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Peer Reviewed
See detail'Wat d'Hemecht as, dat froen s'oft' - Die Konstruktion der Staatsbürger im Luxemburger Naturwissenschaftscurriculum
Schreiber, Catherina UL

in Götz, Margarethe; Vogt, Michaela (Eds.) Schulwissen für und über Kinder (2016)

Detailed reference viewed: 131 (6 UL)
See detailWat maache mer ? Wou gi mer ? : verwirrende Gedanken zur "Zeit der grossen Verwirrung"
Scuto, Denis UL

Article for general public (1990)

Detailed reference viewed: 73 (1 UL)
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See detailWatch out for This Commit! A Study of Influential Software Changes
Li, Daoyuan UL; Li, Li UL; Kim, Dongsun UL et al

in Journal of Software: Evolution and Process (2019)

One single code change can significantly influence a wide range of software systems and their users. For example, 1) adding a new feature can spread defects in several modules, while 2) changing an API ... [more ▼]

One single code change can significantly influence a wide range of software systems and their users. For example, 1) adding a new feature can spread defects in several modules, while 2) changing an API method can improve the performance of all client programs. Developers often may not clearly know whether their or others’ changes are influential at commit time. Rather, it turns out to be influential after affecting many aspects of a system later. This paper investigates influential software changes and proposes an approach to identify them early, i.e., immediately when they are applied. We first conduct a post- mortem analysis to discover existing influential changes by using intuitions such as isolated changes and changes referred by other changes in 10 open source projects. Then we re-categorize all identified changes through an open-card sorting process. Subsequently, we conduct a survey with 89 developers to confirm our influential change categories. Finally, from our ground truth we extract features, including metrics such as the complexity of changes, terms in commit logs and file centrality in co-change graphs, to build ma- chine learning classifiers. The experiment results show that our prediction model achieves overall with random samples 86.8% precision, 74% recall and 80.4% F-measure respectively. [less ▲]

Detailed reference viewed: 274 (22 UL)
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See detailWater and Dust: Recovering Washed-Out Pasts of Industry in Luxembourg
Thyssen, Geert UL; Dittrich, Klaus UL

in Burke, Catherine; Grosvenor, Ian; Haenggeli-Jenni, Béatrice (Eds.) et al Education across Europe: A Visual Conversation (2014)

Detailed reference viewed: 68 (15 UL)
See detailWater and Sea in Word and Image / L’Eau et la mer dans les textes et les images
Erchadi, Armand UL

Book published by Brill (2023)

Detailed reference viewed: 37 (0 UL)
See detailWater and Sea in Word and Image / L'Eau et la mer dans les textes et les images
Roelens, Nathalie UL

Book published by Brill (in press)

Detailed reference viewed: 131 (6 UL)
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See detailWater Chemistry and Hydrometeorology in a Glacierized Catchment in the Polar Urals, Russia
STACHNIK, Łukasz1; WAŁACH, Piotr; UZAROWICZ, Łukasz et al

in Journal of Mountain Science (2014), 11(5), 1097-1111

This study aims to determine the relationships between local meteorological conditions, proglacial river discharge and biogeochemical processes operating in a periglacial basin located in the Polar Ural ... [more ▼]

This study aims to determine the relationships between local meteorological conditions, proglacial river discharge and biogeochemical processes operating in a periglacial basin located in the Polar Ural mountain range, Russia. Fieldwork was conducted in the catchment of Obruchev Glacier (13 km2) during the summer peak flow period in 2008. River discharge was dominated by snowmelt and changed from 3300 l s-1 to less than 1000 l s-1. The mean daily air temperatures of stations situated in the mountain tundra and near Obruchev Glacier from July 11th to August 1st 2008 were 14.4°C and 10.3°C, respectively. The glacial river had low total dissolved solids varying from 4.5 to 9 mg l-1 and coefficients of correlation between Na+ and Cl-, K+ and Cl-, as well as NH4+ and Cl- were 0.94, 0.90 and 0.84, respectively. Rainfall events affected the snowmelt initiation and provided an essential part of the discharge during the intense snowmelt period, which occurred from July 11th to July 18th 2008. Data showed that Na+ and K+ in the surface water derived from snowmelt rather than chemical weathering of silicates. Also, it was obtained that NO3- derived from the melting snowpack, whereas ammonification occurring under the snowpacks was the primary source for NH4+. [less ▲]

