bluuebunny/crossref_metadata_2025 huggingface dataset:
Operational Control of Power Indicators of Diesel Engines with Common Rail Fuel System
Authors: Safin Filyus R. , Bashirov Radik M. , Negovora Andrey V. , Korabelnikov Sergey K. , Rakov Nikolay V.
Published: June 2023

Introduction. Operational methods to monitor the power indicators of engines for continuous diagnosis of their technical condition are of particular interest for creating optimal operating conditions of motor and tractor machinery. The methods are characterized by the mechanical efficiency, determined in the conditions of repair shops with the use of complex braking devices.
Aim of the Article. To present the results of research on the development of an operational method for determining the mechanical efficiency of diesel engines with batteryoperated electronically controlled fuel supply systems.
Materials and Methods. The Bashkir State Agrarian University proposed and successfully tested an operational method for assessing the technical condition of diesel engines with direct-acting fuel equipment on their mechanical efficiency, which is determined by the performance of their fuel equipment adjusted using the diesel itself as an adjusting stand. The possibility of using the proposed method for diesel engines with storage fuel systems was investigated.
Results. The accuracy of determining the mechanical efficiency of diesel engines by electronically controlled fuel systems of battery type can be affected by the features of their work – the correction of cyclic feeds by the electronic engine control unit depending on the technical condition of the cylinders and high fuel injection pressure. To test this hypothesis, there were carried out studies on a four-cylinder D4EA 2.0 engine of a Hyundai Tuscon car with a Common Rail type storage fuel system. The engine fuel supply system was supplemented with an electronic unit integrated between the injector and the standard engine control unit, which interrupted the transmission line of the control signal to the injector according to a given algorithm without the standard unit transition to emergency mode. It has been found that the proposed method can successfully determine the technical condition of the engine as a whole and of its individual cylinders (alternating disabled and working cylinders).
Discussion and Conclusion. The proposed operational method for determining the mechanical efficiency can be successfully used for diesel engines with accumulator electronically controlled fuel supply systems. At the same time, an increase in the cyclic supply by the electronic control unit of the engine fuel supply system reduces the mechanical efficiency slightly, and it can be taken into account only in special cases.
Improving the Design of the Disc Harrow for Berry Plantations
Authors: Ozherelev Viktor N. , Nikitin Viktor V.
Published: June 2023

Introduction. Reducing the distance of throwing soil into the zone around bushes and maintaining a leveled surface between rows of berry crops are urgent scientific problems. Aim of the Article. To identify the basic parameters for the interaction of a spherical disk with waterlogged soil and on this basis to develop the technical solution for reducing the distance of soil throwing away in space between rows of berry crops. Materials and Methods. The object of research is an orchard disc harrow equipped with a protective shield mounted in front of the outermost disc of the tool front panel. The subject of the research is the process of interaction of the end disc of the front harrow plate with the waterlogged soil in berry plantations. The length of the protective shield and its spatial orientation were chosen as optimization parameters for field experiments. The quality evaluation of intertillage of the berry plantations was carried out by profiling their surfaces. Results. Based on the results of theoretical studies, it was found that the angle of inclination of the protective shield in the horizontal plane should be within 53–54°, and with respect to the movement of the harrow – 50–58°. The results of field experiments have confirmed the theoretical conclusions. It has been established that only a protective shield, the length of which is 450 mm and the installation angle of 50°, allows completely eliminating the side throw of the soil beyond the width of the tool. In addition, these parameters ensure the stable operation of the disc tool in almost any soil moisture and weed infestation of space between berry bushes. Discussion and Conclusion. The use of a modernized tillage tool made it possible to exclude the soil throwing into the bush zone to increase the speed of the unit by 25%.
Simplified Models for Composite Elastic Behavior of Precast Concrete Insulated Wall Panels
Authors: Taylor Ruth , Bean Brennan , Maguire Marc , Al-Rubaye Salam , Al-Bayati Maryam A.
Published: June 2023

This paper outlines a new simplified method for predicting the degree of composite action (percent composite) and thus the elastic moment of inertia and the elastic section modulus for precast concrete insulated wall panels. This simplified approach was developed by using 1 million simulations from the iterative sandwich beam theory method. The overall bias (average ratio) of the linear approximation on the simulated test dataset is 1.0 for both cracking and deflection, and the overall coefficient of variation (COV) is 0.04 for cracking and 0.03 for deflection. When compared with data from previously published experiments, the new method has a bias of 1.02 and COV of 0.32 in cases where the experiment conforms to the assumptions of the new method. By comparison, the reported biases of other available methods, which are more complicated to use, range from 0.97 to 1.06, and the COVs of other available methods range from 0.16 to 0.32. Thus, the level accuracy of the new method to predict the percent composite is similar to the levels of accuracy of the more complicated approaches.
Steady-state simulation of groundwater flow in Khartoum state, Sudan
Authors: Mohammed Musaab A. A. , Kovács Balázs , Szabó Norbert P. , Szűcs Péter
Published: June 2023

The multi-aquifer system of the Nubian aquifer in central Sudan hydrogeological system was simulated using a three-dimensional steady-state model. The goal of the study is to detect the effect of pumping on the groundwater flow and thus, the aquifer productivity. The conceptual model of the study area was built based on the available geological and hydrogeological data guided by geophysical survey. Processing MODFLOW numerical code was used to calculate the hydraulic head and water balance under the existing boundary conditions. The model accurately simulated the hydraulic head with a determination coefficient of 0.88. The calibrated model indicated that the change in storage is 0.56 m3/day indicating the study area constitutes highly productive zone and is recommended for groundwater developments.
Determinanty ryzyka finansowego w systemie gmin w Polsce
Authors: Burzyńska Dorota
Published: June 2023

