bluuebunny/crossref_metadata_2025_split huggingface dataset:
Factors Influencing the Adoption of Smart Building and Service Preferences in Sri Lanka
Authors: Weerawardhana Savindika , Weerakoon Thilina Ganganath , Wimalasena Sulaksha , Moganaraj Nivethan 
Published: February 2024

Abstract
The notion of smart buildings is becoming a global trend. The smart concept is spread not only via buildings but also through cities, transportation, and communication. Many difficulties human beings face can be solved by smart building technology. For example, environmental contamination and resource depletion, such as water and fossil fuels. In Sri Lanka, smart building adoption was at a low level. As a result, the purpose of this research is to assess user comprehension of smart building service preferences and adoption from a Sri Lankan viewpoint. A questionnaire survey is used to obtain data from the community as part of the data collection approach. To achieve the objectives stated above, the data will be analysed using principal component analysis, multiple regression analysis, and Pareto analysis. Results indicated that the majority of Sri Lankans do not grasp smart building technologies. Using principal component analysis, eleven major service preferences were determined. Multiple regression analysis is used to identify the factors that influence service preference. The most essential elements impacting smart building adoption are competency to utilize new technology, preference for smart building attributes, and user satisfaction. This study would be an excellent resource for the future adoption of smart building technologies in Sri Lanka.
Design of a bidirectional EV charger using unit template-based current-controlled synchronous reference frame hysteresis
Authors: Etemesi Ambuli B. R. , Megahed Tamer F. , Kanaya Haruichi , Mansour Diaa-Eldin A. 
Published: February 2024

Abstract
Existing distribution networks were not designed with large-scale electric vehicle (EV) charging infrastructure in mind. Integrating EV charging stations with the distribution grid might lead to power quality (PQ) issues at the point of common coupling (PCC). This work proposes a two-mode, unit template-based synchronous reference frame hysteresis current-controlled (SRF-HCC) three-phase Level 2 EV charger. Mode one focuses on charging the EV battery from the grid (G2V) and utilizes current and voltage control techniques to enhance battery life and performance. Whereas mode two enables the EV’s stored energy to be discharged to the grid (V2G) by the EV user, allowing the sale of power to support the transient effect of the grid voltage and frequency and enhancing the grid’s PQ. The HCC generates switching pulses for both the AC-DC and buck-boost converters. The SRF-based unit template-based control (SRF-UTC) method ensures system stability, voltage, and frequency regulation for power exchange with the grid by combining its efficiency with that of the HCC. The EV charger proposal comprises three primary components: a 3-phase bidirectional AC-DC converter, a bidirectional buck-boost converter, and a filter circuit. The proposed system was modeled using MATLAB/Simulink and evaluated in two case studies to assess its performance.
Experimental test performance for a comparative evaluation of a voltage source inverter: Dual voltage source inverter
Authors: Mangaraj Mrutyunjaya , Sabat Jogeswara , Barisal Ajit Kumar 
Published: February 2024

Abstract
This article proposes an adaptive Kernel-Hebbian least mean square (KHLMS) controller for a dual voltage source inverter (VSI). The recommended topology consists of a distributed energy resource (DER) supported VSI called main VSI (MVSI) and split capacitor supported VSI termed as auxiliary VSI (AVSI). Both the MVSI and AVSI are used to serve the shunt compensation when DER is not integrated with MVSI. The DER scenario is considered to suppress the active power flow shortage in the utility grid. Here, optimal active power flow control (OAPFC) is managed by MVSI and shunt compensation is achieved by AVSI during DER operated mode. Hence, a dual VSI based distribution static compensator (DSTATCOM) facilitates the configuration merits such as reduction in system downtime cost, filter rating switching stress etc. Supremacy of both the neural network (NN) based controller and topology is presented by comparing VSI (called AVSI) in the context of harmonic reduction in source side, voltage balancing, power factor (PF) enhancement, better voltage regulation and OAPFC. The experimental results are obtained through field programmable gate array (FPGA) based hardware units which exhibit radical improvement in the power quality (PQ) conferring as per the international standard grid code (IEEE-519-2017).
A simple design of low-loss quad-band Wilkinson power dividers
Authors: Giang Nguyen Minh , Thang Le Ho Manh , Manh Le Dang , Huong Tran Thi Thu 
Published: February 2024

