Warped metrics for location-scale models

This paper argues that a class of Riemannian metrics, called warped metrics, plays a fundamental role in statistical problems involving location-scale models. The paper reports three new results : i) the Rao-Fisher metric of any location-scale model is a warped metric, provided that this model satisfies a natural invariance condition, ii) the analytic expression of the sectional curvature of this metric, iii) the exact analytic solution of the geodesic equation of this metric. The paper applies these new results to several examples of interest, where it shows that warped metrics turn location-scale models into complete Riemannian manifolds of negative sectional curvature. This is a very suitable situation for developing algorithms which solve problems of classification and on-line estimation. Thus, by revealing the connection between warped metrics and location-scale models, the present paper paves the way to the introduction of new efficient statistical algorithms.Comment: preprint of a submission to GSI 2017 conferenc

Physiological response and performance of tambaqui fed with diets supplemented with Amazonian nut

The present study evaluated the effectiveness of Amazonian nut (Bertholletia excelsa) as an alternative source of vegetal protein in tambaqui (Colossoma macropomum) diet. Performance and physiological status of fish fed for 60 days were evaluated. Four experimental isonitrogenous diets with 36% crude protein were formulated with increasing levels of nut meal (0, 10, 20 and 30%). Results showed the same growth performance for fish fed with diet with different levels of Amazonian nut than that without this ingredient (control). Analysis of physiological parameters (hematocrit, erythrocyte number, hemoglobin concentration, hematimetric indexes, total plasma protein and plasma glucose) corroborate these results, with no significant differences among treatments. Therefore, adding up to 30% of Amazonian nut in tambaqui diet there is no negative effect on physiological homeostasis and growth performance, indicating that the Amazonian nut is a promising alternative dietary protein source ingredient for tambaqui

Nossa Várzea: cidadania e sustentabilidade na Amazônia brasileira

Em um novo modelo de gestão compartilhada da Secretaria do Patrimônio da União, a iniciativa faz parte do projeto Nossa Várzea – regularização fundiária em áreas de várzeas – e está sendo desenvolvida pela SPU, por meio da Gerência da Secretaria do Patrimônio da União do Estado do Pará (GRPU/PA). Tem como objetivo promover a regularização fundiária de ocupações em terras públicas utilizando o Termo de Autorização de Uso – instrumento legal inovador, que constitui o fundamento expressivo da ação. Ao entregar o Termo às famílias de comunidades ribeirinhas, a União reconhece o direito à ocupação e possibilita a exploração sustentável das áreas de várzeas. Além disso, o instrumento representa para a família beneficiada um comprovante oficial de residência e uma garantia de acesso a aposentadoria, a recursos do Programa Nacional de Fortalecimento da Agricultura Familiar (Pronaf) e a outros programas sociais do Governo Federal. Desde a implantação do Programa, já foram beneficiadas cerca de 6.000 famílias ribeirinhas, principalmente as que residem no arquipélago do MarajóNúmero de páginas: 07 p .InovaçãoIniciativa premiada no 12º Concurso Inovação na Gestão Pública Federal sob responsabilidade de Alexandra Reschke. Ações premiadas no 12º Concurso Inovação na Gestão Pública Federal – 2007Áreas temáticas: Arranjos institucionais para coordenação e/ou implementação de políticas públicas; Arranjos institucionais e articulação de parcerias; Sociedade e cidadania; Articulação de parcerias; Articulação de parcerias e gestão participativa; Articulação de parcerias e gestão participativ

Energy minimization problem in two-level dissipative quantum control: meridian case

International audienceWe analyze the energy-minimizing problem for a two-level dissipative quantum system described by the Kossakowsky-Lindblad equation. According to the Pontryagin Maximum Principle (PMP), minimizers can be selected among normal and abnormal extremals whose dynamics are classified according to the values of the dissipation parameters. Our aim is to improve our previous analysis concerning 2D solutions in the case where the Hamiltonian dynamics are integrable

