bluuebunny/crossref_metadata_2025 huggingface dataset:
Self-Refine Learning For Data-Centric Text Classification
Authors: Guo Tong
Published: September 2021

In industry NLP application, our manually labeled data has
a certain number of noisy data. We present a simple method to find the
noisy data and re-label their labels to the result of model prediction.
We select the noisy data whose human label is not contained in the
top-K model’s predictions. The model is trained on the origin dataset.
The experiment result shows that our method works. For industry deep
learning application, our method improve the text classification accuracy
from 80.5% to 90.6% in dev dataset, and improve the human-evaluation
accuracy from 83.2% to 90.5%.
KCB-Net: A 3D Knee Cartilage and Bone Segmentation Network via Sparse Annotation
Authors: Peng Yaopeng , Zheng Hao , Zaman Fahim , Zhang Lichun , Wu Xiaodong , Sonka Milan , Chen Danny
Published: September 2021

Knee cartilage and bone segmentation is critical for physicians to analyze and diagnose articular damage and knee osteoarthritis (OA). Deep learning (DL) methods for medical image segmentation have largely outperformed traditional methods, but they often need large amounts of annotated data for model training, which is very costly and time-consuming for medical experts, especially on 3D images. In this paper, we report a new knee cartilage and bone segmentation framework, KCB-Net, for 3D MR images based on sparse annotation. KCB-Net selects a small subset of slices from 3D images for annotation, and seeks to bridge the performance gap between sparse annotation and full annotation. Specifically, it first identifies a subset of the most effective and representative slices with an unsupervised scheme; it then trains an ensemble model using the annotated slices; next, it self-trains the model using 3D images containing pseudo-labels generated by the ensemble method and improved by a bi-directional hierarchical earth mover’s distance (bi-HEMD) algorithm; finally, it fine-tunes the segmentation results using the primal-dual Internal Point Method (IPM). Experiments on two 3D MR knee joint datasets (the Iowa dataset and iMorphics dataset) show that our new framework outperforms state-of-the-art methods on full annotation, and yields high quality results even for annotation ratios as low as 5%.
«Come muovermi nel mio corpo da uomo»: il corpo maschile travestito nel teatro inglese, dai ragazzi attori a Caryl Churchill
Authors: Guarracino Serena
Published: September 2021

Among the many traditions of cross-dressing in performing practices, English Renaissance theatre plays a central symbolic role, especially considering the Shakespearean canon; however, only through the disruptive reading of gender and queer studies Shakespeare’s theatre has been studied as a transvestite theatre in which all female parts were played by boy actors. This article intends to show how this transvestite body opens a diachronic perspective on those theatrical practices of the second half of the twentieth century that rediscover the Elizabethan stage as a locus of artifice. Renaissance and twentieth-century theatre thus share the transvestite male body, not following a linear dynamic of model and imitation, but in a much more complex interweaving of echoes and returns. Through an analysis of two works by the playwright Caryl Churchill, Cloud Nine (1979) and A Mouthful of Birds (1986), the essay explores the transvestite male body as a place of dialogue between the Shakespearean and the contemporary scene, which share effeminacy -here understood as the staging of femininity on a male body- as a detonator for a wider crisis of binary categories.
E. Mari, O. Trukhanova, M. Valeri (a cura di), Un radioso avvenire? L’impatto della Rivoluzione d’Ottobre sulle scienze umane/Svetloe buduščee? Itogi i perspektivy 100 let spustja, Edizioni Nuova Cultura, Roma 2019, pp. 527.
Authors: Caprioglio Nadia
Published: September 2021

Book Review
Gasparo (Della) Vecchia, Architecture, and Russia
Authors: Di Salvo Maria
Published: September 2021

In the manuscript Architektura cyvilnaja (written in Venice in 1699), “Gasparo Vecchia” is mentioned by the Russian prince G.F. Dolgorukov as the author of a selection of Palladio’s and other famous architects’ texts, which were the sources Dolgorukov drew upon when writing his work. To my knowledge, Gasparo (Della) Vecchia has neither so far been properly identified nor his role studied in detail; in this paper, I try to shed some light on his relationship with Dolgorukov’s text by analysing a manuscript penned by the Italian artist and entitled Breve trattato d’architettura civile, here investigated for the first time. I shall argue that in Venice Della Vecchia continued to be involved with Russians for some time: a letter dated 1715 and addressed to Peter the Great contains his proposal for a garden with didactic ends, thereby demonstrating that Della Vecchia was fully aware of the tsar’s interests and goals.
A Brief History of Oil Refining
Authors: Larraz Rafael
Published: September 2021

Since its beginnings in the mid-nineteenth century, oil refining technology has evolved in a continuous process of adaptation to the demands of society, in matters as vital as the supply of energy, lighting, transportation or new materials to improve the quality of life. In that time, this has been one of the greatest examples of how the technological innovation of an industry contributes to the welfare and development of society. The objective of this manuscript is to describe the history of these technological advances and the causes that motivated them.
Does belonging to an appellation make a difference?
Authors: Gokcekus Omer
Published: September 2021

