bluuebunny/crossref_metadata_2025 huggingface dataset:
Surface modified polythiophene/Al2O3 and polyaniline/Al2O3 nanocomposites using poly(vinyl alcohol) for the removal of heavy metal ions from water: kinetics, thermodynamic and isotherm studies
Authors: Karimi Zeynab , Khalili Reza , Ali Zazouli Mohammad
Published: June 2021

In this study, polythiophene/Al2O3 (PTh/Al2O3) and polyaniline/Al2O3 (PAn/Al2O3) nanocomposites in the presence of poly(vinyl alcohol) (PVA) as the surfactant were synthesized via in situ chemical oxidative polymerization method in aqueous medium. The synthesized nanocomposites were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD). Results indicated that the Al2O3 and poly(vinyl alcohol) influenced the properties of synthesized nanocomposites. The aim of this research was to investigate the sorption characteristics of polythiophene and polyaniline nanocomposites for the removal of heavy metal cations including Pb(II), Zn(II) and Cd(II) from aqueous solution. The factors that affected the adsorption equilibrium as well as the removal efficiency of the nanoadsorbents, i.e., contact time, metal ion concentration, pH and adsorption conditions were investigated in detail. From the kinetic results, it was concluded that the pseudo-second-order kinetic model was found to be the best at describing the adsorption process for Pb(II), Zn(II) and Cd(II) on PTh-PVA/Al2O3 and PAn-PVA/Al2O3. In addition, thermodynamic analysis suggests the endothermic and spontaneous nature of the present adsorption process with increased entropy on PTh-PVA/Al2O3 and PAn-PVA/Al2O3. The results suggest polythiophene, polyaniline and their nanocomposites have great potential to be used as efficient absorbent for the removal of heavy metal ions from water.
Therapeutic Abortion Methods in Women Referring to Educational and
Medical Centers in Shiraz
Authors: Akbarzadeh Marzieh , Alipanahpour Sedighe , Tayebi Naeimeh , Zarshenas Mahnaz
Published: June 2021

Background:

Abortion is one of the most common side effects of pregnancy, which has
had shown a steady or even growing trend over the past few decades despite extensive efforts in
prenatal care.

Objective:

This study aimed to investigate medical interventions for abortions in pregnant women
referring to educational and medical centers in Shiraz, Iran, in 2018.

Methods:

In this cross-sectional study, 437 pregnant women referred to Shiraz Educational and
Forensic Medicine Centers were selected. A questionnaire including demographic characteristics,
midwifery information and types of medical interventions was completed for each. Data were analyzed
by SPSS software using statistical tests.

Results:

According to the results of the present study, most subjects were aged 31-40 years (202
(46%)), had a high school diploma (183 (41%)), and were housewives (331 (57%)). Most of their
gestational age was in the range of 16-20 weeks (184 (41%)). There was also a significant positive
relationship observed between maternal age and gestational age (p = 0.01). Misoprostol and cervical
Foley were the most used methods in induced abortions with a forensic permit (44.3%), vaginal
misoprostol was the most used method in induced abortions with other indications (43.9%), and
most spontaneous abortions involved no intervention (41.9%).

Conclusion:

Considering the importance of the medical abortion method, it is suggested to be considered
for patients with different conditions in interventional studies. Also, the correct use of different
family planning methods and identification of factors affecting the use of contraceptives are
recommended after an abortion. Women’s education and men’s participation should be considered
in the prevention of high-risk and unwanted pregnancies.
Community-Based Screening for Cardiovascular Disease in the Capricorn District of Limpopo Province, South Africa
Authors: Malema Rambelani N. , Mphekgwana Peter M. , Makgahlela Mpsanyana , Mothiba Tebogo M. , Monyeki Kotsedi D. , Kgatla Nancy , Makgatho Irene , Sodi Tholene
Published: June 2021

Background:

The number of people who suffer and die from Cardiovascular Disease (CVD) is increasing at an alarming rate in low-and middle-income countries.

Objective:

The objective of the study was to screen communities using the non-laboratory INTERHEART Risk Score tool (NLIRS) to determine their level of risk for developing CVD.

Methods:

A community-based quantitative study was conducted in the Capricorn District of Limpopo Province. A total of 3315 participants were screened by 63 community health workers (CHWs) using the NLIRS tool. The tool covers the following items which are allocated different scores: Gender:male ≥55 years or female ≥65years=2; being a smoker or having stopped ≤12 months ago = 2; smoking1-5 cigarettes =2; 6-10=4; 11-15=6;16-20 a day and ≥20=11; indirect smoking last 12 months =2; having diabetes=6 and high blood pressure=5; parental history of heart attack=4; having stress and depression=3 each; consumption of salty and fried food, no vegetables or fruits each scored a 1; eating meat twice a day =2; being inactive =2; waist-to-hip ratio ≥.874-0.963=2 and ≥0.964=4. The scores were added and those who scored 0-9 were classified to be at low risk, 10-15 moderate and 16-48 at high risk.

Results:

On average 58% and 33% were found to be at low and moderate risk, respectively for developing CVD and 9% at high risk. The majority consumed salty, fried foods and meat and were inactive. Being hypertensive constituted 67% of being at high risk of developing CVD.

