cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparative study of the catalytic growth of patterned carbon nanotube films
Creators: name: Klinke, Christian
name: Bonard, Jean-Marc
name: Kern, Klaus
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Three different catalysts (Fe, Ni, Co nitrates dissolved in ethanol) were patterned on a SiO2/Si substrate and multi-wall carbon nanotubes were grown by catalytic decomposition of acetylene. We compare the growth of the carbon nanostructures in the temperature range between 580C and 1000C. With our experimental set-up the catalyst solutions of cobalt and nickel were found to be less efficient than the one of iron. An optimal production of multi-wall nanotubes was observed at temperatures between 650C and 720C with the iron solution as catalyst. We found a tendency towards thicker structures with higher temperatures. Finally, we suggest a mechanism for the growth of these carbon structures.
description: 5 pages, 5 figures
Laser beam properties and microfluidic confinement control thermocavitation
Creators: name: Schoppink, Jelle J.
name: Alvarez-Chavez, Jose A.
name: Rivas, David Fernandez
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Thermocavitation, the creation of a vapor bubble by heating a liquid with a continuous-wave laser, has been studied for a wide range of applications. Examples include the development of an actuator for needle-free jet injectors, as the pumping mechanism in microfluidic channels and crystallization or nanoparticle synthesis. Optimal use in these applications require control over the dynamics of the laser-generated bubble through the laser power and beam radius. In contrast to pulsed lasers, for continuous-wave lasers the influence of the laser beam radius on the bubble characteristics is not fully understood. Here, we present a novel way to control the size of the beam from an optical fiber by changing the distance from the glass-liquid interface. We show that the increase in beam size results in a longer nucleation time. Numerical simulations of the experiment show that the maximum temperature at the moment of nucleation is 237$\pm$5°C and independent of laser parameters. Due to delayed nucleation for larger beam sizes, more energy is absorbed by the liquid at the nucleation instant. Consequently, a larger beam size results in a faster growing bubble, producing the same effect as reducing the laser power. We conclude that the total bubble energy only depends on the amount of absorbed optical energy and it is independent of the beam radius and laser power for any amount of absorbed energy. This effect contrasts with pulsed lasers, where an increase in beam radius results in a reduction of bubble energy. Our results are of relevance for the use of continuous-wave laser-actuated cavitation in needle-free jet injectors as well as other applications of thermocavitation in microfluidic confinement.
iGUT: Grand Unified Theory on Interval
Creators: name: Haba, Naoyuki
name: Sakamura, Yutaka
name: Yamashita, Toshifumi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate a construction of five-dimensional (5D) grand unified theories (GUTs) on an interval, which we call iGUTs. We analyze supersymmetric SO(10) iGUT as an example, where the gauge multiplet is spread over the 5D bulk. The SO(10) is directly reduced to the standard model gauge symmetry through the interval boundary conditions. Notice that this rank reduction is impossible in case of GUTs on orbifolds. Four scenarios are possible according to locations (bulk or brane) of Higgs and matter fields. We investigate the gauge-coupling unification, the proton decay, the SO(10) GUT features such as t-b-tau unification and so on in each scenario. We also comment on the flavor phenomenology.
description: 36 pages
Accuracy of the mean-field theory in describing ground-state properties of light nuclei
Creators: name: Rong, Yu-Ting
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The relativistic mean-field model, augmented with three types of center-of-mass corrections and two types of rotational corrections, is employed to investigate the ground-state properties of helium, beryllium, and carbon isotopes. The efficacy of the mean-field approach in describing the binding energies, quadrupole deformations, root-mean-square charge radii, root-mean-square matter radii, and neutron skins of these light nuclei is evaluated. By averaging the binding energies obtained from six selected effective interactions, a mass-dependent behavior of the mean-field approximation is elucidated. The findings from radii reveal that, unlike in heavy nuclei, the exchange terms of the center-of-mass correction play an indispensable role in accurately describing the radii of light nuclei. The mean-field approximation, when augmented with center-of-mass and rotational corrections, effectively reproduces the energies and radii of light nuclei. However, due to the absence of many-body correlations between valence neutrons, the mean-field approximation falls short in describing the deformations and shell evolutions of the helium and beryllium isotopic chains.
description: 14 pages, 6 figures
Quadratic estimators for CMB weak lensing
Creators: name: Maniyar, Abhishek S.
