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Abraham Vater
Abraham Vater (9 December 1684 – 18 November 1751) was a German anatomist from Wittenberg. He received his doctorate in philosophy from the University of Wittenberg in 1706, and his medical degree from the University of Leipzig in 1710. Afterwards, he embarked on a scientific trip through Germany, Holland and England. In Amsterdam he met with Frederik Ruysch (1638-1731). He later gained his habilitation in Wittenberg, becoming an associate professor in 1719, a full professor of anatomy in 1732 and a professor of therapy in 1746. Vater is primarily known for his work in anatomy, but he also published works in the fields of chemistry, botany, pharmacology and gynaecology. He was the first to describe the hepatopancreatic ampulla, which is the juncture of the pancreatic duct and the common bile duct, and is now referred to as the ampulla of Vater. In 1719, Vater was the first to notice oval-shaped organs of concentric layers of connective tissue wrapped around nerve endings in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Wittenberg
Martin Luther University of Halle-Wittenberg (german: Martin-Luther-Universität Halle-Wittenberg), also referred to as MLU, is a public, research-oriented university in the cities of Halle and Wittenberg and the largest and oldest university in the German state of Saxony-Anhalt. MLU offers German and international (English) courses leading to academic degrees such as BA, BSc, MA, MSc, doctoral degrees, and Habilitation. The university was created in 1817 through the merger of the University of Wittenberg (founded in 1502) and the University of Halle (founded in 1694). MLU is named after Protestant reformer Martin Luther, who was a professor in Wittenberg. Today, the university campus is located in Halle, while ''Leucorea Foundation'' in Wittenberg serves as MLU's convention centre. Both Halle and Wittenberg are about one hour from Berlin via the Berlin–Halle railway, which offers Intercity-Express (ICE) trains. History University of Wittenberg (''Universität Wittenb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century German Male Writers
The 18th century lasted from January 1, 1701 ( MDCCI) to December 31, 1800 ( MDCCC). During the 18th century, elements of Enlightenment thinking culminated in the American, French, and Haitian Revolutions. During the century, slave trading and human trafficking expanded across the shores of the Atlantic, while declining in Russia, China, and Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in human society and the environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th century may be defined as 1715–1789, denoting the period of time between the death of Louis XIV of France and the start of the French Revolution, with an emphasis on directly interconnected events. To historians who expand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
18th-century Latin-language Writers
The 18th century lasted from January 1, 1701 (Roman numerals, MDCCI) to December 31, 1800 (Roman numerals, MDCCC). During the 18th century, elements of Age of Enlightenment, Enlightenment thinking culminated in the American Revolution, American, French Revolution, French, and Haitian Revolution, Haitian Revolutions. During the century, History of slavery, slave trading and human trafficking expanded across the shores of the Atlantic Ocean, Atlantic, while declining in Russian Empire, Russia, Qing dynasty, China, and Joseon, Korea. Revolutions began to challenge the legitimacy of monarchical and aristocratic power structures, including the structures and beliefs that Proslavery, supported slavery. The Industrial Revolution began during mid-century, leading to radical changes in Society, human society and the Natural environment, environment. Western historians have occasionally defined the 18th century otherwise for the purposes of their work. For example, the "short" 18th cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1751 Deaths
In Britain and its colonies (except Scotland), 1751 only had 282 days due to the British Calendar Act of 1751, which ended the year on 31 December (rather than nearly three months later according to its previous rule). Events January–March * January 1 – As the American colony in Georgia (U.S. state), Georgia prepares the transition from a Trustee Georgia, trustee-operated territory to a Province of Georgia, British colonial province, the prohibition against slavery is lifted by the Trustees for the Establishment of the Colony of Georgia in America, Board of Trustees. At the time, the African-American population of Georgia is about 400 people who have been kept as slaves in violation of the law. By 1790, the slave population increases to over 29,000 and by 1860 to 462,000. * January 7 – The University of Pennsylvania, conceived 12 years earlier by Benjamin Franklin and its other trustees to provide non-denominational higher education "to train young pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1684 Births
Events January–March * January 5 – King Charles II of England gives the title Duke of St Albans to Charles Beauclerk, his illegitimate son by Nell Gwyn. * January 15 (January 5 O.S.) - To demonstrate that the River Thames, frozen solid during the Great Frost that started in December, is safe to walk upon, "a Coach and six horses drove over the Thames for a wager" and within three days "whole streets of Booths are built on the Thames and thousands of people are continually walking thereon." Sir Richard Newdigate, 2nd Baronet, records the events in his diary. * January 26 – Marcantonio Giustinian is elected Doge of Venice. * January – Edmond Halley, Christopher Wren and Robert Hooke have a conversation in which Hooke later claimed not only to have derived the inverse-square law, but also all the laws of planetary motion attributed to Sir Isaac Newton. Hooke's claim is that in a letter to Newton on 6 January 1680, he first stated the inverse-square law. * F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Wikipedia
