bluuebunny/crossref_metadata_2025 huggingface dataset:
O processo de empresarização e o discurso da universidade empreendedora: Uma análise da Universidade Federal de Pelotas (UFPel)
Authors: Franz Alice Hübner , Leite Elaine da Silveira , Rodrigues Marcio Silva
Published: November 2020

O presente artigo visa discutir a crescente influência que o modelo empresarial tem exercido sobre os humanos e sobre suas organizações, consequência de um processo denominado de empresarização do mundo. Para tanto, optou-se por lançar um olhar para a universidade, a partir da análise de um discurso em específico que, com a intensificação do neoliberalismo, tem sido fortemente disseminado: o discurso da universidade empreendedora. Assim, procurou-se problematizar de que modo o processo de empresarização tem influenciado a construção do discurso da universidade empreendedora na Universidade Federal de Pelotas (UFPel), a partir da realização de uma pesquisa qualitativa, de caráter descritivo e que usou como técnica o estudo de caso. Os resultados, decorrentes da análise das percepções dos gestores e das práticas evidenciadas na UFPel, sinalizam que o discurso da universidade empreendedora se funda em diferentes práticas discursivas que fazem constante referência ao saber-poder da empresa. Tais práticas, em maior ou menor medida, reforçam a necessidade de consolidar uma universidade flexível e eficiente (em termos empresariais), cuja atuação deva fomentar a inovação o desenvolvimento econômico, a partir do estímulo à criação de novos negócios, de novos produtos ou de qualquer solução que possa transformar o conhecimento em algo que gere valor.
The neoliberal discourse in Latin American higher education: A call for national development and tighter government control
Authors: Mendoza Pilar , Lisa Dorner
Published: November 2020

Using critical discourse analysis (CDA), we explored how educational leaders and policymakers in Mexico, Peru, Chile, and Argentina address complex issues while responding to – and in fact, developing – broader understandings (discourses) on the role of higher education in Latin America. Fairclough’s (1993) theory of discourse underscores that language is a social practice, socially and historically situated, and encompassing social identities, relations, and systems of knowledge and beliefs. Therefore, discourses, which are represented by all kinds of texts, exercise power because they can produce, reproduce, and transform social structures, including education policy. This study uncovers the nuances of the tensions that globalized discourses such as neoliberalism in particular face when met with national and local needs in Latin American higher education. These tensions need to be addressed in order to design policies that could effectively close the equity gap in the region amidst massification and the uncontrolled proliferation of private universities in many countries, offering access to underserved students to higher education but of questionable quality.  This study suggests research like this is important in order to understand how discourses that are deemed global play out at national and local levels and possibly, to uncover alternatives to the status quo.
Bahaya Doktrin Politik Komunisme
Authors: Putra Gilang Rizki Aji
Published: November 2020

Abstract:Communism in Indonesia has a bad stigma because it is mixed with non-politics. and communism was once a very influential political circulation in Indonesia. This is specifically seen in the process of selecting party chairmen in Indonesia, where each party's statutes / bylaws implies that communism is a forbidden ideology. therefore, there is a paradigm in society that communism means a perverted ideology. This paper shows that Communism has no relationship in the electoral process to political parties. The electoral process for the chairmanship of a political party will not run in a democratic manner if the basic rules / Bylaws of political parties do not get legalization from the government. Marxism as a thought movement will never die, because it will always be interpreted to answer the challenges of today's times, which are still full of human problems, alienation, inequality, injustice, and various other ills of society.Keywords: Communism, Idiology, Political Parties, Karl MarxAbstrak: Komunisme di Indonesia mempunyai stigma buruk akibat bercampurnya dengan tidak politik. serta komunisme pernah sebagai sirkulasi politik yang sangat berpengaruh di Indonesia. Hal ini secara spesifik tampak dalam proses pemilihan ketua   partai di Indonesia, di mana di setiap anggaran Dasar / Anggaran Rumah Tangga kepartaian secara tidak langsung menyiratkan komunisme menjadi ideologi terlarang. oleh karena itu, ada paradigma dalam masyarakat bahwa komunisme artinya ideologi yang sesat. tulisan ini menunjukan Bahwa Komunisme tidak mempunyai hubungan dalam proses pemilihan ketuapartai politik. Proses pemilihanketua partai politik tidak akan berjalan secara demokrasi jika pada aturan Dasar / Anggaran Rumah Tangga partai politik tidak mendapatkan legalisasi asal Pemerintah. Marxisme sebagai sebuah gerakan pemikiran tak akan pernah mati, karena akan selalu diinterpretasi buat menjawab tantangan zaman dewasa ini, yang masih oleh saratnya permasalahan manusia, alienasi, ketimpangan, ketidakadilan, serta berbagai penyakit masyarakat lainnya.Kata Kunci: Komunisme, Idiologi, Partai Politik, Karl Marx
Evolution of Tatarstan’s Local Self-Governments and Challenges They Face
Authors: Setiawan Refly
Published: November 2020

