Recovery fairness and congestion control mechanisms in RPR networks

The paper describes fundamental features of RPR (Resilient Packet Ring - IEEE 802.17 standard). It focuses on proposals how to improve fairness mechanism and to increase network efficiency in state of congestion. Recovery mechanisms are also discussed, with presented analytical and simulation results. The goals of paper are threefold. At first, we show RPR main features and describe its current status. Secondly, we present main recovery and resilience features of RPR and propose solutions for improving both fairness and congestion control. Finally, a new concept, the enhanced hold-off timer (EHOT) is introduced improving recovery actions in multilayer networks. Some simulation results are presented in order to illustrate advantages of proposed solution.Postprint (published version

p-Cycle configuration possibilities over DRDA networks

A resilience analysis of protection cycles (p-cycle) configurations for Double Rings with Dual Attachment (DRDAs) architectures is presented in this work. DRDAs are composed of two rings with corresponding nodes connected by two separated links. There are several possible configurations of p-cycles, which may be used in DRDAs for improving link or node protection upon link failure. The values of the parameters Mean Time To Failure and Mean Time To Disconnection are analysed in the paper to show the best choice of p-cycles in DRDAs architectures.This work was performed under contract 11.11.230.018

An Automated Analysis of Homocoupling Defects Using MALDI-MS and Open-Source Computer Software

This work was supported by the Polish National Science Centre Grant No. 2021/41/B/ST6/03526. The authors also acknowledge the HORIZON-WIDERA-2022 Grant BioGeMT (ID:101086768) and the FWO Vlaanderen for continuing financial support (Ph.D. Grants 1S99620N and 1S50822N, MALDI-ToF project I006320N, Scientific Research Community "Supramolecular Chemistry and Materials" - W000620N)

Youth and the Sociability of "Vaping"

This article examines the contemporary and evolving social ritual of vaping (also known as the use and consumption of e-cigarettes). This novel research finds a typology of users in a heterogeneous youth market and shows how the introduction of this new practice challenges existing ritual boundaries. Previous research has focused on the de-marketing of tobacco and smoking cessation. Here, Virtuous, Dynamic, Vulnerable and Invisible Vapers are identified with each demonstrating differing levels of emotional engagement and characteristics of vaping behaviors. Utilizing Collins’ theory of interaction rituals as a lens, this qualitative study explores the sociability of vaping practices to gain a deeper understanding of the enduring appeal of vaping and the subsequent consequences for youth ‘smoking’ behaviors. While some vapers advocate the health benefits of this relatively new practice, the use of e-cigarettes is also used as a form of resistance as well as mechanism for misbehavior

Evaluating the Effectiveness of an Autism-Specific Workplace Tool for Employers: A Randomised Controlled Trial

A randomised controlled trial evaluated the effectiveness of the Integrated Employment Success Tool (IEST™) in improving employers’ self-efficacy in modifying the workplace for individuals on the autism spectrum. Employers (N = 84) were randomised to the IEST™ or support as usual groups. Measurements of self-efficacy, knowledge and attitudes towards disability in the workplace were obtained at baseline and post-test. Results revealed a significant improvement in self-efficacy within the IEST™ group between baseline and post-test (p = 0.016). At post-test, there were no significant differences between groups in relation to self-efficacy in implementing autism-specific workplace modifications and employer attitudes towards disability in the workplace. Given the lack of significant outcomes, further research is needed to determine the effectiveness of the IEST™ for employers

Assessment of economic management of overlay traffic: Methodology and results

Overlay applications generate huge amounts of traffic in the Internet, which determines a problem for Internet Service Providers, since it results in high charges for inter-domain traffic. Traditional traffic management techniques cannot deal successfully with overlay traffic. An incentive-based approach that employs economic concepts and mechanisms is required in order to deal with the overlay traffic in a way that is mutually beneficial for all stakeholders of the Future Internet. This "TripleWin" situation is the target of Economic Traffic Management (ETM). A wide variety of techniques are employed by ETM for optimizing overlay traffic management considering performance requirements of overlay and underlay networks together with cost implications for ISPs. However, the assessment of ETM requires an innovative methodology. In this article this methodology is described and major results are presented as obtained accordingly from the evaluation of different ETM mechanisms