862 research outputs found
The effect of cognitive impairment on the predictive value of multimorbidity for the increase in disability in the oldest old: the Leiden 85-plus Study
Background: prevention of disability is an important aim of healthcare for older persons. Selection of persons at risk is a first crucial step in this process
Hydrologic and Water Quality Monitoring on Turkey Creek Watershed, Francis Marion National Forest, SC
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Regio
Harvesting the wisdom of the crowd: using online ratings to explore care experiences in regions.
Regional population health management (PHM) initiatives need an understanding of regional patient experiences to improve their services. Websites that gather patient ratings have become common and could be a helpful tool in this effort. Therefore, this study explores whether unsolicited online ratings can provide insight into (differences in) patient's experiences at a (regional) population level
ARS leptogenesis
We review the current status of the leptogenesis scenario originally proposed by Akhmedov, Rubakov and Smirnov (ARS). It takes place in the parametric regime where the right-handed neutrinos are at the electroweak scale or below and the CP-violating effects are induced by the coherent superposition of different right-handed mass eigenstates. Two main theoretical approaches to derive quantum kinetic equations, the Hamiltonian time evolution as well as the Closed-Time-Path technique are presented, and we discuss their relations. For scenarios with two right-handed neutrinos, we chart the viable parameter space. Both, a Bayesian analysis, that determines the most likely configurations for viable leptogenesis given different variants of flat priors, and a determination of the maximally allowed mixing between the light, mostly left-handed, and heavy, mostly right-handed, neutrino states are discussed. Rephasing invariants are shown to be a useful tool to classify and to understand various distinct contributions to ARS leptogenesis that can dominate in different parametric regimes. While these analyses are carried out for the parametric regime where initial asymmetries are generated predominantly from lepton-number conserving, but flavor violating effects, we also review the contributions from lepton-number violating operators and identify the regions of parameter space where these are relevant.Fil: Drewes, Alejandro Marcelo. Technische Universitat München; AlemaniaFil: Garbrecht, B.. Technische Universitat München; AlemaniaFil: Hernández, P.. Universidad de Valencia; España. Cern - European Organization For Nuclear Research; Suiza. Université Catholique de Louvain. Particle Physics and Phenomenology. Centre for Cosmology; SuizaFil: Kekic, M.. Universidad de Valencia; EspañaFil: Lopez-Pavon, J.. Cern - European Organization For Nuclear Research; SuizaFil: Racker, Juan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Rius, Natalia. Universidad de Valencia; EspañaFil: Salvado, J.. Universidad de Valencia; EspañaFil: Teresi, D.. Université Libre de Bruxelles; Bélgic
Probing leptogenesis
The focus of this paper lies on the possible experimental tests of leptogenesis scenarios. We consider both leptogenesis generated from oscillations, as well as leptogenesis from out-of-equilibrium decays. As the Akhmedov-Rubakov-Smirnov (ARS) mechanism allows for heavy neutrinos in the GeV range, this opens up a plethora of possible experimental tests, e.g. at neutrino oscillation experiments, neutrinoless double beta decay, and direct searches for neutral heavy leptons at future facilities. In contrast, testing leptogenesis from out-of-equilibrium decays is a quite difficult task. We comment on the necessary conditions for having successful leptogenesis at the TeV-scale. We further discuss possible realizations and their model specific testability in extended seesaw models, models with extended gauge sectors, and supersymmetric leptogenesis. Not being able to test high-scale leptogenesis directly, we present a way to falsify such scenarios by focusing on their washout processes. This is discussed specifically for the left-right symmetric model and the observation of a heavy WR, as well as model independently when measuring L = 2 washout processes at the LHC or neutrinoless double beta decay.Fil: Chun, E. J.. Korea Institute For Advanced Study; Corea del SurFil: Cvetic, G.. Universidad Técnica Federico Santa María; ChileFil: Dev, P. S. B.. Washington University in St. Louis; Estados UnidosFil: Drewes, Alejandro Marcelo. Technische Universitat München; Alemania. Université Catholique de Louvain; BélgicaFil: Fong, C. S.. Universidade de Sao Paulo; BrasilFil: Garbrecht, B.. Technische Universitat München; AlemaniaFil: Hambye, T.. Université Libre de Bruxelles; BélgicaFil: Harz, J.. Institut Lagrange de Paris, Sorbonne Universitès; Francia. Centre National de la Recherche Scientifique; FranciaFil: Hernández, P.. Cern - European Organization For Nuclear Research; Suiza. Universidad de Valencia; EspañaFil: Kim, C. S.. Department Of Physics And Ipap, Yonsei University; Corea del SurFil: Molinaro, E.. University Of Southern Denmark; DinamarcaFil: Nardi, E.. Laboratori Nazionali Di Frascati; ItaliaFil: Racker, Juan Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Rius, N.. Universidad de Valencia; EspañaFil: Zamora-Saa, J.. Joint Institute For Nuclear Research; Rusi
Magnetic phase evolution in the spinel compounds ZnCoCrO
We present the magnetic properties of complete solid solutions of
ZnCrO and CoCrO: two well-studied oxide spinels with very
different magnetic ground states. ZnCrO, with non-magnetic
cations occupying the A site and magnetic cations on the B site, is a
highly frustrated antiferromagnet. CoCrO, with magnetic cations
(three unpaired electrons) on the A site as well, exhibits both N\'eel
ferrimagnetism as well as commensurate and incommensurate non-collinear
magnetic order. More recently, CoCrO has been studied extensively for
its polar behavior which arises from conical magnetic ordering. Gradually
introducing magnetism on the A site of ZnCrO results in a transition
from frustrated antiferromagnetism to glassy magnetism at low concentrations of
Co, and eventually to ferrimagnetic and conical ground states at higher
concentrations. Real-space Monte-Carlo simulations of the magnetic
susceptibility suggest that the first magnetic ordering transition and features
of the susceptibility across are captured by near-neighbor self- and
cross-couplings between the magnetic A and B atoms. We present as a part of
this study, a method for displaying the temperature dependence of magnetic
susceptibility in a manner which helps distinguish between compounds possessing
purely antiferromagnetic interactions from compounds where other kinds of
ordering are present.Comment: 10 pages, 5 figures, 1 tabl
High-quality chronic care delivery improves experiences of chronically ill patients receiving care
__Abstract__
Objective. Investigate whether high-quality chronic care delivery improved the experiences of patients.
Design. This study had a longitudinal design.
Setting and Participants. We surveyed professionals and patients in 17 disease management programs targeting patients with cardiovascular
diseases, chronic obstructive pulmonary disease, heart failure, stroke, comorbidity and eatin
- …