Sunday, January 26, 2020

Obfuscated Data Storage For Cloud Environment

Obfuscated Data Storage For Cloud Environment Ravi Pandey, and Kamlesh Chandra Purohit Abstract. Data storage service is one of the most attractive services provided by the cloud service provider. Despite the benefits of cloud computing threat to data confidentiality, integrity and availability may stop the data owner from switching to a cloud environment. Handing over the data to a third party to store and manage may generate data security issues as owner of the data cannot deploy its own security policies in storage service provider’s premises. A storage service provider may misuse the client’s data. In a cloud environment data is stored in the service provider’s premises so there should be a mechanism which hides meaning of the data from the service provider or any other unauthorized entity. In this paper, we propose a mechanism which utilizes some existing schemes like erasure correcting code, AES, SHA256 and some new techniques to achieve data security guarantees against any unauthorized entity. Keywords: Data storage service, cloud computing, erasure correcting code, AES, SHA256. 1. Introduction Cloud computing technology, which is popular for its pay as you go model attracts enterprises and individuals to host their data in a cloud environment. Based on results from IDCs 2012 North American CloudTrack Survey â€Å"more than 30% of organizations expect that within five years, the majority of their IT capability will be delivered through public cloud services and that within three years, they will access 45.5% of IT resources through some form of cloud — public, private, or hybrid†. As Cloud Computing has advantages for both providers and users, it is developing in an amazing pace and predicted to grow and be adopted by a large amount of users in the near future [1]. Cloud storage is an important service of cloud computing, which allows data owners (owners) to move data from their local computing systems to the cloud [2]. The storage space requirement is increasing every day as rate of data generation is very high. According to IDC Digital Universe Study, June 2011, â€Å"In 2011, the amount of information created and replicated will surpass 1.8 zettabytes (1.8 trillion gigabytes), growing by a factor of nine in just five years. That’s nearly as many bits of information in the digital universe as stars in the physical universe†. Various surveys show that the issue of data security is highest among clients who wish to switch their data in the cloud. Existing encryption schemes assure security guarantee for data while traversing in the network, where data resides for very short time. In case of data stored in a cloud environment, data resides for a long time in the service provider’s storage premises, so the service provider or its any employee can attempt brute force attack to get information from the client’s stored data. In a cloud environment there can be some internal attackers like employee of service provider who can behave dishonestly. Some applications stored by other client on the same server may be malicious which try to access data of other clients. Although it becomes difficult for an external attacker to attack intended data as in cloud where data is stored is not known to attacker but they can try to attack any random data. Therefore, client expects a secure network in which client can upload data, an honest service provider and a third party auditor who can take responsibility to check integrity of data stored in cloud server. This paper is extension of our previous paper []. Here we will explain proposed scheme in more detail and we will analyze the complexity of our algorithm. 2. System Model Cloud storage auditing system consists of three entities client, cloud server and third Party auditor. Client is the owner of data to be stored in cloud. Client generates the data to be hosted in cloud and can access, modify or delete the data to be hosted. Cloud storage server stores the data and provides mechanisms to access, modifying or deleting the data. Fig. 1. Cloud data storage architecture. Storage servers are geographically distant located, data is redundantly stored in multiple servers for security reasons. Third party auditor is an authorised system to check integrity of data storage. Data flow in between any pair of entity happens in encrypted form. We know that system is prone to internal and external attacks; other issues like hardware failure, software bugs, networking may also impact the system. We believe that, the third party auditing scheme, proposed by many researcher with some modification can make the whole cloud storage environment more reliable and secure. 3. Design Goal In Existing scheme key problem is that data stored in cloud data storage server is in meaningful manner. Our design goal is to obfuscate data before uploading it to the cloud server. After that we utilize existing data encryption techniques and hashing algorithm for providing user authentication and ensuring data integrity. 