cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Elektrochemische Abscheidung von porösen Titandioxid-Filmen und deren photoelektrochemische Anwendungen
Creators: name: Wessels, Katrin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Elektrochemische Abscheidung
subject: Titandioxid-Filme
subject: Photoelektrochemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Didaktische Konservierung - Restaurierungsarbeiten des Deutschen Archäologischen Instituts in der Türkei
Creators: name: Bachmann, Martin
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2017

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 61 (2016): ICOMOS – Hefte des Deutschen Nationalkomitees
Erhöhte Strahlenexpositionen der allgemeinen Bevölkerung durch bergbauliche Aktivitäten
Creators: name: Wanke, Carsten
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Strahlenexposition
subject: natürliche Radionuklide
subject: Steinkohlebergbau
subject: Uranerzbergbau
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen

description: [no abstract]
Dante's Divina Commedia: Spring Lecture 07 (Purgatorio 27, 28, 29)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 7 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded February 9, 2016. 0:00 – overview of remaining canti of Purgatorio; upcoming transition to Paradiso 11:00 – Purgatorio 27 36:42 – Purgatorio 28 1:11:45 – Purgatorio 29
Quantum simulation of Kibble-Zurek mechanism with a semiconductor electron charge qubit
Creators: name: Zhou, Cheng
name: Wang, Li
name: Tu, Tao
name: Li, Hai-Ou
name: Guo, Guang-Can
name: Jiang, Hong-Wen
name: Guo, Guo-Ping
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Kibble-Zurek mechanism provides a description of the topological structure occurring in the symmetry breaking phase transitions, which may manifest as the cosmological strings in the early universe or vortex lines in the superfulid. A particularly intriguing analogy between Kibble-Zurek mechanism and a text book quantum phenomenon, Landau-Zener transition has been discovered, but is difficult to observe up to now. In recent years, there has been broad interest in quantum simulations using different well-controlled physical setups, in which full tunability allows access to unexplored parameter regimes. Here we demonstrate a proof-of-principle quantum simulation of Kibble-Zurek mechanism using a single electron charge qubit in double quantum dot, set to behave as Landau-Zener dynamics. We measure the qubit states as a function of driven pulse velocity and successfully reproduce Kibble-Zurek like dependence of topological defect density on the quench rate. The high-level controllability of semiconductor two-level system make it a platform to test the key elements of topological defect formation process and shed a new insight on the aspect of non-equilibrium phase transitions.
description: 14 pages, 4 figures
Bodendenkmal und Neubebauung auf der Spreeinsel. Strategien zur Integration archäologischer Befunde an der Breite Straße Berlin-Mitte
Creators: name: Wehage, Philipp
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2017

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 61 (2016): ICOMOS – Hefte des Deutschen Nationalkomitees
Pathomechanismen der fokal segmentalen Glomerulosklerose (FSGS) : Charakterisierung von "Survival"- und Apoptose-Signalwegen
Creators: name: Tossidou, Irini
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Podozyten
subject: transforming growth factor beta
subject: CD2-assoziiertes Protein
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Wissen übertragen - Weltkulturerbe Kloster Lorsch. Eine Weltkulturstätte wird als topographische Abschrift nacherzählt
Creators: name: Dexler, Lorenz
name: Folkerts, Thilo
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2017

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 61 (2016): ICOMOS – Hefte des Deutschen Nationalkomitees
The Burst Cluster: Dark Matter in a Cluster Merger Associated with the Short Gamma Ray Burst, GRB 050509B
Creators: name: Dahle, Hakon
name: Sarazin, Craig L.
name: Lopez, Laura A.
name: Kouveliotou, Chryssa
name: Patel, Sandeep K.
name: Rol, Evert
name: van der Horst, Alexander J.
name: Fynbo, Johan P.
name: Wijers, Ralph A. M. J.
name: Burrows, David N.
name: Gehrels, Neil
name: Grupe, Dirk
name: Ramirez-Ruiz, Enrico
name: Michalowski, Michal J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have identified a merging galaxy cluster with evidence of two distinct sub-clusters. The X-ray and optical data suggest that the subclusters are moving away from each other after closest approach. This cluster merger was discovered from observations of the well localized short-duration gamma-ray burst (GRB), GRB 050509B. The Swift/Burst Alert Telescope (BAT) source position is coincident with a cluster of galaxies ZwCl 1234.0+02916. The subsequent Swift/X-Ray Telescope (XRT) localization of the X-ray afterglow found the GRB coincident with 2MASX J12361286+2858580, a giant red elliptical galaxy in the cluster. Deep multi-epoch optical images were obtained to constrain the evolution of the GRB afterglow, including a 27480s exposure in the F814W band with Hubble Space Telescope Advanced Camera for Surveys (ACS), among the deepest imaging ever obtained towards a known galaxy cluster in a single passband. We perform a weak gravitational lensing analysis, including mapping the total mass distribution of the merger system. Combined with Chandra X-ray Observatory and Swift/XRT observations, we investigate the dynamical state of the merger to probe the nature of the dark matter component. Our weak gravitational lensing measurements reveal a separation of the X-ray centroid of the western subcluster from the center of the mass and galaxy light distributions, similar to that of the famous "Bullet cluster". We conclude that the "Burst cluster" is another candidate merger system for determining the nature of dark matter and for studying the environment of short GRBs. We discuss connections between the cluster dynamical state and/or matter composition and compact object mergers, the leading model for the origin of short GRBs. Finally, we present results from a weak lensing survey based on archival Very Large Telescope (VLT) images in the areas of 5 other short GRBs.
description: 17 pages, 7 figures, accepted by ApJ
Fotobefragung in Bibliotheken – Methode zur Erhebung schwer operationalisierbarer Nutzerbedürfnisse wie „Gemütlichkeit“
Creators: name: Zehnder, Salome
Publisher: name: Verein Informationspraxis
Year: 2017
Subjects: subject: Bibliothek als Raum; Nutzerbedürfnisse; Forschungsmethoden; Fotobefragung

