bluuebunny/crossref_metadata_2025 huggingface dataset:
Steganography Technique and Modification of Substitution Cipher Using ASCII Code and Fibonacci Sequences
Authors: Pradana Musthofa Galih , Saputro Pujo Hari , Pamekas Bondan Wahyu
Published: September 2021

Cryptography is widely used to secure data and information so that it is not easily misused by parties who are not interested in the data. One type of cryptographic algorithm is Caesar Cipher and Vigenere Cipher. Both of these algorithms are classic cryptographic algorithms that need to be modified so that they become more optimal in the data security process. The first modification is to modify the Vigenere key using Fibonacci. In general, Vigenere Cipher will repeat the same keyword to complete the number of characters that are lacking so that the number of characters is the same as the number of characters in the plaintext. The second modification is to change or convert plaintext letters into ASCII letters so that the code is more difficult to solve. After the ASCII conversion process is done, the next results will be converted back in Hexa letters. In addition to the two modifications made, the steganography technique is also added by hiding the code behind the media in the form of images. Images that are sampled will be renamed and stored in different places.
Explicit asymptotic secret key rate of continuous-variable quantum key distribution with an arbitrary modulation
Authors: Denys Aurélie , Brown Peter , Leverrier Anthony
Published: September 2021

We establish an analytical lower bound on the asymptotic secret key rate of continuous-variable quantum key distribution with an arbitrary modulation of coherent states. Previously, such bounds were only available for protocols with a Gaussian modulation, and numerical bounds existed in the case of simple phase-shift-keying modulations. The latter bounds were obtained as a solution of convex optimization problems and our new analytical bound matches the results of Ghorai et al. (2019), up to numerical precision. The more relevant case of quadrature amplitude modulation (QAM) could not be analyzed with the previous techniques, due to their large number of coherent states. Our bound shows that relatively small constellation sizes, with say 64 states, are essentially sufficient to obtain a performance close to a true Gaussian modulation and are therefore an attractive solution for large-scale deployment of continuous-variable quantum key distribution. We also derive similar bounds when the modulation consists of arbitrary states, not necessarily pure.
Leitura e Biblioteca: caminhos para a libertação
Authors: Lins Ivana Aparecida Borges , Novo Hildenise Ferreira , Santos José Carlos Sales dos
Published: September 2021

O artigo apresenta uma abordagem compreensiva sobre leitura e biblioteca que parte da leitura de mundo mediante o contexto libertário da linguagem humana, que visa a comunicação e, principalmente, a ampliação das visões de mundo, que a princípio são individuais, mas ganham outras perspectivas quando encontram na leitura possibilidades infinitas de ampliação de conteúdos através de mundos possíveis ou visões diferentes sobre um referente (objeto) no mundo, que se amolda na medida da pessoa humana perceber e entender tal objeto através do contexto de quem fala, de quem lê e de quem escreve. No caminho da libertação pela leitura existe um texto que carrega consigo um lugar de fala, o interpretante e o interpretado se encontram nas leituras possíveis e se adequam ao contexto, ou interpretações circunstanciais. Os caminhos para esses encontros interpretativos são facilitados pelos Sistemas de Recuperação de Informação, construídos em bibliotecas para dar acesso aos itens documentais, a exemplo do livro. Esses sistemas necessitam atender a questões de acesso, mas devem levar em conta aspectos cognitivos da pessoa humana. Conclui-se que a população brasileira ainda possui dificuldade de acesso a informação que facilitará a sua vida cidadã, nesse sentido a biblioteca pública tem em sua função social a missão de ir além da preservação de acervos, ou seja, promover a difusão de informações úteis que promova sentido para uma libertação cidadã
Análisis de Componentes Principales en presencia de datos faltantes: el principio de datos disponibles
Authors: Gonzalez Rojas Víctor Manuel , Conde Arango Gabriel , Ochoa Muñoz Andrés Felipe
Published: September 2021

En este trabajo proponemos utilizar el principio de datos disponibles derivado del algoritmo NIPALS (Nonlinear estimation by Iterative Partial Least Square) para trabajar el Análisis de Componentes Principales (ACP) en presencia de datos faltantes. Esta propuesta es importante puesto que no realiza imputación de datos, ni se descartan individuos de la base datos, el método propuesto trabaja con los elementos pares disponibles para conformar las matrices de cuasicorrelación en  y en la descomposición espectral de estas matrices permite a través de las relaciones de transición realizar un ACP convencional. Del estudio de simulación realizado se encontró que a medida que aumenta el porcentaje de datos faltantes disminuye la inercia explicada en el primer plano factorial. Se desarrolló el algoritmo de solución bajo el entorno de programación R y se anexa el código para uso libre.
Proposal for improving of paddy rice drying process in dryers inclined pools
Authors: Vera Duarte Luis Emilio , Moreno Gamboa Faustino , Eugenio López José Rafael
Published: September 2021

The operation of inclined type dryers for paddy rice is studied to improve their operation and efficiency, considering the variables of drying time, humidity distribution in the rice layer after drying and air velocities within the plenum. Simulating the distribution and velocities of the air flow before crossing the rice layer, the outlet ducts to the plenum are relocated and dampers are placed to distribute the flow evenly. On the other hand, it is proposed to replace the flat-type mesh with a zigzag-type mesh.  To verify the proposed modifications, a scale model was built to determine the humidity and drying time variation inside the rice layer, obtaining more uniform moisture percentages within the rice layer and a decrease in drying time.
Below-ground plant-soil interactions affecting adaptations of rice to iron toxicity
Authors: Kirk Guy , Manwaring Hanna , Ueda Yoshiaki , Semwal Vimal , Wissuwa Matthias
Published: September 2021