Spatially homogeneous Lifshitz black holes in five dimensional higher derivative gravity

We consider spatially homogeneous Lifshitz black hole solutions in five dimensional higher derivative gravity theories, which can be possible near horizon geometries of some systems that are interesting in the framework of gauge/gravity duality. We show the solutions belonging to the nine Bianchi classes in the pure R^2 gravity. We find that these black holes have zero entropy at non-zero temperatures and this property is the same as the case of BTZ black holes in new massive gravity at the critical point. In the most general quadratic curvature gravity theories, we find new solutions in Bianchi Type I and Type IX cases.Comment: 15 pages, no figure; v2, refs added, version to appear in JHE

Evaluation of the effectiveness of a novel brain-computer interface neuromodulative intervention to relieve neuropathic pain following spinal cord injury: Protocol for a single-case experimental design with multiple baselines

Background: Neuropathic pain is a debilitating secondary condition for many individuals with spinal cord injury. Spinal cord injury neuropathic pain often is poorly responsive to existing pharmacological and nonpharmacological treatments. A growing body of evidence supports the potential for brain-computer interface systems to reduce spinal cord injury neuropathic pain via electroencephalographic neurofeedback. However, further studies are needed to provide more definitive evidence regarding the effectiveness of this intervention. Objective: The primary objective of this study is to evaluate the effectiveness of a multiday course of a brain-computer interface neuromodulative intervention in a gaming environment to provide pain relief for individuals with neuropathic pain following spinal cord injury. Methods: We have developed a novel brain-computer interface-based neuromodulative intervention for spinal cord injury neuropathic pain. Our brain-computer interface neuromodulative treatment includes an interactive gaming interface, and a neuromodulation protocol targeted to suppress theta (4-8 Hz) and high beta (20-30 Hz) frequency powers, and enhance alpha (9-12 Hz) power. We will use a single-case experimental design with multiple baselines to examine the effectiveness of our self-developed brain-computer interface neuromodulative intervention for the treatment of spinal cord injury neuropathic pain. We will recruit 3 participants with spinal cord injury neuropathic pain. Each participant will be randomly allocated to a different baseline phase (ie, 7, 10, or 14 days), which will then be followed by 20 sessions of a 30-minute brain-computer interface neuromodulative intervention over a 4-week period. The visual analog scale assessing average pain intensity will serve as the primary outcome measure. We will also assess pain interference as a secondary outcome domain. Generalization measures will assess quality of life, sleep quality, and anxiety and depressive symptoms, as well as resting-state electroencephalography and thalamic γ-aminobutyric acid concentration. Results: This study was approved by the Human Research Committees of the University of New South Wales in July 2019 and the University of Technology Sydney in January 2020. We plan to begin the trial in October 2020 and expect to publish the results by the end of 2021. Conclusions: This clinical trial using single-case experimental design methodology has been designed to evaluate the effectiveness of a novel brain-computer interface neuromodulative treatment for people with neuropathic pain after spinal cord injury. Single-case experimental designs are considered a viable alternative approach to randomized clinical trials to identify evidence-based practices in the field of technology-based health interventions when recruitment of large samples is not feasible

Concurso público para provimento de cargos do quadro de pessoal do Ministério do Planejamento, Orçamento e Gestão (MP) e da Escola Nacional de Administração Pública (Enap) - 2015

