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### Loop (graph theory)

In graph theory, a loop (also called a self-loop or a "buckle") is an edge that connects a vertex to itself. A simple graph contains no loops. For an undirected graph, the degree of a vertex is equal to the number of adjacent vertices.
cycle graph theory

### Cycle (graph theory)

In graph theory, there are several different types of object called cycles; a closed walk and a simple cycle. A closed walk consists of a sequence of vertices starting and ending at the same vertex, with each two consecutive vertices in the sequence adjacent to each other in the graph.
cycle graph theory

### Directed graph

In mathematics, and more specifically in graph theory, a directed graph (or digraph) is a graph, or set of nodes connected by edges, where the edges have a direction associated with them. In formal terms, a digraph is a pair (sometimes ) of:[1]
cycle graph theory

### Kosaraju's algorithm

In computer science, Kosaraju's algorithm (also known as the Kosarajuâ€“Sharir algorithm) is a linear time algorithm to find the strongly connected components of a directed graph. Aho, Hopcroft and Ullman credit it to an unpublished paper from 1978 by S. Rao Kosaraju.
cycle graph theory algorithm

### Path-based strong component algorithm

In graph theory, the strongly connected components of a directed graph may be found using an algorithm that uses depth-first search in combination with two stacks, one to keep track of the vertices in the current component and the second to keep track of the current search path.
cycle graph theory algorithm

### Strongly connected component

In the mathematical theory of directed graphs, a graph is said to be strongly connected if every vertex is reachable from every other vertex. The strongly connected components of an arbitrary directed graph form a partition into subgraphs that are themselves strongly connected.
cycle graph theory

### Vacilando/php-tarjan

tarjan.
cycle loop circuit directed graph graph theory algorithm Robert Tarjan php

### Estrous cycle

... some evidence suggests human females also undergo semi-annual heat cycles. Although sexual responsiveness is influenced by social and cultural factors, there is evidence that human females undergo emotional and physiological changes associated with estrus cycles and may be more likely to be irritable and/or sexually aroused during the peaks of heat cycles. Further, just as males of other species respond in differing ways to females in...
sex human heat estrus female cycle reproduction heat cycle

### 'First image' of star's eclipse captured by scientists

Astronomers at the University of St Andrews worked on an international study of the star Epsilon Aurigae, from the Auriga constellation. Every 27 years it becomes dimmer, a phenomenon which lasts for two years. The physicists combined light from four telescopes to get the first image of the eclipse, which is 140 times sharper than images from the Hubble telescope.

2010-04-07

star eclipse cycle

### Cosmos may show echoes of events before Big Bang

Evidence of events that happened before the Big Bang can be seen in the glow of microwave radiation that fills the Universe, scientists have asserted. Renowned cosmologist Roger Penrose said that analysis of this cosmic microwave background showed echoes of previous Big Bang-like events. The events appear as "rings" around galaxy clusters in which the variation in the background is unusually low...
Roger Penrose physics cosmology astronomy Big Bang universe philosophy constant nature law cycle aeon time space microwave galaxy

### Wie wint een wieleroutfit dankzij de Paterberg?

2011-04-15

video visualization cycle sport Philippe Bekaert camera

### The Gartner hype cycle and Drupal

2011-06-08

Drupal hype cycle technology novelty popular social

### Hype cycle

A hype cycle is a graphic representation of the maturity, adoption and social application of specific technologies.
hype cycle psychology innovation novelty social

### Vilnius mayor crushes car parked in cycle lane

2011-08-02

Lithuania Vilnius cycle car