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See detailUniversity vs. Research Institute? The Dual Pillars of German Science Production, 1950–2010
Dusdal, Jennifer UL; Powell, Justin J W UL; Baker, David UL et al

in Minerva: A Review of Science, Learning and Policy (2020)

The world’s third largest producer of scientific research, Germany, is the origin of the research university and the independent, extra-university research institute. Its dual-pillar research policy ... [more ▼]

The world’s third largest producer of scientific research, Germany, is the origin of the research university and the independent, extra-university research institute. Its dual-pillar research policy differentiates these organizational forms functionally: universities specialize in advanced research-based teaching; institutes specialize intensely on research. Over the past decades this policy affected each sector differently: while universities suffered a lingering “legitimation crisis,” institutes enjoyed deepening “favored sponsorship”—financial and reputational advantages. Universities led the nation’s reestablishment of scientific prominence among the highly competitive European and global science systems after WWII. But sectoral analysis of contributions to science, technology, engineering, mathematics, and medical and health journal publications (1950–2010) finds that Germany’s small to medium-sized independent research institutes have made significant, growing contributions, particularly in publishing in higher impact journals proportionally more than their size. Simultaneously—despite dual-pillar policy implications—the university sector continues to be absolutely and relatively successful; not eclipsed by the institutes. Universities have consistently produced two-thirds of the nation’s publications in the highest quality journals since at least 1980 and have increased publications at a logarithmic rate; higher than the international mean. Indeed, they led Germany into the global mega-science style of production. Contrary to assumed benefits of functional differentiation, our results indicate that relative to their size, each sector has produced approximately similar publication records. While institutes have succeeded, the larger university sector, despite much less funding growth, has remained fundamental to German science production. Considering these findings, we discuss the future utility of the dual-pillar policy. [less ▲]

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See detailOptimization assisted redesigning a structure of a hydrogen valve: the redesign process and numerical evaluations
Cao, Thanh Binh UL; Kedziora, Slawomir UL; Sellen, Stephan UL et al

in International Journal on Interactive Design and Manufacturing (2020)

This study introduced the redesign process of an automotive hydrogen valve. The process relied on the structural optimization approach, which used to build up the new valves having promising stiffness and ... [more ▼]

This study introduced the redesign process of an automotive hydrogen valve. The process relied on the structural optimization approach, which used to build up the new valves having promising stiffness and the lowest possible weights. To achieve the goals, the study was proposed to be taken place via the three main stages. These stages included topology optimization, lattice optimization, as well as numerical evaluations. The achieved results firstly indicated that the two newly designed valves possessed longer life and lower mass than the original valve. Especially, the topology optimized one could withstand more than 5E4 working cycles in the pre-treated condition before the first crack would be nucleated. The results also pointed out the influences of the pre-treatment pressure on the fatigue performance of the hydrogen valve. Within the examined ranges of the pressure, increasing the pressure’s magnitudes tended to shorten the fatigue life of the topology optimized valve. Additionally, the results highlighted the impact of the employed materials on the estimated fatigue life of such a non-treated structure. In the highlights, the considered steel valves could function normally far beyond 1.5E5 working cycles while the aluminum valves would have an initial crack formation prior to reaching 3E3 cycles. The results also suggested that further practical evidence is needed to not only confirm whether the selected printed aluminum is among the promising candidate materials of the hydrogen valve but also to support the described evaluations. [less ▲]

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See detailOn the order of the reductions of algebraic numbers
Sgobba, Pietro UL

Presentation (2020, February 06)

Let K be a number field, and let G be a finitely generated and torsion-free subgroup of K*. For almost all primes p of K, we consider the order of the cyclic group (G mod p), and ask whether this number ... [more ▼]

Let K be a number field, and let G be a finitely generated and torsion-free subgroup of K*. For almost all primes p of K, we consider the order of the cyclic group (G mod p), and ask whether this number lies in a given arithmetic progression. The density of primes for which this condition holds exists (this generalizes a result of Ziegler from 2006) and it is, under certain assumptions, a computable positive rational number. We also present a uniformity property concerning some special cases. This is a joint work with A. Perucca. [less ▲]

