cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spectral properties of distance matrices
Creators: name: Bogomolny, E.
name: Bohigas, O.
name: Schmit, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Distance matrices are matrices whose elements are the relative distances between points located on a certain manifold. In all cases considered here all their eigenvalues except one are non-positive. When the points are uncorrelated and randomly distributed we investigate the average density of their eigenvalues and the structure of their eigenfunctions. The spectrum exhibits delocalized and strongly localized states which possess different power-law average behaviour. The exponents depend only on the dimensionality of the manifold.
description: 31 pages, 9 figures
Riparian Assessment Validation for North Saskatchewan Region Lakes
Creators: Fiera Biological Consulting Ltd.
Publisher: name: University of Alberta Library
Year: 2019

The overall goal of this project was to assess the performance of the GIS-based method used to evaluate the intactness of riparian habitats along the shorelines of Pigeon, Gull, Sylvan, and Buffalo lakes and their associated tributaries. (As cited in introduction.)
A Sum Rule for Nonlinear Optical Susceptibilities
Creators: name: Romero, Luciana C. Davila
name: Andrews, David L.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optics (physics.optics)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is explicitly shown, for optical processes arbitrarily comprising two-, three- or four-photon interactions, that the sum over all matter states of any optical susceptibility is exactly zero. The result remains true even in frequency regions where damping is prominent. Using a quantum electrodynamical framework to render the photonic nature of the fundamental interactions, the result emerges in the form of a traceless operator in Hilbert space. The generality of the sum rule and its significance as a thermodynamic limit are discussed, and the applicability to real systems is assessed.
description: 11 pages
Are Quantitative Features of Lung Nodules Reproducible at Different CT Acquisition and Reconstruction Parameters?
Creators: name: Erdal, Barbaros S.
name: Demirer, Mutlu
name: Amadi, Chiemezie C.
name: Ibrahim, Gehan F. M.
name: O'Donnell, Thomas P.
name: Grimmer, Rainer
name: Wimmer, Andreas
name: Little, Kevin J.
name: Gupta, Vikash
name: Bigelow, Matthew T.
name: Prevedello, Luciano M.
name: White, Richard D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Consistency and duplicability in Computed Tomography (CT) output is essential to quantitative imaging for lung cancer detection and monitoring. This study of CT-detected lung nodules investigated the reproducibility of volume-, density-, and texture-based features (outcome variables) over routine ranges of radiation-dose, reconstruction kernel, and slice thickness. CT raw data of 23 nodules were reconstructed using 320 acquisition/reconstruction conditions (combinations of 4 doses, 10 kernels, and 8 thicknesses). Scans at 12.5%, 25%, and 50% of protocol dose were simulated; reduced-dose and full-dose data were reconstructed using conventional filtered back-projection and iterative-reconstruction kernels at a range of thicknesses (0.6-5.0 mm). Full-dose/B50f kernel reconstructions underwent expert segmentation for reference Region-Of-Interest (ROI) and nodule volume per thickness; each ROI was applied to 40 corresponding images (combinations of 4 doses and 10 kernels). Typical texture analysis metrics (including 5 histogram features, 13 Gray Level Co-occurrence Matrix, 5 Run Length Matrix, 2 Neighboring Gray-Level Dependence Matrix, and 2 Neighborhood Gray-Tone Difference Matrix) were computed per ROI. Reconstruction conditions resulting in no significant change in volume, density, or texture metrics were identified as "compatible pairs" for a given outcome variable. Our results indicate that as thickness increases, volumetric reproducibility decreases, while reproducibility of histogram- and texture-based features across different acquisition and reconstruction parameters improves. In order to achieve concomitant reproducibility of volumetric and radiomic results across studies, balanced standardization of the imaging acquisition parameters is required.
Deformation of a renormalization-group equation applied to infinite-order phase transitions
Creators: name: Mukaida, Hisamitsu
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: By adding a linear term to a renormalization-group equation in a system exhibiting infinite-order phase transitions, asymptotic behavior of running coupling constants is derived in an algebraic manner. A benefit of this method is presented explicitly using several examples.
description: 6 pages, 5 figures, revtex4, typo corrected, references added
title: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f.072
Creators: name: Rouzeau, Benoît
name: Rouzeau, Benoît
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cistercien
subject: cartulaire

