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See detailFundamental rights and constitutional identity(ies): limits or parameters of the EU constitutional governance?
Zinonos, Panagiotis UL

in European Governance and Sovereignty (in press)

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See detailSoftware Engineering Research and Industry: A Symbiotic Relationship to Foster Impact
Basili, Victor; Briand, Lionel UL; Bianculli, Domenico UL et al

in IEEE Software (in press)

Software engineering is not only an increasingly challenging endeavor that goes beyond the intellectual capabilities of any single individual engineer, but is also an intensely human one. Tools and ... [more ▼]

Software engineering is not only an increasingly challenging endeavor that goes beyond the intellectual capabilities of any single individual engineer, but is also an intensely human one. Tools and methods to develop software are employed by engineers of varied backgrounds within a large variety of organizations and application domains. As a result, the variation in challenges and practices in system requirements, architecture, and quality assurance is staggering. Human, domain and organizational factors define the context within which software engineering methodologies and technologies are to be applied and therefore the context that research needs to account for, if it is to be impactful. This paper provides an assessment of the current challenges faced by software engineering research in achieving its potential, a description of the root causes of such challenges, and a proposal for the field to move forward and become more impactful through collaborative research and innovation between public research and industry. [less ▲]

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See detailDisability and Inequality in Educational Opportunities in Life Course Perspective
Powell, Justin J W UL; Pfahl, Lisa

in Becker, Rolf (Ed.) Research Handbook in Sociology of Education (in press)

Inclusive education has become a global norm, supported by the recognition of human rights, and now affects education policymaking and system development worldwide. While important contributions in ... [more ▼]

Inclusive education has become a global norm, supported by the recognition of human rights, and now affects education policymaking and system development worldwide. While important contributions in sociological research on education, disability, and inequality exist, those in life course perspective and international comparative perspectives are rarer. Studies of educational opportunities of children and youth with disabilities and disadvantages over the past several decades underscore the lack of systematic approaches to facilitate educational and social inclusion. Within the educational research field, sociological approaches to disability, to special educational needs, and to inclusive education emphasize such dimensions as exclusion/inclusion, segregation/integration, learning opportunities, in/equality, institutionalization, stigma, risk, and certification or credentials. To recognize and understand the causes and consequences of disability-related inequality requires in-depth dialogue and benefits from results of studies on different levels and within diverse cultural contexts. This article provides insights into disability and inequality in educational opportunities across Europe and an overview of research topics, results, and gaps. The sociology of education would increase its contribution were it to be more inclusive in analyzing the processes that affect educational opportunities and life chances of those who experience disablement in schooling. [less ▲]

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See detailA Machine Learning-Driven Evolutionary Approach for Testing Web Application Firewalls
Appelt, Dennis; Nguyen, Cu D.; Panichella, Annibale UL et al

in IEEE Transactions on Reliability (in press)

Web application firewalls (WAF) are an essential protection mechanism for online software systems. Because of the relentless flow of new kinds of attacks as well as their increased sophistication, WAFs ... [more ▼]

Web application firewalls (WAF) are an essential protection mechanism for online software systems. Because of the relentless flow of new kinds of attacks as well as their increased sophistication, WAFs have to be updated and tested regularly to prevent attackers from easily circumventing them. In this paper, we focus on testing WAFs for SQL injection attacks, but the general principles and strategy we propose can be adapted to other contexts. We present ML-Driven, an approach based on machine learning and an evolutionary algorithm to automatically detect holes in WAFs that let SQL injection attacks bypass them. Initially, ML-Driven automatically generates a diverse set of attacks and submit them to the system being protected by the target WAF. Then, ML-Driven selects attacks that exhibit patterns (substrings) associated with bypassing the WAF and evolve them to generate new successful bypassing attacks. Machine learning is used to incrementally learn attack patterns from previously generated attacks according to their testing results, i.e., if they are blocked or bypass the WAF. We implemented ML-Driven in a tool and evaluated it on ModSecurity, a widely used open-source WAF, and a proprietary WAF protecting a financial institution. Our empirical results indicate that ML-Driven is effective and efficient at generating SQL injection attacks bypassing WAFs and identifying attack patterns. [less ▲]

