bluuebunny/crossref_metadata_2025 huggingface dataset:
Information Systems Usage in Universities of Madhya Pradesh: An Empirical Investigation
Authors:   IT, VESIM Business School, Mumbai, India, Muley Pranjal , Joshi Nirmala
Published: October 2020

The study attempted to determine the “Acceptance” of computer based Information Systems or Management Information Systems in the university staff members of cities of Madhya Pradesh. This was obtained on four indicators namely; 1) information systems/ Management information systems use by university staff members is the “Mandate”; 2) Dependency on information systems of university staff members; 3) Ease in work of university staff members by using Management Information system 4) Work preference by using MIS systems over manual way amongst university staff members. The study was descriptive with stratified sampling. Data collected from two state universities and two private universities. Results indicated that university staff members were using information systems because of universities’ mandate. They experienced ease in their daily work and thus developed dependency on these systems for obtaining all required data and information regarding their work. Results from Chi-Square tests indicated that there was significant difference found in opinion between state university staff members and private university staff members.
The Moderating Effects of Experience and Training on Students’ Use of a Learning Management System
Authors:   Albaha University, Albaha, Saudi Arabia, Alshehri Ahmed , Rutter Malcolm , Smith Sally
Published: October 2020

E-learning systems have become progressively more vital for universities, schools and other organisations to provide informational content and instructive resources. Incorporation of technology in learning and teaching environment is no longer an option, but a necessity. Still, the challenge for educational institutions is how to attract learners to their e-learning services. The study utilised an extended Unified Theory of Acceptance and Use of Technology (UTAUT) model to investigate empirically the variables that influenced the students use of a Learning Management System (LMS) in Saudi tertiary education. The focus of this study is the impact of demographic characteristics of experience and training on the students’ use of the LMS. Based on survey data from 605 respondents, Partial Least Squares Structural Equation Modelling (PLS-SEM) in conjunction with multigroup analysis techniques were employed to assess the model. The results showed that experience moderated the relationship between behavioural intention and actual use, information quality and behavioural intention as well as social influence and actual use. Whereas only the association of information quality on performance expectancy was moderated by the training variable. These findings may contribute to a deeper understanding of e-learning students’ adoption behaviour. In light of these findings, the recommendations along with the study’s’ limitations were communicated.
Construction and Optimization of Educational Technology Course Knowledge Network
Authors:   School of Information Science and Technology, Yunnan Normal University, Kunming, Yunnan, China, Liu Jingxia , Wen Bin
Published: October 2020

Teachers should not only understand the basic knowledge of the course, but also master the overall structural characteristics of the course, grasp the important and difficult point of the course, and optimize the knowledge structure of the course. This paper mainly applies complex network to the analysis of course knowledge structure to construct and optimize the knowledge network of Educational Technology course. Firstly, the textbook and syllabus of Educational Technology course are used as a data source, and the course knowledge network model is constructed. Secondly, the knowledge nodes and their relationships are determined, and the course knowledge network is constructed. Thirdly, by using topological sorting based on directed graph, the course knowledge structure is optimized. And the pre-optimized and optimized course knowledge network are compared and analyzed, it shows the optimized course knowledge structure has superiority. It proves that the optimized course knowledge structure is more hierarchical, sequential and structural, which can highlight the main line of knowledge and clear the learning ideas. Finally, according to the results of comparative analysis of the pre-optimized and optimized course knowledge network, the teaching suggestions are proposed, and it is to realize the aim of optimizing teaching.
A Systematic Literature Review on Teaching and Learning English Using Mobile Technology
Authors:   School of Computing, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Johor Bahru, Johor, Malaysia, Shahrol Siti Julia Mohd , Sulaiman Shahida , Samingan Mohd Razak , Mohamed Hasnah
Published: October 2020

Mobile technology has become increasingly popular in the past decade and provides a chance to move forward towards 21st century education. The art of teaching and learning English with the adoption of mobile technology creates a different learning environment for both teachers and students. Hence, reviewing existing works systematically is crucial in finding the gaps in teaching and learning English using mobile technology. A Systematic Literature Review (SLR) is conducted to identify important factors influenced in the teaching and learning English using mobile technology and existing studies in overcoming the issues. The results show that providing suitable educational technology is one of the key success factors to enhance teaching and learning English. This paper reports the key gap and limitation in current studies that focus on teaching and learning English using mobile technology.
Effect of nurse-led training on the pharmacological knowledge and management of dysmenorrhea among female undergraduates of Lagos State University ojo Lagos, Nigeria
Authors: Babarimisa Oluwatoyin Modupeore
Published: October 2020

