cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Yangians in Integrable Field Theories, Spin Chains and Gauge-String Dualities
Creators: name: Spill, Fabian
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the following paper, which is based on the authors PhD thesis submitted to Imperial College London, we explore the applicability of Yangian symmetry to various integrable models, in particular, in relation with S-matrices. One of the main themes in this work is that, after a careful study of the mathematics of the symmetry algebras one finds that in an integrable model, one can directly reconstruct S-matrices just from the algebra. It has been known for a long time that S-matrices in integrable models are fixed by symmetry. However, Lie algebra symmetry, the Yang-Baxter equation, crossing and unitarity, which are what constrains the S-matrix in integrable models, are often taken to be separate, independent properties of the S-matrix. Here, we construct scattering matrices purely from the Yangian, showing that the Yangian is the right algebraic object to unify all required symmetries of many integrable models. In particular, we reconstruct the S-matrix of the principal chiral field, and, up to a CDD factor, of other integrable field theories with su(n) symmetry. Furthermore, we study the AdS/CFT correspondence, which is also believed to be integrable in the planar limit. We reconstruct the S-matrices at weak and at strong coupling from the Yangian or its classical limit. We give a pedagogical introduction into the subject, presenting a unified perspective of Yangians and their applications in physics. This paper should hence be accessible to mathematicians who would like to explore the application of algebraic objects to physics as well as to physicists interested in a deeper understanding of the mathematical origin of physical quantities.
description: 133 pages, accepted for publication in Reviews in Mathematical Physics
title: Vocabulary list for Lang Lo dialect of the Tho language in Nghia Dan, part 2 of 3
title: Vocabulaire thổ de Làng Lỡ, partie 2/3
title: Vốn từ vựng thổ ngữ tiếng Thổ ở Làng Lỡ, Nghĩa Đàn, phần 2/3
Creators: name: Ferlus, Michel
name: Trần, Trí Dõi
Publisher: name: Pangloss
Year: 2015
Subjects: subject: Linguistique
subject: Thổ

description: Vocabulary list for Lang Lo dialect of the Tho language in Nghia Dan, from word item 1097 to word item 1931, EFEO-CNRS-SOAS lexicon [from n° 177 to 311 following Ferlus's numbering]
description: Từ vựng thổ ngữ tiếng Thổ ở Làng Lỡ, huyện Nghĩa Đàn; từ mục từ 1097 đến mục từ 1931 trong bảng từ của EFEO-CNRS-SOAS [từ số 177 đến 311 theo kí hiệu của Ferlus]
Search for the standard model Higgs boson decaying into two photons in pp collisions at sqrt(s)=7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for a Higgs boson decaying into two photons is described. The analysis is performed using a dataset recorded by the CMS experiment at the LHC from pp collisions at a centre-of-mass energy of 7 TeV, which corresponds to an integrated luminosity of 4.8 inverse femtobarns. Limits are set on the cross section of the standard model Higgs boson decaying to two photons. The expected exclusion limit at 95% confidence level is between 1.4 and 2.4 times the standard model cross section in the mass range between 110 and 150 GeV. The analysis of the data excludes, at 95% confidence level, the standard model Higgs boson decaying into two photons in the mass range 128 to 132 GeV. The largest excess of events above the expected standard model background is observed for a Higgs boson mass hypothesis of 124 GeV with a local significance of 3.1 sigma. The global significance of observing an excess with a local significance greater than 3.1 sigma anywhere in the search range 110-150 GeV is estimated to be 1.8 sigma. More data are required to ascertain the origin of this excess.
description: Submitted to Physics Letters B
The Infrared Properties of Sources Matched in the WISE all-sky and Herschel-ATLAS Surveys
Creators: name: Bond, Nicholas A.
name: Benford, Dominic J.
name: Gardner, Jonathan P.
name: Amblard, Alexandre
name: Fleuren, Simone
name: Blain, Andrew W.
name: Dunne, Loretta
name: Smith, Daniel J. B.
name: Maddox, Steve J.
name: Hoyos, Carlos
name: Baes, Maarten
name: Bonfield, David
name: Bourne, Nathan
name: Bridge, Carrie
name: Buttiglione, Sara
name: Cava, Antonio
name: Clements, David
name: Cooray, Asantha
name: Dariush, Ali
name: de Zotti, Gianfranco
name: Driver, Simon
name: Dye, Simon
name: Eales, Steve
name: Eisenhardt, Peter
name: Hopwood, Rosalind
name: Ibar, Edo
name: Ivison, Rob J.
name: Jarvis, Matt J.
name: Kelvin, Lee
name: Robotham, Aaron S. G.
name: Temi, Pasquale
name: Thompson, Mark
name: Tsai, Chao-Wei
name: van der Werf, Paul
name: Wright, Edward L.
name: Wu, Jingwen
name: Yan, Lin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We describe the infrared properties of sources detected over ~36 deg^2 of sky in the GAMA 15-hr equatorial field, using data from both the Herschel Astrophysical Terahertz Large-Area Survey (H-ATLAS) and Wide-field Infrared Survey (WISE). With 5-sigma point-source depths of 34 and 0.048 mJy at 250 micron and 3.4 micron, respectively, we are able to identify 50.6% of the H-ATLAS sources in the WISE survey, corresponding to a surface density of ~630 deg^{-2}. Approximately two-thirds of these sources have measured spectroscopic or optical/near-IR photometric redshifts of z<1. For sources with spectroscopic redshifts at z<0.3, we find a linear correlation between the infrared luminosity at 3.4 micron and that at 250 micron, with +-50% scatter over ~1.5 orders of magnitude in luminosity, ~10^9 - 10^{10.5} L_sun. By contrast, the matched sources without previously measured redshifts (r>~20.5) have 250-350 micron flux density ratios that suggest either high-redshift galaxies (z>~1.5) or optically faint low-redshift galaxies with unusually low temperatures (T
description: 6 pages, 5 figures, accepted to ApJ Letters
title: Vocabulary list for Lang Lo dialect of the Tho language in Nghia Dan, part 3 of 3
title: Vocabulaire thổ de Làng Lỡ, partie 3/3
title: Vốn từ vựng thổ ngữ tiếng Thổ ở Làng Lỡ, Nghĩa Đàn, phần 3/3
Creators: name: Ferlus, Michel
name: Trần, Trí Dõi
Publisher: name: Pangloss
Year: 2015
Subjects: subject: Linguistique
subject: Thổ

