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Showing result 1 - 5 of 1236 swedish dissertations matching the above criteria.

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

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

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

   Author : Liana Papush; Åsa Danielsson; Lars Rahm; Petra Tallberg; Linköpings universitet; []
   Keywords : 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;

   Abstract : 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. READ MORE

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

   Author : Lennart Erixon; Stockholms universitet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Vinst;

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

   Author : Dmitry Yudin; Olle Eriksson; Grigori Volovik; Uppsala universitet; []
   Keywords : 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;

   Abstract : 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. READ MORE

7. 5. Air pollution and health – Indicators, trends and impacts

   Author : Henrik Olstrup; Christer Johansson; Christina Ruden; Bertil Forsberg; Alain Le Tertre; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; air pollution; health; measurements; trends; impacts; mortality; NOx; elemental carbon; AQHI; Applied Environmental Science; tillämpad miljövetenskap;

   Abstract : This thesis focuses on some of the limitations and difficulties that exist when it comes to quantifying the human health effects that arise as a result of air pollution exposure. The following four issues are particularly analysed and discussed: 1) The measurement techniques used for carbonaceous particles and their lack of consistency; 2) Do the health risks associated with exposure to PM10 depend on the content of elemental carbon in the aerosol?; 3) Trends in air pollutants and the health effects that arise as a result of changed exposure to the measured pollutants; 4) The associations between the measured concentrations of different air pollutants in Stockholm and the daily number deaths; 5) Air quality indicators and health outcomes as basis for an air quality health index (AQHI). READ MORE