Wireless Communication Essay Example | Topics and Well Written Essays - 500 words

Wireless Communication - Essay Example Since for full mesh network topology every node must has a circuit connecting it to every other node in a network hence it is a very expensive to implement. Ring Topology In ring topology all devices are connected to one another in the shape of a closed loop, so that each device is connected directly to two other devices, one on either side of it. Advantages and Disadvantages Ring topologies are relatively expensive and difficult to install, but they offer high bandwidth and can span over large distances. Ethernet A most widely implemented local-area network (LAN) architecture developed by Xerox Corporation in cooperation with DEC and Intel in 1976 is termed as Ethernet. It uses a bus or star topology (as shown in fig. 1) and supports data transfer rates of 10 Mbps. A newer version of Ethernet called 100Base-T supports data transfer rates of 100 Mbps while the latest version, Gigabit Ethernet has data transfer rates of 1 gigabit (1,000 megabits) per second. The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. Ethernet uses the Carrier Sense with Multiple Accesses with Collision Detect (CSMA/CD) access method to handle simultaneous demands.

Punishment and Society Essay Example | Topics and Well Written Essays - 2000 words

Punishment and Society - Essay Example 108). According to Wendy (2005, p. 108), these authors vary in their focus on particular elements, there is a general agreement that the nature of punishment changes through the historical transition from primitive or early tribal law to the development of modern legal systems. Early tribal law is also called primitive legal systems is linked to small homogeneous and undifferentiated societies. This paper will assume a period in mid 19th century (1840s- 1860s) and look into how matters of theft, infanticide and rioting would be dealt with as at that time based on evidence from similar cases handled during this period. It is worthwhile to note that the period quoted in this question refers to a time in which the children and adults were treated the same in judgment (Centre on Juvenile and Criminal Justice 2006, p. 6). Case of Jack Martin VS Lord Master Man In this case Jack Martin, a 10 year-old boy is convicted of the theft of two rabbits from Lord Master Man's land.  According to law in the 19th century this case would have counted as Petty Larceny especially if the value of the rabbits did not exceed a shilling. Also, it might be expected that the value of rabbits would exceed one shilling and in that occasion, this case would be counted as Grand Larceny. Either way, Jack would have a case to answer especially if evidence is sufficient. However, based on the case of Cooper Vs Walker, 1851, another consideration may arise. This case of Cooper Vs Walker relates to a market gardener of Beeston, Robert Cooper, an agricultural laborer John Walker and the theft of some onions. The census statistics of 1851 for Girt-ford near Sandy shows John Walker then a boy of 10 years old living with his parents William and Mary. John was the youngest of the four children, Thomas (15) Daniel (13) and Sarah (12). Records shows John to had been laborer at this age opposed to what would have been expected of him being a pupil. In 1861 however John had been accused of assault but was released after two months of imprisonment. He seems to have been set fair for a life of crime and indeed between September 1861 and March 1874 he had 14 convictions for petty offences (Victorian Crime and Punishment 2006, p. 18) There was noticeable difference however between Robert Cooper and John's family. The census statistics of 1871 for Beeston, also near Sandy, shows Robert to have been a young man of 27 years living with his 24 year old wife, Elizabeth and their three young children John (4), Charles (3) and Maud, a year old. The Coopers were rich enough to employ a living-in servant Jane Martin. They had wealth generated from their market gardening activities which were plasticized on a piece of 43 acres of land. On 13th September 1873 it is reported that as Cooper was sitting near the hedge bordering one of his fields where there were heaps of onions lying in the field, he watched as John Walker who, until the previous day had worked for him pick onions from these heaps . Walker picked about a peck from every heap and then smoothened out the heap so as to conceal the disturbance. He then used a sack to carry the stolen onions. This

