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The necessity for the development and enhancement of teacher commitment to satisfying students' learning needs in response to the COVID crisis is increasingly highlighted. It is not known, however, how to increase commitment in schoolteachers to boost online teaching in light of the fact that they, too, are struggling to cope with the rapid, unexpected change. A total of 601 teachers from primary and secondary schools across China participated in this study, with an average teaching experience of 15.9 years. Structural equation modelling was used to verify the significance of contextual, cognitive, affective and behavioural factors in boosting teachers' commitment to online teaching. The findings demonstrated that teacher agency played a complete mediating role in the predicting power of other factors to teacher commitment. Therefore, it was recommended that attention be paid to the practice and opportunities for teacher agentic actions, which necessitates real encounters with online teaching, allowing teachers to act meaningfully and initiate a new set of teaching strategies.

BaCe0.8Fe0.1Ni0.1O3−δ (BCFN) in a perovskite structure is impregnated consecutively by BCFN solution and BCFN suspension into a phase-inversion prepared NiO–Gd0.1Ce0.9O2−δ (GDC) scaffold as an anode for solid oxide fuel cells (SOFCs) with on-cell dry reforming of methane (DRM). The whole pore surface of the scaffold is covered by small BCFN particles formed by BCFN solution impregnation; the large pores near the scaffold surface are filled by BCFN aerogels with a high specific surface area produced by BCFN suspension impregnation, which act as a catalytic layer for on-cell DRM. After reduction, the anode consists of a Ni–GDC scaffold and BCFN particles with exsolved FeNi3 nanoparticles. This BCFN-impregnated Ni–GDC anode has higher electrical conductivity, electrochemical activity, and resistance to carbon deposition, with which the cell shows maximum power densities between 1.44 and 0.92 W·cm−2 when using H2 and between 1.09 and 0.50 W·cm−2 when using CO2–CH4 at temperatures ranging from 750 to 600 °C. A stable performance at 400 mA·cm−2 and 700 °C is achieved using 45% CO2–45% CH4–10% N2 for more than 400 h without carbon deposition, benefiting from the impregnated BCFN aerogel with a high specific surface area and water adsorbability.

Abstract The bioactivity of interferon-γ (IFN-γ) in cancer cells in the tumor microenvironment (TME) is not well understood in the current immunotherapy era. We found that IFN-γ has an immunosuppressive effect on colorectal cancer (CRC) cells. The tumor volume in immunocompetent mice was significantly increased after subcutaneous implantation of murine CRC cells followed by IFN-γ stimulation, and RNA sequencing showed high expression of B7 homologous protein 4 (B7H4) in these tumors. B7H4 promotes CRC cell growth by inhibiting the release of granzyme B (GzmB) from CD8+ T cells and accelerating apoptosis in CD8+ T cells. Furthermore, interferon regulatory factor 1 (IRF1), which binds to the B7H4 promoter, is positively associated with IFN-γ stimulation-induced expression of B7H4. The clinical outcome of patients with CRC was negatively related to the high expression of B7H4 in cancer cells or low expression of CD8 in the microenvironment. Therefore, B7H4 is a biomarker of poor prognosis in CRC patients, and interference with the IFN-γ/IRF1/B7H4 axis might be a novel immunotherapeutic method to restore the cytotoxic killing of CRC cells.

Abstract Host survival depends on the elimination of virus and mitigation of tissue damage. Herein, we report the modulation of D-mannose flux rewires the virus-triggered immunometabolic response cascade and reduces tissue damage. Safe and inexpensive D-mannose can compete with glucose for the same transporter and hexokinase. Such competitions suppress glycolysis, reduce mitochondrial reactive-oxygen-species and succinate-mediated hypoxia-inducible factor-1α, and thus reduce virus-induced proinflammatory cytokine production. The combinatorial treatment by D-mannose and antiviral monotherapy exhibits in vivo synergy despite delayed antiviral treatment in mouse model of virus infections. Phosphomannose isomerase (PMI) knockout cells are viable, whereas addition of D-mannose to the PMI knockout cells blocks cell proliferation, indicating that PMI activity determines the beneficial effect of D-mannose. PMI inhibition suppress a panel of virus replication via affecting host and viral surface protein glycosylation. However, D-mannose does not suppress PMI activity or virus fitness. Taken together, PMI-centered therapeutic strategy clears virus infection while D-mannose treatment reprograms glycolysis for control of collateral damage.

Excessive local movement and inflammation are common problems in the process of wound repair, which lead to failure of later repair. In order to solve this problem, inspired by the octopus sucker structure, we successfully developed a photocrosslinked hydrogel that can adsorb skin surface fascia. In addition, extracellular vesicles from human bone marrow mesenchymal stem cells are encapsulated in the octopus like sucker structure. The morphology and structure of extracellular vesicles in bone marrow mesenchymal stem cells were detected by scanning electron microscopy and particle size analysis. Through iTRAQ, we tested the expression of angiogenesis related proteins contained in extracellular vesicles. Design small interfering RNA to verify its impact on angiogenic related genes and proteins. Macrophage polarization was detected by immunofluorescence. The expression of new blood vessels was detected by constructing a skin defect model and injecting microfil contrast agent into the heart. When the sucker is firmly adsorbed on the damaged wound, the sucker will slowly degrade. Using its delivery system, it is observed that the extracellular vesicles are released in the wound. Through iTRAQ, it was found that the angiogenesis regulator (angiopoietin-like 4, angiopoietin-like 3 and aminopeptidase N) released in the extracellular vesicles regulates collagen deposition, angiogenesis, and inhibits macrophage aggregation. In addition, the slowly released extracellular vesicles will further inhibit the polarization of proinflammatory macrophages. This biological behavior can provide an adaptive microenvironment for skin regeneration at an early stage. This new bionic octopus sucker structure gel creates a good microenvironment for wound repair and shortens the wound healing time. Therefore, this hydrogel inspired by the octopus sucker structure may provide a good strategy and commercial value for promoting wound repair treatment in clinical practice.

