cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Maximum solutions of normalized Ricci flows on 4-manifolds
Creators: name: Fang, Fuquan
name: Zhang, Yuguang
name: Zhang, Zhenlei
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We consider maximum solution $g(t)$, $t\in [0, +\infty)$, to the normalized Ricci flow. Among other things, we prove that, if $(M, ω) $ is a smooth compact symplectic 4-manifold such that $b_2^+(M)>1$ and let $g(t),t\in[0,\infty)$, be a solution to (1.3) on $M$ whose Ricci curvature satisfies that $|\text{Ric}(g(t))|\leq 3$ and additionally $χ(M)=3 τ(M)>0$, then there exists an $m\in \mathbb{N}$, and a sequence of points $\{x_{j,k}\in M\}$, $j=1, ..., m$, satisfying that, by passing to a subsequence, $$(M, g(t_{k}+t), x_{1,k},..., x_{m,k}) \stackrel{d_{GH}}\longrightarrow (\coprod_{j=1}^m N_j, g_{\infty}, x_{1,\infty}, ...,, x_{m,\infty}),$$ $t\in [0, \infty)$, in the $m$-pointed Gromov-Hausdorff sense for any sequence $t_{k}\longrightarrow \infty$, where $(N_{j}, g_{\infty})$, $j=1,..., m$, are complete complex hyperbolic orbifolds of complex dimension 2 with at most finitely many isolated orbifold points. Moreover, the convergence is $C^{\infty}$ in the non-singular part of $\coprod_1^m N_{j}$ and $\text{Vol}_{g_{0}}(M)=\sum_{j=1}^{m}\text{Vol}_{g_{\infty}}(N_{j})$, where $χ(M)$ (resp. $τ(M)$) is the Euler characteristic (resp. signature) of $M$.
description: 23 pages
Selection of dominant multi-exciton transitions in disordered linear J-aggregates
Creators: name: Klugkist, J. A.
name: Malyshev, V. A.
name: Knoester, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that the third-order optical response of disordered linear J-aggregates can be calculated by considering only a limited number of transitions between (multi-) exciton states. We calculate the pump-probe absorption spectrum resulting from the truncated set of transitions and show that, apart from the blue wing of the induced absorption peak, it agrees well with the exact spectrum.
description: 8 pages, 2 figures, accepted to Journal of Luminescence
Forrester Clinical Science 2019.pdf
Creators: name: J. Forrester, Steven
name: Xu, Qian
name: Kikuchi, Daniel
name: Okwan-Duodu, Derick
name: Campos, Ana Carolina
name: Faidley, Elizabeth
name: Zhang, Guogang
name: Lassègue, Bernard
name: T. Sadikot, Ruxana
name: K. Griendling, Kathy
name: S. Hernandes, Marina
Publisher: name: Health Research Alliance
Year: 2019
Subjects: classificationCode: 310910
subject: Animal physiology - systems
classificationCode: 310199
subject: Biochemistry and cell biology not elsewhere classified

