Universal temperature dependence of optical excitation life-time and band-gap in chirality assigned semiconducting single-wall carbon nanotubes

The temperature dependence of optical excitation life-time, Gamma, and transition energies, E_ii, were measured for bucky-papers of single-wall carbon nanotubes (SWCNTs) and inner tubes in double-wall carbon nanotubes (DWCNTs) using resonant Raman scattering. The temperature dependence of Gamma and E_ii is the same for both types of samples and is independent of tube chirality. The data proves that electron-phonon interaction is responsible for temperature dependence of E_ii(T). The temperature independent inhomogeneous contribution to Gamma is much larger in the SWCNT samples, which is explained by the different SWCNT environment in the two types of samples. Gamma of the inner tubes for the bucky-paper DWCNT sample is as low as \sim 30 meV, which is comparable to that found for individual SWCNTs

VRpursuits: Interaction in Virtual Reality Using Smooth Pursuit Eye Movements

Gaze-based interaction using smooth pursuit eye movements (Pursuits) is attractive given that it is intuitive and overcomes the Midas touch problem. At the same time, eye tracking is becoming increasingly popular for VR applications. While Pursuits was shown to be effective in several interaction contexts, it was never explored in-depth for VR before. In a user study (N=26), we investigated how parameters that are specific to VR settings influence the performance of Pursuits. For example, we found that Pursuits is robust against different sizes of virtual 3D targets. However performance improves when the trajectory size (e.g., radius) is larger, particularly if the user is walking while interacting. While walking, selecting moving targets via Pursuits is generally feasible albeit less accurate than when stationary. Finally, we discuss the implications of these findings and the potential of smooth pursuits for interaction in VR by demonstrating two sample use cases: 1) gaze-based authentication in VR, and 2) a space meteors shooting game

The radiation field in the Gamma Irradiation Facility GIF++ at CERN

The high-luminosity LHC (HL-LHC) upgrade is setting now a new challenge for particle detector technologies. The increase in luminosity will produce a particle background in the gas-based muon detectors that is ten times higher than under conditions at the LHC. The detailed knowledge of the detector performance in the presence of such a high background is crucial for an optimized design and efficient operation after the HL-LHC upgrade. A precise understanding of possible aging effects of detector materials and gases is of extreme importance. To cope with these challenging requirements, a new Gamma Irradiation Facility (GIF++) was designed and built at the CERN SPS North Area as successor of the Gamma Irradiation Facility (GIF) during the Long Shutdown 1 (LS1) period. It features an intense source of 662 keV photons with adjustable intensity, to simulate continuous background over large areas, and, combined with a high energy muon beam, to measure detector performance in the presence of the background. The new GIF++ facility has been operational since spring 2015. In addition to describing the facility and its infrastructure, the goal of this work is to provide an extensive characterization of the GIF++ photon field with different configurations of the absorption filters in both the upstream and downstream irradiation areas. Moreover, the measured results are benchmarked with Geant4 simulations to enhance the knowledge of the radiation field. The absorbed dose in air in the facility may reach up to 2.2 Gy/h directly in front of the irradiator. Of special interest is the low-energy photon component that develops due to the multiple scattering of photons within the irradiator and from the concrete walls of the bunker

Die Kunst- und Altertums-Denkmale im Königreich Württemberg. Inventar. Donaukreis. Oberämter Biberach, Blaubeuren, Ehingen, Geislingen

