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Alexei Fedchenko
Alexei Pavlovich Fedchenko (russian: Алексей Павлович Федченко; 31 August/15 September 1873), a.k.a. Alexei Pavlovich Fedtschenko, was a Russian naturalist and explorer well known for his travels in central Asia. Alternative transliterations of his name, used in languages such as German, include Aleksei Pavlovich Fedtschenko and Alexei Pawlowitsch Fedtschenko. Biography Fedchenko was born at Irkutsk, in Siberia, and after attending the gymnasium of his native town, proceeded to the University of Moscow, to study zoology and geology. He married Olga Armfeldt, a botanist. In 1868, they travelled through Turkestan, Samarkand, Panjakent, and the upper Zarafshan River valley. In 1870, they explored the Fan Mountains south of the Zarafshan. In 1871, they reached the Alay Valley at Daroot-Korgan and saw the northern Pamir Mountains but were unable to penetrate southward. He also collected significant numbers of insects from three explorations from 1869 to 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irkutsk
Irkutsk ( ; rus, Иркутск, p=ɪrˈkutsk; Buryat language, Buryat and mn, Эрхүү, ''Erhüü'', ) is the largest city and administrative center of Irkutsk Oblast, Russia. With a population of 617,473 as of the 2010 Census, Irkutsk is the List of cities and towns in Russia by population, 25th-largest city in Russia by population, the fifth-largest in the Siberian Federal District, and one of the largest types of inhabited localities in Russia, cities in Siberia. Located in the south of the eponymous oblast, the city proper lies on the Angara River, a tributary of the Yenisei River, Yenisei, about 850 kilometres (530 mi) to the south-east of Krasnoyarsk and about 520 kilometres (320 mi) north of Ulaanbaatar. The Trans-Siberian Highway (Federal M53 and M55 Highways) and Trans-Siberian Railway connect Irkutsk to other regions in Russia and Mongolia. Many distinguished Russians were sent into exile in Irkutsk for their part in the Decembrist revolt of 1825, and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zarafshan River
The Zeravshan; uz, Zeravshon, Зеравшон, زېرەۋشان; from Persian fa, , Zarâfšân – meaning "the spreader of gold" is a river in Tajikistan and Uzbekistan, Central Asia. Its name, "spreader of gold" in Persian, refers to the presence of gold-bearing sands in the upper reaches of the river. To the ancient Greeks it was known as the ''Polytimetus''. It was also formerly known as ''Sughd River''. The river is long and has a basin area of . Geographic position It rises at the Zeravshan Glacier, close to where the Turkestan Range and the Zeravshan Range of the Pamir-Alay mountains meet, in Tajikistan. In its upper course, upstream from its confluence with the Fan Darya, it is also called ''Matcha''. It flows due west for some , passing Panjakent before entering Uzbekistan at , where it turns west-to-north-west, flowing past the legendary city of Samarkand, where it feeds the Dargom Canal, which is entirely dependent on the oasis thus created, until it bends lef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fedchenko Glacier
The Fedchenko Glacier (russian: Ледник Федченко; tg, Пиряхи Федченко) is a large glacier in the Yazgulem Range, Pamir Mountains, of north-central Gorno-Badakhshan province, Tajikistan. The glacier is long and narrow, currently extending for and covering over . It is the longest glacier in the world outside of the polar regions.In the Karakoram Mountains, the Siachen Glacier is 76 km long, the Biafo Glacier is 67 km long, and the Baltoro is 63 km long. The Bruggen or Pio XI Glacier in southern Chile is 66 km long. Kyrgyzstan's South Inylchek (Enylchek) Glacier is 60.5 km in length. Measurements are from recent imagery, generally with Russian 1:200,000 scale topographic mapping for reference as well as the 1990 ''Orographic Sketch Map: Karakoram: Sheets 1 and 2'', Swiss Foundation for Alpine Research, Zurich. The maximum thickness of the glacier is , and the volume of the Fedchenko and its dozens of tributaries is estimated at —about a thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
August Heinrich Petermann
