bluuebunny/crossref_metadata_2025_split huggingface dataset:
Green synthesis of silver nanoparticles (Ag-NPs) from Olea dioica Roxb., leaf extracts and its biological activity
Authors: Pratap G. K. , Shantaram Manjula 
Published: January 2021

Introduction and Aim: The silver nanoparticles have attained a special place in the area of nanotechnology because of their different biological applications. Fabrication of nanoparticles using green synthesis is done because of its wide applications in different fields such as biomedical, medicine, agriculture and food engineering. This study is to develop an easy and eco-friendly method for the synthesis of Ag-NPs using leaf extracts of the medicinal plant.
Materials and Methods: The medicinal plants are rich sources of various medicinal properties. Olea dioica Roxb., leaf extract was used to investigate the effects of Ag-NPs having antibacterial activity and antioxidant capacity. The plant leaf extract contains flavonoids, alkaloids, saponins, and phenolic compounds which acts as reducing and stabilizing agents. The green synthesized silver nanoparticles were characterized by various techniques like UV- visible spectrophotometer, FTIR spectroscopy, and SEM analysis.
Results: The synthesis of sliver nanoparticles from plant source, and analysis of nano particles by UV-Vis spectra, SEM and FTIR. The biological evaluations of Ag-NPs indicated an excellent inhibitory efficacy, antioxidant and antimicrobial activity for their future applications in medicine.
Conclusion: The synthesized silver nanoparticles exhibited potent antioxidant and antimicrobial activities against Gram-positive and Gram-negative bacteria. The silver (Ag-NPs) nanoparticles synthesized by the pot green synthesis method proves its potential use in various medical applications.
Keywords: Silver nanoparticles; Medicinal plants; Ag-NPs; Olea dioica Roxb.,
Autores Corporativos Nacionales
Authors: Loyola de Galindo Zoraida 
Published: January 2021

En el año 1964 a solicitud de la Srta. Graciela Sánchez Cerro, quien desempeñaba el cargo de Presidente de la Asociación Peruana de Bibliotecarios, seeligió una Comisión encargada de compilar los Registros de asientos de Autores Corporativos Oficiales Nacionales existentes en los Departamentos de Clasificación y Catalogación y de Publicaciones Oficiales de la Biblioteca Nacional, comisión que fue integrada por las bibliotecarias Nancy Gastañeta de Sobero, Lucila Valderrama G., y la que suscribe, Zoraida Loyola de Galindo. Esta lista de encabezamientos fue presentada en el mismo año al Ninth Seminar on the Acquisition of Latin American Library Materials auspiciada por la Washington University Library y la Unión Panamericana.
Acuarelas desconocidas de Pancho Fierro
Authors: Rivera Martínez Edgardo 
Published: January 2021

La mayor parte de las acuarelas de Pancho Fierro se halla, actualmente, en colecciones que se han hecho famosas, como la de Ricardo Palma (hoy propiedad de la Municipalidad de Lima, y exhibida en el Museo de Arte), la colección Lavalle, la que perteneció a Max Jacohy. Otras colecciones, como la de la Hispanic Society, de Nueva York, han reunido estampas que se estima son obra de imitadores del artista limeño. Tenemos noticia reciente de que en Rusia, y también en Mendoza, Argentina, se conservan acuarelas hasta hoy ignoradas entre nosotros. A estas series debemos agregar, ahora, la que se guarda en el Cabinet des Estampes de la Bibliotheque Nationale, en París.
No hemos encontrado ninguna información o referencia escrita sobre las acuarelas que la componen. Creemos, por lo tanto, que ésta es la primera vez que son dadas a conocer, Y que quienes han estudiado y estudian la persona y la obra de Pancho Fierro, dispondrán en adelante de un nuevo conjunto de sus estampas, excepcionalmente importante por su calidad, por su autenticidad, por su interés documental e iconográfico, y por los problemas que plantea y las nuevas perspectivas que exige.
Basabose, Philippe et Josias Semujanga, Le Roman francophone et l’archive coloniale, collection Horizons francophones, Paris, L’Harmattan, 2020, pp. 264. ISBN 978-2-343-15320-9
Authors: Woodward Servanne 
Published: January 2021

