Monday, December 23, 2019
Decisions For War By Richard Hamilton And Holger Herwig
Decisions for War, 1914-1917 by Richard Hamilton and Holger Herwig investigates the origins of the First World War detailing individual countryââ¬â¢s reasons for entering the war. Historians at War by Anthony Adamthwaite explores how scholars have understood the origins of the Second World War throughout varying times and differing national view points. Both works share a common theme of determinism; a retrospective notion placed on historical events by historians that Europe was inescapably predestined to go to war and that nothing nor anyone could inhibit that. Both remark that this popular approach does a disservice into the explanation of war as it does not accurately depict the economic and social agency present in Europe at the time. Inâ⬠¦show more contentâ⬠¦HH reject the clichà © thesis of a ââ¬Å"slide into warâ⬠as elites had the agency to declare war. War does not simply happen; there is a strict procedure of declarations that cannot materialize out of no where. Because people have agency they have the authority to decide on their future. In the sense of war, this means they have the choice to either participate or not. HH argue that there was no inevitability of war since formal declarations would need to be drawn up by some individuals. For example, ââ¬Å"Austria-Hungary declared war on Serbia on 28 July 1914.â⬠Commonly believed to have been inspired by the recent assassination HH contend that the declaration of war was nevertheless ââ¬Å"the end result of a careful, well thought out, and rational process.â⬠Moreover, the assassination was not the only reason for war but rather an interest in a fragmentation of the Balkans. Whatever the case, this rational process dismisses a fatalism of war in Europe as Austria-Hungary ultimately chose to go to war. This process is mirrored in the other four major powers; Germany, Russia, France, and Great Britain demonstrating that they too had agency when declaring war. Expanding upon this further, HH investigate whether or not the deterministic idea that countries were pushed into war by a general enthusiasm from the public by documenting newspaper sources. Traditionally believed, nationalism became overwhelming for the elites who could not resistShow MoreRelatedTo What Extent Did Public Opinion Shape International Politics in the First Half of the Twentieth Centuryââ¬â¢?1632 Words à |à 7 Pages Student Number: Submission: Word count: 1,617 words approximately The first half of the twentieth century was indeed a time in history in which things such as two of the most deadly wars, the Russian Revolution, the Great Depression, the foundation of the UN and the start of the Cold War took place. But, were these events at any point influenced by the views expressed by citizens?. This essay is going to discuss public opinion during the first half of the twentieth century. To do
Sunday, December 15, 2019
Deception Point Page 89 Free Essays
Gabrielle knew Sexton was eagerly awaiting her arrival for a complete rundown on the PODS situation. Unfortunately, she also now realized that Sexton had deftly manipulated her tonight. Gabrielle Ashe did not like being managed. We will write a custom essay sample on Deception Point Page 89 or any similar topic only for you Order Now The senator had kept things from her tonight. The question was how much. The answers, she knew, lay inside his office-just on the other side of this restroom wall. ââ¬Å"Five minutes,â⬠Gabrielle said aloud, mustering her resolve. Moving toward the bathroomââ¬â¢s supply closet, she reached up and ran a hand over the door frame. A key clattered to the floor. The cleaning crews at Philip A. Hart were federal employees and seemed to evaporate every time there was a strike of any sort, leaving this bathroom without toilet paper and tampons for weeks at a time. The women of Sextonââ¬â¢s office, tired of being caught with their pants down, had taken matters into their own hands and secured a supply room key for ââ¬Å"emergencies.â⬠Tonight qualifies, she thought. She opened the closet. The interior was cramped, packed with cleansers, mops, and shelves of paper supplies. A month ago, Gabrielle had been searching for paper towels when sheââ¬â¢d made an unusual discovery. Unable to reach the paper off the top shelf, sheââ¬â¢d used the end of a broom to coax a roll to fall. In the process, sheââ¬â¢d knocked out a ceiling tile. When she climbed up to replace the tile, she was surprised to hear Senator Sextonââ¬â¢s voice. Crystal clear. From the echo, she realized the senator was talking to himself while in his officeââ¬â¢s private bathroom, which apparently was separated from this supply closet by nothing more than removable, fiberboard ceiling tiles. Now, back in the closet tonight for far more than toilet paper, Gabrielle kicked off her shoes, climbed up the shelves, popped out the fiberboard ceiling tile, and pulled herself up. So much for national security, she thought, wondering how many state and federal laws she was about to break. Lowering herself through the ceiling of Sextonââ¬â¢s private restroom, Gabrielle placed her stockinged feet on his cold, porcelain sink and then dropped to the floor. Holding her breath, she exited into Sextonââ¬â¢s private office. His oriental carpets felt soft and warm. 107 Thirty miles away, a black Kiowa gunship chopper tore over the scrub pine treetops of northern Delaware. Delta-One checked the coordinates locked in the auto navigation system. Although Rachelââ¬â¢s shipboard transmission device and Pickeringââ¬â¢s cellphone were encrypted to protect the contents of their communication, intercepting content had not been the goal when the Delta Force pulse-snitched Rachelââ¬â¢s call from sea. Intercepting the callerââ¬â¢s position had been the goal. Global Positioning Systems and computerized triangulation made pinpointing transmission coordinates a significantly easier task than decrypting the actual content of the call. Delta-One was always amused to think that most cellphone users had no idea that every time they made a call, a government listening post, if so inclined, could detect their position to within ten feet anywhere on earth-a small hitch the cellphone companies failed to advertise. Tonight, once the Delta Force had gained access to the reception frequencies of William Pickeringââ¬â¢s cellular phone, they could easily trace the coordinates of his incoming calls. Flying now on a direct course toward their target, Delta-One closed to within twenty miles. ââ¬Å"Umbrella primed?â⬠he asked, turning to Delta-Two, who was manning the radar and weapons system. ââ¬Å"Affirmative. Awaiting five-mile range.â⬠Five miles, Delta-One thought. He had to fly this bird well within his targetââ¬â¢s radar scopes to get within range to use the Kiowaââ¬â¢s weapons systems. He had little doubt that someone onboard the Goya was nervously watching the skies, and because the Delta Forceââ¬â¢s current task was to eliminate the target without giving them a chance to radio for help, Delta-One now had to advance on his prey without alarming them. At fifteen miles out, still safely out of radar range, Delta-One abruptly turned the Kiowa thirty-five degrees off course to the west. He climbed to three thousand feet-small airplane range-and adjusted his speed to 110 knots. On the deck of the Goya, the Coast Guard helicopterââ¬â¢s radar scope beeped once as a new contact entered the ten-mile perimeter. The pilot sat up, studying the screen. The contact appeared to be a small cargo plane headed west up the coast. Probably for Newark. Although this planeââ¬â¢s current trajectory would bring it within four miles of the Goya, the flight path obviously was a matter of chance. Nonetheless, being vigilant, the Coast Guard pilot watched the blinking dot trace a slow-moving 110-knot line across the right side of his scope. At its closest point, the plane was about four miles west. As expected, the plane kept moving-heading away from them now. 4.1 miles. 4.2 miles. The pilot exhaled, relaxing. And then the strangest thing happened. ââ¬Å"Umbrella now engaged,â⬠Delta-Two called out, giving the thumbs-up from his weapons control seat on the port side of the Kiowa gunship. ââ¬Å"Barrage, modulated noise, and cover pulse are all activated and locked.â⬠Delta-One took his cue and banked hard to the right, putting the craft on a direct course with the Goya. This maneuver would be invisible to the shipââ¬â¢s radar. ââ¬Å"Sure beats bales of tinfoil!â⬠Delta-Two called out. Delta-One agreed. Radar jamming had been invented in WWII when a savvy British airman began throwing bales of hay wrapped in tinfoil out of his plane while on bombing runs. The Germansââ¬â¢ radar spotted so many reflective contacts they had no idea what to shoot. The techniques had been improved on substantially since then. The Kiowaââ¬â¢s onboard ââ¬Å"umbrellaâ⬠radar-jamming system was one of the militaryââ¬â¢s most deadly electronic combat weapons. By broadcasting an umbrella of background noise into the atmosphere above a given set of surface coordinates, the Kiowa could erase the eyes, ears, and voice of their target. Moments ago, all radar screens aboard the Goya had most certainly gone blank. By the time the crew realized they needed to call for help, they would be unable to transmit. On a ship, all communications were radio-or microwave-based-no solid phone lines. If the Kiowa got close enough, all of the Goyaââ¬â¢s communications systems would stop functioning, their carrier signals blotted out by the invisible cloud of thermal noise broadcast in front of the Kiowa like a blinding headlight. Perfect isolation, Delta-One thought. They have no defenses. Their targets had made a fortunate and cunning escape from the Milne Ice Shelf, but it would not be repeated. In choosing to leave shore, Rachel Sexton and Michael Tolland had chosen poorly. It would be the last bad decision they ever made. Inside the White House, Zach Herney felt dazed as he sat up in bed holding the telephone receiver. ââ¬Å"Now? Ekstrom wants to speak to me now?â⬠Herney squinted again at the bedside clock. 3:17 A.M. ââ¬Å"Yes, Mr. President,â⬠the communications officer said. ââ¬Å"He says itââ¬â¢s an emergency.â⬠108 While Corky and Xavia huddled over the electron microprobe measuring the zirconium content in the chondrules, Rachel followed Tolland across the lab into an adjoining room. Here Tolland turned on another computer. Apparently the oceanographer had one more thing he wanted to check. As the computer powered up, Tolland turned to Rachel, his mouth poised as if he wanted to say something. He paused. ââ¬Å"What is it?â⬠Rachel asked, surprised how physically drawn to him she felt, even in the midst of all this chaos. She wished she could block it all out and be with him-just for a minute. ââ¬Å"I owe you an apology,â⬠Tolland said, looking remorseful. ââ¬Å"For what?â⬠ââ¬Å"On the deck? The hammerheads? I was excited. Sometimes I forget how frightening the ocean can be to a lot of people.â⬠How to cite Deception Point Page 89, Essay examples
Saturday, December 7, 2019
Network Security and Cryptography Secure Data Storage and Transfer
