bluuebunny/crossref_metadata_2025 huggingface dataset:
ARRAKASTA programa: babes-sistematik ateratzen diren gazteek unibertsitate-ikasketak aukera-berdintasunean egiteko giltza
Authors: Miguelena Joana , Dávila Paulí , Naya Luisma , Garmendia Joxe
Published: December 2021

Hamabost urtetan bete beharreko Garapen Iraunkorreko Helburuak markatu dizkigu Garapen Iraunkorrerako 2030 Agendak; haietako bat, hezkuntza. Hezkuntzak guztiontzako eskubide bat izan behar du, kalitatezkoa, inklusiboa, bidezkoa eta etengabe ikaskuntzarako aukerak eskaintzen dituena. Artikulu honek hezkuntzari lotutako garapen iraunkorreko helburua azaltzen du; zehazki, helburu horren hirugarren erronkari helduko dio, hezkuntza-eskubidean eta goi mailako hezkuntzari dagokion aukera-berdintasunean sakonduz. Horretarako, UPV/EHUk arrakasta akademikoa lortzeko bultzatutako Arrakasta programa aitzindaria erabiliko dugu eredu gisa. Programa horrek haur eta nerabeen babeserako eta gizarte-inklusiorako sistemen barruan dauden gazteek unibertsitatean sartzeko eta goi mailako ikasketak arrakastaz bukatzeko aukera izateko baldintzak sortzen ditu. Artikulu honetan, programa hori martxan jartzeko prozesua, garapena eta bertan parte hartzen duten ikasleen pertzepzioak jasotzen dira. Parte-hartzaileen lehen pertzepzioek argi uzten dute beren goi mailako ikasketen «blindatzea» baino haratago doala programa; izan ere, itxaropenak sortzen ditu, babes-sisteman artatutako haur eta nerabeen eta agenteren ikuspegi, itxaropen eta zerumugak aldatzen ditu, eta, garrantzitsuena, hezkuntza inklusiboa eta aukera-berdintasuna bermatzen ditu.
The Chaine Operatoire of Bronze Age Mining: Tools From the Novotemirsky Copper Mine (Southern Trans-Urals)
Authors:   South Ural State Humanitarian Pedagogical University, I. Alaeva , I. Molchanov ,   Institute of History and Archaeology, Ural Branch of the Russian Academy of Sciences, A. Fomichev ,   Orsk Humanitarian-Technological Institute (branch) of Orenburg State University, M. Ankushev ,   South Urals Federal Research Center of Mineralogy and Geoecology, Ural Branch of the Russian Academy of Sciences, P. Ankusheva ,   South Urals Federal Research Center of Mineralogy and Geoecology, Ural Branch of the Russian Academy of Sciences,   South Ural State Humanitarian Pedagogical University
Published: December 2021

The paper is devoted to the problem of the development level and organization models of mining within the Eurasian metallurgical province of the Late Bronze Age in the 2nd millennium BC. The main research aim is to determine the chain of technological processes taking place at the Novotemirsky ancient mine in the Southern Trans-Urals. The sources of raw materials, traces of use, and functional identification of stone (n=58) and bone tools (n=1) were determined using traceological, petrographic, X-ray fluorescence, and X-ray diffraction analysis. All tools were divided into three groups depending on their use: mining (a casting mould for a pick), ore crushing (hammers, small hammers), supporting devices (“bases”, counterweights for lifting ore). The absence of mining and processing (grinding pestles, grinding stones) and metal-working (blacksmith hammers) tools at the Novotemirsky mine indicates a narrow range of technical operations associated only with direct mining of copper ore and ore-preparing (crushing large blocks). It is assumed that there is a partial specialization of mining, which consists in the formation of temporary miners’ collectives, who are seasonally involved in these operations. Keywords: stone tools, ancient mine, Late Bronze Age, Southern Trans-Urals, Alakul culture, traceological analysis, X-ray fluorescence analysis, X-ray diffraction analysis
Pinchuga-6 Burial Ground — a New Site of the Finale of the Iron Age in the Lower Angara Region
Authors:   Siberian Federal University, P. Mandryka , P. Senotrusova ,   Siberian Federal University, A. Dedik ,   Siberian Federal University
Published: December 2021

The article presents the preliminary results of studying of the Pinchuga-6 burial ground in the Lower Angara region. This site is the first large necropolis of the late Iron Age to be explored in the region. 16 cremated burials on the side were recorded at the necropolis. Eventually 30 individuals of different ages were identified. The research revealed single children’s and adults’ burials, collective and paired complexes. In the collective complexes the remains of three or five people are buried. Based on the results the main features of the funeral ceremony were identified. Among the finds from the burial ground and the inter-burial ground space are weapons, tools, ceramic vessels, objects of Western Siberian cult casting and adornments. According to the analogy, the burial ground dates back to the second quarter of the 1st millennium AD. In addition materials of the Tashtyk and Late Kulai guises have been collected at the site along with local elements of the Lower Angara region. Keywords: Lower Angara region, finale of the Iron Age, burial ground, burial ceremony, funeral equipment, ceramics, dating, cultural connection
Emergence of Microlithic Production in Mongolia: Research Terminology and Chronstratigraphic Position of Lithic Industries in Eastern and Southern Asia
Authors:   Institute of Archaeology and Ethnography SB RAS, A. Khatsenovich A. M., , E. Rybin E. P., ,   Institute of Archaeology and Ethnography SB RAS, G. Margad-Erdene ,   Novosibirsk State University, D. Bazargur D. ,   Institute of Archaeology MAS
Published: December 2021

