cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Force-free state in a superconducting single crystal and angle-dependent vortex helical instability
Creators: name: del Valle, J.
name: Gomez, A.
name: Gonzalez, E. M.
name: Manas-Valero, S.
name: Coronado, E.
name: Vicent, J. L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconducting 2H-NbSe2 single crystals show intrinsic low pinning values. Therefore, they are ideal materials with which to explore fundamental properties of vortices. (V, I) characteristics are the experimental data we have used to investigate the dissipation mechanisms in a rectangular shape 2H-NbSe2 single crystal. Particularly, we have studied dissipation behavior with magnetic fields applied in the plane of the crystal and parallel to the injected currents, i.e. in the force-free state where the vortex helical instability governs the vortex dynamics. In this regime, the data follow the elliptic critical state model and the voltage dissipation shows an exponential dependence.Moreover, this exponential dependence can be observed for in-plane applied magnetic fields up to 40 degrees off the current direction, which implies that the vortex helical instability plays a role in dissipation even out of the force-free configuration.
description: 13 pages, 6 figures
Resonance enhancement of dark matter interactions: the case for early kinetic decoupling and velocity dependent resonance width
Creators: name: Duch, Mateusz
name: Grzadkowski, Bohdan
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the possibility of enhancing dark matter (DM) self-interaction cross-section $σ_{\rm self}$, we have revisited the issue of DM annihilation through a Breit-Wigner resonance. In this case thermally averaged annihilation cross-section has strong temperature dependence, whereas elastic scattering of DM on the thermal bath particles is suppressed. This leads to the early kinetic decoupling of DM and an interesting interplay in the evolution of DM density and temperature that can be described by a set of coupled Boltzmann equations. The standard Breit-Wigner parametrization of a resonance propagator is also corrected by including momentum dependence of the resonance width. It has been shown that this effects may change predictions of DM relic density by more than order of magnitude in some regions of the parameter space. Model independent discussion is illustrated within a theory of Abelian vector dark matter. The model assumes extra $U(1)$ symmetry group factor and an additional complex Higgs field needed to generate a mass for the dark vector boson, which provides an extra neutral Higgs boson $h_2$. We discuss the resonance amplification of $σ_{\rm self}$. It turns out that if DM abundance is properly reproduced, the Fermi-LAT data favor heavy DM and constraint the enhancement of $σ_{\rm self}$ to the range, which cannot provide a solution to the small-scale structure problems.}
description: 17 pages, 5 figures, v2: minor changes in text, BBN and CMB constraints added
Higgs Sector of the Left-Right Symmetric Theory
Creators: name: Maiezza, Alessio
name: Senjanović, Goran
name: Vasquez, Juan Carlos
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We perform an in-depth analysis of the Higgs sector in the Minimal Left-Right Symmetric Model and compute the scalar mass spectrum and associated mixings, offering simple physical and symmetry arguments in support of our findings. We identify the tree-level quartic and cubic potential couplings in terms of the physical states and compute the quantum corrections for the latter ones. The deviations from the Standard Model prediction of the cubic Higgs doublet coupling are considered. Moreover we discuss the possible implications concerning the stability of the potential under the renormalization-group-equations evolution. In particular we examine three possible energy scales of parity restoration: LHC reach, next hadronic collider and very high energy relevant for grand unification.
description: Added references, version to appear in PRD
Long-term treatment of adult ADHD in a naturalistic setting: clinical predictors of attrition, medication choice, improvement, and response
Creators: name: Brancati, Giulio Emilio
name: De Dominicis, Francesco
name: Petrucci, Alessandra
name: Pallucchini, Alessandro
name: Carli, Marco
name: Medda, Pierpaolo
name: Schiavi, Elisa
name: De Rossi, Pietro
name: Vicari, Stefano
name: Perugi, Giulio
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
classificationCode: 111714
subject: Mental Health

description: Objectives: The aim of this study was to identify clinical predictors of treatment attrition, medication choice, improvement and response to pharmacotherapy in adult attention-deficit/hyperactivity disorder (ADHD). Methods: 150 ADHD patients were enrolled and naturalistically followed-up for at least 4 months. Conners’ Adult ADHD Rating Scales–Observer: Screening Version (CAARS-O:SV) were used to measure ADHD severity. Results: 58 subjects (38.7%) were lost at follow-up, while 75 (50%) completed follow-up assessment, on average after 26.05 ± 11.99 weeks; 35 were treated with atomoxetine (ATX) and 40 with methylphenidate (MPH). Treatments were moderately effective (d = 0.72) and 37 patients (49.3%) were responders (≥30% CAARS-O:SV decrease). Patients lost at follow-up had lower inattentive symptoms, less generalized anxiety and family history of bipolar disorder, more amphetamine use disorder than follow-up completers. Compared to ATX-treated subjects, MPH-treated patients had greater severity of hyperactivity/impulsivity and were more frequently diagnosed with alcohol use disorder. While MPH and ATX showed similar efficacy, more pronounced improvements were observed in patients with combined ADHD, anxiety and substance use disorders. ADHD severity and comorbid substance use positively predicted response. Conclusions: Consensus-based hierarchical treatment of ADHD comorbidity is not consistently supported. Comorbid anxiety, mood and substance use disorders should not discourage the treatment of adult ADHD.
Scalar extensions of categorical resolutions of singularities
Creators: name: Wei, Zhaoting
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: Category Theory (math.CT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 14F05, 16E45, 18E30

