In computer networking, a network host, Internet host, host, or Internet node is a computer connected to the Internet - or more generically - to any type of data network. A network host can host information resources as well as application software for providing network services.
Every Internet host has one or more IP addresses uniquely assigned to the host. The addresses are assigned either manually by the computer administrator, or automatically at start-up by means of the Dynamic Host Configuration Protocol (DHCP).
Every host is a physical network node (i.e. a network device), but not every physical network node is a host. Network devices such as modems and network switches are usually not assigned host addresses, and are not considered hosts. Devices such as network printers and hardware routers are assigned IP addresses, but since they are not general-purpose computers, they are sometimes not considered as hosts.
Wednesday, April 14, 2010
Radar tracker
A classical rotating air surveillance radar system detects target echoes against a background of noise. It reports these detections (known as "plots") in polar coordinates representing the range and bearing of the target. In addition, noise in the radar receiver will occasionally exceed the detection threshold of the radar's Constant false alarm rate detector and be incorrectly reported as targets (known as false alarms). The role of the radar tracker is to monitor consecutive updates from the radar system (which typically occur once every few seconds, as the antenna rotates) and to determine those sequences of plots belonging to the same target, whilst rejecting any plots believed to be false alarms. In addition, the radar tracker is able to use the sequence of plots to estimate the current speed and heading of the target. When several targets are present, the radar tracker aims to provide one track for each target, with the track history often being used to indicate where the target has come from.
When multiple radar systems are connected to a single reporting post, a multiradar tracker is often used to monitor the updates from all of the radars and form tracks from the combination of detections. In this configuration, the tracks are often more accurate than those formed from single radars, as a greater number of detections can be used to estimate the tracks. In addition to associating plots, rejecting false alarms and estimating heading and speed, the radar tracker also acts as a filter, in which errors in the individual radar measurements are smoothed out. In essence, the radar tracker fits a smooth curve to the reported plots and, if done correctly, can increase the overall accuracy of the radar system. A multisensor tracker extends the concept of the multiradar tracker to allow the combination of reports from different types of sensor - typically radars, secondary surveillance radars, identification friend or foe (IFF) systems and electronic support measures (ESM) data. A radar track will typically contain the following information
* Position (in two or three dimensions)
* Heading
* Speed
* Unique track number
In addition, and depending on the application or tracker sophistication, the track will also include:
* Civilian SSR Modes A, C, S information
* Military IFF Modes 1, 2, 3, 4 and 5 information
* Call sign information
* ADS-B information
* Track reliability or uncertainty information
When multiple radar systems are connected to a single reporting post, a multiradar tracker is often used to monitor the updates from all of the radars and form tracks from the combination of detections. In this configuration, the tracks are often more accurate than those formed from single radars, as a greater number of detections can be used to estimate the tracks. In addition to associating plots, rejecting false alarms and estimating heading and speed, the radar tracker also acts as a filter, in which errors in the individual radar measurements are smoothed out. In essence, the radar tracker fits a smooth curve to the reported plots and, if done correctly, can increase the overall accuracy of the radar system. A multisensor tracker extends the concept of the multiradar tracker to allow the combination of reports from different types of sensor - typically radars, secondary surveillance radars, identification friend or foe (IFF) systems and electronic support measures (ESM) data. A radar track will typically contain the following information
* Position (in two or three dimensions)
* Heading
* Speed
* Unique track number
In addition, and depending on the application or tracker sophistication, the track will also include:
* Civilian SSR Modes A, C, S information
* Military IFF Modes 1, 2, 3, 4 and 5 information
* Call sign information
* ADS-B information
* Track reliability or uncertainty information
Crytography
Cryptography (or cryptology; from Greek κρυπτός, kryptos, "hidden, secret"; and γράφω, gráphō, "I write", or -λογία, -logia, respectively) is the practice and study of hiding information. Modern cryptography intersects the disciplines of mathematics, computer science, and engineering. Applications of cryptography include ATM cards, computer passwords, and electronic commerce.
Until modern times cryptography referred almost exclusively to encryption, which is the process of converting ordinary information (plaintext) into unintelligible gibberish (i.e., ciphertext). Decryption is the reverse, in other words, moving from the unintelligible ciphertext back to plaintext. A cipher (or cypher) is a pair of algorithms that create the encryption and the reversing decryption. The detailed operation of a cipher is controlled both by the algorithm and in each instance by a key. This is a secret parameter (ideally known only to the communicants) for a specific message exchange context. Keys are important, as ciphers without variable keys can be trivially broken with only the knowledge of the cipher used and are therefore less than useful for most purposes. Historically, ciphers were often used directly for encryption or decryption without additional procedures such as authentication or integrity checks.
