bluuebunny/crossref_metadata_2025 huggingface dataset:
A Unified Framework for the H∞ Mixed-Sensitivity Design of Fixed Structure Controllers through Putinar Positivstellensatz
Authors: Razza Valentino , Salam Abdul
Published: August 2021

In this paper, we present a novel technique to design fixed structure controllers, for both continuous-time and discrete-time systems, through an H∞ mixed sensitivity approach. We first define the feasible controller parameter set, which is the set of the controller parameters that guarantee robust stability of the closed-loop system and the achievement of the nominal performance requirements. Then, thanks to Putinar positivstellensatz, we compute a convex relaxation of the original feasible controller parameter set and we formulate the original H∞ controller design problem as the non-emptiness test of a set defined by sum-of-squares polynomials. Two numerical simulations and one experimental example show the effectiveness of the proposed approach.
Effects of High Intensity Plank Exercise on Physical Fitness and Immunocyte Function in a Middle-Aged Man: A Case Report
Authors: Park Sang-Kyun , Lee Ki-Soo , Heo Seung-Jae , Jee Yong-Seok
Published: August 2021

Background and Objectives: Although the plank exercise is difficult to perform for untrained people, it does not require money, special equipment, or much space. However, it is not known how plank exercises affect physical fitness and immunocyte function. This study analyzed the changes in physical fitness and immune cells of a middle-aged man after performing 4 weeks of elbow plank exercise. Materials and Methods: Elbow plank exercise was performed for approximately 20 min (resting time, around 10 min) a day, 5 days a week for 4 weeks. The intensity was checked daily with ratings of perceived exertion (RPE). When the participant reached an intensity of RPE 15, RPE 16, and RPE 17 of the RPE 20 scale, 1 min of rest was given before repeating the process. Results: Compared with the pre-values, (1) all the physical fitness factors (muscle strength, muscle endurance, flexibility, and cardiopulmonary fitness) were increased after 4 weeks; (2) body weight, skeletal muscle mass, and the basal metabolic rate were increased, whereas body fat mass and fat percentage were decreased; and (3) although the variables of complete blood count were changed positively, some were not. Specifically, CD3, CD8, and CD56 were increased, whereas CD4, CD4/CD8, and cytotoxicity were decreased. These results show that elbow plank exercise can improve all factors of physical fitness and improve some of the immunocyte functions of a middle-aged man. Conclusions: This study confirmed that, although the elbow plank exercise of vigorous intensity for 4 weeks improved physical fitness, it was not effective in improving some immunocyte functions. Therefore, the exercise intensity of plank exercises for improving immunocyte functions should be reconsidered.
Effects of an Alternating Magnetic Field towards Dispersion of α-Fe2O3/TiO2 Magnetic Filler in PPOdm Polymer for CO2/CH4 Gas Separation
Authors: Yap Yun Kee , Oh Pei Ching
Published: August 2021

Magnetic-field-induced dispersion of magnetic fillers has been proven to improve the gas separation performance of mixed matrix membranes (MMMs). However, the magnetic field induced is usually in a horizontal or vertical direction. Limited study has been conducted on the effects of alternating magnetic field (AMF) direction towards the dispersion of particles. Thus, this work focuses on the incorporation and dispersion of ferromagnetic iron oxide–titanium (IV) dioxide (αFe2O3/TiO2) particles in a poly (2,6-dimethyl-1,4-phenylene) oxide (PPOdm) membrane via an AMF to investigate its effect on the magnetic filler dispersion and correlation towards gas separation performance. The fillers were incorporated into PPOdm polymer via a spin-coating method at a 1, 3, and 5 wt% filler loading. The MMM with the 3 wt% loading showed the best performance in terms of particle dispersion and gas separation performance. The three MMMs were refabricated in an alternating magnetic field, and the MMM with the 3 wt% loading presented the best performance. The results display an increment in selectivity by 100% and a decrement in CO2 permeability by 97% to an unmagnetized MMM for the 3 wt% loading. The degree of filler dispersion was quantified and measured using Area Disorder of Delaunay Triangulation mapped onto the filler on binarized MMM images. The results indicate that the magnetized MMM presents a greater degree of dispersion than the unmagnetized MMM.
l-Lactate: Food for Thoughts, Memory and Behavior
Authors: Veloz Castillo María Fernanda , Magistretti Pierre J. , Calì Corrado
Published: August 2021

More and more evidence shows how brain energy metabolism is the linkage between physiological and morphological synaptic plasticity and memory consolidation. Different types of memory are associated with differential inputs, each with specific inputs that are upstream diverse molecular cascades depending on the receptor activity. No matter how heterogeneous the response is, energy availability represents the lowest common denominator since all these mechanisms are energy consuming and the brain networks adapt their performance accordingly. Astrocytes exert a primary role in this sense by acting as an energy buffer; glycogen granules, a mechanism to store glucose, are redistributed at glance and conveyed to neurons via the Astrocyte–Neuron Lactate Shuttle (ANLS). Here, we review how different types of memory relate to the mechanisms of energy delivery in the brain.
Path Planning for 3-D In-Hand Manipulation of Micro-Objects Using Rotation Decomposition
Authors: Kumar Pardeep , Gauthier Michaël , Dahmouche Redwan
Published: August 2021

Robotic manipulation and assembly of micro and nanocomponents in confined spaces is still a challenge. Indeed, the current proposed solutions that are highly inspired by classical industrial robotics are not currently able to combine precision, compactness, dexterity, and high blocking forces. In a previous work, we proposed 2-D in-hand robotic dexterous manipulation methods of arbitrary shaped objects that considered adhesion forces that exist at the micro and nanoscales. Direct extension of the proposed method to 3-D would involve an exponential increase in complexity. In this paper, we propose an approach that allows to plan for 3-D dexterous in-hand manipulation with a moderate increase in complexity. The main idea is to decompose any 3-D motion into a 3-D translation and three rotations about specific axes related to the object. The obtained simulation results show that 3-D in-hand dexterous micro-manipulation of arbitrary objects in presence of adhesion forces can be planned in just few seconds.
The Specific Gravity-Free Method for the Isolation of Circulating Tumor KRAS Mutant DNA and Exosome in Colorectal Cancer
Authors: Lee Tae Hee , Park Eunsook , Goh Young-gon , Lee Han Byul , Rou Woo Sun , Eun Hyuk Soo
Published: August 2021

Background: Circulating tumor DNA (ctDNA) and exosome have been widely researched in the field of medical technology and diagnosis platforms. The purpose of our study was to improve the capturing properties of ctDNA and exosome, which involved combining two beads using approaches that may provide a new method for cancer diagnoses. Methods: We present a dual isolation system including a polydopamine (PDA)–silica-coated alginate bead for circulating tumor DNA (ctDNA) capture and an anti-CD63 immobilized bead for exosome capture. We examined the ctDNA mutation in pre-operative plasma samples obtained from 91 colorectal cancer (CRC) patients using a droplet digital PCR (ddPCR). Results: The area under the curve (AUROC) of ctKRAS G12D mutation in the buffy coat was 0.718 (95% CI: 0.598−0.838; p = 0.001). Patients with CRC that had unmethylation of MLH1 and MSH2 showed significantly higher buffy coat ctKRAS G12D mutations, ascites ctKRAS G12D mutations, miR-31-5, and mixed scores than the patients with a methylation of MLH1 and MSH2. Conclusion: Our proposed alginate bead using the specific gravity-free method suggests that the screening of mutated ctKRAS DNA and miR-31-5 by liquid biopsy aids in identifying the patients, predicting a primary tumor, and monitoring in the early detection of a tumor.
Multi-Drug Resistance Bacterial Infections in Critically Ill Patients Admitted with COVID-19
Authors: Pasero Daniela , Cossu Andrea Pasquale , Terragni Pierpaolo
Published: August 2021

Introduction. It is known that bacterial infections represent a common complication during viral respiratory tract infections such as influenza, with a concomitant increase in morbidity and mortality. Nevertheless, the prevalence of bacterial co-infections and secondary infections in critically ill patients affected by coronavirus disease 2019 (COVID-19) is not well understood yet. We performed a review of the literature currently available to examine the incidence of bacterial secondary infections acquired during hospital stay and the risk factors associated with multidrug resistance. Most of the studies, mainly retrospective and single-centered, highlighted that the incidence of co-infections is low, affecting about 3.5% of hospitalized patients, while the majority are hospital acquired infections, developed later, generally 10–15 days after ICU admission. The prolonged ICU hospitalization and the extensive use of broad-spectrum antimicrobial drugs during the COVID-19 outbreak might have contributed to the selection of pathogens with different profiles of resistance. Consequently, the reported incidence of MDR bacterial infections in critically ill COVID-19 patients is high, ranging between 32% to 50%. MDR infections are linked to a higher length of stay in ICU but not to a higher risk of death. The only risk factor independently associated with MDR secondary infections reported was invasive mechanical ventilation (OR 1.062; 95% CI 1.012–1.114), but also steroid therapy and prolonged length of ICU stay may play a pivotal role. The empiric antimicrobial therapy for a ventilated patient with suspected or proven bacterial co-infection at ICU admission should be prescribed judiciously and managed according to a stewardship program in order to interrupt or adjust it on the basis of culture results.
Elemental Enrichment in Shallow Subsurface Red Sea Coastal Sediments, Al-Shuaiba, Saudi Arabia: Natural vs. Anthropogenic Controls
Authors: Ghandour Ibrahim M. , Aljahdali Mohammed H.
Published: August 2021

Geochemical analysis of the 23 sediment samples collected from a short (0.6 m long) core retrieved from the coastal creek that was previously connecting the northern and southern Al-Shuaiba Lagoons, Red Sea, Saudi Arabia, was accomplished to assess the elemental enrichment levels and the natural and anthropogenic driving forces for this enrichment. Statistical analysis and upcore variation in elemental concentrations enabled subdivision of the core formally into three units, lower, middle, and upper. The enriched elements in the lower and middle units display poor to negative correlations with the enriched elements in the upper unit. The lower unit is enriched in elements (Mo, As, U, and Re) suggesting deposition under anoxic conditions, possibly related to the Medieval Climate Anomaly. The middle unit is enriched in the carbonate-related constituents (CaCO3, Ca, and Sr). The upper unit is enriched in elements that co-vary significantly with Al suggesting increased terrigenous supply associated with the construction of the road between the two lagoons. The enrichment of elements in the lower and middle units is naturally driven, whereas the enrichment of lithogenic elements in the upper unit, though of geogenic origin, is induced after the road construction.
Petrography and Shock Metamorphism of the Lunar Breccia Meteorite NWA 13120
Authors: Xia Zhipeng , Miao Bingkui , Zhang Chuantong , Chen Hongyi , Xie Lanfang , Ranjith P. M. , Zhang Yikai , Si Bowen
Published: August 2021

