bluuebunny/crossref_metadata_2025 huggingface dataset:
Methodology of online assessment of technical state of transformer substation 35/6 (10) kV by express analysis coefficient
Authors: Ivshin I. V. , Galyautdinova A. R. , Vladimirov O. V. , Nizamiev M. F. , Usmanov I. K.
Published: October 2021

THE PURPOSE. The purpose of this study is to develop a methodology for determining the coefficient of express analysis of the main equipment of a 35/6 (10) kV transformer substation (TS) to assess its technical condition. A three-level structural complex has been developed for measuring and express-analysis of the technical state of TP. The technical condition of the main equipment of the TP is analyzed according to the selected diagnostic parameters.

METHODS. The TP monitoring system makes it possible to assess the performance of its elements online. Express analysis provides remote monitoring, monitoring of the condition of the operating equipment and forecasting changes in the technical condition.

RESULTS. The proposed method for determining the coefficient of express analysis allows online monitoring of changes in monitored parameters, reducing the recovery time of failed elements, and maintaining equipment in a working condition.

CONCLUSION. The proposed solutions make it possible to move to the organization of maintenance and repair of the main power and electrical equipment of the transformer substation according to the actual state, as well as to improve the reliability and quality of the transmission of electrical energy to consumers.
The concept of an integrated system of energy efficiency control of artifical oil lift
Authors: Tsyplenkov S. V. , Agafonov E D.
Published: October 2021

THEPURPOSE.To consider the problems of controlling the energy efficiency of artificial oil lift. To conduct a comparative analysis of the approaches used to assess the level of energy efficiency and the possibility of energy saving. To submit to a modern possible energy efficiency control system. To identify an effective method for verifying energy efficiency indicators. To propose a concept of an automated control system for energy efficiency of artificial oil lift based on intelligent methods of data analysis.

METHODS.Whensolvingtheproblem,themethodoffactoranalysisofspecificpowerconsumption,implementedina model, was used.

RESULTS.Thearticledescribestherelevanceofthetopic,considersthefeaturesoftheuseofvariousindicatorsofenergyefficiency.A model of factors for specific power consumption has been developed. In this article, a concept of an automated energy efficiency control system based on intelligent methods has been proposed.

CONCLUSION. Usingtheindicatorofspecificelectricityconsumptionforartificialoillift,asanindicatorofenergyefficiency,makesitpossibletoassessthecurrentlevelofenergyefficiencyandidentifythepotentialforfurtherenergysaving.To control the specific consumption of electricity at the mechanized stock of production wells, it is necessary to implement systemic energy metering, additional factor analysis of deviations from the planned values. Using of intelligent methods of data analysis selects the factors of deviation of the specific power consumption and ensures the reliability of energy efficiency control.
Modeling of a helioabsorption heat pump system for hot water supply
Authors: Nguen Tien , Gilfanov K. H. , Gilyazov D. R.
Published: October 2021

THE PURPOSE. A domestic hot water supply system is proposed, combining a solar collector and a heat pump for the climatic conditions of the city BAC NINH - VIETNAM, capable of providing hot water to 5 users all year round. Justify the performance of the proposed system under these conditions.

METHODS. The solution of the problem was carried out experimentally and by the method of mathematical modeling. The mathematical model is based on the energy balance equations taking into account the efficiency factors. The scheme and principle of operation of the pilot plant and the results of the calculation of the combined hot water supply system based on the monthly average values of the total daily radiation for the location of the solar collector are presented. The system contains a solar collector with vacuum heat-absorbing tubes and an air heat pump as energy sources. With sufficient solar radiation, hot water is generated entirely from the heat-absorbing vacuum tubes, stored in the reservoir of the solar collector and passes through the reservoir of the heat pump to the consumer when the heat pump is not working. In case of insufficient solar radiation, the air heat pump is switched on.

RESULTS. The calculation of the power of the solar collector based on the average monthly values of the total daily radiation and the efficiency of the solar collector, the amount of heat added to the solar hot water supply system, the heat capacity of the heat pump, and a heat pump for the hot water supply system was selected.

CONCLUSION. The results of the experiments confirm the calculations for replenishing the heat deficit for the solar collector with an air heat pump of low power at any time of the year. The calculations are made for a system that provides hot water for the daily needs of five and three people. It is shown that the low heating capacity of the heat pump allows one to reduce the cost of initial investment in domestic hot water supply systems with a solar collector and, accordingly, the prospects of the proposed hot water supply system in Vietnam.
Alterations in the Occipital Cortex of Drug-Naïve Adults With Major Depressive Disorder: A Surface-Based Analysis of Surface Area and Cortical Thickness
Authors: Lee Jee Soo , Kang Wooyoung , Kang Youbin , Kim Aram , Han Kyu-Man , Tae Woo-Suk , Ham Byung-Joo
Published: October 2021

