bluuebunny/crossref_metadata_2025 huggingface dataset:
Sistem Informasi Dalam Hubungan Prinsipal – Agen Di RSU-BLUD Bahteramas, Kota Kendari Provinsi Sulawesi Tenggara
Authors: Abidin Zainul
Published: April 2021

This study aims to analyze the information systems that occur, especially in terms of reporting procedures, budgeting systems and the role of the supervisory board at the Bahteramas Hospital, Kendari City, Southeast Sulawesi Province. This research uses a qualitative approach. The results show that the reporting procedure uses a combination of computers and manuals, but manual systems are still dominant. The budgeting system still uses conventional systems and also uses performance-based budgets. The supervisory board has carried out its duties, but it is still not optimal. Even so, there is complete information where the principal knows what the agent is doing. Even though in reality, there are still agency problems (moral hazard and adverse selection) both potentially and factually. For example, negligence in the supply of drugs, but on the whole does not hinder the disclosure of information by the principal.
Iklim Komunikasi Berbasis Kearifan Lokal Studi Kasus Di Pusat Pelatihan Dan Pengembangan Dan Pemetaan Kompetensi Aparatur Sipil Negara LAN-RI Jatinangor
Authors: Almha Restie , Abdillah Wawan Setiawan , Umam Khaerul
Published: April 2021

This journal discusses the climate of communication of local wisdom-based organizations in Puslatbang PKASN LAN-RI Jatinangor. Especially the application of the value of local wisdom in the organizational communication climate at the PKATN LAN-RI Jatinangor Puslatbang. The purpose of this research is to find out how Climate Communication of Local Wisdom-based Organizations in PKlatN LAN-RI Jatinangor, to find out the barriers that occur in the climate of communication of local wisdom-based organizations in PKlatN LAN-RI Jatinangor, and find out the efforts made to overcome obstacles in climate communication of local wisdom-based organizations at the PKATN LAN-RI Jatinangor Puslatbang. The study was conducted using the case study method with a qualitative approach. Data collection techniques using interview techniques and study documentation. The results of this study are that the climate of organizational communication based on local wisdom is not yet optimal in terms of the delivery of written information that is difficult for members to understand. And the lack of attention to ethics and valuesthat apply, especially in the achievement of ideas, ideas or information.
Investigation of the Physicochemical, Organoleptic and Dietary Properties of Trout Fermented Sausages through Probiotic Strains and Fat Replacer
Authors: Sadeghi Aghdas , Hakimzadeh Vahid , Salehi Esmaeil , Rashidi Hasan
Published: April 2021

Decrease in nitrosamine and optimal smell and flavor gives credit to such meat products as fermented sausages for their considerably optimal storage period and better nutritional values. Replacing red meat with fish and using fat replacer and probiotics in such products have played a great role in the production of such a highly functional food. Therefore, the focus of this study is mainly on the production of fermented trout sausages applying lactobacillus Rhamnosus and Plantarum, substituting part of its fat with inulin (2% of the total fat of the formulation) while examining the physicochemical, textural, dietary, and sensory properties and comparing with control sample, too. The effect of the inulin present in formulation, the type of probiotic strains, and life time (30 days) influencing the physicochemical and textural properties and nitrosamine samples were compared in three ten-day periods as independent valuables completely randomized factorial design. Sensory evaluation was also performed at the end of the 30-day maintenance period. Results suggest that samples with inulin content have experienced less moisture loss during storage. Little fat was also observed in probiotic content samples at the end of the storage. The pH value in the probiotic samples, as compared to the control sample, shows more decline. Inulin content samples caused a marked decline in lightness and an increase in redness. Meanwhile, probiotic presence has caused more declines in lightness intensity in samples. Inulin content samples show more hardness as compared to high fat samples and the probiotics present after pH decline to isoelectric point caused an increase in intensity and hardness of protein fibers. Simultaneously, along with an increase in fat, cohesiveness increased. Nitrosamine content in probiotic samples was lower than the one in test sample much as there was an increase seen in all samples. Despite a little more odor being present, sensory analysis was in favour of the test samples. Other samples demonstrated little difference in sensory evaluation.
PURIFICATION OF WATER-ALCOHOLIC MIXTURE WITH MODIFIED NATURAL MATERIALS
Authors: Oliinyk S. , Tarasyik L. , Samchenko I. , Kuts A. , Dulka O.
Published: April 2021

The aryticle presents the results of theoretical and experimental research on improving the technology of purification of water-alcohol mixture with natural modified minerals for the production of vodka. The methods and main filtering materials used in alcohol technology have been considered, the inefluence of natural efficiencies of modilification has been determined. Methods for determining physicochemical parameters, cationic-anionic composition of the sort, method of modification of natural obsidian and natural zeolite clinoptilolite are described. The paper presents the main unit specific costs of hydrochloric acid solution for removal from the surface of ash elements and limestone inclusions, drinking water and prepared for washing material, water-alcohol mixture to establish an equilibrium strength value to prevent dilution of the sort. The influence of modified natural materials on physicochemical parameters and cationic-anionic composition of sorting before and after its purification by modified obsidian and clinoptilolite in comparison with quartz sand is shown. Achieving a positive effect of cleaning and improving the transparency of sorting in the technology of filtration with modified natural minerals. The predicted resistance to changes in the physical and chemical parameters of the sorting after its aging in critical conditions and the control sample and the array of parameter stock to the critical limit is determined. It was found that filtering the sort with modified obsidian allows to increase the shelf life by two months, modified clinoptilolite - by 4 months. Modification of natural obsidian and clinoptilodite allows for reduced specific consumption of hydrochloric acid and prepared water in preparation for the main cycle to increase filtration efficiency by 10-15% and get vodka with higher transparency by 0,1-0,2 units and improve the microcomponent composition of the finished vodka
STATE AND PROSPECTS OF PROCESSING OF SECONDARY RAW MATERIALS OF WINE-MAKING IN UKRAINE
Authors: Osipova L. , Radionova O. , Tkachenko L. , Abramova T.
Published: April 2021