Conclusion:

Envisaged intervention will focus on preventive strategies for risk factors such as diet, exercise and hypertension. More males should be recruited to participate in future research to determine if the same results will be obtained.
Identification of Naturally Occurring Antiviral Molecules for SARS-CoV-2 Mitigation
Authors: Rana Shiwani , Kumar Prateek , Sharma Anchal , Sharma Sanjay , Giri Rajanish , S. Ghosh Kalyan
Published: June 2021

Aim:

This study aimed to virtually screen the naturally occurring antiviral molecules for SARS-CoV-2 mitigation based on multiple molecular targets using docking and molecular dynamics simulations.

Background:

The coronavirus catastrophe (COVID-19) caused by a novel strain of coronavirus (SARS-CoV-2) has turned the world upside down at an unprecedented level and has been declared a pandemic by the World Health Organization. It has resulted in a huge number of infections as well as fatalities due to severe lower respiratory tract sickness.

Objective:

The objective of this study was the identification of inhibitors against the crucial molecular targets linked with viral infection caused by SARS-CoV-2.

Materials and Methods:

In silico screening of twenty naturally occurring antiviral molecules was performed using the Autodock docking tool. Further, molecular dynamics (MD) simulations were performed on the most stable docked complex between cysteine-like protease or 3CL protease (3CLpro) and the best-identified inhibitor (bilobetin).

Results:

3CLpros is one of the very important molecular targets as it is involved in the replication process of the virus. In the present study, we have initially investigated the inhibitory potential of naturally occurring antiviral molecules against the activity of main viral protease (3CLpro) to put a halt to viral replication. The investigation had been carried out through docking of the molecules with 3CLpro. Based on the results, the three most potential molecules (bilobetin, ginkgetin and sciadopitysin) have been screened. Further, these molecules were subjected to checking their activity on other molecular targets like papain-like protease (PLpro), spike protein S1, RNA dependent RNA polymerase (RdRp), and Angiotensin-Converting Enzyme 2 (ACE2) receptor. In addition to 3CLpro inhibition, ginkgetin was also predicted as an inhibitor of PLpro. However, none of these three compounds was found to be effective on the rest of the molecular targets. Molecular Dynamics (MD) simulations of the most stable docked complex between 3CLpro and its best inhibitor (bilobetin) confirmed notable conformational stability of the docked complex under a dynamic state.

Conclusion:

Bilobetin alone or a combination of bilobetin and ginkgetin may be used to impede viral replication. These observations are solely based on the results from blind docking with protein molecules and need to be further corroborated with experimental results.
Modification of Activated Carbon from Coconut Shell Charcoal with Copper (CuCl2/AC, Cu(OH)2/AC, CuO/AC) for Adsorption of Paracetamol Contaminant
Authors:   Chemistry Department, Faculty of Mathematics and Natural Sciences, University of Brawijaya, Arianto Bambang , Setianingsih Tutik , Rumhayati Barlah
Published: June 2021

This study provides information about the physicochemical properties and performance of activated carbon combined with copper to remove paracetamol from waste models. The activated carbon (AC) comes from coconut shell charcoal. CuCl2 was used as the copper source which then combined with activated carbon (AC). The AC was obtained by activating the coconut shell charcoal using KOH and 500°C calcination for 10 minutes. Carbon functionalization were done using H2SO4 6M as an oxidizer and temperature of 80°C for 3 hours. The impregnation of activated carbon with CuCl2 produces CuCl2/AC, then the CuCl2/AC was reacted with NaOH 5M to form precipitation of Cu(OH)2/AC. CuO/AC composite was finally produced by calcining the Cu(OH)2/AC to 950°C for 5 minute. The composite was characterized by FTIR, SEM-EDX, XRF and X-ray diffraction. The adsorption of paracetamol with CuO/AC composite gave the best results with 95.56% efficiency.
Chemical Characteristics, Antioxidant Activity, Total Phenol, and Caffeine Contents in Coffee of Date Seeds (Phoenix dactylifera L.) of Red Sayer Variety
Authors:   Study Program of Chemistry, Faculty of Mathematics and Natural Sciences, Pakuan University, Warnasih Siti , Mulyati Ade Heri ,   Study Program of Chemistry, Faculty of Mathematics and Natural Sciences, Pakuan University, Widiastuti Diana ,   Study Program of Chemistry, Faculty of Mathematics and Natural Sciences, Pakuan University, Subastian Zuniar ,   Study Program of Chemistry, Faculty of Mathematics and Natural Sciences, Pakuan University, Ambarsari Laksmi ,   Department of Biochemistry, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, Sugita Purwantiningsih ,   Department of Chemistry, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University
Published: June 2021

