cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Data-PASS: Wishlists and Workflows - Agenda and Presenter Bios
Creators: name: Data-PASS Alliance
Publisher: name: Zenodo
Year: 2019
Subjects: research data
data repositories
DataPASS APSA 2019

description: There has been substantial movement towards greater research transparency across the social science disciplines. Expectations are increasing that, where possible and ethical, published research claims will be buttressed by access to the data and materials that underpin authors’ results. While the timing, nature and extent of what is to be included differs across research traditions, there is no question that in almost all traditions there has been a movement to providing more.
 While a variety of institutional stakeholders have been involved in this movement, journals have been crucial facilitators for their authors to provide research transparency. There is a risk, however, that achieving greater openness might place an additional burden on journal editors. Research transparency might involve additional tasks, extend the publishing timeline, and give editors more risks to manage. Data repositories can assist journals with several of the functions that openness requires, and integrating those functions into publishing processes can lessen the burden of facilitating openness. The focus of this workshop will be how repositories can help journals as they optimize their workflows to achieve transparency.
 The workshop is the fourth held at APSA in a series on "Developing and Implementing Data Policies: Conversations Between Journals and Data Repositories." The series is designed to promote discussion among social science journal editors, personnel from data repositories, data librarians, and other relevant constituencies about current approaches to data citation, management, and archiving.
 As with previous events in the series, the workshop is being organized and led by various members of the Data Preservation Alliance for the Social Sciences (Data-PASS, www.data-pass.org), a consortium of social science data repositories: the Institute for Quantitative Social Science (IQSS) at Harvard University; the Howard W. Odum Institute for Research in Social Science at the University of North Carolina‐Chapel Hill; the Inter‐university Consortium for Political and Social Research (ICPSR) at the University of Michigan; Databrary, based at New York University and at Pennsylvania State University; and the Qualitative Data Repository (QDR) at Syracuse University.
Full disc [CII] mapping of nearby star-forming galaxies: SOFIA FIFI/LS observations of NGC 3627, NGC 4321, and NGC 6946
Creators: name: Kovačić, I.
name: Barnes, A. T.
name: Bigiel, F.
name: De Looze, I.
name: Madden, S. C.
name: Herrera-Camus, R.
name: Krabbe, A.
name: Baes, M.
name: Beck, A.
name: Bolatto, A. D.
name: Bryant, A.
name: Colditz, S.
name: Fischer, C.
name: Geis, N.
name: Iserlohe, C.
name: Klein, R.
name: Leroy, A.
name: Looney, L. W.
name: Poglitsch, A.
name: Sartorio, N. S.
name: Vacca, W. D.
name: van der Giessen, S.
name: Nersesian, A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As a major cooling line of interstellar gas, the far-infrared 158 μm line from singly ionised carbon [CII] is an important tracer of various components of the interstellar medium in galaxies across all spatial and morphological scales. Yet, there is still not a strong constraint on the origins of [CII] emission. In this work, we derive the resolved [CII] star formation rate relation and aim to unravel the complexity of the origin of [CII]. We used the Field-Imaging Far-Infrared Line Spectrometer on board the Stratospheric Observatory for Infrared Astronomy to map [CII] in three nearby star-forming galaxies at sub-kiloparsec scales, namely, NGC 3627, NGC 4321, and NGC 6946, and we compared these [CII] observations to the galactic properties derived from complementary data from the literature. We find that the relationship between the [CII] fine structure line and star formation rate shows variations between the galaxies as well as between different environments within each galaxy. Our results show that the use of [CII] as a tracer for star formation is much more tangled than has previously been suggested within the extragalactic literature, which typically focuses on small regions of galaxies and/or uses large-aperture sampling of many different physical environments. As found within resolved observations of the Milky Way, the picture obtained from [CII] observations is complicated by its local interstellar medium conditions. Future studies will require a larger sample and additional observational tracers, obtained on spatial scales within galaxies, in order to accurately disentangle the origin of [CII] and calibrate its use as a star formation tracer.
description: 17 pages, 10 figures
Magnetic Field of a Compact Spherical Star under f(R,T) Gravity
Creators: name: Islam, Safiqul
name: Basu, Shantanu
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We present the interior solutions of distributions of magnetised fluid inside a sphere in $f(R,T)$ gravity. The magnetised sphere is embedded in an exterior Reissner-Nordström metric. We assume that all physical quantities are in static equilibrium. The perfect fluid matter is studied under a particular form of the Lagrangian density $f(R,T)$. The magnetic field profile in modified gravity is calculated. Observational data of neutron stars are used to plot suitable models of magnetised compact objects. We reveal the effect of $f(R,T)$ gravity on the magnetic field profile, with application to neutron stars, especially highly magnetized neutron stars found in X-ray pulsar systems. Finally the effective potential $V_{\rm eff}$ and innermost stable circular orbits, arising out of motion of a test particle of negligible mass influenced by attraction or repulsion from the massive center, are discussed.
