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See detailWhere the mind cannot dare: a case of addictive use of online pornography and its relationship with childhood trauma.
Wéry; Schimmenti, Adriano; Karila, Laurent et al

in Journal of sex & marital therapy (in press)

Dysfunctional use of cybersex has often been conceptualized as a 'behavioral addiction' sharing common traits with substance addiction. We describe the case of a treatment-seeking man, who displayed ... [more ▼]

Dysfunctional use of cybersex has often been conceptualized as a 'behavioral addiction' sharing common traits with substance addiction. We describe the case of a treatment-seeking man, who displayed addictive use of pornography. The case is presented from two perspectives: (1) a symptom-based approach inspired by the addiction model of excessive sexual behaviors and (2) a process-based approach aimed to identify the psychological processes and risk factors that may foster the development of addiction-like symptoms. This article shows how case conceptualization according to a process-based approach is likely to result in psychological intervention that targets the specific processes and risk factors involved in addictive cybersex use. [less ▲]

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See detailA Natural Language Programming Approach for Requirements-based Security Testing
Mai, Xuan Phu UL; Pastore, Fabrizio UL; Göknil, Arda UL et al

in Mai, Xuan Phu; Pastore, Fabrizio; Göknil, Arda (Eds.) et al A Natural Language Programming Approach for Requirements-based Security Testing (in press)

To facilitate communication among stakeholders, software security requirements are typically written in natural language and capture both positive requirements (i.e., what the system is supposed to do to ... [more ▼]

To facilitate communication among stakeholders, software security requirements are typically written in natural language and capture both positive requirements (i.e., what the system is supposed to do to ensure security) and negative requirements (i.e., undesirable behavior undermining security). In this paper, we tackle the problem of automatically generat- ing executable security test cases from security requirements in natural language (NL). More precisely, since existing approaches for the generation of test cases from NL requirements verify only positive requirements, we focus on the problem of generating test cases from negative requirements. We propose, apply and assess Misuse Case Programming (MCP), an approach that automatically generates security test cases from misuse case specifications (i.e., use case specifications capturing the behavior of malicious users). MCP relies on natural language processing techniques to extract the concepts (e.g., inputs and activities) appearing in requirements specifications and generates executable test cases by matching the extracted concepts to the members of a provided test driver API. MCP has been evaluated in an industrial case study, which provides initial evidence of the feasibility and benefits of the approach. [less ▲]

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See detailPrevalence and Correlates of Problematic Online Gaming: a Systematic Review of the Evidence Published in Chinese
Long, Jiang; Liu, Tieqiao; Liu, Yueheng et al

in Current Addiction Reports (in press)

Purpose of Review With the ongoing debate about whether problematic online gaming (POG) constitutes a genuine mental disorder, it is important for all available evidence in the field to be accessible. In ... [more ▼]

Purpose of Review With the ongoing debate about whether problematic online gaming (POG) constitutes a genuine mental disorder, it is important for all available evidence in the field to be accessible. In this systematic review, we summarize the numerous results related to POG published in Chinese in order to make them more accessible to the international community. Recent Findings We identified 36 relevant studies published in Chinese (7 epidemiological, 21 related to psychological factors, and 8 related to neurocognitive exploration, involving 362,328 participants in total). According to the literature, the prevalence rates of POG in China range from 3.5 to 17%, which is higher than those reported worldwide. Overall, the data published in Chinese are consistent with the international literature. Some distinctive findings emerged, however, in particular in relation to familial, scholastic, and social factors; cognitive impairments; and functional changes in neural circuits. Summary This review is the first to render available articles on POG in Chinese for the international community, which could contribute to the current debate on the status of POG as a genuine mental health condition. Crucially, findings from the Chinese literature often resulted from studies conducted on large random or clinical samples. This is important because a repeated criticism about the recognition of POG as a genuine disorder is the fact that the evidence-based results rely heavily on convenience samples of nonclinical participants. [less ▲]

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See detailAssessing binge-watching behaviors: Development and validation of the “Watching TV Series Motives” and “Binge-Watching Engagement and Symptoms” questionnaires
Flayelle, Maèva UL; Canale, Natale; Vögele, Claus UL et al

in Computers in Human Behavior (in press)

The widespread practice of binge-watching (i.e. watching multiple episodes of a TV series in one session) recently generated concerns about associated negative outcomes. Its psychological investigation ... [more ▼]

