cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Inferred Abundance of Interstellar Objects of Technological Origin
Creators: name: Ezell, Carson
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2022
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The local detection rate of interstellar objects can allow for estimations of the total number of similar objects bound by the Milky Way thin disk. If interstellar objects of artificial origin are discovered, the estimated total number of objects can be lower by a factor of about $10^{16}$ if they target the habitable zone around the Sun. We propose a model for calculating the quantity of natural or artificial interstellar objects of interest based on the object's velocity and observed density. We then apply the model to the case of chemically propelled rockets from extraterrestrial civilizations. Finally, we apply the model to three previously discovered interstellar objects -- the object 'Oumuamua of unknown origin and the first interstellar meteors CNEOS 2014-01-08 and CNEOS 2017-03-09.
description: 11 pages, 2 figures; submitted for publication
Additional file 2 of Offspring production of haploid spermatid-like cells derived from mouse female germline stem cells with chromatin condensation
Creators: name: Hu, Xiaopeng
name: Wang, Hu
name: Tian, Geng. G.
name: Hou, Changliang
name: Xu, Bo
name: Zhao, Xinyan
name: Zhao, Yongqiang
name: Fang, Qian
name: Li, Xinyue
name: He, Lin
name: Chen, Xuejin
name: Li, Shangang
name: Wu, Ji
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Graphic abstract.
Relic density and temperature evolution of a light dark sector
Creators: name: Duan, Xin-Chen
name: Ramos, Raymundo
name: Tsai, Yue-Lin Sming
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have developed a set of four fully coupled Boltzmann equations to precisely determine the relic density and temperature of dark matter by including three distinct sectors: dark matter, light scalar, and standard model sectors. The intricacies of heat transfer between dark matter (DM) and the standard model sector through a light scalar particle are explored, inspired by stringent experimental constraints on the scalar-Higgs mixing angle and the DM-scalar coupling. Three distinct sectors emerge prior to DM freeze-out, requiring fully coupled Boltzmann equations to accurately compute relic density. Investigation of forbidden, resonance, and secluded DM scenarios demonstrates significant deviations between established methods and the novel approach with fully coupled Boltzmann equations. Despite increased computational demands, this emphasizes the need for improved precision in relic density calculations, underlining the importance of incorporating these equations in comprehensive analyses.
description: 40 pages, 10 figures. Matches PRD accepted version
ON DEMAND: Communicating Science - How to Teach a TED Talk
Creators: name: Thomas, Kate
name: Fletcher, Kari
Publisher: name: Innovations in Teaching & Learning Conference Proceedings
Year: 2021

description: This video will describe a course that I wrote and delivered to undergraduate students called "Translational Research Writing for the Social Sciences." I will highlight the purpose of the course and go into detail on some of the course activities, including designing and delivering a TEDx talk.
description: Innovations in Teaching & Learning Conference Proceedings, Vol. 13 (2021): Fostering Inclusive Excellence
The T2K Indication of Relatively Large theta_13 and a Natural Perturbation to the Democratic Neutrino Mixing Pattern
Creators: name: Xing, Zhi-zhong
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The T2K Collaboration has recently reported a remarkable indication of the ν_μ-> ν_e oscillation which is consistent with a relatively large value of θ_{13} in the three-flavor neutrino mixing scheme. We show that it is possible to account for such a result of θ_{13} by introducing a natural perturbation to the democratic neutrino mixing pattern, without or with CP violation. A testable correlation between θ_{13} and θ_{23} is predicted in this ansatz. We also discuss the Wolfenstein-like parametrization of neutrino mixing, and comment on other possibilities of generating sufficiently large θ_{13} at the electroweak scale.
description: RevTeX 8 pages
Convolutional Learning on Multigraphs
Creators: name: Butler, Landon
name: Parada-Mayorga, Alejandro
name: Ribeiro, Alejandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Graph convolutional learning has led to many exciting discoveries in diverse areas. However, in some applications, traditional graphs are insufficient to capture the structure and intricacies of the data. In such scenarios, multigraphs arise naturally as discrete structures in which complex dynamics can be embedded. In this paper, we develop convolutional information processing on multigraphs and introduce convolutional multigraph neural networks (MGNNs). To capture the complex dynamics of information diffusion within and across each of the multigraph's classes of edges, we formalize a convolutional signal processing model, defining the notions of signals, filtering, and frequency representations on multigraphs. Leveraging this model, we develop a multigraph learning architecture, including a sampling procedure to reduce computational complexity. The introduced architecture is applied towards optimal wireless resource allocation and a hate speech localization task, offering improved performance over traditional graph neural networks.