4. Proposed Work 4.1. Data Obfuscation Algorithm Let F be the private file, which is to be uploaded in the cloud environment. (we can see file F as an array of bytes from 0 to Flength.) Select a key K, an array of 10 digits from 0 to 9 without any repetition. Initialize 10 files f0,f1,f2,f3,†¦f9., we call them file components. For each byte F[i] of file F, calculate j= i %10; For each j, look for K[j] and append F[i] byte on fK[j] component. Figure 1. Demonstration of the file F, which is to be uploaded in the cloud environment. Figure 2. Demonstration of the key K. Figure 3. Demonstration of the file component fj. 4.2. Program Code for data obfuscation algorithm Program code in python for splitting file in components. count=0 n=0 path=I:\abcd; khol = open(path,rb) clone1=open(I:\115,wb) clone2=open(I:\116,wb) clone3=open(I:\117,wb) clone4=open(I:\120,wb) clone5=open(I:\121,wb) clone6=open(I:\123,wb) clone7=open(I:\124,wb) clone8=open(I:\125,wb) clone9=open(I:\126,wb) myL=[clone3,clone5,clone2,clone7,clone1,clone9,clone4,clone8,clone6] byte=start while byte!=: byte = khol.read(1) n=count%9 count=count+1 if byte: if n==0: clone=myL[0] clone.write(byte) elif n==1: clone=myL[1] clone.write(byte) elif n==2: clone=myL[2] clone.write(byte) elif n==3: clone=myL[3] clone.write(byte) elif n==4: clone=myL[4] clone.write(byte) elif n==5: clone=myL[5] clone.write(byte) elif n==6: clone=myL[6] clone.write(byte) elif n==7: clone=myL[7] clone.write(byte) elif n==8: clone=myL[8] clone.write(byte) else: break khol.close() clone1.close() clone2.close() clone3.close() clone4.close() clone5.close() clone6.close() clone7.close() clone8.close() clone9.close() Program code in python for regenerating main file from components. clone1=open(I:\115,rb) clone2=open(I:\116,rb) clone3=open(I:\117,rb) clone4=open(I:\120,rb) clone5=open(I:\121,rb) clone6=open(I:\123,rb) clone7=open(I:\124,rb) clone8=open(I:\125,rb) clone9=open(I:\126,rb) recover=open(I:\abcd,wb) myL=[clone3,clone5,clone2,clone7,clone1,clone9,clone4,clone8,clone6] byte=start while byte!=: if byte: for x in myL: byte=x.read(1) recover.write(byte) else: break clone1.close() clone2.close() clone3.close() clone4.close() clone5.close() clone6.close() clone7.close() clone8.close() clone9.close() recover.close() 4.3. Erasure Correcting Code After division of File F in 10 components, we use erasure correcting code [] to achieve data availability against byzantine failure. Erasure coding (EC) is a method of data protection in which data is broken into fragments, expanded and encoded withredundantdata pieces and stored across a set of different locations or storage media. Erasure coding creates a mathematicalfunctionto describe asetof numbers so they can be checked for accuracy and recovered if one is lost. Referred to aspolynomial interpolationor oversampling, this is the key concept behind erasure codes. In mathematical terms, the protection offered by erasure coding can be represented in simple form by the following equation: n = k + m. The variable â€Å"k† is the original amount of data or symbols. The variable â€Å"m† stands for the extra or redundant symbols that are added to provide protection from failures. The variable â€Å"n† is the total number of symbols created after the erasure coding process. For instance, in a [10:16] method six extra symbols (m) would be added to the 10 base symbols (k). The 16 data fragments (n) would be spread across 16 drives, nodes or geographic locations. The original file could be reconstructed from 10 verified fragments. 4.4. Component Encryption (AES) Now we can encrypt each file component with AES using 128 bit, 192 bit, or 256 bit key for encryption. 4.5. Token Generation(SHA256) We calculate hash function SHA256 for every data component H(fi)=xi. TheSHA algorithm is a cryptographic hash functionwhich produces a 64 digithash value. We use this token as a challenge token for auditing the storage server. Third party auditor keeps token value of each encrypted file component. File components are identified by a random_number generated by the client. Size of random_number depends on the requirement of the storage space by the client. 4.6. Database description After uploading files in the data storage server the client can delete the files in its local machine. Client keeps database of each file which contains file name, AES encryption password , file distribution password. Besides this for each file client keeps database for file component of that file. It contains random_number associated with each file component. Third party auditor keeps clients id, random_number associated with file components and challenge token corresponding to each component. Storage server stores client id and file component named with random_number generated by the client. 