bluuebunny/crossref_metadata_2025 huggingface dataset:
O Texto Artístico como Meio de Aprimorar o Comportamento Individual e Social
Authors: Sobrinho Asdrúbal Borges Formiga
Published: April 2021

Adotando o conceito de texto como um conjunto organizado de signos que compõem a estrutura da mensagem (Lotman, 1978, p. 32), aplicado a qualquer produção artística, independentemente da natureza do código - verbal, visual, sonoro ou misto; e caracterizado por significados ilimitados, gostaríamos de caracterizar o leitor como receptor de todos esses textos artísticos, em diferentes contextos. A comunicação é feita de linguagem, de signos, e pode mudar a vida do leitor. Se isso realmente acontece devido à influência da linguagem, o que pode ser feito, pelos operadores da linguagem, para dizer coisas diferentes ao leitor e, possivelmente, mudar sua vida?
AN ANALYSIS OF THE ENERGY RESOURCES IN THE REPUBLIC OF MOLDOVA
Authors: STAVARACHE Gheorghe , NOVAC Valerian , CIORTAN Sorin , RUSU Eugen
Published: April 2021

The paper presents an analysis of renewable energy available in the Republic of Moldova. Because of geographic localization, there is no possibility to use wave energy so, the wind, solar, rivers and biomass sources are taken into account. After a short presentation of benefits and drawbacks of each energy source, an estimation for the Republic of Moldova is performed. The analysis results pointed out that the wind energy is the most used type and there is a lot of information about the wind speed values over the whole country area.
Forms of participation and teacher voice. Self-appraisal in Academy schools.
Authors: Brown Martin
Published: April 2021

Since 2010, privatisation of English state funded schools has accelerated. This is an educational policy that continues to shift accountability for effective teaching away from central government and local authorities towards schools and individual teachers. New models of network governance continue to exacerbate old tensions between ideas of professional accountability and contractual accountability. In this context quality assurance mechanisms have displaced opportunities for personal development and job satisfaction.The phenomenon of participation has been conceptualised here as teacher voice and as the means of reducing professional conflicts in secondary schools. This discussion draws on empirical evidence from teacher interviews and teacher self-appraisal submissions in order to answer the question, ‘What are teachers’ experiences of participation in their performance appraisal in English Academy schools?’, where ‘evaluation has become an embedded practice giving less room to local actors’ (Kauko and Salokangas, 2015). Voice is described with reference to reflective writing for self-appraisal. Institutional forgetting is described in relation to reductions in professional dialogue and professional autonomy. Keywordsprivatization, self-appraisal, participation, voice, active, passive, compliance, non-compliance, forgetting, knowledge, stratification, separation, compartmentalization
Pengaruh frekuensi paparan stresor cahaya saat kebuntingan terhadap jumlah dendrit dan ekspreis mTorc1 otak mencit (Mus musculus) baru lahir
Authors: Wijayanti Dwi Puji , Joewono Hermanto Tri , Widjiati Widjiati
Published: April 2021

Latar Belakang : Pada stres prenatal akan memicu peningkatan kadar CRH dan kortisol maternal.  ini akan meningkatkan jumlah CRH dan kortisol pada janin dan menurunkan ekspresi 11β-HSD2 di plasenta. Meningkatnya kadar CRH akan meningkatkan aktifitas glukokortikoid yang akan menurunkan Growth Factors,juga akan mempengaruhi ekspresimTORC1 sebagai mekanisme pertahanan sel.  GH, dan IGF-1 sedangkan menurunnya ekspresi 11β-HSD2 pada akhirnya akan menyebabkan perkembangan organ yang tak seimbang. Tujuan.Untuk mengetahui pengaruh frekuensi paparan stresor cahaya selama kebuntingan terhadap jumlah dendrit dan ekspresi mTORC1 anak mencit (Mus musculus).

Metode : Penelitian ini merupakan penelitian eksperimen dengan post test only group design. Jumlah dendrit diukur dengan Golgy Cox hasil rerata jumlah dendrit dalam 5x lapangan pandang. Ekspresi mTORC1diukur dengan indeks skala Remelle . Analisis data menggunakan uji Post Hoc dengan tingkat kemaknaan 95% (0,05).

Hasil : Hasil penelitian menunjukkan adanya perbedaan rerata jumlahdendrit yang signifikan antara kelompok kontrol (22.30) dan kelompok perlakuan 2 (7.55 ) lebih rendah. Hal yang serupa juga didapatkan padaekspresimTORC1. Terdapat perbedaan yang berarti padaekspresimTORC1. kelompok kontrol (1.14) dan kelompok perlakuan 2 (4.28) lebih tinggi. Selain itu, didapatkan juga hubungan (p < 0,05) antara jumlah sel dendrit danekspresimTORC1 otak anak mencit baru lahir dengan menggunakan korelasiPearson. Hasil uji korelasi Pearson didapatkan nilai signifikansi 0,068 dengan p < 0,05 dan nilai korelasi 0,338 dengan arah korelasi negative

Kesimpulan : Jumlah dendrit pada kelompok perlakuan1 dan 2 lebih rendah dibandingkan kelompok kontrol, sedangkan ekspresi mTORC1 pada kelompok perlakuan1 dan 2 lebih tinggi dibandingkan kelompok kontrol.
Pendampingan waste management Koperasi Melati Jaya dalam mendukung kota berkelanjutan
Authors:   Jurusan Teknik Mesin, Universitas Lampung, Bandar Lampung, Prayitno Hadi , Lestari Rahayu ,   Jurusan Hubungan Internasional, Universitas Lampung, Bandar Lampung, Hardilla Dini ,   Jurusan Teknik Arsitektur, Universitas Lampung, Bandar Lampung, Hesti Hesti ,   Jurusan Teknik Geofisika, Universitas Lampung, Bandar Lampung, Eka Salsabillah Angelia ,   Jurusan Teknik Mesin, Universitas Lampung, Bandar Lampung, Ratu Alam Deno ,   Jurusan Teknik Mesin, Universitas Lampung, Bandar Lampung, Khairudin Rizal ,   Jurusan Teknik Mesin, Universitas Lampung, Bandar Lampung
Published: April 2021

