bluuebunny/crossref_metadata_2025_split huggingface dataset:
El uso de los cuentos y la creatividad para la formación del futuro profesorado de infantil en la enseñanza y aprendizaje de las matemáticas
Authors: García Lázaro Desiré , Garrido Abia Raquel , Marcos Calvo Miguel Ángel 
Published: March 2020

La formación del futuro docente demanda la necesidad de incluir recursos que faciliten procesos de enseñanza y aprendizaje y además, sean útiles para su incorporación posterior al mundo laboral. Usar el cuento como recurso educativo en la formación del profesorado en etapas infantiles permite tanto iniciar al alumnado en competencias relacionadas con la didáctica de las matemáticas como aprovechar el punto de vista innnovador que nos aportan los conocimimentos de neuroeducacion. En este artículo, se desarrolla una experiencia basada en la elaboración y diseño de un cuento matemático, con varios formatos distintos, y con contenidos matemáticos legislados. Se analizan los trabajos realizados por 108 alumnos pertenecientes al Grado de Educación Infantil y Doble Grado en Infantil y Primaria de la URJC, curso académico 2018/19. Para valorar la aceptación entre el alumnado, se realiza una entrevista semiestructurada y un cuestionario de respuesta voluntaria. Los resultados obtenidos demuestran que este tipo de experiencias son necesarias en la formación del profesorado ya que consiguen motivar, potenciar la creatividad y aumentar la implicación en la materia, además de trabajar la competencia matemática desde el punto de vista didáctico, obteniendo un aumento en el rendimiento y mejor satisfaccion de cara la incorporacion al mundo laboral.
The current training of the future teacher requires to include resources that facilitate the teaching and learning processes and, in addition, be useful for their incorporation into the labor market. The use of story as an educational resource in the training of teachers in children stages allows students to be initiated in competences related to the didactics of mathematics as well as how to take advantage of the innovative point of view that the neuroeducation knowledge brings us. In this article, an experience based on the elaboration and design of a mathematical story is developped, in four different formats, in which the mathematical contents are regulated. The work carried out by 108 students belonging to the Degree in Early Childhood Education and Double Degree in Infant and Primary of the URJC, academic year 2018/19 is analysed. To assess the acceptance among the students, a semi-structured interview and a voluntary response questionnaire is carried out. The results show that this type of experiences are necessary in teacher training since they help to motivate, enhance creativity and increase the involvement in the subject, a part from working on mathematical competence from the didactic point of view, obtaining an increase in performance and better satisfaction in the face of the incorporation into the world of work.
La Mejora de la Participación e Implicación de las Familias en la Escuela: un Programa en Acción
Authors: Santos Rego Miguel A. , Lorenzo Moledo Mar , Priegue Caamaño Diana 
Published: March 2020

Tomando en consideración la relevancia de poner en marcha acciones que favorezcan la relación familia-escuela, el estudio examina la medida en que el programa socioeducativo ECOFASE ha cumplido con la eficacia prevista respecto de la mejora de los niveles de participación familiar en la escuela y de la implicación educativa de los progenitores en el hogar. En concreto, el programa se implementó en siete (7) centros de educación secundaria de la Comunidad Autónoma de Galicia, contando con la colaboración de 97 familias. Los resultados que hemos obtenido confirman que el programa, en términos generales, ha sido efectivo y ha logrado satisfacer las expectativas de las familias. De una parte, la intervención llevada a cabo ha servido para que las familias refuercen sus buenas prácticas de implicación educativa en el hogar, caso del acompañamiento en el estudio y la ayuda y apoyo prestados a sus hijas/os. De otra, ha incidido significativamente en la relación que mantienen los padres y madres con el centro escolar y, en especial, con el profesor tutor.
Taking into consideration the relevance of implementing actions that favor the family-school relationship, this study aims to examine the way in which the socio-educational program ECOFASE has complied with the planned effectiveness in relation to the improvement of the levels of family participation at school and parents´ educational involvement at home. Specifically, the program was implemented in seven (7) secondary schools of the Autonomous Community of Galicia, with the collaboration of 97 families. The results we have obtained confirm that, in general terms, the program has been effective and has managed to meet the families’ expectations. On the one hand, the intervention carried out has helped families to reinforce their good practices of educational involvement at home, as the case of accompaniment in the study as well as helping and support provided to their children. On the other, it has had a significant impact on the relationship that parents maintain with the school and, especially, with the tutor.
La formación del profesorado sobre el autismo basada en la evidencia: la Instrucción e Intervención Mediada por Pares
Authors: Larraceleta González Aitor 
Published: March 2020