Celem opracowania jest weryfikacja czynników ryzyka finansowego w systemie gmin w Polsce. Zagadnienia zawarte w artykule są podstawą do uświadomienia sobie potrzeby i możliwości zarządzania ryzykiem finansowym w gminie. Problem nabiera istotnego znaczenia w aspekcie zarządzania ryzykiem w jednostkach samorządowych w okresie kryzysu gospodarczego. W artykule poddano analizie piśmiennictwo z danego zakresu oraz wykorzystano technikę wywiadu kwestionariuszowego dla potwierdzenia istniejących w praktyce czynników ryzyka finansowego. Badanie potwierdza występowanie w praktyce najistotniejszych czynników ryzyka finansowego w gminach w Polsce, a także konieczność zarządzania ryzykiem finansowym.
Kapitał wspólnot lokalnych i jego akumulacja
Authors: Krakowiak-Drzewiecka Monika , Kristof Agnieszka
Published: June 2023

Celem artykułu jest rozpoznanie sposobu analizy kapitału wspólnoty lokalnej (gminy) oraz jego akumulacji z wykorzystaniem studium przypadku. Przyjęto, że kapitał wspólnoty lokalnej tworzy 7 składowych kapitałów: naturalny, ludzki, kulturowy, społeczny, polityczny, finansowy i infrastrukturalny, a jego akumulacja przyczynia się do rozwoju społeczno-gospodarczego gminy oraz poprawy standardu życia jej mieszkańców, co z kolei przekłada się na zwiększenie jej atrakcyjności i konkurencyjności. Empiryczną realizacją przyjętego celu było opracowanie studium przypadku projektu „Aktywne Zabrze”. Powstało ono z wykorzystaniem wywiadu bezpośredniego przeprowadzonego z organizatorem projektu oraz informacji ze źródeł wtórnych. Identyfikacja kapitałów wspólnoty wykorzystywanych w projekcie „Aktywne Zabrze” oraz ich wzajemnych interakcji pozwoliły na wyciągnięcie wniosku, że rozwój poszczególnych typów kapitałów oraz interakcje, do jakich między nimi dochodzi, są decydujące dla akumulacji w każdym z typów oraz dla kapitału gminy w ogóle.
Municipal Own-Source Revenues in Times of the COVID-19 Pandemic
Authors: Życzkowska Elżbieta , Dziuba Jarosław
Published: June 2023

Own-source revenues represent one of the most important funding sources for municipalities in Poland. Such revenues cover all types of municipal receipts excluding subsidies and special purpose grants from the state budget. The purpose of the article was to assess the impact of the COVID-19 pandemic on municipal own-source revenues in the period 2020-2021. A comparative analysis method was used to assess this impact. The analyses were based on the revenue figures for 2020- -2021 (planned and received) as well as the figures for the year preceding the pandemic, i.e. 2019. The aggregate figures available on www.mf.gov.pl – reports on the implementation of local government budgets – constituted the main source of data. The conducted analysis showed that the first year of the pandemic was better than expected in terms of municipalities, as municipal revenues increased in Poland during this period. This resulted from the funding from the Central Governmental Fund for Local Investments (CGFLI) and qualifying these funds as own-source revenues. Rural municipalities benefited the most in this case. The scale of lost revenues as a result of fiscal power instruments applied by the municipalities was not significant.
Activity-limiting Injury in Adults: United States, 2020–2021
Authors: Cha Amy , Wang Xun
Published: June 2023

This report describes the percentage of adults who had an injury that limited their usual activities in the past 3 months by selected sociodemographic characteristics from the 2020 and 2021 National Health Interview Survey.
Effect of video on satisfaction and self-confidence in simulation training: a randomized clinical trial
Authors: Abarca Lissette Lucrecia Monge , Barros Alba Lúcia Bottura Leite de , Baptista Rui Carlos Negrão , Batista Ruth Ester Assayag , Lopes Juliana de Lima
Published: June 2023

ABSTRACT Objectives: to identify the effect on satisfaction and self-confidence of undergraduate nursing students after using a validated bed bath video during the simulation. Methods: blinded parallel randomized clinical trial. Participants were allocated to the control group (simulation with tutor) or intervention (simulation with video). After the interventions, the Student Satisfaction and Self Confidence with Learning Scale was used to assess satisfaction and self-confidence. The study was approved by the Ethics Committee and Brazilian Registry of Clinical Trials. Mann Whitney, Fisher Exact and Student t statistical tests were used. A significance level of 5% was adopted. Results: fifty eight students (30, control; and 28, intervention) were evaluated. There was no significant difference between the groups regarding satisfaction (p=0.832) and self-confidence (p>0.999). Conclusions: satisfaction and self-confidence were similar between the groups, and the two strategies could be used in the simulated practice of bed bathing.
Efeito do vídeo na satisfação e autoconfiança no treinamento por simulação: estudo clínico randomizado
Authors: Abarca Lissette Lucrecia Monge , Barros Alba Lúcia Bottura Leite de , Baptista Rui Carlos Negrão , Batista Ruth Ester Assayag , Lopes Juliana de Lima
Published: June 2023