Distance education Essay Example for Free

Distance education Essay Distance education dates back to at least as early as 1728 when an advertisement in the Boston Gazette promoted Caleb Phillips, Teacher of the new method of Short Hand, who sought students who wanted to learn through weekly mailed lessons. Similarly, Isaac Pitman taught shorthand in Great Britain via correspondence in the 1840s. Distance education has a long history, but its popularity and use has grown exponentially as more advanced technology has become available. By 2008, online learning programs were available in the United States in 44 states at the K-12 level. Definition Education where teachers and students are separated in both place and time. They communicate at times of their own choosing by exchanging printed or electronic media, or through technology that allows them to communicate in real time or through other online ways. Advantages Distance Education does not require commuting, saving money otherwise spent on travel back and forth to school. Convenience and flexibility. You complete classes at your convenience. Accessibility. Live and study from anywhere while pursuing education of your choice. Online classes address accessibility issues that some people with limited mobility encounter. Self-paced learning. Individualized Instruction. Vast resources readily available through the internet which are relatively inexpensive. Potential. The opportunities for distance education have exploded with the increased use of the internet. Many degrees are available through distance learning including high school, college and post graduate programs. Cost. Distance education is considerably cheaper than attending a traditional college. Key players in Distance Education Students Faculty Facilitators Support staff Administrators Interaction and Technology in Distance Education Interaction is an important component of any learning experience. One of the most important factors relating to distance learning is the element of interaction as its much different of an environment in a traditional classroom than what occurs in distance learning. Learner Content LearnerInstructor LearnerLearner LearnerTechnology Synchronous vs Asynchronous Interaction In distance Education most interaction done Asynchronously; interaction between them is delayed. One good example is a teacher may deliver the video instruction via email and the learner may respond in a later time. Synchronous interaction like in traditional classes where learners and instructors interact real time: you talk I immediately respond. This could be achieved in distance learning as when computer conferences are held at pre-established times via chat technologies. Distance Education Technologies The various technologies used in distance learning can be roughly divided into four categories, However many of these technologies could overlap into more than one category. Print Technology The original form of Distance Education was correspondence courses, in which print material was mailed to students and returned to the teachers through the postal system. The University of London was the first university to offer distance learning degrees through correspondence, establishing its External Programme in 1858. This program is now known as the University of London International Programmes and includes Postgraduate, Undergraduate and Diploma degrees created by colleges such as the London School of Economics, Royal Holloway and Goldsmiths. In the United States William Rainey Harper, first president of the University of Chicago developed the concept of extended education, whereby the research university had satellite colleges of education in the wider community. In 1892 he also encouraged the concept of correspondence school courses to further promote education, an idea that was put into practice by Columbia University Computer Technology Computer based technology includes email, online collaborations and web-based education as a means of delivering distance learning. The widespread use of computers and the internet have made distance learning easier and faster, and today virtual schools and virtual universities deliver full curricula online. In 1996 Jones International University was launched and claims to be the first fully online university accredited by a regional accrediting association in the US. Video Technology Video techniques often used for distance learning include videotapes, satellites, television cables, and computers offer opportunities for behavior modeling, demonstrations and instruction of abstract concept. Audio technology Offer cost effective ways to enhance distance learning courses. It can be as simple as a telephone with voicemail or it can be as complex as an audio conference with microphones and speakers. The very rapid spread of radio in the United States in the 1930s led to proposals to use it for distance education. By 1938, at least 200 city school systems, 25 state boards of education, and many colleges and universities broadcast educational programs for the public schools. One line of thought was to use radio as a master teacher. Experts in given fields broadcast lessons for pupils within the many schoolrooms of the public school system, asking questions, suggesting readings, making assignments, and conducting tests. This mechanizes education and leaves the local teacher only the tasks of preparing for the broadcast and keeping order in the classroom. Research and Distance Education The University of the Philippines Open University (U. P. O. U.) is a public distance learning institution and research university that provides quality higher and continuing education to Filipinos through the distance education system. Melinda dela Pena-Bandalaria (2007) in her article on Impact of ICT’s on open and distance learning in a Developing Country setting: The Philippine Experience, pointed out the distance education in the Philippines has undergone four general stages or generations. It also includes how quality of education is ensured in a technology-driven system of teaching and learning.

