cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Merikanto et al: How Asian aerosols impact regional surface temperatures across the globe, submitted to ACP; NorESM1 and ECHAM6.1 data
Creators: name: Merikanto, Joonas
name: Nordling, Kalle
name: Räisänen, Petri
Publisher: name: https://b2share.eudat.eu
Year: 2020
Subjects: 3.3.2 → Earth sciences → Environmental science
Aerosol, climate modelling, Asian aerosols, ECHAM, NorESM

description: Monthly gridded netcdf data from ECHAM6.1 and NorESM1 models using MacSP-v2 anthropogenic aerosol descriptions, including all nine anthropogenic aerosol plumes (files named "all") or with South and East Asian aerosol plumes turned off (files named "aoff"). Both models used their intrinsic slab ocean configurations and background aerosols. All files have been averaged over last 60 years of climate model data from a 100-year equilibrium climate model run for current day climate. *T_decomposition* -files contain calculated surface temperature response associated with each energetic pathway (see original publication describing the method). Some NorESM data (but not all) has been regridded to native spatial resolution ECHAM6.1 model runs. Variable names follow standard CMIP5 naming protocol in *MACSP* files, which contain the energetic flux and temperature (+precipitation) data. *Forcing* files contain the top-of-atmosphere total (direct+indirect) and indirect forcing components, calculated online with double radiation calls during the climate runs.To calculate e.g. forcing due to South and East Asian anthropogenic aerosols alone, one needs to substract "AOFF" fields from "all" fields". Also, a python code for the calculation of Taylor decomposition is included. Main reference where data will be published and described: Merikanto, J., Nordling, K., Räisänen, P., Räisänen, J., O'Donnell, D., Partanen, A.I., and Korhonen, K.: How Asian aerosols impact regional surface temperatures across the globe, submitted to Atmos. Chem. Phys., 2020. Additional references describing methods and climate model runs: Nordling, K., Korhonen, H., Räisänen, P., Alper, M. E., Uotila, P., O'Donnell, D., and Merikanto, J.: Role of climate model dynamics in estimated climate responses to anthropogenic aerosols, Atmos. Chem. Phys., 19, 9969–9987, https://doi.org/10.5194/acp-19-9969-2019, 2019. Räisänen, J.: An energy balance perspective on regional CO2-induced temperature changes in CMIP5 models. Clim. Dyn. 48:3441–3454, 2017.
Sensitivity to millicharged particles in future proton-proton collisions at the LHC
Creators: name: Ball, A.
name: Brooke, J.
name: Campagnari, C.
name: Carrigan, M.
name: Citron, M.
name: De Roeck, A
name: Ezzeldine, M.
name: Francis, B.
name: Gastal, M.
name: Ghimire, M.
name: Goldstein, J.
name: Golf, F.
name: Haas, A.
name: Heller, R.
name: Hill, C. S.
name: Lavezzo, L.
name: Loos, R.
name: Lowette, S.
name: Manley, B.
name: Marsh, B.
name: Miller, D. W.
name: Odegard, B.
name: Schmitz, R.
name: Shakeshaft, F. Setti H.
name: Stuart, D.
name: Swiatlowski, M.
name: Yoo, J.
name: Zaraket, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report on the expected sensitivity of dedicated scintillator-based detectors at the LHC for elementary particles with charges much smaller than the electron charge. The dataset provided by a prototype scintillator-based detector is used to characterise the performance of the detector and provide an accurate background projection. Detector designs, including a novel slab detector configuration, are considered for the data taking period of the LHC to start in 2022 (Run 3) and for the high luminosity LHC. With the Run 3 dataset, the existence of new particles with masses between 10 MeV and 45 GeV could be excluded at 95% confidence level for charges between 0.003e and 0.3e, depending on their mass. With the high luminosity LHC dataset, the expected limits would reach between 10 MeV and 80 GeV for charges between 0.0018e and 0.3e, depending on their mass
Global Exponential Stability of Delayed Periodic Dynamical Systems
Creators: name: Zheng, Yanxu
name: Chen, Tianping
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In this paper, we discuss delayed periodic dynamical systems, compare capability of criteria of global exponential stability in terms of various $L^{p}$ ($1\le p
A Self-adaptive SAC-PID Control Approach based on Reinforcement Learning for Mobile Robots
Creators: name: Yu, Xinyi
name: Fan, Yuehai
name: Xu, Siyu
name: Ou, Linlin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Proportional-integral-derivative (PID) control is the most widely used in industrial control, robot control and other fields. However, traditional PID control is not competent when the system cannot be accurately modeled and the operating environment is variable in real time. To tackle these problems, we propose a self-adaptive model-free SAC-PID control approach based on reinforcement learning for automatic control of mobile robots. A new hierarchical structure is developed, which includes the upper controller based on soft actor-critic (SAC), one of the most competitive continuous control algorithms, and the lower controller based on incremental PID controller. Soft actor-critic receives the dynamic information of the mobile robot as input, and simultaneously outputs the optimal parameters of incremental PID controllers to compensate for the error between the path and the mobile robot in real time. In addition, the combination of 24-neighborhood method and polynomial fitting is developed to improve the adaptability of SAC-PID control method to complex environments. The effectiveness of the SAC-PID control method is verified with several different difficulty paths both on Gazebo and real mecanum mobile robot. Futhermore, compared with fuzzy PID control, the SAC-PID method has merits of strong robustness, generalization and real-time performance.
