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A numerical investigation of impingement heat transfer and fluid flow in a rectangular two-pass duct was carried out. The impingement wall was smooth or with periodically mounted square ribs. A multiblock parallel CFD code was employed for the calculation. The turbulence modeling was treated by applying a low Reynolds number turbulence eddy viscosity model (LEVM) and a V2F model. First, the calcul
Wnt-5a is a secreted glycoprotein which has been shown to be involved in the regulation of cell adhesion and motility, processes which are of importance in metastasis formation by cancer cells. We here present an initial study aiming at evaluating whether small interfering RNA (siRNA) in combination with cisplatin can be used to modulate protein expression levels under in vitro conditions. For thi
BACKGROUND: Maintaining endothelial function within transplanted organs may be critical to successful preservation. In this study we have evaluated the relationship between the effect of inhalation of nitric oxide and the degree of endothelial dysfunction after lung transplantation. METHODS: A left lung, which had been preserved for 24 hours, was transplanted and a right pneumonectomy was performe
Two first-line antihypertensive therapies for initiating treatment in hypertension were compared, the angiotensin-converting enzyme inhibitor (ACEI) zofenopril and the beta-blocker atenolol. The study was multi-centre and double-blind, and included 304 middle-aged to elderly patients with mild to moderate hypertension who were randomized to receive either zofenopril 30-60 mg once daily (od) or ate
Pathogenic bacteria have developed complex and diverse virulence mechanisms that weaken or disable the host immune defense system. IdeS (IgG-degrading enzyme of Streptococcus pyogenes) is a secreted cysteine endopeptidase from the human pathogen S. pyogenes with an extraordinarily high degree of substrate specificity, catalyzing a single proteolytic cleavage at the lower hinge of human IgG. This p
Solifluction movement rates from 1952 to 2008 for the Abisko region, northern Sweden, have been compiled and analysed through correlation tests and multiple regression. The temporal analysis is based on two datasets (Lobe11 & gridAB and Line B) from Karkevagge. The dataset Lobe11 & gridAB show a strong correlation between movement rates and mean annual air temperature (MAAT) and MAAT is al
Researchers of work-related musculoskeletal disorders are increasingly asked about the evidentiary base for mechanical exposure reductions. Mixed messages can arise from the different disciplinary cultures of evidence, and these mixed messages make different sets of findings incommensurate. Interventions also operate at different levels within workplaces and result in different intensities of mech
Here we report on the structure, expression and function of a novel cartilage-specific gene coding for a 17 kDa small, highly charged and secreted protein that we termed Ucma (Unique Cartilage Matrix Associated protein). The protein is processed by a furin-like protease into an N-terminal peptide of 37 amino acids and a C-terminal fragment (Ucma-C) of 74 amino acids. Ucma is highly conserved betwe
Objective: The purpose of this study was to examine the fisk of first-ever stroke in relation to use of hormone replacement therapy (HRT) among middle-aged and older Swedish women. Materials: A total of 16,906 women, 45-73 years old, from the 'Diet and Cancer' study in Malmo, Sweden were examined. Women were considered as HRT users if they took systemic hormone therapy regularly. Incidence of stro
A quantitative evaluation of the hydrolysis of wheat starch using Termamyl, a thermostable alpha-amylase (endo-l,4-alpha-D-glucan, glucanohydrolase; EC 3.2.1.78), is reported. Data from the monitoring of the hydrolysis of wheat starch indicated that, after 1 h, glucose and maltooligosaccharides up to DP 7 were the main hydrolysis products and thus enabled optimization of a liquefication step durin
The relationship between the North Atlantic oscillation (NAO) and winter temperature and precipitation over northern Europe has long been known. However, its strength is variable within this region. In this paper, an analysis of the regional variability of the influence of the NAO on winter precipitation in northern Europe is developed using empirical orthogonal function analysis, cluster analysis
A hallmark of the afflicted nervous tissue in amyotrophic lateral sclerosis is the presence of protein aggregates which to a large extent contain the intermediate filament protein peripherin. Here we show that activation of protein kinase C (PKC) or overexpression of PKCe induces the aggregation of peripherin in cultured neuroblastoma cells with elevated amounts of peripherin. The formation of agg
An action spectrum for photosensitivity in sponge larvae published by Leys et al. [J. Comp. Physiol., A, 2002, 188, 199–202] was interpreted by the authors as being due to a combination of light absorption by flavin or carotenoid in the blue region, and another pigment such as pterin in the long-wavelength region. Here we show here that their action spectrum closely matches the absorption spectrum
Two alkaline protease producing alkaliphilic bacterial strains, designated as AL-20 and AL-89, were isolated from a naturally occurring alkaline habitat. The two strains were identified as Nesternkonia sp. and Bacillus pseudofirmus, respectively. Both strains grew and produced alkaline protease using feather as the sole source of carbon and nitrogen. Addition of 0.5% glucose to the feather medium
To determine whether drying of nerve grafts can affect axonal outgrowth and proliferation of non-neuronal cells, nerve segments dried for 0-60 min were used as nerve grafts to bridge a gap in transected rat sciatic nerves. Axonal outgrowth was measured by pinch reflex test and confirmed by immunocytochemical staining of neurofilaments. The proliferation of non-neuronal cells was measured by incorp
We studied host selection and exploitation, two crucial aspects of parasite ecology, in Achrysocharoides parasitoid wasps, which show remarkable host specificity and unusual offspring sex allocation. We estimated a molecular phylogeny of 15 Achrysocharoides species and compared this with host (plant and insect) phylogenies. This tri-trophic phylogenetic comparison provides no evidence for cospecia
