bluuebunny/crossref_metadata_2025 huggingface dataset:
Studies of the Influence of Temperature on the Photocatalytic Activity of Tungsten Oxide
Authors: Derbasova N.
Published: December 2021

Abstract. The results of photocatalytic activity of tungsten oxide in visible light are analyzed. It was shown that tungsten oxide has photocatalytic activity under the action of visible light in the photodegradation of the dye methylene blue. It was determined that the concentration of 15 mg/L provides the highest rate of photodecomposition of methylene blue. The optimum temperature for the process was determined. The process of methylene blue decomposition is most effective at 25 °С.
Carbonized Steel-Smelting Slag Is a Promising Raw Material for the Production of Artificial Concrete
Authors: Romanenko I.
Published: December 2021

Abstract. Obtaining an artificial stone based on steel-smelting slag is possible as a result of carbonization of the feedstock in carbon dioxide. The feedstock - slag and carbon dioxide - are by-products from steel smelting in electric furnaces, which must be disposed of in order to improve the environmental situation in the region. The condition for obtaining the cementing ability of steelmaking slag is the preparation of a charge with certain properties and maturation technology: humidity, dispersion of the fine fraction and the maximum size of the coarse fraction, the ratio between the coarse and dispersed fractions, the concentration of carbon dioxide in the gas-air environment, temperature, pressure and flow time. carbonization reactions in the reactor, the magnitude of the pressure during the production of pressed articles, the process of stone maturation in the post-carbonization period.
Development of a Method for Obtaining a Wear-Resistant Coating for a Cutting Tool
Authors: Litvinov A.E.
Published: December 2021

Abstract. The article presents a method for producing a nanostructured wear-resistant high-hard coating with high physicomechanical and strength characteristics, resistance to shock and vibration loads. The result is an increase in adhesion between the substrate and the coating, as well as an increase in microhardness. One of the common methods of metal cutting is band-cutting machines that use closed band saws as cutting tools. Since materials with high physicomechanical characteristics (hardness, strength, etc.) are increasingly being used in modern production, which significantly complicates the cutting process and makes increased demands on the cutting tool. To expand the range of processed materials for which the productive use of band-cutting machines is possible, it became necessary to create a band saw with higher cutting characteristics. At the same time, the specificity of the working conditions of the band saw shows that the blade should have such characteristics as increased vibration resistance, resistance to alternating and dynamic loads, and the cutting part of the saw should have increased resistance to shock, dynamic, alternating loads, have high hardness, as well as increased wear resistance.
Investigation of Electromagnetic Properties of Tool Hard Alloys under the Influence of High Temperatures
Authors: Artamonov E.V.
Published: December 2021

Abstract. The article shows the developed installation for determination of temperature of maximum operability of replaceable cutting hard-alloy plates on the basis of study of change of electromagnetic properties. The method of research is given. Tests of images were carried out to time of heating of the replaceable cutting plates from solid B35 alloy. The heating temperature interval was selected according to the temperature mode of the process of cutting difficult materials. Heating was carried out to 1000˚ C. The results of the study were obtained to determine the temperature of maximum operability of replaceable cutting hard alloy plates based on the study of the change in electromagnetic properties for alloy В35 amounted to 460-730 ° С.
Wearproof Composite Coatings on Ti
Authors: Mashtalyar D.V.
Published: December 2021

Abstract. In this work the formation of protective coatings on VT1-0 commercially pure titanium by plasma electrolytic oxidation (PEO) and subsequent fluoropolymer treatment is presented. The structure, morphology, corrosion, and mechanical properties of the formed composite coatings were studied. It was established that PEO coatings are an excellent basis for the formation of a solid composite layer with high adhesion to its surface. The presence of polytetrafluoroethylene in the composition of the coating reduces the corrosion current density by 4 orders of magnitude and increases the wear resistance by 2 orders of magnitude in comparison with the base PEO coating.
Investigation of the Operational and Technological Reliability of the Small-size Internal Threading Process
Authors: Kharchenko A.
Published: December 2021

Abstract. The article presents the results of research in the direction of improving technological equipment for internal threading of parts in a flexible automated production. Methods for assessing the operational and technological reliability of a flexible manufacturing module (FMM) of thread processing are considered, which can be used as the basis for the developed method of synthesis of its elements. It is proposed to consider the technological system of the flexible manufacturing module (FMM) of thread processing as a system in which transitions from state to state occur under the action of the simplest flows with parameters of the transition probabilities of a continuous Markov chain. The developed mathematical model describing the state of the FMM taking into account the failures of the functioning of its elements, parametric failures, as well as taking into account the recovery after these types of failures, makes it possible to reflect the influence on the operation of the module of the parameters of the flows of failures and restorations of the tool, machine tool, fixture, loading device. The solution of the obtained systems of equations of final probabilities allows for given (or experimentally obtained) intensities of failure streams (functioning and parametric) for FMM threading to obtain the values of the probability of failure-free operation, as well as the probabilities of finding the system in an inoperative state due to corresponding failures. The measures taken make it possible to solve the synthesis problem at the level of structural and layout optimization, so that at the stage of parametric synthesis to determine the elements that are vulnerable according to the developed criterion, the improvement of which will lead to the creation of the most efficient system.
Assessment of a Heterogeneous Environment
Authors: Zverovshchikov A.
Published: December 2021

Abstract. An approach to the assessment of a heterogeneous environment in accordance with the proposed concept of a heterogeneous environment is described. The classification of industrial heterogeneous media by technological feature is proposed. The processes described by the proposed approach include the process of metal cutting, surface plastic deformation, chemical-thermal treatment, formation of coatings, welding, most of the processes that change the level and gradient of hardness and internal stresses in the surface layer of the material. Application of the proposed principles makes it possible to find new directions in the study of such processes.
Research on the development of the Chinese higher education system during the anti-Japanese war period, 1937-1945
Authors: Jun Huang Yan , Seng Tan Chee
Published: December 2021

The ancient dynasty was deposed in 1911, and a new republic took its place. It is found that China made great development in all areas of life throughout the Republican era (1912-1949) excepting Anti-Japanese War. During the time when the last Quing dynasty would approach its end, China is in the primary stage in building a higher education system.  In a republican era, China developed its modern higher education system which is composed of public universities, private, universities, and voluntary universities. The war with Japan was certainly the most momentous event in the History of China during the Republican era. The methodology indicating the Reformation era is thoroughly examined during the war. The new development of the war has highlighted a higher education system. Consequently, this paper examines the evolution of China's higher education system from 1937 to 1945, during Japan's anti-war era. In this paper, a descriptive methodology is used to get reliable results. Besides, secondary data such as journals, peer-review, papers, books, articles, were used to get information for the topic.
Исследование этапов превращения кремния в карбид кремния в процессе атомного замещения методами полного внешнего отражения рентгеновских лучей и рентгеновской дифрактомерии
Authors: Кукушкин С.А. , Осипов А.В. , Осипова Е.В. , Стожаров В.М.
Published: December 2021

X-ray diffraction and total external reflection of X-rays (X-ray reflectometry) methods were used to study the successive stages of synthesis of epitaxial SiC films on Si (100) X-ray diffraction and total external X-ray reflection (XRD) methods were used to study successive stages of synthesis of epitaxial SiC films on Si (100) surfaces, (110) and (111) surfaces by the atom substitution method. The data on the transformation evolution of (100) surfaces were studied, (110) and (111) Si, into SiC surfaces. A comparative analysis of the X-ray structural quality of the SiC layers grown on Si by the atom substitution method with the quality of SiC layers grown by Advanced Epi by the standard CVD method. A modified technique for the total outer X-ray reflection method, based on measurements of the intensity of the reflected X-rays using a special parabolic mirror. It is shown that the method of total external reflection
method makes it possible to obtain important information about the degree of surface roughness of SiC layers, the evolution of their crystal structure and plasmon energy in the process of Si to SiC conversion.
DESIGN OF CIRCULAR SLOTTED RECTANGULAR MICROSTRIP PATCH ANTENNA WITH DUAL-RESONANCE FOR WLAN/WIMAX APPLICATIONS
Authors: BAYER KESKİN Sena Esen , GÜLER Cem
Published: December 2021

In this work, a design for enhancing bandwidth of a dual-resonant circular slotted patch antenna for 2.4-3.5 GHz WLAN/WiMAX applications is proposed and tested. The designed antenna is a modified form of the rectangular patch antenna consisting of three identical circular slots in antenna surface and it printed on an FR-4 substrate. This antenna has two different operating frequencies, with center frequencies of 2.592 and 3.338 GHz. Classical microstrip antennas yield a maximum bandwidth of about 8%. By incorporating slots in antenna, the bandwidth of the antenna is improved. The fractional bandwidth at 2.592 GHz is 50.9% and at 3.358 GHz is 39.5%. The proposed antenna is simulated, fabricated and tested. Measured results showed good agreement with the simulated results. The gain of the antenna is 2.169 dB at 2.59 GHz and 2.175 dB at 3.338 GHz.
CLUDS: COMBINING LABELED AND UNLABELED DATA WITH LOGISTIC REGRESSION FOR SOCIAL MEDIA ANALYSIS
Authors: ALTINEL Ayşe Berna
Published: December 2021

Automatic text classification and sentiment polarity detection are two important research problems of social media analysis. The meanings of the words are so important that they need to be captured by a document classification algorithm to reach an accurate classification performance. Another important issue with the text classification is the scarcity of labeled data. In this study, Combining Labeled and Unlabeled Data with Semantic Values of Terms (CLUDS) is presented. CLUDS has the following steps: preprocessing, instance labeling, combining labeled and unlabeled data, and prediction. In preprocessing step Latent Dirichlet Allocation (LDA) algorithm is used. In instance labeling step Logistic Regression is applied. In CLUDS, relevance values computation has been applied as a supervised term weighting methodology in the text classification field. Still, according to the literature, CLUDS is the first attempt that uses both relevance and weighting calculation in a semi-supervised semantic kernel for Support Vector Machines (SVM). In this study, Sprinkled-CLUDS and Adaptive-Sprinkled-CLUDS have also been implemented. Evaluated experimental results show that CLUDS, Sprinkled-CLUDS and Adaptive-Sprinkled-CLUDS generate a valuable performance gain over the baseline algorithms on test sets.
Patients’ Experiences of Telemedicine for Their Skin Problems: Qualitative Study
Authors: Chow Aloysius , Teo Sok Huang , Kong Jing Wen , Lee Simon , Heng Yee Kiat , van Steensel Maurice , Smith Helen
Published: December 2021

Background

Teledermatology is a cost-effective treatment modality for the management of skin disorders. Most evaluations use quantitative data, and far less is understood about the patients’ experience.

Objective

This qualitative study aimed to explore patients’ perceptions of a teledermatology service linking public primary care clinics to the national specialist dermatology clinic in Singapore. A better understanding of patients’ experiences can help refine and develop the care provided.

Methods

Semistructured in-depth interviews were conducted with patients who had been referred to the teledermatology service. The interviews were digitally recorded and transcribed before undergoing thematic content analysis.

Results

A total of 21 patients aged between 22 and 72 years were recruited. The following 3 themes were identified from the data of patients’ experiences: positive perceptions of teledermatology, concerns about teledermatology, and ideas for improving the teledermatology service. The patients found the teledermatology service convenient, saving them time and expense and liberating them from the stresses incurred when making an in-person visit to a specialist facility. They valued the confidence and reassurance they gained from having a dermatologist involved in deciding their management. The patients’ concern included data security and the quality of the images shared. Nonetheless, they were keen to see the service expanded beyond the polyclinics. Their experiences and perceptions will inform future service refinement and development.

Conclusions

This narrative exploration of users’ experiences of teledermatology produced rich data enabling a better understanding of the patients’ journey, the way they understand and interpret their experiences, and ideas for service refinement. Telemedicine reduces traveling and enables safe distancing, factors that are much needed during pandemics.
Use of the McIsaac Score to Predict Group A Streptococcal Pharyngitis in Outpatient Nurse Phone Triage and Electronic Visits Compared With In-Person Visits: Retrospective Observational Study
Authors: Pecina Jennifer L , Nigon Leah M , Penza Kristine S , Murray Martha A , Kronebusch Beckie J , Miller Nathaniel E , Jensen Teresa B
Published: December 2021

Background

The McIsaac criteria are a validated scoring system used to determine the likelihood of an acute sore throat being caused by group A streptococcus (GAS) to stratify patients who need strep testing.

Objective

We aim to compare McIsaac criteria obtained during face-to-face (f2f) and non-f2f encounters.

Methods

This retrospective study compared the percentage of positive GAS tests by McIsaac score for scores calculated during nurse protocol phone encounters, e-visits (electronic visits), and in person f2f clinic visits.

Results

There was no difference in percentages of positive strep tests between encounter types for any of the McIsaac scores. There were significantly more phone and e-visit encounters with any missing score components compared with f2f visits. For individual score components, there were significantly fewer e-visits missing fever and cough information compared with phone encounters and f2f encounters. F2f encounters were significantly less likely to be missing descriptions of tonsils and lymphadenopathy compared with phone and e-visit encounters. McIsaac scores of 4 had positive GAS rates of 55% to 68% across encounter types. There were 4 encounters not missing any score components with a McIsaac score of 0. None of these 4 encounters had a positive GAS test.

Conclusions

McIsaac scores of 4 collected during non-f2f care could be used to consider empiric treatment for GAS without testing if significant barriers to testing exist such as the COVID-19 pandemic or geographic barriers. Future studies should evaluate further whether non-f2f encounters with McIsaac scores of 0 can be safely excluded from GAS testing.
Changes in Use of a Leisure Activity Mobile App for Children With Disabilities During the COVID-19 Pandemic: Retrospective Study
Authors: Yoo Paul Yejong , Movahed Mehrnoosh , Rue Ishana , Santos Carlos Denner Dos , Majnemer Annette , Shikako Keiko
Published: December 2021

Background

Participation in leisure activities is essential for child development and a human right as per the United Nations Convention on the Rights of the Child. Children with disabilities face several restrictions when participating in leisure activities as compared to same age peers without disabilities. Access to information about accessible, inclusive leisure activities is one of the barriers limiting participation, and one potential health promotion strategy is to provide access to information to increase participation. The Jooay App is a mobile app listing such activities in Canada and Australia. With the COVID-19 global pandemic and subsequent public health measures, most community-based facilities providing the activities listed on Jooay were closed. The app therefore started listing online activities offered with the expectation of continuing to provide information for families and understanding the extent to which users relied on the mobile app as a tool to identify new safe leisure opportunities.

Objective

This study aims to describe the engagement of the Jooay app before and during COVID-19, and to estimate the extent to which the listing of online activities was related to the engagement of the Jooay app.

Methods

We conducted a retrospective study comparing Jooay app use between March 2020 and February 2021 to the engagement between March 2019 and February 2020 by Jooay users. Spearman rank correlations were carried out to identify associations between the activities listed and the users’ engagement from May 2020 to February 2021.

Results

Active engagement with the Jooay app from March 2020 to February 2021 dropped by an average of 135 engagements (64.2%) compared to engagements in 2019-2020. The largest monthly drop in engagement was observed in May 2020 by 239 engagements (88.8%). There was a strong positive correlation between the number of active users and the number of online activities listed on the app (rs=0.900).

