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See detailThermodynamics of Majority-Logic Decoding in Information Erasure
Sheng, Shiqi; Herpich, Tim UL; Diana, Giovanni et al

in Entropy (2019), 21(3), 284

Detailed reference viewed: 142 (6 UL)
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See detailThermodynamics of Quantum Information Flows
Ptaszynski, Krzysztof; Esposito, Massimiliano UL

in Physical Review Letters (2019), 122(15),

Detailed reference viewed: 34 (2 UL)
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See detailThermodynamics of quantum-jump-conditioned feedback control
Strasberg, P.; Schaller, G.; Brandes, T. et al

in Physical Review. E : Statistical, Nonlinear, and Soft Matter Physics (2013), 88(062107),

We consider open quantum systems weakly coupled to thermal reservoirs and subjected to quantum feedback operations triggered with or without delay by monitored quantum jumps. We establish a thermodynamic ... [more ▼]

We consider open quantum systems weakly coupled to thermal reservoirs and subjected to quantum feedback operations triggered with or without delay by monitored quantum jumps. We establish a thermodynamic description of such systems and analyze how the first and second law of thermodynamics are modified by the feedback. We apply our formalism to study the efficiency of a qubit subjected to a quantum feedback control and operating as a heat pump between two reservoirs. We also demonstrate that quantum feedbacks can be used to stabilize coherences in nonequilibrium stationary states which in some cases may even become pure quantum states. [less ▲]

Detailed reference viewed: 199 (5 UL)
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See detailThermodynamics of the polaron master equation at finite bias
Krause, T.; Brandes, T.; Esposito, Massimiliano UL et al

in Journal of Chemical Physics (2015), 142(13),

We study coherent transport through a double quantum dot. Its two electronic leads induce electronic matter and energy transport and a phonon reservoir contributes further energy exchanges. By treating ... [more ▼]

We study coherent transport through a double quantum dot. Its two electronic leads induce electronic matter and energy transport and a phonon reservoir contributes further energy exchanges. By treating the system-lead couplings perturbatively, whereas the coupling to vibrations is treated non-perturbatively in a polaron-transformed frame, we derive a thermodynamic consistent low-dimensional master equation. When the number of phonon modes is finite, a Markovian description is only possible when these couple symmetrically to both quantum dots. For a continuum of phonon modes however, also asymmetric couplings can be described with a Markovian master equation. We compute the electronic current and dephasing rate. The electronic current enables transport spectroscopy of the phonon frequency and displays signatures of Franck-Condon blockade. For infinite external bias but finite tunneling bandwidths, we find oscillations in the current as a function of the internal bias due to the electron-phonon coupling. Furthermore, we derive the full fluctuation theorem and show its identity to the entropy production in the system. (C) 2015 AIP Publishing LLC. [less ▲]

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See detailThermodynamics with Continuous Information Flow
Horowitz, Jordan M.; Esposito, Massimiliano UL

in Physical Review X (2014), 4

as nonautonomous systems described by stochastic thermodynamics. We demonstrate how information is <br />continuously generated in an auxiliary system and then transferred to a relevant system that can ... [more ▼]

as nonautonomous systems described by stochastic thermodynamics. We demonstrate how information is <br />continuously generated in an auxiliary system and then transferred to a relevant system that can utilize it to <br />fuel otherwise impossible processes. Indeed, while the joint system satisfies the second law, the entropy <br />balance for the relevant system is modified by an information term related to the mutual information rate <br />between the two systems. We show that many important results previously derived for nonautonomous <br />Maxwell demons can be recovered from our formalism and use a cycle decomposition to analyze the <br />continuous information flow in autonomous systems operating at a steady state. A model system is used to <br />illustrate our findings. [less ▲]

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See detailThermoelectric efficiency at maximum power in a quantum dot
Esposito, Massimiliano UL; Lindenberg, K.; Van den Broeck, C.

in Epl (2009), 85(6),

Detailed reference viewed: 68 (1 UL)
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See detailThermophilic Digestion of Cellulose - Investigation of the Inhibitory State
Golkowska, Katarzyna UL; Greger, Manfred UL

in Internationale Wissenschaftstagung Biogas Science 2009 (2009)

