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H. Radclyffe Roberts
Howard Radclyffe Roberts Jr. (March 26, 1906 – June 11, 1982) was an American entomologist known for his work on grasshoppers. His 1941 University of Pennsylvania Ph.D. dissertation was an early work highlighting the role phallic structures could play in grasshopper taxonomy. While serving in World War II, he and Edward Shearman Ross cowrote ''The Mosquito Atlas'', used by the armed forces to identify malaria-transmitting mosquitos. Roberts worked for the Academy of Natural Sciences of Philadelphia (ANSP), serving as its managing director from 1947 to 1972. He described dozens of grasshopper species from North and South America, and also is the eponym of several taxa named in his honor. Early life and education Roberts was born on March 26, 1906, in Villanova, Pennsylvania, into an upper-class Philadelphia family. His parents were Howard Radclyffe Roberts (son of the sculptor Howard Roberts) and Eleanor Page Roberts (née Butcher); he was one of four sons. He attended Haverfo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruth Patrick
Ruth (or its variants) may refer to: Places France * Château de Ruthie, castle in the commune of Aussurucq in the Pyrénées-Atlantiques département of France Switzerland * Ruth, a hamlet in Cologny United States * Ruth, Alabama * Ruth, Arkansas * Ruth, California * Ruth, Louisiana * Ruth, Pulaski County, Kentucky * Ruth, Michigan * Ruth, Mississippi * Ruth, Nevada * Ruth, North Carolina * Ruth, Virginia * Ruth, Washington * Ruth, West Virginia In space * Ruth (lunar crater), crater on the Moon * Ruth (Venusian crater), crater on Venus * 798 Ruth, asteroid People * Ruth (biblical figure) * Ruth (given name) contains list of namesakes including fictional * Princess Ruth or Keʻelikōlani, (1826–1883), Hawaiian princess Surname * A. S. Ruth, American politician * Babe Ruth (1895–1948), American baseball player * Connie Ruth, American politician * Earl B. Ruth (1916–1989), American politician * Elizabeth Ruth, Canadian novelist * Kristin Ruth, American judge * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ornithology
Ornithology is a branch of zoology that concerns the "methodological study and consequent knowledge of birds with all that relates to them." Several aspects of ornithology differ from related disciplines, due partly to the high visibility and the aesthetic appeal of birds. It has also been an area with a large contribution made by amateurs in terms of time, resources, and financial support. Studies on birds have helped develop key concepts in biology including evolution, behaviour and ecology such as the definition of species, the process of speciation, instinct, learning, ecological niches, guilds, island biogeography, phylogeography, and conservation. While early ornithology was principally concerned with descriptions and distributions of species, ornithologists today seek answers to very specific questions, often using birds as models to test hypotheses or predictions based on theories. Most modern biological theories apply across life forms, and the number of scientists w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Quarterly Review Of Biology
''The Quarterly Review of Biology'' is a peer-reviewed scientific journal covering all aspects of biology. It was established in 1926 by Raymond Pearl. In the 1960s it was purchased by the Stony Brook Foundation when the editor H. Bentley Glass became academic vice president of Stony Brook University. The editor-in-chief is Daniel E. Dykhuizen (Stony Brook University). It is currently published by the University of Chicago Press. Aims and scope The journal publishes review articles. Beyond the core biological sciences, the journal also covers related areas, including policy studies and the history and philosophy of science. There is also a book review section. Abstracting and indexing The journal is abstracted and indexed in Biological Abstracts, BIOSIS Previews, and the Science Citation Index The Science Citation Index Expanded – previously entitled Science Citation Index – is a citation index originally produced by the Institute for Scientific Information (ISI) and creat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Matheson (entomologist)
Robert Matheson (1881, West River, Nova Scotia – 1958, Princeton, New Jersey) was an American entomologist who specialised in Coleoptera. He was Professor of Entomology, New York State College of Agriculture, Cornell University Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to teach an .... Works Partial list *''Entomology for introductory courses'' Comstock Publishing Co. (1944) *''Medical Entomology'' Comstock Publishing Co. (1932) References *Anonym 1959 atheson, R.' Bull. ent. Soc. Amer''. 5 51 *Mallis, A. 1971 ''American Entomologists''. Rutgers Univ. Press New Brunswick 478–479, Portrait *Osborn, H. 1937 ''Fragments of Entomological History Including Some Personal Recollections of Men and Events''. Columbus, Ohio, Published by the Author 1 1–394. {{DEFAULTSORT:Matheson, Robe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loose Leaf
A loose leaf is a piece of paper of any kind that is not bound in place, or available on a continuous roll, and may be punched so as to be organized in a ring binder. Loose leaf paper may be sold as free sheets, or made up into notepads, where perforations or glue allow them to be removed easily. "Leaf" in many languages refers to a sheet or page of paper, as in Folio, ''as in feuille de papier'' (French), ''hoja de papel'' (Spanish), ''foglio di carta'' (Italian). Description "Loose leaf" describes any kind of paper or book that is available in single sheets, unbound. Its "leaves", or sheets, are "loose" and not bound in notebook or book form. ''However'', it seems "loose leaf" in the USA's Midwest (and this entry) refers most specifically to a lined and punched paper, or ruled paper, a school supply also known as "binder paper" that can be sorted in a loose leaf binder. This may be a typical 3 ring binder but "loose leaves" of other types can also go in a date book, address bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Entomological Society
