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See detailDas luxemburgische Schulsystem. Einblicke und Trends.
Lenz, Thomas UL; Heinz, Andreas UL

in LUCET; SCRIPT (Eds.) Nationaler Bildungsbericht Luxemburg 2018 (2018)

In diesem Beitrag werden die wichtigsten Zahlen und Fakten zum luxemburgischen Schulsystem überblicksartig dargestellt und die Entwicklungen innerhalb der letzten Jahre aufgezeigt. Ein besonderer ... [more ▼]

In diesem Beitrag werden die wichtigsten Zahlen und Fakten zum luxemburgischen Schulsystem überblicksartig dargestellt und die Entwicklungen innerhalb der letzten Jahre aufgezeigt. Ein besonderer Schwerpunkt liegt auf der Darstellung des Übergangs von der Grund- zur Sekundarschule. Hierbei zeigen sich teilweise große Unterschiede zwischen den Geschlechtern, den Nationalitäten und auch zwischen einzelnen Gemeinden in Luxemburg. [less ▲]

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See detailIntroduction to Machine Learning for Power Engineers
Glauner, Patrick UL; State, Radu UL

Scientific Conference (2018)

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See detailZwischen Mensch und Ding
Kolnberger, Thomas UL

in Hahn, Hans Peter; Neumann, Friedemann (Eds.) Dinge als Herausforderung: Kontexte, Umgangsweisen und Umwertungen von Objekten (2018)

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See detailLe système scolaire luxembourgeois : aperçu et tendances
Lenz, Thomas UL; Heinz, Andreas UL

in LUCET; SCRIPT (Eds.) Rapport national sur l'éducation au Luxembourg 2018 (2018)

Cet article donne un aperçu des principaux faits et chiffres du système scolaire luxembourgeois et présente les développements réalisés au cours des dernières années. L’accent est mis en particulier sur ... [more ▼]

Cet article donne un aperçu des principaux faits et chiffres du système scolaire luxembourgeois et présente les développements réalisés au cours des dernières années. L’accent est mis en particulier sur la transition de l’enseignement fondamental à l’enseignement secondaire. À cet égard, d’importantes différences sont en partie observées en fonction du sexe, des nationalités et entre différentes communes du Luxembourg. [less ▲]

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See detailCimetière communal de Walferdange au Luxembourg. Les défunts sous le regard des vivants, vivre l’hétérotopie du cimetière
Kmec, Sonja UL; Streb, Christoph Klaus UL; Kolnberger, Thomas UL et al

in Botte, Julie (Ed.) Des lieux pour penser: musées, bibliothèques, théâtres. Matériaux pour une discussion (2018)

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See detailMindfulness, Worries, and Parenting in Parents of Children With Type 1 Diabetes
Van Gampelaere, Cynthia; Luyckx, Koen; Van Ryckeghem, Dimitri UL et al

in Journal of Pediatric Psychology (2018)

Objective Parents of children with type 1 diabetes (T1D) often experience distress and worries, which may negatively impact their parenting behaviors. The current study investigates parental mindfulness ... [more ▼]

Objective Parents of children with type 1 diabetes (T1D) often experience distress and worries, which may negatively impact their parenting behaviors. The current study investigates parental mindfulness (i.e., an enhanced attention to and awareness of current experiences or present reality) as a resilience mechanism. Using a daily diary approach, the predictive role of parental mindfulness for daily diabetes-related worries was examined, its impact upon protective parenting behaviors, and its buffering role in the relationship between daily worries and protective parenting behaviors. Methods Participants were 56 parents of 40 children with T1D (2–12 years). Trait mindfulness was assessed with the Mindful Attention Awareness Scale. Subsequently, parents completed a diary for 14 consecutive days, assessing parental worries about hypo- and hyperglycemia and general and diabetes-specific parental protective behavior. Results Multilevel analyses showed that parental diabetes-related worries fluctuated substantially across days and positively predicted daily protective behavior. Higher levels of parental mindfulness predicted less daily worries about hypoglycemia and lower engagement in general protective behavior and hypoglycemia avoidance behavior. In addition, the relationship between worries about hyperglycemia and general protective behavior was moderated by parental mindfulness. Conclusions The present findings highlight the importance of daily parental worries in explaining parental protective behaviors on a daily basis. Mindfulness emerged as a promising resilience factor in parents of children with T1D, resulting in less daily worries and protective parenting. These results have important clinical implications and point to the promising role of mindfulness interventions in this context. [less ▲]

