cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Curved spacetimes from quantum mechanics
Creators: name: Szabados, László B.
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The ultimate extension of Penrose's Spin Geometry Theorem is given. It is shown how the \emph{local} geometry of any \emph{curved} Lorentzian 4-manifold (with $C^2$ metric) can be derived in the classical limit using only the observables in the algebraic formulation of abstract Poincaré-invariant elementary quantum mechanical systems. In particular, for any point $q$ of the classical spacetime manifold and curvature tensor there, there exists a composite system built from finitely many Poincaré-invariant elementary quantum mechanical systems and a sequence of its states, defining the classical limit, such that, in this limit, the value of the distance observables in these states tends with asymptotically vanishing uncertainty to lengths of spacelike geodesic segments in a convex normal neighbourhood $U$ of $q$ that determine the components of the curvature tensor at $q$. Since the curvature at $q$ determines the metric on $U$ up to third order corrections, the metric structure of curved $C^2$ Lorentzian 4-manifolds is recovered from (or, alternatively, can be \emph{defined} by the observables of) abstract Poincaré-invariant quantum mechanical systems.
description: 22 pages
ความฉลาดทางสังคม ความพึงพอใจในการทำงาน และพฤติกรรมการเป็นสมาชิกที่ดีขององค์การของบุคลากรธนาคารของรัฐในกรุงเทพมหานคร
Creators: name: สิริพัฒน์ เสวิกุล
name: อมรา รัตตากร
name: ชัยเสฏฐ์ พรหมศรี
Publisher: name: สมาคมปรัชญาดุษฎีบัณฑิตทางสังคมศาสตร์ มหาวิทยาลัยรามคำแหง
Year: 2562
Subjects: ความฉลาดทางสังคม
ความพึงพอใจในการทำงาน
พฤติกรรมการเป็นสมาชิกที่ดีขององค์การ
Social Intelligence
Job Satisfaction
Organization Citizenship Behavior

description: วารสารดุษฎีบัณฑิตทางสังคมศาสตร์, 9, 3, 660-674
Wide-band view of High Frequency QPOs of GRS 1915+105 in 'softer' variability classes observed with AstroSat
Creators: name: Majumder, Seshadri
name: Sreehari, H.
name: Aftab, Nafisa
name: Katoch, Tilak
name: Das, Santabrata
name: Nandi, Anuj
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a comprehensive temporal and spectral analysis of the 'softer' variability classes ($i.e.$, $θ$, $β$, $δ$, $ρ$, $κ$, $ω$ and $γ$) of the source GRS 1915+105 observed by AstroSat during $2016-2021$ campaign. Wide-band ($3-60$ keV) timing studies reveal the detection of High Frequency Quasi-periodic Oscillations (HFQPOs) with frequency of $68.14-72.32$ Hz, significance of $2.75-11 σ$, and rms amplitude of $1.48-2.66\%$ in $δ$, $κ$, $ω$ and $γ$ variability classes. Energy dependent power spectra impart that HFQPOs are detected only in $6-25$ keV energy band and rms amplitude is found to increase ($1-8\%$) with energy. The dynamical power spectra of $κ$ and $ω$ classes demonstrate that HFQPOs seem to be correlated with high count rates. We observe that wide-band ($0.7-50$ keV) energy spectra can be described by the thermal Comptonization component (nthComp) with photon index ($Γ_{\rm nth}$) of $1.83-2.89$ along with an additional steep ($Γ_{\rm PL}\sim3$) powerlaw component. The electron temperature ($kT_e$) of $1.82 -3.66$ keV and optical depth ($τ$) of $2-14$ indicate the presence of a cool and optically thick corona. In addition, nthComp components ($1.97 \lesssim Γ_{\rm nth} \lesssim 2.44$, $1.06 \times 10^{-8} \lesssim F_{\rm nth} ~({\rm erg} {\rm ~cm}^{-2} {\rm ~s}^{-1}) \lesssim 4.46\times 10^{-8}$) are found to dominate in presence of HFQPOs. Overall, these findings infer that HFQPOs are possibly resulted due to the modulation of the 'Comptonizing corona'. Further, we find that the bolometric luminosity ($0.3-100$ keV) of the source lies within the sub-Eddington ($3-34\%$ $L_{\rm Edd}$) regime. Finally, we discuss and compare the obtained results in the context of existing models on HFQPOs.
description: 15 pages, 10 figures, Accepted for publication in MNRAS
PyWolf: A PyOpenCL implementation for simulating the propagation of partially coherent light
Creators: name: Magalhães, Tiago E. C.
name: Rebordão, José M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present PyWolf, an open-source software capable of performing numerical simulations of partially coherent light propagation from two-dimensional light sources. PyWolf computes the evolution of a user-defined cross-spectral density function in the Fresnel and far field approximations, which enables the retrieval of second-order optical quantities of interest such as the spectral degree of coherence and spectral density for a given frequency. The open-source tool kit PyOpenCL is used to increase the computation speed. We present examples of propagation of different source models and optical systems to validate our implementation. Performance results for the computation speed when using parallel computation through PyOpenCL is shown. Source models and propagation systems can be easily added to PyWolf, which has a graphical user interface built with PyQt5. This software can be of great utility for partially coherent light simulation problems that are difficult to treat analytically.
description: 16 pages, 9 figures, preprint to submitted to Computer Physics Communications (Elsevier)
Global Parallels in Russian Literature
Creators: name: Shavirin, Serge
Publisher: name: figshare
Year: 2017
Subjects: subject: Literature
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: Religious Studies

