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  2. Histamine H2 receptor - Wikipedia

    en.wikipedia.org/wiki/Histamine_H2_receptor

    3274 15466 Ensembl ENSG00000113749 ENSMUSG00000034987 UniProt P25021 P97292 RefSeq (mRNA) NM_001131055 NM_022304 NM_001367711 NM_001393460 NM_001393461 NM_001010973 NM_008286 RefSeq (protein) NP_001124527 NP_001354640 NP_001010973 Location (UCSC) Chr 5: 175.66 – 175.71 Mb Chr 13: 54.35 – 54.39 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse H 2 receptors are a type of histamine ...

  3. Histamine receptor - Wikipedia

    en.wikipedia.org/wiki/Histamine_receptor

    H1 receptors are linked to allergic responses, H2 to gastric acid regulation, H3 to neurotransmitter release modulation, and H4 to immune system function. There are four known histamine receptors: H 1 receptor – Primarily located on smooth muscle cells , endothelial cells, and neurons.

  4. H2 receptor antagonist - Wikipedia

    en.wikipedia.org/wiki/H2_receptor_antagonist

    Cimetidine was the prototypical histamine H 2 receptor antagonist from which later drugs were developed. Cimetidine was the culmination of a project at Smith, Kline & French (SK&F; now GlaxoSmithKline) by James W. Black, C. Robin Ganellin, and others to develop a histamine receptor antagonist that would suppress stomach acid secretion.

  5. Heat of combustion - Wikipedia

    en.wikipedia.org/wiki/Heat_of_combustion

    The difference between the two heating values depends on the chemical composition of the fuel. In the case of pure carbon or carbon monoxide, the two heating values are almost identical, the difference being the sensible heat content of carbon dioxide between 150 °C and 25 °C ( sensible heat exchange causes a change of temperature, while ...

  6. Dihydrogen cation - Wikipedia

    en.wikipedia.org/wiki/Dihydrogen_cation

    Their use is standard practice for the designation of electronic states of diatomic molecules, whereas for atomic states the terms even and odd are used. The ground state (the lowest state) of + is denoted X 2 Σ + g [13] or 1sσ g and it is gerade. There is also the first excited state A 2 Σ + u (2pσ u), which is ungerade

  7. Here Are All the Big Differences Between the ‘Lessons in ...

    www.aol.com/big-differences-between-lessons...

    Here are all the notable differences between the Love in Chemistry book and TV show. 1. In the book: Elizabeth Zott is a chemist at the Hastings Research Institute, with her own lab technicians ...

  8. Liquid hydrogen - Wikipedia

    en.wikipedia.org/wiki/Liquid_hydrogen

    Liquid hydrogen bubbles forming in two glass flasks at the Bevatron laboratory in 1955 A large hydrogen tank in a vacuum chamber at the Glenn Research Center in Brook Park, Ohio, in 1967 A Linde AG tank for liquid hydrogen at the Museum Autovision in Altlußheim, Germany, in 2008 Two U.S. Department of Transportation placards indicating the presence of hazardous materials, which are used with ...

  9. Hydrogen bond - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_bond

    In chemistry, a hydrogen bond (H-bond) is a specific type of molecular interaction that exhibits partial covalent character and cannot be described as a purely electrostatic force. It occurs when a hydrogen (H) atom, covalently bonded to a more electronegative donor atom or group ( Dn ), interacts with another electronegative atom bearing a ...