Last 7 days     Results 41-60 of 3530.   1 2 3 4 5 6 7 8   Selfitis, selfie addiction, Twitteritis: Irresistible appeal of medical terminology for problematic behaviours in the digital ageStarcevic, Vladan; Billieux, Joël ; Schimmenti, Adrianoin Australian & New Zealand Journal of Psychiatry (in press)Behaviours that are performed compulsively and repetitively and are associated with certain negative consequences have been a conceptual challenge for psychopathology. They are usually labelled as ... [more ▼]Behaviours that are performed compulsively and repetitively and are associated with certain negative consequences have been a conceptual challenge for psychopathology. They are usually labelled as behavioural addictions, although this term has been vague, misused and applied to an exceptionally wide variety of activities (Starcevic, 2016). A similar trend to medicalise problematic behaviours has appeared more recently, with an emergence of ‘selfitis’ (Balakrishnan and Griffiths, in press). This article draws attention to these troublesome tendencies and aims to shed more light on their origin and implications. [less ▲]Detailed reference viewed: 39 (2 UL) Time for a Plot Twist: Beyond Confirmatory Approaches to Binge-Watching ResearchFlayelle, Maèva ; Maurage, Pierre; Vögele, Claus et alin Psychology of Popular Media Culture (in press)The advent of the digital age with its progress in digital technology has been associated in recent years with an increase in binge-watching (i.e., seeing multiple episodes of the same TV series in one ... [more ▼]The advent of the digital age with its progress in digital technology has been associated in recent years with an increase in binge-watching (i.e., seeing multiple episodes of the same TV series in one session). Binge-watching has now become the new normative way to consume TV shows. Nevertheless, along with its recent massive rise has come concerns about the associated mental and physical health outcomes. Currently available results suggest the potential harmfulness and even addictive nature of binge-watching. The psychological investigation of this behavior, however, is still in its infancy, with most studies using a confirmatory approach and assuming a priori its genuine addictive nature. In contrast, the current perspective paper argues the case for an exploratory approach as an initial step for conducting research on behaviors that − at first sight − look like addiction when applying a symptom-based approach. A qualitative understanding of the phenomenological characteristics of binge-watching as the foundation of an initial comprehensive discussion makes it possible to formulate hypotheses concerning its potentially addictive nature and to emphasize challenges and directions for future research. Here we propose an exploration of the dynamics of binge-watching behavior based on a model involving emotion regulation in the etiology and maintenance of problem binge-watching. [less ▲]Detailed reference viewed: 25 (1 UL) Effect of unmodelled tidal displacements in GPS and GLONASS coordinate time seriesAbraha, Kibrom Ebuy ; Teferle, Felix Norman ; Hunegnaw, Addisu et alin Geophysical Journal International (in press)This study demonstrates the effect of unmodelled (sub-)daily tidal displacement on GLONASS (GLObalnaya NAvigatsionnaya Sputnikovaya Sistema) coordinate time series in comparison with GPS (Global ... [more ▼]This study demonstrates the effect of unmodelled (sub-)daily tidal displacement on GLONASS (GLObalnaya NAvigatsionnaya Sputnikovaya Sistema) coordinate time series in comparison with GPS (Global Positioning System). More than two propagated periodic signals appear in GPS and GLONASS coordinate time series in the presence of an unmodelled M2 /O1 tidal displacements. The propagation mechanism of Stewart et al. (2005) explains well most of the periodic signals. At a fortnightly period, an unmodeled M2 tidal displacement propagates into two long-period signals at 13.6x (x is a positive integer) and 14.76 days for GPS, while only a significant propagated periodic signal at 14.76-day is discernible for GLONASS. Similarly, significant propagated periodic signals at 13.6x and 14.19 days for GPS and only at 14.19- day for GLONASS are evident as a result of an unmodeled O1 tidal displacement. However, an unmodeled Mf (long-period) results in a strong power of similar magnitude at 13.6x-day (∼13.66-day) for both GPS and GLONASS solutions. The appearance of different periodic signals but as a result of the same unmodelled tidal displacement is attributed to the differ- ent ground repeat periods of the constellations, which is one of the factors of the propagation mechanism from Stewart et al. (2005). The latter explains the reason why the 13.6x-day fort- nightly is present only for GPS solutions. Comparing the powers of the M2 aliased periodic signals at 13.6x-day and 14.76-day from a stacked spectra over all stations, the amplitude of the former is larger than the latter by an order of magnitude. The results of this study may infer that the 13.6x-day periodic signal in GPS/GNSS (Global Navigation Satellite System) derived products of the IGS (International GNSS