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Léon Fredericq
Léon Fredericq (24 August 1851 – 2 September 1935) was a Belgian physiologist. He conducted pioneering experiments on blood physiology, and discovered the copper-based hemocyanin of octopuses. He also examined gas-exchange, the working of the heart, and the transport of carbon dioxide and oxygen by blood. He served as a professor at the University of Liège from 1879. Life and work Fredericq was born in Ghent where his father César Fredericq was a physician and his mother Mathilde Huet headed a boarding school for girls. He was educated in Ghent before joining the University of Ghent in 1868 to study science. He received a doctorate in 1871 and became a preparator in physiology at the faculty of medicine. He received an MD in 1875 and went to France studying under Louis-Antoine Ranvier, Georges Pouchet, Wilhelm Waldeyer, Ernst Tiegel, Felix Hoppe-Seyler and others. He also spent some time studying the nerve physiology of sea urchins at Roscoff under Henri de Lacaze-Duthiers. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Léon Frédéricq
Leon, Léon (French) or León (Spanish) may refer to: Places Europe * León, Spain, capital city of the Province of León * Province of León, Spain * Kingdom of León, an independent state in the Iberian Peninsula from 910 to 1230 and again from 1296 to 1301 * León (historical region), composed of the Spanish provinces León, Salamanca, and Zamora * Viscounty of Léon, a feudal state in France during the 11th to 13th centuries * Saint-Pol-de-Léon, a commune in Brittany, France * Léon, Landes, a commune in Aquitaine, France * Isla de León, a Spanish island * Leon (Souda Bay), an islet in Souda Bay, Chania, on the island of Crete North America * León, Guanajuato, Mexico, a large city * Leon, California, United States, a ghost town * Leon, Iowa, United States * Leon, Kansas, United States * Leon, New York, United States * Leon, Oklahoma, United States * Leon, Virginia, United States * Leon, West Virginia, United States * Leon, Wisconsin (other), United States, several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Bert
Paul Bert (17 October 1833 – 11 November 1886) was a French zoologist, physiologist and politician. He is sometimes given the sobriquet "Father of Aviation Medicine". Life Bert was born at Auxerre (Yonne). He studied law, earning a doctorate in Paris; then, under the influence of the zoologist Louis Pierre Gratiolet (1815–1865), he took up physiology, becoming one of Claude Bernard's most brilliant students. After graduating at Paris as doctor of medicine in 1863, and doctor of science in 1866, he was appointed professor of physiology successively at Bordeaux (1866) and the Sorbonne (1869). After the "Commune de Paris" (1870) he began to take part in politics as a supporter of Gambetta. In 1874 he was elected to the Assembly, where he sat on the extreme left, and in 1876 to the chamber of deputies. He was one of the most determined enemies of clericalism, and an ardent advocate of "liberating national education from religious sects, while rendering it accessible to every c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1851 Births
Events January–March * January 11 – Hong Xiuquan officially begins the Taiping Rebellion. * January 15 – Christian Female College, modern-day Columbia College, receives its charter from the Missouri General Assembly. * January 23 – The flip of a coin, subsequently named Portland Penny, determines whether a new city in the Oregon Territory is named after Boston, Massachusetts, or Portland, Maine, with Portland winning. * January 28 – Northwestern University is founded in Illinois. * February 1 – ''Brandtaucher'', the oldest surviving submersible craft, sinks during acceptance trials in the German port of Kiel, but the designer, Wilhelm Bauer, and the two crew escape successfully. * February 6 – Black Thursday in Australia: Bushfires sweep across the state of Victoria, burning about a quarter of its area. * February 12 – Edward Hargraves claims to have found gold in Australia. * February 15 – In Boston, Massachusetts, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert I Of Belgium
