cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Astyloneura glennia
Creators: name: Mbata, Keith J.
name: Prins, Jurate De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Zygaenidae
Astyloneura
Astyloneura glennia

description: Astyloneura glennia (Jordan, 1907)
COMMON NAME(S): Burnet moth, Forester moth or Smoky moth.
SYNONYM(S): None.
IUCN STATUS: Not Evaluated (NE).
DISTRIBUTION: Mozambique, South Africa, Zambia, Zimbabwe.
LOCALITY IN ZAMBIA: Kafue, in Lusaka Province.
LARVAL HOSTPLANT(S): Unknown.
SOURCES: De Prins & De Prins 2022; Hampson 1910c.
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 68, DOI: 10.11646/zootaxa.5354.1.1, http://zenodo.org/record/10130434
Untitled Item
Creators: name: Chavan, Dr Niranjan N
name: Chavan, Dr Komal
Publisher: name: figshare
Year: 2021
Subjects: subject: 111402 Obstetrics and Gynaecology
subject: FOS: Clinical medicine

description: Background: Menopause is a natural and normal event-not a disease or disorder. A woman not menstruating for one year after her last period is termed as being postmenopausal. Yet menopause symptoms may significantly affect quality of life, sexual function, body composition and metabolic parameters. According to a 2002 study, the Women’s Health Initiative (WHI), found women who took HRT for several years had an increased risk of breast cancer, stroke and heart disease. Hence, the need for alternative therapy with nutritional supplements like isoflavones, calcium, magnesium and vitamin D.Methods: Study was conducted of 50 patients visiting OPD in the year 2018. Each patient was counseled and a consent form was signed prior to data collection. All patients received oral preparation of isoflavones, calcium, magnesium, vitamin D up to 1 year. As- sessment of quality of life and sexual function through evaluation of the Menopause-Specific Quality of Life Questionnaire (MENQOL) and the Female Sexual Function Index.Results: After 12 months, a significant reduction in Menopause- specific quality of life (MENQOL) (p < 0.05) and a significant increase in all Female Sexual Function Index (FSFI) domain scores (p < 0.05) was observed. Isoflavones improve menopausal symptoms with- out causing significant side effects. Isoflavones together with calcium, vitamin D improve vasomotor disturbances as well as quality of life and sexual function in menopausal women. Furthermore, this mixture ameliorates lipid profile and body composition toward pre-menopausal homeostatic condition. Isoflavones and vitamin D also exert a synergistic effect on bone metabolism.Conclusion: The combination of isoflavones together with calcium, vitamin D and magnesium acts as an alternative to HRT exhibit- ing positive effects on menopausal symptoms, quality of life, sexual function, body composition and metabolic parameters.Keywords: Isoflavones; Calcium; Vitamin D; Magnesium; Menopausal Symptoms; Quality of Life; Sexual Function; Body Composition; Metabolic Parameters
title: Institutsordnung für Wissenschaftliche Einrichtungen des Fachbereichs Architektur (FB 4)
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 4
Year: 1985
Subjects: subject: Institutsordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig
Ambiguity in the evaluation of the effective action on the cone
Creators: name: Iellici, D.
name: Moreira, E. S.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An ambiguity in the computation of the one-loop effective action for fields living on a cone is illustrated. It is shown that the ambiguity arises due to the non-commutativity of the regularization of ultraviolet and (conical) boundary divergencies.
description: REVTeX file, 10 pages. Comments on recent papers have been added
Kampimodromus langei Wainstein & Arutunjan 1973
Creators: name: Saglam, Damla
name: Doker, Ismail
name: Ozman-Sullivan, Sebahat K.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Mesostigmata
Phytoseiidae
Kampimodromus
Kampimodromus langei

description: Kampimodromus langei Wainstein & Arutunjan
(Figures 1, 2)
 Kampimodromus langei Wainstein & Arutunjan, 1973: 55, Fig. 2.
