Tuesday, December 31, 2019

Implementing A Dbms System Within Any Organization Large...

Introduction Implementing a DBMS system within any organization large or small requires proper planning, analyzing files and shared drives and a knowledgeable DBA (Database Administrator, in-depth knowledge of DBMS architecture. Using a DBMS to store and manage data comes with advantages, but also overhead. One of the biggest advantages of using a DBMS is that it lets end users and application programmers access and use the same data while managing data integrity. Data is better protected and maintained when it can be shared using a DBMS instead of creating new iterations of the same data stored in new files for every new application. The DBMS provides a central store of data that can be accessed by multiple users in a controlled manner.†¦show more content†¦This is apparent through the internet, in software applications or from cloud based virtual connectivity. Database applications have heavily influenced areas such as the news media, education, social networks, military a nd government organizations. Advances in database technology has enabled the governments of various countries to collect intelligence data on terrorist organizations both internal and external, combat fraud and waste, maintain intelligence on individuals and organizations and government agencies such as the Census bureau collects statistical demographic data of the population. The advancement of technology has enabled businesses to reduce travel and distance. Work is now distributed globally by utilizing time zones. While engineers are working in the United States, engineers in India are engaged in the same projects. Wages are lower, there are no benefits to pay for, just simply labor and much lover in other countries allows for organizations to maximize an ROI (return on Investment). Outsourcing work has provided companies with funding toward research and development, marketing and advertising. Due to a shrinking global market, many IT firms can now offer real-time results to their customers. Monitoring the Asian stock markets while Americans slept helps investors maximize their international investments. This was never possible 30 years

Monday, December 23, 2019

The Effect Of Ph Solution Of Feed Phase On The Removal...

Figure. 7. Effect of pH solution of feed phase on the removal efficiency of citric acid Transport conditions: Feed phase: citric acid 10-2 M, pH 2-12. Stripping phase: deionized water, pH=6.8. Membrane: 12.60 cm2 of surface area, Calix[4]resorcinarene (0.15 g/g mixture of polymers), 0.03 ml 2-NPOE/g mixture of polymers. Values obtained after 5 days of experimentation. 3.8 Stability of PIMs In this study, one PIM was reused, whereas the feed and strip phases were replaced after one cycle with fresh ones in 5 experiments and each experiment lasted from 4 days. As observed in Fig. 8. The initial flux of PIM shows a gradual decrease with increasing of cycle’s reuse, which may be caused by the loss of carrier from membrane [37].†¦show more content†¦Conclusion In this study, a polymer inclusion membrane was prepared and succevally applied for the removal of citric acid from synthetic wastewater. The mixture of CTA and CA was found to be the optimum base polymer for quantitative transport of citric acid. Moreover, the nature of carrier especially alkyl chain length, stirring rate, and pH of feed phase are also important factors affecting the increased rate of citric acid transport. Hence, from results obtained it can be seen that the investigated calix[4]resorcinarene are effective extractants for citric acid and that their extraction abilities depend on the alkyl chain length of the substituent in the macrocycle. Choosing the appropriate length of alkyl chain, very selective system can be designed. The excellent efficiency for the citric acid transport by the proposed PIM system reveals its potential application for the selective removal, concentration and purification of citric acid from different media. References [1] K.L. Kalra, H.S. Grewal, Fungal production of citric acid, Biotechnol. Adv., 13 (2) (1995) 209–234. [2] M. Pazouki, P.A. Felse, J. Sinha, T. Panda, Comparative studies on citric acid production by Aspergillus niger and Candida lipolytica using molasses and glucose, Bioprocess Eng., 22 (2000) 353–361. [3] A.A. Ghoreyshi, F.A. Farhadpour, M. Soltanieh, M. Abdelghani, Transport of small polar molecules across nonporousShow MoreRelatedCell Biology Final Essay30093 Words   |  121 PagesStanley Millers experiment that applied electric sparks to a reducing atmosphere of methane, ammonia, water, and hydrogen showed that under these conditions, A) nucleotides can form. -B) amino acids can form. C) amino acids can polymerize into polypeptides. D) nucleotides can polymerize into nucleic acids. 7. Organisms that evolved the ability to use H2O as a donor of electrons and hydrogen for the photosynthesis conversion of CO2 to organic compounds radically changed Earth by producing Read MoreSexually Transmitted Diseases35655 Words   |  143 Pages 148-150 Onion and cheek cells 150-151 Ecological study 154 Seed structure and germination 155-157 Reproduction in plants 158-165 Sexually transmitted diseases 166-176 Birth Control and contraceptives 177-185 Effects on population growth 186-187 Drug and drug abuse 188-191 Man’s impact on the environment 192-199 Reproduction in man 200-201 References 202 Introduction Many people live their lives without having a clue about certain