description: Let $X$ be a quasi-compact, separated scheme over a field k and we can consider the categorical resolution of singularities of $X$. In this paper let $k^{\prime}/k$ be a field extension and we study the scalar extension of a categorical resolution of singularities of $X$ and we show how it gives a categorical resolution of the base change scheme $X_{k^{\prime}}$. Our construction involves the scalar extension of derived categories of DG-modules over a DG algebra. As an application we use the technique of scalar extension developed in this paper to prove the non-existence of full exceptional collections of categorical resolutions for a projective curve of genus $\geq 1$ over a non-algebraically closed field.
description: 12 pages; Proposition 2.4 and Lemma 4.5 added, the proofs of Proposition 3.3 and Proposition 4.6 (previously Proposition 4.5) revised; to appear in Journal of Pure and Applied Algebra
Phonon-assisted Casimir interactions between piezoelectric materials
Creators: name: Le, Dai-Nam
name: Rodriguez-Lopez, Pablo
name: Woods, Lilia M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The strong coupling between electromagnetic field and lattice oscillation in piezoelectric materials gives rise to phonon polariton excitations. Such quasiparticles open up new directions in modulating the ubiquitous Casimir force. Here by utilizing the generalized Born-Huang hydrodynamics model, three types of phonons in piezoelectrics are studied: longitudinal optical phonon, transverse optical phonon and phonon polariton. The phonon-electromagnetic coupling results in a complex set of Fresnel reflection matrices which prevents the utilization of the standard Lifshitz approach for calculating Casimir forces in the imaginary frequency domain. Our calculations are based on an approach within real frequency and finite temperatures, through which various regimes of the Casimir interaction are examined. Our study shows that piezoelectrics emerge as a set of materials where this ubiquitous force can be controlled via phonon properties for the first time. The Casimir interaction appears as a suitable means to distinguish between different types of surface phonon polaritons associated with different structural piezoelectric polytypes.
description: 8 pages, 4 figures, supplementary information with 10 pages, 4 figures; submitted
KNOWLEDGE MANAGEMENT OF LOCAL WISDOM: CLOTH WEAVING OF SURAT THANI PROVINCE
Creators: name: Ninthana Iamsaard
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: Knowledge Management;Local Wisdom;Cloth Weaving;Surat Thani Province

description: วารสารปัญญาภิวัฒน์, 14, 3, 89-105
Protomagnetar and black hole formation in high-mass stars
Creators: name: Obergaulinger, Martin
name: Aloy, Miguel-Ángel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using axisymmetric simulations coupling special relativistic MHD, an approximate post-Newtonian gravitational potential and two-moment neutrino transport, we show different paths for the formation of either protomagnetars or stellar mass black holes. The fraction of prototypical stellar cores which should result in collapsars depends on a combination of several factors, among which the structure of the progenitor star and the profile of specific angular momentum are probably the foremost. Along with the implosion of the stellar core, we also obtain supernova-like explosions driven by neutrino heating and hydrodynamic instabilities or by magneto-rotational effects in cores of high-mass stars. In the latter case, highly collimated, mildly relativistic outflows are generated. We find that after a rather long post-collapse phase (lasting >~ 1 sec) black holes may form in cases both of successful and failed supernovalike explosions. A basic trend is that cores with a specific angular momentum smaller than that obtained by standard, one-dimensional stellar evolution calculations form black holes (and eventually collapsars). Complementary, protomagnetars result from stellar cores with the standard distribution of specific angular momentum obtained from prototypical stellar evolution calculations including magnetic torques and moderate to large mass loss rates.
description: Monthly Notices of the Royal Astronomical Society Letters. 5 pagges, 4 figures
Non-equilibrium transitions in multiscale systems with a bifurcating slow manifold
Creators: name: Grafke, Tobias
name: Vanden-Eijnden, Eric
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Noise-induced transitions between metastable fixed points in systems evolving on multiple time scales are analyzed in situations where the time scale separation gives rise to a slow manifold with bifurcation. This analysis is performed within the realm of large deviation theory. It is shown that these non-equilibrium transitions make use of a reaction channel created by the bifurcation structure of the slow manifold, leading to vastly increased transition rates. Several examples are used to illustrate these findings, including an insect outbreak model, a system modeling phase separation in the presence of evaporation, and a system modeling transitions in active matter self-assembly. The last example involves a spatially extended system modeled by a stochastic partial differential equation.
Rapid and Precise Determination of Zero-Field Splittings by Terahertz Time-Domain Electron Paramagnetic Resonance Spectroscopy
Creators: name: Lu, Jian
name: Ozel, I. Ozge
name: Belvin, Carina
name: Li, Xian
name: Skorupskii, Grigorii
name: Sun, Lei
name: Ofori-Okai, Benjamin K.
name: Dincă, Mircea
name: Gedik, Nuh
name: Nelson, Keith A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Zero-field splitting (ZFS) parameters are fundamentally tied to the geometries of metal ion complexes. Despite their critical importance for understanding the magnetism and spectroscopy of metal complexes, they are not routinely available through general laboratory-based techniques, and are often inferred from magnetism data. Here we demonstrate a simple tabletop experimental approach that enables direct and reliable determination of ZFS parameters in the terahertz (THz) regime. We report time-domain measurements of electron paramagnetic resonance (EPR) signals associated with THz-frequency ZFSs in molecular complexes containing high-spin transition-metal ions. We measure the temporal profiles of the free-induction decays of spin resonances in the complexes at zero and nonzero external magnetic fields, and we derive the EPR spectra via numerical Fourier transformation of the time-domain signals. In most cases, absolute values of the ZFS parameters are extracted from the measured zero-field EPR frequencies, and the signs can be determined by zero-field measurements at two different temperatures. Field-dependent EPR measurements further allow refined determination of the ZFS parameters and access to the g-factor. The results show good agreement with those obtained by other methods. The simplicity of the method portends wide applicability in chemistry, biology and material science.
description: 36 pages, 30 figures, 1 table
โมเดลการวัดประสิทธิภาพโซ่อุปทานด้านการดูแลสุขภาพด้วยเทคนิคของโมเดลสมการโครงสร้าง
Creators: name: ปัญญา สำราญหันต์
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: ประสิทธิภาพ
โซ่อุปทาน
การดูแลสุขภาพ

