cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fiche d'inventaire - Objet n° 1822
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
title: Magnetresonanztomographische Kriterien der Muskel-Sehneneinheilung nach Rotatorenmanschettenrekonstruktion: Analyse der Intra- und Interrater- Reliabilität
Creators: name: Loitsch, Thomas
name: Sgroi, Mirco
name: Reichel, Heiko
name: Kappe, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: 610 Medical sciences; Medicine

description: Fragestellung: Die Magnetresonanztomographie (MRT) stellt als bildgebendes Verfahren den Goldstandard zur Untersuchung der Rotatorenmanschettenintegrität nach Rekonstruktion dar. Zur Beurteilung der Muskel- Sehneneinheilung, welche eine Grundvoraussetzung der erfolgreichen Behandlung von Rotatorenmanschettenrupturen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Explicit isogenies of prime degree over quadratic fields
Creators: name: Banwait, Barinder S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G05 (primary), 11Y60, 11G15 (secondary)

description: Let $K$ be a quadratic field which is not an imaginary quadratic field of class number one. We describe an algorithm to compute the primes $p$ for which there exists an elliptic curve over $K$ admitting a $K$-rational $p$-isogeny. This builds on work of David, Larson-Vaintrob, and Momose. Combining this algorithm with work of Bruin-Najman, Özman-Siksek, and most recently Box, we determine the above set of primes for the three quadratic fields $\mathbb{Q}(\sqrt{-10})$, $\mathbb{Q}(\sqrt{5})$, and $\mathbb{Q}(\sqrt{7})$, providing the first such examples after Mazur's 1978 determination for $K = \mathbb{Q}$. The termination of the algorithm relies on the Generalised Riemann Hypothesis.
description: 36 pages, with an Appendix written jointly with Maarten Derickx. Manuscript changed after several rounds of Referee reports
Fiche d'inventaire - Objet n° 166 - Fragment
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Bronze

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Non-uniqueness in law for Boussinesq system forced by random noise
Creators: name: Yamazaki, Kazuo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Non-uniqueness in law for three-dimensional Navier-Stokes equations forced by random noise was established recently in Hofmanov$\acute{\mathrm{a}}$ et al. (2019, arXiv:1912.11841 [math.PR]). The purpose of this work is to prove non-uniqueness in law for the Boussinesq system forced by random noise. Diffusion within the equation of its temperature scalar field has a full Laplacian and the temperature scalar field can be initially smooth.
description: The range of the exponent of a fractional Laplacian in the 3D case has been expanded. Some other structural changes have been made. This preprint has not undergone peer review or any post-submission improvements or corrections
Panorama von der Höhe des Sustenpass
Creators: name: Studer, Gottlieb
name: Koller, Johann Caspar
Publisher: name: [s.n.]
Year: 1852
Subjects: Pass

description: von Gottl. Studer ; Copie vom C. Koller
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Fiche d'inventaire - Objet n° 1391
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Gebirgsansicht gezeichnet unter der Passlücke zwischen Lochstock und Bätzberg ob Andermatt : NB die Berge hatten sehr viel Schnee
Creators: name: Müller, Johann
Publisher: name: [s.n.]
Year: 1871

description: IM.
description: Unterhalb des Titels handschriftlicher Hinweis in Feder in Rot: "der Gotthard kommt in Richtung unter dem St Anna Gletscher und dem Kastelhorn durch"
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Fiche d'inventaire - Objet n° 7605 - Ailes
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Bronze

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
title: Effektivität einer präoperativen Embolisation auf den intraoperativen Blutverlust bei Nierenzellkarzinomen (NCC) der Wirbelsäulen sowie Identifikation von Einflussfaktoren, die zu einem erhöhten Blutverlust beitragen
Creators: name: Dreimann, Marc
name: Reitz, Matthias
name: Cramer, Christofer
name: Stangenberg, Martin
name: Eicker, Sven Oliver
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: Metastase
subject: Nierencellcarzinom
subject: Wirbelsäule
subject: Embolisation
subject: 610 Medical sciences; Medicine

description: Fragestellung: Operative Versorgung bei Metastasen der Wirbelsäule sind insbesondere bei Nierenzellkarzinomen (NCC) mit einem hohen Blutverlust verbunden. Diese Arbeit untersucht die Effektivität einer präoperativen Embolisation auf den intraoperativen Blutverlust sowie identifiziert[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Gezeichnet vom Mutsch oder Piz Pali in der Kette des Crispalt : 8500." s.m
Creators: name: Zeller-Horner, Heinrich
name: Koller, Johann Caspar
Publisher: name: [s.n.]
Year: 1852