description: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains. Numérisation en mode image
description: Relation: https://cisterciensetressources.lamop.fr/
description: Bibliographic citation: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f.072, in Projet Cisterciens et Ressources [Ressource en ligne], https://cisterciensetressources.lamop.fr
description: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f. 072
The energy and scale dependence of $\hat{q}$ and the JET puzzle
Creators: name: Kumar, Amit
name: Majumder, Abhijit
name: Shen, Chun
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present an attempt to probe the underlying structure of the quark-gluon plasma (QGP) at high resolution, based on the extracted jet transport coefficient $\hat{q}$. We argue that the exchanged momentum $k$ between the hard parton and the medium varies over a range of scales, and for $k\geq$ 1 GeV, $\hat{q}$ can be expressed in terms of a parton distribution function (PDF). Because the mass of a QGP constituent is unknown, we define a scaling variable $x_N$ to represent the ratio of the parton momentum to the momentum of a self-contained section of the plasma which has a mass of 1 GeV. This scaling variable is used to parametrize the QGP-PDF. Calculations, based on this reconstructed $\hat{q}$ are compared to data sensitive to the hardcore of jets $i.e.,$ the single hadron suppression in terms of the nuclear modification factor $R_{AA}$ and the azimuthal anisotropy parameter $v_{2}$, as a function of transverse momentum $p_{\mathrm{T}}$, centrality and energy of the collision. It is demonstrated that the scale evolution of the QGP-PDF is responsible for the reduction in the normalization of $\hat{q}$ between fits to Relativistic Heavy-Ion Collider (RHIC) and Large Hadron Collider (LHC) data; a puzzle, first discovered by the JET collaboration.
description: 10 pages, 8 figures, revtex4
Space-Time Complexity in Hamiltonian Dynamics
Creators: name: Afraimovich, V.
name: Zaslavsky, G. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: New notions of the complexity function C(epsilon;t,s) and entropy function S(epsilon;t,s) are introduced to describe systems with nonzero or zero Lyapunov exponents or systems that exhibit strong intermittent behavior with ``flights'', trappings, weak mixing, etc. The important part of the new notions is the first appearance of epsilon-separation of initially close trajectories. The complexity function is similar to the propagator p(t0,x0;t,x) with a replacement of x by the natural lengths s of trajectories, and its introduction does not assume of the space-time independence in the process of evolution of the system. A special stress is done on the choice of variables and the replacement t by eta=ln(t), s by xi=ln(s) makes it possible to consider time-algebraic and space-algebraic complexity and some mixed cases. It is shown that for typical cases the entropy function S(epsilon;xi,eta) possesses invariants (alpha,beta) that describe the fractal dimensions of the space-time structures of trajectories. The invariants (alpha,beta) can be linked to the transport properties of the system, from one side, and to the Riemann invariants for simple waves, from the other side. This analog provides a new meaning for the transport exponent mu that can be considered as the speed of a Riemann wave in the log-phase space of the log-space-time variables. Some other applications of new notions are considered and numerical examples are presented.
description: 27 pages, 6 figures
A novel adaption of the Simplex algorithm for linear real arithmetic
Creators: name: Nalbach, Jasper Kurt Ferdinand
Publisher: name: RWTH Aachen University
Year: 2020
Subjects: subject: 004

description: Masterarbeit, RWTH Aachen University, 2020; Aachen 79 Seiten (2020). = Masterarbeit, RWTH Aachen University, 2020
description: Published by Aachen
Positive and Negative Goos-Hanchen Shifts and Negative Phase--Velocity Mediums (alias Left-Handed Materials)
Creators: name: Lakhtakia, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: On total reflection from a half-space filled with an isotropic, homogeneous, weakly dissipative, dielectric-magnetic medium with negative phase-velocity (NPV) characteristics, it is shown here that a linearly polarized beam can experience either a negative or a positive Goos-Hanchen shift. The sign of the shift depends on the polarization state of the beam as well as on the signs of the real parts of the permittivity and the permeability of the NPV medium.
description: 5 pages
Presence of 3d Quadrupole Moment in LaTiO3 Studied by 47,49Ti NMR
Creators: name: Kiyama, Takashi
name: Itoh, Masayuki
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ti NMR spectra of LaTiO3 are reexamined and the orbital state of this compound is discussed. The NMR spectra of LaTiO3 taken at 1.5 K under zero external field indicate a large nuclear quadrupole splitting. This splitting is ascribed to the presence of the rather large quadrupole moment of 3d electrons at Ti sites, suggesting that the orbital liquid model proposed for LaTiO3 is inappropriate. The NMR spectra are well explained by the orbital ordering model expressed approximately as $1/\sqrt{3}(d_{xy}+d_{yz}+d_{zx})$ originating from a crystal field effect. It is also shown that most of the orbital moment is quenched.
description: 4 pages, 3 fugures; to appear in Phys. Rev. Lett
Additional file 4 of Phytohormone and integrated mRNA and miRNA transcriptome analyses and differentiation of male between hermaphroditic floral buds of andromonoecious Diospyros kaki Thunb
Creators: name: Li, Huawei
name: Wang, Liyuan
name: Mai, Yini
name: Han, Weijuan
name: Suo, Yujing
name: Diao, Songfeng
name: Sun, Peng
name: Fu, Jianmin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 4: Table S3.
Hypostomus jaguar Zanata, Sardeiro & Zawadzki 2013
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Loricariidae
Hypostomus
Hypostomus jaguar

