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Global existence for elliptic equations with dynamic boundary conditions
We prove under quite general assumptions the global existence of classical solutions for elliptic equations with dynamic boundary conditions.
Retinal function and histopathology in rabbits treated with Topiramate.
Purpose To evaluate retinal function and histopathology in rabbits treated orally with the antiepileptic drug topiramate. Methods Six rabbits were treated with a daily oral dose of topiramate during a period of eight months. Six rabbits receiving water served as controls. Blood samples were analyzed for determination of topiramate serum levels in order to ensure successful drug exposition. Standar
Bioactive alkenylphenols from Piper obliquum.
Various parts of Piper obliquum Ruíz & Pavon yielded the new alkenylphenols obliquol A (1) and obliquol B (2), the new 4-chromanone 3 together with the known compounds 4 and 5. A synthesis of obliquol B (2) was developed in order to confirm its structure and to provide sufficient amounts for biological testing. Compounds 1 and 2 have antibacterial activity comparable to that of ampicillin, 2 i
Solution structure of the apical stem-loop of the human hepatitis B virus encapsidation signal
Hepatitis B virus (HBV) replication is initiated by HBV RT binding to the highly conserved encapsidation signal, epsilon, at the 5' end of the RNA pregenome. Epsilon contains an apical stem-loop, whose residues are either totally conserved or show rare non-disruptive mutations. Here we present the structure of the apical stem-loop based on NOE, RDC and H-1 chemical shift NMR data. The H-1 chemical
Depletion and structural forces in confined polyelectrolyte solutions
Monte Carlo simulations and density functional calculations have been performed for charged macromolecules confined to planar slits. The force between the confining walls has been evaluated as a function of separation, while keeping the chemical potential of the macromolecules constant. Highly charged spherical particles and flexible polyelectrolyte chains in confinement give rise to depletion and
Attitudes towards the conservation of biological diversity - A case study in Kristianstad Municipality, Sweden
Human actions towards land, freshwater and oceans have already caused biodiversity to decline. This study aims to investigate attitudes towards the conservation of biological biodiversity among different groups in a Swedish city, Kristianstad. An inquiry including statements measuring attitudes towards the conservation of habitats, animals and plants, to the biological diversity within selected lo
Important factors for use of hormone replacement therapy: a population-based study of Swedish women. The Women's Health in Lund Area (WHILA) Study
OBJECTIVE: The aim of this study was to delineate the use of hormone replacement therapy (HRT) among women who were born between December 2, 1935, and December 1, 1945, and living in the Lund area of southern Sweden and to analyze factors that contribute to the acceptance and continuation of HRT. METHODS: All women received a generic questionnaire pertaining to demographic background, lifestyle, h
Covering a set of points with a minimum number of lines
We consider the minimum line covering problem: given a set S of n points in the plane, we want to find the smallest number l of straight lines needed to cover all n points in S. We show that this problem can be solved in O(n log l) time if l is an element of O(log(1-is an element of) n), and that this is optimal in the algebraic computation tree model (we show that the Omega(n log l) lower bound h
Time course of postnatal motor development in ferrets: ontogenetic and comparative perspectives.
We assess relative time courses of motor development in ferrets and rats and evaluate ferrets as experimental animals for studies of motor development. Motor behaviour of ferret pups was characterized in daily sessions from postnatal day (P) 2 to P63. Observations concerning rotational locomotion ('pivoting'), crawling, walking, upright standing ('rearing') and walking on a narrow path; righting o
Comparison of implantation and cytotoxicity testing for initially toxic biomaterials.
Direct heterogeneous electron transfer reactions of fungal laccases at bare and thiol-modified gold electrodes
Mediatorless (direct) electron transfer between bare and thiol-modified gold electrodes and fungal laccases from different sources has been demonstrated. The electrochemical activity of the enzymes from basidiomycetes Trametes hirstita. Trametes ochracea, and Cerrena maxima under aerobic and anaerobic conditions can clearly be observed using cyclic voltammetry and spectroelectrochemistry. Bioelect
Elastase-producing Pseudomonas aeruginosa degrade plasma proteins and extracellular products of human skin and fibroblasts, and inhibit fibroblast growth.
In-situ mineralization of chlorinated phenols by pelagic bacteria in lakes of differing humic content
The microbial mineralization of phenol and three chlorinated phenols (3,4-dichlorophenol, 2,4,5-trichlorophenol and pentachlorophenol) in the water column of 23 pristine, oligotrophic lakes of different humic content was investigated. During short-term (approximately 2 d) in situ incubations of water samples amended with C-14-labeled phenolic compounds, the fraction of the added pollutant minerali
Fermentation of an inhibitory dilute acid-hydrolysate from spruce using a fed-batch procedure combined with cell-reuse
Strong, localised country-rock contamination and partial homogenisation of a mafic magma: An example from west central Sweden
A dolerite sill cutting slightly older basalt in west-central Sweden shows a strong chemical variation (54%
Expression profiling in cancer using cDNA microarrays
Currently there are over 1,000,000 human expressed sequence tag (EST) sequences available on the public database, representing perhaps 50-90% of all human genes. The cDNA microarray technique is a recently developed tool that exploits this wealth of information for the analysis of gene expression. In this method, DNA probes representing cDNA clones are arrayed onto a glass slide and interrogated w
Increased S100B in cerebrospinal fluid of infants with bacterial meningitis: relationship to brain damage and routine cerebrospinal fluid findings
Role of epithelial interleukin-8 (IL-8) and neutrophil IL-8 receptor A in Escherichia coli-induced transuroepithelial neutrophil migration
Escherichia coli stimulates neutrophil migration across human uroepithelial cell layers. This study investigated the role of the neutrophil chemokine interleukin-8 (IL-8) in this process. E. coli and IL-1alpha stimulated urinary tract epithelial layers to secrete IL-8 and induced transepithelial neutrophil migration. Anti-IL-8 antibody reduced neutrophil migration across epithelial cell layers, in
Hemodilution significantly decreases tolerance to isoflurane-induced cardiovascular depression
BACKGROUND: Hemodilution is used to reduce the need for allogenic blood transfusion. The aim of this study was to evaluate to what extent acute extreme normovolemic hemodilution affects the circulatory response to isoflurane. METHODS: Ten midazolam-fentanyl-pancuronium anesthetized pigs were exposed to isoflurane at end-tidal concentrations of 0, 0.5, 1.0, 1.5 and 2%, before and after extreme norm