cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Constructive role of dissipation for driven coupled bosonic modes
Creators: name: Joshi, Chaitanya
name: Jonson, Mats
name: Ohberg, Patrik
name: Andersson, Erika
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically investigate a system of two coupled bosonic modes subject to both dissipation and external driving. We show that in the steady state the degree of entanglement between the coupled bosonic modes can be enhanced by dissipation. The non-monotonic dependence of entanglement on the decay rates is observed when the bosonic modes are asymmetrically coupled to their local baths. This counterintuitive result opens a new way to better understand the interplay between noise and coherence in continuous variable systems driven away from equilibrium.
description: 4.5 pages. Published version (with minor modifications)
Revisiting B_s\toμ^+μ^- and B\to K^{(*)}μ^+μ^- decays in the MSSM with and without R-parity
Creators: name: Wang, Ru-Min
name: Xu, Yuan-Guo
name: Wang, Yi-Long
name: Yang, Ya-Dong
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The rare decays B_s -> μ^+μ^- and B -> K^{(*)}μ^+μ^- are sensitive to new particles and couplings via their interferences with the standard model contributions. Recently, the upper bound on B(B_s -> μ^+μ^-) has been improved significantly by the CMS, LHCb, CDF, and DØ experiments. Combining with the measurements of B(B-> K^{(*)}μ^+μ^-), we derive constraints on the relevant parameters of minimal supersymmetic standard model with and without R-parity, and examine their contributions to the dimuon forward-backward asymmetry in B-> K^{*}μ^+μ^- decay. We find that (i) the contribution of R-parity violating coupling products λ^{\prime}_{2i2}λ^{\prime*}_{2i3} due to squark exchange is comparable with the theoretical uncertainties in B-> K μ^+μ^- decay, but still could be significant in B-> K^{*}μ^+μ^- decay and could account for the forward-backward asymmetry in all dimuon invariant mass regions; (ii) the constrained mass insertion (δ^{u}_{LL})_{23} could have significant contribution to dA_{FB}(B-> K^{*}μ^+μ^-)/ds, and such effects are favored by thr recent results of the Belle, CDF, and LHCb experiments.
description: 20 pages, 9 figures, published version
Evaporation cast thin film carbon nanotube strain gauges
Creators: name: Au, Daniel Tak Yin
Publisher: name: University of British Columbia
Year: 2013

