cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Averaged null energy condition violation in a conformally flat spacetime
Creators: name: Urban, Douglas
name: Olum, Ken D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the averaged null energy condition can be violated by a conformally coupled scalar field in a conformally flat spacetime in 3+1 dimensions. The violation is dependent on the quantum state and can be made as large as desired. It does not arise from the presence of anomalies, although anomalous violations are also possible. Since all geodesics in conformally flat spacetimes are achronal, the achronal averaged null energy condition is likewise violated.
description: 11 pages
Taming lattice artifacts with Pauli--Villars fields
Creators: name: Hasenfratz, Anna
name: Shamir, Yigal
name: Svetitsky, Benjamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: As fermions are added to a lattice gauge theory, one is driven to stronger bare coupling in order to maintain the same renormalized coupling. Stronger bare couplings are usually associated with larger gauge fluctuations, leading to larger cutoff effects and more expensive simulations. In theories with many light fermions, sometimes the desired physical region cannot be reached before encountering a phase boundary. We show that these undesired effects can be reduced by adding Pauli--Villars fields. We reach significantly larger renormalized couplings while at the same time damping short-distance fluctuations of the gauge field. This may allow for controlled continuum extrapolations from large lattice spacings.
description: 7 pages, 4 figures
The GLEAMing of the first supermassive black holes
Creators: name: Broderick, Jess
Publisher: name: Zenodo
Year: 2021

description: High-redshift radio galaxies (HzRGs) are vital laboratories for studying massive galaxy formation and evolution in the early Universe (see review by Miley & De Breuck, 2008, A&ARv, 15, 67). We have developed a new selection technique for finding these rare, powerful systems at z > 5, making use of spectral curvature in the Murchison Widefield Array (MWA) 70-230 MHz GLEAM survey (Hurley-Walker et al., 2017, MNRAS, 464, 1146). In a pilot study of four sources, we have discovered the second-most distant radio galaxy currently known (z=5.55; Drouart et al. 2020, PASA, 37, e026), with the exciting possibility that a second source is also at high redshift (currently being followed up with approved HST time).

 In this talk, I will give an overview of our pilot study, as well as ongoing work to expand our technique to a new sample of 90 HzRG candidates in the ESO VIKING near-infrared survey area. Our goal is to build a sample of Type 2 radio-loud active galactic nuclei at z > 6.5 during the Epoch of Reionization, thereby allowing us to study the co-evolution of the supermassive black hole and host galaxy during the first billion years of the Universe. This is very much a multi-wavelength project, making use of data from a variety of telescopes (e.g. MWA, VISTA, ALMA, VLT, and ATCA), and I will conclude with some thoughts on the scientific possibilities and synergies offered by the next generation of multi-wavelength facilities for the field of HzRG research.
Virgichneumon krapinensis
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Virgichneumon
Virgichneumon krapinensis

description: Virgichneumon krapinensis (SCHMIEDEKNECHT, 1928)
M a t e r i a l e x a m i n e d: Trap 7: 1♁ 5-20.v.; trap 8: 1♀ 15-29.vi.
D i s t r i b u t i o n: Western Palaearctic, known from the Caucasus region (RASNITSYN & SIYTAN 1981), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 107, DOI: 10.5281/zenodo.10415120
Exact many-electron ground states on diamond and triangle Hubbard chains
Creators: name: Gulacsi, Zsolt
name: Kampf, Arno
name: Vollhardt, Dieter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We construct exact ground states of interacting electrons on triangle and diamond Hubbard chains. The construction requires (i) a rewriting of the Hamiltonian into positive semidefinite form, (ii) the construction of a many-electron ground state of this Hamiltonian, and (iii) the proof of the uniqueness of the ground state. This approach works in any dimension, requires no integrability of the model, and only demands sufficiently many microscopic parameters in the Hamiltonian which have to fulfill certain relations. The scheme is first employed to construct exact ground state for the diamond Hubbard chain in a magnetic field. These ground states are found to exhibit a wide range of properties such as flat-band ferromagnetism and correlation induced metallic, half-metallic or insulating behavior, which can be tuned by changing the magnetic flux, local potentials, or electron density. Detailed proofs of the uniqueness of the ground states are presented. By the same technique exact ground states are constructed for triangle Hubbard chains and a one-dimensional periodic Anderson model with nearest-neighbor hybridization. They permit direct comparison with results obtained by variational techniques for f-electron ferromagnetism due to a flat band in CeRh3B2.
description: 21 pages, 9 figures. Will be published in the proceedings of YKIS2007 conference (November 2007, Kyoto) as a special issue of Progress of Theoretical Physics Supplement. Fig.6 corrected
Existence and uniqueness of solutions to systems of delay dynamic equations on time scales
Creators: name: Karpuz, Basak
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 39A10, 34C10

