bluuebunny/crossref_metadata_2025 huggingface dataset:
Searching for optimal parameters of finishing antifriction non-abrasive treatment of cylinder liners of motor tractor engines
Authors:   Central Ukrainian National Technical University, Shepelenko Ihor , Chernovol Mykhailo ,   Central Ukrainian National Technical University, Leshchenko Serhii ,   Central Ukrainian National Technical University, Krasota Michael ,   Central Ukrainian National Technical University
Published: April 2024

This paper presents the results of research aimed at improving the quality of antifriction coatings obtained by finishing antifriction non-abrasive treatment (FANT). It has been previously established that the formation of an antifriction coating during FANT largely depends on the technological parameters that determine the conditions of contact between the tool and the surface being treated. The study of the peculiarities of surface contact, their regularities, as well as the main parameters of the FANT process, makes it possible to improve the quality of the antifriction coating, and therefore the operational properties of the part. The aim of the presented research is to evaluate the influence of technological factors of the FANT process on the quality of antifriction coatings and to obtain their rational values. The indicators of the quality of the antifriction coating are its continuity, surface roughness and mass transfer of the antifriction material. The optimisation parameters are the main modes of FANT and the geometrical characteristics of the initial surface to be treated. To determine the influence of the selected factors on the indicators characterising the quality of the antifriction coating, a central composite plan matrix was implemented, which allowed us to obtain mathematical models of the influence of factors on the adopted response functions. The processing of the experimental data was carried out using the STATISTICA 12.0 software package. As a result of the multifactorial experiment, statistical models were obtained that allow assessing the impact of the studied factors on the optimisation criteria. The significance of the obtained coefficients was checked using the Student's criterion, and the adequacy of the obtained equations was checked using the Fisher's criterion. A detailed analysis of the Pareto map and tabular results of the experiment allowed to establish the influence of the research factors on the optimisation criteria. The obtained mathematical models made it possible to determine the optimal combination of technological factors that ensure the quality of the coating, as well as to establish the rational values of FANT modes and geometric characteristics of the output surface.
Ways to increase the indicators of diesel engines of tractors and cars in the conditions of ordinary operation
Authors:   Dnipro State Agrarian and Economic University, Pugach Andrii , Aulin Viktor ,   Central Ukrainian National Technical University, Melnychenko Vasyl ,   Dnipro State Agrarian and Economic University, Derkach Oleksii ,   Dnipro State Agrarian and Economic University, Teslia Volodymyr ,   Ternopil National Technical University named after Ivan Pulyu
Published: April 2024

It has been established that when the diesel engine is overloaded, the smokiness of the exhaust gases increases. This indicator is affected by the configuration of the unit, incorrectly selected operating mode, existing violations in the regulation and operation of the fuel equipment. The results of a comparative analysis of ways to increase the indicators of domestic and foreign-made diesel engines of tractors and cars, which are in the conditions of ordinary operation of Ukrainian enterprises of various forms of ownership, are presented. Changes in fuel efficiency indicators and environmental indicators of diesel tractors and machine-tractor units were analyzed. As an example, the operation of the ND-22/6B4 high-pressure fuel pump, the SMD-62 diesel engine, and the T-150K tractor was considered. Research and observation of the technique was carried out over a long period. The historical aspect of the development of this topic is given to show the dynamics and focus attention on more effective ways of increasing the indicators of tractors and cars in ordinary conditions of operation and their use. The mentioned questions about the analysis of the design and functioning of modern tractors of foreign production are considered. It was found that the increased smoke of exhaust gases also occurs when the diesel engine is boosted by excessive fuel supply. To reduce smoke, it is possible to use modernized regulators of high-pressure fuel pumps. Methods of regulating the number of revolutions of auto-tractor diesels are proposed by introducing into the design of the fuel pump regulator two-mode, all-mode and single-mode regulators with correction of intermediate characteristics in pairs or jointly with a smoke limiter and a negative corrector.
Determination of the optimal point of connection of the solar power plant to the electrical network by computer simulation
Authors:   Central Ukrainian National Technical University, Plieshkov Petro , Zinzura Vasyl ,   Central Ukrainian National Technical University, Plieshkov Serhii ,   Central Ukrainian National Technical University, Soldatenko Valentyn ,   Central Ukrainian National Technical University
Published: April 2024

The purpose of this study is to minimize the negative impact of the solar power plant on the value of the steady voltage deviation and the level of electricity losses by determining the optimal place for its connection to the distribution network. Currently, quite a large number of methods of optimal placement of renewable sources of electricity in electrical networks have been developed. However, most of them either do not fully take into account the multifunctional influence of renewable energy sources on the parameters of the electric network regime, or are quite difficult to use. In order to solve the problem of optimal placement of renewable sources of electricity in electric networks, it is proposed to use the method of computer simulation modeling. The essence of this method is to determine the optimal place for connecting a renewable energy source to the electrical network based on the analysis of the results of computer simulation modeling of network mode parameters. This approach is the most acceptable in the case of connecting a solar power plant of average power to the electrical network of an industrial enterprise. The developed computer simulation model of a distribution electric network with a solar power plant allows for the research of network mode parameters, including the determination of the level of active power loss in network elements and the level of steady voltage deviation. The specified computer simulation models of the distribution electric network with a solar power plant made it possible to determine the optimal place for connecting the solar power plant based on the values of power losses in the elements of the electric network at the level of the established voltage deviation. The results of computer modeling of an electrical network with a solar power plant confirmed the need to take into account not only the values of the established voltage deviation, but also the amount of electrical energy losses in the network elements in the process of choosing a place to install a solar power plant. The results of the research can be used in solving the problems of determining the place of connection of a medium-power solar power plant to the electrical network of an industrial enterprise.
The algorithm for analysis and evaluation of educational programs curricula
Authors: Zykova T. V. , Kytmanov A. A. , Khalturin E. A. , Vaynshteyn Yu. V. , Noskov M. V.
Published: April 2024

It is important for various participants of the educational process to be able to assess the quality of the educational program, its balance, and compliance with the stated educational results. One of the ways to analyze and evaluate the curriculum of an educational program of higher education can be the algorithm presented in the article, implemented in C++. It allows to calculate various statistical characteristics of the curriculum (for example, the number of educational units (disciplines) and their labor intensity in credits), as well as the relative contribution of an educational unit to the formation of competencies (learning outcomes).The comparative assessment of the main calculation indicators for several curricula of educational programs is implemented as a separate program module. The algorithm implements an approach that allows presenting the curriculum data in a convenient visualization form — as a weighted undirected graph, the vertices of which represent the disciplines of the curriculum, and the edges interdisciplinary links, demonstrating the participation of disciplines in the formation of the same competencies. Visualization of this representation was carried out using the Gephi software package.The program implementation of the algorithm proposed in the article may be of practical interest to scientific and pedagogical staff and administrative and managerial personnel of educational institutions of higher education
Cognitive modeling of university management support as a human-machine system
Authors: Akperov G. I.-o , Grigoriev S. G. , Işiklar A. , Khramov V. V. , Grigorieva M. A.
Published: April 2024

On the example of a university, the article discusses the possibilities and features of using a cognitive approach for modeling weakly (fuzzy) structured ergatic (human-machine) systems and their management. A methodology for constructing and analyzing a cognitive model of educational institution management based on fuzzy cognitive maps is proposed and investigated. Solutions based on the use of mathematical and software tools of the decision support system (DSS) “IGLA” on fuzzy models are described. The results of their application in the tasks of management support and modeling of weakly (fuzzy) structured organizational, technical, and ergatic systems are discussed.New approaches to the study of fuzzy information objects and results are outlined. The study develops a methodology for increasing the structural level of the university management model, including the management of all three missions of the university: educational, research, and social.The research materials presented in the article can be useful for studying the dynamics of complex organizational and technical systems. The article addresses scientists, university professors, graduate students, and undergraduates
Content analysis of university development strategies in China within the framework of the concepts of “University 4.0” and “educational ecosystem”
Authors: Vladimirov I. V. , Wang P. , Zhao W. , Gasanova R. R.
Published: April 2024

Development planning is a prerequisite for achieving the objectives. The strategic plan of university development gives an opportunity not only to understand how the authors of the document see its future but also to get acquainted with the plan of successive actions to achieve the set goals. The analysis of the development strategies of the best universities in China provides rich material for studying the plans for the structural and functional transformation of universities in modern conditions.Based on the QS World University Rankings, 12 leading universities in China, including Hong Kong and Taiwan, are identified. The content analysis of the development strategies of these universities from the position of the concept of University 4.0 and attributes of concept educational ecosystem was carried out. The data is structured in the form of tables and diagrams, based on the analysis of which following conclusions are made: all 12 universities mention in their development strategies all functional components of the University 4.0 concept. All components of the educational ecosystem concept are noted in all 12 universities with different degrees of expression. This suggests that all the universities under consideration (before mid and/or late 2020s) will turn into an educational ecosystem, as well as move to a new stage of development — university 4.0, setting a general trend of development for other universities in China
RideConnect : The Future of Auto Driver Efficiency
Authors: Gajanan Bhusare  , Dinesh Bendre  , Girish Bhosale  , Avdhoot Walunjkar
Published: April 2024

This research paper proposes RideConnect, a mobile application designed to transform urban transportation by connecting commuters with auto-rickshaw drivers in real-time. The project addresses challenges faced by traditional taxi booking systems, including extended waiting times and suboptimal route planning, by leveraging advanced technologies such as HTML, CSS, JavaScript, React, Node.js, APIs, and databases. Key objectives include optimizing waiting times, implementing route optimization algorithms, ensuring secure payment gateways, and fostering a two-way rating system. RideConnect aims to revolutionize the rick-shaw booking experience, offering users a seamless and efficient transportation solution while creating economic opportunities for auto-rickshaw drivers.
Discussion of Black Language Within the Context of Bilingual Pedagogy
Authors: Sharp Steven
Published: April 2024

The author examines some of the critical issues raised by Baker-Bell (2020a) about language education in the United States. The challenges associated with linguistic justice are related to a history of linguistic discrimination in the United States, which many sources have documented and affected many different linguistic backgrounds and peoples. This research inspired her to develop an antiracist Black language pedagogy that assists students in understanding their position in white linguistic hegemony. The author evaluates some of the ideas of Black language pedagogy, explicitly focusing on the requirements of administrators in K-12 education. Additionally, the author contrasts Baker-Bell’s ideas to translanguaging and how heteroglossic pedagogies are used to develop bilingual and bicultural students similar to the concepts of García (2009). The author then discusses how the ideas of heteroglossic language pedagogies, Black language pedagogy, and translanguaging could inform each other.
Gambaran Kualitas Fisik Lingkungan pada Ruang Dosen Gedung B PSDKU Universitas Airlangga
Authors: Yhuwono Yogi , Puspikawati Septa Indra
Published: April 2024