description: วารสารปัญญาภิวัฒน์, 14, 3, 106-120
Well-tempered n-plet dark matter
Creators: name: Bharucha, A.
name: Brümmer, F.
name: Ruffault, R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study simple effective models of fermionic WIMP dark matter, where the dark matter candidate is a mixture of a Standard Model singlet and an n-plet of SU(2) with n >= 3, stabilized by a discrete symmetry. The dark matter mass is assumed to be around the electroweak scale, and the mixing is generated by higher-dimensional operators, with a cutoff scale > 1 TeV. For appropriate values of the mass parameters and the mixing we find that the observed dark matter relic density can be generated by coannihilation. Direct detection experiments have already excluded large parts of the parameter space, and the next-generation experiments will further constrain these models.
description: 25 pages, 7 figures; v2: references and plots updated, minor corrections, conclusions unchanged
สมรรถนะโลจิสติกส์ กลยุทธ์การจัดการโลจิสติกส์ และประสิทธิภาพโลจิสติกส์ ที่มีต่อผลการดำเนินงานโลจิสติกส์ของอุตสาหกรรมผู้ผลิตชิ้นส่วนยานยนต์ในประเทศไทย
Creators: name: ณัชภัค สถิตย์ธรรม
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: สมรรถนะโลจิสติกส์
กลยุทธ์การจัดการโลจิสติกส์
ประสิทธิภาพโลจิสติกส์
ผลการดำเนินงานโลจิสติกส์
อุตสาหกรรมผู้ผลิตชิ้นส่วนยานยนต์ประเทศไทย

description: วารสารปัญญาภิวัฒน์, 14, 3, 121-136
Supernovae and their host galaxies - V. The vertical distribution of supernovae in disc galaxies
Creators: name: Hakobyan, A. A.
name: Barkhudaryan, L. V.
name: Karapetyan, A. G.
name: Mamon, G. A.
name: Kunth, D.
name: Adibekyan, V.
name: Aramyan, L. S.
name: Petrosian, A. R.
name: Turatto, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present an analysis of the height distributions of the different types of supernovae (SNe) from the plane of their host galaxies. We use a well-defined sample of 102 nearby SNe appeared inside high-inclined (i > 85 deg), morphologically non-disturbed S0-Sd host galaxies from the Sloan Digital Sky Survey. For the first time, we show that in all the subsamples of spirals, the vertical distribution of core-collapse (CC) SNe is about twice closer to the plane of host disc than the distribution of SNe Ia. In Sb-Sc hosts, the exponential scale height of CC SNe is consistent with those of the younger stellar population in the Milky Way (MW) thin disc, while the scale height of SNe Ia is consistent with those of the old population in the MW thick disc. We show that the ratio of scale lengths to scale heights of the distribution of CC SNe is consistent with those of the resolved young stars with ages from ~ 10 Myr up to ~ 100 Myr in nearby edge-on galaxies and the unresolved stellar population of extragalactic thin discs. The corresponding ratio for SNe Ia is consistent with the same ratios of the two populations of resolved stars with ages from a few 100 Myr up to a few Gyr and from a few Gyr up to ~ 10 Gyr, as well as with the unresolved population of the thick disc. These results can be explained considering the age-scale height relation of the distribution of stellar population and the mean age difference between Type Ia and CC SNe progenitors.
description: 11 pages, 6 figures, 6 tables, accepted for publication in MNRAS
How Anomalous Resistivity Accelerates Magnetic Reconnection
Creators: name: Che, H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Space Physics (physics.space-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Whether turbulence induced anomalous resistivity (AR) can facilitate a fast magnetic reconnection in collisionless plasma is a subject of active debate for decades. Recent space observations suggest that the reconnection rate can be higher than the Hall-reconnection rate and turbulent dissipation is required. In this paper, using particle-in-cell simulations, we present a case study of how AR produced by Buneman instability accelerates magnetic reconnection. We first show that the AR/drag produced by Buneman instability in a thin electron current layer 1) can dissipate magnetic energy stored in the current layer through dissipation of the kinetic energy of electron beams; 2) The inhomogeneous drag caused by wave couplings spontaneously breaks the magnetic field lines and causes impulsive fast non-Hall magnetic reconnection on electron-scales with a mean rate reaching 0.6 $V_A$. We then show that a Buneman instability driven by intense electron beams around the x-point in a 3D magnetic reconnection significantly enhances the dissipation of the magnetic energy. Electron-scale magnetic reconnections driven by the inhomogeneous drag around the x-line enhances the reconnection electric field and the in-plane perpendicular magnetic field. About 40\% of the released magnetic energy is converted into the electron thermal energy by AR while 50\% is converted into the kinetic energy of the electron beams through the acceleration by the reconnection electric field. The enhanced magnetic energy dissipation is balanced by a net Poynting flux in-flow. About 10\% of the released magnetic energy is brought out by an enhanced Poynting flux out-flow. These results suggest that AR with sufficient intensity and electron-scale inhomogeneity can significantly accelerate magnetic reconnection.
description: Physics of Plasma accepted
การปรับปรุงสินค้าคงคลังโดยประยุกต์ใช้การจำแนกประเภทกลุ่มสินค้าและแบบจำลอง ปริมาณการสั่งซื้อแยกตามลักษณะอุปสงค์ กรณีศึกษาในการผลิตอุปกรณ์อิเล็กทรอนิกส
Creators: name: ศศิธร ทองประไพ
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: การจัดกลุ่มด้วยระบบเอบีซี
การจัดการสินค้าคงคลัง
การสั่งซื้อแบบประหยัด
การสั่งซื้อตามความต้องการในแต่ละช่วงเวลา

