bluuebunny/crossref_metadata_2025 huggingface dataset:
Behaviour of Polypropylene Fibre on the Mechanical Charateristics of Fibre Reinforced Concrete using Polypropylene Fibers
Authors:   M.Tech Scholar, Civil Engg. from Desh Bhagat University, Mandi Gobindgarh, Punjab, India., Grewal Er.Sukhvir Singh , jaryal Er. Suryakant ,   Assistant Professor,civil Engg. Mandi Gobindgarh, Punjab, India.
Published: November 2020

Concrete as a building material, used most extensively has revolutionized the construction industry by its properties like high strength and workability. However, the engineering structures are surrounded by the combustible materials, making them prone to the blast impact loading as well as fire. Concrete structures which are subjected to the conditions of high temperature, are susceptible to physical and chemical changes leading to their degradation. The fire can cause the damage to the structure as well as human lives. The need of the hour is to study the impact of fire on the concrete structures as it is mostly used as the construction entity in buildings and other structures. In our research paper, the use of Polypropylene fibers (PPFs) in concrete and their impact on various attributes of concrete like Compression stréngth, split tensile and flexurál strength has been studied. The impact of PPFs on concrete at different temperatures has also been analyzed. The results have shown that the compression strength got raised due to the inclusion of PPFs in the concrete by 9.08%, splitting tensile by 59.25% and flexural strength by 27.36% after 4 weeks of curing. The addition of PPFs to the concrete has also resulted in an increase in strength then the conventional concrete at temperatures of 400oC and 800oC
A Pinnacle Technique for Detection of COVID-19 Fake News in Social Media
Authors:   Assistant Professor Department of Computer Science at Sacred Heart College, Tirupattur and Pursuing her Ph.D. Degree in Periyar University, Bangalore, India., Sandrilla, R. , Devi M. Savitha ,   Department of Computer Science, Periyar University Constituent College of Arts and Science, University, Bangalore, India.
Published: November 2020

Today the world is gripped with fear of the most infectious disease which was caused by a newly discovered virus namely corona and thus termed as COVID-19. This is a large group of viruses which severely affects humans. The world bears testimony to its contagious nature and rapidity of spreading the illness. 50l people got infected and 30l people died due to this pandemic all around the world. This made a wide impact for people to fear the epidemic around them. The death rate of male is more compared to female. This Pandemic news has caught the attention of the world and gained its momentum in almost all the media platforms. There was an array of creating and spreading of true as well as fake news about COVID-19 in the social media, which has become popular and a major concern to the general public who access it. Spreading such hot news in social media has become a new trend in acquiring familiarity and fan base. At the time it is undeniable that spreading of such fake news in and around creates lots of confusion and fear to the public. To stop all such rumors detection of fake news has become utmost important. To effectively detect the fake news in social media the emerging machine learning classification algorithms can be an appropriate method to frame the model. In the context of the COVID-19 pandemic, we investigated and implemented by collecting the training data and trained a machine learning model by using various machine learning algorithms to automatically detect the fake news about the Corona Virus. The machine learning algorithm used in this investigation is Naïve Bayes classifier and Random forest classification algorithm for the best results. A separate model for each classifier is created after the data preparation and feature extraction Techniques. The results obtained are compared and examined accurately to evaluate the accurate model. Our experiments on a benchmark dataset with random forest classification model showed a promising results with an overall accuracy of 94.06%. This experimental evaluation will prevent the general public to keep themselves out of their fear and to know and understand the impact of fast-spreading as well as misleading fake news.
A Benchmark for Suitability of Alluxio over Spark
Authors:   Computer Science and Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India., Rajaram Kanchana , Haridass Kavietha ,   Computer Science and Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, India.
Published: November 2020

Big data applications play an important role in real time data processing. Apache Spark is a data processing framework with in-memory data engine that quickly processes large data sets. It can also distribute data processing tasks across multiple computers, either on its own or in tandem with other distributed computing tools. Spark’s in-memory processing cannot share data between the applications and hence, the RAM memory will be insufficient for storing petabytes of data. Alluxio is a virtual distributed storage system that leverages memory for data storage and provides faster access to data in different storage systems. Alluxio helps to speed up data intensive Spark applications, with various storage systems. In this work, the performance of applications on Spark as well as Spark running over Alluxio have been studied with respect to several storage formats such as Parquet, ORC, CSV, and JSON; and four types of queries from Star Schema Benchmark (SSB). A benchmark is evolved to suggest the suitability of Spark Alluxio combination for big data applications. It is found that Alluxio is suitable for applications that use databases of size more than 2.6 GB storing data in JSON and CSV formats. Spark is found suitable for applications that use storage formats such as parquet and ORC with database sizes less than 2.6GB.
Feasibility Study on the Transportation Network in the East Coast of Sabah
Authors:   Faculty of Engineering University Malaysia Sabah, Kota Kinabalu, Sabah., Ladin Mohd Azizul Bin , Jaimin Fariq Ismeth ,   Faculty of Engineering University Malaysia Sabah, Kota Kinabalu, Sabah., Taha Nazaruddin Abdul ,   Faculty of Engineering University Malaysia Sabah, Kota Kinabalu, Sabah., Gungat Lillian ,   Faculty of Engineering University Malaysia Sabah, Kota Kinabalu, Sabah., Mirasa Abdul Karim ,   Faculty of Engineering University Malaysia Sabah, Kota Kinabalu, Sabah., Idris Sidah Binti ,   Faculty of Engineering University Malaysia Sabah, Kota Kinabalu, Sabah.
Published: November 2020