Poster presentation at Internationale Wissenschaftstagung Biogas Science 2009

Detailed reference viewed: 27 (2 UL)
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See detailThermophilic digestion of cellulose at high organic loading rates
Golkowska, Katarzyna UL; Greger, Manfred UL

in Engineering in Life Sciences (2010), 10(6), 600-606

Detailed reference viewed: 109 (0 UL)
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See detailThermotropic Liquid Crystal-Assisted Chemical and Biological Sensors
Popov, Nicolai; Honaker, Lawrence William UL; Popova, Maia et al

in Materials (2017), 11(20),

In this review article, we analyze recent progress in the application of liquid crystal-assisted advanced functional materials for sensing biological and chemical analytes. Multiple research groups ... [more ▼]

In this review article, we analyze recent progress in the application of liquid crystal-assisted advanced functional materials for sensing biological and chemical analytes. Multiple research groups demonstrate substantial interest in liquid crystal (LC) sensing platforms, generating an increasing number of scientific articles. We review trends in implementing LC sensing techniques and identify common problems related to the stability and reliability of the sensing materials as well as to experimental set-ups. Finally, we suggest possible means of bridging scientific findings to viable and attractive LC sensor platforms. [less ▲]

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See detailThèse et ses suites
Loffeier, Iris UL

Presentation (2015, December 14)

Detailed reference viewed: 77 (0 UL)
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See detailTHESEUS - Protein Structure Prediction at ZIB
May, Patrick UL; Steinke, Thomas

Report (2006)

THESEUS, the ZIB threading environment, is a parallel implementation of a protein threading based on a multi-queued branch-and-bound optimal search algorithm to find the best sequence-to-structure ... [more ▼]

THESEUS, the ZIB threading environment, is a parallel implementation of a protein threading based on a multi-queued branch-and-bound optimal search algorithm to find the best sequence-to-structure alignment through a library of template structures. THESEUS uses a template core model based on secondary structure definition and a scoring function based on knowledge-based potentials reflecting pairwise interactions and the chemical environment, as well as pseudo energies for homology detection, loop alignment, and secondary structure matching. The threading core is implemented in C++ as a SPMD parallization architecture using MPI for communication. The environment is designed for generic testing of different scoring functions, e.g. different secondary structure prediction terms, different scoring matrices and information derived from multiple sequence alignments. A validaton of the structure prediction results has been done on the basis of standard threading benchmark sets. THESEUS successfully participated in the 6th Critical Assessment of Techniques for Protein Structure Prediction (CASP) 2004. [less ▲]

Detailed reference viewed: 69 (8 UL)
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See detail“They can communicate, BUT…” - Language learning goals of forced migrants in multilingual Luxembourg
Kalocsanyiova, Erika UL

Scientific Conference (2017, October 13)

This contribution presents data from an ongoing doctoral research project that focuses on the linguistic integration trajectory of Syrian and Iraqi refugees in Luxembourg. Drawing on interview data and ... [more ▼]

This contribution presents data from an ongoing doctoral research project that focuses on the linguistic integration trajectory of Syrian and Iraqi refugees in Luxembourg. Drawing on interview data and classroom observations we explore teachers’ and learners’ attitudes towards Luxembourg’s main languages and their beliefs about how to approach language learning in a multilingual society. Upon arrival, refugees are immediately exposed to the country’s immense linguistic diversity along with ambiguous and often competing ideologies as to what languages to learn. While French is the main vernacular language, English has been gaining importance as lingua franca of the Grand Duchy’s large international community. Government sources increasingly emphasise the role of Luxembourgish as the sole language of integration, despite its minority position in several domains. Other languages such as German or Portuguese might be equally important for navigating local life. Refugees from regions where (a regional/dialectal form of) Arabic enjoys the status of majority language, are expected to encounter difficulties in adapting to the complex language situation of Luxembourg. As a result, the research participants have shown a strong interest in developing different capabilities in a variety of languages and for a range of purposes. Our data confirms that wide-ranging learning outcomes are pursued in this context. While teachers acknowledge the importance of this aspect for setting language learning goals, system-wide, policy-declared goals still prevail in their pedagogical practice. Yet, we have observed instances of more holistic approaches that recognize the multilingual character of communication and learning, and take better account of the learners’ short- and long-term expectations. [less ▲]

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See detailThey Did not Stop at Eboli: The UNESCO Campaign Against Illiteracy in Reportages by David Seymour and Carlo Levi (1950)
Hendel, Giovanna; Naggar, Carole; Priem, Karin UL

Book published by De Gruyter - Appearances: Studies in Visual Research (2019)