Lunar meteorites are the fragments of rocks that fell on Earth because of the impacts of asteroids on the Moon. Such rocks preserve information about the composition, evolutionary process, and shock history of the lunar surface. NWA 13120 is a recently discovered lunar breccia meteorite having features of strong shock, which is composed of lithic and mineral clasts in a matrix of very fine-grained (<10 μm) and recrystallized olivine-plagioclase with a poikilitic-like texture. As the most abundant lithic clasts, the crystalline impact melt (CIM) clasts can be divided into four types according to their texture and mineral composition: (1) anorthosites or troctolitic anorthosite with a poikilitic-like texture, but the mineral content is different from that of the matrix; (2) anorthosites containing basaltic fragments and rich in vesicles; (3) troctolitic anorthosite containing metamorphic olivine mineral fragments; (4) troctolitic anorthosite containing troctolite fragments. Based on the petrology and mineralogy, NWA 13120 is a lunar meteorite that was derived from the ferrous anorthosite suite (FANs) of the lunar highlands, while its texture suggests it is a crystalline impact melt breccia. In addition, we infer that the parent rock of NWA 13120 is a lunar regolith breccia enriched in glass fragments. During the shock process, at pressures of more than 20 GPa, all plagioclase fragments were transformed into maskelynites, and olivine fragments occurred metamorphism. The post-shock temperature led to the partial melting of the basaltic fragments. Subsequently, all glass with diverse components in the parent rock were devitrified and recrystallized, forming the common olivine-plagioclase poikilitic-like texture and different CIM clasts. Meanwhile, the devitrification of maskelynite formed the accumulation of a large number of plagioclase microcrystals. Therefore, NWA 13120 is a meteorite of great significance for understanding the local shock metamorphism of lunar rocks on the lunar surface.
Evaluation of Dispersion of Lead-Bearing Mine Wastes in Kabwe District, Zambia
Authors: Nakamura Shinsaku , Igarashi Toshifumi , Uchida Yoshitaka , Ito Mayumi , Hirose Kazuyo , Sato Tsutomu , Mufalo Walubita , Chirwa Meki , Nyambe Imasiku , Nakata Hokuto , Nakayama Shouta , Ishizuka Mayumi
Published: August 2021

Dispersion of lead (Pb) in mine wastes was simulated for reproducing Pb contamination of soil in Kabwe District, Zambia. Local weather data of year 2019 were monitored in situ and used for the simulations. The plume model, weak puff model, and no puff model were adopted for calculation of Pb dispersion under different wind conditions. The results showed that Pb dispersion from the Kabwe mine was directly affected by wind directions and speeds in the dry season, although it was not appreciably affected in the rainy season. This may be because the source strength is lower in the rainy season due to higher water content of the surface. This indicates that Pb dispersion patterns depend on the season. In addition, the distribution of the amount of deposited Pb-bearing soils around the mine corresponded to the distribution of Pb contents in soils. These results suggest that Pb contamination in soils primarily results from dispersion of fine mine wastes.
Spectroscopic Identification of Hydrogen Bond Vibrations and Quasi-Isostructural Polymorphism in N-Salicylideneaniline
Authors: Hetmańczyk Łukasz , Goremychkin Eugene A. , Waliszewski Janusz , Vener Mikhail V. , Lipkowski Paweł , Tolstoy Peter M. , Filarowski Aleksander
Published: August 2021

The ortho-hydroxy aryl Schiff base 2-[(E)-(phenylimino)methyl]phenol and its deutero-derivative have been studied by the inelastic incoherent neutron scattering (IINS), infrared (IR) and Raman experimental methods, as well as by Density Functional Theory (DFT) and Density-Functional Perturbation Theory (DFPT) simulations. The assignments of vibrational modes within the 3500–50 cm−1 spectral region made it possible to state that the strong hydrogen bond in the studied compound can be classified as the so-called quasi-aromatic bond. The isotopic substitution supplemented by the results of DFT calculations allowed us to identify vibrational bands associated with all five major hydrogen bond vibrations. Quasi-isostructural polymorphism of 2-[(E)-(phenylimino)methyl]phenol (SA) and 2-[(E)-(phenyl-D5-imino)methyl]phenol (SA-C6D5) has been studied by powder X-ray diffraction in the 20–320 K temperature range.
Ecumene of Artificial
Authors:   Institute for Economic Strategies, Ageev Aleksandr I.
Published: August 2021

Opening address of the Editor-in-chief
2021: Paradoxes of January — May
Authors:   Institute of Economy of the Russian Academy of Sciences, Frenkel Alexander A. , Tikhomirov Boris I. ,   Institute of Economy of the Russian Academy of Sciences., Sergienko Yakov V. ,   Institute of Economy of the Russian Academy of Sciences, Surkov Anton A. ,   Institute of Economy of the Russian Academy of Sciences.
Published: August 2021

Changing of a conjuncture index of “Economic strategy” (CIES) for five months of 2021 is considered. The contribution of indicators of supply and demand in CIES is estimated. The analysis of industrial production is carried out.
The Limits That Choose Us. Reports to the Club of Rome: Schematization Experience
Authors:   International Research Institute for Advanced Systems., Pereslegin Sergei B. , Lukovnikova Natal'ya M. ,   St. Petersburg National Research University of Information Technologies, Mechanics and Optics.
Published: August 2021

It wouldn't be too exaggerated to say that today, in the second year of the coronavirus infodemic, we live in a world designed by the Club of Rome. Moreover, here we can speak of “negative geoplanetary architecture”: the Club of Rome did not expand and complicate the current reality, but sought to limit it, to remove some of its significant elements, thereby completely changing not only the structure of the world, but also the paradigm of human existence. And the Club of Rome has succeeded in this, though it is still not clear — for better or for the worse, whether the club acted as an independent actor or as an agent of some forces interested in redistributing world financial flows? Or even acted as a Marxist "historical necessity". In any case, it has influenced the thinking of intellectuals, economists and politicians of three generations.
Raising Labor Productivity: from the Shchekino Experiment (1967) to the “Labor Productivity and Employment Support” National Project (2018). What's Next?
Authors:   International Research Institute for Advanced Systems., Khainish Stanislav V.
Published: August 2021