Conclusions

The engagement with the Jooay App presented an expected decrease during the first wave of the COVID-19 pandemic. The addition of online adapted leisure activities to the app’s listings during the pandemic increased app use. Access to information about inclusive activities is a barrier for children with disabilities to engage in leisure. Mobile health solutions can be responsive to contextual factors and consider the social determinants of health such as socioeconomic and public health emergency issues that can impact the participation of vulnerable populations such as children with disabilities and help eliminate barriers to participation. The provision of online leisure opportunities during the pandemic could facilitate participation in these activities during the pandemic and beyond, which is essential and beneficial for the physical and mental well-being of children with disabilities and their families.
A Patient-Reported Outcome Tool to Triage Total Hip Arthroplasty Patients to Hospital or Video Consultation: Pilot Study With Expert Panels and a Cohort of 1228 Patients (Preprint)
Authors: Pronk Yvette , Pilot Peter , van der Weegen Walter , Brinkman Justus-Martijn , Schreurs Berend Willem
Published: December 2021

BACKGROUND

The digital transformation in health care has been accelerated by the COVID-19 pandemic. Video consultation has become the alternative for hospital consultation. It remains unknown how to select patients suitable for video consultation.

OBJECTIVE

This study aimed to develop a tool based on patient-reported outcomes (PROs) to triage total hip arthroplasty (THA) patients to hospital or video consultation.

METHODS

A pilot study with expert panels and a retrospective cohort with prospectively collected data from 1228 THA patients was executed. The primary outcome was a PRO triage tool to allocate THA patients to hospital or video consultation 6 weeks postoperatively. Expert panels defined the criteria and selected the patient-reported outcome measure (PROM) questions including thresholds. Data were divided into training and test cohorts. Distribution, floor effect, correlation, responsiveness, PRO patient journey, and homogeneity of the selected questions were investigated in the training cohort. The test cohort was used to provide an unbiased evaluation of the final triage tool.

RESULTS

The expert panels selected moderate or severe pain and using 2 crutches as the triage tool criteria. PROM questions included in the final triage tool were numeric rating scale (NRS) pain during activity, 3-level version of the EuroQol 5 dimensions (EQ-5D-3L) questions 1 and 4, and Oxford Hip Score (OHS) questions 6, 8, and 12. Of the training cohort, 201 (201/703, 28.6%) patients needed a hospital consultation, which was statistically equal to the 150 (150/463, 32.4%) patients in the test cohort who needed a hospital consultation (P=.19).

CONCLUSIONS

A PRO triage tool based on moderate or severe pain and using 2 crutches was developed. Around 70% of THA patients could safely have a video consultation, and 30% needed a hospital consultation 6 weeks postoperatively. This tool is promising for selecting patients for video consultation while using an existing PROM infrastructure.

CLINICALTRIAL
Necrobiosis lipoidica: a rare clinical and pathomorphological case
Authors: Nizhynska-Astapenko Z.P. , Vlasenko M.V. , Vernygorodsky V.S. , Kholod L.P. , Shvedka O.V.
Published: December 2021

According to modern scientific researches, necrobiosis lipoidica (NL) is a disease characterized by focal disorganization and lipid collagen dystrophy. It is believed that the basis of skin changes in this dermatosis is diabetic microangiopathy that is accompanied by sclerosis and obliteration of blood vessels, which leads to necrobiosis with subsequent deposition of lipids in the dermis. This pathology is registered relatively rarely, in 1 % of patients with diabetes mellitus (DM) on average. The combination of NL with DM, according to the literature data, ranges from 25 to 70%; more often (in 40–60 % of cases) DM is preceded by NL, and in 10–25 % of cases they occur simultaneously. In addition, in 10–50 % of cases NL is diagnosed in people without concomitant diabetes. The variability of clinical, epidemiological features and the relatively low prevalence of this pathology is often the cause for misdiagnosis or late diagnosis. The described clinical case is typical in terms of the epidemiological data: sex, age, presence of DM. At the same time, it is rare in terms of the clinical picture: it is not classically diabetic by localization (symmetrical areas of the legs are typical), by appearance of necrobiosis areas — granulomatous type of necrobiosis in the form of granuloma annulare, by histological structure — area of chronic perivascular lymphoplasmocytic inflammation with the involvement of single giant cells, which required additional clinical and anamnestic data for an objective report of the pathologist. Biopsy in this case was used as a differential diagnosis between granuloma annulare and necrobiotic necrogranuloma. In addition, this method of diagnosis has played an additional therapeutic role. This case may have demonstrated the activation of the cellular and humoral immune response in the area of chronic inflammation in response to a mechanical damage and the resolution of inflammation with complete tissue repair.
Factors Affecting Cyclist Behaviours in the Special Region of Yogyakarta
Authors: Febrianto Danang , Dewanti  , Imam Muthohar
Published: December 2021

Bicycle-riding/cycling has reportedly become a new trend in various cities of Indonesia, as well as the Special Region of Yogyakarta, amidst the social restriction applied by the Government to decrease the spreading rate of the COVID-19 virus. This is observed to be a healthier effort in strengthening the immune system during the pandemic. However, the positive growth of this trend is proportional to the increasing data on bicycle accidents. This was due to the increased rate of injured and dead victims from 2017 to 2020. The human behavior factor is also one of the factors causing the high rate of these bicycle accidents. Therefore, this study aims to analyze the factors affecting the behavior of cyclists in the Special Region of Yogyakarta, to reduce the continuous increase of accidents. The data used in this study were the result of the Cyclist Behavior Questionnaire (CBQ) on the Yogyakarta riders. The samples were obtained through the purposive sampling method, using an online questionnaire with a google form and acquiring 362 respondents. Furthermore, the analytical method used was the structural equation modeling (SEM), through the AMOS 22.0 software. The results indicated that the regulation scale directly affected risk perception and cyclist behaviors (risky and positive). However, age only affected their behaviors, which did not directly affect the accidents. The regulation scale then directly affected the risky behavior of cyclists, with risk perception observed as the mediator, implying that the cyclists' knowledge of road safety regulations influenced individual behaviors. In conclusion, these results are expected to be one of the considerations in the policy of the government, to carry out the overall development of transportation, especially bicycles.
Editorial
Authors: Hall-Lew Lauren
Published: December 2021