Objective Advances in surface-based morphometric methods have allowed researchers to separate cortical volume into cortical thickness (CTh) and surface area (SA). Although CTh alterations in major depressive disorder (MDD) have been observed in numerous studies, few studies have described significant SA alterations. Our study aimed to measure patients’ SAs and to compare it with their CTh to examine whether SA exhibits alteration patterns that differ from those of CTh in drug-naïve patients with MDD.Methods A total of 71 drug-naïve MDD patients and 111 healthy controls underwent structural magnetic resonance imaging, and SA and CTh were analyzed between the groups.Results We found a smaller SA in the left superior occipital gyrus (L-SOG) in drug-naïve patients with MDD. In the CTh analysis, the bilateral fusiform gyrus, left middle occipital gyrus, left temporal superior gyrus, and right posterior cingulate showed thinner cortices in patients with MDD, while the CTh of the bilateral SOG, right straight gyrus, right posterior cingulate, and left lingual gyrus were increased.Conclusion Compared with the bilateral occipito-temporal changes in CTh, SA alterations in patients with MDD were confined to the L-SOG. These findings may improve our understanding of the neurobiological mechanisms of SA alteration in relation to MDD.
meritocracia a examen
Authors: Borrell carrió Francisco
Published: October 2021

¿Cuál es el origen del floreciente populismo? ¿La desigualdad, el miedo de las clases dominantes a perder sus privilegios, la rabia de los más desfavorecidos ante la ineficacia de los partidos socialdemócratas? En el presente artículo revisaremos estas cuestiones bajo el prisma de la teoría de la Justicia de Rawls. Vivimos un auge de la desigualdad, pero no cualquier desigualdad: una desigualdad en la que los favorecidos miran por encima del hombro a los menos favorecidos, y no dudan en decirles: “es mi mérito estar donde estoy, si deseas progresar solo tienes que esforzarte como yo lo he hecho”. Esta soberbia meritocrática merece una respuesta, por ejemplo, eliminar o decrementar el valor del mérito. Pero decrementarlo en exceso puede conducirnos a sociedades mediocres, sin suficiente capacidad de innovación.Entonces, ¿hasta qué punto permitir la desigualdad? Hasta el punto “D” de Rawls, aquel en queesta desigualdad deja de tener un retorno positivo para los más desfavorecidos. Este punto “D”no debería cruzarse, pues los daños morales que provoca la tiranía del mérito pueden tenergraves efectos sobre la cohesión social.
HAIKUS COMO SIGNO DE REVOLUCIÓN
Authors: Casado Salvador
Published: October 2021

La poesía es una posibilidad narrativa de primer orden para acercarnos al mundo ycomunicarlo. Se presenta una serie de haikus (tercetos de origen japonés de cinco, siete y cincosílabas) como invitación a una lectura poética breve que anime al lector a buscar nuevos versosy, si fuera posible, a escribir los propios.
Penolakan UU Cipta Kerja 2020 (Analisis Schoemacher & Reese Pemberitaan Cnnindonesia.Com)
Authors: Nugroho Ari Cahyo , Syarifuddin Syarifuddin
Published: October 2021

Omnibus Law pertama kali muncul pada pidato Presiden RI Jokowi saat pelantikannya pada 20 Oktober 2019. Omnibus law adalah sebuah konsep pembentukan undang-undang utama untuk mengatur masalah yang sebelumnya diatur sejumlah UU atau satu UU yang sekaligus merevisi beberapa UU. Undang-undang ini dimaksudkan untuk merampaingkan regulasi dari segi jumlah agar lebih tepat sasaran Tentunya media sangat memiliki keterkaitan dengan pemberitaan diatas. Media dianggap bisa memediasi polemik ini. Media, dalam situasi ini, diperlukan untuk mempertemukan gagasan yang beragam, terutama aspirasi masyarakat. Keterkaitan hal ini dijabarkan dalam Teori Hirarki Pengaruh Pamela J Shoemaker dan Stephen D. Reese (Pamela J Shoemaker dan Stephen D. Reese 1996). Teori ini menjelaskan tentang pengaruh terhadap isi dari suatu pemberitaan media oleh pengaruh internal dan eksternal. Dalam kaitan dengan penulisan ini, keberadaan media siber di Indonesia juga merupakan bagian dari kemerdekaan berpendapat, kemerdekaan berekspresi, dan kemerdekaan pers. Salah satunya adalah media siber situs berita CNNIndonesia.com. Situs berita CNNIndonesia.com merupakan milik Trans Media. CNNIndonesia.com menyajikan konten lokal dan internasional, dengan fokus pada berita umum, bisnis, olahraga, teknologi dan hiburan. CNNIndonesia.com telah diluncurkan pada 20 Oktober 2014 dengan Yusuf Arifin sebagai pemimpin redaksi. Tulisan ini difokuskan pada keterkaitan Teori Hirarki Pengaruh Pamela J Shoemaker dan Stephen D. Reese dengan dengan pemberitaan Omnibus Law dalam CNNIndonesia.com. Hasil analisa menyebutkan bahwa Media CNNIndonesia.com sangat minim memberitakan bagaimana Omnibus Law membahayakan kebebasan pers dan kerja-kerja jurnalistik itu sendiri. Hal ini semakin menguatkan bahwa media daring (CNNIndonesia.com) memang tak memiliki agenda.
Kata Kunci: Analisis Schomacher dan Reese, Pemberitaan
APPLICATION OF ELECTRICAL TECHNOLOGIES FOR THE RESTORATION OF AGRICULTURAL MACHINERY PARTS
Authors: Shirobokova Ol'ga , Kisel' Yuriy , Bezik Dmitriy
Published: October 2021

The technology of non-galvanized ironing of parts in the electrolyte flow with simultaneous hydromechanical activation of the plated surface is proposed, its advantages over the traditional type of coating are shown. The technological process of coating hydraulic control valve spools has been developed. The technological process of restoring spools consists of the following operations: preliminary surface preparation (mechanical treatment), degreasing, washing, anodic treatment, electrodeposition and final mechanical treatment. The designs of the installation and the electrochemical cell for ironing hydraulic control valve spools, providing optimal hydrodynamic conditions when applying coatings on worn surfaces, are proposed. Optimal modes and composition of ironing electrolyte have been defined, providing a high rate of precipitation growth (1.5...3 mm/h), adhesion strength and wear resistance of coatings. Bench and field tests of hydraulic valves with restored spools were performed, which confirmed the results of laboratory studies and the high efficiency of the proposed technology.
ARRANGEMENT OF ENGINEERING MODELING OF TECHNOLOGICAL SYSTEMS FOR SOLVING PRODUCTION TASKS OF DIVERSE COMPLEXITY
Authors: Safarov Damir , Kondrashov Aleksey , Fashudtinov Ayrat
Published: October 2021

The paper considers a technique that allows to increase the efficiency of solving various types of production tasks based on simulation modeling. The technique considers the process of engineering modeling of technological system components in accordance with conceptual hierarchical levels, which with the deeper level provide an approximation of the simulated object from the initial correspondence in the form of equipment contours to the maximum in the form of a 3D component model based on 3D scanning. This technique allows to choose the most adequate option of modeling the technological system components, corresponding to the complexity of the production task solved by simulation modeling. The application of the technique in the design and engineering services of a machine-building enterprise allows to arrange the modeling process, select all its stages, assign performers, check the execution of the modeling process, ensure that the models correspond to the production task being solved. The technique effectiveness is confirmed by the given examples of solving production tasks of diverse complexity – simulation modeling of gear milling of helical bevel gears and circular tooth pulling. The purpose of the paper is to reduce the complexity of building 3D models of technological systems by engineering services of machine-building enterprises for solving production problems of diverse complexity thanks to the hierarchical structuring of input design information for building 3D models of a technological system and solved production tasks. Research methods: functional differentiation of processes. Research results and novelty: reducing the duration of solving production tasks of diverse complexity by decreasing the time of 3D modeling of technological systems. Conclusions: rational arrangement of engineering modeling based on the hierarchical structuring of input design information for building 3D models of a technological system and solved production tasks allows to reduce the duration of engineering modeling up to two times.
Screw removal torque evaluation in implants with cone morse and external hexagon platforms in anterior cantilever
Authors: Barbosa Figueiredo Olinto , Eduardo Francischone Carlos , Franco Amanda Gonçalves , Alberto Pinheiro de Carvalho Geraldo , Salles Sotto Maior Bruno
Published: October 2021

This study aims to evaluate the screw removal torque on prosthetic platforms of Cone Morse (CM) and External Hexagon (EH) implants in crowns with anterior cantilever. Materials and Methods: in vitro study with a sample consisting of 20 test specimens of 2 elements (21 and 22), with n = 40; load is simulated on element 21 or on cantilever of 22. Samples were divided into 4 groups consisting of 10 test specimens on CM implants (groups 1 and 2), and 10 test specimens on EH implants (groups 3 and 4).  The test specimens were manufactured using cylindrical PVC pipes measuring 22 x 19.05 mm filled with acrylic resin. The implants were fixed with a centralization device. Components used were EUCLAs and UCLAs with a  chrome-cobalt alloy molten base. The metal bases were scanned, the crowns were digitally waxed, made on CAD/CAM system, and cemented on the metal bases with Panavia cement. Torque was applied using 20N for CM and 32N for EH, according to the manufacturers’ instructions. The test specimens were then subjected to a cycling process consisting of 1,000,000 cycles at a frequency of 2 Hz. The cyclic process applied axial forces to the surface (palate face of 21 and 22). Two cycling processes were carried on, the first on the palate face of 21 and the second on the palate face of 22. Between the two, screws were removed and replaced by new ones. The screw removal torque was measured using a digital torque meter. Results were analyzed with Student’s t test and variance analysis. Statistical calculations were conducted in SPSS 23 using 5% of significance. Results: Student’s t test showed significantly lower removal torque values in comparison with initial torque for both CM and EH connection implants and force applied to elements 21 and 22 (p < 0.001) or 22 (p < 0.001). Considering torque loss, there was no significant effect of the interaction between type of implant connection and site of force application (p = 0.094). Removal torque was significantly lower than initial torque for both implants (CM and EH). Conclusion: Torque loss occurred both in CM and EH. There was no significant effect of the interaction between connections and site of force application.
Pelatihan Mengaplikasikan Gmail dan Ymail untuk Calon Guru Sekolah Dasar
Authors: Sakti Bayu Purbha
Published: October 2021

Elementary school teachers are required to be able to use email. Pre-primary elementary school teachers must now be able to master email to teach it to future generations. This service activity aims to provide training and skills to students of the Primary School Teacher Education Study Program, Widya Dharma University Klaten. The trainees began to realize that they could send messages using Gmail and ymail. The participants of the training began to realize that they could ask questions in real time using Gmail and ymail. The participants of the training began to realize that they saved articles typed using Gmail and ymail. All participants who took part in the training activities were very interested in becoming elementary school teachers. Elementary school teachers will also have to have email to communicate, send syllabus, and as account data that is recognized by the education office.
Volcanologists - Who are we and where are we going?
Authors: Kavanagh Janine , Annen Catherine , Burchardt Steffi , Chalk Caitlin , Gallant Elisabeth , Morin Julie , Scarlett Jazmin , Williams Rebecca
Published: October 2021

