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Propagule pressure plays an important role in species invasions (Groom, 2006). Charles Darwin was the first to study specific factors related to invasions of non-native species. In his research he identified that few members of the same genus were present in habitats containing naturalized non-indigenous species (Colautti et al., 2006).
Move over, Wordle and Connections—there's a new NYT word game in town! The New York Times' recent game, "Strands," is becoming more and more popular as another daily activity fans can find on ...
Halstead's goal was to identify measurable properties of software, and the relations between them. This is similar to the identification of measurable properties of matter (like the volume, mass, and pressure of a gas) and the relationships between them (analogous to the gas equation). Thus his metrics are actually not just complexity metrics.
The Review of Particle Physics [2] (formerly Review of Particle Properties, Data on Particles and Resonant States, and Data on Elementary Particles and Resonant States) is a voluminous, 1,200+ page reference work which summarizes particle properties and reviews the current status of elementary particle physics, general relativity and big-bang cosmology.
Paris Hilton, left, and Nicole Richie in Los Angeles in November. The pair star in Peacock's reality TV special "Paris & Nicole: The Encore," premiering Thursday.
Government agencies are investigating the death of a Mexican gray wolf in Arizona. The animal is protected by the Endangered Species Act.
Also, it is unknown whether there is a metastable vacuum state in string theory with a positive cosmological constant, [47] and it has been conjectured by Ulf Danielsson et al. that no such state exists. [48] This conjecture would not rule out other models of dark energy, such as quintessence, that could be compatible with string theory. [47]
The 20 best gifts to give someone you don't know very well