Sabah is located in the northern part of Borneo Island. Three nations share the island namely Malaysia, Brunei, and Indonesia. The study focuses on the transportation network in the east coast of Sabah, mainly Semporna and Tawau. In general, most of the transportation network in Sabah is known to be in poor conditions. Although there are efforts to revamp the transportation system, it is met with heavy resistance due to budget constraints. Transportation network in Tawau and Semporna is in poor condition as heavy trucks especially from palm oil plantations, quarries, and logging areas pass through the main road which goes through village areas. For this study, the information is gathered by conducting site visitation to the areas, engaging with local communities as well as collecting feedback through surveys.
Cross Language Information Retrieval (CLIR): A Survey of Approaches for Exploring Web Across Languages
Authors:   Department of Computer Science, Sant Gadge Baba Amravati University, Amravati (MS), India., Pachpande Suhas D. , Bhalchandra Parag U. ,   School of Computational Sciences, Swami Ramanand Teerth Marathwada University, Nanded (MS), India.
Published: November 2020

In the era of globalization, internet being accessible and affordable has gained huge popularity and is widely being used almost everywhere by Government, private organizations, companies, banks, etc. as well as by individuals. It has empowered its users to contribute to the creation of information on web enabling them to use their native languages which consequently has drastically increased the volume of web-accessible documents available in languages other than English. This exponential growth of information on the internet has also induced several challenges before the information retrieval systems. Most of the present monolingual information retrieval systems can retrieve documents in the language of query only, missing the information in other languages that may be more relevant to the user. The need of information retrieval systems to become multilingual has given rise to the research in Cross Language Information Retrieval (CLIR) which can cross the language barriers and retrieve more relevant results from documents in different languages. This article is a review of motivation, issues, work and challenges related to various CLIR approaches. Starting with the most fundamental approaches of translation, it is attempted to study and present a review of more advanced approaches for enhancing the retrieval results in CLIR proposed by various researchers working in this domain.
Millimeter Wave Communications with OMA and NOMA Schemes for Future Communication Systems
Authors:   Department of Electronics and Communication Engineering, SRM University,  Amaravati, (Andhra Pradesh), India., Rajak Shaik , Chakravarthy Chappalli Nikhil ,   Department of Electronics and Communication Engineering, SRM University,  Amaravati, (Andhra Pradesh), India., Shaik NafisaNikhath ,   Department of Electronics and Communication Engineering, SRM University,  Amaravati, (Andhra Pradesh), India., Chinnadurai Sunil ,   Department of Electronics and Communication Engineering, SRM University,  Amaravati, (Andhra Pradesh), India.
Published: November 2020

Millimeter-wave (mm Wave) communications had been considered widely in recent past due to its largely available bandwidth. This paper describes a detailed survey of mm Wave communications with orthogonal multiple access (OMA), non-orthogonal multiple access (NOMA) schemes, physical design and security for future communication networks. mm Wave provides super-speed connectivity, more reliability, and higher data rate and spectral efficiency. However, communications occurring at mm Wave frequencies can easily get affected by interference and path loss. Various schemes such as small cells, heterogeneous network and hybrid beamforming are used to overcome interferences and highlight the prominence of mm Wave in future communications systems.
Prevention of Patch Wall (PW) Formation of Building Surfaces by Making the PW s Effects to Below- Awareness-Level of Concern by Making the PW Innovation of Long-Lasting Nature as Attributive Responsibility of the Building s Structural Component
Authors:   Assistant Professor, Department of Civil Engineering, Global Institute of Management & Technology, (West Bengal), India., Biswas Prasanta , Paul Atanu ,   Department of Civil Engineering, Global Institute of Management & Technology, (West Bengal), India., Karmakar Jayanta Kumar Karmakar, ,   Department of Civil Engineering, Global Institute of Management & Technology, (West Bengal), India., Sk. Sohel ,   Department of Civil Engineering, Global Institute of Management & Technology, (West Bengal), India., Mondal Biltu ,   Department of Civil Engineering, Global Institute of Management & Technology, (West Bengal), India., Banerjee Sujay ,   Department of Civil Engineering, Global Institute of Management & Technology, (West Bengal), India., Sen Nabamita ,   Department of Civil Engineering, Global Institute of Management & Technology, (West Bengal), India., Mondal Binka ,   Department of Civil Engineering, Global Institute of Management & Technology (G.I.M.T) West Bengal, India.
Published: November 2020

To make building habitat & related compound a good from all possible dimensions is the best motive of this paper of research interest. From the very stage of exposition to earth‟s ambient atmosphere, building materials start experiencing the sufferance, the sufferance by atmosphere on them. It is significant on the exterior portions (of different members like walls, columns, member joints etc.) of the habitat. It is not a new thing to accommodate new concepts to gather with to know the field to prepare the habitat pollution free & with better submergence of knowledge to make it better by reducing its effected pollutions. This time it is the subject of the effect of residence of water gliding from water tank on the habitat, especially on the wall (external) of the habitat. Gliding down on the wall is frequent common phenomenon in the habitat. It is, in any way of happening, found that the water tank (basements, pipe-fixtures etc.) & its normally positioned vertical habitat walls (adjoining) both expose as the thing exposed by the atmosphere, by illustrating their patch-looking exhibition. The water tank which is meant for the drinking water repository for the habitat never holds this exhibition away from exposition of such. This study is about the determination of impact of such patch-wall on its external environment (ambient) & necessary innovation to reduce & improve the walls under such subjection of expose effect.
A Bit on the Right, A Bit on the Left: Towards Logical Bundle Adjustment
Authors:   Aix Marseille University, University of Toulon, CNRS, UMR,  Marseille, France., Ellefi Mohamed Ben , Drap Pierre ,   Aix Marseille University, University of Toulon, CNRS, UMR, Marseille, France.
Published: November 2020

This article proposes an innovative approach fully based on logic to determine the relative positions and orientations of objects in a scene photographed from different points of view as well as those of the cameras used to take the pictures. The proposal is absolutely not based on 2D feature extraction, projective geometry or least squares adjustment but on a logical approach based on an enumeration of simple relationships between the objects visible in the photos. It is an approach imitating a natural and unconscious reasoning that each of us makes by observing a scene: is this object more to the right than this one? And is this other one further away from me than the one who’s partially hiding it from me? It is therefore a question of approaching the problem by identifying and recognizing objects in photographs and not by measuring millions of points in space without having any idea of the object to which they belong. This article presents a ”proof of concept” based on virtual experimentation: in a discrete 3D space, a simple scene, composed of spheres of different colors and cameras, is modelled in a 3D format. In this work the positioning of the spheres and cameras is limited to a plane. Cameras are placed in the scene in order to see the spheres and then for each camera an image is generated. The application reads each image and deducts relationships between object and camera. These relationships based on the visible occlusions between the projections of the objects onto the photographs, are formalized according to Allen’s relationships. A knowledge base is implemented to allow an iterative process of SPARQL queries for qualitative spatial reasoning leading to a set of possible solutions. Finally, the system deduces the relative positions between objects and cameras and the result is imported and can be used within several photogrammetry software suites.
ЎЗБЕК БОЛАЛАР АДАБИЁТИДА ТОПИШМОҚ СТИЛИЗАЦИЯСИ
Authors: RAZHABOVA Rano
Published: November 2020

Мақолада фольклорнинг энг қадимий, оммавий, анъанавий паремик жанрларидан бири бўлган топишмоқнинг кейинчалик замонавий адабиётда бевосита стилизация қилиниши асосида болалар учун адабий кўринишлари яратилган, уларнинг халқ топишмоқлари билан ўхшаш ва Халқ топишмоқлари сингари адабий топишмоқлар ҳам мавзусига кўра жуда бой ва ранг-барангдир. Улар табиат ҳодисалари, ой ва фасллар, ер ва осмон жисмлари, сувликлар, тоғ-у қир-адирлар, ўсимлик ва ҳайвонот дунёси, инсон тана аъзолари, мева-сабзавотлар, полиз экинлари, рўзғор буюмлари ва жиҳозлари, меҳнат қуроллари, мусиқа асбоблари, замонавий техника турлари, ўқув воситалари, озиқ-овқат турлари ҳақида учрайди. Адабий топишмоқларда худди халқ топишмоқлари сингари ҳам ўтмиш буюмлари, ҳам ҳозирги пайтда фан-техника ва маданиятнинг ривожланиши натижасида ҳаётимизга кириб келган. Адабий топишмоқлар, асосан, шеърий кўринишда яратилиши, поэтик жиҳатдан ўхшатиш, қиёслаш, зидлантириш ва шартли кўчимга асосланади. Адабий топишмоқ халқ топишмоқлари тузилиши ва услубида яратилган бўлса-да, маълум бир шоир томонидан ижодий яратилганлиги учун адабий топишмоқ сифатида қаралади. Улар ритмик изчиллиги, бадиий оҳангдорлиги, қофияларнинг мўл-кўллиги ва хилма-хиллиги билан ажралиб туради
DEMOGRAPHIC PROFILE OF PATIENTS WITH RETINAL VEIN OCCLUSION-AN OBSERVATIONAL STUDY
Authors: Hegde Shubhratha S. , J Asha Rani , Dharwadkar Sandhya , Prakash D. N.
Published: November 2020

BACKGROUND:Retinal Vein Occlusion(RVO) is a multifactorial, with many systemic and ocular risk factors.The incidence of RVO has increased with increased life expectancy and increased incidence of risk factors.
AIM:This study was done to determine the demographic characteristics and risk factors in a tertiary care hospital in South India.
METHODS:100 consecutive newly diagnosed cases of RVO were included in the study. A detailed history, complete ophthalmic examination and systemic evaluation was done.
RESULTS: The majority of the patients were aged more than 60 years(55%) with male preponderance(54%).The study also found that RVO was strongly associated with increasing age.Hypertension,dyslipidemia,diabetes mellitus,smoking and hyperhomocysteinemia were important systemic risk factors.Glaucoma was an important ocular risk factor.BRVO is the most common type of RVO.
CONCLUSION:RVO is associated with many systemic and ocular diseases.Identifying and managing these risk factors help in preventing a second attack in either eye and thereby the visual morbidity.
Ethical Consideration for Counsellor Practice as Perceived by Student Counsellors in Nigerian Universities
Authors: Oghounu A. E. , Enakpoya E. E.
Published: November 2020

