Social networking relationships,firm‐specific managerial experience and firm performance in a transition economy: A comparative analysis of family owned and nonfamily firms

The effect of social networking relationships, firm‐specific managerial experience, and their interactions on performance between family owned and nonfamily firms are studied. Using data from 106 organizations in Ghana, the findings show that family owned firms benefit more from networking relationships with bureaucratic officials than do nonfamily firms. However, nonfamily firms benefit more from networking relationships with community leaders and firm‐specific managerial experience than do family owned firms. Networking relationships with politicians impede performance for nonfamily firms. Nonfamily firms are better able than family owned firms to use their firm‐specific managerial experience to manage the resources and capabilities obtained from networking relationships with community leaders to create value. Moreover, firm‐specific managerial experience attenuates the detrimental effects of networking with politicians for both types of firms. Copyright © 2012 John Wiley & Sons, Ltd.     

数据链系统抗截获、抗干扰方法研究

利用数据链系统自身的战场态势实时共享特性,通过计算和仿真,提出并量化了如何根据敌方电子侦察干扰平台的航迹,动态调整数据链应用平台工作参数的方法和途径,从而达到了提高数据链系统抗截获、抗干扰性能的目的.     

Classification of various attacks and their defence mechanism in online social networks: a survey

Due to the popularity and user friendliness of the Internet, numbers of users of online social networks (OSNs) and social media have grown significantly. However, globally utilised, social networks are the consequence of the lack of understanding of secrecy and protection on OSN and media has increased. Secrecy and surety of OSNs need to be inquired from various positions. According to recent studies, OSN users expose their private information such as email address, phone number etc. In this paper, we have presented a high-level classification of recent OSN attacks for recognising the problem and analysing the blow of such attacks on World Wide Web. We have also discussed OSN attacks on different social networking web applications by citing certain recent reports such as Kaspersky security network and Sophos security threat report. We also offer some simple-to-implement user practice tips to protect the system and user’s information. In addition to this, we have discussed a comprehensive analysis of numerous defensive approaches on OSN security. Lastly, based on the acknowledged strength and faults of these defensive approaches, we have explained open research issues.     

Social media marketing in wine tourism: winery owners’ perceptions

This paper examines winery owners’ attitudes and perceptions regarding the use of social media in marketing and promoting wine tourism online. Empirical evidence is provided by a sample of 20 winery owners in the North Italian region of Langhe, who have engaged to a greater or lesser extent in social media. The findings show that while the majority of winery owners recognise the social, economic and emotional benefits of social media, they are far from exploiting its full potential, partially due to barriers such as their agricultural mentality and the time-consuming nature of social media.     

Examining Social Networking Sites as a Survey Distribution Channel for Hospitality and Tourism Research

As businesses use social networking sites (SNS) to connect with consumers, SNS can be viewed as another way to collect users’ information. Since many consumers spend significant amounts of time connecting with others on SNS, it would be a suitable channel to gather information from the captured audience. This study compares survey responses from the traditional paper-and-pencil survey and online survey collected through an SNS recruitment method. The test results showed that there are no statistically significant differences in model fits from the two data collection methods. Thus, this study concludes that SNS holds great potential to serve as a survey distribution channel for collecting meaningful data. More in-depth empirical studies are needed to validate the method before using it for a wider range of research.     

Social Media Usage by Law Firms: Correlation to Revenue,Reputation, and Practice Areas

Social media can be used for multiple purposes within the legal profession, such as client development, networking, disseminating information, and building awareness of the firm and its practices. This study found that the more social media platforms a firm uses, the higher its ranking among prestigious law firms. Based on the practices of successful law firms, it is recommended that lawyers maintain LinkedIn and Twitter accounts as a way to connect with clients and the public. Findings indicate that additional platforms are beneficial, based on the practice areas of a firm. Guidelines are provided for composing effective social media messages.     

公路货运业网络化组织模式研究

运用网络化组织研究方法对公路货运业的几种中间组织模式的网络化进行分析,为公路货运业的网络化组织发展提供了具体的途径;并且进一步分析网络化组织演化过程,指明我国公路货运的发展阶段和发展趋势,对公路货运业走出目前的困境具有一定的指导意义。     

平安城市监控系统建设中的组网问题

我国平安城市监控系统建设日趋普及,但在建设过程中存在财政投入不足而出现分区建设、分区管理的现象。这使得平安城市监控缺乏统一的管理,给城市安全防范工作带来不便。文章根据不同行业的应用需求及特点,提出监控系统整体解决方法,包括对需求的分析、功能实现的方法等。     

探析“微信”应用对网络社交的深刻影响

随着“微信”的崛起，它已成为现代社交人际沟通中的新媒体和新方式，越来越多的现代人步入了这种“微时代”。微信的广泛应用给人际沟通带来了机遇与挑战。文章从心理学角度来深刻剖析微信功能对社交的影响，从而正确构建和谐的网络社交。     

行星表面有人探索高速无线网络体系架构及关键技术

针对行星表面有人探索任务对高速无线通信的需求，提出了一种基于异构组网思想的网络体系架构，并对关键技术进行了分析和设计。该架构采用“三网两体制”的设计思路，将整个网络分为高速传输网、多媒体接入网、覆盖扩展网三个组成部分，三层网络分别完成高速骨干传输、多节点多业务接入、覆盖范围灵活改变的功能。根据三个网络不同的节点处理能力和传输需要，设计了高速传输体制、灵活接入体制两种传输体制，及基于无线多跳的覆盖扩展技术、多子网通信切换技术、多体制融合技术等关键技术。该网络架构具有裁剪灵活、协议开销小、支持业务类型多等特点。