bluuebunny/crossref_metadata_2025 huggingface dataset:
TECHNICAL, CLINICAL AND PROGNOSTIC ASPECTS OF HYPERTENSIVE RETINOPATHY
Authors:   Zaporizhia Medical Academy of Postgraduate Education Ministry of Health of Ukraine, Zaporizhia, Ukraine, Dotsenko N. Ya. , Boev S. S. ,   Zaporizhia Medical Academy of Postgraduate Education Ministry of Health of Ukraine, Zaporizhia, Ukraine, Нerasymenko L. V. ,   Zaporizhia Medical Academy of Postgraduate Education Ministry of Health of Ukraine, Zaporizhia, Ukraine, Shekhunova I. A. ,   Zaporizhia Medical Academy of Postgraduate Education Ministry of Health of Ukraine, Zaporizhia, Ukraine
Published: November 2020

Changing approaches to the management of patients with arterial hypertension, reflected in international recommendations regarding, including diagnosis, determination of a cardiovascular risk, required to return to the issue of the place of fundoscopy in routine clinical practice. Recent studies have clarified the prevalence of various retinopathy options using new, highly accurate instruments. A large number of works are devoted to the study of the prognostic role of fundoscopy, and here the opinions of researchers are unequivocal: the detection of signs of the initial stages of retinopathy has a very little effect on patient management. It should be agreed with the opinion of experts from the European Cardiology Society that fundoscopy is indicated mainly in patients with difficult to control or resistant hypertension, and is not recommended for people with mild to moderate hypertension, not suffering from diabetes, with the exception of young patients.
Sporcularda Bağlanma Stillerinin Duyguları Düzenleme Becerileri ve Bilişsel Duygu Düzenleme Stratejilerini Belirlemedeki Rolünün İncelenmesi
Authors: ÖNER Çiğdem , ASCI F.hülya
Published: November 2020

Sporcuların bağlanma stillerinin duyguları düzenleme becerileri ve bilişsel duygu düzenleme stratejilerini belirlemedeki rolünün incelenmesinin amaçlandığı bu çalışma ilişkisel tarama modeline dayalı olarak yapılmıştır. Çalışmaya İstanbul İlinden 18-30 yaş arası 235’i erkek ve 125’i kadın toplam 360 lisanslı sporcu katılmıştır. Katılımcılara, İlişki Ölçekleri Anketi, Duyguları Düzenleme Becerileri Ölçeği, Bilişsel Duygu Düzenleme Ölçeği ve Kişisel Bilgi Formu uygulanmıştır. Veriler; betimsel istatistikler, bağımsız gruplar için t-testi, Pearson korelasyon analizlerinin yanı sıra hiyerarşik regresyon analizleri ile sınanmıştır. Sonuçlar, kadın sporcuların korkulu bağlanma puanlarının erkeklerin puanlarından, erkek sporcuların diğerlerini suçlama puanlarının ise kadınlardan anlamlı olarak daha yüksek olduğunu, bireysel performans sporcularının kayıtsız bağlanma, değişimleme, pozitif tekrar odaklanma, plana tekrar odaklanma, pozitif tekrar gözden geçirme ve bakış açısına yerleştirmek puanlarının takım performansı sporcularına göre daha yüksek olduğunu, takım performans sporcularının yıkım puanlarının bireysel sporculardan daha yüksek bulunduğunu göstermiştir. Bağlanma stillerinin duyguları düzenleme becerileri ile bilişsel duygu düzenleme stratejilerini yordayıcılığını ortaya koymak üzere uygulanan hiyerarşik regresyon analizleri sonucunda; bağlanma stillerinin kabul ve tolerans dışında sırasıyla farkındalık, beden duyumları, netlik, anlama, yüzleşmeye hazırlanma, öz-destek ve değişimleme olmak üzere tüm diğer duygu düzenleme becerilerinin anlamlı belirleyicisi olduğu tespit edilmiştir. Sonuçlar ayrıca, bağlanma stillerinin kendini suçlama, kabul etme, düşünceye odaklanma, pozitif tekrar odaklanma, plana tekrar odaklanma, pozitif yeniden gözden geçirme, bakış açısına yerleştirmek, yıkım ve diğerlerini suçlama olmak üzere tüm bilişsel duygu düzenleme stratejilerinin anlamlı belirleyicisi olduğunu göstermiştir. Bulgulara göre; bağlanma stillerinin sporcuların duygu düzenleme becerileri ile bilişsel duygu düzenleme stratejilerini belirlemelerinde etken olduğu söylenebilir.
Legal aspects of applying indexes and e-management in evaluating the publication activity of scientists
Authors: Omorov R. O.
Published: November 2020

Scientometry methods meet the requirements of digitalization and e-management of the science, development due to the widespread use of mathematical methods of information processing. To assess the scientific productivity of scientists and specialists in scientometrics, various indicators are used, the most common of which is the Hirsch index or h-index. The Hirsch index is calculated from the number of citations of the researcher’s works included in a certain database.

