Dienstag, 16. Dezember 2008

Freyr

This 19th century representation of Freyr by Jacques Reich shows Freyr with his boar and his sword.

Freyr (sometimes anglicized Frey, from *frawjaz "lord") is one of the most important gods of Norse paganism. Freyr was highly associated with agriculture, weather and, as a phallic fertility god, Freyr "bestows peace and pleasure on mortals". Freyr, sometimes referred to as Yngvi-Freyr, was especially associated with Sweden and seen as an ancestor of the Swedish royal house. In the Icelandic books the Poetic Edda and the Prose Edda, Freyr is presented as one of the Vanir, the son of the sea god Njörðr, brother of the goddess Freyja. The gods gave him Álfheimr, the realm of the Elves, as a teething present. He rides the shining dwarf-made boar Gullinbursti and possesses the ship Skíðblaðnir which always has a favorable breeze and can be folded together and carried in a pouch when it is not being used. He has the servants Skírnir, Byggvir and Beyla. The most extensive surviving Freyr myth relates Freyr's falling in love with the giantess Gerðr. Eventually, she becomes his wife but first Freyr has to give away his magic sword which fights on its own "if wise be he who wields it". Although deprived of this weapon, Freyr defeats the giant Beli with an antler. However, lacking his sword, ... More about Freyr

Okapi

The Okapi (Okapia johnstoni) is a mammal native to the Ituri Rainforest, located in the northeast of the Democratic Republic of the Congo, in central Africa. Although the Okapi bears striped markings reminiscent of the zebra, it is most closely related to the giraffe. The genus name Okapia derives from the Lese Karo name o'api, while the species' epithet (johnstoni) is in recognition of the explorer Sir Harry Johnston, who organized the expedition that first acquired an okapi specimen for science from the Ituri Forest in the Democratic Republic of the Congo. The name "Okapi" is a portmanteau of two Lese words. Oka a verb meaning to cut and Kpi which is a noun referring to the design made on Efe arrows by wrapping the arrow with bark so as to leave stripes when scorched by fire. The stripes on the legs of the Okapi resemble these stripes on the arrow shafts. Lese legend says the okapi decorates itself with these stripes. Okapis have reddish dark backs, with striking horizontal black stripes on the front and back legs, making them resemble zebras from a distance. These markings are thought to help young follow their mothers through the dense rain forest; they also serve as ... More about Okapi

Montag, 15. Dezember 2008

Khonj

Khonj (Persian: خنج) is a city in Fars province, Iran south of Shiraz (270 km distance) and with a population of 80,000. Its history goes back to 2000 years and were known to be the followers of Zoroastrianism. The ancient names for Khonj has always been Hong and konj (corner in Persian) and over time it was changed to khonj. Its residents are Sunni unlike most of the rest of the country, and are famous as traders. The city has historical significance as it was the home for many Muslim scholars and great architectures before and after Islam. Ibn Battuta the great Moroccan explorer wrote about his travels to Khonj in great detail. Nadir Shah attacked and set fire to the city, Khonj gave refuege to Afghans because they were Sunnis. Khonj agriculture is made of wheat, oat and Dates and khonj has the least amount of rain than any part of province of Fars. Khonj also has a seasonal lake that fills up each winter and is a popular with bird migration from Siberia and other places that are cold. Weather of Khonj is very hot and dry in summer from April till October with Temperature as high as 48C, its winter is from December till middle of March with temperatures from -1C up to 20C. ... More about Khonj

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Cyprinid

The family Cyprinidae, from the Ancient Greek κυπρῖνος (kuprīnos "carp"), consists of the carps, the true minnows, and their relatives (e.g. the barbs). They are commonly called cyprinids or carp and minnow family. It is the largest family of fresh-water fish, with over 2,400 species in about 220 genera. The family belongs to the order Cypriniformes, of whose genera and species the cyprinids make up two-thirds. Following the discovery that the mysterious mountain carps are a peculiar lineage of cyprinids, they are included herein, tentatively as subfamily Psilorhynchinae. The fish in this family are native to North America, Africa, and Eurasia. The largest cyprinid in this family is the Giant Barb (Catlocarpio siamensis), which may grow up to 3 m (10 ft). The largest North American species is the Colorado Pikeminnow (Ptychocheilus lucius), of which individuals up to 6 ft (1.8 m) long and weighing over 100 pounds (45 kg) have been recorded. On the other hand, many species are smaller than 5 cm (2 in). As of 2008, the smallest known freshwater fish is indeed a cypriniform, Danionella translucida, reaching 12 mm at the longest. All fish in this family are egg-layers and the breeding ... More about Cyprinid

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Sonntag, 14. Dezember 2008

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Aphasia

Aphasia (from Greek, aphatos : 'speechless'), also known as rhymnasia, is a loss of the ability to produce and/or comprehend language, due to injury to brain areas specialized for these functions, Broca's area, which governs language production, or Wernicke's area, which governs the interpretation of language. It is not a result of deficits in sensory, intellectual, or psychiatric functioning, nor due to muscle weakness or a cognitive disorder. Depending on the area and extent of the damage, someone suffering from aphasia may be able to speak but not write, or vice versa, or display any of a wide variety of other deficiencies in language comprehension and production, such as being able to sing but not speak. Aphasia may co-occur with speech disorders such as dysarthria or apraxia of speech, which also result from brain damage. Aphasia can be assessed in a variety of ways, from quick clinical screening at the bedside to several-hour-long batteries of tasks that examine the key components of language and communication. The prognosis of those with aphasia varies widely, and is dependent upon age of the patient, site and size of lesion, and type of aphasia. Usually, aphasias are a ... More about Aphasia

