bluuebunny/crossref_metadata_2025 huggingface dataset:
WCZESNOŚREDNIOWIECZNY SZKLANY PACIOR Z KRUSZWICY
Authors: Sawicka Joanna
Published: November 2021

In the gord in Kruszwica, on the settlement level from the 4th quarter of the 11th century, a piece of a large bead was discovered. It was made of black and purple glass, decorated with a set glass thread and small buttons with the (floral) millefiori ornament. It was made of glass, the “ash” variety of the Na2O-K2O-CaO-MgO-Al2O3-SiO2 type (the grains) and the Na2O-K2O-CaO-MgO-Al2O3-PbO-SiO2 type (the ornament). An interpretation of the results of an analysis of the chemical content of the glass (XRF, X-Ray Fluorescence) has allowed to define the probable place of the glass production, as well as the form and type of this rare specimen, namely the Middle East (probably Byzantine) workshops.
NOŻE WOLUTOWE – O FUNKCJI I POCHODZENIU ZAGADKOWYCH PRZEDMIOTÓW W KULTURZE SŁOWIAŃSKIEJ
Authors: Pawlicki Jakub Karol
Published: November 2021

The text presents spiral knives, objects of clearly exceptional nature. The data, the map and table included here are meant to update information on the subject after 32 years. Identification of the specific regional groups and a metric analysis of the historical objects highlight the differences between the groups. The text also touches upon objects which are morphologically close to the spiral knives used by nomadic communities. A critical look at the theories in literature on the subject allowed to limit the functions to two, possibly mutually complementary.
PALĄ SIEBIE W OGNIU, GDY UMRZE IM KRÓL LUB WÓDZ – I PALĄ RÓWNIEŻ JEGO WIERZCHOWCE. WCZESNOŚREDNIOWIECZNY POCHÓWEK CIAŁOPALNY ZE SZCZĄTKAMI KONIA Z CHODLIKA, POW. OPOLSKI, WOJ. LUBELSKIE
Authors: MIECHOWICZ ŁUKASZ
Published: November 2021

The article presents the results of research into an early medieval kurgan in Chodlik, Karczmiska county, where cremated human and horse remains were discovered. The settlement complex in Chodlik (8th-10th c.) forms a vast hillfort of more than 8 ha and the surrounding hamlets. For over a century, it has been subjected to archaeological excavations but it was not until recently that the related cremation burial sites were identified. The first kurgan, examined in 2010, contained buried remains of a human and a horse, most probably buried at a stake together. The other objects found in the upper part of the kurgan included pieces of clay vessels and bronze elements of a horse tack. By means of radiocarbon dating, the burial site’s chronology has been established as the 8th-9th centuries. The text presents comparative analyses with other famous discoveries of the type and considerations of the importance of horses to the early medieval Slavs.
Parainfectious Anti-Glial Fibrillary Acidic Protein-Associated Meningoencephalitis
Authors: Joo Jae Young , Yoo Dallah , Ahn Tae-Beom
Published: November 2021

Movement disorders associated with glial fibrillary acidic protein (GFAP) autoantibodies have rarely been reported as ataxia or tremors. A 32-year-old man with headache and fever, initially diagnosed with viral meningoencephalitis, showed gradual improvement with empirical treatment. Two weeks after the illness, he suddenly developed orofacial, tongue, and neck dyskinesia accompanied by oculomotor abnormalities, which developed into severe generalized choreoballism. Brain magnetic resonance imaging (fluid-attenuated inversion recovery) showed signal hyperintensities in the bilateral globus pallidus interna. The clinical picture suggested an acute inflammatory trigger of secondary autoimmune encephalitis. The autoimmune antibody test was positive for GFAP, with the strongest reactivity in the cerebrospinal fluid (CSF) before treatment and decreased reactivity in serial CSF examinations during immunotherapy. Dyskinesia gradually improved to the extent that it could be controlled with only oral medications. This patient presented with parainfectious GFAP meningoencephalitis with distinctive clinical features and imaging findings.
A sociosemiotic interpretation of cultural heritage in UNESCO legal instruments: a corpus-based study
Authors: Bouvier Gwen , Wu Zhonghua
Published: November 2021

The past few decades have seen a plethora of interest in heritage studies in international law, as the legitimization of cultural heritage is a significant aspect of protecting the legacy of humanity’s collective memory, which is fully reflected in a series of international instruments on culture. This paper examines the meaning-making process of UNESCO legal documents on cultural heritage from a sociosemiotic perspective. The data for the corpus-based study were analyzed quantitatively and qualitatively by applying the securitization theory to heritage studies. Research findings reveal three significant shifts in cultural heritage, i.e., from property to heritage, from tangible to intangible, and from material-centered to human-centered, which embodies the harmonious coexistence of humanity and nature, a philosophical idea embedded in traditional Chinese culture. As noted, terms targeting cultural heritage in UNESCO international instruments are the sign vehicle, generally mediated and shaped by social values, cultural beliefs, and conventional wisdom, etc. as a part of the interpretant, making different categories of heritage meaningful and interpretable. Characterized by temporality and spatiality, cultural heritage is subject to multiple interpretations. The meaning-making of international instruments for consideration is a sociosemiotic operation that can be construed through contextual factors and a process of social negotiation. This paper argues that a sociosemiotic approach to heritage studies is conducive to explicating the construction and deconstruction of heritage as discursive practices while offering some implications for future research.
Csapadékszélsőségek változása Európa déli alföldi régióiban az 1951–2019 időszakban
Authors:   ELTE, Földtudományi Doktori Iskola, Berényi Alexandra , Pongrácz Rita ,   ELTE, Földrajz- és Földtudományi Intézet, Meteorológiai Tanszék, Bartholy Judit ,   ELTE, Földrajz- és Földtudományi Intézet, Meteorológiai Tanszék
Published: November 2021