Kondisi fisik lingkungan ruang yang tidak baik dapat menimbulkan risiko gangguan kesehatan berupa Sick Building Syndrome. Ruang dosen berpotensi mengalami masalah kualitas fisik lingkungan yang berdampak pada penghuninya karena banyak terdapat perabotan, tumpukan buku, perkakas, serta tingginya aktivitas perkantoran.Tujuan penelitian ini adalah untuk mengukur kualitas fisik lingkungan dan menggambarkan karakteristik ruang dosen gedung B PSDKU Universitas Airlangga di Banyuwangi. Penelitian ini merupakan penelitian observasional yang dianalisis secara deskriptif dengan pengumpulan data primer berupa pengamatan karakteristik ruangan, pengukuran temperatur, kelembaban, pencahayaan, dan kebisingan. Hasil penelitian menunjukkan bahwa pencahayaan (130,12 lux), kebisingan (52,18 dBA), dan kelembaban (50,6%)telah memenuhi persyaratan baku mutu, sedangkan parameter temperatur sebesar 300C melebihi dari persyaratan sesuai regulasi yaitu 18-280C. Disarankan melakukan perbaikan temperatur ruangan dengan pengendalian melalui penambahan ventilasi ruangan, baik alami maupun buatan.
IDENTIFIKASI BAKTERI ESCHERICHIA COLI(E.coli) DAN VIBRIOsp PADA IKAN ASAP DI KOTA TERNATE
Authors: Amra Nizmawaty , M. Ali Nur , Abdul Hamid Fahmi
Published: April 2024

Ikan merupakan salah satu komoditas pangan yang mempunyai sifat mudah mengalami kerusakan (perisable), karena kandungan zat gizi seperti protein (18-30%) dan air yang cukup tinggi (70-80%) dimana merupakan media yang baik bagi perkembangan bakteri pembusuk maka ikan perlu dilakukan penanganan.Pengawetan ikan dengan cara pengasapan dapat mengurangi pertumbuhan bakteri. Beberapa bakteri yang dapat menyebabkan keracunan dan dicurigaiterdapat pada ikan asap antara lain bakteri Escherichia coli (E.coli) dan Vibriosp.Penelitian ini bertujuan untuk mengidentifikasi bakteri E.colidan VibrioSppada ikan asap diKota Ternate. Jenis penelitian yang digunakan Deskiptif dengan pendekatancross sectional.Populasi penelitian ini adalah seluruh pedagang yang menjual ikan asap di Kota Ternate.Sampel dalam penelitian ini adalah ikan asap yang di jual di Kota Ternate yang bersumber dari Kota Ternate, Kota Tidore dan Halmahera Selatan sebanyak 10 sampe dengan teknik Simple RandomSampling. Hasil analisis menunjukkan bahwa,sebanyak 6 sampel (60/%) dinyatakan negatif mengandung E.coli dengan angka paling memungkinkan (APM/g) <3. Berdasarkan sumber sampel S1, S4, S6, S9 berasal dari Kota Ternate, sedangkan Sampel S5 dan Sampel S7 berasal dari Kota Tidore dan Kabupaten Halmahera Selatan. 4 sampel (40%) positif mengandung E.colidengan angka paling memungkinkan (APM) bervariasi yaitu sampel S2 dengan APM 240/gram, sampel S3 dengan APM 150/gram, sampel S8 dengan APM 1100/gram dan sampel S10 dengan APM 43/gram. Sedangkan untuk uji VibrioSpseluruh sampel(100%)tidak mengandung bakteri VibrioSp. Disimpulkan bahwa 6 sampel dinyatakan negatif mengandung E.coli, 4 sampel positif mengandung E.coli dan seluruh sampel tidak mengandung bakteri VibrioSp.
Наньєва М. І. Конкурентоспроможність на ринку праці: практикум для здобувачів вищої освіти 2-го курсу факультету адвокатури та антикорупційної діяльності Національного університету «Одеська юридична академія».
Authors:   Національний університет «Одеська юридична академія», Наньєва М. І.
Published: April 2024

Практикум призначений для здобувачів вищої освіти, що отримують ступінь бакалавра у галузі знань 08 «Право» зі спеціальності 081 «Право», буде корисним для підготовки здобувачів, що отримують освіту з правової та управлінських спеціальностей. Практикум відповідає програмі навчальної дисципліни «Конкурентоспроможність на ринку праці». В практикумі представленотематичний план курсу, завдання, тестові завдання, питання для самоперевірки, питання для обговорення з дисципліни, питання до заліку, а також список рекомендованої літератури.
Василенко М. Д. Адміністрування та захист баз та сховищ даних : метод. вказів. (для бакалаврів галузі знань 12 «Інформаційні технології», спец. 121 «Інженерія програмного забезпечення» факультету кібербезпеки та інформаційних технологій) [Електронне видання]
Authors:   Національний університет «Одеська юридична академія», Василенко Микола Дмитрович , Слатвінська Валерія Миколаївна
Published: April 2024

Методичні вказівки з курсу «Адміністрування та захист баз та сховищ даних» розроблено відповідно до навчального плану, вони складаються з навчальної програми курсу, методичних рекомендацій із проведення практичних занять, питань для самоконтролю, завдань для самостійної роботи, переліку рекомендованих джерел. Вивчення дисципліни «Адміністрування та захист баз та сховищ даних» надасть знання і навички здобувачам щодо ефективного управління базами даних, забезпечення їх безпеки, вчасного резервного копіювання та відновлення даних. Матеріали призначені для здобувачів факультету кібербезпеки та інформаційних технологій Національного університету «Одеська юридична академія», які навчаються за спеціальністю 121 «Інженерія програмного забезпечення»
Öğretmenlerin İş Yaşam Kalitelerinin Çeşitli Değişkenler Açısından İncelenmesi
Authors: Bozdağ Zafer , Ağalday Bünyamin
Published: April 2024