Abstract
In this paper, a novel design method for quad-band Wilkinson power dividers is proposed. The design method is based on using a quad-band microstrip line. In comparison with other design methods, the proposed method has the advantages of simplicity and low insertion loss. To validate the proposed method, an equal quad-band power divider operating at four bands of 0.7, 1.2, 1.78, and 2.28 GHz was simulated and measured. Good agreement between measured results and simulated ones is obtained. The measured results show that the developed quad-band power divider features low insertion loss of less than 0.75 dB, isolation greater than 20.92 dB, and return loss better than 18 dB at four operating bands.
High Resolution Quadrupole Mass Spectrometer for Ion Beam Processing
Authors: Blahins J. , Bzhishkian A. 
Published: February 2024

Abstract
The mass filtering equipment in the ion beam processing industry plays a vital role. Mass filtering is usually achieved through classic magnetic mass selector techniques. The drawbacks of these techniques are the dimensions, weight, price, and power consumption. We suggest mitigating it by using the electrostatic RF mass selector instead of the magnetic one. We discuss the development of a novel ion beam processing apparatus that employs a QMS filter in a vacuum of superior purity. We describe the experimental setup in terms of part design. The article presents the successful test results of that parts. The article also explains in detail the basic principles and the technical realization of the whole apparatus and presents experimental data showing its high capabilities.
Compensation of Accuracy Error for Time Interval Measurements
Authors: Bespal’ko V. , Litvinenko A. , Stepanovs V. , Kurtenoks V. , Smetska V. , Lapkovskis V. 
Published: February 2024

Abstract
A method of accuracy error compensation for the time interval is examined, allowing to decrease the dependence of accuracy error on the duration of measured intervals and minimising the influence of destabilising factors – ambient temperature changes and the initial deviation of the meter clock generator frequency from the nominal value. The compensation method is based on a calibration procedure that measures precise time intervals under conditions of changing ambient temperature. Then the dependence of the accuracy error on temperature for a particular meter is recorded. Based on these data, a correction table is compiled containing correction factors and temperature values at which these factors were determined. Under real measurement conditions, the correction factor corresponding to the current temperature is determined from the table for measured result correction. The table with correction factor values could be stored in the memory of the meter or processing computer. Experimental verification of the method showed that applying a correction for a meter with a standard XO class clock generator (certificated instability of ±50 ppm) could obtain an equivalent clock generator instability of ±0.15 ppm. The application of the method is efficient in cases where the use of high-end clocking to ensure the required measurement accuracy is not economically feasible.
On best proximity point theorems for relatively nonexpansive mappings in locally convex spaces
Authors: Saadaoui Brahim , Harmouchi Nour-Eddine El , Mouline Jamal , Lazaiz Samih 
Published: February 2024

Abstract
This paper explores the concept of normal structure by introducing a generalized form known as P-proximal normal structure. Focusing on the framework of Hausdorff locally convex spaces, the study establishes optimal proximity outcomes for both cyclic and noncyclic relatively P-nonexpansive mappings. Furthermore, the paper presents in the realm of probabilistic normed spaces, considered as instances of Hausdorff locally convex spaces, some theorems that address the existence of best proximity points within this context.
p(x)-Kirchhoff bi-nonlocal elliptic problem driven by both p(x)-Laplacian and p(x)-Biharmonic operators
Authors: Jennane Mohsine , Alaoui My Driss Morchid 
Published: February 2024

Abstract
We investigate the existence of non-trivial weak solutions for the following p(x)-Kirchhoff bi-nonlocal elliptic problem driven by both p(x)-Laplacian and p(x)-Biharmonic operators