description: Acute respiratory distress syndrome (ARDS) in a deadly disease that can be brought onby endotoxins such as lipopolysaccharide (LPS). ARDS is characterized by vascular permeability,a severe inflammatory response, lung leukocyte infiltration, and resultant lungedema. Polymerase δ-interacting protein 2 (Poldip2) is a novel regulator of blood–brain barrierpermeability; however, its role in regulating lung permeability and vascular inflammationis unknown. Here, the role of Poldip2 in regulating vascular permeability and inflammationin a mouse model of ARDS was assessed. Heterozygous deletion of Poldip2 wasfound to reduce LPS-induced mortality within 20 h, lung inflammatory signaling, and leukocyteinfiltration. Moreover, reduced Poldip2-suppressed LP-induced vascular cell adhesionmolecule (VCAM)-1 induction, leukocyte recruitment, and mitochondrial reactive oxygenspecies (ROS) production in vitro. These data indicate that Poldip2 is an important regulatorof the debilitating consequences of ARDS, potentially through the regulation of mitochondrialROS-induced inflammatory signaling. Consequently, inhibition of Poldip2 may bea viable option for therapeutic discovery moving forward.
Phase separation and flux quantization in the doped quantum dimer model on the square and triangular lattices
Creators: name: Ralko, A.
name: Mila, F.
name: Poilblanc, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The doped two-dimensional quantum dimer model is investigated by numerical techniques on the square and triangular lattices, with significantly different results. On the square lattice, at small enough doping, there is always a phase separation between an insulating valence-bond solid and a uniform superfluid phase, whereas on the triangular lattice, doping leads directly to a uniform superfluid in a large portion of the RVB phase. Under an applied Aharonov-Bohm flux, the superfluid exhibits quantization in terms of half-flux quanta, consistent with Q=2e elementary charge quanta in transport properties.
description: 4 pages, 6 figures
Fundamental Differences Between Application of Basic Principles of Quantum Mechanics on Atomic and Higher Levels
Creators: name: Nikulov, Alexey
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Superconductivity is macroscopic quantum phenomenon. From force of habit most physicists pay no heed to a paradoxicality of this fact. Niels Bohr considered quantum mechanics as atomic physics and the paradoxical quantum principles may be admissible on this level. But they seem quite strange on the macroscopic level. In the last years some experts, A. J. Leggett and other, attract our attention to a contradiction between quantum mechanics and macroscopic realism. In this paper I try to draw reader's attention to some paradoxical consequences of the Bohr quantization on the macroscopic level.
description: 3 pages, 1 figure, the talk was presented at the Eighth International Symposium Frontiers of Fundamental Physics, Madrid, October 17-19, 2006
1I/'Oumuamua as an N2 ice fragment of an exo-Pluto surface: I. size and compositional constraints
Creators: name: Jackson, Alan P.
name: Desch, Steven J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The origin of the interstellar object 1I/'Oumuamua has defied explanation. We perform calculations of the non-gravitational acceleration that would be experienced by bodies composed of a range of different ices and demonstrate that a body composed of N2 ice would satisfy the available constraints on the non-gravitational acceleration, size and albedo, and lack of detectable emission of CO or CO2 or dust. We find that 'Oumuamua was small, with dimensions 45 m x 44 m x 7.5 m at the time of observation at 1.42 au from the Sun, with a high albedo of 0.64. This albedo is consistent with the N2 surfaces of bodies like Pluto and Triton. We estimate 'Oumuamua was ejected about 0.4-0.5 Gyr ago from a young stellar system, possibly in the Perseus arm. Objects like 'Oumuamua may directly probe the surface compositions of a hitherto-unobserved type of exoplanet: "exo-plutos". In a companion paper (Desch & Jackson, 2021) we demonstrate that dynamical instabilities like the one experienced by the Kuiper belt, in other stellar systems, plausibly could generate and eject large numbers of N2 ice fragments. 'Oumuamua may be the first sample of an exoplanet brought to us.
description: 24 pages, 3 figures, 2 tables. Accepted for publication in JGR: Planets. Code available at https://doi.org/10.5281/zenodo.45584
Streikforschung zum 19. und 20. Jahrhundert in der tschechoslowakischen Historiographie
Creators: name: Machačová, Jana
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Streikforschung zum 19. und 20. Jahrhundert in der tschechoslowakischen Historiographie" of MTS 23 (2000).
description: Moving the Social, Vol 23 (2000): Forschungen und Forschungsberichte
Early life history characteristics of Pacific herring, Clupea harengus pallasi Valenciennes 1847, in the Strait of Georgia, British Columbia : hydrodynamics, dispersal, and analysis of growth rates
Creators: name: Robinson, Shawn Michael Charles
Publisher: name: University of British Columbia
Year: 2010

description: Cohorts of larval Pacific herring, Clupea harengus pallasi Valenciennes 1847, were studied from hatch during the spring of 1985, 1986, and 1987 in the Strait of Georgia, British Columbia. The main objectives were to study the patterns in the larval dispersal process, to study a major spawning area for Pacific herring to determine whether this site may act as a nursery area for the resulting year-class, and to evaluate the current hypotheses concerning survival of the larval year-class for their applicability to Pacific herring. Results indicated a significant proportion of larval herring which hatched in Lambert Channel quickly dispersed into Baynes Sound, probably through a combination of tidal movements and wind driven surface currents. Baynes Sound was shown to be much more stable than Lambert Channel due to strong stratification through freshwater input and protection from wind mixing by the surrounding land masses which may also have resulted in an earlier spring plankton bloom. Baynes Sound also had significantly higher densities of microzooplankton important to the early feeding herring larvae than Lambert Channel and outside waters. The suite of potential predators was also different between the two channels with Baynes Sound having more hydromedusae and Lambert Channel having more chaetognaths and polychaetes. Analysis of larval growth rates using an RNA/DNA ratio technique on individuals from the yolk sac stage onwards indicated the larvae initially grew very slowly but, by postflexion were growing over 25 %•d⁻¹ in protein. Starvation did not appear to play an important role in mortality. The RNA/DNA ratio was demonstrated to be directly correlated with a morphometric condition factor Pacific herring larvae indicating it can also be used as a condition factor. There was a significant positive correlation between the mean protein growth rate measured with RNA/DNA ratios and the mean nauplii density. Feeding larvae in Baynes Sound were found to be growing faster than those in Lambert Channel suggesting Baynes Sound was being used as a nursery area. Analysis of otoliths suggested there was a significant increase in survival of larval herring having higher growth rates over as little as a 3-week period.
La littérature dialectale du pays noir dans la seconde moitié du XX siècle. Evolution et persistances
Creators: name: Landrecies, Jacques
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "La littérature dialectale du pays noir dans la seconde moitié du XX siècle. Evolution et persistances" of MTS 30 (2003).
description: Moving the Social, Vol 30 (2003): Strukturwandel aus vergleichender regionaler Perspektive nach 1945
Limit distributions and scaling functions
Creators: name: Richard, Christoph
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 05A15, 05A16

description: We discuss the asymptotic behaviour of models of lattice polygons, mainly on the square lattice. In particular, we focus on limiting area laws in the uniform perimeter ensemble where, for fixed perimeter, each polygon of a given area occurs with the same probability. We relate limit distributions to the scaling behaviour of the associated perimeter and area generating functions, thereby providing a geometric interpretation of scaling functions. To a major extent, this article is a pedagogic review of known results.
description: 54 pages, 2 figures; v2 updated and slightly expanded; v3 changes in some proofs; v4 slightly expanded
Probabilistic Robustness Analysis -- Risks, Complexity and Algorithms
Creators: name: Chen, Xinjia
name: Zhou, Kemin
name: Aravena, Jorge L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Applications (stat.AP)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: It is becoming increasingly apparent that probabilistic approaches can overcome conservatism and computational complexity of the classical worst-case deterministic framework and may lead to designs that are actually safer. In this paper we argue that a comprehensive probabilistic robustness analysis requires a detailed evaluation of the robustness function and we show that such evaluation can be performed with essentially any desired accuracy and confidence using algorithms with complexity linear in the dimension of the uncertainty space. Moreover, we show that the average memory requirements of such algorithms are absolutely bounded and well within the capabilities of today's computers. In addition to efficiency, our approach permits control over statistical sampling error and the error due to discretization of the uncertainty radius. For a specific level of tolerance of the discretization error, our techniques provide an efficiency improvement upon conventional methods which is inversely proportional to the accuracy level; i.e., our algorithms get better as the demands for accuracy increase.
description: 28 pages, 5 figures
Vocabulaire thématique
Creators: name: Friedemann, Peter
name: Piquet, Nathalie
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Vocabulaire thématique" of MTS 30 (2003).
description: Moving the Social, Vol 30 (2003): Strukturwandel aus vergleichender regionaler Perspektive nach 1945
Effects of Heavy Metals on Microbial Reductive Dechlorination of 1,2-Dichloroethane and Tetrachloroethene
Creators: name: Wang, Jingjing
name: Li, Xiuying
name: Yan, Jun
name: Yang, Yi
Publisher: name: figshare
Year: 2022
Subjects: Environmental Science

description: 16S rRNA gene high throughput Illumina Miseq sequencing reads.
The State of Labour in Turkey, 1919-1938
Creators: name: Gökmen, Özgür
Publisher: name: Moving the Social
Year: 2014

description: The dissimilarity between the labour movements in Turkey and Western Europe is admitted to a great extent. The Turkish case is frequently interpreted as a divergence from the classical pattern resulting in assessments diminishing the role of these movements. Nonetheless, new insights by historians working on various cases in the semi-periphery help us to re-appraise this often non-disputed fact. This paper does not set as an aim to re-evaluate the history in the light of these new insights, but only attempts to provide a review of these insights and an outline of the state of labour in Turkey at the beginning of the last century.
description: Moving the Social, Vol 33 (2005): Social Movements in Southeast Europe
Zur Konstruktion kollektiver Erinnerung in einem multinationalen sozialdemokratischen Kontext: Triest vor dem Ersten Weltkrieg
Creators: name: Rutar, Sabine
Publisher: name: Moving the Social
Year: 2014

description: After giving an overview of recent developments within the international and Trieste-related historiography on workers and social democrat workers' movements, the article introduces the setting of the multinational social democratic milieu in Habsburg Trieste at the turn of the century, i.e. the urbanization process, the national conflict, as well as the reference points of the social democratic movements. What follows is an analysis of how memory was constructed by the local Italian and Slovene social democrats: They referred to specific role models of the past; they separated what they called erroneously constructed memories from more suitable ones; and, importantly, they were particularly successful in tying bonds between the workers of all nationalities through the retrospective enforcement of local events and personalities, which became a lasting baggage of Triestine social democratic identity. As becomes evident, each national group constructed their own set of memories as part of their identity, with the local aspects becoming a patrimony of both Italian and Slovene social democratic workers.
description: Moving the Social, Vol 33 (2005): Social Movements in Southeast Europe
Industriekultur und Raumbewusstsein in Asturien/Spanien
Creators: name: Köhler, Holm-Detlev
Publisher: name: Moving the Social
Year: 2015

description: The article deals with the development of a spatial consciousness in the old heavy industrial region Asturias in Northern Spain. On the basis of social and cultural historical studies, qualitative research, literary sources and media representations/interpretations Holm-Detlev Köhler traces mental processes of change from industrialisation to the present structural change. Economic, political and administrative, socio-cultural and topographical conditions are confronted with concepts of self-perception and external apperceptions of the region.
description: Moving the Social, Vol 39 (2008): Raumbildung als mentaler Prozess: Schwerindustrielle Ballungsregionen im Vergleich
OBRIGAÇÕES ACESSÓRIAS: O PAPEL DO PROFISSIONAL CONTÁBIL NA IMPLANTAÇÃO DO SPED FISCAL EM UM GRUPO DE EMPRESA DO SETOR SIDERURGICO.
Creators: name: Moreira Da Silva, Cristiano Moreira
name: Fagundes Silva, Luana Fagundes
name: Maria Penido Drumond, Fátima Maria
Publisher: name: Revista de Informação Contábil
Year: 2016
Subjects: Contabilidade, impostos, obrigações acessórias e Sistema Publico de escrituração digital (SPED).

