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research and development; genetic resources; nontarget organisms; Agricultural Research Service; biotechnology; gene flow; risk assessment; pest resistance; issues and policy; databases; United States
... Computer techniques have applications in locating and retrieving information from sample survey data banks Allen Wilcox is a consultant to Oak Ridge National Laboratory, where Davis Bobrow is Senior Social Scientist in the Direc tor's Division. Douglas Bwy is Assistant Professor of Politi cal Science, Western Reserve University. ...
databases; fabrics; information services; information storage; textile fibers
Abstract:
... The role of an industry information storage and retrieval (ISR) system for published material is related to the total-information flow network. Suggestions are made for reorganization of literature and conferences to serve major user needs in groupings, form of presentation, and timing. Consolidation around natural cores of basic technology is recommended for internal efficiency and to facilitate ...
computer software; computer techniques; computers; databases; decision making; forest surveys; foresters; forests; information processing; information systems; statistics; trees; Canada; United States
Abstract:
... Forest surveys based on permanent plots possess peculiarities unusual in other computer applications. The enormous amount of information (30,000 plots, 1,000,000 trees), must be checked, corrected. Relevant information must be selected from the data bank for statistical computations. Because information for decision-making changes, the computer programs must be flexible.This article explains how t ...
... Cotton (Gossypium hirsutum L.) seedling growth during emergence was studied under controlled conditions to estimate the main and interacting effects of soil temperature, moisture, and physical impedance on hypocotyl and radicle elongation. This information additionally provided a data base for the development of an elongation model for an emerging cotton hypocotyl which is not included in this rep ...
Universal Soil Loss Equation; agricultural research; climatic factors; crop management; crop yield; crops; databases; environmental degradation; growing season; land use planning; natural resources; soil; soil productivity; soil surveys; surface mining; tillage; water conservation; water use efficiency; weather; United States
Abstract:
... Soil and crop management practices have been used for centuries in some parts of the world, but in the United States it was not until the 1930's that the public became concerned over the abuse of land. In response a series of emergency and long-range programs were initiated on the conservation and wise use of natural resources. Information generated by the publicly supported agricultural research ...
adults; air temperature; body temperature; correlation; databases; heat; hibernation; juveniles; lizards; regression analysis; seasonal variation; summer; winter; Africa
Abstract:
... We discuss seasonal variation in thermoregulatory behavior and its consequences on body temperature for 12 species of diurnal lizards in the southern Kalahari semidesert of Africa and also evaluate several methods of attempting to document thermoregulatory behavior using a descriptive data base. Lizards vary time of activity among seasons, which limits the variation in ambient conditions actually ...
... The coefficient of linear extensibility (COLE) measures soil swelling of natural soil clods and was designed for use in soil genesis and characterization studies. In an attempt to quantify engineering ratings of shrink-swell potential and to enhance nonagricultural use of soil survey data COLE has been statistically related to arbitrary PVC values. However, the data used to calculate COLE can also ...
... Data bases with possible references to drainage are listed, and a procedure for compiling an individually tailored bibliography to cover a specific aspect of drainage from computer based data sources on retrieval systems is described. The searching process is outlined in steps and the techniques of on line - off line and current awareness - retrospective searching are outlined. Sample computer pri ...
... This research was motivated by a need to predict crop yields on a large-area basis without benefit of direct measurement of plant characteristics. Mathematical models were developed that require only a modest amount of historical data for application on a real-time basis to geographical regions other than the one where the models were developed. The models, one for winter wheat (Triticum aestivum ...
... This research was conducted as part of the federal interagency Biological and Climatic Effects Research (BACER) Program established to corroborate research findings related to UV-B radiation effects on plants and to expand the available data base. Ultraviolet B (UV-B, 280–320 nm) radiation effects on gas diffusion through the upper (more exposed) vs. lower leaf surfaces of two snap bean varieties ...
United States Environmental Protection Agency; Zea mays; agricultural watersheds; animal wastes; corn; data collection; databases; equations; farmers; farms; fecal bacteria; minimum tillage; nitrates; nitrite nitrogen; no-tillage; probability; regression analysis; streams; waste management; water pollution; water quality; Maryland
Abstract:
... The U.S. Environmental Protection Agency's computer data base (STORET) was employed to retrieve stream water quality data for a 9-year period on an agricultural watershed in Maryland, 40 km northwest of Washington, D.C. Most of the farms in the area are large dairy operations that have waste management and storage facilities. During the study period, farmers increased their use of no-till and mini ...
Fabaceae; computers; databases; hardwood; legumes; wood anatomy; Australia; South East Asia
Abstract:
... A wood anatomical key based on macroscopic and microscopic features has been developed for identification of the commercial Leguminosae of southeast Asia and Australia. All anatomical details are in accord with the standard list of characters suitable for computerised hardwood identification. Data on 39 species of 13 genera are included, which have been entered into the computer data base housed a ...