bluuebunny/crossref_metadata_2025 huggingface dataset:
Российский конференционный взрыв: масштабы, причины, дальнейшие действия
Authors: Sterligov Ivan
Published: March 2021

This paper (in Russian) deals with the topic of excessive growth of conference papers of Russian authors in Scopus and Web of Science databases. We present international comparisons of publication, citation and internationalization trends for conference papers for 50 countries to show anomalous growth for Russia in recent years. We proceed to sectoral analysis to show that the universities are mostly affected, not the Russian academy of sciences, and hypothesize that such behavior stems from increased government evaluation pressure and simplistic bibliometrics usage, which conforms to the trend observed in other countries. The paper also includes a brief review of the market for organizing local conferences and indexing them in the Web of Science and Scopus via major international publishers, and the notion of virtual (pre-epidemic) predatory conferences. We conclude with several policy recommendations.
Explaining Inequalities of Homeschooling in Germany during the first COVID-19 Lockdown
Authors: Sari Elif , Bittmann Felix , Homuth Christoph
Published: March 2021

Current studies suggest that the COVID-19 pandemic is worsening existing social inequalities in the field of education worldwide. We argue that the pandemic is especially challenging for students from socially disadvantaged and educationally deprived homes as parental engagement and resources are hugely important to guide and support the learning process during the school closure period.To examine how well parents were able to help their children with schoolwork during the homeschooling period in Germany, we used data from the German National Educational Panel Study (NEPS) collected during the first homeschooling period in May/June 2020. Taking known mechanisms of inequality of educational opportunity into account, we explore the effects of parents’ aspirations and cultural, social, and economic capital on the ability to help their children.Our results show that although the majority of parents were able to provide good support with schoolwork, we found the expected inequalities due to social background. Low educated parents are twice as likely to be unable to provide sufficient support compared to highly educated parents. In our multivariate analyses, family resources show a significant positive effect on the likelihood that parents were able to help.Moreover, regardless of the social or cultural capital endowment of the parents, good technical equipment in the household is associated with a higher probability of support. Thus, ensuring technical home equipment could be a way to promote an educationally supportive learning environment across all social groups.
Equity-oriented Criteria for Project Prioritization in Regional Transportation Planning
Authors: Krapp Agustina , Barajas Jesus , Wennink Audrey
Published: March 2021

Transportation inequities, consequences of decades of auto-oriented planning alongside discriminatory land-use and transportation planning and policy decisions resulting from structural racism, severely impact opportunities for people of color and other marginalized populations. While a growing body of work has examined inequities with respect to long-range transportation planning, less research examines how equity is incorporated in short-term planning processes via the Transportation Improvement Program. This research reviewed how the metropolitan planning organizations (MPOs) that serve the 40 largest US urbanized areas used equity-based criteria for transportation project prioritization in regional planning. Just over half deployed at least one equity criterion for allocating transportation funds, which fell into one of six categories with varying degrees of complexity and potential for impact. While most MPOs included equity in their prioritization criteria, the methods could be improved to better align with more complete definitions of transportation equity, focusing on how targeted groups are defined, more comprehensive methods for equity evaluation, and an increase in the weight that equity is given in prioritization. MPOs and other agencies implementing transportation projects should adopt a justice-oriented framework for project prioritization that ensures that projects first affirmatively remedy historical inequities and work with affected communities to adopt appropriate and meaningful solutions
Analysis of Displacement of Vibrating of Mass Spring Due to Opposition Force
Authors: Pokhrel Puskar R. , Lamsal Bhabani , Kafle Jeevan , Kattel Parameshwari
Published: March 2021

Employing the model equation for mass spring system, which is of second order differential equation, we analyze the displacement with various opposition forces applied on the mass of the spring. We observe that if there is no external force on the mass of the spring, the opposition force causes the displacements of mass of spring. We also analyze the system by finding its analytic and numerical solution, and compare their results.
Seasonal Diversity of Birds in Nagarjun Forest of Shivapuri Nagarjun National Park, Kathmandu, Nepal
Authors: Jha Praveen Kumar
Published: March 2021

Nagarjun forest of Shivapuri Nagarjun National Park plays a significant role in the conservation of avifaunal diversity, but there are very few studies on birds of such local biodiversity hotspots in Nepal. The objective of the present study was to obtain information on seasonal diversity, species richness and relative abundance of birds in Nagarjun forest. The study was carried out from August 2019to June 2020 covering two seasons (autumn and spring). A total of 97 species of birds belonging to 10 orders and 42 families were recorded from three trails. Total22 Mackinnon’s lists were produced resulting 97 bird species recorded from entire field survey. Passeriformes was recorded as the most dominating order represented by 69 species. Mackinnon’s listing and direct observation methods were used to survey birds and Shannon-Weiner diversity index was used for data analysis. Relative abundance showed that most of the species were rare (54%) followed by uncommon (20%), very common (15%) and common (11%). Shannon-Weiner diversity index showed higher value for spring (H = 3.895) than autumn (H =3.807) and evenness was also higher in spring (E= 0.899) than autumn (E = 0.887).The result indicated higher species richness in spring with 76 species than autumn with 73 species. Based on the Shannon–Weiner index, the overall species diversity was highest in the trail III.
A Study of Practical Examinations: Provision and Practices
Authors: Karki Tek Mani
Published: March 2021

