Saturday, January 18, 2020
Clothes of the future Essay
With this new time and age of technological advancements, the manufacturing of smart clothes has brought about a textile revolution. This involves the integration of electronic components and Nano-technology within fabrics and fibres resulting in the birth of intelligent fabrics possessing specific properties. Smart materials are capable of ââ¬Ëthinkingââ¬â¢ and ââ¬Ëactingââ¬â¢ by sensing the conditions of the immediate environment. These are sensitive to the wearerââ¬â¢s body conditions (sweating & trembling), temperature requirements & stability and their movements. Classification of Smart Textiles: Passive Smart Textiles- These can only sense the environment conditions or stimuli, and hence are also known as 1st Generation Smart Textiles. Active Smart Textiles-These 2nd Generation Smart Textiles have both sensors and actuators. The actuators act upon the signal or stimuli detected either directly or from a central control unit. They are chameleonic, water resistant, shape memory, vapor absorbing, heat evolving fabrics or electrically heated suits. Ultra Smart Textiles- These are the 3rd Generation very Smart Textiles which can sense, react, and adopt themselves to the environment conditions and stimuli. Applications of Smart Textile can be very interesting to know. The usage of Smart textiles range from protective wear, sports, medical and fashion to clothes having anti stress properties. Functional Textilesâ⬠are designed to serve a specific purpose having added features. Therefore, we now have fabrics that protect against U.V Radiation and anti-bacterial products. Fibres designed with moisture management systems help in quick evaporation of sweat & perspiration. Similarly, there are Reflective Textiles used for preparing safety garments. Some interesting examples of such extraordinary Functional Textiles used today are: The jacket that can see: This technology boasts the development of GPSoverIP Jacket which has an inbuilt mobile phone, an mp3 player at the same time containing features for locating people. The person wearing this jacket can be easily located within buildings with itsââ¬â¢ inbuilt tracking system that works just like a GPS. The Smart Bra: Developed by Wallace et al at the University of Wollongong, the Smart Bra can change its properties according to the breast movement, i.e. it can tighten, loosen the straps,à stiffen or relax itsââ¬â¢ cups to adjust the breast motion, preventing breast pain and sag. This bra is essentially useful for women who are active in sports. Fitness component inside sports underwear: This technology, again is very useful for athletes as it incorporates ââ¬Ëbeat clipââ¬â¢ i.e., a fitness component with a mobile radio connection sewn into sports underwear. It then displays on a mobile phone, the wearersââ¬â¢ fitness conditions such as heart rate signals. Fabric protection against mobile phone radiation: a German engineered fabric using special yarns called ââ¬ËeBlockerââ¬â¢ is being incorporated into the inner pockets of jackets, which absorbs almost 100% of radiation emanating from mobile phones without affecting the functioning of the mobile phone in any way. Sensory baby vest: A team of researchers have improvised a special vest for babies .This special vest has sensors attached to it that help in constant monitoring of the babyââ¬â¢sââ¬â¢ vital organs such as heart, lungs ,skin and at the same time detects body temperature. The sensors are attached such that they, in no way, disturb the baby while it is asleep. Light Emitting: Luminex is a new fabric (non reflective) that can emit light. They are optical capable of illuminating themselves in darkened situations. Developing Future U.S. Soldier Uniforms: DuPont in alliance with Massachusetts Institute of Technology (MIT) attempts to develop materials that would help equip the U.S. soldier of the future with uniforms and gear that keep them safe them against chemical and biological warfare. Engineers and scientists are working to develop ideas such as a uniform that is almost invisible and soft clothing that can become a rigid cast when a soldier breaks his or her leg. Fibres That Can Change Colour and Shape on Command: Smart fibres can function as conductive ââ¬Å"wiresâ⬠and react to signals from electricity, heat or pressure. Researchers are experimenting with different fibre profiles ââ¬â of various shapes ââ¬â that can be made to contract or expand to loosen and tighten clothing to make the wearer warmer or cooler. For example, conductive fibres could change colour on command from an electric signal that changes the reflective quality of specially dyed fibre/cloth Emitting Scents: The Smart Second Skin Dress ââ¬â emitting scents depending on your mood and requirements. One such invention is the ââ¬ËSleep Suitââ¬â¢ which gives out the scent of lavender for insomniacs when they wake to calm the wearer and send them back to sleep. One can manage music and mobile phone from a control panel, with backlit digital display, located externally onà your sleeve. Fashion is moving forwardâ⬠¦and so is technology. As computers keep getting smaller, it enables us to incorporate miniaturised hi-tech components into clothes and shoes. Textile manufacturers have to redefine ââ¬Ëfunctionalityââ¬â¢ and move beyond the historical focus of protection and appearance and find their way onto the high street renamed as ââ¬ËWarp Wearââ¬â¢, ââ¬ËSmart Clothesââ¬â¢ and ââ¬ËE-textilesââ¬â¢.
