cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Light-front Ward-Takahashi Identity for Two-Fermion Systems
Creators: name: Marinho, J. A. O.
name: Frederico, T.
name: Pace, E.
name: Salme`, G.
name: Sauer, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a three-dimensional electromagnetic current operator within light-front dynamics that satisfies a light-front Ward-Takahashi identity for two-fermion systems. The light-front current operator is obtained by a quasi-potential reduction of the four-dimensional current operator and acts on the light-front valence component of bound or scattering states. A relation between the light-front valence wave function and the four-dimensional Bethe-Salpeter amplitude both for bound or scattering states is also derived, such that the matrix elements of the four-dimensional current operator can be fully recovered from the corresponding light-front ones. The light-front current operator can be perturbatively calculated through a quasi-potential expansion, and the divergence of the proposed current satisfies a Ward-Takahashi identity at any given order of the expansion. In the quasi-potential expansion the instantaneous terms of the fermion propagator are accounted for by the effective interaction and two-body currents. We exemplify our theoretical construction in the Yukawa model in the ladder approximation, investigating in detail the current operator at the lowest nontrivial order of the quasi-potential expansion of the Bethe-Salpeter equation. The explicit realization of the light-front form of the Ward-Takahashi identity is verified. We also show the relevance of instantaneous terms and of the pair contribution to the two-body current and the Ward-Takahashi identity.
description: 48 pages, 3 figures
Experimental investigation of the origin of the cross-over temperature in the cuprates
Creators: name: Lubashevsky, Yuval
name: Keren, Amit
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the cross-over temperature T* as a function of doping in (Ca_{x}La_{1-x})(Ba_{1.75-x}La_{0.25+x})Cu_3O_{y}, where the maximum Tc (Tc^max) varies continuously by 30% between families (x) with minimal structural changes. T* is determined by DC-susceptibility measurements. We find that T* scales with the maximum Neel temperature TN^max of each family. This result strongly supports a magnetic origin of T*, and indicates that three dimensional interactions play a role in its magnitude.
description: 4 pages, 4 figures
อัตลักษณ์ชุมชนไทยกับการเปลี่ยนแปลงในยุคโลกาภิวัตน์
Creators: name: สุพัตรา ราษฎร์ศิริ
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2013
Subjects: อัตลักษณ์,ชุมชน,โลกาภิวัตน์,การพัฒนาอย่างยั่งยืน

description: 62, Academic Journal of Architecture
Observation of Very High Energy Gamma Rays from HESS J1804-216 with CANGAROO-III Telescopes
Creators: name: Higashi, Y.
name: Kubo, H.
name: Yoshida, T.
name: Enomoto, R.
name: Tanimori, T.
name: Edwards, P. G.
name: Naito, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We observed the unidentified TeV gamma-ray source HESS J1804-216 with the CANGAROO-III atmospheric Cerenkov telescopes from May to July in 2006. We detected very high energy gamma rays above 600 GeV at the 10 sigma level in an effective exposure of 76 hr. We obtained a differential flux of (5.0+/-1.5_{stat}+/-1.6_{sys})\times 10^{-12}(E/1 TeV)^{-α} cm^{-2}s^{-1}TeV^{-1} with a photon index αof 2.69 +/- 0.30_{stat} +/- 0.34_{sys}, which is consistent with that of the H.E.S.S. observation in 2004. We also confirm the extended morphology of the source. By combining our result with multi-wavelength observations, we discuss the possible counterparts of HESS J1804-216 and the radiation mechanism based on leptonic and hadronic processes for a supernova remnant and a pulsar wind nebula.
description: 11 pages, 12 figures, Accepted in ApJ
title: The making of the healthcare self
title: State metamorphoses, activation, responsibilisation and red-green alliance’s healthcare reforms in Germany
titleType: Subtitle
Creators: name: Ullrich, Peter
name: Kausch, Stefan
name: Holze, Sigrun
Publisher: name: Technische Universität Berlin
Year: 2012
Subjects: subject: 300 Sozialwissenschaften
subject: Deutschland
subject: Gesundheitsvorsorge
subject: Gesundheitswesen
subject: Politische Reform
subject: Rot-Grüne Koalition
subject: Germany
subject: Green party
subject: healthcare
subject: political reform
subject: social democrats

