bluuebunny/crossref_metadata_2025 huggingface dataset:
Concept Design of a High-Voltage Electrostatic Sanitizer to Prevent Spread of COVID-19 Coronavirus
Authors: Behjat Vahid , Rezaei-Zare Afshin , Fofana Issouf , Naderian Ali
Published: November 2021

In addition to public health measures, including social distancing, masking, cleaning, surface disinfection, etc., ventilation and air filtration can be a key component of a multi-pronged risk mitigation strategy against COVID-19 transmission indoors. Electrostatic precipitators (ESP) have already proved their high performance in fluid filtration, particularly in industrial applications, to control exhaust gas emissions and remove fine and superfine particles from the flowing gas, using high-voltage electrostatic fields and forces. In this contribution, a high-voltage electrostatic sanitizer (ESS), based on the electrostatic precipitation concept, is proposed as a supportive measure to reduce indoor air infection and prevent the spread of COVID-19 coronavirus. The finite element method (FEM) is used to model and simulate the proposed ESS, taking into account three main mechanisms involving in electrostatic sanitization, namely electrostatic field, airflow, and aerosol charging and tracing, which are mutually coupled to each other and occur simultaneously during the sanitization process. To consider the capability of the designed ESS in capturing superfine particles, functional parameters of the developed ESS, such as air velocity, electric potential, and space charge density, inside the ESS are investigated using the developed FEM model. Simulation results demonstrate the ability of the designed ESS in capturing aerosols containing coronavirus, precipitating suspended viral particles, and trapping them in oppositely charged electrode plates.
Synthesis of Mesoporous γ-Alumina Support for Water Composite Sorbents for Low Temperature Sorption Heat Storage
Authors: Ocvirk Manca , Ristić Alenka , Zabukovec Logar Nataša
Published: November 2021

The efficiency of thermochemical heat storage is crucially determined by the performance of the sorbent used, which includes a high sorption capacity and a low regeneration temperature. The thermochemical salt hydrate– γ-alumina composite sorbents are promising materials for this application but lack systematic study of the influence of γ-alumina structural properties on the final storage performance. In this study, mesoporous γ-Al2O3 supports were prepared by solvothermal and hydrothermal synthesis containing a block copolymer (F-127) surfactant to design thermochemical CaCl2 and LiCl composite water sorbents. Altering the solvent in the synthesis has a significant effect on the structural properties of the γ-Al2O3 mesostructure, which was monitored by powder XRD, nitrogen physisorption, and SEM. Solvothermal synthesis led to a formation of mesoporous γ-Al2O3 with higher specific surface area (213 m2/g) and pore volume (0.542 g/cm3) than hydrothermal synthesis (147 m2/g; 0.414 g/cm3). The highest maximal water sorption capacity (2.87 g/g) and heat storage density (5.17 GJ/m3) was determined for W-46-LiCl containing 15 wt% LiCl for space heating, while the best storage performance in the sense of fast kinetics of sorption, without sorption hysteresis, low desorption temperature, very good cycling stability, and energy storage density of 1.26 GJ/m3 was achieved by W-46-CaCl2.
Energy-Efficient and Disjoint Multipath Using Face Routing in Wireless Sensor Networks
Authors: Cho Hyunchong , Oh Seungmin , Shin Yongje , Lee Euisin
Published: November 2021

In WSNs, multipath is well-known as a method to improve the reliability of packet delivery by making multiple routes from a source node to a destination node. To improve reliability and load-balancing, it is important to ensure that disjoint characteristics of multipath do not use same nodes during path generation. However, when multipath studies encounter a hole area from which is hard to transmit data packets, they have a problem with breaking the disjoint features of multipath. Although existing studies propose various strategies to bypass hole areas, they have side effects that significantly accelerate energy consumption and packet transmission delay. Therefore, to retain the disjoint feature of multipath, we propose a new scheme that can reduce delay and energy consumption for a node near a hole area using two approaches—global joint avoidance and local avoidance. This scheme uses global joint avoidance to generate a new path centered on a hole area and effectively bypasses the hole area. This scheme also uses local joint avoidance that does not select the same nodes during new path generation using a marking process. In simulations, the proposed scheme has an average 30% improvement in terms of average energy consumption and delay time compared to other studies.
Stability Metric Based on Sensitivity Analysis Applied to Electrical Repowering System
Authors: Paiva João R. B. , Magalhães Alana S. , Moraes Pedro H. F. , Bulhões Júnio S. , Calixto Wesley P.
Published: November 2021

Stability metrics are used to quantify a system’s ability to maintain equilibrium under disturbances. We did not identify the proposition of a stability metric using sensitivity analysis within the literature. This work proposes a system stability metric and its application to an electrical repowering system. The methodology for applying the proposed metric comprises: (i) system parameters sensitivity analysis and spider diagram construction, (ii) determining the array containing the line segments inclination angles of each spider diagram curve, and (iii) stability calculation using the array mean and maximum inclination value of a line segment. After simulating the model built for the electrical repowering system and applying the methodology, we obtain results regarding the sensitivity indices and stability values of system inputs relative to their outputs, considering the original system and with reduced parameters. Using the stability study, it was possible to determine different stability categories for the system parameters, which indicates the need for different analysis levels.
Investigation of an Inclined Heat Pipe Heat Exchanger as a Passive Cooling Mechanism on a Photovoltaic Panel
Authors: Aamir Al-Mabsali Samiya , Candido Jay Pillo , Chaudhry Hassam Nasarullah , Gul Mehreen Saleem
Published: November 2021