description: Im Rahmen einer Bachelorarbeit wurden für eine kleine Schweizer Fachbibliothek die Nutzerbedürfnisse erhoben. Dabei kam neben gängigen Methoden wie einer Online-Umfrage auch die Fotobefragung zum Einsatz. Der vorliegende Beitrag zeigt die Entstehungsgeschichte und Anwendung der Methode im Bibliotheksbereich. Durch den Einsatz von Fotografien, die unter anderem auch durch den Nutzer selbst erstellt werden, können auf einfache Weise neben allgemeinen Infrastrukturbedürfnisse auch schwer operationalisierbare Nutzerbedürfnisse wie „Gemütlichkeit“ oder „angenehme Lernatmosphäre“ erhoben werden.
description: Informationspraxis, Bd. 3, Nr. 1 (2017)
Weak Massive Gravity
Creators: name: Comelli, Denis
name: Nesti, Fabrizio
name: Pilo, Luigi
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We find a new class of theories of massive gravity with five propagating degrees of freedom where only rotations are preserved. Our results are based on a non-perturbative and background-independent Hamiltonian analysis. In these theories the weak field approximation is well behaved and the static gravitational potential is typically screened à la Yukawa at large distances, while at short distances no vDVZ discontinuity is found and there is no need to rely on nonlinear effects to pass the solar system tests. The effective field theory analysis shows that the ultraviolet cutoff is (m M_PL)^1/2 ~ 1/μm, the highest possible. Thus, these theories can be studied in weak-field regime at all the phenomenologically interesting scales, and are candidates for a calculable large-distance modified gravity.
description: 5 pages
Serielle, induktive Wärmebehandlung laserstrahlgeschweißter Feinbleche
Creators: name: Bormann, Axel
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Laser
subject: welding
subject: induction
subject: heat treatment
subject: tailored blanks
subject: mechanical properties
subject: high strength steel
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
Funktion mononukleärer Phagozyten in der Pathogenese der Streptococcus pneumoniae-induzierten Pneumonie der Maus
Creators: name: Winter, Christine
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Streptococcus pneumoniae
subject: Pneumonie
subject: Lunge
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Untersuchungen zum Auftreten rekombinanter Potyviren in Mischinfektionen und virusresistenten transgenen Pflanzen (VRTP) sowie Nachweise zur Virusverteilung in doppelinfizierten Pflanzen
Creators: name: Dietrich, Christof
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Potyvirus
subject: recombination
subject: mixed infections
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Dante's Divina Commedia: Spring Lecture 06 (Purgatorio 25, 26, 27)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 6 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded February 4, 2016. 0:00 – Purgatorio 25 23:10 – Purgatorio 26 1:01:35 – Purgatorio 27
O PAÍS DO AVESSO
Creators: name: Pavao Santana, Jose Claudio
Publisher: name: Zenodo
Year: 2025

description: NO 11- N. 41/2023 – https://doi.org/10.5281/zenodo.8313006

Uma das mais belas músicas compostas por Caetano Veloso homenageia uma das

mais agradáveis cidades em meu modo de sentir: São Paulo, a querida Sampa.

Na música há um verso que fala em “avesso, do avesso, do avesso, do avesso”.

As contradições e singularidades da cidade, inóspita em alguns momentos, mas rica

em fortunas e oportunidades, além de ser um dos esteios econômicos do Brasil,

traduzem bem as contradições que vivemos hoje neste país, onde há gente que jura

que é democrático, embora a relatividade tenha abrigado esse conceito.