Background: Dysmenorrhoea is very common among female adolescents and the associated pain could be severe and significantly impact their daily and academic lives. Dysmenorrhea can be effectively managed if properly understood and given proper management, hence, this study determined the outcome of educational intervention on pharmacological knowledge and management of dysmenorrhea among undergraduates in Lagos State University.Methods: The study utilized a one-group pre-post-test quasi experimental design. Total enumeration of 126 respondents female accounting students were selected. Two instruments of Self-Report Questionnaire (SQR) and Test Paper on Knowledge and Management of dysmenorrhea (TRKM) were used to collect data. Descriptive statistics of frequencies, percentages, mean scores and standard deviation were used to analyze the research questions.Results: Findings showed that majority of the participants 91 (72.2%) were between the ages of 20-24 years, 97 (77.0%) started menstruation between 10-15 years of age, and 76 (59.9%) only menstruated for 3 days. The pre and post intervention mean scores on knowledge of pharmacological management of dysmenorrhea were (2.981±1.176) and (8.115±0.997) with a mean gain of 6.670. Also, there is significant difference between pre and post intervention of knowledge on dysmenorrhea with knowledge gained 16.130, t=47.806 at p=0.00).Conclusions: The organized education programs on knowledge and management of dysmenorrhea benefited the participants, therefore, resulting in an increase in knowledge and management of dysmenorrhea. It was recommended that Community health practitioners, public health educators and social workers should plan appropriate technique to modify the attitude and beliefs of females on management of dysmenorrhea.
Outcome of nurses’ training on treatment of selected diseases, utilising integrated management of childhood illness module inagege local governemnt, Lagos State
Authors: Omolayo Fadipe Ololade
Published: October 2020

Background: In developing countries, parents seek health care for their sick children daily at available health centers, pharmacies, hospitals and traditional healing centers, but the care received are not always adequate, this invariably result in use of obsolete ideas and regimens in the care of sick children. However, it was observed that some nurses do not treat sick children according to IMCI module hence the objective of the study is to explore the outcome of nurses training in the treatment of selected childhood diseases utilizing IMCI.Methods: The study utilized one group pre-posttest quasi experimental research design. Total enumeration was used to enroll 150 participants. Two research instruments were used to collect data with reliability index of 0.803 and 0.617. Inferential statistics was used to test the hypotheses at 0.05 level of significance. Data were collected over six weeks in three phases.Results: Results revealed significant differences between pre and post intervention mean scores of nurses knowledge in the treatment of malaria (t=22.626, p=0.00); pneumonia (t=19.760, p=0.00); and diarrhoea (t=19.608, p=0.00).Conclusions: The training package used in this study enhanced the knowledge in the treatment of selected childhood illness. It is therefore recommended that there is need to train all nurses working at the primary health centers on the use of integrated management of childhood illness module which will contribute to the reduction of infant morbidity and mortality rate in Ages local government area of Lagos State.
Injuries to the great vessels: an autopsy-based study
Authors: George Thankamma P. , Sreedevi C. S. , K. Sreekumari
Published: October 2020

Background: Injuries of the chest causing disruption of the thoracic cage, damaging the great vessels are increasing daily. Aorta is most vulnerable to injury in deceleration trauma from road and air accidents, fall from height and penetrating injuries. Incidence of traumatic rupture of the aorta is rising with higher travel speed.  Methods: In this study we analysed the pattern of injury to great vessels and the socio-demographic pattern of the victims in trauma. 250 cases brought to a tertiary care institution for autopsy were studied from 1st January 2005 to 30th November 2005 (1st July 2005 - 30th November prospectively, and 1st January - 30th June 2005, retrospectively). A cross sectional study design including all cases of trauma to the chest was done with consecutive sampling. Data was collected in pro forma and analysed.Results: 206 victims were males. Commonest cause of chest injury was trauma. 130 (52%) were victims of road traffic accidents and the vehicle implicated the most was bus (41 cases, 16.4%). Pedestrians constituted the majority (26.4%). 15 cases (6%) involved major blood vessels of the thorax. Descending part of the thoracic aorta was vulnerable, with transection of the great vessels in 5 cases (2%). Haemothorax was observed in 102 cases on right side and 94 cases on the left side. 9 cases (4%) of bronchial or tracheal ruptures with 6 cases of severance and 3 incidences of tear were recorded.Conclusions: The wound of aorta or pulmonary artery are immediately fatal and commonly seen in case of vehicular accident or fall from height due to the intense compression to the chest with or without any sign of external injury. Most ruptures are due to automobile accidents and the mechanism of injury is sudden motion of the heart and great vessels.
Relation between monocyte/high density lipoprotein ratio in acute ischemic stroke severity
Authors: V. Meghashri , A. Raveesha , R. Vishwanath , K. Prabhakar
Published: October 2020

Introduction: Stroke is a common neurological condition, with a high incidence of mortality and morbidity, especially in the elderly population. Inflammation and lipid abnormalities have been proposed for the pathophysiology development and progression of atherosclerosis. Monocyte count to High density lipoprotein (HDL) ratio (MHR) is proposed as a novel predictor of prognosis in cardiovascular diseases. In this study, we aim to investigate the relationship of MHR with stroke severity in acute ischemic stroke patients.Methods: A total of 64 patients with acute ischemic stroke were inpatients of RLJH were included in the study. Patients were divided into 2 groups according to the National institute of health stroke (NIHS) score (group 1; national institute of health stroke scale (NIHSS) <16, group 2; NIHSS ≥16). MHR is the ratio obtained by dividing the monocyte count with HDL from a peripheral blood sample. Then the association between MHR and NIHSS score at the time of admission is evaluated.Results: Accordingly, the results obtained revealed MHR was significantly lower in group 1 patients who have lower NIHSS score than group 2 patients who have higher NIHSS.Conclusion: This study suggests that MHR is associated with stroke severity on admission in patients with acute ischemic stroke.
Comparative study on the efficacy of intra-articular steroid injection through glenohumeral versus subacromial approach in the treatment of adhesive capsulitis
Authors: Ghorai Debayan , Mondal Suamantro , Basak Amalesh , Kamal Firdaus
Published: October 2020

Background: Objective of the study was to compare the efficacy between gleno-humeral and sub-acromial approach of intra-articular steroid injection in the management of adhesive capsulitis.Methods: This study was a randomized parallel group, open label, interventional study conducted during the period of May 2018 to October 2019. Patients with stage1 or stage2 adhesive capsulitis of shoulder (n=56) were selected and after computer generated randomization they were allocated into two groups (gleno-humeral and sub-acromial) consisting of 28 patients in each group. Gleno-humeral and sub-acromial group received intra-articular injection of 40 mg (1ml) depot methylprednisolone acetate with 2 ml of 2% lignocaine through gleno-humeral and sub-acromial approach respectively along with physical therapy. Primary outcome measure was improvement of range of motion of intervened shoulder joint from the baseline to 3rd and 6th weeks post injection. Secondary outcome measures were VAS, physician and patient’s global assessment of pain and functional status.Results: At baseline and 3rd post-injection none of the outcome parameters showed statistically significant difference between those two groups. At 6th post-injection sub-acromial group showed statistically significant improvement in active flexion (p value=0.040), passive flexion (p value=0.024), passive abduction (p value=0.044) and physician’s global assessment score (p value=0.017).Conclusions: Sub-acromial approach of injection is better than gleno-humeral approach in terms of improvement in flexion, passive abduction and physician’s global assessment score at 6th post-injection in patients with stage1 or stage2 adhesive capsulitis.
Clinical profile of patients of pyrexia with hepatic dysfunction in a tertiary care hospital in Southern Rajasthan region of India
Authors: Mistry Abhishek , Singhal Yogesh Kumar , Gupta Pankaj , Kumawat D. C.
Published: October 2020

Background: Pyrexia in association with hepatic dysfunction is commonly found in clinical practice with varied etiologies like malaria, dengue, typhoid, scrub typhus, viral hepatitis, etc. The liver is frequently involved in systemic infections, resulting in various types of abnormal liver function tests. It is very important to know the frequency and pattern of abnormal liver function tests in each infection for its appropriate management.Methods:  A complete data of all the patients admitted in medicine wards and medicine ICU from January to December 2018 were studied. One hundred and ten patients with fever with abnormal liver function tests were interviewed and presenting complaints were noted. Demographic data such as age and sex were noted. These patients underwent a thorough general physical examination and systemic examination. The findings were noted on a predesigned and pretested proforma. The selected patient underwent blood investigations related to liver functions.Results: Most of the patients were of age group of 21 to 50 years (65 patients), 67 patients (60.91%) were males and 43 (39.09%) were females. Malaria (25.45%) and dengue (26.36%) were major etiologies. Hepatomegaly (46.36%), icterus in (45.45%) and splenomegaly (42.73%) were most common clinical signs.Conclusions: Present study will help clinicians to identify etiological factors and clinical picture in patients of pyrexia with hepatic dysfunction.
Multiple system atrophy in a man misdiagnosed with parkinsonism
Authors: Menakuru Sasmith R. , Ali Mir Inzamam , Ali Mir Inzamam , Kalla Sruti , Kalla Sruti , Datti Abhinav , Datti Abhinav
Published: October 2020

Multiple system atrophy (MSA) is a rare sporadic, progressive, neurodegenerative disorder with autonomic deficits, with a yearly incidence of 0.000006%. MSA is often misdiagnosed as idiopathic Parkinson’s Disease (PD). It may present with a combination of parkinsonian, autonomic, and cerebellar signs. From a prognostic point of view, accurate diagnosis is essential. Our patient was misdiagnosed as having PD, but after thorough workup was diagnosed as having MSA type Parkinson’s. Because of this, the patient was put on supportive treatment for MSA. The authors strive to differentiate between the types of multiple system atrophy and its diagnostic criteria as well as differences between MSA and Parkinson’s.
Hypereosinophilia presented as thromboembolic event: a rare manifestation
Authors: Atri Sudhir K. , . Homdutt , Goel Manjri , Yadav Devender
Published: October 2020

Eosinophilia refers to peripheral blood absolute eosinophil count above the ULN, normal range of AEC is 0.05-0.5× 109/l (1-6%). Hyper eosinophilia refers to AEC above 1.5×109/l. Hypereosinophilia can affect multiple organs and can cause cardiomyopathy, gastroenteritis, cutaneous lesions, pneumonitis, and neuritis. In addition, some patients develop thromboembolic complications. We are presenting a case who presented to us with thromboembolic complication later diagnosed as hypereosinophilia with Bone marrow showing myeloid associated eosinophilia (Primary eosinophilia).
Compare and correlation of dermatoglyphic patterns (fingerprint and palm patterns) among normal individuals and patients with type-2 Diabetes Mellitus attending the medicine OPD in a tertiary care Hospital
Authors: Srijith  , Sreenivasan Gayana , C S Santhosh , C Shubha
Published: October 2020