description: H. Zeller fec: am 2. Aug 1839 ; Copie J. C. Koller
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Restorative glass: reversible, discreet restoration using structural glass components
Creators: name: Oikonomopoulou, Faidra
name: Bristogianni, Telesilla
name: Barou, Lida
name: Van Hees, Rob
name: Nijsse, Rob
name: Veer, Fred
name: Schellen, Henk
name: Van Schijndel, Jos
Publisher: name: SPOOL
Year: 2017

description: SPOOL, Vol 4 No 2: Energy innovation #4
A superconductor free of quasiparticles for seconds
Creators: name: Mannila, E. T.
name: Samuelsson, P.
name: Simbierowicz, S.
name: Peltonen, J. T.
name: Vesterinen, V.
name: Grönberg, L.
name: Hassel, J.
name: Maisi, V. F.
name: Pekola, J. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superconducting devices, based on the Cooper pairing of electrons, play an important role in existing and emergent technologies, ranging from radiation detectors to quantum computers. Their performance is limited by spurious quasiparticle excitations formed from broken Cooper pairs. Efforts to achieve ultra-low quasiparticle densities have reached time-averaged numbers of excitations on the order of one in state-of-the-art devices. However, the dynamics of the quasiparticle population as well as the time scales for adding and removing individual excitations remain largely unexplored. Here, we experimentally demonstrate a superconductor completely free of quasiparticles for periods lasting up to seconds. We monitor the quasiparticle number on a mesoscopic superconductor in real time by measuring the charge tunneling to a normal metal contact. Quiet, excitation-free periods are interrupted by random-in-time Cooper pair breaking events, followed by a burst of charge tunneling within a millisecond. Our results demonstrate the possibility of operating devices without quasiparticles with potentially improved performance. In addition, our experiment probes the origins of nonequilibrium quasiparticles in our device; the decay of the Cooper pair breaking rate over several weeks following the initial cooldown rules out processes arising from cosmic or long-lived radioactive sources.
description: 8 pages, 4 figures + supplementary information
title: A micro-CT study on trabecular transformation of mineralized architecture in normal postnatal spine growth in mice
Creators: name: Zenzes, Michael
name: Bortel, Emely
name: Duda, Georg N.
name: Mundlos, Stefan
name: Schuetz, Michael
name: Witte, Frank
name: Zaslansky, Paul
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: micro-CT
subject: spine
subject: mice
subject: bone formation
subject: 610 Medical sciences; Medicine

description: Objectives: Bone is a dynamic architectural structure, central to locomotion in all mammals. During physiological growth bone structurally responds to mechanical strain and changing musculoskeletal demands. This is true for both cortical and trabecular bone, with the latter heavily studied to understand[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Panorama vom Badus oder Sexmadunen nach der Natur : gezeichnet in Zeit von G. Studer den 12. August 1841
Creators: name: Studer, Gottlieb
name: Koller, Johann Caspar
Publisher: name: [s.n.]
Year: 1849

description: Copie nach G. Studer vom Casper Koller
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Fiche d'inventaire - Objet n° 814 - Miroir
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Bronze

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Vom Gipfel des Bristenstock : gezeichnet am 3. August
Creators: name: Zeller-Horner, Heinrich
name: Koller, Johann Caspar
Publisher: name: [s.n.]
Year: 1852
Subjects: Berg

description: v. H. Zeller; Copie vom C. Koller
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Die  Gletscher der Göscheneralp im Canton Uri : gezeichnet vom H. Zeller am 6. October 1836 von dem Vorberge auf der Mauer
Creators: name: Zeller-Horner, Heinrich
name: Koller, Johann Caspar
Publisher: name: [s.n.]
Year: 1852

description: Copie vom J. C. Koller
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Fiche d'inventaire - Objet n° 1156 - Bol
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Bronze

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
How does a zinc finger promote DNA end joining?”: Human DNA Ligase III
Creators: name: Kukshal, Vandna
name: Ellenberger, Tom
Publisher: name: F1000 Research Limited
Year: 2017

description: DNA replication and repair in mammalian cells involves three distinct DNA ligases: Ligase 1, Ligase 3 and Ligase 4. The evolutionary younger ligase III is restricted to higher eukaryotes and Involve in base excision repair with its nuclear binding partner Xrcc1, a critical factor for this DNA repair pathway. Ligase III is also present in the mitochondria, where its role in mitochondrial DNA (mtDNA) maintenance is independent of Xrcc1. Lethality of Ligase III knockouts was underlined by its crucial role  for mtDNA integrity.

Ligase III is an ATP Dependent Ligase with a multidomain architecture. It contains one N terminal PARP-1 like Znf Domain. Znf Domain deletion from DNA ligase III shows 5 fold decrement in DNA ligase III nick sealing activity but complete loss of  intermolecular ligation activity. We developed a TR-FRET based assay for Ligase III  to show the intermolecular ligation. This assay revealed DNA bridging activity of Ligase III prior to ligation.

