bluuebunny/crossref_metadata_2025 huggingface dataset:
ВЛИЯНИЕ НИЗКОТЕМПЕРАТУРНОЙ ПЛАЗМЫ ДИЭЛЕКТРИЧЕСКОГО БАРЬЕРНОГО РАЗРЯДА НА ФИЗИКО-ХИМИЧЕСКИЕ И ТЕХНОЛОГИЧЕСКИЕ СВОЙСТВА ПРИРОДНЫХ СУЛЬФИДОВ ЖЕЛЕЗА
Authors: В.А. ЧАНТУРИЯ , И.Ж. БУНИН , М.В. РЯЗАНЦЕВА
Published: October 2024

Представлены результаты комплексных исследований механизма влияния неравновесной низкотемпературной плазмы диэлектрического барьерного разряда в воздухе при нормальных условиях и давлении на кислотно-основные, сорбционные и флотационные свойства природных сульфидов железа (пирита и арсенопирита) с целью установления связи между параметрами плазмохимической обработки, физико-химическими и технологическими свойствами сульфидных минералов. Методом адсорбции кислотно-основных индикаторов Гаммета установлено, что в результате плазменной обработки происходит усиление акцепторных и снижение электронодонорных свойств поверхности пирита, а также уменьшение акцепторной способности арсенопирита. Отмечен рост сорбционной способности пирита по отношению к электронодонорному бутиловому ксантогенату и, как следствие, повышение флотационной активности минерала. В случае арсенопирита наблюдалось снижение сорбционной и флотационной активности. Показано, что предварительная обработка минеральных проб продуктами низкотемпературной плазмы вызывала снижение выхода мышьяка в пенный продукт флотации на 10 - 11 % при уменьшении содержания мышьяка в концентрате на 0.71 - 0.78 %.

The authors describe the integrated studies into the influence exerted by nonequilibrium low-temperature plasma of dielectric barrier discharge in air under normal conditions and pressure on the acid-base, adsorption and flotation properties of natural iron sulfides (pyrite and arsenopyrite). The studies aimed to correlate the plasmachemical treatment parameters with the physicochemical and process properties of sulfide minerals. Using the Hammet indicator method, it is found that plasma treatment strengthens acceptor properties and weakens electron donor properties of pyrite surface, as well as weakens acceptor properties of arsenopyrite. Adsorptive properties of pyrite relative to the electron-donor butyl xanthate grow, and, as a consequence, flotation activity of the mineral improves. In case of arsenopyrite, the adsorptive properties and flotation activity decrease. It is shown that the low-temperature plasma pretreatment of minerals reduces arsenic yield in flotation froth by 10-11% at the reduced arsenic content of concentrate by 0.71-0.78%.
ВЛИЯНИЕ ФИЗИЧЕСКОЙ ФОРМЫ СОРБЦИИ СОБИРАТЕЛЯ НА ФЛОТАЦИЮ ГАЛЕНИТА КСАНТОГЕНАТОМ В ПРИСУТСТВИИ ИОНОВ PB2+
Authors: С.А. КОНДРАТЬЕВ , И.А. КОНОВАЛОВ
Published: October 2024

Предложен механизм флотации галенита, основанный на совместной работе химически сорбированного собирателя и физически закрепившегося ксантогената свинца в молекулярной форме. Экспериментально установлено, что продукты взаимодействия ксантогената с ионами свинца обладают поверхностной активностью, зависящей от соотношения их концентраций и рН раствора. В щелочной области они растекаются по границе раздела “газ - вода” и могут удалять жидкость из прослойки, разделяющей минеральную частицу и пузырек газа. В слабокислой среде и повышенном мольном соотношении катионов свинца к анионам ксантогената скорость растекания продуктов взаимодействия снижается. Механизм работы физически сорбируемого собирателя позволил раскрыть причины высокой флотируемости галенита в щелочном диапазоне рН и снижение флотируемости в слабокислой области.

The authors propose the galena flotation mechanism based on the joint work of chemisorbed collector and physisorbed lead xanthate in molecular form. It is proved experimentally that the products of interaction between xanthate and lead ions possess surface activity dependent on the concentration ratio and on solution pH. In alkaline range, they spread over the gas-water interface and can remove water from the interlayer between a mineral particle and a gas bubble. In sub-acid medium and at the increased mole ratio of lead ions to xanthate anions, the spreading velocity of the interaction products decreases. The physisorption mechanism of the collector has disclosed the causes of high floatability of galena in the alkaline range of pH and the decreased floatability in the sub-acid domain.
Employer Image and Employer Brand: Interaction of Both Terms
Authors: Vecuma-Veco Annija
Published: October 2024

Currently, when the demand for employees is higher than supply, there is a question of possible solutions. One of the opportunities for companies is to ensure that they will be chosen when their potential employees consider making career changes. This is where the terms “employer image” and “employer brand” come into the picture – terms often used interchangeably in the scientific and professional fields. The aim of the article is to eliminate the confusion in the use of employer brand and employer image as terms and to show their theoretical position among other interconnected terms. It is presented through definitions and a model proposed by the author. In addition, the author points to the consideration of ethics when applying the employer brand.
The Influence and Significance of the Jurisprudence of the Constitutional Court on the Formation of Modern Criminal Policy
Authors: Gutauskas Aurelijus
Published: October 2024