description: Este artigo teve como teve como objetivo discutir o papel do sistema público de escrituração fiscal, como foco a ramificação o SPED Fiscal. O objetivo geral foi apontar os desafios enfrentados pelo profissional contábil e a o grupo de empresa do setor siderúrgico, para atender as exigências dessa obrigação acessória. A partir da pesquisa realizada que utilizou como metodologia um estudo de caso, foi possível levantar as transformações por meio da implantação de vários processos da empresa para se adequar ao novo sistema e apresentar o processo operacional utilizado por ela para atender as exigências legais feitas pelo governo. Além disso, foi possível mostrar o quanto o SPED Fiscal possibilita ao fisco informações instantâneas, e aptas de comprovações por meio de cruzamentos de dados entre seus clientes e fornecedores ou até mesmo por meio de outras obrigações acessórias cumpridas pela empresa, o que proporciona maior segurança das informações geradas, dificulta as possíveis fraudes e proporciona maior aproximação do fisco com seu contribuinte. Palavras chaves: Contabilidade, impostos, obrigações acessórias e Sistema Publico de escrituração digital (SPED).
description: Revista de Informação Contábil, v. 9, n. 4 (2015): RIC - Revista de Informação Contábil
Forrester et al., 2018.pdf
Creators: name: J. Forrester, Steven
name: Kikuchi, Daniel
name: S. Hernandes, Marina
name: Xu, Qian
name: K. Griendling, Kathy
Publisher: name: Health Research Alliance
Year: 2019
Subjects: classificationCode: 310910
subject: Animal physiology - systems

description: Reactive oxygen species (ROS) are well known for their role in mediating both physiological and pathophysiological signal transduction. Enzymes and subcellular compartments that typically produce ROS are associated with metabolic regulation, and diseases associated with metabolic dysfunction may be influenced by changes in redox balance. In this review, we summarize the current literature surrounding ROS and their role in metabolic and inflammatory regulation, focusing on ROS signal transduction and its relationship to disease progression. In particular, we examine ROS production in compartments such as the cytoplasm, mitochondria, peroxisome, and endoplasmic reticulum and discuss how ROS influence metabolic processes such as proteasome function, autophagy, and general inflammatory signaling. We also summarize and highlight the role of ROS in the regulation metabolic/inflammatory diseases including atherosclerosis, diabetes mellitus, and stroke. In order to develop therapies that target oxidative signaling, it is vital to understand the balance ROS signaling plays in both physiology and pathophysiology, and how manipulation of this balance and the identity of the ROS may influence cellular and tissue homeostasis. An increased understanding of specific sources of ROS production and an appreciation for how ROS influence cellular metabolism may help guide us in the effort to treat cardiovascular diseases.
Incommmensurability and unconventional superconductor to insulator transition in the Hubbard model with bond-charge interaction
Creators: name: Aligia, A. A.
name: Anfossi, A.
name: Arrachea, L.
name: Boschi, C. Degli Esposti
name: Dobry, A. O.
name: Gazza, C.
name: Montorsi, A.
name: Ortolani, F.
name: Torio, M. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We determine the quantum phase diagram of the one-dimensional Hubbard model with bond-charge interaction X in addition to the usual Coulomb repulsion U at half-filling. For large enough X and positive U the model shows three phases. For large U the system is in the spin-density wave phase already known in the usual Hubbard model. As U decreases, there is first a spin transition to a spontaneously dimerized bond-ordered wave phase and then a charge transition to a novel phase in which the dominant correlations at large distances correspond to an incommensurate singlet superconductor.
description: 5 pages, 3 figures
Prediction of Apophis Asteroid Flyby Optimal Trajectories and Data Fusion of Earth-Apophis Mission Launch Windows using Deep Neural Networks
Creators: name: Ntumba, Manuel
name: Gore, Saurabh
name: Awanyo, Jean-Baptiste
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In recent years, understanding asteroids has shifted from light worlds to geological worlds by exploring modern spacecraft and advanced radar and telescopic surveys. However, flyby in 2029 will be an opportunity to conduct an internal geophysical study and test the current hypothesis on the effects of tidal forces on asteroids. The Earth-Apophis mission is driven by additional factors and scientific goals beyond the unique opportunity for natural experimentation. However, the internal geophysical structures remain largely unknown. Understanding the strength and internal integrity of asteroids is not just a matter of scientific curiosity. It is a practical imperative to advance knowledge for planetary defense against the possibility of an asteroid impact. This paper presents a conceptual robotics system required for efficiency at every stage from entry to post-landing and for asteroid monitoring. In short, asteroid surveillance missions are futuristic frontiers, with the potential for technological growth that could revolutionize space exploration. Advanced space technologies and robotic systems are needed to minimize risk and prepare these technologies for future missions. A neural network model is implemented to track and predict asteroids' orbits. Advanced algorithms are also needed to numerically predict orbital events to minimize error
description: 6 pages, 5 figures
Stock market return distributions: from past to present
Creators: name: Drozdz, S.
name: Forczek, M.
name: Kwapien, J.
name: Oswiecimka, P.
name: Rak, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We show that recent stock market fluctuations are characterized by the cumulative distributions whose tails on short, minute time scales exhibit power scaling with the scaling index alpha > 3 and this index tends to increase quickly with decreasing sampling frequency. Our study is based on high-frequency recordings of the S&P500, DAX and WIG20 indices over the interval May 2004 - May 2006. Our findings suggest that dynamics of the contemporary market may differ from the one observed in the past. This effect indicates a constantly increasing efficiency of world markets.
description: to appear in Physica A
Space Construction as a Mental Process: Heavy Industrial Regions in Comparative Perspective
Creators: name: Leboutte, René
Publisher: name: Moving the Social
Year: 2015