Bom, o que mais me espanta é que hoje a mídia reete a militância das

universidades abandonadas pelo regime militar, que se ocupou mais de ministérios

que abrigavam a doutrina da segurança nacional, relegando em mãos da esquerda a

cultura em geral, onde eu incluo as produções literárias e cientícas.
Anyons in integer quantum Hall magnets
Creators: name: Rahmani, Armin
name: Muniz, Rodrigo A.
name: Martin, Ivar
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Strongly correlated fractional quantum Hall liquids support fractional excitations, which can be understood in terms of adiabatic flux insertion arguments. A second route to fractionalization is through the coupling of weakly interacting electrons to topologically nontrivial backgrounds such as in polyacetylene. Here we demonstrate that electronic fractionalization combining features of both these mechanisms occurs in noncoplanar itinerant magnetic systems, where integer quantum Hall physics arises from the coupling of electrons to the magnetic background. The topologically stable magnetic vortices in such systems carry fractional (in general irrational) electronic quantum numbers and exhibit Abelian anyonic statistics. We analyze the properties of these topological defects by mapping the distortions of the magnetic texture onto effective non-Abelian vector potentials. We support our analytical results with extensive numerical calculations.
description: 15 pages, 12 figures, supersedes arXiv:1112.3347, to be published in PRX
Campanula cochleariifolia Lam.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. cochleariifolia Lam. (C.pusilla Hanke) Cat. 246. Bis 3415 m: Oberrothorn bei Zermatt (Braun-Blanquet1919);anderein neuerer Zeitfestgestellte hohe Stellen sind: Gornergrat, 3130 m, und Platthorngrat,3100m,beiZermatt (Braun-Blanquet1919); Valsorey, 3050 m (Guyot); unter der Britanniahütte (Saas),3010m (Oberson1953). Var. pubescens (Gaudin) Chenev. - l: Zwischen Le Chätelard und Tete-Noire (Melly). - 2: Montagne de Fully (Garns). - 3: Prassurny bei Orsieres (M:elly); Valsorey (Guyot); Vence (Melly); Les Hauderes (Exchaquet); Alpen von Saas (A. Keller). - 4: Furggengrat im Binntal (Goudet; hierher C. Goitdetn Beauverd). Var. Delpontei Chabert- 3: Les Ars-dessous im ValFerret (M:elly). Var. tenella (Jordan) Hayek - 3: Glacier du Trient (Oberson); Les Ars-dessous im Val Ferret (Melly); Turtmanngletscher, subvar. /iisjgtdustmaBeauverd (Beauverd). Var. Mathoneti (Jordan) Dalla Torre et Sarnth.- l: Vallon de St-Barthelemy (F.). Var. subramulosa (Jordan) Chenev.- 3:Bonatchesse imVal de Bagnes (J.); Riddes (Besse). Var umbrosa Hofmann - 3: Les Ars-dessous im Val Ferret (Melly); Montatuey ob Orsieres (idem). Var. Bellardü (All.) - Wallis (nach Schinz und Keller). Var. Foudrasii (Jordan) - 3: Les Ars-dessous im ValFerret (Melly).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Temporal-difference learning with nonlinear function approximation: lazy training and mean field regimes
Creators: name: Agazzi, Andrea
name: Lu, Jianfeng
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We discuss the approximation of the value function for infinite-horizon discounted Markov Reward Processes (MRP) with nonlinear functions trained with the Temporal-Difference (TD) learning algorithm. We first consider this problem under a certain scaling of the approximating function, leading to a regime called lazy training. In this regime, the parameters of the model vary only slightly during the learning process, a feature that has recently been observed in the training of neural networks, where the scaling we study arises naturally, implicit in the initialization of their parameters. Both in the under- and over-parametrized frameworks, we prove exponential convergence to local, respectively global minimizers of the above algorithm in the lazy training regime. We then compare this scaling of the parameters to the mean-field regime, where the approximately linear behavior of the model is lost. Under this alternative scaling we prove that all fixed points of the dynamics in parameter space are global minimizers. We finally give examples of our convergence results in the case of models that diverge if trained with non-lazy TD learning, and in the case of neural networks.
description: accepted version to MSML 2021
Untersuchung von Stoßprozessen mittels Laseranregung : optische Stöße mit molekularen Targets und optische Stöße mit Femtosekundenlaserpulsen
Creators: name: Goldstein, Ralf
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Alignment during the collision
subject: nonadiabatic transition
subject: optical collision
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Proteomuntersuchung von Körperflüssigkeiten mittels online gekoppelter Kapillarelektrophorese : Massenspektrometrie als Routineverfahren der Diagnostik
Creators: name: Kaiser, Thorsten
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Proteomuntersuchung
subject: Körperflüssigkeiten
subject: CE-MS
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
The observational limit of wave packets with noisy measurements
Creators: name: Caro, Pedro
name: Meroño, Cristóbal J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The authors consider the problem of recovering an observable from certain measurements containing random errors. The observable is given by a pseudodifferential operator while the random errors are generated by a Gaussian white noise. The authors show how wave packets can be used to partially recover the observable from the measurements almost surely. Furthermore, they point out the limitation of wave packets to recover the remaining part of the observable, and show how the errors hide the signal coming from the observable. The recovery results are based on an ergodicity property of the errors produced by wave packets.
Dante's Divina Commedia: Spring Lecture 05 (Purgatorio 23, 24, 25)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 5 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded February 2, 2016. 0:00 – Purgatorio 23 21:38 – Purgatorio 24 58:17 – Purgatorio 25
title: Gedenkfeier anlässlich der Bestattung von Caroline Link-Bucher (1871-1956)
title: Freitag den 15. Juni 1956 in der Friedhofkapelle Enzenbühl in Zürich
titleType: Subtitle
Creators: name: Sonderegger, Hugo
Publisher: name: [Steno-Verlag]
Year: 1956
Subjects: subject: 230 Christentum, christliche Theologie
subject: 370 Bildung und Erziehung
subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Link-Buch, Caroline
subject: Zollikon
subject: Schaffhausen
subject: Duala

