Thesis (Ph. D. - Economics)--University of Arizona, 1968. / Includes bibliographical references (leaves 108-109).

Inaug.-diss.--Giessen. / Lebenslauf. "Litteraturverzeichnis": p. [4].

Thesis (M.Com. (Economics))-University of Pretoria, 2005. / Abstract in English. Includes bibliographical references. Available on the Internet via the World Wide Web.

Thesis (Ph. D. - Economics)--University of Arizona, 1969. / Includes bibliographical references (leaves 133-136).

<p> The purpose of this study was to develop a better understanding of water-conscious residents&rsquo; thought processes that may lead to behavioral and attitudinal changes when introduced to information that increased their awareness of the amount of water used by the beef and dairy industry in Arizona. A total liberation framework rooted in critical animal studies provided the theoretical foundation for explaining how speciesism and carnism support the power structures of the animal industrial complex and how cognitive dissonance theory may affect future efforts toward engaging more people in the resistance of this oppressive, violent, and unjust system. Research showed that over 40 percent of Arizona&rsquo;s fresh water withdrawals are used to grow crops for animal consumption. This information was presented to a focus group consisting of seven participants interested in water conservation and consumed beef every week. A mixed methods approach to analyzing quantitative and qualitative data explored the complex decision-making process that influences an individual&rsquo;s beliefs and behavioral choices to continue, reduce, or eliminate beef and dairy from their diet. The data resulted in the postulation that introducing water-conscious citizens to the amount of water used by the beef and dairy industry causes cognitive dissonance, encouraging them to reduce their beef and dairy consumption and consider underlying power structures that support animal agribusiness as they reconcile the dissonance between their current behavior to conserve water and their current behavior to consume beef and dairy.</p><p>

In order to gain a better understanding of the mechanism of As(V) tolerance in rice, a number of hydroponic tolerance tests have been done on the interaction of As(V) with phosphate (PO₄^3-), reduced glutathione (GSH) and O₂ supply.  The PO₄^3—As(V) interaction test revealed that increasing PO₄^3- concentration reduces the toxicity of As(V).  Low PO₄^3- (0.05 mM) showed no protection against As(V) induced root inhibition, but higher PO₄^3- (0.5 and 5 mM) showed marked protection, suggesting PO₄^3- derived tolerance is not due to reduced PO₄^3- transport that has been postulated in other grass species.  The glutathione (GSH)-As(V) interaction test revealed a strong effect of GSH, increasing tolerance in rice.  The O₂ supply test also revealed a significant effect with enhanced tolerance in rice.  Therefore it can be suggested that PO₄^3-, GSH and air bubbling supply all reduces As(V) toxicity in rice by increasing tolerance.  The protection against As(V) provided by GSH and PO₄^3- were not the same for two rice varieties, Azucena (As sensitive) and Bala (As tolerant).  However these tolerance tests cannot explain why Azucena and Bala differ in susceptibility to As(V).  Three green house pot experiments revealed that As(V) treatment reduces growth in dose dependent way.  Total As concentration in the shoots and grain increases with the increasing concentration of the As(V) treatments.  Surprisingly, application of PO₄^3- does not alter As(V) toxicity.  Anaerobic (lowland) soil shows higher shoot As concentration but uptake is lower.  Rice genotypes show significant variation in their plant growth, total shoot As concentration and total As uptake which reveal that tolerant genotypes contain higher shoot As. Results of the hydroponics and pot experiments suggested that tolerance of rice is not derived from competition with As(V) at the PO₄^3- transporters, but rather reflects another, as yet unknown, mechanism.

Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 152-159). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 152-159). Also available on the Internet.

Thesis (M.S. - Renewable Natural Resources)--University of Arizona. / Includes bibliographical references.

Thesis (D.Phil(Environmental Economics))--University of Pretoria, 2008. / Includes bibliographical references (leaves 153-162).