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探讨将生存分析应用至专利维持研究的适用性和有效性。运用生存分析中的生存函数和cox分层回归模型,针对中国1985-2009年间信息技术领域发明专利数据,确定领域专利维持时间分布、比较不同国别申请人维持状况,并量化影响专利维持的风险因素。研究发现:信息技术领域专利的中位生存期约为10.5年,仅有接近1%的专利维持到届满;美国申请人专利维持情况最好,中国申请人的维持时长总体偏低,但有部分专利始终能够得到市场的认可;申请授权时间、发明人数量、申请人数量、申请书页数对专利维持的影响依次降低。 相似文献
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信息技术的迅猛发展对国民经济的发展具有巨大推进作用,因此,对信息技术的接受行为研究一直是信息系统研究领域的重要议题。技术接受模型是解释和预测人们对信息技术接受程度的基础理论中最为著名、成果也最为丰富的模型。文章对技术接受模型的形成和发展进行简述,重点阐述技术接受模型研究过程中形成的两类研究模式:"TAM++"研究模式和整合模型研究模式,最后结合各学者对技术接受模型研究的观点,得出了信息技术接受行为研究过程中存在的问题及今后的研究方向。 相似文献
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The model of intuitive morality and exemplars is an organizational framework that was created to incorporate theories of basic human motivations with both micro- and macrolevel media research. Thus far, literature has integrated a framework of basic moral intuitions (here labeled altruistic motivations) with the model but has yet to integrate a framework of basic egoistic motivations. The current study integrates frameworks for both altruistic and egoistic motivations with the model in order to examine depictions of motivational incongruities (e.g., moral dilemmas) in television content for young audiences. Findings suggest that the frequency of depicted motivational incongruities increases as audience target-age increases. In addition, findings show that most motivational incongruities involve both egoistic motives versus altruistic ones, rather than just egoistic or altruistic motives alone. Discussion centers on implications for research on media and morality as well as entertainment theory. 相似文献
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Scott A. Myers Maria Brann Christine E. Rittenour 《Communication Research Reports》2013,30(2):155-167
The purpose of this study was to examine whether early and middle adulthood siblings' use of relational maintenance behaviors (i.e., positivity, openness, assurances, networks, tasks) is predicted, after controlling for relational closeness, by their interpersonal communication motives (i.e., affection, inclusion, control, pleasure, relaxation, escape). Participants were 122 individuals who reported on their relationship with a sibling. Results indicated that for the positivity relational maintenance behavior, psychological closeness, the affection motive, and the control motive were significant contributors; for the openness, assurances, and tasks relational maintenance behaviors, psychological closeness and the affection motive were significant contributors; and for the networks relational maintenance behavior, psychological closeness was a significant contributor. 相似文献
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Hyunjin Kang Jeong Kyu Lee Kyung Han You Seoyeon Lee 《Mass Communication and Society》2013,16(4):533-556
With the rapid development of interactive communication technology, the Internet is a major source of news and also plays an important role in connecting individual members of society. However, Internet users may have different perspectives on whether the Internet positively functions as a medium for public deliberation. Based on the assumption that being exposed to information on public affairs is a crucial step for one's civic engagement, this study explores how individuals’ motives related to news consumption, elaborative online news reading, and online news sharing influence their perceptions of online deliberation using structural equation modeling method (N = 998). The study finds significant relationships between news consumption motives and elaborative news reading and sharing behaviors, but only elaborative reading behavior had a significant effect on one's perceptions of online deliberation. The implications of these findings are discussed. 相似文献
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[目的/意义] 厘清政府开放数据公众初始接受行为影响因素层级关系，有助于提高政府开放数据公众接受度与使用效率，为我国政府开放数据相关政策的制定与完善提供理论支持。[方法/过程] 基于情境理论和专家调查法提炼出影响政府开放数据公众初始接受行为的13个因素，利用解释结构模型辅助建模，构建政府开放数据公众初始接受行为影响因素的关系结构模型。[结果/结论] 结果显示，政府开放数据公众初始接受行为影响因素的关系结构模型包含5个层级，可划分为3个层次：表象层、中间层与根本原因层。表象层包括系统资源、任务紧急程度与平台操作；中间层包括需求明确程度、任务主题、信息意识、信息知识、信息能力；根本原因层包括文化程度、年龄、政策法规、社会影响与平台设计。 相似文献
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Roland Izuagbe Nurudeen Ademola Ibrahim Lilofa Osamienfa Ogiamien Olajumoke Rebecca Olawoyin Nwanne Mary Nwokeoma Promise Ifeoma Ilo Odaro Osayande 《Library & information science research》2019,41(3):100969
