cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Explaining lepton-flavor non-universality and self-interacting dark matter with $L_μ-L_τ$
Creators: name: Heeck, Julian
name: Thapa, Anil
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Experimental hints for lepton-flavor universality violation in the muon's magnetic moment as well as neutral- and charged-current $B$-meson decays require Standard-Model extensions by particles such as leptoquarks that generically lead to unacceptably fast rates of charged lepton flavor violation and proton decay. We propose a model based on a gauged $U(1)_{L_μ-L_τ}$ that eliminates all these unwanted decays by symmetry rather than finetuning and efficiently explains $(g-2)_μ$, $R_{K^{(*)}}$, $R_{D^{(*)}}$, and neutrino masses. The $U(1)_{L_μ-L_τ}$ furthermore acts as a stabilizing symmetry for dark matter and the light $Z'$ gauge boson mediates velocity-dependent dark-matter self-interactions that resolve the small-scale structure problems. Lastly, even the Hubble tension can be ameliorated via the light $Z'$ contribution to the relativistic degrees of freedom.
description: 8 pages and references, 6 figures; fixed pdf issues and added references, matches EPJC version
Maximally Chaotic Dynamical Systems and Fundamental Interactions
Creators: name: Savvidy, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We give a general review on the application of Ergodic theory to the investigation of dynamics of the Yang-Mills gauge fields and of the gravitational systems, as well as its application in the Monte Carlo method and fluid dynamics. In ergodic theory the maximally chaotic dynamical systems (MCDS) can be defined as dynamical systems that have nonzero Kolmogorov entropy. The hyperbolic dynamical systems that fulfil the Anosov C-condition belong to the MCDS insofar as they have exponential instability of their phase trajectories and positive Kolmogorov entropy. It follows that the C-condition defines a rich class of MCDS that span over an open set in the space of all dynamical systems. The large class of Anosov-Kolmogorov MCDS is realised on Riemannian manifolds of negative sectional curvatures and on high-dimensional tori. The interest in MCDS is rooted in the attempts to understand the relaxation phenomena, the foundations of the statistical mechanics, the appearance of turbulence in fluid dynamics, the non-linear dynamics of Yang-Mills field and gravitating N-body systems as well as black hole thermodynamics. Our aim is to investigate classical- and quantum-mechanical properties of MCDS and their role in the theory of fundamental interactions.
description: 79 pages, 17 figures. Based on lectures at the International Bogolyubov Conference "Problems of Theoretical and MathematicalPhysics" at the Steklov Mathematical Institute, Moscow-Dubna, September 9-13, 2019 [arXiv:2001.01785] and seminars at the Niels Bohr Institute, at the CERN Theory Department and A. Alikhanian National Laboratory in Yerevan
Construction Management Career Card Game
Creators: name: Samuel, Don
Publisher: name: National Teaching Repository
Year: 2025
Subjects: classificationCode: 400504
subject: Construction engineering

description: In this card game, students must design a resume for five key roles in the industry. They would use a combination of skill cards, experience cards and allocation cards. Wild cards are then introduced, which are scenarios that appear when you hire the key role with the designed resume. Students would then re-design the resume using corrective strategy cards.
Vibronic Resonance Along Effective Modes Mediates Selective Energy Transfer in Excitonically Coupled Aggregates
Creators: name: Patra, Sanjoy
name: Tiwari, Vivek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We recently proposed effective normal modes for excitonically coupled aggregates which exactly transform the energy transfer Hamiltonian into a sum of one-dimensional Hamiltonians along the effective normal modes. Identifying physically meaningful vibrational motions which maximally promote vibronic mixing suggested an interesting possibility of leveraging vibrational-electronic resonance for mediating selective energy transfer. Here we expand on the effective mode approach elucidating its iterative nature for successively larger aggregates, and extend the idea of mediated energy transfer to larger aggregates. We show that energy transfer between electronically uncoupled but vibronically resonant donor-acceptor sites does not depend on the intermediate site energy or the number of intermediate sites. The intermediate sites simply mediate electronic coupling such that vibronic coupling along specific promoter modes leads to direct donor-acceptor energy transfer bypassing any intermediate uphill energy transfer steps. We show that interplay between the electronic Hamiltonian and the effective mode transformation partitions the linear vibronic coupling along specific promoter modes to dictate the selectivity of mediated energy transfer, with a vital role of interference between vibronic couplings and multi-particle basis states. Our results suggest a general design principle for enhancing energy transfer through synergistic effects of vibronic resonance and weak mediated electronic coupling, where both effects individually do not promote efficient energy transfer. The effective mode approach proposed here paves a facile route towards four-wavemixing spectroscopy simulations of larger aggregates without severely approximating resonant vibronic coupling.
Solar Physics Research Integrated Network Group Science Requirement Document
Creators: name: Roth, Markus
Publisher: name: SMN - The ScienceMedia Network
Year: 2016
Subjects: Natural Sciences
Astronomy

description: This document is deliverable D80.1 of the Solarnet Work Package 80. It is the Science Requirement Document for a new network of ground-based observatories for synoptic observations of the sun.
