cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Discovery of Spectral Variability of Markarian 421 at TeV Energies
Creators: name: Krennrich, F.
name: Bond, I. H.
name: Bradbury, S. M.
name: Buckley, J. H.
name: Carter-Lewis, D. A.
name: Cui, W.
name: Perez, I. de la Calle
name: Fegan, D. J.
name: Fegan, S. J.
name: Finley, J. P.
name: Gaidos, J. A.
name: Gibbs, K.
name: Gillanders, G. H.
name: Hall, T. A.
name: Hillas, A. M.
name: Holder, J.
name: Horan, D.
name: Jordan, M.
name: Kertzman, M.
name: Kieda, D.
name: Kildea, J.
name: Knapp, J.
name: Kosack, K.
name: Lang, M. J.
name: LeBohec, S.
name: Moriarty, P.
name: Müller, D.
name: Ong, R. A.
name: Pallassini, R.
name: Petry, D.
name: Quinn, J.
name: Reay, N. W.
name: Reynolds, P. T.
name: Rose, H. J.
name: Sembroski, G. H.
name: Sidwell, R.
name: Stanton, N.
name: Swordy, S. P.
name: Vassiliev, V. V.
name: Wakely, S. P.
name: Weekes, T. C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The detection of spectral variability of the gamma-ray blazar Mrk 421 at TeV energies is reported. Observations with the Whipple Observatory 10m gamma-ray telescope taken in 2000/2001 revealed exceptionally strong and long-lasting flaring activity. Flaring levels of 0.4 to 13 times that of the Crab Nebula flux provided sufficient statistics for a detailed study of the energy spectrum between 380 GeV and 8.2 TeV as a function of flux level. These spectra are well described by a power law with an exponential cutoff. There is no evidence for variation in the cutoff energy with flux, and all spectra are consistent with an average value for the cutoff energy of 4.3 TeV. The spectral index varies between 1.89 in a high flux state and 2.72 in a low state. The correlation between spectral index and flux is tight when averaging over the total 2000/2001 data set. Spectral measurements of Mrk~421 from previous years (1995/96 and 1999) by the Whipple collaboration are consistent with this flux-spectral index correlation, which suggest that this may be a constant or a long-term property of the source. If a similar flux-spectral index correlation were found for other gamma-ray blazars, this universal property could help disentangle the intrinsic emission mechanism from external absorption effects.
description: 24 pages, 3 figures, submitted May 20 2002, accepted for publication in the Astrophysical Journal Letters
title: Immatrikulationsordnung der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Immatrikulationsamt
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1223
Chinese Canadian stories : uncommon histories from a common past
Creators: name: Fong, Denise
Publisher: name: The University of British Columbia
Year: 2011

description: This session took place on October 26, 2011 in the Lillooet Room of the Irving K. Barber Learning Centre at the University of British Columbia. This presentation can be found at 27:58 – 01:05:43 in the recording.
Additional file 2: of Silk fibroin scaffolds seeded with Wharton’s jelly mesenchymal stem cells enhance re-epithelialization and reduce formation of scar tissue after cutaneous wound healing
Creators: name: Millán-Rivero, José
name: Martínez, Carlos
name: Romecín, Paola
name: Aznar-Cervantes, Salvador
name: Carpes-Ruiz, Marina
name: Cenis, José
name: Moraleda, Jose
name: Atucha, Noemí
name: García-Bernal, David
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology

description: Figure S1. SEM micrographs (A), histogram of fiber diameters (B), and examples of stress-elongation curves (C) of electrospun silk fibroin mats produced with 19% regenerated silk fibroin solutions. (PDF 77 kb)
Static Analysis Deployment Pitfalls
Creators: name: Sheridan, Flash
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.2.5; D.2.4
subject: 68U99

description: Organizational, political, and configuration mistakes in the deployment of a static source code analysis tool within a software development organization can result in most of the value of the tool being lost, even while apparently meeting management goals. A list of pitfalls encountered as a static analysis consultant is presented, with discussion of techniques for avoiding or mitigating them. This is part of a work in progress, tentatively entitled "Handbook of Static Analysis Deployment."