Assuming that wine markets are efficient, ultimately a bottle of wine’s cost and therefore its price should reflect its vintage, grape variety as well as how it is vinified. Yet, being an experiential good, a wine’s price is also closely related to its place of origin. If the designated viticultural area of wine is coming from is not considered, even in a relatively new wine country, wine makers may end up over-estimating the premium attached to vintage, variety as well as how it is vinified. Regression results indicate that, for Ontario wines, the over-estimations vary between 1% points and 18% points.
How do sparkling wine producers adopt a sub-appellation? Evidence from an exploratory study on heroic Prosecco Superiore Rive
Authors: Barisan Luigino , Galletto Luigi
Published: September 2021

This paper investigates why wineries producing Conegliano Valdobbiadene Prosecco Protected Denomination of Origin (CVPP) wines decided to adopt the sub-appellation (SA) “Rive” as a way to increase the value of their wines.

We estimated both a logistic and a linear regression to explain Rive SA firms’ choices and market growth drivers, respectively. By using data gathered from CVPP producers, we divided wineries into two groups, those that have adopted the Rive SA and those that have not. By means of a stepwise procedure, we categorized factors that were likely to explain the Rive SA choice within a set of structural, marketing and wine tourism-related variables.

The results showed that structural drivers such as the human capital of younger producers, pressure tank sizes, competitive positioning in the market and in the field of wine tourism hospitality, and involvement in ad hoc promotional activities (i.e., Primavera del Prosecco) have the greatest effects on the choice of the Rive SA. The synergistic effects of cellar door sales, small firm sizes and specific foreign markets (i.e., the United Kingdom and the United States) have emerged, on the other hand, as vital factors in the growth of the Rive SA in terms of market share.

The adoption of the Rive SA may play an important role in supporting and valuing the heroic viticulture-based economy and may help the CVPP Tutelary Consortium to appropriately undertake promotional strategies to differentiate wines and improve competitiveness. This could have positive effects on wine tourism, hospitality and winery visits in light of the recent recognition of the CVPP as the 55th Italian UNESCO World Heritage site.
Journey towards E-Learning in Pakistan: A Systematic Review
Authors: Nabia Luqman Siddiquei  , Ruhi Khalid
Published: September 2021

The 21st century has witnessed the advent of Information and communication technology (ICT) as an imperative medium of education to refurbish education by means of efficient, effective and latest way i.e. e-learning. The intention of introducing e-learning in modern world is to open innovation vistas of learning in education and replacing face to face traditional classrooms. Consequently, researches are becoming progressively more interested to observe the proliferation of e-learning across the country. This review intends to present information of the various findings regarding cumulative research work in the domain of e-learning so far. Reviews of nearly 70 articles published in electronic journals in Pakistan and are recognized by HEC during the time period of 2010-2019. The analysis of documented researches reveal that majority of the research literature related to e-learning during early 2010 to late 2014 were primarily focused on computer usage, implementation of Information and Communication Technologies (ICTs) and adoption of e-learning models using research designs such as descriptive, survey and mixed method research whereas the trend shifted towards distance education and e-learning after this time period. The literature review witnessed many researches during 2015 and 2016 after the growing interest of students towards this mode of education. However, the researchers have started giving immense importance to e-learning as the researches begin to publish in social sciences literature in Pakistan during 2017. As far as 2018-2019 is concerned, the relevance and reliance on e-learning have augmented as compared to past because e-learning has broadened its roots and scope whereas researchers show continued interest in this field.
The Attitude of Teachers towards Reflective Practice at College Level: A Mixed-Method Approach
Authors: Muhammad Zahid Hussain  , Khalid Khurshid
Published: September 2021

The purpose of this paper was to assess college teachers’ attitudes towards reflective practice and knowing their beliefs about promoting reflective practice to improve institutional and professional growth. The study was mixed-method in nature. The population was comprised of 203 college teachers and a sample of 132 teachers was randomly selected by using a sample selection table. An adapted Reflective Attitude Questionnaire (RAQ) constructed by Young (1989) consisting of 15 Likert items was used to assess the attitude of the college teachers. Semi structure interviews were also taken from the 10 college teachers to know their beliefs about how reflective practice could be promoted for teachers’ professional growth and institutional development. The RAQ had an alpha reliability of .90 which meant the instrument was reliable. Content validity was observed to verify the interview statements suggested by experts. Findings disclosed that teachers considered reflective practice useful for their teaching performance and professional growth. However, college principals did not facilitate reflection among teachers that impeded teachers' professional development as well as institutional growth.
Factors Influencing Intentions to use Digital Learning during COVID-19 Outbreak in Sindh: An Empirical Study
Authors: Abdul Rahim Chandio
Published: September 2021