The aim of our study is to analyse the spatial patterns and temporal trends of average and extreme precipitation events in a few selected plain regions between 1951 and 2019. Besides the Great Hungarian Plain we chose two plain regions located in the southern part of the continent (i.e. the Po Valley and the Romanian Plain) with the purpose of comparing similar geographical regions, and creating a scientific basis to comprehensively analyse the effects of climate change on economy, society, and nature. For choosing the plains, objective criteria were used, namely, (i) the elevation remains under 200 m throughout the defined area, and (ii) the difference between the neighbouring grid points within the plain region does not exceed 50 m. The analysis of extreme precipitation events was performed for annual periods by calculating 17 climate indices. Based on our research of the past, there is a clear increase in the frequency and intensity of extreme precipitation events, in the length of dry periods as well as in the occurrence of extreme weather events.
Design and validation of an evaluation instrument that assesses the pro-environmental behavior of Mexican university students
Authors: Saldaña Almazán Mirella , Carrasco-Urrutia Katya Aimeé , Sampedro-Rosas María Laura , Rosas-Acevedo José Luis , Juárez-López Ana Laura
Published: November 2021

The purpose of this research was to design and validate a research instrument that delimits the degree of proenvironmental behavior (CPA). For the design and validation, the instrument was subjected to a review with specialists in the area. Subsequently, it was applied to the student community of the Autonomous University of Guerrero (UAGro). To define the adequacy and reliability of the items, along with their comprehension, was applied to a pilot group of 76 students. During the first review, the research instrument was approved by 15 experts, who also made suggestions. The reviewers endorsed the validity of the items’ content, and an optimum reliability score was obtained (Cronbach's alpha: 0.778). It is concluded that the evaluation instrument is valid in content, reliable, and accessible to monitor and evaluate the pro-environmental behavior in students.
BK-Channels: Simulador de corriente macroscópica (IBK) para la investigación y la enseñanza-aprendizaje
Authors: Reyes Monreal Marleni , Pérez Bonilla María Eugenia , Quintero Pérez Jessica , Pérez Escalera Miguel Felipe , Reyes Lazalde Arturo
Published: November 2021

Las prácticas de laboratorio virtuales adquieren relevancia en tiempos de pandemia. En este estudio se presenta un simulador de los canales de K+ de alta conductancia (BK) con fines de investigación y de enseñanza-aprendizaje. Estos canales están relacionados con epilepsia e hipertensión arterial. El simulador está basado en el modelo matemático de Gupta y Manchanda, y se implementó en Visual Basic 6.0 para ambiente Windows®. El simulador reproduce los datos experimentales publicados de la cinética de la corriente macroscópica BK de canales transfectados en diferentes células. Los datos simulados y los experimentales no presentaron diferencias (p > 0.05). Con el simulador se pueden realizar experimentos virtuales; determinar parámetros como la sensibilidad al Ca2+ (ΔV1/2), la dependencia de Ca2+ interno y de voltaje; y reproducir la relación conductancia-voltaje (G-V). El simulador es ejecutable en cualquier computadora con recursos mínimos y puede ser utilizado como herramienta didáctica en cursos presenciales y a distancia.
Anterior–Posterior Hippocampal Dynamics Support Working Memory Processing
Authors: Li Jin , Cao Dan , Dimakopoulos Vasileios , Shi Weiyang , Yu Shan , Fan Lingzhong , Stieglitz Lennart , Imbach Lukas , Sarnthein Johannes , Jiang Tianzi
Published: November 2021

The hippocampus is a locus of working memory (WM) with anterior and posterior subregions that differ in their transcriptional and external connectivity patterns. However, the involvement and functional connections between these subregions in WM processing are poorly understood. To address these issues, we recorded intracranial EEG from the anterior and the posterior hippocampi in humans (seven females and seven males) who maintained a set of letters in their WM. We found that WM maintenance was accompanied by elevated low-frequency activity in both the anterior and posterior hippocampus and by increased theta/alpha band (3–12 Hz) phase synchronization between anterior and posterior subregions. Cross-frequency and Granger prediction analyses consistently showed that the correct WM trials were associated with theta/alpha band-coordinated unidirectional influence from the posterior to the anterior hippocampus. In contrast, WM errors were associated with bidirectional interactions between the anterior and posterior hippocampus. These findings imply that theta/alpha band synchrony within the hippocampus may support successful WM via a posterior to anterior influence. A combination of intracranial recording and a fine-grained atlas may be of value in understanding the neural mechanisms of WM processing.