Abstract: The laws in the Republic of Tatarstan tend to limit the powers and coverage of local self-government, but Tatarstan’s laws go even further than most in maintaining the “power vertical” which allows state authorities to keep tight control of local self-governments. This control is exercised officially through the laws, and in practice, with financial controls. The local self- governments have difficulty with self financing and are left beholden to state authorities. Because the heads of the 43 administrative districts and 11 large cities in Tartarstan are directly appointed by the president, he exercises rigid control all the way down to the local level. In addition, because these administration heads are allowed to run for parliament, the president has also consolidated considerable power on the level of the republic’s government. In effect, government on the level of the administrative districts and large cities in the republic is completely in the hands of the president and his appointees, who also have financial control over local self- governments.Keywords: Evolution, Tatarstan Local Government, Challenges Faced Abstrak:Undang-undang di Republik Tatarstan cenderung membatasi kekuasaan dan cakupan pemerintahan setempat, tetapi undang-undang Tatarstan bahkan lebih jauh daripada kebanyakan undang-undang lainnya dalam mempertahankan "vertikal kekuasaan" yang memungkinkan otoritas negara untuk menjaga kontrol ketat atas pemerintahan sendiri. Kontrol ini dilakukan secara resmi melalui undang-undang, dan dalam praktiknya, dengan kontrol keuangan. Pemerintah daerah sendiri mengalami kesulitan dengan pembiayaan dan diserahkan kepada otoritas negara. Karena kepala dari 43 distrik administratif dan 11 kota besar di Tartarstan ditunjuk langsung oleh presiden, maka menjalankan kontrol yang kaku sampai ke tingkat lokal. Selain itu, karena para kepala pemerintahan ini diizinkan mencalonkan diri sebagai parlemen, presiden juga telah mengkonsolidasikan kekuasaan yang cukup besar di tingkat pemerintahan republik. Akibatnya, pemerintahan di tingkat distrik administratif dan kota-kota besar di republik sepenuhnya berada di tangan presiden dan orang-orang yang ditunjuknya yang juga memiliki kendali keuangan atas pemerintahan sendiri daerah.Kata Kunci: Evolusi, Pemerintahan Lokal Tatarstan, Tantangan Yang Dihadapi
A A Systematic Review on Impact of Edentulism on Nutritional Status of Eldrly Adults as Compared to Dentulous Adults
Authors: SUTARIYA PRIYANKA , Mehta Dr Shruti , Shah Dr.Hitendra , Shah Dr.Viraj , Karia Dr.Vinita , Goyal Dr.Tanvi
Published: November 2020

ABSTRACT

Background: Age related changes in oral structures and nutritional deficiencies cause difficulties in wearing complete dentures amongst elderly adults

Objective: To identify the impact of edentulism on nutritional status of eldrly adults.

Methodology: To conduct the present study, information of existing literature are collected from textbooks, printed journals, and electronic databases such as pubmed, scopus, and science direct.

Result: Prevalence of malnutrition rises with an increase in age. Edentulous subjects more likely to report trouble in chewing their food as compared to dentulous subjects. Edentulous subjects had significantly lower intake of calories, protein, carbohydrate, fibres, vitamins A, C,B1, and B6 . Intake of calcium and protein was lower in women with dentures than in dentate women. Compromised oral functional status was associated with lower serum albumin levels and lower BMI in functionally dependent elderly people.

Conclusion: There is good quality evidence that edentulism is associated with poor diet and compromised nutrition.Although the majority of the studies cited here have not established a cause and effect relationship, results from Sheiham and others. However, more longitudinal studies on this topic are required to further understand the potential role of nutrition in the prevention of age related changes and reduce the failure of complete denture treatment in elderly adults.

Keywords:Aging, Complete Denture, Elderly adults, Nutritional Assessment, Nutrition.
Analiza własności aerodynamicznych samolotu Su-22 z rakietą systemu wynoszenia ładunków na niską orbitę okołoziemską
Authors: Olejnik Aleksander , Kiszkowiak Łukasz , Zalewski Piotr , Dziubiński Adam
Published: November 2020

W pracy przedstawiono wyniki numerycznych analiz aerodynamicznych zespołu składającego się z samolotu-platformy Su-22M4 oraz rakiety do wynoszenia obiektów na niską orbitę. Przeprowadzono serię obliczeń dla różnych prędkości lotu.Wyniki wykazały, że zespół zachowuje w sposób zadowalający stateczność podłużną oraz dobre charakterystyki przeciągnięcia dla wysokich kątów natarcia w całym badanym zakresie, a wpływ prędkości jest niższy od tego wywołanego samą obecnością rakiety kosmicznej. Wyniki zaprezentowano w formie wykresów i map barwnych pola przepływu na powierzchni badanych brył uzupełnionych o obraz linii prądu.
Lotniczo-rakietowy system wynoszenia ładunków na niską orbitę okołoziemską – studium realizowalności
Authors: Olejnik Aleksander , Zalewski Piotr , Kiszkowiak Łukasz , Rogólski Robert , Borcuch Dominik , Milczarczyk Jarosław , Radomski Michał , Dziubiński Adam
Published: November 2020

