bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spectral supralinearity of silicon photodiodes with over-filled illumination in the near-infrared region
Authors: Tanabe Minoru 
Published: August 2020

The spectral nonlinearities of silicon (Si) photodiodes (PDs) with over-filled illumination in the near-infrared region were investigated under reverse-bias and zero-bias voltage conditions. The supralinear behaviors and their wavelength dependences were clearly observed with over-filled illumination under both the reverse-bias and zero-bias voltage conditions at the selected wavelengths. Comparing these results with the nonlinearity results obtained in the under-filled illumination condition, it was evident that the maximum supralinearity values observed under the over-filled illumination condition were larger than those in the under-filled illumination condition, and the maximum value (

∼

10

%

) was obtained at the incident wavelength of 1060 nm. To validate the relatively large supralinearity value obtained under the over-filled illumination condition in the near-infrared region, the linearity factor and the photocurrent, as a function of the Si PD positions, and their wavelength dependences were examined under both the reverse-bias and zero-bias voltage conditions at all wavelengths. The linearity factors at the selected wavelengths, under both conditions, exceeded unity at all the PD positions; specifically, the values near the PD electrode were larger than those near the PD center, although the examined photocurrent decreased as the laser beam strayed off the beam detection area of the Si PD. These results highlighted that the relatively large supralinearity was generated under the over-filled illumination condition and that the minority carrier traps for the supralinearity-generating recombinations exist not only near the PD center but also near the PD electrode. These experimental results can facilitate the 3D theoretical modeling of Si-based photodetectors and aid the achievement of high-accuracy measurements with Si PDs in the fields of radiometry and radiation thermometry.
Polymer optical fibers for mechanical wave monitoring
Authors: Leal-Junior Arnaldo , Avellar Letícia , Frizera Anselmo , Antunes Paulo , Marques Carlos , Leitão Cátia 
Published: August 2020

This Letter presents the development of a low-cost polymer optical fiber (POF) sensor for mechanical wave monitoring. The POF is fabricated using the light polymerization spinning process (LPS-POF) with Bisphenol-A as its main component, resulting in a highly flexible fiber. The proposed LPS-POF sensor is applied on the assessment of squared waves with different amplitudes, where the amplitude and dynamic responses are compared to the ones of a piezoelectric transducer (PZT). In static conditions, a determination coefficient (

R

2

) of 0.990 is obtained between the reference (PZT) and proposed sensors for the amplitude assessment of the wave. In dynamic analysis, the LPS-POF viscoelasticity is compensated using viscoelastic constitutive models, resulting in a

R

2

of 0.988 between the sensor responses, which indicate a mean error reduction of 21% when compared to the uncompensated responses in the amplitudes of different square waves. The dynamic analysis also shows the sensor capability of operating in frequencies as high as 25 Hz. Then, the sensor’s responses, compared to the input squared wave, show the possibility of wave velocity measurement. Therefore, with a LPS-POF sensor array, it is possible to monitor these parameters in practical applications.
Influence of pulse duration and repetition rate on mid-infrared cascaded supercontinuum
Authors: Kwarkye Kyei , Jensen Mikkel , Dasa Manoj K. , Woyessa Getinet , Jain Deepak , Bowen Patrick , Moselund Peter M. , Sidharthan Raghuraman , Chen Shaoxiang , Yoo Seongwoo , Petersen Christian R. , Bang Ole 
Published: August 2020

We experimentally investigate the influence of varying pulse parameters on the spectral broadening, power spectral density, and relative intensity noise of mid-infrared (mid-IR) in-amplifier cascaded supercontinuum generation (SCG) by varying the pulse duration (35 ps, 1 ns, 3 ns) and repetition rate (100, 500, 1000 kHz). The system is characterized at the output of the erbium-ytterbium-doped in-amplifier SCG stage, the thulium/germanium power redistribution stage, and the passive ZBLAN fiber stage. In doing so, we demonstrate that the output of the later stages depends critically on the in-amplifier stage, and relate this to the onset of modulation instability.
Multifocal 1064  nm Raman imaging of carbon nanotubes
Authors: Ji Haojie , Nava Valeria , Yang Yu , Chan James W. 
Published: August 2020

