bluuebunny/crossref_metadata_2025 huggingface dataset:
Katarakt cerrahisi geçirmiş olan hastalarda gözyaşı osmolaritesi ve meibografinin değerlendirilmesi
Authors: ASLAN Seray , BAYHAN Hasan , KÜÇÜK Bekir
Published: February 2021

Amaç: Bu çalışmanın amacı katarakt cerrahisi geçirmiş olan hastaların oküler yüzeylerini, gözyaşı osmolaritelerini ve kuru göz parametrelerini değerlendirmek.

Gereç ve Yöntemler: Bu prospektif çalışmada kliniğimizde komplikasyonsuz fakoemülsifikasyon cerrahisi geçiren 80 hasta ve 40 kontrol olgusu değerlendirildi. Olguların gözyaşı kırılma zamanı (GYKZ), Schirmer testleri ve meibografi ölçümlerini içeren detaylı göz muayeneleri yapıldı ve ve osmolarite cihazı (TearLab Corporation) ile ölçülen gözyaşı osmolariteleri kaydedildi. Katılımcılar oküler yüzey hastalık indeksi (OSDI) anketini tamamladılar. Ölçümler kontrol grubu hastalarında 1 kez değerlendirilirken, çalışma grubu hastaları ameliyat öncesi ve ameliyattan 1 ay sonra olmak üzere 2 kez değerlendirildi.

Bulgular: Çalışma grubundaki hastaların (44 erkek, 36 kadın) ortalama yaşı 69,5 ± 8,9 yıl iken, kontrol grubunun (21 erkek, 19 kadın) ortalama yaşı 70,4 ± 9,3 yıl idi (p>0,05). Osmolarite skoru çalışma grubunda ameliyat öncesi ve sonrası sırasıyla 301,5 ± 7,1 mOsm/L ve 309,6 ±7,4 mOsm/L iken kontrol grubunda 300,9±8,3 mOsm/L olarak bulundu (ameliyat sonrası ile kontrol grubu kıyaslanmasında; p=0,008). Çalışma grubunda ortalama GYKZ’ının ameliyat öncesi 11,9±2,1 sn’den ameliyat sonrası 7,5±3,9 sn’ye düştüğü görüldü (p=0,016). Ameliyat sonrası GYKZ değeri ile kontrol grubunun GYKZ değeri (12,3±2,2 sn) arasındaki fark anlamlı idi (p=0,011). Çalışma grubunun ameliyat sonrasında OSDİ skoru anlamlı derecede artarken (p=0,009), Schirmer test skorunun anlamlı değişim göstermediği görüldü (p>0,05).

Sonuç: Katarakt cerrahisi kuru göz hastalığına ve gözyaşı osmolaritesinde artışa neden olmaktadır.
Sunna Gua. Constataciones del alma
Authors:   Universidad Cooperativa de Colombia, León Romero Luis Eduardo , Pérez Gil Paola Andrea ,   Universidad Cooperativa de Colombia
Published: February 2021

After years of ancestral journeys of the human psyche and the development of four transcendental research macroprojects in the field, it is time to undertake the method of ancestral walking on the living system of mother earth and her human son as a verifiable sense of essential nature and substantial of the soul. Method of walking in the loving order of the ancestors, the father and the mother, the cosmos and the earth, the sun and the moon. Co-responsible planting of bridging the integration of the ancestral left hand and the western right hand from the sensible, the construction of mythical thought as great logos, Huitaqa (thought) of the path of the soul (Sunna Gua), of the theory on the radical cosmogonic bases and epistemological of the spiritual foundation and of the individually and collectively mythical, mystical, botanical and ritualistic therapeuticsof the human psyche. Saved the modernist shames, a writing is presented on the proper as philosophy, science and psychology, for this reason, the scope of the present emergence of the quantum in the sacred fabric of a founding myth that recognizes and honors in psychism the evolutionary force of human conscience, an ancestral bet of increases of conscience in the confidence for the power of this soul that is sown fertile for the healing, transformation and evolution towards to the great spirit. What can a reader find in your narrative? Perhaps a sense of the lost and absent not clarified, the great illness of the contemporary psyche, the lack of faith, the absolute loss of confidence in the mythical and sacred presuppositions of the traditions that build culture, for the same reason the urgency of recovery from a stark bridging of law of origin to an ancestral psychology that consolidates such a human pretense of life in the life of the planet.
Ideological illusions, human rights and the right to education: the in(ex)clusion of the poor in post-apartheid education
Authors: Becker Anne , du Preez Petro
Published: February 2021

