harvard business review, 86(3), 74. Google Inc. (2006). Google Recruitment Video. Google: https://www.youtube.com/watch?v=JcXF1YirPrQ. Jerome, N. (2013). Application of the Maslow’s hierarchy of need theory; impacts and implications on organizational culture, human resource and employee’s performance. International Journal of Business and Management Invention, 2(3), 39-45. Mallory, M. (2014). A Research Proposal: Negligent Hiring and Fraudulent Resumes. Meister, J. C., Willyerd, K., & Foss, E. (2010). The 2020 workplace: How innovative companies attract, develop, and keep tomorrow's employees today (p. 5). New York, NY: Harper Business. Moroko, L., & Uncles, M. D. (2008). Characteristics of successful employer brands. Journal of Brand Management, 16(3), 160-175. Wahba, M. A., &Bridwell, L. G. (1973). MASLOW RECONSIDERED: A REVIEW OF RESEARCH ON THE NEED HIERARCHY THEORY. In Academy of Management Proceedings (Vol. 1973, No. 1, pp. 514-520). Academy of Management. Williamson, I. O., King, J. E., Lepak, D., &Sarma, A. (2010). Firm reputation, recruitment web sites, and attracting applicants. Human Resource Management, 49(4), 669-687.

Teratogens from a biological perspective Essay Example | Topics and Well Written Essays - 750 words

Teratogens from a biological perspective - Essay Example The probability of impairment is determined by several other factors which interact with the teratogens. As mentioned above, several factors influence the adverse effects of teratogens and the accompanied pathological process. These factors include timing which refers to the phase of development or pregnancy which the child is affected by the teratogen. Certain teratogens only have the possibility to cause harm to during certain periods of development, whereas others are constantly harmful throughout the pregnancy. An example of such teratogens is behavioral teratogens which harmful regardless of the period. In essence, the neurological system is susceptible to damage throughout pregnancy. The critical period is also a stage of timing which should be considered as this refers to the period when an organ or tissue is most susceptible to teratogen effect (Holmes et al., 2011). The next factor is exposure, which refers to the dosage or quantity of the teratogen that the fetus is exposed t during development. In addition, the frequency which this fetus is exposed also determines the results of damage. There is also the threshold effect which involves the dosage which a certain teratogen is harmless to a fetus until the threshold has been surpassed. Interactions are also essential in the effects of teratogens and some of them are only effective or more effective in the presence of other teratogens. Other risk factors may also have the same relation with teratogens. The third factor that affects the presentation of teratogens is genetic composition. There are certain genes that predispose an individual to teratogens hence he or she is likely to be affected by them. Examples of teratogens include diseases such as AIDS, HIV or Rubella; drugs which can be either medical or social and environmental toxin (Rathus & Longmuir, 2011). As mentioned above, teratogens have different effects some which

State-Federal Controversies Essay Example | Topics and Well Written Essays - 250 words

State-Federal Controversies - Essay Example The American people do not want to be governed by a single authority just like the past Britain rule. To be regulated at the state level is appropriate. In a federalist set-up, the local governments are given more autonomy. Autonomy is very important to them especially in implementing their own rules. Being autonomous means that the local governments (which refer to the different states in America) do not depend on the national government in terms of budget. The states could implement their own taxing laws as a source of their budget and they could use their income without asking permission from the national government. Nevertheless, despite this freedom, the local governments are obliged to observe the American constitution. This means that they are free to make their own policies as long as it is in conformity with the letter and spirit of the constitution. The issue is important to consider since it talks about the type of government in America. It can enlighten the readers of the rationale behind the adoption of such governmental structure. I am grateful to the founders of the U.S. constitution for adopting federalism. Work Cited Bodenhamer, David. Federalism Checks the Power of the Central Government. America.gov Archive, 2 Jan. 2007. Web. 4 Apr. 2011. .