Iron toxicity is a major constraint to rice production, particularly in
highly-weathered soils of inland valleys in sub-Saharan Africa where the
rice area is rapidly expanding. Although there is wide variation in
tolerance in the rice germplasm, progress in introgressing tolerance
traits into high-yielding germplasm has been slow owing to the
complexity of tolerance mechanisms and large genotype by environment
effects. We review current understanding of tolerance mechanisms,
particularly those involving below-ground plant-soil interactions, which
to date have been less studied than above-ground mechanisms. We cover
processes in the rhizosphere linked to exclusion of toxic ferrous iron
by oxidation, and resulting effects on the mobility of nutrient ions. We
also cover the molecular physiology of below-ground processes
controlling Fe retention in roots and root-shoot transport, and also
plant Fe sensing. We conclude that future breeding programs should be
based on well-characterised molecular markers for tolerance traits. To
successfully identify such markers, the complex tolerance response
should be broken down into its components based on understanding of
tolerance mechanisms, and tailored screening methods developed for
individual mechanisms.
Editorial
Authors: Roa Vega María Ligia
Published: September 2021

.
Evaluación de líquido peritoneal post biopsia hepática percutánea guiada por ultrasonografía en equinos.
Authors: Velásquez Piñeros Diego Darley , Romero Corrêa Rodrigo , Fuentes Reyes Edgar Edilberto
Published: September 2021

El líquido peritoneal es un ultrafiltrado de plasma que sirve como lubricante de los órganos abdominales. Su análisis puede ser indicativo importante de los cambios ocurridos en los órganos de la cavidad abdominal. La biopsia hepática es una herramienta clínica aplicada al diagnóstico de las enfermedades hepáticas en equinos, pero aún no está seguro de las consecuencias de este procedimiento en la cavidad abdominal. El presente trabajo tuvo como objetivo evaluar el líquido peritoneal de caballos después de la biopsia hepática percutánea guiada por la ultrasonografía. Se realizó la biopsia hepática percutánea en diez equinos sanos, de la raza Pura Sangre Árabe, sometidos a un experimento ya aprobado en el Comité de Ética en el uso de los animales (CEUA). Las muestras de líquido peritoneal fueron recogidas por abdominocentesis antes de la biopsia (T0), 24 (T1), 48 (T2), 72 (T3), 120 (T4) y 178 horas (T5) después la biopsia hepática. El análisis consistió en la determinación de las variaciones de características físicas (color, aspecto, densidad, coagulación), químicas (glucosa, proteína, pH, sangre oculta, albúmina, globulinas, fibrinógeno) y citologías (conteo total de células nucleadas) del fluido peritoneal. El líquido peritoneal se encontró de hemorrágico y turbia después de la biopsia hepática, volviendo a la normalidad en las ciento sesenta y ocho horas después del procedimiento. La proteína total inicial (T0) fue media 1,090 g/dL presentó un aumento significativo (p<0,05) en relación con el valor inicial en el tiempo 120 (T4) y 178 horas (T5) después de la biopsia, 1,78 y 2,24 g/dL respectivamente. El conteo total de células nucleadas inicial (T0) fue promedio 1.060 C/μl con tendencia a aumentar (p>0,05 y <0,1) en relación con el valor inicial en el tiempo T5, con una media de 1.211 cél/μL. El procedimiento de biopsia hepática percutánea guiada por ultrasonografía en equinos produjo cambios en las características físicas, químicas y celulares del líquido peritoneal, sin embargo, los cambios en el líquido no indicaron inflamación en la cavidad abdominal durante el periodo evaluado.
Evaluación y tratamiento polimodal del dolor musculo esquelético y abdominal en equinos.
Authors: Reyes Cardona Daniela , Jaramillo Hernández Dumar Alexander
Published: September 2021

El dolor es uno de los aspectos más importantes que sugieren el estado de bienestar en los animales. Debido a que no podemos evaluar directamente los estados emocionales en ellos, la evaluación del bienestar se basa en factores fisiológicos e indicadores de comportamiento. Los veterinarios confían en la interpretación de la conducta de sus pacientes con el fin de guiar el tratamiento médico más adecuado, sin embargo, la evaluación clínica del dolor en animales es un procedimiento subjetivo dominado por el sesgo personal, la percepción y la fisiología. En los últimos años las investigaciones se han centrado en la creación de escalas de dolor (escala visual análoga, escala descriptiva simple, escala de calificación numérica, escala de dolor compuesta y escalas de gestos) con el fin de facilitar al clínico la determinación del grado de dolor que experimenta el paciente. Los enfoques farmacológicos para el tratamiento del dolor en equinos deben ser basados y seleccionados para fines específicos (inflamación, lesión nerviosa, sensibilización periférica frente a central) y en función de la gravedad y el tipo de dolor (somático frente a visceral; leve o grave), sin embargo la mayoría de los medicamentos utilizados para tratar el dolor en equinos se dividen en 4 categorías amplias: medicamentos antiinflamatorios (AINE), esteroides y no esteroides, opioides, y agonistas α2, a pesar de las propiedades analgésicas de estos fármacos, existen reportes de diversos efectos adversos asociados a su utilización. La analgesia polimodal es una alternativa, si bien no contempla nuevos grupos farmacológicos, propone el uso simultáneo de varios medicamentos que, por poseer diferentes mecanismos de acción, logran mejorar el efecto analgésico final, disminuyendo los riesgos de presentación de efectos adversos.
Minimum Threshold of Bariatric Surgical Weight Loss for Initial Diabetes Remission
Authors: Barthold Douglas , Brouwer Elizabeth , Barton Lee J. , Arterburn David E. , Basu Anirban , Courcoulas Anita , Crawford Cecelia L. , Fedorka Peter N. , Fischer Heidi , Kim Benjamin B. , Mun Edward C. , Murali Sameer B. , Reynolds Kristi , Yoon Tae K. , Zane Robert E. , Coleman Karen J.
Published: September 2021