description: Published as part of Saglam, Damla, Doker, Ismail & Ozman-Sullivan, Sebahat K., 2022, Re-description of the female of Kampimodromus langei Wainstein & Arutunjan (Acari: Phytoseiidae) based on normal and abnormal specimens, with the first description of its male, pp. 446-453 in Acarologia 62 (2) on page 447
Time-integrated polarizations in GRB prompt phase via the Multi-window interpretation
Creators: name: Wang, Xu
name: Lan, Mi-Xiang
name: Tang, Qing-Wen
name: Wu, Xue-Feng
name: Dai, Zi-Gao
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The multi-window observations, including the light curve and the evolutions of the spectral peak energy ($E_p$), the polarization degree (PD) and the polarization angle (PA), are used to infer the model parameters to predict the time-integrated PD in gamma-ray burst (GRB) prompt phase. We select 23 GRBs co-detected by Fermi/GBM and polarization detectors (i.e., GAP, POLAR and AstroSat). In our multi-window fitting, the light curve, $E_p$ curve, PD curve and PA curve are interpreted simultaneously under the synchrotron radiation model in ordered magnetic fields (i.e., the aligned-fields case and the toroidal-fields case). For the bursts with abrupt PA rotations, the predicted time-integrated PD of the aligned-fields case roughly matches the corresponding observed best fit value, while it is higher for the toroidal-fields case. For the bursts without abrupt PA rotation(s), the predicted PDs of the aligned-fields case and the toroidal-fields case are comparable and could interpret the observational data equally well. For GRB 170206A, its observed time-resolved and time-integrated PDs are comparable and both smaller than our predicted upper limits in ordered magnetic fields. So mixed magnetic fields, i.e., the magnetic fields with both ordered and random components, should be reside in the radiation regions of this burst. Except 1 out of the total 23 bursts, the predicted time-integrated PDs, which are around $\sim44\%$ for the aligned-fields case and around $49\%$ for the toroidal-fields case, are consistent with the corresponding observed values. Therefore, consistent with the former study, the models with synchrotron radiation in ordered magnetic fields could interpret most of the current polrization data within $1σ$ error bar.
description: 19 pages, 26 figures, 2 tables
OH as an Alternate Tracer for Molecular Gas: Quantity and Structure of Molecular Gas in W5
Creators: name: Engelke, Philip D.
name: Allen, Ronald J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report column densities of molecular gas in the W5 star-forming region as traced with OH 18-cm emission in a grid survey using the Green Bank Telescope. OH appears to trace a greater column density than does CO in 8 out of 15 cases containing OH emission detections; the two molecules trace the same column densities for the other 7 cases. OH and CO trace a similar morphology of molecular gas with a nearly one-to-one correspondence. The mass of molecular gas traced by OH in the portion of the survey containing OH emission is $1.7$ (+ 0.6 or - 0.2) $\times 10^4 M_{\odot}$, whereas the corresponding CO detections trace $9.9 \times 10^3 M_{\odot} (\pm 0.7) \times 10^3$. We find that for lines observed in absorption, calculations assuming uniform gas and continuum distributions underestimate column density values by 1 to 2 orders of magnitude, making them unreliable for our purposes. Modeling of this behavior in terms of OH cloud structure on a scale smaller than telescopic resolution leads us to estimate that the filling factor of OH gas is a few to 10 percent. Consideration of filling factor effects also results in a method of constraining the excitation temperature values. The total molecular gas content of W5 may be approximately two to three times what we report from direct measurement, because we excluded absorption line detections from the mass estimate.
description: Accepted for publication in the Astrophysical Journal
The Likely Near-Infrared Counterpart to the Anomalous X-Ray Pulsar 1E 1048.1-5937
Creators: name: Wang, Zhongxiang
name: Chakrabarty, Deepto
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report our discovery of the likely near-infrared counterpart to the anomalous X-ray pulsar (AXP) 1E1048.1-5937, using observations from the 6.5-m Baade (Magellan-I) telescope in Chile. We derived a precise position for the X-ray source using archival data from the Chandra X-Ray Observatory. This position is inconsistent with a position reported earlier from XMM-Newton, but we show that the originally reported XMM-Newton position suffered from attitude reconstruction problems. Only two of the infrared objects in a 17 arcsec x 17 arcsec field containing the target have unusual colors, and one of these has colors consistent with those of the identified counterparts of two other AXPs. The latter object is also the only source detected within the 0.6 arcsec Chandra error circle, and we identify it as the counterpart to 1E1048.1-5937. This is the first AXP counterpart detected in multiple infrared bands, with magnitudes J=21.7(3), H=20.8(3), and K=19.4(3). There is marginal evidence for spectral flattening at longer wavelengths.
description: 4 pages. Accepted for publication in ApJ Letters
Prediction of galaxy halo masses in SDSS DR7 via a machine learning approach
Creators: name: Calderon, Victor F.
name: Berlind, Andreas A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a machine learning (ML) approach for the prediction of galaxies' dark matter halo masses that achieves an improved performance over conventional methods. We train three ML algorithms (\texttt{XGBoost}, Random Forests, and neural network) to predict halo masses using a set of synthetic galaxy catalogues that are built by populating dark matter haloes in N-body simulations with galaxies, and that match both the clustering and the joint-distributions of properties of galaxies in the Sloan Digital Sky Survey (SDSS). We explore the correlation of different galaxy- and group-related properties with halo mass, and extract the set of nine features that contribute the most to the prediction of halo mass. We find that mass predictions from the ML algorithms are more accurate than those from halo abundance matching (\texttt{HAM}) or dynamical mass (\texttt{DYN}) estimates. Since the danger of this approach is that our training data might not accurately represent the real Universe, we explore the effect of testing the model on synthetic catalogues built with different assumptions than the ones used in the training phase. We test a variety of models with different ways of populating dark matter haloes, such as adding velocity bias for satellite galaxies. We determine that, though training and testing on different data can lead to systematic errors in predicted masses, the ML approach still yields substantially better masses than either \texttt{HAM}or \texttt{DYN}. Finally, we apply the trained model to a galaxy and group catalogue from the SDSS DR7 and present the resulting halo masses.