Eğitim kurumlarının amacıyla toplumun gelişimi büyük ölçüde örtüşmektedir. İş yaşam kalitesi, eğitim kurumlarının amaçlarının gerçekleştirilmesinde, öğrenci başarısının yükseltilmesinde ve nihai olarak eğitim kalitesinde önemli bir role sahiptir. Bu çalışmada öğretmenlerin iş yaşam kaliteleri çeşitli değişkenler açısından incelenmiştir. Tarama modelinde tasarlanan çalışmanın örneklemini, 125 kadın ve 209 erkek olmak üzere toplam 334 öğretmen oluşturmaktadır. Veri toplamak amacıyla “Kişisel Bilgi Formu” ve “İş Yaşam Kalitesi” ölçeği kullanılmıştır. Elde edilen verilerin analizi için bağımsız örneklem t testi, betimsel istatistikler, Kruskal Wallis H testi ile pearson korelasyon analizi kullanmıştır. Analizler sonucunda öğretmenlerin genel olarak iş yaşam kalitelerinin yüksek düzeyde olduğu belirlenmiştir. Kadınların genel iyi olma düzeyleri erkeklerinkinden daha yüksek; lisansüstü eğitim mezunu öğretmenlerin lisans mezunu öğretmenlere göre işi kontrol edebilme, genel iyi olma ve iş yaşamında stres yaşamama düzeyleri daha yüksek; orta ekonomik düzeye sahip öğretmenlerin düşük ekonomik düzeye sahip olanlara göre çalışma koşulları, iş kariyer memnuniyeti, genel iyi olma ve genel iş yaşam kalitesi düzeylerinin daha yüksek olduğu saptanmıştır. Araştırma sonuçları literatür kapsamında tartışılmış ve çeşitli öneriler sunulmuştur.
A Review of Introduction of Automated and Robotic Systems for Optimization of Logistic Processes within Projects and Programs
Authors:   National Transport University, Khalatska Ilona I. , Koval Zhenia А. ,   National Transport University
Published: April 2024

In today’s world, innovations in project management are becoming a determining factor for achieving competitive advantages. This article discusses the topical issue of innovative methods of process management in projects and programs, focusing on their impact on logistical aspects. The main goal is to unleash the potential of automated and robotic systems to optimize and increase the efficiency of logistics processes in projects. The article highlights the key aspects of the implementation of automation in logistics processes, in particular the speed and accuracy of tasks, optimization of routes and planning, reduction of errors and costs, as well as ensuring continuity of work. It is noted that these aspects can significantly improve the productivity and efficiency of logistics processes, contributing to the achievement of the set goals of projects and programs. Examples of successful implementation of automated and robotic systems in real projects are provided. In particular, the implementation of a tracking system in the company SystemGroup is considered, automation of warehouse operations in Forstor Industry and the use of automated vehicles in logistics networks. These examples illustrate the concrete benefits and successes that can be achieved through the latest technologies in logistics projects. However, it is emphasized that the benefits of using automation and robotics include increased productivity, reduced errors, and increased logistics management capabilities. Innovative methods of process management in projects and programs, especially taking into account logistical aspects, are becoming an important factor in achieving high efficiency and competitiveness.
Social Media Filtered Images as Carnivalesque Resistance
Authors: El-kssiri Maryam , Elalamy Youssouf Amine
Published: April 2024

A great many may perceive social media filters or lenses as ridiculous and filtering selfies as an act of sheer vanity or blind imitation of glamorous social media influencers. However, from within this pervasive contemporary digital phenomenon, resistance to dominant representations or subversion of societal expectations can be discerned. In other words, filters and filtered self-images are by no means simply and exclusively reproductions of socially idealized beauty standards and pre-existing cultural norms. Some filtered representations often disrupt the effect of the bandwagon from within, using the very digital resources provided by social media and filter applications. In this article, we approach this rather unexplored kind of filtered images from Mikhail Bakhtin’s perspective, precisely employing his conception of the carnivalesque. Using this framework, the aim is to explore the potential subversiveness of certain playful social media filtered representations. Some social media filtered images while satiric and playful also constitute powerful statements with regards to identity politics and the current status quo.
Determinants of tax revenue performance in South Africa for the period 1990-2018
Authors: Mmbulaheni Asiashu Given , Nyamazunzu Zvikomborero , Dagume Mbulaheni Albert
Published: April 2024

This study investigates the determinants of tax revenue performance in South Africa using time series data from 1990–2018. The study uses Augmented Dickey Fuller and the Kwiatkowski–Phillips–Schmidt–Shin (KPSS) tests to test stationarity in time series, while Johansen co-integration and error correction models identify long-run and short-run dynamics among variables. The results of the study revealed that Gross Domestic Product (GDP) per capita, foreign direct investment, and trade openness are statistically significant and positively related to tax revenue performance. Unemployment was found to be statistically significant but also negatively correlated with tax revenue performance, while inflation was found to be negative but not statistically significant. The research's diagnostic tests confirmed the validity of the study model, revealing no serial correlation, heteroscedasticity, and a stable and correctly specified model. This study assists policy makers in having a thorough understanding of the determinants of tax revenue performance, and as a result, policymakers may create tax laws that complement the nation's economic environment. Knowing which variables, like GDP per capita, foreign direct investment, and trade openness, have a favourable impact on tax collection allows for more focused policy interventions. Understanding the relationship between tax rates and revenue performance is helpful in determining the ideal tax rates. Based on empirical data, policymakers can modify tax rates to maximise revenue without inhibiting economic growth. The study recommends that the South African government should enhance GDP, encourage foreign direct investment, decrease unemployment, and promote trade openness to enhance tax revenue performance.
Enhancing the Mechanical Performance of Concrete Slabs through the Incorporation of Nano-sized Iron Oxide Particles (Fe2O3)
Authors: Kecir Amar , Chatbi Mohammed , Harrat Zouaoui R. , Bachir Bouiadjra Mohamed , Bouremana Mohammed , Krour Baghdad
Published: April 2024

