Sökning: "parental investment"

Visar resultat 21 - 25 av 29 avhandlingar innehållade orden parental investment.

  1. 21. Water for the Many : Health, neighbourhood change and equality of access during the expansion of Swedish urban water networks

    Författare :Martin Önnerfors; Centrum för ekonomisk demografi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; public investments; mortality; industrialisation; water networks; neighbourhood change; Sweden; Stockholm;

    Sammanfattning : During the course of the late nineteenth and early twentieth centuries, conditions for life in the city changed drastically. Investments in infrastructure, health and education coincided with economic growth, urbanisation and mortality decline. LÄS MER

  3. 22. Family, Friend, or Foe? Essays in Empirical Microeconomics

    Författare :Hilda Ralsmark; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Family size; earnings; health; twins; well-being; divorce law; media; social tolerance; hate crime;

    Sammanfattning : This thesis consists of four studies that deal with how individual outcomes are shaped by social interactions. The scope of the thesis ranges from relationships between individuals in what is arguably the most fundamental building block in society today — the family — to more generalized relationships between different groups in society. LÄS MER

  4. 23. Beyond the bright side : Investigating dark aspects of independent entrepreneurship, family entrepreneurship, and corporate entrepreneurship

    Författare :Mohamed A. Genedy; Lucia Naldi; Karin Hellerstedt; David Audretsch; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : Entrepreneurship is often perceived as a driving force for employment, innovation, and knowledge creation and is linked to poverty alleviation and economic growth. While entrepreneurship is often seen as a pathway for economic development and societal welfare, it does not consistently deliver the expected outcomes and, in certain instances, may exacerbate poverty, impede development, and present challenges to societal well-being and equality. LÄS MER

  5. 24. The evolution of courtship rituals

    Författare :Carl Adam Wachtmeister; Innes Cuthill; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; zoologi; Zoology;

    Sammanfattning : The fact that many animals engage in highly ornamented and conspicuous display behaviours in connection with reproduction has received much attention in zoology ever since Darwin launched his theory of sexual selection. This thesis intends to investigate the evolution of such display behaviour. LÄS MER

  7. 25. Avian thermoregulation across age and seasons

    Författare :Fredrik Andreasson; Evolutionär ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ambient temperature; body temperature; Cyanistes caeruleus; energy expenditure; hypothermia; life-history theory; metabolic rate; Parus major; thermoregulation; trade-off; winter ecology;

    Sammanfattning : Animals constantly need to relate to prevailing environmental conditions and regulate their body temperature accordingly. Body temperature regulation in birds and mammals is inherently linked to energy expenditure and, thus, thermoregulation is a physiological mechanism that could trade-off with other costly processes, with potential long-term fitness consequences. LÄS MER