Biography of Philip Emeagwali, Computer Pioneer

Philip Emeagwali (born August 23, 1954) is a Nigerian-American computer scientist. He achieved distributed computing breakthroughs that helped lead to the development of the internet. His work with simultaneous calculations on connected microprocessors earned him a Gordon Bell Prize, considered the Nobel Prize of computing. Fast Facts: Philip Emeagwali Occupation: Computer scientistBorn: August 23, 1954 in Akure, NigeriaSpouse: Dale BrownChild: Ijeoma EmeagwaliKey Achievement: 1989 Gordon Bell Prize from the Institute of Electronics and Electrical EngineersNotable Quote: My focus is not on solving natures deeper mysteries. It is on using natures deeper mysteries to solve important societal problems. Early Life in Africa Born in Akure, a village in Nigeria, Philip Emeagwali was the oldest in a family of nine children. His family and neighbors considered him a prodigy because of his skills as a math student. His father spent a significant amount of time nurturing his sons education. By the time Emeagwali reached high school, his facility with numbers had earned him the nickname Calculus. Fifteen months after Emeagwalis high school education began, the Nigerian Civil War broke out, and his family, part of the Nigerian Igbo tribe, fled to the eastern part of the country. He found himself drafted into the army of the seceding state Biafra. Emeagwalis family lived in a refugee camp until the war ended in 1970. More than half a million of Biafrans died of starvation during the Nigerian Civil War. The Philip Emeagwali Family in 1962. Wikimedia Commons / Creative Commons 4.0 After the war ended, Philip Emeagwali doggedly continued to pursue his education. He attended school in Onitsha, Nigeria, and walked two hours to and from school each day. Unfortunately, he had to drop out due to financial problems. After continuing to study, he passed a high school equivalency exam administered by the University of London in 1973. The education efforts paid off when Emeagwali earned a scholarship to attend college in the U.S. College Education Philip Emeagwali traveled to the U.S. in 1974 to attend Oregon State University. Upon arrival, in the course of one week, he used a telephone, visited a library, and saw a computer for the first time. He earned his degree in mathematics in 1977. Later, he attended George Washington University to earn a Masters degree in Ocean and Marine Engineering. He also holds a second Masters from the University of Maryland in applied mathematics. While attending the University of Michigan on a doctoral fellowship in the 1980s, Emeagwali began work on a project to use computers to help identify untapped underground oil reservoirs. He grew up in Nigeria, an oil-rich country, and he was someone who both understood computers and how to drill for oil. Conflict over control of oil production was one of the critical causes of the Nigerian Civil War. Computing Achievements Initially, Philip Emeagwali worked on the oil discovery problem using a supercomputer. However, he decided it was more efficient to use thousands of widely distributed microprocessors to do his calculations instead of tying up eight expensive supercomputers. He discovered an unused computer at the Los Alamos National Laboratory formerly used to simulate nuclear explosions. It was dubbed the Connection Machine. Emeagwali began hooking up over 60,000 microprocessors. Ultimately, the Connection Machine, programmed remotely from Emeagwalis apartment in Ann Arbor, Michigan, ran more than 3.1 billion calculations per second and correctly identified the amount of oil in a simulated reservoir. The computing speed was faster than that achieved by a Cray supercomputer. Wikimedia Commons / Creative Commons 4.0 Describing his inspiration for the breakthrough, Emeagwali said that he remembered observing bees in nature. He saw their way of working together and communicating with each other was inherently more efficient than trying to accomplish tasks separately. He wanted to make computers emulate the construction and operation of a beehives honeycomb. Philip Emeagwalis primary achievement wasnt about oil. He demonstrated a practical and inexpensive way to allow computers to speak with each other and collaborate all around the world. The key to his achievement was programming each microprocessor to talk with six other neighboring microprocessors at the same time. The discovery ultimately helped lead toward the development of the internet. Legacy Emeagwalis work earned him the Institute of Electronics and Electrical Engineers Gordon Bell Prize in 1989, considered the Nobel Prize of computing. He continues to work on computing problems, including models to describe and predict the weather, and has earned more than one hundred honors for his breakthrough achievements. Emeagwali is one of the most prominent African-American inventors of the 20th century.

