cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comprehensive Analysis of RXTE Data from Cyg X-1: Spectral Index-Quasi-Periodic Oscillation Frequency-Luminosity Correlations
Creators: name: Shaposhnikov, Nickolai
name: Titarchuk, Lev
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present timing and spectral analysis of ~ 2.2 Ms of RXTE archival data from Cyg X-1. Using a generic Comptonization model we reveal that the spectrum of Cyg X-1 consists of three components: a thermal seed photon spectrum, a Comptonized part of the seed photon spectrum and the iron line. We find a strong correlation between the 0.1-20 Hz frequencies of quasiperiodic oscillations (QPOs) and the spectral index. Presence of two spectral phases (states) are clearly seen in the data when the spectral indices saturate at low and high values of QPO frequencies. This saturation effect was discovered earlier in a number of black hole candidate (BHC) sources and now we strongly confirm this phenomenon in Cyg X-1. In the soft state this index-QPO frequency correlation shows a saturation of the photon index Gamma ~ 2.1 at high values of the low frequency ν_{L}. The saturation level of Gamma~ 2.1 is the lowest value found yet in BHCs. The bolometric luminosity does not show clear correlation with the index. We also show that Fe K_α emission line strength (equivalent width, EW) correlates with the QPO frequency. The EW increases from 200 eV in the low/hard state to 1.5 keV in the high/soft state. The observational correlations revealed compel us to propose a scenario for the spectral transition and iron line formation which occur in BHC sources. We also present the spectral state (power-law index) evolution for eight years of Cyg X-1 observations by RXTE.
description: 28 pages, 15 figures and two tables. Accepted for publication in the ApJ
What is a 4-connected matroid?
Creators: name: Brettell, Nick
name: Jowett, Susan
name: Oxley, James
name: Semple, Charles
name: Whittle, Geoff
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B35

description: The {\em breadth} of a tangle $\mathcal{T}$ in a matroid is the size of the largest spanning uniform submatroid of the tangle matroid of $\mathcal{T}$. A matroid $M$ is {\em weakly $4$-connected} if it is 3-connected and whenever $(X,Y)$ is a partition of $E(M)$ with $|X|,|Y|>4$, then $λ(X)\geq 3$. We prove that if $\mathcal{T}$ is a tangle of order $k\geq 4$ and breadth $l$ in a matroid $M$, then $M$ has a weakly 4-connected minor $N$ with a tangle $\mathcal{T}$ of order $k$, breadth $l$ and has the property that $\mathcal{T}$ is the tangle in $M$ induced by $\mathcal{T}_N$. A set $Z$ of elements of a matroid $M$ is $4$-{\em connected} if $λ(A)\geq\min\{|A\cap Z|,|Z-A|,3\}$ for all $A\subseteq E(M)$. As a corollary of our theorems on tangles we prove that if $M$ contains an $n$-element $4$-connected set where $n\geq 7$, then $M$ has a weakly $4$-connected minor that contains an $n$-element $4$-connected set.
description: 37 pages
From fever to digestive disease : approaches to the problem of factory ill-health in Britain, 1784-1833
Creators: name: Paterson, Carla Susan
Publisher: name: University of British Columbia
Year: 2009

