Equation-of-state-independent relations in neutron stars

Neutron stars are extremely relativistic objects which abound in our universe and yet are poorly understood, due to the high uncertainty on how matter behaves in the extreme conditions which prevail in the stellar core. It has recently been pointed out that the moment of inertia I, the Love number lambda and the spin-induced quadrupole moment Q of an isolated neutron star, are related through functions which are practically independent of the equation of state. These surprising universal I-lambda-Q relations pave the way for a better understanding of neutron stars, most notably via gravitational-wave emission. Gravitational-wave observations will probe highly-dynamical binaries and it is important to understand whether the universality of the I-lambda-Q relations survives strong-field and finite-size effects. We apply a Post-Newtonian-Affine approach to model tidal deformations in compact binaries and show that the I-lambda relation depends on the inspiral frequency, but is insensitive to the equation of state. We provide a fit for the universal relation, which is valid up to a gravitational wave frequency of ~900 Hz and accurate to within a few percent. Our results strengthen the universality of I-lambda-Q relations, and are relevant for gravitational-wave observations with advanced ground-based interferometers. We also discuss the possibility of using the Love-compactness relation to measure the neutron-star radius with an uncertainty of about 10% or smaller from gravitational-wave observations.Comment: 5 pages, 2 figures, 2 table

Probing Planckian corrections at the horizon scale with LISA binaries

Several quantum-gravity models of compact objects predict microscopic or even Planckian corrections at the horizon scale. We explore the possibility of measuring two model-independent, smoking-gun effects of these corrections in the gravitational waveform of a compact binary, namely the absence of tidal heating and the presence of tidal deformability. For events detectable by the future space-based interferometer LISA, we show that the effect of tidal heating dominates and allows one to constrain putative corrections down to the Planck scale. The measurement of the tidal Love numbers with LISA is more challenging but, in optimistic scenarios, it allows to constrain the compactness of a supermassive exotic compact object down to the Planck scale. Our analysis suggests that highly-spinning, supermassive binaries at 1-20 Gpc provide unparalleled tests of quantum-gravity effects at the horizon scale.Comment: v4: matches version in Phys. Rev. Lett; Editors' Suggestio

From micro to macro and back: probing near-horizon quantum structures with gravitational waves

Supermassive binaries detectable by the future space gravitational-wave interferometer LISA might allow to distinguish black holes from ultracompact horizonless objects, even when the latter are motivated by quantum-gravity considerations. We show that a measurement of very small tidal Love numbers at the level of $10\%$ accuracy (as achievable with "golden binaries") may also allow to distinguish between different models of these exotic compact objects, even when taking into account an intrinsic uncertainty in the object radius putatively due to quantum mechanics. We argue that there is no conceptual obstacle in performing these measurements, the main challenge remains the detectability of small tidal effects and an accurate waveform modelling. Our analysis uses only coordinate-independent quantities related to the proper radial distance and the total mass of the object.Comment: Minor changes to match the version published on CQ

La liberté sexuelle de nos aînés en EMS: droit à l'amour, la tendresse et l'intimité : travail de Bachelor

Notre revue de la littérature aborde le sujet de la sexualité des personnes âgées en EMS. Dans notre société actuelle, ce thème est souvent considéré comme compliqué et est un problème à résoudre pour les professionnels de santé. Stéréotypes, éducation répressive, tabou, baisse des capacités de l’activité sexuelle, manque d’espaces privés, règles institutionnelles, manque de partenaire, interférence familiale, manque de connaissances et de communications sur la sexualité des personnes âgées et attitudes restrictives envers les comportements sexuels, toutes ces composantes sont des barrières à la liberté d’expression ainsi qu’à la satisfaction des besoins sexuels. Que faire alors pour y remédier ? Ainsi, notre objectif d’étude est de savoir comment, en tant que professionnel de santé, peut-on prendre en compte la sexualité des personnes âgées en EMS en favorisant les processus adaptatifs de la personne ? Afin d’apporter des réponses, nous avons sélectionné 6 articles scientifiques sur les moteurs de recherches Pubmed et Psychinfo. Nos résultats ont été classés dans trois catégories : l’environnement, le résident et l’équipe pluridisciplinaire. La littérature dans ce domaine met en évidence l’importance de la sexualité des personnes âgées dans les soins. Apporter du soutien, des formations continues pour améliorer les connaissances et les attitudes du personnel soignant sont deux exemples qui pourraient aider à favoriser la sexualité des aînés en EMS

Morphosyntactic aspects of Kaiowa (Guarani)