The Crucible By Arthur Miller - 1333 Words

It is necessary to have trust, loyalty, forgiveness, and honesty when living in a healthy community. But when people within the community begin to show betrayal, revenge, deceit, and suspicion, then the balance of the community is disrupted. In the Puritan community, they focused on doing God’s work by taking care of their neighbors and made sure to not be distracted by matters unrelated to God. Their extremely religious and simplistic lives isolated them from any disruption in the community. However, motivations of others led to the accusations of those in the community, which resulted in chaos. This occurred in the event known as the Salem Witch Trials, where twenty were executed and hundreds of others were accused. Arthur Miller, in his play, The Crucible, demonstrates how the thirst for revenge fuels the devastation of a community through the characters of Thomas Putnam, Ann Putnam, and Abigail Williams. Thomas Putnam was an influential citizen in Salem who was motivated by his greediness. His lack of inheritance from his father after a large portion of it went to his stepbrother and his well-qualified brother-in-law being denied for the minister position in Salem, turned him into a bitter man. Therefore, he shows no remorse during the Salem Witch Trials where he is seen throwing accusations about people and even including his daughter in blaming the innocent ones in the town. Putnam, in Act One, displays characteristics similar to his grandfather: claiming land that isShow MoreRelatedThe Crucible By Arthur Miller1269 Words   |  6 PagesAt first glance, the playwright Arthur Miller in The Crucible highlights the historical significance of the Salem Witch Trials of 1692, but in fact it is an allegorical expression of his perception of McCarthyism. If the reader has some background information on Arthur Miller’s victimization as a communist, it is evident that the play is a d idactic vessel illustrating the flaws of the court system in the 1950’s. The communist allegations were launched at government employees, entertainers and writersRead MoreThe Crucible By Arthur Miller1681 Words   |  7 Pagesof their way to the last dying breath to make sure they leave with a good or bad reputation. In one of the recent literature study in class â€Å"The Crucible† by Arthur Miller, Miller uses characterization to illustrate reputation throughout the play. â€Å"The Crucible† takes place in Salem, Massachusetts. It is based upon the Salem witch trails. In â€Å"The Crucible†, we journey through the life of three characters who reputations plays a major role in the play. The three characters are John Proctor, AbigailRead MoreThe Crucible By Arthur Miller998 Words   |  4 Pagesmotivated by jealousy and spite. The Crucible is a four-act dramatic play production that was first performed on January 22, 1953. Arthur Miller used dialogue within the characters to cover the multiple themes; conflicts and resolutions, plus the few directions for the different actions of the play. The Salem Witch Trials were intended to be performed as the play however, when read, it can be more carefully examined and broken down to analyze the techniques. Miller, the playwright, uses literaryRead MoreThe Crucible By Arthur Miller1333 Words   |  6 PagesAs the various characters in The Crucible by Arthur Miller interact, the dominant theme of the consequences of women’s nonconformity begins to slide out from behind the curtains of the play. Such a theme reveals the gripping fear that inundated the Puritans during the seventeenth century. This fear led to the famous witch-hunts that primarily terrorized women who deviated from the Puritan vision of absolute obedience and orthodoxy. Arthur Miller presents his interpretation of the suffering by subtlyRead MoreThe Crucible By Arthur Miller1145 Words   |  5 PagesUnbalance Through The Centuries In Arthur Miller’s play, The Crucible, the author reflects the persecution of communists in America in the 1950’s through a recount of the Salem witch trials. It is often presumed that Miller based his drama directly off of events that were particularly prevalent in the years surrounding the publication of The Crucible- which was released in the year 1953, towards the conclusion of the Korean War. Although there was not a literal witch hunt occurring during this timeRead MoreThe Crucible By Arthur Miller1063 Words   |  5 PagesIn the English dictionary, there are three definitions of the word crucible. One is a metal container in which metals are mixed and melted. Another is a severe