Despite the widespread application of technology in the 21st century, making informed decisions regarding its acceptance in organisations is a function of several factors, particularly in developing countries, due to factors such as rising cost of the information technology infrastructure and low technological exposure. A model that incorporated perceived ease of use (PEOU) and e-Skills to examine librarians' intention for actual library technology acceptance was tested. The correlational research design, along with a multistage sampling procedure, was applied to select samples to reduce the sample to a manageable proportion. Professional librarians and library officers in four university libraries provided the data for the study. Results showed that e-Skill is the model's strongest determinant of technology acceptance intention among librarians. Also, PEOU will significantly moderate librarians' intention towards library technology acceptance when e-Skills are insufficient. From these outcomes, the understanding of the determinants of behavioural intention captured in the Technology Acceptance Model (TAM) and the Unified Theory of Acceptance and Use of Technology (UTAT) is extended and refined. 相似文献
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文章基于计划行为理论和技术接受模型,结合科研数据重用的具体情境,构建了一个用于理解和解释科研人员数据重用意愿的影响因素及其关系的理论模型。利用结构方程模型对回收的有效问卷进行分析,结果表明,科研人员的数据重用意愿直接受到数据重用的主观规范,对数据重用的态度以及数据质量的影响。 相似文献
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Narissra Maria Punyanunt-Carter 《Communication Research Reports》2013,30(4):311-318
The objective of this study was to investigate communication motives using attachment theory in father–daughter relationships. Two hundred and seven father–daughter dyads participated in the study. Results revealed that attachment styles were similar for all communication motives, except for the motive of escape. Dyads with secure attachment styles were more likely than anxious/ambivalent attachment styles to communicate for escape. Results also indicated that attachment styles did not influence fathers' communication motives. In other words, fathers communicated with their daughters regardless of how daughters' attach themselves to their fathers. These findings contribute to the understanding of the relationship between attachment styles and communication motives in father–daughter interpersonal relationships. 相似文献
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《Communication monographs》2012,79(1):52-66
The goal of the present study was to examine the patterns of relationships between routine and strategic maintenance enactment. Data were collected from 189 individuals in a romantic relationship. Results indicated that positivity and sharing tasks were more often performed routinely than strategically. Second, moderate to strong, positive correlations were found among the strategic use of maintenance behaviors, and also moderate to strong, positive correlations among the routine use of maintenance behaviors. However, virtually no relationships emerged between the routine and strategic use of maintenance. Next, both strategic and routine maintenance efforts were important in predicting satisfaction and commitment, but routine maintenance was slightly more important in predicting both satisfaction and commitment. Finally, three significant, positive correlations were found between the length of the relationship and routine maintenance performance (network, conflict management, and sharing tasks), and one significant, negative correlation was found between the length of the relationship and the strategic use of openness. 相似文献
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[目的/意义]移动图书馆信息接受情境粘滞是阻碍信息接受的活跃性因素。降低信息接受情境粘滞度,增强移动图书馆信息接受的"场景-行为-情境"适配功效,是提升移动图书馆场景服务能力、实现移动图书馆服务创新的关键。[方法/过程]通过探索移动图书馆信息接受情境粘滞的形成动因,运用情境适配理论和阻滞增长模型理论,构建移动图书馆信息接受情境粘滞模型;运用Matlab动态模拟移动图书信息接受的场景要素、情境要素和适配要素对移动图书馆信息接受情境粘滞的影响。[结果/结论]实验结果显示：移动图书馆信息接受情境粘滞在不同的阶段呈现不同的特征,粘滞度过小会使移动图书馆信息接受情境对移动服务场景产生剧烈的震荡作用,粘滞度过大则会使移动图书馆信息接受场景过分依赖于信息接受情境。 相似文献
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Carole A. Barbato Elizabeth E. Graham Elizabeth M. Perse 《Communication Research Reports》2013,30(1):48-57
This study explored the relationship between interpersonal communication motives and perceptions of humor use among elders. Elders (N = 143) ranging in age from 50 to 94 completed questionnaires assessing their interpersonal communication motives (ICM), perceived uses of humor (UHI), and demographics. The hypotheses predicting differential relationships among uses of humor and motives for communicating were supported. Elder men and women differed in their ICM and UHI. 相似文献
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Seth D. Weiss 《Communication Research Reports》2013,30(3):215-224
Instructional communication research has not specifically focused on the impact of student classroom communication behaviors on the student-teacher relationship. The current study investigated the relationship between student motives to communicate with instructors and interpersonal attraction toward them. Canonical correlation results indicated student levels of physical, social, and task attraction were positively related to their motivation to establish a relationship, and expressing interest in class and task attraction was inversely related to participatory, excuse-making, and sycophantic motives. Regression analyses determined students' relational motivations as the greatest predictor of social and physical attraction, while excuse-making was the greatest predictor of task attraction. 相似文献