Optical Tellegen metamaterial with spontaneous magnetization
Creators: name: Jazi, S. S.
name: Faniayeu, I.
name: Cichelero, R.
name: Tzarouchis, D. C.
name: Asgari, M. M.
name: Dmitriev, A.
name: Fan, S.
name: Asadchy, V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The nonreciprocal magnetoelectric effect, also known as the Tellegen effect, promises a number of groundbreaking phenomena connected to fundamental (e.g., electrodynamics of axion and relativistic matter) and applied physics (e.g., magnetless isolators). We propose a three-dimensional metamaterial with an isotropic and resonant Tellegen response in the visible frequency range. The metamaterial is formed by randomly oriented bi-material nanocylinders in a host medium. Each nanocylinder consists of a ferromagnet in a single-domain magnetic state and a high-permittivity dielectric operating near the magnetic Mie-type resonance. The proposed metamaterial requires no external magnetic bias and operates on the spontaneous magnetization of the nanocylinders. By leveraging the emerging magnetic Weyl semimetals, we further show how a giant bulk effective magnetoelectric effect can be achieved in a proposed metamaterial, exceeding that of natural materials by almost four orders of magnitude.
description: 11 pages, 4 figures
Stellar systems in the direction of Pegasus I - I. Low surface brightness galaxies
Creators: name: González, Nélida M.
name: Castelli, Analía V. Smith
name: Faifer, Favio R.
name: Escudero, Carlos G.
name: Cellone, Sergio A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To enlarge the sample of known low-surface brightness (LSB) galaxies and to try to provide clues about their nature, we report the detection of eight of this type of objects ($μ_{{eff}, g'} \simeq 27$ mag arcsec$^{-2}$) towards the group of galaxies Pegasus I. They are located in the very center of Pegasus I, close to the dominant elliptical galaxies NGC7619 and NGC7626. Assuming that these galaxies are at the distance of Pegasus I, we have found that their sizes are intermediate among similar objects reported in the literature. In particular, we found that three of these galaxies can be classified as ultra-diffuse galaxies and a fourth one displays a nucleus. The eight new LSB galaxies show a significant color dispersion around the extrapolation towards faint luminosities of the color-magnitude relation defined by typical early-type galaxies. In addition, they display values of the Sérsic index below 1, in agreement with values obtained for LSB galaxies in other environments. We also show that there seems to be a bias effect in the size distributions of the detected LSBs in different environments, in the sense that more distant groups/clusters lack small $r_{eff}$ objects, while large systems are not found in the Local Group and nearby environments. While there may be an actual shortage of large LSB galaxies in low-density environments like the Local Group, the non-detection of small (and faint) systems at large distances is clearly a selection effect. As an example, LSB galaxies with similar sizes to those of the satellites of Andromeda in the Local Group, will be certainly missed in a visual identification at the distance of Pegasus I.
description: 15 pages, 5 figures, Accepted for publication in Astronomy & Astrophysics
title: Einstellung des internationalen Master- und Promotionsstudiengangs Chemie und des Promotionsstudiengangs Biologie mit dem Promotionsprogramm Molekülkomplexe von biomedizinischer Relevanz
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fakultät 2
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1222
Multichannel Nonlinear Equalization in Coherent WDM Systems based on Bi-directional Recurrent Neural Networks
Creators: name: Deligiannidis, Stavros
name: Bottrill, Kyle R. H.
name: Sozos, Kostas
name: Mesaritakis, Charis
name: Petropoulos, Periklis
name: Bogris, Adonis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Optics (physics.optics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Kerr nonlinearity in the form of self- and cross-phase modulation imposes a fundamental limitation to the capacity of wavelength division multiplexed (WDM) optical communication systems. Digital back-propagation (DBP), that requires solving the inverse-propagating nonlinear Schrödinger equation (NLSE), is a widely adopted technique for the mitigation of impairments induced by Kerr nonlinearity. However, multi-channel DBP is too complex to be implemented commercially in WDM systems. Recurrent neural networks (RNNs) have been recently exploited for nonlinear signal processing in the context of optical communications. In this work, we propose multi-channel equalization through a bidirectional vanilla recurrent neural network (bi-VRNN) in order to improve the performance of the single-channel bi-VRNN algorithm in the transmission of WDM M-QAM signals. We compare the proposed digital algorithm to full-field DBP and to the single channel bi-RNN in order to reveal its merits with respect to both performance and complexity. We finally provide experimental verification through a QPSK metro link, showcasing over 2.5 dB optical signal-to-noise ratio (OSNR) gain and up to 43% complexity reduction with respect to the single-channel RNN and the DBP.
description: 9 pages
3D Lowest Landau Level Theory Applied to YBCO Magnetization and Specific Heat Data: Implications for the Critical Behavior in the H-T Plane
Creators: name: Pierson, Stephen W.
name: Valls, Oriol T.
name: Tesanovic, Zlatko
name: Lindemann, Michael A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the applicability of magnetization and specific heat equations derived from a lowest-Landau-level (LLL) calculation, to the high-temperature superconducting (HTSC) materials of the YBa$_2$Cu$_3$O$_{7-δ}$ (YBCO) family. We find that significant information about these materials can be obtained from this analysis, even though the three-dimensional LLL functions are not quite as successful in describing them as the corresponding two-dimensional functions are in describing data for the more anisotropic HTSC Bi- and Tl-based materials. The results discussed include scaling fits, an alternative explanation for data claimed as evidence for a second order flux lattice melting transition, and reasons why 3DXY scaling may have less significance than previously believed. We also demonstrate how 3DXY scaling does not describe the specific heat data of YBCO samples in the critical region. Throughout the paper, the importance of checking the actual scaling functions, not merely scaling behavior, is stressed.
