bluuebunny/crossref_metadata_2025_split huggingface dataset:
Анализ перетворювача з чотирнадцятизонним регулюванням напруги
Authors: Михайленко В. , Святненко В. , Цивінський С. , Войтюк В. 
Published: December 2023

У статті проведено аналіз електромагнітних процесів в електричних колах з напівпровідниковими комутаторами. Створено математичну модель перетворювача з дванадцятизонним регулюванням вихідної напруги для аналізу електромагнітних процесів у напівпровідникових перетворювачах з широтно-імпульсним регулюванням. Наведено графіки, що відображають електромагнітні процеси у електричних колах. Математична модель напівпровідникового перетворювача також використовується для дослідження перехідних процесів у напівпровідникових перетворювачах з активно-індуктивним навантаженням. Розвинуто метод багатопараметричних функцій, які входять до алгоритмічних рівнянь аналізу усталених і перехідних процесів у розгалужених електричних колах з напівпровідниковими комутаторами і реактивними елементами, в напрямку урахування особливостей використання фазних і лінійних напруг мережі електроживлення. Розроблено нову математичну модель усталених і перехідних процесів у електричних колах напівпровідникових перетворювачів модуляційного типу з багатоканальним зонним використанням фазних напруг трифазної мережі живлення без урахування втрат електроенергії у комутаторах для швидкої оцінки впливу параметрів навантаження на характеристики регульованих синусоїдних і постійних напруг. Результати цієї роботи можна використати для розвитку методу багатопараметричних модулюючих функцій для спрощення аналізу перехідних процесів у електрикних колах без врахуванням втрат у ключових елементах.
Бібл. 4, іл. 3
Методи обробки даних відеокамер спостереження транспортного руху в реальному часі
Authors: Савастру С. , Стеценко I. 
Published: December 2023

Метою даної роботи є підвищення ефективності існуючих методів оцінки стану дорожнього трафіку за даними з камер відеоспостереження та розробка нових методів. Обʼєктом дослідження є програмні засоби та методи аналізу станудорожнього трафіку за даними з відеопотоку. У дослідженні розглянуто методи аналізу відеопотоку для оцінки трафіку на ділянці дороги, у тому числі показник завантаженості ділянки дороги Traffic Lane Congestion Ratio (TLCR), вказані обмеження методу його розрахунку, пов’язані з перспективою та запропоновано способи їх вирішення за допомогою введення показника Modified Traffic Lane Congestion Ratio (MTLCR). Вперше запропоновано показник інтенсивності руху Traffic Lane Intensity Ratio (TLIR), який дає змогу оцінити поточну інтенсивність трафіку на ділянці дороги та швидко адаптуватись до змін на дорозі. Система двох показників MTLCR та TLIR дає змогу точно визначати завантаженість дороги та інтенсивність руху транспорту. Розроблено архітектуру програмного засобу для моніторингу показників за даними з відеопотоку в реальному часі.
Бібл. 7, іл. 4, табл. 3
INTEGRATION OF OPERATION OF REGENERATORS OF GLASS FURNACES
Authors: Selikhov Yu.A. , Gorbunov K. A. 
Published: December 2023

The material of the article relates to the glass industry, namely to equipment for cooling the roof of regenerators of glass melting furnaces and can be used in the construction of new or reconstruction of existing regenerators.
When the refractories of industrial glass melting furnaces are destroyed, an intensive decrease in the wall thickness of the melting basin occurs, which leads to a significant increase in the temperature of the outer surface of the walls and, accordingly, an increase in heat losses. The maximum destruction of the refractory masonry of the walls of the melting basin is observed at the level of the mirror of the melted glass. There is uneven wear along the height and perimeter of the pool. The rate of destruction of the masonry is determined by the stability of the used refractories, the temperature regime of glass melting, and the design features of the units.
The technical task of the article is: to increase the service life of the refractory masonry of the glass furnace regenerator roof; utilization of the heat of the outer masonry surface of the regenerator roof, as well as improvement of its cooling system by using water cooling of the outer surface of the regenerator roof; saving fuel consumed to heat the same amount of coolant in boiler equipment.
The proposed cooling of the outer surface of the regenerator roof makes it possible to: reduce the temperature of the outer surface of the roof to the level of 30 °C and at the same time make the most of the heat of the outer surface of the regenerator roof, which has not been used before, for example, to obtain hot water from a heat supply system, and this makes it possible to save fuel costs, which are necessary for the operation of boiler equipment to heat the same amount of coolant; to ensure a more uniform distribution of temperature fields over the entire plane of the regenerator roof by using flat collectors of a special design, which, in turn, makes it possible to slow down the process of destruction of the refractory lining of the regenerator roof. The thermocouples installed in the pipelines make it possible to monitor the change in the temperature of the coolant in the collectors, and in the event of an increase in the surface temperature of the collectors, the automation increases the flow of the coolant in the pipelines. The collectors are equipped with pressure valves, when the temperature of the coolant in the collector is above 100 °C, it can boil in the collector and then the pressure valve equalizes the pressure in the collector.
Interference Management in Massive MIMO System for 5G Networks: A survey
Authors: Aikoun Yves Fidèle , Yin Sheng 
Published: December 2023

Abstract
The advent of 5th Generation (5G) networks have created new challenges for wireless communication systems due to the increasing demand for high data rates, low latency, and ubiquitous connectivity. Massive Multiple-Input Multiple-Output (MIMO) systems have emerged as one of the key technologies for 5G networks, which can support multiple users simultaneously and improve system capacity and coverage. However, the use of multiple antennas in the same area to serve very large number of users can generate interference between transmitted signals, which can degrade the received signals as well as the system efficiency. Therefore, interference management techniques are essential in massive MIMO systems to reduce the impact of interference and improve system performance. This research aims to investigate interference management techniques in massive MIMO systems including beamforming method, non-orthogonal multiple access (NOMA), and joint transmission coordinated multi-point (JT-CoMP). The objective is to analyze the performance of these techniques in terms of system capacity, coverage, and reliability and compare their effectiveness in reducing interference. The research findings will provide valuable insights into the most effective interference management techniques for 5G networks and inform the design and optimization of the systems.
Understanding Neuromodulation Pathways in tDCS: Brain Stem Recordings in Rats During Trigeminal Nerve Direct Current Stimulation
Authors: Laughlin Myles Mc , Majdi Alireza , Asamoah Boateng 
Published: December 2023

Abstract

Recent evidence suggests that transcranial direct current stimulation (tDCS) indirectly influences brain activity through cranial nerve pathways, particularly the trigeminal nerve. However, the electrophysiological effects of direct current (DC) stimulation on the trigeminal nerve (DC-TNS) and its impact on trigeminal nuclei remain unknown. These nuclei exert control over brainstem centers regulating neurotransmitter release, such as serotonin and norepinephrine, potentially affecting global brain activity. To investigate how DC-TNS impacts neuronal activity in the principal sensory nucleus (NVsnpr) and the mesencephalic nucleus of the trigeminal nerve (MeV), twenty male Sprague Dawley rats (n = 10 each nucleus) were anesthetized with urethane. DC stimulation, ranging from 0.5 to 3 mA, targeted the trigeminal nerve's marginal branch. Simultaneously, single-unit electrophysiological recordings were obtained using a 32-channel silicon probe, comprising three one-minute intervals: pre-stimulation, DC stimulation, and post-stimulation. Xylocaine was administered to block the trigeminal nerve as a control. DC-TNS significantly increased neuronal spiking activity in both NVsnpr and MeV, returning to baseline during the post-stimulation phase. When the trigeminal nerve was blocked with xylocaine, the robust 3 mA trigeminal nerve DC stimulation failed to induce increased spiking activity in the trigeminal nuclei. Our results offer initial empirical support for trigeminal nuclei activity modulation via DC-TNS. This discovery supports the hypothesis that cranial nerve pathways may play a pivotal role in mediating tDCS effects, setting the stage for further exploration into the complex interplay between peripheral nerves and neural modulation techniques.
Epigenetic Modulation of Short Interspersed Nuclear Elements Activity Influences Neural Precursor Cell Proliferation
Authors: Jiang Yan , Sun Daijing , Zhu Yueyan , Peng Wenzhu , Weng Jie , Dong Shulong , Li Jiaqi , Chen Qi , Ge Chuanhui , Liao Liyong , Dong Yuhao , Liu Yun , Meng Weida 
Published: December 2023

