The human factor in innovation and productivity [microform] : hearings (including the record of a seminar sponsored by the American Association for the Advancement of Science on July 28, 1981) before the Subcommittee on Science, Research, and Technology of the Committee on Science and Technology, U.S. House of Representatives, Ninety-seventh Congress, first session, September 9, 10, 11, 15, 16, 17, 1981.

"No. 51."

Statement of John L. Lewis : in opposition to the Taft-Hartley act before the Committee on Labor and Public Welfare, United States Senate, Washington, D. C., April 24, 1953.

Title on cover: Return American business and labor to the bargaining table.

The Medical Advisory Committee of the President's Committee on Employment of the Handicapped presents alcoholism and substance abuse, trends and choices : a report of the proceedings of a panel discussion held at the annual meeting of the President's Committee on Employment of the Handicapped, May 4, 1983, Washington, D.C. /

Cover title: Alcoholism and substance abuse, trends and choices.

Federal timber sales contracts extensions and terminations [microform] : hearings before the Subcommittee on Forests, Family Farms, and Energy of the Committee on Agriculture, House of Representatives, Ninety-seventh Congress, first session, on H.R. 4932 and H.R. 5012, October 15, 1981 and November 23, 1981, Washington, D.C., December 3, 1981, Roseburg, Oreg.

"Serial no. 97-QQ."

Proceedings of the Third Annual Alcoholism Conference of the National Institute on Alcohol Abuse and Alcoholism, June 20-22, 1973, Washington, D.C. /

Mode of access: Internet.

Economic and social conditions in Puerto Rico : hearings before a Subcommittee of the Committee on Territories and Insular Affairs, United States Senate, Seventy-seventh Congress, second session, pursuant to S. Res. 309, a resolution authorizing an investigation of economic and social conditions in Puerto Rico, Washington, D.C. December 7, 8, 9, and 17, 1942.

Dennis Chavez, chairman of subcommittee.

Coastal Barrier Resources Act : hearings before the Subcommittee on Environmental Pollution of the Committee on Environment and Public Works, United States Senate, Ninety-seventh Congress, first and second sessions on S. 1018 ... August 13, 1981-Providence, R.I., October 21, 1981-Washington, D.C., February 3, 1982-Washington, D.C.

Item 1045-A, 1045-B (microfiche).

PHYTOPLANKTON AND NUTRIENT DYNAMICS WITH A FOCUS ON NITROGEN FORM IN THE ANACOSTIA RIVER, IN WASHINGTON, D.C. AND WEST LAKE, IN HANGZHOU, CHINA

Nutrient loading has been linked with severe water quality impairment, ranging from hypoxia to increased frequency of harmful algal blooms (HABs), loss of fisheries, and changes in biodiversity. Waters around the globe are experiencing deleterious effects of eutrophication; however, the relative amount of nitrogen (N) and phosphorus (P) reaching these waters is not changing proportionately, with high N loads increasingly enriched in chemically-reduced N forms. Research involving two urban freshwater and nutrient enriched systems, the Anacostia River, USA, a tributary of the Potomac River feeding into the Chesapeake Bay, and West Lake, Hangzhou, Zhejiang Province, China, was conducted to assess the response of phytoplankton communities to changing N-form and N/P-ratios. Field observations involving the characterization of ambient phytoplankton communities and N-forms, as well as experimental (nutrient enrichment) manipulations were used to understand shifts in phytoplankton community composition with increasing NH4+ loads. In both locations, a >2-fold increase in ambient NH4+:NO3- ratios was followed by a shift in the phytoplankton community, with diatoms giving way to chlorophytes and cyanobacteria. Enrichment experiments mirrored this, in that samples enriched with NH4+ lead to increased abundance of chlorophytes and cyanobacteria. This work shows that in both of these systems experiencing nutrient enrichment that NH4+ supports communities dominated by more chlorophytes and cyanobacteria than other phytoplankton groups.

Economic/social impact of occupational noise exposure regulations : testimony presented at the OSHA hearings on the Economic Impact of Occupational Noise Exposure, Washington, D.C.

Mode of access: Internet.

Call to action : better nutrition for mothers, children, and families : December 6-8, 1990, Washington, D.C. /

"This publication has been produced by the National Center for Education in Maternal and Child Health under its cooperative agreement (MCU-117007) with the Maternal and Child Health Bureau, Health Resources and Services Administration, Public Health Service, U.S. Department of Health and Human Services"--Verso of t.p.

Public hearing on proposed landfill disposal guidelines : May 15, 1979, Washington, D.C., transcript.

Sponsored by EPA, Office of Solid Waste.

Fourth United States-Japan Governmental Conference on Solid Waste Management, March 12-13, 1979, Washington, D.C.

Conference hosted by Office of Solid Waste, U.S. Environmental Protection Agency.

Nuclear cross sections and technology : proceedings of a conference, Washington, D.C., March 3-7, 1975 /

Conference sponsored by the Reactor and Shielding Division of the American Nuclear Society and others.

1979 food and agricultural outlook : papers presented at the Food and Agricultural Outlook Conference, held in Washington, D.C., November 13-16, 1978 /

At head of title : 95th Congress, 2d session. Committee print.

[Map of the proposed enlargement and replanning of the Capitol grounds, Washington D.C.].

India ink on recto and orange wash on verso.