Purpose: This study aimed to increase the knowledge and ability of Koperasi Melati Jaya's waste management. Waste management capabilities can reduce the volume of waste to the landfill. Method: The program began the dissemination of commitment to waste management to contribute to SDGs achievement, assistance in manufacturing verticulture, hydroponics, eco-bricks, garden architects, and utilizing waste. Evaluation was carried out to improve the waste management program. Results: Through this program, more than 70% of the cooperative's members manage waste using the 7R principle. Knowledge, attitudes, and abilities in recycling waste into hydroponics, verticulture, and eco-bricks have increased. The conversion of waste into valuable products indirectly contributes to reducing the volume of waste from TPA Bakung. The income of cooperative members and the fact that fresh vegetables in the city of Bandar Lampung have increased. Conclusions: The consistency program can bring Sukamenanti Baru close to zero waste so that it becomes a livable village. Indirectly, it supports the achievement of SDGs in Bandar Lampung City. Keywords: Garbage, Women, Cooperatives, SDGs
Dwie «Zemsty» Bohdana Korzeniewskiego
Authors: Makaruk Maria
Published: April 2021

Artykuł przypomina pracę Bohdana Korzeniewskiego nad Zemstą Aleksandra Fredry w Teatrze Polskim w Warszawie na przełomie 1951 i 1952 roku. Kiedy reżyser objął dyrekcję Teatru Narodowego, próby przerwano. Autorka dokumentuje ślady po niezrealizowanym przedstawieniu, by skonfrontować je z Zemstą, którą Korzeniewski wystawił w Teatrze Narodowym w 1953. Celem nie jest rekonstrukcja niewystawionej premiery, lecz zadanie pytań o tę drugą Zemstę i podejście artysty do komedii Fredry. Perspektywa poetyki kulturowej (kulturowej historii teatru) przybliża strategie i gry Korzeniewskiego i – szerzej – praktyki funkcjonowania artystów w polskim teatrze w latach stalinizmu. Uruchomienie historii potencjalnej pozwala spojrzeć na biografię Korzeniewskiego w sposób zniuansowany.
ІМУНІТЕТ ЕКСПЕРТА У КРИМІНАЛЬНОМУ СУДОЧИНСТВІ ПІД ЧАС ДОПИТУ В СУДІ
Authors: Циганюк Ю. В.
Published: April 2021

Висвітлено сутність імунітету експерта у кримінальному судочинстві під час допиту в суді. Проаналізовано предмет допиту експерта у суді, що, зокрема,  стосується порядку проведення експертизи і доповнення змісту складеного раніше висновку експерта. Наведено запитання, які можуть бути поставлені експерту під час допиту в суді. Ґрунтуючись на вимогах ст. 356 КПК України щодо питань, які можуть бути поставлені під час допиту, та зважаючи на зміни до ст. 65 КПК України, з’ясовано, що на експерта поширюється імунітет від давання показань, пов’язаних із деталізацією висновку експерта доступною (популярною) мовою – доведенням до відома особи, яка ставить запитання, змісту висновків таким чином, щоб саме цій особі передати суть своїх наукових, технічних або інших спеціальних знань. Наголошено, що імунітет експерта у кримінальному судочинстві під час допиту в суді становить сукупність норм, які передбачають реалізацію експертом права відмовитися від давання показань у передбачених кримінальним процесуальним законодавством випадках. При цьому визначено, що імунітет експерта під час допиту в суді може реалізовуватися в порядку ст. 18 КПК України (як свобода від самовикриття, а також у праві не свідчити проти близьких родичів і членів сім’ї) і ч. 3 ст. 356 КПК України (щодо визначеного переліку питань для допиту експерта) та в перспективі, коли наберуть чинності  зміни до ч. 2 ст. 65 КПК України (щодо права не роз’яснювати висновок експерта).Ключові слова: допит; кримінальне судочинство; імунітет експерта; предмет допиту експерта.
Forbidding $K_{2,t}$ Traces in Triple Systems
Authors: Luo Ruth , Spiro Sam
Published: April 2021

Let $H$ and $F$ be hypergraphs. We say $H$ {\em contains $F$ as a trace} if there exists some set $S \subseteq V(H)$ such that $H|_S:=\{E\cap S: E \in E(H)\}$ contains a subhypergraph isomorphic to $F$. In this paper we give an upper bound on the number of edges in a $3$-uniform hypergraph that does not contain $K_{2,t}$ as a trace when $t$ is large. In particular, we show that

$$\lim_{t\to \infty}\lim_{n\to \infty} \frac{\mathrm{ex}(n, \mathrm{Tr}_3(K_{2,t}))}{t^{3/2}n^{3/2}} = \frac{1}{6}.$$

Moreover, we show $\frac{1}{2} n^{3/2} + o(n^{3/2}) \leqslant \mathrm{ex}(n, \mathrm{Tr}_3(C_4)) \leqslant \frac{5}{6} n^{3/2} + o(n^{3/2})$.
Prolific Permutations
Authors: Albert Michael , Tannock Murray
Published: April 2021