An investigation on the heat transfer coefficient (HTC) of a heat pipe heat exchanger (HPHE) was carried out while being installed as a cooling mechanism on photovoltaic panels. The Ecohouse at the University of Technology and Applied Sciences in Muscat, Oman, was used as the case study. The experiment monitored the effect of temperature variations on PV-HPHE-induced power generation. The heat pipes were arranged in a double-sided condenser in a spanwise manner with spacing 50 mm in the center with an inclination angle of 3°. J-type thermocouples (exposed wire, polytetrafluoroethylene (PTFE) insulated) with a tip diameter of 1.5 mm were used. The results indicated mean values of HTC that were measured at 2.346 W/m2 K. The findings showed that the HTC values possessed a minimal standard error from the effect of variations of the ambient temperature. The mean HTC value of 2.346 W/m2 K can be used in the succeeding experiments using the same novel PV-HPHE setup. Additional results showed the recorded variations from the mean value of the HTC effect on the HPHE heat flow generation, which resulted in a 29% increase in power performance efficiency using PV-HPHE.
Ionospheric Remote Sensing with GNSS
Authors: Peng YuXiang , Scales Wayne A.
Published: November 2021

The Global Navigation Satellite System (GNSS) plays a pivotal role in our modern positioning, navigation and timing (PNT) technologies. GNSS satellites fly at altitudes of approximately 20,000 km or higher. This altitude is above an ionized layer of the Earth’s upper atmosphere, the so called “ionosphere”. Before reaching a typical GNSS receiver on the ground, GNSS satellite signals penetrate through the Earth’s ionosphere. The ionosphere is a plasma medium consisting of free charged particles that can slow down, attenuate, refract, or scatter the GNSS signals. Ionospheric density structures (also known as irregularities) can cause GNSS signal scintillations (phase and intensity fluctuations). These ionospheric impacts on GNSS signals can be utilized to observe and study physical processes in the ionosphere and is referred to ionospheric remote sensing. This entry introduces some fundamentals of ionospheric remote sensing using GNSS.
Community Formation as a Byproduct of a Recommendation System: A Simulation Model for Bubble Formation in Social Media
Authors: Bagnoli Franco , de Bonfioli Cavalcabo’ Guido , Casu Banedetto , Guazzini Andrea
Published: November 2021

We investigate the problem of the formation of communities of users that selectively exchange messages among them in a simulated environment. This closed community can be seen as the prototype of the bubble effect, i.e., the isolation of individuals from other communities. We develop a computational model of a society, where each individual is represented as a simple neural network (a perceptron), under the influence of a recommendation system that honestly forward messages (posts) to other individuals that in the past appreciated previous messages from the sender, i.e., that showed a certain degree of affinity. This dynamical affinity database determines the interaction network. We start from a set of individuals with random preferences (factors), so that at the beginning, there is no community structure at all. We show that the simple effect of the recommendation system is not sufficient to induce the isolation of communities, even when the database of user–user affinity is based on a small sample of initial messages, subject to small-sampling fluctuations. On the contrary, when the simulated individuals evolve their internal factors accordingly with the received messages, communities can emerge. This emergence is stronger the slower the evolution of individuals, while immediate convergence favors to the breakdown of the system in smaller communities. In any case, the final communities are strongly dependent on the sequence of messages, since one can get different final communities starting from the same initial distribution of users’ factors, changing only the order of users emitting messages. In other words, the main outcome of our investigation is that the bubble formation depends on users’ evolution and is strongly dependent on early interactions.
Evaluation of Effect of Brassinolide in Brassica juncea Leaves under Drought Stress in Field Conditions
Authors: Naveen Naveen , Kumari Nisha , Avtar Ram , Jattan Minakshi , Ahlawat Sushil , Rani Babita , Malik Kamla , Sharma Anubhuti , Singh Manjeet
Published: November 2021

Drought stress is considered to be a major factor responsible for reduced agricultural productivity, because it is often linked to other major abiotic stresses, such as salinity and heat stress. Understanding drought-tolerance mechanisms is important for crop improvement. Moreover, under drought conditions, it is possible that growth regulators are able to protect the plants. Brassinosteroids not only play a regulatory role in plant growth, but also organize defense mechanisms against various tresses. This study aimed to evaluate the effect of brassinolide on physio-biochemical amendment in two contrasting cultivars (drought-tolerant RH 725, and drought-sensitive RH 749) of Brassica juncea under drought stress. Two foliar sprayings with brassinolide (10 and 20 mg/L) were carried out in both cultivars (RH 725 and RH 749) at two stages—i.e., flower initiation, and 50% flowering—under stress conditions. The results clearly revealed that the activities of antioxidative enzymes and non-enzymatic antioxidants (carotenoids, ascorbic acid, and proline) increased significantly in RH 725 at 50% flowering, whereas 20 mg/L of brassinolide showed the most promising response. The different oxidative stress indicators (i.e., hydrogen peroxide, malondialdehyde, and electrolyte leakage) decreased to a significant extent at 20 mg/L of brassinolide spray in RH 725 at 50% flowering. This study indicates that brassinolide intensifies the physio-biochemical attributes by improving the antioxidant system and photosynthetic efficiency in RH 725 at 50% flowering. It is assumed that enhanced production of proline, improvement of the antioxidant system, and reduction in the amount of stress indicators impart strength to the plants to combat the stress conditions.
“Nobody Seems to Know Where to Even Turn To”: Barriers in Accessing and Utilising Dementia Care Services in England and The Netherlands
Authors: Giebel Clarissa , Robertson Sarah , Beaulen Audrey , Zwakhalen Sandra , Allen Dawn , Verbeek Hilde
Published: November 2021