description: RevTeX; 10 double-columned pages with 7 figures embedded. (A total of 10 postscript files for the figures.) Submitted to Physical Review B
A possible time dependent generalization of the bipartite quantum marginal problem
Creators: name: Baio, Giuseppe
name: Chruscinski, Dariusz
name: Messina, Antonino
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work we study an inverse dynamical problem for a bipartite quantum system governed by the time local master equation: to find the class of generators which give rise to a certain time evolution with the constraint of fixed reduced states (marginals). The compatibility of such choice with a global unitary evolution is considered. For the non unitary case we propose a systematic method to reconstruct examples of master equations and address them to different physical scenarios.
description: 11 pages, 2 figures
Instantons and unitarity in quantum cosmology with fixed four-volume
Creators: name: Daughton, Alan
name: Louko, Jorma
name: Sorkin, Rafael D
Publisher: name: arXiv
Year: 1998
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We find a number of complex solutions of the Einstein equations in the so-called unimodular version of general relativity, and we interpret them as saddle points yielding estimates of a gravitational path integral over a space of almost everywhere Lorentzian metrics on a spacetime manifold with topology of the "no-boundary" type. In this setting, the compatibility of the no-boundary initial condition with the definability of the quantum measure reduces reduces to the normalizability and unitary evolution of the no-boundary wave function ψ. We consider the spacetime topologies R^4 and RP^4 # R^4 within a Taub minisuperspace model with spatial topology S^3, and the spacetime topology R^2 x T^2 within a Bianchi type I minisuperspace model with spatial topology T^3. In each case there exists exactly one complex saddle point (or combination of saddle points) that yields a wave function compatible with normalizability and unitary evolution. The existence of such saddle points tends to bear out the suggestion that the unimodular theory is less divergent than traditional Einstein gravity. In the Bianchi type I case, the distinguished complex solution is approximately real and Lorentzian at late times, and appears to describe an explosive expansion from zero size at T=0. (In the Taub cases, in contrast, the only complex solution with nearly Lorentzian late-time behavior yields a wave function that is normalizable but evolves nonunitarily, with the total probability increasing exponentially in the unimodular "time" in a manner that suggests a continuous creation of new universes at zero volume.) The issue of the stability of these results upon the inclusion of more degrees of freedom is raised.
description: 32 pages, REVTeX v3.1 with amsfonts. (v2: minor typos etc corrected.)
Additional file 1: of Close evolutionary relationship between rice black-streaked dwarf virus and southern rice black-streaked dwarf virus based on analysis of their bicistronic RNAs
Creators: name: Zenghui Wang
name: Chengming Yu
name: Yuanhao Peng
name: Chengshi Ding
name: Qingliang Li
name: Deya Wang
name: Xuefeng Yuan
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Table S1. Relative synonymous codon usage (RSCU) values for each codon in S5, S7 and S9 of RBSDV and SRBSDV. Table S2. The sequence of RBSDV and SRBSDVÂ information used in this paper. (DOCX 29 kb)
Additional file 3: of Silk fibroin scaffolds seeded with Wharton’s jelly mesenchymal stem cells enhance re-epithelialization and reduce formation of scar tissue after cutaneous wound healing
Creators: name: Millán-Rivero, José
name: Martínez, Carlos
name: Romecín, Paola
name: Aznar-Cervantes, Salvador
name: Carpes-Ruiz, Marina
name: Cenis, José
name: Moraleda, Jose
name: Atucha, Noemí
name: García-Bernal, David
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Figure S2. Viability of Wj-MSCs cultured on electrospun SF scaffolds for different times. (A) Percentages of Annexin-V−/7-AAD− cells were analyzed by flow cytometry. (B) Percentage of viable cells significantly decreased compared to values obtained at time 0 (*p
Elliptic Gromov-Witten Invariants of Del-Pezzo Surfaces
Creators: name: Chaudhuri, Chitrabhanu
name: Das, Nilkantha
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14N35, 14J45

description: We obtain a formula for the number of genus one curves with a variable complex structure of a given degree on a del-Pezzo surface that pass through an appropriate number of generic points of the surface. This is done using Getzler's relationship among cohomology classes of certain codimension 2 cycles in $\overline{M}_{1,4}$ and recursively computing the genus-one Gromov-Witten invariants of del Pezzo surfaces. Using completely different methods, this problem has been solved earlier by Bertram and Abramovich, Ravi Vakil, Dubrovin and Zhang and more recently using Tropical geometric methods by M. Shoval and E. Shustin. We also subject our formula to several low degree checks and compare them to the numbers obtained by the earlier authors.