The analysis of the current state of processing of secondary raw materials of wine-making in Ukraine is given. It is proved that the latter is a rich source of biologically active compounds, including phenolic ones, which makes it possible to use it for the production of a wide range of products (raccoon, polyphenol extracts, tartaric acid, beverages, fertilizers, grape oil, cake, vitamin D, animal feed, food powder, abrasives) with high consumer value for various industries: food, pharmaceutical, perfume and cosmetics, chemical, feed, etc. In the light of modern research, the role of phenolic compounds as essential nutrition factors that cannot remain out of the field of view of physiologists, pharmacologists, and food hygiene specialists is shown. However, currently in Ukraine there are no specialized enterprises for complex processing of secondary raw materials of winemaking; traditional technologies are not effective from a technological, economic and environmental point of view, which indicates not rational use of resources and loss of material resources; there are no systematic studies on physical and chemical, microbiological, Toxicological composition in order to determine the optimal direction of its use. A limiting factor is also the lack of comparative analysis of innovative domestic and foreign technologies for processing secondary raw materials of winemaking. In the vast majority of cases, in particular, combs and pomace are taken out of control to agricultural land without special treatment, which leads to acid soil erosion and pollution of the environment with metabolites of micromycetes, increasing one of the global problems of mankind-environmental. At the present stage of technological development, there are a number of innovative developments in the field of processing secondary raw materials, in particular grape pomace, in order to obtain biologically active additives, the limiting factor for the introduction of which is the lack of domestic and expensive imported equipment. A promising way to solve the existing problems is to create a mechanism that will unite the interests of wineries (producers of secondary raw materials of winemaking), processing enterprises (producers of products from secondary raw materials of winemaking), scientists and potential consumers of innovative products. Consolidation of the above-mentioned institutions and enterprises is possible by creating clusters for the development and implementation of innovative technologies and equipment
THE INVESTIGATION OF THE PENETRATION OF MICROELEMENTS OF A DIETARY SUPPLEMENT IN CRUCIAN MEAT BY VARIOUS METHODS OF SALTING
Authors: Golovko M. , Golovko T. , Pak A. , Krykunenko L.
Published: April 2021

The expediency of improving the technological methods of processing unprofitable small fish and expanding the range of food products from them is substantiated. It is proposed to enrich the meat of freshwater fish with trace elements by adding to salt or brine during the salting of raw materials dietary supplements based on chelate complexes. The kinetics of penetration of micronutrients of a dietary supplement based on a chelate complex into the muscle tissue of crucian carp was studied by electronic paramagnetic resonance. The ambassador was held in three ways. According to the first dry method of salting, the fish was mixed with sodium chloride NaCl with the addition of a dietary supplement based on a chelate complex in the amount of 20… 25% and 0.1% by weight of raw materials, respectively. According to the second brine method, the fish was salted in brine, which was a solution of sodium chloride NaCl in the amount of 2 kg of salt per 1 kg of raw material. The amount of dietary supplement based on the chelate complex was 0.1% by weight of raw materials. According to the third method, the ambassador was carried out in brine with the same concentrations of sodium chloride and dietary supplements, but previously the fish raw materials were treated with ultrasound. Salting of fish was carried out for 6 days.
The distribution of Mn ions in the plane (i, j) is investigated. The kinetics of the penetration of a microelement into the volume of crucian muscle tissue was studied by the EPR method. The kinetics of Mn2 + ion distribution in the studied muscle tissue samples and the tomogram of these surfaces were determined. The values of the area under the EPR spectra are normalized to the values of the area under the maximum EPR signal. For the maximum EPR signal for dry pickling, the signal from the liquid in which the raw material was during salting, and during the brine - the signal from the brine sample was selected.
It is noted that the kinetics of penetration of the trace element is determined by the area of contact of the raw material with diffusing substances and the method of intensification of the internal transfer of these substances within the raw material. It was found that for brine and brine with pre-sonication, the amount of trace element in the depth of the crucian muscle tissue differs within the error. This indicates the homogeneity of the distribution of the trace element of the dietary supplement based on the chelate complex by such methods of salting.
Getting Started with Data Management & DMPTool at WHOI
Authors: Mickle Audrey
Published: April 2021

