…a trial of machinery, software, or other products carried out by a developer before a product is made available for beta testing…
…any of a class of drugs that prevent the stimulation of the adrenergic receptors responsible for increased blood pressure…
…the normal electrical activity of the brain when conscious and relaxed, consisting of oscillations (alpha waves) with a frequency of 8 to 13 hertz…
…the third brightest star in the sky, in the constellation Centaurus, visible only to observers in the southern hemisphere. It is the nearest bright star to the solar system (distance 4.34 light years), and is a visual binary…
…a helium nucleus emitted by some radioactive substances, originally regarded as a ray…
…ionizing radiation consisting of alpha particles, emitted by some substances undergoing radioactive decay…
…a protein produced by a fetus that is present in amniotic fluid and the bloodstream of the mother. Levels of the protein can be measured to detect certain congenital defects such as spina bifida and Down syndrome…
…an organic acid containing a hydroxyl group bonded to the carbon atom adjacent to the carboxylic acid group. A number of such compounds are used in skin-care preparations for their exfoliating properties…
…the beginning and the end (especially used by Christians as a title for Jesus)…
…any of a group of simple proteins soluble in salt solutions and forming a large fraction of blood serum protein. The three principal subsets of globulin are alpha globulin, beta globulin, and gamma globulin, which are distinguished by their respective degrees of electrophoretic mobility (alpha having the greatest and gamma having the least)…
…the normal electrical activity of the brain when conscious and relaxed, consisting of oscillations (alpha waves) with a frequency of 8 to 13 hertz…
…any of a group of simple proteins soluble in salt solutions and forming a large fraction of blood serum protein. The three principal subsets of globulin are alpha globulin, beta globulin, and gamma globulin, which are distinguished by their respective degrees of electrophoretic mobility (alpha having the greatest and gamma having the least)…
