bluuebunny/crossref_metadata_2025_split huggingface dataset:
Maurice Maeterlinck’s Characters in Russian Book Graphics
Authors: Fomin Dmitry V. 
Published: April 2023

The article discusses graphic cycles of Russian artists based on the works of the Belgian writer, playwright and philosopher Maurice Maeterlinck. This author’s enormous influence on the Russian culture of the Silver Age, alas, did not find an adequate and full-fledged embodiment in book graphics; however, it was reflected in several significant works of such prominent artists as S.Yu. Sudeikin, N.K. Roerich, B.I. Anisfeld, V.V. Spassky. In addition to belonging to the stylistic searches of Art Nouveau, their works on the themes of Maeterlinck’s plays are brought together by the desire for a symbolic and associative interpretation of the original source, the ability to use all the elements of the book ensemble to reveal its meaning.The tradition of graphic interpretation of M. Maeterlinck’s stories and images was outlined in the 1910s, but then it was interrupted for several decades. Book artists began to show interest in the writer’s work again only in the 1970s. Illustrators of the late 20th — early 21st centuries focused their attention on the playwright’s most famous work in Russia — “The Blue Bird” fairy play. They tried various ways of its pictorial interpretation — from a purely realistic one (B.A. Dekhterev) to those much more stylized, openly grotesque (E.A. Silina, V.I. Tsikota), from attempts to strictly follow the spirit and letter of the original source (S.A. Kovalenkov) to free improvisations on the topic proposed by the author (G.A.V. Traugot, B.P. Sveshnikov, I.Yu. Oleinikov). The article notes the relevance of such dissimilar readings of the famous play, the value of their simultaneous presence in the book culture.
Preferencias alimentarias en alumnos universitarios del área de nutrición: estudio transversal.
Authors: Nava González Edna Judith , Pineda-González Wendy Samantha , Gutiérrez-López Myriam , Chavero-Torres Magdalena Soledad , González-Guevara Erika , Negrete-López Nohemí Liliana , Jasso-Medrano José Luis 
Published: April 2023

Introducción: La alimentación se encuentra inmersa en el proceso salud-enfermedad, por lo tanto, es importante reconocer las preferencias de los alumnos universitarios. Objetivo: Identificar preferencias alimentarias de alumnos universitarios del área de nutrición. Material y Método: Estudio transversal en 343 alumnos de una Universidad Pública de Nuevo León, México. Encuesta en línea adaptada de un cuestionario de comportamiento alimentario. Análisis descriptivo. Resultados: 91% mujeres, edad 21.03 (±2.86) años. Platillos que prefieren en la facultad son chilaquiles y panini, fuera de la facultad seleccionan chilaquiles sándwich y tacos, en tiendas de conveniencia eligen botanas. Factores de consumo: sabor y precio; tiempo es lo que falta para mejorar su alimentación. Conclusiones: Conocer las preferencias alimentarias en alumnos permite establecer acciones preventivas en el entorno universitario.
Quantitative Determination of Ascorbic Acid in Herbal Medicinal Products by HPLC
Authors: Golomazova T. A. , Shefer E. P. , Prokhvatilova S. S. , Antonova N. P. 
Published: April 2023