Introduction to DMP Tool for WHOI staff given on January 26th, 2017. Presentation adapted from https://dmptool.org/promote#slides.
Aspectos demográficos, socioeconômicos e epidemiológicos da COVID-19 na Região da Sub-Bacia do Canal do Cunha, Rio de Janeiro
Authors: Sotero-Martins Adriana , Coelho Wagner Nazário , Flores Geane Lopes , Gama Eric Lopes , Carvajal Elvira , Siqueira Marilda Agudo Mendonça Teixeira de , Aguiar-Oliveira Maria de Lourdes
Published: April 2021

Objetivo desse estudo foi analisar a incidência e mortalidade por COVID-19 em população de área territorial com predominância de bairros com áreas de favelas (aglomerados subnormais), e sua relação com variáveis contextuais. Foram analisados 36 bairros da Sub-bacia do Canal do Cunha que apresentaram 30.008 óbitos por COVID-19 até o dia 05 de fevereiro de 2021. Considerou-se como variáveis dependentes as taxas de incidência acumulada, mortalidade acumulada e letalidade acumulada. Entre as variáveis contextuais, foram incluídas bairro do paciente; proporção de ASN por bairros, percentual de pretos e pardos, faixa etária; razão de renda, e índices de saneamento. As variáveis foram analisadas de forma descritiva, bivariada pela correlação de Spearman e utilizado a estatística espacial de Moran. Os bairros Complexo do Alemão, Mangueira e Maré foram que apresentaram as maiores proporções de casos e óbitos por COVI-19. O percentual de infecção nas faixas de 20 a 29 anos, 30 a 39 anos e 40 a 49 anos foram de 13,6%, 21.5% e 20,1%, respectivamente. Na faixa etária entre 70 e 79 anos foi 7,3% do total de casos de COVID-19, e 26,7%  de óbitos e 34,2% taxa de letalidade. Quando somado os registros de pessoas pretas e parda com os sem registro para cor/raça houve correlação moderada positiva significativa entre a taxa de incidência acumulada e a taxa de mortalidade  (rho = 0,383; p=0,048 e rho= 0,3176; p=0,0106). A avaliação estatística espacial global e local de Moran permitiu verificar áreas de prioridade intermediárias e médias que necessitam reforçar o sistema de vigilância e controle da COVID-19. A situação epidemiológica de área com grande percentual de áreas favelas mostrou que a mortalidade por COVID-19 em pessoas pretas e pardas está relacionada a aspectos demográficos e que ocorre baixa notificação de casos e de óbitos atribuídas ao COVID-19 em moradores de áreas com favelas.
Diversities Claimed, Displayed and Silenced: Encounters at the new Estonian National Museum
Authors: Seljamaa Elo-Hanna
Published: April 2021

Inspired by Barbro Klein’s research on silences and exclusions in the Swedish folklife sphere, this article explores how diversity is handled at the new Estonian National Museum, which opened in 2016. While its permanent exhibition Encounters makes the bold claim of representing the Estonian territory and its inhabitants from the Stone Age to the present day, a closer look at its contents and design suggests that it does so by repeating, sometimes inadvertently, broader societal silences and stereotypes surrounding ethnic minorities past and present and by sustaining essentialist notions of ethnocultural discreteness. Preference is given to historical minorities already included in the Estonian folklife sphere. 
IDEAS AND RESEARCH ON INTERACTIVE LEARNING
Authors:   Kyrgyz State University named after Arabaev, Zhumanazarov Kuban , Kaldybaev Salidin ,   Alatoo International University
Published: April 2021

The article analyzes the progressive ideas of pedagogy of the twentieth century, which contributed to the emergence of interactive learning. The project method and the laboratory brigade method have received a positive assessment in Western pragmatist pedagogy. These methods found support and were widely introduced in the initial stage of development of Soviet pedagogy. The contribution of pedagogy of cooperation to the formation of interactive learning is noted. The essence of the concept of interactive learning, the work of domestic and foreign authors who have studied this concept are analyzed. Interaction between students, as well as interaction with the teacher is considered an important sign of interactive learning.
SCIENTIFIC AND METHODOLOGICAL WORK ON THE FORMATION OF CULTURAL AND SOCIO-PERSONAL COMPETENCIES OF STUDENTS THROUGH THE USE OF DIDACTIC GAMES IN LITERATURE LESSONS FEATURES
Authors:   Kyrgyz State National University named after J. Balasagyn, Zholdosheva Roza
Published: April 2021

The article emphasizes the role of didactic games in the formation of cultural and socio- personal competencies of students, raises the problem of the need for their use in literature lessons. The scientific and methodological explanation of the fact that the knowledge received by children is related to life is explained by the fact that in these games the students themselves actively participate in the organization of the lesson. Didactic games correspond to the age of the student, in which children participate without problems, but retain the formal specifics of classes and require organizational skills from the teacher. Since this lesson will be conducted through interactive actions of children, the article will tell you what methodological approaches the teacher has to the movement of students, how to correctly solve the ways of forming competencies.
Inflation Thresholds and Policy-Rule Inertia: Some Simulation Results
Authors: Fuentes-Albero Cristina , Roberts John M.
Published: April 2021

In August 2020, the Federal Open Market Committee approved a revised Statement on Longer-Run Goals and Monetary Policy Strategy (FOMC, 2020) and in the subsequent FOMC meetings, the Committee made material changes to its forward guidance to bring it in line with the new framework. Clarida (2021) characterizes the new framework as comprising a number of key features.
Abuse of Right: Historical and Theoretical Research
Authors:   Novosibirsk State University of Economics and Management, Russian Federation, Usoltsev Egor
Published: April 2021