5. Third Party auditing TPA sends random_number to the cloud storage server. On receiving this random_number, cloud storage server calculates hash function of corresponding file component. Storage server encrypts this hash value with a shared key among TPA and storage server and sends encrypted hash value to TPA. TPA matches this received value with its database. If the stored hash value of a file and received hash value are same then file component is stored correctly, otherwise TPA sends alert message to the corresponding client of that file. 6. Algorithm Analysis In this section, we evaluate the complexity of the proposed scheme under the section 4.1. We took files of size 10 kb, 100 kb, 1000 kb and 10,000 kb for analyzing time complexity of the algorithm. Using time function of python we majored repeatedly the time of execution of proposed algorithm. We found that time of execution linearly (O(n)) depends on the size of file. Similarly, we majored time of execution at the time of regeneration of file from its components, and we found that time of regeneration of file is also linearly (O(n)) depends on file size. After execution of algorithm we found that total size of file components generated from the file to be uploaded is equal to the size of original file. In this way proposed scheme do not impose any extra storage burden. 7. Conclusion To ensure cloud data storage security, it is essential to hide meaning of data from all the third party entities like storage service provider and third party auditor. This is only possible when owner of data obfuscate the file to be uploaded in its own machine before uploading. The scheme which we have proposed ensures that information stored in the file cannot be interpreted by the third party auditor and storage service provider. Hence, client’s file is safe from both internal and external attackers. Utilization of existing scheme erasure correcting code ensures security against byzantine failure and use of random_number associated with file components together with secure hash algorithm allows third party auditor to audit file components without sharing any information which can help storage service provider to interpret the meaning of stored file. References Agrawal, R., Srikant, R.: Fast Algorithms for Mining Association Rules. In Proceedings of the 20th International Conference on Very Large Databases. Morgan Kaufmann, Santiago, Chile, 487-499. (1994) Garcia-Molina, H., Ullman, D. J., Widom, J.: Database Systems: The Complete Book. Prentice Hall, New Jersey, USA. (2002) Wang, X., Bettini, C., Brodsky, A., Jajoida, S.: Logical Design for Temporal Databases with Multiple Granularities. ACM Transactions on Database Systems, Vol. 22, No. 2, 115-170. (1997) Bruce, K. B., Cardelli, L., Pierce, B. C.: Comparing Object Encodings. In: Abadi, M., Ito, T. (eds.): Theoretical Aspects of Computer Software. Lecture Notes in Computer Science, Vol. 1281. Springer-Verlag, Berlin Heidelberg New York, 415–438. (1997) van Leeuwen, J. (ed.): Computer Science Today. Recent Trends and Developments. Lecture Notes in Computer Science, Vol. 1000. Springer-Verlag, Berlin Heidelberg New York (1995) Ribià ¨re, M., Charlton, P.: Ontology Overview. Motorola Labs, Paris (2002). [Online]. Available: http://www.fipa.org/docs/input/f-in-00045/f-in-00045.pdf (current October 2003)

Friday, January 17, 2020

Impact of New Technology on Lifestyle and Health Essay

As a start I would like to give a short and simple definition of the concept â€Å"technology†. Technology will, in this case and this paper, refer to any physical object, product, environment, or symbol that has been created by human beings. Another frequently used concept with the same meaning is â€Å"artifact† (Simon, 1969). Technology has had a great impact upon the living conditions of people all over the world. Technology has helped us to perform many tasks safer, faster, and with higher precision than would be possible without its help. Technology has also made us stronger, helped us to travel faster, and made it possible for us to perform tasks that otherwise would be impossible to perform. With the help of technology we can perform many tasks that are dangerous for people to perform, like working in a hostile physical environment, for instance in a contaminated or radioactive environment. Technology has helped us to perform boring manual tasks day and night, every day in the week, even without a coffee brake. Technology has made it possible for us to travel all over the world and reach new destinations, quicker than ever. Soon we might even travel to other planets in our Solar system. The invention of machines, computers and other technological artefacts has improved our mental abilities too. Technology can make us smart (Norman, 1993) by increasing our abilities to remember better, by storing information in different formats, and support our reasoning activities. Thanks to computers we can perform complex calculations quickly, simulate processes of different kind, create art and music, and so on. Technology has also helped us to pick up information that earlier was impossible to