Territory of Mongolia is situated in the center of Asia, a crossroad of the potential migration routes, that connect different Eurasian macroregions. Here an example of earliest appearance and longterm existence of small blade and microblade production has been found. Beyond that, the industries, that appeared within limited area of the Middle Selenga Basin in the late MIS3 — early MIS2, contained the earliest for Northern and Central Asia geometric and non-geometric microliths. They have been found in the sediments of Kharganyn Gol 5 and Tolbor-4, — 16 and –21. They end up in LGM — post- LGM which cause depopulation in the region and following changes in the human groups, occupying this territory. An understanding of the character, causes and specifics of such early appearance of the microblade and bladelet production, and especially geometric microliths, impose the arrangement and definition of the terminology, associated with microlithic assemblages in Asia. This is due to the fact that in the archaeological definitions of both processes and the desired forms of artifacts associated with the production and use of microliths, there are significant discrepancies that complicate the understanding of the described phenomena. The article provides an overview of the research terminology of microlithization processes, and also determines the position of the microlithic complexes of Mongolia in the Upper Paleolithic system of the eastern part of Asia. Keywords: Mongolia, East Asia, Upper Paleolithic, lithic industries, microlithic technology
The Economic Literacy Among the Chinese High School Students (part 1)
Authors: Wu Xintian , Wang Yanglita , Lu Tongzhong
Published: December 2021

In today's society, mankind is at a turning point in the context of the fourth industrial revolution and changes in new technologies and production models, which is raising a higher requirement for future labour. In this article, we look at the economic facets of basic education in China, since the mindset of young people is vital to developing a prosperous and better future civilization for mankind. The main topic of our paper is to analyze the economic literary level of the average high school students to assume how they can react and make a contribution to the coming fourth industrial revolution and the future civilization. The research relies on the materials of Chinese high school students’ actual textbooks related to the Fourth Industrial Revolution and Economics, and the book The Future of Humanity: Global Civilization and China's Rejuvenation by Professor Jin Zhouying. During the process of research, we found that, on the one hand, basic economics knowledge during the middle school period is helpful to students' daily life. On the other hand, some of the economics knowledge learned by middle school students cannot catch up with the trends and the texts are scattered in different subject textbooks. Therefore, due to innovative knowledge of youth, the relevant high school economics textbooks should be more keeping up with the times and provide more systematic and professional economic knowledge.
Resistência antimicrobiana na pneumonia adquirida na comunidade: revisão de literatura
Authors: Da Silva Carolina Henrique , Oliveira Rosimar Xavier de , Gomes Andréia Patrícia , Moreira Tiago Ricardo , Braga Luciene Muniz
Published: December 2021

A resistência antimicrobiana é um fator importante para a abordagem da Pneumonia Adquirida na Comunidade, uma das principais causas de morte por doenças infecciosas no mundo. A presente revisão de literatura objetiva analisar a resistência bacteriana relacionada aos principais antimicrobianos usados para o tratamento da Pneumonia Adquirida na Comunidade, na Atenção Primária à Saúde, no mundo e no Brasil. Foram realizadas pesquisas com oito associações composta por quatro dos seguintes descritores: “Pneumonia”, “Brazil”, “Family Health Strategy”, “Primary Health Care”, “Anti-Bacterial Agents”, “Drug Resistance, Bacterial”, “Drug Resistance, Microbial” e “Antimicrobial Stewardship”. As bases de dados utilizadas foram: Pubmed/Medline, Google Scholar, Literatura Latino-Americana e do Caribe em Ciências da Saúde (Lilacs), Portal de Periódicos Capes/MEC e Research Gate, considerando o período de maio a junho de 2020. Após a análise, dez estudos foram incluídos, com ausência de resultados concernentes ao Brasil. Os trabalhos obtidos referiram-se à resistência nos países europeus (sete), nos Estados Unidos (dois) e no Malawi (um). O Streptococcus pneumoniae apresentou-se como o patógeno bacteriano de maior prevalência nessa infecção. Os resultados sugerem a importância de se estabelecer diretrizes para o tratamento da Pneumonia Adquirida na Comunidade de acordo com o perfil epidemiológico de cada região. No Brasil, especificamente, as dificuldades no manejo dessa condição, realizado regularmente de forma empírica, podem ser explicadas pela ausência de estudos dirigidos a essa temática, tornando-se fundamental a realização de investigações da realidade brasileira.
Radiofrequency ablation of recurrent thyroid cancers: anatomy-based management
Authors: Lee Min Kyoung , Baek Jung Hwan , Chung Sae Rom , Choi Young Jun , Lee Jeong Hyun , Jung So Lyung
Published: December 2021

Although differentiated thyroid cancer has an excellent prognosis and low mortality, its recurrence rate has been reported to be very high. While surgery is recommended as the standard treatment for recurrent thyroid cancer, reoperation may increase the incidence of complications due to fibrosis and anatomical distortion. In patients with high surgical risk or those who refuse repeated surgery, ultrasonography-guided ablation techniques including radiofrequency ablation, ethanol ablation, and laser ablation are suggested as alternative treatments. In this manuscript, we introduce an anatomy-based management concept for radiofrequency ablation for recurrent thyroid cancer, and present a review of the relevant literature, including indications, basic techniques, clinical outcomes, and complications.
Anatomical classification of animal bone relics excavated from the well area of Gasan-ri in Jinju
Authors: Choi Jong-Hyuk , Lee Si-Joon , Kim Chong-Sup , Won Chungkil
Published: December 2021

