cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exploring the Correlation between Solvent Diffusion and Creep Resistance of Mg-Ga HCP Alloys from High Throughput Liquid-Solid Diffusion Couple
Creators: name: Wang, Jingya
name: Xu, Guanglong
name: Zeng, Xiaoqin
name: Llorca, Javier
name: Cui, Yuwen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The liquid-solid diffusion couple technique, supported by phenomenological analysis and nano-indentation tests, is proposed on account of the relatively low melting points of Mg to explore the diffusion mobility and creep deformation. The potential of this strategy is demonstrated in Mg-Ga hcp alloys where Ga solute (i.e. impurity) and Mg solvent diffusions in hcp Mg-Ga alloys were both unveiled. It was followed by mapping the compressive creep behavior via nanoindentation along the composition arrays within the same Mg-Ga couple sample. The compressive creep resistance of Mg-Ga hcp alloys increased with the Ga content, and this enhancement was similar to the one found in Mg-Zn alloys and superior to the one reported in Mg-Al alloys though Al is a slower impurity diffuser in hcp-Mg than Zn and Ga. Thereby, the solvent diffusion and its variation with the composition, rather than the solute diffusion, was suggested to govern the creep properties at high temperatures and low stresses.
ON-OFF Privacy Against Correlation Over Time
Creators: name: Ye, Fangwei
name: Naim, Carolina
name: Rouayheb, Salim El
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the problem of ON-OFF privacy in which a user is interested in the latest message generated by one of n sources available at a server. The user has the choice to turn privacy ON or OFF depending on whether he wants to hide his interest at the time or not. The challenge of allowing the privacy to be toggled between ON and OFF is that the user's online behavior is correlated over time. Therefore, the user cannot simply ignore the privacy requirement when privacy is OFF. We represent the user's correlated requests by an n-state Markov chain. Our goal is to design ON-OFF privacy schemes with optimal download rate that ensure privacy for past and future requests. We devise a polynomial-time algorithm to construct an ON-OFF privacy scheme. Moreover, we present an upper bound on the achievable rate. We show that the proposed scheme is optimal and the upper bound is tight for some special families of Markov chains. We also give an implicit characterization of the optimal achievable rate as a linear programming (LP).
การพัฒนาและศึกษาผลการใช้ชุดกิจกรรมส่งเสริมการอ่านทางวิทยาศาสตร์เรื่อง การดำรงชีวิตของสัตว์ กลุ่มสาระการเรียนรู้วิทยาศาสตร์สำหรับนักเรียนชั้นประถมศึกษาปีที่ 6 โรงเรียนโคกก่องวิทยาสำนักงานเขตพื้นที่การศึกษากาฬสินธุ์ เขต 1
Creators: name: สงกรานต์ มณีโคตร
name: เนตรชนก จันทร์สว่าง
name: สุรทิน นาราภิรมย์
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2011
Subjects: ชุดกิจกรรมส่งเสริมการอ่าน, วิทยาศาสตร์, การดำรงชีวิตของสัตว์, ความสามารถในการอ่าน

description: 1, 5, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
The Long-Term Variability of the X-Ray Sources in NGC 6946 and NGC 4485/4490
Creators: name: Fridriksson, Joel K.
name: Homan, Jeroen
name: Lewin, Walter H. G.
name: Kong, Albert K. H.
name: Pooley, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze data from five Chandra observations of the spiral galaxy NGC 6946 and from three Chandra observations of the irregular/spiral interacting galaxy pair NGC 4485/4490, with an emphasis on investigating the long-term variability exhibited by the source populations. We detect 90 point sources coincident with NGC 6946 down to luminosities of a few times 10^36 erg/s, and 38 sources coincident with NGC 4485/90 down to a luminosity of ~1x10^37 erg/s. Twenty-five (15) sources in NGC 6946 (NGC 4485/90) exhibit long-term (i.e., weeks to years) variability in luminosity; 11 (4) are transient candidates. The single ultraluminous X-ray source (ULX) in NGC 6946 and all but one of the eight ULXs in NGC 4485/90 exhibit long-term flux variability. Two of the ULXs in NGC 4485/90 have not been identified before as ultraluminous sources. The widespread variability in both systems is indicative of the populations being dominated by X-ray binaries, and this is supported by the X-ray colors of the sources. The distribution of colors among the sources indicates a large fraction of high-mass X-ray binaries in both systems. The shapes of the X-ray luminosity functions of the galaxies do not change significantly between observations and can be described by power laws with cumulative slopes ~0.6-0.7 (NGC 6946) and ~0.4 (NGC 4485/90).