To probe the role of  end bridging activity of Ligase III  in vivo  we need some inhibitors which can specifically inhibit this enzyme. we did High Throughput Screening  using TR-FRET based assay for ~ 2000 compounds and got some compounds which inhibit DNA end bridging activity. Which can be use further to trace the DNA Ligase III role in  mtDNA replication and repair.
Gebirgsansicht ob der Grossbodenalp auf Stock ob der Oberalpstrasse : gegen Oberalp See und Tavetsch
Creators: name: Müller, Johann
Publisher: name: [s.n.]
Year: 1871
Subjects: Tujetsch

description: I. Müller
description: Format unregelmässig
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Aussicht vom Orsirolo oder Winterhorn, einer der Spitzen des Gotthards : gezeichnet am 3. August
Creators: name: Studer, Gottlieb
Publisher: name: [s.n.]
Year: 1831

description: gez. v. Studer ; cop. v. Br.
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Fiche d'inventaire - Objet n° 4977 - Pot à pied (suite)
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Grès

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Electrodeless electrode model for electrical impedance tomography
Creators: name: Dardé, J.
name: Hyvönen, N.
name: Kuutela, T.
name: Valkonen, T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35R30, 35J25, 65N21

description: Electrical impedance tomography is an imaging modality for extracting information on the interior structure of a physical body from boundary measurements of current and voltage. This work studies a new robust way of modeling the contact electrodes used for driving current patterns into the examined object and measuring the resulting voltages. The idea is to not define the electrodes as strict geometric objects on the measurement boundary, but only to assume approximate knowledge about their whereabouts and let a boundary admittivity function determine the actual locations of the current inputs. Such an approach enables reconstructing the boundary admittivity, i.e. the locations and strengths of the contacts, at the same time and with analogous methods as the interior admittivity. The functionality of the new model is verified by two-dimensional numerical experiments based on water tank data.
description: 23 pages, 2 figures
Vom Schlossberg
Creators: name: Studer, Gottlieb
Publisher: name: [s.n.]
Year: 1863
Subjects: Kanton Uri

description: von & nach G. Studer von Bruiger
description: Aus der Sammlung Johann Müller-Wegmann; Depositum der SAC Sektion Uto in der Zentralbibliothek des SAC
Committee selection in DAG distributed ledgers and applications
Creators: name: Kuśmierz, Bartosz
name: Müller, Sebastian
name: Capossele, Angelo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: In this paper, we propose several solutions to the committee selection problem among participants of a DAG distributed ledger. Our methods are based on a ledger intrinsic reputation model that serves as a selection criterion. The main difficulty arises from the fact that the DAG ledger is a priori not totally ordered and that the participants need to reach a consensus on participants' reputation. Furthermore, we outline applications of the proposed protocols, including: (i) self-contained decentralized random number beacon; (ii) selection of oracles in smart contracts; (iii) applications in consensus protocols and sharding solutions. We conclude with a discussion on the security and liveness of the proposed protocols by modeling reputation with a Zipf law.
title: An automated system to decellularize soft tissue for perfused bone tissue engineering
Creators: name: Foehr, Peter
name: Kuntz, Lara
name: Tübel, Jutta
name: Schmitt, Andreas
name: von Deimling, Constantin
name: Obermeier, Andreas
name: von Eisenhart-Rothe, Rüdiger
name: Burgkart, Rainer
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: Bone
subject: Decellularization
subject: Perfusion Bioreactor
subject: Tissue Engineering
subject: Regenerative Medicine
subject: 610 Medical sciences; Medicine

description: Objectives: Tissue engineering is an emerging field to replace damaged or resected areas, especially in the musculoskeletal system. Recently, two strategies are followed to create new 3D tissues: A) Manufacturing of an artificial scaffold that serves as a primary structure to where cells can bind, and[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Fiche d'inventaire - Objet n° 7506 - Fragment (tige de fleur ?) (double)
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Bronze

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
title: Automated wounding machine to create standardized cartilage defects in an osteochondral model
Creators: name: Schwab, Andrea
name: Buß, Alexa
name: Naczenski, Sebastian
name: Walles, Heike
name: Ehlicke, Franziska
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: osteochondral explant
subject: cartilage defect
subject: ex vivo test system
subject: 610 Medical sciences; Medicine

description: Objectives: Cartilage treatment strategy is dependent on amongst others the lesion severity. Development and evaluation of cartilage treatment strategies in different defect geometries in pre-clinical models need to address defects ranging from fissures and cartilage only lesions to large defects involving[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
title: Hemodynamical evaluation and pathological change in osteonecrosis of the femoral head
Creators: name: Zhao, Dewei
name: Wang, Benjie
name: Liu, Baoyi
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: osteonecrosis
subject: pathology
subject: angiography
subject: micro computed tomography
subject: 610 Medical sciences; Medicine

