Sökning: "substitution"

Visar resultat 1 - 5 av 670 avhandlingar innehållade ordet substitution.

  1. 1. Experimental Vitreous Substitution

    Författare :Henrik Barth; Lund Oftalmologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Retinal Detachment; Vitreous Body : surgery; Retina cytology metabolism surgery; Retina: Function; Retina: Inflammation; Retinal Detachment; Vitreous Body : surgery; Vitreous substitute; Vitrectomy;

    Sammanfattning : Blindness and visual disability are common following vitreoretinal pathologies such as open globe injury, proliferative diabetic retinopathy, and rhegmatogenous retinal detachment (RRD). These conditions often necessitate surgical intervention using vitrectomy with a tamponading vitreous substitute. LÄS MER

  2. 2. Att byta ut skadliga kemikalier : substitutionsprincipen - en miljörättslig analys

    Författare :Annika Nilsson; Juridiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; hazardous chemicals; implementation; chemical legislation; substitution; sustainable development; environmental law; miljörätt;

    Sammanfattning : The principle of substitution is, in national and international contexts, regarded as an important instrument when striving towards sustainable development and sustainable handling of chemicals.This thesis deals with the principle as it is formulated in the Swedish Act of Chemical Products. LÄS MER

  3. 3. Palladium-Catalyzed Nucleophilic Substitution of Alcohols : Mechanistic Studies and Synthetic Applications

    Författare :Supaporn Sawadjoon; Joseph Samec; Takao Ikariya; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; palladium; nucleophilic substitution; mechanism; Organisk kemi; Organic Chemistry;

    Sammanfattning : This thesis deals with the palladium-catalyzed nucleophilic substitution of π-activated alcohols in which the C–O bond of a non-manipulated hydroxyl group is cleaved. The thesis is divided in two chapters describing two different catalytic systems. LÄS MER

  4. 4. Platinum(II) and Palladium (II) Complexes with Group 14 and 15 Donor Ligands. Synthesis, Structure and Substitution Mechanisms

    Författare :Ola Wendt; Kemiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; mechanism; kinetics; substitution; platinum; palladium; aryl; silyl; nitrile; triphenylstibine; NMR; IR; Raman; X-ray crystallography; stopped-flow; synthesis; Inorganic chemistry; Oorganisk kemi;

    Sammanfattning : The present thesis deals with Pd(II) and Pt(II) complexes with group 14 and 15 donor ligands. Such complexes have been prepared and investigated mainly with regard to their ground state structures and the mechanism according to which they undergo substitution. LÄS MER

  5. 5. Ligand Substitution and Solvent : Exchange Reactions of Palladium(II) and Platinum(II) Acetonitrile and Dimethyl Sulfoxide Complexes. A High-Pressure Stopped-Flow and NMR Study

    Författare :Björn Hellquist; Högskolan i Jönköping; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER