cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tensor Renormalization Group: Local Magnetizations, Correlation Functions, and Phase Diagrams of Systems with Quenched Randomness
Creators: name: Güven, Can
name: Hinczewski, Michael
name: Berker, A. Nihat
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The tensor renormalization-group method, developed by Levin and Nave, brings systematic improvability to the position-space renormalization-group method and yields essentially exact results for phase diagrams and entire thermodynamic functions. The method, previously used on systems with no quenched randomness, is extended in this study to systems with quenched randomness. Local magnetizations and correlation functions as a function of spin separation are calculated as tensor products subject to renormalization-group transformation. Phase diagrams are extracted from the long-distance behavior of the correlation functions. The approach is illustrated with the quenched bond-diluted Ising model on the triangular lattice. An accurate phase diagram is obtained in temperature and bond-dilution probability, for the entire temperature range down to the percolation threshold at zero temperature.
description: Added comment. Published version. 8 pages, 7 figures, 1 table
สื่อมวลชนประเทศเมียนมาร์
Creators: name: สิงห์ สิงห์ขจร
Publisher: name: โรงพิมพ์มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2560
Subjects: สถานการณ์
สื่อมวลชน
ประเทศเมียนมาร์

description: วารสารวิชาการ คณะวิทยาการจัดการ, 2, 4, 83-87
A year "off" : how mothers challenge and conform to gender on maternity leave
Creators: name: Dengate, Jennifer Lynn
Publisher: name: University of British Columbia
Year: 2017

description: What actually happens on maternity leave? Leave involves long-term employment interruption but do new mothers completely trade career for caregiving? Moreover, what happens if they do? Using longitudinal interviews, this research investigates the influence of Canadian mothers’ jobs on their leave and return-to-work experiences. Intensive mothering dominates mothers’ leave experience. Successfully “doing” leave, according to gendered cultural notions of proper maternal behaviour, means mothers are responsible for the baby at all times and put babies’ needs first. However, this research finds that Canadian mothers construct their leaves in response to the pressures of both intensive mothering ideology and ideal worker norms that demand consistent career attachment. Efforts to resolve the emerging tension between caregiving and career produces a variety of leave and return-to-work approaches. Mothers’ unique job context dictates the degree to which they experience ideal worker pressure and, as a result, the extent to which they can detach from their careers. Mothers who strongly detach from their jobs are more likely to experience work anxiety, diminished professional confidence, and skill stagnation. Those remaining strongly attached experience insufficient caregiving time. Regardless of degree of work attachment, inflexible returns to full-time work increase work-family conflict, often resulting in job-specific concessions to preserve caregiving time. Mothers who cut-back on job duties or hours to preserve caregiving time may risk wage and achievement penalties after leave. In contrast, mothers integrating a moderate degree of professional activity with caregiving, both on leave and during the return-to-work transition, the report the most work-family balance. The benefits associated with moderate integration of career and caregiving are contingent upon mothers’ ability to control the nature of their career attachment. However, the extent of new mothers’ work activity is largely determined by their jobs and fathers’ participation in caregiving. As such, only some have the opportunity to challenge intensive mothering after childbirth, should they require an alternative work-family approach.
Electromagnetic Torus Knots
Creators: name: Arrayás, Manuel
name: Trueba, José L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a new range of solutions of the Maxwell equations in vacuum in which the topology of the field lines is that of the whole torus knots set. Knotted electromagnetic fields are solutions of the Maxwell equations in vacuum in which magnetic lines, and also electric lines, have some kind of linkage. These solutions may play an important role in fundamental physics problems from the stability of field configurations, such as plasma confinement, to coding information.
description: 8 pages, 27 figures
Améliorer la valorisation des données du patrimoine culturel grâce au Linked Open Usable Data (LOUD)
Creators: name: Raemy, Julien A.
Publisher: name: Zenodo
Year: 2022
Subjects: IIIF
Linked Art
Linked Open Usable Data
Web Annotation Data Model
LOD
Cultural heritage
Participatory Knowledge Practices in Analogue and Digital Image Archives
LOUD

description: La réutilisabilité, et a fortiori la valorisation, des données ouvertes liées (LOD - Linked Open Data) dans les humanités numériques peut grandement être améliorée en appliquant les principes de conception du Linked Open Usable Data (LOUD) et des standards qui en sont conformes que sont l’API Présentation 3.0 du « cadre international d’interopérabilité des images » (IIIF - International Image Interoperability Framework), le W3C Web Annotation Data Model (WADM) ainsi que Linked Art, un profil RDF de CIDOC-CRM qui recourt à JSON-LD et aux vocabulaires Getty. Les diverses organisations qui ont mis à profit ces spécifications, autant des solutions techniques que sociales, ont largement contribué à la valorisation des données du patrimoine culturel et ont ouvert de nouvelles possibilités aux utilisateurs, en particulier en répondant aussi bien aux besoins de la communauté scientifique qu’à ceux des développeurs de logiciels. A titre d’exemple, le projet de recherche « Pratiques de connaissance participatives dans les archives d’images analogiques et numériques » (PIA) est présenté. Celui-ci souhaite tirer parti de IIIF, WADM et Linked Art au sein du modèle de données dans le cadre d’une initiative de science citoyenne axée sur trois collections des archives photographiques de la société suisse des traditions populaires (SSTP). Grâce à ce socle technologique mettant en pratique le LOUD, PIA permettra ainsi une utilisation participative des archives offrant des possibilités aux différents publics cibles de contextualiser, relier, contraster et annoter les images et leurs métadonnées associées.
description: This is a presentation of a published paper.
Moyal multiplier algebras of the test function spaces of type S
Creators: name: Soloviev, Michael A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Functional Analysis (math.FA)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 53D55, 81S30, 81T05, 46L52(Primary) 46F10, 46F15, 46N50 (Secondary)

description: The Gel'fand-Shilov spaces of type S are considered as topological algebras with respect to the Moyal star product and their corresponding algebras of multipliers are defined and investigated. In contrast to the well-studied case of Schwartz's space S, these multipliers are allowed to have nonpolynomial growth or infinite order singularities. The Moyal multiplication is thereby extended to certain classes of ultradistributions, hyperfunctions, and analytic functionals. The main theorem of the paper characterizes those elements of the dual of a given test function space that are the Moyal multipliers of this space. The smallest nontrivial Fourier-invariant space in the scale of S-type spaces is shown to play a special role, because its corresponding Moyal multiplier algebra contains the largest algebra of functions for which the power series defining their star products are absolutely convergent. Furthermore, it contains analogous algebras associated with cone-shaped regions, which can be used to formulate a causality condition in quantum field theory on noncommutative space-time.
description: AMS-LaTeX, 23 pages, v2: minor changes to agree with published version, references added and updated, typos corrected
Functional Renormalization of Noncommutative Scalar Field Theory
Creators: name: Koslowski, Tim A.
name: Sfondrini, Alessandro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we apply the Functional Renormalization Group Equation (FRGE) to the non-commutative scalar field theory proposed by Grosse and Wulkenhaar. We derive the flow equation in the matrix representation and discuss the theory space for the self-dual model. The features introduced by the external dimensionful scale provided by the non-commutativity parameter, originally pointed out in \cite{Gurau:2009ni}, are discussed in the FRGE context. Using a technical assumption, but without resorting to any truncation, it is then shown that the theory is asymptotically safe for suitably small values of the $ϕ^4$ coupling, recovering the result of \cite{disertori:2007}. Finally, we show how the FRGE can be easily used to compute the one loop beta-functions of the duality covariant model.
description: 38 pages, no figures, LaTeX
Diffusion-annihilation proecesses in weighted scale-free networks with identical degree sequence
Creators: name: Zhang, Yichao
name: Guan, Jihong
name: Zhang, Zhongzhi
name: Zhou, Shi
name: Zhou, Shuigeng
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The studies based on $A+A \rightarrow \emptyset$ and $A+B\rightarrow \emptyset$ diffusion-annihilation processes have so far been studied on weighted uncorrelated scale-free networks and fractal scale-free networks. In the previous reports, it is widely accepted that the segregation of particles in the processes is introduced by the fractal structure. In this paper, we study these processes on a family of weighted scale-free networks with identical degree sequence. We find that the depletion zone and segregation are essentially caused by the disassortative mixing, namely, high-degree nodes tend to connect with low-degree nodes. Their influence on the processes is governed by the correlation between the weight and degree. Our finding suggests both the weight and degree distribution don't suffice to characterize the diffusion-annihilation processes on weighted scale-free networks.
description: 15 pages, 10 figures
Primakoff production of $π^0$, $η$ and $η'$ in the Coulomb field of a nucleus
Creators: name: Kaskulov, Murat M.
name: Mosel, Ulrich
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Photoproduction of neutral pseudoscalar mesons $π^0,η(547)$ and $η'(958)$ in the Coulomb field of an atomic nucleus is studied using a model which describes the Primakoff and nuclear parts of the production amplitude. At high energies the nuclear background is dominated by the exchange of $C$-parity odd Regge trajectories. In the coherent production the isospin filtering makes the $ω(782)$ a dominant trajectory. The calculations are in agreement with $π^0$ data from JLAB provided the photon shadowing and final state interactions of mesons are taken into account. The kinematic conditions which allow to study the Primakoff effect in $η$ and $η'$ photoproduction off nuclei are further discussed. We also give predictions for the higher energies available at the JLAB upgrade.
description: 15 pages, 14 figures, discussion added, final version to be published in Phys. Rev. C
Deterioration Problems of Ankara Castle Andesites: Weathering, Case Study, Conservation and Restoration
Creators: name: Tokmak, Musa
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology

description: The book aimed to identify deterioration problems, repair and conservation needs of andesites on the walls of the Ankara Castle. Decay forms of walls were documented by visual examination. Samples taken from the surface of the weathered andesites were examined for their basic physical, mechanical compositional and minerological properties. The bulk density and total porosity were determined as basic physical properties. The mechanical properties were expressed as ultrasonic velocity and modulus of elasticity (Emod). Compositional and mineralogical properties were determined by optical microscopy and XRD analyses. Soluble salt content of the andesite samples was determined by spot tests of anions and electrical conductivity measurements. Findings were evaluated in terms of the long-term weathering behaviour of andesites under the effect of the prevailing climate, air pollution problems of Ankara, dampness problems of the structure, previous repairs with incompatible cement mortars. The surfaces of Ankara Castle andesite blocks were heavily weathered. The results were compared with the physical and mechanical properties of fresh andesites from Gölbaşı- Ankara quarry. The surface of the andesite blocks at the Ankara Castle, had low bulk density and high porosity, low ultrasonic velocity and low Emod values. Thin section and XRD analyses supported those results by revealing the presence of physical and chemical weathering on feldspars and other main minerals of andesite, as well as the presence of amorphous minerals at the surface. ANAHTAR KELİMELER:stone deterioration,salt,decay,stone deterioration patterns,glossary,crack,fissures,alteration,deformation,blistering, bursting,delimanation,fracture,star crack,hair crack,splitting,coving,erosion,mechanical damage,alveolization,loss of components, loss of matrix,rounding,roughening,scratch,abrasion,keying,differential erosion,impact damage,cut,crust,black crust,slat crust,deposit, efflorescence,encrustation,concretion,moist area,bleaching,biological colonization,alga,crumbling,granular disintegration,powdering,chalking, sanding,sugaring,chipping,flaking,contour scalling,spalling,microkarst,missing part,performation,pitting,film,glossy aspect,graffiti,patina,iron rich patina, oxalate patina,soiling,subflorescence,lichen,moss,mould,plant,B. Fitzner, K. Heinrichs & R. Kownatzki,Biological colonization,Discoloration and deposit , Features induced by material loss,Crack and deformation,Termes généraux,Fissure
Integrating field and remote sensing approaches to evaluate ecosystem services from agriculture in smallholder landscapes
Creators: name: Kearney, Sean Patrick
Publisher: name: University of British Columbia
Year: 2017

description: Agriculture now covers over a third of the Earth’s terrestrial surface, and smallholder farmers alone manage over a billion hectares globally. As stewards of the land, smallholders do much more for human well-being than just harvest useful products. However, a conventionally narrow focus on productivity over the last half- century now threatens ecosystem health and long-term agricultural production, particularly as global climate change accelerates. Agroecological and ‘climate-smart’ agricultural (CSA) practices have been proposed to both mitigate climate change and build resilience by enhancing multiple ecosystem services (ES), and policies are emerging to incentivize the adoption of such practices. In order to (1) better understand how agroecological and CSA management alternatives impact multiple ES, and (2) contribute to operationalizing monitoring of ES in smallholder landscapes, I present research from El Salvador combining field methods and remote sensing analysis to evaluate multiple ES. Using data from on-farm field trials, I developed composite ES indices to demonstrate distinct benefits and synergies among multiple ES from agroforestry and, to a lesser extent, organic management (i.e., CSA) compared to conventional management. I also identified a subset of easy-to-measure field proxies that correlate well with multiple ES, and proposed an improved method to compare relative erosion resulting from different land management practices. At the landscape scale, I focused on emerging techniques to map aboveground woody biomass (AGWB) – a large terrestrial carbon sink and indicator of agroforestry management – using high-spatial-resolution satellite imagery and airborne laser scanning (ALS). I showed how satellite data could be used to quantify AGWB at the watershed to landscape scale with uncertainties of less than 5%, and suggest that a singular focus on plot-scale uncertainty limits the operationalization of satellite-based approaches to monitor AGWB. I also present a novel approach to using ALS that improves the accuracy of measuring AGWB in trees outside of forests (e.g., agroforestry, hedgerows) and apply it to show that these trees contain substantial AGWB within smallholder landscapes, further demonstrating the ES benefits of agroforestry. This dissertation contributes to designing simple and cost-effective monitoring strategies to help operationalize policies promoting management practices that enhance multiple ES in smallholder agriculture.
UIVNAV: Underwater Information-driven Vision-based Navigation via Imitation Learning
Creators: name: Lin, Xiaomin
name: Karapetyan, Nare
name: Joshi, Kaustubh
name: Liu, Tianchen
name: Chopra, Nikhil
name: Yu, Miao
name: Tokekar, Pratap
name: Aloimonos, Yiannis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Autonomous navigation in the underwater environment is challenging due to limited visibility, dynamic changes, and the lack of a cost-efficient accurate localization system. We introduce UIVNav, a novel end-to-end underwater navigation solution designed to drive robots over Objects of Interest (OOI) while avoiding obstacles, without relying on localization. UIVNav uses imitation learning and is inspired by the navigation strategies used by human divers who do not rely on localization. UIVNav consists of the following phases: (1) generating an intermediate representation (IR), and (2) training the navigation policy based on human-labeled IR. By training the navigation policy on IR instead of raw data, the second phase is domain-invariant -- the navigation policy does not need to be retrained if the domain or the OOI changes. We show this by deploying the same navigation policy for surveying two different OOIs, oyster and rock reefs, in two different domains, simulation, and a real pool. We compared our method with complete coverage and random walk methods which showed that our method is more efficient in gathering information for OOIs while also avoiding obstacles. The results show that UIVNav chooses to visit the areas with larger area sizes of oysters or rocks with no prior information about the environment or localization. Moreover, a robot using UIVNav compared to complete coverage method surveys on average 36% more oysters when traveling the same distances. We also demonstrate the feasibility of real-time deployment of UIVNavin pool experiments with BlueROV underwater robot for surveying a bed of oyster shells.
Unfolded Scalar Supermultiplet
Creators: name: Ponomarev, D. S.
name: Vasiliev, M. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Unfolded equations of motion for N = 1, D = 4 scalar supermultiplet are presented. We show how the superspace formulation emerges from the unfolded formulation. To analyze supersymmetric unfolded equations we extend the σ_-cohomology technics to the case with several operators σ_. The role of higher σ_-cohomology in the derivation of constraints is emphasized and illustrated by the example of scalar supermultiplet.
description: 27 pages, no figures; minor corrections: clarifications added, typos corrected
Spectrum of turbulent Kelvin-waves cascade in superfluid helium
Creators: name: Baggaley, Andrew W.
name: Barenghi, Carlo F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: To explain the observed decay of superfluid turbulence at very low temperature, it has been proposed that a cascade of Kelvin waves (analogous to the classical Kolmogorov cascade) transfers kinetic energy to length scales which are small enough that sound can be radiated away. We report results of numerical simulations of the interaction of quantized vortex filaments. We observe the development of the Kelvin-waves cascade, and compute the statistics of the curvature, the amplitude spectrum (which we compare with competing theories) and the fractal dimension.
description: 32 pages, 22 figures
Oscillators and relaxation phenomena in Pleistocene climate theory
Creators: name: Crucifix, Michel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Ice sheets appeared in the northern hemisphere around 3 million years ago and glacial-interglacial cycles have paced Earth's climate since then. Superimposed on these long glacial cycles comes an intricate pattern of millennial and sub-millennial variability, including Dansgaard-Oeschger and Heinrich events. There are numerous theories about theses oscillations. Here, we review a number of them in order to draw a parallel between climatic concepts and dynamical system concepts, including, in particular, the relaxation oscillator, excitability, slow-fast dynamics and homoclinic orbits. Namely, almost all theories of ice ages reviewed here feature a phenomenon of synchronisation between internal climate dynamics and the astronomical forcing. However, these theories differ in their bifurcation structure and this has an effect on the way the ice age phenomenon could grow 3 million years ago. All theories on rapid events reviewed here rely on the concept of a limit cycle in the ocean circulation, which may be excited by changes in the surface freshwater surface balance. The article also reviews basic effects of stochastic fluctuations on these models, including the phenomenon of phase dispersion, shortening of the limit cycle and stochastic resonance. It concludes with a more personal statement about the potential for inference with simple stochastic dynamical systems in palaeoclimate science. Keywords: palaeoclimates, dynamical systems, limit cycle, ice ages, Dansgaard-Oeschger events
description: Published in the Transactions of the Philosophical Transactions of the Royal Society (Series A, Physical Mathematical and Engineering Sciences), as a contribution to the Proceedings of the workshop on Stochastic Methods in Climate Modelling, Newton Institute (23-27 August). Philosophical Transactions of the Royal Society (Series A, Physical Mathematical and Engineering Sciences), vol. 370, pp. xx-xx (2012); Source codes available on request to author and on http://www.uclouvain.be/itop
Investigating tactile suppression during goal-directed movement
Creators: name: Manzone, Damian Matricciano
Publisher: name: University of British Columbia
Year: 2017

description: When we move our ability to detect tactile events on the moving limb is reduced. This process, known as movement-related tactile suppression, prevents unimportant sensory information from bombarding our central nervous system. This thesis aimed to extend the tenets of movement-related suppression during goal-directed reaching and explore any modulation of this suppression according to task-relevance. In three experiments participants performed volitional self-driven (Experiment 1, 3) and motor-driven (Experiment 1, 2) reaching and grasping movements. Over the course of the movement, weak electrical stimulation was presented at task-relevant (i.e., index finger and thumb) and task-irrelevant sites on the moving limb. In Experiment 1, participants displayed reduced detectability during movement of a readily detectable tactile stimulus (90% resting detection). This was true for all locations on the moving limb irrespective of task-relevance and during both self and motor-driven movements. In Experiment 2 and 3 a range of stimulus amplitudes was presented to one task relevant location during both self and motor-driven movements (Experiment 2) and to a task relevant and irrelevant site during self-driven movements (Experiment 3). This slight change in methodology allowed us to get a direct estimate of perceptual thresholds and asses the magnitude of movement-related tactile suppression. During both self and motor-driven movement participants exhibited an increased perceptual threshold at the index finger (Experiment 2). The magnitude of suppression however, was greater at the forearm than at the index finger (Experiment 3). Collectively these experiments suggest that tactile suppression is a general consequence of movement. Although evident at all locations on the moving limb, we suggest that tactile suppression can be modulated in a relevance-dependent manner.
$O(k)$-Equivariant Dimensionality Reduction on Stiefel Manifolds
Creators: name: Lee, Andrew
name: Lee, Harlin
name: Perea, Jose A.
name: Schonsheck, Nikolas
name: Weinstein, Madeleine
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Geometry (cs.CG)
subject: Machine Learning (cs.LG)
subject: Algebraic Topology (math.AT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 55-08, 68W99, 53Z50

description: Many real-world datasets live on high-dimensional Stiefel and Grassmannian manifolds, $V_k(\mathbb{R}^N)$ and $Gr(k, \mathbb{R}^N)$ respectively, and benefit from projection onto lower-dimensional Stiefel and Grassmannian manifolds. In this work, we propose an algorithm called \textit{Principal Stiefel Coordinates (PSC)} to reduce data dimensionality from $ V_k(\mathbb{R}^N)$ to $V_k(\mathbb{R}^n)$ in an \textit{$O(k)$-equivariant} manner ($k \leq n \ll N$). We begin by observing that each element $α\in V_n(\mathbb{R}^N)$ defines an isometric embedding of $V_k(\mathbb{R}^n)$ into $V_k(\mathbb{R}^N)$. Next, we describe two ways of finding a suitable embedding map $α$: one via an extension of principal component analysis ($α_{PCA}$), and one that further minimizes data fit error using gradient descent ($α_{GD}$). Then, we define a continuous and $O(k)$-equivariant map $π_α$ that acts as a "closest point operator" to project the data onto the image of $V_k(\mathbb{R}^n)$ in $V_k(\mathbb{R}^N)$ under the embedding determined by $α$, while minimizing distortion. Because this dimensionality reduction is $O(k)$-equivariant, these results extend to Grassmannian manifolds as well. Lastly, we show that $π_{α_{PCA}}$ globally minimizes projection error in a noiseless setting, while $π_{α_{GD}}$ achieves a meaningfully different and improved outcome when the data does not lie exactly on the image of a linearly embedded lower-dimensional Stiefel manifold as above. Multiple numerical experiments using synthetic and real-world data are performed.
description: Minor updates to introduction. To appear in SIAM Journal on Mathematics of Data Science
ความสามารถหลักของผู้บริหารในการจัดการสมัยใหม่
Creators: name: ธันวาพร วิมลชัยฤกษ์
Publisher: name: โรงพิมพ์มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2560
Subjects: ความสามารถหลัก
ผู้บริหาร
การจัดการสมัยใหม

description: วารสารวิชาการ คณะวิทยาการจัดการ, 2, 4, 89-99
บทวิจารณ์หนังสือ เศรษฐกิจเชิงสร้างสรรค์ ของ สมบัติ กุสุมาวลี สมบัติ กุสุมาวลี เศรษฐกิจเชิงสร้างสรรค์ (Creative Economy)
Creators: name: ธนัณชัย สิงห์มาตย์
Publisher: name: โรงพิมพ์มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2560
Subjects: เศรษฐกิจเชิงสร้างสรรค์

description: วารสารวิชาการ คณะวิทยาการจัดการ, 2, 4, 101-103
Competing orders in the Dirac-like electronic structure and the non-linear sigma model with the topological terms
Creators: name: Ghaemi, Pouyan
name: Ryu, Shinsei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The Dirac-like electronic structure can host a large number of competing orders in the form of mass terms. In particular, two different order parameters can be said to be dual to each other, when a static defect in one of them traps a quantum number (or "charge") of the other. We discuss that such complementary nature of the pair of the order parameters shows up in their correlation functions and dynamical properties when a quantum phase transition is driven by fluctuations of the one of the order parameters. Approaching the transition from the disordered (paramagnetic) side, the order parameter correlation function at the critical point is reduced, while such fluctuations enhance the correlation of the dual order parameter. Such complementary behaviors in the correlation function can be used to diagnose the nature of quantum fluctuations that is the driving force of the quantum phase transition.
description: 10 pages, 5 figures
Periodic points of birational maps on projective surfaces
Creators: name: Xie, Junyi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We classify birational maps of projective smooth surfaces whose non-critical periodic points are Zariski dense. In particular, we show that if the first dynamical degree is greater than one, then the periodic points are Zariski dense.
description: 30 pages
Вестник Кольского научного центра РАН, Выпуск 32018
Creators: name: Кольский научный центр Российской академии наук
Publisher: name: Вестник Кольского научного центра РАН
Year: 2018

description: , Выпуск 32018
description: Журнал посвящен решению проблем, связанных с фундаментальными и прикладными аспектами переработки комплексного минерального сырья, металлургическими и гидрометаллургическими процессами получения новых функциональных материалов различного назначения, методами исследования и применения материалов, утилизации отходов переработки минерального сырья, экономики и экологии новых технологических процессов, аналитического обеспечения исследований. Журнал адресован специалистам в данных областях.
Vacuum Rabi oscillation in nonzero-temperature open cavity
Creators: name: Stefańska, Patrycja
name: Wilczewski, Marcin
name: Czachor, Marek
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Comparison of theory of Rabi oscillations with experiment [M. Wilczewski and M. Czachor, Phys. Rev. A {\bf 79}, 033836 (2009)] suggests that cavity lifetime parameters obtained in measurements with many photons may be much smaller than those applicable to almost vacuum states of light. In this context we show that the conclusion remains unchanged even if one takes a more realistic description of the initial state of light in cavity.
description: LaTeX, 6 pages, 4 figures
Super-resolution in map-making based on a physical instrument model and regularized inversion. Application to SPIRE/Herschel
Creators: name: Orieux, F.
name: Giovannelli, J. -F.
name: Rodet, T.
name: Abergel, A.
name: Ayasso, H.
name: Husson, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We investigate super-resolution methods for image reconstruction from data provided by a family of scanning instruments like the Herschel observatory. To do this, we constructed a model of the instrument that faithfully reflects the physical reality, accurately taking the acquisition process into account to explain the data in a reliable manner. The inversion, ie the image reconstruction process, is based on a linear approach resulting from a quadratic regularized criterion and numerical optimization tools. The application concerns the reconstruction of maps for the SPIRE instrument of the Herschel observatory. The numerical evaluation uses simulated and real data to compare the standard tool (coaddition) and the proposed method. The inversion approach is capable to restore spatial frequencies over a bandwidth four times that possible with coaddition and thus to correctly show details invisible on standard maps. The approach is also applied to real data with significant improvement in spatial resolution.
description: Astronomy & Astrophysics
PI3Kp110δ drives Crohn’s disease-like intestinal fibrosis in SHIP-/- mice
Creators: name: Lo, Young
Publisher: name: University of British Columbia
Year: 2019

description: Crohn’s disease (CD) is an immune-mediated disease characterized by inflammation along the gastrointestinal tract. One in 3 people with CD will develop intestinal fibrosis requiring surgery within 10 years of diagnosis. Despite that, there are no treatments that target intestinal fibrosis directly. Our laboratory reported that mice deficient in the Src homology 2 domain-containing inositol polyphosphate 5´-phosphatase (SHIP-/-) develop spontaneous CD-like intestinal inflammation with arginase-dependent fibrosis. We also reported that increased arginase I activity in SHIP-/- macrophages was dependent on increased Class IA phosphatidylinositol 3-kinase (PI3K) p110δ activity. Based on this, we hypothesized that SHIP-/- mice develop fibrosis due to increased PI3Kp110δ activity. SHIP-/- mice were crossed with mice deficient in PI3Kp110δ activity (PI3Kp110δDA/DA). SHIP-/- PI3Kp110δDA/DA mice have reduced intestinal fibrosis compared to their SHIP-/- littermates including: reduced muscle thickening, vimentin+ mesenchymal cells, collagen deposition, arginase activity, and IL-4 levels. SHIP-/- mice were also treated with a PI3Kp110δ isoform-specific inhibitor, IC87114. Pharmacological inhibition of PI3Kp110δ activity also reduced the above parameters that are associated with intestinal fibrosis in SHIP-/- mice. Surprisingly, PI3Kp110δ deficiency or inhibition also reduced ileal inflammation and IL-1β production in the SHIP-/- ileum suggesting that PI3Kp110δ, and/or fibrosis itself, may contribute directly to inflammation. Our data suggest that SHIP-/- mice develop intestinal fibrosis that is driven by PI3Kp110δ activity. Moreover, targeting PI3Kp110δ activity may be an effective strategy to reduce intestinal fibrosis in people with CD. Importantly, there are PI3Kp110δ isoform-specific inhibitors already licensed for use in people with certain leukemias and lymphomas, so this research may be rapidly translatable into an effective therapy for intestinal fibrosis in people with CD.
Spinning-particle model for the Dirac equation and the relativistic Zitterbewegung
Creators: name: Deriglazov, A. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct the relativistic particle model without Grassmann variables which meets the following requirements. A) Canonical quantization of the model implies the Dirac equation. B) The variable which experiences {\it Zitterbewegung}, represents a gauge non-invariant variable in our model. Hence our particle does not experiences the undesirable {\it Zitterbewegung}. C) In the nonrelativistic limit spin is described by three-vector, as it could be expected.
description: 6 pages, misprints corrected
Addressing Menstrual Stigma: The Case for Implementing Menstrual Leave as A Legal Provision In India
Creators: name: G, Bhaghamma
Publisher: name: figshare
Year: 2023
Subjects: Aboriginal and Torres Strait Islander customary law

description: This paper explores the need for a legal provision for menstrual leave in India to address the stigma surrounding menstruation and promote gender equality in the workplace and society. Menstrual leave refers to a policy that allows women to take time off from work or school during their menstrual cycles. While some companies in India have voluntarily introduced menstrual leave policies, there is no legal provision for it yet. The paper argues that a legal provision for menstrual leave is necessary to ensure that women are not discriminated against in the workplace and have the right to take time off during their menstrual cycles. However, the paper also acknowledges concerns about the implementation of menstrual leave policies and suggests that the policy should be carefully crafted, with proper guidelines for its implementation, to address concerns about its misuse and promote gender neutrality. Ultimately, the paper concludes that implementing a legal provision for menstrual leave in India is crucial for addressing menstrual stigma and promoting gender equality in the workplace and society.
Scalable Acceleration for Classification-Based Derivative-Free Optimization
Creators: name: Han, Tianyi
name: Li, Jingya
name: Guo, Zhipeng
name: Jin, Yuan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Derivative-free optimization algorithms play an important role in scientific and engineering design optimization problems, especially when derivative information is not accessible. In this paper, we study the framework of sequential classification-based derivative-free optimization algorithms. By introducing learning theoretic concept hypothesis-target shattering rate, we revisit the computational complexity upper bound of SRACOS (Hu, Qian, and Yu 2017). Inspired by the revisited upper bound, we propose an algorithm named RACE-CARS, which adds a random region-shrinking step compared with SRACOS. We further establish theorems showing the acceleration by region shrinking. Experiments on the synthetic functions as well as black-box tuning for language-model-as-a-service demonstrate empirically the efficiency of RACE-CARS. An ablation experiment on the introduced hyperparameters is also conducted, revealing the mechanism of RACE-CARS and putting forward an empirical hyper-parameter tuning guidance.
ADDRESSING MENSTRUAL STIGMA: THE CASE FOR IMPLEMENTING MENSTRUAL LEAVE AS A LEGAL PROVISION IN INDIA
Creators: name: G, Bhaghamma
Publisher: name: figshare
Year: 2023
Subjects: Aboriginal and Torres Strait Islander customary law

description: This paper explores the need for a legal provision for menstrual leave in India to address the stigma surrounding menstruation and promote gender equality in the workplace and society. Menstrual leave refers to a policy that allows women to take time off from work or school during their menstrual cycles. While some companies in India have voluntarily introduced menstrual leave policies, there is no legal provision for it yet. The paper argues that a legal provision for menstrual leave is necessary to ensure that women are not discriminated against in the workplace and have the right to take time off during their menstrual cycles. However, the paper also acknowledges concerns about the implementation of menstrual leave policies and suggests that the policy should be carefully crafted, with proper guidelines for its implementation, to address concerns about its misuse and promote gender neutrality. Ultimately, the paper concludes that implementing a legal provision for menstrual leave in India is crucial for addressing menstrual stigma and promoting gender equality in the workplace and society.
Quantum quenches as classical critical films
Creators: name: Gambassi, Andrea
name: Calabrese, Pasquale
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the unitary time evolution of the order parameter of a quantum system after a sudden quench in the parameter driving the transition. By mapping the dynamics onto the imaginary time path-integral in a film geometry we derive the full mean-field non-equilibrium phase diagram for a one-component order parameter. The recently discovered non-equilibrium transition is identified with the shifted critical point in films and therefore it is generally expected to occur in more than one spatial dimension. We also find that anharmonic oscillations of the order parameter are a general feature of the mean-field quench dynamics.
description: 6 pages, 5 figures, published version with additional comments and extended discussion
Stau Kinks at the LHC
Creators: name: Asai, Shoji
name: Azuma, Yuya
name: Endo, Motoi
name: Hamaguchi, Koichi
name: Iwamoto, Sho
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The kink signature of charged tracks is predicted in some SUSY models, and it is very characteristic signal at collider experiments. We study the kink signature at LHC using two models, SUSY models with a gravitino LSP and a stau NLSP, and R-parity violating SUSY models with a stau (N)LSP. We find that a large number of kink events can be discovered in a wide range of the SUSY parameters, when the decay length is O(10-10^5)mm. Model discrimination by identifying the daughter particles of the kink tracks is also discussed.
description: 19 pages, 4 figures; Version published in JHEP; abstract refined, reference added and several minor corrections in text
Supplementary material 1 from Bee products in the prehistoric southern levant: evidence from the lipid organic record
Creators: name: Chasan, Rivka
name: Rosenberg, Danny
name: Klimscha, Florian
name: Beeri, Ron
name: Golan, Dor
name: Dayan, Ayelet
name: Galili, Ehud
name: Spiteri, Cynthianne
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: Overview of the sites investigated in this study that showed evidence for beeswax
Global Smooth Flows for the Compressible Euler-Maxwell System: Relaxation Case
Creators: name: Duan, Renjun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The Euler-Maxwell system as a hydrodynamic model for plasma physics to describe the dynamics of the compressible electrons in a constant charged non-moving ion background is studied. The global smooth flow with small amplitude is constructed in three space dimensions when the electron velocity relaxation is present. The speed of the electrons flow trending to uniform equilibrium is obtained. The pointwise behavior of solutions to the linearized homogeneous system in the frequency space is also investigated in detail.
description: 35 pages
ชมรมส่งเสริมสุขภาพจิตเด็กครอบครัวและวัฒนธรรมอิสาน : การจัดการทุน ทางสังคม แบบมีส่วนร่วมในการเลี้ยงลูกของวิชาชีพพยาบาล โรงพยาบาลพระศรีมหาโพธิ์ อ.เมือง จ.อุบลราชธานี
Creators: name: พิมพ์ชนก หาคำ
name: จุฑามาส ชมผา
name: วินัย จำปาอ่อน
Publisher: name: โรงพิมพ์มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2561
Subjects: กลุ่มช่วยเหลือกันเอง
ชมรมส่งเสริมสุขภาพจิตเด็กครอบครัว
วัฒนธรรมอิสาน