The classification of the bone pieces excavated from Gasan-ri archaeological site Ⅰ in Jinju, presumed to be relics was investigated macroscopically. The remains of the animal bone were 3 classes (Mammalia, Aves, Amphibia), 5 orders (Carnivora, Artiodactyla, Passeriformes, Rodentia, Salientia), and 6 species (Sus scrofa, Cervidae sp., Nyctereutes procyonides, Passeriformes sp., Rattus norvegicus caraco, Rana nigromaculata). The total weight of the animal bone remains was 1,002.80 g, with the identified bones comprising 975.30 g and an identification rate of 97.26%. A total of 447 animal bone fragments were identified, including 204 bone pieces of S. scrofa (468.00 g, 47.99%), 102 bone pieces of Cervidae sp. (453.79 g, 46.53%), 68 bone pieces of R. nigromaculata (4.69 g, 0.48%), 59 bone pieces of N. procyonides (47.14 g, 4.83%), 9 bone pieces of Passeriformes sp. (0.98g, 0.10%), and 5 bone pieces of Rattus norvegicus caraco (0.70 g, 0.07%). The bone pieces of the animal relics consisted of 81 skull (18.12%), 161 axial skeleton (36.02%), 64 forelimb (14.32%), and 141 hindlimb (31.54%) fragments. The archaeological significance of the animal bones excavated in this investigation was that wild boars and deer were presumed to have been mainly used animals in the Gasan-ri area of Jinju during the Three Kingdoms period.
Efectividad de los procesos de esterilización por calor seco en consultorios podológicos de la ciudad de Santa Fe
Authors: Capdevila M. G.
Published: December 2021

La actividad podológica se desarrolla en un ámbito contaminado, por lo que es necesario mantener un estricto control de bioseguridad, haciendo énfasis en la esterilización y manipulación de material de trabajo. El objetivo de esta investigación fue evaluar la efectividad de los procesos de esterilización en los consultorios podológicos de la ciudad de Santa Fe, mediante un estudio observacional descriptivo de corte transversal; para el cual se implementaron controles químicos y biológicos en los equipos de esterilización por calor seco, además de una encuesta cerrada dirigida a los profesionales. Participaron del estudio 54 profesionales que llevaron a cabo el proceso de esterilización. En base a los resultados obtenidos, se observó que el 28% de los procesos controlados no cumplieron con los requisitos. El propósito de esta investigación es difundir los resultados en el ámbito profesional y académico con el fin de lograr una práctica podológica exitosa y confiable que proteja a los profesionales y a sus pacientes.
El '72 en Santa Fe: contienda política y un "azo" en la memoria
Authors: Raina Andrea Carla
Published: December 2021

En el marco del ciclo de protesta que se desplegó en Santa Fe entre los años 1969-1973, proponemos analizar las acciones de diferentes actores movilizados que hacia el año 1972  constituyeron episodios de contienda política (McAdam, Tarrow, Tilly, 2005). Bajo el prisma conceptual de la triada actores-acciones-identidades estudiaremos este momento histórico empleando una metodología cualitativa de análisis de fuentes escritas y orales. Contamos con el periódico local El Litoral, volantes y comunicados de organizaciones políticas y sindicales, entrevistas orales y testimonios provenientes de memoriales producidos en torno al aniversario de algunos de los hechos. Cronológicamente los acontecimientos que estudiamos van desde el intento de secuestro del intendente Conrado Puccio por Montoneros en febrero de 1972 y el impacto hacia el interior de la organización político-militar (OPM); la Lucha por el Medio Boleto llevado adelante por estudiantes secundarios y el paro activo realizado por trabajadores municipales nucleados en el gremio de ASOEM que provocó la destitución del intendente Conrado Puccio por un interventor policial -Francisco Sgabassi- y culminó en el recordado "Manzanazo" a fines de junio de 1972.
Organizaciones gremiales y acciones colectivas de los docentes en Santa Fe durante el tercer peronismo (1973-1976)
Authors: Andelique Marcelo , Tonón María Cecilia
Published: December 2021

Este trabajo se propone analizar a los trabajadores docentes entre 1973 y 1976, atendiendo especialmente a las organizaciones gremiales y a las acciones colectivas que se desarrollaron en la provincia de Santa Fe, durante el período en el que se configura a nivel nacional la Confederación de Trabajadores de la Educación de la República Argentina. Qué conflictos docentes se presentaron, cuáles fueron las razones de estos, cómo se llevaron adelante, cómo se organizaron, qué sindicatos docentes cobraron relevancia, son algunos de los interrogantes claves que guiaron la investigación. Se trata de un estudio cualitativo sobre la base de testimonios orales y documentos, particularmente, la prensa.
Las historias sobre Montoneros, entre el revisionismo conservador y el progresismo intelectual
Authors: Campos Esteban
Published: December 2021

