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JoAnn Burkholder
JoAnn Marie Burkholder (born 1953) is an American professor of aquatic ecology at the North Carolina State University, Raleigh. She was responsible for identifying the cause, a dinoflagellate ''Pfiesteria piscicida'' and its toxins, of mass deaths of fish that posed a public health hazard. Her studies also helped in improving legislation to control pollution and eutrophication. Early life Burkholder was born in 1953 in Rockford, Illinois. Education Burkholder received a bachelor's degree from Iowa State University in 1975 followed by an MS from University of Rhode Island (1981) and a Ph.D. from Michigan State University in 1986. Career Burkholder investigated fish deaths in a laboratory and found that the cause of that and deaths in North Carolina rivers were due to a dinoflagellate ''Pfiesteria piscicida'' which was normally found in the bottom sediment where they feed on organic debris normally but infect fish during migrator runs. The toxins from the dinoflagellate also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa State University
Iowa State University of Science and Technology (Iowa State University, Iowa State, or ISU) is a Public university, public land-grant university, land-grant research university in Ames, Iowa, United States. Founded in 1858 as the Iowa Agricultural College and Model Farm, Iowa State became one of the nation's first designated land-grant institutions when the Iowa Legislature accepted the provisions of the 1862 Morrill Land-Grant Colleges Act, Morrill Act on September 11, 1862. On July 4, 1959, the college was officially renamed Iowa State University of Science and Technology. Iowa State is the second largest university in Iowa by total enrollment. The university's academic offerings are administered through eight colleges, including the Iowa State University College of Agriculture and Life Sciences, College of Agriculture and Life Sciences, the Iowa State University College of Veterinary Medicine, College of Veterinary Medicine, the Iowa State University College of Engineering, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Rhode Island
The University of Rhode Island (URI) is a public land-grant research university with its main campus in Kingston, Rhode Island, United States. It is the flagship public research as well as the land-grant university of Rhode Island. The university is classified among "R1: Doctoral Universities – Very high research activity". As of 2019, the URI enrolled 14,653 undergraduate students, 1,982 graduate students, and 1,339 non-degree students, making it the largest university in the state. Its main campus is located in the village of Kingston in southern Rhode Island. Satellite campuses include the Rhode Island Nursing Education Center in Providence's Jewelry District, the Narragansett Bay Campus in Narragansett, and the W. Alton Jones Campus in West Greenwich, which closed in June of 2020 due to the coronavirus pandemic. The university offers bachelor's degrees, master's degrees, and doctoral degrees in 80 undergraduate and 49 graduate areas of study through nine academic s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michigan State University
Michigan State University (Michigan State or MSU) is a public university, public Land-grant university, land-grant research university in East Lansing, Michigan, United States. It was founded in 1855 as the Agricultural College of the State of Michigan, the first of its kind in the country. After the introduction of the Morrill Land-Grant Acts, Morrill Act in 1862, the state designated the college a land-grant institution in 1863, making it the first of the land-grant colleges in the United States. The college became coeducational in 1870. Today, Michigan State has facilities all across the state and over 634,000 alumni. Michigan State is a member of the Association of American Universities and is Carnegie Classification of Institutions of Higher Education, classified among "R1: Doctoral Universities – Very high research activity". The university's campus houses the Facility for Rare Isotope Beams, the W. J. Beal Botanical Garden, the Abrams Planetarium, the Wharton Center f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Ecosystem
An aquatic ecosystem is an ecosystem found in and around a body of water, in contrast to land-based terrestrial ecosystems. Aquatic ecosystems contain communities of organisms—aquatic life—that are dependent on each other and on their environment. The two main types of aquatic ecosystems are marine ecosystems and freshwater ecosystems. Freshwater ecosystems may be lentic (slow moving water, including pools, ponds, and lakes); lotic (faster moving water, for example streams and rivers); and wetlands (areas where the soil is saturated or inundated for at least part of the time). Types Marine ecosystems Marine coastal ecosystem Marine surface ecosystem Freshwater ecosystems Lentic ecosystem (lakes) Lotic ecosystem (rivers) Wetlands Functions Aquatic ecosystems perform many important environmental functions. For example, they recycle nutrients, purify water, attenuate floods, recharge ground water and provide habitats for wildlife. The biota of an aqu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Carolina State University
North Carolina State University (NC State, North Carolina State, NC State University, or NCSU) is a public university, public Land-grant university, land-grant research university in Raleigh, North Carolina, United States. Founded in 1887 and part of the University of North Carolina system, it is the largest university in the Carolinas. The university forms one of the corners of the Research Triangle together with Duke University in Durham, North Carolina, Durham and the University of North Carolina at Chapel Hill. It is Carnegie Classification of Institutions of Higher Education, classified among "R1: Doctoral Universities – Very high research activity". The North Carolina General Assembly established North Carolina College of Agriculture and Mechanic Arts on March 7, 1887, as a land-grant university, land-grant college. The college underwent several name changes and officially became North Carolina State University at Raleigh in 1965. However, by longstanding convention, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pfiesteria Piscicida