Equity, diversity and inclusivity (EDI) are principles all scientific groups and organisations should strive to achieve as they secure working conditions, policies and practices that not only promote high-quality scientific output but also well-being in their communities. In this article, we reflect on the progress of EDI in volcanology by presenting data related to memberships of international volcanology organisations, positions on volcanology committees, volcanology awards and lead-authorship on volcanology papers. The sparse demographic data available means our analysis focuses mainly on gender identity discrimination, but we show that discrimination related to ethnicity, sexual orientation, religion, physical ability and socio-economic background is also occurring, with the intersection of these discriminations further exacerbating marginalisation within the volcanology community. We share suggestions and recommendations from other disciplines on how individuals, research groups and organisations can promote, develop, and implement new initiatives to call out and tackle discrimination and advance EDI in the volcanological community. There is a lot of potential for improvement if we all see our role in creating a more equitable, diverse and inclusive volcanology community. This requires 1) Awareness: acknowledgement of the problem, 2) Commitment: through the statement of EDI core values and the development of action plans, codes of conducts, and guidelines, 3) Action: aiming for representation of all groups, and 4) Reflection: development through critical self-reflection and a willingness to address shortcomings.
Social Comparison for Concern and Action on Climate Change, Racial Injustice, and COVID-19
Authors: Ulichney Virginia , Jarcho Johanna , Shipley Thomas , Ham Jonathan , Helion Chelsea
Published: October 2021

Preventing the negative impacts of major, intersectional social issues hinges on personal concern and willingness to take action. This research examines social comparison in the context of climate change, racial injustice, and COVID-19 during Fall 2020. Participants in a U.S. university sample (n = 288), reported personal levels of concern and action and estimated peers' concern and action regarding these three issues. Participants estimated that they were more concerned than peers for all three issues, and took more action than peers regarding COVID-19 and climate change. Participants who reported higher levels of personal concern also estimated that they took greater action than peers (relative to participants who reported lower levels of concern). Exploratory analyses found that perceived personal control over social issues increased participants’ concern and action for racial injustice and climate change, but yielded no change for COVID-19. This indicates that issue-specific features, including perceived controllability, may drive people to differently assess their experiences of distinct social issues.
Acquiring knowledge: Epistemic trust in the age of fake news
Authors: Tanzer Michal , Campbell Chloe , Saunders Rob , Luyten Patrick , Booker Thomas , Fonagy Peter
Published: October 2021

The alarming spread of fake news and the breakdown of collective trust in sources of information is a major ongoing concern. Public mistrust and conspiracy beliefs canchange behaviour in a way that profoundly alters society’s reaction to new information. However, we still lack a broad psychological and socio-evolutionary understanding ofthe transmission of knowledge: the concept of epistemic trust (defined as trust in communicated knowledge) could provide the basis for such an integrated understanding. This study examined the role of epistemic trust in determining individualcapacity to recognise fake and real news, and susceptibility to conspiracy thinking – both in general and in relation to COVID-19. Measuring three different epistemic dispositions – trusting, mistrusting and credulous – in two different studies (study 1 = 705; study 2 = 502), we found that Credulity is associated with inability to discriminate between fake and real news. To explore the developmental factors at work in creating vulnerability to fake news, we investigated the mediating role of Mistrust and Credulity, and found that these factors mediated the relationship between exposure to childhood adversity and the failure to distinguish between fake and real news. Both Mistrust and Credulity were also associated with general and COVID-19 related conspiracy beliefs; similarly, Mistrust and Credulity were associated with vaccine hesitancy, both in general and in relation to COVID-19. Findings illuminate the potential psychological processes at work in generating broad social-political phenomena such as fake news and conspiracy thinking.
GAMBARAN PERUBAHAN AKTIVITAS DAN DIET PADA PASIEN POST KATETERISASI JANTUNG
Authors: Pertiwi Essa Widya , Erwin Erwin , Dewi Wan Nishfa
Published: October 2021

Tujuan penelitian ini adalah mengetahui gambaran perubahan aktivitas dan diet pada pasien post kateterisasi jantung. Metode penelitian ini bersifat kuantitatif dengan desain penelitain deskriptif. Metode pengambilan sampel adalah accidental sampling dengan jumlah responden 30 orang. Alat ukur yang digunakan adalah kuesioner yang telah di uji konten validitas dan reliabilitas. Hasil penelitian ini menunjukkan adanya perubahan aktivitas sebelum dan setelah melakukan tindakan kateterisasi jantung terkait pola dan intensitas aktivitas serta diet. Sebelum kateteriasasi jantung aktivitas terkait pola aktivitas dasar adalah ketergantungan berat (50%) dan setelah kateteriasi jantung menjadi mandiri (100%). Intensitas aktivitas sebelum dan setelah kateterisasi adalah intensitas rendah dengan persentase sebelum melakukan tindakan kateterisasi jantung (56.7%) dan setelah kateterisasi (100%). Diet makanan berkolesterol sebelum kateterisasi 3-6x/minggu (56,7%) dan setalah kateteriasi jantung 2x/bulan (80%). Konsumsi makanan berserat sebelum dan setelah melakukan kateterisasi jantung adalah 3-6x/minggu dengan persentase sebelum kateterisasi jantung (46,7%) dan setelah kateterisai jantung (73,3%). Konsumsi makanan berprotein nabati sebelum dan setelah kateteriasi jantung adalah 3-6x/minggu dengan persentase sebelum kateterisasi (46,7%) dan setelah kateterisasi (56,7%). Konsumsi makanan bervitamin sebelum kateterisasi adalah 1-2x/minggu (76,7%) dan setelah kateterisasi 3-6x/minggu (60%). Hasil penelitian ini diharapkan dapat menjadi masukan untuk penderita penyakit jantung koroner agar dapat memanajemen aktivitas dan diet sehingga terdapat perubahan dalam aktivitas dan diet tersebut.
Stabilność systemu finansowego Unii Europejskiej
Authors: Mikita Małgorzata
Published: October 2021

