Sökning: "scientists"

Visar resultat 21 - 25 av 351 avhandlingar innehållade ordet scientists.

  1. 21. Kommunikation inom vetenskap och teknik

    Författare :Lars Höglund; Olle Persson; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Science; information; communication; information needs and uses; user education; evaluation of information systems; sociology of science; research and development; R D; I D; informal communication;

    Sammanfattning : The rapid growth of Science and Technology has made the use of scientific information a problem of international concern. To keep abreast of current research the scientist and engineer can use a multitude of information sources. LÄS MER

  3. 22. Building blocks for polymer synthesis by enzymatic catalysis

    Författare :Stefan Semlitsch; Mats Martinelle; Sergio Riva; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Enzyme; Enzyme Engineering; Biocatalysis; Lipase; CalB; MsAcT; Substrate specificity; Selectivity; Polymer Chemistry; Polymer Synthesis; Bioteknologi; Biotechnology;

    Sammanfattning : The search for alternatives to oil-based monomers has sparked interest for scientists to focus on the use of renewable resources for energy production, for the synthesis of polymeric materials and in other areas. With the use of renewable resources, scientists face new challenges to first isolate interesting molecules and then to process them. LÄS MER

  4. 23. Measurements of X-Ray Emission from Laboratory Sparks and Upward Initiated Lightning

    Författare :Pasan Hettiarachchi; Vernon Cooray; Mats Leijon; Mahbubur Rahman; Marcos Rubinstein; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray; upward lighting; laboratory discharges; energy distribution;

    Sammanfattning : In 1925 Nobel laureate R. C. Wilson predicted that high electric fields of thunderstorms could accelerate electrons to relativistic energies which are capable of generating high energetic radiation. The first detection of X-rays from lightning was made in 2001 and from long sparks in 2005. LÄS MER

  5. 24. The Making of Valid Data : People and Machines in Genetic Research Practice

    Författare :Corinna Kruse; Boel Berner; Minna Salminen Karlsson; Anne-Jorunn Berg; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; biomedicine; genetic research; laboratory practices; cultural practice; professional skill; uncertainty; valid data; humans – machines; objectivity – subjectivity; ethnography; biomedicin; genetisk forskning; laboratoriepraktiker; kulturell praktik; yrkesskicklighet; osäkerhet; giltiga data; människor – maskiner; objektivitet – subjektivitet; etnografi; Technology and social change; Teknik och social förändring;

    Sammanfattning : Avhandlingen undersöker ett centralt steg inom vetenskapliga praktiker: hur laboratorieprov översätts till data som anses giltiga och användbara av forskargemenskapen. Baserat på ett multilokalt fältarbete bestående av observationer och intervjuer i laboratorier för genetisk forskning, visas i avhandlingen hur laboratoriepersonalens yrkesskicklighet, samt normer och ideal om vetenskaplig forskning, formade deras praktiker av att producera giltiga data. LÄS MER

  7. 25. A normative application of multi-modal systems thinking to a non-viable social system

    Författare :Veronica D. de Raadt; Luleå tekniska universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Social Informatics; Informatik;

    Sammanfattning : This research evaluates how multi-modal systems thinking, a normative approach to systems science, answers to the theoretical, practical and ethical demands emerging from research in sustainability and to systems scientists concerned with the norms of life and ethics. The thesis starts with a broad survey of sustainability literature and concludes that this multi-modal systems methodology, which has emerged during the last decade, has a significant contribution to make. LÄS MER