cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Disappearing Pulses in Vela X-1
Creators: name: Kretschmar, P.
name: Kreykenbohm, I.
name: Wilms, J.
name: Staubert, R.
name: Heindl, W. A.
name: Gruber, D. E.
name: Rothschild, R. E.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from a 20 h RXTE observation of Vela X-1, ncluding a peculiar low state of a few hours duration, during which the pulsation of the X-ray emission ceased, while significant non-pulsed emission remained. This ``quiescent state'' was preceded by a ``normal state'' without any unusual signs and followed by a ``high state'' of several hours of increased activity with strong, flaring pulsations. while there is clear spectral evolution from the normal state to the low state, the spectra of the following high state are surprisingly similar to those of the low state.
description: 5 pages, 5 figures, Proceedings of the 5th Compton Symposium, AIP, in press
Model Adaptation and Optimization for the Evaluation and Investigation of Novel Amine Blends in a Pilot-plant Scale CO2 Capture Process under Industrial Conditions
Creators: name: Wilhelm, Robert
name: Esche, Erik
name: Guettab, Zion
name: Menzel, Johannes
name: Thielert, Holger
name: Repke, Jens-Uwe
Publisher: name: Technische Universität Berlin
Year: 2018
Subjects: subject: 660 Chemische Verfahrenstechnik
subject: CO2 capture
subject: energy efficiency
subject: absorption
subject: monoethanolamine
subject: MEA

description: Carbon capture processes are highly energy intensive and the main driving force during the process design is the necessity to reduce the energy consumption for the solvent regeneration. The energy efficiency of absorption desorption processes is driven by the plant design and operation conditions, but also to a large extent by the choice of the scrubbing liquid (Wang et al., 2011). Absorbent screening for CO2 capture is timeconsuming and costly. Apart from the energy efficiency, aspects such as loading capacity and robustness towards industrial impurities and disturbances have to be investigated before designing a large-scale plant and optimally operating it. In this contribution, a systematic approach is presented to carry out evaluation tests for a novel solvent in an industrial pilot-plant and at the same time to determine an optimal operation point with maximum energy efficiency. The three-step approach is based on the assumption that for a novel absorbent little to no thermodynamic data is available. Hence, the investigation is solely based on simulation data from similar solvents and experimental data on the novel one. Monoethanolamine (MEA) still is widely used as reference absorbent for removing CO2. Consequently, simulation data and the properties of MEA are taken as a baseline for the general performance and behaviour of amine-based absorbents. As a first step, data from rigorous simulations is used to develop a surrogate model describing the general behaviour of a carbon capture process for MEA. Subsequently, pilot-plant-scale experiments are carried out to investigate the application of MEA in practice. Secondly, the surrogate model is then updated to account for the plant characteristics as given by the experimental data for MEA. Finally, by means of the MEA-based data-driven model, the new solvent is experimentally investigated. By successive approaches the surrogate model’s maximum in energy efficiency is identified and repeatedly updated for the novel solvent’s experimental behaviour. In terms of the energy efficiency and based on this workflow the performance of the novel solvent is compared with MEA.
New Universality of Baryon Isgur--Wise Form Factor in the Large $N_c$ limit
Creators: name: Chow, Chi-Keung
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: New universality appears for the baryon Isgur--Wise form factor in the large $N_c$ limit. It is found that the semileptonic $Λ_b \rightarrow Λ_c$ and $Σ_b^{(*)} \rightarrow Σ^{(*)}_c$ decays are described by the same form factor, which can be calculated analytically. In the exact chiral $SU(3)$ limit, the same form factor is applicable to semileptonic $Ω_b^{(*)} \rightarrow Ω^{(*)}_c$ decays.
description: 5 pages in REVTEX galley style, CALT-68-1946
The optical properties of dibenzoterrylene
Creators: name: Sadeq, Z. S.
name: Muniz, Rodrigo A.
name: Sipe, J. E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Dibenzoterrylene (DBT) has garnered interest as a potential single photon source (SPS). To have a better grasp of any possible limitations of using DBT for this application, a better understanding of its optical properties is needed. We use a configuration interaction (CI) strategy to calculate the many body wavefunctions of DBT, and we use these wavefunctions to calculate its optical properties. We calculate the linear absorption spectrum and the spatial distributions of electrons involved in several bright transitions. We also calculate the two-photon absorption spectrum of DBT and show that there are several excited states that are bright due to two-photon absorption. Except at high photon energies, we predict that there are no competing optical processes regarding the use of DBT as a SPS. Our calculations provide details of the optical properties of DBT that are interesting in general, and useful for considering optical applications of DBT.
description: 11 pages, 4 figures
SMATASY - A program for the model independent description of the Z resonance
Creators: name: Kirsch, S.