Orientador: Lucy SekiTese (doutorado) - Universidade Estadual de Campinas, Instituto de Estudos da LinguagemResumo: A presente tese tem por objetivo oferecer uma descrição e análise de aspectos fundamentais da morfossintaxe do Kaiowá (Guarani), que permita um conhecimento plausível de sua gramática. Inicialmente,. a tese tráz considerações à respeito do povo Kaiowá e sua língua, além de tratar da metodologia empregada na pesquisa lingüística de campo. Posteriormente, é apresentada a descrição seguida de análise gramatical do Kaiowá que projetou a pesquisa a uma análise primeira da marcação de caso e de voz inversa. Neste trabalho, defende-se a idéia de que o Kaiowá é uma língua Ativa/Inativa (Cisão Intransitiva), e que a. marcação de caso intra-clausal apresenta cisões motivadas por operações morfossintáticas e pela pragmática, o que resulta em diferentes configurações da marcação de caso na língua: nominativo/acusativo, ergativo/absolutivo ou ergativo/acusativo. Quanto à voz inversa, pode-se concluir que a análise sobre inversão proposta por Payne (1994) para as línguas Tupi-Guarani, aplica-se ao Kaiowá, e, pelo que se observa pelas análises, essa é uma língua de inversão semântica motivada pela hierarquia de pessoa.Abstract: In this dissertation a description and an analysis of fundamental aspects of Kaiowá (Guarani) morphosyntax are presented. It results in a plausible knowledge of the grammar of this language. First, considerations on Kaiowá people and its language are made. It is also presented a discussion on the methodology adopted in the fieldwork of linguistic research. Second, the description is presented followed by grammatical analysis of Kaiowá that projected the research to a first analysis of case marking and inverse voice. In this dissertation, the idea of Kaiowá as an Active/lnactive (Split-S) is claimed. Splits motivated by morphosyntatic operation and by pragmatics are presented in intra-clausal case marking. It results in different configurations of case marking in the language: nominative/accusative, ergative/absolutive or ergative/accusative. Conceming the voice inverse its is possible to conclude that Payne's (1994) analysis of inversion on Tupi Guaraní languages is to Kaiowá. The semantic inverse motivated by the person hierarchy was also reveled through the analysis.DoutoradoDoutor em Linguístic

First records of Corydoras polystictus (Siluriformes: Callichthyidae: Corydoradinae) from the province of Misiones, northeast Argentina

Corydoras polystictus has been reported for Argentina only from the records published by Lüling in 1980 and 1982 from the río Gualeguay, an affluent of the lower río Paraná in the province of Entre Ríos. This author stated that the distribution of this species in Argentina would be linked to the middle and lower río Paraná basin. In this note, we provide the first Argentinean records from the río Paraná basin in the province of Misiones.Corydoras polystictus ha sido reportado para Argentina solo por los registros publicados por Lüling en 1980 y 1982 para el río Gualeguay, un afluente del río Paraná inferior, en la provincia de Entre Ríos. Este autor mencionó que la distribución de esta especie en Argentina estaría vinculada con la cuenca media e inferior del río Paraná. En este trabajo, proveemos los primeros registros de esta especie para la provincia argentina de Misiones en la cuenca del río Paraná.Fil: Cardoso, Yamila Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas; ArgentinaFil: Bogan, Sergio. Fundación de Historia Natural Félix de Azara; Argentina. Universidad Maimónides; ArgentinaFil: Meluso, Juan Manuel. Fundación de Historia Natural Félix de Azara; Argentina. Universidad Maimónides; ArgentinaFil: Bauni, Valeria. Fundación de Historia Natural Félix de Azara; Argentina. Universidad Maimónides; Argentin

Black holes in Einstein-Gau\ss -Bonnet-dilaton theory

Generalizations of the Schwarzschild and Kerr black holes are discussed in an astrophysically viable generalized theory of gravity, which includes higher curvature corrections in the form of the Gauss-Bonnet term, coupled to a dilaton. The angular momentum of these black holes can slightly exceed the Kerr bound. The location and the orbital frequency of particles in their innermost stable circular orbits can deviate significantly from the respective Kerr values. Study of the quasinormal modes of the static black holes gives strong evidence that they are mode stable against polar and axial perturbations. Future gravitational wave observations should improve the current bound on the Gauss-Bonnet coupling constant, based on observations of the low-mass x-ray binary A 0620-00.Comment: 8 pages, 7 figure

Absence of gender influence on the pharmacokinetics of chloroquine combined with primaquine in malaria vivax patients

Chloroquine is the first-line therapy against the asexual stages of Plasmodium vivax. There is a high variation of chloroquine plasma levels after therapeutic doses, which can lead to inadequate exposure to the drug. The gender influence was low regarding the disposition of the drug, which is relevant as there are significant physiological variations between male and female patients. The objective of the study was to investigate whether gender modifies the pharmacokinetics parameters of chloroquine in patients with malaria vivax. A prospective study was performed in male and female adult patients using chloroquine (total dose of 25 mg/kg for three days) combined with primaquine. Serial blood samples were collected at admission and up to 672 h post-administration of the drugs. Chloroquine was measured in plasma samples by high-performance liquid chromatography with fluorescence detection. A non-compartmental analysis was used for modeling the data. A total of 26 male and 25 female patients were enrolled in the study. The pharmacokinetic parameters of chloroquine were similar between male and female patients: a half-life of 9.5 days and 10.2 days, maximum concentration (Cmax) of 1295 ng/ml and 1220 ng/ml, area-under-the-curve (AUC 0–28) of 241 μg/mL h and 237 μg/mL h, observed clearance (CL/f) of 5.8 and 5.5 L/h and the volume of distribution (V/f) of 1869 L and 1936 L. The study results suggest that a similar dose regimen of chloroquine combined with primaquine provides a comparable pattern of exposure in male and female patients