This study aims to determine the intention of the students towards the use of digital learning during the COVID-19 outbreak as it impacts to cover the syllabus and face the learning management at risk. The rising dilemma of the COVID-19 urged the world communities to adopt the Digital system in the learning sphere to mitigate the psychological stress of the pandemic as Pakistan also moved to meet the criteria accordingly. The current research investigates the university students’ perception to apply the digital learning system in the way to regulate their online classes among the graduate to the Ph.D. level in Sindh. For the discovering the opinion of the digital learning users the behavioral determinants as perceived ease of use (PEOU), perceived usefulness (PU), social influence (SI), perceived quality (PQ), and intention to use e-learning (IEL) have been proposed and these constructs are used to envisage the students intentional level to use the wireless technology in their online classes in a Pakistan point of view. The data was collected through the students using an online survey of the Mehran University of Engineering & Technology Jamshoro, in which 249 respondents participated via their online feedback to fill the questionnaires. The theoretical approach pursues to encircle the technological acceptance model and unified theory of acceptance and use of technology to find out the users intention to use the digital learning and the data analysis was carried out through utilizing SPSS version 24 and the hypotheses were tested through the regressions and correlations. The given results highlight that all proposed factorsreveal the significant and positive relationship with dependent variable. The limitation of the prevailing study is concerned with the use of wireless technology in educational sector within a particular institution and findings could assist the students to adopt the online learning during the COVID-19 outbreak. The overall findings lead towards proposed framework and its practical implications.
A Study of Relationship between Emotional Intelligence and Teaching Attitude of B.Ed. Students
Authors: Mangla Neelam Raipuria
Published: September 2021

Emotional intelligence plays an active role in the formation of an individual's personality, interest, and attitude. This study has been conducted on 120 B.Ed. students to find out the relationship between emotional intelligence and teaching attitude. Mangal's Emotional Intelligence Scale and Teacher Attitude Inventory are used as tools. The product-moment correlation is used for analysis. A positive and significant correlation is found between teaching attitude and emotional intelligence. It indicates that the students who have better emotional intelligence, have a positive attitude towards teaching.
PENGARUH PENERAPAN STRATEGI PQ4R MENGGUNAKAN MEDIA FLIP BOOK TERHADAP HASIL BELAJAR IPS SISWA KELAS V SD DI ERA PANDEMI
Authors: Sumaryani Lilis , Rusijono Rusijono , Suhanadji Suhanadji
Published: September 2021

This research aims to apply the PQ4R strategy with social studies flip book media to 5th grade students of SDN Geluran 1 in online learning. This is done in order to improve student learning outcomes during online learning that is less interactive due to the Covid-19 pandemic. Data were obtained from class 5 SDN Geluran 1, Taman District, Sidoarjo Regency. This research method uses pretest-posttest control group design. The results of this study are as follows: (1) Learning activities with the application of PQ4R strategy through flip book media, there are two activities, namely teacher activities, the results of which are 86.25% can be categorized as very good and for student activities, 84% are obtained in the very good category. (2) Student responses to the implementation of the PQ4R strategy through flip book media on social studies learning outcomes in class V, there is a percentage of 73% which can be categorized as good. (3) The application of the PQ4R strategy through flip book media on social studies learning outcomes in grade 5 in a similar sample, namely the experimental group there is thitung > ttabel or 33,609 > 1,708. While the learning outcomes with different types of data, namely the experimental group and the control group obtained thitung of 2,262 and ttabel of 2,000, then thitung > ttabel. In other words, Ha is accepted and Ho is rejected. Thus, it can be concluded that the application of PQ4R using flip book media has a very good effect on learning outcomes for social studies subjects for grade 5 students at SDN Geluran 1, Taman Subdistrict, Sidoarjo Regency.

Keyword : Flip Book Media, PQ4R Strategy, Learning Outcomes, and Online Learning
ANALISIS KESULITAN GURU DALAM MENGEMBANGKAN INDIKATOR PEMBELAJARAN KURIUKULM 2013 SDN 210 BOTTOPENNO
Authors: Rasyd Ryaas , Amran Muhammad , Satriani Satriani
Published: September 2021

The research question in this study is how difficult the teacher is in developing the 2013 Curriculum Learning Indicators at SDN 210 Bottopenno. This research is a qualitative research with research subjects namely teachers of grades I, II, III, IV, V, and VI. Data collection using interview guidelines and documentation. Data analysis techniques are data reduction, data presentation stage, and drawing conclusions. The results obtained are that the teacher has difficulty in translating KD into indicators, determining the appropriate Operational Verbs (KKO), determining and adjusting competencies according to the characteristics of students, identifying the abilities of students, determining learning activities according to the indicators made, determining the type of assessment that is in accordance with the indicators applied, and the lack of training regarding the preparation of the 2013 Curriculum RPP that is in accordance with the conditions and characteristics of each region. The conclusion in this study is that the teacher of SDN 210 Bottopenno class in developing teacher learning indicators has difficulty in 1) describing basic basic competencies, 2) determining KKO, 3) determining competence, 4) identifying student characteristics, 5) determining learning activities, 6) determining the type of learning activity. assessment and 7) lack of 2013 Curriculum training in accordance with the conditions and characteristics.
Association between cardiovascular mortality and STOP-Bang questionnaire scores in a cohort of hospitalized patients: a prospective study
Authors: Valdivia1 Gabriel , Schmidt1 Alexia , Schmidt1 Bettina , Rivera1 Francisca , Oñate2 Aileen , Navarrete2 Camila , Campos1 Josue , Labarca1,3 Gonzalo
Published: September 2021