I Know Why the Caged Bird Sings: Movie and Book Essay -- Movie Film co

I Know Why the Caged Bird Sings: Movie and Book The novel, "I Know Why the Caged Bird Sings", by Maya Angelou is the first series of five autobiographical novels. This novel tells about her life in rural Stamps, Arkansas with her religious grandmother and St. Louis, Missouri, where her worldly and glamorous mother resides. At the age of three Maya and her four-year old brother, Bailey, are turned over to the care of their paternal grandmother in Stamps, Arkansas. Southern life in Stamps, Arkansas was filled with humiliation, violation, and displacement. These actions were exemplified for blacks by the fear of the Ku Klux Klan, racial separation of the town, and the many incidents in belittling blacks. Maya knows that to be black and female is to be faced with violence and violation. This is brought into focus when she goes to live with her mother and is raped by her mother’s boyfriend. When Maya is faced with this catastrophe, tells who did this to her, and the man is killed, she believes her voice killed him. She withdraws into herself and vows never to speak again. Her mother feeling that she has done everything in her power to make Maya talk, but can cannot reach her, sends Maya and her brother back to Stamps. After Maya returns to Stamps and with the help of her Teacher-Ms. Flowers she begins to speak again. The culmination of the novel is when Maya describes her eighth grade graduation. Angelou, her classmates, and parents listen to the condescending and racist manner in which the guest speaker talks. After listening to his insults, Maya realizes "she is the master of her fate" which was expressed in the valedictory address given by her classmate. Maya becomes a single parent at the age of eighteen, bu... ..., the film portrayed the kids being overly whelmed with hatred when they received gifts from their parents. It was like they never knew their parents existed. Another example of the difference between the book and the movie is Mr. Freeman (mother’s boyfriend) was presented as being very reserved with the children. In the movie he was seen as warm, talkative, and friendly towards Maya and her brother. The film also showed Mr. Freeman’s manly behavior by confronting Vivian (Maya’s mother) at her job. However, in the book Mr. Freeman never left the house, he always sat and waited at home for her. Although reality involves a vast supply of details and you can not select them all. Many writers, directors, and artists, emphasis with this information and diminish other information in order to make the novels, movies, plays and etc. more vivid to our imagination.

Promoting effective communication Essay

There are a number of factors to consider when promoting effective communication. When using verbal communication with patients it is important to speak looking at them, speaking slowly and clearly and using simple language,. It is important to note that when working with patients with learning disabilities we have made sure they have understood what I have said. When speaking with colleagues or professionals the language I use can be more complex and often I will speak faster however most factors remain the same, it is still important that information given verbally is clear and concise. An example of this is when this is when I have mentored new staff I make sure I talk over everything slowly and clearly and I also get then to repeat some of that information back to show they have understood. Verbally communicating in this way will differ dependant on weather I am talking on a one to one basis or to a group. If I am talking to a group I must remember to address everyone and not exclude anyone. When using non-verbal communication there are many different factors to consider. For example, if I am slummed back in a chair, it may show that I am not interested in the conversation. Eye contact is also very important as this can show that I am engaged in the conversation, other things to consider would be hand gestures, body language and facial expressions, for example, if I frown or have my arms folded I may give a negative impression. Finally it is important to remember that for effective communication to take place it involves both parties to be engaged. Being able to listen well is vital in a two way conversations.