description: Hypostomus jaguar Zanata, Sardeiro & Zawadzki, 2013: 249, fig. 1.
Paratypes: 1 lot, 2 specimens —NUP 4448, 2, 126.8– 152.9 mm SL: Brazil, Bahia, Itaberaba, rio Paraguaçu basin, Fazenda Santo Antônio, 10 km from Vila São Vicente, out of roadway BA 242, 134 meters a.s.l., A.M. Zanata, P. Camelier, J.O. Birindelli, O. T. Oyakawa, M.P. Geraldes & P. Moura, 7 June 2005.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 23, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Hypostomus khimaera Tencatt, Zawadzki & Froehlich 2014
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Loricariidae
Hypostomus
Hypostomus khimaera

description: Hypostomus khimaera Tencatt, Zawadzki & Froehlich, 2014: 598, fig. 13.
Paratypes: 1 lot, 4 specimens —NUP 14506, 4, 125.7– 141.5 mm SL: Brazil, Mato Grosso, Porto Estrela, córrego Salobo, rio Paraguai basin, Serra das Araras, 15°39’03”S, 57°12’54”W, O.A. Shibatta, 2–3 Aug 1999.
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on page 23, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Local regimes of turbulence in 3D magnetic reconnection
Creators: name: Lapenta, G.
name: Pucci, F.
name: Goldman, M. V.
name: Newman, D. L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The process of magnetic reconnection when studied in Nature or when modeled in 3D simulations differs in one key way from the standard 2D paradigmatic cartoon: it is accompanied by much fluctuations in the electromagnetic fields and plasma properties. We developed a diagnostics to study the spectrum of fluctuations in the various regions around a reconnection site. We define the regions in terms of the local value of the flux function that determines the distance form the reconnection site, with positive values in the outflow and negative values in the inflow. We find that fluctuations belong to two very different regimes depending on the local plasma beta (defined as the ratio of plasma and magnetic pressure). The first regime develops in the reconnection outflows where beta is high and is characterized by a strong link between plasma and electromagnetic fluctuations leading to momentum and energy exchanges via anomalous viscosity and resistivity. But there is a second, low beta regime: it develops in the inflow and in the region around the separatrix surfaces, including the reconnection electron diffusion region itself. It is remarkable that this low beta plasma, where the magnetic pressure dominates, remain laminar even though the electromagnetic fields are turbulent.
description: arXiv admin note: substantial text overlap with arXiv:1904.02094
Half-metallic ferromagnetism and structural stability of zincblende phases of the transition-metal chalcogenides
Creators: name: Xie, Wen-Hui
name: Xu, Ya-Qiong
name: Liu, Bang-Gui
name: Pettifor, D G
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An accurate density-functional method is used to study systematically half-metallic ferromagnetism and stability of zincblende phases of 3d-transition-metal chalcogenides. The zincblende CrTe, CrSe, and VTe phases are found to be excellent half-metallic ferromagnets with large half-metallic gaps (up to 0.88 eV). They are mechanically stable and approximately 0.31-0.53 eV per formula unit higher in total energy than the corresponding nickel-arsenide ground-state phases, and therefore would be grown epitaxially in the form of films and layers thick enough for spintronic applications.
description: 4 pages with 4 figures included
Hypostomus krishnamurtii Zawadzki, Penido & Lucinda 2020
Creators: name: De Oliveira, Rianne C.
name: Ota, Renata R.
name: Deprá, Gabriel C.
name: Zawadzki, Cláudio H.
name: Pavanelli, Carla S.
name: Da Graça, Weferson J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Siluriformes
Loricariidae
Hypostomus
Hypostomus krishnamurtii

