湍流大气激光束扩展效应的研究     

谭启培  黄兴  谭冠龙  艾勇 《五邑大学学报(社会科学版)》1990,(Z1)

本文讨论了激光扩展的机制问题,给出了短期和长期扩展光斑半径ps和PL的均方值的近似计算方法,提供了一套测量短期扩展效应的技术,进行了在静态空气、湍流空气和暖风场下光束扩展的测量,所得结果与理论值比较吻合,光束扩展谱的统计分布近似于正态分布。  相似文献   

Connecting Interpersonal and Mass Communication: Science News Exposure,Perceived Ability to Understand Science,and Conversation     

《Communication monographs》2012,79(3):334-350

We present experimental data (n?=?667) supporting three hypotheses that link science news, perceptions about science, and talk with other people. Regular television news viewers were recruited from a midsize Designated Market Area using random digit dialing, and were randomly assigned to one of three science news exposure conditions. As hypothesized, science television news exposure appears to boost perceived ability to understand science. We also find that perceived ability to understand science, in turn, predicts conversations about science. We note connections to literature on the role of talk in mass communication effects and encourage future work in this vein.  相似文献   

Considering organizations as a unique interpersonal context for deception detection: A meta‐analytic review     

Marifran Mattson  Mike Allen  Daniel J. Ryan  Vernon Miller 《Communication Research Reports》2013,30(2):148-160

This article challenges current interpersonal deception literature by summarizing seven studies that examined the ability of members to detect deception in the context of organizational processes. The combined effect (r = .472) indicated that organizational members are able to differentiate honest from dishonest communicators. According to the Binomial Effect Size Display, observers correctly classified honest or dishonest communication in approximately three of four circumstances (73.6%). This finding is important for situations such as employment interviews or other circumstances when organizational members or constituents need to assess the accuracy of information provided by current or potential members. The theoretical implications for interpersonal and organizational deception research are discussed along with the practical ramifications of this study for employment interviewing, manager/employee communication, and retail sales.  相似文献   

“Kind,Sensitive, and Above All,Honest”: Long-Term Cancer Survivors’ Quality of Life and Self-Advocacy     

Kristian G. E. Borofka  Justin P. Boren 《Communication Research Reports》2013,30(4):373-378

ABSTRACT

Long-term survivors of cancer (LTS) are a growing population whose needs differ significantly from patients undergoing cancer treatment. Many LTS suffer from late effects of cancer treatments or symptoms that persist after treatment concludes or appear following remission. This study explored the relationship between LTS perceptions of quality of life with late effects and perceptions of patient self-advocacy through quantitative and qualitative analyses. A negative statistical relationship emerged between the variables. LTS median self-advocacy scores were quite high, reflecting their preference for health-care providers who listen actively, understand patient needs, are knowledgeable and compassionate, and utilize joint decision making.  相似文献   

Conversations among Coal Miners in a Campaign to Promote Hearing Protection     

Michael T. Stephenson  Brian L. Quick  Kim Witte  Charles Vaught  Steve Booth-Butterfield  Dhaval Patel 《Journal of Applied Communication Research》2013,41(3):317-337

Although working in a coal mine can diminish one's hearing capabilities by 50%, not until 2000 did federal laws require companies to establish noise standards in order to help prevent hearing loss among their employees. Since then, researchers have worked with safety administrators to develop effective messages promoting hearing protection and testing. This research assessed the effects of campaign messages on discussing campaign postcards and talking with others about a helmet-sticker incentive. The results, which are discussed with a focus on future campaigns, indicate that hearing-related attitudes, intentions, and behaviors are the most influenced by messages that were affectively neutral and least influenced by messages that were affectively negative.  相似文献   

The Effects of Subjective Camera and Fanship on Viewers' Experience of Presence and Perception of Play in Sports Telecasts     

