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See detailWWII: Die Suche nach dem alten Freund
Ganschow, Inna UL

Article for general public (2017)

The article treats a friendship between a Soviet POW and a Luxemburger in 1944, both working at the Reichsbahn under the German occupation in Luxembourg.

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See detailMechanical strength assessment of a drilled hole in the contralateral cortex at the end of the open wedge for high tibial osteotomy.
Diffo Kaze, Arnaud UL; Maas, Stefan UL; Hoffmann, Alexander et al

in Journal of Experimental Orthopaedics (2017), 4(1),

BACKGROUND: This study aimed to investigate, by means of finite element analysis, the effect of a drill hole at the end of a horizontal osteotomy to reduce the risk of lateral cortex fracture while ... [more ▼]

BACKGROUND: This study aimed to investigate, by means of finite element analysis, the effect of a drill hole at the end of a horizontal osteotomy to reduce the risk of lateral cortex fracture while performing an opening wedge high tibial osteotomy (OWHTO). The question was whether drilling a hole relieves stress and increases the maximum correction angle without fracture of the lateral cortex depending on the ductility of the cortical bone. METHODS: Two different types of osteotomy cuts were considered; one with a drill hole (diameter 5 mm) and the other without the hole. The drill holes were located about 20 mm distally to the tibial plateau and 6 mm medially to the lateral cortex, such that the minimal thickness of the contralateral cortical bone was 5 mm. Based on finite element calculations, two approaches were used to compare the two types of osteotomy cuts considered: (1) Assessing the static strength using local stresses following the idea of the FKM-guideline, subsequently referred to as the "FKM approach" and (2) limiting the total strain during the opening of the osteotomy wedge, subsequently referred to as "strain approach". A critical opening angle leading to crack initiation in the opposite lateral cortex was determined for each approach and was defined as comparative parameter. The relation to bone aging was investigated by considering the material parameters of cortical bones from young and old subjects. RESULTS: The maximum equivalent (von-Mises) stress was smaller for the cases with a drill hole at the end of the osteotomy cut. The critical angle was approximately 1.5 times higher for the specimens with a drill hole compared to those without. This corresponds to an average increase of 50%. The calculated critical angle for all approaches is below 5°. The critical angle depends on the used approach, on patient's age and assumed ductility of the cortical bone. CONCLUSIONS: Drilling a hole at the end of the osteotomy reduces the stresses in the lateral cortex and increases the critical opening angle prior to cracking of the opposite cortex in specimen with small correction angles. But the difference from having a drill hole or not is not so significant, especially for older patients. The ductility of the cortical bone is the decisive parameter for the critical opening angle. [less ▲]

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See detailLocal History: Luxembourg, Schaifmillen. SCHLEIFMÜHLE – GESCHICHTE EINES IMPERIUMS
Ganschow, Inna UL

Article for general public (2017)

The story of one of the most successful jewish families in Luxemburg in the 19th and 20th century - the Godchaux.

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See detailWWII, Interview: "L'amour de la vie l'emporte toujours"
Ganschow, Inna UL; Braun, Frederic

Article for general public (2017)

Inna Ganschow a exploré le destin des Ostarbeiter, ces «travailleurs de l'Est» soviétiques que l'occupant nazi avait déportés par milliers au Luxembourg pour les faire travailler, dans la sidérurgie ... [more ▼]

Inna Ganschow a exploré le destin des Ostarbeiter, ces «travailleurs de l'Est» soviétiques que l'occupant nazi avait déportés par milliers au Luxembourg pour les faire travailler, dans la sidérurgie principalement. [less ▲]

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See detailLocal History: Differdange, De klenge Casino. DAS KLEINE CASINO IN DIFFERDINGEN: SALVE!
Ganschow, Inna UL

Article for general public (2017)

The story of the so called "Small Casino" on the main market place of Differdange - build as a pharmacy, transformed in to a restaurant.

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See detailLocal History: Beggen, Castle. EIN SCHLOSS, DAS KEINES IST
Ganschow, Inna UL

Article for general public (2017)

The story of the Mansion Emile Metz (1835-1904) called Castle fo Beggen which after the WWII became the residence of the Soviet and later Russian embassy.

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See detailCharge and energy fractionalization mechanism in one-dimensional channels
Acciai, Matteo; Calzona, Alessio UL; Dolcetto, Giacomo UL et al

in Physical Review B (2017), 96

We study the problem of injecting single electrons into interacting one-dimensional quantum systems, a fundamental building block for electron quantum optics. It is well known that such injection leads to ... [more ▼]

We study the problem of injecting single electrons into interacting one-dimensional quantum systems, a fundamental building block for electron quantum optics. It is well known that such injection leads to charge and energy fractionalization. We elucidate this concept by calculating the nonequilibrium electron distribution function in the momentum and energy domains after the injection of an energy-resolved electron. Our results shed light on how fractionalization occurs via the creation of particle-hole pairs by the injected electron. In particular, we focus on systems with a pair of counterpropagating channels, and we fully analyze the properties of each chiral fractional excitation which is created by the injection. We suggest possible routes to access their energy and momentum distribution functions in topological quantum Hall or quantum spin-Hall edge states. [less ▲]

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See detailCommon framework and quadratic Bethe equations for rational Gaudin magnets in arbitrarily oriented magnetic fields
Faribault, Alexandre; Tschirhart, Hugo UL

in SciPost Physics (2017)