description: 20 oages, 12 figures
title: Merikanto et al: How Asian aerosols impact regional surface temperatures across the globe, submitted to ACP; NorESM1 and ECHAM6.1 data
Creators: name: Joonas Merikanto, Kalle Nordling
Publisher: name: https://b2share.eudat.eu
Year: 2020
Subjects: 3.3.2 → Earth sciences → Environmental science
Asian aerosols, temperature decomposition, ECHAM6.1, NorESM1

description: Monthly gridded netcdf data from ECHAM6.1 and NorESM1 models using MacSP-v2 anthropogenic aerosol descriptions, including all nine anthropogenic aerosol plumes (files named "SP2005") or with South and East Asian aerosol plumes turned off (files named "NOASIA"). Both models used their intrinsic slab ocean configurations and background aerosols. Files contain last 60 years of climate model data from a 100-year equilibrium climate model run for current day climate. *T_DECOMPOSITION* -files contain calculated surface temperature responses associated with each energetic pathway (see original publication describing the method). The data has been regridded to the same resolution for both models, with 47 hybrid sigma pressure levels and, 144 latitudes and 96 longitudes (see mygrid -file). Variable names follow standard CMIP5 naming protocol in "RENAMED" files, which contain the energetic flux and temperature (+precipitation) data. "FORCING" files contain the top-of-atmosphere total (direct+indirect), direct and indirect forcing components due to removal of Asian aerosols, calculated online with double radiation calls during the climate runs.. Also, a python code "RY15" for the calculation of Taylor decomposition is included (the code works only for SW components, a more complete code for the full decomposition will be available shortly from Kalle Nordling!). Mantras with cdo commands for the calculation of LW, CONV and SURF components are provided in "mantras" file, which is meant to be used with separately available ECHAM radiative kernels (see mantras -file). Main reference where data will be published and described: Merikanto, J., Nordling, K., Räisänen, P., Räisänen, J., O'Donnell, D., Partanen, A.I., and Korhonen, K.: How Asian aerosols impact regional surface temperatures across the globe, submitted to Atmos. Chem. Phys., 2020. Additional references describing methods and climate model runs: Nordling, K., Korhonen, H., Räisänen, P., Alper, M. E., Uotila, P., O'Donnell, D., and Merikanto, J.: Role of climate model dynamics in estimated climate responses to anthropogenic aerosols, Atmos. Chem. Phys., 19, 9969–9987, https://doi.org/10.5194/acp-19-9969-2019, 2019. Räisänen, J.: An energy balance perspective on regional CO2-induced temperature changes in CMIP5 models. Clim. Dyn. 48:3441–3454, 2017.
Factorization of the Non-Stationary Schrodinger Operator
Creators: name: Cerejeiras, P.
name: Vieira, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 30G35; Secondary 35A08, 15A66

description: We consider a factorization of the non-stationary Schrodinger operator based on the parabolic Dirac operator introduced by Cerejeiras/ Kahler/ Sommen. Based on the fundamental solution for the parabolic Dirac operators, we shall construct appropriated Teodorescu and Cauchy-Bitsadze operators. Afterwards we will describe how to solve the nonlinear Schrodinger equation using Banach fixed point theorem.
description: Accepted for publication in Advances in Applied Clifford Algebras
Rare-Earth Tetraborides RB$_4$: Analysis of Trends in the Electronic Structure
Creators: name: Yin, Z. P.
name: Pickett, W. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Both the basic electronic structure of tetraborides, and the changes across the lanthanide series in $R$B$_4$ ($R$ = rare earth) compounds, are studied using the correlated band theory LDA+U method in the all-electron Full Potential Local Orbital (FPLO) code. A set of boron bonding bands can be identified that are well separated from the antibonding bands. Separately, the ``dimer B'' $2p_z$ orbital is non-bonding ({\it viz.} graphite and MgB$_2$), and mixes strongly with the metal 4d or $5d$ states that form the conduction states. The bonding bands are not entirely filled even for the trivalent compounds (thus the cation $d$ bands have some filling), which accounts for the lack of stability of this structure when the cations are divalent (with more bonding states unfilled). The trends in the mean $4f$ level for both majority and minority, and occupied and unoccupied, states are presented and interpreted.
