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626 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
    resource.nlm.nih.gov/101714879
    ... 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
    resource.nlm.nih.gov/101772271
    ... 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
    resource.nlm.nih.gov/101671134
    ... asthma. A Cochrane review of five studies using negative ion generators and one with a positive 1++ ion generator ...
  4. NLM Digital Collections - "Preliminary Report and Forecast and Solar Geographical Activity" [Weekly], 1978 
    https://resource.nlm.nih.gov/101084435X304
    ... 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 ...
  5. NLM Digital Collections - Chemistry, general, medical, and pharmaceutical : including the chemistry of the U.S. ... 
    Publication: Philadelphia : Henry C. Lea, 1873
    resource.nlm.nih.gov/101619196
    ... Nitrogen N From viTpov (nitron), and ysnne (genesis), generator of nitre. Carbon C From carbo, coal, which is chiefly carbon. Chlorine Cl From (cliloros) green, the color of this element. Iodine I From iov (ion) a violet, and (eidos) likeness, in reference to the color of its vapor. Sulphur s From ...
  6. NLM Digital Collections - Chemistry, general, medical, and pharmaceutical : including the chemistry of the U.S. ... 
    Publication: Philadelphia : Henry C. Lea's Son & Co., 1883
    resource.nlm.nih.gov/101619205
    ... N From virgov (nitron), and ytve.au; (genesis), generator of nitre. Carbon C From ... likeness, in reference to the color of its vapor. Sulphur .... s From ...
  7. NLM Digital Collections - Chemistry, general, medical, and pharmaceutical : including the chemistry of the U.S. ... 
    Publication: Philadelphia : Lea Brothers & Co., 1899
    resource.nlm.nih.gov/101619228
    ... Nitrogen . . . N From virpov (nitron), and yivetns (genesis), generator of nitre. ... (eidos), likeness, in reference to the color of its vapor. Sulphur .... s From ...
  8. NLM Digital Collections - Programs of instruction for medical department enlisted technicians 
    Publication: Washington, D.C. : War Department, Army Service Forces, [1945]
    resource.nlm.nih.gov/14220160R
    ... 1 o U oJ t L 1 SCOPE REFERENCE TAT ION HRS. 1 2 3 o 5 6 7 8 9 10 1 1 12 13 1 >1 15 16 9ff. (Cont'd) (2) Practical Exercise Practice in assembly and disassem- bly of gasoline generator; locatior of faults and correction. DO AE ®0 ...
  9. NLM Digital Collections - Annotated bibliography on vital and health statistics 
    Publication: Washington, D.C. : National Center for Health Statistics : For sale by the Supt. of Docs., U.S. G.P.O., [1970]
    resource.nlm.nih.gov/0266430
    ... 1951-60. The figures indicate a highly significant negative correlation between ... references. (AA) 311. BIRRELL.J.H. tridents A note ...
  10. NLM Digital Collections - Text book (Volume 1) 
    Publication: St. Louis, Missouri : U.S. Army Medical Supply Services School, 1943-1944
    resource.nlm.nih.gov/14220980RX1
    ... negative charge by the loss or acquisition of negative electrons results in ... MOTOR GENERATOR A transforming device consisting of a motor mechanically ...
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