SIGNIFICANCE STATEMENTWorking memory (WM) is crucial to everyday functioning. The hippocampus has been proposed to be a subcortical node involved in WM processes. Previous studies have suggested that the anterior and posterior hippocampi differ in their external connectivity patterns and gene expression. However, it remains unknown whether and how human hippocampal subregions are recruited and coordinated during WM tasks. Here, by recording intracranial electroencephalography simultaneously from both hippocampal subregions, we found enhanced power in both areas and increased phase synchronization between them. Furthermore, correct WM trials were associated with a unidirectional influence from the posterior to the anterior hippocampus, whereas error trials were correlated with bidirectional interactions. These findings indicate a long-axis specialization in the human hippocampus during WM processing.
As Oil Is Waning, the Times Are Changing
Authors: Dunne Michele
Published: November 2021

With the future of fossil fuels looking bleak, resource-dependent regional powers are competing for other means of securing their positions. While some are striking new alliances—even with Israel— they are also redoubling efforts to stamp out democratic voices at home and abroad.
Sobre los momentos inicial y final de la tentativa
Authors: Gili Pascual Antoni
Published: November 2021

Este trabajo se ocupa de dos cuestiones que atañen a sendos límites, inferior y superior, de la tentativa. En relación con el primero, se analiza como cuestión específica el inicio de ejecución en las tentativas acabadas, examinando para ello los posicionamientos que han defendido el establecimiento en estos supuestos de un criterio propio y distinto del utilizado para las tentativas inacabadas. En el segundo ámbito, el trabajo concreta el concepto de tentativa terminada y clarifica qué pertenece en realidad al mismo intento punible, precisando de este modo hasta cuándo se puede desistir válidamente de él. Las aportaciones contenidas en el estudio interesan, pues, tanto a la habilitación o apertura de la posibilidad de desistir como a su preclusión o cierre.
Alfabetización en salud en el sistema sanitario: objetivos y posibles actuaciones
Authors: Navarro Mª Dolores
Published: November 2021

El nivel de alfabetización en salud de los pacientes se ha convertido en un tema clave para los profesionales y las organizaciones sanitarias, ya que les permite valorar las habilidades y competencias de los pacientes al utilizar la información sobre su propia enfermedad y sobre cómo pueden actuar en su abordaje y manejo. Numerosos estudios han mostrado cómo las personas que presentan un bajo nivel de alfabetización sanitaria pueden tener dificultades para entender las indicaciones de los profesionales sanitarios y presentan un peor estado de salud y calidad de vida.

Se ha de preparar a los propios profesionales en estos aspectos de alfabetización en salud que les permita mejorar sus habilidades comunicativas y empáticas a la hora de comunicarse con pacientes y familiares. Los profesionales sanitarios han de ser conscientes de que su manera de comunicar y de dirigirse a los pacientes influirá en cómo éstos pueden responder ante su situación, en cuanto a su autocuidado y abordaje de la enfermedad o respecto al seguimiento de las recomendaciones o cumplimiento terapéutico. De la misma forma, es necesario un enfoque estratégico de la propia institución. Así pues, la dirección del centro sanitario debe contemplar también la incorporación del paciente en la toma de decisiones.

La alfabetización en salud de los pacientes, por lo tanto, mejorará mucho más si este abordaje se realiza de una manera integral, teniendo en cuenta a los pacientes y familiares, pero también considerando las habilidades comunicativas de los profesionales y las directrices de la organización. Además, para que las intervenciones en la mejora del nivel de alfabetización sanitaria de la población sean efectivas, las administraciones, los sistemas sanitarios en su globalidad, han de incorporar entre sus directrices, elementos que favorezcan la implementación de dichas acciones.
La gestión público-privada en la red de destinos de los Itinerarios Culturales del Consejo de Europa: la Ruta del Emperador Carlos V
Authors: Moreno Lobato Ana , Hernández-Mogollón José Manuel , Di-Clemente Elide
Published: November 2021

Los Itinerarios Culturales del Consejo de Europa suponen una certificación a rutas culturales cuyo patrimonio implica un recurso de relevancia turística en diversos destinos. Esta singularidad implica una gestión en red basada en la cooperación y la colaboración de diferentes localidades para su desarrollo. Mediante el estudio de fuentes secundarias, se analiza la proporción público-privada de la Red del Emperador Carlos V como reflejo de la capacidad de promoción de los destinos integrantes. Los resultados muestran una escasa implicación del ámbito privado en comparación con los entes institucionales, lo que supone un menor impacto positivo en la población en el ámbito empresarial y en el desarrollo económico como consecuenciade la certificación europea.
El Camino de Santiago y el Xacobeo como fenómenos polisémicos: reflexiones a través del estudio de su imagen mediática
Authors: Caamaño-Franco Iria , Andrade-Suárez María
Published: November 2021

