The Conservation Of Madagascar And Its Lemurs Biology Essay

The Conservation Of Madagascar And Its Lemurs Biology Essay The extraordinary island of Madagascar is unlike anywhere else on earth. Roughly the size of France, with an area of 226,658 square miles, it is the worlds fourth largest island. It lies in the Indian Ocean, approximatly 250 miles off the coast of Southern Africa. Madagascar, and the tiny island of Comoro, provide the only present-day native habitat to lemurs (Butler, 2009). Nicknamed the 8th Continent because of its diversity of species (Hooper, 2005), Madagascar lacks the dominant form of primates distributed worldwide. Instead, their niche has been filled by an older group of primates, the Lemurs. Due to Madagascars isolation, lemurs have an interesting evolutionary history. Madagascar was originally part of the super continent Gondwanaland. As Gondwanaland began to break apart around 160 million years ago, Madagascar broke away from Africa (Carwardine, 2009). The Island continued to drift, moving away from Africa and by the evolution of monkeys, 17-23 million years ago, Madagascar was already isolated. As highly intelligent and adaptive primates, monkeys, quickly became the dominant primates around the rest of the world. The Strepsirhini, the suborder that includes the lemurs, lorises, bushbabies, and pottos, were driven away and towards extinction by these advanced primates. The lorises, bushbabies, and pottos were able to relatively successfully coexist with the monkeys, largely due to their nocturnal and insectivorous traits. They did not compete with the monkeys; however, the lemur lineage was driven to find a new home, Madagascar (Baines, 1997). As the island of Madagascar drifted futher from Africa, the lemurs were then isolated from the rest of the world and its evolutionary changes. They are now By far the most renowned and diverse group of Madagascars mammals (Sauther, 2009). They have spread throughout Madagascar, filling the niches without much competition or predators. Today lemurs are found in almost all of the ecosystems of Madagascar (Carwardine, 2009), many have adapted in amazing and bizarre ways to ensure their survival. Higher primates or homo-sapiens did not reach Madagascar until around 2,000 years ago, when they learned to navigate the seas (Oldfield, 2002). Once there, humans began to systematically destroy the previously untouched island .15 species of lemur are known to have become be extinct, but many more are thought to have disappeared before they were even discovered. Currently all lemurs are in danger, largely due to habitat destruction and hunting. Madagascars terrain is as diverse as its wildlife with coastal plains, mountain ranges, dramatic escarpments, and dense rainforest. As such, there is a great diversity of ecosystems, each with differing vegetation and therefore: different species. This is usually in accordance with relief, geology and rainfall. The first humans to arrive on Madagascar were the ancestors of the Sakalava people, who originated in Indonesia and now live in the West of the island. These early settlers practiced shifting cultivation, burning the previously untouched vegetation. In the 9th and 13th centuries respectively, the ancestors of the Merina people and Betsileo tribes of Northern Madagascar also arrived from Indonesia, and began farming rice. During the last 1,200 years people from Africa and the Arabian Peninsular have also settled in Madagascar, bringing with them Zebu cattle. Many traditional ceremonies and rituals are based around Zebu cattle, even today many Madagascians measure their wealth by the number of Zebu they own. As such there is now more Zebu than people on Madagascar. Every year vast areas of vegetation are burnt in an attempt to improve pasture for these animals (Oldfield, 2002). In 1895 Madagascar became a French colony. These new settlers began harvesting valuable hardwoods for export, such as ebonies and rosewoods, the harvesting of these trees continues today. The endangered Dalbergia delphinensis tree is one of over 30 rosewoods threatened due to selective felling (Oldfield, 2009). The restricted distribution of this species also coincides with a proposed site for a titanium mine which threatens all the remaining coastal forest in Southeast Madagascar (Kimball, 2009). Also to its detriment, Madagascars rainforests contain valuable minerals, such as gold and sapphires. Attempts to extract these poses further threats. Mining is one of the many threats to Madagascars forests and the many species that rely on them. Wood is also cut for fuel and many logging companies