The article provides examples of introducing advanced management practices at Russian enterprises, and also describes the experience of highly skilled managers with an adequate to market realities mentality. According to the author, by actively mastering the three “whales” — management, mentality and business culture — we increase labor productivity, and therefore we have every reason to increase the workers' wages, which are unacceptably low today.
On the issue of improving the legal framework in the framework of the system of children health in the Russian Federation (review)
Authors: Karpova Oksana Borisovna , Zagoruichenko Anna Anatolyevna
Published: August 2021

The state of maternal and child health plays a key role in promoting and protecting public health. The article analyzes and summarizes the results of the analysis of legislative support for maternal and child health. The analysis of individual indicators that determine the current state of medical organizations ‘activities is presented. The purpose of the study is to determine the current directions for improving the system of maternal and child health in Russia. Materials and methods. The following methods were used: information and analytical, content analysis, comparative analysis, and statistical analysis. Sources of primary information — scientific publications, Rosstat data, regulatory legal materials. Results and discussion. Proposals for the use of the current legislation of the Russian Federation in protecting the health of mothers and children are identified. There is a need to improve the use of the current regulatory and legislative framework to improve individual indicators of the state of health of mothers and children. The analysis showed that positive results were achieved in 2012–2019 in the Russian Federation in terms of improving maternal and child health. Conclusion. The implementation of regulatory legal provisions in this area should be based on a comprehensive coordination of all activities between various departments and structures, regional characteristics of the state of health of mothers and children and such areas as prevention of neglect, medical and social assistance to orphans and children left without parental care, maintaining a healthy lifestyle and providing the children’s population with sanatorium-resort medical organizations should be taken into account.
The state of transformations in the healthcare system of the Russian Federation
Authors: Goloshchapova Lyudmila Vyacheslavovna
Published: August 2021

The study is devoted to the analysis of the implemented measures in relation to the healthcare sector in the Russian Federation, which are designed to improve the standard of living of citizens. In particular, the state program of the Russian Federation «Development of Healthcare» is considered. The paper analyzes the quantitative statistical indicators that most representatively reflect the results achieved at the present stage. The aim of the work is also to identify how the Russian healthcare system is currently being transformed and what prospects are provided by the state. The purpose of the study: To analyze the process of implementation of state programs in the field of healthcare in terms of quantitative and qualitative characteristics of their implementation. Materials, methods and conditions of research. The materials of the implementation of the state program «Development of Healthcare», the national project «Healthcare», the statistical yearbooks of the Federal State Statistics Service for 2018–2020, as well as statistical information from the databases of Rosgosstat of the Russian Federation were studied. Objectives of the study: to analyze and evaluate the state of ongoing transformations in the Russian healthcare system, by identifying the main directions of development, as well as analyzing relevant statistical data. Research perspective. At present, the problem of health development is more urgent than ever, and the problem is becoming particularly acute, against the background of the spread of the COVID-19 virus pandemic. For rapid response and elimination of hotbeds of infection, it is necessary to provide the population with sufficient basic parameters for providing medical services. Therefore, it is important to analyze how effective the actions of the state are to increase the ratio of the number of doctors to the number of the population. At the same time, it is necessary to consider the opportunities for motivating employees in this field, which are currently created.
A LiPF6-LiFSI Blended-Salt Electrolyte System for Improved Electrochemical Performance of Anode-Free Batteries
Authors: Choi Haeyoung , Bae YeoJi , Lee Sang-Min , Ha Yoon-Cheol , Shin Heon-Cheol , Kim Byung Gon
Published: August 2021

ANODE-free Li-metal batteries (AFLMBs) operating with Li of cathode material have attracted enormous attention due to their exceptional energy density originating from anode-free structure in the confined cell volume. However, uncontrolled dendritic growth of lithium on a copper current collector can limit its practical application as it causes fatal issues for stable cycling such as dead Li formation, unstable solid electrolyte interphase, electrolyte exhaustion, and internal short-circuit. To overcome this limitation, here, we report a novel dual-salt electrolyte comprising of 0.2 M LiPF6 + 3.8 M lithium bis(fluorosulfonyl) imide in a carbonate/ester co-solvent with 5 wt% fluoroethylene carbonate, 2 wt% vinylene carbonate, and 0.2 wt% LiNO3 additives. Because the dual-salt electrolyte facilitates uniform/dense Li deposition on the current collector and can form robust/ionic conductive LiF-based SEI layer on the deposited Li, a Li/Li symmetrical cell exhibits improved cycling performance and low polarization for over 200 h operation. Furthermore, the anode-free LiFePO4/Cu cells in the carbonate electrolyte shows significantly enhanced cycling stability compared to the counterparts consisting of different salt ratios. This study shows an importance of electrolyte design guiding uniform Li deposition and forming stable SEI layer for AFLMBs.
Caffeine consumption and Parkinson’s disease: a mini-review of current evidence
Authors: Victorino Daniella Balduino , Guimarães-Marques Marcia Jonathas , Nehlig Astrid
Published: August 2021