For CIS countries, an important database of scientific and educational publications is the database of the Russian Scientific Citation Index (RSCI). One of the problems with using the Hirsch index is the compliance of assessments with copyright rules. The Hirsch index shows the comparative effectiveness of the work of a scientist or team of scientists. But as it is not difficult to see, according to the Hirsch index counting indicators for the RSCI databases, for individual scientists their contribution and participation in collective publications and their citations are not taken into account. It is proposed to introduce a modified Hirsch index, called the Hirsch index “plus” or h +, which is calculated on the basis of dividing the usual number of citations of a particular publication by the number of co-authors of the cited publication, which will not cause difficulties in calculating h + indices, using the algorithm for determining the Hirsch index itself. Such an indicator corresponds to copyright rules, takes into account the interests of co-authors from the point of view of copyright and more accurately assesses the effectiveness of the work of a particular author when comparing the work of scientists.

Modern scientometrics is a necessary tool for research on the development of science, forecasting and managing its development, some of the indicators of which are citation indices, in particular, the most common in practice is the Hirsch index, and the Hirsch “Plus” index and other modifications to take into account the individual contributions of scientists and specialists. Each of the existing modifications of scientometric indices can be used to investigate the publication activity of scientists and specialists depending on the specifics of the tasks set, taking into account the complexity and convenience of calculating specific indexes.
Modern challenges and prospects for the development of BIM-modeling in Russia in the age of digitalization
Authors: Vozgoment N. V.
Published: November 2020

The article analyses the general problems of implementing BIM technologies in the construction industry of the Russian Federation. The paper determines the influence of the concept of scientific and technological progress on the development of information modeling in construction. The author reflects the concept of BIM modeling in the economic sphere. The study considers the stages of implementation and problems of adoption of innovative technologies in construction. The author suggests ways out of the current practice of organizing mutual relations between participants in the construction process.

The article considers the fundamental and key aspects of the processes of domestic development of information design programs in the construction sector and in the Russian economy as a whole. The paper reflects the influence of foreign initiative and foreign funding in the functionality of information design software utilities. The study reflects the impact of the introduction of information BIM technologies in the construction processes at various stages of the investment project development: from development and design to commissioning, subsequent use and, if necessary, demolition of the object. The author presents arguments that justify the need to develop BIM modeling in the construction processes in Russia.

The paper gives a modern interpretation of the concept of information modeling in construction on the territory of the Russian Federation. The author supposes that it is not necessary to introduce information BIM modeling in Russia at all acceptable scales (volumes) of its technological development abroad. The article presents the main activities that contribute to the development of progress in the implementation of BIM technologies on the territory of Russia in the construction sector and in general in the domestic business. The study considers and systematizes the goals and objectives of digitalization of the economy, including in construction. The paper discusses design functions in construction, promising variations of improving the quality of construction projects and reducing the level of risks and costs of the project.
Analysis of international practice in the development and implementation of public administration digital platforms
Authors: Denisova A. I. , Pisareva O. M. , Suyazova S. A.
Published: November 2020

Implementation of the task of creating a digital platform for a full-featured system of information and analytical support for public administration at the federal, regional and municipal levels, requires a lot of resources and serious expertise.

In this regard, the subject of the study was the experience and trends in the construction and operation of digital platforms for state and public administration. The aim of the paper was to summarize the international practice of creating, operating and developing digital public administration platforms. As part of the study, the authors carry out a systematic, content and comparative analysis of various sources: regulatory documents, scientific papers, analytical materials of a number of international organizations, etc.

The article presents the results of a study of world experience in the application of various tools to support e-government and support digital governance platforms. The authors describe global trends in the use of information and communication technologies to support public administration. The paper presents a list of general principles for the operation of digital platforms, gives the results of the analysis on the compliance with these principles of the state digital platform of the European Union, highlights its distinctive properties.

The article forms proposals and development directions, based on the results and available studies on the development and promotion of digital management platforms, that can help accelerate the spread of digital transformation of public administration in the Russian Federation. The results of the study can be applied to identify the potential of the existing platform, its strengths and weaknesses, including in the context of the possibilities of developing the process of digital transformation of governance, as well as effectively moving towards the formation of the digital platform of public administration in the Russian Federation.
Digitalization of the economy: Russia on the way to technological primacy
Authors: Kuznetsov N. V. , Lesnykh Yu. G. , Prokhorova T. A.
Published: November 2020

The article analyses the current state and trends of the processes of digitalization of the economy in the Russian Federation, and also collates the levels of penetration of digital technologies in the structure of the economy of Russia and foreign countries-competitors. As a basis, the set task of achieving technological superiority in key sectors of the digital economy has been adopted. The paper shows that although the Russian Federation occupies a prominent position in the world in terms of the introduction of digital technologies, it is not included in the group of leading countries in the digitalization process. As of the end of 2019, it can be stated that Russia, if the current course continues, will remain among the countries of “catching up development”. The authors show that the lag in the Russian Federation is observed in almost all components of digitalization processes. The efforts made by the government of the country in recent years to accelerate the digitalization processes have not been sufficient. Although they produced results, the main opponents of Russia on the world stage pursued a more intensive policy in the same direction, which ensured their current separation.