description: 13 pages, 8 Figures, submitted to MNRAS
title: Organisationsplan für den Fachbereich Mathematik, Informatik und Wirtschaftswissenschaften: Aufhebung des Instituts für Theoretische und Praktische Informatik unter gleichzeitiger Errichtung von drei neuen Instituten
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 1
Year: 1986
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 20
Effective approximation to complex algebraic numbers by quadratic numbers
Creators: name: Bajpai, Prajeet
name: Bugeaud, Yann
Publisher: name: arXiv
Year: 2024
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J68, 11J86

description: We establish an effective improvement on the Liouville inequality for approximation to complex non-real algebraic numbers by quadratic complex algebraic numbers.
description: To appear in the Canadian Mathematical Bulletin
title: Organisationsplan für den Fachbereich Mathematik, Informatik und Wirtschaftswissenschaften: Einrichtung des Instituts für Robotik und Prozessinformatik
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 1
Year: 1986
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 21
Phase Diagram of the Half-Filled Extended Hubbard Model in Two Dimensions
Creators: name: Chattopadhyay, Biplab
name: Gaitonde, D. M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider an extended Hubbard model of interacting fermions on a lattice. The fermion kinetic energy corresponds to a tight binding Hamiltonian with nearest neighbour (-t) and next nearest neighbour (t') hopping matrix elements. In addition to the onsite Hubbard interaction (U) we also consider a nearest neighbour repulsion (V). We obtain the zero temperature phase diagram of our model within the Hartree-Fock approximation. We consider ground states having charge and spin density wave ordering as well as states with orbital antiferromagnetism or spin nematic order. The latter two states correspond to particle-hole binding with $d_{x^2-y^2}$ symmetry in the charge and spin channels respectively. For $t' = 0$, only the charge density wave and spin density wave states are energetically stable. For non-zero t', we find that orbital antiferromagnetism (or spin nematic) order is stable over a finite portion of the phase diagram at weak coupling. This region of stability is seen to grow with increasing values of t'.
description: Latex file, 10 output pages, 3 Figures (available on request to biplab@hp1.saha.ernet.in), to appear in Phys. Rev. B (BR)
Canonical analysis of unimodular Plebański gravity
Creators: name: Gielen, Steffen
name: Nash, Elliot
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the canonical analysis of different versions of unimodular gravity defined in the Plebański formalism, based on a (generally complex) SO(3) spin connection and set of (self-dual) two-forms. As in the metric formulation of unimodular gravity, one can study either a theory with fixed volume form or work in a parametrised formalism in which the cosmological constant becomes a dynamical field, constrained to be constant by the field equations. In the first case, the Hamiltonian density contains a part which is not constrained to vanish, but rather constrained to be constant, again as in the metric formulation. We also discuss reality conditions and challenges in extracting Lorentzian solutions.
description: 10 pages, two-column revtex; v2: fixed typos, to appear in Phys. Rev. D; v3: more typos fixed
Breaking the mold: overcoming the time constraints of molecular dynamics on general-purpose hardware
Creators: name: Perez, Danny
name: Thompson, Aidan
name: Moore, Stan
name: Oppelstrup, Tomas
name: Sharapov, Ilya
name: Santos, Kylee
name: Sharifian, Amirali
name: Kalchev, Delyan Z.
name: Schreiber, Robert
name: Pakin, Scott
name: Leon, Edgar A.
name: Laros, James H.
name: James, Michael
name: Rajamanickam, Sivasankaran
Publisher: name: arXiv
Year: 2024
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The evolution of molecular dynamics (MD) simulations has been intimately linked to that of computing hardware. For decades following the creation of MD, simulations have improved with computing power along the three principal dimensions of accuracy, atom count (spatial scale), and duration (temporal scale). Since the mid-2000s, computer platforms have however failed to provide strong scaling for MD as scale-out CPU and GPU platforms that provide substantial increases to spatial scale do not lead to proportional increases in temporal scale. Important scientific problems therefore remained inaccessible to direct simulation, prompting the development of increasingly sophisticated algorithms that present significant complexity, accuracy, and efficiency challenges. While bespoke MD-only hardware solutions have provided a path to longer timescales for specific physical systems, their impact on the broader community has been mitigated by their limited adaptability to new methods and potentials. In this work, we show that a novel computing architecture, the Cerebras Wafer Scale Engine, completely alters the scaling path by delivering unprecedentedly high simulation rates up to 1.144M steps/second for 200,000 atoms whose interactions are described by an Embedded Atom Method potential. This enables direct simulations of the evolution of materials using general-purpose programmable hardware over millisecond timescales, dramatically increasing the space of direct MD simulations that can be carried out.