Welcome to the second issue of Volume 7 of Lifespans & Styles: Undergraduate Papers in Sociolinguistics. This issue includes five papers that continue the journal’s mission of showcasing excellence in undergraduate research in sociolinguistics. This issue’s papers are thematically similar to one another in very interesting ways – more so than any set of paper published in any previous issue. The first two focus on language and race, racism, and African American English; the other three are all about lifespan change and second language/dialect acquisition.
No fue suerte, estaba preparado: la filosofía de la suerte de Axel Barceló
Authors: Ibarrondo Murguialday Julen
Published: December 2021

En este trabajo expongo la concepción de la suerte que defiende Axel Barceló en su libro Falibilidad y normatividad. Un análisis filosófico de la suerte. De acuerdo con Barceló, la suerte es un concepto irreductiblemente normativo mediante el cual el agente obtiene un resultado con un procedimiento para el que no estaba preparado. Este nuevo enfoque arroja luz sobre problemas filosóficos aparentemente muy distintos, como el papel de la suerte en nuestras evaluaciones epistémicas y morales, el problema de la vaguedad o los modales epistémicos. Defiendo que, si bien la propuesta adolece de ciertos problemas a la hora de vincular el hecho de estar preparado con actuar con responsabilidad, el espíritu general de la teoría de Barceló presenta ventajas notables respecto a las teorías alternativas.
The Economic Dimension of Labour Migration Cauvery Delta Zone in Tamil Nadu, India
Authors: Mahendran Dr. G.
Published: December 2021

Abstract: Majority are international migrant and interstate migrants, majority (75%) of the respondents in the age groups (21 to 40) migrated to different places like Thiruppur, Coimbatore, Chennai, Kerala and Saudi, Arabia, Dubai, Mascot, Malaysia, and Singapore. Main reasons for migration are low wages, unemployment debt due to failure in agriculture due to lack of rains, more employment opportunities in the destination place and more jobs and a handsome salary which leads to improvement of the living conditions.Such pull and push factors encourage emigration to high-income countries experiencing labour shortages. Emigration has different impacts on sending country and destination country. Low wages and rain-fed agriculture in the native place have been found the economic factors leading to migration, while poverty, poor civic amenities, leading a poor life, high aspirations and demonstration effect were social and psychological factors resulting to migration. Lesser storage of water in delta region consequent on insufficient rainfall in the catchment area does not allow the farmers to Cauvery Delta Zone. Keywords: Labor migration, Employment, income and Cauvery Delta Zone
Validasi Modul Peduli: Pelatihan Asertivitas Anti-Bullying
Authors: Hijrianti Udi Rosida
Published: December 2021

Penelitian ini dilakukan untuk memvalidasi modul Pelatihan Asertivitas Anti-Bullying (PEDULI). Modul PEDULI bertujuan untuk memberikan pengetahuan dan pemahaman pada remaja tentang bullying dan melatihkan cara bersikap asertif dalam kehidupan. Penelitian ini dilakukan untuk memvalidasi modul Pelatihan Asertivitas Anti-Bullying (PEDULI). Modul PEDULI bertujuan untuk memberikan pengetahuan dan pemahaman pada remaja tentang bullying dan melatihkan cara bersikap asertif dalam kehidupan sehari-hari agar menghindari perilaku bullying. Hipotesis yang diuji dalam penelitian ini ada dua, yaitu pertama, modul PEDULI memiliki validitas isi yang baik. Hasil dari evaluasi tiga expert judgment menunjukkan nilai koefisien validitas isi sebesar 86% - 93%. Hipotesis kedua yaitu, terdapat perubahan peningkatan asertivitas yang signifikan pada subjek kelompok eksperimen dibandingkan dengan subjek kelompok kontrol. Hasil uji statistik menggunakan analisis Mixed ANOVA menunjukkan skor asertivitas pada kelompok eksperimen lebih tinggi secara signifikan dibandingkan kelompok kontrol (F = 11,699 dan p = 0,002; p < 0,05) dan skor asertivitas sesudah pelatihan pada kelompok eksperimen lebih tinggi secara signifikan dibandingkan sebelum pelatihan (F = 4,182 dan p = 0,021; p < 0,05). Berdasarkan hasil tersebut dapat disimpulkan bahwa modul Pelatihan Asertivitas Anti-Bullying (PEDULI) dinyatakan valid secara isi dan valid secara empirik pada penerapan terhadap 14 siswa di kelompok eksperimen.
A special limit state of reinforced concrete frameswith laterally reinforced nodes in the case of emergency impacts
Authors: Kolchunov Vitaly I. , Korenkov Pavel A. , Phan Dinh Quoc
Published: December 2021

Introduction. The increasing number of domestic and foreign publications on structural safety and survivability of buildings and structures evidences a great interest in the study of the problem of protecting bearing systems from progressive collapse. The relevance of these studies is determined by the ongoing rise in the number of man-induced, natural and terrorist impacts on buildings and structures. In this regard, the decisive factor is the expansion of experimental and theoretical studies, focused on ensuring the required level of survivability of bearing systems under such special impacts and, respectively, developing methods for protection from progressive collapse.