The paper examined the perception of student counsellors studying Guidance and Counselling in various Nigerian Universities on ethical codes which should guide and protect the counselling profession. Four research questions were raised to guide the study and two corresponding hypotheses were tested at 0.05 level of significance. The study adopted the descriptive survey design, with a sample of 1,500 students, drawn from selected Nigerian universities using the multistage sampling technique. The instrument used to gather data for the study was a 50 item questionnaire constructed by the researcher. The psychometric properties were determined and found adequate for use. The test-re-test method was applied to determine reliability which yielded r = 0.88. Senior lecturers in the Department of Guidance and Counselling ascertained content and construct adequacy of the instrument. Data collected were analysed using mean and standard deviation to answer research questions and t-test to test the hypotheses. The study found out that respondents perceived counselling codes highly irrespective of their gender and religious beliefs although male respondents showed stronger agreement. It was therefore recommended that the Counselling Association of Nigeria should develop counselling ethical codes for professional counselling practice in Nigeria without considering any bias for gender and religion.
Employee Turnover Intention at a Historically Disadvantaged South African University
Authors: Bwowe Patrick W.
Published: November 2020

This study was motivated by the desire to explore the nature and level of turnover intention at a historically disadvantaged university in South Africa. A sample of 40 participants namely: academics, support and technical staff from the selected institution were purposely identified to participate in the study. The study was mainly exploratory in nature and used quantitative and descriptive research techniques to assess and explain seven behavioural intention factors to leave or stay in the current organisation. In addition, the study investigated factors that are likely to influence employee turnover intention in organisations. Findings show high desirability of employees to leave their present job. It further indicates that the ease of movement is influenced by external factors like availability of job opportunities elsewhere. Lack of advancement opportunities, job insecurity, workload, job opportunities and inadequate salary and benefits are the most influencing factors of turnover intention. The study is significant in that it provides important information on employees’ intent to leave. In addition, knowledge gained from it can be used to enhance understanding of factors that predict actual turnover and could also assist in controlling employees’ avoidance behaviours.
The Influence of Instagram-Assisted Project Based Learning Model on Critical Thinking Skills
Authors: Adekantari Popy , Su’ud  , Sukardi
Published: November 2020

In today’s 21st century, people are demanded to have the ability to communicate and to think critically. In addition, we are also expected to possess leadership qualities. In achieving such competencies, IT-Assisted Project Based Learning (PjBL) model can be used as an alternative. Hence, this study was conducted, aiming at determining whether there is an effect of Instagram-Assisted PjBL model on students' critical thinking skills in sociology subjects. This research was a Quasi-Experimental Study, with Nonrandomized Control Group Pretest–Posttest Design. The research data were obtained using objective tests in the form of multiple choice questions, which have passed validity, reliability, discrimination power, and difficulty level test. The data were analyzed using parametric statistical tests, in the form of comparative analysis and N-Gain. The results of the study showed that Instagram-Assisted Project Based Learning model had an impact on students' critical thinking abilities. The results of N-Gain test also showed that the increase in students of experimental class’ critical thinking skills is higher than that of the students in control class. This implies that Instagram-Assisted Project Based Learning models can be used as a supplement in strengthening constructivist-oriented learning theories.
A Philosophical Treatise and Educational Aspects on Fuzzy Control
Authors: Voskoglou Michael Gr.
Published: November 2020

Fuzzy Logic has found nowadays many applications to almost all sectors of human activity, withfuzzy control being one of the most important such applications. A control system regulates the behavior of adevice or another system with the help of a feedback controller. A fuzzy control system is a control system thatanalyses the input data in terms of variables which take continuous values in the interval [0, 1]. The presentarticle studies in detail the operation of fuzzy control systems and illustrates it by presenting an exampleof controlling a building’s central heating boiler.
FORMATION OF FOREIGN LANGUAGE COMMUNICATION OF AN ARMY OFFICER IN THE FRAMEWORK OF A PEDAGOGICAL EXPERIMENT: METHODOLOGY AND METHODOLOGY (THEORETICAL AND PRACTICAL ASPECTS)
Authors: Бикбаев Вадим Манцурович
Published: November 2020

В статье рассматриваются особенности, проблемы, противоречия и перспективные направления совершенствования иноязычной коммуникации в рамках профессионального становления офицера. Отмечается, что формирование иноязычной коммуникации офицера главным образом определяется внутренней мотивацией, связанной с осознанием необходимости изучения и применения иностранного языка в рамках профессиональной деятельности, а также с учетом взаимосвязанных между собой педагогических, личностных, профессионально-деятельностных и психологического факторов, характерных для военного образования и военной службы.

The article discusses the features, problems, contradictions and perspective directions for improving foreign language communication in the professional development of an officer. It is noted that the formation of foreign language communication of an officer is mainly determined by internal motivation associated with the awareness of the need to learn and use a foreign language in the framework of professional activities, as well as taking into account the interrelated pedagogical, personal, professional and psychological factors specific to military education and military service.
SPECIFICS OF TEACHING FOREIGN LANGUAGES FOR PROFESSIONAL COMMUNICATION TO STUDENTS SPECIALIZING IN “LEGAL SUPPORT OF NATIONAL SECURITY”
Authors: Подстрахова Анна Владимировна
Published: November 2020

В статье рассматриваются вопросы формирования у студентов-юристов универсальных компетенций в процессе обучения профессионально-ориентированному иностранному языку. Предлагаются пути оптимизации процесса обучения иностранному языку на примере курса «Иностранный язык в профессиональной сфере» в рамках специальности «Правовое обеспечение национальной безопасности».

The paper focuses on the problem of students` universal skills development while teaching foreign languages for professional communication. Ways to enhance efficiency of teaching/learning are proposed and tested among the students specializing in “Legal Support of National Security”.
SPORTS BRAND AMBASSADORS AS A MARKETING PROMOTION TOOL
Authors: Петрова Элиза Александровна , Артемьева Ольга Александровна
Published: November 2020

В статье автор рассматривает использование бренд-амбассадора как инструмента маркетинга; особое внимание уделяется изучению его сущности, сильных и слабых сторон, в том числе на практических примерах; рассмотрен международный опыт использования лидеров мнений как представителей спортивных брендов или коллекций; приведена классификация амбассадоров спортивных.

In the article, the author considers the use of a brand ambassador as a marketing tool; special attention is paid to the study of its essence, strengths and weaknesses, including practical examples; also the international experience of using opinion leaders as representatives of sports brands or collections is considered; at the end of the article the classification of sports ambassadors is given.
MICROGLYOCYTES MORPHOLOGY AFTER FOCAL ISCHEMIC STROKE IN A MOUSE BRAIN
Authors: Гиганова Анастасия Александровна , Ананьина Татьяна Викторовна , Кисель Алёна Андреевна , Ходанович Марина Юрьевна
Published: November 2020

Проведен цитологический анализ изменения морфологии микроглиоцитов в мозге мышей, перенесших локальную ишемию головного мозга посредством окклюзии средней мозговой артерии (MCAO). Описана специфика изменения морфологии микроглиоцитов в белом и сером веществе головного мозга в ипсилатеральном полушарии.

It was performed the cytological analysis of microglia morphology in mice underwent focal ischemia by means of middle cerebral artery occlusion (MCAO). The features of morphological microglyocyte changes in a white and gray matter of ipsilateral lesioned hemisphere was described.
ECONOMIC ENVIRONMENT OF ARCTIC LIQUEFIED NATURAL GAS SUPPLIESTO THE ASIAN-PACIFIC REGION COUNTRIES UNDER THE END OF THE “TRADE WAR” BETWEEN THE USA AND CHINA
Authors:   G. P. Luzin Institute for Economic Studies of the FRC “Kola Science Centre ofRAS”, Apatity, Russia, Ulchenko M. V.
Published: November 2020

Currently, the Asia-Pacific market is a priority goal for almost all major producers of liquefied natural gas(LNG). This is due to the relatively high price that local consumers are willing to pay, as well as the accelerated growth rate of natural gas consumption. At the same time, China is the main driver of growth in demand for LNGin the world, has concluded a trade agreement with the United States, which involves the purchase of energy resources worth more than $ 52 billion over two years. Given the decline in LNG prices, as well as increased competition, the issue of the prospects for sales of Russian Arctic gas on the market of the Asia-Pacific region becomes particularly relevant.The study provides a generalized assessment of the needs of the main importers of LNG ––China, South Korea and Japan, with a planning horizon of 4–5 years. The relatively high growth rates of the economy, partial rejection of nuclear energy, struggle to improve the environmental situation, as well as the desire to diversify supply routes explain the needs of the countries in the Asia-Pacific region for additional volumes of LNGin the near future. The analysis showed that both Japan and South Korea are interested in increasing the volume of imports of Russian arctic LNG, whose key advantages over most competitors are the price and relative proximity of sales markets. At the same time, the reduction in the number of operating gas drilling rigs in the United States indicates that it will not be possible to maintain the growth rate of LNG production at the level of 2018 and 2019.
ECONOMIC ACTIVITIES IN THE MURMANSK REGION:MANIFESTATION SPECIFICS AND OPTIMIZATION TERMS
Authors:   G. P. Luzin Institute for Economic Studies of the FRC “Kola Science Centre ofRAS”, Apatity, Russia, Bazhutova E. A.
Published: November 2020

The key role of economic activities is in ensuring development and growth of both national and regional economies. Under the modern conditions, the prospects for development of the Arctic regions of the Russian Federation are associated with implementation of large investment projects, which should give an “impetus” to development of adjacent sectors and Arctic regions, i.e. implementation of these projects should be ensured by concentration of economic activities and their further spread. Basing on previous research, it was found out that economic activities in the Murmansk region are characterized by the critically low level of manifestation and non-static type of prevailing economic activities of businesses and the state. At the same time, the region has a significant potential for development caused by its economic and geographical location, unique natural resources and sufficiently developed infrastructure compared to other Russian regions of the Arctic. This paradox determines the risks of implementing the planned “megaprojects” in the region, and is conditioned by the peculiarities of socio-economic development of the region. Identification of the factors of socio-economic development of the Murmansk region, which determine its uniqueness, will be the basis for making recommendations for sustainable development of the region, contributing to resolution of the existing contradictions. The article analyzes and systematizes the factors of the socio-economic development of the region, which determine the manifestation specifics of economic activities in the region. Analysis, synthesis, comparison and grouping were used as methods. As a result, the author’s classification of factors of socio-economic development was proposed, which can become the basis for developing a strategy for optimizing the economic activities in the region adequate to its conditions. At the same time, the optimization of economic activities will mean achievement of such proportions in the regional economy in terms of the intensity of their manifestation by economic entities of different forms of ownership, which will contribute to achievement of sustainable regional development goals by influencing the behavior of economic entities.
Studies on ecosystems of theArctic: Proceedings of the XXXVII Conference for Young Scientists at MMBI KSC RAS
Authors:   Murmansk  Marine Biological Institute Kola Science Center RAS. Apatity
Published: November 2020

This publication contains papers submitted by young scientists at MMBI KSC RAS and their colleagues at the Murmansk Arctic State University and Murmansk State Technical University. The papers are devoted to hydrological and hydrochemical processes, sedimentation processes, spread of man-caused radionuclides, species composition and distribution of benthic organisms, physiology of brown seaweed, and behavior of marine mammals.
GÖÇ MAĞDURU ÇOCUKLARIN COVİD-19 SALGINI SÜRECİNDEKİ ÖĞRENME DENEYİMLERİ
Authors: ÇELİK Serkan , KARDAŞ İŞLER Nergiz
Published: November 2020

Bu çalışmada göç mağduru Suriyeli ilkokul öğrencilerinin Covid-19 salgını sürecinde uzaktan eğitimdeki öğrenme süreçlerinde karşılaştıkları zorluklara ve fırsatlara ilişkin duygu ve düşüncelerini belirlemek amaçlanmıştır. Çalışma, nitel araştırma yaklaşımlarından durum çalışması deseni kullanılarak zorunlu göç nedeniyle Türkiye’ye gelmiş 36 4. sınıf öğrencisiyle yürütülmüştür. Bulgular katılımcıların görüşlerinin dört farklı tema altında yer aldığını göstermiştir. Bunlar (1) okuldan uzak kalma durumu, (2) evdeki eğitim etkinlikleri durumu, (3) dersler açısından zorlanılan durumlar, (4) dersler açısından hoşa giden durumlar”dır. Covid-19 salgını sürecinde uygulanmaya başlanan uzaktan eğitim uygulamaları, ülkemizde yaşayan göç mağduru öğrencilerin hem olumlu hem de olumsuz öğrenme deneyimleri elde etmelerine neden olmuştur. Uzaktan eğitime ilişkin ortaya koyulan bu geribildirimlerin hem uzaktan hem de yüz yüze eğitim süreçlerinin geliştirilmesi adına kullanılabilmesi ve daha nitelikli öğrenme ortamlarının oluşturulabilmesi sağlanabilir.
Emberölések utófelderítésének tapasztalatai Bács-Kiskun megyében
Authors: Bogdány Gyula
Published: November 2020

The author provides an overview of the strategies that led to successful recently reopened homicide cases in Bács-Kiskun County, Hungary.
On the Accuracy of the ALMA Flux Calibration in the Time Domain and across Spectral Windows
Authors: Francis Logan , Johnstone Doug , Herczeg Gregory , Hunter Todd R. , Harsono Daniel
Published: November 2020

A diverse array of science goals requires accurate flux calibration of observations with the Atacama Large Millimeter/submillimeter array (ALMA); however, this goal remains challenging due to the stochastic time-variability of the “grid” quasars ALMA uses for calibration. In this work, we use 343.5 GHz (Band 7) ALMA Atacama Compact Array observations of four bright and stable young stellar objects over seven epochs to independently assess the accuracy of the ALMA flux calibration and to refine the relative calibration across epochs. The use of these four extra calibrators allows us to achieve an unprecedented relative ALMA calibration accuracy of ∼3%. On the other hand, when the observatory calibrator catalog is not up to date, the Band 7 data calibrated by the ALMA pipeline may have a flux calibration poorer than the nominal 10%, which can be exacerbated by weather-related phase decorrelation when self-calibration of the science target is either not possible or not attempted. We also uncover a relative flux calibration uncertainty between spectral windows of 0.8%, implying that measuring spectral indices within a single ALMA band is likely highly uncertain. We thus recommend various methods for science goals requiring high flux accuracy and robust calibration, in particular, the observation of additional calibrators combined with a relative calibration strategy, and observation of solar system objects for high absolute accuracy.
Contribution of Dark Matter Annihilation to Gamma-Ray Burst Afterglows near Massive Galaxy Centers
Authors: Huang Bao-Quan , Liu Tong , Huang Feng , Lin Da-Bin , Zhang Bing
Published: November 2020

Gamma-ray bursts (GRBs) are believed to be powered by ultrarelativistic jets. If these jets encounter and accelerate excess electrons and positrons produced by particle dark matter (DM) annihilation, the observed electromagnetic radiation would be enhanced. In this paper, we study GRB afterglow emission with the presence of abundant DM under the weakly interacting massive particle annihilation conditions. We calculate the light curves and spectra of the GRB afterglows with different parameters, i.e., DM density, particle DM mass, annihilation channel, and electron density of the interstellar medium. We find that the effect of DM may become noticeable in the afterglow spectra if the circumburst has a low electron number density (

) and if the DM has a high number density (

). According to the standard galaxy DM density profile, GRB afterglows with DM contribution might occur at distances of several to tens of parsecs from the centers of massive galaxies.
Protokoll der Jahresversammlung der Schweizerischen Entomologischen Gesellschaft vom 6. und 7. März am Naturhistorischen Museum Basel
Authors: Neumann Marc
Published: November 2020