In colloquial use, the term "code" is often used to mean any method of encryption or concealment of meaning. However, in cryptography, code has a more specific meaning. It means the replacement of a unit of plaintext (i.e., a meaningful word or phrase) with a code word (for example, apple pie replaces attack at dawn). Codes are no longer used in serious cryptography—except incidentally for such things as unit designations (e.g., Bronco Flight or Operation Overlord)—since properly chosen ciphers are both more practical and more secure than even the best codes and also are better adapted to computers.
Some use the terms cryptography and cryptology interchangeably in English, while others (including US military practice generally) use cryptography to refer specifically to the use and practice of cryptographic techniques and cryptology to refer to the combined study of cryptography and cryptanalysis.English is more flexible than several other languages in which cryptology (done by cryptologists) is always used in the second sense above. In the English Wikipedia the general term used for the entire field is cryptography (done by cryptographers).
The study of characteristics of languages which have some application in cryptography (or cryptology), i.e. frequency data, letter combinations, universal patterns, etc., is called cryptolinguistics.
Until modern times cryptography referred almost exclusively to encryption, which is the process of converting ordinary information (plaintext) into unintelligible gibberish (i.e., ciphertext). Decryption is the reverse, in other words, moving from the unintelligible ciphertext back to plaintext. A cipher (or cypher) is a pair of algorithms that create the encryption and the reversing decryption. The detailed operation of a cipher is controlled both by the algorithm and in each instance by a key. This is a secret parameter (ideally known only to the communicants) for a specific message exchange context. Keys are important, as ciphers without variable keys can be trivially broken with only the knowledge of the cipher used and are therefore less than useful for most purposes. Historically, ciphers were often used directly for encryption or decryption without additional procedures such as authentication or integrity checks.
In colloquial use, the term "code" is often used to mean any method of encryption or concealment of meaning. However, in cryptography, code has a more specific meaning. It means the replacement of a unit of plaintext (i.e., a meaningful word or phrase) with a code word (for example, apple pie replaces attack at dawn). Codes are no longer used in serious cryptography—except incidentally for such things as unit designations (e.g., Bronco Flight or Operation Overlord)—since properly chosen ciphers are both more practical and more secure than even the best codes and also are better adapted to computers.
Some use the terms cryptography and cryptology interchangeably in English, while others (including US military practice generally) use cryptography to refer specifically to the use and practice of cryptographic techniques and cryptology to refer to the combined study of cryptography and cryptanalysis.English is more flexible than several other languages in which cryptology (done by cryptologists) is always used in the second sense above. In the English Wikipedia the general term used for the entire field is cryptography (done by cryptographers).
The study of characteristics of languages which have some application in cryptography (or cryptology), i.e. frequency data, letter combinations, universal patterns, etc., is called cryptolinguistics.
Thursday, April 8, 2010
Tv channel
A television channel is a physical or virtual channel over which a television station or television network is distributed. For example, in North America, "channel 2" refers to the broadcast or cable band of 54 to 60 MHz, with carrier frequencies of 55.25 MHz for NTSC analog video (VSB) and 59.75 MHz for analog audio (FM), or 55.31 MHz for digital ATSC (8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider.
Depending on the multinational bandplan for a given region, analog television channels are typically 6, 7, or 8 MHz in bandwidth, and therefore television channel frequencies vary as well. Channel numbering is also different. Digital television channels are the same for legacy reasons, however through multiplexing, each physical radio frequency (RF) channel can carry several digital subchannels. On satellites, each transponder normally carries one channel, however small, independent channels can be used on each transponder, with some loss of bandwidth due to the need for guard bands between unrelated transmissions. ISDB, used in Japan and Brazil, has a similar segmented mode.
Channel separation on over-the-air channels is accomplished by skipping at least one channel between two analog stations' frequency allocations. (It should be noted that there are gaps between certain channels, where numbers are sequential, but frequencies are not contiguous, such as the skip from VHF low to high, and the jump to UHF.) On cable TV, it is possible to use adjacent channels only because they are all at the same power, something which could only be done over the air if the two stations were transmitted at the same power and height from the same location. For digital TV, selectivity is inherently better, therefore channels adjacent (either to analog or digital stations) can be used even in the same area.
Depending on the multinational bandplan for a given region, analog television channels are typically 6, 7, or 8 MHz in bandwidth, and therefore television channel frequencies vary as well. Channel numbering is also different. Digital television channels are the same for legacy reasons, however through multiplexing, each physical radio frequency (RF) channel can carry several digital subchannels. On satellites, each transponder normally carries one channel, however small, independent channels can be used on each transponder, with some loss of bandwidth due to the need for guard bands between unrelated transmissions. ISDB, used in Japan and Brazil, has a similar segmented mode.
Channel separation on over-the-air channels is accomplished by skipping at least one channel between two analog stations' frequency allocations. (It should be noted that there are gaps between certain channels, where numbers are sequential, but frequencies are not contiguous, such as the skip from VHF low to high, and the jump to UHF.) On cable TV, it is possible to use adjacent channels only because they are all at the same power, something which could only be done over the air if the two stations were transmitted at the same power and height from the same location. For digital TV, selectivity is inherently better, therefore channels adjacent (either to analog or digital stations) can be used even in the same area.
Blogs
A blog (a contraction of the term "web log")[1] is a type of website, usually maintained by an individual with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse-chronological order. "Blog" can also be used as a verb, meaning to maintain or add content to a blog.
Many blogs provide commentary or news on a particular subject; others function as more personal online diaries. A typical blog combines text, images, and links to other blogs, Web pages, and other media related to its topic. The ability of readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual, although some focus on art (Art blog), photographs (photoblog), videos (Video blogging), music (MP3 blog), and audio (podcasting). Microblogging is another type of blogging, featuring very short posts.
As of December 2007, blog search engine Technorati was tracking more than 112,000,000 blogs
Many blogs provide commentary or news on a particular subject; others function as more personal online diaries. A typical blog combines text, images, and links to other blogs, Web pages, and other media related to its topic. The ability of readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual, although some focus on art (Art blog), photographs (photoblog), videos (Video blogging), music (MP3 blog), and audio (podcasting). Microblogging is another type of blogging, featuring very short posts.
As of December 2007, blog search engine Technorati was tracking more than 112,000,000 blogs
clothing
A feature of all modern human societies is the wearing of clothing, a category encompassing a wide variety of materials that cover the body. The primary purpose of clothing is functional, as a protection from the elements. Clothes also enhance safety during hazardous activities such as hiking and cooking, by providing a barrier between the skin and the environment. Further, clothes provide a hygienic barrier, keeping toxins away from the body and limiting the transmission of germs.
Clothing performs important social and cultural functions. A uniform, for example, may identify civil authority figures, such as police and army personnel, or it may identify team, group or political affiliations. In many societies, norms about clothing reflect standards of modesty, religion, gender, and social status. Clothing may also function as a form of adornment and an expression of personal taste or style.
Throughout history, many materials have been used for clothes. Materials have ranged from leather and furs, to weaved and woven materials, to elaborate and exotic natural and synthetic fabrics. Recent scientific research estimates that humans have been wearing clothing for as long as 650,000 years.[1] Others claim that clothing probably did not originate until the Neolithic Age (the "New Stone Age").[citation needed]
Articles carried rather than worn (such as purses), worn on a single part of the body and easily removed (scarves), worn purely for adornment (jewellery), or those which serve a function other than protection (eyeglasses), are normally considered accessories rather than clothing.
Clothing performs important social and cultural functions. A uniform, for example, may identify civil authority figures, such as police and army personnel, or it may identify team, group or political affiliations. In many societies, norms about clothing reflect standards of modesty, religion, gender, and social status. Clothing may also function as a form of adornment and an expression of personal taste or style.
Throughout history, many materials have been used for clothes. Materials have ranged from leather and furs, to weaved and woven materials, to elaborate and exotic natural and synthetic fabrics. Recent scientific research estimates that humans have been wearing clothing for as long as 650,000 years.[1] Others claim that clothing probably did not originate until the Neolithic Age (the "New Stone Age").[citation needed]
Articles carried rather than worn (such as purses), worn on a single part of the body and easily removed (scarves), worn purely for adornment (jewellery), or those which serve a function other than protection (eyeglasses), are normally considered accessories rather than clothing.
Siemens mobile
Siemens cellular telephones were mobile phones produced by Siemens AG.
In 2005 the Taiwanese company BenQ acquired the financially bleeding mobile phone subsidiary from Siemens and gained the exclusive right to use Siemens trademark for 5 years. Before transferring the mobile phone subsidiary to BenQ, Siemens invested 250 million euros and wrote down assets amounting to 100 million euros [1]. Siemens also acquired a 2.5% stake in BenQ for 50 million euros. BenQ subsequently released mobile phones under the BenQ-Siemens brand, from its German unit.