DIE KUNST- UND ALTERTUMS-DENKMALE IM KÖNIGREICH WÜRTTEMBERG. INVENTAR. DONAUKREIS. OBERÄMTER BIBERACH, BLAUBEUREN, EHINGEN, GEISLINGEN Die Kunst- und Altertums-Denkmale im Königreich Württemberg (-) Die Kunst- und Altertums-Denkmale im Königreich Württemberg. Inventar. Donaukreis. Oberämter Biberach, Blaubeuren, Ehingen, Geislingen (1914) (-) Einband (-) Titelseite (-) Vorwort (-) Donaukreis. Erster Band. (-) Originalentwurf zum Hauptturm des Ulmer Münsters. Ansicht. (-) Einleitung ([1]) Inneres der Schloßkirche zu Friedrichshafen. Nach einer Photographie von Architekt W. Kick in Stuttgart. Ansicht. (-) Kultur und Kunst in Oberschwaben im Zeitalter des Barock, Rokoko und Klassizismus ([9]) Der Bibliothekssaal zu Schussenried. Nach einer Photographie von C. U. Fetzer. Ansicht. (-) Chorgestühl in der Kirche zu Weingarten. Nach einer Photographie von Architekt W. Kick in Stuttgart. Ansicht. (-) Chorgestühl in der Kirche zu Roth. Nach einer Photographie von H. Kirchoff in Memmingen. Ansicht. (-) Inneres der Kirche zu Steinhausen bei Schussenried. Nach einer Photographie von Dr. C. U. Fetzer. Ansicht. (-) Inneres der Kirche zu Roth, O.A. Leutkirch. Nach einer Photographie von H. Bischoff in Memmingen. Ansicht. (-) Oberamt Biberach. (-) Vorwort (-) Tafel 1: Biberach a. d. Riß von Südwesten. Ansicht. (Tafel 1) Oberamt Biberach. Kunststatistische Übersicht. ([1]) Tafel 2: Biberach Stadtpfarrkirche Chor. Ansicht. (Tafel 2) Tafel 3: Biberach Altertümersammlung. Madonna von Altötting aus Schemmerberg. Ansicht. (Tafel 3) Tafel 4: Bellamont Kirche Syrlin d. J. Madonna. Ansicht. (Tafel 4) Tafel 5: Bellamont Kirche Syrlin d. J. Petrus. Ansicht. (Tafel 5) Tafel 6: Bellamont Kirche Syrlin d. J. Paulus. Ansicht. (Tafel 6) Tafel 8: Gutenzell Kirche Pietà. Ansicht. (Tafel 8) Tafel 7: Gutenzell Kirche Inneres. Ansicht. (Tafel 7) Tafel 9: Ingerkingen Kirche Pietà. Ansicht. (Tafel 9) Tafel 10: Maselheim Kirche Beweinung Christi. Ansicht. (Tafel 10) Tafel 11: Heggbach Kirche Madonna. Ansicht. (Tafel 11) Tafel 12: Ochsenhausen Kirche Inneres. Ansicht. (Tafel 12) Tafel 15: Ochsenhausen Prälatur Treppenhaus. Ansicht. (Tafel 15) Tafel 13: Ochsenhausen Meßgewand. Ansicht. (Tafel 13) Tafel 14: Ochsenhausen Rauchmantel. Ansicht. (Tafel 14) Tafel 16: Reinstetten Krönung Mariä I. Ansicht. (Tafel 16) Tafel 17: Reinstetten Krönung Mariä II. Ansicht. (Tafel 17) Tafel 18: Reinstetten Krönung Mariä III. Ansicht. (Tafel 18) Tafel 19: Steinhausen a. R. Pietà. Ansicht. (Tafel 19) Tafel 20: Warthausen Romanisches Kupferbeschläg eines Zaumzeugs. Ansicht. (Tafel 20) Karte des Oberamts Biberach ([255]) Oberamt Blaubeuren. (-) Vorbemerkungen (-) Tafel 1: Blaubeuren von Südosten. Ansicht. (Tafel 1) Oberamt Blaubeuren. Kunststatistische Übersicht und Register. ([1]) Tafel 2: Blaubeuren Kloster Margaretenkapelle. Ansicht. (Tafel 2) Tafel 3: Böttingen. Tod Mariä. Ansicht. (Tafel 3) Tafel 4: Dornstadt Altarschrein. Ansicht. (Tafel 4) Tafel 5: Merklingen Altarschrein. Kreuzabnahme. Ansicht. (Tafel 5) Tafel 6: Merklingen Altar Außenseiten der Flügel. Ansicht. (Tafel 6) Tafel 7: Scharenstetten Altar Schrein. Ansicht. (Tafel 7) Tafel 8: Wippingen Altar Schrein. Ansicht. (Tafel 8) Tafel 9: Wippingen Altar Flügel Innenseiten. Ansicht. (Tafel 9) Tafel 10: Wippingen Altar Flügel Außenseiten. Ansicht. (Tafel 10) Tafel 11: Lautern Altar. Ansicht. (Tafel 11) Tafel 12: Lautern Altar. Ansicht. (Tafel 12) Karte des Oberamts Blaubeuren ([137]) Oberamt Ehingen. (Tafel 1) Tafel 1: Rechtenstein. Ansicht. (Tafel 1) Oberamt Ehingen. Kunststatistische Übersicht und Register. ([1]) Tafel 2: Ehingen Madonna in der Liebfrauenkirche. Ansicht. (Tafel 2) Tafel 3: Erbach Chor der Pfarrkirche. Ansicht. (Tafel 3) Tafel 4: Ersingen Rechter Seitenaltar. Ansicht. (Tafel 4) Tafel 5: Ersingen Linker Seitenaltar. Ansicht. (Tafel 5) Tafel 6: Mochental Deckengemälde im Hubertussaal. Ansicht. (Tafel 6) Tafel 7: Munderkingen Chor der Stadtpfarrkirche. Ansicht. (Tafel 7) Tafel 8: Munderkingen Christus mit den Nothelfern. Ansicht. (Tafel 8) Tafel 9: Oberstadion Grablegung vom Hochaltar. Ansicht. (Tafel 9) Tafel 10: Oberstadion Die Hl. Paulus, Dorothea, Ulrich vom Hochaltar. Ansicht. (Tafel 10) Tafel 11: Oberstadion Die Hl. Konrad, Katharina, Petrus vom Hochaltar. Ansicht. (Tafel 11) Tafel 12: Oberstadion Kreuzgang vom Hochaltar. Ansicht. (Tafel 12) Tafel 13: Oberstadion Die Hl. Christoph und Sebastian vom Georgsaltar. Ansicht. (Tafel 13) Tafel 14: Oberstadion Sog. Stockeraltar. Ansicht. (Tafel 14) Tafel 15: Öpfingen Madonna. Ansicht. (Tafel 15) Tafel 16: Rißtissen Schrein des Hochaltars in der Gottesackerkapelle. Ansicht. (Tafel 16) Karte des Oberamts Ehingen ([205]) Oberamt Geislingen. (-) Tafel: Geislingen von Nordosten. Ansicht. (-) Vorwort (-) Oberamt Geislingen. Kunststatistische Übersicht und Register. ([1]) Inhaltsverzeichnis ([209]) Verzeichnis der Orte, geschichtlichen Personen (Künstler) und Abbildungen ([211]) Karte des Oberamts Geislingen. Ansicht. (-) Farbinformation (-) Einband (-

