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See detailThe role of citizens in the politics of insecurity: Malta and Sub-Saharan migrants
Lemaire, Léa UL

E-print/Working paper (2017)

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See detailSTARR - Decision SupporT and self-mAnagement system for stRoke survivoRs Vision based Rehabilitation System
Shabayek, Abd El Rahman UL; Baptista, Renato UL; Papadopoulos, Konstantinos UL et al

in European Project Space on Networks, Systems and Technologies (2017)

This chapter explains a vision based platform developed within a European project on decision support and self-management for stroke survivors. The objective is to provide a low cost home rehabilitation ... [more ▼]

This chapter explains a vision based platform developed within a European project on decision support and self-management for stroke survivors. The objective is to provide a low cost home rehabilitation system. Our main concern is to maintain the patients' physical activity while carrying a continuous monitoring of his physical and emotional state. This is essential for recovering some autonomy in daily life activities and preventing a second damaging stroke. Post-stroke patients are initially subject to physical therapy under the supervision of a health professional to follow up on their daily physical activity and monitor their emotional state. However, due to social and economical constraints, home based rehabilitation is eventually suggested. Our vision platform paves the way towards having low cost home rehabilitation. [less ▲]

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See detailEditors' Introduction
Rollinger, Christian; During, Marten UL; Stark, Martin et al

in Journal of Historical Network Research (2017), 1(1), --

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See detailMeeting the Challenges of Critical and Extreme Dependability and Security
Verissimo, Paulo UL; Volp, Marcus UL; Decouchant, Jérémie UL et al

in Proceedings of the 22nd Pacific Rim International Symposium on Dependable Computing (2017)

The world is becoming an immense critical information infrastructure, with the fast and increasing entanglement of utilities, telecommunications, Internet, cloud, and the emerging IoT tissue. This may ... [more ▼]

The world is becoming an immense critical information infrastructure, with the fast and increasing entanglement of utilities, telecommunications, Internet, cloud, and the emerging IoT tissue. This may create enormous opportunities, but also brings about similarly extreme security and dependability risks. We predict an increase in very sophisticated targeted attacks, or advanced persistent threats (APT), and claim that this calls for expanding the frontier of security and dependability methods and techniques used in our current CII. Extreme threats require extreme defenses: we propose resilience as a unifying paradigm to endow systems with the capability of dynamically and automatically handling extreme adversary power, and sustaining perpetual and unattended operation. In this position paper, we present this vision and describe our methodology, as well as the assurance arguments we make for the ultra-resilient components and protocols they enable, illustrated with case studies in progress. [less ▲]

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See detailDie Germanistik im mehrsprachigen Bildungssystem Belgiens.
Küpper, Achim UL; Leuschner, Torsten

in Mitteilungen des Deutschen Germanistenverbandes (2017), 64

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See detailBiologischer Zufall oder politisches Kalkül? Das Herzogtum Luxemburg und der Nordwesten Europas in der Politik Karls IV.
Pauly, Michel UL

in Brizova, Daniela; Kuthan, Jiri; Peroutkova, Jana (Eds.) et al Kaiser Karl IV. Die böhmischen Länder und Europa. Internationale Konferenz aus Anlaß des 600. [sic] Jubiläums der Geburt Karls IV. Prag 9. Mai 2016 – 12. Mai 2016 (2017)

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See detailAnalysis of Temporal and Web Site References in History-related Tweets
Sumikawa, Yasunobu; Jatowt, Adam; During, Marten UL

in Proceedings of the 2017 ACM on Web Science Conference (2017)

Having good knowledge and comprehension of history is believed to be important for a variety of reasons. In this paper we report the initial results of a large scale exploratory analysis of history ... [more ▼]

Having good knowledge and comprehension of history is believed to be important for a variety of reasons. In this paper we report the initial results of a large scale exploratory analysis of history-focused references in microblogs based on 11-months long snapshot of Twitter data. The results of this study can be used for designing content recommendation systems and can help to improve time aware search applications. [less ▲]

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See detailThe Goldman symplectic form on the PSL(V)-Hitchin component
Sun, Zhe UL; Zhang, Tengren

E-print/Working paper (2017)

This article is the second of a pair of articles about the Goldman symplectic form on the PSL(V )-Hitchin component. We show that any ideal triangulation on a closed connected surface of genus at least 2 ... [more ▼]

This article is the second of a pair of articles about the Goldman symplectic form on the PSL(V )-Hitchin component. We show that any ideal triangulation on a closed connected surface of genus at least 2, and any compatible bridge system determine a symplectic trivialization of the tangent bundle to the Hitchin component. Using this, we prove that a large class of flows defined in the companion paper [SWZ17] are Hamiltonian. We also construct an explicit collection of Hamiltonian vector fields on the Hitchin component that give a symplectic basis at every point. These are used in the companion paper to compute explicit global Darboux coordinates for the Hitchin component. [less ▲]

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See detailLe règlement des conflits entre actionnaires : exclusion, retrait et modes alternatifs de résolution de conflits
Corbisier, Isabelle UL

in Coipel, Michel; Delvaux, Marie-Amélie (Eds.) Jurisprudence en droit des sociétés commerciales - recueil annuel - 2017 - N°s 1311 à 1358 (2017)