Background: Accessing post-diagnostic care can be difficult for people with dementia and their informal carers. Little is known, however, about the determinants of barriers to access, and how these might vary between countries. The aim of this study was to explore potential inequalities in access to formal dementia care services between England and the Netherlands, specifically from more disadvantaged areas. Methods: This was a mixed-methods study, involving semi-structured qualitative interviews and a carer questionnaire. People with dementia and informal carers were recruited by clinicians. The postal survey was co-produced with people with dementia, informal carers, and health care professionals. The survey asked carers about their own and their relatives with dementia’s, social support service usage and financing; as well as how they were made aware of services and whether they required more support. Qualitative transcripts were analysed by two researchers in each country using thematic analysis. Results: A total of 103 carer questionnaires were received by post and 13 interviews were conducted with people with dementia and family carers between January 2020 and April 2020. Many services were accessed via self-funding. Thematic analysis generated five core themes: Health literacy; Having faith and lack of faith; Service suitability; Structural issues surrounding service provision; and Financing care. One major difference between both country’s systems of care were the case manager and network support which people with dementia and carers benefitted from in the Netherlands, which was rarely the case in the UK. Conclusions: People with dementia and informal carers need to be supported better in accessing formal dementia care services in both the UK and the Netherlands, whilst some learning can be taken to improve access.
Barriers and Facilitators to Resuming In-Person Psychotherapy with Perinatal Patients amid the COVID-19 Pandemic: A Multistakeholder Perspective
Authors: Andrejek Nicole , Hossain Sabrina , Schoueri-Mychasiw Nour , Saeed Gul , Zibaman Maral , Puerto Niño Angie K. , Meltzer-Brody Samantha , Silver Richard K. , Vigod Simone N. , Singla Daisy R.
Published: November 2021

During the COVID-19 pandemic, outpatient psychotherapy transitioned to telemedicine. This study aimed to examine barriers and facilitators to resuming in-person psychotherapy with perinatal patients as the pandemic abates. We conducted focus group and individual interviews with a sample of perinatal participants (n = 23), psychotherapy providers (n = 28), and stakeholders (n = 18) from Canada and the U.S. involved in the SUMMIT trial, which is aimed at improving access to mental healthcare for perinatal patients with depression and anxiety. Content analysis was used to examine perceived barriers and facilitators. Reported barriers included concerns about virus exposure in a hospital setting (77.8% stakeholders, 73.9% perinatal participants, 71.4% providers) or on public transportation (50.0% stakeholders, 26.1% perinatal participants, 25.0% providers), wearing a mask during sessions (50.0% stakeholders, 25.0% providers, 13.0% participants), lack of childcare (66.7% stakeholders, 46.4% providers, 43.5% perinatal participants), general transportation barriers (50.0% stakeholders, 47.8% perinatal participants, 25.0% providers), and the burden of planning and making time for in-person sessions (35.7% providers, 34.8% perinatal participants, 27.8% stakeholders). Reported facilitators included implementing and communicating safety protocols (72.2% stakeholders, 47.8% perinatal participants, 39.3% providers), conducting sessions at alternative or larger locations (44.4% stakeholders, 32.1% providers, 17.4% perinatal participants), providing incentives (34.8% perinatal participants, 21.4% providers, 11.1% stakeholders), and childcare and flexible scheduling options (31.1% perinatal participants, 16.7% stakeholders). This study identified a number of potential barriers and illustrated that COVID-19 has fostered and amplified barriers. Future interventions to facilitate resuming in-person sessions should focus on patient-centered strategies based on empathy regarding ongoing risk-aversion among perinatal patients despite existing safety protocols, and holistic thinking to make access to in-person psychotherapy easier and more accessible for perinatal patients.
Development and Effectiveness of a Community Capacity Building Program for the Wellness of Traditional Marketplace Merchants: A Pilot Study
Authors: Chae Yeojoo , Ha Yeongmi
Published: November 2021

Merchants in the traditional marketplace are exposed to poor working conditions, such as long working hours, musculoskeletal stress, lack of physical activity, irregular meal times, and nutritional imbalance. This study aimed to develop a community capacity-building program for the wellness of traditional marketplace merchants and examine its effectiveness. A total of 60 merchants from two traditional markets were allocated to an experimental group and control group. The program consisted of four sections: Training wellness leaders in the traditional marketplace, wellness, organizing wellness committee, and promoting wellness partnerships. The program was conducted over 12 weeks. Significant differences were observed in week 12 between the experimental and control groups in leadership (p = 0.010), health knowledge (p < 0.001), health self-efficacy (p = 0.016), wellness (p = 0.001), and community capacity (p = 0.038). The community capacity-building program for the wellness of traditional marketplace merchants was effective in improving marketplace merchants’ leadership, health knowledge, health self-efficacy, wellness, and community capacity. Therefore, it is recommended to actively utilize this community capacity program for market merchants.
Research on Green Total Factor Productivity of Yangtze River Economic Belt Based on Environmental Regulation
Authors: He Junxia , Wang Luxia , Tang Decai
Published: November 2021

