社会主义核心价值体系融入大学生思想政治教育的调查与思考

对江苏、安徽两省大学生和高校思想政治理论课教师进行的调查显示,大学生对社会主义核心价值体系基内容能基本了解和认可,对社会主义核心价值体系建设的措施的也持积极的看法。同时,调查也表明当前大学生在马克思主义信仰、理想信念等方面的认识上存在着许多不足;高校思想政治课教师的理论素养、思想政治理论课教学也存在不少亟待解决的问题。应高度重视社会主义核心价值体系融入大学生思想政治教育的极端重要性,通过改进高校思想政治理论课教学、开展大学生个人品德建设、注重解决现实生活中使人困惑的问题以及整合利用多种课外教育资源、增加社会实践环节等措施来加强和改进大学生的社会主义核心价值体系教育。     

The Undecidability of Propositional Adaptive Logic

We investigate and classify the notion of final derivability of two basic inconsistency-adaptive logics. Specifically, the maximal complexity of the set of final consequences of decidable sets of premises formulated in the language of propositional logic is described. Our results show that taking the consequences of a decidable propositional theory is a complicated operation. The set of final consequences according to either the Reliability Calculus or the Minimal Abnormality Calculus of a decidable propositional premise set is in general undecidable, and can be -complete. These classifications are exact. For first order theories even finite sets of premises can generate such consequence sets in either calculus.     

My beliefs about your beliefs: a case study in theory of mind and epistemic logic

We model three examples of beliefs that agents may have about other agents’ beliefs, and provide motivation for this conceptualization from the theory of mind literature. We assume a modal logical framework for modelling degrees of belief by partially ordered preference relations. In this setting, we describe that agents believe that other agents do not distinguish among their beliefs (‘no preferences’), that agents believe that the beliefs of other agents are in part as their own (‘my preferences’), and the special case that agents believe that the beliefs of other agents are exactly as their own (‘preference refinement’). This multi-agent belief interaction is frame characterizable. We provide examples for introspective agents. We investigate which of these forms of belief interaction are preserved under three common forms of belief revision.     

论当代临床学科带头人的领导素质

人本思想的觉醒、医学模式的转型、现代医学理念的建立等要求医学实践回归其本质和价值,对医院学科的建设和发展,特别是对临床学科带头人的核心能力提出了更高的要求。本文从服务理念、质量意识、能力提升、管理思维等方面对提升学科带头人核心能力的对策进行了浅述,旨在为我国现阶段医学学科发展和人才队伍培养提供点滴借鉴。     

The influence of depression symptoms on exploratory decision-making

People with symptoms of depression show impairments in decision-making. One explanation is that they have difficulty maintaining rich representations of the task environment. We test this hypothesis in the context of exploratory choice. We analyze depressive and non-depressive participants’ exploration strategies by comparing their choices to two computational models: (1) an “Ideal Actor” model that reflectively updates beliefs and plans ahead, employing a rich representation of the environment and (2) a “Naïve Reinforcement Learning” (RL) model that updates beliefs reflexively utilizing a minimal task representation. Relative to non-depressive participants, we find that depressive participants’ choices are better described by the simple RL model. Further, depressive participants were more exploratory than non-depressives in their decision-making. Depressive symptoms appear to influence basic mechanisms supporting choice behavior by reducing use of rich task representations and hindering performance during exploratory decision-making.     

Gamma- and theta-band synchronization during semantic priming reflect local and long-range lexical–semantic networks

Anterior and posterior brain areas are involved in the storage and retrieval of semantic representations, but it is not known how these areas dynamically interact during semantic processing. We hypothesized that long-range theta-band coherence would reflect coupling of these areas and examined the oscillatory dynamics of lexical–semantic processing using a semantic priming paradigm with a delayed letter-search task while recording subjects’ EEG. Time–frequency analysis revealed facilitation of semantic processing for Related compared to Unrelated conditions, which resulted in a reduced N400 and reduced gamma power from 150 to 450 ms. Moreover, we observed greater anterior–posterior theta coherence for Unrelated compared to Related conditions over the time windows 150–425 ms and 600–900 ms. We suggest that while gamma power reflects activation of local functional networks supporting semantic representations, theta coherence indicates dynamic coupling of anterior and posterior areas for retrieval and post-retrieval processing and possibly an interaction between semantic relatedness and working memory.     