Objective: There
are few studies testing the amount of weight loss necessary to achieve initial
remission of type 2 diabetes (T2DM) following bariatric surgery and no
published studies using weight loss to predict initial T2DM remission in sleeve
gastrectomy (SG) patients.

Research
Design and Methods: Cox
proportional hazards models examined the relationship between initial T2DM
remission and percent total weight loss (%TWL) after bariatric surgery. Categories
of %TWL were included in the model as time-varying covariates.

Results: Patients (N=5,928) were 73% female,
49.8+10.3 years old, had BMI of 43.8+6.92 kg/m2, and 57%
had Roux-en-Y gastric bypass (RYGB). Over an average follow-up of 5.9 years,
71% of patients experienced initial remission of their T2DM (mean time to
remission 1.0 year). Using 0-5% TWL as the reference group in Cox proportional
hazards models, patients were more likely to remit with each 5% increase in TWL
until 20% TWL (range from HR=1.97 to 2.92). When categories above >25% TWL
were examined, all had a likelihood of initial remission similar to 20-25% TWL.
Patients who achieved >20% TWL were more likely to achieve initial T2DM
remission than patients with 0-5% TWL, even if they were using insulin at the
time of surgery.

Conclusions:
Weight loss after
bariatric surgery is strongly associated with initial T2DM remission; however, above
a threshold of 20% TWL, rates of initial T2DM remission did not increase
substantially. Achieving this
threshold is also associated with initial remission even in patients who
traditionally experience lower rates of remission, such as patients taking
insulin.
Long-term Outcome of Chilblains Associated with SARS-CoV-2
Authors: Poizeau Florence , Barbarot Sébastien , Le Corre Yannick , Brenaut Emilie , Samimi Mahtab , Aubert Hélène , Toubel Alexis , Dupuy Alain
Published: September 2021

Numerous cases of chilblains have been observed in the course if the COVID-19 pandemic. The aims of this study were to provide comprehensive follow-up data for patients reporting chilblains, and to determine the risk factors for incomplete recovery. Patients referred to 5 hospitals in France between March and May 2020 for chilblains were surveyed on December 2020. A teleconsultation was offered. Among 82 patients reporting chilblains, 27 (33%) reported complete recovery, 33 (40%) had recurrences of chilblains after their hands and feet had returned to normal, and 22 (27%) developed persistent acral manifestations, mostly acrocyanosis, with or without further recurrences of chilblains. Most recurrences of chilblains occurred during the following autumn and winter. A past history of chilblains was not associated with recurrences or persistent acral manifestations. Women had a significantly higher risk of developing recurrences or persistent acral manifestations (odds ratio 1.30; 95% confidence interval 1.06–1.59). In conclusion, two-thirds of patients reporting chilblains at the start of the COVID-19 pandemic experienced persistent or recurrent acral manifestations after a 10-month follow-up.
Sexual Violence and the Role of Public Conversations in Japan: A Closer Look at the "Bakky Case"
Authors:   Ritsumeikan University, Japan, O'Mochain Robert
Published: September 2021

While the #MeToo movement has led to successful campaigns against sexual harassment in many parts of the world, results have been mixed in Japan. In spite of the fact that #MeToo has inspired a number of offshoot campaigns, many victims of sexual abuse remain silent. Greater attention needs to be directed at the reasons for this reluctance to pursue justice. One factor that requires greater scrutiny is the role of public conversations; that is, widely reported comments from prominent members of society which generate some level of discussion and which exercise some influence over people’s way of thinking on particular topics. If public conversations denigrate women by labeling them as sexually promiscuous or as failures in terms of normative motherhood, the result may be increased violence against women and greater difficulty for women who seek justice in the aftermath of sexual violence. This argument is developed in this article which explores the ways in which a set of public conversations during the 1990’s and early 2000’s may have helped to incite extreme reactions of sexual abuse by stigmatizing certain young women both in terms of masculinist norms of sexuality and of female reproduction. Through engagement with relevant texts and member-checking with gender activists, the author found that the failure to learn lessons from a case of pornography-related sexual violence in the early 2000’s (referred to as the “Bakky case”) means that women remain vulnerable, especially if they are stigmatized for “failing in their duty” to bear children. Prominent figures in society must refrain from initiating public conversations that can lead to the stigmatization of women who challenge traditional gender norms. This study is made so that concerned citizens in Japan today, and readers everywhere, can more strongly justify their insistence on public conversations that reflect principles of gender equality and respect.
ESTÁGIO SUPERVISIONADO NO CURSO DE LICENCIATURA EM CIÊNCIAS BIOLÓGICAS: PERSPECTIVAS E REFLEXÕES DISCENTES
Authors: Aires Praciano Jaírla Bianca , Fontenelle Camelo Rodrigues Natália Velloso , Alves Feitosa Raphael
Published: September 2021

