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Bridging Population
Bridging may refer to: Construction * Building of bridges across a gap * Cross bracing used between joists to stabilize them Electronics and computing * In electronics, using a low source impedance to drive a large load impedance for maximum voltage transfer, called impedance bridging * In electronics, a method of connecting a load to two amplifiers to increase available voltage, called a bridged amplifier * Bridging (networking), a packet forwarding technique used in computer networks * Bridging (programming), a system that allows different programming languages to share common resources * Communication protocol bridge, * In electronic assembly, a solder bridge is an (unintended) electrical connection between two conductors by means of a small blob of solder. PCB's use solder masks to prevent this from happening. Transport * The procedure by which oil products such as diesel or petrol are moved ("bridged") by road tanker from one oil depot to another. * Using a transport ship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge
A bridge is a structure built to Span (engineering), span a physical obstacle (such as a body of water, valley, road, or railway) without blocking the path underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge, dating from the 13th century BC, in the Peloponnese is one of the oldest arch bridges in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degranulation
Degranulation is a cellular process that releases antimicrobial, cytotoxic, or other molecules from secretory vesicles called granules found inside some cells. It is used by several different cells involved in the immune system, including granulocytes (neutrophils, basophils, eosinophils, and mast cells). It is also used by certain lymphocytes such as natural killer (NK) cells and cytotoxic T cells, whose main purpose is to destroy invading microorganisms. Mast cells Degranulation in mast cells is part of an inflammatory response, and substances such as histamine are released. Granules from mast cells mediate processes such as "vasodilation, vascular homeostasis, innate and adaptive immune responses, angiogenesis, and venom detoxification." Antigens interact with IgE molecules already bound to high affinity Fc receptors on the surface of mast cells to induce degranulation, via the activation of tyrosine kinases within the cell. The mast cell releases a mixture of compoun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bicyclic Molecule
A bicyclic molecule () is a molecule that features two joined rings. Bicyclic structures occur widely, for example in many biologically important molecules like α-thujene and camphor. A bicyclic compound can be carbocyclic (all of the ring atoms are carbons), or heterocyclic (the rings' atoms consist of at least two elements), like DABCO. Moreover, the two rings can both be aliphatic (''e.g.'' decalin and norbornane), or can be aromatic (''e.g.'' naphthalene), or a combination of aliphatic and aromatic (''e.g.'' tetralin). Three modes of ring junction are possible for a bicyclic compound: * In spiro compounds, the two rings share only one single atom, the spiro atom, which is usually a quaternary carbon. An example of a spirocyclic compound is the photochromic switch spiropyran. * In fused/condensed bicyclic compounds, two rings share two adjacent atoms. In other words, the rings share one covalent bond, ''i.e.'' the bridgehead atoms are directly connected (''e.g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Training
Animal training is the act of teaching animals specific responses to specific conditions or stimuli. Training may be for purposes such as companionship, detection, protection, and entertainment. The type of training an animal receives will vary depending on the training method used, and the purpose for training the animal. For example, a seeing eye dog will be trained to achieve a different goal than a wild animal in a circus. In some countries animal trainer certification bodies exist. They do not share consistent goals or requirements; they do not prevent someone from practicing as an animal trainer nor using the title. Similarly, the United States does not require animal trainers to have any specific certification. An animal trainer should consider the natural behaviors of the animal and aim to modify behaviors through a basic system of reward and punishment. Methods The behavioral approach Principles During training, an animal trainer can administer one of four pot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bench Pressing
The bench press or chest press is a weight training exercise where a person presses a weight upwards while lying horizontally on a weight training bench. The bench press is a compound movement, with the primary muscles involved being the pectoralis major, the anterior deltoids, and the triceps brachii. Other muscles located in the back, legs and core are involved for stabilization. A barbell is generally used to hold the weight, but a pair of dumbbells can also be used. The barbell bench press is one of three lifts in the sport of powerlifting alongside the deadlift and the squat, and is the only lift in Paralympic powerlifting. The bench press is also extensively used in weight training, bodybuilding, and other types of training to develop upper body muscles, primarily the pectoralis major. To improve upper body strength, power, and endurance for athletic, occupational, and functional performance as well as muscle development, the barbell bench press is frequently used. Mov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basketball