description: Choosing a more general approach to heavy industrial regions the article analyses how different perceptions of heavy industrial regions emerge. The author presents a wide range of reconstructions of past and present and thereby analyses different patterns of how history has been interpreted and communicated. Leboutte concludes that identity construction of coalfields reacts to internal as well as external challenges. Therefore historians are facing tensions, debates, and conflicts between the past and its representation, between reconstructed pasts and projects for the future, between mind space produced by people living in the coalfields, and perception of the coalfields from outside.
description: Moving the Social, Vol 39 (2008): Raumbildung als mentaler Prozess: Schwerindustrielle Ballungsregionen im Vergleich
Accretion geometry of the black hole binary MAXI J1820+070 probed by frequency-resolved spectroscopy
Creators: name: Axelsson, Magnus
name: Veledina, Alexandra
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The geometry of the inner accretion flow in the hard and hard-intermediate states of X-ray binaries remains controversial. Using NICER observations of the black hole X-ray binary MAXI J1820+070 during the rising phase of its 2018 outburst, we study the evolution of the timing properties, in particular the characteristic variability frequencies of the prominent iron K$α$ line. Using frequency-resolved spectroscopy, we find that reflection occurs at large distances from the Comptonizing region in the bright hard state. During the hard- to soft transition, the variability properties suggest the reflector moves closer to the X-ray source. In parallel, the peak of the iron line shifts from 6.5 to ~7 keV, becoming consistent with that expected of from a highly inclined disc extending close to the black hole. We additionally find significant changes in the dependence of the root-mean-square (rms) variability on both energy and Fourier frequency as the source softens. The evolution of the rms-energy dependence, the line profile, and the timing properties of the iron line as traced by the frequency-resolved spectroscopy all support the picture of a truncated disc/inner flow geometry.
description: 10 pages, 7 figures. Submitted to MNRAS
A New Look at Mode Conversion in a Stratified Isothermal Atmosphere
Creators: name: McDougall, A. M. D.
name: Hood, A. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent numerical investigations of wave propagation near coronal magnetic null points (McLaughlin and Hood: Astron. Astrophys. 459, 641,2006) have indicated how a fast MHD wave partially converts into a slow MHD wave as the disturbance passes from a low-beta plasma to a high-beta plasma. This is a complex process and a clear understanding of the conversion mechanism requires the detailed investigation of a simpler model. An investigation of mode conversion in a stratified, isothermal atmosphere, with a uniform, vertical magnetic field is carried out, both numerically and analytically. In contrast to previous investigations of upward-propagating waves (Zhugzhda and Dzhalilov: Astron. Astrophys. 112, 16, 1982a; Cally: Astrophys. J. 548, 473, 2001), this paper studies the downward propagation of waves from a low-beta to high-beta environment. A simple expression for the amplitude of the transmitted wave is compared with the numerical solution.
description: 14 pages, 6 figures
Flavor Composition and Energy Spectrum of Astrophysical Neutrinos
Creators: name: Lipari, Paolo
name: Lusignoli, Maurizio
name: Meloni, Davide
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The measurement of the flavor composition of the neutrino fluxes from astrophysical sources has been proposed as a method to study not only the nature of their emission mechanisms, but also the neutrino fundamental properties. It is however problematic to reconcile these two goals, since a sufficiently accurate understanding of the neutrino fluxes at the source is needed to extract information about the physics of neutrino propagation. In this work we discuss critically the expectations for the flavor composition and energy spectrum from different types of astrophysical sources, and comment on the theoretical uncertainties connected to our limited knowledge of their structure.
description: 31 pages, 18 figures
Spartakusgruppe, revolutionäre Obleute und die politischen Massenstreiks in Deutschland während des Ersten Weltkriegs
Creators: name: Luban, Ottokar
Publisher: name: Moving the Social
Year: 2015

description: Considering shortfalls in supply and a general dissatisfaction with war that led to greater resentments amongst German workers, this essay focuses on the left-wing activities during the First World War in Germany − and their limits. It examines in particular various strikes such as the Liebknecht strike of June 1916 as well as the practices employed by activists, which ultimately culminated in the November Revolution and paved the way for the Weimar Republic. The contribution shows in how far left-wing supporters regarded political mass strikes as a suitable way of expressing their stance and the struggle for democratic rights. In addition, it reveals the different positions of historians on the state repression measures and the lacking participation of trade unions and social democrats that impeded the Spartacus League and chairmen of the Labour in their intentions for peace and democracy.
description: Moving the Social, Vol 40 (2008): Forschungen und Forschungsberichte
Half-space theorem, embedded minimal annuli and minimal graphs in the Heisenberg group
Creators: name: Daniel, Benoit
name: Hauswirth, Laurent
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10; 53C42; 53A35; 53C43