description: 10 pages, 9 figures
Gamma rays and neutrinos from RX J1713.7-3946 in a lepto-hadronic scenario
Creators: name: Cristofari, Pierre
name: Niro, Viviana
name: Gabici, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The gamma-ray emission of RX J1713.7-3946, despite being extensively studied in the GeV and TeV domain, remains poorly understood. This is mostly because in this range, two competing mechanisms can efficiently produce gamma rays: the inverse Compton scattering of accelerated electrons, and interactions of accelerated protons with nuclei of the ISM. In addition to the acceleration of particles from the thermal pool, the reacceleration of pre-existing CRs is often overlooked, and shall in fact also been taken into account. Especially, because of the distance to the SNR ($\sim 1$ kpc), and the low density in which the shock is currently expanding ($\sim 10^{-2}$ cm$^{-3}$), the re-acceleration of CR electrons pre-existing in the ISM, can account for a significant fraction of the observed gamma-ray emission, and contribute to the shaping of the spectrum in the GeV-TeV range. Remarkably, this emission of leptonic origin is found to be close to the level of the gamma-ray signal in the TeV range, provided that the spectrum of pre-exisiting cosmic ray electrons is similar to the one observed in the local interstellar medium. The overall gamma-ray spectrum of RX J1713.7-3946 is naturally produced as the sum of a leptonic emission from reaccelerated CR electrons, and a subdominant hadronic emission from accelerated protons. We also argue that neutrino observations with next-generation detectors might lead to a detection even in the case of a lepto-hadronic origin of the gamma-ray emission.
description: 6 pages, 4 figures, accepted for publication in MNRAS
Shadows and lensing of black holes immersed in strong magnetic fields
Creators: name: Junior, Haroldo C. D. Lima
name: Cunha, Pedro V. P.
name: Herdeiro, Carlos A. R.
name: Crispino, Luís C. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the null geodesic flow and in particular the light rings (LRs), fundamental photon orbits (FPOs) and shadows of a black hole (BH) immersed in a strong, uniform magnetic field, described by the Schwarzschilld-Melvin electrovacuum solution. The empty Melvin magnetic Universe contains a tube of planar LRs. Including a BH, for weak magnetic fields, the shadow becomes oblate, whereas the intrinsic horizon geometry becomes prolate. For strong magnetic fields (over-critical solutions), there are no LRs outside the BH horizon, a result explained using topological arguments. This feature, together with the light confining structure of the Melvin Universe yields \textit{panoramic shadows}, seen (almost) all around the equator of the observer's sky. Despite the lack of LRs, there are FPOs, including polar planar ones, which define the shadow edge. We also observe and discuss chaotic lensing, including in the empty Melvin Universe, and multiple disconnected shadows.
description: Matches the version published in Physical Review D, typos corrected, 17 pages, 11 figures
Ecoli contig filter based on length and coverage
Creators: name: Nindo, Fredrick
name: K. Kikwai, Gilbert
name: Juma, Bonventure
Publisher: name: figshare
Year: 2022
Subjects: subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences

description: These two scripts takes in put a file of contigs and applies filter thresholds which can either be based on length and/or coverage.
Dependence Analysis for the Exchange Rate Data using Extreme Value Copulas
Creators: name: Jaruchat Busaba
Publisher: name: Mahasarakham University
Year: 2014
Subjects: bivariate generalized extreme value distribution, bivariate generalized pareto distribution, parameter estimation, extreme value copulas, dependence function, tail probability, tail dependence

description: 2, 33, Journal of SCIENCE and TECHNOLOGY Mahasarakham University
Simulating the Galactic Multi-messenger Emissions with HERMES
Creators: name: Dundovic, Andrej
name: Evoli, Carmelo
name: Gaggero, Daniele
name: Grasso, Dario
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The study of non-thermal processes such as synchrotron emission, inverse Compton scattering, bremsstrahlung and pion production is crucial to understand the properties of the Galactic cosmic-ray population, to shed light on their origin and confinement mechanisms, and to assess the significance of exotic signals possibly associated to new physics. We present a public code called HERMES aimed at generating sky maps associated to a variety of multi-messenger and multi-wavelength radiative processes, spanning from the radio domain all the way up to high-energy gamma-ray and neutrino production. We describe the physical processes under consideration, the code concept and structure, and the user interface, with particular focus on the python-based interactive mode. We especially present the modular and flexible design that allows to easily further extend the numerical package according to the user's needs. In order to demonstrate the capabilities of the code, we describe in detail a comprehensive set of sky maps and spectra associated to all physical processes included in the code. We comment in particular on the radio, gamma-ray, and neutrino maps, and mention the possibility to study signals stemming from dark matter annihilation. HERMES can be successfully applied to constrain the properties of the Galactic cosmic-ray population, improve our understanding of the diffuse Galactic radio, gamma--ray, and neutrino emission, and search for signals associated to particle dark matter annihilation or decay.