description: This work describes the research performed on synthesising and measuring the gauge factor of evaporation cast thin film carbon nanotube strain gauges. The main characteristics pursued of the strain gauges are inexpensive, easily manufactured and reasonably sensitive. Carbon nanotubes have exhibited a high gauge factor due to their intrinsic piezoresistivity and were incorporated into evaporation cast films to try to take advantage of the high sensitivity. Another direction taken to improve the sensitivity is alignment of carbon nanotubes in the thin film. Previous work produced an evaporation cast carbon nanotube strain gauge with a relatively high gauge factor. However, it was not reproducible and the research encompassed extends from the previous work. A number of ink compositions with different carbon nanotube and surfactant loadings were used to synthesise thin films of carbon nanotubes on a polyimide substrate. Variations of evaporation casting were used to decrease the evaporation rate in attempts of carbon nanotube alignment through a self-organising liquid crystal phase during evaporation. Other methods of inkjet printing and air flow evaporation casting were also attempted to achieve alignment. Electrical connections using a conductive polymer and metal wires were fabricated onto the samples for electrical measurements. A four-point probe resistance measurement under the application of strain was used to elicit the gauge factors. The strain gauge design was modified from previous work for more reliable electrical connections and for higher applied strains. A procedure for electrical measurements coupled with the application of strain was devised and the gauge factors achieved varied between 0.1 and 4.0 with a median of 1.1 ±0.1. The median gauge factor was reproducible and exhibited by several samples fabricated with different types of evaporation casting. The decrease in evaporation rate did not result in either alignment or relatively high gauge factors. In general, alignment was not achieved with the other methods of air flow evaporation and inkjet printing.
Calibration of oscillation amplitude in Dynamic Scanning Force Microscopy
Creators: name: Martínez, Juan Francisco González
name: Carvajal, Inés Nieto
name: Paetz, Jaime Colchero
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A method to precisely calibrate the oscillation amplitude in Dynamic Scanning Force Microscopy is described. It is experimentally shown that a typical electronics used to process the dynamic motion of the cantilever can be adjusted to transfer the thermal noise of the cantilever motion from its resonance frequency to a much lower frequency within the typical bandwidth of the corresponding electronics. Therefore, the thermal noise measured in the in-phase ("phase") and out of phase ("amplitude") output of such an electronics can be related to the thermal energy $kT$. If the force constant of the cantilever is known then the oscillation amplitude can be precisely calibrated from the thermal power measured in these signals. Based on this concept, two procedures for the calibration of the oscillation amplitude are proposed. One is based on simple calculation of the Root Mean Square (RMS) measured at the outputs of the electronics used to process the dynamic motion of the cantilever, and the other one is based on analysis of the corresponding spectrum and the calculation of the quality factor, the resonance frequency and the signal strength.
description: 15 pages, 3 figures, 2 tables
PT-symmetry, indefinite damping and dissipation-induced instabilities
Creators: name: Kirillov, Oleg N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Spectral Theory (math.SP)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: With perfectly balanced gain and loss, dynamical systems with indefinite damping can obey the exact PT-symmetry being marginally stable with a pure imaginary spectrum. At an exceptional point where the symmetry is spontaneously broken, the stability is lost via passing through a non-semisimple 1:1 resonance. In the parameter space of a general dissipative system, marginally stable PT-symmetric ones occupy singularities on the boundary of the asymptotic stability. To observe how the singular surface governs dissipation-induced destabilization of the PT-symmetric system when gain and loss are not matched, an extension of recent experiments with PT-symmetric LRC circuits is proposed.
description: 15 pages, 5 figures
Localization and Spreading of Diseases in Complex Networks
Creators: name: Goltsev, A. V.
name: Dorogovtsev, S. N.
name: Oliveira, J. G.
name: Mendes, J. F. F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Social and Information Networks (cs.SI)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Using the SIS model on unweighted and weighted networks, we consider the disease localization phenomenon. In contrast to the well-recognized point of view that diseases infect a finite fraction of vertices right above the epidemic threshold, we show that diseases can be localized on a finite number of vertices, where hubs and edges with large weights are centers of localization. Our results follow from the analysis of standard models of networks and empirical data for real-world networks.
description: 5 pages, 3 figures
Quantum Collapse and the Second Law of Thermodynamics
Creators: name: Hormoz, Sahand
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A heat engine undergoes a cyclic operation while in equilibrium with the net result of conversion of heat into work. Quantum effects such as superposition of states can improve an engine's efficiency by breaking detailed balance, but this improvement comes at a cost due to excess entropy generated from collapse of superpositions on measurement. We quantify these competing facets for a quantum ratchet comprised of an ensemble of pairs of interacting two-level atoms. We suggest that the measurement postulate of quantum mechanics is intricately connected to the second law of thermodynamics. More precisely, if quantum collapse is not inherently random, then the second law of thermodynamics can be violated. Our results challenge the conventional approach of simply quantifying quantum correlations as a thermodynamic work deficit.
description: 11 pages, 2 figures
Prevalence and associated risk factors of anemia among HIV infected children attending Gondar university hospital, Northwest Ethiopia: a cross sectional study
Creators: name: Bamlaku Enawgaw 1* , Meseret Alem 2 , Mulugeta Melku 1 , Zelalem Addis , Betelihem Terefe , Gashaw Yitayew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: No abstract available for this resource
Amiota (Amiota) basdeni Fonseca 1965
Creators: name: Sidorenko, V. S.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Amiota
Amiota basdeni

description: Amiota (Amiota) basdeni Fonseca, 1965
MATERIAL. Ukraine: 4 ♂, 30 km N Tyachev, Malaya Ugol'ka River, 20, 22.VI 1964 (Gorodkov).
DISTRIBUTION. Ukraine (first record), Hungary, Czech Republic, Switzerland, Great Britain [2].
description: Published as part of Sidorenko, V. S., 2005, Additions To The Fauna Of Drosophilidae (Diptera) Of Russia And Ukraine, pp. 11-12 in Far Eastern Entomologist 147 on page 11, DOI: 10.5281/zenodo.10084971
A multi-omics approach to investigate the complex interplay between muscle-invasive bladder cancer and the host immune response
Creators: name: Gavriel, Christos G.
Publisher: name: University of St Andrews
Year: 2021
Subjects: Bladder cancer
Tumour microenvironment
Cancer immunology
Prognostic markers
Digital pathology
Extracellular vesicles

description: Muscle-invasive bladder cancer (MIBC) prognosis is mainly assessed by clinical cancer stage which is codified using the Tumour-Node-Metastasis (TNM) staging system. However, recent studies have demonstrated that disease progression and thus prognosis is profoundly influenced by the immune context of the tumour microenvironment. Multiplex immunofluorescence was applied on MIBC tissue sections to capture whole slide images and quantify potential prognostic markers related to lymphocytes, macrophages, PD-L1 and tumour buds. Two independent machine learning-based methodologies were implemented and the resulting prognostic models reported that: (i) tumour budding was the most significant feature (HR=2.59, P=0.0091) for the stratification of non-metastatic patients into high or low risk of disease specific death, and (ii) the combination of image, clinical, and spatial features stratified MIBC patients into two risk groups with high statistical significance (P<1E⁻⁰⁵) and greater accuracy than the current clinical gold standard, the TNM staging system . To provide further insights into the tumour-immune microenvironment, spatially resolved differential expression of immunologically relevant proteins was quantified across entire MIBC tissues using a 31-plex spatial profiling platform. Significant alterations in the expression of proteins were identified within different compartments of the tissue related to tumour core, tumour buds, stroma and tumour infiltrating lymphocytes showing that this technology has the capability to capture immunological signatures if applied in a larger heterogeneous sample population. Lastly, to delve into the molecular causes of immune evasion by cancer cells, extracellular vesicles (EVs) were isolated by differential ultra- centrifugation from conditioned media of PD-L1 and PD-L1 knockout human bladder carcinoma cells. Co-culture assays demonstrated that EVs derived from PD-L1 bladder carcinoma cells can impair immune functions by reducing CD8 T-cell proliferation. In addition, 210 EV proteins were identified by proteomic analysis, including two newly identified proteins which are not present in known exosome databases.
Anisotropic magnetothermoelectric power of ferromagnetic thin films
Creators: name: Anwar, M. S.
name: Lacoste, B.
name: Aarts, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We compare the behavior of the magnetothermoelectric power (MTEP)in metallic ferromagnetic thin films of Ni80Fe20 (Permalloy; Py), Co and CrO2 at temperatures in the range of 100 K to 400 K. In 25 nm thick Py films and 50 nm thick Co films both the anisotropic magnetoresistance (AMR) and MTEP show a relative change in resistance and thermoelectric power (TEP) of the order of 0.2% when the magnetic field is reversed, and in both cases there is no significant change in AMR or MTEP any more after the saturation field has been reached. Surprisingly, both Py and Co films have opposite MTEP behavior although both have the same sign for AMR and TEP. The data on 100 nm films of fully spin-polarized CrO2, grown both on TiO2 and on sapphire, show a different picture. The MTEP behavior at low fields shows peaks similar to the AMR in these films, with variations up to 1%. With increasing field both the MR and the MTEP variations keeps growing, with MTEP showing relative changes of 1.5% with the thermal gradient along the b-axis and even 20% with the gradient along the c-axis, with an intermediate value of 3% for the film on sapphire. It appears that the low-field effects are due to magnetic domain switching, while the high-field effects are intrinsic to the electronic structure of CrO2.
description: 6 pages, 7 figures
Thermal States in Conformal QFT. II
Creators: name: Camassa, Paolo
name: Longo, Roberto
name: Tanimoto, Yoh
name: Weiner, Mihaly
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Operator Algebras (math.OA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T40 81T05 46L60