description: 26 pages, 9 figures, 15 tables - to appear in the August 2008 issue of ApJS - new version corrects a few typos
title: Die montierte Stadt. Das Berlin der Weimarer Republik in zwei Graphic Novels der 2000er Jahre
Creators: name: Kaschuba, Nora
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2021

description: Vom Königreich Preußen bis zur Bundesrepublik Deutschland: Berlin war in seiner wechselhaften Geschichte die Hauptstadt unterschiedlichster Staatsformen und Gesellschaften. Mittlerweile ist es auch zur „Hauptstadt des Comics“ geworden, zu einem Zentrum, aber vor allem auch Objekt von Comicproduktionen. 2012 zählte der Journalist Lars von Törne fast 100 Comic-Hefte und Graphic Novels, die Berlin zum Schauplatz haben. Seitdem hat sich ihre Zahl stetig vergrößert, und die Vielfalt an historischen sowie gegenwärtigen Themen und künstlerischen Stilen ist immens. Im Folgenden soll anhand von zwei Graphic Novels, die beide in der Zeit der Weimarer Republik angesiedelt sind, besprochen werden, wie diese stadtgeschichtliche Epoche eine grafisch erzählende Verarbeitung findet: Jason Lutes’ „Klassiker“ „Berlin – Steinerne Stadt“ (erster Teil der ab 2003 in der deutschen Übersetzung von Heinrich Anders beim Carlsen-Verlag erschienenen Trilogie) und der deutlich weniger bekannte Band „Wolkenbügel – Berlin im Rausch“ von Sebastian Strombach (erschienen 2018 im Jovis Verlag).
Relativistic spin hydrodynamics with torsion and linear response theory for spin relaxation
Creators: name: Hongo, Masaru
name: Huang, Xu-Guang
name: Kaminski, Matthias
name: Stephanov, Mikhail
name: Yee, Ho-Ung
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the second law of local thermodynamics and the first-order Palatini formalism, we formulate relativistic spin hydrodynamics for quantum field theories with Dirac fermions, such as QED and QCD, in a torsionful curved background. We work in a regime where spin density, which is assumed to relax much slower than other non-hydrodynamic modes, is treated as an independent degree of freedom in an extended hydrodynamic description. Spin hydrodynamics in our approach contains only three non-hydrodynamic modes corresponding to a spin vector, whose relaxation time is controlled by a new transport coefficient: the rotational viscosity. We study linear response theory and observe an interesting mode mixing phenomenon between the transverse shear and the spin density modes. We propose several field-theoretical ways to compute the spin relaxation time and the rotational viscosity, via the Green-Kubo formula based on retarded correlation functions.
description: 35 pages, 2 figures, appendix added, published version
title: Tuna-Steak und Co. Methylquecksilber im Fisch
Creators: name: Kandarr, Jana
name: Wittmann, Florian
Publisher: name: Deutsches GeoForschungsZentrum GFZ
Year: 2019

description: Sushi erfreut sich immer größerer Beliebtheit. Weltweit nimmt der Appetit auf Fisch zu, in den letzten 50 Jahren hat sich dessen Verzehr verdoppelt. Nicht unwesentlich ist daher die Schadstoff-Belastung von Speisefischen für den Menschen. Insbesondere Raubfische weisen hohe Konzentrationen an Methylquecksilber auf.
The Top-Dog Index: A New Measurement for the Demand Consistency of the Size Distribution in Pre-Pack Orders for a Fashion Discounter with Many Small Branches
Creators: name: Kurz, Sascha
name: Rambau, Joerg
name: Schluechtermann, Joerg
name: Wolf, Rainer
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90B05, 90B90

description: We propose the new Top-Dog-Index, a measure for the branch-dependent historic deviation of the supply data of apparel sizes from the sales data of a fashion discounter. A common approach is to estimate demand for sizes directly from the sales data. This approach may yield information for the demand for sizes if aggregated over all branches and products. However, as we will show in a real-world business case, this direct approach is in general not capable to provide information about each branch's individual demand for sizes: the supply per branch is so small that either the number of sales is statistically too small for a good estimate (early measurement) or there will be too much unsatisfied demand neglected in the sales data (late measurement). Moreover, in our real-world data we could not verify any of the demand distribution assumptions suggested in the literature. Our approach cannot estimate the demand for sizes directly. It can, however, individually measure for each branch the scarcest and the amplest sizes, aggregated over all products. This measurement can iteratively be used to adapt the size distributions in the pre-pack orders for the future. A real-world blind study shows the potential of this distribution free heuristic optimization approach: The gross yield measured in percent of gross value was almost one percentage point higher in the test-group branches than in the control-group branches.
description: 22 pages, 15 figures
La enseñanza de habilidades de escritura en el nivel medio superior a través del fanfiction. Algunos resultados
Creators: name: Terriquez Pérez, Diana Laura
name: Galindo Acuña, Azul
name: Rodríguez Palacios, Gael Alejandro
name: Letechipia Alvarado, Laura Valeria
Publisher: name: Redoma
Year: 2024

description: Redoma, Vol. 4 Núm. 14 (2024): Redoma, octubre-diciembre 2024
Positive effects of the migration from Ka-band satellite to 4G solution for the communication needs of a scattered set of 1 MW solar farms in Poland: a user’s experience
Creators: name: Tébar, Enrique
name: Bak, Witold
name: Hurtado, Luis
name: Kulesza, Zbigniew
name: Napieralski, Andrzej
Publisher: name: figshare
Year: 2021
Subjects: subject: 100509 Video Communications
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 100508 Satellite Communications
subject: 100504 Data Communications
subject: 100503 Computer Communications Networks
subject: 100599 Communications Technologies not elsewhere classified
subject: 100501 Antennas and Propagation

description: This paper contains a concise overview of the deployment of scattered solar power plants in Poland, mainly from the perspective of their communication networks, and how the recent development of the Polish 4G networks has a very positive impact for the performance of the whole monitoring system (production control and video-surveillance), with a special emphasis on video-analytics, due to its higher bandwidth demand. All the information will be shown from the point of view of the solar photovoltaics developer I+D Energías, and therefore it constitutes a real user’s experience.