The concept of prolificity was previously introduced by the authors in the context of compositions of integers. We give a general interpretation of prolificity that applies across a range of relational structures defined in terms of counting embeddings. We then proceed to classify prolificity in permutation classes with bases consisting of permutations of length 2, or 3; completely classifying all such classes except ${\rm Av}(321)$. We then show a number of interesting properties that arise when studying prolificity in ${\rm Av}(321)$, concluding by showing that the class of permutations that are not prolific for any increasing permutation in ${\rm Av}(321)$ form a polynomial subclass.
Foreword by Guest Editor COL Paul F. Evangelista, PhD
Authors: Evangelista Paul
Published: April 2021

FOREWORD
This issue of ISER contains timely and relevant research and analysis related to the global pandemic. It is unsurprising that the industrial and systems engineering community, especially professionals affiliated with SISE and ISER, rose to the challenge and applied their expertise to improve understanding and support decisions related to a wide variety of COVID-19 related problems. Here is a brief glimpse of the contributions in this issue:
Evangelista, Clark, Dabkowski, and Kloo detail a wide variety of analytical and modeling methods used to provide situational awareness and modeling in support of the unstructured decisions faced by the United States Military Academy. Krishnan and Maru use simulation and machine learning methods to explore the sensitivities of various supply chains affected by COVID-19. Khaswaneh and Nagarur examined health supply chains during demand surges and offer linear optimization methods designed to minimize costs across the full spectrum of supply chain operations. Desai and Ball provide an invaluable review of literature that examines stress created by workplace assigned mobile communication devices, a timely examination given the growth of remote work during the global pandemic. Choi and Staley discuss the delicate relationships between the construction industry and national emergencies, primarily by exploring the literature and research related to the interconnections between COVID-19 and the construction industry. Lastly, Santos discusses a linear optimization approach focused on scheduling and assignment of a workforce when variable demand and availability constraints apply.
The breadth and impact of industrial and systems engineering applied to problems related to COVID-19, a global pandemic without comparison, reinforces the reach and world-changing significance of our discipline. This issue provides a small sample from the vast number of problems and decisions resolved with ideas and methods that we practice and research as industrial and systems engineers.

COL Paul F. Evangelista
Chief Data Officer
United States Military Academy
Taylor Hall, 5th Floor
845-857-8204 (cell)
paul.evangelista@westpoint.edu
O BNDES na política externa de Lula
Authors: Morais Marcelo Maurício
Published: April 2021

As modificações institucionais estatais brasileiras sempre serviram como instrumento de manutenção da estrutura social nacional que por sua vez é dependente do capital internacional. Essa condição decorre de uma determinada dinâmica e das características estruturais da economia, da sociedade e do Estado brasileiro. Por isso mesmo o projeto desenvolvimentista concentra-se em três perspectivas. A expansão do mercado interno, políticas de distribuição de renda como ferramenta para inclusão e obras de infraestrutura. Logo, lança mão da abertura do mercado internacional graças a uma política externa promovida por meio do Estado, tendo o BNDES como seu principal financiador.
Evolução da Revista Campo Jurídico
Authors: Pacheco Cristiane Gabriel
Published: April 2021

A CAMPO JURÍDICO: Revista de Direito Agroambiental e Teoria do Direito é um periódico peer-reviewed, é uma iniciativa do Curso de Direito da Faculdade São Francisco de Barreiras (FASB), sendo mantida pelo Instituto Avançado de Ensino Superior de Barreiras (IAESB), lançada em 2013 (migrada para o formato online em 2015), e que representa uma expressiva conquista que acarreta importantes resultados para os programas de Pós-Graduação brasileiros, e fundamentalmente para a área do Direito e Direito Agroambiental.
Sociedade dos Direitos Fundamentais: desenvolvimento sustentável protegido por instrumentos extrafiscais
Authors: Fiorin Paulo Sérgio
Published: April 2021

O reconhecimento do meio ambiente como direito fundamental está consagrado no direito brasileiro e em vários países que participaram dos eventos internacionais para proteção do meio ambiente. Com o objetivo de demonstrar a força normativa das normas ambientais, por meio de pesquisa descritiva e exploratória, com levantamento bibliográfico e documental, verificou-se que a população tem instrumentos eficazes para proteção do meio ambiente; que sua participação é importante para tal fim; que o meio ambiente pode ser protegido com o uso de instrumentos fiscais tributários e que as normas ambientais tributárias têm força cogente perante a sociedade visto se resguardar de preceitos constitucionais como o estabelecimento de competência, diretrizes, objetivos visando a proteção de direitos fundamentais.
Desafios do Direito na Era da Internet: uma breve análise sobre os crimes cibernéticos
Authors: Marra Fabiane Barbosa
Published: April 2021

As transformações propiciadas pelos avanços tecnológicos, especialmente pelo aperfeiçoamento da Rede Mundial de Computadores, inovaram e criaram maneiras de se comunicar, informar, negociar, pesquisar, trabalhar e, inclusive, praticar crimes. Nesse cenário, os indivíduos passaram a compartilhar experiências, fatos, notícias, viagens e dados em uma questão de segundos, muito embora se encontrassem em localidades diversas. Além disso, a Internet também se tornou um espaço para a ocorrência de delitos como furtos, estelionatos, racismo, pedofilia etc. No presente artigo, o que se busca é o estudo acerca do desenvolvimento da sociedade sob o viés tecnológico e emparelhado com o Direito, mormente quanto às disposições penais materiais e processuais aplicáveis ou não em casos de crimes praticados atrás das telas dos aparelhos informáticos. Frisa-se que o método a ser utilizado será o crítico-normativo, a fim de que haja maior efetividade das normas jurídicas vigentes.
SOCIAL STORY TELLING AND CRITICAL REFLECTIONS ON DIFFERENCE
Authors:   Department of Communication, Denison University, Granville, Ohio, Russell Jim
Published: April 2021