Optical properties of thin-film vanadium dioxide from the visible to the far infrared
Creators: name: Wan, Chenghao
name: Zhang, Zhen
name: Woolf, David
name: Hessel, Colin M.
name: Rensberg, Jura
name: Hensley, Joel M.
name: Xiao, Yuzhe
name: Shahsafi, Alireza
name: Salman, Jad
name: Richter, Steffen
name: Sun, Yifei
name: Qazilbash, M. Mumtaz
name: Schmidt-Grund, Rüdiger
name: Ronning, Carsten
name: Ramanathan, Shriram
name: Kats, Mikhail A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The insulator-to-metal transition (IMT) in vanadium dioxide (VO2) can enable a variety of optics applications, including switching and modulation, optical limiting, and tuning of optical resonators. Despite the widespread interest in optics, the optical properties of VO2 across its IMT are scattered throughout the literature, and are not available in some wavelength regions. We characterized the complex refractive index of VO2 thin films across the IMT for free-space wavelengths from 300 nm to 30 μm, using broadband spectroscopic ellipsometry, reflection spectroscopy, and the application of effective-medium theory. We studied VO2 thin films of different thickness, on two different substrates (silicon and sapphire), and grown using different synthesis methods (sputtering and sol gel). While there are differences in the optical properties of VO2 synthesized under different conditions, they are relatively minor compared to the change resulting from the IMT, most notably in the ~2 - 11 μm range where the insulating phase of VO2 has relatively low optical loss. We found that the macroscopic optical properties of VO2 are much more robust to sample-to-sample variation compared to the electrical properties, making the refractive-index datasets from this article broadly useful for modeling and design of VO2-based optical and optoelectronic components.
description: Main text + supplementary information
Black hole polarization and new entropy bounds
Creators: name: Bekenstein, Jacob D.
name: Mayo, Avraham E.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Zaslavskii has suggested how to tighten Bekenstein's bound on entropy when the object is electrically charged. Recently Hod has provided a second tighter version of the bound applicable when the object is rotating. Here we derive Zaslavskii's optimized bound by considering the accretion of an ordinary charged object by a black hole. The force originating from the polarization of the black hole by a nearby charge is central to the derivation of the bound from the generalized second law. We also conjecture an entropy bound for charged rotating objects, a synthesis of Zaslavskii's and Hod's. On the basis of the no hair principle for black holes, we show that this last bound cannot be tightened further in a generic way by knowledge of ``global'' conserved charges, e.g., baryon number, which may be borne by the object.
description: 21 pages, RevTex, Regularization of potential made clearer. Error in energy of the particle corrected with no consequence for final conclusions. New references added
title: Organisationsplan für den Erziehungswissenschaftlichen Fachbereich
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 9
Year: 1987
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 22
ZTF SN Ia DR2: An environmental study of Type Ia supernovae using host galaxy image decomposition
Creators: name: Senzel, R.
name: Maguire, K.
name: Burgaz, U.
name: Dimitriadis, G.
name: Rigault, M.
name: Goobar, A.
name: Johansson, J.
name: Smith, M.
name: Deckers, M.
name: Galbany, L.
name: Ginolin, M.
name: Harvey, L.
name: Kim, Y. -L.
name: Muller-Bravo, T. E.
name: Nugent, P.
name: Rosnet, P.
name: Sollerman, J.
name: Terwel, J. H.
name: Laher, R. R.
name: Reiley, D.
name: Rusholme, B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The second data release of Type Ia supernovae (SNe Ia) observed by the Zwicky Transient Facility has provided a homogeneous sample of 3628 SNe Ia with photometric and spectral information. This unprecedented sample size enables us to better explore our currently tentative understanding of the dependence of host environment on SN Ia properties. In this paper, we make use of two-dimensional image decomposition to model the host galaxies of SNe Ia. We model elliptical galaxies as well as disk/spiral galaxies with or without central bulges and bars. This allows for the categorisation of SN Ia based on their morphological host environment, as well as the extraction of intrinsic galaxy properties corrected for both cosmological and atmospheric effects. We find that although this image decomposition technique leads to a significant bias towards elliptical galaxies in our final sample of galaxies, the overall results are robust. By successfully modelling 728 host galaxies, we find that the photometric properties of SNe Ia found in disks and in elliptical galaxies, correlate fundamentally differently with their host environment. We identified strong linear relations between light-curve stretch and our model-derived galaxy colour for both the elliptical (16.8$σ$) and disk (5.1$σ$) subpopulations of SNe Ia. Lower stretch SNe Ia are found in redder environments, which we identify as an age/metallicity effect. Within the subpopulation of SNe Ia found in disk containing galaxies, we find a significant linear trend (6.1$σ$) between light-curve stretch and model-derived local $r$-band surface brightness, which we link to the age/metallicity gradients found in disk galaxies. SN Ia colour shows little correlation with host environment as seen in the literature. We identify a possible dust effect in our model-derived surface brightness (3.3$σ$), for SNe Ia in disk galaxies.