We show that multifocal 1064 nm Raman microscopy based on Hadamard-coded multifocal arrays is useful for imaging carbon nanotubes (CNTs) that would otherwise be damaged if a conventional single focus microscope design is used. The damage threshold for CNTs, dependent on laser power density and exposure time, limits the spectral detection sensitivity of single focus Raman imaging. With multifocal detection, the signal-to-noise ratio of the Raman spectra were improved by more than a factor of three, allowing for the G and D Raman bands of CNTs to be detected while avoiding specimen damage. These results lay the foundation for developing multifocal 1064 nm Raman microscopy as a tool for in situ imaging of CNTs in plant material.
THE DISTRIBUTION OF BENTHIC FORAMINIFERA IN DAMAR ISLAND AND JUKUNG ISLAND, SERIBU ISLANDS
Authors: Natsir Suhartati M. 
Published: August 2020

Seribu Islands are archipelago within Jakarta Bay built upon the pleistocene coral formation of the Sunda Shelf. The islands are characterized by unique and high biodiversity such as coral reefs. Since coral reef degradation would lead to a decrease of human prosperity, the determination of the coral reef quality is of high importance. Foraminifera offers an early warning system for the coral reef condition, as exemplified by the FORAM Index, i.e. Foraminifera in Reef Assessment and Monitoring Index. This study compared the foraminiferal community structure and the FORAM Index of two islands between the Damar Besar and Jukung. Both islands were dominated by symbiont-bearing foraminifera of the genera Amphistegina, Calcarina, Heterostegina, Marginophora, and Operculina. However, the number of benthic foraminifers at Jukung Island was higher than that at Damar Besar Island, having 17 individuals per species on average. Jukung Island was a conducive site to reef growth, as indicated by a FORAM Index (between 6,48 and 6,57), and Damar Besar Island was liable to environmental change.
From Hand to Mouth: Reflections on the Multivocality of Gursha in Ethiopia
Authors: Salamon Hagar 
Published: August 2020

Abstract
The custom of feeding a person sitting at one’s table by placing a handful of sumptuous food in his or her mouth is a unique Ethiopian commensal practice, known as gursha. The present article aims at eliciting and examining a plethora of associations regarding this convivial, hospitable practice. Based on a wide range of sources, it examines gursha as a dynamic canvas for a wide spectrum of social, historical, and religious associations. The article propose to conceptualize gursha as a “dominant gesture” that draws upon and combines secular and religious sentiments.
The Eritrea-Ethiopia Border Region (1991-98): People without a Border
Authors: Okubaghergis Biyan Ghebreyesus 
Published: August 2020

AbstractThis article examines the topic of border crossings in terms of its everyday dimension in the light of the secession of Eritrea from Ethiopia in 1991. It focuses on interactions among the people who live on either side of the border. It seeks to understand how the transformation of the form and function of the border as a result of changes in the political landscape between the two countries has been experienced, defined, and understood by the inhabitants of the borderland in their everyday lives. The article is mediated through individual stories, in-depth interviews, ethnographic observation, media sources, and archival materials gathered from local and national archival centers in Eritrea during the summer of 2017. The findings reveal that the reactivation of the Eritrean-Ethiopian border had no effect not only on the preexisting social, cultural, and religious homogeneity among the people living across it, but also on everyday cross-border experiences and relations, and that the border and identity lines remained fluid and invisible. The border reconfiguration had brought only an enormous positive economic impact on the local people’s lives because of their distinctive geopolitical advantages.
El léxico y la enseñanza de la lengua: innovación y propuestas didácticas a partir del análisis de un método de enseñanza de español
Authors: Cervera Mata Teresa 
Published: August 2020

La actual didáctica del léxico en enseñanza secundaria no está planificada ni es valorada, a pesar de la importancia del vocabulario en el aprendizaje de la lengua materna. Mediante el análisis de la metodología de un manual de enseñanza de lengua castellana y literatura en educación secundaria conoceremos las ventajas del sistema y los aspectos que se pueden revisar, para a continuación realizar propuestas didácticas con el fin de mejorar la adquisición del léxico por parte del alumnado. Basándonos en el enfoque comunicativo y en las deficiencias encontradas en el manual analizado, como la existencia de actividades tradicionales y de corte estructuralista, expondremos la necesidad de un cambio en la enseñanza del léxico, que debe ser planificada y contextualizada.
El discurso del docente en clase de lengua y literatura: entre la facilitación y la portación de saberes
Authors: Atorresi Ana , Montemayor-Borsinger Ann 
Published: August 2020