The American Entomological Society was founded on March 1, 1859. It is the oldest continuously operating entomology society in the Western Hemisphere, and one of the oldest scientific societies in the United States. It is headquartered in Philadelphia, Pennsylvania. The society publishes ''Entomological News'', ''Transactions of the American Entomological Society'', and ''Memoirs of the American Entomological Society''. It is not affiliated in any way with the similarly named Entomological Society of America. See also *List of entomology journals The following is a list of entomological Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of ani ... References External linksAmerican Entomological Society [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Major (United States)
In the United States Army, U.S. Marine Corps, U.S. Air Force and U.S. Space Force, major is a field-grade military officer rank above the rank of captain and below the rank of lieutenant colonel. It is equivalent to the naval rank of lieutenant commander in the other uniformed services. Although lieutenant commanders are considered junior officers by their respective services (Navy and Coast Guard), the rank of major is that of a senior officer in the United States Army, the United States Marine Corps, and the United States Air Force. The pay grade for the rank of major is O-4. The insignia for the rank consists of a golden oak leaf, with slight stylized differences between the Army/Air Force version and the Marine Corps version. Promotion to major is governed by the Department of Defense policies derived from the Defense Officer Personnel Management Act of 1980. Army A major in the U.S. Army typically serves as a battalion executive officer (XO) or as the battalion operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sclerite
A sclerite (Greek , ', meaning "hard") is a hardened body part. In various branches of biology the term is applied to various structures, but not as a rule to vertebrate anatomical features such as bones and teeth. Instead it refers most commonly to the hardened parts of arthropod exoskeletons and the internal spicules of invertebrates such as certain sponges and soft corals. In paleontology, a scleritome is the complete set of sclerites of an organism, often all that is known from fossil invertebrates. Sclerites in combination Sclerites may occur practically isolated in an organism, such as the sting of a cone shell. Also, they can be more or less scattered, such as tufts of defensive sharp, mineralised bristles as in many marine Polychaetes. Or, they can occur as structured, but unconnected or loosely connected arrays, such as the mineral "teeth" in the radula of many Mollusca, the valves of Chitons, the beak of Cephalopod, or the articulated exoskeletons of Arthropoda. When ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proceedings Of The Academy Of Natural Sciences Of Philadelphia
The ''Proceedings of the Academy of Natural Sciences of Philadelphia'' is a peer-reviewed scientific journal published by Academy of Natural Sciences of Drexel University The Academy of Natural Sciences of Drexel University, formerly the Academy of Natural Sciences of Philadelphia, is the oldest natural science research institution and museum in the Americas. It was founded in 1812, by many of the leading natura ... since 1841. References External links Publications established in 1841 Academic journals published in the United States Drexel University {{sci-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morgan Hebard
Morgan Hebard (February 23, 1887 – December 28, 1946) was an American entomologist who specialized in orthoptera, and assembled a collection of over 250,000 specimens. Early life and education Morgan Hebard was born on February 23, 1887, in Cleveland, Ohio to Hannah Jeanette (née Morgan) and Charles Samuel Hebard. His father had a lumber manufacturing business in Pequaming, Michigan named ''Charles Hebard and Sons'', where he had co-developed a saw-mill and associated company town. Later, his father established the ''Hebard Cypress Company'', which constructed the Wikipedia:WikiProject Trains/ICC valuations/Waycross and Southern Railroad, Waycross and Southern Railroad specifically to harvest the cypress trees in the Okefenokee Swamp. The family also had houses in Thomasville, Georgia and Chestnut Hill, Philadelphia, Pennsylvania. Hebard attended Asheville School in North Carolina, educated by a private tutor, before graduating from Yale University in 1910. At Yale, Hebard won p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarence Erwin McClung
Clarence Erwin McClung (April 5, 1870 – January 17, 1946) was an eminent United States, American zoologist and prairie pioneer cytologist who discovered the role of chromosomes in Sex-determination system, sex-determination. Graduating pharmacy at the University of Kansas in 1892, after a year of teaching he entered the college as a graduate student (A.B.,1896, A.M.,1898, and Ph.D.,1902.) He studied one summer with W.M. Wheeler at the University of Chicago and at his suggestion, studied the spermatogenesis of Ziphidium fasciatum, a long-horned grasshopper; launching his scientific career in the research of chromosomes. McClung took advantage of the great abundance of grasshoppers in Kansas ''"to make them pivotal for cytological study and to found a school of grasshopper cytologists''." Later, the use of Brachystola magna ("Lubber" grasshopper) for cytological studies would spread to laboratories throughout the world, as germ-cells in the testes were very large and easily studi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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