Background: having knowledge about the validity of procedures for newborn hearing screening (NHS) is fundamental, once the purpose of these programs is to identify all newborns with hearing loss at an acceptable cost. Aim: to estimate the specificity and the false-positive rate of NHS protocols using transient evoked otoacoustic emissions (TEOAE) and automated auditory brainstem response (AABR). Method: participants were 200 newborns who were submitted to a hearing screening test between March and July 2006. Three protocols were analyzed: protocol 1, NHS was carried out in two steps using TEOAE; protocol 2, NHS was carried out in two steps using AABR; and protocol 3, NHS was carried out in one step, using the two procedures -testing with TEOAE followed by a retest with AABR for all the newborns who did not pass the TEOAE testing. Results: although there was no statistically significant difference when comparing the referral rates to audiological diagnosis obtained in protocols using TEOAE and AABR, the protocol using TEOAE referred four times more newborns. Protocol 3 presented the highest referral rate, with a statistically significant difference when compared to protocols 1 and 2. Conclusions: the false-positive rate and consequently specificity were better for the protocol using AABR, followed respectively by the protocol using TEOAE and using both TEOAE and AABR.
Background: bone conduction auditory brainstem responses (ABR) in normal hearing individuals. Aim: to evaluate the clinical applicability of bone conduction ABR, characterizing normality and determining an assessment protocol. Method: participants of this study were 22 individuals with normal hearing (20dB NA), with ages between 20 and 30 years, 14 female and 8 male. All individuals were assessed using air and bone (vibrator positioned on the forehead and mastoid) conduction ABR. EP25 equipment, Interacoustic; 3A insertion phone; B-71 bone vibrator; click stimulus. Results: it was possible to evaluate the bone conduction ABR in all individuals. The results demonstrate that the electrophysiological threshold obtained when the vibrator was positioned on the forehead (32.69 ± 5.63 and 32.5 ± 7.07dB nHL) was higher than that obtained when the vibrator was positioned on the mastoid (25.00 ± 7.33 and 30.00 ± 5.34dB nHL) for both genders respectively. For this reason the vibrator was positioned on the mastoid. The electrophysiological threshold obtained by bone conduction was higher than that obtained by air conduction for both genders and also when all individuals were grouped together. Thus it is necessary to use a correction factor, according to the results, of 10dB nHL. The latency-intensity values of the V wave in the ipsilateral and contralateral recordings differed statistically according to gender, and should be considered separately. The value of 26.81 ± 6.99dB nHL was adopted as being the normal threshold for bone conduction ABR. Conclusion: it is possible to evaluate bone conduction ABR in the clinical environment. These results, when considered along with the air conduction ABR, increase the chances of a more precise diagnosis regarding the type of hearing loss. Key Words: Evoked potentials; Auditory; Brain Stem; Bone Conduction. ResumoTema: potenciais evocados auditivos do tronco encefálico (PEATEs) por condução óssea. Objetivo: avaliar a aplicabilidade clínica da pesquisa dos PEATEs por condução óssea, caracterizando a normalidade e determinando um protocolo de avaliação. Método: participaram deste estudo 22 indivíduos, na faixa etária entre 20 e 30 anos, sendo 14 do sexo feminino e 8 do sexo masculino, com audição normal (20dB NA). Os indivíduos foram avaliados por meio dos PEATEs por condução aérea e óssea (vibrador na fronte e mastóide). Equipamento EP25, Interacoustic; fone de inserção 3A; vibrador ósseo B-71; estímulo click. Resultados: foi possível realizar a pesquisa dos PEATEs por condução óssea em todos os indivíduos avaliados. Os resultados demonstraram que o limiar eletrofisiológico obtido com o vibrador na fronte (32,69 ± 5,63 e 32,5 ± 7,07dB nHL) foi maior do que quando o vibrador foi posicionado na mastóide (25,00 ±7,33 e 30,00 ± 5,34dB nHL), tanto para o sexo feminino quanto para o sexo masculino, respectivamente. Assim, optou-se pelo posicionamento do vibrador na mastóide. O limiar eletrofisiológico obtido por condução óssea foi maior que o limiar por condução áerea, com diferença ...
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RESUMEN:En el presente estudio se evaluó el efecto del propóleos sobre el metabolismo de la glucosa en ratones C57/BL-6 con diabetes mellitus tipo 2 inducida por dieta alta en grasa. Se midieron los cambios en las concentraciones séricas de lípidos, glucosa e insulina, y el efecto sobre la captación de 2-deoxi-[2,6- 14 C]-D-glucosa inducida por insulina en músculo sóleo de ratones tratados con propóleos fue significativamente superior al grupo control (P<0.05). En resumen, nuestros datos confirman que el propóleos es capaz de modular el metabolismo de glucosa en ratones C57/BL-6 con diabetes mellitus tipo 2 inducida por dieta alta en grasa. Los datos obtenidos constituyen un importante antecedente que avala el posible uso del propóleos como fuente de polifenoles con actividad antidiabetogénica.
A velhice é uma temática cada vez mais relevante diante do cenário de envelhecimento populacional. Neste trabalho, por meio da análise do discurso (Foucault, 2009), investigamse os sentidos sobre o corpo das mulheres velhas apresentados na série da Netflix “Grace and Frankie”. Um dos principais resultados da pesquisa foi a definição de envelhecimento performático, sendo essa uma forma de envelhecer apresentada na série e correlata aos modelos de envelhecimento contemporâneos. PALAVRAS-CHAVE: CORPO; VELHICE; PERFORMANCE; NETFLIX.
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This paper presents a comparative analysis between steel and steel‐concrete composite connections with extended end plate. Numerical models were developed using ATENA 3D and calibrated from the results obtained by Figueiredo (2004) – University of São Paulo (USP – São Carlos) ‐ Brazil. A parametric analysis, achieved by varying the diameter for the bolts and the stud bolts, showed that considering the concrete component in the connection increased the joint's stiffness by 41%. In addition, it showed that among all the parameters analyzed the bolt diameter was the most relevant one, capable of altering the characterization of the connection's ultimate limit state.
In this article, we investigate the conditions of possibility of discursive production about old age in contemporary times. The working hypothesis is that there is a model of "successful" old age that has become hegemonic in the media. We verified that this "successful" aging mode is intertwined with neoliberal rationality and aims to encourage individuals to be selfentrepreneurs in their old age projects. Thus, biopolitical shifts around old age in modernity and contemporaneity are analyzed. To investigate how the discourse of "successful" old age is configured, Foucault's genealogical perspective was used in order to suspend the crystallized truths about aging. Finally, one of the highlighted points is the emergence of a moralizing discourse on old age that classifies and divides elderly individuals into "deserving" or "failure", according to their commitment to the prescriptions of the "successful" old age model.
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