description: วารสารปัญญาภิวัฒน์, 14, 3, 137-151
Properties of interstellar wind leading to shape morphology of the dust surrounding HD 61005
Creators: name: Pastor, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A structure formed by dust particles ejected from the debris ring around HD 61005 is observed in the scattered light. The main aim here is to constrain interstellar wind parameters that lead to shape morphology in the vicinity of HD 61005 using currently available observational data for the debris ring. Equation of motion of 2 $\times$ 10$^5$ dust particles ejected from the debris ring under the action of the electromagnetic radiation, stellar wind, and interstellar wind is solved. A two-dimensional (2D) grid is placed in a given direction for accumulation of the light scattered on the dust particles in order to determine the shape morphology. The interaction of the interstellar wind and the stellar wind is considered. Groups of unknown properties of the interstellar wind that create the observed morphology are determined. A relation between number densities of gas components in the interstellar wind and its relative velocity is found. Variations of the shape morphology caused by the interaction with the interstellar clouds of various temperatures are studied. When the interstellar wind velocity is tilted from debris ring axis a simple relation between the properties of the interstellar wind and an angle between the line of sight and the interstellar wind velocity exists. Dust particles that are most significantly influenced by stellar radiation move on the boundary of observed structure. Observed structure at HD 61005 can be explained as a result of dust particles moving under the action of the interstellar wind. Required number densities or velocities of the interstellar wind are much higher than that of the interstellar wind entering the Solar system.
description: 11 pages, 7 figures, accepted to A&A
การวิเคราะห์รูปแบบการนิเทศการสอนแบบหลากหลายวิธีการที่ส่งผลต่อความสำเร็จตามมาตรฐานหลักสูตรของโรงเรียนนานาชาติหลักสูตร International Baccalaureateระดับชั้น Diploma Programme ในประเทศไทย
Creators: name: ณัฐฐิรา นันทศิริรัตน์
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: รูปแบบการนิเทศการสอน
มาตรฐานหลักสูตร
หลักสูตร IBDP

description: วารสารปัญญาภิวัฒน์, 14, 3, 152-165
Local segregation versus irradiation effects in high-entropy alloys: Steady-state conditions in a driven system
Creators: name: Koch, Leonie
name: Granberg, Fredric
name: Brink, Tobias
name: Utt, Daniel
name: Albe, Karsten
name: Djurabekova, Flyura
name: Nordlund, Kai
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study order transitions and defect formation in a model high-entropy alloy (CuNiCoFe) under ion irradiation by means of molecular dynamics simulations. Using a hybrid Monte-Carlo/molecular dynamics scheme a model alloy is generated which is thermodynamically stabilized by configurational entropy at elevated temperatures, but partly decomposes at lower temperatures by copper precipation. Both the high-entropy and the multiphase sample are then subjected to simulated particle irradiation. The damage accumulation is analyzed and compared to an elemental Ni reference system. The results reveal that the high-entropy alloy---independent of the initial configuration---installs a certain fraction of short-range order even under particle irradiation. Moreover, the results provide evidence that defect accumulation is reduced in the high-entropy alloy. This is because the reduced mobility of point defects leads to a steady state of defect creation and annihilation. The lattice defects generated by irradiation are shown to act as sinks for Cu segregation.
description: 29 pages, 20 figures
Study of Vertical Magnetic Field in Face-on Galaxies using Faraday Tomography
Creators: name: Ideguchi, Shinsuke
name: Tashiro, Yuichi
name: Akahori, Takuya
name: Takahashi, Keitaro
name: Ryu, Dongsu
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Faraday tomography allows astronomers to probe the distribution of magnetic field along the line of sight (LOS), but that can be achieved only after Faraday spectrum is interpreted. However, the interpretation is not straightforward, mainly because Faraday spectrum is complicated due to turbulent magnetic field; it ruins the one-to-one relation between the Faraday depth and the physical depth, and appears as many small-scale features in Faraday spectrum. In this paper, employing "simple toy models" for the magnetic field, we describe numerically as well as analytically the characteristic properties of Faraday spectrum. We show that Faraday spectrum along "multiple loss" can be used to extract the global properties of magnetic field. Specifically, considering face-on spiral galaxies and modeling turbulent magnetic field as a random field with single coherence length, we numerically calculate Faraday spectrum along a number of LOSs and its shape-characterizing parameters, that is, the moments. When multiple LOSs cover a region of $\gtrsim (10\ {\rm coherence\ length)^2}$, the shape of Faraday spectrum becomes smooth and the shape-characterizing parameters are well specified. With the Faraday spectrum constructed as a sum of Gaussian functions with different means and variances, we analytically show that the parameters are expressed in terms of the regular and turbulent components of LOS magnetic field and the coherence length. We also consider the turbulent magnetic field modeled with power-law spectrum, and study how the magnetic field is revealed in Faraday spectrum. Our work suggests a way toward obtaining the information of magnetic field from Faraday tomography study.
description: To appear in ApJ
โมเดลเชิงสาเหตุของโครงสร้างองค์กร ภาวะผู้นําของผู้บริหาร ผ่านบรรยากาศองค์กรและทีมงานที่มี ประสิทธิภาพที่ส่งผลต่อโรงเรียนนวัตกรรมของโรงเรียนมัธยมศึกษาขนาดใหญ่ สังกัดสํานักงานคณะกรรมการการศึกษาขั้นพื้นฐาน
Creators: name: พันธกานต์ ดวงงา
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: โรงเรียนนวัตกรรม
โครงสร้างองค์กร
ภาวะผู้นําของผู้บริหาร
บรรยากาศองค์กร
ทีมงานที่มีประสิทธิภาพ