description: In the early decades of British industrialization, the ill-health of textile factory workers attracted considerable public interest and provoked discussion and debate among a growing number of medical men, operatives, manufacturers, and social and political commentators. Guided by previous studies of the “framing” of disease, this dissertation examines how such ill-health was conceived, designated and responded to in the period from 1784 to 1833. The dissertation reveals that workers themselves held a relatively constant view of their condition. In the early part of the nineteenth century, they drew attention to a variety of ailments and throughout the period they saw a clear link between their maladies and the conditions of their labour. By contrast, medical understanding shifted significantly, and as it traced a course more or less at odds with that of popular comprehension, the nature and causes of worker suffering were substantially redefined. In the 1780s and 1790s, doctors identified the illness of factory labourers as “low, nervous fever,” an acute contagious disorder generated by the crowding and confinement of human bodies. A generation later, in the period from 1815 to 1819, the ill-health of mill workers was conceptualized, by a portion of the medical community, as “debility,” a poorly-understood state of constitutional feebleness attributed to aspects of machine work. In the early 1830s, medical authorities regarded factory workers’ sickness primarily as “digestive disease” and located its source in habits and diet. The reconceptualization of worker ill-health yielded an ultimately optimistic assessment of the consequences of industrial growth, failing to offer strong support to demands for legislative restriction of factory operation. It also served to sanction changing social relations through providing evidence of the physical and moral distinctness of the manufacturing population. As medical theory altered, so, too, did practices of relief and assistance. While mill owners, and doctors, became increasingly unwilling to assume responsibility for the well-being of the industrial workforce, operatives engaged ever more extensively in practices of self-help. The expansion of the textile industry, however, ensured the continuation of their affliction and incapacity.
On various validity criteria for the configuration average in collisional-radiative codes
Creators: name: Poirier, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The characterization of out-of-local-thermal-equilibrium plasmas requires the use of collisional-radiative kinetic equations. This leads to the solution of large linear systems, for which statistical treatments such as configuration average may bring considerable simplification. In order to check the validity of this procedure, a criterion based on the comparison between a partial-rate systems and the Saha-Boltzmann solution is discussed in detail here. Several forms of this criterion are discussed. The interest of these variants is that they involve each type of relevant transition (collisional or radiative), which allows one to check separately the influence of each of these processes on the configuration-average validity. The method is illustrated by a charge-distribution analysis in carbon and neon plasmas. Finally, it is demonstrated that when the energy dispersion of every populated configuration is smaller than the electron thermal energy, the proposed criterion is fulfilled in each of its forms.
description: 27 pages, 3 figures; title and few misprints corrected in version 2
Measurement of the Entropy and Critical Temperature of a Strongly Interacting Fermi Gas
Creators: name: Luo, L.
name: Clancy, B.
name: Joseph, J.
name: Kinast, J.
name: Thomas, J. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report a model-independent measurement of the entropy, energy, and critical temperature of a degenerate, strongly interacting Fermi gas of atoms. The total energy is determined from the mean square cloud size in the strongly interacting regime, where the gas exhibits universal behavior. The entropy is measured by sweeping a bias magnetic field to adiabatically tune the gas from the strongly interacting regime to a weakly interacting regime, where the entropy is known from the cloud size after the sweep. The dependence of the entropy on the total energy quantitatively tests predictions of the finite-temperature thermodynamics.
description: 16 pages, 3 figures
Realistic, quantitative descriptions of electron-transfer reactions: diabatic free-energy surfaces from first-principles molecular dynamics
Creators: name: Sit, P. H. -L.
name: Cococcioni, Matteo
name: Marzari, Nicola
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A general approach to calculate the diabatic surfaces for electron-transfer reactions is presented, based on first-principles molecular dynamics of the active centers and their surrounding medium. The excitation energy corresponding to the transfer of an electron at any given ionic configuration (the Marcus energy gap) is accurately assessed within ground-state density-functional theory via a novel penalty functional for oxidation-reduction reactions that appropriately acts on the electronic degrees of freedom alone. The self-interaction error intrinsic to common exchange-correlation functionals is also corrected by the same penalty functional. The diabatic free-energy surfaces are then constructed from umbrella sampling on large ensembles of configurations. As a paradigmatic case study, the self-exchange reaction between ferrous and ferric ions in water is studied in detail.
description: 5 pages, 4 figures, accepted for publication in Phys. Rev. Lett
Stabilizers of functional Menger systems
Creators: name: Dudek, Wieslaw A.
name: Trokhimenko, Valentin S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Mathematics (math.GM)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20N15; 08N05

description: A functional Menger system is a set of $n$-place functions containing $n$ projections and closed under the so-called Menger's composition of $n$-place functions. We give the abstract characterization for subsets of these functional systems which contain functions having one common fixed point.
description: 16 pages
Heating in the Accreted Neutron Star Ocean: Implications for Superburst Ignition
Creators: name: Gupta, Sanjib
name: Brown, Edward F.
name: Schatz, Hendrik
name: Moeller, Peter
name: Kratz, Karl-Ludwig
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We perform a self-consistent calculation of the thermal structure in the crust of a superbursting neutron star. In particular, we follow the nucleosynthetic evolution of an accreted fluid element from its deposition into the atmosphere down to a depth where the electron Fermi energy is 20 MeV. We include temperature-dependent continuum electron capture rates and realistic sources of heat loss by thermal neutrino emission from the crust and core. We show that, in contrast to previous calculations, electron captures to excited states and subsequent gamma-emission significantly reduce the local heat loss due to weak-interaction neutrinos. Depending on the initial composition these reactions release up to a factor of 10 times more heat at densities < 10^{11} g/cc than obtained previously. This heating reduces the ignition depth of superbursts. In particular, it reduces the discrepancy noted by Cumming et al. between the temperatures needed for unstable 12C ignition on timescales consistent with observations and the reduction in crust temperature from Cooper pair neutrino emission.
description: 10 pages, 11 figures, the Astrophysical Journal, in press (scheduled for v. 662). Revised from v1 in response to referee's comments
การศึกษาการใช้ภาษาอังกฤษของเจ้าของธุรกิจวิสาหกิจขนาดกลางและขนาดย่อม
Creators: name: กาญจนา ชาตตระกูล
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: การใช้ภาษาอังกฤษ,ธุรกิจวิสาหกิจขนาดกลางและขนาดย่อม,ความพึงพอใจของนักท่องเที่ยว

description: 2, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
On the molecular origins of the ferroelectric splay nematic phase
Creators: name: Mandle, Richard J.
name: Sebastián, Nerea
name: Martinez-Perdiguero, Josu
name: Mertelj, Alenka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Nematic liquid crystals have been known for more than a century, but it was not until the 60s-70s that, with the development of room temperature nematics, they became widely used in applications. Polar nematic phases have been long-time predicted, but have only been experimentally realized recently. Synthesis of materials with nematic polar ordering at room temperature is certainly challenging and requires a deep understanding of its formation mechanisms, presently lacking. Here, we compare two materials of similar chemical structure and demonstrate that just a subtle change in the molecular structure enables denser packing of the molecules when they exhibit polar order, which shows that reduction of excluded volume is in the origin of the polar nematic phase. Additionally, we propose that molecular dynamics simulations are potent tools for molecular design in order to predict, identify and design materials showing the polar nematic phase and its precursor nematic phases.
description: 33 pages, 21 of main manuscript and 12 of Supporting Information, 7 main figures
การศึกษาตัวแปรที่สัมพันธ์กับความสำเร็จในการประกอบวิชาชีพครู A Study of Variables Related to the Achievement of Teacher Profession Performance
Creators: name: พูลทรัพย์ นาคนาคาและคณะ
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: การประกอบวิชาชีพครู,ความสำเร็จ,มาตรฐานการศึกษา