Topology of Reionisation times: concepts, measurements and comparisons to gaussian random field predictions
Creators: name: Thélie, Emilie
name: Aubert, Dominique
name: Gillet, Nicolas
name: Hiegel, Julien
name: Ocvirk, Pierre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the next decade, radio telescopes like the Square Kilometer Array (SKA) will explore the Universe at high redshift, and particularly during the Epoch of Reionisation (EoR). The first structures emerged during this epoch, and their radiations have reionised the previously cold and neutral gas of the Universe creating ionised bubbles that percolate at the end of the EoR (at a redshift of approximately 6). SKA will produce 2D images of the distribution of the neutral gas at many redshifts, pushing us to develop tools and simulations to understand its properties. This paper aims at measuring topological statistics of the EoR in the "reionisation times" fields from both cosmological and semi-analytical simulations. This field informs us about the time of reionisation of the gas at each position, is used to probe the inhomogeneities of reionisation histories and can possibly be extracted from 21 cm maps. We also compare these measurements with analytical predictions from the gaussian random field (GRF) theory. The GRF theory allows us to compute many statistics of a field: PDFs of the field or its gradient, isocontour length, critical point distributions, and skeleton length. We compare these theoretical predictions to measurements made on reionisation time fields extracted from an EMMA and a 21cmFAST simulations at 1 a cMpc/h resolution. We also compared our results to GRFs generated from the fitted power spectra of the simulation maps. Both EMMA and 21cmFAST reionisation time fields (treion(r)) are close to be gaussian fields, in contrast with the 21 cm, density or ionisation fraction that are all proven to be non-gaussian. Only accelerating ionisation fronts at the end of the EoR seem to be a cause of small non-gaussianities in treion(r). Overall our results indicate that an analytical description of the reionisation percolation can be reasonably made within the framework of GRF theory.
description: 22 pages, 20 figures, 3 tables. Accepted for publication in Astronomy & Astrophysics
From k-essence to generalised Galileons
Creators: name: Deffayet, Cédric
name: Gao, Xian
name: Steer, Daniele A.
name: Zahariade, George
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the most general scalar field theories which have an action that depends on derivatives of order two or less, and have equations of motion that stay second order and lower on flat space-time. We show that those theories can all be obtained from linear combinations of Lagrangians made by multiplying a particular form of the Galileon Lagrangian by an arbitrary scalar function of the scalar field and its first derivatives. We also obtain curved space-time extensions of those theories which have second order field equations for both the metric and the scalar field. This provide the most general extension, under the condition that field equations stay second order, of k-essence, Galileons, k-Mouflage as well as of the kinetically braided scalars. It also gives the most general action for a scalar classicalizer, which has second order field equations. We discuss the relation between our construction and the Euler hierachies of Fairlie et al, showing in particular that Euler hierachies allow one to obtain the most general theory when the latter is shift symmetric. As a simple application of our formalism, we give the covariantized version of the conformal Galileon.
description: 25 pages
Particle-Localized Ground State of Atom-Molecule Bose-Einstein Condensates in a Double-Well Potential
Creators: name: Motohashi, Atsushi
name: Nikuni, Tetsuro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of atom-molecule internal tunneling on the ground state of atom-molecule Bose-Einstein condensates in a double-well potential. In the absence of internal tunneling between atomic and molecular states, the ground state is symmetric, which has equal-particle populations in two wells. From the linear stability analysis, we show that the symmetric stationary state becomes dynamically unstable at a certain value of the atom-molecule internal tunneling strength. Above the critical value of the internal tunneling strength, the ground state bifurcates to the particle-localized ground states. The origin of this transition can be attributed to the effective attractive inter-atomic interaction induced by the atom-molecule internal tunneling. This effective interaction is similar to that familiar in the context of BCS-BEC crossover in a Fermi gas with Feshbach resonance. Furthermore, we point out the possibility of reentrant transition in the case of the large detuning between the atomic and molecular states.
description: 34 pages,10 figures
The Multifaceted Appearance of Supratentorial Ependymoma with ZFTA-MAML2 Fusion
Creators: name: Oon, Ming Liang
name: Hendriansyah, Lutfi
name: Pratiseyo, Patricia Diana
name: Wahjoepramono, Eka
name: Goh, Jian Yuan
name: Kuick, Chik Hong
name: Chang, Kenneth TE
name: Perry, Arie
name: Tan, Char Loo
Publisher: name: Free Neuropathology
Year: 2021

description: Ependymomas are glial neoplasms with a wide morphological spectrum. The majority of supratentorial ependymomas are known to harbor ZFTA fusions, most commonly to RELA. We present an unusual case of a 9-year-old boy with a supratentorial ependymoma harboring a noncanonical ZFTA-MAML2 fusion. This case had unusual histomorphological features lacking typical findings of ependymoma and bearing resemblance to a primitive neoplasm with focal, previously undescribed myogenic differentiation. We discuss the diagnostic pitfalls in this case and briefly review the histological features of ependymoma with noncanonical gene fusions. Our report underscores the importance of molecular testing in such cases to arrive at the correct diagnosis. Supratentorial ependymomas with noncanonical fusions are rare, and more studies are necessary for better risk stratification and identification of potential treatment targets.