This exposition investigates novel practices for showing social morals through narrating. Drawing from my encounters showing a high level undergrad Narrative Ethics workshop, I clarify how my understudies reacted to a narrating unit through which they inspected their qualities and narrating morals. I entwine perceptions from my educating with experiences assembled from my understudies' in-class conversations and composed reflections to show the instructive points, results, and difficulties experienced while drawing in this material. I center especially around submitting thoughts for urging understudies to (a) embrace cutoff points to their comprehending of others and (b) perceive how tuning in for, and communicating, contrast assumes a basic part in their own, social, and moral development.
Analysis of the implementation of the National Plan of Action to Combat IUU Fishing and additional measures to prevent, control and eliminate it Part 1
Authors: Belyaev Vladimir , Zgurovsky Konstantin
Published: April 2021

Series of articles includes a general description of the problem, an analysis of the Russian Federation's implementation of the National plan of Action to Prevent, Restrict and Eliminate Illegal, Unregulated and Unreported (IUU) fishing by the Russian fishing fleet in the Russian Maritime Exclusive Economic Zone and beyond zone of national jurisdiction of the Russian Federation.

Basing on our analysis we prepared proposals on strengthening fishing control measures, legal instruments to combat IUU fishing, including changes in legislation and adjustment of the Plan for the new term until 2025, improvement of the monitoring system for fishing activities, methods for assessing IUU fishing, improving the efficiency of fisheries management, market mechanisms to combat IUU fishing and voluntary control measures and creating an enabling environment for the prevention of IUU fishing.
Fishery and traditional fishing problems of Pacific salmon on Tatar strait coast (Khabarovsk region)
Authors: Mlynar Evgeniy , Khovansky Igor
Published: April 2021

The peculiarities of the fishing of Pacific salmon, especially pink salmon, on the coast of the Tatar Strait (Khabarovsk region) are considered. After the 2016 harvest generation, there has been a significant decline in approaches in 2018 and 2020. The problems of traditional fishing by aboriginal peoples have been analyzed. During observations of the fishery in 2016, factors influencing the efficiency of reproduction of pink salmon were noted, with significant restrictions on traditional fishing. Solutions related to the development of aquaculture, improving the organization of fisheries and granting preferences, and the development of public-private partnerships have been proposed.
FAO's current work to improve international legal instruments to combat IUU fishing
Authors: Bekyashev Kamil , Bekyashev Damir
Published: April 2021

The international legal aspects of FAO's work aimed at improving the means of combating IUU fishing are examined in the article. It is provided updated information on the progress made in this topic. The authors analyze the FAO’s voluntary documents which adopted in recent years aimed at preventing IUU fishing. In addition, the prospects for the development of new FAO documents in this area were identified. In conclusion, the question of whether the Russian Federation can implement the specified FAO documents on combating IUU fishing is considered, and appropriate recommendations have been developed.
Compound feed for industrial rearing of juveniles trepang Apostishopus japonicus (Selenka)
Authors: Kadnikova Irina , Aminina Natalya , Yakush Yevgeniy
Published: April 2021

Application of enzymatic hydrolysis of macrophytes in the technology of feed for juvenile sea cucumber was justified. A basic recipe for compound feed based on fermented marine vegetable raw materials has been developed. Biological tests in the department for the reproduction of sea cucumber on the basis of the Pacific branch of the FSBSI VNIRO (TINRO) (Primorsky region, Popova island) confirmed the effectiveness of the use of fermented algae in the composition of feed. The average daily weight gains of sea cucumber individual increases, and the feed ratio decreases in comparison with feeds based on natural marine plants.
Estimation of the time of ship maintenance by the terminal in the transport hub system
Authors: Berezenko Sergey , Penkovskaya Ksenia , Menshikov Vyacheslav
Published: April 2021

It is proposed to evaluate various options for the mooring of a vessel at the berth of a cargo terminal by integer time intervals, which, when using Erlang's formulas, generalized to the case of the Markov process, can be used to solve the problems of planning loading and unloading operations on the company's ships, and should be presented in the form of a vector, the size of which is determined by the number of possible states of the "ship – berth" system.

A method for assessing the time of servicing a loading and unloading operation by the terminal has been compiled, when observing a number of particulars corresponding to the usual histogram, and each value of the time interval corresponds to a certain bit of the histogram, a variant of evaluating the mathematical expectation of the time the terminal serves one loading and unloading operation.

It was found that using the least squares method, it is possible to identify the value of the variance of the time of the loading and unloading operation, which, in turn, can be used as a point estimate when compiling the confidence interval for the mathematical expectation of this interval.
Russia and Japan: scientific and technical cooperation in the field of fisheries
Authors: Kurmazov Aleksandr
Published: April 2021

Russia and Japan are the closest neighbors in the northwestern Pacific. They have common maritime borders and common marine resources. Limited contacts of scientists of the two countries in the field of fisheries began more than 100 years ago since the time of the Portsmouth Peace of 1907. Currently, Russian-Japanese scientific and technical cooperation in the field of fisheries is carried out under two intergovernmental agreements. Also, scientists from the two countries collaborate in a number of international fisheries organizations. Now the issues of preserving and studying the oceans are elevated to the rank of high state policy of Russia and Japan. This may be an additional impulse for cooperation between Russia and Japan in the field of fisheries.
Determination of the drag coefficient of trawls by the hydraulic-mathematical method
Authors: Gaydenok Nikolay
Published: April 2021

