bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Six-Week Plyometric Training Program Improves Explosive Power and Agility in Professional Athletes of East Java
Authors: Permana Dwinda Abi , Kusnanik Nining Widyah , Nurhasan Nurhasan , Raharjo Slamet 
Published: December 2022

The study purpose was to prove the effectiveness of a plyometric training program in increasing explosive power and agility in professional athletes of East Java.
Materials and methods. This study is a pre-experiment with a research design of One Group Pretest-Posttest. A total of 15 male athletes from athletics and swimming at the Pusat Pendidikan dan Pelatihan Olahraga Pelajar (PPLP) East Java, Indonesia, aged 15–17 years, body mass index (BMI) 18.5–24.0 kg/m², normal blood pressure, normal resting heart rate, voluntarily participated in the study. The plyometric training program (hurdle-box jumps) was carried out for 30 minutes/training session with an intensity of 80-90% HRmax with a frequency of 3x/week for six weeks. Measuring the explosive power of the horizontal leg muscles used the Standing Broad Jump Test, while measurement of the explosive power of the vertical leg muscles used the Digital Jump Meter Test. Measurement of agility used Shuttle Run Test, and explosive power and agility were measured during pre-training and six weeks post-training. Data analysis used the Paired Sample T-Test with a significance level of 5% using the Statistical Package for Social Science (SPSS) version 21 software.
Results. The results of the study showed that there was a significant difference in the average increase in explosive power horizontally, vertically, and agility between pre-training vs. post-training (p ≤ 0.001).
Conclusions. In general, it can be concluded that the plyometric training program (hurdle-box jumps) carried out 3x/week for six weeks effectively increases the explosive power of the horizontal leg muscles, the explosive power of the vertical leg muscles, and increases agility.
Justification of the Selection Techniques in Martial Arts using Wald's Sequential Analysis
Authors: Podrigalo Leonid , Keo Shi , Podrihalo Olha , Оlkhovyi Oleh , Paievskyi Volodymyr , Kraynik Yaroslav 
Published: December 2022

The study purpose was to develop a selection technique in martial arts based on indices of physical development using Wald's sequential analysis.
Materials and methods. 12 anthropometric indicators were determined. 9 indexes of physical development were calculated on their basis. 16 elite athletes (candidates for masters and masters of sports) were divided into two groups. Group 1 included 7 athletes (judo, sambo, Greco-Roman and freestyle wrestling) aged 18.43±0.43. Group 2 included 9 kickboxing athletes aged 18.22±0.52.
Results. A prognostic table containing indices of physical development has been developed. The informativeness of the indicators varied within 296.15–1.73. The content of the prognosis consists of evaluating the results, determining the corresponding coefficients and summing these coefficients until one of the prognostic thresholds is reached. In accordance with generally accepted approaches, the value of the thresholds was set at the level of ±13, which corresponds to a probability of 95% (p<0.05). Exceeding the positive threshold improves an athlete's prospects in wrestling. Achieving a negative threshold corresponds to a perspective in kickboxing.
Conclusions. The conducted research made it possible to justify and develop a method for selecting martial arts athletes using indices of physical development. The proposed technique is based on Wald's sequential analysis and is a simple, informative and objective tool for the selection and prognosis of athletes' condition.
Nota Zero, e Agora?
Authors: Nasu Vitor Hideo , Silva Breno Gabriel da 
Published: December 2022

