Miller-Urey Experiment Essay Example | Topics and Well Written Essays - 750 words

Miller-Urey Experiment - Essay Example There is no denying the fact that this experiment till date is regarded to be a classic experiment pertaining to the origins of life. This experiment was carried on by Harold C Urey and Stanley L Miller at the University of Chicago in the year 1953. The scientific community was in doubt about the chemical components that constituted the atmosphere of the early earth. Thereby in their experiment, Miller and Urey selected Water, Hydrogen, Ammonia and Methane, considering them to be the salient components constituting the atmosphere of the early earth, when the life was still not there (Willis, 2000). These chemicals were made to circulate in an array of flasks and glass tubes which were completely sterilized. These glass tubes and flasks were connected together in a loop as is shown in the above figure. One of the flasks was half filled with water, while the other flask in this loop was fitted with electrodes. The water in the half filled flask was heated to create water vapors in the loop and the gases so created were circulated through the loop to simulate the atmosphere of early earth. The water vapor so produced represented the water in the lakes and rivers on the early earth which eventually evaporated and consequently precipitated down as rain. The electrodes in the other flask were intermittently fired to create lightening storm like effect, which was believed to be pervasive on early earth (Willis, 2000). After carrying on the experiment for one full week, Miller and Urey found out that that almost 10 to 15 percent of the carbon existent in the system they contrived in their experiment had turned to organic compounds (Willis, 2000). They also discovered that nearly 2 percent of the carbon now constituted 13 of the 22 amino acids that went into the making of proteins in living cells (Willis, 2000). Glycine was found to be the most abundant amino acid in this protein soup (Willis, 2000). No doubt the

Operatios Management Essay Example | Topics and Well Written Essays - 2000 words

Operatios Management - Essay Example The author has presented his idea and has used different sources and reliable sources for this journal article in order to improve the information presented. Forecasting techniques can be improved and this can allow the businesses to improve their overall supply chain planning and control. The findings of this article are very much the same as of the other authors as they have also emphasized on collaborating with other players in the supply chain. Ramanathan is working in the department of Business Systems in the Bedfordshire Business School and has sufficient knowledge of business and he has used different books and research papers thus, the knowledge and information presented in the article is reliable. Article 2: Moyano-Fuentes, J., Sacristan-Diaz, M., & Martinez-Jurado, P. J. (2012). Cooperation in the supply chain and lean production adoption: Evidence from the Spanish automotive industry.  International Journal of Operations & Production Management,  vol. 32, no. 9, pp. 10 75-1096. http://www.emeraldinsight.com/journals.htm?articleid=17048068 Journal: International Journal of Operations & Production Management Lean production is important in managing the overall supply chain in business. ... The article discusses about the evidences from the Spanish automotive industry. This article has been written by three different authors, Jose? Moyano-Fuentes, Macarena Sacrista?n-Daz and Pedro Jose? Martnez-Jurado. All these three authors work in different universities in Spain and therefore these authors have the knowledge regarding supply chain, business and operations management. Moreover, with different research studies cited by these authors, the information presented is highly reliable. Article 3: Wee, H., and Wu, S. (2009). Lean supply chain and its effect on product cost and quality: a case study on Ford Motor Company. Supply Chain Management: An International Journal, Vol. 14, no. 5, pp. 335 – 341 http://www.emeraldinsight.com/journals.htm?articleid=1810704&show=abstract Journal: Supply Chain Management: an International Journal The other article that has been used for this research study is on the company, Ford Motors. The article analyzes the lean supply chain of t he company and how this system has helped the company in improving the cost and quality of Ford Motors. The findings of the article have revealed that by implementing lean supply chain, the company has been able to reduce its cost, enhance its quality and reduce its lean time. The article also presents recommendation for the company. Wee is one of the authors of the article and he is working at Department of Industrial and Systems Engineering in a university in Taiwan, Chung Yuan Christian University. The other author is Simon Wu and he is not only working in the Chung Yuan Christian University but he is also involved with the ford motors in the Ford Production System Manufacturing Division. Thus this