name: Riemann, T.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: SMATASY is an interface for the ZFITTER package and may be used for the model independent description of the Z resonance at LEP 1 and SLC. It allows the determination of the Z mass and width and its resonance shape parameters r and j for cross-sections and their asymmetries. The r describes the peak height and j the interference of the Z resonance with photon exchange in each scattering channel and for $σ_T$, $σ_{FB}$, $σ_{lr}$, $σ_{pol}$ etc. separately. Alternatively, the helicity amplitudes for a given scattering channel may be determined. We compare our formalism with other model independent approaches. The model independent treatment of QED corrections in SMATASY is applicable also far away from the Z peak.
description: 25 pages (LaTeX), 5 figures, 1 table, see also http://www-zeuthen.desy.de/~riemann/ or http://hpl3sn02.cern.ch/homepages/gruenew/
QO'SHMA SO'ZLARNING VUJUDGA KELISHI HAQIDA
Creators: name: Xudoyqulova, Shoxistaxon
name: Yarqinboyeva, Sayyora
name: Mamatqulov, Azizbek
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada  o‘zbek tilshunosligida so‘z yasalishi bilan bog‘liq bo‘lgan ancha jiddiy masalalar haqida fikr yuritiladi. So‘z yasalish usullari haqidagi mavjud qarashlarga aniqlik kiritish masalasi ham ko‘rib chiqilganligi va so‘z yasash  imkoniyatlari  yoritilgan.
Riding behavior and electric bike traffic crashes: A Chinese case-control study
Creators: name: Qian, Yining
name: Sun, Qiannan
name: Fei, Gaoqiang
name: Li, Xinyu
name: Stallones, Lorann
name: Xiang, Henry
name: Zhang, Xujun
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Objective: The present case-control study sought to explore at-risk riding behaviors associated with e-bike related traffic crashes among e-bike riders in China. Methods: Cases were recruited from residents aged 16 years and over in communities which stated “selected e-bikes as travel tools and experienced traffic crashes in the last year”. Two controls for each case were randomly selected from a population of e-bike riders who had not experienced a traffic crash in the past year. The cases and controls were matched by gender, age (within 5 years) and school education level. Data were collected using questionnaires and face-to-face interviews from July 2015 to September 2015 in China. After conducting univariate logistic analysis on study variables, a conditional logistic regression model based on the 1:2 matched case-control study design was developed. Results: Multiple-factor conditional logistic regression analysis of e-bike related traffic crashes showed that running red lights (always vs. never, AOR = 3.094, 95% CI, 1.077-8.891, P < .05), riding after drinking (yes vs. no, AOR = 1.578, 95% CI, 1.102-2.259, P < .05), carrying adults while riding (always vs. never, AOR = 2.140, 95% CI, 1.273-3.595, P < .05), turning without signaling (sometimes vs. never, AOR = 1.446, 95% CI, 1.805-1.928, P < .05), riding in the motor vehicle lane (always vs. never, AOR = 2.413, 95% CI, 1.576-3.695, P < .01), prior crash history (yes vs. no, AOR = 1.670, 95% CI, 1.257-2.220, P < .05), and type of e-bikes (scooter-style e-bikes vs. bicycle-style e-bikes, AOR = 1.471, 95% CI, 1.068-2.026, P < .05) were identified as possible risk factors for e-bike traffic crashes. Conclusion: The findings of this research provide evidence about specific risky behaviors related to road traffic crashes involving e-bikes and indicated that behavioral intervention and education need to be strengthened to reduce dangerous riding behaviors. These results will be helpful for design of e-bike road risk prevention programs.
Greybody factors for a minimally coupled scalar field in three-dimensional Einstein-power-Maxwell black hole background
Creators: name: Panotopoulos, Grigoris
name: Rincon, Angel
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the present work we study the propagation of a probe minimally coupled scalar field in Einstein-power-Maxwell charged black hole background in (1+2) dimensions. We find analytical expressions for the reflection coefficient as well as for the absorption cross-section in the low energy regime, and we show graphically their behaviour as functions of the frequency for several values of the free parameters of the theory.
description: 6 pages, 3 figures, to appear in: Physical Review D
The Two-Component Virial Theorem and the Physical Properties of Stellar Systems
Creators: name: Dantas, Christine C.
name: Ribeiro, Andre L. B.
name: Capelato, Hugo V.
name: de Carvalho, Reinaldo R.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Motivated by present indirect evidences that galaxies are surrounded by dark matter halos, we investigate whether their physical properties can be described by a formulation of the virial theorem which explicitly takes into account the gravitational potential term representing the interaction of the dark halo with the barionic or luminous component. Our analysis shows that the application of such a ``two-component virial theorem'' not only accounts for the scaling relations displayed, in particular, by elliptical galaxies, but also for the observed properties of all virialized stellar systems, ranging from globular clusters to galaxy clusters.