The aim of the article is to present activities undertaken at the EU level to ensure financial stability, and to assess the degree of stability of the EU financial system on the basis of selected indicators. The first part of the article introduces the concept of financial system stability and describes its importance in the modern economy and the methods of estimating the stability of the financial system. The second part of the article is devoted to the presentation of activities undertaken by the EU to increase the stability of the financial system, and the assessment of financial stability on the basis of two indicators: the Z-score indicator, used to assess the stability of the banking system, and the Stock Price Volatility index, showing the stability of the capital market.
Wyzwania polityki fiskalnej dla państw Unii Europejskiej w dobie pandemii COVID-19
Authors: Wildowicz-Szumarska Anna
Published: October 2021

The aim of the article is to explore the size and the structure of fiscal packages, implemented in response to the crisis caused by COVID-19, from the point of view of their impact on the security and stability of public finance. The first section provides an overview of the economic theory on the role of fiscal policy, including the causes of fiscal intervention. Next, difficulties in conducting fiscal policy under the conditions of pandemic are presented. In addition, fiscal instruments and their size are analysed in the context of their influence on budget results. In conclusion, it is claimed that fiscal packages should be temporary and targeted in order not to create a permanent burden on public finance, ensuring budget neutrality in the medium term. The empirical analysis expands the current knowledge on potential effects of fiscal policy implemented under the crisis conditions and low interest rates, when macroeconomic stabilisation can only be ensured through fiscal policy instruments, despite the accompanying fiscal costs related to the increase in public debt.
HEALTH SYSTEMS MANAGEMENT AND FINANCIAL SUSTAINABILITY IN GEORGIA
Authors: Manana Maridashvili  , Davit Meparishvili  , Ekaterine Sanikidze
Published: October 2021

The article discusses and evaluates Health systems management and financial sustainability in Georgian Health Institutions, also provides the analyses of the state of health care in the conditions of Georgia. Improving and further developing the primary health care system is crucial to controlling the financial sustainability and growth costs of the health care system, including increasing funding and access to funding, and strengthening the role of the planned outpatient sector - family physician, As well as effective management of patients with chronic diseases. Activating the role of the physician, thus enabling the early detection of various diseases, as well as the effective management of patients with chronic diseases. At the same time, we consider a significant increase in funding for medicines, which will reduce the aggravation of a number of diseases at the level of inpatient treatment, thus saving considerable financial resources in the universal program, which is spent in the inpatient sector, and also improves public health.
МЕТОДЫ ИССЛЕДОВАНИЯ СВЕРХСЛАБОГО СВЕЧЕНИЯ БИОЛОГИЧЕСКИХ ОБЪЕКТОВ. II. МЕТОДЫ, ОСНОВАННЫЕ НА БИОЛОГИЧЕСКОМ ДЕТЕКТИРОВАНИИ
Authors:   Московский государственный университет имени М.В. Ломоносова, Володяев И.В. , Белоусов Л.В. ,   Московский государственный университет имени М.В. Ломоносова, Концевая И.И. ,   Гомельский государственный университет им. Ф. Скорины, Наумова А.Е. ,   Санкт-Петербургский государственный университет, Наумова Е.В. ,   Институт физики полупроводников им. А.В. Ржанова СО РАН
Published: October 2021

Во второй части обзора методов исследования сверхслабого свечения представлена методология исследований сверхслабого свечения биологических объектов с помощью биологических детекторов. В течение первых 25 лет (1923-1948 гг.) почти все исследования сверхслабого свечения проводились именно с биологическими детекторами, причем регистрировалась только компонента, относящаяся к среднему ультрафиолетовому диапазону (в ранних работах - митогенетическое излучение), которую обнаруживали по изменению митотического режима детектора. Эти исследования остаются спорными из-за недостаточной доказательности методик, но многие полученные результаты, революционные для того времени, уже подтверждены, а научная проблематика остальных представляет значительный интерес (например, фундаментальные результаты, касающиеся деления клеток и канцерогенеза, ранняя онкодиагностика), поэтому анализ их методологии актуален для дальнейшей экспериментальной проверки этих исследований. В обзоре приведен анализ основных методик с использованием в качестве детекторов корней лука, дрожжевых и бактериальных культур, а также проведено сопоставление методики лукового детектирования с ближайшим современным аналогом (Allium-тест).
ВЛИЯНИЕ КОНЦЕНТРАЦИИ ВНЕКЛЕТОЧНОГО СА2+ НА ЗАВИСИМОСТЬ «ЧАСТОТА-СИЛА»: ЭФФЕКТ ПОТЕНЦИАЦИИ ПАУЗОЙ В УСЛОВИЯХ ВЫРАЖЕННОЙ ГИПОТЕРМИИ В МИОКАРДЕ МОРСКОЙ СВИНКИ
Authors:   Институт биофизики клетки РАН - обособленное подразделение ФИЦ «Пущинский научный центр биологических исследований РАН», Аверин А.С. , Захарова Н.М. ,   Институт биофизики клетки РАН - обособленное подразделение ФИЦ «Пущинский научный центр биологических исследований РАН», Игнатьев Д.А. ,   Институт биофизики клетки РАН - обособленное подразделение ФИЦ «Пущинский научный центр биологических исследований РАН»
Published: October 2021