description: Hypostomus krishnamurtii Zawadzki, Penido & Lucinda, 2020: 3, fig. 1.
Holotype (Fig. 9): NUP 9259, 146.7 mm SL, rio Uru, tributary of rio das Almas, Heitoraí, Goiás, Brazil, 15°47’45”S, 49°50’18”W, D.S. Mendonça, Feb 2009.
Paratypes: 8 lots, 27 specimens —NUP 16914, 1, 109.3 mm SL: Brazil, Tocantins, São Salvador do Tocantins, channel of rio Tocantins, 12°44’37”S, 48°14’08”W, Limnobios staff, 15 Jan 2010. NUP 16919, 5, 55.2–119.4 mm SL: Brazil, Goiás, Minaçu, rio Mocambão, tributary of rio Tocantins, 13°11’38”S, 48°15’00”W, Limnobios staff, 1 Aug 2008; NUP 16920, 1, 106.5 mm SL: same locality and collector as previous, Aug 2011. NUP 19180, 1, 110.1 mm SL: Brazil, Goiás, Minaçu, rio Cana-Brava, tributary of rio Tocantins, 13°15’04”S, 48°12’16”W, J.D. Latini, Feb 2010. NUP 19150, 1, 86.8 mm SL: Brazil, Goiás, Formosa, unknown stream name, tributary of rio Cana-Brava, rio Tocantins basin, 15°09’29”S, 47°02’04”W, P. R. L. Silva, 1 Aug 2016. NUP 19149, 2, 88.5–97.3 mm SL: Brazil, Goiás, Padre Bernardo, unknown stream name, tributary of rio Maranhão, rio Tocantins basin, 15°10’09”S, 48°07’19”W, P. R. L. Silva, 1 Aug 2016. NUP 21261, 13, 55.8–108.6 mm SL: Brazil, Goiás, São Gabriel de Goiás, ribeirão Cocal, tributary of rio Arraial Velho, 15°11’20”S, 47°45’28”W, C. H. Zawadzki, I.S. Penido, T. C. Pessali, G. Nardi, 19 Mar 2019. NUP 9254, 3, 121.7– 162.1 mm SL: Brazil, Goiás, Heitoraí, rio Uru, tributary of rio das Almas, 15°47’45”S, 49°50’18”W, D.S. Mendonça, Feb 2009.
Remarks: The number of specimens from the lot NUP 21261 was incorrectly cited as 19 in the original description; however, the actual number is 13 as six specimens were donated to other ichthyological collections: ANSP 207306 (2 specimens), MNRJ 51842 (2 specimens), and UNT 21017 (2 specimens).
description: Published as part of De Oliveira, Rianne C., Ota, Renata R., Deprá, Gabriel C., Zawadzki, Cláudio H., Pavanelli, Carla S. & Da Graça, Weferson J., 2022, Catalog of type specimens of the fish collection of the Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (NUP), Universidade Estadual de Maringá Paraná, Brazil, pp. 1-43 in Zootaxa 5128 (1) on pages 24-25, DOI: 10.11646/zootaxa.5128.1.1, http://zenodo.org/record/6479497
Edge rings of bipartite graphs with linear resolutions
Creators: name: Tsuchiya, Akiyoshi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E40, 13H10, 52B20

description: Ohsugi and Hibi characterized the edge ring of a finite connected simple graph with a $2$-linear resolution. On the other hand, Hibi, Matsuda and the author conjectured that the edge ring of a finite connected simple graph with a $q$-linear resolution, where $q \geq 3$, is a hypersurface and proved the case $q=3$. In the present paper, we solve this conjecture for the case of finite connected simple bipartite graphs.
description: 8 pages. arXiv admin note: text overlap with arXiv:1712.03504
Multi-site H-bridge breathers in a DNA--shaped double strand
Creators: name: Hennig, D.
name: Archilla, J. F. R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Condensed Matter (cond-mat)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We investigate the formation process of nonlinear vibrational modes representing broad H-bridge multi--site breathers in a DNA--shaped double strand. Within a network model of the double helix we take individual motions of the bases within the base pair plane into account. The resulting H-bridge deformations may be asymmetric with respect to the helix axis. Furthermore the covalent bonds may be deformed distinctly in the two backbone strands. Unlike other authors that add different extra terms we limit the interaction to the hydrogen bonds within each base pair and the covalent bonds along each strand. In this way we intend to make apparent the effect of the characteristic helicoidal structure of DNA. We study the energy exchange processes related with the relaxation dynamics from a non-equilibrium conformation. It is demonstrated that the twist-opening relaxation dynamics of a radially distorted double helix attains an equilibrium regime characterized by a multi-site H-bridge breather.
description: 27 pages and 10 figures
title: Global state of the art of teaching life cycle assessment in higher education
Creators: name: Viere, Tobias
name: Lehmann, Joshua
name: Miao, Zoe Chunyu
name: Harding, Kevin
name: Strothmann, Philip
name: Weyand, Steffi
name: Wright, Laurie
name: Chitaka, Takunda Y.
name: Sonnemann, Guido
Publisher: name: Springer
Year: 2025

description: Purpose: Globally, there is an increased demand for education on life cycle assessment (LCA). In response, there has been an increase in course availability, but also a lack of clarity on the comprehensiveness of these offerings and the resulting student competencies.

Methods: A global survey was conducted to obtain empirical evidence on teaching LCA. The survey explored the availability of LCA courses globally and the depth of the teaching, including expected core competencies and related teaching and learning workloads. A purposive sampling strategy was adopted wherein eligible participants were approached by the researchers.