description: We continue the analysis of the set of locally normal KMS states w.r.t. the translation group for a local conformal net A of von Neumann algebras on the real line. In the first part we have proved the uniqueness of KMS state on every completely rational net. In this second part, we exhibit several (non-rational) conformal nets which admit continuously many primary KMS states. We give a complete classification of the KMS states on the U(1)-current net and on the Virasoro net Vir_1 with the central charge c=1, whilst for the Virasoro net Vir_c with c>1 we exhibit a (possibly incomplete) list of continuously many primary KMS states. To this end, we provide a variation of the Araki-Haag-Kastler-Takesaki theorem within the locally normal system framework: if there is an inclusion of split nets A in B and A is the fixed point of B w.r.t. a compact gauge group, then any locally normal, primary KMS state on A extends to a locally normal, primary state on B, KMS w.r.t. a perturbed translation. Concerning the non-local case, we show that the free Fermi model admits a unique KMS state.
description: 36 pages, no figure. Dedicated to Rudolf Haag on the occasion of his 90th birthday. The final version is available under Open Access. This paper contains corrections to the Araki-Haag-Kaster-Takesaki theorem (and to a proof of the same theorem in the book by Bratteli-Robinson). v3: a reference corrected
Resolving inconsistencies in the maturation of human global motion perception
Creators: name: Meier, Kimberly Megan
Publisher: name: University of British Columbia
Year: 2013

description: The typical development of motion perception is commonly assessed with tests of global motion integration using random dot kinematograms (RDKs). There are discrepancies, however, with respect to when typically-developing children reach adult-like performance on this task, ranging from as early as 3 years to as late as 12 years. While much research characterizes performance in terms of dot speed, there is evidence that different spatial and temporal components can impact performance on this task in adults and in children. Other studies suggest that the distance that dots are displaced each animation frame (∆x), rather than frame duration (∆t) or dot speed (∆x/∆t) per se, determines performance in developing macaques. No studies have directly investigated whether psychophysical performance follows this pattern in children. The current studies measured motion coherence thresholds in adults and children in two experiments. Experiment 1 examined differences in adult performance in two studies with similar RDK parameters except for the ∆x and ∆t used to make up similar speeds. This experiment tested four ∆x/∆t pairs yielding a speed of 1 deg/s, and held the number of presented frames constant, or the duration of the stimulus constant. These factors had no effect on the thresholds of adults. Experiment 2 was designed to replicate the results of macaque studies in human children, and compare their thresholds to adults. Two ∆t values were used in combination with seven ∆x values, for a range of speeds (0.3-38 deg/s). Adult thresholds followed a u-shape as a function of ∆x, with lower coherence thresholds for larger ∆t when ∆x was small. Child thresholds followed a rough u-shape as a function of ∆x, regardless of ∆t. Developmental comparisons showed children performed as well as adults for larger ∆x, and were immature for smaller ∆x. When parameters were expressed as speed, there was a range of intermediate speeds (4-12 deg/s) for which maturity was dependent on the values of ∆x and ∆t tested. These results resolve previous discrepancies by showing that motion sensitivity to a given speed may be mature, or not, depending on the underlying spatial and temporal properties of the motion stimulus.
Clustering and redshift-space distortions in interacting dark energy cosmologies
Creators: name: Marulli, Federico
name: Baldi, Marco
name: Moscardini, Lauro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the spatial properties of the large scale structure (LSS) of the Universe in the framework of coupled dark energy (cDE) cosmologies. Using the public halo catalogues from the CoDECS simulations -- the largest set of N-body experiments to date for such cosmological scenarios -- we estimate the clustering and bias functions of cold dark matter (CDM) haloes, both in real- and redshift-space. Moreover, we investigate the effects of the dark energy (DE) coupling on the geometric and dynamic redshift-space distortions, quantifying the difference with respect to the concordance LambdaCDM model. At z~0, the spatial properties of CDM haloes in cDE models appear very similar to the LambdaCDM case, even if the cDE models are normalized at last scattering in order to be consistent with the latest Cosmic Microwave Background (CMB) data. At higher redshifts, we find that the DE coupling produces a significant scale-dependent suppression of the halo clustering and bias function. This effect, that strongly depends on the coupling strength, is not degenerate with sigma8 at scales r<5-10 Mpc/h. Moreover, we find that the coupled DE strongly affects both the linear distortion parameter, beta, and the pairwise peculiar velocity dispersion, sigma12. Although the models considered in this work are found to be all in agreement with presently available observational data, the next generation of galaxy surveys will be able to put strong constraints on the level of coupling between DE and CDM exploiting the shape of redshift-space clustering anisotropies.
description: 11 pages, 7 figures. Minor changes, references added. MNRAS published
Implications of the effective axial-vector coupling of gluon on top-quark charge asymmetry at the LHC
Creators: name: Gabrielli, Emidio
name: Racioppi, Antonio
name: Raidal, Martti
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study different top quark charge asymmetries and the variation of $t\bar t$ total cross section induced by the effective axial-vector coupling of gluon in the LHC experiments. We show that rapidity cut-dependent asymmetries are more sensitive to the new physics than the independent ones. We also study the dependence of the asymmetries and variations of total $t\bar t$ cross sections on the invariant mass of $t\bar t$ system and show that it would be necessary to measure those quantities as functions of $m_{tt}$ at the LHC. In the context of considered new physics scenario, 7 TeV LHC has enough sensitivity either to confirm the Tevatron top asymmetry anomaly or to rule it out. In the latter case the LHC is able to put stringent constraint on the new physics scale $Λ$ in this framework.
description: few small changes in the text, Fig. 2 corrected, same as published version, 12 pages, 9 figures
Edge rings satisfying Serre's condition R_1
Creators: name: Hibi, Takayuki
name: Katthän, Lukas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 52B20 (Primary) 13H10, 14M25 (Secondary)