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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 detailIncluding gaming disorder in the ICD-11: The need to do so from a clinical and public health perspective.
Rumpf, Hans-Jurgen; Achab, Sophia; Billieux, Joël UL et al

in Journal of behavioral addictions (in press)

The proposed introduction of gaming disorder (GD) in the 11th revision of the International Classification of Diseases (ICD-11) developed by the World Health Organization (WHO) has led to a lively debate ... [more ▼]

The proposed introduction of gaming disorder (GD) in the 11th revision of the International Classification of Diseases (ICD-11) developed by the World Health Organization (WHO) has led to a lively debate over the past year. Besides the broad support for the decision in the academic press, a recent publication by van Rooij et al. (2018) repeated the criticism raised against the inclusion of GD in ICD-11 by Aarseth et al. (2017). We argue that this group of researchers fails to recognize the clinical and public health considerations, which support the WHO perspective. It is important to recognize a range of biases that may influence this debate; in particular, the gaming industry may wish to diminish its responsibility by claiming that GD is not a public health problem, a position which maybe supported by arguments from scholars based in media psychology, computer games research, communication science, and related disciplines. However, just as with any other disease or disorder in the ICD-11, the decision whether or not to include GD is based on clinical evidence and public health needs. Therefore, we reiterate our conclusion that including GD reflects the essence of the ICD and will facilitate treatment and prevention for those who need it. [less ▲]

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See detailSimple and extensible plate and shell finite element models through automatic code generation tools
Hale, Jack UL; Brunetti, Matteo; Bordas, Stéphane UL et al

in Computers & Structures (in press)

A large number of advanced finite element shell formulations have been developed, but their adoption is hindered by complexities of transforming mathematical formulations into computer code. Furthermore ... [more ▼]

A large number of advanced finite element shell formulations have been developed, but their adoption is hindered by complexities of transforming mathematical formulations into computer code. Furthermore, it is often not straightforward to adapt existing implementations to emerging frontier problems in thin structural mechanics including nonlinear material behaviour, complex microstructures, multi-physical couplings, or active materials. We show that by using a high-level mathematical modelling strategy and automatic code generation tools, a wide range of advanced plate and shell finite element models can be generated easily and efficiently, including: the linear and non-linear geometrically exact Naghdi shell models, the Marguerre-von K ́arm ́an shallow shell model, and the Reissner-Mindlin plate model. To solve shear and membrane-locking issues, we use: a novel re-interpretation of the Mixed Interpolation of Tensorial Component (MITC) procedure as a mixed-hybridisable finite element method, and a high polynomial order Partial Selective Reduced Integration (PSRI) method. The effectiveness of these approaches and the ease of writing solvers is illustrated through a large set of verification tests and demo codes, collected in an open-source library, FEniCS-Shells, that extends the FEniCS Project finite element problem solving environment. [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 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 detailArbeitslosigkeit für Lehrabgänger problematisch
Sacchi, Stefan; Shi, Lulu P.; Imdorf, Christian et al

in Die Volkswirtschaft (in press)

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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 detailEffects of cold stimulation on cardiac-vagal activation: Randomized controlled trial with healthy participants
Jungmann, Manuela; Vencatachellum, Shervin UL; van Ryckeghem, Dimitri UL et al

in Journal of Medical Internet Research (in press)

Background: The experience of psychological stress has not yet been adequately tackled with digital technology by catering to healthy individuals who wish to reduce their acute stress levels. For the ... [more ▼]