name: Ali-Haïmoud, Yacine
name: Carron, Julien
name: Lewis, Antony
name: Madhavacheril, Mathew S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In recent years, weak lensing of the cosmic microwave background (CMB) has emerged as a powerful tool to probe fundamental physics, such as neutrino masses, primordial non-Gaussianity, dark energy, and modified gravity. The prime target of CMB lensing surveys is the lensing potential, which is reconstructed from observed CMB temperature $T$ and polarization $E$ and $B$ fields. Until very recently, this reconstruction has been performed with quadratic estimators (QEs), which, although known to be suboptimal for high-sensitivity experiments, are numerically efficient, and useful to make forecasts and cross-check the results of more sophisticated likelihood-based methods. It is expected that ongoing and near-future CMB experiments such as AdvACT, SPT-3G and the Simons Observatory (SO), will also rely on QEs. Here, we review different QEs, and clarify their differences. In particular, we show that the Hu-Okamoto (HO02) estimator is not the absolute optimal lensing estimator that can be constructed out of quadratic combinations of $T, E$ and $B$ fields. Instead, we derive the global-minimum-variance (GMV) lensing quadratic estimator. Although this estimator can be found elsewhere in the literature, it was erroneously described as equivalent to the HO02 estimator, and has never been used in real data analyses. Here, we show explicitly that the HO02 estimator is suboptimal to the GMV estimator, with a reconstruction noise larger by up to $\sim 9\%$ for a SO-like experiment. We further show that the QE used in the Planck, and recent SPT lensing analysis are suboptimal to both the HO02 and GMV estimator, and would have a reconstruction noise up to $\sim 11\%$ larger than that of the GMV estimator for a SO-like experiment. In addition to clarifying differences between different QEs, this work should thus provide motivation to implement the GMV estimator in future lensing analyses relying on QEs.
description: Accepted for publication in PRD
Hoop Dreams Deferred: the WNBA, the NBA, and the Long-Standing Gender Inequality at the Game's Highest Level
Creators: name: N. Jeremi Duru
Publisher: name: Utah Law Review
Year: 2015

description: From the beginning, the WNBA—which was born of the NBA’s approval in the NBA’s cities with NBA teams’ colors and largely NBA-related names and which survived a challenge from the ABL by virtue of its NBA affiliation—has featured a more stringent age eligibility rule than the NBA. When taken together, the two rules create two different tracks—one for men and one for women—to be negotiated on route to a professional basketball career in the United States. This sort of dualtracking, in which one route presents advantages over the other, is unacceptable in a nation committed to gender equity, and it therefore requires Title VII scrutiny.  Although parent companies often are not held liable for their subsidiaries’ acts, both the integrated enterprise doctrine and the direct liability participation doctrine suggest the NBA could be held liable for the discrimination that flows from the divergent policies. And, therefore, whether the NBA is determined under Title VII analysis to be a third party employer or an employment agency, an aggrieved woman basketball player who is ruled ineligible under the WNBA’s age eligibility rule but who would be eligible, were she a man, under the NBA’s age eligibility rule, will have a potentially viable claim. As such, the NBA and WNBA would do well to revise their age eligibility policies such that men and women of the same age have the same access to employment in the NBA and WNBA, respectively.
Transport properties of nanosystems with conventional and unconventional charge density waves
Creators: name: Mierzejewski, Marcin
name: Maska, Maciej M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a systematic study of transport properties of nanosytems with charge density waves. We demonstrate, how the presence of density waves modifies the current-voltage characteristics. On the other hand hand, we show that the density waves themselves are strongly affected by the applied voltage. This self-consistent problem is solved within the formalism of the nonequilibrium Green functions. The conventional charge density waves occur only for specific, periodically distributed ranges of the voltage. Apart from the low voltage regime, they are incommensurate and the corresponding wave vectors decrease discontinuously when the voltage increases.
description: 7 pages, 7 figures, revtex
Childhood cancer in the offspring of male sawmill workers occupationally exposed to chlorophenate fungicides
Creators: name: Heacock, Helen Jane
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to determine whether paternal occupational exposure to chlorophenol fungicides, namely tetra- and pentachlorophenate, and their dioxin contaminants is associated with childhood cancer in the offspring of sawmill workers. The study was conducted using data from 23,829 British Columbian sawmill workers employed for at least one continuous year between 1950-1985 in eleven chlorophenate-using sawmills and to live births born at least one year after the initiation of employment in the period 1952 - 1988. Probabilistic linkage of the sawmill worker cohort to the provincial Division of Vital Statistics' marriage and birth files produced an offspring cohort of 19,674 children. The offspring cohort was then linked to the British Columbia Cancer Registry. All malignant cases less than twenty years of age and appearing in the cancer registry between 1969 - 1993 were included. Forty cases of cancer were identified during 259,919 person-years of followup; twenty-two cases among the girls and eighteen among the boys. Childhood cancer trends were assessed using both external and internal analyses. Standardized incidence ratios (SIRs) were calculated using the British Columbia population as a reference. Among girls, the SIR for all cancers was 1.22, (95% CI 0.76 - 1.84), for leukemia 1.00, (95% CI 0.32 - 2.33) and for brain cancer 2.02, (95% CI 0.74 - 4.40). Among boys, the SIR for all cancers was 0.89, (95% CI 0.53 - 1.41), for leukemia 0.95, (95% CI 0.35 - 2.08) and for brain cancer 0.77, (95% CI 0.16 - 2.25). A nested case-control analysis assessed the effects of paternal cumulative exposure and windows of exposure on risk of developing cancer in the offspring. Although the results produced slightly elevated dose-response relationships, most noticeably with brain neoplasms, none were statistically significant. Even though the study power was limited, the analyses provide little evidence to support a relationship between risk of childhood cancer and paternal occupational exposure to chlorophenate fungicides in BC sawmills.
