Rabu, 28 Desember 2011

Justin Bieber

Pop star Justin Bieber was the most searched for person on Microsoft’s Search Engine, Bing, in 2011.

Canadian pop singer Justin Bieber ranked sixth on the list in 2010 but managed to nab top spot from Kim Kardashian in 2011 thanks to his high profile performances and ongoing My World Tour
through Europe, Asia and America the release of his second studio album Under the Mistletoe and the release of his film Never Say Never.

Mark Wahlberg, once known as teen hip hop heartthrob Marky Mark, must see a lot of himself in Justin Bieber. He is banking on the fact that Bieber will similarly be able to make the transition to esteemed actor, and thus cast the "Under the Mistletoe" singer to star opposite himself in the still-unnamed basketball film that begins filming over the summer.

While the film's plot is hush-hush, Wahlberg has revealed that the two main characters in the movie are an "old guy," played by himself, and a "young guy," played by Bieber. And Wahlberg says he didn't need to see an elaborate screen test to know that Bieber was perfect to play the younger guy.

Justin Bieber‘s grandparents have been involved in a nasty car accident in Canada.  Their vehicle was written off but the pair survived. Details are sketchy at this stage. Bruce Dale  – his maternal Grandfather – has several broken ribs. There are reports his grandmother Diane Dale escaped unhurt.

Justin Bieber Wallpapers

Senin, 16 Mei 2011

Diabetes Mellitus Type 2

In Type 2 diabetes, formerly known as non-insulin-dependent diabetes mellitus (NIDDM) and adult-onset diabetes, the body’s delicate balance between insulin production and the ability of cells to use insulin goes awry. Symptoms characteristic of Type 2 diabetes include those found in Type 1 diabetes, as well as repeated infections or skin sores that heal slowly or not at all, generalized tiredness, and tingling or numbness in the hands or feet.

Of the nearly 21 million people in the United States with diabetes, 90 to 95 percent have Type 2 diabetes. About 90 percent of all diabetes cases in Canada are Type 2. The onset of Type 2 diabetes usually occurs after the age of 45, although the incidence of the disease in younger people is growing rapidly. Because symptoms develop slowly, individuals with the disease may not immediately recognize that they are sick. A number of genes are involved in Type 2 diabetes. In addition, there is a strong relationship between obesity and Type 2 diabetes. About 80 percent of diabetics with this form of the disease are significantly overweight

If left untreated, diabetes mellitus may cause life-threatening complications. Type 1 diabetes can result in diabetic coma (a state of unconsciousness caused by extremely high levels of glucose in the blood) or death. In both Type 1 and Type 2 diabetes, complications may include blindness, kidney failure, and heart disease. Diabetes can cause tiny blood vessels to become blocked; when this occurs in blood vessels of the eye, it can result in retinopathy (the breakdown of the lining at the back of the eye), causing blindness. Diabetes mellitus is the leading cause of new cases of blindness in people aged 20 to 74. In the kidneys, diabetes can lead to nephropathy (the inability of the kidney to properly filter toxins from the blood). About 40 percent of new cases of end-stage renal disease (kidney failure) are caused by diabetes mellitus. Blockages of large blood vessels in diabetics can lead to many cardiovascular problems, including high blood pressure, heart attack, and stroke. Although these conditions also occur in nondiabetic individuals, people with diabetes are two to four times more likely to develop cardiovascular disorders.

Obat Diabetes Melitus

American Architecture

American Architecture, architecture that developed in the European colonies in America and subsequently in the United States. This development covers a period of almost five centuries, beginning with the establishment of Saint Augustine in Florida in 1565, English settlement along the Atlantic Coast in 1585, and Spanish settlement in New Mexico in 1598. Settlers from France, Sweden, The Netherlands, Germany, and other countries arrived in the 1600s.

The full history of building in what became the United States reaches back 10,000 years, but European settlers almost universally ignored the many building traditions of Native American peoples. Over the five centuries after European arrival, transplanted European building traditions were gradually reshaped and redefined. They emerged as distinctly American building traditions by the early 19th century. Each of the European colonies in North America developed its own building tradition.

In the 1800s innovations in technology and the spread of railroads made possible the rapid growth of the Midwest and West. Mass-produced building parts, manufactured in the East, could be ordered from catalogs and shipped West by rail. A major fire in 1871 destroyed downtown Chicago, Illinois, and offered building opportunities for American architects, who over the next 25 years developed the first skyscrapers. This brand-new building type, devised in the United States, influenced architecture around the world from the late 1800s into the 2000s. During the 20th century architects and entrepreneurs vied to build the tallest skyscraper—a contest that continues today. Another unique building type developed in America was the single-family suburban house—a detached or stand-alone building, as opposed to the attached or semiattached suburban house popular elsewhere. It, too, influenced architecture outside the United States.

The emigration of European architects in the 1930s and 1940s brought European modernism to the United States, and in the second half of the 20th century America became a major architectural force. By the late 1900s and early 2000s American architects worked around the globe, while architects from Japan and Spain, to mention only two examples, received commissions for major public buildings in the United States.