''Pfiesteria piscicida'' is a dinoflagellate species of the genus ''Pfiesteria'' that some researchers claim was responsible for many harmful algal blooms in the 1980s and 1990s on the coast of North Carolina and Maryland. North Carolinian media in the 1990s referred to the organism as the cell from hell. It is known to populate estuaries. ''Piscicida'' means "fish-killer". Life cycles Early research suggested a very complex life cycle of ''Pfiesteria piscicida'' with up to 24 different stages, spanning from cyst to several amoeboid forms with toxic zoospores. Transformations from one stage to another depend on environmental conditions such as the availability of food. However these results have become controversial as additional research has found only a simple haplontic life cycle with no toxic amoeboid stages and amoebae present on attacked fish may represent an unrelated species of protist. Toxicity ''Pfiesteria'' presumably kills fish via releasing a toxin into the water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nonpoint Source Pollution
Nonpoint source (NPS) pollution refers to diffuse contamination (or pollution) of water or air that does not originate from a single discrete source. This type of pollution is often the cumulative effect of small amounts of contaminants gathered from a large area. It is in contrast to point source pollution which results from a single source. Nonpoint source pollution generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage, or hydrological modification (rainfall and snowmelt) where tracing pollution back to a single source is difficult. Nonpoint source water pollution affects a water body from sources such as polluted runoff from agricultural areas draining into a river, or wind-borne debris blowing out to sea. Nonpoint source air pollution affects air quality, from sources such as smokestacks or car tailpipes. Although these pollutants have originated from a point source, the long-range transport ability and multiple sources of the pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientific Freedom And Responsibility Award
The AAAS Award for Scientific Freedom and Responsibility is given by the American Association for the Advancement of Science and honours scientists and engineers whose exemplary actions, often taken at significant personal cost, have served to foster scientific freedom and responsibility and increased scientific awareness throughout the world.AAAD Awards – AAAS Award for Scientific Freedom and Responsibility AAAS webpage. According to the AAAS, exemplary actions include "acting to protect the public's health, safety or welfare; focusing public attention on important potential impacts of science and technology on society by their responsible participation in public policy debates." History The establishment of this new Award for Scient ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Association For The Advancement Of Science
The American Association for the Advancement of Science (AAAS) is a United States–based international nonprofit with the stated mission of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsibility, and supporting science education, scientific education and science outreach for the betterment of all humanity. AAAS was the first permanent organization established to promote science and engineering nationally and to represent the interests of American researchers from across all scientific fields. It is the world's largest general scientific society, with over 120,000 members, and is the publisher of the well-known scientific journal ''Science (journal), Science''. History Creation The American Association for the Advancement of Science was created on September 20, 1848, at the Academy of Natural Sciences in Philadelphia, Pennsylvania. It was a reformation of the Association of American Geologists and Naturalists with the broaden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1953 Births
Events January * January 6 – The Asian Socialist Conference opens in Rangoon, Burma. * January 12 – Estonian émigrés found a government-in-exile in Oslo. * January 14 ** Marshal Josip Broz Tito is chosen President of Yugoslavia. ** The CIA-sponsored Robertson Panel first meets to discuss the UFO phenomenon. * January 15 ** Georg Dertinger, foreign minister of East Germany, is arrested for spying. ** British security forces in West Germany arrest 7 members of the Naumann Circle, a clandestine Neo-Nazi organization. * January 19 – 71.1% of all television sets in the United States are tuned into '' I Love Lucy'', to watch Lucy give birth to Little Ricky, which is more people than those who tune into Dwight Eisenhower's inauguration the next day. This record is never broken. * January 24 ** Mau Mau Uprising: Rebels in Kenya kill the Ruck family (father, mother, and six-year-old son). ** Leader of East Germany Walter Ulbricht announces that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa State University Alumni
Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north. Iowa is the List of U.S. states and territories by area, 26th largest in total area and the List of U.S. states and territories by population, 31st most populous of the List of states and territories of the United States, 50 U.S. states, with a population of 3.19 million. The state's List of capitals in the United States, capital, List of cities in Iowa, most populous city, and largest List of metropolitan statistical areas, metropolitan area fully located within the state is Des Moines, Iowa, Des Moines. A portion of the larger Omaha–Council Bluffs metropolitan area, Omaha, Nebraska, metropolitan area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Limnologists
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 that was previously known as Def American * American University, in Washington, D.C. Sports teams S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