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Xcalibur

Xcalibur is a CGI sword-and-sorcery TV story series set in a medieval-like kingdom. Xcalibur was a French-Canadian production about a long quest for justice, and aired on YTV. King Edwan, ruler of a medieval-like Kingdom, is murdered by his treacherous brother Bragan who is in league with the demon Kwodahn. The murder is witnessed by Prince Erwann who, on the late King's orders, steals the sword Xcalibur and hides it. Xcalibur is the only weapon which can defeat Kwodahn. However, after hiding the sword, Erwann is turned to stone. Erwann's teenage daughter, Princess Djana, finds the sword but when she reaches the Royal Palace it is to learn that Bragan has already taken control of the Kingdom as Regent to Arthus, the 10-year-old son of the late King. Unable to convince Arthus or the lords of the Kingdom that Bragan is a traitor, Djana goes on the run. She is accompanied by Herek, a young apprentice sorcerer or Shogi, who has been entrusted with the Book of Life, a book of magic spells. There is also Wip, a small dragon who can stand on his hind legs, and Tara, a woman-warrior of the Viking-like People of the Sea, who want the right to settle in a part of the Kingdom. Djana must now ... More about Xcalibur

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Samstag, 13. Dezember 2008

Mustelidae

Mustelidae or Mustelids (from Latin mustela, weasel), commonly referred to as the weasel family, is a family of carnivorous mammals. The Mustelidae is a diverse family and the largest in the order Carnivora, at least partly because it has in the past been a catch-all category for many early or poorly differentiated taxa. The Mustelidae in general are phylogenetically relatively primitive and so were difficult to classify until genetic evidence started to become available. The increasing availability of such evidence may well result in some members of the family being moved to their own separate families, as has already happened with the skunks, previously considered to be members of the mustelid family. Mustelids vary greatly in size and behavior. The least weasel is not much larger than a mouse. The giant otter can weigh up to 34 kg (76 lb). The wolverine can crush bones as thick as the femur of a moose to get at the marrow, and has been seen attempting to drive bears from kills. The sea otter uses rocks to break open shellfish to eat. The marten is largely arboreal, while the badger digs extensive networks of tunnels, called setts. Some mustelids have been domesticated. The ... More about Mustelidae

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Agnostida

Agnostida (the agnostids) is an order of trilobite. These small trilobites first appeared toward the end of the Early Cambrian and thrived in the Middle Cambrian. They are present in the lower Cambrian fossil record along with trilobites from Orders Redlichiida, Corynexochida, and Ptychopariida. The last agnostids went extinct in the Late Ordovician. The Agnostida are divided into two suborders -- Agnostina and Eodiscina -- that are then divided into a number of families. As a group, agnostids have pygidia (tails) that are so similar in size and shape to their cephalons (heads) that it is difficult to distinguish which end is which. Most agnostid species were eyeless. The systematic position of Order Agnostida within Class Trilobita remains uncertain, and there has been continuing debate whether they are trilobites or a stem group. The challenge to the status has focused on the Agnostina partly because juveniles of one genus have been found with legs greatly different from those of adult trilobites, suggesting they are separately descended from Crustaceans. Other researchers have suggested, based on cladistic analyses, that Eodiscina and Agnostida are closely united, and that the ... More about Agnostida

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Fansub

A fansub (short for fan-subtitled) is a version of a foreign film or foreign television program which has been translated by fans and subtitled into a language other than that of the original. Because distribution of fan-subtitled content is a violation of copyright laws in most countries, the ethical implications of producing, distributing, or watching fansubs are topics of much controversy. Fansubs originated during the explosion of anime production during the 1980s in Japan. Relatively few titles were licensed for distribution in foreign countries. This made it difficult for anime fans to obtain new titles. Some fans, generally those with some Japanese language experience, began producing amateur subtitled copies of new anime programs so that they could share them with their fellow fans who did not understand Japanese. The first distribution media of fansubbed material was VHS tapes. Such copies were notoriously low quality, time consuming to make, expensive to produce,(Over US$4000 in 1986) and difficult to find. A limited number of copies were made and then mailed out or distributed at local anime clubs. Fans could purchase fansubs at a modest cost or could contact clubs who ... More about Fansub

Freitag, 12. Dezember 2008

Kudzu

Kudzu (クズ or 葛, Kuzu), Pueraria lobata (syn. P. montana, P. thunbergiana), (sometimes known as foot a night vine, mile a minute vine, Gat Gun, Ge Gan and The vine that ate the South) is one of about 20 species in the genus Pueraria in the pea family Fabaceae, subfamily Faboideae. It is native to southern Japan and southeast China in eastern Asia. The name comes from the Japanese word for this plant, kuzu. The other species of Pueraria occur in southeast Asia, further south. Kudzu is a climbing, woody or semi-woody, perennial vine capable of reaching heights of 20–30 m (66-98 ft) in trees, but also scrambles extensively over lower vegetation. The leaves are deciduous, alternate and compound, with a petiole (leaf stem) 10–20 cm (4–8 in) long and three broad leaflets 14–18 cm (6–7 in) long and 10 cm (4 in) broad. The leaflets may be entire or deeply 2–3 lobed, and are pubescent underneath with hairy margins. The flowers are borne in long panicles 10–25 cm (about 4–10 in) long with about 30–80 individual blooms at nodes on the stems (see image). Each flower is about 1–1.5 cm (about 0.4–0.6 in) long, purple, and highly fragrant. The flowers are copious nectar producers and are visited ... More about Kudzu

Isis

Isis was a goddess in Ancient Egyptian religious beliefs, whose worship spread throughout the Greco-Roman world. She was worshipped as the ideal mother and wife, patron of nature and magic; friend of slaves, sinners, artisans, the downtrodden, as well as listening to the prayers of the wealthy, maidens, aristocrats and rulers. Shortly after 2,500 B.C., during the fifth dynasty, the first written records concerning the worship of Isis appear. The Romans would spread her worship to the farthest reaches of their empire through cultural contact with the Egyptians, and particularly after Egypt was annexed to the Roman state in 30 B.C. This followed the invasion of Egypt by Alexander the Great and a Greek occupation for three hundred years beginning in 330 B.C. Although by differing degrees, the Greeks and the Romans adopted deities from the Egyptian pantheon and often interpreted some of their own gods as having a parallel with some of the Egyptian deities. This had the effect of giving Roman and Greek deities an earlier history —and could serve to imply a longer history for themselves. Many of the Egyptian deities were merged and renamed with those of the Greeks and Romans, but a few ... More about Isis

