bluuebunny/crossref_metadata_2025_split huggingface dataset:
Virtual Value Engineering in Investment and Construction Activities
Authors: Воробьев В.С. , Моисеева И.О. 
Published: September 2024

Состояние проблемы. Внедрение инновационных технологий и совершенствование строительных процессов в современном мире являются неотъемлемой частью инвестиционно-строительной деятельности. Инжиниринг играет важную роль в инвестиционно-строительном проекте, поскольку присутствует как на этапе планирования, так и на этапах реализации проекта. Под понятием «стоимостной инжиниринг» подразумевают набор методов и инструментов, которые позволяют управлять затратами на объект на всех этапах его жизненного цикла. Интеграция инвестиционно-строительные инжиниринговых услуг и новейших технологических достижений является новым, но уже популярным явлением строительном отраслевом рынке. Результаты. В исследовании сделан акцент на необходимости комплексного подхода к проектированию объектов, учитывая особенности современного развития технологий и потребности участников инвестиционно-строительных проектов в оперативном вмешательстве в структуру управления проектом. Выводы. Обосновано внедрение современного «виртуального инжиниринга», который способствует созданию комфортных условий для всех участников инвестиционно-строительного проекта.
Statement of the problem. The Russian investment and construction industries continue to grow, and there is a growing demand for services related to designing and implementing new projects. The introduction of innovative technologies and improvements to construction processes are essential parts of investment and construction efforts in today's world. Engineering plays a significant role in investment and construction projects, as it is involved both in the planning phase and during the implementation stages. Cost engineering is a concept that refers to a set of techniques and tools used to manage the expenses of a project throughout its lifecycle. The integration of investment and construction engineering services with the latest technological advancements is a new but already popular trend in the construction market. Results. This study emphasizes the importance of an integrated approach to facility design, considering the unique characteristics of modern technology and the requirements of participants in investment and construction projects that require operational involvement in project management. Conclusions. The paper supports the introduction of «virtual engineering», which can create a more comfortable environment for all stakeholders in an investment or construction project.
Experimental and Statistical Modeling the Influence of Temperature Regimes of Asphalt Concrete Mix Production and Volumes of Supplied Protective Gases on the Process of Thermal Oxidative Aging
Authors: Подольский В.П. , Чудайкин А.Д. 
Published: September 2024

Постановка задачи. Существует потребность в наборе экспериментальных данных по влиянию изменения объемов защитных газов на старение асфальтобетонной смеси при смешивании и хранении с целью оптимизации технологических параметров. Кроме того, необходимо установить влияние температурных режимов и взаимосвязь факторов. Результаты. Проведены полупромышленные испытания на асфальтобетонной установке малой мощности с применением защитных газов в процессе производства смеси. Получены статистические данные, отражающие влияние изменения объема подаваемых газов и температурных режимов на пределы прочности и степень технологического старения смеси в процессе смешивания и хранения. Выполнено моделирование процессов. Выводы. По результатам экспериментально-статистического и математического моделирования установлено, что наличие инертной среды в условиях стандартного температурного режима приготовления асфальтобетонной смеси замедляет процессы старения, при повышенных значениях температуры влияние инертной среды уже незначительно. Кроме того, определены оптимальные объемы подаваемых защитных газов.
Statement of the problem. There is a need for a set of experimental data on the effect of changes in the volume of protective gases on the aging of asphalt concrete mixture during mixing and storage in order to optimize technological parameters. In addition, it is necessary to establish the influence of temperature regimes and the relationship of factors. Results.Semi-industrial tests were carried out on a low-power asphalt concrete installation using protective gases during the production of the mixture. Statistical data were obtained reflecting the effect of changes in the volume of supplied gases and temperature conditions on the strength limits and the degree of technological aging of the mixture during mixing and storage. The modeling of processes has been performed. Conclusions. According to the results of experimental statistical and mathematical modeling, it was found that the presence of an inert medium in the conditions of the standard temperature regime for the preparation of asphalt concrete mixture slows down the aging process, at elevated temperatures the influence of the inert medium is already insignificant. In addition, the optimal volumes of supplied protective gases have been determined.
High-Temperature Epitaxial Growth of Tantalum Nitride Thin Films on MgO Substrates: Structural Evolution and Potential for SQUID Applications.
Authors: Cedillo Rosillo Michelle , Contreras López Oscar , Díaz Jesús Antonio , Conde Gallardo Agustín , Castillo Cuero Harvi A 
Published: September 2024