RESUMO Objetivos: identificar o efeito na satisfação e autoconfiança de estudantes do curso de graduação em Enfermagem após uso de um vídeo validado sobre o banho no leito durante a simulação. Métodos: estudo clínico randomizado paralelo e cego. Os participantes foram alocados no grupo-controle (simulação com tutor) ou intervenção (simulação com vídeo). Após as intervenções, utilizou-se a Escala de Satisfação dos Estudantes e Autoconfiança com a Aprendizagem para avaliar a satisfação e autoconfiança. O estudo foi aprovado pelo Comitê de Ética e Registro Brasileiro de Ensaios Clínicos. Foram utilizados os testes estatísticos Mann Whitney, Exato de Fisher e t Student. Adotou-se nível de significância de 5%. Resultados: avaliaram-se 58 estudantes (30, controle; e 28, intervenção). Não houve diferença significante entre os grupos quanto à satisfação (p=0,832) e autoconfiança (p>0,999). Conclusões: satisfação e autoconfiança foram similares entre os grupos, e as duas estratégias poderão ser utilizadas na prática simulada do banho no leito.
FACTORS ASSOCIATED WITH PHYSICAL ACTIVITY LEVELS IN ADOLESCENTS
Authors: Furtado Amanda Regis , Sá Jennyfer Soares de , Andrade Gleice Kelli Santana de , Giacon-Arruda Bianca Cristina Giccone , Bomfim Rafael Aiello , Silva Dirceu Santos , Teston Elen Ferraz
Published: June 2023

ABSTRACT Objective: to analyze the factors associated with physical activity levels in adolescents. Method: cross-sectional, quantitative study, conducted with adolescents enrolled in two educational institutions in a capital of the midwest region of Brazil. Data collection occurred from April to October 2021, through a self-administered questionnaire composed of validated scales. The association between the variables was verified by logistic regression. Results: 219 adolescents participated in the study, with a mean age of 15.7 years, more than half were girls (52.5%) from medium economic class (51.1%); 55.3% were very active/active; 39.3% had low self-esteem; 17.8% were at risk for developing an eating disorder; 12.3% at risk for severe anxiety symptoms; and 13.3% at risk for moderate depression symptoms. The factors associated with the level of physical activity were self-esteem and risk for depression. Conclusion: Early screening of adolescents with low self-esteem and risk for symptoms of depression is proposed as an initial strategy to direct actions that encourage the practice of physical activity.
PERCEPÇÕES DE GRADUANDOS DE ENFERMAGEM ACERCA DOS DESAFIOS ENFRENTADOS PARA FORMAÇÃO NA PANDEMIA DA COVID-19
Authors: Lima Ana Carolina Bezerra de , Santos Danielle Christine Moura dos , Adamy Edlamar Kátia , Gomes Betânia da Mata Ribeiro
Published: June 2023

RESUMO Objetivo: Identificar e discutir os desafios enfrentados por graduandos de enfermagem de uma instituição de ensino superior pública durante a pandemia da COVID-19. Método: Estudo exploratório, transversal, quantitativo, realizado com graduandos de enfermagem de universidade pública, em Recife, Pernambuco, Brasil. A coleta de dados ocorreu entre julho de 2021 e fevereiro de 2022, mediante questionários exclusivamente digitais. Procederam-se às análises descritivas e aos testes estatísticos, como Kolmogorov-Smirnov, Qui-quadrado e teste exato de Fisher. Resultados: Participaram do estudo 112 graduandos de enfermagem, maioria do sexo feminino, idade média de 20,9 anos, cor/raça branca, solteira, sem filhos, com rendimento familiar de até três salários-mínimos. Os principais desafios foram: dificuldade na adaptação ao ensino remoto, alterações na rotina diária, distração com assuntos não discutidos nas aulas, medo e/ou ansiedade em relação à pandemia, dificuldade de apoio familiar, influência do isolamento social no interesse nas aulas, necessidade de programas institucionais de apoio financeiro e psicológico e incentivo governamental à divulgação de medidas contra o coronavírus. Desafios como dificuldade no manuseio de equipamentos tecnológicos e preocupações financeiras estiveram estatisticamente associados às variáveis posse de computador e notebook, qualidade de conexão à internet e ambiente de estudos privativo. Conclusão: O estudo suscitou reflexões que emergiram de um cenário de crise sanitária e educacional, indicando que a pandemia da COVID-19 provocou relevantes desafios para aprendizagem de estudantes de graduação em enfermagem.
O mosaico dos feminismos africanos: uma abordagem historiográfica de eras políticas
Authors: Lenine Enzo
Published: June 2023

Resumo A historiografia feminista tradicionalmente é narrada por meio de ondas, que demarcam momentos e agendas da mobilização das mulheres. Essa narrativa, porém, é centrada primariamente nas experiências euro-americanas. Alternativas a essa abordagem têm surgido recentemente como forma de conferir significado aos feminismos de outros lugares, em particular do Sul Global. Os feminismos africanos, mais especificamente, inovam sua historiografia ao chamar a atenção para o colonialismo como eixo analítico das experiências das mulheres do continente. Neste artigo, discuto a proposta de analisar os feminismos africanos a partir de eras políticas centradas no colonialismo. Discuto como as feministas africanas articulam suas interpretações acerca dos movimentos de mulheres no continente vis-à-vis esse eixo analítico e em cada uma das eras políticas. Com essa abordagem, argumento que os feminismos africanos são melhor compreendidos como feminismos em mosaico, dada sua diversidade e multiplicidade de agendas e demandas.
A Síndrome Respiratória Aguda Grave na pessoa idosa no contexto da pandemia da covid-19 e seus fatores associados
Authors: Mafra Tasso Kfuri Araújo , Stobbe Julio Cesar , Rabello Renata dos Santos , Lindemann Ivana Loraine , Silva Shana Ginar da
Published: June 2023