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See detailEffects of Annealing and Light on Co-evaporated Methylammonium Lead Iodide Perovskites using Kelvin Probe Force Microscopy in Ultra-High Vacuum
Gallet, Thibaut UL; Martin Lanzoni, Evandro UL; Redinger, Alex UL

in 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) (2020, February 06)

Careful surface analysis is essential to understand the electronic and ionic behaviors in perovskite absorbers. In this contribution we discuss Kelvin probe force microscopy performed in ultra-high vacuum ... [more ▼]

Careful surface analysis is essential to understand the electronic and ionic behaviors in perovskite absorbers. In this contribution we discuss Kelvin probe force microscopy performed in ultra-high vacuum on as-grown and annealed co-evaporated methylammonium lead iodide perovskite thin films. By comparing the contact potential difference upon annealing and illumination, we find that annealing increases the average workfunction, indicating a change either in doping or in surface composition. Illumination also increases the average workfunction, indicating a p-type absorber, by reducing band bending as the photo-generated carriers screen the surface states. The effect of light shows a two-step process, with a first fast trend, linked to the surface photovoltage and a second slower trend indicating a possible redistribution of mobile charges. [less ▲]

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See detailDenis Scuto an Dr. Gerben Zaagsma iwwer den FORUM Z Holocaust: History and Memory
Zaagsma, Gerben UL; Scuto, Denis UL

Diverse speeches and writings (2020)

Déi zwee Historiker erzielen iwwer den FORUM Z, organiséiert vum C2DH, deen haut iwwer den Theema Holocaust: History and Memory, geet. De Forum zu Mondorf an der Orangerie vum Thermalbad ass agedeelt an ... [more ▼]

Déi zwee Historiker erzielen iwwer den FORUM Z, organiséiert vum C2DH, deen haut iwwer den Theema Holocaust: History and Memory, geet. De Forum zu Mondorf an der Orangerie vum Thermalbad ass agedeelt an dräi Deeler: 1. The Holocaust and Jewish life in Luxembourg: filling the gaps 2. Holocaust research in the digital age 3. Combating anti-Semitism in contemporary Europe [less ▲]

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See detailRoundtable - Combating anti-Semitism in contemporary Europe
Zaagsma, Gerben UL; Santer, Georges; Feldman, David et al

Diverse speeches and writings (2020)

Roundtable Combating anti-Semitism in contemporary Europe What is the state of anti-Semitism in Europe, and Luxembourg, today? How can it be situated within the broader context of rising hate speech and ... [more ▼]

Roundtable Combating anti-Semitism in contemporary Europe What is the state of anti-Semitism in Europe, and Luxembourg, today? How can it be situated within the broader context of rising hate speech and crime, online and offline? What methods are being proposed to combat it? How does it relate to politics and the broader memory battles that are being fought in Europe today? These will be the themes addressed during a round table discussion with the following participants: - Dr. Gerben Zaagsma (moderator, C²DH) - Georges Santer (Ambassador, Chair of the International Holocaust Remembrance Alliance/IHRA) - Prof. David Feldman (Director, Pears Institute for the Study of Antisemitism, Birkbeck, University of London) - François Moyse (Chair, European Association for the Preservation and Promotion of Jewish Culture and Heritage) [less ▲]

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See detailLe relations belgo-luxembourgeoises: une mise en perspective historique
Brüll, Christoph UL

Scientific Conference (2020, February 05)

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See detailOpening the black box of the social learning process: The case of community of practices
Boughattas, Yosra; Geraudel, Mickaël UL; Claeye, Frederic

Scientific Conference (2020, February 04)

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See detailUrban Green Amenity and City Structure
Tran, Thi Thu Huyen UL

Doctoral thesis (2020)

One of the main components that make cities attractive to their residents is their public park and garden systems. Green urban areas from a small community garden to famous areas such as `Jardin du ... [more ▼]