Basketball is a team sport in which two teams, most commonly of five players each, opposing one another on a rectangular Basketball court, court, compete with the primary objective of #Shooting, shooting a basketball (ball), basketball (approximately in diameter) through the defender's Basket (basketball), hoop (a basket in diameter mounted high to a Backboard (basketball), backboard at each end of the court), while preventing the opposing team from shooting through their own hoop. A Field goal (basketball), field goal is worth two points, unless made from behind the 3 point line, three-point line, when it is worth three. After a foul, timed play stops and the player fouled or designated to shoot a technical foul is given one, two or three one-point free throws. The team with the most points at the end of the game wins, but if regulation play expires with the score tied, an additional period of play (Overtime (sports), overtime) is mandated. Players advance the ball by boun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Climbing Terms
Glossary of climbing terms relates to rock climbing (including aid climbing, lead climbing, bouldering, and competition climbing), mountaineering, and to ice climbing. ebook: The terms used can vary between different English-speaking countries; many of the phrases described here are particular to the United States and the United Kingdom. A B C D E F G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Billiards
Cue sports are a wide variety of games of skill played with a cue stick, which is used to strike billiard balls and thereby cause them to move around a cloth-covered table bounded by elastic bumpers known as . Cue sports, a category of stick sports, may collectively be referred to as billiards, though this term has more specific connotations in some English dialects. There are three major subdivisions of games within cue sports: * Carom billiards, played on tables without , typically ten feet in length, including straight rail, balkline, one-cushion carom, three-cushion billiards, artistic billiards, and four-ball * Pocket billiards (or pool), played on six-pocket tables of seven, eight, nine, or ten-foot length, including among others eight-ball (the world's most widely played cue sport), nine-ball (the dominant professional game), ten-ball, straight pool (the formerly dominant pro game), one-pocket, and bank pool *Snooker, English billiards, and Russian pyra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cue Stick
A cue stick (or simply cue, more specifically billiards cue, pool cue, or snooker cue) is an item of sporting equipment essential to the games of pool, snooker and carom billiards. It is used to strike a ball, usually the . Cues are tapered sticks, typically about 57–59 inches (about 1.5 m) long and usually between 16 and 21 ounces (450–600 g), with professionals gravitating toward a 19-ounce (540 g) average. Cues for carom tend toward the shorter range, though cue length is primarily a factor of player height and arm length. Most cues are made of wood, but occasionally the wood is covered or bonded with other materials including graphite, carbon fiber or fiberglass. An obsolete term for a cue, used from the 16th to early 19th centuries, is billiard stick. History The predecessor of the cue was the mace, a lightweight implement resembling a golf club, with a foot designed primarily for shoving rather than striking the cue ball. When the ball was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount (grappling)
The mount, or mounted position, is a dominant ground grappling position, where one combatant sits on the other combatants torso (usually lower) with the face pointing towards the opponent's head. This is a favorable position for the top combatant in several ways. The top combatant can generate considerable momentum for strikes (such as punches or elbows) to the head of the opponent, while the bottom combatant is restricted by the ground and by the combatant on top. Other advantages include various chokeholds and joint locks that can be applied from the top. The bottom combatant will usually look to sweep the opponent or transition into a better position such as the guard. Variations of the mount A mount which is very high up on the opponent's chest is referred to as a high mount, and a very low one on the abdomen or even thighs as a low mount. A high mount can be used to pin one of the opponents arms under the knee, so as to prevent him or her from defending effectivel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grappling
Grappling is a fighting technique based on throws, trips, sweeps, clinch fighting, ground fighting and submission holds. Grappling contests often involve takedowns and ground control, and may end when a contestant concedes defeat. Should there be no winner after the match time-limit has lapsed, competition judges will determine the winner based on who exerted more control. Grappling most commonly does not include striking or the use of weapons. However, some fighting styles or martial arts known especially for their grappling techniques teach tactics that include strikes and weapons either alongside grappling or combined with it. History Grappling appears in the earliest combat systems. In Mesopotamia and Ancient Egypt, depictions of wrestlers in grappling poses appear on tombs and artifacts dating back to 2000 BCE. The Greeks formalized grappling in the sport of pále, a key part of the Olympic pentathlon, and developed a hybrid striking-grappling art called pankr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridge (exercise)
The bridge (also called gymnastic bridge) is an exercise. Many variations of this exercise are employed throughout the world, most commonly the balancing of the body on the hands and the feet. It is intended to improve lower back and gluteus strength. Examples of bridging in sportive or self-defense applications are seen in Kung Fu, Judo, Brazilian jiu jitsu, Capoeira, mixed martial arts, and wrestling. In yoga Yoga (UK: , US: ; 'yoga' ; ) is a group of physical, mental, and spiritual practices or disciplines that originated with its own philosophy in ancient India, aimed at controlling body and mind to attain various salvation goals, as pra ..., this particular pose is called Chakrasana, Urdhva Dhanurasana, or Wheel, while the Westernized nickname "Bridge pose" refers to a less rigorous supine backbend called Setu Bandha Sarvangasana, in which the body is fairly straight from knees to shoulders, and most of the bend is in the knees. Variations The bridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
