The Fédération Internationale de Football Association (FIFA /ˈfiːfə/; English:International Federation of Association Football) is the governing body of association football, futsal and beach football. FIFA is responsible for the organisation of football's major international tournaments, notably the World Cup which commenced in 1930 and the Women's World Cup which commenced in 1991.
FIFA was founded in 1904 to oversee international competition among the national associations of Belgium, Denmark, France, Germany, the Netherlands, Spain, Sweden and Switzerland. Headquartered in Zürich, its membership now comprises 209 national associations. Member countries must each also be members of one of the six regional confederations into which the world is divided: Africa, Asia, Europe, North & Central America and the Caribbean, Oceania and South America.
Although FIFA does not control the rules of football (that being the responsibility of the International Football Association Board), it is responsible for both the organization of a number of tournaments and their promotion, which generate revenue from sponsorship. In 2013 FIFA had revenues of over 1.3 billion U.S. dollars, for a net profit of 72 million, and had cash reserves of over 1.4 billion U.S. dollars.
The 2014 FIFA World Cup was the 20th FIFA World Cup, the quadrennial world championship for men's national football teams organized by FIFA. It took place in Brazil from 12 June to 13 July 2014, after the country was awarded the hosting rights in 2007. It was the second time that Brazil staged the competition (the first was in 1950), and the fifth time that it was held in South America.
Thirty-one national teams advanced through qualification competitions to join the host nation in the final tournament. A total of 64 matches were played in 12 venues located in as many host cities across Brazil. For the first time at a World Cup finals, match officials used goal-line technology, as well as vanishing foam for free kicks.FIFA Fan Fests in each host city gathered a total of 5 million people, and the country received 1 million visitors from 202 countries.
Every World Cup-winning team since the first edition in 1930 – Argentina, Brazil, England, France, Germany, Italy, Spain and Uruguay – qualified for this tournament. Spain, the title holders, were eliminated at the group stage, along with England and Italy. Uruguay were eliminated in the round of 16, and France exited in the quarter-finals. Brazil, who had won the 2013 FIFA Confederations Cup, lost to Germany in the semi-finals and eventually finished in fourth place. In the final, Germany defeated Argentina 1–0 to win the tournament and secure the country's fourth world title, the first after the German reunification in 1990, when as West Germany they also beat Argentina in the World Cup final. Germany became the first European team to win a World Cup staged in the Americas, and this result marked the first time that sides from the same continent had won three consecutive tournaments (following Italy in 2006 and Spain in 2010).
The 2010 FIFA World Cup was the 19th FIFA World Cup, the world championship for men's national association football teams. It took place in South Africa from 11 June to 11 July 2010. The bidding process for hosting the tournament finals was open only to African nations; in 2004, the international football federation, FIFA, selected South Africa over Egypt and Morocco to become the first African nation to host the finals.
The matches were played in 10 stadiums in nine host cities around the country, with the final played at the Soccer City stadium in South Africa's largest city, Johannesburg. Thirty-two teams were selected for participation via a worldwide qualification tournament that began in August 2007. In the first round of the tournament finals, the teams competed in round-robin groups of four teams for points, with the top two teams in each group proceeding. These 16 teams advanced to the knockout stage, where three rounds of play decided which teams would participate in the final.
The International Ultramarine Corps, formerly the Ultramarine Corps, is a fictional team of superheroes published by DC Comics. They first appeared in DC One Million #2 (November 1998), and were created by Grant Morrison and Howard Porter.
The Corps was created by the U.S. as a government-sponsored group of superhumans to rival the more independent Justice League. Led by General Wade Eiling, the original members of the team were Flow, 4-D, Pulse 8 and Warmaker One. During a fight with the JLA, the UMC realised that Eiling was dangerously insane and that they were on the wrong side; they then sided with the League against their leader.
Having developed a mistrust of governments, the Corps subsequently declared themselves independent of any and all nations and built a free-floating city in which to dwell, which they named Superbia and set in the air above the ruins of Montevideo. They put out a call to other disaffected superheroes to join them in their city, and received a number of responses from around the globe, although the total population and demographics of Superbia are unknown.
In graph theory, a flow network (also known as a transportation network) is a directed graph where each edge has a capacity and each edge receives a flow. The amount of flow on an edge cannot exceed the capacity of the edge. Often in operations research, a directed graph is called a network. The vertices are called nodes and the edges are called arcs. A flow must satisfy the restriction that the amount of flow into a node equals the amount of flow out of it, unless it is a source, which has only outgoing flow, or sink, which has only incoming flow. A network can be used to model traffic in a road system, circulation with demands, fluids in pipes, currents in an electrical circuit, or anything similar in which something travels through a network of nodes.
Let be a finite directed graph in
which every edge
has a non-negative, real-valued capacity
. If
, we assume that
. We distinguish two vertices: a source s and a sink t. A flow in a flow network is a real function
with the following three properties for all nodes u and v:
In packet switching networks, traffic flow, packet flow or network flow is a sequence of packets from a source computer to a destination, which may be another host, a multicast group, or a broadcast domain. RFC 2722 defines traffic flow as "an artificial logical equivalent to a call or connection."RFC 3697 defines traffic flow as "a sequence of packets sent from a particular source to a particular unicast, anycast, or multicast destination that the source desires to label as a flow. A flow could consist of all packets in a specific transport connection or a media stream. However, a flow is not necessarily 1:1 mapped to a transport connection." Flow is also defined in RFC 3917 as "a set of IP packets passing an observation point in the network during a certain time interval."
A flow can be uniquely identified by the following parameters within a certain time period: