279 research outputs found

    Logical gaps in the approximate solutions of the social learning game and an exact solution

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    After the social learning models were proposed, finding the solutions of the games becomes a well-defined mathematical question. However, almost all papers on the games and their applications are based on solutions built upon either an add-hoc argument or a twisted Bayesian analysis of the games. Here, we present logical gaps in those solutions and an exact solution of our own. We also introduced a minor extension to the original game such that not only logical difference but also difference in action outcomes among those solutions become visible.Comment: A major revisio

    The influence of contact area between implant and its adjacent teeth on finite element analysis

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    The aim of this work is to investigate the influence of contact area between the first molar implant and its adjacent teeth on finite element analysis. Five types of finite element contact models containing implant and its adjacent teeth were established: non-contact model (C0), contact models with different contact area (C1, C2, C3, C4). An occlusal force was applied to finite element models to calculate the stress of implant and bone interface on mandible. Compared with the group C0, the stress of alveolar bone surrounding the implant in other groups decreased 88.08Ā % at most, but the stress of cancellous bone surrounding the natural teeth increased 59.42Ā %. In summary, a proper small contact area can not only reduce the stress concentration on the implant region, but also can avoid an excessive stress in the periodontal ligament and alveolar bone around the natural teeth. The finite element results revealed that it is effectively to distribute the load implant suffered, especially to reduce the stress generated by the lateral load when the first molar implant has a small contact with its adjacent teeth

    COVIDā€19 in Tuberculosis patients: a report of three cases

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    The clinical features and treatment of pulmonary tuberculosis patients with COVIDā€19 is unclear and understudied. Here, three pulmonary tuberculosis patients with COVIDā€19 infection were prospectively followed from hospital admission to discharge. We provide information and experience with treatment of pulmonary tuberculosis cases with confirmed COVIDā€19 infection

    Improvement of Sciatic Nerve Regeneration Using Laminin-Binding Human NGF-Ī²

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    Sciatic nerve injuries often cause partial or total loss of motor, sensory and autonomic functions due to the axon discontinuity, degeneration, and eventual death which finally result in substantial functional loss and decreased quality of life. Nerve growth factor (NGF) plays a critical role in peripheral nerve regeneration. However, the lack of efficient NGF delivery approach limits its clinical applications. We reported here by fusing with the N-terminal domain of agrin (NtA), NGF-Ī² could target to nerve cells and improve nerve regeneration. was also measured. Using the rat sciatic nerve crush injury model, the nerve repair and functional restoration by utilizing LBD-NGF were tested.. In the rat sciatic nerve crush injury model, we found that LBD-NGF could be retained and concentrated at the nerve injury sites to promote nerve repair and enhance functional restoration following nerve damages.Fused with NtA, NGF-Ī² could bind to laminin specifically. Since laminin is the major component of nerve extracellular matrix, laminin binding NGF could target to nerve cells and improve the repair of peripheral nerve injuries

    The Impact of Self-Relevance on Preschool Childrenā€™s Sharing

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    This study was designed to investigate the impact of self-relevance between preschool children and recipients on childrenā€™s sharing behavior in dictator games using a forced-choice resource distribution paradigm. Experiment 1: A total of 75 children aged 3ā€“6 years were evaluated in a first-party situation in which they were distributed as recipients and dictators and shared resources with distracting recipients with different extents of self-relevance under three different payoff structures, including non-costly, costly, and envy structures. Children could choose between a sharing option and a non-sharing option. The results showed that, in a first-party situation, children aged 3ā€“6 years old typically share more resources with highly self-relevant recipients (friends) than with moderately self-relevant recipients (acquaintances) and lowly self-relevant recipients (strangers) and that they share more resources with moderately self-relevant recipients (acquaintances) than lowly self-relevant recipients (strangers). Experiment 2: A total of 62 children aged 3ā€“6 years old were evaluated in a third-party situation in which they were distributed not as recipients but only dictators, making decisions between the options of sharing more or sharing less with distracting recipients who had different extents of self-relevance under three different payoff structures, such as non-bias, high self-bias, and low self-bias. The results showed that, in a third-party situation, children typically share in a similar manner to that of Experiment 1, meaning that children display selective generosity and that the self-relevance between the children and recipients played a key role. Across age groups, this study of preschool children (total N = 137) demonstrates a degree of effect of self-relevance on preschool childrenā€™s sharing in first-party and third-party situations, with highly self-relevant recipients receiving a more preferential share in the dictator game than those with low self-relevance, although this effect was stronger in the older preschool children

    Temperatureā€dependent mechanical and oxidation behavior of in situ formed ZrN/ZrOā‚‚ā€containing Siā‚ƒNā‚„ā€based composite

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    In this work, Siā‚ƒNā‚„ and Zr(NOā‚ƒ)ā‚„ were used as raw materials to prepare ZrN/ZrOā‚‚ā€containing Siā‚ƒNā‚„ā€based ceramic composite. The processing, phase composition, and microstructure of the composite were investigated. Hardness and fracture toughness of the ceramics were evaluated via Vickers indentation in Ar at 25Ā°C, 300Ā°C, 600Ā°C, and 900Ā°C. During spark plasma sintering, Zr(NOā‚ƒ)ā‚„ was transformed into tetragonal ZrOā‚‚, which further reacted with Siā‚ƒNā‚„, resulting in the formation of ZrN. The introduction of ZrN enhanced the highā€temperature mechanical properties of the composite, and its hardness and fracture toughness reached 13.4 GPa and 6.1 MPaĀ·mĀ¹/Ā² at 900Ā°C, respectively. The oxidation experiment was carried out in air at 1000Ā°C, 1300Ā°C, and 1500Ā°C for 5 h. It was shown that highā€temperature oxidation promoted the formation and growth of porous oxide layers. The microstructure and phase composition of the formed oxide layers were investigated in detail. Finally, it was identified that the obtained composite exhibited a higher thermal diffusivity than that of monolithic Siā‚ƒNā‚„ in the temperature range of 100Ā°Cā€“1000Ā°C

    The Influence of Self-Control and Social Status on Self-Deception

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    The purpose of this study was to explore the effects of self-control and social status on self-deception. The present study adopted a forward-looking paradigm to investigate how self-control and social status influence self-deception. In Experiment 1, participants were asked to complete 10 questions, after they predicted and completed 40 questions (commonsense judgment materials) either with or without answer hints. The results indicated that the participants had higher predicted scores under conditions with answer hints compared with conditions without answer hints and that the predicted scores were much higher than the actual scores under conditions with answer hints. In Experiment 2, individuals with different self-control traits were chosen to perform the operation and induction of the perception of social status and then complete tests such as Experiment 1. The results showed that differences in the predicted scores between conditions with answer hints and those without answer hints were observed to be greater in individuals with low self-control traits than in individuals with higher self-control traits, however, such differences between individuals with higher and low self-control traits were only observed in conditions with low social status perception, not in the conditions with high social status perception. The findings indicated that compared with individuals with high self-control, low self-control individuals tended to produce more self-deception. In addition, high social status in the individualsā€™ perception could restrain the influence of low self-control on self-deception, while low social status in the individualsā€™ perception could increase the self-controlā€™s influence on self-deception
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