The effects of wild cruciferous host plants on morphology, reproductive performance and flight activity in the diamondback moth,Plutella xylostella (Lepidoptera: Yponomeutidae)

The wild crucifers,Rorippa indica andLepidium virginicum, are known to serve as host plants for the diamondback moth (DBM),Plutella xylostella, but they are less suitable than the preferred cultivated cruciferous plant, cabbage, in terms of adult body size and fecundity. The life history traits and flight activity of DBM adults grown on various host plants were investigated. The adults thus reared on each host plant were divided into three size groups (small, medium and large). In general, female adults grown on the wild crucifers were less fecund and lived longer than those reared on cabbage. Flight activity was higher in adults grown on wild crucifers than in those reared on cabbage. Male adults flew longer than females. Fecundity, longevity, flight activity and morphometrical characters of adults were positively correlated with pupal weight in individuals reared on the same host plant. A negative relationship was found between fecundity and flight activity in females of the same size group, but a positive one was observed in females reared on the same host plant.     

广义加权海明距离法在评价我国公体教师中的应用

采用广义加权海明距离法对我国普通高校公共体育（以下简称公体）教师进行综合评价。目的在于摒除单纯经验定性的弊端，提高科学量化的宏观控制与微观分析水平，更好地指导评价（评估）工作。调动教师的工作积极性。     

基于真实反射场景的SAR原始回波数据模拟

针对ＳＡＲ（合成孔径雷达）原始回波数据模拟，提出了一种基于真实反射场景的模拟算法，并对算法中的关键问题，如距离走动误差注入、质心偏移误差注入、Ａ／Ｄ量化误差分析等进行了分析。该算法利用机载和星载ＳＡＲ成像数据进行了模拟实验，证明其模拟的效果理想，算法运算量小，易于实现。     

医学院校生物教学改革的思考与实践

为适应生命科学与医学科学的发展和社会卫生保健需求的变化,满足医学领域对高级医学人才的知识和能力结构的新要求,辽宁医学院用细胞生物与遗传学基础课程替代了之前的医用生物学课程。从新课程的教材选择、理论及实验教学内容的确定等方面着手,进行教学改革,具有一定的现实意义。     

与时俱进改革师专生物专业实验课

面对生物科学技术的高速发展和中学新一轮教学改革的形势 ,师专生物专业实验课要怎么办 ?要立足本省高师教育实际 ,从本校生物专业实验教学实际出发 ,面向中学 ,从实验教学观念、实验教学内容 ,实验教学方法等多方面入手 ,认真开展专业实验教学改革。     

What Level of Statistical Model Should We Use in Small Area Estimation?

If unit‐level data are available, small area estimation (SAE) is usually based on models formulated at the unit level, but they are ultimately used to produce estimates at the area level and thus involve area‐level inferences. This paper investigates the circumstances under which using an area‐level model may be more effective. Linear mixed models (LMMs) fitted using different levels of data are applied in SAE to calculate synthetic estimators and empirical best linear unbiased predictors (EBLUPs). The performance of area‐level models is compared with unit‐level models when both individual and aggregate data are available. A key factor is whether there are substantial contextual effects. Ignoring these effects in unit‐level working models can cause biased estimates of regression parameters. The contextual effects can be automatically accounted for in the area‐level models. Using synthetic and EBLUP techniques, small area estimates based on different levels of LMMs are investigated in this paper by means of a simulation study.     

国家形象构成体系及其建模之研究

"国家形象类地球圈层结构生态体系模型"以地球圈层构造模型为类比,以"源像"和"化像"为次级形象体系,以"硬形象"和"软形象""我象"和"他象"为再次级形象体系,呈现了一个融整体观、动态平衡观、辩证观和建构观为一体的国家形象生态体系。基于国家形象研究的跨学科特性和碎片化不足,遵循自内到外、由主体到客体的基本建构逻辑,建构的是一个三级形象体系结构,以期形成更加系统辩证的国家形象观。     

构建整合人文教育的生物类专业课程体系探析

讨论了在生物类专业课程体系中整合人文教育的必要性。从通识教育课程、生物学理论课程、生物学实验课程、生物科学史课程、生物伦理学课程五个方面剖析了整合人文教育的生物类专业课程体系结构。对该课程体系的实施提出了几点建议。     

康德法权概念的形而上学基础

对康德法权学说的认识和理解必须建立在对康德整个批判哲学体系的宏观把握基础之上。文章首先根据康德先验哲学的路径阐明其法权概念的形而上学基础,然后通过回答法权命题的先天综合判断何以可能的问题论证法权的普遍有效性,最后按照范畴的先验演绎的思路阐述法权概念的演绎过程,以期在康德批判哲学的宏观视域中把握其法权概念的实质。     

基于环境可持续性的企业战略绩效管理体系

针对经济全球化进程中,环境可持续性对企业竞争力带来的深远影响,提出建立基于环境可持续性的企业战略绩效管理体系。它融合了平衡计分卡及环境绩效评价体系,能全面地对企业的业绩实施战略管理。同时,还引入模糊加权平均模型对企业的绩效进行具体计算,从而帮助企业找出运作上的弊端所在,不断提高企业竞争力。