description: 16 pages, 10 figures. The code presented in this paper is available at https://github.com/cosmicrays/hermes/releases/tag/v1.0.0 and tagged with 1.0.0 (May 4, 2021)
Care demands, distress, and psychological well-being of family caregivers of persons with advanced cancer living in the home
Creators: name: Bredin, Colleen Blair
Publisher: name: University of British Columbia
Year: 2010

description: This is a descriptive correlational study designed to examine family caregivers' perceptions of care demands of persons with advanced cancer living in the home setting, perceptions of distress in relation to these demands, and the caregivers' psychological well-being. In addition, the relationships among these variables were explored. The Lazarus and Folkman (1984) theory of stress, appraisal, and coping guided this study. A convenience sample of 40 family caregivers who were providing care in the home to a relative with advanced cancer completed the Caregiver (Stressor) Inventory, a revised Maslach Burnout Inventory, and a participant information sheet. Overall, the majority of cancer patients in this study were minimally dependent on their caregiver. A small proportion required moderate assistance with various care demands and no cancer patients were totally dependent on their caregiver. The type of assistance that was required was reflective of the patients' physical, psychological, and illness treatments needs. The majority of family caregivers experienced mild perceptions of distress in relation to various patient care demands. A small proportion experienced no distress. The overall demand for patient care was significantly related to caregivers' perceptions of distress (rho=.51). The outcomes of caregiving were examined in relation to emotional exhaustion, depersonalization, and personal accomplishment which are manifestations of burnout. Approximately half the family caregivers were found to experience moderate to high levels of emotional exhaustion and/or low levels of personal accomplishment, and a small proportion experienced feelings of depersonalization. Significant positive relationships were found between caregivers' overall perceptions of distress and the manifestation of emotional exhaustion and depersonalization but not to personal accomplishment. The components of burnout were not related to the overall demand for patient care. This finding suggests that caregivers' subjective appraisal of distress had a greater impact on caregivers' psychological well-being than did the actual hands—on demand to provide patient care. The findings of this study were discussed in relation to parallel research studies, methodological limitations, and the theoretical framework. As well, implications for nursing practice, theory and education, and recommendations for future research were identified.
c2d Spitzer IRS Spectra of Disks around T Tauri Stars. III. [Ne II], [Fe I], and H_2 gas-phase lines
Creators: name: Lahuis, Fred
name: van Dishoeck, Ewine F.
name: Blake, Geoffrey A.
name: Evans, Neal J.
name: Kessler-Silacci, Jacqueline E.
name: Pontoppidan, Klaus M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a survey of mid-infrared gas-phase lines toward a sample of 76 circumstellar disks around low mass pre-main sequence stars from the Spitzer "Cores to Disks" legacy program. We report the first detections of [Ne II] and [Fe I] toward classical T Tauri stars in ~20% respectively ~9% of our sources. The observed [Ne II] line fluxes and upper limits are consistent with [Ne II] excitation in an X-ray irradiated disk around stars with X-ray luminosities L_X=10^{29}-10^{31} erg s^{-1}. [Fe I] is detected at ~10^-5-10^-4 L_Sun, but no [S I] or [Fe II] is detected down to ~10^{-6} L_Sun. The [Fe I] detections indicate the presence of gas-rich disks with masses of >~0.1 M_J. No H_2 0-0 S(0) and S(1) disk emission is detected, except for S(1) toward one source. These data give upper limits on the warm (T~100-200K) gas mass of a few Jovian masses, consistent with recent T Tauri disk models which include gas heating by stellar radiation. Compact disk emission of hot (T>~500K) gas is observed through the H_2 0-0 S(2) and/or S(3) lines toward ~8% of our sources. The line fluxes are, however, higher by more than an order of magnitude than those predicted by recent disk models, even when X-ray and excess UV radiation are included. Similarly the [Ne II]/H_2 0-0 S(2) ratios for these sources are lower than predicted, consistent with the presence of an additional hot molecular gas component not included in current disk models. Oblique shocks of stellar winds interacting with the disk can explain many aspects of the hot gas emission, but are inconsistent with the non-detection of [S I] and [Fe II] lines.
description: Accepted for publication in ApJ. 19 pages, 11 figures, and 4 tables, f7,f10a, f11a, and f11b replaced with slightly modified versions
Exact entanglement growth of a one-dimensional hard-core quantum gas during a free expansion
Creators: name: Scopa, Stefano
name: Krajenbrink, Alexandre
name: Calabrese, Pasquale
name: Dubail, Jérôme
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the non-equilibrium dynamics of the entanglement entropy of a one-dimensional quantum gas of hard-core particles, initially confined in a box potential at zero temperature. At $t=0$ the right edge of the box is suddenly released and the system is let free to expand. During this expansion, the initially correlated region propagates with a non-homogeneous profile, leading to the growth of entanglement entropy. This setting is investigated in the hydrodynamic regime, with tools stemming from semi-classical Wigner function approach and with recent developments of quantum fluctuating hydrodynamics. Within this framework, the entanglement entropy can be associated to a correlation function of chiral twist-fields of the conformal field theory that lives along the Fermi contour and it can be exactly determined. Our predictions for the entanglement evolution are found in agreement with and generalize previous results in literature based on numerical calculations and heuristic arguments.
description: 27 pages, 8 figures; v2: minor changes
title: “Право на биографию” и русская мемуаристика 1740-70-х гг
Creators: name: Veselova, Aleksandra
Publisher: name: AvtobiografiЯ
Year: 2020

description: The paper discusses the early period of development of Russian memoirs (1730-1770). The Russian situation at this time is fundamentally different from the European one. Very few memoirs have been created: only 12 texts written at that time were selected to study. Memoir literature had no context; the tradition of narrative literature was also still poorly developed. Therefore, the study of the pragmatics of these works, reflecting the origin of the memoir genre in Russia, is of particular interest. The article also raises the question what could be used as a model for authors. It is suggested that noble genealogies and track records (sluzhebnajaskaska) could be such a model. The article concludes that early Russian memoirs reflect a difficult stage for the new Russian class, at which it sought to reconcile the need to list personal achievements with eschatological motives.