description: 11 pages, 1 figure
Dynamics of the threshold model on hypergraphs
Creators: name: Xu, Xin-Jian
name: He, Shuang
name: Zhang, Li-Jie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The threshold model has been widely adopted as a prototype for studying contagion processes on social networks. In this paper, we consider individual interactions in groups of three or more vertices and study the threshold model on hypergraphs. To understand how high-order interactions affect the breakdown of the system, we develop a theoretical framework based on generating function technology to derive the cascade condition and the giant component of vulnerable vertices, which depend on both hyperedges and hyperdegrees. First, we find a dual role of the hyperedge in propagation: when the average hyperdegree is small, increasing the size of the hyperedges may make the system fragile, while the average hyperdegree is relatively large, the increase of the hyperedges causes the system to be robust. Then, we identify the effects of threshold, hyperdegree, and hyperedge heterogeneities. The heterogeneity of individual thresholds causes the system to be more fragile, while the heterogeneity of individual hyperdegrees or hyperedges increases the robustness of the system. Finally, we show that the higher hyperdegree a vertex has, the larger possibility and faster speed it will get activated. We verify these results by simulating meme spreading on both random hypergraph models and hypergraphs constructed from empirical data.
description: revtex
Additional file 2: of A genome-wide single nucleotide polymorphism and copy number variation analysis for number of piglets born alive
Creators: name: Nedenia Stafuzza
name: Silva, Rafael
name: Breno Fragomeni
name: Masuda, Yutaka
name: Yijian Huang
name: Gray, Kent
name: Lourenco, Daniela
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 60506 Virology

description: Gene ontology biological processes revealed by Panther analysis. (DOCX 40 kb)
Bibliometric evaluation of research performance: where do we stand?
Creators: name: Abramo, Giovanni
Publisher: name: arXiv
Year: 2018
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: This work provides a critical examination of the most popular bibliometric indicators and methodologies to assess the research performance of individuals and institutions. The aim is to raise the fog and make practitioners more aware of the inherent risks in do-it-myself practices, or cozy out-of-the-shelf solutions to the difficult question of how to evaluate research. The manuscript also proposes what we believe is the correct approach to bibliometric evaluation of research performance.
description: arXiv admin note: substantial text overlap with arXiv:1810.12830
Software engineering to sustain a high-performance computing scientific application: QMCPACK
Creators: name: Godoy, William F.
name: Hahn, Steven E.
name: Walsh, Michael M.
name: Fackler, Philip W.
name: Krogel, Jaron T.
name: Doak, Peter W.
name: Kent, Paul R. C.
name: Correa, Alfredo A.
name: Luo, Ye
name: Dewing, Mark
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We provide an overview of the software engineering efforts and their impact in QMCPACK, a production-level ab-initio Quantum Monte Carlo open-source code targeting high-performance computing (HPC) systems. Aspects included are: (i) strategic expansion of continuous integration (CI) targeting CPUs, using GitHub Actions runners, and NVIDIA and AMD GPUs in pre-exascale systems, using self-hosted hardware; (ii) incremental reduction of memory leaks using sanitizers, (iii) incorporation of Docker containers for CI and reproducibility, and (iv) refactoring efforts to improve maintainability, testing coverage, and memory lifetime management. We quantify the value of these improvements by providing metrics to illustrate the shift towards a predictive, rather than reactive, sustainable maintenance approach. Our goal, in documenting the impact of these efforts on QMCPACK, is to contribute to the body of knowledge on the importance of research software engineering (RSE) for the sustainability of community HPC codes and scientific discovery at scale.
description: Accepted at the first US-RSE Conference, USRSE2023, https://us-rse.org/usrse23/, 8 pages, 3 figures, 4 tables
Generating functions of wormholes
Creators: name: Rahaman, Farook
name: Sarkar, Susmita
name: Singh, Ksh. Newton
name: Pant, Neeraj
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is known that wormhole geometry could be found solving the Einstein field equations by tolerating the violation of null energy condition (NEC). Violation of NEC is not possible for the physical matter distributions, however, can be achieved by considering distributions of "exotic matter". The main purpose of this work is to find generating functions comprising the wormhole like geometry and discuss the nature of these generating functions. We have used the Herrera et al. \cite{1} approaches of obtaining generating functions in the background of wormhole spacetime. Here we have adopt two approaches of solving the field equations to find wormhole geometry. In the first method, we have assumed the redshift function $f(r)$ and the shape function $b(r)$ and solve for the generating functions. In an another attempt we assume generating functions and redshift functions and then try to find shape functions of the wormholes.