Diabetes is a global disease and is rising in occurrence though the rate of increase is higher in developing countries than that in the developed countries. Dermatoglyphics is a branch of science involved in the study of epidermal ridges on the surface of fingertips, palms, soles and toes A case control study was conducted at Bapuji Hospital, Davngere to compare dermatoglyphic patterns in patients with Type 2 Diabetes Mellitus and normal subjects and also to check if an association between type 2 Diabetes Mellitus and dermatoglyphics exists. The study concluded that there were no association between dermatoglyphics (pattern of fingerprints and triradii angles) and diabetes mellitus when the population was considered as a whole(males and females together) but there were significant differences when the sexes were considered separately.
Modeling and Simulation of a Metal Oxide Lightning Surge Arrester for 132kV Overhead Transmission Lines
Authors: Khan Aziz Ullah
Published: October 2020

This paper demonstrated the design of a Metal Oxide Surge Arrester for a 132 kV system with a rated voltage of 120 kV according to specifications. The study model was chosen to be Pinceti model which is a derivation of the IEEE standard model of Lightning arrester design. The design specifications for the lab tests on 120kV rated arrester for ZnO material were obtained from the catalogue of Ohio Brass Pvt. Ltd. The parameters for the lumped components were derived from the manufacturer’s data sheet while the non-linear characteristic was derived from curve fitting based on the Pinceti provided curves in literature, using Matlab Curve Fitting Tool. The design was simulated on EMTP-RV commercial software and the results before optimization as well as after optimization are presented. A cross comparison with the manufacturers data results in 1.113% relative error, which is in competition with similar designs for different rated and system voltages in literature. The study presents an improved model of a metal oxide arrester for 132kV system, with its lumped and exponential parameters presented in detail.
Analytical and Numerical Solution of Viscous Fluid Flow with the Effects of Thermal Radiation and Chemical Reaction Past a Vertical Porous Surface
Authors: Gharami Partha Protim , Arifuzzaman Shikdar M. , Reza-E-Rabbi Sheikh , Shakhaoath Khan Mohammad , Ahmmed Sarder Firoz
Published: October 2020

Magnetohydrodynamic (MHD) unsteady flow of incompressible, electrically conducting, and viscous fluid passing through a vertical porous plate is explored in this investigation where the impact of thermal radiation and chemical reaction are presented. A nonlinear two-dimensional unsteady flow model is created to decompose heat and mass transfer of this fluid, which is shaped by taking appropriate boundary conditions. The governing equations are solved analytically with satisfactory boundary conditions by using a two-term perturbation technique. The analytical outcomes are illustrated graphically by using MATHEMATICA 7.0. The fundamental equations are also solved numerically by utilizing explicit finite difference methodology (EFDM) with the help of Compaq Visual Fortran 6.6a. The numerical arrangement is also depicted graphically to examine the outcomes. The acquired pertinent parameters are analysed conveniently, including thermal Grashof number, thermal radiation parameter, and chemical reaction parameter, the permeability of the porous medium, magnetic parameter, Prandtl number, modified Grashof number, and Schmidt number. It is observed from our experiment that the velocity and concentric profiles decline when the reaction rate between the molecules is high. Furthermore, a suitable validation has been done with the previously published articles, and a favorable agreement is observed.
EARLY EVIDENCE ON THE XBRL ADOPTION PROCESS IN MALAYSIA: DRIVERS AND CHALLENGES ON THE TECHNOLOGICAL PERSPECTIVE
Authors: Ilias Azleen , K Ghani Erlane , Azhar Zubir
Published: October 2020

Purpose: This study aims to identify technological factors and how these factors influence the XBRL adoption process of the regulators in Malaysia.

Methodology: This paper applied Rogers’s (1983) adoption process and DiPietro, Wiarda, and Fleischer’s (1990) Technological, Organisational, and Environmental (TOE) framework. The paper adopted a case study approach consisting of an interview and document analysis. The data has been analysed with thematic analysis.

Results: This paper shows ten (10) factors within the technological perspective—the relative advantage as driving factor while trialability are the challenging factor in the knowledge and persuasion phase. In the decision-making phase, compatibility of XBRL taxonomy and stability production of XBRL instance documents are the driving factors whilst stability of XBRL taxonomy, standardised XBRL taxonomy, standardised XBRL submission, availability of tools and software and observability are challenges in the XBRL adoption process. In the implementation and confirmation phase, the complexity of the XBRL taxonomy is considered a challenge in the XBRL adoption process.

Implications: The findings in this paper serve as strategies to the other regulators that have plans to adopt XBRL as well as to attract the different government agencies to start with XBRL for reporting.
ASEAN-CHINA ECONOMIC DISPUTE IN THE AFTERMATH OF PCA RULING ON SOUTH CHINA SEA
Authors: Amalia Prita , Budhijanto Danrivanto , Chandrawulan AnAn
Published: October 2020