Esta pesquisa teve como objetivo compreender as perspectivas dos licenciandos em Ciências Biológicas da Universidade Estadual do Ceará, localizada na cidade de Fortaleza-CE, diante do processo de formação de professores realizado no desenvolvimento do Estágio Supervisionado do Ensino Fundamental e do Ensino Médio. A pesquisa, com abordagem qualitativa e uso de questionários, foi realizada com dezesseis estagiários do curso de Licenciatura em Ciências Biológicas da Universidade Estadual do Ceará. Os dados foram analisados por meio de Análise de Conteúdo. Os resultados revelam que a maioria dos estagiários relataram ter uma boa relação com o professor supervisor escolar e o orientador da universidade, e expuseram que o direcionamento dado por eles contribuiu de forma positiva para sua formação como futuro docente. Afirmaram também apresentar grandes dificuldades em trabalhar com alunos com deficiência. Portanto, é necessário abordar com mais intensidade a inclusão escolar durante as aulas presenciais de estágio.
O PDE E A CONTRIBUIÇÃO PARA A FORMAÇÃO CONTINUADA DO PROFESSOR PEDAGOGO DOS NÚCLEOS DE EDUCAÇÃO DO SUDOESTE DO PARANÁ
Authors: Lazaroto Elaine , Silveira Portelinha Ângela Maria
Published: September 2021

Nos anos 2000, no Paraná, pesquisas apontaram para a fragmentação nos cursos de formação continuada, o que contribuiu para a criação do Programa de Desenvolvimento Educacional (PDE). Nesse sentido, problematizamos os limites e as possibilidades do PDE na formação continuada dos professores pedagogos, dos Núcleos Regionais de Educação de Dois Vizinhos, Francisco Beltrão e Pato Branco. Este artigo apresenta os resultados de pesquisa realizada no PPG em Educação da Unioeste, Campus de Francisco Beltrão, nível de mestrado. Em termos metodológicos, caracteriza-se por ser crítico-dialético e ter uma abordagem qualitativa, pautando-se em estudo bibliográfico, análise documental e dados levantados via questionário. Entre outros resultados alcançados, levantou-se que os entrevistados conferem importante contribuição do PDE ao processo formativo-educativo. Destacam, entretanto, implicações que fragilizaram a formação ofertada, como descontinuidade dos projetos e pesquisas, intensificação do trabalho pedagógico, falta de incentivo ou precariedade nas políticas públicas que sucederam o programa.
Synchronization of time-varying time delayed neutral-type neural networks for finite-time in complex field
Authors:   Government Arts College, Coimbatore, India, Jayanthi N. , Santhakumari R. ,   Government Arts College, Coimbatore, India; Sri Ramakrishna College of Arts and Science, Coimbatore, India
Published: September 2021

This paper deals with the problem of finite-time projective synchronization for a class of neutral-type complex-valued neural networks (CVNNs) with time-varying delays. A simple state feedback control protocol is developed such that slave CVNNs can be projective synchronized with the master system in finite time. By employing inequalities technique and designing new Lyapunov--Krasovskii functionals, various novel and easily verifiable conditions are obtained to ensure the finite-time projective synchronization. It is found that the settling time can be explicitly calculated for the neutral-type CVNNs. Finally, two numerical simulation results are demonstrated to validate the theoretical results of this paper.
Mathematical modeling of fluid flows through the piecewise homogeneous porous medium by R-function method
Authors:   Kharkiv National University of Radio Electronics, Podhornyj O. R. , Sidorov M. V. ,   Kharkiv National University of Radio Electronics
Published: September 2021

The stationary fluid flow through a piecewise homogeneous porous medium is considered under the assumption that Darcy's law holds. The mathematical model of this problem is defined as an elliptic equation for the stream function, supplemented by the second-type boundary conditions at the water boundaries and the first-type boundary conditions at the impervious to liquid boundaries. The problem statement also includes the conditions of conjugation at the separation line between two soils and the unknown value of fluid discharge, which can be established from the additional integral ratio. It is proposed to use the structure-variational method of R-functions in order to numerically analyze and solve the current problem. The complete solution structure for the boundary value problem of stream function regarding the R-functions method is established, moreover, the application of the Ritz method for approximating an unspecified structural formula component is substantiated. Then, the approximate value of the fluid discharge and the approximate solution of the original problem are found from the additional integral ratio. The computational experiment was carried out with different coefficients of permeability within the area, which has the shape of the lower half ring. It is established that as the number of coordinate functions increases, the value of fluid discharge becomes constant, indicating the convergence of the proposed method.
Caputo fractional reduced differential transform method for SEIR epidemic model with fractional order
Authors:   Department of Mathematics, Faculty of Science, Ekiti State University, Fadugba S. E. , Ali F. ,   Department of Mathematics, Aligarh Muslim University, Abubakar A. B. ,   Department of Mathematical Sciences, Faculty of Physical Sciences, Bayero University; Department of Mathematics and Applied Mathematics, Sefako Makgatho Health Sciences University
Published: September 2021

