动态视角下中国城市群土地利用TFP测度及影响因素研究

提高城市群土地利用TFP对合理高效利用土地资源,协调好城市群经济发展、资源配置和环境保护具有重大理论和实践意义.文章运用DEA-Malmquist指数对2003—2016年动态视角下中国城市群土地利用TFP进行测度和时空演变分析,并利用Tobit回归模型对影响城市群土地利用TFP变化的因素进行深入研究.结果表明:从时间维度看,城市群土地利用TFP年均上升0.7％,城市群土地利用TFP增长由技术效率和技术进步"双核驱动",技术效率的提升主要与纯技术效率提升有关,规模效率是技术效率和土地利用TFP提升的瓶颈约束;从空间维度看,晋中、哈长、海峡西岸、中原、长江中游、北部湾、成渝、黔中、关中平原和兰西城市群土地利用TFP呈下降趋势,其余城市群土地利用TFP均呈上升趋势,且京津冀、呼包鄂榆、辽中南、长江三角洲、山东半岛和天山北坡城市群土地利用TFP增长为技术进步和技术效率"双核驱动";从影响因素看,人均GDP和年末金融机构人民币各项贷款余额对中国城市群土地利用TFP具有正向促进作用,城市财政支出占本市GDP的比重和人口密度具有负向阻碍作用.     

Arranging sensations: smell and taste in augmented and virtual reality

The development of digital taste and smell underscores the importance of cultural dimensions of bodily perception in augmented reality (AR) and virtual reality (VR) devices. This can be seen in Vocktail and Season Traveller, two digital devices incorporating taste and smell. Vocktail is an AR technology that augments the experience of drinking water, or even air, through the electrical stimulation of tastebuds and the manipulation of color and smell. Season Traveller is a VR game in which the user moves through four seasonal landscapes. It uses wind, odor, and temperature in addition to the more standard audio-visual displays. The cultural dimensions of these devices can be examined using phenomenological terms. They instigate perceptual circuits, and call on and create sedimented habits. Although VR and AR are often thought of in terms of their similitude to reality, understanding Vocktail and Season Traveller this way illustrates the world-creating dimension of multisensory devices. These technologies structure and shift thresholds of taste and smell, reworking past perceptual styles and habits to develop new perceptual experiences. In so doing, Season Traveller and Vocktail throw to the fore questions about the conditions according to which people exercise their senses in digitally dominated environments.     

iConstruct: virtual disabilities in online settings

The present study focused on cultural constructions of disability in virtual settings, examining specifically how cultural constructions of disability were mediated through the use of online technology. This was accomplished by identifying and analyzing Greek Cypriot online news media articles and online readers’ posts in response to these articles. Findings indicated that disability in these online settings mainly reproduced traditional models of disability, with the charity model being more prevalent. However, there were instances in which dominant discourses of disability were ruptured through the introduction of counter-narratives in users’ posts which echoed the human rights model of disability. Implications for the fields of media, education and disability studies are discussed in relation to the possibility of using digital media to contribute to the challenge of critical media literacy to address issues of diversity and disability.     

中国制造业集聚：度量与显著性检验 ——基于集聚测量新方法

 根据集聚分布的自身特点，本文提出了可以进行显著性检验的普适性产业集聚指数,并对我国28制造业1994年的860个样本和2004年800个样本进行测量和检验，我们的计算结果表明，中国制造业的集聚强度总体上呈上升趋势，同时具有集聚和扩散双重现象。     

不同城市的房价是否具有相同的人口集聚效应——基于35个大中城市PVAR模型的实证分析

人口集聚会引起房价上涨,但不同类型的城市由于集聚人口的教育程度不同,房价上涨也具有不同的效应。首先建立人口流动理论模型分析人口集聚对房价上涨的影响,然后通过建立房价、人口集聚、房地产投资和人均可支配收入的PVAR模型进行实证分析。结论表明,一类城市人口集聚对房价上涨具有正效应,二类城市为平效应,三类城市为负效应;三类城市的房价上涨主要是房地产投资和人均收入提高所推动的。     