El propósito de este trabajo es reflexionar sobre las narrativas históricas de divulgación que tienen como objeto a la guerrilla de Montoneros. El recorte incluye los libros Operación Primicia, de Ceferino Reato (Sudamericana, 2010), Montoneros. Soldados de Perón, ¿soldados de Massera?, de Carlos Manfroni (Sudamericana, 2012), y Perón y la Triple A. Las 20 advertencias a Montoneros, de Sergio Bufano (Sudamericana, 2015). La ponencia contextualiza las obras en el tránsito del régimen de memoria de los gobiernos kirchneristas, a una puja entre relatos del pasado reciente signada por el revisionismo conservador, que generó las condiciones para la irrupción del discurso negacionista. En segundo lugar, el texto plantea reconstruir los núcleos de sentido sobre la Argentina de los 70, con el objetivo de reflexionar sobre la producción de sentido común histórico alrededor de Montoneros.
Reseña de González Canosa, Mora. Los futuros del pasado. Marxismo, peronismo y revolución: una historia de las FAR
Authors: Gil Germán Roberto
Published: December 2021

La investigación realizada por Mora González Canosa permite rescatar la singularidad de la trayectoria de las FAR, su particular estilo de peronización y la articulación de una estrategia discursiva que le permitió cubrir en un tiempo sorprendentemente corto una trayectoria iniciada en el foquismo y que culmina con la fusión con la visión más movimientista de Montoneros, sin abandonar una mirada orientada desde el marxismo.
La pandemia del COVID-19 como crisis urbana
Authors: González-Escalada Mena Pelayo
Published: December 2021

La crisis del COVID-19 es eminentemente una crisis urbana. El enorme impacto socioeconómico de la pandemia se concentra en las ciudades y ya ha traído importantes cambios en su funcionamiento y en el estilo de vida de sus habitantes. En este contexto, algunos expertos destacan las vulnerabilidades inherentes de las ciudades y su papel en la expansión del virus y pronostican una transformación radical —e incluso un declive— de las mismas. Para otros, ahora más que nunca, el futuro de la humanidad será urbano y esta crisis servirá para fortalecer la resiliencia de las ciudades de cara a futuras amenazas. Reconociendo la importancia que tendrá esta crisis en el futuro urbano y del planeta, el presente artículo realiza un repaso por los impactos de la pandemia en las ciudades y la respuesta institucional, analiza los elementos clave de esta crisis para el futuro de las ciudades y presenta la oportunidad de aprovechar el contexto actual para impulsar una diplomacia urbana efectiva.
Pengaruh Penerapan Instruksi Kerja Alat Terhadap Keterampilan Penggunaan Alat Di Laboratorium Fakultas Tarbiyah Dan Keguruan Uin Sunan Ampel Surabaya
Authors: Wulandari Reni
Published: December 2021

Permendikti No. 44 of 2015 explicitly states that college graduates must exceed knowledge achievements, general skills and special skills and attitudes. This study intends to find out how the application of work instruction tools in the laboratory, student skills in the laboratory and the effect of the application of tool work instructions on the skills of using the tools in the laboratory.The instrument used was in the form of an observation sheet with as many as 7 items of assessment with reliability = 0.615, the instruments of pre-test and post-test had been tested for validity.The results of the data analysis showed that students rarely applied tool work instructions when implementing practicum with a percentage of 56.52%, unskilled students in the use of tools with a percentage of 45.65%. Followed by data analysis for the influence of the application of tool work instructions on the skill use of tools in the laboratory. The z value was obtained at 5.769 and which was greater than the critical value z (1,645). This shows that there is the influence of the application of tool work instructions on the skillful use of laboratory equipment in the Tarbiyah Faculty and Sunan Ampel UIN Surabaya Teacher Training
Pengolahan dan Pemanfaatan Limpahan Air Sungai Sahang sebagai Air Bersih Untuk Keperluan Laboratorium Teknik Kimia Jurusan Teknik Kimia Politeknik Negeri Sriwijaya
Authors: Bustomi Ahmad
Published: December 2021

Clean water is the primary need of living things because water plays an important role in the process of life. The quality of raw water from various sources has different quality and quantity characteristics, which means that not all regions have a clean water supply that can be processed into water suitable for consumption in accordance with clean water standards that meet clean water requirements. Therefore, in processing and utilizing overflow of Sahang River water, the WTP (Water Treatment Plant) system is to remove metals, organic substances and bacteria in accordance with clean water quality standards of the Ministry of Health of the Republic of Indonesia. The stages in the processing and utilization of the Sahang River water overflow are preliminary analysis of samples in the intake, sedimentation and reservoir tanks. Then to ensure the results of processing and utilization of the Sahang river water overflow, we took a comparative sample, namely PDAM Tirta Musi Palembang water. Analysis of physical, chemical and biological parameters. In the analysis test, the physical parameters of clean water include temperature, color, turbidity, dissolved solids (TDS), smell and taste. In the analysis of clean water chemical parameters, including pH, hardness, chloride, organic substances, ammonia, sulfate, nitrite, nitrate, chromium, cadmium, iron, manganese, copper, aluminum, zinc and lead. Meanwhile, the biological parameter analysis test includes the analysis of E-Coli bacteria. The results of the water quality analysis test for WTP (Water Treatment Plant) have been proven to comply with SNI quality standards for clean water with the optimum results obtained in the addition of a coagulant with a concentration of 75 ppm. However, there are parameters that have decreased and increased levels in each type of parameter such as parameters Turbidity (4.27 NTU), pH (7.01), TDS (24.1 ppm), NaCl (49.7 ppm), DO ( 6.95 ppm), Conducto (1.6211 µs) and hardness (13.29 ppm), but it is still within the standard of clean water quality, which means that the Water Treatment Plant (WTP) system is proven to be implemented especially for water purposes. Laboratory of the Department of Chemical Engineering, State Polytechnic of Sriwijaya and generally for the needs of the community at an economical price and good quality
Inverse modeling of the stewart foot
Authors: Comanescu Adriana , Rotaru Alexandra , Ungureanu Liviu Marian , Petrescu Florian Ion Tiberiu
Published: December 2021

