Health & Environmental Research Online (HERO)


ISA-PM (current)


14,194 References Were Found:

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

General Motors sulfate dispersion experiment: Summary of EPA measurements

Authors: Wilson, WE; Spiller, LL; Ellestad, TG; Lamothe, PJ; Dzubay, TG; Stevens, RK; Macias, ES; Fletcher, RA; Husar, JD; Husar, RB; Whitby, KT; Kittelson, DB; Cantrell, BK (1977) Journal of the Air Pollution Control Association 27:46-51. HERO ID: 45142

[Less] In October 1975, General Motors sponsored a study of sulfate exposures utilizing a fleet of catalyst . . . [More] In October 1975, General Motors sponsored a study of sulfate exposures utilizing a fleet of catalyst equipped motor vehicles in controlled, simulated, highway driving conditions. This paper reports some EPA sponsored measurements. Sulfuric acid aerosol, in the Aitken nuclei mode, geometric mean diameter (GMD) of about 0.02 Ám, is emitted in the exhaust of catalyst equipped vehicles. Measurement of sulfuric acid 20 m downwind of the roadway indicated a lack of complete neutralization by ammonia. When the wind was perpendicuiar to the roadway there was little coagulation of sulfuric acid Into the accumulation mode, GMD of about 0.24 Ám. From measurement of the mass flow rate of aerosol sulfur from the simulated freeway, the aerosol sulfur emission rate per car was determined to be 3.5 + 0.8 Ág/m (5.6 + 1.3 mg/mile) corresponding to a 12 + 3% conversion of fuel sulfur into emitted aerosol sulfur.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Determination of submicron atmospheric aerosol size distributions by use of continuous analog sensors

Authors: Sverdrup, GM; Whitby, KT (1977) Environmental Science and Technology 11:1171-1176. HERO ID: 3266377


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

On the nature and origins of visibility-reducing aerosols in the Los Angeles air basin

Authors: White, WH; Roberts, PT (1977) Atmospheric Environment 11:803-812. HERO ID: 33983

[Less] #Simultaneous measurements of the light-scattering coefficient and chemical composition of ambient aerosols . . . [More] #Simultaneous measurements of the light-scattering coefficient and chemical composition of ambient aerosols were made during selected smog episodes in the Los Angeles air basin. These data are statistically analyzed to determine the effective scattering efficiencies of the major secondary aerosol species. The individual scattering efficiencies are then used to estimate the contributions of major sources of reactive gases to the reduction of visibility in Los Angeles. Sulfate and nitrate compounds appear to have scattered more light at a given mass concentration than did other chemical fractions of the aerosol. The observed relationship of SO2 and NOx concentrations to the concentrations of tracers for major source types was consistent with existing inventories of SO2 and NOx emissions in the basin. Because of the high scattering efficiency of sulfates, the estimated contribution of large stationary sources of SO2 to the reduction of visibility was comparable with that of the automobile.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Effect of SO2 on control of breathing in anesthetized cats

Authors: Grunstein, MM; Hazucha, M; Sorli, J; Milic-Emili, J (1977) Journal of Applied Physiology 43:844-851. HERO ID: 71445

[Less] In seven anesthetized tracheotomized cats we studied the acute respiratory effects of SO2 inhalation . . . [More] In seven anesthetized tracheotomized cats we studied the acute respiratory effects of SO2 inhalation at different steady-state levels of arterial CO2 tension (Paco2). During room air breathing, SO2 (0.05%) addition caused a progressive reduction in tidal volume (VT) and increases in both respiratory frequency (f) and pulmonary resistance (RL). Atropine sulfate abolished the bronchoconstriction response to SO2 and thus permitted the study of the influence of SO2 on VT and f in the absence of constricted airways. Despite marked reductions in the VT VS. PaCO2 relationships with SO2 exposure after atropine, the relationship between pulmonary ventilation (VE) and PaCO2 was not signifcantly altered. This was the case since SO2 caused solely a reduction in inspiratory duration (Ti), affecting neither the mean rate of rise of inspiratory activity (i.e., VT/Ti) nor the relationship between Ti and breath duration. Thus, airways irritation with SO2 produced rapid, shallow breathing characterized by a shortening of inspiratory and total respiratory cycle times with no change in the rate of development of inspiratory activity. The findings suggest an influence exclusively concerned with the timing of inspiration. Perhaps premature onset of inspiratory activity accounts for the observed effects.