Question: Prepare a report on data storage, data transfer, user authentication and network monitoring? Answer: Introduction In this report the existing network of Your Events will be analyzed from the information security viewpoint. There will be security planning for data storage, transmission etc. over the Intranet and Internet, use of different kind of authentication methods for different categories of users. Secure Data Storage and Transfer Currently, the company manages an Intranet, a central data center and related IT infrastructure for their business. They have geographically separated offices at four large cities and the head quarter is in London. At head headquarter, there is a data center for the company. There are file, print and mail servers. The sales staffs sell tickets via telephone and there is a website for the company also. Customers can purchase tickets from the website. Thus there will be transaction of customers personal information, credit card information etc. moreover, the company stores all these information at their web server. There is a backup of these data from web server to the file server. File server data are accessed for accounting activities. Now, the company collects, stores and processes huge amount of personal data and credit card information from the customers. It is the sole responsibility of the company to ensure the privacy of those data when stores and processed by the company. Also there are data protection issues. These data must be protected from all kind of misuse, unauthorized access, damage, modification etc. The security planning for ensuring secure storage and transfer of data are given as, The company should expand its network a bit. It should redesign the architecture of data storage. The web server should be dedicated for website related activities. It handled transactions from customers directly and deals with all web traffic directly. This is not a secure approach. There should be some firewall and proxy server for protecting the web server. Because, in current scenario, the web server contains sensitive credit card information and personal data from the customers. If there is some attack on the web server, then these data will be at risk. Thus there should be some proxy server to deal with all traffic. Firewall will be installed on the proxy server to monitor the traffic. (Arregoces Portolani, 2003) If possible then the company should refrain from storing credit card information of its customers. These are sensitive data and does not help in any business related work or decision making. Storage of such information adds more security issues to the company. Thus, it should not be stored permanently in the servers of the company. There should be proper backup and recovery management process. Instead of keeping back up of data from web server to file server, the company should adopt some proper backup and recovery management. This recovery management policies and infrastructure will save the company from disasters and potential data losses in the face of some fatal security attacks or natural calamities. (Harrington, 2005) While transmitting data from one center to another, there are chances of security attacks like spoofing, eavesdropping and other kind of man in the middle attacks on those data. The company should use proper encryption, decryption of those data while transmitting those. Another alternative is building some VPN or Virtual Private Network connecting all business sites. There should be proper tunneling methods for this infrastructure. (Stewart, 2013) Insider attack is a risk for the data center at head office. The data center itself should be protected. There should be restrictions on entry to the data center and operating on the data center. There should be proper user authentication techniques. The company uses several secure payment gateways for collecting payments from the customers. There are several rules, regulations and best practices to implement and use such platforms and online payment system. The company should confirm to those. Use Authentication There are different kinds of users who interacts with the IT infrastructure, information systems and website of the company. There are visitors and customers who visits the company website, makes ticket purchase over online platform. There are the sales staffs who access the system, checks status of tickets and books tickets on the behalf of the customers who purchases tickets via telephone. There are accounting staffs who access transactional information and file server, to carry on different accounting operation. However, there is lack of proper access control in the current scenario. For example, the data from web server is stored at the file server as a backup. And from there accounting staffs access those data. The backed up data includes personal data of the customers and information such as credit card information. Now, these data will not be needed for accounting. Accounting will need access to the transactional, sales, procurement, payroll etc. related data. In fact, the credit card data will not be required by the business or any other staffs. So, there should be different levels of access control and proper user authentication techniques before granting requests for accessing sensitive business, customer and customers credit card data. The access control and authentication techniques should be, For sales staff there should be limited access to the system. They will not be able to see credit card information or personal information about the customers. Also they wont be able to access accounting or other critical business data. The authentication process can be based on username password along with some CAPTCHA or security question. For accounting staffs they access more sensitive business information, thus there should be more degree of authentication. There should be biometric based authentication process. While purchasing tickets, or logging in users on the website should be asked to follow some authentication process. It may be similar to the authentication process for sales staff. There should be biometric based authentication while entering and working on data centers. All these authentication will save from unauthorized access to sensitive business data. It will also ensure availability of data to legitimate users. (Apelbaum, 2007) For transmitting data between offices, a secure private VPN channel should be created. It will build a private network for the company over the public Internet. The systems across the business sites will be able to connect to the VPN and can data securely and privately across the VPN channel. There are several benefits of using VPN in terms of security, functionality and management of the network. There will be virtual point to point connections between the systems. Also there will be virtual tunneling protocol for more secured infrastructure. The tunneling process will also help to encrypt the traffic or data transmission across the VPN. The implementation can use technologies like IPSec or OpenVPN. (Snader, 2006) For securing the data transmission from customers or user of the website over the Internet, the company needs to implement security control and implementation like SSL or Secure Socket Layer, HTTPS, Digital certificates, secure payment gateways etc. All transaction at the website will be done through SSL or HTTPS. It will help to transfer information like credit card information securely over the Internet. (Stallings, 2006) There are two cryptographic keys used in SSL. The public key is used by every customer for encrypting their data, on the other hand, the company will use a secret private key for decrypting the encrypted text. SSL creates a secure connection between client and server. On the other hand, HTTPS sends each message from user to the receiver securely. Thus SSL and HTTPS are complementary to one another. (Ciampa, 2011) The company can use digital signatures and use the same for sending any message to the customers or staffs. This will ensure that the company is sending the message, not any other person. This will help to ensure the identity of the company to its customer. For example, after sharing a credit card details, the customer need to be sure that whether the details have been reached to the company or not. The acknowledgment message and digital certificate from the company will help to ensure that. Even is worse cases, if the credit card information have been stolen from midway and used by any other attacker, then the company can prove that. Because the attacker can disguise as the company but wont have the digital certificate. (Speciner, et al., 2002) There are other kind of security mechanism for data transmission over the network for example PKI or Public Key Infrastructure. This also helps in securing data transmission over the Internet. There is also a pair of encryption keys and digital certificates. But PKI is basically used for email encryption. As the company does not use email based communication with their customers, so this technique is not very much applicable for them. (Ciampa, 2011) Vulnerability can be there in any information system or information technology infrastructure. Identification and safeguarding the vulnerabilities is a part of securing the network. It needs a constant monitoring process. There are various benefits from these vulnerability monitoring and scanning processes. Some of the benefits are, It protects the network by conducting comprehensive network monitoring and scanning. It updates the IT resources whenever needed. And the process is automated. It helps in IT auditing and reporting about the unmatched cases. The cost for data protection is reduced. There are lots of automated tools and techniques to make the network secure from hackers. Also there are different types of vulnerability scans. Vulnerabilities can come from the network of the customer or from Internet. There can be External and Internal scans that refers to scanning of private ports and LAN of the customer respectively. On the other hand there is range scanning for all external ports of a system. It checks all well-known ports, unused IP addresses etc. and finds if there is any exploitation of the vulnerabilities. (Manzuik, et al., 2006) Comments The processes, techniques etc. discussed in the report will help the company to make their current infrastructure secure for present and future. While preparing the report, it helped to learn about the networks and IT infrastructures used by the organizations, what are the different kind of threats faced by these organizations etc. Along with that, it helped to understand different countermeasures for the security risks, how those can be mitigated etc. References Apelbaum, Y., 2007. User Authentication Principles, Theory and Practice. s.l.:Fuji Technology Press. Arregoces, M. Portolani, M., 2003. Data Center Fundamentals. s.l.:Cisco Press. Ciampa, M., 2011. Security+ Guide to Network Security Fundamentals. s.l.:Cengage Learning. Harrington, J. L., 2005. Network Security: A Practical Approach. s.l.:Elsevier. Manzuik, S., Pfeil, K. Gold, A., 2006. Network Security Assessment: From Vulnerability to Patch. s.l.:Syngress. Snader, 2006. VPNs Illustrated: Tunnels, VPNs, And IPSec. s.l.:Pearson. Speciner, M., Perlman, R. Kaufman, C., 2002. Network Security. 2nd ed. s.l.:Pearson . Stallings, W., 2006. Cryptography And Network Security. 4th ed. s.l.:Pearson . Stewart, J. M., 2013. Network Security, Firewalls and VPNs. 2nd ed. s.l.:Jones Bartlett Publishers. Tipton, H. F. Krause, M., 2007. Information Security Management Handbook. 6th ed. s.l.:CRC Press.