Objetivo: Analisar a nota zero dos estudantes de ciências contábeis no ENADE 2018 a partir da literatura sobre a qualidade da educação contábil e o propósito do ENADE.
Método: Trata-se de uma pesquisa de arquivo (archival) cujos microdados foram coletados do website do INEP. Ao todo, foram analisadas 52.847 observações por meio de análise descritiva e modelos de regressão binária.
Resultados: Há uma micro parcela de estudantes que zerou tanto a prova de formação geral (FG) como a de componente específico (CE). A razão destas notas zeros é a entrega do exame em branco. Apesar disso, quando as provas do exame foram exploradas separadamente, verificou-se que as notas zeradas se tornaram mais representativas, com forte concentração nas questões discursivas. Isso sustenta que existe uma necessidade maior de motivar os alunos a quererem resolver exercícios de contabilidade do tipo discursivo. Por outro lado, menor quantidade de notas zero foi observada para as questões objetivas. Isso pode estar associado ao costume de realizar provas em que a objetividade é característica predominante. Constatou-se, também, que o sexo, a idade, a modalidade de ensino e a região do curso são relevantes para explicar a chance de obtenção de nota zero.
Contribuições: O estudo traz lições educacionais a partir da nota zero, especialmente em relação as suas motivações e variáveis que podem aumentar ou reduzir a sua chance de ocorrência. Da mesma forma, traz reflexões críticas acerca da importância do ENADE e como motivar os alunos a fazê-lo, incluindo o debate de implicações regulatórias.
Lucky Form of Truth
Authors: Martínez Serrano Leonor María 
Published: December 2022

This article explores poet Mark Strand’s facet as an art critic and, more specifically, the way in which the pictorial universe of American painter Edward Hopper influenced his own poetry, both thematically and stylistically. Reading Hopper’s well-known oil on canvas House by the Railroad (1925) in a New York Times article entitled “Crossing the Tracks to Hopper’s World,” published on 17 October 1971, Strand dwells on “Hopper’s fascination with passage” (340). Years later, he would expand his critical exegesis of House by the Railroad and other canvasses by the American painter in a book-length essay titled Hopper (1994) in ways that are expressive of his own poetics. Both Strand and Hopper look at the world with an inquisitive gaze and capture moments in time with utter clarity to show that the self is a mystery and humans are transients yearning for a moment of revelation, a momentary stay against confusion.
Ocean-Wave Gradiometry: Visualizing and Extracting Propagation Features of the 15 January 2022 Tsunami Wavefield with Dense Ocean-Bottom Pressure Gauge Arrays
Authors: Ogiso Masashi , Tsushima Hiroaki 
Published: December 2022

Abstract
Dense geophysical observation networks have recently enabled monitoring the wavefield of sea-bottom pressure changes. Significant sea-bottom pressure disturbances were recorded by ocean-bottom pressure gauge (OBPG) arrays around Japan on 15 January 2022, the day of the massive eruption of Hunga Tonga–Hunga Ha’apai volcano in the Tonga Islands. At the same time, sea-surface height disturbances and atmospheric pressure disturbances were recorded by tide gauges around the Pacific Ocean and barometers around the world. Because the atmospheric disturbances may have affected the propagation of the sea-surface height changes, we investigated the propagation properties of the sea-bottom pressure disturbances recorded by the OBPG arrays around Japan using wave gradiometry. We found that the leading pressure disturbances propagated from southeast to northwest with a velocity expected from linear long-wave theory for ocean waves, that is, tsunamis. We also detected several later coherent sea-bottom pressure disturbances that propagated at the velocity of tsunamis. In addition, we detected anomalous short-period later phases of pressure disturbances with propagation directions more nearly north–south than those of the leading disturbances at the coast of southwestern Japan. These results indicate that the pressure disturbances recorded at the OBPG arrays propagated as tsunamis rather than sea-surface disturbances excited by atmospheric Lamb waves, although atmospheric pressure disturbances might have affected the amplitude of sea-surface height changes. This study demonstrates that wave gradiometry can be successfully applied to data from a dense OBPG array and may be suitable for real-time monitoring of sea-bottom pressure wavefields.
Investigating the dynamics of change in second language willingness to communicate
Authors: Nematizadeh Shahin 
Published: December 2022

For years, researchers have viewed willingness to communicate (WTC) as a personality-based, trait-like tendency and employed quantitative measures, seemingly overlooking the WTC changes during communications. A new line of inquiry, however, has taken a dynamic approach to investigating the WTC changes and the factors triggering them during communications. The present mixed-methods study incorporated an idiodynamic method with 20 Farsi-speaking English as a Second Language participants who performed three-minute speaking tasks, rated their WTC changes, and attended stimulated recall interviews. A between-subjects repeated measures analysis of variance showed a statistically significant difference in the participants’ WTC from task to task. The WTC variation patterns were also clustered into seven categories that visualized the dynamics of WTC changes. In vivo coding of the stimulated recall interviews produced seven different categories of factors including possession of supporting ideas, individual, contextual, organizational, lexis-related, and grammar-related factors as well as the participants’ perceptions of their performance.
Sacrifização ambiental da Amazônia brasileira a partir do método DPSIR
Authors: Farias Érika Renata Pacheco , Szlafsztein Claudio Fabian 
Published: December 2022