Magnetic field symmetry of pump currents of adiabatically driven mesoscopic structures
Creators: name: Moskalets, M.
name: Buttiker, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We examine the scattering properties of a slowly and periodically driven mesoscopic sample using the Floquet function approach. One might expect that at sufficiently low driving frequencies it is only the frozen scattering matrix which is important. The frozen scattering matrix reflects the properties of the sample at a given instant of time. Indeed many aspects of adiabatic scattering can be described in terms of the frozen scattering matrix. However, we demonstrate that the Floquet scattering matrix, to first order in the driving frequency, is determined by an additional matrix which reflects the fact that the scatterer is time-dependent. This low frequency irreducible part of the Floquet matrix has symmetry properties with respect to time and/or a magnetic field direction reversal opposite to that of the frozen scattering matrix. We investigate the quantum rectification properties of a pump which additionally is subject to an external dc voltage. We split the dc current flowing through the pump into several parts with well defined properties with respect to a magnetic field and/or an applied voltage inversion.
description: 13 pages, 4 figures
Post-Newtonian Description of Quantum Systems in Gravitational Fields
Creators: name: Schwartz, Philip K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Atomic Physics (physics.atom-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 83C25, 81T20, 81V45, 37J39

description: This thesis deals with the systematic treatment of quantum-mechanical systems in post-Newtonian gravitational fields. Starting from clearly spelled-out assumptions, employing a framework of geometric background structures defining the notion of a post-Newtonian expansion, our systematic approach allows to properly derive the post-Newtonian coupling of quantum-mechanical systems to gravity based on first principles. This sets it apart from more heuristic approaches that are commonly employed, for example, in the description of quantum-optical experiments under gravity. Regarding single particles, we compare simple canonical quantisation of a free particle in curved spacetime to formal expansions of the minimally coupled Klein-Gordon equation, which may be motivated from QFT in curved spacetimes. Specifically, we develop a general WKB-like post-Newtonian expansion of the KG equation to arbitrary order in $c^{-1}$. Furthermore, for stationary spacetimes, we show that the Hamiltonians arising from expansions of the KG equation and from canonical quantisation agree up to linear order in particle momentum, independent of any expansion in $c^{-1}$. Concerning composite systems, we perform a fully detailed systematic derivation of the first order post-Newtonian quantum Hamiltonian describing the dynamics of an electromagnetically bound two-particle system situated in external electromagnetic and gravitational fields, the latter being described by the Eddington-Robertson PPN metric. In the last, independent part of the thesis, we prove two uniqueness results characterising the Newton--Wigner position observable for Poincaré-invariant classical Hamiltonian systems: one is a direct classical analogue of the quantum Newton--Wigner theorem, and the other clarifies the geometric interpretation of the Newton--Wigner position as `centre of spin', as proposed by Fleming in 1965.
description: Doctoral thesis. 145 pages (12 front matter + 113 main text + 20 back matter). Includes material from arXiv:1812.05181, arXiv:1908.06929, and arXiv:2004.09723. Includes an extended version of the results from arXiv:1908.06929. v2: included keywords (to match version that will be published)
Atmospheric carbon depletion as a tracer of water oceans and biomass on temperate terrestrial exoplanets
Creators: name: Triaud, Amaury H. M. J.
name: de Wit, Julien
name: Klein, Frieder
name: Turbet, Martin
name: Rackham, Benjamin V.
name: Niraula, Prajwal
name: Glidden, Ana
name: Jagoutz, Oliver E.
name: Pec, Matej
name: Petkowski, Janusz J.
name: Seager, Sara
name: Selsis, Franck
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The conventional observables to identify a habitable or inhabited environment in exoplanets, such as an ocean glint or abundant atmospheric O$_2$, will be challenging to detect with present or upcoming observatories. Here we suggest a new signature. A low carbon abundance in the atmosphere of a temperate rocky planet, relative to other planets of the same system, traces the presence of substantial amount of liquid water, plate tectonic and/or biomass. We show that JWST can already perform such a search in some selected systems like TRAPPIST-1 via the CO$_2$ band at $4.3\,\rm μm$, which falls in a spectral sweet spot where the overall noise budget and the effect of cloud/hazes are optimal. We propose a 3-step strategy for transiting exoplanets: 1) detection of an atmosphere around temperate terrestrial planets in $\sim 10$ transits for the most favorable systems, (2) assessment of atmospheric carbon depletion in $\sim 40$ transits, (3) measurements of O$_3$ abundance to disentangle between a water- vs biomass-supported carbon depletion in $\sim100$ transits. The concept of carbon depletion as a signature for habitability is also applicable for next-generation direct imaging telescopes.
