cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Patterns of symptom development in patients with motor neuron disease
Creators: name: Walhout, Renée
name: Verstraete, Esther
name: Heuvel, Martijn P. Van Den
name: Veldink, Jan H.
name: Berg, Leonard H. Van Den
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Objective: To investigate whether symptom development in motor neuron disease (MND) is a random or organized process. Methods: Six hundred patients with amyotrophic lateral sclerosis (ALS), upper motor neuron (UMN) or lower motor neuron (LMN) phenotypes were invited for a questionnaire concerning symptom development. A binomial test was used to examine distribution of symptoms from site of onset. Development of symptoms over time was evaluated by Kaplan-Meier analysis. Results: There were 470 respondents (ALS = 254; LMN = 100; UMN = 116). Subsequent symptoms were more often in the contralateral limb following unilateral limb onset (ALS: arms p = 1.05 × 10−8, legs p −15; LMN phenotype: arms p = 6.74 × 10−9, legs p = 6.26 × 10−6; UMN phenotype: legs p = 4.07 × 10−14). In patients with limb onset, symptoms occurred significantly faster in the contralateral limb, followed by the other limbs and lastly by the bulbar region. Patterns of non-contiguous symptom development were also reported: leg symptoms followed bulbar onset in 30%, and bulbar symptoms followed leg onset in 11% of ALS patients. Conclusions: Preferred spread of symptoms from one limb to the contralateral limb, and to adjacent sites appears to be a characteristic of MND phenotypes, suggesting that symptom spread is organized, possibly involving axonal connectivity. Non-contiguous symptom development, however, is not uncommon, and may involve other factors.
Local variations of the Stellar Velocity Ellipsoid-II: the effect of the bar in the inner regions of Auriga galaxies
Creators: name: Walo-Martín, Daniel
name: Pinna, Francesca
name: Grand, Robert J. J.
name: Pérez, Isabel
name: Falcón-Barroso, Jesús
name: Fragkoudi, Francesca
name: Martig, Marie
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Theoretical works have shown that off-plane motions of bars can heat stars in the vertical direction during buckling but is not clear how do they affect the rest of components of the Stellar Velocity Ellipsoid (SVE). We study the 2D spatial distribution of the vertical, $σ_{z}$, azimuthal, $σ_ϕ$ and radial, $σ_{r}$ velocity dispersions in the inner regions of Auriga galaxies, a set of high-resolution magneto-hydrodynamical cosmological zoom-in simulations, to unveil the influence of the bar on the stellar kinematics. $σ_{z}$ and $σ_ϕ$ maps exhibit non-axisymmetric features that closely match the bar light distribution with low $σ$ regions along the bar major axis and high values in the perpendicular direction. On the other hand, $σ_{r}$ velocity dispersion maps present more axisymmetric distributions. We show that isophotal profile differences best capture the impact of the bar on the three SVE components providing strong correlations with bar morphology proxies although there is no relation with individual $σ$. Time evolution analysis shows that these differences are a consequence of the bar formation and that they tightly coevolve with the strength of the bar. We discuss the presence of different behaviours of $σ_{z}$ and its connection with observations. This work helps us understand the intrinsic $σ$ distribution and motivates the use of isophotal profiles as a mean to quantify the effect of bars.
description: 13 pages, 6 Figures. Accepted for publications in MNRAS
Introducing conflict as the microfoundation of organizational ambidexterity
Creators: name: Martin, Alexander
name: Keller, Arne
name: Fortwengel, Johann
Publisher: name: Freie Universität Berlin
Year: 2017
Subjects: subject: conflict management
subject: conflicts
subject: exploitation and exploration
subject: microfoundation
subject: organizational ambidexterity
subject: tensions
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: This article contributes to our understanding of organizational ambidexterity by introducing conflict as its microfoundation. Existing research distinguishes between three approaches to how organizations can be ambidextrous, that is, engage in both exploitation and exploration. They may sequentially shift the strategic focus of the organization over time, they may establish structural arrangements enabling the simultaneous pursuit of being both exploitative and explorative, or they may provide a supportive organizational context for ambidextrous behavior. However, we know little about how exactly ambidexterity is accomplished and managed. We argue that ambidexterity is a dynamic and conflict-laden phenomenon, and we locate conflict at the level of individuals, units, and organizations. We develop the argument that conflicts in social interaction serve as the microfoundation to organizing ambidexterity, but that their function and type vary across the different approaches toward ambidexterity. The perspective developed in this article opens up promising research avenues to examine how organizations purposefully manage ambidexterity.
