苯胺衍生物掺杂的PMMA薄膜的二次非线性光学性能的稳定性研究

具有A-π-D电子结构的苯胺衍生物掺杂的玻璃态高聚物PMMA的有机薄膜经极化取向后显示很强的二次非线性光学性能,其取向弛豫是实用化的一个有待解决的重要问题。木文通过几种苯胺衍生物以不同百分比与PMMA掺杂,用紫外-可见吸收光谱、二次谐波强度测量、动态力学粘弹谱等方法进行了取向弛豫的机理研究,结果表明分子尺寸和形状以及偶极矩的大小对取向弛豫有显著影响。     

Auditory Perception and the Control of Spatially Coordinated Action of Deaf and Hearing Children

From birth onwards, auditory stimulation directs and intensifies visual orientation behaviour. In deaf children, by definition, auditory perception cannot take place and cannot, therefore, make a contribution to visual orientation to objects approaching from outside the initial field of view. In experiment 1, a difference in catching ability is demonstrated between deaf and hearing children (10-13 years of age) when the ball approached from the periphery or from outside the field of view. No differences in catching ability between the two groups occurred when the ball approached from within the field of view. A second experiment was conducted in order to determine if differences in catching ability between deaf and hearing children could be attributed to execution of slow orientating movements and/or slow reaction time as a result of the auditory loss. The deaf children showed slower reaction times. No differences were found in movement times between deaf and hearing children. Overall, the findings suggest that a lack of auditory stimulation during development can lead to deficiencies in the coordination of actions such as catching which are both spatially and temporally constrained.     

中西结合治疗椎动脉型颈椎病62例临床观察

1 临床资料 本组62例中,男38例,女24例;年龄最大67岁,最小21岁,平均36岁;病程最长8 a,最短2个月,平均15个月.全部病例均有眩晕症状,常在颈部旋转或屈伸时出现或加重,伴颈枕部不适或疼痛,颈肌僵硬.伴耳鸣32例,伴恶心或呕吐23例,伴上肢麻木感15例.     

面神经管及其定位的研究

本文对80侧颞骨标本研究结果表明,面神经在内耳道、迷路段、水平段和垂直段的长度((?)±SD,mm)成人分别为:12.30±2.47、3.84±0.58、9.95±3.16、11.88±2.37;儿童为11.21±2.27、3.75±1.11、9.66±1.34、11.67±1.75,同时还观测了面神经管与周围结构的关系,为 Bell 面瘫减压术和面神经修补术提供了形态学依据。     

元认知能力在医学生临床实习中的培养

元认知能力在医学生临床实习过程中起着非常重要的作用。培养医学生的元认知能力 ,必须丰富医学生的元认知知识 ,强化医学生的元认知体验 ,促进医学生加强元认知监控 ,从而使他们成为独立自主、有创造力的学习者。     

重组毕赤酵母表达期菌体浓度的软测量模型

建立了用于在线估计高密度重组毕赤酵母培养过程中处于表达阶段的菌体密度软测量模型。分别对比了基于遗传算法（GA）的动力学软测量模型以及基于人工神经网络（ANN）的软测量模型，并对神经网络软测量模型的拓扑结构以及训练参数进行了初步探讨。当采用基于遗传算法（GA）的动力学模型，模型拟舍值的最大误差为7．63％；在采用神经网络软测量技术时，选取合适的模型结构和输入参数，最大误差为3．12％，而且软测量模型可以很好地反映菌体浓度实时变化趋势。该研究结果表明，在酵母细胞的高密度培养过程中采用基于神经网络的软测量模型具有较高的准确度，可以较好地实时反映发酵过程中菌体浓度的变化。     

任职教育实施过程中的问题与对策

本文在实践总结和调查研究的基础上，从实施岗位任职教育的各个环节出发，就部队任职教育学员、教员和管理部门三方面存在的问题作了探讨，并提出相应的建议。     

中药材仿生栽培的理论与实践

采用生态工程和现代农业生产技术,模拟野生药用植物群落的自然生态系统,开展中药材的仿生栽培,是中药材规范化栽培的一种新模式,在中药农业上日益受到重视.中药材仿生栽培是一种生态种植模式,为中药学、农学、园艺学、生态学、农业工程学和管理学等多学科的交叉与融合,在促进中药资源的可持续利用,改善生态环境和实现人与自然的和谐共处方面有着显著优势,在中药材生产上应大力发展和推广.     

高等医药院校大学生健康人格培养模式研究

健康人格是个体身心顺利发展的重要保证，是大学生适应社会、充分发挥自己能力的心理基础。而目前许多高等医药院校在大学生健康人格培养方面，普遍重视不够。本文从学校、教师、失学生自身三个角度，试探索出一套适合高等医药院校大学生健康人格建立和发展的培养模式，以期为对以后的心理健康教育工作有一定的启发和指导作用。     

The effects of problem-solving training on two problem-solving tasks

The present study assessed the effects of problem-solving (D'Zurilla & Goldfried, 1971) training on two problem-solving tasks. Sixty-one subjects were assigned randomly to and trained in one of the following groups: general orientation (GO)-problem definition (PD)-generation of alternatives (GA)-decision making (DM), GO-PD-GA, GO-PD-DM, GO-GA-DM, GO, and a control group. The six groups did not differ significantly at pretesting on the measures of selecting the best alternative solution and describing problem-solving behaviors used to solve problems. Training was significantly effective on selecting the best alternative solution for all groups compared with the control group at the time of posttesting. The GO-PD-GA-DM and GO-PD-DM groups described significantly more problem-solving behaviors than the GO-PD-GA, GO-GA-DM, and GO groups. All five treatment groups performed significantly better than the control group at the time of post-testing. At follow-up 1 month after posttesting, groups trained with the PD component selected significantly better alternatives than the groups without PD training. Groups trained with the DM component described significantly more problem-solving behaviors at follow-up than the groups trained without the DM component.