Abuse of right is one of the most complex phenomena in legal science, the study of which requires the use of a wide range of methods of cognition, both general scientific and private law. The author of the article makes a generic analysis of the concept “abuse of right”, disclosing the history of its appearance and development. However, special attention is paid to the discussion of scientists about the essence of abuse of right, in which, as in a “multi-layered cake”, more and more narrow subjects of the discussion are layered, but at the same time, they are all permeated with a common goal – to determine the place and role of the phenomenon in the modern legal order. Historically, the first debate arose on the validity of the very concept of abuse of right, caused by a combination of two words that were opposite in meaning: “right” and “abuse”. This discussion has been going on for more than a century and takes place both in Russian civil law and in foreign legal doctrine. There is also no consensus among supporters of the concept of abuse of right: some attribute abuse of right to a variety of lawful behavior, others call it an offense. This problem is currently urgent and complex. Finally, there are disagreements about the branch of abuse of law: is this concept inter-branch in nature or is it exclusively inherent in the civil law branch? As a result of comparing all points of view, the author in each of the above discussions reasonably takes this or that position. As a result, a complete understanding of the phenomenon under study is formed.
Problem of the Techno-subject: On the Subjectivity of “Entity-Constructors”
Authors:   Novosibirsk State Technical University, Russian Federation, Ignatyev Vladimir
Published: April 2021

The article is devoted to the analysis of one of the most critical points of our time - the crisis of human subjectivity caused by the emergence of an alternative form of agent of social life in society - a techno-object with artificial intelligence and signs of subjectivity. The author’s goal is to justify the possibility of interpreting the nature of these devices as subject-like objects. The study is based on the explication of the concepts of the subject and subjectivity contained in both classical theories and the actor-network theory and related approaches (B. Latour, J. Law, A. Mol), in the object-oriented ontology of G. Harman, ‘onticology’ of Levi R. Bryant, theories of assemblage of M. DeLanda and complexity of E.Morin, in the concepts of the machine unconscious N. Land and techno-subject V. Mazin. An integrated characterization of a person as a subject is used: an individual being with active beginning, physicality, physicality and length, consciousness, personality characteristics and self-awareness. The criteria for categorizing some techno-objects as a type of techno-subject: autonomy and intelligence are introduced. Such techno-objects are artificial entities, assemblies, ready for transformation into techno-subjects. The difference between ‘weak’ techno-subjects (without artificial intelligence) and techno-subjects themselves (with artificial intelligence) is discussed. It is claimed that techno-subjects, genetically remaining technical entities, are in the transitional zone from one entity – ‘entity-constructor’ to another - organic techno-matter, similar to man. Accumulating components and functions of an active artificial system, techno-objects acquire the quality of subjectivity. It has been established that the artificial entity-subject manifests itself (a) in passive entity-actants; (b) in active proto-subject entities; and (c) actually in ‘entity-constructor’ - techno-subjects with the ability to integrate data, analyze it in a situation of uncertainty, reprogramming themselves and creating new algorithms.
Art in the Service of Power: The Creation of a “New Man” (On the Example of Soviet Propaganda Porcelain of the 1920s)
Authors:   Kurgan Regional College of Culture, Russian Federation, Bayutova Margarita ,   Kurgan State University, Russian Federation
Published: April 2021

In the article the author considers the problem of using art as the political power instrument. The subject of the study is the analysis of applied arts possibilities as a means of political propaganda and agitation, the necessary qualities and political views formation in a person. The material for the analysis is the Soviet propaganda porcelain of the 1920s. The choice of this material is caused, firstly, by its great visibility in the framework of the discussed problem, and, secondly, by the negative result of its use in real politics (at first sight, paradoxical). At present, Soviet propaganda porcelain is considered to be a “unique phenomenon” of Russian and world art. However, the main reason for its appearance at the beginning of the 20th century was not the search for new art forms. After coming to power in 1917, the Bolshevists faced the need to form political views of the citizens that were compatible with the party course — in general, to form a “new man” capable of living in a new society. On the one hand, porcelain was a random choice at that period of time (1920-s) but, on the other hand, people assigned specific characteristics to it as a type of applied art. And, therefore, they ascribed to it the possibilities of an instrument of political power. But at the same time using it in that capacity is greatly limited due to other specific properties, as well as due to other historical circumstances. The main reason for the failure of Soviet propaganda porcelain as the political propaganda and agitation means is the contradiction between the course of political power and the essence of porcelain as a phenomenon, i.e. inconsistency between the goal and the means to achieve it. In general, the author draws a conclusion that there is a difference between the goals of art and power and, as a consequence, the groundlessness of the power attempts to consider art exclusively as its own tool.
Women’s Peasant Protest in Siberia in the First Half of 1930: The Phenomenon of a Radical Response to the Policy of Violent Etatization
Authors:   Novosibirsk State University, Russian Federation, Ignatyeva Evgeniya
Published: April 2021