description: A combinatorial criterion for the edge ring of a finite connected graph to satisfy Serre's condition R_1 is studied.
Near-BPS Skyrmions: Non-shell configurations and Coulomb effects
Creators: name: Bonenfant, Eric
name: Harbour, Louis
name: Marleau, Luc
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 relatively small binding energy in nuclei suggests that they may be well represented by near-BPS Skyrmions since their mass is roughly proportional to the baryon number $A.$ For that purpose, we propose a generalization of the Skyrme model with terms up to order six in derivatives of the pion fields and treat the nonlinear $σ$ and Skyrme terms as small perturbations. For our special choice of mass term (or potential) $V$, we obtain well-behaved analytical BPS-type solutions with non-shell configurations for the baryon density, as opposed to the more complex shell-like configurations found in most extensions of the Skyrme model . Along with static and (iso)rotational energies, we add to the mass of the nuclei the often neglected Coulomb energy and isospin breaking term. Fitting the four model parameters, we find a remarkable agreement for the binding energy per nucleon $B/A$ with respect to experimental data. These results support the idea that nuclei could be near-BPS Skyrmions.
description: Correction of minors errors, references added
On the Rational Type 0f Moment Angle Complexes
Creators: name: Bahri, A.
name: Bendersky, M.
name: and, F. R. Cohen
name: Gitler, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55P62

