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Robert-Philippe Dollfus
Robert-Philippe Dollfus (20 July 1887 in Paris, France – 19 February 1976 in Paris, France) was a French zoologist and parasitologist. Stunkard, H.W. 1977. In Memoriam Robert-Philippe Dollfus (1887–1976). Journal of Parasitology 63: 706 & 727. Grabda, E. 1977. Robert Ph. Dollfus (1887–1976) Wspomnienie Pośmiertne. ''Wiadomości Parazytologiczne'' 23: 463–465. Career Robert-Philippe Dollfus was born in Paris on July 20, 1887, in a family of Protestant tradition. His father was Gustave Frédéric Dollfus, famous French geologist and malacologist. Very early on, he attended the laboratories of Alfred Giard and that of Alfred Blanchard. As early as 1912, at the age of 25, he established the notion of metacercaria, a stage of the lifecycle of Digenea. In 1914, he was on an oceanographic mission aboard the Research Vessel "Pourquoi Pas?" under the orders of Jean-Baptiste Charcot. During the Second World War, he was a stretcher bearer and auxiliary doctor. Between the wars, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paris
Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. Since the 17th century, Paris has been one of the world's major centres of finance, diplomacy, commerce, fashion, gastronomy, and science. For its leading role in the arts and sciences, as well as its very early system of street lighting, in the 19th century it became known as "the City of Light". Like London, prior to the Second World War, it was also sometimes called the capital of the world. The City of Paris is the centre of the Île-de-France region, or Paris Region, with an estimated population of 12,262,544 in 2019, or about 19% of the population of France, making the region France's primate city. The Paris Region had a GDP of €739 billion ($743 billion) in 2019, which is the highest in Europe. According to the Economist Intelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geologist
A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, although backgrounds in physics, chemistry, biology, and other sciences are also useful. Field research (field work) is an important component of geology, although many subdisciplines incorporate laboratory and digitalized work. Geologists can be classified in a larger group of scientists, called geoscientists. Geologists work in the energy and mining sectors searching for natural resources such as petroleum, natural gas, precious and base metals. They are also in the forefront of preventing and mitigating damage from natural hazards and disasters such as earthquakes, volcanoes, tsunamis and landslides. Their studies are used to warn the general public of the occurrence of these events. Geologists are also important contributors to climate ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parasite210069-fig2 - Hassalstrongylus Dollfusi (Nematoda, Heligmonellidae)
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has characterised parasites as "predators that eat prey in units of less than one". Parasites include single-celled protozoans such as the agents of malaria, sleeping sickness, and amoebic dysentery; animals such as hookworms, lice, mosquitoes, and vampire bats; fungi such as honey fungus and the agents of ringworm; and plants such as mistletoe, dodder, and the broomrapes. There are six major parasitic strategies of exploitation of animal hosts, namely parasitic castration, directly transmitted parasitism (by contact), trophicallytransmitted parasitism (by being eaten), vector-transmitted parasitism, parasitoidism, and micropredation. One major axis of classification concerns invasiveness: an endoparasite lives inside the host's body; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helminths
Parasitic worms, also known as helminths, are large macroparasites; adults can generally be seen with the naked eye. Many are intestinal worms that are soil-transmitted and infect the gastrointestinal tract. Other parasitic worms such as schistosomes reside in blood vessels. Some parasitic worms, including leeches and monogeneans, are ectoparasites thus, they are not classified as helminths, which are endoparasites. Parasitic worms live in and feed in living hosts. They receive nourishment and protection while disrupting their hosts' ability to absorb nutrients. This can cause weakness and disease in the host, and poses a global health and economic problem. Parasitic worms cannot reproduce entirely within their host's body; they have a life cycle that includes some stages that need to take place outside of the host. Helminths are able to survive in their mammalian hosts for many years due to their ability to manipulate the host's immune response by secreting immunomodulatory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société Française De Parasitologie
