Sökning: "Trends"

Visar resultat 1 - 5 av 1337 avhandlingar innehållade ordet Trends.

  1. 1. Trends of HIV infection in the Kagera region of Tanzania 1987-2000

    Författare :Gideon Kwesigabo; Anita Sandström; Japhet Killewo; Knut Fylkesnes; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; HIV infection; prevalence trends; incidence trends; declining trends; ANC sentinel surveillance; Kagera; Tanzania;

    Sammanfattning : .... LÄS MER

  3. 2. Silicon cycling in the Baltic Sea : Trends and budget of dissolved silica

    Författare :Liana Papush; Åsa Danielsson; Lars Rahm; Petra Tallberg; Linköpings universitet; []
    Nyckelord :Dissolved silica; trends; nutrient; nutrient ratios; diatoms; Redfield; limitation; eutrophication; riverine load; budget; fluxes; accumulation; retention; optimisation; Baltic Sea; Löst kisel; trender; näringsämne; näringsämnens kvoter; kiselalger; Redfield; tillväxtbegränsning; övergödning; flodtillförsel; budget; flöden; ackumulering; retention; optimering; Östersjön; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : The dissolved silicon (DSi) has a crucial role for growth of a large group of primary producers – diatoms and, hence, impact on functioning of the aquatic food web. This thesis contributes to an increased understanding of the modifications of the DSi cycling in the Baltic Sea. LÄS MER

  4. 3. Ungdomsbrottslighet som samhällsproblem : Utveckling, uppmärksamhet och reaktion

    Författare :Felipe Estrada; Hanns von Hofer; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Youth; crime; trends; violence; social problems; media; constructionism; realism; comparative; social control; moral panic; Criminology; Kriminologi; kriminologi; Criminology;

    Sammanfattning : The principal aim of this doctoral thesis is to describe the evolution of juvenile delinquency as a social problem during the post-war period. Through its four empirical studies the thesis advocates an understanding based on a contextual constructionism, which represents a compromise position between the objectivist and constructivist perspectives that dominate the field of social problems. LÄS MER

  5. 4. Trends in Magnetism : From Strong Correlations to “-onics” Technology

    Författare :Dmitry Yudin; Olle Eriksson; Grigori Volovik; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Strongly interacting electron systems; Spin dynamics; Topological matter; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Sammanfattning : Despite of enormous progress in experimental nanophysics theoretical studies of low-dimensional electron systems still remains a challenging task. Indeed, most of the structures are strongly correlated, so that an effective perturbative treatment is impossible due to the lack of a small parameter. LÄS MER

  7. 5. Profitability in Swedish manufacturing : trends and explanations

    Författare :Lennart Erixon; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Vinst;

    Sammanfattning : .... LÄS MER