Results and discussion: According to the survey, annually, over 10,000 students participate in more than 200 LCA courses. The results reflected the interdisciplinary nature of LCA with courses being taught across different disciplines, including engineering, chemical sciences, and economics. Estimated workload demands for achieving different competency levels were significantly lower than those estimated by an expert panel before. This may be attributed in part to respondents not accounting for the full workload beyond classroom interactions. Nonetheless, workload demands increased with competency levels.

Conclusions and recommendations: The results emphasize the need for a common understanding of LCA teaching with regard to content, literacy levels, and competencies to avoid false expectations of the labor and research markets in terms of available expertise. Therefore, LCA curriculum development and program planning remain significant challenges and essential tasks for the global LCA community.
Analysis of spiral structure in the accretion disc of the novalike Cataclysmic Variable EC21178--5417
Creators: name: Ruiz-Carmona, R.
name: Khangale, Z. N.
name: Woudt, P. A.
name: Groot, P. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an extensive Doppler tomography study of the eclipsing novalike EC21178--5417, which exhibits the classic accretion disc signature in the form of double-peak emission lines in its spectrum. Doppler tomograms confirm the presence of a strong, two-armed spiral pattern visible in the majority of the spectral lines studied. This makes EC21178--5417 one of the very few novalikes that show spiral structure in their discs. We also report night-to-night changes in the position and relative strength of the spiral arms, revealing fluctuations on the conditions in the accretion disc.
description: 13 pages, 8 figures
Updation of Topographic Features using Landsat-7 Images
Creators: name: Gurveek Singh Maan
Publisher: name: figshare
Year: 2019
Subjects: Geography