The United States Federal Government - 1346 Words

The United States federal government is composed of three institutions, the Congress, the President, and the Supreme Court. Based on the Constitution of the United States, the federal system, and the separation of power, the three branches exist and each represents the three institutions, the legislative branch is vested by the Congress, the judicial branch is vested by the Supreme Court, and the executive branch is vested by the President. The three distinct branches are respectively independent of each other, providing checks and balances, and preventing the abuse of power existed in the government. The federal government and state government divide the power of the Unites States government. In order to ensure citizens are close enough to the government, the drafters of the Constitution must not deprive the principle of freedom from its citizen and have to retain state’s autonomy. Meanwhile, each state has its own written constitution, and the state constitution contains pro visions for the local government within the state. Congress holds the highest legislative power in the United States, and the Congress consists of the Senate and the House of Representatives. All legislation is subject to be passed by both the Senate and the House of Representatives, and to be made effective by the presidential signature after it is passed. Every year, Congress has thousands of pieces of legislation proposals; however, only hundreds of legislation become laws. A bill from drafting toShow MoreRelatedThe United States Federal Government942 Words   |  4 PagesThe United States federal government should limit the influx of refugees into the United States. Currently, three different entities oversee the United States Refugee Admissions Program. These entities are the Bureau of Population, Refugees, and Migration, which falls under the Department of State, The Office of Refugee Resettlement, which is headed up by the Department of Health and Human Services, and select offices within the Department of Homeland Security. U.S. Citizenship and Immigration ServicesRead MoreFederal Government And The United States1498 Words   |  6 Pages Federal Government The United States of America government is called the federal government and is the republic of the fifty states which constitute the United States. It also constitutes the capital districts and several other territories. Now the government is made up of three different branches and they are the Executive, Legislature, and the Judicial. Those powers are all vested by the US constitution which is in the congress, the president, and also the federal court that also includesRead MoreThe United States And The Federal Government1057 Words   |  5 Pagesemploying over one hundred and fifty eight million in the year 2011 were in the workforce based on the United States, Bureau of Labor Statistics a federal agencies reporting to the Office of Personal Management, known as the federal government. The federal government is a perfect snapshot of how four different generations collaborate and work together, supporting and running our federal government. I think about 911 quite often; my company lost eleven victims was in the office at the World TradeRead MoreThe United States Federal Government Essay910 Words   |  4 PagesTo guarantee a partition of forces, the U.S. Federal Government is comprised of three branches: legislative, executive and judicial. To guarantee the administration is successful and nationals rights are ensured, every branch has its own particular forces and obligations, incorporating working with alternate branches.(Branches of Government  · House.gov n.d.) The legislative branch is comprised of the House and Senate, referred to all in all as the Congress. Among different forces, the legislativeRead MoreThe United States Federal Government1162 Words   |  5 Pagesis the reason why elections entitle an ordinary resident; it allows people to influence the future policies of the government, and people’s future. The United States relies on a complex system of government, where the national government is central but state and local governments utilize control over affairs that are not meant for the federal government. State and local governments have varying degrees of independence in how the organize elections within their jurisdiction, but they hold frequentRead MoreThe United States Federal Government1238 Words   |  5 PagesIntroduction The United States Federal Government collects taxes to finance various services to the citizens. According to Rubin 2013, â€Å"Budgeting implies balance between revenues and expenditures, and it requires some kind of decision-making process.† A budget associates responsibilities to these resources, ensuring that money is available to go to war, infrastructure and to help citizens in need. Politicians, as policymakers evaluate key decision-making processes about revenues and expendituresRead MoreThe United States Federal Government1219 Words   |  5 PagesHow about maybe? In this paper I will outline the problems of the pedagogical approach the United States federal government took in light of the War on Drugs on the wide public education on drug use. I will examine two different articles from Think Progress and The Guardian that argue against the 1986 initiative by Nancy Reagan that became one of the most subtle but destructive aspects about the War on Drugs. She started an country wide program aimed at educating the youth. More specifically onRead MoreRegulation Of The United States Federal Government1827 Words   |  8 Pagesregulation it is important to note that, our government has a huge role in the lives of its citizens it resides over. The United States Federal government has its exercise of sovereignty, in other-words, it has legal and accepted authority to regulate people’s living within a certain geographic area that it has jurisdiction over—and also has regulatory power over, private and public sectors. Here in the United States we have a representative democracy, the government operates as if it is running a serviceRead MoreThe United States Federal Government875 Words   |  4 PagesToday, many Americans are firm believers that the federal government is constantly overreaching and causing citizens to feel harassed and mislead. The idea that the federal government has become overly powerful is exceedingly common throughout the United States. In many cases, the federal government does overstep by inappropriately using the power that they possess. However, there is a fine line between rebelling against the federal government for your own freedom and completely overlooking all ofRead MoreThe United States Federal Government Essay1429 Words   |  6 Pages The quality of life today for most Native Americans is drastically lower than that of the average non-Native American. Why? The United States federal government failed to continue the upward economic trajectory of the Native peoples. The aid and reconciliation Calvin Coolidge desired were not continued successfully. Instead, it is evident that while the Department of the Interior and the Presidential administrations after Coolidge have have had empathy and a desire for the Native Americans’

