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Obstructing Government Administration
Obstruction may refer to: Places * Obstruction Island, in Washington state * Obstruction Islands, east of New Guinea Medicine * Obstructive jaundice * Obstructive sleep apnea * Airway obstruction, a respiratory problem ** Recurrent airway obstruction * Bowel obstruction, a blockage of the intestines. * Gastric outlet obstruction * Distal intestinal obstruction syndrome * Congenital lacrimal duct obstruction * Bladder outlet obstruction Politics and law * Obstruction of justice, the crime of interfering with law enforcement * Obstructionism, the practice of deliberately delaying or preventing a process or change, especially in politics * Emergency Workers (Obstruction) Act 2006 Science and mathematics * Obstruction set in forbidden graph characterizations, in the study of graph minors in graph theory * Obstruction theory, in mathematics * Propagation path obstruction ** Single Vegetative Obstruction Model Sports * Obstruction (baseball), when a fielder illegally hinders a b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obstruction Island
Obstruction Island is one of the San Juan Islands in San Juan County, Washington, United States. It lies off the southeast tip of Orcas Island, between it and Blakely Island Blakely Island (SENĆOŦEN: XEMXEMIȽĆ) in San Juan County, Washington is the sixth largest island in the San Juan Islands of Washington State, United States, encompassing a land area of 16.852 km (6.507 sq m). It is separated from Cypres .... Obstruction Island has a land area of 0.882 km² (0.3406 sq mi, or 218 acres). The 2010 census reported a permanent population of 14 residents.Census blocks found on: References San Juan Islands {{SanJuanCountyWA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emergency Workers (Obstruction) Act 2006
The Emergency Services (Obstruction) Act 2006 (c 39) is an Act of the Parliament of the United Kingdom. It is intended to reduce the instances of obstruction of, or assaults on, emergency service personnel. Sections 1 to 6 came into force on 20 February 2007. The corresponding Swedish law is called ' (''blåljussabotage'' for short, literally ''bluelight sabotage'' in English). Scope The Act defines emergency service personnel to cover firefighters, paramedics or other persons responding on behalf of the statutory ambulance service, members of HM Coastguard, and crew of a vessel of the RNLI or any other lifeboat. Offences and penalties The Act makes it an offence to obstruct any emergency service crew while responding to an emergency, whether physically or not, punishable by a fine of up to level 5 on the standard scale. See R v McMenemy 009EWCA Crim 42, 0092 Cr App R (S). Section 6 - Repeals This section repealed sections 44(3) and (4) of the Fire and Rescue Services Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obstructing The Field
Obstructing the field is one of the ten methods of dismissing a batsman in the sport of cricket. Either batsman can be given out if he wilfully attempts to obstruct or distract the fielding side by word or action. It is Law 37 of the Laws of cricket, and is a rare way for a batsman to be dismissed; in the history of cricket, there has been only one instance in Test matches, six occasions in One Day International (ODI) games, and only one instance in Twenty20 International matches. There have also been seven instances in Test cricket, and two in ODIs, where a batsman has been dismissed handled the ball, a mode of dismissal now folded into obstructing the field. One modern pattern of obstruction in limited overs cricket occurs when a batsman thinks that he is going to be run out and blocks the ball with his bat, or changes his course while running between wickets to block the ball. The obstruction has to be deliberate. The only time a batsman has been dismissed obstructing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obstruction (baseball)
In baseball, obstruction is when a fielder illegally hinders a baserunner running within the basepath. Baserunners are generally permitted to run from base to base without being physically blocked or hindered by a fielder. The only time that a fielder is not obligated to "get out of the way" of a baserunner is when the fielder is fielding a hit ball or in possession of the ball. Definition Official Baseball Rule 2.00 defines obstruction as: The comment to Rule 7.09(j) adds that High school and college versions of the rule also add rules against malicious or flagrant contact. Types of obstruction and corresponding penalties Any case of obstruction falls into one of two categories (formerly called type "A" and type "B" until the 2014 rewriting of the MLB Umpire rulebook), after the subsection of Rule 6.01(h), in which each type of obstruction, and the corresponding penalties, are described.https://content.mlb.com/documents/2/2/4/305750224/2019_Official_Baseball_Rules_FINAL_.p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propagation Path Obstruction
In telecommunication, a propagation path obstruction is a man-made or natural physical feature that lies near enough to a radio path to cause a measurable effect on path loss, exclusive of reflection effects. An obstruction may lie to the side, above, or below the path. Ridges, bridges, cliffs, buildings, and trees are examples of obstructions. If the clearance from the nearest anticipated path position, over the expected range of Earth radius ''k''-factor, exceeds 0.6 of the first Fresnel zone A Fresnel zone ( ), named after physicist Augustin-Jean Fresnel, is one of a series of confocal prolate ellipsoidal regions of space between and around a transmitter and a receiver. The primary wave will travel in a relative straight line fro ... radius, the feature is not normally considered an obstruction. References *{{FS1037C MS188 Radio frequency propagation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obstruction Theory
