bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Fitness Barometer: A Best Practice Example for Monitoring Motor Performance With Pooled Data Collected From Practitioners
Authors: Eberhardt Tanja , Bös Klaus , Niessner Claudia 
Published: December 2021

Introduction: Motor Performance (MP) in children is an important resource for their future active lifestyle and health. Monitoring of MP is crucial to derive information of trends and to implement specific programs on the base of current MP levels. A variety of MP assessment tools exist, making it difficult to determine a “gold-standard” for assessment and to compare the findings. In Germany, the German Motor Test 6–18 (GMT 6–18) and Kinderturntest Plus 3–10 (KITT+ 3–10) are widely used MP assessment tools. The aim of this paper is to show which key questions can be answered within the context of a best practice example of a MP assessment tool and what can be derived from this for a practical application (the Fitness Barometer).Methods: The raw data of the Fitness Barometer was collected with the MP assessment tools GMT 6–18 and KITT+ 3–10 from 2012 through 2020. Data was pooled anonymously with the e-Research infrastructure MO|REdata and categorized into percentiles for MP and BMI. Overall, we included data of 23,864 children for the statistical analyses. T-tests for independent samples, percentage frequency analysis, descriptive statistics (chi- square-test) and single analysis of variance were conducted.Results and Discussion: Children tested reached a mean value of 57.03 (SD = 18.85). Of the sample, 12.7% children were overweight or obese and there is a significant difference between age groups [χ(4)2 = 178.62, p &lt; 0.001, Cramer V = 0.09; n = 23.656]. The relationship between BMI category and mean value of MP was significant [F(4,19,523) = 224.81, p &lt; 0.001]. During 2020, the year of the COVID-19 pandemic, mean value of endurance and speed decreased [Welch's F(1,573) = 8.08, p = 0.005; Welch's F(1,610) = 35.92, p &lt; 0.001]. The GMT 6–18 and KITT+ 3–10 are valid, objective, reliable, and economic MP assessment tools for monitoring MP levels and derive added practical value. Specific programs and interventions should focus on the findings of these. The Fitness Barometer is a best practice example how a standardized assessment tool of monitoring MP point to trends on which practical evidence-based suggestions can be derived with many various partners and expertise.
Modulated Electro-Hyperthermia Supports the Effect of Gemcitabine Both in Sensitive and Resistant Pancreas Adenocarcinoma Cell Lines
Authors: Forika Gertrud , Kiss Eva , Petovari Gabor , Danko Titanilla , Gellert Aron Bertram , Krenacs Tibor 
Published: December 2021

The poor prognosis of pancreatic ductal adenocarcinoma (PDAC) is frequently associated to high treatment resistance. Gemcitabine (GEM) alone or in combination is the most used chemotherapy for unresecable PDACs. Here we studied whether modulated electro-hyperthermia (mEHT), a non-invasive complementary treatment, can support the effect of GEM on PDAC cells in vitro. The LD20 for the GEM-resistant Panc1 cells proved to be 200× higher than for the drug-sensitive Capan1. The mEHT alone caused significant apoptosis in Capan1 cultures as confirmed by the elevated SubG1 phase cell fraction and increased number of cleaved Caspase-3 positive cells 48 h after treatment, with an additive effect when GEM was used after hyperthermia. These were accompanied by reduced number of G1, S, and G2/M phase cells and elevated expression of the cyclin-dependent kinase inhibitor p21waf1 protein. In GEM-resistant Panc1 cells, an initial apoptosis was detected by flow cytometry 24 h after mEHT ± GEM treatment, which however diminished by 48 h at persistent number of cleaved Caspase-3 positive tumor cells. Though GEM monotherapy reduced the number of tumor progenitor colonies in Capan1 cell line, an additive colony inhibitory effect of mEHT was observed after mEHT + GEM treatment. The heat shock induced Hsp27 and Hsp70 proteins, which are known to sensitize PDAC cells to GEM were upregulated in both Capan1 and Panc1 cells 24 h after mEHT treatment. The level of E-Cadherin, a cell adhesion molecule, increased in Capan1 cells after mEHT + GEM treatment. In conclusion, in GEM-sensitive PDAC cells mEHT treatment alone induced cell death and cell cycle inhibition and improved GEM efficiency in combination, which effects were milder and short-term up to 24 h in the GEM-resistant Panc1 cells. Our data further support the inclusion of hyperthermia, in particular of mEHT, into the traditional oncotherapy regimens of PDAC.
Predictor-Corrector Interior-Point Algorithm for the General Linear Complementarity Problem
Authors: Darvay Zsolt , Füstös Ágnes 
Published: December 2021