Phantom crossing, equation-of-state singularities, and local gravity constraints in f(R) models
Creators: name: Amendola, Luca
name: Tsujikawa, Shinji
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We identify the class of f(R) dark energy models which have a viable cosmology, i.e. a matter dominated epoch followed by a late-time acceleration. The deviation from a LambdaCDM model (f=R-Lambda) is quantified by the function m=Rf_{,RR}/f_{,R}. The matter epoch corresponds to m(r=-1) simeq +0 (where r=-Rf_{,R}/f) while the accelerated attractor exists in the region 01, i.e. within reach of observations. If we add local gravity constraints, the bound on m becomes very stringent, with m several orders of magnitude smaller than unity in the region whose density is much larger than the present cosmological density. The representative models that satisfy both cosmological and local gravity constraints take the asymptotic form m(r)=C(-r-1)^p with p>1 as r approaches -1.
description: 8 pages, 3 figures, version to appear in Physics Letters B
The Lipschitz bounded approximation property for operator ideals
Creators: name: Choi, Geunsu
name: Jung, Mingu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this article, we introduce the Lipschitz bounded approximation property for operator ideals. With this notion, we extend the original work done by Godefroy and Kalton and give some partial answers on the equivalence between the bounded approximation property and the Lipschitz bounded approximation property based on an arbitrary operator ideal. Furthermore, we investigate the three space problems on the preceding bounded approximation properties.
description: 13 pages
Derivation of a Fundamental Diagram for Urban Traffic Flow
Creators: name: Helbing, Dirk
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Despite the importance of urban traffic flows, there are only a few theoretical approaches to determine fundamental relationships between macroscopic traffic variables such as the traffic density, the utilization, the average velocity, and the travel time. In the past, empirical measurements have primarily been described by fit curves. Here, we derive expected fundamental relationships from a model of traffic flows at intersections, which suggest that the recently measured fundamental diagrams for urban flows can be systematically understood. In particular, this allows one to derive the average travel time and the average vehicle speed as a function of the utilization and/or the average number of delayed vehicles.
description: For related work, see http://www.helbing.org
GRB070610 : A Curious Galactic Transient
Creators: name: Kasliwal, M. M.
name: Cenko, S. B.
name: Kulkarni, S. R.
name: Cameron, P. B.
name: Nakar, E.
name: Ofek, E. O.
name: Rau, A.
name: Soderberg, A. M.
name: Campana, S.
name: Bloom, J. S.
name: Perley, D. A.
name: Pollack, L.
name: Barthelmy, S.
name: Cummings, J.
name: Gehrels, N.
name: Krimm, H. A.
name: Markwardt, C. B.
name: Sato, G.
name: Chandra, P.
name: Frail, D.
name: Fox, D. B.
name: Price, P.
name: Berger, E.
name: Grebenev, S. A.
name: Krivonos, R. A.
name: Sunyaev, R. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: GRB 070610 is a typical high-energy event with a duration of 5s.Yet within the burst localization we detect a highly unusual X-ray and optical transient, SwiftJ195509.6+261406. We see high amplitude X-ray and optical variability on very short time scales even at late times. Using near-infrared imaging assisted by a laser guide star and adaptive optics, we identified the counterpart of SwiftJ195509.6+261406. Late-time optical and near-infrared imaging constrain the spectral type of the counterpart to be fainter than a K-dwarf assuming it is of Galactic origin. It is possible that GRB 070610 and Swift J195509.6+261406 are unrelated sources. However, the absence of a typical X-ray afterglow from GRB 070610 in conjunction with the spatial and temporal coincidence of the two motivate us to suggest that the sources are related. The closest (imperfect) analog to Swift J195509.6+261406 is V4641 Sgr, an unusual black hole binary. We suggest that Swift J195509.6+261406 along with V4641 Sgr define a sub-class of stellar black hole binaries -- the fast X-ray novae. We further suggest that fast X-ray novae are associated with bursts of gamma-rays. If so, GRB 070610 defines a new class of celestial gamma-ray bursts and these bursts dominate the long-duration GRB demographics
description: Substantially revised since additional late-time observations indicate the optical/IR counterpart to GRB070610 is very faint. Precise astrometry indicates that the original spectrum was of a very nearby brighter star but not the counterpart to GRB070610. Full resolution figures at http://www.astro.caltech.edu/~mansi/g070610.ps
Declaration of Intention of Wilhelm Groegsler
Creators: name: United States. Bureau Of Naturalization
Publisher: name: No Publisher Supplied
Year: 1909

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by: Wilhelm Groegsler  Applicant age:26Occupation: Cabinet MakerCountry of Origin: GermanyDate of Birth: April 3, 1882Sailed to the US aboard the vessel: Bulgaria   Declaration submitted and sworn: 15 March 1909Residing in: Atlantic City, NJ.