description: 35 pages, 5 figures, "director's cut version of the paper"
การรับรู้การวัดผลการศึกษาของอาจารย์และนักศึกษาระดับปริญญาตรี สายสังคมศาสตร์และมนุษยศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Creators: name: ชญานิศ อภิบาลมงคล
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: การวัดผลทางการศึกษา, การรับรู้, อาจารย์, นักศึกษา, สายสังคมศาสตร์และมนุษยศาสตร์

description: วารสารธรรมศาสตร์, 38, 2, 81-100
DDI-Cross-Domain Integration (DDI-CDI): Current Status and Further Developments
Creators: name: Gregory, Arofan
Publisher: name: Zenodo
Year: 2023

description: This presentation will summarize the capabilities of the DDI Coss-Domain Interoperability specification, and describe how early imple,entations have used the standard, both on its own and in combination with other DDI specifications. The focus of the working group in the near- to mid-term will be described, as will prospects for adoption through various FAIR initiatives. The range of available tools for working with the specification will be covered, as well as expected and supported implementation approaches in RDF as well as XML, including alignment with non-DDI standards such as SKOS, Schema.org, and DCAT.
The orbit and stellar masses of the archetype colliding-wind binary WR 140
Creators: name: Thomas, Joshua D.
name: Richardson, Noel D.
name: Eldridge, J. J.
name: Schaefer, Gail H.
name: Monnier, John D.
name: Sana, Hugues
name: Moffat, Anthony F. J.
name: Williams, Peredur
name: Corcoran, Michael F.
name: Stevens, Ian R.
name: Weigelt, Gerd
name: Zainol, Farrah D.
name: Anugu, Narsireddy
name: Bouquin, Jean-Baptiste Le
name: Brummelaar, Theo ten
name: Campos, Fran
name: Couperus, Andrew
name: Davies, Claire L.
name: Ennis, Jacob
name: Eversberg, Thomas
name: Garde, Oliver
name: Gardner, Tyler
name: Fló, Joan Guarro
name: Kraus, Stefan
name: Labdon, Aaron
name: Lanthermann, Cyprien
name: Leadbeater, Robin
name: Lester, T.
name: Maki, Courtney
name: McBride, Brendan
name: Ozuyar, Dogus
name: Ribeiro, J.
name: Setterholm, Benjamin
name: Stober, Berthold
name: Wood, Mackenna
name: Zurmühl, Uwe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present updated orbital elements for the Wolf-Rayet (WR) binary WR\,140 (HD\,193793; WC7pd + O5.5fc). The new orbital elements were derived using previously published measurements along with {\color{black}160} new radial velocity measurements across the 2016 periastron passage of WR 140. Additionally, four new measurements of the orbital astrometry were collected with the CHARA Array. With these measurements, we derive stellar masses of $M_{\rm WR} = 10.31\pm0.45 M_\odot$ and $M_{\rm O} = 29.27\pm1.14 M_{\odot}$. We also include a discussion of the evolutionary history of this system from the Binary Population and Spectral Synthesis (BPASS) model grid to show that this WR star likely formed primarily through mass loss in the stellar winds, with only a moderate amount of mass lost or transferred through binary interactions.
description: 10 pages, 5 figures
Franz, Egon: Das Opfersein Christi und das Opfersein der Kirche
Creators: name: Richter, Manfred
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 40 Nr. 2 (1991): Ökumenische Rundschau, Band 40, Heft 2
การให้ความหมายต่อการวิ่งและแรงจูงใจในการเข้าร่วมงานวิ่ง:ศึกษาเฉพาะผู้ที่เคยเข้าร่วมงานวิ่ง
Creators: name: ณัชชา รัตนสัค
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: การวิ่ง, งานวิ่ง, มาราธอน, การให้ความหมาย, แรงจูงใจ

description: วารสารธรรมศาสตร์, 38, 2, 101-125
Atomistic analysis of Li migration in $\text{Li}_{1+x} \text{Al}_x \text{Ti}_{2-x} {(\text{P} \text{O}_4)}_3$ (LATP) solid electrolytes
Creators: name: Pfalzgraf, Daniel
name: Mutter, Daniel
name: Urban, Daniel F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examine the ionic migration of Li in LATP [$\text{Li}_{1+x} \text{Al}_x \text{Ti}_{2-x} {(\text{P} \text{O}_4)}_3$] solid electrolytes from an atomistic viewpoint by means of density functional theory calculations. We vary the Al content and investigate its effects on the crystal structure of LATP and on the migration energy landscape of interstitial Li ions. The energy profiles governing the Li diffusion are found to be systematically influenced by the position of Al ions in direct vicinity of the migration path, and we derive a simplified classification scheme of three universal energy profile shapes. The overall influence of the Al/Ti-ratio on the Li migration is analyzed by a separation into chemical and geometrical aspects. This work provides a solid basis for a resource-efficient computational examination of the ionic conductivity of Li in LATP with varying Al/Ti concentrations.
description: 18 pages, 5 figures
Destruction of formic acid by soft X-rays in star-forming regions
Creators: name: Boechat-Roberty, H. M.
name: Pilling, S.
name: Santos, A. C. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Formic acid is much more abundant in the solid state, both in interstellar ices and cometary ices, than in the interstellar gas (ice/gas ~ 10^{4}) and this point remains a puzzle. The goal of this work is to experimentally study ionization and photodissociation processes of HCOOH (formic acid), a glycine precursor molecule. The measurements were taken at the Brazilian Synchrotron Light Laboratory (LNLS), employing soft X-ray photons from toroidal grating monochromator TGM) beamline (200 - 310 eV). Mass spectra were obtained using photoelectron photoion coincidence (PEPICO) method. Kinetic energy distributions and abundances for each ionic fragment have been obtained from the analysis of the corresponding peak shapes in the mass spectra. Photoionization and photodissociation cross sections were also determined. Due to the large photodissociation cross section of HCOOH it is possible that in PDRs regions, just after molecules evaporation from the grain surface, formic acid molecules are almost totally destroyed by soft X-rays, justifying the observed low abundance of HCOOH in the gaseous phase. The preferential path for the glycine formation from formic acid may be through the ice phase reaction. Keywords: HCOOH; Photoionization; X-rays; Astrochemistry.
description: 9 pages, 7 figures, 2 tables. Accepted to be printed in A&A
Phase rigidity and avoided level crossings in the complex energy plane
Creators: name: Bulgakov, E. N.
name: Rotter, I.
name: Sadreev, A. F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the effective Hamiltonian of an open quantum system, its biorthogonal eigenfunctions $ϕ_λ$ and define the value $r_λ= (ϕ_λ|ϕ_λ)/$ that characterizes the phase rigidity of the eigenfunctions $ϕ_λ$. In the scenario with avoided level crossings, $r_λ$ varies between 1 and 0 due to the mutual influence of neighboring resonances. The variation of $r_λ$ may be considered as an internal property of an {\it open} quantum system. In the literature, the phase rigidity $ρ$ of the scattering wave function $Ψ^E_C$ is considered. Since $Ψ^E_C$ can be represented in the interior of the system by the $ϕ_λ$, the phase rigidity $ρ$ of the $Ψ^E_C$ is related to the $r_λ$ and therefore also to the mutual influence of neighboring resonances. As a consequence, the reduction of the phase rigidity $ρ$ to values smaller than 1 should be considered, at least partly, as an internal property of an open quantum system in the overlapping regime. The relation to measurable values such as the transmission through a quantum dot, follows from the fact that the transmission is, in any case, resonant with respect to the effective Hamiltonian. We illustrate the relation between phase rigidity $ρ$ and transmission numerically for small open cavities.
description: 6 pages, 3 figures
Prismatic dislocation- {11-21} twin interaction as a source of uncommon pyramidal-〈a〉 dislocation in HCP metals
Creators: name: Zhou, Shuo
name: Chen, Peng
name: Zhang, Xiaohan
name: Li, Bin
name: Wang, Hui-Yuan
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: The interaction between prismatic dislocations and a {112¯1} twin boundary is systematically investigated using atomistic simulations. Interestingly, when the slip plane is parallel to the plane of shear, the parent prismatic dislocation is transmuted into a prismatic dislocation in the twin while the Burgers vector remains unchanged. In contrast, when the prismatic slip plane is inclined with the plane of shear, the prismatic dislocation is transmuted into the uncommon pyramidal-⟨a⟩ dislocation on the {101¯1} plane. The energetics during twin-slip interactions are quantified by Nudged Elastic Band calculations. Our results provide a new understanding in terms of twin-slip interaction in HCP metals. We reveal a novel formation mechanism for the uncommon pyramidal-⟨a⟩ dislocation via twin-slip interactions and quantify the associated energy barrier, advancing our understanding of twin-slip interactions in HCP metals.
Optical STAR-RIS-Aided VLC Systems: RSMA Versus NOMA
Creators: name: Maraqa, Omar
name: Aboagye, Sylvester
name: Ngatched, Telex M. N.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A critical concern within the realm of visible light communications (VLC) pertains to enhancing system data rate, particularly in scenarios where the direct line-of-sight (LoS) connection is obstructed by obstacles. The deployment of meta-surface-based simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) has emerged to combat challenging LoS blockage scenarios and to provide 360 coverage in radio-frequency wireless systems. Recently, the concept of optical simultaneous transmission and reflection reconfigurable intelligent surface (OSTAR-RIS) has been promoted for VLC systems. This work is dedicated to studying the performance of OSTAR-RIS in detail and unveiling the VLC system performance gain under such technology. Specifically, we propose a novel multi-user indoor VLC system that is assisted by OSTAR-RIS. To improve the sum rate performance of the proposed system, both power-domain non-orthogonal multiple access (NOMA) and rate splitting multiple access (RSMA) are investigated in this work. To realize this, a sum rate maximization problem that jointly optimizes the roll and yaw angles of the reflector elements as well as the refractive index of the refractor elements in OSTAR-RIS is formulated, solved, and evaluated. The maximization problem takes into account practical considerations, such as the presence of non-users (i.e., blockers) and the orientation of the recipient's device. The sine-cosine meta-heuristic algorithm is employed to get the optimal solution of the formulated non-convex optimization problem. Moreover, the study delves into the sum energy efficiency optimization of the proposed system. Simulation results indicate that the proposed OSTAR-RIS RSMA-aided VLC system outperforms the OSTAR-RIS NOMA-based VLC system in terms of both the sum rate and the sum energy efficiency.