Against the background of global concern about the political and social consequences of human rights, this article uses an ideological lens to explore the (non)existence of the right to education in South Africa. We argue that post-apartheid education actively (re)normalises the in(ex)clusions of the poor in education within neo-liberal capitalist human rights frameworks. Data from the NRF funded project Human Rights Literacy: A quest for meaning (Roux, 2012) indicate that student-teachers are aware of the ideological illusion presented in the Real and contrasting educational realities. We conclude by arguing for the need to assume common responsibility for the in(ex)clusions of the poor in education. The importance of human rights literacies cannot be underestimated in this regard. Human rights literacies open spaces in which student-teachers in common responsibility can engage with issues such as poverty and in(ex)clusions in education.
Alternativas pedagógicas desde el territorio: praxis colectiva entre Universidad y Enseñanza Media en la periferia de Montevideo
Authors: Cano-Menoni José Agustín , Godoy Carola Patricia
Published: February 2021

Este artículo da cuenta de nueve años de trabajo conjunto entre dos entidades educativas públicas que comparten el mismo territorio de referencia: un centro de enseñanza media (el Liceo 58 Mario Benedetti) y un programa universitario (el Programa Integral Metropolitano de la Universidad de la República [pim]). Ambas entidades están radicadas en la periferia popular del noreste de Montevideo (Uruguay). A partir de este vínculo, desde el 2012 hasta el presente numerosos proyectos educativos han reunido a docentes y estudiantes de ambas instituciones en procesos pedagógicos de inserción territorial. Estas propuestas buscan plasmar una orientación que implica poner a dialogar al centro educativo con su entorno barrial, articulando las asignaturas entre sí y a los profesores y estudiantes del liceo con sus pares de la Universidad. Con base en la reconstrucción de los principales proyectos desarrollados en casi una década de trabajo interinstitucional, territorial e interdisciplinario, el artículo propone una mirada pedagógica a dicha praxis conjunta, acudiendo para ello a referentes teóricos de los campos de las alternativas pedagógicas, la enseñanza de la historia y la extensión universitaria.
Audit in the mechanism of ensuring economic security of an economic entity
Authors: Voronin Valerij P. , Podmolodina Irina M. , Konovalova Elena M. , Maksimova Tatiana I.
Published: February 2021

Importance. The peculiarity of modern audit is the increase in its demand by management entities, the expansion of its accompanying functions as an element of the mechanism aimed at ensuring the economic security of economic organizations of various directions. This demand is due to a number of reasons, the main of which are: the widespread spread of the globalization process to the Russian economy and the associated increased competition between manufacturers in the commodity market and in the market of audit services; the growing trend of Western countries (USA, Canada, EU countries, Japan, etc.) applying economic sanctions to Russian enterprises in violation of the rules of the world trade organization (WTO) solely for political reasons; the growth of economic information, especially with the introduction of the digital economy, which is supported by Western technologies. This blurs the information boundary between audit Analytics and industrial espionage capabilities.Objectives. The article is devoted to the study of the conceptual foundations of the theory of audit as an information tool in the management mechanism, ensuring transparency of competitive access to audit for Russian companies, the nature of the development of audit professional associations, market evaluation of mergers and acquisitions of audit self-regulatory organizations. Methodology. The achievement of these goals predetermined the use of scientific knowledge methods in research: theoretical-dialectical, formalization; empirical – observations, comparisons, systematization, study of current scientific and periodical domestic and foreign economic literature. Conclusions. Assuming that audit is an information element of the mechanism for ensuring economic security, it is important to clearly structure audit activities and the relationship of the state with audit companies, ensuring real competition in the market of audit services and protecting the information space of strategic areas of state activity. Results: the Authors revealed the specifics of mergers and acquisitions in the field of audit activity, the practice of eliminating Russian audit companies from participating in tenders, the vagueness and inconsistency of criteria and their interpretation when selecting the winners of the competition, and proposed an approach based on strengthening the impact of state institutions.
On the issue of control over the procurement of goods, works and services of organizations of the commercial and public sector of the economy
Authors: Golovin Sergey V. , Lutsenko Marina S. , Shendrikova Olesya O.
Published: February 2021

Purpose. For a long time, there has been a tendency to increase the number of violations in the implementation of procurement procedures. Violations of the procurement procedure at enterprises of the public and private sectors of the economy occur at any stage of the process, starting with the tender procedures and ending with the execution of the contract. In this regard, it becomes relevant to exercise internal control over the procurement process in the public and private sectors of the economy. Objectives. In the article, the authors identify the features of the organization of internal control, comparison of the procurement process in the field of goods, works and services in Russian commercial organizations, state corporations and state institutions. Comparative characteristics of procurement procedures in the public and private sectors of the economy. Methodology. In the process of achieving these goals, the methods of scientific knowledge were used: dialectical; analysis and synthesis, comparison. The study is based on the study of current scientific and periodical economic literature. Results. The results of comparing the procurement control procedures in the public and private sectors of the economy allow us to identify important distinctive features of control in the public sector of the economy. Also, based on the practice of procurement activities of state corporations, the main reasons for violations of the legislation in the field of procurement of goods, works and services, as well as ways out of the current situation, are considered. The authors propose measures to monitor the implementation of procurement, which can be carried out in practice by employees of both public and private structures.
Modeling the process of industrial enterprises innovative activity managing
Authors: Vasyaycheva Vera A.
Published: February 2021