In 2006, this German unit filed for bankruptc
In 2005 the Taiwanese company BenQ acquired the financially bleeding mobile phone subsidiary from Siemens and gained the exclusive right to use Siemens trademark for 5 years. Before transferring the mobile phone subsidiary to BenQ, Siemens invested 250 million euros and wrote down assets amounting to 100 million euros [1]. Siemens also acquired a 2.5% stake in BenQ for 50 million euros. BenQ subsequently released mobile phones under the BenQ-Siemens brand, from its German unit.
In 2006, this German unit filed for bankruptc
Crude
In its strictest sense, petroleum includes only crude oil, but in common usage it includes both crude oil and natural gas. Both crude oil and natural gas are predominantly a mixture of hydrocarbons. Under surface pressure and temperature conditions, the lighter hydrocarbons methane, ethane, propane and butane occur as gases, while the heavier ones from pentane and up are in the form of liquids or solids. However, in the underground oil reservoir the proportion which is gas or liquid varies depending on the subsurface conditions, and on the phase diagram of the petroleum mixture.[2]
An oil well produces predominantly crude oil, with some natural gas dissolved in it. Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered (or burned) as associated gas or solution gas. A gas well produces predominately natural gas. However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state. Under surface conditions these will condense out of the gas and form natural gas condensate, often shortened to condensate. Condensate resembles gasoline in appearance and is similar in composition to some volatile light crude oils.
The proportion of hydrocarbons in the petroleum mixture is highly variable between different oil fields and ranges from as much as 97% by weight in the lighter oils to as little as 50% in the heavier oils and bitumens.
The hydrocarbons in crude oil are mostly alkanes, cycloalkanes and various aromatic hydrocarbons while the other organic compounds contain nitrogen, oxygen and sulfur, and trace amounts of metals such as iron, nickel, copper and vanadium. The exact molecular composition varies widely from formation to formation but the proportion of chemical elements vary over fairly narrow limits as follows:[3]
An oil well produces predominantly crude oil, with some natural gas dissolved in it. Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered (or burned) as associated gas or solution gas. A gas well produces predominately natural gas. However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state. Under surface conditions these will condense out of the gas and form natural gas condensate, often shortened to condensate. Condensate resembles gasoline in appearance and is similar in composition to some volatile light crude oils.
The proportion of hydrocarbons in the petroleum mixture is highly variable between different oil fields and ranges from as much as 97% by weight in the lighter oils to as little as 50% in the heavier oils and bitumens.
The hydrocarbons in crude oil are mostly alkanes, cycloalkanes and various aromatic hydrocarbons while the other organic compounds contain nitrogen, oxygen and sulfur, and trace amounts of metals such as iron, nickel, copper and vanadium. The exact molecular composition varies widely from formation to formation but the proportion of chemical elements vary over fairly narrow limits as follows:[3]
Lamborghini
Automobili Lamborghini S.p.A.,[Notes 1] commonly referred to as Lamborghini (pronounced [lamborˈɡini] ( listen)), is an Italian automaker based in the small township of Sant'Agata Bolognese. The company was founded in 1963 by manufacturing magnate Ferruccio Lamborghini. It has changed ownership numerous times since, most recently becoming a subsidiary of German car manufacturer AUDI AG (itself a subsidiary of the Volkswagen Group) in 1998.[1][2] Lamborghini has achieved widespread recognition for its sleek, exotic designs, and its cars have become symbols of performance and wealth.
Ferruccio Lamborghini entered the automobile manufacturing business with the aim of producing a high-quality grand tourer that could outperform and outclass offerings from local rival Ferrari S.p.A. Lamborghini met with success in 1966 with the release of the mid-engined Miura sports coupé, and in 1968 with the Espada GT, the latter of which sold over 1,200 units during ten years of production. After almost a decade of rapid growth, and the release of classic models like the Countach in 1974, hard times befell the company in the late 1970s, as sales plunged in the wake of the 1973 oil crisis. Bankruptcy crippled the automaker, and after passing through the hands of a number of Swiss entrepreneurs, Lamborghini came under the corporate umbrella of industry giant Chrysler. The American company failed to make the Italian manufacturer profitable, and in 1994, the company was sold to Indonesian interests. Lamborghini would remain on life support throughout the rest of the 1990s, continuously updating the Diablo of 1990 in lieu of a planned expanded range of offerings, including a smaller car that would appeal to American enthusiasts. Reeling from the Asian financial crisis of the previous year, in 1998 Lamborghini's owners sold the troubled automaker to AUDI AG, the luxury car subsidiary of German automotive concern Volkswagen Group. German ownership marked the beginning of a period of stability and increased productivity for Lamborghini, with sales increasing nearly tenfold over the course of the next decade. A new world financial crisis has seen sales decrease once again, from a high of 2,580 units in 2007 to an expected 1,580 units in 2009. Lamborghini CEO Stephen Winkelmann has predicted continued poor sales for supercars through 2011.