To achieve technological superiority, a cardinal change of policy is necessary, which should reorient to new, more productive than the current mechanisms for the development and implementation of new digital technologies with the simultaneous intensification of both state and private efforts. Deepening the industry specification of digitalization policies will also have a positive effect. In addition, it is necessary to actively engage in digitalization processes and strengthen the role of scientific organizations (both academic and other).
Analysis of key components of the “Digital University” Model
Authors: Golyshkova I. N.
Published: November 2020

One of the priorities of the government program “Digital economy of the Russian Federation” is the progressive development of the existing education system, which should provide the economy with competent personnel. In addition, this Program declares the need to create a system of motivation for the development of the necessary competencies and participation of personnel in the development of the digital economy of Russia. On the other hand, the current educational trends both in Russia and abroad require the creation of a fundamentally new, open education system aimed not only at creating future competencies, but also at expanding the availability of education. Access to education in this case implies the possibility of obtaining educational services for all categories of citizens, including residents of remote regions, as well as for people with disabilities. Currently actively developing online course platforms (Massive Open Online Courses) do not yet provide a full range of educational services in addition online students do not have the opportunity to obtain a higher education diploma, which would be recognized by employers. Accordingly, the task of providing modern, accessible and open educational services still falls on classical universities. All this requires transformation of the classical educational system, which ultimately implies the creation of a “Digital University”. The author of the article presents her own view on the formation of the “Digital University” model and explains her point of view about the key elements of this model. The article substantiates and describes the five main components of the “Digital University” model and also concludes that further detailed description of these proposed components in their relationship with the processes of digital transformation of the University is necessary.
Machine Learning Transition Temperatures from 2D Structure
Authors: Sifain Andrew , Yalkowsky Samuel , Rice Betsy , Barnes Brian
Published: November 2020

A priori knowledge of physicochemical properties such as melting and boiling could expedite materials discovery. However, theoretical modeling from first principles poses a challenge for efficient virtual screening of potential candidates. As an alternative, the tools of data science are becoming increasingly important for exploring chemical datasets and predicting material properties. Herein, we extend a molecular representation, or set of descriptors, first developed for quantitative structure-property relationship modeling by Yalkowsky and coworkers known as the Unified Physicochemical Property Estimation Relationships (UPPER). This molecular representation has group-constitutive and geometrical descriptors that map to enthalpy and entropy; two thermodynamic quantities that drive thermal phase transitions. We extend the UPPER representation to include additional information about sp2-bonded fragments. Additionally, instead of using the UPPER descriptors in a series of thermodynamically-inspired calculations, as per Yalkowsky, we use the descriptors to construct a vector representation for use with machine learning techniques. The concise and easy-to-compute representation, combined with a gradient-boosting decision tree model, provides an appealing framework for predicting experimental transition temperatures in a diverse chemical space. An application to energetic materials shows that the method is predictive, despite a relatively modest energetics reference dataset. We also report competitive results on diverse public datasets of melting points (i.e., OCHEM, Enamine, Bradley, and Bergstrom) comprised of over 47k structures. Open source software is available at https://github.com/USArmyResearchLab/ARL-UPPER.
Synthesis and styrene copolymerization of halogen novel ring-substituted isobutyl phenylcyanoacrylates
Authors: Gabrielle Escalante, , Victoria Escalante, , Hartoun Amanda A. , Hsu Cynhia B. , Ibrahim Yousef A. , Jones Will R. , Jun Charles Y. , Karpiuk Madeleine M. , Obaseki Eghe S. , Osak Phillip A. , Schwartzwald Jessica R. , Sloan Ryan W. , Rocus Sara M. , Schjerven William S. , Kharas Gregory
Published: November 2020

Novel oxy ring-trisubstituted isobutyl phenylcyanoacrylates, RPhCH=C(CN)CO2CH2CH(CH3)2 , where R is 5-bromo-2,4-dimethoxy, 2-bromo-3-hydroxy-4-methoxy, 3-chloro-2,6-difluoro, 4-chloro-2,6-difluoro, 2,3,5-trichloro, 2,3,6-trichloro, 2,3,4-trifluoro, 2,3,5-trifluoro, 2,4,5-trifluoro, 2,4,6-trifluoro, 3,4,5-trifluoro, 2,3,5,6-tetrafluoro, 2,3,4,5,6-pentafluoro were synthesized by the piperidine catalyzed Knoevenagel condensation of ring-substituted benzaldehydes and isobutyl cyanoacetate and characterized by CHN analysis, IR, 1H and 13C NMR. The acrylates were copolymerized with styrene in solution with radical initiation (ABCN) at 70°C. The compositions of the copolymers were calculated from nitrogen analysis.
Modeling Variance: A Variance-Motivated Approach to Molecular Prediction
Authors: mitchell na'il
Published: November 2020

In this variance-motivated study, the variance of a multi-thousand molecular dataset of Coulomb matrices is analyzed. This paper presents novel statistical methods and models that can aide in molecular prediction and analysis. A blended statistical/ML model is introduced for classifying data as Normal as well as a model for visualizing variance. Linear regression is also used to show a potential simple and 1 dimensional molecular descriptor, for some molecules. Paper includes literature review.
A Chemical Definition of Efficiency
Authors: Kaspar Felix
Published: November 2020

The term efficient has gained great popularity in the chemical literature, despite the lack of an applicable and relatable definition. In this perspective, a chemical definition of efficiency is discussed building on the concept of non-wasteful resource usage. It is proposed than an efficient method, synthesis or protocol is one which requires less resources in the form of money, time and materials than comparable approaches which accomplish the same task.
Synergistic Effect of Hydrogen Bonding and π-π Stacking Enables Long Cycle Life in Organic Electrode Materials
Authors: Tuttle Madison R. , Davis Shelby , Zhang Shiyu
Published: November 2020