description: Free Neuropathology, Bd. 2 (2021)
Tunneling limit of heavy-fermion point contacts
Creators: name: Fogelstrom, Mikael
name: Graf, Matthias J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present results for a multichannel tunneling model that describes point-contact spectra between a metallic tip and a superconducting heavy-fermion system. We calculate tunneling spectra both in the normal and superconducting state. In point-contact and scanning tunneling spectroscopy many heavy-fermion materials, like CeCoIn5, exhibit an asymmetric differential conductance, dI/dV, combined with a strongly suppressed Andreev reflection signal in the superconducting state. For Andreev reflection to occur a junction has to be in the highly transparent limit. Here we focus on the opposite limit, namely that of low transparency leading to BCS-like dI/dV curves. We discuss the consequences of a multichannel tunneling model for CeCoIn5 assuming itinerant electron bands and localized f electrons.
description: Contribution at SCES-2010
Chemo-Dynamically Tagged Groups of CEMP Stars in the Halo of the Milky Way. I. Untangling the Origins of CEMP-$s$ and CEMP-no Stars
Creators: name: Zepeda, Joseph
name: Beers, Timothy C.
name: Placco, Vinicius M.
name: Shank, Derek
name: Gudin, Dmitrii
name: Hirai, Yutaka
name: Mardini, Mohammad
name: Pifer, Colin
name: Catapano, Thomas
name: Calagna, Sean
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We construct a sample of 644 carbon-enhanced metal-poor (CEMP) stars with abundance analyses based on moderate- to high-resolution spectroscopic studies. Dynamical parameters for these stars are estimated, based on radial velocities, Bayesian parallax-based distance estimates, and proper motions from $Gaia$ EDR3 and DR3, supplemented by additional available information where needed. After separating our sample into the different CEMP morphological groups in the Yoon-Beers Diagram of absolute carbon abundance vs. metallicity, we used the derived specific energies and actions (E, J$_{r}$, J$_ϕ$, J$_{z}$) to cluster them into Chemo-Dynamically Tagged Groups (CDTGs). We then analyzed the elemental-abundance dispersions within these clusters by comparing them to the dispersion of clusters that were generated at random. We find that, for the Group I (primarily CEMP-$s$ and CEMP-$r/s$) clustered stars, there exist statistically insignificant intra-cluster dispersions in [Fe/H], $[\text{C}/\text{Fe}]_{c}$ (evolution corrected carbon), and [Mg/Fe] when compared to the intra-cluster dispersions of randomly clustered Group I CEMP stars. In contrast, the Group II (primarily CEMP-no) stars exhibit clear similarities in their intra-cluster abundances, with very low, statistically significant, dispersions in $[\text{C}/\text{Fe}]_{c}$. and marginally significant results in [Mg/Fe]. These results strongly indicate that Group I CEMP stars received their carbon enhancements from local phenomena, such as mass transfer from a evolved binary companion in regions with extended star-formation histories, while the CDTGs of Group II CEMP stars formed in low-metallicity environments that had already been enriched in carbon, likely from massive rapidly rotating ultra and hyper metal-poor stars and/or supernovae associated with high-mass early generation stars.
description: Accepted to APJ Journals. arXiv admin note: substantial text overlap with arXiv:2208.09712
The role of the Lyn tyrosine kinase in innate immunity and intestinal inflammation
Creators: name: Roberts, Morgan
Publisher: name: University of British Columbia
Year: 2020

description: The immune system is critical for host survival by providing protection against infectious organisms. However, the immune system also plays a major pathological role in many human diseases through inappropriate inflammatory responses that can lead to tissue damage and death. Therefore, understanding the mechanisms that drive and regulate these responses has broad implications for the development of therapies for numerous diseases including inflammatory bowel disease and atherosclerosis. Through its involvement in key signalling pathways, the Lyn tyrosine kinase is an important regulator of immune cell development and function. Using models of chemically induced colitis and enteric infection, we show that Lyn plays a critical role in regulating gastro-intestinal inflammation and in protection from enteric pathogens, by regulating host responses to intestinal microbes. Lyn-/- mice were highly susceptible to dextran sulfate sodium-induced colitis, whereas Lyn gain-of-function (LynUP) mice exhibited attenuated colitis. Protection in LynUP mice was independent of the adaptive immune system and involved hypersensitivity to microbial products such as LPS, leading to enhanced production of protective factors including IL-22. Increased DSS susceptibility in Lyn-/- mice correlated with dysbiosis and altered T cell responses. This dysbiosis was characterized by an expansion of segmented filamentous bacteria, which was associated with altered production of IL-22 and IgA. Furthermore, increased Lyn activity in dendritic cells was sufficient to drive increased IL-22 production by innate lymphoid cells. This extended beyond the gut to the spleen, which added to previous findings by our lab and others, identifying Lyn as an important regulator of systemic mononuclear phagocytes and their inflammatory responses. Finally, we identified Lyn as a negative regulator of Ly6C- patrolling monocytes (pMo). Lyn-/- mice displayed increased frequency and numbers of pMos whereas LynUP mice were skewed towards increased conventional monocytes (cMo). The increase in pMos in Lyn-/- mice was independent of the adaptive immune system and the autoimmune and myeloproliferative disorders that develop in these mice with age. Furthermore, these monocyte differences correlated with a pathological role for Lyn in a model of atherosclerosis. Together, these studies identify Lyn as an important regulator of innate immune responses involved in sterile and microbial-driven inflammatory diseases.