Abstract
Transposable elements (TEs) play a critical role in modulating gene expression during neurodevelopment. Short Interspersed Nuclear Elements (SINEs), a significant subset of TEs, contribute to gene regulation by generating non-coding transcripts and functioning as enhancers. Moreover, SINEs harbor binding sites for the CCCTC-binding factor (CTCF), pivotal in orchestrating chromatin organization. However, the exact function of SINEs in neurodevelopment remains elusive. In our study, we conducted a comprehensive genome-wide analysis using ATAC-seq, ChIP-seq, WGBS, in situ Hi-C, and RNA-seq. We elucidated the intricate epigenetic regulations governing a relatively conserved subset of SINEs in mouse neural precursor cells (NPCs). Our findings revealed that the SET domain bifurcated histone lysine methyltransferase 1 (SETDB1) orchestrates H3K9me3, in conjunction with DNA methylation, to restrict SINEs' chromatin accessibility in NPCs. Loss of SETDB1 granted CTCF access to previously restricted SINE elements, facilitating novel chromatin loop formation and influencing cell cycle genes. Disruptions in cell proliferation were notably observed both in vitro and in vivo following genetic ablation of SETDB1 in NPCs. In summary, our study sheds light on the comprehensive epigenetic regulation of SINEs, suggesting their role in maintaining chromatin integrity and stemness in NPCs.
Enhancing Isochrysis zhangjiangensis Yield: Role of small peptide and mineral chelates
Authors: Xia yutong , Li Keyi , Han Jianda , Gao Ebin , Chen Huayou 
Published: December 2023

Abstract
The high-density cultivation of bivalves necessitates a steady supply of microalgae as feed. However, microalgae often face reduced yields due to the lack of cost-effective and safely efficient nitrogen and essential minerals sources. Therefore, this study opted for Isochrysis zhangjiangensis, a microalga favored by bivalves, for experimentation. Various small peptides and minerals were added separately to the F/2 culture medium for microalgae cultivation.The results indicate that adding 0.15g/L of glutathione as a nitrogen source, copper glycinate as a copper source, or calcium aspartate as a calcium source can enhance algal density. However, when ferrous glycinate is used as an iron source, zinc glycinate as a zinc source, or manganese glycinate as a manganese source, there is no significant difference in growth compared to the inorganic mineral group (P < 0.05).In conclusion, small peptides were found to be more effective in promoting the growth of Isochrysis zhangjiangensis than inorganic nitrogen sources. Furthermore, appropriate chelated mineral forms were demonstrated to be more conducive to the growth of Isochrysis zhangjiangensis than their inorganic counterparts. This research underscores the significance of selecting suitable organic nitrogen sources and mineral forms to enhance the production of Isochrysis zhangjiangensis.
Fungal pleural infection due to Microascus gracilis with pulmonary aspergillosis after COVID-19 pneumonia
Authors: Hu Zhimin , Mao Lina , Deng Tiying , Su Bintao , Yang Yi , Dong Binlin , Xu Qing , Yang Shuo 
Published: December 2023

Abstract
Background: Scopulariopsis/Microascus is a rare but devastating pathogen due to its intrinsic resistance to nearly all available antifungal agents. Microascus gracilis, an ascomycetous mold in the order Microascales, family Microascaceae, have recently emerged as significant invasive pathogens causing opportunistic infections.
Objectives and Methods: We present a case of pleural infection caused by M.gracilis in an immunocompromised man. In order to further understand the characteristics of the pathogen isolated from the patient, we identified the strain through mycological characteristics, matrix-assisted laser desorption/ionization(MALDI) time-of-flight(TOF) mass spectrometry (MALDI-TOF MS) and internal transcribed spacer (ITS)-based sequencing, performed in vitro drug susceptibility testing against common antifungal agents. Moreover, we assessed the lymphocyte subsets and programmed cell death protein 1(PD-1) expression in peripheral blood and pleural effusion to monitor the efficacy of therapy with thymosin-α-1 and intravenous immunoglobulin.
Results: Filamentous fungi isolated from chest tube and pleural fluid were identified as M.gracilis based on classical morphology, mass spectrometry and molecular biology methods. The susceptibility results in vitro revealed that multiple antifungal agents were inactive against the strain. The adjuvant immunomodulatory treatment successfully upgraded the level of CD3+T and CD4+T cells, while downgraded the level of CD3+PD-1+T and CD4+PD-1+T cells both in peripheral blood and pleural effusion.
Conclusions: The immunocompromised host with opportunistic M.gracilis infection, rapid and accurate recognize thorough direct microscopic testing with calcofluor white and MOLDI-TOF MS is the key to achieve definite diagnosis, and a combination of antifungal therapy with immunomodulatory therapy is vital for improving survival.
Recent increase of atypical forms of invasive meningococcal disease
Authors: Taha Samy , Deghmane Ala-Eddine , Taha Muhamed-Kheir 
Published: December 2023

