1984 vs Today Essay - 857 Words

1984, a novel by George Orwell, represents a dystopian society in which the people of Oceania are surveilled by the government almost all the time and have no freedoms. Today, citizens of the United States and other countries are watched in a similar way. Though different technological and personal ways of keeping watch on society than 1984, today’s government is also able to monitor most aspects of the people’s life. 1984 might be a dystopian society, but today’s condition seems to be moving towards that controlling state, where the citizens are surveilled by the government at all times. The 1984 community provided many ways to surveill its citizens, one being The Thought Police The Thought Police were undercover operatives who hid†¦show more content†¦Though the consequences of citizen’s actions through technology today are not as severe or are non punishable, they do not take the government’s surveillance as seriously as the citizens of Oceania did in 1984. One NSA system can reach about 75% of all US Internet traffic, communications by foreigners and Americans (Gorman n. pag.). The US governments defense to surveillance claims is that the justification is National Security (Calamur n. pag.)., and this may be true, but the question of the freedom to privacy ratio, as a free nation, is still undecided. One way surveillance is now even more accessible is due to Google Glass. With Google Glass, nobodys pointing a camera... phone. You no longer know if youre being filmed... an unspoken social rule is being violated (Brown 42). and gives the gover nment the ability to see from the point of view of anyone. With most every person you meet having quick access to some sort of recordable technology, it is easy to have your actions recorded or documented without your knowledge. The information can be easily spread around the world without your knowing or permission with just a simple touch. As said before, â€Å".....an unspoken social rule is being violated† (Brown 42), taking away the sense of privacy and security felt by many Americans. Another form of surveillance, used by specifically the NYPD, is the use of undercover cops. Since The Occupy Wall StreetShow MoreRelated texas vs johnson Essay687 Words   |  3 Pages nbsp;nbsp;nbsp;nbsp;nbsp;Texas vs. Johnson A very controversial court case in American history was Texas vs. Johnson (1984). In 1984, a man named Gregory Lee Johnson followed a group of anti – Reagan protesters to oppose the American exploitation of third world countries. This act of rebellion resulted in the burning of the American flag. Out of a total of approximately one hundred demonstrators who were involved in this ordeal, Johnson was solely charged with a crime. Johnson was arrestedRead MoreHuxley V. Orwell1015 Words   |  5 PagesBrave New World v. 1984 June 8, 2011 It is no question that both Huxley and Orwell were displeased with our societal norms by their predictions in Brave New World and 1984. However, the two famous novels could not have differed more in their visions of tomorrow. Huxley portrays a nation of pleasure addicted, mindless beings merely existing. Orwell illustrated such a strict regime that the pursuit of knowledge would be banned and our voices would be silenced. Imagine living in a world withoutRead MoreA Landmark Supreme Court Case856 Words   |  4 Pageseveryday life, and predict how current issues and cases will be affected by past decisions (The Judicial Learning Center, 2012). There are many examples of Supreme Court cases that are considered to be a landmark, but one example is Texas vs. Johnson. Outside of the 1984 Republican National Convention in Dallas, Texas, many people protested President Ronald Reagan’s policies. Among the protestors was one man named Gregory Lee Johnson. This man was so upset by the policies of the President that he burnedRead MoreVideo Gaming And High Performance Gamming Computers1201 Words   |  5 Pagesconsoles. Here I am going to go over why I believe this based on price, functions available, control of functionality, choices of games, and community size. To start off let’s look at the background of video games and how it evolved in to what it is today. Video gaming started becoming popular around the 1970’s when Atari released their pong arcade machine. 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Big Five factors: #1 extraversion vs. introversion, #2 agreeableness vs. antagonism, #3 conscientiousness vs. undirected ness, #4 neuroticism vs. emotional stability, and #5 openness to experience vs. not open to experience. Han’s Eysenck’s and Sir Francis Galton behavior genetics research and Arnold Buss’ three concerns for evolutionary personality theory coinsidedRead MoreThe Trial No Search Warrant1049 Words   |  5 Pagespictures, after police illegally obtained them. At the time Ohio had a statute that made the possession of obscene literature criminal. At Mapp’s trial no search warrant was admitted into evidence, however she was still convicted. The Court citing Wolf vs Colorado found that evidence obtained from an unlawful search and seizure is admissible in criminal prosecution. On appeal, the Supreme Court of th e United States reversed the judgment and remanded the case to the Court. â€Å"unlawful searches and seizure†Read MoreEssay about Utopia Vs. Dystopia959 Words   |  4 Pages Utopia Vs. Dystopia Each person has their own vision of utopia. Utopia means an ideal state, a paradise, a land of enchantment. It has been a central part of the history of ideas in Western Civilization. Philosophers and writers continue to imagine and conceive plans for an ideal state even today. They use models of ideal government to express their ideas on contemporary issues and political conditions. Man has never of comparing the real and ideal, actuality and dream, and the stark facts ofRead MoreThe Sports Career of Wayne Getzky615 Words   |  3 Pagesbeat his record with 109. The second record also known as the â€Å"unbreakable† record was Phil Esposito’s of 76 goals and Gretzky broke it with 92 goals. While being on the Oilers and Gretzky became Captain he led them to 4 Stanley Cups Championship (1984, 1985, 1987, and 1988) in less than 5 years. After the last Championship in 1988 Gretzky finds out that he is being sold to the Los Angeles Kings. After being traded to the Los Angeles Kings where Gretzky brought this team to life, brought peopleRead MoreEducation: The Down Fall of the U.S.1680 Words   |  7 Pagesour society are presently being eroded by a rising tide of mediocrity that threatens our very future as a Nation and a people and If an unfriendly foreign power had attempted to impose on America the mediocre educational performance that exists today, we might well have viewed it as an act of war.†, the report sent off a firestorm of reform efforts at the local, state, and federal levels. Almost thirty years later, has the commission’s recommendations been implemented, or have any of the reform

Throughout civilization, religions have come a long way in...

