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Now showing items 121-130 of 256
Evaluating the Systems-Process Model for Program Evaluation : a three-level interim evaluation of the High Plains Manpower Development Project
(1977)
The vast array of evaluation models (or processes of evaluation) which have been developed for the evaluation of social programs has led to confusion. Amidst all of this confusion remains the fact that a very important ...
Population characteristics of estuarine decapod crustaceans in intake and discharge areas of the Cedar Bayou Electric Power Station before and during construction and operation
(1977)
Crustacean abundance, distribution and taxonomic composition were determined intake (Tabbs Bay and Cedar Bayou) and discharge (Trinity Bay) areas before operation (October 1969 through September 4, 1970), during operation ...
Interactive effects of physical factors and hydrocarbon exposure on the survival, development rate and growth of the mud crab Rhithropanopeus harrisii and the horseshoe crab Limulus polyphemus
(1977)
Embryos and juveniles of the horseshoe crab, Limulus polyphemus were exposed continuously to 0, 5, 10, 25 and 50% Water-Soluble Fractions (WSF) of no. 2 fuel oil at temperatures of 20°, 25° or 30° C and one salinity, 32 ...
Effects of fault-gouge on the frictional properties of rocks : an experimental study
(1977)
The effects of fault gouge on the sliding behavior of rocks are studied experimentally to gain a better understanding of the mechanism of shallow focus earthquakes along pre-existing natural faults. Nearly 200 specimens ...
Growth, macromolecular syntheses and organophosphate insecticide metabolism in Dictyostelium discoideum exposed to insecticides and ultraviolet light
(1977)
Survival studies performed on the Ax-2 strain of Dictyostelium discoideum demonstrated that the vegetative cells were resistant to UV light at 254 nm. The survival curve began with a broad shoulder and eventually declined ...
Effects of silicic acid analogs on ailica body production and wall ultrastructure in stinging cells of Urtica pillulifera
(1977)
Silicification and cell wall structure in the stinging cell of Urtica pillulifera were studied by electron microscopy. Plants were grown in hydroponic solutions containing various silicon-containing compounds. These compounds ...
Coleridge's moral philosophy, 1795-1800, and the Symbolism of "Christabel"
(1977)
In 1797 Coleridge's main philosophical concern involved the "causae causarum": the fundamental causes of evil and suffering. The immediate physical causes of evil that had earlier held his attention, such as Property, ...
Purification and characterization of ADPGlucose pyrophosphorylase A from maize endosperm
(1977)
ADPGlucose pyrophosphorylase A was purified 126-fold to homogeneity from maize endosperm. The molecular weight estimated by gel filtration was 375,000 and 400,000 by disc acrylamide electrophoretic techniques. SDS disc gel ...
The cardiovascular effects of oleandrin in the dog
(1977)
The effects of oleandrin, a cardiac glycoside, were studied on a number of hemodynamic parameters and on left ventricular contractility in five groups of morphine-chloralose anesthetized dogs with a "normal" heart and ...
Analysis of the herbaceous vegetation in a Trachypogon savannah exclosure in the high Llanos near Calabozo, Venezuela
(1977)
The objectives of this study were to a) describe the present herbaceous cover at the Biological Experiment Section (BES), b) study association of vegetation and soil, c) identify tentative range sites, and d) evaluate ...