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See detailPrag in der Zeit der Luxemburger Dynastie. Literatur, Religion und Herrschaftskulturen zwischen Bereicherung und Behauptung
Bendheim, Amelie UL; Sieburg, Heinz UL

Book published by transcript (2018)

Böhmen im 14. Jahrhundert kann als historischer Modellfall der Durchmischung, Konkurrenz und Bereicherung von Kulturen in einem komplexen Kommunikationsraum gesehen werden, der von Trägerschaften wie dem ... [more ▼]

Böhmen im 14. Jahrhundert kann als historischer Modellfall der Durchmischung, Konkurrenz und Bereicherung von Kulturen in einem komplexen Kommunikationsraum gesehen werden, der von Trägerschaften wie dem einheimischen Adel, dem regierenden Haus, dem städtischen Patriziat und der Geistlichkeit bestimmt wurde. Unter literaturwissenschaftlicher Perspektive zeichnet der Band das labile Gleichgewicht der Kräfte beispielhaft nach, welches das mehrsprachige und mehrkulturelle Prag in der Zeit der Luxemburger Dynastie erreichte – und auch bald wieder verlor. Daneben erfolgt ein Brückenschlag zur literarischen, kulturellen und politischen Situation der Neuzeit und Gegenwart. [less ▲]

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See detailPilotprojekt Schreibassistenzen in der Lehre. Die Wiener Writing Fellows Implementierung.
Entringer, Nathalie UL; Römmer-Nossek, Brigitte; Rismondo, Frane et al

in Niederdorfer, Lisa; Schmölzer-Eibinger, Sabine; Bushati, Bora (Eds.) et al Wissenschaftliches Schreiben lehren und lernen. Diagnose und Förderung wissenschaftlicher Textkompetenz in Schule und Universität. (2018)

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See detailInfluence of clustering on the magnetic properties and hyperthermia performance of iron oxide nanoparticles
Bender, Philipp Florian UL; Fock, J.; Hansen, M. F. et al

in Nanotechnology (2018), 29

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See detailExpressed protein profile of a Tectomicrobium and other microbial symbionts in the marine sponge Aplysina aerophoba as evidenced by metaproteomics.
Chaib De Mares, Maryam; Jimenez, Diego Javier; Palladino, Giorgia et al

in Scientific reports (2018), 8(1), 11795

Aplysina aerophoba is an emerging model marine sponge, with a well-characterized microbial community in terms of diversity and structure. However, little is known about the expressed functional ... [more ▼]

Aplysina aerophoba is an emerging model marine sponge, with a well-characterized microbial community in terms of diversity and structure. However, little is known about the expressed functional capabilities of its associated microbes. Here, we present the first metaproteomics-based study of the microbiome of A. aerophoba. We found that transport and degradation of halogenated and chloroaromatic compounds are common active processes in the sponge microbiomes. Our data further reveal that the highest number of proteins were affiliated to a sponge-associated Tectomicrobium, presumably from the family Entotheonellaceae, as well as to the well-known symbiont "Candidatus Synechococcus spongiarium", suggesting a high metabolic activity of these two microorganisms in situ. Evidence for nitric oxide (NO) conversion to nitrous oxide was consistently observed for Tectomicrobia across replicates, by production of the NorQ protein. Moreover, we found a potential energy-yielding pathway through CO oxidation by putative Chloroflexi bacteria. Finally, we observed expression of enzymes that may be involved in the transformation of chitin, glycoproteins, glycolipids and glucans into smaller molecules, consistent with glycosyl hydrolases predicted from analyses of the genomes of Poribacteria sponge symbionts. Thus, this study provides crucial links between expressed proteins and specific members of the A. aerophoba microbiome. [less ▲]

