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Small-amplitude steady water waves with critical layers : Non-symmetric waves

The problem for two-dimensional steady water waves with vorticity is considered. Using methods of spatial dynamics, we reduce the problem to a finite dimensional Hamiltonian system. The reduced system describes all small-amplitude solutions of the problem and, as an application, we give a proof of the existence of non-symmetric steady water waves whenever the number of roots of the dispersion equa

Maternal half-sibling families with discordant fathers : A contrastive design assessing cross-generational paternal genetic transmission of alcohol use disorder, drug abuse and major depression

BackgroundWe introduce and apply an elegant, contrastive genetic-epidemiological design - Maternal Half-Sibling Families with Discordant Fathers - to clarify cross-generational transmission of genetic risk to alcohol use disorder (AUD), drug abuse (DA) and major depression (MD).MethodUsing Swedish national registries, we identified 73 108 eligible pairs of reared together maternal half-siblings an

Pancreatic lipolytic enzymes in human duodenal contents. Radioimmunoassay compared wih panreatic lipolytic enzyme activity

The total pancreatic lipolytic capacity was determined in duodenal contents in healthy humans 10-120 min after a liquid test meal, by estimating the amount of pancreatic lipase, colipase, carboxyl ester lipase, and phospholipase A2 by means of radioimmunoassays and enzymatic assays. The molar concentrations of the different proteins were of the same order of magnitude. The relative specific activi

The occupation-based intervention REDO™-10 : Long-term impact on work ability for women at risk for or on sick leave

Background: Stress-related disorders are increasing in western societies and are the main reason for sick-leave in Sweden. Previous research justifies occupation-based interventions to increase health and work ability. Aim: To investigate if the occupation-based intervention ReDO™-10 predicts work ability for women at risk for or on sick-leave. Material and Methods: A longitudinal cohort study des

Specific amino acid substitutions in β strand S2 of FtsZ cause spiraling septation and impair assembly cooperativity in Streptomyces spp.

Bacterial cell division is orchestrated by the Z ring, which is formed by single-stranded treadmilling protofilaments of FtsZ. In Streptomyces, during sporulation, multiple Z rings are assembled and lead to formation of septa that divide a filamentous hyphal cell into tens of prespore compartments. We describe here mutant alleles of ftsZ in Streptomyces coelicolor and Streptomyces venezuelae that

Changes in tyrosine phosphorylation in neocortex following transient cerebral ischaemia

Growth factor receptors activate protein tyrosine kinases, which are important for cell growth and survival. The protein tyrosine kinase (PTK) activity and the levels of phosphotyrosine (Ptyr) containing proteins were studied in the rat neocortex exposed to 15 min of transient cerebral ischaemia. The levels of the Ptyr containing proteins increase during recovery in the synaptosomal fraction, whil

Evidence for amelioration of ischaemic neuronal damage in the hippocampal formation by lesions of the perforant path

The effect of lesions of two excitatory afferent pathways on the cellular damage in the hippocampus following complete cerebral ischaemia was investigated in the rat Lesions transecting the perforant path led to a significant decrease in cellular damage in the hippocampal CA1 region ipsilateral to the lesion as compared to the contatterai side and to control. Lesions of the fimbria-fornix, on the

Trypsin activation of porcine procolipase. Kinetics of activation and effects on lipid binding

The kinetics of trypsin activation of pancreatic procolipase was investigated and the pH dependence of the binding of procolipase and colipase to a tributyrine-bile salt interface studied. The Km was 0.06 mM and Kcat 8 s-1, and was of the same order of magnitude as for the activation of pancreatic zymogens. At basic pH values colipase had a higher affinity for the tributyrine-bile salt interface a

Protection against ischemia-induced neuronal damage by the α2-adrenoceptor antagonist idazoxan : influence of time of administration and possible mechanisms of action

The protective effect of the α2-receptor antagonist idazoxan against neuronal damage in the neocortex and in the hippocampal CA1 region was studied in rats exposed to 10 min of incomplete forebrain ischemia. When administered i.v. immediately after ischemia (0.1 mg/kg) and subsequently for 6 h (10 μg/kg/min), idazoxan significantly reduced neuronal damage in the hippocampus (from 84 to 26%) and in

Cyclosporin A and its nonimmunosuppressive analogue N-Me-Val-4-cyclosporin A mitigate glucose/oxygen deprivation-induced damage to rat cultured hippocampal neurons

When mouse hippocampal neuronal cultures, 2-3 weeks in vitro, were transiently exposed to combined glucose and oxygen deprivation (100% argon, 5% CO2, in glucose-free medium) for 90 min, extensive neuronal degeneration had occurred after 24 h of reoxygenation. When these cultures were preincubated with cyclosporin A, a calcineurin inhibitor and a blocker of the mitochondrial permeability transitio

The role of urban design in enhancing the microclimate and thermal comfort in warm-humid Dar es Salaam, Tanzania

Due to the complexity of the outdoor environment, urban design patterns considerably affect the microclimateand outdoor thermal comfort in a given urban morphology. Parameters such as building height and orientation,spaces between buildings, plot coverage, etc influence the microclimate in terms of solar access, shade, windspeed and direction. In warm-humid Dar es Salaam, the consideration of micr

Living Anonymous Renal Donors Do Not Regret : Intermediate and Long-Term Follow-Up with a Focus on Motives and Psychosocial Outcomes

BACKGROUND Living anonymous donation (LAD) of kidneys was introduced in Sweden in 2004. This study reports on outcomes of Swedish LAD experiences from 2004 to 2016, focusing on donors' motives, the care they received, psychosocial aspects, and medical status at follow-up. MATERIAL AND METHODS Donor data were collected through a physician interview, medical check-up, review of medical charts, the H

Nucleation-limited composition of Al 1-x In x As nanowires

Despite the great advances in synthesis of III-V ternary nanowires over the past decade, there is a lack of understanding and detailed information about Al 1-x In x As nanowire growth. Recently, we have developed an analytical approach for understanding the composition of ternary nanowires nucleating from a quaternary liquid melt. Herein, we use our model to describe the formation of Al 1-x In