Importance. At the present stage of economic development the requirements for the quality of indus- trial structures innovation management have increased as a basis for increasing competitiveness and ensuring high stability of functioning in conditions of instability and crisis. The State program «Scien- tific and technological development of the Russian Federation» identifies key areas for reforming do- mestic enterprises. First of all for its effective implementation it is necessary to modernize the current system of innovation management. The objective of this study is to justify the need to improve the industrial enterprises innovation ac- tivity through digital transformation of the innovation management system, operational management of information resources and the introduction of advanced production and IT technologies. Methods. The practice of researching the innovative activity of modern economic systems shows that it is advisable to consider the process of managing innovative activity from the standpoint of the sys- temic, process and functional approaches that implement the main attributes of cognition – analysis and synthesis. The research is based on modern works of leading domestic and foreign economists. Discussion of results. The formation of a model for the effective innovation process development is the basis for building up scientific knowledge and competitive potential. The active industrial enterpris- es position in the development of innovations creates a stable basis for building the Russian digital economy in accordance with world development trends. Changing conceptual approaches to the gener- ation and processing of large amounts of information will improve the quality of management decisions, the efficiency and effectiveness of innovation, create a flexible system for the industrial enterprises functioning in constantly changing market conditions and mitigate the negative impacts on their inno- vative restructuring. Conclusions and Relevance. The article proposes tools for a systematic solution to the innovation management problems through the use of functional modeling technology IDEF0. Here is presented an approach to modeling the innovation management process based on the structural analysis and design of SADT, based on the integration of digital technologies and business processes of enterprises from the perspective of key principles for the new economy development.
Zebrafish (Danio rerio) Environmental Summary, Aquatic Resources Program, Boston Children's Hospital 2020a v7
Authors: Lawrence Christian , Best Jason , James Althea , Hurley Shane , Shia Mitchel , Urh Michelle , Hirshfeld Brady , Bakker Nina , Perdomo Hugo , Krueger Aaron
Published: February 2021

Environmental and housing conditions experienced by laboratory animals exert profound effects on their biology, physiology, and behavior. These parameters are important and often overlooked sources of potential variation in experiments, and should be reported in peer-reviewed publications in order to promote scientific reproducibility. To that end, here we provide a summary of the environmental conditionsin zebrafish (Danio rerio) aquaculture facilities at Boston Children's Hospital (BCH). We include data on the physico-chemical, health, and nutrition of zebrafish in three separate facilities at BCH: Karp, Enders SSB, and Enders Lobby. In this year's version, we also include new information on our feeding practices and colony pathogen history. This information will be applicable to any study involving zebrafish conducted in one of these three facilities during the year of 2020.
Kahramanmaraş Sütçü İmam Üniversitesi Tıp Fakültesi Çocuk Acil Servisine Ocak 2013-Haziran 2017 Yılları Arasında Zehirlenme Nedeniyle Başvuran Hastaların Demografik Olarak İncelenmesi
Authors: ÖZASLAN Mehmet Mustafa , TEMİZ Fatih , ACIPAYAM Can , SERİNGEÇ AKKEÇECİ Behiye Nurten , DALKIRAN Tahir
Published: February 2021

ÖZET ABSTRACT

Amaç: Çocuk Acil Servisi’ne zehirlenme nedeniyle başvuran hastaların demografik özelliklerini inceleyip alınabilecek önlemleri belirlemektir.

Gereç ve yöntem: Çalışmada Ocak 2013- Haziran 2017 tarihleri arasında Kahramanmaraş Sütçü İmam Üniversitesi Sağlık Uygulama ve Araştırma Hastanesi Çocuk Acil Servisi’ne zehirlenme nedeniyle başvuran 300 hastanın bilgileri dosyalarından incelenmiştir. Hastalar yaş, cinsiyet, zehirlenme etkeni, zehirlenme saati gibi parametrelere göre sınıflandırılmıştır.

Bulgular: Çalışmaya önceden belirlenen kriterlere göre 300 hasta alınmıştır. Zehirlenme vakaları tüm acile başvuruların % 0.37’sini oluşturmaktadır. Olguların 146 (% 48,7)’si kız, 154 (% 51,3)’ü ise erkektir. Tüm zehirlenme olguları arasında cinsiyet açısından fark saptanmamıştır. Olguların 239 (%79,67)’si kaza sonucu, 61 (% 20,33)’ü ise intihar amaçlı zehirlenmelerdir. Tüm zehirlenme olguları arasında kaza-intihar açısından fark saptanmıştır. Vakalar zehirlenme etkenine göre farmakolojik ve non-farmakolojik olarak iki gruba ayrılmıştır. 90 hasta (%30) farmakolojik ajanla, 205 hasta (%68,3) non-farmakolojik bir ajanla zehirlenmiştir. 5 vakada (%1,7) zehirlenme etkeni saptanamamıştır. Zehirlenmeye neden olan farmakolojik ajanlardan ilk 3 sırada; Parasetamol (%4.0), çoklu ilaç alımı (%3.3), SSRI grubu antidepresan ilaçlar ve (%2.7) yer almaktadır. Non-farmokolojik ajanlardan en sık görülen 3’ü sırasıyla karbonmonoksit (%27.2), kostik-koroziv maddeler (20.3), Maraş otu (%4) şeklinde sıralanmaktadır.

