Mobility and sociality in proximity-sensitive digital urban ecologies: ‘Timid encounters’ and ‘seam-sensitive walks’

This paper is a case study of the use of a proximity-sensitive game played on mobile gaming terminals, in Japan and in France, Dragon Quest 9, and of distinctive forms of mobility and urban encounters which emerge around it. We show how players, when assembled together, walk the ‘connected walk,’ that is they adopt a particular gait, slower than the usual walking pace, with repeated pauses which appears as a tentative and exploratory kind of mobility oriented towards the random occurrence of proximity-based screen-mediated events, and therefore both adjusted to and constitutive of the proximity-sensitive hybrid ecology as a serendipitous place, to be experienced as such. With respect to urban encounters, we have identified a characteristic tension, relevant to locative media in general, in which concerns with potential identification and recognition ‘in the game’ contrasts with the interaction order of urban traffic encounters, characterized by ‘civil inattention.’ This gives rise to the phenomenon of ‘timid encounters,’ in which players strive to experience game encounters with other players a few meters away, while trying to elude visual or verbal recognition.     

媒介发展背景下收视注意力变化及其对电视剧创作的影响

媒介发展为大众传播带来巨大变化,影响了收视方式,也影响了观众对电视剧的注意力投入。从传统媒体时代到移动互联网时代,观众的注意力呈现出与收视氛围、收视状态变化相对应的特征变化——投入程度变深,投入时间缩短。观众的注意力从更换率低的、长时间的、无互动性的内容转移到更换频繁的、短时间的、有互动性的、社交式的内容上。在此情境下,电视剧创作必然呈现符合观众与媒介间注意力法则的新趋势——内容长度缩短,情节强度增强,以及对互动性进行一系列探索。     

项目教学法在移动通信课程中的应用探讨

项目教学法以课程内容为中心,学生为主体,把学生融入有意义的项目任务中,使学生积极主动地学习知识,同时提高学生的实践技能和团队精神。实践表明,在移动通信课程教学中应用项目教学法能取得良好的教学效果。     

中国移动通信市场动态博弈过程模型研究

中国移动市场是中国移动和中国联通双寡头垄断竞争的市场，在现实中，他们的博弈过程是非常复杂的，未必能达到理论上的博弈均衡点，博弈结果是与其博弈过程相联系的。本文根据中国联通成立的初期、中期和后期分为三个阶段，利用两种竞争模型——基于价格博弈的伯川德竞争模型和基于差异化（产量即用户量）竞争的古诺竞争模型，对市场中中国移动和中国联通的动态重复博弈过程，建立模型进行研究。     

网络社交历史与中国早期网民个体生活空间变迁

中国最早的网络移民自始至终伴随了中国互联网的发展,他们的网络使用行为形成了一段不长但至少可以追溯的历史。早期的网络社交将个体从现实物理空间局限中解放出来,具有高蹈于日常生活之上的虚拟色彩;随着网络空间中现实好友的增多和移动位置社交的兴起,网络空间的虚拟色彩渐渐褪去;如今,日常生活中的人际交往不再是在某一单一空间中进行,人们不断地在物理空间与网络空间切换,亦或同时在场。     

新兴业态发展与政府管理变革研究

我国新兴业态的技术支撑仍以移动互联网技术为主,背后的发展逻辑实质是新技术下的资本运作.新兴业态的乘数效应得以体现与扩张,并带来市场权力、市场关系和社会关系的重构,提出市场网络中心、供方、需方的政府监管需求.对此,政府应以公众利益为导向,充分发挥市场稳定器的作用;树立底线意识,把握新兴业态背后的本质社会关系,并通过法律法规政策加以规制;借鉴多方经验与力量,务实提高事中与事后监管能力,应对网络化与信息化的发展趋势;把握时代潮流,以合理方式促进社会经济朝信息化、网络化发展.     

Reliable Ad Hoc Routing Based on Mobility Prediction

Reliability is a very important issue in Mobile Ad hoc NETworks (MANETs). Shortest paths are usually used to route packets in MANETs. However, a shortest path may fail quickly, because some of the wireless links along a shortest path may be broken shortly after the path is established due to mobility of mobile nodes. Rediscovering routes may result in substantial data loss and message exchange overhead. In this paper, we study reliable ad hoc routing in the urban environment. Specifically, we formulate and study two optimization problems. In the minimum Cost Duration-bounded Path (CDP) routing problem, we seek a minimum cost source to destination path with duration no less than a given threshold. In the maximum Duration Cost-bounded Path (DCP) routing problem, we seek a maximum duration source to destination path with cost no greater than a given threshold. We use a waypoint graph to model the working area of a MANET and present an offline algorithm to compute a duration prediction table for the given waypoint graph. An entry in the duration prediction table contains the guaranteed worst-case duration of the corresponding wireless link. We then present an efficient algorithm which computes a minimum cost duration-bounded path, using the information provided in the duration prediction table. We also present a heuristic algorithm for the DCP routing problem. In addition, we show that the proposed prediction and routing schemes can be easily applied for designing reliable ad hoc routing protocols. Simulation results show that our mobility prediction based routing algorithms lead to higher network throughput and longer average path duration, compared with the shortest path routing. This research was supported in part by ARO grant W911NF-04-1-0385 and NSF grant CCF-0431167. The information reported here does not reflect the position or the policy of the federal government.     

手机报纸之现状及其发展

手机报纸具有传播新闻信息快速、满足受众个性化需求、受众反馈及时、业务运行成本低的特点。虽然手机报纸现阶段还受到技术的不完善、内容缺乏创新、盈利模式不完善的制约,但作为一种新生的传播方式,手机报纸有其自身的顽强生命力。     

“Whatsapping” the continuity of postpartum care in Switzerland: A socio-anthropological study

BackgroundDigital media such as Apps, Internet and social networks have become integral parts of the maternity experience for more than a decade. These media can support or undermine women’s experiences as has been shown in digital sociology research. Using Immediate Messaging Applications to provide information and support to women during the perinatal period is an emerging practice.AimThis article analyses how health and social care professionals – with a focus on community midwives – and women communicate between postpartum home visits through Immediate Message Applications in Switzerland.MethodsA socio-anthropological study that relied on qualitative methods including semi-directed interviews with midwives and health and social care professionals (n = 30) and immigrant women (n = 20).FindingsSince the introduction of Immediate Messaging Applications, women and their carer converse more regularly between post-partum home visits. Women send questions, pictures and videos to them, often allowing swift responses to their concerns. Midwives encounter difficulties answering women’s questions when they cannot be solved through quick communication (e.g. infant crying). To them, texting frequency forms a clinical clue to women’s mental health. Not all women contact their carer through digital messages; immigrant women are less likely to know and use this service.Discussion and conclusionImmediate Messaging Applications form a promising communication tool, complementary to home visits, and contribute to woman-centered care and continuity of care. As an emergent practice, it has not been framed by a guideline yet. Policy makers and practitioners should ensure that its use does not contribute to unequal access to care.     

中国移动通信企业在WTO条件下的营销战略

随着我国“入世”后各项承诺的逐步实施 ,以及相应的国外移动通信企业的进入和逐级的市场渗透 ,我国移动通信企业将面临严酷的竞争与挑战。我们必须充分发挥中国移动通信企业的本土优势和后发优势 ,通过制定和实施高效率的市场营销战略 ,以品牌资产管理和服务管理战略为先导 ,实施强有力的市场覆盖和市场定位战略和优化营销组合管理 ,提升中国移动通信企业的竞争力 ,以适应 WTO条件下的国际、国内市场环境。