Búsqueda | SciELO

Necesita ayuda?

Añadir un campo +

Historico de búsqueda

No se encontraron documentos para su búsqueda

Resultados: 2 666

fatigue

Filtros

Colección + Opciones

Todos
Brasil

1396
Colombia

188
España

141
Chile

130
Cuba

129
Rve

111
Sudáfrica

109
Portugal

105
México

84
Salud Pública

83
Argentina

42
Perú

34
Costa Rica

31
Venezuela

21
Bolivia

16

Mostrar todos...

Revista + Opciones

Todos
Revista Brasileira de Medicina do Esporte

170
Materials Research

80
Arquivos de Neuro-Psiquiatria

62
Matéria (Rio de Janeiro)

60
Revista Brasileira de Enfermagem

46
Revista Brasileira de Cineantropometria & Desempenho Humano

42
Revista Latino-Americana de Enfermagem

42
Revista da Escola de Enfermagem da USP

42
Motriz: Revista de Educação Física

38
Latin American Journal of Solids and Structures

37
Acta Paulista de Enfermagem

36
Fisioterapia em Movimento

34
Cadernos de Saúde Pública

28
Revista da Associação Médica Brasileira

25
Arquivos Brasileiros de Cardiologia

23

Mostrar todos...

Idioma + Opciones

Todos
Portugués

847
Español

693
Inglés

426
Africaner

2

Año de publicación + Opciones

Todos
2022

226
2023

196
2021

184
2020

181
2024

157
2019

156
2018

149
2017

144
2014

134
2012

130
2013

129
2016

128
2015

111
2010

105
2011

103

Mostrar todos...

SciELO Áreas Temáticas + Opciones

Todos
Ciencias de la Salud

1937
Ingenierias

488
Humanidades

151
Ciencias Biológicas

71
Ciencias Sociales Aplicadas

62
Ciencias Agrícolas

53
Ciencias Exactas y de la Tierra

42
Multidisciplinaria

32
Lingüistica, Letras y Artes

6

WoS Áreas Temáticas + Opciones

Todos
Sciences

577
Engineering

466
Medicine

414
Health

363
Multidisciplinary

350
Sport

344
General

255
Internal

255
Services

253
Science

225
Enfermería

201
Materials

189
Metallurgical

188
Metallurgy

188
Fisiología

180

Mostrar todos...

WoS Indice de Citaciones + Opciones

Todos
Science Citation Index Expanded

1099
Social Sciences Citation Index

383
Arts Humanities Citation Index

31

Citables y no citables + Opciones

Todos
Citable

2637
No citable

24

Tipo de literatura + Opciones

Todos
Artículo

2358
Artículo de revisión

163
Informe de caso

83
Comunicación rápida

26
Otros

12
Informe breve

9
Editorial

8
Artículo-comentario

3
Resumen

2
Carta

1
Comunicado de prensa

1

Ordenar por

Página de 178 Próxima

Seleccionar esta página

Imprimir | Enviar por correo-e | Exportar |

Facebook
Twitter
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

0 Itens seleccionados

Listar itens
Limpiar lista

Ortopedia Prequirúrgica Utilizando Flujos Digitales en Recién Nacido con Labio y Paladar Hendido
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics

Villarreal-Martínez, Katia

; Torre-Delgadillo, Gabriela Garrocho-Rangel, José Arturo Márquez-Preciado, Raúl Fernández-del-Rosal, Hilda Claudian Rosales-Berber, Miguel Ángel

International journal of odontostomatology

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Mar 2025, Volumen 19 Nº 1 Paginas 60 - 64

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT: Cleft lip and palate is a congenital malformation, present at birth caused by an alteration in the fusion of tissues, which occurs between the sixth and tenth week of intrauterine life. Babies with cleft lip and palate have difficulty in generating suction, which causes negative consequences such as fatigue during breastfeeding, prolonged feeding times, alterations in growth and development and malnutrition. Pre-surgical orthopedics allows stimulation and bone remodeling of the cleft nasal, alveolar and palatal segments, decreasing the size of the clefts and favoring feeding during the first 3 months of life, before cleft lip and palate surgery. The present clinical case is of a 27-day-old female patient with cleft lip and palate and severe malnutrition, to whom a palatal obturator was placed to favor suction, thus substituting feeding by nasogastric tubes, for which a digital intraoral scanner (Trios 3, 3Shape A/S) was used to take impressions of the entire upper jaw, The data was then sent to a stereolithographic 3D printer (250 mW laser, Form2, Formlabs) to fabricate a resin model where the obturator plate was made manually with the conventional drip technique in the laboratory.

RESUMEN: Las fisuras labiopalatinas son una malformación congénita, presente en el nacimiento producida por una alteración en la fusión de los tejidos, que se presenta entre la sexta y la décima semana de vida intrauterina. Los bebés con fisura labio palatina tienen dificultad para generar succión, lo que provoca consecuencias negativas como la fatiga durante el amamantamiento, tiempos de alimentación prolongados, alteraciones del crecimiento y desarrollo y desnutrición. La ortopedia prequirúrgica permite la estimulación y remodelación ósea de los segmentos nasales, alveolares y palatinos fisurados, disminuyendo el tamaño de las fisuras y favoreciendo la alimentación durante los 3 primeros meses de vida, antes de la cirugía de labio y paladar hendido. El presente caso clínico es de una paciente femenina de 27 días de nacida con labio y paladar hendido y desnutrición severa, a la cual se le colocó un obturador palatino para favorecer la succión, sustituyendo así la alimentación por sondas nasogástricas, para lo cual se utilizó un escaner digital intraoral (Trios 3, 3Shape A/S) para la toma de impresión del maxilar superior completo, lo que permite que las impresiones sean menos estresantes y evitar posibles complicaciones, posteriormente los datos se enviaron a una impresora 3D estereolitográfica (láser de 250 mW, Form2, Formlabs) para fabricar un modelo de resina donde se realizó manualmente con la técnica convencional de goteo en el laboratorio la placa obturadora.

Nonlinear analysis of reinforced concrete shells and the compressive membrane action on bridge deck slabs
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Fernandes, Beatriz da Costa

; Silva, Jordlly Reydson de Barros

; Horowitz, Bernardo

Revista IBRACON de Estruturas e Materiais

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2025, Volumen 18 Nº 2 elocation e18201

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Existem problemas de cascas de concreto onde é imprescindível analisar as tensões das armaduras na fissura, como a verificação do Estado Limite Último de fadiga em lajes de tabuleiros de pontes e abertura de fissuras em reservatório de água. Em vista disso, este trabalho apresenta o modelo numérico denominado Modelo de Casca Fissurada (Cracked Shell Model – CSM), que possibilita determinar as tensões nas armaduras ortogonais de elementos de casca de concreto armado. O CSM utiliza o método lamelar, onde a espessura do elemento de casca é discretizada em lamelas de concreto sujeitas a um estado plano de tensões. As armaduras são avaliadas a partir do Modelo de Membrana Fissurada (Cracked Membrane Model - CMM), que considera o amolecimento do concreto à compressão e o efeito de enrijecimento à tração via Modelo de Banzo Tracionado (Tension Chord Model - TCM). A validação do CSM foi realizada com dados experimentais e numéricos de cascas disponíveis na literatura, no qual o modelo mostrou ser capaz de prever o comportamento completo de elementos de casca de concreto armado, com boa precisão e baixo custo computacional. Adicionalmente, foi conduzido um estudo sobre o Efeito de Membrana Comprimida em lajes de tabuleiro de pontes, o qual tende a aumentar a capacidade resistente dessas lajes. Com este estudo pode-se observar que o CSM, apesar do bom desempenho apresentado na fase de validação, por está baseado na teoria de placas finas de Kirchhoff (prática usual em muitos projetos) não conseguiu capturar esse efeito, subestimando a carga última, em média em 44%, em relação à ensaios experimentais. Esse artigo visa contribuir para o desenvolvimento de modelos numéricos de cascas de concreto armado, em problemas onde a tensão máxima da armadura é fundamental.