This paper proposes the Caputo Fractional Reduced Differential Transform Method (CFRDTM) for Susceptible-Exposed-Infected-Recovered (SEIR) epidemic model with fractional order in a host community. CFRDTM is the combination of the Caputo Fractional Derivative (CFD) and the well-known Reduced Differential Transform Method (RDTM). CFRDTM demonstrates feasible progress and efficiency of operation. The properties of the model were analyzed and investigated. The fractional SEIR epidemic model has been solved via CFRDTM successfully. Hence, CFRDTM provides the solutions of the model in the form of a convergent power series with easily computable components without any restrictive assumptions.
Template assisted nano-structured nickel for efficient methanol oxidation
Authors: Mohanapriya S , Raj V
Published: September 2021

Nanoporous nickel has been prepared by electrodeposition using non-ionic surfactant based liquid crystalline template under optimized processing conditions. Physicochemical properties of nanoporous nickel are systematically characterized through XRD, SEM and AFM analyses. Comparison of electrocatalytic activity of nanoporous nickel with smooth nickel was interrogated using cyclic voltammetry (CV), chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS) analyses. Distinctly enhanced electrocatalytic activity with improved surface poisoning resistance related to nanoporous nickel electrode towards methanol oxidation stems from unique nanoporous morphology. This nanoporous morphology with high surface to volume ratio is highly beneficial to promote active catalytic centers to offer readily accessible Pt catalytic sites for MOR, through facilitating mass and electron transports.
Target audience differentiation through 3 Rivers, 1 Island Total Art Happening in Győr
Authors: Kupi Marcell , Tóthné Kardos Krisztina
Published: September 2021

Today's urban policies in Central and Eastern Europe place an increasing emphasis on cultural and creative activities, as the industrial activity is not always sufficient for the development of cities – and thus the regions run by them – and needs to be supported by tourism, especially cultural tourism. Organising cultural events, art festivals and happenings has a major impact on the development of the urban milieu. Today, events and festivals make a significant contribution to shaping the cultural image of a city. The key to the successful organization of festivals is the knowledge of the target audience, the differentiation, the most accurate segmentation of consumer groups. The present study showcases a detailed and comprehensive visitor analysis through 31! 3 Rivers, 1 Island Total Art Happening organized by Győr in Hungary. The organizers aimed to rethink and consciously use the genre (happening instead of festival) to differentiate the event effectively, and to create a unique image, consciously building on the needs of a young target group, with a new emphasis on visuality.
Aprendizaje, representación y procesamiento de palabras ambiguas en bilingües
Authors: Sá Leite Dias Ana Rita , Fraga Carou Isabel
Published: September 2021

En este trabajo se revisan los estudios que han investigado el procesamiento, la representación y el aprendizaje de palabras ambiguas (homónimas y polisémicas) en individuos bilingües. La evidencia disponible apoya la influencia mutua entre las dos lenguas del bilingüe, tanto en un nivel léxico como semántico. Más concretamente, destaca el impacto de la llamada “ambigüedad de traducción”, el cual se ve modulado por el nivel de competencia en la segunda lengua (L2). Se recogen además, las aportaciones de los distintos modelos de organización léxica bilingüe (Dijkstra y van Heuven, 2002; Kroll y Stewart, 1994; van Hell y De Groot, 1998), que parecen complementarse a la hora de explicar los resultados obtenidos. Para terminar, se corrobora la dificultad que encierra, en el ámbito educativo, el aprendizaje de palabras con varios significados y se concluye con algunas recomendaciones que facilitarían el aprendizaje de este tipo de palabras en la L2.
Diferencias sexuales en el aprendizaje del Laberinto Hebb-Williams con ratones OF1
Authors: Caballero-Reinaldo Cristina , Navarro-Francés Concepción Inmaculada , Arenas María Carmen
Published: September 2021

El Laberinto Hebb-Williams es una prueba utilizada para evaluar el aprendizaje espacial en animales. Aunque la capacidad espacial es una función cognitiva considerada sexodimórfica, donde los machos muestran una ventaja frente a las hembras, los resultados de los pocos estudios que evalúen diferencias de sexo en esta prueba no son concluyentes. Por ello, en este estudio nos propusimos comprobar si los ratones OF1 machos ejecutaban mejor que las hembras las tareas del Laberinto Hebb-Williams, y si esa ventaja era independiente de la dificultad del laberinto. Se utilizó la versión reducida para ratones, la cual consta de 5 laberintos, 3 considerados fáciles y 2 difíciles. Los resultados en general corroboraron una mejor ejecución de los machos frente a las hembras, con tiempos de ejecución y número de errores más reducidos y menor número de ensayos para alcanzar el criterio de adquisición. Sin embargo, estas diferencias de sexo no se dieron en todos los laberintos, manifestándose principalmente en los laberintos fáciles pero no en los difíciles. Se discuten posibles explicaciones a las diferencias entre machos y hembras en el aprendizaje de los laberintos en función de su dificultad, concluyéndose que la categorización de la dificultad de los laberintos es dependiente del sexo.
The effects of emotional awareness training on teachers’ ability to manage the emotions of preschool children: An experimental study
Authors: Ulloa Maria , Evans Ian , Jones Linda
Published: September 2021