description: 2, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Synthesis of radioactive elements in novae and supernovae and their use as a diagnostic tool
Creators: name: Isern, J.
name: Hernanz, M.
name: Bravo, E.
name: Grebenev, S.
name: Jean, P.
name: Renaud, M.
name: Siegert, T.
name: Vink, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Novae and supernovae play a key role in many fields of Astrophysics and Cosmology. Despite their importance, an accurate description of which objects explode and why and how they explode is still lacking. One of the main characteristics of such explosions is that they are the main suppliers of newly synthesized chemical elements in the Galaxy. Since some of these isotopes are radioactive, it is possible to use the corresponding gamma-rays as a diagnostic tool of the explosion thanks to their independence on the thermal state of the debris. The drawback is the poor sensitivity of detectors in the MeV energy domain. As a consequence, the radioactive lines have only been detected in one core collapse supernova (SN 1987A), one Type Ia supernova (SN 2014J), and one supernova remnant (Cas A). Nevertheless these observations have provided and are providing important information about the explosion mechanisms. Unfortunately, novae are still eluding detection. These results emphasize the necessity to place as soon as possible a new instrument in orbit with enough sensitivity to noticeably enlarge the sample of detected events
description: Contribution to Review Book "15 years of INTEGRAL". Accepted for publication in New Astronomy Reviews
Particle dynamics around a dyonic charged black hole
Creators: name: Khan, Saeed Ullah
name: Ren, Jingli
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83C10, 83C57

description: In this article, we study the circular motion of particles and the well-known Penrose mechanism around a Kerr-Newman-Kasuya black hole spacetime. The inner and outer horizons, as well as ergosurfaces of the said black hole, are briefly examined under the effect of spin and dyonic charge. Moreover, by limiting our exploration to the equatorial plane, we discuss the characteristics of circular geodesics and investigate both photons, as well as marginally stable circular orbits. It is noted that black hole charge diminishing the radii of photon and marginally stable circular orbits. To investigate the nature of particle dynamics, we studied the effective potential and Lyapunov exponent. While inspecting the process of energy extraction, we derived the Wald inequality, which can help us to locate the energy limits of the Penrose process. Furthermore, we have found expressions for the negative energy states and the efficiency of energy extraction. The obtained result illustrates that both black hole rotation and dyonic charge contributes to the efficiency of energy extraction.
description: 15 pages, 7 figures
การวิจัยปฏิบัติการแบบมีส่วนร่วมเพื่อพัฒนาวัตถุดิบและกระบวนการผลิตให้ได้มาตรฐานในผ้าทอพื้นบ้านจังหวัดสุพรรพบุรี: ระยะสืบค้น
Creators: name: นุจิรา รัศมีไพบูลย์
name: สุพรรณ สมไทย
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: การวิจัยปฏิบัติการแบบมีส่วนร่วม,วัตถุดิบ,กระบวนการผลิตผ้าทอพื้นบ้าน,สุพรรพบุรี

description: 2, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Quark-gluon densities in the nuclear fragmentation region in heavy ion collisions at LHC
Creators: name: Strikman, Mark
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: At the LHC, the leading partons in the nuclei are expected to interact with the maximal possible strength - black disk limit - up to transverse momenta of the order of few GeV. We demonstrate that in this limit the densities of the quark - gluon systems produced in the central AA collisions in the nucleus fragmentation regions should exceed 300 GeV/fm^3 which is at least as high as the densities discussed for the central region. Experimental signatures of such a regime are also discussed.
description: 3 pages. Uses aipproc.cls. Contributed to proceedings of PANIC05, Santa Fe, NM, Oct. 24-28, 2005
การวิเคราะห์เนื้อหาของโฆษณาในนิตยสารผู้หญิงในแง่เทคนิคดึงดูดใจและวิธีการสื่อสารด้วยภาพ
Creators: name: สิทธิ์ ธีรสรณ์
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: โฆษณา,นิตยสารผู้หญิง,เทคนิคดึงดูดใจ,การสื่อสารด้วยภาพ

