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Now showing items 31-40 of 49
Studies on the Mechanism of Activation of the Ecdysial Glands by Corpora Allata in Brainless Diapausing Pupae of the Cecropia Moth (Hyalophora cecropia (L.)
(1978)
Juvenile hormone I acid can activate the ecdysial glands thereby initiating adult development in brainless, diapausing pupae. Dauerpupae when implanted with two pairs of corpora allata from 1-3 day old adult male cecropia ...
Superconductivity in Amorphous Transition Metal Thin Films
(1978)
The superconducting transition temperature of a La.₈₀Ga.₂₀ alloy thin film prepared by the vapor-quench technique has been measured. An annealing curve of film resistivity as a function of temperature is inconclusive as ...
A Direct Spectrophotometric Assay for Arginase
(1978)
This report describes the develpment of a direct, spectrophotometric assay for arginase. The assay may be conveniently used at high substrate concentrations (8Km) for assaying crude sources of arginase, and for steady-state ...
The "Search for Happiness" in Selected Eighteenth-Century Literary Works
(1978)
Pope's "Essay on Man," Voltaire's Candide, and Johnson's Rasselas are treated in this thesis in the light of their opinions about the concept, "search for happiness.” Background information on the concept was limited to a ...
Si Uptake by the Centric Diatom, Chaetoceros Galvestonensis
(1978)
Chaetoceros galvestonensis was first classified in 1962 by Collier and Murphy at the A&M Marine Lab in Galveston. It, like other planktonic, centric diatoms, has extensions or setae projecting from the silicified cell wall. ...
A Study of the Behavior of Pinaeid Shrimp under Controlled Laboratory Conditions
(1978)
One of the major objectives of this research project was to fully describe the types of behavior exhibited by the Gulf shrimp, Penaeus setiferus and Penaeus aztecus, under controlled laboratory conditions. An experiment ...
Thermodynamic Study of Gaseous Cu₂Sn and CuSn₂ by Knudsen Cell Mass Spectrometry
(1978)
The equilibria involving gaseous species above the condensed Cu-Sn system have been experimentally investigated at elevated temperatures by the high temperature mass spectrometric technique. The molecules Cu₂, CuSn, Sn₂, ...
DNA Repair in Dictyostelium discoideum Exposed to Pesticides and Ultraviolet Light
(1978)
The cellular slime mold Dictyostelium discoideum is a good organism for studying the excision repair process. The fungicide benomyl is known to have some unusual mutagenic properties; for this reason, we studied its effects ...
Metalliferous Deposits within Newfoundland Ophiolite Complexes
(1978)
Because of their apparent metalliferous concentrations, six metamorphosed sedimentary rocks were collected from the island of Newfoundland. The samples were studied in order to determine the origins of the metals contained ...
Attitudes Toward Aging
(1978)
Four theoretical explanations for the existence of negative attitudes toward the old, (1) poor life satisfaction as measured by loss in socioeconomic status, poor health and financial insecurity, (2) nearness to death of ...