Cohn Ronald

High Quality Content by WIKIPEDIA articles! Hemimetabolism or hemimetaboly, also called incomplete metamorphosis, is a term used to describe the mode of development of certain insects that includes three distinct stages: the egg, nymph, and the adult stage, or imago. These groups go through gradual changes; there is no pupal stage. The nymph often somewhat resembles the adult stage but lacks wings and functional reproductive organs.

High Quality Content by WIKIPEDIA articles! The United States Maritime Commission was an independent executive agency of the U.S. federal government that was created by the Merchant Marine Act of 1936, passed by Congress on June 29, 1936, and replaced the U.S. Shipping Board which had existed since World War I. It was intended to formulate a merchant shipbuilding program to design and build five hundred modern merchant cargo ships to replace the World War I vintage vessels that comprised the bulk of the U.S. Merchant Marine, and to administer a subsidy system authorized by the Act to offset the cost differential between building in the U.S. and operating ships under the American flag. It also formed the U.S. Maritime Service for the...

High Quality Content by WIKIPEDIA articles! Streptomycin is an antibiotic drug, the first of a class of drugs called aminoglycosides to be discovered, and was the first antibiotic remedy for tuberculosis. It is derived from the actinobacterium Streptomyces griseus. Streptomycin is a bactericidal antibiotic. Streptomycin cannot be given orally, but must be administered by regular intramuscular injections. An adverse effect of this medicine is ototoxicity.

High Quality Content by WIKIPEDIA articles! Space debris, also known as orbital debris, space junk, and space waste, is the collection of objects in orbit around Earth that were created by humans but no longer serve any useful purpose. These objects consist of everything from spent rocket stages and defunct satellites to erosion, explosion and collision fragments. As the orbits of these objects often overlap the trajectories of newer objects, debris is a potential collision risk to operational spacecraft.

High Quality Content by WIKIPEDIA articles! The U.S. Marine Raider Stiletto was a stiletto and combat knife issued to the Marine Raiders and 1st Canadian Parachute Battalion during World War II.

High Quality Content by WIKIPEDIA articles! William Ewart Fairbairn (28 February, 1885–20 June, 1960) was a British soldier, police officer and exponent of hand-to-hand combat method, the close combat, for the Shanghai Police between the world wars, and allied special forces in World War II. He developed his own fighting system known as Defendu, as well as other weapons tactics. Notably, this included innovative pistol shooting techniques and the development of the Fairbairn-Sykes Fighting Knife.

High Quality Content by WIKIPEDIA articles! In the mathematical field of representation theory, a weight of an algebra A over a field F is an algebra homomorphism from A to F – a linear functional – or equivalently, a one dimensional representation of A over F. It is the algebra analogue of a multiplicative character of a group. The importance of the concept, however, stems from its application to representations of Lie algebras and hence also to representations of algebraic and Lie groups. In this context, a weight of a representation is a generalization of the notion of an eigenvalue, and the corresponding eigenspace is called a weight space.

High Quality Content by WIKIPEDIA articles! A heart transplant, or a cardiac transplantation, is a surgical transplant procedure performed on patients with end-stage heart failure or severe coronary artery disease. As of 2007 the most common procedure was to take a working heart from a recently deceased organ donor (cadaveric allograft) and implant it into the patient. The patient`s own heart is either removed (orthotopic procedure) or, less commonly, left in place to support the donor heart (heterotopic procedure); both were controversial solutions to an enduring human ailment. Post-operation survival periods averaged 15 years.

High Quality Content by WIKIPEDIA articles! Rayleigh scattering, named after the British physicist Lord Rayleigh, is the elastic scattering of light or other electromagnetic radiation by particles much smaller than the wavelength of the light. The particles may be individual atoms or molecules. It can occur when light travels through transparent solids and liquids, but is most prominently seen in gases. Rayleigh scattering is a function of the electric polarizability of the particles.

High Quality Content by WIKIPEDIA articles! As defined by IUPAC, rare earth elements or rare earth metals are a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium. Scandium and yttrium are considered rare earth elements since they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties.

High Quality Content by WIKIPEDIA articles! Pannonia was an ancient province of the Roman Empire bounded north and east by the Danube, coterminous westward with Noricum and upper Italy, and southward with Dalmatia and upper Moesia. Pannonia was located over the territory of the present-day western Hungary eastern Austria, northern Croatia, north-western Serbia, Slovenia, western Slovakia and northern Bosnia and Herzegovina.

High Quality Content by WIKIPEDIA articles! In cryptography, a stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream). In a stream cipher the plaintext digits are encrypted one at a time, and the transformation of successive digits varies during the encryption. An alternative name is a state cipher, as the encryption of each digit is dependent on the current state. In practice, a digit is typically a bit and the combining operation an exclusive-or (xor).

High Quality Content by WIKIPEDIA articles! Wakako Yamauchi (born 1924) is a Nisei Asian American female writer. Her plays are considered pioneering works in Asian American theatre.

High Quality Content by WIKIPEDIA articles! William Donald Schaefer (November 2, 1921 – April 18, 2011) was an American politician who served in public office for 50 years at both the state and local level in Maryland. A Democrat, he was mayor of Baltimore from 1971 to 1987, the 58th Governor of Maryland from January 21, 1987 to January 18, 1995, and the Comptroller of Maryland from January 20, 1999 to January 17, 2007. On September 12, 2006, Schaefer was defeated in his reelection bid for Comptroller by Maryland Delegate Peter Franchot in the Democratic Party primary.

High Quality Content by WIKIPEDIA articles! The United States Asiatic Fleet was part of the U.S. Navy. Preceding the World War II era, until 1942, the fleet protected the Philippines.

High Quality Content by WIKIPEDIA articles! Pacific Northwest National Laboratory (PNNL) is one of the United States Department of Energy National Laboratories, managed by the Department of Energy`s Office of Science. The main campus of the laboratory is in Richland, Washington.

High Quality Content by WIKIPEDIA articles! A wedding cake is the traditional cake served to the guests at a wedding reception (or in parts of England, at a wedding breakfast) after a wedding. In modern Western culture, it is usually a large cake, multi-layered or tiered, and heavily decorated with icing, usually over a layer of marzipan or fondant. Achieving a dense, strong cake that can support the decorations while remaining edible can be considered the epitome of the baker`s art and skill. The average cost of a professionally made wedding cake in the U.S. in 2005 was $543.

High Quality Content by WIKIPEDIA articles! WrestleMania XIX was the nineteenth annual WrestleMania professional wrestling pay-per-view (PPV) event produced by World Wrestling Entertainment (WWE). It took place on March 30, 2003 at Safeco Field in Seattle, Washington. The event was the first WrestleMania held in the state of Washington, and the first Wrestlemania to use the WWE name. A record-breaking 54,097 fans from all fifty states and numerous countries from around the world at Safeco Field resulted in a gate attendance grossing US$2.76 million.

High Quality Content by WIKIPEDIA articles! William Clay Ford, Sr. (born March 14, 1925) is the youngest of the four children of Edsel Ford and the youngest grandchild of Henry Ford.

High Quality Content by WIKIPEDIA articles! A title is a prefix or suffix added to someone`s name to signify either veneration, an official position or a professional or academic qualification. In some languages, titles may even be inserted between a first and last name (for example, Graf in German, Cardinal in Catholic usage or clerical titles such as Archbishop). Some titles are hereditary.

High Quality Content by WIKIPEDIA articles! In sociolinguistics, a sociolect or social dialect is a variety of language (a dialect) associated with a social group such as a socioeconomic class, an ethnic group, an age group, etc.