test. But the third definition, and the one that I think fits the best for this book, is a place or situation in which different elements interact to create something new. In my mind, this fits because all of the characters had their little grudges and dirty secrets. But when all th ose seemingly little things interact, they formed somethingRead MoreThe Crucible By Arthur Miller1285 Words   |  6 Pages Rationale, Morality, Stereotypes, Pressure, Self-Censorship, Unanimity, and Mindguards. Groupthink has also taken place in our history a a country. The play, The Crucible by Arthur Miller is about a the real-life Salem Witch Trials that happened in 1692 - 1693, in Salem, Massachusetts. Some symptoms of Groupthink found in the Crucible are Rationale, Pressure, and Self-Censorship. The Groupthink symptom, Rationale, is described as when victims of Groupthink ignore warnings: they also collectivelyRead MoreThe Crucible By Arthur Miller811 Words   |  4 Pages While The Crucible, by Arthur Miller, is only a four act play, it still resembles the format of a five act play. The five-act structure evolved from a three-act structure, which was made famous by Roman Aelius Donatus. Donatus came up with three types of plays: Protasis, Epitasis, and Catastrophe. The five-act structure helped to expand the three act structure, mainly made famous by Shakespeare through his many tragedies. Even though The Crucible contains only four acts, it still has the commonRead MoreThe Crucible By Arthur Miller1052 Words   |  5 PagesBuddy Al-Aydi Ms.Healy English 9 CP 14th October 2014 The Crucible Essay The Crucible was a novel written by Arthur Miller in the 1950’s. It was written in a format of the play, portraying an allegory of the Salem Witch-Hunts led by Senator Joseph McCarthy. The book is known to have a inexplicable plot. This plot is advanced by multiple characters in the book in order to ensure that the reader maintains interest with the material that is being read. The farmer, John Proctor, would be theRead MoreThe Crucible By Arthur Miller841 Words   |  4 PagesThe Crucible is a chaotic play, throughout this American classic Arthur Miller takes the reader through multiple events of terror and insanity. While creating a great on-stage play, Arthur Miller portrays his life through the events, the characters, and plot of The Crucible. Using vivid imagery and comprehensible symbolism, Miller manipulates the real personalities of the characters and events in 1600 Salem, Massachusetts to create a symbolic autobiography. Throughout this play, the reader experie nces The Crucible By Arthur Miller - 1333 Words As the various characters in The Crucible by Arthur Miller interact, the dominant theme of the consequences of women’s nonconformity begins to slide out from behind the curtains of the play. Such a theme reveals the gripping fear that inundated the Puritans during the seventeenth century. This fear led to the famous witch-hunts that primarily terrorized women who deviated from the Puritan vision of absolute obedience and orthodoxy. Arthur Miller presents his interpretation of the suffering by subtly introducing women who strayed from convention and paid the consequences. Throughout The Crucible, Arthur Miller delineates the historically austere Puritans’ perception and punition of women who differ from expectations, all while unraveling, through the characterization of Tituba, the harsh truth of how women were vided as lesser than men and feared if deviating. In the play, the pugnacious actions of the accusers on those accused of witchcraft unveil the conspicuous belief s that buttress all actions regarding witchcraft. The accusers in the Salem court feign hysteria as they are aware of the potency of Sarah Good, Tituba, and many of the other accused witches (Miller 1209, Tunc Web). The display of pain is an attempt to create the impression that the Sarah and Tituba are infecting the â€Å"normal† girls (Tunc Web). Such hysteria allows Abigail to avoid allegations when she accuses Tituba and others of serving the Devil (Tunc Web, Miller 1154). According to Tanfer Tunc, in theShow MoreRelatedThe Crucible By Arthur Miller1269 Words   |  6 PagesAt first glance, the playwright Arthur Miller in The Crucible highlights the historical significance of the Salem Witch Trials of 1692, but in fact it is an allegorical expression of his perception of McCarthyism. If the reader has some background information on Arthur Miller’s victimization as a communist, it is evident that the play is a didactic vessel illustrating the flaws of the court sy stem in the 