description: วารสารปัญญาภิวัฒน์, 14, 3, 166-177
Prospects for indirect dark matter searches with MeV photons
Creators: name: Bartels, Richard
name: Gaggero, Daniele
name: Weniger, Christoph
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Over the past decade, extensive studies have been undertaken to search for photon signals from dark matter annihilation or decay for dark matter particle masses above $\sim1$ GeV. However, due to the lacking sensitivity of current experiments at MeV-GeV energies, sometimes dubbed the 'MeV gap', dark matter models with MeV to sub-GeV particle masses have received little attention so far. Various proposed MeV missions (like, e.g., e-ASTROGAM or AMEGO) are aimed at closing this gap in the mid- or long-term future. This, and the absence of clear dark matter signals in the GeV-TeV range, makes it relevant to carefully reconsider the expected experimental instrumental sensitivities in this mass range. The most common two-body annihilation channels for sub-GeV dark matter are to neutrinos, electrons, pions or directly to photons. Among these, only the electron channel has been extensively studied, and almost exclusively in the context of the 511 keV line. In this work, we study the prospects for detecting MeV dark matter annihilation in general in future MeV missions, using e-ASTROGAM as reference, and focusing on dark matter masses in the range 1 MeV-3 GeV. In the case of leptonic annihilation, we emphasise the importance of the often overlooked bremsstrahlung and in-flight annihilation spectral features, which in many cases provide the dominant gamma-ray signal in this regime.
description: 20 pages, 5 figures, 1 table + references + appendix. V2: Matches version published in JCAP
ภาวะผู้นำดิจิทัลของผู้บริหารสถานศึกษาที่ส่งผลต่อประสิทธิผลการปฏิบัติงานของครูในโรงเรียนประถมศึกษา สังกัดสำนักงานเขตพื้นที่การศึกษาประถมศึกษาชัยภูมิ เขต 2
Creators: name: นภัสรัญช์ สุขเสนา
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: ภาวะผู้นำดิจิทัล
ประสิทธิผลการปฏิบัติงานของครู
โรงเรียนประถมศึกษา

description: วารสารปัญญาภิวัฒน์, 14, 3, 178-191
Random Scalar Fields and Hyperuniformity
Creators: name: Ma, Zheng
name: Torquato, Salvatore
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Disordered many-particle hyperuniform systems are exotic amorphous states of matter that lie between crystals and liquids. Hyperuniform systems have attracted recent attention because they are endowed with novel transport and optical properties. Recently, the hyperuniformity concept has been generalized to characterize scalar fields, two-phase media and random vector fields. In this paper, we devise methods to explicitly construct hyperuniform scalar fields. We investigate explicitly spatial patterns generated from Gaussian random fields, which have been used to model the microwave background radiation and heterogeneous materials, the Cahn-Hilliard equation for spinodal decomposition, and Swift-Hohenberg equations that have been used to model emergent pattern formation, including Rayleigh-B{\' e}nard convection. We show that the Gaussian random scalar fields can be constructed to be hyperuniform. We also numerically study the time evolution of spinodal decomposition patterns and demonstrate that these patterns are hyperuniform in the scaling regime. Moreover, we find that labyrinth-like patterns generated by the Swift-Hohenberg equation are effectively hyperuniform. We show that thresholding a hyperuniform Gaussian random field to produce a two-phase random medium tends to destroy the hyperuniformity of the progenitor scalar field. We then propose guidelines to achieve effectively hyperuniform two-phase media derived from thresholded non-Gaussian fields. Our investigation paves the way for new research directions to characterize the large-structure spatial patterns that arise in physics, chemistry, biology and ecology. Moreover, our theoretical results are expected to guide experimentalists to synthesize new classes of hyperuniform materials with novel physical properties via coarsening processes and using state-of-the-art techniques, such as stereolithography and 3D printing.
description: 16 pages, 18 figures
การดำเนินงานของโค้ชที่มีคุณภาพในโครงการพัฒนาครูและโรงเรียน เพื่อยกระดับคุณภาพการศึกษาอย่างต่อเนื่อง
Creators: name: พัชราภา ตันติชูเวช
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: โค้ช
การดำเนินงานของโค้ช
โครงการพัฒนาครูและโรงเรียนเพื่อยกระดับคุณภาพการศึกษาอย่างต่อเนื่อง