description: The purpose of this paper is to establish Picard-Lindelöf theorem for local uniqueness and existence results for first-order systems of nonlinear delay dynamic equations. In the linear case, we extend our results to global existence and uniqueness of solutions on the entire interval (allowed to be unbounded above), and prove the variation of parameters formula for the unique solution in terms of the principal solution. A simple example concerning the ordinary case is also provided.
description: 15 pages
Spin relaxation due to random Rashba spin-orbit coupling in GaAs (110) quantum wells
Creators: name: Zhou, Y.
name: Wu, M. W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the spin relaxation due to the random Rashba spin-orbit coupling in symmetric GaAs (110) quantum wells from the fully microscopic kinetic spin Bloch equation approach. All relevant scatterings, such as the electron-impurity, electron--longitudinal-optical-phonon, electron--acoustic-phonon, as well as electron-electron Coulomb scatterings are explicitly included. It is shown that our calculation reproduces the experimental data by Müller {\em et al.} [Phys. Rev. Lett. {\bf 101}, 206601 (2008)] for a reasonable choice of parameter values. We also predict that the temperature dependence of spin relaxation time presents a peak in the case with low impurity density, which originates from the electron-electron Coulomb scattering.
description: 5 pages, 2 figures, EPL in press
Additional file 1 of 4D genetic networks reveal the genetic basis of metabolites and seed oil-related traits in 398 soybean RILs
Creators: name: Han, Xu
name: Zhang, Ya-Wen
name: Liu, Jin-Yang
name: Zuo, Jian-Fang
name: Zhang, Ze-Chang
name: Guo, Liang
name: Zhang, Yuan-Ming
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Phenotypic characteristics for seed oil-related traits in 398 soybean RILs. Table S2. Phenotypic characteristics for 59 metabolites in 398 soybean RILs. Table S3. Phenotypic characteristics for 107 lipids in 398 soybean RILs. Table S4. Associations between oil-related traits and metabolites in 398 soybean RILs identified using the minimax concave penalty and smoothly clipped absolute deviation methods. Table S5. Associations between oil-related traits and lipids in 398 soybean RILs identified using the minimax concave penalty and smoothly clipped absolute deviation methods. Table S6. Associations between metabolites and metabolites, between metabolites and lipids, and between lipids and lipids in 398 soybean RILs identified using the Gaussian graphical model. Table S8. 175 QTLs for seed oil-related traits, their candidate genes, and miRNAs identified using multiple methods or across multiple environments. Table S9. 36 significant QTL-by-environment interactions for seed oil-related traits and their candidate genes. Table S10. miRNAs and their targeted acyl-lipid genes, predicted via psRNAtarget, Target Finder, and psRobot, around QTLs for seed oil-related traits. Table S11. Co-expression Pearson correlation coefficient among all the candidate genes in GRN. Table S12. Candidate genes for seed oil-related traits and their promoter sequences matched to motifs of miRNA-targeted TFs predicted via software FIMO. Table S15. 302 mQTL clusters for metabolites and lipids, their candidate genes, and miRNAs. Table S16. Co-located QTLs and their candidate genes for oil-related traits and metabolites/lipids. Table S17 miRNAs and their targeted acyl-lipid genes, predicted via psRNAtarget, Target Finder, and psRobot, around mQTLs for metabolites and lipids. Table S18. Candidate genes for metabolites/lipids and their promoter sequences matched to motif of miRNA-targeted TFs predicted via software FIMO. Table S19. 147 significant PPIs among candidate genes for seed oil-related traits, metabolites, and lipids. Table S20. Topologic characteristics of nodes in multi-dimensional genetic networks. Table S21. 128 3D and 4D sub-networks for seed oil-related traits, metabolites, lipids, candidate genes, TFs, and miRNAs. Table S22. Common metabolites, candidate genes, trait–gene associations in this and previous studies [55].
A Positive-Weight Next-to-Leading Order Monte Carlo Simulation of Drell-Yan Vector Boson Production
Creators: name: Hamilton, Keith
name: Richardson, Peter
name: Tully, Jon
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The positive weight next-to-leading-order (NLO) matching scheme (POWHEG) is applied to Drell-Yan vector boson production in the Herwig++ Monte Carlo event generator. This approach consistently combines the NLO calculation and parton shower simulation, without the production of negative weight events. The simulation includes a full implementation of the truncated shower required to correctly describe soft emissions in an angular-ordered parton shower, for the first time. The results are compared with Tevatron W and Z production data and predictions for the transverse momentum spectrum of gauge bosons at the LHC presented.
description: 27 pages
Virgichneumon monostagon
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Virgichneumon
Virgichneumon monostagon