Objective: Obstructive sleep apnea (OSA) is associated with an increased risk of mortality and cardiometabolic diseases. The STOP-Bang questionnaire is a tool to screen populations at risk of OSA and prioritize complementary studies. Our objective was to evaluate the clinical utility of this questionnaire in identifying patients at an increased risk of mortality after discharge in a cohort of hospitalized patients. Methods: This was a prospective cohort study involving consecutive patients admitted to an internal medicine unit between May and June of 2017 who were reevaluated three years after discharge. At baseline, we collected data on comorbidities (hypertension, obesity, diabetes, and fasting lipid profile) and calculated STOP-Bang scores, defining the risk of OSA (0-2 score, no risk; = 3 score, risk of OSA; and = 5 score, risk of moderate-to-severe OSA), which determined the study groups. We also recorded data regarding all-cause and cardiovascular mortality at the end of the follow-up period. Results: The sample comprised 435 patients. Of those, 352 (80.9%) and 182 (41.8%) had STOP-Bang scores = 3 and = 5, respectively. When compared with the group with STOP-Bang scores of 0-2, the two groups showed higher prevalences of obesity, hypertension, diabetes, and dyslipidemia. Multivariate analysis showed an independent association between cardiovascular mortality and STOP-Bang score = 5 (adjusted hazard ratio = 3.12 [95% CI, 1.39-7.03]; p = 0.01). Additionally, previous coronary heart disease was also associated with cardiovascular mortality. Conclusions: In this cohort of hospitalized patients, STOP-Bang scores = 5 were able to identify patients at an increased risk of cardiovascular mortality three years after discharge.
Clinical characteristics and predictors of hospitalization among 7,108 ambulatory patients with positive RT-PCR for SARS-CoV-2 during the acute pandemic period
Authors: Simian1 Daniela , Martínez1 Maripaz , Dreyse2 Jorge , Chomali3 May , Retamal4 Marcelo , Labarca5,6 Gonzalo
Published: September 2021

Objective: To describe baseline characteristics of outpatients with a positive RT-PCR for SARS-CoV-2 and to define whether "red flags" (new-onset fever, dyspnea, and chest pain) can predict clinical worsening during the isolation period. Methods: This was an epidemiological, observational, descriptive study. Between March and September of 2020, all outpatients who tested positive for SARS-CoV-2 at a tertiary medical center located in Santiago de Chile were included. Demographic variables, comorbidities, red flags, and other symptoms were compiled using follow-up surveys at specific time points. The risk of clinical worsening (hospitalization) and adjusted hazard ratios (HRs) were calculated. Results: A total of 7,108 patients were included. The median age was 38 years (range, 0-101), and 52% were men. At baseline, 77% of the patients reported having characteristic symptoms of SARS-CoV-2 infection. The most prevalent onset symptoms were headache (53%), myalgia (47%), and fever (33%). According to the follow-up surveys, the incidence of symptoms decreased during the isolation period; however, 28% of the patients still presented with symptoms on day 14. The risk of hospitalization for patients with new-onset fever and dyspnea during the follow-up period was HR = 7.43 (95% CI, 3.85-14.3, p<0.01) and HR = 5.27 (95% CI, 1.52-18.30; p < 0.01 for both), respectively. New-onset chest pain showed no association with clinical worsening. Conclusions: In this sample of outpatients with a recent diagnosis of SARS-CoV-2 infection, a survey-based monitoring of symptoms was useful to identify those at risk of clinical worsening. New-onset fever and dyspnea during the isolation period were considered as red flags associated with clinical worsening and warrants prompt medical evaluation.
Challenges of State Institutions in Environmental Protection: A Case of Taraba State, Nigeria
Authors:   Department of Geography, Taraba State University, Jalingo, Nigeria., Oruonye E.D , Menwo Ukechi Wilson-Osigwe , Bashir Babanyaya Mohammed
Published: September 2021

This study examined the challenges of state institutions in environmental protection in Nigeria using the case of Taraba state. The institution theory was used as a theoretical framework for the study. The study adopted a descriptive design method using desktop review of secondary materials. Content analysis was used in analyzing the data. The findings of the study revealed that some of the challenges of the state environmental protection institutions include lack of political will, inadequate funding, inadequate qualified personnel, inadequate environmental protection infrastructures, poor condition of environmental protection laboratory, lack of office buildings for staff and poor capacity development. The study also revealed that since the creation of the Ministry of Environment in year 2000 in Taraba state, it is only in 2001, 2013 and 2014 that the ministry received up to 4% of the budgetary allocation of the state. The myriad of challenges have greatly constrained the capacity of the state institution to effectively achieve its mandate of environmental protection. Based on the findings, the study recommends the need for more political commitment to the issues of environmental protection through increased funding, employment of qualified personnel, establishment of environmental protection laboratories and increased capacity development. Environmental protection, institutional framework, Ministry of environment, State Institution and Taraba state.
Coercion and Coerciveness in the Politics of Cold-War Ukraine and Taiwan
Authors: Janicki Joel J.
Published: September 2021