Friday, January 10, 2020
Li-Fi Technology Essay
I. Introduction Li-Fi or Light Fidelity is a technology that uses light emitting diodes to transmit data wirelessly. It was first demonstrated at a TED talk in 2011 by German physicist Harald Haas. This is a free band that does not need any license. Hence it is cheaper than Wi-FI. Wi-Fi, is a popular technology that allows an electronic device to exchange data or connect to the internetà wirelessly using radio waves the visible light spectrum is larger than the radio spectrum which provides better flexibility in its use. Communications over a very high speed with a theoretical limit of 10 GB per second. The technology is capable of transferring thousands of streams of data simultaneously, in parallel, at higher speeds, with the help of special modulation, using a unique signal processing technology. The term Li-Fi was first used in this context by Harald Haas in his TED Global talk on Visible Light Communication. ââ¬Å"At the heart of this technology is a new generation of high brightness light-e mitting diodesâ⬠, says Harald Haas from the University of Edinburgh, UK,â⬠Very simply, if the LED is on, you transmit a digital 1, if itââ¬â¢s off you transmit a 0,â⬠Haas says, ââ¬Å"They can be switched on and off very quickly, which gives nice opportunities for transmitted dataâ⬠. Fig.1 Harald Haas It is possible to encode data in the light by varying the rate at which the LEDs flicker on and off to give different strings of 1s and 0s.The LED intensity is modulated so rapidly that human eye cannot notice, so the output appears constant. With the use of light radiating diodes Li-Fi technology transfers data through wireless. Li-Fi is a new exemplar for photosensitive wireless technology to provide unprecedented connectivity within a localized data centric environment. There has been a complete shift in wireless technology due to increase demand Li-Fi is such a free band which is license free that is why it is less at cost than Wi-Fi. With the use of special intonation using a distinctive signal processing technology thousands of streams of data can be transferred simultaneously at higher speed. Li- Fi is useful in aircraft because the lights present above head can be used for data transmission. It is useful in controlling traffic at traffic signals as it communicates with LED li ghts of cars. Where there is difficult to amateur optical fibers LI-Fi is used. The new Li-Fi technology can be well managed very easily and it is pretty simple. At one corner you will be having a led which will be working as a light source and on the other corner a Light Sensor or a photo detector. Light Sensor detect light as soon as the LED light starts glowing and will give an output of either binary1 or binary0. [pic] Fig.2 Li-Fi Environment If the LED is on, you transmit a digital 1, if itââ¬â¢s off you transmit a 0. What is VLC? Visible light communication (VLC)-ââ¬Å"A potential solution to the global wireless spectrum shortageâ⬠Li-Fi (Light Fidelity) is a fast and cheap optical version of Wi-Fi, the technology of which is based on Visible Light Communication (VLC).VLC is a data communication medium, which uses visible light between 400 THz (780 nm) and 800 THz (375 nm) as optical carrier for data transmission and illumination. It uses fast pulses of light to transmit information wirelessly. Li-Fi Technology at a Glance! The LED bulb will hold a micro-chip that will do the job of processing the data. The light intensity can be manipulated to send data by tiny changes in amplitude. This technology uses visible spectrum of light, a part of the electromagnetic spectrum that is still not greatly utilized. In fact the technology transfers thousands of streams of data simultaneously, in parallel, in higher speeds with the help of special modulation, using a unique signal processing technology. Some Points of Li-Fi The light used to transmit the data is called D-light by Harald Hass, the inventor of Li-Fi. In future data for laptops, Smartphoneââ¬â¢s, and tablets can be transmitted through the light in a room by using Li-Fi. Security would be a snapââ¬âif you canââ¬â¢t see the light, you canââ¬â¢t access the data. II. CONSTRUCTION The LI-FI product consists of 4 primary sub-assemblies: â⬠¢ Bulb â⬠¢ RF power amplifier circuit (PA) â⬠¢ Printed circuit board (PCB) â⬠¢ Enclosure The PCB controls the electrical inputs and outputs of the lamp and houses the microcontroller used to manage different lamp functions. An RF (radio-frequency) signal is generated by the solid-state PA and is guided into an electric field about the bulb. The high concentration of energy in the electric field vaporizes the contents of the bulb to a plasma state at the bulbââ¬â¢s center; this controlled plasma generates an intense source of light. All of these subassemblies are contained in an aluminum enclosure â⬠¢ FUNCTION OF THE BULB:- At the heart of LI-FI is the bulb sub-assembly where a sealed bulb is embedded in a dielectric material. This design is more reliable than conventional light sources that insert degradable electrodes into the bulb. The dielectric material serves two purposes; first as a waveguide for the RF energy transmitted by the PA and second as an electric field concentrator that focuses energy in the bulb. The energy from the electric field rapidly heats the material in the bulb to a plasma state that emits light of high intensity and full spectrum. The design and construction of the LI-FI light source enable efficiency, long stable life, and full spectrum intensity that is digitally controlled and easy to use. ââ¬Å"There are over 14 billion light bulbs worldwide, they just need to be replaced with LED ones that transmit dataâ⬠. III. HOW LI-FI WORKS? [pic] Fig. 3 block diagram of Li-fi communication In order to know the working of Li-fi we need to know the necessity for Li-fi .With the vast development in living the use of gadgets and invention of new gadgets is increasing which lead to the technological developments. There are many situations in which people get frustrated with the dull performance signals of Wi-Fi at a place with many network connections in seminars conferences etc. Li fi fulfils these needs .this fantabulous idea firstà striked the mind of Harald Haas from University of Edinburgh, UK, in his TED Global talk on VLC.His idea was very simple that if the LED is ââ¬Å"onâ⬠then the digital 1 can be transmitted and if the LED is offâ⬠then the digital 0 can be transmitted. LEDââ¬â¢s can be switched on and off very quick. For transmitting data this way all that we require is LEDââ¬â¢s and controller that code data into Ledââ¬â¢s. Parallel data transmission can be done by using array of LEDââ¬â¢s or by using red, green, blue LEDââ¬â¢s to a lter light frequency with the frequency of different data channel. Advancements and