Abstract
We study a predictor-corrector interior-point algorithm for solving general linear complementarity problems from the implementation point of view. We analyze the method proposed by Illés, Nagy and Terlaky [1] that extends the algorithm published by Potra and Liu [2] to general linear complementarity problems. A new method for determining the step size of the corrector direction is presented. Using the code implemented in the C++ programming language, we can solve large-scale problems based on sufficient matrices.
Development of a Mechatronic System for Demonstration Purposes
Authors: Györkovács István , Forgó Zoltán 
Published: December 2021

Abstract
The aim of the paper is to present a modular system, with the help of which it is possible to reveal the structure and analysis of a mechatronic system, taking into account several disciplines that contribute to the structure of the system. The planned system will include devices from different disciplines, the operation and coordination of which will be observable. The designed system is a two-degree-of-freedom mechanism with a translational and a rotary joint. The movement of the joints are obtained by different types of energy converters (pneumatic, electric). The replacement of the different types of drives can be performed quickly and easily without drastically changing the system setup. The simulations are implemented using the MATLAB Simscape software package.
Optical Inspection of CPVC Fitting Elbows and Fault Diagnosis of the Production Process
Authors: Korsoveczki Gyula , Bencsik Balázs , Husi Géza 
Published: December 2021

Abstract
The topic of this study is the optical inspection of CPVC fitting elbows concerning the geometric parameters that can be detected in 2 dimensions. Based on the evaluation of the results, fault diagnosis has been set up for the production line by statistical calculations. The optical inspection was carried out in the Vision Development Module software environment produced by National Instruments, and the data were evaluated using Microsoft Excel.
Comparative Analysis of Native and Cross-Platform iOS Application Development
Authors: Kovács Márk , Johanyák Zsolt Csaba 
Published: December 2021

Abstract
Nowadays, mobile applications are developed for more and more areas, providing great help for our everyday lives. When designing a mobile application, the first important decision to make is to choose the targeted platform. Is it only phone or tablet as well? Should the app run on Android or iOS, or should it be available on both mobile operating systems? In the latter case, besides the native development environments, it is worth considering a cross-platform development environment to write the software. This study investigates both the development and performance aspects of some possibilities for iOS application development, namely, native iOS development in Xcode, Xamarin.iOS, and Xamarin.Forms frameworks.
Números primos; método gráfico de la conjetura de GOLDBACH
Authors: Intriago Delgado Yandry Marcelo 
Published: December 2021

Mediante el uso de Microsoft Excel el siguiente trabajo examina las tablas de multiplicar desde una perspectiva distinta, con un método sencillo para encontrar la secuencia de los números primos en la línea continua de los números naturales , y así luego se identifican gráficamente los números que cumplen con la Conjetura de Goldbach, al realizar una triangulación con líneas que unen la series de los y ; siendo la notación: el cuadrado de los números naturales. A continuación, se trazan diagonales paralelas a las sucesiones y únicamente en cada elemento primo de la línea de los y así se obtienen intersecciones que cumplen con la conjetura fuerte de Goldbach. Se aplican fórmulas para calcular el número mínimo de intersecciones que se generan en un conjunto de los consecutivos. Así mismo, para obtener la conjetura débil de Goldbach, se puede usar el gráfico ya antes mencionado, y se emplean fórmulas combinatorias. Este método permite identificar el intervalo de afectación que tiene un elemento primo en la secuencia de los naturales y modelar una línea continua, que revela un gráfico similar al que se conoce como cometa de Goldbach.
Palabras clave: Gráfico, números primos, conjetura de Goldbach.
ABSTRACT
By the use of Microsoft Excel the following work examines the multiplication tables from a different perspective, with a simple method to find the sequence of the prime numbers in the continuous line of the natural numbers ( ), and then we can graphically identify the numbers that comply with the Goldbach Conjecture, when making a triangulation with lines that join the series of the and , in this article the notation: is the square of the natural numbers. Next, diagonals are drawn parallel to the sequence and only in each prime element of the line of the and thus intersections are obtained that meet the strong conjecture of Goldbach. Formulas are applied to calculate the minimum number of intersections that are generated in a set of consecutive . Likewise, to obtain the weak Goldbach conjecture, the aforementioned graph can be used, and combinatorial formulas are used. This method serves to identify the range of affectation that a prime element has in the sequence of the natural numbers, and to model a continuous line, which reveals a graph similar to what is known as Goldbach's comet.
Key words: Graph, prime numbers, Goldbach conjecture.
RESULTADOS SOBRE OPERADORES LLENOS EN ESPACIOS DE HILBERT
Authors: Rosales Edixo 
Published: December 2021

Se prueba, entre otros, el siguiente resultado: Sea T:H→H un operador autoadjunto inyectivo, y K:H→H un operador de Riesz, tal que K∈Alglat(T)∩{T}'. Si K:H→H es lleno, entonces T:H→H es lleno.