En este trabajo se aborda la “Instrucción e Intervención mediada por pares”, una de las veintisiete prácticas focalizadas basadas en la evidencia establecidas por el National Professional Development Center on Autism Spectrum Disorders estadounidense (Wong et al., 2014), dirigidas al profesorado para la educación del alumnado con Trastorno del Espectro Autista (TEA). Para ello, se recogen sus fundamentos básicos y se recomienda una secuencia de planificación, implementación y evaluación, con el objetivo de mejorar las habilidades sociales, comunicativas y académicas, de atención conjunta y juego y la preparación para la vida escolar de este alumnado, siguiendo un enfoque “de la ciencia a la práctica”.
This paper deals with “Peer mediated Instruction and Intervention”, one of the twenty-seven focused evidence-based practices established by the National Professional Development Center on Autism Spectrum Disorders (Wong et al., 2014), aimed at teachers for the education of students with Autism Spectrum Disorder (ASD). For this purpose, its basic fundamentals are collected and the sequence of planning, implementation and evaluation is recommended, with the objective to improve the social, communicative, academic, joint attention and play skills and the preparation for the school life of these students, following a "science to practice” approach.
Charging Quantum Batteries with a General Harmonic Driving Field
Authors: Chen Jie , Zhan Liyao , Shao Lei , Zhang Xingyu , Zhang Yuyu , Wang Xiaoguang 
Published: March 2020

AbstractA general harmonic driving field was considered for improving the charging efficiency of the quantum battery system. Charge saturation was used to describe the charging efficiency, where the charging mode is divided into saturated and unsaturated. The relationships between the time‐dependent charge saturation and parameters of the general driving field were evaluated both analytically and numerically. The Floquet theorem was used to express time‐dependent charge saturation with the quasienergy and Floquet states of the system. The analytical and numerical results were used to identify the best parameter values for optimizing the charging efficiency.
The Effect of the Spin Angular Momentum on the Tight‐Focusing Vortex Hollow Gaussian Beams
Authors: Ye Feng , Zou Jiawei , Deng Dongmei 
Published: March 2020

AbstractThe propagation properties of a hollow Gaussian beam (HGB) carrying on‐axis and off‐axis vortices through a high numerical aperture lens are investigated. The intensity of the focused beam in the focal plane can be controlled by choosing the different topological charges, the beam order, and the semi‐aperture angle. As intrinsic properties, vortex beams possess both spin and orbital angular momenta. The spin angular momenta (SAM) density can be treated as a vector in 3D since it exists in arbitrary orientation during the beam propagation. The vectors of SAM density orientation of the focused beam in 3D rotate around the central axis whose locations mainly rely on the vortices. The magnitude of the SAM density near the focus plane abruptly varies by altering the focal length of the lens. Under tightly focusing condition, two new pairs of vortices generate alternately on x and y axes in the vectorial electric fields, while the topological charges increase by one.
A Nanoboat with Fused Concave N‐Heterotriangulene
Authors: Zhou Leyong , Zhang Gang 
Published: March 2020

AbstractThe surface extension of all‐carbon based bowl‐shaped molecules, such as corannulene and sumanene, to synthesize even larger buckybowls has been widely studied, leaving other concave compounds with heteroatoms less considered. Herein we present a highly curved molecule synthesized via stepwise cyclization of fjords of a bisacridone derivative. Crystallographic analysis unambiguously confirmed a boat‐shaped structure with deformed bottom benzene ring. Theoretical calculation unravels an inversion process with an S‐shaped transition structure rather than a planar one. The enlarged boat demonstrates interesting properties, such as red shifts in absorption and emission spectra, enhanced emission intensity, and convergent frontier molecular orbital energy levels, in comparison to the related concave N‐heterotriangulene.
Demographic trends in the incidence of young-onset colorectal cancer: a population-based study
Authors: Chambers A C , Dixon S W , White P , Williams A C , Thomas M G , Messenger D E 
Published: March 2020

Abstract

Background
Evidence is emerging that the incidence of colorectal cancer is increasing in young adults, but the descriptive epidemiology required to better understand these trends is currently lacking.

Methods
A population-based cohort study was carried out including all adults aged 20–49 years diagnosed with colorectal cancer in England between 1974 and 2015. Data were extracted from the National Cancer Registration and Analysis Service database using ICD-9/10 codes for colorectal cancer. Temporal trends in age-specific incidence rates according to sex, anatomical subsite, index of multiple deprivation quintile and geographical region were analysed using Joinpoint regression.

Results
A total of 56 134 new diagnoses of colorectal cancer were analysed. The most sustained increase in incidence rate was in the group aged 20–29 years, which was mainly driven by a rise in distal tumours. The magnitude of incident rate increases was similar in both sexes and across Index of Multiple Deprivation quintiles, although the most pronounced increases in incidence occurred in the southern regions of England.

Conclusion
Colorectal cancer should no longer be considered a disease of older people. Changes in incidence rates should be used to inform future screening policy, preventative strategies and research agendas, as well as increasing public understanding that younger people need to be aware of the symptoms of colorectal cancer.
Cation Deficiency Tuning of LaCoO3 Perovskite as Bifunctional Oxygen Electrocatalyst
Authors: Wang Haizhen , Chen Xinqi , Huang Di , Zhou Meng , Ding Dong , Luo Hongmei 
Published: March 2020

AbstractOxygen electrocatalysis, including both oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), dominates the performance of various electrochemical energy conversion and storage systems. However, the practical applications of these devices are limited as a result of the sluggish kinetics of OER and ORR as well as the high cost and instability of the state‐of‐the‐art noble metal catalyst used in these systems. In this study, cation deficiency is introduced to the A‐site of perovskite LaCoO3 synthesized via polymer‐assisted approach to enhance the electrocatalytic activity of both OER and ORR, leading to the boosted bifunctionality of the resultant electrocatalysts, which might be attributed to oxygen vacancy introduction in perovskites. The bifunctionality of the A‐site deficiency perovskite (ΔE=0.948 V) is comparable or even better than the pristine LaCoO3 (ΔE=1.063 V) as well as the reported state‐of‐the‐art electrocatalysts, including both perovskites and noble metal electrocatalysts. The stability test also indicates their good stability under alkaline solutions, suggesting that the as‐prepared materials can be good candidates as bifunctional electrocatalysts in oxygen‐based electrochemical devices, such as fuel cells and metal‐air batteries. This work introduces the A‐site cation deficiency strategy to improve the bifunctional electrocatalytic performance of perovskites, and highlights the facile polymer‐assisted approach for perovskites synthesis.
Electrochemical Reduction of [Ni(Mebpy)3]2+: Elucidation of the Redox Mechanism by Cyclic Voltammetry and Steady‐State Voltammetry in Low Ionic Strength Solutions
Authors: Barman Koushik , Edwards Martin A. , Hickey David P. , Sandford Christopher , Qiu Yinghua , Gao Rui , Minteer Shelley D. , White Henry S. 
Published: March 2020

AbstractBipyridine complexes of Ni are used as catalysts in a variety of reductive transformations. Here, the electroreduction of [Ni(Mebpy)3]2+ (Mebpy=4,4′‐dimethyl‐2,2′‐bipyridine) in dimethylformamide is reported, with the aim of determining the redox mechanism and oxidation states of products formed under well‐controlled electrochemical conditions. Results from cyclic voltammetry, steady‐state voltammetry (SSV) and chronoamperometry demonstrate that [Ni(Mebpy)3]2+ undergoes two sequential 1e reductions at closely separated potentials (E10’=−1.06±0.01 V and E20’=−1.15±0.01 V vs Ag/AgCl (3.4 M KCl)). Homogeneous comproportionation to generate [Ni(Mebpy)3]+ is demonstrated in SSV experiments in low ionic strength solutions. The comproportionation rate constant is determined to be >106 M−1 s−1, consistent with rapid outer‐sphere electron transfer. Consequentially, on voltammetric time scales, the 2e reduction of [Ni(Mebpy)3]2+ results in formation of [Ni(Mebpy)3]+ as the predominant species released into bulk solution. We also demonstrate that [Ni(Mebpy)3]0 slowly loses a Mebpy ligand (∼10 s−1).
Design of Steel Structure for Retaining of Existing Façade (10 story height) ‐ Jardins de S. Mamede Building (Lisbon)
Authors: Pires Miguel M. 
Published: March 2020

