提高籼型两系杂交稻产量的主攻方向研究

12个税型两系杂交稻组合在5个播期条件下的播始天数、株高、单株草重、谷草比、单株有效稳、每穗着粒数、实粒数、结实率、千粒重及单株粒重等10个性状进行相关及通径分析，结果表明，不仅结实率及谷草比与单株粒重的相关系数（正相关）较大，而且这2个险状对单株粒重的直接通径系数（为正值）也较大，说明现阶段提高结实率及谷草比是选育强优势税型两系杂交稻的主攻方向。对提高结实率的途径也进行了讨论。     

教育的生命基础

生命的特征具有有限性、未特定性、创造性、文化性及超越性。教育应根据生命的特征,遵循生命发展的规律,引导人的生命走向更加完整、和谐与完善的境界。     

实践·审美·人——从《谈美书简》看后期朱光潜的美学观

在《谈美书简》里,朱光潜以马克思主义的实践观点(生产劳动)为基础,协调、统一主体与客体,人与自 然、心与物之间的矛盾对立;把文艺看作一种独特的精神生产,并以之为出发点,解决一系列重大的美学和艺术理 论问题;最后将人作为其美学体系的归宿。     

EVERGO PC—88微机的硬件分析和维护

本文分析了香港产的EVERGO PC—88型微机的电路结构和特点,并比较了与IBM—PC微机的不同之处,列举了维修该机的例子。     

塑料阳角基准条在抹灰工程中的应用

介绍塑料阳角基准条在抹灰工程施工中的应用技术,解决了传统阳角抹灰操作难度大的问题,展示了阳角抹灰工艺改革势在必行的趋势.     

科学发展观与当代中国的可持续发展

本文深入分析了“科学发展观”产生的时代背景 ,阐述了“科学发展观”的科学内涵及其与中国的可持续发展战略之间的关系     

Modeling heteroscedastic age-period-cohort cancer data

The extent to which cancer will be a burden on the Canadian health-care system will be determined by future cancer rates and future population levels in the high-risk age groups. Parametric models of incidence and mortality rates for various cancers may be used to obtain medium-term forecasts of rates, which then can be used in conjunction with population projections to obtain forecasts of total incidence and mortality. Age-period-cohort cancer data often exhibit marked heteroscedasticity, which complicates the modeling of the data. Methods to allow for the effects of this heteroscedasticity on residual processes are developed and discussed in the context of modeling Canadian female breast-cancer incidence data.     

由国外经验看我国非正规就业的社会保障建设

近年来,随着我国经济体制转轨、产业结构调整升级以及农村剩余劳动力大量涌向城市,非正规就业得到迅速发展,几乎涵盖了国民经济和社会生活的各个领域,对于促进我国的经济发展和社会稳定,尤其是解决我国现阶段的就业问题具有重要的作用。但从全国范围来看,非正规就业领域仍存在着社会保障的普遍缺失。     

The Role of Emotions in Risk Communication

We present two experiments investigating the role of emotions concerning technological and natural hazards. In the first experiment, technological hazards aroused stronger emotions, and were considered to be riskier than natural hazards. No differences were found between the texts versus audio presentations. However, the presence of pictures aroused stronger emotions and increased the perceived risk. Emotions play a mediating role between hazard types and perceived risk, as well as between pictures and perceived risk. The second experiment adopted real‐world materials from webpages and TV. Emotions again play a mediating role between pictorial information and risk perception. Moreover, specific emotions were found to be associated with different types of action tendencies. For example, loss‐based emotions (e.g., fear, regret) tend to lead to prevention strategies, whereas ethical emotions (e.g., anger) lead to aggressive behavior. We also find that loss‐based emotions in the technical hazard scenario trigger more coping strategies (from prevention to retaliation) than in the natural hazard scenario.