Este trabajo analiza la construcción de la imagen del Camino de Santiago y del Xacobeo, a partir del examen de su cobertura mediática en la prensa nacional, con el objetivo de comprobar si se pone de manifiesto en esta imagen proyectada su carácter polisémico, es decir, la pluralidad y riqueza de significados, valores y funciones como resultado de la convivencia de las múltiples dimensiones que convergen en este espacio. Con esta finalidad se efectúa, a través de la hemeroteca My News, un análisis cuantitativo y cualitativo de los textos periodísticos publicados entre los años 2000 y 2019, considerando diversas variables como son la frecuencia global de los términos “Camino de Santiago” y “Xacobeo”, la sección en la que se localiza la información, el género discursivo utilizado, el ámbito geográfico objeto de atención, las principales palabras clave o las dimensiones temáticas más frecuentes, entre otras. El análisis de los nuevos escenarios mediáticos en los que la prensa española sitúa al Camino de Santiago y el Xacobeo ponen de manifiesto, fundamentalmente, su dimensión cultural y turística. Se descubre, así, la proyección de una imagen pública que es, en este sentido, parcial y selectiva. Estos hallazgos presentan importantes implicaciones para las estrategias de comunicación y el posicionamiento de esta ruta de peregrinación.
Los Los impactos socioeconómicos del Camino Primitivo en Asturias: percepciones de los residentes
Authors: Magadán Díaz Marta , Rivas García Jesús I.
Published: November 2021

El objetivo general de esta investigación es realizar una evaluación de los impactos económicos y sociales sobre las localidades asturianas por las que transcurre el Camino Primitivo. Para ello se desarrolla un análisis descriptivo de datos cuantitativos primarios a partir de entrevistas telefónicas en dos de las cinco localidades consideradas en este estudio y seleccionadas partiendo de un análisis previo de datos cuantitativos secundarios. Los resultados obtenidos muestran que el impacto económico y social derivado del Camino Primitivo fue considerado positivo entre los participantes. La presencia de peregrinos tuvo buena acogida al ser percibidos como visitantes educados, amables e interesantes por la novedad que aportan a la vidalocal. El efecto del Camino Primitivo sobre la conciencia de la riqueza patrimonial y sobre la tradición de las localidades, así como el aumento de eventos culturales, también fueron aspectos valorados entre los participantes, quienes no detectaron impactos negativos significativos.
Caravaca de la Cruz y el Camino de Levante (Murcia): impactos sociales y económicos del primer itinerario espiritual y cultural del sudeste (SE) español, en fase de consolidación
Authors: Morales Yago Francisco Jose
Published: November 2021

El siglo XIII se considera la fecha inicial del surgimiento de Caravaca de la Cruz (Murcia) como lugar de peregrinaciones. Tras su nombramiento in perpetuum como ciudad jubilar en el año 1998, este enclave ha incrementado de forma exponencial el número de peregrinos y turistas, convirtiéndose en el primer itinerario espiritual y cultural del SE español. Las diversas iniciativas en la potenciación turística han fijado un proceso de valorización continuado con importantes fases de estancamiento en los años no jubilares. Por todo ello, se precisa una mayor consolidación y fijación de este producto turístico. Los indicadores y datos utilizados señalan, a través de la herramienta DAFO, una serie de acciones en áreas de mejora imprescindibles para la potenciación turística, que ayudarían a mejorar el desarrollo local, el nivel de bienestar, el aumento del empleo o la recuperación patrimonial en una ciudad y en una comarca que se encuentran por debajo de los indicadores socioeconómicos a nivel regional y estatal, pero con enormes potencialidades como espacio atractivo para el turismo religioso, cultural y de naturaleza.
Evaluación de la competitividad internacional en el contexto global actual: un análisis input-output para el sector industrial
Authors: Vázquez López Raúl
Published: November 2021

Este artículo estudia el desempeño comercial de los 12 principales países exportadores de bienes industriales en el periodo 2004-2013, analizando tanto la pretendida asociación existente entre la productividad laboral y la competitividad externa, como el rol de las industrias altamente tecnológicas en el éxito exportador. La aplicación de la metodología de Wang, Wei, y Zhu (2018), a partir del uso de matrices insumo-producto globales, para el caso del comercio de E.U y China, muestra el mejor posicionamiento de E.U en CGV y ejemplifica la relevancia de las nuevas dinámicas productiva globales para la evaluación del comercio internacional a nivel sectorial.
Do Customers Regulate their Emotions? Development and Validation of a Model of Customer Emotional Labor
Authors: Imose Ruth A. , Rogers Arielle P. , Subramony Mahesh
Published: November 2021

Adopting an interdisciplinary perspective, this article integrates service literature on value cocreation with the psychological literature on emotional labor. Highlighting the co-production of services by both customers and employees, this research applies emotional labor theory to customers’ emotion regulation and expression. We explore the argument that customers perceive emotional display rules in service establishments and engage in goaldirected emotion regulation (i.e., customer emotional labor; CEL), using qualitative (Study 1) and quantitative (Study 2) methodologies. Descriptive findings from Study 1 provide evidence for the existence of CEL. Study 2 assesses the psychometric soundness of a newly developed customer display rules scale, and quantitatively tests a conceptual framework by examining antecedents and outcomes of customer emotion regulation. Findings of each study, the implications of this work, and avenues for future service management research are addressed.
Fault-tolerant Structures of Digital Devices Based on Boolean Complement with the Calculations Checking by Sum Codes
Authors:   Russian University of Transport, Moscow, Efanov D.V.
Published: November 2021

