Search for dissertations about: "hypotes"

Showing result 1 - 5 of 139 swedish dissertations containing the word hypotes.

  2. 1. Modelling Epidemic Influenza : A Novel Approach

    Author : Wah-Sui Almberg; Magnus Boman; Mats Danielsson; Paavo Pylkkänen; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer and Systems Sciences; data- och systemvetenskap;

    Abstract : Modellering av dynamiska förlopp i socio-biologiska komplexa system är långt ifrån trivialt. Behovet av fördjupad förståelse av sådana förlopp är många gånger stort. Vi har presenterat ett oortodoxt förslag på hur spridning av influensa i mänsklig population kan beskrivas och simuleras. READ MORE

  4. 2. Lab work in science education : Instruction, inscription, and the practical achievement of understanding

    Author : Oskar Lindwall; Berner Lindström; Tim Koschmann; Linköpings universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Lab work; science education; educational technology; classroom interaction; ethnomethodology; naturvetenskapliga laborationer; IT i utbildning; klassrumsstudier; etnometodologi; Education; Pedagogik;

    Abstract : Taking an analytical perspective founded on ethnomethodology and conversation analysis, the four studies presented in this thesis provide detailed analyses of video recorded lab work in mechanics at secondary and university level. The investigated activities all build on educational design afforded by a technology called probeware. READ MORE

  5. 3. Macroeconometric Studies of Private Consumption, Government Debt and Real Exchange Rates

    Author : Jesper Hansson; Nationalekonomiska institutionen; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; econometrics; Economics; Real exchange rate; Public debt; Structural VAR model; Cointegration; Habits; Permanent income hypothesis PIH ; economic theory; economic systems; economic policy; Nationalekonomi; ekonometri; ekonomisk teori; ekonomiska system; ekonomisk politik;

    Abstract : Advances in time series analysis during the last two decades have stimulated research in a number of areas in macroeconomics. This thesis is a compilation of five essays using cointegrated vector autoregressive (VAR) models, unit root tests and regime switching models to investigate the behavior of private consumption, public debt and the real exchange rate. READ MORE

  6. 4. Insights into the metabolism of Clostridium thermocellum for cellulosic ethanol production

    Author : Johannes Yayo; Antonius J. A. van Maris; Richard Sparling; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Clostridium thermocellum; ethanol; glucose; fructose; amino acids; pyrophosphate; chaotropicity; thermodynamic driving force; laboratory evolution; chemostats; metabolic engineering; Biotechnology; Bioteknologi;

    Abstract : The societal goal of reaching net-zero CO2 emissions requires development of integrated biorefineries to produce biomass-derived fuels and chemicals. For sustainable second-generation bioethanol production, consolidated bioprocessing with the thermophile Clostridium thermocellum is regarded as a promising concept in view of the microorganism’s native ability to efficiently degrade plant cell wall material. READ MORE

  7. 5. The accessibility and chemical activity of polycyclic aromatic hydrocarbons in soil

    Author : Fredrik Reichenberg; Centrum för analys och syntes; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Analytisk kemi; Analytical chemistry; Remediation; Bioavailability; Soil and sediment pollution; Environmental chemistry; Miljökemi;

    Abstract : This thesis proposes the use of two concepts: accessibility and chemical activity. Accessibility describes the mass quantity of PAHs that is or can become available within a given time span and under given conditions. READ MORE