bluuebunny/crossref_metadata_2025 huggingface dataset:
An ARIMA model for forecasting Wi-Fi data network traffic values
Authors: Hernández Suarez Cesar Augusto , Salcedo Parra Octavio José , Escobar Díaz Andrés
Published: August 2022

This present scientific and technological research was aimed at showing that time series represent an excellent tool for data traffic modelling within Wi-Fi networks. Box-Jenkins methodology (described herein) was used for this purpose. Wi-Fi traffic modelling through correlated models, such as time series, allowed a great part of the data's behavioral dynamics to be adjusted into a single equation and future traffic values to be estimated based on this. All this is advantageous when it comes to planning integrated coverage, reserving resources and performing more efficient and timely control at different levels of the Wi-Fi data network functional hierarchy. A six order ARIMA traffic model was obtained as a research outcome which predicted traffic with relatively small mean square error values for an 18-day term.
A methodology for designing urban solid waste collection by means of extreme generation factors: fixed box systems (FBS)
Authors: Zafra Mejía Carlos Alfonso
Published: August 2022

Economic development and that of consumer society implies large-scale production of solid waste in any determined locality. This becomes a serious environmental problem if there is no suitable infrastructure for its integral management. This paper presents a methodology for designing urban solid waste collection using fixed box systems (FBS), considering temporary variations in the amounts generated and collected. Temporary variation has been included by analysing three generation point factors: weekly extreme coefficient (WEC), daily extreme coefficient (DEC) and daily extreme coefficient of heterogeneous distribution (DECH). Such time-based consideration allows making reasonable designs which can be adjusted to maximum generation and collection rates. The proposed model considers per capita production (PCP), weekly extreme coefficient (WEC) and daily extreme coefficient of heterogeneous distribution (DECH). The proposed methodology can be used for selecting the equipment and the size of the integral management units for urban solid waste.
Operations variables in the transesterification process of vegetable oil: a review - chemical catalysis
Authors: Rojas González Andrés Felipe , Girón Gallego Erika , Torres Castañeda Harlen Gerardo
Published: August 2022

This article describes the results of a bibliographic review of the effects of operation conditions on process yield in the chemical transesterification of vegetable oil. The parameters studied were: temperature and time reaction, alcohol: oil molar ratio, catalyst and alcohol type, catalyst concentration, mixed intensity and free fatty acid and water concentration. It also reports that this process has been carried out with basic and acid catalysts using homogeneous and heterogeneous catalytic processes for a wide variety of oils. It was found that reaction yield increased when temperature and time reaction increased; however this parameter decreased at low catalyst concentration (<0.5 % w/w) and high free fatty acid (> 1% w/w) and water (> 3% w/w) concentration in oil.
Biosignal data preprocessing: a voice pathology detection application
Authors: Daza Santacoloma Genaro , Suárez Cifuentes Julio Fernando , Castellanos Domínguez Germán
Published: August 2022

A methodology for biosignal data preprocessing is presented. Experiments were mainly carried out with voice signals for automatically detecting pathologies. The proposed methodology was structured on 3 elements: outlier detection, normality verification and distribution transformation. It improved classification performance if basic assumptions about data structure were met. This entailed a more accurate detection of voice pathologies and it reduced the computational complexity of classification algorithms. Classification performance improved by 15%.
The behaviour of a historic masonry arch bridge regarding dynamic loads
Authors: Ospina Yesid Mauricio , Paredes López Jairo Andrés , Galindo Díaz Jorge Alberto
Published: August 2022

This article describes the analysis of a historic brick arch bridge constructed in Colombia during the 18th century for predicting its behavior in response to loads produced by seismic activity and determining its vulnerability. Two studies were carried out prior to the seismic analysis to obtain basic information regarding the structure's overall behavior (modal analysis and linear static analysis), both stemming from a three-dimensional model constructed by the finite elements method. Seismic excitation was simulated in the conditions proposed by 1998 Colombian seismic-resistant norms (NSR-98). The results obtained agreed with the bridge's history and with its response to earthquakes; the comparison between seismic loads and the resistance capacity of the materials constituting the structure confirms the vulnerability of these types of constructions regarding localised damage and the possibility of collapse. The results suggest that this procedure can be applied to other historic structures in Colombia.
Evaluating neural control with optimal architecture for DC/DC converter
Authors: Martínez Sarmiento Fredy Hernán , Castiblanco Ortíz Mariela
Published: August 2022

Controlling DC/DC converters (topologies widely used in the active reduction of harmonic content for single-phase nonlinear low-power equipment) raises great design challenges due to the mathematical model's complexity and its highly nonlinear dynamic characteristics. Artificial intelligence techniques, such as neuronal networks, suppose great improvements in design and final performance, given their capacity for learning complex dynamics and generalising their behaviour. This work was aimed at proposing (and evaluating dynamic response later on) direct control link with neuronal networks which also allowed eliminating test elements and error in its design. Artificial neuronal network-based direct control was designed as well as possible using bioinspired search models. This simultaneously optimized two different but fundamental aspects of the network: architecture and the weight of the connections. The control was applied to a boost converter. The results led to observing the scheme's dynamic performance; response time and exit voltage delta led to concluding that the criteria selected for designing the control were appropriate and represented a contribution towards developing control applications of DC/DC switchmode systems.
Flexural behavior of full-scale, carbon-fiber-reinforced polymer prestressed concrete beams
Authors: Poudel Prakash , Belarbi Abdeldjelil , Gencturk Bora , Dawood Mina
Published: August 2022

