Machine learning analysis of metabolomics and neuro-imaging data for Parkinson’s disease

Presentation (2019, January)

Review for "German Journal of Exercise and Sport Research"

in Voelcker-Rehage (Ed.) German Journal of Exercise and Sport Research (2019)

Smoking, Implicit Attitudes, and Context-Sensitivity: An Overview

in Substance Abuse and Addiction: : Breakthroughs in Research and Practice (2019)

This chapter focuses on implicit attitudes toward smoking and provides the first systematic review of research in this domain. Implicit attitudes are suggested to guide automatic behavior, thereby playing ... [more ▼]

This chapter focuses on implicit attitudes toward smoking and provides the first systematic review of research in this domain. Implicit attitudes are suggested to guide automatic behavior, thereby playing a pivotal role for automatic processes inherent in addictive behaviors. This chapter further explores the extent to which implicit attitudes are context-sensitive. More specifically, it reviews studies that have focused on the differential effects of external cues such as warning labels and internal cues (e.g., deprivation). Results of 32 studies show that although smokers generally have more positive implicit attitudes than non-smokers, the valence of implicit attitudes varies as a result of the applied method or stimuli. Studies reveal that implicit attitudes toward smoking partly depend on external cues, especially outcome expectancies. Similarly, internal cues affect implicit attitudes whereby the level of nicotine deprivation seems vital. Implications for intervention and future research are indicated in the discussion. [less ▲]

Aggregation of MQTT Topics over Integrated Satellite Terrestrial Networks

in ACM SIGMETRICS Performance Evaluation Review (2019, January)

The MQTT application protocol was originally designed for monitoring a oil pipeline through the desert by collecting sensor data via satellite link. Thus, by design MQTT is very suitable for data ... [more ▼]

The MQTT application protocol was originally designed for monitoring a oil pipeline through the desert by collecting sensor data via satellite link. Thus, by design MQTT is very suitable for data collection over integrated satellite-terrestrial networks. Leveraging on the MQTT Bridge functionality, in this work we propose a novel architecture with two MQTT Brokers located at the satellite terminal and the satellite gateway. By using the topic pattern option, supported by the bridge, a subscriber can request several topics within a single request. To reduce the amount of traffic ex-changed over the satellite return channel, we introduce in the architecture a new entity, namely MQTT message aggregation filter, which aggregates all the MQTT topics matching the topic pattern in the same response. [less ▲]

Novel Opportunities by Laser Welding of Dissimilar Materials

in Proceedings of International Conference on Competitive Manufacturing COMA'19 (2019, January)

The Laser Technology Competence Centre (LTCC) of the University of Luxembourg provides skills in joining material combinations, which are considered being non-weld able with traditional methods or at ... [more ▼]

The Laser Technology Competence Centre (LTCC) of the University of Luxembourg provides skills in joining material combinations, which are considered being non-weld able with traditional methods or at least challenging to join (e.g. Copper and Aluminium, Aluminium and Polyamide (PA), Titanium and PEEK, steel and tungsten hard alloy). Related accomplishments include minimal intermetallic compounds, convincing mechanical and superior electrical properties of the laser-welded specimen. With defined spatial and temporal modulation of the laser beam, an accurately defined temperature profile is created on the lower side of the upper material in the two dimensional directions, which enable joining of dissimilar materials in overlap configurations, despite challenging thermal properties. To weld butt-joint geometries with minimal heat affected volume, the temperature profiles were expanded in the third dimension, which can be achieved through controlled laser energy guidance. The scientific methods to accomplish these convincing results are explained, with selected industrial use cases ranging from automotive industry, energy storage, and medical implants. An outlook with unsolved challenges is intended to ignite discussions about upcoming research topics. [less ▲]

Emotionales Erleben und schulische Inklusion – Untersuchungen mit der Experience Sampling Method

Presentation (2019, January)

A minority pulls the sample mean: on the individual prevalence of robust group-level cognitive phenomena - the instance of the SNARC effect

Presentation (2019, January)

Avis juridiques indépendants en cas de délégation par un dépositaire d'OPCVM

in Revue de Droit Bancaire et Financier (2019), (1), 64

Impact of GPS Antenna Phase Center Models on Zenith Wet Delay and Tropospheric Gradients

in GPS Solutions (2019), 23(5),

We demonstrate the potential for the Global Positioning System (GPS) to provide highly accurate tropospheric products for use in meteorological applications. Tropospheric products, in particular the wet ... [more ▼]

We demonstrate the potential for the Global Positioning System (GPS) to provide highly accurate tropospheric products for use in meteorological applications. Tropospheric products, in particular the wet delays, are treated as an unknown parameter in GPS processing and are estimated with other parameters such as station coordinates. In this study, we investigate the effects of Phase Center Correction (PCC) models on tropospheric zenith wet delay (ZWD), integrated water vapor (IWV) and gradient products. Two solutions were generated using the GAMIT software over the EUREF Permanent GNSS Network (EPN). The first (reference) solution was derived by applying the International GNSS Service (IGS) type-mean PCC model, while for the second solution PCC models from individual calibrations were used. The solutions were generated identically, except for the PCC model differences. The two solutions were compared, with the assumption that common signals are differenced out. The comparison of the two solutions clearly shows a bias in all tropospheric products, which can be attributed to PCC model deficiencies. Overall, mean biases of ±1.8, ±0.3, ±0.14 and ±0.19 mm are evident in ZWD, IWV, North-South and East-West gradients, respectively. Moreover, the differences between the two solutions show seasonal variations. For all antenna types, the ZWD and IWV differences are dominated by white plus power-law noise, with latter characterizing the low-frequency spectrum. On the other hand, the horizontal gradients exhibit a white plus first order autoregressive noise characteristic with less than 1% white noise. The individual PCC model provides a better fit to an external independent model in terms of gradient estimate and also provides up to 3 % more carrier phase ambiguity resolution. [less ▲]

Institutionnalisations et perspectives des études de la frontière dans la Grande Région

Presentation (2019)