description: วารสารปัญญาภิวัฒน์, 14, 3, 192-205
Cutoff for Ramanujan graphs via degree inflation
Creators: name: Hermon, Jonathan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60B10, 60J10, 05C12, 05C81

description: Recently Lubetzky and Peres showed that simple random walks on a sequence of $d$-regular Ramanujan graphs $G_n=(V_n,E_n)$ of increasing sizes exhibit cutoff in total variation around the diameter lower bound $\frac{d}{d-2}\log_{d-1}|V_n| $. We provide a different argument under the assumption that for some $r(n) \gg 1$ the maximal number of simple cycles in a ball of radius $r(n)$ in $G_n$ is uniformly bounded in $n$.
description: 11 pages
การพัฒนาผลสัมฤทธิ์ของนักเรียนโดยใช้กระบวนการวิจัยเป็นฐานสําหรับจัดการเรียนการสอนประเภทวิชาอุตสาหกรรม สํานักงานคณะกรรมการการอาชีวศึกษา
Creators: name: พัชรินทร์ เฉลยไกร
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: ผลสัมฤทธิ์ทางการเรียน
การเรียนรู้โดยใช้กระบวนการวิจัยเป็นฐาน
ประเภทวิชาอุตสาหกรรม

description: วารสารปัญญาภิวัฒน์, 14, 3, 206-219
THE RELATIONSHIPS OF MOTIVATION FACTORS AND TECHNOLOGY USERS' ACCEPTANCE WITH ONLINE LEARNING EFFICIENCY DURING THE COVID-19 PANDEMIC SITUATION
Creators: name: Wachiranun Pum
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: Motivation;Technology User Acceptance;Online Learning

description: วารสารปัญญาภิวัฒน์, 14, 3, 220-231
Robo-GS: A Physics Consistent Spatial-Temporal Model for Robotic Arm with Hybrid Representation
Creators: name: Lou, Haozhe
name: Liu, Yurong
name: Pan, Yike
name: Geng, Yiran
name: Chen, Jianteng
name: Ma, Wenlong
name: Li, Chenglong
name: Wang, Lin
name: Feng, Hengzhen
name: Shi, Lu
name: Luo, Liyi
name: Shi, Yongliang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Real2Sim2Real plays a critical role in robotic arm control and reinforcement learning, yet bridging this gap remains a significant challenge due to the complex physical properties of robots and the objects they manipulate. Existing methods lack a comprehensive solution to accurately reconstruct real-world objects with spatial representations and their associated physics attributes.
 We propose a Real2Sim pipeline with a hybrid representation model that integrates mesh geometry, 3D Gaussian kernels, and physics attributes to enhance the digital asset representation of robotic arms.
 This hybrid representation is implemented through a Gaussian-Mesh-Pixel binding technique, which establishes an isomorphic mapping between mesh vertices and Gaussian models. This enables a fully differentiable rendering pipeline that can be optimized through numerical solvers, achieves high-fidelity rendering via Gaussian Splatting, and facilitates physically plausible simulation of the robotic arm's interaction with its environment using mesh-based methods.
 The code,full presentation and datasets will be made publicly available at our website https://robostudioapp.com
การพัฒนารูปแบบการอบรมโดยใช้ชุมชนเรียนรู้ทางวิชาชีพเพื่อส่งเสริมการจัดการเรียนรู้แบบลงมือกระทำสำหรับครูปฐมวัย
Creators: name: วิไลวรรณ กลิ่นถาวร
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: รูปแบบการอบรม
ชุมชนเรียนรู้ทางวิชาชีพ
การจัดการเรียนรู้แบบลงมือกระทำ