SummaryThis communication describes the set of problems, challenges and solutions found during the conception project of 30‐metre hight steel façade containment structure inside the existing building, developed in the context of the rehabilitation project of the Jardins de S. Mamede building in Lisbon. Despite the height equivalent to 10 floors and the demanding deformation criteria it was possible to conceive a retaining steel structure of Existing Façade of reduced dimensions, in a plant compatible with the existing structures (to demolish), future definitive structure (to be built) and all other needs.
NETWORK ARCH BRIDGES WITH ROLLED SECTIONS: IDEAS FOR ECONOMIC AND DURABLE DETAILING
Authors: Zanon Riccardo , Matos Rui , Rademacher Dennis , Lorenc Wojciech 
Published: March 2020

AbstractIn the 50‐ to 120‐meter span range, the bowstring bridge (arch above the traffic way anchored in the deck acting as tie so to equilibrate the horizontal component) is an aesthetic and effective solution when available construction height is limited. Beside the bridges realized as landmarks and therefore designed with specific architectural features, there are more and more realizations characterized by pragmatic structural choices aiming at optimized and economic construction. Different from vertical or radial hanger arrangement, the network bridge minimizes the bending moments thanks to the optimized arrangement, with the arch working mainly in compression with very little eccentricity. For this case, the arches can be realized with heavy rolled HD sections in high steel strength, developing an effective and economic solution.
HUMAN COMFORT ANALYSIS OF STEEL‐CONCRETE COMPOSITE BUILDINGS SUBJECTED TO THE WIND DYNAMIC ACTION
Authors: de Souza Bastos Leonardo , da Silva José Guilherme Santos 
Published: March 2020

AbstractStructural systems designed for tall buildings move due to wind action, having in mind that these structures have become more slender and more sensitive to dynamic wind excitations and thus more vulnerable to excessive vibrations. This way, this research work aims to evaluate the dynamic structural behaviour of a 48‐story steel‐concrete composite building, total height of 172.8 m, storey height equal to 3.6 m, dimensions of 45 m by 32 m, when subjected to wind actions. This investigation considers the results of the non‐deterministic dynamic analysis of the building, aiming to evaluate the service limit states. The conclusions obtained of this study, based on the peak accelerations values, indicate that the investigated building does not satisfy the human comfort criteria.
STIFFNESS OF CORRUGATED STEEL PLATE ON BURIED IN SURROUNDIG SOIL US AN ECOLOGICAL BRIDGE STRUCTURE
Authors: Machelski Czesław , Czerepak Adam , Basar Onur 
Published: March 2020

AbstractShell deformation when backfilling soil‐steel structures of corrugated sheet is substantial and can be controlled using geodetic techniques. Typically, crown deflection is observed, which is subject to significant changes during the backfilling process. In the initial phase of the construction, the shell undergoes uplift followed by reduction. The paper analyses changes to the curvature radius as a function of the vertical displacement of the shell crown. A characteristic graph is thus created to assess the safety of the shell (and the structure) both during construction (as in the paper) and exploitation. The paper presents an algorithm of structure safety assessment based on shell deformation.
BEHAVIOUR OF SLENDER STIFFENERS IN EXTENDED END‐PLATE JOINTS
Authors: Kuříková Marta , Wald František , Kabeláč Jaromír 
Published: March 2020

AbstractThe paper shows the current trends in advanced modelling of joints and differences of the research oriented and design‐oriented models. The behaviour of the slender stiffeners in extended end‐plate joints is presented. The finite element method is employed to examine the resistance of a joint with an extended endplate connection. The FE model is validated to results of experimental tests and verified by an analytical solution based on existing formulas.
EXPERIMENTAL STUDY ON SQUARE STEEL TUBULAR COLUMNS UNDER COMPRESSIVE AXIAL FORCE WITH CYCLIC BIAXIAL BENDING MOMENT
Authors: Onogi T. , Sato A. , Yoshioka S. 
Published: March 2020

