A recessive gene controlling male sterility sensitive to short daylength/low temperature in wheat (Triticum aestivum L.)

Utilization of a two-line breeding system via photoperiod-thermo sensitive male sterility has a great potential for hybrid production in wheat (Triticum aestivum L.). 337S is a novel wheat male sterile line sensitive to both short daylength/low temperature and long daylength/high temperature. Five F₂ populations derived from the crosses between 337S and five common wheat varieties were developed for genetic analysis. All F₁’s were highly fertile while segregation occurred in the F₂ populations with a ratio of 3 fertile:1 sterile under short daylength/low temperature. It is shown that male sterility in 337S was controlled by a single recessive gene, temporarily designated as wptms3. Bulked segregant analysis (BSA) coupled with simple sequence repeat (SSR) markers was applied to map the sterile gene using one mapping population. The wptms3 gene was mapped to chromosome arm 1BS and flanked by Xgwm413 and Xgwm182 at a genetic distance of 3.2 and 23.5 cM, respectively. The accuracy and efficiency of marker-assisted selection were evaluated and proved essential for identifying homozygous recessive male sterile genotypes of the wptms3 gene in F₂ generation.     

旅游风景中的身体认知隐喻

人是万物的尺度,人体是人类认知外部世界的重要工具。在旅游风景的欣赏过程,当旅游者作为欣赏主体去体验和感悟风景客体时,旅游者会借助对自己身体的了解来欣赏和领悟风景的美。以始源域和目的域之间的相似性为理据,始源域身体场的特征映射到目的域山水风景中,形成山水风景是身体这一隐喻。通过身体隐喻来欣赏和感悟山水风景,使人更能体验到悦耳悦目、悦心悦意和悦志悦神的感觉。     

公益广告多模态隐喻表征方式研究

以认知语言学隐喻理论为基础,以具有代表性的中外公益广告为研究对象,探讨公益广告多模态隐喻表征方式和语类特点。研究表明,公益广告隐喻表征方式主要可分为六类,图像和文字互动构建的多模态隐喻能在视觉和心灵上给广告受众带来强烈震撼,进而达到劝谏效果。     

《红楼梦》中的概念隐喻研究

概念隐喻是以一个认知域的经验来说明或理解另一个认知域的经验,用源域的某些特点来映射目标域,从而使目标域的理解变得简单。《红楼梦》语言描写中的一大特色就是使用隐喻。文章从概念隐喻的三个维度：结构隐喻、方位隐喻和本体隐喻来分析和阐释《红楼梦》中的概念隐喻,以期发现这些概念隐喻的具体类型,解释它们发生的内在过程。     

基于思维导图的“医学影像物理学”教学实践研究

“医学影像物理学”是医药院校医学影像学专业的一门专业基础课,学生普遍反映课程内容繁多且难以融会贯通。为提高“医学影像物理学”课程的教学质量,通过分析“医学影像物理学”的课程特点及学生特点,在中医药院校“医学影像物理学”的授课中应用思维导图法,融合引导式教学方法,分别从课前导学、章末总结、对比归纳学习易混淆概念等维度进行课程教学设计。结果表明,思维导图引导式教学模式,可以帮助学生提高自主学习积极性,锻炼知识整合和逻辑思维能力,学生对课程设计整体评价较高,对其他影像学专业课程教学具有一定的参考意义。     

将思维导图引入“中医学基础”教学的必要性

思维导图作为一种思维工具,模拟大脑功能,有利于促进学习,因此被引入教育教学领域,成为众多国家教育改革的策略之一。目前,思维导图已被引入中医学课程教育教学改革之中。“中医学基础”是中医学必修课程,在实际教学活动中应用思维导图建构“中医学基础”知识体系,符合该课程特色及人才培养目标,也有利于提高教学质量,激发学生的学习热情,有助于学生理解中医理论,也能为其以后学习其他医学知识奠定基础。     

The development of students critical thinking abilities and dispositions through the concept mapping learning method – A meta-analysis

Our meta-analysis investigates the effectiveness of the concept mapping method compared with the traditional teaching method, for the improvement of critical thinking ability and disposition outcomes. We included studies measuring students' critical thinking through standardised tests, comparing an experimental (concept mapping) group with a control (traditional teaching) one. Effect sizes for critical thinking ability and disposition outcomes were pooled with a random-effects model. We included in our meta-analysis 21 studies (108 comparisons) involving 1695 students. The concept mapping method was more effective than the traditional teaching method at posttest for the improvement of critical thinking ability (g = 0.531, 95% CI 0.279 to 0.783) and disposition (g = 0.648, 95% CI 0.266 to 1.031). Heterogeneity was moderate to high, Egger's test did not indicate any evidence of publication bias; however, both visual inspection of the Funnel plot and Duval and Tweedie's trim and fill method indicated potentially three missing studies for critical thinking ability and two for critical thinking disposition. Additionally, we analysed the potential moderating effect of students' demographic characteristics, educational conditions, concept mapping elaboration methods and allocation type. Allocation type was a significant moderator, having a strong effect on concept mapping for critical thinking abilities in randomised studies (g = 0.739, 95% CI 0.356 to 1.122), but its effect is low in non-randomised studies (g = 0.265, 95% CI 0.014 to 0.517).     

基于知识图谱的国际搜索引擎研究历程与热点演进

对国际上搜索引擎领域的研究文献进行比较细致、深入的考察,采用可视化方法进行定量分析并制作有关知识图谱,明晰国际搜索引擎研究的总体趋势和发展脉络。通过对高被引文献的深入解读和定性分析,以及近几年相关文献的共词分析,揭示国际上搜索引擎研究的起源和发展,以及从进入快速发展期至今四个阶段的研究热点演进历程。最后,总结和展望国际搜索引擎研究的热点方向。     

博物馆研究文献计量与知识图谱分析

对中文社科引文索引（CSSCI）收录的1998—2012年有关博物馆研究论文进行统计,从年代分布、期刊分布、主题分布、核心著者分布等方面进行文献计量分析,确定我国博物馆研究领域的核心作者、核心期刊以及研究规律,揭示博物馆研究概况及研究主题。运用文献共被引分析方法与动态网络分析的信息可视化技术,绘制我国博物馆研究领域的科学知识图谱。展示博物馆研究的关键节点以及节点所代表的专家及其著作对该领域发展所起的作用,展现我国博物馆研究的知识基础与研究前沿。进而为今后我国博物馆研究提供思路与借鉴,推动该领域的理论与经验研究。