description: Что общего между русской классической литературой и изображениями Наска в Перу? Чилболтонскийфеномен. Идейные параллели между главами ``Евгения Онегина'', романами Федора Достоевского и ЛьваТолстого. Отображение глав ``Евгения Онегина'' на страстную седмицу, десять заповедей икаббалистический алфавит. Параллели между романами Достоевского, Толстого и другими писателямирусской классики.
A Developmental Approach to the Study of Affective Bonds for Human-Robot Interaction
Creators: name: Hiolle, Antoine
Publisher: name: UH Research Archive
Year: 2016
Subjects: Developmental robotics
affective robotics
emotions
attachment theory
neural networks
machine learning
exploration
responsiveness
caregiving

description: Robotics agents are meant to play an increasingly larger role in our everyday lives. To be successfully integrated in our environment, robots will need to develop and display adaptive, robust, and socially suitable behaviours. To tackle these issues, the robotics research community has invested a considerable amount of efforts in modelling robotic architectures inspired by research on living systems, from ethology to developmental psychology. Following a similar approach, this thesis presents the research results of the modelling and experimental testing of robotic architectures based on affective and attachment bonds between young infants and their primary caregiver. I follow a bottom-up approach to the modelling of such bonds, examining how they can promote the situated development of an autonomous robot. Specifically, the models used and the results from the experiments carried out in laboratory settings and with naive users demonstrate the impact such affective bonds have on the learning outcomes of an autonomous robot and on the perception and behaviour of humans. This research leads to the emphasis on the importance of the interplay between the dynamics of the regulatory behaviours performed by a robot and the responsiveness of the human partner. The coupling of such signals and behaviours in an attachment-like dyad determines the nature of the outcomes for the robot, in terms of learning or the satisfaction of other needs. The experiments carried out also demonstrate of the attachment system can help a robot adapt its own social behaviour to that of the human partners, as infants are thought to do during their development.
Emerging chimera states under non-identical counter-rotating oscillators
Creators: name: Sathiyadevi, K.
name: Chandrasekar, V. K.
name: Lakshmanan, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Frequency plays a crucial role in exhibiting various collective dynamics in the coexisting co- and counter-rotating (CR) systems. To illustrate the impact of CR frequencies, we consider a network of non-identical and globally coupled Stuart-Landau oscillators with additional perturbation. Primarily, we investigate the dynamical transitions in the absence of perturbation, demonstrating that the transition from desynchronized state to cluster oscillatory state occurs through an interesting partial synchronization state. Followed by this, the system dynamics transits to amplitude death and oscillation death states. Importantly, we find that the observed dynamical states do not preserve the parity(P) symmetry in the absence of perturbation. When the perturbation is increased one can note that the system dynamics exhibits a new kind of transition which corresponds to a change from incoherent mixed synchronization to coherent mixed synchronization through chimera state. In particular, incoherent mixed synchronization and coherent mixed synchronization states completely preserve the P-symmetry, whereas the chimera state preserves the P-symmetry only partially. To demonstrate the occurrence of such partial symmetry breaking (chimera) state, we use basin stability analysis and discover that PSB exists as a result of the coexistence of symmetry preserving and symmetry breaking behavior in the initial state space. Further, a measure of the strength of P-symmetry is established to quantify the P-symmetry in the observed dynamical states. Finally, by increasing the network size, the robustness of the chimera is also inspected and we find that the chimera state is robust even in networks of larger sizes. We also show the generality of the above results in the related phase reduced model as well as in other coupled models such as the globally coupled van der Pol and Rössler oscillators.
description: 14 pages, 14 figures; Accepted for publication in Phys. Rev. E
Influence of Asymmetric Parameters in Higher-Order Coupling With Bimodal Frequency Distribution
Creators: name: Manoranjani, M.
name: Gopal, R.
name: Senthilkumar, D. V.
name: Chandrasekar, V. K.
name: Lakshmanan, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We investigate the phase diagram of the Sakaguchi-Kuramoto model with a higher order interaction along with the traditional pairwise interaction. We also introduce asymmetry parameters in both the interaction terms and investigate the collective dynamics and their transitions in the phase diagrams under both unimodal and bimodal frequency distributions. We deduce the evolution equations for the macroscopic order parameters and eventually derive pitchfork and Hopf bifurcation curves. Transition from the incoherent state to standing wave pattern is observed in the presence of the unimodal frequency distribution. In contrast, a rich variety of dynamical states such as the incoherent state, partially synchronized state-I, partially synchronized state-II, and standing wave patterns and transitions among them are observed in the phase diagram, via various bifurcation scenarios including saddle-node and homoclinic bifurcations, in the presence of bimodal frequency distribution. Higher order coupling enhances the spread of the bistable regions in the phase diagrams and also leads to the manifestation of bistability between incoherent and partially synchronized states even with unimodal frequency distribution, which is otherwise not observed with the pairwise coupling. Further, the asymmetry parameters facilitate the onset of several bistable and multistable regions in the phase diagrams. Very large values of the asymmetry parameters allow the phase diagrams to admit only the monostable dynamical states.
description: 13 pages, 8 figures, Accepted for publication in Phys. Rev. E
Switchable selective interactions in a Dicke Model with Driven Biased term
Creators: name: Yu, Ning
name: Wang, Shiran
name: Sun, Chunfang
name: Wang, Gangcheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we propose a method to investigate controllable qubit-resonator interactions in a Dicke model with driven biased term. The nonlinearity of spectrum, which can be induced by qubit-resonator interactions, plays an important role in such controllable interactions. To gain insight into mechanism of the nonlinearity, we perform a unitary transformation to the Hamiltonian. The results show that the nonlinearity of the transformed Hamiltonian depends on the qubit-resonator coupling strength. The general forms of the effective Hamiltonians are discussed in detail based on the frequency modulation approach. The dynamical evolution can be switched on and off by adjusting the modulation parameters. By utilizing such controllable interactions, we discuss the creation of Dicke states and arbitrary superposition of Dicke states. We also consider the nonlinearity of energy level for the limit of large qubit numbers. In the thermodynamics limit, the kerr type nonlinearity is induced from "magnon"-resonator coupling, and the selective preparation of "magnon" Fock states can be studied under "magnon" scenario.
description: 10 pages, 6 figures, accepted by Physical Review E
A solar-cycle study of coronal rotation: large variations, rapid changes, and implications for solar wind models
Creators: name: Edwards, Liam T.
name: Kuridze, David
name: Williams, Thomas
name: Morgan, Huw
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Information on the rotation rate of the corona, and its variation over latitude and solar cycle, is valuable for making global connections between the corona and the Sun, for global estimates of reconnection rates, and as a basic parameter for solar wind modelling. Here, we use a time series of tomographical maps gained from coronagraph observations between 2007 - 2020 to directly measure the longitudinal drift of high-density streamers over time. The method reveals abrupt changes in rotation rates, revealing a complex relationship between the coronal rotation and the underlying photosphere. The majority of rates are between -1.0 to +0.5$^\circ$/day relative to the standard Carrington rate of 14.18$^\circ$/day, although rates are measured as low as -2.2$^\circ$/day and as high as 1.6$^\circ$/day. Equatorial rotation rates during the 2008 solar minimum are slightly faster than the Carrington rate, with an abrupt switch to slow rotation in 2009, then a return to faster rates in 2017. Abrupt changes and large variations in rates are seen at all latitudes. Comparison with a magnetic model suggests that periods of equatorial fast rotation are associated with times when a large proportion of the magnetic footpoints of equatorial streamers are near the equator, and we interpret the abrupt changes in terms of the latitudinal distribution of the streamer photospheric footpoints. The coronal rotation rate is a key parameter for solar wind models, and variations of up to a degree per day or more can lead to large systematic errors over forecasting periods of longer than a few days. The approach described in this paper gives corrected values that can form a part of future forecasting efforts.
Continuous Steepest Descent Path for Traversing Non-Convex Regions
Creators: name: Beddiaf, Salah
Publisher: name: UH Research Archive
Year: 2016
Subjects: non-convex optimisations
unconstrained minimisations
gradient flow methods
trust region methods
curvilinear search methods
continuous steepest descent paths
descent methods