description: We construct a one-parameter family of properly embedded minimal annuli in the Heisenberg group Nil_3 endowed with a left-invariant Riemannian metric. These annuli are not rotationally invariant. This family gives a vertical half-space theorem and proves that each complete minimal graph in Nil_3 is entire. Also, the sister surface of an entire minimal graph in Nil_3 is an entire constant mean curvature 1/2 graph in H^2 x R, and conversely. This gives a classification of all entire constant mean curvature 1/2 graphs in H^2 x R. Finally we construct properly embedded constant mean curvature 1/2 annuli in H^2 x R.
description: 27 pages, redaction improved
Die 1970er Jahre als Umbruchsphase der bundesdeutschen Disability History? Eine Mikrostudie zu Selbstadvokation und Anstaltskritik Jugendlicher mit Behinderung
Creators: name: Lingelbach, Gabriele
name: Stoll, Jan
Publisher: name: Moving the Social
Year: 2014

description: The article describes the 1970s as a period of change with regard to Disability History in the Federal Republic of Germany. It presents a case study of the adolescent inhabitants of a confessional institution for people with physical disabilities, who began to criticise the institution’s administration in the late 1960s. Their main critique concerned the conditions of education, the arrangement of the daily routine, and the lacking of infrastructure. Furthermore, the adolescents judged the educational methods as outdated, authoritarian and undemocratic and demanded more possibilities for participation. Their aims, approaches, and actions anticipated the upcoming new social movements, for example the so-called German cripple movement.
The authors analyse the case study as one step in a row of societal change processes, which interfered with each other in the 1970s: Firstly, structural changes concerning the media and political public opened up new ways of publicity for the aims of young people with disabilities. Secondly, people with disabilities began to organise their interests in a more horizontal, network-based way. Thirdly, the generational change played an important role in explaining altering approaches, forms of protest and especially the conflict between the institution’s administration and the adolescent critics. And finally, important conceptual renewals concerning ideas of “integration” and normalcy occurred. All in all, the 1970s saw a new way of the self-advocation of people with disabilities, which later on merged into the disability movement.
description: Moving the Social, Vol 50 (2013): Essays on Social History and the History of Social Movements
ปัจจัยที่มีผลต่อผลสัมฤทธิ์ทางการเรียนของนิสิตสาขาวิชาอาชีวอนามัยและความปลอดภัย คณะแพทยศาสตร์ มหาวิทยาลัยพะเยา
Creators: name: เสกสรรค์ ทองติ๊บ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ผลการสัมฤทธิ์ทางการเรียน, นิสิตสาขาวิชาอาชีวอนามัยและความปลอดภัย

description: 5, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
In vivo in vitro synthesis of ribosomal RNA in bacillus subtilis
Creators: name: Webb, Vera Ann B.
Publisher: name: University of British Columbia
Year: 2010

description: The work presented explored the in vivo and in vitro synthesis of ribosomal RNA in the Gram positive, spore-forming bacterium Bacillus subtilis. The investigation began with a study of rRNA synthesis in B. subtilis during steady state growth and under nutritional shift-up conditions. The percent of transcription which is ribosomal RNA was measured by hybridization of pulse labeled RNA to a specific DNA probe carrying the 3' end of the 23S RNA gene. The fractional rate of ribosomal RNA synthesis increased with cellular growth rate, and showed a rapid increase after a nutritional shift up. RNA synthesis during infection with an amber mutant of bacteriophage SP01 was also examined. Infected cells continued to synthesize rRNA at the preinfection rate, but could not respond to media enrichment by increasing the percent rRNA-synthesis. The latter study suggested the existence of a specific RNA polymerase that transcribed ribosomal RNA genes. The conclusions from the in vivo study led to an analysis of rRNA transcription in vitro. The isolation of the putative ribosomal RNA specific RNA polymerase was attempted by affinity chromatography on cellulose complexed with plasmid DNA containing the promoter region of the B. subtilis rrnB rRNA operon, and by sedimentation through a glycerol gradient. No difference in activity profile was observed when transcription activity at the rRNA tandem promoters was compared to activity at a non-ribosomal promoter. Since in vivo analysis of the control of rRNA synthesis in Escherichia coli suggested that regulation occurs at the level of transcription initiation, in vitro transcription initiation at the B. subtilis rRNA promoters was investigated using the single round transcription assay. Initial rates of transcription were different at each of the two tandem promoters of the B. subtilis rrnB operon: the upstream promoter, PI, initiated slowly, while the downstream promoter, P2, initiated faster. In addition, transcription initiation at the two promoters appeared to be linked. The formation of a heparin resistant complex at the PI promoter affected the stability of the heparin resistant complex formed at the P2 promoter. The kinetics of transcription initiation at the tandem rRNA promoters were examined using the tau plot analysis. RNA polymerase had a high affinity for both rRNA promoters, but the rate of initiation at these promoters was relatively slow when compared to non-ribosomal promoters. Finally, transcription initiation on two artificial tandem promoter constructs was compared with initiation on the native tandem promoter construct. In general, PI was shown to have a positive effect on transcription from downstream promoters, but had specific effects on different promoters.
Gravitational Wave Signals from Chaotic System: A Point Mass with A Disk
Creators: name: Kiuchi, Kenta
name: Koyama, Hiroko
name: Maeda, Kei-ichi
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study gravitational waves from a particle moving around a system of a point mass with a disk in Newtonian gravitational theory. A particle motion in this system can be chaotic when the gravitational contribution from a surface density of a disk is comparable with that from a point mass. In such an orbit, we sometimes find that there appears a phase of the orbit in which particle motion becomes to be nearly regular (the so-called ``stagnant motion'') for a finite time interval between more strongly chaotic phases. To study how these different chaotic behaviours affect on observation of gravitational waves, we investigate a correlation of the particle motion and the waves. We find that such a difference in chaotic motions reflects on the wave forms and energy spectra. The character of the waves in the stagnant motion is quite different from that either in a regular motion or in a more strongly chaotic motion. This suggests that we may make a distinction between different chaotic behaviours of the orbit via the gravitational waves.
description: Published in Phys.Rev.D76:024018,2007
พฤติกรรมการซื้อและขายน้ำยางสดของพ่อค้าในท้องถิ่น
Creators: name: จิราพร เกิดขาว
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การซื้อ, การขาย, พ่อค้าท้องถิ่น, น้ำยาง