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Analysing Metal Melting Methods for Green Transformation of Scrap Metal: Case Study of Latvia using MCDA and SWOT Analysis
Authors: Terjanika Viktorija , Pubule Jelena , Mihailova Elina , Zlaugotne Beate 
Published: February 2024

Abstract
Metal is one of the most widely used materials in the world. It was a crucial driving force in technological development since the industrial age and continues to push us forward to this day. As metal consumption grows, so does the amount of scrap metal generated. Proper utilization of this waste is crucial in mitigating the negative environmental impacts of the metalworking industry. The processing and use of raw materials is often associated with high resource consumption and high emissions. The utilisation of scrap metal instead of raw metal can lead to up to 10 times less electricity consumption and up to 30 times fewer CO2 emissions. However, selecting the most suitable scrap metal processing technology is crucial, particularly in the case of the metal melting furnace which is the backbone of the industry. The efficiency of this process determines the environmental indicators for the entire scrap metal melting process. This paper conducts an analysis of 8 types of metal melting furnaces based on 11 environmental criteria. Furthermore, a SWOT analysis is conducted to evaluate the efficiency of the metal smelting process in Latvian metalworking enterprises and the potential for future expansion.
Bids in The Municipality of Teófilo Otoni/Mg: Modalities and The Existence of Sustainability Criteria
Authors: Almeida Luis Felipe Amaral , De Souza Marcio Coutinho , Ferreira João César de Souza 
Published: February 2024

Objective: The article aims to analyze the bidding modalities and the existence of sustainability criteria in the bidding notices of the municipality of Teófilo Otoni/MG based on the AGU's National Guide to Sustainable Contracting.

Theoretical background: In order to respond to society's demands, the Public Administration needs to use goods and services supplied by third parties selected through a formal administrative procedure called bidding, which must include socio-economic sustainability criteria so that public purchases contribute to sustainable national development.

Method: An exploratory and descriptive study was carried out, based on current legislation, recent articles and doctrine on the subject, as well as on the municipality's electronic portal, where 154 processes for contracting goods and services were found for the year 2021.

Results and conclusion: It was found that the municipality needs to adhere to greater specifications for the objects it bids for, especially with regard to certifications from competent bodies, in order to ensure sustainability in its purchases.

Research implications: The correlation between public procurement, bidding and sustainability presented in the research is of paramount importance in order to assess how the Public Administration can use its purchasing power to collaborate with sustainable national development.

Originality/value: The study is original and provides the academic community with a local examination that better reflects the reality in the municipality surveyed in terms of the actions of government management in relation to sustainability based on its purchasing processes.
The genre of the holiday story in the literature of the XXI century for children and teenagers
Authors: Oktyabr'skaya Ol'ga Svyatoslavovna 
Published: February 2024

The article explores the genre features of a vacation literature about a children's health camp of the late XX – early XXI centuries. Both the traditions of the story about the pioneer camp of the twentieth century and the original features of modern literature for children and adolescents are revealed. The article actualizes the topics of the relationship between adolescents and children in a new team, the problems of growing up and socialization. A fairly extensive typology of child and adolescent characters relevant to modern reality is presented. The significance and importance of this article is due to the importance of the problems posed, as well as modern and practically unexplored research material, which are the works of V. Krapivin, T. Kryukova, M. Panteleeva, T. Mikheeva, etc., which are only included in scientific circulation. To understand these aspects, the following research methods are used in the article: comparative, hermeneutical and comparative typological methods. With the help of a systematic approach, an analytical study of the ways of communication between children and adolescents, their socialization and self-realization in a vacation story is provided. The main result of this work is the study of different types of characters of children and adults, ways of their interaction and ways of self-realization. The study of practically new and little-studied artistic material that arouses genuine interest among teenagers themselves becomes relevant in this article. At the same time, the following tasks were solved: identifying key aspects of growing up and socialization of a child / teenager; analyzing the relationships of children in the novels of V. Krapivin, T. Kryukova, M. Panteleeva, T. Mikheeva and other writers; determining the features of the development of the main storylines and the imaginative system of the analyzed stories, as well as the genre originality of the works under study. The key aspects of the article were questions about the genre nature of the stories, the typology of child and adolescent characters, and the moral aspects of growing up a child.
Pencegahan Stunting Melalui Pemberian Makanan Tambahan dalam Kegiatan Posyandu di Desa Kliris Kendal
Authors: Chika Syifara , Andini Putri , Syafii Ubed Abdillah , Cahyani Adinda Agis Fitria 
Published: February 2024