pick up. Microscopes and telescopes, only to mention a few technological devices, have made it possible for us to look into worlds that we otherwise would not have any access to. New intelligent hearing aids have helped people with hearing deficits to pick up auditory information better and improved the possibilities to communicate with other people. Technology can improve our abilities to control vehicles of different kind, for instance to improve the ability to steer, brake and shift gears in the car. New technology has been used to create systems that can help drivers to find new destinations, or find the quickest route to known destinations. New technology has also been developed for helping drivers to avoid collisions and other dangerous situations. Technology has made it possible to adapt cars to drivers with functional handicap so that they can drive (nearly?) as safely as drivers without these problems. Technology can help mariners to navigate ships across the Atlantic with high precision, to assist pilots in their task of flying to selected destinations, avoid collisions in the air, control the aircraft, and so on. Process industries, manufacturing industries, energy producing industries can today be controlled with the help of new advanced technology. Technology has had an impact on the way we live, work, enjoy ourselves, and communicate with each other. Thanks to improved transportation systems we can now live at a distance from our working place, and commute to our job. Some of us can work from home thanks to the computer and the ability to send digital messages to different destinations. Thanks to the World Wide Web we can communicate with people at very distant places and arrange virtual meetings. We also have new ways of entertaining ourselves. Technology in the Health sector has made important contributions to the treatment of diseases and with the help of advanced technology it is now possible to save lives in a way that was not possible only a few decades ago. In her key note, professor Axelsson has shown how technology can be used in health care. Soon it may be possible to replace missing limbs with artifacts that can perform the tasks the missing limb should have performed. Changes in lifestyle? I believe we can identify some important changes in our lifestyles that are, at least partly, caused by the technological development. With the focus on human work I believe we can identify the following, and many more changes. A shift from physical to mental workload One important trend in our working life is a shift from physically demanding tasks to mentally demanding tasks. Human work has for a long time been more or less dominated by tasks that were physically demanding. Some of these tasks are still with us, but in many cases new technology can help us to perform them with less physical effort. A farmer, say 150 years ago, performed many manual tasks. Today there exist machines that can help the farmer to perform many of the tasks. A miner used to perform many heavy manual tasks when my father was working as a miner. Today trucks are doing the job, quicker and faster. Instead of performing the physically demanding tasks an operator of a machine has to control the machine and supervise its performance, indicating a shift to a mentally demanding task. A task is mentally demanding if it imposes a workload on our abilities to search for and pick up relevant information, store information, use information to make decisions, solve problems, develop action plans and supervise the performance of action plans. Many working tasks today have the character of being more mentally demanding than physically demanding. A shift towards supervising processes The condition for workers has, in many cases, changed from being in direct contact with the working task to using some kind of technological device to perform the task. This has quite often resulted in a new role for the worker. The new role is more of a supervisor of a process. Examples may be found among pilots who are interacting with a computer, the flight management system, which is performing part of the flying task. Another example can be found among workers in highly automated industrial processes, where an automated system is controlling a large part of the process. Increased complexity The introduction of computers has increased the complexity of many tasks. The amount of information we are forced to process in working life has increased. As a result is it has become harder to understand the way different systems are working. The logic of many systems is hidden in the computer and not possible to inspect directly. Negative impact of technology There are some psychological consequences of the changes that has occurred as a result of new technology. In some cases technology can make us stupid, confused and disoriented. Please let me illustrate this statement by giving a few examples on how technology can confuse us and make us look stupid. Technology that may