Tribhuvan University, Faculty of Education has introduced four-year annual B. Ed. program in 2015. The Department of English Education has of fereda course with theory plus practice in nature each year in this program. One of the courses with this nature is ‘Research Methodology in English Education’, introduced in the fourth year. Concerning the practical portion of this course, this paper highlights the variations of research reports and explores the challenges faced by the subject teachers (internal examiners) and the students selecting five affiliated campuses applying convenient sampling procedure in Bagmati province. Five research reports (one from each campus) selected randomly were analyzed, five teachers and five students (one from each campus) purposively selected were interviewed to gather information, and the data were interpreted thematically. Considerable amount of variation appeared in the research reports in terms of format, content, and citations and referencing style. Challenges occurred when the teachers did not receive clear guidelines from the concerned authorities to uniform the practical works. Students’ irregularities seemed another challenge for quality improvement in research works. The challenges can be minimized by implementing the course guidelines in practice. For this, the concerned authorities can organize several programs to support the teachers and to attract the students attending the classes regularly at the campuses.
Healing Pain through Dance: A Critical Reading of Adhikari’s “Khuchching!”
Authors: Pokharel Badri Prasad
Published: March 2021

This paper makes an attempt to analyze the healing pain through dance in Dinesh Adhikari’s poem “Khuchching” by applying cultural trauma perspective. The poem’s idea is similar to New Zealand’s tribal dance Haka. The poem shows a poor and insurgency affected persona living with traumatic experience and fleeing away from his grief and finally takes refuge to dance which helps him relieve with pains and suffering. Similarly, Haka, a traditional dance of a tribal group – Maori, is performed to pacify the pain and helps them strengthen themselves to face more challenges and strife courageously. In doing so, I have used the critical insight of Caruth as well as cultural ingredients of Haka dance as theoretical parameters to analyze the primary text. Here, I examine the poem linking it with the aim of performing the tribal dance Haka which would, subsequently, help one get relief from personal trauma to the conflict generated consequences in the lives of affected people and their socio-political factors associated with contemporary Nepali society. Discussing the expected findings, this article centers on the common people’s aspirations and embedded peace in the society.
Restarting Law and Development as a Model Sub-Discipline
Authors: Lempert David
Published: March 2021

The field of “Law and Development” finds itself with competing disciplinary and institutional agendas, overlapping and unclear definitions, borders, and scope, with no real rules of academic integrity or legitimacy to follow or to which it is held accountable. This article builds and applies an indicator with model standards for the structuring of academic disciplines to evaluate the legitimacy and integrity of this sub-discipline as an example for others. It then offers a model agenda for the basic social science questions to research and the technological applications that would help the sub-discipline to develop in a way that more appropriately fits a scholarly sub-discipline with applications of public benefit. The model approach offered in this article can be applied to emerging fields and sub-fields to identify those that are being shaped by politics rather than scholarly criteria; distinguishing them from legitimate fields and helping to strengthen their structures.
Optimal Upfront CLL Treatment during the COVID-19 Pandemic
Authors: Elhassadi Ezzat , Elhassadi Ezzat
Published: March 2021

The coronavirus disease 2019 (COVID-19) pandemic has challenged our healthcare systems and threatened individuals worldwide, particularly the most vulnerable elderly and those with medical comorbidities. The emergence of the new virus variant with its increased infectivity threats requires a quick response before the availability of evidence on managing patients with chronic lymphocytic leukemia (CLL) in this pandemic. Accordingly, this document prepared to provide informed opinions based on available evidence on how CLL patients were treated during the pandemic period.
The role of the digital competence of employees in the marketing management of agricultural enterprises
Authors:   National University of Life and Environmental Science of Ukraine, Balanovska T. , Wyrzykowska B. ,   Warsaw University of Life Sciences, Voskolupov V. ,   National University of Life and Environmental Science of Ukraine
Published: March 2021