description: 7 pages, 5 figures
title: Institutsordnung für das Institut für Geowissenschaften der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 2
Year: 1991
Subjects: subject: Institutsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig
General Synthetic Route Towards Highly Dispersed Metal Clusters Enabled by Poly(ionic liquid)s
Creators: name: Sun, Jian-Ke
name: Kochovski, Zdravko
name: Zhang, Wei-Yi
name: Kirmse, Holm
name: Lu, Yan
name: Antonietti, Markus
name: Yuan, Jiayin
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The capability to synthesize a broad spectrum of metal clusters (MCs) with their size controllable in a subnanometer scale presents an enticing prospect for exploring nanosize-dependent properties. Here we report an innovative design of a capping agent from a polytriazolium poly(ionic liquid) (PIL) in a vesicular form in solution that allows for crafting a variety of MCs including transition metals, noble metals, and their bimetallic alloy with precisely controlled sizes (~ 1 nm) and record-high catalytic performance. The ultrastrong stabilization power is result of an unusual synergy between the conventional binding sites in the heterocyclic cations in PIL, and an in-situ generated polycarbene structure induced simultaneously to the reduction reaction. INTRODUCTION
description: 45 pages, 81 figures
Coherent Atomic Oscillations and Resonances between Coupled Bose-Einstein Condensates with Time-Dependent Trapping Potential
Creators: name: Abdullaev, F. Kh.
name: Kraenkel, R. A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chaotic Dynamics (nlin.CD)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study the quantum coherent-tunneling between two Bose-Einstein condensates separated through an oscillating trap potential. The cases of slowly and rapidly varying in time trap potential are considered. In the case of a slowly varying trap we study the nonlinear resonances and chaos in the oscillations of the relative atomic population. Using the Melnikov function approach, we find the conditions for chaotic macroscopic quantum-tunneling phenomena to exists. Criteria for the onset of chaos are also given. We find the values of frequency and modulation amplitude which lead to chaos on oscillations in the relative population, for any given damping and the nonlinear atomic interaction. In the case of a rapidly varying trap we use the multiscale expansion method in the parameter epsilon = 1/Omega, where Omega is the frequency of modulations and we derive the averaged system of equations for the modes. The analysis of this system shows that new macroscopic quantum self trapping regions, in comparison with the constant trap case, exist.
description: 31 pages, 12 figures. LaTex. Submitted to Physical Review A
Tectocepheidae Grandjean 1954
Creators: name: Ermilov, Sergey G.
name: Corpuz-Raros, Leonila
name: Naredo, Jeremy C. B.
name: Eusebio, Orlando L.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Tectocepheidae

description: Tectocepheidae   Tegeozetes tunicatus Berlese, 1913: 3 (1 ex.), 11 (5 ex.), 12 (1 ex.), 13 (1 ex.). Distribution: Tropics, subtropics, southern Palaearctic region.
description: Published as part of Ermilov, Sergey G., Corpuz-Raros, Leonila, Naredo, Jeremy C. B. & Eusebio, Orlando L., 2022, New Faunistical Data On Oribatid Mites From The Philippines, With A Description Of A New Species Of The Genus Trachyoribates (Acari, Oribatida, Haplozetidae), pp. 217-229 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (3) on page 221, DOI: 10.17109/AZH.68.3.217.2022, http://zenodo.org/record/7160675
VEGAS-SSS: An intra-group component in the globular cluster system of NGC 5018 group of galaxies using VST data
Creators: name: Lonare, Pratik
name: Cantiello, Michele
name: Mirabile, Marco
name: Spavone, Marilena
name: Rejkuba, Marina
name: Hilker, Michael
name: Habas, Rebecca
name: Iodice, Enrichetta
name: Hazra, Nandini
name: Riccio, Gabriele
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Globular clusters (GCs) are fossil tracer of formation and evolution of galaxies and studying their properties provides crucial insights into past formation and interaction events. We study the properties of GC candidates in 1.25 $\times$ 1.03 sq. degrees area centred on NGC 5018 group of galaxies using deep, wide field and multi-band observations obtained with VST. We derived photometric catalogues of compact and extended sources and identified GC candidates using a set of photometric and morphometric selection parameters. A GC candidates catalogue is inspected using a statistical background decontamination technique. The 2D distribution map of GC candidates reveals an overdensity of sources on brightest member of group, NGC 5018. No significant GC overdensities are observed in other bright galaxies of group. We report discovery of a candidate local nucleated LSB dwarf galaxy possibly in tidal interaction with NGC 5018. The 2D map also reveals an intra-group GC population aligning with bright galaxies and along intra-group light component. Radial density profile of GC candidates in NGC 5018 follows galaxy surface brightness profile. Colour profile of GC candidates centred on this galaxy shows no evidence of well-known colour bimodality, which is instead observed in intra-group population. From GC luminosity function (GCLF) analysis, we find a low specific frequency $S_{\!\rm N}=0.59 \pm 0.27$ for NGC 5018, consistent with previous results. This relatively low $S_{\!\rm N}$ and lack of colour bimodality might be due to a combination of observational data limitations and the post-merger status of NGC 5018, which might host a population of relatively young GCs. For intra-group GC population, we obtain a lower limit of $S_{\!\rm {N,gr}}\sim0.6$. Using GCLF as a distance indicator, we estimate that NGC 5018 is located $38.0 \pm 7.9$ Mpc away, consistent with values in the literature..