Background: The experience of psychological stress has not yet been adequately tackled with digital technology by catering to healthy individuals who wish to reduce their acute stress levels. For the design of digitally mediated solutions, physiological mechanisms need to be investigated that have the potential to induce relaxation with the help of technology. Research has shown that physiological mechanisms embodied in the face and neck regions are effective for diminishing stress related symptoms. The study described in this paper expands on these areas with the design for a wearable in mind. As this study charts new territory in research, it also represents a first evaluation of the viability for a wearables concept to reduce stress. We inquire into the effects of cold stimulation on heart rate (HR) and heart rate variability (HRV) in the neck region using a Thermode device. Objective: The objectives of this study were to assess whether (a) HRV is increased and (b) HR is decreased during a cold stimulation compared to a (non-stimulated) control condition. Effects were in particular expected in the neck and cheek regions and less in the forearm area (c). Methods: Participants were seated in a lab chair and tested with cold stimulation on the right side of the body. A Thermode was placed on the neck, cheek and forearm. Participants’ electrocardiogram was recorded and subsequently analyzed. The study was a fully randomized, within subject design. The cold stimulation was applied in 16 s intervals over 4 trials per testing location. The control condition proceeded exactly like the cold condition, except the thermal variable was manipulated to remain on the baseline temperature. HR was measured in msec IBI. rMSSD analyses were used to index HRV. Data were analyzed using a repeated measurements analysis of variance approach with two repeated measurements factors, i.e. Body Location (neck, cheek, forearm) and Condition (cold, control) Results: The data analysis of 61 participants (on exclusion of outliers) showed a main effect for body location for HR and HRV, a main effect for condition for HR and HRV and an interaction effect for condition and body location for HR and HRV. The results obtained demonstrate a pattern of cardiovascular reactivity to cold stimulation, suggesting an increase in cardiac-vagal activation. The effect was found to be significant for cold stimulation in the lateral neck area. Conclusion: The results confirmed our main hypothesis. This sets the stage for further investigations of the stress reduction potential in the neck region by developing a wearable prototype that can be used for cold application. Future studies should include a stress condition, test for a range of temperatures and durations, and collect self-report data on perceived stress levels to advance current findings. [less ▲]

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See detailCompte rendu de Ph. Poirier (dir.), Les pouvoirs d’un parlement. La Chambre des députés du Luxembourg, Promoculture-Larcier, Windhof, 2014
Heuschling, Luc UL

in Hemecht : Zeitschrift für Luxemburger Geschichte = Revue d'Histoire Luxembourgeoise (in press)

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See detailResilience factors in children with Juvenile Idiopathic Arthritis and their parents: the role of child and parent psychological flexibility.
Beeckman, Melanie; Hughes, Sean; van Ryckeghem, Dimitri UL et al

in Pain Medicine : The Official Journal of the American Academy of Pain Medicine (in press)

Objective: Chronic pain is central to Juvenile Idiopathic Arthritis (JIA) and is predictive of impaired functioning. Whereas most work has focused on identifying psychosocial risk factors for maladaptive ... [more ▼]

Objective: Chronic pain is central to Juvenile Idiopathic Arthritis (JIA) and is predictive of impaired functioning. Whereas most work has focused on identifying psychosocial risk factors for maladaptive outcomes, we explored the idea that child and parental psychological flexibility (PF) represent resilience factors for adaptive functioning of the child. We also explored differences between general versus pain-specific PF in contributing to child outcomes. Methods: Children with JIA (8-18 years) and (one of) their parents were recruited at the department of pediatric rheumatology at the Ghent University Hospital in Belgium. They completed questionnaires assessing child and parent general and pain-specific PF and child psychosocial and emotional functioning, and disability. Results: The final sample consisted of fifty-nine children and forty-eight parents. Multiple regression analyses revealed that child PF contributed to better psychosocial functioning and less negative affect. Child pain acceptance contributed to better psychosocial functioning, lower levels of disability and lower negative affect, and also buffered against the negative influence of pain intensity on disability. Bootstrap mediation analyses demonstrated that parental (general) PF indirectly contributed to child psychosocial functioning and affect via the child’s (general) PF. Parent pain-specific PF was indirectly linked to child psychosocial functioning, disability, and negative affect via child pain acceptance. Conclusion: Our findings indicate that child and parental PF are resilience factors and show that pain acceptance buffers against the negative impact of pain intensity. Implications for psychosocial interventions that target (pain-specific) PF in children as well as in parents are discussed. [less ▲]