description: Einleitung, Abdankungspredigt, Gebet
Oxyfunktionalisierung von Terpenkohlenwasserstoffen zu aromaaktiven Terpenoiden durch selektive Biokatalyse
Creators: name: Kaspera, Rüdiger
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Biotransformation
subject: terpene
subject: fungi
subject: nootkatone
subject: cis-(+)-carveol
subject: 7-hydroxyfarnesene
subject: lyophilisation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Surface composition and taxonomic classification of a group of near-Earth and Mars-crossing asteroids
Creators: name: Sanchez, Juan A.
name: Michelsen, René
name: Reddy, Vishnu
name: Nathues, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In the past, constraining the surface composition of near-Earth asteroids (NEAs) has been difficult due to the lack of high quality near-IR spectral data (0.7-2.5 microns) that contain mineralogically diagnostic absorption bands. Here we present visible (0.43-0.95 microns) and near-infrared (0.7-2.5 microns) spectra of nine NEAs and five Mars-crossing asteroids (MCs). The studied NEAs are: 4055 Magellan, 19764 (2000 NF5), 89830 (2002 CE), 138404 (2000 HA24), 143381 (2003 BC21), 159609 (2002 AQ3), 164121 (2003 YT1), 241662 (2000 KO44) and 2007 ML13. The studied MCs are: 1656 Suomi, 2577 Litva, 5407 (1992 AX), 22449 Ottijeff and 47035 (1998 WS). The observations were conducted with the NTT at La Silla, Chile, the 2.2 m telescope at Calar Alto, Spain, and the IRTF on Mauna Kea, Hawai'i. The taxonomic classification (Bus system) of asteroids showed that all observed MC asteroids belong to the S-complex, including the S, Sr and Sl classes. Seven of the NEAs belong to the S-complex, including the S, Sa, Sk and Sl classes, and two NEAs were classified as V-types. The classification of the NEA 164121 (2003 YT1) as a V-type was made on the basis of its near-infrared spectrum since no visible spectrum is available for this asteroid. A mineralogical analysis was performed on six of the asteroids (those for which near-IR spectra were obtained or previously available). We found that three asteroids (241662 (2000 KO44), 19764 (2000 NF5), 138404 (2000 HA24)) have mafic silicate compositions consistent with ordinary chondrites, while three others (4055 Magellan, 164121 (2003 YT1), 5407 (1992 AX)) are pyroxene-dominated basaltic achondrite assemblages. In the case of 5407 (1992 AX) we found that its basaltic surface composition contrasts its taxonomic classification as a S-type.
description: 23 pages, 10 figures, 3 tables, accepted for publication in Icarus
Generalizations of planar contact manifolds to higher dimensions
Creators: name: Acu, Bahar
name: Etnyre, John B.
name: Ozbagci, Burak
Publisher: name: arXiv
Year: 2020
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R17 (Primary), 53D35 (Secondary)