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See detailA year of monitoring 20 mesophilic full-scale bioreactors reveals the existence of stable but different core microbiomes in bio-waste and wastewater anaerobic digestion systems.
Calusinska, Magdalena; Goux, Xavier; Fossepre, Marie et al

in Biotechnology for biofuels (2018), 11

Background: Anaerobic digestion (AD) is a microbe-driven process of biomass decomposition to CH4 and CO2. In addition to renewable and cost-effective energy production, AD has emerged in the European ... [more ▼]

Background: Anaerobic digestion (AD) is a microbe-driven process of biomass decomposition to CH4 and CO2. In addition to renewable and cost-effective energy production, AD has emerged in the European Union as an environmentally friendly model of bio-waste valorisation and nutrient recycling. Nevertheless, due to the high diversity of uncharacterised microbes, a typical AD microbiome is still considered as "dark matter". Results: Using the high-throughput sequencing of small rRNA gene, and a monthly monitoring of the physicochemical parameters for 20 different mesophilic full-scale bioreactors over 1 year, we generated a detailed view of AD microbial ecology towards a better understanding of factors that influence and shape these communities. By studying the broadly distributed OTUs present in over 80% of analysed samples, we identified putatively important core bacteria and archaea to the AD process that accounted for over 70% of the whole microbial community relative abundances. AD reactors localised at the wastewater treatment plants were shown to operate with distinct core microbiomes than the agricultural and bio-waste treating biogas units. We also showed that both the core microbiomes were composed of low (with average community abundance </= 1%) and highly abundant microbial populations; the vast majority of which remains yet uncharacterised, e.g. abundant candidate Cloacimonetes. Using non-metric multidimensional scaling, we observed microorganisms grouping into clusters that well reflected the origin of the samples, e.g. wastewater versus agricultural and bio-waste treating biogas units. The calculated diversity patterns differed markedly between the different community clusters, mainly due to the presence of highly diverse and dynamic transient species. Core microbial communities appeared relatively stable over the monitoring period. Conclusions: In this study, we characterised microbial communities in different AD systems that were monitored over a 1-year period. Evidences were shown to support the concept of a core community driving the AD process, whereas the vast majority of dominant microorganisms remain yet to be characterised. [less ▲]

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See detail3D meso-scale modelling of foamed concrete based on X-ray Computed Tomography
Nguyen, Tuan; Ghazlan, Abdallah; Kashani, Alireza et al

in Construction and Building Materials (2018), 188

Foamed concrete has been widely used in infrastructure construction and poses new challenges to design and modelling. This paper investigates the behaviour of foamed concrete with the help of X-ray ... [more ▼]

Foamed concrete has been widely used in infrastructure construction and poses new challenges to design and modelling. This paper investigates the behaviour of foamed concrete with the help of X-ray Computed Tomography (XCT), which is capable of characterising the microstructure of foamed concrete. An in situ compressive test-XCT scan is carried out to observe the failure mechanism of foamed concrete by XCT when subjected to compression load. A meso-scale simulation based on XCT images is conducted to simulate the behaviour of foamed concrete. An algorithm that directly reconstructs the meso-scale model from XCT images is developed. The experimental and numerical results show that foamed concrete exhibits a significant change in mechanical behaviour; it is less brittle compared to the response of dense samples. However, the reduction in the level of brittleness is accompanied by a significant decrease in compressive strength. Failure development inside samples is successfully captured by the XCT scan and the meso-scale modelling. The topology of foamed structures, in particular the chain of interconnected pores, influences the failure mechanism of foamed concrete. The combination of XCT scan and meso-scale modelling provides a comprehensive framework to understand the mechanical behaviour of foamed concrete. [less ▲]