Icosahedral quasicrystal-enhanced nucleation in Al alloys fabricated by selective laser melting
Creators: name: Galera-Rueda, C.
name: Montero-Sistiaga, M. L.
name: Vanmeensel, K.
name: Godino-Martínez, M.
name: LLorca, J.
name: Pérez-Prado, M. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Selective laser melting (SLM) is rapidly evolving to become a mainstream technology. However, the fundamental mechanisms of solidification and microstructure development inherent to the non-equilibrium conditions of this additive manufacturing method, which differ largely from those typical of conventional processing techniques, remain widely unknown. In this work, an in-depth characterization of the microstructure of Al7075 SLM processed samples, built from powder mixtures containing ZrH2 microparticles, demonstrates the occurrence of icosahedral quasicrystal-enhanced nucleation during laser fabrication. This solidification mechanism, only observed to date in cast Al-Zn and yellow gold alloys containing minute additions of Cr (Kurtuldu et al., 2013) or Ti (Chen et al. 2018), and Ir (Kurtuldu et al., 2014), is evidenced by the presence of an abnormally high fraction of twin boundaries and of five-fold orientation symmetry between twinned nearest neighbors lying within a matrix of equiaxed, randomly textured, ultrafine grains. This research attests to the wide range of possibilities offered by additive manufacturing methods for the investigation of novel physical metallurgy phenomena as well as for the design of advanced metals.
Declaration of Intention of Louis Schaeffer
Creators: name: United States. Bureau Of Naturalization
Publisher: name: No Publisher Supplied
Year: 1909

description: Declaration of Intention to become a citizen of the United States, as filled out and signed by: Louis Schaeffer  Applicant age: 31Occupation: ChefCountry of Origin: GermanyDate of Birth: August 11, 1878Sailed to the US aboard the vessel: Unknown   Declaration submitted and sworn:5 October 1909Residing in: Atlantic City, NJ.
High-temperature spin relaxation process in Dy$_2$Ti$_2$O$_7$ probed by $^{47}$Ti-NQR
Creators: name: Kitagawa, K.
name: Higashinaka, R.
name: Ishida, K.
name: Maeno, Y.
name: Takigawa, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed nuclear quadrupole resonance (NQR) experiments on $^{47}$Ti nuclei in Dy$_2$Ti$_2$O$_7$ in the temperature range 70 -- 300 K in order to investigate the dynamics of $4f$ electrons with strong Ising anisotropy. A significant change of the NQR frequency with temperature was attributed to the variation of the quadrupole moment of Dy $4f$ electrons. A quantitative account was given by the mean field analysis of the quadrupole-quadrupole (Q-Q) interaction in the presence of the crystalline-electric-field splitting. The magnitude and the temperature dependence of the nuclear spin-lattice relaxation rate was analyzed, including both the spin-spin and the Q-Q interactions. The results indicate that these two types of interaction contribute almost equally to the fluctuation of Dy magnetic moments.
description: 8 pages, 6 figures, 1 table, accepted for publication in Phys. Rev. B
$CP$ asymmetry in the angular distributions of $τ\to K_Sπν_τ$ decays -- II: general effective field theory analysis
Creators: name: Chen, Feng-Zhi
name: Li, Xin-Qiang
name: Peng, Shi-Can
name: Yang, Ya-Dong
name: Zhang, Hong-Hao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We proceed to study the $CP$ asymmetry in the angular distributions of $τ\to K_Sπν_τ$ decays within a general effective field theory framework including four-fermion operators up to dimension-six. It is found that, besides the commonly considered scalar-vector interference, the tensor-scalar interference can also produce a non-zero $CP$ asymmetry in the angular distributions. Bounds on the effective couplings of the non-standard scalar and tensor interactions are obtained under the combined constraints from the measured $CP$ asymmetries and the branching ratio of $τ^-\to K_Sπ^-ν_τ$ decay, with $\mathrm{Im}[\hatε_S]=-0.008\pm0.027$ and $\mathrm{Im}[\hatε_T]=0.03\pm0.12$, at the scale $μ_τ=2~\mathrm{GeV}$ in the $\mathrm{\overline{MS}}$ scheme. Using the best-fit values, we also find that the distributions of the $CP$ asymmetries can deviate significantly from the SM expectation in almost the whole $Kπ$ invariant-mass region. Nevertheless, the current bounds are still plagued by large experimental uncertainties, but will be improved with more precise measurements from Belle II as well as the proposed Tera-Z and STCF facilities. Assuming further that the non-standard scalar and tensor interactions originate from a weakly-coupled heavy new physics well above the electroweak scale, the $SU(2)_L$ invariance of the resulting SMEFT Lagrangian would indicate that very strong limits on $\mathrm{Im}[\hatε_S]$ and $\mathrm{Im}[\hatε_T]$ could also be obtained from the neutron electric dipole moment and the $D^0-\bar{D}^0$ mixing. With the bounds from these processes taken into account, it is then found that, unless there exist extraordinary cancellations between the new physics contributions, neither the scalar nor the tensor interaction can produce any significant effects on the $CP$ asymmetries in the processes considered.