description: In this thesis, we investigate methods of finding a local minimum for unconstrained problems of non-convex functions with n variables, by following the solution curve of a system of ordinary differential equations. The motivation for this was the fact that existing methods (e.g. those based on Newton methods with line search) sometimes terminate at a non-stationary point when applied to functions f(x) that do not a have positive-definite Hessian (i.e. ∇2f ≻ 0) for all x. Even when methods terminate at a stationary point it could be a saddle or maximum rather than a minimum. The only method which makes intuitive sense in non-convex region is the trust region approach where we seek a step which minimises a quadratic model subject to a restriction on the two-norm of the step size. This gives a well-defined search direction but at the expense of a costly evaluation. The algorithms derived in this thesis are gradient based methods which require systems of equations to be solved at each step but which do not use a line search in the usual sense. Progress along the Continuous Steepest Descent Path (CSDP) is governed both by the decrease in the function value and measures of accuracy of a local quadratic model. Numerical results on specially constructed test problems and a number of standard test problems from CUTEr [38] show that the approaches we have considered are more promising when compared with routines in the optimization tool box of MATLAB [46], namely the trust region method and the quasi-Newton method. In particular, they perform well in comparison with the, superficially similar, gradient-flow method proposed by Behrman [7].
Life After Infertility: a Grounded Theory of Moving on From Unsuccessful Fertility Treatment
Creators: name: Hesselvik, Louise
Publisher: name: UH Research Archive
Year: 2018
Subjects: Infertility
Childlessness
Involuntary childlessness
Unsuccessful fertility treatment
Assisted reproductive technology
Grounded theory
Adjustment