Multiphoton excitation and high harmonic generation in rectangular graphene quantum dot
Creators: name: Ghazaryan, A G
name: Sedrakian, Kh V
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The multiphoton excitation and high harmonic generation (HHG) processes are considered using the microscopic quantum theory of nonlinear interaction of strong coherent electromagnetic (EM) radiation with rectangular graphene quantum dot (RGQD). The dynamic Hartree-Fock approximation is developed for the consideration of the quantum dot-laser field nonlinear interaction at the nonadiabatic multiphoton excitation regime. The many-body Coulomb interaction is described in the extended Hubbard approximation. By numerical results, we show the significance of the RGQD lateral size, shape, and EM wavefield orientation in RGQD of the zigzag edge compear to the armchair edge in the HHG process allowing for increasing the cutoff photon energy and the quantum yield of higher harmonics.
description: 17 pages, 14 figures
Two-component off-axis jet model for radio flares of tidal disruption events
Creators: name: Sato, Yuri
name: Murase, Kohta
name: Bhattacharya, Mukul
name: Carpio, Jose
name: Mukhopadhyay, Mainak
name: Zhang, B. Theodore
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recently, radio emission from tidal disruption events (TDEs) has been observed from months to years after the optical discovery. Some of the TDEs including ASASSN-14ae, ASASSN-15oi, AT 2018hyz, and AT 2019dsg are accompanied by the late-time rebrightening phase characterized by a rapid increase in the radio flux. We show that it can be explained by the off-axis two-component jet model, in which the late-time rebrightening arises from the off-axis view of a decelerating narrower jet with an initial Lorentz factor of ~10 and a jet opening angle of ~0.1 rad, while the early-time radio emission is attributed to the off-axis view of a wider jet component. We also argue that the rate density of jetted TDEs inferred from these events is consistent with the observations.
description: 8+2 pages, 2+2 figures, 1 table, accepted for publication in PRDL
Dual multiplets in N=4 superconformal mechanics
Creators: name: Bellucci, Stefano
name: Krivonos, Sergey
name: Sutulin, Anton
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose Lagrangian formulations of a three-particles translation invariant $N=4$ superconformal mechanics based on the standard and twisted $(1,4,3)$ supermultiplets. We show that in the appropriate set of coordinates, in which the bosonic kinetic terms for each of the two cases take conformally-flat forms, the corresponding models produce just similar physical systems with the flipped angular part of bosonic potential $U(x)\rightarrow 1/U(x)$. This flipping looks so simple only being written in the "angle" variable, while in the standard variables it looks more complicated to preserve the superconformal symmetry. We demonstrate at both the superfield and the component level, how familiar $N=4$ supersymmetric 3-particles models, including $3-Calogero$, ${\it BC_2}$ and ${\it G_2}$ ones, can be constructed with twisted supermultiplets. We also present some new explicit examples of 3-dimensional superconformal mechanics.
description: 11 pages, LaTeX, no figures, PACS: 12.60.Jv, 03.65.-w, 11.30.Pb; minor corrections
Real zeros of holomorphic Hecke cusp forms
Creators: name: Ghosh, Amit
name: Sarnak, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F11, 11F30, 34F05

description: This note is concerned with the zeros of holomorphic Hecke cusp forms of large weight on the modular surface. The zeros of such forms are symmetric about three geodesic segments and we call those zeros that lie on these segments, real. Our main results give estimates for the number of real zeros as the weight goes to infinity.
Some new results on the SU(3) Toda system and Lin-Ni problem
Creators: name: Yang, Wen
Publisher: name: University of British Columbia
Year: 2015

description: In this thesis, we mainly consider two problems. First, we study the SU(3) Toda system. Let (M,g) be a compact Riemann surface with volume 1, h₁ and h₂ be a C¹ positive function on M and p1; p2 ∈ ℝ⁺. The SU(3) Toda system is the following one on the compact surface M [Formula and equation omitted] where ∆ is the Beltrami-Laplace operator, αq ≥ 0 for every q ∈ S₁, S₁ ⊂ M, Bq ≥ 0 for every q ∈ S₂,S₂ ⊂ M and q is the Dirac measure at q ∈ M. We initiate the program for computing the Leray-Schauder topological degree of SU(3) Toda system and succeed in obtaining the degree formula for p1 ∈ (0,4π)(4π,8π), p2 ∉ 4πℕ when S₁ = S₂ = 0. Second, we consider the following nonlinear elliptic Neumann problem {∆u-μu +uq =0 in Ω,u > 0 in Ω,au/av=0 on aΩ. where q=n+2/n-2, μ > 0 and Ω is a smooth and bounded domain in ℝn. Lin and Ni (1986) conjectured that for μ small, all solutions are constants. In the second part of this thesis, we will show that this conjecture is false for a general domain in n = 4, 6 by constructing a nonconstant solution.
