基于Newsboy及多个竞争网商的订货模型建构

以需求受价格和广告投入影响的Newsboy问题为研究对象,结合网络环境,建立了不确定环境下多个竞争网商进行最优定价、广告投入和订货量的联合确定模型,指出该模型存在唯一的纳什均衡解。最后给出案例进行数值解法演示,以模型建构和应用来优化网商订货策略,帮助网商订货、定价、广告和库存管理决策。     

论我国跨境远程教育的质量保障

随着国际教育贸易竞争的不断加剧,世界各国的跨境远程教育迅速发展,为维护我国在国际教育竞争中的地位,亟需从整体上建立健全我国跨境远程教育的质量保障体系.该体系既应包含外部质量保障和内部质量保障两个层面,更应体现其自身的独具特色,涵盖网络公开课和微课程、跨境学生学习支助服务、双向信息交互、国家安全、跨境远程教育项目的管理和评估等诸多方面的质量保障,唯有如此,才能推动我国的跨境远程教育持续健康快速发展.     

Agent Rationality Behind Network Formation

We search for agent behavior rules which lead to the emergence of social networks that exhibit empirically observed phenomena: small-world property, scale-free degree distribution and stability in time. We assume that agents form and sever links using a cost-benefit analysis. Agents receive benefit from own links and from links that their friends form. On the other hand, link formation, deletion and keeping is costly. We find that a simple model structure which relies only on convex cost of link upkeep leads to stable networks which exhibit the small-world property.     

大学生网络行为去抑制化的类型与成因分析

网络这把“双刃剑”在满足大学生的发展需求的同时,也导致大学生去抑制化的网络行为。文章分析归纳了大学生网络行为去抑制化的类型及成因,提出了对策建议,旨在为规范大学生网络行为提供参考。     

网络流行体的语体学分析

网络流行体是一种语体,它是为适应网络语境而产生的言语功能变体,它具有集体性、规约性和层次性。网络流行体的上位语体是网络语体,下位语体包括引用体、仿拟体和戏拟体。网络流行体具有互文性、顺应性、借助网络媒体通过语言模因进行传播等特征。     

Family Social Networks and Recovery From Severe Mental Illness of Clubhouse Members

This study examined the contribution of family social network variables to recovery among Clubhouse members. A random sample of 118 members from one Clubhouse was recruited for this cross-sectional study. Among all respondents, greater overall family support and better relationship quality with the most supportive network member were correlated with greater levels of recovery. Clubhouse members perceived higher quantity and quality of support and more criticalness from their most supportive network members, principally family members, compared to the rest of their family members. Longitudinal studies are needed to further investigate the relationship between family support and recovery.     

Social Networking Among Health Sciences University Students: Examining Social Network Usage,Social Support,and General Well-Being

Social network sites (SNSs) are organized around users who join an internet network to engage in daily discussions and postings. Though research informs us about SNSs usage, no published research addresses the use of social network sites among health science professionals. This study examined the relationship between social network usage, social support, and general well-being among undergraduate and graduate students. This study provides results that identify significant relationships (p < .001) associated with SNS usage and the variables of social support and general well-being among this study population. These results can inform the use of SNSs in university health sciences educational programs.     

Many Faces of Openness in Adoption: Perspectives of Adopted Adolescents and Their Parents

Parents and adolescents (mean age, 15.7 years) from 177 adoptive families participating in the second wave of the Minnesota/Texas Adoption Research Project were interviewed about their post-adoption contact arrangements. The sample included families with no contact, stopped contact, contact without meetings, and contact with face-to-face meetings between the adolescent and birth mother. Openness arrangements were dynamic, and different openness arrangements were associated with different experiences and feelings. Adoptive families with contact reported having higher levels of satisfaction about their openness arrangements, experiencing more positive feelings about the birth mother, and possessing more factual and personal knowledge about the birth mother than did families without contact. Adolescents and adoptive mothers in the contact with meetings group reported the greatest satisfaction with their openness arrangements; those with no contact or stopped contact reported the least satisfaction with their arrangements. Participants having no contact were more likely to want the intensity of contact to increase in the future rather than stay the same. Many participants already having contact wanted it to increase in the future. Fewer than 1 percent of all participants wanted to see the intensity of contact decrease.     

MAKING A NAME IN GAMES

This article explores the development and implementation of a Toronto-based incubator supporting local women in developing their own games. The incubator was created to help change the current (male-dominated) status quo of game production, promising participants skills sharing, support for the development of a new game, and entry into the local community of indie games developers. It was at the same time part of a large network of commercial and non-commercial interests with a shared agenda of promoting the local digital innovation scene. These different motivations and actors are considered to understand the nature of this complex social network market and the circulation of particularly feminized affective labour therein, detailing how value, reward, and benefit are conceptualized throughout this network. The article focuses on how and where these understandings are in alignment and where they fall apart, revealing problematic structures of power and control linked in particular to gender and entrepreneurialism in the area of digital innovation.