Dr Landry Ndeudji, Le patrimoine secret des Allemands au Cameroun (1884-1919)
Creators: name: Ndeudji, Landry
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 470501
subject: African literature
classificationCode: 470514
subject: Literary theory

description: Dr Landry Ndeudji, Le patrimoine secret des Allemands au Cameroun (1884-1919)
Heat transport and cooling performance in a nanomechanical system with local and non local interactions
Creators: name: Beraha, Natalia
name: Carusela, M. Florencia
name: Soba, Alejandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the present work, we study heat transport through a one dimensional time-dependent nanomechanical system. The microscopic model consists of coupled chains of atoms, considering local and non-local interactions between particles. We show that the system presents different stationary transport regimes depending on the driving frequency, temperature gradients and the degree of locality of the interactions. In one of these regimes, the system operates as a phonon refrigerator, and its cooling performance is analyzed. Based on a low frequency approach, we show that non-locality and its interplay with dissipation cause a decrease in cooling capacity. The results are obtained numerically by means of the Keldysh non-equilibrium Green's function formalism.
description: 6 figures
title: Transportation System Vulnerability and Resilience to Extreme Weather Events and Other Natural Hazards
title: Report for Pilot Project — KYTC District 1
titleType: Subtitle
Creators: name: Blandford, Benjamin L.
name: Schurman, Scott
name: Wallace, Candice Y.
name: McCormack, Sarah M.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2016
Subjects: subject: Transportation Engineering

description: This research’s objective is to assist the Kentucky Transportation Cabinet (KYTC) in its efforts to develop strategies to address natural hazard vulnerabilities and improve the resiliency of Kentucky’s transportation infrastructure. Recent federal legislation calls for state transportation agencies to develop a risk-based asset management plan for National Highway System (NHS) assets that includes consideration of natural hazards. Similarly, the Federal Highway Administration (FHWA) calls for state transportation agencies to identify potential vulnerabilities associated with extreme weather events and climate change, and to incorporate these findings into transportation planning, design, and maintenance practices.
Covariant BRST Quantization of Unimodular Gravity II -- Formulation with a vector antighost --
Creators: name: Kugo, Taichiro
name: Nakayama, Ryuichi
name: Ohta, Nobuyoshi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In our previous paper, we have presented a covariant BRST quantization of unimodular gravity which may account for the smallness of the cosmological constant, and have shown that the physical degrees of freedom in the theory are the same as general relativity. The formulation has been given by using rank-2 antisymmetric tensor fields for both ghosts and antighosts. Here we give an alternative formulation using a vector field for the antighost but keeping the same structure for the ghosts. This gives a significantly simpler covariant quantization with less ghosts and no tripole modes in the ghost sector. We show that this also gives only two physical transverse modes as in general relativity.
description: 23 pages, v2: minor corrections, a ref. added. arXiv admin note: text overlap with arXiv:2202.03626
Barjols, atelier Fabre, fabrication du tambourin, clôture du cercle
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
North Ecliptic Pole merging galaxy catalogue
Creators: name: Pearson, W. J.
name: Suelves, L. E.
name: Ho, S. C. -C.
name: Oi, N.
name: Brough, S.
name: Holwerda, B. W.
name: Hopkins, A. M.
name: Huang, T. -C.
name: Hwang, H. S.
name: Kelvin, L. S.
name: Kim, S. J.
name: López-Sánchez, Á. R.
name: Małek, K.
name: Pearson, C.
name: Poliszczuk, A.
name: Pollo, A.
name: Rodriguez-Gomez, V.
name: Shim, H.
name: Toba, Y.
name: Wang, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We aim to generate a catalogue of merging galaxies within the 5.4 sq. deg. North Ecliptic Pole over the redshift range $0.0 < z < 0.3$. To do this, imaging data from the Hyper Suprime-Cam are used along with morphological parameters derived from these same data. The catalogue was generated using a hybrid approach. Two neural networks were trained to perform binary merger non-merger classifications: one for galaxies with $z < 0.15$ and another for $0.15 \leq z < 0.30$. Each network used the image and morphological parameters of a galaxy as input. The galaxies that were identified as merger candidates by the network were then visually checked by experts. The resulting mergers will be used to calculate the merger fraction as a function of redshift and compared with literature results. We found that 86.3% of galaxy mergers at $z < 0.15$ and 79.0% of mergers at $0.15 \leq z < 0.30$ are expected to be correctly identified by the networks. Of the 34 264 galaxies classified by the neural networks, 10 195 were found to be merger candidates. Of these, 2109 were visually identified to be merging galaxies. We find that the merger fraction increases with redshift, consistent with literature results from observations and simulations, and that there is a mild star-formation rate enhancement in the merger population of a factor of $1.102 \pm 0.084$.
description: Accepted to A&A, 26 pages, 20 figures, 8 tables, 3 appendixes, full tables 1 and 4 will be available on CDS
Lemmel syndrome â An unusual cause of obstructive jaundice.