description: In this note it is shown that the moment angle complexes Z(K;(D^2,,S^1)) which are rationally elliptic are a product of odd spheres and a disk
description: This version avoids the use of an incorrect result from the literature in the proof of Theorem 1.3. There is some text overlap with arXiv:1410.6458
Hot electron cooling by acoustic phonons in graphene
Creators: name: Betz, A. C.
name: Vialla, F.
name: Brunel, D.
name: Voisin, C.
name: Picher, M.
name: Cavanna, A.
name: Madouri, A.
name: Fève, G.
name: Berroir, J. -M.
name: Plaçais, B.
name: Pallecchi, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated the energy loss of hot electrons in metallic graphene by means of GHz noise thermometry at liquid helium temperature. We observe the electronic temperature T / V at low bias in agreement with the heat diffusion to the leads described by the Wiedemann-Franz law. We report on $T\propto\sqrt{V}$ behavior at high bias, which corresponds to a T4 dependence of the cooling power. This is the signature of a 2D acoustic phonon cooling mechanism. From a heat equation analysis of the two regimes we extract accurate values of the electron-acoustic phonon coupling constant $Σ$ in monolayer graphene. Our measurements point to an important effect of lattice disorder in the reduction of $Σ$, not yet considered by theory. Moreover, our study provides a strong and firm support to the rising field of graphene bolometric detectors.
description: 5 figures
Coordination of passive systems under quantized measurements
Creators: name: De Persis, Claudio
name: Jayawardhana, Bayu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper we investigate a passivity approach to collective coordination and synchronization problems in the presence of quantized measurements and show that coordination tasks can be achieved in a practical sense for a large class of passive systems.
description: 40 pages, 1 figure, submitted to journal, second round of review
Harmonic decomposition of two-particle angular correlations in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Angular correlations between unidentified charged trigger ($t$) and associated ($a$) particles are measured by the ALICE experiment in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV for transverse momenta $0.25 < p_{T}^{t,\, a} < 15$ GeV/$c$, where $p_{T}^t > p_{T}^a$. The shapes of the pair correlation distributions are studied in a variety of collision centrality classes between 0 and 50% of the total hadronic cross section for particles in the pseudorapidity interval $|η| < 1.0$. Distributions in relative azimuth $Δϕ\equiv ϕ^t - ϕ^a$ are analyzed for $|Δη| \equiv |η^t - η^a| > 0.8$, and are referred to as "long-range correlations". Fourier components $V_{nΔ} \equiv \langle \cos(nΔϕ)\rangle$ are extracted from the long-range azimuthal correlation functions. If particle pairs are correlated to one another through their individual correlation to a common symmetry plane, then the pair anisotropy $V_{nΔ}(p_{T}^t, p_{T}^a)$ is fully described in terms of single-particle anisotropies $v_n (p_{T})$ as $V_{nΔ}(p_{T}^t, p_{T}^a) = v_n(p_{T}^t) \, v_n(p_{T}^a)$. This expectation is tested for $1 \leq n \leq 5$ by applying a global fit of all $V_{nΔ} (p_{T}^t, p_{T}^a)$ to obtain the best values $v_{n}\{GF\} (p_{T})$. It is found that for $2 \leq n \leq 5$, the fit agrees well with data up to $p_T^a \sim 3$-4 GeV/$c$, with a trend of increasing deviation as $p_{T}^t$ and $p_{T}^a$ are increased or as collisions become more peripheral. This suggests that no pair correlation harmonic can be described over the full $0.25 < p_{T} < 15$ GeV/$c$ range using a single $v_n(p_T)$ curve; such a description is however approximately possible for $2 \leq n \leq 5$ when $p_T^a < 4$ GeV/$c$. For the $n=1$ harmonic, however, a single $v_1(p_T$ curve is not obtained even within the reduced range $p_T^a < 4$ GeV/$c$.
description: 26 pages, 11 captioned figures, 2 tables, authors from page 20, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3504
title: Activities of EURADOS Working Group 12 in establishing DRLs for Interventional Radiology, Cardiology & Cone Beam CT
Creators: name: KNEZEVIC MEDIJA, Željka
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Chemoembolisation
subject: Percutaneous
subject: Cone beam CT
subject: Radiation physics
subject: Radioprotection / Radiation dose
subject: Interventional vascular
subject: Action 2 - Clinical diagnostic reference levels (DRLs)
subject: Embolisation
subject: Embolism / Thrombosis

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: The European Radiation Dosimetry Group (EURADOS) is a self-sustainable network of more than 70 European institutions and 560 scientists. The aim of the network is to promote research and development and European cooperation in the field of dosimetry...
title: Are we over using CT in young patients referred in emergency for acute abdominal pain: an useless dose burden.
Creators: name: Anzelmo, Maria Teresa
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 1 - Guidelines, implementation policies, and Clinical Decision Support (ESR iGuide)
subject: Action 6 - Clinical audit tool for imaging
subject: Radioprotection / Radiation dose
subject: CT
subject: Radiation safety
subject: Acute

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: We selected retrospectively, through the Radiology Information System (RIS) of our University Hospital, all patients between 15 and 46yrs (children less than 15yrs are not admitted to our Accident and Emergency Department – A&E as in our city...
title: Helical multislice computed tomography: quantification of overscan dose length product
Creators: name: Longo, Mariaconcetta
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 4 - Dose management systems
subject: Radioprotection / Radiation dose
subject: CT
subject: Dosimetry
subject: Quality assurance