description: Iterated planar contact manifolds are a generalization of three dimensional planar contact manifolds to higher dimensions. We study some basic topological properties of iterated planar contact manifolds and discuss several examples and constructions showing that many contact manifolds are iterated planar. We also observe that for any odd integer m > 3, any finitely presented group can be realized as the fundamental group of some iterated planar contact manifold of dimension m. Moreover, we introduce another generalization of three dimensional planar contact manifolds that we call projective. Finally, building symplectic cobordisms via open books, we show that some projective contact manifolds admit explicit symplectic caps.
description: 34 pages, 4 figures; v2 implements changes suggested by the referees; to appear in the Journal of Symplectic Geometry
Dante's Divina Commedia: Spring Lecture 04 (Purgatorio 21, 22, 23)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 4 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded January 28, 2016. 0:00 – Purgatorio 21 52:24 – Purgatorio 22 1:32:45 – Purgatorio 23
Ein kräftegesteuerter Platzierer für 3D-ICs mit Berücksichtigung vertikaler Durchkontaktierungen
Creators: name: Kaya, Idris
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Physical design
subject: quadratic programming
subject: 3D placement
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Dante's Divina Commedia: Spring Lecture 02 (Purgatorio 17, 18, 19)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 2 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded January 21, 2016. 0:00 – Purgatorio 17 37:52 – Purgatorio 18 1:13:48 – Purgatorio 19
Josephson-like behavior in YBa$_2$Cu$_3$O$_{7-δ}$ nano-bridges carrying the depairing current
Creators: name: Nawaz, Shahid
name: Arpaia, Riccardo
name: Lombardi, Floriana
name: Bauch, Thilo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have investigated the zero-field critical supercurrent of YBa$_2$Cu$_3$O$_{7-δ}$ bridges patterned from 50 nm thick films as a function of bridge width, ranging from 2 $μ$m to 50 nm. The critical current density monotonically increases for decreasing bridge width even for widths smaller than the Pearl length. This behavior is accounted for by considering current crowding effects at the junction between the bridge and the wider electrodes. Comparison to numerical calculations of the current distributions in our bridge geometries of various widths yields a (local) critical current density at 4.2 K of $1.3\times 10^8$ A/cm$^2$, the Ginzburg Landau depairing current density. The observation of up to 160 Shapiro-like steps in the current voltage characteristics under microwave irradiation substantiates the pristine character of our nano bridges with cross sections as small as $50\times 50$ nm$^2$.
description: Number of Pages: 13 Number of figure: 5
Free Probability for Pairs of Faces I
Creators: name: Voiculescu, Dan-Virgil
Publisher: name: arXiv
Year: 2013
Subjects: subject: Operator Algebras (math.OA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary : 46L54, Secondary: 60F05, 46L50, 22E30

description: We consider a notion of bi-freeness for systems of non-commutative random variables with two faces, one of left variables and another of right variables. This includes bi-free convolution operations, bi-free cumulants and the bi-free central limit.
description: 33 pages
Campanula excisa Schleicher ex Murith
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. excisa Schleicher ex Murith Cat. 245. Vgl. Binz Lit. 1908a, S.25 und 42; Vaccari, Cat. Pl. Vallee d'Aoste, I, S. 599 (1911); Becherer Lit. 1920, S. l und 1939b, S. 26; Guyot Lit. 1925, S. 47. Bis 3010 m: unter der Britanniahütte (Saastal), einige Stöcke, mit C. cochleariifolia (Oberson 1953). 3: Gr. St.Bernhard, beim Schweizer Zoll, Felshang über der Strasse, 2453 m (Becherer und A.Etter 1952), damit Art auch im Unterwallis nachgewiesen;Vispertäler:ausser im Saastal (wo die Art verbreitet ist und ihren höchstenFundort in den Alpen besitzt [vgl. oben]) nach zwei älteren, zu bestätigenden Angaben im Mattertal: «Vallee Saint-Nicolas» (Beleg ohne Finder und Jahr in herb. de Candolle, Genf) und: zwischen St. Niklaus und Täsch (E. Ferner de la Bäthie 1861 in herb. Delessert, Genf); Gebiet von Visperterminen: in dem vom Salenboden östlich Riedji in den Reiterbach mündenden Graben, etwa 1300-1340 m (Rytz 1953); Nanztal (versch. Beobachter). - 3a: Verbreitet: Simplonpasshöhe-Gabi, Laggintal, Gebiet der Gondoschlucht, Alpien,Zwischbergental(vgl. BechererLit. 1939b,S.26; 1940b,S.317; 1941b,S.120).- 4: Rieder- alp gegen das Bettmerhorn, 2300 m (F. Klingelfuss 1923); Binntal: vielfach (vgl. Cat. sowie Binz Lit. cit. und Becherer Lit. 1920). Tritt in den f. uniflora Guyot und multiflora Guyot auf; eine f. ramosn [Chenev. in herb.] Guyot: Z. B. Almagelleralp (Hirschmann), Berisal (Chenevard u. a.). Farbenspielarten: weissblühend, Z. B.: Zwischbergental (Becherer), Binn (versch. Beobachter); weinrot bis lebhaft rosa: Nanztal gegen den Bistinenpass,2250m (Oberson 1953). Das Areal der Art umfasst die Grajischen bis Lepontischen Alpen, wobei der Schwerpunkt der Verbreitung in den (östlichen) Grajischen Alpen liegt. Vgl. Vaccari l. c., Becherer Lit. 1939b. Es ist bedauerlich, dassdievon VACCARIschon vor über 40 Jahren berichtigte irrige Angabe der früheren Botaniker, wonach C. excisa ein engbegrenztes Wohngebiet: Saastal-Simplon, mit Ausstrahlungen nach Süden und Norden, habe, noch neuestens (Fischer und Rytz Lit. 1953, S. 23 und 25) wiederholt wird.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
The ratio-cut polytope and K-means clustering
Creators: name: De Rosa, Antonio
name: Khajavirad, Aida
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 90C05, 90C57, 62H30, 49Q20, 68Q87