Yoga

Yoga (Sanskrit: योग, IAST: yóga, IPA: [joːgə]) refers to traditional physical and mental disciplines originating in India; to the goal achieved by those disciplines; and to one of the six orthodox (āstika) schools of Hindu philosophy. Major branches of yoga include Raja Yoga, Karma Yoga, Jnana Yoga, Bhakti Yoga, and Hatha Yoga. Raja Yoga, compiled in the Yoga Sutras of Patanjali, and known simply as yoga in the context of Hindu philosophy, is part of the Samkhya tradition. Many other Hindu texts discuss aspects of yoga, including the Vedas, Upanishads, the Bhagavad Gita, the Hatha Yoga Pradipika, the Shiva Samhita and various Tantras. The Sanskrit word yoga has many meanings, and is derived from the Sanskrit root yuj, meaning "to control", "to yoke" or "to unite". Translations include "joining", "uniting", "union", "conjunction", and "means". Outside India, the term yoga is typically associated with Hatha Yoga and its asanas (postures) or as a form of exercise. A practitioner of Yoga is called a Yogi (gender neutral) or Yogini (feminine form). While the most ancient mystic practices are vaguely hinted at in the Vedas, the ascetic practices (tapas) are referenced in the Brāhmaṇas ... More about Yoga

Donnerstag, 11. Dezember 2008

Syracuse

Syracuse (Italian: Siracusa, Sicilian: Sarausa, Ancient Greek: Συράκουσαι – transliterated: Syrakousai) is a historic city in southern Italy, the capital of the province of Syracuse. The city is noted for its rich Greek history, culture, amphitheatres, architecture and association to Archimedes, playing an important role in ancient times as one of the top powers of the Mediterranean world; it is over 2,700 years old. Syracuse is located in the south-east corner of the island of Sicily, right by the Gulf of Syracuse next to the Ionian Sea. The city was founded by Ancient Greek Corinthians and became a very powerful city-state. Syracuse was allied with Sparta and Corinth, exerting influence over the entire Magna Grecia area of which it was the most important city. Once described by Cicero as "the greatest Greek city and the most beautiful of them all", it later became part of the Roman Republic and Byzantine Empire. After this Palermo overtook it in importance, as the capital of the Kingdom of Sicily. Eventually the kingdom would be united with the Kingdom of Naples to form the Two Sicilies until the Italian unification of 1860. In the modern day, the city is listed by UNESCO as a ... More about Syracuse

Chiffchaff

The Common Chiffchaff or simply Chiffchaff, Phylloscopus collybita, is a common and widespread leaf warbler, named for its distinctive onomatopoeic song, which breeds in open woodlands throughout northern and temperate Europe and Asia. It is a migratory passerine which winters in southern and western Europe, southern Asia and north Africa. Greenish-brown above and off-white below, it is named for its simple chiff-chaff song. It has a number of subspecies, some of which are now treated as full species. The female builds a domed nest on or near the ground, and assumes most of the responsibility for brooding and feeding the chicks, whilst the male has little involvement in nesting, but defends his territory against rivals, and attacks potential predators. A small insectivorous bird, it is subject to predation by mammals, such as cats and mustelids, and birds, particularly hawks of the genus Accipiter. It may also acquire external or internal parasites. Its large range and population mean that its status is secure, although one subspecies is probably extinct. The British naturalist Gilbert White was one of the first people to separate the similar-looking Chiffchaff, Willow Warbler and ... More about Chiffchaff

Anthropology

Anthropology (/ˌænθɹəˈpɒlədʒi/, from Greek ἄνθρωπος, anthrōpos, "human"; -λογία, -logia) is the study of humanity. Anthropology has origins in the natural sciences, and the humanities. Ethnography is both one of its primary methods and the text that is written as a result of the practice of anthropology and its elements. Since the work of Franz Boas and Bronisław Malinowski in the late 19th and early 20th centuries, anthropology has been distinguished from other social science disciplines by its emphasis on in-depth examination of context, cross-cultural comparisons (socio-cultural anthropology is by nature a comparative discipline), and the importance it places on long-term, experiential immersion in the area of research, often known as participant-observation. Cultural anthropology in particular has emphasized cultural relativity and the use of findings to frame cultural critiques. This has been particularly prominent in the United States, from Boas's arguments against 19th-century racial ideology, through Margaret Mead's advocacy for gender equality and sexual liberation, to current criticisms of post-colonial oppression and promotion of multiculturalism. The anthropologist Eric ... More about Anthropology

Dienstag, 9. Dezember 2008

Upwelling

An Upwelling is an oceanographic phenomenon that involves wind-driven motion of dense, cooler, and usually nutrient-rich water towards the ocean surface, replacing the warmer, usually nutrient-depleted surface water. There are at least five types of upwelling: coastal upwelling, large-scale wind-driven upwelling in the ocean interior, upwelling associated with eddies, topographically-associated upwelling, and broad-diffusive upwelling in the ocean interior. Coastal upwelling is the best known type of upwelling, and the most closely related to human activities as it supports some of the most productive fisheries in the world, like small pelagics (sardines, anchovies, etc.). Deep waters are rich in nutrients which include nitrate and phosphate, themselves the result of decomposition of sinking organic matter (dead/detrital plankton) from surface waters. When brought to the surface, these nutrients are utilized by phytoplankton, along with dissolved CO2 (carbon dioxide) and light energy from the sun, to produce organic compounds, through the process of photosynthesis. Upwelling regions therefore result in very high levels of primary production (the amount of carbon fixed by ... More about Upwelling