Materials and methods. This work presents new results of experimental studies on models of a fragment of a multi-storied building made of monolithic reinforced concrete, whose nodes, connecting the girder and the column, are reinforced with laterally reinforced meshes designed to resist operational static loads and a special emergency impact caused by the failure of one ground-floor column in the framework.

Results. The article presents the results of experimental and theoretical studies on the stress-strain state and crack resistance of reinforced concrete frames or fragments of multi-storied frameworks of buildings, made of monolithic reinforced concrete. Nodes of these buildings are laterally reinforced. The data on force-induced resistance of structures were obtained for cases of the static operational loading of a structure and special emergency impacts caused by the instantaneous withdrawal of one column on the ground floor. A comparative analysis of the pace of cracking, crack development and opening is made. The co-authors have made a benchmark assessment of parameters of limit and beyond-the-limit states, as well as elements of structural systems, having nodes with/without laterally reinforced meshes.

Conclusions. The co-authors have identified the nature of actual deformation and destruction of elements in the bearing system, whose nodes are laterally reinforced. The co-authors have experimentally identified the principal properties of structural elements to allow for a more rigorous assessment of deformability and the bearing capacity of the effect produced by the lateral reinforcement on the resistance of structural systems in beyond-the-limit states.
The thermal stress state arising in the contact area of mass concreteduring construction
Authors: Aniskin Nikolai A. , Chuc Nguyen Trong
Published: December 2021

Introduction. The contact area of concrete gravity dams is of vital importance. Substantial temperature gradients and tensile stresses can arise in the process of concrete casting and thermal regime creation; they can cause thermal cracking. The practice of monitoring the construction and operation of concrete gravity dams has identified frequent vertical cracking along and across the dam axis, which can have an adverse impact on structural behaviour. Despite the large number of research works, some of which are mentioned in the work, the extent of influence of the modulus of elasticity in the bed on the thermally stressed state of mass concrete has yet to be fully resolved. The purpose of the research is to enhance the insight into the stress-strain state arising in the contact area of mass concrete and the bed, depending on its rigidity.

Materials and methods. The research was conducted using the numerical finite element method and the MIDAS software package.

Results. The influence of bed rigidity on the thermally stressed state arising in the contact area of mass concrete in the process of construction has been analyzed. Several options featuring different ratios between the modulus elasticity of the bed and mass concrete were considered in respect of a mass concrete structure made of vibrated and rolled concretes. Emerging stresses are compared. Mathematical expressions are obtained to project maximum tensile stresses occurring in the contact area.

Conclusions. A more rigid bed rises maximum tensile temperature stresses, which increase the risk of thermal cracking. Research results can be used to predict maximum tensile stresses near the contact section of the mass concrete, whose dimensions are close to those of the structure under research.
PROSPECTS FOR THE DEVELOPMENT OF DISTRIBUTED GENERATION BASED ON RENEWABLE ENERGY SOURCES IN THE TERRITORY OF THE FAR EAST OF RUSSIA
Authors:   YULIA VLADIMIROVNA KHONDOSHKO Amur State University, KHONDOSHKO YULIA VLADIMIROVNA
Published: December 2021

The article discusses the prospects for the development of distributed generation facilities based on renewable energy sources, assesses the energy potential of solar, wind, biomass, geothermal energy.
WASTE MANAGEMENT IN THE MECHANICAL WORKSHOP OF LLC «MASHINOSTROITEL» AND THE DEVELOPMENT OF MEASURES TO IMPROVE IT
Authors:   TATIANA VIKTOROVNA IVANYKINA Amur State University, IVANYKINA TATIANA VIKTOROVNA , SHAPOVALOV IGOR ALEKSANDROVICH ,   IGOR ALEKSANDROVICH SHAPOVALOV Amur State University
Published: December 2021

The treatment of the generated waste of the mechanical workshop of LLC «Mashinostroitel» is considered. To optimize waste management in the machine shop, measures are recommended.
MANAGEMENT OF CHANGES IN THE ACTIVITIES OF LLC «ATIK-MOTORS» ASC «TOYOTA»
Authors:   LINA VASILIEVNA RYBAKOVA Amur State University, RYBAKOVA LINA VASILIEVNA , LANKINA MARIA ALEKSEEVNA ,   MARIA ALEKSEEVNA LANKINA Amur State University
Published: December 2021

The article presents the results of a study of the current state of activity of the authorized service center «Toyota» LLC «Atik-Motors» and develops issues of planning changes in the organization for the purpose of its development, improving the quality of service and maximizing profit. Management of changes in the activities of LLC «Atik-Motors» ASC «Toyota».
OPTIMIZATION OF THE BANK'S DIVISION WORK USING SIMULATION MODELING
Authors:   NADEZHDA NIKOLAEVNA MAKSIMOVA  Amur State University, MAKSIMOVA NADEZHDA NIKOLAEVNA
Published: December 2021