description: 13 pages, 2 figures, LaTeX, corrected few typos. This version matches the published version
Timing Recollision in Nonsequential Double Ionization by Intense Elliptically Polarized Laser Pulses
Creators: name: Kang, H.
name: Henrichs, K.
name: Kunitski, M.
name: Wang, Y.
name: Hao, X.
name: Fehre, K.
name: Czasch, A.
name: Eckart, S.
name: Schmidt, L. Ph. H.
name: Schoffler, M.
name: Jahnke, T.
name: Liu, X.
name: Dorner, R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We examine correlated electron and doubly charged ion momentum spectra from strong field double ionization of Neon employing intense elliptically polarized laser pulses. An ellipticity-dependent asymmetry of correlated electron and ion momentum distributions has been observed. Using a 3D semiclassical model, we demonstrate that our observations reflect the sub-cycle dynamics of the recollision process. Our work reveals a general physical picture for recollision-impact double ionization with elliptical polarization, and demonstrates the possibility of ultrafast control of the recollision dynamics.
description: 6 pages, 5 figures
Order $α_s^{2}$ contributions to the Drell-Yan cross section at fixed target energies
Creators: name: Rijken, P. J.
name: van Neerven, W. L.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: {}From the literature one infers that the bulk of the order $α_{s}$ corrections to the Drell-Yan cross sections $dσ/dm$ and $m^{3}d^{2}σ/dmdx_{F}$ is constituted by the soft plus virtual gluon part of the coefficient function. In the case of $dσ/dm$ it can be shown that at fixed target energies the effect of the exact order $α_{s}^{2}$ corrected coefficient function is very well approximated by its soft plus virtual gluon part. Since the complete order $α_{s}^{2}$ contribution to the coefficient function is missing we have to assume that the same approximation also holds for $m^{3}d^{2}σ/dmdx_{F}$. It appears that the discrepancy between the exact order $α_{s}$ corrected cross section and the massive lepton pair data taken at fixed target experiments can be partially explained by including the order $α_{s}^{2}$ soft plus virtual gluon part of the coefficient function.
description: 50 p., INLO-PUB-14/94
Additional file 1: of Efficacy and safety of cefazolin versus antistaphylococcal penicillins for the treatment of methicillin-susceptible Staphylococcus aureus bacteremia: a systematic review and meta-analysis
Creators: name: Shi, Changcheng
name: Xiao, Yubo
name: Zhang, Qi
name: Li, Qingyu
name: Wang, Fei
name: Wu, Jing
name: Lin, Nengming
Publisher: name: figshare
Year: 2018
Subjects: Space Science
Medicine
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Science Policy

description: Table S1. Characteristics of the studies included in the meta-analysis. Table S2. Quality of assessment for included studies. Table S3. Sensitivity analysis assessing mortality. (DOCX 24 kb)
title: ADCO, Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Cart. 31 (G 135), 549 folios, f. 0847
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0847, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0847, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
On the Definition of Velocity in Discrete-Time, Stochastic Langevin Simulations
Creators: name: Grønbech-Jensen, Niels
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We systematically develop beneficial and practical velocity measures for accurate and efficient statistical simulations of the Langevin equation with direct applications to computational statistical mechanics and molecular dynamics sampling. Recognizing that the existing velocity measures for the most statistically accurate discrete-time Verlet-type algorithms are inconsistent with the simulated configurational coordinate, we seek to create and analyze new velocity companions that both improve existing methods as well as offer practical options for implementation in existing computer codes. The work is based on the set of GJ methods that, of all methods, for any time step within the stability criteria correctly reproduces the most basic statistical features of a Langevin system; namely correct Boltzmann distribution for harmonic potentials and correct transport in the form of drift and diffusion for linear potentials. Several new and improved velocities exhibiting correct drift are identified, and we expand on an earlier conclusion that, generally, only half-step velocities can exhibit correct, time-step independent Maxwell-Boltzmann distributions. Specific practical and efficient algorithms are given in familiar forms, and these are used to numerically validate the analytically derived expectations. One especially simple algorithm is highlighted, and the ability of one of the new on-site velocities to produce statistically correct averages for a particular damping value is specified.
description: 25 pages, 21 figures
Taking time: A mixed methods study of Parkinson's disease caregiver participation in activities in relation to their wellbeing.
Creators: name: Prado, Lia
name: Hadley, Rebecca
name: Rose, Dawn
Publisher: name: Zenodo
Year: 2021
Subjects: Parkinson's disease
care-givers
dance
activities
quality of life
wellbeing.