The article considers the construction of fault-tolerant digital devices and computing systems that does not use the principles of introducing modular redundancy. To correct the signals, a special distorted signal fixation unit, concurrent error-detection by the pre-selected redundant code circuit, as well as a signal correction block are used. The distorted signal fixation unit is implemented by the Boolean complement method, which makes it possible to design a large number of such blocks with different indicators of technical implementation complexity. When synthesizing a fault-tolerant device according to the proposed method, it is possible to organize a concurrent error-detection circuit for both the source device and the Boolean complement block in the structure of the distorted signal fixation unit. This makes it possible to choose among the variety of ways to implement fault-tolerant devices according to the proposed method, one that gives a device with the least structural redundancy. Various redundant codes can be used to organize concurrent error-detection circuits, including classical and modified sum codes. The author provides algorithms for the synthesis of distorted signal fixation unit and the Boolean complement block. The results of experimental researches with combinational benchmarks devices from the well-known LG’91 and MCNC Benchmarks sets are highlighted. The article presents the possibilities of the considered method for the organization of faulttolerant digital devices and computing systems.
The Impact of Environmental Tax Administration on the Cost of Thermal Energy on the Example of Organic and Biofuels Boilers in Ukraine
Authors:   Institute of General Energy of National Academy of Scieces of Ukraine, Stanytsina V.V. , Artemchuk V.O. ,   G.E. Pukhov Institute for Modelling in Energy Engineering National Academy of Sciences of Ukraine, Bogoslavska O.Yu. ,   G.E. Pukhov Institute for Modelling in Energy Engineering National Academy of Sciences of Ukraine
Published: November 2021

The article provides an overview of approaches to greenhouse gas emissions taxation and tax rates in European countries. To compare heated boilers with different characteristics, which run on different fuels the average cost of thermal energy for the life cycle LCOH was used. Environmental tax on environmental pollution (as a component of LCOH) is calculated for the three most common types of boilers in Ukrainian boilers with a capacity of 4.65 to 58 MW, burning natural gas, coal, and fuel oil, as well as for low-power boilers (0.5 and 1 MW ), burning fossil fuels and biofuels. The eco-tax for biofuel boilers is calculated under current taxation and subject to the adoption of a European approach to taxation of carbon dioxide emissions. It is established that at the current rates there are almost no economic incentives for the introduction of technologies to reduce the concentration of pollutants in emissions, but increasing the rates of environmental tax may change this situation. However, provided that rates are evenly increased for all types of boilers, the eco-tax for natural gas boilers will remain the lowest, while for biofuel boilers it will increase significantly, which contradicts the stated goal of decarbonizing the economy. It is shown that not only the change of environmental tax rates can be an effective tool for achieving the goals of sustainable development, as the principles of its administration are also important.
Mathematical Models of Main Units and Units of Automated Stabilization Instrument Complex
Authors:   National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic      Institute», Bezvesilna O.M. , Samoylov V.D. ,   G.E. Pukhov Institute for Modelling in Energy Engineering National Academy of Sciences of Ukraine, Ilchenko M.V. ,   Public Joint Stock Company "Research and Production Company "Kyiv Automation Plant"
Published: November 2021

This work presents the developed mathematical models of the main components and units that are part of the stabilizer: control panel, gyrotachometer GT46, position sensor, control unit, etc. Mathematical models of the armament unit and turret with gearbox and motor are obtained. A mathematical model of analog and digital control path of the horizontal guidance channel is obtained; vertical guidance channel; results of mathematical modeling of control modes: for vertical channel, for horizontal channel. Mathematical models have been developed, which are used in modeling the stabilizer control modes, as well as in the study of changes in the circuit-technical solution of the weapon stabilizer in order to increase its accuracy. The reliability of the obtained results was confirmed by the results of experimental testing.
INTERSTELLAR MEDIUM AND DECAMETER RADIO SPECTROSCOPY
Authors:   Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Stepkin S. V. , Konovalenko O. O. ,   Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Vasylkivskyi Y. V. ,   Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Mukha D. V. ,   Institute of Radio Astronomy, National Academy of Sciences of Ukraine
Published: November 2021

Purpose: The analytical review of the main results of research in the new direction of the low-frequency radio astronomy, the interstellar medium radio spectroscopy at decameter waves, which had led to astrophysical discovery, recording of the radio recombination lines in absorption for highly excited states of interstellar carbon atoms (more than 600). Design/methodology/approach: The UTR-2 world-largest broadband radio telescope of decameter waves optimally connected with the digital correlation spectrum analyzers has been used. Continuous modernization of antenna system and devices allowed increasing the analysis band from 100 kHzto 24 MHz and a number of channels from 32 to 8192. The radio telescope and receiving equipment with appropriate software allowed to have a long efficient integration time enough for a large line series simultaneously with high resolution, noise immunity and relative sensitivity. Findings: A new type of interstellar spectral lines has been discovered and studied, the interstellar carbon radio recombination lines in absorption for the record high excited atoms with principal quantum numbers greater than 1000. The line parameters (intensity, shape, width, radial velocity) and their relation ship with the interstellar medium physical parameters have been determined. The temperature of line forming regions is about 100 K, the electron concentration up to 0.1 cm–3 and the size of a line forming region is about 10 pc. For the first time, radio recombination lines were observed in absorption. They have significant broadening and are amplified by the dielectronic-like recombination mechanism and are also the lowest frequency lines in atomic spectroscopy. Conclusions: The detected low-frequency carbon radio recombination lines and their observations have become a new highly effective tool for the cold partially ionized interstellar plasma diagnostics. Using them allows obtaining the information which is not available with the other astrophysical methods. For almost half a century of their research, a large amount of hardware-methodical and astrophysical results have been obtained including a record number of Galaxy objects, where there levant lines have been recorded. The domestic achievements have stimulated many theoretical and experimental studies in other countries, but the scientific achievements of Ukrainian scientists prove the best prospects for further development of this very important area of astronomical science. Key words: low-frequency radio astronomy; radio telescope; interstellar medium; radio recombination lines; carbon; hydrogen; spectral analyzer
A FABRY-PEROT METARESONATOR SUPPORTING TRAPPED-MODE RESONANCES
Authors:   Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Gribovsky A. V.
Published: November 2021

