Saturday, February 22, 2020

Method Essay Example | Topics and Well Written Essays - 2000 words

Method - Essay Example The antioxidants stock solutions were prepared separately. Four hundred milligrams of L-ascorbic acid and tannic acid were dissolved in 5 mL of water to make a stock solution of 80 mg/mL. Forty milligrams of epigallocatechin were dissolved in 5 mL water for a concentration of stock solution of 8 mg/mL. Cells of Staphylococcus aureus strains SH1000 and UAMS-1 were streaked on Mueller-Hinton Agar (MHA) plates and incubated 37Â °C for 24 hours. After this period, single colonies were picked, and transferred to tubes with Mueller-Hinton Broth (MHB). The tubes were placed in an incubator-shaker at 37 Â °C for another 24 hours. The overnight cultures in MHB, after appropriate dilution, served as the inocula for the experimental determination of minimum inhibitory concentration (MIC) of antibiotics and antioxidants, and mutational frequencies (MF). Overnight cultures were always used fresh, and not after storage. The desired antibiotic starting concentrations were obtained by diluting the desired volume from the stock solutions. For the determination of the mupirocin MIC, the starting concentration was 16 Â µg/mL. This amount was diluted doubly using sterile saline to produce decreasing concentrations of 16, 8, 4, 2, 1, 0.5, 0.25, 0.125, 0.0625, and 0.03125 Â µg/mL. The starting concentration of rifampicin was 2 Â µg/mL. Again, double dilution was performed. The following concentrations were used to determine the rifampicin MIC: 2, 1, 0.5, 0.25, 0.125, 0.0625, 0.03125, 0.01563, 0.0078, and 0.0039 Â µg/mL. To determine the MICs of the antioxidants that were to be used in the experiment, the antioxidants solutions were also serially diluted similar to what was done for the antimicrobials mupirocin and rifampicin. The starting concentration of all the antioxidants was 8 mg/mL. After double dilutions, the concentrations used were 8, 4, 2, 1, 0.5, 0.25, 0.125, 0.0625, 0.03125, and 0.01563 mg/mL. Cellulose ester disks with 0.22 Â µm

Wednesday, February 5, 2020

Mediterranean Shipping Company Research Paper Example | Topics and Well Written Essays - 1500 words

Mediterranean Shipping Company - Research Paper Example Such diversification is responsible for internal split among the employees, and in specific cases can be responsible for treason or ambush. The possibility of such occurrence is low, but if occurs it will cause significant business loss. 3. The EU embargo on certain African and Asian countries will affect the number of shipment contracts. The shipping company in some cases has to undo its contract only because of the EU trade legislation. The EU has therefore certainly restricted the opportunities for the shipping company in some locations. 1. The economic challenges have intensified; the ongoing economic turmoil has narrowed the business opportunities for industrialist nations. The cuts in the business plans have dampened the trade volume which subsequently affects the business plans for the shipping company. 2. It is important for the company to undertake expansion plans, and the units of properties shall be increased to offer effective coverage and support to the business customers. Unfortunately, the ongoing economic recession has barred support from the financial institutions. 3. The valuation of Yuan in the international market is challenge for the European and American shipping companies. The Mediterranean Shipping Company has to suffer due to its higher cost of service and employee's remuneration only because the Chinese companies are able to support their employees at extremely low rates; and the industrial units within China offer cheap products which have strengthened the capacity of the Chinese shipping company. Social 1. The company has no social restraint. Technological 1. The company has to promote research and development unit. The shipping technology is magnanimous, and any damage to the shipping parts shall affect the shipment plans for months. The company has to therefore adopt stringent maintenance plans and has to focus upon the procurement of minimum inventory to support the ships on voyage. 2. The shipping company has to invest in the monitoring system for the machines. This shall be heavy investment, but will forecast any mechanical damage to the ship. Any mechanical issue will prompt the shipping crew at early stage, and will assist the employees in the identification of the issue much before it reaches advance level. The failure of the parts can be protected, and this will ensure the integrity of the parts. 3. The shipping company has to invest heavily to make the cargo loading and unloading process foul-proof. This will require technological improvisation. The company should necessarily focus on this area. References 1. Chua, W. F. Radical Developments in Accounting Thought. The Accounting Review. 2003. 2. Zahirul Hoque. Methodological Issues in Accounting Research: Theories and Methods. 2006. Spiramus Press Ltd. 3. Sicco Van Gelder. Global Brand Strategy: Unlocking Brand Potential Across Countries, Cultures. 2003. Kogan Page. N.Y. 4. Jean-Noel Kapferer. The New Strategic Brand Management: Creating and Sustaining Brand Equity. 2004. Kogan Page. N.Y. 5. Kai Yang. Design for Six Sigma for Service. 2005. McGraw-Hill Professional. N.Y. 6. Harald A. Benink. Coping With Financial Fragility and Systemic Risk. 2000. Springer. pp. 86. 7. Krishnamurthy Sriramesh, Dejan Vercic. The Global Public Relations Handbook Theory, Research, and Practice. 2003. Lawrence Erlbaum Associates. pp.