The present study is devoted to an examination of the prison memoirs by the Ukrainian writer, Mykhaylo Osadchy (1936–1994) and the Taiwanese writer Tsai Tehpen (b. 1925) from the perspective of coercion. Osadchy was a member of the Sixtiers, a group of young Ukrainian intellectuals who brought about cultural renaissance in post-Stalin Ukraine. Their writings marked a strong reaction against Moscow’s policy of great-power chauvinism at the onset of the regime change that marked the end of Khrushchev’s liberalizing campaign. Osadchy was one of the victims of the subsequent wave of arrests of dissidents in the Soviet Union, including Ukraine, in 1965. His memoir, Cataract (1971) is a powerfully evocative response to trumped-up charges of subversion, anti-Soviet agitation and bourgeois nationalism, and a riveting description of life in a Mordovian labor camp, a work that posed a strong attack on official Soviet culture.
Western Travellers in the Caucasus. Georgia’s Highways and Byways: Hotels, Inns & Taverns in the 19th Century
Authors: Taylor-Terlecka Nina
Published: September 2021

Drawing on a wide range of French, English and Russian-language printed source material, the paper deals with the travel accounts of Western visitors to Georgia and the Caucasus in the nineteenth century. Focusing on the everyday practical experience of travel, it outlines the birth of the hotel trade in Tbilisi. After c. 1850, with the building of a railroad, “civilizational” standards began to improve, and over the years Tbilisi hotels were described as being as “good as any European establishment”.Under the heading of provincial travel, the paper addresses the issue of general supplies, provisions and self-catering, modes of transportation, the state of the roads, and the network of postal-stations, whose erratic services were supplemented by the omnipresent, albeit highly unreliable, wayside inn or dukhan. Coming to the Caucasus and Georgia on specific assignments (diplomatic, political, military, commercial, or scholarly) the authors of travelogues bring their prior expectations, nurtured by ancient myths, ancient literature, and a study of earlier travel accounts, with which they engage in textual dialogue. In their sundry reflections and musings they seldom fail to enthuse on the tourist potential of Georgia in particular, and the Caucasus more generally.
The Issues of “Europe” or “West” in the Discourse of the Artistic Ukrainian Movement
Authors: Radyshevskyi Rostyslav
Published: September 2021

The article raises the issue of European principles in both Ukrainian literature and culture. Particular attention is paid to criticism of the interwar period and Dmitry Dontsov, the editor of The Bulletin and the ideologist of volitional nationalism. It analyses in detail critical remarks and theses by Y. Kosach concerning the “separation” of Ukrainian literature from Europe and the “gap” between humanism and the Ukrainian literary tradition caused by D. Dontsov and The Bulletin.The influence of D. Dontsov’s Eurocentric ideas on Y. Kosach’s critical literary essay “On Guard of the Nation” is identified and interpreted. It is proved that D. Dontsov’s essential principles: nationalism, idealism, voluntarism, and heroism became the basis for Y. Kosach’s essay. Based on the matching nature of the fundamental concepts of D. Dontsov and Y. Kosach in the essay “On Guard of the Nation”, it was discovered that the views of both thinkers on the specific Ukrainian quality of being European, and on the problem of Europeanism were generally identical. In the essay “On Guard of the Nation”, Y. Kosach distinguished heroism, activist psychology, and chivalry as the primordial and leading motives of Ukrainian literary works. In the report “The Crisis of Contemporary Ukrainian Literature”, the words that used to be almost sacred for Y. Kosach of Dontsov’s era – “Gothic”, “literary imperialism”, “heroic, dynamic literature”, “true Occidentalism”, “traditional Europeanism” – sounded with a great deal of sarcasm and negation.
Современная драматургия
Authors: Maliutina Nataliia
Published: September 2021

The article discusses the book entitled Modern Dramaturgy: Genre Transformation, Modifications, Innovations by a well-known Ukrainian author, Evgueni Vassiliev. The reviewer considers the monograph to be an important contribution to the development of dramaturgy of contemporary literary studies; therefore, it is highly rated. Evgueni Vassiliev died in 2021, so the article also includes his biography, which shows a considerable number of research achievements of the author, a literary critic, a researcher of contemporary drama and theatre, a director of the youth theatre in Rivne, and an initiator of numerous conferences (Kondratievski’s Readings).
The use of Usability Tests in Website-Based Student Report Value Processing Information Systems
Authors: Solehudin Arip , Heryana Nono , Retnosary Rieke
Published: September 2021

Abstract - The information system for processing studentreport cards based on the website is a system that providesinformation on student activity reports online in the form of grade reports and related student information based on theweb, thus helping speed and quality in delivering information.Problems that occur in processing report cards at SMPN 2 Telagasari are currently still using report cards and inputtingstudent scores is still manual. This study aims to build a valueinformation system that makes it easier to check, record, and report computerized student grade data. In addition, by being web-based, data information can be accessed at any time. This website uses XAMPP as a web server for system design and MySQL as a database. The design of the login menu consisting of admins, teachers, and students has separate access when opening the application so that the security of the program is maintained. Testing this website using black-box testing and Likert scale usability testing to make it easier forauthors to assess whether this online report card processing information system website can facilitate users.
ASSURING OF RUSSIAN BUDGET SYSTEM`S ECONOMIC SECUTITY
Authors:   Candidate of Economic Sciences, Professor of the Department of Economic Analysis and Financial Monitoring in the Institute of Integrated Safety and Security and Specific Instrumentation in MIREA – Russian Technology University, Moscow, Russia, KUZOVLEVA N. F. , BOYCHENKO V. M. ,   Institute of Integrated Safety and Security and Specific Instrumentation in MIREA – Russian Technology University, Moscow, Russia
Published: September 2021