The paper deals with the problem of the phenomenon of women’s protest during the process of “total collectivization” of the agricultural sector. The author investigates the phenomenon as social action within the framework of the structural-functional approach (M. Weber, R. Merton), which allows to eliminate ideological cliches and analyze women’s protest not as an affective social action (“Bab’i bunt” - women’s revolt), but as a complex social action in which the role of goal setting can be dominant. This approach makes it possible to establish the main characteristics of women's protest, its effect, and impact on the culture of peasant protest. It provides an opportunity to consider the processes of interaction between “authority – society” in the extraordinary conditions of “the Great socialist transformation”. Main sources are archival documents of the OGPU authorized representative in the Siberian region (krai); minor sources include archival documents of local party committees and Soviet organisations and also regional press. The author analyzes protest actions recorded by the OGPU officers with the participation of women in the first half of the 1930s, identifying the main characteristics of women’s protest, its forms, causes and motives, as well as the impact on peasant society and state policy. The author also reveals that this social action in the absence of a legal opportunity to influence the agrarian/peasant policy of the party was quite an adequate means to achieve certain goals of the protesters. “Bab’i bunt” was a marker of the extreme social life of early Soviet society during the “Great Break”, which demonstrated the radicalization of relations between the peasant society and authorities during a violent etatization of the village. The conclusion is that the women’s protest, as part of the general peasant protest at the first stage of “complete collectivization”, forced the authorities to adjust their policies and even seek some compromises.
ASSESSMENT OF HEAVY METALS POLLUTION IN THE PLANTS OF PETROPAVLOVSK-KAMCHATSKY (KAMCHATKA TERRITORY) IN 2017–2020
Authors:   Kamchatka State Technical University, Avdoshchenko V.G. , Klimova A.V. ,   Kamchatka State Technical University
Published: April 2021

In this work, we identified the content of zinc, copper, lead, and cadmium in the leaves of plants, including Artemisia vulgaris kamtschatica, Betula ermanii, Calamagrostis canadensis and Salix udensis collected from the territories of Petropavlovsk-Kamchatsky in summer 2020. Comparative analysis of changes in the accumulation levels of heavy metals in species-indicators from the urban environment, such as A. vulgaris kamtschatica and S. udensis, collected from 2017 to 2020 was provided. In general, copper content in plants from the city varied slightly over the entire investigation period. Zinc accumulation in the plants of the herbaceous and woody layers increased in 2020. The opposite trend was recorded in the accumulation of lead and cadmium for species-indicators. Their content in the vegetation cover of the city decreased by half from 2017 to 2020. In 2020, the total heavy metals pollution of plants of the herbaceous layer was assessed as weak; in previous years, it corresponded to an average degree. A similar situation was recorded for the tree layer. In Petropavlovsk-Kamchatsky, one of the most polluted sites was “Bus terminal 10 km”.
EXPERIMENTAL INVESTIGATION ON STRESS AND DIE-WALL FRICTIONAL CHARACTERISTICS OF METAL POWDER DURING HIGH-VELOCITY COMPACTION
Authors: Zhang Wei , Liu Kun , Zhou Jian , Chen Rongxin , Zhang Ning , Lian Guofu
Published: April 2021

In this study, to evaluate the change in the stress and die-wall frictional characteristics during high-velocity compaction (HVC), a metal powder was subjected to HVC with a heavy hammer based on the stress-testing technology and Janssen-Walker model. The changes in the green density, stress characteristics and coefficients of friction at different impact heights were investigated. The density of green compacts increased with the increase in the impact height. The stress in the upper and lower punches and the die wall showed repeated loading and unloading. The coefficient of friction of the die wall underwent three stages and was related to powder densification. As the height position along the side wall was increased, the coefficient of friction increased gradually. With an increased impact height, the coefficient of friction increased significantly in the incomplete-molding stage but remained constant in the complete-molding stage. This work expands the theoretical basis of densification processing of a metal powder during HVC.
EXPERIMENTAL AND ANALYTICAL STUDY OF A NEW KIND OF STEEL-PVA HYBRID FIBER CONCRETE IN THE ANCHORAGE ZONE OF A BRIDGE EXPANSION AND CONTRACTION INSTALLATION
Authors: Huang Minshui , Wan Zihao , Lei Yongzhi , Shi Xin , Shu Guoming
Published: April 2021

In this paper, a new kind of steel-polyvinyl alcohol (PVA) hybrid fiber concrete with high early strength and better road performance is proposed for use in the anchorage zone of a bridge expansion and contraction installation (BECI). Firstly, a comprehensive test design method is adopted to evaluate the mechanical properties of the concrete by adding different percentages of fibers, and the optimal percentages of steel and PVA fiber additives are determined. The results of the compressive and flexural strength test indicated that the concrete with added 1.5 % steel fiber and 0.12 % PVA fiber has a higher early strength. Secondly, to evaluate the performance of the improved concrete, the finite-element method was adopted to model the anchorage zone concrete of the BECI, and the loading location of maximum stress was determined and some factors, such as overload and horizontal force coefficient, were considered. The maximum stresses of the anchorage zone are less than the ultimate stresses of the steel-PVA hybrid fiber concrete. It can be concluded that the improved concrete has better road performance. Finally, a case study of the actual bridge was carried out to verify the practical value of the steel-PVA hybrid fiber concrete. Although there is some reduction in the compressive strength, the new concrete is more suitable than the conventional concrete to meet the requirements for the construction of concrete in the anchorage zone of the BECI, which can reduce the construction period and show great practical application value.
ACOUSTIC EMISSION AND DAMAGE CHARACTERISTICS OF ANTHRACITE UNDER DIFFERENT CONDITIONS
Authors: Zheng Jiyu , Jin Xiaohua , Tian Kunyun , Zhou Yinbo
Published: April 2021