Praca jest komunikatem dotyczącym stanu realizacji projektu badawczego. W opracowaniu zaprezentowano wyniki analizy obszaru badawczego projektu. Na tej podstawie dokonano wyboru platformy-nosiciela rakiety kosmicznej. Dwustopniowy system do wynoszenia mikro-satelity bazuje na zaadoptowanym samolocie bojowym przenoszącym rakietę z ładunkiem satelitarnym, która odstrzeliwana jest na maksymalnie osiąganej wysokości lotu. Jako potencjalną platformę transportową wytypowano dwa wycofywane ze służby bojowe samoloty naddźwiękowe: MiG-29 oraz Su-22. Dedykowana rakieta z ładunkiem misyjnym ma być przenoszona pod kadłubem. Wstępne analizy wykazały, iż wskazane samoloty przy zaproponowanym profilu misji z powodzeniem wykonają postawione zadanie wyniesienia hipotetycznej rakiety z ładunkiem użytecznym o masie co najmniej 10 kg na niską orbitę okołoziemską. Potwierdziło to zasadność podstawowej tezy projektu badawczego. Dla potrzeb analizy własności aeromechanicznych zestawu opracowano zarówno modele cyfrowe 3D do symulacji komputerowych, jak i fizyczne modele skalowane do badań tunelowych. Do odwzorowania geometrii samolotów wykorzystano skanery laserowe, a pomiary wykonano na egzemplarzach samolotów Su-22 oraz MiG-29 znajdujących się w zasobach bazy laboratoryjnej Instytutu Techniki Lotniczej WML WAT. Wykorzystując trójwymiarowe modele skalowane wygenerowane w środowisku CAD, wydrukowano fizyczne modele bryłowe do badań w tunelu aerodynamicznym. Wstępne symulacje komputerowe przeprowadzone w systemie ANSYS Fluent nie wykazały negatywnego wpływu rakiety kosmicznej na charakterystyki aerodynamiczne i stateczność samolotu-nosiciela.
Możliwości odzysku egzergii z modułu fotowoltaicznego umieszczonego na skrzydle statku powietrznego klasy HALE z wykorzystaniem zjawisk termoelektrycznych
Authors: Sierpowski Korneliusz , Wróblewski Wiesław , Malecha Ziemowit
Published: November 2020

W pracy zaproponowano sposób odzysku egzergii z modułu fotowoltaicznego umieszczonego na skrzydle statku powietrznego klasy HALE z wykorzystaniem zjawisk termoelektrycznych. Przeprowadzono analizę numeryczną zaproponowanego rozwiązania. Pokazano wyniki współpracy modułu fotowoltaicznego z modułem termoelektrycznym. Przedstawiono różnicę pomiędzy modułem fotowoltaicznym pracującym jako samodzielne źródło energii elektrycznej a modułem fotowoltaicznym sprzężonym z modułem termoelektrycznym. Pokazano, że w pewnych warunkach zaproponowane rozwiązanie korzystnie wpływa na zwiększenie produkcji energii z jednostki powierzchni. W pracy przeprowadzono także dyskusję nad możliwościami wykorzystaniem proponowanego rozwiązania, uwzględniając obecny stan wiedzy dotyczący materiałów termoelektrycznych.
Badania kompozytowego siłownika hydraulicznego do serwomechanizmu wspomagania sterowania śmigłowcem bezzałogowym
Authors: Szczepaniak Paweł , Jastrzębski Grzegorz
Published: November 2020

Przedstawione w publikacji zagadnienia dotyczą opracowania autorskiej technologii i wykonania siłownika hydraulicznego do napędu hydraulicznego układu sterowania lekkim śmigłowcem bezzałogowym. Celem pracy jest przedstawienie zagadnień dotyczących projektowania siłownika hydraulicznego do układu sterowania skokiem ogólnym i okresowym głowicy wirnika nośnego oraz skokiem śmigła ogonowego. W artykule przedstawiono autorskie rozwiązanie siłownika hydraulicznego z centralnym zasilaniem. Projekt tego siłownika jest elementem składowym projektu wielozadaniowego lekkiego śmigłowca bezzałogowego.W artykule zaprezentowano propozycje zredukowania masy siłownika hydraulicznego przez wprowadzenie nowoczesnych technik kompozytowych. Przeprowadzone prace projektowe i wyniki przeprowadzonych badań prototypu siłownika hydraulicznego ze wzmocnieniami kompozytowymi pozwoliły sformułować wnioski dotyczące procesu projektowania takich siłowników dedykowanych m.in. dla lekkich śmigłowców bezzałogowych.
O que se pesquisa em ensino contábil? Análise do Congresso USP de Contabilidade e Iniciação Científica
Authors: Vendramin Elisabeth de Oliveira , Lima João Paulo Resende de , Santos Isadora Jeane dos , Guasso Marcus Vinicius Pereira , Fernandes Natália
Published: November 2020