Purpose: Investigation of the electrodynamic properties of a Fabry-Perot metaresonator formed by two parallel perfectly conducting, two-dimensionally periodic, two-element screens of finite thickness with rectangular holes. The resonator is excited by a plane linearly polarized electromagnetic wave. The basic cell of each of the screens used as the metaresonator mirrors contains two lengths of rectangular waveguides of different transverse sections. Design/methodology/approach: An operator method for solving the 3D problems of electromagnetic wave diffraction by multielement two-dimensionally periodic structures is used in the study. The computation algorithm uses the partial domain technique and the method of generalized scattering matrices. Findings: As follows from the results of the numerical modeling made, the magnitude of the plane wave reflected from the metaresonator turns to zero at fixed frequencies lying below the cutoff frequencies for the rectangular waveguide sections embedded in the resonator mirrors. The effect of the total electromagnetic wave transmission through the metaresonator at the first lower frequency is characterized by a strong localization of the electromagnetic field in the resonator volume. The reason is excitation of the metaresonator by the exponentially descending field penetrating inside the resonator through the evanescent holes at the resonance frequency. The second low-frequency resonance of the total electromagnetic wave transmission through the metaresonator is associated with the trapped-mode resonance, which is observed in multielement two-dimensionally periodic structures. This case is characterized by a strong localization of the electromagnetic field from both sides near the metaresonator mirror surfaces. Conclusions: The unique electrodynamic properties of the metaresonator can find application in the devices for measuring the electrophysical parameters of composite materials with high losses. The effect of strong localization of the electromagnetic field both in the resonator volume and near the mirror surfaces can be used for monitoring the gaseous substances in crowded places. Key words: two-dimensionally periodic screen; rectangular waveguide; Fabry-Perot metaresonator; reflection factor; evanescent waveguide; trapped-mode resonance
PENGARUH WEB MODUL IPA TERINTEGRASI POTENSI LOKAL “EKOSISTEM PEGUNUNGAN DIENG” TERHADAP THINKING SKILL
Authors: Habellia Ray Cinthya , Suyanta Suyanta
Published: November 2021

THE EFFECT OF SCIENCE WEB MODUL INTEGRATED LOCAL POTENTIAL OF DIENG MOUNTAIN ECOSYSTEM TOWARD THINGKING SKILL Abstract21st-century learning requires learning media that can improve thinking skills, including understanding information, formulating alternative solutions and solving problems in the environment around students by utilizing the available information sources. This study aimed to identify the influence of the science web module integrated local potential "Dieng Mountain Ecosystem" to thinking skills. The method used in this study was quasi-experimental with a post control group design. The researcher used random cluster sampling to get two sample groups were 7C and 7E SMP N 1 Wonosobo. The data collection instruments used were essay tests based on the indicators of thinking skills. Data were processed using the Kruskal Wallis test and effect size. The study results showed that there were differences in thinking skills measurement results between the experimental and control classes. The science web science module has a high influence on thinking skills with an effect size of 0.9. AbstrakPembelajaran pada abad ini membutuhkan media pembelajaran yang dapat meningkatkan thinking skills meliputi kemampuan untuk memahami informasi, merumuskan alternatif pemecahan masalah dan menyelesaikan masalah yang ada di sekitar siswa dengan memanfaatkan sumber informasi yang tersedia. Tujuan penelitian adalah mengetahui pengaruh dari modul web IPA terintegrasi potensi lokal “Ekosistem Gunung Dieng” terhadap thinking skills. Metode yang digunakan dalam penelitian ini adalah penelitian quasi-experimental dengan post control group design. Peneliti menggunakan metode pengambilan sampel cluster random sampling untuk mendapatkan dua kelompok sampel yaitu kelas 7C dan 7E di SMP N 1 Wonosobo. Pengumpulan data thinking skills menggunakan tes uraian berdasarkan indikatornya. Data yang didapatkan diolah menggunakan uji Kruskal Wallis untuk menganalisis perbedaan hasil thinking skills pada kelas eksperimen dan kontrol. Pengaruh web modul IPA yang dikembangkan terhadap thingking skills diketahui melalui perhitungan effect size. Hasil penelitian menunjukkan bahwa terdapat perbedaan thinking skills antara kelas kontrol dan kelas eksperiman yang dipengaruhi oleh penggunaan web modul sains yang ditunjukkan dengan effect size sebesar 0,9.
β-Sitosterol Compound from Dichloromethane Extracts of Kalanchoe tomentosa (Crassulacea) Leaves and Inhibition of α-amilase Activity
Authors: Aisyah Lilis Siti , Yun Yenny Febriani , Puspita Firidia , Ilfani Adelia
Published: November 2021