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《Communication monographs》2012,79(1):82-97
Our analysis of Anglo American, Native American, and Hispanic adolescents confirms several predictions derived from a cognitive‐functional theory of television's socialization effects. The major predictions that learning and functionality evaluations of observed values lead to acceptance were supported for each of the three ethnic groups. As the theory predicts, adolescents accepted values observed in television when they recognized them (a measure of learning) and when they evaluated the values to be important in “being successful” in the United States (a measure of functionality). Perceived realism of television and total television exposure did not predict value acceptance. 相似文献
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This paper arises from a wider research project focussed on Portuguese gilded altarpieces and sculptures of the Baroque period, which also involved research into contemporary documents and into historical context, as well as into the history of use of materials and practices in gilding technology. It focuses on the results from analyses of historical samples and samples from archaeological reconstructions of gessoes and gilded surfaces. Analytical and experimental research shed light on diverse aspects of the technology of gilding grounds, such as range and composition of materials within historical objects, methods of production of gilding materials, gilding practices, actual performance of materials and gilded surfaces, and the science underlying the artists’ empirical choice of materials and practices. The documentary research (discussed in Part 1) elucidated the analytical and experimental research presented here, and vice-versa, resulting in a richer and more balanced understanding of the gessoes and of the motives of the people involved in their production. It is hoped that the results will inform future technological studies and conservation decisions. 相似文献
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Assessing citizen adoption of e-Government initiatives in Gambia: A validation of the technology acceptance model in information systems success 总被引：1，自引：0，他引：1
The technology acceptance model (TAM) has been used extensively to explain and predict users' acceptance of corporate information technology (IT). With the advancement in IT and the expanding popularity of internet applications in Gambia, e-Government has been a priority factor in rendering government services and in making information more accessible to citizens. This study shows how the TAM and e-Government initiatives would positively impact the Gambian government, despite the cultural differences within the country. This study developed a successful model of the Gambian e-Government system to assist Gambians with more efficient and cost-effective government operations. The study results reveal that the core constructs of the TAM have strong influences on user-intention towards e-Government products. This implies that the Gambian government can potentially utilize this study's TAM findings in other contextual settings to design and promote further implementation of e-Government systems. 相似文献
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Academic entitlement, a term used to reflect students' expectation for success regardless of personal effort, has become a growing issue at many universities. This study examined the relationship between college students' academic beliefs (i.e., academic entitlement, grade orientation, learner orientation, self-efficacy) and their motives for communicating with their instructor. Participants were 184 undergraduate students who completed a series of self-report scales. Students' level of academic entitlement was positively related to their grade orientation but negatively related to their self-efficacy. Results of a canonical correlation revealed that students who were learning oriented, but not grade oriented, and possessed self-efficacy communicated with their instructor for relational and participatory reasons. Students who were academically entitled and grade oriented communicated with their instructor for sycophantic reasons and to a lesser extent for participatory reasons but not for functional reasons. 相似文献
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移动互联网环境下发表评论意愿的影响因素研究——一个整合模型的视角 总被引：1，自引：0，他引：1