The growth of superconducting tantalum nitride (TaN) thin films on magnesium oxide (MgO) substrates has been studied using pulsed laser deposition (PLD). This research examines how varying deposition parameters, substrate temperature, and ambient gas composition affect the structural, morphological, and superconducting properties of the films. X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Atomic Force Microscope (AFM) and Transmission electron microscopy (TEM) results show that the TaN films possess excellent crystallinity and smooth surface morphology, with an optimal deposition temperature of 850 °C. The films exhibit superconducting transition temperatures (TC) ranging from 5.0 K to 9.3 K, depending on the stoichiometry and deposition conditions. Electrical resistivity measurements further confirm the high quality of the films, reflected by their low residual resistivity ratios. These results indicate that PLD is a suitable method for producing high-quality TaN superconducting films.This study emphasizes the role of deposition parameters in tuning the superconducting properties, particularly for applications in superconducting electronics and quantum computing. Additionally, these films are potentially used in susceptible devices like Superconducting Quantum Interference Devices (SQUIDs), with further improvement possible through optimizing stoichiometry and reducing oxygen impurities.
NÍVEL DE ATIVIDADE FÍSICA E QUALIDADE DO SONO EM IDOSOS PARTICIPANTES DE UM CENTRO DE CONVIVÊNCIA DA MELHOR IDADE
Authors: Rabuske Ana Paula , Vieira Luana dos Passos , Figueiró Betina Breyer , Dumke Sophya Tanize , Souza Marina Möhlecke de , Cardoso Gabriel Sebastião , Bellini Laura Lersch , Fredrich Sofia Vasconcelos , Reuter Éboni Marília , Dubow Camila 
Published: September 2024

Introdução: Com o envelhecimento ocorre redução no tempo e na eficiência do sono, bem como aumento do comportamento sedentário. Sabe-se que a atividade física regular está associada a melhorias no sono em idosos. Objetivo: Analisar a qualidade do sono e nível de atividade física em idosos. Métodos: Estudo transversal que avaliou idosos de ambos os sexos (60 a 80 anos) de um centro de convivência da Melhor Idade do interior do Sul do Brasil - RS. Foram avaliados os dados demográficos, comorbidades, fatores ambientais, a qualidade do sono (Índice de Qualidade do Sono de Pittsburgh), e o nível de atividade física (Questionário Internacional de Atividade Física - versão curta). Para análise dos desfechos, foi utilizado o teste Exato de Fisher e teste t Student para amostras independentes. Resultados: Amostra (n= 26, 80,8% do sexo feminino) com idade de 70,65 ± 5,52 anos, em que participantes com hipertensão arterial sistêmica apresentaram uma proporção maior de qualidade do sono ruim quando comparados aos sem hipertensão (p<0,038). No que tange à qualidade do sono, 69,2% apresentaram qualidade do sono ruim e 88,5% dos idosos eram ativos. Não houve associação entre qualidade do sono e nível de atividade física dos idosos. Conclusão: Idosos participantes de um grupo de Centro de Convivência possuem majoritariamente qualidade de sono ruim, embora sejam fisicamente ativos. Não houve associação entre a qualidade do sono e o nível de atividade física nos idosos avaliados.
Du bon usage du coût d’abattement dans le contexte de la neutralité carbone en 2050 : principes et application à la mobilité
Authors: Meunier Guy , Ponssard Jean-Pierre 
Published: September 2024