The Stewart's leg is used today in the majority of parallel robotic systems, such as the Stewart platform, but also in many other types of mechanisms and kinematic chains, in order to operate them or to transmit motion. A special character in the study of robots is the study of inverse kinematics, with the help of which the map of the motor kinematic parameters necessary to obtain the trajectories imposed on the effector can be made. For this reason, in the proposed mechanism, we will present reverse kinematic modeling in this paper. The kinematic output parameters, ie the parameters of the foot and practically of the end effector, ie those of the point marked with T, will be determined for initiating the working algorithm with the help of logical functions, "If log(ical)", with the observation that here they play the role of input parameters; it is positioned as already specified in the inverse kinematics when the output is considered as input and the input as output. The logical functions used, as well as the entire calculation program used, were written in Math Cad.
CNT@PDMS/NW composite materials with superior electromagnetic shielding
Authors: Zhou Zi-Jing , Wang Zhen-Xing , Han Xiao-shuai , Pu Jun-Wen
Published: December 2021

Lightweight materials with high electrical conductivity and hydrophobic mechanical properties are ideal materials for electromagnetic interference (EMI) shielding. Herein, the conductive composites with great EMI shielding effectiveness (SE) were successfully obtained by introducing multi-walled carbon nanotube (CNT) and polydimethylsiloxane (PDMS) based on the original structure of natural wood (NW). CNT@PDMS/NW composites were prepared via vacuum-pulse impregnation method and characterized by Fourier transform infrared (FTIR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) patterns, hydrophobicity analysis, and EMI shielding performance. As demonstrated, CNT nanosheets were successfully inserted into wood matrices, and hydrogen bonding between CNT nanosheets and cellulose nanofibers induced the fabrication of CNT@PDMS/NW composites. CNT@PDMS/NW composites exhibited excellent EMI SE values of 25.2 dB at the X-band frequency.
Common fixed point results under w-distance with applications to nonlinear integral equations and nonlinear fractional Differential Equations
Authors: Ramesh Kumar D.
Published: December 2021

In this article, we prove some new common fixed point results under the generalized contraction condition using w-distance and weak altering distance functions. Also, the validity of the results is demonstrated by an example along with numerical experiment for approximating the common fixed point. Later, as applications, the unique common solutions for the system of nonlinear Fredholm integral equations, nonlinear Volterra integral equations and nonlinear fractional differential equations of Caputo type are derived.
Conformal vector fields on almost co-Kähler manifolds
Authors: De Uday Chand , Suh Young Jin , Chaubey Sudhakar K.
Published: December 2021

In this paper, we characterize almost co-Kähler manifolds with a conformal vector field. It is proven that if an almost co-Kähler manifold has a conformal vector field that is collinear with the Reeb vector field, then the manifold is a K-almost co-Kähler manifold. It is also shown that if a (κ, μ)-almost co-Kähler manifold admits a Killing vector field V, then either the manifold is K-almost co-Kähler or the vector field V is an infinitesimal strict contact transformation, provided that the (1,1) tensor h remains invariant under the Killing vector field.
Photoluminescence enhancement with all-dielectric coherent metasurfaces
Authors: Lin Yu-Tsung , Hassanfiroozi Amir , Jiang Wei-Rou , Liao Mei-Yi , Lee Wen-Jen , Wu Pin Chieh
Published: December 2021

Mie resonances have recently attracted much attention in research on dielectric metasurfaces, owning to their enriched multipole resonances, negligible optical loss, and efficient light emitter integration. Although there is a rapid advancement in this field, some fundamental developments are still required to provide a simpler and more versatile paradigm for photoluminescence (PL) control. In this work, we proposed that an all-dielectric coherent metasurface can engineer the PL response by tuning the array size. Such PL manipulation is attributed to the collective Mie resonances that mediate the inter-unit interactions between unit elements and alter the PL intensity. Metasurfaces with different chip sizes are utilized to explore the array size effect on the collective Mie resonances, field enhancement, and Q-factor in TiO2 metasurfaces. Incorporating the all-dielectric coherent metasurface with fluorescent photon emitters, we performed the dependence of PL enhancement on array size, which achieves an enhancement factor of ∼10 at the central area of a 90 × 90 μm2 TiO2 metasurface array. These findings provide an additional degree of freedom to engineer the near-field confinement and enhancement, allowing one to manipulate incoherent photon emission and tune light–matter interaction at the nanoscale.
In situ regulation of microstructure and microwave-absorbing properties of FeSiAl through HNO3 oxidation
Authors: Guo Yang , Zhang Liwen , Lu Haipeng , Jian Xian
Published: December 2021

