Occupational distribution by place of work and place of residence /

Chiefly tables.

Telescopes and space exploration /

Mode of access: Internet.

Venous thrombosis and pulmonary embolism /

Mode of access: Internet.

Greater coal utilization : joint hearings before the Committees on Interior and Insular Affairs and Public Works, United States Senate, pursuant to S. Res. 45, the National fuels and energy policy study, Ninety-fourth Congress, first session on S. 1777.

"Serial no. 94-18 (92-108)"

Guidelines for residential oil-burner adjustments : oil-burner adjustment procedures to minimize air pollution and to achieve efficient use of fuel /

Mode of access: Internet.

First report on status and progress of noise research and control programs in the federal government /

"EPA 550/9-75-023."

High-latitude supplement to the URSI handbook on ionogram interpretation and reduction /

Mode of access: Internet.

Report and recommendations /

Cover title.

Feasibility study covering nationwide occupational safety and health manpower survey /

"Contract No. HSM 99-73-88."

Small business tax reform : joint hearings before the Select Committee on Small Business and the Subcommittee on Financial Markets of the Committee on Finance, United States Senate, Ninety-fourth Congress, first session.

Hearings held June 17-Nov. 13, 1975.

NIOSH contracts and research agreements /

"November 1974."

The Supplemental security income program for the aged, blind, and disabled.

Mode of access: Internet.

Black Lung Benefits Reform Act of 1975 [microform] : report (to accompany H.R. 10760).

Considers H.R. 10760, H.R. 8, H.R. 3333.

Seawater carbonate chemistry and calcification during incubation experiments with Mytilus edulis and Grassostrea gigas, 2006

Ocean acidification resulting from human emissions of carbon dioxide has already lowered and will further lower surface ocean pH. The consequent decrease in calcium carbonate saturation potentially threatens calcareous marine organisms. Here, we demonstrate that the calcification rates of the edible mussel (Mytilus edulis) and Pacific oyster (Crassostrea gigas) decline linearly with increasing pCO2. Mussel and oyster calcification may decrease by 25 and 10%, respectively, by the end of the century, following the IPCC IS92a scenario (?740 ppmv in 2100). Moreover, mussels dissolve at pCO2 values exceeding a threshold value of ?1800 ppmv. As these two species are important ecosystem engineers in coastal ecosystems and represent a large part of worldwide aquaculture production, the predicted decrease of calcification in response to ocean acidification will probably have an impact on coastal biodiversity and ecosystem functioning as well as potentially lead to significant economic loss.