Resumo A Síndrome Respiratória Aguda Grave (SRAG) constitui-se como uma das doenças respiratórias mais preocupantes, sendo caracterizada por um quadro gripal associado à taquipneia ou à hipoxemia e saturação inferior a 95% em ar ambiente. No contexto da pandemia do novo coronavírus (SARS-CoV-2) observou-se um crescimento exponencial nos casos sendo a pessoa idosa o grupo populacional mais afetado. Diante do exposto, este estudo teve como objetivo descrever os casos de SRAG, assim como os fatores sociodemográficos e de saúde associados ao óbito na população idosa de um município do norte do estado do Rio Grande do Sul, Brasil. Trata-se de um estudo epidemiológico, realizado a partir da análise de dados do Sistema de Informação de Vigilância Epidemiológica da Gripe. As informações foram disponibilizadas pela Secretaria Municipal de Saúde do município de Passo Fundo entre 01 de janeiro a 31 de dezembro de 2020. A estatística descritiva compreendeu a distribuição das frequências absolutas (n) e relativas (%) das variáveis de interesse. Na análise dos fatores associados estimouse razões de odds brutas e ajustadas por meio da Regressão Logística. Foi observado um total de 1.268 notificações por SRAG em idosos, sendo 72% causadas pela covid-19. A letalidade observada foi alta (40,9%), principalmente entre homens e de baixa escolaridade, sendo a presença de algum fator de risco determinante para o óbito, destacando-se a doença renal crônica. Espera-se que as associações evidenciadas neste trabalho possam auxiliar nas políticas de saúde direcionadas à saúde da pessoa idosa, sobretudo pelo fortalecimento das ações na rede de atenção primária.
Experiences of older adult with chronic pulmonary disease using long-term home oxygen therapy in romantic and sexual relationships
Authors: Bueno Giovanna Hass , Campos Claudinei José Gomes , Turato Egberto Ribeiro , Paschoal Ilma Aparecida , Martins Luiz Cláudio
Published: June 2023

Abstract Objective To understand the meanings attributed by older adult with Chronic Obstructive Pulmonary Disease (COPD) using the Long-Term Home Oxygen Therapy (LTOT) regarding romantic relationships and sexual practice. Method Qualitative study in which seven semi-structured interviews were carried out with patients with a confirmed diagnosis of COPD and using LTOT, treated in an outpatient service. The content analysis technique was applied with the support of the WebQDA2.0 software license. COREQ criteria were used to report method and outcome. Results Two categories emerged: 1- Destabilization in the romantic relationship and in the sexual life of the LTOT user: : revealed that therapy causes relationship breakup, change of partner after prescription of the LTOT or even the idea of looking for an extramarital person; 2- Experience and meanings of COPD and oxygen therapy during sexual intercourse: suffering with physiological problems, how much the patient feels short of breath to have sexual intercourse and the impact of this on performance and frequency, reducing these moments with the partner. Conclusion The perception of elderly people with COPD using LTOT indicates that oxygen therapy had an impact on sexual practice and romantic relationships. Having good quality in relationships and sexual practice is a fundamental condition for health promotion.
Vivências de idosos com doença pulmonar crônica em uso de oxigenoterapia domiciliar prolongada no relacionamento amoroso e sexual
Authors: Bueno Giovanna Hass , Campos Claudinei José Gomes , Turato Egberto Ribeiro , Paschoal Ilma Aparecida , Martins Luiz Cláudio
Published: June 2023

Resumo Objetivo Compreender os significados atribuídos pela pessoa idosa com Doença Pulmonar Obstrutiva Crônica (DPOC) em uso da Oxigenoterapia Domiciliar Prolongada (ODP) referente ao relacionamento amoroso e a prática sexual. Método Estudo qualitativo, no qual foram realizadas sete entrevistas semidirigidas com pacientes com diagnóstico confirmado de DPOC e em uso de ODP, atendidos em serviço ambulatorial. A técnica de análise de conteúdo foi aplicada com o apoio do software WebQDA 2.0®. Os critérios COREQ foram usados para relatar o método e o resultado. Resultados Duas categorias emergiram: 1- Desestabilização no relacionamento amoroso e na vida sexual do usuário de ODP: revelou que a terapia causa perturbação nos relacionamentos, mudança de parceiro depois que foi prescrita a ODP ou até a ideia de procurar uma pessoa extraconjugal. 2- Vivência e significados da DPOC e da oxigenoterapia durante a relação sexual: o sofrimento com as questões fisiológicas, o quanto o paciente sente falta de ar para ter relação sexual e o impacto disso no desempenho e na frequência, diminuindo esses momentos com o parceiro Conclusão A percepção da pessoa idosa com DPOC em uso da ODP indica que a oxigenoterapia impactou sobre a prática sexual e nos relacionamentos amorosos. Ter boa qualidade nos relacionamentos e na prática sexual é condição fundamental para promover a saúde.
OS NÍVEIS DA LINGUAGEM: A TEORIA LINGUÍSTICA DE EUGENIO COSERIU
Authors: Marra Daniel
Published: June 2023

RESUMO Desde seus primeiros escritos de linguística geral, o linguista romeno Eugenio Coseriu, como o seu contemporâneo Noam Chomsky, ou mesmo Ferdinand de Saussure antes deles, delineou o conceito de conhecimento linguístico. Sua busca pelo refinamento desse conceito o levou a elaborar suas famosas distinções dos níveis da linguagem, que figuram entre suas contribuições mais importantes para a teoria linguística. Além de detalhar tais distinções, este artigo discute a visão do autor sobre a natureza, o conteúdo e a estrutura do conhecimento linguístico. Apresenta ainda algumas circunstâncias externas e internas a sua teoria que explicariam o desconhecimento generalizado de suas ideias no âmbito da linguística geral contemporânea, especialmente no mundo anglófono, diante de reivindicações recentes de que as contribuições originais de Coseriu poderiam ter dado um rumo diferente à linguística se meio século atrás o seu trabalho tivesse recebido a devida atenção. Finalmente, discute se Coseriu é um gênio negligenciado da linguística do século XX como frequentemente argumentam ex-alunos e devotos de sua teoria.
Endodontic techniques with Nickel Titanium instruments: analysis of quality and efficiency of instrumentation in primary molars
Authors: FERNANDES Maria Luiza da Matta Felisberto , MAIA Caroline Andrade , MAIA Gabriele Andrade , SANTOS Alice Machado Carvalho , PAIVA Saul Martins , FERNANDES Alexandre Moreira
Published: June 2023