Assembly of Lamborghini cars continues to take place at the automaker's ancestral home in Sant'Agata Bolognese, where engine and automobile production lines run side-by-side at the company's single factory. Each year, the facility produces less than 3,000 examples of the four models offered for sale, the V10-powered Gallardo coupé and roadster and the flagship V12-powered Murciélago coupé and roadster. The range is occasionally complemented by limited-edition variants of the four main models, such as the Reventón and a number of Superleggera trim packages.
Ferruccio Lamborghini entered the automobile manufacturing business with the aim of producing a high-quality grand tourer that could outperform and outclass offerings from local rival Ferrari S.p.A. Lamborghini met with success in 1966 with the release of the mid-engined Miura sports coupé, and in 1968 with the Espada GT, the latter of which sold over 1,200 units during ten years of production. After almost a decade of rapid growth, and the release of classic models like the Countach in 1974, hard times befell the company in the late 1970s, as sales plunged in the wake of the 1973 oil crisis. Bankruptcy crippled the automaker, and after passing through the hands of a number of Swiss entrepreneurs, Lamborghini came under the corporate umbrella of industry giant Chrysler. The American company failed to make the Italian manufacturer profitable, and in 1994, the company was sold to Indonesian interests. Lamborghini would remain on life support throughout the rest of the 1990s, continuously updating the Diablo of 1990 in lieu of a planned expanded range of offerings, including a smaller car that would appeal to American enthusiasts. Reeling from the Asian financial crisis of the previous year, in 1998 Lamborghini's owners sold the troubled automaker to AUDI AG, the luxury car subsidiary of German automotive concern Volkswagen Group. German ownership marked the beginning of a period of stability and increased productivity for Lamborghini, with sales increasing nearly tenfold over the course of the next decade. A new world financial crisis has seen sales decrease once again, from a high of 2,580 units in 2007 to an expected 1,580 units in 2009. Lamborghini CEO Stephen Winkelmann has predicted continued poor sales for supercars through 2011.
Assembly of Lamborghini cars continues to take place at the automaker's ancestral home in Sant'Agata Bolognese, where engine and automobile production lines run side-by-side at the company's single factory. Each year, the facility produces less than 3,000 examples of the four models offered for sale, the V10-powered Gallardo coupé and roadster and the flagship V12-powered Murciélago coupé and roadster. The range is occasionally complemented by limited-edition variants of the four main models, such as the Reventón and a number of Superleggera trim packages.
Automobile industry in china
As of November 2009, China is the largest auto market in the world.[1][2][3][4][5] China's automobile industry has been in rapid development since the early 1990s. In 2009, China produced 13.79 million units of automobile, of which 10.38 million units were passenger cars (sedans, sport utility vehicles (SUV), multi-purpose vehicles (MPV) and crossovers), and 3.41 million units were commercial vehicles (buses, trucks, and tractors). Of the automobiles produced, 44.3% are local brands (BYD, Chery, Geely, Hafei, Jianghuai (JAC), Chang'an (Chana), Great Wall, Roewe etc.), the rest being produced by joint ventures with foreign car makers such as Volkswagen, General Motors, Hyundai, Nissan, Honda, Toyota etc. Most of the cars manufactured in China are sold within China, with only 369,600 cars being exported in 2009.
China's annual automobile production capacity first exceeded one million in 1992. By 2000, China was producing over two million vehicles. After China's entry into the World Trade Organization (WTO) in 2001, the development of the automobile market further accelerated. Between 2002 and 2007, China's national automobile market grew by an average 21 percent, or one million vehicles year-on-year. In 2006, China’s vehicle production capacity successively exceeded six, then seven million, and in 2007, China produced over eight million automobiles.[6] In 2008, 9.345 million motor vehicles were manufactured in China, surpassing the United States as the second largest automobile maker, after Japan.
China's annual automobile production capacity first exceeded one million in 1992. By 2000, China was producing over two million vehicles. After China's entry into the World Trade Organization (WTO) in 2001, the development of the automobile market further accelerated. Between 2002 and 2007, China's national automobile market grew by an average 21 percent, or one million vehicles year-on-year. In 2006, China’s vehicle production capacity successively exceeded six, then seven million, and in 2007, China produced over eight million automobiles.[6] In 2008, 9.345 million motor vehicles were manufactured in China, surpassing the United States as the second largest automobile maker, after Japan.