The article deals with the problems of ensuring the economic security of the budget system, identifies the essence and main functions of ensuring the economic security of the budget system, as well as presents main techniks aimed at effective functioning and prevention of criminalization of budget relations.
ECONOMY AND MANAGEMENT OF THE NATIONAL ECONOMY CHALLENGES OF NATIONAL FOOD SECURITY IN MODERN CONDITIONS
Authors:   Vyatka State University, Kirov, Russia, STEPANYAN V. Kh.
Published: September 2021

Within the framework of this article, using the example of poultry meat production, the dependence of some sectors of the domestic economy on the use of imported components is considered. The purpose of the research was to analyze the risks of failure to achieve the indicators of the Food Security Doctrine of the Russian Federation with significant restrictions on the import of critical components for the industry, as well as the impact of the exchange rate of the national currency on the cost of final products and their availability to consumers.
ASSESSMENT OF INNOVATION ACTIVITY IN THE OIL AND GAS SECTOR OF THE RUSSIAN FEDERATION
Authors:   Ph. D., associate Professor of branch and project management of the Kuban State Technological University, Krasnodar, Russia, ANTOSHKINA A. V. , BASYUK A. S. ,   Ph. D., associate Professor of branch and project management of the Kuban State Technological University, Krasnodar, Russia
Published: September 2021

The article considers the conditions affecting the sustainability of the development of the oil and gas industry in the Russian Federation, describes the innovative activity of oil and gas enterprises, analyzes what innovative potential the oil and gas sector of the Russian economy has and what factors determine the inno-vative activity of enterprises in the industry, as well as their patent activity and the efficiency of energy use.
RESEARCH OF RISKS OF ECONOMIC SECURITY OF COMPANIES IN THE PROCESS OF DIGITAL TRANSFORMATION
Authors:   candidate of economic sciences, associate professor, Director of the Institute of Economics and Management, Vyatka State University, Kirov, Russia, SAVELYEVA N. K. , MAKAROVA M. V. ,   lecturer of the Department of Economics, Vyatka State University, Kirov, Russia
Published: September 2021

The article attempts to classify the risks of economic security of electric grid companies in the process of digital transformation. It is revealed that the existing classification does not take into account the specifics of the electric power industry and the conceptual changes that arise in the process of digitalization.
GAMES IN BUSINESS EDUCATION
Authors:   Doctor of Economics, professor of the Department of Management, IBS RANEPA, Moscow, Russia, SAVELYEVA M. V. , GRUKHVINA O. I. ,   Lecturer at the Department of Management, IBS RANEPA, Moscow, Russia, KALYUZHNAYA K. A. ,   Bachelor of Human Resource Management, IBS RANEPA, Moscow, Russia
Published: September 2021

The article shows the role of games (gamification) in increasing the effectiveness of teaching students and listeners, as well as increasing their involvement in this process. The essence of the game, its types and effects obtained as a result of its use in the educational process are revealed. The authors identified the stages of creating this learning tool and the key skills and abilities necessary for training games. The study conducted by the authors on the basis of conducting games among students during training is described, the results are given.
Difference in S-Curve for Different Types of Construction Projects
Authors:   Kuwait University, Civil Engineering Department, Safat 17269, Kuwait, Soliman Ehab , Alrasheed Khaled ,   Kuwait University, Civil Engineering Department, Safat 17269, Kuwait
Published: September 2021

Project cash flow and contractor S-curve are tools that can be used to measure, control and anticipate project progress. Few studies dedicated to evaluate and judge the behaviour of the original S-curve. This study aims to evaluate the similarities and changes of construction projects S curves between different project types. More than 40 S-curves were collected from the state of Kuwait for different types of construction projects. The list of collected curves divided into six groups based on the type of client, no of buildings and number of floors. Statistical analysis used to compare the curves inside each group of projects. Statistical analysis using test of normality, T-paired test then Standard Euclidean Distance were applied to evaluate the similarity and changes between groups. This study revealed that there is a level of similarity of S-curves for high rise buildings and there is no similarity of S-curves for one or multi-building projects. The maximum gap between S-curves for one and high rise building laying in the middle part of project duration, while the maximum gap between S-curves for multi-building project laying in 70% to 80% of project duration. This study revealed that the variance of S-curve behaviour indicating there is no common attitude for all types of construction project types. This study can help construction stakeholders to anticipate their expected expenses and help in project cash flow management.
Bayesian Localization in Real-Time using Probabilistic Maps and Unscented-Kalman-Filters
Authors:   College of Eng. & Tech., American University of the Middle East, Kuwait., Farag Wael
Published: September 2021