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: During the last decades, the growth in use of medical imaging examinations has led to a significant interest on radiation dose delivered to patients. Computed Tomography (CT) examinations have been identified as the largest source of medical...
The one-loop and Sommerfeld electroweak corrections to the Wino dark matter annihilation
Creators: name: Hryczuk, Andrzej
name: Iengo, Roberto
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We compute the present-day Wino dark matter annihilation cross-section including the one-loop radiative corrections together with the fully treated electroweak Sommerfeld effect. We discuss what is the consistent way of incorporating these two corrections simultaneously and why simply using the running coupling constants values at the Wino mass scale is not correct. The results show that up to a few TeV scale the full one-loop computation makes the cross-section smaller up to about 30% with respect to the Sommerfeld enhanced tree level result and are considerably larger than the tree or one-loop level without the Sommerfeld effect.
description: 25 pages, 13 figures; clarifications on the range of validity of the results, in particular for the annihilation into neutral gauge bosons; attached tabulated results for the cross-sections
title: Esperanto - the ESR Guide to Clinical Audit: Current Status and Future Role Supporting BSS Transposition
Creators: name: Black, Jamess
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 6 - Clinical audit tool for imaging
subject: Action 8 - Radiation protection training and learning material
subject: Action 1 - Guidelines, implementation policies, and Clinical Decision Support (ESR iGuide)
subject: Radioprotection / Radiation dose
subject: Plain radiographic studies
subject: CT
subject: Radiation safety
subject: Quality assurance

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: The Basic Safety Standards Directive (BSSD) 2013/59/Euratom is a comprehensive piece of legislation designed to govern the use of ionising radiation 1 . The updated version, implemented in 2018, has a number of implications for European radiological...
Almost Hadamard matrices: general theory and examples
Creators: name: Banica, Teodor
name: Nechita, Ion
name: Zyczkowski, Karol
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We develop a general theory of "almost Hadamard matrices". These are by definition the matrices $H\in M_N(\mathbb R)$ having the property that $U=H/\sqrt{N}$ is orthogonal, and is a local maximum of the 1-norm on O(N). Our study includes a detailed discussion of the circulant case ($H_{ij}=γ_{j-i}$) and of the two-entry case ($H_{ij}\in{x,y}$), with the construction of several families of examples, and some 1-norm computations.
description: 24 pages
title: Most frequent causes of radiation dose alerts in CT and how to manage them
Creators: name: Sanguesa, Javiera
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Quality assurance
subject: Dosimetric comparison
subject: Radiation safety
subject: Dosimetry
subject: CT
subject: Radioprotection / Radiation dose
subject: Radiation physics
subject: Computer applications
subject: Action 8 - Radiation protection training and learning material
subject: Action 4 - Dose management systems

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: According to the ICRP, no radiation dose limits for CT should be used. Therefore, it is important to fulfill the ALARA concept, performing CT examinations with radiation doses as low as reasonably achievable, without sacrificing image quality....
title: Objectives of publications of the HERCA Working Group on Medical Applications in the transposition of the Euratom Directive 2013/59 in the medical field
Creators: name: Godthelp, Barbara C.
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Nuclear medicine conventional
subject: CT
subject: Nuclear medicine
subject: Radioprotection / Radiation dose
subject: Action 13 - Stakeholder engagement and collaboration
subject: Action 11 - Dialogue with industry
subject: Action 3 - Image quality assessment based on clinical indications
subject: Equipment
subject: Technical aspects
subject: Safety
subject: Occupational / Environmental hazards
subject: Radiotherapy techniques
subject: Quality assurance

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: Council Directive 2013/59/EURATOM lays down the basic safety standards for the protection against the dangers arising from exposure to ionising radiation. This includes the protection of workers, public and environment as well as protection of...
Amiota (Amiota) flagellata Okada 1971
Creators: name: Sidorenko, V. S.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Amiota
Amiota flagellata

description: Amiota (Amiota) flagellata Okada, 1971
MATERIAL. Russia: 4 ♂, Kamenushka River, Shkotovskii district, Primorskaya oblast', DVK, 19, 20.VII, 8.VIII 1937 (Montchadsky).
DISTRIBUTION. Russia (first record), Japan (Hokkaido, Honshu), Korea, China (Jilin) [2].
description: Published as part of Sidorenko, V. S., 2005, Additions To The Fauna Of Drosophilidae (Diptera) Of Russia And Ukraine, pp. 11-12 in Far Eastern Entomologist 147 on page 11, DOI: 10.5281/zenodo.10084971
Microtubules immuno-labeled with Alexa 647 with widefield images 20-24
Creators: name: SINGH, Manish
Publisher: name: Zenodo
Year: 2021
Subjects: shareloc.xyz
shareloc.xyz:dataset
dstorm
u373
microtubules
alexa-647
indirect-immuno-labeling
alpha-tubulin
2d
em-ccd
thunderstorm
gluox
pfa+gluta
smlm