Small-molecule organic compounds have emerged as attractive candidates for energy storage in lithium-ion batteries due to their sustainability and modularity. To develop generalizable design principles for organic electrode materials (OEMs), we investigated the correlation between electrochemical performance and addition of functional groups that promote synergistic hydrogen bonding and π-π stacking using a series of quinone-fused aza-phenazines (QAPs) with different hydrogen bonding donor/acceptor arrays. The QAP containing the most hydrogen bonding groups (3) exhibits the best performance with discharge capacities of 145 mAh g-1 at 2C with 82% capacity retention over 1000 cycles. The performance of 3 is attributed to the strategically incorporated -OH and -NH2 groups, which facilitate strong intermolecular interactions and a tightly packed 2D structure. The intermolecular interaction strength was evaluated using variable temperature 1D 1H NMR and 2D 1H-1H NOESY, offering a new strategy to help understand and predict the performance of OEMs with hydrogen bonding motifs.
Switching Energy Dissipation Pathway: in situ Proton-Induced Transformation of AIE-Active Self-assembly to Boost Photodynamic Therapy
Authors: Li Jie , Wang Jianxing , Zhang Jianyu , Hu Xiyao , Wang Dong , Tang Ben Zhong
Published: November 2020

An aggregation-induced emission-active self-assembly was fabricated to study the functions variation in morphological transformation. The excited-state energy of this self-assembly was dissipated via radiative decay showing strong emission, and the energy dissipation pathway could switch to non-radiative decay, offering high generation efficiencies of reactive oxygen species upon in situ proton-induced morphological transformation.
Catechol as a New Electron Hot Spot of Carbon Nitride
Authors: Lee Kimoon , Kim Jeonga , Choi Saehan , Jo Nyeongbeen , Nam yoonsung
Published: November 2020

Graphitic carbon nitride (CNx) is a promising photocatalyst with visible-light sensitivity, attractive band-edge positions, tunable electronic structure, and eco-friendliness. However, their applications are limited by a low catalytic activity due to inefficient charge separation and insufficient visiblelight absorption. Here we show a new method to generate the electron polarization of CNx toward the edge via the chemical conjugation of catechol to CNx for enhanced photochemical activity. The electron-attracting property of catechol/quinone pairs induces the accumulation of photoexcited electrons at the edge of conjugated catechol-CNx hybrid nanostructure (Cat-CNx), , serving as an electron hot spot, as demonstrated by positive open-circuit photovoltage, which increases electron transfer through the conjugated catechol while suppressing charge recombination in the CNx. The catechol conjugation also widens the photoactive spectrum via the larger range delocalization of π-electrons. Accordingly, Cat-CNx reveals a 6.3 higher reductive photocurrent density than CNx. Gold ion reduction dramatically increased due to the enhanced electron transfer activity of Cat-CNx in cooperation with the inherent hydrophilicity and metal chelating property of catechols. Cat-CNx exhibits a 4.3 higher maximum adsorption capacity for gold ions under simulated sun light illumination compared to CNx. This work suggests that the post-modification of CNx’s π-conjugated system is a promising route to handle varied shortcomings and broaden availability of CNx.
Assessing Capacity Loss Remediation Methods for Asymmetric Redox Flow Battery Chemistries Using Levelized Cost of Storage
Authors: Rodby Kara , Perry Mike , Brushett Fikile
Published: November 2020

Redox flow batteries, a promising grid-scale energy storage solution, have an open architecture that can facilitate a broad range of redox electrolytes. Vanadium is the most mature chemistry, which is largely due to its symmetry, where all active species are based on a single parent compound, that allows for inexpensive crossover remediation via rebalancing; however, the industry has increasingly sought chemistries with lower-cost and higher-abundance redox couples. Most chemistries cannot be configured symmetrically, though, necessitating research into capacity-recovery methods for asymmetric chemistries. In this work, we adapt our previously developed levelized cost of storage model, which tracks capacity fade and recovery and evaluates the costs across the battery’s lifetime, to analyze two classes of asymmetric chemistries, those with active species of finite or infinite lifetimes, and their respective remediation options. For finite-lifetime chemistries, we explore active-species replacement to counter decay. For infinite-lifetime chemistries, we consider two methods for addressing crossover: imposition of pseudo-symmetry via the spectator strategy and elimination of crossover via membranes with perfect selectivity. We anticipate this framework will help guide the evaluation and design of new redox chemistries, balancing the desire for low capital costs with the need to remediate capacity repeatedly and inexpensively.
Protein Acylation by Saturated Very Long Chain Fatty Acids and Endocytosis Are Involved in Necroptosis
Authors: Pradhan Apoorva , Lu Daniel , Parisi Laura , Shen Shichen , Berhane Ilyas , Galster Samuel L. , Bynum Kiana , Monje-Galvan Viviana , Gokcumen Omer , Chemler Sherry , Qu Jun , Kay Jason G. , Atilla-Gokcumen Ekin
Published: November 2020