Using Dynamic Field Theory to extend the embodiment stance toward higher cognition

The embodiment stance emphasizes that cognitive processes unfold continuously in time, are constantly linked to the sensory and motor surfaces, and adapt through learning and development. Dynamic Field Theory (DFT) is a neurally based set of concepts that has turned out to be useful for understanding how cognition emerges in an embodied and situated system. We explore how the embodiment stance may be extended beyond those forms of cognition that are closest to sensorimotor processes. The core elements of DFT are dynamic neural fields (DNFs), patterns of activation defined over different kinds of spaces. These may include retinal space and visual feature spaces, spaces spanned by movement parameters such as movement direction and amplitude, or abstract spaces like the ordinal axis along which sequences unfold. Instances of representation that stand for perceptual objects, motor plans, or action intentions are peaks of activation in the DNFs. We show how such peaks may arise from input and are stabilized by intra-field interaction. Given a neural mechanism for instantiation, the neuronal couplings between DNFs implement cognitive operations. We illustrate how these mechanisms can be used to enable architectures of dynamic neural fields to perform cognitive functions such as acquiring and updating scene representations, using grounded spatial language, and generating sequences of actions. Implementing these DFT models in autonomous robots demonstrates how these cognitive functions can be enacted in embodied, situated systems.     

歧视知觉与农村贫困大学生孤独感:核心自我评价、朋友支持的中介作用

采用问卷测量769名贫困大学生和1014名非贫困大学生的歧视知觉、核心自我评价、朋友支持和孤独感,探讨歧视知觉对贫困/非贫困大学生的影响以及核心自我评价和朋友支持的中介作用。结果表明：（1）贫困大学生歧视知觉和孤独感显著高于非贫困大学生、核心自我评价和朋友支持显著低于非贫困大学生。（2）歧视知觉与贫困/非贫困大学生核心自我评价、朋友支持和孤独感相关显著,歧视知觉显著预测贫困/非贫困大学生孤独感。（3）贫困/非贫困大学生结构模型没有显著差异,核心自我评价和朋友支持部分中介歧视知觉对贫困/非贫困大学生孤独感的影响。     

员工的核心自我评价与多维生活满意度的关系：感知社会支持的中介作用

本研究以245名企业员工为被试,从感知到的不同来源社会支持的角度探索了核心自我评价对员工生活满意度不同领域的作用机制。结果表明：（1）核心自我评价对家庭、朋友、工作和自我满意度均有显著的正向预测作用。（2）家庭支持在核心自我评价与家庭满意度之间起完全中介作用,在核心自我评价与自我满意度之间起部分中介作用;朋友支持在核心自我评价与朋友满意度之间起完全中介作用。研究表明,核心自我评价能直接预测生活满意度中的非关系型领域,能通过各类社会支持分别间接预测生活满意度中的各类关系型满意度。     

工读学校学生的物质滥用行为及其关键影响因素分析

选取西南某省工读学校的193名工读学生参加问卷调查,拟考察工读生的物质滥用行为特点,并初步探索影响工读生物质滥用行为的关键因素以及各关键因素的相对影响力。结果发现:(1)工读生中存在较严重的每日吸烟(49%)、大量饮酒(41%)和毒品使用行为(41%),女生的毒品使用行为约是男生的两倍(74%vs.35%);(2)父母物质滥用行为与态度、同伴物质滥用行为与态度、同伴压力、抵制效能感是影响工读生出现物质滥用行为的关键影响因素;(3)在工读生物质滥用行为影响因素的关系模型中,父母诸因素可以显著地预测同伴诸因素,同时,父母和同伴特点又通过影响工读生的抵制效能感,间接地预测工读生的三种物质滥用行为。其中,父母诸因素对工读生的物质滥用行为和抵制效能感的预测力大于同伴的作用。