are keen to acquire forest concessions. Another threat is the local form of shifting cultivation known as tavy. Most of Madagascars 13 million human inhabitants depend on the land for their livelihood. Massive amounts of forest are cleared every year by cut and burn techniques for rice cultivation, maize and cassava. Many areas are exhausted of their nutrients and then abandoned, the secondary vegetation that then grows is known as savoka, this is eventually replaced by grassland (Oldfield, 2002). Madagascar is home to a massive 10,000 or so plant species, 80% of which are endemic to the island (Carwardine, 2009). Although Madagascars animal diversity is less striking, many species are unique to the island. Over 250 bird species, nearly half of which are endemic to the island, 300 species of reptiles, over 90% of which are found only on Madagascar (Oldfield, 2002). The islands only amphibians, 178 frog species, all of which are endemic and more than 33 known species of lemur inhabit Madagascar, more than half in its depleting rainforests. According to the Botanist, Henri Perrier de la Bathie, writng in 1921, The once mighty rainforests of Madagascar have declined dramatically. As early as 1921, felling had destroyed ninety per cent of Madagascars forests (Sauther, 2006 ). Biologically, it is regarded as one of the richest areas on the planet (Green, 1990), however, no one has ever managed to make a full evaluation of Madagascars many threatened rainforest species. Conservation-status information on some species of animals and trees has been assembled, but is nowhere near complete. Of the rainforest species of lemurs alone, threatened species include the Indri, as well as the Aye-aye, Hairy-eared Dwarf Lemur, Golden Bamboo Lemur and the Red-bellied Lemur. According to Ian Tattershal in Michelle Sauthers report, Lemurs: Ecology and Adaptations, there is general agreement that the lemurs, including the recently extinct subfossil forms, should be classified into seven families: Cheirogaleidae, the dwarf lemurs with five living genera; Lemuridae, the true lemurs and their close relatives, with five genera (one extinct); Lepilemuridae, with two genera (one extinct); Indriidae, with three living genera, Archaeolemuridae, with two genera (both extinct); Palaeopropithecidae, with four genera (all extinct) and Daubentoniidae, the aye-ayes, with a single living genus and species. Depending on whose classification is accepted, living lemurs may number up to forty different species and possibly even up to seventy two species, if subspecies are included in the count. With these numbers, and despite recent extinctions, Madagascar ranks third highest on the list of high-primate diversity countries worldwide (Sauther, 2009), despite being only one tenth of the size of the world leader, Brazil. All of these species of lemur are endemic to Madagascar. According to the ICUN Red List of Threatened Species, each of these species has different threats to their survival. Many lemurs, such as the Red-ruffed Lemur, and many types of bamboo lemurs are critically endangered. With a drastically reduced habitat there are few left in the wild. The Hairy-eared Dwarf Lemur, Golden-brown Mouse Lemur, and the Black and White Ruffed Lemurs are not as close to extinction, but are listed as endangered. Some of the lemurs listed as vulnerable include the Black Lemur, Crowned Lemur, and a number of Fork-marked Lemurs. Perhaps the most remarkable lemur species have long been extinct. These included the Archaeoindris, which was larger than an adult male gorilla, the Babakotia and the Magaladapsis. All lemurs are protected by law, and in many communities it is considered taboo to kill an Indri, but elsewhere, the Indri, and many other species of lemur, are hunted for food and sometimes sold as bush meat or pets (Carwardne, 2009). Madagascar has suffered environmental degradation over a significant part of its land mass. Once covered with rainforests, most of the Eastern third of Madagascar is now, either barren, or reduced to shrub land. As indigenous vegetation is cut and burned for fuel many areas such as the Spiny forest, which contains many rare plant and animal species endemic to the island, have given way to cactus scrub. Around eighty per cent of the original plant cover has been destroyed and much of the terrain is now degraded grassland (Oldfield, 2002). Each year, a further 1% of Madagascars forests are levelled. This mass deforestation not only affects the land and its inhabitants directly, but also indirectly. Without vegetation to absorb moisture the soil is eroding away at an alarming