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See detailSequential Isolation of DNA, RNA, Protein, and Metabolite Fractions from Murine Organs and Intestinal Contents for Integrated Omics of Host-Microbiota Interactions.
Shah, Pranjul UL; Muller, Emilie UL; Lebrun, Laura UL et al

in Microbial Proteomics (2018)

The gastrointestinal microbiome plays a central role in health and disease. Imbalances in the microbiome, also referred to as dysbiosis, have recently been associated with a number of human idiopathic ... [more ▼]

The gastrointestinal microbiome plays a central role in health and disease. Imbalances in the microbiome, also referred to as dysbiosis, have recently been associated with a number of human idiopathic diseases ranging from metabolic to neurodegenerative. However, to causally link specific microorganisms or dysbiotic communities with tissue-specific and/or systemic disease-associated phenotypes, systematic in vivo studies are fundamental. Gnotobiotic mouse models have proven to be particularly useful for the elucidation of microbiota-associated characteristics as they provide a means to conduct targeted perturbations followed by analyses of induced localized and systemic effects. Here, we describe a methodology in the framework of systems biology which allows the comprehensive isolation of high quality biomolecular fractions (DNA, RNA, proteins and metabolites) from limited and/or heterogeneous sample material derived from murine brain, liver, and colon tissues, as well as from intestinal contents (fecal pellets and fecal masses). The obtained biomolecular fractions are compatible with current high-throughput genomic, transcriptomic, proteomic, and metabolomic analyses. The resulting data fulfills the premise of systematic measurements and allows the detailed study of tissue-specific and/or systemic effects of host-microbiota interactions in relation to health and disease. [less ▲]

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See detailDiachrone Interkulturalität und/als Gattungsgeschichte. Mit Heinrich von Kleists "Penthesilea" als Fallbeispiel
Heimböckel, Dieter UL

in Wiegmann, Eva (Ed.) Diachrone Interkulturalität (2018)

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See detailSystems ecology of the human microbiome
Wilmes, Paul UL

Scientific Conference (2018)

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See detailStill Great: Subjective Intergenerational Mobility and Income Inequality
Bar-Haim, Eyal UL

in Comparative Sociology (2018), 17(5), 496-518

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See detailAdaptive Isogeometric analysis for plate vibrations: An efficient approach of local refinement based on hierarchical a posteriori error estimation
Yu, Peng; Anitescu, Cosmin; Tomar, Satyendra UL et al

in Computer Methods in Applied Mechanics and Engineering (2018), 342

This paper presents a novel methodology of local adaptivity for the frequency-domain analysis of the vibrations of Reissner–Mindlin plates. The adaptive discretization is based on the recently developed ... [more ▼]

This paper presents a novel methodology of local adaptivity for the frequency-domain analysis of the vibrations of Reissner–Mindlin plates. The adaptive discretization is based on the recently developed Geometry Independent Field approximaTion (GIFT) framework, which may be seen as a generalization of the Iso-Geometric Analysis (IGA).Within the GIFT framework, we describe the geometry of the structure exactly with NURBS (Non-Uniform Rational B-Splines), whilst independently employing Polynomial splines over Hierarchical T-meshes (PHT)-splines to represent the solution field. The proposed strategy of local adaptivity, wherein a posteriori error estimators are computed based on inexpensive hierarchical h-refinement, aims to control the discretization error within a frequency band. The approach sweeps from lower to higher frequencies, refining the mesh appropriately so that each of the free vibration mode within the targeted frequency band is sufficiently resolved. Through several numerical examples, we show that the GIFT framework is a powerful and versatile tool to perform local adaptivity in structural dynamics. We also show that the proposed adaptive local h-refinement scheme allows us to achieve significantly faster convergence rates than a uniform h-refinement. [less ▲]