Wrapping insulation of coatings is effective for enhancing the microwave-absorbing properties (MAPs) of ferromagnetic absorbents (FMAs). However, the process is still limited by the low bonding strength with the matrix. Herein, an in situ regulation strategy based on the preparation of thin thickness and strong adhesion insulating layers through HNO3 oxidation was developed to address the limitations. The oxidation process of FeSiAl (FSA) powders was carried out by HNO3 following three main steps. First, the original oxide layer first reacted with HNO3 to form Fe3+ and Al3+. Second, the oxide layer composed of Al2O3 and Fe3O4 was preferentially formed due to the negative change in Gibbs free energy. Finally, the oxide and pigment-deposition layers were subjected to competitive growth and dissolution accompanied by the dissolution of Fe and Al atoms. Oxidation time up to 10 min resulted in the formation of a bilayer structure with a thickness of ∼50 nm on the FSA surface, as well as an outer layer crammed of Al(OH)3 and Fe(OH)3, and an inner layer containing mixed Fe2O3, Fe3O4, Al2O3, and SiO2. The MAPs of as-treated FSA achieved minimum reflection loss (RL) of −25.90 dB at 13.36 GHz, as well as absorption bandwidth of 5.61 GHz (RL < −10 dB) at 10.13–15.74 GHz and thickness of 2.5 mm. In sum, the developed route looks promising for the preparation of high-performance FMAs.
Stable novel and accurate solitary wave solutions of an integrable equation: Qiao model
Authors: Zhao Dexu , Lu Dianchen , Salama Samir A. , Khater Mostafa M. A.
Published: December 2021

This article investigates the dynamical and physical behavior of the second positive member in a new, utterly integrable hierarchy. This investigation depends on constructing novel analytical and approximate solutions to the Qiao model. The model’s name is after the researcher who derived the mathematical formula of it in 2007. This model possesses a Lax representation and bi-Hamiltonian structure. This study employs the unified and variational iteration (VI) method to obtain analytical and numerical solutions to the considered model. The obtained analytical solutions are used to calculate the necessary conditions for applying the suggested numerical method that makes checking the obtained solutions’ accuracy a valuable option. The obtained solutions are sketched in different techniques to explain more physical and dynamics details of the Qiao model and show the matching between obtained solutions.
Double-layer coating using MHD flow of third-grade fluid with Hall current and heat source/sink
Authors: Zeeshan  , Khan Ilyas , Amina  , Alshammari Nawa , Hamadneh Nawaf
Published: December 2021

Multiple coating assessments of fiber optics utilizing micropolar convection non-Newtonian third-order liquid in the existence of Hall effect are examined and executed throughout this academic article. The wet-on-wet (WOW) coating process is used in the research. The fourth Runge–Kutta–Fehlberg algorithm is used to computationally solve the governing equations which dictate the movement of fluid inside the container. In this research, the RK4-Fehlberg algorithm is applied to get numerical results for a list of nonlinear ordinary differential equations (ODEs) describing liquid motion. Pictorially, the contribution of regulating variables on velocity and temperature profiles is examined. It is observed that the velocity profile enhances as the viscoelastic parameter increases and the velocity profile increases for both the non-Newtonian and Hall current increasing parameters in the presence and absence of magnetic parameter M. It is observed that the velocity of the fluid decreases with the increasing values of the Hartmann number m, Brinkman number Br, and magnetic parameter M. Furthermore, the temperature profile increase for

B
r

Br

, K, M, and opposite effect is observed for

β

\beta

increases. The suggested approach is compared to homotopy analysis method (HAM) for verification purpose, and excellent agreement is obtained. In addition, as a restricted scenario, a connection is made with the existing literature.
Liquid metal-based metamaterial with high-temperature sensitivity: Design and computational study
Authors: Deng Guangsheng , Fang Linying , Yang Jun , Yin Zhiping , Fang Yong
Published: December 2021

This article proposes a metamaterial-based temperature sensor with high sensitivity using the thermally tunable liquid metal of mercury. The response of the metamaterial at different temperatures is theoretically investigated. In the merit of the temperature-sensitive thermal expanding of the embedded mercury resonant structure, different absorption peak frequencies can be observed at different temperatures, which enables the proposed metamaterial capability of temperature sensing. The numerical simulations show that the temperature sensitivity of the proposed sensor can reach up to 27.64 MHz/°C within the range of 0–21.8°C. The calculated electric field and surface current distributions illustrate that the high sensitivity is originated from the dual-dipole mode of the resonant structure. Meanwhile, the dependence of the structural dimensions on temperature sensitivity is discussed to optimize the sensor design. The proposed strategy paves a new way for developing temperature sensors with high sensitivity.
Polymer Quantification Methods for Geosynthetic Clay Liners Enhanced with Anionic Polymers
Authors: Norris Anna , Scalia Joseph , Shackelford Charles D.
Published: December 2021