Saturday, November 30, 2019
Pluto Essays - Planetary Science, Pluto, Neptune, Ice Planet
Pluto Pluto repeats an anomaly when compared with the terrestrial planets (Mercury, Venus, the Earth and Mars) or the giant planets (Jupiter, Saturn, Uranus and Neptune). This icy world is more like a huge asteroid or the satellites of the outer planets; it has even been suggested that Pluto was a satellite that escaped from Neptune's pull. The small size of Pluto combined with its distance make it very difficult to observe; however, two important discoveries have just been made. In 1976 new spectroscopic observations revealed that the surface of Pluto was covered, at least partially, by frozen methane. The infrared spectrum enabled this methane to be identified, besides other kinds of ice, such as ice of ammonia or water. The surface of Pluto, covered by ice, is therefore bright and its reflective power (or albedo) is much greater than we would suppose, thinking that it was all covered by rocks. Knowing its distance from the Earth and its reflection coefficient we can deduce a diameter of between 2000 and 2700 kilometers; its mass is thus much less than first estimates.
Monday, November 25, 2019
Great Gatsby2 essays
Great Gatsby2 essays The more things change, the more they stay the same "The Times They are a-Changin'," or so 60's singer/songwriter Bob Dylan thought. But have we really matured enough as people to say that racism and prejudice are no longer words in the English vocabulary? Most people like to think so, but the facts paint a different picture. The novel, The Great Gatsby, by F. Scott Fitzgerald can be used to illustrate these points. In the mid-20's, when American author F. Scott Fitzgerald wrote The Great Gatsby, it was common to use words to describe African American people that today would be seen as offensive and degrading. Mainly the sole purpose of using such words were to depict African Americans as objects, not human beings. When Nick describes the "two Bucks" and a Negro girl passing them in a horse-drawn carriage with a white chauffeur he thinks to himself "Anything can happen now that we've slid over this bridgeÃ
anything at allÃ
" This shows how people in Fitzgerald's time reacted to free black families. Nick describes the black males as "Bucks" because that's the name people used when they auctioned them off as slaves. He couldn't just refer to them as "men" or "gentlemen" because it was inappropriate to give blacks a high status. Throughout the novel discussing the downfall of the white race is a common topic. Tom and Daisy share thoughts about the downfall over dinner and Tom states that "If we don't look out the white race will be-will be utterly submerged," and Daisy follows that comment up with "We've got to beat them (minorities) down." Because nobody looks the same and because people fear anything different, they had no choice but to fear minorities. If you were not wealthy and white, you were feared. But racism wasn't the only degrading thing in the book; characters spoke condescendingly about people's financial status as well. If you lived in East Egg, you were wealthy and glamorous. If you lived in West Eg ...
Friday, November 22, 2019
A Critical Review Of Che Guevaras The Motorcycle Diaries
A Critical Review Of Che Guevara's The Motorcycle Diaries ââ¬Å"The Motorcycle Diariesâ⬠is a story of an eight thousand mile trip that begins from Argentina to Peru. The trip involves two people; Ernesto Guevara and his friend, Alberto Granado, whom they travel together using a motorcycle as they pass through different countries with different landscapes. The young men are on a duty to explore the different parts of the world they had never visited before. The quest of the adventurers in the movie is to see the things they had only read from books about the continent on which they live, more so the physical landscapes of different regions. The Change in Physical Landscapes The physical landscapes change as Ernesto and Alberto travel from Argentina to Chile, and to Peru. The two travel through five different countries starting with Argentina. They pass through the mountains, for example, the Andes where they had to endure very low temperatures. Initially, they travelled through a landscape where the sun shined, and the land was quite warm before they reached Chile, a land full of snow. Ernesto and Alberto also travelled through the Pampas; very large and fertile pieces of land. While in Peru, the two went through the Lowlands and the Tropical rainforest. While in Columbia, they came across part of the Andes Mountain. The terrain in Columbia was also mountainous as in Chile. There was no difference for Alberto and Ernesto in Venezuela, which was the last country they travelled through. The country also had a lot of mountains, with the climate being the tropical type. The change in physical landscapes during the journey involving Alberto and Ernesto is evident when their motorcycle turns over a number of times during the trip. In different occasions, the motorcycle skids out from under the two and even land into a ditch. The mountainous terrain and the lowlands could have been the cause of the turning of the motorcycle. Cultural Differences Encountered by Ernesto and Alberto While travelling, Alberto and Ernesto encounter cultural differences as they travel through the region. Firstly, the two come to the realization that the official language spoken by the people in the area they are going through is Spanish. Even the Indians in Chile speak Spanish. Besides, Alberto and Ernesto encounter a culture where strangers are warmly welcomed without fear. For instance, In Chile, the Mesties and the Indians are both very social, and they are willing to make available foodstuff, clothes, and a sleeping place to the strangers. It is in the culture of the people of Chile to wear Chamants; a type of clothing that look like ponchos with lots of colors. In Peru, they encounter a group of people who still practice the ancient cultures. The people in an old city called Machu Pichu, for instance believe in the preservation of cultures. Alberto and Ernesto realize that the city is still very old fashioned, and far behind a lot of things. In Columbia, the two notice that it is in the culture of the nation to practice Roman-Catholic faith. In Venezuela, there are different types of religions including the Indian religion and Christianity. The Change of Mind for Alberto and Ernesto In the movie, Ernesto and Alberto seem to come from an economically stable community that does not value the lives of others who are poor. As they travel, they are surprised by the poverty levels in most of the countries. They also get amazed by the social nature of the inhabitants of the countries they travel through. They notice the alarming difference between the rich and the poor, a situation that does not seem to be in existence in their home country. Alberto and Ernesto encounters a type of life that makes them change their minds about the world. It is during their journey that they realize that there are people who are very poor and engage in different religions. The different landscapes they go through also make them change their views on the physical nature of the world. The two adventurers notice that the people who have almost nothing possess the virtue of sharing whatever little they possess. Alberto and Ernesto learn to care about others and through that, they change their social and economic aspects. The change in mind is evident when Ernesto, under the name Che Guevara, would later go on to become a world-renowned communist revolutionary. He played a vital role in Cuba in 1959 during the communist revolution. Geographical Imagination of Latin America The film reinstated my geographical imagination of Latin America given that some of the regions visited by Alberto and Ernesto have the natural resources I ever imagined. The two adventurers visited Chuquicamata Copper mine that I did not have a clear idea of its Location. It is apparently Chileââ¬â¢s source of wealth. My imagination of the varied terrain in Latin America was proved to be true by Alberto and Ernesto, who travelled through mountainous terrains and lowlands in the region. In conclusion, the film is an incredible drama that hopefully is a lesson to viewers. The experience Alberto and Ernesto go through changes their lives, and more lives may be changed by the film, as it happened to Ernesto; an iconic communist revolutionary.