Highway bridge beams are subjected to aggressive environments, temperature fluctuations, and millions of loading cycles throughout their service life. The combi­nation of these effects can result in the reduction of the service life of structural components. In the past decades, more-durable composite materials, such as carbon-fiber-reinforced polymers (CFRPs) have been implemented in concrete structures to address problems related to environmental durability. To date, prestress­ing applications of CFRP in beams have been mostly investigated for rectangular cross sections, which are not representative of the geometry used in modern highway bridges. In addition, the construction and detailing aspects of CFRP prestressed concrete beams have not been investigated outside of laboratory conditions. This paper describes an experimental investigation conducted on eight 40 ft (12 m) long AASHTO Type I prestressed concrete beams with 3 ft (0.9 m) wide composite con­crete decks and detailed identically to highway bridge beams in practice. Three beams were pretensioned with carbon-fiber-composite cables, four beams with CFRP bars, and one with prestressing steel. The beams were tested under monotonic and fatigue loading. All CFRP prestressed concrete beams were designed to fail due to the rupture of the prestressing CFRP. The CFRP prestressed concrete beams exhibit several desirable features of the typical steel prestressed concrete beams in terms of serviceability and strength.
Investigation of the relationship between university students' mobile gaming motivations and loneliness levels
Authors: Öz Nazlı Deniz , Üstün Ferhat
Published: August 2022

Background and Study Aim. The aim of this study is to determine the mobile game motivations and loneliness levels of university students and to evaluate the relationship between them.

Material and Methods. In the study, the "Mobile Game Motivation Scale" developed by Üstün ve Öz and the "UCLA Loneliness Scale" developed by Russell et al and adapted to Turkish culture by Demir were used as data collection tools. 365 (Nwomen:140; Nmen:225) university students participated in the study on a voluntary basis. SPSS package program was used in the analysis of the data, and it was tested with parametric tests.

Results. As a result of the study, in favor of men in all Mobile Game Motivaton Scale and sub-dimensions according to gender, significant differences were found in the loneliness scale against those who have a higher income level than their monthly income. It can be said that the game motivation increases as the game playing time and weekly free time increase. In addition, a low level of positive correlation was found with Mobile Games Motivation Scale and UCLA Loneliness Scale.

Conclusions. The researchers conducted their studies on the concept of 'motivation', which is considered to be a major deficiency in studies in the field of social internet in general and mobile games in particular, and 'loneliness', which is accepted as a universal problem, and reached generalizable results on generation Z undergraduate students. The researchers presented a different perspective to the literature by examining the relationship between 'loneliness' and the structure they created through the sub-dimensions of Mobile Games Motivation Scale 'developmental tasks', 'escape and competition' and 'mobile flow'.
Cytokine responses to small sided games in young soccer players
Authors: Böge Veysel , Suleyman Patlar , Bekir Mehtap
Published: August 2022

The aim of this study was to determine of cytokine responses to small-sided games (SSG) in young soccer players

This study included fourteen male soccer players (14.5± 0.6 years). Soccer players are divided into 2 groups as 3x3 and 4x4 groups. 3x3 group players played 2x6x1 minutes small-sided games in 25x20 m area and 3x6x2 minutes small-sided games in 30x25 m area for 4x4 group players. Blood samples were collected at baseline [pre-training (PRE)] and at immediately after the exercise [post-training (POST)] to measure Interleukin-6 (IL-6), Tumor Necrosis Factor (Tnf-α), and Lactate (La) parameters. And also Heart Rate (HR) and rating of perceived exertion (RPE) determined both PRE and POST.

In the study, POST levels of La, IL-6, Tnf-α, HR, and RPE both in 3x3 group and in 4x4 group were found to be significantly higher than PRE (P<0.05). When the POST parameters of both groups were examined, only the Tnf-α level increased significantly in the 4x4 group (p<0.05), while no difference was found in the other parameters (p>0.05).

SSG which is acutely applied in young soccer players, both 3x3 group and 4x4 group is are similar. However with a more players can increase tnf-α released and this can effect performance as negatively in young soccer players.
Main research areas in kickboxing investigations: an analysis of the scientific articles of the Web of Science Core Collection
Authors: Podrigalo Leonid V. , Shi Keo , Podrihalo Olha O. , Volodchenko Olexandr A. , Halashko Olexandr I.
Published: August 2022