description: Objectives: The combination of hemodynamical and bone trabecular parameters change may contribute to the development of osteonecrosis of the femoral head (ONFH), which leads to inadequate bone repair that advances to subchondral fracture. From January 2008 to December 2012, images and pathological analysis[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Scattering Problems via Real-time Wave Packet Scattering
Creators: name: Staelens, M.
name: Marsiglio, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics Education (physics.ed-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we use a straightforward numerical method to solve scattering models in one-dimensional lattices based on a tight-binding band structure. We do this by using the wave packet approach to scattering, which presents a more intuitive physical picture than the traditional plane wave approach. Moreover, a general matrix diagonalization method that is easily accessible to undergraduate students taking a first course in quantum mechanics is used. Beginning with a brief review of wave packet transport in the continuum limit, comparisons are made with its counterpart in a lattice. The numerical results obtained through the diagonalization method are then benchmarked against analytic results. The case of a resonant dimer is investigated in the lattice, and several resonant values of the mean wave packet momentum are identified. The transmission coefficients obtained for a plane wave incident on a step potential and rectangular barrier are compared by investigating an equivalent scenario in a lattice. Lastly, we present several short simulations of the scattering process which emphasize how a simple methodology can be used to visualize some remarkable phenomena.
description: 11 pages, 3 new figures added as "gateways" to the animations
title: Improved early weight bearing by increased vertical loads after distal tibial fracture with an angle stable locking system compared to conventional intramedullary nailing
Creators: name: Agres, Alison
name: Höntzsch, Dankward
name: El Attal, René
name: Schaser, Klaus-Dieter
name: Pohlemann, Tim
name: Joeris, Alexander
name: Hess, Denise
name: Duda, Georg
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: tibia fracture
subject: intramedullary nail
subject: angle stable locking
subject: weight bearing
subject: functional analysis
subject: 610 Medical sciences; Medicine

description: Objectives: Conventional unreamed intramedullary (IM) nailing of distal tibial fractures often results in high inter-fragmentary (IF) movements associated with pain, disuse, and possibly delayed bone healing. An angle stable locking system (ASLS) was developed and validated in sheep to minimize shear[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Fiche d'inventaire - Objet n° 6638 - Petit vase globuleux
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Terre cuite

description: Source: FCA/3/2
description: Relation: Voir 6622
description: IIIF manifest
description: created: 1950/1970
Fiche d'inventaire - Objet n° 64SS121 (1/4) - Fond de jarre
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Terre

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Fiche d'inventaire - Objet n° 854 - Coupelle estampée
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Bronze

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Fiche d'inventaire - Objet n° 1576
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
title: The efficacy of multiple drilling and alendronate compared with multiple drilling alone in the treatment of osteonecrosis of the femoral head
Creators: name: Wu, Cheng-Ta
name: Chen, Yu-Jie
name: Huang, Kuo-Chin
name: Peng, Kuo-Ti
name: Wang, Jun-Wen
name: Lee, Mel S
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: osteonecrosis of hip
subject: multiple drilling
subject: alendronate
subject: bisphosphonate
subject: 610 Medical sciences; Medicine

description: Objectives: Osteonecrosis of the femoral head (ONFH) is a debilitating disease that often leads to collapse of subchondral bone and destruction of hip joint. Early intervention prior to collapse is usually required to preserve the hip and defer the need for total hip arthroplasty. Interests had been[for full text, please go to the a.m. URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Fiche d'inventaire - Objet n° 4946 - Petit vase globuleux (suite)
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Terre cuite