Wycinanki

Wycinanki (vee-chee-non-kee) is a Polish version of the art form of papercutting. Wycinanki in Poland originated with sheepherders cutting designs out of tree bark and leather. Paper wycinanki dates from the early to mid 19th century. Colorful wycinanki were pasted on furniture or roof beams as decoration, hung in windows, and given as gifts. Wycinanki vary by region. For example, wycinanki created in the Kurpie region are typically all one color, while wycinanki from the Łowicz region are multi-colored. Techniques include cutting, clipping, punching, tearing and carving of paper as well as nalepianki in which multiple layers are glued together. Subject matter includes peacocks, roosters and other birds, circular or star-shaped medallions (gwiazdy), flowers, and decorative scenes depicting particular yearly events such as Easter, Christmas, and so on. In some towns and villages competitions evolved to create the most beautiful wycinanki. Traditionally done as relaxation in rural areas of Poland, the techniques were passed down from generation to generation, with new themes and ideas developing as the papercuttings became more detailed and intricate. ... More about Wycinanki

Durif

Durif is a variety of red wine grape primarily grown in California, Australia, France, and Israel. Recently, wineries located in Washington's Yakima River Valley, Maryland, Arizona, West Virginia, Chile, Mexico's Baja Peninsula, and Ontario's Niagara Peninsula have also produced wines from Durif grapes. It is the main grape known in the U.S. and Israel as Petite Sirah, with over 90% of the California plantings labeled "Petite Sirah" being Durif grapes; the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) recognizes "Durif" and "Petite Sirah" as interchangeable synonyms referring to the same grape. It produces tannic wines with a spicy, plummy flavour. The grape originated as a cross of Syrah pollen germinating a Peloursin plant. On some occasions, Peloursin and Syrah vines may be called Petite Sirah, usually because the varieties are extremely difficult to distinguish in old age. The grape is named after François Durif, a botanist at the University of Montpellier. It was in a Peloursin vineyard near the university that he discovered the unique vine that he named for himself in 1880. As a conclusion of DNA fingerprinting at the University of California, Davis in 1997, ... More about Durif

Tutankhamun

Tutankhamun (alternately spelled with Tutenkh-, -amen, -amon), Egyptian twt-ˁnḫ-ı͗mn; tVwa:t-ʕa:nəx-ʔaˡma:n (1341 BC – 1323 BC) was an Egyptian Pharaoh of the Eighteenth dynasty (ruled 1333 BC – 1324 BC in the conventional chronology), during the period of Egyptian history known as the New Kingdom. His original name, Tutankhaten, means "Living Image of Aten", while Tutankhamun means "Living Image of Amun". Often the name Tutankhamun was written Amen-tut-ankh, meaning "living image of Amun", due to scribal custom which most often placed the divine name at the beginning of the phrase in order to honor the divine being. He is possibly also the Nibhurrereya of the Amarna letters. He was likely the eighteenth dynasty king 'Rathotis', who according to Manetho, an ancient historian, had reigned for nine years - a figure which conforms with Flavius Josephus' version of Manetho's Epitome. The 1922 discovery by Howard Carter of Tutankhamun's intact tomb received worldwide press coverage and sparked a renewed public interest in ancient Egypt, for which Tutankhamun's burial mask remains the popular face. Tutankhamun was eight or nine years old when he became pharaoh, and reigned for ... More about Tutankhamun

Montag, 8. Dezember 2008

Hexadecimal

In mathematics and computer science, hexadecimal (also base-16, hexa, or hex) is a numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or a through f) to represent values ten to fifteen. Its primary use is as a human friendly representation of binary coded values, so it is often used in digital electronics and computer engineering. Since each hexadecimal digit represents four binary digits (bits)—also called a nibble—it is a compact and easily translated shorthand to express values in base two. In digital computing, hexadecimal is primarily used to represent bytes. Attempts to represent the 256 possible byte values by other means have led to problems. Directly representing each possible byte value with a single character representation runs into unprintable control characters in the ASCII character set. Even if a standard set of printable characters were devised for every byte value, neither users nor input hardware are equipped to handle 256 unique characters. Most hex editing software displays each byte as a single character, but unprintable characters are usually ... More about Hexadecimal

Zacharias

In the Bible, Zechariah (Ζαχαρίας in Greek, Zacharias in KJV, and Zachary in the Douay-Rheims Bible), was the father of John the Baptist, and a relative by marriage of Jesus. According to the Gospel of Luke, Zechariah was a Jewish Priest and Pharisee of the line of Abijah, during the reign of King Herod the Great, and husband of Elizabeth, a woman from the priestly family of Aaron. The parentage of John the Baptist is not recorded in the other Gospels. The evangelist states that both the parents were righteous before God, since they were blameless in observing the commandments and ordinances of the Lord. When the events related in Luke commenced, their marriage was still childless, because Elizabeth was barren and, like her husband, was advanced in years (Luke 1:5-7). The duties at the temple in Jerusalem alternated between each of the families that had descended from those appointed by King David (1 Chronicles 23:1-19). The offering of incense was one of the most solemn parts of the daily worship and, owing to the large number of eligible priests, no priest could hope to perform the task more than once during his lifetime. Luke states that during the week when it was the duty of ... More about Zacharias

