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Fishless cycling is a form of "maturing" an aquarium. The goal of the process is to establish a robust colony of nitrifiers, with the ammonia source provided to allow nitrifiers ('beneficial bacteria,' although nitrifiers can also be archaea) to grow and reproduce coming from non-fish sources, hence 'fishless.'
Cyclic steps are rhythmic bedforms associated with Froude super-critical flow instability. [1] [2] They are a type of sediment wave, [3] and are created when supercritical sediment-laden water (turbidity currents) travels downslope through sediment beds. [4] Each ‘step’ has a steep drop, and together they tend to migrate upstream. [5]
This cycle was the first metabolic cycle to be discovered by Hans Krebs and Kurt Henseleit in 1932, [2] [3] [4] five years before the discovery of the TCA cycle. The urea cycle was described in more detail later on by Ratner and Cohen. The urea cycle takes place primarily in the liver and, to a lesser extent, in the kidneys.
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The shikimate pathway (shikimic acid pathway) is a seven-step metabolic pathway used by bacteria, archaea, fungi, algae, some protozoans, and plants for the biosynthesis of folates and aromatic amino acids (tryptophan, phenylalanine, and tyrosine). This pathway is not found in mammals.
Door draft stoppers are an affordable, low-effort way to block out breezes, noise, light, odors and even bugs. It's a great first step in making sure you tackle your cold problem by blocking cold ...
DETROIT — As frigid temperatures engulf large swaths of the nation, auto experts are debunking a longtime myth about driving in winter. AAA, a federation of motor clubs, recommends drivers start ...
The Fickett–Jacobs cycle is a conceptual thermodynamic cycle that allows to compute an upper limit to the amount of mechanical work obtained from a cycle using an unsteady detonation process (explosive). The Fickett–Jacobs (FJ) cycle is based on Chapman–Jouguet (CJ) theory, an approximation for the detonation wave's velocity during a ...