Sökning: "N Williams"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden N Williams.

  1. 1. Hydrogenation, Transfer Hydrogenation and Hydrogen Transfer Reactions Catalyzed by Iridium Complexes

    Författare :Xu Quan; Pher Andersson; Jonathan Williams; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Iridium catalyst; carbene; N; P - ligand; asymmetric hydrogenation; transfer hydrogenation; hydrogen transfer reaction; alkylation; olefin; ketone; amide; organisk kemi; Organic Chemistry;

    Sammanfattning : The work described in this thesis is focused on the development of new bidentate iridium complexes and their applications in the asymmetric reduction of olefins, ketones and imines. Three new types of iridium complexes were synthesized, which included pyridine derived chiral N,P-iridium complexes, achiral NHC complexes and chiral NHC-phosphine complexes. LÄS MER

  3. 2. Negotiating Social Membership : Immigrant Claims-Making Contesting Borders and Boundaries in Multi-Ethnic Europe

    Författare :Zenia Hellgren; Barbara Hobson; Fiona Williams; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Migration; Immigration; Social Membership; Claims-making; Contentious politics; Sociology; sociologi;

    Sammanfattning : The concept of social membership is the mainframe for this dissertation, which encompasses four independent articles that approach the boundaries of social membership from different perspectives. Empirically, the focus lies on mobilizing groups that demand an extension of rights and/or inclusion for documented and undocumented immigrants in two European immigration countries: Sweden and Spain. LÄS MER

  4. 3. Investigations into the distribution and function of nucleobindin 1

    Författare :Paul Williams; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The nucleobindin proteins (NUCB1 and NUCB2) are both characterised by DNA- and calcium-binding motifs. The functionality of these motifs has been demonstrated, but has not yet led to the identification of a role for either protein. LÄS MER

  5. 4. Catalytic Asymmetric Ketone and Alkene Reductions Using Transition Metal Complexes

    Författare :Klas Källström; Pher Andersson; Per Arvidsson; Jonathan Williams; Uppsala universitet; []
    Nyckelord :Organic chemistry; Catalytic; Asymmetric; Reductions; Ketones; Alkenes; Transition metal; Complexes; Organisk kemi;

    Sammanfattning : This thesis contains seven papers dealing with iridium and ruthenium based catalytic asymmetric reductions, either of ketones into chiral alcohols, or olefins into chiral alkanes. The first part of the thesis describes how we have designed and evaluated new bicyclic ligands containing either N,S or N,N chelating atoms. LÄS MER

  7. 5. For better and for worse, till death do us part : Support needs of persons caring for a co-habitant spouse or partner with dementia

    Författare :Marcus Falk Johansson; Lena Marmstål Hammar; Lena Dahlberg; Martina Summer Meranius; Christine Williams; Marie Ernsth-Bravell; Högskolan Dalarna; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Informal care; spouse; dementia; support; needs; experiences;

    Sammanfattning : Background: Caring for a partner with dementia is typically stressful and challenging. Such carers can become overwhelmed by their responsibilities, neglecting their personal needs as well as their need for support as a carer. Receipt of support is low among spouse carers, while the support received may not be appropriate for their needs. LÄS MER