Throughout civilization, religions have come a long way in impacting modern society and civilization. One of the major Abrahamic religions, Islam, has made many advances and has contributed a variety of concepts, ideas and inventions to western civilization. Most of these contributions have gone unnoticed throughout the years, and have been credited by various people, when in reality Muslim scholars have formulated these concepts. Although some may believe that these contributions are irrelevant, the reality is that most of the everyday concepts humans use all around the world, have been derived from a primarily Islamic school of thought. In 622 CE, a new world religion, Islam, emerged. The founder, a man by the name of Prophet†¦show more content†¦While Europe was struggling during the Dark Ages, Islam was prospering greatly. Muslim intellectual centers were slowly growing over the Asian-African continent. While first only Africa and India were present as the major Islamic areas, the Islamic empire soon grew to the areas of the Indonesian islands and China. This combination of the cultures of the Arabs, Indians, Turks, Chinese, and Persians is contrasting to the popular belief that Islam is a discriminatory race, while actually all of these cultures along with countless smaller groups aided in the contribution of the construction of the Islamic civilization. The main logic behind this intellectual boom in the Islamic civilization is due to the statement made by Prophet Muhammad, which goes as the following: â€Å"the ink of scholars is more precious than the blood of martyrs.† These words from the P rophet served as the impetus of the movement, as scholars from all around attempted to seek out the intellectual treasures hidden within the minds of themselves and their cultures. The unabridged list of the accomplishments made during the Golden Age is too lengthy to mention. However, the major subject areas of advances were in the fields of Science, Mathematics, Medicine, Culture and Education. Science One of the most notable advances in the Islamic Golden age was in the field of science. Scientist everywhere began toShow MoreRelatedThe Decline Of The Roman Civilization1357 Words   |  6 PagesThroughout history, civilizations have risen to and fallen from power. The accomplishments of these peoples are not only important because of their places in history, but also because of the impact that they had on the world. Some of these groups of people were only able to create small, but still important settlements. Others were able to establish large empires that controlled vast areas and directly changed the lives of many who were under their rule. The Roman civilization was one of these massiveRead MoreThe Legacy Of An Empire1357 Words   |  6 PagesThe Legacy of an Empire Throughout history, civilizations have risen to and fallen from power. The accomplishments of these peoples are not important only because of their place in history, but they are also important because of the impact that they had on the world. Some of these groups of people were only able to create small, but still important settlements. Others were able to establish large empires that controlled vast areas and directly changed the lives of many who were under their ruleRead More`` Postman `` : Public Discourse And The Age Of Show Business2291 Words   |  10 PagesAll throughout history we have used metaphors to describe people, places, events and emotions; so it is perfectly fitting to describe the mediums with which we project our ideas as a metaphor as well. This is Neil Postman s basis for his book Amusing Ourselves to Death: Public Discourse in the Age of Show Business. Television and other media outlets have conditioned us to accept entertainment in every aspect of life; but most of all it masks the state of public affairs and politics. Through hisRead MoreWars And The Oppressed : Avoidable Tragedy3179 Words   |  13 PagesKhashayar Hooshiyar Goja Sevo Ali Hussein (213016514) POLS 2950: Tutorial 05 Wednesday, April 15, 2015 Wars and the Oppressed: The avoidable tragedy War leads to oppression and leaves negative implications on all people and societies by impacting the poor, women, children, and nations as a whole. War is a state of violent conflict between one or more groups (Rasenberger 3). Rasenberger defines war as a state of conflict between one group within itself or several groups in combat with each otherRead MoreJob Satisfaction : Traditional And Modern Study4181 Words   |  17 PagesJob Satisfaction: Traditional and modern study In the classic block buster movie from 1956, the legendary actor Charlton Heston playing the role of Moses’ declared to Pharaoh â€Å"Let my people go† (Exodus 5:1, New International Version). This is a reenactment of the Old Testament account from the Book of Exodus, where Moses is referring the Jewish people that are being used as slave labor by the Egyptians to build the pyramids. Archeologists and historians estimate the story of Exodus originated betweenRead MoreTechnology Essay11684 Words   |  47 Pagesthat contribution technology has made to modern life has been really positive and has helped to improve the quality of human lives. The first reason for me to  appreciate the contribution technology made to modern life is just the fact that it enhances daily life to unprecedented levels.   As women increase their roles in society in the last times, daily homework such is cook, make laundry or vacuum take less time to do it than before, and its permits women to dedicate this time to other activitiesRead MoreOrganisational Theory230255 Words   |  922 Pagescomprehensive and reliable guide to organisational theory currently available. What is needed is a text that will give a good idea of the breadth and complexity of this important subject, and this is precisely what McAuley, Duberley and Johnson have provided. They have done some sterling service in bringing together the very diverse strands of work that today qualify as constituting the subject of organisational theory. Whilst their writing is accessible and engaging, their approach is scholarly and seriousRead MoreThe Unhcr13403 Words   |  54 Pagesits expertise to also help many internally displaced by conflict. Less visibly, it has expanded its role in helping stateless people, a largely overlooked group numbe ring millions of people in danger of being denied basic rights because they do not have any citizenship. In some parts of the world, such as Africa and Latin America, the original 1951 mandate has been strengthened by agreement on regional legal instruments. In 1954, the new organization won the Nobel Peace Prize for its ground-breakingRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 Pagesrequest to 201-236-3290. Many of the designations by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and the publisher was aware of a trademark claim, the designations have been printed in initial caps or all caps. Library of Congress Cataloging-in-Publication Data Robbins, Stephen P. Organizational behavior / Stephen P. Robbins, Timothy A. Judge. — 15th ed. p. cm. Includes indexes. ISBN-13: 978-0-13-283487-2 ISBN-10:

Theodore Roosevelt Free Essays

Theodore Roosevelt as the 26th president of the United States and also the youngest president ever elected, Theodore Roosevelt faced many challenging decisions, but he knew how to handle them. He fought for what he believed and never backed down from that belief. Theodore Roosevelt faced challenging circumstances while growing up which made many consider him to be frail and not likely to succeed; however, he came to be known as a notable statesman, military leader, governor, vice-president of the United States, and finally the most powerful leader in the free world, President of the United States of America. We will write a custom essay sample on Theodore Roosevelt or any similar topic only for you Order Now This  biography  covers Roosevelt’s life from  birth  until he gains the presidency. Early in life young Theodore, Teedie, Roosevelt suffers from a variety of illnesses. His father admonishes him that physical activity serves as the surest cure. Against doctor’s orders, Roosevelt embarks on a physical regimen that in fact strengths him, mind and body. Roosevelt  moves  on to Harvard, where he meets and marries Alice Lee. He quickly gains access to politics as a young  New York  state assemblyman. He enjoys moderate  success  in the assembly, though he suffers, at once, the loss of his wife and mother. His father dies while Roosevelt attends Harvard. Feeling alone, Roosevelt travels west. Time in the west broadens Roosevelt’s desire for expansion, both personal and national. He gains acquaintances that prove  valuable  later in life. As a child, Theodore developed a passion for the natural sciences. This passion remained constant in his life through college where he planned to study to become a scientist at Harvard University. During college, Theodore Roosevelt met his first wife, Alice Lee, who he married in 1880. Tragically, Alice died from Bright’s disease, on Valentines Day in 1884 only days after the birth of their first daughter. Even worse, his mother also died on the same day from a typhoid fever. These events caused much heartache for Theodore Roosevelt causing him to bury himself into his work. Already a member of the state assembly at this point, Theodore Roosevelt created a bill known as The Reform Charter Bill. This bill helped to eliminate corruption, changing political procedure altogether. In addition, he began to serve as a delegate for the National Republican Convention. This task helped him compensate much of his time, helping him cope with the grief caused by the loss of his wife and his mother. After serving at the Republican National Convention, Theodore Roosevelt moved out West to North Dakota, where he lived as a ranchman for several years. These experiences helped to offset the public opinion of Theodore Roosevelt, proving that just because he was raised in a wealthy and privileged family didn’t mean that he wasn’t a hard worker. Eventually, he grew tired of working on the ranch and moved back home to pursue his political goals. Upon his return to New York, Theodore Roosevelt moved to his house located in Oyster Bay where he married his second wife, Edith Carow. Theodore Roosevelt’s family ancestors were successful Dutch glass importers that were one of New York’s leading families in the late 1800s. His father, also named Theodore, pursued a life of civic and charitable activities. Theodore senior founded the Metropolitan Museum of Art and the American Museum of Natural History. Theodore Roosevelt became governor of New York in 1898 and the Vice President of the U. S. A. soon after. He also led the conservative movement that contested to preserve the use of natural resources. Theodore Roosevelt was also a Lieutenant Colonial of the Rough Rider Regiment. After achieving these goals, he became the youngest president in the history of the U. S. A. Theodore Roosevelt became president in September 1901 after the assassination of William McKinley. Although he had been vice president under McKinley, Roosevelt did not share McKinley’s conservative, pro-business policies. Instead, as president, Roosevelt advanced aggressive political reforms, including the heavy regulation of business. Known as the â€Å"trust-buster,† Roosevelt was the first president to successfully invoke the  Sherman Antitrust Act  against monopolies and continued to restrict businesses throughout his presidency. His reforms greatly influenced economic, environmental, and international affairs as well. Roosevelt’s platform became known as the â€Å"Square Deal† because he vowed not to favor any group of Americans but to be fair to all. Within weeks of arrival in Washington, TR causes a nationwide sensation by becoming the first President to invite a black man to dinner in the White House. Next, he launches his famous prosecution of the Northern Securities Company, and follows up with landmark antitrust legislation. He liberates Cuba, determines the route of the Panama Canal, mediates the great Anthracite Strike, and resolves the Venezuela Crisis of 1902-1903 with such masterful secrecy that the world at large is unaware how near the United States and Germany have come to war. During an epic national tour in the spring of 1903, TR’s conservation philosophy (his single greatest gift to posterity) comes into full flower. He also bestows on countless Americans the richness of a personality without parallel–evangelical and passionate, yet lusty and funny; adroitly political, winningly natural, intellectually overwhelming. The most famous father of his time, he is adored by his six children (although beautiful, willful â€Å"Princess† Alice rebelled against him) and accepted as an honorary member of the White House Gang of seditious small boys. Theodore Rex, full of cinematic detail, moves with the exhilarating pace of a novel, yet it rides on a granite base of scholarship. TR’s own voice is constantly heard, as the President was a gifted letter writer and raconteur. Also heard are the many witticisms, sometimes mocking, yet always affectionate, of such Roosevelt intimates as Henry Adams, John Hay, and Elihu Root. (â€Å"Theodore is never sober,† said Adams, â€Å"only he is drunk with himself and not with rum. â€Å") TR’s speed of thought and action, and his total command of all aspects of presidential leadership, from bureaucratic subterfuge to manipulation of the press, make him all but invincible in 1904, when he wins a second term by a historic landslide. Surprisingly, this victory transforms him from a patrician conservative to a progressive, responsible between 1905 and 1908 for a raft of enlightened legislation, including the Pure Food and Employer Liability acts. Even more surprising, to critics who have caricatured TR as a swinger of the Big Stick, is his emergence as a diplomat. He wins the Nobel Peace Prize for bringing about an end to the Russo-Japanese War in 1905. Interspersed with many stories of Rooseveltian triumphs are some bitter episodes-notably a devastating lynching-that remind us of America’s deep prejudices and fears. Theodore Rex  does not attempt to justify TR’s notorious action following the Brownsville Incident of 1906–his worst mistake as President-but neither does this resolutely honest biography indulge in the easy wisdom of hindsight. It is written throughout in real time, reflecting the world as TR saw it. By the final chapter, as the great â€Å"Teddy† prepares to quit the White House in 1909, it will be a hard-hearted reader who does not share the sentiment of Henry Adams: â€Å"The old house will seem dull and sad when my Theodore has gone. â€Å" How to cite Theodore Roosevelt, Essay examples

Information Security and Risk Management

Question: Discuss about theInformation Security and Risk Management. Answer: Introduction As per the given scenario, Hillside Hospital is a 100 bed hospital and it provides various facilities to its patients such as emergency care, maternal and child health, chronic disease management with different specialists. Besides this, other facilities such as radiology, pharmacy, rehabilitation services are also provided by Hillside Hospital. For take care of patients, several healthcare providers are available in hospital such as specialist, registrars, medical officers, nurses and physiotherapist. It is also found that some of the staff members in the hospital are involved in medical research and clinical trial and for their research they need to use patients information from system. In this case, as a member of IT Expert Team, my team is concerned about management of security of information in hospitals environment. The sensitive information is stored into database, so it is necessary to maintain its security and privacy from unauthorized access of data. The purpose of making t his report is to design a security and risk management solution that can fulfill security requirements of hospital. The security and risk management plan will include Planning and Policy, Developing of Security Program, Risk Management and Protection Mechanism. Here in this report, we will discuss in detail planning and policy of security and risk management solution. Discussion The planning and policy of security and risk management solution should be effectively described so that it can be implemented effectively in hospital (Security Intelligence, 2017). Planning and Policy of Security and Risk Management Solution To protect information that is stored into hospitals database, we have made an effective plan that includes mission, vision, key components, policy, purpose, scope, information security requirements and policy details (Hinkel, 2017). Planning According to requirements of Hillside hospital for information security, we have planned to use security techniques such as cryptography to store encrypted data into database, implementation of strict security policies in hospitals, restricted access of database and periodic monitoring of database by administrator (Protectivesecurity.govt.nz, 2017). Mission The mission of Hillside hospital is to keep information with appropriate security and privacy with authorized access of data. It is matter of trust of people who have provided their information to store into hospitals database. Vision Hillside Hospital has vision to use advanced storage techniques in highly secure way to store huge amount of information. Besides this, hospital also wants to control security and privacy issues of information system at large extent by using advanced security tools and techniques (Nttsecurity.com, 2017). Key Components The key components of security and risk management solution are listed as below: Identification of assets that need to be protected such as customers information, critical business processes etc. and why protection is necessary of these assets? Identification of major threats to assets and what could happen with identified assets. Rank the identified threats by both probability and their impacts. Identify what types of controls will be suitable for protecting assets. Testing of accuracy and effectiveness of controls Proper monitoring of all process periodically (Securitymagazine.com, 2017). Policy The main policy that we would like to implement in Hillside hospital for information security is that system administrator must set unique login credentials for hospital employees for accessing database and different permissions should be accessed to all according to their post in hospital. Purpose The purpose of making above policy and planning is to enhance security level of hospitals database as much as possible by using modern intelligent security tools and techniques and it is also necessary to get protection from hacking attacks. Scope The scope of this planning and policy is wide because proper implementation of these policies will help every business organization, hospitals and other individuals to make their information secured for long time. Information Security Requirements The main requirements of information security are identification of issues of hospital that are affecting information security, proper organization of security policies and standards, train all employees to implement information security policies and standards and implementation of information security standards. Policy Details As we have provided a brief information about security policy for Hillside Hospital, here is detail about that policy. According to that policy by setting different login credentials for different level employees, low level employees will not have permission to access most sensitive information about top level staff members. This policy will reduce chances of leaking information. Besides this, every activity of employees on their computers while accessing information should be detected by using detection control systems. These systems have some advanced features such as if an employee will try to access unauthorized information from database from his computer then it will send message to administrator. References Security Intelligence. (2017). Key Components of a High-Performing Information Risk Management Program. [online] Available at: https://securityintelligence.com/key-components-of-a-high-performing-information-risk-management-program/ [Accessed 26 Apr. 2017]. Hinkel, T. (2017). 5 Key Elements of Risk Management | Compliance Guru FFIEC Guidance. [online] Complianceguru.com. Available at: https://complianceguru.com/2010/11/5-key-elements-of-risk-management/ [Accessed 26 Apr. 2017]. Betterhealth.vic.gov.au. (2017). Security and safety at hospital. [online] Available at: https://www.betterhealth.vic.gov.au/health/servicesandsupport/security-and-safety-at-hospital [Accessed 26 Apr. 2017]. Nttsecurity.com. (2017). Security Planning and Risk Assessment. [online] Available at: https://www.nttsecurity.com/en/what-we-do/security-planning-and-risk-assessment/ [Accessed 26 Apr. 2017]. Protectivesecurity.govt.nz. (2017). Protective Security Requirements | Information Security Management Protocol. [online] Available at: https://www.protectivesecurity.govt.nz/home/information-security-management-protocol/ [Accessed 26 Apr. 2017]. Securitymagazine.com. (2017). 5 Key Components of a Robust Travel Risk Management Program. [online] Available at: https://www.securitymagazine.com/articles/87898-key-components-of-a-robust-travel-risk-management-program [Accessed 26 Apr. 2017].