The utilization of recycled iron in durable concrete production has gained attention for enhancing sustainability and resource efficiency. Simultaneously, incorporating nanoparticles as supplementary cementitious materials (SCMs) offers significant benefits. Introducing nano-sized iron particles (Fe2O3) into the cement paste results in a compact microstructure, improving strength, and durability. In this study, we investigate the bending behavior of concrete slabs reinforced with Fe2O3 nanoparticles using the non-local quasi-3D shear deformation theory based on Eringen's non-local differential constitutive relations. To characterize the elastic material properties of the nanocomposite, we employ Eshelby's homogenization model. In order to extend the applicability of our findings, we assume that the concrete plate rests on Kerr's foundation, which includes a shear layer connected to upper and lower springs. By deriving the equations of motion using the principle of virtual work, we establish a comprehensive framework for analyzing the bending of the concrete plate. To solve the equilibrium equations for a simply supported concrete plate, we present Navier's analytical solutions. Our investigation considers various influential parameters, such as the concentration of Fe2O3 nanoparticles in the concrete matrix, the elastic constants of the soil medium, different types of bending loads, and size-dependent nonlocal parameters. One of the most captivating findings of this study is that the incorporation of 30 wt% of iron nanoparticles in concrete leads to a remarkable improvement of 60% in the elastic properties of the material. Additionally, this same amount of iron nanoparticles has shown the potential to reduce the deflection of thin plates by over 60%.
Tracce di viaggio nella scrittura italo-canadese francofona
Authors: Buono Angela
Published: April 2024

Il viaggio come esperienza fondativa dell’identità migrante, nelle letterature che ne sono espressione, assume spesso un ruolo strutturale che va ben al di là del mero valore tematico. Nell’ambito delle letterature francofone, uno degli orientamenti più innovativi della critica come la transpoétique, teorizzata e applicata dallo scrittore e critico franco-ontariano di origine tunisina Hédi Bouraoui, individua nelle implicazioni sottese al viaggio, all’emigrazione, all’erranza delle precise strategie di composizione del testo letterario e, conseguentemente, di analisi testuale. In base a tale prospettiva critica, questa comunicazione si propone di investigare come il viaggio oltrepassi lo spazio geografico per lasciar traccia sull’identità e sulla scrittura nell’opera di autori italo-canadesi di lingua francese, quali Fulvio Caccia, Lisa Carducci, Bianca Zagolin, assegnando così alla definizione di “letteratura migrante” un significato più pregnante, inerente alla pratica stessa della scrittura.
Queer(ing) Italian-Canadian Literature. The Case of Steve Galluccio
Authors: Canton Licia
Published: April 2024

Montreal playwright Steve Galluccio states, “Italian immigrants, they weren’t gay.” The traditional values of Italians in Canada have often led to the marginalization of members of the LGBTQ+ community. For some, being queer and being of Italian origin is irreconcilable. Traditionally, the queer experience is not acknowledged in Italian immigrant homes. Today, there is still some reticence in the Italian-Canadian community, in both private and public spaces. Galluccio writes about his Italian origins and about being openly gay. Through his writing, he brings together two communities (LGBTQ+ and Italian Canadians) that often seem disconnected. This paper discusses Galluccio’s contribution to Italian-Canadian literature. It introduces his works, from the very popular Mambo Italiano to the most recent At the Beginning of Time, and looks at the connection between his literary contribution, Italian heritage, and queer identity.
Study of cobalamin adducts with cysteine and its oxidized sulfenic, sulfinic and sulfonic derivatives
Authors:   Department of Chemistry, Babeș-Bolyai University, Str. Arany Janos Nr. 11, RO-400028 Cluj-Napoca, Roumania, GAINA-GARDIUTA Artiom , LUPAN Alexandru ,   Department of Chemistry, Babeș-Bolyai University, Str. Arany Janos Nr. 11, RO-400028 Cluj-Napoca, Roumania, BRÂNZANIC Adrian M. V. ,   Raluca Ripan Institute for Research in Chemistry, Babeș-Bolyai University, Fantanele 30, 400294, Cluj-Napoca, Roumania, SILAGHI-DUMITRESCU Radu ,   Department of Chemistry, Babeș-Bolyai University, Str. Arany Janos Nr. 11, RO-400028 Cluj-Napoca, Roumania
Published: April 2024

In this paper, the reactivity of cobalamin towards S-oxidized cysteine derivatives (sulfenic, sulfinic, sulfonic and S-sulfate) is analyzed and compared to the reactivity towards related nitrogen, oxygen and sulfur-based ligands, focusing on the concept of linkage isomerism. UV-Vis spectra complemented by DFT and TD-DFT calculations show that cysteine and its oxidized derivatives do yield adducts, with a preference for binding to the cobalt through the sulfur.
Dianhydride moieties involvement on the interactions of some polyimides with nematic compounds
Authors:   “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iaşi, Romania, ALBU Raluca Marinica , BURUIANA Luminita Ioana ,   “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iaşi, Romania, STOICA Iuliana ,   “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iaşi, Romania, HULUBEI Camelia ,   “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iaşi, Romania, BARZIC Andreea Irina ,   “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iaşi, Romania
Published: April 2024