description: 6, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
HESS J1616-508: likely powered by PSR J1617-5055
Creators: name: Landi, R.
name: De Rosa, A.
name: Dean, A. J.
name: Bassani, L.
name: Ubertini, P.
name: Bird, A. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: HESS J1616-508 is one of the brightest emitters in the TeV sky. Recent observations with the IBIS/ISGRI telescope on board the INTEGRAL spacecraft have revealed that a young, nearby and energetic pulsar, PSR J1617-5055, is a powerful emitter of soft gamma-rays in the 20-100 keV domain. In this paper we present an analysis of all available data from the INTEGRAL, Swift, BeppoSAX and XMM-Newton telescopes with a view to assessing the most likely counterpart to the HESS source. We find that the energy source that fuels the X/gamma-ray emissions is derived from the pulsar, both on the basis of the positional morphology, the timing evidence and the energetics of the system. Likewise, the 1.2% of the pulsar's spin down energy loss needed to power the 0.1-10 TeV emission is also fully consistent with other HESS sources known to be associated with pulsars. The relative sizes of the X/gamma-ray and VHE sources are consistent with the expected lifetimes against synchrotron and Compton losses for a single source of parent electrons emitted from the pulsar. We find that no other known object in the vicinity could be reasonably considered as a plausible counterpart to the HESS source. We conclude that there is good evidence to assume that the HESS J1616-508 source is driven by PSR J1617-5055 in which a combination of synchrotron and inverse Compton processes combine to create the observed morphology of a broad-band emitter from keV to TeV energies.
description: 7 pages, including 5 figures and 1 table. Accepted for publication in MNRAS
Reactive Islands for Three Degrees-of-Freedom Hamiltonian Systems
Creators: name: Krajňák, Vladimír
name: García-Garrido, Víctor J.
name: Wiggins, Stephen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We develop the geometrical, analytical, and computational framework for reactive island theory for three degrees-of-freedom time-independent Hamiltonian systems. In this setting, the dynamics occurs in a 5-dimensional energy surface in phase space and is governed by four-dimensional stable and unstable manifolds of a three-dimensional normally hyperbolic invariant sphere. The stable and unstable manifolds have the geometrical structure of spherinders and we provide the means to investigate the ways in which these spherinders and their intersections determine the dynamical evolution of trajectories. This geometrical picture is realized through the computational technique of Lagrangian descriptors. In a set of trajectories, Lagrangian descriptors allow us to identify the ones closest to a stable or unstable manifold. Using an approximation of the manifold on a surface of section we are able to calculate the flux between two regions of the energy surface.
ผลกระทบของการสอบทานการสอบบัญชีที่มีต่อประสิทธิภาพการสอบบัญชีของผู้สอบบัญชีรับอนุญาตในประเทศไทย
Creators: name: อภิศักดิ์  เจียรสุคนธ์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: การสอบทานการสอบบัญชี, ประสิทธิภาพการสอบบัญชี, ผู้สอบบัญชีรับอนุญาต

description: 3, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
รากฐานของความอยู่รอดของธุรกิจเบเกอรี่: วิธีทฤษฎีฐานราก
Creators: name: เกรียงศักดิ์ จันทีนอก
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: วิธีทฤษฎีฐานราก, ความอยู่รอดของกิจการ, ร้านเบเกอรี่

description: 3, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
การประเมินคุณภาพของนํ้าดื่มบรรจุขวดที่ผลิตในสาธารณรัฐประชาชนจีน สาธารณรัฐเกาหลีและสาธารณรัฐฝรั่งเศส
Creators: name: หทัยทิพย์ บรรเจิดจรัสเลิศ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: น้ำดื่มบรรจุขวด, แบคทีเรียบกลุ่มโคลิฟอร์ม, แบคทีเรียกลุ่มฟีคัลโคลิฟอร์ม, E. Coli

description: 3, 33, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
SUSTENTABILIDADE AMBIENTAL: UMA ANÁLISE COMPARATIVA DO MÉTODO SICOGEA – GERAÇÃO 1 E 3 APLICADO A UMA CLÍNICA ODONTOLÓGICA
Creators: name: Saldano, Samanta Martins
name: Uhlmann, Vivian Osmari
name: Pfitscher, Elisete Dahmer
Publisher: name: Revista de Informação Contábil
Year: 2017