make us stupid Doors are equipped with some kind of device to open and close them. In some cases it is perfectly obvious how the device works by looking at it. In other cases it might be confusing. There exist doors where the device to open and close the doors are identical in shape, but works completely different. A good design should make it obvious how a door should be opened and the principle of consistency should be used. In some cases it may be extremely important to be able to open doors quickly and without involving higher mental processes. Another example of a violation of the principle of consistency is when you have a door with two locks, and to open the door you must turn the key in different directions in each lock. Still another example can be taken from the medical sector. A number of studies have shown that errors are made in this sector, and that errors tend to occur when patients are given their medicine. One possible explanation to this is that different medicines may be stored in bottles that look very much like each other. An interesting question is how the container for different medicines should be physically designed so that it is easy to distinguish different drugs. An example from the automobile industry has to do with the relationship between controls and, in this case, windows. A good principle, stemming from Gestalt psychology, is that you should place a control of a certain device close to that device. This is called the â€Å"proximity principle†. In some cases this is not done, and controls for the windows in a car might be located far away from the windows. The design of the physical environment is also of interest. When a new living area is created and houses and paths are designed, it is common to find that people living there are not walking on the paths that have been so nicely designed. Instead they quite often are using the shortest route across some sensitive area(s). A simple solution here would be to wait and see where people are walking, and after that decide the paths should be located. In some hotel rooms you must use most of your brain power to figure out how the shower works. The problem in many cases is that the function is hidden, and it is not possible to directly see how the shower must be operated. Technology can be used to supervise people – Big Brother can see you In some cases technology is used to supervise worker’s performance at workplaces. This may increase the stress level of the involved workers, and in some cases increase their stress level, and make them sick. On example comes from call centres. The number of call centres has increased rapidly in Sweden. A common definition of a call centre is a working place where people are engaged in telephone communication with customers and are doing that with the help of computer support. In a call centre the operator’s performance can be effectively supervised with the help of computers. It is possible to measure the number of telephone calls each employee is performing during the working day, and also measure the number of breaks that occur during a working day. A psychological effect of this registration is, sometimes, an increased stress level among the workers. Big Brother can see you! Technology can be used to supervise traffic streams, control traffic streams, and identify speeding drivers. Cameras on the road side are being more and more common in Sweden. Some drivers don’t like being supervised by â€Å"Big Brother† and one solution seems to be the destruction of cameras. Technology can also be used to prevent drunken drivers from using their car. Before the car can be started the driver must exhale (breathe) into a measuring device. If the device detects alcohol in the air then the car will not be possible to start. Some drivers which have been found guilty of driving when intoxicated by alcohol have, as a part of their treatment, accepted to install this kind of device in their car. A follow up study has shown that many of these convicted drivers have stopped using this device. Technology can give an invitation to â€Å"Human Error† Besides making us feel stupid, improper design of technology can cause incidents, accidents, and in the worst case kill people. Please let me illustrate this by using some well known accidents as examples. Three Mile Island, USA. This accident happened in the USA 1971. A problem occurred in the Nuclear Power Plant and the situation gradually developed into something problematic. One, out of many, aspects of this accident is that the alarm systems in the Power Plant were activated, and very soon a large number of alarms and warnings were sounding. This probably increased the stress level of the operators who were trying to understand the problem and what to do with it. A high level of stress is not an optimal condition for solving a complex problem. One problem here was that instead of helping the operators to solve the problem the alarm systems made the situation worse. The crash in