Avancerad sökning

Hittade 5 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Högpresterande betongs hydratation, struktur och hållfasthet

    Författare :Bertil Persson; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fukttransport; uttorkning; permeabilitet; diffusivitet; betong; höghållfast betong; materialegenskaper; högpresterande betong; egenskaper; hållfasthet; krympning; desorption; hydration; vattenbindetal; värmeutveckling; teori; laboratorieförsök; fullskaleförsök; fältförsök tillämpningsexempel;

    Sammanfattning : Syftet med projektet var att jämföra egenskaper hos s k högpresterande betong, d v s betong med mycket låga vattenbindetal (vbt) med motsvarande egenskaper hos normala betongkvaliteter. Studerade egenskaper är hydration, hållfasthetstillväxt och fukttransportegenskaper. LÄS MER

  3. 2. Migrän : Genetiskt inflytande, uppväxtförhållanden och personlighet i migränfamiljen

    Författare :Bertil Persson; Institutionen för psykologi; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; anxiety; neuroticism; Migraine; extraversion-introversion; intra-class correlation; heritability; psychosocial environment; Sibling Behavioral Genetic Method.;

    Sammanfattning : The monograph consists of an extensive survey of psychological and behavioral genetic research on migraine, reports of three empirical studies in this area and an extensive English summary. Study 1 indicated persons with migraine (n=28) drawn from a neurological clinic to have experienced negative psychosocial events to a significantly greater extent during their development than persons free of migraine in general population (n=28) had. LÄS MER

  4. 3. Quasi-instantaneous and Long-term Deformations of High-Performance Concrete with Some Related Properties

    Författare :Bertil Persson; Avdelningen för Byggnadsmaterial; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Shrinkage; Relative humidity; Long-term; Hydration; High-Performance Concrete; Elastic modulus; Deformations; Creep; Concrete; Cement; Quasi-instantaneous; Strength; Building construction; Byggnadsteknik;

    Sammanfattning : This report outlines an experimental and numerical study on quasi-instantaneous and long-term deformations of High-Performance Concrete, HPC, with some related properties. For this purpose about two hundred small cylinders and about one thousand cubes of eight types of HPC were cast. The age at loading varied between 18h and 28 days. LÄS MER

  5. 4. Drug Dissolution under Physiologically Relevant Conditions In Vitro and In Vivo

    Författare :Eva Persson; Hans Lennernäs; Bertil Abrahamsson; Peter Langguth; Uppsala universitet; []
    Nyckelord :Biopharmacy; solubility; drug dissolution; food effects; poorly soluble drugs; P-gp inhibition; drug absorption; pemeability; bile acids; phospholipids; human intestinal fluid; simulated intestinal fluid; neutral lipids; solid phase extraction; HPLC; Efflux; Biofarmaci;

    Sammanfattning : The general aim of the present project was to increase the understanding of the in vivo dissolution of poorly soluble drugs and thereby improve possibility to predict in vivo solubility from substance properties. Increased understanding of the in vivo limitations of drug solubility could potentially also generate ideas for improved formulation principles for poorly soluble compounds and more relevant in vitro dissolution test methods used in formulation development. LÄS MER

  7. 5. Förhållandet mellan intern skattelagstiftning och skatteavtal : särskilt om företräde för interna skatteregler

    Författare :Alexandra Johansson; Roger Persson Österman; Peter Melz; Bertil Wiman; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; conflict of law; distributive rules; double taxation; dualism; golden rule; method article; non-aggravation; tax avoidance; tax claim; tax treaty; tax treaty override; taxing rights; Legal Science; specialisation Finacial Law; rättsvetenskap med inriktning mot finansrätt;

    Sammanfattning : This thesis addresses the relationship between domestic tax law and tax treaties in a Swedish context, particularly with the purpose of clarifying when the legal consequences of domestic tax law are to prevail over those in tax treaties. The question of primacy arises due to domestic law and tax treaties often apply to the same situation, while providing for different legal consequences. LÄS MER