Service) is a joint contribution of the propagation of unmodelled (sub-)daily tidal displacements and errors at longer periods with the former ap- pearing to contribute more. We also demonstrated that significant reduction of the propagated periodic signals can be achieved from combined-system solutions. [less ▲]Detailed reference viewed: 55 (19 UL) Quasitrivial semigroups: characterizations and enumerationsCouceiro, Miguel; Devillet, Jimmy ; Marichal, Jean-Luc in Semigroup Forum (in press)We investigate the class of quasitrivial semigroups and provide various characterizations of the subclass of quasitrivial and commutative semigroups as well as the subclass of quasitrivial and order ... [more ▼]We investigate the class of quasitrivial semigroups and provide various characterizations of the subclass of quasitrivial and commutative semigroups as well as the subclass of quasitrivial and order-preserving semigroups. We also determine explicitly the sizes of these classes when the semigroups are defined on finite sets. As a byproduct of these enumerations, we obtain several new integer sequences. [less ▲]Detailed reference viewed: 58 (22 UL) The Diffusion of Educational Ideas among International Organizations. An Event History Analysis of Lifelong Learning, 1990-2013Zapp, Mike ; Dahmen, Clarissa in Comparative Education Review (in press)Detailed reference viewed: 56 (6 UL) Academic writing across languages: multilingual and contrastive approaches in higher educationHuemer, Birgit ; Deroey, Katrien ; Lejot, Eve Book published by Böhlau (in press)In this book we explore how academic writing varies across languages in order to enrich concepts for teaching academic writing in multilingual environments. The contributions focus on teaching approaches ... [more ▼]In this book we explore how academic writing varies across languages in order to enrich concepts for teaching academic writing in multilingual environments. The contributions focus on teaching approaches, linguistic features and writing practices in multilingual contexts. It aims to discuss how these findings could be applied in order to develop multilingual approaches for teaching academic writing at the university. [less ▲]Detailed reference viewed: 17 (1 UL) Affective impairments in binge drinking: Investigation through emotional facial expression decodingLannoy, Séverine; Dormal, Valérie; Brion, Mélanie et alin Comprehensive Psychiatry (in press)Objective: Binge drinking, an excessive alcohol consumption pattern frequently observed in young people, is known to be associated with psychological and cerebral deficits. While cognitive dysfunctions ... [more ▼]Objective: Binge drinking, an excessive alcohol consumption pattern frequently observed in young people, is known to be associated with psychological and cerebral deficits. While cognitive dysfunctions have been widely investigated, emotional abilities have scarcely been explored. Such an exploration would however offer a more exhaustive understanding of the deficits associated with binge drinking, as well as of the possible transition towards alcohol-dependence. Methods: 46 young adults (23 binge drinkers, 12 women; 23 control participants, 12 women) were recruited among university students. They performed an emotional recognition task consisting of the visual decoding of six basic emotions (i.e. anger, contempt, disgust, fear, happiness, and sadness). Accuracy scores and detection thresholds were collected for each emotion. Results: Binge drinkers showed lower performance than control participants for the decoding of all emotions and increased detection thresholds, this later reflecting less ability to capture an emotion. Binge drinking is thus associated with a need for higher emotional intensity to perform correct detection. Moreover, these emotional difficulties appear specifically related to alcohol consumption. Conclusion: These findings reinforce previous experimental evidence of altered emotional processing among binge drinkers, and extend these results for various emotional contents. They support the hypothesis of a continuum between binge drinking and alcohol-dependence, in which massive emotional impairments have been documented. Indeed, these impairments could be involved in the onset and maintenance of excessive alcohol consumption, notably through the established relationship between emotional deficits and social distress. [less ▲]Detailed reference viewed: 26 (1 UL) Random or Evolutionary Search for Object-Oriented Test Suite Generation?Shamshiri; Rojas; Gazzola et alin SOFTWARE TESTING, VERIFICATION AND RELIABILITY (in press)An important aim in software testing is constructing a test suite with high structural code coverage – that is, ensuring that most if not all of the code under test has been executed by the test cases ... [more ▼]An important aim in software testing is constructing a test suite with high structural code coverage – that is, ensuring that most if not all of the code under test has been executed by the test cases comprising the test suite. Several search-based techniques have proved successful at automatically generating tests that achieve high coverage. However, despite