The paper presents the construction in the AnyLogic program and the study of the queuing system simulation model, which is a division of the bank; the main characteristics of the system are calculated, the results of the simulation model are analyzed and recommendations for optimizing the work of the department are given.
DESIGNING THE PAYLOAD HOUSING OF A SMALL SPACECRAFT IN THEIN CAD «KOMPAS-3D»
Authors:   ALEXANDER ALEXANDROVICH OGORODNIKOV Amur State University, OGORODNIKOV ALEXANDER ALEXANDROVICH , FOMIN DMITRII VLADIMIROVICH ,   DMITRII VLADIMIROVICH FOMIN Amur State University
Published: December 2021

The paper presents a methodology for designing the payload housing (PN), using the example of the PN «pHoton-AMUR 2.0», in the automatic design system (CAD) «Compass-3D». The case was created as a system of passive thermal regulation and shielding from external electromagnetic fields, as well as in order to extend the service life of the PN. When developing the PN body of a small spacecraft, the weight and size requirements were taken into account, as well as the manufacturability of the device. Of the three presented variants of the PN housing, after analyzing their parameters, the optimal one was selected. It is shown that the cOmpass-3D CAD system makes it possible to effectively solve the problems of designing the structures of small spacecraft.
Short Commentary on Approved Medications for COVID -19 Management?
Authors: Kumar Jaidev , Mahendrappa , , Shwetha , , Harshith ,
Published: December 2021

Every clinician who prescribes antiviral drug during COVID-19 should be very careful and needs to assess following factors such as hepatic and renal function status, specialized population such as Geriatric, Pediatric etc, co morbidities of patient, allergic history of drug, COVID-19 severity status, clinical evidence in management of COVID-19 and duration of drug therapy in COVID-19.
A histopathological comparison of prophylactic effects of Rosmarinic Acid and Oleanolic Acid isolated from Salvia species (sage) in scopolamine induced dementia model
Authors: Deveci Engin , Özkorkmaz Ebru Gökalp , Aşır Fırat , Şahin Fırat , Ermiş Işılay Sezen , Ertaş Abdülselam , Akkoç Hasan , Kandemir Sevgi İ. , Çevik Mehmet Uğur , Onay Ahmet , Erantepli Ceren
Published: December 2021

Objective: Alzheimer's disease (AD) is the most common form of dementia, can be created in experimental models by using toxins. Possible therapeutic effects of secondary metabolites Rosmarinic (RA) and Oleanolic acids (OA) obtained from Salvia species (sage) were investigated using histopathological and immunohistochemical tecniques in experimental Alzheimer's-like dementia model induced by scopolamine.

Study Design: Male BALB/c mice (n: 48) of 3-4 weeks old, divided into 6 groups; control received only saline(i.p.) for 21 days, scopolamine group received 3 mg/kg of scopolamine (i.p.) between  8-21th days. Scopolamine + RA group received 5 mg/kg RA (i.p.)  between days 0 and 21 and 3 mg/kg of scopolamine (i.p.) between 8-21th days. Scopolamine + OA group received 5 mg/kg of OA (i.p.) between days of   0-21 and 3 mg/kg of scopolamine (i.p.) between 8-21th days. RA group received 5 mg/kg RA (i.p.)  between 0-21th days. OA group   received 5 mg/kg of OA (i.p.) between 0-21th days. Animals were sacrificed under anesthesia, brain tissues were excised and placed in 10% formaldehyde, embedded in paraffin wax. 5 µm sections were cut, stained for histopathological examinations.  Immunoreactivity for Beta-amyloid accumulation was observed. ImageJ   153 software was used to analyze IHC figures. Positive signaling for DAB density was calculated, ANOVA test with the post hoc dunnett's or tukey test were applied, p<0.05 was considered statistically significant.

Results: In scopolamine+RA treated group, tissue degeneration was less compared to the scopolamine group. Scopolamine+OA group revealed signs of pyknosis in neurons. The amyloid beta immunoexpression was positive in scopolamine group partially positive in scopolamine+OA group but, negative in RA treated scopolamine group. Intensity of signal in scopolamine group was statistically increased compared to control (p=0.0102). Intensity of signal was reduced in Scopolamine+RA and Scopolamine+OA groups, was statistically significant (p=0.0281 and p=0.0362, respectively).

Conclusion: We suggest that pretreatment of RA and OA decreased beta amyloid formation and ameliorated tissue structure but, further studies with different methods are needed to be commercially available.

Keywords: Scopolamine, dementia, Rosmarinic acid, Oleanolic acid, histopathology, Amyloid beta
Study of Molecular Docking, Molecular Dynamic and Toxicity Prediction of Several Quinoline Alkaloid Derivatives as a Bruton Tyrosine Kinase Inhibitor as Anti-Leukemia
Authors: Muttaqin Fauzan Zein , Restisari Ikma Hanifah , Muhammad Hubbi Nasrullah
Published: December 2021

