Sökning: "“grafting to”"

Visar resultat 26 - 30 av 283 avhandlingar innehållade orden “grafting to”.

  1. 26. Birch xylan modification by lactide grafting

    Författare :Johanna Persson; Ann-Christine Albertsson; Monica Ek; Mikael Lindström; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The wood based biorefinery concept has led to an increasing interest in the possibility of using hemicelluloses as a source for value added products. Hemicelluloses are dissolved in large amounts in the process liquor during kraft pulping. LÄS MER

  3. 27. An Environmental Approach to PVC Stabilisation

    Författare :Paul Clucas; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic stabiliser; base catalysed dehydrochlorination; colour improvement ; dehydrochlorination stability; polymer-bound stabiliser; intrasequence lactonisation; co-stabiliser; PVC stabilisation; colour stability; labile chlorine substitution; neighbouring group participation;

    Sammanfattning : We were interested in investigating the stabilisation behaviour of 6-aminouracils, a new class of heavy metal free thermo-stabiliser for PVC. We have therefore investigated the performance and mechanism of stabilisation for 1,3-dibutyl-6-aminouracil, both alone, and in combination with a sodium perchlorate co-stabiliser. LÄS MER

  4. 28. No-Touch Saphenous Veins in Coronary Artery Bypass Grafting : Long-term Angiographic, Surgical, and Clinical Aspects

    Författare :Ninos Samano; Domingos Souza; Håkan Geijer; Torbjörn Ivert; Örebro universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Computed tomography angiography; coronary artery bypass grafting; left internal thoracic artery; no-touch harvesting technique; patency; saphenous vein; Kirurgi; Surgery;

    Sammanfattning : Ischemic heart disease is currently the leading cause of death globally. Coronary artery bypass grafting (CABG) is considered the best treatment for many patients and its success depends on the long-term patency of the conduits. LÄS MER

  5. 29. On guided bone reformation in the maxillary sinus to enable placement and integration of endosseous implants. Clinical and experimental studies

    Författare :Giovanni Cricchio; Stefan Lundgren; Lars Sennerby; Gerry Raghoebar; Umeå universitet; []
    Nyckelord :bone grafting; donor morbidity; iliac crest; dental implants; membrane elevation; maxillary sinus floor elevation;

    Sammanfattning : Dental caries and periodontal disease are the major causes for tooth loss. While dental caries commonly involve the posterior teeth in both jaws, the teeth most commonly lost due to periodontal problems are the first and second molars in the maxilla. As a consequence, the upper posterior jaw is frequently edentulous. LÄS MER

  7. 30. Waiting time and mortality in coronary artery bypass grafting patients

    Författare :Helena Rexius; Göteborgs universitet; []
    Nyckelord :coronary artery bypass grafting; waiting time; mortality; gender; risk score;

    Sammanfattning : Coronary Artery Bypass Grafting (CABG) has emerged as one of the most common major surgical procedures worldwide. Unfortunately the capacity is still unable to meet the demand in many countries. This leads to waiting times before surgery, prioritisation between patients and ultimately to deaths among the patients on the waiting list.Aims: 1. LÄS MER