Reaching audiences through travel vlogs: The perspective of involvement

Travel vlogs are popular, but how audiences get involved while watching remains unclear. This study explored audience involvement along with expressions of travel intention. A systematic sampling procedure was developed, filtering 132 ‘highly involving sessions’ from 25 videos in Bilibili, a Chinese video-sharing platform. Qualitative analyses were applied, and the findings were threefold. Firstly, a five-category video content typology was highlighted, including frame aesthetics, video editing, fandom, humour, and tourist experiences. Secondly, bullet comments were deconstructed into six dimensions through examining concepts of ‘audience involvement’. Lastly, to address possible patterns of travel intention linked to the video content types, three propositions were made. This work serves as an exploration of audience involvement in the travel vlog phenomenon, an elaboration of travel intention expression in this context, and a method of assessing tourist-generated videos through bullet comments. Practical implications were discussed.     

基于Aptina ASX340的倒车影像系统设计与实现

为了避免倒车过程中因视觉盲区可能出现的安全隐患问题[1][2],文章采用飞思卡尔单片机做主机,Aptina图像传感器ASX340[3]做从机,利用ASX340内部的OVERLAY位图叠加系统,设计了一种能够将倒车过程中实时的车辆尾部的影像,距离障碍物的安全距离,倒车轨迹路径等信息提供驾驶员倒车影像系统[9][10]。使用HYRes3_1、Imatest软件[4]测量了影像图像质量的主要因素。测量结果表明成像质量能够满足目前车厂的要求。     

Digital gaming culture in Vietnam: an exploratory study

ABSTRACT

New information and communication technologies continue to spread rapidly into the Asian marketplace, which has led to new patterns of leisure consumption, one of the most popular being digital gaming. However, in Vietnam there is limited research on gaming as a leisure activity. The purpose of this study is to explore the phenomenon of digital gaming in Vietnam to better understand how it is practiced in this culture. Semi-structured interviews were conducted with twenty-five gaming industry figures and gamers. Thematic analysis was used to guide data collection and analysis. The findings indicate that glocalisation, socialised gaming practices and competitiveness characterise the Vietnamese gaming experience. The distinct culture of Vietnam combined with globalised gaming consumption habits has created new modes of play culture, and hence leisure experiences that are growing in pervasive and influential ways.     

#br# 融资融券加大了沪深股市波动吗*

融资融券设计初衷是通过融资加强市场流动性和通过融券提供投资者规避价格下跌风险的金融工具，改善由供求关系严重失衡导致市场巨幅震荡的局面，实现资本市场长期稳定的目标。实际操作中，融资融券疏通货币市场和资本市场间的资金流动，撬动巨额资金涌入股市；融资规模扩张过快而融券做空力量薄弱，业务结构发展严重失衡，导致两融业务具有“小冲击、大波动”的金融加速效应，放大了外部冲击引起股价上涨和下跌的幅度。协整回归分析表明，两融业务规模的扩张和收缩对上证指数涨跌具有显著的同向影响。TGARCH事件模型结果进一步证实融资融券从稳定股价到加剧波动的功能变化。随着标的股票扩容和业务常规化，两融业务导致股市投机过度，加剧了沪深两市的资产价格异动，没有达到平抑波动的设计预期。     

A NEW LOOK AT SHORT‐TERM IMPLIED VOLATILITY IN ASSET PRICE MODELS WITH JUMPS

We analyze the behavior of the implied volatility smile for options close to expiry in the exponential Lévy class of asset price models with jumps. We introduce a new renormalization of the strike variable with the property that the implied volatility converges to a nonconstant limiting shape, which is a function of both the diffusion component of the process and the jump activity (Blumenthal–Getoor) index of the jump component. Our limiting implied volatility formula relates the jump activity of the underlying asset price process to the short‐end of the implied volatility surface and sheds new light on the difference between finite and infinite variation jumps from the viewpoint of option prices: in the latter, the wings of the limiting smile are determined by the jump activity indices of the positive and negative jumps, whereas in the former, the wings have a constant model‐independent slope. This result gives a theoretical justification for the preference of the infinite variation Lévy models over the finite variation ones in the calibration based on short‐maturity option prices.     

The Informational Role of Short Sellers: The Evidence from Short Sellers’ Reports on US‐Listed Chinese Firms

Using US‐listed Chinese firms as the setting, this paper studies a novel channel through which investors can acquire information about firms’ financial reporting quality, that is, the reports published voluntarily by short sellers. I find that short sellers tend to target firms that have financial reporting red flags and that exhibit ‘good’ operating performance and stock valuations. Targeted firms experience an average three‐day cumulative abnormal return (CAR) of ?6.4%, and ?13.6% for initial coverage of the firm, and the CARs are more negative when the reports allege more severe misconduct of the firms. Non‐targeted firms also experience losses in value following short seller reports, especially when they hire the same non‐Big 4 auditors as targeted firms and when their earnings quality is poor. In comparison, analysts fail to perform proper due diligence and are much less effective than short sellers in exposing misreporting risk in Chinese firms.     

Myopic market pricing and managerial myopia

This paper develops a firm‐level measure of myopic market pricing, which captures the extent to which the market overvalues short‐term expected abnormal earnings relative to longer‐term ones. The empirical analysis shows that myopically priced firms manage earnings more actively and invest less in R&D. The impact of myopic market pricing is concentrated in firms where managers cater more to market pricing, that is, in firms with greater short‐term investor ownership, with CEO compensation that is more sensitive to the firm share price, and with higher equity dependence. Additional tests show that these findings are robust to the consideration of market (under)overpricing. The results suggest that when managers cater to market pricing, market myopia encourages managerial myopia.     

福建省公路网可达性研究

基于福建省区域系统的开放性,以县域为研究单元,采用平均旅行时间指标,利用TransCAD软件对福建省公路网的可达性进行计算,并分析可达性空间格局的特征。     

修井作业现场3G网络视频监控系统的研究

目前油田修井作业现场生产方式存在信息不畅通的问题,无法实时跟踪监控井场安全生产运行情况和设备安全运转情况。研究应用"修井作业现场3G网络视频监控系统",能很好的解决作业现场视频信息及时交换问题,较好的解决了较偏远的作业队督查、监控问题,提高油田修井作业现场安全管理和应急管理水平。     

手机二维码在高校数字化图书馆中的应用

文章提出结合移动通信技术和图书馆自动化技术,通过短信服务、WEB／WAP网络将手机二维码和图书馆自动化系统有效的整合在一起,构建新型高校数字化图书馆的模型、论述了手机二维码在高校数字化图书馆的各项管理和服务流程中的应用,对未来通过结合图书馆自动化系统、短信服务和手机二维码构建高校数字化图书馆子以展望。