Creators: name: Barros, Marta
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Abdomen
subject: Biliary Tract / Gallbladder
subject: Small bowel
subject: CT
subject: Education
subject: Diverticula

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 64 years
description: Clinical History: A 64-year-old woman presented to our hospital with several weeks of intermittent jaundice and mild epigastrial tenderness. Physical examination was unremarkable. Laboratory examinations revealed elevated bilirubin profile that suggested obstructive jaundi... Final Diagnosis: Lemmel syndrome (duodenal diverticulum causing obstructive jaundice)
Supplementary document for Effect of morphological evolution and aggregation of plasmonic core shell nanostructures on solar thermal conversion - 6467277.pdf
Creators: name: Xing, Linzhuang
name: Wang, Ruipeng
name: Ha, Yuan
name: Li, Zhimin
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: related figures
Kaon electromagnetic form factors in dispersion theory
Creators: name: Stamen, Dominik
name: Hariharan, Deepti
name: Hoferichter, Martin
name: Kubis, Bastian
name: Stoffer, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The electromagnetic form factors of charged and neutral kaons are strongly constrained by their low-energy singularities, in the isovector part from two-pion intermediate states and in the isoscalar contribution in terms of $ω$ and $ϕ$ residues. The former can be predicted using the respective $ππ\to\bar K K$ partial-wave amplitude and the pion electromagnetic form factor, while the latter parameters need to be determined from electromagnetic reactions involving kaons. We present a global analysis of time- and spacelike data that implements all of these constraints. The results enable manifold applications: kaon charge radii, elastic contributions to the kaon electromagnetic self energies and corrections to Dashen's theorem, kaon boxes in hadronic light-by-light (HLbL) scattering, and the $ϕ$ region in hadronic vacuum polarization (HVP). Our main results are: $\langle r^2\rangle_\text{c}=0.359(3)\,\text{fm}^2$, $\langle r^2\rangle_\text{n}=-0.060(4)\,\text{fm}^2$ for the charged and neutral radii, $ε=0.63(40)$ for the elastic contribution to the violation of Dashen's theorem, $a_μ^{K\text{-box}}=-0.48(1)\times 10^{-11}$ for the charged kaon box in HLbL scattering, and $a_μ^\text{HVP}[K^+K^-, \leq 1.05\,\text{GeV}]=184.5(2.0)\times 10^{-11}$, $a_μ^\text{HVP}[K_SK_L, \leq 1.05\,\text{GeV}]=118.3(1.5)\times 10^{-11}$ for the HVP integrals around the $ϕ$ resonance. The global fit to $\bar K K$ gives $\bar M_ϕ=1019.479(5)\,\text{MeV}$, $\bar Γ_ϕ=4.207(8)\,\text{MeV}$ for the $ϕ$ resonance parameters including vacuum-polarization effects.
description: 18 pages, 10 figures; v2 as published in EPJC
Removal of fine gangue minerals from Chador-malu iron concentrate using hydroseparator
Creators: name: Tohry, Arash
name: Dehghani, Ali
name: Hosseini-Nasab, Marzieh
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2017
Subjects: hydroseparator
phosphorus
silica
iron concentrate
Chador-malu plant

description: Physicochemical Problems of Mineral Processing; ISSN 2084-4735
On-shell versus curvature mass parameter fixing schemes in the quark-meson model and its phase diagrams
Creators: name: Rai, Suraj Kumar
name: Tiwari, Vivek Kumar
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute and compare the effective potential and phase structure for the quark-meson model in an extended mean-field approximation (e-MFA) when vacuum one loop quark fluctuations are included and the model parameters are fixed using different renormalization prescriptions.When the quark one loop vacuum divergence is regularized under the minimal subtraction scheme,the model setting of the parameter fixing using the curvature masses of the scalar and pseudo-scalar mesons, has been termed as the quark-meson model with the vacuum term(QMVT).However,this prescription becomes inconsistent when we notice that the curvature mass is akin to defining the meson mass by the self-energy evaluation at vanishing momentum.In this work,we apply the recently reported exact prescription of the on-shell parameter fixing,to that version of quark-meson (QM) model where the two quark flavors are coupled to the eight mesons of the $ SU(2)_{L} \times SU(2)_{R} $ linear sigma model with iso-singlet $ σ$ ($η$),iso-triplet $ \vec{a_{0}} $ ($ \vecπ $) scalar(pseudo-scalar) mesons.The model then becomes, the renormalized quark-meson (RQM) model where physical (pole) masses of mesons and pion decay constant, are put into the relation of the running mass parameter and couplings by using the on-shell and the minimal subtraction renormalization schemes.The vacuum effective potential plots,the phase diagrams and the order parameter temperature variations for both the RQM model and QMVT model,are exactly identical for the $m_σ=$616 MeV.The effective potential is deepest in the QMVT model for $m_σ< $ 616 MeV and it becomes deepest in the RQM model when $m_σ> $616 MeV.
