Search for dissertations about: "stable processes"

Showing result 1 - 5 of 601 swedish dissertations containing the words stable processes.

2. 1. Alternative Stable States in Size-Structured Communities : Patterns, Processes, and Mechanisms

   Author : Arne Schröder; Lennart Persson; André M. de Roos; Tim Benton; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; biomass overcompensation; Chaoborus; emergent Allee effect; Heterandria formosa; juvenile recruitment bottlenecks; ontogenetic niche shifts; Poecilia reticulata; Biology; Biologi;

   Abstract : Alternative stable states have been, based on theoretical findings, predicted to be common in ecological systems. Empirical data from a number of laboratory and natural studies strongly suggest that alternative stable states also occur in real populations, communities and ecosystems. READ MORE

4. 2. Fractionation of Cu and Fe isotopes in metal-rich mine sites : biotic and abiotic processes

   Author : Nathalie Pérez Rodríguez; Magnus Land; Luleå tekniska universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cu and Fe isotopes; fractionation; tailings; plants; phytoremediation; organic amendments; soil bacteria; Cu and Fe cycle; covellite; redox processes; Applied Geology; Tillämpad geologi;

   Abstract : After mineral exploitation the residual grinded and milled material, rich in sulphide minerals and heavy metals, is often left exposed to the atmospheric variables. This weathered mine waste material can lead to the formation of acid mine drainage (AMD) which has negative effects to the environment. READ MORE

5. 3. Earning, caring, and the quest for sustainable societies : Toward stable evolution?

   Author : Pernilla Tunberger; Joakim Palme; Christina Bergqvist; Kimberly Morgan; Uppsala universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; work family reconciliation; family policy; labor market liberalization; flexicurity; gender; equality; social policy; institutional change; institutional analysis; feminist institutionalism; multiple equilibria; Statskunskap; Political Science;

   Abstract : This thesis studies changing conditions for earning and caring in Italy and Sweden, two cases out of a population of European welfare states facing similar challenges and processes of labor market liberalization affecting conditions for earning, but also for caring. Focus is on how such processes of change affect individual living conditions for earning and caring, as well as on how societies change as a result of changing individual living conditions. READ MORE

6. 4. Noise sensitivity and FK-type representations for Gaussian and stable processes

   Author : Malin Palö Forsström; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; color representation; exclusion process; color process; Noise sensitivity; threshold stable vector; volatility; noise stability; interchange process; threshold Gaussian vector; multivariate stable distribution; Bernoulli random vector; mixing time;

   Abstract : This thesis contains four papers on probability theory. Paper A concerns the question of whether the exclusion sensitivity and exclusion stability of a sequence of Boolean functions are monotone with respect to adding edges to the underlying sequence of graphs. READ MORE

7. 5. Nelson-type Limits for α-Stable Lévy Processes

   Author : Haidar Al-Talibi; Astrid Hilbert; Francesco Russo; Linnéuniversitetet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ornstein-Uhlenbeck position process; α-stable Lévy noise; scaling limits; time change; stochastic Newton equations; Mathematical statistics; Matematisk statistik; Applied mathematics; Tillämpad matematik; Mathematics; Matematik;

   Abstract : Brownian motion has met growing interest in mathematics, physics and particularly in finance since it was introduced in the beginning of the twentieth century. Stochastic processes generalizing Brownian motion have influenced many research fields theoretically and practically. READ MORE