Gottrà ¶ra, Sweden. A certain similarity can be found in an accident with a passenger plane in Sweden, 1991. A plane (MD 81) started from Arlanda airport (Stockholm) and soon after the start it lost the power of one engine and shortly thereafter the power of the other engine. The captain’s plan was to fly the plane without the help of the engines (basic flying) and perform an emergency landing on an empty field at a distance from the airport. During the four minutes, from the moment the engines had stopped until the aircraft landed safely (!), the plane was shaking and the instrument panel were blinking. Auditory warnings were activated and a female warning voice was talking continuously. The information from the plane to the captain was chaotic and did not offer any useful help to him. In one interview after the accident the captain stated that on the wish list was a warning system that can offer help in situations of this kind. Not a system that distracts and increases the pilots stress level. In Linkà ¶ping, Sweden, a number of patients were treated with the help of a machine that should purify their blood. A nurse misjudged the information from the machine and by mistake turned the machine off. A number of patients died as a result. The machine was built by some technicians and when it was working correctly a number of indicators (lamps) showed the colour red. Normally red is a colour that is used for warnings of different kind. There are also a number of accidents that have occurred as a result of automation. Automation of some tasks may solve some problems, but can also create new possibilities for errors (Bainbridge, 1987). It has been found that people may have an over trust in automation and believe that an automated system takes care of more that it actually can take care of. Automation can also have the effect that an operator becomes less involved in the control of a system and has a problem to take the control back when so needed. What can we do to avoid the negative sides of technology? In the cases where technology is used to supervise people and this is not totally accepted by people this may be regarded as a political question and should be treated as such. This case will not be discussed further in this paper. In cases where the design of technology has caused problems it is possible to provide some guidelines. Improper design of technology is common when technology is designed without consideration of the user’s needs, abilities and limitations. The following advices can be given: Start the development process of new technology by investigating the needs of the intended users! Perform a task analysis (see for instance Kirwan and Ainsworth, 1993) and try to understand what the users need are in order to perform the task efficiently and safely. Involve the intended users early in the design process! Remember that they have a lot of valuable knowledge concerning the task and how it may be performed. Respect individual differences! There are sometimes large individual variations among users of a technological device and the design should be flexible enough to take care of this variation. Make it possible for users to understand the technical device. If users can understand the way a technical device works (if I push this button, then that will happen) the risk for so called â€Å"human error† will most likely decrease. Use the scientific method – test and test again, until you have eliminated the worst problems. The empirical testing of a technical device should have a high priority. Design for human error! People will, in the long run, get tired, distracted or anything else and make an error. This is sometimes called Murphy’s law – if anything can go wrong then it will, sooner or later. Human beings are not like machines and we have to design with that in mind. A technical device should be designed to make it possible to escape the error that sooner or later will be made. Provide feedback (this happened) and feedforward (that will happen). Feedback and feedforward from a technical device should be clear and easy to understand. This will give the user a possibility to understand the system. If possible introduce an undo function! As mentioned earlier people will make errors and this is an error correcting possibility. Use a system perspective! Any kind of technological equipment will be used in a certain context. Analyse the context and see whether the new artefact can successfully be mixed into the context. These are general rules to follow, and by following them I strongly believe that we can influence the design of technology in such a way that our lifestyles and health will be improved. References Bainbridge, L. (1987). Ironies of Automation. In J. Rasmussen, K. Duncan and J. Leplat (Eds.) New Technology and Human Error, John Wiley & Sons Ltd Kirwan, B., and Ainsworth, L.K. (Eds.) (1993). A guide to task analysis. Taylor & Francis Norman, D.A. (1993). Things that make us smart. PERSEUS BOOKS, USA Reason, J. (1990). Human error. Cambridge university press, USA Simon, H. (1969). The Science of the Artificial. The M.I.T. PRESS

