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9 results
  1. ... 19(4):63-9, 71 What is a HEPA (high-efficiency particulate air) respirator and what does it have to ... Jan;19(l):70-3 What is a HEPA (high-efficiency particulate air) respirator and what does it have to ...
  2. ... Ag 1 67 Health, Education, and Welfare favors high-efficiency filters over ultraviolet light. (N) Hospitals 43: 88 My ... 3: 29-34 O 68 Laminar flow and HEPA filter. Hosp Pharm (Lippincott) 3: 3+ Ja 68 Laminar- ...
  3. ... 1939, No. 6, 91.- Bowen, E. J. Light filters for the mercury lamp. J. Chem. Soc, Lond., 1935, ... L. J. High efficiency mercury and sodium vapor lamps. J. Optic Soc. ...
  4. ... Zellforsch., 1938-39, 22: 483-6.— Claude, A. Particulate components of cytoplasm. Sympos. Quant. Biol., 1941, 9: ... of chroma- tography to the segregation of subcellular particulates. Cancer Res., 1949, 9: 614.—Schmidt, W. J. ...
  5. NLM Digital Collections - Review of intramural research (1960) 
    Publication: [Bethesda, Md.] : U.S. Dept. of Health, Education, and Welfare, Public Health Service, National Institutes of Health
    ... Studies progress on the organic fractions of the particulate phase of urban air pollutants, as part of ... of the nucleolus. At five to seven hours, particulate accumulation of antigen in the cytoplasm was noted. ...
  6. ... 1922, vi, 851-870. ----- The pulmonary aspiration of particulate matter and pulmonary tuberculosis produced experimentally by aspiration. ... 192; 233— Caldwell (F. W.) & Fales (E. N.). High efficiency air flow. J. Am. Soc. Heat. & Ventil. Engin, ...