Sonuç: Çocuklarda farmakolojik ve non-farmakolojik ajanlar tek tek incelendiğinde zehirlenmelerin en sık nedeninin ilaçlar olduğu ortaya çıkmıştır. Ailelerin bu konudaki farkındalıklarının artırılması ve önleyici tedbirlerin alınmasının zehirlenmeleri azaltacağı düşünülmektedir.

Anahtar Kelimeler: Zehirlenmeler, Çocukluk çağı, Demografik özellikler

Objectıve: Inourstudy, it wasaimed to determine the precaution scould be taken by examining the demographic characteristics of patients who admitted due to poisoning.

Material and Methods: Inourstudy, we examined informations from the files of 300 patients who referred to Kahramanmaraş Sütçü İmam University Faculty Health Application and Research Hospital Pediatric Emergency Depertmandue to poisoning between January 2013 and June 2017.

Results: Patients were classified according to parameters such as age, sex, poisoning effect and poisoning time.300 patients were included in the study according to pre-determined criteria. The poisoning constituted 0.62% of allurgent patients. Out of our 300 patients, 146 (48.7%) were female and 154 (51.3%) weremale. There was no difference in gender between allcases of poisoning. Inourcases, 239 (79,7%) were accidental while 61 (20,3%) were suicide poisonings. There was a difference between accidental and suicidal cases of poisoning (p
Postmagmatic tectonics of basement granites of the Far Eastern seas of Russia
Authors:   Russian State Geological Prospecting University, Moscow, Russia, Kerimov V. Yu. , Mustaev R. N. ,   Russian State Geological Prospecting University, Moscow, Russia, Guryanov S. A. ,   Russian State Geological Prospecting University, Moscow, Russia, Leonov M. G. ,   Geological Institute, Russian Academy of Sciences, Moscow, Russia
Published: February 2021

The article contains the results of tectonogeodynamic paleoreconstructions and numerical spatio-temporal basin modelling, which allowed to reveal the structural features and formation conditions of the base of the Far Eastern seas of the Russian Federation, as well as the occurrence of crystalline protrusions in the pre-Cenozoic bases at the stage of prototectonics and posthumous tectonics, which are primarily due to heterogeneity of the viscous properties of various layers of the earth’s crust, i.e. its tectonic and material stratification. A large-scale lateral redistribution of the substance, its outflow out of the areas of increased compression and injection into areas of geodynamic shelters has taken place at this stage. Mechanisms of the formation of a void space within protrusions have been considered. A conceptual model of the formation of petroleum deposits within the granite massifs of the base has been proposed.
Classification of protective pillars toward higher safety and innovation in room-and-pillar coal mining
Authors:   Tomsk Polytechnic University, Tomsk, Russia, Prokopenko S. A. , Sementsov V. V. ,   Science Center VostNII, Kemerovo, Russia, Dobrovolsky M. S. ,   Science Center VostNII, Kemerovo, Russia, Nifanov E. V. ,   Science Center VostNII, Kemerovo, Russia
Published: February 2021

During room-and-pillar mining, protective pillars of coal are usually left standing. The protective pillars differ in shape, size, process properties and extractability ratios of coal. The authors propose a classification of the protective pillars with respect to their structure and shape in order to estimate and predict their properties. The extractability ratios of coal are calculated for the initial rib pillars and panels at different final shapes of protective pillars. The protective pillars are ranked with respects to the coal extractability ratios. Such systematization of pillars enables selecting the best engineering solutions and innovative improvement of room-and-pillar mining in specific geological conditions toward enhanced safety and efficiency of underground coal production. The article is prepared in the framework of the Competitiveness Enhancement Program of the Tomsk Polytechnic University.
Improvement of a treatment processes of high-clayey gold-bearing placers
Authors:   Khabarovsk Federal Research Center of the Far Eastern Branch of the Russian Academy of Sciences (KhFRC FEB RAS), Khabarovsk, Russia, Khrunina N. P.
Published: February 2021

Characteristics of the placers with increased clayiness of gold-bearing bed and high content of fine and thin gold of the Far Eastern region, as well as technological approaches to processing, including the main process – disintegration, are analyzed. It is established that a reagentless gravitational working up based on generation of acoustic vibrations in fluid media is promising and requires its development. Energy-dispersive microanalysis by means of a scanning electron microscope, phase analysis using a diffractometer, as well as granulometric, dispersed and acoustic analyses have been applied to clay conglomerates selected at a high-clayey section of the deposit under consideration on the Malaya Nesterovka River in Primorskyi Krai. The presence of a wide range of noble metals, including gold and silver, rare earth and other elements was revealed. The data obtained on the composition and properties of clay conglomerates made it possible to determine the need for a more intensive process of the sand micro-disintegration to extract fine and thin particles of valuable components based on expanding the use of gravity technologies. It is noted that the known technologies would not ensure effective extraction of valuable components. A gravitational technology with cavitation reactors, which provide a power inputs reduction by several times in comparison with known devices, is proposed and validated. The hydrodynamic generator design is developed based on the concept of the fluid flow kinetic energy converting into the energy of hydroacoustic vibrations and jet streams of mineral hydromixtures in constrained conditions taking into account the similarity theory in modeling the cavitation processes. The proposed technology will reduce in-process losses of precious and other valuable metals, increase profitability and environmental safety in comparison with known processes.
Mineral composition and commercial application feasibility of sericite ore in Ha Tinh Province
Authors:   National University of Science and Technology—MISIS, Moscow, Russia, Yushina T. I. , Dumov A. M. ,   National University of Science and Technology—MISIS, Moscow, Russia, Nguyen Van Chon ,   National University of Science and Technology—MISIS, Moscow, Russia, Nguyen Thu Thuy ,   National University of Science and Technology—MISIS, Moscow, Russia
Published: February 2021

Sericite is a silicate mineral, a finely disperse and partly hydrated variety of muscovite. It is widely applied in many areas of engineering and production, and has a high economic value. Sericite has been produced and used in the world for a few hundred years. In Vietnam, a new-discovered sericite deposit holds commercial quality reserves. This article presents the studies into the mineral composition of sericite ore from Ha Tinh deposit using a set of the modern analytical techniques, which prove efficiency of the commercial-level production and processing of this ore. The integrated studies into material constitution of Ha Tinh sericite ore show the uniform structure of sericite and insignificant content of unwanted impurities. The size of sericite particles markedly differs from the size of other minerals in the initial ore. The content of quartz gradually increases with increasing size of ore particles, while the content of sericite gradually grows with decreasing size of particles. In particularly, in very fine particles (size less than 10 μm), the content of sericite is higher than in the initial ore by 2 times and reaches 70%, while the content of quartz is 4 times less than in the initial ore. Impurities feature nonuniform distribution and occur in some mineral grains such as apatite Ca5(PO4O)3, iron oxides and binding particles of solid solutions. During ore processing, impurities can be separated to waste, and it is possible to produce a marketable product in the form of a high quality sericite powder which meets the application standards of the porcelain, ceramic, resin and other industries. Thus, Hà Tĩnh sericite ore can be converted into valued products to be used in many various industries.
Effect of vibrating feeder pan geometry on radiometric separator performance
Authors:   Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, Russia, Tereshchenko S. V. , Shibaeva D. N. ,   Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, Russia, Shumilov P. A. ,   Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, Russia, Vlasov B. A. ,   Mining Institute, Kola Science Center, Russian Academy of Sciences, Apatity, Russia
Published: February 2021

The article offers justifies the optimized shape for the vibrating feeder pan of a radiometric separator, which ensures the maximum travelling speed and uniform flow of ore material in the zone of radiation and recording. Three shapes of pans are discussed: rectangular, parabolic and triangular. It is found that motion of ore material along an inclined rectangular-shape pan is straight-linear. Distribution of ore particles along the width of the channel, which governs the scatter of the motion trajectories relative to the central axis of the channel, depends on the runoff point of particles from the outlet feeder. Proposed for the description of the motion trajectory of ore particles along an inclined channel of parabolic shape, the mathematical model demonstrates the curved and pendulum-wise motion of an ore particle with the attenuating amplitude. The motion of an ore particle in an inclined pan with the triangular-shape channel features the minimized scatter of motion trajectories relative to the central axis of the channel. The analysis of ore motion along vibrating feeder pans with different shape channels is carried out in Rocky DEM environment with regard to interaction of ore particles with the pan surface and with each other. The simulation modeling has proved the conclusions on the efficiency of the triangularshape profile of the vibrating feeder pan as it ensures uniform single-row flow of ore particles along the straight-line trajectory. The triangular shape of the pan contributes to the increased travelling speed of ore particles and, accordingly, to the enhanced capacity of the separator. The radiometric separator efficiency can be increased 1.5 times by changing from the parabolicshape channels to the triangular-shape profiles of vibrating feeder pans at the other operating conditions of radiometric separators being equal.
Remote sensing of mining and haulage equipment arrangement in Russia: A case-study of the coal and iron ore industry
Authors:   Siberian Federal University, Krasnoyarsk, Russia, Zenkov I. V. , Morin A. S. ,   Siberian Federal University, Krasnoyarsk, Russia, Vokin V. N. ,   Siberian Federal University, Krasnoyarsk, Russia, Kiryushina E. V. ,   Siberian Federal University, Krasnoyarsk, Russia
Published: February 2021

