Página 1 dos resultados de 10 itens digitais encontrados em 0.003 segundos

GRBAS and Cape-V Scales: High Reliability and Consensus When Applied at Different Times

Nemr, Katia; Simoes-Zenari, Marcia; Cordeiro, Gislaine Ferro; Tsuji, Domingos; Ogawa, Allex Itar; Ubrig, Maysa Tiberio; Moreira Menezes, Marcia Helena
Fonte: MOSBY-ELSEVIER; NEW YORK Publicador: MOSBY-ELSEVIER; NEW YORK
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
17.303379%
Objectives. To evaluate whether the overall dysphonia grade, roughness, breathiness, asthenia, and strain (GRBAS) scale, and the Consensus Auditory Perceptual Evaluation-Voice (CAPE-V) scale show the same reliability and consensus when applied to the same vocal sample at different times. Study Design. Observational cross-sectional study. Methods. Sixty subjects had their voices recorded according to the tasks proposed in the CAPE-V scale. Vowels /a/ and /i/ were sustained between 3 and 5 seconds. Reproduction of six sentences and spontaneous speech from the request "Tell me about your voice" were analyzed. For the analysis of the GRBAS scale, the sustained vowel and reading tasks of the sentences was used. Auditory-perceptual voice analyses were conducted by three expert speech therapists with more than 5 years of experience and familiar with both the scales. Results. A strong correlation was observed in the intrajudge consensus analysis, both for the GRBAS scale as well as for CAPE-V, with intraclass coefficient values ranging from 0.923 to 0.985. A high degree of correlation between the general GRBAS and CAPE-V grades (coefficient = 0.842) was observed, with similarities in the grades of dysphonia distribution in both scales. The evaluators indicated a mild difficulty in applying the GRBAS scale and low to mild difficulty in applying the CAPE-V scale. The three evaluators agreed when indicating the GRBAS scale as the fastest and the CAPE-V scale as the most sensitive...

Availability of binaural cues for bilateral implant recipients and bimodal listeners with and without preserved hearing in the implanted ear

Dorman, Michael F.; Sheffield, Sterling W.; Teece, Kate; Olund, Amy P.; Gifford, René H.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
16.891382%
The purpose of the current study was to examine the availability of binaural cues for adult, bilateral cochlear implant (CI) patients, bimodal patients and hearing preservation patients using a multiple baseline, observational study design. Speech recognition was assessed using the Bamford-Kowal-Bench Speech-In-Noise (BKB-SIN) test as well as the AzBio sentences [Spahr et al., 2012] presented in a multi-talker babble at +5 dB signal-to-noise ratio (SNR). Test conditions included speech at 0° with noise presented at 0° (S0N0), 90° (S0N90), and 270° (S0N270). Estimates of summation, head shadow (HS), squelch, and spatial release from masking (SRM) were calculated. Though none of the subject groups consistently showed access to binaural cues, the hearing preservation patients exhibited a significant correlation between summation and squelch whereas the bilateral and bimodal participants did not. That is, the two effects associated with binaural hearing—summation and squelch—were positively correlated for only the listeners with bilateral acoustic hearing. This finding provides evidence for the supposition that implant recipients with bilateral acoustic hearing have access to binaural cues which should, in theory, provide greater benefit in noisy listening environments. It is likely...

Aprender de la experiencia la imagen quineana del lenguaje y las objeciones de Wittgenstein

Gómez Higuera, Magda Alejandra
Fonte: Pontifícia Universidade Javeriana Publicador: Pontifícia Universidade Javeriana
Tipo: bachelorThesis; Trabajo de Grado Pregrado Formato: Pdf
Português
Relevância na Pesquisa
26.891382%
El trabajo de grado titulado Aprender de la experiencia: la imagen quineana del lenguaje y las críticas de Wittgenstein se centra en analizar la relevancia de la experiencia en el proceso de aprendizaje del lenguaje. De esta forma, se estudia la posición de Quine destacando los puntos relevantes en donde se defiende la experiencia como fuente del significado y como la justificación de nuestras prácticas de enseñanza y aprendizaje del lenguaje. Luego, se señala que esta posición quineana muestra un enorme parecido con lo que se conoce como la imagen agustiniana del lenguaje, que es el centro de un conjunto de críticas del segundo Wittgenstein. Lo anterior, permitetanto encontrar parecidos entre Quine y Wittgenstein como poder desarrollar una crítica al primero con base en las ideas del segundo.; The degree work entitled Learning from Experience: the Quinean Image of Language and Wittgenstein's Criticism focuses on analyzing the relevance of experience in language learning process. Thus, we study the position of Quine highlighting relevant points where experience is defended as a source of meaning and the justification of our practices of teaching and learning of language. Then he notes that this Quinean position shows a strong resemblance to what is known as the Augustinian picture of language...