description: We introduce the ratio-cut polytope defined as the convex hull of ratio-cut vectors corresponding to all partitions of $n$ points in $\mathbb R^m$ into at most $K$ clusters. This polytope is closely related to the convex hull of the feasible region of a number of clustering problems such as K-means clustering and spectral clustering. We study the facial structure of the ratio-cut polytope and derive several types of facet-defining inequalities. We then consider the problem of K-means clustering and introduce a novel linear programming (LP) relaxation for it. Subsequently, we focus on the case of two clusters and derive sufficient conditions under which the proposed LP relaxation recovers the underlying clusters exactly. Namely, we consider the stochastic ball model, a popular generative model for K-means clustering, and we show that if the separation distance between cluster centers satisfies $Δ> 1+\sqrt 3$, then the LP relaxation recovers the planted clusters with high probability. This is a major improvement over the only existing recovery guarantee for an LP relaxation of K-means clustering stating that recovery is possible with high probability if and only if $Δ> 4$. Our numerical experiments indicate that the proposed LP relaxation significantly outperforms a popular semidefinite programming relaxation in recovering the planted clusters.
Entwicklung weit frequenzabstimmbarer einfrequenter Laserstrahlquellen für Raumfahrtanwendungen
Creators: name: Hunnekuhl, Michael
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Diode-pumped ring laser
subject: pump-current modulation
subject: ADM-AEOLUS
subject: frequency tuning
subject: two-color pumped monolithic ring laser
subject: two-diode pumped monolithic ring laser
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Complete Fusion of Weakly Bound Cluster-Type Nuclei at Near Barrier Energies
Creators: name: Hussein, M. S.
name: Gomes, P. R. S.
name: Lubian, J.
name: Linares, R.
name: Canto, L. F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We consider the influence of breakup channels on the complete fusion of weakly bound cluster-type systems in terms of dynamic polarization potentials. It is argued that the enhancement of the cross section at sub-barrier energies may be consistent with recent experimental observations that nucleon transfer, often leading to breakup, is dominant compared to direct breakup. The main trends of the experimental complete fusion cross sections are analyzed in the framework of the Dynamic Polarization Potential approach. The qualitative conclusions are supported by CDCC calculations including a sequential breakup channel, the one neutron stripping of $^7$Li followed by the breakup of $^6$Li.
description: 4 pages, 3 figures. Contribution to Cluster2012, Debrecen 24-28 September 2012, to appear in Journal of Physics Conference Proceedings Series (JPCS)
ATRP-Pfropfungen von oxidischen Partikeloberflächen
Creators: name: Janke, Reinhard
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Grafting-from polymerization
subject: ATRP
subject: oxidic particles
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
title: Identifying critical demand scenarios for the robust capacitated network design problem using principal component analysis
Creators: name: Bley, Andreas
name: Hahn, Philipp
Publisher: name: Universität Kassel
Year: 2024
Subjects: subject: principal component analysis
subject: robust network design
subject: scenario reduction
subject: 510
subject: Netzwerk
subject: Design
subject: Mathematisches Problem
subject: Szenario
subject: Hauptkomponentenanalyse

description: Gefördert im Rahmen des Projekts DEAL
Zur Modellierung verdeckter T-Stoßverbindungen mittels MAG-Schweißverfahren
Creators: name: Huang, Jian
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Concealed T-joint
subject: MAG welding
subject: FE-modelling
subject: weld form
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
Dante's Divina Commedia: Spring Lecture 03 (Purgatorio 19, 20, 21)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 3 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded January 26, 2016. 0:00 – Purgatorio 19 43:34 – Purgatorio 20 1:11:55 – Purgatorio 21
A note on Almost Riemann Soliton and gradient almost Riemann soliton
Creators: name: De, Krishnendu
name: De, Uday Chand
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: The quest of the offering article is to investigate \emph{almost Riemann soliton} and \emph{gradient almost Riemann soliton} in a non-cosymplectic normal almost contact metric manifold $M^3$. Before all else, it is proved that if the metric of $M^3$ is Riemann soliton with divergence-free potential vector field $Z$, then the manifold is quasi-Sasakian and is of constant sectional curvature -$λ$, provided $α,β=$ constant. Other than this, it is shown that if the metric of $M^3$ is \emph{ARS} and $Z$ is pointwise collinear with $ξ$ and has constant divergence, then $Z$ is a constant multiple of $ξ$ and the \emph{ARS} reduces to a Riemann soliton, provided $α,\;β=$constant. Additionally, it is established that if $M^3$ with $α,\; β=$ constant admits a gradient \emph{ARS} $(γ,ξ,λ)$, then the manifold is either quasi-Sasakian or is of constant sectional curvature $-(α^2-β^2)$. At long last, we develop an example of $M^3$ conceding a Riemann soliton.
title: Моделирование гидроабразивного фрезерования природного камня
Creators: name: Жабин, Александр
name: Аверин, Евгений
name: Поляков, Андрей
Publisher: name: Известия Тульского государственного университета. Науки о земле
Year: 2017

