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Carbonic anhydrase was initially isolated and characterised from red blood cells in 1933, with simultaneous reports by Meldrum and Roughton (at Cambridge University in the United Kingdom) and by Stadie and O’Brien (at the University of Pennsylvania in the United States), [7] [8] both while searching for a "catalytic factor... necessary for rapid transit of the HCO 3 − [bicarbonate anion ...
In thermodynamics, the ebullioscopic constant K b relates molality b to boiling point elevation. [1] It is the ratio of the latter to the former: = i is the van 't Hoff factor, the number of particles the solute splits into or forms when dissolved.
The Rajya Sabha passed the bill on 20 July 2009 [10] and the Lok Sabha on 4 August 2009. [11] It received Presidential assent and was notified as law on 26 August 2009 [12] as The Children's Right to Free and Compulsory Education Act. [13] The law came into effect in the whole of India except the state of Jammu and Kashmir from 1 April 2010.
The Debye–Hückel theory was proposed by Peter Debye and Erich Hückel as a theoretical explanation for departures from ideality in solutions of electrolytes and plasmas. [1] It is a linearized Poisson–Boltzmann model , which assumes an extremely simplified model of electrolyte solution but nevertheless gave accurate predictions of mean ...
[7] [8] While the adult males in some members of Podapolipidae have six legs, the adult females have only a single pair. [9] Arachnids are further distinguished from insects by the fact they do not have antennae or wings. Their body is organized into two tagmata, called the prosoma and opisthosoma, also referred to as the cephalothorax and ...
Helen (Ancient Greek: Ἑλένη, romanized: Helénē [b]), also known as Helen of Troy, [2] [3] or Helen of Sparta, [4] and in Latin as Helena, [5] was a figure in Greek mythology said to have been the most beautiful woman in the world.
The word pesticide derives from the Latin pestis (plague) and caedere (kill). [5]The Food and Agriculture Organization (FAO) has defined pesticide as: . any substance or mixture of substances intended for preventing, destroying, or controlling any pest, including vectors of human or animal disease, unwanted species of plants or animals, causing harm during or otherwise interfering with the ...
In the above equation, T F is the normal freezing point of the pure solvent (273 K for water, for example); a liq is the activity of the solvent in the solution (water activity for aqueous solution); ΔH fus T F is the enthalpy change of fusion of the pure solvent at T F, which is 333.6 J/g for water at 273 K; ΔC fus p is the difference ...