Living Room and Bed Room Decorating ideas

Selasa, 12 April 2011

Creating and Receiving the Signal

Devices such as the telegraph and telephone relay messages by creating modulated electrical impulses, or impulses that change in a systematic way. These impulses are then sent along wires, through the air as radio waves, or via other media to a receiver that decodes the modulation. The telegraph, the earliest method of delivering telecommunications, works by converting the contacts (connections between two conductors that permit a flow of current) between a telegraph key and a metal conductor into electrical impulses. These impulses are sent along a wire to a receiver, which converts the impulses into short and long bursts of sound or into dots and dashes on a simple printing device. Specific sequences of dots and dashes represent letters of the alphabet. In the early days of the telegraph, these sequences were decoded by telegraph operators (see Morse Code, International). In this way, telegraph operators could transmit and receive letters that spelled words. Later versions of the telegraph could decipher letters and numbers automatically. Telegraphs have been largely replaced by other forms of telecommunications, such as electronic mail (e-mail), but they are still used in some parts of the world to send messages.

The telephone uses a diaphragm (small membrane) connected to a magnet and a wire coil to convert sound into an analog or electrical waveform representation of the sound. When a person speaks into the telephone’s microphone, sound waves created by the voice vibrate the diaphragm, which in turn creates electrical impulses that are sent along a telephone wire. The receiver’s wire is connected to a speaker, which converts the modulated electrical impulses back into sound.

Broadcast radio and cellular radio telephones are examples of devices that create signals by modulating radio waves. A radio wave is one type of electromagnetic radiation, a form of energy that travels in waves. Microwaves are also electromagnetic waves, but with shorter wavelengths and higher frequencies. In telecommunications, a transmitter creates and emits radio waves. The transmitter electronically modulates or encodes sound or other information onto the radio waves by varying either the amplitude (height) of the radio waves, or by varying the frequency (number) of the waves within an established range (see Frequency Modulation). A receiver (tuner) tuned to a specific frequency or range of frequencies will pick up the modulation added to the radio waves. A speaker connected to the tuner converts the modulation back into sound.

Broadcast television works in a similar fashion. A television camera takes the light reflected from a scene and converts it into an electronic signal, which is transmitted over high-frequency radio waves. A television set contains a tuner that receives the signal and uses that signal to modulate the images seen on the picture tube. The picture tube contains an electron gun that shoots electrons onto a photo-sensitive display screen. The electrons illuminate the screen wherever they fall, thus creating moving pictures.

Telegraphs, telephones, radio, and television all work by modifying electronic signals, making the signals imitate, or reproduce, the original message. This form of transmission is known as analog transmission. Computers and other types of electronic equipment, however, transmit digital information. Digital technologies convert a message into an electronic or optical form first by measuring different qualities of the message, such as the pitch and volume of a voice, many times. These measurements are then encoded into multiple series of binary numbers, or 1s and 0s. Finally, digital technologies create and send impulses that correspond to the series of 1s and 0s. Digital information can be transmitted faster and more clearly than analog signals, because the impulses only need to correspond to two digits and not to the full range of qualities that compose the original message, such as the pitch and volume of a human voice. While digital transmissions can be sent over wires, cables or radio waves, they must be decoded by a digital receiver. New digital telephones and televisions are being developed to make telecommunications more efficient.

Personal computers primarily communicate with each other and with larger networks, such as the Internet, by using the ordinary telephone network. Increasing numbers of computers rely on broadband networks provided by telephone and cable television companies to send text, music, and video over the Internet at high speeds. Since the telephone network functions by converting sound into electronic signals, the computer must first convert its digital data into sound. Computers do this with a device called a modem, which is short for modulator/demodulator. A modem converts the stream of 1s and 0s from a computer into an analog signal that can then be transmitted over the telephone network, as a speaker’s voice would. The modem of the receiving computer demodulates the analog sound signal back into a digital form that the computer can understand.

Telecommunications

Telecommunications, devices and systems that transmit electronic or optical signals across long distances. Telecommunications enables people around the world to contact one another, to access information instantly, and to communicate from remote areas. Telecommunications usually involves a sender of information and one or more recipients linked by a technology, such as a telephone system, that transmits information from one place to another.

Telecommunications enables people to send and receive personal messages across town, between countries, and to and from outer space. It also provides the key medium for delivering news, data, information, and entertainment.

Telecommunications devices convert different types of information, such as sound and video, into electronic or optical signals. Electronic signals typically travel along a medium such as copper wire or are carried over the air as radio waves. Optical signals typically travel along a medium such as strands of glass fibers. When a signal reaches its destination, the device on the receiving end converts the signal back into an understandable message, such as sound over a telephone, moving images on a television, or words and pictures on a computer screen.

Telecommunications messages can be sent in a variety of ways and by a wide range of devices. The messages can be sent from one sender to a single receiver (point-to-point) or from one sender to many receivers (point-to-multipoint). Personal communications, such as a telephone conversation between two people or a facsimile (fax) message (see Facsimile Transmission), usually involve point-to-point transmission. Point-to-multipoint telecommunications, often called broadcasts, provide the basis for commercial radio and television programming.