The paper considers the features of determining the determination of the force and coefficient of water resistance to the movement of trawls and other floating bodies by the hydraulic-mathematical method by inverting the body contour based on the law of conservation of energy in the form of a solution in the special case of the Dido problem and the multi-criteria problem of the cal-culus of variations or optimal control in the general case. The proposed algo-rithm makes it possible to clearly take into account a wide range of hydro-mechanical phenomena that determine this important indicator, which is neces-sary for the development of an optimal trawling strategy.
PSYCHOSOCIAL STRESS CONTAGION OF COVID-19: ISSUES AND INTERVENTION CHANNELS
Authors:   Assistant Professor, DEPT. OF SOCIOLOGY, THE UNIVERSITY OF BURDWAN, BURDWAN, DEY DR. SOURAV MADHUR
Published: April 2021

Along with its elevated contamination and fatality rates, the 2019 Corona Virus Disease (COVID-19) has caused worldwide psychosocial impact by causing mass hysteria, financial burden and economic losses. Mass fear of COVID-19, termed as “coronaphobia”, has generated a glut of psychiatric exposition across diverse strata of the society. So, this review has been set about to portray psychosocial impact of COVID-19. Disease itself conglomerated by mandatory quarantine to counter COVID-19 applied by countrywide lockdowns can generate acute panic, angst, obsessive behaviors, stock piling, paranoia and depression, and post-traumatic stress disorder in due course. These have been stirred up by an “infodemic” spread via various platforms of social media. Outbreak of racism, stigmatization, and xenophobia against particular communities are also being extensively reported. Nonetheless, frontline healthcare workers are at elevated risk of acquiring the disease as well as experiencing detrimental psychological outcomes in shape of exhaustion, worry, trepidation of transmitting infection, augmented substance-dependence and PTSD. The present article attempts to investigate these areas of contagion and suggest intervention dynamics to address the issue and therefore observes that psychosocial crisis prevention and intervention models should be urgently devised by the government, health care personnel and other stakeholders. Appropriate application of internet services, technology and social media to control both pandemic and ‘infodemic’ require to be initiated. Psychosocial alertness by setting up mental organizations particular for future pandemics is indeed crucial.
IMPACT OF COVID-19 PANDEMIC ON STUDENTS’ LIVELINESS AND ACADEMIC PROGRESS: AN E-SURVEY BASED ANALYSIS IN INDIA
Authors:   Assistant Professor, HIJLI COLLEGE,  P.O-HIJLI CO-OPERATIVE, KHARAGPUR,  DISTRICT- PASCHIM MEDINIPUR,  PIN- 721306 WESTBENGAL, PAIRA KANCHAN
Published: April 2021

COVID-19 infectious disease is now considered as the first major climacteric invasion on humankind of the twenty-first century since the ‘Spanish flu’ of the twentieth. The virus has not only alarmed the mental and physical health of humankind, but its direct impact has severely damaged the economy of maximum nations of the world, and India is no exception to that. Education also was not left out either from the impact. In India, educational institutions had to shut down to break the chain of virus transmission. Instead of offline, the digital mode of classes for colleges and universities has been organized by the Institutional Authorities by getting the direction from University Grants Commission (UGC) of India. However, the regional imbalances and inequalities in families' economic conditions hinder the successful implementation of that. As a result, the students having a standard level of awareness about the COVID-19 disease are affected by its various adverse impacts produced directly or indirectly. Anxiety, negative thoughts, boredom, and future academic uncertainty are engulfing them. This paper describes the students' awareness level about COVID-19. It focuses on the pandemic’s impact on the students' academic swing and mental health and prescribes the possible ways to assuage the impact of the pandemic on students.
Physicochemical properties of ternary Fe-Si-Nb and Fe-Al-Nb metallic systems
Authors:   Institute of Metallurgy of Ural Division of Russian Academy of Science, Zhuchkov Vladimir I. , Zayakin Oleg V. ,   Institute of Metallurgy of Ural Division of Russian Academy of Science, Mikhailova Lyudmila Yu. ,   Institute of Metallurgy of Ural Division of Russian Academy of Science
Published: April 2021

The Russian Federation has a sufficient number of promising deposits of niobium raw materials which can satisfy the niobium and tantalum demands of Russian metallurgical enterprises for many decades. Ferroalloy technologists are faced with the difficult tasks of developing from various types of ore raw materials not only effective processes for its processing but also new acceptable rational compositions of niobium-containing ferroalloys. The chemical composition of niobium ferroalloy should, on the one hand, correspond to the product obtained by benefication (concentrate) and, on the other hand, satisfy the requirements of steelmakers for ferroalloys intended for microalloying niobium steel. To develop rational compositions of new niobium-containing ferroalloys in this work the physicochemical characteristics (which include crystallization temperature and density) of alloys containing 10-50% Nb, 10-40% Si, and 5-30% Al were studied. Two-component Fe-Nb metal alloys have a rational crystallization onset temperature (<1400 °С) only when the niobium content is not more than 10%. To achieve rational crystallization onset temperatures it is necessary to use complex alloys with silicon and aluminum. Studies have shown that a decrease in the crystallization onset temperature of complex niobium alloys occurs when the niobium content decreases with an increase in the concentration of silicon or aluminum. Three-component alloys Fe-Si-Nb and Fe-Al-Nb with a content of 15-20% Nb, 32-40 Si% or 12-30% Al belong to the category of low-melting ferroalloys. To achieve rational density values light metals such as silicon or aluminum must be introduced into a two-component system. The studied three-component alloys with a content of 25-40% Si or 15-30% Al have rational density values both from the point of view of their production and application to the processing of steel melt. The best physicochemical characteristics providing high service properties are possessed by complex niobium (15-20% Nb) FeNbSi alloys with 32-40% Si and FeNbAl with 15-30% Al which are recommended for widespread use in ladle microalloying of steels.
Fungicidal activity of new 5-arylazo-7-nitro-8-hydroxyquinolines
Authors:   Tula State Lev Tolstoy Pedagogical University, Ustinov Ilya I. , Shakhkeldyan Irina V. ,   Tula State Lev Tolstoy Pedagogical University, Atroshchenko Yury M. ,   Tula State Lev Tolstoy Pedagogical University, Glazunova Anastasia V. ,   State University of Russia. A.N. Kosygin (Technology. Design. Art), Pescov Georgy V. ,   State University of Russia. A.N. Kosygin (Technology. Design. Art), Kobrakov Konstantin I. ,   State University of Russia. A.N. Kosygin (Technology. Design. Art)
Published: April 2021