In this work we demonstrate a simple way to implement the quantum inverse scattering method to find eigenstates of spin-1/2 XXX Gaudin magnets in an arbitrarily oriented magnetic field. The procedure ... [more ▼]

In this work we demonstrate a simple way to implement the quantum inverse scattering method to find eigenstates of spin-1/2 XXX Gaudin magnets in an arbitrarily oriented magnetic field. The procedure differs vastly from the most natural approach which would be to simply orient the spin quantisation axis in the same direction as the magnetic field through an appropriate rotation. Instead, we define a modified realisation of the rational Gaudin algebra and use the quantum inverse scattering method which allows us, within a slightly modified imple- mentation, to build an algebraic Bethe ansatz using the same unrotated reference state (pseudovacuum) for any external field. This common framework allows us to easily write determinant expressions for certain scalar products which would be highly non-trivial in the rotated system approach. [less ▲]

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See detailLocal History: Luxembourg City, Belair. DIE VILLA, IN DER TITAN ENTSTAND
Ganschow, Inna UL

Article for general public (2017)

The story of the villa which was used by Titanium inventor William Kroll (1889-1973) as his residence and lab before WWII.

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See detailLocal History: Ettelbrück, Villa Huberty. VON BRUCHPILOTEN, ÄRZTEN UND EINER VERFOLGUNGSJAGD
Ganschow, Inna UL

Article for general public (2017)

The story of the a doctors villa (Dr. Nicolas Huberty (1890-1976)) and his friends (among them first communist minister Dr. Charles Marx (1903-1946)) helping two French pilots to escape Germans in 1940.

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See detailRussians in Luxembourg, WWII: „Lachen hat ja keinen Akzent“
Ganschow, Inna UL

Article for general public (2017)

The story of a Russian POW saved and hidden by his Luxemburger friends in 1944 told by two eyewitnesses.

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See detailGenerating purpose-dependent production factors through Monte Carlo sampling techniques.
Scheffer, Ariane; Cantelmo, Guido UL; Viti, Francesco UL

Scientific Conference (2017, May)

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See detailLocal History: Rosport, Castle. DIE LUXEMBURGER TUDORS
Ganschow, Inna UL

Article for general public (2017)

The story of the castle built by the inventor of accumulators Henri Owen Tudor (1859-1928).

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See detailLocal History: Luxemburg City, Rosenstiel. CENTRE ROSENSTIEL: DAS PARADIES DER DAMEN
Ganschow, Inna UL

Article for general public (2017)

The story of the tollest building in the main street of the capitol Luxemburgs - Centre Rosenstiel.

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See detailAre parity and magnitude status of Arabic digits processed automatically? An EEG study using the fast periodic visual stimulation
Poncin, Alexandre UL; Van Rinsveld, Amandine; Guillaume, Mathieu UL et al

Presentation (2017, February 22)

Many studies have shown that humans can easily extract numerical characteristics of single digits such as numerical magnitude and parity status. We investigated whether spontaneous processing of magnitude ... [more ▼]

Many studies have shown that humans can easily extract numerical characteristics of single digits such as numerical magnitude and parity status. We investigated whether spontaneous processing of magnitude or parity status can be observed when participants are passively presented with sequences of briefly displayed Arabic digits. We assessed the parity processing by presenting seven odd digit numbers followed by one even digit (and reverse) with a sinusoidal contrast modulation at a frequency of 10HZ in one-minute sequences. The same paradigm and frequencies were used to investigate magnitude processing (i.e. seven digits smaller than five followed by one digit larger than five; and reverse) and control condition (i.e. sequence of 1-4-6-9 followed by 2-3-7 or 8). We observed a strong EEG activation on right parietal electrodes and a weaker activation on left parietal electrodes in all conditions. Left and right activations were stronger in the parity than in the other conditions, reflecting an automatic retrieval of parity information conveyed by the Arabic digits. The weaker activation during the magnitude task could reflect a more complicated access of the information corresponding to magnitude status. Right activations during the control task could be due to the fact that subjects can quickly learn to categorize numbers arbitrarily. These neuronal activation patterns are consistent with the neuro-imaging literature describing the localization of basic numerical processing. Our findings indicate that magnitude and parity status are extracted automatically from Arabic digits, even when numerical stimuli are presented without instructions at a high presentation rate. [less ▲]

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See detailLocal History: Munsbach, Castle. ROMANTISCHE KAMINKACHELN, LIKÖRE UND GAULEITER
Ganschow, Inna UL

Article for general public (2017)

The story of Castle of Munsbach and its inhabitants (one of them was in the WWII the Gauleiter Gustav Simon).

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See detailLocal History: Useldange, Castle. DIE DOLLARMATTI VON USELDINGEN
Ganschow, Inna UL

Article for general public (2017)

A Luxembruger emigrant in Amerika Emma Wolff comes back to her home town Useldange and buys the main local attraction - the Castle.

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See detailPolynomial quadratic differentials on the complex plane and light-like polygons in the Einstein Universe
Tamburelli, Andrea UL

E-print/Working paper (2017)

We construct geometrically a homeomorphism between the moduli space of polynomial quadratic differentials on the complex plane and light-like polygons in the 2-dimensional Einstein Universe. As an ... [more ▼]

We construct geometrically a homeomorphism between the moduli space of polynomial quadratic differentials on the complex plane and light-like polygons in the 2-dimensional Einstein Universe. As an application, we find a class of minimal Lagrangian maps between ideal polygons in the hyperbolic plane. [less ▲]

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