In the absence of efficient disease-modifying treatments for Parkinson’s disease (PD), research has focused on identifying potential environmental factors whose modulation may prevent or slow the progression of this neurodegenerative disorder. Compelling epidemiological evidence suggests that caffeine consumption is inversely associated with the risk of developing PD. Further experimental findings demonstrated that caffeine, by particularly targeting adenosine A2A (A2AR) receptors, protected PD animal models against the loss of dopaminergic neurons. The antagonistic action of caffeine on adenosine receptors not only slowed PD-related neurodegeneration, but also improved motor and nonmotor symptoms of PD in animal models. Here, we review the potential action mechanisms by which caffeine might play a role in reducing the risk of PD. We also review current evidence of the benefits of caffeine consumption in motor and nonmotor symptoms of PD. Finally, we point out how these promising findings could lead to the identification of new approaches for effective treatment of PD.
COMPREENSÃO FENOMENOLÓGICA EXISTENCIAL ACERCA DA DEPENDÊNCIA QUÍMICA NA CONTEMPORANEIDADE
Authors: Castheloge Stéphany Nicolini , Maggioni Daniela Martins , Luciano Mariana Juriatto , dos Santos Thamiris Lima , Santos Andréa De Fátima
Published: August 2021

Este trabalho tem o objetivo de através da Abordagem Fenomenológica Existencial, apresentar uma maior compreensão acerca dos motivos que levam o Homem ao uso e dependência de drogas ilícitas na contemporaneidade.
Técnicas experimentales en física del estado sólido. Conductividad térmica en metales
Authors: Moriche Tirado Rocío , Gallardo López Ángela María
Published: August 2021

Recurso de Realidad Virtual que ubica al usuario en un laboratorio de Física de Estado Sólido para realizar un montaje práctico con el que estimará la conductividad térmica de dos metales.

El recurso permite al alumno seleccionar el material de laboratorio necesario y va planteando cuestiones sobre el montaje y realización de la práctica. Las selecciones correctas puntúan positivamente y permiten avanzar mientras que las incorrectas puntúan negativamente y bloquean el paso. Un contador va reflejando los aciertos, los fallos y el tiempo consumido. Tras cada selección correcta, aparece un vídeo explicativo. En la escena final se activa un informe de resultados para descargar y una serie de vídeos con los datos necesarios. El alumno o alumna deberá registrar los datos de esos vídeos y seguir las instrucciones del informe para representarlos, analizarlos y obtener finalmente la conductividad térmica de los dos metales propuestos.

Para llevar a cabo el recurso es necesario que el alumno-a haya leído previamente el guion o boletín de la práctica correspondiente donde se hace una breve introducción teórica y se proporcionan los detalles prácticos para su correcta ejecución.
Intelectuales y políticas de comunicación en América Latina
Authors: Sánchez Narvarte Roberto Emiliano
Published: August 2021

Este libro presenta algunos tópicos trabajados en mi tesis titulada "Antonio Pasquali, un itinerario intelectual transnacional: comunicación, cultura y política (1958-1989)", defendida en abril de 2020, en el marco del doctorado en Comunicación de la Facultad de Periodismo y Comunicación Social de la Universidad Nacional de La Plata. A diferencia de esa investigación, aquí la trayectoria académica y las conceptualizaciones del teórico venezolano Pasquali, además de ser estudiadas, serán una puerta de entrada para pensar los nudos problemáticos que han surgido en la relación entre intelectuales y políticas de comunicación en América Latina, desde mediados del siglo xx hasta la primera década del siglo XXI. No pretendemos hacer un análisis histórico de las políticas de comunicación, sino más bien pensar cómo en el devenir de los problemas y dilemas que atravesaron a una franja de la intelectualidad venezolana ‒y latinoamericana‒, el campo de las regulaciones estatales del mercado comunicacional se fue convirtiendo en un espacio de disputa e intervención, un campo de problemas teóricos y políticos desde el cual incorporarse a los debates públicos por transformar y democratizar la producción cultural. Como veremos, Pasquali tuvo una destacada participación como promotor y militante de la democratización del mercado de bienes simbólicos a partir de su inserción en distintos movimientos culturales y políticos.
Changes made to the teaching of linear algebra and calculus courses in the UK in response to the COVID-19 pandemic
Authors: Alarfaj Maryam , O'Hagan Steven , Sangwin Chris
Published: August 2021

In response to the COVID-19 pandemic, university mathematics departments in the UK adapted their teaching for 2020-21, with some courses being delivered digitally and others through a mixture of on-campus and digital delivery. A survey of linear algebra and calculus lecturers was carried out in the spring of 2021 to investigate what changes were made to courses, as well as lecturers’ perceptions of institutional decision making and support. This survey found that a majority of the 41 participants were satisfied that the choice of delivery mode was correct, although views about the importance of offering on-campus classes were mixed. There was a significant increase in the use of video clips made by the lecturer, video-conferencing software, discussion forums, electronic submission of written work and on-screen marking tools. Most lecturers reported a reduction in the amount of time that students were expected to be taking part in live teaching activities and an increase in the amount of time they were expected to be working on asynchronous activities. While some were keen to return to their previous practice, others were enthusiastic about retaining features introduced in response to the COVID-19 pandemic.
Jornada Exploratória
Authors: Carvalho Amanda Schmidt , Silva Gabriela Prates da , Sousa Rodrigo Silva Caxias de
Published: August 2021

