论地理学科学研究与创新的思维方法

科学思维对地理学研究及知识创造起着指导性作用。分析与综合 ,归纳与演绎、类比、科学假说等思维方法是地理、地质学等学科科学研究与知识创新中常用的思维方法。     

当前播音主持教学中存在的问题及解决对策

随着我国社会经济文化事业的快速发展,广电事业也在持续发展,我国对于优秀播音主持的需求量大增。但是,播音主持专业的大学毕业生质量却难以满足现实需求。本文分析了当前播音主持教学中存在的问题,提出了解决播音主持教学中存在问题的对策。     

Current studies on two populations: childbearing teens and women with cesarean births

Young women in their teen years and women who have had previous cesarean births are two special groups taught by Lamaze Certified Childbirth Educators. This review includes research related to both groups. Information collected from these studies can help childbirth educators assess their programs and plan appropriate classes that address the particular needs of each group.     

科技资源管理绩效评估指标体系研究

科技资源管理绩效评估指标的制定是为了掌握科技资源活动状况,对科技资源管理的效果、效率以及适应 性进行评估,以便最大限度发挥科技资源的价值。文章从科技装备资源管理绩效、科技信息资源管理绩效、科技组织资 源管理绩效以及科技中介资源管理绩效等要素出发,构建科技资源管理绩效评估指标体系,并确定各级指标权重,以期 通过评估指标的计算,得出评估结果来优化科技资源配置,达到科技资源科学规划、有效开发和高效利用的目标。     

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。     

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。     

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.     

基于泛在信息社会/环境的数字参考咨询服务

本文界定了数字参考咨询服务的概念,简要介绍了数字参考咨询服务特点;回顾了数字参考咨询服务的历史;对在泛在信息社会/环境下的数字参考咨询服务的模式给予了推介,同时对数字参考咨询服务的发展远景进行了展望。