The widespread practice of binge-watching (i.e. watching multiple episodes of a TV series in one session) recently generated concerns about associated negative outcomes. Its psychological investigation, however, remains fragmentary. Based on the previous phenomenological investigation of TV series watching, we developed and validated two original assessment instruments, assessing TV series watching motives and binge-watching engagement and symptoms, respectively. Preliminary items were created for each questionnaire, and a focus group with TV series viewers was conducted and analyzed to generate the final instruments. The questionnaires were then administered via an online survey (N=6556), together with complementary measures of affect, problematic Internet use and substance use. Exploratory and confirmatory factor analyses, along with correlational analyses, were performed to examine both structural and external validity of the scales. The factorial analyses resulted in a 4-factor model (i.e. emotional enhancement, enrichment, coping-escapism and social) for the Watching TV Series Motives Questionnaire (WTSMQ), and in a 7-factor model (i.e. engagement, positive emotions, desire-savoring, pleasure preservation, binge-watching, dependency and loss of control) for the Binge-Watching Engagement and Symptoms Questionnaire (BWESQ). The results suggest good psychometric properties for both scales. The current study thus provides theoretically-driven and psychometrically sound instruments for further research on binge-watching behaviors [less ▲]

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See detailInternationale Besteuerung der digitalen Wirtschaft: EU- und OECD-Vorschläge
Sinnig, Julia UL

in Taeger, Jürgen (Ed.) Tagungsband Herbstakademie 2018: Rechtsfragen digitaler Transformationen - Gestaltung digitaler Veränderungsprozesse durch Recht (in press)

Im März 2018 stellten sowohl die Organisation für wirtschaftliche Zusammenarbeit und Entwicklung (OECD) als auch die Europäische Union (EU) Zwischenergebnisse ihrer Arbeit im Bereich der ... [more ▼]

Im März 2018 stellten sowohl die Organisation für wirtschaftliche Zusammenarbeit und Entwicklung (OECD) als auch die Europäische Union (EU) Zwischenergebnisse ihrer Arbeit im Bereich der Ertragsbesteuerung digitalisierter Geschäftsaktivitäten vor. Während die OECD keine konkrete Empfehlung zur Anpassung bestehender Vorschriften des internationalen Steuerrechts aussprach, stellte die Europäische Kommission sowohl eine langfristige Maßnahme – eine Anpassung des Betriebsstättenkonzepts zugunsten einer sog. signifikanten digitalen Präsenz – als auch einen kurzfristigen Besteuerungsvorschlag – eine sog. Digitalsteuer – vor. Dieser Beitrag knüpft an den Vortrag der Verfasserin in Heidelberg anlässlich der Herbstakademie 2017 an. [less ▲]

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See detailElectrophysiological correlates of emotional crossmodal processing in binge drinking.
Lannoy, Severine; D'Hondt, Fabien; Dormal, Valerie et al

in Cognitive, affective & behavioral neuroscience (in press)

Emotional crossmodal integration (i.e., multisensorial decoding of emotions) is a crucial process that ensures adaptive social behaviors and responses to the environment. Recent evidence suggests that in ... [more ▼]

Emotional crossmodal integration (i.e., multisensorial decoding of emotions) is a crucial process that ensures adaptive social behaviors and responses to the environment. Recent evidence suggests that in binge drinking-an excessive alcohol consumption pattern associated with psychological and cerebral deficits-crossmodal integration is preserved at the behavioral level. Although some studies have suggested brain modifications during affective processing in binge drinking, nothing is known about the cerebral correlates of crossmodal integration. In the current study, we asked 53 university students (17 binge drinkers, 17 moderate drinkers, 19 nondrinkers) to perform an emotional crossmodal task while their behavioral and neurophysiological responses were recorded. Participants had to identify happiness and anger in three conditions (unimodal, crossmodal congruent, crossmodal incongruent) and two modalities (face and/or voice). Binge drinkers did not significantly differ from moderate drinkers and nondrinkers at the behavioral level. However, widespread cerebral modifications were found at perceptual (N100) and mainly at decisional (P3b) stages in binge drinkers, indexed by slower brain processing and stronger activity. These cerebral modifications were mostly related to anger processing and crossmodal integration. This study highlights higher electrophysiological activity in the absence of behavioral deficits, which could index a potential compensation process in binge drinkers. In line with results found in severe alcohol-use disorders, these electrophysiological findings show modified anger processing, which might have a deleterious impact on social functioning. Moreover, this study suggests impaired crossmodal integration at early stages of alcohol-related disorders. [less ▲]