Исследовано влияние четырехкратного снижения концентрации Са2+ в перфузирующей среде в условиях выраженной гипотермии на сократительные ответы папиллярных мышц правого желудочка морской свинки - зависимости «частота-сила» в интервале частот 0.1-1.0 Гц и эффекта потенциации паузой при частоте стимуляции 0.3 и 0.8 Гц при температуре 20°С. Показано, что при снижении концентрации внеклеточного Са2+ происходило значительное снижение силы сокращения папиллярных мышц от 40 до 70%, достигающее максимума в 72 ± 3% при частоте 0.4 Гц; при этом сохранялся положительный характер зависимости «частота-сила». Абсолютные значения эффекта потенциации паузой снижались, причем наиболее выраженно при более низкой частоте стимуляции (79 ± 6% и 40 ± 19% при 0.3 и 0.8 Гц соответственно). Таким образом, показано, что в условиях выраженной гипотермии в миокарде морской свинки сохраняется преимущественная зависимость сокращения от внеклеточных источников Са2+, вместе с тем увеличение частоты стимуляции ведет к увеличению содержания Са2+ в саркоплазматическом ретикулуме.
КАТИОН НИТРОЗОНИЯ КАК КОМПОНЕНТ ДИНИТРОЗИЛЬНЫХ КОМПЛЕКСОВ ЖЕЛЕЗА, ОПРЕДЕЛЯЮЩИЙ ИХ ПРОТИВООПУХОЛЕВЫЙ ЭФФЕКТ
Authors:   Федеральный исследовательский центр химической физики им. Н.Н. Семёнова РАН, Ванин А.Ф. ,   Институт регенеративной медицины Первого Московского государственного медицинского университета имени И.М. Сеченова Минздрава России, Островская Л.А. ,   Институт биохимической физики им. Н.М. Эмануэля РАН, Корман Д.Б. ,   Институт биохимической физики им. Н.М. Эмануэля РАН, Блюхтерова Н.В. ,   Институт биохимической физики им. Н.М. Эмануэля РАН, Рыкова В.А. ,   Институт биохимической физики им. Н.М. Эмануэля РАН, Фомина М.М. ,   Институт биохимической физики им. Н.М. Эмануэля РАН
Published: October 2021

Исследована противоопухолевая эффективность сочетанного применения экзогенного донора цитотоксических катионов нитрозония, биядерных динитрозильных комплексов железа с глутатионом и диэтилдитиокарбамата натрия на модели карциномы легких Льюис мышей. Установлено, что торможение роста опухоли под влиянием динитрозильных комплексов железа (2 мкМ/кг, внутривенно), диэтилдитиокарбамата натрия (250 мкМ/кг, внутрибрюшинно) и при их совместном применении составило 48, 76 и 57% соответственно. Предполагается, что этот эффект обусловлен способностью диэтилдитиокарбамата натрия разрушать в опухолях эндогенные динитрозильные комплексы железа с высвобождением из них катионов нитрозония, что и приводило к некоторому усилению противоопухолевого действия препаратов при их совместном применении.
Determinan Produksi Padi Pada Kelompok Tani Rukun Tani di Desa Ciampea Udik Kecamatan Ciampea Kabupaten Bogor
Authors: Abdilah Fajar , Humaira Linar , Fitriani Anna
Published: October 2021

Abstrak Penelitian ini memiliki maksud mengetahui faktor-faktor yang mempengaruhi produksi padi di Kelompok Tani Rukun Tani, Desa Ciampea Udik, Kecamatan Ciampea, Kabupaten Bogor. Jenis penelitian adalah deskriptif kuantitatif. Analisis data memakai uji hipotesis dan uji asumsi klasik, teknik pengolahan data menggunakan alat SPSS versi 20 yang menghasilkan regresi linier berganda. Hasil analisis determinan secara segmental, komponen produksi, luas lahan, biaya pupuk, biaya pestisida, dan varietas padi berdampak secara signifikan terhadap produksi padi. Peubah yang tidak berdampak secara parsial terhadap produksi padi yaitu faktor produksi tenaga kerja. Secara simultan faktor produksi luas lahan, beban pupuk, beban pestisida, tenaga kerja, dan varietas padi memberikan dampak secara signifikan terhadap produksi padi Kelompok Tani Rukun Tani di Desa Ciampea Udik. Produksi padi pada Kelompok Tani Rukun Tani di Desa Ciampea Udik sebesar 85,4% ditentukan oleh luas lahan, beban pupuk, beban pestisida, tenaga kerja dan varietas padi.AbstractThis study aims to determine the factors that influence rice production in the Rukun Tani Farmer Group, Ciampea Udik Village, Ciampea District, Bogor Regency. This type of research is descriptive quantitative. Data analysis using hypothesis testing and classical assumption test, data processing technique using SPSS version 20 which produces multiple linear regression. The results of segmental determinant analysis, production components, land area, fertilizer costs, pesticide costs, and rice varieties have a significant impact on rice production. The variable that does not have a partial impact on rice production is the labor production factor. Simultaneously the production factors of land area, fertilizer load, pesticide burden, labor, and rice varieties have a significant impact on the rice production of the Rukun Tani Farmer Group in Ciampea Udik Village. Rice production in the Rukun Tani Farmer Group in Ciampea Udik Village was 85.4% determined by land area, fertilizer load, pesticide load, labor, and rice varieties.
Supporting Enrollment in Higher Education Through a Visual Recommendation System
Authors: Minguillón Julià , Rivas Noe , Chacón Jonathan
Published: October 2021