Abstract There are reinforced concrete problems where it is essential to analyze the reinforcement stresses at the crack, such as verifying the Fatigue Limit State in bridge deck slabs and crack opening in water tanks. In view of this, this work presents a numerical model called Cracked Shell Model (CSM), which enables the determination of stresses in the orthogonal reinforcement of concrete shell elements. The CSM uses the layered method, where the thickness of the shell element is discretized into concrete layers subjected to a plane stress state. The reinforcements are evaluated using the Cracked Membrane Model (CMM), which considers the compression softening of concrete and the tension stiffening effects via the Tension Chord Model (TCM). The validation of the CSM was carried out with experimental and numerical shell data available in the literature. It has been shown to be capable of predicting the complete behavior of reinforced concrete shell elements, with good accuracy and low computational cost. Additionally, a study was conducted on the Compressive Membrane Action (CMA) on bridge deck slabs, which tends to increase the load capacity of these slabs. With this study it can be observed that the CSM, despite the good performance presented in the validation phase, as it is based on Kirchhoff thin plate theory (usual practice in many projects) failed to capture this effect, underestimating the ultimate load by an average of 44% in relation to experimental tests. This article aims to contribute to developing numerical models of reinforced concrete shells, in problems where the maximum reinforcement stress is essential.

https://doi.org/10.1590/s1983-41952025000200001

Safety of two-dose schedule of COVID-19 adsorbed inactivated vaccine (CoronaVac; Sinovac/Butantan) and heterologous additional doses of mRNA BNT162b2 (Pfizer/BioNTech) in immunocompromised and immunocompetent individuals
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Miyaji, Karina Takesaki

; Ibrahim, Karim Yaqub

; Infante, Vanessa

; Moreira, Raquel Megale

; Santos, Carolina Ferreira dos Belizário, Juliana de Cássia Pinto, Maria Isabel de Moraes Marinho, Ana Karolina Barreto Berselli Pereira, Juliana Marquezi Mello, Liliane Saraiva de Silva, Vitor Gabriel Lopes da Sato, Paula Keiko Strabelli, Tânia Mara Varejão Ragiotto, Lucas Pacheco, Pedro Henrique Theotonio de Mesquita Braga, Patricia Emilia Loch, Ana Paula Precioso, Alexander Roberto Sartori, Ana Marli Christovam França, João Ítalo Lima, Marcos Alves de Ando, Mauricio Cesar Sampaio Rodrigues, Camila Cristina Martini Song, Alice Tung Wan Lara, Amanda Nazareth Belizário, Ana Cristina Lima, Anna Helena Simões Bortulucci de Zanetti, Ariane Cristina Barboza Paulo, Audrey Rose da Silveira Amancio de Rosa, Barbara Miranda dos Santos Moraes, Bruna Del Guerra de Carvalho Oliveira, Bruna Ribeiro de Picone, Camila de Melo Aranda, Carolina Sanches Troli, Carolinne Paioli Kokron, Cristina M. Terrabuio, Debora Raquel Benedita Abdala, Edson David Neto, Elias Nakanishi, Érika Yoshie Shimoda Lima, Fabiana Mascarenhas Souza Firmino, Fabio Batista Santos, Fernanda Barone Alves dos Bacal, Fernando Fatobene, Giancarlo Santana, Jaqueline Oliveira Kalil, Jorge Barbosa, Julia Gonçalves, Leandro Peres Otuyama, Leonardo Jun Pierrotti, Ligia Camera Compte, Livia Caroline Mariano Marinho, Livia Chaer, Livia Netto Seguro, Luis Fernando Azevedo, Luiz Sergio Ueda, Márcia Aiko Terreri, Maria Teresa Barros, Myrthes Anna Maragna Toledo Grecco, Octávio Sejas, Odeli Nicole Encinas Musqueira, Priscila Tavares Ito, Raquel Keiko de Luca Teixeira, Samia Silveira Souza Fidalgo, Serafim Costa, Silvia Figueiredo Campos, Silvia Vidal Fernandes, Tamiris Hinsching Rocha, Vanderson Geraldo Coelho, Vivian Caso

Revista do Instituto de Medicina Tropical de São Paulo

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2025, Volumen 67 elocation e2

Resumen: En | Texto: En | PDF: En

ABSTRACT Immunocompromised individuals were considered high-risk for severe disease due to SARS COV-2 infection. This study aimed to describe the safety of two doses of COVID-19 adsorbed inactivated vaccine (CoronaVac; Sinovac/Butantan), followed by additional doses of mRNA BNT162b2 (Pfizer/BioNTech) in immunocompromised (IC) adults, compared to immunocompetent/healthy (H) individuals. This phase 4, multicenter, open label study included solid organ transplant and hematopoietic stem cell transplant recipients, cancer patients and people with inborn errors of immunity with defects in antibody production, rheumatic, end-stage chronic kidney or liver disease, who were enrolled in the IC group. Participants received two doses of CoronaVac and additional doses of mRNA BNT162b2. Adverse reactions (AR) data were collected within seven days after each vaccination. Serious adverse events and of special interest (AESI) were monitored throughout the study. We included 241 immunocompromised and 100 immunocompetent subjects. Arthralgia, fatigue, myalgia, and nausea were more frequent in the IC group after CoronaVac. Following the first additional dose of mRNA BNT162, pain, induration, and tenderness at injection site, fatigue and myalgia were more frequent in the H group. A heart transplant recipient had a graft rejection temporally associated with the second CoronaVac dose, but there was no literature evidence of causal association. Four cases of AESI were considered related to the vaccine: three erythema multiforme after CoronaVac, all in IC participants, and one paresthesia after mRNA, in a H participant. Our findings were comparable to other studies that evaluated the safety of COVID-19 vaccines in different immunocompromised populations. Both vaccines were safe for immunocompromised participants.

https://doi.org/10.1590/s1678-9946202567002

Prevalent symptoms and characteristics of the Long COVID-19 population: a scoping review
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Prediger, Karina Marques

; Ribeiro, Ana Cristina

; Uehara, Sílvia Carla da Silva André

Revista Latino-Americana de Enfermagem

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2025, Volumen 33 elocation e4479