Weak localization in GaMnAs: evidence of impurity band transport
Creators: name: Rokhinson, L. P.
name: Lyanda-Geller, Y.
name: Ge, Z.
name: Shen, S.
name: Liu, X.
name: Dobrowolska, M.
name: Furdyna, J. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the observation of negative magnetoresistance in the ferromagnetic semiconductor GaMnAs at low temperatures ($T<3$ K) and low magnetic fields ($0< B <20$ mT). We attribute this effect to weak localization. Observation of weak localization provides a strong evidence of impurity band transport in these materials, since for valence band transport one expects either weak anti-localization due to strong spin-orbit interactions or total suppression of interference by intrinsic magnetization. In addition to the weak localization, we observe Altshuler-Aronov electron-electron interactions effect in this material.
description: 5 pages, 4 figure
Higher fully-charmed tetraquarks: Radial excitations and P-wave states
Creators: name: Wang, Guang-Juan
name: Meng, Lu
name: Oka, Makoto
name: Zhu, Shi-Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We systematically calculate the mass spectrum of the higher excited fully-charmed tetraquark $cc\bar c\bar c$ states including the S-wave radial excitations and the P-wave states with a nonrelativistic quark model. The quark model is composed of a vector one-gluon-exchange (OGE) and a scalar linear confinement interaction with the parameters determined by the charmonium spectrum. In the calculation, we consider both the $3_c-\bar 3_c$ and the $6_c-\bar{6}_c$ color representations. For the $cc\bar c\bar c $ state, the $6_c-\bar 6_c$ component is located lower than the $\bar 3_c-3_c$ one because of the stronger attractive interactions between the diquark and antidiquark. We focus on two excited modes and their properties for the P-wave tetraquarks. The mass splitting for the $ρ$-mode excitations with different color configurations is large. The low-lying $6_c-\bar 6_c$ $ρ$-mode component helps to explain the small mass gap between the ground S-wave and the P-wave tetraquark states. The recently observed $X(6900)$ state may be the candidate of the first radially excited tetraquarks with $J^{PC}=0^{++}$ or $2^{++}$, or the $1^{+-}$ or $2^{-+}$ P-wave states based on the mass spectrum. Moreover, the lowest $T_c$ states with the exotic $J^{PC}$ quantum numbers $0^{--}$ and $1^{-+}$ may decay into the P-wave $η_c J/ψ$ and di-$J/ψ$ modes, respectively. The future experimental search of these $T_c$ states will enrich the hadronic spectrum.
description: 15 pages, 3 figures. Version published in PRD
Probing physical properties of confined fluids within individual nanobubbles
Creators: name: Taverna, D.
name: Kociak, M.
name: Stéphan, O.
name: Fabre, A.
name: Finot, E.
name: Décamps, B.
name: Colliex, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spatially resolved electron energy-loss spectroscopy (EELS) in a scanning transmission electron microscope (STEM) has been used to investigate as fluidic phase in nanoubbles embedded in a metallic Pd90Pt10 matrix. Using the 1s->2p excitation of the He atoms, maps of the He distribution, in particular of its density an pressure in bubbles of different diameter have been realized, thus providing an indication of the involved bubble formation mechanism. However, the short-range Pauli repulsion mechanism between electrons on neighboring atoms seems insufficient to interpret minute variations of the local local measurements performed at the interface between the metal and the He bubble. Simulations relying on the continuum dielectric model have show that these deviations could be interpreted as an interfzce polarization effect on the He atomic transition, which should be accounted for when measuring the densities within the smaller bubbles.
description: 4 pages, 4 figures
ATLAS Discovery Potential for the Charged Higgs Boson in H+ to tau nu Decays
Creators: name: Mohn, Bjarte
name: Flechl, Martin
name: Alwall, Johan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This paper has been withdrawn by the authors in order to comply with the ATLAS publication policy and is now only available via the CERN cdsweb (http://cdsweb.cern.ch/record/984015)
description: This paper has been withdrawn
Effective theory of color superconductivity
Creators: name: Hong, Deog Ki
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We briefly review an effective theory of QCD at high baryon density, describing the relevant modes near the Fermi surface. The high density effective theory has properties of reparametrization invariance and gauge invariance, maintained in a subtle way. It also has a positive measure, allowing lattice simulations at high baryon density. We then apply it to gapless superconductors and discuss recent proposals to resolve the magnetic instability of gapless superconductivity.
description: 8 pages, 3 figures; To appear in the proceedings of YKIS Seminar on New Frontiers in QCD, Kyoto, Japan, 20 Nov - 8 Dec 2006
On dynamical gluon mass generation
Creators: name: Aguilar, A. C.