Cet article montre : (i) que la définition d’un indicateur dynamique de coût d’abattement, évaluant le déploiement d’une technologie décarbonée en substitution d’une technologie carbonée, est une approche plus complète que celle des coûts d’abattement traditionnels, et qu’elle débouche sur une préconisation d’accélération des programmes de décarbonation ; (ii) que cet indicateur peut être appliqué à un enchaînement temporel de nouvelles technologies, cet enchaînement permettant (plus ou moins graduellement) d’atteindre l’objectif zéro émission nette (ZEN). L’indicateur permet alors de calculer les dates optimales (en économie publique) des différentes étapes de lancement. Deux applications sont présentées. En introduisant la notion de trajectoire, nous mettons en évidence que notre approche : (i) permet de prendre en compte le problème du lock-in lors d’une comparaison entre véhicule hybride et véhicule électrique; (ii) permet de caractériser les conditions d’existence d’une niche pour la technologie hydrogène face à la technologie à batterie dans le secteur des bus urbains.
Flexibilités de la demande : un levier essentiel pour décarboner et optimiser le système électrique
Authors: Jacquemart Yannick , Oriol Louise , Janvier Thibault 
Published: September 2024

La flexibilité de la demande est un axe prioritaire pour assurer la sécurité d’approvisionnement et optimiser le fonctionnement du système électrique. Décaler et moduler les consommations qui peuvent l’être pour consommer « au bon moment », quand la production d’électricité renouvelable et nucléaire est la plus disponible, permettra au système électrique d’accueillir plus d’usages à décarboner. Comment définir cette flexibilité et stimuler son développement ? On distingue quatre types de besoins de flexibilités pour l’équilibre offre-demande du système électrique. À l’horizon 2030, RTE appelle à accélérer le développement des flexibilités de la demande pour y répondre. L’article revient sur ces besoins et présente des recommandations pour lever les freins aux flexibilités structurelles et dynamiques de la demande.
Caregivers’ expectations of their non-verbal autistic children in rural KwaZulu-Natal
Authors: Haffejee Fatima , Pahl Jennifer A.H. , Karrim Saira B. 
Published: September 2024

Background: Caregiver expectations have been shown to impact child outcomes. There is limited research regarding caregivers of non-verbal autistic children in rural South Africa. Autistic individuals form part of a larger environment, which they influence and which impacts them. Caregivers form part of this environment.Objectives: This study aims to explore caregivers’ expectations of communication, education, social implications and intervention for their non-verbal autistic child in rural KwaZulu-Natal (KZN).Method: Bronfenbrenner’s ecological and bioecological systems theory framed the study and allowed the child’s interaction with their environment to be understood through the use of a qualitative study design via interviews. Eleven caregivers (pilot study: n = 1 and main study: n = 10) of non-verbal autistic children were selected and interviewed. Data were analysed thematically.Results: Caregivers had varied expectations. Grandparents were often the primary caregivers (microsystem). Relationships within the mesosystem (caregiver and therapist) and caregiver’s understanding affected their feelings and expectations that changed over time (chronosystem). Education was the predominant expectation. The study highlighted limited resources (schools) within the exosystem. Caregivers reported both support and judgement from their communities.Conclusion: There is a need for public awareness, caregiver counselling and autism support groups in rural KZN and more specialised education options in order to improve caregivers’ expectations.Contribution: This study contributes to the limited literature in the field of autism in South Africa, more specifically the rural context and communication disorders.
Fierce Fusarium solani infection in diabetic foot – A double-barrel rifle
Authors: Kanthiah Subha , Subramanian Sonia , Ranjan Nagalakshmi , Kumarasamy Poongodi Santhana 
Published: September 2024

Abstract
Diabetic foot is one of the most serious and prevalent manifestations of diabetes mellitus. In a study conducted in Eastern India, 31.7% of diabetic patients with infections in the lower limb had positive fungal cultures. In this background, we present here a case of diabetic foot infection that progressed to gangrenous necrosis due to Fusarium solani.
Enhanced methods for multicollinearity mitigation in stochastic frontier analysis estimation
Authors: Rauf Rauf Ibrahim , Ayinde Kayode , Hamidu Bello A. , Kikelomo Bodunwa O. , Olusegun Alabi O. 
Published: September 2024