description: Vocabulary list for Lang Lo dialect of the Tho language in Nghia Dan, from word item 1927 to word item 2896, EFEO-CNRS-SOAS lexicon [from n° 307 to 471 following Ferlus's numbering]
description: Từ vựng thổ ngữ tiếng Thổ ở Làng Lỡ, huyện Nghĩa Đàn; từ mục từ 1927 đến mục từ 2895 trong bảng từ của EFEO-CNRS-SOAS [từ số 307 đến 471 theo kí hiệu của Ferlus]
Operator inequalities related to the Corach--Porta--Recht inequality
Creators: name: Conde, Cristian
name: Moslehian, Mohammad Sal
name: Seddik, Ameur
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47B47 (Primary) 47A63, 47A30 (Secondary)

description: We prove some refinements of an inequality due to X. Zhan in an arbitrary complex Hilbert space by using some results on the Heinz inequality. We present several related inequalities as well as new variants of the Corach--Porta--Recht inequality. We also characterize the class of operators satisfying $\left\Vert SXS^{-1}+S^{-1}XS+kX\right\Vert \geq (k+2)\left\Vert X\right\Vert$ under certain conditions.
description: 12 Pages, to appear in Linear Algebra Appl. (LAA)
Unravel the downstream pathways associated with recurrent in Acute Myeloid Leukemia
Creators: name: Ali, Asmaa
name: Marwa Tantawy
name: Mariam El-zayat
name: Samar H. Kassem
Publisher: name: Zenodo
Year: 2020