The Way of Life free essay sample

Dedicated to Karl C. It was the first week of rifle hunting season in November.I was thirteen and it was the first year I could shoot a deer.I had completed my firearms safety class and I was ready to shoot my first buck.The problem was that I had to wake up at five in the morning.For thirteen year old Kaleb, this was almost unbearable and he wanted to fall asleep again as soon as he could.But, his father would not let him.So, I knew I had to suck it up and make the best out of it. When getting dressed, we put on as many layers as we could.After I was done putting them on, I felt as if I were the Stay-Puft Marshmallow Man.I disliked the feeling of not being able to run or have any flexibility.Once we were dressed, geared up and ready, we went outside and were greeted by the frosty morning breeze. We will write a custom essay sample on The Way of Life or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I could taste the moisture on my tongue as I opened the door.It was pitch black and the only thing I could see was a dim light coming from our old, broken lamp post.So we ended up taking out our flashlights and walking to the shed to grab our rifles.My rifle was a Tikka .270 and my dad’s was a Remington 7mm.Both were accurate and powerful so they punched good sized holes when we shot at our practice targets back home.Before leaving to our stand, my dad gave me another brief on our plan, â€Å"We are going to go to the North Stand.† my dad said, â€Å"Wait on the ground until I’m to the top, then you can climb up.† â€Å"Ok, Dad† I replied. â€Å"Don’t forget about B.R.A.S.S.† â€Å"I remember. Breath, Relax, Aim, Slack, and Stop.† â€Å"And walk with your heels, not your toes.† Annoyed, I replied, â€Å"Dad, for the millionth time, I know.† â€Å"Okay, just making sure you won’t forget anything.† We walked until we reached the stand.Just as planned, Dad walked up first and I followed.To be honest, I was a little scared climbing up it.It was my second time climbing up a ladder that high and I was small compared to the size of the tree stand.But I wasn’t going to wimp out so I gathered my courage and continued up the ladder. Once there, I received a stare from my dad.For a moment, I thought had done something wrong.Then, he calmly put his pointer finger to his lips indicating that we could no longer talk until either our prey was killed or the hunt was over.As we still do today, my dad and I would communicate by hand signals or mouthing out words.We whispered if it was a last resort. The hours went by as we waited for a deer to come in front of us.The sun rose over time and most of the fog disappeared except for a thin, grey layer of haze.My rifle was even colder than before.I signaled Dad for some hand warmers and he gave me some. Around four hours passed and I was losing my patience.It would’ve been ten more minutes before I asked my dad if we could leave the stand.But then we heard a crunch.It was time. Dad peeked out the window to see a six-pointed buck along the right side treeline.I could taste the venison already.I grabbed my rifle from the corner it was leaning against and slowly rested it onto the lower left corner of the window.My B.R.A.S.S. technique was rushing through my head, but I still remained calm and focused.My breathing was controlled, my aim was dead on, my arms were steady, and I was ready to squeeze.I had to make sure I didn’t jerk the trigger otherwise I would anticipate the shot and miss my target like I would sometimes at home.I had to surprise myself with the trigger squeeze.I turned my safety off and was ready to fire. I started to squeeze.My aim was right on target.Then, a sudden kick hit my shoulder as if someone punched me.I smelled the gunpowder.I heard the cracking shot coming out of the barrel.The round had made a slice right through the buck’s stomach.Its guts dropped down the next step it took.I pulled the bolt back and re chambered another round in.The deer was down but not dead.I had to put it out of its misery.I took a second shot. The round made perfect thump as the round traveled right through my prey’s cranium.A perfect head shot. My dad cleared his throat, â€Å"Awesome shot, Kaleb!† Like hungry dogs, we climbed down to examine the scene.As we arrived, I was brutally shocked by the amount of blood and gore that came from the deer.For a second, I doubted myself that I had done a right thing.I had just killed such a beautiful animal.What did this deer do to deserve this?I was confused and unsure of what I did and if it agrees with my morals as a Catholic? I should’ve had a â€Å"one shot, one kill†.But then I came to terms I tried my best and was fast to put the deer out of its misery.It was the way of life.And like any other deer hunt, we repeated the same rituals.We took some pictures, skinned it, hung it up to drain, and waited while sitting back and drinking a nice, cold pop. This time was a little different from the others.I wasn’t helping a friend, family member, or my father skin his deer.This time, it was my turn.As I sat down on our bench with my dad, celebrating and making memories, I realized something.I was finally a hunter.I had gone hunting many times, but this hunt was my hunt.I could finally say I had the power, patience, and skill to kill an animal. It had only taken me six hours to earn the title, Hunter.I was eager to return for the next year and the one after that.I realized this was my escape from the world.To lose myself in a hunt and return joyful, whether I had caught any game or not.It makes me look forward to the day when I can watch as my first son or daughter shoot their first deer.Sharing memories and laughs as I was with my father.Sitting around the fire in the dark of night telling stories until we get tired and decide to hit the hay.Cherishing the last glimpse of the star lit forest until you go back inside.And waking up and doing it all over again.One could say it’s the way of life.

Smart socket Essays

Smart socket Essays Smart socket Essay Smart socket Essay Although ad-hoc solutions exist for some of these problems, it is usually up to the applications user to discover the cause of the connectivity problems and find a solution. In this paper we describe Smokestacks, a communication library that lifts this burden by automatically discovering the connectivity problems and solving them with as little support from the user as possible. Categories and Subject Descriptors: C. 2. 4 [Distributed Systems]: Distributed applications General Terms: Algorithms, Design, Reliability Keywords: Connectivity Problems, Grids, Networking, Parallel Applications 1 . Parallel applications are increasingly run in Grid environments. Unfortunately, on many Grid sites the ability of machines to create or accept network connections is severely limited by network address translation (NAT) [14, 26] or firewalls [15]. There are even sites that completely disallow any direct communication between the compute nodes and the rest of the world (e. G. , the French Grinding system [3]). In addition, multi homing (machines with multiple network addresses) can further complicate connection setup. For parallel applications that require direct communication between their components, these limitations have hampered the transition from traditional multi receptors or cluster systems to Grids. When a combination of Grid sites is used, serious connectivity problems are often encountered. Smokestacks is part of the Ibis project, and can be found at CSS. Vi. Ml/ibis Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or the full citation on the first page. Many problems, however, can only be solved by adapting the application or the communication library it uses. To make matters worse, as soon as the set of Grid systems being used changes, large part of this process needs to be repeated. As a result, running a parallel application on multiple Grid sites can be a strenuous task [34]. In this paper we will describe a solution to this problem: the Smokestacks communication library. The primary focus of Smokestacks is on ease of use. It automatically discovers a wide range of connectivity problems and attempts to solve them with little or no support from the user. Smokestacks combines many known solutions, such as port forwarding, TCP splicing and SSH tunneling, and introduces several new ones that resolve problems with multi homing and machine