1950’s. The communist allegations were launched at government employees, entertainers and writersRead MoreThe Crucible By Arthur Miller1681 Words   |  7 Pagesof their way to the last dying breath to make sure they leave with a good or bad reputation. In one of the recent literature study in class â€Å"The Crucible† by Arthur Miller, Miller uses characterization to illustrate reputation throughout the play. â€Å"The Crucible† takes place in Salem, Massachusetts. It is based upon the Salem witch trails. In â€Å"The Crucible†, we journey through the life of three characters who reputations plays a major role in the play. The three characters are John Proctor, AbigailRead MoreThe Crucible By Arthur Miller998 Words   |  4 Pagesmotivated by jealousy and spite. The Crucible is a four-act dramatic play production that was first performed on January 22, 1953. Arthur Miller used dialogue within the characters to cover the multiple themes; conflicts and resolutions, plus the few directions for the different actions of the play. The Salem Witch Trials were intended to be performed as the play however, when read, it can be more carefully examined and broken down to analyze the techniques. Miller, the playwright, uses literaryRead MoreThe Crucible By Arthur Miller1145 Words   |  5 PagesUnbalance Through The Centuries In Arthur Miller’s play, The Crucible, the author reflects the persecution of communists in America in the 1950’s through a recount of the Salem witch trials. It is often presumed that Miller based his drama directly off of events that were particularly prevalent in the years surrounding the publication of The Crucible- which was released in the year 1953, towards the conclusion of the Korean War. Although there was not a literal witch hunt occurring during this timeRead MoreThe Crucible By Arthur Miller1063 Words   |  5 PagesIn the English dictionary, there are three definitions of the word crucible. One is a metal container in which metals are mixed and melted. Another is a severe test. But the third definition, and the one that I think fits the best for this book, is a place or situation in which different elements interact to create something new. In my mind, this fits because all of the characters had their little grudges and dirty secrets. But when all th ose seemingly little things interact, they formed somethingRead MoreThe Crucible By Arthur Miller1285 Words   |  6 Pages Rationale, Morality, Stereotypes, Pressure, Self-Censorship, Unanimity, and Mindguards. Groupthink has also taken place in our history a a country. The play, The Crucible by Arthur Miller is about a the real-life Salem Witch Trials that happened in 1692 - 1693, in Salem, Massachusetts. Some symptoms of Groupthink found in the Crucible are Rationale, Pressure, and Self-Censorship. The Groupthink symptom, Rationale, is described as when victims of Groupthink ignore warnings: they also collectivelyRead MoreThe Crucible By Arthur Miller811 Words   |  4 Pages While The Crucible, by Arthur Miller, is only a four act play, it still resembles the format of a five act play. The five-act structure evolved from a three-act structure, which was made famous by Roman Aelius Donatus. Donatus came up with three types of plays: Protasis, Epitasis, and Catastrophe. The five-act structure helped to expand the three act structure, mainly made famous by Shakespeare through his many tragedies. Even though The Crucible contains only four acts, it still has the commonRead MoreThe Crucible By Arthur Miller1052 Words   |  5 PagesBuddy Al-Aydi Ms.Healy English 9 CP 14th October 2014 The Crucible Essay The Crucible was a novel written by Arthur Miller in the 1950’s. It was written in a format of the play, portraying an allegory of the Salem Witch-Hunts led by Senator Joseph McCarthy. The book is known to have a inexplicable plot. This plot is advanced by multiple characters in the book in order to ensure that the reader maintains interest with the material that is being read. The farmer, John Proctor, would be theRead MoreThe Crucible By Arthur Miller841 Words   |  4 PagesThe Crucible is a chaotic play, throughout this American classic Arthur Miller takes the reader through multiple events of terror and insanity. While creating a great on-stage play, Arthur Miller portrays his life through the events, the characters, and plot of The Crucible. Using vivid imagery and comprehensible symbolism, Miller manipulates the real personalities of the characters and events in 1600 Salem, Massachusetts to create a symbolic autobiography. Throughout this play, the reader experie ncesRead MoreThe Crucible by Arthur Miller1085 Words   |  5 Pagesopposes the will of the majority is a recurring feature of drama.† Identify such a conflict in a non-Shakespearean play you have studied and show how the dramatist deals with the implications for both the character and the society. Arthur Miller in ‘The Crucible,’ deals with the internal/external conflicts of protagonist John Proctor, during the witch trials of Salem; showing the effects of â€Å"an individual opposed to the will of the majority.† Through the mass hysteria caused by Abigail, corruption

