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Visar resultat 1 - 5 av 8 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Efficient sampling of Bayesian posteriors and predictive distributions in χEFT

   Författare :Isak Svensson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; chiral effective field theory; Bayesian parameter estimation; nuclear physics; Markov chain Monte Carlo; two-nucleon scattering;

   Sammanfattning : In this thesis I employ Bayesian statistics to quantify parametric and epistemic uncertainties in chiral effective field theories (χEFT) and propagate these forward to predictions of observables in low-energy nuclear physics. Two primary sources of uncertainty---experimental errors and the theoretical error induced by the truncation of the EFT at up to next-to-next-to-leading-order---are modelled and accounted for in the posterior distributions of the unknown low-energy constants (LECs) that govern interaction strengths in χEFT. LÄS MER

3. 2. Elusive Peacemakers : A Bargaining Perspective on Mediation in Internal Armed Conflicts

   Författare :Isak Svensson; Mats Hammarström; David Mason; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; mediation; third party; civil war; peace agreement; conflict resolution; negotiated settlement; bargaining; conflict termination; internal conflict; Peace and conflict research; Freds- och konfliktforskning;

   Sammanfattning : This composite dissertation explores mediation in internal armed conflicts from a bargaining perspective. Four separate essays investigate why mediation occurs, why it is successful, and why peace guarantors’ commitments are credible. Essay 1 examines the conditions under which mediation takes place. LÄS MER

4. 3. Extending the reach of uncertainty quantification in nuclear theory

   Författare :Isak Svensson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The theory of the strong interaction—quantum chromodynamics (QCD)—is unsuited to practical calculations of nuclear observables and approximate models for nuclear interaction potentials are required. In contrast to phenomenological models, chiral effective field theories (χEFTs) of QCD grant a handle on the theoretical uncertainty arising from the truncation of the chiral expansion. LÄS MER

5. 4. Dissertatio medica de erysipelate, quam, ex consensu nobiliss. et experient. facultatis medicæ in regia academia Upsaliensi, præside, Samuele Aurivillio, ... pro gradu doctoris obtinendo, examini publico subjicit stipendiarius regius, Isacus Svensson, Lincopia Ostro-Gothus. In aud. Carol. maj. ad diem IV. Decemb. anni MDCCLXII

   Författare :Samuel Aurivillius; Isak Svensson; Samuel Aurivillius; Uppsala universitet; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

7. 5. Compliance with Territorial Awards : Territorial Concessions, Domestic Constraints, and International Legal Rulings

   Författare :David Larsson Gebre-Medhin; Desirée Nilsson; Isak Svensson; Stephen Gent; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; territorial disputes; conflict resolution; territorial concessions; international law; legal dispute resolution; domestic constraints; compliance; Israel; Nigeria; Ethiopia; Taba; Bakassi; Badme; Peace and Conflict Research; Freds- och konfliktforskning;

   Sammanfattning : Under what conditions do states engaged in interstate territorial disputes comply with unfavorable international legal awards? Interstate territorial disputes have proven to be a major threat to international peace and security. Of the available options for the peaceful resolution of territorial claims, legal dispute resolution has proven to be very effective, as states overwhelmingly comply with international awards. LÄS MER