Background and Study Aim. Combat sports are among the most popular sports nowadays. Scientific support of combat sports is one of the urgent tasks of modern sports science. The purpose of this article is an analytical analysis of studies devoted to kickboxing. Material and methods. The bibliometric database Web of Science Core Collection (WoS) is analyzed. 194 articles that met the search criteria were selected for the primary analysis. We used bibliometric methods for processing the information received in the context of kickboxing. The VOSviewer 1.6.18 software was used: keyword analysis method and direct citation analysis with the construction of bibliometric maps, visualization of cluster density, and citation weights. Results. The constructed bibliometric maps made it possible to identify the leading thematic areas of research, the most popular areas of research in this area. They can be divided into sports and rehabilitation and recreational areas. In a sports context, these include the performance of technical and tactical elements of kickboxing, the study of the physiological characteristics of combat sports athletes; assessment of the main physical qualities and analysis of the adaptive potential of athletes; the study of biochemical and features of homeostasis, the state of the cardiorespiratory system; highlighting factors important for winning competitions. In the rehabilitation context, kickboxing is used to optimize the functional state, recover from injuries, and improve the quality of life of patients with chronic diseases. The use of the VOSviewer software, version 1.6.18, made it possible to conduct a comprehensive analysis of the problem, to determine the priority scientific directions in this area. In sports, this is an analysis of the technical and tactical indicators of athletes, the time spent on their implementation, the study of the metabolic characteristics of combat sports athletes, and the assessment of their physical qualities. Conclusions. The conducted bibliometric analysis of publications on the problem of kickboxing confirms the relevance of this area of sports science. There is a lack of research on a comprehensive study of success, monitoring the state of kickboxing athletes. These directions should be recognized as the most relevant in this area.
PRICE CLUSTERING IN INTERNATIONAL FINANCIAL MARKETS DURING THE COVID-19 PANDEMIC AND ITS IMPLICATIONS
Authors:   The IIE Vega School, South Africa, Enow Samuel Tabot
Published: August 2022

The proliferation of trading strategies in many security markets has led to intense scrutiny of market price movements and their distribution. The increase in trading activities across financial markets around the world has enhanced the likelihood of behavioral biases and the tendency for stock prices to cluster around certain intervals. The purpose of this study was to investigate price clustering and psychological barriers in the NASDAQ Index, CAC 40 Index, DAX Index, JPXNikkei Index 400, SSE Index, and the JSE Index from 2/01/2020 to 31/12/2021, during the height of the COVID-19 pandemic. Using chi-square and a Kolmogorov-Smirnov tests, the findings revealed evidence of price clustering in the JPX-Nikkei 400 and JSE Index, with further evidence of psychological barriers in the form of support and resistance in the JSE Index. This result implies that a retracement entry strategy is suitable for the JPX-Nikkei Index 400 and JSE Index, and a breakout strategy should be used in the NASDAQ Index, CAC 40 Index, DAX Index, and SSE Index. Security markets should actively promote UTP in order to promote price efficiencies.
GREEN HUMAN RESOURCE MANAGEMENT – AN EMPLOYEE PERSPECTIVE
Authors:   Finland, Pavlova Anastasia , Salminen Hanna ,   Tampere University, Finland, Mattila Malla ,   Tampere University, Finland
Published: August 2022

In recent years, green human resource management (GHRM) has attracted increasing interest among scholars and practitioners. This study explores employees’ perceptions regarding GHRM and their voluntary pro-environmental behavior in promoting GHRM in their employer organizations. Theoretically, the study builds upon the GHRM perspective and employees’ proenvironmental behavior literature. Empirically, the study utilizes 11 semi-structured interviews that were generated among employees in three different companies located in the Moscow metropolitan area in 2019. The study identifies three different GHRM approaches: an unofficial, bottom-up GHRM approach, an official GHRM approach, and a strategic GHRM approach. The study contributes to the current GHRM literature by demonstrating that employees’ voluntary proenvironmental behavior and active involvement in the promotion of green practices contribute to the development of GHRM at an organizational level. Furthermore, the findings indicate that cultural context has an influence on employees’ voluntary pro-environmental behavior as well as the development of GHRM practices. From a managerial viewpoint, the study provides insights to supervisors and HR professionals how they can create GHRM practices that involve employees in the development process and promote sustainable development in an organizational context.
THE EFFECTIVENESS OF PUBLIC ACCOUNTABILITY MECHANISMS IN THE SOUTH AFRICAN LOCAL GOVERNMENT CONTEXT: DURING AND POST COVID-19 PANDEMIC
Authors:   University of Limpopo, South Africa, Lebotsa Khutso Piet
Published: August 2022

This paper extensively investigates the effectiveness of public accountability mechanisms in the South African local government context during and post the Coronavirus Disease 2019 (Covid19) pandemic. Therefore, this paper argues that the adopted public accountability mechanisms at the municipal level are rigid and not adaptive to the new normal ushered in by the Covid-19 pandemic. The Covid-19 pandemic forced many countries including South Africa, to adopt policies to control mass gatherings and community events, as they are believed to be superspreader events. Local governments habitually used public meetings to inform communities about issues and consult them about development programs affecting them directly before the Covid19 pandemic. This paper is purely conceptual, relied profoundly on literature to fortify the argument. This study utilizes a qualitative research technique to achieve the objectives of this study. The study reveals that the adopted and established public accountability mechanisms at the local government sphere are not adaptive and effective to the new normal. The conclusion that can be drawn from this paper is that there is an urgent need for the government to revisit and formulate more adaptive and effective public accountability mechanisms.
TOWARDS ‘LEAVING NO ONE BEHIND’: A CASE STUDY OF CLIMATE CHANGE ADAPTATION IN MUTOKO DISTRICT, ZIMBABWE
Authors:   University of Limpopo, South Africa, Mugambiwa Shingirai Stanley , Tirivangasi Happy Mathew ,   University of Limpopo, South Africa, Rapanyane Makhura Benjamin ,   University of Limpopo, South Africa
Published: August 2022