description: 36 pages, 2 tables, and 6 figures; bounds on the NP parameters from other processes together with more discussions and references added, final version to be published in JHEP
Kaluza-Klein theories in the framework of Polymer Quantum Mechanics
Creators: name: Montani, Giovanni
name: Segreto, Sebastiano
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide a re-analysis of the $5D$ Kaluza-Klein theory by implementing the polymer representation of the dynamics, both on a classical and a quantum level, in order to introduce in the model information about the existence of a cut-off scale. We start by showing that, in the framework of semi-classical quantum mechanics, the $5D$ Bianchi I model admits a solution in which three space directions expand isotropically, while the remaining one is static, offering in this way a very valuable scenario to implement a Kaluza-Klein paradigm, identifying in such a static dimension the compactified one. We then analyse the behaviour of geodesic motion in the context of the polymer representation, as referred to a $5D$ space-time with a static dimension. We demonstrate that such a revised formulation allows overcoming one of the puzzling questions of the standard Kaluza-Klein model corresponding to the limit of the charge to mass ratio for a particle, inapplicable to any fundamental one. Indeed, here, such a ratio can be naturally attributed to particles predicted by the Standard Model and no internal contradiction of the theory arises on this level. Finally, we study the morphology of the field equation associated with a charged scalar particle, i.e. we analyse a Klein-Gordon equation, which fifth coordinate is viewed in the polymer representation. Here we obtain the surprising result that, although the Kaluza-Klein tower has a deformed structure characterized by irregular steps, the value predicted for the particle mass can be, in principle, set within the Standard Model mass distribution and hence, the problem of the Planckian value of such mass, typical of the standard formulation, is now overcome. However, a problem with the charge to mass ratio still survives in this quantum field formulation.
description: 12 pages, 4 figures
Christopher Caudwell, Raymond Williams and Terry Eagleton
Creators: name: Das Gupta, Kalyan
Publisher: name: University of British Columbia
Year: 2010

description: This dissertation politically analyses the principles of literary evaluation (here called "axiology") argued and applied by the English critics Christopher Caudwell, Raymond Williams, and Terry Eagleton. The paradoxical fact that all three claim to be working within a Marxist framework while producing mutually divergent rationales for literary evaluation prompts a detailed examination of Marx and Engels. Moreover, since Caudwell and Eagleton acknowledge Leninism to be Marxism, and, further, since Eagleton and I both in our own ways argue that Trotskyism--as opposed to Stalinism--is the continuator of Leninism, the evaluative methods of Lenin and Trotsky also become relevant. Examined in light of that revolutionary tradition, however, and in view of the (English) critics' high political self-consciousness, the latter's principles of "literary" evaluation reveal definitive political differences between each other and with Marxism itself, centrally over the question of organised action. Thus, each of the chapters on the English critics begins with an examination of the chosen critic's purely political profile and its relationship to his general theory of literature. Next, I show how the contradictions of his "axiology" express those of his politics. Finally, with Hardy as a focus, I show the influence of each critic's political logic on his particular "literary" assessment of individual authors and texts. The heterogeneity of these critics' evaluations of Hardy, the close correspondence of each critic's general evaluative principles to his political beliefs, and the non-Marxist nature of those beliefs themselves all concretely suggest that none of the three English critics is strictly a Marxist. I do not know whether a genuinely Marxist axiology is inevitable; however, I do admit such a phenomenon as a logical possibility. In any case, I argue, this possibility will never be realised unless aspiring Marxist axiologists seek to match their usually extensive knowledge of literature with an active interest in making international proletarian revolution happen. And, since it can only happen if it is organised, the "Marxist" axiologist without such an orientation will be merely an axiologist without Marxism.
Geometric phase methods with Stokes theorem for a general viscous swimmer
Creators: name: Koens, Lyndon
name: Lauga, Eric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The geometric phase techniques for swimming in viscous flows express the net displacement of a swimmer as a path integral of a field in configuration space. This representation can be transformed into an area integral for simple swimmers using Stokes theorem. Since this transformation applies for any loop, the integrand of this area integral can be used to help design these swimmers. However, the extension of this Stokes theorem technique to more complicated swimmers is hampered by problems with variables that do not commute and by how to visualise and understand the higher dimensional spaces. In this paper, we develop a treatment for each of these problems, thereby allowing the displacement of general swimmers in any environment to be designed and understood similarly to simple swimmers. The net displacement arising from non-commuting variables is tackled by embedding the integral into a higher dimensional space, which can then be visualised through a suitability constructed surface. These methods are developed for general swimmers and demonstrated on {three} benchmark examples: Purcell's two-hinged swimmer, an axisymmetric squirmer in free space {and an axisymmetric squirmer approaching a free interface}. We show in particular that for swimmers with more than two modes of deformation, there exists an infinite set of strokes that generate each net displacement. Hence, in the absence of additional restrictions, general microscopic swimmers do not have a single stroke that maximises their displacement.