Experimental Study of Condensation of Water on Polydimethylsiloxane-Coated Copper Surfaces

Modification of surfaces to enable dropwise condensation is a promising approach for achieving high condensation rates. In this work, we present an experimental study on condensation of water on copper surfaces coated with an ultrathin, 5 nm - 10 nm thick polydimethylsiloxane (PDMS) layer. This hydrophobic coating possesses a very low thermal resistance, which in combination with copper substrate enables achieving high condensation rates in heat transfer applications. The PDMS-coated copper substrates have been fabricated with a newly developed method, which involves turning, sanding, polishing, oxidation, and polymer coating steps. The measured static contact angle was 110{\deg}, and a the contact angle hysteresis was 2{\deg}. The achieved very low hysteresis is advantageous for promoting dropwise condensation. The surface showed no ageing effects during 100 repetitions of advancing and receding contact angle (ARCA) measurements. Condensation heat transfer on uncoated and PDMS-coated copper surfaces surfaces has been studied experimentally in a saturated water vapor atmosphere at 60{\deg}C. An enhancement factor for heat flux and heat transfer coefficient of up to 1.6 was found on PDMS-coated copper surfaces compared to uncoated surfaces, which decreased to 1.1 on second and third day of condensation operation. Images of the condensation surface were recorded while conducting condensation experiments and post processed to evaluate drop departure diameter and frequency of drop sweeping events. It has been shown that the behavior of the heat transfer coefficient correlates with the frequency of the sweeping events

Effects of a Follow-On Formula Containing Isomaltulose (Palatinose) on Metabolic Response, Acceptance, Tolerance and Safety in Infants: A Randomized-Controlled Trial

UNLABELLED:Effects of the dietary glycaemic load on postprandial blood glucose and insulin response might be of importance for fat deposition and risk of obesity. We aimed to investigate the metabolic effects, acceptance and tolerance of a follow-on formula containing the low glycaemic and low insulinaemic carbohydrate isomaltulose replacing high glycaemic maltodextrin. Healthy term infants aged 4 to 8 completed months (n = 50) were randomized to receive the intervention follow-on formula (IF, 2.1g isomaltulose (Palatinose™)/100mL) or an isocaloric conventional formula (CF) providing 2.1g maltodextrin/100mL for four weeks. Plasma insulinaemia 60 min after start of feeding (primary outcome) was not statistically different, while glycaemia adjusted for age and time for drinking/volume of meal 60 min after start of feeding was 122(105,140) mg/dL in IF (median, interquartile range) and 111(100,123) in CF (p = 0.01). Urinary c-peptide:creatinine ratio did not differ (IF:81.5(44.7, 96.0) vs. CF:56.8(37.5, 129),p = 0.43). Urinary c-peptide:creatinine ratio was correlated total intake of energy (R = 0.31,p = 0.045), protein (R = 0.42,p = 0.006) and fat (R = 0.40,p = 0.01) but not with carbohydrate intake (R = 0.22,p = 0.16). Both formulae were well accepted without differences in time of crying, flatulence, stool characteristics and the occurrence of adverse events. The expected lower postprandial plasma insulin and blood glucose level due to replacement of high glycaemic maltodextrin by low glycaemic isomaltulose were not observed in the single time-point blood analysis. In infants aged 4 to 8 completed months fed a liquid formula, peak blood glucose might be reached earlier than 60 min after start of feeding. Non-invasive urinary c-peptide measurements may be a suitable marker of nutritional intake during the previous four days in infants. TRIAL REGISTRATION:ClinicalTrials.gov NCT01627015

Erfahrungsgeleitetes Lernen und Arbeiten als Methode und Ziel

"'Erfahrungswissen' verstehen wir als einen eigenständigen Handlungsmodus bzw. eine ganz spezifische Methode des Umgangs mit Arbeitsaufgaben in einer erfahrungsmöglichen Berufsausbildung: Erfahrunfsmöglichkeiten werden aktiv gesucht, um sie als Informationsquellen zu nutzen. Und die eigenen Handlungen - insbesondere in nicht vorhersehbaren bzw. planbaren Situationen - von ihnen 'leiten' zu lassen. Die Arbeitenden bzw. Lernenden bleiben dabei nicht länger 'distanzierte Beobachter' und Akteure, sondern lassen sich als ganze Personen, d.h. eben gerade mit ihren subjektiven Fähigkeiten auf die Situation ein." (Textauszug