電是什么?

在大自然中,電以形形色色的姿態出現。其中最顯著、最普遍的,就是閃電。鄰近北極地帶(如蘇聯的北方)的居民很熟悉這些雄偉的現象:有時候,在夜間的天空上出現了紅、紫、黄、綠各種顏色的寬闊的、明亮的帶子。它們形成火燄般的帷幕,它們離奇地捲起而又展開。這是“北極光”,它的產生就是由於電。在高山上,當空氣相當乾燥的時候,可以看到“電光”。它們表現爲在金屬物體的尖端上的小小的火燄。古     

爱因斯坦在长岛的那个夏天

1939年夏天,爱因斯坦到位于纽约东部的长岛度假.而我的祖父--大卫·罗斯曼,在那里经营着罗斯曼百货公司.6月的一天,爱因斯坦走进店里.尽管祖父一眼就认出了他,但还是把他当作一名普通顾客对待.     

德国的大学和科学

你们已经听说我是一个数学家。我的兴趣一直集中于科学本身，而不是它的科学机构和科学组织。不过，今晚我要谈的主要内容是关于德国的大学和科学研究机构，所以我恳求诸位理解我不是谈论这一主题的专家。我是通过我     

Developing a template for National Child Protection Index Reports

Objectives

What impact does the strengthening of child rights have on the experience and circumstances of children? CRC General Comment 13 emphasizes that defining measurable targets for improvements in child protection is a key element of efforts to strengthen child rights and well-being across the world. This paper describes an attempt to identify key domains relevant to such mapping of child protection indicators, and the feasibility of collecting data—from existing data sources or otherwise—to complete a “National Child Protection Index Report” summarizing achievements and concerns at a national level.

Methods

A process of inter-agency consultation was facilitated by the CPC Learning Network to establish a template for the Index Report. The template was modeled on that used for the “Countdown to 2015” maternal, neonatal and child health initiative, aiming to capture indices not only of key protection risks but also implementation and coverage of key protection measures. The work drew on indicator development and policy initiatives by a number of international child protection agencies. The template developed was used as a basis to pilot national data collection in Indonesia and, at a sub-national level, in northern Uganda.

Findings

The template provides a concise summary of protection issues of relevance to a broad range of constituencies, global and national. However, in the pilot settings, existing routine data collection was inadequate to effectively populate a large proportion of indicators. Mechanisms of collating findings from discrete assessments—another potential source of data for completion of the index report—were also generally underdeveloped.

Practice implications

In settings where state infrastructure allows the collection and analysis of routine data in such domains as health and economic activity, such efforts should be extended to the child protection sector. Discrete assessments by governmental or non-governmental agencies also provide significant potential for more effective sharing and collation of information. National Child Protection sub-clusters or equivalent structures can play an important role in facilitating both of these processes.     

Differential effects of psychological maltreatment on children of mothers exposed to intimate partner violence

Objective

Psychological maltreatment (PM) is the most prevalent form of child abuse, and is the core component of most of what is considered as child maltreatment. The aim of this work was to explore differential adverse outcomes of the different types of PM in the mental health and functioning of children living in homes in which they are exposed to intimate partner violence (IPV).

Method

Participants were 168 children, aged between 4 and 17, whose mothers experienced IPV. They were assessed using different measures of psychopathology and functioning: Diagnostic Interview for Children and Adolescents-IV, Child Behavior Checklists and Child and Adolescent Functioning Assessment Scale. Furthermore, IPV was assessed with the Schedule for Assessment of Intimate Partner Violence Exposure in Children and the Index of Spouse Abuse. Statistical analyses were carried out with regression models adjusted by means of Generalized Estimating Equations.

Results

Spurning was the PM subtype with the greatest global effect on the children, as it was significantly associated with internalizing and externalizing problems. Denying emotional responsiveness specifically increased the risk of internalizing psychopathology and impairment in the emotional area. Terrorizing was not significantly associated with a greater number of negative outcomes in children's psychopathology or functioning in this population.

Implications

The results suggest the importance of taking PM types into account in order to fully understand the problems of children exposed to IPV at home, and for the design of effective treatment and prevention programs.     

大学和社会经济发展的关系

在发言开始前,我想对受邀参加本次校长会议表示感谢,并代表开普敦大学以及南非向清华大学表达诚挚的祝贺和良好的祝愿。如同中国大学一样,我国的大学也正逐步融入世界大学群体。由于数十年的种族隔离制度作祟,来自学术界的杯葛接踵而至,南非的大学与国外同行间的合作或交换关系发展得异常困难与复杂。即使在     

扑克游戏

一张牌可以睡个懒觉,一张牌可以逃学一次,一张牌可以不做作业……这可不是一个天真又懒惰的学生写出来的愿望清单,而是乌伯特·盛旦老师发明的扑克游戏。     

万事俱备

课文大不同 你是否好奇过大洋彼岸的孩子们在读着怎样的课文？你是否遥想过父辈们当年所念的书本？本栏目就带你去瞧瞧那些曾经或正在与你同龄的伙伴们都在学习着怎样的课文．探寻精彩纷呈的语文世界。