Update Update may refer to: * Update, an SQL statement for changing database records * A patch, also known as a software update * Update, an academic computer society at Uppsala University in Sweden.
	Upland Sandpiper The Upland Sandpiper, Bartramia longicauda, is a large shorebird, closely related to the curlews. Older names are the Upland Plover and Bartram's Sandpiper. It is the only member of the genus Bartramia. The adult is 28-32 cm long with a 50-55 cm wingspan. It has long yellow legs and a long neck and tail.
	Upper class Upper class refers to a group of people at the top of a social hierarchy. Members of an upper class often have great power over the allocation of resources and governmental policy in their area. The term "upper class" has had a complex range of meanings and usages. In many traditional societies, membership of the upper class was hard or even impossible to acquire by any means other than being born into it.
	Upper Volta Upper Volta was the name of the African country now called Burkina Faso. The name change occurred on August 4, 1984, instigated by Thomas Sankara, the leader of the country at that time. The old name indicates that the country contains the upper part of the river Volta River.
	Uppercut The uppercut, is a punch used in Boxing that usually aims at the opponent's chin. It is, along with the Hook, one of the two main punches that count in the statistics as power punches. Uppercuts are useful when thrown at close range, because they are considered to cause more damage when at close range.
	Uppsala Uppsala is a Cities of Sweden in central Sweden, located about 70 km north of Stockholm. It is the fourth largest city in Sweden with its 130,000 inhabitants; including immediate surroundings, Uppsala Municipality amounts to 183 403 . Uppsala is the capital of Uppsala County , and Sweden's ecclesiastical centre, being the seat of Archbishop of Uppsala since 1164.
	Upset Upset is a term used when referring to a competition, frequently in election politics or sports. When an upset occurs, the party popularly expected to win the competition is defeated by an underdog the majority expects to lose, defying the conventional wisdom.
	Upside-down cake An upside-down cake is a cake made upside-down in a pan and then, once cooked, turned over and allowed to set, and is eaten right-side-up. This process requires that the top of the cake be placed on the bottom of the cake pan and the bottom on top. Usually, chopped fruits such as pineapples and cherries are placed at the bottom of the pan before the batter is poured in, so that they form a decorative topping once the cake is inverted.
	Upton Sinclair Upton Beall Sinclair Jr. was a prolific United States author who wrote over 90 books in many genres, often advocating Socialism views, and achieved considerable popularity in the first half of the 20th century. He gained particular fame for his novel, The Jungle, which dealt with conditions in the U.S.
	Ur Ur was an ancient city in southern Mesopotamia, located near the original mouth of the Euphrates and Tigris rivers on the Persian Gulf and close to Eridu. Because of marine regression , the remains are now well inland in present-day Iraq, south of the Euphrates on its right bank, and named Tell el-Mukayyar , near the city of Nasiriyah south of Baghdad.
	Uracil Uracil is a common naturally occurring pyrimidine. Uracil was originally discovered in 1900 and it was isolated by hydrolysis of yeast nuclein that was found in bovine thymus and spleen, herring sperm, and wheat germ. Uracil is a planar, unsaturated compound that has the ability to absorb light
	Ural Mountains The Ural Mountains also known simply as the Urals and as the Riphean Mountains in Classical antiquity, is a mountain range that runs roughly north and south through western Russia. The Urals extend 2,500 km from the Kazakh steppes along the northern border of Kazakhstan to the coast of the Arctic ocean.
	Uralic languages The Uralic languages form a language families of about 30 languages spoken by approximately 20 million people. The name of the language family refers to the location of the familys suggested Urheimat , which is often placed close to the Ural mountains. Countries that are home to a significant number of speakers of Uralic languages include Estonia, Finland, Hungary, Norway, Romania, Russia, the Serbian province of Vojvodina, and Sweden.
	Urania In Greek mythology, Urania was the muse of astronomy and astrology. She is usually depicted as having a globe in her left hand and a peg in the right. She is able to fortell the future by the position of the stars. She is often associated with Universal Love and the Holy Spirit.