The aim of this article is to review some of the (more important) aspects of the jurisprudence of the Constitutional Court and its influence on the formulation of the modern criminal policy. It assesses the relationship between the quality of criminal laws and the impact of the Constitution on their enactment, the content of the constitutional conditions for the restriction of individual rights, and the influence of the Constitutional Court’s jurisprudence on the modern cassation process.
Prohibition of fur farming in Lithuania: a justified animal protection measure or an excessive restriction of freedom of economic activity?
Authors: Saladžius Adomas , Pikūnas Ainius
Published: October 2024

The research work analyses the jurisprudence of the Constitutional Court, the European Court of Human Rights and the Court of Justice of the European Union and legal doctrine relevant to restrictions on the freedom of economic activity (inter alia, the prohibition of economic activity). Based on these sources, the conditions for the application of the most stringent measure restricting the freedom of economic activity – prohibition of economic activity – are identified. After discussing the theoretical aspect of the prohibition of economic activity, a legal analysis of a practical example – the prohibition of breeding and keeping fur-bearing animals – is presented.In the first parts of the thesis, an analysis of the doctrine of the Constitutional Court and supranational courts reveals the prevailing concept of freedom of economic activity at the national and international levels, as well as the main conditions for its restriction. Furthermore, the key measures for the protection of legitimate expectations in the event of a prohibition of economic activity are identified.The paper then analyses the specific case of the prohibition of breeding and keeping of fur-bearing animals in Lithuania as of 1 January 2027 from the point of view of the conditions set out in the doctrine, the principles of proportionality and the protection of legitimate expectations. Considering that the prohibition of breeding and keeping of fur-bearing animals is the first case of a complete prohibition of economic activities in Lithuania, the authors of this paper analyse the proportionality of the regulation in question and the guarantee of the protection of legitimate expectations, using the examples of vacatio legis and compensation mechanisms provided for in analogous legal regulations adopted abroad. The work also analyses the compliance of the established compensation mechanism for losses incurred by the breeders of fur-bearing animals with the Constitution and the legal principles.
Issues on compensation for damage caused to patients in the provision of healthcare services
Authors: Mackevič Laura , Mečanec Dominykas
Published: October 2024

Health is one of the most important values of the individual and of society, which calls for a specific model of legal regulation and compensation that best serves the interests of the individual and society. In Lithuania, the new version of the PTŽSAĮ, which entered into force on 1 January 2020, introduced a no-fault model of compensation (administrative model). Analysing the relationship between the newly entered into force model of no-fault compensation (administrative model) and the previously existing model of judicial action, it would be incorrect to state that only the model of no-fault compensation (administrative model) is currently in operation in Lithuania, given the exhaustive list of the persons entitled to apply for non-pecuniary damages, which has been established by the current wording of the PTŽSAĮ, however, according to the authors of the article, by abolishing the exhaustive list of persons entitled to claim compensation for non-pecuniary damages and allowing all persons who have suffered damages as a result of inadequate provision of healthcare to a patient to claim compensation on the basis of the model of no-fault compensation (the administrative model), it would be reasonable to say that the model of no-fault compensation (administrative model), which has been put into force, has indeed changed (is in a position to change) the model of judicial action. Having established that there is reason to believe that the model of no-fault compensation (administrative model) will completely replace the model of judicial action in the future, the authors of the article draw attention to the existence of legal issues related to the implementation of the principle of full compensation in the event of the death of a foetus. Having established that a foetus has a limited right to health and life from the 12th week of pregnancy and a full right to life from the 22nd week of pregnancy, but there is currently no legislation in Lithuania to protect the health of the foetus, it can be concluded such situation raises the problem of the implementation of the principle of full compensation for damages. One potential solution to the problem could be the application of a legal fiction in relation to the foetus in the context of the PTŽSAĮ, as this would ensure the foetus’ right to life and health and justice.
Prostitution in Lithuania in 1935–1940
Authors: Žuravliovaitė Gintarė
Published: October 2024

The article analyses the peculiarities of prostitution regulation in Lithuania until the mid-1930s, with a focus on the significance of reforms carried out in 1935. The research revealed that while control over prostitution persisted, efforts were made to reduce factors of exploitation by imposing criminal liability primarily on those profiting the most from prostitution, such as brothel keepers and procurers. Furthermore, using criminal laws and archival material, the study examined the practices of law enforcement institutions - the police and the courts - in prostitution cases, as well as the conditions of brothel keeping and procuring, and the working and living conditions of prostitutes, along with their daily life aspects.
Kindling in psychopharmacology: Unveiling an overlooked clinical challenge with significant implications
Authors: Maviglia Marcello , Cooeyate Norman , Hume Donald , Guerra Laura
Published: October 2024