Abstract
Background: Invasive meningococcal disease (IMD) cases declined upon the implementation of non-pharmaceutical interventions (NPI) to control the COVID-19 pandemic but rebounded since the second half of 2022 in numbers with genotypical changes of the strains. We explored in this report associated modifications in the clinical presentations of IMD.
Methods: We conducted a retrospective descriptive study using the French National Reference Centre Database for meningococci between 2015-2022. We scored serogroups, sex, age groups, clinical presentations and clonal complexes of the corresponding isolates.
Findings: Non-meningeal atypical forms of IMD increased significantly upon easing of NPI, such as bacteriemic meningococcal pneumonia and abdominal forms. They represented 6% and 8% of all IMD forms and were significantly linked to serogroups Y and W respectively, to older adults for bacteriemic pneumonia and to young adults for abdominal presentations. These atypical forms were also significantly associated with more early mortality.
Interpretation: An upsurge of atypical forms in France since the lifting of COVID-19-related NPI accompanied the rebound of IMD cases. An increase in IMD burden may be expected and urge to enhance preventive strategies against IMD by adapting current vaccination strategies to epidemiological changes.
Contralateral C7 nerve transfer to three recipient nerves-an optional surgical method in total brachial plexus avulsion combined with accessory and phrenic nerve injury
Authors: Guo Jinding , Zhao Xin , Lao Jie , Gao Kaiming 
Published: December 2023

Abstract
Purpose
The purpose of this study is to present our long term follow up outcome on the use of the contralateral C7 (CC7) transfer to reinnervate three recipient nerves in the patients with total brachial plexus avulsion injury (BPAI).
Methods
We retrospectively reviewed data from 13 patients with total BPAI. All of the 13 patients were confirmed with phrenic nerve and spinal accessary nerve total injury on the affected side. 5 patients were 20 years or younger and 8 were older than 20 years at the time of surgery. In 1st stage, the entire CC7 was harvested and was transferred to pedicled ulnar nerve and the suprascapular nerve with sural nerve grafted. It was performed less than 6 months after injury in 10 patients; 3 underwent the procedure more than 6 months but less than 12 months. The ulnar nerve was transferred to median nerve and biceps branch in the 2nd stage about 4 to 8 months after the 1st stage.
Results
The recovery rate was 84.62% (11/13) for shoulder abduction, 53.85% (7/13) for shoulder external rotation, 84.62% (11/13) for elbow flexion, 61.54% (8/13) for wrist and finger flexor and 53.85% (7/13) in median nerve area sensation. The recovery of median nerve in younger group was significantly better than the elder group (p < 0.05).
Conclusions
The use of CC7 transfer for simultaneous repair of suprascapular nerve, median nerve and biceps branch is an effective procedure in treating total BPAI. This technique may become an option for treatment of total BPAI combined with phrenic nerve and spinal accessary nerve injured case.
Eye-AD: A Graph-based Model for Early-onset Alzheimer’s Disease and Mild Cognitive Impairment Detection based on Retinal OCTA Images
Authors: Zhao Yitian , Hao Jinkui , Kwapong William , Xu Yanwu , Shen Ting , Fu Huazhu , Lu Qinkang , Liu Shouyue , Zhang jiong , Liu Yonghuai , Zhao Yifan , Zheng Yalin , Frangi Alejandro , Liu Jiang , Zhang Shuting 
Published: December 2023

