Sökning: "Bertil Andersson"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Bertil Andersson.

  1. 1. Asthma in school age : prevalence, incidence and remission in relation to environmental determinants

    Författare :Martin Andersson; Eva Rönmark; Bertil Forsberg; Per Nafstad; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; asthma; wheeze; environment; prevalence; incidence; remission; vehicle traffic; sensitization; Occupational and Environmental Medicine; arbets- och miljömedicin;

    Sammanfattning : Background In the past half-century, the prevalence of asthma among children and adolescents has risen and asthma has become an important public health challenge in Sweden as well as in many other countries, necessitating further studies on this complex disease and its risk factor pattern. The studies included in this thesis aimed to investigate the clinical expression of childhood asthma over time, to describe the determinants of new-onset and remission of asthma, and to evaluate possible environmental risk factors in northern Sweden. LÄS MER

  3. 2. Improved breath alcohol analysis with use of carbon dioxide as the tracer gas

    Författare :Annika Kaisdotter Andersson; Mikael Ekström; Bertil Hök; Göran Hedenstierna; Johannes Lagois; Mälardalens högskola; []
    Nyckelord :elektronik; Electronics;

    Sammanfattning : State-of-the-art breath analysers require a prolonged expiration into a mouthpiece to obtain the accuracy required for evidential testing and screening of the alcohol concentration. This requirement is unsuitable for breath analysers used as alcolock owing to their frequent use and the fact that the majority of users are sober drivers; as well as for breath testing in uncooperative persons. LÄS MER

  4. 3. Essays on economic outcomes of immigrants and homosexuals

    Författare :Lina) Lina (current name Aldén Andersson; Mats Hammarstedt; Bertil Holmlund; Växjö universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Labour supply; Labour force participation; Policy evaluation; Immigrants; Self-employment; Intergenerational transmission; Occupational choice; Earnings; Sexual orientation; Discrimination; Field experiment; Housing market; Internet.; Economics; Nationalekonomi; Economics; Nationalekonomi;

    Sammanfattning : This thesis consists of five essays on the economic outcomes of immigrants and homosexuals on the labour and housing market.Essay I evaluates the effect of an in-work benefit on the labour supply of single immigrant women by means of simulation. LÄS MER

  5. 4. Peptidyl-prolyl cis-trans Isomerases in the Chloroplast Thylakoid Lumen

    Författare :Anna Edvardsson; Alexander Vener; Bertil Andersson; Per Gardeström; Linköpings universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Peptidyl-prolyl isomerase activity; Cyclophilin; FKBP; Immunophilin; Chloroplast Thylakoid Lumen; protein characterization; Medical cell biology; Medicinsk cellbiologi;

    Sammanfattning : The Sun is the ultimate energy source on Earth. Photosynthetic organisms are able to catalyze the conversion of solar energy to chemical energy by a reaction called photosynthesis. In plants, this process occurs inside a green organelle called the chloroplast. LÄS MER

  7. 5. The human-computer interface in commercial systems : Investigations of dialogue design factors and usability with alphanumeric display terminals

    Författare :Bengt Johnsson; Bertil Andersson; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; administrative process; administrative system; commercial system; controlled experimentation; criteria; design property; display terminal; field investigation; human-computer interface; man-computer dialogue; man-machine matching; terminal user; usability; Information Systems; Informatik;

    Sammanfattning : When terminal based computer systems are incorporated in administrative processes, man-computer interface technology for many reasons becomes a crucial problem area. Terminal users ("terminalists") in such systems account for a vast number of terminal hours. LÄS MER