Nymph

In Greek mythology, a nymph is any member of a large class of mythological entities in human female form. They were typically associated with a particular location or landform. Others were part of the retinue of a god, such as Dionysus, Hermes, or Pan, or a goddess, generally Artemis. Nymphs were the frequent target of satyrs. Nymphs live in mountains and groves, by springs and rivers, and in valleys and cool grottoes. They are frequently associated with the superior divinities: the huntress Artemis; the prophetic Apollo; the reveller and god of wine, Dionysus; and rustic gods such as Pan and Hermes. The symbolic marriage of a nymph and a patriarch, often the eponym of a people, is repeated endlessly in Greek origin myths; their union lent authority to the archaic king and his line. "The idea that rivers are gods and springs divine nymphs," Walter Burkert remarks (Burkert III.3.3) "is deeply rooted not only in poetry but in belief and ritual; the worship of these deities is limited only by the fact that they are inseparably identified with a specific locality." Nymphs are personifications of the creative and fostering activities of nature, most often identified with the life-giving ... More about Nymph

Organelle

In cell biology, an organelle (pronunciation: /ɔː(r)gəˡnɛl/) is a specialized subunit within a cell that has a specific function, and is usually separapely enclosed within its own lipid membrane. The name organelle comes from the idea that these structures are to cells what an organ is to the body (hence the name organelle, the suffix -elle being a diminutive). Organelles are identified by microscopy, and can also be purified by cell fractionation. There are many types of organelles, particularly in the eukaryotic cells of higher organisms. Prokaryotes were once thought not to have organelles, but some examples have now been identified. In biology, an organ is defined as a confined functional unit within an organism. The analogy of bodily organs to microscopic cellular substructures is obvious, as from even early works, authors of respective textbooks rarely elaborate on the distinction between the two. Credited as the first to use a diminutive of organ (i.e. little organ) for cellular structures was German zoologist Karl August Möbius (1884), who used the term "organula" (plural form of organulum, the diminutive of latin organum). From the context, it is clear that he referred to ... More about Organelle

Sonntag, 7. Dezember 2008

Albert Einstein

Albert Einstein (German: IPA: [ˈalbɐt ˈaɪ̯nʃtaɪ̯n] (Audio file) (help·info); English: IPA: /ˈælbɝt (-ət) ˈaɪnstaɪn/) (14 March 1879 – 18 April 1955) was a German-born theoretical physicist. He is best known for his theory of relativity and specifically mass–energy equivalence, expressed by the equation E = mc. Einstein received the 1921 Nobel Prize in Physics "for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect." Einstein's many contributions to physics include his special theory of relativity, which reconciled mechanics with electromagnetism, and his general theory of relativity, which was intended to extend the principle of relativity to non-uniform motion and to provide a new theory of gravitation. His other contributions include advances in the fields of relativistic cosmology, capillary action, critical opalescence, classical problems of statistical mechanics and their application to quantum theory, an explanation of the Brownian movement of molecules, atomic transition probabilities, the quantum theory of a monatomic gas, thermal properties of light with low radiation density (which laid the foundation for the ... More about Albert Einstein

Dodo

The Dodo is a fictional character appearing in Chapters 2 and 3 of the book Alice's Adventures in Wonderland by Lewis Carroll (Charles Lutwidge Dodgson). The Dodo is a caricature of the author. A popular belief is that Dodgson chose the particular animal to represent himself because of his stammer; in that when saying his last name, it would frequently come out as "Do-do-dodgson." There however exists no evidence to support the claim and it is doubtful given what is known of the nature of his hesitation. In this passage Lewis Carroll incorporated references to everyone present on the original boating expedition of July 4, 1862 during which Alice's Adventures were first told, with Alice as herself, and the others represented by birds: the Lory was Lorina Liddell, the Eaglet was Edith Liddell, the Dodo was Dodgson, and the Duck was Rev. Robinson Duckworth. In order to get dry after a swim, the Dodo proposes that everyone run a Caucus race — where the participants run in patterns of any shape, starting and leaving off whenever they like, so that everyone wins. At the end of the race, Alice distributes comfits from her pocket to all as prizes. However this leaves no prize for herself.... More about Dodo

Sydney

Sydney (pronounced /ˈsɪdniː/) is the most populous city in Australia, with a metropolitan area population of approximately 4.28 million (2006 estimate). It is the state capital of New South Wales, and was the site of the first British colony in Australia. It was established in 1788 at Sydney Cove by Arthur Phillip, leader of the First Fleet from Britain. A resident of the city is referred to as a Sydneysider. Sydney is situated on Australia's south-east coast. The city is built around Port Jackson, which includes Sydney Harbour, leading to the city's nickname, "the Harbour City". It is noted for the Sydney Opera House and the Harbour Bridge, and its beaches. The metropolitan area is surrounded by national parks, and contains many bays, rivers and inlets. It is listed as a beta world city by the Loughborough University group's 1999 inventory. The city has hosted international sporting, political and cultural events, including the 1938 British Empire Games, 2000 Summer Olympics and the 2003 Rugby World Cup. In September 2007, the city hosted the leaders of the 21 APEC economies for APEC Australia 2007, and in July 2008 hosted World Youth Day 2008. The main airport serving Sydney is…

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Bhuj

Bhuj (ભુજ) is a city and a municipality in Kachchh district in the state of Gujarat, India. It was established by Rao Hamirji in 1510 and was made the state capital by Rao Khengarji I in 1549. Presently, it is the district headquarter of the Kachchh ditrict, the second largest district in India. Bhuj is home to one of the first Swaminarayan Sampraday Temples which was built on Vikram Savant Vaisakha Sud 5th, 1879 (approx. 1822 in the Gregorian calendar). In January 2001, the city was struck by a major earthquake which caused a great deal of damage to the city. The total population of Bhuj was 136,429 in the year 2000, which consisted of 71,056 males and 65,373 females. The total number of houses were 27,992. Bhuj has an average elevation of 110 metres (360 feet). On the eastern side of the town is a hill known as Bhujiyo that separates Bhuj and Madhapar village. It has one big lake named Hamirsar and several small lakes. The old town was surrounded by the fort, which had five major gates and one small gate known as "bari" (which means window). Much of the fort wall has fallen down due to recurring earth-quakes in the region. Bhuj is connected to Ahmedabad, Mumbai, Delhi and other