ABSTRACT Objective: The purpose of the present in vitro study was to evaluate the efficiency of three different instruments in the root canals of artificial primary molars as well as the quality of the fillings. Methods: Sixty artificial primary molars were divided into three groups of 20 teeth. Each group was submitted to a different technique: Group 1 - conventional manual technique using Kerr files; Group 2 - manual technique with nickel-titanium files; Group 3 - NiTi rotary technique. The root canals were filled with calcium hydroxide paste. Aspects such as homogeneity of the fillings, taper and flowability of the preparations were considered comparatively to assess the quality of the instrumentations. The non-parametric Kruskal-Wallis and Mann-Whitney tests were used to compare the efficiency of the preparation of the root canal considering the preparation times of them. Results: All three techniques were equally effective at shaping the root canals of primary teeth. The working time was shorter with the rotary instrument (p=0.000). In the pairwise comparisons, working time was shorter with the rotary instrument compared to the manual techniques with steel files (p=0.000) and NiTi files (p=0.000). Comparing the manual techniques, the working time was shorter with NiTi files compared to steel files (p=0.011). Moreover, less variability in the preparation time was found when the rotary instrument was used. Conclusions: The mechanized rotary method led to a shorter operating time in comparison to the manual techniques and is therefore a preferable option for the preparation of the root canals of primary teeth.
Self-perception of aesthetic dental treatment: an integrative review
Authors: FERREIRA Priscylla Dias Fonseca , CAVALCANTE Vanessa Araújo , PEREIRA Raony Môlim de Sousa , VERDE Giselle Maria Ferreira Lima
Published: June 2023

ABSTRACT Objective: This study aimed to conduct a literature review on self-perception of oral aesthetics in individuals undergoing cosmetic dental treatment and its impact on quality of life. Methods: 834 articles were found, of these, 31 articles were selected and accessed from the scientific productions indexed in the PubMed, LILACS and SciELO electronic databases. To rescue the sample, the following descriptors were used in Portuguese: estética dentária, odontologia cosmética, autoimagem and autopercepção; and in English: dental esthetics, cosmetic dentistry, self-image and self-perception, from 2016 to 2021. Results: The articles highlighted the relationship between aesthetic self-perception and the need for treatment. It was found that the aesthetic and psychosocial self-perception had a positive impact, improving the self-esteem and quality of life of individuals after undergoing aesthetic dental treatments. Conclusions: The research considered that new studies should be carried out on this theme, and that dentists should seek more knowledge related to oral and general health conditions, as well as on the self-perception of oral aesthetics, in order to prepare them for the performance. of interventions and planning of curative actions.
Translucency and masking ability of a translucent zirconia with different thicknesses over dark backgrounds
Authors: MACHRY Renan Vaz , MAY Michele Mirian , CADORE-RODRIGUES Ana Carolina , JACQUES Letícia Borges , MAY Liliana Gressler
Published: June 2023

ABSTRACT Objectives: To evaluate the translucency, contrast ratio and masking ability of a translucent zirconia with different thicknesses. Methods: Disc shaped specimens (n= 3) with 10 mm (Ø) x 1.5 mm, 1 mm and 0.7 mm (thickness) were manufactured simulating all-ceramic simplified restorations. Substrate discs (n= 2; Ø: 10 mm; thickness: 2 mm) were simulated with composite resin shades: A2 (positive control) and C4; and metal alloys: silver (Ni-Cr) and golden (Cu-Al). Optical properties of the 9 translucent zirconia specimens placed on the 3 different substrates were analyzed by a spectrophotometer. The color variation (ΔE00) between each ceramic structure over the positive control substrate (A2) and over the dark backgrounds (C4, silvery, golden) were obtained as to their ceramic masking ability and subjected to non-parametric Kruskal Wallis test (5%). The translucency parameter (TP00) and contrast ratio (CR) of the different thicknesses of the ceramic discs were also collected and analyzed by one-way ANOVA and the Tukey test (5%). Results: The translucent zirconia showed greater opacity in the thickness of 1.5 mm, although it was not statistically different between 0.7 and 1.0 mm. All dark backgrounds significantly affected the final color of the simplified restoration in all evaluated thicknesses. However, the increase in ceramic thickness showed a decrease in ΔE00 values for all substrates. Conclusion: The translucent zirconia was not able to mask the dark substrates, independent of the evaluated thickness.
Mediation of the meaning of work on the relationship between leadership and performance, controlling the response bias
Authors: Leonardo Maria da Gloria Lima , Pereira Michelle Morelo , Freitas Clarissa Pinto Pizarro de , Valentini Felipe
Published: June 2023

Abstract Objective: Researchers have investigated the relationship between the meaning of work and variables related to work well-being. This study investigated the relationships between transformational leadership and job performance, and the mediation of the meaning of work in these relationships. Method: A total of 397 professionals of a Brazilian public university participated, answerin gforced-choice questionnaire. The relationship model between variables was tested using structural equations. In addition, the parameters of indirect effects of mediation were tested using bootstrap (100 resamples). Results: The results indicated that job performance levels were explained by transformational leadership. The meaning of work explained 86% of the relationship between the variables. Conclusion: The study contributes by presenting data of acquiescence control and in explaining the impact of variables on professionals’ job performance.
Aposentadoria: sobreviver ou se adaptar? Validação do racional de um programa de intervenção
Authors: Pinto Joana Carneiro
Published: June 2023