description: Understanding the downstream pathways associated with the recurrence of Acute Myeloid Leukemia
Gas sloshing, cold fronts, Kelvin-Helmholtz instabilities and the merger history of the cluster of galaxies Abell 496
Creators: name: Roediger, E.
name: Lovisari, L.
name: Dupke, R.
name: Ghizzardi, S.
name: Brüggen, M.
name: Kraft, R. P.
name: Machacek, M. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the origin and nature of the multiple sloshing cold fronts in the core of Abell 496 by direct comparison between observations and dedicated hydrodynamical simulations. Our simulations model a minor merger with a 4{\times}10^13M{\circ} subcluster crossing A496 from the south-west to the north-north-east, passing the cluster core in the south-east at a pericentre distance 100 to a few 100 kpc about 0.6 to 0.8 Gyr ago. The gas sloshing triggered by the merger can reproduce almost all observed features, e.g. the characteristic spiral-like brightness residual distribution in the cluster centre and its asymmetry out to 500 kpc, also the positions of and contrasts across the cold fronts. If the subcluster passes close (100 kpc) to the cluster core, the resulting shear flows are strong enough to trigger Kelvin-Helmholtz instabilities that in projection resemble the peculiar kinks in the cold fronts of Abell 496. Finally, we show that sloshing does not lead to a significant modification of the global ICM profiles but a mild oscillation around the initial profiles.
description: MNRAS, accepted, 19 pages
Cellular buckling from mode interaction in I-beams under uniform bending
Creators: name: Wadee, M. Ahmer
name: Gardner, Leroy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Beams made from thin-walled elements, whilst very efficient in terms of the structural strength and stiffness to weight ratios, can be susceptible to highly complex instability phenomena. A nonlinear analytical formulation based on variational principles for the ubiquitous I-beam with thin flanges under uniform bending is presented. The resulting system of differential and integral equations are solved using numerical continuation techniques such that the response far into the post-buckling range can be portrayed. The interaction between global lateral-torsional buckling of the beam and local buckling of the flange plate is found to oblige the buckling deformation to localize initially at the beam midspan with subsequent cellular buckling (snaking) being predicted theoretically for the first time. Solutions from the model compare very favourably with a series of classic experiments and some newly conducted tests which also exhibit the predicted sequence of localized followed by cellular buckling.
description: 23 pages, 15 figures and 6 tables
de Sitter Gauge Theory of Gravity: An Alternative Torsion Cosmology
Creators: name: Ao, Xi-Chen
name: Li, Xin-Zhou
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A new cosmological model based on the de Sitter gauge theory (dSGT) is studied in this paper. By some transformations, we find, in the dust universe, the cosmological equations of dSGT could form an autonomous system. We conduct dynamics analysis to this system, and find 9 critical points, among which there exist one positive attractor and one negative attractor. The positive attractor shows us that our universe will enter a exponential expansion phase in the end, which is similar to the conclusion of $Λ$CDM. We also carry out some numerical calculations, which confirms the conclusion of dynamics analysis. Finally, we fit the model parameter and initial values to the Union 2 SNIa dataset, present the confidence contour of parameters and obtain the best-fit values of parameters of dSGT.
description: 11pages, 5 figures
Finite size scaling on the phase diagram of QCD
Creators: name: Gupta, Sourendu
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the last years there has been remarkable progress in the comparison of experimental data on the shape of event-by-event distributions of conserved quantities and lattice thermodynamic predictions based on the grand canonical ensemble. In this talk we discuss how the QCD crossover temperature and the freezeout curve are extracted from the analysis of fluctuations. We report that one can also go further and locate the QCD critical point already from published data. We also list the systematics which must be brought under control in future.
description: Invited talk at the conference Critical Point and the Onset of Deconfinement, 2011 (Wuhan, China)
Participatory Mapping
Creators: name: Denwood, Timna
name: Huck, J.J
Publisher: name: Zenodo
Year: 2023
Subjects: Participatory Mapping, PGIS, Lake District, Photo Comparison

description: This research explores the potential of developing Participatory Mapping interfaces that do not include an explicit map or other spatial contextualisation, using a case study in the Lake District, UK. Whilst there are countless examples of the successful deployment of map-based interfaces for collecting spatial information from citizens, in some cases, a map may not be an appropriate tool and other types of visual representations more suitable. We will demonstrate that the uncritical use of spatial contextualisation can impact both the usability of the interface
Improving Retrieval Results with discipline-specific Query Expansion
Creators: name: Lüke, Thomas
name: Schaer, Philipp
name: Mayr, Philipp
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Retrieval (cs.IR)
subject: Digital Libraries (cs.DL)
subject: FOS: Computer and information sciences

description: Choosing the right terms to describe an information need is becoming more difficult as the amount of available information increases. Search-Term-Recommendation (STR) systems can help to overcome these problems. This paper evaluates the benefits that may be gained from the use of STRs in Query Expansion (QE). We create 17 STRs, 16 based on specific disciplines and one giving general recommendations, and compare the retrieval performance of these STRs. The main findings are: (1) QE with specific STRs leads to significantly better results than QE with a general STR, (2) QE with specific STRs selected by a heuristic mechanism of topic classification leads to better results than the general STR, however (3) selecting the best matching specific STR in an automatic way is a major challenge of this process.
description: 6 pages; to be published in Proceedings of Theory and Practice of Digital Libraries 2012 (TPDL 2012)
Rundschreiben der Sacra Congregatio pro Clericis an die Vorsitzenden der Bischofskonferenzen über die Sorge für den geschichtlich-künstlerischen Besitz der Kirche
Creators: name: Wright, Johannes Card.
name: Palazzini, + Petrus
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 25 Nr. 10 (1972): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Terez Gerszi, Netherlandish drawings in the Budapest Museum, Sixteenth-century drawings, an illustrated catalogue
Creators: name: Wegner, Wolfgang
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Rezension zu: Terez Gerszi, Netherlandish drawings in the Budapest Museum, Sixteenth-century drawings, an illustrated catalogue. 2 Bände (Text und Tafeln) 117 Seiten mit 22 Abbildungen, 6 Tafeln mit Wasserzeichen. 326 Seiten mit 319 Abbildungen. Amsterdam - New York 1971
description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 25 Nr. 9 (1972): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Pole analysis on unitarized $SU(3)\times SU(3)$ one loop $χ$PT amplitudes
Creators: name: Dai, L. Y.
name: Wang, X. G.
name: Zheng, H. Q.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze $ππ-K\bar{K}$ and $πη-K\bar{K}$ couple channel [1,1] matrix Padé amplitudes of $SU(3)\times SU(3)$ chiral perturbation theory. By fitting phase shift and inelasticity data, we determine pole positions in different channels ($f_0(980)$, $a_0(980)$,$f_0(600)$, $K_0^*(800)$, $K^*(892)$, $ρ(770)$) and trace their $N_c$ trajectories. We stress that a couple channel Breit--Wigner resonance should exhibit two poles on different Riemann sheets and meet each other on the real axis when $N_c=\infty$. Poles are hence classified using this criteria and we conclude that $K^*(892)$ and $ρ(770)$ are unambiguous Breit--Wigner resonances. For scalars the situation is much less clear. We find that $f_0(980)$ is a molecular state rather than a Breit--Wigner resonance, while $a_0(980)$, though behaves oddly when varying $N_c$, does maintain a twin pole structure.
description: 16 pages
Bilder
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2020