description: วารสารปัญญาภิวัฒน์, 14, 3, 232-247
Instanton Tunneling for De Sitter Space with Real Projective Spatial Sections
Creators: name: Ong, Yen Chin
name: Yeom, Dong-han
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The physics of tunneling from one spacetime into another is often understood in terms of instantons. For some instantons, it was recently shown in the literature that there are two complementary "interpretations" for their analytic continuations. Dubbed "something-to-something" and "nothing-to-something" interpretations, respectively, the former involves situation in which the initial and final hypersurfaces are connected by a Euclidean manifold, whereas the initial and final hypersurfaces in the latter case are not connected in such a way. We consider a de Sitter space with real projective space $\mathbb{R}\text{P}^3$ spatial sections, as was originally understood by de Sitter himself. This original version of de Sitter space has several advantages over the usual de Sitter space with $\text{S}^3$ spatial sections. In particular, the interpretation of the de Sitter entropy as entanglement entropy is much more natural. We discuss the subtleties involved in the tunneling of such a de Sitter space.
description: 10 pages, 11 figures, slightly elaborated version accepted by JCAP
ALMA Observations of Gas-Rich Galaxies in z~1.6 Galaxy Clusters: Evidence for Higher Gas Fractions in High-Density Environments
Creators: name: Noble, A. G.
name: McDonald, M.
name: Muzzin, A.
name: Nantais, J.
name: Rudnick, G.
name: van Kampen, E.
name: Webb, T. M. A.
name: Wilson, G.
name: Yee, H. K. C.
name: Boone, K.
name: Cooper, M. C.
name: DeGroot, A.
name: Delahaye, A.
name: Demarco, R.
name: Foltz, R.
name: Hayden, B.
name: Lidman, C.
name: Manilla-Robles, A.
name: Perlmutter, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present ALMA CO (2-1) detections in 11 gas-rich cluster galaxies at z~1.6, constituting the largest sample of molecular gas measurements in z>1.5 clusters to date. The observations span three galaxy clusters, derived from the Spitzer Adaptation of the Red-sequence Cluster Survey. We augment the >5sigma detections of the CO (2-1) fluxes with multi-band photometry, yielding stellar masses and infrared-derived star formation rates, to place some of the first constraints on molecular gas properties in z~1.6 cluster environments. We measure sizable gas reservoirs of 0.5-2x10^11 solar masses in these objects, with high gas fractions and long depletion timescales, averaging 62% and 1.4 Gyr, respectively. We compare our cluster galaxies to the scaling relations of the coeval field, in the context of how gas fractions and depletion timescales vary with respect to the star-forming main sequence. We find that our cluster galaxies lie systematically off the field scaling relations at z=1.6 toward enhanced gas fractions, at a level of ~4sigma, but have consistent depletion timescales. Exploiting CO detections in lower-redshift clusters from the literature, we investigate the evolution of the gas fraction in cluster galaxies, finding it to mimic the strong rise with redshift in the field. We emphasize the utility of detecting abundant gas-rich galaxies in high-redshift clusters, deeming them as crucial laboratories for future statistical studies.
description: 8 pages, 3 figures, published in ApJ Letters; updated to match published version
The Future of RICH Detectors through the Light of the LHCb RICH
Creators: name: D'Ambrosio, C.
name: Cardinale, R.
name: Easo, S.
name: Petrolini, A.
name: Ullaland, O.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The limitations in performance of the present RICH system in the LHCb experiment are given by the natural chromatic dispersion of the gaseous Cherenkov radiator, the aberrations of the optical system and the pixel size of the photon detectors. Moreover, the overall PID performance can be affected by high detector occupancy as the pattern recognition becomes more difficult with high particle multiplicities. This paper shows a way to improve performance by systematically addressing each of the previously mentioned limitations. These ideas are applied in the present and future upgrade phases of the LHCb experiment. Although applied to specific circumstances, they are used as a paradigm on what is achievable in the development and realisation of high precision RICH detectors.
ความต้องการของผู้ปกครองสำหรับโปรแกรมเสริมพิเศษของผู้เรียนเจเนอเรชันอัลฟา: โรงเรียนเอกชนในพื้นที่ศูนย์กลางทางเศรษฐกิจภาคใต้ตอนล่างของไทย
Creators: name: อนุสรา สุวรรณวงศ์
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: ความต้องการของผู้ปกครอง
โปรแกรมเสริมพิเศษ
ผู้เรียนเจเนอเรชันอัลฟา
โรงเรียนเอกชน
พื้นที่เศรษฐกิจภาคใต้ตอนล่างของไทย

description: วารสารปัญญาภิวัฒน์, 14, 3, 248-261
Understanding long-range opposite charge repulsion in multivalent salt solutions
Creators: name: Agrawal, Nikhil R.
name: Carrao, Carlo
name: Wang, Rui
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The electrostatic correlations between ions profoundly influence the structure and forces within electrical double layers. Here, we apply the modified Gaussian Renormalized Fluctuation theory to investigate the counter-intuitive phenomenon of repulsion between two oppositely charged surfaces and discuss its relationship with overcharging. By accurately accounting for the effect of spatially varying ion-ion correlations, we capture these repulsive forces for divalent, trivalent as well as tetravalent ions, in quantitative agreement with reported simulation results. We show that the opposite-charge repulsion is long-ranged with an effective length scale of a few nanometers. The strength of opposite-charge repulsion increases monotonically with the multivalent salt concentration, in stark contrast with the non-monotonic salt concentration dependence of other ion correlation-driven phenomena, such as overcharging and like-charge attraction. We also elucidate that the origin of the opposite-charge repulsion is the large amount of ions attracted to the double layer as a result of ion-ion correlations, leading to higher osmotic pressure and stronger screening of the electrostatic attraction, which results in an overall repulsive force between two oppositely charged surfaces. Furthermore, we demonstrate that there is no causal relationship between opposite-charge repulsion and the overcharging of the surface. Opposite-charge repulsion is accompanied by overcharging at large separation distances, but can also occur in normal double layers without overcharging at intermediate separation distances.
การสังเคราะห์งานวิจัยที่เกี่ยวกับเด็กและเยาวชนในประเทศไทย
Creators: name: สมพร โกมารทัต
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: การสังเคราะห์งานวิจัย
เด็ก
เยาวชน

description: วารสารปัญญาภิวัฒน์, 14, 3, 262-275
การศึกษากลุ่มเสี่ยงและปัจจัยปกป้องพฤติกรรมการติดสมาร์ทโฟนของนักศึกษาระดับปริญญาตรี สถาบันระดับอุดมศึกษาเอกชนในเขตกรุงเทพมหานครและปริมณฑล
Creators: name: พัชราภา อินทพรต
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: กลุ่มเสี่ยง
ปัจจัยปกป้อง
พฤติกรรมการติดสมาร์ทโฟน

