Publications by authors named "Wenwu Dai"

Background: The judgment of confidence (JOC) refers to the confidence in the accuracy of the target item individuals have just retrieved and is a typical retrospective metacognitive monitoring process. In the classical paradigm of JOC, JOC occurs after the recognition or recall task. While initially viewed as a single-stage monitoring process, recent research on JOC suggests its internal mechanisms may be more complex, potentially encompassing both retrieval and monitoring processes.

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Background: As emerging adults are increasingly reliant on instant messaging applications for communication with romantic partners, cyber dating abuse perpetration (CDAP) and victimization (CDAV) have proliferated. This has aroused the high attention of researchers. This study aimed to explore the mechanism of the influence of peer phubbing on CDAP and CDAV in Chinese context.

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Social mentalizing plays a crucial role in two-person interactions. Depending on the target of inference and the content being inferred, social mentalizing primarily exists in two forms: first-order mentalizing and second-order mentalizing. Our research aims to investigate the cue sources and cue utilization patterns of social mentalizing during two-person interactions.

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Objectives: Under the COVID-19 prevention and control policy, online learning has been widely used. The current study aimed to identify latent profiles of self-regulated learning in the context of online mathematics learning during the recurrent outbreak of COVID-19, and examine the mechanisms underlying the relationship between self-regulated learning and online mathematics learning engagement among Chinese junior high school students using variable-and person-centered approaches.

Methods: A sample of 428 Chinese junior high school students (47.

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The relationship between metacognition and mindreading was investigated by examining how well one can monitor their own learning (Self) compared to another person's learning (Other). Here, we used functional near-infrared spectroscopy (fNIRS) to systematically investigate the brain area activation during metacognition and mindreading. The evidence indicated that metacognition and mindreading are underpinned by distinct neural systems.

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Composite photocatalysts with hetero-structures usually favor the effective separation of photo-generated carriers. In this study, BiOIO was chosen to form a hetero-structure with BiOI, due to its internal polar field and good lattice matching with BiOI. The interfacial properties and band offsets were focused on and analyzed in detail by DFT calculations.

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Six BiOX1-xYx (X, Y = F, Cl, Br, and I) solid solutions have been systematically investigated by density functional theory calculations. BiOCl1-xBrx, BiOBr1-xIx, and BiOCl1-xIx solid solutions have very small bowing parameters; as such, some of their properties increase almost linearly with increasing x. For BiOF1-xYx solid solutions, the bowing parameters are very large and it is extremely difficult to fit the related calculated data by a single equation.

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As a promising photocatalyst driven by visible light, BiOI suffers from its lower conduction band edge position, which leads to its inability to produce hydrogen from photocatalytic water splitting. However, BiOI has an open layered intergrowth structure, which makes it easily cleavable along (001) plane. Thus, inspired by the progress of graphene-like two-dimensional nanomaterials, researchers believe that single-layer BiOI presents excellent photocatalytic activity for water splitting.

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In order to understand the photophysical properties and explain the experimental observations of Eu-doped BiOX (X = F, Cl, Br, I), the crystal structure, electronic structure, and optical properties of pure BiOX and Eu-doped BiOX have been calculated using the DFT+U method. By Eu doping, the band gap of BiOI is slightly narrowed, while the band gaps of others (BiOF, BiOCl, and BiOBr) are slightly broadened. Importantly, there is an isolated impurity energy band in the middle of the band gap, which is formed by seven spin-up energy levels of Eu-4f states.

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