description: 2, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Single-Shot Orientation Imaging of Nanorods Using Spin-to-Orbital Angular Momentum Conversion of Light
Creators: name: Fordey, Tomáš
name: Bouchal, Petr
name: Baránek, Michal
name: Schovánek, Petr
name: Bouchal, Zdeněk
name: Dvořák, Petr
name: Rovenská, Katarína
name: Ligmajer, Filip
name: Chmelík, Radim
name: Šikola, Tomáš
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The key information about any nanoscale system are orientations and conformations of its parts. Unfortunately, these details are often hidden below the diffraction limit and elaborate techniques must be used to optically probe them. Here, we present a single-shot imaging technique allowing time-resolved monitoring of rotation motion of metal nanorods, realized in a wide-field regime and with no ambiguity of the measured angles. In our novel method, the nanorod orientation is imprinted onto a geometric phase of scattered light composed of the opposite spin states. By spin-to-orbital angular momentum conversion, we generate two oppositely winding helical waves (optical vortices) that are used for restoring the nanorod in-plane orientation. The method was calibrated using lithographically fabricated nanorods and tested by the rotation imaging of immobilized and moving sub-100 nm colloidal nanorods (measurement accuracy of 2.5°). We envision this technique can be used also for estimation of nanorod aspect ratios and their out-of-plane orientations.
description: 12 pages, 5 figures, Supplementary material
Trinion Conformal Blocks from Topological strings
Creators: name: Coman, Ioana
name: Pomoni, Elli
name: Teschner, Joerg
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019

description: In this paper we investigate the relation between conformal blocks of Liouville CFT and the topological string partition functions of the rank one trinion theory $T_2$. The partition functions exhibit jumps when passing from one chamber in the parameter space to another. Such jumps can be attributed to a change of the integration contour in the free field representation of Liouville conformal blocks. We compare the partition functions of the $T_2$ theories representing trifundamental half hypermultiplets in $N=2$, $d=4$ field theories to the partition functions associated to bifundamental hypermultiplets. We find that both are related to the same Liouville conformal blocks up to inessential factors. In order to establish this picture we combine and compare results obtained using topological vertex techniques, matrix models and topological recursion. We furthermore check that the partition functions obtained by gluing two $T_2$ vertices can be represented in terms of a four point Liouville conformal block. Our results indicate that the $T_2$ vertex offers a useful starting point for developing an analog of the instanton calculus for SUSY gauge theories with trifundamental hypermultiplets.
title: Cloud Networks as Platform-based Ecosystems : Detecting Management Implications for Actors in Cloud Networks
Creators: name: Keller, Robert
Publisher: name: University of Bayreuth
Year: 2019
Subjects: subject: Cloud Computing
subject: Ecosystems
subject: Digital Platforms
subject: 330

description: Platform-based ecosystems are omnipresent in today’s world. This doctoral thesis focuses on cloud computing, which is an emerging platform-based ecosystem that companies adopt in their IT strategy quickly. Actors in cloud computing often create value by adding functionality to services already existing in the ecosystem. This development is likely to transform cloud computing toward complex, globally distributed networks, consisting of many different actors and connections. In the doctoral thesis I define those structures as cloud networks. For general platform-based ecosystems, Tiwana et al. (2010) and de Reuver et al. (2018) each set up a research agenda for platform-based ecosystems. I contribute to four proposed research items: (1) Tiwana et al. (2010) demand research on how platform architecture influences the dynamics in ecosystems and modules. (2) de Reuver et al. (2018) emphasize research on the question regarding how actors strategize, i.e., think strategically, about a situation or business in platform environments, as interconnected thinking is particularly important for decision makers. (3) de Reuver et al. (2018) demand research on how platform providers can jointly shape platforms with other stakeholders of the platform. (4) Tiwana et al. (2010) emphasize research on how the fit between platform architecture and platform governance influences the dynamics of ecosystems and modules. The doctoral thesis consists of five papers that directly contribute to these research items. By providing a taxonomy of actors, a taxonomy of risks, as well as a reference model that enables the instantiation interactions between actors in cloud networks, it provides a tool that enables the illustration of dynamics in cloud networks. Next, it illustrates strategies for companies in platform-based ecosystems and provides guidance for ITgovernance with respect to the specific characteristics of cloud networks. Also, it analyzes how customers can utilize cloud spot prices to monetarize their temporal flexibility. To illustrate the shaping of platforms, the dissertation describes preliminary design principles for a power flexibility platform that many companies develop jointly in a publicly funded research project. By analyzing the utilization of cloud spot prices and by describing preliminary design principles for the power flexibility platform, the thesis further guides actors on how to utilize digital options in platform environments, and it provides decision support for specific scenarios which could transfer knowledge to the general context of platform-based ecosystems. Finally, the doctoral thesis analyzes how platform governance influences the dynamics in platform-based ecosystems and provides guidance for IT-governance with respect to the specific characteristics of cloud networks.
General(ized) Hartman effect
Creators: name: Hasan, Mohammad
name: Mandal, Bhabani Prasad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this letter we prove explicitly that if Hartman effect exists for an arbitrary `unit cell' potential, then it also exist for a periodic system constructed using the same `unit cell' potential repeatedly. We further show that if Hartman effect exists, the tunneling time in the limiting case of a sufficiently thick `unit cell' potential is same as that of its periodic system. This is true for any arbitrary value of the intervening gap between the consecutive `unit cell' of the periodic system. Thus generalized Hartman effect always occurs for a general potential constructed using multiple copies of single potential which shows Hartman effect.
description: 7 pages, No figs
A Backtracking-Based Algorithm for Computing Hypertree-Decompositions
Creators: name: Gottlob, Georg
name: Samer, Marko
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.8