In mathematics, obstruction theory is a name given to two different mathematical theories, both of which yield cohomological invariants. In the original work of Stiefel and Whitney, characteristic classes were defined as obstructions to the existence of certain fields of linear independent vectors. Obstruction theory turns out to be an application of cohomology theory to the problem of constructing a cross-section of a bundle. In homotopy theory The older meaning for obstruction theory in homotopy theory relates to the procedure, inductive with respect to dimension, for extending a continuous mapping defined on a simplicial complex, or CW complex. It is traditionally called ''Eilenberg obstruction theory'', after Samuel Eilenberg. It involves cohomology groups with coefficients in homotopy groups to define obstructions to extensions. For example, with a mapping from a simplicial complex ''X'' to another, ''Y'', defined initially on the 0-skeleton of ''X'' (the vertices of ''X'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graph Theory
In mathematics, graph theory is the study of ''graphs'', which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of '' vertices'' (also called ''nodes'' or ''points'') which are connected by '' edges'' (also called ''links'' or ''lines''). A distinction is made between undirected graphs, where edges link two vertices symmetrically, and directed graphs, where edges link two vertices asymmetrically. Graphs are one of the principal objects of study in discrete mathematics. Definitions Definitions in graph theory vary. The following are some of the more basic ways of defining graphs and related mathematical structures. Graph In one restricted but very common sense of the term, a graph is an ordered pair G=(V,E) comprising: * V, a set of vertices (also called nodes or points); * E \subseteq \, a set of edges (also called links or lines), which are unordered pairs of vertices (that is, an edge is associated wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graph Minor
In graph theory, an undirected graph is called a minor of the graph if can be formed from by deleting edges and vertices and by contracting edges. The theory of graph minors began with Wagner's theorem that a graph is planar if and only if its minors include neither the complete graph nor the complete bipartite graph ., p. 77; . The Robertson–Seymour theorem implies that an analogous forbidden minor characterization exists for every property of graphs that is preserved by deletions and edge contractions., theorem 4, p. 78; . For every fixed graph , it is possible to test whether is a minor of an input graph in polynomial time; together with the forbidden minor characterization this implies that every graph property preserved by deletions and contractions may be recognized in polynomial time. Other results and conjectures involving graph minors include the graph structure theorem, according to which the graphs that do not have as a minor may be formed by gl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forbidden Graph Characterization
In graph theory, a branch of mathematics, many important families of graphs can be described by a finite set of individual graphs that do not belong to the family and further exclude all graphs from the family which contain any of these forbidden graphs as (induced) subgraph or minor. A prototypical example of this phenomenon is Kuratowski's theorem, which states that a graph is planar (can be drawn without crossings in the plane) if and only if it does not contain either of two forbidden graphs, the complete graph and the complete bipartite graph . For Kuratowski's theorem, the notion of containment is that of graph homeomorphism, in which a subdivision of one graph appears as a subgraph of the other. Thus, every graph either has a planar drawing (in which case it belongs to the family of planar graphs) or it has a subdivision of at least one of these two graphs as a subgraph (in which case it does not belong to the planar graphs). Definition More generally, a forbidden gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obstruction Set
Obstruction may refer to: Places * Obstruction Island, in Washington state * Obstruction Islands, east of New Guinea Medicine * Obstructive jaundice * Obstructive sleep apnea * Airway obstruction, a respiratory problem ** Recurrent airway obstruction * Bowel obstruction, a blockage of the intestines. * Gastric outlet obstruction * Distal intestinal obstruction syndrome * Congenital lacrimal duct obstruction * Bladder outlet obstruction Politics and law * Obstruction of justice, the crime of interfering with law enforcement * Obstructionism, the practice of deliberately delaying or preventing a process or change, especially in politics * Emergency Workers (Obstruction) Act 2006 Science and mathematics * Obstruction set in forbidden graph characterizations, in the study of graph minors in graph theory * Obstruction theory, in mathematics * Propagation path obstruction ** Single Vegetative Obstruction Model Sports * Obstruction (baseball), when a fielder illegally hinders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obstructionism
Obstructionism is the practice of deliberately delaying or preventing a process or change, especially in politics. As workplace aggression An obstructionist causes problems. Neuman and Baron (1998) identify obstructionism as one of the three dimensions that encompass the range of workplace aggression. In this context, obstructionism is "behaviors intended to hinder an employee from performing their job or the organization from accomplishing its objectives". In politics Obstructionism or policy of obstruction denotes the deliberate interference with the progress of a legislation by various means such as filibustering or slow walking which may depend on the respective parliamentary procedures. As political strategy Obstructionism can also take the form of widespread agreement to oppose policies from the other side of a political debate or dispute. Mass media In September 2010, Jon Stewart of ''The Daily Show'' announced the Rally to Restore Sanity and/or Fear, an event dedic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