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Samstag, 6. Dezember 2008

Delphi

Delphi (Greek Δελφοί, [ðe̞lˈfi]) (pronounce and dialectal forms ) is an archaeological site and a modern town in Greece on the south-western spur of Mount Parnassus in the valley of Phocis. Delphi was the site of the Delphic oracle, the most important oracle in the classical Greek world, and it was a major site for the worship of the god Apollo. His sacred precinct in Delphi was a panhellenic sanctuary, where every four years athletes from all over the Greek world competed in the Pythian Games, one of the four panhellenic (or stephanitic) games, precursors to the Modern Olympics. Delphi was revered throughout the Greek world as the site of the omphalos stone, the centre of the earth and the universe. In the inner hestia ("hearth") of the Temple of Apollo, an eternal flame burned. After the battle of Plataea, the Greek cities extinguished their fires and brought new fire from the hearth of Greece, at Delphi; in the foundation stories of several Greek colonies, the founding colonists were first dedicated at Delphi.

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Autism

Autism is a brain development disorder that is characterized by impaired social interaction and communication, and restricted and repetitive behavior, all starting before a child is three years old. This set of signs distinguishes autism from milder autism spectrum disorders (ASD) such as pervasive developmental disorder not otherwise specified (PDD-NOS). Autism has a strong genetic basis, although the genetics of autism are complex and it is unclear whether ASD is explained more by multigene interactions or by rare mutations. In rare cases, autism is strongly associated with agents that cause birth defects. Other proposed causes, such as childhood vaccines, are controversial; the vaccine hypotheses lack convincing scientific evidence. Most recent reviews estimate a prevalence of one to two cases per 1,000 people for autism, and about six per 1,000 for ASD, with ASD averaging a 4.3:1 male-to-female ratio. The number of people known to have autism has increased dramatically since the 1980s, at least partly as a result of changes in diagnostic practice; the question of whether actual prevalence has increased is unresolved.

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Ovid

Publius Ovidius Naso (March 20, 43 BC – 17 or 18 AD) was a Roman poet known to the English-speaking world as Ovid who wrote on many topics, including love (he is the medieval magister amoris, "master of love"), abandoned women, and mythological transformations. Traditionally ranked alongside Virgil and Horace as one of the three canonical poets of Latin literature, Ovid was generally considered a great master of the elegiac couplet. His poetry, much imitated during Late Antiquity and the Middle Ages, had a decisive influence on European art and literature for centuries. Elegiac couplets are the meter of most of Ovid's works: the Amores, his two long erotodidactic poems (the Ars Amatoria and Remedia Amoris), his poem on the Roman calendar (the Fasti), the minor work Medicamina Faciei Femineae (on makeup), his fictional letters from mythological heroines (the Heroides or Epistulae Heroidum), and all the works written in his exile (five books of the Tristia, four of the Epistulae ex Ponto, and the long curse-poem Ibis). The two fragments of the lost tragedy Medea are in iambic trimeter and anapests, respectively; the Metamorphoses was written in dactylic hexameter.

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Freitag, 5. Dezember 2008

Ctesiphon

Ctesiphon (Arabic: قطسيفون‎, Persian: تیسفون) was one of the great cities of the Persian Empire, located on the east bank of the Tigris. Ctesiphon was an imperial capital of the Arsacids and of their successors, the Sassanids. Today, the ruins of Ctesiphon lie in Iraq, approximately 35 km south of the city of Baghdad. Ctesiphon is first mentioned in the Book of Ezra of the Old Testament as Kasfia/Casphia (a derivative of the ethnic name, Cas, and a cognate of Caspian and Qazvin). In the 6th century, Ctesiphon was the largest city in the world. The Latin name 'Ctesiphon' or 'Ctesifon' derives from Greek 'T(h)esifon' or 'Et(h)esifon', continuing in later Greek as 'Ktesiphon' (Κτησιφῶν). In Iranian sources of the Sassanid period it is attested in Manichean Parthian, in Sassanid Middle Persian and in Christian Sogdian as Pahlavi tyspwn, continuing in New Persian as 'Tisfun' (تيسفون). In medieval Arabic texts the name is usually 'Taysafun' (طيسفون) or 'Qataysfun' (قطيسفون), in Modern Arabic 'Madain', 'Maden' or 'Al-Mada'in ' (المدائن). "According to Yaqut [...], quoting Hamza, the original form was Tusfun or Tusfun, which was arabicized as Taysafun."

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McCarthyism

McCarthyism is a term describing the intense anti-communist suspicion in the United States in a period that lasted roughly from the late 1940s to the late 1950s. This period is also referred to as the Second Red Scare, and coincided with increased fears about communist influence on American institutions and espionage by Soviet agents. Originally coined to criticize the actions of U.S. Senator Joseph McCarthy, "McCarthyism" later took on a more general meaning, not necessarily referring to the conduct of Joseph McCarthy alone. During this time many thousands of Americans were accused of being Communists or communist sympathizers and became the subject of aggressive investigations and questioning before government or private-industry panels, committees and agencies. The primary targets of such suspicions were government employees, those in the entertainment industry, educators and union activists. Suspicions were often given credence despite inconclusive or questionable evidence, and the level of threat posed by a person's real or supposed leftist associations or beliefs was often greatly exaggerated.

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February

February is the second month of the year in the Julian and Gregorian calendars. It is the shortest month and the only month with fewer than 30 days. The month has 29 days in leap years, when the year number is divisible by four (except for years that are divisible by 100 and not by 400 in the Gregorian calendar). In common years the month has 28 days. See Month lengths. February starts on the same day of the week as both March and November in common years, and August in leap years. Having only 28 days in common years, it is the only month of the calendar that once every six years and twice every 11 years, will have only four full 7-day weeks where the first day of the month starts on a Sunday and the last day ends on a Saturday. This pattern can be observed in 2009 and can be traced back 11 years to 1998, another 11 years back to 1987, and 6 years back to 1981; and so on twice 11 years consecutively and once six years either forward into the future or back into the past, unless the pattern is broken by a skipped leap year, but no leap year has been skipped since 1900 and no others will be skipped until 2100.