title: Ordnung des Zentrums für Abfallforschung (ZAF) der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 1992
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 46
title: Ordnung zur Änderung der Beitragsordnung der Studentenschaft der Technischen Universität Braunschweig vom 6.6.1992
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Studentenschaft
Year: 1993
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 47
Responses to Caring Speech Acts: The Politeness Strategies of Indonesian Students in Academic Activities
Creators: name: Susanti, Ratna
name: Sumarlam Sumarlam
name: Djatmika Djatmika
name: Rohmadi, Mohammad
Publisher: name: figshare
Year: 2019
Subjects: Language

description: This study aims to identify the forms of language-based politeness when interacting with lecturers and other students in academic activities. The basic theory used in this research is the theory of speech acts according to Searle and the theory of politeness according to Leech (2014). This research includes qualitative research using a pragmatic approach. The results showed that in the interaction between students and interaction between students and lecturers through speech acts that implicate an event speech indifferent. Indifference or care is one form of student character that can make stock for himself as a graduate who can be competitive, in the world of work.
Computation-and-Communication Efficient Coordinated Multicast Beamforming in Massive MIMO Networks
Creators: name: Yin, Shiqi
name: Dong, Min
Publisher: name: arXiv
Year: 2024
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The main challenges in designing downlink coordinated multicast beamforming in massive multiple-input multiple output (MIMO) cellular networks are the complex computational solutions and significant fronthaul overhead for centralized coordination. This paper proposes a coordinated multicast beamforming solution that is both computation and communication efficient. For joint BS coordination with individual base station transmit power budgets, we first obtain the optimal structure of coordinated multicast beamforming. It reveals that the beamformer at each BS is naturally distributed and only depends on the local channel state information (CSI) at its serving BS. Moreover, the optimal beamformer is a weighted minimum mean square error (MMSE) beamformer with a low-dimensional structure of unknown weights to be optimized, independent of the number of BS antennas. Utilizing the optimal structural properties, we propose fast algorithms to determine the unknown parameters for the optimal beamformer. The main iterative algorithm decomposes the problem into small subproblems, yielding only closed/semi-closed form updates. Furthermore, we propose a semi-distributed computing approach for the proposed algorithm that allows each BS to compute its beamformer based on the local CSI without the need for global CSI sharing, resulting in the fronthaul overhead independent of the number of BS antennas. We further extend our results to the design under the imperfect CSI and other coordination scenarios. Simulation results demonstrate that our proposed methods can achieve near-optimal performance with significantly lower computational time for massive MIMO systems than the conventional approaches.
description: 17 pages, 10 figures
Forecasts of effects of beam systematics and deprojection on the third-generation ground-based cosmic microwave background experiment
Creators: name: Dou, Jiazheng
name: Han, Jiakang
name: Zhao, Wen
name: Hu, Bin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The ground-based cosmic microwave background (CMB) experiments are susceptible to various instrumental errors, especially for $B$-mode measurements. The difference between the response of two polarized detectors, referred to as the beam mismatch, would induce a $T\rightarrow P$ leakage when the detector pair is differenced to cancel the unpolarized signal. We applied the deprojection technique on the time-ordered mock data to mitigate the systematic contamination caused by beam mismatches by assuming the third-generation ground-based CMB experiment (S3). Our results show that the deprojection effectively recovered the input power spectra. We adopted the Needlet ILC (NILC) and constrained ILC (cILC) methods to reconstruct the foreground-cleaned $TEB$ maps, and we evaluated the level of residual systematic errors after the foreground cleaning pipeline by comparing the power spectra between the systematics-added data after deprojection and the systematics-free data. The results show that the residual beam systematics cleaned by deprojection do not bias the CMB measurements of the $T$, $E$, and $B$ modes nor the CMB lensing reconstruction or the estimation of the tensor-to-scalar ratio under the S3 sensitivity.
description: 13 pages, 9 figures, 1 table; accepted by A&A
title: Organisationsplan für den Fachbereich Architektur: Bildung des Instituts für Städtebau und Landschaftsplanung unter Aufhebung des Instituts für Städtebau, Wohnungswesen und Landschaftsplanung
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 4
Year: 1993
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 48
Inter-comparing and improving land surface temperature estimates from passive microwaves over the Jiangsu province of the People’s Republic of China
Creators: name: Hagan, Daniel F. T.