The analysis of UNESCO’s audio-visual archives for their digitization has brought to light a forgotten album of 38 contact sheets and accompanying texts by Magnum photographer, David “Chim” Seymour – a ... [more ▼]

The analysis of UNESCO’s audio-visual archives for their digitization has brought to light a forgotten album of 38 contact sheets and accompanying texts by Magnum photographer, David “Chim” Seymour – a reportage made in 1950 for UNESCO on the fight against illiteracy in Italy’s southern region of Calabria. A number of his photographs appeared in the March 1952 issue of UNESCO Courier in an article written by Carlo Levi, who had gained worldwide fame with his novel Christ Stopped at Eboli (1945). [less ▲]

Detailed reference viewed: 126 (15 UL)
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See detail“They still think we are a tax paradise” - Financial Services Clustering in Luxembourg City
Walther, Olivier; Schulz, Christian UL

in Sohn, Christophe (Ed.) Luxembourg: An Emerging Cross-border Metropolitan Region (2012)

Detailed reference viewed: 65 (6 UL)
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See detailThiazole- and selenazole-comprising high-affinity inhibitors possess bright microsecond-scale photoluminescence in complex with protein kinase CK2.
Vahter, Jurgen; Viht, Kaido; Uri, Asko et al

in Bioorganic & medicinal chemistry (2018), 26(18), 5062-5068

A previously disclosed protein kinase (PK) CK2-selective inhibitor 4-(2-amino-1,3-thiazol-5-yl)benzoic acid (ATB) and its selenium-containing counterpart (ASB) revealed remarkable room temperature ... [more ▼]

A previously disclosed protein kinase (PK) CK2-selective inhibitor 4-(2-amino-1,3-thiazol-5-yl)benzoic acid (ATB) and its selenium-containing counterpart (ASB) revealed remarkable room temperature phosphorescence when bound to the ATP pocket of the protein kinase CK2. Conjugation of these fragments with a mimic of CK2 substrate peptide resulted in bisubstrate inhibitors with increased affinity towards the kinase. Attachment of the fluorescent acceptor dye 5-TAMRA to the conjugates led to significant enhancement of intensity of long-lifetime (microsecond-scale) photoluminescence of both sulfur- and selenium-containing compounds. The developed photoluminescent probes make possible selective determination of the concentration of CK2 in cell lysates and characterization of CK2 inhibitors by means of time-gated measurement of photoluminescence. [less ▲]

Detailed reference viewed: 56 (1 UL)
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See detailThickness dependence of the resistivity of platinum-group metal thin films
Dutta, S.; Sankaran, K.; Moors, Kristof UL et al

in Journal of Applied Physics (2017), 122(2),

We report on the thin film resistivity of several platinum-group metals (Ru, Pd, Ir, and Pt). Platinum-group thin films show comparable or lower resistivities than Cu for film thicknesses below about 5 nm ... [more ▼]

We report on the thin film resistivity of several platinum-group metals (Ru, Pd, Ir, and Pt). Platinum-group thin films show comparable or lower resistivities than Cu for film thicknesses below about 5 nm due to a weaker thickness dependence of the resistivity. Based on experimentally determined mean linear distances between grain boundaries as well as ab initio calculations of the electron mean free path, the data for Ru, Ir, and Cu were modeled within the semiclassical Mayadas-Shatzkes model [Phys. Rev. B 1, 1382 (1970)] to assess the combined contributions of surface and grain boundary scattering to the resistivity. For Ru, the modeling results indicated that surface scattering was strongly dependent on the surrounding material with nearly specular scattering at interfaces with SiO2 or air but with diffuse scattering at interfaces with TaN. The dependence of the thin film resistivity on the mean free path is also discussed within the Mayadas-Shatzkes model in consideration of the experimental findings. [less ▲]

Detailed reference viewed: 175 (1 UL)
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See detailThin Film Preparation of Chalcopyrites for Solar Cells and Fundamental Material Physics
Siebentritt, Susanne UL

Scientific Conference (2008, October)

Detailed reference viewed: 57 (2 UL)
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See detailThin film solar cells based on the ternary compound Cu2SnS3
Berg, Dominik M.; Djemour, Rabie UL; Gütay, Levent UL et al

in Thin Solid Films (2012), 520

Detailed reference viewed: 145 (3 UL)
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See detailThin film solar cells – success, challenges and perspectives
Siebentritt, Susanne UL

Scientific Conference (2015, January 22)

Detailed reference viewed: 373 (18 UL)