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"Flora of Russia" on iNaturalist: a dataset
Authors: Seregin Alexey , Bochkov Dmitriy , Shner Julia , Garin Eduard , Pospelov Igor , Prokhorov Vadim , Golyakov Pavel , Mayorov Sergey , Svirin Sergey , Khimin Alexander , Gorbunova Marina , Kashirina Ekaterina , Kuryakova Olga , Bolshakov Boris , Ebel Aleksandr , Khapugin Anatoliy , Mallaliev Maxim , Mirvoda Sergey , Lednev Sergey , Nesterkova Dina , Zelenova Nadezhda , Nesterova Svetlana , Zelenkova Viktoriya , Vinogradov Georgy , Biryukova Olga , Verkhozina Alla , Zyrianov Alexey , Gerasimov Sergey , Murtazaliev Ramazan , Basov Yurii , Marchenkova Kira , Vladimirov Dmitry , Safina Dina , Dudov Sergey , Degtyarev Nikolai , Tretyakova Diana , Chimitov Daba , Sklyar Evgenij , Kandaurova Alesya , Bogdanovich Svetlana , Dubynin Alexander , Chernyagina Olga , Lebedev Aleksandr , Knyazev Mikhail , Mitjushina Irina , Filippova Nina , Dudova Kseniia , Kuzmin Igor , Svetasheva Tatyana , Zakharov Vladimir , Travkin Vladimir , Magazov Yaroslav , Teploukhov Vladimir , Efremov Andrey , Deineko Olesya , Stepanov Viktor , Popov Eugene , Kuzmenckin Dmitry , Strus Tatiana , Zarubo Tatyana , Romanov Konstantin , Ebel Alexei , Tishin Denis , Arkhipov Vladimir , Korotkov Vladimir , Kutueva Svetlana , Gostev Vladimir , Krivosheev Mikhail , Gamova Natalia , Belova Veronica , Kosterin Oleg , Prokopenko Sergey , Sultanov Rinat , Kobuzeva Irina , Dorofeev Nikolay , Yakovlev Alexander , Danilevsky Yuriy , Zolotukhina Irina , Yumagulov Damir , Glazunov Valerii , Bakutov Vladimir , Danilin Andrey , Pavlov Igor , Pushay Elena , Tikhonova Elena , Samodurov Konstantin , Epikhin Dmitrii , Silaeva Tatyana , Pyak Andrei , Fedorova Yulia , Samarin Evgeniy , Shilov Denis , Borodulina Valentina , Kropocheva Ekaterina , Kosenkov Gennadiy , Bury Uladzimir , Mitroshenkova Anna , Karpenko Tatiana , Osmanov Ruslan , Kozlova Maria , Gavrilova Tatiana , Senator Stepan , Khomutovskiy Maxim , Borovichev Eugene , Filippov Ilya , Ponomarenko Serguei , Shumikhina Elena , Lyskov Dmitry , Belyakov Evgeny , Kozhin Mikhail , Poryadin Leonid , Leostrin Artem
Published: November 2020

The "Flora of Russia" project on iNaturalist brought together professional scientists and amateur naturalists from all over the country. Over 10,000 people were involved in the data collection.

Within 20 months, the participants accumulated 750,143 photo observations of 6,857 species of the Russian flora. This constitutes the largest dataset of open spatial data on the country’s biodiversity and a leading source of data on the current state of the national flora. About 87% of all project data, i.e. 652,285 observations, are available under free licences (CC0, CC-BY, CC-BY-NC) and can be freely used in scientific, educational and environmental activities.
Phylogeny and biogeography of Sumatra´s cloud forest lizards of the genus Dendragama and status of Acanthosaura schneideri
Authors: Shaney Kyle J. , Harvey Michael B. , Hamidy Amir , Kurniawan Nia , Smith Eric N.
Published: November 2020

Lizards of the genusDendragamaare endemic to the highland cloud forests of Sumatra’s Barisan Mountain Range in western Indonesia, and recent studies have uncovered widespread diversity within the genus. Here, a suite of morphological characters and mitochondrial DNA are used to compare three geographically isolated populations ofD. boulengerifrom (1) Mount Kerinci in Jambi province, (2) Mount Marapi of west Sumatra, and (3) the Karo Highlands of north Sumatra. Additional phylogeographic analyses with two recently described sister species,D. australisandD. dioidemawere conducted. Five genetically distinct clades ofDendragama, all distributed allopatrically of one another were identified and some are suspected to inhabit small distributions. Morphological and genetic data confirm the Karo Highlands populationD. schneideri(previouslyAcanthosaura schneideriAhl, 1926) should be revalidated from the synonymy ofD. boulengeri.Dendragama schneideriis endemic to montane forests of the Karo Highlands surrounding Lake Toba in Sumatra Utara province. Pairwise genetic distances of 6–11% separateD. schneiderifrom congeners. Two distinct clades ofD. boulengerifrom Mount Kerinci and Mount Marapi were identified, which are 5.0% genetically distant from one another. Using morphological characters, we provide the first key for distinguishing between species ofDendragama. Based on biogeographic patterns and levels of genetic variation it is suspected that at least 18 other isolated cloud forest locations may hold new species or divergent populations ofDendragamabut lack survey work. Collectively, these comparisons among populations of montane lizards further elucidate the complex biogeographic history of Sumatra’s montane forest species and the first phylogeny of the genusDendragama.
« Jeux d’échelle » : de l’intérêt d’une analyse multiscalaire pour mesurer l’impact de la Droite radicale sur le Parti républicain (2010-2019)
Authors: Trouillet Agnès
Published: November 2020