Analisa as formas de busca e uso de informações de mestres de RPG. A partir do conceito de comportamento informacional, discute o quanto o conceito de imaginário se consagra fundamental na composição das dinâmicas do jogo. Problematiza essas dinâmicas considerando os conceitos de necessidade busca e compartilhamento de informações.  A metodologia de cunho qualitativo se estruturou a partir da Técnica de Análise de Conteúdo (BARDIN, 2016) de acordo com o critério semântico dos textos explicitados. As análises permitem afirmar que o processo de criação ocorre fundamentado na ausência de padrões, tendo por referência a conjunção de diferentes aspectos em relação ao do uso de fontes formais e informais associadas à internet. A busca de informações está relacionada a aspectos instrumentais e lógicos do jogo e as motivações elencadas têm como referência a socialização e a colaboração entre os participantes do jogo.
Lazer à Performance
Authors: Ferreira Jéssica Barbosa , Moraes Letícia Cristina Lima , Marchi Júnior Wanderley
Published: August 2021

Os jogos eletrônicos se desenvolveram durante os anos, sendo conhecidos por muito tempo como um tipo de atividade recreacional e de lazer. O crescimento da internet possibilitou o surgimento de um novo cenário, em que alguns jogadores puderam se profissionalizar, originando o e-Sport. Objetiva-se apresentar um histórico sobre o desenvolvimento dos jogos eletrônicos e sua passagem de uma prática de lazer para uma atividade esportiva profissional. Conclui-se que a disseminação dos e-Sports se deve às características modernas, dinâmicas e distintivas que os esportes eletrônicos têm adquirido, à vasta procura e, consequentemente, oferta da prática, sendo visível a presença dos processos de mercantilização, espetacularização, amadorismo, institucionalização e profissionalização que os e-Sports passaram e passam, com cada processo não ocorrendo de forma linear um com o outro, mas sim interconectados.
Cartografia dos Territórios da Escola
Authors: Silva Leandro Veloso
Published: August 2021

Este artigo apresenta passos e reconhecimentos de uma pesquisa de doutorado, que buscou abordar e problematizar questões no entorno do sujeito social ‘criança’ no seu processo de conhecer e aprender no decorrer do ‘brincar’ nos momentos de ‘lazer’ da/na ‘infância’ nos territórios da Escola. Para tanto, se subsidia num movimento de uma pesquisa bibliográfica, ancorada nos caminhos metodológicos desenhados por meio de uma pesquisa qualitativa e pós-crítica, tendo como rota a abordagem de uma cartografia. Nesse sentido, teve como objetivo se movimentar com a escola e com seus atores e sujeitos sociais, para ‘compreender como a cartografia pode mapear espaços dentro dos territórios da escola, e, desta forma, apontar os acontecimentos de inflexões de aprendizagem, por meio das práticas sociais presentes nos brincares dessas crianças em lugares identificados e denominados como sendo ‘espaços heterotópicos de lazer’.
O Consumo de Vinho em Tempos de Isolamento Social
Authors: Silva Tamiris Martins da , Stoppa Edmur Antonio
Published: August 2021

A relação entre o lazer e consumo bebidas alcoólica é algo tão comum e inerente ao ser humano que praticamente não existe estudos que discutam o tema com profundidade. Geralmente, a relação está atrelada ao convívio e sociabilidade em momentos de festas, comemorações, encontros diversos sejam para celebrar alguma ocasião feliz ou mesmo triste, rituais religiosos ou fortalecer relacionamentos sociais. Contudo, é ainda mais difícil encontrar estudos que teorizem o aumento expressivo do consumo de bebidas alcoólicas relacionados ao lazer, em períodos de isolamento social provocado por pandemias, como o caso da que ocorre em 2020 em todo o mundo, provocada pelo novo Coronavírus. Dessa forma, o objetivo deste artigo é discutir os dados estatísticos apresentados por alguns estudos no primeiro semestre de 2020 que evidenciaram o aumento do consumo de vinho no Brasil à luz dos estudos do lazer sobre a fuga da realidade, fonte de prazer e status. A escolha do vinho entre tantas outras bebidas alcoólicas se deu pelo seguinte motivo: enquanto o consumo de cerveja, que ocorre principalmente entre amigos, apresentou uma queda no primeiro trimestre de 2020, no mesmo período, o consumo de vinho aumentou significativamente, com compras em compras através de e-commerce e lojas físicas, como supermercados e atacadistas.
Cuidar da saúde mental “Garimpando o Cotidiano”: grupos terapêuticos em um Centro de Atenção Psicossocial
Authors: Perígolo Jorge Letícia , Vasconcelos Leite Roberta
Published: August 2021

O projeto de extensão “Garimpando o Cotidiano” realiza grupos de elaboração da experiência para promover saúde mental em Diamantina – MG, embasado na Fenomenologia. Em 15 meses, foram realizados 19 encontros no Centro de Atenção Psicossocial - CAPS Renascer, com 323 participantes. Identificam-se duas fases dos grupos neste período, que demonstram amadurecimento. Conclui-se que a proposta de atenção a acontecimentos cotidianos como estratégia de cuidado tem mobilizado transformações nos participantes.
"Utilização de modelos celulares em biscuit como prática alternativa para o ensino de Biologia"
Authors: Cunha Trindade Igor , Fernanda de Paula Chimenes Carla , Niemeyer Ruas Hilara , de Lucca Moreira Gomes Marcos
Published: August 2021

Buscando a integralização no processo educativo, este relato de experiência procurou demonstrar que a utilização de modelos celulares em biscuit auxilia e enriquece a compreensão do conhecimento em Biologia Celular, além de facilitar a articulação entre teoria e prática impactando vigorosamente no processo de formação docente.
Divulgando o Curso Superior ‘Bacharelado em Agronomia’ IFSC Campus Canoinhas
Authors: André Wurz Douglas , Schick Jefferson , Nabir Kowal Alcemir
Published: August 2021