Palabras clave: Operador de Riesz, operador autoadjunto, operador lleno.

Abstract
It is proved here, among other results, the following: Let T:H→H be a self-adjoint injective operator, and K:H→H a Riesz operator, such that K∈Alglat(T)∩{T}'. If K:H→H is a full operator, then T:H→H is a full operator.

Keywords: Riesz operator, self-adjoint operator, full operator.

Resumo

O siguiente resultado, entre outros, está provado: Seja T:H→H um operador autoadjunto limitado abaixo, e K:H→H um operador de Riesz, tal qual K∈AlglatT⋂{T}^'. Se K:H→H é um operador completo, então T:H→H é um operador completo.
Palavras-chave: operador Riesz, operador autoadjunto completo.
UNA VERSIÓN LINEAL DEL PROBLEMA DE KURATOWSKI
Authors: Cohen Ismael , Wences Giovanni , Rodriguez Contreras Jorge , Reyes Linero Alberto Mario , Sanchez Anillo Rafael Segundo 
Published: December 2021

El presente estudio se enmarca dentro del paradigma de la investigación básica matemática. Nuestro trabajo está orientado hacia el planteamiento de una nueva versión conceptual y la construcción de una prueba formal del reconocido problema de clausura-complemento de Kuratowski en el marco de la teoría de los espacios vectoriales.

Palabras clave: Espacios vectoriales, Problema de Kuratowski, problema de cerradura y complemento.

Abstract
This study is framed into the basic mathematics research paradigm. This work is geared towards the statement of a new conceptual version and to the construction of a formal proof of the well-known Kuratowski closure-complement problem in the vector space theory frame.

Keywords: Kuratowski’s problem, Vector spaces, Closure-complement problem

Resumo
O presente estudo está enquadrado no paradigma da pesquisa matemática básica. Este trabalho está voltado para afirmação de uma nova versão conceitual e para a construção de uma prova formal do bem conhecido problema de complemento de roupas de Kuratowski no quadro da teoria linear do espaço.

Palavras chave: Problema de Kuratowski, Espaços vetoriais, Problema de fechamento-complemento
Control de Variables Asociadas con la Calidad en el Proceso de Corrugado Mediante el Uso de Gráficos de Control Multivariante
Authors: Vargas Ortiz Oscar Gonzalo , Márquez Víctor 
Published: December 2021

El propósito de esta investigación es estudiar el proceso de producción de cartón corrugado en la empresa Productora Cartonera S. A. (PROCARSA). Para ello se evaluó el comportamiento de las variables de calidad resistencia al aplastamiento de borde (ECT) y Separación de espiga (PAT). Posterior al análisis descriptivo, a cada variable de calidad se le ajustó un diseño factorial, considerando como factores a evaluar Operador, Flauta, Liner (Papel externo del cartón) y Empaque. Se determinó que estos factores influyen de manera significativa sobre las variables de calidad. Para el caso de la variable ECT, todos los componentes del modelo resultan significativos, mientras que para la variable PAT, solo resultan significativos los efectos principales, algunas interacciones de orden dos y la interacción de orden cuatro. Se evaluó la correlación entre las variables de calidad, resultado estadísticamente significativa, lo que llevó a descartar el uso de gráficos de control univariantes para monitorear el proceso. Luego, se construyó un gráfico de control multivariante para determinar si el proceso está trabajando bajo control. En la fase 1 se presentó una señal fuera de control. Finalmente, se eliminó el punto fuera de control y se obtuvieron los límites finales de control. Estos límites se usarán en adelante para evaluar y monitorear el proceso.

Palabra clave: Control, Multivariante, Hotelling, Calidad.

