We study the evolution of a stochastic helical magnetic field generated in the early Universe after the electroweak phase transition, using standard magnetohydrodynamics (MHD). We find how the coherence length ξ, magnetic energy EM and magnetic helicity H evolve with time. We show that the self-similarity of the magnetic power spectrum alone implies that ξ ∼ t1/2. This in turn implies that magn...

We report the discovery of non-thermal pulsed X-ray/soft γ-ray emission up to ∼ 150 keV from the anomalous X-ray pulsar AXP 1E 1841-045 located near the centre of supernova remnant Kes 73 using RXTE PCA and HEXTE data. The morphology of the double-peaked pulse profile changes rapidly with energy from 2 keV up to ∼ 8 keV, above which the pulse shape remains more or less stable. The pulsed spectr...

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Multi-colour (JHKS) imaging and photometry of the field of the Anomalous X-ray Pulsar AXP 1E 1841−045 is analysed in the light of new, accurate coordinates from Chandra (Wachter et al, 2004). From excellent quality images, we find multiple sources in and around the position error circle. Of these, none can be confidently identified as the infrared counterpart. The limiting magnitudes reached we...

BACKGROUND To adequately perform rehabilitation of edentulous patients by a complete removable dental prosthesis (CRDP) is from basic interest to dentists to understand the morphologic changes caused by re-establishment of a physiologic jaw relationship. Anthropometric analyses of standardized frontal view and profile photographs may help elucidate such changes. MATERIAL AND METHODS Photograp...

UNLABELLED Theme: Child protection and managing risk. INTRODUCTION On child abuse the protection of children requires cooperation between health and education professionals. OBJECTIVES To relate the sociodemographic and training context variables with the perception of teachers about child abuse. METHODS A descriptive-correlational and cross-sectional study. A sample of 172 teachers of th...

INTRODUCTION This study was designed to compare an antidepressant medication, citalopram, with psychological training in hemodialysis patients with symptoms of anxiety and depression. MATERIALS AND METHODS A total number of 44 hemodialysis patients scored 8 and more on the Hospital Anxiety and Depression Scale (HADS) were randomly allocated to two groups to receive citalopram, 20 mg/d, for 3 ...

BACKGROUND The relevance that adherence to treatment plays in liver transplantation, and the impact this factor may have on the success of treatment, are fundamental in assessing the variables which affect patient adherence during the pretransplantation period. OBJECTIVES This study aims to determine factors that affect liver transplant candidates' adherence to treatment, and analyze the asso...