Astronaut Neil Armstrong Biography

On July 20, 1969, one of the most momentous actions of all time took place not on Earth but on another world. Astronaut Neil Armstrong stepped out of the lunar lander Eagle, descended a ladder, and set foot on the surface of the Moon. Then, he spoke the most famous words of the 20th Century: Its one small step for man, one giant leap for mankind. His action  was the culmination of years of research and development, success and failure, all sustained by both the U.S. and then-Soviet Union in the race to the Moon. Fast Facts: Neil Alden Armstrong Birth: August 5, 1930Death: August 25, 2012Parents: Stephen Koenig Armstrong and Viola Louise EngleSpouse: Married twice, once to Janet Armstrong, then to Carol Held Knight, 1994Children: Karen Armstrong, Eric Armstrong, Mark ArmstrongEducation: Purdue University, Masters Degree from USC.Main Accomplishments: Navy test pilot, NASA astronaut for Gemini missions and Apollo 11, which he commanded. The first person to set foot on the Moon. Early Life Neil Armstrong was born August 5, 1930, on a farm in Wapakoneta, Ohio. His parents, Stephen K. Armstrong and Viola Engel, raised him in a series of towns in Ohio while his father worked as a state auditor. As a youth, Neil held many jobs, but none more exciting than one at the local airport. After starting flying lessons at the age of 15, he got his pilots license on his 16th birthday, before he had even earned a drivers license. After his high school years at Blume High School in Wapakonetica, Armstrong decided to pursue a degree in aeronautical engineering from Purdue University before committing to serving in the Navy.   In 1949, Armstrong was called to Pensacola Naval Air Station before he could complete his degree. There he earned his wings at the age of 20, the youngest pilot in his squadron. He flew 78 combat mission in Korea, earning three medals, including the Korean Service Medal. Armstrong was sent home before the conclusion of the war and finished his bachelors degree in 1955. Testing New Boundaries After college, Armstrong decided to try his hand as a test pilot. He applied to  National Advisory Committee for Aeronautics (NACA) — the agency that preceded NASA — as a test pilot, but was turned down. So, he took a post at Lewis Flight Propulsion Laboratory in Cleveland, Ohio. However, it was less than a year before Armstrong transferred to Edwards Air Force Base (AFB) in California to work at NACAs High Speed Flight Station. During his tenure at Edwards Armstrong conducted test flights of more than 50 types of experimental aircraft, logging 2,450 hours of flight time. Among his accomplishments in these aircraft, Armstrong was able to achieve speeds of Mach 5.74 (4,000 mph or 6,615 km/h) and an altitude of 63,198 meters (207,500 feet), but in the X-15 aircraft. Armstrong had a technical efficiency in his flying that was the envy of most of his colleagues. However, he was criticized by some of the non-engineering pilots, including Chuck Yeager and Pete Knight, who observed that his technique was too mechanical. They argued that flying was, at least in part, feel, that it was something that didnt come naturally to the engineers. This sometimes got them into trouble. Neil Armstrong was a test pilot before coming to NASA. This shows him at the Dryden Research center in 1960 after he became a NASA research test pilot. He flew missions in the first X-15 rocket plane. NASA   While Armstrong was a comparatively successful test pilot, he was involved in several aerial incidents that didnt work out so well. One of the most famous occurred when he was sent in an F-104 to investigate Delamar Lake as a potential emergency landing site. After an unsuccessful landing damaged the radio and hydraulic system, Armstrong headed toward Nellis Air Force Base. When he tried to land, the tail hook of the plane lowered due to the damaged hydraulic system and caught the arresting wire on the airfield. The plane slid out of control down the runway, dragging the anchor chain along with it. The problems didnt end there. Pilot Milt Thompson was dispatched in an F-104B to retrieve Armstrong. However, Milt had never flown that aircraft and ended up blowing one of the tires during a hard landing. The runway was then closed for the second time that day to clear the landing path of debris. A third aircraft was sent to Nellis, piloted by Bill Dana. But Bill almost landed his T-33 Shooting Star long, prompting Nellis to send the pilots back to Edwards using ground transportation. Crossing Into Space In 1957, Armstrong was selected for the Man In Space Soonest (MISS) program. Then in September 1963, he was selected as the first American civilian to fly in space.   