Sunday, December 15, 2019

A 20th Century Leader Free Essays

‘Robert Kennedy: His Life’ is the autobiography of Robert F. Kennedy (popularly referred to as RFK). It was written by Evan Thomas, a former senior editor of Newsweek in Washington. We will write a custom essay sample on A 20th Century Leader or any similar topic only for you Order Now He was the first biographer to have access to Kennedy’s personal papers as attorney general. Thought the book contains no shocking revelations, there is a lot of fresh information gathered from Robert’s surviving colleagues, files and other sources. In the book, Thomas gives an elucidation of the man’s strengths as well as failures, and discloses the complex web of relationships in the Kennedy family. Depicting RFK as a man whose ‘house had a lot of mansions’, Thomas refers to him as ‘the lucky one’. Throughout the book, Thomas brings out the many phases of Kennedy’s personality. He was a very rich individual who could act like a spoiled child one day, and show sympathy to the minorities the next. Though the book honors a man whose potential was cut short too soon, Thomas’ book focuses on a man, a family and an era about whom Americans will never fully understand. Robert was the younger brother of U.S. President John F. Kennedy (JFK). Born on November 20, 1925, he was the seventh born of Rose Fitzgerald and Joseph P. Kennedy. After living in Brookline, Massachusetts for two years, Robert and his family moved severally to mansions located in different parts of New York such as Riversdale and Bronxville. Robert schooled at Riversdale and Bronxville elementary schools till 5th grade, and then moved to Riverdale Country School for 6th grade. In 1938 when 12 years old, Robert took his first trip abroad with his family to England, where his father was serving as an American envoy. After finishing high school in 1943, Robert was drafted into the U.S. Naval Reserve as a trainee seaman. Robert Kennedy’s involvement in politics According to Brian (1996), when World War II broke out, Robert took a break from studies at Harvard and joined the U.S. Navy. After the war, he went on to complete his studies and graduated with a law degree from University of Virginia. In the 1950s, he served as a counsel to a US Senate committee probing labor unions, leading to his open feud with the Teamsters leader Jimmy Hoffa. Robert’s political career is more closely associated with his brother, JFK. He oversaw JFK’s successful campaigns for the US Senate in 1952 and the presidency in 1960, and then was appointed as Attorney General in John’s administration. He was at the forefront of enforcing civil rights measures in the South and became the president’s closest adviser on all issues, for example foreign policy matters such as the Cuban missile crisis. After his brother’s assassination in 1963, Robert continued to serve in the Lyndon Johnson government as Attorney General and was unhappy that Johnson overlooked him for vice-presidency in 1964. Robert ran successfully for senator of New York. As senator, he was loved by African Americans and other minorities such as immigrant groups and Native Americans. He spoke convincingly in favor of the excluded, disaffected and impoverished, hence getting the support of social justice campaigners and leaders of the civil rights struggle. He backed President Johnson on domestic matters, particularly civil rights and the war on poverty, but did agree with him over the war in Vietnam. By 1968, he was one of the most vocal advocates against the American policy on Vietnam. On domestic policy however, he became more and more liberal and developed a soft spot for the dispossessed and the minorities. Robert declared his candidacy for the US presidency in early 1968. He was assassinated on June, 5, 1968 at the Ambassador Hotel in Los Angeles just after delivering a speech to his supporters upon capturing the California primary. He was pronounced dead the following morning. Attitudes and Approach According to Brian (1996), Robert as a child was frequently the target of his father’s domineering temperament. However as he got older, he won the admiration of his father and brothers through his competitiveness. During his brother’s campaigns, Robert was more tenacious, passionate and involved than the candidate himself, aggressively tackling every detail and fighting every battle. How to cite A 20th Century Leader, Papers

Saturday, December 7, 2019

A Comparison between Two Novels free essay sample

The Central theme in â€Å"Reunion† (1962) by John Cheever and â€Å"Compass and Flashlight† (1992) by Elizabeth Barnes is the idea that society creates such high standard for parents that when one as expectation, they are often deceived. In â€Å"Reunion†, Charlie meets his dad full of expectation and ideas of what a good dad is, and how just by looking at him he wants to be like his father â€Å"I knew that when I was grown I would be something like him; I would have to plan my campaigns within his limitation.†(29) But then later in the story he gets to know his dad, and more and more he is deceived, and realises that he does not know his father, everything he was imagining where ideas created by society of what a father should be, act like and look like. In â€Å" Compass and Flashlight†, the boy goes on a camping trip with his father that he has not seen in a long time, like in â€Å"Reunion†, and the boy can’t understand why at the beginning his mom his judging him, and telling all sort of mean things about his father. We will write a custom essay sample on A Comparison between Two Novels or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page But towards the end, when he is talking, and the father is half-listening, we can see why the mom talked about him like that. The boy was not seeing his father like a man or a person, but rather he had the image that society created of a father in is mind, which created expectation that he could not meet. Both stories show how difficult it is sometimes to fit in the standards that society impose on us, and how nobody is perfect.