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New general tools for constrained geometry optimizations

A modification of the constrained geometry optimization method by Anglada and Bofill (Anglada, J. M.; Bofill, J. M. J. Comput. Chem. 1997, 18, 992-1003) is designed and implemented. The changes include the choice of projection, quasi-line-search, and the use of a Rational Function optimization approach rather than a reduced-restricted-quasi-Newton-Raphson method in the optimization step. Furthermo

Reactions and performance of Swedish peacekeepers in life-threatening situations

This study maps reactions activated in peacekeeping personnel by life-threatening situations and explores how these reactions affect psychological functioning. In-depth interviews were carried out with 30 informants from the Swedish peacekeeping force serving in Bosnia between 1993 and 1995. All participants had experienced shooting incidents or other highly threatening events. Two models were for

Bezafibrate-induced anaphylactic shock: unusual clinical presentation

We report a case of a patient who suffered generalized urticaria, chest tightness, wheezing, nausea, vomiting, hypotension, and loss of consciousness. Two hours earlier she had taken Eulitop Retard following lunch. She had tolerated all the implicated food after the reaction. Allergy evaluation revealed intense positive responses to intradermal tests with bezafibrate active component and Eulitop R

Downregulation of adenosine and P2X receptor-mediated cardiovascular responses in heart failure rats

Neurohormonal changes in congestive heart failure (CHF) include an enhanced peripheral sympathetic nerve activity which results in increased release of noradrenaline, neuropeptide Y and ATP. To examine if such changes in CHF would modulate peripheral pre- and postsynaptic receptors of ATP and its degradation product adenosine, experiments were performed in a rat model of ischaemic CHF. In this mod

Leaflet arrest in St Jude Medical and CarboMedics valves: an experimental study

Objective: Two patients who suffered acute failure of their St Jude Medical Masters aortic valve prostheses due to leaflet arrest that were unrelated to suture material are presented. It was hypothesized that the valves failed because force applied to bear upon the valve annulus caused the hinge mechanism to become restricted or to arrest. Methods: A study was designed to measure the force that wo

Pharmacodynamic studies of amoxicillin against Streptococcus pneumoniae: comparison of a new pharmacokinetically enhanced formulation (2000 mg twice daily) with standard dosage regimens

Objectives: To compare the pharmacodynamic effects of a pharmacokinetically enhanced formulation of amoxicillin 2000 mg twice daily, with amoxicillin 875 mg twice daily, 875 mg three times daily and 500 mg three times daily against Streptococcus pneumoniae with different susceptibility to amoxicillin in an in vitro kinetic model. Methods: Strains of S. pneumoniae with amoxicillin MICs of 1, 2, 4 a

Chk1 regulates the S phase checkpoint by coupling the physiological turnover and ionizing radiation-induced accelerated proteolysis of Cdc25A

Chk1 kinase coordinates cell cycle progression and preserves genome integrity. Here, we show that chemical or genetic ablation of human Chk1 triggered supraphysiological accumulation of the S phase-promoting Cdc25A phosphatase, prevented ionizing radiation (IR)-induced degradation of Cdc25A, and caused radioresistant DNA synthesis (RDS). The basal turnover of Cdc25A operating in unperturbed S phas

Nursing and health care in Sweden

Sweden, one of the Nordic countries, has a long history of social justice and equality of access to health care. Nursing plays an important role in this and nursing education is of a high standard. The aim of this paper is to describe Sweden's health system and nursing within it, thereby giving Australian nurses information which may generate an interest in, and provide background for, collaborati

Fibrillogenic oligomers of human cystatin C are formed by propagated domain swapping.