Para um modelo ontogenético da escrita infantil no 1.º ciclo de ensino básico : a emergência do período como unidade de organização textual

Mendes, Maria Mafalda Sanches de Azevedo, 1962-
Fonte: Universidade de Lisboa Publicador: Universidade de Lisboa
Tipo: Tese de Doutorado
Publicado em //2015 Português
Relevância na Pesquisa
16.891382%
Tese de doutoramento, Linguística (Linguística Aplicada), Universidade de Lisboa, Faculdade de Letras, 2015; Este trabalho procura oferecer uma visão de proximidade do desenvolvimento da escrita num grupo de crianças do 1.º ciclo do ensino básico, em particular, do desenvolvimento do conceito de período (sentence) como unidade de organização dos significados específica dos registos da língua escrita. A tese divide-se em duas partes. Na primeira, procede-se à exposição dos modelos da ontogenia de língua propostos por Vygotsky e por Halliday, que situam a ontogenia da língua escrita no campo mais vasto da ontogenia da língua; problematiza-se os conceitos de período e de pontuação, vistos à luz das caraterísticas da escrita inicial, e apresenta-se o modelo de descrição dos sistemas de significado textuais da linguística sistémico-funcional, com particular incidência no conceito de potencial de estrutura de género, no sistema do TEMA e nos recursos da coesão, dada a relevância dos significados textuais para a organização dos significados da representação e da interação na linearidade do fluxo discursivo. Na segunda parte apresenta-se o estudo empírico realizado com o objetivo de rastrear e compreender as progressões na organização do fluxo discursivo em períodos na escrita de alunos do 1.º ciclo do ensino básico...

Properties of cosmologies with dynamical pseudo Nambu-Goldstone bosons

Ng, S. C. C.; Wiltshire, D. L.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
16.891382%
We study observational constraints on cosmological models with a quintessence field in the form of a dynamical pseudo Nambu-Goldstone boson. After reviewing the properties of the solutions, from a dynamical systems phase space analysis, we consider the constraints on parameter values imposed by luminosity distances from the 60 Type Ia supernovae published by Perlmutter et al., and also from gravitational lensing statistics of distant quasars. In the case of the Type Ia supernovae we explicitly allow for the possibility of evolution of the peak luminosities of the supernovae sources, using simple empirical models which have been recently discussed in the literature. We find weak evidence to suggest that the models with supernovae evolution fit the data better in the context of the quintessence models in question. If source evolution is a reality then the greatest challenge facing these models is the tension between current value of the expansion age, H_0 t_0, and the fraction of the critical energy density, Omega_{phi0}, corresponding to the scalar field. Nonetheless there are ranges of the free parameters which fit all available cosmological data.; Comment: 22 pages, RevTeX, 13 figures, epsf. v3: References added, plus a few sentences to clarify some small points; v4: Typos fixed

Bispectrum signatures of a modified vacuum in single field inflation with a small speed of sound

Meerburg, P. Daniel; van der Schaar, Jan Pieter; Jackson, Mark G.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
16.891382%
Deviations from the Bunch-Davies vacuum during an inflationary period can leave a testable imprint on the higher-order correlations of the CMB and large scale structures in the Universe. The effect is particularly pronounced if the statistical non-Gaussianity is inherently large, such as in models of inflation with a small speed of sound, e.g. DBI. First reviewing the motivations for a modified vacuum, we calculate the non-Gaussianity for a general action with a small speed of sound. The shape of its bispectrum is found to most resemble the 'orthogonal' or 'local' templates depending on the phase of the Bogolyubov parameter. In particular, for DBI models of inflation the bispectrum can have a profound 'local' template feature, in contrast to previous results. Determining the projection into the observational templates allows us to derive constraints on the absolute value of the Bogolyubov parameter. In the small sound speed limit, the derived constraints are generally stronger than the existing constraint derived from the power spectrum. The bound on the absolute value of the Bogolyubov parameter ranges from the 10^-6 to the 10^-3 level for H/\Lambda_c = 10^-3, depending on the specific details of the model, the sound speed and the phase of the Bogolyubov parameter.; Comment: 34 pages...

