共查询到20条相似文献，搜索用时 15 毫秒
1.
L.Vaughn Blankenship 《Research Policy》1974,3(3):244-257
Philosophy of science, as understood by most social scientists, has given us an image of the scientific enterprise as a large hypothesis testing machine. One key unit within this enterprise is the individual scientist. He has learned or intuitively understands a set of logical rules which he brings to bear in ordering his thinking about a problem. Since he was pictured as operating within an unconstrained environment in an organizationally and morally simplistic world, his goal (scientific ‘truth’) was unambiguous, the organization and conduct of his work frictionless, and his only concerns were logic and measurements. Management and politics had no relationship to his pursuit of truth or the possibility of uncovering it. The other key unit, the scientific community, was equally autonomous from the world of management and politics. It was a social system in which problem definitions and decisions on truth are the joint result of open interaction among autonomous, rational, driven men and the impersonal automatic, application of the rules of evidence and logic.What guaranteed that this marvellous hypothesis testing machine actually operated in this fashion? The character and socialization of the individual scientist and the fact that interference in or imperfections of the process will result in erroneous truths which will eventually catch up with the perpetrators and punish them through individual, system, or societal failure, as in the inexorable workings of the market place of classical economics.If this was ever a very accurate picture of the scientific enterprise, the emergence of ‘Big Science’ has placed its adequacy seriously in doubt. ‘Big Science’ involves a research system in which (a) a consciously articulated goal exists; (b) there has been a commitment of resources and the organization and coordination of skills and institutions on a scale which only national governments can undertake; (c) the decentralized structures of the scientific community are replaced by planned administrative structures; and (d) it is rare that research problems or goals correspond to the neat disciplinary boundaries within science.Recognition of these developments in the scientific community is uneven and the reaction to them ambivalent and the philosophy and sociology of science have yet to come fully to terms with them. 相似文献
2.
Mark Deuze 《The Information Society》2013,29(2):63-75
Within media theory the worldwide shift from a 19th-century print culture via a 20th-century electronic culture to a 21st-century digital culture is well documented. In this essay the emergence of a digital culture as amplified and accelerated by the popularity of networked computers, multiple-user software, and Internet is investigated in terms of its principal components. A digital culture as an underdetermined praxis is conceptualized as consisting of participation, remediation, and bricolage. Using the literature on presumably “typical” Internet phenomena such as the worldwide proliferation of independent media centers (indymedia) linked with (radical) online journalism practices and the popularity of (individual and group) weblogging, the various meanings and implications of this particular understanding of digital culture are explored. In the context of this essay, digital culture can be seen as an emerging set of values, practices, and expectations regarding the way people (should) act and interact within the contemporary network society. This digital culture has emergent properties with roots in both online and offline phenomena, with links to trends and developments predating the World Wide Web, yet having an immediate impact and particularly changing the ways in which we use and give meaning to living in an increasingly interconnected, always on(line) environment. 相似文献
3.
Participation, Remediation, Bricolage: Considering Principal Components of a Digital Culture 总被引：1，自引：0，他引：1
Mark Deuze 《The Information Society》2006,22(2):63-75
Within media theory the worldwide shift from a 19th-century print culture via a 20th-century electronic culture to a 21st-century digital culture is well documented. In this essay the emergence of a digital culture as amplified and accelerated by the popularity of networked computers, multiple-user software, and Internet is investigated in terms of its principal components. A digital culture as an underdetermined praxis is conceptualized as consisting of participation, remediation, and bricolage. Using the literature on presumably “typical” Internet phenomena such as the worldwide proliferation of independent media centers (indymedia) linked with (radical) online journalism practices and the popularity of (individual and group) weblogging, the various meanings and implications of this particular understanding of digital culture are explored. In the context of this essay, digital culture can be seen as an emerging set of values, practices, and expectations regarding the way people (should) act and interact within the contemporary network society. This digital culture has emergent properties with roots in both online and offline phenomena, with links to trends and developments predating the World Wide Web, yet having an immediate impact and particularly changing the ways in which we use and give meaning to living in an increasingly interconnected, always on(line) environment. 相似文献
4.