Foreign exchange market
The foreign exchange market (forex, FX, or currency market) is a worldwide decentralized over-the-counter financial market for the trading of currencies. Financial centers around the world function as anchors of trading between a wide range of different types of buyers and sellers around the clock, with the exception of weekends.
The purpose of the foreign exchange market 'Forex' is to assist international trade and investment. The foreign exchange market allows businesses to convert one currency to another foreign currency. For example, it permits a U.S. business to import European goods and pay Euros, even though the business's income is in U.S. dollars. Some experts, however, believe that the unchecked speculative movement of currencies by large financial institutions such as hedge funds impedes the markets from correcting global current account imbalances. This carry trade may also lead to loss of competitiveness in some countries.[1]
In a typical foreign exchange transaction a party purchases a quantity of one currency by paying a quantity of another currency. The modern foreign exchange market started forming during the 1970s when countries gradually switched to floating exchange rates from the previous exchange rate regime, which remained fixed as per the Bretton Woods system.
The purpose of the foreign exchange market 'Forex' is to assist international trade and investment. The foreign exchange market allows businesses to convert one currency to another foreign currency. For example, it permits a U.S. business to import European goods and pay Euros, even though the business's income is in U.S. dollars. Some experts, however, believe that the unchecked speculative movement of currencies by large financial institutions such as hedge funds impedes the markets from correcting global current account imbalances. This carry trade may also lead to loss of competitiveness in some countries.[1]
In a typical foreign exchange transaction a party purchases a quantity of one currency by paying a quantity of another currency. The modern foreign exchange market started forming during the 1970s when countries gradually switched to floating exchange rates from the previous exchange rate regime, which remained fixed as per the Bretton Woods system.
Monday, April 5, 2010
Get Rich-quick
A get-rich-quick scheme is a plan to acquire high rates of return for a small investment. Most such schemes promise that participants can obtain this high rate of return with little risk. What is a get rich quick scheme? It is trying to get big profits for nearly nothing, investing in what seems to be a promising venture that is accomplished with little effort, a promise or belief of big and quick profits that has a lot of business uncertainty.
Most get-rich-quick schemes also promise that little skill, effort, or time is required. They often assert that wealth can be obtained by working at home. Legal and quasi-legal get-rich-quick schemes are frequently advertised on infomercials and in magazines and newspapers. Illegal schemes or scams are often advertised through spam or cold calling. Some forms of advertising for these schemes market books or compact discs about getting rich quick rather than asking participants to invest directly in a concrete scheme.
It is clearly possible to get rich quickly if one is prepared to accept very high levels of risk — this is the premise of the gambling industry. However, gambling offers the near-certainty of completely losing the original stake over the long term, even if it offers regular wins along the way. Economic theory states that risk-free opportunities for profit are not stable, because they will quickly be exploited by arbitrageurs.
Most get-rich-quick schemes also promise that little skill, effort, or time is required. They often assert that wealth can be obtained by working at home. Legal and quasi-legal get-rich-quick schemes are frequently advertised on infomercials and in magazines and newspapers. Illegal schemes or scams are often advertised through spam or cold calling. Some forms of advertising for these schemes market books or compact discs about getting rich quick rather than asking participants to invest directly in a concrete scheme.
It is clearly possible to get rich quickly if one is prepared to accept very high levels of risk — this is the premise of the gambling industry. However, gambling offers the near-certainty of completely losing the original stake over the long term, even if it offers regular wins along the way. Economic theory states that risk-free opportunities for profit are not stable, because they will quickly be exploited by arbitrageurs.
Sunday, April 4, 2010
Currency
In economics, the term currency can refer either to a particular currency, for example the British Pound, or to the coins and banknotes of a particular currency, which comprise the physical aspects of a nation's money supply. The other part of a nation's money supply consists of money deposited in banks (sometimes called deposit money), ownership of which can be transferred by means of cheques or other forms of money transfer such as credit and debit cards. Deposit money and currency are money in the sense that both are acceptable as a means of exchange, but money need not necessarily be currency.[1]
Historically, money in the form of currency has predominated. Usually (gold or silver) coins of intrinsic value commensurate with the monetary unit (commodity money), have been the norm. By contrast, modern currency, as fiat money, is intrinsically worthless. The prevalence of one type of currency over another in commodity money systems has arisen, usually when a government designates through decrees, that only particular monetary units shall be accepted in payment for taxes.Numerology
Numerology is any of many systems, traditions or beliefs in a mystical or esoteric relationship between numbers and physical objects or living things.