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Fiche d'inventaire - Objet n° 1706
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Hermeian haloes: Field haloes that interacted with both the Milky Way and M31
Creators: name: Newton, Oliver
name: Libeskind, Noam I.
name: Knebe, Alexander
name: Sánchez-Conde, Miguel A.
name: Sorce, Jenny G.
name: Pilipenko, Sergey
name: Steinmetz, Matthias
name: Pakmor, Ruediger
name: Tempel, Elmo
name: Hoffman, Yehuda
name: Vogelsberger, Mark
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Local Group is a unique environment in which to study the astrophysics of galaxy formation. The proximity of the Milky Way and M31 enhances the frequency of interactions of the low-mass halo population with more massive dark matter haloes, which increases their concentrations and strips them of gas and other material. Some low-mass haloes pass through the haloes of the Milky Way or M31 and are either ejected into the field or exchanged between the two primary hosts. We use high resolution gas-dynamical simulations to describe a new class of field haloes that passed through the haloes of both the Milky Way and M31 at early times and are almost twice as concentrated as field haloes that do not interact with the primary pair. These 'Hermeian' haloes are distributed anisotropically at larger distances from the Local Group barycentre than the primary haloes and appear to cluster along the line connecting the Milky Way and M31. Hermeian haloes facilitate the exchange of dark matter, gas, and stars between the Milky Way and M31 and can enhance the star formation rate of the gas in the primary haloes during their interactions with them. We also show that some Hermeian haloes can host galaxies that, because they are embedded in haloes that are more concentrated than regular field haloes, are promising targets for indirect dark matter searches beyond the Milky Way virial radius and can produce signals that are competitive with those of some dwarf galaxies. Hermeian galaxies in the Local Group should be detectable by forthcoming wide-field imaging surveys.
description: 14 pages, 7 figures, 1 appendix. Accepted by MNRAS. Plotting scripts and data available from: http://doi.org/10.5281/zenodo.6629724
Another Proof of Born's Rule on Arbitrary Cauchy Surfaces
Creators: name: Lill, Sascha
name: Tumulka, Roderich
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In 2017, Lienert and Tumulka proved Born's rule on arbitrary Cauchy surfaces in Minkowski space-time assuming Born's rule and a corresponding collapse rule on horizontal surfaces relative to a fixed Lorentz frame, as well as a given unitary time evolution between any two Cauchy surfaces, satisfying that there is no interaction faster than light and no propagation faster than light. Here, we prove Born's rule on arbitrary Cauchy surfaces from a different, but equally reasonable, set of assumptions. The conclusion is that if detectors are placed along any Cauchy surface $Σ$, then the observed particle configuration on $Σ$ is a random variable with distribution density $|Ψ_Σ|^2$, suitably understood. The main different assumption is that the Born and collapse rules hold on any spacelike hyperplane, i.e., at any time coordinate in any Lorentz frame. Heuristically, this follows if the dynamics of the detectors is Lorentz invariant.
description: 37 pages, 12 figures
title: Ist die anatomische Reposition von Wirbelkörperfrakturen minimalinvasiv möglich? Ergebnisse einer prospektiven Studie mit Tektona – einem neuen Kyhpoplastieverfahren
Creators: name: Rotter, Robert
name: Moszko, Slawomir
name: Dreimann, Marc
name: Viezens, Lennart
name: Knizia, Karsten
name: Huwert, Oliver
name: Krüger, Antonio
name: Mittlmeier, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: Wirbel
subject: Fraktur
subject: Kyphoplastie
subject: Vertebroplastie
subject: Zement
subject: Reposition
subject: 610 Medical sciences; Medicine

description: Fragestellung: Zur minimalinvasiven Stabilisierung von traumatischen und osteoporotischen Wirbelkörperkompressionsfrakturen werden neben den klassischen Schrauben-Stabsystemen und der Kyphoplastie vermehrt expandierbare Implantate mit und ohne Zement verwendet. Ziel ist idealerweise eine Reduzierung[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Sonnenfleckenzeichnung L-Nr. 835.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.10.1942, erstellt von Karl Rapp in Locarno-Monti
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf dem Vordruck der Eidgenössischen Sternwarte Zürich. Instrument 1942 in Locarno, laut Astronomischen Mitteilungen Nr. 142, S. 50: Spiegelfernrohr, Öffnung von 11 cm, Okular von 88facher Vergrösserung, Beobachtungen mit einem Graukeil. - Auf Zeichnungen von Ende Oktober bzw. Ende November sind testweise Okulare von 55x und 122x Vergrösserung und Vergleiche vermerkt. Es sind oft Resultate mehrerer Aufnahmen pro Tag aufgelistet. Zudem sind immer Angaben für die Bestimmung der Fleckenrelativzahl notiert. Ab 1. August wird dank dem neu verwendeten Vordruck mit D = 25 cm gearbeitet.
Zeichnung aus der Zeit der Beobachtertätigkeit von Ing. Karl Rapp als Privat-Astronom, die er seit den Neunzehnvierziger Jahren für die Eidgenössische Sternwarte Zürich ausführte. Aus den ersten zwei Jahren der freiwilligen Mitarbeit sind nur einzelne Stücke überliefert. Erst ab 1942 ist jeweils eine ergänzende Serie in Zürich aufbewahrt worden. Nochmals fünf Jahre später arbeitete Karl Rapp neu auf vertraglicher Basis weiter mit, bis schliesslich nach einem weiteren Jahrzehnt die permanente Beobachtungsstation in Locarno-Monti geschaffen wurde, welche an die langjährige Serie von Karl Rapp anknüpfte
title: Führt die intraoperative Kontrolle der geplanten Implantatlage mittels 3-D- Scan zu einer Optimierung der Implantatlage und damit Erhöhung der Sicherheit in der anatomisch anspruchsvollen Region C1/2?
Creators: name: Jarvers, Jan-Sven
name: Spiegl, Ulrich
name: Glasmacher, Stefan
name: Von der Höh, Nicolas
name: Völker, Anna
name: Josten, Christoph
name: Heyde, Christoph E.
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: Intraoperative 3D- Bildgebung
subject: Densfraktur
subject: obere HWS
subject: 610 Medical sciences; Medicine