Wednesday, November 20, 2019
Kidney Failure Scenarios Essay Example | Topics and Well Written Essays - 250 words
Kidney Failure Scenarios - Essay Example Lack of insulin leads to the high sugar levels in the kidney and therefore, the body tries to balance such high levels of sugar by retaining large amounts of water in the body, hence low output of urine. This causes the kidney disease. Since her case seems to be in the early stages, the best option is to undergo treatment for renal dysfunction (Stein, 2007) A Mr. Hodges kidney is affecting the rest of his body because it is associated with heart failure. The poor circulatory function retains a lot of wastes and other toxins that then affect the other body parts. The heart is what controls all our body parts by supplying it with blood and oxygen. Therefore, other body parts are likely to be affected when one suffers from congestive heart failure. As his renal failure worsens, other symptoms and signs that might occur are high urine levels in blood, nocturnal urination, abnormal heart rhythms, memory problems, difficulties in breathing, and slowed digestive process ((Amgen, 2009). Mr. Hodges kidney disease is being caused by prolonged and uncontrolled hypertension. The best treatment option for Mr. Hodges is a complete kidney transplant (Stein, 2007) since it happens to be either in stage four or five (Fadem, (2008). However, it is difficult to find a donor, besides ensuring the compatibility of the kidney with his
Tuesday, November 19, 2019
Editi a paper Essay Example | Topics and Well Written Essays - 250 words
Editi a paper - Essay Example there are many jobs that require a bilingual employee. Hence there is a huge demand as well as market for bilingual or multilingual people who can easily be employed in such organizations. A person who speaks two languages or more has more opportunities to find a job easily. There are also many other benefits of being a bilingual. As for my experience as a bilingual, I would say I am so luck for being so. As a bilingual, I have come across various incidences which point towards the significance of knowing more than one language. I have learnt many things from reading and interacting in my second language ââ¬Å"Englishâ⬠. My knowledge in English, as a second language has helped me in my career as well as various other aspects of my life. Before learning a second language, my reading and interacting were limited to my first language ââ¬Å"Arabic". The various interactions I had through reading and writing far exceeded the experience I gained through interaction in my first language ââ¬â ââ¬Å"Arabicâ⬠. When I decided to join the foreign language program, I have not imagined that I would benefit so muchà from learning a second language. Prior to enrolling in a foreign language program, my experiences were limited in nature; however my scope was widened post learning the second language. After graduating as an English major, I was presented with endless opportunities to explore however I decided to be an English teacher whereas I can choose another job but I prefer to be a teacher. After enrolling in this Master program, I realized how very important to be the true significance of being a bilingual is and used this opportunity to teach educate bilingual or even multilingual students. The issue of ââ¬Å"Bilingualismâ⬠is very important of utmost significance not only for bilinguals but it is also in other equally relevant fields such as important since it is related to
Saturday, November 16, 2019
Critique of The Law of Apostasy in Islam Essay Example for Free
Critique of The Law of Apostasy in Islam Essay In 1924 Samuel Zwemer wrote The Law of Apostasy in Islam as a response to several books and articles that claimed there is no punishment in Islam for apostate Muslims. Zwemer quotes Khwajah Kemal-ud-Din who wrote in his book India in the Balance, in Islam there is no penalty for apostasy and Mohammed Alis English translation of The Koran neither here nor anywhere else in the Holy Koran is there even a hint of the infliction of capital or any other punishment on the apostate. Zwemer disputes these claims and tries to prove his contention that there is a long history of punishing apostates throughout the Muslim world (Zwemer 8-9). Zwemer was a missionary for the Christian Dutch Reformed church in the Middle East during the latter part of the nineteenth and early twentieth century. The people he worked with and tried to convert to Christianity were Muslims. Zwemer begins his argument in the chapter Why so Few Moslem Converts by citing numerous cases where Muslims practiced punishment and ostracism against apostate Muslims, that is, Muslims who had converted to Christianity. The incidents described are anecdotal and deal with specific examples where apostate Muslims underwent punishment or discrimination at the hands of practicing Muslims. Assuming, for the sake of argument, Zwemer is correct and such practices occurred, Zwemer still does not disprove either of the statements quoted above. What Zwemer proves is that some Muslims were punished, nothing more. He has not proven the Koran supports such practices. The title of this chapter must give the reader pause; it does not seem to be the title of an intellectual argument, but more like a defense of his and other missionaries efforts while working among Muslims. Apparently he had concluded the reason for his lack of success was due to fear of punishment by other Muslims, not because he was a bad missionary, or because the tenets of Islam were more convincing to people in the region than the principles in Christianity (Zwemer 15-29). In the chapter two The Law of Apostasy Zwemer quotes three passages of the Koran that he claims indicate an official sanctioning of punishment of apostates. Zwemer is unconvincing. The phrase take from them [apostate Muslims] neither patron or help (IV. 90, 91) and alleges that the standard commentary of Baidhawi, whoever that is, means take and kill him wheresoever you find ye find him, like any other infidel (Zwemer 33). It appears Baidhawi has chosen an interpretation that is not justified from the original text. He treats the other passages in a similar fashion, interpreting them to mean apostates should be killed or punished, when a more straightforward interpretation does not imply his conclusion. Zwemer errs in at least two fashions. First he appears to equate evidence that indicates punishment has been administered against apostates indicates the sanction of such actions by the teaching of Islam. This is not the case. Throughout history there are far too many examples where common practices were either directly prohibited by official policies or were not addressed by these policies. This does not indicate official policies authorized such actions. Secondly, Zwemers evidence is largely either anecdotal or demand such contrived interpretations of the Koran as to unconvincing. Consequently The Law of Apostasy in Islam does not prove that punishment for apostate Muslims is a tenant of Islam. Works Cited Zwemer, Samuel M. The Law of Apostasy. London: Marshall Brothers Ltd, n. d.
Thursday, November 14, 2019
Cox Enterprises Essay -- GCSE Business Marketing Coursework
Cox Enterprises Media Corporations in the Global Marketplace Cox Enterprises, Inc. (CEI) is an Atlanta-based media conglomerate that has ties into nearly all media forms today. Since the founding of Cox Enterprises by James M. Cox in 1898, CEI has been established as a media staple through newspapers, radio, television, cable, telephone, and Internet communications . As of 2000, Cox Enterprises was ranked seventh in AdAgeââ¬â¢s ââ¬Å"100 Leading Media Companiesâ⬠. Cox Enterprises is listed on the New York Stock Exchange and is currently being led by Chairman and Chief Executive Officer James C. Kennedy, the grandson of James M. Cox. Cox Enterprises ,Inc. is the parent company for Cox Communications, Inc., Cox Interactive Media, Inc., Cox Newspapers, Inc., Cox Radio, Inc., Cox Television, and Manheim Auctions, Inc . Since James Kennedy became the CEO for Cox Enterprises in 1988, revenues have increased from $1.8 billion to more than $7.8 billion in 2000 . The public trading of both Cox Communications and Cox Radio since the company takeover by Kennedy has resulted in a respectable market capitalization of $27 billion and $2.4 billion. The establishment of Cox Enterprises began in 1898 when James M. Cox purchased the Dayton Evening News in Ohio . Prior to the success of Coxââ¬â¢s media career, he ran and lost against Warren G. Harding in the 1920 Presidential election. Upon losing the election, Cox decided to return to Ohio and focus on his media business. In 1934, he...
Monday, November 11, 2019
Implications For Classroom Teachers Education Essay
Learning is the ââ¬Å" procedure that consequences in a comparatively abiding alteration in a individual or individuals â⬠( Alexander et al, 2009: 186 ) . Harmonizing to Winn, 1990, larning is a dynamic procedure whereby the pupils ââ¬Ë cognition and accomplishments are different when compared before to after larning. Since ââ¬Ëteaching ââ¬Ë is the publicity of acquisition, our cognition of acquisition and the corresponding theories in how we learn should inform our instruction ( Muijs, 2007 ) . Understanding how cognition is developed can let instructors to determine the methodological bringing of their capable content to fit the theoretical models underpinning how cognition is enhanced. Attending to the manner pupils learn can be used to foster effectual instruction patterns, leting instructors to better their pattern, and finally enhacne the quality of the scholars ââ¬Ë experience ( Macleod & A ; Golby, 2003 ) . A figure of educational research workers, including Vytsgosy 1986, Piaget, 1976, Skinner 1974 ; Bandura 1986 amongst others, offer larning paradigms to explicate how persons learn. For the intents of this assignment the extremes of this larning theory spectrum, which are represented by the Behaviourist and Constructivist theories of acquisition, will be discussed. Inevitably, larning and learning airss a interactive relationship, reenforcing the demand for instructors to learn with an attack that reflects how pupils of course learn ( Muijs, 2007 ) , and later see the deductions of the learning theories on their schoolroom pattern. The behavioristic theory of larning Learning, harmonizing to behaviorists ( Skinner 1974 ; Bandura 1986 ) , is defined as the acquisition of new behavior. The focal point of behaviorism is the conditioning of discernible human behavior and revolves around the chief construct that a reaction is made in response to a specific stimulation ( Prittard, 2009 ) . This reaction leads to a effect. If the effect is pleasant and positive, the behavior alteration becomes strengthened via positive support. With consistent support, the behavior form becomes conditioned and is automatically activated upon stimuli presentation. Physiologically, behavioristic theories propose that acquisition is achieved through support of a peculiar nervous tract, which links the stimulations and response in the encephalon. This perennial activation and support finally strengthens the nervous tracts and connexions between the stimulation and specific responses, ensuing in a faster, smoother execution of certain responses ( Pritchard, 2009 ) . Behaviorists identify this signifier of larning as ââ¬Ëconditioning ââ¬Ë , where with consistent support the behavior form becomes conditioned. Classical conditioning involves the support of a natural