Numerology and numerological divination were popular among early mathematicians, such as Pythagoras, but are no longer considered part of mathematics and are regarded as pseudomathematics by modern scientists.[1][2] This is similar to the historical relationships between astrology and astronomy, and between alchemy and chemistry.
Today, numerology is often associated with the occult, alongside astrology and similar divinatory arts.[citation needed]
The term can also be used for those who, in the view of some observers, place excess faith in numerical patterns, even if those people don't practice traditional numerology. For example, in his 1997 book Numerology: Or What Pythagoras Wrought, mathematician Underwood Dudley uses the term to discuss practitioners of the Elliott wave principle of stock market analysis.
Adsense
AdSense is an ad serving application run by Google Inc. Website owners can enroll in this program to enable text, image, and video advertisements on their websites. These advertisements are administered by Google and generate revenue on either a per-click or per-impression basis. Google beta tested a cost-per-action service, but discontinued it in October 2008 in favor of a DoubleClick offering (also owned by Google).
Culture of india
The culture of India has been shaped not only by its long history, unique geography and diverse demography, but also by its ancient heritages, which were formed during the Indus Valley Civilization and evolved further during the Vedic age, rise and decline of Buddhism, the Golden age, invasions from Central Asia, European colonization and the rise of Indian nationalism.
India's diversity is visible in its languages, religions, dance, music, architecture and customs which differ from place to place within the country, but nevertheless possess a commonality. The culture of India is an amalgamation of diverse sub-cultures spread all over the country and traditions that are several millennia old.
Heavy metal music
Heavy metal (often referred to simply as metal) is a genre of rock music[1] that developed in the late 1960s and early 1970s, largely in the United Kingdom and the United States.[2] With roots in blues-rock and psychedelic rock, the bands that created heavy metal developed a thick, massive sound, characterized by highly amplified distortion, extended guitar solos, emphatic beats, and overall loudness. Heavy metal lyrics and performance styles are generally associated with masculinity and machismo.
Sweden
Sweden (pronounced en-us-Sweden.ogg /ˈswiːdən/ (help·info) SWEE-dən, Swedish: Sverige), officially the Kingdom of Sweden (Swedish: About this sound Konungariket Sverige (help·info)), is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden has land borders with Norway to the west and Finland to the northeast, and has also water borders with Denmark, Germany and Poland to the south and Estonia, Latvia, Lithuania and Russia to the east. Sweden is also connected to Denmark by a bridge-tunnel across the Öresund.
Hamburger
A hamburger (or burger for short) is a sandwich consisting of a cooked patty of ground meat, (usually beef, but occasionally pork, turkey, or a combination of meats) placed between two buns. Hamburgers are often served with lettuce, bacon, tomato, onion, pickles, cheese and condiments such as mustard, mayonnaise, ketchup and relish.[1] The hamburger has attained widespread popularity and is proliferated worldwide in chains such as McDonald's or Burger King.
Hollywood, Los Angeles, California
Hollywood is a district in Los Angeles, situated west-northwest of Downtown Los Angeles.[2] Due to its fame and cultural identity as the historical center of movie studios and movie stars, the word "Hollywood" is often used as a metonymy of American cinema, and is often interchangably used to refer to the greater Los Angeles area in general. The nickname StarStruck Town refers to Hollywood and the movie industry.[3] Today, much of the movie industry has dispersed into surrounding areas such as the Westside neighborhood,[4] but significant auxiliary industries, such as editing, effects, props, post-production and lighting companies remain in Hollywood, as does the backlot of Paramount Pictures.
Many historic Hollywood theaters are used as venues and concert stages to premiere major theatrical releases and host the Academy Awards. It is a popular destination for nightlife, tourism, and is home to the Hollywood Walk of Fame.
