Search results

Filter

Filetype

Your search for "*" yielded 528298 hits

Methodologic support in habilitation and rehabilitation: communicative action between practice and science

This study evaluated the early phase of development of a model for quality improvement of habilitation and rehabilitation project processes. The focus of the methodologic support in habilitation and rehabilitation model was on cooperation between practice contexts and science. Habermas' theory about communicative action was a theoretical frame of reference. Three project coordinators and ten proje

Du hittar mig mellan raderna : Nizar Qabbani och kvinnan

Nizar Qabbani (1923-1998) är en av den moderna arabiska poesins främsta förnyare. Han är för närvarande både den mest läste och den mest kontroversielle, den mest älskade och den mest hatade av samtidens poeter i Arabvärlden.

Genetic intratumour heterogeneity in high-grade brain tumours is associated with telomere-dependent mitotic instability.

Glioblastoma multiforme (GBM) and other high-grade brain tumours are typically characterized by complex chromosome abnormalities and extensive intratumour cytogenetic heterogeneity. The mechanisms behind this diversity have been little explored. In this study, we analysed the pattern of chromosome segregation at mitosis in 20 brain tumours. We found an abnormal segregation of chromatids at mitosis

Partitioning in Aqueous Polymer 2-phase Systems .1. Modeling of Affinity Partition

Various factors influencing affinity partitioning in aqueous polymer two-phase systems are studied by model calculations using a self-consistent mean-field lattice theory. The latter is an extension of the theory of Scheutjens and Fleer, adapted to take affinity ligand binding into account. The dependence of partition coefficients on ligand concentration is studied for different binding strengths,

Friction Generated Limit Cycles

This paper treats limit cycles caused by friction. The goal has been to explain phenomena that have been observed experimentally in mechatronic systems. Experiments have shown that oscillations of qualitatively different types can be obtained simply by changing controller specifications. Stiction is important in some cases but not in others. Necessary conditions for limit cycle are given for the c

Impact of electron beam quality on nonlinear harmonic generation in high-gain free-electron lasers

Nonlinear harmonic generation can be a very useful and important phenomenon for single-pass free-electron lasers (FELs) operating in the high-gain regime. Strong bunching at the fundamental wavelength and its associated higher harmonic content allow significant radiation at shorter wavelengths to be emitted without serious effects upon the output power at the fundamental. Here, we analyze the rela

Isomerisation of omega-hydroxyalkenes under hydroxycarbonylation conditions in palladium catalysed aqueous phase systems

The omega-hydroxyolefins 3-buten-1-ol, 3-buten-1-methyl-1-ol and 4-penten-1-ol were subjected to hydroxycarbonylation conditions in water in the presence of PdCL2(PhCN)(2) and 4-8 equiv. of water soluble tris(3-sodiumsulfonatophenyl)phosphine (TPPTS), or N-bis(N',N'-diethyl-2-aminoethyl)-4-aminomethylphenyl-diphenylphosphine (N3P). Under conditions of high conversion, the olefins primarily undergo

Excited States of the Proton Emitter 105Sb

Excited states in the proton emitter Sb-105 have been investigated for the first time. The nucleus was populated in the reaction Cr-50(Ni-58,1p2n). The GAMMASPHERE Ge-detector array was used together with Microball and the Neutron Shell for selection of the reaction channel. The experimental level scheme agrees well with results of a shell model calculation that uses realistic effective interactio

Free nanoscale sodium clusters studied by core-level photoelectron spectroscopy

Free sodium metal clusters have been studied by probing the Na 2p core level using x-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). The development of electronic structure with size has been studied and discussed in comparison with the atom, dimer, and solid. Information on cluster metallic properties, size, and temperature has been deduced from the XPS measurements. F

Antibody to a hepatitis C virus related protein among patients at high risk for hepatitis B

Anti-HCV prevalence in treated hemophiliacs, their heterosexual partners, intravenous drug addicts and homosexual men was studied. In hemophiliacs and many of the intravenous drug addicts, greater than or equal to 2 sera drawn 1-18 or 1-17 years apart were available. Anti-HCV testing was performed by ELISA (Ortho). Among patients with severe and moderate hemophilia A, 87% (98/112) were positive fo

Stock Rationing in a Continuous Review Two-Echelon Inventory Model

In this paper we consider a 1-warehouse, N-retailer inventory system where demand occurs at all locations. We introduce an inventory model which allows us to set different service levels for retailers and direct customer demand at the warehouse. For each retailer a critical level is defined, such that a retailer replenishment order is delivered from warehouse stock if and only if the stock level e

Peptide fusion tags with tryptophan and charged residues for control of protein partitioning in PEG-potassium phosphate aqueous two-phase systems

A partition study with peptides and recombinant proteins in poly(ethylene glycol)4000-potassium phosphate aqueous two-phase systems has been performed. The aim was to study to what extent the insertion of charged residues could affect protein partition in addition to the already observed effects of tryptophan residues. The model proteins used are based on a staphylococcal protein A derivative, Z,

An open and shut case

A powerful new NMR technique applied to the ubiquitous Ca2+ sensor, calmodulin, reveals significant conformational flexibility within each globular domain, which contributes to its ability to bind a wide range of targets. These measurements of residual dipolar couplings between nuclear spins demonstrate a fast and accurate method for pinpointing structural features that cannot be delineated reliab