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Thursday, December 4, 2008

Forex

A forex scam is any trading scheme used to defraud individual traders by convincing them that they can expect to gain a high profit by trading in the foreign exchange market. Currency trading "has become the fraud du jour," according to Michael Dunn of the U.S. Commodity Futures Trading Commission. But "the market has long been plagued by swindlers preying on the gullible," according to the New York Times . "The average individual foreign-exchange-trading victim loses about $15,000, according to CFTC records" according to The Wall Street Journal. The North American Securities Administrators Association says that "off-exchange forex trading by retail investors is at best extremely risky, and at worst, outright fraud."“In a typical case, investors may be promised tens of thousands of dollars in profits in just a few weeks or months, with an initial investment of only $5,000. Often, the investor’s money is never actually placed in the market through a legitimate dealer, but simply diverted – stolen – for the personal benefit of the con artists.”In August, 2008 the CFTC set up a special task force to deal with growing foreign exchange fraud.The forex market is a zero-sum game , meaning that whatever one trader gains, another loses, except that brokerage commissions and other transaction costs are subtracted from the results of all traders, technically making forex a "negative-sum" game.These scams might include churning of customer accounts for the purpose of generating commissions, selling software that is supposed to guide the customer to large profits, improperly managed "managed accounts", false advertising, Ponzi schemes and outright fraud. It also refers to any retail forex broker who indicates that trading foreign exchange is a low risk, high profit investment. The U.S. Commodity Futures Trading Commission (CFTC), which loosely regulates the foreign exchange market in the United States, has noted an increase in the amount of unscrupulous activity in the non-bank foreign exchange industry.An official of the National Futures Association was quoted as saying, "Retail forex trading has increased dramatically over the past few years. Unfortunately, the amount of forex fraud has also increased dramatically..." Between 2001 and 2006 the U.S. Commodity Futures Trading Commission has prosecuted more than 80 cases involving the defrauding of more than 23,000 customers who lost $350 million. From 2001 to 2007, about 26,000 people lost $460 million in forex frauds. CNN quoted Godfried De Vidts, President of the Financial Markets Association, a European body, as saying, "Banks have a duty to protect their customers and they should make sure customers understand what they are doing. Now if people go online, on non-bank portals, how is this control being done?"Contents

Not beating the marketThe foreign exchange market is a zero sum game in which there are many experienced well-capitalized professional traders (e.g. working for banks) who can devote their attention full time to trading. An inexperienced retail trader will have a significant information disadvantage compared to these traders.Although it is possible for a few experts to successfully arbitrage the market for an unusually large return, this does not mean that a larger number could earn the same returns even given the same tools, techniques and data sources. This is because the arbitrages are essentially drawn from a pool of finite size; although information about how to capture arbitrages is a nonrival good, the arbritrages themselves are a rival good. (To draw an analogy, the total amount of buried treasure on an island is the same, regardless of how many treasure hunters have bought copies of a treasure map.)Retail traders are - almost by definition - undercapitalized. Thus they are subject to the problem of gambler's ruin. In a fair game (one with no information advantages) between two players that continues until one trader goes bankrupt, the player with the lower amount of capital has a higher probability of going bankrupt first. Since the retail speculator is effectively playing against the market as a whole - which has nearly infinite capital - he will almost certainly go bankrupt.The retail trader always pays the bid/ask spread which makes his odds of winning less than those of a fair game. Additional costs may include margin interest, or if a spot position is kept open for more than one day the trade may be "resettled" each day, each time costing the full bid/ask spread.According to the Wall Street Journal (Currency Markets Draw Speculation, Fraud July 26, 2005) "Even people running the trading shops warn clients against trying to time the market. 'If 15% of day traders are profitable,' says Drew Niv, chief executive of FXCM, 'I'd be surprised.' Paul Belogour, the Managing Director of a Boston based retail forex trader, was quoted by the Financial Times as saying, "Trading foreign exchange is an excellent way for investors to find out how tough the markets really are. But I say to customers: if this is money you have worked hard for – that you cannot afford to lose – never, never invest in foreign exchange."The use of high leverageBy offering high leverage, the market maker encourages traders to trade extremely large positions. This increases the trading volume cleared by the market maker and increases his profits, but increases the risk that the trader will receive a margin call. While professional currency dealers (banks, hedge funds) never use more than 10:1 leverage, retail clients are generally offered leverage between 50:1 and 200:1A self-regulating body for the foreign exchange market, the National Futures Association, warns traders in a forex training presentation of the risk in trading currency. “As stated at the beginning of this program, off-exchange foreign currency trading carries a high level of risk and may not be suitable for all customers. The only funds that should ever be used to speculate in foreign currency trading, or any type of highly speculative investment, are funds that represent risk capital; in other words, funds you can afford to lose without affecting your financial situation.“

