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As an emerging field of current technological development, the heat dissipation performance of electronic packaging materials has become the key to determining product reliability. Therefore, the applied thermal interface materials (TIMs) need to simultaneously meet the performance indicators of thermal conductivity, mechanics, and insulation. Although BN had excellent in‐plane thermal conductivity and insulation performance, it is currently difficult to achieve vertical orientation of powder which leads the layered powder cannot complete a continuous and effective heat transfer path along the Z‐axis direction inside the composite material. In order to solve the above two problems, out‐of‐plane thermal conductive composite was prepared by introducing magnetic oriented method. In order to comprehensively evaluate the thermal conductivity, mechanical and electrical properties, BN@Fe3O4/EP magnetic oriented composites were compared with BN@PDA‐Al2O3/EP composite prepared by mechanical blending method. The vertical thermal conductivity of the magnetic oriented composite material was 2.24 W/(m·K) at 30 vol%, which was 3.39 times that of the blended composite material and 12.4 times that of pure EP. This proves that the magnetic oriented composite materials prepared by the research institute can meet the vertical heat transfer needs in the field of electronic packaging and have high research value in this area. Highlights: BN@Fe3O4 core–shell particles were prepared with both thermal conductivity and magnetic controllability.The thermosetting composites were prepared by heated through preliminary gel point and then cured at high temperature.The orientation of powder inside the matrix was constructed, resulted in excellent out‐of‐plane heat transfer performance.Comparisons were made between various properties of magnetic oriented materials and conventional blend materials.The magnetic orientation method is feasible in the field of electronic packaging. [ABSTRACT FROM AUTHOR]

With the emergence of the positive psychology trend, studying teacher resilience has gained tremendous momentum in mainstream education. Nonetheless, it has yet remained an underappreciated concept in English language education and research. The challenges that teachers experience in maintaining their resilience have also been the focus of a limited number of inquiries. To address these gaps, the present investigation set out to explore the challenges of sustaining resilience among Chinese and Iranian EFL teachers. In doing so, an open-ended questionnaire was administered to 18 Chinese and 15 Iranian EFL teachers, varying in age from 30 to 55 years old. Adopting a qualitative model of data analysis, the participants' responses to the open-ended questionnaire were analyzed through MAXQDA software. The analysis of Chinese and Iranian EFL teachers' answers resulted in the generation of 16 themes and 50 subthemes, demonstrating the challenges to teacher resilience. Findings indicated that both Chinese and Iranian EFL teachers perceived person-focused factors to be the major challenges of preserving teacher resilience. Other factors, including system-focused, context-focused, and process-focused factors, were conceived to be less problematic for teacher resilience. Finally, some major implications of the findings are presented and thoroughly discussed. [ABSTRACT FROM AUTHOR]

Ischemic stroke (IS) is a globally prevalent cerebrovascular disorder resulting from cerebral vessel occlusion, leading to significant morbidity and mortality. The intricate pathological mechanisms underlying IS complicate the development of effective therapeutic interventions. Ferroptosis, a form of programmed cell death (PCD) characterized by iron overload and accumulation of lipid peroxidation products, has been increasingly recognized as a key contributor to IS pathology. Traditional Chinese medicines (TCMs) have long been utilized in the management of IS, prompting extensive research into their potential as sources of natural ferroptosis inhibitors. This review investigates the critical role of ferroptosis in IS and provides a comprehensive analysis of current research on natural ferroptosis inhibitors identified in TCMs, aiming to lay a theoretical groundwork for the development of innovative anti-IS therapies. [ABSTRACT FROM AUTHOR]

Summary: This retrospective study analysed 106 acute myeloid leukaemia (AML) patients undergoing autologous haematopoietic stem cell transplantation (ASCT) to assess the impact of multiple small‐dose infusions of granulocyte‐colony‐stimulating factor (G‐CSF)‐mobilized haploidentical lymphocytes as post‐ASCT maintenance therapy. Among them, 50 patients received lymphocyte maintenance therapy, 21 received alternative maintenance therapy, and 35 received no maintenance therapy. Patients receiving lymphocyte maintenance therapy demonstrated significantly higher overall survival (OS) and disease‐free survival (DFS) compared to those without maintenance therapy, with 4‐year OS and DFS rates notably elevated. While there were no significant differences in recurrence rates among the three groups, lymphocyte maintenance therapy showcased particular benefits for intermediate‐risk AML patients, yielding significantly higher OS and DFS rates and lower relapse rates compared to alternative maintenance therapy and no maintenance therapy. The study suggests that multiple small‐dose infusions of G‐CSF‐mobilized haploidentical lymphocytes may offer promising outcomes for AML patients after ASCT, particularly for those classified as intermediate‐risk. These findings underscore the potential efficacy of lymphocyte maintenance therapy in reducing disease relapse and improving long‐term prognosis in this patient population. [ABSTRACT FROM AUTHOR]

Emotion regulation strategies can enhance teachers' well‐being and performance by enabling them to cope with the challenges and stressors of teaching. Personality traits, however, may affect teachers' vulnerability to depression and their capacity to regulate their emotions. To investigate how emotion regulation strategies mediated the relationship between EFL teachers' personality traits and depression, we invited 546 Chinese EFL teachers to complete the relevant online questionnaires. The Structural Equation Modelling (SEM) results revealed that teachers' personality traits directly influenced their depression levels, and that their depression levels negatively impacted their emotion regulation strategies. Furthermore, the results demonstrated that positive emotions mediated the relationship between teachers' personality traits and depression, suggesting that teachers with higher levels of positive emotions had lower levels of depression and more effective emotion regulation strategies. The findings implied that fostering positive emotions and emotion regulation strategies can improve teachers' mental health and teaching quality. The study also added to the knowledge of the role of emotion regulation strategies in the interplay between personality traits and depression. [ABSTRACT FROM AUTHOR]

Engagement and willingness to communicate (WTC) are crucial elements for second language (L2) learning. However, little is written about whether L2 learners demonstrate heterogeneous patterns of engagement and WTC in the classroom. This study aims to identify intraindividual differences in these two constructs and examine the roles of eight achievement emotions in predicting these profiles. To this end, 607 Chinese college L2 learners were recruited to complete three valid scales. Latent Profile Analysis (LPA) using Mplus 8.7 revealed a four-profile solution: high engagement-low engagement (C1: 26.85%), moderate engagement-moderate WTC (C2: 48.11%), moderate engagement-low WTC (C3: 14.83%), and low engagement-low WTC (C4: 10.21%). Multinomial logistic regression analyses revealed that negative achievement emotions did not predict these profiles, whereas positive ones did. Particularly, enjoyment was a positive predictor for all profiles, with a decreasing order of impact (C1 > C2 > C3 > C4). Hope did not differentiate between C1 and C2 but showed a decreasing influence on the subsequent profiles (C1 = C2 > C3 > C4). Lastly, pride was a significant predictor only for C4 (C1 = C2 = C3 > C4). This study also discusses the theoretical and pedagogical implications and suggests directions for future research. [ABSTRACT FROM AUTHOR]

The extensive deployment of wind farms has significantly impacted the detection capabilities of space–air bistatic radar (SABR) systems. Although space–time adaptive processing techniques are available, their performance is significantly degraded, and even unable to suppress clutter. This paper explores the geometric configuration of the SABR system and the selection of detection areas, establishing a space–time clutter model that addresses the effects of wind turbine clutter (WTC). Expressions for spatial and Doppler frequencies have been derived to deeply analyze the characteristics of clutter spreading. Building on this, the paper extends two-dimensional space–time data to three-dimensional azimuth–elevation–Doppler data. It proposes a three-dimensional space–time multi-beam (STMB) strategy incorporating the Ordering Points to Identify the Clustering Structure (OPTICS) clustering algorithm to suppress WTC effectively. This algorithm selects WTC samples and applies OPTICS clustering to the clutter-suppressed data to achieve this effect. Simulation experiments further verify the effectiveness of the algorithm. [ABSTRACT FROM AUTHOR]

This paper presents three methods aimed at enhancing the flashover voltage of the supporting insulator in a Tesla transformer. These methods include optimizing the maximum electric field on the insulator surface, adjusting the overall structure of the insulator, and changing the surface structure of the insulator. Ten insulator samples with different structures were designed based on electric field simulation. Subsequent experiments were conducted to validate the effectiveness of these methods in improving flashover voltage. On this basis, the supporting insulator of the Tesla transformer was redesigned, leading to an increased output voltage. The results are summarized in the following. First, optimization of the shielding rings of the cathode and anode reduces the electric field at the triple junction, which significantly increases the flashover voltage. Second, extending the inclination starting position of insulators with the same inclination angle effectively reduces the surface electric field intensity and increases the flashover voltage. Third, increasing the inclination angle within a certain range while keeping the inclination starting position constant extends the creepage distance and enhances the flashover voltage. However, excessively large inclination angles may lead to a decrease in flashover voltage due to excessive normal electric field. Fourth, grooving on the insulator surface at appropriate locations can inhibit the development of the streamer and improve flashover voltage. Finally, the supporting insulator of the Tesla transformer was redesigned based on these results, elevating the output voltage from 750 kV to over 1 MV. [ABSTRACT FROM AUTHOR]