En este artículo se presentan los resultados de la investigación “Discursos académicos en situaciones de aprendizaje: las pro-ducciones de estudiantes universitarios a lo largo de su proceso de formación”. Aquí se analizan tres clases de lengua y literatura de igual duración, dictadas en el nivel secundario en tres provincias argentinas. Los objetivos son: estudiar en qué medida, de qué forma y en relación con qué contextos los docentes de lengua y literatura actúan como facilitadores del aprendizaje o como portadores de saberes, y emplear una metodología de investigación que sirva a los docentes para analizar sus prácticas en los contextos en los que se desarrollan. El marco teórico es la Lingüística Sistémico Funcional y se utiliza particularmente la metafun-ción interpersonal y la teoría de la valoración. Los resultados del análisis revelan muy diferentes opciones de negociación del tenor de la situación, plasmadas a nivel léxico-gramatical en distintos modos verbales y expresiones de las actitudes. Estas diferencias resultan estrechamente asociadas a los contextos de situación en los que las clases se desarrollaron
Discurso artístico y educación estética
Authors: García Dusán Éder 
Published: August 2020

Inscrito dentro de las problemáticas de la educación y la investigación, el objetivo que persigo en este artículo es plantear que uno de los caminos para el desarrollo de una posible educación estética desciende de la puesta en marcha de un modelo de análisis discursivo sobre texturas llamadas performance artísticas y expresiones similares. En estas circunstancias, y partiendo de la tesis de que las expresiones artísticas, como cualquier uso lingüístico, son simultáneamente constitutivas y constituidas tanto de las identidades sociales, en un primer momento especificaré las cualidades comunes y relaciones tanto del tipo de sujeto receptor de estas texturas, como de esta forma particular de arte, para luego proponer un modelo que permita leer sus productos con sentido(s). Posteriormente, para aportar a la validez de tal modelo, lo ilustraré con la experiencia performática "Los BMR (Bamba, Martillo y Refilón)", presentada por el artista Fabio Melecio Palacios en 2011. El artículo concluye con una discusión en torno a dos ideas: i) la ruptura de los límites entre cotidianidad y productos simbólicos creativos y, ii) el valor investigativo que tiene el análisis de texturas artísticas para una educación estética.
The effect of stock prices, return on assets, and firm size on dividend payout ratio: evidence from Indonesian financial service companies
Authors: Septiani Mira , Ariyani Nafiah , Ispriyahadi Heri 
Published: August 2020

This paper aims to investigate the effect of stock prices, return on assets (ROA), and firms size on dividend payout ratio (DPR). We used 5-year annualized panel data from 2014 to 2018 of 17 financial sector companies listed in the Indonesian Stock of Exchange (IDX) as sample of this study. Analysis using three regression estimations (pooled OLS, fixed effects, and random effects) showed that stock price positively affects DPR. On the other hand, both ROA and firm size has a negative effect on DPR. These result suggests that more substantial and higher profit companies prefer to retain their earnings for financing an investment as a growth opportunity than to distribute their income as a dividend. Thereby, this agrees with the pecking order theory.
Problem udzielania pomocy wojskowej podczas „egzekucji z nieruchomości” w obradach sejmowych doby stanisławowskiej
Authors: Cholewiński Łukasz 
Published: August 2020

Tematem artykułu jest problem pomocy wojskowej udzielanej w trakcie egzekucji wyroków sądowych. Z racji tego, że organem prawodawczym w Rzeczpospolitej był Sejm, autor omówił przebieg debat sejmowych dotyczących tego problemu w latach panowania Stanisława Augusta. Przedstawił uchwalone konstytucje sejmowe, projekty królewskie oraz przeanalizował wystąpienia posłów. Omówił proces oświeceniowych zmian, które doprowadziły do uporządkowania problemu wysyłania żołnierzy na tzw. tradycję.
Ground states and multiple solutions for Hamiltonian elliptic system with gradient term
Authors: Zhang Wen , Zhang Jian , Mi Heilong 
Published: August 2020

