在非生物专业开设人类遗传学导论课的必要性   总被引：1，自引：0，他引：1  

白丽荣  李建明 《衡水学院学报》2006,8(3):49-50

21世纪是生命科学的世纪,同时也是学科交叉大发展的时代。因此,必须打破传统的教育理念和条块分割的知识结构。在高校非生物专业开设人类遗传学导论课是提高中华民族遗传素质的迫切需要;是适应21世纪学科交叉、培养复合型人才的需要;是培养大学生树立正确的人生观、道德观,对大学生进行素质教育的需要。  相似文献   

地方政府间跨区域合作治理中信息不对称问题初探   总被引：7，自引：0，他引：7  

曹满云  戚兴宇 《乐山师范学院学报》2006,21(1):100-103

在地方政府间跨区域合作治理中,信息不对称问题有多种表现形式,容易引起地方政府间不信任,阻碍区域资源的整合;其产生的主要原因在于观念错误、资源的差异、利益冲突和制度缺位;因此,可以通过纠正观念、平衡利益及搭建制度等措施来克服这一问题。  相似文献   

HK积分的Rubinowicz表示     

徐寿泉 《怀化学院学报》1993,(6)

本文在论证Rubinowicz表示的存在性同时;剖析了Rubinowicx表示在衍射问题中的应用。  相似文献   

Redesign of a conformal boundary recovery algorithm for 3D Delaunay triangulation   总被引：3，自引：0，他引：3  

CHEN Jian-jun ZHENG Yao 《浙江大学学报(A卷英文版)》2006,7(12):2031-2042

INTRODUCTION The Delaunay criterion provides a good way to triangulate a given point set. However, the prede- fined point connectivity is not certainly preserved during the triangulation, and some boundary con- straints may be lost in the resulting triangulation. Therefore, the recovery of missing boundaries be- comes an important topic. 2D boundary recovery problem turns out to be much easier to resolve in theory and practice than its 3D counterpart. It has been shown that there are cer…  相似文献   

讨论分段函数在分界点处极限、连续性及导数的定理     

任树联 《宜春学院学报》2006,28(4):15-16,38

文章通过阐述分段函数的本质特征,给出讨论分段函数在分界点处极限、连续性及导数的定理,解决在讨论分段函数的极限、连续性及导数时,为什么要在分段函数的分界点处进行讨论以及怎样讨论的问题.  相似文献   

基于拟合函数的艾滋病治疗模型的评价     

魏连秋 《衡水学院学报》2007,9(1):76-79

艾滋病的治疗方法很多,为了能够准确、及时、有效地治疗艾滋病,需要从众多的治疗方案中找到合适的一种,为此利用拟合函数、边际疗效和性价比建立了一个评价艾滋病疗法优劣的数学模型.并利用计算机中的数据库知识对该数学模型进行了分析,使它更接近现实生活中艾滋病的治疗.  相似文献   

玉米自交系的配合力遗传分析     

李凤艳  张兴华  张仁和  南文华  赵永 《西安文理学院学报》2006,9(3):39-42

采用完全双列杂交试验设计,对8个玉米自交系的10个主要性状的配合力和群体遗传参数进行分析.结果表明,组合及10个性状的一般配合力和特殊配合力方差均达显著或极显著水平.穗粗、穗行数、千粒重3个性状的狭义遗传力超过了80%,可以在早代选择,而单株产量、行粒数、穗长的狭义遗传力较低,受环境影响大,不利于早代选择;对亲本间的GCA效应和杂交组合间的SCA效应分析表明,自交系L103在降低株高、穗位高,提高结实性,增加穗行数、提高出籽率等性状上优于吉853,自交系L102-2在降低株高、穗位高,提高结实性,增加穗长、穗行数、行粒数,提高产量和出籽率性状上优于4F1,是综合性状相对较好的玉米种质.  相似文献   

Collaboration between teacher educators and schools to enhance development     

May Britt Postholm 《欧洲师范教育杂志》2016,39(4):452-470

The article focuses on school-based development and how collaboration between teacher educators and leaders and teachers can promote development in teacher education, in school and in the collaboration site in school where both parties meet. The data were collected in Norway through qualitative interviews with groups of teachers and leaders at three schools, and with a group of teacher educators. With the Cultural Historical Activity Theory as the framework, central concepts within this theory have been key elements in the study. The findings reveal that collective collaborative learning is a positive form of enhancing the professional development of teachers and that both structure and culture should interact when fostering development in school. The study also shows that the development of teacher educators’ research competence can enhance development and learning both in teacher education and in school, and also improve the developmental transfer between these two arenas.  相似文献   

Creating Spaces for Collaboration in Community Co‐design     

Mirian Calvo  Madeleine Sclater 《The International Journal of Art & Design Education》2021,40(1):232-250

Urgent societal challenges have led to unease in our socio‐cultural interactions and the production systems that underpin our lives. To confront such challenges, collaboration stands out as an essential approach in accomplishing joint goals and producing new knowledge. It calls for interdisciplinary methodologies such as co‐design, an approach capable of bridging multiple expertise. The core activities of co‐design are based on the premise of collaboration and on developing creative social environments. Yet achieving collaboration through co‐design is challenging as people need to understand each other, and develop trust and rapport. We argue that ‘informal‐mutual learning’ is central to building mutual understanding. This article explores how we create spaces for collaboration through co‐design by examining the social environments supporting them. It examines the value of collaboration and its impact upon participants within an action research project conducted in Scotland. We identified Cultural‐Historical Activity Theory (CHAT) as a suitable theoretical framework. It offers support for holistic inquiry into participation and learning. Its strength was in the attention that it pays to multi‐dimensional human interactions within the social environment. This led to an understanding of the concepts of boundary‐crossing and boundary space examined through a CHAT lens. The findings shed light on four designerly conditions supporting informal‐mutual learning when engaged in collaboration during co‐design situations: choreography and orchestration, aesthetics, playfulness, and quality and quantity of participation. The findings enable us to elaborate on the theorisation of boundary space, a theoretical space for the assemblage of multiple levels of expertise to achieve collaboration.  相似文献   

无人机辅助城市路口行人过街交通特性调查与分析     

向怀坤  谭基  何汉驰 《深圳职业技术学院学报》2021,(1)

行人过街交通特性参数是开展“以人为本”交通管理与控制工作的基础数据.针对现有的行人过街交通特性参数调查方法在行人交通密度与运动空间调查中存在的局限性,文章提出基于低空多旋翼无人机(UAV)辅助城市路口行人过街交通特性参数调查方法,利用无人机航拍视频图像,采用人工交互作业模式可以快速地提取路口行人过街速度、行人交通密度与运动空间等参数。以深圳市10个典型灯控路口为例进行测试,结果表明该方法具备可行性,统计获得深圳市灯控路口行人过街平均步速为1.52 m/s,略高于哈尔滨、北京、长春等城市的同类统计结果.  相似文献