Although it is not the typical practice of the city of Los Angeles to establish specific boundaries for districts or neighborhoods, Hollywood is a recent exception. On February 16, 2005, California Assembly Members Goldberg and Koretz introduced a bill to require California to keep specific records on Hollywood as though it were independent. For this to be done, the boundaries were defined. This bill was unanimously supported by the Hollywood Chamber of Commerce and the Los Angeles City Council. Assembly Bill 588 was approved by the Governor of California on August 28, 2006, and now the district of Hollywood has official borders. The border can be loosely described as the area east of Beverly Hills and West Hollywood, south of Mulholland Drive, Laurel Canyon, Cahuenga Boulevard, and Barham Boulevard, and the cities of Burbank and Glendale, north of Melrose Avenue and west of the Golden State Freeway and Hyperion Avenue. This includes all of Griffith Park and Los Feliz—two areas that were hitherto generally considered separate from Hollywood by most Angelenos. The population of the district, including Los Feliz, as of the 2000 census was 123,436 and the median household income was $33,409 in 1999.[1]
As a portion of the city of Los Angeles, Hollywood does not have its own municipal government, but does have an official, appointed by the Hollywood Chamber of Commerce, who serves as an honorary "Mayor of Hollywood" for ceremonial purposes only. Johnny Grant held this position for decades, until his death on January 9, 2008.German language
German (Deutsch, 
[ˈdɔʏtʃ] (help·info)) is a West Germanic language, thus related to and classified alongside English and Dutch. It is one of the world's major languages and the most widely spoken first language in the European Union. Globally, German is spoken by approximately 105 million native speakers and also by about 80 million non-native speakers. Standard German is widely taught in schools, universities and Goethe Institutes worldwide.
[ˈdɔʏtʃ] (help·info)) is a West Germanic language, thus related to and classified alongside English and Dutch. It is one of the world's major languages and the most widely spoken first language in the European Union. Globally, German is spoken by approximately 105 million native speakers and also by about 80 million non-native speakers. Standard German is widely taught in schools, universities and Goethe Institutes worldwide.
Bse Sensex
BSE Sensex or Bombay Stock Exchange Sensitive Index is a value-weighted index composed of 30 stocks that started January 1, 1986. The Sensex is regarded as the pulse of the domestic stock markets. It consists of the 30 largest and most actively traded stocks, representative of various sectors, on the Bombay Stock Exchange. These companies account for around fifty per cent of the market capitalization of the BSE. The base value of the sensex is 100 on April 1, 1979, and the base year of BSE-SENSEX is 1978-79.
At a regular intervals, the Bombay Stock Exchange (BSE) authorities review and modify its composition to make sure it reflects current market conditions. The index is calculated based on a free-float capitalization method; a variation of the market cap method. Instead of using a company's outstanding shares it uses its float, or shares that are readily available for trading. The free-float method, therefore, does not include restricted stocks, such as those held by promoters, government and strategic investors.[1].
Initially, the index was calculated based on the ‘full market capitalization’ method. However this was shifted to the free float method with effect from September 1, 2003. Globally, the free float market capitalization is regarded as the industry best practice.
As per free float capitalization methodology, the level of index at any point of time reflects the free float market value of 30 component stocks relative to a base period. The Market Capitalization of a company is determined by multiplying the price of its stock by the number of shares issued by the company. This Market capitalization is multiplied by a free float factor to determine the free float market capitalization. Free float factor is also referred as adjustment factor. Free float factor represent the percentage of shares that are readily available for trading.
The Calculation of Sensex involves dividing the free float market capitalization of 30 companies in the index by a number called Index divisor.The Divisor is the only link to original base period value of the Sensex. It keeps the index comparable over time and is the adjustment point for all Index adjustments arising out of corporate actions, replacement of scrips, etc.
The index has increased by over ten times from June 1990 to the present. Using information from April 1979 onwards, the long-run rate of return on the BSE Sensex works out to be 18.6% per annum, which translates to roughly 9% per annum after compensating for inflation.Australian Market and Social Research Society Limited
The Australian Market and Social Research Society Limited (AMSRS) is a professional membership body of over 2,100 market research professionals who are committed to strengthening the standards and awareness of both market and social research in Australia.[1]
AMSRS provides a variety of services for members to extend their knowledge and understanding of market and social research. AMSRS also provides information to the wider community on the benefits of market research[1].
The demand for market and social market research in Australia has increased substantially as organisations have recognised the growing need for research on which key policy and strategic decisions are based. AMSRS’s mission is to expand Australia’s market and social research industry through the provision of standards, commitment to education and member services.
AMSRS vision is “for market research to be understood, valued and widely used by business, government and the community and for the AMSRS qualifications and standards to be the guarantee of quality”[1].
The society works closely with the Market Research Quality Assurance Council[2] and the Association of Market and Social Research Organsiations (AMSRO).
The Australian Market and Social Research Society is affiliated with international marketing research societies in England, New Zealand, Japan, The Philippines and France. AMSRS is an active member of the International Marketing Federation and European Society for Opinion and Marketing Research (ESOMAR).
The AS ISO standard 20252, was published worldwide in 2006 as the model for market, opinion and social research in the market research industry. The standard was published in Australia in 2007 and AS ISO 20252 has been adopted by AMSRS as the Australian Standard for Market and Social Marketing Research.
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