Conclusion (music)

In music, the conclusion is the ending of a composition and may take the form of a coda or outro.

Pieces using sonata form typically use the recapitulation to conclude a piece, providing closure through the repetition of thematic material from the exposition in the tonic key. In all musical forms other techniques include "altogether unexpected digressions just as a work is drawing to its close, followed by a return...to a consequently more emphatic confirmation of the structural relations implied in the body of the work."

For example:

Facebook features

Facebook is a social network service website launched on February 4, 2004. This is a list of software and technology features that can be found on the Facebook website.

Facebook structure

News Feed

On September 6, 2006, Ruchi Sanghvi announced a new home page feature called News Feed. Originally, when users logged into Facebook, they were presented with a customizable version of their own profile. The new layout, by contrast, created an alternative home page in which users saw a constantly updated list of their friends' Facebook activity. News Feed highlights information that includes profile changes, upcoming events, and birthdays, among other updates. This has enabled spammers and other users to manipulate these features by creating illegitimate events or posting fake birthdays to attract attention to their profile or cause. News Feed also shows conversations taking place between the walls of a user's friends. An integral part of the News Feed interface is the Mini Feed, a news stream on the user's profile page that shows updates about that user. Unlike in the News Feed, the user can delete events from the Mini Feed after they appear so that they are no longer visible to profile visitors. In 2011 Facebook updated the News Feed to show top stories and most recent stories in one feed, and the option to highlight stories to make them top stories, as well as to un-highlight stories. In response to users' criticism, Facebook later updated the News Feed to allow users to view recent stories first.

Tag (game)

Tag (also known as it, tip you're it or tig [in regions of Britain], and many other names) is a playground game that involves one or more players chasing other players in an attempt to "tag" or touch them, usually with their hands. There are many variations; most forms have no teams, scores, or equipment. Usually when a person is tagged, the tagger says, "Tag, you're it".

Basic rules

A group of players (two or more) decide who is going to be "it", often using a counting-out game such as eeny, meeny, miny, moe. The player selected to be "it" then chases the others, attempting to get close enough to "tag" one of them (touching them with a hand) while the others try to escape. A tag makes the tagged player "it" - in some variations, the previous "it" is no longer "it" and the game can continue indefinitely while in others, both players remain "it" and the game ends when all players have become "it".

There are many variants which modify the rules for team play, or place restrictions on tagged players' behavior. A simple variation makes tag an elimination game, so those tagged drop out of play. Some variants have a rule preventing a player from tagging the person who has just tagged them (known as "no tags-back", "no returns", or "can't tag your master").

Éder (Portuguese footballer)

Éderzito António Macedo Lopes (born 22 December 1987), commonly known as Éder, is a Portuguese professional footballer who plays for French club Lille OSC on loan from Swansea City as a forward.

He started playing professionally in 2008 with Académica, and signed for Braga four years later. Over the course of seven seasons, he amassed Primeira Liga totals of 143 games and 38 goals.

A Portuguese international since 2012, Éder represented the country at the 2014 World Cup.

Club career

Early years

Born in Bissau, Guinea-Bissau, Éder moved to Portugal as a child, and started playing football with Associação Desportiva e Cultural da Adémia in the Coimbra District at the age of 11. He made his senior debut with F.C. Oliveira do Hospital and G.D. Tourizense, the latter in the third division and the farm team of Académica de Coimbra.

Académica

Éder made his top level debut for Académica on 24 August 2008, in a 0–1 away loss against C.F. Estrela da Amadora. He scored his first goal for the club at the end of the season, netting the Students equalizing goal in an eventual 3–1 victory over Associação Naval 1º de Maio.

Éder (Italian footballer)

Éder Citadin Martins, simply known as Éder (born 15 November 1986), is a Brazilian-born Italian professional footballer who plays as a striker for Italian club Internazionale, on loan from Sampdoria, and for the Italian national team.

A Brazilian of Italian descent, he made his debut for Italy in March 2015, and scored two goals in their successful qualification campaign for UEFA Euro 2016.

Club career

Frosinone

Éder signed for Frosinone in a co-ownership deal for a fee of €600,000 in June 2008 following a loan spell during the second half of the 2007–08 Serie B season.

Return to Empoli

Empoli bought back Éder from Frosinone in June 2009 for €2.42 million following an impressive Serie B season from the striker. He scored 4 goals in one Serie B game on 15 April 2010, two of which were penalties, in a 5–2 victory for Empoli over Salernitana.

Brescia

On 20 August 2010, he signed a 1+4 year contract with Serie A newcomers Brescia, for an undisclosed fee, meaning that Éder would join Brescia on loan for the first year. Brescia later revealed in its financial report that the loan fee was €1.8 million.

Catalysis

Catalysis (/kəˈtælᵻsᵻs/) is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst (/ˈkætəlᵻst/). With a catalyst, reactions occur faster and require less activation energy. Because catalysts are not consumed in the catalyzed reaction, they can continue to catalyze the reaction of further quantities of reactant. Often only tiny amounts are required.

Technical perspective

In the presence of a catalyst, less free energy is required to reach the transition state, but the total free energy from reactants to products does not change. A catalyst may participate in multiple chemical transformations. The effect of a catalyst may vary due to the presence of other substances known as inhibitors or poisons (which reduce the catalytic activity) or promoters (which increase the activity). The opposite of a catalyst, a substance that reduces the rate of a reaction, is an inhibitor.

Catalyzed reactions have a lower activation energy (rate-limiting free energy of activation) than the corresponding uncatalyzed reaction, resulting in a higher reaction rate at the same temperature and for the same reactant concentrations. However, the detailed mechanics of catalysis is complex. Catalysts may affect the reaction environment favorably, or bind to the reagents to polarize bonds, e.g. acid catalysts for reactions of carbonyl compounds, or form specific intermediates that are not produced naturally, such as osmate esters in osmium tetroxide-catalyzed dihydroxylation of alkenes, or cause dissociation of reagents to reactive forms, such as chemisorbed hydrogen in catalytic hydrogenation.

Catalyst (disambiguation)

A catalyst is a substance which increases the rate of a chemical reaction.

Catalyst may also refer to:

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