description: Updations of topographic features in a map were mainly based on Aerial photographs and ground surveys. Since that time, huge population growth and urban development have resulted in continuously expanding infrastructure and urban settlements. In addition, environmental factors including desertification, deforestation, flooding, and erosion have dramatically changed the land use and topography of some parts of the world. Due to these huge changes Updation of these data becomes very difficult on a continuing basis. In this research it is shown that just after the lunch of LANDSAT-7 Satellite the potential source for updating topographic sheets at 1:50000 becomes a reality for all the geographers and its magnitude in terms of different entities presented on the topographical sheets are validated and cross verified the same features through LANDSAT-7 images to attain the producer accuracy. 
Two families of Entanglement-assisted quantum MDS codes from constacyclic codes
Creators: name: Lu, Liangdong
name: Ma, Wenping
name: Guo, Luobin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Entanglement-assisted quantum error correcting codes (EAQECCs) can be derived from arbitrary classical linear codes. However, it is a very difficult task to determine the number of entangled states required. In this work, using the method of the decomposition of the defining set of constacyclic codes, we construct two families of q-ary entanglement-assisted quantum MDS (EAQMDS) codes based on classical constacyclic MDS codes by exploiting less pre-shared maximally entangled states. We show that a class of q-ary EAQMDS have minimum distance upper bound greater than q. Some of them have much larger minimum distance than the known quantum MDS (QMDS) codes of the same length. Most of these q-ary EAQMDS codes are new in the sense that their parameters are not covered by the codes available in the literature.
Cascade disruptions in asteroid clusters
Creators: name: Fatka, Petr
name: Pravec, Petr
name: Vokrouhlicky, David
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We studied asteroid clusters suggesting a possibility of at least two disruption events in their recent history (< 5 Myr). We searched for new members of known asteroid pairs and clusters and we verified their membership. We found four asteroid clusters, namely the clusters of (11842) Kap'bos, (14627) Emilkowalski, (63440) 2001 MD30 and (157123) 2004 NW5 that show at least two secondary separation events that occurred at significantly different times. We considered a possible formation mechanism for these clusters: The parent of an asteroid cluster was spun up to its critical rotation frequency, underwent a rotation fission and was slowed down by escape of the newly formed secondary/ies. Then the YORP effect spun up the primary again and it reached its critical rotation frequency and underwent another fission. We created a simple model to test whether this scenario is possible for the four clusters. We obtained a good agreement between the model and the cluster properties for the clusters of Kap'bos and (63440). For the cluster of Emilkowalski, the time needed for the primary to reach its critical frequency after the first fission event was predicted to be too long by a factor of several. We suspect, considering also its D type taxonomic classification and the existence of a dust band associated with the cluster, that the asteroid Emilkowalski may actually be a cometary nucleus. For the cluster of (157123), the final rotational frequency of the primary after the last fission event predicted by our model is in a good agreement with the observed rotation frequency of (157123). However, a separation of the older secondary is not possible in our model due to the deficiency of free energy needed for an escape of the large secondary. This could be due to an error in the H value of the secondary or the possibility that we did not find the real primary of this cluster.
Comments on the NEMA NU 4-2008 Standard on Performance Measurement of Small Animal Positron Emission Tomographs
Creators: name: Hallen, Patrick
name: Schug, David
name: Schulz, Volkmar
Publisher: name: arXiv
Year: 2019
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: The National Electrical Manufacturers Association's (NEMA) NU 4-2008 standard specifies methodology for evaluating the performance of small-animal PET scanners. The standard's goal is to enable comparison of different PET scanners over a wide range of technologies and geometries used. In this work, we discuss if the NEMA standard meets these goals and we point out potential flaws and improvements to the standard. For the evaluation of spatial resolution, the NEMA standard mandates the use of filtered backprojection reconstruction. This reconstruction method can introduce star-like artifacts for detectors with an anisotropic spatial resolution, usually caused by parallax error. These artifacts can then cause a strong dependence of the resulting spatial resolution on the size of the projection window in image space, whose size is not fully specified in the NEMA standard. We show that the standard's equations for the estimation of the random rate for PET systems with intrinsic radioactivity are circular and not satisfiable. We compare random rates determined by a method based on the standard to to random rates obtained using a delayed coincidence window and two methods based on the singles rates. We discuss to what extend the NEMA standard's protocol for the evaluation of the sensitivity is unclear and ambiguous, which can lead to unclear interpretations of publicizeded results. The standard's definition of the recovery coefficients in the image quality phantom includes the maximum activity in a region of interest, which causes a positive correlation of noise and recovery coefficients. This leads to an unintended trade-off between desired uniformity, which is negatively correlated with variance (i.e. noise), and recovery. With this work, we want to start a discussion on possible improvements in a next version of the NEMA NU-4 standard.
Additional file 7 of Phytohormone and integrated mRNA and miRNA transcriptome analyses and differentiation of male between hermaphroditic floral buds of andromonoecious Diospyros kaki Thunb
Creators: name: Li, Huawei
name: Wang, Liyuan
name: Mai, Yini
name: Han, Weijuan
name: Suo, Yujing
name: Diao, Songfeng
name: Sun, Peng
name: Fu, Jianmin
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 7: Table S6.
Theory of Current-Driven Domain Wall Motion: A Poorman's Approach
Creators: name: Tatara, Gen
name: Kohno, Hiroshi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A self-contained theory of the domain wall dynamics in ferromagnets under finite electric current is presented. The current is shown to have two effects; one is momentum transfer, which is proportional to the charge current and wall resistivity ($\rhow$), and the other is spin transfer, proportional to spin current. For thick walls, as in metallic wires, the latter dominates and the threshold current for wall motion is determined by the hard-axis magnetic anisotropy, except for the case of very strong pinning. For thin walls, as in nanocontacts and magnetic semiconductors, the momentum-transfer effect dominates, and the threshold current is proportional to $\Vz/\rhow$, $\Vz$ being the pinning potential.
Hydrodynamic reductions of the heavenly equation
Creators: name: Ferapontov, E. V.
