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Herbert McLean Evans
Herbert McLean Evans (September 23, 1882 – March 6, 1971) was an American anatomist and embryologist best known for co-discovering Vitamin E. Education He was born in Modesto, California. In 1908, he obtained his medical degree from Johns Hopkins University. Career Evans became associate professor of anatomy at Johns Hopkins University. Evans moved back to California in 1915 and was made professor of anatomy at the University of California, Berkeley, and held that position until his death. His medical research at Berkeley addressed problems relating to human nutrition, endocrinology, embryology, and histology. In 1918, his research into the number of human chromosomes led him to believe the number to be 48, when most people assumed the number to be much higher. It was only later discovered that the correct figure was 46. Evans had much greater success however with hormones extracted from the anterior lobe of the pituitary gland. He isolated Human Growth Hormone, which is esse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Modesto
Modesto ( ; ) is the county seat and largest city of Stanislaus County, California, United States. With a population of 218,069 according to 2022 U.S. Census Bureau estimates, it is the 19th-most populous city in California. Modesto is located in the Central Valley region, south of Sacramento and north of Fresno. Distances from other places include: north of Merced, California, east of San Francisco, west of Yosemite National Park, and south of Stockton. The city, in the San Joaquin Valley, is surrounded by rich farmland. Stanislaus County ranks sixth among California counties in farm production. It is home to Gallo Family Winery, the largest family-owned winery in the United States. Led by milk, almonds, chickens, walnuts, and corn silage, the county grossed nearly $3.1 billion in agricultural production in 2011. The farm-to-table movement plays a central role in Modesto living in the Central Valley. Modesto has been often honored as a Tree City USA. Hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Katharine Bishop
Katharine Julia Scott Bishop (June 23, 1889 – September 20, 1975) was a trained anatomist, medical physician, researcher and educator best known for co-discovering Vitamin E. Early life In 1889, Bishop was born in New York as Katharine Scott, to Walter and Katherine Emma (Campbell) Scott. She attended the Somerville High School (Massachusetts) for high school and later received her undergraduate degree from Wellesley College in 1910. After taking premedical courses at Radcliffe College, Bishop went on to graduate from The Johns Hopkins University School of Medicine and earned her medical degree in 1915. Discovery of Vitamin E After graduating from medical school, Bishop moved to Berkeley to teach histology in the anatomy department at the University of California Medical School until 1923. During this time, Bishop did her medical research with anatomist and endocrinologist Herbert McLean Evans. Together, they published a monograph on the vital staining of connective tissue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
American Geneticists
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 The American University (AU or A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
1971 Deaths
* The year 1971 had three partial solar eclipses (Solar eclipse of February 25, 1971, February 25, Solar eclipse of July 22, 1971, July 22 and Solar eclipse of August 20, 1971, August 20) and two total lunar eclipses (February 1971 lunar eclipse, February 10, and August 1971 lunar eclipse, August 6). The world population increased by 2.1% this year, the highest increase in history. Events January * January 2 – 1971 Ibrox disaster: During a crush, 66 people are killed and over 200 injured in Glasgow, Scotland. * January 5 – The first ever One Day International cricket match is played between Australia and England at the Melbourne Cricket Ground. * January 8 – Tupamaros kidnap Geoffrey Jackson, British ambassador to Uruguay, in Montevideo, keeping him captive until September. * January 9 – Uruguayan president Jorge Pacheco Areco demands emergency powers for 90 days due to kidnappings, and receives them the next day. * January 12 – The landmark United States televis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
1882 Births
Events January * January 2 ** The Standard Oil Trust (business), Trust is secretly created in the United States to control multiple corporations set up by John D. Rockefeller and his associates. ** Irish-born author Oscar Wilde arrives in New York at the beginning of a lecture tour of the United States and Canada. * January 5 – Charles J. Guiteau is found guilty of the assassination of James A. Garfield (President of the United States) and sentenced to death, despite an insanity defense raised by his lawyer. * January 12 – Holborn Viaduct power station in the City of London, the world's first coal-fired public electricity generating station, begins operation. February * February 3 – American showman P. T. Barnum acquires the elephant Jumbo from the London Zoo. March * March 2 – Roderick Maclean fails in an attempt to assassinate Queen Victoria, at Windsor, Berkshire, Windsor. * March 18 (March 6 Old Style) – The Principality of Serbia becomes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
University Of Texas At Austin