The kindling phenomenon, often overlooked in clinical settings, emerges during the withdrawal phase from various substances, including sedative-hypnotic drugs (such as benzodiazepines and alcohol), psychiatric medications, and opioids. The progressive worsening of withdrawal symptoms with each successive episode characterizes this phenomenon. Consequently, its implications extend far beyond immediate clinical manifestations. A thorough understanding of how to prevent kindling is crucial in the treatment of Substance Use Disorders and mental health conditions. Elucidating the mechanisms underlying kindling is essential for researchers, clinicians, and individuals undergoing treatment. This article delves into the implications of kindling, explores the issue of differential diagnosis, addresses strategies for its effective clinical management, and aims to enhance treatment outcomes. Additionally, it highlights the invaluable roles of medical doctors, therapists, and peer support specialists in addressing the challenges of kindling.
CONTROL OF THE DYNAMICS OF A PULSE CONVERTER WITH SOFT SWITCHING OPERATING WITH ARC LOAD
Authors:   Admiral Makarov National University of Shipbuilding, Ave. of Heroes of Ukraine, 9, Mykolaiv, 54007, Ukraine, Vereshchago E.M. , Kostiuchenko V.I. ,   Admiral Makarov National University of Shipbuilding, Ave. of Heroes of Ukraine, 9, Mykolaiv, 54007, Ukraine, Stohniienko Ye.V. ,   Admiral Makarov National University of Shipbuilding, Ave. of Heroes of Ukraine, 9, Mykolaiv, 54007, Ukraine, Hrieshnov A.Yu. ,   Admiral Makarov National University of Shipbuilding, Ave. of Heroes of Ukraine, 9, Mykolaiv, 54007, Ukraine
Published: October 2024

Issues of design and research of energy-efficient and reliable semiconductor DC voltage converters for wide application in power supply devices of arc plasmatrons used in plasma metal cutting installations are considered. An estimated structural dynamic model of a soft-switching DC converter with a closed-loop control system combining the power part and the control system, intended for use as part of the latter as a digital module, was built. A technique is proposed and methods of controlling the converter are found, which provide the specified duration of transient processes, the permissible value of load current pulsations in a quasi-steady mode and the astatism of the output current, which confirms the correctness of the proposed technique. A prototype of a pulse stabilizer with digital control was made. The results of experimental studies of the sample confirm the effectiveness of the developed control device, namely the achievement of the specified duration of transient processes caused by a step change in the load current, close to 10-12 periods of conversion and astatism of the output current. It is shown that the application of a pulse stabilizer, in which a digital control loop is used, has significant advantages compared to analog options and has the advantages of a strategic plan. The use of combined control allows you to significantly reduce the requirements for the overall gain of the main control channel, which greatly facilitates the choice of sequential digital correction. Research results may be of interest to specialists in the field of power electronics, power supply systems of autonomous objects and control systems. References 14, figures 11. Key words: automatic control system, digital controller, external disturbance, plasma, robustness, optimization.
EXPERIMENTAL RESEARCH OF THE MAGNETIZATION AND DEMAGNETIZATION PROCESSES OF THE VECTOR-CONTROLLED INDUCTION MOTOR
Authors:   Otto-von-Guericke-University Magdeburg, Institute for Electrical Energy Systems IESY-FEIT,  University Str., 2, 39106 Magdeburg, Germany, Leidhold R. , Kaluhin D. ,   Otto-von-Guericke-University Magdeburg, Institute for Electrical Energy Systems IESY-FEIT,  University Str., 2, 39106 Magdeburg, Germany, Tolochko O. ,   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, Beresteiskyi Ave., 37, Kyiv, 03056, Ukraine
Published: October 2024

Experimental research of the processes of magnetization and demagnetization for the motionless vector-controlled induction motor was performed, according to a linear law with a variation in the duration of these processes. The methodology of research during which the orthogonal components of the stator and rotor currents were recorded in the rotor flux reference frame, the rotor flux module and the energy of the total losses in the stator and rotor copper is described. The main characteristics and parameters of laboratory equipment and facilities are given. From the point of view of minimizing copper losses, the existence of the optimal duration of the investigated transient processes has been experimentally proven. The results of experimental studies with high accuracy coincide with calculations based on previously obtained analytical dependencies, which confirms the admissibility of the assumptions made during theoretical studies. References 10, figures 7, tables 2.
DEVELOPMENT OF APPARATUS CONSTRUCTION PRINCIPLES FOR THE IMPLEMENTATION OF THE AMPEROSTATIC COULONOMETRY METHOD
Authors:   State Enterprise", Lameko O.L. ,   Scientific and Production Center",   Energoimpuls",   ,  Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Petrenko A.V. ,   State Enterprise "UKRMETRTESTSTANDART", 4, Metrologichna Street, Kyiv, 03680, Ukraine, Melnyk V.G. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine, Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Vasylenko O.D. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine, Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Melnykov O.O. ,   State Enterprise "UKRMETRTESTSTANDART", 4, Metrologichna Street, Kyiv, 03680, Ukraine
Published: October 2024