description: The coalition government in Germany (1998-2005) of the social democrats and the greens instituted several healthcare reform measures marking a paradigm shift and thus setting the direction of reform for subsequent governments’ healthcare politics. Agreeing with governmentality studies perspectives on recent transformations of govern-ing western democracies that have been analysed as ambiguously offering new opportuni-ties (= more freedom) and bringing new disciplinary measures (= more force), it can be shown that many measures are geared towards the activation and responsibilisation of insurants. In doing so, they produce what we call a “healthcare self”. This is characterised by a feeling of personal responsibility for one’s health, knowledge of options to obtain health, a high degree of reflexivity in health issues and willingness to pay for healthcare costs, because they are seen as an investment in one’s own prosperity. This is founded in a moral discourse and an institutional restructuring, which we consider a sign for a basic metamorphosis of the concept of the state into what we call a new state arrangement.
Metal-enriched halo gas across galaxy overdensities over the last 10 billion years
Creators: name: Dutta, Rajeshwari
name: Fumagalli, Michele
name: Fossati, Matteo
name: Bielby, Richard M.
name: Stott, John P.
name: Lofthouse, Emma K.
name: Cantalupo, Sebastiano
name: Cullen, Fergus
name: Crain, Robert A.
name: Tripp, Todd M.
name: Prochaska, J. Xavier
name: Battaia, Fabrizio Arrigoni
name: Burchett, Joseph N.
name: Fynbo, Johan P. U.
name: Murphy, Michael T.
name: Schaye, Joop
name: Tejos, Nicolas
name: Theuns, Tom
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a study of metal-enriched halo gas traced by MgII and CIV absorption at z<2 in the MUSE Analysis of Gas around Galaxies survey and the Quasar Sightline and Galaxy Evolution survey. Using these large and complete galaxy surveys in quasar fields, we study the dependence of the metal distribution on galaxy properties and overdensities, out to physical projected separations of 750 kpc. We find that the cool, low-ionization gas is significantly affected by the environment across the full redshift range probed, with ~2-3 times more prevalent and stronger MgII absorption in higher overdensity group environments and in regions with greater overall stellar mass and star formation rates. Complementary to these results, we have further investigated the more highly ionized gas as traced by CIV absorption, and found that it is likely to be more extended than the MgII gas, with ~2 times higher covering fraction at a given distance. We find that the strength and covering fraction of CIV absorption show less significant dependence on galaxy properties and environment than the MgII absorption, but more massive and star-forming galaxies nevertheless also show ~2 times higher incidence of CIV absorption. The incidence of MgII and CIV absorption within the virial radius shows a tentative increase with redshift, being higher by a factor of ~1.5 and ~4, respectively, at z>1. It is clear from our results that environmental processes have a significant impact on the distribution of metals around galaxies and need to be fully accounted for when analyzing correlations between gaseous haloes and galaxy properties.
description: 27 pages; accepted for publication in MNRAS
Spinors and Theta Deformations
Creators: name: Dabrowski, Ludwik
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 58B34, 53D55, 46L87

description: The construction due to Connes and Landi of Dirac operators on theta-deformed manifolds is recalled, stressing the aspect of spin structure. The description of Connes and Dubois-Violette is extended to arbitrary spin structure.
description: 10 pages, based on talks at "NCGOA", Nashville (US), May 2007 and "Geometry and Operators Theory", Ancona (Italy), September 2007
Timandrini Stephens 1850
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae

description: Timandrini 1381 R Haematopis grataria (Fabricius, 1798) L May – M Aug – – G T: McGuffin (1967) L: Bowman (1951), McGuffi n (1967) C: CNC, UASM
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on page 208, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["McGuffin WC (1967) Guide to the Geometridae of Canada (Lepidoptera) I. Subfamily Sterrhinae. Memoirs of the Entomological Society of Canada 50: 1 - 67.", "Bowman K (1951) An annotated list of the Lepidoptera of Alberta. Canadian Journal of Zoology 29: 121 - 165."]}
A Gauge Model of Data Selection, Acquisition and Analysis for LHC
Creators: name: Krasny, Mieczyslaw Witold
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A novel model of the data selection, acquisition and analysis for a multi-purpose and multi-component high-energy-physics experiment is presented. Its departure point is the freedom and the responsibility given to the different physics groups of the experiment to impose, on the {\it event-by-event basis}, their physics-goal-optimal configurations of (i) the sub-detectors, (ii) the trigger and data acquisition system, and (iii) the reconstruction and analysis framework. Its target is to develop, in a close analogy to the construction of the gauge models in particle physics, the overall data handling scheme, in which a multi-purpose experiment becomes an association of coexistent, yet largely independent, physics-group-based sub-experiments sharing common hardware maintenance, data-acquisition, and data reconstruction resources.
description: Contribution to the Cracow Epiphany Conference on LHC Physics, 4-6 January 2008, Cracow, Poland
Exhaustible sets in higher-type computation
Creators: name: Escardo, Martin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1; F.3.2