The article reveals the role of the digital competence of employees in the marketing management of agricultural enterprises. It has been noted that marketing management is one of the novel approaches to managing an agricultural enterprise. It has been found that the successful all-levels marketing management of agricultural enterprises essentially depends on the holistic development of employees, so it is crucial to devote attention to professional knowledge of specialists, their ability to respond swiftly to market demands, ability to communicate, assume responsibility for performance results, as well as be engaged in life-long learning. It has been noted that cutting-edge technologies and equipment demand from employees to be digitally competent. The essence of digital competence has been revealed. The key components of the application of digital competence by agricultural commodity producers, which are crucial when looking for buyers and suppliers, or studying the market, have been considered. Since the state-of-the-art digital technologies require an Internet connection, the possibility of the rural population of Ukraine to have access to the Internet has been analyzed. It has been noted that the formation and development of the digital competence of employees constitutes an integral part of marketing management in agricultural enterprises thus improving the knowledge and skills of personnel when making managerial decisions, and providing competitive strengths and justification of enterprise development strategy.
Opening of agricultural land market in Ukraine
Authors:   National University of Life and Environmental Science of Ukraine, Kireitseva O. , Zhylin O. ,   National University of Life and Environmental Science of Ukraine
Published: March 2021

The article examines the functioning of agricultural land market in Ukraine. The basic parameters of the existence of legislation on land, the protection of the rights of owners of land plots, the possibilities of buying and selling in the context of land relations, the activities of agricultural holdings are analyzed. It is determined that land, labor and capital should function as goods in market economy, as factors of production. The significant role can be played by state that has capabilities for determination the presence of appropriate levers of power. The land, like other natural resources located within the territory of Ukraine, are objects of property rights of Ukrainian people. The Basic Law entrusts state with the function of protecting rights of all subjects of property as well as business rights. It has been determined that reforming of land sector is in one way or another affects interests of almost all citizens of country. The basis of agrarian reforms is land reform. The land market in Ukraine will be introduced on July 1, 2021. Citizens of Ukraine, legal entities of Ukraine, territorial communities and the state will be able to acquire ownership of agricultural land plots. The total area of agricultural land plots owned by citizen and legal entity may not exceed 10,000 hectares. It is determined that the limit of 100 hectares and the right to purchase the land plot have only individuals by January 1, 2024. Until January 1, 2030, the sale price of agricultural land plots allocated in kind (on the ground) to the owners of land shares (shares) cannot be less than their normative monetary value. Calculations are made in non-cash form. According to the Ministry of Economy, the average cost of renting a hectare of land in Ukraine is 1,700 hryvnas per year. After the introduction of the market, it can grow to 4000 hryvnas in 2024. According to government data, the average cost of hectare of land after the opening of the market will be about $ 2,200, but if the sale of land to foreigners is prohibited, this amount may be lower.
Economic efficiency of winter wheat production on the base of a typical farm of the central region of Ukraine
Authors:   National University of Life and Environmental Science of Ukraine, Kovalenko N. , Labenko O. , Kovalenko V. , Klymenko M. ,   National University of Life and Environmental Science of Ukraine,   National University of Life and Environmental Science of Ukraine
Published: March 2021

Ukrainian fertile lands and favorable climate conditions provide enormous opportunities for the agricultural sector development and formation of a highly efficient economic cluster. With a practical management approach, the agricultural potential could meet domestic needs and form a significant part of export earnings. The volume and quality of agri-food may satisfy not only internal food security but also contribute to the European, Asian and African. However, due to the longer production cycle compared to industry, agricultural enterprises at the stage of choosing a production program can not anticipate and respond quickly to changes in market conditions, increasing the competitiveness of goods and attractiveness to consumers based on existing production schemes. Therefore, the primary purpose of our study is to create a roadmap of management decisions when planning a production program through efficiency evaluation of growing winter wheat in a typical farm in Central Ukraine. For this purpose, we opt for a methodology based on marginal revenue, total costs, production and profitability thresholds along with payback of production factors. Due to climate change, the importance of growing winter crops is becoming increasingly essential and superior attention should be paid to improving their economic efficiency. Thus, the problem and relevance of the article is due to the requirements for sustainable successful operation of agricultural enterprises in a market environment and, therefore, the feasibility of using available calculation methods to assess the economic efficiency of production to facilitate management decision-making.
Strategic directions of the aquaculture development in Ukraine
Authors:   National University of Life and Environmental Science of Ukraine, Mykhalchyshyna L. , Sinenok I. ,   National University of Life and Environmental Science of Ukraine
Published: March 2021

