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Ends
End, END, Ending, or variation, may refer to: End *In mathematics: **End (category theory) ** End (topology) **End (graph theory) ** End (group theory) (a subcase of the previous) **End (endomorphism) *In sports and games ** End (gridiron football) **End, a division of play in the sports of curling, target archery and pétanque ** End (dominoes), one of the halves of the face of a domino tile *In entertainment: **End (band) an American hardcore punk supergroup formed in 2017. **End key on a modern computer keyboard **End Records, a record label **"End", a song by The Cure from ''Wish'' ** Ends (song) (1998 song) song by Everlast, off the album ''Whitey Ford Sings the Blues'' *In other areas: **End, in weaving, a single thread of the warp **'' Ends (short story collection)'' (1988 book) anthology of Gordon R. Dickson stories END * European Nuclear Disarmament * Endoglin, a glycoprotein * Equivalent narcotic depth, a concept used in underwater diving * Environmental noise direc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End (graph Theory)
In the mathematics of infinite graphs, an end of a graph represents, intuitively, a direction in which the graph extends to infinity. Ends may be formalized mathematically as equivalence classes of infinite paths, as havens describing strategies for pursuit–evasion games on the graph, or (in the case of locally finite graphs) as topological ends of topological spaces associated with the graph. Ends of graphs may be used (via Cayley graphs) to define ends of finitely generated groups. Finitely generated infinite groups have one, two, or infinitely many ends, and the Stallings theorem about ends of groups provides a decomposition for groups with more than one end. Definition and characterization Ends of graphs were defined by in terms of equivalence classes of infinite paths. A in an infinite graph is a semi-infinite simple path; that is, it is an infinite sequence of vertices v_0,v_1,v_2,\dots in which each vertex appears at most once in the sequence and each two consecutiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End (graph Theory)
In the mathematics of infinite graphs, an end of a graph represents, intuitively, a direction in which the graph extends to infinity. Ends may be formalized mathematically as equivalence classes of infinite paths, as havens describing strategies for pursuit–evasion games on the graph, or (in the case of locally finite graphs) as topological ends of topological spaces associated with the graph. Ends of graphs may be used (via Cayley graphs) to define ends of finitely generated groups. Finitely generated infinite groups have one, two, or infinitely many ends, and the Stallings theorem about ends of groups provides a decomposition for groups with more than one end. Definition and characterization Ends of graphs were defined by in terms of equivalence classes of infinite paths. A in an infinite graph is a semi-infinite simple path; that is, it is an infinite sequence of vertices v_0,v_1,v_2,\dots in which each vertex appears at most once in the sequence and each two consecutiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End (topology)
In topology, a branch of mathematics, the ends of a topological space are, roughly speaking, the connected components of the "ideal boundary" of the space. That is, each end represents a topologically distinct way to move to infinity within the space. Adding a point at each end yields a compactification of the original space, known as the end compactification. The notion of an end of a topological space was introduced by . Definition Let ''X'' be a topological space, and suppose that :K_1 \subseteq K_2 \subseteq K_3 \subseteq \cdots is an ascending sequence of compact subsets of ''X'' whose interiors cover ''X''. Then ''X'' has one end for every sequence :U_1 \supseteq U_2 \supseteq U_3 \supseteq \cdots, where each ''U''''n'' is a connected component of ''X'' \ ''K''''n''. The number of ends does not depend on the specific sequence of compact sets; there is a natural bijection between the sets of ends associated with any two such sequences. Using this definitio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curling
Curling is a sport in which players slide stones on a sheet of ice toward a target area which is segmented into four concentric circles. It is related to bowls, boules, and shuffleboard. Two teams, each with four players, take turns sliding heavy, polished granite stones, also called ''rocks'', across the ice ''curling sheet'' toward the ''house'', a circular target marked on the ice. Each team has eight stones, with each player throwing two. The purpose is to accumulate the highest score for a ''game''; points are scored for the stones resting closest to the centre of the house at the conclusion of each ''end'', which is completed when both teams have thrown all of their stones once. A game usually consists of eight or ten ends. The player can induce a curved path, described as ''curl'', by causing the stone to slowly rotate as it slides. The path of the rock may be further influenced by two sweepers with brooms or brushes, who accompany it as it slides down the sheet and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electronic Cigarette
An electronic cigarette is an electronic device that simulates tobacco smoking. It consists of an atomizer, a power source such as a battery, and a container such as a cartridge or tank. Instead of smoke, the user inhales vapor. As such, using an e-cigarette is often called "vaping". The atomizer is a heating element that vaporizes a liquid solution called e-liquid, which quickly cools into an aerosol of tiny droplets, vapor and air. E-cigarettes are activated by taking a puff or pressing a button. Some look like traditional cigarettes, and most kinds are reusable. The vapor mainly comprises propylene glycol and/or glycerin, usually with nicotine and flavoring. Its exact composition varies, and depends on several things including user behavior. Vaping is likely much less harmful than smoking. E-cigarette vapor contains fewer toxins than cigarette smoke. It contains traces of harmful substances not found in cigarette smoke. Nicotine is highly addictive. User ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End (dominoes)
The following is a glossary of terms used in dominoes. Besides the terms listed here, there are numerous regional or local slang terms. Terms in this glossary should not be game-specific, i.e. specific to one particular version of dominoes, but apply to a wide range of domino games. For glossaries that relate primarily to one game or family of similar games, see the relevant article. A ; Ace : The end of a tile marked with one spot. A 'one'.''Domino Glossary'' at domino-play.com. Retrieved 26 December 2020. ; arm : A single straight line of within the . McLeod specifies that it only ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Happy Ending