Stunting adalah kondisi gagal tumbuh pada anak yang bermula sejak bayi dikandung dalam kandungan ibunya hingga anak berusia kurang dari 2 tahun. Terjadinya stunting disebabkan karena malnutrisi yaitu kurangnya zat gizi makronutrien maupun mikronutrien dalam jangka waktu yang lama terlebih pada periode 1000 hari pertama pada kehidupan. Desa Kliris, Kendal memiliki salah satu program untuk mencegah stunting dengan melalui posyandu. Pada kenyataannya tidak banyak masyarakat di Desa Kliris yang menerapkan program makanan yang bergizi dan pola hidup yang sehat. Penelitian ini bertujuan untuk mengetahui pencegahan stunting pada anak melalui program Posyandu di Desa Kliris Kendal. Metode pada penelitian ini adalah dengan obeservasi langsung yang dilaksanakan peneliti dengan cara mengamati dan menggali data informasi dengan mengunjungi lokasi penelitian dan terlibat secara langsung di dalam kegiatan Posyandu. Program utama yang dilakukan oleh mahasiswa KKN Mandiri Intensif Terprogram ke 14 Kelompok 55 UIN Walisongo Semarang dan tenaga kesehatan Desa Kliris pada program pencegahan stunting di Desa Kliris yaitu Pemberian Makanan Tambahan (PMT) yang mengandung gizi yang baik. Sasaran dari program tersebut merupakan anak-anak yang mengikuti posyandu dan ibu-ibu hamil. PMT yang diberikan antara lain salad buah, bubur kacang hijau, jus jambu, jajanan tradisional seperti aneka biskuit dan kue, serta berbagai buah seperti pepaya dan pisang. Pencegahan stunting juga dilakukan dengan cara memberikan pemahaman tentang pentingnya pemenuhan gizi pada anak dan pola hidup bersih sehat melalui sosialisasi kepada orang tua dan ibu-ibu hamil.
Expression of immune checkpoint genes during kidney cancer progression
Authors: Апанович Н.В. , Апанович П.В. , Халмурзаев О.А. , Матвеев В.Б. , Алимов А.А. 
Published: February 2024

Светлоклеточный почечно-клеточный рак (скПКР) является наиболее распространенным и агрессивным гистологическим подтипом почечно-клеточного рака. На момент постановки диагноза у трети больных имеют место отдаленные метастазы. Значительный прогресс в лечении метастатического рака почки достигнут с началом применения таргетной терапии и терапии ингибиторами иммунных контрольных точек. Тем не менее такая терапия не всегда эффективна. В этой связи актуально изучени молекулярных механизмов, лежащих в основе резистентности и прогрессирования рака почки. В данном исследовании изучены образцы опухоли от пациентов с метастатическим и неметастатическим скПКР. В опухолевой ткани по сравнению с сопутствующей ей гистологической нормой был проанализирован уровень экспрессии восьми генов: CD274, LGALS9, PVR, TDO2, IDO1, CD276, CEACAM1 и ADAM17. Экспрессию генов анализировали методом ПЦР в реальном времени. В результате анализа выявили гены с наиболее часто повышенной экспрессией при скПКР: LGALS9, TDO2 и IDO1. Показаны статистически значимые различия уровней экспрессии в изучаемых группах для генов CD274, PVR и CD276 (тест Манна-Уитни, p = <0,001; 0,003; 0,004, соответственно). Полученные данные о молекулярно-генетических механизмах прогрессирования опухоли могут внести вклад в разработку новых терапевтических подходов.
Clear cell renal cell carcinoma (ccRCC) is the most common and aggressive histologic subtype of renal tumors. At the time of diagnosis, one-third of patients develop distant metastases. Significant progress in the treatment of metastatic renal cancer has been made with the advent of targeted therapies based on immune checkpoint inhibitors. However, such therapy is not always effective. Therefore, it is relevant to study the molecular mechanisms underlying resistance to therapies that promote renal cancer progression. In this study, tumor samples obtained from patients with metastatic and non-metastatic ccRCC were investigated. The expression levels of eight genes, CD274, LGALS9, PVR, TDO2, IDO1, CD276, CEACAM1 and ADAM17, were analyzed in tumor tissue compared with the corresponding histological normal tissue. Gene expression was analyzed by real-time PCR. LGALS9, TDO2 and IDO1 genes were found to be most frequently upregulated in kidney cancer. Statistically significant differences in expression levels in the studied groups were shown for CD274, PVR and CD276 genes (Mann-Whitney test, p = <0.001; 0.003; 0.004, respectively). Our findings on the molecular genetic level of tumor progression may be useful for the development of new therapeutic treatment regimens.
Association of allelic variants of the STOX1 gene with preeclampsia in Russian population samples
Authors: Трифонова Е.А. , Бабовская А.А. , Гавриленко М.М. , Степанов В.А. 
Published: February 2024