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Donnerstag, 4. Dezember 2008

Odissi

Odissi is the classical dance form of Orissa in north-east India. The classic treatise of Indian dance, Natya Shastra, refers to it as Odra-Magadhi. First century BCE bas-reliefs in the hills of Udaygiri (near Bhubaneshwar) testify to its antiquity. It was suppressed under the British raj but has been reconstructed since India gained independence. It is particularly distinguished from other classical Indian dance forms by the importance it places upon the tribhangi (literally: three parts break), the independent movement of head, chest and pelvis, and upon the basic square stance known as chauka. The Odissi tradition existed in three schools; Mahari, Nartaki, and Gotipua. Maharis were Orissan devadasis or temple girls (their name deriving from Maha (great) and ‘Nari’ or ‘Mahri’ (chosen)} particularly those at the temple of Jagganath at Puri. Early Maharis performed mainly nritta (pure dance) and abhinaya (interpretation of poetry) based on mantras & slokas, later Maharis, especially, performed dance sequences based on the lyrics of Jayadev's Gita Govinda.

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Ferret

The ferret is a domestic mammal of the type Mustela putorius furo. Ferrets are sexually dimorphic predators with males being substantially larger than females. They typically have brown, black, white, or mixed fur, have an average length of approximately 20 inches (51 cm) including a 5 inch (13 cm) tail, weigh about 1.5 - 4 pounds (0.8 - 2 kg), and have a natural lifespan of 7 to 10 years. Several other small, elongated carnivorous mammals belonging to the family Mustelidae (weasels) also have the word "ferret" in their common names, including an endangered species, the Black-footed Ferret. The ferret is a very close relative of the polecat, but it is as yet unclear whether it is a domesticated form of the European Polecat, the Steppe Polecat, or some hybrid of the two. The history of the ferret's domestication is uncertain, like that of most other domestic animals. It is very likely that ferrets have been domesticated for at least 2,500 years. They are still for hunting rabbits in some parts of the world today, but increasingly they are being kept simply as pets.

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Ottawa

Ottawa (pronounced /ˈɒtəwə/ or sometimes /ˈɒtəwɑː/) is the capital of Canada and the country's fourth largest municipality. With a metropolitan population estimated at 1,190,982 Ottawa is also the second largest city in the province of Ontario. It is located in the Ottawa Valley in the eastern portion of the province of Ontario. Ottawa lies on the banks of the Ottawa River, a major waterway that forms the boundary between Ontario and Quebec. There is no federal capital district in Canada. Ottawa is a municipality within the Province of Ontario. Although it does not constitute a separate administrative district, Ottawa is part of the federally designated National Capital Region, which includes the neighbouring Quebec municipality of Gatineau. As with other national capitals, the word "Ottawa" is also used to refer by metonymy to the country's federal government, especially as opposed to provincial or municipal authorities. Ottawa is governed by a 24 member City Council. The members of this council are elected by the residents of Ottawa. Each councillor represents one ward (sub region) within Ottawa. The mayor however represents Ottawa as a whole.

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Mittwoch, 3. Dezember 2008

Felsic

Felsic is a term used in geology to refer to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium. The term combines the words "feldspar" and "silica." Felsic minerals are usually light in color and have specific gravities less than 3. Common felsic minerals include quartz, muscovite, orthoclase, and the sodium-rich plagioclase feldspars. The most common felsic rock is granite. On the opposite side of the rock spectrum are the iron and magnesium-rich mafic and ultramafic minerals and rocks. In modern usage, the term acid rock, although sometimes used as a synonym, refers to a high silica content (greater than 63% SiO2 by weight) volcanic rock such as rhyolite. The term was used more broadly in older geologic literature. It is considered archaic as the terms acidic and basic rock were based on an incorrect idea dating from the 1800s that silicic acid was the chief form of silicon occurring in rocks.

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Ovary

An ovary is an ovum-producing reproductive organ found in female organisms. It is often found in pairs as part of the vertebrate female reproductive system. Ovaries in females are homologous to testes in males. The term gonads refers to the ovaries in females and testes in males. Ovaries are oval shaped and, in the human, measure approximately 3 cm x 1.5 cm x 1.5 cm. The ovary (for a given side) is located in the lateral wall of the pelvis in a region called the ovarian fossa. The fossa usually lies beneath the external iliac artery and in front of the ureter and the internal iliac artery. Each ovary is then attached to the Fimbre of the Fallopian Tube. Usually each ovary takes turns releasing eggs every month; however, if there was a case where one ovary was absent or dysfunctional then the other ovary would continue providing eggs to be released. In the human the paired ovaries lie within the pelvic cavity, on either side of the uterus, to which they are attached via a fibrous cord called the ovarian ligament. The ovaries are uncovered in the peritoneal cavity but are tethered to the body wall via the suspensory ligament of the ovary.

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Afterimage

An afterimage or ghost image is an optical illusion that refers to an image continuing to appear in one's vision after the exposure to the original image has ceased. One of the most common afterimages is the bright glow that seems to float before one's eyes after staring at a light bulb or a headlight for a few seconds. The phenomenon of afterimages may be closely related to persistence of vision, which allows a rapid series of pictures to portray motion, which is the basis of animation and cinema. Afterimages come in two forms, negative (inverted) and positive (retaining original color). The process behind positive afterimages is unknown, though thought to be related to neural adaptation. On the other hand, negative afterimages are a retinal phenomenon and are well understood. Negative afterimages are caused when the eye's photoreceptors, primarily those known as cone cells, adapt from the over stimulation and lose sensitivity. Normally the eye deals with this problem by rapidly moving the eye small amounts (see: microsaccade), the motion later being "filtered out" so it is not noticeable.