Red Sayer is one of the date varieties from the United Arab Emirates. This variety is one type of dates that is imported into Indonesia and used as processed date palm juice producing waste, namely date seeds. Date seeds can be made into some coffee that is rich in antioxidants and does not contain caffeine. The purpose of this study is to determine the chemical characteristics, antioxidant activity, total phenol, and caffeine contents in coffee of the Red Sayer variety date seeds. Coffee of date seeds is made into powder and then analyzed for its contents of water, ash, protein, fat, carbohydrates and total sugar, besides its antioxidant activity, total phenol, and caffeine levels. The results of the analysis obtained are, as follows: 4.42±0.01% water, 1.17±0.04% ash, 8.55±0.64% protein, 7.34±0.07% fat, 78.52±0.76% carbohydrate, 16.39±0.01% total sugar, 23.81±0.22 µg/mL antioxidant activity (IC50) and 340.65±1.53 mg GAE / 100g total phenol, while caffeine is not detected. Red Sayer date seed coffee, therefore, can be a source of carbohydrates and natural antioxidants that does not contain caffeine.
Solid-Lattice Stem Optimization Design for Hip Implants
Authors: Castro Vera Kleber Leonardo , Al-Jweijati Mustafa
Published: June 2021

The goal of this study is analyzed and design a methodology to reduce stem mass, through topology and lattice optimization of a Ti-6Al-4V hip implant, meeting yield stress requirements. Four optimization cases were studied: Topology optimization (1), Lattice design 100% (2), Lattice design 50% (3), Lattice design 25% (4). Five load cases from a study were applied for each optimization cases: Combined (LC1), standing-up (LC2), standing (LC3), going up stairs (LC4), jogging (LC5). The optimized cases design reduced stem mass approximately by 30% (1), 5% (2) ,8% (3) and 2% (4), compared with the total stem hip Ti-6Al-4V implant.
Development of non-contact three-dimensional resonator applicator with non-invasive temperature measurement function
Authors: Kato Kazuo , Shindo Yasuhiro , Iseki Yuya
Published: June 2021

Cancer affects the lives of many people across the world. Indeed, it is the second leading cause of death globally. There are a number of existing cancer treatments but they have limitations. For example, many treatments destroy diseased tissue but also damage healthy tissue in the
process. Professor Kazuo Kato, Department of Mechanical Engineering Informatics, School of Science and Technology, Meiji University, Japan, is working to discover how cancer cells can be killed without harming the patient. This work centres on the principles that underlie hyperthermia, which
is a cancer treatment that can treat cancer without damaging the human body. It does this by exposing body tissue to high temperatures and cancer cells are more sensitive to heat than normal cells. Kato and the team are developing a hyperthermia system that is able to heat cells in various
tissues while using ultrasound images to non-invasively measure the 3D temperature distribution inside the human body. Using this technique, cancerous tissues can be heated and treated non invasively. An additional benefit of the novel ultrasound imaging system and cavity resonator that the
researchers are developing is that it is smaller and less expensive than existing treatments.
The development of a new muscle atrophy treatment method based on the elucidation of the sarcomere synthesis mechanism
Authors: Hayashiji Nozomi
Published: June 2021

Muscle mass is controlled via sarcomere levels and conditions brought on by long-term rest can lead to muscle wasting and significant decreases in sarcomere levels. Assistant Professor Nozomi Hayashiji, Center for Genomic and Regenerative Medicine, Juntendo University, Japan, is investigating
the mechanisms of skeletal muscle homeostasis in order to develop new treatments for muscle atrophy. There is little knowledge about how sarcomeres are synthesised within the human body due to a lack of suitable animal models but in 2015, Hayashiji made an important discovery surrounding the
existence of granulocyte colony-stimulating factor (G-CSF) receptor-deficient mice that demonstrated a resistance to adult sarcomere synthesis . This could pave the way to uncovering the mechanisms that regulate sarcomere production. Currently, Hayashiji is working to shed light on the factors
involved in the sarcomere synthesis pathway. To do this, she is using a synthesis resistance model and hopes the work will lead to new treatments to help patients affected by diseases that lead to muscle atrophy. Little is known about the expression of G-CSF receptors (G-CSFR) in muscle fibres
and Hayashiji is seeking to uncover the pathways relating to sarcomere production downstream of the G-CSFR and elucidate the role of G-CSFR in sarcomere synthesis using a G-CSFR-deficient mouse model that she developed in previous work. Ultimately, Hayashiji hopes that her research will have
an important impact worldwide, benefiting patients with muscle atrophy and also potentially proving beneficial within sports.
Correction: A COVID-19 Pandemic Artificial Intelligence–Based System With Deep Learning Forecasting and Automatic Statistical Data Acquisition: Development and Implementation Study (Preprint)
Authors: Yu Cheng-Sheng , Chang Shy-Shin , Chang Tzu-Hao , Wu Jenny L , Lin Yu-Jiun , Chien Hsiung-Fei , Chen Ray-Jade
Published: June 2021

UNSTRUCTURED

This is a correction for the published manuscript: A COVID-19 Pandemic Artificial Intelligence-Based System With Deep Learning Forecasting and Automatic Statistical Data Acquisition: Development and Implementation Study (J Med Internet Res 2021;23(5):e27806). The authorship list has been corrected with an equal contribution footnote and an “Acknowledgements” section has been added to the original published manuscript.
Corporate Social Responsibility : The Influence of Employee Engagement on Corporate Social Responsibility
Authors: Ali Bayad Jamal , Anwar Govand
Published: June 2021