name: G. J. Wang
name: R. M. Parinussa
name: Shi, Xiao
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: In the recent years, the FengYun-3B passive microwave observations (FY3B) have been used to study global and regional soil moisture estimates, and land surface temperature (LST) has been an important input in the retrieval model. Previous studies proposed a linear model to derive LST from Ka-band brightness temperatures (H09 approach) which were routinely masked based on open water data. This study aimed to further understand microwave emission under such challenging open water conditions and developed the first data-driven approach to correct for such open water conditions. The H09 was first applied to the FY3B observations, and then inter-compared against MODIS (Moderate-resolution Imaging Spectro-radiometer), MERRA (Modern Era Retrospective analysis for Research and Applications) and ground observations over the Jiangsu province in the People’s Republic of China. Several freshwater bodies are located within this region, and the Pacific Ocean bounds at the east, this makes it an excellent region for the study of open water impact on the passive microwave observations. As in previous studies, the quality of the FY3B LST based on the H09 approach dropped over the regions with high open water. While the MERRA and MODIS LST products maintained an average correlation of about 0.95, the FY3B LST product had an average correlation of 0.85 with drops to about 0.65 over the open water regions. Additional comparisons also revealed biases over the open water regions within the passive microwave product. An open water metric, which is based on the percentage of a pixel and its surrounding pixels covered by water was developed to quantify the impact of open water. Based on a pixel-wise linear relationship between the MERRA LST and FY3B Ka-band brightness temperature, spatially variable slopes and intercepts were obtained as a function of open water to produce a correction for open water in the H09 which leads to the HG18 approach. Validations with both the MODIS LST product and the ground observations showed that there was a significant reduction in both the absolute bias (MODIS: 2 K, in situ: 10 K) and the standard errors (MODIS: 0.8 K, in situ: 1 K) using the HG18 approach. This opens up a new window towards further improving and understanding LST retrievals from passive microwave products.
title: Ordnung für die Verleihung der Agnes-Pockels-Medaille der Technischen Universität Carolo-Wilhelmina zu Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 1993
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 49
The role of g-wave pairing and Josephson tunneling in high Tc superconductors
Creators: name: Shevchenko, P. V.
name: Sushkov, O. P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The implications of the two-pocket Fermi surface for macroscopic quantum phenomena are considered. We demonstrate that in the case of the two-pocket Fermi surface the g-wave pairing is closely related to the d-wave one. As a result two macroscopic condensates arise. The Josephson tunneling for such two-component system has very special properties. We prove that the presence of the g-wave does not contradict the existing experimental data on tunneling. We also discuss the possible ways to experimentally reveal the g-wave component.
description: LaTeX, 10 pages and 5 ps figures of the paper
Dampfiellidae Balogh 1961
Creators: name: Ermilov, Sergey G.
name: Corpuz-Raros, Leonila
name: Naredo, Jeremy C. B.
name: Eusebio, Orlando L.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Dampfiellidae

description: Dampfiellidae   Dampfiella foliata Balogh et Mahunka, 1974: 3 (7 ex.), 4 (10 ex.), 5 (1 ex.), 11 (3 ex.), 12 (3 ex.). Distribution: Oriental region.
description: Published as part of Ermilov, Sergey G., Corpuz-Raros, Leonila, Naredo, Jeremy C. B. & Eusebio, Orlando L., 2022, New Faunistical Data On Oribatid Mites From The Philippines, With A Description Of A New Species Of The Genus Trachyoribates (Acari, Oribatida, Haplozetidae), pp. 217-229 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (3) on page 222, DOI: 10.17109/AZH.68.3.217.2022, http://zenodo.org/record/7160675
Enhancing the efficiency of quantum annealing via reinforcement: A path-integral Monte Carlo simulation of the quantum reinforcement algorithm
Creators: name: Ramezanpour, A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Machine Learning (cs.LG)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The standard quantum annealing algorithm tries to approach the ground state of a classical system by slowly decreasing the hopping rates of a quantum random walk in the configuration space of the problem, where the on-site energies are provided by the classical energy function. In a quantum reinforcement algorithm, the annealing works instead by increasing gradually the strength of the on-site energies according to the probability of finding the walker on each site of the configuration space. Here, by using the path-integral Monte Carlo simulations of the quantum algorithms, we show that annealing via reinforcement can significantly enhance the success probability of the quantum walker. More precisely, we implement a local version of the quantum reinforcement algorithm, where the system wave function is replaced by an approximate wave function using the local expectation values of the system. We use this algorithm to find solutions to a prototypical constraint satisfaction problem (XORSAT) close to the satisfiability to unsatisfiability phase transition. The study is limited to small problem sizes (a few hundreds of variables), nevertheless, the numerical results suggest that quantum reinforcement may provide a useful strategy to deal with other computationally hard problems and larger problem sizes even as a classical optimization algorithm.
description: 18 pages, 4 figures
title: Ordnung zur Änderung der Beitragsordnung der Studentenschaft der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Studentenschaft
Year: 1994
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 50
JWST-ALMA Study of a Hub-Filament System in the Nascent Phase
Creators: name: Bhadari, N. K.