Преэклампсия (ПЭ) − тяжелая акушерская патология, ежегодно затрагивающая до 8% всех беременностей. К настоящему времени проведены многочисленные генетические исследования с использованием как кандидатного, так и полногеномного подходов, чтобы раскрыть генетическую основу ПЭ. Эти работы выявили ряд многообещающих генов-кандидатов ПЭ, включая локус STOX1. В представленной работе проведён анализ роли наследственной вариабельности гена STOX1 в формировании предрасположенности к ПЭ в различных этнических группах России. Обнаруженные нами ассоциации генотипов локуса STOX1 с ПЭ характеризуются популяционной специфичностью: у русских установлены рисковые генотипы полиморфных маркеров rs4746796 и rs7095976, в якутской этнической выборке был выявлен протективный генотип аллельного варианта rs1694505.
Preeclampsia (PE) is a severe obstetric pathology that affects up to 8% of all pregnancies per year. By now numerous genetic studies have been conducted using both candidate and genome-wide approaches to reveal the genetic basis of PE. Therefore, a number of promising candidate genes for PE, including the STOX1 locus, were identified. In this article, the role of heritable variation of the STOX1 gene in the formation of predisposition to PE in various ethnic groups of Russia was analyzed. The associations of genotypes of the STOX1 locus with PE that we found were characterized by population specificity. Genotypes of polymorphic markers rs4746796 and rs7095976 with risk effect were identified in Russians. The protective genotype of the rs1694505 allele variant was revealed in the Yakut ethnicity.
An ultra-rare form of fatty acid metabolism disorder in adults: a case report
Authors: Серебренников В.Н. , Бакшеев В.И. , Серебренникова К.В. , Прохорчик А.А. , Байдакова Г.В. , Баранова П.В. , Захарова Е.Ю. 
Published: February 2024

Представлена клиническая и молекулярно-генетическая характеристика первого в России случая глутаровой ацидурии 2-го типа (ГА2, множественная недостаточность ацил-КoA дегидрогеназы) у взрослого пациента, развившейся на фоне физической нагрузки и новой коронавирусной инфекции COVID-19. Обнаружена не описанная ранее мутация NM_004453.4:c.886G>C (p.Gly296Arg) (СМ081237) в гене ETFDH.
The article presents clinical, genetic and molecular characteristics of the first case of glutaric aciduria type 2 (GA2, multiple acyl-CoA dehydrogenase deficiency) in an adult patient in Russia, which was triggered by physical activity and COVID-19. A previously undescribed mutation NM_004453.4:c.886G>C (p.Gly296Arg) (CM081237) in the ETFDH gene was discovered.