Currently, agricultural production is impossible without the use of chemical plant protection products, so the search for new effective fungicides is an important and urgent task. A significant part of the systemic fungicides and antimycotics used today are azole derivatives. Research conducted at the Department of Chemistry is devoted to the analysis of the fungicidal and biological activity of substances of various classes of organic compounds, including derivatives of azoles. Previously published data on the fungicidal activity of 2-methyl-5-nitrobenzoxazole and its derivatives showed that 2-methyl-5-nitrobenzoxazole shows the highest fungicidal activity for all types of fungal cultures used in the study. The second nitro group introduced into the 2-methyl-5-nitrobenzoxazole molecule reduces fungitoxicity by 1.5-2 times. Replacing the methyl group with phenyl significantly reduces the fungicidal activity. In continuation of these studies, tests of 5-(4'-chlorophenylazo)-7-nitro-8-hydroxyquinoline, 5-(3',5'-dimethoxyphenylazo)-7-nitro-8-hydroxyquinoline and 5-(3'-methyl-4'-nitrophenylazo)-7-nitro-8-hydroxyqui-noline with respect to V. inaequalis, the causative agent of apple scab, R. solani, the causative agent of rhi-zoctonia, F. oxysporum, F. moniliforme, causative agents of cereal crops, B. sorokiniana – causative agent of root rot and S. sclerotiorum – causative agent of white rot. The radial growth of mycelium was determined according to the method developed by NIITEKHIM, according to which the fungal cultures were sown in nutrient media with the addition of the studied substan-ces. In parallel, a control experiment was conducted in the aquatic environment. The growth of mycelia was controlled by measurements on days 3, 6 and 9. The percentage of inhibition of fungal growth was calculated using the Abbott formula. Analysis of the experimental data demonstrates a higher fungicidal activity of 5-(3',5'-dimethoxy-phenylazo)-7-nitro-8-hydroxyquinoline compared with other azoquinolines for all types of fungal cultures used in the study.
Oxidative photo-catalytic destruction of eosine with the application of iron-contalning metal-ceramic composites with additive complex-forming reagents
Authors:   National Research Tomsk State University, Damzina Anna А. , Skvortsova Lidia N. ,   National Research Tomsk State University, Bolgaru Konstantin A. ,   Tomsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences
Published: April 2021

Iron-containing metal-ceramic composites based on nitrogen and sialon nitrides, obtained by the method of self-propagated synthesis were studied in the process of photocatalytic oxidative destruction of eosin. The phase composition of the samples was established by the X-ray diffraction method. It was shown that, along with the main phases, the ceramic matrix of materials contains the phases of semiconductors: (SiC, TiN). The indicator method of Hammet and Tanabe assessed the surface acid-base centers of the composites. It was established that a large sorption of the dye is characteristic of samples based on silicon nitride and sialon and is associated with the participation of active Brensted acid sites. The photocatalytic activity of iron-containing composites was studied in the presence of H2O2 (photo-Fenton system), H2O2 and EDTA (peroxide-ferriccomplexon system), H2O2 and tartaric acid (peroxide-ferritartrate system). It was shown that the degree of oxidative destruction of eosin is significantly higher with the participation of Fe(II, III) complexes with EDTA and tartaric acid, than Fe(II, III) aquacomplexes in the photo-Feton system. The high activity of composites containing the semiconductor phase of titanium nitride (TiN) is due to the combination of homogeneous and heterogeneous catalysis with the participation of the ceramic matrix. The introduction of complexing agents shifts the optimal acidity (pH 2-4) for a homogeneous system of photo-Fenton with the participation of iron(II, III) aqua complexes in the weakly acidic region (pH 4-7) and leads to almost complete destruction of the dye in the peroxide-tartrate system.
The effect of the solvent nature on the quinoline derivatives physicochemical characteristics
Authors:   Samara National Research University, Shcherbakov Vladimir V. , Kurbatova Svetlana V. ,   Samara National Research University, Zemtsova Margarita N. ,   Samara State Technical University
Published: April 2021