description: 12 pages, 12 figures. To appear in Mod.Phys.Lett.A
Geographic concentration and firm productivity
Creators: name: Mare, David
name: Timmins, Jason
name: Mare, David
name: Timmins, Jason
Publisher: name: Unknown
Year: 2006
Subjects: subject: Industrial Organization
subject: Labor and Human Capital
subject: labour productivity
subject: geographic concentration
subject: agglomeration

description: Firms operating in dense labour markets are more productive, although understanding the mechanisms behind this relationship is both challenging and contentious. This paper uses a newly assembled dataset on location and labour productivity of most New Zealand firms to examine the role of location patterns at the industry, local labour market, and industry*location levels. We derive estimates in the presence of firm, location, and period fixed effects, paying particular attention to controlling for unobserved local and industry factors. Our findings confirm that labour productivity is higher for firms in geographicallyconcentrated industries (“localisation”), for firms in more industrially-diversified labour markets (“urbanisation”), and for firms operating in larger labour markets. Controlling for heterogeneity of industries, locations, and firms, we find some support for a positive productivity effect of changes in both localisation and urbanisation, although not all estimated effects are statistically and economically significant.
Greenhouse gas emissions charges and credits on agricultural land: what can a model tell us?
Creators: name: Hendy, Joanna
name: Kerr, Suzi
name: Baisden, Troy
name: Hendy, Joanna
name: Kerr, Suzi
name: Baisden, Troy
Publisher: name: Unknown
Year: 2006
Subjects: subject: Environmental Economics and Policy
subject: climate change
subject: land use
subject: methane
subject: nitrous oxide
subject: dairy
subject: sheep
subject: beef
subject: government policy

description: Using the simulation model Land Use in Rural New Zealand version 1 - climate (LURNZv1-climate), we simulate the effects of an agricultural land-use emissions charge and a reward for native forest and scrub regeneration. Our results are preliminary and at this stage should be considered illustrative. We find that, on its own, an agricultural emissions charge based on solely on land use would be disruptive and may not be very effective in reducing emissions. In addition, we find that including an additional policy that rewards regenerating forest and scrub without a similar reward for plantation forestry might negatively impact on plantation forestry, increasing emissions growth in the short-run. We are currently developing a second version of LURNZ-climate, which will be more robust and thus lend more weight to our future results.
title: Ordnung für das Orientierungsstudium an der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Senat
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1221
Opening up worldwide access to key BC historical documents : BC historical newspapers
Creators: name: Conroy, Michael
Publisher: name: The University of British Columbia
Year: 2011

description: Vision: ...The Library's digital initiatives embrace new technology, methods of access, workflows and preservation strategies while building sustainable digital collections to support and enrich the educational, cultural and economic endeavors of the University, the People of British Columbia and communities beyond. ... Our goal is to create sustainable, world-class programs and processes to make the collections and research at UBC available to the world. This session took place on October 26, 2011 in the Lillooet Room of the Irving K. Barber Learning Centre at the University of British Columbia. This presentation can be found at 01:55 – 14:15 in the recording.
Criticonoma crassa Gozmany & Vari 1973
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Tineidae
Criticonoma
Criticonoma crassa

description: Criticonoma crassa Gozmány & Vári 1973
COMMON NAME(S): Fungus moth or Tineid moth.
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Democratic Republic of Congo, Zambia.
LOCALITY IN ZAMBIA: Mwinilunga, in Northwestern Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: De Prins & De Prins 2022; Gozmány & Vári 1973.
description: Published as part of Mbata, Keith J. & Prins, Jurate De, 2023, Annotated checklist of moths of Zambia (Insecta: Lepidoptera), pp. 1-503 in Zootaxa 5354 (1) on page 25, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
Saturating automata for game semantics
Creators: name: Dixon, Alex
name: Murawski, Andrzej S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Programming Languages (cs.PL)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: Saturation is a fundamental game-semantic property satisfied by strategies that interpret higher-order concurrent programs. It states that the strategy must be closed under certain rearrangements of moves, and corresponds to the intuition that program moves (P-moves) may depend only on moves made by the environment (O-moves).
 We propose an automata model over an infinite alphabet, called saturating automata, for which all accepted languages are guaranteed to satisfy a closure property mimicking saturation.