This article describes the process and results of a Randomized Controlled Trial (RCT) on teachers’ ability to manage the emotions of preschool children during a constrained play activity. Thirty early childhood education teachers participated in the study. Half of the participants were taught strategies to enhance their own emotional competence. The control group was provided with standard information on child development. The experimental group was trained in active strategies on emotion coaching, emotional schemas, reflective practice focused on emotions, and mindfulness training. The teachers’ outcomes were assessed in situ during a pretend play session with small groups of preschoolers. The dependent variables were observed occurrences of different components of emotional competence in teachers. Significant statistical differences were found between the two groups across the three different emotional competence skills (regulation, expression, and knowledge) demonstrated by the early childhood teachers during a game situation. This experimental study highlights the processes through which teachers support the emotional competence of young children, and the importance of the role of early childhood teachers' own emotional competence on the socialisation of children’s emotions. Most importantly, it provides evidence, based on the influence of emotion-focused teacher-training and reflective practices, that teachers’ emotional skills should be supported such that they can optimally meet the emotional needs of young children.
Diferencias de género en la imagen corporal y su importancia en el control de peso
Authors: Ramos Pilar , Rivera Francisco , Pérez Rosario Soledad , Lara Laura , Moreno Carmen
Published: September 2021

La adolescencia es la etapa más vulnerable para la aparición de problemas relacionados con la imagen corporal. Este estudio examinó las diferencias entre chicos y chicas adolescentes (13-18 años) en el Índice de Masa Corporal (IMC), la percepción y satisfacción con la imagen corporal, y hacer dieta para perder peso. Los resultados muestran que las chicas, a pesar de presentar menor sobrepeso y obesidad que los chicos varones, estaban más insatisfechas con su imagen corporal, se percibían más gordas y tendían a realizar dietas para controlar su peso con mayor frecuencia que los chicos. Por otro lado, tanto en chicos como en chicas, la percepción corporal tomó mayor importancia a la hora de predecir la conducta de hacer dieta que la adecuación del peso en base al IMC. Además, en las chicas, la satisfacción corporal se colocaba también por delante del IMC en dicha predicción. Los resultados de este estudio ponen de relieve la importancia de tener en cuenta las percepciones de los adolescentes sobre su imagen corporal a la hora de diseñar, desarrollar e implantar programas de intervención destinados a la prevención y tratamiento de trastornos alimenticios. Así mismo, las diferencias de género encontradas, apuntan a la necesidad de tener en cuenta las distintas percepciones de chicas y chicos para aumentar las probabilidades de éxito de las intervenciones.
Efecto del contexto verbal en el reconocimiento de la expresión de alegría y tristeza
Authors: Gordillo Fernando , Pérez Miguel Ángel , Castillo Gabriela , Mestas Lilia , Arana José María , López Rafael Manuel
Published: September 2021

El reconocimiento de las emociones supone la integración de los aspectos físicos relativos a los movimientos de la musculatura facial, pero también y desde diferentes enfoques se da relevancia al contexto que rodea a dicha ex-presión en el momento de ser percibida. En la presente investigación se analizó el papel del contexto verbal sobre el reconocimiento de la expresión facial de alegría y tristeza. Participaron 50 sujetos a los que se les pidió que visualizaran expresiones mixtas neutras rodeadas por cinco palabras positivas, negativas o neutras (contexto verbal), que describían la vida de dicha persona (fase I). Posteriormente se les presentaron durante 39 milisegundos expresiones faciales mixtas de alegría o tristeza de las mismas personas que aparecieron en la fase anterior para que decidieran lo más rápido posible si la emoción expresada era de alegría o tristeza (fase II). Los resultados mostraron un peor reconocimiento de la expresión de tristeza respecto a la de alegría cuando el contexto verbal previo era positivo. Por otro lado, la expresión de tristeza se reconoció mejor cuando iba precedida de un contexto verbal negativo respecto a cuando era positivo. Se discuten los resultados dentro del modelo constructivista de la emoción.
Razón de Estado y ciencia de la sociedad. (El caso de José Eusebio Caro y su Mecánica Social, Nueva Granada, 1836)
Authors: Loaiza Cano Gilberto
Published: September 2021

Este ensayo es una contribución a la historia del pensamiento en Colombia y estudia el manuscrito de José Eusebio Caro (1817-1853) titulado Mecánica social (1836) en que su joven autor pretendió establecer los fundamentos de una ciencia de la sociedad cuando el Estado intentaba construir el monopolio del conocimiento jurídico. Nuestro análisis sugiere que el pensamiento colombiano de esa época estuvo afiliado a los métodos y teorías del comportamiento humano y de organización de la sociedad provenientes de algunas corrientes del pensamiento francés del siglo XVIII e inicios del siglo XIX, particularmente los postulados del grupo reunido en la Société d’Observateurs de l´homme.
Monstruos semánticos: el empirismo de conceptos y su abordaje del contenido intencional
Authors: Serebrinsky Dalila
Published: September 2021