Resumen: Pt En Es | Texto: Pt En Es | PDF: Pt | PDF: En | PDF: Es

Objetivo: mapear a literatura científica sobre as características clínicas e demográficas da COVID Longa. Método: trata-se de uma revisão de escopo baseada nos princípios preconizados pelo JBI e as diretrizes do PRISMA para a extração dos dados, realizada a partir de quatro bases de dados. Utilizou-se a estratégia PCC para a coleta de dados, sendo os resultados descritos e diagramados. A seleção dos estudos foi realizada após a remoção de duplicatas, avaliação individual e em pares. Resultados: uma análise dos 13 artigos selecionados mostraram que a COVID Longa atinge todas as faixas etárias e pessoas de ambos os sexos, apresentando uma multiplicidade de sintomas, como fadiga (61,5%), dispneia (46,1%), alterações no olfato e/ou paladar (38,6%), ansiedade (15,3%) e comprometimento cognitivo (30,7%). No sexo feminino foi identificado risco aumentado para desenvolver COVID Longa. Conclusão: a identificação dos sintomas prevalentes na COVID Longa contribuem na estratégia de saúde pública, para o diagnóstico e assistência às pessoas acometidas pela doença. Recomenda-se estudos futuros sobre a abordagem da persistência dos sintomas na COVID Longa e a relação da adesão ao esquema vacinal contra a COVID-19, sexo, raça/etnia, grau de susceptibilidade nas diferentes faixas etárias, nível de escolaridade e renda além das comorbidades mais recorrentes na população.

Objective: to map the scientific literature on the clinical and demographic characteristics of Long COVID-19. Method: this is a scoping review based on the principles recommended by the JBI and the PRISMA guidelines for data extraction, carried out on four databases. The PCC strategy was used for data collection, and the results were described and diagrammed. The studies were selected after removing duplicates, individual and peer review. Results: an analysis of the 13 articles selected showed that Long COVID affects all age groups and people of both sexes, presenting a multiplicity of symptoms, such as fatigue (61.5%), dyspnea (46.1%), changes in smell and/or taste (38.6%), anxiety (15.3%) and cognitive impairment (30.7%). Females were found to be at increased risk of developing Long COVID. Conclusion: identifying the symptoms prevalent in Long COVID contributes to public health strategies for diagnosing and assisting people affected by the disease. Future studies are recommended on the approach to the persistence of symptoms in Long COVID and the relationship between adherence to the vaccination schedule against COVID-19, gender, race/ethnicity, degree of susceptibility in the different age groups, level of education and income, as well as the most recurrent comorbidities in the population

Objetivo: mapear la literatura científica sobre las características clínicas y demográficas de la COVID prolongada. Método: se trata de una revisión de alcance basada en los principios recomendados por el JBI y las directrices del PRISMA para la extracción de datos, realizada a partir de cuatro bases de datos. Se utilizó la estrategia PCC para la recolección de datos, siendo los resultados descritos y diagramados. La selección de los estudios se realizó después de la eliminación de duplicados, evaluación individual y en pares. Resultados: un análisis de los 13 artículos seleccionados mostró que la COVID prolongada afecta a todas las franjas etarias y a personas de ambos sexos, presentando una multiplicidad de síntomas, como fatiga (61,5%), disnea (46,1%), alteraciones en el olfato y/o gusto (38,6%), ansiedad (15,3%) y deterioro cognitivo (30,7%). En el sexo femenino se identificó un mayor riesgo de desarrollar COVID prolongada. Conclusión: la identificación de los síntomas prevalentes en la COVID prolongada contribuye a la estrategia de salud pública, para el diagnóstico y asistencia a las personas afectadas por la enfermedad. Se recomiendan estudios futuros sobre el abordaje de la persistencia de los síntomas en la COVID prolongada y la relación de la adherencia al esquema de vacunación contra la COVID-19, sexo, raza/etnia, grado de susceptibilidad en las diferentes franjas etarias, nivel educativo e ingresos, además de las comorbilidades más frecuentes en la población.

https://doi.org/10.1590/1518-8345.7353.4479

Evaluation of strength, wear, and skid resistance in pavement quality concrete with partial replacement of steel slag
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Bibitha, Lillypushpam

; Durgalakshmi, Sagayakannan

; Athiappan, Kamalasekar

Matéria (Rio de Janeiro)

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2025, Volumen 30 elocation e20240636

Resumen: En | Texto: En | PDF: En

ABSTRACT Sustainable pavement construction is essential for promoting ecological balance and reducing the environmental impact of infrastructure projects. This study investigates the viability of partially replacing conventional fine aggregate (river sand) with steel slag in proportions ranging from 10% to 100% by volume for pavement quality concrete (PQC). The mechanical properties of PQC were evaluated following IRC standards, with a focus on compressive strength, flexural strength, split tensile strength, and fatigue performance. Additionally, the study assessed the concrete’s abrasion resistance and skid resistance, critical for ensuring durability and road safety. The experimental results demonstrated that incorporating steel slag as a fine aggregate replacement significantly enhances the mechanical performance of PQC. A mix containing 40% steel slag exhibited optimal improvements in compressive, flexural, and tensile strengths, alongside superior resistance to wear and skid. These findings indicate that steel slag, when used in appropriate proportions, can enhance both the durability and safety of concrete pavements. The study highlights the potential of steel slag as a sustainable and resource-efficient alternative to conventional materials in pavement construction, contributing to environmental sustainability and improved infrastructure performance.

https://doi.org/10.1590/1517-7076-rmat-2024-0636

Desvantagem, fadiga vocal e qualidade de vida em voz em pacientes com Esclerose Múltipla
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santiago, Raí dos Santos

; Araújo, Jaya Miranda Carvalho de

; Nascimento, Márcia Helena Cassago

; Anhoque, Carolina Fiorin

; Neves, Alana Tagarro

; Depolli, Gabriel Trevizani

; Castrillo, Bruno Batitucci

; Dias, Paula Zago Melo

; Vanzo, Regina Eliza Albano

; Nascimento, Carla Carvalho

; Barauna, Valerio Garrone

; Rodrigues, Lívia Carla de Melo

CoDAS

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2025, Volumen 37 Nº 1 elocation e20230320

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT Purpose to describe sociodemographic characteristics of individuals with multiple sclerosis and correlate and compare vocal fatigue, voice handicap, and voice-related quality of life of individuals with and without the disease. Methods Cross-sectional, quantitative study with 52 volunteers with multiple sclerosis and 52 control volunteers, matched by sex, age, and education level. Sociodemographic and clinical data were collected through a questionnaire and medical record analysis. Participants responded to the reduced Voice Handicap Index (VHI-10), Vocal Fatigue Index (VFI), and Voice-Related Quality of Life (V-RQOL). Correlational and comparative analyses were performed, with a 5% significance level (p < 0.05). Results There was a greater predominance of females diagnosed with multiple sclerosis, with a mean age of 40 years, who graduated from high school, and with a relapsing-remitting disease course. Voice handicap was positively correlated with vocal fatigue, and voice handicap and vocal fatigue were negatively correlated with voice-related quality of life in both groups. Participants with multiple sclerosis exceeded the VHI-10 and VFI cutoff scores and were below the V-RQOL cutoff score. Conclusion There was a prevalence of the disease in young, educated females with relapsing-remitting disease. The greater the voice handicap and/or vocal fatigue, the lower the voice-related quality of life in both groups. However, people with multiple sclerosis self-reported greater voice handicap and vocal fatigue and poorer voice-related quality of life.