Revisiting Kepler Transiting Systems: Unvetting Planets and Constraining Relationships among Harmonics in Phase Curves
Creators: name: Niraula, Prajwal
name: Shporer, Avi
name: Wong, Ian
name: de Wit, Julien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Space-based photometric missions widely use statistical validation tools for vetting transiting planetary candidates, particularly when other traditional methods of planet confirmation are unviable. In this paper, we refute the planetary nature of three previously validated planets -- Kepler-854~b, Kepler-840~b, and Kepler-699~b -- and possibly a fourth, Kepler-747~b, using updated stellar parameters from Gaia and phase-curve analysis. In all four cases, the inferred physical radii rule out their planetary nature given the stellar radiation the companions receive. For Kepler-854~b, the mass derived from the host star's ellipsoidal variation, which had not been part of the original vetting procedure, similarly points to a non-planetary value. To contextualize our understanding of the phase curve for stellar mass companions in particular and extend our understanding of high-order harmonics, we examine Kepler eclipsing binaries with periods between 1.5 and 10 days. Using a sample of 20 systems, we report a strong power-law relation between the second cosine harmonic of the phase-curve signal and the higher cosine harmonics, which supports the hypothesis that those signals arise from the tidal interaction between the binary components. We find that the ratio between the second and third-harmonic amplitudes is $2.24 \pm 0.48$, in good agreement with the expected value of 2.4 from the classical formalism for the ellipsoidal distortion.
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00208
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes
subject: Corpus Burgundiae Medii Aevi

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00208, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
How do formative objective structured clinical examinations drive learning? Analysis of residents’ perceptions
Creators: name: Pugh, Debra
name: Desjardins, Isabelle
name: Eva, Kevin
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Introduction: Although several studies have explored the relationship between learning and written tests, little is understood about how performance-based examinations influence learning. The purpose of this study was to explore how a formative objective structured clinical examination (OSCE) drives learning. Methods: We administered surveys to residents (n = 35) at three time points to determine if and how an OSCE influenced their learning: before and immediately following the OSCE, and after the distribution of their results. Differences in quantitative responses between high- and low-performing residents and across time were compared using repeated-measures ANOVA. Thematic analysis was used to analyze narrative comments. Results: Participants’ goals for the OSCE related to performance, mastery and feedback. Almost all participants reported that they had learned something from the OSCE (94%) and most participants generated learning goals after the OSCE (71%). High performers appeared to recognize the importance of content-related knowledge for scoring well before and after the OSCE, whereas low performers may have under-estimated its importance until after the examination. Discussion: Participants viewed a formative OSCE as both a hurdle to overcome (assessment of learning) and an opportunity to learn (assessment for learning). Understanding how OSCEs influence study behavior can help guide the development of assessments that promote learning.
Formation and fate of low metallicity stars in IllustrisTNG50
Creators: name: Pakmor, Ruediger
name: Simpson, Christine M.
name: van de Voort, Freeke
name: Hernquist, Lars
name: van Son, Lieke
name: Chruślińska, Martyna
name: Bieri, Rebekka
name: de Mink, Selma E.
name: Springel, Volker
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Low metallicity stars give rise to unique spectacular transients and are of immense interest for understanding stellar evolution. Their importance has only grown further with the recent detections of mergers of stellar mass black holes that likely originate mainly from low metallicity progenitor systems. Moreover, the formation of low metallicity stars is intricately linked to galaxy evolution, in particular to early enrichment and to later accretion and mixing of lower metallicity gas. Because low metallicity stars are difficult to observe directly, cosmological simulations are crucial for understanding their formation. Here we quantify the rates and locations of low metallicity star formation using the high-resolution TNG50 magnetohydrodynamical cosmological simulation, and we examine where low metallicity stars end up at $z=0$. We find that $20\%$ of stars with $Z_*<0.1\,\mathrm{Z_\odot}$ form after $z=2$, and that such stars are still forming in galaxies of all masses at $z=0$ today. Moreover, most low-metallicity stars at $z=0$ reside in massive galaxies. We analyse the radial distribution of low metallicity star formation, and discuss the curious case of seven galaxies in TNG50 that form stars from primordial gas even at $z=0$.
description: 15 pages, 11 figures, accepted by MNRAS, comments welcome
New LZ and PW(Z) relations of RR Lyrae stars calibrated with Gaia EDR3 parallaxes
Creators: name: Garofalo, A.
name: Delgado, H. E.
name: Sarro, L. M.
name: Clementini, G.
name: Muraveva, T.
name: Marconi, M.