description: Virgichneumon monostagon (GRAVENHORST, 1820)
M a t e r i a l e x a m i n e d: Trap7:1♁25-29.vi.
D i s t r i b u t i o n: Transpalaearctic, known from Azerbaijan (ALIYEV 1999), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 107, DOI: 10.5281/zenodo.10415120
Atomic diffusion and mixing in old stars II. Observations of stars in the globular cluster NGC 6397 with VLT/FLAMES-GIRAFFE
Creators: name: Lind, K.
name: Korn, A. J.
name: Barklem, P. S.
name: Grundahl, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Evolutionary trends in the surface abundances of heavier elements have recently been identified in the globular cluster NGC 6397 ([Fe/H]=-2), indicating the operation of atomic diffusion in these stars. Such trends constitute important constraints for the extent to which diffusion modifies the internal structure and surface abundances of solar-type, metal-poor stars. We perform an independent check of the reality and size of abundance variations within this metal-poor globular cluster. Observational data covering a large stellar sample, located between the cluster turn-off point and the base of the red giant branch, are homogeneously analysed. The spectroscopic data were obtained with the medium-high resolution spectrograph FLAMES/GIRAFFE on VLT-UT2. We derive independent effective-temperature scales from profile fitting of Balmer lines and by applying colour-temperature calibrations to Strömgren uvby and broad-band BVI photometry. An automated spectral analysis code is used together with a grid of MARCS model atmospheres to derive stellar surface abundances of Mg, Ca, Ti, and Fe. We identify systematically higher iron abundances for more evolved stars. The turn-off point stars are found to have 0.13dex lower surface abundances of iron compared to the coolest, most evolved stars in our sample. There is a strong indication of a similar trend in magnesium, whereas calcium and titanium abundances are more homogeneous. Within reasonable error limits, the obtained abundance trends are in agreement with the predictions of stellar structure models including diffusive processes (sedimentation, levitation), if additional turbulent mixing below the outer convection zone is included.
description: 11 pages + appendix 6 pages, 9 figures. Accepted for publication in A&A
Pasteurella multocida toxin disrupts the respiratory epithelial barrier by utilizing the T-type voltage-gated Ca2+ channel CaV3.1 as a candidate receptorPasteurella multocida toxin disrupts the respiratory epithelial barrier by utilizing the T-type voltage-gated Ca2+ channel CaV3.1 as a candidate receptor
Creators: name: Peng, Zhong
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 300903
subject: Veterinary bacteriology