description: 42 pages, 11 figures
The Fragmented Glueball: A Personal View
Creators: name: Klempt, Eberhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A coupled-channel analysis has been performed to identify the spectrum of scalar mesons. The data include BESIII data on radiative $J/ψ$ decays into $π^0π^0$,$K_SK_S$, $ηη$, and $ωϕ$, 15 Dalitz plots from $\bar pN$ annihilation at rest at LEAR, the CERN-Munich multipoles for $ππ$ elastic scattering, the $S$-wave from BNL data on $ππ$ scattering into $K_SK_S$, from GAMS data on $ππ\to π^0π^0, ηη$, and $ηη'$, and NA48/2 data on low-mass $ππ$ interactions from $K^\pm\toππe^\pmν$ decays. The analysis reveals the existence of ten scalar isoscalar resonances. The resonances can be grouped into two classes: resonances with a large SU(3) singlet component and those with a large octet component. The production of isoscalar resonances with a large octet component should be suppressed in radiative $J/ψ$ decays. However, in a limited mass range centered at 1900\,MeV, these mesons are produced abundantly. Mainly-singlet scalar resonances are produced over the full mass range but with larger intensity at 1900\,MeV. The total scalar isoscalar yield in radiative decays into scalar mesons shows a clear peak which is interpreted as the scalar glueball of lowest mass.
description: Contribution to Quark Confinement and the Hadron Spectrum 2021. 6 pages, 5 figures, 2 tables
An experimental characterization of core turbulence regimes in Wendelstein 7-X
Creators: name: Carralero, D.
name: Estrada, T.
name: Maragkoudakis, E.
name: Windisch, T.
name: Alonso, J. A.
name: Beurskens, M.
name: Bozhenkov, S.
name: Calvo, I.
name: Damm, H.
name: Ford, O.
name: Fuchert, G.
name: García-Regaña, J. M.
name: Pablant, N.
name: Sánchez, E.
name: Pasch, E.
name: Velasco, J. L.
name: team, the Wendelstein 7-X
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: First results from the optimized helias Wendelstein 7-X stellarator (W7-X) have shown that core transport is no longer mostly neoclassical, as is the case in previous kinds of stellarators. Instead, turbulent transport poses a serious limitation to the global performance of the machine. Several studies have found this particularly relevant for ion transport, with core ion temperatures becoming clamped at relatively low values of $T_{i} \simeq 1.7$ keV, except in the few scenarios in which turbulence can be suppressed. In order to understand turbulent mechanisms at play, it is important to have a clear understanding of the parametric dependencies of turbulent fluctuations, and the relation between them and turbulent transport. In this work we use Doppler reflectometry measurements carried out during a number of relevant operational scenarios to provide a systematic characterization of ion-scale ($k_\perpρ_i\simeq 1$) density fluctuations in the core of W7-X. Then, we study the relation between fluctuation amplitude and plasma profiles and show how distinct regimes can be defined for the former, depending on normalized gradients $a/L_{ne}$ and $a/L_{Ti}$. Furthermore, we discuss the importance of other potentially relevant parameters such as $T_e/T_i$, $E_r$ or collisionality. Comparing the different regimes, we find that turbulence amplitude depends generally on the gradient ratio $η_i=L_{ne}/L_{Ti}$, as would be expected for ITG modes, with the exception of a range of discharges, for which turbulence suppression may be better explained by an ITG to TEM transition triggered by a drop in collisionality. Finally, we show a number of scenarios under which $T_{i,core} > 1.7$ keV is achieved and how core fluctuations are suppressed in all of them, thus providing experimental evidence of microturbulence being the main responsible for the limited ion confinement in W7-X.
description: Manuscript submitted to Nuclear Fusion in May 2021
Online Risks in Children with Special Educational Needs: An exploratory study
Creators: name: Cavallini, Maria Clara
name: Cavallini, Francesca
Publisher: name: Journal of Clinical & Developmental Psychology
Year: 2021

description: Background: Children with learning or attention problems are often more isolated and they more frequently experience low self-esteem, anxiety and depression compared to other children. Some recent studies suggest that they also experience more online risks and that they more frequently receive online sexual requests compared to typically development peers. Method: The present study aims to analyze the risky use of the internet in a small group of children with special educational needs: Learning Disabilities (LD) and Attention Deficit Hyperactivity Disorder (ADHD) compared to that of a small group of typically developing peers. Also, the study shows the perception of parents of both groups about their children internet use. Results: Children with special educational needs who participated in this study were found to be more at risk of perpetration or suffering cyber-bullying, being contacted online by strangers and receive requests for intimate pictures. Small differences also emerged in the parental mediation of these children which is more restrictive compared to that of parents of typically developing children. Conclusion: Results, although they cannot be generalized due to the small number of participants, suggest that it may be important to further study and deeply analyze the use of the web of children with special educational needs.