identification. In 30 connection setup experiments, using 6 different sites worldwide, Smokestacks was always able to establish a connection, while conventional sockets only worked in 6 experiments. Using heuristics and caching, Smokestacks is able to significantly improve the connection setup performance. Smokestacks offers a single integrated solution that hides the complexity of connection setup in Grids behind a simple interface that closely resembles sockets. We will show that it is relatively straightforward to port an existing application to Smokestacks, provided that certain programming guidelines are followed. Smokestacks is not specifically intended for use in parallel applications or Grids. It can also be applied to other distributed applications, such as visualization, cooperative environments, or even consumer applications such as instant messaging, file sharing, or online gaming. However, many of these applications only require a very limited degree of connectivity. Often, clients simply connect to a server in a well-known location, making it relatively easy to apply an ad-hoc solution when a connectivity problem occurs. Parallel applications, however, can be much more challenging. They often require a large number of connections between the participating machines, and each machine must such applications in a Grid environment with limited connectivity is difficult. Therefore, this paper will focus on this domain. N Section 2 we describe the connectivity related problems encountered while running applications on multiple Grid sites. Section 3 describes how these problems are solved in Smokestacks and briefly looks at the programming interface. Section 4 evaluates the performance of Smokestacks, Section 5 describes related work, and Section 6 concludes. 2. CONNECTIVITY PROBLEMS In this section we will give a description of the network related problems that can occur when running a single parallel or distributed application on multiple Grid sites. . 1 Firewalls As described in [1 5], A firewall is an agent which screens network traffic in some way, blocking traffic it believes to be inappropriate, dangerous, or both. . Many sites use firewalls to protect their network from unauthorized access. Firewalls usually allow outbound connections, but block incoming connections, often with the exception of a few welkin ports (e. G. , port 22 for SSH). It is obvious that this inactivity restriction can cause severe problems when running a parallel application on multiple sites. When only a single participating site uses firewall, the connectivity problems can sometimes be solved by ensuring that the connections setups are in the right direction, I. E. , that all required connections between open and firewall machines are initiated at the firewall site. This solution may require changes to the applications or communication libraries, however. Also, if both sites use a firewall, this approach can no longer be used. In this case, a firewall will always be encountered regardless of he connection setup direction. One way to solve the problems is to request an open port range in the firewall. Connectivity can then be restored by adapting the application to only use ports in this range. Besides requiring reconfiguration of the firewall, open ports are also seen as a threat to site security. When both machines are behind a firewall it may still be possible to establish a direct connection using a mechanism called TCP splicing [6, 10, 13, 20]. Simply put, this mechanism works by simultaneously performing a connection setup from both sides. Since this approach requires explicit cooperation teens the machines, some alternative communication channel must be available. . 2 Network Address Translation As described in [21], Network Address Translation is a method by which IP addresses are mapped from one address realm to another, providing transparent routing to end hosts. . NAT was introduced in [12] as a temporary solution to the problem of IPPP address depletion. Although the intended solution for this problem, IPPP, has been available for some time, NAT is still widely used to day. Frequently used [21, 29]. This type of NAT allows outbound connections from sites using riveter addresses, but does not allow incoming connections. Both the IP address (and related fields) and the transport identifier (e. G. , TCP and JODI port numbers) of packets are translated, thereby preventing port number collisions when a set of hosts share a single external address. As mentioned above, NAT only allows outbound network connections. Incoming connections are rejected, since the connection request does not contain enough information to find the destination machine (I. E. , only the external IP address is provided, but that may be shared by many machines). This restriction leads to connectivity problems hat are very similar to those caused by firewalls. Therefore, the solution described in Section 2. 1 (connecting in the right direction) also applies too NAT setup, and fails in a similar way when multiple NAT sites try to interconnect. Although the TCP splicing mechanism can also be used to connect two NAT sites, a more complex algorithm is required to compensate for the port translation performed by NAT [6, 20]. Some NAT implementations have support for port forwarding, where all incoming connections on a certain port can be automatically forwarded to a certain host inside the NAT site. Using mechanisms such as Upon [5], DIF [28], or MEDICO [30], applications can contact the NAT implementation and change the port forwarding rules on demand. Port forwarding lifts many of the restrictions on incoming connections. Unfortunately, Upon is mostly found in consumer devices, MEDICO is still under development, and DIF only supports NAT (and firewall) implementations based on Interfile [1]. As a result, these mechanisms are not (yet) generally usable in Grid applications. Currently, Smokestacks only supports Upon. In addition to causing connection setup problems, NAT also complicates machine identification. Machines in a NAT tit generally use IP addresses in the private range [26]. These addresses are only usable within a local network and are not globally unique. Unfortunately, parallel applications often use a machines IP address to create a unique identifier for that machine. When multiple NAT sites participate in a single parallel run, however, this approach can not be used, since the machine addresses are no longer guaranteed to be unique. 2. 3 Non-routed networks On some sites no direct communication between the compute nodes and the outside world is possible due to a strict separation between the internal and external networks. No aching is accessible, and the connectivity of this machine may be limited by a firewall or NAT. Two of the sites used in Section 4 use such a setup. It is clear that this is a major limitation when the site is used in a parallel application. The only possibility for the compute nodes to communicate with other sites is to use front-end machine as a bridge to the outside world, using, for example, an SSH tunnel or a SOCKS [24] proxy. These are non-trivial to set up, however. 2. 4 Multi Homing When multi-homed machines (I. E. , machines with multiple network addresses) participate in a parallel application, another interesting problem occurs. When creating a connection to such a machine, a choice must be made on which of the possible target addresses to use. The outcome of this choice may depend on the location of the machine that initiates the connection. For example, the front-end machine of a site has two addresses, a public one, reachable over the internet, and a private one used to communicate with the sites compute nodes. As a result, a different address must be used to reach teachings depending on whether the connection originates inside or outside of the site. In [34] we called this the Reverse Routing Problem. Normally, when a multi-homed machine is trying to connect to a single IP address, a routing table on the machine decides which network is used for the outgoing connection. In the example described above the reverse problem is encountered. Instead of having to decide how to exit a multi-homed machine, we must decide on how to enter it. This problem is non-trivial, since the source machine generally does not have enough information available to select the correct target address. As a result, several connection attempts to different addresses of the target may be necessary before a connection can be established. In Section 3. 