hydrogen must diffuse into
41Colonization of Venus — Venus The colonization of Venus has been a subject of much speculation and many works of science fiction since before the dawn of spaceflight, and is still much discussed. With the discovery of Venus hostile surface environment, attention has… …
42Beetle — Beetles redirects here. For the band, see The Beatles. For the car, see Volkswagen Beetle. This article is about the insect. For other uses, see Beetle (disambiguation). Beetle Temporal range: 318–0 Ma …
43Annealing (metallurgy) — Annealing, in metallurgy and materials science, is a heat treatment wherein a material is altered, causing changes in its properties such as strength and hardness. It is a process that produces conditions by heating to above the recrystallization …
44Statin development — The discovery of HMG CoA (3 hydroxy 3 methylglutaryl CoA) reductase inhibitors, called statins, was a breakthrough in the prevention of hypercholesterolemia and related diseases. Hypercholesterolemia is considered to be one of the major risk… …
45Heterogeneous catalysis — is a chemistry term which describes catalysis where the catalyst is in a different phase (ie. solid, liquid and gas, but also oil and water) to the reactants. Heterogeneous catalysts provide a surface for the chemical reaction to take place on.… …
46Isobaric counterdiffusion — This article refers to ICD as it relates to tissue diffusion. For other uses of the term ICD, see ICD (disambiguation) Isobaric Counterdiffusion, Inert Gas Counterdiffusion , or ICD is the term used to describe the physiologic effect when the… …
47Hemodialysis — In medicine, hemodialysis (also haemodialysis) is a method for removing waste products such as potassium and urea, as well as free water from the blood when the kidneys are in renal failure. Hemodialysis is one of three renal replacement… …
48Apoplast — Within a plant, the apoplast is the free diffusional space outside the plasma membrane. It is interrupted by the Casparian strip in roots, air spaces between plant cells and the cuticula of the plant.Structurally, the apoplast is formed by the… …
49Thermal oxidation — In microfabrication, thermal oxidation is a way to produce a thin layer of oxide (usually silicon dioxide) on the surface of a wafer (semiconductor). The technique forces an oxidizing agent to diffuse into the wafer at high temperature and react… …
50Acetylcholine — IUPAC name …