Including more people being aware of corporate social responsibility, questions have arisen concerning whether there is a link between employee engagement and corporate social responsibility. Corporate Social Responsibility (CSR) is being considered as a significant component of a company's performance and activities, with the goal of increasing employee engagement. The goal of this study is to find out how employee engagement and corporate social responsibility are linked. The research was carried out in Erbil, Kurdistan, at vehicle dealerships. In total, 53 people took part in this study. According to the findings of this study, higher levels of corporate social responsibility can lead to higher levels of employee engagement, which supports the research hypothesis. The researchers recommended getting a larger sample size for similar studies in the future due to the study's restriction of a limited sample size
INFLUENCE OF SKIN EFFECT ON THE CALCULATION OF BUSBAR SYSTEMS HAVING RECTANGULAR CROSS SECTION
Authors: Raičević Nebojša , Vučković Ana , Perić Mirjana , Aleksić Slavoljub
Published: June 2021

One method for the calculation of current density distribution in a finite number of long parallel conductors, having rectangular cross section, is proposed in this paper. Numerical results aim to highlight the importance of the skin effect, which can be combined with the proximity effect. The method of superposition of these two effects was applied to the calculation of the electromagnetic field in electric power busbars systems. It has been shown that the skin effect has a much greater impact, especially when the conductors are thin and strong electric currents flow through them, so special attention is paid to its calculation. For numerical solution the integral equations are used. The function of current density is approximated by the finite functional series. This way leads to a very accurate solution with only two terms. Differential evolution method is applied for minimization of error function. To demonstrate the application of the proposed approach, numerical values for busbars are presented and compared with values obtained by using the finite elements method.
NUMERICAL MODEL OF A LOCAL CONTACT OF A POLYMER NANOCOMPOSITE AND ITS EXPERIMENTAL VALIDATION
Authors: Dmitriev Andrey I.
Published: June 2021

In the paper a model of a local contact of a polymer-based nanocomposite was developed within the method of a movable cellular automaton. The features of mechanical behavior of nanocomposite at the mesoscale level under dry sliding were studied with explicit account for the microprofile of the counterbody surface and the characteristic sizes of nanofiller. Factors that contribute to the conditions for the formation of a stable tribofilm of silica nanoparticles are analyzed. Two other parameters like sample geometry and the value of relative sliding velocity are also examined. It is shown that the thickness of tribofilm depends on stress conditions at the contact, and the friction coefficient decreases with increasing sliding velocity similar to one observed experimentally. To ensure the low friction properties of polymer nanocomposite, particles whose sizes are comparable with the characteristic size of the substrate microprofile are preferred. Results of numerical simulation are in good correlation with available experimental data.
THE ENVIRONMENT – A TERRA INCOGNITA FOR MOST SOCIOLOGISTS IN SERBIA
Authors: Miltojević Vesna
Published: June 2021

The issue of future societal development has captured the attention of scientists and experts from different fields and it is increasingly associated with environmental capacity and quality. The reach and the topicality of the issue were identified more than 40 years ago, while the solution materialized years later as a new paradigm of societal development – sustainable development. Considering the subject of study of sociology and its significance for steering societal development, this author was faced with the question of how and to what extent Serbian sociologists deal in their theoretical and empirical studies with the nature-society relationship and with sustainable development as a globally accepted development model. The discussion in this paper is based on the articles published in leading Serbian national journals in the fields of sociology and multidisciplinary sciences. The first findings reveal that sociologists less frequently deal with the environment and sustainable development than other social scientists, such as jurists, economists, psychologists, pedagogists, or andragologists. In this author’s opinion, one of the reasons for the relative marginalization of sociological research on the society-environment relationship is the relatively belated inclusion of specialized sociological disciplines such as social ecology or environmental sociology in the curricula of sociology academic programmes.
CHILDBIRTH POSTPONEMENT AND AGE-RELATED INFERTILITY IN SERBIA
Authors: Vasić Petar
Published: June 2021

Childbirth postponement has been a widely discussed topic since the 1990s, and was pushed to the top of the demographic agenda with the emergence of the Second Demographic Transition (SDT) paradigm. Mechanisms of childbirth postponement mostly explained by economists or sociologists were understood as rational-based decisions of individuals (or couples) trying to cope with the requirements of modern society. These mechanisms explained by income and consumption rationale (Becker, Modigliani), or by liberal and postmodern values (Van de Kaa, Lestheage), barely mention the physiological limitations of the individual choice. These limitations given by the human species reproductive span, with no exception, affect everyone trying to make an optimal reproductive choice. There are two main effects of fertility postponement on births and fertility rates. The first effect arises when couples postpone childbearing to a later age during a certain period and fewer births take place than in the absence of such postponement – the ‘tempo effect’. The second is a negative effect of fertility postponement on completed fertility and increased childlessness attributable to the age-related increase in infertility. This second negative effect in particular is our field of interest. The decline in cohort fertility due to postponement has been mostly studied using data on age at first birth and subsequent fertility, as well as models of fecundity, pregnancy loss and time to conception by age, which we will try to apply to the period data. Using period data, we will try to quantify the potential number of births that would occur in the absence of childbirth postponement in Serbia during the past two decades.
INTERNET KNOWLEDGE EXCHANGE AND CO-AUTHORSHIP AS FACILITATORS IN SCIENTIFIC RESEARCH
Authors: Waite Vesna
Published: June 2021