	Uraninite Uraninite is a uranium-rich mineral with a composition that is largely UO2 , but which also contains uranium trioxide and oxides of lead, thorium, and rare earths. It is most commonly known in the variety pitchblende. All uraninite minerals contain a small amount of radium as a radioactive decay product of uranium; it was in pitchblende from the Jchymov in Czechoslovakia that Maria Sklodowska-Curie discovered radium.
	Uranium Uranium is a chemical element in the periodic table that has the symbol U and atomic number 92. Heavy, silvery-white, metallic, naturally radioactivity, uranium belongs to the actinide series. Its isotopes uranium-235 and to a lesser degree uranium-233 are used as the fuel for nuclear reactors and the explosive material for nuclear weapons.
	Uranus Uranus is the seventh planet from the Sun. It is a gas giant, the third largest by diameter and fourth largest by mass. It is named after Uranus , the Greek god of the sky and progenitor of the other gods. Its symbol is either or . The first symbol derives from the name of its discoverer, William Herschel.
	Uranyl The uranyl ion is the dipositive cation UO22+, which forms salts with acids. In this ion, uranium is in its +6 oxidation state. The other common oxidation state of uranium is uranium(IV), called uranous. The uranyl ion is the most common species encountered in the aqueous chemistry of uranium.
	Urban area An urban area is an area with an increased density of human-created structures in comparison to the areas surrounding it. This term is at one end of the spectrum of suburban and rural areas. An urban area is more frequently called a city or town. Urban areas are created and further developed by the process of urbanization.
	Urban planning Urban, city, or town planning is the discipline of land use planning which deals with the physical, social, and economic development of metropolitan regions, municipalities and neighborhoods. Other professions deal in more detail with a smaller scale of development, namely architecture, landscape architecture and urban design.
	Urban renewal Urban renewal is a function of urban planning that in the United States reached its peak from the late 1940s through to the early 1970s. It has had a massive impact on the urban landscape and continues to the present day. It has also played an important role in cities worldwide, such as Saint John, New Brunswick, Darlinghurst, New South Wales, Glasgow, Scotland and Bilbao, Spain, as well as Canary Wharf, in London, and Cardiff Bay in Cardiff.
	Urban sprawl Urban sprawl, a term with pejorative implication, refers to the rapid and expansive growth of a greater metropolitan area, traditionally suburbs over a large area. "Urban sprawl" may be a loaded word and it can have negative connotations. The phrase has been used by some critics to describe almost any urban growth, but this usage is misleading.
	Urbanization Urbanization or urbanisation is the increase over time in population or extent of city and towns. Urbanisation has profound effects on the ecology of a region and on its Economics. Urban sociology also observes that people's psychology and lifestyles change in an urban environment.
	Urdu ' is an Indo-European languages of the Indo-Aryan languages that developed under Persian language, Turkish language, Pashto Language, Arabic Language, Hindi language, and Sanskrit language influence in South Asia during the Delhi Sultanate and Mughal Empire .
	Urea Urea is an organic compound of carbon, nitrogen, oxygen and hydrogen, with the chemical formula CarbonOxygenNitrogen2Hydrogen4 or 2CarbonOxygen. Urea is also known as carbamide, especially in the recommended International Non-proprietary Names in use in Europe.
	Urease Urease is an enzyme that catalysis the hydrolysis of urea into carbon dioxide and ammonia. The reaction occurs as follows: Urea + H2O → carbon dioxide + 2ammonia In 1926 James Sumner showed that urease is a protein.
	Urethra In anatomy, the urethra is a tube which connects the urinary bladder to the outside of the body. The urethra has an excretory function in both sexes to pass urine to the outside, and also a reproductive function in the male, as a passage for sperm. The external urethral sphincter is a smooth muscle that allows voluntary control over urination.
	URGE URGE or URGE.com is an online music service announced on December 13, 2005 and released on May 17, 2006. It is a collaboration between MTV and Microsoft and will be integrated with Microsoft's Windows Media Player.