physiological reaction or behavior which occur of course as a response to a specific stimulation. In contrast, ââ¬Ëoperant conditioning ââ¬Ë involves reenforcing behavior by praising it, or detering unwanted behavior with penalty ( Prittard, 2009 ) . Constructivist advocators, including Vygotsky 1986 and Piaget ( 1970 ; 1976 ) amongst others, began to knock the behaviorist attack, as it was seen excessively teacher centred and directed, nothingness of meaningful acquisition and the instructor procedure was focused excessively much on single instead than collaborative group work. In add-on, the constructivist theoreticians challenged the behaviorist proposed separation between mental processing and cognition, which had to be bridged by the function of a instructor ( Prittard, 2009 ) . The Constructivist Theory The constructivist motion was formed on Piaget ââ¬Ës ( 1976 ) and Vygotsky ( 1986 ) work who viewed acquisition as the consequence of mental building, whereby scholars combined their bing cognition with new information, to build significance and formulated their apprehension ( Cholewinski, 2009 ) . The constructivist theory proposes that larning is an active, contextual procedure, a societal activity, centred on building significance and see the scholar as a responsible agent in their cognition acquisition ( Loyens 2007 ; Cholewinski 2009 ) . In constructivist acquisition, persons use world-based experiences in an attempt to do sense of what they perceive and set up their apprehension of their milieus ( Harris, 1994 ) . Since constructivism involves scholars to interact with their immediate acquisition environment, acquisition has been considered to be situation-specific and context-bound activity ( McInerney and McInerney, 2002 ) . Constructivism is an umbrella term to embrace the broad scope of constructivist positions, which can be separated into two subdivisions ; cognitive constructivism ( Piaget, 1976 ) and societal constructivism ( Vygotsky, 1986 ) . Both sub-types believe that cognition is actively constructed by persons ( Birenbaum 2003 ) , nevertheless through the usage of different mediums ; either through a series of internal, rational phases ( cognitive constructivism ) , or by societal interaction ( societal constructivism ) . The legion positions on constructivism within these two sub-types could be basically grouped around a rooted premise about larning. That is, cognition is actively constructed by the scholar ( Birenbaum 2003 ; Harris and Alexander 1998 ) . Jean piagets ââ¬Ë ( 2001 ) ââ¬Ëdevelopmental phase ââ¬Ë theory, which represents cognitive constructivism, presents four age-referenced development phases which provide a theory of gradual cognitive development up to the age of 11 old ages old. The phases refer to an expressed age scope and characterize the cognitive abilities necessary at each phase to build significance of one ââ¬Ës environment. Social constructivism emphasises the function of linguistic communication in the procedure of rational development. Vygotsky considered duologue, normally with a more knowing other, as a vehicle by which constructs are considered, shared and developed. The duologue, which is based on scholars ââ¬Ë pre bing and current cognition ( scheme ) , is so exploited to develop and build new thoughts and understanding. Vygotsky advocates that the procedure of larning involves traveling into and across a zone of proximal development, which is aided by the intercession of another through support. The zone of proximal development is a theoretical infinite of understanding which is merely above the degree of an person ââ¬Ës current apprehension. The procedure of giving support to scholars at the appropriate clip and degree of edification to run into the single demands is termed scaffolding. Scaffolding can let the motion from one zone to another and aids in the passing through the zone of pro ximal development. From reexamining the literature, educational research workers which employ these constructivist rules select facets from both strands of this larning theory ( Biggs, 1979 ) , and use constructivist theories as a generalized term. Therefore, for the intent of this assignment, the term constructivism will reflect a coaction of both societal and cognitive strands ; nevertheless specific subdivisions and the deductions of these strands are highlighted where necessary. Critique of larning theories and associated deductions upon schoolroom pattern A reappraisal of the literature suggests that behavioristic acquisition does non offer pupils the opportunity to develop deep significance and apprehension ( Entwistle & A ; Smith, 2002 ) , but alternatively has a inclination to advance superficial acquisition of accomplishments ( Fosnot, 1996 ) . Making a ââ¬Ëcorrect ââ¬Ë response and retrieving content does non needfully connote understanding, and accordingly the existent apprehension achieved through behavioral attacks is challenged. Marton et Al, ( 1997 ) and Entwistle and Smith ( 2002 ) conclude that the usage of rote memorization represents a learning attack to a surface degree of apprehension, whilst set uping links with current cognition, as encouraged by constructivists, reflects an attack for a deeper degree of understanding. This suggests that academic and capable cognition acquisition, based on the behavioristic theory, may non be academically supported. Furthermore, from a constructivist position, the rule of larning utilizing anterior experience is besides good in advancing a deeper and richer apprehension ( Pressley, Harris & A ; Marks, 1992 ) . Demerici 2009 advises that information which is connected to a scholar ââ¬Ës anterior experiences is more likely to be retained, explicating higher keeping rates when a constructivist attack is adopted. ( Demirici and Yavuz, 2009 ) . Research suggests that larning through such constructive mediums, like treatment, engagement and pattern, are academically successful and associated with acquisition additions and cognition keeping ( Demirci & A ; Yavuz, 2009 ) . Dericimi besides reported a important difference in post-test classs and keeping acquisition trials classs, with the constructivist attack being more efficient than the conventional, behavioristic attack. Cumulatively, the research suggests that constructivist attacks lead to a richer and deeper apprehension. It is hence plausible to propose that the quality and deepness of understanding associated to a constructivist learning attack is more likely to transcend that of the behaviorist attack. However, as Entwhistle and Smith ( 2002 ) identify, the association between memorization and surface attack acquisition may be weak. Kember, ( 1996 ) and Watkins and Biggs ( 1996 ) reported that memorization can be used to larn unfamiliar nomenclature, as the first phase to set uping understanding. This construct, where memorization is portion of meaningful acquisition, is defined as memorizing with apprehension ( Marton, Watkins, & A ; Tang, 1997 ; Meyer, 2000 ) and has been conducted by pupils as a successful alteration tool ( Entwistle & A ; Entwistle, 2001 ) . Controversially, Fox ( 2001 ) suggests that the constructivist theory may connote that retrieving is non of import, and that acquisition is entirely centred on understanding constructs. However, neither of these are true, and being able to retrieve cognition is an of import requirement of larning. In add-on, Biggs, ( 1998 ) and Jin and Cortazzi, ( 1998 ) have reported that constructivist learning attacks do n't systematically vouch learning effectiveness. Alternatively, traditional, more behavioristic attacks to larning in big categories has proven to be successful internationally, such as in China. Fox, 2001, argues that constructivism neglects the function of memorization and mechanical acquisition techniques Arguably, due to the variable nature of intending which is uncontrollably constructed by pupils, in some instances, rote larning and memorization may be more utile when learning factual constructs and where lucidity in apprehension is required. Rote acquisition may be used to assist pupils get by better with some facets of work that they find hard. In add-on, Smith ( 2001, 2002 ) affirms that rote acquisition can lend to understanding. However, instructors must see that rote acquisition is non an attack to develop understanding and hence where possible, should be followed by efforts to promote and advance apprehension. For illustration instructors could see prosecuting with the topic content and arousing treatment of the content in an attempt to promote more meaningful apprehension. Group work may play a really of import function in reenforcing capable cognition and worki ng together and join forcesing with equals could be a utile instruction and larning tool. Ultimately, it appears that behavioristic acquisition attacks can be good for peculiar undertakings such as set uping schoolroom behavior ( Prittard, 2009 ) . For illustration, Muijs & A ; Reynolds ( 2003 ) study that standard school and schoolroom modus operandis and outlooks for behavior can be successfully learnt through behavioristic attacks. Therefore, instructors need to see whether the acquisition is academic or behavioral before learning the category. In the instance of behavior direction, a scheme to hush the category, such as elevation of the manus, or numbering down from three could be efficaciously used. In this instance, the stimulation, such as the instructor raising their manus or naming out the figure three, must be to the full explained to the category. In add-on, the stimulations must be to the full seeable and hearable to the pupils, which is possible with a clearly risen manus or an self-asserting voice. The response desired, such as a pupil elevation of the manus and silence, must be to the full understood by pupils. It is of import that the stimulus-response happening is repeated by the instructor and used on a regular basis. The same scheme should be employed every clip the instructor wants to hush the category, set uping consistence of stimulations and behavioral response. This perennial activation strengthens the tracts, affording for a drum sander and faster execution of the response. Students should be made cognizant of the negative and positive effects if they do non react to the stimulation as desired and the effects need to be kept consistent. Therefore, consistence of behaviour direction schemes is important and schoolroom pattern must adhere to the same strategise as the same stimulation is presented for a specific response. Behaviourism relies on support which is employed to condition the behavior, and hence is basically the tool which brings about larning. Therefore wagess and penalties for behavior must play a important function and actively administered within schoolroom pattern. Behaviourism may therefore stimulate and promote more usage of positive support which has been a good recognized effectual schoolroom pattern ( Elliott and Busse, 1991 ) . However instructors must see that honoring kids who are already extremely motivated may non be as effectual, and may really take to a loss of involvement ( Prittard, 2009 ) Rewards and congratulations have been shown to heighten motive, and serve as an effectual behavior direction tool, nevertheless, praising pupils may non come of course to instructors. Behavioristic attacks to larning look to be more favorable to certain persons, and instructors need to see the students concerned and whether this attack to larning suits their acquisition manners, demands and