The aim of this paper is to determine to what extent the use of Internet as a way of acquiring information for research purposes is a successful tool. The Internet can facilitate the research in different ways, some of which are being presented in the paper. Researchers have access to a wide range of databases available on the Internet, also having the opportunity to use sites designed as a social media for academics such as ResearchGate or Academia. Apart from that, there exists some degree of correspondence between open access philosophy and hacker ethics which is being related to academia to point to the possible ethic value researches have towards one another. The paper focuses on advantages of using Internet for the purposes of facilitating research, at the same time introducing the topic of collaboration and co-authorship as vital in today’s ‘publish-or-perish’ academia world.
POSSIBILITIES OF IMPROVING READING OF SUBJECT-SPECIFIC TEXTS
Authors: Chmelíková Gabriela
Published: June 2021

In their future professional career the non-philological universities´ graduates will undoubtedly encounter the necessity of reading technical texts in a foreign language. Utilising the basic knowledge in linguistics, they should be able to orient easily in the text and context, use prediction, comprehend the texts without the word-by-word translation as well as be aware of making use of various progressive reading techniques, if necessary and useful. The author carried out a quantitative and qualitative research at three Slovak non-philological universities with the sample of 300 respondents. The research proved our anticipations that the situation regarding the university students´ reading skills level is quite serious as well as it proved that the improvement in this field is possible in a short time period.
ASSESSING LEARNERS’ ACADEMIC PHRASEOLOGY IN THE DIGITAL AGE: A CORPUS-INFORMED APPROACH TO ESP TEXTS
Authors: Dinca Andreea , Chitez Madalina
Published: June 2021

In the field of English for Specific Purposes (ESP), as in any other type of interlanguage, phraseology contributes significantly to successful academic writing (Biber and Barbieri 2007). For particular learner varieties, such as Romanian English, few studies have examined formulaic sequences (Hyland 2008), mainly focusing on lexico-grammatical patterns (Chitez 2012, 2014).  The proposed paper investigates the use of phraseology in Romanian students’ academic papers, written during their ESP courses, by adopting a double contrastive perspective: first, we contrast texts produced in two different disciplines (Literature Studies and Information Technology), and, second, we compare the academic phraseology in learner language with native speaker phraseology. For the analysis, we have compiled two corpora (ESP-LIT and ESP-IT), each consisting of 40 texts representing a discipline specific didactic genre, e.g. essay. As reference, we used the Academic Phrasebank (Davis and Morley 2018). The aim is to find out whether the use of academic formulaic expressions differs according to the discipline and the extent to which students integrate expert academic phrases into their writing. The methodology can be replicated for different language learning settings.
DEVELOPING ARGUMENTATIVE LITERACY AND SKILLS IN ESP STUDENTS
Authors: Gudkova Kira V.
Published: June 2021

The paper deals with the problem of argumentation literacy in the field of university ESP teaching. It presents the analysis of arguments that university students put forward while writing argumentative essays as part of their final English tests. The analysis concerns essays written by students at various levels of command of English, namely B2 and C1 levels. The analysis is aimed at showing connection between students’ language ability and their argumentative ability. The findings obtained stress the necessity to develop in ESP students argumentative literacy, that can be considered as one of the main soft skills needed in all spheres of professional and academic life.
DEVELOPMENT OF FUTURE TEACHERS’ PROJECT COMPETENCE TO DESIGN LEARNING PROCESS OF GE, ESP, LSP
Authors: Kniazian Marianna , Khromchenko Olena , Sushchenko Larisa
Published: June 2021

The article discusses the problem of the formation of future teachers’ project competence to design learning process of General English (GE), Language for Specific Purposes (LSP) and English for Specific Purposes (ESP). We used the questionnaire to identify the interest of the third-year students in learning GE, methods, as well as factors which influence the study of GE at Odessa I. I. Mechnikov National University. The methods of expert assessment and self-assessment were used to identify the level of project competence, based on such indicators, as the ability to determine the current level of language and professional training of students, their interests and skills; the ability to single out relevant information and communication technologies that are optimal for teaching GE, ESP and LSP in each group of students; the ability to differentiate methods to enhance the interest of students, create a positive emotional atmosphere in the classroom; the ability to determine the prospects for the development of personal and professional qualities of students; the ability to select the best methods for each student to study GE, ESP, LSP using on-line, e-learning. The data reflects levels of formation of project competence. In order to form this competence of future teachers, we have developed the project activities and creative tasks, aimed at the formation of skills and knowledge about the organization of learning process of GE, LSP and ESP.
CHALLENGES AND ADAPTABILITY OF LANGUAGE TEACHERS TOWARDS VIRTUAL CLASSROOMS DURING COVID 19
Authors: Satpute Ketki
Published: June 2021