Purpose: This study aims to scrutinize existing economic dispute mechanisms between ASEAN and PRC which can promote fairness and effectivity. With examining PRC’s non-compliance to PCA awards in the South China Sea case, this article aims to link between the rule-breaking action of PRC (the territorial dispute) and the preventive action of ASEAN. Methodology: This research uses the juridical empiric method, which analyzes the dispute resolution legal framework between ASEAN and PRC. Main Findings: ASEAN and its legal instruments were not designed to provide a fair and effective dispute resolution mechanism that can prevent both PRC’s non-compliance to international law and ensure fairness in economic disputes. Implications/Applications: Organizational behavior is important for family businesses and due to the difficult environment faced by family businesses in order to be competitive in our country and in global markets; a good option for owners is to invest in organizational behavior as a market strategy. Novelty/Originality of this study: This study shows that the contest of ASEAN-China partnership mentioned proof that ASEAN and PRC are not yet completely separated because of the SCS issue. Based on it, a conviction should not drastically block the economic partnership of the two or destroy the bridges between different legal systems. Thus, the initiative will fundamentally promote peace and stability in the region.
ОЦЕНКА ЭФФЕКТИВНОСТИ ЦИКЛИЧНО-ПОТОЧНОЙ ТЕХНОЛОГИИ В УСЛОВИЯХ СОВРЕМЕННЫХ КАРЬЕРОВ
Authors: Журавлев Артем Геннадиевич , Семенкин Александр Владимирович
Published: October 2020

Актуальность исследования заключается в том, что применение циклично-поточной технологии в рациональных для нее условиях позволяет заметно сократить затраты на транспортирование горной массы, однако имеет особенности и ограничения, в частности большой объем капитальных затрат. Поэтому необходимо применение методик, обеспечивающих достоверный расчет окупаемости проекта и оптимизацию его технико-экономических параметров. Цель: на основе анализа чистого дисконтированного дохода установить области экономичного применения комплексов циклично-поточной технологии в сравнении с экскаваторно-автомобильными комплексами. Объекты: горнотехнические факторы комплексов циклично-поточной технологии и экскаваторно-автомобильных комплексов (годовая производительность, высота подъема горной массы, вид транспортируемой горной массы, технологические особенности размещения дробильно-конвейерного комплекса в карьерном пространстве). Методы: научный и технико-экономический анализ, графоаналитический. Результаты. Приводится обзор применения современных комплексов циклично-поточной технологии на карьерах России. Показаны результаты расчета экономического эффекта от применения комплексов циклично-поточной технологии в сравнении с экскаваторно-автомобильными комплексами по методике, разработанной в ИГД УрО РАН. В результате исследования определен срок окупаемости дополнительных инвестиций на вскрышной комплекс циклично-поточной технологии с разносом борта карьера, учитывающий дисконтирование затрат, при различных технологических параметрах (высота подъема горной массы от 180 до 680 м, годовая производительность комплексов от 5 до 30 млн т/год). Показано изменение разницы чистого дисконтированного дохода по вариантам циклично-поточная технология-экскаваторно-автомобильный комплекс в зависимости от горнотехнических параметров комплексов. Установлена область наиболее экономичного применения циклично-поточной технологии с ленточными конвейерами стандартного уклона (до 16°) при разносе борта карьера под дробильно-конвейерный комплекс по затратам на транспорт.
УТИЛИЗАЦИЯ БАЛЛАСТНОЙ ПОПУТНО ДОБЫВАЕМОЙ ВОДЫ С ПРИМЕНЕНИЕМ ТЕХНОЛОГИИ СКВАЖИННОЙ СЕПАРАЦИИ ВОДОНЕФТЯНЫХ ЭМУЛЬСИЙ
Authors: Лекомцев Александр Викторович , Дерендяев Константин Алексеевич , Бурцев Андрей Сергеевич , Степаненко Иван Борисович , Жигарев Даниил Борисович
Published: October 2020

Актуальность. Одной из основных проблем нефтедобывающей промышленности в сфере добычи нефти и газа является добыча больших объемов балластной воды. Средняя кратность перекачиваемой воды к нефти может составлять 4:1 и более. На территории Пермского края данная проблема является особенно актуальной, так как многие месторождения находятся на 3 и 4 стадиях разработки и требуют внедрения новых технологий для более рентабельной добычи нефти. В связи с перекачкой больших объемов жидкости происходит более быстрый процесс износа оборудования и появляются дополнительные затраты электроэнергии для его использования. В связи с этим внедрение технологии скважинной и кустовой сепарации водонефтяной эмульсии является одним из наиболее эффективных способов решения производственной задачи путем децентрализации системы сбора и подготовки скважинной продукции. Цель:уменьшение затрат на сбор и подготовку скважинной продукции путем применения технологии кустовой сепарации водонефтяной эмульсии при децентрализованной системе подготовки. Объект: кусты скважин со средней обводненностью65–70% и более. Методы:обзор научной литературы, моделирование процесса кустовой сепарации в Aspen HYSYS; лабораторные исследования на созданном макете, имитирующем скважину. Результаты.Представлена технология кустового разделения продукции скважин на нефть и воду с дальнейшимиспользованием попутнодобываемой воды в системе поддержания пластового давления. Представлена принципиальная технологическая схема установки. Проведены лабораторные испытания, выявлены оптимальные параметры её работы.Приведена технико-экономическое оценка реализации технологии и обоснованные технические решения.
Sudoku puzzles for practicing SI prefixes: A case study with Turkish undergraduates
Authors: Urek Handan
Published: October 2020

The purpose of this study was to develop two Sudoku puzzles for undergraduate students which can be utilised in the context of introductory physical science courses in order to assist them to practice SI prefixes. For this reason, SI prefixes for decimal multiples and submultiples were addressed in two separate puzzles. To test the puzzles, a case study was conducted with 20 biology teaching students studying their first year in a state university in Turkey. Data were collected with the help of a questionnaire posed to the students before and after the application of the puzzles. According to the results, 18 students (90%) completed the puzzles successfully. In addition, the students agreed that solving the Sudoku puzzles made contributions to them in terms of practicing SI prefixes. It is recommended that the Sudoku puzzles developed in this study might be used efficiently for all undergraduate students taking courses such as general chemistry and physics.