description: Despite the many advances of medical technology to help treat infertility, approximately half of women seeking fertility treatment will never give birth to a child. Women coping with treatment failure face many challenges, including deciding when to abandon treatment and how to let go of their dreams of having a baby to focus on other pursuits. In order to better understand how women cope with these challenges, in depth interviews and a focus group were carried out with 12 women for whom fertility treatment had not been successful. Data was gathered and analysed using Grounded Theory, and a model of the process of adjustment from pursuing treatment to coming to terms with involuntary childlessness was co-constructed from the data. The model conceptualizes women’s journey as moving through three main phases; ‘living in limbo’ in which women are still undergoing treatment, ‘leaving treatment’ in which women decide to terminate treatment and abandon the search for a resolution to their infertility, and finally ‘learning to live with involuntary childlessness’ in which women start the ‘work’ of grappling with the questions that childlessness seems to raise about the meaning of their lives, their identity and self image, and their sense of social belonging. The model goes on to highlight the factors which seem to aid women in resolving these challenges. The findings of this study suggest that the emotional challenges of coping with unsuccessful fertility treatment extend well beyond the end of treatment, highlighting the need for good access to therapeutic support for women coping with involuntary childlessness longer term. Results also point to certain sources and types of support which may be particularly helpful, including peer support from other childless women, and therapeutic interventions which help women develop more positive perspectives on childlessness and to identify alternative sources of fulfillment. The results of this study also point to the need for social action which works to challenge the misconceptions and stigma surrounding infertility and childlessness which add a further challenge to the lives of women who are involuntarily childless.
Charge radii of Ca isotopes and correlations
Creators: name: Co', G.
name: Anguiano, M.
name: Lallena, A. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the effects of short- and long-range correlations on the charge radii of Ca isotopes. We start our investigation with an independent particle model consisting in Hartree-Fock plus Bardeen-Cooper-Schrieffer calculations with finite-range effective nucleon-nucleon interactions of Gogny type. The short-range correlations effects are evaluated by considering all the terms of a cluster expansion containing a single correlation line. The long-range correlations are taken into account by including the coupling with the quasi-particle random phase approximation phonons. While the effects of the short-range correlations are negligible, those of the long-range correlations largely modify the independent particle model results and improve the agreement with the experimental data.
description: 9 pages, 5 figures, 1 table. Accepted for publication in Physical Review C
A dynamo simulation generating Saturn-like small magnetic dipole tilts
Creators: name: Yadav, Rakesh K.
name: Cao, Hao
name: Bloxham, Jeremy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Among planetary dynamos, the magnetic field of Saturn stands out in its exceptional level of axisymmetry. One of its peculiar features is that the magnetic dipole mode is tilted with respect to the planetary rotation axis by only $\approx 0.007^{\circ}$ or less. Numerical dynamo simulations performed in this context have had great difficulty in producing such small dipole tilt angles without introducing ad hoc ingredients such as a latitudinally varying heat flux pattern in the outer layers or stably stratified layers (SSL). Here we present a numerical dynamo simulation that generates a highly axisymmetric dynamo with a dipole tilt of about $\approx 0.0008^{\circ}$ on average. The model consists of a deep dynamo layer and an overlying low-conductivity layer but without any SSL. We highlight a novel mechanism where strong differential rotation generated in the atmospheric layer penetrates into the dynamo region, helping to maintain a very small magnetic dipole tilt.
description: To appear in Geophysical Research Letters; 11 pages, double columns
Spectroscopic and imaging observations of transient hot and cool loops by IRIS and SDO
Creators: name: Gupta, Girjesh R.
name: Nayak, Sushree S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Coronal loops are basic building blocks of solar atmosphere and are observed on various length scales. However, their formation mechanism is still unclear. In this paper, we present the spectroscopic and imaging observations of small-scale transients and subsequent formation of transient loops. For the purpose, we have utilized the multi-wavelength observations recorded by AIA and IRIS-SJI, along with spectroscopic measurements provided by IRIS. For the photospheric magnetic field data, we obtained line-of-sight magnetogram data provided by HMI. Small-scale transients are simultaneously observed with several EUV and UV passbands of AIA and IRIS-SJI. HMI magnetogram provides evidence of negative flux cancellations beneath these transients. Differential Emission Measure (DEM) analysis shows that one of the transient attains temperature up to 8 MK whereas another one reaches only up to 0.4 MK. These transients further lead to the formation of small-scale loops with similar temperature distributions, and thus termed as hot and cool loops respectively. During the course of events, IRIS slit was rastering the region and thus provided spectroscopic measurements at both transients and associated loops. This enabled us to perform in-depth investigations of hot and cool loops. Using density sensitive O IV line pair, we obtained average electron densities along the hot and cool loop to be $10^{11.2}$ and $10^{10.8}$ cm$^{-3}$ respectively. Energy estimates suggest that flux cancellation can easily power the hot transient whereas is insufficient for cool transient. Life time estimates and magnetic field extrapolation suggest presence of small-scale and fine structures within these loops. Results provide crucial ingredients on the physics of loop formation and involved thermodynamics.
description: 15 pages, 18 figures, 2 tables; Accepted for publication in MNRAS
Efficacy and safety of tapentadol prolonged release for moderate-to-severe chronic osteoarthritis knee pain: a pooled analysis of two double-blind, randomized, placebo- and oxycodone controlled release-controlled studies
Creators: name: Lange, Bernd
name: Zabern, Detlef Von
name: Elling, Christian
name: Dubois, Cecile
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Objective: To compare efficacy and safety of tapentadol prolonged-release (PR) and oxycodone-controlled release (CR) in moderate-to-severe chronic osteoarthritis knee pain. Methods: Data from two double-blind, randomized, placebo- and oxycodone CR-controlled phase 3 studies with a 3-week titration period and 12-week controlled dose adjustment maintenance period were pooled. Primary efficacy end-points were change from baseline in average pain intensity at week 12 (US end-point) and over the entire maintenance period (non-US end-point). Results: A total of 2,010 patients were assessed. For both primary end-points, tapentadol PR was significantly more effective than oxycodone CR (LS mean difference of –0.41 [95% CI = –0.65, –0.16; p = 0.001] at week 12 and –0.35 [95% CI = –0.58, –0.12; p = 0.003] over 12 weeks of maintenance [last observation carried forward]). Significantly better outcomes than for oxycodone CR were also observed for patient global impression of change, both Short Form-36 component scores, and EuroQoL-5Dimensions health status index (all p p Conclusions: The analyses suggest that tapentadol PR provided superior pain relief and a more improved overall health status than oxycodone CR in a large patient population with moderate-to-severe chronic osteoarthritis pain. Compared to oxycodone CR, tapentadol PR showed a more favorable tolerability profile with better gastrointestinal tolerability.
The in situ origin of the globular cluster NGC 6388 from abundances of Sc, V, and Zn of a large sample of stars
Creators: name: Carretta, Eugenio
name: Bragaglia, Angela
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: Chemical tagging of globular clusters (GCs) is often done using abundances of alpha-elements. The iron-peak elements Sc, V, and in particular Zn were proposed as an alternative to alpha-elements to tag accreted GCs in the metal-rich regime, where the dwarf galaxy Sagittarius and its GCs show peculiarly marked under-abundances of these heavier species with respect to Milky Way stars. A handful of stars in NGC 6388 was used to suggest an accreted origin for this GC, contradicting the results from dynamics. We tested the efficiency of the iron-peak method by using large samples of stars in NGC 6388, compared to thousands of field stars in the disc and the bulge of the Milky Way. Our abundance ratios of Sc (185 stars) and V (35 stars) for NGC 6388 are within about 1.5 sigma from the average for the field stars with a similar metallicity, and they are in perfect agreement for Zn (31 stars), claimed to be the most sensitive element concerning the accretion pattern. Moreover, the chemo-dynamical plots, coupled to the bifurcated age-metallicity relation of GCs in the Galaxy, clearly rule out any association of NGC 6388 to the groups of accreted GCs. Using a large set of GC abundances from the literature, we also show that the new method with Sc, V, and Zn seems to be efficient in picking up GCs related to the Sagittarius dwarf galaxy. Whether this is also generally true for accreted GCs seems to be less evident, and it should be verified with larger and homogeneous samples of stars both in the field and in GCs.
description: 12 pages, 4 figures plus 7 figures in Appendix; accepted for publication as a Letter in Astronomy and Astrophysics
Observed cosmic evolution of galaxy dust properties with metallicity and tensions with models
Creators: name: Popping, Gergö
name: Péroux, Céline
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The dust abundance of the interstellar medium plays an important role in galaxy physics, the chemical evolution of matter and the absorption and re-emission of stellar light. The last years have seen a surge in observational and theoretical studies constraining the dust-abundance of galaxies up to $z\sim5$. In this work we gather the latest observational measurements (with a focus on absorption studies covering metallicities in the range $6.8 < 12 + \log{(O/H)}<9$) and theoretical predictions (from six different galaxy formation models) for the dust-to-gas (DTG) and dust-to-metal (DTM) ratio of galaxies. The observed trend between DTG and DTM and gas-phase metallicity can be described by a linear relation and shows no evolution from $0
description: Accepted for publication in MNRAS. Some corrections added
Efficacy and safety of tapentadol prolonged-release for moderate-to-severe chronic osteoarthritis knee pain: a pooled analysis of two double-blind, randomized, placebo- and oxycodone controlled-release studies
Creators: name: Lange, Bernd
name: Zabern, Detlef Von
name: Elling, Christian
name: Dubois, Cecile
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Cancer