Augustus Heinrich Petermann (18 April 182225 September 1878) was a German cartographer. Early years Petermann was born in Bleicherode, Germany. When he was 14 years old he started grammar school in the nearby town of Nordhausen. His mother wanted him to become a clergyman, but his excellence in the drawing of maps and his love for geographic readings made his choice of another career inevitable. Heinrich Berghaus, with support of Alexander von Humboldt, had started the 'Geographische Kunstschule' (Geographical School of Art) in 1839 in Potsdam, close to Berlin, following the example of the school for engravers at the Archives Militaires Generales in Paris (founded in 1811). During its existence Berghaus's academy offered only three courses, and only a few students attended: * 1839–1844: August Petermann, Heinrich 'Henry' Lange (1821–1893), and Otto Göcke, who died one year later of tuberculosis * 1844–1847: Amandus Sturmhöfel (1823–?) and Theodor Schilling * 1845– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracunculiasis
Dracunculiasis, also called Guinea-worm disease, is a parasitic infection by the Guinea worm, ''Dracunculus medinensis''. A person becomes infected by drinking water containing water fleas infected with guinea worm larvae. The worms penetrate the digestive tract and escape into the body. Around a year later, the adult worm migrates to an exit site – usually a lower limb – and induces an intensely painful blister on the skin. The blister eventually bursts to form an intensely painful open wound, from which the worm slowly crawls over several weeks. The wound remains painful throughout the worm's emergence, disabling the infected person for the three to ten weeks it takes the worm to emerge. During this time, the open wound can become infected with bacteria, leading to death in around 1% of cases. There is no medication to treat dracunculiasis. Instead, the mainstay of treatment is the careful wrapping of the emerging worm around a small stick to encourage its exit. Each day, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dracunculus (nematode)
''Dracunculus'' is a genus of spiruroid nematode parasites in the family Dracunculidae. The worms can reach a metre in length. If one simply pulls off the protruding head of the worm, the worm will break and leak high levels of foreign antigen which can lead to anaphylactic shock and fast death of the host. Hence it is important to remove the worm slowly (over a period of weeks). This is typically undertaken by winding the worm onto a stick (say, a matchstick), by a few centimetres each day. Life cycle All members of ''Dracunculus'' are obligate parasites of mammals or reptiles. Adult females reside just under the skin, and eventually form a blister in the host's skin through which they access the environment. When the blister comes into contact with water, the female releases several hundred thousand first-stage ("L1") larvae. L1 larvae must be ingested by a cyclopoid copepod, which serves as an intermediate host. Inside the copepod, the larvae develop to the third-stage ("L3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boris Fedtschenko
Boris Alexeevich Fedtschenko (27 December 1872 – 29 September 1947) was a Russian plant pathologist and botanist. He is primarily known for his work on various regions of Russia, especially the Caucasus, Siberia and Asiatic Russia. He was also head botanist at the Saint Petersburg Botanical Garden. Biography Boris Fedtschenko was the son of botanists Olga Fedtschenko and Alexei Pavlovich Fedchenko. He was born in Leipzig, while his parents were on an expedition in Western Europe.VL Komarov Комаров В. Л., Ольга Александровна Федченко. Некролог bituary for Olga Alexandrovna Fedchenko// Изв. Росс. акад. наук, 6 серия. 1921 Т. 15 pages1-18 In 1873, eight months after he was born, Alexei was killed in a climbing accident on Mont Blanc. Olga studied natural sciences at the University of Moscow. Between 1891-1892, she undertook the first of many trips with her son, going first to the Ural Mountains. In the summer o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chamonix