Remote sensing data have allowed detecting and monitoring of arrangement of mining and haulage machines in open pit mines producing coal and iron ore in Russia. In coal mining, the highest concentration of mining and haulage equipment is revealed in open pit mines in Kuzbass; in the iron ore industry, open pit mines in the Belgorod and Kursk Regions operate 70% of the total equipment employed in the mining sector. The authors draw a conclusion on the essentiality of strengthening of in-house mining machine engineering in Russia and on creation of interregional centers for maintenance and repair of mining and haulage equipment.
The concept of digital twins for tech operator training simulator design for mining and processing industry
Authors:   Saint-Petersburg Mining University, Saint-Petersburg, Russia, Beloglazov I. I. , Petrov P. A. ,   Saint-Petersburg Mining University, Saint-Petersburg, Russia, Bazhin V. Yu. ,   Saint-Petersburg Mining University, Saint-Petersburg, Russia
Published: February 2021

According to the top-priority trends and challenges in the mineral sector, and as per the mining science strategy, it is highly critical to arrange enhanced control, prediction and safety of production objects and their functioning for the preservation of automation sustainability. Improved control of databases, regulatory bonds, management, logistics and principles of sustainable development in mining makes it possible to reduce technological deviations and accidents at large mining and processing plants. Most procedural violations and accidents in surface and underground mines occur because of the unskilled actions of process flow operators. Damage in this case can be considerable, especially as compared with the expenses connected with qualitative training and persistent development of personnel engaged with supervisory control and data acquisition for the efficient operation of SCADA-systems within the automation framework of mining and processing plants. Definition of digital systems and their interrelation with multilevel automated control can be incorrect. The review of new principles can awaken interest in the conceptual assessment of digitalization processes using such notions as: numerical models, simulator, and artificial intelligence. Often applied formulations and principles of a digital model are substituted without justification of functional connections. On the other hand, a digital system today can be assumed as robotic lines and other numerical models and smart technologies, for instance, machining stations with numerical program control. It is necessary to define the practical significance of conceptual modifications and digital transformation regarding objects of the mineral sector, using Big Data; to understand how a digital twin can influence a changeable process situation; to provide prompt prediction; to eliminate an accident; and to preserve the physical balance in the whole production system. Such intelligent and flexible productions particularly need computerbased simulators and digital twins based on technologies of Industry 4.0–extended and virtual reality on the basis of digital twins. Digital twins allow maximal simulation of real-life activity of process flow operators. The skills acquired by personnel after such simulation training enable operators to master the optimized procedure for functioning in emergency situations in mineral mining and processing. This paper exemplifies the remote training and control of process flows, which is of concern in the current international situation.
Multifunction walking roof support for underground mining of stratified deposits and placers
Authors:   Federal Research Center for Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia, Nikitenko M. S. , Malakhov Yu. V. ,   Federal Research Center for Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia, Kizilov S. A. ,   Federal Research Center for Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences, Kemerovo, Russia, Zhuravlev S. S. ,   Institute of Computational Technologies, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Published: February 2021

The article shows the urgency of technological advance in coal mining in difficult geological conditions and describes the application prospects for an integrated multi-function platform in underground mining of different minerals. The international practice of mobile roof support design and creation of a work environment in mines is reviewed. The authors propose an integrated multi-function platform as a walking roof support module which ensures safe and efficient mining in difficult geological conditions. Within R&D project supported by the Foundation for Assistance to Small Innovative Enterprises in Science and Technology, Project No. 2566GS1/41340, the kinematics of the platform is developed so that to ensure uniform loading of the walking support systems owing to constructional linkage between the support units, and to provide stability of the support system on a composite topography floor thanks to four couples of hinge supports with adjustability of height and position. Arrangement of structural elements is proposed, and their kinematic linkage is described. The walking support advance algorithm is developed in the form of a working cycle. Within R&D project supported by the Russian Foundation for Basic Research, Project No. 18-37-00356, the control operation algorithm and control automation circuit are developed for the walking roof support. The automated control is integrable in the standard electrohydraulic control system of mine roof supports. As a result, the walking roof support with the automated control can be considered as a framework (a platform solution) for the robotic system engineering for safe and efficient underground mining of stratified deposits and diamond placers. The study was supported by the Russian Foundation for Basic Research, Project No. 19-35-90075-19.
Spiritual and moral bases of psychological safety of mining-students
Authors:   Moscow State University of Psychology and Education, Moscow, Russia, Koteneva A. V. , Chelyshev P. V. ,   National University of Science and Technology “MISIS”, Moscow, Russia
Published: February 2021

