Real-time information security incident management : a case study using the IS-CHEC technique

Information security recognised the human as the weakest link. Despite numerous international or sector-specific standards and frameworks, the information security community has not yet adopted formal mechanisms to manage human errors that cause information security breaches. Such techniques have been however established within the safety field where human reliability analysis (HRA) techniques are widely applied. In previous work we developed Information Security Core Human Error Causes (IS-CHEC) to fill this gap. This case study presents empirical research that uses IS-CHEC over a 12 month period within two participating public and private sector organisations in order to observe and understand how the implementation of the IS-CHEC information security HRA technique affected the respective organisations. The application of the IS-CHEC technique enabled the proportions of human error related information security incidents to be understood as well as the underlying causes of these incidents. The study captured the details of the incidents in terms of the most common underlying causes, selection of remedial and preventative measures, volumes of reported information security incidents, proportions of human error, common tasks undertaken at the time the incident occurred, as well as the perceptions of key individuals within the participating organisations through semi-structured interviews. The study confirmed in both cases that the vast majority of reported information security incidents relate to human error, and although the volumes of human error related incidents pertaining to both participating organisations fluctuated over the 12 month period, the proportions of human error remained consistently as the majority root cause

Sport fans' roles in value co-creation

Research question The sports industry has witnessed sustained growth. The cultural, symbolic and stakeholder-embedded nature of sport provides a dynamic setting for developing service research. In this context, an evolution in the logic of value creation can be observed; fans are no longer passive receivers of value but, instead, can be active value co-creators. The sport fan exhibits distinctive characteristics and an ability and willingness to integrate resources and co-produce value propositions, which necessitates an understanding of fan value co-creation. We answer one key research question: what is the role of fans in value co-creation in sports? We do so by conceptually exploring the processes through which sport fans co-create and provide value propositions. Research methods We use case exemplars to provide a base for the theoretical consideration of the role of sport fans in value co-creation. We verify and consolidate the service-dominant logic (SDL) in the sport context. However, due to the high level of abstraction of the SDL as a general theory, we utilize consumer culture theory (CCT) as a middle range theory (MRT) to bridge the gap between contextual descriptions of the role of fans and the SDL. Results and findings Fans evaluate, redefine and reposition value propositions in different sport settings. The three roles of assimilators, adaptors and authenticators in value co-creation are identified through five case exemplars. We extend the theoretical understanding of the processes through which sport fans co-create value. Implications Knowledge of the distinctive characteristics of sport fans and their roles in value co-creation will assist managers in developing effective marketing propositions. Our theoretical contribution will generate new lines of research in the field

Betweenness Centrality – Incremental and Faster

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Cooperative approaches for dymanic wireless charging of Electric Vehicles in a smart city

In this paper, a method of electric vehicles charging with the use of large truck/bus vehicles moving along national highways and provincial roads is proposed and described. The method relies on charging vehicles from trucks while moving either with plug in electric connection or by electromagnetic induction via loosely coupled coils. Open research challenges and several avenues or opportunities for future research on Electric Vehicles Charging are outlined. The proposed method overcomes the disadvantages of the so far known techniques. The advantages of this method compared to the so far proposed methods are a) economical, easy and safe procedure, b) increase of the energy transfer efficiency factor, c) minimization of the delay in vehicle movement during the charging procedure and d) reduction of the environmental contamination with CO2 or electromagnetic radiation. © 2014 IEEE

The Ground Effect and the Mirror Effect in small air gaps

In the present paper we investigate the Ground Effect of small rod-rod air gaps, in connection to the Mirror Effect of rod-plate air gaps. The Ground Effect is a phenomenon, which is observed due to the fact that in air gap arrangements one of the two electrodes is usually at earth potential (grounded). The Mirror Effect is valid in rod-plate air gaps when the plate's diameter is very big. The field distribution along the axis of the gaps is analyzed with the Finite Element Method. The maximum values of the field strength in the gap are recorded for the two different arrangements the one with one electrode grounded, and the other with symmetrical charging of the electrodes. The distribution of the field along the axis of the gap is strongly affected by the gap length, the geometry of the arrangement, and the electrode, chosen to be at earth potential (grounded). The Mirror Effect establishes equivalence between the rod-plate and rod-rod arrangements. It is resulted that the Ground Effect and the Mirror Effect influence the corona onset and the breakdown voltage of the air gaps analogically. It is intense in small air gaps, while the influence of the corona current appears in longer air gaps and overlaps the Ground Effect. The principle of action-reaction is valid

Optimization of corona effects in small air gaps stressed by DC voltages

In the present paper methods of minimizing or maximizing the values of the Corona onset voltage and the Corona current in small rod-plate air gaps are investigated. The geometry and the way of grounding and charging the electrodes, (Ground Effect), the gap length, the existence of barrier in the gap (Barrier Effect), and the conditions of the air in the gap, are some factors, which influence greatly the distribution of the electric field in the gap, and hence the above values. Combining experimental and simulation-theoretical work, it is resulted that: a) the electrode chosen to be ground, strongly influences the distribution of the field and hence the Corona onset voltage and the corona current in rod-plate air gaps. When the rod is grounded the value of the corona onset voltage is higher and the corona current is significantly smaller. b) A dielectric barrier, when placed in specific positions in the gap, increases the Corona onset voltage to a maximum value, and annihilates the Corona Current. © 2012 IEEE

The Ground Effect and the Mirror Effect in small air gaps

In the present paper we investigate the Ground Effect of small rod-rod air gaps, in connection to the Mirror Effect of rod-plate air gaps. The Ground Effect is a phenomenon, which is observed due to the fact that in air gap arrangements one of the two electrodes is usually at earth potential (grounded). The Mirror Effect is valid in rod-plate air gaps when the plate's diameter is very big. The field distribution along the axis of the gaps is analyzed with the Finite Element Method. The maximum values of the field strength in the gap are recorded for the two different arrangements the one with one electrode grounded, and the other with symmetrical charging of the electrodes. The distribution of the field along the axis of the gap is strongly affected by the gap length, the geometry of the arrangement, and the electrode, chosen to be at earth potential (grounded). The Mirror Effect establishes equivalence between the rod-plate and rod-rod arrangements. It is resulted that the Ground Effect and the Mirror Effect influence the corona onset and the breakdown voltage of the air gaps analogically. It is intense in small air gaps, while the influence of the corona current appears in longer air gaps and overlaps the Ground Effect. The principle of action-reaction is valid