Laissant de côté la distinction histoire-mémoire, parce qu’en littérature il s’agit d’un ensemble libre de configurations narratives qui donnent « un sens », selon Paul Ricœur, Basabose et Semujanga procèdent à la présentation des articles qui, toutes régions francophones confondues, se penchent sur « l’histoire coloniale » et son « sens politique dans les sociétés contemporaines » telles que reflétées dans les littératures francophones (p. 10). Il s’agit de mesurer, de juger les modes de leadership des dirigeants, ou alors les points de rencontres culturels, où la relation n’est pas basée sur un mode de domination. Parmi les phénomènes de continuité se trouvent les enjeux de l’éducation et donc de l’école, et surtout aux Antilles, la question de l’esclavage, l’horreur locale du dix-septième et dix-huitième siècles, fondatrice de l’identité collective. « [L]e rôle de la littérature dans l’espace public » (p. 10) est finalement la question fondamentale du volume, qui sera sans doute utilisé en Amérique du Nord dans les cours de troisième et quatrième années d’université, ou les cours de Maîtrise et doctorat, afin de remplir le mandat gouvernemental de créer des citoyens meilleurs, parce qu’avertis des questions qui structurent les accords et les conflits des divers membres des sociétés américaines ou canadiennes.
Ciento cincuenta años de los inicios de la educación parvularia pública en Chile
Authors: Peralta Espinosa M. Victoria 
Published: January 2021

El presente artículo sintetiza los antecedentes más relevantes de una investigación histórica realizada en el Instituto Internacional de Educación Infantil de la Universidad Central, que develó que los inicios de la educación parvularia pública en Chile tienen su origen en una Escuela de Párvulos fundada en 1864. La metodología empleada fue la heurística, la crítica interna y externa de las fuentes documentales y la síntesis historiográfica.
De esta manera se llegó a establecer que esta primera escuela de párvulos ubicada en el entonces Departamento de Santiago, fue dirigida por una Hermana de la Caridad que era una institutriz francesa, sor María Luisa, quien traía el aporte de la naciente pedagogía de las “salles de asile” educativas. Se desempeñaban directamente con los niños y niñas, dos maestras chilenas egresadas de la Escuela Normal de Preceptoras, Doña Carmen Torres y doña Emilia Lavín.
Junto con dar cuenta del contexto y otros antecedentes que posibilitaron este temprano inicio de la atención a párvulos por parte del Estado de Chile, entidad que asumió todos los gastos de este establecimiento mediante un decreto firmado por el Ministro del sector, don Federico Errázuriz, el artículo valora el carácter fundante de esta iniciativa.
A partir de ello, se invita a reflexionar en cuanto al significado y aporte que tienen 150 años de construcción de conocimiento y de múltiples experiencias de la Educación Parvularia chilena, lo que es un saber importante de tener presente cuando se está en una Reforma Educacional como es la que experimenta el país en estos momentos.
EOCENE MAGMA PLUMBING SYSTEM BENEATH CORTEZ HILLS CARLIN-TYPE GOLD DEPOSIT, NEVADA: IS THERE A DEEP-SEATED PLUTON?
Authors: Mercer Celestine N. 
Published: January 2021

Abstract
The magmatic-hydrothermal conceptual model for Carlin-type gold deposit genesis calls upon deep-seated Eocene plutons as the primary source of gold-bearing fluids. However, geophysical surveys, geologic mapping, drilling, geochronology, isotopic tracers, and fluid inclusion chemistry have returned ambiguous evidence for the existence of such plutons. The high-grade Cortez Hills gold deposit in northern Nevada hosts shallow, Eocene syn- and postmineralization intrusions, offering an ideal site to investigate the existence of a deep-seated pluton beneath the district. Here, major and trace element analyses of quartz-hosted melt inclusions from four Eocene rhyolite dikes cropping out within the Cortez Hills pit and results from independent thermobarometers provide a window into the subsurface Eocene magmatic plumbing system to test the existence of a deep-seated source pluton. Dissolved volatile contents, melt inclusion entrapment pressures, and thermodynamic phase equilibria indicate that dike magmas were sourced from ~4- to ≥9-km depth from a polybaric magma reservoir residing as a physically and geochemically interconnected crystal mush with extractable or eruptible magma pockets. Magmas ascended adiabatically (nearly isothermally), exsolving fluids, evolving modestly by fractional crystallization, while trapping quartz-hosted melt inclusions steadily from depth to subvolcanic levels where they were emplaced. These data represent the first unequivocal evidence for a deep-seated magma reservoir from which fluid-saturated magma emanated and released magmatic fluids beneath the Cortez district during gold mineralization. However, further investigation into the specific metallogenic potential and metal budget of parental magmas and the partitioning of gold between silicate melt and aqueous fluids will be necessary to provide evidence that exsolved magmatic fluids may have been gold bearing.
noción de daño y su rol en los juicios morales. Un debate abierto
Authors: Silva Carrero Gustavo Adolfo , Reyes Higuera Gustavo Alejandro , Peña Camargo Gustavo Adolfo , Rosas López Alejandro 
Published: January 2021