For the development of aquaculture, each country must develop a strategic plan for sustainable aquaculture development, taking into account the spatial planning of aquaculture areas and ensure its implementation. It is important to take into account the experience of European countries, where the driving force of aquaculture is its social perception, which requires taking into account the interests of society when planning the development of the industry. It is important to further study the main factors of development of the fisheries industry in order to economically justify the implementation of measures and proposals that will contribute to the intensive growth of domestic aquaculture. The purpose of the article is to substantiate the strategic directions of sustainable development of aquaculture in Ukraine. Methods of analysis and synthesis, induction and deduction, comparison, analogy, abstraction, system approach are used to determine the principles of introduction of sustainable development of aquaculture. The generalization method is used to formulate conclusions on the practical aspects of implementing the strategy of sustainable development of aquaculture. It is established that in the new economic conditions unfavorable external and internal factors of aquaculture development have led to the dominance of imported fish and seafood in the Ukrainian market, so for the development of aquaculture it is necessary to develop a strategic plan for sustainable development of the industry. The sustainable development of aquaculture aims to create the conditions for aquaculture producers to supply sufficient healthy and safe fish to the market without leading to environmental degradation. The sustainable development of aquaculture aims to create the conditions for aquaculture producers to supply sufficient healthy and safe fish to the market without leading to environmental degradation. In the future, aquaculture in Ukraine should acquire the status of a sustainable industry that guarantees long-term preservation of jobs and development of rural and coastal areas, creating alternatives to traditional fishing both in terms of products produced and employment opportunities of the rural population. To guarantee employment and prosperity, aquaculture must become an economically viable and self-sufficient industry. The market should be the driving force behind the development of aquaculture; production and demand for fish must be balanced and any increase in production above market expectations should not lead to a decrease in producers' incomes. The product range needs to be expanded, and effective market strategies need to be put in place to balance aquaculture production and demand.
The Role of non-coding RNA in Cardiac Repair and Regeneration after Myocardial Infarction
Authors: Li Yongjun
Published: March 2021

Myocardial infarction (MI), one of the cardiovascular diseases (CVDs) with high incidence and mortality rate, seriously endangers human health. The poor ways of fully repairing and regenerating the infarcted myocardium may have an impact on people's life quality, therefore scientists have devoted continuously to exploring the way of myocardial repair after MI so as to strive for a better prognosis of these patients. In recent years, non-coding RNAs (ncRNAs) have been identified and become one of the exciting fields of research in the development of CVDs. In a wide range of areas, more and more research has found that ncRNAs play important roles in myocardial repair. This review mainly introduces some strategies for myocardial repair and the role or mechanism of microRNA (miRNA), long non-coding RNA (lncRNA), circular RNA (circRNA) and circRNA/lncRNA-miRNA-mRNA regulatory axis in the repair of myocardial tissue after MI, in order to build a better understanding and find new therapeutic targets for MI.
Single Coronary Artery Anomaly as a Different Ethiological Variant of Myocardial Ischemia
Authors: Dimitrova Viktoria
Published: March 2021

The single coronary artery is а rare congenital disorder, a subset of coronary artery anomalies. The clinical presentation varies from asymptomatic to malignant variants and is usually diagnosed during coronary angiography or post-mortem examinations. It may or may not be associated with another congenital heart disease. During the three years period and based on clinical indications, we performed selective coronary angiography of 7,996 patients. We discovered five clinical cases of a single coronary artery, which complies with the frequency of this anomaly 0.06% of the study population. All five clinical cases had moderate left ventricular systolic dysfunction and four of them had sinus rhythm disturbances – supraventricular cardiac arrhythmias or sinus tachycardia. Anomalous coronary anatomy may result in insufficient flow delivery even without coronary obstruction. It is important to specify the course of the ectopic artery. Cardiac ischemia could explain left ventricular systolic dysfunction and rhythm disorders. Significant coronary artery disease had three of them. The main goals of this research are to detect the frequency of single coronary artery anomaly among studied population, to illustrate the variety of clinical presentation of this disorder, related to anatomical variants of the anomaly, and to choose the most appropriate treatment decision, based on the present experience.
Indonesian Journal of Social Work Volume 4 Nomor 2 2021
Authors: Setianingsih Krisna Dewi , Sutisna Nono
Published: March 2021

