Is there an impact of household computer ownership on children's educational attainment in Britain?

If personal computers (PCs) are used to facilitate learning, then a home computer might be considered a potential input in an educational production function. Using data on British youths from the British Household Panel Survey between 1991 and 2001, this paper explores the link between ownership of a home computer at ages 15 and 17 and subsequent educational attainment in the principal British school examinations taken at ages 16 (GCSEs) and 18 (A-levels). The data show a significant positive association between PC ownership and the number of GCSEs obtained and with the probability of passing five or more GCSEs. These results survive a set of robustness tests, including using other household durables and “future” PC ownership as proxies for household wealth and other unobservable household level effects. Home computer ownership is also associated with a significant increase in the probability of passing at least one A-level and with an increase in the probability of successfully completing three or more A-levels, conditional on having passed at least one A-level.     

可持续发展观与生存观念的转变

作为人类生活中的一项具有实质内容与深远意义的变革,可持续发展观不仅是人类社会运作模式的自主性的和整体性的变革,而且必然还包含着并要求具体体现为人类社会诸主体的生存观念的重大变革,这就是从那种根深蒂固的动物性的、重占有的、片面的生存观念（“生存1”）提升到注重生存意义与生命质量,强调人、社会、自然全面协调发展因而具有自我反思、约束及调节机制与效应的属人的 生存观念（“生存2”）。传统的唯经济发展观之所以只能从“生存1”法理解人的生存,在于其人的假设是“经济人”与“动物人”,而可持续发展之对应于“生存2”,就在于相应的人的假设是“全面发展的人”,也只有从“全面发展的人”所蕴含的“生态人”去理解,“生存1”才能得到积极的和建设性的理解。所谓“一要生存、二要发展”中的“生存”也需要从“生存2”去理解,发展只是实现生存的手段,“生存2”才是发展的目的。在全球化背景下,中华民族的可持续发展与振兴道路所指向的目标绝不只是“生存1”,而是“生存2”。     

Preparation and in vitro studies of microencapsulated cells releasing human tissue inhibitor of metalloproteinase-2

INTRODUCTION Cell encapsulation in biocompatible and semipermeable polymeric membranes is an effective method for immunoprotection, regardless of the type of recipient (allograft, xenograft, etc.). The semipermeable nature of the membrane prevents high molecular weight molecules, antibodies and other immunologic moieties from coming into contact with the encapsulated cells and destroying them as foreign invaders, but permits the entry of nutrients and oxy- gen and the exit of therapeutic p…     

Human cytomegalovirus induces alteration of β-actin mRNA and microfilaments in human embryo fibroblast cells

Objective: To investigate the infection of human embryo fibroblast cell line HF cells by CMV as well as the effects of CMV on β-actin mRNA and microfilaments. Methods: HF cells shape was observed after the infection of CMV. RT-PCR assay was used to detect the mRNA expression of CMV immediate early (IE) gene, β-actin and GAPDH genes of HF cells infected by CMV. CMV particles and cell microfilaments were detected with electron microscope. Results: Shape of HF cell changed after the infection by CMV. HF cells infected by CMV could express IE mRNA and the expression of β-actin mRNA decreased in a time-and titer-dependent manner compared with the uninfected HF cells whose expression of GAPDH mRNA did not change much. CMV particles were found with electron microscope in the cells. Microfilaments were ruptured and shortened after the infection of CMV. Conclusion: CMV can not only infect human embryo fibroblast cells line HF cells and replicate in the cells, but can also affect the expression of β-actin mRNA and the microfilaments. Project (No. 001103058) supported by the Key Program of Science and Technology Bureau of Zhejiang Province, China     

略论篮球专修班学生裁判能力的培养

篮球裁判员作为篮球工作的重要部分,其裁判能力对篮球比赛的顺利进行和推动篮球运动的发晨方向起重要作用.根据现代篮球运动的特点和发展趋势,论述专修班学生成为一名合格的裁判员的裁判能力,并探讨成为一名合格的篮球裁判员途径.     

政府道德责任与政治文明建设

现代政治文明的实现关键在于建设责任政府。政府责任的根本在于其道德责任。强化政府道德责任有助于深化理解政治文明理论，从根本上防腐倡廉。针对政治活动的特点，从以下四方面提出促进政治文明的一些伦理理念与具体措施。政府道德责任是政治文明理论核心的基石；行政活动中的自由裁量权需要政府的道德责任关怀；政府的道德责任是政治活动中灰色地带的净化器；政府道德责任是反腐倡廉的根本武器。政府道德责任对于政治文明建设意义重大。     

对“许霆案”重审判决的法律思考

2008年3月31日,广州市中级人民法院对“许霆案”进行了重新审理,最后判决被告人许霆犯盗窃罪。法院认定许霆的行为构成盗窃罪是不合理的,应当判决许霆无罪。“许霆案”的发生带来了新的法律问题,我国立法应当尽快加以完善,以适应科学技术的发展。     

论"解蔽"意义上的"明于天人之分"

荀子的"明于天人之分",旨在彰显天、人之间的界际."解蔽"是"明于天人之分"的必然法则和理路,通过解天人关系之"蔽",所指向的则是"知天"和"敬已".但,由"解蔽"而"分",也内涵着"天功"和"人治"的沟通,故而成就和完善人治之功及天道相对于人的意义.     

论作为心理学概念的体验

体验是人的精神生活的重要内容之一,是个人在亲心经历或亲身经历的基础上,通过情感评价,对事物关系进行价值判断的心理活动。体验来自生活,是对某种生活的反思,具有直观性、整体性、独特性、情感性、内隐性。体验对于提高学生的认识水平,培养学生的主体性,促进学生的品德发展具有重要意义。     

论知识经济时代高校图书馆员的人文素质教育

知识经济时代对劳动者的人文素质提出了更高的要求，高校图书馆是对大学生进行人文素质教育的良好场所，馆员在大学生人文素质教育中扮演重要角色，提高馆员人文素质已经成为新时期图书馆员继续教育的重要内容。