Abstract

The purpose of this research is to study the corrugated cardboard production process in the company Producer Carton S.A, PROCARSA. For this, the behavior of the quality variables resistance to edge crushing (ECT) and separation of dowel (PAT) was evaluated. After the descriptive analysis, a factorial design was adjusted to each quality variable, considering Operator, Flute, Liner, and Packaging as factors to be evaluated. It was determined that these factors have a significant influence on the quality variables. For the case of the ECT variable, all the components of the model are significant, while for the PAT variable, only the main effects, some interactions of order two, and the interaction of order four are significant. The correlation between the quality variables was evaluated, the result statistically significant, which led to discarding the use of univariate control charts to monitor the process. Then, a multivariate control chart was constructed to determine if the process is working under control. In phase 1 there was a signal out of control. Finally, the out-of-control point was eliminated and the final limits of control were obtained. These limits will be used from now on to evaluate and monitor the process.

Keywords: Control, Multivariate, Hotelling, Quality.
Lawfare y violencia política contra las mujeres
Authors: Buendía Soledad 
Published: December 2021

El presente artículo pretende ser el punto de partida de una investigación más profunda, busca colocar en el debate el fenómeno de Lawfare o guerra judicial en Ecuador y explicar cómo afecta de manera particular a las mujeres por razones de género. Partiendo del análisis de testimonios de mujeres políticas de la Revolución Ciudadana, de la información en redes sociales y en medios de comunicación se realiza una investigación documental. Dos categorías analíticas son utilizadas Lawfare y violencia política, buscando establecer cómo se relacionan en su aplicación concreta y las diferencias. En este sentido, determinaremos la naturaleza del asedio a quienes, desde una legítima oposición, han sido sujetos de odio y venganza política, develaremos el rol de las instituciones judiciales y de control, así como el de la prensa, utilizadas como herramientas de persecución para destruir en particular a las mujeres por razones de género, así demostraremos que existen diferencias de género en la guerra judicial.

Palabras clave: género, violencia, justicia, lawfare.
Análisis comparativo de suelo de campo y laboratorio para la medición de su capacidad portante con ensayos de Valor de Soporte de California (CBR) y Cono Dinámico de Penetración (DCP) en la Universidad Técnica de Manabí.
Authors: Mejía Vera Cristopher Alexander , Gilces Delgado Jaime Ricardo , Ortiz Hernández Eduardo Humberto , García Vínces Jimmy Jeffrey 
Published: December 2021

The purpose of this investigation is to determine direct correlations by means of laboratory tests for the index of resistance to the cut of the Dynamic Cone of Penetration (DCP), with the resistance to cut California Bearing Ratio (CBR) of the soil, where it presents an alternative to establish Design criteria for pavement structures, based on physical and mechanical tests, taking samples by means of soil exploration, they were subsequently processed in the laboratory demonstrating their properties where silts and clays with a high degree of plasticity predominate.
Correlations proposed by (Van Vuuren, 1969) were taken, which experimentally mentions an equation suitable for all types of soils and the most accurate according to its reliability, the Dynamic Cone developed by (Scala, 1956), which, experimentally presents the following results in the field: The N°1 poll a 4.7% CBR, the N°2 poll a 3.61% CBR and the N°3 poll a 3.37% CBR, these mentioned parameters were obtained in a corresponding way from the DCP index of 40 mm/stroke, 50 mm/stroke, and 54 mm/stroke, in addition to laboratory tests that a more conservative parameter results were obtained for the poll N°1 a CBR of 3.98% the Poll, N°2 a CBR of 3.40% and the Poll N°3 a CBR of 3.20%.

Index Terms— Dynamic Cone of Penetration (DCP), California Bearing Ratio (CBR), Poll, Correlations, Test.
Análisis del tránsito peatonal, alternativas y soluciones a congestionamientos en la Avenida América, entre Avenida Manabí y Calle Ramón Fernández. Portoviejo-Manabí
Authors: Ruiz Castillo José Ignacio , Vargas Zambrano Diego Armando , Delgado Gutiérrez Daniel Alfredo , Ortiz Hernández Eduardo Humberto 
Published: December 2021

El tránsito peatonal es un fenómeno de la sociedad moderna que, por una creciente tendencia hacia la mitigación en el impacto del congestionamiento vehicular, la contaminación y proponer una movilidad sostenible, se ha convertido en un importante foco de estudio para las ciudades. El presente trabajo tuvo como objetivo analizar el tránsito peatonal dentro varias calles en la ciudad de Portoviejo, para identificar problemas y proponer posibles soluciones. Para su ejecución, se aplicó una investigación de campo basada en la observación y en la aplicación de un aforo peatonal apoyado de una encuesta dirigida a las personas que transitan por el área de estudio. Los resultados indicaron que el punto de congestión peatonal tuvo lugar en la Avenida América entre Calle Pedro Zambrano y Avenida Manabí, especialmente en horario matutino.

Palabras clave: Tránsito; tránsito peatonal; problemas de movilidad; movilidad urbana; movilidad sostenible.

Abstract
Pedestrian traffic is a phenomenon of modern society that, due to a growing trend towards mitigating the impact of traffic congestion, pollution and proposing sustainable mobility, has become an important focus of study for cities. The objective of this work was to analyze the pedestrian traffic within several streets in the city of Portoviejo, to identify problems and propose possible solutions. For its execution, a field investigation was applied based on observation and the application of a pedestrian count supported by a survey directed at people who pass through the study area. Results indicated that the pedestrian congestion point occurred on Avenida América between Calle Pedro Zambrano and Avenida Manabí, especially in the morning.

Keywords: Transit; pedestrian traffic; mobility problems; urban mobility; sustainable mobility.
Exploration of sedentary behaviour among GPs: a cross-sectional study
Authors: Mayne Richard S , Hart Nigel D , Tully Mark A , Wilson Jason J , Brønd Jan C , Heron Neil 
Published: December 2021

BackgroundSedentary behaviour, which may have increased among GPs due to increasing use of telemedicine, is associated with many illnesses and increased all-cause mortality.AimTo explore levels of sedentary behaviour among GPs and General Practice Specialty Trainees (GPSTs).Design & settingSequential, cross-sectional design (initial online sedentary behaviour questionnaire and subsequent thigh-worn accelerometer substudy) of GPs and GPSTs in Northern Ireland.MethodSelf-reported questionnaire data were aggregated and compared with device-measured accelerometry data.ResultsData from 353 participants (17.7% of GPs and GPSTs in Northern Ireland) revealed doctors in general practice self-reported higher workday sedentary time (10.33 hours, SD 2.97) than those in secondary care (7.9 hours, SD 3.43 [mean difference {MD} 2.43 hours;P<0.001]). An active workstation (for example, sit-stand desk), was used by 5.6% of participants in general practice, while 86.0% of those without one would consider using one in future. Active workstation users self-reported lower workday sedentary time (7.88 hours, SD 3.2) than non-users (10.47 hours, SD 2.88 [MD –2.58 hours,P= 0.001]). Accelerometer substudy participants underestimated their workday sedentary time by 0.17 hours (95% confidence interval [CI] = –1.86 to 2.20;P= 0.865), and non-workday sedentary time by 2.67 hours (95% CI = 0.99 to 4.35;P= 0.003). Most GPs (80.7%) reported increased workday sitting time compared to prior to the COVID-19 pandemic, while 87.0% would prefer less workday sitting time.ConclusionGPs have high levels of workday sedentary time, which may be detrimental to their health. It is imperative to develop methods to address sedentary behaviour among GPs on workdays, both for their own health and the health of their patients.
Hibriditas Aluk Todolo dan Kekristenan Dalam Ritual Ma’bulle Tomate Di Gandangbatu
Authors: Rapa' Ones Kristiani 
Published: December 2021

Abstrak: Tulisan ini bertujuan untuk melihat hibriditas budaya dalam Aluk Todolo dan Kekristenan melalui Ritual Ma’bulle Tomate di Gandangbatu. Ritual ini merupakan salah satu bagian dalam rangkaian ritus yang paling terkenal di Toraja yaitu Rambu Solo’. Dalam tulisan ini penulis menggunakan metode penelitian kulitatif melalui pengumpulan data observasi dan wawancara. Adapun teori yang digunakan dalam tulisan ini yakni teori dari Homi K. Baba dalam buku yang berjudul The Location Of Culture. Teori tersebut mengatakan bahwa hibriditas budaya merupakan ruang ke tiga yang seharusnya menjadi ruang diskursif karena melalui hal ini telah terjadi pelanggaran batas ruang yang menandakan suatu kontradivisi dari objek, penggunaan, makna, ruang dan properti dalam suatu tradisi. Dari hasil penelitian, penulis menemukan bahwa Aluk Todolo menggunakan badong sebagai syair duka dalam ritual Ma’bulle Tomate dan kekristenan menggunakan nyanyian rohani. Melalui teori tersebut disimpulkan bahwa hibriditas budaya Aluk Todolo dan kekristenan dalam ritual Ma’bulle Tomate Di Gandangbatu merupakan titik tolak perjumpaan yang indah antara dua kebudayaan tersebut.
Kata Kunci: Hibriditas, Ma’bulle, Tomate, Masyarakat, Ritual