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 25 Nr. 9 (1972): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
High critical-current density and scaling of phase-slip processes in YBaCuO nanowires
Creators: name: Papari, G.
name: Carillo, F.
name: Stornaiuolo, D.
name: Longobardi, L.
name: Beltram, F.
name: Tafuri, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: YBaCuO nanowires were reproducibly fabricated down to widths of 50 nm. A Au/Ti cap layer on YBCO yielded high electrical performance up to temperatures above 80 K in single nanowires. Critical current density of tens of MA/cm2 at T = 4.2 K and of 10 MA/cm2 at 77 K were achieved that survive in high magnetic fields. Phase-slip processes were tuned by choosing the size of the nanochannels and the intensity of the applied external magnetic field. Data indicate that YBCO nanowires are rather attractive system for the fabrication of efficient sensors, supporting the notion of futuristic THz devices.
description: 8 pages, 3 figures. Accepted for publication in Superconductor Science and Technology
Dimension Reduction Near Periodic Orbits of Hybrid Systems
Creators: name: Burden, Samuel
name: Revzen, Shai
name: Sastry, S. Shankar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: Differential Geometry (math.DG)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: When the Poincaré map associated with a periodic orbit of a hybrid dynamical system has constant-rank iterates, we demonstrate the existence of a constant-dimensional invariant subsystem near the orbit which attracts all nearby trajectories in finite time. This result shows that the long-term behavior of a hybrid model with a large number of degrees-of-freedom may be governed by a low-dimensional smooth dynamical system. The appearance of such simplified models enables the translation of analytical tools from smooth systems-such as Floquet theory-to the hybrid setting and provides a bridge between the efforts of biologists and engineers studying legged locomotion.
description: Full version of conference paper appearing in IEEE CDC/ECC 2011
Chiral heat transport in driven quantum Hall and quantum spin Hall edge states
Creators: name: Arrachea, Liliana
name: Fradkin, Eduardo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a model for an edge state of electronic systems in the quantum Hall regime with filling $ν=1$ and in the quantum spin Hall regime. In both cases the system is in contact with two reservoirs by tunneling at point contacts. Both systems are locally driven by applying an ac voltage in one of the contacts. By weakly coupling them to a third reservoir, the transport of the generated heat is studied in two different ways: i) when the third reservoir acts as a thermometer the local temperature is sensed, and ii) when the third reservoir acts as a voltage probe the time-dependent local voltage is sensed. Our results indicate a chiral propagation of the heat along the edge in the quantum Hall case and in the quantum spin Hall case (if the injected electrons are spin polarized). We also show that a similar picture is obtained if instead of heating by ac driving the system is put in contact to a stationary reservoir at a higher temperature. In both cases the temperature profile shows that the electrons along the edge thermalize with the closest "upstream" reservoir.
description: 8 pages, 3 figures
Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Combined results are reported from searches for the standard model Higgs boson in proton-proton collisions at sqrt(s)=7 TeV in five Higgs boson decay modes: gamma pair, b-quark pair, tau lepton pair, W pair, and Z pair. The explored Higgs boson mass range is 110-600 GeV. The analysed data correspond to an integrated luminosity of 4.6-4.8 inverse femtobarns. The expected excluded mass range in the absence of the standard model Higgs boson is 118-543 GeV at 95% CL. The observed results exclude the standard model Higgs boson in the mass range 127-600 GeV at 95% CL, and in the mass range 129-525 GeV at 99% CL. An excess of events above the expected standard model background is observed at the low end of the explored mass range making the observed limits weaker than expected in the absence of a signal. The largest excess, with a local significance of 3.1 sigma, is observed for a Higgs boson mass hypothesis of 124 GeV. The global significance of observing an excess with a local significance greater than 3.1 sigma anywhere in the search range 110-600 (110-145) GeV is estimated to be 1.5 sigma (2.1 sigma). More data are required to ascertain the origin of this excess.
description: Submitted to Physics Letters B
title: Proof of Concept Study of a Semiconductor Compton Camera to Be Used for Prompt Gamma Ray Imaging During Proton Therapy
Creators: name: Alshammari, Hamed Abdulrzaq T
Publisher: name: University of Liverpool Repository
Year: 2024

