Sökning: "Sex"

Visar resultat 26 - 30 av 2603 avhandlingar innehållade ordet Sex.

1. 26. Evolution of sex chromosomes in Sylvioidea songbirds

   Författare :Hanna Sigeman; MEMEG; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Sex chromosome; neo-sex chromosome; Birds; vertebrates; Genomics; Bioinformatics;

   Sammanfattning : Sex chromosomes were discovered more than 100 years ago. They have been studied intensely from a theoretical perspective since then, giving rise to a large body of testable predictions about their evolution from autosomes. LÄS MER

3. 27. Genomic and Peptidomic Characterization of the Developing Avian Brain

   Författare :Birger Scholz; Lennart Dencker; Eric Vilain; Uppsala universitet; []
   Nyckelord :Toxicology; Sex differentation; Sex determination; Sex chromosomes; Dosage Compensation; Genetic; Chickens; Coturnix; Gene Expression Profiling; Neuropeptides; Diencephalon; Toxikologi;

   Sammanfattning : Chicken and Japanese quail are commonly used models in developmental and sex specific neuroendocrine research. There is relatively little known about the mechanisms behind their sex specific brain development, especially regarding the impact of the sex chromosomes (male: ZZ, female ZW) in relation to gonadal hormones. LÄS MER

4. 28. Sex Differences in Cardiac and Cerebral Damage after Hypovolemic Cardiac Arrest

   Författare :Egidijus Semenas; Sten Rubertsson; Lars Wiklund; Ala Nozari; Sven Erik Gisvold; Uppsala universitet; []
   Nyckelord :Cardiopulmonary resuscitation; sex; haemorrhage; neuronal damage; estradiol; hypertonic saline; nitric oxide; methylene blue; MEDICINE; MEDICIN; Anaesthesiology and Intensive Care; Anestesiologi och intensivvård;

   Sammanfattning : Resuscitation from haemorrhagic shock and the subsequent circulatory arrest remains a major clinical challenge in the care of trauma patients. Numerous experimental studies in sexually mature animals have shown a gender dimorphism in response to trauma and haemorrhagic shock. LÄS MER

5. 29. Brood sex ratio and sex differences in Tengmalm’s owl : (Aegolius funereus)

   Författare :Tim Hipkiss; Gary Bortolotti; Umeå universitet; []
   Nyckelord :Aegolius funereus; avian CHD1 genes; brood sex ratio; differential mortality; nomadism; northern Sweden; sexual size dimorphism; sibling rivalry; supplementary feeding; vole cycles; zooekologi; Animal Ecology;

   Sammanfattning : Males and females differ in morphology and behaviour, so that selection acts differently on the two sexes. This changes the relative reproductive success of males and females, and it is beneficial for parents to bias the sex ratio of their broods in favour of the sex with the best survival and breeding prospects. LÄS MER

7. 30. Depression among Swedish 70-year-olds - Sex differences from a gender perspective

   Författare :Therese Rydberg Sterner; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; depression; time trend; epidemiology; sex; gender; experiences; older adults;

   Sammanfattning : Depression is one of the leading causes of global burden of disease. Due to increased life expectancy, late-life depression is an escalating public health issue. The prevalence is reported to be almost twice as high among women compared to men. LÄS MER