enhancements in this field generate a speed of 10 gbps! But amazingly fast data rates and lowering band widths are not the only reasons that enhance this technology. Li-fi usually is based on light and so it can be probably implemented in aircrafts and hospitals that are prone to inference from radio waves .Unlike Wi-Fi, Li-Fi can work even under-water which makes it more advantageous for military operations. Radio waves are replaced by light waves in data transmission called Li- Fi. Light emitting diodes can be switched on and off very much faster than the human eye allowing the light source to appear continuously. The data transmission is done through binary codes which involve switching on LED can be done by logic 1 and switch off using logic 0.The encoding of information in light can therefore be identified by varying the rate at which the LEDââ¬â¢s flicker on and off to give strings of 0ââ¬â¢s and 1ââ¬â¢s.visible light communication is this method of using rapid pulses of light to transmit information wirelessly. To further get a grasp of Li-Fi consider an IR remote. It sends a single data stream of bits at the rate of 10,000-20,000 bps. Now replace the IR LED with a Light Box containing a large LED array. This system is capable of sending thousands of such streams at very fast rate. Light is inherently safe and can be used in places where radio frequency communication is often deemed problematic, such as in aircraft cabins or hospitals. So visible light communication not only has the potential to solve the problem of lack of spectrum space, but can also enable novel application. T he visible light spectrum is unused; itââ¬â¢s not regulated, and can be used for communication at very high speeds. IV. COMPARISON BETWEEN LI-FI & WI-FI LI-FI is a term of one used to describe visible light communication technology applied to high speed wireless communication. It acquired this name due to the similarity to WI-FI, only using light instead of radio. Li-Fi technology is based on LEDs for the transfer of data. The transfer of the data can be with the help of all kind of light i.e. Light may be Invisible, Ultraviolet or Visible part of spectrum. The speed of the internet is incredibly high and the user everything in just a few minutes. V. ADVANTAGES â⬠¢ Capacity â⬠¢ Availability â⬠¢ Efficiency â⬠¢ High Security â⬠¢ Easy To Use â⬠¢ Fast Data Transfer â⬠¢ Harmlessness â⬠¢ Low-cost VI. DISADVANTAGES: Still there are some backdrops like it can only transmit When in the line of sight well it can be sorted â⬠Visible-light communication: Tripping the light Fantastic: A fast and cheap optical version of Wi-Fi is comingâ⬠, Economist, dated 28Jan 2012 out someday I hope. ââ¬Å"There has been a lot of early hype, and there are some very good applicationsâ⬠. VII. APPLICATIONS 1. Education systems As with the advancement of science the latest technology is the LIFI which is the fastest speed internet access service. So this will leads to the replacement of WIFI at institutions and at companies so that all the people can make use of LIFI with same speed intended in a particular area. 2. Extends our life span As operation theatres do not allow WIFI due to radiation concerns. Usage of WI-FI at hospitals interferes with the mobile and pc which blocks the signals for monitoring equipments. Therefore the replacement for this Wi-Fi is Li-Fi as Hass has mentioned in his TED TALK that LIFI has 10,000 times the spectrum of Wi-Fi. Because the lights are not only al-lowed in operation theatres but also the most dazzling fixtures in the room. 3. Reduction in accident numbers At traffic signals, we can use LIFI in order to communicate with LED lights of the cars by the number of accidents can be reduced. Data can be easily transferred by making use of LIFI lamps with the street lamps. 4. Replacement for others technologies This technology doesnââ¬â¢t deal with radio waves, so it can easily be used in the places where Bluetooth, infrared, WIFI and Internet are banned. In this way, it will be most helpful transferring medium for us. It includes other benefits like: â⬠¢ *A very wide spectrum over visible wave length range. â⬠¢ * Extremely high colour fidelity. â⬠¢ *Instant start time. â⬠¢ *Easy terminal Management. â⬠¢ *Dynamic dark i.e. brightness Modulation of lamp output to enhance video contrast. â⬠¢ *Trouble-free integration into existing light engine platform. â⬠¢ Li-Fi is the upcoming and on growing technology acting as competent for various other developing and already invented technologies. Since light is d major source for transmission in this technology it is very advantageous and implementable in various fields that canââ¬â¢t be done with the Wi-Fi and other technologies. Hence the future applications of the Li-Fi can be predicted and extended to different platforms like education fields, medical field, industrial areas and many other fields. VIII. CONCLUSION The possibilities are numerous and can be explored further. If this technology can be put into practical use, every bulb can be used something like a Wi-Fi hotspot toà transmit wireless data and we will proceed toward theà cleaner, greener, safer and brighter future. The concept of Li-Fi is currently attracting a great deal of interest not least because it may offer a genuine and very efficient alternative to radio-based wireless. As a growing number of people and their many devices access wireless internet, the airwaves are becoming increasingly clogged, making it more and more difficult to get a reliable, high-speed signal. This may solve issues such as the shortage of radio-frequency bandwidth and also allow internet where traditional radio based wireless is not allowed such as aircraft or hospitals. One of the shortcomings however is that it only work in direct line of sight. CONCLUDING REMARKS: â⬠¢ Overcomes the limitations of radio spectrum â⬠¢ High speed of 10 Gbps can be achieved â⬠¢ Lifi can solve the foressential problems of wireless communications these days IX. REFERENCE 1. http://en.wikipedia.org/wiki/Li-Fi 2. http://gimt.edu.in/clientFiles/FILE_REPO/2012/NOV/23/1353645362045/69.pdf 3. http://www.collegelib.com/t-li-fi-technology-seminar-report-abstract.htmlà 4. the-gadgeteer.com/2011/08/29/Li-Fi-internet-at-the speed- of-light/ 5. http://the-gadgeteer.com/2011/08/29/li-fi-internet-at-the-speed-of-light/ 6. http://www.oledcom.com/FR/Press%20release%20MWC2013.pdf 7. ill Li-Fi be the new Wi-Fi?, New Scientist, by Jamie Condliffe, dated 28 July 2011. 8. http://www.eiccit.org/Proceedings/LI-FI%20the%20Latest%20Technology%20in%20Wireless.pdf 9. â⬠Visible-light communication: Tripping the light fantastic: A fast and cheap optical version of Wi-Fi is comingâ⬠, Economist, dated 28Jan 2012 10. http://www.digplanet.com/wiki/Li-Fi
Thursday, January 2, 2020
The Beliefs And Achievements Of Nelson Mandela And...
