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The psychobiology of aggressive behaviour.

Among psychiatric illnesses, genetically determined disorders usually have an early onset and a severe and complicated course. Gene-environmental interaction is of importance for aggressive impulsive behaviour. For example, alcoholism type II has a high family loading, a severe course, and is often associated with antisocial behaviour. In order to gain further understanding of aggressive and impul

Metabolism of [N-15]alanine in the ectomycorrhizal fungus Paxillus involutus

Alanine metabolism in the ectomycorrhizal fungus Paxillus involutus was investigated using [N-15]alanine. Short-term exposure of mycelial discs to [N-15]alanine showed that the greatest flow of N-15 was to glutamate and to aspartate. Levels of enrichment were as high as 15-20% for glutamate and 13-18% for aspartate, whereas that of alanine reached 30%. Label was also detected in the amino-N of glu

A gene conferring susceptibility to type 2 diabetes in conjunction with obesity is located on chromosome 18p11

Genome-wide nonparametric linkage analysis of 480 sib-pairs affected with type 2 diabetes revealed linkage to a previously unreported susceptibility locus on chromosome 18p11. This result improved with stringent subphenotyping using age- and sex-adjusted BMI, ultimately reaching a logarithm of odds of 3.82 (allele sharing 0.6654) at a point between markers D18S976 and D18S391 when the most obese 2

First report of Amoebophrya sp parasites infecting dinoflagellates from Brazilian coastal waters

Members of the parasitic dinoflagellate genus Amoebophrya lethally infect other marine dinoflagellates, including red tide forming and toxin-producing species. The known geographical distribution of Amoebophrya sp. parasites in costal waters of the northern hemisphere is more likely reflecting a lack of information from other areas rather than the actual picture. We investigated the presence of Am

Tidningsmakt och politiska organisationer : den borgerliga samlingsrörelsen i Fyrstadskretsen 1962-1968

The big Malmö newpapers Sydsvenska Dagbladet and Kvällsposten, both owned by the family Wahlgren, involved themselves heavily in Swedish party politics in the 1960s. The Social Democrats had in 1962 been in almost permanent power in Sweden since 1932. There was a desperate wish for change in power among many Swedishy voters. In this atmosphere Olof Wahlgren, Sydsvenska Dagbladet´s deputy editor,

Increased risk of developing atrophic gastritis in patients infected with CagA+ Helicobacter pylori

BACKGROUND: To clarify the possible role of CagA positive (CagA+) Helicobacter pylori strains in the development of atrophic gastritis, the prevalence of antibodies to H. pylori and CagA (120 kD protein) was studied among subjects with atrophic and non-atrophic gastritis. METHODS: The study population was randomly selected among 12,252 Finnish men who were screened for atrophic corpus gastritis wi

Loss rate asymptotics in a GI/G/1 queue with finite buffer

We consider the stationary loss rate l(K) of a GI/G/1 queue with finite buffer of size K. Let X-n = U-n - T-n, n >= 1 where U-n is the service time, T-n is the interarrival time and let rho be the traffic intensity. We derive sharp asymptotics for the loss rate as K -> infinity, in the cases (i): rho > 1, and (ii): rho < 1 and X-n non-lattice with light tails. We also look at another reflection, r

Interactions driving the population cycle of Arctic small rodents

The cyclicity of Arctic populations of small rodents is a subject with a long history and a large literature (Batzli, 1992) in which the question "What drives the cycle?" has received many answers, among them that the source of the cycle is either rodent interaction with food or the interaction with predators or both. Another question concerns the confinement of the cycle to Arctic conditions. The