description: Protons are used in radiation therapy of cancerous tissue as they have the potential benefit of sparing dose to healthy tissue. Given the accuracy of the proton beam range and treatment plan uncertainties, a large safety margin has been used in planning and delivery. Using the prompt gamma (PG) for range verification and the monitoring of dose delivery in real-time is proposed to provide better control of beam direction and reduce currently used safety margins. A gamma-ray imaging system (Gri+) that includes a three-tier semiconductor Compton camera system has been evaluated to assess its potential to image prompt rays emitted during proton therapy. This work has been able to show the imaging capabilities of the Gri+ system for high-energy ray and propose sets of operational recommendations for future measurements in the proton radiotherapy facility. The Gri+ system can successfully image a high-energy -ray of 1.8 MeV for single and multiple interaction events in the system. This significantly increases the Gri+ system imaging efficiency from 27 % to 70 % but degrades the imaging resolution. Using an offline algorithm can mitigate the image resolution degradation. The image resolution was 7.2 ± 0.6 mm and 10.5 ± 0.8 mm for single and multiple interaction events in the system, respectively. The Gri+ system shows a limited count rate capability that can be linked to digitiser cards within the digital data acquisition system. The maximum Compton imaging rate that the Gri+ system could process is 1400 CPS. There is a critical situation where the system loses the ability to process the Compton imaging events at a true count rate of 49k CPS. A collaboration with the manufacturer is recommended to rectify the count rate loss issue and a minor modification to data processing hardware to maximise the operational energy range. A preliminary analysis of the operational environment in a proton therapy delivery room has also been undertaken using data that was available from Clatterbridge Cancer Centre. Results of the work have been used to inform the proposal of a systematic set of data for full evaluation in future work.
Emergence of hierarchical networks and polysynchronous behaviour in simple adaptive systems
Creators: name: Botella-Soler, V.
name: Glendinning, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We describe the dynamics of a simple adaptive network. The network architecture evolves to a number of disconnected components on which the dynamics is characterized by the possibility of differently synchronized nodes within the same network (polysynchronous states). These systems may have implications for the evolutionary emergence of polysynchrony and hierarchical networks in physical or biological systems modeled by adaptive networks.
description: 4 pages, 4 figures
Separating the BL Lac and Cluster X-ray Emissions in Abell 689 with Chandra
Creators: name: Giles, P. A.
name: Maughan, B. J.
name: Birkinshaw, M.
name: Worrall, D. M.
name: Lancaster, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of a Chandra observation of the galaxy cluster Abell 689 (z=0.279). Abell 689 is one of the most luminous clusters detected in the ROSAT All Sky Survey (RASS), but was flagged as possibly including significant point source contamination. The small PSF of the Chandra telescope allows us to confirm this and separate the point source from the extended cluster X-ray emission. For the cluster we determine a bolometric luminosity of L_{bol}=(3.3+/-0.3)x10^{44} erg s-1 and a temperature of kT=5.1^{+2.2}_{-1.3} keV when including a physically motivated background model. We compare our measured luminosity for A689 to that quoted in the Rosat All Sky Survey (RASS) and find L_{0.1-2.4,keV}=2.8x10^{44} erg s-1, a value \sim10 times lower than the ROSAT measurement. Our analysis of the point source shows evidence for significant pileup, with a pile-up fraction of ~60%. SDSS spectra and HST images lead us to the conclusion that the point source within Abell 689 is a BL Lac object. Using radio and optical observations from the VLA and HST archives, we determine α_{ro}=0.50, α_{ox}=0.77 and α_{rx}=0.58 for the BL Lac, which would classify it as being of 'High-energy peak BL Lac' (HBL) type. Spectra extracted of A689 show a hard X-ray excess at energies above 6 keV that we interpret as inverse Compton emission from aged electrons that may have been transported into the cluster from the BL Lac.
description: 11 pages, 15 figures, MNRAS in press
Modeling the underlying mechanisms for organic memory devices: Tunneling, electron emission and oxygen adsorbing
Creators: name: Yao, Yao
name: You, Yintao
name: Si, Wei
name: Wu, Chang-Qin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a combined experimental and theoretical study to get insight into both memory and negative differential resistance (NDR) effect in organic memory devices. The theoretical model we propose is simply a one-dimensional metallic island array embedding within two electrodes. We use scattering operator method to evaluate the tunneling current among the electrode and islands to establish the basic bistable I-V curves for several devices. The theoretical results match the experiments very well, and both memory and NDR effect could be understood comprehensively. The experimental correspondence, say, the experiment of changing the pressure of oxygen, is addressed as well.
description: 5 pages, 3 figures
Radiative energy loss reduction in an absorptive plasma
Creators: name: Bluhm, Marcus
name: Gossiaux, Pol Bernard
name: Aichelin, Joerg
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The influence of the damping of radiation on the radiative energy loss spectrum of a relativistic charge in an infinite, absorptive plasma is studied. We find increasing reduction of the spectrum with increasing damping. Our studies, which represent an Abelian approximation for the colour charge dynamics in the quark-gluon plasma, may influence the analysis of jet quenching phenomena observed in high-energy nuclear collisions. Here, we focus on a formal discussion of the limiting behaviour with increasing radiation frequency. In an absorptive (and polarizable) medium, this is determined by the behaviour of the exponential damping factor entering the spectrum and the formation time of radiation.
description: Jan 2012. 4pp. Talk given at Quark Matter 2011, 23-28 May 2011, Annecy, France
Origin of magnetic interactions and their influence on the structural properties of Ni2MnGa and related compounds
Creators: name: Himmetoglu, Burak
name: Katukuri, Vamshi M.
name: Cococcioni, Matteo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work, we perform first principles DFT calculations to investigate the interplay between magnetic and structural properties in Ni2MnGa. We demonstrate that the relative stability of austenite (cubic) and non-modulated martensite (tetragonal) phases depends critically on the magnetic interactions between Mn atoms. While standard approximate DFT functionals stabilize the latter phase, a more accurate treatment of electronic localization and magnetism, obtained with DFT+U, suppresses the non-modulated tetragonal structure for the stoichiometric compound, in better agreement with the experiments. We show that the Anderson impurity model, with Mn atoms treated as magnetic impurities, can explain this observation and that the fine balance between super-exchange RKKY type interactions mediated by Ni d and Ga p orbitals determines the equilibrium structure of the crystal. The Anderson model is also demonstrated to capture the effect of the number of valence electrons per unit cell on the structural properties, often used as an empirical parameter to tune the behavior of Ni2MnGa based alloys. Finally, we show that off-stoichiometric compositions with excess Mn promote transitions to a non-modulated tetragonal structure, in agreement with experiments.
description: 16 pages, 25 figures
Comparison of seismic signatures of flares obtained by SOHO/MDI and GONG instruments
Creators: name: Zharkov, S.
name: Zharkova, V. V.
name: Matthews, S. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The first observations of seismic responses to solar flares were carried out using time-distance (TD) and holography techniques applied to SOHO/MDI Dopplergrams obtained from space and un-affected by terrestrial atmospheric disturbances. However, the ground-based network GONG is potentially a very valuable source of sunquake observations, especially in cases where space observations are unavailable. In this paper we present updated technique for pre-processing of GONG observations for application of subjacent vantage holography. Using this method and TD diagrams we investigate several sunquakes observed in association with M and X-class solar flares and compare the outcomes with those reported earlier using MDI data. In both GONG and MDI datasets, for the first time, we also detect the TD ridge associated with the September 9, 2001 flare. Our results show reassuringly positive identification of sunquakes from GONG data that can provide further information about the physics of seismic processes associated with solar flares.
description: 19 pages, 6 figures, accepted to Astrophysical Journal
Checklist Requerimento de Material
Creators: name: Barreto, Isabella Lima Rohan
name: Galvão, Karen Callegario
name: De Melo Vellozo Pereira Tinoco, Juliana
name: De Oliveira, Stéfany Marinho
name: De Moraes, Érica Brandão
name: Geilsa Soraia Cavalcanti Valente
Publisher: name: Zenodo
Year: 2022
Subjects: Checklist
Requerimento de material
Gerência de enfermagem