Technical Report
Technical Report

Mutagenic activity of airborne particulate organic pollutants

Authors: Pitts, JN, Jr; Grosjean, DM; Winer, AM; Lloyd, AC; Doyle, GJ (1977) Riverside, CA: University of California, Statewide Air Pollution Research Center. HERO ID: 3222056


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Radioimmunoassay for adenosine 3', 5'-cyclic monophosphate and guanosine 3',5'-cyclic monophosphate in human blood, urine, and cerebrospinal fluid

Author: Goldberg, ML (1977) HERO ID: 3227795

[Less] I describe a highly sensitive and very specific assay for cyclic AMP and cyclic GMP in body fluids. . . . [More] I describe a highly sensitive and very specific assay for cyclic AMP and cyclic GMP in body fluids. An adaptation of the method of Harper and Brooker [j. cyclic Nucleotide Res. 1,207 (1975)], its advantage lies in the fact that the simple acetylation of the samples--a procedure developed by these workers--greatly increases specificity and sensitivity beyond those of previous methods and permits the measurement of femtomole quantities of both cyclic nucleotides without prepurification. Because the range of the cyclic AMP assay is 20-200 fmol, and that of cyclic GMP 10-15 fmol, experiments can be performed with use of only microliters of fluid. The method requires no extraction and thus no complicated corrections are necessary for analytical recovery.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

Solubilization and characterization of hormone- responsive phosphodiesterase activity of rat fat cells

Authors: Lovell-Smith, CJ; Manganiello, VC; Vaughan, M (1977) HERO ID: 3227796

[Less] Fat cells particulate phosphodiesterase activity can be solubilized in high yield (80--100%) in a buffer . . . [More] Fat cells particulate phosphodiesterase activity can be solubilized in high yield (80--100%) in a buffer system (30 mM Tris - HCl, pH 8.0) containing non-ionic detergents (0.1% Brij 30, 1.0% Triton X-100), salt (3.0 mM MgSO4, 5.0 mM NaBr) and dithiothreitol (5.0 mM). Polyacrylamide gel electrophoresis of the solubilized enzyme activity indicated the presence of two bands of activities of different electrophoretic mobilities, both of which hydrolyzed cyclic AMP and cyclic GMP. The solubilized activity eluted from DEAE Bio-Gel columns as a somewhat broad profile with at least two peaks of activity. Activity against both cyclic AMP and cyclic GMP eluted in similar but not identical patterns. The solubilized enzyme and DEAE column eluates wxhibited low (less than 1 micronM) Michaelis constants for cyclic AMP and cyclic GMP. In addition, the increases in phosphodiesterase activity induced by incubation of intact fat cells with insulin or adrenocorticotropic hormone are maintained in the solubilized state.

The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

[The care of diabetics in the GDR (author's transl)]

Authors: Bibergeil, B; Schliack, V (1977) HERO ID: 3227797


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

[Pontobulbar "locomotor strip"]

Authors: Shik, ML; Iagodnitsyn, AS (1977) HERO ID: 3227812


The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
Peer Reviewed Journal Article

[The postvagotomy syndrome (author's transl)]

Author: Stremmel, W (1977) HERO ID: 3227813

[Less] The postvagotomy syndrome following the operative section of the vagus nerves is characterized by diarrhoea. . . . [More] The postvagotomy syndrome following the operative section of the vagus nerves is characterized by diarrhoea. The incidence of diarrhoea after truneal vagotomy is about 25%, after selective vagotomy 15% and after proximal selective vagotomy only 2%. The possible pathogenetic factors are accelerated passage through the gut, disturbed bile acid metabolism, the bacterical inflammation of the small intestine, and enterohormonal dysregulation. A cholongenetic diarrhoea is probable because after vagotomy the excretion of bile acids is increased and the diarrhoea is interrupted after administring cholestyramin, which absorbs the bile salts in the intestine. In addition the pathogenetic role of an impaired function of the ileocecal valve should be discussed.