description: Fragestellung: Je nach Frakturtyp oder Pathologie stehen zur Versorgung verschiedene Verfahren wie die ventrale Zugschraubenosteosynthese, die ventrale transartikuläre C1/2- Stabilsierung sowie dorsale Verfahren nach Goel/Harms zur Verfügung. Allen Verfahren ist gemein, dass [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Matrix-valued orthogonal polynomials related to hexagon tilings
Creators: name: Groot, Alan
name: Kuijlaars, Arno B. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: In this paper, we study a class of matrix-valued orthogonal polynomials (MVOPs) that are related to 2-periodic lozenge tilings of a hexagon. The general model depends on many parameters. In the cases of constant and $2$-periodic parameter values we show that the MVOP can be expressed in terms of scalar polynomials with non-Hermitian orthogonality on a closed contour in the complex plane. The 2-periodic hexagon tiling model with a constant parameter has a phase transition in the large size limit. This is reflected in the asymptotic behavior of the MVOP as the degree tends to infinity. The connection with the scalar orthogonal polynomials allows us to find the limiting behavior of the zeros of the determinant of the MVOP. The zeros tend to a curve $\widetildeΣ_0$ in the complex plane that has a self-intersection. The zeros of the individual entries of the MVOP show a different behavior and we find the limiting zero distribution of the upper right entry under a geometric condition on the curve $\widetildeΣ_0$ that we were unable to prove, but that is convincingly supported by numerical evidence.
description: 31 pages, 10 figures
Fiche d'inventaire - Objet n° 1205
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Investigation of the monopole magneto-chemical potential in spin ices using capacitive torque magnetometry
Creators: name: Anand, Naween
name: Barry, Kevin
name: Neu, Jennifer N.
name: Graf, David E.
name: Huang, Qing
name: Zhou, Haidong
name: Siegrist, Theo
name: Changlani, Hitesh J.
name: Beekman, Christianne
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The single-ion anisotropy and magnetic interactions in spin-ice systems give rise to unusual non-collinear spin textures, such as Pauling states and magnetic monopoles. The effective spin correlation strength ($J_{eff}$) determines the relative energies of the different spin-ice states. With this work, we display the capability of capacitive torque magnetometry in characterizing the magneto-chemical potential associated with monopole formation. We build a magnetic phase diagram of Ho$_2$Ti$_2$O$_7$, and show that the magneto-chemical potential depends on the spin-sublattice ($α$ or $β$), i.e., the Pauling state, involved in the transition. Monte-Carlo simulations using the dipolar-spin-ice Hamiltonian support our findings of a sublattice-dependent magneto-chemical potential, but the model underestimates the $J_{eff}$ for the $β$-sublattice. Additional simulations, including next-nearest neighbor interactions ($J_2$), show that long-range exchange terms in the Hamiltonian are needed to describe the measurements. This demonstrates that torque magnetometry provides a sensitive test for $J_{eff}$ and the spin-spin interactions that contribute to it.
description: Main text: 12 pages, 5 figures, 1 table; Supplemental Materials: 12 pages, 7 figures, 6 tables
title: Insertionswinkel in Bezug auf die Lagequalität navigierter zervikaler Pedikelschrauben
Creators: name: Bredow, Jan
name: Meyer, Carolin
name: Löhrer, Lars
name: Libutzki, Pia
name: Stein, Gregor
name: Eysel, Peer
name: Beyer, Frank
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: Pedikelschrauben
subject: Halswirbelsäule
subject: Insertionswinkel
subject: 610 Medical sciences; Medicine

description: Fragestellung: Die Stabilisierung der Halswirbelsäule (HWS) erfolgt zunehmend navigiert mittels dorsal eingebrachter Pedikelschrauben. In etlichen theoretischen, radiologischen und anatomischen Arbeiten wurden optimale, transversale Insertionswinkel für eine gute Schraubenlage bei Pedikelschrauben[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Fiche d'inventaire - Objet n° 4836 - Feuille d'or gravée
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Or

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Fiche d'inventaire - Objet n° 1108 - Preah Patima
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Argent

