Search results

Filter

Filetype

Your search for "*" yielded 533149 hits

Antigen-binding sites dominate the surface properties of antibodies

We have found a remarkable relationship between the specificity of antibodies and their chromatographic behavious upon liquid-liquid partition chromatography (LLPC). Well characterized human and murine monoclonal antibodies and Fab/Fv fragments thereof as well as mouse/human chimeric antibodies were employed. While, lgG 1, 2 and 4 antibodies with identical specificities (affinity constants) have i

Biological treatment of industrial wastes in a photobioreactor

An algal-bacterial consortium was tested for the treatment from a coke factory. A Chlorella vulgaris strain and a phenol-degrading Alcaligenes sp. were first isolated from the wastewater treatment plant to serve as inocula in the subsequent biodegradation tests. Batch tests were then conducted with samples from the real wastewater or using a synthetic wastewater containing 325 mg phenol/l and 500

First measurement of charged current cross sections at HERA with longitudinally polarised positrons

Data taken with positrons of different longitudinal polarisation states in collision with unpolarised protons at HERA are used to measure the total cross sections of the charged current process, e(+) p -> nu X, for negative four-momentum transfer squared Q(2) > 400 GeV2 and inelasticity gamma < 0.9. Together with the corresponding cross section obtained from the previously published unpolarised da

The stable pyrimidines UDPbetaS and UTPgammaS discriminate between the P2 receptors that mediate vascular contraction and relaxation of the rat mesenteric artery

The contractile and relaxant effects of the different P2 receptors were characterized in the rat isolated mesenteric artery by use of extracellular nucleotides, including the stable pyrimidines uridine 5'-O-thiodiphosphate (UDPbetaS) and uridine 5'-O-3-thiotriphosphate (UTPgammaS). The selective P2X receptor agonist, alphabeta-methylene-adenosine triphosphate (alphabeta-MeATP) stimulated a potent

Hydrogen exchange and hydration dynamics in gelatin gels

Gelatin, derived from the collagen triple helix, is the most widely used functional biopolymer and a prototype for studies of physical gels. Gelatin gels have also served as models for soft biological tissue in efforts to elucidate the molecular basis of the magnetic relaxation phenomena that govern magnetic resonance image contrast. Yet, the microstructure, hydration, and magnetic relaxation beha

Endovascular repair of descending thoracic aortic aneurysms: an early experience with intermediate-term follow-up

PURPOSE: The purpose of this study was to report an initial experience with the endovascular repair of descending thoracic aortic aneurysm. Complications and intermediate-term morphologic changes were identified with the intent of altering patient selection and device design. METHODS: Endografts were placed into 25 patients at high-risk for conventional surgical repair over a 3(1/2)-year period. D

No title

Abstract in Danish Benign paroksysmal positionel vertigo viser sig ved kraftige rotatoriske svimmelhedsanfald, når patienten bevæger sit hoved i bestemte stillinger. Tilstanden er, som navnet udsiger, benign, men medfører oftest væsentlig morbiditet. Fritflydende otolitter (ørekrystaller) antages at sedimentere i buegangene ved hovedbevægelser. Herved påvirkes cupula hydrodynamisk og dette medføreBenign paroxysmal positional vertigo presents with brief, episodic, positioning-provoked vertigo and characteristic findings on Dix-Hallpike and other positional tests. This article is based on a systematic review of the literature and describes epidemiology, etiology, pathogenesis, diagnostic positional tests and treatment using canalith repositioning, liberatory and 360 degrees rotation manoeuvr

Physical workload during manual and mechanical deboning of poultry

The physical workload after the introduction of new technology, i.e. mechanical versus manual deboning of poultry was studied with respect to force requirements, work postures and repetitive movements of the hand. Thirteen healthy women were studied during manual and mechanical deboning using electromyography (EMG), force recordings, observer based force ratings and electrogoniometers. The muscula

Hexafluorophosphates of chlorotris(dimethyl sulfide)platinum(II) and bromotris (dimethyl sulfide)platinum(II)

The title compounds, chloro­tris­(di­methyl sulfide-kappaS)platinum(II) hexa­fluoro­phosphate, [PtCl(C2H6S)3]PF6, and bromotris­(di­methyl sulfide-kappaS)­platinum(II) hexa­fluoro­phos­phate, [PtBr(C2H6S)3]PF6, are isomorphous and are composed of [PtX(dms)3]+ complex cations (X = Cl and Br, and dms is di­methyl sulfide) and PF6- anions. The Pt atom is coordinated by three S atoms and one X atom in

Indicators of bone formation in weight lifters

Physical activity has been suggested to be one of the determinants of bone turnover and to prevent age-related bone loss. To examine this we measured the serum levels of osteocalcin (bone Gla-protein, BGP), C-terminal procollagen peptide (PICP), serum alkaline phosphatase, bone-specific alkaline phosphatase, and S-calcium as indices of bone formation in 19 actively performing and 15 ex-lifters. Al

Doppler velocimetry for predicting fetal death in a twin pregnancy.

Diagnosis of discordant twins is easily accomplished with modern ultrasound equipment, though diagnosing twin-to-twin transfusion syndrome (TTS) at an early stage might be a problem. The possibility of excluding TTS by Doppler ultrasound is demonstrated in a case with early severe growth restriction of one fetus. Characteristic blood velocity changes in a dying fetus are also illustrated. The Dop

Improving Software Quality through Understanding and Early Estimations

Software quality is an important factor of a large and complex software system. Hence, there is a need for measuring and controlling quality. Software quality has, however, many different f actors and involves implicit expectations of the behaviour of the software. This thesis investigates two aspects of improving the software quality, in particular the reliability factor. The first part of this

Moisture permeability of mature concrete and cement paste

Moisture permeabilities (δv) of mature concrete and cement paste with water-cement ratio (w0/C) 0.4, 0.5 and 0.6 have been determined as functions of the relative humidity (RH). These δv can be used to calculate δv of the aggregates including the interfacial transition zone (ITZ). δv of granite has been preliminarily determined as a function of RH.

A study of the quantitative relationship between permeability and pore size distribution of hardened cement pastes

The fluid flow through hardened cement paste was theoretically analyzed by introducing the conception of long-range force and the quantitative relationship between permeability and pore size distribution was derived based on the model of intercepting cylindrical pores and the model of parallel porous bodies. Thirteen sets of data of various hardened cement pastes reported by other researchers were

Can patients at elevated risk of stroke treated with anticoagulants be further risk stratified?

Background and Purpose - Patients with atrial fibrillation have a varied risk of stroke, depending on age and comorbid conditions. The objective of this study was to assess the predictive value of stroke risk classification schemes and to identify patients with atrial fibrillation who are at substantial risk of stroke despite optimal anticoagulant therapy. Methods - Seven recognized classification