This study assesses climate change adaptation strategies employed by community members in Mutoko district of Zimbabwe. Adaptation strategies to climate change are responses to actual or expected climatic stimuli which are meant to moderate harm or exploit associated beneficial opportunities. Rural communities are prone to suffer more from the effects of climate change because they largely depend on natural resources and a subsistence economy for their survival. Hence, knowledge of climate change effects and adaptation strategies will ensure the realization of agenda 2063 and Sustainable Development Goals. Agenda 2063 focuses on, among other things, African development of modern agriculture for increased production and value addition to farmers and national prosperity as well as Africa’s collective food security. This case study explores climate change knowledge and adaptation practices by communities in the Mutoko district. A qualitative research methodology and an exploratory design are employed to gather data. The study discovers that there are numerous strategies employed by community members to adapt to the effects of climate change.
Prácticas de autocuidado que realizan pacientes con diabetes mellitus tipo 2 de Cartagena-Colombia, 2021
Authors:   Corporación Universitaria Rafael Núñez, Madero Zambrano Kendy Paola , Orgulloso Bautista Claudia Alejandra
Published: August 2022

Introducción: La diabetes es una enfermedad crónica que puede causar invalidez física por sus variadas complicaciones multiorgánicas. Las prácticas de autocuidado son esenciales para el mantenimiento de la salud y la prevención de estas. Objetivo: Analizar las prácticas de autocuidado los pacientes con diabetes mellitus tipo 2 en Cartagena, 2021. Materiales y Métodos: El estudio observacional, analítico de corte transversal con 100 pacientes con diabetes mellitus tipo 2. Cuestionario (aspectos sociodemográficos, antecedentes personales patológicos y prácticas de autocuidado) que evaluó análisis univariado, bivariado y multivariado con regresión logística. Resultados: La mayoría tiene un diagnóstico de diabetes de 1-5 años (33%) y glicemia de ≥140 mg/dl (40%). Hubo buenas prácticas en higiene (66%), dieta (60%), sueño (50%), pero bajo nivel de actividad física (61%). Con asociación significativa de riesgo en actividad física, no tener estudio o primaria (OR: 15.44; IC 95% 2.78-85.48) y como protector en la dieta, cuando se tiene entre 41 a 56 años (OR: 0.07; IC 95% 0.00-0.60), de 52 a 72 años (OR: 0.04; IC 95% 0.00-0.42) y mayor de 73 años (OR: 0.01; IC 95% 0.00-0.28). Discusión: La población tenían un nivel bueno de prácticas de autocuidado. Es concordante con lo observado por otros autores; que determinaron que gran parte de la muestra tenían un nivel de conocimiento general alto sobre el autocuidado. Conclusiones: Las prácticas de autocuidado que realizan los pacientes con diabetes mellitus tipo 2 por lo general son buenas en cuanto a higiene, dieta y sueño, y malas respecto a actividad física.
EN PRENSA Urbanización del suelo en cuencas hidrográficas de la metrópoli de Guadalajara, México: entropía por escurrimientos superficiales.EN PRENSA
Authors: Flores Vilchez Fernando , Rojas Hernández Jaime Andrei , González Pérez Mario Guadalupe , Rodríguez Rodríguez Jesús
Published: August 2022

A efecto de considerar los escenarios actuales en materia de urbanización, toma de decisiones sectoriales e implementación de planes y programas de intervención urbanoterritorial, se contrastaron las condiciones geomorfológicas de la sub-cuenca ColomosAtemajac en la metrópoli de Guadalajara en México en los periodos de 2012 y 2019, con el objetivo de determinar la variación del caudal y su relación con el proceso de urbanización y disminución de áreas de bosque y pradera. Para ello, se procesaron datos obtenidos in situ en el sistema de información geográfica Qgis; además, se utilizaron ecuaciones y métodos estándarizados en hidrología para el cálculo de los parámetros necesarios en la elaboración de hidrogramas de precipitación. Se encontró, que en 2012 se tenían 18.39km2 de bosque, 10.4 km2 de pradera y 5.7 km2 de cobertura urbanizada, y para 2019, el bosque decendió a 18.38 km2; la pradera a 9.4 km2 y la cobertura urbanizada se incrementó a 6.8 km2. La información fue conceptualizada desde el modelo sistémico EntropíaHomeostasis-Negentropía; una derivación ampliada del modelo Presión-Estado-Respuesta de la Organización para la Cooperación y Desarrollo Económico. El ejercicio concluye, que la actual infraestructura hidráulica no satisface los regímenes de caudales y los escurrimientos superficiales superan la capacidad de retención y transporte; por tanto, anualmente terminan inundándose no sólo las mismas zonas urbanas, sino nuevas zonas que han sustituido su cobertura de suelo.
Sulfate resistance of ultrahigh-performance concrete with recycled fine aggregate
Authors: Zhang Binbin , Ma Yu , Lyu Guanji , Wu Shikang , Jiang Hui , Hu Yantong , Ji Tao
Published: August 2022

The effect of sulfate attack (SA) on the strength of ultrahigh-performance concrete (UHPC) made with different replacements (0%, 50% and 100% by weight) of natural fine aggregate with recycled fine aggregate (RFA) was investigated. The UHPC samples were soaked in 10% sodium sulfate solution for 0–180 days (SA duration). The sulfate ion concentration, flexural strength and compressive strength of the UHPCs were investigated. The microstructure of the UHPCs before and after SA was analysed using a multi-technique approach (analysis of interfacial transition zones (ITZs), X-ray diffraction, scanning electron microscopy–energy-dispersive X-ray spectroscopy and mercury intrusion porosimetry). The results showed that, with an increase in SA duration, the compressive strength of the UHPC made with RFA increased. The generated gypsum and ettringite refined the microstructure by converting harmful pores (>20 nm) into harmless pores (<20 nm) in the UHPC matrix. For the same SA duration, the sulfate ion concentration of UHPC increased with an increase in RFA content due to more ITZs, pores and microcracks introduced by the RFA. Strength development models for UHPC with different RFA contents under SA were developed.
Bacterial profile of surfaces and equipment of the Orthopedic Clinic of a University Hospital
Authors: Carvalho Amorim Guisande Tatiana Carla , Sarmento Sued Sheila , NAUE CARINE ROSA , Rodrigues Santana Mirthes Maria , Souza Silva Bruna Manuella , Freitas e Silva Carine
Published: August 2022