description: Hypertree decompositions of hypergraphs are a generalization of tree decompositions of graphs. The corresponding hypertree-width is a measure for the cyclicity and therefore tractability of the encoded computation problem. Many NP-hard decision and computation problems are known to be tractable on instances whose structure corresponds to hypergraphs of bounded hypertree-width. Intuitively, the smaller the hypertree-width, the faster the computation problem can be solved. In this paper, we present the new backtracking-based algorithm det-k-decomp for computing hypertree decompositions of small width. Our benchmark evaluations have shown that det-k-decomp significantly outperforms opt-k-decomp, the only exact hypertree decomposition algorithm so far. Even compared to the best heuristic algorithm, we obtained competitive results as long as the hypergraphs are not too large.
description: 19 pages, 6 figures, 3 tables
รูปแบบการพัฒนาวิชาชีพครูของมหาวิทยาลัยราชภัฏสวนดุสิตที่ใช้สำหรับพัฒนาครูปฐมวัยสังกัดองค์กรปกครองส่วนท้องถิ่น กรมส่งเสริมการปกครองท้องถิ่น กระทรวงมหาดไทย
Creators: name: เบญจวรรณ กี่สุขพันธ์
name: ผดุง พรมมูล
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: วิชาชีพครู,มหาวิทยาลัยราชภัฏสวนดุสิต,ครูปฐมวัย,องค์กรปกครองส่วนท้องถิ่น

description: 2, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Electroweak corrections to gg → HH: Factorizable contributions
Creators: name: Davies, Joshua
name: Schönwald, Kay
name: Steinhauser, Matthias
name: Zhang, Hantian
Publisher: name: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Year: 2024

description: In these proceedings, we consider the factorizable contributions of the two-loop electroweak corrections to Higgs boson pair production at the Large Hadron Collider.We discuss the classification of factorizable diagrams and their renormalization.Compact analytic results for the renormalized form factors are presented in a computer-readable form.
พัฒนาการทางคำศัพท์ของเด็กบกพร่องทางสติปัญญาโดยใช้กิจกรรมการเล่านิทาน : กรณีศึกษาศูนย์พัฒนาเด็กเล็กจังหวัดพัทลุงที่มีนักศึกษาโครงการความร่วมมือระหว่าง กรมส่งเสริมการปกครองท้องถิ่นกับมหาวิทยาลัยราชภัฏสวนดุสิต
Creators: name: นุชฤดี ลุ่ยใหม่
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: พัฒนาการ,เด็กบกพร่องทางสติปัญญา,กิจกรรมการเล่านิทาน,ศูนย์พัฒนาเด็กเล็ก

description: 2, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Exploring and enhancing the accuracy of interior-scaled Perdew-Zunger self-interaction correction
Creators: name: Bhattarai, Puskar
name: Santra, Biswajit
name: Wagle, Kamal
name: Yamamoto, Yoh
name: Zope, Rajendra R.
name: Ruzsinszky, Adrienn
name: Jackson, Koblar Alan
name: Perdew, John P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The Perdew-Zunger self-interaction correction(PZ-SIC) improves the performance of density functional approximations(DFAs) for the properties that involve significant self-interaction error(SIE), as in stretched bond situations, but overcorrects for equilibrium properties where SIE is insignificant. This overcorrection is often reduced by LSIC, local scaling of the PZ-SIC to the local spin density approximation(LSDA). Here we propose a new scaling factor to use in an LSIC-like approach that satisfies an additional important constraint: the correct coefficient of atomic number Z in the asymptotic expansion of the exchange-correlation(xc) energy for atoms. LSIC and LSIC+ are scaled by functions of the iso-orbital indicator zσ, which distinguishes one-electron regions from many-electron regions. LSIC+ applied to LSDA works better for many equilibrium properties than LSDA-LSIC and the Perdew, Burke, and Ernzerhof(PBE) generalized gradient approximation(GGA), and almost as well as the strongly constrained and appropriately normed(SCAN) meta-GGA. LSDA-LSIC and LSDA-LSIC+, however, both fail to predict interaction energies involving weaker bonds, in sharp contrast to their earlier successes. It is found that more than one set of localized SIC orbitals can yield a nearly degenerate energetic description of the same multiple covalent bond, suggesting that a consistent chemical interpretation of the localized orbitals requires a new way to choose their Fermi orbital descriptors. To make a locally scaled-down SIC to functionals beyond LSDA requires a gauge transformation of the functional's energy density. The resulting SCAN-sdSIC, evaluated on SCAN-SIC total and localized orbital densities, leads to an acceptable description of many equilibrium properties including the dissociation energies of weak bonds.
description: 12 pages, 8 figures
Evaluation of different prophylactic methods against selenium deficiency in sheep grazing on range in Southwestern Spain
Creators: name: BENITO HERNÁNDEZ, MILAGROS
Publisher: name: Zenodo
Year: 1997
Subjects: Selenium
Sheep
Barium selenate
Sodium selenite