The influence of the solvent nature on some physicochemical parameters of the quinoline derivatives molecules is investigated. It was noted that a variety of intermolecular interactions arising between the dissolved substance and the solvent and often accompanied by the phenomena of solvation, association, etc. leads to a variety of structural and energy changes in such systems and complicating their description. The most urgent problems of solutions include issues related to the solubility and bioavailability of biologically active compounds and drugs, the study of their ability to dissolve, the permeability of biological barriers, targeted delivery, etc., as well as the problems associated with the study of sorption of organic compounds from aqueous-organic eluents, for example, in liquid chromatography. Derivatives of quinoline (4-carboxy- and 4-aminoquinoline), known as potential drugs with various types of pharmacological action, were used as research objects. Using quantum chemical calculations, the dipole moment of the amino and carboxy derivatives of quinoline was determined, and the data obtained for vacuum and in solvents of various chemical nature were compared. A significant effect of solvent polarity on the dipole moment of quinoline derivatives dissolved in these solvents was found. The values of the solvation energy of quinoline derivatives in solvents of various chemical nature are calculated. It is shown that a change in the solvation energy is determined both by the structure of the molecules of the quinoline derivatives and by the polarity of the solvent. A nonlinear change in the energy of solvation with a change in the polarity of the solvent is established. A comparison is made of the values of the quinoline derivatives molecules polar surface area in solvents of various chemical nature. It was found that the polar surface area of the studied compounds changes slightly with a change in the nature of the solvent.
Comparative analysis of biochemical markers for rheumatic diseases of adults and children in normality and pathology
Authors:   Samara National Research University, Vlasov Mikhail Y. , Pisareva Elena V. ,   Samara National Research University, Golub Yulia V. ,   Samara National Research University, Purygin Pyotr P. ,   Samara State Medical University, Stadler Elena R. ,   Samara State Medical University
Published: April 2021

Collagen is an intercellular substance of connective tissue, it plays an important role in the physiological processes of the body. Collagen consists of three polypeptide chains twisted in a spiral and in order to stabilize this structure, hydroxyproline is needed, its hydroxyl groups are involved in the formation of hydrogen bonds between the chains of polypeptides. The peculiarity of collagen is that 14% of the amino acids it contains are hydroxyproline, an amino acid that is not contained in other proteins. In this regard, the content of hydroxyproline in blood serum was used to assess the metabolism of collagen in the body. We determined the content of hydroxyproline fractions in blood serum. Calcium, fibrinogen, erythrocyte settling rate and alkaline phosphatase level in children and adults with joint disease were also determined. The control group included healthy children and adults. The total hydroxyproline content in children with the disease was 9-11% lower than in healthy children. In adults with joint diseases, the total hydroxyproline content was 11% higher than in healthy patients. In children and adults with rheumatic diseases, the peptide-bound hydroxyproline content increased, while the protein-bound hydroxyproline content decreased in comparison with the control group control parameters. No significant changes in the content of calcium and fibrinogen were noted, but the level of alkaline phosphatase and the rate of erythrocyte sedimentation was increased, which is typical for people with inflammatory diseases.
Changes in the quality of kefir for baby food from different manufacturers during storage
Authors:   Kazan National Research Technological University, Shcherbakova Yulia V. , Ahmadullina Farida Yu. ,   Kazan National Research Technological University, Rastegaev Egor K. ,   Kazan National Research Technological University, Gunicheva Svetlana M. ,   Kazan National Research Technological University
Published: April 2021

In this article was stydied the influence of the shelf life of kefir for baby food on their quality, estimated by the titrated acidity and intensity of lipid peroxidation process. The last was determined by the change in the concentration of compounds reacting with thiobarbituric acid. Were researched Children's kefir of brands "Adventures of Jovi", "For kids", "Agusha", fat content of 2.5% and 3.2% manufacturers of JSC "lactis", JSC "Zelenodolsk milk processing combine" and LLC "Wimm bill Dann". For these samples of fermented milk products for baby food is characterized by different declared shelf life, equal to 6, 15, 9 and 15 days, respectively, which serves as indirect evidence of differences in the methods of their production. The control period of research took into account both the shelf life of the product, declared by the manufacturer, and the period of time a week after its end. This allows, in our opinion, both to assess the impact of the conditions of production of commodity products on its, and it is possible to assess the level of safety of the analyzed kefir in the declared shelf life and, thus, to identify the best brand. The results were compared with data on the integrated antioxidant activity of the studied fermented milk products. Their values were obtained earlier by coulometric titration with electrogenated bromine, which allows to cover the largest number of antioxidants present in the control products at the time of the research. As a result of the comparative analysis it is shown, that children's kefir, the brand " for kids” in the declared shelf life of the manufacturer, is characterized by a lower content of secondary products of lipid peroxidation, causing rancidity of kefirs, while its antioxidant activity is the highest among the studied samples of kefirs for baby food. The results suggest that the technology for producing baby kefir of this brand is optimal, providing high quality, which is very important for the growing up body.
Investigation of the features of phase formation in the joint aluminothermic reduction of ZrO2, Ta2O5, Nb2O5
Authors:   Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, Russkih Andrey S. , Agafonov Sergey N. ,   Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, Ponomarenko Artem A. ,   Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences
Published: April 2021

In this paper, we consider the advantage of using the metallothermic method for producing alloys, in contrast to traditional methods. Using the HSC Chemistry 6.1 software package, thermodynamic modeling was performed. The possibility of obtaining intermetallic compounds by the joint aluminothermic reduction of Zr, Ta, Nb oxides is shown. The alloy was obtained by aluminothermic reduction of aluminum, zirconium, tantalum and niobium oxides in a resistance furnace, followed by grinding and powder size 40-100 microns. An experimental study of the sequence of phase formation and the boundaries of their existence was investigated using differential thermal analysis (DTA). The experiment was carried out on a STA 449 F3 Jupiter (NETZSCH) synchronous thermal analysis instrument in an argon flow GOST 10157-79 (the volume fraction of argon is at least 99.993%), the flow rate of the gas used was 30 ml/min. X-ray phase analysis (XRD) of the products (after DTA) was carried out on an XRD 7000 diffractometer (Shimadzu). By the relative intensity of the lines of the various phases, their quantitative ratio was estimated. The diffraction patterns were decoded using literature data, as well as the JCPDS (International Center For Diffraction Data) and ASTM (American Society for Testing and Materials) databases. According to the obtained XRD data, in the sample at temperatures of 954.5 and 1309.1 ºС, respectively, the formation of a solid solution (Zr, Nb, Ta)Al2 occurs, which is isostructural to the intermetallic Al3Zr. In both cases, the concomitant ZrAl2 intermetallic compound is also formed. The performed study can serve as a scientific basis for the development of promising metallothermal technologies for the production of rare metal alloys.
Deskripsi Status Gizi Anak Usia 3 Sampai 5 Tahun Pada Masa Covid-19
Authors: Amirullah Aris , Andreas Putra Aris Try , Daud Al Kahar Aris Armeth
Published: April 2021