description: Journal of Clinical & Developmental Psychology, Online First Articles
Quasi-Normal Modes for Logarithmic Conformal Field Theory
Creators: name: Sachs, Ivo
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We generalize the one-to one correspondence between quasi normal modes in 3- dimensional anti deSitter black holes and the poles of the retarded correlators in the boundary conformal field theory to include logarithmic operators in the latter. This analysis is carried out explicitly for the logarithmic mode in chiral topologically massive gravity.
description: 8 pages, published version, comments added, typos and references fixed
Search for B0->phiK+pi- Decays with Large K+pi- Invariant Mass
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by the polarization anomaly in the B->phi(1020)K*(892) decay, we extend our search for other K* final states in the decay B0->phi(1020)K^*0 with the K*0->K+pi- invariant mass above 1.6 GeV. The final states considered include the K*(1680)0, K3*(1780)0, K4*(2045)0, and a Kpi spin-zero nonresonant component. We also search for B0->phiDbar0 decay with the same final state. The analysis is based on a sample of about 384 million BBbar pairs recorded with the BABAR detector. We place upper limits on the branching fractions BR(B0->phiK*(1680)0)<3.5*10^-6, BR(B0->phiK3*(1780)0)<2.7*10^-6, BR(B0->phiK4*(2045)0)<15.3*10^-6, and BR(B0->phiDbar0)<11.7*10^-6 at 90% C.L. The nonresonant contribution is consistent with the measurements in the lower invariant mass range.
description: 8 pages, 8 postscript figues, submitted to Phys. Rev. D (Rapid Communications)
Determination of Vega's rotational velocity based on the Fourier analysis of spectral line profiles
Creators: name: Takeda, Yoichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: While it is known that the sharp-line star Vega (vsini ~ 20km/s) is actually a rapid rotator seen nearly pole-on with low i (< 10 deg), no consensus has yet been accomplished regarding its intrinsic rotational velocity (v_e), for which rather different values have been reported so far. Methodologically, detailed analysis of spectral line profiles is useful for this purpose, since they reflect more or less the v_e-dependent gravitational darkening effect. However, direct comparison of observed and theoretically simulated line profiles is not necessarily effective in practice, where the solution is sensitively affected by various conditions and the scope for combining many lines is lacking. In this study, determination of Vega's v_e was attempted based on an alternative approach making use of the first zero (q_1) of the Fourier transform of each line profile, which depends upon K (temperature sensitivity parameter differing from line to line) and v_e. It turned out that v_e and vsini could be separately established by comparing the observed q_1^obs and calculated q_1^cal values for a number of lines of different K. Actually, independent analysis applied to two line sets (49 Fe I lines and 41 Fe II lines) yielded results reasonably consistent with each other. The final parameters of Vega's rotation were concluded as vsini = 21.6 (+/- 0.3) km/s, v_e = 195 (+/- 15) km/s, and i = 6.4 (+/- 0.5) deg.
description: 13 pages (8 figures and 4 tables) along with supplementary materials (electronic data tables); Accepted for publication in MNRAS
Supplementary document for Switchable terahertz chiral metasurface for linear and circular dichroism - 7455095.pdf
Creators: name: zhuang, Lingyun
name: Liu, Jietao
name: Jiang, Zengxuan
name: Ge, Zihui
name: Hui, Ren
name: Cheng, Bo
name: Wei, Xin
name: Song, Guofeng
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: The preparation process of the metasurface, dichroic responses of rotated and mirrored units
ผลการเรียนรู้ กลุ่มสาระการเรียนรู้คณิตศาสตร์ เรื่อง อสมการชั้นมัธยมศึกษาปีที่ 3 โดยใช้การจัดกิจกรรมการเรียนรู้แบบร่วมมือ
Creators: name: สุรีพร ศิรินามมนตรี
name: สมทรง สุวพานิช
name: นิคม ชมพูหลง
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2011
Subjects: ผลการเรียนรู้, การจัดกิจกรรมการเรียนรู้แบบร่วมมือ

description: 1, 5, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
Multi-resolution stereo vision with application to the automated measurement of logs
Creators: name: Clark, James Joseph
Publisher: name: University of British Columbia
Year: 2010

description: A serial multi-resolution stereo matching algorithm is presented that is based on the Marr-Poggio matcher (Marr and Poggio, 1979). It is shown that the Marr-Poggio feature disambiguation and in-range/out-of-range mechanisms are unreliable for non-constant disparity functions. It is proposed that a disparity function estimate reconstructed from the disparity samples at the lower resolution levels be used to disambiguate possible matches at the high resolutions. Also presented is a disparity scanning algorithm with a similar control structure, which is based on an algorithm recently proposed by Grimson (1985). It is seen that the proposed algorithms will function reliably only if the disparity measurements are accurate and if the reconstruction process is accurate. The various sources of errors in the matching are analyzed in detail. Witkin's (Witkin, 1983) scale space is used as an analytic tool for describing a hitherto unreported form of disparity error, that caused by spatial filtering of the images with non-constant disparity functions. The reconstruction process is analyzed in detail. Current methods for performing the reconstruction are reviewed. A new method for reconstructing functions from arbitrarily distributed samples based on applying coordinate transformations to the sampled function is presented. The error due to the reconstruction process is analyzed, and a general formula for the error as a function of the function spectra, sample distribution and reconstruction filter impulse response is derived. Experimental studies are presented which show how the matching algorithms perform with surfaces of varying bandwidths, and with additive image noise. It is proposed that matching of scale space feature maps can eliminate many of the problems that the Marr-Poggio type of matchers have. A method for matching scale space maps which operates in the domain of linear disparity functions is presented. This algorithm is used to experimentally verify the effect of spatial filtering on the disparity measurements for non-constant disparity functions. It is shown that measurements can be made on the binocular scale space maps that give an independent estimate of the disparity gradient this leads to the concept of binocular diffrequency. It is shown that the diffrequency measurements are not affected by the spatial filtering effect for linear disparities. Experiments are described which show that the disparity gradient can be obtained by diffrequency measurement. An industrial application for stereo vision is described. The application is automated measurement of logs, or log scaling. A moment based method for estimating the log volume from the segmented two dimensional disparity map of the log scene is described. Experiments are described which indicate that log volumes can be estimated to within 10%.