description: Objective. To compare efficacy and safety of tapentadol prolonged-release (PR) and oxycodone-controlled release (CR) in moderate to severe chronic osteoarthritis knee pain. Methods. Data from two double-blind, randomized, placebo- and oxycodone CR-controlled phase 3 studies with 3-week titration period and 12-week controlled dose adjustment maintenance period were pooled. Primary efficacy endpoints were change from baseline in average pain intensity at week 12 (US endpoint) and over the entire maintenance period (non-US endpoint). Results. A total of 2010 patients were assessed. For both primary endpoints, tapentadol PR was significantly more effective than oxycodone CR (LS mean difference of -0.41 [95% CI -0.65, -0.16; p = 0.001] at week 12 and -0.35 [95% CI -0.58, -0.12; p = 0.003] over 12 weeks of maintenance [last observation carried forward]). Significantly better outcomes than for oxycodone CR were also observed for patient global impression of change, both Short Form-36 component scores, and EuroQoL-5Dimensions health status index (all p Conclusions. The analyses suggest that tapentadol PR provided superior pain relief and a more improved overall health status than oxycodone CR in a large patient population with moderate to severe chronic osteoarthritis pain. Compared to oxycodone CR, tapentadol PR showed a more favourable tolerability profile with better gastrointestinal tolerability.
Electronic Structure of ThPd$_2$Al$_3$: an impact of the U $5f$ states in the electronic structure of UPd$_2$Al$_3$
Creators: name: Fujimori, Shin-ichi
name: Takeda, Yukiharu
name: Yamagami, Hiroshi
name: Pospíšil, Jiří
name: Yamamoto, Etsuji
name: Haga, Yoshinori
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electronic structure of ThPd$_2$Al$_3$, which is isostructural to the heavy fermion superconductor UPd$_2$Al$_3$, was investigated by photoelectron spectroscopy. The band structure and Fermi surfaces of ThPd$_2$Al$_3$ were obtained by angle-resolved photoelectron spectroscopy (ARPES), and the results were well-explained by the band-structure calculation based on the local density approximation. The comparison between the ARPES spectra and the band-structure calculation suggests that the Fermi surface of ThPd$_2$Al$_3$ mainly consists of the Al $3p$ and Th $6d$ states with a minor contribution from the Pd $4d$ states. The comparison of the band structures between ThPd$_2$Al$_3$ and UPd$_2$Al$_3$ argues that the U $5f$ states form Fermi surfaces in UPd$_2$Al$_3$ through hybridization with the Al $3p$ state in the Al layer, suggesting that the Fermi surface of UPd$_2$Al$_3$ has a strong three-dimensional nature.
description: accepted to Phys. Rev. B
Measurement of horizontal air showers with the Auger Engineering Radio Array
Creators: name: Kambeitz, Olga
Publisher: name: Karlsruhe
Year: 2017