Ascorbic acid (vitamin C) is involved in many vital biochemical processes in the human body. Rose hips are a natural source of ascorbic acid. Rose hips are used in decoctions and many vitamin herbal teas. Russian compendial methods for the quantitative determination of ascorbic acid have certain limitations precluding its objective measurement in herbal drugs, herbal drug preparations, and herbal medicinal products.The aim of the study was to develop an analytical procedure for the quantitative determination of ascorbic acid in herbal drugs, herbal medicinal preparations, and herbal medicinal products using high performance liquid chromatography (HPLC).Materials and methods. The study involved two herbal medicinal products, Rose Hips (rose hips) and Vitamin Herbal Tea 2 (rose hips and rowan fruits), and reference standards for ascorbic acid, rutoside, quercetin, gallic acid, caffeic acid, chlorogenic acid, luteolin-7-glucoside, citric acid, DL-malic acid, thiamine, and pyridoxine hydrochloride. The authors used a 1260 Infinity II chromatograph with a diode array detector by Agilent and an Inertsil ODS-3 chromatographic column (250 mm × 4.6 mm, 5 µm) by GL Sciences. The HPLC system was operated in gradient elution mode, and the detector was set at 244 nm.Results. Ascorbic acid content in herbal drugs, herbal medicinal preparations, and herbal medicinal products can be determined by HPLC. Adequate sample preparation and chromatography conditions allow for inhibiting ascorbic acid oxidation in aqueous solutions for a period sufficient to complete testing (not less than 8 h).Conclusions. The authors developed a highly sensitive and selective HPLC procedure for the quantitative determination of ascorbic acid intended for the standardisation of herbal drugs, herbal medicinal preparations, and herbal medicinal products. The procedure is worthy of inclusion in the Rose Hips and Vitamin Herbal Tea 2 monographs of the State Pharmacopoeia of the Russian Federation. Switching to HPLC should not require lowering the limit for ascorbic acid (not less than 0.2%) established in the Rose Hips and Vitamin Herbal Tea 2 monographs for the titration method. The ascorbic acid content was below this limit in the vast majority of study samples. However, this discrepancy may be explained by the presence of dog rose (Rosa canina) species low in vitamin C, which should normally be used only as choleretics.
Half a century of digital renewal of the Russian school in the light of the researcher’s biography. To the 80th anniversary of A. Yu. Uvarov
Authors: Semenov A. L. , Abylkassymova A. E. , Vardanyan V. A. , Grigoriev S. G. , Grinshkun V. V. , Karakozov S. D. , Lovyagin S. A. , Rudchenko T. A. 
Published: April 2023

The penetration of computer technology in general education in our country started more than half a century ago. Alexander Yurievich Uvarov was among those who started the work in the field of digital renewal of education. Today he is the Doctor of Sciences (Education), Professor at the Institute of Education of the National Research University Higher School of Economics, leading researcher at the Axel Berg Institute of Cybernetics and Educational Computing of the Federal Research Center “Computer Science and Control” of the Russian Academy of Sciences, laureate of the RF Government Prize in Education, long-time member of the editorial board of Informatics and Education journal. A. Yu. Uvarov made a significant contribution to the development of school informatics. His organizational activities and research largely determined the reality and future prospects for the digitalization of the national school. It is necessary to emphasize the importance and scientific significance of the research carried out by A. Yu. Uvarov.In January 2023, he turned eighty years old. The biography of this researcher, well known in Russia and abroad, reflects, as in a mirror, the half-century history of the digital renewal of the Russian school.
Educational and methodological materials of the master class “Adversarial attacks on image recognition neural networks” for students and schoolchildren
Authors: Pantiukhin D. V. 
Published: April 2023

The problem of neural network vulnerability has been the subject of scientific research and experiments for several years. Adversarial attacks are one of the ways to “trick” a neural network, to force it to make incorrect classification decisions. The very possibility of adversarial attack lies in the peculiarities of machine learning of neural networks. The article shows how the properties of neural networks become a source of problems and limitations in their use. The materials of the corresponding researches of the author were used as a basis for the master class “Adversarial attacks on image recognition neural networks”.The article presents the educational materials of the master class: the theoretical background of the class, practical materials (in particular, the attack on a single neuron is described, the fast gradient sign method for attacking a neural network is considered), examples of experiments and calculations (the author uses the convolutional network VGG, Torch and CleverHans libraries), as well as a set of typical errors of students and the teacher’s explanations of how to eliminate these errors. In addition, the result of the experiment is given in the article, and its full code and examples of approbation of the master class materials are available at the above links.The master class is intended for both high school and university students who have learned the basics of neural networks and the Python language, and can also be of practical interest to computer science teachers, to developers of courses on machine learning and artificial intelligence as well as to university teachers.
Teaching schoolchildren in the basics of artificial intelligence technologies in conditions of additional education
Authors: Latysheva L. P. , Olekhov A. A. , Skornyakova A. Yu. , Cheremnykh E. L. , Melnikova E. V. , Lapteva T. D. 
Published: April 2023