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Convex minorants and the fluctuation theory of Lévy processes
Creators: name: Cázares, Jorge Ignacio González
name: Mijatović, Aleksandar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G51 (Primary)

description: We establish a novel characterisation of the law of the convex minorant of any Lévy process. Our self-contained elementary proof is based on the analysis of piecewise linear convex functions and requires only very basic properties of Lévy processes. Our main result provides a new simple and self-contained approach to the fluctuation theory of Lévy processes, circumventing local time and excursion theory. Easy corollaries include classical theorems, such as Rogozin's regularity criterion, Spitzer's identities and the Wiener-Hopf factorisation, as well as a novel factorisation identity.
description: 18 pages, 2 figures, updated references, new section 2.3 on the vertex process, short video on https://youtu.be/hEg4YmxOgXA
title: Variation der Anordnung von Textilelektroden anhand einer FE-Analyse unter Berücksichtigung anatomischer Gesichtspunkte
Creators: name: Münst, Philipp
name: Seidel, Benjamin
name: Steinke, Hanno
name: Heyde, Christoph E.
name: Voigt, Christian
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: Finite Elemente Modell
subject: Transkutane Elektrostimulation
subject: 610 Medical sciences; Medicine

description: Fragestellung: Die Elektrostimulation lässt sich bei Patienten zur Rehabilitation, Wiederherstellung von motorischer Funktionalität und für Trainingszwecke im Sport- und Fitnessbereich einsetzten. Dabei ist die Aktivierung von Muskeln mit Hilfe elektrischer Stimulation durch die Hautoberfläche[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
Fiche d'inventaire - Objet n° 4947 - Petit vase lenticulaire
Creators: name: École Française D'Extrême-Orient
name: Conservation D'Angkor
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: Grès

description: Source: FCA/3/2
description: IIIF manifest
description: created: 1950/1970
Sonnenfleckenzeichnung L-Nr. 761.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.07.1942, erstellt von Karl Rapp in Locarno-Monti
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1942

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Zeichnung nach eigener Vorlage in Locarno-Monti. Instrument 1942 in Locarno, laut Astronomischen Mitteilungen Nr. 142, S. 50: Spiegelfernrohr, Öffnung von 11 cm, Okular von 88facher Vergrösserung, Beobachtungen mit einem Graukeil. - Auf Zeichnungen von Ende Oktober bzw. Ende November sind testweise Okulare von 55x und 122x Vergrösserung und Vergleiche vermerkt. Es sind oft Resultate mehrerer Aufnahmen pro Tag aufgelistet. Zudem sind immer Angaben für die Bestimmung der Fleckenrelativzahl notiert. Ab 1. August wird dank dem neu verwendeten Vordruck mit D = 25 cm gearbeitet.
Zeichnung aus der Zeit der Beobachtertätigkeit von Ing. Karl Rapp als Privat-Astronom, die er seit den Neunzehnvierziger Jahren für die Eidgenössische Sternwarte Zürich ausführte. Aus den ersten zwei Jahren der freiwilligen Mitarbeit sind nur einzelne Stücke überliefert. Erst ab 1942 ist jeweils eine ergänzende Serie in Zürich aufbewahrt worden. Nochmals fünf Jahre später arbeitete Karl Rapp neu auf vertraglicher Basis weiter mit, bis schliesslich nach einem weiteren Jahrzehnt die permanente Beobachtungsstation in Locarno-Monti geschaffen wurde, welche an die langjährige Serie von Karl Rapp anknüpfte
title: Эконометрика
title: Курс лекций
titleType: Subtitle
Creators: name: Ивченко Ю.С.
Publisher: name: Вузовское образование
Year: 2018

description: Учебное пособие предлагает краткое и систематизированное изложение основных понятий и методов эконометрики. Содержит теоретические сведения по следующим разделам дисциплины: парная и множественная линейная регрессия и корреляция, парная нелинейная регрессия, моделирование тренда и сезонности временных рядов, использование фиктивных переменных при включении качественного признака-фактора в эконометрическую модель. Рассматриваются методы корреляционного, регрессионного, дисперсионного анализа, а также методики проверки статистической значимости моделей и их остатков на наличие гетероскедастичности и автокорреляции. Большое внимание уделено реализации этих методов в табличном процессоре MS Excel. Пособие предназначено для студентов очной и заочной форм обучения направления подготовки «Экономика» всех профилей бакалавриата и магистратуры.
description: The textbook offers a brief and systematic presentation of the basic concepts and methods of econometrics. Contains theoretical information on the following topics discipline: a steam room and multiple linear regression and correlation, steamroom, nonlinear regression, modeling the trend and seasonality of time series, the use of dummy variables when the inclusion of the qualitative trait-factor econometric model. Discusses methods of correlation, regression, analysis of variance and testing of statistical significance of the models and their residues for the presence of heteroscedasticity and autocorrelation. Great attention is paid to the implementation of these methods in a tabular processor MS Excel. The textbook is intended for students of internal and correspondence forms of education of specialty "Economics" of all profiles of undergraduate and graduate programs.
title: Bone sialoprotein-coated 3D-printed hydroxyapatite scaffolds stimulate bone healing in a rat model
Creators: name: Baranowski, Andreas
name: Klein, Anja
name: Ritz, Ulrike
name: Hofmann, Alexander
name: Rommens, Pol M.
name: Götz, Hermann
Publisher: name: German Medical Science GMS Publishing House
Year: 2017
Subjects: subject: Bone Sialoprotein (BSP)
subject: biomaterial
subject: scaffold
subject: 3D printing
subject: bone substitute
subject: 610 Medical sciences; Medicine