Investigadores pertenecientes a la tradición de la psicología del desarrollo cognitivo han llevado a cabo estudios que sugieren que existe un vínculo entre la percepción de daño y el dominio moral. Frente a esta propuesta unificadora del dominio moral han surgido críticas desde la psicología cultural. Haidt publicó en 1993 uno de los estudios más influyentes en esta línea, afirmando haber encontrado evidencia que sugiere la existencia de dominios morales no vinculados a la noción de daño. En este artículo se hará una presentación general del debate en torno al contenido del dominio moral. Luego presentaremos y evaluaremos el estudio de Haidt et al. (1993). Por último, presentamos resultados experimentales que cuestionan las conclusiones de ese estudio y sugieren que el debate sigue abierto.
Researchers belonging to the tradition of cognitive-developmental psychology have suggested studies that the perception of harm is central to the Moral Domain. This unifying proposal of the Moral Domain has provoked the criticisms of researchers working in Cultural Psychology. Haidt published in 1993 a very influential study, claiming to have found evidence for the existence of Moral Domains not linked to the notion of harm. In this paper, we briefly present the debate around the content of the moral domain. We then critically examine the study by Haidt et al. (1993). Finally, we present experimental results that question the conclusions of their study and suggest that the debate is still open.
Datación de la lengua del lybro de Magyka (MS. 5-2-32, Biblioteca Colombina, Sevilla)
Authors: Aléxia Duchowny , Luíza Pereira 
Published: January 2021

El objetivo de este trabajo es identificar la fecha aproximada de la producción del texto del manuscrito Lybro de magyka, la tercera parte de una obra sobre astrología, en espanõl, comprada por Hernando Colón en 1527, que se conserva hoy en la Biblioteca Colombina, Sevilla, bajo la inscripción Ms. 5-2-32. Nuestra hipótesis es que el texto fue escrito entre los siglos XIII y XVI. Por lo tanto, la base teórica está constituida por gramáticas históricas de la lengua española que traen las siguientes características representativas del español medieval que nos permitieran elaborar criterios para el análisis que comprobarían o no la hipótesis inicial: 1) la formación de adverbios con el sufijo -mientre; 2) los masculinos hechos en -a que adoptan concordancia femenina; 3) la aspiración de la f- inicial; 4) el cambio de la copulativa et para y; 4) el adverbio suso. Los resultados permiten observar que la lengua del manuscrito fecha probablemente de finales del siglo XIV o del siglo XV, lo que se encuentra de acuerdo con las hipótesis de autoría propuestas por los trabajos acerca del Lybro de magyka hasta el momento. Así, el presente estudio contribuye para la reconstrucción de la historia del códice y para los estudios acerca de la lengua española.
The objective of this work is to identify the approximate date of the production of the text of the manuscript Lybro de magyka, the third part of a work on astrology, in Spanish, purchased by Hernando Colón in 1527, which is preserved today in the Biblioteca Colombina, Seville, Spain, under the registration Ms. 5-2-32. Our hypothesis is that the text was written between the thirteenth and sixteenth centuries, and is a copy of a Catalan translation. Therefore, the theoretical basis is constituted by works of internal and external history of the Spanish language that bring representative characteristics of the medieval Spanish. The characteristics below allow to elaborate criteria for the analysis that would verify or not the initial hypothesis: 1) the formation of adverbs with the suffix -mientre ; 2) the masculine ones made in -a that adopt feminine concordance; 3) the change of the copulative et to y; The results show that the language of the manuscript probably dates from the fifteenth century, which is in accordance with the hypotheses of authorship proposed by the works on the Lybro de Magyka so far. Thus, the present study contributes to the reconstruction of the history of the codex and to the studies about the Spanish language.
In situ dissecting the evolution of gene duplication with different histone modification patterns based on high-throughput data analysis in Arabidopsis thaliana
Authors: Wang Jingjing , Orlov Yuriy L. , Li Xue , Zhou Yincong , Liu Yongjing , Yuan Chunhui , Chen Ming 
Published: January 2021

Background
Genetic regulation is known to contribute to the divergent expression of duplicate genes; however, little is known about how epigenetic modifications regulate the expression of duplicate genes in plants.