Тhe methods of amperostatic coulometry and the design of existing equipment for their application are analyzed. A new approach to the design of a coulometric system for the National Amount of Substance Electrochemical Standard is proposed. It consists in combining the means for performing the main operations of the primary amperostatic coulometry method in a single hardware and software unit that performs titration and automated control of this process, as well as receiving and processing the measuring signals required for this. The structure and functional diagram of the measuring unit of a precision automatic coulometry titrator using the latest element base are developed. The appearance and brief description of the created compact measuring system are given. The proposed algorithm for inversion of the measured voltage is described, which made it possible to significantly improve the accuracy of titration current measurement. A new version of median filtration of the measuring signal is presented, which made it possible to increase the accuracy of recording changes in the solution potential and determining the moment of end of the electrochemical reaction. The effectiveness of the developed technical solutions is confirmed by the results of international comparisons, to which references are provided. References 18, figures 4.
USING THE MONTE CARLO METHOD FOR CALCULATING THE ERROR OF THE MEASUREMENT SYSTEM
Authors:   National Technical University «Kharkiv Polytechnic Institute» 2, Kyrpychova Str., Kharkiv, 61002, Ukraine, Baida Ye.I. , Pantelyat M.G. ,   National Technical University «Kharkiv Polytechnic Institute» 2, Kyrpychova Str., Kharkiv, 61002, Ukraine
Published: October 2024

The article considers the Monte Carlo method as one of the possible techniques for calculating the error of a measuring system, which consists of several elements, each of which measures some quantity with its own independent error. Due to its features, the method can be extended to modeling any process affected by random variables. The simplicity of application and the calculation algorithm makes it possible to easily calculate the total error of the system and the probability of its occurrence, while avoiding inflated and unlikely values. The article substantiates the application of the Monte Carlo method for calculating the error of the measuring system, reveals the nature of the distribution of errors, and calculates the value of the error depending on the probability of its occurrence. It is shown that with probability of 0.95 the total error of the system can be taken to be 3 times smaller than the maximum possible error. References 8, figures 2, table 1.
THE DIGITAL-ANALOGUE SIGNAL AMPLIFIER WITH MINIMUM NONLINEAR DISTORTIONS RESEARCH
Authors:   Institute of Electrodynamics National Academy of Sciences of Ukraine, Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Tesik Yu.F. , Karasinskiy O.L. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine, Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Moroz R.M. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine, Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Pronzeleva S.Yu. ,   NGO LLC «ELVIN, Ltd», Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Zaikov M.V. ,   Institute of Electrodynamics National Academy of Sciences of Ukraine, Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine, Bogdan O.M. ,   NGO LLC «ELVIN, Ltd», Beresteiskyi Ave., 56, Kyiv, 03057, Ukraine
Published: October 2024

A method of expanding the operating range of the amplifier is presented, which allows reducing the coefficient of nonlinear distortions of the calibration signal to 0.003%. The structural diagram of the analog-digital amplifier of the input signal to the output, which pro-vides minimal nonlinear distortion of the output signal, is given. The principle of operation of the amplifier is described. The input scal-ing amplifier and output highvolt digital-to-analog converter transmission coefficients dependens diagrams on the input signal ampli-tude are given. The results of experimental studies of the metrological characteristics of the experimental sample of the amplifier are given. References 10, figures 2.
Использование профессиональных фразеологизмов в практическом курсе изучения РКИ чешскими студентами
Authors: Kupcevičová Jelena
Published: October 2024

The present article is devoted to the possibilities of using specialized phraseological expressions in the study of Russian as a foreign language. Such an approach represents a way of expanding students’ vocabulary and it also familiarizes them with the realia, traditions, and customs of the country from the point of view of linguoculturology, expanding the concept of linguistic picture of the world, developing the communicative approach in the study of vocabulary and helping to become familiar with the mentality of native speakers.
Способи представлення лінгвокультурологічної інформації у фразеологічних словниках (на матеріалі ономастичної фразеології)
Authors: Кузь Галина
Published: October 2024

The article analyzes the experience of Slavic phraseological lexicography from the point of view of the representation of the linguistic potential of phraseology, the necessity of developing separate phraseological lexicographic directions - educational and linguisticcultural phraseological lexicography - is substantiated. On the material of onomastic phraseology, the main zones of semantization of phraseological units are distinguished, which should be represented in the corresponding dictionaries.
Features of dry eye disease in women with menopausal syndrome
Authors:   Bogomolets National Medical University, Kyiv, Ukraine, Skrypnychenko I.D. , Tykhonchuk N.A. ,   Bogomolets National Medical University, Kyiv, Ukraine
Published: October 2024

