Search results for "internet"
showing 10 items of 2589 documents
"Table 16" of "Measurement of the inclusive W+- and Z/gamma cross sections in the electron and muon decay channels in pp collisions at sqrt(s) = 7 Te…
2014
Factors to correct the measured cross-sections for different treatments of photon final-state radiation (QED FSR) to: - dressed leptons, recombined with FSR photons in a cone of DeltaR < 0.1 and - bare leptons, defined after FSR. These correction factors are found to be (pseudo)-rapidity independent.
Trusted dynamic storage for dunbar-based P2P online social networks
2014
Online Social Networks (OSNs) are becoming more and more popular in today's Internet. Distributed Online Social Networks (DOSNs), are OSNs which do not exploit a central server for storing users' data and enable users to have more control on their profile content, ensuring a higher level of privacy. The main challenge of DOSNs comes from guaranteeing availability of the data when the data owner is offline. In this paper we propose a new P2P dynamic approach to the problem of data persistence in DOSNs. By following Dunbar's approach, our system stores the data of a user only on a restricted number of friends which have regular contacts with him/her. Users in this set are chosen by considerin…
Maksājumu karšu pieņemšana kā uzņēmumu ienākumu palielināšanas instruments
2018
Diplomdarba tēma ir „MAKSĀJUMU KARŠU PIEŅEMŠANA KĀ UZŅĒMUMU IENĀKUMU PALIELINĀŠANAS INSTRUMENTS”. Diplomdarba mērķis: Izanalizēt maksājumu karšu pieņemšanas ietekmi uz uzņēmuma ienākumu palielināšanu, kā rezultātā izvirzīt priekšlikumus uzņēmumu finanšu rādītāju celšanai. Lai sasniegtu mērķi tika izvirzīti sekojoši uzdevumi: 1.Izpētīt maksājumu karšu un sistēmu attīstības vēsturi; 2.Izpētīt starptautiskās tirdzniecības teorijas un vēsturi; 3.Analizēt Latvijas banku piedāvājumu maksājumu karšu pieņemšanas jomā; 4.Izanalizēt iedzīvotāju maksāšanas paradumus Latvijā un ārzemēs. Diplomdarbā tiek apskatītas uzņēmumu raksturīgākās problēmas maksājumu pieņemšanā, un izstrādāti priekšlikumi uzņēmum…
Adolescents’ online communication and well-being : Findings from the 2018 health behavior in school-aged children (HBSC) study
2022
Background: Digital transformation has influenced all areas of adolescents’ lives, including the ways adolescents maintain friendships. Interpersonal communication is one of the most common activities while online. Online communication may provide adolescents with opportunities to expand their social contacts, but these encounters can be risky, especially when the communication is with unknown people on the internet. This study examined the associations between different forms of online communication behavior and well-being. Materials and methods: Data were collected from Finnish adolescents as part of the Health Behavior in School-Aged Children (HBSC) study in 2018. The participants were 3…
Decentralized Lightweight Group Key Management for Dynamic Access Control in IoT Environments
2020
Rapid growth of Internet of Things (IoT) devices dealing with sensitive data has led to the emergence of new access control technologies in order to maintain this data safe from unauthorized use. In particular, a dynamic IoT environment, characterized by a high signaling overhead caused by subscribers' mobility, presents a significant concern to ensure secure data distribution to legitimate subscribers. Hence, for such dynamic environments, group key management (GKM) represents the fundamental mechanism for managing the dissemination of keys for access control and secure data distribution. However, existing access control schemes based on GKM and dedicated to IoT are mainly based on ce…
Letter Throughput and Delay Analysis of the Ideal Window
1999
We consider the problem of random access communications over a time slotted channel with feedback of infinitely multiplicity at the beginning of each collision resolution interval (CRI), i.e., users know via instantaneous feedback the number of users involved in that collision. Once this is known, the resolution algorithm (CRA) operates with binary (successful / non successful, s/ns) feedback. The analysis of this simple full feedback sensing window random access algorithm, named ideal window stabilized ALOHA, (IWSA), algorithm, provides a throughput of 0.5052 packets/slot, Its delay is also analyzed and compared with similar algorithms.
Google matrix analysis of worldwide football mercato
2018
[EN] The worldwide football transfer market is analyzed as a directed complex network: the football clubs are the network nodes and the directed edges are weighted by the total amount of money transferred from a club to another. The Google matrix description allows to treat every club independently of their richness and allows to measure for a given club the efficiency of player sales and player acquisitions. The PageRank algorithm, developed initially for the World Wide Web, naturally characterizes the ability of a club to import players. The CheiRank algorithm, also developed to analyze large scale directed complex networks, characterizes the ability of a club to export players. The analy…
Mapping palliative care provision in European prisons
2021
ObjectivesPrison populations around the world are ageing and numbers are rising, leading to greater demand for palliative care for prisoners approaching the end of life. This paper reports a survey that was undertaken by the European Association for Palliative Care Task Force on mapping palliative care provision for prisoners in Europe. The Task Force was established to begin to address the gap in research knowledge by exploring prison systems and care provision across different countries.MethodsThe survey, developed by the Task Force Steering Committee, consisted of 40 questions in six sections. It was completed through online searches; only data that were publicly available on the interne…
Parallel and scalable short-read alignment on multi-core clusters using UPC++
2016
[Abstract]: The growth of next-generation sequencing (NGS) datasets poses a challenge to the alignment of reads to reference genomes in terms of alignment quality and execution speed. Some available aligners have been shown to obtain high quality mappings at the expense of long execution times. Finding fast yet accurate software solutions is of high importance to research, since availability and size of NGS datasets continue to increase. In this work we present an efficient parallelization approach for NGS short-read alignment on multi-core clusters. Our approach takes advantage of a distributed shared memory programming model based on the new UPC++ language. Experimental results using the …
Can individuals’ neutralization techniques be overcome? A field experiment on password policy
2020
Individuals’ lack of adherence to password security policy is a persistent problem for organizations. This problem is especially worrisome because passwords remain the primary authentication mechanism for information systems, and the number of passwords has been increasing. For these reasons, determining methods to improve individuals’ adherence to password-security policies constitutes an important issue for organizations. Extant research has shown that individuals use neutralization techniques, i.e., types of rationalizations, to disregard organizational information-security policies. What has not been determined from extant information security research is whether these neutralizations c…