Search for dissertations about: "reproduction"

Showing result 1 - 5 of 608 swedish dissertations containing the word reproduction.

  1. 1. The role of leptin in zebrafish (Danio rerio) : Novel insights into appetite regulation and reproduction

    Author : Emmanouil Tsakoumis; Monika Schmitz; Tatjana Haitina; Åsa Wallén-Mackenzie; Ana Gómez Peris; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; zebrafish; leptin; appetite; GRN; brain; reproduction; oocyte maturation; ovulation; Biology with specialization in Comparative Physiology; Biologi med inriktning mot jämförande fysiologi;

    Abstract : The hormone leptin is a peripheral metabolic signal and an important regulator of energy balance. In mammals, leptin acts on the appetite centers in the hypothalamus, causing anorexigenic functions by inhibiting food intake. It is also considered as a link between the nutritional status and the endocrine reproductive axis. READ MORE

  2. 2. Allocation of body resources to reproduction in butterflies

    Author : Fredrik Stjernholm; Bengt Karlsson; Christer Wiklund; Jane K. Hill; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Biology; Zoology; Ecology; Butterflies; Reproduction; Life histories; Trade-offs; Resource use; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : The life-history of an organism can be studied and understood in terms of acquisition and expenditure of resources. In butterflies, the use of resources for reproduction has been the focus of much research due to the possibility to easily quantify both the input of resources from different sources over the life-cycle as well as the partitioning of these resources to reproduction. READ MORE

  3. 3. The Complex Genetics of Mouse Reproduction and Arhritis

    Author : Maria Liljander; Immunologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; morula; B10.Q mice; genetics.; Pregnancy; CIA; reproduction; QTL; superovulation; blastocysts; oocytes; litter size; RA; NFR N mice; MHC;

    Abstract : ABSTRACT Optimal breeding of mice is very important in biomedical science today. The understanding why some strains breed better and some worse enable scientists to create better in vivo models for human diseases. READ MORE

  4. 4. Birth Characteristics’ Impacton Future Reproduction and Morbidity Among Twins an dSingletons

    Author : Marie Bladh; Gunilla Sydsjö; Ann Josefsson; John Carstensen; Orvar Finnström; Karin Pettersson; Linköpings universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Twin; singleton; preterm birth; SGA; reproduction; hospitalization; siblings;

    Abstract : Globally, in both developed and developing countries, the twinning rates have increased since the early 70’s. A large proportion of twins are born preterm and/or small-for-gestational-age (SGA) and/or with a low birth weight. READ MORE

  5. 5. Written news at the crossroads : Entrepreneurial processes of reproduction and novelty in an institutional field in crisis

    Author : Joaquín Cestino; Olof Brunninge; Mart Ots; Roy Suddaby; Jönköping University; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; bricolage; capital; constraints; decoupling; entrepreneurial processes; field in crisis; institutional arrangements; journalism; newspapers; novelty; reproduction; written news;

    Abstract : This dissertation explores entrepreneurial processes in an institutional field incrisis. It is based on the inductive reinterpretation of four original papers that, combined, study activities of individuals searching for solutions to organizational problems in incumbent and startup newspapers. READ MORE