Tem como objetivo identificar como acontece a configuração de uma zona de sacrifício e sua contextualização diante de cenário global e local, envolvendo os grandes projetos instalados sobre o território amazônico, responsáveis pelos riscos tecnológicos e a Sacrifização ambiental da região. A análise foi realizada com base em um levantamento bibliográfico e a aplicação da metodologia DPSIR (Driving Forces, Pressures, State, Impact, Responses). Assim, as Forças Motrizes (D) correspondem aos setores econômicos e atividades antrópicas causadoras dos Riscos Tecnológicos e das Zonas de Sacrifício Ambiental; a Pressão (P) representa os fatores responsáveis pela emissão de resíduos e, consequentemente, a degradação ambiental; o Estado (S) está relacionado aos processos químicos, físicos ou biológicos associados a qualidade do meio; os Impactos (I) evidenciam os danos ambientais sobre a população e ecossistemas e, por fim, as Respostas (R) relativas a políticas e objetivos estabelecidos em relação aos indicadores do modelo. A sacrifização ambiental amazônica revela a necessidade de políticas de ordenação do território baseada na gestão de riscos tecnológicos com vistas à garantia da segurança e justiça ambiental.
Ciencias, ciencia hegemónica y plan de desarrollo
Authors: Salazar Boris 
Published: December 2022

Para evaluar el papel de la ciencia en un posible gobierno progresista se utilizó un documento de la campaña de Gustavo Petro y Francia Márquez. La evaluación terminó en un debate fallido en el que ambas partes compartieron la idea errónea de una ciencia hegemónica, occidental o ancestral. Este artículo muestra que el texto apropiado para evaluar el papel de las ciencias es el Plan de Desarrollo del actual gobierno. La interacción dinámica entre sistemas complejos, ciencia del cambio climático, ciencias ambientales, ciencia de las ciudades –u ordenamiento territorial– y economía de la complejidad fundamenta la arquitectura del Plan y sus objetivos y proyectos estratégicos. Ningún gobierno colombiano había tomado tan en serio a las ciencias en el diseño de su hoja de ruta básica.
High-Frequency Capacitor with Working Substance "Insulator-Undoped Silicon-Insulator"
Authors: Poklonski N. A. , Anikeev I. I. , Vyrko S. A. 
Published: December 2022

The study of the parameters of capacitors with various working substances is of interest for the design and creation of electronic elements, in particular for the development of high-frequency phase-shifting circuits.The purpose of the work is to calculate the high-frequency capacitance of a capacitor with the working substance "insulator-undoped silicon-insulator" at different applied to the capacitor direct current (DC) voltages, measuring signal frequencies and temperatures.A model of such the capacitor is proposed, in which 30 µm thick layer of undoped (intrinsic) crystalline silicon (i-Si) is separated from each of the capacitor electrodes by 1 µm thick insulator layer (silicon dioxide).The dependences of the capacitor capacitance on the DC electrical voltage U on metal electrodes at zero frequency and at the measuring signal frequency of 1 MHz at absolute temperatures T = 300 and 400 K are calculated. It is shown that the real part of the capacitor capacitance increases monotonically, while the imaginary part is negative and non-monotonically depends on U at the temperature T = 300 K. An increase in the real part of the capacitor capacitance up to the geometric capacitance of oxide layers with increasing temperature is due to a decrease in the electrical resistance of i-Si layer. As a result, with an increase in temperature up to 400 K, the real and imaginary parts of the capacitance take constant values independent of U. The capacitance of i-Si layer with an increase in both temperature T and voltage U is shunted by the electrical conductivity of this layer. The phase shift is determined for a sinusoidal electrical signal with a frequency of 0.3, 1, 10, 30, 100, and 300 MHz applied to the capacitor at temperatures 300 and 400 K.
Assessment of Electrical Machines’ State Based on Mathematical Modeling of Defect Formation in Windings
Authors: Isaev A. V. , Suchodolov U. V. , Balakhonov D. V. 
Published: December 2022

