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Neck vibration causes short-latency electromyographic activation of lower leg muscles in postural reactions of the standing human.

To study how quickly cervical proprioceptive information induced muscular responses in the lower leg to control posture in the standing human we investigated lower leg muscle electromyography and force-plate data from 10 healthy normal subjects, when perturbed by posterior neck muscle vibration. At the onset of vibration the tibialis anterior muscle was activated at latencies of 70-100 ms whilst t

The diameter of the common femoral artery in healthy human: influence of sex, age, and body size

PURPOSE: To determine the relevance of dilatations of the common femoral artery (CFA), knowledge of the normal CFA diameter is essential. The diameter of the CFA in healthy male and female subjects of different ages was investigated. METHODS: The diameter of the CFA was measured in 122 healthy volunteers (59 male, 63 female; 8 to 81 years of age) with echo-tracking B-mode ultrasound scan. The infl

Strain effects on individual quantum dots: Dependence of cap layer thickness

We have studied the effects of strain on individual self-assembled quantum dots (QDs) exemplified by InP dots embedded in GaInP. The quantum dot sample was etched from the top and in this way the amount of capping material was reduced. In a sequence of etch cycles, the cap layer was thinned, and the photoluminescence from several individual QDs could be followed as a function of cap layer thicknes

Novel peptide surface for reversible immobilization of concanavalin A

Concanavalin A (Con A) was spontaneously adsorbed on polymyxin B surface. This peptide-lectin interaction was strong, K-D = 1-9 X 10(-10), based predominantly on creation of hydrophobic bonds, and was completely reversible. Concanavalin A on polymyxin B (PmB) retained higher binding capacity for yeast mannan, compared with covalently immobilized lectin. Kinetics of mannan-concanavalin A interactio

Planktic cyanobacteria from freshwater localities in ThuaThien-Hue province, Vietnam. II. Algal biomass and microcystin production

A survey of cyanobacteria was carried out from February to August of 2004 along the Huong River and Hoamy Reservoir which supply part of the City of Hue, Vietnam with drinking water: also at some localities in the vicinity of the City of Hue. Quantitative analyses and screening for microcystin by ELISA and HPLC were done both in natural samples and in cultured cyanobacteria. The total biomass of c

X-ray photoelectron diffraction investigation of the cleavage plane in IT-transition metal dichalcogenides

We present a detailed study of the three members of the 1 T-transition metal dichalcogenides: TiSe2, TaSe2 and TaS2 by means of the X-ray photoelectron diffraction combined with single-scattering simulations. Our simulations of different surface terminations and their comparison with the measured diffraction patterns allow to determine that the cleavage occurs within the van der Waals gap. Singles

Cardiac dysfunction in mild primary hyperparathyroidism assessed by radio-nuclide angiography and echocardiography before and after parathyroidectomy

Background.. Primary hyperparathyroidism (PHPT) is associated with increased cardiovascular morbidity for reasons that are incompletely understood. The present study was undertaken to evaluate the effects of parathyroidectomy on cardiac function especially in patients with mild PHPT Methods. Fifty patients with mild PHPT (serum calcium, 2.55 to 2.95 mmol/L) were randomized to parathyroidectomy eit

Harmonic morphisms from the Grassmannians and their non-compact duals

In this paper we give a unified framework for the construction of complex valued harmonic morphisms from the real, complex and quaternionic Grassmannians and their non-compact duals. This gives a positive answer to the corresponding open existence problem in the real and quaternionic cases.

Ljud och inlärning

Foreword to texts by: Innehåll: Sven Strömqvist: Ljud och inlärning, Staffan Hygge: Om ljud och inlärning, Jessica K Ljungberg: Effekter av arbetsplatsens auditiva varningssignaler på kognitiv prestation och subjektiv upplevelse, Magne Sjöström: Anpassning i praktiken för elever med hörselnedsättning - en utvärdering av hinder och möjligheter, Barn i Bullerbyn, Pär Axelsson: Bullret bort!

Long term follow up of chronic hepatitis B virus infection in intravenous drug abusers and homosexual men

Long term follow up of 16 homosexual men and 78 intravenous drug abusers who were chronic carriers of hepatitis B surface antigen (HBsAg) showed fundamental differences between the two groups. Viral replication, expressed by the presence of hepatitis B e antigen, lasted for four years or more in 10 out of 14 (71%) of the homosexual men whereas it was not present in 43 out of 73 (59%) of the drug a

Review of Mårten Björkgren, Drama och dialog. Olov Hartman som homilet under åren som församlingspräst 1932–1948. Åbo 1999

Björkgrens avhandling i praktisk teologi undersöker vad församlingsprästen Hartman ville som predikant och hur han förverkligade detta i sina predikningar. Förf. undersöker Hartmans tänkande, vilka strävanden hans predikningar speglar och deras formal-homiletiska stil. Metoden beskrivs som innehållslig textanalys. Bättre än ”drama” hade ”spänning” passat i huvudrubriken. För första gången har otry

Structure of Thallium(Iii) Chloride, Bromide, and Cyanide Complexes in Aqueous-Solution

The structures of the hydrated thallium(III) halide and pseudohalide complexes, [TlX(n)(OH2)(m)]((3-n)+), X = Cl, Br, CN, in aqueous solution have been studied by a combination of X-ray absorption fine structure spectroscopy (XAFS), large-angle X-ray scattering (LAXS), and vibrational spectroscopic (Raman and IR) techniques including far-infrared studies of aqueous solutions and some solid phases

Persistent organic pollutants (POPs) in pelagic systems

Several studies show that there are interactive processes between eutrophication and uptake of persistent organic pollutants (POPs) in aquatic biota. The main concept is that the increased biomass and production in aquatic ecosystems, due to excess discharge of nutrients, causes a chain event that results in reduced uptake of POPs in primary producers (phytoplankton). This effect is then transferr

Five-year follow-up during antipsychotic treatment: efficacy, safety, functional and social outcome

Objective: Explore the long-term course of schizophrenia and related disorders. Method: Naturalistic study of 225 patients initially treated with risperidone (monotherapy or in combination with other psychotropic drugs) over 5 years. Results: Stable symptomatology and side effects were observed. Clinician GAF scores were 55-61, but patients' self-ratings were higher. Clinician and patient CGI scor

Maternal serum screening for Down syndrome - opinions on acceptance from Swedish women

Background: Different screening procedures are becoming an important part of health care. information about screening and its consequences can be difficult to both impart and understand. This study examined women's theoretical acceptance of a new screening procedure, before its introduction. Methods: A group of women (n = 823), who had made an informed choice about the form of foetal diagnosis the