Aim - to study the peculiarities of clinical manifestations of dry eye disease (DED) in women with menopausal syndrome. Materials and methods. We examined 53 women. All patients were divided into 2 groups: The main group included 32 women aged 44 to 57 years with menopausal syndrome. The control group included 21 women aged 35 to 46 years with a normal menstrual cycle. The severity of the clinical course of menopausal syndrome was determined by a gynaecologist. The examination of women included: a test questionnaire for determining the ocular surface disease index, biomicroscopy of the cornea and conjunctiva, and diagnostic tests by Schirmer, Johnson, and Norn. Results. Mild DED was diagnosed in 27 (84.4%) women of the main group, moderate in 5 (15.6%), and severe DED was not observed. Women in the control group were not diagnosed with DED. The most frequent complaints of women were: a feeling of ‘dryness’ in the eyes, which usually increased in the evening; painful reaction to instillation of indifferent eye drops into the conjunctival cavity; poor tolerance to wind, air-conditioned air, smoke; sand, foreign body under the eyelids, burning, and stinging in the eyes. The following objective clinical signs of DED were most often observed: reduced or absent lacrimal menisci at the eyelid margins; slow ‘unraveling’ of the eyelid conjunctiva and eyeball when the lower eyelid is pulled back; local edema of the eyeball conjunctiva with ‘creeping’ to the free edge of the lower eyelid; ‘sluggish’ hyperaemia of the eyelid conjunctiva. In the study of total tear production by Schirmer and basic tear production by Jones, a slight deficit was noted in women with mild DED, and in women with moderate DED, a pronounced deficit of tear fluid was noted. When assessing the stability of the tear film according to Norn, a slight decrease was noted. Conclusions. The women with menopausal syndrome we examined had a deficit in total and basic tear production, decreased tear film stability, and developed subjective and objective clinical signs of mild to moderate DED. Clinical manifestations of DED, along with other menopausal disorders, can affect the quality of life of women. When determining the algorithm for the examination and treatment of these patients, it is advisable for gynaecologists to consider the peculiarities of the clinical course of DED, which may occur in the setting of menopausal syndrome. The research was carried out in accordance with the principles of the Helsinki Declaration. The study protocol was approved by the Local Ethics Committee of the participating institution. The informed consent of the patient was obtained for conducting the studies. No conflict of interests was declared by the authors.
Management of pregnancy with dichorionic diamniotic twins complicated by intrauterine death of one of the fetuses (literature review)
Authors:   Dnipro State Medical University, Ukraine, Dubossarska Yu.О. , Bondarenko L.A. ,   Municipal company «Regional Medical Centre for Family Health» of the Dnipropetrovsk Regional Council, Dnipro, Ukraine
Published: October 2024

Over the past decades, the number of multiple pregnancies has increased significantly due to the use of ovulation induction drugs in the treatment of infertility and the development of assisted reproductive technologies. This increases the relevance of the problem of single intrauterine death (SIUD) in the second or third trimester of pregnancy, which is associated with a significant increase in morbidity and mortality for the surviving twin. Complications include preterm birth, fetal growth restriction, and neurological complications in the surviving fetus. Aim - to review current recommendations for SIUD in dichorionic diamniotic (DCDA) twins to select the most optimal tactics for managing such pregnancies. For the review, we used Ukrainian and international recommendations on the management of multiple pregnancy, dedicated to the problem of SIUD, available on the electronic resources Pubmed, Semantic Scholar and UpToDate. To date, there are no agreed guidelines worldwide on the management of multiple pregnancies complicated by SIUD. The opinion on SIUD in DCDA twins is particularly ambiguous, as the fetuses have separate placentas without vascular anastomoses and the prognosis for the surviving twin is more optimistic than in monochorionic twins. Most of the recommendations for SIUD in DCDA twins suggest a wait-and-see approach and prolongation of pregnancy to the fullest possible gestational age. No conflict of interests was declared by the authors.
Transformasi Pembelajaran Sistem Endokrin Melalui Peran Teknologi Informasi : A Systematic Literature Review
Authors: Ayu Wulandari Ismi , Septi Irwansyah Ferli
Published: October 2024

Pembelajaran materi sistem endokrin sering kali dihadapkan pada tantangan kompleksitas konsep dan kurangnya sumber daya yang memadai dalam pengajaran di kelas. Tujuan dari penelitian ini adalah untuk melakukan komparasi artikel-artikel yang ada menggunakan metode Systematic Literature Review (SLR) dengan fokus pada transformasi teknologi yang dapat mendukung pemahaman konsep sistem endokrin. Metode SLR dengan teknik pemetaan diagram PRISMA ini digunakan untuk mengidentifikasi dan mengevaluasi artikel-artikel terkait dari berbagai sumber literatur. Hasil dari tinjauan ini menunjukkan bahwa ada peningkatan pemahaman konsep pada peserta didik dalam penggunaan teknologi dalam konteks pembelajaran sistem endokrin. Implikasi dari temuan ini adalah bahwa integrasi teknologi dalam pembelajaran sistem endokrin dapat menjadi strategi yang efektif dalam meningkatkan kualitas pengajaran dan pembelajaran di kelas. Dengan memanfaatkan sumber daya teknologi yang tersedia, guru dapat memberikan pengalaman pembelajaran yang lebih dinamis dan menarik, sementara peserta didik dapat mengakses materi dengan lebih interaktif dan mendalam. Kesimpulannya penelitian ini menyoroti pentingnya transformasi teknologi dalam konteks pendidikan, khususnya dalam memahami konsep sistem endokrin. Oleh karena itu, langkah-langkah strategis perlu diambil untuk memfasilitasi integrasi yang lebih luas dari teknologi dalam pengajaran dan pembelajaran di kelas.
A critical review on additive manufacturing of sustainable NFRCs: processing and applications
Authors: Tyagi Ankit , Meena Amit , Bhandari Manish , Shahid Mohd , Gupta Bachchu Lal , Meena SL
Published: October 2024