name: Dewangan, L. K.
name: Jadhav, O. R.
name: Hoque, Ariful
name: Pirogov, L. E.
name: Goldsmith, Paul F.
name: Maity, A. K.
name: Sharma, Saurabh
name: Ismail, A. Haj
name: Baug, Tapas
Publisher: name: arXiv
Year: 2025
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Star clusters, including high-mass stars, form within hub-filament systems (HFSs). Observations of HFSs that remain unaffected by feedback from embedded stars are rare yet crucial for understanding the mass inflow process in high-mass star formation. Using the JWST NIRCAM images, Dewangan et al. 2024, reported that the high-mass protostar G11P1 is embedded in a candidate HFS (G11P1-HFS; $<0.6$ pc). Utilizing ALMA N$_{2}$H$^{+}$(1-0) data, we confirm the presence of G11P1-HFS and study the dense gas kinematics. We analyzed the position-position-velocity (PPV) map and estimated on-sky velocity gradient ($V_g$) and gravity ($\mathcal{F}_{g}$) vectors. The spatial distribution of gas velocity and H$_2$ column density was examined. The steep $V_g$ of 5 km s$^{-1}$ pc$^{-1}$ and $-$7 km s$^{-1}$ pc$^{-1}$ toward either side of G11P1-hub, and the decreasing $V_g$ toward the hub, identify G11P1-HFS as a small-scale HFS in its nascent phase. $V_g$ and $\mathcal{F}_{g}$ align along the filaments, indicating gravity-driven flows. This work highlights the wiggled, funnel-shaped morphology of a HFS in PPV space, suggesting the importance of subfilaments or transverse gas flows in mass transportation to the hub.
description: 10 pages, 11 figures, 1 table, Accepted for publication in A&A Letters
Otocepheidae Balogh 1961
Creators: name: Ermilov, Sergey G.
name: Corpuz-Raros, Leonila
name: Naredo, Jeremy C. B.
name: Eusebio, Orlando L.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Otocepheidae

description: Otocepheidae   Dolicheremaeus luzonicellus Corpuz-Raros, 2008: 2 (1 ex.), 3 (15 ex.), 6 (1 ex.), 12 (5 ex.). Distribution: Philippines.
 Dolicheremaeus luzonicus Corpuz-Raros, 2000: 10 (6 ex.). Distribution: Philippines.
description: Published as part of Ermilov, Sergey G., Corpuz-Raros, Leonila, Naredo, Jeremy C. B. & Eusebio, Orlando L., 2022, New Faunistical Data On Oribatid Mites From The Philippines, With A Description Of A New Species Of The Genus Trachyoribates (Acari, Oribatida, Haplozetidae), pp. 217-229 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (3) on page 222, DOI: 10.17109/AZH.68.3.217.2022, http://zenodo.org/record/7160675
Fractal Structures and Scaling Laws in the Universe: Statistical Mechanics of the Self-Gravitating Gas
Creators: name: de Vega, H. J.
name: S'anchez, N.
name: Combes, F.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: Condensed Matter (cond-mat)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Fractal structures are observed in the universe in two very different ways. Firstly, in the gas forming the cold interstellar medium in scales from 10^{-4} pc till 100 pc. Secondly, the galaxy distribution has been observed to be fractal in scales up to hundreds of Mpc. We give here a short review of the statistical mechanical (and field theoretical) approach developed by us. We consider a non-relativistic self-gravitating gas in thermal equilibrium at temperature T inside a volume V. The statistical mechanics of such system has special features and, as is known, the thermodynamical limit does not exist in its customary form. Moreover, the treatments through microcanonical, canonical and grand canonical ensembles yield different results.We present here for the first time the equation of state for the self-gravitating gas in the canonical ensemble. We find that it has the form p = [N T/ V] f(eta), where p is the pressure, N is the number of particles and η\equiv {G m^2 N \over V^{1/3} T}. The N \to\infty and V \to\infty limit exists keeping ηfixed. We compute the function f(η) using Monte Carlo simulations and for small eta analytically. We compute the thermodynamic quantities of the system as free energy, entropy, chemical potential, specific heat, compressibility and speed of sound. We reproduce the well-known gravitational phase transition associated to the Jeans' instability. Namely, a gaseous phase for eta < eta_c and a condensed phase for eta > eta_c. Moreover, we derive the precise behaviour of the physical quantities near the transition. In particular, the pressure vanishes as p \sim(eta_c-eta)^B with B \sim 0.2 and eta_c \sim 1.6 and the energy fluctuations diverge as \sim(eta_c-eta)^{B-1}. The speed of sound decreases monotonically and approaches the value sqrt{T/6} at the transition.