Primordial black holes and third order scalar induced gravitational waves
Creators: name: Chang, Zhe
name: Kuang, Yu-Ting
name: Zhang, Xukun
name: Zhou, Jing-Zhi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The process of \acp{PBH} formation would be inevitably accompanied by \acp{SIGW}. This strong correlation between \acp{PBH} and \acp{SIGW} signals could be a promising approach to detecting \acp{PBH} in the upcoming \ac{GW} experiments, such as \ac{LISA}. We investigate the third order \acp{SIGW} during a \ac{RD} era in the case of a monochromatic primordial power spectrum $\mathcal{P}_ζ=A_ζk_*δ\left(k-k_*\right)$. For \ac{LISA} observations, the relations between \ac{SNR} and monochromatic primordial power spectrum are studied systematically. It shows that the effects of third order \acp{SIGW} extend the cutoff frequency from $2f_*$ to $3f_*$ and lead to about $200\%$ increase of the \ac{SNR} for frequency band from $10^{-5}$Hz to $1.6\times 10^{-3}$Hz corresponding to \acp{PBH} with mass range $4\times 10^{-12}M_{\odot} \sim 10^{-7}M_{\odot}$. We find that there exists a critical value $A_*=1.76\times 10^{-2}$ for the amplitude of the monochromatic primordial power spectra, such that when $A_ζ>A_*$, the energy density of third order \acp{SIGW} will be larger than the energy density of second order \acp{SIGW}.
Detecting sublunar-mass primordial black holes with the Earth-Moon binary system
Creators: name: Li, Ya-Ling
name: Huang, Guo-Qing
name: Huang, Zong-Qiang
name: Shu, Fu-Wen
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we propose a new way to detect sublunar-mass primordial black holes (PBHs) by direct observations of the Earth-Moon binary system.Our method is based on treating PBH as a perturbation term, by assuming that the PBH is far away from the Earth-Moon binary (far greater than 1 AU) and the mass of the PBH is small (less than the lunar mass). This perturbation treatment allows us to develop a framework to calculate the orbits of a generic binary system such as the Earth-Moon binary system. Our numerical results show that the Earth-Moon distance is sensitive to the initial values of the system. In most cases, the long-duration interactions between the PBH and the Earth-Moon system can induce lasting imprints on the Earth-Moon's orbit, and these imprints can accumulate over time, eventually giving rise to observable deviations which can be used to infer the properties of the PBH.
description: 23 pages, 16 figures
A framework to mitigate patchy reionization contamination on the primordial gravitational wave signal
Creators: name: Jain, Divesh
name: Choudhury, Tirthankar Roy
name: Mukherjee, Suvodip
name: Paul, Sourabh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: One of the major goals of future cosmic microwave background (CMB) $B$-mode polarization experiments is the detection of primordial gravitational waves through an unbiased measurement of the tensor-to-scalar ratio $r$. Robust detection of this signal will require mitigating all possible contamination to the $B$-mode polarization from astrophysical origins. One such extragalactic contamination arises from the patchiness in the electron density during the reionization epoch. Along with the signature on CMB polarization, the patchy reionization can source secondary anisotropies on the CMB temperature through the kinetic Sunyaev-Zeldovich (kSZ) effect. In order to study the impact of this foreground for the upcoming CMB missions, we present a self-consistent framework to compute the CMB anisotropies based on a physically motivated model of reionization. We show that the value of $r$ can bias towards a higher value if the secondary contribution from reionization is neglected. However, combining small-scale kSZ signal, large-scale $E$-mode polarization, and $B$-mode polarization measurements, we can put constraints on the patchiness in electron density during reionization and can mitigate its impact on the value of $r$. CMB missions such as CMB-S4 and PICO may experience a bias of $>0.17σ$ which can go as high as $\sim 0.73σ$ for extreme reionization models allowed by the Planck and SPT CMB measurements. As future experiments target to measure $r$ at $5σ$, this is likely to affect the measurement significance and hence possibly affect the claim of detection of $r$, if not mitigated properly by using joint estimations of different reionization observables.
description: Accepted for publication in Monthly Notices of the Royal Astronomical Society Main Journal
Macroderes namakwanus Frolov & Scholtz 2005
Creators: name: Abdalla, Ishtiag H.
name: Deschodt, Christian M.
name: Scholtz, Clarke H.
name: Sole, Catherine L.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Macroderes
Macroderes namakwanus

description: Macroderes namakwanus Frolov & Scholtz, 2005
(Figs. 13, 35, 42, 61, 75)
Macroderes namakwanus Frolov & Scholtz 2005: 388.
Type locality. RSA, Western Cape Prov, Hoekbaai, 31°09'26.07''S 017°45'55.70''E.