description: We say that a set is exhaustible if it admits algorithmic universal quantification for continuous predicates in finite time, and searchable if there is an algorithm that, given any continuous predicate, either selects an element for which the predicate holds or else tells there is no example. The Cantor space of infinite sequences of binary digits is known to be searchable. Searchable sets are exhaustible, and we show that the converse also holds for sets of hereditarily total elements in the hierarchy of continuous functionals; moreover, a selection functional can be constructed uniformly from a quantification functional. We prove that searchable sets are closed under intersections with decidable sets, and under the formation of computable images and of finite and countably infinite products. This is related to the fact, established here, that exhaustible sets are topologically compact. We obtain a complete description of exhaustible total sets by developing a computational version of a topological Arzela--Ascoli type characterization of compact subsets of function spaces. We also show that, in the non-empty case, they are precisely the computable images of the Cantor space. The emphasis of this paper is on the theory of exhaustible and searchable sets, but we also briefly sketch applications.
An exploratory study of the working alliance : its measurement and relationship to therapy outcome
Creators: name: Horvath, Adam O.
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this exploratory study was to develop a paper-and-pencil inventory to measure the strength and quality of the Therapeutic Working Alliance. This instrument, the Working Alliance Inventory (WAI), was based on the conceptualization of a Working Alliance developed by Bordin (1975,1976). According to Bordin, the Working Alliance has three components: Bond, Goal, and Task. The WAI was designed to tap the client's and therapist's perceptions of these components of a therapeutic relationship after the third therapy interview. An item pool was developed for the WAI, based upon a survey of the literature. The items formulated were refined and culled on the basis of two successive ratings by groups of expert raters. Following these ratings, the WAI was pilot tested in an analog environment using graduate students in counselling psychology as subjects. Finally, the WAI along with two existing tests, the Counselor Rating Form (CRF) (LaCrosse, 1977) and the Relationship Inventory (R-I) (Barrett-Lennard, 1962), were administered to client-therapist dyads representing a variety of theoretical approaches to psychotherapy. Psychotherapy outcome was measured by adaptations of the Client Posttherapy Questionnaire (Strupp et al., 1964). The results indicated that the WAI had adequate reliability, and evidence was gathered supporting the instrument's construct validity. The analysis of the data suggests that there is a strong correlational relationship between Empathy and the alliance dimension of Bond, and a moderate relationship between Empathy and Goal. The Task dimension was reasonably independent of Empathy. All of the WAI dimensions had low correlations with the concepts measured by the CRF. The client reported Working Alliance Task dimension correlated significantly with satisfaction, change, and composite outcome, while the Goal dimension correlated significantly with satisfaction. All of the therapist reported alliance dimensions correlated significantly with satisfaction and change as well as the composite outcome score. Multiple regression analysis using all of the client predictor variables (Empathy, Trustworthiness, Expertness, Attractiveness, Bond, Task, Goal) suggested that the Task scale of the WAI, which was designed to measure the perceived relevance of therapy events, may be the most efficient therapy outcome prognosticator of the variables investigated. The nature of the sample and the low subject-to-variable ratio in this research suggested that the study must be replicated in order to more firmly establish the stability and generalizability of the findings.
Cosymbiini Prout 1911
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae

description: Cosymbiini 1380 R Cyclophora pendulinaria (Guenée, [1858]) E Jun – E Jul m B g T: McGuffin (1967) L: Bowman (1951), Prentice (1963), McGuffin (1967), Ives and Wong (1988), Pohl et al. (2004b) C: CNC, NFRC, OLDS, UASM
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on page 208, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["McGuffin WC (1967) Guide to the Geometridae of Canada (Lepidoptera) I. Subfamily Sterrhinae. Memoirs of the Entomological Society of Canada 50: 1 - 67.", "Bowman K (1951) An annotated list of the Lepidoptera of Alberta. Canadian Journal of Zoology 29: 121 - 165.", "Prentice RM (1963) Forest Lepidoptera of Canada reported by the Forest Insect Survey, Vol. 3: Lasiocampidae, Drepanidae, Th yatiridae, Geometridae. Canada Dept. of Forestry, Forest Entomology and Pathology Branch, Bulletin No. 128, pp. 282 - 543.", "Ives WGH, Wong HR (1988) Tree and shrub insects of the Prairie provinces. Natural Resources Canada, Canadian Forest Service, Northern Forestry Centre, Edmonton, AB, Information Report NOR-X- 292, 327 pp.", "Pohl GR, Langor DW, Landry J-F, Spence JR (2004 b) Lepidoptera of the Boreal Mixedwood Forest near Lac La Biche, Alberta, including new provincial records. Canadian Field-Naturalist 118: 530 - 549."]}
Quantitative study of the transverse correlation of soft gluons in high energy QCD
Creators: name: Avsar, Emil
name: Hatta, Yoshitaka
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine both analytically and numerically the validity of factorization for the double dipole scattering amplitude T^{(2)} which appears on the right hand side of the BK--JIMWLK equation. We demonstrate that, if one uses a dilute object (e.g., a proton in DIS) as the initial condition, the correlation in the transverse plane induced by the leading order BFKL evolution is generally strong, resulting in a violation of the mean field approximation T^{(2)} \approx TT even at zero impact parameter by a factor ranging from 1.5 to O(10) depending on the relative size of the scatterers and rapidity. This suggests that, within the experimentally accessible energy interval, the transverse correlation can significantly affect the nonlinear evolution of the dipole scattering amplitude. It also suggests that the nonlinear effects may set in earlier, already in the weak scattering regime. In the case of the simulation with a running coupling, the violation of factorization is somewhat milder, but still noticeable.
Superconductivity in Co-doped SmFeAsO
Creators: name: Qi, Yanpeng
name: Gao, Zhaoshun
name: Wang, Lei
name: Wang, Dongliang
name: Zhang, Xianping
name: Ma, Yanwei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Here we report the synthesis and basic characterization of SmFe1-xCoxAsO (x=0.10, 0.15). The parent compound SmFeAsO itself is not superconducting but shows an antiferromagnetic order near 150 K, which must be suppressed by doping before superconductivity emerges. With Co-doping in the FeAs planes, antiferromagnetic order is destroyed and superconductivity occurs at 15 K. Similar to LaFe1-xCoxAsO, the SmFe1-xCoxAsO system appears to tolerate considerable disorder in the FeAs planes. This result is important, which indicates difference between cuprare superconductors and the iron-based arsenide ones.
description: 11 pages, 3 figures
Equilibriumlike extension of the invaded cluster algorithm
Creators: name: Balog, I.
name: Uzelac, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose an extension of the nonequilibrium invaded cluster (IC) algorithm, which reestablishes a correct scaling of fluctuations at criticality and also self-adjusts to the critical temperature. We show that by introducing a single constraint to the intrinsic quantity of the IC algorithm the temperature becomes well defined and the sampling of the equilibrium ensemble is regained. The procedure is applied to the Potts model in two and three dimensions.
description: 10 pages, 3 figures. to be published in Phys. Rev. E Rapid Communications
AT2018lqh and the nature of the emerging population of day-scale duration optical transients
Creators: name: Ofek, E. O.
name: Adams, S. M.
name: Waxman, E.
name: Sharon, A.
name: Kushnir, D.
name: Horesh, A.
name: Ho, A.
name: Kasliwal, M. M.
name: Yaron, O.
name: Gal-Yam, A.
name: Kulkarni, S. R.
name: Bellm, E.
name: Masci, F.
name: Shupe, D.
name: Dekany, R.
name: Graham, M.
name: Riddle, R.
name: Duev, D.
name: Andreoni, I.
name: Mahabal, A.
name: Drake, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on the discovery of AT2018lqh (ZTF18abfzgpl) -- a rapidly-evolving extra-galactic transient in a star-forming host at 242 Mpc. The transient g-band light curve's duration above half-maximum light is about 2.1 days, where 0.4/1.7 days are spent on the rise/decay, respectively. The estimated bolometric light curve of this object peaked at about 7x10^42 erg/s -- roughly seven times brighter than AT2017gfo. We show that this event can be explained by an explosion with a fast (v~0.08 c) low-mass (~0.07 Msun) ejecta, composed mostly of radioactive elements. For example, ejecta dominated by Ni-56 with a time scale of t_0=1.6 days for the ejecta to become optically thin for gamma-rays fits the data well. Such a scenario requires burning at densities that are typically found in the envelopes of neutron stars or the cores of white dwarfs. A combination of circumstellar material (CSM) interaction power at early times and shock cooling at late times is consistent with the photometric observations, but the observed spectrum of the event may pose some challenges for this scenario. The observations are not consistent with a shock breakout from a stellar envelope, while a model involving a low-mass ejecta ramming into low-mass CSM cannot explain both the early- and late-time observations.
description: 10 pages, ApJ in press
Transient dynamics of the Anderson impurity model out of equilibrium
Creators: name: Schmidt, T. L.
name: Werner, P.
name: Muehlbacher, L.
name: Komnik, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss the transient effects in the Anderson impurity model that occur when two fermionic continua with finite bandwidths are instantaneously coupled to a central level. We present results for the analytically solvable noninteracting resonant level system first and then consistently extend them to the interacting case using the conventional perturbation theory and recently developed nonequilibrium Monte Carlo simulation schemes. The main goal is to gain an understanding of the full time-dependent nonlinear current-voltage characteristics and the population probability of the central level. We find that, contrary to the steady state, the transient dynamics of the system depends sensitively on the bandwidth of the electrode material.
description: 10 pages, 5 figures, submitted to PRB
Economic Evaluation of Transperineal versus Transrectal Devices for Local Anaesthetic Prostate Biopsies
Creators: name: Wilson, Edward C. F.
name: Wreford, Alice
name: Tamer, Priya
name: Leonard, Kelly
name: Brechka, Hannah
name: Gnanapragasam, Vincent J.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Original Research Article