description: ZTF SN Ia DR2 release paper. Submitted to A&A (ZTF DR2 Special Issue)
Teutoniidae Koenike 1910
Creators: name: Pešić, Vladimir
name: Smit, Harry
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Teutoniidae

description: Family Teutoniidae Koenike, 1910  Diagnosis — Smit 2020: 268.
description: Published as part of Pešić, Vladimir & Smit, Harry, 2022, A new water mite species of the genus Teutonia Koenike, 1889 from Corsica, France, based on morphological data and DNA barcodes (Acari, Hydrachnidia, Teutoniidae), pp. 465-473 in Acarologia 62 (2) on page 468, DOI: 10.24349/8n5y-mw7l, http://zenodo.org/record/7160470
Simulating Non-Markovian Quantum Dynamics on NISQ Computers Using the Hierarchical Equations of Motion
Creators: name: Dan, Xiaohan
name: Geva, Eitan
name: Batista, Victor S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Quantum computing offers promising new avenues for tackling the long-standing challenge of simulating the quantum dynamics of complex chemical systems, particularly open quantum systems coupled to external baths. However, simulating such non-unitary dynamics on quantum computers is challenging since quantum circuits are specifically designed to carry out unitary transformations. Furthermore, chemical systems are often strongly coupled to the surrounding environment, rendering the dynamics non-Markovian and beyond the scope of Markovian quantum master equations like Lindblad or Redfield. In this work, we introduce a quantum algorithm designed to simulate non-Markovian dynamics of open quantum systems. Our approach enables the implementation of arbitrary quantum master equations on noisy intermediate-scale quantum (NISQ) computers. We illustrate the method as applied in conjunction with the numerically exact hierarchical equations of motion (HEOM) method. The effectiveness of the resulting quantum HEOM algorithm is demonstrated as applied to simulations of the non-Lindbladian electronic energy and charge transfer dynamics in models of the carotenoid-porphyrin-\ce{C60} molecular triad dissolved in tetrahydrofuran and the Fenna-Matthews-Olson complex.
description: 62 pages, 17 figures
title: Organisationsplan für den Fachbereich für Bauingenieur- und Vermessungswesen: Errichtung eines Instituts für Siedlungswasserwirtschaft
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Fachbereich 5
Year: 1987
Subjects: subject: Organisationsplan
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig, vol. 23
New Insights with XRISM & Cloudy: A novel Column Density Diagnostic
Creators: name: Gunasekera, Chamani M.
name: van Hoof, Peter A. M.
name: Tsujimoto, Masahiro
name: Ferland, Gary J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a simple, yet powerful column density diagnostic for plasmas enabled by X-ray microcalorimeter observations. With the recent developments of the spectral simulation code Cloudy, inspired by the high spectral resolution of the X-Ray Imaging and Spectroscopy Mission (XRISM) and the Advanced Telescope for High Energy Astrophysics (Athena), we make predictions for the intensity ratio of the resolved fine-structure lines Ly$α_1$ and Ly$α_2$ of H-like ions. We show that this ratio can be observationally constrained and used as a plasma column density indicator. We demonstrate this with a XRISM observation of the high-mass X-ray binary Centaurus X-3. This diagnostic is useful for a wide range of X-ray emitting plasmas, either collisionally or radiatively ionized.
description: 3 pages, 4 figures
Etoposide-induced DNA damage is increased in p53 mutants: identification of ATR and other genes that influence effects of p53 mutations on Top2-induced cytotoxicity
Creators: name: Menendez, Daniel
name: Anand, Jay R
name: Murphy, Carri C
name: Bell, Whitney J
name: Fu, Jiaqi
name: Slepushkina, Nadia
name: Buehler, Eugen
name: Martin, Scott E
name: Lal-Nag, Madhu
name: Nitiss, John
name: Resnick, Michael A
Publisher: name: University of Illinois at Chicago
Year: 2024
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 3211
subject: Oncology and carcinogenesis

description: The functional status of the tumor suppressor p53 is a critical component in determining the sensitivity of cancer cells to many chemotherapeutic agents. DNA topoisomerase II (Top2) plays essential roles in DNA metabolism and is the target of FDA approved chemotherapeutic agents. Topoisomerase targeting drugs convert the enzyme into a DNA damaging agent and p53 influences cellular responses to these agents. We assessed the impact of the loss of p53 function on the formation of DNA damage induced by the Top2 poison etoposide. Using human HCT116 cells, we found resistance to etoposide in cell growth assays upon the functional loss of p53. Nonetheless, cells lacking fully functional p53 were etoposide hypersensitive in clonogenic survival assays. This complex role of p53 led us to directly examine the effects of p53 status on topoisomerase-induced DNA damage. A deficiency in functional p53 resulted in elevated levels of the Top2 covalent complexes (Top2cc) in multiple cell lines. Employing genome-wide siRNA screens, we identified a set of genes for which reduced expression resulted in enhanced synthetic lethality upon etoposide treatment of p53 defective cells. We focused on one hit from this screen, ATR, and showed that decreased expression sensitized the p53-defective cells to etoposide in all assays and generated elevated levels of Top2cc in both p53 proficient and deficient cells. Our findings suggest that a combination of etoposide treatment with functional inactivation of DNA repair in p53 defective cells could be used to enhance the therapeutic efficacy of Top2 targeting agents.