rate. Enviromental regulations have been in place to protect the forests and species of Madagascar since 1881 and at present, more money is put towards the conservation of Madagascar, than any other part of Africa (Butler, 2009). Madagascar is one of the worlds poorest nations, with a per capita income of approximately $240 per year. About 80 percent of the population are subsistence farmers, many of whom depend entirely on natural capital to support their way of life. The peoples dependency on the land and natural resources is of major consequence to Madagascars ecosystems and endemic biodiversity (Kremen, 2010). The major environmental problems of Madagascar include deforestation, and thus loss of habitat, agricultural fires, erosion and soil degradation and the over exploitation of resources. The deforestation of Madagascar can be mostly attributed to three activities. Tavy, or slash and burn agriculture, logging for timber, and fuel wood and charcoal production. Tavy is a large part of Malagasy culture, and has been since the arrival of humans on the island. It is used to convert tropical rainforest into rice fields. An acre or two of land may be cut or burned; it is then planted with rice. After several years production the land is then left fallow for up to six years before replanting (Kremen, 2010). After several of these cycles the land is exhausted of all its nutrients and no primary vegetation will grow. The land then becomes barren and only scrubs and a few grasses will grow. This vegetation is often insufficient to anchor the soil, especially on slopes, making erosion a problem. According to the ICUN, the high value of Malagasy hardwoods also makes logging for timber a significant problem in many areas of Madagascar, especially in the rainforests of Eastern Madagascar. Even the few areas that are protected are often illegally logged and even the endemic spiny forests of Madagascar are being cut at an alarming rate for charcoal and fuelwood production. Every year, as much as a third of what remains of Madagascars forest burn. Fires set for land clearing and pastureland often spread into adjoining forests ,causing much damage and further reducing the habitat of many species of flora and fauna. For Madagascar, a country that relies on agricultural production as the foundation of its economy, the loss of this soil, due to erosion, is a massive problem. The deforestation of Madagascars central highlands plus weathering has resulted in massive soil erosion accounting for up to 400 tons per year. Every yea,r the cost of environmental damage is approximated to between 100 and 290 billion US dollars. Deforestation represents 75% of this loss and 15% due to the erosion that effects agricultural and pastoral production (Oldfield, 2002). Due to the factors mentioned throughout, and many more, Madagascars species are among the most threatened in the world. Since the arrival of man Madagascar has lost a known 16 species of lemur, including one the size of a gorilla; a pygmy hippo, the largest land bird to ever walk the planet, and giant tortoises, a species that had survived for 200 million years. The ICUN Redlist currently includes 472 Malagasy species at risk of becoming extinct, although this number is probably massively optimistic. Today, Madagascar is arguably the worlds highest conservation priority (ICUN, 2011). Ensuring the survival of lemurs is not only important because they are endemic to Madagascar, but also because they benefit plants and other animals. Many species of lemur are very important seed dispersers for forest trees and pollinators for many of the plants that are also endemic to Madagascar. They are also an important source of food for other animals. The National Association for the Management of Protected Areas in Madagascar (ANGAP) was founded in 1990 to manage Madagascars protected areas system. ANGAPs mission is to safeguard Madagascars ecosystem, research the potential of Madagascars biodiversity, develop environmental education programs for local people, promote potential commercial applications of Madagascars biodiversity, for example ecotourism, and to support sustainable development activities in areas surrounding protected zones. One of ANGAPs goals is to enable local communities to directly benefit from the conservation of Madagascar. Half of the entrance fees to the conservation parks go directly to local communities and visitors can not enter a park without hiring a local guide. ANGAP also works closely with many other organisations and scientists to asses the impact of visitors to the parks and reserves and study the biodiversity of