description: วารสารปัญญาภิวัฒน์, 14, 3, 276-292
รูปแบบกิจกรรมความรับผิดชอบสังคมกับความยั่งยืนของธุรกิจ กรณีศึกษา บมจ. ทรู คอร์ปอเรชั่น
Creators: name: อุไรรัตน์ อภิวัฒนกุล
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: รูปแบบกิจกรรมความรับผิดชอบสังคม
ความยั่งยืนของธุรกิจ
แพลตฟอร์มแห่งความรับผิดชอบทางสังคม

description: วารสารปัญญาภิวัฒน์, 14, 3, 293-306
ประสิทธิผลการโฆษณาบนกูเกิล เสิร์ช (Google Search Ads) เฟซบุ๊ก (Facebook Ads) และกูเกิล ดิสเพลย์ เน็ตเวิร์ก (Google Display Network) ต่อการสร้างยอดขายประกันอุบัติเหตุบนช่องทางออนไลน์ กรณีศึกษา ไทยสมุทรประกันชีวิต
Creators: name: ชลลัดดา เจียรธีรวิทย์
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: โฆษณาบนกูเกิลเสิร์ช
โฆษณาบนเฟซบุ๊ก
กูเกิล
ดิสเพลย์
เน็ตเวิร์ก
การสื่อสารการตลาดดิจิทัล

description: วารสารปัญญาภิวัฒน์, 14, 3, 307-322
การพัฒนาสื่อประชาสัมพันธ์เพื่อสร้างการรับรู้โดยกระบวนการวิจัยเชิงปฏิบัติการแบบมีส่วนร่วม โครงการหนองคายโมเดล
Creators: name: ทรัพย์ อมรภิญโญ
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: การวิจัยเชิงปฏิบัติการแบบมีส่วนร่วม
การประชาสัมพันธ์
สื่อประชาสัมพันธ

description: วารสารปัญญาภิวัฒน์, 14, 3, 323-337
แนวความคิดในการช่วยเหลือลูกหนี้บุคคลธรรมดาผ่านกระบวนการล้มละลาย
Creators: name: พัชรพงศ์ สอนใจ
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: แนวความคิดการเริ่มต้นใหม่
การล้มละลายโดยสมัครใจ
ลูกหนี้ผู้สุจริตแต่โชคร้าย

description: วารสารปัญญาภิวัฒน์, 14, 3, 338-351
การสร้างความทันสมัยในวิถีญี่ปุ่น "ก่อนเข้าสู่สมัยเมจิ"
Creators: name: นงลักษณ์ ลิ้มศิริ
Publisher: name: สถาบันการจัดการปัญญาภิวัฒน์
Year: 2022
Subjects: การสร้างความทันสมัย
อักษรญี่ปุ่น
ลัทธิขงจื๊อ
ศาสนาพุทธ
ดัตช์ศึกษา

description: วารสารปัญญาภิวัฒน์, 14, 3, 352-367
Global Wilson-Fisher fixed points
Creators: name: Jüttner, Andreas
name: Litim, Daniel F.
name: Marchais, Edouard
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Wilson-Fisher fixed point with $O(N)$ universality in three dimensions is studied using the renormalisation group. It is shown how a combination of analytical and numerical techniques determine global fixed point solutions to leading order in the derivative expansion for real or purely imaginary fields with moderate numerical effort. Universal and non-universal quantitites such as scaling exponents and mass ratios are computed, for all $N$, together with local fixed point coordinates, radii of convergence, and parameters which control the asymptotic behaviour of the effective action. We also explain when and why finite-$N$ results do not converge pointwise towards the exact infinite-$N$ limit. In the regime of purely imaginary fields, a new link between singularities of fixed point effective actions and singularities of their counterparts by Polchinski are established. Implications for other theories are indicated.
description: 28 pages, 10 figures, v2: explanations and refs added, to appear (NPB)
Filmværkstedets database
Creators: Det Danske Filminstitut, Filmværkstedet
Publisher: name: Rigsarkivet
Year: 2023

description: Sagsstyringsværktøj med henblik på at registrere ansøgninger, bevillinger og danne skabelon for korrespondance som f.eks afslag, ønske om supplerende materiale og bevillingstilsagn.
Desuden en omfattende interessentdatabase som udover ansøgere indeholder alle, der har være i brevkontakt med Filmværkstedet fra ind- og udland samt andre branchekontakter, Filmværkstedet måtte ønske at kontakte.
Electronic origin of melting T-P curves of alkali metals with negative slope and minimum
Creators: name: Degtyareva, Valentina F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Group I elements - alkali metals Li, Na, K, Rb and Cs - are examples of simple metals with one s electron in the valence band. Under pressure these elements display unusually complex structural behaviour transforming from close-packed to low symmetry open structures. Unexpectedly complex form was found for melting curves of alkalis under compression with initial increasing in accordance to Lindemann criterion and further decreasing to very low melting point. To understand complex and low symmetry structures in compressed alkalis a transformation of the electron energy levels was suggested which involves an overlap between the valence band and outer core electrons. Within the model of the Fermi sphere - Brillouin zone interaction one can understand the complex melting curve of alkalis.
description: 9 pages, 4 figures, The 54th European High Pressure Research Group (EHPRG) International Meeting on High Pressure Science and Technology 4 - 9 September 2016, Bayreuth/Germany, submitted to Cogent Physics