Desde 2019, a região do Planalto Norte Catarinense tem o primeiro curso gratuito e presencial na área de Ciências Agrárias, o que representa um avanço à melhoria do setor agropecuário na região e um aumento do índice de pessoas com ensino superior completo. No entanto, boa parte da comunidade local desconhece a oferta deste curso, o que torna a adoção de práticas de extensão necessárias para sua divulgação. Buscou-se com o presente projeto divulgar o curso superior ‘Bacharelado em Agronomia’ do IFSC Campus Canoinhas durante o ano de 2019. Ao longo do projeto, a divulgação atingiu 295 estudantes do ensino médio.
Beira-trilhos: a extensão universitária e o direito à cidade
Authors: Antonio Leite Frandoloso Marcos , Nichespois Scorsatto Eduardo , Costa Boff Natália , Panhossatt Daniela
Published: August 2021

O objetivo do Projeto de Extensão Universitária Beira-Trilhos é buscar alternativas que contribuam para a construção do direito à cidade para as populações das ocupações Beira-Trilhos de Passo Fundo/RS, dando continuidade aos processos iniciados em 2005, com relação aos aspectos jurídicos, urbanísticos e sociais ampliando suas perspectivas e interfaces. Como contribuição para as futuras soluções, foram desenvolvidos estudos de repertorização de casos similares e possíveis alternativas de organização do território. O trabalho busca fomentar a discussão desta temática, comum a diferentes comunidades brasileiras com ferrovias dentro de suas áreas urbanizadas, de maneira transversal nas atividades de Extensão Universitária, e também a partir dos pressupostos de sua articulação com o Ensino e a Pesquisa.
Extensão inovadora para agregação de renda à cadeia produtiva de mel de abelhas-sem-ferrão
Authors: Aparecida Spinosa Wilma , Carla Henrique Bana Fernanda , Humberto Soares José , Claudia Arruda Motta Soares Ana
Published: August 2021

A meliponicultura ou criação de abelhas-sem-ferrão possibilita aos agricultores familiares a extração e a comercialização de mel como fonte de alimentação e renda. Este artigo tem como objetivo relatar o desenvolvimento de uma barra de cereais com mel de abelha-sem-ferrão, de fácil execução, e a transferência desse produto inovador aos meliponicultores da região de Londrina-PR. Um convênio entre instituições oportunizou a oferta de um curso teórico e de uma oficina de elaboração de barra de cereais aos produtores de mel. Como resultado, os professores e alunos se sentiram valorizados por atenderem demandas reais da comunidade externa, ampliando seus conhecimentos técnicos e sua interação social. Os meliponicultores, por sua vez, conheceram uma nova forma de diversificação de produtos e geração de renda.
Extensão universitária como ferramenta de melhoria e desenvolvimento: aspectos higiênico-sanitários de uma Unidade de Alimentação e Nutrição (UAN)
Authors: Gleyce dos Reis Nunes Tielly , Maria Meireles Cunha Luana , Braga da silva Lima Mayra , Lúcia Sousa Consuelo
Published: August 2021

O presente trabalho teve como objetivo avaliar as condições higiênico-sanitárias de uma Unidade de Alimentação e Nutrição - UAN antes e depois de cursos de capacitação. Para avaliar as adequações às Boas Práticas de Fabricação –BPF elaborou-se um checklist que foi aplicado em duas vistorias, antes e após o treinamento. Foram realizadas análises microbiológicas em diversos utensílios e nas mãos do manipulador responsável pela UAN. Realizou-se diversos cursos relacionados às BPF e as técnicas de conservação e armazenamento de alimentos que se iniciaram após a primeira vistoria. No período avaliado, a UAN passou da classificação de “RUIM” para “REGULAR” e algumas análises microbiológicas apresentaram resultados acima do permitido na legislação. Os treinamentos foram considerados excelentes por quase todos os participantes.
Aplicação da Educação Alimentar e Nutricional no contexto de uma escola para pessoas com deficiência
Authors: Trindade Assis Johnny , Rodrigues Carvalho Lynnara , Roberta Freitas Pires Caroline , Neves de Sousa Diego
Published: August 2021

A Educação Alimentar e Nutricional (EAN) tem por finalidade colaborar com a promoção e a melhoria na qualidade da saúde baseada numa alimentação saudável e adequada. Diante disso, o objetivo deste artigo é relatar a aplicação de ações de EAN que visou estimular e desenvolver o interesse pelo consumo de alimentos saudáveis nos escolares inseridos na Associação de Pais e Amigos dos Excepcionais (APAE) de Palmas-TO, utilizando diferentes estratégias de atividades lúdicas, com foco no estímulo para adoção de hábitos alimentares saudáveis. Durante as atividades, os alunos demonstraram certa dificuldade quanto ao reconhecimento de alimentos importantes para uma alimentação saudável devido às peculiaridades desses escolares. No entanto, a aplicação de ações de EAN se confirmou como uma importante ferramenta de aprendizagem e promoção da saúde.
Analisis Perbandingan Financial Distress Pada Perusahaan Sub Sektor Rokok Periode 2015-2019
Authors: Makruf Anang , Ramdani Deni
Published: August 2021

Abstract – The aim of the study was to analyze financial distress in cigarette companies list in Indonesia Stock Exchange in 2015-2019 using 3 methods, Altman Z-Score, Zmijewski, and Springate. Purposive sampling is used in this study to determine the sampling technique. The sample used in this study released 4 cigarette companies. Descriptive asalysis with quantitative models was used to analyze data in this research. Altman Z-Score, Zmijewski, and Springate in 2015-2019 PT. HM Sampoerna Tbk, PT. Gudang Garam Tbk, and PT. Wismilak Inti Makmur Tbk is related to safe, but it is needed a company that is estimated to be grey in the Altman Z-Score calculation in 2018, PT. Wismilak Inti Makmur Tbk. The Z-score is at the limit because the companie has a ratio with a lower value in market value of equity  to book value of liabilities

