时滞脉冲双曲型泛函微分方程解的振动性

本文研究脉冲双曲型泛函微分方程解的振动性质,给出了解振动的充分条件.     

关于美国高校招收学生运动员管理制度的研究

全美高校竞枝体育联合会对招收和被招收人员在资格认可、代理权限、学历要求、接触范围以及接待规格方面都做了严格规定。从体育管理学的视角来视审，美国高校招收学生运动员的管理制度有许多有益的经验值得我国高校大学在招收和录取学生运动员时参考和借鉴。     

网络视频监控产品测试方案的改进设计

网络视频监控产品入网检测的关键在于采用的测试策略和测试方法。本文提出了验收该类产品的测试方案和测试策略，并以“守望精灵”网络视频监控平台为实例，对重要指标的测试用例进行了改进设计。实践证明改进后的方案具有较高的测试稳定性和较小的测试误差等优点。     

一类二阶泛函边值问题正解的存在性

讨论方程u″ h(t)f(u)=0在边界条件u'(0)=1乙0b(t)u'(t)dt,u(1)=t0乙0a(t)u(t)dt-1乙t0a(t)u(t)dt下正解的存在性,给出了该问题至少存在一个正解的存在性定理。     

馆藏特色数字资源众包对图书馆核心能力及组织边界的影响研究

文章以企业能力与组织边界相关研究成果为指导,结合目前已成功实施的部分图书馆众包案例,对馆藏特色数字资源的规划、建设与服务过程展开分析研究。文章认为馆藏特色数字资源众包不仅利于增强图书馆建设数字特藏的能力,也有利于提升馆员专业能力、提高用户满意度、提升图书馆知识服务与创新能力,进而增强图书馆核心能力,不断扩大组织边界。最后文章提出图书馆需重新审视功能定位,确保核心能力与竞争优势,真正服务于知识经济和现代信息社会的建设。     

国外IR理论研究与实践进展

分析国外学者在机构知识概念、特点与功能、服务模式以及技术探讨与图书馆员在IR管理中角色定位等方面的研究,综述IR建设面临的挑战,并介绍国外IR的发展概况,最后提出未来IR理论研究与实践中亟需解决的重点问题.     

Placing Facebook

Facebook is challenging professional journalism. These challenges were evident in three incidents from 2016: the allegation that Facebook privileged progressive-leaning news on its trending feature; Facebook’s removal of the Pulitzer Prize-winning “Napalm Girl” photo from the pages of prominent users; and the proliferation of “fake news” during the US presidential election. Using theoretical concepts from the field of boundary work, this paper examines how The Guardian, The New York Times, Columbia Journalism Review and Poynter editorialized Facebook’s role in these three incidents to discursively construct the boundary between the value of professional journalism to democracy and Facebook’s ascendant role in facilitating essential democratic functions. Findings reveal that these publications attempted to define Facebook as a news organization (i.e., include it within the boundaries of journalism) so that they could then criticize the company for not following duties traditionally incumbent upon news organizations (i.e., place it outside the boundaries of journalism). This paper advances scholarship that focuses on both inward and outward conceptions of boundary work, further explores the complex challenge of defining who a journalist is in the face of rapidly changing technological norms, and advances scholarship in the field of media ethics that positions ethical analysis at the institutional level.     

Press Credentials and Hybrid Boundary Zones: The Case of WorldNetDaily and the Standing Committee of Correspondents

ABSTRACT

Press credentialing practices are a vital, yet understudied site of scholarly research on journalistic norms and practices. Press credentialing not only structures internal professional hierarchies, but they also signify the boundaries of the journalistic field itself. This paper explores the legal and theoretical implications of press credentialing to cover the United States Congress, drawing on the concepts of boundary work and journalistic authority to demonstrate the material impact of the space between fields on professional legitimation in journalism. Using WorldNetDaily (WND) as a case study, I argue that the Standing Committee of Correspondents (SCC) occupies a hybrid boundary zone between the journalistic and political fields, generating a unique tension in First Amendment jurisprudence that places journalists in a paradoxical role as both the professional embodiments of free speech and its constitutional steward. The resulting jurisdictional conflict between the SCC and WND extends the relational model of journalistic authority by articulating how journalist-state relations can fundamentally augment the process of legitimation at its fuzzy boundaries. The relevance and implications for press credentialing practices in the digital age are discussed.     

Assessing Determinants of Perceived Ease of Use of Institutional Repositories by Lecturers in Nigerian Universities

Abstract

Institutional repositories (IRs) present platform to disseminate research findings to complement the traditional scholarly communication model. The use of IRs is beneficial to authors, host institutions, libraries and society at large. Despite the numerous benefits of IRs, there is low deposit of scholarly works by lecturers and the investment on IRs seems to be a waste. This study examined determinants of perceived ease of use (PEOU) of IRs by lecturers in Nigerian universities. A survey of lecturers received 857 respondents. Awareness, anchor and adjustment factors were found to be determinants of PEOU of Institutional repositories by lecturers in Nigerian Universities.     

A historical analysis of academic development using the theoretical lens of Pierre Bourdieu

This paper provides a history of academic development by examining how a South African institution coped with the potent social forces confronting it before the collapse of apartheid. Theoretically, it draws on the framework of Pierre Bourdieu and engages with a paper written a decade ago by Naidoo, who also used Bourdieu to understand institutional change in South Africa in the late 1980s. Through contrasting the habitus of two professors, it is argued that academic development helps to preserve the autonomy of the university field by refracting forces impinging on it from the economic and political realms.