The highest quality and timely diagnostics of windings’ state of various types of electrical machines including of asynchronous motors’ windings is an impoitant task. Among the existing diagnostic methods currently the most promising are those ones based on methods for analyzing resonance processes occurring in electrical machines. The aim of the article was to assess the possibility of use resonant processes occurring in electrical machines for qualitative diagnostics of their windings state using the asynchronous motors example, to build mathematical models that allow describing defect formation in windings and to analyze the deviation of mathematical models relative to the results obtained.Analysis of the influence of the level of interturn resistances, the number of closed turns and the location of closed turns in sections on the phase-frequency characteristics of asynchronous motors windings of various classes has been carried out. Mathematical models of the phase-frequency characteristics are obtained, coefficients of polynomials are determined and the relative discrepancy between these mathematical dependences relative to the experimental data is estimated depending on the considered parameters characterizing defects in the coils’ windings of electrical machines.Obtained mathematical models and coefficients for them can serve as the basis for construction of automated control and diagnostic systems for checking of the windings state of electrical machines including assessing the residual life of their work.
Wide-Azimuth, Broadband, and High-Density Seismic Technology and Its Application for Prediction of Residual Oil Distribution
Authors: Aliyeva G. , Wei X.D. , Liu Y. , Nie Q.H. , Dong J.X. , Chen X. , Yan X.H. , Yang K. , Hakro A.S. , Tian J.N. 
Published: December 2022

Abstract
—The paper focuses on the wide-azimuth, broadband, and high-density (WBH) seismic data application methodology, which was used to complete a more detailed structural interpretation of the K oilfield, to identify a number of low-relief structures in its periclinal parts, and to detect the potential residual oil zones (ROZ) in the oilfield. The obtained wide-azimuth, high-density field data and the results of broadband inversion are the main factors that increase the degree of ROZ prediction. A comprehensive analysis has shown that potential ROZ are arched faulted-nose structures in the periclinal parts of the oilfield, low-relief anticlines in the periclinal parts of the oilfield, and lithologic pinchout zones. Technical support has been provided for identifying ROZ in the given oilfield, and the basis has been laid for predicting the residual oil distribution in analogous oilfields with high productivity and high water cut that are at the middle and late stages of development.
Seminario en la formación docente y profesional: una forma de innovar en Educación Geográfica
Authors: Soler Osuna Diana , Pizzinato Liliana 
Published: December 2022

El artículo presenta los resultados de sistematización del seminario de estudio como alternativa metodológica para abordar ejes claves y oportunidades de innovación en la educación geográfica, cuya pregunta central analiza la relación entre epistemología y educación geográfica. En este análisis se entiende el aula como un espacio de aprendizaje que desborda el salón de clase tradicional, al ser posible construir desde el debate un conocimiento de referencia. El diseño, organización, ejecución y evaluación guarda este espíritu, constituyéndose en una posibilidad innovadora en la formación interdisciplinaria de profesionales de la geografía y de la docencia en ciencias sociales. Este ejercicio adopta como modalidad el seminario alemán con un grupo de estudiantes y docentes que participan en el Semillero de Investigación, Formación y Educación Geográfica Itinerantes del Proyecto Curricular de Ciencias Sociales de la Universidad Distrital Francisco José de Caldas y en el Proyecto de Difusión del Programa de Geografía y acompañamiento a colegios 2016-2022 de la Universidad Externado de Colombia, ambas ubicadas en Bogotá - Colombia.
The Impact of Salps on the Antarctic Krill Population - An Individual-based Modelling Study
Authors: Pietzsch Bruno Walter , Schmidt Aaron , Gröneveld Jürgen , Bahlburg Dominik , Meyer Bettina , Berger Uta 
Published: December 2022