description: Invited paper to the special issue of the `Journal of Chaos, Solitons and Fractals': `Superstrings, M, F, S...theory', M. S El Naschie and C. Castro, Editors. Latex file, 16 pages plus three .ps figures
Improved Upper Bound to the Entropy of a Charged System
Creators: name: Hod, Shahar
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, we derived an improved universal upper bound to the entropy of a charged system $S \leq π(2E b-q^2)/ \hbar$. There was, however, some uncertainty in the value of the numerical factor which multiplies the $q^2$ term. In this paper we remove this uncertainty; we rederive this upper bound from an application of the generalized second law of thermodynamics to a gedanken experiment in which an entropy-bearing charged system falls into a Schwarzschild black hole. A crucial step in the analysis is the inclusion of the effect of the spacetime curvature on the electrostatic self-interaction of the charged system.
description: 8 pages
Photo-induced anomalous Hall effect in the type-II Weyl-semimetal WTe2 at room-temperature
Creators: name: Seifert, Paul
name: Sigger, Florian
name: Kiemle, Jonas
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Kastl, Christoph
name: Wurstbauer, Ursula
name: Holleitner, Alexander
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using Hall photovoltage measurements, we demonstrate that an anomalous Hall-voltage can be induced in few layer WTe2 under circularly polarized light illumination. By applying a bias voltage along different crystal axes, we find that the photo-induced anomalous Hall conductivity coincides with a particular crystal axis. Our results are consistent with the underlying Berry-curvature exhibiting a dipolar distribution due to the breaking of crystal inversion symmetry. Using a time-resolved optoelectronic auto-correlation spectroscopy, we find that the decay time of the anomalous Hall voltage exceeds the electron-phonon scattering time by orders of magnitude but is consistent with the comparatively long spin-lifetime of carriers in the momentum-indirect electron and hole pockets in WTe2. Our observation suggests, that a helical modulation of an otherwise isotropic spin-current is the underlying mechanism of the anomalous Hall effect.
More on the determination of the coronal heating function from Yohkoh data
Creators: name: Reale, F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Two recent works have analyzed a solar large and steady coronal loop observed with Yohkoh/SXT in two filter passbands to infer the distribution of the heating along it. Priest et al. (2000) modelled the distribution of the temperature obtained from filter ratio method with an analytical approach, and concluded that the heating was uniform along the loop. Aschwanden (2001) found that a uniform heating led to an unreasonably large plasma column depth along the line of sight, and, using a two component loop model, that a footpoint-heated model loop (with a minor cool component) yields more acceptable physical solutions. We revisit the analysis of the same loop system, considering conventional hydrostatic single loop models with uniformly distributed heating, and with heating localized at the footpoints and at the apex, and an unstructured background contribution extrapolated from the region below the analyzed loop. The flux profiles synthesized from the loop models have been compared in detail with those observed in both filter passbands with and without background subtraction; we find that background-subtracted data are fitted with acceptable statistical significance by a model of relatively hot loop (~3.7 MK) heated at the apex, with a column depth ~1/10 of the loop length. In discussing our results, we put warnings on the importance of aspects of data analysis and modeling, such as considering diffuse background emission in complex loop regions.
description: 17 pages, 4 figures, refereed paper
Line detections in photospheric radius expansion bursts from 4U 1820-303
Creators: name: Barra, F.
name: Barret, D.
name: Pinto, C.
name: Di Salvo, T.
name: Weinberg, N.
name: Guichandut, S.
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Context: NICER (Neutron star Interior Composition ExploreR) is the instrument of choice for the spectral analysis of type I X-ray bursts, as it provides high throughput at X-ray CCD resolution, down to 0.3 keV. Aims: This study investigates whether the energies of absorption lines detected in photospheric radius expansion (PRE) bursts correlate with the inferred blackbody radius. Previous reports suggested such a correlation, attributed to a combination of weaker gravitational redshift and higher blueshifts in bursts with larger radii. Methods: The analysis reexamines four previously studied PRE bursts and examines eight additional bursts from 4U 1820-303, evidencing PRE. Spectral evolution is tracked on the shortest possible timescales (tenth of a second) adopting two parallel continuum descriptions to characterise the photospheric expansion and line evolution. Applying the accretion-enhanced model, maximum blackbody radii of up to $\sim$ 900 km are inferred, with peak bolometric luminosities exceeding the Eddington limit of an Helium accretor. Absorption lines are assessed for significance using Monte Carlo simulations, and spectral lines are characterised using the state-of-art plasma codes available within {\sc{spex}} with a phenomenological continuum. A thorough parameter search explores Doppler shifts to avoid local minima. Results: Several significant (> 99.9%) absorption lines, including the previously reported 2.97 keV line, are detected. While no consistent correlation between line energies and blackbody radii is confirmed, bursts with larger radii exhibit up to four lines and the line strength is higher. The modelling suggests that the observed lines mostly originate from slightly redshifted (almost rest-frame) photo-/collisionally ionised gas in emission. For the burst with the largest PRE, a combination of photo-ionised plasma in both emission and absorption is preferred.