Resumo Objetivo: Este estudo apresenta os resultados da validação interna de um programa de preparação de transição e adaptação bem-sucedidas para um período de carreira pós-carreira de idosos. Método: Um grupo de 10 valiadores, especialistas orientação vocacional e desenvolvimento de carreira, foram inquiridos acerca da concordância com a associação entre cada atividade e as dimensões e tarefas de desenvolvimento do racional do programa. Resultados: Do total de 11 atividades que constituem o núcleo do programa, 8 foram unanimemente consideradas adequadas aos objetivos da intervenção; isto é, com relação direta ao racional teórico, nomeadamente às dimensões e respectivas tarefas desenvolvimentais. Conclusão: Os resultados obtidos demonstram uma boa aceitação do programa por parte dos avaliadores a quem ele foi apresentado.
Retirement: to survive or to adapt? Validation of the rationale of an intervention program
Authors: Pinto Joana Carneiro
Published: June 2023

Abstract Objective: This study presents the results of an internal validation of a successful transition and adaptation preparation for a post-career career program for senior adults. Method: A total of 10 judges, with in-depth knowledge in the field of vocational guidance and career development, were asked to decide about the congruence between a set of activities and the dimensions and the development tasks that constitute the rationale of the program. Results: Out of the total of 11 activities that make up the core of the program, eight were unanimously considered to be adequate for the intervention’s objectives, that is, in direct relation to the theoretical rationale, namely the dimensions and relevant development tasks. Conclusion: The results obtained demonstrate a good acceptance of the program by the judges to whom it was presented.
Levantamento do perfil de supervisores clínicos de terapia cognitivo-comportamental no Brasil
Authors: Barletta Janaína Bianca , Araújo Robson Medeiros de , Neufeld Carmem Beatriz
Published: June 2023

Resumo Objetivo: Esta pesquisa teve por objetivo identificar o perfil de supervisores de Terapia Cognitivo-Comportamental no país e conhecer sua formação para exercer essa atividade profissional. Método: Foi realizado um survey online em âmbito nacional com 180 supervisores de Terapia Cognitivo-Comportamental, sendo 73,8% do sexo feminino, com a média de idade de 40,3 anos (DP = 10,03). Resultados: Entre os principais resultados, ressalta-se a intensa formação acadêmica, treinamento para prática psicoterápica e tempo de experiência clínica (12,6 anos, DP = 7,64) e supervisionada (7,4 anos, DP = 7,26). Apenas 27,8% dos participantes indicaram treinamento específico para supervisor e houve uma lacuna de indicativos de treinamentos de recursos para supervisões remotas. Conclusão: Considera-se essa a primeira pesquisa a traçar o perfil de supervisores de Terapia Cognitivo-Comportamental no Brasil, ampliando o olhar para esta atividade profissional.
Orientação a Pais por Chamadas de Áudio Durante a Pandemia de Covid-19
Authors: Alvarenga Patrícia , Soares Zelma Freitas , Silva Antonio Carlos Santos da , Coutinho Débora Gomes Valois , Freitas Luna Maiana Araújo
Published: June 2023

Resumo O distanciamento social ocasionado pela pandemia de Covid-19 levou a profundas mudanças na rotina das famílias com crianças pequenas, aumentando o estresse no ambiente doméstico. Este estudo analisou a experiência de planejamento e implementação de um projeto de extensão universitária que ofereceu orientação a pais com filhos de 0 a 11 anos por meio de chamadas de áudio durante a pandemia. O protocolo de atendimento foi desenvolvido para atender às necessidades de famílias de baixa renda e listava problemas específicos relacionados ao confinamento em casa e ao fechamento das escolas seguidos por uma variedade de estratégias de enfrentamento. A análise de 223 queixas relatadas pelos usuários em 130 ligações revelou que 94% dos problemas referidos pelos pais foram contemplados pelo protocolo de atendimento e estavam relacionados aos problemas externalizantes (39%) ou internalizantes (26%) das crianças ou ao declínio do bem-estar subjetivo dos pais (29%). Serviços de apoio devem orientar os pais quanto ao uso de práticas responsivas e assertivas que promovam o bem-estar emocional da criança e estabeleçam expectativas comportamentais em contextos estressantes. A diminuição dos conflitos entre pais e filhos resultante do uso dessas estratégias tende a reduzir o sofrimento dos pais, aumentando sua sensação de bem-estar subjetivo. Recomenda-se ampla divulgação dessas iniciativas e seguimento dos casos.
O noblesse oblige do indivíduo soberano. Sobre a Genealogia da moral de Nietzsche
Authors: Pietropaoli Matteo
Published: June 2023

Resumo: Este artigo pretende enfrentar a figura nietzschiana do indivíduo soberano, explicitamente referida no livro Para a genealogia da moral. Esta referência, que certamente tem um vínculo profundo com toda a reflexão de Nietzsche, desde as “considerações extemporâneas” até o Zaratustra e além, não só nos permite questionar a concepção difundida do indivíduo em sua relação com o bem e o mal, como também com a moral em geral, mas manifesta uma compreensão da realidade tão profunda, na relação entre autonomia e ética, entre vida e verdade, que uma época de relativismo imperante, de niilismo não superado, não pode simplesmente ignorar.
Análise não linear pela reconstrução do espaço de fase de vozes saudáveis de idosos
Authors: Fernandes Luana Alves , Marino Viviane Cristina de Castro , Spazzapan Evelyn Alves , Galdino Débora Godoy , Teles Lídia Cristina da Silva , Montagnolli Arlindo Neto , Kakuda Debora Sayuri , Fabbron Eliana Maria Gradin
Published: June 2023

