130 research outputs found
Modified classification of surgical meshes for hernia repair based on the analyses of 1,000 explanted meshes
SU(2) symmetry in a Hubbard model with spin-orbit coupling
We study the underlying symmetry in a spin-orbit coupled tight-binding model
with Hubbard interaction. It is shown that, in the absence of the on-site
interaction, the system possesses the SU(2) symmetry arising from the
timereversal symmetry. The influence of the on-site interaction on the symmetry
depends on the topology of the networks: The SU(2) symmetry is shown to be the
spin rotation symmetry of a simply-connected lattice, so it still holds in the
presence of the Hubbard correlation. In contrary, the on-site interaction
breaks the SU(2) symmetry of a multi-connected lattice.Comment: 5 pages, 2 figure
European emissions of the powerful greenhouse gases hydrofluorocarbons inferred from atmospheric measurements and their comparison with annual national reports to UNFCCC
Hydrofluorocarbons are powerful greenhouse gases developed by industry after the phase-out of the
ozone depleting chlorofluorocarbons and hydrochlorofluorocarbons required by the Montreal Protocol.
The climate benefit of reducing the emissions of hydrofluorocarbons has been widely recognised, leading
to an amendment of the Montreal Protocol (Kigali Amendment) calling for developed countries to start
to phase-down hydrofluorocarbons by 2019 and in developing countries to follow with a freeze between
2024 and 2028. In this way, nearly half a degree Celsius of warming would be avoided by the end of the
century. Hydrofluorocarbons are also included in the basket of gases controlled under the Kyoto Protocol
of the United Nations Framework Convention on Climate Change. Annex I parties to the Convention
submit annual national greenhouse gas inventories based on a bottom-up approach, which relies on
declared anthropogenic activities. Top-down methodologies, based on atmospheric measurements and
modelling, can be used in support to the inventory compilation. In this study we used atmospheric data
from four European sites combined with the FLEXPART dispersion model and a Bayesian inversion
method, in order to derive emissions of nine individual hydrofluorocarbons from the whole European
Geographic Domain and from twelve regions within it, then comparing our results with the annual
emissions that the European countries submit every year to the United Nations Framework Convention
on Climate Change, as well as with the bottom-up Emissions Database for Global Atmospheric Research.
We found several discrepancies when considering the specific compounds and on the country level.
However, an overall agreement is found when comparing European aggregated data, which between
2008 and 2014 are on average 84.2 ± 28.0 Tg-CO2-eqyr1 reported by UNFCCC in the same period. Therefore, in agreement with other studies, the gap on the global level
between bottom-up estimates of Annex I countries and total global top-down emissions should be
essentially due to emissions from non-reporting countries (non-Annex I)
A randomised, multi-centre, prospective, observer and patient blind study to evaluate a non-absorbable polypropylene mesh vs. a partly absorbable mesh in incisional hernia repair
Prenatal exposures and exposomics of asthma
This review examines the causal investigation of preclinical development of childhood asthma using exposomic tools. We examine the current state of knowledge regarding early-life exposure to non-biogenic indoor air pollution and the developmental modulation of the immune system. We examine how metabolomics technologies could aid not only in the biomarker identification of a particular asthma phenotype, but also the mechanisms underlying the immunopathologic process. Within such a framework, we propose alternate components of exposomic investigation of asthma in which, the exposome represents a reiterative investigative process of targeted biomarker identification, validation through computational systems biology and physical sampling of environmental medi
Der Einsatz von technisch-assistiven Systemen zur Frühmobilisation von Intensivpatient_Innen: ein Scoping Review
Die Mobilisation von Intensivpatient_Innen wird aufgrund von verschiedenen Faktoren oft sehr spätdurchgeführt. Studien zeigen aber, dass sie, insbesondere wenn sie früh beginnt, einen positiven Effekt auf Heilungsprozess und Rehabilitation von Schwerstkranken haben kann [2]. Robotische Systeme können dabei helfen, die Frühmobilisation im Intensivstationsalltag realisierbarer zu machen. Dieses Scoping Review gibt einen Überblick über bisherige Forschungsaktivitäten zur robotischen Frühmobilisation von Intensivpatient_Innen. Folgende Fragestellungen lagen zugrunde: Wie wird Frühmobilisation mittels robotischem System auf Intensivstationen durchgeführt? Welchen Effekt hat die Frühmobilisation mittels robotischem System auf das Patient_Innenoutcome
Frühmobilisation von Intensivpatient_Innen mit Hilfe von robotischen Systemen - ein Scoping Review
Hintergrund:
Die Mobilisation von Intensivpatient_Innen wird aufgrund von verschiedenen Faktoren oft sehr spät durchgeführt [1]. Studien zeigen aber, dass sie, insbesondere wenn sie früh beginnt, einen positiven Effekt auf Heilungsprozess und Rehabilitation von Schwerstkranken haben kann [2]. Robotische Systeme können dabei helfen, die Frühmobilisation im Intensivstationsalltag realisierbarer zu machen.
Fragestellung und Zielsetzung:
Dieses Scoping Review gibt einen Überblick über bisherige Forschungsaktivität zur robotischen Frühmobilisation von Intensivpatient_Innen. Folgende Fragestellungen lagen zugrunde: Wie wird Frühmobilisation mittels robotischem System auf Intensivstationen durchgeführt? Welchen Effekt hat die Frühmobilisation mittels robotischem System auf das Patient_Innenoutcome
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