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A jack-of-all-trades and still a master of some: prevalence and host range in avian malaria and related blood parasites

A parasite's ability to be a specialist vs. a generalist may have consequences for its prevalence within one or more if its host species. In this study we investigated the relationship between host specialization and prevalence in the highly species diverse avian blood parasites of the genera Plasmodium and Haemoproteus. Contrary to trade-off hypotheses that may explain host specialization, within

Snus user identity and addiction. A Swedish focus group study on adolescents

Background: The teenage years are the years when adolescents seek their identity, and part of this involves experimenting with tobacco. The use of tobacco as such, and norms among their friends, is more important to the adolescents than the norms of parents when it comes to using tobacco or not. The aim was to explore the significance of using snus for adolescents, and attitudes to snus, as well a

Modeling the Surfactant Uptake in Cross-Linked DNA Gels

The deswelling behavior of cross-linked DNA gels reports on DNA-cosolute interactions and gives a basis for the development of responsive DNA formulations. An investigation of the deswelling kinetics shows that an increase in the surfactant tail length gives a pronouncedly slower deswelling kinetics. In the same conditions, single stranded gels exhibited faster deswelling kinetics when compared wi

Vem äger makten i parlamentet?

Sverige har ett mäktigt parlament, kanske det mäktigaste i den demokratiska världen. I avsaknad av alla de viktiga instrumenten för horisontell maktdelning har all offentlig makt samlats i riksdagen. Det är dock inte liktydigt med att de svenska riksdagsledamöterna är inflytelserika i motsvarande grad. I vad mån så är fallet bestäms av en rad faktorer, inte minst av valsystemet. Men också riksdage

A theoretical study on the heat transfer process in diesel engines

The current and future emissions regulations and demands on internal combustion engines have increased the need for improvement of the thermal design and engine ef ciency. This paper reports an initial investigation concerning in-cylinder heat transfer. In addition, a literature review in this eld is presented. It was found that no extensive application studies have been performed on full cylinder

Seasonal variation in self-reported arousal and subjective health complaints

Many aspects of human physiology and behavior are seasonally related. Although there are many studies using self-ratings of, for example, subjective health and stress, few involve adjusting effects for seasonal differences. To estimate the need of adjusting for season in field studies, 24 healthy men and women were studied in a design that required them to fill in questionnaires on one workday eve

Aspect as a sign of historical development

This paper analyses a specific stage in the development of alignment system in Indo-European languages. It is argued that one of the most crucial stages is the appearance of binary features, which allows the language to develop into a form ready for dealing with complex functional demands.

Calcium calmodulin-dependent protein kinase signal transduction in cerebral arteries

Popular Abstract in Swedish Hjärnan är ett organ som utgör 2 % av kroppsvikten men som mottar ca 20 % av hjärtats minut volym och har en mycket hög energi konsumtion. I samband med en blodpropp i något av hjärnas blodkärl eller att ett av hjärnans kärl brister får man en stroke eller cerebral ischemi. Man har under många decennier inriktad sig på den akuta behandlingen på att finna ett sätt att reCerebral arteries participate actively in the response that follows an episode of cerebral ischemia in man and rat. It has been shown that the vascular endothelin receptor expression is increased in stroke and organ culture. Furthermore, studies have demonstrated the intracellular signalling pathways, leading to the enhanced expression of vascular endothelin receptors. We have revealed that both c

The effectiveness of an anti-stigma intervention in a basic police officer training programme: a controlled study.

Stigma and discrimination are still prominent features of the life situation of persons with mental illness, adding to the burden of the illness, causing a lowered self-esteem, quality of life and affecting possibilities of adequate housing and work. It is also a major barrier to help seeking. The deinstitutionalization of mental health services has led to a significant increase in contacts betwee

Experimental porcine models of retinal ischemia

Popular Abstract in Swedish Näthinnan (retina) ligger längst bak i ögat och fungerar som filmen i en kamera. Stavar och tappar registrerar ljus och signalen går via nerver till syncentra i hjärnan. Blodkärl löper genom näthinnan och förser cellerna med syre och näring samt transporterar bort slaggprodukter. Kärlsjukdomar, som t.ex. diabetes, blodproppar i näthinnan till följd av åderförkalkning ocRetinal ischaemia resulting from e.g. diabetes, vein thrombosis or arterial occlusion, is one of the major causes of visual impairment and blindness. Although new methods of treatment are being developed, there is still a need for more effective pharmacological forms of treatment. The aim of this work was to develop an appropriate animal model of retinal ischaemia in which the intracellular signal

Changing pattern in the prescription of biological treatment in rheumatoid arthritis. A 7-year follow-up of 1839 patients in southern Sweden

Objective: To study prescription patterns of biological treatment in rheumatoid arthritis ( RA) patients in southern Sweden, a region with no formal or economic restrictions for the use of biological treatment in rheumatological diseases. Specifically, we studied conformity with the national Swedish guidelines for biologics in RA. Methods: Rheumatologists in southern Sweden contribute to a volunta

Mannen som gifte sig med en bäver : Ett omöjligt äktenskap?

I kanadensiska mi'kmaqberättelser, vilka nedtecknades under tiden som gruppen levde som jägare och samlare, finna flera skildringar av djur som flitiga agenter. Det finns till och med berättelser om äktenskap mellan människor och djur som dock alltid slutar olyckligt. Hur ska dessa berättelser läsas? Som nonsens eller säger de något om gränser och förhållningssätt till det vi i väst dikotomiserat

Mapping the d-d Excited-State Manifolds of Transition Metal beta-Diiminato-Imido Complexes. Comparison of Density Functional Theory and CASPT2 Energetics

Trigonal-planar, middle transition metal diiminato-imido complexes do not exhibit high-spin states, as might be naively expected on the basis of their low coordination numbers. Instead, the known Fe(III), Co(III), and Ni(III) complexes exhibit S = (3)/(2), S = 0, and S = (1)/(2), ground states, respectively. Kohn-Sham DFT calculations have provided a basic molecular orbital picture of these compou