Type material examined. Holotype, ♂ (TMSA): “ RSA / Western Cape Prov / Hoekbaai / A. Frolov & C. Deschodt leg [printed] // AF-0039 (19) / 4–11. IX. 2003 / S 31° 04' 26.07'' E 017° 45' 55.70'' [printed] // HOLOTYPUS / Macroderes namakwanus / Frolov & Scholtz / 2003 [red label, printed]”; Paratypes: 1♂ (TMSA): “S. Afr / Namaquland / Brakriver mouth / 36°.06' S–17°.44' E [printed] // 25. 8. 1979 // E– Y: 1597 / groundtraps / 63 days / Endrödy—Younga leg [printed] // PARTYPUS / Macroderes namakwanus / Frolvo & Scholtz / 2003 [red label, printed]”; 1 ♂ (TMSA): “S. AFR / Namaquland / Hoekbaai / 2 Km / E NE / 31°. 11' S 17°. 47' E [printed] // 27. 8. 1979 // E–Y: 1612 / white sand / night / Endrödy—Younga leg [printed] // PARATYPUS / Macroderes namakwanus / Frolov & Scholtz / 2003 [red label, printed]”; 1 ♂ (TMSA): “S. Afr / Namaquland / Kotzerus / 30° 57' S– 17°.50' E [printed] // 23. 8. 1979 // E–Y: 1581 / white dune / day /. Endrödy—Younga leg [printed] // PARATYPUS / Macroderes namakwanus / Frolov & Scholtz / 2003 [red– printed]”; 1 ♀ (TMSA): “S. Afr / Richtersveld / Klein Helskloof / 28°.51' S–17°.24' E [printed] // 8.9.1976 // E–Y: 1239 / groundtraps / 32 days / Endrödy—Younga leg [printed] // groundtrap with faeces bait [printed] // PARATYPUS / Macroderes namakwanus / Frolov & Scholtz / 2003 [red label, printed]”.
Additional material examined. 2 ♂♂ and 3 ♀♀ (UPSA): “ South Africa / 6 km N of / Kotzerus / S 30° 69' 26.11'' E 017° 86' 9.83'' / 12. 8. 2015 ”.
Size range. Males length: 10.4–12.8 mm, width: 7.0– 8.7 mm; females length: 11.7–12.5 mm, width: 8.0–9.0 mm.
Differential diagnosis. M. namakwanus is in habitus similar to M. endroedyi (Fig. 13) however, it is differentiated by the combination of the following characteristics: Pronotum regularly punctate lacking the distinct tubercle in between (Fig. 61) and no shiny tubercles on the elytra (Fig. 75)
Habitat and distribution. See distribution under M. mutilans (Fig. 2)
description: Published as part of Abdalla, Ishtiag H., Deschodt, Christian M., Scholtz, Clarke H. & Sole, Catherine L., 2018, An update to the taxonomy of the genus Macroderes Westwood 1842 (Coleoptera: Scarabaeidae: Scarabaeinae) with descriptions of new species from South Africa, pp. 41-75 in Zootaxa 4504 (1) on page 63, DOI: 10.11646/zootaxa.4504.1.3, http://zenodo.org/record/2606164
Approximation Algorithm for Line Segment Coverage for Wireless Sensor Network
Creators: name: Dash, Dinesh
name: Bishnu, Arijit
name: Gupta, Arobinda
name: Nandy, Subhas C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: The coverage problem in wireless sensor networks deals with the problem of covering a region or parts of it with sensors. In this paper, we address the problem of covering a set of line segments in sensor networks. A line segment ` is said to be covered if it intersects the sensing regions of at least one sensor distributed in that region. We show that the problem of finding the minimum number of sensors needed to cover each member in a given set of line segments in a rectangular area is NP-hard. Next, we propose a constant factor approximation algorithm for the problem of covering a set of axis-parallel line segments. We also show that a PTAS exists for this problem.
description: 16 pages, 5 figures,
Observation of depth-induced properties in wave turbulence on the surface of a fluid
Creators: name: Falcon, Eric
name: Laroche, Claude
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chaotic Dynamics (nlin.CD)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We report the observation of changes in the wave turbulence properties of gravity-capillary surface waves due to a finite depth effect. When the fluid depth is decreased, a hump is observed on the wave spectrum in the capillary regime at a scale that depends on the depth. The possible origin of this hump is discussed. In the gravity regime, the wave spectrum still shows a power law but with an exponent that strongly depends on the depth. A change in the scaling of the gravity spectrum with the mean injected power is also reported. Finally, the probability density function of the wave amplitude rescaled by its rms value is found to be independent of the fluid depth and to be well described by a Tayfun distribution.
description: accepted to EPL
The Gieseker-Petri divisor in M_g for genus g<=13
Creators: name: Lelli-Chiesa, Margherita
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The Gieseker-Petri locus GP_g is defined as the locus inside M_g consisting of curves which violate the Gieseker-Petri Theorem. It is known that GP_g has always some divisorial components and it has been conjectured that it is of pure codimension 1 inside M_g. We prove that this holds true for genus up to 13.