Methods
The histone modification (HM) profile patterns of different modes of gene duplication, including the whole genome duplication, proximal duplication, tandem duplication and transposed duplication were characterized based on ChIP-chip or ChIP-seq datasets. In this study, 10 distinct HM marks including H2Bub, H3K4me1, H3K4me2, H3K4me3, H3K9ac, H3K9me2, H3K27me1, H3K27me3, H3K36me3 and H3K14ac were analyzed. Moreover, the features of gene duplication with different HM patterns were characterized based on 88 RNA-seq datasets of Arabidopsis thaliana.

Results
This study showed that duplicate genes in Arabidopsis have a more similar HM pattern than single-copy genes in both their promoters and protein-coding regions. The evolution of HM marks is found to be coupled with coding sequence divergence and expression divergence after gene duplication. We found that functionally selective constraints may impose on epigenetic evolution after gene duplication. Furthermore, duplicate genes with distinct functions have more divergence in histone modification compared with the ones with the same function, while higher expression divergence is found with mutations of chromatin modifiers. This study shows the role of epigenetic marks in regulating gene expression and functional divergence after gene duplication in plants based on sequencing data.
Synthesis and characterization of boron‐acrylate/Santa Barbara Amorphous‐15 polymer composite
Authors: Aliyeva Nargiz , Canak Tuba Cakir , Serhatlı İbrahim Ersin 
Published: January 2021

AbstractIn the present work, boron‐acrylate/Santa Barbara Amorphous (SBA)‐15 polymer composite was synthesized using free radical polymerization method. Firstly, SBA‐15 was functionalized with 3‐(trimethoxysilyl)propyl methacrylate to obtain chemically bonded boron acrylate (BAc) polymer on the SBA‐15 surface. The structural analysis was evaluated via Fourier‐transform infrared spectroscopy and solid‐state nuclear magnetic resonance 13C. Samples were also characterized by using scanning electron microscopy, X‐ray powder diffraction, N2 adsorption/desorption and thermogravimetric analysis. In order to examine the BAc polymers in the mesopores, the silica framework was removed via hydrofluoric acid etching process. The results indicated that the synthesis of boron‐acrylate/SBA‐15 polymer composite was performed successfully. Thermal stabilities of the composites were higher with greater amounts of BAc polymer in mesopores under oxidative conditions.
Changes in Electroencephalogram Coherence in Adolescents With Autism Spectrum Disorder After a Social Skills Intervention
Authors: Haendel Angela D. , Barrington Alexander , Magnus Brooke , Arias Alexis A. , McVey Alana , Pleiss Sheryl , Carson Audrey , Vogt Elisabeth M. , Van Hecke Amy Vaughan 
Published: January 2021

Autism spectrum disorder (ASD) is a developmental condition that affects social communication and behavior. There is consensus that neurological differences are present in ASD. Further, theories emphasize the mixture of hypo‐ and hyper‐connectivity as a neuropathologies in ASD [O'Reilly, Lewis, & Elsabbagh, 2017]; however, there is a paucity of studies specifically testing neurological underpinnings as predictors of success on social skills interventions. This study examined functional neural connectivity (electroencephalogram [EEG], coherence) of adolescents with ASD before and after the Program for the Education and Enrichment of Relational Skills (PEERS®) intervention, using a randomized controlled trial of two groups: an Experimental ASD (EXP) Group and a Waitlist Control ASD (WL) Group. The study had two purposes. First, the study aimed to determine whether changes in EEG coherence differed for adolescents that received PEERS® versus those that did not receive PEERS®. Results revealed a significant increase in connectivity in the occipital left to temporal left pair for the EXP group after intervention. Second, the study aimed to determine if changes in EEG coherence related to changes in behavior, friendships, and social skills measured by questionnaires. At post‐intervention, results indicated: (a) positive change in frontal right to parietal right coherence was linked to an increase in social skills scores; and (b) positive changes in occipital right to temporal right coherence and occipital left to parietal left coherence were linked to an increase in the total number of get‐togethers. Results of this study support utilizing neurobehavioral domains as indicators of treatment outcome.Lay Summary: This study examined how well various areas of the brain communicate in adolescents with ASD before and after a social skills intervention. Results revealed increased connectivity in the adolescents that received the intervention. Secondly, the study aimed to determine if changes in connectivity of brain areas related to changes in behavior, friendships, and social skills. Results indicated that changes in connectivity were also linked to increased social skills. Autism Res 2021, 14: 787–803. © 2021 International Society for Autism Research and Wiley Periodicals LLC
Probing the interactions of novel europium coordination complexes with serum albumin
Authors: Trusova Valeriya M. , Tarabara Uliana K. , Zhytniakivska Olga A. , Vus Kateryna O. , Gorbenko Galyna P. 
Published: January 2021