description: BackgroundWhilst studies suggest psychosocial interventions (e.g., dance classes) can improve wellbeing for people with Parkinson's disease (pwPD), few consider the potential benefits to their caregivers. AimsThis mixed methods study explored reasons for caregiver participation and abstention in various culturally enriching group activities (e.g., dance, art classes and therapy) and investigated the nature of participation in relation to the wellbeing of the caregivers. MethodQualitative: One focus group (two pwPD, two caregivers) and eight semi-structured interviews (caregivers) were analysed using Ground Theory to explore motivations for and against participation. Quantitative: 75 caregivers completed an online survey documenting the activities they, and the person they care for participated in, alongside a validated questionnaire (Jenkinson et al., 2012) to establish caregiver wellbeing. ResultsReasons for participation included socialising in an empathetic safe space, and engaging in physical activity that provided respite distraction (e.g., dancing with others to music). Reasons for abstention included preserving time for oneself and increasing the independence of the pwPD. Caregivers jointly participated in 62% of activities. Caregivers' wellbeing was gendered; female scores were significantly lower than male caregivers. Linear regression revealed non-participation in daily activities and higher stress levels were associated for female caregivers. ConclusionsParticipation in culturally enriching activities is beneficial for caregivers. By jointly participating in two thirds of activities, whilst reserving the other third as 'time for oneself' caregivers can realise a healthy balance in terms of their own wellbeing. This aim should be especially encouraged for female caregivers (Prado, Hadley, & Rose, 2020).
description: + ID der Publikation: hslu_83880 + Art des Beitrages: Poster-Präsentation + Sprache: Englisch + Letzte Aktualisierung: 2021-07-13 14:40:34
Sodium production in asymptotic giant branch stars
Creators: name: Mowlavi, Nami
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: [condensed] A new scenario is presented for the production of Na23 in asymptotic giant branch (AGB) stars. The scenario takes advantage of the periodic third dredge-up episodes characterizing those stars, which mix primary C12 from their intershell layers to their surface. Two successive interpulse/pulse/dredge-up sequences are then required to produce Na23. During the first sequence carbon and oxygen are converted into N14 by the hydrogen burning shell, and subsequently transformed into Ne22 by the helium burning shell. During the second sequence, Ne22 is converted into Na23 by the hydrogen burning shell, which is brought to the surface by the subsequent dredge-up episode. The Na23 produced by this scenario is thus primary. The efficiency of this scenario is analyzed through standard evolutionary AGB model predictions combined with synthetic calculations for the surface chemical evolution. It is shown that primary Na23 can efficiently be produced as soon as the surface C+N+O abundance enhancement reaches a certain level depending on the stellar metallicity. The required surface C+N+O abundance enhancement amounts to about 0.4 dex in solar metallicity stars, and to about 0.8 dex at a metallicity five times less than solar. ...
description: 18pages, also available at http://obswww.unige.ch/~mowlavi
Heavy Sterile Neutrinos and Neutrinoless Double Beta Decay
Creators: name: Bamert, P.
name: Burgess, C. P.
name: Mohapatra, R. N.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of producing neutrinoless double beta decay without having an electron neutrino with a mass in the vicinity of 1 eV. We do so by having a much lighter electron neutrino mix with a much heavier (m > 1 GeV) sterile neutrino. We study the constraints on the masses and mixings of such heavy sterile neutrinos from existing laboratory, astrophysical and cosmological information, and discuss the properties it would require in order to produce a detectable signal in current searches for neutrinoless double beta decay.
description: (We have revised somewhat our discussion of nucleosynthesis and laboratory bounds, and have modified figure 3 accordingly. Our conclusions remain unchanged.) plain TeX, 17 pages plus 4 figures attached, McGill-94/37, NEIP-94-007, UMD-PP-95-11
First detection of bromine and antimony in hot stars
Creators: name: Werner, K.
name: Rauch, T.
name: Knoerzer, M.
name: Kruk, J. W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Bromine (atomic number Z=35) and antimony (Z=51) are extremely difficult to detect in stars. In very few instances, weak and mostly uncertain identifications of Br I, Br II, and Sb II in relatively cool, chemically peculiar stars were successful. Adopted solar abundance values rely on meteoritic determinations. Here, we announce the first identification of these species in far-ultraviolet spectra of hot stars (with effective temperatures of 49,500-70,000 K), namely in helium-rich (spectral type DO) white dwarfs. We identify the Br VI resonance line at 945.96 A. A previous claim of Br detection based on this line is incorrect because its wavelength position is inaccurate by about 7 A in atomic databases. Taking advantage of precise laboratory measurements, we identify this line as well as two other, subordinate Br VI lines. Antimony is detected by the Sb V resonance doublet at 1104.23/1225.98 A, as well as two subordinate Sb VI lines. A model-atmosphere analysis reveals strongly oversolar Br and Sb abundances that are caused by radiative-levitation dominated atomic diffusion.