description: Pasteurella multocida toxin (PMT) is an exotoxin produced by several members of the zoonotic respiratory pathogen P. multocida. The role of PMT in disrupting the mammalian respiratory barrier remains to be elucidated. In this study, we discovered that inoculation of recombinantly expressed PMT increased the permeability of the respiratory epithelial barrier in mouse and respiratory cell models. This was evidenced by a decreased expression of tight junctions (ZO-1, occludin) and adherens junctions (β-catenin, E-cadherin), as well as enhanced cytoskeletal rearrangement. In mechanism, we demonstrated that PMT inoculation induced cytoplasmic Ca2+ inflow, leading to an imbalance of cellular Ca2+ homeostasis and endoplasmic reticulum stress. This process further stimulated the RhoA/ROCK signaling, promoting cytoskeletal rearrangement and reducing the expression of tight junctions and adherens junctions. Notably, the T-type voltage-gated Ca2+ channel CaV3.1 was found to participate in PMT-induced cytoplasmic Ca2+ inflow. Knocking out CaV3.1 significantly reduced the cytotoxicity induced by PMT on swine respiratory epithelial cells and mitigated cytoplasmic Ca2+ inflow stimulated by PMT. Further analysis identified Ser (aa92), Glu (aa155), Tyr (aa167), and Leu (aa448) as crucial sites utilized by PMT to interact with CaV3.1. These findings suggest CaV3.1 serves as an important host receptor of PMT and contributes to PMT-induced respiratory epithelial barrier disruption.
Development of a DHA-Losartan hybrid as a potent inhibitor of multiple pathway-induced platelet aggregation
Creators: name: Tsiailanis, Antonis D.
name: Vrettos, Eirinaios I.
name: Choleva, Maria
name: Kiriakidi, Sofia
name: Ganai, Ab Majeed
name: Patha, Tabasum Khan
name: Karpoormath, Rajshekhar
name: Mavromoustakos, Thomas
name: Fragopoulou, Elizabeth
name: Tzakos, Andreas G.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Despite the scientific progression in the prevention and treatment of cardiovascular diseases (CVDs) they remain the leading cause of mortality and disability worldwide. The classic treatment involves the simultaneous dosing of two antiplatelet drugs, aspirin and clopidogrel/prasugrel. However, besides drug resistance, severe side effects have been also manifested including acute bleeding and toxicity. Thus, new therapeutic agents with enhanced efficacy and diminished side effects are of importance. Towards this end, omega-3 (ω-3) fatty acids have demonstrated potent efficacy against CVDs through inhibiting platelet aggregation that bears a pivotal role in atherothrombosis. Another factor that displays a critical role in the pathogenesis of cardiovascular diseases is the renin-angiotensin system (RAS), and especially the AT1R blocker losartan that has been reported to exert antiplatelet activity mediated by this receptor. Along these lines, we envisaged developing a molecular hybrid consisted of docosahexaenoic acid (ω-3 fatty acid) and losartan, that could exert a notable antiplatelet effect against CVDs. The design and synthesis of the new DHA-losartan hybrid, designated DHA-L, bestowed with the additive properties of the parent compounds, is reported. In silico studies were first exploited to validate the potential of DHA-L to retain losartan’s ability to bind AT1R. The antiplatelet activity of DHA-L was evaluated against in vitro platelet aggregation induced by several platelet agonists. Notably, the hybrid illustrated a pleiotropic antiplatelet profile inhibiting platelet aggregation through multiple platelet activation pathways including P2Y12, PAR-1 (Protease-Activated Receptor-1), PAF (Platelet Activating Factor), COX-1 (cyclooxygenase-1) and collagen receptors. The stability of DHA-L in human plasma and in a wide range of pH values was also evaluated over time using an HPLC protocol. The hybridization approach described herein could pave the way for the development of novel potent multitargeted therapeutics with enhanced antiplatelet profile. Communicated by Ramaswamy H. Sarma
Common Features in Electronic Structure of the Fe-Based Layered Superconductors from Photoemission Spectroscopy
Creators: name: Jia, Xiaowen
name: Liu, Haiyun
name: Zhang, Wentao
name: Zhao, Lin
name: Meng, Jianqiao
name: Liu, Guodong
name: Dong, Xiaoli
name: Chen, G. F.
name: Luo, J. L.
name: Wang, N. L.
name: Ren, Z. A.
name: Yi, Wei
name: Yang, Jie
name: Lu, Wei
name: Che, G. C.
name: Wu, G.
name: Liu, R. H.
name: Chen, X. H.
name: Wang, Guiling
name: Zhou, Yong
name: Zhu, Yong
name: Wang, Xiaoyang
name: Zhao, Zhongxian
name: Xu, Zuyan
name: Chen, Chuangtian
name: Zhou, X. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: High resolution photoemission measurements have been carried out on non-superconducting LaOFeAs parent compound and various superconducting R(O1-xFx)FeAs (R=La, Ce and Pr) compounds. We found that the parent LaOFeAs compound shows a metallic character. Through extensive measurements, we have identified several common features in the electronic structure of these Fe-based compounds: (1). 0.2 eV feature in the valence band; (2). A universal 13~16 meV feature; (3). A clear Fermi cutoff showing zero leading-edge shift in the superconducting state;(4). Lack of superconducting coherence peak(s); (5). Near EF spectral weight suppression with decreasing temperature. These universal features can provide important information about band structure, superconducting gap and pseudogap in these Fe-based materials.
description: 5 pages,4 figures
A moving boundary problem motivated by electric breakdown: I. Spectrum of linear perturbations
Creators: name: Tanveer, Saleh
name: Schaefer, Lothar
name: Brau, Fabian
name: Ebert, Ute
Publisher: name: arXiv
Year: 2008
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: An interfacial approximation of the streamer stage in the evolution of sparks and lightning can be written as a Laplacian growth model regularized by a `kinetic undercooling' boundary condition. We study the linear stability of uniformly translating circles that solve the problem in two dimensions. In a space of smooth perturbations of the circular shape, the stability operator is found to have a pure point spectrum. Except for the zero eigenvalue for infinitesimal translations, all eigenvalues are shown to have negative real part. Therefore perturbations decay exponentially in time. We calculate the spectrum through a combination of asymptotic and series evaluation. In the limit of vanishing regularization parameter, all eigenvalues are found to approach zero in a singular fashion, and this asymptotic behavior is worked out in detail. A consideration of the eigenfunctions indicates that a strong intermediate growth may occur for generic initial perturbations. Both the linear and the nonlinear initial value problem are considered in a second paper.
description: 37 pages, 6 figures, revised for Physica D
Frobenius manifolds from regular classical $W$-algebras
Creators: name: Dinar, Yassir Ibrahim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37K10, 35D45