Sara Peterson Mr. Heitman Global II May 28, 2016 The beliefs and achievements of Nelson Mandela and Mohandas Gandhi have made positive impacts on society throughout global history. They both helped people fight the restrictions against them in order to earn what they deserved; freedom. Mandela never stopped helping people achieve equal rights. Gandhi saw people were being mistreated so he took action by boycotting. Both men fought hard to earn the rights that people sill currently have today. In the 1960s, one of Sharpevilleââ¬â¢s leaders, Nelson Mandela was put in prison for conspiracy. Despite the fact that he was in jail, he continued to lead South Africans against the apartheid government for 27 years. They wanted to rid of passbooks and the fact that if you didnââ¬â¢t carry your with you that you would be beaten or killed. The people of South Africa deserved equal rights; not segregation. Separate facilities was unnecessary and also unfair. Nelson was imprisoned in October of 1962 for treason. People from all over the w orld demanded that he be freed. By the time the 1980s rolled around, the U.S. and the U.K. were strongly pressuring South Africa to set Nelson free and demolish apartheid government. To increase the pressure, people started boycotting buying South African goods. In 1989 the new president of South Africa, known as F.W. de Klerk, rid of the racial segregation. Then, soon enough Nelson Mandela was released from prison in the year of 1990. So Nelson and de KlerkShow MoreRelatedLeadership Styles : Nelson Mandela And Mahatma Gandhi s Peace Movement1209 Words à |à 5 Pagesleadership styles offers a foundation and direction that can be used in future conflicts to evolve positive change. Nelson Mandela and Mahatma Gandhi exemplified to the world that when disharmony shows its ugly face, there can be other ways to fight for change. Mandelaââ¬â¢s efforts in the South African Apartheid beginning in 1948 and ending in 1994, chose forceful recognition while Gandhi working in the Peace Movem ent beginning in 1893 and ending in 1914, lead his people in prayer, fasting and meditationRead MoreEssay on Gandhi`s Passion Towards Helping Indians1125 Words à |à 5 Pagesnbsp;nbsp;nbsp;nbsp;nbsp;Mohandas Gandhi was born in Porbandar, a small coastal town in the western region of British ruled India on October 2, 1867. Gandhiââ¬â¢s father was a politician and served as Prime Minister to a number of local Indian Princes. His mother, Putilibai, was Gandhiââ¬â¢s fatherââ¬â¢s fourth wife. His parents were not well educated but his mother was literate. Despite their educational problems they were well off and owned several houses in Porbandar, and in nearby villages. BecauseRead MoreSummary of Ghandi the Movie6362 Words à |à 26 PagesGandhi was a small Indian man that faced the British Empires policies of injustice, discrimination, and colonial control without using a single punch or bullet, or in any way using violence as a weapon. The fact that he defeated the British Empire by winning Indian Independence is considered as testimony that Gandhi should be given the status of being remembered as a ââ¬Ëgreat manââ¬â¢ in history. Gandhi began his work against the injustices of the British Empire when he was still a young man in SouthRead MoreOne Significant Change That Has Occurred in the World Between 1900 and 2005. Explain the Impact This Change Has Made on Our Lives and Why It Is an Important Change.163893 Words à |à 656 Pagesevolution and natural selection. Although the Christian religion was believed to be a sign of civilizational advance, the ââ¬Å"scientificâ⬠statements of Darwin that darker races and women were less highly evolved determined both attitudes and policy. These beliefs justified sexual aggression and other abuses of all women, and women of color and those in the colonies were especially exploited. The plight of ordinary women of color under colonialism was generally forced labor, prostitution, and relegationRead MoreExploring Corporate Strategy - Case164366 Words à |à 658 Pagesto modern AIDS therapies reached crisis point. When the South African government proposed legislation to allow generic imports of branded drugs, a coalition of 39 ï ¬ rms took legal action. Given the tragic AIDS epidemic and the saintly ï ¬ gure of Nelson Mandela, this was not the best example of industry public relations. The CEO of GlaxoSmithKline, Jean Paul Garnier, helped negotiate the industry out of the court case and established clear principles of operation, adopted by many companies. They would
Wednesday, December 25, 2019
Synthesis Essay The Ohio State University - 1021 Words
Synthesis Essay: Jim Tressel MSgt Greg Frank Air Force Senior Noncommissioned Officer Academy Jim Tressel The Ohio State University is home to one of the best college football teams in America. The university has a rich history where several famous players and coaches have emerged. One famous coach in particular is Jim Tressel, who coached at Ohio State from 2001 until 2011. During his tenure, he had a winning record that came to an abrupt end as a result of multiple ethics violations. Tresselââ¬â¢s full range leadership, critical thinking, team dynamics and ethical behaviors will be examined in this thesis. Based on the information found in the study guides, Tressel is a visionary leader who was not ethical. Despite a lapse in ethics, he led the Buckeyes for nearly a decade with a vision to win, and he did just that. Visionary Leader Using the Full Range Leadership and Team Dynamics lessons, itââ¬â¢s easy to see why Tressel is a visionary leader. He took over for the Buckeyes after a loosing season and multiple losses to Michigan. In the land of Buck-nuts, winning on Saturday after Thanksgiving against Michigan is the most important game of the year. According to the Barnes Center for Enlisted Education, Team Dynamics, mission effectiveness is defined as ââ¬Å"when the team process is executed effectively, a team can be used to pool the ideas and experiences of its members in search for a collective outcome.