O presente trabalho tem como objetivo analisar o campo de estudos sobre ensino e pesquisa contábil do USP International Conference in Accounting e do Congresso USP de Iniciação Científica em Contabilidade. Para tal, foi realizada uma pesquisa bibliométrica com obtenção dos dados por meio de consulta aos anais dos congressos. Ao total, foram analisados 209 artigos relativos ao Congresso Internacional e 126 artigos referente ao Congresso de Iniciação Científica. Os dados apontam que a participação de artigos aceitos ficou entre 1,85% e 34,15%, com média de 8,11% para o Congresso Internacional e 15,38% para o Congresso de Iniciação Científica. 80,6% dos artigos de ambos os congressos possuem entre 2 e 4 autores, sendo que a maior rede de coautorias está no Congresso de Iniciação Científica. Com relação ao sexo, a autoria está equilibrada quando o olhar se volta para os dois eventos. Entretanto, as mulheres têm maior participação no Congresso de Iniciação Científica e os homens maior participação no Congresso Internacional. Diante desses resultados, conclui-se que a área de ensino e pesquisa constitui um campo periférico nos dois congressos devido a sua baixa quantidade de artigos em relação ao total, além do fato de que essas conferências possuem normas sociais distintas em relação a autoria. Assim, o presente artigo contribui para a literatura ao apresentar e discutir aspectos relacionados a constituição do campo científico de Ensino e Pesquisa em Contabilidade, compondo um perfil analítico da linha de ensino e pesquisa em um dos principais eventos da área.
Evaluation of components of an excess fuel flow in the heat power equipment
Authors:   Novosibirsk State Technical University, Russian Federation, Dvortsevoy Alexander , Grigorieva Oksana ,   Novosibirsk State Technical University, Russian Federation, Tikhonov Ilya ,   Novosibirsk State Technical University, Russian Federation
Published: November 2020

The use of traditional information systems with a low level of automation at thermal power plants does not allow organizing a channel for remote collection of reliable information about the current state of technological processes. The inability to organize data transfer to the central node for subsequent storage and processing does not allow tracking in full measure the need to repair or upgrade the equipment. In these conditions, an increase in the efficiency of the power plant is either impossible or relatively small. A significant increase in efficiency indicators can be reached by determining the least cost-effective elements or areas of the technological process, which becomes possible when using a complex collection of data from metering devices and their analysis. In the presence of a digital communication channel, data from the primary measuring device of technological processes (flow rate, pressure, temperature, voltage, etc.) can be transferred to a single information and analytical center. Based on the accumulated data, using a digital twin of the enterprise, real technical and economic indicators, as well as harmful emissions are calculated. Predictive calculations are performed for the cost effective operation of equipment and the introduction of new technologies. With a sufficient number of measurement devices, data storage makes it possible to analyze both the condition of the equipment and the state of the process at various points of time without having to affect the operating equipment. Part of informational functions of industrial control systems performed locally at TPPs can be executed remotely. These include such functions as recording events, information-computational and analytical functions, archiving information, and logging information (reporting).Analyzing the data on the technological process for a certain period (month, quarter, year, etc.), we can evaluate the efficiency of the implemented equipment and speak about the feasibility and ways of further modernization of the thermal power plant.
Methodology for managing equipment repairs in oilfield electrical networks
Authors:   Novosibirsk State Technical University, Russian Federation, Levin Vladimir , Guzhov Nikolay ,   Novosibirsk State Technical University, Russian Federation, Chernenko Natalya ,   Novosibirsk State Technical University, Russian Federation, Yahya Ammar ,   Novosibirsk State Technical University, Russian Federation
Published: November 2020

An innovative methodology for managing repairs in distribution networks and power supply systems for oilfield facilities is proposed in this paper. The methodology makes it possible to select optimal solutions in accordance with the priority management goal by formalizing a risk-based model for planning maintenance and repair (M&R) of electrical equipment with a "condition-based maintenance" strategy. One of the main options in the complex of M&R management tasks is an adaptive model of the technological map for the repairs of power facilities, formed in compliance with a number of key principles. The developed model allows you to optimize the volume and complexity of repairs of electrical equipment of a certain type based on the minimum composition of technological operations necessary to eliminate the identified defects. Detection of defects in electrical equipment is achieved by using methods of technical diagnostics and non-destructive testing. In this case, each of the defects is recorded in the defect statement for the object, with the determination of the degree of criticality and fixing a specific type of corrective action. Optimal prioritization of electrical equipment repairs is performed in accordance with the minimum risk function under current restrictions on reliability (an equipment technical condition index) and available resources (total maintenance costs). The originality of the implementation of a key risk event – a power supply failure of an oilfield facility provides calculating the probability and severity of the consequences of an electrical equipment failure taking into account its technical condition and features of the power supply scheme. The given example illustrates the effectiveness of the proposed approach and emphasizes the validity of optimal decisions. The key components of the developed methodology have found practical application in the conditions of real operation of the equipment of oilfield facilities.
Synthesis of a neural network control regulator of a nonlinear model of an inverted pendulum on a cart
Authors:   Novosibirsk State Technical University, Russian Federation, Voevoda Alexsander , Shipagin Victor ,   Novosibirsk State Technical University, Russian Federation
Published: November 2020