Thursday, January 9, 2020

Animal Farm, By George Orwell - 1039 Words

Some people have jobs simply while trying to figure out what they really want to do in life. Other people are passionate about reporting to work because they deem it their responsibility to God and humanity to do so. The latter group of people have the same challenges, personal flaws, and working environments as those just passing time until something better comes along, but their belief that they are literally supposed to be doing the particular thing they are doing in the particular place they are doing it is a conviction which is necessary to combat the unnecessary evils which can be found in the work place. Although various laws, guidelines, policies, and procedures exist, people are still treated inhumanely. Simply put, wherever there is the presence of people, there will always be the absence of perfection. In Animal Farm, Eric Blair (under the pseudonym George Orwell), presents a veiled, yet poignant exposition and commentary regarding communist Russia under Czar Nicholas. The animals on Manor Farm are upset. They feel like they are exploited by humankind without seeing the fruits of their labor. They revolt, overthrow farmer Jones and his men, and assume control of their own lives, yet it is not long before the animals themselves begin to mimic and emulate humankind. The pigs assume control of the farm, and exploit the others because they assert themselves as the brains of the operation, so to speak. At the conclusion of the revolution, a commandment was establishedShow MoreRelatedAnimal Farm And George Orwell By George Orwell1034 Words   |  5 Pages Eric Arthur Blair, under the pseudonym of George Orwell, composed many novels in his lifetime that were considered both politically rebellious and socially incorrect. Working on the dream since childhood, Orwell would finally gain notoriety as an author with his 1945 novel Animal Farm, which drew on personal experiences and deeply rooted fear to satirically critique Russian communism during its expansion. Noticing the impact he made, he next took to writing the novel 1984, which similarly criticizedRead MoreAnimal Farm By George Orwell1397 Words   |  6 PagesAn important quote by the influential author of Animal Farm, George Orwell, is, â€Å"Every line of serious work that I have written since 1936 has been written, directly or indirectly, against totalitarianism.† George Orwell, a Democratic Socialist, wrote the book Animal Farm as an attack on the Communist country of Russia (â€Å"The Political Ideas of George Orwell,† worldsocialism.org). He had a very strong disliking of Communism and the Socialist party of Russia. However, he insisted on finding the truthRead MoreAnimal Farm, By George Orwell1545 Words   |  7 Pagesallow because an this elite institution of people often use this gear to dominate and oppress society. In George Orwell’s story, Animal Farm, Orwell demonstrates that education is a powerful weapon and is a device that can be used to at least one’s benefit. Living in a world where strength is a straightforward to benefit, the pigs quick use education to govern the relaxation of the animals on the farm to serve themselves worked to their advantage. This story in shows the underlying message that   firstRead MoreAnimal Farm By George Orwell944 Words   |  4 Pageslegs(Orwell 132). He carried a whip in his trotter(Orwell 133). In the novel Animal Farm by George Orwell, animals have the ability to talk and form their own ethos, Animalism. Animal Farm is an intriguing allegory by George Orwell, who is also th e author of 1984, includes many enjoyable elements. More knowledge of the author, his use of allegorical elements, themes, symbols, and the significance in the real world, allows the reader to get more out of this glance into the future. George OrwellRead MoreAnimal Farm, By George Orwell876 Words   |  4 Pagesrebellious animals think no man means freedom and happiness, but they need to think again. The animals of Manor Farm rebel against the farm owner, Mr. Jones, and name it Animal Farm. The animals create Animalism, with seven commandments. As everything seems going well, two of the animals get into a rivalry, and things start changing. Food starts disappearing and commandments are changed, and the power begins to shift. Father of dystopian genre, George Orwell writes an interesting allegory, Animal FarmRead MoreAnimal Farm by George Orwell1100 Words   |  4 PagesIntroduction: Widely acknowledged as a powerful allegory, the 1945 novella Animal Farm, conceived from the satirical mind of acclaimed author George Orwell, is a harrowing fable of a fictional dystopia that critiques the socialist philosophy of Stalin in terms of his leadership of the Soviet Union. Tired of their servitude to man, a group of farm animals revolt and establish their own society, only to be