References of "2005"
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See detailKennen als een vorm van handelen. John Dewey’s transactionele kentheorie
Biesta, Gert UL

in Logister, L. (Ed.) John Dewey: Een inleiding tot zijn filosofie. (2005)

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See detailMedienstadt Köln. Genese und aktuelle Tendenzen der Medienwirtschaft und ihre Bedeutung für die Stadtentwicklung.
Bläser, Ralf UL; Schulz, Christian UL

in BECKER, Christoph (Ed.) GrenzTouren. Exkursionen zwischen Maas, Mosel, Saar und Rhein. (2005)

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See detailEffects of atmospheric pressure loading and seven-parameter transformations on estimates of geocenter motion and station heights from space geodetic observations
Tregoning, P.; van Dam, Tonie UL

in Journal of Geophysical Research (2005), 110

Variations in fluid loads such as the oceans and the atmosphere deform the surface of the Earth. The accuracy of station coordinates, in particular, heights, that can be estimated depends on how well one ... [more ▼]

Variations in fluid loads such as the oceans and the atmosphere deform the surface of the Earth. The accuracy of station coordinates, in particular, heights, that can be estimated depends on how well one can separate these surface deformations from the associated translational motion between the center of mass of the solid Earth and the total Earth (CM). We applied simulated atmospheric pressure loading effects to the coordinates of sites in the CM frame to explore to what level of accuracy both geocenter motion and accurate station coordinates can actually be recovered from geodetic analyses. We found that standard seven-parameter transformations (three rotations, three translations, scale) generally recover about 80% of the geocenter motion; however, the inclusion of a scale factor permits the aliasing of surface loading deformation, introducing scale errors of up to 0.3 ppb and daily height errors as large as 4 mm. This limits the geophysical studies that can be performed accurately using the results of geodetic analyses where the magnitudes of the signals are small (e.g., tectonic movement of tide gauges, uplift rates for interpreting glacial isostatic adjustment). The quality of the geodetic results is extremely sensitive to the number and distribution of sites used to estimate the transformations and becomes worse when regional (rather than global) sets of sites are used. If the scale factor parameter is omitted, then the amount of aliasing of surface loading effects is reduced considerably and more accurate site velocities and geocenter motion estimates are achieved. [less ▲]

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See detailAnnäherung und Differenz: Geschlechterdifferenzen im Bildungsverhalten, in den Wertorientierungen und dem Freizeitverhalten der Jugendlichen
Willems, Helmut UL; Weis, Christiane UL; Meyers, Christiane UL

in Milmeister, Marianne (Ed.) Aspects de la recherche jeunesse: Diversité et genre. Documents de la Journée CESIJE du 17 décembre 2004 (2005)

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See detailKinder und Heranwachsende mit HIV oder AIDS
Vögele, Claus UL

in Schlottke, P. F.; Silbereisen, R. K.; Schneider, S. (Eds.) et al Enzyklopädie der Psychologie,D/II/6: Störungen im Kindes- und Jugendalter (2005)

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See detailSleep apnea syndrome in Parkinson's disease. A case-control study in 49 patients.
Diederich, Nico UL; Vaillant, Michel; Leischen, Mike et al

in Movement Disorders (2005), 20(11), 1413-8

In PD, the impact of nocturnal respiration on sleep continuity and architecture has not been systematically investigated by polysomnography (PSG). We performed a case-control study with retrospective ... [more ▼]

In PD, the impact of nocturnal respiration on sleep continuity and architecture has not been systematically investigated by polysomnography (PSG). We performed a case-control study with retrospective analysis of PSG data of 49 PD patients. After classifying the PD patients according to their apnea/hypopnea index (AHI), they were matched with 49 controls in terms of age, gender, and AHI. There were 21 PD patients (43%) who had sleep apnea syndrome (SAS), classified as mild (AHI, 5-15) in 10 patients, moderate (AHI, >15-30) in 4 patients, and severe (AHI, > 30) in 7 patients. PD patients had more deep sleep (P = 0.02) and more nocturnal awakenings (P < 0.001) than the controls. Their body mass index (BMI) was lower (P = 0.04), and they maintained a more favorable respiratory profile, with higher mean and minimal oxygen saturation values (P = 0.006 and 0.01, respectively). These differences were preserved when only considering PD patients with AHI > 15. PD patients had less obstructive sleep apneas (P = 0.035), independently from the factor AHI. Only the respiratory changes of 4 PD patients with BMI > 27 and AHI > 15 (8%) approximated those seen in the controls. At an early or middle stage of the disease, non-obese PD patients frequently have AHI values suggesting SAS, however, without the oxygen desaturation profile of SAS. Longitudinal studies of patients with such "abortive" SAS are warranted to establish if this finding reflects benign nocturnal respiratory muscle dyskinesia or constitutes a precursor sign of dysautonomia in PD. [less ▲]

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See detailIsotropic-nematic interfacial tension of hard and soft rods: Application of advanced grand canonical biased-sampling techniques
Vink, R. L. C.; Wolfsheimer, S.; Schilling, Tanja UL

in Journal of Chemical Physics (2005), 123(7),

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See detailPerseus: Randomized point-based value iteration for POMDPs
Spaan, M. T. J.; Vlassis, Nikos UL

in Journal of Artificial Intelligence Research (2005), 24

Partially observable Markov decision processes (POMDPs) form an attractive and principled framework for agent planning under uncertainty. Point-based approximate techniques for POMDPs compute a policy ... [more ▼]