Two methods of quantifying the amount of anionic polymer in enhanced bentonites (EBs), total carbon (TC) and loss on ignition (LOI), and several procedures were evaluated. Both methods can be applied to EBs comprising sodium bentonite (NaB) and a polymer. The composite procedure requires the use of a calibration curve created via measurement of the same EBs at varying known polymer contents. The component procedure separates the measurements of the NaB and polymer comprising the EB. The procedures evaluated included component LOI, composite TC, and two component TC procedures, one that measured only TC (component A TC) and another that measured both TC and total inorganic carbon (component B TC). The EBs evaluated included NaB enhanced with one of several anionic polymers, including low-, medium-, and high-molecular-weight poly(acrylic acid), low- and high-viscosity sodium carboxymethyl cellulose, and covalently crosslinked sodium polyacrylate. Polymer contents of geosynthetic clay liners (GCLs) containing EBs after permeation with 500 mM sodium chloride (NaCl) or 167 mM calcium chloride (CaCl2) also were determined, and the results from the different procedures were compared. The component LOI procedure underestimated the actual polymer content of EB regardless of specimen mass or polymer type. The polymer content of nonhydrated EB-GCLs was measured within ±0.1 % (error ≤ ±6.0 %) using the composite TC procedure, corroborating the usefulness of this procedure for determining the polymer content of the EBs in pre-permeated EB-GCLs. The polymer loading of nonhydrated EBs in EB-GCLs also was measured within ±0.3 % (error ≤ ±6.4 %) using the component A TC procedure. In post-permeated EB-GCLs, the composite and component A TC procedures resulted in final polymer contents similar to those for the component B TC procedure (within 0.4–0.8 %). Thus, all three TC procedures were viable for quantifying the polymer content of the post-permeated EB-GCLs.
EDIÇÃO COMPLETA
Authors: Editores Os
Published: December 2021

REVISTA AUGUSTUS

Rio de Janeiro: UNISUAM, 2021. Semestral.   DOI: 10.15202/1981-1896.v28n55
ABORDAGENS TEÓRICAS E CONCEITUAIS ACERCA DO CURRÍCULO NO ENSINO EM CIÊNCIAS
Authors: De Pádua Cavalcanti Bastos Marcus Alexandre , Cavalcanti Eliane Cristina Tenório , Pereira Marcelo de Jesus , Cabral Shirley Araújo , Bastos Nathan da Costa Cavalcanti
Published: December 2021

O trabalho em tela pretende apresentar algumas questões acerca do currículo em ciências por meio da abordagem pós‐crítica. Essa perspectiva apresenta várias contraposições ao currículo tradicional, que tem como base o pensamento moderno, e que marca profundamente o modelo atual de educação, especialmente no currículo em ciências. A abordagem tradicional promove a compartimentarização do conhecimento, em que o conteúdo é tratado de forma fragmentada e separada da complexidade da realidade. Além disso, ele também preconiza que é possível atingir científico universal e verdades absolutas válidas para todos. Em contrapartida, o currículo pós-critico considera a influência que as dimensões política, social e cultural têm na produção do conhecimento. Essa perspectiva promove a heterogeneidade e estabelece conexões entre os diversos saberes. De caráter teórico-bibliográfico, a pesquisa toma como principais referências as contribuições de Michel Foucault (1986), Gilles Deleuze (1995), Jacques Derrida (1995), Alfredo Veiga Netto (2002), Silvio Gallo (2007), Tomaz Tadeu da Silva (1994, 1993, 2004, 2006, 2009), Lopes e Macedo (2002) e outros. Como resultado, a vertente pós‐crítica para o currículo em ciências, possibilita a integração entre as disciplinas sem uma filiação ou um eixo organizador único. Ela permite sair do aprisionamento, da fixidez, do essencialismo metodológico imposto pela filosofia moderna que tanto têm marcado os processos educacionais contemporâneos, especialmente o currículo.
Striatal Cholinergic Interneurons Are Required for Contending Strategy Selection While Solving Spatial Navigation Problems
Authors: Beccaria Juan P. , Pretell Annan Carlos A. , Keifman Ettel , Murer M. Gustavo , Belforte Juan E.
Published: December 2021

How do animals adopt a given behavioral strategy to solve a recurrent problem when several effective strategies are available to reach the goal? Here we provide evidence that striatal cholinergic interneurons (SCINs) modulate their activity when mice must select between different strategies with similar goal-reaching effectiveness. Using a cell type-specific transgenic murine system, we show that adult SCIN ablation impairs strategy selection in navigational tasks where a goal can be independently achieved by adopting an allocentric or egocentric strategy. SCIN-depleted mice learn to achieve the goal in these tasks, regardless of their appetitive or aversive nature, in a similar way as controls. However, they cannot shift away from their initially adopted strategies, as control mice do, as training progresses. Our results indicate that SCINs are required for shaping the probability function used for strategy selection as experience accumulates throughout training. Thus, SCINs may be critical for the resolution of cognitive conflicts emerging when several strategies compete for behavioral control while adapting to environmental demands. Our findings may increase our understanding about the emergence of perseverative/compulsive traits in neuropsychiatric disorders with a reported SCIN reduction, such as Tourette and Williams syndromes.