name: Ripepi, V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new luminosity-metallicity (LZ; MV-[Fe/H] and MG-[Fe/H]) relations and, for the first time, empirical, Gaia three-band (G,GBP,GRP) period-Wesenheit-metallicity (PWZ) relations of RR Lyrae stars (RRLs) derived using a hierarchical Bayesian approach and new accurate parallaxes published for these variables in the Gaia Early Data Release 3 (EDR3). In a previous study we obtained Bayesian hierarchically-derived LZ relations from a sample of about four hundred Milky Way field RRLs with G-band light curves and trigonometric parallaxes published in the Gaia Data Release 2 (DR2), using V mean magnitudes, metallicities, absorptions and pulsation periods available in the literature. We now extend that study in two directions. Firstly, we update our previous results using trigonometric parallaxes from Gaia EDR3 and incorporate the Bayesian analysis of a first empirical PWZ relation derived using those field RRLs with G, GBP and GRP time-series photometry available in Gaia DR2. Secondly, we use Bayesian inference to derive LZ relations and empirical PW Gaia three-band relations from 385 RRLs belonging to 15 Milky Way globular clusters (GC) with literature-compiled spectroscopic metallicities ranging from -0.36 to -2.39 dex and prior distances extending from 2.2 to 41.2 kpc. From the samples of RRLs analysed in this paper we infer a mean Gaia EDR3 zero-point offset of -0.028 mas with median values ranging from -0.033 (LZ and PWZ models for field stars) to -0.024 mas (LZ model in the V-band for GC RRLs).
description: 22 pages, 14 figures, accepted for publication in MNRAS
Enacting global competition in local supply chain environments: German “Chemieparks” and the micro-politics of employment relations in a CME
Creators: name: Helfen, Markus
name: Nicklich, Manuel
name: Fortwengel, Johann
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: supply chain restructuring
subject: micro-politics
subject: employment relations
subject: varieties of capitalism
subject: practice theory
subject: chemical industry
subject: production networks
subject: 300 Sozialwissenschaften::330 Wirtschaft::331 Arbeitsökonomie

description: Drawing upon the debate on institutional mediation of macro processes, we examine how multinational enterprises (MNEs) engage with global competition through restructuring their operations situated in local supply chain environments and how employment relations (ER) of coordinated market economies are reconfigured in the course of this restructuring process. Our empirical setting is the German chemical industry which is both an exemplar of coordinated labour-management-collaboration and highly exposed to global competition. Using a comparative case study design, we observe how MNEs re-structure two local production sites into ‘Chemieparks’. Our empirical data suggest that local agency diverges in the extent to which the social partnership type of ER is maintained or disrupted. Furthermore, we highlight the importance of micro-political practices for understanding the restructuring outcome as well as the local enactment and change of macro institutions within production networks as meso-level arenas for institutional mediation.
Some Aspects of Rotation and Magnetic Field Morphology in the Infrared Dark Cloud G34.43+00.24
Creators: name: Vahdanian, Hamed
name: Nejad-Asghar, Mohsen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The infrared dark clouds (IRDCs) are molecular clouds with relatively greater values in their magnetic field strengths. For example, the IRDC G34.43+00.24 (G34) has magnetic field strength of the order of a few hundred micro-Gauss. In this study, we investigate if the dynamic motions of charged particles in an IRDC such as G34 can produce this magnetic field strength inside it. The observations show that the line-of-sight velocity of G34 has global gradient. We assume that the measured global velocity gradient can correspond to the cloud rotation. We attribute a large-scale current density to this rotating cloud by considering a constant value for the incompleteness of charge neutrality and the velocity differences between the positive and negative particles with very low ionization fractions. We use the numerical package FISHPACK to obtain the magnetic field strength and its morphology on the plane-of-sky within G34. The results show that the magnetic field strengths are of the order of several hundred micro-Gauss, and its morphology in the plane-of-sky is somewhat consistent with the observational results. We also obtain the relationship between magnetic field strength and density in G34. The results show that with increasing density, the magnetic field strength increases approximately as a power-law function. The amount of power is approximately equal to 0.45, which is suitable for molecular clouds with strong magnetic fields. Therefore, we can conclude that the dynamical motion of IRDCs, and especially their rotations, can amplify the magnetic field strengths within them.
description: 23 pages, 8 figures, accepted for publication in MNRAS
Counterfeit self: A confirmatory factor analysis among Indonesians
Creators: name: Juneman Abraham
Publisher: name: figshare
Year: 2017
Subjects: subject: 220311 Philosophical Psychology (incl. Moral Psychology and Philosophy of Action)
subject: FOS: Philosophy, ethics and religion
subject: Personality, Social and Criminal Psychology
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified
subject: FOS: Psychology

description: It is questionable whether counterfeiting in many areas of life contributes to unethical behavior to a wider extent. If the notion is supported by data, then the moral damage in a society could be prevented by reducing the counterfeit self and behavior to a bare minimum. This study aimed at empirically testing the measurement model of counterfeit self of Wood et al. (2008) among Indonesians as well as theoretically reviewing counterfeit self roles in unethical behavior. The participants of this study were 1,655 high school students (764 males, 891 females; Mage = 15.76 years old; SDage = 1.08 years) recruited through a purposive sampling technique in North Sumatera and West Kalimantan, Indonesia. The data analysis technique used was Confirmatory Factor Analysis. The results showed that the counterfeit self model--comprised of counterfeit self dimensions, namely Self-alienation (ALIEN), Inauthentic Living (LIVE), and Accepting External Influence (EXT)--was supported by the empirical data. However, the dimension of EXT could not be represented by its indicators. The study contributed to the psychological body of knowledge that the EXT dimension might need to be excluded from the measurement of counterfeit self on teenagers, especially in Indonesia and other Eastern countries.