the well-established arguments behind using evolutionary search algorithms (e.g., genetic algorithms) in preference to random search, it remains an open question whether the benefits can actually be observed in practice when generating unit test suites for object-oriented classes. In this paper, we report an empirical study on the effects of using evolutionary algorithms (including a genetic algorithm and chemical reaction optimization) to generate test suites, compared with generating test suites incrementally with random search. We apply the EVOSUITE unit test suite generator to 1,000 classes randomly selected from the SF110 corpus of open source projects. Surprisingly, the results show that the difference is much smaller than one might expect: While evolutionary search covers more branches of the type where standard fitness functions provide guidance, we observed that, in practice, the vast majority of branches do not provide any guidance to the search. These results suggest that, although evolutionary algorithms are more effective at covering complex branches, a random search may suffice to achieve high coverage of most object-oriented classes. [less ▲]Detailed reference viewed: 16 (0 UL) Décisions fiscales anticipées et confiance légitime - État des lieux et retour sur la notion d’opposabilitéChaouche, Fatima in Livre Jubilaire IFA Luxembourg (in press)Detailed reference viewed: 41 (5 UL) Efficacy of metacognitive therapy in improving mental health: A meta-analysis of single-case studiesRochat, Lucien; Manolov, Rumen; Billieux, Joël in Journal of Clinical Psychology (in press)Context. Metacognitive therapy and one of its treatment components, the attention training technique are increasingly being delivered to improve mental health. Objective. To examine the efficacy of ... [more ▼]Context. Metacognitive therapy and one of its treatment components, the attention training technique are increasingly being delivered to improve mental health. Objective. To examine the efficacy of metacognitive therapy and/or attention training technique on mental health outcomes from single-case studies. Methods. Fourteen studies (53 patients) were included. The d-statistic for multiple baseline data and the percentage change index were used to compute the effect sizes. Results. Metacognitive therapy has a large effect on depression, anxiety, other psychopathological symptoms, and all outcomes together. Effect sizes were significantly moderated by the number of sessions, the severity and duration of symptoms, and patient gender, but not by study quality or attention training technique when used as a stand-alone treatment. At the follow-up, 77.36% of the individuals were considered recovered or had maintained improvement. Conclusion. Metacognitive therapy and attention training technique strongly contribute to improving mental health outcomes. This study effectively informs evidence-based practice in the clinical milieu. [less ▲]Detailed reference viewed: 85 (2 UL) Lessons from social network analysis to Industry 4.0Omar, Yamila ; Minoufekr, Meysam ; Plapper, Peter in Manufacturing Letters (in press)With the advent of Industry 4.0, a growing number of sensors within modern production lines generate high volumes of data. This data can be used to optimize the manufacturing industry in terms of complex ... [more ▼]With the advent of Industry 4.0, a growing number of sensors within modern production lines generate high volumes of data. This data can be used to optimize the manufacturing industry in terms of complex network topology metrics commonly used in the analysis of social and communication networks. In this work, several such metrics are presented along with their appropriate interpretation in the field of manufacturing. Furthermore, the assumptions under which such metrics are defined are assessed in order to determine their suitability. Finally, their potential application to identify performance limiting resources, allocate maintenance resources and guarantee quality assurance are discussed. [less ▲]Detailed reference viewed: 48 (3 UL) Further exploration of the SUPPS-P Impulsive Behavior Scale’s factor structure: Evidence from a large Hungarian sampleZsila, Ágnes; Bőthe, Beáta; Demetrovics, Zsolt et alin Current Psychology (in press)Background: Impulsivity is a multidimensional construct playing a pervasive role in psychiatry and neuropsychology. Lynam et al. (2006) have developed the 59-item UPPS-P Impulsive Behavior Scale, which ... [more ▼]Background: Impulsivity is a multidimensional construct playing a pervasive role in psychiatry and neuropsychology. Lynam et al. (2006) have developed the 59-item UPPS-P Impulsive Behavior Scale, which assesses five distinct impulsivity dimensions: positive urgency, negative urgency, lack of perseverance, lack of premeditation, and sensation seeking. The short, 20-item version of the UPPS-P (SUPPS-P; Billieux et al. 2012) has been developed and adapted into several languages, including English, French, Italian, Spanish, and Arabic. The aim of the present study was to test four theoretical models of the SUPPS-P in a large sample of Hungarian adults. Methods: A total of 15,703 