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Biography
George Nelson
George Driver "Pinky" Nelson (born (1950-07-13)July 13, 1950) is an American physicist, astronomer, science educator, and a former NASA astronaut. Nelson was born on July 13, 1950, in Charles City, Iowa, but considers Willmar, Minnesota, to be his hometown. He graduated from Willmar Senior High School, Willmar, Minnesota, in 1968. He received a Bachelor of Science degree in Physics from Harve
  • 980
  • 30 Nov 2022
Biography
Ward Plummer
E. Ward Plummer is an American physicist. His main contributions are in surface physics of metals. Plummer is a Professor of Physics at Louisiana State University. Plummer received a Bachelor of Arts degree from Lewis and Clark College in 1962 and completed his Ph.D. degree in physics at Cornell University in 1967, working with Prof. Thor Rhodin. His thesis work was on atomic binding of 5-d t
  • 978
  • 10 Nov 2022
Biography
Paul O. Müller
Paul O. Müller (born April 18, 1915 in Graz; d. March 9, 1942 at Pechenkino near Sukhinichi) was an Austrian theoretical nuclear physicist who worked in the German Uranverein. He was drafted into the German armed forces and died on the Russian Front in World War II.[1] Müller undertook graduate studies at the University of Graz. He received his doctorate in Graz on February 25, 1939, under
  • 977
  • 15 Dec 2022
Topic Review
Danaus (Genus)
Danaus, commonly called tigers, milkweeds, monarchs, wanderers, and queens, is a genus of butterflies in the tiger butterfly tribe. They are found worldwide, including North America, South America, Africa, Asia, Indonesia and Australia . For other tigers see the genus, Parantica.
  • 977
  • 19 Oct 2022
Biography
Harold A. Zahl
Harold Adelbert Zahl (August 24, 1904 – March 11, 1973) was an American physicist who had a 35-year career with the U.S. Army Signal Corps Laboratories, making major contributions to radar development. Harold Zahl was born in Chatsworth, Illinois, the son of an Evangelical minister. While still in high school, he became an amateur radio operator (call letters 6BHI). He graduated in physics
  • 975
  • 08 Dec 2022
Biography
Solomon Isaakovich Pekar
Solomon Isaakovich Pekar (March 16, 1917 – July 8, 1985), a Soviet theoretical physicist, born in Kiev, Ukraine . He was a full Member of the Ukrainian Academy of Sciences and is known for his fundamental contributions to condensed matter physics, especially for introducing and advancing the concept of polaron as a charge carrier in solids. In 1941 Pekar submitted his Candidate of Science t
  • 974
  • 11 Dec 2022
Biography
Robley D. Evans
Robley Dunglison Evans (May 18, 1907, University Place, Nebraska – December 31, 1995, Paradise Valley, Arizona) was an American nuclear physicist and pioneer of nuclear medicine. He was the president of the Health Physics Society in 1972–1973.[1] His father Manley Jefferson Evans (1878–1970) and mother Alice Jennie Turner (1882–1965) married in August 1905 in O'Neill, Nebraska. Manley
  • 974
  • 14 Dec 2022
Topic Review
Aphthosis
Aphthous stomatitis, or recurrent aphthous stomatitis (RAS), is a common condition characterized by the repeated formation of benign and non-contagious mouth ulcers (aphthae) in otherwise healthy individuals. The informal term canker sore is also used, mainly in North America, although it may also refer to other types of mouth ulcers. The cause is not completely understood but involves a T cell-mediated immune response triggered by a variety of factors which may include nutritional deficiencies, local trauma, stress, hormonal influences, allergies, genetic predisposition, certain foods, dehydration, or some food additives. These ulcers occur periodically and heal completely between attacks. In the majority of cases, the individual ulcers last about 7–10 days, and ulceration episodes occur 3–6 times per year. Most appear on the non-keratinizing epithelial surfaces in the mouth – i.e. anywhere except the attached gingiva, the hard palate and the dorsum of the tongue – although the more severe forms, which are less common, may also involve keratinizing epithelial surfaces. Symptoms range from a minor nuisance to interfering with eating and drinking. The severe forms may be debilitating, even causing weight loss due to malnutrition. The condition is very common, affecting about 20% of the general population to some degree. The onset is often during childhood or adolescence, and the condition usually lasts for several years before gradually disappearing. There is no cure, and treatments such as corticosteroids aim to manage pain, reduce healing time and reduce the frequency of episodes of ulceration.
  • 973
  • 17 Oct 2022
Topic Review
Calcium-Activated Potassium Channel
Calcium-activated potassium channels are potassium channels gated by calcium, or that are structurally or phylogenetically related to calcium gated channels. They were first discovered in 1958 by Gardos who saw that Calcium levels inside of a cell could affect the permeability of potassium through that cell membrane. Then in 1970, Meech was the first to observe that intracellular calcium could trigger potassium currents. In humans they are divided into three subtypes large conductance or BK channels, which have very high conductance which range from 100 to 300 pS, intermediate conductance or IK channels, with intermediate conductance ranging from 25 to 100 pS, and small conductance or SK channels with small conductances from 2-25 pS. This family of ion channels is, for the most part, activated by intracellular Ca2+ and contains 8 members in the human genome. However, some of these channels (the KCa4 and KCa5 channels) are responsive instead to other intracellular ligands, such as Na+, Cl−, and pH. Furthermore, multiple members of family are both ligand and voltage activated, further complicating the description of this family. The KCa channel α subunits have six or seven transmembrane segments, similar to the KV channels but occasionally with an additional N-terminal transmembrane helix. The α subunits make homo- and hetero-tetrameric complexes. The calcium binding domain may be contained in the α subunit sequence, as in KCa1, or may be through an additional calcium binding protein such as calmodulin.