	Uria Uria is a genus of seabirds in the auk family. These are medium-sized guillemots with mainly brown or black plumage in the breeding season. They breed on the coasts of the northern Atlantic Ocean and Pacific Oceans There are two species: *Common Guillemot or Common Murre, Uria aalge
	Uric acid Uric acid is an organic compound of carbon, nitrogen, oxygen and hydrogen with the formula C5H4N4O3.
	Urinal A urinal is a specialized toilet designed to be used only for urination, not defecation, and almost always by a standing man. Advantages over a full-function toilet include: it is smaller, uses much less water, and the regular version is for regular adults at a convenient higher height.
	Urinary system The urinary system is the organ system that produces, stores, and eliminates urine. In humans it includes two kidneys, two ureters, the urinary bladder, two Urethral sphincters, and the urethra. The analogous organ in invertebrates is the nephridium.
	Urmia Urmia is a district and a city located in northwestern Iran. It is also the capital of the West Azerbaijan province, situated on the western side of Lake Urmia near the Turkey border. Its population in 2005 is estimated at 602,403 .
	Urn An urn is a vase, ordinarily covered and without handles that usually has a narrowed neck above a footed pedestal. Knife urns on pedestals flanking a dining-room sideboard were an English innovation of the late 1760s that went out of fashion as sideboards with deep cupboard drawers were introduced at the end of the following decade.
	Urobilin Urobilin is a yellow breakdown Product of haem catabolism. External links
	Urobilinogen Urobilinogen is a colourless product of bilirubin reduction. It is formed in the intestines by bacterial action. Part of it is resorbed and returned to the liver, while the rest is excreted in faeces. Trace amounts can be detected in urine. * Information
	Urocyon The genus Urocyon contains two Western Hemisphere members of the fox family, the Gray Fox and the closely related Island Fox, of the family Canidae. They are the only canids able to climb trees. Urocyon is one of the oldest fox genera still in existence. A third species, apparently close to extinction or even already extinct, is or found on the island of Cozumel, Mexico.
	Urokinase Urokinase, also called urokinase-type Plasminogen Activator, is a serine protease. Urokinase was originally isolated from human urine, but is present in several physiological locations, such as blood stream and the extracellular matrix. The primary physiological substrate is plasminogen, which is an inactive zymogen form of the serine protease plasmin.
	Urosaurus The North America genus Urosaurus belongs to the New World Iguanian family Phrynosomatidae. They can be distinguished from members of the genus Sceloporus by the presence of a gular fold and granular lateral scales. They can be distinguished from members of the genus Side-blotched lizard by the presence of enlarged dorsal scales.
	Urosaurus ornatus The Tree lizard is a species of lizard native to the southwestern United States, and northern Mexico. The species has been used to research the physiological changes in the body during the fight-or-flight response as related to stress and aggressive competition [PMID 9145930].
	Ursa Major Ursa Major is a constellation visible throughout the year in the northern hemisphere. Its name means Great Bear in Latin, and is associated with the legend of Callisto the Greek myth.
	Urticaceae Urticaceae, or the nettle family, is a family of flowering plants in the order Rosales. This family includes a number of well-known, interesting and useful plants, including the nettles, Ramie, Mamaki, and Ajlai.
	Urticaria Urticaria or hives is a relatively common form of Allergy that causes raised red skin welt . Urticaria is also known as nettle rash or uredo. These welts can be to 5 mm in diameter or more, itch severely, and often have a pale border. Urticaria is generally caused by direct contact with an allergenic substance, or an immune response to food or some other allergen.
	Uruguay Uruguay, officially the Eastern Republic of Uruguay or the Republic East of the Uruguay , is a country located in southern South America. It is bordered by Brazil to the north, the Uruguay River to the west, the estuary of the Ro de la Plata to the southwest, with Argentina on the other bank of both, and finally the South Atlantic Ocean to the southeast.
	Uruguay River The Uruguay River is a river in South America. It flows from north to south and makes boundary with Brazil, Argentina and Uruguay, separating some of the Argentine provinces of the Mesopotamia, Argentina from the other two countries. It passes between the states of Santa Catarina and Rio Grande do Sul in Brazil; forms the eastern border of the provinces of Misiones Province, Corrientes Province and Entre Ros Province in Argentina; and ma
	Usas The game of Usas is a platform game for the MSX with two main characters called Wit and Cles. Both characters have personal abilities. Using special 'emotion/mood' icons various abilities will be triggered. The name refers to the goddess Ushas. Each of the game's five stage is divided into four sub-stages and a boss area.