description: Accepted for publication in A&A
Additional file 3: of Characterization and subcellular localization of histone deacetylases and their roles in response to abiotic stresses in soybean
Creators: name: Yang, Chao
name: Shen, Wenjin
name: Chen, Hongfeng
name: Chu, Liutian
name: Xu, Yingchao
name: Zhou, Xiaochen
name: Liu, Chuanliang
name: Chen, Chunmiao
name: Zeng, Jiahui
name: Liu, Jin
name: Li, Qianfeng
name: Gao, Caiji
name: Charron, Jean-Benoit
name: Luo, Ming
Publisher: name: figshare
Year: 2018
Subjects: subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology
subject: FOS: Biological sciences

description: Table S2. Primers used in this study. (DOC 50 kb)
Additional file 1: of Patientsâ experience of recurrent/metastatic head and neck squamous cell carcinoma and their perspective on the EORTC QLQ-C30 and QLQ-H&N35 questionnaires: a qualitative study
Creators: name: Degboe, Arnold
name: Knight, Sarah
name: Halling, Katarina
name: Trigg, Andrew
name: Al-Zubeidi, Tamara
name: Aldhouse, Natalie
name: Kitchen, Helen
name: Wirth, Lori
name: Rogers, Simon
Publisher: name: figshare
Year: 2018
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Hematology

description: 1. Literature review and 2. Conceptual Saturation Analysis. Literature review search strategy and list of publications finally included in the development of the patient road map. Results of the conceptual saturation analysis from the 14 patient interviews. (DOCX 84 kb)
Pew Research Center: American Trends Panel Wave 69
Creators: name: Pew Research Center
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Satisfaction with how things are going in country (1); President Donald Trump approval (1); life for future generations of America (1); state of the country (4); 2020 presidential election (5); economic conditions in country (2); societal problems (2); 2020 Census (4); reasons for voting early (2); Biden/Trump president quality (2); confidence in Trump's ability to handle policy and presidency (6); confidence in former Vice President Joe Biden's ability to handle policy and presidency (6); worst yet to come for coronavirus (COVID-19) outbreak (1); mask wearing during pandemic (2); comfort with activities during coronavirus pandemic (7); spread of coronavirus (1); economic assistance from federal government during pandemic (6); employer coronavirus liability (1); concern about coronavirus (2); Trump/Biden personal characteristics (12); Trump tax return (1); Trump changed tone and nature of political debate (1); policing (11); government help for needy Americans (1); election security and voter registration (1); more power for United States president (1); social media (13); major technology companies (2); sermons condemning police violence against Black people (1).
An Effective Chiral Meson Lagrangian at $O(P^6)$ from the NJL Model
Creators: name: Bel'kov, A. A.
name: Lanyov, A. V.
name: Schaale, A.
name: Scherer, S.
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we present a strong chiral meson Lagrangian up to and including $O(p^6)$ in the momentum expansion. It is derived from the Nambu--Jona-Lasinio (NJL) model using the heat-kernel method. Identities related to the properties of covariant derivatives of the chiral matrix $U$ as well as field transformations have been used to obtain a minimal set of linearly independent terms.
description: 20 pages
Separation Of Edge Effects In Highly Non-Dipole Radiation Spectra
Creators: name: Bondarenco, M. V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Edge effects in spectra of non-dipole radiation from ultra-relativistic electrons passing through various finite targets are analyzed from a unified point of view. Examples include radiation in a finite magnet, bremsstrahlung at double scattering, and bremsstrahlung in an amorphous plate. A generalization of the encountered spectral decomposition property is proposed. The relevance of phenomena of jet-interjet radiation interference and electron time delay in the target is emphasized. Features produced by them in the radiation spectra are discussed.
description: 14 pages, 6 figures
Uncertainties from Long Range Effects in $B \to K^* γ
Creators: name: Golowich, Eugene
name: Pakvasa, Sandip
Publisher: name: arXiv
Year: 1994
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reconsider the `long-range' component of the radiative transition $B \to K^* γ$. A careful analysis of the vector dominance amplitude $B \to V_1 V_2 \to V_1 γ$ is carried out, with emphasis on the role of gauge invariance. The procedure for incorporating phenomenological $B\to V_1 V_2$ data is identified and polarization data, only recently available, is employed to estimate the magnitude of the vector dominance effect. We summarize uncertainties in the $B\to K^*γ$ radiative transition produced by long-range effects and provide sugggestions for further experimental work.
description: Standard Latex file, 20 pgs (figures not included), UMHEP-411, UH-511-800-94
Simulation of local contact conditions in the secondary shear zone in dry and wet metal cutting
Creators: name: Denkena, B.
name: Liu, H.C.
name: Pape, F.
name: Bergmann, B.
name: Poll, G.
name: Schenzel, J.
name: Ellersiek, L.