Orbital Conventions for Joint Fits with Radial Velocity, Astrometry, and Protoplanetary Disks
Creators: name: Czekala, Ian
Publisher: name: figshare
Year: 2017
Subjects: subject: Astrophysics
subject: Planetary Science
subject: Instrumentation, Techniques, and Astronomical Observations
subject: Solar System, Solar Physics, Planets and Exoplanets
subject: Stars, Variable Stars
subject: Stellar Astronomy
subject: 20110 Stellar Astronomy and Planetary Systems
subject: FOS: Physical sciences

description: We expand notes on Keplerian orbits of binary stars and derive equations of motion for radial velocity and astrometric observations. We primarily follow the right-handed formalism of Murray and Correia, we modify some derivation steps to carefully respect common conventions in the visual binary field, namely that the ascending node is where the secondary crosses the plane of the sky moving away from the observer. We also derive equations for the relative inclination of the stellar orbit and an orbiting circumbinary disk.
CHANG-ES XXV: HI Imaging of Nearby Edge-on Galaxies -- Data Release 4
Creators: name: Zheng, Yun
name: Wang, Jing
name: Irwin, Judith
name: English, Jayanne
name: Ma, Qingchuan
name: Wang, Ran
name: Wang, Ke
name: Wang, Q. Daniel
name: Krause, Marita
name: Randriamampandry, Toky H.
name: Li, Jiangtao
name: Beck, Rainer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the HI distribution of galaxies from the Continuum Halos in Nearby Galaxies - an EVLA Survey (CHANG-ES). Though the observational mode was not optimized for detecting HI, we successfully produce HI cubes for 19 galaxies. The moment-0 maps from this work are available on CHANG-ES data release website, i.e., https://www.queensu.ca/changes. Our sample is dominated by star-forming, HI-rich galaxies at distances from 6.27 to 34.1 Mpc. HI interferometric images on two of these galaxies (NGC 5792 and UGC 10288) are presented here for the first time, while 12 of our remaining sample galaxies now have better HI spatial resolutions and/or sensitivities of intensity maps than those in existing publications. We characterize the average scale heights of the HI distributions for a subset of most inclined galaxies (inclination > 80 deg), and compare them to the radio continuum intensity scale heights, which have been derived in a similar way. The two types of scale heights are well correlated, with similar dependence on disk radial extension and star formation rate surface density but different dependence on mass surface density. This result indicates that the vertical distribution of the two components may be governed by similar fundamental physics but with subtle differences.
description: 27 pages, 10 figures, accepted for publication in MNRAS
Discovery of Quasi Periodic Oscillations in the persistent X-ray emission of Accreting Binary X-ray Pulsar LMC X-4
Creators: name: Rikame, Ketan
name: Paul, Biswajit
name: Pradhan, Pragati
name: Paul, KT
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the discovery of quasi-periodic oscillations (QPOs) in the High Mass X-ray Binary (HMXB) pulsar LMC X-4 in its non-flaring (persistent) state using observations with XMM-Newton. In addition to the 74 mHz coherent pulsations, the persistent emission light curve shows a QPO feature in the frequency range of 20-30 mHz. Quasi-periodic flares have been previously observed from LMC X-4 in observations made with Rossi X-ray Timing Explorer (RXTE). However, this is the first time QPOs have been observed in the persistent emission observations of LMC X-4. QPOs in X-ray binaries are generally thought to be related to the rotation of the inhomogeneous matter distribution in the inner accretion disk. In High Mass X-ray Binaries (HMXBs) such as LMC X-4 where the compact object is a neutron star with a high magnetic field, the radius of the inner accretion disk is determined by the mass accretion rate and the magnetic moment of the neutron star. In such systems, the QPO feature, along with the pulse period and X-ray luminosity measurement helps us to constrain the magnetic field strength of the neutron star. We use considerations of magnetospheric accretion to have an approximate value of the magnetic field strength of the neutron star in LMC X-4.