Psychological safety of a specialist’s personality in stressful situations is a condition of his successful professional work. The empirical study is devoted to the investigation of personal qualities (stress resistance, religiosity and moral stability) underlying the psychological safety of future miners. The research involved 52 students aged from 18 to 25 years (average age – 19.9 years), 30 males and 22 females. Research methods: “Diagnostics of personality’s psychological safety” by I. I. Prikhodko, “Questionnaire of religiosity” by I. S. Shemet, “Friend-adviser-1” (DS-1) by E. K. Veselova, “Questionnaire of psychological resistance to stress” by E. V. Raspopin, “Psychological stress scale PSM-25” by Lemur-Thesier-Fillion. Academic success was assessed on the basis of students’ academic performance. Methods of mathematical statistics were used for data processing – T-criterion for independent samples, correlation and multiple regression analysis. The results of the study show that young men are characterized by a higher level of overall safety index and its specific components-motivational, volitional and internal comfort, as well as a lower level of stress, moral stability than young women. Significant positive connections between psychological safety of the person, all its components and stress resistance among students are revealed. Religiosity is significantly associated with the motivational and volitional characteristics of students, and is also the main predictor of psychological safety of the individual in life situations that exceed their own resources of coping with stress. Moral stability provides spiritual safety of personality, allows to keep the deep personal beginning of man. However, in a situation of moral choice, it increases students’ mental tension which negatively affects academic performance, while the psychological safety of the person is a condition for successful completion of the session. This work was supported by Russian Science Foundation № 19-18-00058.
Classification of the Agricultural Crops Using Landsat-8 NDVI Parameters by Support Vector Machine
Authors: ACAR Emrullah , ALTUN Müslime
Published: February 2021

Along with the data obtained from the developing remote sensing technologies, the use of machine learning techniques is widely employed in classification at a more effective and precise level. In this study, support vector machines (SVM) technique, one of the machine learning approaches, was utilized with the help of data obtained from satellite image, and it was aimed to classify agricultural products. Moreover, lentil and wheat products were employed for object detection, and Landsat-8 satellite was preferred as satellite imagery. In order to determine the plant indexes in the image, Landsat-8 image of the development period of agricultural products dated May 6, 2018 was used and 98 sample points were taken with the help of GPS on the pilot area. After that, the position of these points were transferred to Landsat-8 satellite image employing the QGIS program and NDVI values were calculated from these points, which corresponds to Landsat-8 NDVI image pixels. The obtained NDVI values were then utilized in the SVM as inputs. As a result, the accuracy of the overall system for crop classification on the pilot area was computed as 83.3%.
FORMATION OF FUTURE TEACHER'S READINESS TO RESEARCH ACTIVITY AS A PEDAGOGICAL PROBLEM
Authors: Holovko N. , Balashova S.
Published: February 2021

The article deals with theoretical aspects of formation of readiness of the future teacher for pedagogical research activity. To our mind research skills mean analytical-synthetic, informational, creative and prognostic skills, which integrate with the focus on research activities and personal qualities of the individual, provide its effective search-and-transformative activity in educational process.
EMOTIONAL INTELLIGENCE OF FUTURE TEACHERS FOR PREVENTION OF PEDAGOGICAL CONFLICTS
Authors: Koshechko N.
Published: February 2021

The article analyzes the actual ideas on the problem of practical training of future teachers. Such training consists in mastering students' knowledge, skills and skills in the prevention of pedagogical conflicts in higher education, which have always been constant companions of social life. It was through such contradictions that new progressive ideas were born that ensured the further evolution of institutions of higher education. For the professional activity of the future teacher, the developed communication skills that are interconnected with his emotional intelligence, which determines the success of teaching, are extremely important.
Emotional intelligence in the unity of its structural components (cognitive, affective and behavioral) is based on the management of the emotional sphere, its reflection and understanding. A high level of emotional intelligence ensures the success of an individual's activity: the ability to adequately express his or her emotions, to understand the emotions and motives of other people's behavior, the ability to act effectively in the system of interpersonal relationships, the ability to navigate social situations, to correctly identify the personality traits and emotional states of other people, to choose the appropriate ways communicate with them and realize all this in the process of interaction.
The notion of the progress of a modern student as a competitive subject of future professional activity is connected with the ability to interact with a professional society, to manage their emotional sphere and, accordingly, relations with the subjects of joint activity. A high level of emotional intelligence is extremely important in stressful situations, which becomes a necessary component of making responsible decisions. The contents, historical aspect, different models, the description of the emotional intelligence of future teachers are considered in detail. The recommendations for prevention of pedagogical conflicts in the context of emotional intelligence are generalized.
PROBLEMS AND PROSPECTS OF KNOWLEDGE ECONOMY FORMATION IN THE POST-INDUSTRIAL ECONOMY
Authors: Trofimova N. N.
Published: February 2021

The article deals with topical issues of knowledge economy formation in the conditions of post-industrial society development. Using the author's approach based on system analysis, the directions of development of the knowledge economy are determined, and the main characteristics of the knowledge economy are clarified. The scientific novelty and practical value of the article lies in the fact that the author identified the main problems caused by the development of the knowledge economy and proposed promising ways to eliminate them.
INVESTMENT ATTRACTIVENESS: ESSENCE AND APPROACHES TO ASSESSMENT
Authors: Bondareva T. B.
Published: February 2021

This article is devoted to the consideration of the concepts of "investment climate", "investment attractiveness", a review of factors and characteristics, analysis of methods for assessing the investment attractiveness of companies.
NON-TRADITIONAL DRAWING TECHNIQUES FOR THE DEVELOPMENT OF IMAGINATION FOR STUDENTS WITH MILD MENTAL DISABILITIES
Authors: Rozenfelde Marite , Bogurdovicha Svetlana , Teresko Aija
Published: February 2021