â⬠(BCEE, 2016d) Tressel not only took a loosingShow MoreRelatedHow Writing Is A Skill That Anyone Can Be Good1161 Words à |à 5 Pagesstyles. Our diction became advanced and eloquent. Utilizing syntax gave essays and papers a new suave in transitioning. We all had experience in writing into each type of genre and essays. Argumentative, synthesis, document-based, and persuasive essays became longer and longer. The motivation to enter college taught us that writing was not a joke anymore but a way to express who we are with a short 500 word essay. Each essay used our knowledge and experiences throughout our lives, it showed all thatRead MoreSynthesis Essay : Joseph Vincent Paterno1407 Words à |à 6 Pages Synthesis Essay ââ¬â Joseph Vincent Paterno MSgt Allen W. Hewitt Air Force Senior Noncommissioned Officer Academy September 10, 2014 Instructor: MSgt Travis Pyle Joe Paterno Picture this, walking down a tunnel into a stadium with 106,000 fans screaming we are PENN STATE! Joe Paterno lived this every Saturday for 46 years. Joseph Vincent Paterno was born 21 December 1926 in Brooklyn, NY. He attended Brown University where he majored in law, while playingRead MoreStatement of Purpose23848 Words à |à 96 PagesOhio Wesleyan Writing Center Founded University Promoting1955 as a hallmark of liberal arts education writing Writing Guidelines Statements of Purpose From the OWU Writing Center in the Sagan Academic Resource Center The OWU Writing Center Corns 316 ââ" ª (740-368-3925) ââ" ª http://writing.owu.edu ââ" ª open Monday-Friday, 9:00 a.m. to 5:00 p.m. Ohio Wesleyan University Writing Center à © 2011 Writing Guidelines for Statements of Purpose Contents Writing Your Statement of Purpose ..........Read More Dorothy L. Sayersââ¬â¢ Gaudy Night Essay5682 Words à |à 23 PagesGaudy, a kind of college reunion.à While at the Gaudy, Harriet discovers disturbing notes on two occasions.à Not giving the occurrence much thought, Harriet returns home.à Later, Harriet receives an invitation from Shrewsbury College, part of Oxford University.à The Senior Common Room members explain that a series of poltergeist-like occurrences have threatened the reputation of the college.à The dons (teachers) ask Harriet for her help in stopping the poison pen and in keeping the whole ordeal a secretRead More Colombian Democracy Essay5929 Words à |à 24 PagesClientelism (1995), Laurence Whiteheadââ¬â¢s, ââ¬Å"Reformsâ⬠(2001), Fernando Cepeda Ulloaââ¬â¢s, ââ¬Å"Colombia: The Governability Crisis,â⬠(2003), Nazih Richaniââ¬â¢s, Systems of Violence: The Political Economy of War and Peace in Colombia (2002), and Ricardo Va rgasââ¬â¢s, ââ¬Å"State, Espirit Mafioso, and Armed Conflict in Colombia,â⬠(2004), I find a blank middle space between security and democracy approaches that renders either narrative inadequate. This void needs filling in to make intelligible the contradictions mediatingRead MoreOrganizational Behaviour Analysis28615 Words à |à 115 PagesORGANISATIONAL ANALYSIS: Notes and essays for the workshop to be held on 15th - 16th Novemeber 2007 at The Marriot Hotel Slough Berkshire SL3 8PT Dr. Lesley Prince, C.Psychol., AFBPsS University of Birmingham November 2007 à © Dr. Lesley Prince 2007. Organisational Analysis: Notes and Essays Page i Page ii Please do not attempt to eat these notes. CONTENTS Introduction to the Workshop Topics And Themes The Nature and Scope of Organisation Theory Levels of Analysis The MetaphoricalRead MoreMasculinity in the Philippines12625 Words à |à 51 Pagesphilippine studies Ateneo de Manila University â⬠¢ Loyola Heights, Quezon City â⬠¢ 1108 Philippines Philippine Commonwealth and Cult of Masculinity Alfred W. Mccoy Philippine Studies vol. 48, no. 3 (2000): 315ââ¬â346 Copyright à © Ateneo de Manila University Philippine Studies is published by the Ateneo de Manila University. Contents may not be copied or sent via email or other means to multiple sites and posted to a listserv without the copyright holderââ¬â¢s written permission. Users may download and printRead More8 stages of social development6628 Words à |à 27 Pagesthey are core adaptive intelligences that ebb and flow, progress and regress, with the capacity to lay on new levels of complexity (value systems) when conditions warrant. Much like an onion, they form layers on layers on layers. There is no final state, no ultimate destination, no utopian paradise. Each stage is but a prelude to the next, then the next, then the next. Each emerging social stage or cultural wave contains a more expansive horizon, a more complex organizing principle, with newly calibratedRead MoreCsr Theories13535 Words à |à 55 Pagesdimensions related to Elisabet Garriga is a PhD student in Management at IESE Business School, University of Navarra, Spain. She holds a degree in Philosophy and another in Economics from the University of Barcelona, Spain. She has taught Business Ethics at the University Pompeu Fabra, Barcelona, for the International Education of Students (IES), a consortium comprised of more than 120 leading US colleges and universities. Her current research focuses on the concept and implementation of Corporate Social ResponsibilitiesRead MoreInformation Technology Implementation Issues: an Analysis45771 Words à |à 184 PagesInformation Technology Implementation Issues: An Analysis Suzanne Beaumaster Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Public Administration and Public Policy John W. Dickey, Chair Larkin Dudley Joseph Rees J. Michael Thomson Gary Wamsley March 24, 1999 Blacksburg, Virginia Copyright 1999, Suzanne Beaumaster Information Technology Implementation