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See detailValuing Creativity, Feeling Overworked and Working Hours: Male Workers and the New Spirit of Capitalism
Samuel, Robin UL; Kanji, Shireen

in Time & Society (in press)

Boltanski and Chiapello (2005) argued that creativity is a required attribute of managers emanating from the ideology of the ‘New Spirit of Capitalism’. Ideology provides the justification for work ... [more ▼]

Boltanski and Chiapello (2005) argued that creativity is a required attribute of managers emanating from the ideology of the ‘New Spirit of Capitalism’. Ideology provides the justification for work practices and brings material consequences in relation to the experience of time. This article explores both the ideology and the links between the ideological and the experience of time by assessing whether male managers prioritise creativity and whether this is related to their working hours, driving them to work longer hours than other workers and longer hours than they actually want. Men’s dominant position in work organisations puts them at the centre of this exploration. Using multilevel logistic and linear models on 2010 data from the European Social Survey (N = 7049), we show that male managers prioritise creativity more than other workers do. There are consequences for the experience of time as valuing creativity in combination with being a manager increases working hours above the large and significant effect of being a manager. The feeling of overwork is raised independently for those who value creativity and for those who are managers. [less ▲]

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See detailAccess to Medical Technologies: Do Gender and Social Capital Matter?
Geraudel, Mickaël UL; Gundolf, Katherine; Cesinger, Beate et al

in Management International = International Management = Gestión Internacional (in press)

We explore the relationship between the characteristics of social capital, the speed of access to medical technologies and the role of gender in a private practice context. Our findings from a sample of ... [more ▼]

We explore the relationship between the characteristics of social capital, the speed of access to medical technologies and the role of gender in a private practice context. Our findings from a sample of 98 German private practitioners show that: (a) being a woman has an overall negative impact on the speed of access to medical technologies; (b) private practitioners with strong social network ties obtain quicker access to medical technologies than do those with weak ties; (c) men relying on their weak ties perform better than women who do so. In contrast, we observe that women relying on strong ties outperform their male counterparts in terms of speed of access to medical technologies. [less ▲]

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See detailPreventing and Resolving Conflicts of Jurisdiction in EU Criminal Law
Ligeti, Katalin UL; Robinson, Gavin UL; European Law Institute

Book published by Oxford University Press (2018)

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See detailAn Imperialist Competitive Algorithm for a Real-World Flexible Job Shop Scheduling Problem
Tessaro Lunardi, Willian UL; Voos, Holger UL; Cherri, Luiz Henrique

in 23rd IEEE International Conference on Emerging Technologies and Factory Automation, Torino, Italy, September 4-7, 2018 (2018, September)

Traditional planning and scheduling techniques still hold important roles in modern smart scheduling systems. Realistic features present in modern manufacturing systems need to be incorporated into these ... [more ▼]

Traditional planning and scheduling techniques still hold important roles in modern smart scheduling systems. Realistic features present in modern manufacturing systems need to be incorporated into these techniques. The real-world problem addressed here is an extension of flexible job shop scheduling problem and is issued from the modern printing and boarding industry. The precedence between operations of each job is given by an arbitrary directed acyclic graph rather than a linear order. In this paper, we extend the traditional FJSP solutions representation to address the parallel operations. We propose an imperialist competitive algorithm for the problem. Several instances are used for the experiments and the results show that, for the considered instances, the proposed algorithm is faster and found better or equal solutions compared to the state-of-the-art algorithms. [less ▲]

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See detailThe Association Between Cyberbullying, School Bullying, and Suicidality Among Adolescents
Zaborskis, Apolinaras; Ilionsky, Gabriela; Tesler, Riki et al

in Crisis (2018)

Background: Bullying and suicidality are serious worldwide problems with negative effects on the young population and therefore international comparisons in this field are of paramount importance. Aims ... [more ▼]