La Société Française de Parasitologie ( en, "French Society of Parasitology"), often abridged as SFP, was founded in 1962 and is a scientific society devoted to parasitology. It publishes the scientific journal Parasite and organizes prizes and annual meetings. History The Society was created at a meeting hold on April 7, 1962 at the Muséum National d’Histoire Naturelle in Paris, called by Jacques Callot (from Strasbourg), Jean Biguet (from Lille), Alain Chabaud (from Paris), and Claude Dupuis (from Paris). Among the 25 founding members were Lucien Brumpt, Pierre Paul Grassé, Edouard Brygoo, Jean-Marie Doby, Louis Euzet, Hervé Harant and Jean-Antoine Rioux. Publications The Society published from 1981 to 1999 the ''Bulletin de la Société Française de Parasitologie'', now extinct. Since 1994, the Society publishes the scientific journal Parasite. The journal was published as a printed journal from 1994 to 2012 and is an online open-access journal since 2013. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helminthologist
Helminthology is the study of parasitic worms (helminths). The field studies the taxonomy of helminths and their effects on their hosts. The origin of the first compound of the word is the Greek '' ἕλμινς'' - helmins, meaning "worm". In the 18th and early 19th century there was wave of publications on helminthology; this period has been described as the science's "Golden Era". During that period the authors Félix Dujardin, William Blaxland Benham, Peter Simon Pallas, Marcus Elieser Bloch, Otto Friedrich Müller, , Biodiversity Heritage Library Johann Goeze, Friedrich Zenker, Charles Wardell Stiles, Carl Asmund Rudolphi, Otto Friedrich Bernhard von Linstow and Johann Gottfried Bremser started systematic scientific studies of the subject. The Japanese parasitologist Satyu Yamaguti was one of the most active helminthologists of the 20th century; he wrote the six-volume ''Systema Helminthum''.Anonymous. 1983. Special edition: A list of papers by Dr. Satyu Yamaguti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société Zoologique De France
La Société zoologique de France ( en, "Zoological Society of France"), founded in 1876 by Aimé Bouvier, is a scientific society devoted to Zoology. It publishes a bulletin and organises the Prix Gadeau de Kerville de la Société zoologique de France. List of presidents * 1876–1877: Jules Vian * 1878: Félix Pierre Jousseaume * 1879: Edmond Perrier * 1880: Jules Vian * 1881: Fernand Lataste * 1882: Eugène Simon * 1883: Jules Künckel d'Herculais * 1884: Maurice Chaper * 1885: Jean Pierre Mégnin * 1886: Paul Henri Fischer * 1887: Adrien Certes * 1888: Jules Jullien * 1889: Gustave Cotteau * 1890: Jules de Guerne * 1891: Louis-Joseph Alcide Railliet * 1892: Philippe Dautzenberg * 1893: Émile Oustalet * 1894: Lionel Faurot * 1895: Léon Vaillant * 1896: Louis Eugène Bouvier * 1897: Romain Moniez * 1898: Henri Filhol * 1899: Charles Janet * 1900: Yves Delage * 1901: Édouard Louis Trouessart * 1902: Arthur René Jean Baptiste Bavay * 1903: Jules Richard * 1904: Ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cestodes
Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the species—and the best-known—are those in the subclass Eucestoda; they are ribbon-like worms as adults, known as tapeworms. Their bodies consist of many similar units known as proglottids—essentially packages of eggs which are regularly shed into the environment to infect other organisms. Species of the other subclass, Cestodaria, are mainly fish infecting parasites. All cestodes are parasitic; many have complex life histories, including a stage in a definitive (main) host in which the adults grow and reproduce, often for years, and one or two intermediate stages in which the larvae develop in other hosts. Typically the adults live in the digestive tracts of vertebrates, while the larvae often live in the bodies of other animals, either vertebrates or invertebrates. For example, '' Diphyllobothrium'' has at least two intermediate hosts, a crustacean and then one or more freshwater fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trypanorhyncha
''Trypanorhyncha'' is an order of cestodes, a type of flatworm. Some species infect gamefish, such as sciaenids, during the parasitic worm's plerocercoid stage, and are commonly called spaghetti worm because of their appearance, approximating cooked spaghetti. Such species include '' Poecilancistrium caryophyllum'' and '' Pseudogrillotia pleistacantha''. Their scolex, or head region, has 2 to 4 bothria, or sucking grooves that cling onto the host. They have four retractable tentacles. Gallery FIG11 Nybelinia basimegacantha Tentacle.png, Tentacle of '' Nybelinia basimegacantha'', parasitic in the fish '' Neoniphon sammara'' Parasite140092-fig2 FIG 2 Cestoda Trypanorhyncha Callitetrarhynchus gracilis in Scomberomorus commerson.JPG, Plerocerci of '' Callitetrarhynchus gracilis'' in the body cavity of the fish ''Scomberomorus commerson'' Parasite140092-fig2 FIG 3 Cestoda Trypanorhyncha melanized plerocerci in Epinephelus sp.JPG, melanized plerocerci in the bodycavity of a grou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Museum Of Natural History
The National Museum of Natural History is a natural history museum administered by the Smithsonian Institution, located on the National Mall in Washington, D.C., United States. It has free admission and is open 364 days a year. In 2021, with 7.1 million visitors, it was the eighteenth most visited museum in the world and the second most visited natural history museum in the world after the Natural History Museum in London."The World's most popular museums", CNN.com, 22 June 2017. Opened in 1910, the museum on the National Mall was one of the first Smithsonian buildings constructed exclusively to hold the national collections and research facilities. The main building has an overall area of with of exhibition and public space and houses over 1,000 employees. The museum's collections contain over 145 million specimens of plants, animals, fossils, minerals, rocks, meteorites, human remains, and human cultural artifacts, the largest natural history collection in the world. It i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Baptiste Charcot
Jean-Baptiste-Étienne-Auguste Charcot (15 July 1867 – 16 September 1936), born in Neuilly-sur-Seine, was a French scientist, medical doctor and polar scientist. His father was the neurologist Jean-Martin Charcot (1825–1893). Life Jean-Baptiste Charcot was appointed leader of the French Antarctic Expedition with the ship ''Français'' exploring the west coast of Graham Land from 1904 until 1907. The expedition reached Adelaide Island in 1905 and took pictures of the Palmer Archipelago and Loubet Coast. From 1908 until 1910, another expedition followed with the ship '' Pourquoi Pas ?'', exploring the Bellingshausen Sea and the Amundsen Sea and discovering Loubet Land, Marguerite Bay, Mount Boland and Charcot Island, which was named after his father, Jean-Martin Charcot. anhere./ref> He named Hugo Island after Victor Hugo, the grandfather of his wife, Jeanne Hugo. Later on, Jean-Baptiste Charcot explored Rockall in 1921 and Eastern Greenland and Svalbard from 1925 until 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Ship Pourquoi Pas?
''Pourquoi-Pas'' or ''Pourquoi Pas?'' (from French ''pourquoi pas?'' 'why not?') may refer to one of these ships: * Four ships owned by the French navigator and naval officer Jean-Baptiste Charcot: ** , a cutter that Charcot had built in 1893 and in which he made a 2-week voyage in 1894. He sold her in 1896 to buy ''Pourquoi Pas ? II'' ** , the new name given by Charcot to a wooden schooner he bought in 1896, sold in 1897, and bought back in 1897; from 1897 he sailed her in British waters and in 1902 sailed towards Iceland, entering the Arctic Circle for the first time and approaching the glaciers ** , the new name given by Charcot to a iron schooner with a steam-engine he acquired in 1897 and in which he sailed down the River Nile as far as Aswan with the millionaire Vanderbilt ** , the most famous of the four * , a research vessel of the IFREMER and the French Navy The French Navy (french: Marine nationale, lit=National Navy), informally , is the maritime arm of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