description: 6 pages, 4 figures, Accepted for publication in MNRAS
title: Rapport de voyage, De Grasse (1924) : Ligne des Antilles, 1952, voyage n°6
Creators: name: Choplin, Guy
name: De Saint-Sauveur, Charles
name: Prigent, François
name: Tournade, Edouard
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: subject: Compagnie Générale Transatlantique
subject: Transports maritimes - Histoire
subject: Marine marchande
subject: Journaux de bord

description: Chapitrage : Rapports d'inspecteurs - Rapport général / du capitaine - Rapport du commissaire - Rapport du second - Rapport de l'officier de sécurité - Rapport de l'officier de navigation - Rapport du médecin - Rapport contentieux
description: Source: French Lines & Compagnies, 1997 004 4980-15
description: Coverage: 1952-07-12/1952-08-16
Absorption Line Search Through Three Local Group Dwarf Galaxy Halos
Creators: name: Qu, Zhijie
name: Bregman, Joel N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Dwarf galaxies are missing nearly all of their baryons and metals from the stellar disk, presumed to be in a bound halo or expelled beyond the virial radius. The virial temperature for galaxies with $M_{\rm h} \sim 10^9 - 10^{10}$ $M_{\odot}$ is similar to the collisional ionization equilibrium temperature for the C IV ion. We searched for UV absorption from C IV in six sightlines toward three dwarf galaxies in the anti-M31 direction and at the periphery of the Local Group ($D \approx$ 1.3 Mpc; Sextans A, Sextans B, and NGC 3109). The C IV doublet is detected in only one of six sightlines, toward Sextans A, with $\log N({\rm C IV})$ = $13.06 \pm 0.08$. This is consistent with our gaseous halo models, where the halo gas mass is determined by the cooling rate, feedback, and the star formation rate; the inclusion of photoionization is an essential ingredient. This model can also reproduce the higher detection rate of O VI absorption in other dwarf samples (beyond the Local Group), and with C IV only detectable within $\sim 0.5R_{\rm vir}$.
description: Accepted for publication by ApJ, in press
Gas phase metallicity determinations in nearby AGNs with SDSS-IV MaNGA: evidence of metal poor accretion
Creators: name: Nascimento, Janaína C. do
name: Dors, Oli L.
name: Storchi-Bergmann, Thaisa
name: Mallmann, Nícolas D.
name: Riffel, Rogério
name: Ilha, Gabriele S.
name: Riffel, Rogemar A.
name: Rembold, Sandro B.
name: Deconto-Machado, Alice
name: da Costa, Luiz N.
name: Armah, Mark
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We derive the metallicity (traced by the O/H abundance) of the Narrow Line Region ( NLR) of 108 Seyfert galaxies as well as radial metallicity gradients along their galaxy disks and of these of a matched control sample of no active galaxies. In view of that, observational data from the SDSS-IV MaNGA survey and strong emission-line calibrations taken from the literature were considered. The metallicity obtained for the NLRs %each Active Galactic Nucleus (AGN) was compared to the value derived from the extrapolation of the radial oxygen abundance gradient, obtained from \ion{H}{ii} region estimates along the galaxy disk, to the central part of the host galaxies. We find that, for most of the objects ($\sim 80\,\%$), the NLR metallicity is lower than the extrapolated value, with the average difference ($$) between these estimates ranging from 0.16 to 0.30 dex. We suggest that $$ is due to the accretion of metal-poor gas to the AGN that feeds the nuclear supermassive black hole (SMBH), which is drawn from a reservoir molecular and/or neutral hydrogen around the SMBH. Additionally, we look for correlations between $D$ and the electron density ($N_{\rm e}$), [\ion{O}{iii}]$λ$5007 and H$α$ luminosities, extinction coefficient ($A_{V})$ of the NLRs, as well as the stellar mass ($M_{*}$) of the host galaxies. Evidences of an inverse correlation between the $D$ and the parameters $N_{\rm e}$, $M_{*}$ and $A_{\rm v}$ were found.
Exponentially accurate temporal decomposition for long-horizon linear-quadratic dynamic optimization
Creators: name: Anitescu, Mihai
name: Wanting Xu
Publisher: name: figshare
Year: 2017
Subjects: subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics

description: In this work, we investigate a temporal decomposition approach to long-horizon dynamic optimization problems. The problems are discrete-time, linear,
time-dependent and with \rev{box constraints} on the control
variables. We prove that an overlapping domains temporal
decomposition, while inexact, approaches the
solution of the long-horizon dynamic optimization problem
exponentially fast in the size of the overlap. The resulting
subproblems share no solution information and thus can be
computed independently in parallel. Our findings are
demonstrated with a small, synthetic production cost model with
real demand data.
