Essays about: "Age structure"

Showing result 16 - 20 of 286 essays containing the words Age structure.

  1. 16. The perfect wing, The perfect trade-off? : What implements the main selection pressure on wing morphology?

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Emme MacDonald; [2023]
    Keywords : Bird; wing morphology; migration; habitat; aspect ratio; wing loading;

    Abstract : Selection pressure is a constant force in evolution, pushing birds and their wings towards an optimal shape and structure, were increasing performance, and minimizing the costs is central. But even though the science of aerodynamics can provide calculations of the optimal construction for the wing in different situations this rarely directly correspond to what is observed in nature. READ MORE

  3. 17. Origin of blue straggler stars in the Milky Way halo

    University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Author : Adam Brcek; [2023]
    Keywords : Blue Straggler; Galactic Halo; Spectroscopic Surveys; Binary Star Evolution; Mass Transfer; Physics and Astronomy;

    Abstract : Blue straggler stars (BSSs) are exotic stellar objects that appear to be younger than the age of the population they come from suggests. They are observed as the extension of the main sequence stars, beyond the turn-off point. READ MORE

  4. 18. Ageing Populations and World Trade: Blight or Blessing?

    University essay from Lunds universitet/Ekonomisk-historiska institutionen

    Author : Elise Meijer; [2023]
    Keywords : Population ageing; international trade; gravity model of international trade; Business and Economics;

    Abstract : Since the last half of the twentieth century, population ageing has increasingly become a problem for countries all over the world. The literature on population ageing is very well- established, however, it is lacking in one significant respect. That is, hardly any research has been done on how population ageing may affect international trade. READ MORE

  5. 19. Agency in the Warsaw Ghetto : An Intersectional Analysis of the Daily Life, Survival, and Death of Elderly Jews

    University essay from Uppsala universitet/Hugo Valentin-centrum

    Author : Janika Raisch; [2022]
    Keywords : Holocaust; Genocide; Warsaw ghetto; Second World War; Nazi; Nazis; Poland; Warsaw; Jews; Polish Jews; Ghettoisation; Ghettoization; Ghetto; Ghettos; Jewish council; Jewish Self-Help; Elderly; Elderly Jews; Old age; Intersectionality; Agency;

    Abstract : In Holocaust research, the study of elderly Jews in Nazi German ghettos remains a blind spot. This thesis begins to fill the research gap by exploring the everyday life of elderly Jews and their agency under the structural conditions of the Warsaw ghetto. READ MORE

  6. 20. “What’s the buzz with bilberries?” – Bilberry pollinator community structure and function in relation to forest type and habitat structure

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Jacob Björnberg; [2022]
    Keywords : Biology and Life Sciences;

    Abstract : Over the last century, Swedish forests have undergone rapid land-use change due to intensification of management practices for timber production and the introduction of monocultures, which have resulted in considerable habitat loss and negative impacts to biodiversity. Insects form a significant component of forest biodiversity, yet forest-dwelling pollinators remain understudied, and little is known about how management strategies affect forest insect pollinator communities. READ MORE