Sökning: "trend study"

Visar resultat 1 - 5 av 959 avhandlingar innehållade orden trend study.

  1. 1. Complicated gallstone disease in Sweden 1988-2006 : a register study

    Författare :Birger Sandzén; Mikael Öman; Erik Nilsson; Roland Andersson; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Gallstone disease; acute pancreatitis; acute biliary pancreatitis; common bile duct stones; acute cholecystitits; acute gallbladder disease; cholecystectomy; ERCP; endoscopic papillotomy; choledochotomy; Surgery; Kirurgi; kirurgi; Surgery;

    Sammanfattning : Background The gallstone prevalence in the western world is 10-20%. Most gallstones are silent, but symptoms and complications appear in 20-40%. The incidence of symptom development in patients with silent gallstones is 2-4% per year. LÄS MER

  3. 2. Återbesök i Eskilstuna : En undersökning av morfologisk variation och förändring i nutida talspråk

    Författare :Eva Sundgren; Lars-Gunnar Andersson; Bengt Nordberg; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Scandinavian languages - general; Sociolinguistic variation; language change; spoken Swedish; Eskilstuna; morphology; real time; apparent time; panel study; trend study; individual change; generational change; intralinguistic constraints; salience; quantitative analysis; implicational scaling; local integration; social mobility; Nordiska språk - allmänt; Scandinavian languages; Nordiska språk; nordiska språk; Scandinavian Languages; Languages and linguistics;

    Sammanfattning : Real-time replications of empirical studies of language use are scarce. This study of language change in real time replicates an investigation of the social variation of spoken Swedish in the medium-sized town of Eskilstuna, using data collected 29 years after the original study. LÄS MER

  4. 3. Symptoms, prehospital delay and long-term survival in men vs. women with myocardial infarction : a combined register and qualitative study

    Författare :Rose-Marie Isaksson; Mats Eliasson; Christine Brulin; Karin Zingmark; Bengt Fridlund; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; myocardial infarction; symptoms; prehospital delay; men and women; long-term survival; time trend; experiences; Nursing; Omvårdnad; omvårdnadsforskning med medicinsk inriktning; Caring Sciences;

    Sammanfattning : The general aim of this thesis was to study symptoms, prehospital delay and time trends in long-term survival in men and women with myocardial infarction (MI). The study was based on quantitative and qualitative data collections. LÄS MER

  5. 4. Epidemiology of asthma in primary school children

    Författare :Anders Bjerg Bäcklund; Eva Rönmark; Bo Lundbäck; Thomas Sandström; Giovanni Viegi; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Asthma; wheeze; child; allergic sensitisation; prevalence; remission; risk factor; trend; Lung diseases; Lungsjukdomar;

    Sammanfattning : Background: Childhood asthma has increased worldwide, although recent studies report a prevalence plateau in some western countries.Aims: To investigate the prevalence of asthma and the associated risk factor patterns from ages 7-8 to 11-12 with special emphasis on the hereditary component, and further to study prevalence trends at age 7-8 from 1996 to 2006 and the possible determinants of these trends. LÄS MER

  7. 5. Defects and Impurities in CdTe : An ab Initio Study

    Författare :Anna Lindström; Mattias Klintenerg; Susanne Mirbt; Biplab Sanyal; Peter Zahn; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Native defects; Compensation mechanisms; Semiconductor doping; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Sammanfattning : In this thesis defects and impurities in CdTe have been studied with ab initio methods. CdTe is a II-VI semiconductor with many important applications such as γ- and X-ray detectors, solar cells and medical imaging. LÄS MER