Search for dissertations about: "variation"

Showing result 1 - 5 of 4176 swedish dissertations containing the word variation.

  2. 1. Spatial variation : Stachastic models and their application to some problems in forest surveys and other sampling investigations

    Author : Bertil Matérn; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  4. 2. Teaching for the learning of additive part-whole relations : The power of variation and connections

    Author : Anna-Lena Ekdahl; Ulla Runesson Kempe; Hamsa Venkat; Camilla Björklund; Christiane Benz; Jönköping University; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; variation; variation theory; connections in teaching; making connections; early numbers; teaching and learning additive relations; part-whole relation; part-whole relations of numbers; intervention study;

    Abstract : In this thesis, results from four empirical studies and a re-analysis are synthesized with what can constitute a structural approach to teaching and learning additive part-whole relations among learners aged four to eight years. In line with a structural approach to additive relations, the relations of parts and whole are in focus from the outset and are seen as the basis for addition and subtraction (Davydov 1982; Neuman, 1987). READ MORE

  5. 3. Population-level consequences of variation

    Author : Lena Wennersten; Anders Forsman; Olof Leimar; Deepa Agashe; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; colour polymorphism; diversity; establishment success; evolutionary changes; population-level consequences; predation risk; Tetrix subulata; variation; Evolutionary Biology; Evolutionsbiologi;

    Abstract : Consequences of within population variation have recently attracted an increased interest in evolutionary ecology research. Theoretical models suggest important population-level consequences, but many of these predictions still remain to be tested. READ MORE

  6. 4. Metabolic variation in autoimmune diseases

    Author : Rasmus Kirkegaard Madsen; Johan Trygg; Thomas Moritz; Torbjörn Lundstedt; Matej Oresic; Umeå universitet; []
    Keywords : Rheumatoid Arthritis; Diabetes Mellitus type 1; Metabolic Profiling; Metabolomics; Chemometrics; Multivariate Data Analysis; Mass Spectrometry; biologisk kemi; biological chemistry;

    Abstract : The human being and other animals contain immensely complex biochemical processes that govern their function on a cellular level. It is estimated that several thousand small molecules (metabolites) are produced by various biochemical pathways in humans. READ MORE

  7. 5. Seasonal variation and landscape regulation of dissolved organic carbon concentrations and character in Swedish boreal streams

    Author : Anneli Ågren; Mats Jansson; Irena Creed; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; DOC; temporal variation; spatial variation; seasonal variation; forested catchment; wetland catchment; catchment characteristics; DOC characteristics; absorbance-ratio; bioavailability.; Physical geography; Naturgeografi;

    Abstract : The seasonal variation and landscape regulation of dissolved organic carbon (DOC) concentrations in streams have been studied in two watersheds in the boreal zone. The seasonal variation was found to be highly correlated to variations in runoff. An increase in runoff was always accompanied with an increase in DOC concentration. READ MORE