Sökning: "scientific theories"

Visar resultat 16 - 20 av 2736 avhandlingar innehållade orden scientific theories.

1. 16. Supersymmetric Gauge Theories and Matrix Models

   Författare :Rainer Heise; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; String theory; Effective field theory; Matrix model; Supersymmetric gauge theories;

   Sammanfattning : We discuss recent developments in supersymmetric field theory due to the conjecture of Dijkgraaf and Vafa relating the effective superpotential of such theories to the computation of an associated matrix model. We give a short survey of N=1 supersymmetric gauge theories and state the conjecture. LÄS MER

3. 17. Assessing Scientific Literacy as Participation in Civic Practices : Affordances and constraints for developing a practice for authentic classroom assessment of argumentation, source critique and decision-making

   Författare :Jens Anker-Hansen; Maria Andrée; Per-Olof Wickman; Aik Ling Tan; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; scientific literacy; assessment; authentic; communities of practice; expansive learning; argumentation; peer assessment; moderation meetings; naturvetenskapsämnenas didaktik; Science Education;

   Sammanfattning : This thesis takes a departure from a view of scientific literacy as situated in participation in civic practices. From such a view, it becomes problematic to assess scientific literacy through decontextualised test items only dealing with single aspects of participation in contexts concerned with science. LÄS MER

4. 18. Before the "European Miracles". Four Essays on Swedish Preconditions for Conquest, Growth, andVoice

   Författare :Erik Örjan Emilsson; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; aristocracy; agrarian history; comparative history; Early Modern Sweden; economic dynamics; evolutionary social science theories; institutional theories; jurisdictional system; lawspeakers lagmän ; Medieval Sweden; parliamentary politics; peasant categories; peasant rebellions; political contestation; political representation; property taxations; Sweden’s Great Power Age; theories of feudalism; transition to capitalism;

   Sammanfattning : This thesis consists of four studies that further develop the perspectives introduced in the author’s licential dissertation, Sweden and the European Miracles: Conquest, Growth and Voice (1996). The dynamic properties of the European system of independent but interacting societies are traced back to the institutional polystruc-turality of European feudalism and the peculiarities of Sweden’s historical experience are asserted to be part of this intersocietal heritage. LÄS MER

5. 19. Har nutida fysik religiös relevans? : En undersökning av hur fysikaliska teorier indirekt relateras till religiösa utsagor genom metafysiska antaganden med fysikalisk anknytning

   Författare :Åsa Nordén; Uppsala universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Religion; scientific theories; religious relevance; indirect relevance; metaphysical suppositions; B. van Fraassen; J. Polkinghorne; Religionsvetenskap Teologi; Religion Theology; Religionsvetenskap Teologi; Philosophy of Religion; religionsfilosofi;

   Sammanfattning : A prerequisite of the reasoning carried out in this dissertation is that scientific theories as such do not have any logical implications for religion. How can it be then that certain scientific theories, among them physical ones, nevertheless seem to be religiously relevant?One possible answer to this question is that the relevance between contemporary scientific theories and theistic/atheistic ideas is indirect, meaning that it is based upon metaphysical suppositions which presumably are in some way connected with scientific theories. LÄS MER

7. 20. Phenomenology of SO(10) Grand Unified Theories

   Författare :Marcus Pernow; Tommy Ohlsson; Werner Rodejohann; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Grand unified theories; Renormalization group equations; Neutrino masses; Gauge coupling unification;

   Sammanfattning : Although the Standard Model (SM) of particle physics describes observations well, there are several shortcomings of it. The most crucial of these are that the SM cannot explain the origin of neutrino masses and the existence of dark matter. LÄS MER