This article has the aim to perform a comparative analysis between a semi-aromatic polyimide (PI) and a fully aliphatic one, with focus on the dianhydride moiety effect on certain physical properties of interest in display applications. Molecular modeling proved that the distinct PI conformational features have implications on the polymer interaction with the nematic molecules. Optical studies indicate different levels of transparency as a function of the aromatic extent of the sample structure. For achievement of the nematic orientation on the PI layers, their surface is subjected to mechanical erosion. The characteristics of the created topography reveal the involvement of the type of dianhydride used in the PI synthesis. Wettability data show a relevant enhancement in the nematic adhesion work values after the surface rubbing of both PIs.
Molecular and silica-supported metal complexes as new catalysts for hydrosilylation
Authors:   “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iaşi, Romania, RACLES Carmen
Published: April 2024

Two disiloxanes with pyridyl or isocyanide functional groups, as well as silica materials carrying pyridyl or thiol functionalities were used as ligands for Pt(IV) and Fe(III) ions. The molecular and silica-supported metal complexes were tested in a model hydrosilylation reaction between 1,3-divinyl tetramethyldisiloxane and 1,1,3,3-tetramethyldisiloxane, conducted in (pseudo)-heterogeneous conditions. The new hydrosilylation catalysts afforded 75-100 % conversion and 87-93 % selectivity, based on NMR data, while some of them presented recyclability; they were also successful in silicones crosslinking at room temperature. In particular, the iron-isocyanide disiloxane complex is proposed as a promising, cheap, unsophisticated and stable catalyst, capable to act in heterogeneous conditions, without the need of dry solvent or inert atmosphere. Silica-supported Pt or Pt/Pd catalysts, obtained with commercial or recovered noble metals precursors, presented high conversion and increased regioselectivity in the hydrosilylation reaction, being reusable, and are efficient in other hydrosilylation reactions, useful in organic and silicon chemistry.
Tetrahedral angles of six membered ring calculated from NMR data with 3-sphere approach
Authors:   “C.D. Nenitescu” Institute of Organic and Supramolecular Chemistry, Splaiul Independentei 202B, Bucharest, Roumania, MITAN Carmen-Irena , BARTHA Emerich ,   “C.D. Nenitescu” Institute of Organic and Supramolecular Chemistry, Splaiul Independentei 202B, Bucharest, Roumania, FILIP Petru ,   “C.D. Nenitescu” Institute of Organic and Supramolecular Chemistry, Splaiul Independentei 202B, Bucharest, Roumania
Published: April 2024

Hypersphere equations enable calculation tetrahedral angles φCn[deg] of six membered ring from carbon chemical shift δCn[deg]. The tetrahedral angles calculated directly from eq. 2a,b are confirmed by the dihedral angles found in close relationship on the five sets unit (Ci and Ti, i = 1-5, C, T = U or S) having ϕ2X, ϕ2Y equal with θZ1, θZ2 were Z is A or B and X, Y are D, E or F,G, angle of seven sets unit, or on two units with six sets. A method which is expected in case of six membered ring to ensure calculation of the tetrahedral angles for all conformations, chair – boat – skew.
Validation of mutated CEBPA bZIP as a distinct prognosis entity in acute myeloid leukemia: a study by the Spanish PETHEMA registry
Authors: De la Torre Esther Prados , Serrano Josefina , Martínez-Cuadrón David , Torres Laura , Sargas Claudia , Ayala Rosa , Bilbao-Sieyro Cristina , Chillón María Carmen , Larráyoz María José , Soria Elena , Aparicio-Pérez Clara , Bergua Juan M. , Bernal Teresa , Gil Cristina , Tormo Mar , Algarra Lorenzo , Alonso-Domínguez Juan M. , Rodriguez-Arbolí Eduardo , Martínez-Sanchez Pilar , Oliva Ana , Colorado-Araujo Ana M. , Rodríguez-Medina Carlos , Vives Susana , Hermosín Lourdes , Martínez-López Joaquín , García-Sanz Ramón , Pérez-Simón José A. , Calasanz María José , Gómez-Casares María Teresa , Barragán Eva , Sánchez-García J Joaquín , Montesinos Pau
Published: April 2024

Not available.
Outcome of infants with acute lymphoblastic leukemia treated with the Chinese Children's Cancer Group Acute Lymphoblastic Leukemia 2015 study protocol
Authors: Leung Alex WK , Cai Jiaoyang , Wan Zhi , Qin Jiefen , Fang Yongjun , Sun Lirong , Zhu Jiashi , Hu Shaoyan , Wang Ningling , Gao Pan , Tian Xin , Zhu Xiaofan , Zhou Fen , Wu Xuedong , Ju Xiuli , Zhai Xiaowen , Jiang Hua , Hu Qun , Liang Changda , Yang Liangchun , Zhang Hui , Tang Jingyan , Gao Ju , Pui Ching-Hon , Li Chi-kong
Published: April 2024

Not available.
Frecuencia de las mutaciones en genes brca1 y brca2 y factores de riesgo relacionados con el padecimiento de cáncer de mama en mujeres que asisten al Instituto Del Cáncer Solca
Authors: Barros Illescas Jazmín Estefanía , Carpio Suárez Ruth Noemí , Ortiz Tejedor Jonnathan Gerardo , Andrade Galarza Andrés Fernando
Published: April 2024