description: 18 pages, 11 figures
Pure nematic quantum critical point accompanied by a superconducting dome
Creators: name: Ishida, K.
name: Onishi, Y.
name: Tsujii, M.
name: Mukasa, K.
name: Qiu, M.
name: Saito, M.
name: Sugimura, Y.
name: Matsuura, K.
name: Mizukami, Y.
name: Hashimoto, K.
name: Shibauchi, T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: When a symmetry-breaking phase of matter is suppressed to a quantum critical point (QCP) at absolute zero, quantum-mechanical fluctuations proliferate. Such fluctuations can lead to unconventional superconductivity, as evidenced by the superconducting domes often found near magnetic QCPs in correlated materials. However, it remains unclear whether this superconductivity mechanism holds for QCPs of the electronic nematic phase, characterized by rotational symmetry breaking. Here, we demonstrate from systematic elastoresistivity measurements that nonmagnetic FeSe$_{1-x}$Te$_{x}$ exhibits an electronic nematic QCP showing diverging nematic susceptibility. This finding establishes two nematic QCPs in FeSe-based superconductors with contrasting accompanying phase diagrams. In FeSe$_{1-x}$Te$_{x}$, a superconducting dome is centered at the QCP, whereas FeSe$_{1-x}$S$_{x}$ shows no QCP-associated enhancement of superconductivity. We find that this difference is related to the relative strength of nematic and spin fluctuations. Our results in FeSe$_{1-x}$Te$_{x}$ present the first case in support of the superconducting dome being associated with the pure nematic QCP.
description: Submitted version. 9 pages, 7 figures (including Supplementary Information)
Modeling of second sound in carbon nanostructures
Creators: name: Savin, Alexander V.
name: Kivshar, Yuri S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The study of thermal transport in low-dimensional materials has attracted a lot of attention recently after discovery of high thermal conductivity of graphene. Here we study numerically phonon transport in low-dimensional carbon structures being interested in the hydrodynamic regime revealed through the observation of second sound. We demonstrate that correct numerical modeling of such two-dimensional systems requires semi-classical molecular dynamics simulations of temperature waves that take into account quantum statistics of thermalized phonons. We reveal that second sound can be attributed to the maximum group velocity of bending optical oscillations of carbon structures, and the hydrodynamic effects disappear for $T>200$K, being replaced by diffusive dynamics of thermal waves. Our numerical results suggest that the velocity of second sound in such low-dimensional structures is about 6 km/s, and the hydrodynamic effects are manifested stronger in carbon nanotubes rather than in carbon nanoribbons.
description: 13 pages, 15 figures
PRISMA-ScR-Checklist -- Endocrine Econsults Scoping Review_2024.pdf
Creators: name: Vimalananda, Varsha
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 420302
subject: Digital health
classificationCode: 420321
subject: Rural and remote health services
classificationCode: 420319
subject: Primary health care
classificationCode: 420311
subject: Health systems

description: This PRISMA-ScR checklist accompanies a scoping review on use of e-consults for endocrine care delivery.
Interpolation of spectra from 3D model atmospheres
Creators: name: de Lis, S. Bertran
name: Prieto, C. Allende
name: Ludwig, H. -G.
name: Koesterke, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The use of 3D hydrodynamical simulations of stellar surface convection for model atmospheres is computationally expensive. Although these models have been available for quite some time, their use is limited because of the lack of extensive grids of simulations and associated spectra. Our goal is to provide a method to interpolate spectra that can be applied to both 1D and 3D models, and implement it in a code available to the community. This tool will enable the routine use of 3D model atmospheres in the analysis of stellar spectra.} We have developed a code that makes use of radial basis functions to interpolate the spectra included in the CIFIST grid of 84 three-dimensional model atmospheres. Spectral synthesis on the hydrodynamical simulations was previously performed with the code ASS$ε$T. We make a tool for the interpolation of 3D spectra available to the community. The code provides interpolated spectra and interpolation errors for a given wavelength interval, and a combination of effective temperature, surface gravity, and metallicity. In addition, it optionally provides graphical representations of the RMS and mean ratio between 1D and 3D spectra, and maps of the errors in the interpolated spectra across the parameter space.
description: 14 pages, 9 figures, accepted for publication in A&A
2016 Safety Belt Usage Survey in Kentucky
Creators: name: Agent, Kenneth R.
name: Green, Eric R.
name: Fields, Michael A.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2016
Subjects: subject: Transportation Engineering

description: The use of safety belts and child safety seats is a proven means of reducing injuries to motor vehicle occupants involved in traffic crashes. There have been various methods used in efforts to increase safety belt and safety seat usage. Past efforts have included public information campaigns, local and statewide legislation, and enforcement of the legislation.  The objective of the survey summarized in this report was to establish a statewide safety belt usage rate in Kentucky for 2016. This rate can be compared to those determined from previous surveys. The 2016 statewide survey documents the continued increase in usage associated with the change in the law to allow primary enforcement and related education and enforcement.