Madagascar. The ANGAP manages the protected areas network in Madagascar (Butler, 200 9). The network includes three types of protected area. Strict nature reserves, national parks, and wildlife reserves. In 2003, at the ICUNs world parks congress, Marc Ravalomanana, the Malagasy president, announced a bold plan to expand the amount of area under protection from approximately 1.7 million hectares to over 6 million hectares. In 2005 the first 10,000 km2 of the new protected areas system of Madagascar was granted protection status and in 2006 1 million hectares was added, both contributing to the overall goal of 10% of Madagascar being protected. This plan also involved broadening the definition of protected areas in Madagascar and legislation has since been passed to allow four new categories of protected area, natural parks, natural monuments, protected landscapes, and national resource reserves (Butler, 2009). Madagascar currently has 19 terrestrial national parks, 2 marine national parks, 5 complete natural reserves, and 21 special reserves. Reference List Baines, E (1997) University of Edinburgh Natural History Museum. Retrieved from http://www.nhc.ed.ac.uk/index.php?page=493.504.513. Accessed 28/4/2011 Burnie, D (2001). Animal. London: Dorling Kindersley Butler, R. (2009) Wild Madagascar. Retrieved from http://www.wildmadagascar.org/history/. Accessed 29/4/2011 Carwardine, M (2009). Last Chance to See. London: Harper Collins Green, G Sussman, R (1990). Science, New Series, Vol. 248, No. 4952, Pages 212 215 Hooper, R (2005). New Scientist Madagascar Reveals Two New Species of Lemur. Retrieved from http://www.newscientist.com/article/dn7818. Accessed 14/4/2011 ICUN, 2011. ICUN Red List of Threatened Species. Version 2010.4. Retrieved from http://www.iucnredlist.org/apps/redlist/search. Accessed 24/4/2011 Kimball, S et al (2009). USGA Minerals Yearbook, Area Reports: International 2006, Africa and the Middle East. Washington DC, USA: United Staes Government Printing Office Kottak, C (1980). Past in the Present: History, Ecology and Cultural Variation in Highland Madagascar. Chicago, USA: University of Michigan Press Kremen, C (2010). Traditions That Threaten. Retrieved from http://www.pbs.org/edens/madagascar/paradise.htm. Accessed on 1/5/2011 Oldfield, S (2002). Rainforest. London: New Holland Publishers (UK) Sauther, M (2006). Lemurs: Ecology and Adaptation. New York, USA: Springer Science and Business Media

Public Education in the Philippines Essay

Literacy rate in the Philippines has improved a lot over the last few years- from 72 percent in 1960 to 94 percent in 1990. This is attributed to the increase in both the number of schools built and the level of enrollment in these schools. The number of schools grew rapidly in all three levels – elementary, secondary, and tertiary. From the mid-1960s up to the early 1990, there was an increase of 58 percent in the elementary schools and 362 percent in the tertiary schools. For the same period, enrollment in all three levels also rose by 120 percent. More than 90 percent of the elementary schools and 60 percent of the secondary schools are publicly owned. However, only 28 percent of the tertiary schools are publicly owned. A big percentage of tertiary-level students enroll in and finish commerce and business management courses. Table 1 shows the distribution of courses taken, based on School Year 1990-1991. Note that the difference between the number of enrollees in the commerce and business courses and in the engineering and technology courses may be small – 29. 2 percent for commerce and business and 20. 3 percent for engineering and technology. However, the gap widens in terms of the number of graduates for the said courses. TABLE 1: TERTIARY ENROLLMENT AND GRADUATION BY FIELD OF STUDY. SY 1990-1991 FIELD OF STUDY ENROLLMENT GRADUATION No. % No. % Arts and Sciences 196,711 14. 6 29,961 13. 6 Teacher Training & Education 242,828 18. 0 34,279 15. 5 Engineering & Technology 273,408 20. 3 32,402 14. 7 Medical and Health – related Programs 176,252 13. 1 34,868 15. 8 Commerce/Business Management 392,958 29. 2 79,827 36. 1 Agriculture, Forestry, Fishery, and Veterinary Medicine 43,458 3. 2 7,390 3. 3 Law 20,405 1. 5 2,111 1. 0 Religion / Theology 1,695 0. 1 209 0. 1 TOTAL 1,347,715 100. 0 221,047 100. 