 

Keywords: SI prefixes, educational games, Sudoku puzzles, introductory science courses.
Social health and environmental behavior of students in the digital age
Authors: Zakharova Vera A. , Chernov Ilya V. , Nazarenko Tatiana , Pavlov Pavel V. , Lyubchenko Vasily S. , Kulikova Anna A.
Published: October 2020

Abstract:  This paper describes the importance of theoretical understanding of modern social health, educational and environmental behavior of students in the digital age. The purpose of this research is to analyze the concepts and trends of social health and environmental behavior of students in the context of modern social digitalization process. The paper deals with the framework and methodology of modern social and philosophical theories devoted to the problems of digital society and digital technologies. The theoretical and methodological approaches analyzed to the study of modern social digitalization processes, their negative and positive trend, and the impact of these trends on social health and environmental behavior of Students in education. In this paper, the process of digitalization is inconsistent: providing new technological opportunities for communication and education, including environmental education and students’ environmental projects that has a negative impact on consciousness and behavior of young people. The results showed that there is a need to form creative personality in education through the modern digital era. The further research stated in the field of social health and formation of students’ environmental behavior in the context of modern information, communication technologies and development of digital society in the education.

Keywords: Digital Age, digital technologies, students, social health, environmental behavior
Using the interactive whiteboard for teaching from the viewpoint of physics teachers in the Sultanate of Oman
Authors: Hendawi Manal , Hendawi Manal , Almamari Rashid Juma
Published: October 2020

Interactive whiteboards are provided in most schools in Oman, including those in the Al-Batinah North Governorate of the Sultanate, but many are not activated. Some teachers abandon them despite their presence and prefer to use the traditional blackboard or whiteboard for teaching. This study reveals the views of physics teachers in the Al Batinah North Governorate about the use of the interactive whiteboard for teaching physics. This study adopts a descriptive approach to collecting data from 377 male and female physics teachers, undertaken in the second semester of the 2017-2018 academic year. Statistical analysis shows that the teachers’ responses to the tool were positive and profound, and there were no significant differences in their views about the effectiveness of using interactive whiteboards for teaching due to the variables of gender, educational qualification, or years of experience. This result is satisfactory because of the similarity of the job environment for all members of the sample, which leads to the absence of a difference in the viewpoints of male and female teachers. In light of the results, the study recommends holding workshops and training courses for teachers to develop their skills in using the interactive whiteboard in teaching and conducting similar studies in other provinces with larger samples to generalize the results.

Keywords: interactive whiteboard; teaching; physics teachers; Oman
Análisis de la enseñanza de conceptos cuánticos en la unidad de “Estructura atómica de la materia” en libros de texto
Authors: Muñoz-Burbano Zulman Estela , Solbes Jordi , Ramos German Enrique
Published: October 2020

En el artículo se analiza cómo se presentan conceptos cuánticos en la unidad de “Estructura atómica de la materia” en los libros de texto de grado décimo en el área de química. El objetivo es indagar si en esta unidad se realiza la transposición de conceptos cuánticos básicos relacionados con la estructura atómica de la materia y cómo se hace. Para ello, se trabajó desde una metodología de análisis de contenido, con el uso de una rejilla de análisis. Las conclusiones permiten afirmar que los libros de texto analizados no utilizan los conceptos cuánticos para desarrollar la unidad de “Estructura atómica de la materia”. Por el contrario, se presentan omisiones, yuxtaposición de conceptos clásicos y cuánticos e incluso errores conceptuales, sobre todo en la transposición de la dualidad de los objetos cuánticos, en las relaciones de indeterminación y en los números cuánticos.
Prevalence of cytogenetic abnormalities and FMR1 gene premutation in a Portuguese population with premature ovarian insufficiency
Authors: Neves Ana Raquel , Pais Ana Sofia , Ferreira Susana Isabel , Ramos Vera , Carvalho Maria João , Estevinho Alexandra , Matoso Eunice , Geraldes Fernanda , Marques Carreira Isabel , Águas Fernanda
Published: October 2020