Acoustic emission (AE) can be used to observe the process of coal fracture propagation. Based on a press and acoustic-emission platform, the damage and acoustic-emission characteristics of anthracite with different loading rates, water amounts and sizes were studied. The results show that there is less acoustic emission in the initial compression stage of coal; acoustic emission is more active in the transition from elastic deformation to plastic deformation, which is manifested in the following aspects: the faster the loading rate, the higher is the number of acoustic-emission events; the peak count of acoustic emissions of a saturated-coal sample is significantly lower than that of a natural-coal sample. Coal samples and large coal samples emit even more sounds. Based on the normalization of acoustic-emission counts, the relationship between damage variables and stress-strain is studied, and it is characterized by an initial slow increase, followed by a rapid increase; however, different factors have a great influence on the damage-characteristic curve. The research results have a certain guiding significance for the coal and rock disaster prediction.
PROCESS-PARAMETER OPTIMIZATION OF WEDM WITH INCONEL 825 ALLOY USING GRA
Authors: Subburaj Arulselvan , Durairaj Ravindran , Decruz Arul Marcel Moshi Antony Joseph , Dharmaraj Vignesh Kumar
Published: April 2021

The process-parameter optimization of a wire electrical discharge machining (WEDM) process has been performed with an Inconel 825 alloy during taper profile machining. The input parameters have been considered at three different levels and the number of experiments to be performed was decided using Taguchi's Design of experiment (DOE). The output performances such as material removal rate (MRR), Surface roughness (SR) and taper error (TE) were considered simultaneously for the optimization process. The experimental results were analysed using Grey relational analysis (GRA) and the best experimental trial was identified based on ranking. The influence of the input parameters was analysed using the ANOVA technique. The regression equations to predict the output responses were formed using the experimental results and the correlation between the experimental and regression equation results.
CHARACTERISATION OF BIOMEDICAL TITANIUM LAYERS DEPOSITED BY A VACUUM PLASMA SPRAY PROCESS
Authors: Mrdak Mihailo , Bajić Darko , Veljić Darko , Rakin Marko
Published: April 2021

In this paper we will describe the process of the deposition of thick layers of VPS-Ti coating, which is used as a bonding layer for the upper porous Ti coatings on implant substrates. In order to deposit the powder, we used HÖGANÄS Ti powder labelled as AMPERIT 154.086 -63 µm. In order to test the mechanical properties and microstructure of the VPS-Ti coating, the powder was deposited on Č.4171 (X15Cr13 EN10027) steel substrates. Mechanical tests of the microhardness of the coating were performed by the Vickers hardness test method (HV0.3) and tensile strength by measuring the force per unit area (MPa). The microhardness of the coating is 159 HV0.3, which is consistent with the microstructure. The coating was found to have a good bond strength of 68 MPa. The morphology of the powder particles was examined on a scanning electron microscope. The microstructure of the coating, both when deposited and etched, was examined with an optical microscope and a scanning electron microscope. By etching the coating layers, it was found that the structure is homogeneous and that it consists of a mixture of low-temperature and high-temperature titanium phases (α-Ti + β-Ti). Our tests have shown that the deposited layers of Ti coating can be used as a bonding layer for porous Ti coatings in the production of implants.
PREDICTION OF FORMATION ENERGY USING TWO-STAGE MACHINE LEARNING BASED ON CLUSTERING
Authors: Fan Xingyue
Published: April 2021

The formation energy (Hf) is one of the important properties associated with the thermodynamic stability of ABO3-type perovskite. In this work, two-stage machine learning based on hierarchical clustering and regression was designed for improving the prediction values of the density-functional theory (DFT) Hf of ABO3-type perovskites. A global dataset was clustered into Cluster 1 and Cluster 2 using the CHI (the Calinski-Harabasz index). To compare the prediction performances of Hf, DTR (decision tree regression), GBRT (gradient boosted regression trees), RFR (random forest regression) and ETR (extra tree regression) were applied to build models of Cluster 1, Cluster 2 and the global dataset, respectively. The results showed that all four different regression models of Cluster 1 had a higher R2, and lower MSE and MAE than those of the global dataset, while the models of Cluster 2 were poorer. Meanwhile, the GBRT model of Cluster 1 achieved a higher R2 of 0.917, and lower MSE and MAE of 0.033 eV/atom and 0.125 eV/atom. We further validated and compared the generalization ability of the models by predicting the Hf of ABO3-type perovskite previously unseen in the training set. The two-stage machine-learning models proposed here can provide useful guidance for accelerating the exploration of materials with desired properties.
EVALUATION OF THE INSULATION CONDITION OF HIGH-VOLTAGE TRANSFORMERS BY DETECTING PARTIAL DISCHARGES USING THE ELECTROMAGNETIC WAVE RADIATION METHOD
Authors: Malažinskas Vilius , Raišutis Renaldas , Morkvėnas Alfonsas , Gudžius Saulius , Jonaitis Audrius , Vaičys Jonas , Daukšys Gediminas
Published: April 2021