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2023
Subjects: subject: chip-tool contact
subject: cutting fluids
subject: Metal cutting
subject: real contact area
subject: surface roughness
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: Cutting fluids significantly influence the contact conditions in metal cutting, e.g. stresses or contact areas. Due to the limited accessibility of the chip-tool contact, the identification of contact conditions is challenging. In this paper, a simulation model is created and used to identify the real contact area in dry and wet cutting. Experimentally identified normal stresses and chip-tool roughness serve as input parameters. The results show higher normal stresses in wet cutting, which results in a higher real contact area between rake face and chip.
Reliable Object Tracking by Multimodal Hybrid Feature Extraction and Transformer-Based Fusion
Creators: name: Sun, Hongze
name: Liu, Rui
name: Cai, Wuque
name: Wang, Jun
name: Wang, Yue
name: Tang, Huajin
name: Cui, Yan
name: Yao, Dezhong
name: Guo, Daqing
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Visual object tracking, which is primarily based on visible light image sequences, encounters numerous challenges in complicated scenarios, such as low light conditions, high dynamic ranges, and background clutter. To address these challenges, incorporating the advantages of multiple visual modalities is a promising solution for achieving reliable object tracking. However, the existing approaches usually integrate multimodal inputs through adaptive local feature interactions, which cannot leverage the full potential of visual cues, thus resulting in insufficient feature modeling. In this study, we propose a novel multimodal hybrid tracker (MMHT) that utilizes frame-event-based data for reliable single object tracking. The MMHT model employs a hybrid backbone consisting of an artificial neural network (ANN) and a spiking neural network (SNN) to extract dominant features from different visual modalities and then uses a unified encoder to align the features across different domains. Moreover, we propose an enhanced transformer-based module to fuse multimodal features using attention mechanisms. With these methods, the MMHT model can effectively construct a multiscale and multidimensional visual feature space and achieve discriminative feature modeling. Extensive experiments demonstrate that the MMHT model exhibits competitive performance in comparison with that of other state-of-the-art methods. Overall, our results highlight the effectiveness of the MMHT model in terms of addressing the challenges faced in visual object tracking tasks.
description: 16 pages, 7 figures, 9 tabes; This work has been submitted for possible publication
Resolved Spectroscopy of the Narrow-Line Region in NGC 1068. I. The Nature of the Continuum Emission
Creators: name: Crenshaw, D. M.
name: Kraemer, S. B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first long-slit spectra of the Seyfert 2 galaxy NGC 1068 obtained by the Space Telescope Imaging Spectrograph (STIS); the spectra cover the wavelength range 1150 - 10,270 Angstroms at a spatial resolution of 0.05 - 0.1 arcsec and a spectral resolving power of 1000. In this first paper, we concentrate on the far-UV to near-IR continuum emission from the continuum ``hot spot'' and surrounding regions extending out to +/- 6 arcsec (+/-432 pc) at a position angle of 202 degrees In addition to the broad emission lines detected by spectropolarimetry, the hot spot shows the ``little blue bump'' in the 2000 - 4000 Ang. range, which is due to Fe II and Balmer continuum emission. The continuum shape of the hot spot is indistinguishable from that of NGC 4151 and other Seyfert 1 galaxies. Thus, the hot spot is reflected emission from the hidden nucleus, due to electron scattering (as opposed to wavelength-dependent dust scattering). The hot spot is ~0.3 arcsec in extent and accounts for 20% of the scattered light in the inner 500 pc. We are able to deconvolve the extended continuum emission in this region into two components: electron-scattered light from the hidden nucleus (which dominates in the UV) and stellar light (which dominates in the optical and near-IR). The scattered light is heavily concentrated towards the hot spot, is stronger in the northeast, and is enhanced in regions of strong narrow-line emission. The stellar component is more extended, concentrated southwest of the hot spot, dominated by an old (> 2 x 10 Gyr) stellar population, and includes a nuclear stellar cluster which is ~200 pc in extent.
description: 32 pages, Latex, includes 11 figures (postscript), to appear in the Astrophysical Journal
MACHINE TOOLS BROUGHT TO THE TERRITORY OF BUKHARA FROM FOREIGN COUNTRIES FOR THE DEVELOPMENT OF PRODUCTION AND TRADE
Creators: name: Haydarov, Saifiddin
Publisher: name: Zenodo
Year: 2024

description: In order to provide farmers and herdsmen with machines and equipment, the government of Bukhara purchased foreign equipment through German companies. 167 American machines bought from abroad arrived in Bukhara during the revolution (1920-1924) for the first time. 22 straw cutting machines and several machines - plows are lying on the road" - reports "Bukhara Akhbori" newspaper (1923).