Healthcare-Associated Infections (HAIs) are an important public health problem that impacts negatively on hospital costs and patient prognosis. Given the importance of the hospital environment in the development of HAIs, the objective was to evaluate the bacterial profile on surfaces and equipment of the Orthopedic Clinic of the Hospital Universitário do Vale do São Francisco. Methods: This is a cross-sectional, descriptive, quantitative study. Samples were collected in 13 wards, each ward with four beds and one was chosen at random, where surfaces and equipment were sampled using swabs soaked in saline and a 1cm2 filter paper mold to standardize the samples. After passing the swab, they were stored in a tube containing 5mL of BHI (Brain Heart Infusion) liquid medium. Then, samples were transported to the Clinical Analysis Laboratory/Microbiology Sector where the microbiological analyzes were performed. Results: In total, 257 bacteria were observed, of which 5.11% were possible causes of hospital infection and 79% coagulase-negative Staphylococcus. Antibiograms of these were performed and different resistance profiles were found. The bathroom doorknob, a high-touch surface, presented the greatest variety of species among the evaluated surfaces. Conclusion: Surfaces and equipment of the evaluated clinic present possible bacteria that cause hospital infection with different profiles of antimicrobial resistance, contributing to possible cross infections
Analysis of congenital syphilis in northeastern Brazil
Authors: Amaral Jackeline Vieira , Araújo Agostinho Antônio Cruz , Monteiro Ana Karine da Costa , Araujo Filho Augusto Cezar Antunes de , Sales Isabela Maria Magalhães , Ibiapina Aline Raquel de Sousa
Published: August 2022

Justificativa e Objetivo: no Brasil, houve crescimento da transmissão vertical, tornando a sífilis congênita um problema de saúde pública. Nos últimos anos, houve um aumento nos casos de sífilis nas cinco regiões do Brasil, destacando-se as Regiões Nordeste e Sudeste com maior número de casos. Por isso, este estudo teve como objetivo descrever o perfil epidemiológico da sífilis congênita no nordeste brasileiro. Métodos: trata-se de um estudo retrospectivo, descritivo e quantitativo, a partir do levantamento das variáveis sociodemográfica, clínica e de óbitos do Sistema de Informação de Agravos de Notificação (SINAN), referente ao período de 2014 a 2018. Utilizou-se estatística descritiva. Resultados: Pernambuco apresentou o maior número de casos (25,2%), com aumento gradativo de incidência. Em 2018, a taxa de detecção foi de 9,6/1.000 nascidos vivos. Tendência crescente foi observada no número de óbitos por sífilis congênita nos anos de 2014 a 2018. Houve predomínio de gestantes com a faixa etária entre 20 e 29 anos (52,0%), com baixa escolaridade (31,3%) e de cor parda (77,1%). A maioria das gestantes infectadas realizaram acompanhamento pré-natal (79,8%), porém com esquema de tratamento inadequado (59,2%), bem como sem o tratamento do parceiro (59,5%). Conclusão: a sífilis congênita está em crescimento na Região Nordeste, acompanhado pelo tratamento inadequado no pré-natal. Isto evidencia a importância de novas abordagens em saúde, com a finalidade de capacitação dos profissionais, especialmente da Atenção Primária à Saúde, para prevenção, rastreamento e tratamento efetivo da sífilis em gestantes.
Relação dos componentes da síndrome metabólica com os índices lipídicos e parâmetros antropométricos em trabalhadores rurais: análise fatorial exploratória
Authors: Couto Analie Nunes , Schwanke Carla Helena Augustin , Pohl Hildegard Hedwig
Published: August 2022

Justificativa e Objetivos: A busca por indicadores simples e rápidos de rastreio de síndrome metabólica (SM) é importante, devido à sua alta frequência na população adulta. Contudo, esse aspecto é pouco explorado na população rural brasileira. O objetivo deste estudo foi verificar a relação dos componentes da SM com índices lipídicos e parâmetros antropométricos em trabalhadores rurais. Métodos: Estudo transversal com trabalhadores rurais com 18 anos ou mais. A SM foi determinada pelo critério harmonizado. Foram investigados os seguintes componentes da SM: triglicerídeos (TG), glicose em jejum (GLI), pressão arterial sistólica (PAS) e diastólica (PAD), HDL-c e circunferência da cintura (CC). Foram analisados os parâmetros antropométricos - índice de massa corporal (IMC), relação cintura/estatura (RCE) e percentual de gordura corporal (%G) -, bem como os índices lipídicos - índice triglicerídeos glicemia (TyG), produto de acumulação de lipídios (LAP) e índice de adiposidade visceral (VAI). Foi realizada análise fatorial exploratória que incluiu, no modelo I, os parâmetros antropométricos e, no modelo II, os índices lipídicos. Resultados: Dos 167 indivíduos investigados, 21,0% eram idosos (≥60 anos), 39,5% do sexo masculino e 61,1% apresentaram SM, com maior frequência no sexo feminino. O modelo II respondeu a maior variância explicada (78,43%), incluindo os fatores metabólico (VAI, LAP, TyG, TG e o -HDL-c), cardiometabólico (PAS, PAD e CC) e glicêmico. O modelo I explicou 70,4% da variância, incluindo os fatores excesso de peso, pressão arterial e lipídico/glicêmico. Conclusão: o modelo que incluiu os índices lipídicos explicou a maior variância observada e o VAI apresentou a carga mais significativa desse fator.
Qualitative research data collection in the context of the new coronavirus pandemic
Authors: Dias Ernandes Gonçalves
Published: August 2022

