Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search help
136 results
  1. NLM Digital Collections - Papers and Proceedings of the Surgeon General's Conference on Agricultural Safety and Health 
    Publication: Centers for Disease Control (U.S.), September 1992
    resource.nlm.nih.gov/101584932X365
    ... differences in the 3,000 to 8,000 Hz range, again where you might expect noise exposure to start showing. The 50-year-old group had signif- icant differences at ...
  2. NLM Digital Collections - Papers and Proceedings of the Surgeon General's Conference on Agricultural Safety and Health .... 
    Publication: National Institute for Occupational Safety and Health, September 1992
    resource.nlm.nih.gov/101584932X378
    ... differences in the 3,000 to 8,000 Hz range, again where you might expect noise exposure to start showing. The 50-year-old group had signif- icant differences at ...
  3. NLM Digital Collections - Proposal for a Genetics Research Center (pages 51-75) 
    Publication: Produced: 1 June 1973
    resource.nlm.nih.gov/101584906X17936
    ... Efficiencies Typical Operation Condition: Scan from m/e 50 to 500 in 4500 ... of n ions/msec) bandwidth, Hz ions; bandwidth Control and integrate 8 N/A ...
  4. NLM Digital Collections - Proposal for a Genetics Research Center 
    Publication: Produced: 1 June 1973
    resource.nlm.nih.gov/101584906X17932
    ... Efficiencies Typical Operation Condition: Scan from m/e 50 to 500 in 4500 ... of n ions/msec) bandwidth, Hz ions; bandwidth Control and integrate 8 N/A ...
  5. NLM Digital Collections - Cytochemical Studies of Planetary Microorganisms: Explorations in Exobiology 
    Publication: Produced: [April - September 1968]
    resource.nlm.nih.gov/101584906X15560
    ... peak heights of coherent noises (i.e., 60 hz and induced noises of the digital interface). The borad band Johnson ... of detecting orifice P = resistivity of the medium (~ 50 ohm-cm for normal saline) ... current of 0.4 ma the noise level of the apparatus was equivalent to a ...
  6. NLM Digital Collections - Additions to the Materia medica pura 
    Publication: New-York : William Radde ...; London : H. Balliere ..., 1846
    resource.nlm.nih.gov/61820550R
    ... third (Hz. 3), 30 drops for the fourth (Hz. 4), 50 drops for the fifth (Hz. 5), and one drop of the third for ... Hk. 3). Dizziness and dulness in the forehead (Hz. 2, 3). 50. Violent, drawing, tearing pain in the forehead, in ...
  7. NLM Digital Collections - Preliminary Subject File and Hand Notes, 1947-1953 
    https://resource.nlm.nih.gov/101084435X140
    ... ereck Cone _€_pervsiitent leaves, See Firs. i | : a hz 2s dia | _ $5.50.A YEAR fi : cea | : am / ASTRONOMY Science News ... Am- bler). Menzel, Donald H., Ed. The Radio Noise Spectrum. Harvard Univ. Press, Cambridge, Mass., 1960. 191 pp. $7.50. Minkoff, G. J. Frozen Free Radicals. Interscience, New ...
  8. NLM Digital Collections - Transcript of oral history with Joshua Lederberg, Harriet Zuckeman, and Robert K. Merton 
    Publication: Produced: 26 August 1976
    resource.nlm.nih.gov/101584906X13252
    ... my conception there is, that in certain JL HZ JL 50 university environments, despite the generic pressure imposed benevolently ...
  9. NLM Digital Collections - Hospital literature index (Volume 41) 
    resource.nlm.nih.gov/7807587X28
    ... editorial] Anesth Analg 1985 Sep;64(9):849-50 Bovenzi M, Collareta A: Noise levels in a hospital. Ind Health 1984;22( ... Health Care Mark 1985 Winter;5(l):47-50 Hendrick RE, Newman FD, Hendee WR: MR imaging technology: maximizing the signal-to-noise ratio from a single tissue. Radiology 1985 Sep; ...
  10. NLM Digital Collections - Hospital literature index (Volume 35) 
    resource.nlm.nih.gov/7807587X22
    ... PM, et al. Ciba Found Symp (59):139-50, 1978 Clinical engineering practices: noise—the new hospital contaminate. Hargest TS. Clin Eng ... see Noelker L Hargest TS: Clinical engineering practices: noise—the new ... marriage. Clin Eng 6(4):47-50, Aug-Sep 78 Hargreaves A, Krell GI, Blakeney ...
first · previous · 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · next · last