Solving radiative transfer with line overlaps using Gauss Seidel algorithms
Creators: name: Daniel, F.
name: Cernicharo, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The improvement in observational facilities requires refining the modelling of the geometrical structures of astrophysical objects. Nevertheless, for complex problems such as line overlap in molecules showing hyperfine structure, a detailed analysis still requires a large amount of computing time and thus, misinterpretation cannot be dismissed due to an undersampling of the whole space of parameters. We extend the discussion of the implementation of the Gauss--Seidel algorithm in spherical geometry and include the case of hyperfine line overlap. We first review the basics of the short characteristics method that is used to solve the radiative transfer equations. Details are given on the determination of the Lambda operator in spherical geometry. The Gauss--Seidel algorithm is then described and, by analogy to the plan--parallel case, we see how to introduce it in spherical geometry. Doing so requires some approximations in order to keep the algorithm competitive. Finally, line overlap effects are included. The convergence speed of the algorithm is compared to the usual Jacobi iterative schemes. The gain in the number of iterations is typically factors of 2 and 4 for the two implementations made of the Gauss--Seidel algorithm. This is obtained despite the introduction of approximations in the algorithm. A comparison of results obtained with and without line overlaps for N2H+, HCN, and HNC shows that the J=3-2 line intensities are significantly underestimated in models where line overlap is neglected.
description: 11 pages, 13 figures, accepted in A&A
Integrating extracted information from bert and multiple embedding methods with the deep neural network for humour detection
Creators: name: Miraj, Rida
name: Aono, Masaki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Humour detection from sentences has been an interesting and challenging task in the last few years. In attempts to highlight humour detection, most research was conducted using traditional approaches of embedding, e.g., Word2Vec or Glove. Recently BERT sentence embedding has also been used for this task. In this paper, we propose a framework for humour detection in short texts taken from news headlines. Our proposed framework (IBEN) attempts to extract information from written text via the use of different layers of BERT. After several trials, weights were assigned to different layers of the BERT model. The extracted information was then sent to a Bi-GRU neural network as an embedding matrix. We utilized the properties of some external embedding models. A multi-kernel convolution in our neural network was also employed to extract higher-level sentence representations. This framework performed very well on the task of humour detection.
การพัฒนาคุณธรรมจริยธรรมและคุณลักษณะอันพึงประสงค์ 8 ประการ ตามหลักสูตรแกนกลางการศึกษาขั้นพื้นฐาน พ.ศ. 2551 กรณีศึกษาโรงเรียนแกดำวิทยาคาร สำนักงานเขตพื้นที่การศึกษามหาสารคาม เขต 1
Creators: name: ทองพูล ภูสิม
name: ศักดิ์พงศ์ หอมหวน
name: สมบัติ ฤทธิเดช
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2011
Subjects: การพัฒนาคุณธรรมจริยธรรม, คุณลักษณะอันพึงประสงค์ 8 ประการ, หลักสูตรแกนกลาง, การศึกษาขั้นพื้นฐาน

description: 1, 5, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
Spontaneous CP Violating Phase as The CKM Matrix Phase
Creators: name: Chen, Shao-Long
name: Deshpande, N. G.
name: He, Xiao-Gang
name: Jiang, Jing
name: Tsai, Lu-Hsing
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose that the CP violating phase in the CKM mixing matrix is identical to the CP phases responsible for the spontaneous CP violation in the Higgs potential. A specific multi-Higgs model with Peccei-Quinn (PQ) symmetry is constructed to realize this idea. The CP violating phase does not vanish when all Higgs masses become large. There are flavor changing neutral current (FCNC) interactions mediated by neutral Higgs bosons at the tree level. However, unlike general multi-Higgs models, the FCNC Yukawa couplings are fixed in terms of the quark masses and CKM mixing angles. Implications for meson-anti-meson mixing, including recent data on $D-\bar D$ mixing, and neutron electric dipole moment (EDM) are studied. We find that the neutral Higgs boson masses can be at the order of one hundred GeV. The neutron EDM can be close to the present experimental upper bound.
description: 16 pages, RevTex. Several typos corrected, and one reference added