description: The Auger Engineering Radio Array (AERA), at the Pierre Auger Observatory in Argentina, measures the radio emission of extensive air showers in the 30-80 MHz frequency range. AERA consists of more than 150 antenna stations distributed over 17 km2. Together with the Auger surface detector, the fluorescence detector and the underground muon detector (AMIGA), AERA is able to measure cosmic rays with energies above 1017 eV in a hybrid detection mode. AERA is optimized for the detection of air showers up to 60° zenith angle, however, using the reconstruction of horizontal air showers with the Auger surface array, very inclined showers can also be measured. In this contribution an analysis of the AERA data in the zenith angle range from 62° to 80° will be presented. CoREAS simulations predict radio emission footprints of several km2 for horizontal air showers, which are now confirmed by AERA measurements. This can lead to radio-based composition measurements and energy determination of horizontal showers in the future and the radio detection of neutrino induced showers is possible.
Role of limiting dispersal on metacommunity stability and persistence
Creators: name: Chowdhury, Snehasish Roy
name: Arumugam, Ramesh
name: Zou, Wei
name: Chandrasekar, V. K.
name: Senthilkumar, D. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The role of dispersal on the stability and synchrony of a metacommunity is a topic of considerable interest in theoretical ecology. Dispersal is known to promote both synchrony, which enhances the likelihood of extinction, and spatial heterogeneity, which favors the persistence of the population. Several efforts have been made to understand the effect of diverse variants of dispersal in the spatially distributed ecological community. Despite the environmental change strongly affect the dispersal, the effects of controlled dispersal on the metacommunity stability and their persistence remain unknown. We study the influence of limiting the immigration using two patch prey-predator metacommunity at both local and spatial scales. We find that the spread of the inhomogeneous stable steady states (asynchronous states) decreases monotonically upon limiting the predator dispersal. Nevertheless, at the local scale, the spread of the inhomogeneous steady states increases up to a critical value of the limiting factor, favoring the metacommunity persistence, and then starts decreasing for further decrease in the limiting factor with varying local interaction. Interestingly, limiting the prey dispersal promotes inhomogeneous steady states in a large region of the parameter space, thereby increasing the metacommunity persistence both at spatial and local scales. Further, we show similar qualitative dynamics in an entire class of complex networks consisting of a large number of patches. We also deduce various bifurcation curves and stability condition for the inhomogeneous steady states, which we find to agree well with the simulation results. Thus, our findings on the effect of the limiting dispersal can help to develop conservation measures for ecological community.
description: Accepted for Publication in Physical Review E
Brainstem injury in motor vehicle crashes
Creators: name: Viano, David C.
name: Parenteau, Chantal S.
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Objective: This is a descriptive study of the frequency and risk for brainstem injury by crash type, belt use, and crash severity (delta-V). NASS-CDS electronic cases were reviewed to see whether the transition from vehicles without advanced airbags and seat belts and side airbags and curtains to vehicles with the safety technologies has influenced the risk for brainstem injury. Methods: 1994–2013 NASS-CDS was analyzed to determine the number of brainstem injuries in nonejected adults (15+ years old) in vehicle crashes. Crashes were grouped by front, side, rear, and rollover. The effect of belt use was investigated. Light vehicles were included with model year (MY) 1994+. Occupants with severe head injury (Abbreviated Injury Scale [AIS] 4+) and Maximum Abbreviated Injury Scale (MAIS) 4+F injury were also determined. The risk for injury with standard errors was determined using the MAIS 0+F exposure by belt use and crash type. NASS-CDS electronic cases were studied with brainstem injury in 2001–2013 MY vehicles. Results: NASS-CDS indicates there are 872 ± 133 cases of brainstem injury per year. About 16.0% of AIS 4+ head injury involves the brainstem. For belted occupants, the highest risk for brainstem injury was in side impacts at 0.065 ± 0.010%. In contrast, the highest risk for brainstem injury was 0.310 ± 0.291% in rear impacts and 0.310 ± 0.170% in rollovers for unbelted occupants. The risk for brainstem injury increased with crash severity. The highest risk for brainstem injury was 3.54 ± 1.45% in crashes with >72 km/h (>45 mph) delta-V. Exponential functions fit the change in risk with delta-V. Eighteen NASS-CDS electronic cases showed that brainstem injury occurred in very severe collisions where the occupant experienced multiple injuries from intrusion or impact on vehicle structures stiffened by deformation. Conclusions: The risk for brainstem injury in belted occupants has remained essentially constant over 20 years, whereas the risk for MAIS 4+F injury has declined 38.3%. The prevention of brainstem injuries must address the extreme speed of collisions and weight mismatches that overwhelm structures, seat belts, frontal airbags, side airbags, and curtains in modern vehicles.
ตัวแบบของคณะกรรมการชุมชนที่เข้มแข็งในการพัฒนาชุมชนแออัด ในกรุงเทพมหานคร
Creators: name: สุพัตรา ยอดสุรางค์
name: อำนวย บุญรัตนไมตรี
name: ปธาน สุวรรณมงคล
name: หควณ ชูเพ็ญ
Publisher: name: สมาคมปรัชญาดุษฎีบัณฑิตทางสังคมศาสตร์ มหาวิทยาลัยรามคำแหง
Year: 2562
Subjects: คณะกรรมการชุมชน
คณะกรรมการชุมชนที่เข้มแข็ง
การพัฒนาชุมชนแออัด
Community Committees
Strong Community Committees
Slum Development