5.
《普罗米修斯》2012,30(3):247-253
This article explores how ordinary people used telephone technology during the September 11, 2001 terrorist attacks on the USA. Personal emergency communication is heavily imbued with emotional meaning. These messages address major life problems and values, such as leaving final messages and expressing love and concern, sometimes requiring extreme efforts. They also show that formal technical characteristics of media, and boundaries across media, are not particularly salient to people who have pressing personal and social communication needs. 相似文献
6.
Antonio Mauricio F.L. Miranda de S Danton D. Ferreira Edson W. Dias Eduardo M.A.M. Mendes Leonardo B. Felix 《Journal of The Franklin Institute》2009,346(9):841-853
The present work deals with recent results on the sampling distribution of the magnitude-squared coherence (also called just coherence) estimate between a random (Gaussian) and a periodic signal, in order to obtain analytical critical values, alternative expressions for the probability density function (PDF) as well as the variance and bias of the estimate. A comparison with the more general case of coherence estimation when both signals are Gaussian was also provided. The results indicate that the smaller the true coherence (TC) values the closer both distributions become. The behaviour of variance and bias as a function of the number of data segments and the TC is similar for both coherence estimates. Additionally, the effect of a normalizing function (Fisher's z transform) in the coherence estimated between a random and a periodic signal was also evaluated and normality has been nearly achieved. However, the variance was less equalized in comparison with coherence estimate between two Gaussian signals. 相似文献
7.
Potts M 《Endeavour》2003,27(3):127-130
In Japan, it took over 30 years to register the contraceptive Pill, but it took only six months to approve Viagra. The Pill was developed in an academic institution and no large pharmaceutical manufacturer wished to market it. Viagra was developed inside a big company and actively promoted. In the USA, the Pill was almost removed from the market because of widely publicized reports of deaths, but mortalities associated with Viagra do not make the headlines. Viagra has been promoted by the famous, whilst those who use the Pill do not appear in advertisements. Even theologians have treated these two drugs according to different standards. It is suggested that this asymmetry is not accidental, but is an expression of a deep-seated dual standard that is ultimately driven by biosocial differences in male and female power, and reproductive agendas rooted in human evolution. 相似文献
8.
Suoyi Tan Shengjie Lai Fan Fang Ziqiang Cao Bin Sai Bing Song Bitao Dai Shuhui Guo Chuchu Liu Mengsi Cai Tong Wang Mengning Wang Jiaxu Li Saran Chen Shuo Qin Jessica R Floyd Zhidong Cao Jing Tan Xin Sun Tao Zhou Wei Zhang Andrew J Tatem Petter Holme Xiaohong Chen Xin Lu 《国家科学评论(英文版)》2021,8(11)
2020 was an unprecedented year, with rapid and drastic changes in human mobility due to the COVID-19 pandemic. To understand the variation in commuting patterns among the Chinese population across stable and unstable periods, we used nationwide mobility data from 318 million mobile phone users in China to examine the extreme fluctuations of population movements in 2020, ranging from the Lunar New Year travel season (chunyun), to the exceptional calm of COVID-19 lockdown, and then to the recovery period. We observed that cross-city movements, which increased substantially in chunyun and then dropped sharply during the lockdown, are primarily dependent on travel distance and the socio-economic development of cities. Following the Lunar New Year holiday, national mobility remained low until mid-February, and COVID-19 interventions delayed more than 72.89 million people returning to large cities. Mobility network analysis revealed clusters of highly connected cities, conforming to the social-economic division of urban agglomerations in China. While the mass migration back to large cities was delayed, smaller cities connected more densely to form new clusters. During the recovery period after travel restrictions were lifted, the netflows of over 55% city pairs reversed in direction compared to before the lockdown. These findings offer the most comprehensive picture of Chinese mobility at fine resolution across various scenarios in China and are of critical importance for decision making regarding future public-health-emergency response, transportation planning and regional economic development, among others. 相似文献
9.