description: O objetivo deste estudo é analisar a sustentabilidade ambiental de uma clínica odontológica municipal, com base no método SICOGEA (Sistema Contábil Gerencial Ambiental) - Geração 1 e 3 e propor um modo de minimizar os detrimentos acarretados pelos resíduos da clínica ao meio ambiente e à população. Essa pesquisa é de caráter exploratório, considerada indutiva, sua abordagem é quantitativa e qualitativa e é um estudo de caso. A clínica apresentou uma sustentabilidade global de 63,89% no SICOGEA e 47,31% no SICOGEA - 3, considerada regular por ambos os métodos adotados. Sobre a identificação dos elementos com menores resultados de sustentabilidade por meio do SICOGEA - Geração 3, verificou-se os subgrupos Fornecedores, com 36,67%, e Tratamento de Resíduos – Autoclavagem, com 38,10%, ambos classificados como fracos. Quanto ao cotejamento dos resultados encontrados no SICOGEA - Geração 1 e 3, em geral, os dois sistemas apresentaram resultados diferentes, o que confirma a especificidade do novo método, que se mostra aperfeiçoado e potencializa os resultados.
description: Revista de Informação Contábil, v. 9, n. 4 (2015): RIC - Revista de Informação Contábil
ระบบส่งกำลังไฟฟ้าจากเซลล์แสงอาทิตย์สู่ระบบส่งจ่ายกำลังไฟฟ้าย่อยแบบประหยัด
Creators: name: เลิศพันธ์ เพียรสร้างสรร
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: เซลล์แสงอาทิตย์, ระบบส่งจ่ายกำลังไฟฟ้า, อินเวอร์เตอร์

description: 1, 33, วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยมหาสารคาม
ALMA Host galaxy observation of the off-axis Gamma-Ray Burst XRF020903
Creators: name: Chen, Jheng-Cyun
name: Urata, Yuji
name: Huang, Kuiyun
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigated the radio properties of the host galaxy of X-ray flash, XRF020903, which is the best example for investigating of the off-axis origin of gamma-ray bursts(GRBs). Dust continuum at 233 GHz and CO are observed using the Atacama Large millimeter/submillimeter array. The molecular gas mass derived by applying the metalicity-dependent CO-to-H$_{2}$ conversion factor matches the global trend along the redshift and stellar mass of the GRB host galaxies. The estimated gas depletion timescale (pertaining to the potential critical characteristics of GRB host galaxies) is equivalent to those of GRBs and super-luminous supernova hosts in the same redshift range. These properties of the XRF020903 host galaxy observed in radio resemble those of GRB host galaxies, thereby supporting the identical origin of XRF020903 and GRBs.
description: 14 pages, 9 figures, 1 tables, ApJ in press
EPR investigation of free radicals in excised and attached leaves subjected to ozone and sulphur dioxide air pollution
Creators: name: Vaartnou, Manivalde
Publisher: name: University of British Columbia
Year: 2010

description: The X-band EPR spectrometry system was modified to allow for the in situ monitoring of free radical changes in attached, intact plant leaves, which were caused by stress factors such as exposure to excessive photon flux density, ozone or sulphur dioxide. This was done through use of the dewar insert of the variable temperature accessory as a guide, the construction of 'T' shaped cellulose acetate holders to which leaves could be attached with adhesive tape, and modification of the gas flow system used for controlled temperature studies. Kinetic studies of free radical formation were possible with leaves which had minimal underlying Fe⁺⁺ and Mn⁺⁺ signals. In leaves with large underlying signals a Varian software program was used to subtract overlapping signals from each other, thereby revealing the free-radical signal changes which occurred under different light regimes and stress conditions. Preliminary investigation disclosed the formation of a new signal upon prolonged exposure to far-red light and the effect of oxygen depletion upon photosynthetic Signals I and II. Leaves subject to high photon flux density reveal an unreported free-radical signal, which decays upon exposure to microwave radiation; and concomitant damage to Photosystems I and II. Upon elimination of this signal leaves return to the undamaged state or reveal permanent damage to either photo-system, depending upon the degree of damage. Kentucky bluegrass and perennial ryegrass leaves subject to low levels of ozone (up to 80ppb) for periods of 8 hours show no changes in free-radical signal formation. At intermediate levels of ozone (80-250ppb) a new free-radical signal was formed within 3 hours of fumigation, Signal II was decreased and Signal I decayed. These changes were reversible if fumigation was terminated. At fumigation levels exceeding 250ppb a different new irreversible free-radical signal was formed in darkness within 1.5 hours of fumigation. Radish, Kentucky bluegrass and perennial ryegrass leaves subject to high levels of sulphur dioxide (10-500ppm) reveal the formation of Signal I upon irradiation with broad-band white or 650nm light, thereby indicating an interruption of normal electron flow from PSII to PSI. Damage to the oxygen-evolving complex and reaction centre of PSII is also revealed through changes in Signal II and the Mn⁺⁺ signal. These changes in the normal EPR signals are dose-dependent. Leaves subject to low levels of sulphur dioxide (600-2000ppb) reveal the disappearance of Signal I after 3 hours of fumigation and the formation of a new free-radical signal with parameters similar to the sulphur trioxide free-radical signal. These latter changes are partially reversible upon termination of fumigation. After prolonged exposure to either ozone or sulphur dioxid a free-radical signal with parameters similar to the superoxid anion free-radical signal is formed in plant leaves.