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Iron nutrition dynamics - Differences between calcicole and calcifuge plants

One third of the earth´s soils is calcareous. Calcifuge plants are excluded from these soils, and one of the main causes is Fe deficiency, as Fe solubility in calcareous soil is very low. A lack of Fe lowers chlorophyll content, visible as yellowing of leaves, called chlorosis. It is demonstrated that the main cause of chlorosis in calcifuges is that a large part of the Fe in their leaf tissues i

Förord

Förord till den svenska översättningen av John Dewey "Human Nature and Conduct".

Why internal validity is not prior to external validity

We show that the common claim that internal validity should be understood as prior to external validity has, at least, three epistemologically problematic aspects: experimental artefacts, the implications of causal relations, and how the mechanism is measured. Each aspect demonstrates how important external validity is for the internal validity of the experimental result.

Synthesis and applications of analogues of Tröger's base as molecular tubes, receptor and ligands

Popular Abstract in Swedish Trögers bas är en molekyl som syntetiserades första gången 1887. Molekylen är stel, C2-symmetrisk och böjd i ca 90° vinkel och den formar en kiral hydrofob ficka. I denna avhandling beskrivs syntesen av nya analoger av Trögers bas. Aniliner, substituerade med halider i 2- och 3-position, har för första gången kondenserats till analoger av Trögers bas. Dessutom har det vTröger’s base was synthesized for the first time in 1887. The molecule is rigid, C2-symmetric and has a 90° angle, forming a chiral hydrophobic pocket. In this thesis, the synthesis of new analogues of Tröger’s base is described. 2- and 3-halo-substituted anilines have for the first time been condensed to Tröger’s base analogues. It has also been shown that anilines without substituents in para-po

Experimental and numerical study of ground vortex interaction in an air-intake

The airflow field around air-intake related geometries has been investigated experimentally and numerically. The configuration of the experimental set-up is used to model a jet engine running near the ground. The experiments have been carried out using both PIV and LDA techniques in order to obtain the mean and fluctuating velocity field as well as the low speed frequencies related to the system o

Grannen vet bäst - Faktorer som påverkar hushållens val av energiformer

In today’s society people are overwhelmed with information about different kinds of heating systems. The purpose of this study is to examine the factors that impact households when they make decisions on heating systems, and also how households value different types of information on the subject. Four Swedish municipalities were chosen for closer examination. Municipal energy advisors and represe