  • 973
  • 17 Nov 2022
Biography
Herbert Mataré
Herbert Franz Mataré (22 September 1912 – 2 September 2011[1]) was a Germany physicist. The focus of his research was the field of semiconductor research. His best-known work is the first functional "European" transistor, which he developed and patented together with Heinrich Welker in the vicinity of Paris in 1948, at the same time and independently from the Bell Labs engineers. The final 20
  • 973
  • 12 Dec 2022
Topic Review
Recovery of Antioxidants from Agro-Industrial Side Streams
Agro-industrial side streams covers a wide range of products available as raw materials. These can serve as a source of other added value products, under the nomenclature of biowaste. Food waste are generated from different sectors of food industry, such as vegetables, fruits, milk, meat, fish, and wine production. Recovered compounds can be re-utilized as food additives, functional foods, nutra-/pharmaceuticals, cosmeceuticals, beauty products, and bio-packaging. 
  • 972
  • 20 Sep 2022
Biography
David Tudor Jones
David Tudor Jones (born 1966)[1] is a Professor of Bioinformatics, and Head of Bioinformatics Group in the University College London.[2] He is also the director in Bloomsbury Center for Bioinformatics, which is a joint Research Centre between UCL and Birkbeck, University of London and which also provides bioinformatics training and support services to biomedical researchers. In 2013, he is a mem
  • 972
  • 05 Dec 2022
Topic Review
Salanoia durrelli
Salanoia durrelli, also known as Durrell's vontsira, is a Madagascar mammal in the family Eupleridae of the order Carnivora. It is most closely related to the brown-tailed mongoose (Salanoia concolor), with which it forms the genus Salanoia. The two are genetically similar, but morphologically distinct, leading scientists to recognize them as separate species. After an individual was observed in 2004, the animal became known to science and S. durrelli was described as a new species in 2010. It is found only in the Lac Alaotra area. A small, reddish-brown carnivore, Salanoia durrelli is characterized by broad feet with prominent pads, reddish-buff underparts, and broad, robust teeth, among other differences from the brown-tailed mongoose. In the only two weighed specimens, body mass was 600 and 675 g (21.2 and 23.8 oz). It is a marsh-dwelling animal that may feed on crustaceans and mollusks. The Lac Alaotra area is a threatened ecosystem, and S. durrelli may also be endangered by competition with introduced species.
  • 971
  • 10 Oct 2022
Topic Review
Zebrafish Models for Skeletal Muscle Senescence
Aging and sarcopenic changes in skeletal muscles not only reduce locomotor activities in elderly people but also increase the chance of trauma, such as bone fractures, and the incidence of other diseases, such as metabolic syndrome, due to reduced physical activity.
  • 971
  • 22 Dec 2022
Biography
Thomas Poulter
Thomas Charles Poulter (March 3, 1897 – June 4, 1978) was a scientist and antarctic explorer who worked at the Armour Institute of Technology and SRI International, where he was an associate director.[1] He was born on March 3, 1897 to Micajah Poulter in Salem, Iowa. While he was a physics professor at Iowa Wesleyan College he recognized James Van Allen as a student and put him to work,
  • 968
  • 26 Dec 2022
Biography
D. Allan Bromley
David Allan Bromley (May 4, 1926 – February 10, 2005) was a Canadian-American physicist, academic administrator and Science Advisor to American president George H. W. Bush.[1] His field of research was the study of low-energy nuclear reactions and structure using heavy ion beams. Born in Westmeath, Ontario, Canada, he received a Bachelor of Science in 1949 and a Master of Science in 1950 fr
  • 966
  • 15 Nov 2022
Biography
Paul H. Carr
Paul Henry Carr (born May 12, 1935)[1] is a physicist and researcher. His ten patents have contributed to compact, low-cost filters and signal processing devices for radar, TV, and cell phones. Born in Boston, raised in Cabot and Richford, VT, Carr graduated from Boston Latin School in 1953, earned a B.S. degree in physics in 1957, and a M.S. degree in physics in 1961, both from Massachusetts
  • 966
  • 13 Dec 2022
Biography
Friedrich Bopp
Friedrich Arnold "Fritz" Bopp (27 December 1909 – 14 November 1987) was a Germany theoretical physicist who contributed to nuclear physics and quantum field theory. He worked at the Kaiser-Wilhelm Institut für Physik and with the Uranverein. He was a professor at the Ludwig Maximilian University of Munich and a President of the Deutsche Physikalische Gesellschaft. He signed the Göttingen Man
  • 966
  • 27 Dec 2022
Biography
Annie Beatrice Van Der Biest Thielan Wetmore
Annie Beatrice van der Biest Thielen Wetmore (11 January 1910 – 1 March 1997), widely known as Bea Wetmore, was an American ornithologist and benefactor.[1] She was born Annie Beatrice van der Biest Thielen in 1910 on the Caribbean island of Curaçao, which is a territory of the Netherlands. Bea was a translator conversant in several languages including Dutch, English, Spanish, and Papiame
  • 965
  • 09 Dec 2022
Biography
William Houlder Zachariasen
(Fredrik) William Houlder "Willie" Zachariasen (5 February 1906 – 24 December 1979) was a Norwegian-American physicist, specializing in X-ray crystallography and famous for his work on the structure of glass.[1] Fredrik William Houlder Zachariasen was born in Langesund at Bamble in Telemark, Norway. He entered the University of Oslo in 1923, where he studied in the Mineralogical Institute.
  • 964
  • 12 Dec 2022
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