The outbreak of COVID 19 has locked down entire country and created a crisis situation. It compelled all Educational Institutions to close down.  To keep teaching-learning process continuing, massive shift is being observed from physical classrooms to virtual classrooms. Language plays a key role in learning. Hence meaningful language learning is a must. Creating a conducive learning environment to teach languages effectively online, necessitates the use of virtual classroom by Language Teachers. However, it may create various challenges, unless the mindset of the teachers is positive and ready to adapt to new situations. Present study aims to find out challenges faced by the language teachers and their adaptability towards online teaching during COVID pandemic.  The researcher used descriptive survey method. The sample of the study included 51 language teachers teaching at college level in the state of Maharashtra. The sampling technique used was snowballing through known contacts.  The tool used was questionnaire. Data was analysed through descriptive and inferential statistical techniques such percentage, mean, standard deviation, graphical representation and ‘t’ test. The findings of the study revealed that there is significant difference between the challenges faced by urban and rural language teachers. But no significant difference was found among urban and rural language teachers in adaptability towards virtual classroom teaching. Though teachers tried to adapt to online teaching voluntarily, proper training in the use of e-learning platforms, apt digital tools for language development and development of new skill set are recommended to adapt to the new normal effectively.
STRATEGIES IN AUTONOMOUS LEARNING OF PROFESSIONALLY ORIENTED ENGLISH COMMUNICATION
Authors: Dmitrenko Natalia , Petrova Anastasiia , Podzygun Olena , Nikolaeva Sofiya
Published: June 2021

The article presents learning strategies that affect the process of students’ autonomous learning of professionally oriented English communication. The article provides various definitions and main characteristics of learning strategies used in the process of mastering English as a foreign language, and a number of factors that influence the students’ choice of learning strategies as well. The learning strategy of autonomous learning is defined as a course of a goal-seeking and controlled behavior, which is organized in a certain way and is chosen by students to perform the tasks that they set for themselves. The study describes an explicit model of mastering strategies based on instructions, Oxford’s Strategy Training Model (STL), which was introduced in autonomous learning of professionally oriented English communication. The main steps for the model implementation are presented and conditions, which are to be followed in its application, are identified. Experimental training with the use of the mentioned model of mastering strategies based on instructions was conducted among first-year students of the Pedagogical University, who are autonomously learning English as a foreign language. The analysis of the research results confirmed the effectiveness of the chosen model of mastering strategies based on instructions in the process of autonomous learning of professionally oriented English communication. The use of this model makes the learning process more efficient as it increases the student’s motivation and self-confidence, forms autonomy and independence, shows the interaction of foreign language learning strategies with other disciplines, makes the learning process open and clear, forms responsibility, and teaches introspection and task modification.
INNOVATIVE PEDAGOGY WITH COMPUTER-SUPPORTED COLLABORATIVE LEARNING IN TEACHING ENGLISH LANGUAGE
Authors: Juneja Kuldeep Kaur
Published: June 2021

Today’s society is technology motivated and the educational institutions call for new pedagogical ideas. An education process over hauling is needed in all aspects of education like curriculum improvement, teaching learning aspect, assessment, evaluation procedures, etc. One of the basic requirements for education in the future is to prepare learners for participation in a network, information society in which knowledge will be the most critical resource for social and economic development. Computer - Supported Collaborative Learning (CSCL) is one of the most promising innovations to improve teaching and learning with the help of modern Information and Communication Technology (ICT). Research on collaborative learning and the use of information and communication technologies has been integrated in the research area called Computer-Supported Collaborative Learning (CSCL). Collaborative technology refers to specific technological support for collaboration built into computer networks. Such collaborative technology in connection with corresponding pedagogical practices is usually called CSCL environment. Collaborative learning is very important in achieving critical thinking. Individuals are able to achieve higher levels of learning and retain more information when they work in group rather than individually. The knowledge of English has become a prime factor for a nation’s development as well as an individual’s development. The present paper highlights the distinction made between the collaborative use of technology and collaborative technology for teaching English to undergraduate students.
MACROECONOMIC ASPECTS OF PUBLIC-PRIVATE PARTNERSHIP
Authors: Đorđević Aleksandar , Rakić Biljana
Published: June 2021

Public-private partnership (PPP) has been getting momentum in market economies since the 1990s. Originally, it was created as a way of financing infrastructure projects, but its application since then has covered areas such as education, healthcare, high technology and many others. As the bulk of research in the domain of PPP is on the microeconomic impact and the analysis of the success of concrete PPP projects, the aim of this paper is to integrate these findings into a broader framework depicting macroeconomic aspects of public-private partnership. The existing literature, although not as extensive, points to several aspects that may affect economic development on the local, regional, and national levels, with greater adoption of PPP projects and their implementation. The paper introduces explanations for the elements of risk sharing between public and private partners, economic benefits, and costs in PPP, as well as the specific PPP channels of influence on the national economy and the PPP system dynamic model. One of the objectives is the analysis of the existing concept for estimating macroeconomic impacts of PPP, which could be used for evaluating its potential contribution to the growth and development of the national economy.
Reverse dynamisation: a modern perspective on Stephan Perren’s strain theory
Authors:   Department of Orthopedic Surgery, University of Texas Health Science Centre San Antonio, 7703 Floyd Curl Drive, MC 7774, San Antonio, TX 78229-3900, USA, Glatt V , Evans CH , Tetsworth K
Published: June 2021

