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C Rice

Publications and source records attributed to C Rice.

67 records · Page 4Linked to original sources
PubMed1981

Asbestos in Vermont schools: findings of a statewide on-site investigation.

Materials containing asbestos were found in 75 per cent of 336 Vermont Schools constructed or renovated between 1946 and 1974, with two-fifths of the materials in student exposure areas. Findings from visits to all schools contrasted with an earlier investigation relying on self-reporting. Of 105 schools with student exposure disclosed by the current survey, only eight had been identified in the earlier effort. Ceiling tiles, previously not believed to contain substantial asbestos material, constituted a source of student exposure in 36 schools.

Asbestos↗
PubMed1979

Exposure to lead in firing ranges.

Members of law enforcement agencies were examined for adverse health effects caused by their activities in firing ranges and exposure to lead. Central nervous system and gastrointestinal symptoms were prominent and correlated with blood lead and zinc protoporphyrin levels. Half the group had blood lead levels exceeding 40 microgram/dL, and four (5%) exceeded 60 microgram/dL. Environmental surveys of three firing ranges indicate that indoor facilities with insufficient ventilation may have considerable air lead concentrations with levels up to 900 microgram/cu m or 4.5 times the current Occupational Safety and Health Administration standard for an eight-hour shift. Evaluation of lead effects should be taken into account in medical surveillance programs of firearms instructors. Zinc protoporphyrin determination has proved a suitable and practical way to assess biological effects among exposed persons and should be available at medical facilities responsible for the health of indoor firing range employees.

Adult↗
PubMed1976

Clinical studies of styrene workers: initial findings.

Styrene monomer is a high volume chemical used chiefly in production of polystyrene. A clinical survey of 493 production workers was undertaken at the oldest and largest monomer production, polymerization, and extrusion facility in the U.S. Relative exposure durations and levels were obtained from occupational histories. Significant differences between the high and low exposure groups were found with regard to history of acute prenarcotic symptoms, acute lower respiratory symptoms, prevalence of FEV 1/FV less than 75 per cent, and elevated GCTP. Other liver function tests, chest x-ray, FVC less than 80 per cent, and hematological parameters showed no distinct pattern. A concomitant mortality study has been mounted and is in progress.

Adult↗
PubMedDate not supplied

Blastocyst-endometrial interactions and protein synthesis during pre-implantation development in the pig studied in vitro.

A co-culture technique is described for the study in vitro of interactions between elongated blastocyst tissue and endometrium in the pig. Culture conditions which were optimal for blastocyst protein synthesis were determined and tissue survival was assessed after 48 h in culture. A defined medium was adopted consisting of medium 199 supplemented with insulin and antibiotics. Blastocyst protein synthesis measured by labelled leucine incorporation was not enhanced by the addition of serum, suggesting either that it was not required for optimal protein synthesis ar that active substances of maternal (endometrial) origin were already adsorbed on to embryonic tissues. Endometrial explants co-cultured with blastocyst tissue enhanced blastocyst protein synthesis approximately fourfold when intrinsic protein synthesis was low, but had little effect if it was already high. Blastocyst explants in which protein synthesis was enhanced by co-culture with endometrium demonstrated an increased synthesis of prealbumin proteins with molecular weights of 25 000 to 30 000.

Animals↗
PubMedDate not supplied

A comparison sample validation of "your workplace": an instrument to measure perceived alcohol support and consequences from the work environment.

This paper addresses the psychometric properties of Your Workplace (YWP), an instrument developed to measure perceived influence of workplace norms and attitudes on alcohol involvement and the experience of adverse consequences. Data were collected from a large, geographically dispersed sample of aftercare and outpatients recruited for a multisite clinical trial of alcoholism treatments, Project MATCH. Administration of YWP at the baseline assessment was restricted to workforce participants. A confirmatory factor analysis addressed instrument structure. Internal consistency and concurrent association between measures of general social support, alcohol specific support, and alcohol involvement were examined. YWP scales were found to have adequate internal consistency reliability. Correlation between YWP scales and concurrent measures of alcohol involvement were among the strongest found. Identification of workplace influences on alcohol involvement allows refined assessment and fosters a comprehensive approach to treatment of alcoholism.

Adult↗