AbstractThis paper is concerned with the following nonlinear Hamiltonian elliptic system with gradient term−Δu+b→(x)⋅∇u+V(x)u=Hv(x,u,v)inRN,−Δv−b→(x)⋅∇v+V(x)v=Hu(x,u,v)inRN.$$\begin{array}{} \displaystyle \left\{\,\, \begin{array}{ll} -{\it\Delta} u +\vec{b}(x)\cdot \nabla u+V(x)u = H_{v}(x,u,v)\,\,\hbox{in}\,\mathbb{R}^{N},\\[-0.3em] -{\it\Delta} v -\vec{b}(x)\cdot \nabla v +V(x)v = H_{u}(x,u,v)\,\,\hbox{in}\,\mathbb{R}^{N}.\\ \end{array} \right. \end{array}$$Compared with some existing issues, the most interesting feature of this paper is that we assume that the nonlinearity satisfies a local super-quadratic condition, which is weaker than the usual global super-quadratic condition. This case allows the nonlinearity to be super-quadratic on some domains and asymptotically quadratic on other domains. Furthermore, by using variational method, we obtain new existence results of ground state solutions and infinitely many geometrically distinct solutions under local super-quadratic condition. Since we are without more global information on the nonlinearity, in the proofs we apply a perturbation approach and some special techniques.
Existence results for nonlinear degenerate elliptic equations with lower order terms
Authors: Zou Weilin , Li Xinxin 
Published: August 2020

Abstract
In this paper, we prove the existence and regularity of solutions of the homogeneous Dirichlet initial-boundary value problem for a class of degenerate elliptic equations with lower order terms. The results we obtained here, extend some existing ones of [2, 9, 11] in some sense.
Validity and Reliability of a Field Hockey-Specific Dribbling Speed Test
Authors: Tapsell Liam C. , Binnie Martyn J. , Lay Brendan S. , Dawson Brian T. , Goods Paul S.R. 
Published: August 2020

Abstract
Tapsell, LC, Binnie, MJ, Lay, BS, Dawson, BT, and Goods, PSR. Validity and reliability of a field hockey-specific dribbling speed test. J Strength Cond Res 36(6): 1720–1725, 2022—The present study aimed to design a valid and reliable test for field hockey players that concurrently assesses the skill of dribbling and sport-specific agility. In total, 27 male and 32 female subjects were recruited from amateur (n = 20), state-level (n = 22), and national-level (n = 17) field hockey teams. The test course was developed in consultation with state- and national-level field hockey coaches, and using match analyses from existing literature. Subjects were familiarized before completing a testing session that consisted of 3 maximal-effort trials through a field hockey-specific course while dribbling a hockey ball, and another 3 trials of the same course without dribbling the ball. Amateur and state subjects completed an additional session for test-retest reliability analysis. Electronic timing gates recorded time to complete the course with the ball (DRIBBLE), without the ball (SPRINT), and the difference between DRIBBLE and SPRINT (DELTA). With significance set at p < 0.05, subjects of higher playing levels recorded significantly faster DRIBBLE (p < 0.001) and significantly lower DELTA (p < 0.001) times. No significant difference was found between player levels for SPRINT (p = 0.484) times. Intraclass correlations were 0.84 and 0.81 for DELTA and DRIBBLE, respectively. In conclusion, the dribbling test trialed here has sufficient validity and reliability for use in performance testing of field hockey athletes and can be implemented across playing levels to objectively track skill progression.
Effects of an International Tournament on Heart Rate Variability and Perceived Recovery in Elite Water Polo Players
Authors: Botonis Petros G. , Smilios Ilias , Platanou Theodoros I. , Toubekis Argyris G. 
Published: August 2020

Abstract
Botonis, PG, Smilios, I, Platanou, TI, and Toubekis, AG. Effects of an international tournament on heart rate variability and perceived recovery in elite water polo players. J Strength Cond Res 36(8): 2313–2317, 2022—The purpose of the study was to evaluate the effects of an international tournament participation in vagal-related heart rate variability and perceived recovery among elite water polo players. Nine elite water polo players participated in an intensified training week (pretournament) and then traveled abroad to take part in an international tournament including 3 high-competitive matches during a 4-day period. Internal workload was measured after training or competition. Morning, postwakening natural logarithm of the root mean square of successive differences (lnRMSSD) and measures of perceived recovery were obtained pretournament and daily during the tournament. Logarithm of the root mean square of successive differences was also measured 30 minutes after the completion of each match of the tournament. Logarithm of the root mean square of successive differences was suppressed after the first match (p = 0.03, d = −0.75), compared with the first morning of the tournament, rebounded the following morning (p = 0.03, d = 0.87), and remained unaltered until the third match. In the last morning of the tournament, LnRMSSD was higher compared with the first postmatch measurement (p = 0.002, d = 1.57) and tended to be higher than pretournament (p = 0.09, d = 0.81). Perceived recovery and internal workloads were lower in the tournament days compared with pretournament (p < 0.001, d = 2.0 and p < 0.001, d = 14.0, respectively). In conclusion, heart rate variability may stabilize and progressively increase by the end of a tournament, as compared with a pretournament training period, reflecting an enhanced parasympathetic reactivation may be due to the reduced training load. By contrast, perceived recovery was suppressed indicating that other factors may also influence the overall recovery of the players.
Characteristics related to fish consumption and the risk of ichthyozoonosis in a Colombian population
Authors: Castellanos-Garzon Jenniffer Alejandra , Daschner Alvaro , Pustovrh Maria , Cuellar Carmen 
Published: August 2020

