Sökning: "regime theory"

Visar resultat 6 - 10 av 248 avhandlingar innehållade orden regime theory.

  1. 6. Statistical Methods in Portfolio Theory

    Författare :Stanislas Muhinyuza; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis we develop new statistical theory and apply it to practical problems dealing with mean-variance optimal portfolio selection. More precisely, we derive an exact statistical test for the characterization of the location of the tangency portfolio (TP) on the efficient frontier. LÄS MER

  3. 7. The Remaking of American Strategy toward Iran and Iraq : Outline of a Theory of Foreign Policy Change

    Författare :Idris Ahmedi; Jan Hallenberg; Ulf Mörkenstam; Jens Bartelson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Theory; Foreign Policy Change; Grand Strategy; Realism; Constructivism; the United States; Iran; Iraq; Political Science; statsvetenskap;

    Sammanfattning : This study sets out to develop a realist-constructivist theory of foreign policy change. The theory claims that whenever policymakers believe that the distribution of power favors an expansive grand strategy or necessitates retrenchment, they will act accordingly. LÄS MER

  4. 8. Homogenization of some new mathematical models in lubrication theory

    Författare :Afonso Fernando Tsandzana; Peter Wall; Lars- Erik Persson; John Fabricius; Anders Holmbom; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; lubrication theory; homogenization theory; Reynolds equation; cavitation; surfaces roughness; Stokes equation; Matematik; Mathematics;

    Sammanfattning : We consider mathematical modeling of thin film flow between two rough surfaces which are in relative motion. For example such flows take place in different kinds of bearings and gears when a lubricant is used to reduce friction and wear between the surfaces. LÄS MER

  5. 9. Regime Shifts in the Anthropocene

    Författare :Juan Carlos Rocha; Garry Peterson; Reinette Biggs; Örjan Bodin; Kevin Noone; Sarah Cornell; Ingo Fretzer; Steven Lade; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; regime shifts; critical transitions; network analysis; dynamic tipping points; Sustainability Science; vetenskap om hållbar utveckling; Systems Ecology; systemekologi;

    Sammanfattning : Regime shifts are large, abrupt and often hard to reverse changes in the function and structure of socal-ecological systems. These regime shifts have been documented in a broad range of systems and scales both in marine, terrestrial and polar ecosystems. LÄS MER

  7. 10. Regime Shifts in the Anthropocene

    Författare :Juan Carlos Rocha; Garry Peterson; Debra Peters; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; regime shifts; critical transitions; ecosystems; drivers; impacts; ecosystem services; Sustainability Science; vetenskap om hållbar utveckling;

    Sammanfattning : Abrupt and persistent reconfiguration of ecosystem’s structure and function has been observed on a wide variety of ecosystems worldwide. While scientist believe that such phenomena could become more common and severe in the near future, little is known about the patterns of regime shifts’ causes and consequences for human well-being. LÄS MER