description: วารสารดุษฎีบัณฑิตทางสังคมศาสตร์, 9, 3, 675-691
Persistence of fermionic spin excitations through a genuine Mott transition in $κ$-type organics
Creators: name: Imajo, Shusaku
name: Kato, Naoko
name: Marckwardt, Robert J.
name: Yesil, Emre
name: Akutsu, Hiroki
name: Nakazawa, Yasuhiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the continuous variation of electronic states from a Fermi liquid to a quantum spin liquid induced by chemical substitution in the organic dimer-Mott system of $κ$-[(BEDSe-TTF)$_x$(BEDT-TTF)$_{1-x}$]$_2$Cu[N(CN)$_2$]Br. Electrical transport measurements reveal that the mixing of BEDSe-TTF into the BEDT-TTF layers induces a quantum Mott transition around $x$=0.10. Although a charge gap disappears at this point, magnetic susceptibility and heat capacity measurements indicate that fermionic low-energy excitations remain in the insulating salts, suggesting that fermionic spin excitations persist. We propose that the transition can be classified into a genuine Mott transition.
description: 7pages, 1 table, and 4 figures
ปัจจัยที่มีอิทธิต่อพฤติกรรมการท่องเที่ยวเชิงสุขภาพของผู้สูงอายุ ในจังหวัดนครศรีธรรมราช
Creators: name: นฤมล รัตนไพจิตร
name: ราตรี เขียวรอด
name: ตรีวนันท์ เนื่องอุทัย
Publisher: name: สมาคมปรัชญาดุษฎีบัณฑิตทางสังคมศาสตร์ มหาวิทยาลัยรามคำแหง
Year: 2562
Subjects: การท่องเที่ยวเชิงสุขภาพ
ผู้สูงอายุ
จังหวัดนครศรีธรรมราช
Health Tourism Behavior
Elderly People
Nakhon Si Thammarat Province

description: วารสารดุษฎีบัณฑิตทางสังคมศาสตร์, 9, 3, 692-704
การเปลี่ยนแปลงทางวัฒนธรรม: ภาษาและการแต่งกายของชาวภูไทเรณูนคร ในภาคตะวันออกเฉียงเหนือของประเทศไทย
Creators: name: สุเนตร ศรีหาคลัง
name: จิรโชค วีระสย
name: รังสรรค์ สิงหเลิศ
name: บุญสม ยอดมาลี
Publisher: name: สมาคมปรัชญาดุษฎีบัณฑิตทางสังคมศาสตร์ มหาวิทยาลัยรามคำแหง
Year: 2562
Subjects: การเปลี่ยนแปลงทางวัฒนธรรม
ชาวภูไท
ภาษาและการแต่งกาย
ชาวภูไทเรณูนคร
Cultural Change
Phu Thai
Language and Dress
Phu Thai Renu Nakhon

description: วารสารดุษฎีบัณฑิตทางสังคมศาสตร์, 9, 3, 705-715
Plant Bax Inhibitor-1 Interacts with ATG6 to Regulate Autophagy and Programmed Cell Death
Creators: name: Guoyong Xu
name: Shanshan Wang
name: Shaojie Han
name: Xie, Ke
name: Wang, Yan
name: Jinlin Li
name: Yule Liu
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences
subject: 60506 Virology