RESUMO Objetivo descrever características sociodemográficas de indivíduos com esclerose múltipla, correlacionar e comparar a fadiga, desvantagem vocal e a qualidade de vida em voz de indivíduos com e sem a doença. Método Estudo transversal, quantitativo e com 52 voluntários com esclerose múltipla e 52 voluntários-controle, pareados por sexo, idade e escolaridade. Dados sociodemográficos e clínicos foram coletados com questionário e análise de prontuários. Os participantes responderam ao Índice de Desvantagem Vocal reduzido (IDV-10), Índice de Fadiga Vocal (IFV) e Qualidade de Vida em Voz (QVV). Análises correlacionais e comparativas foram realizadas, com um nível de significância de 5% (p<0,05). Resultado Maior predomínio de participantes diagnosticados com esclerose múltipla do sexo feminino, média de 40 anos, ensino médio completo e curso da doença do tipo remitente-recorrente. Houve correlação positiva entre a desvantagem e a fadiga vocal, e correlação negativa entre a desvantagem e fadiga vocal com a qualidade de vida em voz em ambos os grupos. Além disso, os participantes com esclerose múltipla ultrapassaram as notas de corte do IDV-10 e do IFV e ficaram abaixo da nota de corte do QVV. Conclusão Houve prevalência da doença em indivíduos jovens do sexo feminino, escolarizados e do tipo remitente-recorrente. Quanto maior a desvantagem e/ou a fadiga vocal, menor é a qualidade de vida em voz em ambos os grupos. No entanto, pessoas com esclerose múltipla autorreferem maior desvantagem e fadiga vocal, além de menor qualidade de vida relacionada à voz.

https://doi.org/10.1590/2317-1782/e20230320pt

Prediction of the need for maintenance of rigid pavements using finite element models and artificial neural networks
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Chamorro, Lorena Jacqueline Chamorro

; Sotelino, Elisa Dominguez

Revista IBRACON de Estruturas e Materiais

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2025, Volumen 18 Nº 1 elocation e18106

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Este trabalho foca-se na simulação do comportamento de pavimentos utilizando o Método de Elementos Finitos (MEF) com o objetivo de prever o aparecimento das fissuras durante sua vida útil. O método desenvolvido pode ajudar no planejamento da manutenção no sentido de proporcionar segurança e conforto aos usuários. São considerados os efeitos das cargas de tráfego e das variações de temperatura. Ferramentas de inteligência artificial (IA) são adotadas para reduzir o tempo necessário para a interpretação dos resultados das simulações para o desenvolvimento de um sistema eficiente de gestão de pavimentos. O sistema de gerenciamento de pavimentos rígidos desenvolvido utiliza a técnica de Redes Neurais Artificiais (RNA) para a previsão da resposta do pavimento ao acumulo de fadiga e do comportamento do pavimento modelado com alto grau de precisão. As redes apresentaram erros quadrados de 4.5% e 3.6% para gradientes de temperatura positivos e negativos e correlação de dados de 95% e 97%, respectivamente. O índice de tensão SR obtido pelo modelo desenvolvido em ABAQUS é 0.614 e o valor fornecido pelo sistema de gerenciamento de pavimentos é 0.648. A metodologia desenvolvida foi aplicada a um trecho da rodovia BR-101/NE, entre os estados da Paraíba PR e Pernambuco PE, no Brasil. Comparando os resultados com os limites previstos pelo Programa Cooperativo Nacional de Pesquisa Rodoviária (NCHRP) para o tráfego do trecho de estudo, este pavimento necessitaria de manutenção semestral. Os valores máximos de tensão de tração por flexão foram obtidos combinando o gradiente positivo de temperatura com a carga do eixo de tráfego na borda durante os meses de verão (dezembro a março) devido aos maiores valores de gradiente térmico. focase foca se MEF (MEF útil usuários IA (IA RNA (RNA precisão 45 4 5 4.5 36 3 6 3.6 95 97 97% respectivamente 0614 0 614 0.61 0648 648 0.648 BR101/NE, BR101NE BRNE BR 101/NE, 101 NE BR-101/NE PE Brasil NCHRP (NCHRP estudo semestral dezembro março térmico 4. 3. 9 061 61 0.6 064 64 0.64 BR101 BR101/NE 101NE 101/NE 10 06 0. BR10 1 BR1

Abstract This work is concerned with the simulation of pavement behavior using the Finite Element Method (FEM) with the goal of predicting the appearance of cracks during its useful life. The developed method can help maintenance planning towards providing users with safety and comfort. The effects of both traffic loads and temperature variations are considered. Artificial Intelligence (AI) tools are adopted to reduce the time necessary for the interpretation of simulation results for the development of an efficient pavement management system. The developed rigid pavement management system uses the Artificial Neural Networks (ANN) technique for the prediction of both pavement response to fatigue accumulation and the behavior of the modeled pavement with a high degree of precision. The networks showed 4.5% and 3.6% square errors for positive and negative temperature gradients and 95% and 97% data correlation, respectively. The SR stress ratio obtained by the developed ABAQUS model is 0.614 and the value provided by the pavement management system is 0.648. The developed methodology was applied to a section of highway BR-101/NE, between the states of Paraiba PR and Pernambuco PE, in Brazil. Comparing the results with the limits provided by National Cooperative Highway Research Program (NCHRP) for traffic in the study, this pavement would require maintenance every six months. The maximum values of tensile stress due to bending were obtained by combining the positive temperature gradient with the traffic axis load at the edge during the summer months (December to March) due to the higher thermal gradient values. FEM (FEM life comfort considered AI (AI ANN (ANN precision 45 4 5 4.5 36 3 6 3.6 95 97 correlation respectively 0614 0 614 0.61 0648 648 0.648 BR101/NE, BR101NE BRNE BR 101/NE, 101 NE BR-101/NE PE Brazil NCHRP (NCHRP study December March 4. 3. 9 061 61 0.6 064 64 0.64 BR101 BR101/NE 101NE 101/NE 10 06 0. BR10 1 BR1

https://doi.org/10.1590/s1983-41952025000800006

Aspects of general, mental, and auditory health among nursing team members of a public hospital affected by Covid-19 general mental Covid19 Covid 19 Covid-1 Covid1 1 Covid-
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Damaceno, Rafael Coelho

; França, Denise Maria Vaz Romano

; Lacerda, Adriana Bender Moreira de

; Lüders, Débora

Revista CEFAC

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2025, Volumen 27 Nº 1 elocation e2124