R. Glenn Cummins 《Journal of Applied Communication Research》2013,41(4):374-396

This study examines the use of subjective camera, and its impact on fans’ and nonfans’ experience of presence and subjective evaluations of play. In a mixed-measures experiment, high, moderate, and low sports fans viewed 16 plays from a college football game shown via either subjective or objective camera. The study found that plays viewed through the subjective camera elicited a significantly greater sense of spatial presence as well as presence as engagement. Presence also varied as a function of participants’ degree of fanship. Subjective evaluations of game play were also a function of sports fanship.  相似文献   

A Difference We Can Call Our Own     

Jake Harwood 《Journal of Applied Communication Research》2013,41(3):295-298

The article contends that communication scholars' most influential work is often not identifiably “communication” research. This phenomenon is a result of: (a) theory, which emphasizes message effects rather than message content, and (b) method, which has failed to provide valid, detailed, and shared methods for the quantitative examination of message content. It is suggested that a stronger focus on message content is required if communication is to maintain a disciplinary identity and a unique disciplinary contribution.  相似文献   

技术预见对政府科技治理的影响机制研究     

李慧泉  简兆权 《科技管理研究》2022,42(1):22-28

从技术预见的形成机制入手,深入分析技术预见的参与主体和理论基础,并从技术预见价值理念转变的视角分析技术预见的形成机制,从事先预防机制、政策制定工具、边际溢出效应等三个方面探讨技术预见对科技治理的影响机制,展现技术预见作为政策工具的价值性、创新性和指导性作用.最后从科技实际需求出发开展技术预见、重视科技人才的培养和引进、...  相似文献   

Communication Behaviors as Mediators: Examining Links Between Political Orientation,Political Communication,and Political Participation     

Yan Tian 《Communication quarterly》2013,61(3):380-394

This study reveals the mediation process of mass and interpersonal communication between antecedent political orientation variables and the outcome response variable of political participation. It provides insight into the direct and indirect effects of political communication on political behavior using an advanced social cognitive approach. The study explores the interrelations among political orientations, communication behaviors, and political participation using the theoretical framework of the Orientation 1–Stimulus–Orientation 2–Response model (Markus &; Zajonc, 1985 Markus , H. , &; Zajonc , R. B. ( 1985 ). The cognitive perspective in social psychology . In G. Lindzey &; E. Aronson (Eds.), The handbook of social psychology , (3rd ed. , pp. 137 – 229 ). New York , NY : Random House . [Google Scholar]; McLeod, Kosicki, &; McLeod, 2002 McLeod , J. M. , Kosicki , G. M. , &; McLeod , D. M. ( 2002 ). Resurveying the boundaries of political communication effects . In J. Bryant &; D. Zillman (Eds.), Media effects: Advances in theory and research , (2nd ed. , pp. 215 – 267 ). Mahwah , NJ : Lawrence Elbaum Associates, Inc . [Google Scholar]). A structural equation model was built and supported by 2004 American National Election Survey data. After controlling for demographic variables, both political interest and need for cognition had direct effects on political media use, whereas political interest and need to evaluate had direct effects on interpersonal political discussion. These results suggest that need for cognition and need to evaluate—2 important personality constructs—affect political communication on 2 different levels. Meanwhile, as antecedent orientation variables, political interest, political extremity, and need to evaluate all contribute to political participation. Both political media use and interpersonal discussion directly affect political participation while they also mediate the effect of the political orientation variables on political participation. Furthermore, interpersonal political discussion mediates the effect of political media use on political participation, and political media use mediates the effect of political interest and need for cognition on interpersonal political discussion.  相似文献   

论项目的社会目标与项目社会影响评估   总被引：1，自引：0，他引：1  

戚安邦  熊琴琴 《未来与发展》2009,30(6):8-11

项目社会影响评估是一个非常重要的项目评估内容,然而我国现有的项目社会影响评估内容和方法存在一些问题。本文通过研究提出应该根据社会发展的基本目标来开展项目社会影响评估。从而充分评估项目对社会目标所产生的影响。具体而言,在项目的社会影响评估中应该引入项目的社会公平、社会效率、社会可持续发展评估以及项目公平与效率的集成评估等方面的评估内容。  相似文献