粤港澳大湾区背景下珠三角城市群经济一体化与城市关联分析

为研究粤港澳大湾区背景下珠三角经济区各城市区经济之间的联系程度及变化情况,探究广州和深圳两大中心城市在整个珠三角城市群发展过程扮演的角色,选取珠三角九大城市2000～2016年相关经济数据,一方面从GDP、劳动和资本3个方面运用KLD散度对珠三角城市群的经济一体化程度进行测算;另一方面结合引力模型和ADF单位根检验、Johansen协整检验以及Granger因果关系等分析方法对珠三角城市群内经济体之间的经济关联性进行实证分析。研究认为,珠三角城市群经济一体化程度呈现两阶段发展特征,在2013年之前呈逐渐加强趋势,但随后不断减弱;劳动和资本一体化程度整体上远高于GDP一体化程度,经济发展不平衡对珠三角城市群经济一体化程度影响较大;广州经济发展的虹吸效应明显,深圳经济发展的独立性较强,两大中心城市对城市群内部其他经济体经济发展的拉动作用有待加强。广州要继续发挥服务和教育产业优势,积极寻求与其经济合作潜力较大的城市探索互利共赢的交流模式;深圳应积极探寻与其他地区供求互补产业之间的合作可能性;调动具有较高经济合作潜力但不存在双向因果关系或任何经济发展联系的城市组合,探索适合彼此经济发展的合作途径;积极推进粤港澳大湾区建设,加强珠三角资源配置范围,积极探索与香港、澳门合作机会,实现湾区内产业互动发展。     

大学生虚拟生存的影响及对策

大学生虚拟生存是大学生群体在物理身体不在场状态下,在以比特为单位的数字化环境中,凭借现代电子通信、网络技术等手段,利用网络信息资源开展学习、工作、娱乐等一系列活动的行为。它满足了大学生求知娱乐、社会交往、自主平等、自我实现的需要,同时也给大学．牛的心理和行为带来了消极的影响,应采取措施积极应对。     

网络犯罪的法理分析和立法思考

随着计算机和信息网络的普及,人类的交流更加方便和快捷。与此同时,网络犯罪也呈现出复杂多样的形态,且危害性日益严重。令人忧虑的是,由于我国法律体系建设的滞后,对一些新型的网络犯罪行为的定罪还存在无法可依的现象。笔者试就几种主要的网络犯罪行为进行分析,并在此基础上对网络立法问题提出一些初步的意见。     

Virtual Interpersonal Touch and Digital Chameleons

We studied the characteristics of hand touch with a mechanical device that approximated a handshake, and we then examined the effect of handshake mimicry on assessment of a partner. Two participants interacted with a force-feedback joystick that recorded each of their hand movements individually. The two participants then greeted one another by feeling the recording of the other person’s movements via the force-feedback device. For each dyad, one of the participants actually received his or her own virtual handshake back under the guise that it was the other person’s virtual handshake. Results demonstrated three significant findings. First, for any given participant, a metric that took into account position, angle, speed, and acceleration of the hand movements correlated highly within individuals across two handshakes. Second, across participants, these metrics demonstrated specific differences by gender. Finally, there was an interaction between gender and mimicry, such that male participants liked people who mimicked their handshakes more than female participants did. We discuss the implications of these findings and relate them to theories of social interaction.

自贸区所属城市创新驱动发展评价

自贸区对所属城市创新能力具有直接推动作用。选取福建省为评价对象,应用改进熵值法,实证分析自贸区所属城市创新驱动发展要素及互动关系,指出科技进步、政策支撑、产业参与和环境匹配是区域创新的重要因素,在资源秉赋差异明显的情况下,应着力推进科研投入与措施创新,并加快人才培育和产业集聚。