description: We obtain polynomial Frobenius manifolds from classical $W$-algebras associated to regular nilpotent elements in simple Lie algebras using the related opposite Cartan subalgebras.
Interaction of moderately reactive molecules with organic superhalogens: a theoretical perspective
Creators: name: Sarkar, Subhendu
name: Ash, Tamalika
name: Debnath, Tanay
name: Das, Abhijit K.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: The interaction of four moderately reactive molecules (MRMs), benzene (BZ), water, ammonia and silicon dioxide, with three aromatic organic superhalogens (OSHs) has been investigated at the density functional theory (DFT) level. The strength of the interaction is analysed from the distortions in the structures of both the MRMs and OSHs after complexation and the calculated binding energy (BE) values between the two interacting moieties. The interaction becomes stronger as we move from BZ to H2O to NH3 and strongest for SiO2 molecule. Contributions from different terms in total interaction energy have been examined by energy decomposition analysis (EDA). The charge flow values between MRMs and OSHs, and Mulliken spin density localised on the moderately reactive molecules have been evaluated to ensure whether the interaction is ionic or not. Atoms in Molecules (AIM) analysis has been performed to characterise the bonds formed between the two. Overall, our study gives a comprehensive account of the interaction between the moderately reactive molecules and three theoretically designed aromatic organic superhalogens, which will further motivate researchers in the field of superhalogen chemistry.
Chiral Symmetry and Heavy-Ion Collisions
Creators: name: Fukushima, Kenji
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I revisit the phase structure of hot and dense matter out of quarks and gluons with some historical consideration on the color deconfinement and chiral phase transitions. My goal is to make clear which part of the QCD phase diagram is under theoretical control and which part is not. I demonstrate that an uncommon but logically possible scenario other than the standard phase diagram cannot be ruled out. My emphasis is on the concern that one should correctly understand what kind of phenomenon occurs associated with the phase boundary line on the diagram. It is not quite obvious, in particular, where chiral symmetry restoration plays a phenomenological role in the temperature and baryon density plane except at the QCD (chiral) critical point.
description: Plenary talk at Quark Matter 2008: 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (QM 2008), Jaipur, India, 4-10 Feb 2008
Thermonuclear X-ray bursts from LMXB 4U 1636$-$536 observed with AstroSat
Creators: name: Roy, Pinaki
name: Beri, Aru
name: Bhattacharyya, Sudip
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report results obtained from the study of 12 thermonuclear X-ray bursts in 6 AstroSat observations of a neutron star X-ray binary and well-known X-ray burster, 4U 1636$-$536. Burst oscillations at $\sim$581 Hz are observed with 4$-$5$σ$ confidence in three of these X-ray bursts. The rising phase burst oscillations show a decreasing trend of the fractional rms amplitude at 3$σ$ confidence,by far the strongest evidence of thermonuclear flame spreading observed with AstroSat. During the initial 0.25 second of the rise a very high value (34.0$\pm$6.7%) is observed. The concave shape of the fractional amplitude profile provides a strong evidence of latitude-dependent flame speeds, possibly due to the effects of the Coriolis force. We observe decay phase oscillations with amplitudes comparable to that observed during the rising phase, plausibly due to the combined effect of both surface modes as well as the cooling wake. The Doppler shifts due to the rapid rotation of the neutron star might cause hard pulses to precede the soft pulses, resulting in a soft lag. The distance to the source estimated using the PRE bursts is consistent with the known value of $\sim$6 kpc.
description: 11 pages, 10 figures, 4 tables. Accepted for publication in MNRAS
Rational points of universal curves
Creators: name: Hain, Richard
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper we prove a version of Grothendieck's section conjecture for the restriction of the universal complete curve over M_{g,n}, g > 4, to the function field k(M_{g,n}) where k is, for example, a number field. In this version, the fundamental group of the closed fiber is replaced by its ell-adic unipotent completion when n > 1.
description: 60 pages. This is a minor revision of the previous version. To appear in JAMS
Regnskabsstatistik for fiskeri 2015
Creators: Danmarks Statistik
Publisher: name: Rigsarkivet
Year: 2022