Realização de concurso público para o provimento cargos do Quadro de Pessoal do Ministério do Planejamento, Orçamento e Gestão – MP e do Quadro de Pessoal da Escola Nacional de Administração Pública - ENAP.Portaria MP nº 456/2014, 1 páginaEdital nº 01/2015, 53 páginasEdital nº 02/2015, 4 páginasEdital nº 03/2015, 1 páginaEdital nº 04/2015, 4 páginasEdital nº 05/2015, 1 páginaEdital nº 06/2015, 1 páginaEdital nº 07/2015, 1 páginaEdital nº 08/2015, 39 páginasEdital nº 09/2015, 40 páginasEdital nº 10/2015, 1 páginaEdital nº 11/2015, 1 páginaEdital nº 12/2015, 4 páginasEdital nº 13/2015, 14 páginasEdital nº 14/2015, 1 páginaEdital nº 15/2015, 1 páginaEdital nº 16/2015, 1 páginaEdital nº 17/2015, 4 páginasEdital MP nº 01/2015, 1 páginaEdital MP nº 03/2015, 1 páginaEdital MP nº 04/2015, 1 páginaPortaria nº 611/2015, 1 páginaPortaria SE/MP nº 1.077/2015, 1 páginaEdital nº 4/2015, 1 páginaEdital MP/Enap nº 04/2016, 1 páginaPortaria nº 1.225/2016, 1 páginaPortaria nº 1.227/2016, 1 páginaPortaria nº 1.250/2016, 1 páginaEdital nº 06/2016, 1 páginaPortaria nº 1.364/2016, 1 páginaPortaria nº 183/2017, 1 páginaPortaria nº 489/2017, 1 páginaPortaria nº 691/2017, 1 páginaPortaria nº 779/2017, 1 páginaPortaria nº 897/2017, 1 páginaPortaria nº 932/2017, 1 páginaAdministração PúblicaGestão de Pessoa

Electronic and Geometric Structures of Rechargeable Lithium Manganese Sulfate Li2Mn(SO4)2 Cathode

Here, we report the use of Li2Mn(SO4)2 as a potential energy storage material and describe its route of synthesis and structural characterization over one electrochemical cycle. Li2Mn(SO4)2 is synthesized by ball milling of MnSO4·H2O and Li2SO4·H2O and characterized using a suite of techniques, in particular, ex situ X-ray diffraction, X-ray photoelectron spectroscopy, and X-ray absorption spectroscopy on the Mn and S K-edges to investigate the electronic and local geometry around the absorbing atoms. The prepared Li2Mn-(SO4)2 electrodes undergo electrochemical cycles to different potential points on the charge−discharge curve and are then extracted from the cells at these points for ex situ structural analysis. Analysis of X-ray absorption spectroscopy (both near and fine structure part of the data) data suggests that there are minimal changes to the oxidation state of Mn and S ions during charge−discharge cycles. However, X-ray photoelectron spectroscopy analysis suggests that there are changes in the oxidation state of Mn, which appears to be different from the conclusion drawn from X-ray absorption spectroscopy. This difference in results during cycling can thus be attributed to electrochemical reactions being dominant at the surface of the Li2Mn(SO4)2 particles rather than in the bulk

Comparative study of nonlinear properties of EEG signals of a normal person and an epileptic patient

Background: Investigation of the functioning of the brain in living systems has been a major effort amongst scientists and medical practitioners. Amongst the various disorder of the brain, epilepsy has drawn the most attention because this disorder can affect the quality of life of a person. In this paper we have reinvestigated the EEGs for normal and epileptic patients using surrogate analysis, probability distribution function and Hurst exponent. Results: Using random shuffled surrogate analysis, we have obtained some of the nonlinear features that was obtained by Andrzejak \textit{et al.} [Phys Rev E 2001, 64:061907], for the epileptic patients during seizure. Probability distribution function shows that the activity of an epileptic brain is nongaussian in nature. Hurst exponent has been shown to be useful to characterize a normal and an epileptic brain and it shows that the epileptic brain is long term anticorrelated whereas, the normal brain is more or less stochastic. Among all the techniques, used here, Hurst exponent is found very useful for characterization different cases. Conclusions: In this article, differences in characteristics for normal subjects with eyes open and closed, epileptic subjects during seizure and seizure free intervals have been shown mainly using Hurst exponent. The H shows that the brain activity of a normal man is uncorrelated in nature whereas, epileptic brain activity shows long range anticorrelation.Comment: Keywords:EEG, epilepsy, Correlation dimension, Surrogate analysis, Hurst exponent. 9 page