Slow convection and fast rotation in crystallization-driven white dwarf dynamos
Creators: name: Ginzburg, Sivan
name: Fuller, Jim
name: Kawka, Adela
name: Caiazzo, Ilaria
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It has been recently suggested that white dwarfs generate magnetic fields in a process analogous to the Earth. The crystallization of the core creates a compositional inversion that drives convection, and combined with rotation, this can sustain a magnetic dynamo. We reanalyse the dynamo mechanism, arising from the slow crystallization of the core, and find convective turnover times $t_{\rm conv}$ of weeks to months - longer by orders of magnitude than previously thought. With white dwarf spin periods $P\ll t_{\rm conv}$, crystallization-driven dynamos are almost always in the fast rotating regime, where the magnetic field $B$ is at least in equipartition with the convective motion and is possibly further enhanced by a factor of $B\propto (t_{\rm conv}/P)^{1/2}$, depending on the assumed dynamo scaling law. We track the growth of the crystallized core using MESA and compute the magnetic field $B(T_{\rm eff})$ as a function of the white dwarf's effective temperature $T_{\rm eff}$. We compare this prediction with observations and show that crystallization-driven dynamos can explain some - but not all - of the $\sim$MG magnetic fields measured for single white dwarfs, as well as the stronger fields measured for white dwarfs in cataclysmic variables, which were spun up by mass accretion to short $P$. Our $B(T_{\rm eff})$ curves might also explain the clustering of white dwarfs with Balmer emission lines around $T_{\rm eff}\approx 7500\textrm{ K}$.
description: Accepted version (MNRAS): improved calculation of the convection zone and the magnetic diffusion time, and a larger observational sample
Towards early dark energy and $n_s$=1 with Planck, ACT and SPT
Creators: name: Jiang, Jun-Qian
name: Piao, Yun-Song
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the constraints on early dark energy (EDE) by combining the most recent CMB observations available, ACT DR4, SPT-3G, and Planck2018 ($\ell_\text{TT,max}=1000$) data. This combined CMB dataset favors non-zero EDE fractions and large Hubble constants. The inclusion of BAO+Pantheon data has little effect on the results, leads to $H_0=71.6( 72.9)_{-1.5}^{+2.0}$ and $73.17(72.74)^{+0.55}_{-0.77}$ km/s/Mpc for axion-like EDE and AdS-EDE, respectively. The axion-like EDE can fit the data significantly better ($Δχ^2 \lesssim -10$) than $Λ$CDM, which is mainly driven by the ACT data. It is found again that if the current $H_0$ measured locally is correct, complete resolution of the Hubble tension seems to be pointing towards a scale invariant Harrison-Zeldovich spectrum of primordial scalar perturbation, i.e. $n_s=1$ for $H_0\sim 73$ km/s/Mpc.
description: 20 pages, 8 figures
Versatile optical frequency combs based on multi-seeded femtosecond optical parametric generation
Creators: name: Roiz, Mikhail
name: Vainio, Markku
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: This study proposes and demonstrates a versatile method for near and mid-infrared optical frequency comb generation using multi-seeded femtosecond optical parametric generation. The method allows one to divide the repetition rate by an arbitrarily large integer factor, freely tune the offset frequency, and adjust the common phase offset of the comb modes. Since all possible degrees of freedom are adjustable, the proposed method manifests itself as versatile optical frequency synthesis.
Dr Alassane Salao, La contribution des institutions nigériennes dans l’acquisition des manuscrits arabes
Creators: name: Salao, Alassane
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 470501
subject: African literature
classificationCode: 470507
subject: Comparative and transnational literature
classificationCode: 470514
subject: Literary theory

description: Dr Alassane Salao, La contribution des institutions nigériennes dans l’acquisition des manuscrits arabes
Time-dependent generator coordinate method study of fission: dissipation effects
Creators: name: Zhao, Jie
name: Nikšić, Tamara
name: Vretenar, Dario
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Starting from a quantum theory of dissipation for nuclear collective motion, the time-dependent generator coordinate method (TDGCM) is extended to allow for dissipation effects in the description of induced fission dynamics. The extension is based on a generalization of the GCM generating functions that includes excited states, and the resulting equation of motion in the collective coordinates and excitation energy. With the assumption of a narrow hamiltonian kernel, an expansion in a power series in collective momenta leads to a Schrödinger-like equation that explicitly includes a dissipation term, proportional to the momentum of the statistical wave function. An illustrative calculation is performed for induced fission of $^{228}$Th. The three-dimensional model space includes the axially-symmetric quadrupole and octupole shape variables, and the nuclear temperature. When compared to data for photo-induced fission of $^{228}$Th, the calculated fission yields demonstrate the important role of the additional term in the hamiltonian that explicitly takes into account the dissipation of energy of collective motion into intrinsic degrees of freedom.