Kalanchoe tomentosa is one of the plants of the Crassulaceae tribe that can lower blood sugar and contains compounds of terpenoids, flavonoids, alkaloids, saponins, tannins, fatty acids, steroids, and triterpenoids. This study aims to isolate and identify chemical compounds from dichloromethane extract of Kalanchoe tomentosa leaves, as well as to test the inhibitory activity of the α-amylase enzyme. Extraction was carried out by maceration using dichloromethane as a solvent, then dichloromethane extract was purified using column chromatography, the pure isolate  was obtained in the form of white powder, and an inhibition test was carried out against the α-amylase enzyme. The thin layer chromatography data of pure isolates compared to pure β-sitosterol are similar. Based on the research data, it can be concluded that the chemical structure of the pure isolate is β-sitosterol, the methylene chloride extract of K. tomentosa leaves has an inhibitory activity against the α-amylase enzyme with an inhibition value of 65%. This value is greater than the positive control of acarbose which only has 37% inhibition and β-sitosterol compound by 6.7%. This value is smaller when compared to the control of acarbose at the same concentration which obtained 5% inhibition.
An Investigation on the Influence of Modeling Approach and Load Pattern on Seismic Performance of RC Structures
Authors: Ravikumar C. M. , Ashwini L. K. , Keshavamurthy M. Keshava
Published: November 2021

Non-linear Static Analysis serves as a suitable measure to evaluate the performance of a structural system. The careful selection of modelling approach and the load pattern is critical to arrive at an adequate performance evaluation. The present study seeks to evaluate and compare the response of an existing eight story reinforced concrete structure, through the application of different modeling approaches and load patterns prescribed by FEMA 356. The results indicates that, with extreme clarity, that in all cases, the shape of the lateral load distribution is what the response of the buildings is finely accustomed to. This is especially true when different patterns of load are considered. It can also be observed that there is a very small difference between various load patterns.
Gestational Age and Neonatal Electrocardiograms
Authors: Hartmann Joachim , Pærregaard Maria Munk , Norsk Jakob , Pietersen Adrian , Iversen Kasper Karmark , Bundgaard Henning , Christensen Alex Hørby
Published: November 2021

OBJECTIVES

Interpretation of the neonatal electrocardiogram (ECG) is challenging due to the profound changes of the cardiovascular system in this period. We aimed to investigate the impact of gestational age (GA) on the neonatal ECG and create GA-specific reference values.

METHODS

The Copenhagen Baby Heart Study is a prospective general population study that offered cardiac evaluation of neonates. ECGs and echocardiograms were obtained and systematically analyzed. GA, weight, height, and other baseline variables were registered.

RESULTS

We included 16 462 neonates (52% boys) with normal echocardiograms. The median postnatal age was 11 days (range 0 to 30), and the median GA was 281 days (range 238 to 301). Analyzing the ECG parameters as a function of GA, we found an effect of GA on almost all investigated ECG parameters. The largest percentual effect of GA was on heart rate (HR; 147 vs 139 beats per minute), the QRS axis (103° vs 116°), and maximum R-wave amplitude in V1 (R-V1; 0.97 vs 1.19 mV) for GA ≤35 vs ≥42 weeks, respectively. Boys had longer PR and QRS intervals and a more right-shifted QRS axis within multiple GA intervals (all P < .01). The effect of GA generally persisted after multifactorial adjustment.

CONCLUSIONS

GA was associated with significant differences in multiple neonatal ECG parameters. The association generally persisted after multifactorial adjustment, indicating a direct effect of GA on the developing neonatal cardiac conduction system. For HR, the QRS axis, and R-V1, the use of GA-specific reference values may optimize clinical handling of neonates.
Molecular Characterization of Inflammatory Tumors Facilitates Initiation of Effective Therapy
Authors: Wachter Franziska , Al-Ibraheemi Alyaa , Trissal Maria C. , Hollowell Monica , DuBois Steven G. , Collins Natalie B. , Church Alanna J. , Janeway Katherine A.
Published: November 2021

Inflammatory myofibroblastic tumor (IMT) is a rare, mesenchymal tumor that has an increased incidence in childhood. Tumors are usually isolated to the chest, abdomen, and retroperitoneum, but metastatic presentations can be seen. Presenting symptoms are nonspecific and include fever, weight loss, pain, shortness of breath, and cough. Approximately 85% of IMTs harbor actionable kinase fusions. The diagnosis can be delayed because of overlapping features with inflammatory disorders, such as elevated inflammatory markers, increased immunoglobin G levels, fever, weight loss, and morphologic similarity with nonmalignant conditions. We present a girl aged 11 years with a TFG-ROS1 fusion–positive tumor of the lung that was initially diagnosed as an immunoglobin G4–related inflammatory pseudotumor. She underwent complete left-sided pneumonectomy and later recurred with widely metastatic disease. We then report the case of a boy aged 9 years with widely metastatic TFG-ROS1 fusion–positive IMT with rapid molecular diagnosis. In both children, there was an excellent response to oral targeted therapy. These cases reveal that rapid molecular testing of inflammatory tumors is not only important for diagnosis but also reveals therapeutic opportunities. Targeted inhibitors produce significant radiologic responses, enabling potentially curative treatment approaches for metastatic ROS1 fusion IMT with previously limited treatment options. Primary care pediatricians and pediatric subspecialists have a crucial role in the early consultation of a pediatric oncology center experienced in molecular diagnostics to facilitate a comprehensive evaluation for children with inflammatory tumors.
Antibiotic Use in Term and Near-Term Newborns
Authors: Mundal Håkon Stangeland , Rønnestad Arild , Klingenberg Claus , Stensvold Hans Jørgen , Størdal Ketil
Published: November 2021

