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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 89 for “"Hamsters"”.
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Sexual Behavior in Normal and Prenatally Androgenized Female Hamsters
… of male sexual behavior patterns. Normal female hamsters, unlike female rats, have been rarely observed to display male sexual behavior. The ability of female rats to display male sexual behavior is attributed to prenatal exposure to testosterone which is secreted by their male sibling. Since …
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Changes in Thyroid Function Associated With Pregnancy in Golden Hamsters
Thyroxine (T₄) and triiodothyronine (T₃) utilization rates were calculated to determine the changes in thyroid function during pregnancy in the hamster, (Mesocricetus auratus). Turnover rates were calculated via the plasma disappearance technique using ¹²⁵I-labeled hormones. Serum T₄ and T₃ were …
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Toxicity and Teratogenicity of Conium Maculatum in Swine and Hamsters
Feeding trials presented in this research thesis positively show that poison hemlock seed and plant material are both toxic and teratogenic in swine.
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Altered retinal connections following partial tectum lesions in neonate hamsters.
Thesis: M.S., Massachusetts Institute of Technology, Department of Psychology, 1973
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Investigation of Glutamatergic Circuitry Underlying Copulatory Reward in Female Syrian Hamsters
… motivation to copulate. I have utilized female hamsters as a model to examine the underlying circuitry and mechanisms of this natural reward. Despite a wealth of information detailing dopaminergic neurotransmission in this region during sexual behavior, the role of glutamate, although the major …
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Oxidative Enzyme Activity in the Kidney of Rats and Hibernating and Non-hibernating Hamsters
Mammalian hibernation is characterized by distinctive changes in body temperature and metabolism during the course of entry into and arousal from hibernation. Tissues of hibernating animals retain their functional integrity at temperatures well below those at which the same tissues of …
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Investigation of intercellular transport and biodistribution of curcumin across the nasal epithelium in hamsters
… epithelial cells has been recently reported in hamsters. Intercellular transport in the nose could potentially be used for the non-invasive delivery of drugs to the brain. This thesis looks at the possibility of intercellular transport across the nasal mucosa for the purpose of drug delivery to …
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Plasma total cholesterol and triglyceride responses of hamsters fed oat bran and pinto bean diets
… (TC) and triglycerides (TG) was investigated. Hamsters were made hypercholesterolemic (average value = 206 mg/dL) and then fed one of four experimental diets, the hypercholesterolemic control (HC), an insoluble fiber (alphacel) control (FC), the oat bran (OB), or the pinto bean (PB) diet for …
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The titration of an immunogenic agent against Leptospira pomona using Syrian golden hamsters (Cricetus auratus)
Tests on hamsters reveal that there is a decided protective index from the soluble antigen prepared by the acid-heat extraction of living cultures of Leptospira pomona. They also reveal that the antigen must be given in quantities sufficiently small to be amenable to the system of the test animal …
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Avaliação da inoculação vaginal de Leptospira santarosai no estudo da lepstospirose genital em hamsters experimentalmente infectados
… no modelo de infecção genital crônica em hamsters experimentalmente infectados. Foram estudadas 30 hamsters adultas com ciclo estral na fase de proestro ou estro. Os ensaios ocorreram no Biotério de Experimentação em Microbiologia e Parasitologia do Instituto Biomédico/UFF. Os animais …
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Sexual and Olfactory Preferences of Male Hamsters (Mesocricetus Auratus Waterhouse) for Conspecifics in Different Hormonal Conditions
Made available in DSpace on 2014-12-14T16:11:07Z (GMT). No. of bitstreams: 1 7524349.pdf: 3706860 bytes, checksum: a4d7593ecdb5cd2c95dc6732df22cdb7 (MD5) Previous issue date: 1975
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The Effect of Centrally Administered D-Alanine-Methionine-Enkephalinamide (Dala) on the Copulatory Behavior of Male Hamsters
… central enkephalins, sexually experienced male hamsters received intracerebroventricular (ICV) injections in the lateral ventricle. On postoperative days 7 and 11, 2ug of DALA was administered ICV. One day 15, 4mg/kg of Naloxone, a competitive opiate antagonist was given intraperitoneal (IP) 10 …
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L' effet de la phénylcétonurie expérimentale sur la synthèse protéique chez les cellules de cerveau de hamsters
… taux de synthese proteique, dans le cerveau de hamsters, a l'aide de profils de sedimentation des polyribosomes totaux bruts et des polyribosomes cytosquelettiques vs polyribosomes solubles. De plus, nous avons etudie l'effet de divers stress (chocs thermiques) sur le taux de synthese proteique. …
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The function of the fornix in Syrian golden hamsters : a lesion and behavioral study of the Papez circuit
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Age-Related Hamster Mitochondrial Changes and Oocyte Changes Following Autologous Platelet Mitochondrial Microinjection
… mitochondrial changes in oocytes from old hamsters compared with those from young hamsters. We used autologous platelet mitochondrial microinjection to improve the mitochondrial quality and quantity of aged oocytes to improve their pregnancy potential. Metaphase II oocytes were collected …
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A comparative study of the ventilatory responses of the golden hamster, Mesocricetus auratus and the laboratory rat, Rattus norvegicus, under hypercapnic and/or hypoxic gas mixtures
… compares ventilatory responses of golden hamsters (<i>Mesocricetus auratus</i>) to different ambient respiratory gas concentrations with those of the white rat (<i>Rattus norvegicus</i>). Total body plethysmography was used to measure tidal volume (V<sub>T</sub>), respiratory frequency …
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