description: 9 pages, 7 figures
How Well Can We Measure Galaxy Dust Attenuation Curves? The Impact of the Assumed Star-Dust Geometry Model in SED Fitting
Creators: name: Lower, Sidney
name: Narayanan, Desika
name: Leja, Joel
name: Johnson, Benjamin D.
name: Conroy, Charlie
name: Dave, Romeel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: One of the most common methods for inferring galaxy attenuation curves is via spectral energy distribution (SED) modeling, where the dust attenuation properties are modeled simultaneously with other galaxy physical properties. In this paper, we assess the ability of SED modeling to infer these dust attenuation curves from broadband photometry, and suggest a new flexible model that greatly improves the accuracy of attenuation curve derivations. To do this, we fit mock SEDs generated from the Simba cosmological simulation with the Prospector SED fitting code. We consider the impact of the commonly-assumed uniform screen model and introduce a new non-uniform screen model parameterized by the fraction of unobscured stellar light. This non-uniform screen model allows for a non-zero fraction of stellar light to remain unattenuated, resulting in a more flexible attenuation curve shape by decoupling the shape of the UV attenuation curve from the optical attenuation curve. The ability to constrain the dust attenuation curve is significantly improved with the use of a non-uniform screen model, with the median offset in UV attenuation decreasing from $-0.30$ dex with a uniform screen model to $-0.17$ dex with the non-uniform screen model. With this increase in dust attenuation modeling accuracy, we also improve the star formation rates (SFRs) inferred with the non-uniform screen model, decreasing the SFR offset on average by $0.12$ dex. We discuss the efficacy of this new model, focusing on caveats with modeling star-dust geometries and the constraining power of available SED observations.
description: Submitted to ApJ. 15 pages, 10 figures
Determination of atomic multiphoton ionization phases by trichromatic multichannel wave packet interferometry
Creators: name: Eickhoff, K.
name: Köhnke, D.
name: Feld, L.
name: Bayer, T.
name: Wollenhaupt, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a multichannel photoelectron interferometry technique based on trichromatic pulse shaping for unambiguous determination of quantum phases in multiphoton ionization (MPI) of potassium atoms. The colors of the laser field are chosen to produce three energetically separated photoelectron interferograms in the continuum. While the red pulse is two-photon resonant with the $3d$-state resulting in a (2+1) resonance-enhanced MPI (REMPI), a (1+2) REMPI occurs via the non-resonant intermediate $4p$-state with an initial green or blue pulse. We show that ionization via a non-resonant intermediate state lifts the degeneracy of photoelectron interferograms from pathways consisting of permutations of the colors. The analysis of the interferograms reveals a phase shift of $\pm π/2$ depending on the sign of the detunings in the (1+2) REMPI pathways. In addition, we demonstrate that the photoionization time delay in the resonant (2+1) REMPI pathway gives rise to a linear spectral phase in the photoelectron spectra. Insights into the underlying MPI processes are gained through an analytic perturbative description and numerical simulations of a trichromatic driven three level system coupled to the continuum.
description: 17 pages, 5 figures
Biliary cystadenoma with bile duct communication demonstrated on contrast-enhanced hepatobiliary phase MRI sequence
Creators: name: LeÃ³n Salinas, Jose Pablo
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Abdomen
subject: Liver
subject: CT
subject: CT-High Resolution
subject: MR
subject: MR-Functional imaging
subject: Ultrasound
subject: Diagnostic procedure
subject: Neoplasia

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 17 years
description: Clinical History: We present the case of a healthy 17-year-old woman who presented with a history of intermittent upper right abdominal pain for several months. Physical examination was unremarkable and laboratory findings were within normal range. Final Diagnosis: Biliary cystoadenoma
Wave-packet spreading in disordered soft architected structures
Creators: name: Ngapasare, Arnold
name: Theocharis, Georgios
name: Richoux, Olivier
name: Skokos, Charalampos
name: Achilleos, Vassos
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the dynamical and chaotic behavior of a disordered one-dimensional elastic mechanical lattice which supports translational and rotational waves. The model used in this work is motivated by the recent experimental results of B. Deng et al., Nat. Commun. 9, 3410 (2018). This lattice is characterized by strong geometrical nonlinearities and the coupling of two degrees-of-freedom (DoFs) per site. Although the linear limit of the structure consists of a linear Fermi-Pasta-Ulam-Tsingou lattice and a linear Klein-Gordon (KG) lattice whose DoFs are uncoupled, by using single site initial excitations on the rotational DoF, we evoke the nonlinear coupling between the system's translational and rotational DoFs. Our results reveal that such coupling induces rich wave-packet spreading behavior in the presence of strong disorder. In the weakly nonlinear regime, we observe energy spreading only due to the coupling of the two DoFs (per site) which is in contrast to what is known for KG lattices with a single DoF per lattice site, where the spreading occurs due to chaoticity. Additionally, for strong nonlinearities, we show that initially localized wave-packets attain near ballistic behavior in contrast to other known models. We also reveal persistent chaos during energy spreading, although its strength decreases in time as quantified by the evolution of the system's finite-time maximum Lyapunov exponent. Our results show that flexible, disordered and strongly nonlinear lattices are a viable platform to study energy transport in combination with multiple DoFs (per site), also present an alternative way to control energy spreading in heterogeneous media.