description: 16 pages
Koller, Edeltraud: Die Wissenschaften als Erkenntnisquelle der katholischen Morallehrer. Die Päpstliche Akademie der Wissenschaften als Modell der ethischen Integration eines Locus theologicus alienus
Creators: name: Schallenberg, Peter
Publisher: name: Theologische Revue
Year: 2021

description: Theologische Revue, Bd. 117 (2021): September
Електронні ресурси відкритого доступу для наукової бібліотеки
Creators: name: Vasyliev, Oleksii
Publisher: name: Zenodo
Year: 2019
Subjects: e-resource
Open Access
Budapest Open Access Initiative
Creative Commons
DOAJ
Open Access Journals
Zenodo
Scopus
Web-of-Science

description: Презентація включвє обговорення таких питань:

- Основні положення ініціативи відкритого доступу. Втілення концепції у розвиток наукових журналів

- Інформаційні системи відкритого доступу до наукових публікацій та особливості їх використання для пошуку наукової інформації та розповсюдження власних матеріалів
Fuzzy Dark Matter as a Solution to Reconcile the Stellar Mass Density of High-z Massive Galaxies and Reionization History
Creators: name: Gong, Yan
name: Yue, Bin
name: Cao, Ye
name: Chen, Xuelei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The JWST early release data show unexpected high stellar mass densities of massive galaxies at $7
description: 8 pages, 4 figures, accepted for publication in ApJ
Redshift evolution of the 1.4 GHz volume averaged radio luminosity function in clusters of galaxies
Creators: name: Sommer, M. W.
name: Basu, K.
name: Pacaud, F.
name: Bertoldi, F.
name: Andernach, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: By cross-correlating large samples of galaxy clusters with publicly available radio source catalogs, we construct the volume-averaged radio luminosity function (RLF) in clusters of galaxies, and investigate its dependence on cluster redshift and mass. In addition, we determine the correlation between the cluster mass and the radio luminosity of the brightest source within 50 kpc from the cluster center. We use two cluster samples: the optically selected maxBCG cluster catalog and a composite sample of X-ray selected clusters. The radio data come from the VLA NVSS and FIRST surveys. We use scaling relations to estimate cluster masses and radii to get robust estimates of cluster volumes. We determine the projected radial distribution of sources, for which we find no dependence on luminosity or cluster mass. Background and foreground sources are statistically accounted for, and we account for confusion of radio sources by adaptively degrading the resolution of the radio source surveys. We determine the redshift evolution of the RLF under the assumption that its overall shape does not change with redshift. Our results are consistent with a pure luminosity evolution of the RLF in the range 0.1 < z < 0.3 from the optical cluster sample. The X-ray sample extends to higher redshift and yields results also consistent with a pure luminosity evolution. We find no direct evidence of a dependence of the RLF on cluster mass from the present data, although the data are consistent with the most luminous sources only being found in high-mass systems.
description: Accepted for publication in A&A
Signal Processing Compact Binary Coalescence Gravitational Wave Data from the Advanced LIGO Detectors
Creators: name: Bogat, Sophia E.
Publisher: name: The University of Texas at Austin
Year: 2017
Subjects: physics
astrophysics
relativity
gravitation
gravitational waves
LIGO
black holes

description: Abstract or description: This thesis explores the complex signal processing tools and techniques used to perform gravitational wave astronomy. The first ever direct observation of spatial strain caused by a gravitational wave was achieved by the Laser Interferometer Gravitational-Wave Observatory (LIGO) on September 14th, 2015, nearly 100 years after Albert Einstein predicted their existence. Because the amplitude of the strain is so small (on the order of 10​-21​), it must be measured by a 4 kilometer long interferometer equipped with extremely advanced thermal and seismic vibration isolation systems. Furthermore, the data must undergo significant processing in the form of whitening, matched filtering, and bandpass filtering. We present a detailed study of the steps undergone to identify and validate potential gravitational wavesignals using the LIGO-designed PyCBC software framework for the observation of compact binary coalescence.
Topological descriptors of the parameter region of multistationarity: deciding upon connectivity
Creators: name: Telek, Máté L.
name: Feliu, Elisenda
Publisher: name: arXiv
Year: 2022
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Symbolic Computation (cs.SC)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Switch-like responses arising from bistability have been linked to cell signaling processes and memory. Revealing the shape and properties of the set of parameters that lead to bistability is necessary to understand the underlying biological mechanisms, but is a complex mathematical problem. We present an efficient approach to determine a basic topological property of the parameter region of multistationary, namely whether it is connected or not. The connectivity of this region can be interpreted in terms of the biological mechanisms underlying bistability and the switch-like patterns that the system can create. We provide an algorithm to assert that the parameter region of multistationarity is connected, targeting reaction networks with mass-action kinetics. We show that this is the case for numerous relevant cell signaling motifs, previously described to exhibit bistability. However, we show that for a motif displaying a phosphorylation cycle with allosteric enzyme regulation, the region of multistationarity has two distinct connected components, corresponding to two different, but symmetric, biological mechanisms. The method relies on linear programming and bypasses the expensive computational cost of direct and generic approaches to study parametric polynomial systems. This characteristic makes it suitable for mass-screening of reaction networks.
description: Accepted in Plos Computational Biology
Phonons and superconductivity in YbC$_6$ and related compounds
Creators: name: Upton, M. H.
name: Forrest, T. R.
name: Walters, A. C.
name: Howard, C. A.
name: Ellerby, M.
name: Said, A. H.
name: McMorrow, D. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The out-of-plane intercalate phonons of superconducting YbC6 have been measured with inelastic x-ray scattering. Model fits to this data, and previously measured out-of-plane intercalate phonons in graphite intercalation compounds (GICs), reveal surprising trends with the superconducting transition temperature. These trends suggest that superconducting GICs should be viewed as electron-doped graphite.