description: วารสารวิชาการ คณะวิทยาการจัดการ, 3, 5, Jul-13
Vector bundles of rank 2 computing Clifford indices
Creators: name: Lange, H.
name: Newstead, P. E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H60

description: Clifford indices of vector bundles on algebraic curves were introduced in a previous paper of the authors. In this paper we study bundles of rank 2 which compute these Clifford indices. This is of particular interest in the light of recently discovered counterexamples to a conjecture of Mercat.
description: Final version to appear in Communications in Algebra
Supplementary material 2 from Bee products in the prehistoric southern levant: evidence from the lipid organic record
Creators: name: Chasan, Rivka
name: Rosenberg, Danny
name: Klimscha, Florian
name: Beeri, Ron
name: Golan, Dor
name: Dayan, Ayelet
name: Galili, Ehud
name: Spiteri, Cynthianne
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: Additional TICs of the samples from Neve Yam, Tel Tsaf, Tel Bene Beraq (South) and Tsomet Shoket that were mentioned in the text
Particulate trace metals & iron availability to phytoplankton in a changing Arctic Ocean
Creators: name: Li, Jingxuan
Publisher: name: University of British Columbia
Year: 2017

description: This thesis, focusing on the Canadian Arctic Ocean, investigates the cycling of particulate trace metals, and the bioavailability of iron to phytoplankton in this rapidly changing ocean. Full depth profiles of particulate Al, Cd, Pb, P, V, Mn, Fe, Co, Cu, Zn and Ba were determined. Trace elements displayed various vertical distributions. Firstly, some elements had a strong lithogenic component (Al, Fe and V), and were characterized by a maximum at the surface. Indeed, their concentrations strongly correlated with each other across basins. Secondly, elements with a significant biogenic component (Cd and Cu) were characterized by a decrease in concentration with depth. Furthermore, preferential remineralization of P over Cd at shallow depths in numerous stations is reported. In some stations across basins, the molar ratio of particulate Cu and P approached a plateau at the meso- or bathy-pelagic zone, suggesting the presence of ammonium oxidizing archaea, which require Cu-dependent enzymes. Thirdly, Mn, a trace metal with a predominant redox cycle, showed a spike in concentration between 100-200 m, as well as a bottom enrichment. In the Canada Basin, we suggest interactions between the production of manganese oxide, cobalt oxide and barite by manganese oxidizing bacteria. The Arctic Ocean is experiencing the greatest decrease in seawater pH, as well as rapid ice melting which elevates light intensity in surface waters. To examine changes in Fe bioavailability to Arctic phytoplankton under a varying environment, two incubation experiments were conducted. After natural phytoplankton assemblages were acclimated to different light/CO2 treatments for one week, short-term Fe uptake assays were performed to assess the capability of phytoplankton to access Fe. Generally, Fe uptake capability was positively influenced by CO₂ level, and negatively impacted by light level in the incubations. These observations imply that high CO₂ has a significant negative effect on Fe bioavailability, while high light has a positive effect. Furthermore, when comparing future scenario (higher atmospheric CO₂ and underwater irradiance) with present-day conditions, the bioavailability of Fe to phytoplankton appeared to be similar.
Moments of the transmission eigenvalues, proper delay times and random matrix theory I
Creators: name: Mezzadri, F.
name: Simm, N. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences
subject: 15B52, 81V65

description: We develop a method to compute the moments of the eigenvalue densities of matrices in the Gaussian, Laguerre and Jacobi ensembles for all the symmetry classes beta = 1,2, 4 and finite matrix dimension n. The moments of the Jacobi ensembles have a physical interpretation as the moments of the transmission eigenvalues of an electron through a quantum dot with chaotic dynamics. For the Laguerre ensemble we also evaluate the finite n negative moments. Physically, they correspond to the moments of the proper delay times, which are the eigenvalues of the Wigner-Smith matrix. Our formulae are well suited to an asymptotic analysis as n -> infinity.
description: 33 pages, typos corrected