cartas ao editor não precisa de resumo
Validity of the Health-Related Quality of Life Instrument with 8 Items (HINT-8) in the Korean Elderly: A Cross-Sectional Study
Authors: Kim Seon-Ha , Kim Miok
Published: August 2022

Purpose: This study evaluated the validity of the 8-item Health-Related Quality of Life (HINT-8) instrument for older adults in Korea. Methods: This study used data from the 2019 Korean National Health and Nutrition Examination Survey. Health-related quality of life distribution and the ceiling effect were investigated using the HINT-8 and EuroQol-five-dimensions three-level version (EQ-5D-3L) for 1,519 people aged 65 or older in Korea. To examine the known-group validity, the difference between the HINT-8 and EQ-5D-3L utility indexes according to general and disease-related characteristics was analyzed. To examine the convergence validity, the correlations between each domain and the HINT-8 and EQ-5D-3L indexes were evaluated. Results: The HINT-8 (3.6%) and EQ-5D-3L (51.3%) answered that there were no problems across all items. The HINT-8’s ceiling effect was much lower than that of the EQ-5D-3L. The utility index of quality of life in older adults was .76 in the HINT-8 and .88 in the EQ-5D-3L. For each variable category, both the HINT-8 and EQ-5D-3L indexes showed a statistically significant difference. In other words, the quality-of-life index was lower for women, those of higher age, a lower education level, lower income level, hospitalization or outpatient visits, or high stress level. The correlation between the similar domains of the HINT-8 and EQ-5D-3L was higher than that of the other domains. The correlation coefficient between the HINT-8 and EQ-5D-3L indexes was .60 (p<.001). Conclusion: The HINT-8 showed adequate validity to measure health-related quality of life for Korean older adults.
The Influence of Death Perception and Terminal Care Stress on Terminal Care Performance of Nurses Working in Long-Term Care Hospitals: A Cross-Sectional Study
Authors: Kim Ja-Young , Lee Hanyi
Published: August 2022

Purpose: The purpose of this study was to investigate the effects of death perception and terminal care stress on terminal care performance of nurses working in long-term care hospitals.Methods: The participants included 160 nurses working in 7 long-term care hospitals with more than 150 beds in Gyeonggi Province. Data collection was conducted from July 12 to August 13, 2021. The independent t-test, Pearson correlation, and multiple linear regression were used for data analysis.Results: Of the participants, 126 (78.8%) were women, and 76 (47.5%) had a religion. The mean total clinical experience was 11.48±9.14 years; 80 (50.3%) participants had been involved in 1-18 terminal care nursing sessions, and 87 (54.4%) had been involved in terminal care nursing education. Gender (β=.17, p=.030) and positive death perception (β=.27, p=.001) affected terminal care performance.Conclusion: A professional and systematic terminal nursing care education program that can facilitate positive death perceptions of hospital nurses is needed, and it is necessary to prepare a specialized system that considers nursing hospitals’ characteristics. In addition, research on terminal care performance targeting male nurses in hospitals and the effects of the working environment and health care system of hospitals on the terminal care performance of hospital nurses is suggested.
Non-pharmacological Intervention for Wandering Behavior in Dementia: A Systematic Review and Meta-analysis
Authors: Kim Yoojin , Cho Eunhee
Published: August 2022

Purpose: The present study aimed to explore the types of non-pharmacological interventions and evaluate their effectiveness in reducing wandering behavior in patientis with dementia.Methods: This systematic review and meta-analysis followed the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guideline. Searching eight databases (Cochrane, Ovid-MEDLINE, EMBASE, CINAHL, PubMed, PsycInfo, RISS, KISS, and KMBASE) yielded 899 related studies. Two reviewers independently assessed the quality of these studies, using Revised Cochrane risk of bias for randomized trials (ROB) 2.0 and Risk of Bias Assessment tool for Non-randomised Study (ROBANS) 2.0, based on this study design. The Algase Wandering Scale related to wandering behavior reported the standardized mean differences and their 95% confidence intervals.Results: A total of seven studies, consisting of four randomized controlled trials (RCTs) and three quasi-experimental studies, met the inclusion criteria. Among non-pharmacological interventions, aromatherapy was the most common. However, therapeutic contact, therapeutic companion robot, tailored activity program, combining physical activity, memory recall, music therapy, and multisensory stimulation were also performed in one study, respectively. In a meta-analysis (RevMan 5.4), non-pharmacological interventions reduced wandering behavior in patients with dementia and mild to moderate functional impairments (p=.003).Conclusion: The result of this meta-analysis suggests that non-pharmacological interventions are generally associated with reduced wandering behavior among patients with dementia and mild-moderate functional impairment. However, it is necessary to develop a more detailed non-pharmacological intervention for patients with dementia and wandering behavior according to their disease stage and characteristics.
La El efecto de la desvinculación moral sobre el acoso escolar, el ciberacoso y otros comportamientos disruptivos en niños(as) y adolescentes. Una revisión de la literatura
Authors: GÓMEZ TABARES ANYERSON STITHS , Correa Duque María Cristina
Published: August 2022

