Analyzing the drivers of tree planting in Yunnan,China, with Bayesian networks

Strict enforcement of forest protection and massive afforestation campaigns have contributed to a significant increase in China's forest cover during the last 20 years. At the same time, demographic changes in rural areas due to changes in reproduction patterns and the emigration of younger population segments have affected land-use strategies. We identified proximate causes and underlying drivers that influence the decisions of farm households to plant trees on former cropland with Bayesian networks (BNs). BNs allow the incorporation of causal relationships in data analysis and can combine qualitative stakeholder knowledge with quantitative data. We defined the structure of the network with expert knowledge and in-depth discussions with land users. The network was calibrated and validated with data from a survey of 509 rural households in two upland areas of Yunnan Province in Southwest China. The results substantiate the influence of land endowments, labor availability and forest policies for switching from cropland to tree planting. State forest policies have constituted the main underlying driver to the forest transition in the past, but private afforestation activities increasingly dominate the expansion of tree cover. Farmers plant trees on private incentives mainly to cash in on the improved economic opportunities provided by tree crops, but tree planting also constitutes an important strategy to adjust to growing labor scarcities.     

高职青年数学教师专业发展的“三重门”

为适应高素质应用型人才的培养,高职数学教学改革势在必行,青年教师在高职数学教学中占据了较大的比例,是其中坚力量,故促进青年教师的专业发展,是推进高职数学教学改革的重要保障.本文主要分析了影响高职青年数学教师专业发展的“三重门”：一是数学信念和教学信念;二是专业理论知识和学科教育教学知识;三是自我专业发展意识.     

一种低迭代次数的极化码置信传播译码算法

针对置信传播（Belief Propagation,BP）译码算法在迭代次数较多时吞吐量和译码时延性能提升受限的问题,提出了一种低迭代次数的极化码BP译码算法,通过采用比特翻转和子信道冻结的方式,降低译码过程中的迭代次数。仿真结果表明,相对于传统极化码BP译码算法（设置最大迭代次数为40次）,所提算法在信噪比为3 dB时可将平均迭代次数减少约53%,处理单元平均计算次数减少约68%。该算法所带来的低时延和低功耗效益可运用在对功耗要求较高的大规模机器类型通信,以及对时延要求较高的超可靠低延迟通信等5G场景下的极化码译码中。     

国有商业银行员工的普适价值信仰建构研究——基于经济学普适原理的文化管理实践运用视角

文章针对国有商业银行企业文化建设中对外经营文化与对内员工管理文化不分、企业核心价值体系对员工个体的吸引力不足等问题,从经济学与哲学理念相互结合的视角,重点研究以"求员工自利之道,循人生成功之路"为基础的企业文化管理理念。提出了企业员工价值信仰的内容应该以符合人类根本利益的普遍价值为基础,通过经济学的渗透性来系统认知员工的利益性行为导向文化理念、规则性行为导向文化理念和利他性行为导向文化理念,根据员工在认识、接受和权衡实现自身利益最大化的约束条件基础上,采用经济学普适原理,构建"员工价值信仰"的基本内容,从而指出了深化国有商业银行企业文化的落地路径。     

瑶族黄泥鼓乐舞的信仰禁忌与双重变迁

黄泥鼓乐舞是瑶族传统祭祀仪式“跳盘皇”的主要乐舞。通过实地调查,不仅揭示该乐舞在当代“信仰”与“消费”的互动和妥协中分化成“仪式”与“展演”两种性质的音乐事项,亦阐释经过“再生产”成为舞台艺术时,瑶族如何处理仪式乐舞的信仰禁忌。     

豫东地区的村庙文化——从民间信仰角度的考察

随着社会的变迁和全球化的影响,民间信仰也经受着不同程度地冲击,它的形态、功能以及仪式的内涵和功能也在发生着改变。随着农村的市场化和现代化过程,中国农村的经济社会、思想意识也都发生了深刻的变化。     

大学生道德信仰危机产生的原因及化解策略

当前我国正处于改革开放深入发展的社会转型时期,各种矛盾和问题冲击着大学生的信仰。大学生出现了信仰危机,特别是道德信仰的危机。社会转型时期的环境、教育的薄弱以及大学生自身的缺陷共同导致了大学生道德信仰危机。文章认为应当从实践和教育两方面共同努力,去化解大学生道德信仰危机。     

商业银行挤兑机理及信息层叠概率计算

从存款者类型、群体信念、私有信息、存款者决策行为四个方面构建信息结构来研究商业银行挤兑机理,探讨了存款者从商业银行投资信息市场接收到好信号或者坏信号情况下,商业银行投资收益仍属于高收益或低收益的群体信念后验概率;计算了耐心存款者无信息层叠概率、无挤兑信息层叠概率和挤兑信息层叠概率。得出提高存款者信息精确度既可以消除银行挤兑的重要根源——信息不对称问题,又有利于经营状况良好的银行稳步发展,防止经营状态差的银行掩盖风险,督促银行经营者加强风险控制。     

Asymmetric Volume‐Return Relation and Concentrated Trading in LIFFE Futures

This study demonstrates that intraday volume and return on LIFFE interest rate and currency futures exhibit an asymmetric volume‐return relationship characterised by significantly larger volume associated with negative returns than with non‐negative returns. This finding is unlike the stylised asymmetric relation often observed in equity markets, where the volume on price rise is larger than the volume on price decline. The asymmetric relationship in LIFFE futures is also found to be dynamic as the direction of asymmetry can reverse during the day. It has been argued in the past that a costly short sale restriction that requires a higher transaction cost on a short position than on a long position is responsible for the asymmetric effect in equity markets. Since such a restriction is absent in futures markets, they should not exhibit any asymmetric volume behaviour. Based on the results of this research, the costly short sale hypothesis is rejected. An alternative explanation of the asymmetric relation observed in futures is presented based on recent information models that take into consideration asymmetrically‐informed traders, their dispersion of beliefs, quality and quantity of the information signal, and how the traders process it. The paper also confirms a strong U‐shape trading pattern in 15‐minute volume, but no such pattern is identified in intraday returns.     

社会学视野下福建宗教冲突、融合及其对策

从社会学广泛的学术视野出发,以田野调查的严谨方法为手段,探讨福建宗教的整体态势,及其在区域文化中所扮演的重要角色,分析宗教的"冲突与融合",直面社会真实,科学理性地分析福建宗教现象,分析其背后所隐藏的本质规律,探讨福建宗教管理的可行性对策,为福建宗教管理的科学决策提供学术依据。