With the acceleration of industrialization and urbanization, the Yangtze River Economic Belt (YREB) is facing many environmental problems that need to be solved in the process of development. This paper aims to analyze the environmental governance effects of nine provinces and two municipalities in the Yangtze River Economic Belt from 2009 to 2018. Firstly, based on the input-output index, the slacks-based measure (SBM) undesirable model and Malmquist (ML) index were used to measure the green total factor productivity (GTFP) of the YREB from 2009 to 2018. The results showed that the technological progress index contributed the most to the GTFP of the YREB, followed by the pure technical efficiency index and the scale efficiency index. Environmental regulation has no significant impact on the GTFP of the YREB. Secondly, by analyzing the effect of environmental governance in the YREB, the results show that the main reasons for the ineffective environmental governance in the YREB are the redundant input of environmental resources, excessive unwanted output, and low harmless treatment rate of municipal solid waste, rather than the low level of urban environmental management. Finally, this paper provides recommendations for the ineffective provinces and municipalities of the YREB to further optimize the input-output factors of environmental governance.
Safety Issues in Buckling of Steel Structures by Improving Accuracy of Historical Methods
Authors: Pomares Juan Carlos , Pereiro-Barceló Javier , González Antonio , Aguilar Rafael
Published: November 2021

Buckling of structural elements is a phenomenon that has great consequences on the bearing capacity of structures. Historically, there have been serious buckling-related structural accidents that have resulted in loss of human lives and high material costs. In this article, an attempt is made to perform a historical analysis of the diverse models that experts have been using in designing and calculating compression buckling of simple metallic elements in the last 275 years. The analysis covers the lapse from the mid-18th century, in which the pioneers in this classic field of structural design are located, up to the present, highlighting the main standards that have been applied to steel structural analysis in the past and at present all over the world. What the study tries to provide is an overall view and a sense of continuity of the methods used for improving structural safety regarding buckling failures in the last three centuries. Each analyzed buckling model is compared with the results of a numerical finite element model of compressed steel columns. Finally, the conclusion reached is that in the last one hundred years, the convergence of solutions proposed in the field is gradually greater and more accurate.
Four-Year Trajectories of Health-Related Quality of Life in People Living with HIV: Impact of Unmet Basic Needs across Age Groups in Positive Spaces, Healthy Places
Authors: Sok Phan , Seeman Mary V. , Nisenbaum Rosane , Watson James , Rourke Sean B. ,   on behalf of the PSHP Team
Published: November 2021

Despite significant advances in antiretroviral therapy, unmet basic needs can negatively impact health-related quality of life (HRQoL) in people living with HIV, especially as they age. We aimed to examine the effect of unmet basic needs across age groups on changes in HRQoL over a 4-year period in persons with HIV. Physical and mental HRQoL scores from the Positive Spaces, Healthy Spaces cohort interviewed in 2006 (n = 538), 2007 (n = 506), and 2009 (n = 406) were examined across three age groups according to their unmet needs for food, clothing, and housing. Individual growth curve model analyses were used to investigate changes over time, adjusting for demographics, employment, living conditions, social supports, HIV status, and health behavior risks. Low scores on physical and mental HRQoL were positively associated with higher number of unmet basic needs (β = −6.40, standard error (SE) = 0.87, p < 0.001 and β = −7.39, SE = 1.00, p < 0.001, respectively). There was a slight improvement in physical and mental HRQoL over 4 years in this HIV cohort, but the burden of unmet basic needs took its toll on those over 50 years of age. Regularly assessing unmet basic needs is recommended given the impact these can have on HRQOL for people living with HIV. Recognition of unmet needs is vital, as is the development of timely interventions.
Competition Strategies for Location-Based Mobile Coupon Promotion
Authors: Xia Pengcheng , Li Gang , Cheng T.C.E. , Shen Ao
Published: November 2021

Location-based service heightens consumers’ shopping convenience. By utilizing spatial flexibility of consumers, retailers can target consumers via location-based mobile coupons (LBMCs) to enhance market performance. Considering the strategies for LBMC promotion for two competing retailers, we find that under different market intensities, only no adoption and symmetric adoption of LBMC promotion are the possible equilibria for the competing retailers at a low marginal targeting cost. Then, we extend our model to consider vertical (quality) differentiation and analyze the implications of adopting LBMC promotion for a superior-quality firm (with higher product valuation) and an inferior-quality firm (with lower product valuation). Mixed strategies for LBMC promotion emerge when firms’ products have different qualities. Our research findings provide useful guidance for managers and marketing practitioners to formulate strategies for targeted LBMC promotion.
Growing budget deficit and national debt: estimates, problems, risks
Authors: Kirichenko Elina Vsevolodovna
Published: November 2021