description: Accepted for publication in IEEE Open Journal of the Communications Society, Dec. 2023
Theoretical investigation of moiré patterns in quantum images
Creators: name: Almeida, M. P.
name: Ribeiro, P. H. Souto
name: Huguenin, J. A. O.
name: Khoury, A. Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Moiré patterns are produced when two periodic structures with different spatial frequencies are superposed. The transmission of the resulting structure gives rise to spatial beatings which are called moiré fringes. In classical optics, the interest in moiré fringes comes from the fact that the spatial beating given by the frequency difference gives information about details(high spatial frequency) of a given spatial structure. We show that moiré fringes can also arise in the spatial distribution of the coincidence count rate of twin photons from the parametric down-conversion, when spatial structures with different frequencies are placed in the path of each one of the twin beams. In other words,we demonstrate how moiré fringes can arise from quantum images.
Motility-Induced Clustering and Meso-Scale Turbulence in Active Polar Fluids
Creators: name: Worlitzer, Vasco M.
name: Ariel, Gil
name: Be'er, Avraham
name: Stark, Holger
name: Bär, Markus
name: Heidenreich, Sebastian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Meso-scale turbulence was originally observed experimentally in various suspensions of swimming bacteria, as well as in the collective motion of active colloids. The corresponding large-scale dynamical patterns were reproduced in a simple model of a polar fluid, assuming a constant density of active particles. Recent, more detailed experimental studies revealed additional interesting aspects, such as anomalous velocity statistics and clustering phenomena. Those phenomena cannot be explained by currently available models for active polar fluids. Herein, we extend the continuum model suggested by Dunkel et al. to include density variations and a feedback between the local density and self-propulsion speed of the active particles. If the velocity decreases strong enough with the density, a linear stability analysis of the resulting model shows that, in addition to the short-wavelength instability of the original model, a long-wavelength instability occurs. This is typically observed for high densities of polar active particles and is analogous to the well-known phenomenon of motility-induced phase separation (MIPS) in scalar active matter. We determine a simple phase diagram indicating the linear instabilities and perform systematic numerical simulations for the various regions in the corresponding parameter space. The interplay between the well understood short-range instability and the long-range instability leads to interesting dynamics and novel phenomena concerning nucleation and coarsening processes. Our simulation results display a rich variety of novel patterns, including phase separation into domains with dynamically changing irregularly shaped boundaries. Anomalous velocity statistics are observed in all phases where the system segregates into regions of high and low densities. This offers a simple explanation for their occurrence in recent experiments with bacterial suspensions.
Sustainability Orientation and Political Firm Environmental Performance
Creators: name: Rabia Najaf
Publisher: name: Zenodo
Year: 2024
Subjects: Political Connections, Environmental Performance, Green Subsidies, Miscellaneous, Chemical Industry

description: In this study, our main contribution is that political connections are considered the main channel to increase environmental performance. With the support of resource dependency theory, we argue that these connections are external and internal resources of the firms.This happen because the government can easily play a role in sustainable development, they can get green subsides to impact the firm's profitability positively However, based on the previous literatures, we explored that the impact of political connection on environmental performance in developing and under-developing countries. This study is useful for the private politically connected firms because politically exposed person provide numerous benefits. However, political connections are prevalence in chemical, infrastructure, investment, and miscellaneous industry. To sum up, all evidence proved that political connections have a significant positive impact on environmental performance.
High-throughput synthesis and strengthening behavior of Fex(CoCrNi)100-x medium-entropy alloys via laser-direct energy deposition
Creators: name: Liao, Yu
name: Song, Yisi
name: Zheng, Mengyao
name: Zhang, Hao
name: Sun, Beier
name: Niu, Yunjiao
name: Li, Chuanwei
name: Gu, Jianfeng
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Compositionally graded Fex(CoCrNi)100-x medium-entropy alloys (MEAs) were fabricated via laser-direct energy deposition. The effects of Fe content and heat treatment on microstructure, mechanical properties, and strengthening behavior were investigated. Increasing Fe content led to a phase transition from FCC to BCC, enabling varied combinations of hardness and ductility. Quenching improved the hardness due to the enhanced martensitic matrix strengthening, while tempering promoted the formation of Cr-rich nano-clusters, further improving the hardness. Our study provides valuable insights into the design of low-cost and high-performance ferrous MEAs (Fe-MEAs) and offers a reproducible framework for developing other high-property alloy systems.
