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SPR Wisla Plock Logo
SPR can refer to: Media and entertainment *''Self-Publishing Review'', an online book review magazine for independent authors Businesses and organizations *''Sistema Público de Radiodifusión del Estado Mexicano'', a Mexican public broadcaster * Society for Psychical Research, founded in 1882 * Software Productivity Research, a software benchmarking company *Former São Paulo Railway Company, Brazil *Spirit AeroSystems, Wichita, Kansas, US, NYSE symbol *South Persia Rifles, British-commanded unit 1916-1921 *''Suruhanjaya Pilihan Raya Malaysia'' (Election Commission of Malaysia) Places *San Pedro Airport, Belize. IATA code Science and technology Computer science *Subtree pruning and regrafting, a method in computational phylogenetics *Single particle reconstruction (or analysis), image processing techniques for transmission electron microscopy Biology and medicine *SPR, a human gene which codes for the enzyme sepiapterin reductase * Specialist registrar (SpR), physician po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-Publishing Review
''Skdoit'' is an online book review magazine for indie authors founded in 2008 by American author Henry Baum. Overview ''Self-Publishing Review'' is a daily online report of indie book reviews, articles, and news related to the self-publishing Self-publishing is the publication of media by its author at their own cost, without the involvement of a publisher. The term usually refers to written media, such as books and magazines, either as an ebook or as a physical copy using POD (pr ... industry. ''Self-Publishing Review'' is a self-publishing portal, featured in '' The Guardian'' newspaper, The Huffington Post, Writer's Digest and Forbes. SPR has partnered with BookBaby, the literary sister company to CDBaby as a provider of author services. Self-Publishing Review's annual writing contest, ''The SPR Book Awards'', was started in 2014. It awards prizes in small press and independent authorship. References External links * {{Official website, http://www.selfpubl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission Electron Microscope
Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is most often an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. The image is then magnified and focused onto an imaging device, such as a fluorescent screen, a layer of photographic film, or a sensor such as a scintillator attached to a charge-coupled device. Transmission electron microscopes are capable of imaging at a significantly higher resolution than light microscopes, owing to the smaller de Broglie wavelength of electrons. This enables the instrument to capture fine detail—even as small as a single column of atoms, which is thousands of times smaller than a resolvable object seen in a light microscope. Transmission electron microscopy is a major analytical method in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sapper
A sapper, also called a pioneer (military), pioneer or combat engineer, is a combatant or soldier who performs a variety of military engineering duties, such as breaching fortifications, demolitions, bridge-building, laying or clearing minefields, preparing field defenses, and road and airfield construction and repair. They are also trained and equipped to serve as provisional infantry, fighting as such as a secondary mission. A sapper's duties facilitate and support movement, defense, and survival of allied forces and impede those of enemies. The term "sapper" is used in the British Army and Commonwealth of Nations, Commonwealth nations and the U.S. military. The word "sapper" comes from the French word ''sapeur'', itself being derived from the verb ''saper'' (to undermine, to dig under a wall or building to cause its collapse). Historical origin Sapping A sapper, in the sense first used by the French military, was one who dug trenches to allow besieging forces to advance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Plasmon Resonance
Surface plasmon resonance (SPR) is the resonant oscillation of conduction electrons at the interface between negative and positive permittivity material in a particle stimulated by incident light. SPR is the basis of many standard tools for measuring adsorption of material onto planar metal (typically gold or silver) surfaces or onto the surface of metal nanoparticles. It is the fundamental principle behind many color-based biosensor applications and lab-on-a-chip sensors. It should be stressed that SPR is not a resonance on the planar surface and it is a polariton or surface-wave like phenomenon. Explanation The surface plasmon polariton is a non-radiative electromagnetic surface wave that propagates in a direction parallel to the negative permittivity/dielectric material interface. Since the wave is on the boundary of the conductor and the external medium (air, water or vacuum for example), these oscillations are very sensitive to any change of this boundary, such as the adso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mk 12 Special Purpose Rifle
The United States Navy Mk 12 MOD 0/1/H Special Purpose Rifle (SPR) is a designated marksman rifle that was in service with United States Special Operations Forces in the designated marksman role until 2017, also designed to be shorter than standard weapons. SPR initially stood for ''Special Purpose Receiver'' as it referred to an add-on upper receiver assembly (part of the proposed SOPMOD upgrades), but that nomenclature changed to ''Special Purpose Rifle'' as the weapon became a stand-alone weapons system. The SPR was eventually type-classified by the U.S. Navy as the Mk 12. The weapon was developed by the Naval Surface Warfare Center Crane Division for US special operations units, not for Navy units in general. History The SPR, used by Special Operations Forces of both the U.S. Army and U.S. Navy, is a heavily modified light designated marksman variation of the M16 line of infantry weapons, chambered for NATO standard 5.56×45mm ammunition.The rifle is designed to fire semi- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FN Special Police Rifle
The FN Special Police Rifle (FN SPR) is a bolt-action sniper rifle marketed by FNH USA, a subsidiary of the Belgian company FN Herstal. Design details The rifle is manufactured at the U.S. Repeating Arms Company (owned by FN de Herstal) to FN specifications using Winchester Model 70 actions. All current models of the SPR come in one of a variety of McMillan synthetic stocks. The earliest rifles were shipped in the H-S Precision aluminum chassis fiberglass version of the Winchester Marksman stock. While these "First Generation" rifles were simply dropped into the aluminum bedding blocks of the H-S Precision stock, the later guns are all glass bedded by hand. FN Special Police Rifles of all iterations are noted for being both very accurate (0.5 MOA or somewhat less is not uncommon) and very low maintenance, featuring Parkerized metal finish, synthetic stocks, and a chrome-lined bore in the barrel. A chrome-lined bore offers a more durable, more corrosion resistant, and easier-t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Society For Psychotherapy Research