description: Produto referente a disciplina de Gerência de Enfermagem II (UFF) Apresentação dia 15/12/2022 Setor: Unidade Coronariana (UCO)
description: {"references": ["MENDES, Ingrid Vanni; DEZOTI, Ana Paula; SCUSSIATO, Louise Aracema. IMPLANTA\u00c7\u00c3O DE UM CHECKLIST PARA VERIFICA\u00c7\u00c3O DE EQUIPAMENTOS E MATERIAISEMUMA UTI CARD\u00cdACA. v.5, n.1. ed. Curitiba: Anais do EVINCI \u2013UniBrasil, out. 2019. p. 319. Dispon\u00edvel em: https://portaldeperiodicos.unibrasil.com.br/index.php/anaisevinci/article/view/4893/3947. Acesso em: 10 dez. 2022.", "MARTINS, Estef\u00e2nia. O que \u00e9 lista de verifica\u00e7\u00e3o? Veja sua import\u00e2ncia e o passo a passo para criar uma. [S.L]: Checklist f\u00e1cil, 25 fev. 2021. Dispon\u00edvel em: https://blog-pt.checklistfacil.com/lista-de-verificacao/#:~:text=Utilizando%20uma%20lista%20de%20verifica%C3%A7%C3%A3o,tudo%20que%20deve%20ser%20inspecionado. Acesso em: 10 dez. 2022."]}
Proceedings First International Workshop on Process Algebra and Coordination
Creators: name: Aceto, Luca
name: Mousavi, Mohammad Reza
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Process algebra provides abstract and rigorous means for studying communicating concurrent systems. Coordination languages also provide abstract means for the specifying and programming communication of components. Hence, the two fields seem to have very much in common and the link between these two research areas have been established formally by means of several translations, mainly from coordination languages to process algebras. There have also been proposals of process algebras whose communication policy is inspired by the one underlying coordination languages. The aim of this workshop was to push the state of the art in the study of the connections between process algebra and coordination languages by bringing together experts as well as young researchers from the two fields to communicate their ideas and findings. It includes both contributed and invited papers that have been presented during the one day meeting on Process Algebra and Coordination (PACO 2011) which took place on June 9, 2011 in Reykjavik, Iceland.
title: Furthering Indaziflam-Based Management Strategies of Three Invasive Annual Grasses in Northern Utah
Creators: name: Maughan, Peter Weston
Publisher: name: Utah State University
Year: 2023