The article is devoted to the description of methodological approaches to teaching schoolchildren the basics of artificial intelligence based on the technology of organizing project and educational and research activities to achieve meta-subject results of education, the formation of systemic representations and the experience of their application in real life. The experience of organizing courses within the framework of additional education for students of 10–11th grades of secondary school on the use of neural networks in solving practice-oriented problems is presented. The block structure of the content of the courses is given, which is based on the phased implementation of the idea of the future project. A detailed description of the content of each block is given with a demonstration of a presentation of complex theoretical material that is accessible to the understanding of schoolchildren. In particular, recommendations are given for the study of sequential and recurrent models of artificial neural networks, fully connected and convolutional layers, object detectors, as well as an algorithm for training neural networks by backpropagation of errors. Data acquisition tools for training artificial neural networks are described. An algorithm for writing a program for training a neural network to recognize handwritten digits of the MNIST set is characterized. Examples of projects for the use of neural networks, carried out by students together with the teacher as part of the study of the proposed courses, are given.The article is addressed to teachers of additional education, informatics teachers, teachers and students of universities — everyone who is interested in the use of artificial neural networks in solving practical problems and methods of teaching schoolchildren in project activity.
The dermal toxicity of an antiseptic preparation as determined by the different research methods
Authors: Kushnir V. I. 
Published: April 2023

The article presents the results of the study of acute and subacute skin toxicity of an antiseptic ointment based on ichthyol. The research was conducted using the classic method and according to the methodology of the Organization for Economic Cooperation and Development (OECD No. 410). The study of the dermal toxicity of the product under study by the classic method showed that long-term use of the drug in animals of the experimental groups did not cause significant changes in the concentration of hemoglobin, the number of erythrocytes, leukocytes, the value of hematocrit, the average concentration of hemoglobin in the erythrocyte (MCHC), the average volume of the erythrocyte (MCV), the average content of hemoglobin in the erythrocyte (MCH) and the number of platelets, the content of total protein, the level of creatinine and the activity of AST. The study of skin toxicity of the product under study according to the OECD method No. 410 showed that the number of erythrocytes increased in the animals of the I, II, and III research groups, respectively, by – 10.7 (Р < 0.01), 6.0 (Р < 0.05), and 7.5 % (Р < 0.05). At the same time, the concentration of hemoglobin did not change. In addition, in the animals of the I and II experimental groups, a tendency towards an increase in hematocrit was established. In the animals of the I, II, and III experimental groups, changes in the erythrocyte index were noted; in particular, a probable decrease in the average content of hemoglobin in the erythrocyte (MCH) was established, respectively by – 5.2 (P < 0.05), 5.2 (P < 0.01) and 7.1 % (P < 0.001) of the average erythrocyte volume (MCV), respectively by – 6.9 (P < 0.01), 5.5 % (P < 0.01) and 7.2 % (P < 0.001). The use of the drug in a therapeutic dose caused a slight decrease in the level of total protein, urea, and creatinine against a slight increase in the activity of AST and ALT. At the same time, the animals of the II and III research groups, which received the drug under investigation at five times and ten times the therapeutic dose, noted an increase in the level of urea, respectively, by – 3.3 and 8.5 %, and creatinine, respectively, by – 1.9 and 8.0 % (P < 0.05), the activity of AST, respectively, by – 2.3 and 3.2 %, and ALT, respectively, by – 10.4 (P < 0.05) and 13.4 % (Р < 0.05) compared to the values of animals of the control group.
СУТНІСТЬ ТА ОЗНАКИ ПРОФЕСІЙНОГО РОЗВИТКУ ПРАЦІВНИКІВ СУДУ
Authors: Вітрук В. О. 
Published: April 2023