description: Formålet med regnskabsstatistik for fiskeri er at belyse økonomien i fiskeriet. Statistikken anvendes til opgørelser og prognoser, samt som grundlag for indberetninger af økonomiske oplysninger for fiskeriet til EU.
Detectability of Gravitational Waves from Phase Transitions
Creators: name: Kahniashvili, Tina
name: Kosowsky, Arthur
name: Gogoberidze, Grigol
name: Maravin, Yurii
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gravitational waves potentially represent our only direct probe of the universe when it was less than one second old. In particular, first-order phase transitions in the early universe can generate a stochastic background of gravitational waves which may be detectable today. We briefly summarize the physical sources of gravitational radiation from phase transitions and present semi-analytic expressions for the resulting gravitational wave spectra from three distinct realistic sources: bubble collisions, turbulent plasma motions, and inverse-cascade helical magnetohydrodynamic turbulence. Using phenomenological parameters to describe phase transition properties, we determine the region of parameter space for which gravitational waves can be detected by the proposed Laser Interferometer Space Antenna. The electroweak phase transition is detectable for a wide range of parameters.
description: 9 pages, 11 figures, Eq. 9 and Fig. 1 corrected, conclusions unchanged, references added, PRD accepted
DFT approach on stability and conductance of nine different polyyne and cumulene molecules
Creators: name: Balakrishnan, AbhayRam
name: Shankar, R.
name: Vijayakumar, S.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Pharmacology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: Cumulene molecules are one of the main candidates for the use as molecular wires. Low bond length alternation (BLA) values are one of the main attractive property of cumulene molecules as it leads to high conductivity, whereas stability under normal conditions is the main problem. The study is aimed at achieving stable molecules with low BLA values by forcing cumulene structure in polyynes through substitution. Hence, we considered symmetric LCC molecules of n core carbon atoms (n = 4–12) with nine different terminal groups substitution such as hydrogen terminated polyynes (H[n]), phenyl terminated polyynes (Ph[n]), pyridine-capped polyynes Py[n], 3, 5-diphenyl pyridyl terminated polyynes (Py*[n]) their hydrogenated forms (H-Py[n] and H-Py*[n]), oxygen substituted phenyl terminated polyynes (O=Ph[n]) and 2, 4, 6-trimethylphenyl capped cumulenes (Mes[n]). The BLA values, transport barrier, excitation energy, reorganisation energy, energy gap and vertical and adiabatic ionisation energy were analysed to find the suitable molecule for molecular wires.
Modeling the H$α$ Emission Surrounding Spica using the Lyman Continuum from a Gravity-darkened Central Star
Creators: name: Aufdenberg, Jason P.
name: Hammill, Joseph M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The large, faint H$α$ emission surrounding the early B-star binary Spica has been used to constrain the total hydrogen recombination rate of the nebula and indirectly probe the Lyman continuum luminosity of the primary star. Early analysis suggested that a stellar atmosphere model, consistent with Spica A's spectral type, has a Lyman continuum luminosity about two times lower than required to account for the measured H$α$ surface brightness within the nebula. To more consistently model both the stellar and nebular emission, we have used a model atmosphere for Spica A which includes the effects of gravity darkening as input to photoionization models to produce synthetic H$α$ surface brightness distributions for comparison to data from the Southern $Hα$ Sky Survey Atlas (SHASSA). This paper presents a method for the computation of projected surface brightness profiles from 1D volume emissivity models and constrains both stellar and nebular parameters. A mean effective temperature for Spica A of $\simeq$ 24,800 K is sufficient to match both the observed absolute spectrophotometry, from the far-UV to the near-IR, and radial H$α$ surface brightness distributions. Model hydrogen densities increase with the distance from the star, more steeply and linearly towards the southeast. The northwest matter-bounded portion of the nebula is predicted to leak $\sim$17% of Lyman continuum photons. Model H II region column densities are consistent with archival observations along the line of sight.
description: 30 pages, 14 figures, 3 tables, accepted for publication in the Astrophysical Journal
Vulgichneumon bimaculatus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Vulgichneumon
Vulgichneumon bimaculatus

description: Vulgichneumon bimaculatus (SCHRANK, 1776)
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 1♁ 1-15.vi., 1♁ 27.vii.-10.viii., 1♁ 7-21.ix.; trap 7: 2♁♁ 5-20.v., 1♁ 20.v.-1.vi., 1♀ 1-25.vi., 1♁ 25-29.vi., 1♀ 13-27.vii., 1♀ 1♁ 27.vii.-10.viii., 1♀ 21.ix.-5.x.
D i s t r i b u t i o n: Transpalaearctic, known from Georgia (RIEDEL et al. 2018, RIEDEL & JAPOSHVILI 2021).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 107, DOI: 10.5281/zenodo.10415120
Entanglement of formation for an arbitrary two-mode Gaussian state
Creators: name: Marian, Paulina
name: Marian, Tudor A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We write the optimal pure-state decomposition of any two-mode Gaussian state and show that its entanglement of formation coincides with the Gaussian one. This enables us to develop an insightful approach of evaluating the exact entanglement of formation. Its additivity is finally proven.
description: Corrected typos
title: David Yao - Seattle COVID-19 Oral History Project - Oral History Transcript
Creators: name: Labor Archives of Washington
Publisher: name: Labor Archives of Washington
Year: 2021

description: Oral History interview with David Yao, postal clerk and vice president of American Postal Workers Union, Local 28, about working during the COVID-19 pandemic. Completed on November 21, 2021. This interview is part of the Working in the Time of COVID-19 Oral History Project by the Labor Archives of Washington, University of Washington Libraries. Laborarchives.org