ability. For illustration, Prittard ( 2009 ) studies that behavioristic methods are more advantageous for those students who display dying inclinations and low motive. In contrast, those of higher academic ability perceive simplistic drill and pattern unsatisfying and dull ( Prittard 2009 ) . In add-on, some pupils demand understanding, yet adhering to behavioristic acquisition attacks does non suit this demand. In other state of affairss, the constructs of larning without understanding can fuel defeat, lead to misconceptions and bring forth a hard acquisition environment ( Prittard 2009 ) Another of import consideration is that behaviorist attacks do n't take history of mental cognitive processing involved in larning. In contrast, constructivism accents that the scholars must develop their apprehension for themselves and constructivist research workers ââ¬Ë advocator that mental activity is the lifeblood of acquisition and the extent of what is learnt ( Jonassen & A ; Rohrer-Murphy, 1999 ) . However, the constructivist theory may connote that all single differences in larning come down to the effects of each scholar ââ¬Ës history of acquisition ( Loyens, 2008 ) . Furthermore, although we do larn by geting cognition from our environments through interacting with the external universe, Fox high spots that the environment besides acts upon scholars. That is, we act and respond, and acquisition can be achieved from both experiences. However, constructivism appears to neglect to admit adaptative natural responses as reactive signifiers of acquisition ( Fox, 2001 ) and the function of endowment in cognitive development. Furthermore, Fox ( 2001 ) and Bredo, ( 2000 ) argue that constructivism discounts the function of innate, motivational and familial factors in cognition building, which have been proven to play a function in cognitive development and acquisition ( Carey & A ; Spelke, 1994 ) . Teachers hence can non presume that the merchandises of larning are entirely the instructors ââ¬Ë attempt and thought ; alternatively acquisition is externally and internally influenced. Importantly, instructors need to supply activities which engage and challenge scholars. This demands a board array of work which is differentiated to the scholars ââ¬Ë intellect.. Teachers need to offer range of activities where the accustomed attempt and activity falls on the scholars ââ¬Ë duty. Differentiation is a critical deduction in the schoolroom to guarantee that all students have to use mental attempt and take an active function in their ain acquisition. Such chances would afford scholar battle and optimize the possibility of effectual enduring larning taking topographic point ( Prittard, 2009 ) . Personalisation is besides important to guarantee all scholars, despite familial and innate differences which may impact their acquisition are accounted for. If a student is set undertakin gs which do non necessitate idea or challenge, larning constructively will neglect. Piaget ââ¬Ës phase developmental theory offers counsel covering the degree of complexness that may be expected in a kid ââ¬Ës thought procedures at approximative phases in their development. Jean piagets Theory may steer a instructor ââ¬Ës distinction as to the ability of students, and the needed staging and support in order to ease the motion between zones of cognitive development. Whilst Piaget ââ¬Ës developmental phase theory influences chiefly primary school instruction patterns, given the ages this theory is related to, the grasp and consciousness that cognitive ability develops with age is of import to see when learning all ages. The exactitude of the Piaget ( 2001 ) phase of development has been criticised since in it ill-defined and assumptive to presume kids will go through through the phases at specific ages, nevertheless, as a developmental procedure ; this theory is utile in learning patterns Another deduction for instructors is the oppugning they employ within the schoolroom. To let students to build their ain cognition and apprehension, inquiries need to be higher order and exploratory Moursund ( 2003 ) , in conformity with Blooms Taxonomy ( 1956 ) , to include bid words such as ââ¬Ëevaluate ââ¬Ë and synthesise ââ¬Ë . Furthermore, inquiries need to be open-ended and let students to develop their personal apprehension though replying the inquiries, instead than simple closed inquiries, where the replies are already pre-determined. Students need to be given the chance to bit by bit larn procedures and build their ain replies. Teachers can advance this utilizing inquiries which encourage pupils to bit by bit build their apprehension, such as evaluate, synthesise and analytical inquiries. Another booby trap of the constructivist theory is that it assumes pupils actively seek resources and experiences, and hence pupils understanding is dependent and anchored by their experiences and preexistent cognition. In add-on, it is assumed that scholars utilise the construed informations to actively build their cognition ( Renkl, 1999 ) . Therefore, this attack to larning relies on pupils meeting experiences and using these experiences to their preexistent cognition to develop their apprehension. However, such experiences and world-based interactions may non be executable or available to pupils due to their lifestyle fortunes. Consequently, instructors need to be cognizant that understanding and significance is limited to the single experiences of the pupils. In conformity with this premise, the constructivist theory can explicate why students ââ¬Ë constructs and intending do vary between each other ( Taber, 2000 ) . In add-on, if the building of cognition is the activity of the scholar, so the scholar can merely understand what they have constructed ( Duffy & A ; Cunningham ) . Therefore, constructivism may be seen as subjective and comparative ( Duffy and Cunningham, 1996 ) . This may take to taging standards disagreements, confusion and incompatibility, and pupil misconceptions, which do non fit world. In add-on, Duffy and Cunningham propose that if the buildings and significances are different amongst pupils, the small shared apprehension may dispute the easiness of communicating between scholars and the category. This may endanger the effectivity of category treatments and societal interactions as a tool to heighten acquisition. Similarly, as building is activity on portion of the scholar ( Bruner 1966, 1971 ) , what is constructed can non be controlled by the instructor. Alternatively the scholar has autonomy and self-regulates what apprehension is established. Therefore the pupils constructed understanding may non parallel with other pupils, with world or with the instructors building and apprehension, ensuing in multiple apprehensions ( Choleweskni, 2009 ) . Consequently, instructors must non presume that the building and apprehension of a construct is cosmopolitan between all pupils. Alternatively instructors must actively entree and see the alternate perceptual experiences and apprehension of the scholars, therefore why a transmittal learning attack is bootless. On the other manus, instructors come into the schoolroom with their ain building and constructs of capable content, and harmonizing to Patrick ( 1988 ) , are non ââ¬Ëneutral ââ¬Ë . Therefore, a instructor ââ¬Ës apprehension can color the pupils understanding, and together, Patrick ( 1998 ) and Marton and Booth ( 1997 ) suggested that some instructors ââ¬Ëmoulded ââ¬Ë the pupils ââ¬Ë building of a construct to aline with their construct reading. Einsworth and Collins ( 2002 ) conclude that the signifier of understanding impressed onto pupils is mostly dependent on the instructor ââ¬Ës personal reading of the topic content. Therefore, although the constructivist theory assumes that the building of apprehension is the merchandise of the scholar ââ¬Ës reading entirely, the constructivist theory does non account for the interplay between instructors ââ¬Ë and scholars ââ¬Ë comprehension. To suit these pre-requisites of acquisition, the person ââ¬Ës cognition needs to be continually assessed. As a regular schoolroom pattern, formative appraisal could be used as a regular attack to measure bing and new apprehension, before traveling to the following lesson. Formative appraisal is a regular, informal manner of appraisal, leting instructors to supervise pupils ââ¬Ë advancement, gain an grasp of what has been learnt and accommodate their instruction patterns to optimize farther acquisition ( Black and Wiliam, 1998 ) . Consequently, given that acquisition is an active and germinating procedures, formative appraisal can be used by instructors to measure, proctor, challenge ill-defined positions and adapt schoolroom patterns to suit the constructivist rules of larning. Therefore, it is sensible to believe that constructivist attacks to larning favor the usage of formative appraisal and may motivate its usage in the schoolrooms, which Atkin et Al, ( 2001 ) studies as be ing really valuable. Since formative appraisal entirely is associated with acquisition additions, ( Black and Wiliam 1998 ) , larning is positively influenced indirectly via following learning schemes which are aligned to larning constructively. Formative appraisal may be undertaken through inquiring, instructor and pupil treatment, equal and self appraisal and interaction with equals. Formative appraisal will besides place students ââ¬Ë single acquisition demands, back uping instructors conduct in distinction to guarantee students are traveling frontward, across their ZPD and optimize acquisition additions. However, with behaviorism, the chances for feedback are confined to merely whether the response desired is right or non. There is small range for acquisition, or how to better in order to run into the desired response. Therefore, under behaviorist attacks, feedback can non be used for larning intents, therefore chances for appraisal for acquisition, which have shown to heighten acquisition, may non be fruitful. Consequently, limited feedback combined with the nonsubjective results of behaviorist attacks mean that single pupil demands are non needfully portion of the expression when sing learning schemes and capable content. The demand to see single demands is undeniable, hence such restraints of feedback extent presents a battalion of jobs to the instruction and acquisition of pupils. Importantly, to assist progressive acquisition and avoid developing misconceptions, instructors need to supply a clear focal point and ends, with expressed larning aims ( Clarke, 2001 ) , which are rooted within students ââ¬Ë bing cognition. The clear aims allow pupils to build their thoughts utilizing current cognition and understand the overarching way and patterned advance of their acquisition. Triping anterior cognition is of import to arouse pre-knowledge, leting instructors to decode the pupils ââ¬Ë current degrees of apprehension. Teachers need to foreground the links between pupils ââ¬Ë bing cognition and the new capable cognition, to assist the scholar signifier Bridgess and ease their mental building and cognitive procedures ( REF ) . By organizing these links, pupils can trip and remember their preexistent cognition, and utilize this foundation to construct and incorporate new constructs. Teachers should promote pupils to associate new cognition to current cognition and external experiences, leting the new capable content to go embedded within the bing cognition constructions, lending to or amending to the pupils schema. Since larning constructively is based on the