The article analyzes the structure of the US federal budget, the main sources of revenues, expenditures (annually revised discretionary spendings, mandatory financing of the main social and a number of critical areas of government activity, interest debt payments), factors affecting their dynamics. A special place is occupied by the analysis of the national (sovereign) debt of the United States, which includes two types of debt: the government’s debt to buyers of its securities (American individuals and legal entities, the Federal Reserve System, international investors, foreign governments) and the so-called intragovernmental debt. The article raises the question of where the "red line" is when the growing debt becomes dangerous for the United States. However, the article lists factors that mitigate the sovereign debt problem for the United States. Much attention is paid to the challenges that the administration of J. Biden and the Congress of the current and future convocations will have to face. In particular, in the short term, this is the need to reduce the budget deficit, to extend a number of social programs that are about to expire, but above all to resolve the debt ceiling issues. The paradoxes of decision-making in the budget process concerning the debt ceiling are considered. The points of view of experts are presented, arguing the need for refusal and preservation of the legislative codification of the debt ceiling. In the long term, the United States will face challenges such as a growing debt burden, the need to reform the budgetary decision-making process. The Congress will have to worry about how to defuse the time bomb laid down in a number of mandatory budget programs.
Violence Detection in Ranches Using Computer Vision and Convolution Neural Network
Authors: Yange Terungwa Simon , Egbunu Charity Ojochogwu , Onyekware Oluoha , Rufai Malik Adeiza , Godwin Comfort
Published: November 2021

This study engaged the convolutional neural network in curbing losses in terms of resources that farmers spends in treating animals where injuries must have emancipated from violence among other animals and in worst case scenario could eventually lead to death of animals. Animals in a ranch was the target and the study proposed a method that detects and reports activities of violence to ranchers such that farmers are relieved of the stress of close supervision and monitoring to avoid violence among animals. The scope of the study is limited to violence detection in cattle, goat, horse and sheep. Different machine learning models were built for each animal. The models yielded good results; the horse violence detection model had an outstanding performance of 93% accuracy, 93% accuracy for the sheep model, 88% accuracy for the goat model and 84% accuracy for the cattle model.
Karacakılavuz Dokumalarının Coğrafi İşaret ve Kültürel Miras Bağlamında Değerlendirilmesi ve Belgeleme Çalışması
Authors: YANAR Ayşem , ARİN Kardelen
Published: November 2021

Karacakılavuz, Tekirdağ’ın önemli dokuma merkezlerinden biridir. Yöreye ilk yerleşim Bulgaristan'ın bazı köylerinde bulunan Türkler tarafından göç yoluyla gerçekleşmiştir. Karacakılavuz’a yerleşen halk, tarım ve hayvancılıkla uğraşarak geçimlerini sağlamış, tarım ve hayvancılığın yanı sıra gündelik ihtiyaçlarını karşılamak ve aynı zamanda çuval, beşik, heybe, yaygı gibi ürünleri ek gelir sağlamak amacıyla geleneksel dokuma üretimini sürdürmüşlerdir. Yöreye özgü dokumalar meşe ve gürgen ağaçlarından yapılan dört çerçeveli tezgahlarda dokunmaktadır. Nazarlık, seccade, minder yüzü, heybe, çanta, giyim gibi kullanım alanı bulunan Karacakılavuz dimi dokumaları, yatay, dikey, serpme, merkezi ve mihraplı olmak üzere beş farklı kompozisyonu bulunmaktadır. Karacakılavuz dokumaları bölgenin coğrafi işaret alan ikinci ürünüdür. Coğrafi işaretli ürünler geleneksel olmaları, tanınırlıklarını yerel ve tarihsel değerlerle kazanmaları nedeniyle özgün ürünlerdir. Bu ürünlerin yasal ve etkin yollarla korunması yöre ekonomisine katkı sağlamaktadır. Bununla birlikte etkin bir korumayla kültürel mirasın korunmasına yardımcı olarak ürünlerin özgünlüklerinin sürdürülmesi sağlanabilmektedir.Bu çalışmada Karacakılavuz yöresinde üretilen dokumanın yapım tekniği ile dokunan dokumaların bazı fiziksel özellikleri, motif ve desen özellikleri belgeleme yoluyla tespit edilerek sergilenme yöntemlerine yönelik örnekler verilmiştir. Ayrıca Karacakılavuz dokumalarının coğrafi işaretli kültürel miras ögesi olarak önemi değerlendirilmiştir.
Revolución en dos ruedas: Los dolores y placeres de mujeres montando bicicleta durante el Período Especial
Authors: Hosek Jennifer Ruth
Published: November 2021

Título original: "Revolution on Two Wheels: Pains and Pleasures of Bicycling in the Special Period". En Cuban Studies 2021. no. 50: 251-276. Traducción de Víctor Fowler Calzada. Escritor cubano. Especialista en Industrias culturales, MINCULT.
Freirean hope as educational construct for teacher education in South Africa
Authors: Botman Beryl Verna
Published: November 2021

This article argues that South African teacher education and development policy lack an explicit philosophy of education and corresponding pedagogy that promote transformation and equality. After an analysis of some works by Paulo Freire, it is argued that it is in a Freirean philosophy of education and in a pedagogy of hope that the praxis of teacher education establishes the notion of teachers as unfinished beings and agents of hope. This article offers an opportunity to imagine what Freire’s Pedagogy of hope (FREIRE, 1994) could contribute to the dialogue regarding the policy, gazetted in 2011 and revised in 2015, on the minimum requirements for teacher education qualifications in South Africa. The fundamental role that teacher education institutions can play in contributing to the transformation of education is defended, particularly if the philosophy of Freirean education and a pedagogy of hope are compromised. The article concludes with an attempt at re-orientation of teacher education policy.
Power Reduction Methods in a Cloud Computing Environment
Authors: Segner Brent
Published: November 2021