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Dienstag, 2. Dezember 2008

Syndicalism

Syndicalism is a type of movement which aims to degrade capitalist societies through action by the working class on the industrial front. For syndicalists, labor unions are the potential means both of overcoming capitalism and of running society in the interests of the majority. Industry and government in a syndicalist society would be run by labour union federations. This emphasis on industrial organization was a distinguishing feature of syndicalism when it began to be identified as a distinct current at the beginning of the 20th century. Most socialist organisations of that period emphasised the importance of political action through party organizations as a means of bringing about socialism. Although all syndicalists emphasize industrial organization, not all reject political action altogether. For example, De Leonists and some other Industrial Unionists advocate parallel organisation both politically and industrially. Syndicalisme is a French word meaning "trade unionism". This milder version of syndicalism was overshadowed by revolutionary anarcho-syndicalism in the early 20th century.

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MCPA

MCPA or 2-methyl-4-chlorophenoxyacetic acid is a powerful, selective, widely-used phenoxy herbicide. The pure compound is a brown-colored powder. Synthesis of MCPA was first reported by Synerholme and Zimmerman in 1945 and by Templeman and Foster in 1946. Templeman and Foster were searching for a compounds with similar or greater selective activity than 1-naphthaleneacetic acid in inhibiting the growth of weeds while not adversely affecting the growth of cereal grains. They synthesized MCPA from the corresponding phenol by exposing it to chloroacetic acid and dilute base in a straightforward substitution reaction: Because it is inexpensive, MCPA is used in various chemical applications. Its carboxylic acid group allows the formation of conjugated complexes with metals (see below). The acid functionality makes MCPA a versatile synthetic intermediate for more complex derivatives. MCPA is used as an herbicide, generally as its salt or esterified forms.

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Pkunk

The Pkunk are a fictional race of beings featured in the Star Control computer game series, introduced in the second game. The Pkunk are a race of toucan or dodo like bird creatures that are an offshoot of the Yehat. They ally with the protagonist in Star Control II as soon as he meets them. Psychologically the Pkunk resemble a stereotypical phony psychic, constantly agreeing with anything mystical the player says and basing all their decisions on universal harmony and similar grand sounding concepts. However, the Pkunk really are powerful psychics who are able to provide various hints to the player, even going so far as actual clairvoyance. Perhaps the Pkunk's greatest achievement was to convince the Yehat to turn away from their violent honour based culture, in the Yehat's own words "we only thought we were being happy birds of prey" The Pkunk believe that their psychotic neighbours, the Ilwrath, were initially wonderful and peaceful beings who became a tiny smidgen too good and wrapped all the way around to evil. To avoid such a fate, the Pkunk, as well as being harmonious and pacifistic, always make sure to be slightly annoying to all they meet.

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Montag, 1. Dezember 2008

Cretaceous

The Cretaceous (pronounced /kriːˈteɪʃəs/, usually abbreviated 'K' for its German translation "Kreide") is a geologic period and system, reaching from the end of the Jurassic Period, (145.5 ± 4 million years ago (Ma) to the beginning of the Paleocene Period, 65.5 ± 0.3 Ma. It is the youngest geological period of the Mesozoic, and at 80 million years long, the longest period of the Phanerozoic. The end of the Cretaceous defines the boundary between the Mesozoic and Cenozoic eras. The Cretaceous (from Latin creta meaning 'chalk' ) as a separate period was first defined by a Belgian geologist Jean d'Omalius d'Halloy in 1822, using strata in the Paris Basin and named for the extensive beds of chalk (calcium carbonate deposited by the shells of marine invertebrates, principally coccoliths), found in the upper Cretaceous of continental Europe and the British Isles (including the White Cliffs of Dover). As with other older geologic periods, the rock beds that define the Cretaceous are well identified but the exact dates of the period's start and end are uncertain by a few million years. No great extinction or burst of diversity separated the Cretaceous from the Jurassic.

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Swastika

The swastika (from Sanskrit: svástika स्वस्तिक ) is an equilateral cross with its arms bent at right angles, in either right-facing (卐) form or its mirrored left-facing (卍) form. The swastika can also be drawn as a traditional swastika, but with a second 90° bend in each arm. Archaeological evidence of swastika-shaped ornaments dates from the Neolithic period. An ancient symbol, it occurs mainly in the cultures that are in modern day India and the surrounding area, sometimes as a geometrical motif (as in the Roman Republic and Empire) and sometimes as a religious symbol. It was long widely used in major world religions such as Hinduism, Buddhism and Jainism. Though once commonly used all over much of the world without stigma, because of its iconic usage in Nazi Germany, the symbol has become controversial in the Western world. The word swastika is derived from the Sanskrit word svastik (in Devanagari, स्वस्तिक), meaning any lucky or auspicious object, and in particular a mark made on persons and things to denote good luck.

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Ewhurst

Ewhurst is a small village in the English county of Surrey. Ewhurst is located between Cranleigh (two miles away) and Shere which is around five miles in the other direction. Ewhurst has many well-known legends as members of the village, such as Eric Clapton, who is known to play at the Church of England church in Ewhurst. It also houses other stars as Kenney Jones of the Who and Jim Davidson. No knowledge exists of when cricket was first played on Ewhurst Green, but an article in an old Surrey magazine of 1947 said that cricket had been played on The Green for at least 100 years. This must mean that it is at least 165 years old. Also the cricket historian, Tom Bing, who lived locally said that he had found evidence that cricket had been played between the villages of Ewhurst and Rudgwick as far back as the late 18th century. Local families such as the Wellers, Warringtons, Barlows and Osgoods have served the club with distinction throughout the years. A minute book held at the Guildford Library relates how cricket was played in the village from the turn of the 20th century up to World War I.

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