add-on of new content to current cognition, the scholar must hold sufficient degrees of understanding before new content can be used to build more complex significance and advancement. Teachers and pedagogues need to recognize and appreciate that new content can non be built up until the foundations, such as current cognition, is secured. Therefore constructive teaching methods include regular formative appraisal to guarantee pupils understanding. When building new constructs and developing understanding, reexamining and reflecting on what has already been learnt besides helps to set up and unafraid pupils ââ¬Ë old cognition. In add-on, by inquiring what pupils understand before shiping on a new construct would assist pupils organize links between new and old cognition ( Fulton ) . This reviewing could be done as a starting motor, but besides plays a function at the terminal of the lesson, organizing a plenary. Teachers should see, incorporate and program for good managed plenary to consolidate cognition. Time to reflect upon what has been undertaken, the procedures and the content gives the chance for internalization and for a deeper degree of understanding to be developed. Similarly, larning is most effectual when scholars become engaged, which means that instructors need to follow an active attack to acquisition and affect prosecuting undertakings to advance acquisition in the schoolroom. Learning utilizing reliable undertakings, which allow students to associate to their ain experience inside and outside the schoolroom ( Selinger, 2001 ) increases the chance of battle with the undertaking and supports findings that larning in a familiar context is most effectual. Authentic undertakings are likely to keep the attending and involvement of kids, and lead to a deeper degree of battle than with non-authentic or less reliable undertakings ( Fulton ) . Favorably, the constructivist rules match those basicss associated with effectual contextual acquisition. Evidence suggests that larning occurs in ââ¬Ëreal-life ââ¬Ë contexts and acquisition is really linked to a context, as deduced by Macleod and Goldby 2003. Children working with new thoughts in a familiar content are more likely to prosecute with the thoughts, than if the same thoughts were present in an foreigner context. Therefore instructors should endeavor to include more reliable undertakings and put acquisition constructs which are aligned with pupils ââ¬Ë familiar contexts. If a acquisition activity falls beyond the cultural apprehension of the acquisition, so larning is likely to be less successful than if it had been situated in a more familiar scene. .Meaningful contexts for larning are really of import ; nevertheless, what is meaningful for a instructor is non needfully meaningful for the pupil. The association between the construct of larning being situated and the demand for reliable acquisition undertakings is grounds ( McFarlane, 1997 ) . However, the recommended attack to state of affairs larning in meaningful contexts ( e.g. Lave & A ; Wenger, 1991 ) has been argued against. Walkerdine, 1988, for illustration argued that if school acquisition became located entirely within the lived universe of day-to-day experiences, the chances for abstract logical thinking and brooding activity, which are all components of constructivism, would go limited and sacrificed, whilst restricting pupils to their local environment. An active acquisition attack can be achieved by promoting pupils to research constructs and thoughts, and to follow their inherent aptitudes ( Wray and Lewis, 1997 ) . Given that geographic expedition can advance consecutive development of thoughts, it is likely to help in the building of new cognition ; the roots to constructivism. Classroom pattern could be based on a discovery-based attack ( Huitt, 2004 ) ; , where pupils can happen replies out for themselves, reply their ain inquiries through experimenting with new thoughts and discourse their beliefs and believing forms with their equals. Importantly, prosecuting with each other reflects societal interactions, which can be a vehicle to develop understanding utilizing societal interaction. Unlike behaviorist attacks where the instructor is the primary resources of cognition and is influenced by their involvements and position ; knowledge building offers the chance of larning to go dynamic and varied ( Sudizna, 1997 ) . The usage of resources promotes more synergistic acquisition and involvement, which are both shown to positively act upon acquisition. Supported by Winn ( 1990 ) , pupil cognition is dynamic and alterations, that is knowledge and accomplishments are different before larning to after direction and Behaviourist attacks have been criticised for non turn toing this dynamic nature of larning. In add-on, behaviorism theory does non appreciate that pupils come into schoolrooms with anterior cognition. Conversely, the constructivist theory acknowledges that pre-existing cognition is needed of larning and that pupils enter schoolrooms with pre-conceptions, cognition and beliefs which they deploy in building new apprehension. ( Jones, Carter, & A ; Rua, 1999 ) As already discussed, scaffolding is important for the scholar to go through through their zone of proximal development, and can be undertaken by the instructor. Scaffolding can be practiced in the schoolroom in many ways, and instructors need to appreciate that this is cardinal to the educational patterned advance of pupils and how this may be achieved. Support stuffs need to be widely available, such as a authorship frame to back up a peculiar manner of prose, or a list of words to assist in the procedure of finishing an exercising, designed to help understanding The proviso of practical setup, particularly in scientific discipline, may assist to explicate the solution to a job and is an piquant attack. Students can grounds world and attach a sense of position and world to their acquisition. Given the explorative nature of constructivism, schoolroom pattern demands to be supportive and bring forth an environment where the pupil feels safe to inquire for aid and comfy in nearing the instructor. The instructor must be cognizant of the different supportive demands of the category, and meet these through distinction and leting clip for category treatment, misconceptions and any deficiency of understanding. To assist the instructor identify those who need more support than others, formative appraisal can be incorporated to foreground the pupils ââ¬Ë single demands that need to be addressed. Ultimately, this will let undertakings to be designed and geared towards the person ââ¬Ës learning ability. Unlike, behaviorism theories, constructivist theory appreciates the of import function societal interaction dramas and recognises the importance of societal interaction in acquisition ( Phillips, 1995 ) . Leting for societal interaction chances, such as collaborative group work and utilizing linguistic communication to build thoughts in groups are encouraged and harmonizing to Jones and Brader-anjerie, ( 2002 ) is regular pattern in schoolrooms. Dialogue is proposed to represent a important constituent of the constructivism paradigm ( Greeno et al. 1996 ; Steffe and Gale 1995 ; Loyens, 2008 ) . Discussion and concerted work is cardinal and can be used through augmenting, debating, discoursing constructs, teacher oppugning and students ââ¬Ë presenting. Teachers should promote pupils to work collaboratively, in braces or little groups, and let them to assist each other and build their ain significance in their ain words of a construct. A saber saw learning attack could be successfully adopted where ââ¬Ëexpert ââ¬Ë pupils facilitate the apprehension of other pupils who may be fighting themselves ( Moudens, 2003 ) . Dialogue with others allows extra and alternate positions to be taken into history when developing personal decisions. Different cognition, points of position and apprehension can be given and considered before traveling on. Teachers should listen to pupils, and utilize their words for explicating constructs and pull on other sentiments of category members. Becoming a constructivist instructor may show a ambitious transmutation. Principally, behavioristic instruction methods appear to be organised and nonsubjective, whilst constructivists learning attacks may look to be unstructured and subjective. Eggen and Kauchek ( 1994 ) reinforced that despite it may look constructivist learning demands less from the instructors due to the discursive and steering function they fulfil, as opposed to a talking ââ¬Ëdispenser ââ¬Ë , the instructor ââ¬Ës function really becomes even more important in student-centred acquisition. Teachers need to pass on content in a constructive attack and promote geographic expedition and battle within students, but besides anticipate and manage a wide arrange of pupil responses, misinterpretations and troubles with new capable cognition. However, paradoxically harmonizing to Brooks and Brooks, ( 1993 ) developing instructors to deploy this constructivist attack in the schoolroom is seemingly light, and most p reparation prepares instructors to present capable content in the diehard, behavioral mode. Therefore instructors need to appreciate the troubles they may confront in defying the more natural and erudite conventional attacks to instruction, and promote a more student-directed and discovery bringing manner within the schoolroom. In add-on, the greater experiences they can derive in constructive acquisition environments, and the opportunity to witness the benefits of using constructive schemes, may advance and ease the passages to more constructive schoolroom pattern. Decision Constructivism appears to be the most favoured ( Mayer, 1992 ; Sudzina, 1997 ) and trusty history of modern acquisition ( Fosnot, 1996 ; Woolfolk, 1995 ) . Despite Brook and Brooks ( 1993 ) studies, from reexamining the literature, it appears there is a outstanding thrust for the displacement from the instructor as a lector to a facilaitor. That is, learning is promoted to go more student-led and enquiry-based. Teaching is supported to be far more synergistic, with capable content being more incorporate with world-life experiences and affect pupil collaborative work, explorative and problem-solving undertakings. Furthermore, support for this comes from Ofsted which appears to propose instruction in schools isâ⬠¦ â⬠¦ â⬠¦ â⬠¦ . However, as discussed, constructivism larning theory does hold its defects and it is of import to admit these unfavorable judgments ( Fox, 2001 ; Phillips, 1995 ) . However, Mathews and Lui ( 2005 ) high spot, it is of import to appreciate that uniting the overplus of constructivist discrepancies is questionable, and hence generalizations may keep less significance. Renkl and Atkinson 2007 proposes that constructivism and behaviorism are n't necessary self-contradictory theories argues. Renkl ââ¬Ës research amongst others ( Baeten et al. 2008 ; Berthold et Al. 2007 ) have offered grounds which demonstrates that meaningful acquisition in ââ¬Ëtraditional ââ¬Ë acquisition environments is besides a constructive act. Fardanesh ( 2002 ) suggests that there is a preferment in using different acquisition and learning attacks with different students. That is, where behavioral attacks can be used for the simple, lower ability scholars, constructivist attacks are most good for progress scholars and experts. In add-on, some schoolroom pattern may underpin a mix of both larning theories, for illustration, mutual instruction ( e.g. , Palinscar & A ; Brown, 1984 ) is frequently cited as a constructivist learning scheme, yet it is really much instructor led, which adopts a more behavioristic attack. Therefore, schoolroom pattern could see utilizing a scope of different learning attacks in alliance with the favorable larning theory of the pupils. Therefore, it is overriding that instructors consider the scholars ability, demands and larning demands to assist determine their bringing attack and instruction manners. These accomplishments and considerations reflect the instructors need to distinguish skillfully and personalize the acquisition content to the larning demands of the category. As a concluding idea for consideration, the constructivist theory evolved to integrate mental procedures within acquisition, yet some research workers argue that this has non been achieved. For illustration, Liu and Matthews 2005 argue that constructivism continues to stand for a separation between mental procedure and the external universe. Saint matthews and Lieu advocate that constructivists and behaviorists despite their conflicting theories, are really likewise rooted in a dualist doctrine of internal procedures and the external universe. This suggests that both behaviorism and constructivism operate within the same conceptual models, supplying fuel to reason that they are based on the similar models. Subsequently the chance gulf between them may non be really as diverse and one time believed. struggles with the appendages of the spectrum. A Alexander, P. A. , Schallert, D. L. , & A ; Reynolds, R. E. ( 2009 ) What is larning anyhow? A topographical position considered. Educational Psychologist 44: 176-192 Atkin, J. M. , Black, P. & A ; Coffey, J. E. explosive detection systems. ( 2001 ) Classroom appraisal and the national scientific discipline instruction criterions. Washington, DC: National Academies Press Bacillus Bandura, A. ( 1986 ) . Social foundations of idea and action: A societal cognitive theory. Englewood Cliffs, NJ: Prentice-Hall. Black, P. & A ; Wiliam, D. ( 1998a ) Appraisal and schoolroom acquisition. Appraisal in Education 5 ( 1 ) : 7-74 Bloom, B. S. , Englehart, M. D. , Furst, E. J. , Hill, W. 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Saturday, November 9, 2019
SIWES Project in Computer Science Essay
1.1 Overview of SIWES SIWES refers to the employment of students nearing under-graduation in firms or organizations, which operate on activities related to the respective studentââ¬â¢s major subjects. The course, CSC 3299 as offered in Ajayi Crowther University is a compulsory subject offered by every computer science student in the 2nd semester of the third academic year with the objective of enabling students to come into contact with real life applications regarding the knowledge and skills gained in both theoretical and practical courses of the university. The core courses of Computer Science offered by ACU are both theory and laboratory practical -based and aid in providing a theoretical concept or ââ¬Ëbaseââ¬â¢ to the students so that they are equipped with sufficient knowledge for joining the work force after completion of under-graduation. SIWES on the other hand helps the students familiarize themselves with the experience of being employed in their field and effectively learning and applying the knowledge required by carrying out their activities in the offices and fields. 1.2 Objectives of SIWES The general objectives if SIWES are outlined as follows: Helping students break free from the theoretical world of ****books and class courses and leap into the real world of applications of knowledge. Enabling the students to effectively interact in a work environment within a hierarchy of employees. The efficiency in working in groups and under higher authorities is tested during this course. Helping students to express dependability, initiative, resourcefulness and professionalism in the tasks they are assigned. To evaluate the personââ¬â¢s ability to communicate and operate under pressure, if required. To help students enhance their creativity and efficiency in dealing with projects related to their field of study. To enable students to pick up skills from the experience and projects of other employees to apply in their own tasks. To enable the student realize their relative strength in a field with many practical applications and help students come out with final year projects that model real life industry challenges. 2.0 Origin of the Report This report has been prepared as a requirement of the internship program. The report was based upon the ICT department of the organization Nigerian civil aviation authority (NCAA). 2.1 ORGANISATION BRIEFS AND STRUCTURE OF NCAA Brief : Nigerian Civil Aviation Authority is the regulatory body for aviation in Nigeria. It became autonomous with the passing into law of the Civil Aviation Act 2006 by the National Assembly and assent of the President, Federal Republic of Nigeria. The Act not only empowers the Authority to regulate Aviation Safety without political interference, but also to carry out Oversight functions of Airports, Airspace, Meteorological Services, etc as well as economic regulations of the industry. Nigeria has just successfully passed through the ICAO Security follow-up Audit of May 2006 and the ICAO Universal Safety Oversight Audit in November 2006. Nigeria is now preparing for the American FAA IASA Category 1 Certification. With over 25 Airports, 30 Airlines, 590 Pilots, 19 Flight Engineers, 258 Air Traffic Controllers(ATC), 677 Aircraft Maintenance Engineers, 1103 Cabin Crew and 4 Aircraft Dispatchers, Nigeria now boasts of improved aviation infrastructural facilities at the Airports, state of the art navigational aids, modern weather forecasting equipment and highly skilled manpower to ensure safety and comfort of the flying public. Airlines have started bringing in brand new aircraft to the industry 737-700 new generation, Regional Jet CRJ 400/900, Dash 8-400Q, Business Jet/Turboprop, Helicopters, B777, Dreamliner B787, Jumbo Jet Boeing 747-400 series as well as brand new Regional Jet Embraer. 3.0 NCAA STRUCTURE Senior Management : Director General: Dr. H.O. Demuren Director of Airworthiness Standards: Engr. P. Ekunwe Director of Licensing: Capt. Adamu M****ia (Acting) Director of Operations and Training: Capt. A. N. Aliyu (Acting) Director of Aerodrome and Airspace Standards: Mr. Lawal Haruna Director of Air Transport Regulation: Ms. I. Sosina Director of Finance and Administration: Mrs. Elemanya Ebilah Director of Consumer Protection: Alh. Abdullahi Adamu Company Secretary/Legal Advisor: Mrs. A.A. Gbem Organizational Chart: 4.0 BRIEFS ON ICT DEPARTMENT 4.1 Our Goal To provide high quality, customer and staff-focused Information and Communication Technology support for efficient and value-added service delivery. 4.2 What We Do Our purpose is to ensure that our structures ââ¬â such as all communication-based procedures for the NCAA ââ¬â within and outside ââ¬â conforms to standard ICT platforms and practices, carefully targeted to meet our goal. 4.3 Objectives â⬠¢ To deploy modern-based ICT facilities that will become catalysts in the innovative processes of effective aviation safety within our air-space â⬠¢ To embark on an on-going process in which to foster better information and communication access for aviation service users â⬠¢ To provide the means by which information and communication knowledge is developed, stored, aggregated, manipulated and diffused within and outside the NCAA and to become the major transformational medium of aviation safety reformation â⬠¢ To technologically support and enable NCAAââ¬â¢s full participation in the global economy 5.0 Responsibilities â⬠¢ Advice on adoption of most efficiently and effective ICT policy â⬠¢ Ascertain proper and smooth operations of computer systems at the headquarters â⬠¢ Draw ICT and ICT-related Budgets â⬠¢ Assess the impact of ICT in economic growth and development â⬠¢ Drawing up specifications to facilitate procurement of appropriate computer hardware and software related features within the organization â⬠¢ Supervise the installation and commissioning of computer network systems â⬠¢ Contact point on all ICT-issues.(i.e. ICT Management) â⬠¢ Represents the organization in all forums on ICT-related issues â⬠¢ Coordinate training of staffs on computer systems in line with E-Government Strategy to build a proper ICT capacity within the organization â⬠¢ Advice the organization on information security in the use of computers and Maintain important information and data backups CHAPTER 2 DESCRIPTION OF WORK DONE During my six months SIWES at NCAA, I worked extensively in the Network and maintenance unit, Where I gained a lot of experience in network environment and system maintenance. 6.1 NETWORK STRUCTURE OF NCAA: 6.2 SUMMARY ON THE NCAA NETWORK NCAA uses a domain to organize the network environment. Domains are groups of PCs on the same network and are a method to isolate communications between the members in the domain and the other data traffic.. Anyone in a domain can communicate with each other and out bound, however PCs not defined in the domain can not communicate with those in the domain. Basically the network starts from when the satellite in space sends radio signals down to the satellite dish receiver (ku-band, ka-band, c-band e.t.c). This satellite dish receiver is connected to the private port of the internet modem then the public port of the modem is connected to the ISA server which acts as the gateway to internet access. The ISA server is connected to a domain controller which controls the domain environment by granting anyone who has a registered account on the domain access to the internet recourse. I.e. anyone who does not have an account or valid log on credentials cannot use the internet. Domain controller can also be used to control the network environment by restricting the rights to chance setting on the workstation so that only administrative rights can alter settings. The ISA server is also connected to an antivirus server which monitors the automatic updates and downloading of update for all workstation in the domain with a specific antivirus used for the network installed on them. The ISA server is also connected to a 24 port switch which is connected to the different switch cabinet in each directorate of office buildings (since it is a 24 port switch it take a maximum of 23 directorates, another switch can be connected to the first switch in case of more buildings). Ever building has a cabinet where LAN (local area network) connections are distributed to different offices. The cabinet comprises of switches and patch panels. The patch panel is a device that is used as a repeater so that signals donââ¬â¢t get loss over a long cable. One of the cables that comes from the main 24 port switch goes to the patch panel then a RJ-45 cable is connected from the patch panel to the switch (mostly a 24-port switch) in the cabinet (in case of two switchesà we have two patch panels.). The patch panel then distributes the connection in the office or to other offices in the building as LAN port where workstations can be connected to by the use of RJ-45 cable (workstations can also be connected directly to the switch). As for wireless connection, a wireless router or access point is placed at every passage way in each building. The wireless access point is either connected to one of the switches in the cabinet or the main 24-port switch.
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