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT Purpose: to analyze possible impacts on the general, mental and hearing health of nursing workers affected by the COVID-19 virus. Methods: an exploratory, cross-sectional study, carried out with nursing professionals from a public hospital in Southern Brazil, who answered a questionnaire on general and auditory symptoms after COVID-19 infection, and the Oldenburg Burnout Inventory (OLBI). Statistical analysis was performed using the Chi-square test of independence, the ANOVA test with Tukey's post-test and Pearson's Linear Correlation, with a p-value of 5%. Results: 52 workers participated (17 nurses, 30 technicians, five aides). The symptoms of headache, loss of smell and taste, fatigue and muscle pain were reported by more than 75% of workers; 80.8% either had already been classified as burnout (40.4%) or featured high scores for exhaustion or work disengagement (40.4%), with a correlation with the symptoms of cough (p=0.0327) and fever (p=0.0235); 44.23% had auditory symptoms, with dizziness/vertigo reported by 34.6% and tinnitus by 13.5%, although without correlation with burnout levels (p=0.4250). Conclusion: there were impacts on the general, mental and hearing health of nursing workers who were diagnosed with COVID-19, mainly cough and fever, burnout, tinnitus and dizziness. Purpose COVID19 COVID 19 COVID-1 virus Methods exploratory crosssectional cross sectional study Brazil infection OLBI. OLBI . (OLBI) Chisquare Chi square independence Tukeys Tukey s posttest post Pearsons Pearson Correlation pvalue p value 5 5% Results 17 (1 nurses 3 technicians aides. aides aides) headache taste 75 808 80 8 80.8 40.4% 404 40 4 (40.4% 40.4%, , p=0.0327 p00327 0 0327 (p=0.0327 p=0.0235 p00235 0235 (p=0.0235) 4423 44 23 44.23 dizzinessvertigo dizziness vertigo 346 34 6 34.6 135 13 13.5% p=0.4250. p04250 p=0.4250 4250 (p=0.4250) Conclusion COVID19, 19, COVID1 1 COVID- (OLBI ( 7 80. 40.4 (40.4 p=0.032 p0032 032 (p=0.032 p=0.023 p0023 023 (p=0.0235 442 2 44.2 34. 13.5 p0425 p=0.425 425 (p=0.4250 40. (40. p=0.03 p003 03 (p=0.03 p=0.02 p002 02 (p=0.023 44. 13. p042 p=0.42 42 (p=0.425 (40 p=0.0 p00 (p=0.0 (p=0.02 p04 p=0.4 (p=0.42 (4 p=0. p0 (p=0. (p=0.4 p=0 (p=0 p= (p= (p

RESUMO Objetivo: analisar possíveis impactos à saúde geral, mental e auditiva de trabalhadores da enfermagem acometidos pelo vírus da COVID-19. Métodos: estudo exploratório, transversal, realizado com profissionais da enfermagem de um hospital público da região Sul do Brasil, que responderam a um questionário sobre sintomas gerais e auditivos após a infecção pela COVID-19 e o Oldenburg Burnout Inventory (OLBI). A análise estatística foi realizada com a aplicação do teste do Qui-quadrado de independência, do teste ANOVA com pós-teste de Tukey e da Correlação Linear de Pearson, com p-valor em 5%. Resultados: participaram 52 trabalhadores (17 enfermeiros, 30 técnicos, cinco auxiliares). Os sintomas de cefaleia, perda do olfato e do paladar, cansaço e dores musculares foram referidos por mais de 75% dos trabalhadores; 80,8% ou já estão classificados com burnout (40,4%) ou já apresentam escores altos para exaustão ou para distanciamento do trabalho (40,4%), havendo correlação com os sintomas tosse (p = 0,0327) e febre (p=0,0235); 44,23% apresentaram sintomas auditivos, sendo a tontura/vertigem referida por 34,6% e zumbido por 13,5%, embora sem correlação com os níveis de burnout (p=0.4250). Conclusão: houve impactos na saúde geral, mental e auditiva dos trabalhadores da enfermagem que foram diagnosticados com COVID-19, principalmente tosse e febre, burnout, zumbido e tontura. Objetivo geral COVID19. COVID19 COVID 19. 19 Métodos exploratório transversal Brasil COVID-1 OLBI. OLBI . (OLBI) Quiquadrado Qui quadrado independência pósteste pós Pearson pvalor p valor 5 5% Resultados 17 (1 enfermeiros 3 técnicos auxiliares. auxiliares auxiliares) cefaleia paladar 75 808 80 8 80,8 40,4% 404 40 4 (40,4% 40,4%, , 0,0327 00327 0 0327 p=0,0235 p00235 0235 (p=0,0235) 4423 44 23 44,23 tonturavertigem tontura vertigem 346 34 6 34,6 135 13 13,5% p=0.4250. p04250 p=0.4250 4250 (p=0.4250) Conclusão COVID19, 19, COVID1 1 COVID- (OLBI ( 7 80, 40,4 (40,4 0,032 0032 032 p=0,023 p0023 023 (p=0,0235 442 2 44,2 34, 13,5 p0425 p=0.425 425 (p=0.4250 40, (40, 0,03 003 03 p=0,02 p002 02 (p=0,023 44, 13, p042 p=0.42 42 (p=0.425 (40 0,0 00 p=0,0 p00 (p=0,02 p04 p=0.4 (p=0.42 (4 0, p=0, p0 (p=0,0 p=0. (p=0.4 p=0 (p=0, (p=0. p= (p=0 (p=

https://doi.org/10.1590/1982-0216/20252712124

Frecuencia de síntomas depresivos en pacientes con lepra de una ciudad del Caribe colombiano
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Salas-Romero, S

; Borge-Pérez, P

; Herrera, Yinet

; Guerra-Guardo, C

Revista Médica de Risaralda

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2024, Volumen 30 Nº 1 Paginas 29 - 39

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen Introducción: la lepra afecta a millones de personas deteriorando la salud física y mental, generando complicaciones como síntomas depresivos que pueden afectar la calidad de vida. Objetivo: estimar la prevalencia de síntomas depresivos en una agremiación de pacientes y expacientes con enfermedad de Hansen de una ciudad del Caribe colombiano. Materiales y métodos: estudio descriptivo con muestreo no probabilístico en miembros de una agremiación de pacientes y ex-pacientes con enfermedad de Hansen de una ciudad del Caribe colombiano. Los síntomas depresivos fueron estimados mediante test de Beck I y los resultados se contrastaron con variables sociodemográficas y clínicas mediante análisis bivariado. Resultados: participaron 51 personas, con una edad promedio de 52 años (IC 35,7-68,5), y predominio del sexo masculino (57%). El 39% de la población cursó bachillerato, el 25% se encontraban en tratamiento al momento de la encuesta y el 33% presentaban algún grado de discapacidad. El 27%, 16% y 2% de la población presentó depresión leve, moderada y severa respectivamente. El síntoma depresivo más frecuentemente descrito fue la fatiga (13%) seguido de cambios en el apetito (84,2%), llanto (81,6%), y tristeza (79%). No se encontró relación estadísticamente significativa entre presencia de síntomas depresivos y características sociodemográficas, el tratamiento y la discapacidad. Conclusiones: el 35% de los encuestados con el test de Beck I obtuvo calificaciones compatibles con depresión, se recomienda incluir manejo especializado en salud mental dentro del abordaje integral del paciente y expaciente con enfermedad de Hansen.

ABSTACT Introduction: Leprosy affects millions of people, impairing both physical and mental health and giving rise to complications such as depressive symptoms that can impact the quality of life. Objective: To estimate the prevalence of depressive symptoms in an association of patients and former patients with Hansen's disease in a city in the Colombian Caribbean. Materials and methods: A descriptive study with non-probabilistic sampling was conducted among members of an association of patients and former patients with Hansen's disease in a city in the Colombian Caribbean. Depressive symptoms were assessed using the Beck Depression Inventory, and the results were compared with sociodemographic and clinical variables through bivariate analysis. Results: Fifty-one individuals participated, with an average age of 52 years (CI 35.7-68.5), and a male predominance (57%). Thirty-nine percent of the population had completed high school, 25% were undergoing treatment at the time of the survey, and 33% had some degree of disability. Twenty-seven percent, 16%, and 2% of the population exhibited mild, moderate, and severe depression, respectively. The most frequently reported depressive symptom was fatigue (13%), followed by changes in appetite (84.2%), crying (81.6%), and sadness (79%). No statistically significant relationship was found between the presence of depressive symptoms and sociodemographic characteristics, treatment, or disability. Conclusions: It is evident that 35% of respondents scored in the range indicative of depression on the Beck Depression Inventory. Specialized mental health management is recommended to be included in the comprehensive care of patients and former patients with Hansen's disease.

https://doi.org/10.22517/25395203.25496

10.