Microbial Examination of Meat

Question: Discuss about theMicrobial Examination of Meat. Answer: Introduction Many genera of molds grow on meat surface which causes spoilage. They can grow on meat which is stored below five degrees centigrade. The freshly cut meat in the refrigerator at extremely high humidity undergoes bacterial spoilage. The extrinsic and intrinsic parameters of ground beef favor bacterial growth. The spoilage of meat is characterized by the appearance of off odors and slime. This is indicated at a point when surface load exceeds 107 CFU/cm2. The slime is as a result of bacterial cell accumulation. The spoilage of meat occurs in the absence of substantial decomposition of structure of primary protein. The spoilage bacteria use glucose, free amino acids, and other simple nitrogenous compound to acquire a population of around 108 CFU/cm2. This is the point at which meat organoleptic quality will precisely reveal that the meat is spoilt (Nychas et al. 2012). The microorganisms like mold and bacteria present in meat cause the breakdown of fats and proteins which spoil the meat. After the death of an animal, cells in meat begin to decompose without being substituted by newfangled cells. Accordingly, meat becomes spoilt in the absence of proper storage. Chemicals in it gradually decline to a level at which meat becomes flabby to be consumed. Exposure to light and heat speed up the decomposition. The bacteria initially present in animals flesh before it died or those that invade it after death will be the agents for spoilage. The rotten, sulfurize and sour odor shows that bacterial colony has hit dangerous heights (Koutsoumanis et al. 2013). Mold like warm or moist places with a lot of sources of food like meat that makes a great dwelling for a mold colony. The mold spread over the meat surface in fuzzy or colorful patches which alter the texture and taste of meat in a manner which most people find unsafe or regarded spoiled. Various types of pathogenic microorganism grow on meat including Bacillus, Staph, salmonella, clostridium, yeast and molds, E.coli. These microorganisms infect meat even during processing, cutting, packaging, transportation, sales, and handling. Other bacteria include: B. proteus Faecal streptococci S. epidermis Shigella spp. Cl. Welchil They are carried by humans, and those infectious ones from soil include Cl. Botulinum. On the other hand, the conventional mold infecting meat include: Penicillium Mucor Cladosporium Alternaria Thamnidium Sporotrichium The above microorganisms colonize meat and start to break the piece down. In the process, the toxins that cause enteritis are left behind which are lethal in the case of botulism. These microorganisms can affect an animal as an endogenous disease (alive animal) or exogenous disease (contaminating the meet after butchered) (Borch, Kant-Muermans and Blixt 2011). Care has to be taken after slaughter to avoid infection of meat via contact with various sources of infection. Various tests during production and processing of meat can help detect the presence of these infectious microorganisms. References Borch, E., Kant-Muermans, M.L. and Blixt, Y., 2011. Bacterial spoilage of meat and cured meat products. International journal of food microbiology, 33(1), pp.103-120. https://www.sciencedirect.com/science/article/pii/016816059601135X Koutsoumanis, K., Stamatiou, A., Skandamis, P. and Nychas, G.J., 2013. Development of a microbial model for the combined effect of temperature and pH on spoilage of ground meat, and validation of the model under dynamic temperature conditions. Applied and Environmental Microbiology, 72(1), pp.124-134. https://aem.asm.org/content/72/1/124.full.pdf+html Nychas, G.J.E., Skandamis, P.N., Tassou, C.C. and Koutsoumanis, K.P., 2012. Meat spoilage during distribution. Meat science, 78(1), pp.77-89. https://www.researchgate.net/profile/Chrysoula_Tassou/publication/51776279_Meat_spoilage_during_distribution/links/09e415005712d75ff6000000/Meat-spoilage-during-distribution.pdf