With the explosive growth of cloud computing over the last two decades, there has been a corresponding increase in data center power requirements to meet those needs. While there are numerous additional aspects of data center power management that could be explored from an environmental and facilities perspective, this research study will primarily focus on the cloud computing infrastructure. The objective of this focus will be on answering the research question “What methods are available to optimize power consumption in a cloud computing environment?”
Clarifying the Interpretation and Use of the LOLE Resource Adequacy Metric
Authors: Stephen Gord , Tindemans Simon H. , Fazio John , Dent Chris , Figueroa Acevedo Armando , Bagen Bagen , Crawford Alex , Klaube Andreas , Logan Douglas , Burke Daniel
Published: November 2021

The loss-of-load expectation (LOLE) risk metric has been used in probabilistic power system resource adequacy assessment for over 70 years, and today is one of the most recognizable and widely-used measures of system shortfall risk. However, this wide adoption has been accompanied by ambiguities and inconsistencies in its definition and application. This paper provides a unifying reference for defining the metric as it relates to modern analyses, while clarifying a number of common points of confusion in its application. In particular, the paper clarifies that LOLE is not a measure of expected total shortfall duration, a 2.4 hours per year LOLE target implies a less reliable system than a 1 day in 10 years (0.1 days per year) LOLE target, and exact conversions between hourly and daily LOLE targets are not generally possible. Illustrative examples are provided to help explain each of these points.
Perancangan Sistem Informasi Laporan Pengiriman Barang Berbasis Web di Inventory PT.Setiap Hari Dipakai
Authors: Juliana Pratama Radix
Published: November 2021

Penelitian ini bertujuan untuk menganalisa dan merancang sebuah sistem informasi laporan pengiriman barang di inventory PT. Setiap Hari Dipakai. Dalam penelitian ini penulis menggunakan metode penelitian kualitatif, sedangkan teknik pengumpulan data yang digunakan adalah dengan melakukan wawancara, observasi, dan studi kepustakaan yang berhubungan dengan masalah yang dibahas. Metode pengembangan perangkat lunak yang digunakan adalah metode prototype, kemudian untuk pemodelan sistem yang digunakan adalah UML. Rumusan masalah dari penelitian ini adalah bagaimana membangun sebuah sistem informasi laporan pengiriman barang yang akurat. Implementasi pembuatan sistem informasi laporan  pengiriman barang berbasis web ini menggunakan PHP untuk bahasa pemrogramannya sedangkan untuk database nya menggunakan MySql. Dengan diterapkannya sistem informasi pembuatan laporan pengiriman barang berbasis web ini diharapkan dapat mempermudah karyawan PT.Setiap Hari Dipakai khususnya untuk divisi inventory dalam mempermudah pembuatan laporan pengiriman barang yang cepat dan akurat
Jokowi dan Komunikasi : Sebuah Refleksi Kepemimpinan Periode Kedua Sang Presiden
Authors: Nur Chaidir Osman
Published: November 2021

Joko Widodo atau akrab disapa Jokowi kini sedang menjalani masa jabatan kedua sebagai presiden Indonesia. Namun, perjalanan periode keduanya tidak berjalan mulus. COVID-19 telah menyerbu Indonesia sejak Maret 2020. Berbagai pernyataan Pemerintah terkait COVID-19 seolah menjadi bahan tertawaan yang menimbulkan kontroversi. Selanjutnya, berbagai pernyataan pemerintah mengenai berbagai isu publik, seperti Undang-Undang Cipta Kerja, menimbulkan gesekan yang berujung pada konflik. Komunikasi merupakan hal yang penting dalam memimpin. Dengan komunikasi, pemimpin dapat mempengaruhi orang lain. Jika terjadi kegagalan komunikasi, maka akan sulit untuk mencapai target. Artikel ini menggunakan metode studi literatur dan observasi dengan analisis kualitatif terhadap data yang terkumpul untuk menjelaskan mengapa komunikasi Jokowi menimbulkan permasalahan. Hasil penelitian menunjukkan bahwa kerangka komunikasi Jokowi mengalami kegagalan yang berujung pada inkonsistensi, ketidaksinkronan antara kerangka komunikasi pemerintah dan masyarakat. Kemudahan kepuasan masyarakat, ketidakpercayaan masyarakat, pergeseran kepemimpinan transformasional ke transaksional dan kegagalan target merupakan dampak dari kegagalan komunikasi tersebut. Di sisa masa jabatan keduanya, Jokowi harus memperbaiki kerangka komunikasinya untuk dirinya sendiri, dan pejabat pemerintahannya untuk mengurangi kemungkinan konflik di masa depan.
Abnormal shadow on chest radiograph: a supra – or infradiaphragmatic finding?
Authors: Biernacka-Racicot Katarzyna , Łukaszewski Maciej , Nowański Michał , Socha Beata , Grzelak Piotr
Published: November 2021

Incidental findings on chest X-ray of oncological patients need further evaluation in contrast-enhanced computed tomography (CT). We report two cases of abnormal shadows, detected on radiograph, in patients with breast cancer: the first one projected under the left hemidiaphragm and the second one obscuring the right hemidiaphragm. Both patients were asymptomatic, subjected to a surgery and to a CT. The first scan revealed a 15 mm diameter nodule in left lung with smooth margins and central calcifications. Whereas, the second exam showed a subcapsular, ring, calcified lesion in the liver. In both cases, CT was essential for staging and therapeutic choice.
PEDAGOGICAL CONDITIONS FOR THE FORMATION OF STUDENTS’ MOTIVATION AT PEDAGOGICAL UNIVERSITY FROM THE PERSPECTIVE OF THE INTERDISCIPLINARY APPROACH
Authors: Duka N. A. , Bogdashin A. V.
Published: November 2021

