Types of health-related behaviours: a cluster analysis of the Luxembourgish HBSC data

Scientific Conference (2021, June)

Background: Although it is known that health behaviours, socio-demographic variables and outcomes correlate, it is rarely investigated if there are typical patterns of these variables among the research ... [more ▼]

Background: Although it is known that health behaviours, socio-demographic variables and outcomes correlate, it is rarely investigated if there are typical patterns of these variables among the research subjects. Objectives: To find out whether the students can be divided into distinct groups based on their health behaviour and whether these groups differ in other ways (outcomes and socio-demographics). Method: In step 1, a hierarchical cluster analysis was carried out to determine the number of groups and to identify the cluster centres. In step 2, this information was entered as the initial values of a cluster centre analysis. In step 3, the clusters were characterised using additional variables. Results: The 8065 students surveyed could be divided into 5 distinct groups based on their data on smoking, drinking, soft drinks, exercising, fighting and bullying, with cluster 1 and cluster 5 representing the strongest contrast. Cluster 1 comprises students whose health behaviour is generally positive. It is the largest cluster with 49.5% of students. Cluster 5 comprises students whose behaviour is consistently negative. It is the smallest cluster with 7.1% of students. Students in cluster 2 are close to average on many variables, but their dental health is problematic because they frequently consume soft drinks and rarely brush their teeth. Students in cluster 3 are physically inactive, their mental health is poor, but they are also rarely injured. The students in cluster 4 stand out because of their aggressive behaviour. Conclusion: With the help of cluster analysis, it is possible to categorise the students into a small number of groups based on their health behaviour. These groups are coherent in terms of health behaviour, many outcome variables and socio-demographic variables. [less ▲]

A Typical Case Report: Internet Gaming Disorder Psychotherapy Treatment in Private Practice

in International Journal of Environmental Research and Public Health (2021), 18(4),

Background: Online or internet gaming disorder (IGD) is currently not recognized as a mental disorder in the actual Diagnostic and Statistical Manual of Mental Disorders (DSM-5), although it is an ... [more ▼]

Background: Online or internet gaming disorder (IGD) is currently not recognized as a mental disorder in the actual Diagnostic and Statistical Manual of Mental Disorders (DSM-5), although it is an emerging disease. Non-substance-related addictions often have similarities with substance addictions. It is therefore important to have a good understanding of the client but also to have a good endurance. Due to the rise of e-sports, there is an anticipated and therefore possible trend to have many more patients with a non-substance addiction. There are many parallels, for instance tolerance, withdrawal and social problems, resulting from an increasing investment of time spent on the internet. Case presentation: To reduce possible inhibition in treating a patient with IGD, we present a case of a 19-year-old adolescent man who exhibited IGD and showed social problems associated with his addiction. Conclusions: This paper shows the importance and the effects of treating a non-substance addiction with cognitive behavioral therapy (CBT). After having successfully coped with an addiction, several shifts in addiction were often reported. In this case, no shifts were reported. The absence of such shifts makes our case a distinct and unique case. This is not a multimorbidity case, and that is the reason why we think this is an excellent example to show what we achieved, how we achieved it, and what we could establish. Of course, additional research and manuals are urgently needed. [less ▲]

Typografie im Webdesign: So kannst du Schriftarten kombinieren

Article for general public (2014)

Dank Webfonts hält typografische Vielfalt seit einigen Jahren auch im Web Einzug. Worauf man bei der Kombination unterschiedlicher Fonts achten sollte.

Typographie und Einbildungskraft. Die Druckmedialität der Literatur um 1800

Presentation (2015)

Typologie des parlers au Luxembourg

in Le Sondage: "Baleine". Une étude sociologique sur les trajectoires migratoires, les langues et la vie au Luxembourg (1998)

A “Typus” as an Appropriate Legal Tool for the interpretation of the “No Bail-out” Clause: The 'Private Investor Principle'

in European Politeia (2015)

The purpose of this paper is to present the academic debate on the interpretation of Article 125 TFEU and to critically demonstrate the jurisprudential controversy that surrounds this provision, both from ... [more ▼]

The purpose of this paper is to present the academic debate on the interpretation of Article 125 TFEU and to critically demonstrate the jurisprudential controversy that surrounds this provision, both from the CJEU standpoint as well as the Bundesverfassungsgericht’s angle. While we believe that the Court interpreted rightly the provision at issue, we argue that it has left certain questions unanswered. The second part of the paper will develop our suggestion regarding the need to construct and adopt a ‘typus’, along the lines and by analogy to the ‘private investor principle’, as an appropriate form of legal reasoning for the interpretation of the ‘no bail-out clause’ proviso, that would allow more legal certainty as to the persisting question of what kind of financial assistance meets the purpose of Article 125 TFEU. [less ▲]

Tyrannentopik und Sklavereinarrativ zur Zeit Diokletians und Konstantins

in Goltz, Andreas; Schlange-Schöningen, Heinrich (Eds.) Das Zeitalter Diokletians und Konstantins. Bilanz und Perspektiven der Forschung. Festschrift für Alexander Demandt (2022)

Tyranny of Writing: Ideologies of the Written Word

Book published by Bloomsbury (2018)

U wie Un

Article for general public (2012)

The U.S.–China Supply Competition for Rare Earth Elements: A Dynamic Game View

in Environmental Modeling and Assessment (2022)

Rare earth elements govern today’s high-tech world and are deemed to be essential for the attainment of sustainable development goals. Since the 1990s, these elements have been predominantly supplied by ... [more ▼]

Rare earth elements govern today’s high-tech world and are deemed to be essential for the attainment of sustainable development goals. Since the 1990s, these elements have been predominantly supplied by one single actor, China. However, due to the increasing relevance of their availability, the United States, who imports 80% of its rare earths from China, recently announced its plan to (re-)enter the rare earths supply market. This paper analyzes the strategic interactions among these two countries in open-loop and Markovian strategy spaces. Particular interest is devoted to the impact of heterogeneous supply concepts on (1) the theoretical optimal timing for the U.S. to enter the non-renewable resource market, (2) China’s optimal supply reaction to the U.S.’ entry announcement, (3) the central planner outcome, and (4) the profitability of the suppliers’ extraction behavior. By setting up a continuous-time differential game model, we show that in the absence of arbitrage opportunity, (1) the U.S. should always postpone the production launch until its rare earths reserves coincide with those of China, (2) China’s monopolistic supply is not shaped by the selected strategy, (3) while the duopolistic Markovian behavior is initially more lucrative than open-loop commitment, the opposite situation emerges as the competition proceeds, and (4) on balance, both countries are financially better off when committing to an open-loop supply path. [less ▲]