The production of charged-kaon pairs in proton-antiproton collisions: The role of higher-twist mechanism
Creators: name: Demirci, M.
name: Ahmadov, A. I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The higher-twist (HT) contribution to the charged kaon pair production in the high energy proton-antiproton collisions at large transverse momentum $p_T$ is investigated by using the frozen coupling constant approach for various kaon distribution amplitudes (DAs), which are predicted by light-cone formalism, the light-front quark model, the nonlocal chiral quark model and the light-front holographic AdS/CFT approach. In the numerics the dependencies of the HT contribution on the transverse momentum $p_T$, the rapidity $y$, and the variable $x_T$ are discussed with special emphasis put on DAs. The HT contribution is also compared with the leading-twist ones. It is shown that the HT contributions are dependent on the kaon DAs and also some other phenomenological parameters such as momentum cut-off parameter $Δp$. Inclusive kaon pair production presents a remarkable test case in which HT terms dominate those of LT in certain kinematic regions. The HT direct production process via gluon-gluon fusion contributes significantly to the inclusive cross section at large $p_T$.
description: 14 pages, 10 figures, 3 tables
title: Ordnung über das Verfahren zur Feststellung der besonderen künstlerischen Befähigung für den Lehramtsstudiengang mit dem Fach Musik an der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig
Year: 1987
Subjects: subject: Ordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig
BPS black holes in N=2 five dimensional AdS supergravity
Creators: name: Behrndt, K.
name: Chamseddine, A. H.
name: Sabra, W. A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: BPS black hole solutions of U(1) gauged five-dimensional supergravity are obtained by solving the Killing spinor equations. These extremal static black holes live in an asymptotic AdS_5 space time. Unlike black holes in asymptotic flat space time none of them possess a regular horizon. We also calculate the influence, of a particular class of these solutions, on the Wilson loops calculation.
description: 8 pages, 1 figure, LaTeX, corrected the potential
Optical vs electronic gap of hafnia by ab initio Bethe-Salpeter equation
Creators: name: Sklénard, Benoît
name: Dragoni, Alberto
name: Triozon, François
name: Olevano, Valerio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present first-principles many-body perturbation theory calculations of the quasiparticle electronic structure and of the optical response of HfO$_2$ polymorphs. We use the $GW$ approximation including core electrons by the projector augmented wave (PAW) method and performing a quasiparticle self-consistency also on wavefunctions (QS$GW$). In addition, we solve the Bethe-Salpeter equation on top of $GW$ to calculate optical properties including excitonic effects. For monoclinic HfO$_2$ we find a fundamental band gap of $E_g = 6.33$ eV (with the direct band gap at $E_g^d = 6.41$ eV), and an exciton binding energy of 0.57 eV, which situates the optical gap at $E^o_g = 5.85$ eV. The latter is in the range of spectroscopic ellipsometry (SE) experimental estimates (5.5-6 eV), whereas our electronic band gap is well beyond experimental photoemission (PE) estimates ($< 6$ eV) and previous $GW$ works. Our calculated density of states and optical absorption spectra compare well to raw PE and SE spectra. This suggests that our predictions of both optical and electronic gaps are close to, or at least lower bounds of, the real values.
description: 7 pages, 8 figures, 4 tables
Possibility of BCS-BEC crossover in $κ$-type organic superconductors
Creators: name: Watanabe, Hiroshi
name: Ikeda, Hiroaki
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The realization of BCS-BEC crossover in superconductors, which smoothly connects Bardeen-Cooper-Schrieffer (BCS) theory with Bose-Einstein Condensation (BEC) in fermion systems, is an intriguing recent topic in strongly correlated electron systems. The organic superconductor $κ$-(BEDT-TTF)$_4$Hg$_{2.89}$Br$_8$ ($κ$-HgBr) under pressure is one of the leading candidates, owing to its unique metallic spin-liquid nature and tunable electron correlation. We theoretically investigate the extended Hubbard model for $κ$-HgBr and discuss the possibility of the BCS-BEC crossover by systematically calculating superconducting correlation function, coherence length, superfluid weight, and chemical potential. Our findings show that the BCS-BEC crossover can be observed when competing phases, such as Mott insulators and charge and/or spin orders, are suppressed by appropriate hole doping. $κ$-HgBr is just the case because both the Mott insulating phase and magnetic orders are absent due to its nonstoichiometric Hg composition and geometrical frustration. We further propose that other $κ$-type organic superconductors could serve as potential candidates of the BCS-BEC crossover if their band fillings and degree of geometrical frustration are systematically tuned.