description: Indaziflam is an herbicide highly recognized for its potential to effectively control weedy, winter germinating grasses, such as downy brome, as the herbicides prevents seed germination for several years. Unfortunately, most of these studies only capture the first 2-3 years of indaziflam’s 3-5 years soil activity. This thesis sought to better understand indaziflam’s long-term effects by monitoring both a healthy ecosystem and a degraded ecosystem for up to 5 years after indaziflam application. A secondary study was also conducted to better understand the potential of revegetation via reseeding in indaziflam treated soils. The study concluded that indaziflam very little long-term negative impact on the ecological health of either ecosystem. The study also found potential evidence that a layer of activated carbon applied between seeding and herbicide application can promote healthy plant germination in indaziflam treated soils.
Calibrating hydrogen-rich core-collapse supernovae for their use as distance indicators independently of type Ia supernovae
Creators: name: Pumo, M. L.
name: Zampieri, L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using our new general-relativistic, radiation hydrodynamics, Lagrangian code, we computed a rather extended grid of hydrogen-rich core-collapse supernova (CC-SN) models and explored the potentials of their "standardization" as distance indicators. We discuss the properties of some calibrations previously reported in the literature and present new correlations based on the behavior of the light curve, that can be employed for calibrating hydrogen-rich CC-SNe using only photometric data.
description: 2 pages, 3 figures, to appear in Proceedings of IAU Symp. 281, Binary Paths to Type Ia Supernovae Explosions, ed. R. Di Stefano and M. Orio
Commutator width in Chevalley groups
Creators: name: Hazrat, Roozbeh
name: Stepanov, Alexei
name: Vavilov, Nikolai
name: Zhang, Zuhong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 20XX (Primary) 20XX (Secondary)

description: The present paper is the [slightly expanded] text of our talk at the Conference "Advances in Group Theory and Applications" at Porto Cesareo in June 2011. Our main results assert that [elementary] Chevalley groups very rarely have finite commutator width. The reason is that they have very few commutators, in fact, commutators have finite width in elementary generators. We discuss also the background, bounded elementary generation, methods of proof, relative analogues of these results, some positive results, and possible generalisations.
Repulsive and attractive Casimir interactions in liquids
Creators: name: Phan, Anh D.
name: Viet, N. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Casimir interactions in the solid-liquid-solid systems as a function of separation distance have been studied by the Lifshitz theory. The dielectric permittivity functions for a wide range of materials are described by Drude, Drude-Lorentz and oscillator models. We find that the Casimir forces between gold and silica or MgO materials are both the repulsive and attractive. We also find the stable forms for the systems. Our studies would provide a good guidance for the future experimental studies on the dispersion interactions.
description: 6 pages, 5 figures, submitted to Phys. Rev. A (2011). arXiv admin note: minor text overlap with arXiv:1002.2603
Search for the standard model Higgs boson decaying to a W pair in the fully leptonic final state in pp collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for the standard model Higgs boson decaying to W+W- in pp collisions at sqrt(s) = 7 TeV is reported. The data are collected at the LHC with the CMS detector, and correspond to an integrated luminosity of 4.6 inverse femtobarns. The W+W- candidates are selected in events with two charged leptons and large missing transverse energy. No significant excess of events above the standard model background expectations is observed, and upper limits on the Higgs boson production relative to the standard model Higgs expectation are derived. The standard model Higgs boson is excluded in the mass range 129-270 GeV at 95% confidence level.
description: Submitted to Physics Letters B
Questionário artigo submetido para RBMFC com título "Papel do planejamento familiar na atenção primária à saúde: métodos mistos de análise de dados"
Creators: name: Borges Costa, Lourrany
Publisher: name: Zenodo
Year: 2022
Subjects: Family Planning Policy