Tuesday, December 17, 2019
The War On Drugs A New Us National Security Doctrine
The enlargement of the concept of security has meant that other issues, additional to ones outlined by the traditional definition, are included in itââ¬â¢s conceptualization. This means that the concept of security has grown to include environmental, economic, and social issues of security which have a big effect on how security is understood in general. Within the domain of social issues, they can be further broken down to include things like the war on drugs, which as a social issue has had a unique effect on the security agenda of states. The modern war on drugs began in the 1970ââ¬â¢s when Nixon declared it a nation wide problem and began to focus on both the supply and demand aspects of drug use. As a geo-political problem the war on drugs can be explained in two ways. The first way, as outlined in Waltraud Moralesââ¬â¢s article The War on Drugs: a New US National Security Doctrine? explores how the United States uses the war on drugs as a front, but the reality of thei r ââ¬Ëwarââ¬Ë is to continue the sphere of influence in their national security doctrines that was present in the era of communism. According to Morales ââ¬Å"anticommunism has functioned as an ideology and a secular region which has legitimized both legal and illegal, moral and immoral acts of foreign policy in the cause of national survival - the protection of democracy and the American way of lifeâ⬠(147), but since the anticommunism discourse has lost traction in recent years, especially since the end of the cold war,Show MoreRelatedThe Legacy of Ronald Reagan1004 Words à |à 5 PagesIran-Contra Affair, which will forever be tied to his name in a negative regard. Within America, Reagan was able to improve society such as his success in curbing the use of illegal drugs. Ronald Reagan is often times cited as the best president the United States has ever had, due to his relentless attacks on communism and illegal drug use in America, even with his involvement in the I ran-Contra Affair. Ronald Reagan was tremendously successful in his pursuit to end communism around the world, and toRead MoreEssay on Freedom of the Press1133 Words à |à 5 PagesSamuel Adams, a radical used the colonial press to resist the Stamp Act and repeal it. He succeeded and soon after the Stamp Act was repealed. After the repeal Adams wrote in the press, ââ¬Å"But YOUR Press has sounded the alarm. YOUR Press has spoken to us the words of truth. It has pointed to this people their danger and their remedy. It has set before them liberty and slaveryâ⬠¦Ã¢â¬ (Illinoisfirstamendmentcenter.com). This showed that Adams was proud of what he accomplished but also saw the power of theRead MoreComparing The 1971 White Paper On Defence And The 2008 Canada First Defence Strategy990 Words à |à 4 Pagesgreatest allies, the alliances Canada supported, and Canadaââ¬â¢s security and defence priorities in the 1970s and under the Canada First Defence Strategy (CFDS). As this paper will demonstrat e, the key differences witnessed in the 1971 White Paper on Defence and in the 2008 Canada First Defence Strategy is in terms of the specificities of the foreign and defence policy presented, the perceived types of threats to national and international security, and the Canadian Forcesââ¬â¢ capability to respond to such majorRead MorePresident Franklin Roosevelt And The United States1699 Words à |à 7 PagesAdministration was criticized for armed intervention in Latin America. The Hoover Administrationââ¬â¢s policies were created to strengthen relations with Latin America; for instance the retraction of the Theodore Rooseveltââ¬â¢s Corollary to the 1823 Monroe Doctrine that stated only the U.S. could gather debts owned by foreigners to countries in the Western hemisphere. It took President Franklin Roosevelt and his administration over 10 years to achieve many of the original Good Neighbor Policy. Roosevelt hadRead MoreAnalysis of Naomi Kleinââ¬â¢s book, The Shock Doct rine: The Rise of Disaster Capitalism1683 Words à |à 7 PagesThe term the Shock Doctrine was created by journalist Naomi Klein in her book The Shock Doctrine: The Rise of Disaster Capitalism which refers to the idea that economic liberalists formed an entire industry take advantage of disasters such as natural disasters or military coups and privatize everything they can get their hands on. The name of this industry is the Disaster Capitalism Complex and it is comprised of the corporations and organizations that see recently shocked areas as ripe for the emplacementRead More The US War on Drugs in Latin America Essay3424 Words à |à 14 PagesThe US War on Drugs in Latin America Introduction The United States has a long history of intervention in the affairs of one itââ¬â¢s southern neighbor, Latin America. The war on drugs has been no exception. An investigation of US relations with Latin America in the period from 1820 to 1960, reveals the war on drugs to be a convenient extension of an almost 200 year-old policy. This investigation focuses on the