betrayed into worse servitude by their leaders, the pigs, whose initial virtuous intentionsRead MoreAnimal Farm By George Orwell1538 Words   |  7 PagesMecca Animal Farm The Russian Revolution in 1917 shows how a desperate society can be turned into a military superpower filled with terror and chaos. George Orwell uses his book, Animal Farm, to parallel this period of time in history. This book is an allegory of fascism and communism and the negative outcomes. The animals begin with great unity, working toward a common goal. The government then becomes corrupted by the temptations of power. George Orwell uses the characters in Animal Farm to showRead MoreAnimal Farm by George Orwell1175 Words   |  5 PagesAn enthusiastic participant in the Spanish civil war in 1936, George Orwell had a great understanding of the political world and made his strong opinions known through his enlightening literary works, many of which are still read in our modern era. Inspired by the 1917 Russian Revolution and the failed society it resulted in, Animal Farm by George Orwell is an encapsulating tale that epitomises how a free utopian society so idealistic can never be accomplished. The novella exemplifies how influencesRead MoreAnimal Farm, By George Orwell1089 Words   |  5 PagesIn George Orwell’s â€Å"Animal Farm†, the pigs as the farm leaders, use unknown language, invoke scare tactics and create specific laws, thereby enabling them to control other animals, to suit their greedy desires, and to perform actions outside their realm of power. Because of the pigs’ use of broad language, and the implementation of these tactics they are able to get away with avoiding laws, and are able to convince other animals into believing untrue stories that are beneficial to the pigs. The firstRead MoreAnimal Farm, By George Orwell1212 Words   |  5 PagesShe stood there over the dead animals thinking to herself what have we come to? We try to become free but we just enslave ourselves to a so called superior kind. Napoleon killed the animals in front of the whole farm and said that this was to be the punishment for the traitors. Snowball was known as a traitor now and anyone conspiring with him would be killed. Snowball and Napoleon both represent historical characters during the Russian revolution in 1917.Snowball who was one of the smartest pigs

Wednesday, January 1, 2020

Tai Chi Health Benefits - 1177 Words

As a Chinese traditional martial art, Tai Chi Chuan is also called â€Å"meditation in motion† and is famous for its overall health benefits. Although its motion is slow and gentle, it provides good exercise to improve muscle strength, flexibility and aerobic conditioning as other common fitness sports. Besides these, it also offers other benefits that other common sports cannot give us, such as the balance improvement, the reduced probability of falling, relieving depression, easing of Parkinson’s disease and hypertension. Here are some studies that scientists have finished and will prove how Tai chi can improve our well being. The first, practicing Tai chi improves balance. According to NIH—National Institute on Aging, a study was conducted†¦show more content†¦Parkinson’s disease patients gets benefits from Tai Chi as well. According to several studies conducted by ORI—Oregon Research Institute in four Oregon cities, Tai Chi has shown significant benefits for people who have mild-to-moderate Parkinson’s disease. â€Å"These results are clinically significant because they suggest that Tai Chi, a low-to-moderate impact exercise, may be used, as an add-on to current physical therapies, to address some of the key clinical problems in Parkinson’s disease.† said ORI scientist Fuzhong Li, Ph.D. (3). Compared with resistance training and stretching groups, Tai Chi group showed better score in how far they could lean in a direction without losing balance, and also in the ability of body control. Based on the practical advantages, Dr. Li concludes that, â€Å"Usi ng Tai Chi to improve motor dysfunction of Parkinson’s disease - it is a low cost activity that does not require equipment, it can be done anywhere, at any time, and the movements can be easily learned. It can also be incorporated into a rehabilitation setting as part of existing treatment. Similarly, because of its simplicity, certain aspects of this Tai Chi program can also be prescribed to patients as a self-care/home activity.† Not only a cure, but also a control, Tai Chi also helps people with hypertension.Show MoreRelatedTai Chi : A Low Impact Exercise1503 Words   |  7 PagesTai Chi originated in China after a Taoist sage dreamt of a snake and a bird fighting. After his dream this man used the moves he saw in the fight to create Tai Chi. However, the first recognized man to perform Tai Chi was Chen Wang-ting in the 1600’s (Morano, 2003). Tai Chi is considered to be a low-impact exercise in which the movements are relaxed and joints are not strained. 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