name: Papavassiliou, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The effective gluon propagator constructed with the pinch technique is governed by a Schwinger-Dyson equation with special structure and gauge properties, that can be deduced from the correspondence with the background field method. Most importantly the non-perturbative gluon self-energy is transverse order-by-order in the dressed loop expansion, and separately for gluonic and ghost contributions, a property which allows for a meanigfull truncation. A linearized version of the truncated Schwinger-Dyson equation is derived, using a vertex that satisfies the required Ward identity and contains massless poles. The resulting integral equation, subject to a properly regularized constraint, is solved numerically, and the main features of the solutions are briefly discussed.
description: Special Article - QNP2006: 4th International Conference on Quarks and Nuclear Physics, Madrid, Spain, 5-10 June 2006
MDMMT: Multidomain Multimodal Transformer for Video Retrieval
Creators: name: Dzabraev, Maksim
name: Kalashnikov, Maksim
name: Komkov, Stepan
name: Petiushko, Aleksandr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We present a new state-of-the-art on the text to video retrieval task on MSRVTT and LSMDC benchmarks where our model outperforms all previous solutions by a large margin. Moreover, state-of-the-art results are achieved with a single model on two datasets without finetuning. This multidomain generalisation is achieved by a proper combination of different video caption datasets. We show that training on different datasets can improve test results of each other. Additionally we check intersection between many popular datasets and found that MSRVTT has a significant overlap between the test and the train parts, and the same situation is observed for ActivityNet.
Noise-Induced Sampling of Alternative Hamiltonian Paths in Quantum Adiabatic Search
Creators: name: Gaitan, Frank
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We numerically simulate the effects of noise-induced sampling of alternative Hamiltonian paths on the ability of quantum adiabatic search (QuAdS) to solve randomly generated instances of the NP-Complete problem N-bit Exact Cover 3. The noise-averaged median runtime is determined as the noise-power and number of bits N are varied, and power-law and exponential fits are made to the data. Noise is seen to slowdown QuAdS, though a downward shift in the scaling exponent is found for N > 12 over a range of noise-power values. We discuss whether this shift might be connected to arguments in the literature that suggest that altering the Hamiltonian path might benefit QuAdS performance.
description: 16 pages; 5 figures; 4 tables; to appear in Complexity
Τοπίο και κοινωνικές ταυτότητες στη μυκηναϊκή Αργολίδα: προσεγγίζοντας την οργάνωση του χώρου με τη χρήση γεωγραφικών συστημάτων πληροφοριών
Creators: name: Ευκλείδου, Καλλιόπη Ι.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Ύστερη Εποχή του Χαλκού
Ταυτότητες
Τοπίο
Κοινωνική οργάνωση
Late Bronze Age
Identities
Landscape
Social organisation

description: Η διατριβή αυτή πραγματεύεται την οργάνωση του χώρου στη μυκηναϊκή Αργολίδα με στόχο να προσεγγίσει όψεις των κοινωνικών ταυτοτήτων των κατοίκων της και των μηχανισμών με τους οποίους οι ταυτότητες αυτές αναπαράγονταν, προβάλλονταν και μετατρέπονταν σε αντικείμενο κοινωνικής διαπραγμάτευσης. Το βασικό μεθοδολογικό εργαλείο, τα Γεωγραφικά Συστήματα Πληροφοριών, επιτρέπουν και διευρύνουν την ανάλυση της διαμόρφωσης και διαστάσεων της εμπειρίας του χώρου με συστηματικότητα. Ένα βασικό συμπέρασμα της μελέτης υπήρξε η διαπίστωση ότι καθ’ όλη τη διάρκεια της Υ.Ε.Χ. χρησιμοποιούνταν στρατηγικές που συνδέονται με την οργάνωση και διαμόρφωση του τοπίου, όπως η χωρική συσχέτιση/ αποσυσχέτιση, η αρχιτεκτονική επιδεικτική κατανάλωση, η χρήση δραματουργικών στοιχείων στον αρχιτεκτονικό σχεδιασμό, για το διαρκή χειρισμό των κοινωνικών ταυτοτήτων τόσο των δρώντων υποκειμένων όσο και όλων όσων βίωναν το τοπίο.
description: This dissertation investigates aspects of the spatial organization of different Mycenaean settlements in the Argolid in order to grasp the mechanisms used to demonstrate and manipulate social identities of the people who lived there. The methodological tool used, the Geographic Information Systems, allows for a systematic and broadened analysis of spatial patterns and the lived experience of the landscape. This study suggests that a variety of strategies, such as spatial association or disassociation, architectural conspicuous consumption, and use of dramaturgical elements in architectural design and implementation, was used in what appears to have been a constant concern with the display and manipulation of people’s social identities.
