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715 results
  1. 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 ...
  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), October 2014
    ... asthma. A Cochrane review of five studies using negative ion generators and one with a positive 1++ ion generator ...
  4. 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 ...
  5. NLM Digital Collections - Text book (Volume 1) 
    Publication: St. Louis, Missouri : U.S. Army Medical Supply Services School, 1943-1944
    ... negative charge by the loss or acquisition of negative electrons results in ... MOTOR GENERATOR A transforming device consisting of a motor mechanically ...
  6. ... of ions through the air, positive ions downward, negative ions upward. In this global electrical circuit, unlike one that someone might set up to do some practical work, most of the resistance is in the generator. Upward of a million ohms (90 percent of ...
  7. NLM Digital Collections - Practical electrotherapeutics and diathermy 
    Publication: New York : The Macmillan Company, 1924
    ... and the plate of tin connected with the negative pole. This arrange- ment gives a ... of the generator, whether this be cells, accumulator, or a reducer ...
  8. NLM Digital Collections - Immunity in natural infectious diseases 
    Publication: Baltimore : Williams & Wilkins Company, 1924
    ... system becomes a mono-, bi-, tri-, or quadrivalent negative ion. The atom of hydrogen, for example, is formed ... and in adding an electron they become monovalent negative ions. With the atoms of magnesium (Mg) and of ...
  9. ... equals the sum of the charges of the negative ions. The two kinds of ions are in electrical ... positive ions to one electrode, and of all negative ions to the other. When the ions come in ...
  10. ... equals the sum of the charges of the negative ions. The two kinds of ions are in electrical ... positive ions to one electrode, and of all negative ions to the other. When the ions come in ...
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