description: Дано математическое описание процесса гидроабразивного фрезерования природного камня. Приведены основные факторы, определяющие этот процесс, и сформулированы допущения математической модели. В качестве основного показателя процесса гидроабразивного фрезерования принята скорость эрозии, которая определяется, в том числе и с учетом поперечного растрескивания в результате воздействия на обрабатываемую поверхность абразивных частиц, а также возможного слияния трещин. Представлены результаты теоретических исследований и их сопоставление с экспериментальными данными.
On Adaptive Energy Efficient Transmission in WSNs
Creators: name: Tahir, M.
name: Javaid, N.
name: Iqbal, A.
name: Khan, Z. A.
name: Alrajeh, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: One of the major challenges in design of Wireless Sensor Networks (WSNs) is to reduce energy consumption of sensor nodes to prolong lifetime of finite-capacity batteries. In this paper, we propose Energy-efficient Adaptive Scheme for Transmission (EAST) in WSNs. EAST is an IEEE 802.15.4 standard compliant. In this scheme, open-loop is used for temperature-aware link quality estimation and compensation. Whereas, closed-loop feedback process helps to divide network into three logical regions to minimize overhead of control packets. Threshold on transmitter power loss (RSSIloss) and current number of nodes (nc(t)) in each region help to adapt transmit power level (Plevel) according to link quality changes due to temperature variation. Evaluation of propose scheme is done by considering mobile sensor nodes and reference node both static and mobile. Simulation results show that propose scheme effectively adapts transmission Plevel to changing link quality with less control packets overhead and energy consumption as compared to classical approach with single region in which maximum transmitter Plevel assigned to compensate temperature variation.
description: arXiv admin note: text overlap with arXiv:1303.6242
Charakterisierung der spezifischen Liganden der natürlichen Killerzell-aktivierenden Rezeptoren NKp46, NKp44 und NKp30 auf Tumorzellen
Creators: name: Jarahian, Mostafa
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Natural cytotoxicity receptors (NCR)
subject: NKp46
subject: NKp44
subject: NKp30
subject: L1 as cellular ligand
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
title: Состояние научных исследований в области разрушения горных пород резцовым инструментом на рубеже веков
Creators: name: Жабин, Александр
name: Поляков, Андрей
name: Аверин, Евгений
name: Сарычев, Владимир
Publisher: name: Известия Тульского государственного университета. Науки о земле
Year: 2018

description: Приведены основные сведения о резцовых инструментах для разрушения различных материалов в горном деле. Представлены и проанализированы зарубежные и отечественные исследования, касающиеся эффективности применения резцов. Показаны основные направления их развития с учетом использования компьютерных технологий. Даны рекомендации относительно целесообразности использования тех или иных методов в практических целях.
A phenomenological approach to the evolution of galaxies
Creators: name: Lilly, Simon
name: Peng, Ying-jie
name: Carollo, Marcella
name: Renzini, Alvio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Increasingly good statistical data on the galaxy population at high and low redshift enable the development of new phenomenological approaches to galaxy evolution based on application of the simplest continuity equations. This has given new insights into the different ways in which star-formation in galaxies is quenched, the role of merging in the population, and into the control of star-formation in star-forming galaxies and the links between this and chemical evolution, in particular the existence of SFR as a second parameter in the mass-metallicity relation. The continuity approach provides a self-consistent view of the evolving population and exposes linkages between different aspects of galaxy evolution.
description: To appear in the Proceedings of IAU Symposium No 295 "The intriguing life of massive galaxies", which was held in Beijing during August 2012
title: THE IMPACT OF PRIVATIZATION OF THE POWER SECTOR ON THE ECONOMY IN NIGERIA 2013-2022
title: Privatization of power sector
titleType: AlternativeTitle
Creators: name: Okeke, MaryPrecious Chiamaka
Publisher: name: Zenodo
Year: 2023
Subjects: Privatization
Economic Impact
Power sector