description: Various selenium treatments were given to four groups of 50 ewes control Ž sno selenium treatment, BSsbariumselenate 1 mg Serkg liveweight subcutaneously, SSssodium selenite 0.03 mg Serkg liveweight subcutaneously,SAsselenium plus albendazole 0.162 mg Serkg liveweight per os in the last trimester of pregnancy. Blood and plasma .GSHPx activities were measured in the ewes before treatment, a few days after it, at the end of pregnancy and in thepost-parturition period 0, 15, 42 and 72 days after treatment . These activities were also measured in 15-day-old lambs from Ž .the control and treated ewes. In addition, the evolution of blood GSHPx activity in the four groups throughout theexperiment was compared with plasma GSHPx activity. Finally, a correlation study was performed on the values of GSHPxactivity between the ewes and their lambs. The results for blood GSHPx activity obtained in the last sampling in adult sheep,72 days after treatment were: 37.00"15.21 IUrg Hb for control, 236.20"19.66 IUrg Hb for BS, 43.20"10.42 IUrg Hbfor SS and 57.40"7.61 IUrg Hb for SA. For plasma GSHPx activity the results were: 101.80"13.20 IUrL for control,209.00"41.00 IUrl for BS, 101.00"8.00 IUrl for SS and 86.60"14.90 IUrl for SA. In the lambs blood GSHPxactivities were: 50.57"8.49 IUrg Hb for control, 249.00"44.55 IUrg Hb for BS, 53.29"11.95 IUrg Hb for SS and65.86"6.17 IUrg Hb for SA. Plasma GSHPx activities in lambs were: 66.40"10.02 IUrl for control, 363.43"57.38IUrl for BS, 89.00"32.87 IUrl for SS and 83.37"7.33 IUrl for SA. The correlation coefficients obtained from GSHPxvalues of the ewes and their lambs were 0.76 for blood and 0.94 for plasma, both statistically significant Ž . P-0.05 . Thebest treatment was barium selenate. At medium stages, the efficacy of a sodium selenite compound could not be properlyevaluated by the measure of plasma GSHPx activity. This GSHPx enzyme determination in ewes, in blood and plasma, isadequate to make a prediction and to prevent selenium deficiency in lambs. q 1998 Elsevier Science B.V. All rightsreserved
ความสัมพันธ์ระหว่างศักยภาพของอาจารย์ประจำตามสัญญากับการปฏิบัติงานตามพันธกิจของอาจารย์ระดับอุดมศึกษาของมหาวิทยาลัยราชภัฏในเขตกรุงเทพมหานคร
Creators: name: ยงยุทธ เกษสาคร
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: ศักยภาพ,พันธกิจของอาจารย์ระดับอุดมศึกษา,มหาวิทยาลัยราชภัฏ,กรุงเทพมหานคร

description: 2, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
PFA and the definability of the nonstationary ideal
Creators: name: Hoffelner, Stefan
name: Larson, Paul
name: Schindler, Ralf
name: Wu, Liuzhen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We produce, relative to a ${\sf ZFC}$ model with a supercompact cardinal, a ${\sf ZFC}$ model of the Proper Forcing Axiom in which the nonstationary ideal on $ω_1$ is $Π_1$-definable in a parameter from $H_{\aleph_2}$.
Protected Designation of Origin food chain arrangements: leveraging market power for small-scale producers in marginal regions
Creators: name: Micha, Evgenia
name: Vigani, Mauro
name: Vlahos, George
name: Tsakalou, Emi
name: Maye, Damian
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Feta cheese is a Greek product under Protection Designation of Origin (PDO), benefiting its producing regions with its marketing potential. However, farmers are evidently often excluded from this value chain. This study aims at understanding the opportunities farmers in Greece have for supply chain arrangements (SCAs) that ensure fair market participation. It uses a two-step latent class analysis on data from a farm survey to explore and classify farmer–cheesemaker SCAs based on their perceived characteristics, farmers’ satisfaction, availability of alternative options and farmers’ sustainability objectives. Results highlight the importance of collective arrangements, economic incentives and price formulation mechanisms in forming farmer-inclusive SCAs.
Prospects for strangeness measurement in ALICE
Creators: name: Vernet, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The study of strangeness production at LHC will bring significant information on the bulk chemical properties, its dynamics and the hadronisation mechanisms involved at these energies. The ALICE experiment will measure strange particles from topology (secondary vertices) and from resonance decays over a wide range in transverse momentum and shed light on this new QCD regime. These motivations will be presented as well as the identification performance of ALICE for strange hadrons.
description: 12 pages, 11 figures Proceedings of the Workshop on Relativistic Nuclear Physics (WRNP) 2007, Kiev, Ukraine Conference Info: http://wrnp2007.bitp.kiev.ua/ Submitted to "Physics of Atomic Nuclei"
Structure and kinematics of shocked gas in Sgr B2: further evidence of a cloud-cloud collision from SiO emission maps
Creators: name: Armijos-Abendaño, Jairo
name: Banda-Barragán, Wladimir
name: Martín-Pintado, Jesús
name: Dénes, Helga
name: Federrath, Christoph
name: Requena-Torres, Miguel A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present SiO J=2-1 maps of the Sgr B2 molecular cloud, which show shocked gas with a turbulent substructure comprising at least three cavities at velocities of [10,40] km s$^{-1}$ and an arc at velocities of [-20,10] km s$^{-1}$. The spatial anti-correlation of shocked gas at low and high velocities, and the presence of bridging features in position-velocity diagrams suggest that these structures formed in a cloud-cloud collision. Some of the known compact HII regions spatially overlap with sites of strong SiO emission at velocities of [40,85] km s$^{-1}$, and are between or along the edges of SiO gas features at [100,120] km s$^{-1}$, suggesting that the stars responsible for ionizing the compact HII regions formed in compressed gas due to this collision. We find gas densities and kinetic temperatures of the order of $n_{\rm H_2}\sim 10^5\rm cm^{-3}$ and $\sim$30 K, respectively, towards three positions of Sgr B2. The average values of the SiO relative abundances, integrated line intensities, and line widths are $\sim$10$^{-9}$, $\sim$11 K km s$^{-1}$, and $\sim$31 km s$^{-1}$, respectively. These values agree with those obtained with chemical models that mimic grain sputtering by C-type shocks. A comparison of our observations with hydrodynamical simulations shows that a cloud-cloud collision that took place $\lesssim$ 0.5 Myr ago can explain the density distribution with a mean column density of $\bar{N}_{\rm H_2}\gtrsim 5\times10^{22}$ cm$^{-2}$, and the morphology and kinematics of shocked gas in different velocity channels. Colliding clouds are efficient at producing internal shocks with velocities $\sim$5-50 km $s^{-1}$. High-velocity shocks are produced during the early stages of the collision and can readily ignite star formation, while moderate- and low-velocity shocks are important over longer timescales and can explain the widespread SiO emission in Sgr B2.
description: Accepted for publication in MNRAS. 22 pages, 17 figures. Movies of the simulations can be found here: https://tinyurl.com/y5bc3smn
การพัฒนาการให้บริการของสำนักงานบัญชีต่อผู้ประกอบการธุรกิจขนาดกลางและขนาดย่อมในเขตกรุงเทพมหานคร
Creators: name: อังคณา นุตยกุล
name: พยอม วงศ์สารศรี
name: วรรณวิภา จัตุชัย
name: จักรวุฒิ ชอบพิเชียร
Publisher: name: วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Year: 2551
Subjects: การให้บริการ,สำนักงานบัญชี,ผู้ประกอบการธุรกิจขนาดกลางและขนาดย่อม,กรุงเทพมหานคร