This item contains three parts: oral history audio/video file, caption file (.srt), and full text transcription (.pdf).Â
A Novel and Efficient Method for Bacteria Genome Editing Employing both CRISPR_Cas9 and an Antibiotic Resistance Cassette
Creators: name: Zhang, Hong
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310508
subject: Genome structure and regulation
classificationCode: 310599
subject: Genetics not elsewhere classified
classificationCode: 310699
subject: Industrial biotechnology not elsewhere classified
classificationCode: 310701
subject: Bacteriology
classificationCode: 310704
subject: Microbial genetics
classificationCode: 409999
subject: Other engineering not elsewhere classified

description: As Cas9-mediated cleavage requires both protospacer and protospacer adjacent motif (PAM) sequences, it is impossible to employ the CRISPR/Cas9 system to directly edit genomic sites without available PAM sequences nearby. Here, we optimized the CRISPR/Cas9 system and developed an innovative two-step strategy for efficient genome editing of any sites, which did not rely on the availability of PAM sequences. An antibiotic resistance cassette was employed as both a positive and a negative selection marker. By integrating the optimized two-plasmid CRISPR/Cas system and donor DNA, we achieved gene insertion and point mutation with high efficiency in Escherichia coli, and importantly, obtained clean mutants with no other unwanted mutations. Moreover, genome editing of essential genes was successfully achieved using this approach with a few modifications. Therefore, our newly developed method is PAM-independent and can be used to edit any genomic loci, and we hope this method can also be used for efficient genome editing in other organisms.
Domain Wall Resistance in Perpendicular (Ga,Mn)As: dependence on pinning
Creators: name: Wang, K. Y.
name: Edmonds, K. W.
name: Irvine, A. C.
name: Wunderlich, J.
name: Olejnik, K.
name: Rushforth, A. W.
name: Campion, R. P.
name: Williams, D. A.
name: Foxon, C. T.
name: Gallagher, B. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated the domain wall resistance for two types of domain walls in a (Ga,Mn)As Hall bar with perpendicular magnetization. A sizeable positive intrinsic DWR is inferred for domain walls that are pinned at an etching step, which is quite consistent with earlier observations. However, much lower intrinsic domain wall resistance is obtained when domain walls are formed by pinning lines in unetched material. This indicates that the spin transport across a domain wall is strongly influenced by the nature of the pinning.
description: 9 pages, 3 figures
The role of the sun in the Pantheon's design and meaning
Creators: name: Hannah, Robert
name: Magli, Giulio
Publisher: name: arXiv
Year: 2009
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Despite being one of the most recognisable buildings from ancient Rome, the Pantheon is poorly understood. While its architecture has been well studied, its function remains uncertain. This paper argues that both the design and the meaning of the Pantheon are in fact dependent upon an understanding of the role of the sun in the building, and of the apotheosised emperor in Roman thought. Supporting evidence is drawn not only from the instruments of time in the form of the roofed spherical sundial, but also from other Imperial monuments, notably Nero's Domus Aurea and Augustus's complex of structures on the Campus Martius: his Ara Pacis, the "Horologium Augusti", and his Mausoleum. Hadrian's Mausoleum and potentially part of his Villa at Tivoli are drawn into this argument as correlatives. Ultimately, it is proposed that sun and time were linked architecturally into cosmological signposts for those Romans who could read such things.
description: Archaeoastronomy/History of Astronomy. Final version to appear in Numen - International Review for the History of Religions
Vulgichneumon saturatorius
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Vulgichneumon
Vulgichneumon saturatorius

description: Vulgichneumon saturatorius (LINNAEUS, 1758)
M a t e r i a l e x a m i n e d: Trap 4: 2♁♁ 5-20.v., 1♁ 20.v.-1.vi., 1♁ 1-15.vi., 1♀ 2♁♁ 15- 29.vi.; trap 7: 1♀ 1♁ 23.iv.-5.v., 1♁ 1-25.vi., 1♁ 29.vi.-13.vii.
 Remark: One ♁ with apical ivory stripe on 6 th tergite.
D i s t r i b u t i o n: Transpalaearctic, known from Azerbaijan (MEYER 1933a), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 107, DOI: 10.5281/zenodo.10415120
Bellman Function and the $H^1-BMO$ Duality
Creators: name: Slavin, Leonid
name: Volberg, Alexander
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B30, 42B35

