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Randall R. Parrish
Randall Richardson Parrish is an isotope geologist, who has developed improved methods of dating minerals and rocks using isotope geochronology. He was awarded the Murchison Medal of the Geological Society of London in 2010. Education Parrish studied geology at Middlebury College, Vermont, and graduated in 1974 with a senior thesis on the tectonics and metamorphism of central Vermont. He then moved to the University of British Columbia, where he completed an MSc in 1977 with a study of some crystalline rocks of the Canadian Shield, and a PhD in 1982 with a study of the geological history of the Coast Mountains of British Columbia. Career During his career, Parrish worked initially for the Canadian Geological Survey. Later, Parrish worked for the British Geological Survey, where he was head of the NERC isotope geosciences laboratory. In these roles, Parrish worked on multiple applications of isotope systems to the dating of geological events and processes, in settings from the Him ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineralogical Society Of Great Britain And Ireland
The Mineralogical Society of Great Britain and Ireland (now known as the Mineralogical Society of the United Kingdom and Ireland) was founded in 1876. Its main purpose is to disseminate scientific knowledge of the Mineral Sciences (mineralogy) as it may be applied to the fields of crystallography, geochemistry, petrology, environmental science and economic geology. In support of this vision, the society publishes scientific journals, books and monographs. It also organizes and sponsors scientific meetings, and the society connects with other societies which have similar scientific interests. Some of these other societies are the International Mineralogical Association, the European Mineralogical Union, the Mineralogical Society of America, the Mineralogical Association of Canada, the Geological Society of London, IOM3, the North of England Institute of Mining and Mechanical Engineers and the Microbiology Society. Publications The Society publishes a variety of book series; these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of British Columbia Alumni
A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , 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 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 (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 and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Middl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middlebury College Alumni
Middlebury may refer to: In education: * Middlebury College, a private liberal-arts college in Middlebury, Vermont Towns: * Middlebury, Connecticut * Middlebury, Illinois * Middlebury, Indiana * Middlebury, New York * Middlebury, Ohio * Middlebury, Vermont ** Middlebury (CDP), Vermont, the main settlement in the town Townships: * Middlebury Township, Elkhart County, Indiana * Middlebury Township, Michigan * Middlebury Township, Knox County, Ohio * Middlebury Township, Pennsylvania Unincorporated communities * Middlebury, Wisconsin {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murchison Medal Winners
Murchison may refer to: Geographical features * Lake Murchison, Tasmania, Australia * Mount Murchison (Tasmania), Australia * Murchison bioregion, a bioregion in Western Australia * Murchison Falls, Uganda * Murchison Glacier, New Zealand * Murchison Island, an island in Lake Nipigon, Ontario, Canada * Murchison Promontory, Canada * Murchison Range, Stauning Alps, Greenland * Murchison River (other) * Murchison Sound, Greenland National parks * Iytwelepenty / Davenport Ranges National Park in Australia * Murchison Falls National Park in Uganda * Murchison Mountains, Fiordland National Park, New Zealand Places Australia * Electoral district of Murchison-Eyre, a former state electorate of Western Australia * Electoral division of Murchison, an electorate in the Tasmanian Legislative Council * Murchison County, New South Wales * Murchison, Victoria * Murchison (Western Australia), a sub-region in the state * Shire of Murchison, a local government area in Western Austra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Birth Missing (living People)
A year is a unit of time based on how long it takes the Earth to orbit the Sun. In scientific use, the tropical year (approximately 365 solar days, 5 hours, 48 minutes, 45 seconds) and the sidereal year (about 20 minutes longer) are more exact. The modern calendar year, as reckoned according to the Gregorian calendar, approximates the tropical year by using a system of leap years. The term 'year' is also used to indicate other periods of roughly similar duration, such as the lunar year (a roughly 354-day cycle of twelve of the Moon's phasessee lunar calendar), as well as periods loosely associated with the calendar or astronomical year, such as the seasonal year, the fiscal year, the academic year, etc. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by changes in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Purpose: Because living persons may suffer personal harm from inappropriate information, we should watch their articles carefully. By adding an article to this category, it marks them with a notice about sources whenever someone tries to edit them, to remind them of WP:BLP (biographies of living persons) policy that these articles must maintain a neutral point of view, maintain factual accuracy, and be properly sourced. Recent changes to these articles are listed on Special:RecentChangesLinked/Living people. Organization: This category should not be sub-categorized. Entries are generally sorted by family name In many societies, a surname, family name, or last name is the mostly hereditary portion of one's personal name that indicates one's family. It is typically combined with a given name to form the full name of a person, although several give .... Maintenance: Individuals of advanced age (over 90), for whom there has been no new documentation in the last ten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf War
, combatant2 = , commander1 = , commander2 = , strength1 = Over 950,000 soldiers3,113 tanks1,800 aircraft2,200 artillery systems , page = https://www.govinfo.gov/content/pkg/GAOREPORTS-PEMD-96-10/pdf/GAOREPORTS-PEMD-96-10.pdf , strength2 = 1,000,000+ soldiers (~600,000 in Kuwait)5,500 tanks700+ aircraft3,000 artillery systems , casualties1 = Total:13,488 Coalition:292 killed (147 killed by enemy action, 145 non-hostile deaths)776 wounded (467 wounded in action)31 tanks destroyed/disabled28 Bradley IFVs destroyed/damaged1 M113 APC destroyed2 British Warrior APCs destroyed1 artillery piece destroyed75 aircraft destroyedKuwait:420 killed 12,000 captured ≈200 tanks destroyed/captured 850+ other armored vehicles destroyed/captured 57 aircraft lost 8 aircraft captured (Mirage F1s) 17 ships sunk, 6 captured. Acig.org. Retrieved on 12 June 2011 , casualties2 = Total:175,000–300,000+ Iraqi:20,000–50,000 killed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depleted Uranium
Depleted uranium (DU), also referred to in the past as Q-metal, depletalloy, or D-38, is uranium with a lower content of the fissile isotope Uranium-235, 235U than natural uranium. The less radioactive and non-fissile Uranium-238, 238U is the main component of depleted uranium. Uranium is notable for the extremely high density of its metallic form: at , uranium is more dense than lead. Depleted uranium, which has about the same density as natural uranium, is used when this high density is desirable but the higher radioactivity of natural uranium is not. Civilian uses include counterweights in aircraft, radiation shielding in medical radiation therapy, research and industrial radiography equipment, and containers for transporting radioactive materials. Military uses include Vehicle armour, armor plating and Armor-piercing shot and shell, armor-piercing projectiles. The use of DU in munitions is controversial because of concerns about potential long-term health effects. Normal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urine
Urine is a liquid by-product of metabolism in humans and many other animals. In placental mammals, urine flows from the Kidney (vertebrates), kidneys through the ureters to the urinary bladder and exits the urethra through the penile meatus (males) or urethral meatus of the vulva (females) during urination. In other vertebrates, urine is excreted through the cloaca. Urine contains water-soluble by-products of Cell (biology), cellular metabolism that are rich in nitrogen and must be clearance (medicine), cleared from the Circulatory system, bloodstream, such as urea, uric acid and creatinine. A urinalysis can detect nitrogenous wastes of the mammalian body. Urine plays an important role in the earth's nitrogen cycle. In balanced ecosystems, urine fertilizes the soil and thus helps plants to grow. Therefore, Reuse of excreta, urine can be used as a fertilizer. Some animals use it to territory (animal)#Scent marking, mark their territories. Historically, aged or fermented urine (kn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isotopes Of Uranium
Uranium (U) is a naturally occurring radioactive element (radioelement) with no stable isotopes. It has two primordial isotopes, uranium-238 and uranium-235, that have long half-lives and are found in appreciable quantity in Earth's crust. The decay product uranium-234 is also found. Other isotopes such as uranium-233 have been produced in breeder reactors. In addition to isotopes found in nature or nuclear reactors, many isotopes with far shorter half-lives have been produced, ranging from U to U (except for U). The standard atomic weight of natural uranium is . Natural uranium consists of three main isotopes, U (99.2739–99.2752% natural abundance), U (0.7198–0.7202%), and U (0.0050–0.0059%). All three isotopes are radioactive (i.e., they are radioisotopes), and the most abundant and stable is uranium-238, with a half-life of (about the age of the Earth). Uranium-238 is an alpha emitter, decaying through the 18-member uranium series into lead-206. The decay serie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