Imagination development for pupils with mild mental disorders requires special attention and special pedagogical approach, because independent and creative thinking skills, initiative of creative activity cannot develop by itself; it is not a side effect of knowledge acquisition, it needs to be promoted and activated. The paper raises the issue of the importance of imagination development and opportunities for pupils with mild mental disorders during extracurricular activities, using non-traditional drawing techniques. The paper provides information about the collection of non-traditional drawing techniques developed and approbated by S. Bogurdovicha.
Determination of lithium content in solids by nuclear reaction technique
Authors:   M.N. Miheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Vykhodets V. B. , Kurennykh T. E. ,   M.N. Miheev Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Nikolaev A. Yu. ,   Institute of High-Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, Suzdaltsev A. V. ,   Institute of High-Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences, Zaikov Yu. P. ,   Institute of High-Temperature Electrochemistry, Ural Branch of the Russian Academy of Sciences
Published: February 2021

The acceleration method of nuclear reactions is used to measure the content of lithium and oxygen in zirconium oxides. The purpose of the study stems from the fact that there are no direct methods for determining lithium concentration in solids, while lithium is currently widely used for alloying alloys in aircraft construction, nuclear power engineering, electrochemical devices, and other fields of technology. It is shown that satisfactory metrological characteristics of the method are provided when using the 6Li(d, p0)7Li and 7Li(d, p)8Li reactions at a deuteron energy of 650 keV.
Fracture behavior of cellular structures obtained by selective laser melting
Authors:   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Kamantsev I. S. , Loginov Yu. N. ,   B.N. Yeltsin Ural Federal University, Belikov S. V. ,   B.N. Yeltsin Ural Federal University, Stepanov S. I. ,   B.N. Yeltsin Ural Federal University, Karabanalov M. S. ,   B.N. Yeltsin Ural Federal University, Golodnov A. I. ,   B.N. Yeltsin Ural Federal University
Published: February 2021

An example of samples with a cellular architecture, obtained by selective laser melting, is used to study the influence of the building direction of cellular objects on the characteristics of fracture under cyclic loading. The origin of their fracture has been revealed. The mechanism providing increased fatigue fracture resistance of objects which, along with the cellular structure, have anisotropy of properties due to the technological features of their production has been determined.
Studying the stratification of hydrodynamic fields for laminar flows of vertically swirling fluid
Authors:   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Burmasheva N. V. , Prosviryakov E. Yu. ,   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences
Published: February 2021

The article proposes an approach to estimating the number of stratification points in hydrodynamic fields. The article provides a method allowing one to estimate from above the number of zero points of hydrodynamic fields (points and stratification zones). The application of the proposed methodology is illustrated by several examples of the analysis of the exact solution to the problem of describing steady laminar flows of a viscous incompressible fluid in an infinite horizontal layer. In example 1, convection is induced by setting the shear stress field at one of the layer boundaries. The features of the background temperature profile, which is a seventh-degree polynomial, are discussed. It is shown that this component of the temperature field is a nonmonotonic function and that the obtained exact solution for the temperature field can describe the stratification of the considered fluid layer into one, two or three zones relative to the reference value. Example 2 illustrates evaluating the number of the zero points of the velocity field components in a vertically swirling fluid, in which convective flows are initiated by thermocapillary forces at the upper boundary of the layer. The exact solution studied in this example is a sixth-degree polynomial, which can have at most two zeros inside the region under consideration. This means that this exact solution is able to describe the stratification of the fluid layer into three zones, in each of which the test speed takes values of the same sign.
A precision low-frequency Analog-to-Digital converter for advanced systems of technical diagnostics and nondestructive testing
Authors:   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, Lukin N. A. , Rubin L. S. ,   Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences
Published: February 2021

The main results of the development of a precision low-current meter based on a nonlinear ADC are presented. It is shown that the application of the method of nonlinear analog-to-digital conversion and a controlled voltage level at the non-inverting input of an integrating operational amplifier allows both high sensitivity and a wide dynamic range with a small spread of output codes. The use of the laboratory sample of the meter for cyclic tensile testing of steel specimens is described.
Formation of a system of indicators for evaluating the characteristics of asynchronous electric motors at their life cycle stages
Authors:   Smolensk Branch of the National Research University “Moscow Power Engineering Institute”, Kurilin S. P. , Sokolov A. M. ,   National Research University “Moscow Power Engineering Institute”
Published: February 2021

The article focuses on the development and formation of a system of indicators for assessing the characteristics of asynchronous electric motors (AEMs) at various life cycle stages. The problem is solved on the basis of the topological approach to the analysis of heterogeneous electromechanical systems. The life cycle of AEM and the tasks of its information support are described. The flows of diagnostic information are analyzed. Indicators for assessing the health of AEDs at various stages of their life cycle are proposed.