name: Pavlov, M. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We demonstrate that Plebański's first heavenly equation decouples in infinitely many ways into a triple of commuting (1+1)-dimensional systems of hydrodynamic type which satisfy the Egorov property. Solving these systems by the generalized hodograph method, one can construct exact solutions of the heavenly equation parametrized by arbitrary functions of a single variable. We discuss explicit examples of hydrodynamic reductions associated with the equations of one-dimensional nonlinear elasticity, linearly degenerate systems and the equations of associativity.
description: 14 pages
Understanding the Why of College Student Food Insecurity
Creators: name: Zigmont, Victoria A
name: Linsmeier, Abigail M.
name: Gallup, Peggy
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: This study sought to understand why college students are food insecure and what the impact is on their academics. A generic qualitative study design was utilized that consisted of written surveys and semi-structured interviews. Participants (n = 19) self-identified as food insecure based upon their answers to the 6-item Short Form Food Security Survey Module. Two researchers independently coded the data for themes and patterns. Risk factors for food insecurity included finances, time, and lack of resources/skills to provide for healthy eating. Time and money put commuter students at risk for food insecurity. While students within this convenience sample reported negative impacts on their academic achievement from food insecurity, their coping mechanisms prioritized cost and convenience over food quality, possibly exacerbating their situation. College food insecurity is a complex issue and raw measurements may not paint a complete picture. Conflicting priorities in addition to income and time pressures mean that interventions should be tailored from current approaches. Colleges may need to find unique ways to ensure food security for at risk students within financial aid packages and/or university programs to ensure student success.
Electric field-controlled water permeation coupled to ion transport through a nanopore
Creators: name: Dzubiella, J.
name: Allen, R. J.
name: Hansen, J. -P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report Molecular Dynamics (MD) simulations of a generic hydrophobic nanopore connecting two reservoirs which are initially at different Na+ concentrations, as in a biological cell. The nanopore is impermeable to water under equilibrium conditions, but the strong electric field caused by the ionic concentration gradient drives water molecules in. The density and structure of water in the pore are highly field dependent. In a typical simulation run, we observe a succession of cation passages through the pore, characterized by approximately bulk mobility. These ion passages reduce the electric field, until the pore empties of water and closes to further ion transport, thus providing a possible mechanism for biological ion channel gating.
description: 4 pages, 4 figures
A weakly non-adiabatic one-zone model of stellar pulsations: application to Mira stars
Creators: name: Munteanu, Andreea
name: Garcia-Berro, Enrique
name: Jose, Jordi
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: There is growing observational evidence that the irregular changes in the light curves of certain variable stars might be due to deterministic chaos. Supporting these conclusions, several simple models of non-linear oscillators have been shown to be capable of reproducing the observed complex behaviour. In this work, we introduce a non-linear, non-adiabatic one-zone model intended to reveal the factors leading to irregular luminosity variations in some pulsating stars. We have studied and characterized the dynamical behaviour of the oscillator as the input parameters are varied. The parametric study implied values corresponding to stellar models in the family of Long Period Variables and in particular of Mira-type stars. We draw the attention on certain solutions that reproduce with reasonable accuracy the observed behaviour of some peculiar Mira variables.
description: 8 pages, 6 figures; accepted for publication in MNRAS
The Hubble Legacy Field GOODS-S Photometric Catalog
Creators: name: Whitaker, Katherine E.
name: Ashas, Mohammad
name: Illingworth, Garth
name: Magee, Daniel
name: Leja, Joel
name: Oesch, Pascal
name: van Dokkum, Pieter
name: Mowla, Lamiya
name: Bouwens, Rychard
name: Franx, Marijn
name: Holden, Bradford
name: Labbé, Ivo
name: Rafelski, Marc
name: Teplitz, Harry
name: Gonzalez, Valentino
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This manuscript describes the public release of the Hubble Legacy Fields (HLF) project photometric catalog for the extended GOODS-South region from the Hubble Space Telescope (HST) archival program AR-13252. The analysis is based on the version 2.0 HLF data release that now includes all ultraviolet (UV) imaging, combining three major UV surveys. The HLF data combines over a decade worth of 7475 exposures taken in 2635 orbits totaling 6.3 Msec with the HST Advanced Camera for Surveys Wide Field Channel (ACS/WFC) and the Wide Field Camera 3 (WFC3) UVIS/IR Channels in the greater GOODS-S extragalactic field, covering all major observational efforts (e.g., GOODS, GEMS, CANDELS, ERS, UVUDF and many other programs; see Illingworth et al 2019, in prep). The HLF GOODS-S catalogs include photometry in 13 bandpasses from the UV (WFC3/UVIS F225W, F275W and F336W filters), optical (ACS/WFC F435W, F606W, F775W, F814W and F850LP filters), to near-infrared (WFC3/IR F098M, F105W, F125W, F140W and F160W filters). Such a data set makes it possible to construct the spectral energy distributions (SEDs) of objects over a wide wavelength range from high resolution mosaics that are largely contiguous. Here, we describe a photometric analysis of 186,474 objects in the HST imaging at wavelengths 0.2--1.6$μ$m. We detect objects from an ultra-deep image combining the PSF-homogenized and noise-equalized F850LP, F125W, F140W and F160W images, including Gaia astrometric corrections. SEDs were determined by carefully taking the effects of the point-spread function in each observation into account. All of the data presented herein are available through the HLF website (https://archive.stsci.edu/prepds/hlf/).
description: Hubble Legacy Fields GOODS-S public data release available at https://archive.stsci.edu/prepds/hlf/. Accepted for publication in ApJS (20 pages, 22 figures, 2 tables)
Highly Clustered Complex Networks in the Configuration Model: Random Regular Small-World Network
Creators: name: Jeong, Wonhee
name: Jang, Hoseung
name: Yu, Unjong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We propose a method to make a highly clustered complex network within the configuration model. Using this method, we generated highly clustered random regular networks and analyzed the properties of them. We show that highly clustered random regular networks with appropriate parameters satisfy all the conditions of the small-world network: connectedness, high clustering coefficient, and small-world effect. We also study how clustering affects the percolation threshold in random regular networks. In addition, the prisoner's dilemma game is studied and the effects of clustering and degree heterogeneity on the cooperation level are discussed.
description: 6 pages, 5 figures
Data Management Plan and Section templates for the Faculty of Applied Sciences, TU Delft University, the Netherlands
Creators: name: Plomp, Esther
Publisher: name: Zenodo
Year: 2024
Subjects: DMP
FAIR
Horizon Europe
NWO
ZonMw
RDM
Open Science
Open Data
Data Management Plan