Efficiency estimation in production technology has been a concern in economics, with methodologies such as Stochastic Frontier Analysis (SFA) playing a key role in this area. SFA has been pivotal in evaluating the efficiency of entities by isolating technical inefficiency from random production errors. However, despite its significance, the application of SFA faces challenges when the multicollinearity assumption underlying the model is violated. Therefore, this study presents a novel estimator, termed “Principal Component Analysis Estimation for Stochastic Frontier Analysis” (PCA-SFA), to address the problem of multicollinearity in the classical SFA model. The PCA-SFA estimator integrates Principal Component Analysis (PCA) to correct assumption violation arising from multicollinearity. Monte Carlo simulation study was conducted to ascertain the PCA-SFA performance, involving no fewer than 2,000 replications based on the Cobb-Douglas production function with varying levels of multicollinearity, represented by correlation coefficients ranging from 0.8, 0.9, 0.95, 0.99, and 0.999, and sample sizes (n) of 20, 50, 100, 250, and 1,000. The proposed estimator’s performance was compared to the classical SFA model using the Mean Square Error (MSE), Akaike Information Criterion (AIC), and Bayesian Information Criterion (BIC) as evaluation metrics. The results demonstrate that the PCA-SFA estimator consistently outperforms the classical SFA model. The PCA-SFA model showed significantly lower MSE, AIC, and BIC values, indicating improved precision and reliability in parameter estimation. The study, therefore, recommends that researchers and practitioners in econometrics and related fields consider integrating PCA-SFA into their production efficiency analytical frameworks, particularly when dealing with datasets prone to multicollinearity issues.
Etat de lieux des espaces verts récréatifs dans la ville de Kinshasa : perception des Kinois et perspectives de planification et d’aménagement durable
Authors: Kaki Ngisila Blanchard , Mashini Dhi Mbita Mulenghe Jean-Claude , Musenga Tshiey Virginie 
Published: September 2024

But: Cette article a comme objectif global la mise en œuvre d’un modèle de planification et d’aménagement des espaces verts récréatifs dans la ville de Kinshasa.
Méthodologie: La méthodologie d’approche a été utilisé. L'approche probabiliste a permis de tirer un échantillon de 423 touristes qui ont répondu aux enquêtes par questionnaire et entretien. Les logiciels Word et Excel ont facilité la saisie et le traitement des données, suivi d’une analyse littéraire appuyée par une interprétation scientifique.
Résultats: Les résultats obtenus prouvent une disparition des espaces verts dans la ville de Kinshasa et les Kinois trouvent intérêts à ses espaces à des avis distincts (, 28% y vont pour se détendre et se reposer, 23% pour d’autres raisons beaucoup plus confidentielles, 18% préfèrent les espaces verts pour être au calme, ces espaces servent à présent pour organiser différentes cérémonies selon 10% de l’échantillon, 10% n’accordent aucune importance aux E.V., alors que 5% s’y promènent, 4% pour trouver de l’ombre et 2% pour répondre aux rendez-vous).
Contribution unique à la théorie, aux politiques et à la pratique: Au regard de ces résultats, il est donc nécessaire aux décideurs politico-administratifs de disposer à ces populations des EV. récréatifs écologiques suivant les normes technico-scientifiques proposées dans cette étude pour leur permettre de se satisfaire le besoin de récréation de façon décente, sécurisée et inclusive.