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See detailParental emotion and pain control behaviour when faced with child’s pain: the emotion regulatory role of parental pain-related attention-set shifting and heart rate variability
Vervoort, Tine; Karos, Kai; Johnson, Dan et al

in Pain (in press)

, The present study investigated the moderating role of parental pain-related attention-set shifting and heart rate variability (HRV) for parental distress and pain control behaviour when faced with their ... [more ▼]

, The present study investigated the moderating role of parental pain-related attention-set shifting and heart rate variability (HRV) for parental distress and pain control behaviour when faced with their child’s pain. Participants were 54 school children and one of their parents. Parental HRV was assessed at study commencement followed by a cued switching task indexing parental ability to flexibly shift attention between pain-related and neutral attentional sets. In a subsequent phase, parents observed their child perform a CPT task, allowing assessment of parental pain control behavior (indexed by latency to stop their child’s CPT performance) and parental distress – assessed via self-report following observation of child CPT performance. Findings indicated that parental facilitated attentional shifting (i.e., engage) towards a pain-related attentional set contributed to higher levels of pain control behaviour when faced with increasing levels of chid facial display of pain. Pain control behaviour amongst parents who demonstrated impeded attentional shifting to a pain-related attentional set was equally pronounced regardless of low or high levels of child pain expression. Parental ability to shift attention away (i.e., disengage) from a pain related set to a neutral set did not impact findings. Results further indicated that whereas high levels of parental HRV buffers the impact of child facial pain display upon parental emotional distress and pain control behaviour, low levels of HRV constitute a risk factor for higher levels of parental distress and pain control behaviour when faced with increased child facial pain display. Theoretical/clinical implications and further research directions are discussed. [less ▲]

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See detailHealth benefits of walking in nature: a randomized controlled study under conditions of real-life stress.
Olafsdottir, Gunnthora; Cloke, Paul; Schulz, André UL et al

in Environment & Behavior (in press)

We investigated the effects of recreational exposure to the natural environment on mood and psychophysiological responses to stress. We hypothesized that walking in nature has restorative effects over and ... [more ▼]

We investigated the effects of recreational exposure to the natural environment on mood and psychophysiological responses to stress. We hypothesized that walking in nature has restorative effects over and above the effects of exposure to nature scenes (viewing-nature-on-TV) or physical exercise alone (walking-on-a-treadmill-in-a-gym) and that these effects are greater when participants were expected to be more stressed. Healthy university students (N=90) were randomly allocated to 1 of 3 conditions and tested during an exam-free period and again during their exam time. Mood and psychophysiological responses were assessed before and after the interventions, and again after a laboratory stressor. All interventions had restorative effects on cortisol levels (p < .001), yet walking in nature resulted in lower cortisol levels than did nature viewing (p < .05) during the exam period. Walking in nature improved mood more than watching nature scenes (p < .001) or physical exercise alone (p < .05). [less ▲]

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See detailInformation sharing, credit booms and financial stability: Do developing economies differ from advanced countries?
Leon, Florian UL; Guérineau, Samuel

in Journal of Financial Stability (in press)

This paper analyses the impact of credit information sharing on financial stability, drawing special attention to its interactions with credit booms. A probit estimation of financial vulnerability ... [more ▼]

This paper analyses the impact of credit information sharing on financial stability, drawing special attention to its interactions with credit booms. A probit estimation of financial vulnerability episodes—identified by jumps in the ratio of non-performing loans to total loans—is run for a sample of 159 countries divided into two sub-samples according to their level of development: 80 advanced or emerging economies and 79 less developed countries. The results show that: i) credit information sharing reduces financial fragility for both groups of countries; ii) for less developed countries, the main effect is the direct effect (reduction of NPL ratio once credit boom is controlled), suggesting a portfolio quality effect; iii) credit information sharing also mitigates the detrimental impact of a credit boom on financial fragility but this result holds only for advanced and emerging countries and for household credit booms; and iv) the depth of information sharing has a negative impact on the likelihood of credit booms (but not the coverage of IS). [less ▲]

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