|
Dorothy Riggs Pitelka
Dorothy Riggs Pitelka (born Dorothy Getchell Riggs, 13 September 1920 – 6 February 1994) was an American zoologist, protistologist, cancer researcher, and pioneer in applications of electron microscopy to zoology and protistology, known for her 1963 book ''Electron-Microscopic Structure of Protozoa''. Biography She was born in Merzifon, Turkey, where her father was the business manager of a missionary school. (Her father was a great-great-great-grandson (3x-grandson) of Zebulon Riggs (1719–1780), who was one of the first inhabitants of Mendham Township, New Jersey.) When she was three years old, the family returned from Turkey to the United States. They eventually settled in Denver, Colorado. She received in 1941 her bachelor's degree in zoology from the University of Colorado Boulder. With the aid of a teaching assistantship and a research fellowship, she became a graduate student in zoology at UC Berkeley and in February 1943 married a fellow graduate student Frank Pitelka. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1920 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band) 19 was a Japanese pop/folk duo. Its members were Kenji Okahira and Keigo Iwase The Japanese language has a system of honorific speech, referred to as , parts of speech that show respect. Their use is mandatory in many social situations. Ho ..., a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album '' 63/19'' by Kool A.D. * '' Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album ''Refugee (Bad4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Colorado Boulder Alumni
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic Church monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word ''universitas'' (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Cancer Researchers
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1994 Deaths
File:1994 Events Collage.png, From left, clockwise: The 1994 Winter Olympics are held in Lillehammer, Norway; The Kaiser Permanente building after the 1994 Northridge earthquake; A model of the MS Estonia, which sank in the Baltic Sea; Nelson Mandela casts his vote in the 1994 South African general election, in which he was elected South Africa's first president, and which effectively brought Apartheid to an end; NAFTA, which was signed in 1992, comes into effect in Canada, the United States, and Mexico; The first passenger rail service to utilize the newly-opened Channel tunnel; The 1994 FIFA World Cup is held in the United States; Skulls from the Rwandan genocide, in which over half a million Tutsi people were massacred by Hutus., 300x300px, thumb rect 0 0 200 200 1994 Winter Olympics rect 200 0 400 200 Northridge earthquake rect 400 0 600 200 Sinking of the MS Estonia rect 0 200 300 400 Rwandan genocide rect 300 200 600 400 Nelson Mandela rect 0 400 200 600 1994 F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mouse Mammary Tumor Virus
Mouse mammary tumor virus (MMTV) is a milk-transmitted retrovirus like the HTL viruses, HI viruses, and BLV. It belongs to the genus '' Betaretrovirus''. MMTV was formerly known as Bittner virus, and previously the "milk factor", referring to the extra-chromosomal vertical transmission of murine breast cancer by adoptive nursing, demonstrated in 1936, by John Joseph Bittner while working at the Jackson Laboratory in Bar Harbor, Maine. Bittner established the theory that a cancerous agent, or "milk factor", could be transmitted by cancerous mothers to young mice from a virus in their mother's milk. The majority of mammary tumors in mice are caused by mouse mammary tumor virus. Infection and life cycle Several mouse strains carry the virus endogenously, but it is also transmitted vertically via milk from mother to pup. It is contained as a DNA provirus integrated in the DNA of milk lymphocytes. The viruses become transported through the gastrointestinal tract to the Peyer's pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merzifon
Merzifon ( hy, Մարզուան, Marzvan, Romanization of Persian, Middle Persian: ; grc, Μερσυφὼν, Mersyphòn, el, Μερζιφούντα, Merzifounta) is a town and district in Amasya Province in the central Black Sea region of Turkey. It covers an area of , and the population (2020) is 73,849 of which 57,900 live in the town of Merzifon, the remainder spread throughout the surrounding countryside. The mayor is Alp Kargı (Republican People's Party, CHP). Modern Merzifon is a typical large but quiet Anatolian town with schools, hospitals, courts and other important infrastructure but few cultural amenities. There is a large airbase nearby. Merzifon is twinned with the city of Pleasant Hill, California. Etymology Former variants of its name include Marzifūn, Mersivan, Marsovan, Marsiwān, Mersuvan, Merzpond and Merzban. The name apparently comes from Marzban, the Persian title for a "march lord" or a district governor, although the exact connection is not clear. Sch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flagella
A flagellum (; ) is a hairlike appendage that protrudes from certain plant and animal sperm cells, and from a wide range of microorganisms to provide motility. Many protists with flagella are termed as flagellates. A microorganism may have from one to many flagella. A gram-negative bacterium ''Helicobacter pylori'' for example uses its multiple flagella to propel itself through the mucus lining to reach the stomach epithelium, where it may cause a gastric ulcer to develop. In some bacteria the flagellum can also function as a sensory organelle, being sensitive to wetness outside the cell. Across the three domains of Bacteria, Archaea, and Eukaryota the flagellum has a different structure, protein composition, and mechanism of propulsion but shares the same function of providing motility. The Latin word means "whip" to describe its lash-like swimming motion. The flagellum in archaea is called the archaellum to note its difference from the bacterial flagellum. Eukary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harold Kirby (zoologist)
Harold Kirby, Jr. (2 February 1900, Tusket, Nova Scotia – 24 February 1952) was a Canadian-American zoologist and protistologist, who was the chair of U. C. Berkeley's department of zoology from 1948 to 1952. Kirby immigrated in 1903 with his family to the United States and became a naturalized citizen in 1933. He received in 1922 his B.S. from Emory University and then in 1923 his M.A. and in 1925 his Ph.D. from U. C. Berkeley. C. A. Kofoid was the advisor for his doctoral dissertation. From 1925 to 1928 Kirby was an instructor in biology at Yale University. At U. C. Berkeley's zoology department, he was from 1928 to 1931 an assistant professor, from 1931 to 1940 an associate professor, and from 1940 until this death a full professor. Kirby devoted most of his career to the study of protists, specifically those flagellates that live in termite digestive tracts. He worked out a well-documented explanation of the evolutionary history of such flagellates. Kirby was on the e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_-_09.JPG "Click for more on -> University Of Colorado Boulder Alumni")