Partially observable Markov decision processes (POMDPs) form an attractive and principled framework for agent planning under uncertainty. Point-based approximate techniques for POMDPs compute a policy based on a finite set of points collected in advance from the agent's belief space. We present a randomized point-based value iteration algorithm called Perseus. The algorithm performs approximate value backup stages, ensuring that in each backup stage the value of each point in the belief set is improved; the key observation is that a single backup may improve the value of many belief points. Contrary to other point-based methods, Perseus backs up only a (randomly selected) subset of points in the belief set, sufficient for improving the value of each belief point in the set. We show how the same idea can be extended to dealing with continuous action spaces. Experimental results show the potential of Perseus in large scale POMDP problems. [less ▲]

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See detailUncertainty of absolute gravity measurements
Van Camp, Michel; Williams, Simon D. P.; Francis, Olivier UL

in Journal of Geophysical Research (2005), 110(B05406), 1-9

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See detailNucleation in suspensions of anisotropic colloids
Schilling, Tanja UL; Frenkel, Daan

in Computer Physics Communications (2005), 169(1-3), 117-121

We report Monte Carlo studies of liquid crystal nucleation in two types of anisotropic colloidal systems: hard rods and hard ellipsoids. In both cases we find that nucleation pathways differ strongly from ... [more ▼]

We report Monte Carlo studies of liquid crystal nucleation in two types of anisotropic colloidal systems: hard rods and hard ellipsoids. In both cases we find that nucleation pathways differ strongly from the pathways in systems of spherical particles. Short hard rods show an effect of self-poisoning. This part of the article is based on a previous publication [T. Schilling, D. Frenkel, Self-poisoning of crystal nuclei in hard-rod liquids, Phys. Rev. Lett. 92 (2004) 085505]. When a crystallite forms, its surfaces are covered preferentially by rods which align perpendicular to the surface. Therefore subsequent growth is stunted. Hard, almost spherical ellipsoids can be compressed to very high densities without crystallization—in contrast to hard spheres, which crystallize easily. When forced to crystallize, ellipsoids form very loosely aggregated nuclei. In both cases nucleation pathways are complex and it is therefore difficult to define an appropriate reaction coordinate. The common strategies of investigation of nucleation problems (i.e. definition of a coordinate and then sampling barrier crossing with well-known techniques) fail in these systems. [less ▲]

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See detailActin-filament cross-linking protein T-plastin increases Arp2/3-mediated actin-based movement
Giganti, A.; Plastino, J.; Janji, B. et al

in Journal of Cell Science (2005), 118(6), 1255-1265

Increasing evidence suggests that actin cross-linking or bundling proteins might not only structure the cortical actin cytoskeleton but also control actin dynamics. Here, we analyse the effects of T ... [more ▼]

Increasing evidence suggests that actin cross-linking or bundling proteins might not only structure the cortical actin cytoskeleton but also control actin dynamics. Here, we analyse the effects of T-plastin/T-fimbrin, a representative member of an important actin-filament cross-linking protein by combining a quantitative biomimetic motility assay with biochemical and cell-based approaches. Beads coated with the VCA domain of the Wiskott/Aldrich-syndrome protein (WASP) recruit the actin-nucleating Arp2/3 complex, polymerize actin at their surface and undergo movement when placed in cell-free extracts. T-Plastin increased the velocity of VCA beads 1.5 times, stabilized actin comets and concomitantly displaced cofilin, an actin-depolymerizing protein. T-Plastin also decreased the F-actin disassembly rate and inhibited cofilin-mediated depolymerization of actin filaments in vitro. Importantly, a bundling-incompetent variant comprising the first actin-binding domain (ABD1) had similar effects. In cells, this domain induced the formation of long actin cables to which other actin-regulating proteins were recruited. Altogether, these results favor a mechanism in which binding of ABD1 controls actin turnover independently of cross-link formation. In vivo, this activity might contribute to the assembly and maintenance of the actin cytoskeleton of plasma-membrane protrusions. [less ▲]

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See detailIndividual and organizational values: A comparative structural analysis of German and American samples
Krolak-Schwerdt, Sabine UL; Schneider, Johann F.

in Hare, A. P.; Sjovold, E.; Baker, H. G. (Eds.) et al Social Interactions Systems: SYMLOG Research and Applications (2005)

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See detailKennen als een vorm van handelen. John Deweys transactionele kentheorie.
Biesta, Gert UL

in Bijdragen Tijdschrift voor Filosofie en Theologie (2005), 15(1), 5-12

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See detailGermanistik im Bologna-Prozess
Mein, Georg UL

in DAAD (Ed.) Perspektiven der Germanistik in Europa (2005)

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See detailUnified European Gravity Reference Network 2002 (UEGN02)—Status 2004
Boedecker, G.; Francis, Olivier UL; Kenyeres, A.

in Jekeli, C.; Bastos, L.; Fernandes, J. (Eds.) Gravity, Geoid and Space Missions - GGSM 2004 (2005)

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See detailPeriodic unmixing of a binary metallic vapor
Maul, J.; Strachnov, I.; Karpuk, S. et al

in Physical Review. B, Condensed Matter and Materials Physics (2005), 72(15),

We report on a type of surface structuring after short pulse laser ablation of a binary alloy. We observe the emergence of a concentric ring structure with changing elemental composition. The composition ... [more ▼]

We report on a type of surface structuring after short pulse laser ablation of a binary alloy. We observe the emergence of a concentric ring structure with changing elemental composition. The composition changes are interpreted by condensation of the ambient ablation vapor due to stress wave excitations in the ablation spot. [less ▲]

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See detailIn fremden Kleidern Autobiographie und Materialität der Dinge
Priem, Karin UL

in Koller, Hans-Christoph; Rieger-Ladich, Markus (Eds.) Grenzgänge. Pädagogische Lektüren zeitgenössischer Romane (2005)

Detailed reference viewed: 122 (3 UL)