Unsymmetrical liquid crystalline dimers containing biphenyl moiety: synthesis, characterisation, mesomorphic study and DFT studies
Creators: name: Rabari, Mahima
name: Parmar, Yuvrajsinh
name: Prajapati, A. K.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Chemical Sciences not elsewhere classified
Science Policy

description: In the current study, two new unsymmetrical liquid crystalline homologous series of dimers with a rigid biphenyl core were synthesised using an ether-linking group. Several spectroscopic methods, including FT-IR, 1H-NMR, 13C-NMR, elemental analysis and mass spectrometry, were used to describe the synthesized dimers. Differential scanning calorimetry (DSC) and polarised optical microscopy (POM) were used to assess their mesomorphic properties. The results showed that the number of methylene spacers significantly affected the thermal properties of the synthesized dimers. To ascertain photophysical behaviour, UV–Visible spectroscopy was employed. Nematic-type mesophase patterns with good mesophase range and thermal stability were seen in both series. Dimers with flexible spacers (n = 2, 4, 6) had the best liquid crystalline nature out of all the dimers. The relationships between structure and its mesogenic property, the effects of various flexible spacers, the mesophase ranges, and the photo-isomerization of liquid crystalline dimers were all investigated. DFT Studies were carried out to gain a better understanding of structural features.
Core overshoot constrained by the absence of a solar convective core and some solar-like stars
Creators: name: Zhang, Qian-Sheng
name: Christensen-Dalsgaard, Jørgen
name: Li, Yan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Convective-core overshoot mixing is a significant uncertainty in stellar evolution. Because numerical simulations and turbulent convection models predict exponentially decreasing radial rms turbulent velocity, a popular treatment of the overshoot mixing is to apply a diffusion process with exponentially decreasing diffusion coefficient. It is important to investigate the parameters of the diffusion coefficient because they determine the efficiency of the mixing in the overshoot region. In this paper, we have investigated the effects of the core overshoot mixing on the properties of the core in solar models and have constrained the parameters of the overshoot model by using helioseismic inferences and the observation of the solar 8B neutrino flux. For solar-mass stars, the core overshoot mixing helps to prolong the lifetime of the convective core developed at the ZAMS. If the strength of the mixing is sufficiently high, the convective core in a solar model could survive till the present solar age, leading to large deviations of the sound-speed and density profiles comparing with the helioseismic inferences. The 8B neutrino flux also favours a radiative solar core. Those provide a constraint on the parameters of the exponential diffusion model of the convective overshoot mixing. A limited asteroseismic investigation of 13 Kepler low-mass stars with 1.0 < M < 1.5 shows a mass-dependent range of the overshoot parameter. The overshoot mixing processes for different elements are analyzed in detail. It is found that the exponential diffusion overshoot model leads to different effective overshoot mixing lengths for elements with different nuclear equilibrium timescale.
description: 19 pages, 14 figures, accepted for publication in MNRAS
Metallicities of Outer Halo M31 Globular Clusters from Integrated Light Calcium-II Triplet Spectroscopy
Creators: name: Sakari, Charli
name: Wallerstein, George
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper presents [Fe/H] ratios for GCs in the outer halo of the Andromeda Galaxy, M31, based on moderate-resolution, integrated light (IL) spectroscopy of the calcium-II triplet (CaT) lines. The CaT strengths are measured by fitting Voigt profiles to the lines and integrating those profiles; integrations of defined bandpasses are also considered. The [Fe/H] ratios are determined using an empirical calibration with CaT line strength, as derived from another sample of M31 GCs that were previously studied at high-resolution. The [Fe/H] ratios for the new GCs reveal that the outer halo GCs are indeed generally more metal-poor than typical inner halo GCs, though there are several more metal-rich GCs that look to have been accreted from dwarf satellites. The metallicities of these GCs also place important constraints on the nature of the substructure in the outer halo and the dwarf satellites that created this substructure.
description: Accepted for publication in MNRAS
Zingiberene - Molecule of the Month March 2018 [Archived version]
Creators: name: Cotton, Simon
Publisher: name: figshare
Year: 2018
Subjects: subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: This is the Molecule of the Month entry for March 2018 about zingiberene. It is a pdf archive version of the HTML webpage.
Data Mining Application in Research Administration Using R within Serverless Architecture
Creators: name: Sarajlic, Semir
name: Bessozi, Sarah
name: Davis, Brock
name: Gregori Faroux
Publisher: name: figshare
Year: 2018
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 80605 Decision Support and Group Support Systems
subject: 80302 Computer System Architecture

description: We present a low-cost cloud-based solution using serverless architecture. More specifically, architecture was based on a Function as a Service (FaaS) in Azure that enables running R code in an ephemeral container. Azure function app is used to run the R code for data extraction, transformation, analysis and publishing to REST API endpoints for visualization by custom Web Portal and BI tools. One solution we developed for the Compliance and Safety division in which we analyze the current status of researcher’s CITI Training, such as Conflict of Interest. This information ensures the university is in compliance with the sponsor and regulation requirements. Second solution we developed for Proposals and Awards division in which we analyze our researchers’ proposal success rate by fiscal year and sponsor. This provides necessary metrics for guiding our efforts in improving proposal success rates across the university, and in the process, increase the research portfolio revenue.