Voice Over Internet Protocal

Voice over Internet Protocol (VoIP, IPA: /vɔɪp/) is a general term for a family of transmission technologies for delivery of voice communications over the Internet or other packet-switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony and Internet telephony, as well as voice over broadband, broadband telephony, and broadband phone, when the network connectivity is available over broadband Internet access. Voip
VoIP systems usually interface with the traditional public switched telephone network (PSTN) to allow for transparent phone communications worldwide.

VoIP can be a benefit for reducing communication and infrastructure costs by routing phone calls over existing data networks and avoiding duplicate network systems. Skype and Vonage are notable service provider examples that have achieved widespread user and customer acceptance and market penetration.


Voice-over-IP systems carry telephony speech as digital audio, typically reduced in data rate using speech data compression techniques, packetized in small units of typically tens of milliseconds of speech, and encapsulated in a packet stream over IP.



Sources form : wikipedia


Cancer

Cancer (medical term: malignant neoplasm) is a class of diseases in which a group of cells display uncontrolled growth (division beyond the normal limits), invasion (intrusion on and destruction of adjacent tissues), and sometimes metastasis (spread to other locations in the body via lymph or blood). These three malignant properties of cancers differentiate them from benign tumors, which are self-limited, do not invade or metastasize. Most cancers form a tumor but some, like leukemia, do not. The branch of medicine concerned with the study, diagnosis, treatment, and prevention of cancer is oncology.

Cancer may affect people at all ages, even fetuses, but the risk for most varieties increases with age.[1] Cancer causes about 13% of all deaths.[2] According to the American Cancer Society, 7.6 million people died from cancer in the world during 2007.[3] Cancers can affect all animals.
Nearly all cancers are caused by abnormalities in the genetic material of the transformed cells. These abnormalities may be due to the effects of carcinogens, such as tobacco smoke, radiation, chemicals, or infectious agents. Other cancer-promoting genetic abnormalities may be randomly acquired through errors in DNA replication, or are inherited, and thus present in all cells from birth. The heritability of cancers are usually affected by complex interactions between carcinogens and the host's genome. New aspects of the genetics of cancer pathogenesis, such as DNA methylation, and microRNAs are increasingly recognized as important.

Genetic abnormalities found in cancer typically affect two general classes of genes. Cancer-promoting oncogenes are typically activated in cancer cells, giving those cells new properties, such as hyperactive growth and division, protection against programmed cell death, loss of respect for normal tissue boundaries, and the ability to become established in diverse tissue environments. Tumor suppressor genes are then inactivated in cancer cells, resulting in the loss of normal functions in those cells, such as accurate DNA replication, control over the cell cycle, orientation and adhesion within tissues, and interaction with protective cells of the immune system.

Diagnosis usually requires the histologic examination of a tissue biopsy specimen by a pathologist, although the initial indication of malignancy can be symptoms or radiographic imaging abnormalities. Most cancers can be treated and some cured, depending on the specific type, location, and stage. Once diagnosed, cancer is usually treated with a combination of surgery, chemotherapy and radiotherapy. As research develops, treatments are becoming more specific for different varieties of cancer. There has been significant progress in the development of targeted therapy drugs that act specifically on detectable molecular abnormalities in certain tumors, and which minimize damage to normal cells. The prognosis of cancer patients is most influenced by the type of cancer, as well as the stage, or extent of the disease. In addition, histologic grading and the presence of specific molecular markers can also be useful in establishing prognosis, as well as in determining individual treatments.
Sources form : Wikipedia