Resolved Spectroscopy of the Narrow-Line Region in NGC 1068. II. Physical Conditions Near the NGC 1068 ``Hot-Spot''
Creators: name: Kraemer, S. B.
name: Crenshaw, D. M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The physical conditions near the optical continuum peak (``hot spot'') in the inner narrow line region (NLR) of the Seyfert 2 galaxy, NGC 1068. Spectra were taken with HST/STIS through the 0.1X52 arcsec slit, covering the full STIS 1200 to 10000 Angstrom waveband, and are from a region that includes the hot spot, extending 0.2, or ~ 14 pc (for H= 75 km/sec/Mpc). Perhaps the most striking feature of these spectra is the presence of strong coronal emission lines, including [S XII] 7611 which has hitherto only been identified in spectra of the solar corona. There is an apparent correlation between ionization energy and velocity of the emission lines with respect to the systemic velocity of the host galaxy, with the coronal lines blueshifted, most other high excitation lines near systemic, and some of the low ionization lines redshifted. From the results of our modeling, we find that the emission-line gas consists of three principal components: 1) one in which most of the strong emission-lines, such as [O III] 5007, [Ne V] 3426, C IV 1550, arise, 2) a more tenuous, highly ionized component, which is the source of the coronal-line emission, and 3) a component, which is not co-planar with the other two, in which the low ionization and neutral lines, such as [N II] 6548 and [O I] 6300, are formed. The first two components are directly ionized by the EUV-Xray continuum emitted by the central source, while the low ionization gas is ionized by a combination of highly absorbed continuum radiation and a small fraction of unabsorbed continuum scattered by free electrons associated with the hot spot. The combination of covering factor and Thomson optical depth of the high ionization components is insufficient to scatter the observed fraction of continuum radiation into our line-of-sight.
description: 42 pages, Latex, includes 5 figures (postscript), to appear in the Astrophysical Journal
Additional file 9: of A map of gene expression in neutrophil-like cell lines
Creators: name: Rincón, Esther
name: Rocha-Gregg, Briana
name: Collins, Sean
Publisher: name: figshare
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology
subject: Plant Biology

description: Nutridoma affects gene expression during differentiation subtly, but consistently in HL-60 and PLB-985 cells. (a) PLB-985 cells were differentiated into a neutrophil-like state by culturing in media supplemented with 1.3% DMSO, 2% Nutridoma and 0.5% FBS. At the indicated days post-differentiation, cells were harvested and processed for RNA-seq analysis or stained with FLPEP. Shown are the expression level of FPR1 at the mRNA level (from our RNA-seq data) and at the surface of the cells (FLPEP staining). Values for undifferentiated cells and for cell differentiated with 1.3% DMSO and 9% FBS are shown for comparison. Values were normalized by the values for the sample differentiated with only DMSO. (b) Density-colored scatter plots of expression values (normalized FPKM on a log10 scale) for protein-coding genes for HL-60 (left) or PLB-985 cells (right) cells differentiated with DMSO + Nutridoma versus those differentiated with DMSO. These data represent the averages of two replicate experiments. (c) Density-colored scatter plots of log10 fold-changes between the two protocols (subtracting DMSO values from DMSO + Nutridoma) comparing each of our two replicates of the RNA-Seq experiments for HL-60 (left) or PLB-985 (right) cells. To avoid noise from lowly expressed genes, only protein-coding genes with a mean log10 normalized expression value of − 1 or higher were included. The Pearson’s (R) and Spearman’s correlation coefficients are shown. (PDF 417 kb)
Artificial neural network based modelling approach for municipal solid waste gasification in a fluidized bed reactor
Creators: name: Pandey, Daya Shankar
name: Das, Saptarshi
name: Pan, Indranil
name: Leahy, James J.
name: Kwapinski, Witold
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this paper, multi-layer feed forward neural networks are used to predict the lower heating value of gas (LHV), lower heating value of gasification products including tars and entrained char (LHVp) and syngas yield during gasification of municipal solid waste (MSW) during gasification in a fluidized bed reactor. These artificial neural networks (ANNs) with different architectures are trained using the Levenberg-Marquardt (LM) back-propagation algorithm and a cross validation is also performed to ensure that the results generalise to other unseen datasets. A rigorous study is carried out on optimally choosing the number of hidden layers, number of neurons in the hidden layer and activation function in a network using multiple Monte Carlo runs. Nine input and three output parameters are used to train and test various neural network architectures in both multiple output and single output prediction paradigms using the available experimental datasets. The model selection procedure is carried out to ascertain the best network architecture in terms of predictive accuracy. The simulation results show that the ANN based methodology is a viable alternative which can be used to predict the performance of a fluidized bed gasifier.