2 we will describe heuristics that can be used to speed up this process. Multi homing can have a major effect on the implementation of parallel programming libraries. The example above shows that it is not sufficient to use a single address to represent a multi-homed machine. Instead, all addresses must be made available to the other participants of the parallel application. In addition, some of the addresses may be in a private range and refer to a different machine when used in a different site. Therefore, it is also essential to check if a connection was established to the correct machine. 3. SMOKESTACKS In this section we will give an overview of the design, implementation and programming interface of the Smokestacks library, and describe how it solves the problems described in the previous section. 3. 1 Overview Currently, Smokestacks offers four different connection setup mechanisms, Direct, Reverse, Splicing, and Routed. An overview of how these mechanisms solve the connectivity problems described in Section 2. As the table shows, each problem is solved by at least one mechanism. Table 1 : Overview of connectivity problems and their solutions. Connection Setup Mechanism Problems Direct Reverse Splicing Routed Identification X Multi Homing X Single FEW/NAT pox xx Dual MINOT (X) XX No Routing X The machine identification and multi-homing problems are solved by the direct connection setup. As will be explained below, this approach also has limited firewall traversal capabilities (using SSH tunneling), so in certain situations it may succeed in establishing a connection in a single or even a dual firewall setting. In the table these entries are shown between brackets. A reverse connection setup is only capable of creating a connection when a single firewall or NAT limits the connectivity. Splicing is capable of middling both single and dual firewall/NAT configurations. However, this approach is significantly more complex than a reverse connection setup (especially with dual NAT) and may not always succeed. Therefore, reverse connection setup is preferred for single firewall/NAT configurations. A routed connection setup can be used in any situation where the connectivity is limited. Unlike the previous two approaches it does not result in a direct connection. Instead all network traffic is routed via external processes called hubs (explained in Section 3. 3), which may degrade both latency and throughput of the connection. Therefore, the previous mechanisms are preferred. When connecting to or from a machine on a non-routed network, however, a routed connection is the only choice. The Smokestacks implementation is divided into two layers, a low-level Direct Connection Layer, responsible for all actions that can be initiated on a single machine, and a high-level Virtual Connection Layer that uses side-channel communication to implement actions that require cooperation of multiple machines. The direct connection layer is implemented using the standard socket library. The virtual connection layer is implemented using the direct connection layer. Both layers will be explained in more detail below. Currently, Smokestacks is implemented using Java [2]. 3. 2 Direct Connection Layer do not require explicit cooperation between machines, such as determining the local addresses or creating a direct connection. It also supports a limited form of SSH tunneling. 3. 2. 1 Machine Identification During initialization, the direct connection layer starts by scanning all available network interfaces to determine which IP addresses are available to the machine. It then generates a unique machine identifier that contains these addresses, and that can be used to contact the machine. This identifier will automatically be unique if it contains at least one public address. If all addresses are private, however, additional work must be done. A machine that only has private addresses is either in a NAT site or uses a non-routed network. In the first case, a unique identifier can still be generated for the machine by acquiring the external address of the NAT. Provided that this address is public, the combination of external and machine addresses should also be unique, since other machines in the same NAT site should have a different set of private addresses, and all other NAT sites should have different external address. The Smokestacks library will use Upon to discover the external address of the NAT site. If this discovery fails, or if the returned address is not public, a Universally Unique Identifier (JUDI) [23], will be generated and included in the machine identifier, thereby making it unique. 3. 2. 2 Connection Setup Once initialized, the direct connection layer can be used to set up connections to other machines. The identifier of the target machine may contain multiple network addresses, some of which may not be reachable from the current location. The private dresses in the identifier may even refer to a completely different machine, so it is important that the identity of the machine is checked during connection setup. As a result, several connection attempts may be necessary before the correct connection can be established. When multiple target addresses are available, a choice must be made in which order the connection attempts will be performed. Although simply using the addresses in an arbitrary order should always result in a connection (pro-vided that a direct connection is possible), this may not be the most efficient approach. Many Grid sites offer historiographer networks such as Merriment [7] or Infinite [4] in addition to a regular Ethernet network. Using such a network for inter-site communication may significantly improve the applications performance. In general, these fast networks are not routed and use addresses in the private range, while the regular Ethernet networks (often) use public addresses. Therefore, by sorting the target addresses and trying all private ones first, the fast local networks will automatically be selected in sites with such a setup. The drawback of if the connection originates on a different site. This may cause a significant overhead. Therefore, Smokestacks uses a heuristic that sorts the target addresses in relation to the addresses that are available locally. For example, if only a public address is available on the local machine, it is unlikely that it will be able to create a direct connection to a private address of a target. As a result, the connection order public before private is used. This order is also used if both machines have public and private addresses, but the private addresses refer to a different network (e. G. , 10. 0. 0. 10 vs 192. 168. 1. 20). The order private before public is only used if both machines have private addresses in the same range. Section 4 will illustrate the performance benefits of this heuristic. Unfortunately, it is impossible to make a distinction between addresses of the same class. For example, if a target has multiple private addresses, we can not automatically determine which address is best. Therefore, if a certain network is preferred, the user must specify this explicitly. Without this explicit configuration, Smokestacks will still create a direct connection (if possible), and the parallel application will run, but its performance may be suboptimal. When a connection has been established, an identity check s performed to ensure that the correct machine has been reached. This would be a simple comparison if the complete identifier of the target is available, but unfortunately this is not always the case. User provided addresses are often used to bootstrap a parallel application. These addresses are often limited to a single hosannas or IP address, which may only be part of the addresses available to the target machine. Therefore, the identity check used by Smokestacks also allows the use of partial identifiers. Whenever a connection is created, the target machine provides its complete identity o the machine initiating the connection. This machine then checks if both the public and private addresses in the partial identity are a subset of the ones in the complete identity. If so, the partial identity is accepted as a subset of the complete identity, and the connection is established. Note that although the connection is created to a machine that matches the address specified by the user, it is not necessarily the correct machine from the viewpoint of the parallel application. Unfortunately, in such cases it is up to the user to provide an address that contains enough information to reach the correct machine. . 