10.
Artificial intelligence (AI) will transform business practices and industries and has the potential to address major societal problems, including sustainability. Degradation of the natural environment and the climate crisis are exceedingly complex phenomena requiring the most advanced and innovative solutions. Aiming to spur groundbreaking research and practical solutions of AI for environmental sustainability, we argue that AI can support the derivation of culturally appropriate organizational processes and individual practices to reduce the natural resource and energy intensity of human activities. The true value of AI will not be in how it enables society to reduce its energy, water, and land use intensities, but rather, at a higher level, how it facilitates and fosters environmental governance. A comprehensive review of the literature indicates that research regarding AI for sustainability is challenged by (1) overreliance on historical data in machine learning models, (2) uncertain human behavioral responses to AI-based interventions, (3) increased cybersecurity risks, (4) adverse impacts of AI applications, and (5) difficulties in measuring effects of intervention strategies. The review indicates that future studies of AI for sustainability should incorporate (1) multilevel views, (2) systems dynamics approaches, (3) design thinking, (4) psychological and sociological considerations, and (5) economic value considerations to show how AI can deliver immediate solutions without introducing long-term threats to environmental sustainability. 相似文献
11.
12.
13.
14.
15.
摘要：模块化组织内部不仅存在主导模块与成员模块间的沟通与协调关系,还存在成员模块之间的要素流动与协同关系。成员模块之间通过业务交易、信息共享、知识交流、能力互补、平台整合等方式实现各方的合作,本文基于此构建了成员模块之间合作模式的Brick模型。进一步地,识别了界面关联的成员模块间的能力与知识的作用的四种关联方式--匹配、渗透、融合和寄生,并相应厘清了对偶界面、嵌入界面、共生界面、涌现界面等四种界面形式,以及各自的作用机理。在MISP的作用下,模块化组织关联界面效力机制设计有赖于：在基础层面上进行关系网络的构建,在核心层面上加强关系租金的创造。 相似文献
16.
Composite diversity among team members is one of the noteworthy but neglected issues for its contingent effect on knowledge management processes. This paper presents that these often contingent and sometimes bipolar effects of composite diversity occur in their relationship with knowledge sharing, which is one critical element for knowledge management. Nevertheless, we argue that this contingency does not stem from the diversity per se, but from the social-cognitive state (i.e. social capital) that moderates in this diversity-sharing relationship. In addition to the conceptual deductions, we conducted a series of semi-structured interviews in a real-life group setting as a preliminary endorsement for our theoretical exploration; this effort serves as a setout in assisting the illustrative conceptual deductions but not an attempt to be one large-scaled empirical piece of testing that should consider the generalizability more seriously. Implications for group practices and group dynamics in knowledge-sharing imperatives are discussed finally. 相似文献
17.
18.
19.
20.
Linda Schamber Michael B. Eisenberg Michael S. Nilan 《Information processing & management》1990,26(6)
Although relevance judgments are fundamental to the design and evaluation of all information retrieval systems, information scientists have not reached a consensus in defining the central concept of relevance. In this paper we ask two questions: What is the meaning of relevance? and What role does relevance play in information behavior? We attempt to address these questions by reviewing literature over the last 30 years that presents various views of relevance as topical, user-oriented, multidimensional, cognitive, and dynamic. We then discuss traditional assumptions on which most research in the field has been based and begin building a case for an approach to the problem of definition based on alternative assumptions. The dynamic, situational approach we suggest views the user — regardless of system — as the central and active determinant of the dimensions of relevance. We believe that relevance is a multidimensional concept; that it is dependent on both internal (cognitive) and external (situational) factors; that it is based on a dynamic human judgment process; and that it is a complex but systematic and measurable phenomenon. 相似文献