El empirismo de conceptos propuesto por Jesse Prinz pretende ser una teoría de conceptos que cumpla con todos los desiderata que, según el mismo autor, una teoría de conceptos debe cumplir y, a la vez, lo haga de la manera más económica posible. Con respecto al contenido intencional, propone una semántica informacional no atomista. Los conceptos, para Prinz, son meros detectores de rasgos perceptibles, es decir, entidades estructuradas, cuyas partes significativas obtienen su contenido de manera informacional. Es el objetivo de este trabajo mostrar que el empirismo de conceptos es incapaz de satisfacer el desideratum que se refiere a la explicación del contenido intencional. Argumentamos que los conceptos entendidos como meros detectores no logran dar cuenta satisfactoriamente del contenido de los conceptos sin caer en el problema de la disyunción y que son incompatibles con el externalismo propio de las teorías informacionales.
Aristotle and Boethius: Two Theses and Their Possibilities
Authors: López-Astorga Miguel
Published: September 2021

There is a kind of logical theses that can be a cognitive problem. They are theses that are not tautologies and people tend to accept as absolutely correct. This is the case of theses such as those of Aristotle and Boethius. This paper tries to give an explanation of the reasons why this happens. The explanation is based on the theory of mental models. However, it also resorts to modal logic and the account of the ideas presented by Lenzen. Thus, relating the general framework of the theory of mental models to basic aspects of modal logic and this last account, a possible solution of the problem is proposed.
“Hablarás de ti, pero no contarás sobre nosotros”. La confesión foucaultiana aplicada en la dinámica de consulta entre el policía nacional paraguayo y los psicólogos de la institución.
Authors: Peris Castiglioni Carlos Aníbal
Published: September 2021

Teniendo en cuenta el concepto de Michel Foucault sobre la confesión, se ha analizado al agente de la Policía Nacional del Paraguay según lo mencionado por los psicólogos de la institución. ¿Cómo se ha dado el contexto de atención?, y ¿cuáles han sido las fundamentales causales de consulta?, aquellas preguntas se radicaron en las indagaciones guías por parte de cuatro terapeutas que se desempeñaron en un hospital especializado y en dos comisarías de la ciudad de Asunción. Con respecto a las principales conclusiones, el agente ha necesitado de una imperiosa contención y de un profundo cambio en sus formas de ser, y modos de relacionarse con sus compañeros y con los externos a su profesión, población en general y allegados. La Policía Nacional Paraguaya no fue un grupo homogéneo, que solo se ha dedicado a acatar órdenes, ha gozado de una vivencia diaria, definida por sus prácticas que ha afectado a sus miembros y, en algunas ocasiones, la ha llevado a confesar sus dramas, con el fin de ser mejores personas, fundamentalmente en los contextos familiares; así, la confesión policial se entendería como una “técnica de sí”.
ОБҐРУНТУВАННЯ СТРАТЕГІЧНИХ НАПРЯМІВ ПІДВИЩЕННЯ РІВНЯ ЕКОНОМІЧНОЇ БЕЗПЕКИ РЕГІОНІВ (ЗА ДАНИМИ ДНІПРОПЕТРОВСЬКОЇ ОБЛАСТІ)
Authors: Ivanova Natalia
Published: September 2021

Within the article, strategies of increasing the economic security level of the regions on the basis of the proposed dy-namic two-factor matrix "the economic security level – the strategy", which defines the regions' economic security zones and corresponding strategies for enhancing the regional economic security, are substantiated. Integrated indicators of economic security of the region were used to construct the matrix, they were calculated according to the developed forecasting models, in particular for determining coordinates of the region - integral indicators by the component analysis; to select the scale of the matrix – integral indicator of the taxonomic analysis; to determine the diameter of the sphere on the plane– integral in-dex by the method of principal components. The proposed matrix is divided into three economic security zones, for which appropriate strategies for improving the economic security of the regions are set: safe zone - a strategy of growth that antici-pates growth (maintaining the achieved level of economic security and preventing potential threats); neutral zone – a strate-gy of adaptation according to which measures should be taken to adapt the economic security of regions to changes in the environment; unsafe zone - a strategy of transformation that involves transformational changes that address the priority areas of social and economic development in the region, as well as taking the necessary measures to counteract destabilizing factors of various kinds. It is also established that the economic security of Dnipropetrovsk region is characterized as safe during the study period, and therefore the most appropriate is a strategy of growth, which implementation ensures that the current level of economic security is maintained. The analysis of the existing strategies for economic development of the re-gions for which the growth strategies have been recommended allowed determining their strategic priorities: human capital development, reduction of intra-regional economic imbalances, rural development, environmental and energy security.
Presencia de músculos flexores accesorios del antebrazo durante osteosíntesis de fracturas de radio distal. Reporte de caso y análisis de literatura
Authors: Pinilla Pabón Edgar , Delgadillo Arias David , Achury Niño Adriana Carolina
Published: September 2021

