feedback mechanism
91Grapevine (gossip) — See also Chinese whispers. To hear something through the grapevine is to learn of something informally and unofficially by means of gossip and rumour.The usual implication is that the information was passed person to person by word of mouth,… …
92Pleistocene Epoch — Earlier and longer of the two epochs that constitute the Quaternary Period. The Pleistocene began с 1.8 million years ago and ended с 10,000 years ago. It was preceded by the Pliocene Epoch of the Tertiary Period and followed by the Holocene… …
93Clinical Systems and Networks — A healthcare system is a set of activities with a common set of objectives. For each objective it is necessary to choose one, or more, criteria that can be used to measure progress or the lack of it. The dataset of criteria provides another of… …
94Eyewall replacement cycle — Concentric eyewalls seen in Hurricane Katrina as it travels west through the Gulf of Mexico. Eyewall replacement cycles, also called concentric eyewall cycles, naturally occur in intense tropical cyclones, generally with winds greater than… …
95Naked cuticle — (Nkd) is a conserved family of intracellular proteins encoded in the genomes of diverse animals, including nearly all insects and vertebrates studied to date. The original mutants were discovered by 1995 Nobel laureates Christiane Nüsslein… …
96Liquid crystal — Schlieren texture of liquid crystal nematic phase Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal.[1] For instance, an LC may flow like a liquid, but its… …
97Receptor (biochemistry) — For other uses, see Receptor (disambiguation). In biochemistry, a receptor is a molecule found on the surface of a cell, which receives specific chemical signals from neighbouring cells or the wider environment within an organism. These signals… …
98Neurogenesis — BrdU (red), a marker of DNA replication, highlights neurogenesis in the subgranular zone of hippocampal dentate gyrus. Fragment of an …
9920-Hydroxyecdysone — Drugbox IUPAC name = (2β,3β,5β,22R) 2,3,14,20,22,25 Hexahydroxycholest 7 en 6 one CAS number = 5289 74 7 ATC prefix = ATC suffix = PubChem = DrugBank = C=27|H=44|O=7 molecular weight = 480.63 g/mol bioavailability = protein bound = metabolism =… …
100Repressor — For other uses, see repression A repressor is a DNA binding protein that regulates the expression of one or more genes by decreasing the rate of transcription. This blocking of expression is called repression.Repressor proteins are coded for by… …