description: Submitted
Relativistic Motions of Spin-Zero Quantum Oscillator Field in a Global Monopole Space-Time with External Potential and AB-effect
Creators: name: Ahmed, Faizuddin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, We analyze a spin-zero relativistic quantum oscillator in the presence of the Aharonov-Bohm (AB) magnetic flux in a space-time background produced by a point-like global monopole (PGM). Afterward, we introduce a static Coulomb-type scalar potential and subsequently with the same type of vector potential in the quantum system. We solve the generalized Klein-Gordon oscillator analytically for different functions (e.g. Coulomb- and Cornell-type functions) and obtain the bound-states solutions in each case. We discuss the effects of topological defects associated with the scalar curvature of the space-time and the Coulomb-type external potentials on the energy profiles and the wave function of these oscillator fields. Furthermore, we show that the obtained energy eigenvalues depend on the magnetic quantum flux which gives rise to the gravitational analog of the Aharonov-Bohm (AB) effect
description: 22 pages, 5 figures, overall presentations has improved
Crohn's disease
Creators: name: Kabra, Utkarsh
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Abdomen
subject: CT
subject: Colonography CT
subject: Inflammation

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 37 years
description: Clinical History: Chronic abdominal pain and altered bowel habits. Final Diagnosis: Crohn's disease
Passive spiral galaxies deeply captured by Subaru Hyper Suprime-Cam
Creators: name: Shimakawa, Rhythm
name: Tanaka, Masayuki
name: Bottrell, Connor
name: Wu, Po-Feng
name: Chang, Yu-Yen
name: Toba, Yoshiki
name: Ali, Sadman
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper presents a thousand passive spiral galaxy samples at $z=$ 0.01-0.3 based on a combined analysis of the Third Public Data Release of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP PDR3) and the GALEX-SDSS-WISE Legacy Catalog (GSWLC-2). Among 54871 $gri$ galaxy cutouts taken from the HSC-SSP PDR3 over 1072 deg$^2$, we conducted a search with deep-learning morphological classification for candidates of passive spirals below the star-forming main sequence derived by UV to mid-IR SED fitting in the GSWLC-2. We then classified the candidates into 1100 passive spirals and 1141 secondary samples based on visual inspections. Most of the latter cases are considered to be passive ringed S0 or pseudo-ringed galaxies. The remainder of these secondary samples has ambiguous morphologies, including two peculiar objects with diamond-shaped stellar wings. The selected passive spirals have a similar distribution to the general quiescent galaxies on the EW$_\mathrm{Hδ}$-D$_n$4000 diagram and concentration indices. Moreover, we detected an enhanced passive fraction of spiral galaxies in X-ray clusters. Passive spirals in galaxy clusters are preferentially located in the midterm or late infall phase on the phase-space diagram, supporting the ram pressure scenario, which has been widely advocated in previous studies. The source catalog and $gri$-composite images are available on the HSC-SSP PDR3 website (https://hsc.mtk.nao.ac.jp/ssp/data-release/). Future updates, including integration with a citizen science project dedicated to the HSC data, will achieve more effective and comprehensive classifications.
description: 15 pages, 12 figures. Accepted for publication in Publications of the Astronomical Society of Japan (PASJ). The source catalog and images will be released on the HSC-SSP PDR3 website in March 2022
Internal Structure and Magnetic Moment of Rocky Planets. Application to the first exoplanets discovered by TESS
Creators: name: Rodríguez-Mozos, Jose-María
name: Moya, Andy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: For a planet to be considered habitable on its surface, it is an important advantage for it to have a magnetic field that protects its atmosphere from stellar winds as well as cosmic rays. Magnetic protection of potentially habitable planets plays a key role in determining the chances of detecting atmospheric biosignatures. This paper proposes to use the Preliminary Reference Earth Model (PREM) internal structure as the base of a numerical model. With this model, we estimate the magnetic properties of dry and water-rich Earth-like and Super-Earth-like planets. We apply it to those of this kind at the first 176 planets confirmed by TESS. Using PREM as a reference, we estimate the internal structure of dry and water-rich rocky planets. This model provides an estimation of the average density and core size of the planet and, with them, its magnetic moment depending on whether it is tidally locked or not. Our model estimates the thermodynamic variables as a function of pressure and includes saltwater as a component of water-rich exoplanets. We have not used the perfect layer differentiation approximation. We have validated our model with those planets and satellites in the Solar system with similar characteristics. The differences with the observed values in the internal structure characteristics, mass, average density, moment of inertia factor, and local Rossby number are remarkably low or even negligible. The estimated magnetic moments are also very similar to the observed ones. We have applied the model to the first 176 planets confirmed by the TESS, finding that, from an astrobiological perspective TOI-700 d and TOI-2257 b are the most interesting ones as being located in the habitable zone (HZ), although their magnetic moments are only about 0.01 of the Earth's magnetic moment.