High-voltage transformers are among the most important elements in an electric-power system. Each one of them is affected by various external factors: overvoltage, partial discharge (PD), overheating, vibrations, etc., which are created by a strong electric field, thermal effect, humidity, impurities, factory defects, dissolved water and gas in oil-type-transformer insulation. These and other factors, caused by the environment, reduce the life of a device. Thus, the evaluation of the device condition is one of the most important factors for a system-safety evaluation, which ensures a reliable and economical electrical-network operation. This work reviews different contact and non-contact methods, used to evaluate the conditions of transformers by measuring the level of PD. The selected method, i.e., the non-contact measurement of electromagnetic-wave radiation was used to evaluate the voltage-transformer status. The experiment was performed at a 110 kV substation. The authors discuss the efficiency of the selected method to evaluate the voltage-transformer insulation condition.
PASSIVE UHF RFID TAGS WITH THERMAL-TRANSFER-PRINTED ANTENNAS
Authors: Gigac Juraj , Fišerová Mária , Kováč Maroš , Hegyi Svetozár
Published: April 2021

Papers for the thermal transfer printing of UHF RFID antennas were prepared by coating and calendering. Real and imaginary components of the impedance of the UHF RFID antennas depended on their design, coating composition and conditions of paper calendering. Passive UHF RFID tags were constructed from antennas and chips whose real and imaginary components of impedance in the 860–960 MHz frequency band were at approximately the same level. The communication quality of passive UHF RFID tags was evaluated by measuring the reading range using the designed UHF RFID reading unit. The reading range of experimental UHF RFID tags with printed antennas on paper and commercial UHF RFID tags with chemically etched antennas on a PET film were identical in the 860 MHz frequency.
MODIFICATION OF THE CAST STRUCTURE OF AN EN AW 2011 ALLOY WITH HOMOGENIZATION
Authors: Vončina Maja , Paulin Irena , Debevec Ana , Nagode Aleš
Published: April 2021

Aluminium alloys of group 2xxx contain copper as the main alloying element. Copper increases the strength and workability of the alloy, but also reduces the corrosion resistance and weldability. During casting, a nonequilibrium solidification occurs. Therefore, the cast alloy needs to be heat treated with a so-called homogenization process. Homogenization allows us to eliminate crystalline segregations and low-melting eutectics, and also causes changes in the morphology of intermetallic phases. The forming ability is in this way increased. In this research the subject of the investigations was the aluminium alloy with designation EN AW 2011 (AlCuBiPb), whereas the comparative analysis before and after homogenization annealing was made. Homogenization was conducted at 520 °C for 6 h. First, slices from two rods before and after homogenization were cut out, where three samples from each slice of the rod, namely in the middle, on D/4 and at the edge of the slice were prepared. Differential scanning calorimetry (DSC) was performed on all six samples, the results were compared with each other in order to establish the structure homogeneity before and after the homogenization process through the cross-section of the rod. Samples for light (LM) and scanning electron microscopy (SEM) were also prepared, whereas the phase composition and chemical homogeneity were analysed. Using the Thermo-Calc program, the nonequilibrium solidification was simulated and the phase formation during solidification was examined. From the obtained results, it was concluded that the homogenization was carried out successfully, due to a homogeneous chemical distribution in the examined phases and to a fairly homogeneous chemical composition throughout the cross-section of the rod slice.
Does Perioperative Respiratory Event Increase Length of Hospital Stay and Hospital Cost in Pediatric Ambulatory Surgery? v1
Authors: not provided oomaliwa , not provided oomaliwa
Published: April 2021

Objective: We examined the consequences of perioperative respiratory event (PRE) in terms of hospitalization and hospital cost in children who underwent ambulatory surgery. Methods:Thissubgroup analysis of a prospective cohort study (ClinicalTrials.gov: NCT02036021) was conducted in children aged between 1 month and 14 years who underwent ambulatory surgery between November 2012 and December 2013. Exposure was the presence of PRE either intraoperatively or in the postanesthetic care unit or both. The primary outcome was length of stay after surgery. The secondary outcome was excess hospital cost excluding surgical cost. Financial information was also compared between PRE and non-PRE. Directed acyclic graphswere used to select the covariates to be included in the multivariate regression models. The predictors of length of stay and excess hospital cost between PRE and non-PRE children are presented as adjusted odds ratio (OR) and cost ratio (CR), respectivelywith 95% confidence interval (CI). Results: Sixty-three PRE and 249 non-PRE patients were recruited. In the univariate analysis, PRE was associated with length of stay (p =0.004), postoperative oxygen requirement (p <0.001), and increased hospital charge (p =0.006). After adjustments for age, history of snoring, American Society of Anesthesiologists physical status, type of surgeryand type of payment, preoperative planned admission had an effect modification with PRE(p<0.001). The occurrence of PRE in the preoperative unplanned admission was associated with 24-fold increased odds of prolonged hospital stay (p <0.001). PRE was associated with higher excess hospital cost (CR =1.35, p=0.001). The mean differences in contribution margin for total procedure(per patient) (PRE vs non-PRE) differed significantly (mean =1,523; 95% CI: 387, 2,658 baht). Conclusion:PRE with unplanned admissionwas significantly associated with prolonged length of stay whereas PRE regardless of unplanned admissionincreased hospital cost by 35% in pediatric ambulatory surgery.
Fear, Stress, and Knowledge regarding COVID-19 in Nursing Students and Recent Graduates in Mexico
Authors: Medina Fernández Isai Arturo , Carreño Moreno Sonia , Chaparro Díaz Lorena , Gallegos-Torres Ruth Magdalena , Medina Fernández Josué Arturo , Hernández Martínez Eva Kerena
Published: April 2021

Objective. The study sought to correlate fear, stress, knowledge regarding COVID-19 in Nursing students and recent graduates in Mexico.