The present review acknowledges the tremendous impact of Stephan Perren’s strain theory, considered with respect to the earlier contributions of Roux and Pauwels. Then, it provides further insight by examining how the concept of reverse dynamisation extended Perren’s theory within a modern context. A key factor of this more contemporary theory is that it introduces variable mechanical conditions at different time points during bone healing, opening the possibility of manipulating biology through mechanics to achieve the desired clinical outcome. The discussion focusses on the current state of the art and the most recent advances made towards optimising and accelerating bone regeneration, by actively controlling the mechanical environment as healing progresses. Reverse dynamisation utilises a very specific mechanical manipulation regimen, with conditions initially flexible to encourage and expedite early callus formation. Once callus has formed, the mechanical conditions are intentionally modified to create a rigid environment under which the soft callus is quickly converted to hard callus, bridging the fracture site and leading to a more rapid union. The relevant literature, principally animal studies, was surveyed to provide ample evidence in support of the effectiveness of reverse dynamisation. By providing a modern perspective on Stephan Perren’s strain theory, reverse dynamisation perhaps holds the key to tipping the balance in favour of a more rapid and reliable union when treating acute fractures, osteotomies, non-unions and other circumstances where it is necessary to regenerate bone.
ANALYSIS OF THE POTENTIAL OF ALTERNATIVE SOURCES ENERGY IN THE REPUBLIC OF SAKHA (YAKUTIA)
Authors:   EKATERINA YURIEVNA ARTYUSHEVSKAYA Amur State University, ARTYUSHEVSKAYA EKATERINA YURIEVNA
Published: June 2021

The potential of using alternative sources in the territory of the Republic of Sakha (Yakutia) is determined. The assessment of the existing alternative energy sources, taking into account the planned fuel economy, was made. The advantages and prerequisites for the development of «green energy» in the territory of the Republic of Sakha (Yakutia) are determined.
METHOD FOR ACCELERATING THE SEPARATION OF PROCESSED PRODUCTS BY FILTRATION IN LABORATORY STUDIES
Authors:   TATIANA YURIEVNA ERANSKAYA Institute of Geology and Nature Management, FEB RAS, ERANSKAYA TATIANA YURIEVNA
Published: June 2021

The use of a peristaltic pump in the filtration of dense nitric acid solutions accelerates this process in laboratory studies by 5-12 times compared to the flow method.
USE OF SECONDARY POLYETHYLENE GRANULES IN THE PRODUCTION OF POLYMERIC PRODUCTS
Authors:   ALYONA EVGENIEVNA SINICHUK Amur State University, SINICHUK ALYONA EVGENIEVNA , RODINA TATIANA ANDREEVNA ,   TATIANA ANDREEVNA RODINA Amur State University
Published: June 2021

The possibilities and problems of using polyethylene waste to obtain secondary polyethylene and its processing into products are considered. The use of secondary raw materials in the production of polymeric materials with high environmental properties is one of the ways to achieve sustainable development goals. The characteristics of the stages of the technological process from the collection and sorting of raw materials to the production of secondary granules are given.
SILVER IN THE GOLD DEPOSITS OF THE AMUR REGION
Authors:   NATALIA VALENTINOVNA MOISEENKO  Amur State University, MOISEENKO NATALIA VALENTINOVNA , AVRAMENKO SVETLANA MIKHAILOVNA ,   SVETLANA MIKHAILOVNA AVRAMENKO Amur State University
Published: June 2021

The main minerals of native silver hubs on gold deposits of the Amur region (Albyn, Malomyr, Pioner, Pokrovskoe) were studied. It has been established that silver has a positive correlation with gold, zinc, arsenic, antimony, lead and cadmium. There is a negative correlation of silver with zirconium, yttrium, hafnia, tantalum and rare earth elements.
RATIONAL CUT AS ONE WAY TO REDUCE ENVIRONMENTAL CHALLENGES
Authors:   GALINA PETROVNA RUZAIKINA  Amur State University, RUZAIKINA GALINA PETROVNA , KHARKOVSKAYA GALINA GERMANOVNA ,   GALINA GERMANOVNA KHARKOVSKAYA  Amur State University
Published: June 2021

The article proposes a solution to the problem of waste reduction (inter-pattern attacks) by using a rational cut of a fashionable poncho.
ANALYSIS OF INVESTMENT ACTIVITY OF THE AMUR REGION
Authors:   VALERIA ALEKSEEVNA ANDROSOVA  Amur State University, ANDROSOVA VALERIA ALEKSEEVNA , YAKIMOVA VILENA ANATOLYEVNA ,   VILENA ANATOLYEVNA YAKIMOVA  Amur State University
Published: June 2021

In the article, on the basis of the proposed methodology, the investment activity of the Amur Region is calculated. The dynamics of indicators included in the structure of indicators of investment activity in the field of attracting investments and their use is analyzed. Based on the calculated data, conclusions are drawn about the state of the investment activity of the region, about the influence of the considered integral indicators on it.
El proceso de captación en la organización terrorista ETA
Authors:   Investigador UNED, Beriain, España, Forján Anillo Cristóbal
Published: June 2021

