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Low genetic diversity among isolates of the nematode-trapping fungus Duddingtonia flagrans: evidence for recent worldwide dispersion from a single common ancestor

The genetic variation of Duddingtonia flagrans, which has become a promising biocontrol agent of animal parasitic nematodes, was investigated in a worldwide collection of 22 isolates. We analysed the sequence variation in four nuclear genes, tubA (beta-tubulin), CMD1 (calmodulin), EF1alpha (translation elongation factor 1alpha), and PII (extracellular serine protease). 1428 aligned base pairs (bp)

Prognostic implications of cytogenetic aberrations in diffuse large B-cell lymphomas

A single institution series of 81 consecutive, cytogenetically analyzed, diffuse large B-cell lymphomas (DLBL), the majority of which treated with anthracycline-containing combination chemotherapy, were reviewed retrospectively to investigate whether the karyotypic pattern or certain abnormalities correlate with survival. Clonal chromosome changes were found in 79 of the 81 cases. The prognostic i

Differential regulation of mnp2, a new manganese peroxidase-encoding gene from the ligninolytic fungus Trametes versicolor PRL 572

A peroxidase-encoding gene, mnp2, and its corresponding cDNA were characterized from the white-rot basidiomycete Trametes versicolor PRL 572. We used quantitative reverse transcriptase-mediated PCR to identify mnp2 transcripts in nutrient-limited stationary cultures. Although mnp2 lacks upstream metal response elements (MREs), addition of MnSO4 to cultures increased mnp2 transcript levels 250-fold

Essays on Panel Cointegration

Popular Abstract in Swedish Denna avhandling utvecklar nya tekniker för analys av kointegrationssamband i paneldata. Det första kapitlet är en introduktion medan de resterande sex innehåller avhandlingens huvudsakliga bidrag. Det andra kapitlet behandlar estimering av kointegrationssamband när regressorerna är endogena, vilket medför att minsta kvadratmetoden inte längre är väntevärdesriktig om dThis thesis develops new techniques for analyzing cointegrated relationships in panel data. The first chapter is introductory while the remaining six contain the main contributions. The second chapter is concerned with the estimation of a cointegrated panel relation with endogenous regressors, in which case the least squares estimator is biased unless it is conditioned on the lags and leads of th

Towards an analysis of voting power in parliament: an exploration into coalition-making in Nordic parliaments

In this explorative paper, coalitions in national assemblies are analysed as n-person games with the Penrose-Banzhaf solution concept. It is shown that forming minority coalitions may result from a rational strategy to maximize voting power. Thus, there is no need to attempt a permanent minimum winning coalition. Moreover, maximizing voting power for a group of players like a disciplined political

Isthmic lumbar spondylolisthesis with sciatica. MR imaging vs myelography

Seventeen patients with sciatica and isthmic lumbar spondylolisthesis were studied with magnetic resonance (MR) imaging. In 13, myelography was also performed: 5 had dural sac deformation and root sleeve shortening, 2 had deformation with unilateral root sleeve shortening, one had bilateral root sleeve shortening only, and one had sac deformation only. In 4, myelography was normal. On sagittal MR

Exhaustion is differentiable from depression and anxiety: Evidence provided by the SF-36 vitality scale.

Stress-related exhaustion is an increasingly focused phenomenon, although scientifically not yet fully conceptualised. This is perhaps partly due to the fact that the distinction between exhaustion and other already established concepts, such as depression, is not clear. This study explores whether exhaustion can be differentiated from depression and anxiety, by means of introducing the SF-36 vita

Ultraweak light emission, free radicals, chilling and light sensitivity

Ultraweak light emission (UWLE) was measured from leaves of various chillingsensitive (Lycopersicon esculentum, Cucumis sativus and Phaseolus vulgaris) and tolerant (Pisum sativum and Vicia faba) plants after exposure to low (47C) temperature in the light. UWLE increased upon chilling treatment combined with illumination with 200 mol m2 s1 PAR in all plants, by about 30 in tolerant and by more tha

Execution-Time Properties of a Hybrid Controller

We are interested in gaining more knowledge about the execution-time requirements of real-time control tasks, and this paper presents a system for gathering statistics of the execution times of real-time tasks. The system allows real-time code to be instrumented in order to gather, analyze, and present execution-time statistics. It has been used to instrument an existing hybrid controller to gathe

Biogas production from crop residues on a farm-scale level: is it economically feasible under conditions in Sweden?

Anaerobic digestion would enable the energy potential of agricultural crop residues such as sugar beet tops and straw to be harnessed. Sweden is so spread out that full utilisation of this potential by centralised slurry-based technology is difficult. It appears that simple but effective high-solids reactor systems have a better chance of being economically viable on a farm-scale level (50500 kW).

Structural studies of thymidine kinases from Bacillus anthracis and Bacillus cereus provide insights into quaternary structure and conformational changes upon substrate binding

Thymidine kinase (TK) is the key enzyme in salvaging thymidine to produce thymidine monophosphate. Owing to its ability to phosphorylate nucleoside analogue prodrugs, TK has gained attention as a rate-limiting drug activator. We describe the structures of two bacterial TKs, one from the pathogen Bacillus anthracis in complex with the substrate dT, and the second from the food-poison-associated Bac