RESUMO Objetivo Verificar medidas acústicas das vozes de idosos pela análise não linear e realizar a comparação entre os sexos. Método Participaram 29 idosos, falantes do Português Brasileiro, vocalmente saudáveis: 14 homens e 15 mulheres. Todas as vozes foram julgadas como vocalmente saudáveis por três fonoaudiólogas treinadas, por meio de avaliação perceptivo-auditiva. A análise acústica não linear foi realizada pela análise da Reconstrução de Espaço de Fase utilizando o programa Análise de Voz. Resultados Foi observado diferença significativa no parâmetro irregularidade (p=0,001) e espaçamento (p=0,005) entre os sexos, com resultados piores no grupo masculino. Enquanto 93% das vozes masculinas apresentaram graus 2 ou 3 de irregularidade, estes graus foram observados em 53% das vozes femininas. Em 78,6% das vozes masculinas foi observado espaçamento de médio a grande, fato observado somente em 26,7% das mulheres. Conclusão Os resultados da análise não linear, por meio da REF, com a utilização do protocolo CIE, em vozes de idosos, mostraram o melhor resultado quanto ao número de curvas (quatro ou mais). Em relação à irregularidade do traçado, nos homens, a maioria apresentou graus 2 e 3 e nas mulheres, a metade apresentou grau 1. Relativo ao espaçamento, 78,6% das vozes masculinas foi observado espaçamento de médio a grande, fato observado somente em 26,7% das mulheres. Houve diferença entre os sexos nos achados vocais de idosos pelo protocolo CIE com a análise de Reconstrução de Espaço de Fase, apontado piores resultados na irregularidade e espaçamento na população masculina, o que sugere maior aperiodicidade vocal em homens idosos.
Quality of life of children benefited by the Futsal Social/UJR-Feevale, according to age and sex
Authors: Sbrissa Douglas Zanella , Renner Jacinta Sidegum , Berlese Denise Bolzan
Published: June 2023

ABSTRACT Sports as a tool for social transformation helps in the development of children, improving their quality of life. This study aimed to analyze, using the KIDSCREEN-52 tool, the HRQoL (Healf Related Quality of Life) of 252 children aged between 8 and 12 years old, beneficiaries of the socio-sporting project Futsal Social, with a breakdown by sex and age. The results were tabulated in an SPSS spreadsheet, version 26.0. The Kolmogorov-Smirnov test was used to test normality, and ANOVA was used for variable association. The overall mean HRQoL score indicated a good perception of the quality of life. The lowest mean score was found in dimension 7 (financial aspects) with 63±21 points. Conclusion: In general, the investigated children presented a good perception of HRQoL.
Chloride ion penetration resistance in concretes produced with recycled fine aggregates and silica fume
Authors: Henriques Renata Leal , Athayde Priscylla Botelho , Magalhães Aldo Giuntini de , Magalhães Thiago Abdala , Andrade Fabrício Vieira de
Published: June 2023

Abstract The use of by-products and recyclable materials in the production of concrete has become an interesting alternative to mitigate environmental impacts, especially those generated by the construction industry, as long as their mechanical and durability properties do not early compromise the service life of the structures. The resistance of concrete to the penetration of harmful agents, such as chloride ions, is an important property since it directly correlates with the performance, integrity, and durability of reinforced concrete structures. This study evaluate four concrete mixes were cast for aggressiveness class III of NBR 6118 [1] produced with 8% of partial replacement of Portland cement with silica fume, resulting of metallurgical production, and with 30% partial replacement of natural fine aggregates by recycled fine aggregate from fresh concrete waste, obtained from the concrete production process in concrete mixer trucks. At 28 days of age, the specimen was submitted to capillarity, mechanical resistance and chloride migration tests, according to the NT BUILD 492 standard [2]. In general, the results indicated that the proposed replacements improved mechanical properties and chloride ion penetration resistance, mainly with the incorporation of silica fume.
DESIGN AND ANALYSIS OF METAMATERIAL LOADED STACKED MICROSTRIP PATCH ANTENNA FOR WIMAX APPLICATIONS
Authors: Reddy Ambavaram Pratap
Published: June 2023

The design and analysis of a microstrip patch antenna for WiMAX applications is carried out with the help of metamaterial and a stacked antenna fed with proximity coupling. A square split ring resonator metamaterial is used at the feed location to improve the performance of the conventional radiating patch. The μ-negative metamaterial antenna is designed at 3.82 GHz. The proposed metamaterial
antenna provides a -56 dB return loss and 5.06 dbi improved gain, and the VSWR is very much nearer to 1. CSTMW 2018 was used to model the simulation outcomes, such as radiation, voltage standing wave ratio, gain, and return loss, and also to observe the simulation characteristics of the metamaterial. After that, the stacking method is proposed for bandwidth enhancement. The bandwidth is enhanced
from 3.7 to 3.9 GHz.The gain improved from 5.06 to 7.09 dB. The proposed antenna's results were found to be well suited for WiMAX applications.
Breakthrough time assessment of liner system for MSW landfills with high leachate heads
Authors: Xie H. , Wu J. , Zhan L. , Bouazza A. , Shi Y. , Chen Y. , Lan J.
Published: June 2023