description: Autophagy is an evolutionarily conserved catabolic process and is involved in the regulation of programmed cell death during the plant immune response. However, mechanisms regulating autophagy and cell death are incompletely understood. Here, we demonstrate that plant Bax inhibitor-1 (BI-1), a highly conserved cell death regulator, interacts with ATG6, a core autophagy-related protein. Silencing of BI-1 reduced the autophagic activity induced by both N gene-mediated resistance to Tobacco mosaic virus (TMV) and methyl viologen (MV), and enhanced N gene-mediated cell death. In contrast, overexpression of plant BI-1 increased autophagic activity and surprisingly caused autophagy-dependent cell death. These results suggest that plant BI-1 has both prosurvival and prodeath effects in different physiological contexts and both depend on autophagic activity.
ความขัดแย้งด้านสิ่งแวดล้อมจากโครงการพัฒนาขนาดใหญ่ในประเทศไทย กรณีศึกษา โครงการขยายกำลังผลิตโรงไฟฟ้าถ่านหินกระบี่
Creators: name: สวัสดิ์ สัตพรพันธ์
name: จุฑารัตน์ ชมพันธุ์
Publisher: name: สมาคมปรัชญาดุษฎีบัณฑิตทางสังคมศาสตร์ มหาวิทยาลัยรามคำแหง
Year: 2562
Subjects: ความขัดแย้งด้านสิ่งแวดล้อม
การมีส่วนร่วมของประชาชน
โรงไฟฟ้าถ่านหินกระบี่
Environmental Conflict
Public Participation
Krabi Coal-Fired Power Plant

description: วารสารดุษฎีบัณฑิตทางสังคมศาสตร์, 9, 3, 716-729
การวิเคราะห์กฎหมายว่าด้วยความรับผิดทางอาญาของเด็กและเยาวชน
Creators: name: บรรชร เกตุเทียน
name: สุขสมัย สุทธิบดี
name: อุทัย อาทิเวช
name: วัชรินทร์ ปัจเจกวิญญูสกุล
Publisher: name: สมาคมปรัชญาดุษฎีบัณฑิตทางสังคมศาสตร์ มหาวิทยาลัยรามคำแหง
Year: 2562
Subjects: กฎหมายอาญา
ความรับผิดทางอาญา
เด็กและเยาวชน
Criminal Law
Criminal Liability
Children and Juveniles

description: วารสารดุษฎีบัณฑิตทางสังคมศาสตร์, 9, 3, 730-743
Plant Bax Inhibitor-1 interacts with ATG6 to regulate autophagy and programmed cell death
Creators: name: Guoyong Xu
name: Shanshan Wang
name: Shaojie Han
name: Xie, Ke
name: Wang, Yan
name: Jinlin Li
name: Yule Liu
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: FOS: Biological sciences
subject: 60506 Virology

description: Autophagy is an evolutionarily conserved catabolic process and is involved in the regulation of programmed cell death during the plant immune response. However, mechanisms regulating autophagy and cell death are incompletely understood. Here, we demonstrate that plant Bax inhibitor-1 (BI-1), a highly conserved cell death regulator, interacts with ATG6, a core autophagy-related protein. Silencing of BI-1 reduced the autophagic activity induced by both N gene-mediated resistance to Tobacco mosaic virus (TMV) and methyl viologen (MV), and enhanced N gene-mediated cell death. In contrast, overexpression of plant BI-1 increased autophagic activity and surprisingly caused autophagy-dependent cell death. These results suggest that plant BI-1 has both prosurvival and prodeath effects in different physiological contexts and both depend on autophagic activity.
การพัฒนาระบบเทคโนโลยีสารสนเทศด้านโครงสร้างต้นทุนโลจิสติกส์ ในอุตสาหกรรมปลาสวยงามเพื่อการส่งออกของประเทศไทย
Creators: name: มินท์มันตา หิรัณย์ณภัทร์
name: ศานติ ดิฐสถาพรเจริญ
name: สมพล สุขเจริญพงษ์
Publisher: name: สมาคมปรัชญาดุษฎีบัณฑิตทางสังคมศาสตร์ มหาวิทยาลัยรามคำแหง
Year: 2562
Subjects: ระบบเทคโนโลยีสารสนเทศ
โครงสร้างต้นทุนโลจิสติกส์
ระบบต้นทุนฐานกิจกรรม
อุตสาหกรรมปลาสวยงาม
ปลากัดไทย
Information Technology System
Logistics Cost Structure
Activity Based Costing
Ornamental Fish Industry
Siamese Fighting Fish

description: วารสารดุษฎีบัณฑิตทางสังคมศาสตร์, 9, 3, 744-761
Transfiguring identity: Social relationships and intercultural communication between foreign “children” and Japanese “parents”
Creators: name: Capobianco, Paul
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biophysics
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: This paper examines how intercultural communication and interpersonal relationships between Japanese “parents” and African “children” are capable of destabilizing status quo notions of identification. Using qualitative ethnographic data, this paper demonstrates how intercultural interactions unfold in ways that engender new forms of sociality, which underscore the diversifying nature of majority–minority relationships in Japan. Drawing on theoretical insights from applied linguistics and communications studies, this paper suggests that the material products of these relationships warrant increased scholarly attention because they are capable of positing compelling challenges to existing understandings of identity, as well as to the ways various groups conceptualize themselves in relation to others.