description: This study is a deep dive into the effects of Privatization of the Power Sector on Nigeria's economy, offering actionable strategies to bolster efficiency and sustainability. Through insightful analysis drawn from semi-structured interviews with diverse stakeholders, it uncovers a spectrum of viewpoints on the outcomes of privatization initiatives. While some stakeholders laud advancements in electricity supply, others underscore the drawbacks and lost advantages. The post-privatization challenges outlined encompass security concerns, equipment vandalism, uneven load distribution, antiquated infrastructure, and inconsistent service provision. Assessments of privatization's impact on electricity tariffs and the overall economy present a mosaic of opinions, with varying levels of satisfaction among stakeholders. The study proposes multifaceted strategies, including governmental intervention, infrastructure enhancement, engaging customers, equitable distribution of prepaid meters, anti-corruption measures, and capacity building. These recommendations aim to fortify the power sector's efficacy and sustainability, fostering Nigeria's economic growth and progress. The research underscores the pivotal role of the power sector in the nation's economy, emphasizing the imperative for collaborative efforts among stakeholders to ensure a robust and dependable power supply system.
The imprint of the crustal magnetic field on the thermal spectra and pulse profiles of isolated neutron stars
Creators: name: Perna, Rosalba
name: Vigano', Daniele
name: Pons, Jose' A.
name: Rea, Nanda
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Isolated neutron stars (NSs) show a bewildering variety of astrophysical manifestations, presumably shaped by the magnetic field strength and topology at birth. Here, using state-of-the art calculations of the coupled magnetic and thermal evolution of NSs, we compute the thermal spectra and pulse profiles expected for a variety of initial magnetic field configurations. In particular, we contrast models with purely poloidal magnetic fields to models dominated by a strong internal toroidal component. We find that, while the former displays double peaked profiles and very low pulsed fractions, in the latter, the anisotropy in the surface temperature produced by the toroidal field often results in a single pulse profile, with pulsed fractions that can exceed the 50-60% level even for perfectly isotropic local emission. We further use our theoretical results to generate simulated "observed" spectra, and show that blackbody (BB) fits result in inferred radii that can be significantly smaller than the actual NS radius, even as low as ~ 1-2 km for old NSs with strong internal toroidal fields and a high absorption column density along their line of sight. We compute the size of the inferred BB radius for a few representative magnetic field configurations, NS ages, and magnitudes of the column density. Our theoretical results are of direct relevance to the interpretation of X-ray observations of isolated NSs, as well as to the constraints on the equation of state of dense matter through radius measurements.
description: 12 pages, 7 figures, accepted to MNRAS
Experimentelle Studien zur Expression und Inhibition regulatorischer Gene der Antp-Klasse (Hox/ParaHox-Gene) in dem athekaten Hydrozoon Eleutheria dichotoma und dem Placozoon Trichoplax adhaerens
Creators: name: Jakob, Wolfgang
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Diplox genes
subject: gene inhibition
subject: gene expression
subject: bauplan patterning
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Foliar area measurement by a new technique that utilizes the conservative nature of fresh leaf surface density
Creators: name: Castillo, O. S.
name: Zaragoza, E. M.
name: Alvarado, C. J.
name: Barrera, M. G.
name: Dasgupta-Schubert, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: Leaf area LA, is a plant biometric index important to agroforestry and crop production. Previous works have demonstrated the conservativeness of the inverse of the product of the fresh leaf density and thickness, the so-called Hughes constant, K. We use this fact to develop LAMM, an absolute method of LA measurement, i.e. no regression fits or prior calibrations with planimeters. Nor does it require drying the leaves. The concept involves the in situ determination of K using geometrical shapes and their weights obtained from a subset of fresh leaves of the set whose areas are desired. Subsequently the LAs, at any desired stratification level, are derived by utilizing K and the previously measured masses of the fresh leaves. The concept was first tested in the simulated ideal case of complete planarity and uniform thickness by using plastic film covered card-paper sheets. Next the species-specific conservativeness of K over individual leaf zones and different leaf types from leaves of plants from two species, Mandevilla splendens and Spathiphyllum wallisii, was quantitatively validated. Using the global average K values, the LA of these and additional plants, were obtained. LAMM was found to be a rapid, simple, economic technique with accuracies, as measured for the geometrical shapes, that were comparable to those obtained by the planimetric method that utilizes digital image analysis, DIA. For the leaves themselves, there were no statistically significant differences between the LAs measured by LAMM and by the DIA and the linear correlation between the two methods was excellent.
description: Submitted to Journal of Agricultural Engineering
Serumproteomik zur Identifizierung tumorspezifischer Biomarker des nicht-kleinzelligen Bronchialkarzinoms
Creators: name: Chatterji, Bijon Gopal
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2009
Subjects: subject: Lungenkrebs
subject: Biomarker
subject: Serumproteomik
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Three-qubit topological phase on entangled photon pairs
Creators: name: Johansson, Markus
name: Khoury, Antonio Z.
name: Singh, Kuldip
name: Sjöqvist, Erik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose an experiment to observe the topological phases associated with cyclic evolutions, generated by local SU(2) operations, on three-qubit entangled states prepared on different degrees of freedom of entangled photon pairs. The topological phases reveal the nontrivial topological structure of the local SU(2) orbits. We describe how to prepare states showing different topological phases, and discuss their relation to entanglement. In particular, the presence of a $π/2$ phase shift is a signature of genuine tripartite entanglement in the sense that it does not exist for two-qubit systems.
description: 10 pages, 8 figure captions, 13 figures