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See detailNinety-nine de novo assembled genomes from the moose (Alces alces) rumen microbiome provide new insights into microbial plant biomass degradation.
Svartstrom, Olov; Alneberg, Johannes; Terrapon, Nicolas et al

in The ISME journal (2017), 11(11), 2538-2551

The moose (Alces alces) is a ruminant that harvests energy from fiber-rich lignocellulose material through carbohydrate-active enzymes (CAZymes) produced by its rumen microbes. We applied shotgun ... [more ▼]

The moose (Alces alces) is a ruminant that harvests energy from fiber-rich lignocellulose material through carbohydrate-active enzymes (CAZymes) produced by its rumen microbes. We applied shotgun metagenomics to rumen contents from six moose to obtain insights into this microbiome. Following binning, 99 metagenome-assembled genomes (MAGs) belonging to 11 prokaryotic phyla were reconstructed and characterized based on phylogeny and CAZyme profile. The taxonomy of these MAGs reflected the overall composition of the metagenome, with dominance of the phyla Bacteroidetes and Firmicutes. Unlike in other ruminants, Spirochaetes constituted a significant proportion of the community and our analyses indicate that the corresponding strains are primarily pectin digesters. Pectin-degrading genes were also common in MAGs of Ruminococcus, Fibrobacteres and Bacteroidetes and were overall overrepresented in the moose microbiome compared with other ruminants. Phylogenomic analyses revealed several clades within the Bacteriodetes without previously characterized genomes. Several of these MAGs encoded a large numbers of dockerins, a module usually associated with cellulosomes. The Bacteroidetes dockerins were often linked to CAZymes and sometimes encoded inside polysaccharide utilization loci, which has never been reported before. The almost 100 CAZyme-annotated genomes reconstructed in this study provide an in-depth view of an efficient lignocellulose-degrading microbiome and prospects for developing enzyme technology for biorefineries. [less ▲]

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See detailMulti-omics reveal the lifestyle of the acidophilic, mineral-oxidizing model species Leptospirillum ferriphilum(T).
Christel, Stephan; Herold, Malte UL; Bellenberg, Soren et al

in Applied and environmental microbiology (2017)

Leptospirillum ferriphilum plays a major role in acidic, metal rich environments where it represents one of the most prevalent iron oxidizers. These milieus include acid rock and mine drainage as well as ... [more ▼]

Leptospirillum ferriphilum plays a major role in acidic, metal rich environments where it represents one of the most prevalent iron oxidizers. These milieus include acid rock and mine drainage as well as biomining operations. Despite its perceived importance, no complete genome sequence of this model species' type strain is available, limiting the possibilities to investigate the strategies and adaptations Leptospirillum ferriphilum(T) applies to survive and compete in its niche. This study presents a complete, circular genome of Leptospirillum ferriphilum(T) DSM 14647 obtained by PacBio SMRT long read sequencing for use as a high quality reference. Analysis of the functionally annotated genome, mRNA transcripts, and protein concentrations revealed a previously undiscovered nitrogenase cluster for atmospheric nitrogen fixation and elucidated metabolic systems taking part in energy conservation, carbon fixation, pH homeostasis, heavy metal tolerance, oxidative stress response, chemotaxis and motility, quorum sensing, and biofilm formation. Additionally, mRNA transcript counts and protein concentrations were compared between cells grown in continuous culture using ferrous iron as substrate and bioleaching cultures containing chalcopyrite (CuFeS2). Leptospirillum ferriphilum(T) adaptations to growth on chalcopyrite included a possibly enhanced production of reducing power, reduced carbon dioxide fixation, as well as elevated RNA transcripts and proteins involved in heavy metal resistance, with special emphasis on copper efflux systems. Finally, expression and translation of genes responsible for chemotaxis and motility were enhanced.IMPORTANCELeptospirillum ferriphilum is one of the most important iron-oxidizers in the context of acidic and metal rich environments during moderately thermophilic biomining. A high-quality circular genome of Leptospirillum ferriphilum(T) coupled with functional omics data provides new insights into its metabolic properties, such as the novel identification of genes for atmospheric nitrogen fixation, and represents an essential step for further accurate proteomic and transcriptomic investigation of this acidophile model species in the future. Additionally, light is shed on Leptospirillum ferriphilum(T) adaptation strategies to growth on the copper mineral chalcopyrite. This data can be applied to deepen our understanding and optimization of bioleaching and biooxidation, techniques that present sustainable and environmentally friendly alternatives to many traditional methods for metal extraction. [less ▲]

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See detailLuxemburg - Frühpädagogisches Personal. Ausbildungen, Arbeitsfelder, Arbeitsbedingungen
Honig, Michael-Sebastian UL; Bock, Tina

in Schreyer, Inge; Oberhuemer, Pamela (Eds.) Frühpädagogische Personalprofile in 30 Ländern mit Schlüsseldaten zu den Kita-Systemen. (2017)