commercial and political objectives of the US in fighting a war on drugs in LatinRead MoreThe Changes Our Country Has Gone through After 9-111591 Words à |à 6 Pagescannot walk near an airport without seeing security that just didnââ¬â¢t exist before 9/11. I can recall being able to walk all the way to the gate to escort a friend or family member even though I was not flying with them, but that ended very quickly. Of course there were ID checks and metal detectors to go through security, but nowhere near the hassle that it has become today. Congress and President Bush felt something had to be done to increase secur ity at the airports, so the TSA was created. ââ¬Å"TheRead MoreThe War Of The Cold War1737 Words à |à 7 Pages Cold War The Cold War, which is often dated from 1945 to 1989, was a constant state of political and military tension between powers in the West, dominated by the United States with NATO among its allies, and powers in the East, dominated by the Soviet Union along with the Warsaw Pact. The development of Nuclear Weapons and long range shooting missiles by the United States gave a lot of fear and caused mass destruction. The Cold War came about after World War II when America used their atomic bombsRead MoreCompare and Contrast Plessy V. Ferguson and Brown V. Board of Education1897 Words à |à 8 Pagesprogress of American civilization. However, there are different points between Plessy and Brown. Brown v. Board of Education was educational case of black race, but Plessy v. Ferguson is not it; the result of Plessy is isolation but equal, the Brown show us that isolation and unequal. In 1892, Plessy, Louisiana citizen sat in the white man compartment, head of train crew requirements him to the black compartment according to State Of Louisianas rules, Plessy refused. Head of train crew is called policeRead MoreThe Issue Of The Second Amendment1704 Words à |à 7 PagesAmendment that is quoted by both sides is always ââ¬Å"A well-regulated militia being necessary to the security of a free state, the right of the people to keep and bear arms shall not be infringedâ⬠. Did you know that there are actually two versions used by the federal and state government? The only difference is the punctuation. Congress passed, ââ¬Å"A well-regulated Militia, being necessary to the security of a free Sate, the right of the people to keep and bear Arms, shall not be infringedâ⬠. The States
Monday, December 9, 2019
Accounting and Financial Management
Questions: Consider shares in two companies, JAY and KAY, as follows: Expected Return E(R) Standard Deviation s Correlation Coefficient r Share JAY 12% 18% 0.3 Share KAY 24% 32% a) Calculate the covariance between Share JAY and KAY returns. b) What is the expected return and standard deviation of returns on a portfolio comprising 35% in Share JAY and 65% in Share KAY? c) If you wanted to create a portfolio consisting only of these two shares, how much would you need to invest (weights) in each share so that your portfolio return would be equal to 15.6%? Note: do not round. d) Using the weights calculated in part c), calculate the variance and standard deviation of your portfolio. Answers: a). Covariance = 2/3 ( Return abc Average abc ) * ( Return abc Average abc ) (Sample Size) - 1 = 2/3 x [(18-12) x (35-15)] (2)-1 = 2/3 x [(6)] x [(20)] (2) 1 = 2/3 x 240 5 = covariance is 48 b). Expected return and standard deviation = E(RA) = 2/3 0.12 + 1/3 0.18 = 0.5933 (5.93%) = E(RB) = 2/3 0.35 + 1/3 0.34 = 0.34 (3.4%) The expected rate of return for jay is 5.93% The expected rate of return for Kay is 3.4% Calculation of standard deviation SD(RA) = [2/3 (0.12-0.5933)2 + 1/3 (0.12-0.5933)2]0.5= 2.2535 (22.532%) SD(RB) = [2/3 (0.35-0.34)2 + 1/3 (0.35-0.34)2]0.5 = 0.335 (33.5%) c). In order to create a portfolio based on the above two shares a total 70 weights is required to be invested to arrive at 15.60% which will result in variance being 0.01789 and standard deviation will be 13.35% d). Jay Kay Expected return 12 24 Standard Return 18 32 Correlation coefficient -0.3 Weight 1 Expected Return variance Standard Deviation 100 12% 0.0324 18% 90 13.20% 0.02416 15.54% 80 14.40% 0.0193 13.89% 70 15.60% 0.01783 13.35% 60 16.80% 0.01975 14.05% 50 18% 0.02506 15.83% 40 19.20% 0.03375 18.37% 30 20.40% 0.04583 21.41% 20 21.60% 0.0613 24.76% 10 22.80% 0.08016 28.31% 0 24.00% 0.1024 32% Conclusion The preparations of this report require certain formula and it has adhered in terms of prescribed calculations as listed in the study. The reporting period of the report is in accordance with the financial statement, which will be prepared for a minimum period of at least one financial year. The report is consists of presentations and classification of items in the financial instruments which defines that any materiality changes in the above stated calculations. Recommendations This report illustrates the information, which approves for negotiation of convertible bonds for long term basis carrying the interest rate of 10% along with deterring the market price of each of the bonds issued. The current information about the basis of issue of financial instruments is prepared in accordance with the policies and procedures. Bibliography Parrino, R, Kidwell, D, Au Yong, H, Morkel-Kingsbury, N, Dempsey, M Murray, J 2011, Fundamentals of corporate finance, 1st edn, Wiley, Sydney. Parvi, R., 2014, September. Share price of companies listed on WIG20 and their fair value. InEDIS-Publishing Institution of the University of Zilina EIIC3 rd Electronic International Interdisciplinary Conference(pp. 169-177).