participants (64.76% male; Mage = 33.42 years, SD = 11.06) completed the SUPPS-P using an online questionnaire. Results: Confirmatory factor analyses corroborated the first-order five-factor model of impulsivity and a hierarchical model representing three higher-order constructs (urgency, lack of conscientiousness, sensation seeking), whereas the one-factor and three-factor model were not supported. The factor structure of the SUPPS-P preserved the original, theory-driven structure of the UPPS-P model and this instrument demonstrated good internal consistency. Hypersexual behavior consequences were positively associated with most SUPPS-P components, thus criterion validity was also supported. Conclusion: The SUPPS-P had strong psychometric properties that reflected the theoretical structure of the original UPPS-P model, thus it constitutes a theoretically grounded and time saving multidimensional instrument for assessing impulsivity. [less ▲]Detailed reference viewed: 31 (0 UL) The Politics of Church Land Administration: the Case of the Orthodox Patriarchate of Jerusalem in Ottoman and Mandatory PalestinePapastathis, Konstantinos ; Kark, Ruthin Byzantine & Modern Greek Studies (in press)Detailed reference viewed: 30 (0 UL) An Investigation of Compression Techniques to Speed up Mutation TestingZhu; Panichella, Annibale ; Zaidman, Andyin 11th IEEE Conference on Software Testing, Validation and Verification, 2018 (in press)Mutation testing is widely considered as a high-end test coverage criterion due to the vast number of mutants it generates. Although many efforts have been made to reduce the computational cost of ... [more ▼]Mutation testing is widely considered as a high-end test coverage criterion due to the vast number of mutants it generates. Although many efforts have been made to reduce the computational cost of mutation testing, in practice, the scalability issue remains. In this paper, we explore whether we can use compression techniques to improve the efficiency of strong mutation based on weak mutation information. Our investigation is centred around six mutation compression strategies that we have devised. More specifically, we adopt overlapped grouping and Formal Concept Analysis (FCA) to cluster mutants and test cases based on the reachability (code covergae) and necessity (weak mutation) conditions. Moreover, we leverage mutation knowledge (mutation locations and mutation operator types) during compression. To evaluate our method, we conducted a study on 20 open source Java projects using manually written tests. We also compare our method with pure random sampling and weak mutation. The overall results show that mutant compression techniques are a better choice than random sampling and weak mutation in practice: they can effectively speed up strong mutation 6.3 to 94.3 times with an accuracy of >90%. [less ▲]Detailed reference viewed: 40 (13 UL) A generalization of the concept of distance based on the simplex inequalityKiss, Gergely ; Marichal, Jean-Luc ; Teheux, Bruno in Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry (in press)We introduce and discuss the concept of \emph{$n$-distance}, a generalization to $n$ elements of the classical notion of distance obtained by replacing the triangle inequality with the so-called simplex ... [more ▼]We introduce and discuss the concept of \emph{$n$-distance}, a generalization to $n$ elements of the classical notion of distance obtained by replacing the triangle inequality with the so-called simplex inequality $d(x_1, \ldots, x_n)~\leq~K\, \sum_{i=1}^n d(x_1, \ldots, x_n)_i^z{\,}, \qquad x_1, \ldots, x_n, z \in X,$ where $K=1$. Here $d(x_1,\ldots,x_n)_i^z$ is obtained from the function $d(x_1,\ldots,x_n)$ by setting its $i$th variable to $z$. We provide several examples of $n$-distances, and for each of them we investigate the infimum of the set of real numbers $K\in\left]0,1\right]$ for which the inequality above holds. We also introduce a generalization of the concept of $n$-distance obtained by replacing in the simplex inequality the sum function with an arbitrary symmetric function. [less ▲]Detailed reference viewed: 48 (14 UL) Partizipation in Großschutzgebieten - untersucht am Beispiel der Beteiligung an den Workshops zur Erstellung des Rahmenkonzeptes des Biosphärenreservates Bliesgau 2014Nienaber, Birte in Weber, Friedericke; Weber, Florian; Jenal, Corinna (Eds.) Wohin des Weges? Regionalentwicklung in Großschutzgebieten (in press)In 2014 a process of public participation was initiated in order to produce a framework concept for the future configuration of the “Biosphere Bliesgau”. This paper presents characteristics of ... [more ▼]In 2014 a process of public participation was initiated in order to produce a framework concept for the future configuration of the “Biosphere Bliesgau”. This paper presents characteristics of participation, both in general and in large-scale protected areas in particular, and discusses what various forms of participation (ranging from pure information as non-participation to bottom-up partnerships as the strongest form of participation) are possible. The empirical-analytical section of the paper investigates