OBJECTIVES

We aimed to study whether national and local antibiotic stewardship projects have reduced the antibiotic use in newborns and to monitor potential changes in adverse outcomes.

METHODS

In a nationwide, population-based study from Norway, we included all hospital live births from 34 weeks' gestation (n = 282 046) during 2015 to 2019. The primary outcome was the proportion of newborns treated with antibiotics from 0 to 28 days after birth. The secondary outcomes were the overall duration of antibiotic treatment and by categories: culture-positive sepsis, clinical sepsis, and no sepsis.

RESULTS

A total of 7365 (2.6%) newborns received intravenous antibiotics during the period, with a reduction from 3.1% in 2015 to 2.2% in 2019 (30% decrease; P < .001). Hospitals with antibiotic stewardship projects experienced the largest reduction (48% vs 23%; P < .001). We found a small decrease in the median duration of antibiotic treatment in newborns without sepsis from 2.93 to 2.66 days (P = .011), and geographical variation was reduced during the study period. The overall number of days with antibiotic treatments was reduced by 37% from 2015 to 2019 (119.1 of 1000 vs 75.6 of 1000; P < .001). Sepsis was confirmed by blood culture in 206 newborns (incidence rate: 0.73 cases per 1000 live births). We found no increase in sepsis with treatment onset >72 hours of life, and sepsis-attributable deaths remained at a low level.

CONCLUSIONS

During the study period, a substantial decrease in the proportion of newborns treated with antibiotics was observed together with a decline in treatment duration for newborns without culture-positive sepsis.
ECONOMIC ASYMMETRIES OF PRODUCTION IN THE AGRICULTURAL SECTOR
Authors: Blazheva V.
Published: November 2021

The development of efficient and sustainable agriculture requires its permanent transformation. In this aspect, various methods of growing plants and breeding animals are applied to optimize production. These methods are distinguished mainly as: traditional (conventional) production, organic production, production of genetically modified organisms. From this standpoint, attention is drawn to: covering the widest possible range of terms used to characterize the variety of plant growing and animal breeding methods; a brief overview of the established in theory and practice modern methods of plant growing and animal breeding; delimiting the notion of biological – as a vital process, regardless of the plants and animals production technology (including the use of organic fertilizers; preparations containing live bacteria; treated seeds with live bacteria, etc.).The methods of the present study are scientific research methods: induction and deduction method, retrospective analysis and others; illustrative methods - schemes, figures and others. Regarding the expected results, this article focuses on highlighting the social, economic and environmental aspects of production of plant and animal products. Production in the agricultural sector must be aimed at recovery of residues and waste from crop and livestock production in harmony with the environment.
OPPORTUNITIES FOR FINANCING THE SUSTAINABLE DEVELOPMENT OF THE PRODUCTION OF ORGANIC GRAPES AND ORGANIC WINE THROUGH THE RATIONAL USE OF EU STRUCTURAL FUNDS AND FUNDS FROM THE NATIONAL PROGRAM FOR DEVELOPMENT OF THE WINE SECTOR
Authors: Miteva A.
Published: November 2021

Over the last ten years, there has been a global steady increase in the production and consumption of organic products, in particular wines produced from certified organic raw materials. The purpose of this article is to present the regulatory framework for the production of organic grapes and organic wine and the possibilities for developing their production through the use of EU structural funds and funds from the National Program for the Development of the Wine Sector
Simulation of impact of organic and nutrient pollutants from Nghi Son economic zone on Thanh Hoa coastal waters, North Centre Vietnam
Authors: Nguyen Minh Hai , Vu Duy Vinh
Published: November 2021

Nghi Son is an economic zone oriented to developing heavy industry and petrochemicals and has potential to become the most substantial economic zone in the North Central region. The zone is also one of the potential waste sources polluting Thanh Hoa coastal waters. Numeric modeling using Delft3D software package with different scenarios: Current status scenario, controlled discharge scenario, and incident scenario was developed to simulate states of some pollutants of organics and nutrients from the zone to Thanh Hoa coastal waters in different periods. The simulation results show that under controlled discharge (increasing pollutant concentration with the control of waste discharge), the concentration of pollutants was increasing and high around discharging points. In contrast, in incident case from the zone, pollutant concentrations increase markedly both in the magnitude and in the impact range to surrounding areas. When an accident happens, the influence scale will be expanded significantly, especially in the rainy season.