Yayasan Lentera Surakarta adalah Lembaga Kesejahteraan Sosial Anak yang memberikan pelayanan kepada anak dengan HIV dan AIDS. Pada saat pandemi Covid-19 harus disesuaikan dengan kebijakan pemerintah yang mengikat dalam memberikan pelayanan kepada anak.Penelitian ini bertujuan untuk mendapatkan gambaran tindakan manajemen dan pengasuh Lentera Foundation dalam 1) mengakui ancaman dan risiko pandemi Covid-19 pada keselamatan dan kesejahteraan anak; 2) mengembangkan perlindungan dan pengasuhan yang tepat untuk anak selama pandemi Covid-19; 3) membangun kesadaran dan diri sendiri -Perawatan berbagai risiko pandemi Covid-19.Penelitian ini menggunakan pendekatan kualitatif dengan tujuh orang informan yaitu pihak pengelola dan pengasuh Yayasan Lentera.Pengumpulan data dilakukan dengan wawancara, focus group discussion (FGD), dan observasi. menunjukkan bahwa layanan yang diberikan oleh Lentera Foundation kepada anak-anak dengan HIV dan AIDS sama dengan situasi normal, hanya saja pada saat Covid-19. Pandemi para pengurus dan pengasuh punya tugas tambahan untuk melakukan pencegahan dan melindungi anak dan warga. Yayasan agar tidak terpapar Covid-19. Masalah yang dialami dalam upaya melindungi anak asuh dari risiko terpapar Covid-19 adalah kurangnya sarana dan prasarana yang sesuai dengan protokol kesehatan, kurangnya pengasuh baik secara kuantitas maupun kualitas untuk membantu anak mematuhi protokol kesehatan, pembelajaran online, melakukan kegiatan pengisian waktu luang agar anak tidak merasa bosan selama berada di Yayasan Karena adanya batasan sosial, sulitnya kesadaran anak dalam mematuhi protokol kesehatan. Kata Kunci: Pelayanan Sosial, Anak Dengan HIV dan AIDS, Pandemi Covid-19
Use of time management methods by students for self study at the university
Authors:   Vinnitsa National Technical University, Lyalyuk Elena , Lyalyuk Andre , Polishchuk Alexandr ,   Vinnitsa National Technical University
Published: March 2021

The concept of time management and its importance for students during independent study at the university is considered in the article. The existing methods of time management are analyzed and their essence is revealed. Each student can develop their own method of time management based on general rules and principles, taking into account their style and rhythm of life, priorities, personal qualities, strengths and weaknesses. The analysis of use of methods of time management by students is made. Practical recommendations for improving the efficiency of time management methods are offered. Time management is aimed at organizing their own and working time. The student at the university must be aware of the correct distribution of time in accordance with personal interests and interests of work.During self-study, you need to use the time with the maximum number of tasks, divided into intermediate tasks with small breaks, which will not lead to fatigue and overload. To do this, you need to have time for rest and healthy sleep. The effective implementation of the methods of "time management" depends on a person's consciousness and his desire to work rationally for himself. To solve the problems of time management among students, you can build a wheel of life, which will help determine the main priorities of life, optimize the use of time and direct it to productive self-study. With the help of the life wheel of balance, you can look at your life from the side and find out what is missing and what is in excess. It will help to understand and solve some problems.Periodic performance of self-audit and analysis of the managerial personality improves the rational use of time and its allocation for self-study
Introduction
Authors: Chua Liana , Grinberg Omri
Published: March 2021

This introduction sets the scene for the special issue through an overview of extant
anthropological approaches to witnessing and a discussion of the collection’s three
main themes: truths, technologies and transformations. It lays the groundwork for
a distinctly anthropological approach to witnessing in three ways. First, by drawing
together disparate ethnographic takes on witnessing, it expands the anthropological
analysis of witnessing beyond its conventional foci (e.g. legal or media settings).
Second, it makes a case for attending not only to witnessing’s semantics and subjectivities but also to its structural, relational, performative and material dimensions. Finally, it puts ethnographic analyses of witnessing in dialogue with reflexive discussions of anthropological witnessing, asking what each can bring to the other. In a ‘post-truth’ moment, when our interlocutors are producing their own testimonies and representations, it is vital to rethink what it means for anthropologists to (bear) witness – and who/what we do it for.
Committee as Witness
Authors: Douglas-Jones Rachel
Published: March 2021

This article explores the ethics review committee as a contemporary witness to the conduct of biomedical research. Ethics committee work is an internationally growing form of deliberation and decision making, a technology of anticipation that grants researchers access to experimental spaces, research funds and publication venues. Drawing on ethnographic work with a range of ethics committees across the Asia-Pacific region, I explore the metaphorical extension of logics of seeing into bureaucratic forms of ethics review. My analysis untethers the witnessing voice from an individual ‘point of view’, focusing on the attestive assemblage and its documentation. By exploring the committee as a form of collective attestation, I aim to show witnessing as a form of ethical work, for ethical ends.
Afterword
Authors: Dave Naisargi N.
Published: March 2021

This Afterword explores the volume’s ambivalent relationship to witnessing, and argues for a synaesthetics of seeing. Drawing on literature fictive and otherwise, with an emphasis on animality (fictive and otherwise), it reflects on how sound and touch enable us to see.
The problem of security convicted persons in the custodial settings of the ministry of justice of Ukraine
Authors: Shkuta Oleh
Published: March 2021