description: Accepted for publication in A&A. 20 pages, 6 figures
Modelling X-shaped Radio Galaxies: Dynamical and Emission Signatures from the Back-flow model
Creators: name: Giri, Gourab
name: Vaidya, Bhargav
name: Rossi, Paola
name: Bodo, Gianluigi
name: Mukherjee, Dipanjan
name: Mignone, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Some of the radio galaxies show distortion in their jets, forming tailed or winged sources. X-shaped radio galaxies are a subclass of winged sources formation mechanism of which is still unclear. The focus of this work is to understand hydro-dynamical back-flows and their role in dynamics and non-thermal emission signatures (in presence of radiative losses and diffusive shock acceleration) during the initial phase of these galaxies. We have performed relativistic MHD simulations of an under-dense jet travelling in a tri-axial ambient using a hybrid Eulerian-Lagrangian framework to incorporate effects of micro-physical processes. We have demonstrated the dominant role played by pressure gradient in shaping XRGs in thermally dominated cases. We show that the prominence of the formed structure decreases as the jet deviates from the major axis of the ambient. The wing evolution is mainly governed by re-energized particles due to shocks that keep the structure active during the evolution time. The synthetic intensity maps of the radio galaxy show similarities with morphologies that are typically found in observed XRGs. This includes the cases with wider wings than the active lobes. The characteristic emission signatures in terms of its synchrotron spectra and implication of equipartition condition in age estimation are also discussed here. Additionally, we show that discrepancy of age can be attributed to mixing of different aged particle populations. Further, the effect of viewing angle on the difference of spectral index of the active lobes and the wings $(Δα)$ shows a large variation and degenerate behaviour. We have demonstrated the role of diffusive shocks in the obtained variation and have concluded that the spread of $(Δα)$ is not a dependable characteristic in determining the formation model of XRGs.
description: 15 pages, 17 figures, 3 tables; Accepted for publication in Astronomy & Astrophysics journal
Adsorption behavior of Zn(II) onto natural minerals in wastewater. A comparative study of bentonite and kaolinite
Creators: name: Chai, Wencui
name: Huang, Yanfang
name: Su, Shengpeng
name: Han, Guihong
name: Liu, Jiongtian
name: Cao, Yijun
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2017
Subjects: structural properties
clay minerals
wastewater
Zn(II)
adsorption

description: Physicochemical Problems of Mineral Processing; ISSN 2084-4735
Updated Gaia-2MASS 3D maps of Galactic interstellar dust
Creators: name: Lallement, R.
name: Vergely, J. -L.
name: Babusiaux, C.
name: Cox, N. L. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Three-dimensional (3D) maps of Galactic interstellar dust are a tool for a wide range of uses. We aim to construct 3D maps of dust extinction in the Local Arm and surrounding regions. Gaia EDR3 photometric data were combined with 2MASS measurements to derive extinction towards stars with accurate photometry and relative uncertainties on parallaxes of less than 20%. We applied our hierarchical inversion algorithm adapted to inhomogeneous spatial distributions of target stars to this catalogue of extinctions. We present the updated 3D dust extinction distribution and provide an estimate of the error on integrated extinctions from the Sun to each area in the 3D map. The computational area is similar to the one of the previous DR2 map, a 6 kpc x 6 kpc x 0.8 kpcAstrophysics volume around the Sun. Due to the addition of fainter target stars, the volume in which the clouds can be reconstructed has increased. Due to the improved accuracy of the parallaxes and photometric data in EDR3, extinctions among neighbouring targets are more consistent, allowing one to reach an increased contrast in the dense areas, while cavity contours are more regular. We show several comparisons with recent results on dust and star distributions. The wavy pattern around the Plane of the dust concentrations is better seen and exists over large regions. Its mean vertical peak-to-peak amplitude is of the order of 300 pc; interestingly, it is similar to the vertical period of the spectacular snail-shaped stellar kinematical pattern discovered in Gaia data. The Gaia EDR3 catalogue allows for a significant improvement of the extinction maps to be made and the hierarchical technique confirms its efficiency for massive datasets. Future comparisons between 3D maps of interstellar matter and stellar distributions may help to understand which mergers or internal perturbations have shaped the Galaxy within the first 3 kpc.
description: 13 pages, 13 figures, to appear in Astronomy and Astrophysics
Research on emulsified tyre pyrolysis oil as a coal flotation collector
Creators: name: Yang, Runquan
name: Shen, Liang
name: Wang, Huaifa
Publisher: name: Faculty of Geoengineering, Mining and Geology, Wrocław University of Technology, Wrocław
Year: 2017
Subjects: adsorption
interaction heat
contact angle
coal flotation
pyrolysis oil

description: Physicochemical Problems of Mineral Processing; ISSN 2084-4735