Perceived health problems in swimmers according to the chemical treatment of water in swimming pools

The objective of this study was to determine which chemical treatment used for disinfecting water in indoor swimming pools had the least impact on users' perceptions of health problems, and which generated the greatest satisfaction with the quality of the water. A survey on satisfaction and perceived health problems was given to 1001 users at 20 indoor swimming pools which used different water treatment methods [chlorine, bromine, ozone, ultraviolet lamps (UV) and salt electrolysis]. The findings suggest that there is a greater probability of perceived health problems, such as eye and skin irritation, respiratory problems and skin dryness, in swimming pools treated with chlorine than in swimming pools using other chemical treatment methods. Pools treated with bromine have similar, although slightly better, results. Other factors, such as age, gender, time of day of use (morning and afternoon) and type of user (competitive and recreational), can also affect the probability of suffering health problems. For all of the above, using combined treatment methods as ozone and UV, or salt electrolysis produces a lower probability of perceived health problems and greater satisfaction.     

Floating collection in an academic library: An audacious experiment that succeeded

Can a floating collection thrive in a large multicampus academic research library? Floating collections have been successful in public libraries for some time, but it is uncommon for academic libraries and unheard of for a large academic library system. This article will discuss the investigation into the feasibility of a floating collection at Penn State University Libraries, its implementation, and continuation for a period covering 2009 through 2015. Attaining the floating collection, limited to monographs in the general stacks of campus libraries, proved to be easier to implement than imagined and resulted in unintended benefits as well as some surprises.     

试论南京国民政府对纳粹德国的认识及其影响

20世纪30年代以蒋介石为首的南京国民政府对德国在一战后地位的认识,产生了心理上的亲近感;出于对德国的钦佩和法西斯的好感,使南京政府聘请了大量的德国顾问来训练中国军队,中德关系进入蜜月阶段;但是由于中德交往的矛盾性,德国最终选择日本作为它的政治盟友,中德关系最终走向破裂。     

自主、合作、探究学习与思想政治课教学的整合

加强对"自主、合作、探究学习"理论的学习,构建"自主、合作、探究学习"的课堂教学模式,无论对自主、合作、探究学习活动的有效开展,还是对于思想政治课教学改革的整体推进,都具有十分重要的意义.     

中韩两国教育交流与合作的实态分析

在过去的十多年里,中韩两国教育交流与合作发展顺利,成就斐然,但也存在一些问题。总结两国教育交流与合作的成就,重点分析其中面临的问题及其成因,以期有针对性地提出促进两国教育交流与合作未来发展的建设性意见,进而为两国政府有关部门的决策提供些许参考。     

边境口岸应对区域经济合作策略探讨——以凭祥口岸为例

区域经济合作的日益兴起给边境口岸带来新的发展机遇和挑战,采取正确的应对策略已迫在眉睫。在建设“南宁—新加坡”经济走廊的背景下,凭祥口岸面临功能定位、发展思路和发展战略的重新选择。因此,依托“南宁—新加坡”经济走廊,加快建设凭祥国际大口岸,就要加强硬件建设,提高通关效率,完善各项政策,为中国与东盟陆路的经贸合作创造便捷条件。     

论陈衡哲小说的女性觉醒主题

学术界认为，陈衡哲坚持的是非“女性化”的写作立场。本人认为这一结论不确，陈衡哲的小说创作实则体现了“五四”早期新女性对自由人生的呼唤和渴望，以及对女性自身生命意义、生存价值的思考和探索，是一种真正意义上的女性化写作。     

上海合作组织成员国合作基础分析

上海合作组织成员国合作基础主要有三个方面,即边境安全、联合反恐和经济合作,并且这三个方面之间形成了一个完整的平衡体系,即边境安全是位于中间的支点,联合反恐和经济合作分别是位于两边的两个支架,从而使上海合作组织能够保有旺盛的生命力。     

高职院校实验室管理现状与对策研究

通过时高职院校实验室调查，分析了实验室建设与管理工作中存在的问题；按照应职应岗能力本位、优化结构重组资源原则，提出了独立设置、加强评估、校企合建、师资保障的实验室管理优化方案。     

打击国际恐怖主义应坚持国际法准则

国际恐怖主义是一种严重危害国际和平与安全的国际罪行。国际社会应统一对国际恐怖主义的认识 ,加强反恐怖国际合作。打击国际恐怖主义必须遵循《联合国宪章》及其它国际法准则。联合国在国际反恐怖行动中应发挥主导作用