The article explores the problem of defining the concept of security of convicted persons. The author analyzed the current normative legal acts, in particular, the Constitution of Ukraine, the Criminal Code of Ukraine, the Criminal Enforcement Code of Ukraine, the Laws of Ukraine “On Pre-trial Detention”, “On Ensuring the Safety of Persons Participating in Criminal Procedure” and departmental by-laws - legal acts. The article presents the opinions of domestic scientists of penitentiary orientation regarding the content of the concept of security convicted persons in the custodial settings in the science of criminal enforcement law and the current legislation. The article identifies six forms of ensuring the right of convicts to personal security: determination by the administration of the criminal correctional facilities the criterion of personal security of convicts; legal regulation of the personal security of prisoners; the authorities using risk-management measures; further resolving the issue of the place of serving the convicted person; ensuring the safety of convicts in connection with their involvement in criminal proceedings. The author conducted a historical analysis of the formation and development of security issues of convicts in the normative acts of the Ukrainian Soviet Socialist Republic and independent Ukraine. The author argues that there are many reasons for the threats to the personal safety of prisoners in criminal correctional facilities. The article defines the concept of security convicted persons in the custodial settings - it is regulated by the current legislation and is provided by the staff of the bodies and criminal correctional facilities the protection of the rights and freedoms and legitimate interests of the prisoners while serving their sentences.
The Relationship Between U.S. High School Science Teacher’s Self-Efficacy, Professional Development, and Use of Technology in Classrooms
Authors: Aljuzayri Zahrah
Published: March 2021

There have been a limited number studies that examined the relationship between professional development (PD) and self-efficacy with technology tool use, specifically concerning high school science teachers. The main goal of this quantitative study was to identify any specific correlations between science teacher self-efficacy and the professional development science teachers received for those specific classroom technologies. Participants were comprised of a randomized sample set of high school science teachers throughout 46 different US States.The data was collected by using an online survey via the Qualtrics survey platform. The survey was sent to 3000 science instructors and 104 in total completed it. The results suggest that science teachers’ efficacy was high with course management systems and student wireless or digital devices, but not for social networking/media. There was no significant connection between technological self-efficacy and PD for related technology tools. However, it is possible that science teachers are already highly efficacious in terms of technology, and observational studies are recommended to see when and how teachers actually use technology in their classrooms.
PERTUMBUHAN SEMAI KELOR (Moringa oleifera) ASAL NUSA TENGGARA TIMUR DENGAN PERLAKUAN PERBEDAAN MEDIA TUMBUH
Authors: Kurniawan Hery
Published: March 2021

Kelor is a plant species that has many benefits because of its nutritional content. The World Health Organization (WHO) has declared Moringa as a miracle plant, because it has saved many lives, especially children in many poor countries. Kelor has the opportunity to be developed in Sumatra, especially Riau as an alternative food crop, source of some important nutrients such as vitamins, proteins and anti-oxidants. Kelor from East Nusa Tenggara (NTT) is known to have the best quality in Indonesia. Its development in Riau requires preliminary research related to the growth of seedlings in several growing medium that have characteristics similar to those in Riau. This study uses a completely randomized design with treatment of growing medium in the form of three treatments, namely black soil, podsolic soil and peat soil mixture. The analysis was carried out descriptively and inference to the parameters of the percentage of life and height of Moringa seedlings. The results showed that seedling growing medium from top soil + fuel husk were best for Moringa seedling growth. Seedling growing media from top soil  sub soil or from top soil alone can be the best alternative afterwards.
TINGKAT KEBERHASILAN SISTEM AGROFORESTRI DI DESA RUMBIO KECAMATAN KAMPAR KABUPATEN KAMPAR
Authors: Faridatul Hasanah Riska , Ervayenri Ervayenri , Insusanty Enny
Published: March 2021

This study aims to measure the success rate of the Agroforestry System in Rumbio Village. This research was conducted for 2 (two) months in April s.d. June 2019. Tools and materials used in the study were chest boards, label papers, questionnaires, interview guides, tally sheets, GPS, cameras, guards, phi bands, gauges, compasses, and plastic straps. While the objects studied were rubber plants, agarwood plants, and honey bee cultivation. Data collected in this study are primary and secondary data. Data collection methods used are (1) survey method with sampling techniques for measuring rubber and aloes plants; (2) filling out questionnaires and census interviews for honey bee cultivation. The results showed the success rate of kaet plants was around 53% and agarwood plants were 28%, this was due to several factors such as floods that occurred in 2017, lack of assistance, lack of plant maintenance, and for aloes plants there was no shade at the beginning of planting. As for the cultivation of honey bees, the results of this study indicate that the cultivation of honey bees is beneficial.
POTENSI LIMBAH PADAT PERKEBUNAN KELAPA SAWIT DI PROVINSI RIAU
Authors: Novia Yanti Rina , Hutasuhut Ika Lestari
Published: March 2021