Introduction: Chromosome abnormalities contribute to about 10% of cases of premature ovarian insufficiency. Most are associated with X chromosome. Fragile mental retardation 1 (FMR1) gene premutation has an estimated prevalence of 1% - 7% in sporadic cases and up to 13% in familial cases. Our aim was to describe the clinical characteristics, cytogenetic and FMR1 testing of a Portuguese population with premature ovarian insufficiency.Material and Methods: Women diagnosed with premature ovarian insufficiency in a Portuguese tertiary centre were retrospectivelyanalysed. Data were retrieved from electronic medical records including clinical characteristics, cytogenetic and FMR1 testing. The main outcome measures were the prevalence of chromosome abnormalities and FMR1 premutation in a Portuguese population with premature ovarian insufficiency.Results: Ninety-four patients were included, with a median age at menopause of 36 years. The prevalence of chromosome abnormalities was 16.5% (14/85) and most were X chromosome related (78.6%). The prevalence of FMR1 premutation was 6.7% (6/90). The prevalence of karyotypic abnormalities or FMR1 premutation did not differ significantly between familial and sporadic cases. Neither chromosome abnormalities nor FMR1 premutation influenced age at menopause or follicle stimulating hormone levels at diagnosis in premature ovarian insufficiency patients.Discussion: This is the first study describing the clinical characteristics and both cytogenetic and FMR1 testing in a Portuguese population with premature ovarian insufficiency. The rate of chromosome abnormalities in our sample was higher than in other populations, while the prevalence of FMR1 premutation was similar to previous reports.Conclusion: Our results underline the importance of genetic screening in premature ovarian insufficiency patients in both etiological study and genetic counselling.
Implicações e entraves da efetivação do direito à educação infantil no Brasil
Authors: Lopes Thais Andrea Carvalho de Figueirêdo
Published: October 2020

Com a luta dos movimentos sociais organizados em prol do direito à uma educação infantil de qualidade no Brasil temos avançado no que diz respeito a legislação vigente, entretanto, constatamos a existência de muitos entraves na materialização do referido direito. Foram examinados alguns desses entraves como os critérios de matrícula adotados por municípios frente a demanda maior do que a oferta de vagas. Constatou-se que a implementação do Sistema Nacional de Educação, incluindo a efetuação do Custo Aluno Qualidade inicial e do Custo Aluno Qualidade, poderiam contribuir para o alcance de um padrão de qualidade para a educação infantil em todo o país.
Membrane Solution for a Catenary Dome
Authors: Gohnert Mitchell , Bradley Ryan
Published: October 2020

A membrane solution for a catenary dome is presented. The theory solves for the meridian and hoop stresses, assuming a symmetrical load. The theory is extended to solve for domes with an oculus, or rather a circular hole at the apex of the dome. The proposed theory does not include
boundary effects, but a verification of the theory indicates that the boundary effects are minimal, compared to other dome shapes. The theory is verified by comparing the equations with a finite element analysis, which indicates an almost perfect match. Only a slight deviation occurs near
the boundary, substantiating the legitimacy of the solution.
Quines are the Fittest Programs - Large Nesting Algorithmic Probability Converges to Constructors
Authors: Sarkar Aritra , Al-Ars Zaid , Bertels Koen
Published: October 2020

In this article we explore the limiting behavior of the universal prior distribution obtained when applied over multiple meta-level hierarchy of programs and output data of a computational automata model. We were motivated to alleviate the effect of Solomonoff's assumption that all computable functions or hypotheses of the same length are equally likely, by weighing each program in turn by the algorithmic probability of their description number encoding. In the limiting case, the set of all possible program strings of a fixed-length converges to a distribution of self-replicating quines and quine-relays - having the structure of a constructor. We discuss how experimental algorithmic information theory provides insights towards understanding the fundamental metrics proposed in this work and reflect on the significance of these result in digital physics and the constructor theory of life.
The Contribution of Endothelial Dysfunction in Systemic Injury Subsequent to SARS-Cov-2 Infection
Authors: Maiuolo Jessica , Mollace Rocco , Gliozzi Micaela , Musolino Vincenzo , Carresi Cristina , Paone Sara , Scicchitano Miriam , Macrì Roberta , Nucera Saverio , Bosco Francesca , Scarano Federica , Zito Maria Caterina , Ruga Stefano , Tavernese Annamaria , Mollace Vincenzo
Published: October 2020

Abstract: SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) infection is associated, alongside with lung infection and respiratory disease, to cardiovascular dysfunction that occurs at any stage of the disease. This includes ischemic heart disease, arrhythmias, and cardiomyopathies. The common pathophysiological link between SARS-CoV-2 infection and the cardiovascular events is represented by coagulation abnormalities and disruption of factors released by endothelial cells which contribute in maintaining the blood vessels into an anti-thrombotic state. Thus, early alteration of the functionality of endothelial cells, which may be found soon after SARS-CoV-2 infection, seems to represent the major target of SARS CoV-2 disease state and accounts for the systemic vascular dysfunction that leads to detrimental effect in terms of hospitalization and death accompanying the disease. In particular, the molecular interaction of SARS-CoV-2 with ACE2 receptor located in endothelial cell surface, either at the pulmonary and systemic level, leads to early impairment of endothelial function which, in turn, is followed by vascular inflammation and thrombosis of peripheral blood vessels. This highlights systemic hypoxia and further aggravates the vicious circle that compromises the development of the disease leading to irreversible tissue damage and death of patients with SARS CoV-2 infection. The review aims to assess some recent advances to define the crucial role of endothelial dysfunction in the pathogenesis of vascular complications accompanying SARS-CoV-2 infection. In particular, the molecular mechanisms associated to the interaction of SARS CoV-2 with ACE2 receptor located on the endothelial cells are highlighted to support its role in compromising endothelial cell functionality. Finally, the consequences of endothelial dysfunction in enhancing pro-inflammatory and pro-thrombotic effects of SARS-CoV-2 infection are assessed in order to identify early therapeutic interventions able to reduce the impact of the disease in high-risk patients.
Estimates of Cancer Mortality Attributable to Carcinogenic Infections in Italy
Authors: Ferrara Pietro , Conti Sara , Agüero Fernando , Albano Luciana , Masuet-Aumatell Cristina , Ramon-Torrell Josep Maria , Mantovani Lorenzo Giovanni
Published: October 2020