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See detailA new method for estimation and model selection: $\rho$-estimation
Baraud, Yannick UL; Birgé, L.; Sart, M.

in Invent. Math. (2017), 207(2), 425--517

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See detailA systems-wide understanding of photosynthetic acclimation in algae and higher plants
Wanjiku Moejes, Fiona; Matuszyńska, Anna; Adhikari, Kailash et al

in Journal of Experimental Botany (2017), 68(11), 26672681

The ability of phototrophs to colonise different environments relies on robust protection against oxidative stress, a critical requirement for the successful evolutionary transition from water to land ... [more ▼]

The ability of phototrophs to colonise different environments relies on robust protection against oxidative stress, a critical requirement for the successful evolutionary transition from water to land. Photosynthetic organisms have developed numerous strategies to adapt their photosynthetic apparatus to changing light conditions in order to optimise their photosynthetic yield, which is crucial for life on Earth to exist. Photosynthetic acclimation is an excellent example of the complexity of biological systems, where highly diverse processes, ranging from electron excitation over protein protonation to enzymatic processes coupling ion gradients with biosynthetic activity, interact on drastically different timescales from picoseconds to hours. Efficient functioning of the photosynthetic apparatus and its protection is paramount for efficient downstream processes, including metabolism and growth. Modern experimental techniques can be successfully integrated with theoretical and mathematical models to promote our understanding of underlying mechanisms and principles. This review aims to provide a retrospective analysis of multidisciplinary photosynthetic acclimation research carried out by members of the Marie Curie Initial Training Project, AccliPhot, placing the results in a wider context. The review also highlights the applicability of photosynthetic organisms for industry, particularly with regards to the cultivation of microalgae. It intends to demonstrate how theoretical concepts can successfully complement experimental studies broadening our knowledge of common principles in acclimation processes in photosynthetic organisms, as well as in the field of applied microalgal biotechnology. [less ▲]

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See detailA Lightweight Authentication Mechanism for M2M Communications in Industrial IoT Environment
Esfahani, Alireza UL; Mantas, G.; Matischek, R. et al

in IEEE Internet of Things Journal (2017), 6(1), 288-296

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See detailFrom Battlegrounds to Burial Grounds - The Cemetery Landscapes of the German Army, 1939 -1945
Janz, Nina UL

in Jacob, Frank; Danielsson, Sarah K. (Eds.) War and Geography. The Spatiality of Organized Mass Violence (2017)

War is always related to many different aspects, e.g. religion, technology etc. However, one of the aspects of central importance for the history of warfare is geography. The present volume will analyze ... [more ▼]

War is always related to many different aspects, e.g. religion, technology etc. However, one of the aspects of central importance for the history of warfare is geography. The present volume will analyze this interrelationship from several different perspectives. Geography is not only integral to the planning of tactics and strategies, but plays an important role in the outcome of war and its long-term aftermath. Furthermore, the interplay between war and geography is not purely a modern phenomenon but can be traced back through the ages of history. Geography always had the potential of providing an advantage or disadvantage. The aim of the volume is to grant historical perspectives on that special interrelationship in different time periods and regional settings. The purpose is to provide a deeper insight and an interdisciplinary discussion, which will open new perspectives on military history in general and the history of warfare in particular. [less ▲]

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See detailAcademia as a (gendered) career choice: The role of tourism
Gewinner, Irina UL

in Revista Turismo & Desenvolvimento (2017)

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See detailGendered Career Choices and Stereotypes: A theoretical Approach
Gewinner, Irina UL

in Advances in Gender Research (2017)

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See detailChainGuard - A Firewall for Blockchain Applications using SDN with OpenFlow
Steichen, Mathis UL; Hommes, Stefan UL; State, Radu UL

in ChainGuard - A Firewall for Blockchain Applications using SDN with OpenFlow (2017)

Recently, blockchains have been gathering a lot of interest. Many applications can benefit from the advantages of blockchains. Nevertheless, applications with more restricted privacy or participation ... [more ▼]

Recently, blockchains have been gathering a lot of interest. Many applications can benefit from the advantages of blockchains. Nevertheless, applications with more restricted privacy or participation requirements cannot rely on public blockchains. First, the whole blockchain can be downloaded at any time, thus making the data available to the public. Second, anyone can deploy a node, join the blockchain network and take part in the consensus building process. Private and consortium blockchains promise to combine the advantages of blockchains with stricter requirements on the participating entities. This is also the reason for the comparably small number of nodes that store and extend those blockchains. However, by targeting specific nodes, an attacker can influence how consensuses are reached and possibly even halt the blockchain operation. To provide additional security to the blockchain nodes, ChainGuard utilizes SDN functionalities to filter network traffic, thus implementing a firewall for blockchain applications. ChainGuard communicates with the blockchain nodes it guards to determine which origin of the traffic is legitimate. Packets from illegitimate sources are intercepted and thus cannot have an effect on the blockchain. As is shown with experiments, ChainGuard provides access control functionality and can effectively mitigate flooding attacks from several sources at once. [less ▲]

Detailed reference viewed: 135 (13 UL)