In this article, we consider a method for selecting a structure of a neural network used to regulate an "inverted pendulum on a cart" object taking into account its additional features of a mathematical description, namely, nonlinear parameters. The algorithm is illustrated by the example of control synthesis which includes two neuroregulators. One of them is responsible for bringing the cart to the specified position, and the second is responsible for holding the pendulum in a vertical position. The structure transformations will be performed for the controller responsible for bringing the cart to the specified position. The architecture of a neural network controller is based on a discrete controller synthesized using polynomial matrix decomposition. For the original controller, we define the limits of its possible control of a nonlinear system. To increase the range of control of a nonlinear object, we perform transformations of the neural network structure of the original controller. We will make some complications in the structure of the neural network of the regulator, namely, increase the number of neurons and replace some activation functions with nonlinear ones (hyperbolic tangent). Next, we suggest one of the ways to select initial values of weight coefficients. Then we train the neural network and check the performance of the resulting controller on a nonlinear object. At the next stage, we compare the obtained performance of a controller having a complicated neural network structure with the performance of a classical controller. Thus, the purpose of this study is to formalize the synthesis procedure for a neural network controller for controlling a nonlinear object using a calculated classical controller for a linearized object model. The proposed method of generating the architecture of a neural network of controllers makes it possible to increase the range of control by a nonlinear object in comparison with the controller obtained by the method of polynomial matrix decomposition for a linear object. Compared to the typical ones, the proposed neural network structure is not redundant and therefore does not require additional computing resources to configure it.
Control of the UAV group at uncertain delays in communication channels
Authors:   Southern Federal University, Taganrog, Russian Federation, Gaiduk Anatoly , Kapustyan Sergey ,   Southern Scientific Centre of the Russian Academy of Sciences, Rostov-on-Don, Russian Federation, Plaksienko Vladimir ,   Southern Federal University, Taganrog, Russian Federation, Kabalan Ali El A. ,   Southern Federal University, Taganrog, Russian Federation
Published: November 2020

The UAV groups and other unmanned robots are more and more widely used to solve production and special problems in view of their bigger efficiency in comparison with single robots. The efficiency of a group in many respects is defined by the opportunities of the communications means between members of the group and its leader, which influences the efficiency of the decisions made. The control of the UAV group is often exercised by a multivariable control system whose algorithms are implemented by a computer complex of the group UAV leader. The problem here is that in individual channels of information exchanges between the UAV-leader and other UAVs of the group there is a time delay. Any space distributions of the UAV in the neighborhood of the leader cause significantly different, uncertain delays in channels of its contact with the UAV group that can lead to a loss of control stability. It is proposed to apply a multivariable, robust to delay control system to overcome this difficulty. The design of this system is carried out on the basis of the matrix decoupling control and the method of an analytical design of systems with control on output and impact (ADSCOI) taking into account conditions of feasibility of controls on digital computing elements. Analytical expressions including the solution to the linear system algebraic equations and the creation procedure of the digital control algorithms are found in the article. This control provides robustness of the system to delays in communication channels. The efficiency of the proposed approach is illustrated by a numerical design example of the multivariable group control system of the UAV. The results obtained can be applied to create digital control systems by both single input-single-output and multi-input-multi-output objects with an uncertain delay in agricultural, food, power, machine-building and other industries.
An indoor temperature control system based on visible light communications technology
Authors:   East Kazakhstan Technical University, Ust-Kamenogorsk, Republic of Kazakhstan, Baklanov Alexander , Grigoryeva Svetlana ,   East Kazakhstan Technical University, Ust-Kamenogorsk, Republic of Kazakhstan, Alimkhanova Aslim ,   East Kazakhstan Technical University, Ust-Kamenogorsk, Republic of Kazakhstan, Dmitriev Alexander ,   Novosibirsk State Technical University, Russian Federation
Published: November 2020

The article proposes a new approach to temperature control in a building based on the Visible Light Communications technology. This approach is based on using LED lamps as temperature data transmitters as well as for lighting. Light modulation based on the UART standard was used for data transfer. A photodiode with the capability to distinguish relatively weak signals was used for receiving data. All data processing was performed by microcontrollers. UART-based modulation was also performed on a microcontrolle. The article describes in detail schematic circuits of transmitting and receiving devices. Based on developeed schematic circuits, a new experimental setup consisting of two units was created. The transmission unit includes a temperature sensor, a microcontroller, a driver and an LED. The receiving unit includes a photodiode, an amplifier and a microcontroller. An ATmega328P chip was used for both microcontrollers. Experimental setup consists of experimental models of both units. For signal transmission control, measurements of the pulse level and shape were conducted in the receiving device with an oscillograph. The signal level was anaylsed after all electronic components but before entering the microcontroller. Experimental results have shown that data transmission with the use of white LEDs was relatively stable. This allows the possibility of organising wireless control of temperature conditions on premises without Wi-Fi. Perspective uses of temperature control with white LEDs approach include the creation of “Smart house» control system without using wirelines and with cheap microcontrollers, which signficiantly decreases costs of the system.
Sample preparation protocol for hair fiber curvature analysis v1
Authors: Lasisi Tina
Published: November 2020

This protocol prepares hair fibers per sample for curvature analysis. Diagrams were created with BioRender.com
Making low peptone NGM for imaging plates v1
Authors: Barlow Ida
Published: November 2020

C. elegans is maintained in the laboratory on Nematode Growth Medium (NGM) agar which has been aseptically poured into petri plates. The NGM agar medium can be poured into petri plates easily and aseptically using a peristaltic pump. This pump can be adjusted so that a constant amount of NGM agar is dispensed into each petri plate. A constant amount of agar in the plates reduces the need for refocusing the microscope when you switch from one plate to another. For imaging purposes, low peptone NGM is prepared which contains less concentration of bactopeptone as compared to the normal NGM. This is because we don't want the seeded bacteria to grow too much and obscure the images, rather just sufficient enough to keep the worms from crawling out of the plate due to lack of food. The imaging plates can be 35mm, 60mm or 90mm in diameter depending on the assay design.
Modeling of Insect-Pathogen Dynamics with Biological Control
Authors: Saha Sangeeta , Samanta Guruprasad
Published: November 2020