Efecto semanal de la rehabilitación cardiaca en el estrés percibido y estados de ánimo de pacientes cardiacos
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics

Gamboa-Salas, Jean Carlo Araya-Ramírez, Felipe Sánchez-Ureña, Braulio Rodríguez-Cambronero, Vera

Revista Costarricense de Cardiología

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2024, Volumen 26 Nº 1-2 Paginas 25 - 31

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

ABSTRACT Purpose: To determine the weekly effect of exercise-based cardiac rehabilitation (CR) on perceived stress and mood states in patients with coronary artery disease (CAD). Methods: Twenty-one patients were measured every week for eight weeks on perceived stress and mood states (fatigue, vigor, tension, and friendship), using the scale of perceived stress (EEP-10) and the profile of mood states (POMS). Functional exercise capacity was obtained based on the 6-minute walk test (6MWT) at pre- and post-CR. Repeated measures ANOVA was used to determine outcomes differences. Effect sizes were also calculated, and probability was set at level p < 0.05. Results: Patients reduced stress, F (8-160) = 7.72, p < 0.01, η2 =.279, 11.5±4.3 to 5.7±4.3 score 50% post CR. Stress reduced from week 1, 11.5±4.3 to 8.0±4.6, p = 0.049 and was maintained subsequently. Fatigue decreased, F (8-160) = 4.3, p = 0.016, η2 =.178, 6.3±5.2 to 2.6±2.3, score, 58% after CR. The change in fatigue was observed until week 7, 6.3±5.2 to 3.1±3.8, p =.010. Vigor increased, F (8-160) =7.1, p = 0.0019, η2 =.263, 12.2±4.6 to 16.0±3.6, score, 31% more post CR. The improvement in vigor was observed until week 5, 12.2±4.6 to 3.6±16.1, p = 0.009 and it was maintained afterward. Tension decreased, F (8-160) =7.8, p = 0.005, η2 =.281, 6.0±4.5 to 2.4±2.8 score, 60% less post CR. The decrease in tension was observed at week 3, 6.0±4.5 to 3.2±3.1, p = 0.037 and remained at week 5, 6 and 8, p = 0.004, p = 0.005, p = 0.005, respectively. Friendship only improved 12.5% at week 5, 15.2±3.1 to 17.1±2.7, p = 0.015. The 6MWT distance improved 26%, 444±86 to 559±88m, ES = 1.2, p < 0.01. Conclusion: Our eight-week exercise-based CR was effective on reducing the levels of perceived stress and improving the mood states of vigor, fatigue, and tension.

RESUMEN Objetivo: Determinar el efecto semanal del ejercicio físico en rehabilitación cardiaca (RC) sobre el estrés percibido y estados de ánimo de pacientes con enfermedad arterial coronaria. Metodología: Veintiún pacientes fueron medidos semanalmente durante 8 semanas en el estrés percibido utilizando la escala (EEP-10) y los estados de ánimo (fatiga, vigor, tensión y amistad) con el perfil de estados de ánimo (POMS). La capacidad funcional se midió con la prueba de caminata de 6 minutos (PC6M) al inicio y al final de RC. Se utilizó la ANOVA de medidas repetidas para determinar las diferencias entre las mediciones. Se calcularon los tamaños de efecto mediante d de “Cohen” y el η2 y la probabilidad se estableció en p < 0.05. Resultados: Los pacientes redujeron el estrés 50% con RC, F (8-160) = 7.72, p <.05, η2=.279 de 11.5±4.3 a 5.7±4.3, p <.01. El estrés se redujo en semana 1, 11.5±4.3 a 8.0±4.6, p = 0.049 y luego se mantuvo. La fatiga disminuyó un 58% después de RC, F (8-160) = 4.3, p = 0.016, η2 =.178 de 6.3±5.2 a 2.6±2.3. El cambio en fatiga se observó hasta semana 7, 6.3±5.2 a 3.1±3.8, p =.010. El vigor aumentó un 31% después de RC, F (8-160) = 7.1, p = 0.0019, η2 =.263 de 12.2±4.6 a 16.0±3.6. El aumento en vigor se observó hasta la semana 5 (12.2±4.6 a 3.6±16.1, p = 0.009). La tensión disminuyó un 60% después de RC, F (8-160)= 7.8, p <.05, η2=.281 de 6.0±4.5 a 2.4±2.8. La disminución ocurrió en semana 3, 6.0±4.5 a 3.1 ±3.2, p =.037 y se mantuvo en semanas 5,6 y 8 p =.004, p =.005, p =.005. La amistad mejoró 12.5% en semana 5, 15.2±3.1 a 17.1±2.7, p = 0.015. La distancia en la PC6M mejoró un 26%, 444±86 a 559±88 m, TE = 1.2, p < 0.01. Conclusión: La RC de ocho semanas de ejercicio físico fue efectiva en reducir los niveles de estrés percibido y mejorar los estados de ánimo de vigor, fatiga y tensión.

11.

COMO FICA A SAÚDE FÍSICA E MENTAL? UMA PESQUISA COM ESTUDANTES QUE CONCILIAM TRABALHO E MESTRADO ACADÊMICO MENTAL
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Soares, Edilene Darley

; Campos, Alyce Cardoso

; Souza, Caissa Veloso e

; Oliveira, Alyne Luysa Rodrigues Duarte

REAd. Revista Eletrônica de Administração (Porto Alegre)

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2024, Volumen 30 Nº 3 Paginas 1316 - 1349

Resumen: En Pt Es | Texto: En Pt Es | PDF: En | PDF: Pt | PDF: Es

ABSTRACT This study aimed to understand how the reconciliation between work and study can impact the physical and mental health of students of the academic master’s degree. Data from the Ministry of Education (MEC) unveil a significant increase in the number of master’s and doctoral students in Brazil, which in 2021 was 322,969 thousand, reaching the margin of 350 thousand enrolled in 2023. Although achieving the title of master or doctor is an academic milestone, the journey of these students is permeated by challenges due to the particularities of the graduate environment at the stricto sensu level, delimited by nuances of high demands. These demands are placed on students who are dealing with complex life situations, which can have a greater impact on their overall health. This was qualitative/descriptive research, carried out by semi-structured interviews conducted with 14 students who reconcile work and academic master’s degrees in institutions located in Minas Gerais. In the results produced by the research, the participants reported that they experience high levels of exhaustion and psychological suffering, which generates tiredness, fatigue, exhaustion and others caused by the stress of the exhausting routine and high demands. The research was concluded by identifying the need for management in clinical-psychological support for master’s and doctoral students in Brazil. masters s degree MEC (MEC Brazil 202 322969 322 969 322,96 35 2023 milestone level situations qualitativedescriptive qualitative descriptive semistructured semi structured 1 Gerais suffering tiredness fatigue clinicalpsychological clinical 20 32296 32 96 322,9 3 2 3229 9 322,

