浅谈怎样上好植物课     

孙伟华  包雪英  邢路军 《承德职业学院学报》2002,7(1):10-12

认真备课是上好每节课的前提,调动学生学习积极性是上好课的手段;培养学生的观察能力是教学质量的保证;依据教学反馈信息自我检查教学效果是提高教学水平的一种方法。  相似文献   

AIS数据对两船会遇中自动避碰决策的影响初探     

陶源 《上海海事大学学报》2002,23(3):27-31

通过分析AIS技术所提供的他船数据的性能和作用 ,提出了解决长期困扰自动避碰决策技术发展的两个问题 (即他船信息来源的可靠性问题和船舶间航行、避碰意图互相通报的问题 )的办法。还提出了将AIS作为自动避碰决策系统的他船数据信息来源的设想 ,并分析了这种设想的可行性。介绍了在AIS数据的支持下 ,上述困扰自动避碰决策技术研究多年的两个问题得到解决的情况 ;分析了AIS数据中的新信息 ,例如他船状态信息 (操限船、失控船、限于吃水船等 )和他船避碰意图发现的新方法 (实时监控他船动向 )等AIS优于ARPA的数据功能对于自动避碰决策的作用 ,并研究了其应用方法  相似文献   

研究生学术搜索中的信息规避行为与成因研究     

金燕  刘琦  毕崇武 《图书情报工作》2022,66(18):84-94

[目的/意义]探索研究生学术搜索中的信息规避行为及成因,为改善信息规避消极影响、提升学术搜索效果提供依据。[方法/过程]首先利用任务式搜索实验获取搜索行为数据;其次通过访谈、扎根理论编码析出各搜索环节的信息规避行为及其影响因素;然后结合实验和访谈归纳出信息规避行为引发的搜索模式及搜索路径;最后依据SOR理论构建不同搜索模式下的信息规避模型,并结合问卷调研分析各搜索环节的信息规避成因。[结果/结论]研究生学术搜索中的信息规避行为受任务、信息、环境、资本因素外部刺激,受心理因素内部驱动,受能力因素调节控制;信息规避行为引发了直线式和螺旋式 2种搜索模式,在心理因素的反作用下,螺旋式搜索模式是对直线式搜索模式下信息规避行为负面影响的主观矫正;信息规避行为有积极和消极之分,需要引导消极信息规避行为,减少其带来的不利影响。  相似文献   

用户查询信息障碍分析及对策初探   总被引：1，自引：0，他引：1  

张影 《晋图学刊》2006,(2):28-29,55

知识经济时代的到来、网络技术的普及、信息环境的演变,使得人们对知识、信息的需求与消费成为新的消费热潮。然而,用户在查询信息方面的障碍却依然存在,且有了新的变化。本文客观分析了障碍,并从解决方法上提出了自己的观点。  相似文献   

利用短信群发系统实现图书馆的移动服务   总被引：7，自引：0，他引：7  

于清丽 《现代图书情报技术》2005,21(7):89-91

从短信群发系统的基本原理入手，探讨了利用短信群发系统实现图书馆移动服务的可行性及优势，并构建了一个低成本短信群发系统的模型。  相似文献   

构建图书馆的手机短消息服务平台   总被引：11，自引：0，他引：11  

宋爱林  施晓雨  周爱民 《新世纪图书馆》2005,(1):52-54

论文以作者所在的图书馆实际开发的手机短消息平台为参照，分析手机短消息服务在图书馆的应用优势，阐述应用手机短消息平台构建图书馆咨询服务新模式的方法，探讨短消息服务的运作与实现。  相似文献   

Mapping the educational experiences of children with pathological demand avoidance     

Emma Gore Langton  Norah Frederickson 《Journal of Research in Special Educational Needs》2016,16(4):254-263

‘Pathological demand avoidance’ (PDA) describes a pattern of difficulties increasingly recognised as forming part of the autistic spectrum. Although clinical reports suggest that children with PDA are likely to experience considerable difficulties in education, their educational experiences have not yet been explored in any systematic way. In the current study, 42 parents of children with PDA completed a questionnaire about their child's educational experiences. Parents' responses indicated that this group of children displays high levels of problem behaviours in school, and receives corresponding high levels of special educational need support and professional involvement. Despite this support, the group had experienced high rates of exclusion and placement breakdown, with only 48% now in mainstream education. Parents reported relatively high satisfaction in their children's educational placements, with success defined by parents in terms of child outcomes, school characteristics and PDA‐specific factors. Findings are discussed with reference to what is known about the educational experiences of children with more typical autism spectrum conditions and in terms of the implications for the inclusion of this group of children with complex needs.  相似文献   

常用数值并行算法的研究与应用     

李戈  崔会军 《河北旅游职业学院学报》2016,(2):86-88

本文详细的介绍了MPI并行程序编程实现和设计方法，针对常用数值进行并行运算求解，主要是解决了如何用布尔积求幂矩阵判断各顶点之间是否可达，同时推算出经过多少（个顶点）条边才能到达这两个问题。最后对并行程序进行测试分析，并总结了本论文所做的工作中的经验与不足，并指出需要继续研究的问题。  相似文献   

Trait Affection Given and Received: A Test of Hofstede’s Theoretical Framework     

Daniel H. Mansson  Aldís G. Sigurðardóttir 《Journal of Intercultural Communication Research》2017,46(2):161-172

This study sought to address Hofstede and McCrae’s (2004) call for systematic cross-cultural comparisons of trait-like attributes. Specifically, we examined the extent to which Danish, Icelandic, Polish, and American adults’ trait affection given and trait affection received are (a) dependent on national origin, and (b) associated with Hofstede’s dimensions of cultures (i.e. individualism-collectivism, masculinity-femininity, power distance, and uncertainty avoidance). The participants (N = 606) completed a questionnaire in English that consisted of the trait affection given and trait affection received scales. Results of a multivariate analysis of variance and linear regression analyses revealed that people’s trait affection given and received are (a) dependent on national origin, and (b) associated with Hofstede’s dimensions of cultures.  相似文献   

‘The Winner Takes it All’: Values and Benefits of Israeli Sports Gambling Advertisements     

Osnat Roth-Cohen  Ilan Tamir 《国际体育史杂志》2017,34(7-8):639-655

Sports gambling is a well-established practice in Israel, whose beginnings can be traced to 1951. In recent years, the activities of the Israel Sports Betting Board (ISBB), also known as the ‘Toto Commission’, have become extremely popular with the public at large, and especially with sports fans. The study examines the changing advertising messages and creative appeals featured in the ISBB’s various advertising campaigns throughout Israeli history, and specifically the broad social meanings that can be inferred from these campaigns. The findings illustrate how significant structures of meaning in advertising function as reflections of the state of sports and society in Israel and as representations of some of the most salient phenomena in these domains. For example, for many years advertisements have been dominated by male presence, reflected primarily in the featured characters and language representations. Also prominent are representations of militarism as well as global biases, which are illustrated by the use of English in the local Israeli gambling brand name (‘Winner’), for example.  相似文献