Three years later, Armstrong was the command pilot for the Gemini 8 mission, which launched March 16. Armstrong and his crew performed the first-ever docking with another spacecraft, an unmanned Agena target vehicle. After 6.5 hours in orbit they were able to dock with the craft, but due to complications, they were unable to complete what would have been the third-ever extra-vehicular activity, now referred to as a spacewalk. Armstrong also served as the CAPCOM, who is typically the only person who to communicate directly with the astronauts during missions to space. He did this for the Gemini 11 mission. However, it was not until the Apollo program began that Armstrong again ventured into space. The Apollo Program Armstrong  was  commander of the backup crew of the Apollo 8 mission, though he had been originally scheduled to back-up the Apollo 9 mission. (Had he remained as the  backup commander, he would have been slated to command Apollo 12, not  Apollo 11.) Initially, Buzz Aldrin, the  Lunar Module Pilot, was to be the first to  set foot on the Moon. However, because of the positions of the astronauts in the module, it would require Aldrin to physically crawl over Armstrong to reach the hatch. As such, it was decided that it would be easier for Armstrong to exit the module first upon landing. Apollo 11 touched down on the surface of the Moon on July 20, 1969, at which point Armstrong declared, Houston, Tranquility Base here. The Eagle has landed. Apparently, Armstrong had only seconds of fuel left before the thrusters would cut out. If that had happened, the lander would have plummeted to the surface. That didnt happen, much to everyones relief. Armstrong and Aldrin exchanged congratulations before quickly preparing the lander to launch off the surface in case of an emergency. Humanitys Greatest Achievement On July 20, 1969, Armstrong made his way down the ladder from the Lunar Lander and, upon reaching the bottom declared Im going to step off the LEM now. As his left boot made contact with the surface he then spoke the words that defined a generation, Thats one small step for man, one giant leap for mankind. This grainy, black-and-white image taken on the Moon shows Neil Armstrong about to step off the Eagle lander and onto the surface of the Moon for the first time. NASA   About 15 minutes after exiting the module, Aldrin joined him on the surface and they began investigating the lunar surface. They planted the American flag, collected rock samples, took images and video, and transmitted their impressions back to Earth. The final task carried out by Armstrong was to leave behind a package of memorial items in remembrance of deceased Soviet cosmonauts  Yuri Gagarin  and Vladimir Komarov, and  Apollo 1  astronauts Gus Grissom, Ed White and  Roger Chaffee. All told, Armstrong and Aldrin spent 2.5 hours on the lunar surface, paving the way for other Apollo missions. The astronauts then returned to Earth, splashing down in the Pacific Ocean on July 24, 1969. Armstrong was awarded the Presidential Medal of Freedom, the highest honor bestowed upon civilians, as well as a host of other medals from NASA and other countries. Life After Space Astronaut Neil Armstrong at the Legends of Aerospace event at the Intrepid Sea-Air-Space Museum on March 14, 2010, in NYC. Neilson Barnard/Getty Images for Intrepid Sea, Air, and Space Museum.  Ã‚   After his Moon trip, Neil Armstrong completed a masters degree in aerospace engineering at the University of Southern California and worked  as an administrator with NASA and the Defense Advanced Research Projects Agency (DARPA). He next turned his attention to education and accepted a teaching position at the University of Cincinnati with the Department of Aerospace Engineering. He held this appointment until 1979. Armstrong also served on two investigation panels. The first was after the  Apollo 13  incident, while the second came after the  Challenger explosion. Armstrong lived much of his life after NASA life outside the public eye, and  worked in private industry and consulted for NASA until his retirement. He made occasional public appearances until shortly before his death on August 25, 2012. His ashes were buried at sea in the Atlantic Ocean the following month.  His words and deeds live on in the annals of space exploration, and he was widely admired by space explorers and space enthusiasts around the world. Sources Britannica, The Editors of Encyclopaedia. â€Å"Neil Armstrong.†Encyclopà ¦dia Britannica, Encyclopà ¦dia Britannica, Inc., 1 Aug. 2018, www.britannica.com/biography/Neil-Armstrong.Chaikin, Andrew.A Man on the Moon. Time-Life, 1999.Dunbar, Brian. â€Å"Biography of Neil Armstrong.†NASA, NASA, 10 Mar. 2015, www.nasa.gov/centers/glenn/about/bios/neilabio.html.Wilford, John Noble. â€Å"Neil Armstrong, First Man on the Moon, Dies at 82.†The New York Times, The New York Times, 25 Aug. 2012, www.nytimes.com/2012/08/26/science/space/neil-armstrong-dies-first-man-on-moon.html. Edited by Carolyn Collins Petersen.