In this work, a model has been proposed to analyze the effect of wild plant species on biologically-based technologies for pest control. It is assumed that the pest species have a second food source (wild host plants) except crops. Analytical results prove that the model is well-posed as the system variables are positive and uniformly bounded. The permanence of the system has been verified. Equilibrium points and corresponding stability analysis have also been performed. Numerical figures have supported the fact that the interior steady state if it exists, remains stable for any transmission rate. Henceforth biological control has a stabilizing effect. Furthermore, the results prove that biological control is beneficial not only for wild plants but for crops too.
Analytical Study of Non-Newtonian Reiner–Rivlin Model for Blood flow through Tapered Stenotic Artery
Authors: Dash Nibedita , Singh Sarita
Published: November 2020

Stenosis, the abnormal narrowing of artery, significantly affects dynamics of blood flow due to increasing resistance to flow of blood. Velocity of blood flow, arterial pressure distribution, wall shear stress and resistance impedance factors are altered at different degree of stenosis. Prior knowledge of flow parameters such as velocity, flow rate, pressure drop in diseased artery is acknowledged to be crucial for preventive and curative medical intervention. The present paper develops the solution of Navier–Stokes equations for conservation of mass and momentum for axis-symmetric steady state case considering constitutive relation for Reiner–Rivlin fluid. Reiner–Rivlin constitutive relation renders the conservation equations non-linear partial differential equations. Few semi-analytical and numerical solutions are found to be reported in literature but no analytical solution. This has motivated the present research to obtain a closed-form solution considering Reiner–Rivlin constitutive relation. Solution yields an expression for axial velocity, which is utilized to obtain pressure gradient, resistance impedance and wall shear stress by considering volumetric flow rate as initial condition. The effect of viscosity, cross viscosity, flow rate, taper angle of artery and degree of stenosis on axial velocity, resistance impedance and wall shear stress are studied.
Social orphanity in sociological study.
Authors:   State pedagogical university of Armavir Armavir, Russia, Kramchaninova Natalia V.
Published: November 2020

The article proposes a study of the phenomenon of social orphanhood, the social caus-es of the spread of social orphans, as well as some of their features in residential insti-tutions. Social orphanhood is a rather alarming sign, which shows not only unhealthy processes in the socio-economic sphere, but also the growing rate of cultural and mor-al deficit in society, the distortion of the institution of the family, and the lack of atten-tion of the State to the problems of maintaining a family with children throughout the entire period of reform. In addition, attention is drawn to the origins of social orphan-hood, namely, the general civilization processes that take place in under the influence of the devaluation of family values, the predominance of personal-achievable and he-donistic motivations compared to parental ones – both from men and from women.
‟Rotalia” – Estonian corporation in St. Petersburg (1913–1918)
Authors:   Saint Petersburg branch Of the Institute of history of the Academy of Sciences Saint Petersburg, Russia, Barinov Dmitriy A
Published: November 2020

Relevance. At the end of 19th – beginning of 20th centuries there was a new rise in the national movement in the Russian Empire. The increase of number of organizations struggling for political independence and / or cultural identity was also echoed in higher education. Student national societies were created in large university cities. Despite their common goal (the struggle for national autonomy) they could hold differ-ent political views: from revolutionary to deemed “apolitical” i.e. conservative ones. A striking example of the latter was the Estonian corporation ‟Rotalia”. Method or methodology. To bridge the existing historiographic gap, we will resort to the historical and biographical method. Through the memories and life path of the most famous members of the corporation, the main stages of the organization's activities will be restored. Results. The method we have chosen made it possible to supplement the poor archival evidence of the organization's activities, expand the understanding of the customs, life and traditions of the Estonians in St. Petersburg. It also allowed to determine the place of ‟Rotalia” in the political spectrum of student self-organizations. Conclusions. The material we worked out allowed us to highlight in more detail the St. Petersburg / Petrograd period of the existence of ‟Rotalia” and at the same time to re-veal the political views of its participants. The leaders of this corporation adhered to conservative views and tried to stay away from active political life, being concentrated on educational activities and organizing mutual assistance. At the same time they con-sistently and consciously distanced themselves from the socialist Estonian societies.
Research on Exchange and Cooperation between China-Russia International Friendship Schools-A case study of Primary and Junior Schools in Heihe.
Authors:   Heihe University Heilongjiang province, Heihe, China.,, Zhu Haijing
Published: November 2020

This article examines and summarizes the problems of development and exchange of experience and cooperation between Chinese and Russian primary and secondary schools, and also indicates the priority areas of the dynamics of exchange and cooperation between partner schools. The purpose of the article is to analyze the inter-action of educational institutions in Heihe District with educational institutions in the Russian Far East. The novelty of the topic is to notice the problems of cooperation and communication between Russian and Chinese international partner schools for the de-velopment of communication. To this end, the author describes in detail examples of interaction between Russian and Chinese international partner schools and analyzes the exchange and cooperation activities between them.
A.A. Shcherbatov's role in the activities of the Moscow city duma on urban development (1863–1869).
Authors:   School of Public Administration, Lomonosov Moscow State University Moscow, Russia, Zuieva Anastasiia A.
Published: November 2020