Detailed reference viewed: 142 (1 UL)
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See detailThe Water Load Test As a Measure of Gastric Interoception: Development of a Two-Stage Protocol and Application to a Healthy Female Population
Van Dyck, Zoé UL; Vögele, Claus UL; Blechert, Jens et al

in PLoS ONE (2016), 11(9), 0163574

The sensitivity for one’s own internal body signals (i.e., interoception) has been demonstrated to play an important role in the pathogenesis of eating and weight disorders. Most previous measures ... [more ▼]

The sensitivity for one’s own internal body signals (i.e., interoception) has been demonstrated to play an important role in the pathogenesis of eating and weight disorders. Most previous measures assessing interoceptive processing have not, or only partly, captured perception of hunger and satiety cues, which is a core aspect of interoceptive deficits in eating disorders. In addition, methods used to measure sensitivity to gastric signals are heterogeneous and findings inconsistent. The primary aim of the present study was to establish a standardised test to measure gastric interoception, and to provide normative data using a non-clinical adult sample. The two-step Water Load Test (WLT-II) involves ingestion of non-caloric water until perceived satiation (step 1) and until maximum fullness (step 2). The WLT-II consists of several variables: Besides volumes of water ingested until satiation and maximum fullness expressed in ml, percentage of satiation to maximum fullness is calculated as an individual index of gastric interoception that is not confounded with stomach capacity. Ninety-nine healthy women participated in the study. Measures included the WLT-II, the heartbeat tracking test, a self-report questionnaire assessing subjective sensations, and the Eating Disorder Inventory-2. Twenty-eight participants underwent test-retest of the WLT-II. Results suggest that the WLT-II is a valid and reliable measure of gastric interoception. Importantly, satiation volume and percentage of satiation to maximum fullness were strongly positively related to self-reported bulimic symptoms, indicating that the WLT-II could emerge as a useful clinical tool to measure interoceptive processing in the field of eating disorders. [less ▲]

Detailed reference viewed: 229 (16 UL)
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See detailWater science must be Open Science
Schymanski, Emma UL; Schymanski, Stanislaus UL

in Nature Water (2023), 1(1), 4--6

Since water is a common good, the outcome of water-related research should be accessible to everyone. Since Open Science is more than just open access research articles, journals must work with the ... [more ▼]

Since water is a common good, the outcome of water-related research should be accessible to everyone. Since Open Science is more than just open access research articles, journals must work with the research community to enable fully open and FAIR science [less ▲]

Detailed reference viewed: 69 (12 UL)
Peer Reviewed
See detailWater Security in Cross-Border Regions: What Relevance for Federal Human Security Regimes?
Koff, Harlan UL; Maganda, Carmen UL

in Garrick, Dustin; Anderson, George; Connell, Daniel (Eds.) et al Federal Rivers: Managing Water in Multi-layered Political Systems (2014)

Detailed reference viewed: 147 (1 UL)
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See detailWater storage dynamics within karst vadose zone assessed by joint ground-based gravity and ERT monitoring
Watlet, Arnaud; Van Camp, Michel; Francis, Olivier UL et al

Scientific Conference (2018)

Detailed reference viewed: 33 (2 UL)
Peer Reviewed
See detailWave propagation in networks: a system theoretic approach
Aalto, Atte UL; Malinen, Jarmo

in Proceedings of the 18th World Congress of the IFAC (2011)

Detailed reference viewed: 104 (0 UL)
See detailWAVEFORM DESIGN FOR AUTOMOTIVE JOINT RADAR-COMMUNICATION SYSTEM
Dokhanchi, Sayed Hossein UL

Doctoral thesis (2020)

Detailed reference viewed: 226 (41 UL)
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See detailWaveform Design for Joint Radar-Communications with Low Complexity Analog Components
Kaushik, Aryan; Arora, Aakash; Tsinos,Christos et al

Poster (2022, March)

In this paper, we aim to design an efficient and low hardware complexity based dual-function multiple-input multiple-output (MIMO) joint radar-communication (JRC) system. It is implemented via a low ... [more ▼]