 We show how to translate the finitary fragment of Idealized Concurrent Algol (FICA) into saturating automata, confirming their suitability for modelling higher-order concurrency. Moreover, we find that, for terms in normal form, the resultant automaton has linearly many transitions and states with respect to term size, and can be constructed in polynomial time. This is in contrast to earlier attempts at finding automata-theoretic models of FICA, which did not guarantee saturation and involved an exponential blow-up during translation, even for normal forms.
description: Presented at MFPS 2023
Revisiting the scientometric conceptualization of impact and its measurement
Creators: name: Abramo, Giovanni
Publisher: name: arXiv
Year: 2018
Subjects: subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: The development of scientometric indicators and methods for evaluative purposes, requires a multitude of assumptions, conventions, limitations, and caveats. Given this, we cannot permit ambiguities in the key concepts forming the basis of scientometric science itself, or research assessment exercises would rest on quicksand. This conceptual work attempts to spell out some principles leading to a clear definition of "impact" of research, and above all, of the appropriate scientometric indicator to measure it. The aim is to stimulate a discussion aimed at a definitive convergence on the meaning and measurement of a fundamental concept of the scientometric science.
title: Geschäftsordnung der Forschungsschwerpunkte der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Geschäftsstelle des Präsidiums
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1220
The VISCACHA survey - I. Overview and First Results
Creators: name: Maia, Francisco F. S.
name: Dias, Bruno
name: Santos, João F. C.
name: Kerber, Leandro de O.
name: Bica, Eduardo
name: Piatti, Andrés E.
name: Barbuy, Beatriz
name: Quint, Bruno
name: Fraga, Luciano
name: Sanmartim, David
name: Angelo, Mateus S.
name: Hernandez-Jimenez, Jose A.
name: Santrich, Orlando J. Katime
name: Oliveira, Raphael A. P.
name: Pérez-Villegas, Angeles
name: Souza, Stefano O.
name: Vieira, Rodrigo G.
name: Westera, Pieter
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The VISCACHA (VIsible Soar photometry of star Clusters in tApii and Coxi HuguA) Survey is an ongoing project based on deep photometric observations of Magellanic Cloud star clusters, collected using the SOuthern Astrophysical Research (SOAR) telescope together with the SOAR Adaptive Module Imager. Since 2015 more than 200 hours of telescope time were used to observe about 130 stellar clusters, most of them with low mass (M < 10$^4$ M$_\odot$) and/or located in the outermost regions of the Large Magellanic Cloud and the Small Magellanic Cloud. With this high quality data set, we homogeneously determine physical properties from statistical analysis of colour-magnitude diagrams, radial density profiles, luminosity functions and mass functions. Ages, metallicities, reddening, distances, present-day masses, mass function slopes and structural parameters for these clusters are derived and used as a proxy to investigate the interplay between the environment in the Magellanic Clouds and the evolution of such systems. In this first paper we present the VISCACHA Survey and its initial results, concerning the SMC clusters AM3, K37, HW20 and NGC796 and the LMC ones KMHK228, OHSC3, SL576, SL61 and SL897, chosen to compose a representative subset of our cluster sample. The project's long term goals and legacy to the community are also addressed.
description: 21 pages, 21 figures
Tsunami Risk Assessment and Mapping for Fort Liberté, Haiti
Creators: name: Sauveur
Publisher: name: Zenodo
Year: 2017

description: The natural disasters that have struck the country over the past decade have exposed its vulnerability. Haiti's geographical position and geodynamic context make it highly susceptible to seismic and tsunami threats, particularly along the northern coast. Historical data indicate significant wave heights and document tragic flood events, notably in Port-de-Paix, Cap-Haïtien (where more than 300 people lost their lives due to a tsunami), and Fort-Liberté following the May 7, 1842 earthquake. Assessing this threat is essential, and informing the population is a priority to facilitate decision-making and disaster management by the relevant authorities.

This study builds on previous efforts in Cap-Haïtien and Port-de-Paix to develop tsunami evacuation maps for these cities. The objective was to conduct a pilot study on the city of Fort-Liberté. This study resulted in the creation of an evacuation map, which served as a decision-making tool during the full-scale tsunami simulation exercise conducted in Fort-Liberté on March 23, 2017.
Recurrence quantification analysis as a post-processing technique in adaptive optics high-contrast imaging
Creators: name: Stangalini, M.
name: Causi, G. Li
name: Pedichini, F.
name: Antoniucci, S.
name: Mattioli, M.
name: Christou, J.
name: Consolini, G.
name: Hope, D.
name: Jefferies, S. M.
name: Piazzesi, R.
name: Testa, V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this work we explore the possibility of using Recurrence Quantification Analysis (RQA) in astronomical high-contrast imaging to statistically discriminate the signal of faint objects from speckle noise. To this end, we tested RQA on a sequence of high frame rate (1 kHz) images acquired with the SHARK-VIS forerunner at the Large Binocular Telescope. Our tests show promising results in terms of detection contrasts at angular separations as small as $50$ mas, especially when RQA is applied to a very short sequence of data ($2$ s). These results are discussed in light of possible science applications and with respect to other techniques like, for example, Angular Differential Imaging and Speckle-Free Imaging.