description: Abstract: Background: Biopsy of the prostate for suspected cancer is usually performed transrectally under local anaesthesia in the outpatient clinic setting. As this involves piercing the bowel wall, the procedure is associated with a risk of infection. Recently, devices that facilitate transperineal biopsy approaches have been developed that avoid piercing the bowel and so should reduce the risk of infection. Objective: The aim of this study was to estimate the cost effectiveness of transperineal versus transrectal ultrasound-guided local anaesthesia procedures for prostate biopsy from the perspective of the UK NHS and to estimate the value of further research in the area. Methods: a) Decision tree and Markov model synthesising all relevant evidence estimating the life-time costs and QALYs accrued from each biopsy mode. b) Value of information analysis to predict the return from further research and thus guide future research efforts. Results: Transperineal biopsy yields an ICER below £20,000 per QALY gained at a per-procedure device acquisition cost below £81, or £41 for cost-neutrality. These results are driven by differences in consumables cost, reduced cost of treating infections, and QALY gains associated with reduced infections. There is value in future research on the diagnostic accuracy of transperineal versus transrectal biopsies and the incidence of iatrogenic infection and sepsis; consideration should be given to enriching the patient population with men with intermediate-risk disease. Conclusions: Transperineal biopsy devices may be cost effective compared with transrectal biopsy at per-procedure acquisition costs below £81 and cost-neutral if under £41. Future research is required to confirm or refute these findings, particularly randomised comparisons of the diagnostic accuracy and infection risks between the methods.
On the elastic energy and stress correlation in the contact between elastic solids with randomly rough surfaces
Creators: name: Persson, B. N. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: When two elastic solids with randomly rough surfaces are brought in contact, a very inhomogeneous stress distribution sigma(x) will occur at the interface. Here I study the elastic energy and the correlation function , where sigma(q) is the Fourier transform of sigma(x) and where stands for ensemble average. I relate to the elastic energy stored at the interface, and I show that for self affine fractal surfaces, quite generally \sim q^{-(1+H)}, where H is the Hurst exponent of the self-affine fractal surface.
description: 3 pages
RNA G-quadruplex structures control ribosomal protein production
Creators: name: Varshney, Dhaval
name: Cuesta, Sergio Martinez
name: Herdy, Barbara
name: Abdullah, Ummi Binti
name: Tannahill, David
name: Balasubramanian, Shankar
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/631/337/574
/631/92/610
/631/92
article

description: Funder: Herchel Smith Funds
description: Funder: Wellcome Trust; doi: http://dx.doi.org/10.13039/100010269
description: Funder: Cancer Research UK; doi: http://dx.doi.org/10.13039/501100000289
description: Abstract: Four-stranded G-quadruplex (G4) structures form from guanine-rich tracts, but the extent of their formation in cellular RNA and details of their role in RNA biology remain poorly defined. Herein, we first delineate the presence of endogenous RNA G4s in the human cytoplasmic transcriptome via the binding sites of G4-interacting proteins, DDX3X (previously published), DHX36 and GRSF1. We demonstrate that a sub-population of these RNA G4s are reliably detected as folded structures in cross-linked cellular lysates using the G4 structure-specific antibody BG4. The 5′ UTRs of protein coding mRNAs show significant enrichment in folded RNA G4s, particularly those for ribosomal proteins. Mutational disruption of G4s in ribosomal protein UTRs alleviates translation in vitro, whereas in cells, depletion of G4-resolving helicases or treatment with G4-stabilising small molecules inhibit the translation of ribosomal protein mRNAs. Our findings point to a common mode for translational co-regulation mediated by G4 structures. The results reveal a potential avenue for therapeutic intervention in diseases with dysregulated translation, such as cancer.
Functional Determinants for Regular-Singular Laplace-type Operators
Creators: name: Vertman, Boris
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 58J50 (Primary) 35P05 (Secondary)

description: We discuss a specific class of regular-singular Laplace-type operators with matrix coefficients. Their zeta determinants were studied by K. Kirsten, P. Loya and J. Park on the basis of the Contour integral method, with general boundary conditions at the singularity and Dirichlet boundary conditions at the regular boundary. We complete the arguments of Kirsten, Loya and Park by explicitly verifying that the Contour integral method indeed applies in the regular-singular setup. Further we extend the zeta determinant computations to generalized Neumann boundary conditions at the regular boundary and apply our results to Laplacians on a bounded generalized cone with relative ideal boundary conditions.
description: Some references were corrected. 49 pages, 2 figures
A search for counterparts of quiet sun radio transients in extreme ultraviolet data
Creators: name: Mondal, Surajit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recently nonthermal radio transients from the quiet sun have been discovered and it has been hypothesised using rough calculations that they might be important for coronal heating. It is well realized that energy calculations using coherent emissions are often subject to poorly constrained parameters and hence have large uncertainties associated with them. However energy estimates using observations in the extreme ultraviolet (EUV) and soft X-ray bands are routinely done and the techniques are pretty well established. This work presents our first attempt to identify the EUV counterparts of these radio transients and then use the counterpart to estimate the energy deposited into the corona during the event. I show that the group of radio transients studied here was associated with an brightening observed in the extreme ultraviolet waveband and was produced due to a flare of energy $\sim 10^{25}$ ergs. The fact that the flux density of the radio transient is only $\sim 2\,$mSFU suggests that it might be possible to do large statistical studies in future for understanding the relationship between these radio transients and other EUV and X-ray counterparts and also for understanding their importance in coronal heating.
description: Accepted for publication in Solar Physics
แนวทางการออกแบบคลินิกทันตกรรม
Creators: name: ธิดาสิริ ภัทรากาญจน์
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2012
Subjects: การออกแบบคลินิกทันตกรรม,แนวทางการออกแบบ,สถาปัตยกรรม