Methods. Correlational design, sample comprising 912 nursing students and graduates during the last 18 months from public and private universities of Mexico. To measure the variables, the study applied the instrument Fear of COVID-19 Scale, knowledge subscale of the scale Knowledge, attitudes, and practices towards COVID-19, and the instrument COVID Stress Scale.

Results. Relationship was found of the age variable with fear, danger of contamination, traumatic stress, knowledge and minor socioeconomic consequences (p<0.05). Likewise, relationship was observed of fear with stress regarding COVID-19, danger of contamination, socioeconomic consequences, xenophobia, traumatic stress, and compulsive checking (p<0.05). Stress and knowledge explain the presence of fear regarding COVID-19 in 50.3%, and fear and knowledge explain stress regarding COVID-19 in 50.4%.

Conclusion. Nursing students and recent graduates have high levels of stress and fear, besides low level of knowledge. The presence of high stress and low knowledge predict fear regarding COVID-19. Interventions are required on knowledge, stress, and fear regarding COVID-19 in the population studied.
Tetikte Hayatlar: Epileptik Bireylere Bakım Verenlerin Yaşadığı Sorunlar Ve Baş Etme Becerileri
Authors: KUTLU İhsan , DEMİREL İrem , KAZAN Gözde
Published: April 2021

Konu ve Amaç: Hastalıklar hastayı ve hasta yakınlarını ekonomik, duygusal, psikolojik ve sosyal yönden etkilemektedir. Bu çalışmanın konusu olan epilepsi hastalığı da hem epileptik bireyin hem de ona bakım verenin yaşam kalitesini ve sosyal işlevselliğini kısıtlayan bir hastalıktır. Bu çalışma, epilepsi hastalarına bakım verenlerin yaşadıkları sorunları ve bu sorunlarla baş etme becerilerini konu edinmiştir. Gereç ve Yöntem: Epileptik bireylere bakım veren 10 kişiye amaçlı ve kartopu örnekleme yöntemiyle ulaşılmış olup yarı yapılandırılmış soru formuyla mülakatlar gerçekleştirilmiştir. Sonrasında bu görüşmeler deşifre edilerek analiz edilmiştir. Bulgular: Epileptik bireylere bakım veren kişilerin hastalık sebebiyle ekonomik, sosyal, psikolojik sorunlar yaşadığı; ancak bu sorunlarla mücadele edebilmek için de çeşitli baş etme mekanizmaları geliştirdikleri görülmüştür. Sonuç: Epileptik bireye bakım verenlerin yaşam kalitesinin düştüğü ve sosyal işlevselliklerinde azalma meydana geldiği gözlenmiştir. Hastalığın özelliği sebebiyle bakım verenlerin hayatları iki kelimeyle özetlenmiştir: tetikte hayatlar.
Geodynamic aspects of high-level radioactive waste disposal: a case-study of Nizhnekansky massif
Authors: Tatarinov V. N. , Morozov V. N. , Manevich A. I. , Kamnev E. N.
Published: April 2021

This article describes the methodological aspects and some results of the assessment and prediction of the geodynamic stability of the geological environment as applied to the problem of ensuring the safety of underground isolation of high-level radioactive waste (HLRW) in the geological formations of the Nizhnekansky massif, Krasnoyarsk Region. For this, the authors introduced a basic concept of the stability of the geological environment. Based on instrumental observations, mathematical models, system analysis of geospatial data, the ranking of structural tectonic blocks according to the degree of stability and the geodynamic zoning of the northern part of the Nizhnekansky massif were implemented. To assess the stability, the authors used geological data, a digital elevation model, the results of the interpretation of geophysical fields and geodetic observations. It is shown that the stability of the blocks differs significantly according to kinematic parameters. Geodetic observations based on GPS/GLONASS satellite systems, carried out in 2010-2019, made it possible to obtain for the first time information on the rates of horizontal movements of the lithosphere and their cyclicity for the region located in the zone of force interaction of the largest tectonic structures, namely, Siberian platform, West Siberian plate and the Altai-Sayan Orogen. The maximum speeds were recorded for points located in the zone of dynamic influence of the Muratovsky and Pravoberezhny faults. The energy concentration criteria as the fracturability characteristics of structural rock blocks are proposed for the stress–strain analysis of rock mass. To substantiate the long-term geodynamic safety of deep disposals of HLRW of the 1st and 2nd classes, the authors developed a program for the long-term observations of differentiated movements in the earth’s crust and seismic activity for 2021–2026 in an underground research laboratory. The study was carried out under the state contract between the Geophysical Center of the Russian Academy of Sciences and the Ministry of Science and Higher Education of the Russian Federation.