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See detailMechanisms of Persistence of the Ammonia-Oxidizing Bacteria Nitrosomonas to the Biocide Free Nitrous Acid.
Laloo, Andrew E.; Wei, Justin; Wang, Dongbo et al

in Environmental science & technology (2018), 52(9), 5386-5397

Free nitrous acid (FNA) exerts a broad range of antimicrobial effects on bacteria, although susceptibility varies considerably among microorganisms. Among nitrifiers found in activated sludge of ... [more ▼]

Free nitrous acid (FNA) exerts a broad range of antimicrobial effects on bacteria, although susceptibility varies considerably among microorganisms. Among nitrifiers found in activated sludge of wastewater treatment processes (WWTPs), nitrite-oxidizing bacteria (NOB) are more susceptible to FNA compared to ammonia-oxidizing bacteria (AOB). This selective inhibition of NOB over AOB in WWTPs bypasses nitrate production and improves the efficiency and costs of the nitrogen removal process in both the activated sludge and anaerobic ammonium oxidation (Anammox) system. However, the molecular mechanisms governing this atypical tolerance of AOB to FNA have yet to be understood. Herein we investigate the varying effects of the antimicrobial FNA on activated sludge containing AOB and NOB using an integrated metagenomics and label-free quantitative sequential windowed acquisition of all theoretical fragment ion mass spectra (SWATH-MS) metaproteomic approach. The Nitrosomonas genus of AOB, on exposure to FNA, maintains internal homeostasis by upregulating a number of known oxidative stress enzymes, such as pteridine reductase and dihydrolipoyl dehydrogenase. Denitrifying enzymes were upregulated on exposure to FNA, suggesting the detoxification of nitrite to nitric oxide. Interestingly, proteins involved in stress response mechanisms, such as DNA and protein repair enzymes, phage prevention proteins, and iron transport proteins, were upregulated on exposure to FNA. In addition enzymes involved in energy generation were also upregulated on exposure to FNA. The total proteins specifically derived from the NOB genus Nitrobacter was low and, as such, did not allow for the elucidation of the response mechanism to FNA exposure. These findings give us an understanding of the adaptive mechanisms of tolerance within the AOB Nitrosomonas to the biocidal agent FNA. [less ▲]

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See detailMeasuring soil sustainability via soil resilience.
Ludwig, Marie; Wilmes, Paul UL; Schrader, Stefan

in The Science of the total environment (2018), 626

Soils are the nexus of water, energy and food, which illustrates the need for a holistic approach in sustainable soil management. The present study therefore aimed at identifying a bioindicator for the ... [more ▼]

Soils are the nexus of water, energy and food, which illustrates the need for a holistic approach in sustainable soil management. The present study therefore aimed at identifying a bioindicator for the evaluation of soil management sustainability in a cross-disciplinary approach between soil science and multi-omics research. For this purpose we first discuss the remaining problems and challenges of evaluating sustainability and consequently suggest one measurable bioindicator for soil management sustainability. In this concept, we define soil sustainability as the maintenance of soil functional integrity. The potential to recover functional and structural integrity after a disturbance is generally defined as resilience. This potential is a product of the past and the present soil management, and at the same time prospect of possible soil responses to future disturbances. Additionally, it is correlated with the multiple soil functions and hence reflecting the multifunctionality of the soil system. Consequently, resilience can serve as a bioindicator for soil sustainability. The measurable part of soil resilience is the response diversity, calculated from the systematic contrasting of multi-omic markers for genetic potential and functional activity, and referred to as potential Maximum Ecological Performance (MEPpot) in this study. Calculating MEPpot will allow to determine the thresholds of resistance and resilience and potential tipping points for a regime shift towards irreversible or permanent unfavorable soil states for each individual soil considered. The calculation of such ecosystem thresholds is to our opinion the current global cross-disciplinary challenge. [less ▲]

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See detailMotifs en transhumance, Michaux, Ben Jelloun et autres
Roelens, Nathalie UL

Presentation (2018)

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