In this paper, we aim to design an efficient and low hardware complexity based dual-function multiple-input multiple-output (MIMO) joint radar-communication (JRC) system. It is implemented via a low complexity analog architecture, constituted by a phase shifting network and variable gain amplifier. The proposed system exploits the multiple antenna transmitter for the simultaneous communication with multiple downlink users and radar target detection. The transmit waveform of the proposed JRC system is designed to minimize the downlink multi-user interference such that the desired radar beampattern is achieved and the architecture specific constraints are satisfied. The resulting optimization problem is non-convex and in general difficult to solve. We propose an efficient algorithmic solution based on the primal-dual framework. The numerical results show the effectiveness of the proposed approach. [less ▲]

Detailed reference viewed: 14 (0 UL)
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See detailWavelet Dynamic Conditional Correlation GARCH model : WDCC-GARCH
Nsaoudi, Ange; Terraza, Virginie UL

E-print/Working paper (2016)

Detailed reference viewed: 170 (5 UL)
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See detailWavelet methods to study the pointwise regularity of the generalized Rosenblatt process
Daw, Lara UL; Loosveldt, Laurent UL

in Electronic Journal of Probability (2022), 27

We identify three types of pointwise behaviour in the regularity of the (generalized) Rosenblatt process. This extends to a non Gaussian setting previous results known for the (fractional) Brownian motion ... [more ▼]

We identify three types of pointwise behaviour in the regularity of the (generalized) Rosenblatt process. This extends to a non Gaussian setting previous results known for the (fractional) Brownian motion. On this purpose, fine bounds on the increments of the Rosenblatt process are needed. Our analysis is essentially based on various wavelet methods. [less ▲]

Detailed reference viewed: 80 (19 UL)
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See detailWavelet-Type Expansion of Generalized Hermite Processes with rate of convergence
Ayache, Antoine; Hamonier, Julien; Loosveldt, Laurent UL

E-print/Working paper (2023)

Wavelet-type random series representations of the well-known Fractional Brownian Motion (FBM) and many other related stochastic processes and fields have started to be introduced since more than two ... [more ▼]

Wavelet-type random series representations of the well-known Fractional Brownian Motion (FBM) and many other related stochastic processes and fields have started to be introduced since more than two decades. Such representations provide natural frameworks for approximating almost surely and uniformly rough sample paths at different scales and for study of various aspects of their complex erratic behavior. Hermite process of an arbitrary integer order d, which extends FBM, is a paradigmatic example of a stochastic process belonging to the dth Wiener chaos. It was introduced very long time ago, yet many of its properties are still unknown when d ≥ 3. In a paper published in 2004, Pipiras raised the problem to know whether wavelet-type random series representations with a well-localized smooth scaling function, reminiscent to those for FBM due to Meyer, Sellan and Taqqu, can be obtained for a Hermite process of any order d. He solved it in this same paper in the particular case d = 2 in which the Hermite process is called the Rosenblatt process. Yet, the problem remains unsolved in the general case d ≥ 3. The main goal of our article is to solve it, not only for usual Hermite processes but also for generalizations of them. Another important goal of our article is to derive almost sure uniform estimates of the errors related with approximations of such processes by scaling functions parts of their wavelet-type random series representations. [less ▲]

Detailed reference viewed: 45 (2 UL)
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See detailWavelike charge density fluctuations and van der Waals interactions at the nanoscale
Ambrosetti, Alberto; Ferri, Nicola; DiStasio Jr., Robert A. et al

in Science (2016), 351(6278), 1171-1176

Recent experiments on noncovalent interactions at the nanoscale have challenged the basic assumptions of commonly used particle- or fragment-based models for describing van der Waals (vdW) or dispersion ... [more ▼]

Recent experiments on noncovalent interactions at the nanoscale have challenged the basic assumptions of commonly used particle- or fragment-based models for describing van der Waals (vdW) or dispersion forces. We demonstrate that a qualitatively correct description of the vdW interactions between polarizable nanostructures over a wide range of finite distances can only be attained by accounting for the wavelike nature of charge density fluctuations. By considering a diverse set of materials and biological systems with markedly different dimensionalities, topologies, and polarizabilities, we find a visible enhancement in the nonlocality of the charge density response in the range of 10 to 20 nanometers. These collective wavelike fluctuations are responsible for the emergence of nontrivial modifications of the power laws that govern noncovalent interactions at the nanoscale. [less ▲]

Detailed reference viewed: 890 (85 UL)