In the Original publication of the article the revised date was erroneously published as: 20 August 2017 the correct date is: 20 August 2020.

Screen time has become a hot button issue in psychology with researchers fiercely debating its mental effects. If we want to understand the psychological dynamics of technology use, however, a numerical conceptualization of screen time will lead us to gloss over crucial distinctions. To make this point, the present article takes a hermeneutic approach to a negative form of screen time known as ‘phubbing’, which is the practice of snubbing conversational partners in favor of one’s phone. Using interview data, it (...) is demonstrated that whether or not phone use amounts to phubbing, that is, whether or not it tips over and becomes harmful, depends on a host of contextual factors such as relation (who), content (what), purpose (why), timing (when), and communication (how). These findings demonstrate that not all screen time is created equal: what is harmful and inappropriate in one context is benign in another, and vice versa. Simply put, screen time is not a numerical entity whose causal effects we can measure and explain, but a meaningful activity that we must try to understand. (shrink)

Major events such as the COVID-19 pandemic, Olympic Games, and G20 Summit bring about supplier disruption risks and challenges to supply chain management. To help deal with these risks, a virtual dual-sourcing production-inventory system can be deployed. In this paper, we study such a system which consists of a raw material supplier, a manufacturer, and a virtual dual-sourcing contingency supplier. The manufacturer needs to determine the production, procurement, and inventory plan of raw materials. When its supplier is interrupted, the manufacturer (...) may need to adjust the production and inventory plan and work with the contingency supplier. We develop a system dynamics method to simulate the operations in this production-inventory system to identify the approximately optimal order-up-to-level inventory policies. We find that the virtual dual production-inventory strategy can be the optimal contingency policy to deal with supplier dynamic disruption risks. Furthermore, for disruption risk with low frequency and long duration, the manufacturer should increase the safety inventory level before the disruption. Otherwise, it should increase the safety inventory level in every cycle. (shrink)

Without a doubt Karl Marx’ philosophical work had a huge impact on “western” concepts of society and economics that still reverberates in the philosophical discourse. In the analysis of this ongoing discourse however the work of Chinese scholars is underrepresented. This book is a translation of the reference work «Back to Marx» first published in 1999 in the PRC. The book is a serious inquiry into the interrelationships between Marx‘s political and economic philosophy, based on careful and systematic reading of (...) a wide range of textual sources, including—in particular—the newly published second edition of the Complete Works of Marx and Engels (MEGA2), which collects notes, drafts, manuscripts, and excerpts previously unavailable to the scholarly community. The author Zhang Yibing teaches philosophy at the University of Nanjing and is one of the foremost scholars of Marxism in the PRC, a Marxist analyst of contemporary philosophical issues. At the same time he is the Vice Chancellor of the University. (shrink)

本书指认的马克思主义关于人类社会发展在一定历史时期出现似自然性和物役性现象的理论,是马克思主义科学世界观中历史辩证法逻辑主体向度的重要内容.

本书分为上下篇,上篇收录作者1982~2001年间写作和发表的有关马克思哲学研究的11篇论文,下篇收录作者1985年到今天写作和发表的有关国外马克思主义哲学研究的16篇论文。.

本书原创性地在所谓文本学解读中构建了一种交互性的支援背景融入,传统的作者思想独白为非线性的复习讨论语境替代了,多重话语的对话式布展造就了一个非同一性的讨论域。.

本书原创性地在所谓文本学解读中构建了一种交互性的支援背景融入,传统的作者思想独白为非线性的复习讨论语境替代了,多重话语的对话式布展造就了一个非同一性的讨论域。.