description: 61, Academic Journal of Architecture
Nemoriini Gumppenberg 1887
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae

description: Nemoriini 1394 R Nemoria unitaria (Packard, 1873) M Jul – L Jul – B G T: Ferguson (1985a), McGuffin (1988) L: Bowman (1951), Ferguson (1985a), McGuffin (1988) C: CNC, NFRC, OLDS, PMAE, UASM 1395 * R Nemoria darwiniata (Dyar, 1904) Jun – Aug M – – T: Ferguson (1985a), McGuffin (1988) L: McGuffi n (1988) C: CNC 1396 * R Nemoria rubrifrontaria (Packard, 1873) M Jun – B – T: Ferguson (1985a), McGuffin (1988) L: None C: PMAE, UASM 1397 R Nemoria mimosaria (Guenée, [1858]) Jun – b G T: Ferguson (1985a), McGuffin (1988) L: McGuffi n (1988) C: CNC, UASM
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on pages 209-210, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["Ferguson DC (1985 a) Geometroidea: Geometridae: Geometrinae. Fasc. 18.1. In: Dominick RB, Ferguson DC, Franclemont JG, Hodges RW, Munroe EG (Eds) Th e moths of America north of Mexico. Wedge Entomological Research Foundation, Washington, D. C., 131 pp. + plates, index.", "McGuffin WC (1988) Guide to the Geometridae of Canada (Lepidoptera) III, IV, and V. Subfamilies Archiearinae, Oenochrominae, and Geometrinae. Memoirs of the Entomological Society of Canada 145: 1 - 56.", "Bowman K (1951) An annotated list of the Lepidoptera of Alberta. Canadian Journal of Zoology 29: 121 - 165."]}
ความสัมพันธ์ของการพัฒนาวิชาชีพต่อเนื่องของผู้ประกอบวิชาชีพสถาปัตยกรรมควบคุม(พวต.)กับโครงการสถาปนิกอาเซียน
Creators: name: พรพรหม แม้นนนทรัตน์
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2012
Subjects: สถาปนิกอาเซียน,วิชาชีพสถาปัตยกรรม,การพัฒนาวิชาชีพต่อเนื่อง,พวต.

description: 61, Academic Journal of Architecture
Non-perturbative F-terms across lines of BPS stability
Creators: name: Garcia-Etxebarria, Inaki
name: Marchesano, Fernando
name: Uranga, Angel M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider non-perturbative terms in the 4d effective action due to BPS D-brane instantons, and study their continuity properties in moduli space as instantons cross lines of BPS stability, potentially becoming non-BPS. We argue that BPS instantons contributing to the superpotential cannot become non-BPS anywhere in moduli space, since they cannot account for the required four goldstino fermion zero modes. At most they can reach lines of threshold stability, where they split into mutually BPS multi-instantons, as already discussed in the literature. On the other hand, instantons with additional fermion zero modes, contributing to multi-fermion F-terms, can indeed cross genuine lines of marginal stability, beyond which they lead to non-BPS systems. The non-BPS instanton generates an operator which is a D-term locally in moduli space, but not globally. This is due to a cohomological obstruction localized on the BPS locus, where the D-term must be written as an F-term, thus ensuring the continuity of the 4d contribution to the effective action. We also point out an interesting relation between lifting of fermion zero modes on instantons and 4d supersymmetry breaking.
description: 31 pages, 3 figures. v2: Small typos corrected
Star Cluster Ecology: Revisiting the Origin of Iron and Age Complex Clusters
Creators: name: Bastian, Nate
name: Pfeffer, Joel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Typical globular clusters (GCs - young and old) host stellar populations with little or no star-to-star variations in heavy elements (e.g., Ca, Fe) nor in age. Nuclear star clusters (NSCs), on the other hand, host complex stellar populations that show multi-modal distributions in Fe and often in age, presumably due to their unique location at the centre of a large galactic potential well. However, recently a new class of clusters have been discovered, exemplified by the clusters Terzan~5 and Liller~1, two high mass, high metallicity clusters in the inner Galactic regions. It has been suggested that these are not true GCs, but rather represent left over fragments of the formation of the Galactic Bulge. Here, we critically assess this scenario and find that the role of dynamical friction likely makes it untenable and that the method used to estimate the initial masses of the clumps was invalid. Instead, it appears more likely that these clusters represent a relatively rare phenomenon of existing GCs accreting gas and forming a 2nd generation, as has been previously suggested.
description: 5 pages, accepted for publication in MNRAS
Finite-size effects in the spherical model of finite thickness
Creators: name: Chamati, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A detailed analysis of the finite-size effects on the bulk critical behaviour of the $d$-dimensional mean spherical model confined to a film geometry with finite thickness $L$ is reported. Along the finite direction different kinds of boundary conditions are applied: periodic $(p)$, antiperiodic $(a)$ and free surfaces with Dirichlet $(D)$, Neumann $(N)$ and a combination of Neumann and Dirichlet $(ND)$ on both surfaces. A systematic method for the evaluation of the finite-size corrections to the free energy for the different types of boundary conditions is proposed. The free energy density and the equation for the spherical field are computed for arbitrary $d$. It is found, for $2
description: Version published in J. Phys. A: Math. Theor
Synchlorini Fergusson 1969
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae

description: Synchlorini 1398 * R Dichorda rectaria (Grote, 1877) Jun – – G T: Ferguson (1985a) L: None C: RSM 1399 * R Synchlora aerata (Fabricius, 1798) M Jul – E Aug – B g T: Ferguson (1985a), McGuffin (1988) L: Ferguson (1985a), McGuffi n (1988) C: CNC, OLDS, UASM 1400 * R Synchlora bistriaria (Packard, 1876) Jul – – G T: Ferguson (1985a), McGuffin (1988) L: Bowman (1951), Ferguson (1985a), McGuffin (1988) C: CNC,OLDS, UASM
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on page 210, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["Ferguson DC (1985 a) Geometroidea: Geometridae: Geometrinae. Fasc. 18.1. In: Dominick RB, Ferguson DC, Franclemont JG, Hodges RW, Munroe EG (Eds) Th e moths of America north of Mexico. Wedge Entomological Research Foundation, Washington, D. C., 131 pp. + plates, index.", "McGuffin WC (1988) Guide to the Geometridae of Canada (Lepidoptera) III, IV, and V. Subfamilies Archiearinae, Oenochrominae, and Geometrinae. Memoirs of the Entomological Society of Canada 145: 1 - 56.", "Bowman K (1951) An annotated list of the Lepidoptera of Alberta. Canadian Journal of Zoology 29: 121 - 165."]}
On the Gross-Pitaevskii equation for trapped dipolar quantum gases
Creators: name: Carles, Rémi
name: Markowich, Peter
name: Sparber, Christof
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the time-dependent Gross-Pitaevskii equation describing Bose-Einstein condensation of trapped dipolar quantum gases. Existence and uniqueness as well as the possible blow-up of solutions are studied. Moreover, we discuss the problem of dimension-reduction for this nonlinear and nonlocal Schrodinger equation.
description: 21 pages
Arctic curves of the Reflecting Boundary Six Vertex and of the Twenty Vertex models
Creators: name: Di Francesco, Philippe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We apply the Tangent Method of Colomo and Sportiello to predict the arctic curves of the Six Vertex model with reflecting (U-turn) boundary and of the related Twenty Vertex model with suitable domain wall boundary conditions on a quadrangle, both in their Disordered phase.
description: 68 pages, 23 figures
Antiferromagnetism versus Kondo screening in the two-dimensional periodic Anderson model at half filling: Variational cluster approach
Creators: name: Horiuchi, S.
name: Kudo, S.
name: Shirakawa, T.
name: Ohta, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The variational cluster approach (VCA) based on the self-energy functional theory is applied to the two-dimensional symmetric periodic Anderson model at half filling. We calculate a variety of physical quantities including the staggered moments and single-particle spectra at zero temperature to show that the symmetry breaking due to antiferromagnetic ordering occurs in the strong coupling region, whereas in the weak coupling region, the Kondo insulating state without symmetry breaking is realized. The critical interaction strength is estimated. We thus demonstrate that the phase transition due to competition between antiferromagnetism and Kondo screening in the model can be described quantitatively by VCA.
description: 6 pages, 4 figures
Exclusive photoproduction of Upsilon: from HERA to Tevatron
Creators: name: Rybarska, A.
name: Schäfer, W.
name: Szczurek, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The forward photoproduction amplitude for gamma p to Upsilon p is calculated in a pQCD k_t-factorization approach with an unintegrated gluon distribution constrained by inclusive deep-inelastic structure functions. The total cross section for diffractive Upsilons is compared with a recent HERA data. We also discuss the 2S/1S ratio in diffractive Upsilon-production. The amplitude is used to predict the cross section for exclusive Upsilon production in hadronic reactions. Differential distributions for the exclusive p pbar to p Upsilon pbar process are calculated for Tevatron energies. We also show predictions for LHC. Absorption effects are included.
description: 14 pages, 8 figures; predictions for LHC included
The Quantum Refrigerator: The quest for absolute zero
Creators: name: Rezek, Yair
name: Salamon, Peter
name: Hoffmann, Karl Heinz
name: Kosloff, Ronnie
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The scaling of the optimal cooling power of a reciprocating quantum refrigerator is sought as a function of the cold bath temperature as $T_c \to 0$. The working medium consists of noninteracting particles in a harmonic potential. Two closed-form solutions of the refrigeration cycle are analyzed, and compared to a numerical optimization scheme, focusing on cooling toward zero temperature. The optimal cycle is characterized by linear relations between the heat extracted from the cold bath, the energy level spacing of the working medium and the temperature. The scaling of the optimal cooling rate is found to be proportional to $T_c^{3/2}$ giving a dynamical interpretation to the third law of thermodynamics.
A comparision of the recategorized WISC-R scores of good and poor spellers
Creators: name: Keung, Cecilia
Publisher: name: University of British Columbia
Year: 2010