Sunday, December 1, 2019
Research Methods in Sociology and Cultural Anthropology Essay Example
Research Methods in Sociology and Cultural Anthropology Paper Anthropology vs Sociology Research Methods These studies that span over a period of years to decades, have the capability to allow collection of a large amount of data over time. Having this additional data can help prove or disprove hypothesis related to changes in the data over time. In Cross Sectional Studies, scientists study a group of individuals with similar traits or characteristics In one observation, at a single time. This method provides Immediate data to analyze. The downside of a Cross Sectional Study Is that there is not much data collected that can show cause and effect. Longitudinal Studies are a form of observational study, where no manipulation of the study or subjects takes place. There are both positives and negatives to the Longitudinal Study. One of the positives, as mentioned earlier, is the study ability to collect large amounts of data. This data can be used to prove or disprove a hypothesis related to change over time. For example, the longest running longitudinal study Is Tartanââ¬â¢s little geniuses, this study has spanned well over 75 years. IN 1921, Dry. Lewis M. Termed, a Stanford university psychologist and a pioneer of the I. Q. Test, scoured Californians schools to identify 1,521 children who scored 135 or over on his new intelligence test, the Stanford-Bines. Additional interviews were conducted every 5 to 10 years on each of the study participants. Over the years more than 100 scientific articles and almost a dozen books have been based on the Termed data. (Coleman) It was not the Initial purpose of the study to produce so much research for review, but due to the length of time allowed for data collection, researchers were able to deduce the information. Cultural Anthropology is another form of Social Science that looks at he cultural influences in a population. P until the 20th century the studies were largely focused on primitive cultures in non-westernizes civilizations. We will write a custom essay sample on Research Methods in Sociology and Cultural Anthropology specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Research Methods in Sociology and Cultural Anthropology specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Research Methods in Sociology and Cultural Anthropology specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Focusing on human natures more primal instincts and how they ultimately effect the groups, or community culture. Two research methods utilized in Cultural Anthropology are Participant Observation and Interviews or Questionnaires. Unlike other forms of research, in participant observation, the researcher can interact with the participants. They may choose immerse themselves into the culture in addition to only observing, in order to gain report and provide a better understanding. When administering interviews or questionnaires, an informal interview approach is preferred. Oftentimes allowing an open dialogue where conversation can continue Deck Ana Torn, wall prove more International tan ten Dalai Ana went answers AT a questionnaire. When performing interviews or providing a questionnaire to subjects, information can oftentimes be one-sided. This methodology has limited data collection ability, in that answers are typically in response to close ended questions and do not allow the participant to elaborate. The data collected by interviews can be more informative by allowing the interviewers to ask open ended questions and ask the subject to elaborate on specific answers. Each of these methods has their strengths. In Cultural Anthropology, the focus is to understand the subjects completely; to determine what drives the culture of the group. When researchers are allowed to immerse themselves in the culture of that group, they gain additional understanding and insight. By following the steps of participant observation the researcher can establish a rapport with the population ND gain additional information through trust. Additionally, the researcher will experience the groupsââ¬â¢ way of life which will also add to further understanding. There are several steps to participant observation after you have established rapport within the group, second you ââ¬Å"do as they doâ⬠. Simply put, you try to live as the group you are observing is living; learn customs, rituals and routines. During this process continue to make observations and record them. The observations you record are then analyzed at the end of the study. One important step for the researcher is to determine the level of immersion. If the researcher immerses themselves too deeply objectivity could be lost and the study results could be biased or skewed. Participant Observation is the primary mode of study in Cultural Anthropology due to its ability to provide a large amount of data, show cause and effect and generally be unbiased. Longitudinal Studies in Sociology and Participant Observation in Cultural Anthropology have their similarities. Both studies are a form of qualitative research. Qualitative research involves the researcher designing the study, then collecting and analyzing the data. Continuity in the researcher is important to the study as there is a relationship established between them and the study participants. In Tartanââ¬â¢s Study, three generations of researchers have managed the study participants in 75 years. Each director has established themselves with the participants and continued the focus of the research. In observational studies, especially those in which the researcher practices immersion, continuity is crucial to the rapport established within the group. That researcher or group of researchers, are collecting data based on their experiences while living within the group. If a researcher only stayed a day or two before trading off with someone else, they would not have time to develop that relationship and could possibly miss collecting valuable data. Contrastingly, each of these methods of research are used differently. When used in Sociology the focus is that of social interactions between groups or within groups of people. How do people interact with each other, what causes them to act the way that they do? In Cultural Anthropology the culture itself is studied. The deep underlying motives for rituals, community hierarchies and beliefs. In a longitudinal study, the researchers follow the participants through their lifetimes, they do not integrate into their life, they do not try to immerse themselves. They simply observe, periodically checking in on the subject at intervals determined to produce an additional data set. For Sociology, perhaps Tanat Interval Is In canola, adolescence Ana can apneas AT adults Perhaps the observations being made are in relation to social development of a male child raised by a single mom? Does the boy have aggressive tendencies, seek male influence, and have difficulty with relationships? All of this information can be collected throughout the length of the study and deductions can be made from the data. The researcher does not insert themselves into the boys life. They merely make observations. They do not directly interfere with the boys development or environment. In an observational study, thatââ¬â¢s exactly what the researcher must do. They must essentially infiltrate the cultural group in which they choose to study. The researcher still must be mindful to not directly interfere, but allowing some immersion will aid in the researchers ability to understand and subsequently interpret the data collected. Each method works as it is intended; each method of observation are frequently used in all areas of research and can be applied in many different ways. As mentioned previously, one single study has managed to produce over 100 separate pieces of work. Many methods of data collection seemingly overlap and itââ¬â¢s up to the researchers in these studies to be aware of the parameters and stay within the boundaries of the study. Doing so will create more factual data to interpret and allow the observations to be recreated, tested and proven.
Subscribe to:
Posts (Atom)