description: 10 pages, 7 figures
The influence of dynamical change of optical properties on the thermomechanical response and damage threshold of noble metals under femtosecond laser irradiation
Creators: name: Tsibidis, George D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a theoretical investigation of the dynamics of the dielectric constant of noble metals following heating with ultrashort pulsed laser beams and the influence of the temporal variation of the associated optical properties in the thermomechanical response of the material. The effect of the electron relaxation time on the optical properties based on the use of a critical point model is thoroughly explored for various pulse duration values (i.e. from 110fs to 8ps). The proposed theoretical framework correlates the dynamical change of optical parameters, relaxation processes and induced strains-stresses. Simulations are presented by choosing gold as a test material and we demonstrate that the consideration of the aforementioned factors leads to significant thermal effect changes compared to results when static parameters are assumed. The proposed model predicts a substantially smaller damage threshold and a large increase of the stress which firstly underlines the significant role of the temporal variation of the optical properties and secondly enhances its importance with respect to the precise determination of laser specifications in material micromachining techniques.
description: arXiv admin note: text overlap with arXiv:1611.03207
First-Principles Calculations of the Near-Edge Optical Properties of \b{eta}-Ga2O3
Creators: name: Mengle, Kelsey A.
name: Shi, Guangsha
name: Bayerl, Dylan
name: Kioupakis, Emmanouil
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use first-principles calculations based on many-body perturbation theory to investigate the near-edge electronic and optical properties of \b{eta}-Ga2O3. The fundamental band gap is indirect, but the minimum direct gap is only 29 meV higher in energy, which explains the strong near-edge absorption. Our calculations verify the anisotropy of the absorption onset and explain the range (4.4-5.0 eV) of experimentally reported band-gap values. Our results for the radiative recombination rate indicate that intrinsic light emission in the deep-UV range is possible in this indirect-gap semiconductor at high excitation. Our work demonstrates the applicability of \b{eta}-Ga2O3 for deep-UV detection and emission.
Simplicial minisuperspace models in the presence of a scalar field
Creators: name: da Silva, C. Correia
name: Williams, R. M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We generalize simplicial minisuperspace models associated with restricting the topology of the universe to be that of a cone over a closed connected combinatorial $3-$manifold by considering the presence of a massive scalar field. By restricting all the interior edge lengths and all the boundary edge lengths to be equivalent and the scalar field to be homogenous on the $3-$space, we obtain a family of two dimensional models that include some of the most relevant triangulations of the spatial universe. After studying the analytic properties of the action in the space of complex edge lengths we determine its classical extrema. We then obtain steepest descents contours of constant imaginary action passing through Lorentzian classical geometries yielding a convergent wavefunction of the universe, dominated by the contributions coming from these extrema. By considering these contours we justify semiclassical approximations based on those classical solutions, clearly predicting classical spacetime in the late universe. These wavefunctions are then evaluated numerically. For all of the models examined we find wavefunctions predicting Lorentzian oscillatory behaviour in the late universe.
description: 33 pages with 12 figures. To be published in Classical and Quantum Gravity
title: Genehmigung zur Änderung der Wahlordnung für die Wahlen zum Studentenparlament und zu den Fachräten und Fachschaftsräten der Studentenschaft der Technischen Universität Braunschweig
Creators: name: :None
Publisher: name: Technische Universität Braunschweig, Studentenschaft
Year: 1987
Subjects: subject: Wahlordnung
subject: 379

description: Hochschulöffentliche Bekanntmachungen der Technischen Universität Braunschweig
Design and Implementation of Three-phase Voltage and Current Transducers for Digital Signal Processing TMS320F28335
Creators: name: Hafeez, Muhammad
Publisher: name: figshare
Year: 2021
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The intention of this paper is to design and implement a hardware prototype of the three-phase measurement board for digital signal processing (DSP) TMS320F28335 experimental kits. The voltage (LV 25-P) and current (LA 25-NP) transducers from LEM were used in this research. The characteristic of the voltage waveform, its amplitude, phase-angle and phase sequence are vital parameters for effective PV-grid synchronization. A signal conditioning circuit made of a summing operational amplifier (TL082) was used to provide an offset voltage to the generated bipolar signal waveforms from both transducers. A details design calculations and analysis for each section of the proposed system are also presented. The result shows that the implementation of voltage (LV 25-P) and current (LA 25-NP) transducers together with a signal conditioning circuit able to achieve essential voltage levels that comply with DSP TMS320F28335 ADC’s requirements
Detecting clusters and groups of galaxies populating the local Universe in large optical spectroscopic surveys
Creators: name: Marini, I.
name: Popesso, P.
name: Dolag, K.
name: Bravo, M.