Necroptosis is a form of regulated cell death that is characterized by membrane permeabilization. This permeabilization is responsible for the inflammatory properties of necroptosis and is critical for disease states involving this process. We previously showed that very long chain fatty acids (VLCFAs) are functionally involved in necroptosis, potentially through protein fatty acylation. Here, we define the scope of protein acylation by saturated VLCFAs during necroptosis. We show that mixed lineage kinase like protein (MLKL) and phosphoMLKL, key proteins for membrane permeabilization, are exclusively acylated during necroptosis. Reducing the levels of VLCFAs decreases their membrane recruitment, suggesting that acylation by VLCFAs contributes to their membrane localization. Acylation of phosphoMLKL occurs downstream of phosphorylation and oligomerization and appears to be, in part, mediated by ZDHHC5 (a palmitoyl transferase). We also show that disruption of the clathrin-mediated endocytosis increases cell viability during necroptosis, likely by removing phosphoMLKL from the plasma membrane.
STRATEGIC EVALUATION IN OPTIMIZING THE INTERNAL SUPPLY CHAIN USING TOPSIS: EVIDENCE IN A COIL-WINDING MACHINE MANUFACTURER
Authors: Shenoy Dilip U , Sharma Vinay , H C Shiva Prasad,
Published: November 2020

Most of manufacturing firm aims to optimize their Supply Chain in-terms of improved profitability of their products through value Addition. This study takes a critical look into the factors that affect the Performance of internal supply chain with respect to specific criteria’s. Accordingly, ranking these factors to get the critical dimensions of supply chain performance in the manufacturing industry. A semi-structured interview with the pre-defined set of questions used to collect the responses from decision makers of the firm. Multi criteria decision-making tool called TOPSIS is used to evaluate the responses and rank the factors. The results of this indicate that supplier relationship and inventory planning were most principal factors positively influencing on-time delivery of the product, production flexibility, cost savings, additional costs. This study helps to identify and optimize the process parameters using objective and subjective evaluation approach. The combined influence of thought process of manager to optimize the internal supply chain is extracted in this work
STRUCTURAL, THERMAL AND THERMO-MECHANICAL ANALYSIS OF FOUR STROKE PETROL ENGINE PISTON USING CAE TOOLS
Authors: Sathishkumar S. , Kannan Dr.M.
Published: November 2020

As we are known numerous reciprocating parts is contained in IC Engine which are responsible for giving the motion. The abnormal piston working is given poor performance in comparison of other parts. The main intention of this research is to investigate and analyse the stress distribution of automobile piston at definite engine Condition. In this paper pressure (Mechanical), thermal (Heat) and thermo-mechanical analysis is accomplished by help of CAE Tool. The constraint used for the analysis is pressure of operating gas, temperature and material properties of piston. In this research piston are designed for a single cylinder four stroke petrol engine using CATIA V5R20 and analysis is performed by ANSYS 14. Two different material are induced in this investigation. First one is Aluminium alloy and second is Cast Iron. In this end of the Results are shown and a comparison is made to find the most suited material for splendour automobile vehicle piston by various CAE analyses.
EFFECTS OF WELDING PARAMETERS, TIME INTERVAL AND PREHEATING ON RESIDUAL STRESS AND DISTORTION OF JOINING ST52 STIFFENER RING IN AN AISI 4130 TUBULAR SHELL
Authors: Haghighi Alireza M. , Samani Farhad S.
Published: November 2020

Stiffener rings and stringers are used commonly in offshore and aerospace structures. Welding the stiffener to the structure causes the appearance of residual stress and distortion that leads to short-term and long-term negative effects. Residual stress and distortion of welding have destructive effects such as deformation, brittle fracture, and fatigue of the welded structures. This paper aims to investigate the effects of preheating, time interval and welding parameters such as welding current and speed on residual stress and distortion of joining an ST52-3N (DIN 1.0570) T-shape stiffener ring to an AISI 4130 (DIN 1.7218) thin-walled tubular shell by eleven pairs of welding line in both sides of the ring by means of finite element method (FEM). Results in tangent (longitudinal), axial and radial directions have been compared and the best welding methods proposed. After the comparison of the results, simultaneous welding both sides of the ring with preheating presented as the best method with less distortion and residual stresses among the studied conditions. The correctness of the FEM confirmed by the validation of the results.
IMPACTS OF AGRICULTURAL MECHANIZATION: A CASE OF PALPA DISTRICT OF NEPAL
Authors: Prasad Khanal Arjun
Published: November 2020

A study was conducted in 2019 to assess the impacts of agriculture mechanization in Palpa district of Nepal. Two hundred and twenty farmers who have been the beneficiaries of mechanization programs launched by any of the three different tiers of government and other non-governmental organizations were selected randomly by adopting snowball method and interviewed. Majority (72.3%) of the farmers of the study area were found adopting mini tiller as the result of which the bullock driven plough was found almost replaced by it. Majority (92.7 %) of the farmers had experienced increase in cost of production for first and second year and decrease in cost of production afterwards. Most of the farmers experienced increase in working efficiency and improvement in the living standard after the adoption of machines in different agriculture operations. Agriculture mechanization was found having positive impacts in productivity of agriculture products because majority (89%) of the farmers experienced increase in productivity of their agriculture products after mechanization. Assuming those farmers who did not experienced any increase in productivity of their agriculture products (11%) as 100% majority (43.5 %) of them had pointed out lack of technical skills to operate machines as the major factor responsible for it. Therefore, the concerned authorities should be focused in proper arrangements of trainings and capacity building programs for farmers to operate those machines in addition to purchase and distribution of machines for the transformation of existing traditional agriculture into commercial, modern and mechanized agriculture.
THE ROLE OF CONCAVE WALLS OF INNER CYLINDER ON NATURAL CONVECTION IN ANNULAR SPACE
Authors: Laidoudi Houssem
Published: November 2020

