No description available.

Thesis (Ph.D.)--Kent State University, 2008. / Title from PDF t.p. (viewed May 28, 2009). Advisor: Andrew Gilbert. Keywords: snake, Kenya, conception, perception, environmental education, conservation education. Includes bibliographical references (p. 273-291).

M.Sc. / Comparative electrophoretic studies at pH8,5 was conducted on the venom of the rinkals (Hemachatus haemachatus), Egyptian cobra (Naja haje haje) and puff-adder (Bitis arietans). The physiological effect of fresh freeze-dried venom of the rinkals was compared with that of various commercial samples of venom obtained from the same species of snake. Furthermore, the stability of dried snake venom under different conditions of storing was investigated. The electrophoretic, as well as the physiological results, indicated significant differences in the characteristics of fresh freeze-dried snake venom and the various commercial samples of venom obtained from the same species of snake. The electrophoretic results also show that freeze-dried venom, stored under the conditions described, is of somewhat unstable character and therefore the venom undergoes changes in its electrophoretic characteristics. A decline or increase of the total percentage of protein of the anodal and cathodal fractions, depending on the type of venom, was observed and is being regarded as being a function of the degeneration of the venom...

These studies indicate that tetraethylammonium (TEA) is transported by saturable processes from bath to lumen and lumen to bath in isolated, perfused snake (Thamnophis spp.) proximal renal tubules and that the unidirectional flux from bath to lumen (Jᵇ¹(TEA)) exceeds the unidirectional flux from lumen to bath (J¹ᵇ (TEA)) at all TEA concentrations studied. In order to examine the transport process further, the effects of N¹-methylnicotinamide (NMN), temperature, sodium cyanide, and the removal of Na⁺ on TEA transport were studied. Steady-state Jᵇ¹(TEA) (103.2 ± 1.1 fmoles min⁻¹ mm⁻¹ at {TEA}(b) = 8.1 μM) was inhibited by 50% at {NMN}(b) = 4.0 mM. When TEA and NMN were present in the lumen, J¹ᵇ (TEA) was depressed initially (T < 8 min). However, at steady-state, the presence of NMN in the lumen appeared to stimulate J¹ᵇ (TEA). This suggests a trans-stimulation effect of NMN on J¹ᵇ (TEA). During some flux experiments tubules were perfused at room temperature (24°C) and then cooled to 2.8°C. Jᵇ¹(TEA) decreased approximately 25% when compared to control values. This effect was reversible. Other tubules were perfused in the presence of 2.5 mM sodium cyanide in the perfusate and bath. Cellular concentrations of TEA dropped from 67 to 27 times the bath concentration during Jᵇ¹(TEA) measurements and from 21 to 6 times the mean luminal concentration during J¹ᵇ (TEA) measurements. This indicates that little if any intracellular binding of TEA occurs, as passive accumulation should be 16.1 times the bath or lumen TEA concentration (assuming a -70 mV PD). To determine if TEA transport was dependent on the presence of Na⁺, Na⁺ in the bath and perfusate solutions was replaced isosmotically by sucrose. Jᵇ¹(TEA) was not significantly changed in the absence of Na⁺. J¹ᵇ (TEA) decreased to 56% of control in the absence of Na⁺. This effect was reversible. Thus, J¹ᵇ (TEA) is Na⁺-dependent and Jᵇ¹(TEA) is not. These data suggest that the transport characteristics of the carrier for TEA at the luminal and peritubular membranes of the distal-proximal tubules of garter snakes are dissimilar.

Thesis (M.S.)--University of Delaware, 2007. / Principal faculty advisor: Mary Ann McLane, Dept. of Medical Technology. Includes bibliographical references.

No description available.

Includes bibliographical references. / 151 leaves : ill. (chiefly col.) ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / The venom from the Australian brown snakes (Pseudonaja spp.) contains a strong procoagulant component that produces bleeding due to consumption of clotting factors in bite victims. Investigation of the role of phospholipid and calcium found neither was essential for activity, but calcium could shorten the clotting time. / Thesis (Ph.D.)--University of Adelaide, Dept. of Paediatrics, 2000

Thesis (Ph. D.)--University of Sydney, 2005. / Title from title screen (viewed 20 May 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Biological Sciences, Faculty of Science. Degree awarded 2005; thesis submitted 2004. Includes bibliographical references. Also available in print form.

Thesis (doctoral)--James Cook University of North Queensland, 1997. / Bibliography: leaves 150-167.

Thesis (M.S.)--California Polytechnic State University, 2009. / Title from PDF title page; viewed on September 22, 2009. Major professor: Emily Taylor, Ph.D. "Presented to the faculty of California Polytechnic State University, San Luis Obispo." "In partial fulfillment of the requirements for the degree [of] Master of Science in Biological Sciences." "June, 2009." Includes bibliographical references (p. 48-57). Also available on microfiche.