This paper presents a design method for liner systems of municipal solid waste (MSW) landfills with high leachate heads based on the breakthrough time of an indicative contaminant (Chloride). The performance of liner systems with varying thicknesses of compacted clay liner and attenuation layer was assessed. The single composite liner consisting of a geomembrane and a 0.75-thickness compacted clay liner can meet the 50-year breakthrough time requirement of the liner system for cases with the thickness of the attenuation layer >3 m and the average height of waste HD < 60 m. The double liner system consisting of two geomembranes with one single 0.3 m-thickness compacted clay liner, as proposed in the Chinese landfill standards, cannot meet the 50-year breakthrough time requirement of the liner system, especially for large-scale landfills (e.g. HD > 60 m). The double composite liner with two composite liners consisting of a geomembrane and a 0.3 m-thickness compacted clay liner can be used for a landfill with an average height of over 60 m. Different liner systems for other cases with different average design heights of waste and the thickness of the attenuation layer were proposed. They can be easily used for MSW landfills with high leachate heads.
Are you responsible and accountable for your actions?
Authors: Sykes Leanne , Shaik S , Bradfield Charles
Published: June 2023

In all walks of life we are accountable for our actions. However in dentistry the scope and extent of one’s responsibilities may not always be obvious. This paper aims to remind clinicians of their need to be cognisant of some fundamental principles, and to ask themselves certain relevant questions before embarking on any procedure. It makes special reference to the obligations associated with the increased use of dental imaging modalities. It does not purport to be a comprehensive review into any specific dental condition or treatment modality, but is rather a broad overview and reminder of their ethical obligations with respect to their “duty of care”.
Morphological variations of two cases of maxillary myofibromas
Authors: Gounden Tashen , Adam Razia Z , Mdlalose Lindubuhle
Published: June 2023

The aim of this case report is to depict the varied spectrum of clinical presentation of two cases of solitary myofibromas, one of which was intra-osseous whilst the other presented as a soft tissue lesion. This highlights the spectrum of the clinical presentation of the same pathology. In the most recent World Health Organisation (WHO) 2022 classification of soft tissue tumours, myofibroma is included under the category of myopericytomas. Myopericytoma is a distinctive perivascular myoid neoplasm that forms a morphological spectrum with myofibroma. Molecular evidence has revealed PDGFRB (platelet-derived growth factor receptor beta) mutations in myopericytoma and myofibroma as well as SRF-RELA gene fusions in both lesions confirming a common pathogenesis for both.1 Myofibromas are benign soft tissue neoplasms derived from myofibroblastic cells.2 The term myofibroma refers to a solitary lesion. Myofibromatosis refers to cases in which multiple lesions are present which may affect either one or multiple anatomical locations. Myofibromatosis is almost exclusively seen in young children under the age of 2-years. Myofibromas exhibit a wide age range of clinical presentation and may be present at birth or arise within the first two years of age, but may also present in adults with a significant male predominance. Solitary myofibromas have a predilection to occur in the oral cavity, skin or subcutis of the head, neck and trunk.
Duyuşsal Bileşenler Açısından Problem Kurmaya Yönelik SSCI İndeksli Çalışmaların İncelenmesi esi
Authors: GEREZ CANTİMER Gülşah , ŞENGÜL Sare
Published: June 2023

Problem kurma etkinlikleri, yaratıcı düşünmeye teşvik ettiği ve mevcut bilginin kullanımını sağladığı için öğrencilerin matematik kavramlarını anlamalarında önemli rol oynamaktadır. Öğrencilerin duyuşsal özelliklerinin matematik başarısı başta olmak üzere matematik öğrenme çıktılarını şekillendirdiği düşünüldüğünde problem kurma çalışmalarını duyuşsal bileşenler açısından ele alan çalışmaların bütünsel olarak incelenme gereksinimi ortaya çıkmaktadır. Bu doğrultuda araştırmanın amacı; SSCI indeksli dergilerde duyuşsal bileşenler açısından problem kurmaya yönelik yayımlanan çalışmaların genel özellikleri, amaç ve sonuçlarının sistematik derleme yoluyla incelenmesidir. Araştırmada duyuşsal bileşenleri içeren problem kurma araştırmalarının amaçlarından sonuçlarına kadar genel çerçeveleri çıkarılarak genel eğilimleri betimlenmiş ve değerlendirmeleri yapılmıştır. Çalışmada Web of Science veri tabanı kullanılmış ve anahtar kelimeler “problem posing (problem kurma), mathematics (matematik), attitude (tutum), self-efficacy (öz yeterlilik), affective factors (duyuşsal faktörler), motivation (motivasyon)” olarak belirlenmiştir. Çalışma kapsamında 19 dergi/kitap/kitap bölümüne ulaşılmıştır. Ulaşılan kaynaklardan 15 makale, 7 bildiri ve 2 adet kitap/kitap bölümü olmak üzere toplam 24 çalışma incelenmiştir. Çalışmaların çoğunlukla 2018-2020 yılları arasında yayımlandığı; problem kurma ile incelemeye alınan duyuşsal bileşenler; “tutum, öz yeterlilik, motivasyon, kaygı ve duyuşsal faktörler” olmak üzere çoğunlukla tutum (f=10) üzerinde çalışıldığı, öz yeterlilik (f=6) ve motivasyonun (f=4) ise tutum çalışmalarını niceliksel olarak izlediği; çoğunlukla öğrencilerle çalışıldığı (f=19) ve nicel araştırma yöntemlerinin daha fazla tercih edildiği (f=13) belirlenmiştir. Çalışmalarda problem kurmanın tutum, öz yeterlilik, kaygı ve motivasyon üzerindeki etkisi incelenmiştir. Çalışmaların amaç ve sonuçlarına göre dağılımları detaylı olarak incelenerek elde edilen çıktılara göre önerilerde bulunulmuştur.