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NAD
NAD or Nad may refer to: Geography * Nad, County Cork, a village in Ireland * North American Datum, a series of geographic coordinate systems * North Atlantic Drift, an Atlantic Ocean current * Hobli, a subdivision of a taluka in southern India Organizations * National Academy of Design * NAD Electronics, a Canadian audio equipment manufacturer (originally New Acoustic Dimension) * National Advertising Division, the Council of Better Business Bureaus in the United States and Canada * National Appeals Division, an agency within the United States Department of Agriculture * National Association of the Deaf (other), one of several associations for deaf people * Norwegian Association of the Disabled Science, medicine and technology * Na D, a spectroscopic line due to sodium * Network Access Device, a device in mobile phones that finds the shortest route for a connection * Nicotinamide adenine dinucleotide Nicotinamide adenine dinucleotide (NAD) is a Cofacto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicotinamide Adenine Dinucleotide
Nicotinamide adenine dinucleotide (NAD) is a Cofactor (biochemistry), coenzyme central to metabolism. Found in all living cell (biology), cells, NAD is called a dinucleotide because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine nucleobase and the other, nicotinamide. NAD exists in two forms: an Redox, oxidized and reduced form, abbreviated as NAD and NADH (H for hydrogen), respectively. In cellular metabolism, NAD is involved in redox reactions, carrying electrons from one reaction to another, so it is found in two forms: NAD is an oxidizing agent, accepting electrons from other molecules and becoming reduced; with H+, this reaction forms NADH, which can be used as a reducing agent to donate electrons. These electron transfer reactions are the main function of NAD. It is also used in other cellular processes, most notably as a substrate (biochemistry), substrate of enzymes in adding or removing chemical groups to or fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Datum
The North American Datum (NAD) is the Geodetic datum#Horizontal datum, horizontal datum now used to define the Geodesy, geodetic network in North America. A datum is a formal description of the shape of the Earth along with an "anchor" point for the coordinate system. In surveying, cartography, and land-use planning, two North American Datums are in use for making lateral or "horizontal" measurements: the North American Datum of 1927 (NAD 27) and the North American Datum of 1983 (NAD 83). Both are geodetic reference systems based on slightly different assumptions and measurements. Vertical measurements, based on distances above or below Mean High Water (MHW), are calculated using the North American Vertical Datum of 1988 (NAVD 88). NAD 83, along with NAVD 88, is set to be replaced with a new GPS- and gravimetric geoid model-based geometric reference frame and geopotential datum, potentially Datum of 2022, in 2025. First North American Datum of 1901 In 1901 the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NAD Electronics
NAD Electronics (New Acoustic Dimension) is a brand name of an electronics firm whose products include home hi-fi amplifiers and related components. In 1972, the company was founded in London by Dr. Martin L. Borish, an electrical engineer with a PhD in physics.Lyons, Daniel"Digital Dislocation" ''Forbes'', 10 May 2004Cf. NAD company website Its most famous product is the late-1970s '' NAD 3020'', an integrated amplifier designed by Bjørn Erik Edvardsen, which was highly regarded by various magazines in Britain. NAD was one of the first audio manufacturers to outsource the manufacturing of its products to electronics factories in East Asia. NAD was acquired by the Danish firm AudioNord in 1991 and subsequently sold in 1999 to the Lenbrook Group of Pickering, Ontario, Canada. Power-supply design NAD focuses on the concept of effective power, potentially enabling delivery of dynamic power bursts far in excess of their rated RMS power. The key to this feature requires us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Appeals Division
The National Appeals Division (NAD) of USDA was established by the Department of Agriculture Reorganization Act of 1994 (Title II of P.L. 103-354) to consolidate and improve the hearing procedures for USDA claims and disputes. The statute and regulations provide that certain sections of the Administrative Procedure Act (APA) (P.L. 79-404, as amended), including the hearing requirements, do not apply to NAD proceedings. The NAD procedures govern informal and formal hearings covering appeals of decisions made by the rural development agencies, Natural Resources Conservation Service, Risk Management Agency, and the Farm Service Agency The Farm Service Agency (FSA) is the United States Department of Agriculture agency that was formed by merging the farm loan portfolio and staff of the Farmers Home Administration (FmHA) and the Agricultural Stabilization and Conservation Service .... The statute and regulations set forth the procedures for hearings, requirements for the presiding o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namibian Dollar
The Namibia dollar (currency symbol, symbol: $ or N$; ISO 4217, code: NAD) has been the currency of Namibia since 1993. It is normally abbreviated with the dollar sign ($), or alternatively N$ to distinguish it from other currencies called “dollar.” It is divided into 100 cent (currency), cents. History The dollar replaced the South African rand, which had been the country's currency while it was under South African rule as South-West Africa from 1920 until 1990, at par. The rand is still legal tender, as the Namibian dollar is Fixed exchange rate system, linked to the South African rand and can be exchanged on a one-to-one basis locally. Namibia was also part of the Common Monetary Area from independence in 1990 until the introduction of the dollar in 1993. In the beginning, alternative names for the Namibian dollar were suggested, including ''Namibian kalahar'', referencing the Kalahari Desert in the east of Namibia, but ultimately the government settled on the name ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Organization