Quinoline alkaloid and its derivatives play a vital role in the development of new therapeutic agents. Cinnoline structure has similarities with quinoline alkaloid compound and has the potential to inhibit Bruton’s Tyrosine Kinase (BTK) in leukemia treatment. This research aims to study the interaction of several quinoline alkaloids with BTK and to predict the toxicity to ensure their safety. This study was carried out using computational studies, including molecular docking, molecular dynamics simulation, and toxicity prediction, to assess the compound’s activity towards BTK and their toxicity. Molecular docking simulations showed that ten compounds (S1, S2, S4, S5, S8, S13, S14, S16, S17, and S20) had the best affinity to BTK. Molecular dynamics simulations to these ten compounds showed that only seven compounds (S1, S5, S8, S13, S16, S17, and S20) could stabilize the interaction towards BTK with RMSD and RMSF value of 0.5 ± 2 Å and 0.5 ± 6, 5 Å, respectively. Toxicity prediction results showed that these quinoline alkaloids had various toxicity characteristics, but most were not carcinogens and mutagens (S4, S5, S6, S7, S8, S10 S11, S12, S14, and S15). It can be concluded that Yukositrin (S8) has the most potential affinity towards BTK, which can be used as anti-leukemia with low toxicity.

Keywords: anti-leukemia, Bruton Tyrosine Kinase, docking, MD, quinoline alkaloids
Phytochemical analysis and antiproliferative properties of Pistacia atlantica leaves
Authors: Benahmed Fatiha , Mehrab Elazhari , Kharoubi Omar
Published: December 2021

The medicinal plants may serve as potential sources for the development of new drugs and more effective anticancer agents for future therapy. Pistacia atlantica (Vahl.) Masters (Anacardiaceae) is an important plant used in traditional medicine practice in Algeria, and North Africa countries. The present study has the objective to estimate the in vitro antiproliferative (on the RD and Hep2 human tumor cell lines using the3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium (MTT) assay) properties of the aqueous extracts of P. atlantica leaves, offering a phytochemical characterization of its aqueous extracts, by spectrophotometry methods. evealed by HPLC, phenolic compounds present among the five different flavonoids identified such as: ((epi)catechin, myricetin, quercetin and kaempferol glycoside derivatives). The MTT assay revealed that the tested extract had a good activity against Hep2 and RD cell lines with median inhibitory concentration (GI50)> 1000 μg/mL against Hep2 and (IC50) = 825,079 μg/mL against RD, (GI 50). The results showed a great bioactive potential for this species with a significant contribution of phenolic compounds, specially the flavonoids which makes it an interesting matrix in the development of novel pharmaceutical formulations. Planned future studies will involve the identification of different extract other than aqueous extract, determination of the mechanisms of action and the bioactive molecule of plant extracts.

Keywords: Pistacia atlantica; aqueous extract; antiproliferative; MTT, HPLC.
Editorial
Authors: Fossá Juliano Luiz , Matte Alessandra , Souza Marcia
Published: December 2021

Editorial
The System of Continuing Education at the Federal Scientific Agroengineering Center VIM
Authors: Tsench Yu. S.
Published: December 2021

From 1930 to 1991 our country built a well-structured system of agroengineering higher education institutions and faculties of mechanization that, for 90 years, effectively developed and operated solving the problem of training engineering personnel for the evolving mechanized agriculture. The collapse of the USSR caused dramatic changes in the country system of agricultural engineering education. As a result of numerous reorganizations and reforms in the Russian system of higher education, agroengineering universities ceased to exist independently and had to join agricultural universities. The mergers and integration of research institutions and the establishment of large federal research centers on their basis have made it expedient to implement a continuing professional education system (master’s, postgraduate, doctoral studies).The Federal Scientific Agroengineering Center VIM is developing the system of continuing professional education for training modern agricultural engineering personnel in the field of automation, robotization, digital technologies. A current target of the Federal Scientific Agroengineering Center VIM is the implementation of Master’s degree programs.
Intelligent Technologies and Robotic Machines for Garden Crops Cultivation
Authors: Smirnov I. G. , Khort D. O. , Kutyrev A. I.
Published: December 2021

The existing models of industrial robots cannot perform technological processes of apple harvesting. It is noted that there is a need for developing special actuators, grippers and new control algorithms for harvesting horticulture products. (Research purpose) The research aimed to develop an intelligent control system for horticulture industrial technologies and robotic techniques for yield monitoring and fruit harvesting. (Materials and methods) The research methodology was based on such modern methods as computer modeling and programming. In particular, the following methods were applied: systems analysis, artificial neural networks theory, pattern recognition, digital signal processing. The development of software, hardware and software was carried out in accordance with the requirements of GOST technical standards. The following programming languages were used: (C / C ++)-based  OpenCV library, Spyder Python Development Environment, PyTorch and Flask frameworks, and JavaScript. Image marking for training neural networks was carried out via VGG ImageAnnotator and in Labelbox. The design process was based on the finite element method, CAD SolidWorks software environment. (Results and discussion) An intelligent management system for horticulture industrial technologies has been created based the on the «Agrointellect VIM» hardware and software complex. The concept of the system is shown to be implemented via computer and communication technology, robotic machines, the software for collecting, organizing, analyzing and storing data. The gripper proves to fix an apple gently and holds it securely. Depending on the size, the fruit fixation time is 1.5-2.0 seconds, the fruit maximum size is 85 per 80 millimeters , and its maximum weight is 500 grams. (Conclusions) The developed intelligent control system for industrial technologies based on «Agrointellect VIM» hardware and software complex ensures the efficient real-time processing of information necessary for the design of intelligent agricultural technologies using robotic machines and artificial intelligence systems.