面向学习者的数学问题解决教学设计——信息技术与数学课程整合的视角

问题解决能力是数学教学的核心目标。数学教学是基于“问题解决学习”的教学,数学教学设计应当是问题式教学与问题式学习的对立统一关系的设计。“问题解决教学”重视从宏观上、整体上让学生把握数学学科的基本结构,倡导“整合认知,框架推进”,围绕“主题”进行教学设计,各个教学环节构成了一个完整的知识建构过程,在每一环节,各种教学模式可灵活选用。     

上海方言的话题疑问句与命题疑问句

研究发现:上海方言疑问句系统里存在着"话题疑问句"与"命题疑问句".前者是"S伐?"后者是"S,VP伐?"并且进行了多角度的比较,指出命题疑问句不但数量多,而且是优势句式.两种疑问句存在着一系列的区别点,从中可以看到一些有趣的语言现象以及演变特点:1.多个来源,导致多元化.2.两类互补,形成主流化.3.多类消长,导致杂糅化.     

The world without Bandung,or for a polycentric system with no hegemony

The first wave of revival of States and nations of Asia and Africa which shaped major changes in the history of humankind organized itself in the Bandung spirit in the frame of countries Non-Aligned on colonialism and neo colonialism, the pattern of globalization at that time. Now, the same nations, as well as those of Latin America and the Caribbean, are challenged by neo-liberal globalization, which is no less imbalanced by nature. Therefore, they must unite to face the challenge successfully as they did in the past. In some countries “sovereign” projects are developed that associate active State policies aimed at systematically constructing a national integrated consistent modern industrial productive system, supported by an aggressive export capacity. Views with respect to the degree, format and eventual regulation of opening to foreign capital and financial flows of all kinds (foreign direct investments, portfolio investments, speculative financial investments) differ from country to country. Policies pursued with respect to the access to land and other natural resources also offer a wide spectrum of different choices and priorities.     

学术权力与行政权力并非对称的概念——对学术权力与行政权力二分法的质疑

我国学者把高校中存在的权力现象简单地分为学术权力与行政权力,把学术权力简单地概括为学术人员所拥有和控制的权力,行政权力是行政人员享有的权力.实际上,学术权力是对学术事务的影响力或学术事务管理的权力,与行政权力不是一个对称概念.     

关于20世纪中外文学关系研究的梳理与思考

作为一门跨学科研究,20世纪中外文学关系的研究与比较文学、中国现当代文学的学科发展密切相关.该研究方向在发展初期吸收了影响研究的思路和方法,在原始资料的搜集、整理,以及20世纪中外文学的交流和比较研究等方面,取得了相当的成绩,同时也面临着新的挑战,研究者们对影响研究的质疑、关于"20世纪中国文学中的世界性因素"的提出、对"文学性的重申"等,都是试图使20世纪中国文学能以对等的姿态进入世界文学的多元格局中,并以自己的独特创造丰富世界文学,20世纪中外文学关系研究也将在不断的质疑与尝试中,寻求自身的突破与发展.     

国内外信息化人才建设的经验及启示

信息化人才是目前国内外竞争最激烈的稀缺资源,全球新一轮的信息化人才争夺具有其新的态势和特点,国内外先进地区信息化人才建设的做法和经验,给了我们新的启示.     

Leveraging microgrants to support capacity-building workshops in low- and middle-income countries for meeting the Sustainable Development Goals

Twenty fifteen marked the year of assessment for the Millennium Development Goals (MDGs). The MDGs that achieved the greatest success were those where evidence-based practice (EBP) interventions were implemented. The ability to practice evidence-based medicine is grounded in the creation of and access to medical literature that synthesizes research findings. The role that global health literature played in the success of the MDGs demonstrates that medical libraries and librarians have a role to play in achieving the Sustainable Development Goals (SDGs).Librarians can hold capacity-building workshops that provide instruction on how to access evidence-based literature and also train health professionals to conduct synthesis research. Research findings conducted by in-country health professionals are more likely to address issues being faced by local communities and will afford the possibility of obtaining the necessary evidence-based answers that can then be used to implement policies to resolve public health issues identified in the SDGs.This paper discusses how an international team of librarians leveraged funding from a Medical Library Association/Librarians without Borders/Elsevier Foundation/Research4Life grant to hold a capacity-building workshop in Zimbabwe and follow-up online trainings. The workshop focused on accessing evidence-based resources and conducting synthesis research. Outcomes included the creation and policy implementation of evidence-based knowledge products in alignment with local needs and galvanizing a multisectoral group of key individuals who have gone on to collaborate toward the vision of creating a Zimbabwe innovation hub. Looking ahead, such grants can be leveraged to conduct capacity-building to support knowledge translation and other local training needs.     

大面积建成区建筑密度遥感制图产品的精度验证

大面积建成区建筑密度遥感制图产品能够提供土地开发强度与人类居住环境的基础信息,是支撑人居环境研究和土地利用规划的重要数据。全球人类居住区层（global human settlement layer,GHSL）是由欧盟联合研究中心负责的大面积人居环境制图项目,建成区建筑密度遥感制图产品是GHSL重要的组成部分。目前该产品在欧美地区已经完成了GHSL建成区建筑密度遥感制图产品的验证。然而以中国为代表的东亚区域的建筑物形态和城市布局与欧美等区域有较大的差别,有必要在亚洲地区对其进一步验证。以中国的5个典型城市（上海、西安、长春、昆明和乌鲁木齐）大面积单体建筑物分布图为基础,通过聚合分析和邻域关键点搜寻匹配等算法,生成中国建成区建筑密度栅格图像产品作为验证数据,然后通过回归分析等方法,在像元尺度上对GHSL建成区遥感制图产品进行评价验证。结果显示,GHSL建成区建筑密度产品在较低分辨率下可以反映中国地区建筑密度情况,但在较高分辨率下在高值区过高估计密度。本研究可以为中国地区研发建成区建筑面积密度产品提供依据。     

寒春过后看世界“变暖说”

本文针对目前的热点话题——全球气候变暖,提出了三个疑问：气候真的在异常变暖吗？气候变暖真的有害吗？即便气候真的在异常变暖,主要是人为排放温室气体所致吗？经论证分析,本文认为气候变化是一个还没有定论的科学前沿问题,和政治、经济有关,但应该和公众无关。     

中国气候对全球气温增暖的响应

近４０年来，在全球气候变暖的背景下，中国气候也有明显的增暖趋势，北部增暖最明显，与全球平均温度变化相似，长江流域变暖不明显．冬季增暖最突出，夏季在部分地区有降温现象．近４０年，全国平均降水量趋于减少，北部减少最明显，中心在华北及山东半岛；长江中上游降水偏丰．表明近期我国气候对全球气温变暖的响应特点，主要表现表式：北方为暖—干型；长江流域为冷—湿型；华南大部为弱暖—干型