Introduction. A number of works are devoted to the study of the activities of the Mos-cow City Duma in urban landscaping in 1863–1869, but the reforms are described de-scriptively and the role of the Moscow mayor in this process is not highlighted. In turn, it is precisely his interest in improving the life of the city that is reflected in the quantity and quality of the implemented reforms of the Duma. There is a need to outline the terms of reference of the mayor, which will contribute to the effective implementation of reforms. Hence the interest in this problem. Materials and methods. The study is based on a number of sources, including: a) documents of the Office of the Moscow City General Duma, stored in the Central State Archives of Moscow; b) published documents of participants in the events; c) the regulatory legal acts of the Russian Empire; d) press materials, including journalism on the development of urban amenities and reports on the work of the Duma. The problem under study was already in the field of view of researchers [1; 2; 3; 4; 5; 6;]. One of the main researchers of the Moscow city Duma (1863–1869) is L.F. Pisarkova. In the field of her interests was the issue of vowel elections, determining the powers of the elected Duma and the role of A.A. Shcherbatov in the process of implementing key reforms of local self-government in Moscow. Also noteworthy are the collective Works of Komissarova S.A., koshkidko V.G., Solovyov K.A., as well as Zhukova L.A. and Romanov A.A., which contain a description of the Duma's reforms to improve the city of Moscow. The research methodology consists of: methods of documentary analysis of docu-ments, which made it possible to compare different documents on a specific issue, compare the available data and establish the essence of the reforms being carried out; the historical and genetic method, on the basis of which it was possible to identify the cause-and-effect relationships of the phenomenon under study and to determine the role of the Moscow mayor in the ongoing reforms; historical-comparative method, which made it possible to determine the difference in the state of development of the city before and after the reforms. Research results. An analysis of sources and historiography on the issue under study allowed us to determine the role of the Moscow mayor in enhancing the reform activi-ties of the Moscow City Duma, as well as to highlight the features of the leader's political behavior that contributes to the successful implementation of reforms.
Religiousness and civic identity of youth in the Republic of Dagestan: current state.
Authors:   Regional Center for Ethnopolitical Researches of Federal State Institution for Science Dagestan Scientific Center of Russian Academy of Science (DSC RAS) Makhachkala, Russia, Dzhabrailov Yusup D.
Published: November 2020

The article is devoted to determining the level of religiosity of Dagestan youth and its influence on the process of forming civil identity. Based on the results of a sociological study, the author states that there is a direct relationship between the level of youth religiosity and their civic identification. He states that the high level of religious identity of young people does not weaken the position of civic identification. At the same time, pronounced religious ties contribute to the formation of a culture of trust in persons of other confessional and ethnic groups at the level of interpersonal relations. The experience of close connection with co-religionists develops a culture of trust in a multi-ethnic and multi-confessional environment. Nevertheless, the author draws attention to the difference in indicators of civil identification in the Islamic-Christian border area, which is associated with the predominance in the mass consciousness of muslims and representatives of non-Russian nationality of the feeling of violation of civil rights on a confessional basis. It is concluded that with the adoption of the practice of meeting religious requests of communities throughout the Russian Federation, regardless of religious affiliation, it is expected to increase the indicators of civil identification of young people. The article notes that the regional level is dominated by trends for favorable interfaith communication. To a decisive extent, they may depend on the socio-political attitudes at the federal level.
Importance of nutrition and lifestyle for elderly during the COVID-19 pandemic
Authors: Abikusno Nugroho
Published: November 2020

Presently the world is experiencing a pandemic of a global magnitude never before witnessed and recorded by human civilization. No one is excluded from this disease and the most vulnerable are the very young and/the very old in our population. It is the most highly communicable and severe viral infection and most of our reproductive age population show practically no signs or symptoms of infection unless they are tested positive using the PCR method or arrive at the hospital in acute respiratory distress.(1) The infection spreads mostly in: 1) closed environment with poor ventilation such as clubs, café, restaurants, meeting rooms; 2) among crowds of people such as in public stations, malls, religious gatherings, and cinemas as well as; 3) within close contact with people usually friends, family or co-workers who form the cluster most likely to be infected with the virus.(2)
Ganglion cells apoptosis in diabetic rats as early prediction of glaucoma: a study of Brn3b gene expression and association with change of quantity of NO, caspase-3, NF-κB, and TNF-α
Authors: Tjandra Irwan , Artini Widya , Siregar Nurjati Chairani , Victor Andi Arus
Published: November 2020