Cystatin C and the prion protein have been shown to form dimers via three-dimensional domain swapping, and this process has also been hypothesized to be involved in amyloidogenesis. Production of oligomers of other amyloidogenic proteins has been reported to precede fibril formation, suggesting oligomers as intermediates in fibrillogenesis. A variant of cystatin C, with a Leu(68)-> Gln substitutio

Improved mixing representation in Emanuel's convection scheme

Recent empirical and modelling studies suggest that mid-tropospheric relative humidity (RH) is an important controlling factor of deep atmospheric convection, which appears to be underestimated in present cumulus parametrizations. This indicates the possible presence of shortcomings in the way that entrainment is represented in such parametrizations. This matter was explored in the European Cloud

Proton transfer at metal sites in proteins studied by quantum mechanical free-energy perturbations

Catalytic metal sites in enzymes frequently have second-sphere carboxylate groups that neutralize the charge of the site and share protons with first-sphere ligands. This gives rise to an ambiguity concerning the position of this proton, which has turned out to be hard to settle with experimental, as well as theoretical, methods. We study three such proton-transfer reactions in two proteins and sh

Frontotemporal dementia linked to chromosome 3

A large pedigree with autosomal dominant frontotemporal dementia has been identified. Positional cloning has linked the disease gene to the pericentromeric region of chromosome 3. Clinical, neuropsychological, imaging, pathological and molecular genetic data are presented. The genetic mutation responsible for the disease has not been identified.

Proposals for New Accounting Standards for Foreign Monetary Items

The purpose of this study was to propose and evaluate different methods for measuring and reporting exchange gains and losses on corporate monetary items. Focusing on the Swedish experience, the empirical validity of three laws/monetary relationships from economic theory were examined for currencies in the Swedish 'basket' for the period 1974–1981. The basic overall finding of the study was that a

Protection of neutralization epitopes in the V3 loop of oligomeric human immunodeficiency virus type I glycoprotein 120 by N-linked oligosaccharides in the V1 region

The V3 region of the human immunodeficiency virus type 1 envelope protein gp120 constitutes a potential neutralization target, but the oligosaccharide of one conserved N-glycosylation site in this region protects it from neutralizing antibodies. Here, we determined whether N-linked glycans of other gp120 domains were also involved in protection of V3 neutralization epitopes. Two molecular clones o

Predicting Long-Term Cognitive Outcome with New Regression Models in Donepezil-Treated Alzheimer Patients in a Naturalistic Setting.

Background/Aims: To build and analyze regression models predicting (1) the long-term cognitive outcome in donepezil-treated patients with Alzheimer's disease, and (2) the short-term (6 months) cognitive impact of treatment depending on cognitive severity at baseline. Methods: The Swedish Alzheimer Treatment Study (SATS) is an open-label, non-randomized, 3-year, multicentre study in a routine clini

Initial Characterization of Ethyl(hydroxyethyl) Cellulose Using Enzymic Degradation and Chromatographic Methods

Two different ethyl(hydroxyethyl) cellulose (EHEC) samples were characterized by size-exclusion chromatography (SEC) with multiangle light scattering (MALS) detection and high-performance anion-exchange chromatography (HPAEC) with pulsed amperometric detection (PAD). The aim of the study was to investigate the molar mass distribution and the heterogeneity of the substituent distribution, factors t

Symmetry of spin transport in two-terminal waveguides with a spin-orbital interaction and magnetic field modulations

We analyze symmetries of spin transport in two-terminal quantum waveguide structures with Rashba spin-orbit coupling and magnetic field modulations. Constraints, imposed by the device structure, on the spin polarization of the transmitted electron beam from the waveguide devices are derived. The results are expected to provide accuracy tests for experimental measurements and numerical calculations

Calpain inhibitors delay injury-induced apoptosis in adult mouse spinal cord motor neurons

Here, we investigated the effect of calpain inhibitors on apoptosis in organotypic adult spinal cord slices from mice. An increase in calpain I immunoreactivity was found in the nuclei of motor neurons from slices cultured for 30 min. After 4 h, the immunopositive motor neurons exhibited apoptotic changes including nuclear and chromatin condensation. Eight hours after excision, most motor neurons