RESUMO Objetivo Traduzir e adaptar culturalmente para o português brasileiro os questionários Self-Advocacy Checklist “I can”, Audiology Self-Advocacy Checklist - ELEMENTARY SCHOOL (ASAC-ES), Audiology Self-Advocacy Checklist - MIDDLE SCHOOL (ASAC-MS) e Audiology Self-Advocacy Checklist - HIGH SCHOOL (ASAC-HS), para avaliar os habilidades de autoadvocacia de usuários de dispositivos eletrônicos auditivos. Método A tradução foi realizada por meio de uma adaptação das diretrizes de Beaton et al. (2000). A versão pré-teste foi aplicada em dois grupos. O Grupo 1 (G1) foi composto por 14 professores de adolescentes com deficiência auditiva. O Grupo 2 (G2) foi composto por 15 pacientes adolescentes com deficiência auditiva, usuários de dispositivos eletrônicos auditivos, que fazem uso da linguagem oral como forma primária de comunicação. Resultados Os instrumentos foram traduzidos como Checklist de autoadvocacia “Eu consigo” e Checklists de Autoadvocacia em Audiologia - Ensino Fundamental I, Ensino Fundamental II e Ensino Médio. Para o G1, não houve relato de dificuldade em relação aos termos utilizados nos protocolos, porém, relataram dificuldades em relação ao preenchimento do progresso do estudante. Para o G2, as fonoaudiólogas que aplicaram os instrumentos em forma de entrevista não relataram dificuldade quanto ao uso do instrumento e sua aplicação. Após a aplicação da versão pré-teste, não houve necessidade de fazer alterações nos instrumentos, os quais foram apresentados como versão final. Conclusão As Checklist de autoadvocacia foram traduzidas e adaptadas culturalmente para o português brasileiro e são instrumentos válidos para a mensuração das habilidades de autoadvocacia de estudantes com deficiência auditiva em contexto clínico.

ABSTRACT Purpose To translate and cross-culturally adapt to Brazilian Portuguese four instruments for assessing self-advocacy skills of users of electronic hearing devices: the “I can” Self-Advocacy Checklist and three versions of the Audiology Self-Advocacy Checklist (ELEMENTARY SCHOOL, MIDDLE SCHOOL and HIGH SCHOOL). Methods The translation process was adapted from the guidelines of Beaton et al. (2000). The prefinal version was pre-tested in two groups. Group 1 (G1) was composed of 14 teachers of adolescents with hearing loss. Group 2 (G2) was composed of 15 adolescent patients with hearing loss, electronic assistive device users, who use oral language as their primary form of communication. Results The instruments were translated as Checklist de autoadvocacia “Eu consigo” e Checklists de Autoadvocacia em Audiologia - Ensino Fundamental I, Ensino Fundamental II and Ensino Médio. G1 did not report difficulties regarding the terms used in the checklists; however, they reported difficulties completing the student’s progress. The audiologists who used the checklists to interview G2 did not report difficulties regarding the use of the instrument. Therefore, after pre-testing the prefinal version, there was no need to make changes to the instruments, which were then presented as the final version. Conclusion All Self-Advocacy Checklists were translated and cross-culturally adapted into Brazilian Portuguese and are valid instruments to measure the self-advocacy skills of students with hearing loss in a clinical context.

RESUMO Objetivo conhecer como se deu o processo de criação de políticas públicas em saúde auditiva no Brasil, bem como a influência do Poder Judiciário na concretização do acesso, pela pessoa com deficiência auditiva, ao Sistema de Frequência Modulada (Sistema FM) e para utilização em ambiente escolar. Métodos estudo qualitativo exploratório, por meio do qual foi realizado, inicialmente, um levantamento normativo nos sítios eletrônicos da Presidência da República, Câmara dos Deputados e Ministério da Saúde, visando identificar, no período compreendido entre outubro de 1988 e outubro de 2019, a existência de normas que versassem sobre a criação de políticas públicas em saúde auditiva. Foi realizado, em complemento, levantamento jurisprudencial nos sítios eletrônicos de Tribunais de Justiça, Tribunais Regionais Federais e Tribunais Superiores, visando identificar, no período compreendido entre janeiro de 2000 e outubro de 2019, a existência de decisões judiciais que versassem sobre acesso ao Sistema FM, via Sistema Único de Saúde (SUS). Resultados foi possível identificar dez instrumentos normativos que tratavam, especificamente, da criação de políticas públicas em saúde auditiva, além de seis decisões judiciais, cujos méritos consistiam, propriamente, no acesso ao Sistema FM, via SUS. Conclusão o Poder Judiciário tem papel fundamental na concretização do acesso ao Sistema FM pela pessoa com deficiência auditiva, uma vez que sua atuação suprime omissões dos outros Poderes e impede que políticas públicas já concebidas contemplem restrições contrárias à Constituição Federal.

ABSTRACT Purpose to know how the process of creating public policies on Hearing Health in Brazil, and the influence of the Judiciary Power for the access by the hearing impaired person and the use in the school environment, concerning the Frequency Modulation (FM) System. Methods an exploratory qualitative study through which a normative survey was initially carried out - on the websites of the Presidency, the Chamber of Deputies and the Ministry of Health - aiming to identify, from October 1988 to October 2019, the existence of norms dealing with the creation of public policies on Hearing Health. Also, a jurisprudential survey was carried out - on the websites of Courts of Justice, Federal Regional Courts, and Superior Court of Justice - to identify the existence of court decisions dealing with access to the FM System via the Unified Health System in the period from January 2000 to October 2019. Results We identified ten normative instruments that dealt specifically with the creation of public policies on Hearing Health, as well as six court decisions whose merits consisted of access to the FM System via the Unified Health System. Conclusion The Judiciary has a fundamental role in achieving access to the FM System for people with hearing impairment since its performance suppresses omissions provided by other Powers and prevents public policies already designed to contemplate restrictions contrary to the Federal Constitution.

