"开关"问题的数值方法及在资料变分同化中的应用

提出了“开关”问题的一类微分方程模型，方程在临界值处是不连续的，用经典的数值方法求解此类问题时会出现很大的数值误差，数值精度降到了一阶，详细研究了这类问题，提出用Hermite插值方法确定开关时刻，分段求解连续的微分方程的间断装配方法，使原有的数值方法恢复其数值精度，将此方法应用到资料变分同化中，获得了高精度的数值解。     

记者角色冲突的原因探析

新闻传播活动中,消息来源、受众、传媒组织对记者的角色期待与记者角色规范之间保持着大体一致的关系,这是四方长期互动形成的协商结果,也是新闻传播活动能够正常进行的基础。然而社会实践中来自不同主体的带有特定意愿的角色期待与记者的角色规范发生抵牾是客观存在的,这是造成记者角色冲突的主要原因。     

马克思主义新闻观教育问题研究综述——基于2010年以来CNKI的相关文献

马克思主义新闻观教育研究是新闻学界和新闻业界的重要研究领域。本文对2010年至今国内马克思主义新闻观教育的研究文献进行整理与分析,对国内马克思主义新闻观教育的整体情况、研究内容、研究特征进行梳理。研究发现:学者们主要围绕马克思主义新闻观教育新模式、重要作用与意义、教育现状、问题与策略等几个方面开展研究,并取得了丰硕成果;但对马克思主义新闻观教育的研究还比较欠缺,而且已经进入瓶颈期。     

意志力、潜意识脑理论在程序设计课程的应用研究与实践

本文将心理学和脑科学的两个新理论——意志力、意识脑和潜意识脑的最新研究成果运用到计算机程序设计课程的教学中。根据这些理论对人本性的解释,制定新的授课模式,即"极致精简、以练代讲"的授课模式。该模式以学生学习情况为基础,动态分配教学学时,极致精简讲授内容,大量增加课堂练习和思维性训练,分组"以练代讲",进行"计算思维"训练。通过二学年的教学实践,对比未采用此方法教学的同专业班级,该方法取得了非常好的教学效果。     

Mixed Messages

Using the tools of discourse analysis, this research identifies the competing and sometimes contradictory public discourses around the requirements for the next generation of journalists—those of journalism educators, industry accreditation bodies, and of employers and journalists in the wider media landscape. Investigating and identifying the tensions in this debate may help all the parties to reflect on how the values and aims of the professional journalist are constructed and how this may impact on potential journalists entering education and the industry.     

Playing by a Different Set of Rules

The notion that journalists in an interconnected world increasingly share values typically associated with the so-called “professional model” has gained considerable currency with scholars arguing that ideas such as a belief in journalistic autonomy, public service, objectivity, and the significance of ethics are widely espoused by journalists on a global scale. Underlying this conceptualization is a taken-for-granted assumption regarding the adoption of journalistic values that originated in Western democracies which neglects how they are embraced in non-Western contexts. This paper examines newsroom values in India’s regional television channels, which have emerged as a major news source in the country. Findings indicate that in the case of Indian regional television, local socio-political and economic factors undermine the adoption of professional norms derived from the Anglo-European model by Indian journalists who see such norms as having little functional value or relevance to their work.     

Incongruity in News Headings

In the rapidly changing news market, quality newspapers are searching for ways to combine established journalistic practices with attractive presentation of their newsprint. On internet news sites, attention-getting headlines are even more important in obtaining readership. This paper investigates the role of incongruity in selection of headings, and recall, recognition, and appreciation of selected news items. In Experiment 1, headlines were written on three incongruity levels: straightforward, ambiguous (trope), or stylistically deviant (scheme). In Experiment 2, news headlines were accompanied by either consistent or inconsistent photographs. Results of both experiments showed that heading incongruity enhanced information processing of news items.     

MANAGING CREATIVITY IN CHANGE

This article is concerned with the management of creative journalistic work in a media organisation. It reports and analyses a case study conducted in one of Europe's largest media corporations: the focus of the study was a development team of journalists set up and charged with creating and producing a new multi-platform media service and its content. The article discusses the ways in which the creativity of media professionals is supported and managed under the constantly changing conditions of media work and journalistic practices. The study contributes to research on creativity in the media industry, particularly the management of creativity in journalism and media work. The findings identify the key motivations and constraints in relation to creative journalistic work in the media industries under digital transformation. Specifically, media professionals are motivated by the opportunity for developing new skills and competencies as well as chances to create new journalistic products and practices. The article suggests that the skills of change management, communication management and project management are crucial for creative media work.     

Feature Solution in the Process of Parameterizing Port Model

Aimed at attaining to an integrated and effective pattern to guide the port design process, this paper pats forward a new conception of feature solution, which is based on the parameterized feature modeling. With this solution, the overall port pre-design process can be conducted in a virtual pattern. Moreover, to evaluate the advantages of the new design pattern, an application of port system has been involved in this paper; and in the process of application a computational fluid dynamic analysis is concerned. An ideal effect of cleanness, high efficiency and high precision has been achieved.     

Opportunity or risk? How news organizations frame social media in their guidelines for journalists

Guided by regulatory focus theory and framing, the present study analyzes how U.S. and British mainstream news organizations (N = 12) frame the current social media environment in their social media guidelines. The results indicate that news organizations dominantly frame the new environment as a risk to guard against, warning of the possible harm to their reputations and journalism norms such as accuracy and objectivity (prevention-focused), rather than as an opportunity to actively take advantage of (promotion-focused).