0 On gender distribution, female students have very high representation in all three levels. At the elementary level, male and female students are almost equally represented. But female enrollment exceeds that of the male at the secondary and tertiary levels . Also, boys have higher rates of failures, dropouts, and repetition in both elementary and secondary levels. Aside from the numbers presented above, which are impressive, there is also a need to look closely and resolve the following important issues: 1) quality of education 2) affordability of education 3) goverment budget for education; and 4) education mismatch. Quality – There was a decline in the quality of the Philippine education, especially at the elementary and secondary levels. For example, the results of standard tests conducted among elementary and high school students, as well as in the National College of Entrance Examination for college students, were way below the target mean score. Affordability – There is also a big disparity in educational achievements across social groups. For example, the socioeconomically disadvantaged students have higher dropout rates, especially in the elementary level. And most of the freshmen students at the tertiary level come from relatively well-off families. Budget – The Philippine Constitution has mandated the goverment to allocate the highest proportion of its budget to education. However, the Philippines still has one of the lowest budget allocations to education among the ASEAN countries. Mismatch – There is a large proportion of â€Å"mismatch† between training and actual jobs. This is the major problem at the tertiary level and it is also the cause of the existence of a large group of educated unemployed or underemployed. The following are some of the reforms proposed: Upgrade the teachers’ salary scale. Teachers have been underpaid; thus there is very little incentive for most of them to take up advanced trainings. Amend the current system of budgeting for education across regions, which is based on participation rates and units costs. This clearly favors the more developed regions. There is a need to provide more allocation to lagging regions to narrow the disparity across regions. Stop the current practice of subsidizing state universities and colleges to enhance access. This may not be the best way to promote equity. An expanded scholarship program, giving more focus and priority to the poor, maybe more equitable. Get all the leaders in business and industry to become actively involved in higher education; this is aimed at addressing the mismatch problem. In addition, carry out a selective admission policy, i. e. , installing mechanisms to reduce enrollment in oversubscribed courses and promoting enrollment in undersubscribed ones. Develop a rationalized apprenticeship program with heavy inputs from the private sector. Furthermore, transfer the control of technical training to industry groups which are more attuned to the needs of business and industry.

The Change of Video From Analog to the Digital

DVD is an exciting new technology because of the following benefits: up to nine hours of studio-quality video and multiple channel surround sound simultaneous multiple language support and interactivity other digital video delivery systems, including direct broadcast satellite, wireless cable and digital cable Digital video changes all aspects of video production. Up to this point video has been recorded and transmitted as analog electrical system. Analog video transmitters and receivers can be built inexpensively but are very expensive to transmit and store. Also, today ¡s strong digital computers cannot process analog signals, so analog information cannot be easily searched, sorted or edited. The change of video from the analog to the digital domain changes everything. Digital video can be stored and distributed more inexpensively than analog, and digital video can be stored on randomly accessible media such as a magnetic disk drive (hard discs), and optical disc media (CDs). When stored on randomly accessible media, video can be used in other applications such as games, education, training, and other applications. Even movies can become interactive, allowing viewers to select their point of view, a plot path and the ending. Digital video also significantly increases transmission efficiency so that communications networks, everything from television systems to telecommunication satellites, are able to carry from six to ten times more channels of video programming than was possible before, thereby offering more consumer choice. The ability to transmit video over the public phone network will also allow video conferencing, accelerating the work at home movement that is changing the way people are employed. DVDs can hold 4.7 to 17 billion bytes of digital data on a 120-mm (4.75 inch) disc. This can mean up to nine hours of studio quality video and multi-channel surround-sound audio, highly