AbstractMolecular interactions between novel europium coordination complexes (EC) possessing superior cytotoxic activity and bovine serum albumin (BSA), the most prominent representative of plasma proteins, were assessed using fluorescence spectroscopy and molecular docking techniques. Cumulative results from fluorescent probe binding, fluorescence quenching and Förster resonance energy transfer studies revealed that the europium complexes V4 and V8 do not perturb the BSA structure, while V3, V5, and V7 induce partial unfolding of the polypeptide chain. Molecular docking studies coupled with analysis of the three‐dimensional structure of the BSA–EC complexes showed that V4 and V8 reside in the vicinity of the protein IIA subdomain (Sudlow's site I), while V3, V5 and V5 were localized predominantly in the BSA IIIA subdomain (Sudlow's site II). Due to the intactness of the protein structure upon association with V4 and V8, these compounds may be recommended for further evaluation as potential antineoplastic agents.
Efficient method for constructing optimized long binary spreading sequences
Authors: Boukerma Sabrina , Rouabah Khaled , Mezaache SalahEddine , Atia Salim 
Published: January 2021

SummaryIn this paper, we propose an efficient method for generating two types of novel optimized long binary spreading sequences (OLBSS) with improved autocorrelation function (ACF) properties. The first type is constructed from concatenated short binary subsequences belonging to the same code family, such as Walsh Hadamard and Gold subsequences, provided that their cross‐correlation functions (CCFs) have good properties. The second category uses the same subsequences but which are rather interlaced. Here, the number and size of the subsequences are related to the chosen length of the final constructed long sequence and the desired performances. The realization of the OLBSSs is achieved using two different optimization techniques, namely, the genetic algorithms (GAs) and particle swarm optimization (PSO) method. The simulation results, based on MATLAB tool, have shown that the proposed long sequences, composed of Walsh–Hadamard subsequences and optimized by the GA, have better ACF properties compared to the original Gold, Weil, and random sequences of the same length.
Characterization of low‐acceleration, long‐duration horizontal events using a spring suspension straight delivery box truck
Authors: Dunno Kyle , Ge Changfeng 
Published: January 2021

AbstractA field measurement study, using a combination of controlled and uncontrolled phases, examined low‐acceleration, long‐duration events occurring during over‐the‐road truck transport. A field data recorder equipped with a DC‐based triaxial accelerometer was employed for this study to capture the steady‐state nature of these event types. The field data recorder was rigidly mounted to the trailer chassis to record lateral and longitudinal events of interest. The controlled phase recorded normal and aggressive braking events and traversing a roundabout to fundamentally quantify the behaviour of the vehicle. For the controlled phase, average decelerations of 0.27 and 0.45 g were reported for normal and aggressive braking events, respectively. Lateral accelerations from traversing a roundabout were on average 0.40 g. The uncontrolled field measurement study, which evaluated the transport vehicle over 13 days, reported average longitudinal decelerations and lateral accelerations of 0.29 and 0.34 g, respectively. The rise times associated with these events were also reported. The jerk was calculated based on the rise times for the controlled and uncontrolled phases and compared to currently available test procedures. For both project phases, composite test profiles were developed based on field‐measured levels. The resulting composite test profiles can be utilized to evaluate the load stability of a unit load system travelling through this distribution channel.