Enhancing Knowledge Sharing with Information and Communication Technology (ICT)

The acceleration of technological change and trade liberalization in the 1990s have significantly intensified market competition and transformed the world economic infrastructure from a resource- and manufacturing-based economy to one in which knowledge and services are the key drivers of economic growth. In order for an organization to capitalize on its knowledge and truly become a learning organization, it must begin to systematically manage and leverage knowledge existing internally and externally to create and sustain its competitive advantage. Numerous empirical studies on knowledge management have examined the relative effectiveness of various enablers, such as organizational structure, technology, culture, managerial system and strategy on knowledge creation and sharing in organizations. The enablers examined earlier are mostly related to organizational infrastructure that promotes knowledge sharing in organizations. This paper examines specifically the critical role of information and communication technology (ICT) in facilitating and enhancing knowledge sharing and organizational performance. This study adopted a process oriented approach by using Nonaka’s (1994) knowledge sharing model. The results indicate that significant positive effects of ICT support on knowledge sharing and all dimensions of knowledge sharing are significant predictors of organizational performance.

Baghdad bureaux : an exploration of the interconnected world of fixers and correspondents at the BBC and CNN

Post-war Iraq is so dangerous that Western television correspondents have been forced to change their modus operandi and rely more heavily on locally-hired fixers. This article asks if the virtual absence of overseas reporters from Iraq’s streets has led to a less authentic news gathering role. Conversely, it may have delivered a more nuanced form of editorial and logistical task-sharing. This research draws on interviews conducted in 2007 and 2008 with twenty foreign correspondents, two senior news managers and five fixers. It employs Bourdieu’s analysis of cultural capital as a framework to examine the exchange of different forms of power and expertise between the players. Where trust is now at the forefront of this news gathering relationship, this research deconstructs the methods by which fixers are recruited and deployed. A comparison is made between the news production techniques of foreign correspondents who employ fixers for short-term purposes and correspondents from the Baghdad bureaux of the BBC and CNN.

Impact of leadership and power on successful ERP adoption

Case study research investigating the impact of culture upon a Hong Kong based construction contractor's leadership in implementing an Enterprise Resource Planning (ERP) system unearthed rich data relating to the predominantly Hong Kong Chinese cultural perspective of power, leadership and followership. Intimately involved participants were surveyed using both structured and semi-structured interviews. The study's focus was centred upon the interplay between culture, power and how people interact with the way that the ERP is used and how teams of people involved in the ERP implementation, perceived the supportive nature of the organisation's leadership in deploying the ERP. A culturally sensitive empowering leadership style was a significant issue in successfully project managing and deploying the ERP. Understanding how teams and their leaders interact and how power and trust influences the facilitation role of leadership is also useful in gauging how an ERP can be most effectively deployed.

OST : A transaction based online social trust model for social network and file sharing security

The continuous growth of the users pool of Social Networking web sites such as Facebook and MySpace, and their incessant augmentation of services and capabilities will in the future, meet and compare in contrast with today's Content distribution Networks (CDN) and Peer-to-Peer File sharing applications such as Kazaa and BitTorrent, but how can these two main streams applications, that already encounter their own security problems cope with the combined issues, trust for Social Networks, content and index poisoning in CDN? We will address the problems of Social Trust and File Sharing with an overlay level of trust model based on social activity and transactions, this can be an answer to enable users to increase the reliability of their online social life and also enhance the content distribution and create a better file sharing example. The aim of this research is to lower the risk of malicious activity on a given Social Network by applying a correlated trust model, to guarantee the validity of someone's identity, privacy and trustfulness in sharing content.

Governing the working population : knowledge, self and power in workplace health programs

This paper reports a case study of a workplace health programme in an international information technology company. Discourse analysis was used to identify how specific forms of knowledge create understandings of health and influence power relations between employee and organization. These forms of knowledge are shown to make employee health both visible and invisible in particular ways. Workplace health discourse encourages the employee to take responsibility for self-assessment and behaviour adjustment to become healthier employees. This is shown to be an ethical project which results in the alignment of personal and corporate goals.

Size and power properties of structural break unit root tests

In this article, we compare the small sample size and power properties of a newly developed endogenous structural break unit root test of Narayan and Popp (NP, 2010) with the existing two break unit root tests, namely the Lumsdaine and Papell (LP, 1997) and the Lee and Strazicich (LS, 2003) tests. In contrast to the widely used LP and LS tests, the NP test chooses the break date by maximizing the significance of the break dummy coefficient. Using Monte Carlo simulations, we show that the NP test has better size and high power, and identifies the structural breaks accurately. Power and size comparisons of the NP test with the LP and LS tests reveal that the NP test is significantly superior.