Abstract Objective The aim of the study was to investigate the 3.0 Tesla magnetic resonance imaging (MRI) features of Madelung’s deformity. Materials and methods The wrist MRI scans of 19 patients clinically diagnosed with Madelung’s deformity and 20 patients without deformity were consecutively selected from Beijing Jishuitan Hospital between April 2019 and December 2022 for observation, in the case group and control group, respectively. Multiple linear regression was used to analyze the factors affecting tilting angle and width of central disc (CD, also termed as triangular fibrocartilage, the main component of triangular fibrocartilage complex), while the chi-square test was used to compare the occurrences of CD (radial) attachment displacement, VL, and RTL. p

Anticoagulant treatment is an important strategy for secondary stroke prevention in non⁃valvular atrial fibrillation and acute ischemic stroke patients. However, the optimal timing for anticoagulation initiation after acute ischemic stroke has remained uncertain. In recent years, new clinical evidence has identified the benefit of early anticoagulation initiation rather than delayed anticoagulation initiation after acute ischemic stroke. This article reviews the literature on the topic of anticoagulation initiation in non⁃valvular atrial fibrillation with acute ischemic stroke patients. It helps physicians making decision to initiate anticoagulation at a more reasonable time point after balancing the risk of stroke recurrence and hemorrhagic transformation.

Objectives The objective of this study was to quantify the morphology, composition, and asymmetry of the paravertebral extensor muscles (PSEMs) in patients with cervical ossification of the posterior longitudinal ligament (OPLL) who had different modified K‐line (mK‐line) and the minimum interval between the mK‐line and OPLL (INTmin) values and to investigate the relationship between PSEMs and symptoms and outcomes following laminoplasty. These original findings elucidated that the atrophy of PSEMs could predict decompression outcomes and provided a theoretical basis for paraspinal muscle rehabilitation. Methods A total of 94 consecutive patients who underwent laminoplasty for OPLL between January 2020 and January 2022 were enrolled in this retrospective study. The relative cross‐sectional areas (rCSA), functional cross‐sectional areas (rFCSA), and FCSA/CSA ratio of the multifidus (MF), semispinalis cervicalis (SSCe), semispinalis capitis (SSCa), and splenius capitis (SpCa) were measured at the C3–C7 segments on cervical magnetic resonance imaging (MRI). This study compared the differences between the mK‐line (+) group and the mK‐line (−) group, as well as between the INTmin

This study aims to explore the effects of the social-emotional classroom climate on academic achievement in mathematics and literature for elementary students in grades 3 through 6. The research specifically focuses on the indirect role of creative thinking (convergent and divergent thinking). Structural equation modeling techniques were used to examine data collected from 1365 Chinese elementary students. The results indicate that in mathematics and literature classrooms, (1) the social-emotional climate had a positive effect on school achievement, and (2) divergent and convergent thinking play indirect roles between social-emotional climate and academic achievement. The findings suggest that elementary students' positive perception of social-emotional classroom climate, including the perceptions of teacher support and student cohesiveness, can promote divergent and convergent thinking and ultimately contribute to the output of academic achievement in mathematics and literature.

Online education has made it possible to implement the "classes suspended but learning continues" policy during the COVID-19 outbreak. However, the intangible sense of the online educational setting requires self-directed learning (SDL) and may force students to know the goals of learning that may impact their engagement. To understand the effect, based on situated expectancy-value theory, this study considered SDL as attitude and approach and constructed a research model to explore the mediating power of perceived value of knowing learning goals (PVKLG) related to participants' online learning engagement during the COVID-19 lockdown. Data were collected from 497 higher education students in China. After the confirmatory factor analysis with structural equation modeling, the results reported that SDL attitude and approach positively predicted learning engagement mediated by PVKLG. The results suggest that only when students have a high level of PVKLG will they be able to regulate their learning process through the two types of SDL and enhance their engagement in online learning contexts during the COVID-19 lockdown.

Project-based learning (PBL) has been identified as an effective pedagogy for instructors to help students to learn interdisciplinary knowledge, problem-solving skills, modes of thinking, and collaborative practices through solving problems in a real-world context. However, previous studies reported that instructors from K-12 to tertiary learning environments found it challenging to implement such a pedagogy for various reasons. The emergence of PBL E-learning platforms in the recent decade has attracted increasing interest in adoption and seems to provide a solution to tackle the difficulties in PBL implementation. Yet little is known about designing these platforms and how they facilitate the PBL learning process and management. In the current study, we conducted a multiple case survey study on 16 PBL learning platforms in English and Chinese, collected data on their features and functions, categorized them according to their services provided, and analyzed how they tackle the implementation challenges. Additionally, we identified four trends in PBL development as pedagogy, the skills, and competence required for teachers and students to successfully carry out PBL via e-learning platforms and provide suggestions to improve and refine the platform design for educational technologists and related stakeholders. The limitations of this study and the future research direction are included.