retrieve equilibrium
11Substitution model — A substitution model describes the process from which a sequence of characters of a fixed size from some alphabet changes into another set of traits. For example, in cladistics, each position in the sequence might correspond to a property of a… …
12Protein purification — is a series of processes intended to isolate a single type of protein from a complex mixture. Protein purification is vital for the characterisation of the function, structure and interactions of the protein of interest. The starting material is… …
13Evidence of common descent — The wide range of evidence of common descent of living things strongly indicates the occurrence of evolution and provides a wealth of information on the natural processes by which the variety of life on Earth developed, supporting the modern… …
14Hang gliding — Hang glider launching from Mount Tamalpais …
15Sex ratio — is the ratio of males to females in a population. The primary sex ratio is the ratio at the time of conception, secondary sex ratio is the ratio at time of birth, and tertiary sex ratio is the ratio of mature organisms. [Nancy S. Coney and W. C.… …
16Enzyme assay — Beckman DU640 UV/Vis spectrophotometer. Enzyme assays are laboratory methods for measuring enzymatic activity. They are vital for the study of enzyme kinetics and enzyme inhibition. Contents …
17Dinosauria — Dinosaurier Plastische Lebendrekonstruktion von Tyrannosaurus rex vor dem Frankfurter Senckenbergmuseum Zeitraum Mitteltrias bis Holozän (Gegenwart) …
18Evolution der Dinosaurier — Dinosaurier Plastische Lebendrekonstruktion von Tyrannosaurus rex vor dem Frankfurter Senckenbergmuseum Zeitraum Mitteltrias bis Holozän (Gegenwart) …
19Sauriersterben — Dinosaurier Plastische Lebendrekonstruktion von Tyrannosaurus rex vor dem Frankfurter Senckenbergmuseum Zeitraum Mitteltrias bis Holozän (Gegenwart) …
20particle accelerator — accelerator (def. 7). [1945 50] * * * Device that accelerates a beam of fast moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic… …