Chamonix-Mont-Blanc ( frp, Chamôni), more commonly known as Chamonix, is a commune in the Haute-Savoie department in the Auvergne-Rhône-Alpes region of southeastern France. It was the site of the first Winter Olympics in 1924. In 2019, it had a population of 8,640. Situated to the north of Mont Blanc, between the peaks of the Aiguilles Rouges and the notable Aiguille du Midi, Chamonix is one of the oldest ski resorts in France. The Chamonix commune is popular with skiers and mountain enthusiasts. Via the cable car lift to the Aiguille du Midi it is possible to access the off-piste (backcountry) ski run of the ''Vallée Blanche''. Name The name Campum munitum, meaning fortified plain or field, had been used as early as 1091. By 1283 the name had been abbreviated to a similar form to the modern Chamonis. Other forms through the ages include Chamouny in 1581, Chamony in 1652, Chamouni in 1786, and the particular spelling Chamonix from 1793. Status Chamonix is the fourth-largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pacific and Indian Oceans. Its Metropolitan France, metropolitan area extends from the Rhine to the Atlantic Ocean and from the Mediterranean Sea to the English Channel and the North Sea; overseas territories include French Guiana in South America, Saint Pierre and Miquelon in the North Atlantic, the French West Indies, and many islands in Oceania and the Indian Ocean. Due to its several coastal territories, France has the largest exclusive economic zone in the world. France borders Belgium, Luxembourg, Germany, Switzerland, Monaco, Italy, Andorra, and Spain in continental Europe, as well as the Kingdom of the Netherlands, Netherlands, Suriname, and Brazil in the Americas via its overseas territories in French Guiana and Saint Martin (island), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andrena
''Andrena'' is a genus of bees in the family Andrenidae. With over 1,500 species, it is one of the largest genera of animals. It is a strongly monophyletic group that is difficult to split into more manageable divisions; currently, ''Andrena'' is organized into 104 subgenera. It is nearly worldwide in distribution, with the notable exceptions of Oceania and South America. Bees in this genus are commonly known as mining bees due to their ground-nesting lifestyle. Morphology ''Andrena'' are generally medium-sized bees; body length ranges between 8 and 17 mm with males being smaller and more slender than females. Most are black with white to tan hair, and their wings have either two or three submarginal cells. They carry pollen mainly on femoral scopal hairs, but many ''Andrena'' have an additional propodeal corbicula for carrying some pollen on their thorax. C. D. Michener (2007) ''The Bees of the World'', 2nd Edition, Johns Hopkins University Press. They can be distin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Petersburg
Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), is the second-largest city in Russia. It is situated on the Neva River, at the head of the Gulf of Finland on the Baltic Sea, with a population of roughly 5.4 million residents. Saint Petersburg is the fourth-most populous city in Europe after Istanbul, Moscow and London, the most populous city on the Baltic Sea, and the world's northernmost city of more than 1 million residents. As Russia's Imperial capital, and a historically strategic port, it is governed as a federal city. The city was founded by Tsar Peter the Great on 27 May 1703 on the site of a captured Swedish fortress, and was named after apostle Saint Peter. In Russia, Saint Petersburg is historically and culturally associated with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Morawitz
Ferdinand Ferdinandovich Morawitz (russian: Фердинанд Фердинандович Моравиц, german: Ferdinand Carl Joseph Morawitz; 3 August 1827 in St. Petersburg – 5 December 1896 in St. Petersburg) was a Russian entomologist. His parents were German emigrants from Silesia. He was brought up in a closed school for boys. In 1853, Morawitz graduated from the 'Dorpat' (part of Tartu University), Estonia with a 'Doctor of Medicine' degree. With a final year dissertation on the anatomy of Blatta germanica. After he graduated, he moved to St Petersburg. He then had a Doctors practise for 15 years until 1879. But in his spare time he was interested in entomology. He was one of the founding members of the Russian Entomological Society in 1859. He first published scientific work on Coleoptera in 1860. Morawitz also studied the collection of naturalist Alexei Pavlovich Fedchenko, who had collected significant numbers of insects from three explorations from 1869 to 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