Introducción: Un creciente número de estudios han demostrado vínculos consistentes entre la teoría de la desvinculación moral de Bandura y los comportamientos disruptivos e inhumanos. Recientemente se han explorado las relaciones directas e indirectas de la desvinculación moral con el acoso escolar, el ciberacoso y otros comportamientos agresivos en niños(as) y adolescentes, lo cual amerita una revisión de los principales hallazgos.
Objetivo: Revisar la literatura y evidencia empírica sobre el efecto de la desvinculación moral en la participación de niños(as) y adolescentes en el acoso escolar, el ciberacoso y otros comportamientos agresivos.
Método: Se trató de un estudio de revisión documental. La búsqueda bibliográfica se efectuó en la Web of Science. Se incluyeron 45 estudios empíricos para el análisis.
Resultados: Se encontró que la desvinculación moral y sus diferentes estrategias sociocognitivas tienen efectos directos e indirectos que predicen la participación de niños(as) y adolescente en el acoso escolar, el ciberacoso, comportamientos agresivos y antisociales. Adicionalmente, la empatía, las relaciones de amistad, la crianza, las tendencias prosociales, la ira y los rasgos insensibles-no emocionales son factores que, en conjunto, contribuyen al desarrollo, mantenimiento o disminución de conductas de acoso y ciberacoso. También se reportó que los hombres presentan una mayor tendencia que las mujeres al acoso escolar, el ciberacoso, la agresión y uso de la desvinculación moral.
Conclusiones: Se señala la importancia de los procesos de cognición moral para el desarrollo de estrategias de intervención psicoeducativa y psicosocial destinadas a prevenir y reducir el acoso y ciberacoso en niños(as) y adolescentes.
EVALUATION OF TEACHER READINESS USING THE CIPP MODEL IN LIMITED FACE-TO-FACE LEARNING
Authors: Oktarina Helda , Jasiah Jasiah , Rizal Setria Utama
Published: August 2022

This study is to describe the readiness of teachers in Limited Face-to-face Learning (PTMT) during the COVID-19 pandemic in the 2021 academic year. This is motivated by the importance of teacher readiness in dealing with the Covid-19 pandemic, namely by implementing Limited Face-to-face Learning (PTMT). in the teaching and learning process. This study uses a method with a qualitative approach to the type of evaluation research using the CIPP model. The subjects of this study were two PAI subject teachers and Budi Pekerti. The results of this study indicate that teacher readiness is viewed from the four components in the CIPP model as follows; 1) the context component of teacher readiness in learning planning that the teacher downloads the lesson plans and syllabus from the internet. The learning objectives are not formulated based on the ABCD formula. Learning activities follow the lesson plans from the internet and there is no assessment in the lesson plans. LKPD uses multiple choice daily test sheets. Instructional media using the blackboard 2) The input component of teacher readiness in learning in terms of methods using lectures, questions and answers and assignments. The material aspect is taken in the student book. 3) The components of the learning process process, there are several activities that have not been carried out, such as the preliminary activities the teacher does not convey the learning objectives, in the core activities many learning steps are not carried out and in the closing activities the teacher does not conduct an assessment. 4) The product component of student learning outcomes is seen from the affective, cognitive and psychomotor aspects.
DEVELOPMENT OF ANDROID APPLICATION LEARNING MEDIA USING ISPRING SUITE 9 TO INCREASE STUDENT LEARNING MOTIVATION
Authors: Azzahrah Aida , Budiman Indra Adi , Haryanti Yuyun Dwi , Mahpudin Mahpudin
Published: August 2022

The purpose of this research is to develop an android-based learning media in thematic for grade IV elementary schools in Cikalong 1 to increase learning motivation. This research uses the type of research and development, the development model used in this research is ADDIE. The ADDIE development model has five stages namely, analysis, design, development, implementation, and evaluation. The result of the research on the development of the developed learning media obtained an average value of the level validated by material experts and media experts which was 87,05% with the valid category. The results of the questionnaire response from the teacher and 20 students obtained practicality of 91,25% and the result of the student's response questionnaire obtained a percentage of 92,12% and the result of the student motivation test percentage of 93%, meaning that the android application media attract students attention and increase students learning motivation.
LEARNING FROM HOME: SCHOOL AND PARENTS COLLABORATION IN MI MA'ARIF DARUSSALAM PRAMBANAN, YOGYAKARTA
Authors: Rahmi Rina , Fadhil Ismuhul
Published: August 2022