У статті проаналізовано специфіку професійного розвитку працівників суду. Деталізовано сутність даної правової категорії. Розкрито авторську класифікацію ознак професійного розвитку працівників суду. Охарактеризовано зміст кожної із них. У сучасних реаліях розвитку інститутів державної влади особливо цінуються висококваліфіковані, освічені, професійні спеціалісти, які повинні мати належну мотивацію для професійного зростання. Здобуття авторитету у професійному середовищі, необхідного фахового досвіду є рушійною силою подальшого кар’єрного росту. Мотиваційна складова професійного розвитку забезпечується такими елементами як системністю у досягненні більш високого освітнього рівня, постійним підвищенням професійної підготовки і, як наслідок, реалізацією власного потенціалу (отримання гідної заробітної плати, кар’єрне просування, підвищення добробуту). Службові досягнення є результатом кропіткої роботи у напрямку самовдосконалення і саморозвитку. Це вимагає життєвих прагнень та бажання, особливого відношення до професійної діяльності, емоційно-вольової складової реалізації власних вмінь та досягнення професіоналізму. Визначені особливості професійного розвитку засвідчили обов’язковий, цілеспрямований та комплексний характер підготовки працівників судових органів в Україні, який відбувається на постійній основі за встановленою програмою та має на меті підвищення професійного, морально-етичного рівня представників судової гілки влади та утвердження демократичних цінностей побудови сучасної системи судочинства. Огляд понятійно-категоріального апарату та сутності покращення рівня фахової майстерності та професіоналізму суддів та працівників апарату суду демонструє, що підготовка суддів має законодавче підґрунтя та є свідченням прогресивного розвитку кадрового складу представників судових органів в Україні.
On Absolute Valued Algebras Containing a Central Algebraic Element
Authors: Moutassim Abdelhadi 
Published: April 2023

Let be an absolute valued algebra containing a nonzero central algebraic element. Then is a pre-Hilbert algebra and is finite dimensional in the following cases:
1) A satisfies (x, x, x)=0.
2) A satisfies (x2, x2 , x2 )=0.
3) A satisfies (x, x2, x)=0.
In these cases is isomorphic to or . It may be conjectured that every absolute valued algebra containing a nonzero central element is pre-Hilbert algebra.
Role-Playing Games and Well-Being
Authors: Lehto Kerttu 
Published: April 2023

Do role-playing games (RPGs) affect the player’s well-being? Several studies suggest that they might have an impact, but the topic of RPGs and well-being is usually only mentioned as a side note or curiosity. A clear, coherent picture on the topic of RPGs and well-being is missing. This review article aims to provide that picture by compiling the already existing knowledge in one place. I ask the questions: What can we learn from the already existing research? How should RPGs and well-being be studied? What questions need resolving? What can be gained from studying RPGs and well-being?
RPG studies is a young academic interdisciplinary field of research, as is also the research of arts and well-being. They both are heterogeneous and related to a variety of academic traditions. They both are also dispersed, pragmatic, and until recently, scattered and lacking cohesive traditions or methodologies. Many basic ontological questions remain unsolved and the definitions of key concepts vary. They overlap in several discourses, such as the ones about (1) practices of sociodrama and replication therapy; (2) social, cultural, and digital capital; (3) leisure time research; (4) performance studies; (5) the topic of erotic role-play; (6) problematic vs. therapeutic gaming; and (7) health education. Previous research and practices focus mainly on live action role play (larp) and well-being, suggesting a positive impact. Online RPGs share their own traditions, but studies on tabletop RPGs and well-being are difficult to find. The studies are often case-studies or examine abstract topics such as human experiences.
In these studies, it becomes evident that RPGs do indeed impact well-being. However, questions such as how, why, and what features in RPGs affect well-being remain unanswered. In addition, the research has mainly been executed from the perspective of either RPGs or arts and well-being. Interdisciplinary cooperation is the key to successfully diving into the world of RPGs and well-being. Doing so would offer both fields useful practices, interesting perspectives, new opportunities for publication and academic discussion. It would not only add knowledge about RPGs and well-being but offer perspective to the unresolved ontological questions of each field. Eventually, further study on RPGs and well-being could transfer into the usage of RPGs in the fields of well-being, health, and therapy in a similar manner that arts are currently being used.
The impact of structured self-monitoring of blood glucose on clinical, behavioral, and psychosocial outcomes among adults with non-insulin-treated type 2 diabetes: a systematic review and meta-analysis
Authors: Holmes-Truscott Elizabeth , Baptista Shaira , Ling Mathew , Collins Eileen , Ekinci EIif I. , Furler John , Hagger Virginia , Manski-Nankervis Jo-Anne , Wells Caroline , Speight Jane 
Published: April 2023