description: Questionário estruturado, elaborado pelos autores, utilizado em artigo submetido para RBMFC com título "Papel do planejamento familiar na atenção primária à saúde: métodos mistos de análise de dados".
Hα Emission Variability in Active M Dwarfs
Creators: name: Bell, Keaton J.
name: Hilton, Eric J.
name: Davenport, James R. A.
name: Hawley, Suzanne L.
name: West, Andrew A.
name: Rogel, Allen B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use ~12,000 spectra of ~3,500 magnetically active M0-M9 dwarfs from the Sloan Digital Sky Survey taken at 10-15 minute intervals, together with ~300 spectra of ~60 M0-M8 stars obtained hourly with the Hydra multi-object spectrometer, to probe Hα variability on timescales of minutes to weeks. With multiple observations for every star examined, we are able to characterize fluctuations in Hαemission as a function of activity strength and spectral type. Stars with greater magnetic activity (as quantified by L_Hα/L_bol) are found to be less variable at all spectral types. We attribute this result to the stronger level of persistent emission in the high activity stars, requiring a larger heating event in order to produce measurable variability. We also construct Hα structure functions to constrain the timescale of variability. The more active objects with lower variability exhibit a characteristic timescale longer than an hour, likely due to larger, longer lasting heating events, while the less active objects with higher variability have a characteristic timescale shorter than 15 minutes.
description: 7 pages, 8 figures; accepted by Publications of the Astronomical Society of the Pacific
METODOLOGIA PARA LA IDENTIFICACION DE UN FENOMENO CULTURAL
Creators: name: MOLINA BUSTOS, FRANCISCO FABIANY
Publisher: name: Zenodo
Year: 2025

description: Este documento presenta una metodología científica diseñada para la identificación y análisis de fenómenos culturales en diversos contextos sociales. Se fundamenta en enfoques multidisciplinarios que combinan la antropología, la sociología y los estudios culturales para establecer criterios objetivos de identificación, evaluación e interpretación.

La metodología propuesta se basa en un marco teórico que define los fenómenos culturales como expresiones colectivas que reflejan valores, prácticas y dinámicas sociales específicas de un grupo o comunidad. A través de un enfoque cualitativo y cuantitativo, el estudio incorpora técnicas de observación, análisis de contenido, entrevistas y estudios de caso para sistematizar el proceso de identificación y validación de estos fenómenos.

El documento desarrolla una estructura metodológica que incluye la delimitación conceptual del fenómeno cultural, el diseño de instrumentos de recolección de datos y la aplicación de criterios de análisis que permitan su clasificación. Asimismo, se examinan los factores históricos, económicos y tecnológicos que influyen en la evolución y transformación de los fenómenos culturales a lo largo del tiempo.

Los resultados obtenidos a partir de la aplicación de esta metodología permiten establecer patrones de comportamiento cultural, identificar tendencias emergentes y comprender la interacción entre los fenómenos culturales y otros sistemas sociales. Esta información es de gran utilidad para investigadores, gestores culturales y formuladores de políticas públicas, ya que facilita la toma de decisiones fundamentadas en evidencia empírica.

El documento concluye con una serie de recomendaciones para mejorar la aplicación del marco metodológico en estudios futuros, promoviendo la adaptación de la metodología a distintos entornos y dinámicas culturales.

Esta investigación contribuye al campo de los estudios culturales al proporcionar un enfoque estructurado para la identificación y análisis de fenómenos culturales, fortaleciendo así el entendimiento de la diversidad cultural y su impacto en las sociedades contemporáneas.
A proposal for a scalable universal bosonic simulator using individually trapped ions
Creators: name: Lau, Hoi-Kwan
name: James, Daniel F. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe a possible architecture to implement a universal bosonic simulator (UBS) using trapped ions. Single ions are confined in individual traps, and their motional states represent the bosonic modes. Single-mode linear operators, nonlinear phase-shifts, and linear beam splitters can be realized by precisely controlling the trapping potentials. All the processes in a bosonic simulation, except the initialization and the readout, can be conducted beyond the Lamb-Dicke regime. Aspects of our proposal can also be applied to split adiabatically a pair of ions in a single trap.
Mining App Reviews for User Feedback Analysis in Requirements Engineering: A Project Report
Creators: name: Motger, Quim
Publisher: name: Zenodo
Year: 2025

description: Replication package indexing the research outcomes (including publications, tools and datasets) for the project titled Mining App Reviews for User Feedback Analysis in Requirements Engineering. The main goal of the project is to advance the state-of-the-art and adoption of Natural Language Processing (NLP) methods to support feedback analysis in the context of requirements engineering activities. Specifically, the project focuses on three key objectives:

1. Synthesizing the state of the art in app review mining2. Identifying research gaps, particularly in feature and sentiment analysis tasks3. Designing, developing, and distributing methodological, software-based, and data-based contributions.

This project is a non-funded initiative from the Software and Service Engineering Research Group (GESSI) from Universitat Politècnica de Catalunya (BarcelonaTech).
Double Field Theory, T-Duality, and Courant Brackets
Creators: name: Zwiebach, Barton
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: These lecture notes are based on three lectures, each ninety minutes long, given by the author at the "International School on Strings and Fundamental Physics" which took place in Garching/Munich from July 25 to August 6, 2010. These lectures, aimed at graduate students, require only a basic knowledge of string theory and give a simple introduction to double field theory. These notes were prepared by Marco Baumgartl and Nicolas Moeller.
description: 25 pages