Albert I (8 April 1875 – 17 February 1934) was King of the Belgians from 23 December 1909 until his death in 1934. Born in Brussels as the fifth child and second son of Prince Philippe, Count of Flanders and Princess Marie of Hohenzollern-Sigmaringen, Albert succeeded his uncle, Leopold II, to the Belgian throne in 1909. He married Elisabeth of Bavaria, with whom he had three children. Albert ruled during an eventful period in the history of Belgium, which included the period of World War I (1914–1918), when most of Belgium was occupied by German forces. Other crucial events of his reign included the adoption of the Treaty of Versailles in June 1919, the ruling of the Belgian Congo as an overseas possession of Belgium along with the League of Nations mandate of Ruanda-Urundi, the reconstruction of Belgium following the war, and the first five years of the Great Depression (1929–1934). Albert died in a mountaineering accident in eastern Belgium in 1934, at the age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri Fredericq
Henri is an Estonian, Finnish, French, German and Luxembourgish form of the masculine given name Henry. People with this given name ; French noblemen :'' See the 'List of rulers named Henry' for Kings of France named Henri.'' * Henri I de Montmorency (1534–1614), Marshal and Constable of France * Henri I, Duke of Nemours (1572–1632), the son of Jacques of Savoy and Anna d'Este * Henri II, Duke of Nemours (1625–1659), the seventh Duc de Nemours * Henri, Count of Harcourt (1601–1666), French nobleman * Henri, Dauphin of Viennois (1296–1349), bishop of Metz * Henri de Gondi (other) * Henri de La Tour d'Auvergne, Duke of Bouillon (1555–1623), member of the powerful House of La Tour d'Auvergne * Henri Emmanuel Boileau, baron de Castelnau (1857–1923), French mountain climber * Henri, Grand Duke of Luxembourg (born 1955), the head of state of Luxembourg * Henri de Massue, Earl of Galway, French Huguenot soldier and diplomat, one of the principal commanders of Batt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walthère Victor Spring
Walthère Victor Spring (6 March 1848 – 17 July 1911) was a Belgian experimental chemist and a professor at the University of Liège who contributed to ideas on carbon dioxide in the atmosphere and the Greenhouse Effect. As a physical chemist he demonstrated the formation of certain compounds such as metal sulphides under high pressure conditions. He also took an interest in the study of the Tyndall effect and examined the cause of the colour of the sky and water. Spring was born in Liège to physician and professor of medicine, Antoine Spring (1814–1872) who was of Bavarian ancestry. He experimented in physics and chemistry but studied classical languages and humanities at the Athenaeum. He failed the examination to enter university but took an interest in practical work. He worked for a while with an arms manufacturer in Liège but was encouraged by the chemist Jean-Servais Stas (1813–1891) to study and he joined the Mining School from where he received a diploma in 1871. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Autotomy
Autotomy (from the Greek language, Greek ''auto-'', "self-" and ''tome'', "severing", wikt:αὐτοτομία, αὐτοτομία) or self-amputation, is the behaviour whereby an animal sheds or discards one or more of its own appendages, usually as a self-preservation, self-defense mechanism to elude a predation, predator's grasp or to distract the predator and thereby allow escape. Some animals have the ability to regeneration (biology), regenerate the lost body part later. Autotomy has multiple evolutionary origins and is thought to have evolved at least nine times independently in animalia. The term was coined in 1883 by Léon Fredericq, Leon Fredericq. Vertebrates Reptiles and amphibians Some lizards, salamanders and tuatara when caught by the tail will shed part of it in attempting to escape. In many species the detached tail will continue to wriggle, creating a deceptive sense of continued struggle, and distracting the predator's attention from the fleeing prey animal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodor Schwann
Theodor Schwann (; 7 December 181011 January 1882) was a German physician and physiologist. His most significant contribution to biology is considered to be the extension of cell theory to animals. Other contributions include the discovery of Schwann cells in the peripheral nervous system, the discovery and study of pepsin, the discovery of the organic nature of yeast, and the invention of the term "metabolism". Early life and education Theodor Schwann was born in Neuss on 7 December 1810 to Leonard Schwann and Elisabeth Rottels. Leonard Schwann was a goldsmith and later a printer. Theodor Schwann studied at the Dreikönigsgymnasium (also known as the Tricoronatum or Three Kings School), a Jesuit school in Cologne. Schwann was a devout Roman Catholic. In Cologne his religious instructor , a priest and novelist, emphasized the individuality of the human soul and the importance of free will. In 1829, Schwann enrolled at the University of Bonn in the premedical curriculum. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henri De Lacaze-Duthiers