BackgroundSelf-monitoring of blood glucose (SMBG) is considered of little clinical benefit for adults with non-insulin-treated type 2 diabetes, but no comprehensive review of a structured approach to SMBG has been published to date.PurposeTo conduct a systematic review and meta-analysis of the impact of sSMBG on HbA1c, treatment modifications, behavioral and psychosocial outcomes, and; examine the moderating effects of sSMBG protocol characteristics on HbA1c.Data sourcesFour databases searched (November 2020; updated: February 2022).Study selectionInclusion criteria: non-randomized and randomized controlled trials (RCTs) and prospective observational studies; reporting effect of sSMBG on stated outcomes; among adults (≥18 years) with non-insulin-treated type 2 diabetes. Studies excluded if involving children or people with insulin-treated or other forms of diabetes.Data extraction and analysisOutcome data extracted, and risk of bias/quality assessed independently by two researchers. Meta-analysis was conducted for RCTs, and moderators explored (HbA1c only).Data synthesisFrom 2,078 abstracts, k=23 studies were included (N=5,372). Risk of bias was evident and study quality was low. Outcomes assessed included: HbA1c (k=23), treatment modification (k=16), psychosocial/behavioral outcomes (k=12). Meta-analysis revealed a significant mean difference favoring sSMBG in HbA1c (-0·29%, 95% CI: -0·46 to -0·11, k=13) and diabetes self-efficacy (0.17%, 95% CI: 0.01 to 0.33, k=2). Meta-analysis revealed no significant moderating effects by protocol characteristics.LimitationsFindings limited by heterogeneity in study designs, intervention characteristics, and psychosocial assessments.ConclusionA small positive effect of sSMBG on HbA1c and diabetes self-efficacy was observed. Narrative synthesis of sSMBG intervention characteristics may guide future implementation.PROSPERO registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020208857, identifier CRD42020208857.
High brightness red emitting polymer beads for immunoassays: Comparison between trifluoroacetylacetonates of Europium
Authors: Dinga Daniel K. , Kasprzycka Ewa , Assunção Israel P. , Winterstein Franziska , Alizade Amina , Caliskanyürek Volkan , Blödorn Dirk , Winkle Johannes , Kynast Ulrich , Lezhnina Marina 
Published: April 2023

Efficiently luminescing spherical polymer particles (beads) in the nanoscale regime of up to approximately 250 nm have become very valuable tools in bioanalytical assays. Eu3+- complexes imbedded in polymethacrylate and polystyrene in particular proved to be extraordinarily useful in sensitive immunochemical and multi-analyte assays, and histo- and cytochemistry. Their obvious advantages derive from both, the possibility to realize very high ratios of emitter complexes to target molecules, and the intrinsically long decay times of the Eu3+-complexes, which allows an almost complete discrimination against bothersome autofluorescence via time-gated measuring techniques; the narrow line emission in conjunction with large apparent Stokes shifts are additional benefits with regard to spectral separation of excitation and emission with optical filters. Last but not least, a reasonable strategy to couple the beads to the analytes is mandatory. We have thus screened a variety of complexes and ancillary ligands; the four most promising candidates evaluated and compared to each other were β-diketonates (trifluoroacetylacetonates, R-CO-CH-CO-CF3, R = - thienyl, -phenyl, -naphthyl and -phenanthryl); highest solubilities in polystyrene were obtained with trioctylphosphine co-ligands. All beads had overall quantum yields in excess of 80% as dried powders and lifetimes well beyond 600 µs. Core-shell particles were devised for the conjugation to model proteins (Avidine, Neutravidine). Their applicability was tested in biotinylated titer plates using time gated measurements and a Lateral Flow Assay as practical examples.