AbstractSteel column testing in which a compressive axial force and a cyclic biaxial bending moment were applied simultaneously was conducted in order to clarify the structural performance of the column. Although the AIJ beam‐column design formula provided overly conservative results, the correlation equation for full plasticity evaluated the results with reasonable accuracy. The loading direction was not crucial to the plastic deformation capacity. As a result, the limitation applied to columns in order to guarantee sufficient plastic deformation under a loading direction of 0‐degree can also be used for columns with a loading direction of 45‐degree.
LASTEICON OPEN‐TO‐CHS BEAM‐TO‐COLUMN CONNECTIONS
Authors: Das Rajarshi , Henriques José , Degée Hervé 
Published: March 2020

AbstractThis paper presents different types of two‐way and four‐way nominally pinned as well as moment resisting open‐to‐CHS connection configurations obtained via an innovative “passing‐through” approach and primarily proposed through the European research project LASTEICON. The two‐way moment resisting connections are emphasized in this article. The nonlinear behaviour of the connections is discussed through a suitable understanding of the force‐transfer mechanism involved. Furthermore, these innovative connections are compared with the directly welded conventional open‐to‐CHS connections to highlight the advantages offered by the “passing‐through” approach.
Solid‐Phase Multicomponent Synthesis of 3‐Substituted Isoindolinones Generates New Cell‐Penetrating Probes as Drug Carriers
Authors: Massarano Tlalit , Mazir Alexandra , Lavi Ronit , Byk Gerardo 
Published: March 2020

AbstractA modular solid‐phase multicomponent reaction for the synthesis of 3‐substituted isoindolinone derivatives has been carried out. A mixture of a chiral β‐keto lactam, an aldehyde, an isocyanide and a dienophile react to produce chiral 3‐substituted isoindolinones in one pot. Modularity was accomplished by using solid supported aldehydes and dienophiles. Optimization was achieved by using microwave as the source of energy. The reaction was also performed on a biologically relevant well‐known programed cell death‐inducing peptide D(KLAKLAK)2 on solid phase. The molecules show significant fluorescence with large Stokes shifts and fast cell penetration. The chimeric peptides can be tracked under a microscope thus proving the potential of the probes as cell sensors. They were efficiently internalized compared to unlabeled peptide, with a concomitant induction of programed cell death, thereby proving their potential as drug carriers.
High‐density SNP‐based genetic diversity and heterotic patterns of tropical maize breeding lines
Authors: Silva Karla Jorge , Guimarães Claudia Teixeira , Guilhen José Henrique Soler , Guimarães Paulo Evaristo de Oliveira , Parentoni Sidney Netto , Trindade Roberto dos Santos , de Oliveira Amanda Avelar , Bernardino Karine da Costa , Pinto Marcos de Oliveira , Dias Kaio Olímpio das Graças , Bernardes Carolina de Oliveira , Dias Luiz Antônio dos Santos , Guimarães Lauro José Moreira , Pastina Maria Marta 
Published: March 2020

AbstractUnderstanding the crop diversity is critical for a successful breeding program, helping to dissect the genetic relationship among lines, and to identify superior parents. This study aimed to investigate the genetic diversity of maize (Zea mays L.) inbred lines and to verify the relationship between genetic diversity and heterotic patterns based on hybrid yield performance. A total of 1,041 maize inbred lines were genotyped‐by‐sequencing, generating 32,840 quality‐filtered single nucleotide polymorphisms (SNPs). Diversity analyses were performed using the neighbor‐joining clustering method, which generated diversity groups. The clustering of lines based on the diversity groups was compared with the predefined heterotic groups using the additive genomic relationship matrix and unweighted pair group method with arithmetic mean. Additionally, the genetic diversity of lines was correlated with yield performance of their corresponding 591 single‐cross hybrids. The SNP‐based genetic diversity analysis was efficient and reliable to assign lines within predefined heterotic groups. However, these genetic distances among inbred lines were not good predictors of the hybrid performance for grain yield, once a low but significant Pearson's correlation (.22, p‐value ≤ .01) was obtained between parental genetic distances and adjusted means of hybrids. Thus, SNP‐based genetic distances provided important insights for effective parental selection, avoiding crosses between genetically similar tropical maize lines.