description: These templates were used by the Faculty's Data Steward (Esther Plomp, 2018-2024) to provide researchers with guidance and example answers to the questions in Data Management Plans and sections for their proposals. This includes templates for the most relevant funders (Horizon Europe/European Commission, NWO/Dutch Research Council and ZonMw). The anwers are particularly applicable for researchers from the Faculty of Applied Sciences, and some of the guidance may not be relevant out of the TU Delft or Dutch context. 

For guidance at the proposal stage for Horizon Europe proposals, please also see: https://gitlab.tudelft.nl/tud-data-stewards/horizon-europe-guidance/-/wikis/home
First-principles investigation of low-dimension MSe$_2$ (M = Ti, Hf, Zr) configurations as promising thermoelectric materials
Creators: name: Tseng, Jonathan
name: Luo, Xuan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Interest in the application of thermoelectric devices for renewable energy has risen over the past decade. In this paper, we calculate the transport properties of various configurations of the transition metal dichalcogenide (TMD) MSe$_2$ (M = Hf, Zr, Ti) in search of promising thermoelectric materials at low/high temperatures. We explore the properties of the pure monolayer at discrete levels of biaxial tensile strain (epsilon = 0%, 2%, 4%, 8%), as well as those of the van der Waals heterobilayers MSe$_2$/MSe$_2$ using first-principles calculations combined with semi-classical Boltzmann transport theory. It is found that all studied monolayers exhibit high thermoelectric performance at high temperatures, while the application of strain enhances Seebeck and thermopower non-linearly at low temperatures. The results also reveal the bilayer ZrSe$_2$/TiSe$_2$ to have remarkable thermopower at low temperatures. These findings offer insight into creating applications with enhanced performance at both low and high temperatures in future thermoelectric devices.
description: 17 pages, 10 figures, 7 tables
Analytic Solutions to Compact Binary Inspirals With Leading Order Spin-Orbit Contribution Using The Dynamical Renormalization Group
Creators: name: Yang, Zixin
name: Leibovich, Adam K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the real-space trajectory and spin precession of a generic spinning compact binary inspiral at any time instant using the dynamical renormalization group formalism. This method leads to closed-form analytic solutions to the binary motion through treating radiation reaction as perturbations and resumming the secular growth of perturbative terms. We consider the spin-orbit effects at leading order and the 2.5PN radiation reaction without orbit averaging or precession averaging for arbitrary individual masses and spin magnitudes and orientations. The solutions are written in a moving reference frame, with the orbital angular momentum and binary radial directions aligned along two of the axes. The resummed solutions show improved accuracy compared to adiabatic solutions while also being an order of magnitude faster computationally compared to numerical integration methods.
description: 23 pages, 4 figures
Time-reversal of an unknown quantum state
Creators: name: Lebedev, A. V.
name: Vinokur, V. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For decades, researchers have sought to understand how the irreversibility of the surrounding world emerges from the seemingly time symmetric, fundamental laws of physics. Quantum mechanics conjectured a clue that final irreversibility is set by the measurement procedure and that the time reversal requires complex conjugation of the wave function, which is overly complex to spontaneously appear in nature. Building on this Landau-Wigner conjecture, it became possible to demonstrate that time reversal is exponentially improbable in a virgin nature and to design an algorithm artificially reversing a time arrow for a given quantum state on the IBM quantum computer. However, the implemented arrow-of-time reversal embraced only the known states initially disentangled from the thermodynamic reservoir. Here we develop a procedure for reversing the temporal evolution of an arbitrary unknown quantum state. This opens the route for general universal algorithms sending temporal evolution of an arbitrary system backwards in time.
description: 5 pages
Nonlinear dynamics of dimers on periodic substrates
Creators: name: Fusco, C.
name: Fasolino, A.
name: Janssen, T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the dynamics of a dimer moving on a periodic one-dimensional substrate as a function of the initial kinetic energy at zero temperature. The aim is to describe, in a simplified picture, the microscopic dynamics of diatomic molecules on periodic surfaces, which is of importance for thin film formation and crystal growth. We find a complex behaviour, characterized by a variety of dynamical regimes, namely oscillatory, ``quasi-diffusive'' (chaotic) and drift motion. Parametrically resonant excitations of internal vibrations can be induced both by oscillatory and drift motion of the centre of mass. For weakly bound dimers a chaotic regime is found for a whole range of velocities between two non-chaotic phases at low and high kinetic energy. The chaotic features have been monitored by studying the Lyapunov exponents and the power spectra. Moreover, for a short-range interaction, the dimer can dissociate due to the parametric excitation of the internal motion.
description: 9 pages, 13 figures, to be published in Eur. Phys. J. B
Additional file 1 of Sleep duration, vegetable consumption and all-cause mortality among older adults in China: a 6-year prospective study
Creators: name: Bai, Chen
name: Guo, Muqi
name: Yao, Yao
name: Ji, John S.
name: Gu, Danan
name: Zeng, Yi
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Mental Health

description: Additional file 1.