DINI机构仓储库认证

目的——旨在概述机构仓储库的认证技术以支持德国开放存取活动,同时还描述了德国网络信息初始化计划(DINI)开展的"DINI认证2006"活动。设计方法——DINI对文献和出版物仓库的认证向潜在用户表明,该仓储的运行质量是有所保证的,同时使其区别于一般机构的网络服务。本认证也能够被用作支持开放获取的一个工具。结果——仓储库认证技术虽然不会成为全球性学术信息实现开放获取的主要影响因素,但它能够促进机构仓储库的推广,并提高机构仓储库服务的知名度。研究局限性/意义——DINI认证作为一种"软性"认证,关注的是数字仓储库的互操作性,这是一种正在流行的有指导意义的观点。但是它并不能为可信赖的数字资源长期保存系统提供详尽的审计工具。实践意义——依据特定的组织及技术标准,"DINI针对文档及出版物仓储的认证"推进了德国机构仓储库的发展,同时也为世界范围内数字仓储库的互操作性做出了贡献。原创性/价值——本文描述了德国采用的一个独特方法,同时也适用于其他国家及组织。     

您的梦想有多大？中国，亚太，还是全球？

今天,你们中的大多数人正集中于满足中国数码印刷领域的一些细分市场。中国市场非常大．只要你集中力量,以全新的解决方案逐步深入到关键市场领域,就可以获得巨大成功,尤其是拥有数码印刷解决方案。     

写给中国读者

新年新气象,作为2008年国际化发展战略的重要举措之一,从本期开始,《数码印刷》杂志将从世界范围内遴选印刷行业知名专家,为本刊撰写卷首语（Professional＇s Letter）,请其就数码印刷市场的变化,数码印刷技术的发展,发表自己独到的观点。本期我们邀请到了素有“按需印刷之父”美誉的Frank D.Steenburgh先生,以其《如果创业,我选数码印刷》作为开篇之作,今后,我们将继续邀请其他知名专家,希望他们的言论能给读者耳目一新的感受,并能从中受到启迪。     

Conservation aspects of the concept of time in primary school children

Sixty-two second-, fourth-, and sixth-graders were asked to judge the temporal duration of objects and events when the objects were changed in height or subjected to decay, when an event was reversed, and when an event was given an affective dimension. Nonconservers of time were those who judged that these irrelevant transformations affected the temporal aspects of the objects or events. The shift from nonconservation to conservation of time occurred between the second and fourth grades for most problems. The results indicated that young (under eight or nine years) children's concept of time is surprisingly defective. The relation of these findings to other conservation concepts was discussed.     

博洛尼亚宣言与德国职业技术教育师资培训新模式(一)

博洛尼亚宣言(1999)的执行使德国学位结构发生了重大的变化。博洛尼亚宣言所建议的在给定时间内采用的两级学位授予制度(学士和硕士)对     

Responsible Research and Innovation as a Novel Approach to Guide Educational Impact of Mind,Brain, and Education Research

We propose a Responsible Research and Innovation (RRI) framework to improve the alignment between mind, brain, and education (MBE) research, the educational practice, and other societal stakeholders. RRI is an approach that has successfully been used in different research fields, but not yet in MBE research. After substantiating the need for, and possibilities of using this framework within MBE research, we report a case study to demonstrate the feasibility and benefits of RRI within an MBE context. This case study entails developing an educational intervention to improve learners' sense of agency regarding their own learning processes using neurofeedback. Using RRI, we found that societal stakeholders (teenagers, parents, and teachers) anticipate different potential impacts of this neurotechnology‐based intervention than researchers did, enabling us to adapt the intervention according to these perspectives. This example demonstrates that RRI enables researchers to be reflexive and responsive to the stakeholders needs and values, to ultimately improve the educational and societal value of MBE research.     

Fostering scientific reasoning in education – meta-analytic evidence from intervention studies

Scientific reasoning skills are not just for researchers, they are also increasingly relevant for making informed decisions in our everyday lives. How can these skills be facilitated? The current state of research on supporting scientific reasoning includes intervention studies but lacks an integrated analysis of the approaches to foster scientific reasoning in primary through secondary education. This meta-analysis evaluates effect sizes taken from 30 interventions in experimental and quasi-experimental studies and shows a medium mean effect of interventions on scientific reasoning. Interventions successfully facilitate scientific discovery, scientific argumentation, or nature of science in all age groups. Moderator analyses show that interventions set in constructive and interactive learning activities yield positive effects but do not differ substantially. Although the meta-analysis is limited by the number of studies included, we can conclude that scientific reasoning can successfully be facilitated and we show which characteristics are beneficial in educational interventions.     

Stimulus- and feeder-directed behavior in a long-box: Effect of fixed versus variable time schedules of food presentation

Two groups of 6 pigeons were exposed to either a fixed-time (FT) or a variable-time (VT) schedule of response-independent food presentation. The interval between two successive food presentations (food-food [FF] interval) was either 20 or 40 sec. The duration of stimulus presentation (stimulus-food [SF] interval) was varied relative to the FF interval. All subjects were exposed to different information ratios (IRs; IR = SF/FF; IR = 1.00, 0.50, 0.15). To study the relative contribution of sign- and goal-tracking behavior to keypecking observed in standard autoshaping procedures, pigeons were autoshaped in a long-box. In the long-box, the stimulus key and the feeder are located 60 cm apart. Stimuli were always presented at one end of the box, and food was presented at the other end. Locomotor behavior and keypecks were recorded. Pigeons engaged in sign-tracking behavior when IR = 0.15, but only when presentation of the food was unpredictable on the basis of other variables (e.g., the passage of time since the last food presentation, as in FT schedules). In the case of FT schedules, subjects engaged in feeder-directed activities. No effects of varying the FF interval were found. Keypecking was observed only when the SF interval was short (IR = 0.15) and food was presented on a VT schedule.     

The genetic and environmental origins of language disability and ability

This study investigated whether genes affect language impairment to the same extent as they affect differences in language ability following up an earlier study of 579 four-year-old twins with low language performance and their cotwins (Viding et al., in press). The present study selected low-language twins from 6,963 pairs of twins from the Twins Early Development Study assessed for vocabulary and grammar by their parents at 2, 3, and 4 years of age. For impaired groups corresponding to the lowest scoring 5% and 10% at each age, twin concordances and model-fitting analyses indicated substantial genetic influence on the mean difference between affected children and the population (h2g), generally higher than for individual differences for the entire sample (h2).