Quantum Heisenberg antiferromagnetic chains with exchange and single--ion anisotropies

Using density matrix renormalization group calculations, ground state properties of the spin-1 Heisenberg chain with exchange and quadratic single-ion anisotropies in an external field are studied, for special choices of the two kinds of anisotropies. In particular, the phase diagram includes antiferromagnetic, spin-liquid (or spin-flop), (10), and supersolid (or biconical) phases. Especially, new features of the spin-liquid and supersolid phases are discussed. Properties of the quantum chains are compared to those of corresponding classical spin chains.Comment: 4 pages, 5 figures, ICM0

Introduction to a Biological Systems Science

Biological systems analysis and biodynamic modelling of physiological and biological interrelationships in human body and mammal

A new approach in modeling the response of RPC detectors

The response of RPC detectors is highly sensitive to environmental variables. A novel approach is presented to model the response of RPC detectors in a variety of experimental conditions. The algorithm, based on Artificial Neural Networks, has been developed and tested on the CMS RPC gas gain monitoring system during commissioning

Argentinian digital health strategy

Digital Health is one of the three pillars for the effective implementation of Universal Health Coverage in Argentina. The Ministry of Health published the National Digital Health Strategy 2018-2024 in order to establish the conceptual guidelines for the design and development of interoperable health information systems as a state policy. The World Health Organization "National eHealth Strategy Toolkit", "Global Strategy on Digital Health" and other international and local evidence and expert recommendations were taken into account. The path to better healthcare involves adopting systems at the point of care, allowing for the primary recording of information and enabling information exchange through real interoperability. In that way, people, technology and processes will synergize to enhance integrated health service networks. In this paper, we describe the plan and the first two years of implementation of the strategy.Fil: Rizzato Lede, Daniel A.. Ministerio de Salud de la Nación; ArgentinaFil: Pedernera, Federico A.. Ministerio de Salud de la Nación; ArgentinaFil: López, Emiliano. Ministerio de Salud de la Nación; ArgentinaFil: Speranza, Cintia D.. Ministerio de Salud de la Nación; ArgentinaFil: Guevel, Carlos Gustavo. Ministerio de Salud de la Nación; ArgentinaFil: Maid, Jesse J.. Ministerio de Salud de la Nación; ArgentinaFil: Mac Culloch, Patricia. Ministerio de Modernización; ArgentinaFil: Rolandi, Florencia. Ministerio de Modernización; ArgentinaFil: Ayala, Fabiana. Ministerio de Modernización; ArgentinaFil: Abadie, Daniel A.. Ministerio de Modernización; ArgentinaFil: Baqué, María I.. Ministerio de Modernización; ArgentinaFil: Gassino, Fernando. Ministerio de Salud de la Nación; Argentina. Hospital Italiano; ArgentinaFil: Campos, Fernando. Hospital Italiano; ArgentinaFil: Kaminker, Diego. No especifíca;Fil: Cejas, Cintia A.. Ministerio de Salud de la Nación; ArgentinaFil: López Osornio, Alejandro. Ministerio de Salud de la Nación; ArgentinaFil: Rubinstein, Adolfo Luis. Ministerio de Salud de la Nación; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Epidemiología y Salud Pública. Instituto de Efectividad Clínica y Sanitaria. Centro de Investigaciones en Epidemiología y Salud Pública; Argentin

Graz. Schloßberg.

Blick zum Schloßberg mit Hauptbrück

Gingival crevicular fluid MMP-8-concentrations in patients after acute myocardial infarction

<p>Abstract</p> <p>Background</p> <p>The aim of this study was to determine the presence of matrix metalloproteinase-8 in the gingival crevicular fluid (GCF) of patients after acute myocardial infarction (AMI).</p> <p>Methods</p> <p>A total of 48 GCF samples from 20 AMI patients, hospitalized at the Department of Cardiology and Angiology of the Johannes Gutenberg University Mainz, were investigated. Besides the myocardial infarction all patients suffered from chronic periodontal disease. Fifty-one GCF samples from 20 healthy age matched individuals with similar periodontal conditions served as controls. The dental examination included the assessment of oral hygiene, gingival inflammation, probing pocket depth, clinical attachment level and X-ray examination. The study was only carried out after the positive consent of the regional ethic commission. A quantitative assessment of aMMP-8 levels in the gingival crevicular fluid was performed with the help of the DentoAnalyzer (Dentognostics GmbH, Jena, Germany), utilising an immunological procedure.</p> <p>Results</p> <p>The aMMP-8 concentrations found in the gingival crevicular fluid of the AMI patients significantly differed (p = 0.001; mean value 30.33 ± 41.99 ng/ml aMMP-8) from the control group (mean value 10.0 ± 10.7 ng/ml aMMP-8). These findings suggest that periodontal inflammation in AMI patients might be associated with higher MMP-8-values compared to the healthy controls.</p> <p>Conclusions</p> <p>The acute myocardial infarction seems to influence the degree of periodontal inflammation, thus the measurement of the gingival crevicular fluid MMP8 levels seems to be a helpful biochemical test to obtain information about the severity of the periodontal disease.</p