Fourier coefficients of noncongruence cuspforms
Creators: name: Li, Wen-Ching Winnie
name: Long, Ling
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F11

description: Given a finite index subgroup of $SL_2(\mathbb Z)$ with modular curve defined over $\mathbb Q$, under the assumption that the space of weight $k$ ($ \ge 2$) cusp forms is $1$-dimensional, we show that a form in this space with Fourier coefficients in $\mathbb Q$ has bounded denominators if and only if it is a congruence modular form.
Additional file 1 of Forest malaria and prospects for anti-malarial chemoprophylaxis among forest goers: findings from a qualitative study in Lao PDR
Creators: name: Jongdeepaisal, Monnaphat
name: Inthasone, Soulixay
name: Khonputsa, Panarasri
name: Malaphone, Vilayvone
name: Pongsoipetch, Kulchada
name: Pongvongsa, Tiengkham
name: Mayxay, Mayfong
name: Chindavongsa, Keobouphaphone
name: Pell, Christopher
name: Maude, Richard J.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Forest goer IDI guide.
Two-dimensional coherent spectrum of interacting spinons from matrix-product states
Creators: name: Gao, Qi
name: Liu, Yang
name: Liao, Haijun
name: Wan, Yuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We compute numerically the second and third order nonlinear magnetic susceptibilities of an Ising ladder model in the context of two-dimensional coherent spectroscopy by using the infinite time-evolving block decimation method. The Ising ladder model couples a quantum Ising chain to a bath of polarized spins, thereby effecting the decay of spinon excitations. We show that its third order susceptibility contains a robust spinon echo signal in the weak coupling regime, which appears in the two-dimensional coherent spectrum as a highly anisotropic peak in the frequency plane. The spinon echo peak reveals the dynamical properties of the spinons. In particular, the spectral peak corresponding to the high energy spinons, which couple to the bath, is suppressed with increasing coupling, whereas those do not show no significant changes.
description: 9 pages, 8 figures
Smad2 overexpression and the progression of periodontal disease
Creators: name: Mazen, Alotaibi Kitab
Publisher: name: University of British Columbia
Year: 2015

description: Periodontitis is a chronic inflammatory disease, characterized by destruction of the periodontal attachment apparatus including the alveolar bone. Previous studies have provided evidence for the involvement of transforming growth factor beta (TGF-β) signaling in periodontitis progression. TGF-β signaling is responsible for a variety of cellular processes including proliferation, differentiation and apoptosis. The SMAD2 transcription factor lies at the heart of TGF-β intracellular mediators. Previous authors have reported the effect of Smad2 overexpression on multiple mouse tissues (Ito et al 2001), but did not report the role of Smad2 overexpression on the progression of periodontal disease. We hypothesized that Smad2 overexpression alters apoptosis, cell proliferation, and inflammatory cytokine secretions in the junctional epithelium (JE), leading to periodontal attachment loss. A mouse model that overexpresses Smad2 in epithelial cells driven by the cytokeratin 14 promoter (K14) was used to test the hypotheses. The K14-Smad2 mice findings were compared to those observed in wild type (WT) mice that served as controls. The results of the study showed that Smad2 overexpression reduced the histological surface area of JE when compared to WT mice. The reduction of the JE surface area in K14-Smad2 mice was attributed to an increased apoptotic index and a reduced proliferation rate. The overexpression of Smad2 increased the apoptotic index by down regulating Bcl2, an antiapoptotic molecule. Smad2 overexpression also reduced the proliferation rate of the JE cells in K14-Smad2 mice by upregulating c-Myc, which in turn upregulates phosphorylated retinoblastoma P15, and P27. The overexpression of Smad2 resulted in severe alveolar bone loss in the K14-Smad2 mice when compared to the WT controls. Smad2 overexpression resulted in a reduction in the bone density and bone volume in the K14-Smad2 mice when compared to their WT counterparts. The severe alveolar bone loss in K14-Smad2 mice was attributed to an upregulation in tumor necrosis factor alpha (TNF-α) , RANKL and increased osteoclast numbers. In summary the overexpression of Smad2 reduced the histological surface of JE and resulted in severe bone loss that follows a chronic disease pattern in K14-Smad2 mice.
Haunschmidt, Clemens: „Der Geist ist es, der lebendig macht“. Biblische Hermeneutik im Diskurs zwischen John Breck, Ulrich Körtner und Joseph Ratzinger
Creators: name: Paprotny, Thorsten
Publisher: name: Theologische Revue
Year: 2021

description: Theologische Revue, Bd. 117 (2021): September
Radiative heat transfer between dielectric bodies
Creators: name: Biehs, Svend-Age
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The recent development of a scanning thermal microscope (SThM) has led to measurements of radiative heat transfer between a heated sensor and a cooled sample down to the nanometer range. This allows for comparision of the known theoretical description of radiative heat transfer, which is based on fluctuating electrodynamics, with experiment. The theory itself is a macroscopic theory, which can be expected to break down at distances much smaller than 10-8m. Against this background it seems to be reasonable to revisit the known macroscopic theory of fluctuating electrodynamics and of radiative heat transfer.