Of Frogs & Rhetoric: The Atrazine Wars     

Carol Reeves 《Technical Communication Quarterly》2015,24(4):328-348

In a scientific dispute over the effects of atrazine on amphibians, chemical industry–funded and publically funded scientists present stunningly contrasting constructions of atrazine's environmental concentrations, persistence, and potential to harm. Considerable scientific uncertainties and variable ranges allow authors to construct preferred versions of the story of atrazine. These incommensurate rhetorical constructions, more the result of competing economic and environmental interests than of any paradigmatic misalignments, have prolonged the dispute not only over atrazine's effects but also over whether its sales should be banned.  相似文献   

我国体育用品制造业国际转移的趋势及动力机制——基于全球生产网络视角     

朱华友  李涵  戴艳 《武汉体育学院学报》2019,53(8):44-49

我国体育用品制造业国际转移呈现出网络化、多元化、集群化、主动化的新趋势，其动力来源有三点，一是寻求我国体育用品制造业价值链的重构，二是试图跨越后发国家可能面临的价值链固化的"网络陷阱"，三是追逐包括竞争优势和网络权力等隐形收益在内的综合利益最大化。但是，这种自觉行动和主动作为可能受到价值链上端发达国家的阻击。因此，我国体育用品制造业要利用研发设计和品牌营销价值链的发育突破门限效应，积极开展跨境并购和逆向投资活动弥补比较劣势，并逐步回归到研发本土化，利用国内中小体育用品企业构建由自己主导的价值链，以全球布局应对潜在的贸易风险。  相似文献   

民族传统体育文化认同及其发展的思考          下载免费PDF全文

王俊鹏 《河北体育学院学报》2017,31(5):82-85

对民族传统体育文化的认同意识是中华民族文明得以传承和发展的重要内容之一.运用文献资料法、逻辑分析法对民族传统体育文化的认同问题进行研究,指出传承环境和文化价值观念的改变、相关法律政策与广大民众的疏离,传播的局限性和封闭性是民族传统体育文化认同意识淡化的原因.在此基础上提出,保护和改善民族地区自然和人文环境,唤醒民众的文化自觉意识,重铸民众的主体认同意识,探索多元化的宣传传播途径,旨在提高民众的文化认同意识,促进民族传统体育文化的传承发展与中华文化的复兴.  相似文献   

VTS模拟器情景对话智能评估系统     

冀宝仙  王胜正  施朝健  孙振 《上海海事大学学报》2017,38(4):16-20

为实现VTS值班人员适任能力培训和评估的自动化、智能化,确保评估结果客观、公正和合理,构建VTS模拟器情景对话的智能评估系统。该系统通过建立标准航海通信用语语料库提高在线语音识别系统的精确性。引入基于语法规则的匹配分析模型对由语音识别系统得到的文本字符串进行匹配分析。详细介绍基于加权的实操评估准则制定方法。该系统利用智能技术能实现部分VTS情景对话的自动化评估,减轻评估人员的负担,且能避免人工评估的主观性和不公平性。  相似文献   

Relationship Understanding Between Emotional Stability,Self-Disclosure and Social Adjustment     

Nagendra Singh Nehra  Santosh Rangnekar 《Journal of Intercultural Communication Research》2017,46(6):558-578

This paper discusses a survey, carried out by the authors, of 211 employees’ employed in public and private manufacturing organizations in North India to determine if emotional stability acts as a mediator between self-disclosure and social adjustment. Capitalization theory has been used as theoretical framework to examine the proposed relationships. Results indicate that high self-disclosure has positive association with social adjustment. Results also suggest that emotional stability partially mediates self-disclosure and social adjustment relationship. Implications for future research include further examination through additional mediators and other dimensions of self-disclosure from capitalization theory in understudied non-U.S. cultures like India.  相似文献   

无约束优化问题的修正WYL共轭梯度法及其收敛性质     

黄海 《南宁师范高等专科学校学报》2013,(3)

在相关文献的基础上，提出无约束优化问题的修正WYL共轭梯度法，该方法不依赖于任何线搜索而满足充分下降性，证明了采用Arimijo型线搜索算法的全局收敛性，及在适当条件下算法具有R-线收敛速率，证明了采用重开始策略时算法具有n步二次收敛性。  相似文献   

Global convergence or national variation? Examining national patterns of classroom instructional practices     

Yoonjeon Kim 《Globalisation, Societies & Education》2019,17(3):353-377

The world culture framework posits a convergence in the organisation of education across the world. On the other hand, scholars observing teaching practices inside classrooms find significant variation among nations and regions of the world. This study examined the global change patterns of classroom practices at the between- and within-country levels, drawing on teacher reports from the Trends in Mathematics and Science Study. Results indicate clear between-country convergence toward more student-centred and conceptual instruction. But a nation’s degree of conformity or resistance to this model was contingent upon other nation-specific factors, including centralised curriculum control or world regional location.  相似文献   

0-6岁儿童非言语交流发展的初步研究   总被引：2，自引：0，他引：2  

江敏红 《中国特殊教育》2004,(5):79-84

本研究通过分析 3 0名 0 -6岁正常儿童 (1 1个年龄组 )在自然场景中交流活动的录像资料 ,探索了 0 -6岁儿童非言语交流发展的规律。研究发现 (1 ) 0 -6岁儿童非言语交流的发展可以分为 3个阶段。 2岁以前 (包括 2岁 ) :儿童已经形成并掌握了基本的交流技能 ;2 -4.5岁左右 ,儿童运用非言语交流方式表达的交流功能渐趋丰富 ;4.5 -6岁 ,儿童运用各种非言语交流方式表达的人际交流功能减少 ,保留回应和给予讯息两项基本功能 ;(2 )儿童表达提问讯息和拒绝的非言语交流可能与口语发展有关。  相似文献   

A network under stress: using embeddedness to understand uncertainty management and resilience in campus emergencies     

Jessica L. Ford  Jacob S. Ford  Seth S. Frei  Andrew Pilny  Brenda L. Berkelaar 《Journal of Applied Communication Research》2016,44(3):316-335

Persistent school shootings have generated ongoing pressure to assess and enhance crisis communication effectiveness via strategies such as resilience-building and post-crisis restoration. A network perspective offers a robust, multilevel approach for examining complex information flows among community, campus, and individual actors affected by crises. Drawing on relational and structural embeddedness and Uncertainty Management Theory, we offer nine propositions that help explain structural and relational changes in a network over time. Although theoretically driven, these propositions are primarily functional, offering practical implications for safety officials and administrators trying to understand, prepare for, and respond to crises. Thus, we suggest measures and recommendations to improve information flow, uncertainty management, and resilience before, during, and after a crisis.  相似文献   

通信工程实验室的构建   总被引：3，自引：0，他引：3  

付洪威  杨华  刘云 《实验技术与管理》2006,23(11):140-142

通过通信工程实验室的构建,提出了以实验箱为主体,计算机网络设备为载体,同时构建以数字程控交换机和网络交换机为核心的程控交换系统方案,该方案不仅可以实现固定电话信号的传输,而且能够支持无线通信,更好地满足通信专业的本科教学和学科建设。  相似文献