In this paper, based on the fusion of Lidar and Radar measurement data, high-definition probabilistic maps, and a tailored particle filter, a Real-Time Monte Carlo Localization (RT_MCL) method for autonomous cars is proposed. The lidar and radar devices are installed on the ego car, and a customized Unscented Kalman Filter (UKF) is used for their data fusion. Lidars are accurate in determining objects' positions and have a much higher spatial resolution. On the other hand, Radars are more accurate in measuring objects velocities and perform well in extreme weather conditions. Therefore, the merits of both sensors are combined using the UKF to provide pole-like static-objects pose estimations that are well suited to serve as landmarks for vehicle localization in urban environments. These pose estimations are then clustered using the Grid-Based Density-Based Spatial Clustering of Applications with Noise (GB-DBSCAN) algorithm to represent each pole landmarks in the form of a source-point model to reduce computational cost and memory requirements. A reference map that includes pole landmarks is generated off-line and extracted from a 3-D lidar to be used by a carefully designed Particle Filter (PF) for accurate ego-car localization. The particle filter is initialized by the combined GPS+IMU reading and used an ego-car motion model to predict the states of the particles. The data association between the estimated landmarks by the UKF and that in the reference map is performed using Iterative Closest Point (ICP) algorithm. The proposed pipeline is implemented using the high-performance language C++ and utilizes highly optimized math and optimization libraries for best real-time performance. Extensive simulation studies have been carried out to evaluate the performance of the RT_MCL in both longitudinal and lateral localization.
Solar Assisted Power Generation System in Hot Desert Climate: A Cost-Benefit Perspective
Authors:   Department of Industrial Engineering, Taibah University, Madinah Munawara PO Box 344, Saudi Arabia, Alahmadi Ramzi , Almutairi Kamel ,   Department of Chemical Engineering, Taibah University, Madinah Munawara PO Box 344, Saudi Arabia
Published: September 2021

With the increasing global concerns about greenhouse gas emissions caused by the extensive use of fossil fuels, many countries are investing in the deployment of clean energy sources. The utilization of abundant solar energy is one of the fastest growing deployed renewable sources due its technological maturity and economic competitivity. In addition to report from the National Renewable Energy Laboratory (NREL), many studies have suggested that the maturity of solar energy systems will continue to develop, which will increase their economic viability. The focus of analysis in this paper is countries with hot desert climates since they are the best candidates for solar energy systems. The capital of Saudi Arabia, Riyadh is used as the case study due to the country’s ambitious goals in this field. The main purpose of this study is to comprehensively analyze the stochastic behavior and probabilistic distribution of solar irradiance in order to accurately estimate the expected power output of solar systems. A solar Photovoltaic (PV) module is used for the analysis due to its practicality and widespread use in utility-scale projects. In addition to the use of a break-even analysis to estimate the economic viability of solar PV systems in hot desert climates, this paper estimates the indifference point at which the economic feasibility of solar PV systems is justified, compared with the fossil-based systems. The numerical results show that the break-even point of installing one KW generation capacity of a solar PV system is estimated to pay off after producing 16,827 KWh, compared to 15,422 KWh for the case of fossil-based systems. However, the increased cost of initial investment in solar PV systems deployment starts to be economically justified after producing 41,437 KWh.
Non-Isothermal Models to Determine the Rheological Constants of Different Kuwaiti Crude Oils
Authors:   Department of Chemical Engineering, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait, Albusairi Bader , Al-Mulla Adam ,   Department of Chemical Engineering, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
Published: September 2021

The rheological characteristics of four Kuwaiti crude oils samples collected from four different collection points; namely, MG 23T, MG 29T, MG 34T and MG 108T were investigated. The investigation were conducted in the temperature range 298–313 K using the Bingham, Ostwald–de Waele, Herschel–Bulkley, Casson, and modified Casson models. The experimental data of the shear stress were modeled as a function of the shear rate and temperature. Statistical estimations were used to determine the most accurate model and non-isothermal empirical relations. The Ostwald–de Waele and Herschel–Bulkley models yielded the most accurate predictions for MG 23T, MG 29T and MG 108T, and MG 34T, respectively. It is noted that all the crude oils follow shear thinning behavior. Arrhenius-Eyring equation has been used to estimate the activation energy and the pre-exponential factor of these crude oils at a shear rate of 10.3 s-1.
Predicting the flow zone indicator of carbonate reservoirs using NMR echo transforms, and routine open-hole log measurements: Insights from a field case study spanning extreme micro-structure properties
Authors:   Petroleum Engineering Department, Kuwait University, Al-Dousari Mabkhout , Almudhhi Salah ,   Petroleum Engineering Department, Kuwait University, Garrouch Ali A. ,   Petroleum Engineering Department, Kuwait University
Published: September 2021