RESUMO Este estudo teve como objetivo compreender como a conciliação entre trabalho e estudo pode impactar na saúde física e mental de alunos de mestrado acadêmico. Dados do Ministério da Educação (MEC) revelam aumento significativo no número de mestrandos e doutorandos no Brasil, que em 2021 era de 322.969, alcançando a margem de 350 mil matriculados em 2023. Embora alcançar o título de mestre ou doutor seja um marco acadêmico, a jornada desses estudantes é permeada por desafios devido às particularidades do ambiente de pós-graduação em nível stricto sensu, demarcado por nuances de exigências mais elevadas. Essas exigências são impostas a estudantes que lidam com situações complexas de vida, o que pode gerar impactos significativos na saúde geral. Esta foi uma pesquisa de abordagem qualitativa/descritiva, realizada por entrevistas semiestruturadas conduzidas com 14 estudantes que conciliam trabalho e mestrado acadêmico em instituições localizadas em Minas Gerais. Nos resultados produzidos pela pesquisa, os participantes relataram que vivenciam altos níveis de esgotamento e sofrimento psicológico, o que gera cansaço, fadiga, exaustão e outros, provocados pelo estresse da rotina exaustiva e pelas cobranças elevadas. Concluiu-se a pesquisa identificando necessidade de manejo no apoio clínico-psíquico para estudantes de mestrado e doutorado no Brasil. MEC (MEC Brasil 202 322969 322 969 322.969 35 2023 pósgraduação pós graduação sensu elevadas vida geral qualitativadescritiva qualitativa descritiva qualitativa/descritiva 1 Gerais psicológico cansaço fadiga outros Concluiuse Concluiu se clínicopsíquico clínico psíquico 20 32296 32 96 322.96 3 2 3229 9 322.9 322.

RESUMEN Este estudio tuvo como objetivo comprender cómo la conciliación entre el trabajo y el estudio puede impactar en la salud física y mental de los estudiantes de la maestría académica. Datos del Ministerio de Educación – MEC revelan un aumento significativo en el número de estudiantes de maestría y doctorado en Brasil, que en 2021 fue de 322.969 mil, alcanzando el margen de 350 mil matriculados en 2023. Si bien alcanzar el título de maestría o doctorado es un hito académico, el camino de estos estudiantes está permeado por desafíos debido a las particularidades del entorno del egreso a nivel stricto sensu, demarcado por matices de exigencias significativas. Esas exigencias son impostas a los estudiantes que se enfrentan a situaciones complejas de la vida, o que pueden generar mayores impactos en la salud global. Se trata de una investigación cualitativa-descriptiva, realizada por entrevistas semiestructuradas a 14 estudiantes que concilian el trabajo y la maestría académica en instituciones ubicadas en Minas Gerais. En los resultados producidos por la investigación, los participantes reportaron que experimentan altos niveles de agotamiento y sufrimiento psicológico, lo que genera cansancio, fatiga, agotamiento y otros causados por el estrés de la rutina agotadora y las altas exigencias. La investigación se concluyó identificando la necesidad de gestión en el apoyo clínico-psicológico para estudiantes de maestría y doctorado en Brasil. Brasil 202 322969 322 969 322.96 35 2023 académico sensu significativas vida global cualitativadescriptiva, cualitativadescriptiva cualitativa descriptiva, descriptiva cualitativa-descriptiva 1 Gerais psicológico cansancio fatiga clínicopsicológico clínico 20 32296 32 96 322.9 3 2 3229 9 322.

https://doi.org/10.1590/1413-2311.415.137493

12.

Efectos fisiológicos del hábito de la coca. Una aproximación histórica durante el siglo XX
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ayala-Pío, Salomón

; Meneses, Giovanni

Anales de la Facultad de Medicina

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Oct 2024, Volumen 85 Nº 4 Paginas 481 - 485

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

RESUMEN El objetivo del presente estudio es ofrecer una perspectiva histórica de las investigaciones académicas sobre los efectos fisiológicos de la masticación de las hojas de coca durante el siglo XX. Se realizó una búsqueda bibliográfica en revistas de la época y publicaciones de las últimas décadas, relativas a los efectos estimulantes, reducción de la fatiga y acción sobre la capacidad de trabajo. Revisamos los estudios de Gutiérrez-Noriega durante los años 40, así como la demostración experimental de la excitación motora de la coca y cocaína. Los estudios no han dilucidado la influencia en la capacidad de trabajo de los habituados.

ABSTRACT The objective of this study is to offer a historical perspective of the academic research about the physiological effects of the chewing of coca leaves during the twentieth century. We reviewed papers in old journals and recent publications, related to the stimulant, mitigating effects of fatigue and its action on work capacity. We reviewed the studies of Gutiérrez-Noriega during the 40s and the experimental demonstration of increase of locomotor activity with coca and cocaine. The studies have not elucidated the influence on work capacity of the coca users.

https://doi.org/10.15381/anales.v85i4.29372

13.

Natural supplementation to effectively treat cancer-induced fatigue: evidence of a meta-analysis on the use of guaraná cancerinduced cancer induced fatigue metaanalysis meta analysis
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Maselli-Schoueri, Jean Henri

; Aguiar Junior, Pedro Nazareth

; Giglio, Auro del

Revista da Associação Médica Brasileira

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Oct 2024, Volumen 70 Nº 10 elocation e20240528