interactive multimedia computer programs, 30 hours of CD-quality audio, or anything else that can be represented as digital data. A DVD looks like a CD. It is a silvery platter, 4.75 inches in diameter with a hole in the center. Data is recorded on the disc in a spiral trail of tiny pits, and the discs are read using a laser beam. DVDs hold more information because the pits are smaller and the spiral is tighter and can record data in as many as four layers, two on each side of the disc. Lasers that have a shorter wavelength beam of light are more accurate aiming and focusing mechanisms. These are used to read the DVDs. In fact, the focusing mechanism is the technology that allows data to be recorded in two layers. To read the second layer, the reader focuses the laser deeper into the disc, where the second layer of data is recorded. Not only are two-layer discs possible, but double sided as well. This ability of four layers gives DVD its 17 gigabyte capacity. Since a 135-minute movie fits on a single DVD layer however, single-layer DVDs will be the most common. Philips was founded in 1891 by Gerald Philips in Eindhoven, the Netherlands as a manufacturer of incandescent lamps and other electronics. From its small beginning, Philips has emerged as one of today ¡s global leaders in electronics. As a thirty-nine billion-dollar company, Philips successfully competes in a wide range of markets such as consumer products, lighting, semiconductors, professional products and systems. Philips currently has a workforce of more than 250,000. The company has 243 production facilities scattered throughout twenty-five countries. Philips sells and services its products in 150 countries and their stock is traded in 16 stock exchanges in nine countries. The company presently has seven different product divisions and one hundred businesses in value based competitive analysis. Philips ranked first worldwide in lighting, color picture tubes, shavers, and dictation equipment. They are second in laser optics and monitors. The company is third among consumer electronics and medical imagining equipment. To maintain leadership in global markets through innovation, Philips reinvests 5.3% of its sales into research and development and has research laboratories in six countries. Through its commitment in research, Philips has come up with at least ten thousand inventions in field of optical recording, digital audio coding, digital video coding and mobile telephony. The company is a holder of 60,000 patents and design rights and almost 30,000 trademarks registrations. Philips possesses key patents in optical recording (CD-Audio, CD-ROM, CD-R, CD-RW, DVD-Video, DVD-ROM), digital audio coding (MPEG-2 audio compression) and mobile telephony (GMS and CDMA). Philips Magnavox was formed in 1974 when the two companies decided to join forces. Along with the Philips brand, there are several other name brands including, but not limited to, Marantz and Norelco. Philips Magnavox released the DVD400AT video player on April 30, 1997 at a retail price of $549. The new device allows for richer sound and video quality that was found  ¡V until then  ¡V only in movie theaters. In 1960 Akio Morita began Sony ¡s first major overseas venture in the United States in New York City with a capital investment of $500,000. They employed six people initially but would grow into one of the largest components of Sony ¡s worldwide operations. Currently, Sony Electronics, Inc. in North America has one-third of Sony ¡s corporate assets worldwide. They are the largest geographical operation of the corporation. They rake in some $9.6 billion sales on a given year and roughly $1.3 billion in exports. The North American plants employ a total of 24,000 people whose job range from manufacturing to customer service to research and development and marketing and sales. During the 1995 Consumer Electronics show, Sony debuted the first prototype DVD player in the United States. On January 8, 1997, Sony Electronics released their first DVD player at a retail price of about $1,000  ¡V a big difference from today ¡s $400 price tag. John Briesch, President of Sony Electronics A/V Group said,  ¡Ã‚ §We have designed our first DVD player, model DVP-S7000, as a high-end product to deliver not only reference-standard DVD video quality, but state-of-the-art CD sound as well. ¡ Panasonic introduced its first products into the U.S. market in 1961. The founder of its parent company  ¡V Matsushita Electric Industrial Company Co.  ¡V Konosuke Matsushita believed that  ¡Ã‚ §Matsushita makes people before it makes products. ¡ He basically believed that valuing employees first would lead to better quality products. It seems that his successors have carried out his vision because Panasonic continues to sell high quality products in the U.S. and abroad. The company currently employs 19,500 people in factories, sales companies, service centers and research facilities in the U.S., Puerto Rico, Mexico and Canada. Divx is the latest technology to revolutionize DVD players. Divx movies are synonymous with movie rentals in the sense they can be viewed for a set period of time (48 hours from the time of the initial playing). Unlike traditional movie rentals, Divx doesn ¡t have any late fees tacked on to the price. In addition, there are no late night trips to the video store to return movies. A Divx movie costs an average of $4.50, which includes an initial viewing time of forty-eight hours from the time of pressing the play button. After that time is up, an additional forty-eight hours can be purchased for $3.25. It is done through the internal modem to an 800 number and information is uploaded back to the CD on a very small chip. This can be repeated as often as the user likes. Also, a person may decide a movie on Divx is worth watching over and over. During this case, a Dixv can be converted into a movie that has unlimited playing time and is like a regular DVD movie. Technological and social/cultural shifts: With the advent of the DVD, more and more data can be stored on a single disc. In addition, the DVD is far more interactive than the traditional VHS tape. For example, on a DVD two or more languages can be stored. That couldn ¡t happen on a VHS tape because of limiting recording time. Furthermore, people don ¡t have to leave their house to watch a DVD. With the emergency of e-commerce on the Internet an individual can order a movie off of the web and have it delivered to the front door within days. This takes away from the social interaction with people that occurs in a store setting. People are able to use the DVD to learn another language. Take for instance a DVD that has superstar French-Canadian Celine Dion singing her various songs. One option in the program is to change the lyrics that are displayed on the screen to French. As Celine Dion sings in English, the words matching up to what she is singing are displayed on the bottom of the screen. This is an excellent way to learn another language. There are many different ways that are now being developed to copyright protect the movies, programs and videos etc. that are on the new DVDs. The three most common ways that were found to be used already to protect DVDs are: Regional coding, Content scrambling system and the Copy generation management system (CGMS). When you buy your first DVD drive and install it, you now have to enter the zone in which you live. The world is divided into six sections, with Canada and the United States as zone 1. The DVD disc also has its own codes that allow it to be played in certain parts of the world and not in others. This forces people that buy DVD discs in Zone 1 to also have to utilize discs that are coded for Zone 1. This prohibits movies that are produced in other Zones from being used where they should not be. The code can however be changed on your DVD drive. The code can only be changed a couple of times, thus prohibiting people from changing the code constantly and abusing the protection. It allows the user to change the code a couple of times so that if they move to a different zone they will not be penalized. The second type of encryption is called the Content Scrambling System. (CSS) This is a key-based data encryption that  ¡Ã‚ §sets up a protocol whereby your drive and the disc exchange keys. ¡ The keys are legal, registered mechanism of the Content Scrambling System. Any hardware that is sold or brought into different zones must be registered. When the keys are found to be authentic, then the DVDs can be decrypted. The third type of protection comes from the VCR technology that we are all very familiar with. The Copy Generation Management System is the technology that makes it impossible to copy two videos between two VCRs with a good resolution and brightness. This system works by embedding a signal in a part of the video that is not usually seen by the user. This signal causes the brightness of the video to vary and for the picture to be unreliable. This same technology has been implemented for use with DVDs. Although it seems possible that some people may be able to overcome these copyright traps, the user has to have at least an 8, 10 or 17 GB hard drive.

The Act Of Discrimination Is A Part Of The United States...