A society is a group of individuals involved in persistent social interaction, or a large social group sharing the same spatial or social territory, typically subject to the same political authority and dominant cultural expectations. Societies are characterized by patterns of relationships ( social relations) between individuals who share a distinctive culture and institutions; a given society may be described as the sum total of such relationships among its constituent of members. In the social sciences, a larger society often exhibits stratification or dominance patterns in subgroups. Societies construct patterns of behavior by deeming certain actions or concepts as acceptable or unacceptable. These patterns of behavior within a given society are known as societal norms. Societies, and their norms, undergo gradual and perpetual changes. Insofar as it is collaborative, a society can enable its members to benefit in ways that would otherwise be difficult on an indivi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Specialist Registrar
A specialist registrar (SpR) is a doctor in the United Kingdom or the Republic of Ireland who is receiving advanced training in a specialist field of medicine in order to become a consultant in that specialty. After graduation from medical school, a specialist registrar will undertake several years of work and training as an intern or pre-registration house officer, and as a senior house officer. It may be required to take diploma examinations in order to enter registrar training. These are administered by the medical royal college or in some cases a separate postgraduate training body responsible for that specialty and are usually termed "memberships". This means membership to the Royal College of their specialty. For example, those wishing to specialise in general medicine must take the examination for Membership of the Royal College of Physicians. Doctors will work in specialist registrar posts for around four to six years, depending on their speciality. They gain experience ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sepiapterin Reductase
Sepiapterin reductase is an enzyme that in humans is encoded by the ''SPR'' gene. Function Sepiapterin reductase (7,8-dihydrobiopterin:NADP+ oxidoreductase; EC 1.1.1.153) catalyzes the NADPH-dependent reduction of various carbonyl substances, including derivatives of pteridines, and belongs to a group of enzymes called aldo-keto reductases. SPR plays an important role in the biosynthesis of tetrahydrobiopterin. Reaction Sepiapterin reductase (SPR) catalyzes the chemical reaction L-erythro-7,8-dihydrobiopterin + NADP+ \rightleftharpoons sepiapterin + NADPH + H+ Thus, the two substrates of this enzyme are L-erythro-7,8-dihydrobiopterin and NADP+, whereas its three products are sepiapterin, NADPH, and a single hydrogen ion (H+). This enzyme belongs to the family of oxidoreductases, to be specific, those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 7,8-dihydrobiopterin:NADP+ oxidoreductase. This enzyme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single Particle Analysis
Single particle analysis is a group of related computerized image processing techniques used to analyze images from transmission electron microscopy (TEM). These methods were developed to improve and extend the information obtainable from TEM images of particulate samples, typically proteins or other large biological entities such as viruses. Individual images of stained or unstained particles are very noisy, and so hard to interpret. Combining several digitized images of similar particles together gives an image with stronger and more easily interpretable features. An extension of this technique uses single particle methods to build up a three-dimensional reconstruction of the particle. Using cryo-electron microscopy it has become possible to generate reconstructions with sub-nanometer resolution and near-atomic resolution first in the case of highly symmetric viruses, and now in smaller, asymmetric proteins as well. Single particle analysis can also be performed by induced coup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sistema Público De Radiodifusión Del Estado Mexicano
The ''Sistema Público de Radiodifusión del Estado Mexicano'' (Mexican State Public Broadcasting System, abbreviated SPR) until 2014, is an independent Mexican government agency. Its mission is to support the development of public broadcasting in the country and expand its coverage. It carries out this goal through ownership of a nationwide network of transmitters and the management of its own public television channel, Canal Catorce. It also owns four radio transmitters. History By 2010, two major public television stations existed in Mexico: the National Polytechnic Institute's Once TV and Conaculta's Canal 22. The National Autonomous University in Mexico also operated low-powered test broadcaster XHUNAM-TDT channel 20 and the TV UNAM pay-TV network. However, not all of these stations, especially Canal 22 and TV UNAM, had national coverage outside of pay television services. None of them had a general national reach above 30%. The only national public television transmitters o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subtree Pruning And Regrafting
Tree rearrangements are deterministic algorithms devoted to searching for an optimal tree structure. They can be applied to any set of data that are naturally arranged into a tree, but have most applications in computational phylogenetics, especially in maximum parsimony and maximum likelihood searches of phylogenetic trees, which seek to identify one among many possible trees that best explains the evolutionary history of a particular gene or species. Basic tree rearrangements Image:NNI.svg, Nearest neighbor interchange (NNI) Image:SPR.svg, Subtree pruning and regrafting (SPR) Image:TBR.svg, Tree bisection and reconnection (TBR) The simplest tree-rearrangement, known as nearest-neighbor interchange, exchanges the connectivity of four subtrees within the main tree. Because there are three possible ways of connecting four subtrees,Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA. and one is the original connectivity, each interchange creates two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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