|
Djerassi Glacier
Djerassi Glacier ( bg, ледник Джераси, lednik Dzherasi, ) is a 2.8 km long and 1 km wide steep valley glacier situated south of Gorichane Glacier, west of the head of Malpighi Glacier, northwest of the head of Mackenzie Glacier, and north-northeast of Pirogov Glacier on Brabant Island in the Palmer Archipelago, Antarctica. It drains the west slopes of Harvey Heights and the north slopes of Mount Parry, and flows northwestwards into Lanusse Bay north of Venchan Bluff. The glacier is named for the Bulgarian-American scientist Carl Djerassi (1923-2015), a co-inventor of the oral contraceptive pill. Location Djerassi Glacier is centred at . British mapping in 1980. See also * List of glaciers in the Antarctic * Glaciology Maps Antarctic Digital Database (ADD).Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated.British Antarctic Territory.Scale 1:200000 topographic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the lowest measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulgarian Americans
Bulgarian Americans ( bg, Американски българи) are Americans of Bulgarian descent. For the 2000 United States Census, 55,489 Americans indicated Bulgarian as their first ancestry, while 92,841 persons declared to have Bulgarian ancestry. Those can include Bulgarian Americans living in the United States for one or several generations, dual Bulgarian American citizens, or any other Bulgarian Americans who consider themselves to be affiliated to both cultures or countries. Bulgarian Americans include persons born in Bulgaria, in the United States, and in other countries with ethnic Bulgarian population. Because some Bulgarians are not American citizens, others are dual citizens, and still others' ancestors came to the U.S. several generations ago, some of these people consider themselves to be simply Americans, Bulgarians, Bulgarians living in the United States or American Bulgarians. After the 2000 U.S. census, in the recent years the population grew significantl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciers Of The Palmer Archipelago
A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Place-names Commission
The Antarctic Place-names Commission was established by the Bulgarian Antarctic Institute in 1994, and since 2001 has been a body affiliated with the Ministry of Foreign Affairs of Bulgaria. The Commission approves Bulgarian place names in Antarctica, which are formally given by the President of the Republic according to the Bulgarian Constitution (Art. 98) and the established international practice. Bulgarian names in Antarctica Geographical names in Antarctica reflect the history and practice of Antarctic exploration. The nations involved in Antarctic research give new names to nameless geographical features for the purposes of orientation, logistics, and international scientific cooperation. As of 2021, there are some 20,091 named Antarctic geographical features, including 1,601 features with names given by Bulgaria.Bulgarian Antarctic Gazett ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Gazetteer Of Antarctica
The Composite Gazetteer of Antarctica (CGA) of the Scientific Committee on Antarctic Research (SCAR) is the authoritative international gazetteer containing all Antarctic toponyms published in national gazetteers, plus basic information about those names and the relevant geographical features. The Gazetteer includes also parts of the International Hydrographic Organization (IHO) General Bathymetric Chart of the Oceans (GEBCO) gazetteer for under-sea features situated south of 60° south latitude. , the overall content of the CGA amounts to 37,893 geographic names for 19,803 features including some 500 features with two or more entirely different names, contributed by the following sources: {, class="wikitable sortable" ! Country ! Names , - , United States , 13,192 , - , United Kingdom , 5,040 , - , Russia , 4,808 , - , New Zealand , 2,597 , - , Australia , 2,551 , - , Argentina , 2,545 , - , Chile , 1,866 , - , Norway , 1,706 , - , Bulgaria , 1,450 , - , Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Committee On Antarctic Research
The Scientific Committee on Antarctic Research (SCAR) is an interdisciplinary body of the International Science Council (ISC). SCAR coordinates international scientific research efforts in Antarctica, including the Southern Ocean. SCAR's scientific work is administered through several discipline-themed ''science groups''. The organisation has observer status at, and provides independent advice to Antarctic Treaty Consultative Meetings, and also provides information to other international bodies such as the Intergovernmental Panel on Climate Change (IPCC) and the United Nations Framework Convention on Climate Change (UNFCCC). History At the International Council of Scientific Unions (ICSU)’s Antarctic meeting held in Stockholm from 9–11 September 1957, it was agreed that a committee should be created to oversee scientific research in Antarctica. At the time there were 12 nations actively conducting Antarctic research and they were each invited to nominate one delegate to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciology
Glaciology (; ) is the scientific study of glaciers, or more generally ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, climatology, meteorology, hydrology, biology, and ecology. The impact of glaciers on people includes the fields of human geography and anthropology. The discoveries of water ice on the Moon, Mars, Europa and Pluto add an extraterrestrial component to the field, which is referred to as "astroglaciology". Overview A glacier is an extended mass of ice formed from snow falling and accumulating over a long period of time; glaciers move very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers. Areas of study within glaciology include glacial history and the reconstruction of past glaciation. A glaciologist is a person who studies glaciers. A glacial geologist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Glaciers In The Antarctic
There are many glaciers in the Antarctic. This set of lists does not include ice sheets, ice caps or ice fields, such as the Antarctic ice sheet, but includes glacial features that are defined by their flow, rather than general bodies of ice. The lists include outlet glaciers, valley glaciers, cirque glaciers, tidewater glaciers and ice streams. Ice streams are a type of glacier and many of them have "glacier" in their name, e.g. Pine Island Glacier. Ice shelves are listed separately in the List of Antarctic ice shelves. For the purposes of these lists, the Antarctic is defined as any latitude further south than 60° (the continental limit according to the Antarctic Treaty System). List by letters * List of glaciers in the Antarctic: A–H * List of glaciers in the Antarctic: I–Z See also * List of Antarctic and subantarctic islands * List of Antarctic ice rises * List of Antarctic ice shelves * List of Antarctic ice streams * List of glaciers * List of subantar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oral Contraceptive Pill
Oral contraceptives, abbreviated OCPs, also known as birth control pills, are medications taken by mouth for the purpose of birth control. Female Two types of female oral contraceptive pill, taken once per day, are widely available: * The combined oral contraceptive pill contains estrogen and a progestin. Colloquially known as "The Pill". * The progestogen-only pill, colloquially known as "minipill". * Ormeloxifene is a selective estrogen receptor modulator which offers the benefit of only having to be taken once a week. Emergency contraception pills ("morning after pills") are taken at the time of intercourse, or within a few days afterwards: * Levonorgestrel, sold under the brand name Plan B * Ulipristal acetate * Mifepristone and misoprostol, when used in combination, are more than 95% effective during the first 50 days of pregnancy. Male * Male oral contraceptive Male contraceptives, also known as male birth control, are methods of preventing pregnancy that solely invol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Djerassi
Carl Djerassi (October 29, 1923 – January 30, 2015) was an Austrian-born Bulgarian-American pharmaceutical chemist, novelist, playwright and co-founder of Djerassi Resident Artists Program with Diane Middlebrook, Diane Wood Middlebrook. He is best known for his contribution to the development of combined oral contraceptive pill, oral contraceptive pills,Ball P (2015) "Carl Djerassi", Nature (journal), Nature 519(7541), 34. nicknamed the "father of the pill". Early life Carl Djerassi was born in Vienna, Austria, but spent the first years of his infancy in Sofia, Bulgaria, the home of his father, Samuel Djerassi, a dermatologist and specialist in sexually transmitted diseases.Weintraub, Bob "Pincus, Djerassi and Oral Contraceptives" ''Chemistry in Israel'', Bulletin of the Israel Chemical Society. August 2005, pp. 47–50. His mother was Alice Friedmann, a Viennese dentist and physician. Both parents were History of the Jews in Europe, Jewish. Following his parents' divorce, Djer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venchan Bluff
Venchan Bluff ( bg, рид Венчан, rid Venchan, ) is the mostly ice-covered bluff rising to 1283 mReference Elevation Model of Antarctica. Polar Geospatial Center. University of Minnesota, 2019 at the end of a side ridge extending towards from in on Brabant Island in the [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palmer Archipelago
Palmer Archipelago, also known as Antarctic Archipelago, Archipiélago Palmer, Antarktiske Arkipel or Palmer Inseln, is a group of islands off the northwestern coast of the Antarctic Peninsula. It extends from Tower Island in the north to Anvers Island in the south. It is separated by the Gerlache and Bismarck straits from the Antarctic Peninsula and Wilhelm Archipelago, respectively. Palmer Archipelago is located at . History Adrien de Gerlache, leader of the Belgian Antarctic Expedition (1897–1899), discovered the archipelago in 1898. He named it Archipelago Palmer for American Captain Nathaniel Palmer, who navigated these waters in 1820. Both Argentina and the United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ... have operated research stations there. Islands ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