Semiclassical Theory of Bardeen-Cooper-Schrieffer Pairing-Gap Fluctuations
Creators: name: Olofsson, H.
name: Åberg, S.
name: Leboeuf, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superfluidity and superconductivity are genuine many-body manifestations of quantum coherence. For finite-size systems the associated pairing gap fluctuates as a function of size or shape. We provide a parameter free theoretical description of pairing fluctuations in mesoscopic systems characterized by order/chaos dynamics. The theory accurately describes experimental observations of nuclear superfluidity (regular system), predicts universal fluctuations of superconductivity in small chaotic metallic grains, and provides a global analysis in ultracold Fermi gases.
description: 4 pages, 2 figures
title: Инструменты памяти: лаборатория мемуаров Андрея Болотова
Creators: name: Miliutin, Mikhail
Publisher: name: AvtobiografiЯ
Year: 2020

description: The article discusses a range of issues related to the technology of a memoir text creating. A comparative analysis of Bolotov’s “Life and Adventures”, various works from the complex of his manuscript heritage (especially autobiographical ones) and archival documents allows us to clarify and adjust the traditional view on Bolotov’s memoirs, as created on the basis of diary entries; to reveale some plots of memoirs primarily based on rememberings and characterize them as manifestations of communicative memory; to consider the technology of using memory tools most relevant for Bolotov (books, drawings, things), occupying an intermediate position between personal remembering  and documentary evidence.
Role of the newly measured $B\to KD\bar{D}$ process to establish $χ_{c0}(2P)$ state
Creators: name: Duan, Ming-Xiao
name: Wang, Jun-Zhang
name: Li, Yu-Shuai
name: Liu, Xiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In this work, the branching ratio $\mathcal{B}[B\to Kχ_{c0}(2P)]$ is extracted for the first time through the fit fractions in the newly measured $B\to KD\bar{D}$ process by LHCb. With the rescattering mechanism, this extracted branching ratio is reproduced well. Our study further enforces the role of the newly measured $B\to KD\bar{D}$ process to establish the $χ_{c0}(2P)$ charmonium state, which is a crucial step when constructing charmonium family.
description: 9 figures, 2 figures and 2 tables. Version for publication in Phys. Rev. D
Coulomb scattering of the Dirac field on de Sitter expanding universe
Creators: name: Crucean, Cosmin
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The lowest order contribution of the amplitude of the Dirac-Coulomb scattering in de Sitter spacetime is calculated assuming that the initial and final states of the Dirac field are described by exact solutions of the free Dirac equation on de Sitter spacetime with a given momentum and helicity. One studies the difficulties that arises when one passes from the amplitude to cross section.
description: 12 pages, no figures
Entanglement Entropy of Non-Hermitian Free Fermions
Creators: name: Guo, Yi-Bin
name: Yu, Yi-Cong
name: Huang, Rui-Zhen
name: Yang, Li-Ping
name: Chi, Run-Ze
name: Liao, Hai-Jun
name: Xiang, Tao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the entanglement properties of non-Hermitian free fermionic models with translation symmetry using the correlation matrix technique. Our results show that the entanglement entropy has a logarithmic correction to the area law in both one-dimensional and two-dimensional systems. For any one-dimensional one-band system, we prove that each Fermi point of the system contributes exactly 1/2 to the coefficient c of the logarithmic correction. Moreover, this relation between c and Fermi point is verified for more general one-dimensional and two-dimensional cases by numerical calculations and finite-size scaling analysis. In addition, we also study the single-particle and density-density correlation functions.
description: 10 pages, 8 figures and 1 table, includes appendix
Excitation spectrum of bosons in a finite one-dimensional circular waveguide via the Bethe ansatz
Creators: name: Sykes, Andrew G.
name: Drummond, Peter D.
name: Davis, Matthew J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The exactly solvable Lieb-Liniger model of interacting bosons in one-dimension has attracted renewed interest as current experiments with ultra-cold atoms begin to probe this regime. Here we numerically solve the equations arising from the Bethe ansatz solution for the exact many-body wave function in a finite-size system of up to twenty particles for attractive interactions. We discuss the novel features of the solutions, and how they deviate from the well-known string solutions [H. B. Thacker, Rev. Mod. Phys.\ \textbf{53}, 253 (1981)] at finite densities. We present excited state string solutions in the limit of strong interactions and discuss their physical interpretation, as well as the characteristics of the quantum phase transition that occurs as a function of interaction strength in the mean-field limit. Finally we compare our results to those of exact diagonalization of the many-body Hamiltonian in a truncated basis. We also present excited state solutions and the excitation spectrum for the repulsive 1D Bose gas on a ring.
description: 13 pages, 12 figures
title: Письма А.Ф. Малиновского к графу Н.П. Шереметеву (1800-е гг.) как попытка автобиографии
Creators: name: Lavrinovich, Maia
Publisher: name: AvtobiografiЯ
Year: 2020

description: This article analyses the correspondence by Aleksei Fedorovich Malinovskii (1762–1840) from the point of view of his strategy of creating his new self as an innate nobleman. Covering the 1800s, his letters to Count Nikolai Petrovich Sheremetev (1751–1809) held at the Russian State Historical Archive in St.Petersburg (RGIA) have not yet received significant scholarly attention as an entire narrative that reveals social and cultural dimensions of Malinovskii’s personality. His correspondence with other persons is also drawn in order to demonstrate how these aspects developed in the next decades.