the 2014 process of participation in Biosphere Bliesgau, using publically available protocols and interviews. It can be seen that the top-down process – e. g. involving concrete agreements between individuals or groups – involves the selection of participants – intended or otherwise – and that the highest level of participation could therefore not be achieved. [less ▲]Detailed reference viewed: 23 (1 UL) Security of Distance−Bounding: A SurveyGildas, Avoine; Muhammed, Ali Bingöl; Ioana, Boureanu et alin ACM Computing Surveys (in press)Distance bounding protocols allow a verifier to both authenticate a prover and evaluate whether the latter is located in his vicinity. These protocols are of particular interest in contactless systems, e ... [more ▼]Distance bounding protocols allow a verifier to both authenticate a prover and evaluate whether the latter is located in his vicinity. These protocols are of particular interest in contactless systems, e.g. electronic payment or access control systems, which are vulnerable to distance-based frauds. This survey analyzes and compares in a unified manner many existing distance bounding protocols with respect to several key security and complexity features. [less ▲]Detailed reference viewed: 29 (0 UL) New Directions in Attack Tree Research: Catching up with Industrial NeedsGadyatskaya, Olga ; Trujillo Rasua, Rolando in Mauw, Sjouke (Ed.) Proceedings of the 4th International Workshop on Graphical Models for Security (in press)Attack trees provide a systematic way of characterizing diverse system threats. Their strengths arise from the combination of an intuitive representation of possible attacks and availability of formal ... [more ▼]Attack trees provide a systematic way of characterizing diverse system threats. Their strengths arise from the combination of an intuitive representation of possible attacks and availability of formal mathematical frameworks for analyzing them in a qualitative or a quantitative manner. Indeed, the mathematical frameworks have become a large focus of attack tree research. However, practical applications of attack trees in industry largely remain a tedious and error-prone exercise. Recent research directions in attack trees, such as attack tree generation, attempt to close this gap and to improve the attack tree state-of-thepractice. In this position paper we outline the recurrent challenges in manual tree design within industry, and we overview the recent research results in attack trees that help the practitioners. For the challenges that have not yet been addressed by the community, we propose new promising research directions. [less ▲]Detailed reference viewed: 47 (2 UL) Pointwise regularity of parameterized affine zipper fractal curves fractal curvesBárány, Balázs; Kiss, Gergely ; Kolossváry, Istvánin Nonlinearity (in press)We study the pointwise regularity of zipper fractal curves generated by affine mappings. Under the assumption of dominated splitting of index-1, we calculate the Hausdorff dimension of the level sets of ... [more ▼]We study the pointwise regularity of zipper fractal curves generated by affine mappings. Under the assumption of dominated splitting of index-1, we calculate the Hausdorff dimension of the level sets of the pointwise Hölder exponent for a subinterval of the spectrum. We give an equivalent characterization for the existence of regular pointwise Hölder exponent for Lebesgue almost every point. In this case, we extend the multifractal analysis to the full spectrum. In particular, we apply our results for de Rham’s curve. [less ▲]Detailed reference viewed: 17 (2 UL) Intertemporal material deprivation: a proposal and an application to EU countriesD'Ambrosio, Conchita ; Bossert, Walterin Dasgupta, Indraneel; Mitra, Manipushpak (Eds.) Deprivation, Inequality and Polarization: Essays in Honour of Satya Ranjan Chakravarty (in press)This paper analyzes the effects of the inclusion of past experiences in measuring current material deprivation. The method followed generalizes the proposal of Bossert, Ceriani, Chakravarty and D'Ambrosio ... [more ▼]This paper analyzes the effects of the inclusion of past experiences in measuring current material deprivation. The method followed generalizes the proposal of Bossert, Ceriani, Chakravarty and D'Ambrosio (2014) by adapting the class of indices on the measurement of poverty over time of Dutta, Roope and Zank (2013). An application to the analysis of material deprivation within EU countries is then provided. Following the path of material deprivation experienced by each individual over time yields a picture which differs from that in the annual results. Since the measurement of material deprivation is used by the EU member states and the European Commission to monitor national and EU progress in the fight against poverty and social exclusion, the results suggest that time cannot be neglected. Countries should not only be compared based on their year-by-year results, but additional information is gained by following individuals over time and producing an aggregate measure once dynamic considerations are taken into consideration. [less ▲]Detailed reference viewed: 36 (1 UL)