	Ushas Ushas, Sanskrit for "dawn", is a Vedic deity. She is the chief goddess exalted in the Rig Veda. She is portrayed as a beautifully adorned, sexually attractive young woman riding in a chariot. She is the daughter of Dyaus "Heaven", '. Twenty out of 1028 hymns in the Rig Veda are dedicated to Dawn: Book 7 has seven hymns, books 4–6 have two hymns each, and the younger books 1 and 10 have six and one respectively.
	Usnea Usnea is a common and scientific name for several species of lichen in the family Parmeliaceae, that generally grow hanging from tree branches, resembling grey or greenish hair. It is sometimes referred to as Old Man's Beard, Beard Lichen, or Treemoss. Usnea looks very similar to Spanish moss, so much so that the moss's Latin name is derived from it.
	Usury Usury?i}}/, from the Medieval Latin usuria, "interest" or "excessive interest", from Latin usura "interest") was defined originally as charging a fee for the use of money. This usually meant interest on loans, although charging a fee for changing money is included in the original meaning.
	Utah Utah is a U.S. state located in the western United States United States. It was the List of U.S. states by date of statehood admitted to the union on January 4, 1896. Approximately 80% of Utah's 2,500,000 people live in an urban concentration with Salt Lake City, Utah as the center, known as the Wasatch Front.
	Utahraptor Utahraptor is the largest known member of the theropod dinosaur family Dromaeosauridae, and dates from the upper Barremian faunal stage of the Lower Cretaceous period.
	Uto-Aztecan languages The Uto-Aztecan is a Indigenous languages of the Americas language family. The Uto-Aztecan languages are found from the Great Basin of the western United States, through Mexico. Utah is named after the indigenous Uto-Aztecan Ute Tribe people. Classical Nahuatl, the language of the Aztecs, and its modern successors are part of the Uto-Aztecan family.
	Utopia 'Utopia', in its most common and general positive meaning, refers to an imaginary, ideal civilization, which may range from a city to a world, and may be regarded as possible in the future, although not currently existant. Human efforts to create a better, or perhaps perfect society are called utopianism.
	Utopian socialism Utopian socialism is a term used to define the first currents of modern Socialism thought. Utopian socialists never actually used this name to describe themselves; the term "utopian socialism" was introduced by Karl Marx and used by later socialist thinkers, to describe early socialist or quasi-socialist intellectuals who created hypothetical visions of perfect egalitarian and communalist societies without actually concerning themselves with the manner in which these societies could be created or sustained.
	Utopianism Utopianism refers to the various social and political movements, and a significant body of religious and secular literature, based upon the idea of paradise on earth. It is related to the concept of Utopia.
	Uttar Pradesh Uttar Pradesh , also popularly known by its abbreviation U.P., means the 'northern province'. It is the most populous and fifth largest States and territories of India in the Union of India. Uttar Pradesh covers a large part of the highly fertile and densely populated upper Gangetic plain.
	Uvula The uvula is a small mass of tissue hanging down from the soft palate, near the back of the throat. The word is derived from the diminutive of uva, the Latin word for "grape", due to the uvula's grape-like shape. The uvula plays an important role in the articulation of the sound of the human voice to form the sounds of speech.
	Uzbekistan Uzbekistan, officially the Republic of Uzbekistan , is a landlocked#Doubly landlocked countries country in Central Asia. It shares borders with Kazakhstan to the west and to the north, Kyrgyzstan and Tajikistan to the east, and Afghanistan and Turkmenistan to the south.
	Uzbeks The Uzbeks are a Turkic people of Central Asia and comprise the majority population of Uzbekistan and are also located in other adjacent countries in the region. Uzbeks can be found primarily in Uzbekistan, along with large populations in Afghanistan, Tajikstan, Kyrgyzstan, Turkmenistan, Kazakhstan, Russia and the Xinjiang province of China.