One of the main components that make cities attractive to their residents is their public park and garden systems. Green urban areas from a small community garden to famous areas such as `Jardin du Luxembourg' in Paris not only shape the face of the city but are a quintessential aspect of the quality of life for local inhabitants. They offer places for local recreation, beautiful views, cleaner air and many other advantages. Recent research has validated the connection between urban parks and the well-being of the city's inhabitants. Although green urban areas might seem to be meagre in comparison with other natural ecosystems such as wetlands or forests, the value of the environmental, recreational, and other services they offer is likely to be disproportionally high due to their strategic locations. This dissertation focuses on studying the optimal provision of green urban areas and the welfare effects of a substantial change in green provision policies in the presence of other types of land uses and adverse shocks. It comprises four papers (chapters). [less ▲]

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See detailN point Virasoro algebras considered as Krichever - Novikov type algebras
Schlichenmaier, Martin UL

Scientific Conference (2020, February 04)

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See detailChristof Schöch lectures on the Use and Abuse of Word Embedding
Kamlovskaya, Ekaterina UL

Article for general public (2020)

A blog post reporting on a lecture about the use of word embeddings in humanities.

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See detailUne juste présence du passé?
Scuto, Denis UL

Article for general public (2020)

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See detailLe Maître secret, 4e grade du REAA : Sortir de la Loge, entrer dans le Temple et se rapprocher du Saint des Saints
Meyers, Christian UL

Conference given outside the academic context (2020)

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See detailIdentifying Unintended Harms of Cybersecurity Measures
Chua, Yi Ting; Parkin, Simon; Edwards, Matthew et al

in Proceedings of ECRIME 2019 (2020, February 01)

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See detailBankruptcy protection in airline markets: Does the impact vary in international and US domestic markets?
Mantin, Benny UL; Forsyth, Peter; Bock, Sebastian et al

in Transportation Research. Part A, General (2020), 132

We study the effects of Chapter 11 bankruptcy protection on competitive product pricing in both domestic and international markets using data from the airline industry. We find a decline of about 5% in ... [more ▼]

We study the effects of Chapter 11 bankruptcy protection on competitive product pricing in both domestic and international markets using data from the airline industry. We find a decline of about 5% in domestic markets and an even more significant drop in international markets. Further, in international markets the competing carriers respond by dropping their prices as well, whereas they slightly increase them domestically. By contrast, existing literature considers only domestic markets finding a more moderate fare drop of about 3% in domestic markets by the bankrupt carrier, with mixed results on the fare drop by competitors. [less ▲]

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See detailShort paper: Mechanized Proofs of Verifiability and Privacy in a paper-based e-voting Scheme
Zollinger, Marie-Laure UL; Roenne, Peter UL; Ryan, Peter UL

in International Conference on Financial Crypto Workshop on Advances in Secure Electronic Voting (2020, February)

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See detailPearls of bipolar epistemic logic
Bisdorff, Raymond UL

Learning material (2020)

In this part of the Digraph3 documentation, we provide an insight in computational enhancements one may get when working in a bipolar-valued epistemic logical framework, like easily coping with missing ... [more ▼]

In this part of the Digraph3 documentation, we provide an insight in computational enhancements one may get when working in a bipolar-valued epistemic logical framework, like easily coping with missing data and uncertain criterion significance weights, computing valued ordinal correlations between bipolar-valued outranking digraphs, solving bipolar-valued Berge kernel equation systems, and testing for stability of outranking statements when facing only ordinal criteria significance weights. [less ▲]

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See detailHow to actively protect against dementia. Epidemiological evidence from Luxembourg
Leist, Anja UL

Presentation (2020, February)

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See detailPhonon coupling and shallow defects in CuInS2
Lomuscio, Alberto UL; Sood, Mohit UL; Melchiorre, Michele UL et al

in Physical Review. B (2020), 101(8), 085119-

Detailed reference viewed: 89 (5 UL)