 

Abstrak – Penelitian ini memiliki bertujuan untuk menganalisis perbandingan kesulitan keuangan dalam perusahaan sun sektor rokok di Indonesia Stock Exchange periode 2015-2019 menggunakan tiga metode. Metode yang digunakan yaitu Altman Z-Score, Zmijewski, dan Springate. Purposive sampling digunakan dalam penelitian ini untuk menentukan teknik pengambilan sampel. Sampel yang digunakan berjumlah 4 perusahaan rokok. Analisis deskriptif dengan pendekatan kuantitatif digunakan sebagai teknik analisis data. Dalam penelitian ini menjelaskan financial distress yang dihitung menggunakan metode Altman Z-Score, Zmijewski , dan Springate pada tahun 2015-2019 PT. HM Sampoerna Tbk, PT. Gudang Garam Tbk, dan PT. Wismilak Inti Makmur Tbk mengalami dalam kondisi keuangan yang sehat, namun terdapat perusahaan yang diestimasi rawan kebangkrutan pada perhitungan Altman Z-Score pada  tahun 2018 yaitu PT. Wismilak Inti Makmur Tbk. hal ini dapat terjadi  karena nilai Z-Score PT. Wismilak Inti MakmurTbk  berada pada Z < 1,81 salah satu penyebabnya ialah rendahnya rasio market value of equity terhadap liabilities.
Pengaruh Creative Tourist Experience, Travel Motivation dan Perceived Risk Terhadap Revisit Intention Pada Wisata Edukasi Secara Virtual
Authors: Mayasari Novyta Putri , Artanti Yessy
Published: August 2021

Abstract – The development of the progress of tourism potential is currently increasing with the emergence of tourist changes in attracting tourist. Tourism managers are required to be able to provide tourist comfort to maintain the popularity of tourism even during a pandemic. Some tourism managers during the pandemic offer virtual educational tours. This study aims to analyze the effect of creative tourist experience, travel motivation and perceived risk on revisit intention. This research uses non probability sampling and judgmental sampling method to target respondents. The respondent is someone who was visited the Surabaya Zoo virtually during the Covid-19 pandemic, with a vulnerable age of 13-50 years as many as 200 respondents. The data analysis technique used multiple regression. The results of this study indicate that creative tourist experience and travel motivation have significant effect on revisit intention. Meanwhile, perceived risk has no significant effect on revisit intention. 

Abstrak – Perkembangan kemajuan potensi pariwisata saat ini terus meningkat dengan munculnya perubahan-perubahan wisata dalam menarik perhatian wisatawan. Pengelola wisata dituntut dapat memberikan kenyamanan wisatawan untuk mempertahankan popularitas wisata bahkan ketika pada masa pandemi. Beberapa pengelola wisata dimasa pandemi menawarkan wisata edukasi secara virtual. Penelitian ini bertujuan untuk menganalisis pengaruh creative tourist experience, travel motivation dan perceived risk terhadap revisit intention pada wisata edukasi secara virtual. Penelitian ini menggunakan non probability sampling dengan judgment sampling. Responden adalah seseorang yang telah mengunjungi Kebun Binatang Surabaya secara virtual di masa pandemi Covid-19, dengan rentan usia 13-50 tahun sebanyak 200 responden. Teknik analisis data menggunakan regresi berganda. Hasil penelitian ini menunjukkan bahwa creative tourist experience dan travel motivation berpengaruh signifikan terhadap revisit intention. Sedangkan perceived risk tidak berpengaruh signifikan terhadap revisit intention.
Escritura en la universidad: redactar y enseñar textos académicos
Authors: Cuartas Montero Deysi Liliana ,   Universidad Santiago de Cali, Salazar Ríos William ,   Universidad Santiago de Cali, Sánchez Borrero Ana Milena ,   Universidad Santiago de Cali, Cantillo Sanabria Martha Graciela ,   Universidad Santiago de Cali, Sánchez Jorge Mario ,   Universidad Santiago de Cali, Parra Puentes Alexandra ,   Universidad Santiago de Cali, Zamudio Tobar Gladys ,   Universidad Santiago de Cali, Giraldo Ramírez Germán ,   Universidad Santiago de Cali, Miranda Calderón Katherine ,   Universidad Santiago de Cali, Salinas Alexander ,   Universidad Santiago de Cali, Medina Patricia ,   Universidad Santiago de Cali
Published: August 2021

¿Cómo exponer mis ideas por escrito? ¿Qué tipo de texto debo escoger? ¿Cómo estructurar mis ideas según el tipo de texto a escribir? Estas y otras preguntas son comunes en la cotidianidad académica, pues la escritura es un reto comunicativo constante en la vida de los estudiantes universitarios. A su vez, los docentes también deben enfrentarse constantemente a los desafíos que implica enseñar y evaluar a partir del texto escrito. Los capítulos consignados en Escritura en la universidad: redactar y enseñar textos académicos no solo buscan indagar en las diferentes tipologías textuales académicas, sino que son una guía para que tanto estudiantes como docentes puedan mejorar su rol dentro del proceso de enseñanza- aprendizaje. Por un lado, el estudiante podrá reconocer los diferentes tipos de texto (reseña, texto argumentativo, relatoría, entre otros), su estructura y estrategias para plasmar sus ideas correctamente; por otro lado, el docente encontrará diversas posibilidades para que la escritura sea una herramienta para la enseñanza de los contenidos disciplinares.