Search for dissertations about: "Sex AN..."

Showing result 21 - 25 of 1719 swedish dissertations containing the words Sex AN....

  2. 21. ELOVL2 and PUFA biosynthesis : Impact on sex-specific processes in mammals

    Author : Amanda González-Bengtsson; Anders Jacobsson; Christian Drevon; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fysiologi; Physiology;

    Abstract : Endogenously synthesized PUFAs (Polyunsaturated Fatty Acids) vary in production depending on medical conditions, gender, developmental phase, age, fertility status, pregnancy and lactation. PUFA biosynthesis is further regulated via amount of dietary intake as well as genetically. READ MORE

  4. 22. Sex, Sperm and Speciation : On sexual selection and fertility in hybridizing flycatchers

    Author : Murielle Ålund née Podevin; Anna Qvarnström; Simone Immler; Leonie Moyle; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; sperm biology; sexual selection; speciation; hybridization; cryptic female choice; fertility; Ficedula flycatchers; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Abstract : Sexual reproduction entails complex co-evolution between the sexes, necessary for successful fertilization, ensuring individual and population-level fitness. Interfertility is the main criterion for species definition and understanding speciation requires detailed studies of reproductive barriers. READ MORE

  5. 23. Circadian Rhythms in Moth Sex Pheromone Communication

    Author : Germund von Wowern; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physiology of invertebrates; växtparasitologi; Entomologi; plant parasitology; Entomology; Ecology; Ekologi; locomotor activity; social synchronisation; PDH; corazonin; PBAN; pheromone response; sex phermone; Lepidoptera; Ryggradslösa djurs fysiologi; calling behaviour; circadian rhythm;

    Abstract : Sex pheromone communication and related physiological processes are regulated by circadian clock mechanisms in many moth species. This thesis includes studies of circadian rhythms in sexually relevant behaviours and communication in the Egyptian cotton leafworm Spodoptera littoralis, the turnip moth Agrotis segetum, the Indian meal moth Plodia interpunctella and the Mediterranean flour moth Ephestia kuehniella. READ MORE

  6. 24. Malignant glioma : experimental studies with an estrogen-linked cytostatic

    Author : Eva von Schoultz; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; malignant glioma; meningioma; glioma cells; sex steroids; estramustine; nor-nitrogen mustard; estramustine- binding protein; DNA damage; cell membrane;

    Abstract : Malignant gliomas are the most common primary brain tumors in adults. Patients with these highly malignant tumors have an extremely poor prognosis. The situation with a highly proliferative tumor in a non-proliferating tissue should favor cytostatic treatment but so far the role of conventional chemotherapy has been adjunctive. READ MORE

  7. 25. Sex steroids and social behavior: from mouse to human

    Author : Sara Karlsson; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; social memory; sociability; androgen receptor; sex steroids; genetic variations;

    Abstract : Social behavior is a classification of various behaviors such as sexual behavior, aggressive behavior, social memory and sociability. These behaviors are under the regulation of the brain, and the sex steroids influence important brain regions that control these behaviors in both humans and other animals. READ MORE