description: 3, 4, วารสารวิจัย มสด สาขามนุษยศาสตร์และสังคมศาสตร์
Ferroelectricity in epitaxially strained rhombohedral ZrO2 thin films
Creators: name: Silva, J. P. B.
name: Negrea, R. F.
name: Istrate, M. C.
name: Dutta, S.
name: Aramberri, H.
name: Íñiguez, J.
name: Figueiras, F. G.
name: Ghica, C.
name: Sekhar, K. C.
name: Kholkin, A. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Zirconia and hafnia based thin films have attracted tremendous attention in the last decade due to their unexpected ferroelectric behavior at the nanoscale, which facilitates the downscaling of ferroelectric devices. The present work reports a novel ferroelectric rhombohedral phase of ZrO2 that can be achieved in thin films grown on (111)- Nb:SrTiO3 substrates by ion-beam sputtering. Structural and ferroelectric characterizations reveal that the (111)-oriented ZrO2 films are under epitaxial compressive strain and display a switchable ferroelectric polarization of about 20.2 μC/cm2 with a coercive field of 1.5 MV/cm. Moreover, the time dependent polarization reversal characteristics of Nb:STO/ZrO2/Au film capacitors exhibit bell-shape curves, a typical feature of ferroelectric films associated with domains reversal. The estimated activation field is comparable to the coercive field obtained from polarization-electric field hysteresis loops. Interestingly, the studied films show ferroelectric behavior per se, i.e., there is no need to apply the wake-up cycle that is essential to induce ferroelectricity in the conventional (orthorhombic) ferroelectric phase of ZrO2. Therefore, the present films have a technologically advantage over the previously studied ferroelectric ZrO2 films, and may be attractive for nanoscale ferroelectric devices.
description: 26 pages, 9 figures
Toward a New Geometric Distance to the Active Galaxy NGC4258: I. VLBI Monitoring of Water Maser Emission
Creators: name: Argon, A. L.
name: Greenhill, L. J.
name: Reid, M. J.
name: Moran, J. M.
name: Humphreys, E. M. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report a three year, 18 epoch, VLBI monitoring study of H2O masers in the sub-parsec, warped, accretion disk within the NGC4258 AGN. Our immediate goals are to trace the geometry of the underlying disk, track rotation via measurement of proper motion, and ascertain the radii of masers for which centripetal acceleration may be measured separately. The monitoring includes ~ 4 times as many epochs, ~ 3 times denser sampling, and tighter control over sources of systematic error than earlier VLBI investigations. Coverage of a ~ 2400 km/s bandwidth has also enabled mapping of molecular material ~ 30% closer to the black hole than accomplished previously, which will strengthen geometric and dynamical disk models. Through repeated observation we have also measured for the first time a 5 microarsecond (1 sigma) thickness of the maser medium. Assuming this corresponds to the thickness of the accretion disk, hydrostatic equilibrium requires a disk plane temperature of ~ 600 K. Our long-term goal is a geometric distance to NGC4258 that is accurate to ~ 3%, a ~ 2 times improvement over the current best estimate. A geometric estimate of distance can be compared to distances obtained from analysis of Cepheid light curves, with the intent to recalibrate the extragalactic distance scale with reduced systematic uncertainties. This is the first paper in a series. We present here VLBI observations, data reduction, and temporal and spatial characteristics of the maser emission. Later papers will report estimation of orbital acceleration and proper motion, modeling of disk 3-D geometry and dynamics, and estimation of a "maser distance." Estimation of a "Cepheid distance" is presented in a parallel paper series.
description: 22 pages, 16 figures
Deep Generative Model for Efficient 3D Airfoil Parameterization and Generation
Creators: name: Chen, Wei
name: Ramamurthy, Arun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: In aerodynamic shape optimization, the convergence and computational cost are greatly affected by the representation capacity and compactness of the design space. Previous research has demonstrated that using a deep generative model to parameterize two-dimensional (2D) airfoils achieves high representation capacity/compactness, which significantly benefits shape optimization. In this paper, we propose a deep generative model, Free-Form Deformation Generative Adversarial Networks (FFD-GAN), that provides an efficient parameterization for three-dimensional (3D) aerodynamic/hydrodynamic shapes like aircraft wings, turbine blades, car bodies, and hulls. The learned model maps a compact set of design variables to 3D surface points representing the shape. We ensure the surface smoothness and continuity of generated geometries by incorporating an FFD layer into the generative model. We demonstrate FFD-GAN's performance using a wing shape design example. The results show that FFD-GAN can generate realistic designs and form a reasonable parameterization. We further demonstrate FFD-GAN's high representation compactness and capacity by testing its design space coverage, the feasibility ratio of the design space, and its performance in design optimization. We demonstrate that over 94% feasibility ratio is achieved among wings randomly generated by the FFD-GAN, while FFD and B-spline only achieve less than 31%. We also show that the FFD-GAN leads to an order of magnitude faster convergence in a wing shape optimization problem, compared to the FFD and the B-spline parameterizations.
Μελέτη των τοπικών οινοποιήσιμων ποικιλιών αμπέλου της Θράκης Ζουμιάτικο, Καρναχαλάς και Μπουγιαλαμάς, για την παραγωγή οίνων ποιότητας.:
Creators: name: Παπαδοπούλου, Αναστασία Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Ζουμιάτικο
Καρναχαλάς
Μπουγιαλαμάς
Zoumiatiko
Karnachalas
Mpougialamas