The German Wikipedia (german: Deutschsprachige Wikipedia) is the German-language edition of Wikipedia, a free and publicly editable online encyclopedia. Founded on March 16, 2001, it is the second-oldest Wikipedia (after the English Wikipedia), and with articles, at present () the -largest edition of Wikipedia by number of articles, behind English Wikipedia and the mostly bot-generated Cebuano Wikipedia.ikipedia-l">Jimmy Wales [Wikipedia-l/nowiki>Alternative language Wikipedias, 16 March 2001List of Wikipedias/Table meta.wikimedia.org, Statistics It has the second-largest number of edits behind the English Wikipedia and over 260,000 disambiguation pages. On November 7, 2011, it became the second edition of Wikipedia, after the English edition, to exceed 100 million page edits. The German Wikipedia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Inventors And Discoverers
---- __NOTOC__ This is a list of German inventors and discoverers. The following list comprises people from Germany or German-speaking Europe, and also people of predominantly German heritage, in alphabetical order of the surname. For the list containing items and ideas invented and/or discovered by Germans, see list of German inventions and discoveries. A * Ernst Abbe: Invented the first refractometer, and many other devices. Donated his shares in the company Carl Zeiss to form Carl-Zeiss-Stiftung, still in existence today. * Franz Carl Achard: Developed a process to produce sugar from sugar beet. Built the first factory for the process in 1802. * Robert Adler: Invented a better television remote control. * Konrad Adenauer: Invented soya sausage (1916; "Kölner Wurst") and, together with Jean and Josef Oebel, oarsewholemeal bread (1917; Kölner Brot). * Georgius Agricola: Named "the father of mineralogy". * Wilhelm Albert: Invented the wire rope 1834. * Kurt Alder: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duodenum
The duodenum is the first section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear, and the terms anterior intestine or proximal intestine may be used instead of duodenum. In mammals the duodenum may be the principal site for iron absorption. The duodenum precedes the jejunum and ileum and is the shortest part of the small intestine. In humans, the duodenum is a hollow jointed tube about 25–38 cm (10–15 inches) long connecting the stomach to the middle part of the small intestine. It begins with the duodenal bulb and ends at the suspensory muscle of duodenum. Duodenum can be divided into four parts: the first (superior), the second (descending), the third (horizontal) and the fourth (ascending) parts. Structure The duodenum is a C-shaped structure lying adjacent to the stomach. It is divided anatomically into four sections. The first part of the duodenu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krause Corpuscle
The bulboid corpuscles (end-bulbs of Krause) are cutaneous receptors in the human body. The end-bulbs of Krause were named after the German anatomist Wilhelm Krause (1833–1910). Function The end-bulbs of Krause were thought to be thermoreceptors, sensing cold temperatures, but their function is unknown. Structure They are minute cylindrical or oval bodies, consisting of a capsule formed by the expansion of the connective-tissue sheath of a medullated fiber, and containing a soft semifluid core in which the axis-cylinder terminates either in a bulbous extremity or in a coiled-up plexiform mass. Location End-bulbs are found in the conjunctiva of the eye (where they are spheroidal in shape in humans, but cylindrical in most other animals), in the mucous membrane of the lips and tongue, and in the epineurium of nerve trunks. They are also found in the penis and the clitoris and have received the name of genital corpuscles; in these situations they have a mulberry-like appearance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruffini Corpuscles
The Bulbous corpuscle or Ruffini ending or Ruffini corpuscle is a slowly adapting mechanoreceptor located in the cutaneous tissue between the dermal papillae and the hypodermis. It is named after Angelo Ruffini Angelo Ruffini (Pretare of Arquata del Tronto; 1864–1929) was an Italian histologist and embryologist. He studied medicine at the University of Bologna, where beginning in 1894 he taught classes in histology. In 1903 he attained the chair of em .... Structure Ruffini corpuscles are enlarged dendritic endings with elongated capsules. Function This spindle-shaped receptor is sensitive to skin stretch, and contributes to the kinesthetic sense of and control of finger position and movement. They are at the highest density around the fingernails where they act in monitoring slippage of objects along the surface of the skin, allowing modulation of grip on an object. Ruffini corpuscles respond to sustained pressure and show very little adaptation. Ruffinian endings are lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meissner's Corpuscle
Tactile corpuscles or Meissner's corpuscles are a type of mechanoreceptor discovered by anatomist Georg Meissner (1829–1905) and Rudolf Wagner. This corpuscle is a type of nerve ending in the skin that is responsible for sensitivity to pressure. In particular, they have their highest sensitivity (lowest threshold) when sensing vibrations between 10 and 50 hertz. They are rapidly adaptive receptors. They are most concentrated in thick hairless skin, especially at the finger pads. Structure Tactile corpuscles are encapsulated myelinated nerve endings, surrounded by Schwann cells. The encapsulation consists of flattened supportive cells arranged as horizontal lamellae surrounded by a connective tissue capsule. The corpuscle is 30–140 μm in length and 40–60 μm in diameter. A single nerve fiber meanders between the lamellae and throughout the corpuscle. Location They are distributed on various areas of the skin, but concentrated in areas especially sensitive to ligh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