Precision cylindrical grinding is used extensively in the manufacture of precision components in the metal-mechanical industry in general. Modern CNC grinding machines have improved this process with respect to the positioning and rigidity of the machine-workpiece-tool system, allowing the production of high precision parts with low dimensional tolerances. Besides the difficulties inherent to the process, awareness has grown in recent years regarding the environmental issues of cutting fluids. As a response, the industry has begun to seek alternative lubrication and cooling methods. Among the various existing techniques, Minimum Quantity Lubrication (MQL) has been considered as an alternative. This technique can be understood as a combination of conventional lubrication and cooling methods and dry machining, in which a small quantity of lubricating oil mixed with compressed air flow is delivered in the wheel-workpiece interface. The MQL technique is already widely employed in machining processes with tools of defined geometry (e.g. turning), in which produces very satisfactory results. However, the MQL technique has been little explored in grinding processes (non-defined tool geometry), in which the really effective heat removal methods are required due to the frictional heat generation in the grinding zone. Consequently, the aim of this study was to evaluate the plunge cylindrical internal grinding operation when using the MQL technique and the conventional cooling method. Roughness and roundness were the outputparameters. As a result, it was found that the best values of roughness Ra were obtained with the conventional lubrication method. The MQL technique applied as proposed was not able to flush the chips away from the grinding zone, leading to the highest Ra values. No significant differences were detected among the cooling methods when analyzing the roundness results. The workpiece fixture method selected was responsible for the overall unsatisfactory results.

This paper shows a study about the influence of type and number of sterilizations in the cutting ability of diamond points used in dentistry. As a result, the sterilization using the oven was the process, which didn't result in a decreasing in the cutting ability of the diamond points and, until the second sterilization, it resulted in a increasing of the cutting ability.

This paper presents a research in which the performance of two different grinding wheels (a conventional and a CBN wheel) was evaluated in a transverse cylindrical grinding of a eutectic alloy. Three cutting conditions were tested: rough, semi-finishing and finishing. As evaluating parameters, the cutting force, the roughness and the wheel wear were measured. As a result, the best values of the cutting force and the roughness were obtained when grinding with the conventional wheel, due to the best dressing operation performed, for all the cutting conditions. The CBN presented the best G ratio values. Although, the G ratio values observed for the CBN wheel were lower than the expected one due to the non-effective dressing operation applied. In the conditions tested, in terms of cutting force and roughness, the conventional wheel is the best choice. In terms of G ratio, a cost analysis is crucial to determine if the differences observed among the wheels can justify the use of the CBN wheel. In a positive case, the dressing operation must be improved.

In this paper an experimental research is presented in which different types of cutting fluids (a cutting oil and three different types of soluble oils) and grinding wheels (alumina and vitrified CBN) were tested in the inlet engine valves grinding. As evaluation parameters the workpiece residual stress and the grinding wheel wear were analyzed. The cutting fluid and the grinding wheel types adopted resulted in changes in all the parameters, due to the different lubricant abilities among the fluids and due to the differences in the mechanical and thermal properties among the abrasives tested. For grinding this steel, the CBN wheel is the best choice, mainly due to compressive residual stress results obtained for all cutting fluids tested. The cutting oil is the most adequate cutting fluid to be used, due to its higher lubricity and ability in keeping the wheel sharp for longer periods of time, reducing the overall grinding energy and the thermal damage.

This article discusses the development of a test bench and a methodology for the study of composite resin abrasive wear. To evaluate the operation of the test bench and to compare the proposed methodology with other existing ones, a study was made of the five composites most commonly used by dentists. The one-way ANOVA method and the Tukey test were used to statistically analyze the results by multiple comparisons of the groups of resins tested. Using the proposed methodology, these resins were classified in an increasing order of abrasive wear strength, as follows: Charisma (the lowest abrasive wear strength), Tetric, TPH, Herculite and Z-100 (the highest abrasive wear strength) (p < 0.05). In comparison to other methodologies, the results of the proposed methodology presented the lowest coefficient of variation.

The aim of this work is to evaluate the mechanism of stock removal and the ground surface quality of advanced ceramics machined by a surface grinding process using diamond grinding wheels. The analysis of the grinding performance was done regarding the cutting surface wear behavior of the grinding wheel for ceramic workpieces. The ground surface was evaluated using Scanning Electron Microscopy (SEM). As a result it can be said that the mechanism of material removal in the grinding of ceramic is largely one of brittle fracture. The increase of the h max can reduce the tangential force required by the process. Although, it results in an increase in the surface damage, reducing the mechanical properties of the ground component.

CBN grinding wheels are superabrasive tools, with cutting ability higher than the conventional ones, specially used for grinding DTG (Difficult to Grind) materials. Due to the higher hardness and thermal conductivity of the CBN superabrasive grains, when compared with conventional abrasive grains, the use of CBN tools reduce the grinding temperatures decreasing the probability of workipece’s thermal damage. These proprieties of CBN grains permit lowering the energy partition because less heat is generated during grinding and much heat is dissipated through the grinding wheel instead of through the workpiece. This paper shows a research about the microstructural changes in the ground subsurface and the differences in the superficial integrity when using two types of superabrasive grinding wheels, manufactured with vitrified and resin bonds, analyzed in different cutting conditions. The ground material was the VC 131 steel, hardened and tempered. Were not observed microstructural changes in the subsurface ground with the two types of tools. As a result, the use of different types of the bonding do not affect the surface integrity neither resulted in microstructural changes, because the maximum temperatures measured in the grinding zone were lower than 125 °C, much less than the required level to cause microstructural changes.