Nuclear organization refers to the spatial organization and dynamics of chromatin within a cell nucleus during interphase. There are many different levels and scales of nuclear organization. At the smallest scale, DNA is packaged into units called nucleosomes, which compacts DNA about 7-fold. In addition, nucleosomes protect DNA from damage and carry epigenetic information. Positions of nucleosomes determine accessibility of DNA to transcription factors. At the intermediate scale, DNA looping can physically bring together DNA elements that would otherwise be separated by large distances. These interactions allow regulatory signals to cross over large genomic distances—for example, from enhancers to promoters. At a larger scale, chromosomes are organized into two compartments labelled A ("active") and B ("inactive"), which are further subdivided into sub-compartments. At the largest scale, entire chromosomes segregate into distinct regions called chromosome terr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Academy Of Design
The National Academy of Design is an honorary association of American artists, founded in New York City in 1825 by Samuel Morse, Asher Durand, Thomas Cole, Frederick Styles Agate, Martin E. Thompson, Charles Cushing Wright, Ithiel Town, and others "to promote the fine arts in America through instruction and exhibition." Membership is limited to 450 American artists and architects, who are elected by their peers on the basis of recognized excellence. History The original founders of the National Academy of Design were students of the American Academy of the Fine Arts. However, by 1825 the students of the American Academy felt a lack of support for teaching from the academy, its board composed of merchants, lawyers, and physicians, and from its unsympathetic president, the painter John Trumbull. Samuel Morse and other students set about forming a drawing association to meet several times each week for the study of the art of design. Still, the association was viewed as a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physical Exam
In a physical examination, medical examination, clinical examination, or medical checkup, a medical practitioner examines a patient for any possible medical signs or symptoms of a medical condition. It generally consists of a series of questions about the patient's medical history followed by an examination based on the reported symptoms. Together, the medical history and the physical examination help to determine a diagnosis and devise the treatment plan. These data then become part of the medical record. Types Routine The ''routine physical'', also known as ''general medical examination'', ''periodic health evaluation'', ''annual physical'', ''comprehensive medical exam'', ''general health check'', ''preventive health examination'', ''medical check-up'', or simply ''medical'', is a physical examination performed on an asymptomatic patient for medical screening purposes. These are normally performed by a pediatrician, family practice physician, a physical therapist, ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nad, County Cork
Nad or Nadd () is a small village in the south-east of the Barony (Ireland), barony of Duhallow, in north County Cork, Republic of Ireland, Ireland. It is located on the Kanturk to Cork route (R579 road (Ireland), R579) in the foothills of the Boggeragh Mountains, at the confluence of the Nadd and Glen Rivers. The population of the village and surrounding areas is approximately 170 people. The population has been increasing over a number of years, with many young families now living in the area. Nad is located within the Cork North-West (Dáil constituency) and is part of the traditional home of the O'Keeffe clan. See also * List of towns and villages in the Republic of Ireland, List of towns and villages in Ireland References Towns and villages in County Cork {{Cork-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noradrenalin
Norepinephrine (NE), also called noradrenaline (NA) or noradrenalin, is an organic chemical in the catecholamine family that functions in the brain and body as a hormone, neurotransmitter and neuromodulator. The name "noradrenaline" (from Latin '' ad'', "near", and '' ren'', "kidney") is more commonly used in the United Kingdom and the rest of the world, whereas "norepinephrine" (from Ancient Greek ἐπῐ́ (''epí''), "upon", and νεφρός (''nephrós''), "kidney") is usually preferred in the United States. "Norepinephrine" is also the international nonproprietary name given to the drug. Regardless of which name is used for the substance itself, parts of the body that produce or are affected by it are referred to as noradrenergic. The general function of norepinephrine is to mobilize the brain and body for action. Norepinephrine release is lowest during sleep, rises during wakefulness, and reaches much higher levels during situations of stress or danger, in the so- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Association Of The Deaf (other)
National Association of the Deaf may refer to: * National Association of the Deaf (Italy) * National Association of the Deaf (India) * National Association of the Deaf (United States) The National Association of the Deaf (NAD) is an organization for the promotion of the rights of deaf people in the United States. NAD was founded in Cincinnati, Ohio, in 1880 as a non-profit organization run by Deaf people to advocate for deaf r ... * National Deaf Federation Nepal {{Disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Na D
The Fraunhofer lines are a set of spectral absorption lines. They are dark absorption lines, seen in the optical spectrum of the Sun, and are formed when atoms in the solar atmosphere absorb light being emitted by the solar photosphere. The lines are named after German physicist Joseph von Fraunhofer, who observed them in 1814. Discovery In 1802, English chemist William Hyde WollastonMelvyn C. UsselmanWilliam Hyde WollastonEncyclopædia Britannica, retrieved 31 March 2013 was the first person to note the appearance of a number of dark features in the solar spectrum. In 1814, Joseph von Fraunhofer independently rediscovered the lines and began to systematically study and measure their wavelengths. He mapped over 570 lines, designating the most prominent with the letters A through K and weaker lines with other letters. Modern observations of sunlight can detect many thousands of lines. About 45 years later, Gustav Kirchhoff and Robert Bunsen noticed that several Fraunhofer line ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