The University of Texas at Austin (UT Austin, UT, or Texas) is a public university, public research university in Austin, Texas, United States. Founded in 1883, it is the flagship institution of the University of Texas System. With 53,082 students as of fall 2023, it is also the largest institution in the system. The university is a major center for academic research, with research expenditures totaling $1.06 billion for the 2023 fiscal year. It joined the Association of American Universities in 1929. The university houses seven museums and seventeen libraries, including the Lyndon Baines Johnson Library and Museum, Lyndon B. Johnson Presidential Library and the Blanton Museum of Art, and operates various auxiliary research facilities, such as the J. J. Pickle Research Campus and McDonald Observatory. UT Austin's athletics constitute the Texas Longhorns. The Longhorns have won four NCAA Division I National Football Championships, six NCAA Division I National Baseball Champions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Harry Ransom Center
The Harry Ransom Center, known as the Humanities Research Center until 1983, is an archive, library, and museum at the University of Texas at Austin, specializing in the collection of literary and cultural artifacts from the Americas and Europe for the purpose of advancing the study of the arts and humanities. The Ransom Center houses 36 million literary manuscripts, one million rare books, five million photographs, and more than 100,000 works of art. The center has a reading room for scholars and galleries which display rotating exhibitions of works and objects from the collections. In the 2015–16 academic year, the center hosted nearly 6,000 research visits, resulting in the publication of over 145 books. History Harry Ransom founded the Humanities Research Center in 1957 with the ambition of expanding the rare books and manuscript holdings of the University of Texas. He acquired the Edward Alexander Parsons Collection, the T. Edward Hanley Collection, and the Norman Bel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Blood
Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood is composed of blood cells suspended in blood plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains proteins, glucose, mineral ions, and hormones. The blood cells are mainly red blood cells (erythrocytes), white blood cells (leukocytes), and (in mammals) platelets (thrombocytes). The most abundant cells are red blood cells. These contain hemoglobin, which facilitates oxygen transport by reversibly binding to it, increasing its solubility. Jawed vertebrates have an adaptive immune system, based largely on white blood cells. White blood cells help to resist infections and parasites. Platelets are important in the clotting of blood. Blood is circulated around the body through blood vessels by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Evans Blue (dye)
T-1824 or Evans blue, often incorrectly rendered as Evan's blue, is an azo dye that has a very high affinity for serum albumin. Because of this, it can be useful in physiology in estimating the proportion of body water contained in blood plasma. It fluoresces with excitation peaks at 470 and 540 nm and an emission peak at 680 nm. Evans blue dye has been used as a viability assay on the basis of its penetration into non-viable cells, although the method is subject to error because it assumes that damaged or otherwise altered cells are not capable of repair and therefore are not viable. Evans blue is also used to assess the permeability of the blood–brain barrier to macromolecules. Because serum albumin cannot cross the barrier and virtually all Evans blue is bound to albumin, normally the neural tissue remains unstained. When the blood–brain barrier has been compromised, albumin-bound Evans blue enters the CNS. Evans blue is pharmacologically active, acting as a negat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Oestrus
The estrous cycle (, originally ) is a set of recurring physiological changes induced by reproductive hormones in females of mammalian subclass Theria. Estrous cycles start after sexual maturity in females and are interrupted by anestrous phases, otherwise known as "rest" phases, or by pregnancies. Typically, estrous cycles repeat until death. These cycles are widely variable in duration and frequency depending on the species.Bronson, F. H., 1989. Mammalian Reproductive Biology. University of Chicago Press, Chicago, IL, USA. Some animals may display bloody vaginal discharge, often mistaken for menstruation. Many mammals used in commercial agriculture, such as cattle and sheep, may have their estrous cycles artificially controlled with hormonal medications for optimum productivity. The male equivalent, seen primarily in ruminants, is called rut. Differences from the menstrual cycle Mammals share the same reproductive system, including the regulatory hypothalamic system tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Choh Hao Li
Choh Hao Li (sometimes ''Cho Hao Li'') (; April 21, 1913 – November 28, 1987) was a Chinese-born American biochemist who discovered in 1966 that human pituitary growth hormone ( somatotropin) consists of a chain of 256 amino acids. In 1970, he succeeded in synthesizing this hormone, the largest protein molecule synthesized up to that time. Life and career Li was born in Guangzhou and educated at the Nanjing University. In 1935, he immigrated to the US, where he took up postgraduate studies at the University of California, Berkeley, and later joined the staff. He became professor in 1950. He served as Director of the Hormone Research Laboratory at Berkeley from 1950 to 1967 and at UCSF from 1967 until his retirement in 1983. In 1955, he was elected as Academician of Academia Sinica, Republic of China. Li dedicated his entire academic career studying the pituitary-gland hormones. In collaboration with various co-workers, he isolated several protein hormones, including adre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