Design and analysis of efficient rectifiers for wireless power harvesting in DBS devices

This paper presents an analysis of optimum rectifier circuits for wireless energy harvesting in deep brain stimulation (DBS) devices. Since DBS demands compact and low power consumption devices, small, high conversion efficient, and high output voltage rectifiers need to be developed. The investigation that is presented in this paper is analytical and simulated based. Analysis on a variety of circuit configurations brings more evidence to improve the performance of rectifiers. Analytical parameters influencing the output DC voltage and the efficiency of the rectifiers are described. The operating frequency of the 915 MHz industrial, scientific and medical (ISM) radio band is used in this study. The maximum conversion efficiency of the LC matched half wave rectifier, the Greinacher voltage doubler, the Delon doubler, and the 2-stage voltage multiplier is obtained as 56.34%, 74.45%, 71.48%, and 31.44%, respectively, at the 30 dBm input power level. The corresponding maximum output DC voltages are 6.27 V, 16.83 V, 13.36 V, and 9.20 V. Thus the Greinacher voltage doubler is deemed as the best configuration according to the conversion efficiency and the output voltage measurements.

Characteristics and applications of energy storage system to power network - A review

Maintaining reliability and stability of a power systems in transmission and distribution level becomes a big challenge in present scenario. Grid operators are always responsible to maintain equilibrium between available power generation and demand of end users. Maintaining grid balance is a bigger issue, in case of any unexpected generation shortage or grid disturbance or integration of any renewable energy sources like wind and solar power in the energy mix. In order to compensate such imbalance and to facilitate more renewable energy sources with the grid, energy storage system (ESS) started to be playing an important role with the advancement of the state of the art technology. ESS can also help to get reduction in greenhouse gas (GHG) emission by means of integrating more renewable energy sources to the grid. There are various types of Energy Storage (ES) technologies which are being used in power systems network from large scale (above 50MW) to small scale (up to 100KW). Based on the characteristics, each storage technology has their own merits and demerits. This paper carried out extensive review study and verifies merits and demerits of each storage technology and identifies the suitable technology for the future. This paper also has conducted feasibility study with the aid of E-SelectTM tool for various ES technologies in applications point of view at different grid locations. This review study helps to evaluate feasible ES technology for a particular electrical application and also helps to develop smart hybrid storage system for grid applications in efficient way.

Modelling and power quality analysis of a grid-connected solar PV system

Increased concern about global warming coupled with the escalating demand of energy has driven the conventional power system to be more reliable one by integrating Renewable Energies (RE) in to grid. Over the recent years, integration of solar PV forming a gridconnected PV is considered as one of the most promisingtechnologies to the developed countries like Australia to meet the growing demand of energy. This rapid increase in grid connected photovoltaic (PV) systems has made the supply utilities concerned about the drastic effects that have to be considered on the distribution network in particular voltage fluctuations, harmonic distortions and the Power factor for sustainable power generation. However, irrespective of thefact that the utility grid can accommodate the variability of load or irregular solar irradiance, it is essential to study the impact of grid connected PV systems during higher penetration levels as the intermittent nature of solar PV adversely effects the grid characteristics in meeting the load demand. Hence, keeping this in track, this paper examines the grid-connected PV system considering a residential network of Geelong region (38◦.09' S and 144◦.21’ E) and explores the level of impacts considering summer load profile with a change in the level of integrations. Initially, a PV power system network model is developed in Matlab-Simulink environment and the simulations are carried out to explore the impacts of solar PV penetration at low voltage distribution network considering power quality (PQ) issues such as voltage fluctuations, harmonics distortion at different load conditions.

Unhealthy food, integrated marketing communication and power: a critical analysis

Public health advocates have repeatedly highlighted parallels between food marketing and childhood obesity. Yet existing literature has not explored the connection between the promotion of unhealthy foods and beverages, certain characteristics of integrated marketing communication (IMC) and the power of multinational food and beverage companies. This is problematic because IMC represents the dominant marketing paradigm in use today. This article draws on critical theory and literature from across public health, marketing, business and related fields. By focusing on macro-level antecedents and interactions, this discussion highlights a previously unarticulated dimension of the promotion of unhealthy foods and beverages to children and adolescents. In doing so, this discussion aims to generate greater recognition of the broader environmental circumstances and processes that surround food marketing tactics and their consequences for public health nutrition. This perspective will also contribute to an expanded understanding of unhealthy food marketing and its unintended consequences, among an audience of nutrition, public health and policy communities.

Inhibition of reactive oxygen species production ameliorates inflammation induced by influenza A viruses via upregulation of SOCS1 and SOCS3.