A happy ending is an ending of the plot of a work of fiction in which almost everything turns out for the best for the main protagonists and their sidekicks, while the main villains/antagonists are dead/defeated. In storylines where the protagonists are in physical danger, a happy ending mainly consists of their survival and successful completion of the quest or mission; where there is no physical danger, a happy ending may be lovers consummating their love despite various factors which might have thwarted it. A considerable number of storylines combine both situations. In Steven Spielberg's version of " War of the Worlds", the happy ending consists of three distinct elements: The protagonists all survive the countless perils of their journey; humanity as a whole survives the alien invasion; ''and'' the protagonist father regains the respect of his estranged children. The plot is so constructed that all three are needed for the audience's feeling of satisfaction in the end. A h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chess Endgame
In chess and other similar games, the endgame (or end game or ending) is the stage of the game when few pieces are left on the board. The line between middlegame and endgame is often not clear, and may occur gradually or with the quick exchange of a few pairs of pieces. The endgame, however, tends to have different characteristics from the middlegame, and the players have correspondingly different strategic concerns. In particular, pawns become more important as endgames often revolve around attempting to promote a pawn by advancing it to the eighth . The king, which normally should stay hidden during the game should become active in the endgame, as it can help escort pawns to the promotion square, attack enemy pawns, protect other pieces, and restrict the movement of the enemy king. All chess positions with up to seven pieces on the board have been solved, that is, the outcome (win, loss, or draw) of best play by both sides is known, and textbooks and reference works teach t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alternate Ending
An alternate ending (or alternative ending) is an ending of a story that was considered, or even written or produced, but ultimately discarded in favour of another resolution. Generally, alternative endings are considered to have no bearing on the canonical narrative. Examples in literature * Charles Dickens' novel '' Great Expectations'' originally had a bleaker conclusion, with Pip meeting Estella, but after she remarried. In a letter, Dickens stated that he had been persuaded by Edward Bulwer-Lytton to change it prior to publication. * Ernest Hemingway struggled with the ending of ''A Farewell to Arms''. By his count, he wrote 39 of them "before I was satisfied." However, a 2012 edition of the book included 47 alternative endings. * Robert A. Heinlein originally killed off the protagonist of '' Podkayne of Mars'', but grudgingly let her live in response to his publisher's objections. * John Green tied one of the characters to railway tracks in his second draft of '' The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hardcore Punk
Hardcore punk (also known as simply hardcore) is a punk rock music genre and subculture that originated in the late 1970s. It is generally faster, harder, and more aggressive than other forms of punk rock. Its roots can be traced to earlier punk scenes in San Francisco and Southern California which arose as a reaction against the still predominant hippie cultural climate of the time. It was also inspired by Washington D.C. and New York punk rock and early proto-punk. Hardcore punk generally disavows commercialism, the established music industry and "anything similar to the characteristics of mainstream rock" and often addresses social and political topics with "confrontational, politically-charged lyrics." Hardcore sprouted underground scenes across the United States in the early 1980s, particularly in Los Angeles, San Francisco, Washington, D.C., Boston, and New York, as well as in Canada and the United Kingdom. Hardcore has spawned the straight edge movement and it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
End (gridiron Football)
An end in American and Canadian football is a player who lines up at either end of the line of scrimmage, usually beside the tackles. Rules state that a legal offensive formation must always consist of seven players on the line of scrimmage and that the player on the end of the line constitutes an eligible receiver. Before the advent of two platoons, in which teams fielded distinct defensive and offensive units, players that lined up on the ends of the line on both offense and defense were referred to simply as "ends". The position was used in this sense until roughly the 1960s. On offense, an end who lines up close to the other linemen is known as a tight end and is the only lineman who aside from blocking can run or catch passes. One who lines up some distance from the offensive line is known as a split end. In recent years and the proliferation of the forward pass, the term wide receiver covers both split ends and flankers (wide receivers who line up in split positio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Target Archery
Target archery is the most popular form of archery, in which members shoot at stationary circular targets at varying distances. All types of bow – longbow, barebow, recurve and compound – can be used. In Great Britain, imperial rounds, measured in yards, are still used for many tournaments and these have slightly different rules to metric (WA) rounds, which are used internationally. Archers are divided into seniors and juniors, with juniors being those under the age of 21. Modern competitive target archery is governed by the World Archery Federation (abbreviated WA), formerly FITA – Fédération Internationale de Tir à l'Arc. WA is the International Olympic Committee's (IOC) recognized governing body for all of archery and Olympic rules are derived from the WA rules. Currently 142 nations are represented by WA archery governing bodies. The largest of these are the FFTA (French archery federation) with approximately 60,000 members, FITARCO (Italian federation), DSB (German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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