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Database normalization is the process of structuring a database, usually a relational database, in accordance with a series of so-called normal forms in order to reduce data redundancy and improve data integrity. It was first proposed by Edgar F. Codd as part of his relational model.
The Graphics Interchange Format is a bitmap image format that was developed by a team at the online services provider CompuServe led by American computer scientist Steve Wilhite on 15 June 1987. It has since come into widespread usage on the World Wide Web due to its wide support and portability between applications and operating systems.
A hash function is any function that can be used to map data of arbitrary size to fixed-size values. The values returned by a hash function are called hash values, hash codes, digests, or simply hashes. The values are usually used to index a fixed-size table called a hash table. Use of a hash function to index a hash table is called hashing or scatter storage addressing.
ISO 4217 is a standard published by International Organization for Standardization (ISO) that defines alpha codes and numeric codes for the representation of currencies and provides information about the relationships between individual currencies and their minor units. This data is published in three tables:
The Mohs scale of mineral hardness is a qualitative ordinal scale characterizing scratch resistance of various minerals through the ability of harder material to scratch softer material. Created in 1822 by German geologist and mineralogist Friedrich Mohs, it is one of several definitions of hardness in materials science, some of which are more quantitative.
The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows periodic trends. The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. The columns, called groups, contain elements with similar chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases. Also displayed are four simple rectangular areas or blocks associated with the filling of different atomic orbitals.
The United States had an estimated population of 332,410,303 in 2021 according to United Nations data. According to the U.S. Census Bureau, the United States had an estimated population of 328,239,523 in 2019. The United States is the third most populous country in the world, and current projections from the unofficial U.S. Population Clock show a total of just over 330 million residents. All these figures exclude the population of five self-governing U.S. territories as well as several minor island possessions. The Census Bureau showed a population increase of 0.75% for the twelve-month period ending in July 2012. Though high by industrialized country standards, this is below the world average annual rate of 1.1%. The total fertility rate in the United States estimated for 2019 is 1.706 children per woman, which is below the replacement fertility rate of approximately 2.1.
In crystallography, the terms crystal system, crystal family, and lattice system each refer to one of several classes of space groups, lattices, point groups, or crystals. Informally, two crystals are in the same crystal system if they have similar symmetries, although there are many exceptions to this.
A neuroeffector junction is a site where a motor neuron releases a neurotransmitter to affect a target—non-neuronal—cell. This junction functions like a synapse. However, unlike most neurons, somatic efferent motor neurons innervate skeletal muscle, and are always excitatory. Visceral efferent neurons innervate smooth muscle, cardiac muscle, and glands, and have the ability to be either excitatory or inhibitory in function. Neuroeffector junctions are known as neuromuscular junctions when the target cell is a muscle fiber.
James Solomon "Big Jim" Nance was an American professional football player who was a fullback with the Boston Patriots during their days in the American Football League (AFL). He was inducted into the Patriots Hall of Fame in 2009. He played college football for the Syracuse Orangemen.
A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time a database table is accessed. Indexes can be created using one or more columns of a database table, providing the basis for both rapid random lookups and efficient access of ordered records.
The internal anal sphincter, IAS, is a ring of smooth muscle that surrounds about 2.5–4.0 cm of the anal canal; its inferior border is in contact with, but quite separate from, the external anal sphincter. It is myogenic in nature and playing phasic and tonic state for relaxation and contraction. This myogenic tone is based on Ca2+/Calmodulin/MLCK/RhoA/ROCK signaling cascade pathway. Recent studies suggested, BDNF is the member of the neurotrophin family; having next target for basal IAS and NANC relaxation.
Qiandongnan Miao and Dong Autonomous Prefecture, also known as Southeast Qian Autonomous Prefecture of Miao and Dong and can be shortened as S.E. Qian Prefecture, is an autonomous prefecture in the southeast of Guizhou province in the People's Republic of China, bordering Hunan to the east and Guangxi to the south. The seat of the prefecture is Kaili. Qiandongnan has an area of 30,337 km2 (11,713 sq mi).
The West Midlands (Regional) League is an English association football competition for semi-professional and amateur teams based in the West Midlands county, Shropshire, Worcestershire and southern Staffordshire. It has three divisions, the highest of which is the Premier Division, which sits at step 6 of the National League System, or the tenth level of the overall English football league system.
The IBSF World Championships, part of the International Bobsleigh and Skeleton Federation, have taken place on an annual basis since 1930. Starting with 2002, championships of non-Winter Olympic years have not been held. A two-man event was included in 1931 with a combined championship occurring in 1947. Men's skeleton was introduced as a championship of its own in 1982 while women's bobsleigh and skeleton events were introduced in 2000. Both the women's bobsleigh and skeleton events were merged with the men's bobsleigh events at the 2004 championships. A mixed team event, consisting of one run each of men's skeleton, women's skeleton, 2-man bobsleigh, and 2-women bobsleigh debuted in 2007.
The St. John's Episcopal Church in Abilene, Kansas, is a historic church at 519 N. Buckeye Avenue. It was built in about 1939 and added to the National Register of Historic Places] in 2001.
Resia Boroboedoer is a 1929 adventure film produced by Nancing Film Corp. Starring Chinese actress Olive Young, it followed a young woman on her quest to find Gautama Buddha's ashes in the temple of Borobudur. The production cost of the film, which was panned, led to the collapse of its studio.
Les Trois-Châteaux is a commune in the Jura department of eastern France. The municipality was established on 1 April 2016 by the merger of the former communes of L'Aubépin, Chazelles and Nanc-lès-Saint-Amour. On 1 January 2019, the former commune Saint-Jean-d'Étreux was merged into Les Trois-Châteaux.
The John W. Birchmore House in Abilene, Kansas was built in 1878. It was listed on the National Register of Historic Places in 2014.
References
- 1 2 Unless else specified in table, then ref is: Rang, H. P. (2003). Pharmacology. Edinburgh: Churchill Livingstone. ISBN 0-443-07145-4. Page 132