In this paper, the finite‐time simultaneous stabilization problem of two nonlinear singular time‐delay Hamiltonian systems is investigated. Firstly, the two general nonlinear singular time‐delay Hamiltonian systems are transformed into their Hamiltonian differential‐algebraic forms by equivalent transformation, respectively, they are then converted to two strictly dissipative Hamiltonian forms via the state feedback method, and two strictly dissipative Hamiltonian systems are extended into a Hamiltonian one. Based on which, a suitable Hamiltonian function is constructed to analyze the finite‐time simultaneous stability and finite‐time robust simultaneous stabilization problem. Finally, an illustrative example is given to show the effectiveness of the results obtained. It should be pointed out that since there does not exist a finite‐time stability criterion on the nonlinear singular delay system, we adopt a new double compound asymptotic method. [ABSTRACT FROM AUTHOR]

The distribution structure of dielectric fillers is attracting more attention in designing composites with excellent dielectric properties and energy storage performances. Barium titanate (BT) and polyvinylidene fluoride (PVDF) were introduced to low‐density polyethylene (LDPE) to build the dielectric structure by modulating the phase structure of PVDF/LDPE and the distribution behavior of BT. The results showed that BT particles can be selectively distributed in the phase structure of PVDF/LDPE by controlling the surface modification of BT, which contributed much to the enhancement of dielectric properties and energy storage performances. The dielectric constant and discharge energy density of the composites with the selective distribution of core‐shell structured BT@PE in the LDPE phase of PVDF/LDPE blend were increased by 51% and 95% in comparison with PVDF/LDPE blend, respectively. By simulating with finite element analysis (FEA), the increased internal polarization and the decreased electric field distortion of PVDF/LDPE/BT@PE due to BT@PE distributed in the LDPE phase and the small dielectric constant difference between the LDPE/BT@PE phase and PVDF phase were the factors to enhance the dielectric constant and breakdown strength, which consequently enhance the energy storage performances of the composites. Highlights: Phase structure constructed with BT and BT@PE selectively distributed in PVDF/LDPE.Co‐enhanced dielectric constant and breakdown strength of PVDF/LDPE/BT@PE.Modulated polarization and electric field due to BT@PE in the LDPE phase of composites. [ABSTRACT FROM AUTHOR]

Extraction of molybdenum (Mo) from jordisite is difficult due to the amorphous state of MoS2. In this study, mechanical activation was employed to pretreat this type of ore with a low Mo content of 0.26%, and then molybdenum and uranium were both extracted from the milled ore using sulfuric acid. The effects of milling time, oxidant, and optimal leaching conditions were investigated in the laboratory. The results show that the mechanical activation will reduce the particle size and increase the specific surface area of the ore under certain milling conditions. Mechanical activation without oxidants in a hypoxia environment is not conductive to the recovery of molybdenum. When the oxidant of MnO2 is added during the milling process, the Mo recovery will increase greatly. The effect of mechanical activation on U recovery is not so obvious. The phenomenon of agglomerate will occur during the milling process, which will reduce Mo recovery seriously, especially when the milling time is more than 120 min. The Mo and U recovery can reach 84.52% and 61.39%, respectively, after optimization of sulfuric acid leaching process conditions. [ABSTRACT FROM AUTHOR]

Although it is well-established that reductions in the ratio of insulin to glucagon in the portal vein have a major role in the dysregulation of hepatic glucose metabolism in type-2 diabetes.sup.1-3, the mechanisms by which glucagon affects hepatic glucose production and mitochondrial oxidation are poorly understood. Here we show that glucagon stimulates hepatic gluconeogenesis by increasing the activity of hepatic adipose triglyceride lipase, intrahepatic lipolysis, hepatic acetyl-CoA content and pyruvate carboxylase flux, while also increasing mitochondrial fat oxidation--all of which are mediated by stimulation of the inositol triphosphate receptor 1 (INSP3R1). In rats and mice, chronic physiological increases in plasma glucagon concentrations increased mitochondrial oxidation of fat in the liver and reversed diet-induced hepatic steatosis and insulin resistance. However, these effects of chronic glucagon treatment--reversing hepatic steatosis and glucose intolerance--were abrogated in Insp3r1 (also known as Itpr1)-knockout mice. These results provide insights into glucagon biology and suggest that INSP3R1 may represent a target for therapies that aim to reverse nonalcoholic fatty liver disease and type-2 diabetes. A role and mechanism of action are identified for INSP3R1 in the stimulation of hepatic gluconeogenesis and mitochondrial oxidation by glucagon, suggesting that INSP3R1 may be a target for ameliorating dysregulation of hepatic glucose metabolism., Author(s): Rachel J. Perry [sup.1] [sup.2] , Dongyan Zhang [sup.1] , Mateus T. Guerra [sup.1] , Allison L. Brill [sup.2] , Leigh Goedeke [sup.1] , Ali R. Nasiri [sup.1] , [...]