Search results
Filter
Filetype
Your search for "*" yielded 526804 hits
HCV-RNA levels increase during pregnancy in women with chronic hepatitis C
Alanine aminotransferase (ALT) levels decline during pregnancy in women chronically infected with hepatitis C virus (HCV). In order to understand further the underlying mechanisms, we prospectively followed 10 chronically infected women before, during and after pregnancy. ALT levels were analysed together with quantification of serum HCV-RNA using the branched DNA technology. As anticipated, the A
Misuse of terminology to imply that 1,25-dihydroxy-vitamin D is a nutrient: There is no evidence for an association between vitamin D and allergy - Reply
Review of Sonja Franeta. Rozovye Flamingo: 10 Sibirskikh interv’iu.
A critiqual inquiry of Sonja Franeta's book.
A new look at the pulsating DB white dwarf GD 358: Line-of-sight velocity measurements and constraints on model atmospheres
We report on our findings of the bright, pulsating, helium atmospherewhite dwarf GD 358, based on time-resolved optical spectrophotometry. Weidentify 5 real pulsation modes and at least 6 combination modes atfrequencies consistent with those found in previous observations. Themeasured Doppler shifts from our spectra show variations with amplitudesof up to 5.5 km s-1 at the frequencies inferred fro
Banalitet som frälsning
Essä om maskulinitet och amerikansk film under 1980- och 1990-talen med Keanu Reeves stjärnimage som exempel.
Isolation and characterization of solventogenic, cellulase-free xylanolytic Clostridia from cow rumen
Hemicellulolytic obligate anaerobes capable of converting a range of agricultural substrates and monomeric sugars of hemicellulose to solvents and acids were isolated from cow rumen fluid. The strains were identified as 5 strains of C. beijerinckii (3 different genotypes), 3 strains of C. acetobutylicum (2 different genotypes), 1 strain of C. butyricum and 3 strains of C. bifermentans (2 different
Studies on the interaction between vitamin K-dependent protein S and complement regulator C4b-binding protein: localization of binding sites and identification of a possible function of the complex.
Complement is a cascade-like system that is part of the innate immune defence. It is an explosive system, potentially harmful also for the host cells, and needs to be strictly regulated. An important down-regulator of complement is C4b-binding protein (C4BP). C4BP contains two different types of subunits, seven identical a-chains and one unique P-chain. The alpha-chains bind to C4b, C4BP's target
Extracellular nucleotides ATP and UTP induce a marked acute release of tissue-type plasminogen activator in vivo in man
Extracellular nucleotides such as ATP and UTP are released by activation of platelets and ischemic tissue injury. The aim of the present study was to investigate whether ATP and UTP can induce acute tPA release from the vascular endothelium in vivo. Nine healthy subjects were studied in a perfused-forearm model during stepwise intraarterial infusions of ATP and UTP (10-200 nmol/min), and UTP durin
The influence of membrane potential on chloride channels activated by GABA in rat cultured hippocampal neurons
Chloride currents were activated by a low concentration of GABA (0.5 microM) in neonatal rat hippocampal neurons cultured for up to 14 days. Currents elicited by 0.5 microM GABA in neurons, voltage-clamped using the whole-cell technique with pipettes containing 149 mM Cl-, reversed close to 0 mV whether pipettes contained 144 mM Na+ or 140 mM Cs+, and were blocked by 100 microM bicuculline. Curren
The insertion/deletion variation in the alpha2B-adrenoceptor does not seem to modify the risk for acute myocardial infarction, but may modify the risk for hypertension in sib-pairs from families with type 2 diabetes
BACKGROUND: An insertion/deletion polymorphism in the alpha2B-adrenoceptor (AR) has been associated with the risk for acute myocardial infarction (AMI) and sudden cardiac death. In this study we tested whether this polymorphism is associated with the risk for AMI among members of families with type 2 diabetes. METHODS: 154 subjects with a history of AMI were matched for age and sex with one of the
Using resultants for SAGBI basis verification in the univariate polynomial ring
A resultant-type identity for univariate polynomials is proved and used to characterise SAGBI bases of subalgebras generated by two polynomials. A new equivalent condition, expressed in terms of the degree of a field extension, for a pair of univariate polynomials to form a SAGBI basis is derived.
Adaptive Control of Extremum Systems
Human sputum cathepsin B degrades proteoglycan, is inhibited by a2-macroglobulin and modulated by neutrophil elastase cleavage of cathepsin B precursor and cystatin C
The high-Mr alkali-stable form of cathepsin B was purified from purulent human sputum. It was shown to solubilize proteoglycan monomer entrapped in polyacrylamide at a rate comparable with that of human lysosomal cathepsin B. Like the enzyme from lysosomes, sputum cathepsin B was bound by human alpha 2-macroglobulin, which inhibited its action on proteoglycan. Cystatin C in purulent sputum was sho
Coherent transport through an interacting double quantum dot: Beyond sequential tunneling
Various causes for negative differential conductance in transport through an interacting double quantum dot are investigated. Particular focus is given to the interplay between the renormalization of the energy levels due to the coupling to the leads and the decoherence of the states. The calculations are performed within a basis of many-particle eigenstates and we consider the dynamics given by t
A dynamic view on the diameter of abdominal aortic aneurysms
OBJECTIVES: To study 40-55 mm aneurysms and calculate their size in relation to the individual predicted normal aortic diameter to see if this might add anything in the evaluation of treatment. MATERIAL AND METHODS: The anteroposterior diameter of 40-55 mm AAAs was measured with an echo-tracking ultrasonic technique in 147 consecutive patients. The weight and height were registered and body surfac
"NeuroStem Chip": a novel highly specialized tool to study neural differentiation pathways in human stem cells.
BACKGROUND: Human stem cells are viewed as a possible source of neurons for a cell-based therapy of neurodegenerative disorders, such as Parkinson's disease. Several protocols that generate different types of neurons from human stem cells (hSCs) have been developed. Nevertheless, the cellular mechanisms that underlie the development of neurons in vitro as they are subjected to the specific differe
Aspects of Hadron Production in High-Energy Heavy-Ion Physics
High-energy heavy-ion collisions provide a unique tool for the study of nuclear matter as a function of temperature and density. WA98 at the CERN SPS recorded data with a 158 A GeV Pb beam on a Pb target in 1996. To cope with the high charged-particle density, a tracking system based on high granularity multi-step avalanche detectors was developed. The results from the first measurement of Delta++
PITX genes are required for cell survival and Lhx3 activation.
The PITX family of transcription factors regulate the development of many organs. Pitx1 mutants have a mild pituitary phenotype, but Pitx2 is necessary for the development of Rathke's pouch, expression of essential transcription factors in gonadotropes, and expansion of the Pit1 lineage. We report that lack of Pitx2 causes the pouch to undergo excessive cell death, resulting in severe pituitary hy
Pestens gåta : farsoter i det tidiga 1700-talets Skåne
Popular Abstract in Swedish Vilka egenskaper var det som gjorde just pesten så fruktad av alla sjukdomar? Hur skiljde den sig från andra samtidigt grasserande farsoter? Hur spreds den? Och hur passade den in i dåtidens samhälle socialt och kulturellt? Det är några av de frågor som denna undersökning med fokus på Skåne 1710 - 1713 vill besvara. Mycket är fortfarande oklart om hur pesten uppträdde This study deals with Sweden’s last outbreak of the plague with focus on Skåne, where the epidemic raged for three years - from late autumn 1710 to late autumn 1713. This was a time of war, crop failures as well as other simultaneously occurring epidemics. The outline of this study can be summarised with the following points: This is the first regional analysis of plague in Skåne. All preserved b