Background: Bullying and suicidality are serious worldwide problems with negative effects on the young population and therefore international comparisons in this field are of paramount importance. Aims: To analyze the prevalence of bullying and cyberbullying and their association with suicidal behavior among school-aged children in Israel, Lithuania, and Luxembourg. Method: In total, 3,814 15-year-olds from schools in Israel, Lithuania, and Luxembourg were surveyed in the Health Behavior in School-Aged Children (HBSC) cross-national survey in 2013/2014 using standardized anonymous questionnaires. Data analysis employed logistic regression and structural equation modeling (SEM). Results: In all, 6.5% of the adolescents reported being cyberbullied, 15.6% reported being bullied at school. In the previous 12 months, 38.6% reported experiencing emotions that stopped them from doing their usual activities, 17.8% considered attempting suicide, 12.0% made a suicide plan, and 9.5% attempted suicide. Victims of cyberbullying and school bullying had a significantly higher risk of suicidal ideations, plans, and attempts. The SEM analysis confirmed a significant overall effect of bullying on adolescent suicidality. The strongest effect was seen among Israeli students. Limitations: The prevalence estimates were obtained by self-report. Conclusion: The prevalence of adolescent cyberbullying, school bullying, and suicidal behavior is relatively high in Israel, Lithuania, and Luxembourg. Cyberbullying is a strong predictor of adolescent suicidality. [less ▲]

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See detailSpectroscopic Studies of dissimilar Al-Cu laser welding
Schmalen, Pascal Guy UL; Plapper, Peter UL

in proceedings of asme msec 2018 (2018)

This paper describes a novel method to analyze the effect of the fiber laser induced plasma on welding of dissimilar Al and Cu. Based on spectroscopic studies, specific wavelengths were found to be ... [more ▼]

This paper describes a novel method to analyze the effect of the fiber laser induced plasma on welding of dissimilar Al and Cu. Based on spectroscopic studies, specific wavelengths were found to be suitable for process monitoring during laser welding. For aluminum, the double peak at 394.4 and 396.1 nm was studied, for cu the 578 nm peak was studied. The characteristic peaks were observed by multiple photodiodes equipped with narrow optical filters with varying FWHM. Analyzing the plasma emissions of the process enabled to detect material changes in the plasma plume. This novel method has the advantage of higher sampling rate combined with reduced costs compared to a spectrometer and is thus able to capture the process dynamics. [less ▲]

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See detailA risk-based approach towards infringement prevention on the internet: adopting the anti-money laundering framework to online platforms
Ullrich, Carsten UL

in International Journal of Law and Information Technology (2018)

This article suggests a new approach towards online service provider liability which relies on duty of care. It proposes a concrete compliance framework for online platforms, borrowed from risk regulation ... [more ▼]

This article suggests a new approach towards online service provider liability which relies on duty of care. It proposes a concrete compliance framework for online platforms, borrowed from risk regulation, and modelled on anti-money laundering (AML) obligations in the financial sector. First, the prohibition on obliging platforms to monitor content in a general manner under the E-Commerce Directive will be discussed. On the face of it this may clash with a standardized requirement to filter for infringing content. Subsequently, the regulatory choice for such a duty of care standard will be explored. It is argued that the largely self-regulatory proposals currently on the table may be ill fitted to achieve traction and accountability. Finally, a three-tier compliance framework, modelled on the AML system and using a risk-based approach, is proposed. The pitfalls of such a highly automated compliance solution, which enforces complex legal norms, will also be touched on. [less ▲]

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See detailEnhancing mobile services with DVB-S2X superframing
Mazzali, Nicolò UL; Boumard, Sandrine; Kinnunen, Jouko et al

in International Journal of Satellite Communications and Networking (2018)

DVB-S2X is the cornerstone for satellite communication standards forming the state of the art of broadband satellite waveforms. In this paper, we propose new application scenarios and advanced techniques ... [more ▼]

DVB-S2X is the cornerstone for satellite communication standards forming the state of the art of broadband satellite waveforms. In this paper, we propose new application scenarios and advanced techniques, including a reference design implementing superframing, predistortion, a robust synchronization chain, and a plug-and-play channel interleaver. We demonstrate by means of software simulations and hardware tests that the DVB-S2X can be a common technology enabler for land-mobile, aeronautical, and maritime satellite scenarios in addition to the more traditional VSAT scenario, even in very challenging conditions (eg, very low signal-to-noise ratio). [less ▲]

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See detailInteraction rituals and inquiry-based science instruction: Analysis of student participation in small-group investigations in a multilingual classroom
Wilmes, Sara UL; Siry, Christina UL

in Science Education (2018)

Language learners participating in inquiry‐based science instruction are often faced with the challenge of interacting in a language they have not yet mastered. With this challenge at the fore, this study ... [more ▼]