Cosmic Topology : Twenty Years After

Luminet, Jean-Pierre
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
16.891382%
What is the shape of the Universe? Is it finite or infinite ? Is space multi-connected to create ghost images of faraway cosmic sources? After a "dark age" period, the field of cosmic topology has now become one of the major concerns in astronomy and cosmology, not only from theorists but also from observational astronomers. Here I give a personal account of the spectacular progress in the field since the beginning of the 1990's, when I started to work in it.; Comment: 14 pages. Contribution to a special issue of the journal "Gravitation and Cosmology" devoted to the 75th birthday of Prof. Andrey Grib. Version 2 (some sentences have been rephrased to avoid text overlap with arXiv:1303.5086, arXiv:1303.4226, arXiv:1104.0015 by other authors). arXiv admin note: text overlap with arXiv:0802.2236

On exponential cosmological type solutions in the model with Gauss-Bonnet term and variation of gravitational constant

Ivashchuk, V. D.; Kobtsev, A. A.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
17.188652%
A D-dimensional gravitational model with Gauss-Bonnet term is considered. When ansatz with diagonal cosmological type metrics is adopted, we find solutions with exponential dependence of scale factors (with respect to "synchronous-like" variable) which describe an exponential expansion of "our" 3-dimensional factor-space and obey the observational constraints on the temporal variation of effective gravitational constant G. Among them there are two exact solutions in dimensions D = 22, 28 with constant G and also an infinite series of solutions in dimensions D \ge 2690 with the variation of G obeying the observational data.; Comment: 21 pages, 12 figures, LaTex; eq. (2.1) is modified and several sentences are added

A Probabilistic Calculus of Actions

Pearl, Judea
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 27/02/2013 Português
Relevância na Pesquisa
16.891382%
We present a symbolic machinery that admits both probabilistic and causal information about a given domain and produces probabilistic statements about the effect of actions and the impact of observations. The calculus admits two types of conditioning operators: ordinary Bayes conditioning, P(y|X = x), which represents the observation X = x, and causal conditioning, P(y|do(X = x)), read the probability of Y = y conditioned on holding X constant (at x) by deliberate action. Given a mixture of such observational and causal sentences, together with the topology of the causal graph, the calculus derives new conditional probabilities of both types, thus enabling one to quantify the effects of actions (and policies) from partially specified knowledge bases, such as Bayesian networks in which some conditional probabilities may not be available.; Comment: Appears in Proceedings of the Tenth Conference on Uncertainty in Artificial Intelligence (UAI1994)

Os categóricos de observação: uma solução para viabilizar o holismo semântico "moderado" de Quine; Os Categóricos de Observação: Uma Solução para Viabilizar o Holismo Semântico de Quine

Velloso, Araceli Rosich Soares; Universidade Federal de Goiás
Fonte: Federal University of Santa Catarina – UFSC Publicador: Federal University of Santa Catarina – UFSC
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Formato: application/pdf
Publicado em 01/01/2006 Português
Relevância na Pesquisa
27.97217%
The “observational categoricals” constitute a very special set of sentences of great importance in the last phase of Quine’s work. According to Quine, the grammatical structure and therefore the role played by these sentences consideredby the philosopher as the neutral empirical content of theories would solve several difficulties in semantics and epistemology. Most urgent among them would be: the incommensurability of theories, their empirical verifiability, as well as explaining the language learning process. In consequence of the importanceof their task and their rather late appearance, we consider quite relevant to investigate in details the origin of these choice, as well as the structure and function of these sentences, very peculiars to Quine’s semantical approach.; Os “categóricos de observação” constituem uma categoria muito especial de sentenças que assumiram um papel de grande importância na fase final da obra de Quine. Segundo o filósofo americano, a estrutura gramatical e, por conseguinte, o papel desempenhado por essas sentenças, consideradas pelo filósofo como o “conteúdo empírico neutro” das teorias, resolveria diversas dificuldades em semântica e epistemologia. Dentre elas as mais urgentes seriam: a incomensurabilidade de teorias...