Nowadays, most universities offer programmes and subjects online, specially in the case of fully online open/distance universities. Students have a higher degree of flexibility, which allows them to choose among an endless list of subjects for advancing within their degree. Although this can be seen as a positive result of enrollment flexibility policies, it may be also the source of one of the most well-known problems in open/distance education: high dropout rates, partly caused by inadequate enrollment. In this paper we propose a recommendation system that helps students to navigate through the list of available subjects using a visual metaphor, taking into account students’ preferences and previous enrollment data. Our system is based on a two-dimensional map (2D) where subjects that can be taken together appear close to each other, as neighboring regions.
Limits of Conventional Machine Learning Methods to Predict Pregnancy and Multiple Pregnancy After Embryo Transfer
Authors: Correa Núria , Vassena Rita , Cerquides Jesús , Arcos Josep Lluís
Published: October 2021

When training models to learn the relationship between two or more variables, we expect to see previously demonstrated knowledge about that relationship reflected in the resulting estimators. For some domains, such as healthcare, it is imperative for actual implementation of those models that their predictions respect this knowledge. In this study we focus on Assisted Reproduction Technology (ART), the subspecialty of gynecology occupied with treating human infertility, and where the goal of any treatment is the delivery of a healthy newborn. A common ART treatment is In vitro Fertilization (IVF), where embryos are generated in vitro from collected sperm and oocytes, and transferred to the uterus of the patient after selecting those most likely to give rise to a healthy pregnancy. IVF has an approximate 30% successes rate per cycle; to palliate for this low success rate, a common practice so far has been to transfer two embryos simultaneously, aiming to increase the chances of a favorable outcome. While increasing overall live birth rates, this method has also led to an alarmingly high rate of twin and triplet births, associated with four times higher risk of perinatal mortality and increased obstetric complications. Our objective is to predict the chances of both pregnancy (P) and multiple pregnancy (MP) following either single embryo transfer (SET) or double embryo transfer (DET), and in so facilitating an informed decision on how many embryos to transfer. From existing literature, it is known that: (1) it is not possible for the chances of both P and MP to be decreased by increasing the number of embryos; (2) MP chances cannot be higher than P; and (3) chances of pregnancy are highly correlated with age, embryo stage, and quality. With a dataset generated from an existing observational study, we trained several state-of-the-art classifiers to predict P and MP given SET and DET. Analyzing the results, all classifiers achieved promising AUC scores. However, Random Forest and Gradient Boosting predicted negative chance differences in many instances when increasing the number of embryos infringing the first constraint. Logistic Regression predicted always positive differences, but in some instances it infringes the second constraint, predicting higher chances of MP than of P. Moreover, it showed little to no variation across ages or embryo stages violating third constraint. Conventional Machine Learning models struggle to reflect the real-world outcomes when using DET versus SET in specific patients. More informative variables could help, but it is already worrisome that variables as important as age and embryo stage do not result already in any variation, and that when models do show variation, in many cases they predicted decreasing chances of success with more embryos. We conclude that new and different approaches are needed to correctly model this scenario and, likely, many others resembling this one.
Absolute Distance Prediction Based on Deep Learning Object Detection and Monocular Depth Estimation Models
Authors: Masoumian Armin , Marei David G.F. , Abdulwahab Saddam , Cristiano Julián , Puig Domenec , Rashwan Hatem A.
Published: October 2021

Determining the distance between the objects in a scene and the camera sensor from 2D images is feasible by estimating depth images using stereo cameras or 3D cameras. The outcome of depth estimation is relative distances that can be used to calculate absolute distances to be applicable in reality. However, distance estimation is very challenging using 2D monocular cameras. This paper presents a deep learning framework that consists of two deep networks for depth estimation and object detection using a single image. Firstly, objects in the scene are detected and localized using the You Only Look Once (YOLOv5) network. In parallel, the estimated depth image is computed using a deep autoencoder network to detect the relative distances. The proposed object detection based YOLO was trained using a supervised learning technique, in turn, the network of depth estimation was self-supervised training. The presented distance estimation framework was evaluated on real images of outdoor scenes. The achieved results show that the proposed framework is promising and it yields an accuracy of 96% with RMSE of 0.203 of the correct absolute distance.
Analytical representation of hydrophone complex frequency response
Authors: Isaev Alexander E.
Published: October 2021

The problem of analytical representation of hydrophone complex frequency response based on a model consisting of an advance line and a minimum-phase part, which describing the effect of sound diffraction and resonance properties of an active element, is considered. Algorithms are proposed for approximating the hydrophone complex frequency response by a fractional-rational function of the complex variable according to the data of the hydrophone amplitude-frequency and/or phasefrequency responses. Examples of the application of these algorithms for processing experimental frequency characteristics of hydrophones are given.
State primary standard of optical density unit GET 206-2016
Authors: Zyablikov Dmitriy N. , Ivanov Aleksandr V. , Koldashov Artem V. , Marchenko Sergey N.
Published: October 2021

