Research in the fields of civil engineering, mechanical engineering, instrumentation.

Mode of access: Internet.

TVA and the Clinch River breeder reactor project : hearing before the Subcommittee on Regional and Community Development of the Committee on Environment and Public Works, United States Senate, Ninety-eighth Congress, first session, April 20, 1983.

Includes bibliographical references.

Origins of the TVA; the Muscle Shoals controversy, 1920-1932.

Bibliography: p. 316-328.

TVA Consumer Protection Act : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Sixth Congress, first session, on S. 1323 ... October 6, 1999.

"Printed for the use of the Committee on Environment and Public Works."

A Study of Methods Used in Measurement and Analysisof Sediment Loads in Streams

Mode of access: Internet.

Facts About TVA Operations

Mode of access: Internet.

Period determination in the food-entrainable and methamphetamine-sensitive circadian oscillator(s)

Daily rhythmic processes are coordinated by circadian clocks, which are present in numerous central and peripheral tissues. In mammals, two circadian clocks, the food-entrainable oscillator (FEO) and methamphetamine-sensitive circadian oscillator (MASCO), are "black box" mysteries because their anatomical loci are unknown and their outputs are not expressed under normal physiological conditions. In the current study, the investigation of the timekeeping mechanisms of the FEO and MASCO in mice with disruption of all three paralogs of the canonical clock gene, Period, revealed unique and convergent findings. We found that both the MASCO and FEO in Per1(-/-)/Per2(-/-)/Per3(-/-) mice are circadian oscillators with unusually short (similar to 21 h) periods. These data demonstrate that the canonical Period genes are involved in period determination in the FEO and MASCO, and computational modeling supports the hypothesis that the FEO and MASCO use the same timekeeping mechanism or are the same circadian oscillator. Finally, these studies identify Per1(-/-)/Per2(-/-)/Per3(-/-) mice as a unique tool critical to the search for the elusive anatomical location(s) of the FEO and MASCO.

Proposed dams on Missouri river watershed? Navigation, hydro-electric, flood control, irrigation

Mode of access: Internet.

Progress

The Savannah Valley Authority publishes this quarterly newsletter giving an update on various projects, meetings and developments going on in the Savannah Valley Region. This issue covers among other things, Savannah Lakes Village, Lake Russell Project, utility planning and lake levels.

Progress

The Savannah Valley Authority publishes this quarterly newsletter giving an update on various projects, meetings and developments going on in the Savannah Valley Region. This issue covers among other things, Savannah Lakes Village progress, gold mining, Georgia South Carolina development groups and a freshwater coast promotion.

Progress

The Savannah Valley Authority publishes this quarterly newsletter giving an update on various projects, meetings and developments going on in the Savannah Valley Region. This issue covers among other things, the Russell Project land appraisals, Savannah Lakes Village, wastewater treatment needs and regional grants.

Preliminary delineation and description of the regional aquifers of Tennessee--Basal sandstone west of the Valley and Ridge Province / by J.V. Brahana ... [et al.] ; prepared in cooperation with the U.S. Environmental Protection Agency ; [prepared by U.S. Geological Survey].

Shipping list no.: 86-886-P.

Effects of an introduced clam (Corbicula) on water quality in the Tennessee River Valley. Presented before the second annual Sanitary Engineering Conference, Vanderbilt University, Nashville, Tenn., May 30-31, 1963.

Mode of access: Internet.

A Microscopic Study of Iron and Manganese Oxide Distribution in Soils from East Tennessee (U.S.A.)

Soils and saprolites developed from interbedded shales and limestones of the Conasauga Group are widespread in the Valley and Ridge Province of East Tennessee. Thin sections from four soil profiles were examined by petrographic and scanning electron microscopy including backscatter electron and energy-dispersive X-ray analyses. Iron and manganese released by weathering had migrated differentially downward and precipitated as crystalline and noncrystalline oxides. Oxides were observed as nodules, granular particulates, pore fillings, and coatings on other minerals, packing voids, vesicles, channels, and chambers. Iron oxides formed predominantly as coatings on packing-void walls and on laminated clays in vesicles and channels. Manganese oxides occurred as an early replacement phase of packing voids and of fracture-filling carbonate minerals. Iron oxides were dominant in moderately well-drained and oxidized horizons of the soil solum, whereas manganese oxides were abundant in the oxidized and moderately leached saprolite zone where the water table fluctuates seasonally. Therefore, a manganese enrichment zone, on a bulk soil basis, occurred generally below the iron oxide zone in the soil profile. Such differential migration and accumulation of iron and manganese have been controlled by localized soil microenvironments. Micromorphologic features observed in this study are important in land-use evaluation for hazardous waste disposal. © 1990.