The application of online learning during the covid-19 pandemic requires parents to be involved in the learning process. Learning will not be carried out effectively and efficiently if parents do not contribute to the learning objectives that have been set. This study aims to obtain information about the form of collaboration between parents and teachers carried out during online learning. The research method used is qualitative with a descriptive approach where the data source consists of primary and secondary data. The data collection techniques in this study used observation, interviews, and documentation. Meanwhile, the data analysis technique was processed through three stages, namely data reduction, data presentation, and conclusion drawing. The results showed that the form of collaboration between parents and the school was by forming an organization chaired by one of the guardians of the students named Paguyuban. This organizational structure was formed to facilitate communication and collaboration between schools and parents. In addition, the purpose of the organization is also as a forum for discussion of policies that will be implemented by the school based on the decision of the Head of School. As for the form of collaboration between parents and the school, parents act as providers of facilities, educators, and supervisors during the implementation of online learning. It is hoped that the collaboration between parents and the school will not only last during the implementation of online learning, but can be sustainable with or without the pandemic that is sweeping the world today so that innovative, collaborative, effective, and efficient education can be realized.
Reflections on History from Below
Authors: Rediker Marcus
Published: August 2022

History from below is insurgent history, deriving much of its popularity and power from movements from below. The phrase had its modern origin in the 1930s, when Lucien Febvre, Georges Lefebvre, and A.L. Morton used it to discuss the history of working people in France and England. The term exploded into wider international usage in the 1960s and 1970s as various movements arose to demand new histories. In the US and many other parts of the world the civil rights and Black power movements demanded a consideration of the past that took seriously the issues of race and slavery. Anti-war and anti-colonial movements, especially those protesting the Vietnam War, called for rethinking the histories of empire and resistance. The women’s rights movement made perhaps the greatest challenge to conventional histories, insisting that the larger part of humanity be included. All of these movements asked, who is a proper subject of history? Who is in and who is out? History from below, as a politicized type of social history, arose to answer these questions.
Ağaç malzeme yüzeylerine uygulanan poliüretan verniklerin parlaklığına ısıl işlem yöntemi ve işlem sıcaklığının etkisi
Authors: KOÇ Erol , PELİT Hüseyin
Published: August 2022

Bu çalışmada, farklı yöntemlerle ve farklı sıcaklık seviyelerinde ısıl işlemli ağaç malzeme yüzeylerine uygulanan poliüretan verniklerin parlaklık özellikleri incelenmiştir. Kayın (Fagus sylvatica L.) ve sarıçam (Pinus silvestris L.) odunu örnekleri üç farklı yöntem (ThermoWood, yağlı işlem ve sıcak hava) ve üç farklı sıcaklık (170 °C, 190 °C ve 210 °C) uygulanarak ısıl işleme tabi tutulmuştur. Daha sonra örnek yüzeyleri endüstriyel uygulamalara göre poliüretan vernik ile kaplanmıştır. Parlaklık ölçümleri TS EN ISO 2813 esaslarına uyularak gerçekleştirilmiştir. Verniksiz örnekler için, yağlı işlem yöntemi ile ısıl işlem görmüş örneklerde daha düşük parlaklık değerleri belirlenmiştir. ThermoWood ve sıcak hava yöntemleri ile muamele edilmiş örneklerde parlaklık değerleri benzer bulunmuş ve bu örneklerde, düşük sıcaklıktaki (170 °C) ısıl işlem sonrası parlaklıklar kontrol örneklere göre artmıştır. Vernikli örneklerde ise ısıl işlem yönteminin etkisi parlaklık üzerinde önemsiz bulunmuştur. Diğer taraftan, hem verniksiz hem de vernik uygulanmış örneklerde ısıl işlem sıcaklığı artışına bağlı olarak yüzey parlaklık değerleri azalmıştır.
Bakteriyel selüloz ve boraks katkılı atık gazete kağıtlarının termal ve optik özelliklerinin incelenmesi
Authors: ERSOY KALYONCU Evren , PEŞMAN Emrah
Published: August 2022

Bu çalışmada geri dönüştürülmüş atık gazete kağıtlarından üretilmiş kağıtlara katkı maddesi olarak bakteriyel selüloz (BS) ilavesinin ve kağıdın yanma özelliğini geciktirmek amacıyla boraks pentahidrat (Na2B4O7.5H2O) uygulamasının, üretilen kağıtların termal ve optik özellikleri üzerine etkileri araştırılmıştır. Boraks uygulaması için daldırma yöntemi seçilmiş olup karşılaştırma yapabilmek için üretim esnasında boraks ilavesi de çalışılmıştır. Kağıtların yanma karakteristikleri ve kinetiğini belirlemek için termal özellikleri belirlenmiştir. Optik özellikleri için parlaklık, sarılık ve renk değerleri (L*,a*,b*) belirlenmiştir. TGA verileri değerlendirildiğinde daldırma yöntemi ile boraks uygulaması sonucu dönüm noktası sıcaklığının 377,53 °C’den 335,55 °C’ye düştüğü, sadece BS katkısı ile 379,53 °C’ye bir miktar artış gösterdiği tespit edilmiştir. BS katkılı kağıtların daldırma yöntemi ile boraks uygulaması sonucunda dönüm noktası sıcaklığının 334,24 °C’ye düştüğü ve %44,03 oranı ile diğer örneklere göre en yüksek 590 °C deki kalıntı miktarı verdiği belirlenmiştir. Sonuç olarak daldırma yöntemi ile boraks uygulaması yapılan BS katkılı kağıtların termal dayanımlarının diğerlerine göre daha iyi olduğu, BS ve boraksın kağıdın yanması sırasında kalori oluşumunu azalttığı dolayısı ile yanmayı hızlı bir şekilde sonlandırdığı, optik özellikler açısından BS katkısının ve boraks uygulamasının kağıdın parlaklık değerini azalttığı, sarılık değerini arttırdığı belirlenmiştir.