Low energy proton-proton scattering in effective field theory
Creators: name: Ando, Shung-ichi
name: Shin, Jae Won
name: Hyun, Chang Ho
name: Hong, Seung Woo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Low energy proton-proton scattering is studied in pionless effective field theory. Employing the dimensional regularization and MS-bar and power divergence subtraction schemes for loop calculation, we calculate the scattering amplitude in 1S0 channel up to next-to-next-to leading order and fix low-energy constants that appear in the amplitude by effective range parameters. We study regularization scheme and scale dependence in separation of Coulomb interaction from the scattering length and effective range for the S-wave proton-proton scattering.
description: 23 pages, 6 eps figures, revised considerably, accepted for publication in Phys. Rev. C
Capillary Flotation in a System of Two Immiscible Bose-Einstein Condensates
Creators: name: Ruban, Victor P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A spatially inhomogeneous, trapped two-component Bose-Einstein condensate of cold atoms in the phase separation mode has been numerically simulated. It has been demonstrated for the first time that the surface tension between the components makes possible the existence of drops of a denser phase floating on the surface of a less dense phase. Depending on the harmonic trap anisotropy and other system parameters, a stable equilibrium of the drop is achieved either at the poles or at the equator. The drop flotation sometimes persists even in the presence of an attached quantized vortex.
description: 4 pages, 7 figures, in English
title: “The primary pleasure now is History …”: the letters of N. M. Karamzin to M.N. Muravev
Creators: name: Dąbrowska, Magdalena
Publisher: name: AvtobiografiЯ
Year: 2020

description: The article discusses the letters of Nikolai M. Karamzin (1766–1826) to Mikhail N. Muravyov (1757–1807) during the period 1803–1807 from the perspective of the circumstances surrounding the creation of A History of the Russian State. The main body of the material is comprised of 15 letters published in a three-volume collection of the works of Karamzin in 1848; they are supplemented by a letter published by Laura Rossi in 2018. The first letter was written on 28 September 1803, and it contains a request from Karamzin about support for his efforts to receive financial assistance from Russian authorities for the preparation of A History of the Russian State. The letters by Karamzin to Muravyov, taken together with the writer’s letters to other individuals (the poet Ivan Dmitriyev and Karamzin’s brother Vasily), reflect the circumstances around the birth of the idea to compose an outline of the history of Russia (after the periodical “Vestnik Evropy” had ceased to be published) and the stages of the work on the initial volumes.
Community evolution in retweet networks
Creators: name: Evkoski, Bojan
name: Mozetic, Igor
name: Ljubesic, Nikola
name: Novak, Petra Kralj
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Communities in social networks often reflect close social ties between their members and their evolution through time. We propose an approach that tracks two aspects of community evolution in retweet networks: flow of the members in, out and between the communities, and their influence. We start with high resolution time windows, and then select several timepoints which exhibit large differences between the communities. For community detection, we propose a two-stage approach. In the first stage, we apply an enhanced Louvain algorithm, called Ensemble Louvain, to find stable communities. In the second stage, we form influence links between these communities, and identify linked super-communities. For the detected communities, we compute internal and external influence, and for individual users, the retweet h-index influence. We apply the proposed approach to three years of Twitter data of all Slovenian tweets. The analysis shows that the Slovenian tweetosphere is dominated by politics, that the left-leaning communities are larger, but that the right-leaning communities and users exhibit significantly higher impact. An interesting observation is that retweet networks change relatively gradually, despite such events as the emergence of the Covid-19 pandemic or the change of government.
First-principles study of defects at $\Sigma3$ grain boundaries in CuGaSe$_2$
Creators: name: Saniz, R.
name: bekaert, J.
name: Partoens, B.
name: Lamoen, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a first-principles computational study of cation-Se $Σ$3 (112) grain boundaries in CuGaSe$_2$. We discuss the structure of these grain boundaries, as well as the effect of native defects and Na impurities on their electronic properties. The formation energies show that the defects will tend to form preferentially at the grain boundaries, rather than in the grain interiors. We find that in Ga-rich growth conditions Cu vacancies as well as Ga at Cu and Cu at Ga antisites are mainly responsible for having the equilibrium Fermi level pinned toward the middle of the gap, resulting in carrier depletion. The Na at Cu impurity in its +1 charge state contributes to this. In Ga-poor growth conditions, on the other hand, the formation energies of Cu vacancies and Ga at Cu antisites are comparatively too high for any significant influence on carrier density or on the equilibrium Fermi level position. Thus, under these conditions, the Cu at Ga antisites give rise to a $p$-type grain boundary. Also, their formation energy is lower than the formation energy of Na at Cu impurities. Thus, the latter will fail to act as a hole barrier preventing recombination at the grain boundary, in contrast to what occurs in CuInSe$_2$ grain boundaries. We also discuss the effect of the defects on the electronic properties of bulk CuGaSe$_2$, which we assume reflect the properties of the grain interiors.
description: 7 pages, 4 figures