Introducción: El cáncer de mama ha sido establecido como un problema de salud pública y es el más común a nivel mundial, es una enfermedad heterogénea que consiste principalmente en el crecimiento anormal, multiplicación y proliferación de las células sanas hasta transformarse en un tumor. Los genes BRCA1 y BRCA2 están en estrecha relación, pues son los encargados de inhibir los tumores malignos y una mutación de estos produce este tipo de carcinoma.  Objetivo: Caracterizar la frecuencia de las mutaciones en genes BRCA1 y BRCA2 en mujeres con cáncer de mama atendidas en el Instituto de Cáncer SOLCA Cuenca en el periodo 2019 – 2023. Metodología: El presente artículo está basado en un enfoque cuantitativo de tipo descriptivo no experimental, documental secundario y de corte transversal. La información se recopiló de fuentes secundarias ingresadas en la base de datos del departamento de secuenciación genética del Instituto del Cáncer SOLCA – Cuenca; se elaboró una base de datos mediante el empleo del programa Microsoft Excel y SPSS. Resultados: De 188 pacientes con cáncer de mama (correspondientes al 100%), apenas el 4% de casos es debido a una mutación en los genes BRCA1 o BRCA2, con un rango de edad de diagnóstico de 25 a 62 años. Conclusión: Los datos recopilados en este estudio determinaron que la frecuencia de las mutaciones en genes BRCA1 o BRCA2 en mujeres con cáncer de mama atendidas en el Instituto de Cáncer SOLCA Cuenca en el periodo 2019 – 2023 es baja. Área de estudio general: Medicina (biología molecular). Área de estudio específica: Oncología.  Tipo de estudio: Artículo Original.
4° Congreso sobre Medios de Transporte y sus Tecnologías Asociadas
Authors: Haedo UTN Facultad Regional
Published: April 2024

La cuarta edición del Congreso sobre Medios de Transporte y sus Tecnologías Asociadas se llevó a cabo del 4 al 6 de septiembre del año 2023 en la Universidad Tecnológica Nacional Facultad Regional Haedo.Esta edición del Congreso tuvo como objetivo continuar con la generación de un espacio de profundización del conocimiento en las nuevas tecnologías vinculadas con el transporte y temáticas afines. Cómo así también, propiciar el intercambio de saberes y experiencias sobre las diversas áreas, incluyendo el transporte automotor, ferroviario, marítimo, aéreo y espacial.A su vez, el encuentro se realizó con el objetivo de contribuir con la mejora de la eficiencia energética, generando una mayor conciencia para la disminución de la contaminación ambiental, enmarcado en los 17 objetivos de Desarrollo Sostenible.En las tres jornadas de exposiciones e intercambios de conocimientos, vale destacar la participación de docentes, profesionales y estudiantes nacionales e internacionales de México y Brasil.
Agradecimientos Al equipo de gestión, a los revisores, a los no docentes, y a cada uno de los docentes, profesionales y estudiantes que se sumaron a este congreso.
Autoridades Presidente: Ing. Carlos Hugo SalvadorVicepresidente: Dr. Ing. Maximiliano ZaninSecretario: Ing. Nicolás Urbano Pintos
Comité OrganizadorLic. Mariana FernandezC.P.N. Pablo EspínolaIng. Federico KristofIng. Santiago GiménezLic. Lucía LarrañagaIng. Miguel Basconcelo
Organización Administrativa Lic. Carolina SuarezLic. Marcela AradasSrta. Belén BeninaSrta. Lorena Campos Martínez
Comité Científico LocalDr. Carlos Lasorsa (UTN FRH)Dr. Javier Fava (UTN FRH - CNEA)Dr. Mario Lavorato (UTN FRH)Dr. Nelson Álvarez Villar (UTN FRH - CITEDEF)Dr. Pablo Caron (UTN FRH – UADE)Dr. Raúl Versaci (UTN FRH)Ing. Arnaldo Bejarano (UTN FRH)Ing. Edgardo Roggero (UTN FRH)Ing. Eduardo Asta (UTN FRH)Ing. Eduardo Rey (UTN FRH)Ing. Héctor Sanzi (UTN FRH)Ing. José Di Siervi (UTN FRH)Ing. Marcelo Cerocchi (UTN FRH)Ing. Pablo Cosentino (UTN FRH)
Comité Científico ExternoDr. Adrián Canzian (UTN FRGP)Dr. German Prieto (UNS - CONICET)Dr. Héctor Kotik (Universidad Federal de Rio de Janeiro)Dr. Hernán Svoboda (FIUBA)Ing. Diego Di Siervi (JST)Mg. Nora Dari (UTN FRA)
Revisores InvitadosDr. Julio Marañón Dr. Marcelo BaroneDra. Elida HermidaIng. Anibal VettorelIng. Carlos SinopoliIng. Daniel MonserratIng. Darío David de Lima Ing. Darío KurucIng. Diego IgaretaIng. Marcelo GutierrezIng. Mariano Fernandez SolerIng. Pablo GonzalezIng. Sergio Cortese Lic. Jorge KamlofskyLic. Leonardo Murruni Lic. Liliana Aranibar
Tópicos 

Aerodinámica
Educación y Difusión
Energía en el transporte
Materiales y Ensayos
Medio Ambiente
Regulaciones, Normas y Seguridad
Simulación
Tecnologías Asociadas
The Aqueous Extract of A Mixture of Eremomastax speciosa and Cyathula prostrata (ESCP) Leaves Regularises an Overcrowding-Blocked Estrous Cycle, Enhances Implantation and Improves on Liter Size in Female Rats
Authors: Besong Egbe B , B Nchegang , D A Sognia Nobou , A Kamanyi
Published: April 2024