2. 3 Open Port Ranges and Port Forwarding When a firewall has an open port range available, Smokestacks can ensure that all sockets used for incoming connections are bound to a port in this range. There is no way of discovering this range automatically, however, so it must be specified explicitly by the user. In addition, Smokestacks can use the Upon protocol to configure a NAT to do port forwarding, I. E. Automatically forward all incoming connections on a certain external port to a specified internal address. However, as explained before, this protocol is mainly used in consumer devices. In addition to regular network connections, the direct connection layer also has limited support for SSH tunneling. This feature is useful for connecting to machines behind a firewall that allows SSH connections to pass through. It does, however, require a suitabl e SSH setup (I. E. , public key authentication must be enabled). Creating an SSH tunnel is similar to a regular connection setup. The target addresses are sorted and tried consecutively. Instead of using the port specified in the connection setup, however, the default SSH port (I. E. , 22) is used. When a connection is established and the authentication is successful, the receiving SSH daemon is instructed to forward all traffic to the original destination port on the same machine. If this succeeds, the regular identity check will be performed to ensure that the right machine has been reached. Although this approach is useful, it can only be used to set up a tunnel to a different process on the target machine. Using this approach to forward traffic to different machines requires extra information. For example, setting up an SSH tunnel to a compute node of a site through the sites fronted, can only be done if it is clear that the fronted must be contacted in order to reach the target machine. Although this approach is used in some projects [8], the necessary information cannot be obtained automatically and must be provided by the user. Therefore, Smokestacks uses a different approach which will be described in detail in Section 3. 3. 3. 2. Limitations The direct connection layer offers several types of connection setup which have in common that they can be initiated by a single machine. No explicit cooperation between machines is necessary to establish the connection. There are many cases, however, where connectivity is too limited and the direct connection layer cannot be used. In general, direct connections to sites that use NAT or a firewall are not possible. Although SSH tunneling and o pen port ranges alleviate the firewall problems, they require a suitable SSH setup or extra information from the user. Port forwarding reduces the problems with NAT, but is rarely supported in Grid systems. Therefore, these features are of limited use. In the next section we will give a detailed description of the virtual connection layer, which solves these problems. 3. 3 Virtual Connection Layer Like the direct connection layer, the virtual connection layer implements several types of connection setup. It offers a simple, socket-like API and has a modular design, making it easy to extend. Besides a direct module that uses the direct connection layer described above, it contains several modules that offer more advanced types of connection setup. These modules have in common that they cooperation (and thus communication) between the source and target machines in order to establish a connection. As a result, side-channel communication is required to implement these modules. 3. 3. 1 Side-Channel Communication In Smokestacks, side-channel communication is implemented by creating a network f interconnected processes called hubs. These hubs are typically started on the fronted machines of each participating site, so their number is usually small. When a hub is started, the location of one or more other hubs must be provided. Each hub will attempt to setup a connection to the others using the direct connection layer. Although many of these connections may fail to be established, this is not a problem as long as a spanning tree is created that connects all hubs. The hubs use a gossiping protocol to exchange information about themselves and the hubs they know, with the hubs that they are connected to. This way information about each hub quickly spreads to all hubs in the network. Whenever a hub receives information about a hub it has not seen before, it will attempt to set up a connection to this hub. This way, new connections will be discovered automatically. All gossiped information contains a state number indicating the state of the originating machine when the information was sent. Since information from a hub may reach another hub through multiple paths, the state number allows the receiver to decide which information is most recent. By recording the length of the path traversed thus far in he gossiped information, hubs can determine the distance to the sites that they can not reach directly. Whenever a hub receives a piece of information about another hub containing a shorter distance than it has seen so far, it will remember both the distance and the hub from which the information was obtained. This way, we automatically create a distributed routing table with the shortest paths between each pair of hubs. This table is later used to forward application information (as will be described below). When an application is started, the virtual layer on each machine creates a single connection to the hub local to its tit. The location of this hub can either be explicitly species- fled or discovered automatically using JODI multicast. 3. 3. 2 Virtual Addresses The connection to the hub can now be used as a side channel to forward requests to otherwise unreachable machines. To ensure that the target machines can be found, addresses are used, consisting of the machine identifier (see Section 3. 2), a port number, and the identifier of the hub the machine is connected to. All requests for the target machine can then be sent to the local hub, which forwards it in the direction of the target

Economics of Health Care Assignment Example | Topics and Well Written Essays - 1250 words

Economics of Health Care - Assignment Example The statement is false because the incorporation of a subjective utility weight in the calculation of quality-adjusted life years does not affect the question of allocative efficiency. An allocative efficiency deals with the allocation of resources; on the other hand, cost-utility measures the quality of adjusted life years. The use of cost-utility will, therefore, be inappropriate when subjective utility weight is incorporated. According to Hurley (2010, 109), to address the question of allocative efficiency, it requires the use of the cost-benefit analysis. This is because the potential Pareto criterion method is required for the analysis (p.109). The result is negative. This means that the annual costs for carrying out the exercise are very expensive compared to the benefits that the university gets in terms of savings. Basing on the cost-benefit analysis, it is recommended that the university does not carry out the vaccination process. This is because of the high cost of this process. The program does not pass the cost-benefit analysis test because it gives a negative net benefit. Negative net benefit means that the implementation of the exercise would result in losses rather than gain in comparison to the effort used. The theory states that education induces greater taste for health. This means that health and education are causally related in instances where a third factor is missing. Focusing on the graph, it shows that both a better taste for more education and higher levels of learning are caused by the introduction of a third factor such as time. In this case, the lower rate of time leads to a greater investment in both variables resulting in a negatively sloping graph. For this graph, the two are not causal but have a correlation brought in by the introduction of a third factor that affects both variables. Â