曲安奈德与硅凝胶治疗增生性瘢痕的临床对照研究

目的：比较曲安奈德与硅凝胶治疗增生性瘢痕的临床疗效。方法：将70名受试者的试验序号随机分为实验组和对照组,实验组采用曲安奈德治疗,对照组采用硅凝胶敷料治疗,治疗后对二者的临床疗效进行比较。结果：实验组的总有效率明显高于对照组总有效率,差异有显著性。结论：曲安奈德治疗增生性瘢痕的效果要优于硅凝胶,总有效率高,值得临床推广和应用。     

Representation strength in pigeon short-term memory: Effect of delay training

An attempt was madeto manipulate the strength of internal stimulus representations by exposing pigeons to brief delays between sample offset and comparison onset in a delayed conditional discrimination. In Experiment 1, pigeons were first trained on delayed conditional discrimination with either short (0.5-sec) delays or no delays. When delays were increased by 2.0 sec, birds trained with a delay performed at a higher level than did birds trained with no delays. In Experiment 2, subjects were first trained on a delayed simple discrimination. Following a circle stimulus, responses to a white key were reinforced; however, following a dot stimulus, responses to the white key were not reinforced. The pigeons were then trained on a delayed conditional discrimination involving hue samples and line-orientation comparisons with differential outcomes. Choice of vertical following red yielded food; choice of horizontal following green yielded no food. Mixed delays were then introduced to birds in Group Delay, whereas birds in the control group received overtraining. When tested on a delayed simple discrimination with hue stimuli (red and green initial stimuli followed by white response stimulus), pigeons in Group Delay tended to perform at a higher level than did birds in the control group (i.e., although the birds in both groups responded more following red than following green, birds in Group Delay did this to a greater extent than did birds in the control group). Thus, experience with delays appears to strengthen stimulus representations established during training.     

46例幽门螺杆菌相关性十二指肠溃疡治疗分析

对４６例幽门螺杆菌相关性十二指肠溃疡给予羟氨苄青霉素、灵滴灵、痢特灵以及雷尼替丁联合治疗，观察６个月，溃疡愈合率达８４．７％，幽门螺杆菌根除率７３．９％，幽门螺杆菌根除组溃疡愈合率９４．１％，明显视于未消除组。     

浅谈极限计算法的分类

本文给出初等函数和由初等函数构成的分段定义的函数的极限计算的常用方法。讲明定义区间内初等函数值等于极限值。在某些“未定义”点的极限则以例的方式分类详细分析阐述。     

双语教学资源中心建设

为促进我国双语教学研究、实践及发展,由教育部立项,浙江大学承建了"全国高校双语教学资源中心(BTRC)".双语教学资源中心的建设为高等院校双语教学教师提供双语课程、教材、教学研究、教学改革等教学资源信息的在线浏览和下载,也为教育部与有关高校的管理部门和广大师生构筑了一个交流平台.     

实践校训 弘扬大学精神

大学校训是一所大学特有精神的表征,是大学精神的核心与灵魂。校训最能反映一所大学的精神力量与精神追求,是对大学精神内核的高度概括。因此,实践大学校训,可以弘扬大学精神。     

WHAT ADOLESCENTS KNOW ABOUT AGING

Increasing the amount of contact with older adults is often proposed as a way to inform young people about aging. This study compares adolescents’ knowledge of aging with the amount and quality of contact they have with an older adult and compares adolescents’ knowledge of aging in 1978 with their knowledge in 1985. The results indicate that adolescents are very misinformed or uninformed about aging and older adults. Profiles of the responses on individual items from Palmore's “Facts on Aging” reveal qualitative differences associated with gender, degree of contact, and changes over time in the nature of the adolescents’ knowledge of aging. How adolescents perceive older adults and the implications this has for educational efforts are discussed.     

建设中小学信息资源保障体系的必要性和现实意义

针对我国中小学文献信息资源建设和利用的现状，探讨建设中小学信息资源保障体系的必要性和现实意义。