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648 results
  1. ... the anode to the cathode. According to the theory of ions, the negative electrode (cathode) attracts the positive ions (H+) and ... represented thus: Zn+2H+->Zn-++H2 174 THE THEORY OF IONS The negative ion of the acid need not be shown ...
  2. NLM Digital Collections - British guideline on the management of asthma : a national clinical guideline 
    Publication: Edinburgh, Scotland : Scottish Intercollegiate Guidelines Network (SIGN), July 2019
    ... A Cochrane review of six studies, five using negative ion generators and one with a positive ion generator, found ...
  3. NLM Digital Collections - British guideline on the management of asthma : a national clinical guideline 
    Publication: Edinburgh, Scotland : Scottish Intercollegiate Guidelines Network (SIGN), September 2016
    ... asthma. A Cochrane review of five studies using negative ion generators and one with a positive 1++ ion generator ...
  4. ... the potassium giving positive ions and the chlorine negative ions. On the electron theory, positive and negative valence is distinguished, positive valence ...
  5. NLM Digital Collections - Chemistry for dental students (Volume 1) 
    Publication: London : John Wiley & Sons, Inc., 1923
    ... acid and a sub- stance capable of yielding negative hydroxyl ions being a base. With the Theory of Ionization before us, we must think of ... as ferric hydroxide, will be precipitated by the negative ion of an ... and if we accept the theory of valence given in the Introduction, p. 1, ...
  6. NLM Digital Collections - Roentgen diagnosis and therapy 
    Publication: Philadelphia : J.B. Lippincott Company, [1924]
    ... zinc through a con- necting wire. Elec- tric generators serve the same ultimate purpose as the gal- vanic cell, that is, to separate negative from positive ions and to cause them to travel in opposite ...
  7. ... in Chapter 11. In terms of the ionic theory, acids are substances which give positive hy- drogen ions in solution, associated with negative ions that may be either simple, as Clz, ...
  8. NLM Digital Collections - A bibliographical sourcebook of compressed air, diving, and submarine medicine (Volume 3) 
    Publication: Washington, D.C. : Research Division, Project X-427, Bureau of Medicine and Surgery, Navy Department, 1948-1966
    ... pletely disappeared when the tissue was exposed to negative ions. All of these studies were carried out on rabbit tissue, and the authors point out that no theory has yet been developed for the action of ...
  9. ... the positive kind, and of the gas the negative, these then becoming ions. Since Thomson's day the fact of this ionic dissociation has been amply demonstrated, but the cause of it has been shown to be different from that suggested by his theory. The elementary atoms which then were believed to ...
  10. NLM Digital Collections - Immunity in natural infectious diseases 
    Publication: Baltimore : Williams & Wilkins Company, 1924
    ... is necessary to accept the fact even though theory as yet offers no adequate explanation. formed of a single electron, and losing this, these atoms become positive monovalent ions, since there has been a loss of the elementary negative charge. In the chlorine (Cl), bromine (Br) and ...
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