自然保护区周边社区薪柴消费影响因素分析

薪柴作为一种传统能源,依然是自然保护区周边社区的主要生活能源。落后的薪柴采集和消费不仅造成能源浪费,还严重影响着自然保护区的资源生态环境,因此促进自然保护区周边社区的薪柴消费向高效清洁的商品能源消费转变具有重要意义。本研究基于陕西省洋县和宁陕县朱鹮自然保护区周边社区农户薪柴消费微观调查数据,采用多元线性回归模型,对自然保护区周边家庭薪柴消费的影响因素进行了计量分析。结果表明,0.01的显著水平上,家庭人口数、家庭年龄、养殖业收入对农户薪柴消费具有显著正向影响,外出务工收入对农户薪柴消费具有显著反向影响;在0.05的显著水平上,个体经营收入对农户薪柴消费具有显著反向影响。因此,通过提高农民的教育水平,引导农村剩余劳动力进城务工,加强自然保护区转移支付等方式,促进自然保护区周边能源消费从薪柴消费向商品能源消费转变,是解决自然保护区周边社区森林资源破坏的有效途径。     

高职护理专业中“问题本位”教学的多元构建

问题本位教学是建构主义理论指导下以学生为中心的一种教学模式。文章分析了目前高职护理教育的现状,介绍了问题本位教学的构建原则,指出高职护理教育问题本位教学的构建可以从创设问题情境和框架问题、提供情境案例、开展生成性课题研学等方面进行,以培养学生的自主学习和知识的综合运用能力。     

Developing a Mentoring Scheme in Primary Initial Teacher Education

Researchers have shown the benefits of mentoring in both personal and professional growth. It would seem that group mentoring would only enhance those benefits. This work represents a literature review of peer-reviewed articles and dissertations that contribute to the theory and research of group mentoring. This work reviews the articles that contributed to the development of group mentoring theory as well as relevant research. Four primary types of group mentoring emerge—peer group, one-to-many, many-to-one, and many-to-many. Despite over 20 years of research, significant gaps remain in the research methods, demographic focus, and fields of study. The review concludes with recommendations for future research.     

松嫩平原土壤有机质含量高光谱反演研究

采集松嫩平原典型类型土壤样本252个.室内条件下测定了风干后土样的光谱.对原始光谱数据作预处理后,分别运用多元线性逐步回归法和偏最小二乘法建立土壤有机质含量高光谱预测模型.结果表明,采用2种方法建立的模型均可满足有机质含量速测要求,但偏最小二乘法得到的模型更具稳健性.     

多元智力理论与研究型课程的开发与设计

研究型课程着眼于提高学生的创造性学力,注重提高学科研究能力.研究型课程具有探究性、创新性、自主性和综合性等特征,其基本目标包括能力、情意和知识等七个维度.多元智力理论倡导的学生主动参与、探究发现、交流合作学习等内容引起教师角色、教与学方式的变革,赋予学校教育教学新的功能和价值取向.这些皆为研究型课程的设计与开发提供了许多有益的启示.汲取多元智力理论合理的内核,为研究型课程的设计和实施,特别是课程内容的选择与组织、课程教学的形式和方法等具有积极的意义.     

一种改进的无线传感器网络DV-HOP定位算法

为了解决DV-HOP算法在节点随机部署环境下定位误差较大的缺点,提出一种基于DV-HOP多通信半径的加权双曲线定位算法RWHDV-HOP。该算法通过理想跳数与实际跳数的差值修正平均跳距,结合多通信半径使跳数小数化,利用基于跳数加权的双曲线算法估算未知节点坐标。仿真结果表明,在相同条件设置下,RWHDV-HOP算法定位精度比传统DV-HOP算法提高了25%,比RWDV-HOP算法提高了10%。因此,基于DV-HOP多通信半径的加权双曲线定位算法RWHDV-HOP在节点随机部署环境下能够较大程度上提高节点定位精度。     

Who is not multilingual now?

What is the relationship between research into multilingualism and research concerned more generally with language and communication in mathematics education? Diversity in linguistic practices is universal in modern society and poses problems for teaching and learning even in apparently monolingual contexts. Research in multilingualism and mathematics education offers constructs and insights that can inform research and pedagogy more widely.     

论李金发诗歌的纯美艺术

李金发的诗以风格怪异见称,这是因为,他接受法国象征诗派的影响,把西方诗歌的“纯美”理念纳入新诗的创作中,从而使他的诗悖离了中国传统诗学的目的,真正接近了西方诗歌的艺术自我化和生命化的本质。本文试图从纯粹艺术的角度重新解读李金发的诗歌在审美境界中对生命意义的探求与关怀。     

Improving the Root Mean Square Error of Approximation for Nonnormal Conditions in Structural Equation Modeling

In this study, the authors investigated incorporating adjusted model fit information into the root mean square error of approximation (RMSEA) fit index. Through Monte Carlo simulation, the usefulness of this adjusted index was evaluated for assessing model adequacy in structural equation modeling when the multivariate normality assumption underlying maximum likelihood estimation is violated. Adjustment to the RMSEA was considered in 2 forms: a rescaling adjustment via the Satorra-Bentler rescaled goodness-of-fit statistic and a bootstrap adjustment via the Bollen and Stine adjusted model p value. Both properly specified and misspecifed models were examined. The adjusted RMSEA was evaluated in terms of the average index value across study conditions and with respect to model rejection rates under tests of exact fit, close fit, and not-close fit.     

主题的"异延"--重读《道连·格雷的画像》

《道连·格雷的画像》是奥斯卡·王尔德创作的唯一一部小说。它问世以后,许多当代评论家对它进行了严厉的批评,人们普遍认为它是一部不道德的作品,甚至有人斥之为有毒之作,但是也有许多评论家认为它有着道德的内涵。近年以来,随着对王尔德研究的深入,随着作者的影子在小说中的淡化,对它进行重读已势在必行。本文应用后结构主义的修辞和互文性阅读策略,从小说的象征、王尔德的真实观、自我观和面具观等方面重读《道连格雷的画像》,揭示小说意义的复杂性。