The people of the Bayang Tribe of Manyu Division of the South-West Region of Cameroon use the leave-aqueous macerations of both Eremomastax speciosa and Cyathula prostrata, either combined or separately, to regularize blocked or altered menstrual cycles in non-menopause women and resolve pregnancy-related complications. The present study was aimed at evaluating the effects of the aqueous extract of a mixture of both plant-leaves (ESCP) on an overcrowding-induced anestrous cycle, implantation and liter size in female albino rats. In part I of the experiment, a total of 32 female rats with blocked estrous cycle as a result of overcrowding, were partitioned into 4 groups of 8 rats each and treated with distilled water (10 ml/kg bw), 36, 72 and 144 mg/kg of the extract, respectively, for a period of 21 days during which vaginal smears were examined daily to assess any change in the estrous cycle. In part II of the expriment, thirty-two 32 normal-cycle female rats were crossed over night with males of proven fertility, treated in the same way as those in part I for 7 days, underwent a laparotomy, then allowed to complete the gestation. The extract unblocked the estrous cycle and induced a return to normal cyclicity. Percentage regulation increased significantly (p < 0,001) from 0% in week 1 of treatment to 62.5% in week 2 in animals receiving both the 72 mg and 144 mg/kg body weight doses. By the 21st day of treatment, animals treated with the 72 mg and 144 mg/kg body weight doses registered 75% regulation, compared to a 12.5% regulation recorded in the control group. The aqueous extract of a mixture of Eremomastax speciosa and Cyathula prostrata (ESCP) possesses a regulatory effect on the estrous cycle of anestrous rats provoked by overcrowding, though the mixture might have anti-implantation properties at higher doses
Imaging Findings of Mucinous Cystadenoma of Cystic Duct With Biliary Obstruction: A Case Report
Authors: Liu Jian , Mao Zhiqun
Published: April 2024

Mucinous cystadenoma of the gallbladder account for 0.02% of the total number of cases in the hepatobiliary system. By searching the literature from 1900 to 2020, we found 16 cases of mucinous cystadenoma of the gallbladder. The first report of mucinous cystadenoma of the gallbladder was published in 1901 by Bishop. There are only 3 cases of bile duct obstruction caused by gallbladder mucinous cystadenoma extending into bile duct [1]. Meanwhile, the previous literature reports appear lack of complete imaging data. We report a rare case of mucinous cystadenoma of the cystic duct extending into the common bile duct causing biliary obstruction. It is the first case that describes the imaging findings of the disease in detail.
S.A.R.S Cov-2 Spike Protein Derivates, Graphene And Wireless Comunications Radiation: Epidemiological, Chemico Physical And Toxicological Aspects, Scientific Evidence.
Authors: M Luisetto , N Almukhtar , K Edbey , R Cipelli Benzi , G Tarro , R Ansovini , Rasool Mashori Gulam , C Fiazza , L Cabianca , Yurevich Latyshev O
Published: April 2024

Aim of this work is to search and analyze scientific literature involved in the effect played by wireless comunication radiation in the S.A.R.S-COV-2 spike protein derivates pathological process. This make possible to verify if it is necessary to be considered as a toxicological co-factor Various published evidence finded graphene impurity in vial some COVID-19 vaccine (P. Campra) or in vaccinated blood. But It is relevant to deeply investigate this phenomena using only scientifc evidence. Crucial also to verify the subpopulation distribution of pathological event in vaccinated like pericarditys or central nervous system thrombosys as well as the use of some technological tool like smartphone in the various age classes. This method make possible to generate hypotesys to be better veriefied. In this work is used a neutral approch without pre-concept.
ALZHEIMER HASTALIĞI, RİSK FAKTÖRLERİ VE TEDAVİ
Authors: Yıldırım Nejla , Can Eke Binay
Published: April 2024

Amaç: Alzheimer Hastalığı hem ülkemizde hem de dünya genelinde, yaş ortalamasının da artması ile birlikte görülme sıklığı her geçen gün artan ilerleyici ve zorlu bir hastalıktır. Hastalığa yakalanma nedenleri ve hastalığın patolojisi hala tam olarak aydınlatılamamış, hastalığa yakalanmayı önleyen bir yol bulunamamış ve hasta olduktan sonra da kullanıldığı takdirde hastayı tamamen iyileştirdiği kanıtlanmış bir molekül keşfedilememiştir. Konvansiyonel ilaçlar ile tedavi halen daha klinikte en çok başvurulan ve sadece semptomatik yarar sağlayan tedavi yöntemidir. Günümüzde innovatif ilaç çalışmaları Alzheimer Hastalığına ışık olabilmek için devam etmektedir.
Sonuç ve Tartışma: Hastalığın patofizyolojisi tam olarak anlaşılamadan tedavi edilmesi mümkün olmamakla birlikte gelişen ilaç teknolojisi ile umut vaat eden yeni moleküller klinikte kullanıma sunulmuştur. Etkili ve güvenli bulunmalarının devamı halinde ilaç pazarında yerini sağlamlaştırarak hastalara umut olacaklardır.
Biological indicators reveal mesozooplankton foray behaviour in dynamic physical environments: Reply to Kaartvedt et al. (2024)
Authors: Dewar-Fowler V , Robinson C , Saunders RA , Thorpe SE , Abrahamsen EP , Tarling GA
Published: April 2024

Kaartvedt et al. (2024; Mar Ecol Prog Ser 734:173-175) comment on the role internal waves played in the findings of Dewar-Fowler et al. (2023; Mar Ecol Prog Ser 715:27-39) that foray behaviour was present across a number of zooplankton species in the Polar Frontal Zone of the Southern Ocean. Kaartvedt et al. (2024) contend that foray behaviour may not be responsible for the capture of zooplankton by fixed-depth bi-directional net-traps because the influence of internal waves on transporting these organisms into the traps was not accounted for. In Figs. 4 & 5 of Dewar-Fowler et al. (2023), directional biases were apparent in the abundance and taxon-ratios captured by the upward and downward looking nets, which can only be explained by the active swimming and avoidance behaviours of zooplankton. This refutes the contention that physical processes such as internal waves dominated capture rates by the net-trap. Even within this physically dynamic oceanic frontal zone, biological indicators such as these biases support the assertion of Dewar-Fowler et al. (2023) that foray behaviour is detectable and prevalent within zooplankton communities.