The article discusses pedagogical conditions for the formation of students’ motivation at pedagogical university. New approaches to the organization of the educational process that form the motivation of students from the position of an interdisciplinary approach are studied. The experience of using pedagogical conditions to increase students’ motivation through understanding the body’s production of dopamine is reflected.
THE ISSUE OF CREATIVE INDIVIDUALITY FORMATION OF THE TEACHER OF FINE ARTS
Authors: Skripnikova E. V. , Amirzhanova A. Sh.
Published: November 2021

The article discusses the issue of the need to form the creative individuality of the future teacher of fine arts. Particular attention is paid to the problem of improving and developing professional skills of the teacher. It is emphasized that the issue of creative individuality formation of the teacher of fine arts is currently acquiring great importance, since it affects the level of aesthetic culture and creative development of his students.
ROMANTIC NATURAL PHILOSOPHY AGAINST THE “SPIRIT OF ABSOLUTE”
Authors: Misyurov N. N.
Published: November 2021

The article deals with the problems of the Romantics’ attitude to Kantian criticism and dogmatic rationalism. The circumstances that actualized the methodological question of the principles of the separation of “idealism” and “realism” (in the Schellingian sense) are analysed. “Action” was considered by Romantics to be a more important moment of philosophizing than the ultimate goal of this process — conditional “knowledge”. It is proved that the fundamental difference of philosophical systems is due to the importance attached to the “absolute”. It is stated that the shift of emphasis from the object to the subject legitimized the new content of the “real”. It is concluded that romantic natural philosophy (“philosophy of life”) on the eve of the publication of Hegelian dialectics became an alternative to any philosophical dogmatism.
VOICES OF “THE UNHEARD” AND “NEW SINCERITY”: PRACTICES OF GERONTOLOGICAL, PENITENTIAL, ETHNIC, RELIGIOUS EXCLUSION AND THEIR CONCEPTION IN MODERN THEORY AND PHILOSOPHY OF CULTURE (PROBLEM STATEMENT)
Authors: Ovodova S. N.
Published: November 2021

The article examines the understanding of exclusion procedures in the theory and philosophy of culture. The methodological framework for studying the practices of gerontological, penitentiary, ethnic and religious exclusion in modern culture is determined. The heuristic potential of the decolonial optics and the metamodern approach in the study of exclusion practices in modern culture is revealed, which, in particular, manifests itself in changing the principles of representation of cultural traumas. Replacing the postmodern construction of the narrative about the experience of the traumatized and excluded on the principle of “shock and show” with a metamodern new sincerity allows us to move away from commodification and stigmatization. The article analyses the current trends in the construction of relationships with the Other in postcolonial discourse, decolonial optics, trauma studies, memory studies, and metamodernism.
MIDDLE CLASS AS THE SUBJECT OF URBAN CULTURE
Authors: Rudi A. Sh.
Published: November 2021

The article presents various levels of urban culture construction. An attempt is made to consider the integrity of urban culture from the standpoint of the sociological theory of the middle class as the owner of human capital. If it is possible to form a single cultural framework of society in the space of stochastic diversity of urban cultures, then it is most likely due to the presence of a middle class that balances the polarized society. The predominant abilities of representatives of the middle class in the creation and development of urban cultural discourse are demonstrated.
“RACES IN SNOW”: SPORTS CONCEPTUAL METAPHORICAL MODEL AS AN APPROACH FOR CONCEPT-IDEOLOGEME “ARCTIC” REPRESENTATION
Authors: Zhigunov A. Yu.
Published: November 2021

The article examines the features of verbalization of the conceptual metaphorical model “The Arctic exploration is a sport” as an approach of the specific content of concept-ideologeme “Arctic” explication. The most frequent formulations related to the concept’s semantics and explicating cognitive sport model are studied. For example, “Race for the Arctic”. An attempt to describe the features of the cognitive phenomenon through the method of metaphorical modeling, as well as to conclude the dominant meanings in its structure is made.
“IMPORTANT” AS SUBJECTIVE MODALITY, ASSESSMENT AND ILLOCUTION (BASED ON SCIENTIFIC AND EDUCATIONAL TEXT)
Authors: Pervukhina V. A.
Published: November 2021

The article considers the category of “important” in terms of the ways of its semantic and pragmatic representation in the Russian language. The expression of this category is realized in statements expressing a timiological assessment, deontic necessity and a motivational type of illocution. The research was carried out on the material of a text standing on the border of scientific and pedagogical discourses — N. S. Bolotnova’s textbook “Philological Analysis of the Text” (section IV). The specifics of the study consists in a consistent analysis of statements containing the category “important” and the allocation of lexical and grammatical means of its expression in Russian speech.
Análisis y consecuencias del modelo económico liberal en Guatemala
Authors: Martínez Cuestas Marco Antonio
Published: November 2021