description: The WISC-R (Wechsler, 1974) was administered to 29 good spellers and 31 poor spellers in grade six. The obtained scaled scores were recategorized in the manner suggested by Bannatyne (1974) into Spatial (Block Design, Object Assembly, and Picture Completion), Conceptual (Vocabulary, Similarities, and Comprehension), and Sequential (Digit Span, Coding, and Arithmetic) categories. The poor spellers were highest (mean score) in the Spatial category, intermediate in the Conceptual category, and lowest in the Sequential category. The good spellers were highest in the Conceptual category, intermediate in the Sequential category and lowest in the Spatial category. These results are similar to those obtained in Bannatyne's 1971 study of genetic dyslexic children, and other studies reported in the literature for disabled and retarded readers. The implications of these findings are briefly discussed.
Events trigger generator for resonant spherical detectors of gravitational waves
Creators: name: Foffa, Stefano
name: Sturani, Riccardo
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We have set up and tested a pipeline for processing the data from a spherical gravitational wave detector with six transducers. The algorithm exploits the multichannel capability of the system and provides a list of candidate events with their arrival direction. The analysis starts with the conversion of the six detector outputs into the scalar and the five quadrupolar modes of the sphere, which are proportional to the corresponding gravitational wave spherical components. Event triggers are then generated by an adaptation of the WaveBurst algorithm. Event validation and direction reconstruction are made by cross-checking two methods of different inspiration: geometrical (lowest eigenvalue) and probabilistic (maximum likelihood). The combination of the two methods is able to keep substantially unaltered the efficiency and can reduce drastically the detections of fake events (to less than ten per cent). We show a quantitative test of these ideas by simulating the operation of the resonant spherical detector miniGRAIL, whose planned sensitivity in its frequency band (few hundred Hertz's around 3 kHz) is comparable with the present LIGO one.
description: 14 pages, 8 figures. Version accepted for publication on CQG. Proceedings of the 12th Gravitational Wave Data Analysis Workshop
Discovery of Molecular Line Polarization in the Disk of TW Hya
Creators: name: Teague, Richard
name: Hull, Chat L. H.
name: Guilloteau, Stéphane
name: Bergin, Edwin A.
name: Dutrey, Anne
name: Henning, Thomas
name: Kuiper, Rolf
name: Semenov, Dmitry
name: Stephens, Ian W.
name: Vlemmings, Wouter H. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report observations of polarized line and continuum emission from the disk of TW~Hya using the Atacama Large Millimeter/submillimeter Array. We target three emission lines, $^{12}$CO (3-2), $^{13}$CO (3-2) and CS (7-6), to search for linear polarization due to the Goldreich-Kylafis effect, while simultaneously tracing the continuum polarization morphology at 332\,GHz (900\,\micron{}), achieving a spatial resolution of 0.5\arcsec{} (30~au). We detect linear polarization in the dust continuum emission; the polarization position angles show an azimuthal morphology, and the median polarization fraction is $\sim$\,0.2\%, comparable to previous, lower frequency observations. Adopting a `shift-and-stack' technique to boost the sensitivity of the data, combined with a linear combination of the $Q$ and $U$ components to account for their azimuthal dependence, we detect weak linear polarization of $^{12}$CO and $^{13}$CO line emission at a $\sim 10σ$ and $\sim 5σ$ significance, respectively. The polarization was detected in the line wings, reaching a peak polarization fraction of $\sim 5\%$ and $\sim 3\%$ for the two molecules between disk radii of 0.5" and 1". The sign of the polarization was found to flip from the blue-shifted side of the emission to the red-shifted side, suggesting a complex, asymmetric polarization morphology. Polarization is not robustly detected for the CS emission; however, a tentative signal, comparable in morphology to that found for the $^{12}$CO and $^{13}$CO emission, is found at a $\lesssim 3σ$ significance. We are able to reconstruct a polarization morphology, consistent with the azimuthally averaged profiles, under the assumption that this is also azimuthally symmetric, which can be compared with future higher-sensitivity observations.
description: Accepted by ApJ
D1.6 CityCLIM Framework (M36)
Creators: name: Nagorny, Kevin
name: Schoolmann, Ingo
name: Baier, Christoph
name: De la Fuente Daruich, Lucas
name: Wolff, Christian
Publisher: name: Zenodo
Year: 2024

description: The CityCLIM framework provides tailored manuals with information and guidelines for all types of CityCLIM users, as for example:

• city administrations or city planners who are interested in integrating and using the CityCLIM solution in their city,• citizens who are interested in contributing to CityCLIM as citizen scientists,• third party developers who are interested in developing fur-ther components for the Generic City Climate Platform as well as City Climate Services or integrating further data sources.

D1.6 is the second edition of manuals aimed at developers, third-party software providers, city administrations and city planners