Sökning: "S 100"

Visar resultat 1 - 5 av 612 avhandlingar innehållade orden S 100.

  1. 1. Nuclear magnetic resonance studies on bentonite in complex mixed systems

    Författare :Alexander S. Goryan; Willis Forsling; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bentonite; montmorillonite; 23Na; 31P; 29Si NMR; interaction; ion exchange; sorption; Chemistry of Interfaces; Gränsytors kemi;

    Sammanfattning : In this work 23Na MAS NMR was validated as a successful quantitative method for studies of exchanging sodium in bentonites useful, in particular, for studies of ion-exchange kinetics. Na-enriched bentonites equilibrated in a re-circulated process water at iron-oxide pelletizing plants may acquire properties of Ca-bentonites after already 20 minutes of the equilibration time, since >50 % of sodium ions will be exchanged by calcium ions during first minutes of bentonite placed in contact with the process water. LÄS MER

  3. 2. Molecular mechanisms in vascular inflammation

    Författare :Peder S Olofsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Vascular inflammation plays an important role in a multitude of major diseases including sepsis and atherosclerosis. Sepsis has been estimated to account for more than 100 000 deaths per year in Europe. LÄS MER

  4. 3. The type IV Oligodendrocyte : experimental studies on chicken white matter

    Författare :Emma S. Anderson; Arthur M. Butt; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : In mammals, islet amyloid polypeptide (IAPP) is co-produced with insulin in pancreatic ß-cells. In the chicken, the expression of IAPP in the brain is more than 10-fold higher than in the pancreas. LÄS MER

  5. 4. Sediment Characteristics and Sedimentation Rate Estimation in the Dukan Reservoir

    Författare :Rebwar Hassan; Nadhir Al-Ansari; Sven Knutsson; Salahalddin S. Ali; Fadhil Ahmed Ameen; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Area-storage-capacity curves; Bathymetric survey; Dukan dam; Land use; Reservoir sedimentation; Sediment trap efficiency; SWAT; Soil Mechanics; Geoteknik;

    Sammanfattning : The Dukan Reservoir has been created from the construction of the Dukan Dam on the Lesser Zab River where it crosses the Khalakan Thrust Sheet (Khalakan Mountains) through a gorge 65 km northwest of Sulaimani and 295 km northeast of Baghdad. The Dukan Dam is a multi-purpose dam which was built from 1954 to 1959 to control the flooding of the Lesser Zab River, and to provide irrigation, hydroelectricity, and water storage. LÄS MER

  7. 5. Risk and survival for colorectal cancer in northern Sweden : sociodemographic factors and surveillance programs

    Författare :Olle Sjöström; Beatrice S. Melin; Lars H Lindholm; Richard Palmqvist; Johannes Blom; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Colorectal cancer; Risk factors; Cancer epidemiology; Endoscopy general; Health economy; Cancer prevention; Hereditary colorectal; Surveillance colonoscopy; Cancer Epidemiology; cancerepidemiologi; Genetics; genetik; Surgery; kirurgi; Oncology; onkologi;

    Sammanfattning : BackgroundColorectal cancer (CRC) – i.e., cancer in the colon or rectum – is one of the most common cancers both globally and in Sweden. The risk for CRC is mainly related to age, heredity, and life-style risk factors. LÄS MER