Abstract
Background Krill and salps are key macro zooplankton grazers in the Southern Ocean ecosystem but due to differing habitat requirements, there used to be only little spatial overlap of both species. With ongoing climate change-induced seawater temperature increase and regional loss of sea ice, salps are now able to extend their spatial distribution into areas that are historically krill dominated and capable to increase rapidly due to asexual reproduction when environmental conditions are favorable. It is crucial to understand potential effects on krill since krill is a species of exceptional trophic significance of the Southern Ocean food web and negative impacts on krill could trigger cascading effects on its predators and prey. To address this question, we combined two individual-based models on salp and krill, which describe the whole life cycle of salp individuals as well as the dynamic energy budget of individual krill. The resulting new model PEKRIS (PErformance of KRIll vs. Salps) is used to simulate a krill population for 100 years under varying chlorophyll a concentration in the presence or absence of salps.
Results The investigated krill population properties (dynamics of krill abundance, mean length and yearly number of released eggs) were impacted but not significant by the presence of salps. On the other hand, salp abundance was significantly reduced if krill was present. The medians of krill and salp population properties deviated when the other species was introduced by <1% (150 individuals) for krill abundance, -25% (-417,934 eggs) for krill eggs, 2% (0.49 mm) for mean length of krill and -38% (-427 individuals) for maximum seasonal salp abundance.
Conclusions While no significant impact of salp presence on the krill population was detectable, a considerable reduction for eggs released by krill prevailed. In the future, the model could serve as a tool to investigate the possible effect of a climate change related increase in water temperature and the associated physiological effects on both species and, consequently, their population trends.
Search for 22Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes
Authors: Fougères Chloé , Santos Francois de Oliveira , Jose Jordi , Michelagnoli Caterina , Clément Emmanuel , Kim Yung Hee , Lemasson Antoine , Guimaraes Valdir , Barrientos Diego , Bemmerer Daniel , Benzoni Giovanna , Boston Andrew , Bottger Roman , Boulay Florent , Bracco Angela , Celikovic Igor , Cederwall Bo , Ciemala Michal , Delafosse Clement , Domingo-Pardo Cesar , Dudouet Jeremie , Eberth Jurgen , Fulop Zsolt , Gonzalez Vicente , Goupil Johan , Hess Herbert , Jungclaus Andrea , Kaşkaş Ayse , Korichi Amel , Lenzi Silvia , Leoni Silvia , Li Hongjie , Ljungvall Joa , Lopez-Martens Araceli , Menegazzo Roberto , Mengoni Daniele , Million Benedicte , Mrazek Jaromir , Napoli Daniel , Navin Alahari , Nyberg Johan , Podolyak Zsolt , Pullia Alberto , Quintana Begona , Ralet Damien , Redon Nadine , Reiter Peter , Rezynkina Kseniia , Saillant Frédéric , Salsac Marie-Delphine , Sánchez-Benítez Angel , Sanchis Enrique , Senyigit Menekse , Siciliano Marco , Smirnova Nadezda , Sohler Dorottya , stanoiu mihai , Theisen Christophe , Valiente-Dobon Jose Javier , Ujic Predrag , Zielinska Madalena 
Published: December 2022

Abstract
Classical novae are thermonuclear explosions in stellar binary systems, and important sources of 26Al and 22Na1-3. While γ rays from the decay of the former radioisotope have been observed through-out the Galaxy, 22Na remains untraceable. The half-life of 22Na (2.6 yr4) would allow the observation of its 1.275 MeV γ-ray line from a cosmic source. However, the prediction of such an observation requires good knowledge of the nuclear reactions involved in the production and destruction of this nucleus5. The 22Na(p, γ)23Mg5 reaction remains the only source of large uncertainty about the amount of 22Na ejected. Its rate is dominated by a single reso- nance on the short-lived state at 7785.0(7) keV in 23Mg6. In the present work, a combined analysis of particle-particle correlations and velocity-difference profiles is proposed to measure femtosecond nuclear lifetimes. The application of this novel method to the study of the 23Mg states, combining magnetic and highly-segmented tracking γ-ray spectrometers, places strong limits on the amount of 22Na produced in novae, explains its non-observation to date in γ rays (flux < 2.5×10−4 ph.cm−2s−1 7), and constrains its detectability with future space-borne observatories.