Meßner, Reinhard: Die Meßreform Martin Luthers und die Eucharistie der alten Kirche
Creators: name: Schäfer, Rolf
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 40 Nr. 2 (1991): Ökumenische Rundschau, Band 40, Heft 2
Multimessenger signals from black hole-neutron star mergers without significant tidal disruption
Creators: name: East, William E.
name: Lehner, Luis
name: Liebling, Steven L.
name: Palenzuela, Carlos
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the multimessenger signals from the merger of a black hole with a magnetized neutron star using resistive magnetohydrodynamics simulations coupled to full general relativity. We focus on a case with a 5:1 mass ratio, where only a small amount of the neutron star matter remains post-merger, but we nevertheless find that significant electromagnetic radiation can be powered by the interaction of the neutron star's magnetosphere with the black hole. In the lead-up to merger, strong twisting of magnetic field lines from the inspiral leads to plasmoid emission and results in a luminosity in excess of that expected from unipolar induction. We find that the strongest emission occurs shortly after merger during a transitory period in which magnetic loops form and escape the central region. The remaining magnetic field collimates around the spin axis of the remnant black hole before dissipating, an indication that, in more favorable scenarios (higher black hole spin/lower mass ratio) with larger accretion disks, a jet would form.
description: 9 pages, 5 figures; revised to match ApJL version
Ergodicity breaking in one-dimensional reaction-diffusion systems
Creators: name: Rákos, A.
name: Paessens, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate one-dimensional driven diffusive systems where particles may also be created and annihilated in the bulk with sufficiently small rate. In an open geometry, i.e., coupled to particle reservoirs at the two ends, these systems can exhibit ergodicity breaking in the thermodynamic limit. The triggering mechanism is the random motion of a shock in an effective potential. Based on this physical picture we provide a simple condition for the existence of a non-ergodic phase in the phase diagram of such systems. In the thermodynamic limit this phase exhibits two or more stationary states. However, for finite systems transitions between these states are possible. It is shown that the mean lifetime of such a metastable state is exponentially large in system-size. As an example the ASEP with the A0A--AAA reaction kinetics is analyzed in detail. We present a detailed discussion of the phase diagram of this particular model which indeed exhibits a phase with broken ergodicity. We measure the lifetime of the metastable states with a Monte Carlo simulation in order to confirm our analytical findings.
description: 25 pages, 14 figures; minor alterations, typos corrected
A low cost, flexible atmospheric pressure plasma jet device with good antimicrobial efficiency
Creators: name: Nascimento, Fellype do
name: Sampaio, Aline da Graça
name: Milhan, Noala Vicensoto Moreira
name: Gontijo, Aline Vidal Lacerda
name: Mattern, Philipp
name: Gerling, Torsten
name: Robert, Eric
name: Koga-Ito, Cristiane Yumi
name: Kostov, Konstantin Georgiev
Publisher: name: arXiv
Year: 2023
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Plasma sources suitable to generate low temperature plasmas has been fundamental for the advances in plasma medicine. In this research field, plasma sources must comply with stringent conditions for clinical applications. The main requirement to be met is the patient and operator's safety and the ethical requirement of effectivity, which encompasses the electrical regulations, potential device toxicity and effectiveness in relation to the desired treatment. All these issues are addressed by the German pre-standard DIN SPEC 91315:2014-06 (DINSpec), which deals with the safety limits, risk assessment and biological efficacy of plasma sources aimed for medical applications. In this work, a low cost, user-friendly and flexible atmospheric pressure plasma jet (APPJ) device was characterized following the DINSpec guidelines. The device, which is still under development, proved to be safe for medical applications. It is capable of producing an APPJ with low patient leakage current and UV emission, gas temperature lower than 40 °C, production of harmful gases within the safety limits and low cytotoxicity. The most differentiating feature is that the device presented good antimicrobial efficacy even operating at frequency of the order of just a few hundred Hz, a value below that of most devices reported in the literature.