Félix Joseph Henri de Lacaze-Duthiers (15 May 1821 – 21 July 1901) was a French biologist, anatomist and zoologist born in Montpezat, Lot-et-Garonne, Montpezat in the department of Lot-et-Garonne. He was a leading authority in the field of malacology. He studied medicine in Paris, and worked at Necker Hospital under Armand Trousseau (1801–1867). Later on, with Jules Haime (1824–1856), he travelled to the Balearic Islands to study marine life. In 1854 he returned to Paris as an assistant to Henri Milne-Edwards (1800–1885), and soon afterwards became a professor of zoology in Université Lille Nord de France, Lille. In 1865 he succeeded Achille Valenciennes (1794–1865) as chair of ''histoire naturelle des mollusques, des vers et des zoophytes'' at the National Museum of Natural History, France, and in 1868 became a professor at the University of Paris. In 1871 he was elected to French Academy of Sciences in the department of anatomy and zoology. Lacaze-Duthiers is remem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemocyanin
Hemocyanins (also spelled haemocyanins and abbreviated Hc) are proteins that transport oxygen throughout the bodies of some invertebrate animals. These metalloproteins contain two copper atoms that reversibly bind a single oxygen molecule (O2). They are second only to hemoglobin in frequency of use as an oxygen transport molecule. Unlike the hemoglobin in red blood cells found in vertebrates, hemocyanins are not confined in blood cells but are instead suspended directly in the hemolymph. Oxygenation causes a color change between the colorless Cu(I) deoxygenated form and the blue Cu(II) oxygenated form. Species distribution Hemocyanin was first discovered in ''Octopus vulgaris'' by Leon Fredericq in 1878. The presence of copper in molluscs was detected even earlier by Bartolomeo Bizio in 1833. Hemocyanins are found in the Mollusca and Arthropoda including cephalopods and crustaceans and utilized by some land arthropods such as the tarantula ''Eurypelma californicum'', the em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felix Hoppe-Seyler
Ernst Felix Immanuel Hoppe-Seyler (''né'' Felix Hoppe; 26 December 1825 – 10 August 1895) was a German physiologist and chemist, and the principal founder of the disciplines of biochemistry and molecular biology. Biography Hoppe-Seyler was born in Freyburg an der Unstrut in the Province of Saxony. He originally trained to be a physician in Halle and Leipzig, and received his medical doctorate from Berlin in 1851. Afterwards, he was an assistant to Rudolf Virchow at the Pathological Institute in Berlin. Hoppe-Seyler preferred scientific research to medicine, and later held positions in anatomy, applied chemistry, and physiological chemistry in Greifswald, Tübingen and Strasbourg. At Strasbourg, he was head of the department of biochemistry, the only such institution in Germany at the time. His work also led to advances in organic chemistry by his students and by immunologist Paul Ehrlich. Among his students and collaborators were Friedrich Miescher (1844–1895) and Nobel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Tiegel
Ernst is both a surname and a given name, the German, Dutch, and Scandinavian form of Ernest. Notable people with the name include: Surname * Adolf Ernst (1832–1899) German botanist known by the author abbreviation "Ernst" * Anton Ernst (1975-) South African Film Producer * Alice Henson Ernst (1880-1980), American writer and historian * Britta Ernst (born 1961), German politician * Cornelia Ernst, German politician * Edzard Ernst, German-British Professor of Complementary Medicine * Emil Ernst, astronomer * Ernie Ernst (1924/25–2013), former District Judge in Walker County, Texas * Eugen Ernst (1864–1954), German politician * Fabian Ernst, German soccer player * Gustav Ernst, Austrian writer * Heinrich Wilhelm Ernst, Moravian violinist and composer * Jim Ernst, Canadian politician * Jimmy Ernst, American painter, son of Max Ernst * Joni Ernst, U.S. Senator from Iowa * K.S. Ernst, American visual poet * Karl Friedrich Paul Ernst, German writer (1866–1933) * Ken Ernst, U.S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_Schwann_(1810-1882)%2C_fondateur_de_la_théorie_cellulaire_(1839)%2C_Institut_de_Zoologie%2C_Liège.jpg "Click for more on -> Theodor Schwann")