In present era researchers and scientists are rapidly acknowledging the importance of environment friendly procedures, goods, and the recycling of agricultural waste. Therefore, the utilization of natural resources and production of natural fiber reinforced composites (NFRC‘s), is increasing considerable interest among scientists. Although NFRC‘s have promising application potential, certain issues relating to materials and processes must be resolved to attain long-term stability and performance. The current study serves as a first introduction to the many categories and advantages of NFRC‘s and additive manufacturing, accompanied by a concise explanation. Furthermore, the present article provided a concise overview of characteristics and types of NFRC‘s, processing and recent challenges of implementing NFRC‘s in the field of additive manufacturing (AM). Finally, recent challenges encountered in processing NFRCs using additive manufacturing are briefly introduced. The Future scope of AM for sustainable NFRC‘s is very promising, especially in terms of enhancing environmental sustainability, improving efficiency, and enabling novel applications.
I-mfa, Mesangial Cell TRPC1 Channel, and Regulation of GFR
Authors: Tao Yu , Liu Muyi , Siebert Garland , Das-Earl Paromita , Ibrahim Deena , Crowe Nicole , Zheng Suilan , Ma Rong
Published: October 2024

Key Points

I-mfa is a multifunctional cytosolic protein and its function in kidney is unknown.

The major finding in the present study was that I-mfa promoted glomerular filtration rate in both male and female mice.

I-mfa suppressed contractile function of both human and mouse glomerular mesangial cells by decreasing TRPC1 channel protein abundance.

Background

Inhibitor of MyoD family A (I-mfa) is a cytosolic protein. Its function in the kidney is unknown. The aim of this study was to examine the regulatory role of I-mfa on GFR.

Methods

GFR was measured by transdermal measurement of fluorescein isothiocyanate–sinitrin clearance in conscious wild-type (WT) and I-mfa knockout (KO) mice. Cell contractility was assessed in a single human or mouse mesangial cell. Single-cell RNA sequence, Western blot, and Ca2+ imaging were used to evaluate the effects of I-mfa on transient receptor potential canonical (TRPCs) at messenger, protein, and functional levels in mesangial cells.

Results

In KO mice, GFR was significantly lower than that in WT mice. In WT mice, knocking down I-mfa selectively in mesangial cells using targeted nanoparticle/small interfering RNA delivery system significantly decreased GFR. In human mesangial cells, overexpression of I-mfa significantly blunted the angiotensin II (Ang II)-stimulated contraction, and knockdown of I-mfa significantly enhanced the contractile response. Consistently, the Ang II–induced contraction was significantly augmented in primary mesangial cells isolated from KO mice. The exaggerated response was restored by reintroducing I-mfa. Furthermore, single-cell RNA sequence showed an increase in trpc1 messenger, and Western blot showed an increase in TRPC1 protein abundance in I-mfa KO mouse mesangial cells. TRPC1 protein abundance was decreased in human embryonic kidney cells overexpressing I-mfa. Ca2+ imaging experiments showed that downregulation of I-mfa significantly enhanced Ang II–stimulated Ca2+ entry in human mesangial cells. Finally, TRPC1 inhibitor Pico145 significantly blunted Ang II–induced mesangial cell contraction.

Conclusions

I-mfa positively regulated GFR by decreasing mesangial cell contractile function through inhibition of TRPC1-mediated Ca2+ signaling.
Structuring the personal in Life-Work
Authors: Cornall Fraser
Published: October 2024

This paper investigates my practice research Life-Work (Cornall,2022) and offers a reworking of its original exegesis. The aim is to reexamine the creation of the work in 2020, emphasising its practical aims that were missed when I presented the film at a conference. The discovery is an idiosyncratic attempt to create a personal structural film and respond to Hollis Frampton’s (nostalgia) (1971). Working from Barbara Bolt’s material handling (2010) I argue this personal discovery is important research for reinstating practical knowing.
Representaciones sociales, imaginarios y territorialidades construidas por las comunidades próximas a megaproyectos hidroeléctricos en Bolivia
Authors: Kunstek-Salinas Luis-Camilo , Phillips-Pedriel Luis-Alejandro , Roque-Miranda Abigail , Rojas-Stambuk Valentina-Ariana
Published: October 2024

Introducción: para una evaluación de los impactos generados por proyectos de desarrollo en comunidades rurales de Bolivia, es de suma importancia la incorporación de la dimensión social desde un enfoque cualitativo y participativo que permita capturar las dinámicas territoriales y la reconstrucción de la memoria histórica desde las comunidades y su relación con los proyectos de desarrollo. Objetivo: determinar las representaciones sociales, imaginarios y territorialidades construidas por las comunidades próximas a los megaproyectos hidroeléctricos, en torno a la presencia de proyectos de desarrollo y su relación con los proyectos de vida familiar y comunal. Metodología: esta investigación ha sido realizada mediante un enfoque transdisciplinario, a partir aproximaciones cualitativas, priorizando el diálogo con las comunidades. Se han revisado fuentes documentales, hemerográficas, además de la realización de talleres comunales, entrevistas grupales, entrevistas individuales y mapas parlantes. Conclusiones: una evaluación que busque reflejar el impacto de los proyectos de desarrollo en las comunidades circundantes debe contar con un enfoque participativo. Debe incorporar un enfoque cualitativo que capture aspectos subjetivos y narrativos.  Es necesaria la ampliación de los indicadores tradicionales, incluyendo dimensiones sociales como el lenguaje, la creatividad, la memoria colectiva y las relaciones comunitarias.
The Mediterranean-Pontian Argiope bruennichi (Scopoli, 1772) in Poland – overview of traits favouring range expansion
Authors: Dobrzycka-Krahel Aldona
Published: October 2024