description: 12 pages, 9 figures, Accepted for publication in ApJ
Berry phase of spin-one system in a rotating electric field
Creators: name: Alizzi, Abdaljalel
name: Silagadze, Zurab K.
name: Uskov, Artem
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider in sufficient detail how the Berry phase arises in a rotating electric field in a model system with spin one. The goal is to help the student who first encountered this interesting problem, which is fraught with some subtleties that require attention in order not to go astray.
description: 11 pages, no figures, published version
title: Geschäftsordnung des Präsidiums der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Präsidium
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1219
Extracting Secrets from Encrypted Virtual Machines
Creators: name: Morbitzer, Mathias
name: Huber, Manuel
name: Horsch, Julian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: AMD SEV is a hardware extension for main memory encryption on multi-tenant systems. SEV uses an on-chip coprocessor, the AMD Secure Processor, to transparently encrypt virtual machine memory with individual, ephemeral keys never leaving the coprocessor. The goal is to protect the confidentiality of the tenants' memory from a malicious or compromised hypervisor and from memory attacks, for instance via cold boot or DMA. The SEVered attack has shown that it is nevertheless possible for a hypervisor to extract memory in plaintext from SEV-encrypted virtual machines without access to their encryption keys. However, the encryption impedes traditional virtual machine introspection techniques from locating secrets in memory prior to extraction. This can require the extraction of large amounts of memory to retrieve specific secrets and thus result in a time-consuming, obvious attack. We present an approach that allows a malicious hypervisor quick identification and theft of secrets, such as TLS, SSH or FDE keys, from encrypted virtual machines on current SEV hardware. We first observe activities of a virtual machine from within the hypervisor in order to infer the memory regions most likely to contain the secrets. Then, we systematically extract those memory regions and analyze their contents on-the-fly. This allows for the efficient retrieval of targeted secrets, strongly increasing the chances of a fast, robust and stealthy theft.
description: Accepted for publication at CODASPY 2019
GEOSPATIAL DISTRIBUTION OF HEAVY METALS IN COCOA PLANTATIONS ACROSS NIGERIA
Creators: name: Aikpokpodion, P.E.
name: Ogunlade, M.O.
name: Aikpokpodion, P.O.
name: Adebola, P.O.
Publisher: name: Zenodo
Year: 2023

description: ABSTRACT
Black pod disease is the main limiting factor confronting cocoa cultivation in Nigeria. Copper-based fungicide is used annually to control the disease. Accumulation of copper in soil can increase the level of Cu residue in cocoa beans and soil contamination. Soil samples under cocoa plantations were collected from 128 cocoa producing local government areas of the ten states that account for 99% of total cocoa bean output in Nigeria. The samples were analyzed for Cu, Pb and Cd. Result showed that, copper was detected in all (100%) the cocoa plantations while only 1.81% and 5.43% had traceable Pb and Cd residues respectively. Correlation analysis showed that, annual rainfall and volume of cocoa output were the main factors that influence the amount of copper in cocoa plantations. Of the five regions where cocoa is cultivated in Nigeria, Pb was only detected in the Southwest and Southsouth regions while Cd was only detected in the South west region. Application of Cu-based fungicides in the control of black pod disease is the main cause of elevated values of copper residues in cocoa plantation. The presence of Pb and Cd in Nigerian cocoa soils is mainly pedogenic rather than anthropogenic. The levels of Cu, Pb and Cd in cocoa plantations in Nigeria still fall within the safe and acceptable limits.
Keywords: Cocoa, heavy metals, copper residue, Lead, Cadmium
Partial-dual genus polynomial as a weight system
Creators: name: Chmutov, Sergei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C10, 05C65, 57M15, 57Q15

description: We prove that the partial-dual genus polynomial considered as a function on chord diagrams satisfies the four-term relation. Thus it is a weight system from the theory of Vassiliev knot invariants.