La presente investigación se desarrolla mediante la utilización de materiales de información documental, que permitieron realizar un análisis del liberalismo económico en Guatemala, partiendo de los principales exponentes y críticos sociales como: Adam Smith, Karl Marx, Herbert Spencer y otros contemporáneos; generando una línea del tiempo de 60 años, hasta lograr finalizar en el modelo liberal actual; así como los resultados obtenidos a raíz del modelo económico liberal en el país, posteriormente como resultado de los acuerdos de paz firmados en el año 1996, dando inicio a una nueva democracia. Además, se presentan los enfoques del liberalismo internacional y la discusión de sus principales características económicas. En este contexto, el problema de investigación se centra en resolver algunos vacíos del conocimiento que permita comprender las estructuras sociales modernas, lo cual conlleva a preguntar ¿Cuál es la situación actual de los procesos históricos del liberalismo en Guatemala? Los indicadores sociales y económicos de Guatemala que describen la evolución del liberalismo en el país, permiten generar un estudio comparativo y la propuesta de un proyecto estratégico nacional. Al finalizar se concluye que el modelo liberal es un fenómeno sustancial que presenta una crisis económica social, debido a la mala utilización de sus preceptos fundamentales, la desigualdad, inequidades económicas, sociales y políticas, presentando una economía tradicional que ignora y empobrece a los individuos de manera material, mental y psíquico; que a pesar de genera extraordinarias ganancias, produce condiciones salariales bajas, con privilegios fiscales particulares y daños al ambiente.
Voto Electrónico con “Blockchain”: La Unión entre la Tecnología y Sociedad
Authors: Lajpop Ajpacajá Kevin Adiel
Published: November 2021

La sociedad ha ido evolucionando en función del crecimiento de la tecnología, por lo que, el complejo comportamiento social se ha visto influenciado por la tecnología, así mismo se ha visto complementado por la misma. Esto no excluye un proceso electoral con la inmersión del voto electrónico, pero la creación de un voto de esta índole no es solo crear un sistema que lleve el conteo de los votos o que permita emitir un sufragio, sino debe de respetar los fundamentos del voto, entre los cuales se puede mencionar que es único por persona, privado y secreto.

Ante todo, este tipo de requerimientos, no todas las arquitecturas de software cumplen con las características tan exigentes del voto electrónico, y una de las tecnologías que llegan a cumplir estos requerimientos es el “blockchain”, dicha tecnología sus fundamentos yacen en la privacidad, seguridad, poder distribuido, entre otras características.
Loose Part Media Menarik dalam Pembelajaran Pendidikan Anak Usia Dini di Masa Pandemi Covid-19
Authors: Priyanti Nina Yuminar , Astria Astria , Maemunah Maemunah , Apriani Dwi , Sandina Sandina
Published: November 2021

Di masa pandemi Covid-19 semua aktivitas dan kegiatan terhenti dan terbatas, terlebih untuk dunia Pendidikan yang membuat para orang tua mengeluh dan kehabisan cara bagaimana mengatasi pembelajaran di masa pandemi ini. Salah satu media pembelajaran yang menarik dan bisa digunakan oleh orang tua di rumah adalah media Loose Parts. Tujuan dari pengabdian ini adalah untuk melihat efektivitas penggunaan media Loose Parts dalam pembelajaran Anak Usia Dini (AUD) di RA Al Mustaqim. Subjek dalam pengabdian ini adalah anak-anak RA Al pada yang berusia sekitar 4-5 tahun dengan jumlah anak 12 orang dengan 5 orang anak laki-laki dan 7 orang anak perempuan. Alat dan bahan yang digunakan adalah barang-barang yang ada di rumah seperti kain, logam, kaca, batu, botol dan lain-lain. Selain itu, untuk media pengiriman dan dokumentasi menggunakan handphone dan aplikasi WhatsApp. Pengumpulan data  pengabdian ini menggunakan data hasil observasi, wawancara dan beberapa dokumentasi. Hasil yang didapat terdapat 92,60% anak yang berkembang sesuai harapan dan 7,40% anak mulai berkembang. Penggunaan media Loose Patrs ini dapat membangun semangat anak-anak untuk tetap bisa belajar di rumah dengan menyenangkan. Serta dapat memberikan kemudahan kepada orang tua dalam menyediakan media pembelajaran di rumah karena menggunakan bahan-bahan yang sangat mudah dan tersedia di rumah.
Implementasi Model Pembelajaran Online di Masa Pandemi Melalui Media WhatsApp di TK Al-Kautsar
Authors: Nurhikmah Nurhikmah , Maemunah Siti , Dalilah Dalilah , Susilawati Yayu , Ningrum Diah
Published: November 2021

Kegiatan pengabdian masyarakat ini bertujuan untuk mengimplementasikan model pembelajaran online di masa pandemi, serta ingin mengetahui faktor pendukung dan penghambat pembelajaran online melalui media WhatsApp pada anak usia 5-6 tahun di TK Al- Kautsar. Data yang diperoleh dari hasil observasi, wawancara serta dokumentasi selama kegiatan berlangsung. Dianalisa dengan menggunakan analisis deskriptif. Hasil pengabdian masyarakat  ini menunjukkan bahwa guru dapat menyampaikan materi pembelajaran melalui media WhatsApp kepada siswa sebagai pembelajaran online serta siswa mendapatkan materi dari guru dan mendapat pengetahuan serta pengalaman baru dari pembelajaran online dengan memakai media WhatsApp. Dapat disimpulkan bahwa implementasi pendidikan online memakai media WhatsApp merupakan salah satu solusi dalam pembelajaran di masa pandemi.