Resumen: En | Texto: En | PDF: En

SUMMARY BACKGROUND: Cancer-related fatigue is a pervasive symptom, affecting up to 90% of cancer patients throughout their illness, and can persist well after treatment has ended. Despite its prevalence, no definitive evidence-based treatment exists, leading to an abundance of proposed alternatives, including natural supplements. To further explore the potential effects of guaraná on cancer-related fatigue, a systematic review with meta-analysis was conducted and registered on the International Prospective Register of Systematic Reviews (CRD42023484144). METHODS: A thorough search of PubMed/MEDLINE and Cochrane Library was conducted using MeSH terms and related keywords for cancer-related fatigue and guaraná. Eligible studies were selected according to predetermined criteria and assessed for quality in accordance with the Cochrane Handbook for Systematic Reviews of Interventions. Data extraction was independently performed by two reviewers, with any discrepancies resolved by a third researcher. RESULTS: In total, 4 full articles and 1 abstract, encompassing a total of 229 patients from 2009 to 2023, were included in the meta-analysis. Despite high heterogeneity between studies (I2=78%, ꭓ2=18.51, df=4, p=0.0010), the analysis revealed a significant benefit of using guaraná to alleviate cancer-related fatigue, with a standard mean difference of −0.77 (95%CI −1.34, −0.21) and a test for the overall effect of Z=2.68 (p=0.007). CONCLUSION: This meta-analysis provides support for the use of guaraná in the treatment of cancer-related fatigue. However, further investigation through larger prospective randomized controlled trials is necessary to validate these findings. BACKGROUND Cancerrelated Cancer symptom 90 illness ended prevalence evidencebased evidence based exists alternatives supplements cancerrelated metaanalysis meta CRD42023484144. CRD42023484144 CRD . (CRD42023484144) METHODS PubMedMEDLINE PubMed MEDLINE Interventions reviewers researcher RESULTS abstract 22 200 2023 metaanalysis. analysis. I2=78%, I278 I I2 78 (I2=78% ꭓ21851 ꭓ ꭓ2 18 51 ꭓ2=18.51 df4 df df=4 p=0.0010, p00010 p p=0.0010 , 0 0010 p=0.0010) 077 77 −0.7 95%CI 95CI CI 95 134 34 −1.34 −0.21 021 21 Z268 Z 2 68 Z=2.6 p=0.007. p0007 p=0.007 007 (p=0.007) CONCLUSION However findings 9 CRD4202348414 (CRD42023484144 20 202 I2=78% I27 7 (I2=78 ꭓ2185 5 ꭓ2=18.5 df= p0001 p=0.001 001 07 −0. 13 3 −1.3 −0.2 02 Z26 6 Z=2. p000 p=0.00 00 (p=0.007 CRD420234841 (CRD4202348414 I2=78 (I2=7 ꭓ218 ꭓ2=18. −0 −1. Z2 Z=2 p00 p=0.0 (p=0.00 CRD42023484 (CRD420234841 I2=7 (I2= ꭓ21 ꭓ2=18 − −1 Z= p0 p=0. (p=0.0 CRD4202348 (CRD42023484 I2= (I2 ꭓ2=1 p=0 (p=0. CRD420234 (CRD4202348 (I ꭓ2= p= (p=0 CRD42023 (CRD420234 (p= CRD4202 (CRD42023 (p CRD420 (CRD4202 CRD42 (CRD420 CRD4 (CRD42 (CRD4 (CRD

https://doi.org/10.1590/1806-9282.20240528

14.

The effectiveness of relaxation exercises on fatigue in hemodialysis patients: a meta-analysis study patients metaanalysis meta analysis
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

İçigen, Ayşegül Yıldız

; Erdem, Emine

Revista da Associação Médica Brasileira

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Oct 2024, Volumen 70 Nº 10 elocation e20240680

Resumen: En | Texto: En | PDF: En

SUMMARY OBJECTIVE: This study was conducted to determine the effect of relaxation exercise on fatigue symptoms in hemodialysis patients. METHODS: This is a meta-analysis study. The literature review was carried out by searching studies published between 2011 and 2020. This meta-analysis was recorded on PROSPERO in the National Health Research Institute (Registration no: CRD42022313646). RESULTS: Seven studies meeting the inclusion criteria were included in the meta-analysis. The effect size of the studies included in the meta-analysis was found to be g=1.232 (p=0.028), which indicated a "huge effect size." The scale used in the subgroup analyses, the application time of the relaxation exercise, and the number of relaxation exercise applications were evaluated, and a significant difference was found at p<0.05. CONCLUSION: Relaxation exercises can be used as an effective method for reducing fatigue in hemodialysis patients. OBJECTIVE patients METHODS metaanalysis meta analysis 201 2020 Registration no CRD42022313646. CRD42022313646 CRD . CRD42022313646) RESULTS metaanalysis. analysis. g1232 g 1 232 g=1.23 p=0.028, p0028 p p=0.028 , 0 028 (p=0.028) huge size. analyses evaluated p005 05 p<0.05 CONCLUSION 20 202 CRD4202231364 g123 23 g=1.2 p002 p=0.02 02 (p=0.028 p00 p<0.0 2 CRD420223136 g12 g=1. p=0.0 (p=0.02 p0 p<0. CRD42022313 g1 g=1 p=0. (p=0.0 p<0 CRD4202231 g= p=0 (p=0. p< CRD420223 p= (p=0 CRD42022 (p= CRD4202 (p CRD420 CRD42 CRD4

https://doi.org/10.1590/1806-9282.20240680

15.

Determination of the continuous grade of a binder in the South African performance grade binder specification
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Bredenhann, S J Rowe, G M Myburgh, P A

Journal of the South African Institution of Civil Engineering

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Sep 2024, Volumen 66 Nº 3 Paginas 37 - 41

Resumen: En | Texto: En | PDF: En

A Performance Grade (PG) Bitumen Specification, SATS-3208 (SATS 2019), was developed in South Africa during the period up to 2019. Since that time a period of implementation has begun on selected projects in South Africa. The implementation activities have included testing of data in accordance with the final anticipated standards. Formulation of a national standard is in the final stages and is expected to be published towards the end of 2024. The PG grade is specified using a high temperature number and a minimum temperature number that indicate the climate range within which a bitumen would be expected to perform. For example, a PG64-22 has a high temperature of 64°C and a minimum temperature of -22°C, from which intermediate and low operating temperatures are derived. A material meeting this grade will always have a performance range which is, ideally, just bigger than the specification grade and this is typically referenced as the continuous grade. A further definition is the difference between the two continuous grade numbers, referenced as the "Useful Temperature Interval" or UTI. As part of this implementation, it is required to determine the continuous grade for bitumen, including for modified binders, to ensure compliance with the specification. The UTI must be equal to or greater than 80°C. This technical note has been developed to demonstrate correct procedure to determine the continuous grade and UTI.

https://doi.org/10.17159/2309-8775/2024/v66n3a4

Mostrar

itens por página

Página de 178 Próxima

Seleccione uno o más resultados

Todos Ordem alfabética

Resultados

Gráfico comparativo Descargar CSV

Visualizar estadísticas de

Enviar resultado

E-mail do(s) destinatário(s)*

Utilize ; (punto y coma) para más de un correo.

Enviar por correo-e

Esta página

Registros seleccionados

Todas las referencias (max. 300)

Su email

Asunto

Comentarios

Formato de exportación:

RIS (para EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citación

CSV (para Excel, etc)

Exportar:

Esta página

Itens seleccionados

Todas las referencias (max. 2000)

Sem resultados

No se encontraron documentos para su búsqueda

Glosario y ayuda para la búsqueda

Ud. puede enriquecer su búsqueda de una forma muy sencilla. Use los índices de búsqueda combinados con los conectores (AND u OR) para especificar su busca.

Por ejemplo, si desea buscar artículos acerca de
casos de dengue en el Brasil en 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

A continuación se muestra la lista completa de los índices de búsqueda que se pueden utilizar:

Cód. del Índice	Elemento
ti	título del articulo
au	autor
kw	palabras clave del artículo
subject	asunto (palabras del título, resumen y palabras clave)
ab	resumen
ta	título abreviado de la revista (ej. Cad. Saúde Pública)
journal_title	título completo de la revista (ej. Cadernos de Saúde Pública)
la	código de idioma de publicación (ej. pt - Portugués, es - Español)
type	tipo de documento
pid	identificador de la publicación
publication_year	año de publicación del artículo
sponsor	financiador
aff_country	código del país de la afiliación del autor
aff_institution	institución de filiación del autor
volume	volumen del artículo
issue	número del artículo
elocation	elocation
doi	número DOI
issn	ISSN de la revista
in	código de la colección SciELO (ej. scl - Brasil, col - Colômbia)
use_license	código de licencia de uso del artículo

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

Todo el contenido de este sitio www.scielo.br, excepto dónde está identificado, está bajo una Licencia de Atribución Creative Commons.
sepa más »