description: Final version for publication in Communications in Mathematics
title: Neufassung der Beitragsordnung der Studierendenschaft der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Studierendenparlament
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1218
title: Richtlinie zum Schutz vor sexueller Belästigung, sexueller Diskriminierung und sexueller Gewalt an der TU Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Gleichstellungsbeauftragte
Year: 2018
Subjects: subject: Richtlinie
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1217
title:  Predictions of Knee Joint Contact Forces Using Only Kinematic Inputs with a Recurrent Neural Network
Creators: name: Estler, Kaileigh Elisabeth
Publisher: name: Old Dominion University Libraries
Year: 2021

description: BACKGROUND: Knee joint contact (bone on bone) forces are commonly estimated using surrogate measures such as external knee adduction moments (with limited success) or musculoskeletal modeling (more successful). Despite its capabilities, modeling is not optimal for clinicians or persons with limited experience and knowledge. Therefore, the purpose of this study was to design a novel prediction method for knee joint contact forces that is equal or more accurate than modeling, yet simplistic in terms of required inputs. METHODS: This study included all six subjects’ (71.3±6.5kg, 1.7±0.1m) data from the opensource “Grand Challenge” datasets (simtk.org) and two subjects from the "CAMS" datasets, consisting of motion capture and in-vivo instrumented knee prosthesis data (e.g. true knee joint contact forces). Inverse kinematics were used to derive three-dimensional hip, two-dimensional knee (sagittal & frontal), and one-dimensional ankle (sagittal) kinematics during the stance phase of normal walking for all subjects. Medial and lateral knee joint contact forces (normalized to body weight) and inverse kinematics were imported into MATLAB and normalized to 101 data points. A long-short term memory network (LSTM) was created to predict knee forces using combinations of the kinematics inputs. The Grand Challenge data were used for training, while the CAMS data were used for testing. Waveform accuracy was explained by the proportion of variance and root mean square error between network predictions and in-vivo knee joint contact forces data. RESULTS: The top five networks demonstrated excellent fit with the training data, achieving RMSE < 0.26BW for medial and lateral forces, R2 > 0.69 for medial forces, but only R2 > 0.15 for lateral forces. The overall best-selected network contained frontal hip and knee, and sagittal hip and ankle input variables and presented the finest visual waveform agreement with the in vivo data (R2=0.77, RMSE=0.27). CONCLUSIONS: The LSTM network designed in this study revealed knee joint forces could accurately be predicted by using only kinematic input variables. The network’s results outperformed most reports of root mean squared errors and correlation coefficients attained by musculoskeletal modeling and surrogate measures of KAMs.
title: Ordnung über den Zugang und die Zulassung für den konsekutiven Masterstudiengang „Physik" an der Technischen Universität Braunschweig, Fakultät für Elektrotechnik, Informationstechnik, Physik
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fakultät 5
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1216
Universality classes for self-similarity of noiseless multi-dimensional Burgers turbulence and interface growth
Creators: name: Gurbatov, S. N.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The present work is devoted to the evolution of random solutions of the unforced Burgers and KPZ equations in d-dimensions in the limit of vanishing viscosity. We consider a cellular model and as initial condition assign a value for the velocity potential chosen independently within each cell. We show that the asymptotic behavior of the turbulence at large times is determined by the tail of the initial potential probability distribution function. Three classes of initial distribution leading to self-similar evolution are identified: (a) distributions with a power-law tail, (b) compactly supported potential, (c) stretched exponential tails. In class (c) we find that the mean potential (mean height of the surface) increases logarithmically with time and the 'turbulence energy' E(t) (mean square gradient of the surface) decays as 1/t times a logarithmic correction. In classes (a) and (b) we find that the changes in the mean potential and energy have a power-law time dependence. In class (c) the roughness of the surface, measured by its mean--square gradient, may either decrease or increase with time. We discuss also the influence of finite viscosity and long range correlation on the late stage evolution of the Burgers turbulence
description: 21 pages, no figures, LaTeX, submitted to Phys. Rev. E
title: Ordnung des „Kompetenzzentrums für regionale Lehrerkräftefortbildung Braunschweig (KLBS)"
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fakultät 6
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1215
Zero Energy States for a Class of Two-Dimensional Potentials in Graphene
Creators: name: Ioffe, M. V.
name: Nishnianidze, D. N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The excitations in graphene and some other materials are described by two-dimensional massless Dirac equation with applied external potential of some kind. Solutions of this zero energy equation are built analytically for a wide class of scalar potentials. In contrast to most publications on analytical solutions of massless two-dimensional Dirac equation, our potentials really depend on both spatial coordinates in some bounded domain. Several examples of such construction are given explicitly.
description: 9 pages
title: Ordnung des „Instituts für Braunschweigische Regionalgeschichte und Geschichtsvermittlung" der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fakultät 6
Year: 2018
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1214
title: Änderung der Promotionsordnung der Fakultät für Lebenswissenschaften an der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 2
Year: 2018
Subjects: subject: Promotionsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1213
title: Änderung der Ordnung über den Zugang und die Zulassung für den konsekutiven Masterstudiengang „Kultur der technisch-wissenschaftlichen Welt" (KTW) an der Technischen Universität Braunschweig, Fakultät für Geistes- und Erziehungswissenschaften
Creators: name: :None
Publisher: name: Technische Universität Braunschweig. Fakultät 6
Year: 2018
Subjects: subject: Promotionsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 1212