Cet article met en lumière les groupes conservateurs œuvrant au sein et en dehors du Parti républicain, et leurs stratégies pour tirer le programme du parti toujours plus vers la droite. La nébuleuse Tea Party est emblématique des myriades d’organisations opérant à l’échelle nationale, étatique et locale pour influencer la législation. Sa stratégie efficace de noyautage de l’appareil partisan est directement inspirée de la Droite religieuse, notamment avec la focalisation sur les primaires et les échelons local et micro-local. Produit d’une recherche sur le Tea Party en tant que mouvement social et politique, cette analyse mobilise les théories de l’opportunisme structurel et de l’organisation, et s’appuie sur une étude de terrain menée auprès de groupes locaux en Pennsylvanie et dans le Massachusetts de 2012 à 2017 afin d’appréhender la dimension grassroots du mouvement. Des exemples concrets de militants illustrent la maîtrise des rouages électoraux par les acteurs conservateurs.
Les trous noirs de la monnaie pleine
Authors: Le Maux Laurent
Published: November 2020

Le présent article examine la proposition en faveur du 100% money ou de la monnaie pleine qui rend obligatoire la couverture intégrale des dépôts à vue par de la monnaie émise par la banque centrale et qui vise ainsi à interdire aux banques commerciales de procéder à une « création » de monnaie. Il souligne cependant que la réflexion autour de la transférabilité des dépôts à terme ou comptes d’épargne en dépôts à vue reste insuffisante alors même qu’une telle transférabilité réamorce le processus de « création » de monnaie, processus que la proposition de la monnaie pleine ou du 100% money est censée supprimer. Il en déduit alors une série de paradoxes.
La pension de réversion au régime général au fil des générations
Authors: Di Porto Alessandra , Ghernaout Nassima
Published: November 2020

Au régime général, l’attribution d’une retraite de réversion est soumise à une condition d’âge, de mariage et de ressources. Selon le montant des ressources du potentiel bénéficiaire, la pension peut être attribuée entière, écrêtée, ou ne pas être attribuée du tout. Depuis la création du dispositif en 1945, la très grande majorité des bénéficiaires de pensions de réversion (93 %) sont des femmes. Ainsi, une plus forte participation de ces dernières à la population active, couplée à une augmentation de leurs ressources personnelles, pourrait donner lieu à une réduction de la part estimée de bénéficiaires à long terme (parmi les personnes du même âge qui sont encore en vie). Dans ce contexte, cette étude a pour objectif d’analyser l’effet de l’amélioration des carrières féminines sur le recours à la réversion au régime général en neutralisant l’effet des facteurs démographiques ayant une incidence sur la réversion (taux de mariage et espérance de vie). Grâce au modèle de microsimulation dynamique développé par la Caisse nationale d’assurance vieillesse (Cnav), différents scénarios de projection ont été explorés afin de faire varier les hypothèses sous-jacentes à ces facteurs démographiques et d’isoler le potentiel impact de l’amélioration des carrières féminines. D’après les résultats, il semblerait cependant que pour les générations prises en compte dans l’étude, la diminution de la part des bénéficiaires de la réversion à chaque âge en projection ne soit pas due à l’amélioration des carrières féminines, mais au seul effet des changements démographiques prévus d’ici 2070.
Coordination of a sustainable reverse supply chain with revenue sharing contract
Authors: Dey Sushil Kumar , Giri Bibhas C.
Published: November 2020

In this article, a three-echelon closed-loop supply chain is considered under sustainability consideration through remanufacturing of waste materials. Depending upon quality, the collector collects the used products and forwards to the manufacturer for remanufacturing. The collector offers a reward or incentive to consumers to influence them to return the used items. The shortfall amount of collected used items, if any, is meet up by the supplier by supplying fresh raw materials. In three separate cases viz centralized, decentralized and revenue-sharing contract, optimal incentives for end-customers and optimal profits of supply chain members are determined. The revenue-sharing contract is implemented in two different settings - one including the supplier and the other one excluding the supplier. The win-win outcome for the supply chain members is investigated and a specific range of the sharing parameter for win-win outcome is obtained. Optimal results are supported by numerical analysis, and sensitivity of the optimal results with respect to key parameters is analyzed.
Dynamic discrete-time portfolio selection for defined contribution pension funds with inflation risk
Authors: Yao Haixiang , Chen Ping , Zhang Miao , Li Xun
Published: November 2020

This paper investigates a multi-period asset allocation problem for a defined contribution (DC) pension fund facing stochastic inflation under the Markowitz mean-variance criterion. The stochastic inflation rate is described by a discrete-time version of the Ornstein-Uhlenbeck process. To the best of our knowledge, the literature along the line of dynamic portfolio selection under inflation is dominated by continuous-time models. This paper is the first work to investigate the problem in a discrete-time setting. Using the techniques of state variable transformation, matrix theory, and dynamic programming, we derive the analytical expressions for the efficient investment strategy and the efficient frontier. Moreover, our model's exceptional cases are discussed, indicating that our theoretical results are consistent with the existing literature. Finally, the results established are tested through empirical studies based on Australia's data, where there is a typical DC pension system. The impacts of inflation, investment horizon, estimation error, and superannuation guarantee rate on the efficient frontier are illustrated.
Editoriale – Il dovere de medico di informare il paziente: senza più limiti?
Authors: Fiori Angelo
Published: November 2020

Non disponibile.
First observation of partial neoteny in Salamandrina perspicillata (Savi, 1821)
Authors: Filippi Ernesto , Gargini Valeria , Brancaleoni Maura , Felici Piero
Published: November 2020

Different forms of neoteny were recorded in some Italian amphibian species: full (absolute or temporary) and partial. However, this physiological phenomenon was never observed in the Italian endemic Salamandrina perspicillata. The authors report the first record of partial neoteny in an individual of this species, a leucistic larva observed in a drinking trough in the Valle del Treja Regional Park (Latium - Central Italy).