韩国汉语习得者普通话声调感知能力的发展

观察韩国汉语习得者习得汉语时间的长短与他们在识别普通话四声时的脑偏侧化之间的关系。,笔者随机任意抽取30例以韩语为母语的韩国汉语习得者为研究对象,年龄是22.96±2.62岁,根据韩国汉语习得者学习汉语时间的长短分为24个月以内、36个月以上两组。用双耳分听技术进行普通话元音音节四声的识别测试,统计元音音节四声识别的错误率。结果发现学习汉语24个以内的韩国汉语习得者“阴平”和“去声”感知的双耳主效应显著（P＜0.05）,右耳（大脑左半球）反应时间显著低于左耳（大脑右半球）;双手主效应显著（P＜0.05）,左手反应时间显著低于右手。学习汉语36个以上的韩国汉语习得者“阴平”“去声”和“上声”感知的双耳主效应显著（P＜0.05）,右耳（大脑左半球）反应时间显著低于左耳（大脑右半球）。“阴平”感知的双手主效应显著（P＜0.05）,左手反应时间显著低于右手。笔者得出学习汉语24个月以内的韩国汉语习得者在识别普通话元音音节四声“阴平”和“去声”时显示出显著的右耳（大脑左半球）优势。36个月以上的韩国汉语习得者的声调感知发展的结果是右耳（大脑左半球）感知“上声”能力的提高。     

网络写手多是理工科背景的原因研究

网络文学在中国发展迅速,借助网络迅速快捷的特点,网络文学中出现了许多广受读者欢迎的作品,但也充斥着一些糟粕。通过分析近几年的网络作品及网络写手,发现一大部分网络作家均是理工科背景出身,他们的作品打破了文科生才能写出优秀文艺作品的局限。网络作家理工科背景出身的社会现象有其存在的合理性：理科生文学创作中少了更多的文论束缚;电子媒介使右脑功能突出,淡化了文理分科的专业界限;理性是文艺创作不可缺少的部分。     

Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere

In recent decades, terrestrial vegetation in the northern hemisphere (NH) has been exposed to warming and more extremely high temperatures. However, the consequences of these changes for terrestrial vegetation growth remain poorly quantified and understood. By examining a satellite-based vegetation index, tree-ring measurements and land-surface model simulations, we discovered a consistent convex pattern in the responses of vegetation growth to temperature exposure (TE) for forest, shrub and grass in both the temperate (30°−50° N) and boreal (50°−70° N) NH during the period of 1982−2012. The response of vegetation growth to TE for the three vegetation types in both the temperate and boreal NH increased convergently with increasing temperature, until vegetation type-dependent temperature thresholds were reached. A TE beyond these temperature thresholds resulted in disproportionately weak positive or even strong negative responses. Vegetation growth in the boreal NH was more vulnerable to extremely high-temperature events than vegetation growth in the temporal NH. The non-linear responses discovered here provide new insights into the dynamics of northern terrestrial ecosystems in a warmer world.     

新式人工天空半球设计理论及其构造方法

介绍笔者对全阴天空半球内表面照度和亮度分布的理论分析成果,为全阴天空半球的设计和改建提供理论依据;以作者自行设计建造的天空半球为例,推荐说明一种简易的构造方法,以提供技术方法参考。     

右脑对创造性问题解决的贡献:来自国外的研究证据

右脑开发和创造性培养是当前教育和心理学界的两大热点。国外关于右脑对创造性问题解决的贡献,主要表现为非语言依赖性、避免固有成见、获得次要性解释、认知结构重建诸方面。这些研究成果对进一步研究创造教育有启示。     

左右脑功能差异研究对学习方式变革的若干启示

关于左右脑功能差异的研究对当今学习方式的变革有着重要影响。本文分别从快速阅读、直觉学习、跳跃超前学习、潜意识学习、个性化学习风格、不同的学习策略和．学习状态等七个方面,阐述了左右脑功能差异研究对学习方式变革走向的若干启示。     

普通高校体育课"全脑教学"可行性分析

近些年来,有关脑科学方面的研究空前高涨,随着大脑工作机制的深入研究,为教育学的发展带来新的突破,出现了"全脑教育"这一新的教育理念。本文依据这一理念,提出在普通高校的体育教学中实施"全脑教学"的设想,阐述了在体育教学中实施的社会学背景,并进一步分析了实施的生理心理学和体育学依据,最终得出了实施的可行性。     

Extinct Tibetan Fox Suggests High Tibet Was Cradle of Evolution for Cold-adapted Mammals

<正>For the last 2.5 million years,our planet has experienced cold and warm,millennia-long cycles that collectively have become known as the Ice Age.During cold periods,continental-scale ice sheets blanketed large tracts of the northern hemisphere.As the climate warmed up,these colossal glaciers receded,leaving Yosemite-like valleys and other majestic geologic features behind.The advance and retreat of the ice sheets also had a profound influence in the evolution and geographic distribution of many animals,including those that live today in the Arctic regions.A new study published online on June 11 in the Proceedings of the Royal Society B:Biological Sciences identifies a newly discovered 3-to 5-million-year-old