description: 18 pages, 11 figures, accepted for publication in Astronomy & Astrophysics
Reconstructing Gravitational Wave Core-Collapse Supernova Signals with Dynamic Time Warping
Creators: name: Suvorova, Sofia
name: Powell, Jade
name: Melatos, Andrew
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Core-collapse supernovae (CCSNe) are a potential source for ground-based gravitational wave detectors, as their predicted emission peaks in the detectors' frequency band. Typical searches for gravitational wave bursts reconstruct signals using wavelets. However, as CCSN signals contain multiple complex features in the time-frequency domain, these techniques often struggle to reconstruct the entire signal. An alternative method developed in recent years involves applying principal component analysis (PCA) to a set of simulated CCSN models. This technique enables model selection between astrophysical CCSN models as well as waveform reconstruction. However, PCA faces its own difficulties, such as being unable to reconstruct signals longer than the simulations; many CCSN simulations are stopped before the emission peaks due to insufficient computational resources. In this study, we show how combining PCA with dynamic time warping (DTW) improves the reconstruction of CCSN gravitational wave signals in Gaussian noise characteristic of Advanced LIGO at design sensitivity. For the waveforms used in this analysis, we find that the number of PCs needed to represent 90% of the data is reduced from nine to four by applying DTW, and that the match between the original and reconstructed waveforms improves for signal-to-noise ratios in the range [0,50].
Multifractality in Time Series
Creators: name: Canessa, Enrique
Publisher: name: arXiv
Year: 2000
Subjects: subject: Condensed Matter (cond-mat)
subject: Chaotic Dynamics (nlin.CD)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We apply the concepts of multifractal physics to financial time series in order to characterize the onset of crash for the Standard & Poor's 500 stock index x(t). It is found that within the framework of multifractality, the "analogous" specific heat of the S&P500 discrete price index displays a shoulder to the right of the main peak for low values of time lags. On decreasing T, the presence of the shoulder is a consequence of the peaked, temporal x(t+T)-x(t) fluctuations in this regime. For large time lags (T>80), we have found that C_{q} displays typical features of a classical phase transition at a critical point. An example of such dynamic phase transition in a simple economic model system, based on a mapping with multifractality phenomena in random multiplicative processes, is also presented by applying former results obtained with a continuous probability theory for describing scaling measures.
description: 22 pages, Revtex, 4 ps figures - To appear J. Phys. A (2000)
Oribatellidae Jacot 1925
Creators: name: Ermilov, Sergey G.
name: Corpuz-Raros, Leonila
name: Naredo, Jeremy C. B.
name: Eusebio, Orlando L.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Oribatellidae

description: Oribatellidae   Oribatella malaya Balogh et Mahunka, 1974: 3 (1 ex.), 4 (2 ex.), 9 (3 ex.), 10 (1 ex.), 11 (1 ex.). Distribution: Oriental region. Remarks. Specimens from the Philippines are morphologically similar to the original description (BALOGH & MAHUNKA 1974) and redescription (MAHUNKA 1987) based on materials from Malaysia, but differ by the presence of short (versus medium-sized to long) separation of lamellae anteromedially as in representatives of the genus Ophidiotrichus Grandjean, 1953, comparatively thin, hardly thickened (versus thick) lamellar seta and four or five (versus six to eight) teeth on tutorial cusp.
description: Published as part of Ermilov, Sergey G., Corpuz-Raros, Leonila, Naredo, Jeremy C. B. & Eusebio, Orlando L., 2022, New Faunistical Data On Oribatid Mites From The Philippines, With A Description Of A New Species Of The Genus Trachyoribates (Acari, Oribatida, Haplozetidae), pp. 217-229 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (3) on page 222, DOI: 10.17109/AZH.68.3.217.2022, http://zenodo.org/record/7160675
Solitons in Chern-Simons theories of nonrelativistic CP^{N-1} models: Spin textures in the quantum Hall effect
Creators: name: Ichinose, Ikuo
name: Sekiguchi, Akira
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Topological solitons in CP^{N-1} models coupled with Chern-Simons gauge theory and a Hopf term are studied both analytically and numerically.These models are low-energy effective theories for the quantum Hall effect with internal degrees of freedom, like that in bilayer electron systems. We explicitly show that the CP^{N-1} models describe quite well spin textures in the original Chern-Simons theory of bosonized electrons.
description: Latex, 19 pages, 6 figures
SN 2018is: a low-luminosity Type IIP supernova with narrow hydrogen emission lines at early phases
Creators: name: Dastidar, R.
name: Misra, K.
name: Valenti, S.
name: Sand, D. J.
name: Pastorello, A.
name: Reguitti, A.
name: Pignata, G.
name: Benetti, S.
name: Bose, S.
name: Gangopadhyay, A.
name: Singh, M.
name: Tomasella, L.
name: Andrews, J. E.
name: Arcavi, I.
name: Ashall, C.
name: Bilinski, C.
name: Bostroem, K. A.
name: Buckley, D. A. H.
name: Cannizzaro, G.
name: Chomiuk, L.
name: Congiu, E.
name: Dong, S.
name: Dong, Y.
name: Elias-Rosa, N.
name: Fraser, M.
name: Gall, C.
name: Gromadzki, M.
name: Hiramatsu, D.
name: Hosseinzadeh, G.
name: Howell, D. A.
name: Hsiao, E. Y.
name: McCully, C.
name: Smith, N.
name: Strader, J.
