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  • Open Access

    ARTICLE

    A Novel Graph Structure Learning Based Semi-Supervised Framework for Anomaly Identification in Fluctuating IoT Environment

    Weijian Song1,, Xi Li1,, Peng Chen1,*, Juan Chen1, Jianhua Ren2, Yunni Xia3,*

    CMES-Computer Modeling in Engineering & Sciences, Vol.140, No.3, pp. 3001-3016, 2024, DOI:10.32604/cmes.2024.048563

    Abstract With the rapid development of Internet of Things (IoT) technology, IoT systems have been widely applied in healthcare, transportation, home, and other fields. However, with the continuous expansion of the scale and increasing complexity of IoT systems, the stability and security issues of IoT systems have become increasingly prominent. Thus, it is crucial to detect anomalies in the collected IoT time series from various sensors. Recently, deep learning models have been leveraged for IoT anomaly detection. However, owing to the challenges associated with data labeling, most IoT anomaly detection methods resort to unsupervised learning techniques.… More >

  • Open Access

    ARTICLE

    Sciadopitysin exerts anticancer effects on HepG2 hepatocellular carcinoma cells by regulating reactive oxygen species-mediated signaling pathways

    YAN-NAN LI1,#, YUN-HONG XIU2,#, YAN-JUN TANG3, JING-LONG CAO1, WEN-SHUANG HOU1, AN-QI WANG1, TIAN-ZHU LI4,*, CHENG-HAO JIN1,3,5,*

    BIOCELL, Vol.48, No.7, pp. 1055-1069, 2024, DOI:10.32604/biocell.2024.050515

    Abstract Objectives: Sciadopitysin (SP) is a flavonoid in Ginkgo biloba that exhibits various pharmacological activities. This study aimed to investigate its antitumor effects and the underlying molecular mechanism of SP in hepatocellular carcinoma (HCC) cells. Methods: Network pharmacology was used for target prediction analysis. Cell Counting Kit-8 (CCK-8) assay was used to test the cell viability. Flow cytometry was used to test the cell cycle distribution, apoptosis status, and reactive oxygen species (ROS) levels. Transwell and wound-healing assay was used to test the migration effect of SP on HepG2 cells. Western Blot assay was used to… More > Graphic Abstract

    Sciadopitysin exerts anticancer effects on HepG2 hepatocellular carcinoma cells by regulating reactive oxygen species-mediated signaling pathways

  • Open Access

    ARTICLE

    The Influence of Preschool Teachers’ Social Skills on Job Burnout: A Moderated Mediation Model

    Yuanqing He*, Xinyue Yu, Yu Xia, Yanhua Cao

    International Journal of Mental Health Promotion, Vol.26, No.6, pp. 463-474, 2024, DOI:10.32604/ijmhp.2024.051909

    Abstract Background: Teacher burnout is a serious issue in the field of education, particularly in early childhood education, where teachers face high levels of work stress and emotional labor, leading to emotional exhaustion and job burnout. However, past research has not sufficiently explored the mechanisms of social skills, empathy, and mindfulness in mitigating teacher burnout. Therefore, this study aims to investigate the relationship between preschool teachers’ social skills, empathy, and mindfulness with job burnout, in order to provide theoretical basis and practical guidance for reducing teacher burnout. Methods: This research utilized a convenience sampling approach to… More >

  • Open Access

    ARTICLE

    A Numerical Investigation of the Effect of Boundary Conditions on Acoustic Pressure Distribution in a Sonochemical Reactor Chamber

    Ivan Sboev1,*, Tatyana Lyubimova2,3, Konstantin Rybkin3, Michael Kuchinskiy2,3

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.6, pp. 1425-1439, 2024, DOI:10.32604/fdmp.2024.051341

    Abstract The intensification of physicochemical processes in the sonochemical reactor chamber is widely used in problems of synthesis, extraction and separation. One of the most important mechanisms at play in such processes is the acoustic cavitation due to the non-uniform distribution of acoustic pressure in the chamber. Cavitation has a strong impact on the surface degradation mechanisms. In this work, a numerical calculation of the acoustic pressure distribution inside the reactor chamber was performed using COMSOL Multiphysics. The numerical results have revealed the dependence of the structure of the acoustic pressure field on the boundary conditions More > Graphic Abstract

    A Numerical Investigation of the Effect of Boundary Conditions on Acoustic Pressure Distribution in a Sonochemical Reactor Chamber

  • Open Access

    ARTICLE

    Modeling of Leachate Propagation in a Municipal Solid Waste Landfill Foundation

    Nadezhda Zubova*, Andrey Ivantsov

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.6, pp. 1407-1424, 2024, DOI:10.32604/fdmp.2024.051130

    Abstract The study deals with the numerical modeling of leachate distribution in the porous medium located under a municipal solid waste disposal landfill (MSWLF). The considered three-layer system is based on geological data obtained from field measurements. For simplicity, the problem is investigated by assuming a two-component approach. Nevertheless, the heat produced by landfills due to biological and chemical processes and the thermal diffusion mechanism contributing to pollution transport are taken into account. The numerical modeling of the propagation of leachate in the considered layered porous medium is implemented for parameters corresponding to natural soil and More >

  • Open Access

    ARTICLE

    Transient Analysis of a Reactor Coolant Pump Rotor Seizure Nuclear Accident

    Mengdong An1, Weiyuan Zhong1, Wei Xu2, Xiuli Wang1,*

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.6, pp. 1331-1349, 2024, DOI:10.32604/fdmp.2023.046604