AIM: To find a new concept to show whether or not apoptosis of retinal ganglion cells (RGCs) can be determined in the histology of acute hyperglycemia in the role of expressed Brn3b gene related to nitric oxide (NO), caspase-3, nuclear factor kappa-B (NF-κB), and tumor necrosis factor-α (TNF-α) as an early predictor of primary open angle glaucoma (POAG) eyes and their associations.
METHODS: Experimental in vivo study was carried out using adult male, white Sprague-Dawley rats aged ≥2mo, weighing 150-200 g. The animals were divided into two groups, one group receiving intraperitoneal injection of streptozotociz 50 mg/kg in 0.01 mol/L citric buffer and pH 4.5 and a comparison made with the control group. Retinal tissue was divided into two parts (both experimental and control groups respectively): a) right retina for immunohistochemistry (IHC; caspase-3 and TNF-α); b) left retina was divided into two parts for the purpose of real-time polymerase chain reaction (PCR) test (RNA extraction for Brn3b gene expression analysis) and ELISA test (NO and NF-κB).
RESULTS: The experimental group showed a decrease in Brn3b gene expression compared to the control group (1.3-fold lower in 2nd month; 1.1-fold lower in 4th month and 2.5-fold lower in 6th month). However, there was a decrease of NO, caspase-3, and an increase of NF-κB and TNF-α quantity.
CONCLUSION: The expression of mRNA Brn3b gene is inversely proportional to apoptosis in RGCs. The quantity of NO, caspase-3, NF-κB and TNF-α is influential in expression of Brn3b in RGCs caused by hyperglycemia in diabetic rats.
β-elemene down-regulates HIF-lα, VEGF and iNOS in human retinal pigment epithelial cells under high glucose conditions
Authors: Zhou Yun , Li Li-Hua , Chen Lei
Published: November 2020

AIM: To investigate the effects and mechanism of β-elemene on the expressions of hypoxia-inducible factor-1α (HIF-lα), vascular endothelial growth factor (VEGF) and inducible nitric oxide synthase (iNOS) in human retinal pigment epithelial (RPE) cells under high glucose conditions.
METHODS: ARPE-19 cell line was cultured under eight conditions: 1) low glucose (LG; 5.5 mmol/L); 2) high glucose (HG; 33 mmol/L); 3) high glucose with 20 μg/mL β-elemene (HG+20E); 4) high glucose with 40 μg/mL β-elemene (HG+40E); 5) high glucose with SB203590 [HG+SB203590, p38-mitogen-activated protein kinase (p38-MAPK) pathway inhibitor]; 6) high glucose with LY294002 [HG+LY294002, phosphoinositide 3-kinase/protein kinase B (PI3K/Akt) pathway inhibitor]; 7) high glucose with 40 μg/mL β-elemene and SB203590 (HG+40E+SB203590); and 8) high glucose with 40 μg/mL β-elemene and LY294002 (HG+40E+LY294002). Cells were treated in conditions 1-4 for 24 and 48h, while for 48h in conditions 5-8. Then mRNA and protein levels of HIF-1α, VEGF and iNOS in cells were measured by real-time polymerase chain reaction (qPCR), immunofluorescence and Western blotting, respectively. Furthermore, protein levels of total p38-MAPK, phosphorylated p38-MAPK (p38-MAPK-P), total Akt and phosphorylated Akt (Akt-P) in cells of conditions 2 and 4 which treated for 48h were measured by Western blotting.
RESULTS: The mRNA levels and protein levels of HIF-1α, VEGF and iNOS in cells were significantly reduced in conditions 3-8 when compared with those in condition 2 (P<0.05). These reductions were more obvious in conditions treated for 48h than in conditions treated for 24h. The protein levels of p38-MAPK-P and Akt-P in cells of condition 4 were significantly lower than in condition 2 (P<0.01).
CONCLUSION: β-elemene down-regulates HIF-1α, VEGF and iNOS in ARPE-19 cells under a high glucose condition. The inhibitory effect of β-elemene is more significant when its concentration and treatment time are increased, as well as it is combined with SB203590 or LY294002 treatment. P38-MAPK and PI3K/Akt signaling pathways may play a role in this inhibitory effect.
Effect of femtosecond laser-assisted steepest-meridian clear corneal incisions on preexisting corneal regular astigmatism at the time of cataract surgery
Authors: Chen Wei , Wu Jian , Wang Yong , Zhou Jing , Zhu Rong-Rong , Lu Hong , Guan Huai-Jin
Published: November 2020

AIM: To investigate the clinical efficacy and safety of femtosecond laser-assisted steepest-meridian clear corneal incisions for correcting preexisting corneal astigmatism performed at the time of cataract surgery.
METHODS: This prospective case series study comprised consecutive age-related cataract patients with corneal regular astigmatism (range: +0.75 to +2.50 D) who had femtosecond laser-assisted steepest-meridian clear corneal incisions (single or paired). Corneal astigmatism was performed with the Pentacam preoperatively and 3mo postoperatively. Total corneal astigmatism and steepest-meridian measured in the 3-mm central zone were used to guide the location, size and number of clear corneal incision. The vector analysis of astigmatic change was performed using the Alpins method.
RESULTS: Totally 138 eyes of 138 patients were included. The mean preoperative corneal astigmatism was 1.31±0.41 D, and was significantly reduced to 0.69±0.34 D (equivalent to difference vector) after surgery (P<0.01). The surgically-induced astigmatism was 1.02±0.54 D. The correction index (ratio of target induced astigmatism and surgically-induced astigmatism: 0.72±0.36) as well as the magnitude of error (difference between surgically-induced astigmatism and target induced astigmatism: -0.29±0.51) represented a slight under correction. For angle of error, the arithmetic mean was 1.11±13.70, indicating no significant systematic alignment errors.
CONCLUSION: Femtosecond-assisted steepest-meridian clear corneal incision is a fast, customizable, adjustable, precise, and safe technique for the reduction of low to moderate corneal astigmatism during cataract surgery.