The description of the State Primary Standard of optical density unit GET 206-2016 is given. The principle of operation of the standard, based on filtering the luminous flux of transmitted and reflected light, is described. The composition of the standard and its metrological characteristics are presented. Data on the study of the geometric and spectral characteristics of the standard are presented. Currently, GET 206-2016 allows solving the problems of metrological support of optical transmittance density measuring instruments (radiographic non-destructive quality control of materials in various industries) and optical reflection density measuring instruments (printing, applications of energy-saving and graphic technologies).
Periodismo, militancia y contienda política
Authors: Benavidez Vásquez Wilson , Carrera Andrade Patricio
Published: October 2021

Periodismo y política parecerían ser —a primera vista— dos mundos antagónicos e irre­conciliables, al menos si se los mira desde la óptica de las aulas universitarias, donde se apren­de que el primero denuncia las arbitrariedades y la indolencia del segundo, mientras que la política intenta ocultar sus decisiones y tergiversar sus actuaciones. Este trabajo busca desmi­tificar esta idea, evidenciando —a manera de hipótesis— que en Ecuador las fronteras entre ambos son bastante permeables, al punto que el periodismo se ha convertido en un escenario de contienda política en que la militancia partidista y el “ajuste de cuentas” son evidentes, lo que debilita la esfera pública y fortalece al poder político, al que dice cuestionar.
La desinformación en el actual contexto informativo. El caso de la pandemia del COVID-19
Authors: Fontana Walter
Published: October 2021

La presente investigación desarrolla la desinformación desde la comunicación social a partir de la actual situación de pandemia a nivel mundial, para lo cual hace referencia al trabajo desarrollado por el International Center for Journalists (ICFJ) como parte del ICFJ Global Health Crisis Reporting Forum, llevado a cabo en los primeros meses de 2020. La desinformación es abordada desde los siguientes aspectos teóricos: la comunicación política y la construcción de la noticia. Desde la comunicación política se tiene en cuenta a los actores y su constante conflicto por la imposición de la agenda política en el espacio público mediatizado.
Do parents count for their children's mathematics achievement?
Authors: Caponera Elisa , Palmerio Laura
Published: October 2021

The purpose of this study is to evaluate the relationship between parental involvement and student mathematics achievement using a structural equa¬tion modeling approach. Data from a representative sample of fourth-grade students, and their parents, from 14 different European countries participating in TIMSS (Trends in International Mathematics and Science Study) were analyzed. The model was successful in explaining the TIMSS scores in mathematics: the predicted model showed a good fit to the data, with 31% of the variance explained. The results showed that SES contributed to the prediction of performance in mathematics. However, the results showed also the positive and signifi¬cant effects of parental involvement factors - especially parental expectations for their children's academic attainment - mediating the relationship between SES and TIMSS math achievement. Thus, increasing parental par¬ticipation could be a useful intervention to reduce SES-related differences in performance.
Management accounting and governance implications: The case of the University of Bologna
Authors: Gigli Sabrina , Mariani Laura , Paletta Angelo
Published: October 2021

University mission is a complex topic. Mission fulfilment requires the ability to manage different objectives simultaneously. An adequate performance management system can be crucial to support this process. The recent accounting reform of the Italian public universities offers the opportunity to implement such a performance management system. The introduction of the accrual accounting approach for financial reporting - and budgeting - does, in fact, require the collection of a greater amount of data and, notably, a richer amount of information on costs. The collected data and information can then be effectively used to promote accountability and to support decision-making processes from the governance to the operational level. In this context, the question arises: What are the drivers and the barriers that can facilitate the introduction of an effective performance management system in public universities? In order to answer this question, the authors conducted a study on the case of the University of Bologna, at its first implementation of a management accounting system (called COAN project). The aim of the COAN project is to contribute to the understanding of the organizational and procedural conditions that may affect the introduction of accounting innovation in the context of public universities.
Meditazione e mente nella mindfulness e nella tradizione religiosa buddhista: differenze essenziali
Authors: Toro Maria Beatrice , Davide Bettera Stefano
Published: October 2021

In questo articolo scritto a quattro mani si descrivono le caratteristiche distin-tive della meditazione mindfulness e della meditazione buddhista. Sebbene Jon Ka-bat-Zinn fondatore dei protocolli mindfulness abbia tratto molto dalla meditazione vipassana, si vuole sottolineare come la mindfulness resti un approccio laico, sce-vro di implicazioni spirituali. La proposta buddhista ha, al contrario, una profon-da dimensione spirituale. Ci sembra appropriato distinguere i due approcci ed entrare in dialogo nel ri-spetto delle differenze, mentre, al contrario, troviamo poco utili, ambigue e fuor-vianti, le commistioni oggi purtroppo sempre più diffuse.
Impatto dell'acufene e sue implicazioni psicofisiche durante la pandemia da Covid-19
Authors: De Luca Francesca , Davide Longo Paquale
Published: October 2021

Lo stato di emergenza che abbiamo vissuto e che stiamo ancora vivendo, in-sieme alle restrizioni che hanno modificato radicalmente le nostre abitudini e mi-nato le nostre sicurezze ha impattato fortemente sulle nostre vite. E ha colpito in modo ancor più profondo le persone affette da acufene, una condizione che au-menta frequentemente in condizioni di stress. Per queste persone, l'isolamento so-ciale imposto dalle restrizioni da pandemia è una prova molto dura da affrontare che potrebbe esacerbare vissuti ansiosi o depressivi.