description: A Bellman function approach to Fefferman's $H^1-BMO$ duality theorem is presented. One Bellman-type argument is used to handle two different one-dimensional cases, dyadic and continuous. An explicit estimate for the constant of embedding $BMO\subset (H^1)^*$ is given in the dyadic case. The same Bellman function is then used to establish a multi-dimensional analog.
description: 14 pages, 2 figures, final version
Fifteen new T dwarfs discovered in the UKIDSS Large Area Survey
Creators: name: Pinfield, D. J.
name: Burningham, B.
name: Tamura, M.
name: Leggett, S. K.
name: Lodieu, N.
name: Lucas, P. W.
name: Mortlock, D. J.
name: Warren, S. J.
name: Homeier, D.
name: Ishi, M.
name: Deacon, N. R.
name: McMahon, R. G.
name: Hewett, P. C.
name: Osorio, M. R. Zapatero
name: Martin, E. L.
name: Jones, H. R. A.
name: Venemans, B. P.
name: Day-Jones, A.
name: Dobbie, P. D.
name: Folkes, S. L.
name: Dye, S.
name: Allard, F.
name: Baraffe, I.
name: Navascues, D. Barrado y
name: Casewell, S. L.
name: Chiu, K.
name: Chabrier, G.
name: Clarke, F.
name: Hodgkin, S. T.
name: Magazzu, A.
name: McCaughrean, M. J.
name: Moraux, E.
name: Nakajima, T.
name: Pavlenko, Y.
name: Tinney, C. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the discovery of fifteen new T2.5-T7.5 dwarfs (with estimated distances between ~24-93pc, identified in the first three main data releases of the UKIRT Infrared Deep Sky Survey. This brings the total number of T dwarfs discovered in the Large Area Survey (to date) to 28. These discoveries are confirmed by near infrared spectroscopy, from which we derive spectral types on the unified scheme of Burgasser et al. (2006). Seven of the new T dwarfs have spectral types of T2.5-T4.5, five have spectral types of T5-T5.5, one is a T6.5p, and two are T7-7.5. We assess spectral morphology and colours to identify T dwarfs in our sample that may have non-typical physical properties (by comparison to solar neighbourhood populations). The colours of the full sample of LAS T dwarfs show a possible trend to bluer Y-J with decreasing effective temperature beyond T8. By accounting for the main sources of incompleteness (selection, follow-up and spatial) as well as the effects of unresolved binarity and Malmquist bias, we estimate that there are 17+-4 >=T4 dwarfs in the J<=19 volume of the LAS second data release. Comparing this to theoretical predictions is most consistent with a sub-stellar mass function exponent alpha between -1.0 and 0. This is consistent with the latest 2MASS/SDSS constraint (which is based on lower number statistics), and is significantly lower than the alpha~1.0 suggested by L dwarf field populations, possibly a result of the lower mass range probed by the T dwarf class.
description: 21 pages, 7 figures, submitted to MNRAS
A complete and minimal catalogue of MSSM gauge invariant monomials
Creators: name: Basboll, Anders
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a complete and minimal catalogue of MSSM gauge invariant monomials. That is, the catalogue of Gherghetta, Kolda and Martin is elaborated to include generational structure for all monomials. Any gauge invariant operator can be built as a linear combination of elements of the catalogue lifted to nonnegative integer powers. And the removal of any one of the monomials would deprive the catalogue of this feature. It contains 712 monomials - plus 3 generations of righthanded neutrinos if one extends the model to the $ν$MSSM. We note that $ν$MSSM flat directions can all be lifted by the 6th order superpotential - compared to the 9th order needed in MSSM.
description: 10 pages. v2: References added. v2+v3: Typos corrected
Relaxation dynamics and power spectra of liquid water: a molecular dynamics simulation study
Creators: name: Prasad, Mahabir
name: English, Niall J.
name: Chakraborty, Somendra Nath
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: Computational Biology

description: We present molecular dynamics simulations of liquid water at normal and supercooled conditions. Autocorrelation functions (ACFs) of several structural quantities and their fourier transforms are obtained and analysed. Structural correlations and relaxation times increase linearly with degree of supercooling. Power spectra of ACFs show increase in librational motion of liquid water with cooling. These modes intensify with supercooling because of structuring and ordering of water molecules. Overall, liquid water structure is homogenous over the temperatures and pressures studied and undergoes fluctuation–dissipation in its local-density variations [English and Tse, Phys. Rev. Lett. 106, 037801 (2011)].
Calculation of thermodynamic properties of vapor–liquid equilibria using ab initio intermolecular potential energy surfaces for dimer O2–O2
Creators: name: Nhung, Nguyen Thi Ai
name: Van Tat, Pham
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry

description: The two 5-site potentials from ab initio calculations at the theoretical level CCSD(T) with correlation consistent basis sets aug-cc-pVmZ (with m = 4, 34) have been constructed from oxygen. The extrapolation ab initio energies were approximated by the basis sets aug-cc-pVmZ (m = 3, 4). These two potentials were constructed by using the ab initio intermolecular energy values and a non-linear least-squares fitting method. The second virial coefficients of oxygen were determined to demonstrate the accuracy of these ab initio 5-site potentials. These ab initio potentials were employed to estimate the thermodynamic properties of the vapor–liquid equilibria by GEMC simulation. The influence of ab initio potential alone and plus 3-body interaction Axilrod-Teller potential was investigated within GEMC simulation from 80 K to 140 K. The discrepancy between them is insignificant. This showed that the two 2-body 5-site potential functions can also be used together with the 3-body interaction Axilrod-Teller potential to generate the accurate thermodynamic properties of the liquid–vapor equilibria.