Objective This study aimed to determine the dietary habits related to fish consumption and the risk factors associated with acquiring an ichthyo-zoonotic disease.Materials and Methods A descriptive, cross-sectional study was carried out by means of a structured survey administered to 150 individuals in the city of Cali, Colombia.Results Epidemiological variables regarding fish consumption and preparation were contrasted with the medical records of the respondents. The median fish consumption in the surveyed population was three times a month, with raw or salted/marinated fish once a month. A positive correlation between fish consumption and allergic conditions was confirmed. There was no infectious or parasitic history associated with the data on fish consumption.Conclusions A relationship between fish consumption and allergies was confirmed. Further research is necessary to establish the possible pathogens associated with hypersensitivity, such as parasites of the Anisakidae family.
Relación entre determinantes sociales de salud y perfil de funcionamiento de personas con discapacidad del municipio Los Patios, Norte de Santander, Colombia
Authors: Vanegas-Sáenz Hector Daniel , Soto-Céspedes Juan C. , Sánchez-Frank José V. 
Published: August 2020

Objetivo Analizar la relación de los determinantes sociales en salud con el perfil de funcionamiento de personas con discapacidad del municipio Los Patios, Norte de Santander.Método A una muestra de 246 personas con algún tipo de discapacidad del municipio Los Patios, Norte de Santander, bajo selección no probabilística intencionada, se administraron los instrumentos denominados Registro para la Localización y Caracterización de Personas con Discapacidad (RLPCD) y el del perfil de funcionamiento según la Clasificación Internacional del Funcionamiento, de la Discapacidad y de la Salud (CIF), para identificar los determinantes sociales de salud y el perfil de funcionamiento, y determinar su relación.Resultados La muestra se caracterizó por un mayor porcentaje de hombres con discapacidad (60,2%), en relación con las mujeres (39,8%), residentes en estratos socioeconómicos 1,2 y 3 y grupos etarios entre 5 y 93 años, con un alto porcentaje que no recibe algún tipo de ingreso (79,2%). Las principales discapacidades que presentaron fueron de movilidad y su grado de funcionamiento se ubicó entre no deficiencia y deficiencia moderada, con una relación de dependencia con los determinantes sociales de salud.Conclusiones El estudio muestra evidente relación entre los determinantes sociales y el perfil de funcionamiento de personas con discapacidad. Género, nivel de escolaridad, ingresos y estrato socioeconómico son elementos que determinan el grado de funcionalidad de individuos con discapacidad. Estos factores se deben considerar cuando se desarrollan políticas públicas orientadas al beneficio de este tipo de población; Tenerlos en cuenta podría garantizar el éxito en la aplicación de las políticas diseñadas.
Pandemia de la COVID-19 y las Políticas de Salud Pública en el Perú: marzo-mayo 2020
Authors: Gonzales-Castillo Jorge Ricardo , Varona-Castillo Luis , Dominguez-Morante Moises Germán , Ocaña-Gutierrez Víctor Raul 
Published: August 2020

Objetivo El trabajo tiene como objetivo analizar la dinámica del comportamiento de la COVID-19 en el Perú, estimar y evaluar el impacto de la política pública de supresión (cuarentena).Métodos El modelo epidemiológico SIR y la estimación con el método de Mínimos Cuadrados Ordinarios (MCO).Resultados Se encontró que el número básico de propagación (Ro) cayó de 6,0 a 3,2 habiéndose reducido en 54% por efecto de la estrategia de supresión, y dos meses después cayó a 1,7. Sin embargo, sigue siendo alto y evidencia que aún continúa en expansión el nivel de infectados, con los efectos sociales y económicos adversos que esta medida implica.Conclusión La COVID-19 es una enfermedad que crece exponencialmente, por lo cual, la política de salud basada en la estrategia de supresión ha permitido aplanar la curva de contagio, evitando el colapso del Sistema de Salud.