Cervical spine disease in surgeons performing arthroscopy or laparoscopy
Creators: name: Norheim, Elizabeth P.
name: Black, Mary Helen
name: Eunis W. Ngor
name: Jiaxiao M. Shi
name: Safran, Marc R.
name: Navarro, Ronald A.
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Medicine
subject: Biotechnology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Minimal research exists regarding cervical spine disorders in surgeons who perform endoscopy. A confidential on-line survey regarding neck pain (NP), spine disease (SD), and radiculopathy/myelopathy (R/M) was sent to 722 surgeons from a managed, group-based health care system. 415 responded. 361 had endoscopy experience, of whom 24.4% had NP, 20.8% SD, and 3.9% R/M. Most respondents were less than 50 years of age (62.3%), and male (65.7%). Significant risk factors for NP included older age and female, whereas OB/Gyn specialty, increased age and job stress were for SD. After adjusting for age and gender, significant risk factors for NP and SD included greater surgeon experience. After also adjusting for job stress, significant risk factors for SD included increased surgeon experience and higher frequency of endoscopies. No association was found between use of digital OR. Endoscopy appears to place surgeons at higher risk of cervical disease. Level of Evidence: Level 3
The methanol emission in the $J_1-J_0$ A$^{-+}$ line series as a tracer of specific physical conditions in high-mass star-forming regions
Creators: name: Salii, Svetlana V.
name: Zinchenko, Igor I.
name: Liu, Sheng-Yuan
name: Sobolev, Andrej M.
name: Aberfelds, Artis
name: Su, Yu-Nung
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present results of the investigations of the properties of the methanol $J_1 - J_0$ A$^{-+}$ line series motivated by the recent serendipitous detection of the maser emission in the $14_1 - 14_0$ A$^{-+}$ line at 349~GHz in S255IR-SMA1 soon after the accretion burst. The study includes further observations of several lines of this series in S255IR with the SMA, a mini-survey of methanol lines in the 0.8 mm range toward a sample of bright 6.7~GHz methanol maser sources with the IRAM-30m telescope, and theoretical modeling. We found that the maser component of the $14_1 - 14_0$ A$^{-+}$ line in S255IR decayed by more than order of magnitude in comparison with that in 2016. No clear sign of maser emission is observed in other lines of this series in the SMA observations except the $7_1 - 7_0$ A$^{-+}$ line where an additional bright component is detected at the velocity of the maser emission observed earlier in the $14_1 - 14_0$ A$^{-+}$ line. Our LVG model constrains the ranges of the physical parameters that matches the observed emission intensities. No obvious maser emission in the $J_1 - J_0$ A$^{-+}$ lines was detected in the mini-survey of the 6.7~GHz methanol maser sources, though one component in NGC7538 may represent a weak maser. In general, the maser effect in the $J_1 - J_0$ A$^{-+}$ lines may serve as a tracer of rather hot environments and in particular luminosity flaring events during high mass star formation.
description: 16 pages, 12 figures
Novel benzoxazole-based liquid crystals with negative dielectric anisotropy and moderate optical anisotropy
Creators: name: Zhang, Tong
name: Liang, Fanghua
name: Li, Xurui
name: Lin, Hongfei
name: Chen, Ran
name: Chen, Pei
name: Chen, Xinbing
name: An, Zhongwei
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Physical Sciences not elsewhere classified
Neuroscience
Biotechnology
Chemical Sciences not elsewhere classified

description: A series of new liquid crystal compounds with negative dielectric anisotropy was synthesised by regulating the orientation of the substituents on the benzoxazole ring, namely, 5–4-(2-(4-(alkoxy)phenyl)-2,3-difluorophenyl)benzo[d]oxazole derivatives (nPP(2,3)FO). These compounds mainly display enantiotropic nematic mesophases in the ranges of 8.62–16.09°C (heating process) and 23.98–30.32°C (cooling process), moderate birefringence (Δn) ranging from 0.25–0.32 (DFT theoretical calculation) and 0.22–0.28 (experimental measurement), as well as negative dielectric anisotropy (Δɛ) ranging from −2.77 to −2.94. These characterises are ascribed to the larger perpendicular dipole moments and orientation angles of benzoxazole. This work provides new ideas for the rational design of negative dielectric anisotropy liquid crystals.
