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Now showing items 6491-6500 of 6604
An agricultural sector analysis of the United States sugar import policy
(1990)
The United States has maintained a sugar import quota since 1982. This policy, while supporting U.S. producer prices and incomes at a high level, has caused consumers to pay more for sugar and has reduced the incomes of ...
Regulation and evolution of the patatin multigene family : suggestions of combinatorial interactions directing tissue-specific gene expression
(1992)
While much has been written about the evolution of new tissues or organs, little is known about the origin of the regulatory elements that direct gene expression in new structures. Questions also arise about how new ...
Antiestrogenic and antimitogenic effects of 2,3,7,8-Tetrachlorodibenzo-para-dioxin (TCDD) : in vitro mechanistic studies
(1993)
2,3,7,8 -Tetrachlorodibenzo-p-dioxin (TCDD) is a broad spectrum antiestrogen which works through the aryl hydrocarbon (Ah) receptor. The estrogen receptor (ER) positive hum an ovarian carcinoma cell lines PE01, PE04 and ...
An examination of workplace justice, attitudes, and behavior : the case of layoffs
(1991)
This study examined the influence of procedural, interpersonal, and distributive justice on perceptions of fairness and workplace attitudes and behaviors for layoff victims and survivors. Self-report survey instruments ...
The inverse tsunami problem of an island
(1989)
To date there exists no deep water record of a major tsunami from a benthic pressure gauge. Such deep water records and their spectra are desirable as a means of characterizing the tsunami source. The closest thing to such ...
Computer simulation studies of radiation damage to biomolecules : gamma-ray irradiation of polyuridylic acid
(1994)
The objective o f this dissertation is to investigate the physical and chemical mechanisms involved when ionizing radiation interacts with biological m olecules in aqueous solution. Polyuridylic acid has been selected as ...
Kinetic modeling of the Fischer-Tropsch synthesis
(1990)
The objective of this work was to develop a kinetic model to describe the conversions and selectivity typical of iron based Fischer-Tropsch catalysts, and to apply the model in simulations of typical laboratory reactors. ...
Intelligent tutoring system design for engineering science courses
(1991)
Recent changes in computer technology have made the development of an intelligent tutoring system (ITS) a much more attractive proposition. Reviewing the current educational engineering software, two major deficiencies ...
Gas chromatography/mass spectrometry detection of polycyclic aromatic hydrocarbon metabolites in fish and its applications in environmental studies
(1994)
The Great Lakes are surrounded by heavily industrialized regions. High frequency of hepatocellular neoplasm in fish has been found. This study was undertaken to assess the environmental contamination by analyzing polycyclic ...
Selective alkylation of toluene with methanol over pentasil-type catalysts
(1993)
Para xylene is a valuable aromatic compound, because of the demand for oxidation to form tetraphthalic acid, a feed stock for polyester resin and fibers. A relatively high cost is associated with obtaining it in 99+% purity. ...