Oil palm plantations produce solid biomass waste, namely replanting stems, midribs, empty fruit bunches (EFB), shells and fruit fibers. In 2018 the area of ​​oil palm plantations in Indonesia reached 14.3 million ha and the area of ​​oil palm plantations in the Riau Province until 2018 was 2.7 million hectares. The availability of oil palm plantation waste in Riau Province, such as waste production in gardens and palm oil mill waste (PKS) needs to be studied further, so that the amount of oil palm biomass waste will be illustrated. The purpose of this study was to calculate the potential for biomass waste from oil palm plantations in the form of replanting stems, midribs, EFB, shells and fruit fibers. The method used in this study is calculating waste based on mass balance and the data were analyzed using linear regression. The results of this study indicate an increasing trend in the amount of waste produced. The most potential amount of waste is oil palm empty bunches (TKKS) of 6 663 956 tonnes per year on average.
KEANEKARAGAMN FUNGI MIKORIZA ARBUSKUA (FMA) LAHAN KAMPUS UNIVERSITAS LANCANG KUNING (UNILAK
Authors: Ervayenri Ervayenri
Published: March 2021

Arbuscular mycorrhizal fungi (AMF) are naturally scattered and symbiotic with various tree species, AMF is able to improve plant adaptation to extreme soil conditions. About thirty-seven years Unilak, has been built in Riau Province, precisely in Rumbai Pekanbaru City. How is the existence of FMA on the developed campus land? Is the focus of this paper. Soil sampling for AMF observation refers to the modified ICRAF method. The extraction of AMF spores followed the pour and wet filter method followed by centrifugation techniques. Based on the morphological characteristics of the extracted AMF spores, it was identified to the genus level. The research series showed that the presence of AMF on the Unilak campus area contained 13 types of spores from the genus Acaulospora, Gigaspora, Glomus and Sclerocystis.
Kenimani-Kenimatoni Organisational Practice : An Africanised Construct of Superordinate-Subordinate Relationships in a University System
Authors: Isaiah Omodan Bunmi
Published: March 2021

This theoretical formulation responded to the quest for Africanised epistemic space to construct the hidden indigenous practices into the world of knowledge. Kenimani (that others may not have) and Kenimatoni (that others may not reach up to one’s status), a Yoruba language, one of the African languages was rationalised as an organisational theory of relationships capable of understanding and interpreting people’s actions, and inactions in organisations. The exploration was guided by examining how the underlying meaning and principles of Kenimani-Kenimatoni can be exemplified to the leadership and followership syndrome of organisational relationships. The article was designed using inductive and deductive experiential exploration to present the argument. Yoruba and its beauties were examined to open a linguistic permutation for the analysis. The two Yoruba words ‘kenimani’ and ‘kenimatoni’and their conjunctional framing as peculiar to university community were elucidated to reflect university organisational relationships. The dilemma of positivism and the negativism and the principles embedded in the Kenimani-Kenimatoni organisational practices were uncovered. The Kenimani-Kenimatoni epistemic standpoint was also exemplified with the conclusion that African society is rich in knowledge and practices. Therefore, an Africanised practice like Kenimani- Kenimatoni can explain relationship dynamics in organisations, though this is open to further scholastic discourse.
Features of Graduate Underemployment in South Africa : A Study in Mthatha, Eastern Cape Province
Authors: Mayekiso Cwenga , E. Obioha Emeka
Published: March 2021

This paper articulates the patterns and feel of graduate underemployment in Mthatha, a South African town in the Eastern Cape Province. Foregrounded on Peter Blua’s Social Exchange Theory, this study adopted a quantitative approach. A sample of 60 respondents was drawn from underemployed graduate population through a combination of stratified and random sampling techniques. Data collected from survey (questionnaire) were analysed with appropriate tools in the Statistical Package for the Social Sciences. The study found that majority of underemployed graduates are between 21 and 25 years of age, married, hold bachelor’s degrees in Social Sciences. Gender, qualification type and level of qualification have no significant influence on determining underemployed graduates’ choice of occupation as single and combined variables or factors. While only very few (5%) of the underemployed graduates are never happy at work, femaleness, older graduates, Africans, higher qualification, higher basic salary and longer years of underemployment best predict happiness at work, although not at significant level, except for basic salary. A majority of graduates (73.3%) do sometimes consider leaving their current jobs, even when there are no alternatives. This is influenced by maleness, older graduates, being Whites, higher qualification, lower basic salary and lower years of underemployment. Lack of networking was found to be the most important factor in graduate underemployment, followed by lack of experience and gender not being significant. This study recommends policy intervention by state, where there is legislation that provides for entry level jobs that may not require previous experience. Also, there should be another legislation that protects the underemployed through salary regulation and incentivising of employers that engage workers in such capacity.
Functional analysis of thermal conductivity and viscosity of quasi-solid capillary-porous bodies under varying air environment conditions during museum storage
Authors: Dovhaliuk Volodymyr , Chоvniuk Y. , Shyshyna M. , Moskvitina A.
Published: March 2021