SIGNIFICANCE STATEMENTSelecting the best suited strategy to solve a problem is vital. Accordingly, available strategies must be compared across multiple dimensions, such as goal attainment effectiveness, cost–benefit trade-off, and cognitive load. The striatum is involved in strategy selection when strategies clearly diverge in their goal attainment capacity; however, its role whenever several strategies can be used for goal reaching—therefore making selection dependent on additional strategy dimensions—remains poorly understood. Here, we show that striatal cholinergic interneurons can signal strategy competition. Furthermore, they are required to adopt a given strategy whenever strategies with similar goal attainment capacity compete for behavioral control. Our study suggests that striatal cholinergic dysfunction may result in anomalous resolution of problems whenever complex cognitive valuations are required.
Shape effect of Cu, Al2O3 and TiO2 nanoparticles on stagnation point nanofluid flow in a microgravity environment
Authors: M.H.A. Kamal  , A. Ali  , Y.J. Lim  , N.A. Rawi  , S. Shafie
Published: December 2021

The unsteady viscous nanofluid flow near a three-dimensional stagnation point was studied numerically under microgravity environment. g-Jitter is one of the effects occurs under microgravity environment that producing a fluctuating gravitational field. Three different types of nanoparticles were induced in the study that is copper (Cu), alumina (Al2O3), and titania (TiO2) which then produce a water-based typed of nanofluid. In addition, different shape of nanoparticle was applied on the study in analyzing the performance of each types of nanoparticle. The fluid system was then mathematically formulated into a system of partial differential equation based on physical law and principle such as conservation of mass, Newton’s second law and conservation of energy. The system of equation then undergoes semi-similar transformation technique in reducing the complexity of the problem into non dimensionless form. Keller box method was applied into the dimensionless system of equations in solving the problem numerically. The problem was analyzed in term of velocity and temperature profiles together with skin friction coefficient and Nusselt number. The results shown that temperature profile, skin friction coefficient and Nusselt number were increase while velocity profile decreased as nanoparticle volume fraction decreased. The results indicated that, the needle-shaped nanoparticles give the highest enhancement on the heat transfer of the nanofluid compared to sphere and disk-shaped nanoparticles with more than 14% significant different. In addition,  alumina hold the highest velocity profile while copper hold the lowest velocity profile.
The Classification of Covid-19 cases through the Employment of Transfer Learning on X-ray images
Authors: Hakimi Nur Ameerah , Mohd  Razman Mohd Azhar , P. P. Abdul Majeed Anwar
Published: December 2021

Covid-19 is a contagious disease that known to cause respirotary infection in humans. Almost 219 countries are effected by the outbreak of the latest coronavirus pandemic, exceed 100 millions of confirmed cases and about 2 million death recorded aound the world. This condition is alarming as some of the people who are infected with the virus show no symptoms of the disease. Due to the number of confirmed cases rapidly rising around the world, it is crucial  find another method to diagnose the disease at the beginnings stage in order to control the spreading of the virus. Another alternative test from the main screening method is by using chest radiology image based detection which are X-ray or CT scan images. The aim of this research is to classify the Covid-19 cases by using the image classification technique.The dataset consist of 2000 images of chest X-ray images and have two classes which are Covid and Non-Covid. Each of the class consists of 1000 images.This research compare the performance of the various Transfer Learning models (VGG-16, VGG-19, and Inception V3) in extracting the feature from X-ray image combined with machine learning model (SVM, kNN, and Random Forest) as a classifier. The experiment result showed the VGG-19, VGG-16, and Inception V3 coupled with optimized SVM pipelines are comparably efficient in classifying the cases as compared to other pipelines evaluated in this reaseach and could archieved 99% acuuracy on the test datasets.
The Paris Agreement 5 Years Later: The Challenges of Climate Finance and Multilateral Development Banks
Authors: Gugliotta Oscar Rosario
Published: December 2021

In all matters regarding climate change, the modern world presents complex challenges which highlight how investments in infrastructure have as of yet been inconclusive. The emission percentages calculated by relevant studies demonstrate the need for long-term investments in infrastructures, to ultimately reduce the impact on the environment and our health. To this end, in alignment with the principles expressed in the Paris Agreement – reducing global warming and incentivising a zero-emission transportation system – and the Sustainable Development Goals (SDGs), these new infrastructures will require a structural change that can be guaranteed by multilateral development banks (MDBs), given their nature, especially within developing countries. MDBs play an important role in supporting local governments, on the one hand creating a prosperous environment for sustainable infrastructures and, on the other, providing innovative financial instruments that could increase the financial sector’s participation. In this paper, aft er a brief excursus on the Paris Agreement’s role in the global climatic crisis, there will be an evaluation of the relations between MDBs and climate finance, with a focus on green bonds.
Polish, and Slovak, Women in the European Parliament: an Analysis of the Results of the Election Held in May 2019
Authors: Lis-Staranowicz Dorota , Jáger Róbert
Published: December 2021

The objective of our paper is to analyse the political activity of Polish, and Slovak, women in EP elections; we aim to determine, among other things: whether gender quotas are a decisive factor for women’s electoral success, or do other factors result in an increase/decrease in the number of female candidates and the number of women MEPs? What are the particular characteristics of women representing Poland, and Slovakia, in the EP? What was their path to the EP? Which (conservative, liberal) parties are more willing to put women forward in EP elections? Poland introduced the so-called gender quotas into the electoral system, while Slovakia does not have such legal solutions in place. However, when comparing Slovakia to the situation in Poland, it can be stated that although there is a system of election quotas in Poland, its practical implementation may be purely theoretical. In percentage terms, the number of Slovak women elected to the European Parliament (except 2019) was significantly higher than in Poland, even though there is no quota system in the Slovak Republic. The success of Polish, and Slovak, women in the elections to the EP of the 9th term is the result of many factors, which include so-called electoral engineering (quotas, gender balance, first and second places on lists), electoral strategy of a party, but above all, political and social activity of the women themselves. We consider the last factor to be determinant in this respect.