Pola makan merupakan suatu kegiatan dalam pengaturan jumlah dan jenis makanan dengan deskripsi informasi meliputi mempertahankan kesehatan, status nutrisi, mencegah atau membantu kesembuhan penyakit. Data di Sulawesi Utara untuk 2013 menunjukkan prevalensi status gizi BB/TB<-2SD tahun 2013 adalah 10%. Kabupaten bolaang mongondow timur berdasarkan data jumlah penderita gizi buruk setiap tahun mengalami penurunan. Pada tahun 2017 kasus gizi buruk di Boltim berjumlah 2 orang. Pada tahun 2018 kasus bertambah tiga orang, sedangkan 2019 turun menjadi satu orang. Biasanya penyakit ini menyerang anak-anak berumur 0-59 bulan. ada upaya perhatian pemerintah terkait dengan penanganan gizi buruk hingga angka peningkatan gizi balita. Metode penelitian yang digunakan adalah metode survey termaksud dalam penelitian Deskriptif. Penelitian ini di laksanakan di PAUD/TK Ekasari Buyat I.  Waktu penelitian bulan Februari Sampai Mei 2020. Populasi dan sampel dalam penelitian ini berjumlah 27 orang.Gambaran status Gizi anak gizi  anak usia 3 sampai 5 tahun pada masa covid di PAUD/TK Ekasari Buyat I Kabupaten Bolaang Mongondow Timur   adalah berada padabatas normal. Pengetahuan orang tua tentang gizi gizi  anak usia 3 sampai 5 tahun pada masa covid di PAUD/TK Ekasari Buyat I Kabupaten Bolaang Mongondow Timur  sebagian besar dalam keadaan baik.
CONSIDERING VARIANCES OF QUASI-RANDOM EFFECTS IN RELATIVE GPS POSITIONING PERFORMED DURING DAYTIME AND NIGHTTIME PERIODS – A NOVEL TWO-STAGE APPROACH
Authors: Anđić Darko
Published: April 2021

In this paper, a new two-stage approach, involving an integral treatement of all quasi-random effects limiting the accuracy of relative GPS positioning and the method of moments to obtain final variance components regarding the effects of short-term (“far-field”) multipath (factor b), joint action of long-term (“near-field”) multipath and receiver antenna phase center offset and variations (factor a1), as well as joint action of tropospheric and ionospheric refraction (factor a2), is presented. In the study, GPS data collected on five baselines were used. Variance components of the quasirandom effects were obtained for the three relative GPS coordinates (e, n and u) using individually monthly datsets including daytime- and those including nighttime-wise ambiguity-fixed baseline solutions. The related results show that statistically significant inequality exists when comparing corresponding variances obtained for daytime and nighttime periods. It turned out that the following standard deviation estimates intervals are present (by the coordinates e, n and u, respectively): (a) daytime period: 3.3–6.9, 4.6–9.0 and 9.1–20.3 mm (factor b); 1.5–4.7, 1.9–7.0 and 3.4–21.9 mm (factor 1a ); 0.0116– 0.3282, 0.0103–0.2365 and 0.1222–0.7818 mm/km (factor a2); (b) nighttime period: 3.2–4.9, 4.7–7.3 and 8.4–15.4 mm (factor b); 0.8–3.8, 2.1–5.0 and 3.1–15.8 mm (factor a1); 0.0118–0.2734, 0.0097–0.2289 and 0.0752–0.6315 mm/km (factor a2).
Prevalence and genetic characterization of Cryptosporidium in pre-weaned cattle in Urmia (Northwestern Iran)
Authors: Mahmoudi Mahmoud , Hazrati Tapeh Khosrow , Abasi Esmaeil , Sayyadi Hojjat , Aminpour Arash
Published: April 2021

Introduction: Cryptosporidiosis is a zoonotic disease causing digestive problems in pre-weaned calves. Considering the zoonosis of the parasite and its importance in veterinary medicine, we evaluated the prevalence and genotyping of Cryptosporidium spp. in diarrheic pre-weaned calves in the northwest of Iran.

Methodology: A total of 100 stool samples of the infant calves with diarrhea were collected from industrial and conventional livestock farms in Urmia City. All the samples were tested with acid-fast staining, ELISA, and PCR. Positive samples of the PCR method were sequenced to determine the Cryptosporidium species. The obtained results were compared for the mentioned methods based on statistical factors, sensitivity, specificity, positive and negative predictive values, as well as duration of the experiment and the costs of testing.

Results: The results of this study showed that the prevalence of Cryptosporidium spp. in diarrheic infant calves in Urmia city was 5%, and C. parvum species of Cryptosporidium was detected in all the sequenced samples. According to the findings of the current study, the most appropriate method for the detection of the parasite is the ELISA that has a higher sensitivity and predictive value than acid-fast staining method and should be used in veterinary laboratories.

Conclusions: In the current investigation, C. parvum was identified as the only infectious agent in the region and could be the main cause of human infection. More studies are needed to find the source of infection for establishing the control measures.