Predicting the flow zone indicator is essential for identifying the hydraulic flow units of hydrocarbon reservoirs. Delineation of hydraulic flow units is crucial for mapping petrophysical and rock mechanical properties. Precise prediction of the flow zone indicator (FZI) of carbonate rocks using well log measurements in un-cored intervals is still a daunting challenge for petrophysicists. This study presents a data mining methodology for predicting the rock FZI using NMR echo transforms, and conventional open-hole log measurements. The methodology is applied on a carbonate reservoir with extreme microstructure properties, from an oil “M” field characterized by a relatively high-permeability with a median of approximately 167 mD, and a maximum of 3480 mD. The reservoir from the M field features detritic, or vuggy structure, covering a wide range of rock fabrics varying from microcrystalline mudstones to coarse-grained grainstones. Porosity has a median of approximately 22%. Dimensional analysis and regression analysis are applied for the derivation of four transforms that appear to capture approximately 80% of the FZI variance. These four transforms are formulated using the geometric mean of the transverse NMR relaxation time (T2lm), the ratio of the free fluid index (FFI) to the bulk volume irreducible (BVI), the bulk density, the sonic compressional travel time, the true resistivity, the photo-electric absorption, and the effective porosity. Non-linear regression models have been developed for predicting the FZI using the derived transforms, for the carbonate reservoir from the M field. The average relative error for the estimated FZI values is approximately 52%. The same transforms are used as input for training a developed general regression neural network (GRNN), built for the purpose of predicting rock FZI. The constructed GRNN predicts FZI with a notable precision. The average absolute relative error on FZI for the training set is approximately 3.1%. The average absolute relative error on FZI for the blind testing set is approximately 22.0 %. The data mining approach presented in this study appears to suggest that (i) the relationship between the flow zone indicator and open-hole log attributes is highly non-linear, (ii) the FZI is highly affected by parameters that reflect rock texture, rock micro-structure geometry, and diagenetic alterations, and (iii) the derived transforms provide a means for further enhancement of the flow zone indicator prediction in carbonate reservoirs.
Study of non-Newtonian polymer blends using large amplitude oscillatory shearing flow
Authors:   Department of Chemical Engineering, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait, Daffallah Isameldeen E. , Almusallam Abdulwahab S. ,   Department of Chemical Engineering, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
Published: September 2021

Large amplitude oscillatory shear (LAOS) was performed on non-Newtonian minor phase in Newtonian matrix phase polymer blends as a first step toward understating more complex immiscible polymer blends under high deformation condition. The blend consists polybutadiene (PBD) as the droplet phase and polydimethylsiloxane (PDMS) as the matrix phase. The PBD droplet phase was an elastic “Boger” fluid prepared by dissolving a high-molecular-weight PBD into a low-molecular-weight Newtonian PBD. Different percentages of the high-molecular-weight PBD were used to prepare different types of Boger fluids that resulted in blends with different viscosity ratios from lower than unity, to unity and higher than unity. Furthermore, the LAOS results of the blends were analyzed by using the Fourier Transform (FT) technique. From a theoretical point of view, the constrained volume model (CV-model) for Newtonian components is adapted to the case of a Newtonian matrix phase and non-Newtonian Boger fluid droplet phase by taking into account stresses that arise in the Boger fluids. The adapted model and the Newtonian CV-model were compared to the experimental results of FT-LAOS for checking the predictability of the model against the rheological properties. The adapted model shows some reasonable qualitative and quantitative agreements at high strain amplitude values.
Formulation, Development and Evaluation of Nasal In situ Gel of Pregabalin
Authors: Prajapati Anuradha P , Kanzaria Jalpa H , Luhar Shailesh V , Narkhede Sachin B
Published: September 2021

The objective of the present work is to formulate, develop and evaluate nasal in situ gel of Pregabalin to provide better therapy for Epilepsy. Pregabalin is BCS class I drug. It is 3rd generation anticonvulsant used in epilepsy in which faster action is required. Nasal route has faster action than oral route, also convenient to unconscious patient. Pregabalin loaded in situ gel, for the treatment of epilepsy to avoid side effects and first pass metabolism associated with conventional treatment and increase bioavailability. Pregabalin was loaded into different polymeric solutions of Polycarbophil and HPMC K4M. The drug was characterized for various parameters like UV-Spectroscopy, FTIR Spectroscopy and DSC study. Excipients were screened for selection of mucoadhesive and gelling polymer. Then the drug was formulated as in situ gel. The experiment was subjected to 32 full factorial design, the concentration of Polycarbophil (X1) and HPMC K4M (X2) were selected as independent variables with % drug release and muco-adhesive strength as dependent variables. The kinetic study was carried out for 30 days. Polycarbophil was selected as mucoadhesive and gelling polymer. The values for X1 and X2 were 0.3922% and 0.5263% relating the % drug release and mucoadhesive strength values were 78.20% CDR at 240 min. and 960 dynes/cm2 respectively for checkpoint batch following zero order and Higuchi kinetic. The formulation was found to be stable for 30 days. The present research will be helpful in order to improve the efficacy and tolerability of the antiepileptic drug therapy. So alternative administration strategy has been investigated which deliver nasally administered medication directly to brain effectively. The intranasal in situ gelling system is a promising novel drug delivery system for an antiepileptic drug Pregabalin which could enhance nasal residence time with increased viscosity and mucoadhesive character and provided better release profile of drug for treating epileptic conditions.