Highly pathogenic avian influenza virus infection is associated with severe mortality in both humans and poultry. The mechanisms of disease pathogenesis and immunity are poorly understood although recent evidence suggests that cytokine/chemokine dysregulation contributes to disease severity following H5N1 infection. Influenza A virus infection causes a rapid influx of inflammatory cells, resulting in increased reactive oxygen species production, cytokine expression, and acute lung injury. Proinflammatory stimuli are known to induce intracellular reactive oxygen species by activating NADPH oxidase activity. We therefore hypothesized that inhibition of this activity would restore host cytokine homeostasis following avian influenza virus infection. A panel of airway epithelial and immune cells from mammalian and avian species were infected with A/Puerto Rico/8/1934 H1N1 virus, low-pathogenicity avian influenza H5N3 virus (A/duck/Victoria/0305-2/2012), highly pathogenic avian influenza H5N1 virus (A/chicken/Vietnam/0008/2004), or low-pathogenicity avian influenza H7N9 virus (A/Anhui/1/2013). Quantitative real-time reverse transcriptase PCR showed that H5N1 and H7N9 viruses significantly stimulated cytokine (interleukin-6, beta interferon, CXCL10, and CCL5) production. Among the influenza-induced cytokines, CCL5 was identified as a potential marker for overactive immunity. Apocynin, a Nox2 inhibitor, inhibited influenza-induced cytokines and reactive oxygen species production, although viral replication was not significantly altered in vitro. Interestingly, apocynin treatment significantly increased influenza virus-induced mRNA and protein expression of SOCS1 and SOCS3, enhancing negative regulation of cytokine signaling. These findings suggest that apocynin or its derivatives (targeting host responses) could be used in combination with antiviral strategies (targeting viruses) as therapeutic agents to ameliorate disease severity in susceptible species.

Status, caste, and market in a changing Indian village

When social and economic conditions change dramatically, status hierarchies in place for hundreds of years can crumble as marketization destabilizes once rigid boundaries. This study examines such changes in symbolic power through an ethnographic study of a village in North India. Marketization and accompanying privatization do not create an independent sphere where only money matters, but due to a mix of new socioeconomic motives, they produce new social obligations, contests, and solidarities. These findings call into question the emphasis in consumer research on top-down class emulation as an essential characteristic of status hierarchies. This study offers insights into sharing as a means of enacting and reshaping symbolic power within a status hierarchy. A new order based on markets and consumption is disrupting the old order based on caste. As the old moral order dissolves, so do the old status hierarchies, obligations, dispositions, and norms of sharing that held the village together for centuries. In the microcosm of these gains and losses, we may see something of the broader social and economic changes taking place throughout India and other industrializing countries.

Efficient and effective change principles in active videogames

Active videogames have the potential to enhance population levels of physical activity but have not been successful in achieving this aim to date. This article considers a range of principles that may be important to the design of effective and efficient active videogames from diverse discipline areas, including behavioral sciences (health behavior change, motor learning, and serious games), business production (marketing and sales), and technology engineering and design (human–computer interaction/ergonomics and flow). Both direct and indirect pathways to impact on population levels of habitual physical activity are proposed, along with the concept of a game use lifecycle. Examples of current active and sedentary electronic games are used to understand how such principles may be applied. Furthermore, limitations of the current usage of theoretical principles are discussed. A suggested list of principles for best practice in active videogame design is proposed along with suggested research ideas to inform practice to enhance physical activity.

The positives and negatives of organizational politics: a qualitative study

The study aimed to develop a richer understanding of how employees perceive organizational politics in contemporary organizational contexts, and to identify whether organizational politics is described in both positive and negative terms. Design/methodology/approach: Individual in-depth interviews were conducted using Interpretative Phenomenological Analysis with 14 employees across three organizations. Findings: Participants’ perceptions of organizational politics were interpreted according to four levels: reactive, reluctant, strategic, and integrated. The four levels captured how individuals defined, described, and perceived outcomes of organizational politics. Definitions included organizational politics as destructive and manipulative (reactive), as a necessary evil (reluctant), as a useful strategy that helps get things done (strategic), and as central to organizational functioning and decision-making (integrated). Political behaviors were described in terms that correspond to five established bases of organizational power: connection power, information power, coercive power, positional power, and personal power. Descriptions of organizational politics encompassed positive and negative individual and organizational outcomes. Implications: Traditional negatively framed definitions of organizational politics need to be extended and elaborated. Definitions of organizational politics need to accommodate a range of understandings. Originality/value: Despite numerous calls for qualitative research regarding organizational politics, this is one of very few qualitative studies in this area. The proposed classifications of levels, definitions, and behaviors complement and extend existing conceptualizations of organizational politics. We contribute an understanding of organizational politics that is more balanced than existing negatively skewed conceptualizations and that will have implications for measurement and management of organizational politics.