The objective of the present research is to provide correct results of the roles of physical and geometrical parameters on the natural convection in an annular space of square cylinders. The physical parameters of the fluid are considered as follow: Prandtl number (0.71, 7.01, 50 and 100) and Rayleigh number (10 power 3, and 10 power 4). However, the studied geometrical modification is based on converting the walls of inner square cylinder from the straight form to the concave form. The work is well done numerically. The predicted results are mainly shown as representative contours of streamlines and isotherms. It was understood that the concave walls of inner cylinder reduces the heat transfer rate that can be useful to use this form in insulating applications instead of straight walls.
THE ASSESSMENT OF INHIBITIVE EFFECT OF CYMBOPOGON CITRATUS ON MARINE CORROSION OF MILD STEEL
Authors: Ramli Rosliza , Sultan Ibrahim Mohamed Ali Syed
Published: November 2020

Numerous extensive efforts have been done to acquire the applicable green corrosion inhibitors in order to decrease the corrosion rate of the materials. The corrosion inhibition of mild steel is vital for technology due to the increased industrial applications of these materials. In this report, the inhibitive action of Cymbopogon Citratus on the marine corrosion of mild steel was evaluated. The inhibition efficiency was calculated using weight loss measurement method, electrochemical measurement and inhibitor mechanism analysis. It was found that, Cymbopogon Citratus exhibited a very good performance as a green corrosion inhibitor for mild steel corrosion in seawater. All the experimental methods used for this project show that the presence of Cymbopogon Citratus in the seawater significantly decreases the corrosion rates and further decreasing the corrosion rates as the concentration of Cymbopogon Citratus increases. To sum it up, the inhibition efficiency increases with an increase in Cymbopogon Citratus concentration.
EFFECTS OF WELDING CURRENT AND SPEED ON RESIDUAL STRESS AND DISTORTION OF JOINING ST52 ROLLED PLATE IN DIFFERENT WELDING SEQUENCES
Authors: Aminifar Ali , Haghighi Alireza M.
Published: November 2020

Welding is a process of permanent joining parts by different welding methods. Residual stress and distortion are the most common phenomena of this process. Reduction of the residual stresses, distortion and improving the quality of welding are the important subjects of this field. Determining and analyzing the residual stresses and distortion is the main step for these purposes. Welding sequences, speed and current are the most effective parameters of this process. In this study, effects of welding parameters such as welding speed and current, in order to reduce residual stress and distortion of welding ST52 rolled plate in different welding sequences have been studied with three-dimensional thermo-mechanical finite element model by means of ANSYS APDL. By comparing different considered situations, the most efficient welding methods with the least residual stress and distortion by considering different welding sequences have been suggested. It obtains that welding the ST52 rolled plate from edge to edge with higher current and lower speed is the best option in fatigue and load-bearing situations, and welding from the center to both sides simultaneously with lower current and higher speed is the best option for assembly problems.
Health Education on Physical Changes in the Menopause in Jatinom Village, Kanigoro Blitar
Authors: Agustina Ika , Choirunnisa Miftah
Published: November 2020

The changing of menopause times often cause discomfort or anxiety. Women who were initially active in various activities in the community can be disrupted because of various complaints caused by changes in menopause, it will be exacerbated if women do not realize that sigh are caused by physical changes during menopause. The importance of information for older women, especially women aged 48-60 years is given medical education through enlightenment on physical changes at menopause. By this health education, mothers understand better in facing the physical changes they experience. The results of the questionnaire given to mothers found that 10 menopause mothers (83%) did not know the physical changes experienced and 2 menopause mothers (17%) experienced changes that occurred in the mother's body. Providing good and correct education in menopause is very much needed, not just once but it must be repeated, for example, to continue to participate in the elderly posyandu activities so that mothers are aware and fell comfort with their conditions
The Prevention of Anemia on Pregnant Women through Counseling and The Administration of Fe Tablet in Jatinom, Kec. Kanigoro, Kab Blitar
Authors: Ulfa Maria , Monica Laily Prima , Wibisono Wahyu
Published: November 2020

In Indonesia, the anemia prevention program for pregnant women is done by providing iron supplements as many as 90 tablets during pregnancy. However, many pregnant women refuse or do not comply with this recommendation for various reasons. The compliance of taking Fe tablets is less than 90% of iron tablets that should be taken. The compliance of pregnant women to take iron tablet is an important factor in ensuring an increase of hemoglobin levels of pregnant women. The right information and right method related to anemia become very important for the community and become very important in order to reduce the risk of maternal death. The purpose of this community service was to increase the knowledge of pregnant women about anemia, the impact of anemia, and the importance of fe tablets. The method was in the form of counseling and giving Fe tablets to pregnant women classes in Jatinom, Kec. Kanigoro, Kabupaten Blitar. The result showed the knowledge and compliance of pregnant women in consuming Fe tablets were 5 participants (25%) in good category, 10 participants (50%) in fair category, 5 participants (25%) in lack category. After the counseling process, there was an increase in the knowledge and compliant to take the Fe tablet. There were15 participants (75%) in good category and 5 participants (25%) in moderate category
PRIORITY DIRECTIONS FOR FORMING THE ENTREPRENEURIAL ENVIRONMENT AND CULTURE AMONG YOUTH
Authors:   Academy of Public Administration under the President of the Republic of Uzbekistan, Xolov Aktam
Published: November 2020