description: 34 pages, 11 figures
Higher Gauge Theory and Integrability
Creators: name: Chen, Hank
name: Liniado, Joaquin
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 17B80 (Primary) 81T30 (Secondary)

description: In recent years, significant progress has been made in the study of integrable systems from a gauge theoretic perspective. This development originated with the introduction of $4$d Chern-Simons theory with defects, which provided a systematic framework for constructing two-dimensional integrable systems. In this article, we propose a novel approach to studying higher-dimensional integrable models employing techniques from higher category theory. Starting with higher Chern-Simons theory on the $4$-manifold $\mathbb{R}\times Y$, we complexify and compactify the real line to $\mathbb{C}P^1$ and introduce the disorder defect $ω=z^{-1}\mathrm{d} z $. This procedure defines a holomorphic five-dimensional variant of higher Chern-Simons theory, which, when endowed with suitable boundary conditions, allows for the localisation to a three-dimensional theory on $Y$. The equations of motion of the resulting model are equivalent to the flatness of a $2$-connection $(L,H)$, that we then use to construct the corresponding higher holonomies. We prove that these are invariants of homotopies relative boundary, which enables the construction of conserved quantities. The latter are labelled by both the categorical characters of a Lie crossed-module and the infinite number of homotopy classes of surfaces relative boundary in $Y$. Moreover, we also demonstrate that the $3$d theory has left and right acting symmetries whose current algebra is given by an infinite dimensional centrally extended affine Lie 2-algebra. Both of these conditions are direct higher homotopy analogues of the properties satisfied by the 2d Wess-Zumino-Witten CFT, which we therefore interpret as facets of integrable structures.
First Results of a Study of TeV Emission from GRBs in Milagrito
Creators: name: McEnery, J. E.
name: Atkins, R.
name: Benbow, W.
name: Berley, D.
name: Chen, M. L.
name: Coyne, D. G.
name: Dingus, B. L.
name: Dorfan, D. E.
name: Ellsworth, R. W.
name: Evans, D.
name: Falcone, A.
name: Fleysher, L.
name: Fleysher, R.
name: Gisler, G.
name: Goodman, J. A.
name: Haines, T. J.
name: Hoffman, C. M.
name: Hugenberger, S.
name: Kelley, L. A.
name: Leonor, I.
name: McConnell, M.
name: McCullough, J. F.
name: Miller, R. S.
name: Mincer, A. I.
name: Morales, M. F.
name: Nemethy, P.
name: Ryan, J. M.
name: Shen, B.
name: Shoup, A.
name: Sinnis, C.
name: Smith, A. J.
name: Sullivan, G. W.
name: Tumer, T.
name: Wang, K.
name: Wascko, M. O.
name: Westerhoff, S.
name: Williams, D. A.
name: Yang, T.
name: Yodh, G. B.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Milagrito, a detector sensitive to gamma-rays at TeV energies, monitored the northern sky during the period February 1997 through May 1998. With a large field of view and high duty cycle, this instrument was used to perform a search for TeV counterparts to gamma-ray bursts. Within the Milagrito field of view 54 gamma-ray bursts at keV energies were observed by the Burst And Transient Satellite Experiment (BATSE) aboard the Compton Gamma-Ray Observatory. This paper describes the results of a preliminary analysis to search for TeV emission correlated with BATSE detected bursts. Milagrito detected an excess of events coincident both spatially and temporally with GRB 970417a, with chance probability $2.8 \times 10^{-5}$ within the BATSE error radius. No other significant correlations were detected. Since 54 bursts were examined the chance probability of observing an excess with this significance in any of these bursts is $1.5 \times 10^{-3}$. The statistical aspects and physical implications of this result are discussed.
description: 6 pages, 5 figures, to appear in "GeV-TeV Astrophysics: Toward a Major Atmospheric Cherenkov Telescope VI," Snowbird, Utah (August, 1999)
Topological data analysis and diagnostics of compressible MHD turbulence
Creators: name: Makarenko, Irina
name: Bushby, Paul
name: Fletcher, Andrew
name: Henderson, Robin
name: Makarenko, Nikolay
name: Shukurov, Anvar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The predictions of mean-field electrodynamics can now be probed using direct numerical simulations of random flows and magnetic fields. When modelling astrophysical MHD, it is important to verify that such simulations are in agreement with observations. One of the main challenges in this area is to identify robust \it{quantitative} measures to compare structures found in simulations with those inferred from astrophysical observations. A similar challenge is to compare quantitatively results from different simulations. Topological data analysis offers a range of techniques, including the Betti numbers and persistence diagrams, that can be used to facilitate such a comparison. After describing these tools, we first apply them to synthetic random fields and demonstrate that, when the data are standardized in a straightforward manner, some topological measures are insensitive to either large-scale trends or the resolution of the data. Focusing upon one particular astrophysical example, we apply topological data analysis to HI observations of the turbulent interstellar medium (ISM) in the Milky Way and to recent MHD simulations of the random, strongly compressible ISM. We stress that these topological techniques are generic and could be applied to any complex, multi-dimensional random field.
description: 22 pages, 15 figures