description: Fragestellung: It is a difficult road from idea to implementation of a biomaterial that is able to replace conventional bone grafts in the treatment of large-scale bone defects. 3-dimensional (3D) plotting introduced solutions to some contradictory requirements for bone substitutes. 3D-printed scaffolds[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2017)
86 Briefe, 23 Postkarten, 1 Karte, 1 Telegramm, 3 Beilagen an Elisabeth Betsy Meyer
Creators: name: Haessel, Hermann Adolf
Publisher: name: [s.n.]
Year: 1895

description: von H[ermann Adolf] Haessel
description: Beilage: Ankündigung der Neuauflagen zum 70. Geburtstag von Conrad Ferdinand Meyer (Nr. 151)
description: Beilage: Zeitungsausschnitt vom 13. Dezember 1898 betreffend allfällige Steuernachzahlungen (Nr. 215)
description: Beilage: Kopie der Korrespondenz zwischen H.A. Haessel und den Brüdern Adolf und Alfred Frey (Nr. 225)
description: Mit 3 Beischriften von Klara Sorgenfrey (Nr. 194, Nr. 228, Nr. 232)
description: Mit 1 Beischrift von B. Meyer (Nr. 204)
description: Dabei 3 Briefe von Klara Sorgenfrey an B. Meyer, dat. Leipzig, 29.7.1898 (Nr. 200), dat. Leipzig, 12.3.1900 (Nr. 244) und dat. Leipzig, 8.8.1901 (Nr. 251)
description: Dabei 3 Postkarten von Klara Sorgenfrey an B. Meyer, dat. Leipzig, 21.12.1900 (Nr. 248), dat. Leipzig, 29.12.1900 (Nr. 249) und dat. Leipzig, 26.1.1901 (Nr. 250)
description: Dabei 1 Telegramm des H.-Haessel-Verlags, dat. Leipzig, 17.10.1908 (Nr. 252)
Expected Scalarised Returns Dominance: A New Solution Concept for Multi-Objective Decision Making
Creators: name: Hayes, Conor F.
name: Verstraeten, Timothy
name: Roijers, Diederik M.
name: Howley, Enda
name: Mannion, Patrick
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In many real-world scenarios, the utility of a user is derived from the single execution of a policy. In this case, to apply multi-objective reinforcement learning, the expected utility of the returns must be optimised. Various scenarios exist where a user's preferences over objectives (also known as the utility function) are unknown or difficult to specify. In such scenarios, a set of optimal policies must be learned. However, settings where the expected utility must be maximised have been largely overlooked by the multi-objective reinforcement learning community and, as a consequence, a set of optimal solutions has yet to be defined. In this paper we address this challenge by proposing first-order stochastic dominance as a criterion to build solution sets to maximise expected utility. We also propose a new dominance criterion, known as expected scalarised returns (ESR) dominance, that extends first-order stochastic dominance to allow a set of optimal policies to be learned in practice. We then define a new solution concept called the ESR set, which is a set of policies that are ESR dominant. Finally, we define a new multi-objective distributional tabular reinforcement learning (MOT-DRL) algorithm to learn the ESR set in a multi-objective multi-armed bandit setting.
Upward planar drawings with two slopes
Creators: name: Klawitter, Jonathan
name: Mchedlidze, Tamara
Publisher: name: arXiv
Year: 2021
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences
subject: 68R10, 05C62

description: In an upward planar 2-slope drawing of a digraph, edges are drawn as straight-line segments in the upward direction without crossings using only two different slopes. We investigate whether a given upward planar digraph admits such a drawing and, if so, how to construct it. For the fixed embedding scenario, we give a simple characterisation and a linear-time construction by adopting algorithms from orthogonal drawings. For the variable embedding scenario, we describe a linear-time algorithm for single-source digraphs, a quartic-time algorithm for series-parallel digraphs, and a fixed-parameter tractable algorithm for general digraphs. For the latter two classes, we make use of SPQR-trees and the notion of upward spirality. As an application of this drawing style, we show how to draw an upward planar phylogenetic network with two slopes such that all leaves lie on a horizontal line.