Introducción. Las fracturas de muñeca son traumas frecuentes que requieren manejo quirúrgico en algunos casos. Las anomalías anatómicas musculares del antebrazo son variadas y están asociadas a múltiples manifestaciones clínicas. Debido al aumento en la incidencia de fracturas de radio distal, se ha incrementado la frecuencia de visualización de variantes musculares.Objetivo. Describir las posibles complicaciones intraoperatorias asociadas a la presencia de un flexor accesorio del antebrazo durante un abordaje palmar al radio distal para osteosíntesis.Materiales y métodos. Se realizó una revisión de la literatura en bases de datos y se seleccionaron los estudios clínicos que reportaban la presencia de un flexor accesorio en el antebrazo durante cirugías de fijación de radio distal. Se excluyeron los reportes cadavéricos o imagenológicos.Resultados. Se encontraron 1 066 reportes o series de casos, de los cuales se seleccionaron 4 artículos.Conclusiones. La frecuencia de reporte de variantes musculares en los ámbitos intraoperatorios está aumentando y su identificación puede disminuir complicaciones iatrogénicas y facilitar el manejo quirúrgico de fracturas de radio distal.
Sarampo no Nordeste: análise da cobertura vacinal e dos casos confirmados de 2016 a 2020
Authors: Lopes Claudia Alves dos Santos , Souza Fernanda de Oliveira , Santos Deisy Vital dos , Bomfim Graziele Santos Santana
Published: September 2021

Objetivo: Descrever a Cobertura Vacinal (CV) do sarampo, e a frequência de casos confirmados na região nordeste de 2016 a 2020. Métodos: Trata-se de um estudo descritivo, com análise quantitativa, por meio de dados secundários. A coleta de dados da CV e do monitoramento rápido de cobertura vacinal (MRC) foi realizada no SIPNI, enquanto os casos confirmados de sarampo e óbito foram extraídos do e-SIC e dos boletins epidemiológicos. Resultados: A CV de sarampo no Nordeste (2016 – 2020) encontra-se abaixo do esperado na rotina, tanto D1 e D2. No MRC de 1 a 4 anos, apenas as idades de 2 a 3 anos alcançou a meta de 95%. O número de casos de sarampo foi mais expressivo no ano de 2019, com um total de 268 casos. Em relação aos casos confirmados, não houve interferência direta com a CV, pois no ano de 2016 e 2017 as coberturas estavam abaixo do preconizado e, no entanto, não houve registro de nenhum caso. Acredita-se que houve falha na tabulação dos dados da cobertura. Conclusão: Observa-se que a CV com o componente sarampo esteve aquém do proposto pela OMS no Nordeste. Sugere-se revisão das coberturas e medidas de controle do vírus.
Thoracic abscess due to unusual migration of a ventriculoperitoneal shunt and literature review
Authors: Sayore Christine Milena , Hemama Mustapha , de Paule Kossi Adjiou Francois , Moune Michele Yollande , Sabur Safa , El Fatemi Nizare , El Maaqili Rachid
Published: September 2021

Background:

Thoracic complications of ventriculoperitoneal (VP) cerebrospinal fluid shunting are rare and the diagnosis is difficult without neurological impairment.

Case Description:

We report a case of a 36-year-old woman who had a VP shunt in the right side when she was 13 years for a posterior fossa ependymoma and hydrocephalus. 23 years after surgery, she developed acute yellowfish cough and sputum, and the computed tomography scan found an intrathoracic cyst. She had a thoracotomy for the cyst and during surgery, we found the peritoneal catheter of the VP shunt, with a collected abscess in the left side. The patient was treated for the abscess and the VP shunt was removed. We also review the literature cases of thoracic complications after VP shunts.

Conclusion:

Thoracic abscess due to VP shunt migration is extremely rare and could happen after a long time delay VP shunt surgery.
Rosalind and Morris Goodman Cancer Research Centre Annual Symposium | May 6-7, 2021
Authors:   The Rosalind and Morris Goodman Cancer Research Centre (GCRC)
Published: September 2021

n/a
Tiempos de vida y muerte
Authors: Gauta Brayan Sebastián
Published: September 2021

Desde la firma del Acuerdo de paz en Colombia han sido asesinados:442 líderes y lideresas sociales, 200 firmantes de la paz y43 de sus familiares. Que la paz no nos cueste la vida.
La aventura de ver con las manos
Authors: Buelvas Yury
Published: September 2021

La posibilidad de pensar en argumentos visuales implica una reconfiguración del concepto de argumento. Implica también que se amplíe el marco, y que este incluya las diferentes formas en las que los seres humanos materializamos nuestros pensamientos. En este artículo ahondaré en las dificultades que percibo sobre la enseñanza de la lógica en un modelo tradicional educativo; para ello, me centraré en un enfoque de pluralidad, que permite inventar y crear nuevas estrategias de enseñanza de lógica multimodal para el desarrollo de diferentes habilidades, proponiendo el acercamiento de la imagen a las personas ciegas a través de la adaptación de las ilustraciones argumentales en técnicas de alto-bajo relieve, escultura manual, 2D y 3D, en el marco del proyecto de investigación Análisis lógicos de discursos.
Designing with biological and social ecologies and synergies between them
Authors:   , Aranyi Ryan
Published: September 2021

There is a vast tradition of research on the biotic relationships between organisms, whereas there is only a small literature on social ecology, and very few document the synergies between them - especially in a way that would be relevant to a designer. This thesis first develops fieldwork techniques to document existing examples of the biological and social ecologies of Metrosideros excelsa and the synergies between these two types of ecology in an urban situation. This research is probably unique in employing and bringing together fieldwork studies of these two types of ecologies. The understanding of social ecologies draws upon the idea of ecological affordance, coined by J.J. Gibson (1992). It then explores how to design with this new understanding of these two ecologies and the synergy between them.