The act of discrimination is a factor that is a part of the United States history. The era of slavery divided America into two nations. Therefore, one group always had to be seen as superior to an inferior group. For instance, Blacks were inferior to the Whites. Using the theory of symbolic racism that focuses on the prejudices against blacks. Many Americans and members of the government feels that discrimination towards blacks is not that noticeable. However, if that was the case police brutality will be low when it comes to blacks. The current issue pertain to race is the emergence of the Black Lives Matter movement, which was created following the death of Trayvon Martin, a young black man, that was racially profiled and stereotyped whom was shot and killed because he was seen as a â€Å"threat†. The emergence of more African Americans being killed over senseless crimes have caused more people to join the movement and promote change and try to rebuild the black community th at has been destroy by discrimination and stereotypes. It’s more than the brutality of Africans Americans it’s about the future as a race in relation to education, the prison system, wage gap, opportunities, health, poverty, sexual identity, and government. When Nixon declared a War on Drugs it was a seen as a war against African Americans. As individuals we can not neglect that the political arena is contributing to the racism. Nixon administration can still be seen as symbolic racism that is occurring whenShow MoreRelatedRacial Discrimination : The Act Of Making Or Perceiving A Difference1705 Words   |  7 PagesMerriam-Webster defines discrimination as, â€Å"the act of making or perceiving a difference† (Discrimination, 2017.) 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One of the biggest issues that these older individuals face is age discrimination within the workplace. The Age Discrimination in Employment Act (ADEA) of 1967 forbids employment discr imination on the basis of age. Through a detailed explanation and history of the law, this paper will examine how ADEA affects the professionals in the workplace, human resources, managers, and employers in the workplace. It willRead MoreHate Crime Essay816 Words   |  4 PagesIntroduction The term hate crime became part of the American lexicon in 1985 when it was coined by United States Representatives John Conyers and Mario Biaggi. Although the term hate crime and societal interest in it are relatively recent developments, hate crime has deep historical roots. Throughout U.S. history, a significant proportion of all murders, assaults, and acts of vandalism and desecration have been fueled by hatred. As Native Americans have been described as the first hate crime victimsRead MoreLyndon Baines Johnson s History870 Words   |  4 PagesLyndon Baines Johnson makes one of the most important historical figures of the United States because of the enormous changes brought in the states federation. During Lyndon Baines Johnson’s reign, there was a lot of evolution in the federal state laws (Andrews and Sarah Gaby 202). After the assassination of the JKF, Lyndon Baines Johnson moved quickly to becoming the president of United States. At the time he fostered the deve lopment of some of the largest reforms in the federal laws in the URead MorePolice Influence on Society Essay924 Words   |  4 PagesCJA/344 Historically, this nation of the United States has proven many times over its dominance over those who are different to those in power. The United States has proven time and again that it can and will discriminate against others it considers less than equal. This is proven and demonstrated to all U. S citizens and those who are not, in our history books throughout school. Every year affording student’s new information of how the United States demonstrates its power over those that are differentRead MoreA Silk Road : Chinese Immigration Essay1465 Words   |  6 Pages2010 United States Census, there are more than 3.7 million Chinese in the United States, about 1.23% of the total population. All of these 3.7 million Chinese Americans, are made of different historical period of the Chinese immigrants and their descendants. The history of Chinese immigration, is as old as the history of the United State of America, more than 200 years. Various periods of Chinese immigrants exper ienced different stories, and they also made different contributions to the United StatesRead MoreAnalysis Of The Article School s Discipline For Girls Essay1541 Words   |  7 PagesSocietal Racism in the United States In her article, â€Å"School’s Discipline for Girls Differs by Race and Hue (2014),† Tanzina Vega emphasises and addresses the issue of societal racism by sharing with the reader the personal experiences of young African American girls within the school disciplinary system in the United States. Through examining these girls experiences, it becomes apparent that societal racism, or racism that is overwhelmingly and systemically prevalent and entrenched in all aspects