ปัจจัยที่มีผลต่อการควบคุมภายในที่ดีในหน่วยงานของรัฐ: กรณีศึกษาสำนักงานคณะกรรมการพัฒนาการเศรษฐกิจและสังคมแห่งชาติ
Creators: name: จุฑามน สิทธิผลวนิชกุล
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: การควบคุมภายใน, ประสิทธิผลการควบคุมภายใน, หน่วยงานของรัฐ

description: วารสารธรรมศาสตร์, 38, 2, 126-148
Motorstütze | für Seat
Creators: name: RS-WERKZEUGE
Publisher: name: Zenodo
Year: 2021
Subjects: teilewaschmaschine
teilewäscher
reinigung pinsel

description: Aus der Verbindung des leidenschaftlichen Auto-Schrauber Tino Schlosser und der gelernten Einzelhandelskauffrau mit Passion Bettina Rasche entstand im Jahr 2007 der Online Shop RS-Werkzeuge, der Shop für Werkzeug mit Druckluft & Spezialwerkzeug. Besuchen Sie unseren Online-Shop für weitere Details: https://rs-werkzeuge.de
Climbing LP Algorithms
Creators: name: Levin, Leonid A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.1; G.1.3
subject: 90C05, 90C25

description: NP (search) problems allow easy correctness tests for solutions. Climbing algorithms allow also easy assessment of how close to yielding the correct answer is the configuration at any stage of their run. This offers a great flexibility, as how sensible is any deviation from the standard procedures can be instantly assessed. An example is the Dual Matrix Algorithm (DMA) for linear programming, variations of which were considered by A.Y. Levin in 1965 and by Yamnitsky and myself in 1982. It has little sensitivity to numerical errors and to the number of inequalities. It offers substantial flexibility and, thus, potential for further developments.
description: 2 pages. Significant additions
Constraining the age of young stellar clusters via the amplitude of photometric variability
Creators: name: Messina, Sergio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Determination of stellar age is a crucial task in astrophysics research. Different methods are nowadays used either model dependent or based on calibrated empirical relations. The most reliable results are generally obtained when different methods are used in complementary way. We propose a new method for the age determination of young stellar associations and open clusters (ages < 125 Myr), which can allow to further constrain the age when used together with other methods. We explore the amplitude of the photometric variability in bins of color and rotation period of five young associations and clusters spanning an interval of ages from 1-3 Myr to 625 Myr (Taurus, rho Ophiuchi, Upper Scorpius, Pleiades, and Praesepe), which all have high-quality time-series photometry from Kepler K2 campaigns. In the low-mass regime, we find that stars with similar color and rotation period but different ages exhibit different amplitudes of their photometric variability, with younger stars showing a larger photometric variability than older stars. The decline of photometric variability amplitude versus age in stars with similar color and rotation period can be in principle calibrated and be adopted as an additional empirical relation to constrain the age of young associations and open clusters, provided that time-series photometry is available for their low-mass members.
description: 6 pages, 4 figures, 1 table, accepted by Astronomy & Astrophysics on 25/11/2020
Fantasy America : the United States as seen through French and Italian eyes
Creators: name: Harris, Mark
Publisher: name: University of British Columbia
Year: 2009

description: For the past two decades, scholars have been reassessing the ways in which Western writers and intellectuals have traditionally misrepresented the non-white world for their own ideological purposes. Orientalism, Edward Said's ground-breaking study of the ways in which Europeans projected their own social problems onto the nations of the Near East in an attempt to take their minds off. the same phenomena as they occurred closer to home, was largely responsible for this shift in emphasis. Fantasy America: The United States as Seen Through French and Italian Eyes is an exploration of a parallel occurrence that could easily be dubbed "Occidentalism." More specifically, it is a study of the ways in which French and Italian writers and filmmakers have sought to situate the New World within an Old World context. "Among the (More Advanced) Barbarians" (a.k.a. Chapter One) examines the continuities and discontinuities of French travel writing in America from the days of the Jesuits to the heyday of the existentialists. Certain motifs and idees fixes—the uniqueness of American racism; the "magic" of New York—are first identified and then examined. "A Meeting of the Mafias" (Chapter Two) is more cosmopolitan in scope, tracing the ways in which French, American, and Italian crime fiction have historically influenced each other, as well as the relationship of the policier to differing notions of the nation-state. "The Ruins of Rome" (Chapter Three) demonstrates how Italian intellectuals have looked to the United States for new. World Solutions to Old World problems. This chapter encompasses two major sub-themes: the positive possibilities for Italy of "Fordismo" (the American industrial model) and American literature (which was believed to promote political, as well as cultural, liberty). "Lurching Towards the Millennium" picks up the threads of the first three chapters and places them in the contemporary context of globalization, a process which threatens to replace the hegemony of the nation state with the omnipresence of corporate power. The cultural model of Quebec is introduced at this point as a New World/Old World paradigm that embodies the chimerical contradictions of a globe on the brink of a new millennium.
Polarized polariton condensates and coupled XY models
Creators: name: Keeling, Jonathan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Microcavity polaritons, which at low temperatures can condense to a macroscopic coherent state, possess a polarization degree of freedom. This article discusses the phase diagram of such a system, showing the boundaries between differently polarized condensates. The Bogoliubov approximation is shown to have problems in describing the transition between differently polarized phases; the Hartree-Fock-Popov approximation performs better, and compares well to exact results that can be used in the limit where the left- and right-circular polarization states decouple. The effect on the phase boundary of various symmetry breaking terms present in real microcavities are also considered.
description: 6 pages, 3 figures. Extended version