The article discusses the priorities of forming a business environment and culture among young people. The results of a comprehensive sociological study on the formation of an entrepreneurial environment and culture among young people were also analyzed and proposals and recommendations for the formation of an entrepreneurial environment and culture among youth were developed.
THE IMPORTANCE AND IMPORTANCE OF MULTI-FUNCTIONED MALL TRADING PORTALS IN IMPROVING THE MOVEMENT OF GOODS IN THE MARKET OF DIGITAL ECONOMY
Authors:   Samarkand economy and service institute of the Republic of Uzbekistan, Pardayev Sherzod
Published: November 2020

The article highlights the importance and significance of the multi functional modular trade and marketing portal promoted on the Commodity Exchange of the Republic of Uzbekistan, which is associated with the movement of goods in the commodity market through e-commerce in the digital economy
GOVERNMENTAL SUPPORT OF INNOVATION IN THE SPHERE OF TOURISM
Authors:   Samarkand economy and service institute of the Republic of Uzbekistan, Suyunova Kamilla
Published: November 2020

The article substantiates the need for innovative development of tourism, as well as the role and main directions of state support for innovative activities in the field of tourism
Pemodelan dan Simulasi Medan Listrik pada Jaringan Distribusi 20 kV Double Feeder Konstruksi 3B
Authors: Herawan Mohamad Ramdan Febriana , Hamdani Deny
Published: November 2020

ABSTRAKPeralatan listrik yang bertegangan dapat menyebabkan medan listrik di sekitar peralatan listrik, mengetahui besaran nilai medan listrik menjadi hal yang penting, untuk mengetahui paparan medan listrik pada lingkungan sekitar. Metode numerik memainkan peran penting dalam perhitungan medan listrik untuk studi medan listrik yang terkait dengan aplikasi tegangan tinggi. Charge Simulation Method merupakan salah satu metode numerik yang dapat digunakan sebagai pendekatan untuk menghitung distribusi medan listrik dan medan magnet pada penghantar yang bertegangan. Paper ini membahas pemodelan medan listrik di sekitar jaringan distribusi double feeder kontruksi 3B dengan menggunakan Matlab untuk mengetahui jarak ambang batas aman pengaruh medan listrik bagi manusia. Simulasi dilakukan pada setiap fasa konduktor dengan jarak ukuran setiap fasa diatur sesuai kontruksi yang diterapkan pada PLN. Hasil penelitian menunjukan bahwa simulasi menggunakan MATLAB pada distribusi 20 kV double feeder kontruksi 3B, hasil medan listrik maksimal pada ketinggian 1 meter atau pada ketinggian rata-rata manusia, memiliki besaran 1,54 kV/meter. Besaran medan ini lebih kecil dari batas minimal standar WHO dan SNI, sehingga masih masuk batas aman.Kata kunci: medan listrik, charge simulation method, jaringan distribusi, distribusi kontruksi double feeder 3BABSTRACTElectrical equipment can cause an electric field around the equipment, knowing the value of the electric field becomes important, to determine the exposure of the electric field to the surrounding environment. Numerical methods play an important role in the computation of electric fields for the study of electric fields related to high voltage applications. Charge Simulation Method is one of the numerical methods that can be used as an approach to computate the distribution of electric and magnetic fields in a live conductor. This paper discusses the modeling of the electric field around the distribution double feeder 3B construction network using Matlab to determine the safe threshold distance of the influence of the electric field for humans. Simulation experiments are carried out on each phase of the conductor with the distance of each phase adjusted according to the applied construction to PLN. The results showed that the simulation using MATLAB on the distribution of 20 kV double feeder construction of 3B, value of the maximum electric field at an altitude of 1 meter or at an average height of humans, has a magnitude of 1.54 kV / meter. The magnitude of this field is smaller than the minimum WHO and SNI standards, so it is still safe for humans.Keywords: electric field, charge simulation method, distribution network, 3B double feeder construction distribution
Contribuições do estudo do meio na formação de educadores do campo para o ensino de Ciências no semiárido Piauiense
Authors: Silva Alexandre Leite dos Santos , Lopes Suzana Gomes
Published: November 2020

O objetivo desse artigo é discutir sobre as contribuições do estudo do meio para a formação inicial de educadores do campo para o ensino de ciências na região do semiárido piauiense no primeiro semestre de 2018. Os dados foram coletados na forma de questionários e gravações em vídeo de relatórios apresentados em seminários de 19 licenciandos de um Curso de Licenciatura em Educação do Campo. A análise dos dados mostrou que o estudo do meio se coaduna com os fundamentos da Educação do Campo. Os resultados, analisados na perspectiva crítico-social dos conteúdos, indicaram que o estudo do meio pode contribuir para o ensino contextualizado de Ciências; o fortalecimento da identidade campesina; o ensino com pesquisa; o trabalho coletivo e a reflexão crítica da realidade.
Modalidades e recursos didáticos empregados durante o estágio curricular supervisionado obrigatório em um curso de licenciatura em Ciências Biológicas
Authors: Paulino dos Anjos Aline Cristina , Messias Martins Bartieres Edineia , Aparecida Vasconcelos Micheli , Ribeiro de Moraes Alessandra
Published: November 2020