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a comprehensive photometric and spectroscopic study of the Type IIP SN 2018is. The $V$-band luminosity and the expansion velocity at 50 days post-explosion are $-$15.1$\pm$0.2 mag (corrected for A$_V$=1.34 mag) and 1400 km s$^{-1}$, classifying it as a low-luminosity SN II. The recombination phase in the $V$-band is shorter, lasting around 110 days, and exhibits a steeper decline (1.0 mag per 100 days) compared to most other low-luminosity SNe II. Additionally, the optical and near-infrared spectra display hydrogen emission lines that are strikingly narrow, even for this class. The Fe II and Sc II line velocities are at the lower end of the typical range for low-luminosity SNe II. Semi-analytical modelling of the bolometric light curve suggests an ejecta mass of $\sim$8 M$_\odot$, corresponding to a pre-supernova mass of $\sim$9.5 M$_\odot$, and an explosion energy of $\sim$0.40 $\times$ 10$^{51}$ erg. Hydrodynamical modelling further indicates that the progenitor had a zero-age main sequence mass of 9 M$_\odot$, coupled with a low explosion energy of 0.19 $\times$ 10$^{51}$ erg. The nebular spectrum reveals weak [O I] $λλ$6300,6364 lines, consistent with a moderate-mass progenitor, while features typical of Fe core-collapse events, such as He I, [C I], and [Fe I], are indiscernible. However, the redder colours and low ratio of Ni to Fe abundance do not support an electron-capture scenario either. As a low-luminosity SN II with an atypically steep decline during the photospheric phase and remarkably narrow emission lines, SN 2018is contributes to the diversity observed within this population.
description: 25 pages, 21 figures, accepted for publication in A&A
Experimental and theoretical studies on structure, bonding and luminescence properties of Eu(III) and Tb(III) complexes of a new macrocyclic based 8HQ ligand
Creators: name: , Rohini
name: Minati Baral
name: B. K. Kanungo
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: 8-Hydroxyquinolate complexes of lanthanide have a variety of applications in electroluminescent devices due to their unique luminescence properties. But, the simple 8HQ ligand has a tendency to form polynuclear complexes. However, linking several 8HQ units to a single moiety facilitates the formation of mononuclear complexes due to flexibility, preorganization, π-stacking and entropy effect. Mononuclear complexes of europium and terbium ions with a new chelator, [1,4,7-tris-{(5-methylene-8-hydroxyquinoline)-1,4,7-triazacyclononane}], embedded with these prerequisites are synthesized and characterized. Each Ln(III) is nine-coordinate and bonded to three sets of O,N-donors of 8HQ units and three water resulting in a pseudo-C3 symmetric tricapped trigonal prismatic geometry. In silico studies suggest that the metal ion can easily be encapsulated in the central cavity of the ligand without changing its basic structure. Interesting, diverse behavior was observed for photoluminescence spectral studies in solid and solution state. At room temperature, an antenna effect was observed for the complexes only in the powder form. The experimental photoluminescence studies have been explained with the help of TDDFT. The nature of bonding between the lanthanide and the ligand, interpreted by NBO and ETS-NOCV, suggest that the Ln-L bonds are ∼25% covalent. The Slater Condon parameters, spin-orbital coupling constants, and the nephelauxetic parameters were calculated from LF-DFT.
Punctoribatidae Thor 1937
Creators: name: Ermilov, Sergey G.
name: Corpuz-Raros, Leonila
name: Naredo, Jeremy C. B.
name: Eusebio, Orlando L.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Punctoribatidae

description: Punctoribatidae   Lamellobates orientalis Csiszár, 1961: 10 (2 ex.). Distribution: Oriental and southern Palaearctic regions.
description: Published as part of Ermilov, Sergey G., Corpuz-Raros, Leonila, Naredo, Jeremy C. B. & Eusebio, Orlando L., 2022, New Faunistical Data On Oribatid Mites From The Philippines, With A Description Of A New Species Of The Genus Trachyoribates (Acari, Oribatida, Haplozetidae), pp. 217-229 in Acta Zoologica Academiae Scientiarum Hungaricae 68 (3) on page 223, DOI: 10.17109/AZH.68.3.217.2022, http://zenodo.org/record/7160675
title: Aufhebung des (Teil-)Studiengangs "Vermessungswesen" im Fachbereich Bauingenieur- und Vermessungswesen
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 5
Year: 1994
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 51