On the energy dependence of the muon transfer rate from hydrogen to oxygen
Creators: name: Romanov, S. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The results of calculations of the muon transfer rate from the 1S state of muonic hydrogen to the nucleus of a free oxygen atom are presented in the interval of collision energies from 10^(-4) to 10 eV. The calculations were performed within a version of the perturbed stationary states method proposed earlier. The electron screening in the entrance channel of the transfer reaction was taken into account. A p-wave resonance in the transfer rate is predicted at collision energies of about 0.1 eV. This result is of interest in the context of the planned laser experiment on precise measurements of the hyperfine splitting energy of the 1S state of muonic hydrogen.
description: 30 pages, 5 figures, 8 tables, 2 appendices
title: ADCO, Comptes du Petit-Cîteaux (1477-1491) (11 H 1179), f. 00337
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: comptes
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Comptes du Petit-Cîteaux (1477-1491), Archives départementales de la Côte-d'Or, (11 H 1179), f. 00337, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Legitimizing the apprenticeship practice in a distant environment: Institutional entrepreneurship through inter-organizational networks
Creators: name: Fortwengel, Johann
name: Jackson, Gregory
Publisher: name: Freie Universität Berlin
Year: 2016
Subjects: subject: institutional entrepreneurship
subject: MNEs
subject: agency
subject: practice transfer
subject: institutional distance
subject: apprenticeships
subject: inter-organizational networks
subject: networked institutional entrepreneurship
subject: 300 Sozialwissenschaften::330 Wirtschaft::331 Arbeitsökonomie

description: This paper asks how Multinational Enterprises (MNEs) engage in institutional entrepreneurship to successfully transfer the organizational practice of apprenticeship-based training from Continental Europe to the distant host environment of the United States. In our case study, we highlight the important role of inter-organizational networks to coordinate engagement with the cognitive, normative, and regulative pillars of host country institutions. This networked form of institutional entrepreneurship involves the formation of inter-organizational networks for the purpose of bringing about institutional change collaboratively. In the process of transferring apprenticeship, a particular vision of workforce training was created, support gathered, and institutional change was sustained locally around the issue of training. We argue further that networked institutional entrepreneurship is a useful strategic tool to overcome the particular kind of institutional distance between the institutional settings of more coordinated market economies (CMEs) and more liberal market-oriented economies (LMEs). We contribute to existing knowledge by showing how practice transfer is shaped by particular kinds of institutional distance, and highlighting the role of inter-organizational networks as a way of governing collective agency associated with institutional entrepreneurship and the emergence of new local proto-institutions.
Business exit and strategic change: Sticking to the knitting or striking a new path?
Creators: name: Decker, Carolin
name: Mellewigt, Thomas
Publisher: name: Freie Universität Berlin
Year: 2012
Subjects: subject: business exit
subject: strategic change
subject: divestiture
subject: corporate restructuring
subject: 300 Sozialwissenschaften::330 Wirtschaft::331 Arbeitsökonomie

description: The purpose of this study is to examine the potential of business exit for initiating strategic change in divesting parent firms. In contrast to prior literature that mainly investigates the impact of different antecedents on the likelihood of business exit in general, this study additionally tests the influence of these antecedents on the choice between two exit types with a cross‐industry sample of divesting firms listed in the German CDAX over the time period 1999–2004. A divestiture involving strategic change is a strategic business exit; otherwise it is denoted as status quo preserving. The findings reveal that a relatively highly dissipated focus does not automatically enhance the likelihood of business exit in general and status‐quo‐preserving business exit in particular. CEO turnover and pressures exerted by institutional investors predict neither strategic nor status‐quo‐preserving business exit. Low firm performance does not nurture the likelihood of business exit per se but especially promotes status‐quo‐preserving business exit.
Novel fluorescence liquid crystals based on thiophene-vinylnitrile Schiff-base derivatives
Creators: name: Yang, Zengwei
name: Huang, Xinyao
name: Cheng, Jianchao
name: Guo, Hongyu
name: Yang, Fafu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: This paper reported the first example of thiophene-containing AIE fluorescence liquid crystals. Thiophene-vinylnitrile Schiff-base derivatives 5 with one alkyl chain and 6 with two alkyl chains were prepared conveniently in yields of 86% and 88%, respectively. They exhibited the smectic phases from 91.5 to 130.6℃ for sample 5 and 71.3 to 120.2℃ for sample 6. They displayed excellent fluorescence in aggregated states of solid film and mesophase. The absolute fluorescence quantum yields in solid film were as high as 0.64 for samples 5 and 0.76 for sample 6, respectively. These results suggested thiophene-vinylnitrile Schiff-base derivatives 5 and 6 were excellent fluorescence liquid crystals and the multiple alkyl chains on thiophene-vinylnitrile Schiff-base derivatives were favourable for the low temperature of mesophase and high fluorescence.