Popular Abstract in Swedish Öbiogeografi och populationsdifferentiering hos Skyros murödla Hur den fantastiska variationen som finns i naturen bildas är en fråga som länge fascinerat biologer. För mer än 150 år sedan inledde två välkända biologer, Charles Darwin och Alfred Russel Wallace, en brevväxling som skulle komma att bli startskottet för ett paradigmskifte. De hade båda fått idén om naturlIslands are cradles for new biodiversity and provide natural laboratories for the study of population divergence. In my thesis, I investigated the role of different evolutionary processes in the population divergence in the Skyros wall lizard (Podarcis gaigeae), a species where islet populations have strongly diverged morphologies. I used replicate islet populations and their respective most proxi

The House Sparrow (Passer domesticus) began to colonize the Faroe Islands in the mid-1940s and occurs in most built-up areas. Breeding is confined to the discrete human habitations (settlements) that form a pattern of patches (”habitat-islands”). In 2002 all settlements were surveyed and the number of pairs of sparrows (total number ca. 2,700 pairs) and amount of vegetation (”green space”) were es

Stress som begrepp har dessvärre kommit att stå för allt och inget. Samhällets reaktioner på överbelastning och sjukskrivningar har till stor del kommit att resultera i dellösningar som inte räcker särskilt långt. Här diskuterar sju forskare vad som är sj

Grammar and epigram Grammarians of antiquity—the precursors later generations of classical philologists—were often the target of attacks by contemporary writers of satiric epigrams. Examples appear in collections of both Greek and Latin epigrams from the Hellenistic period down to the end of antiquity. Grammarians are generally depicted in them as pretentious humbugs, a pest both to poets, whose w

The inability of organisations to develop successfully and their lack of a holistic view and of relevant quantitative facts are factors that played a major role in my choice of a research area for this and my licentiate thesis (Ljungberg, 1994). These two theses together represent the work conducted for the PhD degree. There is a strong need in this research area for increased insight into the de

This introduction to the biology of standing waters integrates the effects of abiotic constraints and biotic interactions at both the population and community level, and examines how the distribution and success of different organisms in this freshwater habitat can be explained and predicted

Abstract: Parkinson’s disease (PD) is a common neurodegenerative disorder. There is no proven protection, but many treatments can partially improve symptoms. The disease is caused by monogenetic mechanisms in very few cases, but for the majority of patients the etiology is unknown. Epidemiological studies have identified a potential role for inflammation. The thesis investigates inflammation and i

Collagen-induced arthritis (CIA) is a T cell-dependent autoimmune disease that serves as an animal model for human rheumatoid arthritis. CIA can be induced in H-2q mice by a single immunization with the cartilage-specific protein type II collagen (CII). This study has focused on CII immunity and tolerance with respect to the interactions between antigen, antigen-presenting cells and T cells. CIA-r

Stadsplanering är ett komplicerat och mångfasetterad begrepp. Denna rapport är en förstudie om hur begreppet stadsplanering kan definieras och vilken möjlighet stadsplanering har för att påverkar stadens transporter, bebyggelsestruktur, resvanor, bilägande/användning, välfärdsfördelning (ex. segregation) och ekonomisk utveckling/handel. Rapporten utgår dels från en litteraturstudie, dels från inte

Description of how to do a narrative literature reviews conducted within a given theoretical framework

Popular Abstract in Swedish Tre av huvudets blodkärlsregioner - hjärnans, den h rda hjärnhinnans och tinningens puls dror, har undersökts med avseende p förekomst av nerver inneh llande signalsubstanser som kallas neuropeptider. Tv av dessa är substans P (SP) och kalcitonin gen-relaterad peptid (CGRP) vilka finns i nerver som förmedlar känselupplevelser, till exempel smärta. Andra är neuropeptid YThe sensory neuropeptides substance P (SP) and calcitonin gene-related peptide (CGRP) are present in human cerebral, meningeal and temporal arteries, as are peptides associated with the sympathetic (neuropeptide Y, NPY) and parasympathetic (vasoactive intestinal peptide, VIP) nervous system. NPY is a vasoconstrictor in cerebral and meningeal arteries and potentiates noradrenaline (NA) as a vasocon