Due to climate warming the distribution of Southern European species has extended to the north in recent years. Currently, Argiope bruennichi (Scopoli, 1772) is distributed over the whole territory of Poland. Data on the current distribution of A. bruennichi in Poland  and on its occurrence over the years from the GBIF (Global Biodiversity Information Facility) and from the zbioryprzyrodnicze.web.amu.edu.pl database were analysed. Records and habitat preferences by the wasp spider especially in the northernmost parts of Poland were discussed. Observing colonization by the the Mediterranean-Pontian species the areas located to the north of the native distributional region provides a unique opportunity to understand traits that facilitate its range expansion. The study is also a collection of traits that facilitate range expansion of the wasp spider.
Information of Difficulties Faced by Visually Impaired Students in the Learning Process at School
Authors: Sevim Bahadır , Oğuzhan Bahadır
Published: October 2024

This study aims to identify the challenges encountered by visually impaired students during their learning process at school. The sample of the study consists of all students (25 students) studying at Ertuğrul Gazi School for the Visually Impaired in Onikişubat district of Kahramanmaraş province in Turkey, covering grades 5 to 8. The study was conducted during the 2021 academic year, utilizing the qualitative research method with interviews as the primary data collection technique. Through the analysis of the data obtained from the interviews, it was revealed that visually impaired students face difficulties in the learning process at school, primarily stemming from the inadequacy of the school’s physical conditions. The most significant challenge among these difficulties is the lack of auditory cues and routes. Additionally, learning difficulties arise from the materials used in classes and the implementation of measurement and evaluation practices for visually impaired students.
Data-Campaigning on Facebook: Do Metrics of User Engagement Drive French Political Parties’ Publications?
Authors: Figeac Julien , Neihouser Marie , Le Coz Ferdinand
Published: October 2024

Research on data-driven campaigning has mostly focused on the strategies of central campaign teams. However, there is a lack of evidence explaining how parties and supporters use data-driven campaigning techniques to organise their social media campaigning. Do user engagement metrics influence the choice of campaign themes by encouraging political parties to concentrate their communication on issues that are most liked, commented on, and shared? Our study focuses on the use of Facebook by French political parties and their supporters during the 2022 presidential election campaign. We conducted a supervised content analysis based on machine learning to examine their Facebook posts (n = 17,060). Our results show that the issues prioritized by parties on Facebook may be different from those that are most prominent in their broader communications. In most cases, however, these themes are not chosen based on user engagement, even for parties that claim to have developed their base through digital channels. Instead, the choice of themes seems influenced by more traditional campaign strategies, such as the desire to capture the electorate of their closest rival. In our conclusion, we discuss the implications of these findings for the adoption of data-driven campaigning in digital election communication across Europe.
Are Certain Types of Microtargeting More Acceptable? Comparing US, German, and Dutch Citizens’ Attitudes
Authors: Bon Esmeralda , Dommett Katharine , Gibson Rachel , Kruikemeier Sanne , Lecheler Sophie
Published: October 2024

Much of the research on political microtargeting has focused on growing public concerns about its use in elections, fuelling calls for greater regulation or even a ban on the practice. We contend that a more nuanced understanding of public attitudes toward microtargeting is required before further regulation is considered. Drawing on advertising psychology research and the results of academic analyses into microtargeting, we argue that individual concern, and by corollary, acceptance of microtargeting will vary based on socio-demographic characteristics and political orientations, and the type of personal data used. We hypothesise that microtargeting that relies on observable or publicly accessible personal information will be more accepted by voters than that which uses unobserved and inferred traits. We test these expectations and the expected variance of public acceptance by individual characteristics using comparative survey data from the US, Germany, and the Netherlands. We find that across countries and socio-demographic groups, not all microtargeting is considered equally problematic. For example, whereas the use of age and gender is generally deemed acceptable, the use of sexual orientation is not, and right-leaning individuals are more accepting than those who lean left. Additionally, overall, the US is more accepting of microtargeting than Germany or the Netherlands. Thus, we find that not all microtargeting is considered equally problematic across countries and socio-demographic groups. We conclude by calling for a more contextualised debate about the benefits and costs of political microtargeting and its use of “sensitive” data before the expansion of current regulation.
Hardware Implementation of Fully Controlled Bridge Rectifier with Rapid Control Prototyping Approach
Authors: Yıldıran Nezihe
Published: October 2024