Considerando a importância da diversificação de modalidades e recursos didáticos, procedeu-se à análise de como os mesmos foram utilizados para as oficinas didáticas realizadas por alunos-estagiários do curso de licenciatura em Ciências Biológicas da Universidade Estadual de Mato Grosso do Sul/Unidade Universitária de Mundo Novo, junto a escolas públicas. Foram consultados os relatórios do Estágio Curricular Supervisionado em Ciências e Estágio Curricular Supervisionado em Biologia produzidos durante os anos de 2013 a 2015. Os recursos didáticos foram agrupados em quatro modalidades: “demonstração”, “aula prática”, “instrução individualizada” e “simulação”. No Estágio Curricular Supervisionado em Ciências o recurso que predominou foram os slides, enquanto no Estágio Curricular Supervisionado em Biologia foram os cartazes. De uma forma geral, a percepção dos alunos-estagiários foi de que o emprego de recursos didáticos estimulou o envolvimento dos alunos, aumentando o interesse em relação aos temas tratados, o que pode ter contribuído para uma aprendizagem mais significativa.
O CRAS como espaço não formal no ensino de Química: reflexões de desafios na formação docente
Authors: Rodrigues Breno Dias , Souza Alex Kidd da Silva , Trevisan Inês
Published: November 2020

O objetivo deste relato de experiência é refletir sobre alguns dos principais desafios presentes ao planejar e executar atividades pedagógicas em Química na prática docente em formação inicial, tendo como foco os espaços não formais de educação. A intervenção aconteceu em um Cento de Referência e Assistência Social (CRAS) no município de Barcarena-PA, envolvendo adolescentes, em uma sequência didática que tinha como tema central o refrigerante. Trata-se de uma abordagem qualitativa que envolveu análise textual discursiva para interpretação do material empírico e dos fatos vivenciados no diário de bordo. Como resultado, evidenciou-se alguns desafios na primeira incursão docente de acadêmicos ao vivenciar as práticas em espaços não formais, sendo os desafios categorizados em estruturais e pedagógicos, apontando ainda alternativas para sua superação. Todavia, considera-se viável desenvolver atividades de ensino em espaço não formal, pois várias são as maneiras de se organizar atividades atrativas com estratégias que privilegiam momentos interativos.
A construção da identidade docente na formação inicial dos professores de Ciências Naturais
Authors: Souza Juliana Brandão de , Dias Viviane Borges
Published: November 2020

A construção da identidade docente está associada à compreensão de saberes necessários para a atuação da prática em sala de aula. Diante da necessidade de fundamentar práticas pedagógicas condizentes com a realidade dos alunos, é fundamental compreender qual o papel da formação inicial na construção da identidade de futuros professores. O artigo tem como objetivo compreender quais os saberes necessários para a construção da identidade dos professores de Ciências Naturais durante o processo de formação inicial.  A pesquisa é de natureza qualitativa, do tipo revisão bibliográfica, e a coleta de dados foi baseada na busca de artigos que tratam sobre a formação da identidade docente durante o curso de formação inicial de professores de Ciências, publicados em periódicos nacionais, classificados nos estratos  A1 a B1, no período de 2009 a 2019. A partir dos resultados obtidos, foi possível identificar que a formação inicial, quando proporciona a relação entre teoria e prática, visando favorecer a reflexão do que se deve saber para ministrar uma docência de qualidade, contribui de forma significativa na formação de saberes necessários para que o futuro professor possa conduzir de forma autônoma e crítica a função social de ensinar.
Concepções de professores sobre a Resolução de Problemas
Authors: Guimarães Joice Silva Mundim , Oliveira Guilherme Saramago de
Published: November 2020

Esta pesquisa constitui parte da Tese de Doutorado em Educação, intitulada “Concepções de Professores sobre a Resolução de Problemas, vinculada institucionalmente ao Programa de Pós-Graduação em Educação (PPGED) pela Universidade Federal de Uberlândia (UFU). Este estudo busca identificar, analisar e discutir as concepções dos professores que ensinam Matemática sobre seu trabalho com os conteúdos nos anos iniciais do Ensino Fundamental, delineando uma proposta de ensino à luz das perspectivas teóricas e científicas da Resolução de Problemas (RP) que alcance o ensino-aprendizagem-desenvolvimento dos estudantes. A abordagem metodológica foi a pesquisa qualitativa, com os desdobramentos da pesquisa teórica, juntamente com os instrumentos questionário e entrevista para realizar o trabalho de campo. Assim, as concepções dos professores identificadas na coleta de dados nos levaram a analisar e refletir sobre como tem acontecido a abordagem metodológica da RP, nos conduzindo ao desenvolvimento de uma organização didática diferente no trabalho com os conteúdos matemáticos. Para isso, utilizamos a teoria de Davydov, que propõe um processo de ensino-aprendizagem-desenvolvimento dos conteúdos matemáticos pautado no movimento de ascensão do abstrato ao concreto que marca a formação do pensamento teórico do estudante.