Structural changes in the European natural gas market such as liberalization, increasing domestic demand, and increasing import dependency have triggered new attempts to model these markets accurately. In this paper, we propose an exhaustive model of the European natural gas supply including the possibility of strategic behaviour of the agents along the value-added chain. We structure it as a t...

The effect of increasing inter-channel crosstalk in multichannel reproduction is investigated with auditory model simulations. A standard auditory model is used to estimate the perceptions of listeners in multichannel listening with crosstalk. ITD and ILD cue values are computed for three different loudspeaker setups. The crosstalk is varied between -14 dB and -38 dB. The results show that when...

Objective: The problems with internet usage is a significant problem regardless of social status and in almost all age groups. Internet addiction adolescents considered to be the most important risk This study was conducted determine correlation depressive symptoms among secondary school students. Method: research at two public schools Istanbul during 2015-2016 academic year. Ethics committee a...

Wireless Internet services such as mobile Web applications promise an enormous market potential. The field is characterized by extreme time-to-market pressure and insufficient knowledge about development procedures and technical constraints. This results in insufficient guidance for project managers and software developers on selecting appropriate development processes, techniques, methods and ...

Designs for high availability using redundant subsystems rely on the independence of replicated subsystems to work. However, increasing prevalence of multiple administrative domains in distributed systems obscures dependency information. In this paper, we propose a new technique to detect hidden shared dependencies. We utilize the insight that shared resources often give rise to covert channels...

This paper presents a multidimensional Dependency Grammar (DG), which decouples the dependency tree from word order, such that surface ordering is not determined by traversing the dependency tree. We develop the notion of a word order domain structure, which is linked but structurally dissimilar to the syntactic dependency tree. We then discuss the implementation of such a DG using constructs f...

The objectives of this study were to compare the personality profiles of adolescent males with and without Internet addiction disorder (IAD), and to determine if IAD is associated with specific parental rearing behaviors. A total of 304 subjects (204 IAD positive and 100 IAD negative controls) completed three instruments: Symptom Checklist-90-revision (SCL-90-R), Eysenck Personality Questionnai...

Packet losses are commonplace over the Internet, and can severely affect the quality of delay sensitive multimedia applications. In the current Internet architecture it is up to the application to react to the perceived congestion level in the network. The ability of the application to react is enhanced by the availability of simple and efficient loss models. Traditionally, Markov chain models ...

In the modern technological world, with the increasing dependency on Internet the security threats are on the rise. Distributed Denial of Service (DDoS) attack is one of the biggest threats. The attackers tend to exhaust the network resources, while ingeniously hiding their identity, making the defense process extremely difficult. Many researchers have proposed various solutions to traceback th...

OBJECTIVES To examine the level of activity in online discussion forums for chronic fatigue syndrome/myalgic encephalopathy (CFS/ME) compared to other disorders. We hypothesized the level of activity to be higher in CFS/ME online discussion forums. DESIGN Observational study SETTING Norway, which has more than 80% household coverage in internet access, September 2009 PARTICIPANTS Twelve N...