Language learners participating in inquiry‐based science instruction are often faced with the challenge of interacting in a language they have not yet mastered. With this challenge at the fore, this study uses interaction ritual theory to examine a plurilingual student's participation in inquiry‐based science. Interaction ritual analysis of the focal student's interactions with peers during small‐group science investigations at the microlevel (tenths of a second) and in real‐time revealed that positive interaction rituals failed to form at first. Over a period of 6 months, his persistent use of nonverbal and verbal participation strategies, and opportunities to engage diverse communicative resources, resulted in higher levels of synchrony with his classmates and successful interactions in the language of instruction. The findings present novel information about the nuances of the silent, embodied participation of language learners in inquiry‐oriented instruction. Further, the findings elaborate the claim that inquiry‐based science pedagogies created space for students to form successful interaction rituals that, in turn, supported the focal student's science engagement and language development. [less ▲]

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See detailProject NUMTEST: Assessing basic number competence without language
Greisen, Max UL; Hornung, Caroline UL; Schiltz, Christine UL

Poster (2018, June 28)

Although numerical skills are essential in modern societies, 5- 7 % of the population suffer from mathematical learning disabilities. Due to the hierarchical nature of mathematical knowledge, screening ... [more ▼]

Although numerical skills are essential in modern societies, 5- 7 % of the population suffer from mathematical learning disabilities. Due to the hierarchical nature of mathematical knowledge, screening during the earliest stages of learning is essential to intervene efficiently. While different screening tools exist, they rely on verbal instructions and task content, hampering their usefulness in linguistically heterogeneous young school populations. We developed a computerized task that requires subjects to encode both auditory and visual numerical information to successfully respond to the task’s demands. For task instruction, participants were presented a video showing a person correctly solving three easy items of the task, before moving on to a practice session of three different items. If any item was solved incorrectly, the entire practice session was repeated for the participant. We administered the task to a sample of first grade students and collected participant’s performance in standardized addition, subtraction and number comparison (1 & 2-digit) tasks. A multivariate analysis with practice repetition as between-subject factor on the four standardized control measures revealed that participants that repeated the practice session scored significantly lower in three out of four dependent measures. These results suggest that the immediate understanding (i.e. practice items solved correctly on the first try) of our task, requiring deductive reasoning and an abstract, format-independent representation of quantity, is able to differentiate between high and low performers on standardized measures of basic math competence non-verbally at an early stage of learning. Implications and limitations will be discussed. [less ▲]

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See detailTaking Language out of the Equation: The Assessment of Basic Math Competence Without Language
Greisen, Max UL; Hornung, Caroline UL; Baudson, Tanja UL et al

in Frontiers in Psychology (2018)

While numerical skills are fundamental in modern societies, some estimated 5–7% of children suffer from mathematical learning difficulties (MLD) that need to be assessed early to ensure successful ... [more ▼]

While numerical skills are fundamental in modern societies, some estimated 5–7% of children suffer from mathematical learning difficulties (MLD) that need to be assessed early to ensure successful remediation. Universally employable diagnostic tools are yet lacking, as current test batteries for basic mathematics assessment are based on verbal instructions. However, prior research has shown that performance in mathematics assessment is often dependent on the testee’s proficiency in the language of instruction which might lead to unfair bias in test scores. Furthermore, language-dependent assessment tools produce results that are not easily comparable across countries. Here we present results of a study that aims to develop tasks allowing to test for basic math competence without relying on verbal instructions or task content. We implemented video and animation-based task instructions on touchscreen devices that require no verbal explanation. We administered these experimental tasks to two samples of children attending the first grade of primary school. One group completed the tasks with verbal instructions while another group received video instructions showing a person successfully completing the task.We assessed task comprehension and usability aspects both directly and indirectly. Our results suggest that the non-verbal instructions were generally well understood as the absence of explicit verbal instructions did not influence task performance. Thus we found that it is possible to assess basic math competence without verbal instructions. It also appeared that in some cases a single word in a verbal instruction can lead to the failure of a task that is successfully completed with non-verbal instruction. However, special care must be taken during task design because on rare occasions non-verbal video instructions fail to convey task instructions as clearly as spoken language and thus the latter do not provide a panacea to non-verbal assessment. Nevertheless, our findings provide an encouraging proof of concept for the further development of non-verbal assessment tools for basic math competence. [less ▲]

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