Fundamental analysis of the thermal conductivity and viscosity of quasi-solid capillary-porous bodies (CPBs), which are museum exhibits’ materials, is presented. The air environment parameters change leads to a temperature gradient in the CPBs. Non-uniform heating of the solid medium, in particular, quasi-solid CPB, is not accompanied by convection, and heat transfer is carried out only due to the mechanism of thermal conductivity. In order to create a mathematical model of this process in CPB, a system of partial differential equations in time and space coordinates is obtained. The resulting system adequately describes the thermal conductivity process in quasi-solid CPBs. The anisotropy of CPB’s thermal parameters, especially, its coefficients of thermal expansion and thermal conductivity, is also taken into account. Theoretically, the deformation process during motion in quasi-solid CPB is taken as reversible. In real conditions, the process is thermodynamically reversible only when it occurs at an infinitesimal speed. Then at each point in time, the CPB is able to establish a thermodynamic equilibrium state. Real motion occurs at a finite velocity, the CPB is not in an equilibrium state at any given moment, so there are endogenous processes that try to get it into a balanced condition. The occurrence of these processes causes the irreversibility of motion, which acts, in particular, through the dissipation of mechanical energy, which eventually turns into heat. The energy dissipation is caused by irreversible processes of thermal conductivity and processes of internal friction or viscosity. The dissipative function for isotropic and anisotropic cases was determined in order to analyze the viscosity of quasi-solid CPBs. The viscosity in the equations of motion can be considered by replacing the stress tensor with a tensor, which additionally takes into account the "dissipative" stress tensor.
Nonlinear problem of structural deformation in interaction with elastoplastic medium
Authors: Solodei Ivan , Petrenko Eduard , Zatyliuk Gherman
Published: March 2021

The use of numerical methods in the calculation of machines and structures, taking into account their interaction with the elastic-plastic medium is largely determined by the complexity or even impossibility of analytical calculation due to the complexity of structural schemes, heterogeneity of material features, uneven soil layers, implementation of step-by-step work execution technologies and so on.
Compatible calculations of structures and nonlinear basis, which are described by modern mechanical and soil models in one problem is a significant technical problem. And neither the existing “problem-oriented” software packages, nor the “universal” ones - do not fully contain such models.
The tasks solution is possible only within the framework of numerical methods, the most common of which is the finite element method (FEM). The construction of the calculated finite element model raises many complex questions that require additional detailed study. In addition, the compliance with the state building norms and regulations is an important factor for further practical use.
The combination of the latest achievements in the field of structural mechanics and soil mechanics is a promising direction for the development of effective approaches for building discrete models of spatial systems “structure-nonlinear base” for solving applied problems.
On the basis of modern numerical implementations of the finite element method the article presents the theoretical foundations of the analysis of deformation processes of machines and structures in their contact interaction with the elastic-plastic nonlinear soil medium within the three-dimensional spatial problem taking into account the previous stress state and load history. The methodology of construction of computational models of joint deformation and mutual influence of rigid structures and essentially plastic external medium is developed, new special heterogeneous finite elements of SAFEM of general form with variable geometrical and physical-mechanical parameters and arbitrary boundary conditions for approximation of arrays of hardly connected reinforced soils are developed.
Size optimization of single edge folds for cold-formed structural members
Authors: Bilyk Serhii , Yurchenko Vitalina
Published: March 2021

Parametric optimization problem for single edge fold size in cold-formed structural members subjected to central compression has been considered by the paper. Determination the load-bearing capacity of the cold-formed structural members has been performed using the geometrical properties calculated based on the constructed “effective” (reduced) cross-sections taking into account local buckling effects in the section as well as distortional buckling effects.
Single edge fold size in cold-formed C-profile has been considered as design variable. Linear convolution of criteria, namely minimization criterion of design area of stiffener cross-section and maximization criterion effective area of stiffener cross-section which defines it reduced load-bearing capacity due to flexural buckling has been used as optimization criterion. The parametric optimization problem has been solved using the method of objective function gradient projection onto the active constraints surface with simultaneous correction of the constraints violations. In order to realize the formulated optimization problem, software OptCAD intended to solve parametric optimization problems for steel structural systems has been used.
Optimization results of the single edge folds for the cold-formed С-profiles manufactured by «Blachy Pruszyński» company, «BF FACTORY» company as well as «STEELCO» company have been presented by the paper. The results of the performed investigation can be used as recommendations for companies-manufacturers of the cold-formed profiles, as well as a guide for creation the national assortment base of the effective cold-formed profiles promoting wider implementation of cold-formed steel structures in building practice.