Abstract
Alzheimer's disease (AD) is a rising healthcare challenge worldwide. There is currently no simple and affordable test to accurately detect AD at scale. In this work we propose a novel deep learning framework (Eye-AD) to detect Early-onset Alzheimer's Disease (EOAD) and Mild Cognitive Impairment (MCI), using retinal microvasculature and choriocapillaris acquired from optical coherence tomography angiography (OCTA). The proposed Eye-AD model is a multilevel graph representation approach, which utilizes the intra- and inter-instance relationships of different retinal layers.
We used a total of 5,751 OCTA images obtained from 1,671 participants of a retrospective, multi-centre study to train, validate and test the Eye-AD model. The experimental results demonstrate the superior performance of our model in both EOAD detection (internal data: AUC = 0.9355, external data: AUC = 0.9007) and MCI detection (internal data: AUC =0.8630, external data: AUC = 0.8037). Furthermore, we explored the associations between retinal structural biomarkers in OCTA images and EOAD/MCI, and the results align well with the conclusions drawn from our deep learning interpretability analysis. Our findings provide further evidence that retinal OCTA imaging, coupled with artificial intelligence, will serve as a rapid, non-invasive and affordable approach for AD-related diseases detection and risk assessment.
Implementation of WHO guidelines for cervical cancer screening, diagnosis and treatment: Knowledge and perceptions of health providers from Argentina
Authors: Arrossi Silvina , Straw Cecilia , Antelo Victoria Sánchez , Paolino Melisa , Baena Armando , Forestier Mathilde , Rol Maryluz , Almonte Maribel 
Published: December 2023

Abstract

BackgroundThe 2021 the World Health Organization (WHO) guidelines on cervical cancer screening and treatment provide countries with evidence-based recommendations to accelerate the disease elimination. However, evidence shows that adherence by health providers to screening guidelines is low. We conducted a study in Argentina aimed to analyze knowledge and perceptions regarding the 2021 WHO Guidelines by health providers.
Methods A qualitative study was carried out based on individual, semi-structured interviews with health providers who specialize in gynecology (n=15). The themes explored were selected and analyzed using domains and constructs of the Consolidated Framework for Implementation Research.
Results Although health providers perceive WHO as a reliable institution, they do not know the 2021 guidelines, their supporting evidence, and its elaboration process. Their clinical practice is mainly guided by local recommendations developed by national professional medical associations (PMAs). For interviewees, dissemination of WHO guidelines should be done through health authorities and national PMAs, mainly through in-service training. Health providers had a positive assessment regarding WHO Recommendation 1 (screen, triage, treatment for women aged 30+ with HPV-testing every 5 to 10 years) and they perceived a favorable climate for its implementation. HPV-testing followed by triage was considered a low complexity practice, enabling a better detection of HPV, a better selection of the patients who will need diagnosis and treatment, and a more efficient use of health system resources. However, they suggested adapting this recommendation by removing screening interval beyond 5 years. WHO Recommendation 2 (screen-and-treat approach with HPV-testing for women aged 30+ every 5 to 10 years) was predominantly rejected by interviewees, was considered an algorithm that does not respond to women's needs and that was not adequate for the Argentinean context. Regarding the HPV-test modality, clinician-collected tests was the preferred mode. Health providers considered that HPV self-collection should be used primarily among socially vulnerable women to increase screening coverage.
Conclusions Dissemination of WHO guidelines among health providers should be widely carried out, especially in settings that could benefit of a screen-and-treat approach. It is essential to identify areas of partnership and collaboration with PMAs in the implementation of WHO guidelines.
Assessment of Universal Thermal Comfort Index (UTCI) using the WRF-UCM model over a Metropolitan City in India
Authors: Peri Subrahmanya Hari Prasad , Satyanarayana ANV 
Published: December 2023

Abstract
Rapid urbanization leads to an increase in urban air temperature, considerably affecting health, comfort and the quality of life in urban spaces. The accurate assessment of outdoor thermal comfort is crucial for urban health. In the present study, a high-resolution mesoscale model coupled with a layer Urban Canopy Model (WRF-UCM) is implemented over the city of Hyderabad (17.3850° N, 78.4867° E) to simulate urban meteorological conditions during the summer and winter period of 2009 and 2019. The universal thermal climate index (UTCI) has been estimated using the model-derived atmospheric variables and a human biometeorology parameter to assess the linkages between the outdoor environment and thermal comfort. Results revealed that during summer, the city experiences nearly 10 hours of extreme to strong thermal stress, whereas moderate thermal and slight cold stress are experienced during winter. The urban area in Hyderabad expanded from 5–15% during the study period, leading to a 3℃ (1.5 ℃) increase in land surface temperature and a 1 to 1.5 ℃ (0.5 to 1 ℃ ) rise in air temperature at 2m height and UTCI during summer (winter) time. The analysis reveals that the maximum UTCI values were noticed over built-up areas compared to other land classes during daytime as well as nighttime. The results derived from the present study have shown the performance of WRF-UCM-derived UTCI reasonably portrayed the significant impact of urbanization on thermal comfort over the city and provided useful insights with regard to urban comfort and welfare.