Abstract
Purpose: This article has as its overall objective the implementation of a model of planning and development of recreational green spaces in the city of Kinshasa.
Methodology: The approach methodology was used. The probabilistic approach made it possible to draw a sample of 423 tourists who responded to the surveys by questionnaire and interview. Word and Excel software facilitated the entry and processing of data, followed by a literary analysis supported by a scientific interpretation.
Findings: The results obtained prove a disappearance of green spaces in the city of Kinshasa and the people of Kinshasa find interest in these spaces in different opinions (28% go there to relax and rest, 23% for other much more confidential reasons, 18% prefer green spaces to be calm, these spaces are now used to organize different ceremonies according to 10% of the sample, 10% do not attach any importance to EVs, while 5% walk there, 4% to find shade and 2% to meet appointments).
Unique Contribution to Theory, Policy and Practice: In view of these results, it is therefore necessary for political and administrative decision-makers to provide these populations with ecological recreational EVs according to the technical and scientific standards proposed in this study to allow them to satisfy their need for recreation in a decent, secure and inclusive way.
Involvement of SoilbornePhytophthoraSpecies in Northeast Illinois Rapid Oak Decline and the Effect of Site Factors on the Disease
Authors: Watson Gary , Adams Stephanie 
Published: September 2024

AbstractBackgroundMature oaks across Northeastern Illinois declined unusually rapidly, and many died, starting in 2019 and 2020. Investigation into the cause was initiated in 2021. In the absence of signs of disease or insect infestations aboveground, site soil characteristics and precipitation history that could facilitate root problems were investigated.MethodsEighteen sites with rapidly declining oaks were identified. Root samples were collected and tested for the presence ofPhytophthoraspp. using DAS-ELISA. An investigation of soil conditions was conducted on one of the sites with declining and healthy trees growing on lower and slightly elevated ground, respectively.ResultsDAS-ELISA results were positive in 87% of the samples. All sites had fine textured soils classified as moderately to poorly drained, with high spring water tables. Topography was always very flat. The water table was near the surface for most of the spring on poorly drained sites with declining trees, and significantly higher than in the slightly elevated sites with better drainage and healthy trees. From 2018 to 2020, the region experienced the highest average spring rainfall for any 3 consecutive years in the last 70 years. This created soil conditions conducive to root disease development.ConclusionsPredominantly positive ELISA results on fine roots indicated thatPhytophthoraspecies are present in root systems when growing in moderately to poorly drained, fine textured soils across the Chicago region. The consecutive years of above-normal rainfall and poor soil drainage appears to have facilitated the development of root disease leading to rapid decline of oaks in the region.
Applications of Defense Elicitors to Roots of Containerized Eastern White Pine (Pinus strobus) Stimulate Increased Defensive Enzyme Activities of Fine Roots
Authors: Harley Angelina , Loyd Andrew L. , Malone Shealyn C. , Trowbridge Amy M. , Fite Kelby , Rigsby Chad M. 
Published: September 2024

AbstractThe expansion of the use of induced resistance (IR) has been, and remains, an attractive prospect for the management of woody plants, but little research has occurred assessing the ability of elicitors to induce the root defenses of woody plants. Eastern white pine (Pinus strobus) was used as a model plant to assess IR elicitation. Containerized plants were treated with phosphite (Phi), chitosan, curdlan (a β-1,3-glucan polymer), or silicon (Si) on 2022 June 7. The soluble phenolic levels, tissue levels of major resin acids (abietic and neoabietic), as well as the activities of peroxidase (POX), chitinase (CHI), and β-1,3-glucanase (βGLU) of fine roots were compared across elicitor treatments and nontreated controls on June 10, June 14, and June 27. There were no changes post-treatment to soluble phenolics or resin acids at any sampling point, but chitosan treatment resulted in an increase in POX and CHI activities, while curdlan increased CHI activity on June 10. On June 14, curdlan-treated plants had significantly higher POX and CHI activities, while Phi-treated plants had significantly higher POX activity. By June 27, curdlan- and Phi-treated trees had significantly higher CHI activities. Our data suggest that chitosan, curdlan, and phosphite stimulate biochemical responses and potentially prime root systems to respond to subsequent stresses, but there appears to be variation between these elicitors regarding rapid versus longer lasting IR effects.