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Organ-specific functions of tissue-resident macrophages in the steady-state heart are unknown. Here, we show that cardiac macrophages facilitate electrical conduction through the distal atrioventricular node, where conducting cells densely intersperse with elongated macrophages expressing connexin 43. When coupled to spontaneously beating cardiomyocytes via connexin-43-containing gap junctions, cardiac...
Aiming at the need for autonomous learning in reinforcement learning (RL), a quantitative emotion-based motivation model is proposed by introducing psychological emotional factors as the intrinsic motivation. The curiosity is used to promote or hold back agents' exploration of unknown states, the happiness index is used to determine the current state-action's happiness level, the control power is...
Text similarity computing plays an important role in natural language processing. In this paper, we build a word vector model based on neural network, and train Chinese corpus from Sohu News, World News, and so on. Meanwhile, a method of calculating the text semantic similarity using word vector is proposed. Finally, through comparing with the traditional calculation method TF-IDF, the experimental...
This study explores students' continuance intention in e-learning education system by synthesizing Bhattacherjee's IS continuance theory as basis with the unified theory of acceptance and use of technology (UTAUT), and innovation diffusion theory. The integrated model was empirically tested with 180 bachelor students who had the experience of using the e-learning education system. The results indicate...
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