Sökning: "sex ratio at birth"

Visar resultat 1 - 5 av 31 avhandlingar innehållade orden sex ratio at birth.

  1. 1. Determinants of Health Capital at Birth: Evidence from Policy Interventions

    Författare :Simona Bejenariu; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; health at birth; Romania; program evaluation; maternity leave benefits; austerity measures; fertility;

    Sammanfattning : Paper I: Austerity Measures and Infant Health. Lessons from an Unexpected Wage Cut Policy We investigate the effects on health at birth of a shock generated by a major (25%) and unexpected wage cut austerity measure that affected all public sector employees in Romania in 2010. LÄS MER

  3. 2. Sex steroid secretion during childhood in males - with focus on prematurity, birth size, and growth patterns

    Författare :Kjersti Kvernebo-Sunnergren; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; androgens; birth weight; body height; body weight; child; estrogens; male; mass spectrometry; premature birth; Silver-Russell syndrome;

    Sammanfattning : Aim: The overall aim of the thesis was to evaluate sex steroid secretion patterns during childhood in boys and to study how sex steroid concentrations relate to gestational age, birth weight, growth patterns, and adult height outcome. Patients and Methods: In paper I, 11 growth hormone-treated boys with Silver–Russell syndrome (SRS) who had reached adult height were included. LÄS MER

  4. 3. Embryonic Mortality and Sex Ratios in the Tree Sparrow

    Författare :Magnus Svensson; Jan Ekman; Jacob Höglund; Kathryn Arnold; Uppsala universitet; []
    Nyckelord :Ecology; Hatching success; Embryonic mortality; Sex ratio; Density dependence; Parasites; Ekologi; Passer montanus;

    Sammanfattning : Tree sparrows (Passer montanus) have been studied in two areas in Sweden since 1997. At both sites, tree sparrow eggs had remarkably low hatching success. On average only 60% of the eggs hatched. Analyses have shown that this was caused by embryonic mortality, which was highly sex biased. LÄS MER

  5. 4. Sex steroids, IGF-I, and vascular morphology from birth to adulthood in individuals born small for gestational age

    Författare :Kerstin Allvin; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; small for gestational age; preterm; sex steroid; estradiol; testosterone; dihydrotestosterone; glucocorticoid; retina; IGF-I;

    Sammanfattning : Abstract Aim: To study whether there is an association between size at birth, sex steroids, IGF-I, and retinal vascular morphology. Patients and methods: Two different cohorts were studied. In paper I, 25 young adult men born small for gestational age (SGA) were compared to 44 young adult men born appropriate for gestational age (AGA). LÄS MER

  7. 5. Rethinking Son Preference : Gender, Population Dynamics and Social Change in the People’s Republic of China

    Författare :Lisa Eklund; Sociologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Son preference; sex ratio at birth; gender; generation; migration; population; China;

    Sammanfattning : This dissertation explores how son preference is constructed and renegotiated in light of social change in the People’s Republic of China (PRC). Based on secondary sources and interviews with women and men in rural Anhui Province as well as key informants, it addresses son preference from conceptual, methodological, empirical and ideological perspectives. LÄS MER