name: Robotham, A.
name: Tempel, E.
name: Li, Q.
name: Yang, X.
name: Csizi, B.
name: Behroozi, P.
name: Biffi, V.
name: Biviano, A.
name: Lamer, G.
name: Malavasi, N.
name: Mazengo, D.
name: Toptun, V.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Wide-field cosmological surveys provide hundreds of thousands of spectroscopically confirmed galaxy groups and clusters, valuable for tracing baryonic matter distribution. However, controlling systematics in identifying host dark matter halos and estimating their properties is crucial. We evaluate three group detection methods on a simulated dataset replicating the GAMA selection to understand systematics and selection effects. This is key for interpreting data from SDSS, GAMA, DESI, WAVES, and leveraging optical catalogues in the (X-ray) eROSITA era to quantify baryonic mass in galaxy groups. Using a lightcone from the Magneticum hydrodynamical simulation, we simulate a spectroscopic galaxy survey in the local Universe (down to $z<0.2$ and stellar mass completeness $M_{\star}\geq10^{9.8} M_{\odot}$). We assess completeness and contamination of reconstructed halo catalogues, evaluate membership accuracy, and analyse the halo mass recovery rate of group finders. All three group finders achieve high completeness ($>80\%$) at group and cluster scales, confirming optical selection's suitability for dense regions. Contamination at low masses ($M_{200}<10^{13} M_{\odot}$) arises from interlopers and fragmentation. Membership is at least 70\% accurate above the group mass scale, but inaccuracies bias halo mass estimates using galaxy velocity dispersion. Alternative proxies, like total stellar luminosity or mass, yield more accurate halo masses. The cumulative luminosity function of galaxy members matches predictions, showing the group finders' accuracy in identifying galaxy populations. These results confirm the reliability and completeness of spectroscopic catalogues produced by state-of-the-art group finders. This supports studies requiring large spectroscopic samples of galaxy groups and clusters, as well as investigations into galaxy evolution across diverse environments.
description: submitted to A&A, 17 pages, 9 figures. Abstract reduced for ArXiv submission
Black Hole Binary Formation in the Expanding Universe --- Three Body Problem Approximation ---
Creators: name: Ioka, Kunihito
name: Chiba, Takeshi
name: Tanaka, Takahiro
name: Nakamura, Takashi
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study black hole MACHO binary formation through three-body interactions in the early universe at $t\sim 10^{-5}$s. The probability distribution functions of the eccentricity and the semimajor axis of binaries as well as of the coalescence time are obtained assuming that the black holes are randomly formed in space. We confirm that the previous order-of-magnitude estimate for the binary parameters is valid within $\sim 50%$ error. We find that the coalescence rate of the black hole MACHO binaries is $\sim 5 \times 10^{-2} \times 2^{\pm 1}$ events/year/galaxy taking into consideration several possible factors which may affect this estimate. This suggests that the event rate of coalescing binary black holes will be at least several events per year within 15 Mpc. The first LIGO/VIRGO interferometers in 2001 will be able to verify whether the MACHOs are black holes or not.
description: Revtex, 25 pages, 10 figures, to appear in PRD
Teutonia Koenike 1889
Creators: name: Pešić, Vladimir
name: Smit, Harry
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Teutoniidae
Teutonia

description: Genus Teutonia Koenike, 1889   Diagnosis — Smit 2020: 269.
description: Published as part of Pešić, Vladimir & Smit, Harry, 2022, A new water mite species of the genus Teutonia Koenike, 1889 from Corsica, France, based on morphological data and DNA barcodes (Acari, Hydrachnidia, Teutoniidae), pp. 465-473 in Acarologia 62 (2) on page 468, DOI: 10.24349/8n5y-mw7l, http://zenodo.org/record/7160470
Fast High-Dimensional Bilateral and Nonlocal Means Filtering
Creators: name: Nair, Pravin
name: Chaudhury, Kunal. N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Existing fast algorithms for bilateral and nonlocal means filtering mostly work with grayscale images. They cannot easily be extended to high-dimensional data such as color and hyperspectral images, patch-based data, flow-fields, etc. In this paper, we propose a fast algorithm for high-dimensional bilateral and nonlocal means filtering. Unlike existing approaches, where the focus is on approximating the data (using quantization) or the filter kernel (via analytic expansions), we locally approximate the kernel using weighted and shifted copies of a Gaussian, where the weights and shifts are inferred from the data. The algorithm emerging from the proposed approximation essentially involves clustering and fast convolutions, and is easy to implement. Moreover, a variant of our algorithm comes with a guarantee (bound) on the approximation error, which is not enjoyed by existing algorithms. We present some results for high-dimensional bilateral and nonlocal means filtering to demonstrate the speed and accuracy of our proposal. Moreover, we also show that our algorithm can outperform state-of-the-art fast approximations in terms of accuracy and timing.
description: This work is accepted in IEEE Transactions on Image Processing