In industrial applications, rapid prototyping of digital controls is important in terms of time, cost, and getting easier design steps. Especially the complexity of different power electronic converter circuits and their necessity of providing
various operating conditions make digital control inevitable. However, developing a digital control system has many unknown details. In-the-loop simulation techniques evolved to simplify this stage during the last few decades. In this paper, a fully controlled bridge rectifier is designed and implemented by using a rapid control prototyping approach; its steps are accelerated with processor-in-the-loop and hardware-in-the-loop tests. Launchpad F28379D from Texas Instruments is used as an interface between the designed rectifier hardware circuit and MATLAB/Simulink Embedded Coder platform. Additionally, a driver control board is developed to provide switching signals and analog to digital
measurements. The performance of the system is experimentally tested on a 500W rectifier prototype with a closed loop PI controller for voltage regulation at different parametric variations.
Relation between Self-Focused Attention and Sensitivity to Distortions of Own Face
Authors: Bocharov A.V. , Savostyanov A.N. , Rudych P.D. , Saprygin A.E. , Tamozhnikov S.S. , Knyazyev G.G.
Published: October 2024

90 volunteers (62 women), aged from 18 to 38 years participated in an experimental task of own face recognition in morphed images. The aim of the study was to examine the test-retest reliability of self-face recognition test scores, the concurrent validity of test scores with self-focused attention, depression, anxiety, negative expressivity and personality, and a comparison of test scores by participant sex. An increased sensitivity to distortions of own face on retesting was found. Females were more sensitive to distortions of own face. Extraversion was positively correlated with self-face recognition test scores. The scales of public and private self-consciousness and negative expressivity correlated negatively with measures of the self-face recognition test, suggesting that people with high scores on these scales are more sensitive to facial distortions and refuse to recognize themselves in distorted images.
Dynamics of Mental Regulation of Psychological States in Various Conditions of Educational Activity of Students
Authors: Prokhorov A.O. , Chernov A.V. , Yusupov M.G. , Basina I.S.
Published: October 2024

The article examines the dynamic features of the mental regulation of students’ psychological states in varying conditions of educational activity. The theoretical basis of the study is the concept of mental regulation of psychological states, according to which the mental regulatory system performs a control function in relation to the states of personality. As a result of an empirical study, shown the involvement specificity of the mental regulation indicators in the changes of psychological states’ characteristics at various stages of the three main forms of educational activity of students (lecture, seminar and exam). Established that indicator of mental regulation (self-attitude, life-meaning orientations, and reflection) cause on average 25% of the variation in the intensity of psychological states in the conditions of seminars and lectures. The greatest involvement and stability of correlations between psychological states and indicators of mental regulation observed at the beginning and the end of seminars and semester exams. As the intensity of the learning situation increases (from lectures to exams), the involvement of self-attitude indicators in the regulation of states increases. Self-attitude indicators come to the fore in the dynamics of mental regulation of psychological states; they are associated with the intensity of states at all stages of educational activity. In the context of seminar classes, the leading indicators in the relationships with psychological states are “self-leadership” and “reflected self-attitude” and in the situation of passing exams — “self-acceptance”. Teachers and educational psychologists who are developing technologies that increases the effectiveness of learning, which are based on the internal resources of students, including the ability to purposefully change their state in accordance with the dynamics of educational activity, can use the results of the study.
Dynamics of Heart Rate Variability in the Reflexivity Task at Different Levels of Anxiety
Authors: Sizikova T.E. , Leonov S.V. , Polikanova I.S.
Published: October 2024

The aim of this study was to test the hypothesis of the effectiveness and adequacy of using reflection to reduce anxiety levels in groups with high and low anxiety. There is evidence in the literature of a negative correlation between heart rate variability (HRV) and anxiety levels, as well as also evidence of the positive influence of reflection and self-reference on HRV. The novelty of our study lies in the establishment of the validity of the author's reflexive projective methodology of imago-reflexive resource (МIRR) in solving the problems of anxiety reduction. The work is a contribution to the confirmation of the role of reflexion in the regulation of the autonomic nervous system. The study involved 117 participants (average age 25±8 years). The sample was divided into groups with low and high anxiety, as well as experimental and control subgroups. The experimental subgroups underwent the author's method MIRR, aimed at activating reflection. Control groups performed tasks related to academic discipline - standard cognitive load. HRV recording was conducted before and after task completion. The results showed consistency with the literature. Specifically, the high anxiety group exhibited lower HRV. Additionally, it was demonstrated that the reflective MIRR method leads to activation of the parasympathetic regulatory circuit of the autonomic nervous system. The greatest shifts were observed in cases of high anxiety. In cases of low anxiety, the reflection process is characterized by the modulating effects of the vagus nerve on the cardiovascular system. Standard cognitive load led to activation of the sympathetic regulatory circuit. Thus, the MIRR method can be used as a tool to reduce anxiety levels.Further research is aimed at assessing the sustainability of the obtained results of anxiety reduction. It is promising to analyze the effectiveness of reflexive techniques in the technologies of psychological assistance to "at-risk" population groups.
Machine Learning-based Integration Strategies for Oracle EPM and ERP Systems
Authors: Thiyagarajan Vikramrajkumar
Published: October 2024

This paper presents recent progress in machine learning techniques to extend integration between Oracle Enterprise Performance Management (EPM) and Enterprise Resource Planning (ERP) systems. Based on an extensive review of existing challenges in the current integration and newly developed technologies within ML, it proposes new strategies in automated data mapping and intelligent workflow orchestration and predictive analytics. Our findings clearly reflect better consistency in the process of integration for efficiency, precision, and scalability by implementing machine learning algorithms in schema matching, anomaly detection, and natural language processing related to data query operations.