description: Ο σκοπός αυτής της διατριβής ήταν να μελετήσει τρεις γηγενείς θρακιώτικες ποικιλίες και να προσδιορίσει την ικανότητα ή την αδυναμία των ποικιλιών αυτών, να δώσουν οίνους υψηλής ποιότητας. Οι ποικιλίες αυτές είναι ο Καρναχαλάς, ο Μπουγιαλαμάς (ερυθρές ποικιλίες από την περιοχή του Σουφλίου) και το Ζουμιάτικο (λευκή ποικιλία από την περιοχή της Αλεξανδρούπολης). Εφαρμόσθηκαν τέσσερις τεχνικές οινοποίησης. Η κλασσική ερυθρή οινοποίηση, η κρυοεκχύλιση, η κλασσική λευκή οινοποίηση και η προζυμωτική εκχύλιση. Στην συνέχεια πραγματοποιήθηκαν ορισμένες χημικές αναλύσεις στους τελικούς οίνους καθώς και μετρήσεις των φαινολικών χαρακτηριστικών τους. Τέλος πραγματοποιήθηκαν από έξι έμπειρους δοκιμαστές δύο οργανοληπτικές αξιολογήσεις, η πρώτη σε νέους οίνους και η δεύτερη σε οίνους παλαίωσης είκοσι μηνών. Ακολούθησε η στατιστική επεξεργασία των αποτελεσμάτων από την οποία προέκυψαν σημαντικές στατιστικώς διαφορές μεταξύ των τεχνικών οινοποίησης.
description: The aim of this thesis was to study three indigenous Thracians varieties and to determine the capability or the weakness of these varieties, to produce wines of high quality. These varieties are Karnachalas, Mpougialamas (red varieties from the region of Soufli) and Zoumiatiko (white variety from the region of Alexandroupoli). There were applied four techniques of vinification. The classic red vinification, the skin contact, the classic white vinification and the kryoextration. Then certain chemical analyses were carried out in the final products of wines as well as measurements of their phenolic characteristics. Finally, six experienced testers conducted two organ receiving evaluations, first in fresh wines and second in twenty months’ old wines. At the end data procession was carried out. As a result, there were statistically important differences between the techniques of vinification.
Deconstructing cluster identity: place branding and trademarking by cluster organizations
Creators: name: Grimbert, Stephanie Francis
name: Zabala-Iturriagagoitia, Jon Mikel
name: Pesme, Jacques-Olivier
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: The paper defines ‘cluster identity’ as an intangible attribute of clusters comprised of place branding and trademarking by cluster organizations, respectively anchored in a ‘logic of belonging’ and a ‘logic of similarity’. We expand the taxonomy of proximities and their dynamics according to their belonging/similarity logic and their tangible/intangible nature. As illustrated in the context of the Bordeaux wine region of France, we find that a prevailing logic of belonging leads to reputational inertia. We propose that trademarking by cluster organizations can facilitate the adaptation of cluster identity, thereby emphasizing its potential as an instrument for cluster managers to engage in community-building.