    Abstract The reactor coolant pump (RCP) rotor seizure accident is defined as a short-time seizure of the RCP rotor. This event typically leads to an abrupt flow decrease in the corresponding loop and an ensuing reactor and turbine trip. The significant reduction of core coolant flow while the reactor is being operated at full load can have very negative consequences. This potentially dangerous event is typically characterized by a complex transient behavior in terms of flow conditions and energy transformation, which need to be analyzed and understood. This study constructed transient flow and rotational speed mathematical More > Graphic Abstract

    Transient Analysis of a Reactor Coolant Pump Rotor Seizure Nuclear Accident

  • Open Access

    REVIEW

    Molecular and cellular mechanisms of neuroprotection by oligopeptides from snake venoms

    CARLOS ALBERTO-SILVA*, BRENDA RUFINO DA SILVA

    BIOCELL, Vol.48, No.6, pp. 897-904, 2024, DOI:10.32604/biocell.2024.050443

    Abstract Venom snake-derived peptides have multiple biochemical, pharmacological, and toxicological profiles, allowing for the discovery of new medicinal products and therapeutic applications. This review specifically examines the fundamental elements of neuroprotection offered by different oligopeptides derived from snake venom. It also includes a brief evaluation of short peptides that are being considered as potential therapeutic agents. Proline-rich peptides and tryptophyllin family peptides isolated from the crude venom of Viperidae family snakes, specifically Bothrops atrox, Bothrops jararaca, and Bothrops moojeni, have been shown to have pro-survival properties, the ability to reduce oxidative stress, and the ability to promote cell viability More >

  • Open Access

    ARTICLE

    Bhlhe40 protects cochlear hair cell-like HEI-OC1 cells against HO‑triggered oxidative injury

    LITING WEN#, XIAOXIA ZENG#, PEIXIONG CHEN, DAPENG ZHAO, YANGYANG LI, XIANHAI ZENG*

    BIOCELL, Vol.48, No.6, pp. 991-999, 2024, DOI:10.32604/biocell.2024.050219

    Abstract Background: Cochlear hair cell injury is a common pathological feature of hearing loss. The basic helix-loop-helix family, member e40 (Bhlhe40), a gene belonging to the basic helix-loop-helix (bHLH) family, exhibits strong transcriptional repression activity. Methods: Oxidative damage, in House Ear Institute-Organ of Corti 1 (HEI‑OC1) cells, was caused using hydrogen peroxide (HO). The Ad-Bhlhe40 particles were constructed to overexpress Bhlhe40 in HEI-OC1 cells. Various assays including cell counting kit-8 (CCK-8), terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling assay (TUNEL), flow cytometry, immunofluorescence, and corresponding commercial kits were employed to investigate the impacts of Bhlhe40 on cell viability, apoptosis,… More > Graphic Abstract

    <i>Bhlhe40</i> protects cochlear hair cell-like HEI-OC1 cells against HO‑triggered oxidative injury

  • Open Access

    ARTICLE

    Investigation of Cavitation in NaCl Solutions in a Sonochemical Reactor Using the Foil Test Method

    Michael Kuchinskiy1,2,*, Tatyana Lyubimova1,2, Konstantin Rybkin2, Anastasiia Sadovnikova2, Vasiliy Galishevskiy2

    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.5, pp. 1093-1102, 2024, DOI:10.32604/fdmp.2024.050059

    Abstract Ultrasonic baths and sonochemical reactors are widely used in industrial applications dealing with surface cleaning and chemical synthesis. The processes of erosion, cleaning and structuring of the surface can be typically controlled by changing relevant influential parameters. In particular, in this work, we experimentally investigate the effect of NaCl concentration (0–5.5 mol/L) on the erosion of an aluminum foil under ultrasonic exposure at a frequency of 28 kHz. Special attention is paid to the determination of cavitation zones and their visualization using heat maps. It is found that at low NaCl concentration (0.3 mol/L), the More > Graphic Abstract

    Investigation of Cavitation in NaCl Solutions in a Sonochemical Reactor Using the Foil Test Method

  • Open Access

    ARTICLE

    Three Combined Treatments, a Novel HDAC Inhibitor OBP-801/YM753, 5-Fluorouracil, and Paclitaxel, Induce G2 Phase Arrest Through the p38 Pathway in Human Ovarian Cancer Cells

    Makoto Akiyama*†, Yoshihiro Sowa*, Tomoyuki Taniguchi*, Motoki Watanabe*, Shingo Yogosawa, Jo Kitawaki,Toshiyuki Sakai*

    Oncology Research, Vol.25, No.8, pp. 1245-1252, 2017, DOI:10.3727/096504017X14850164661097

    Abstract Ovarian cancer is the most lethal disease among gynecological malignancies. More effective therapy is required to counter high recurrence rates and chemotherapy resistance. We investigated the efficacy and molecular mechanisms of three combined treatments (TCTs)—a novel histone deacetylase (HDAC) inhibitor OBP-801/YM753, 5-fluorouracil (5-FU), and paclitaxel (PTX)—in human ovarian cancer SKOV-3 and OVCAR-3 cells. The inhibition of cell growth was stronger with TCTs than with each single agent and with two combined treatments. The TCTs significantly induce G2 phase arrest in both cell lines. We then analyzed the molecular mechanisms and found that the TCTs increased the More >

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