El reclutamiento de activistas en bandas armadas, de manera general, se explica entre otras cosas por su relación con dos procesos psicosociales básicos, uno de radicalización y otro de polarización social, encaminados a disponer de militancia suficiente. Este artículo analiza desde una perspectiva empírica la captación de militantes de la organización terrorista ETA (Euskadi ta Askatasuna) en España, durante sus años de existencia, con base en la experiencia, investigación y contacto continuo con el mundo nacionalista radical, a partir del estudio de sumarios judiciales de atentados y desarticulaciones de comandos, y de diversos aportes de fuentes internas derivadas de entrevistas, así como de las posturas de expertos en el objeto de estudio, agrupando actitudes comunes no exclusivas y exponiendo limitaciones originadas especialmente en las charlas y entrevistas realizadas a vecinos y víctimas del grupo terrorista, que permiten concluir que ningún planteamiento generalista suple el desarrollo de investigaciones específicas, capaces de esclarecer las particulares causas de cada caso concreto. La mayoría de los expertos coincide en señalar la carencia de un conocimiento práctico exhaustivo del proceso de reclutamiento de terroristas y su comportamiento.
Análisis y evaluación del riesgo por inestabilidad del terreno en proyectos de urbanización. Un estudio de caso en Tijuana, México
Authors: Oliva-Gonzales Aldo Onel , Zambrano-Garcial Jorge , Berumen-Rodríguez Marco Antonio , Gallardo-Amaya Romel Jesús
Published: June 2021

En este artículo se explican aspectos relacionados con el riesgo producido por la inestabilidad del terreno y sus componentes (amenaza y vulnerabilidad), los diversos métodos y criterios para estimarlo, sus principales factores condicionantes y desencadenantes, y el estrecho vínculo con los procesos de urbanización en zonas de topografía accidentada y condiciones geológicas – geotécnicas complejas. Se describe un procedimiento que permite analizar y evaluar este riesgo en proyectos de urbanización, como herramienta esencial para la toma de decisiones sobre su factibilidad y viabilidad; y se presentan los resultados de su aplicación en un estudio de caso en la zona metropolitana de Tijuana, México.
Impacto laboral del graduado del programa de tecnología en procesos industriales de la Universidad Francisco de Paula Santander
Authors: Garzón-Agudelo Pedro , Benítez-García Yoneidy , Palacios-Alvarado Wlamyr
Published: June 2021

El presente proyecto se desarrolló con el propósito evaluar el impacto laboral del programa académico tecnología en procesos industriales de la Universidad Francisco de Paula Santander, tomando como base el análisis de la percepción académica impartida en la formación profesional. Se aplicaron instrumentos de recolección de información hacia las empresas del sector productivo de la región que mantienen vínculo con el programa académico a través de diversas modalidades de extensión, permitiendo contrastar las necesidades y expectativas demandadas por las organizaciones a nivel de competencias técnicas e integrales en su recurso humano con las habilidades demostradas por los graduados del programa académico.  Se determinó que la inserción laboral en los graduados de programa se ve afectada por la preferencia que tienen éstos de continuar su formación en el ciclo profesional de Ingeniería. Así mismo se pudo establecer que gran parte de las Organizaciones del sector productivo de la región identifican a los graduados del programa de Tecnología en Procesos Industriales por su buen desempeño laboral medido desde la existencia de habilidades transversales. Finalmente se estableció un plan de acción que describe oportunidades de mejora en los procesos de docencia, a fin de mejorar continuamente la armonía entre las competencias de los nuevos graduados y las necesidades de la sociedad en el ámbito regional
The sustainability environment in intelligent buildings. Steps to a: "Preventive healthy home automation"
Authors: Arencibia-Pardo Francisco Raúl , Peña-Rodríguez Belisario , Caicedo-Villamizar Surgei Bolivia
Published: June 2021

This work will expose the strength of prevention as an indissoluble part of the integral automation for real estate. Through a basic analysis we will propose a domotic system for sustainable projects with emphasis on artificial intelligence, the use of gardens, the control of polluting gases and pandemics. We will establish the need, in the new post-Covid modernity, of the paradigm shift
Strengthening of Columns with Different Innovative Composite Materials for RC Buildings without Sufficient Earthquake Resistance
Authors: MERCİMEK Ömer , GHOROUBİ Rahim , ÖZDEMİR Anıl , ANIL Ozgur
Published: June 2021

The Turkey includes the world's second most active faults and is geographically situated at a very high seismic activity. Research on strengthening RC (reinforced- concrete) structures without adequate earthquake resistance has become an extremely important issue. Taking into account the objectives of this research, an experimental study is designed to strengthen the columns without adequate earthquake resistance by using carbon-reinforced-fiber-fabric (CFRP) strips and textile-reinforced-mortar (TRM) layers with two separate types of advanced composite materials. The variables evaluated within the study horizon are the composite material type used for strengthening, the width of the strip, and whether or not the anchor is used at the point of strip overlap. In this experiment, nine RC column were produced and were tested by affecting axial load, which are the reference test specimens without strengthening and eight RC column test specimens strengthened with two separate types of composite material. The load-displacement behavior, initial stiffness value, energy dissipation capacities, ultimate load capacity and displacement ductility ratios have been measured according to the test results. It was also examined which of the two different composite materials used to strengthen the columns of the RC is more efficient in improving the columns performance.