Several infectious agents are ascertained causes of cancer, but the burden of cancer mortality attributable to carcinogenic infections in Italy was still unknown. To tackle this issue, we calculated the rate and regional distribution of cancer deaths due to infections sustained by seven pathogens ranked as group-1 carcinogenic agents in humans by IARC. Population attributable fractions related to these agents were applied to annual statistics of cancer deaths coded according to 10th International Classification of Diseases. The estimated burden of cancer mortality attributable to carcinogenic infections in Italy during the period 2011-2015 was on average 8.7% of all cancer deaths registered yearly. Approximately 60% of deaths occurred in men and almost the whole burden was due to four infectious agents (Helicobacter pylori, HCV, HPV, and HBV). The analysis of regional distribution showed a higher number of infection-related cancer deaths in the northern regions, where the estimates reached 30 (Liguria) and 28 (Friuli Venezia Giulia) deaths per 100,000 inhabitants in 2015. Since one-twelfth of cancer deaths were attributable to these modifiable risk factors, the implementation of appropriate prevention and treatment interventions may help to reduce the impact of these infections on cancer mortality.
Antinuclear Autoantibodies in Health: Autoimmunity Is Not a Synonym of Autoimmune Disease
Authors: Pashnina Irina A , Krivolapova Irina M , Fedotkina Tamara V , Ryabkova Varvara A , Chereshneva Margarita V , Churilov Leonid P , Chereshnev Valeriy A
Published: October 2020

Incidence of autoimmune diseases increases. Antinuclear antibodies (ANA) testing is a critical tool for their diagnosis. However, ANA prevalence in health increased over last decades, especially among young people. ANA in health occur in low concentrations, with prevalence up to 50% in some populations, which demands a cutoff revision. The review deals with origin and probable physiological or compensatory function of ANA in health, according to the concept of immunological clearance, theory of autoimmune regulation of cell functions and the concept of functional autoantibodies. Considering ANA titers ≤1:320 as a serological marker of autoimmune diseases seems inappropriate. The role of anti-DFS70/LEDGFp75 autoantibodies is highlighted as possible anti-risk biomarker for autoimmune rheumatic disorders. ANA prevalence in health is different in various regions due to several underlying causes discussed in the review, all influencing in additive combinations according to the concept of the mosaic of autoimmunity. Not only titer, but the HEp-2 IFA staining patterns, like AC-2, is also important. Accepting autoantibodies as a kind of bioregulators, not only upper, but also lower borders of their normal range should be determined. Not only their excess, but also lack of them or “autoimmunodeficiency” could be a reason of disorders.
Extension of the Stoney Equation for a Taiko Wafer (Si and SiC)
Authors: Landi Antonio , Vinciguerra Vincenzo
Published: October 2020

An extension of the Stoney formula for the case of a back side metallized 8” silicon taiko wafer has been developed, in the elastic regime, within the frame of the theory of elasticity. A good correlation between the calculated warpage, determined by the stress released by a given back side metallization (BSM), and the corresponding experimental warpages of the same thick metal layers deposited on an 8” silicon taiko wafer provides evidences of the correctness of the developed theory. This development suggests the possibility to extend this approach to the case of 8” taiko wafers based on a wide band gap semiconductor such as silicon carbide (SiC).
On the Effectiveness of Bayesian AutoML methods for Physics Emulators
Authors: Mitra Peetak , Dal Santo Niccolò , Haghshenas Majid , Mitra Shounak , Daly Conor , P. Schmidt David
Published: October 2020

The adoption of Machine Learning (ML) for building emulators for complex physical processes has seen an exponential rise in the recent years. While neural networks are good function approximators, optimizing the hyper-parameters of the network to reach a global minimum is not trivial, and often needs human knowl- edge and expertise. In this light, automatic ML or autoML methods have gained large interest as they automate the process of network hyper-parameter tuning. In addition, Neural Architecture Search (NAS) has shown promising outcomes for improving model performance. While autoML methods have grown in popularity for image, text and other applications, their effectiveness for high-dimensional, complex scientific datasets remains to be investigated. In this work, a data driven emulator for turbulence closure terms in the context of Large Eddy Simulation (LES) models is trained using Artificial Neural Networks and an autoML frame- work based on Bayesian Optimization, incorporating priors to jointly optimize the hyper-parameters as well as conduct a full neural network architecture search to converge to a global minima, is proposed. Additionally, we compare the effect of using different network weight initializations and optimizers such as ADAM, SGDM and RMSProp, to explore the best performing setting. Weight and function space similarities during the optimization trajectory are investigated, and critical differences in the learning process evolution are noted and compared to theory. We observe ADAM optimizer and Glorot initialization consistently performs better, while RMSProp outperforms SGDM as the latter appears to have been stuck at a local minima. Therefore, this autoML BayesOpt framework provides a means to choose the best hyper-parameter settings for a given dataset.