description: Open in Shareloc.XYZ

description: dSTORM images of microtubules with widefield images, Alpha-tubulin immuno-labeled with Alexa 647 in U373 cells, reconstructed by ThunderSTORM plugin (Uploaded via https://shareloc.xyz)
title: Dose management system as a practical tool to establish local DRLs in digital mammography
Creators: name: Garcia Castañon, Paula
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 2 - Clinical diagnostic reference levels (DRLs)
subject: Action 4 - Dose management systems
subject: Breast
subject: Radioprotection / Radiation dose
subject: Mammography
subject: Dosimetry
subject: Technology assessment
subject: Dosimetric comparison

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: Mammography is the most effective technique for breast cancer detection, but entails by itself cancer induction risk; therefore, it is essential to optimize patient doses. European directive EURATOM 2013/59 (1) emphasizes the implementation and...
Agentive experience compatibilism
Creators: name: Deery, Oisin
Publisher: name: University of British Columbia
Year: 2013

description: Libertarians, who think that freedom is incompatible with determinism and we are free, claim that their view is descriptively right about how we view ourselves as agents who are free to do otherwise. Much of what compatibilists, who think that freedom is compatible with determinism, have written in recent years about the freedom to do otherwise has consisted in attempts to deflate these sorts of libertarian claims. Philosophers on each side thereby make claims about the nature of our experience and beliefs. These are empirical claims, which can be illuminated by empirical methods. In experiments that I ran with Matt Bedke and Shaun Nichols, our participants described their experience of being free to do otherwise as incompatibilist across a range of conditions. Compatibilists may dismiss these results by insisting that people are mistaken in their introspective judgments. Or they might insist that people only seem to have incompatibilist beliefs about freedom and determinism; in fact, these beliefs are about the compatibility of freedom and fatalism. I argue that both these compatibilist claims are false, at least in the forms that they currently take. Instead, I argue that compatibilists should concede that people's experience and beliefs are in part libertarian, but can still be accurate if determinism is true. First, I assume that experiences of being free to do otherwise have phenomenal content that is inaccurate if determinism is true, just as libertarians claim. Then I argue that such experiences also have phenomenal content that is accurate if determinism is true. So an experience with libertarian content can be accurate under determinism. Second, I argue that implicitly libertarian beliefs can be accurate, even assuming determinism. Only when one makes an explicit incompatibility judgment is one's belief false. Thus, implicitly libertarian beliefs are not incompatibilist. My view does not provide a full compatibilist theory of the ability to do otherwise. Still, on my view our experiences and beliefs concerning such freedom are consistent with determinism. My view also explains any temptation we may feel to judge our experience and beliefs as inconsistent with determinism.
The Stellar Initial Mass Function in Early-Type Galaxies From Absorption Line Spectroscopy. II. Results
Creators: name: Conroy, Charlie
name: van Dokkum, Pieter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The spectral absorption lines in early-type galaxies contain a wealth of information regarding the detailed abundance pattern, star formation history, and stellar initial mass function (IMF) of the underlying stellar population. Using our new population synthesis model that accounts for the effect of variable abundance ratios of 11 elements, we analyze very high quality absorption line spectra of 38 early-type galaxies and the nuclear bulge of M31. These data extend to 1um and they therefore include the IMF-sensitive spectral features NaI, CaII, and FeH at 0.82um, 0.86um and 0.99um, respectively. The models fit the data well, with typical rms residuals ~1%. Strong constraints on the IMF and therefore the stellar mass-to-light ratio, (M/L)_stars, are derived for individual galaxies. We find that the IMF becomes increasingly bottom-heavy with increasing velocity dispersion and [Mg/Fe]. At the lowest dispersions and [Mg/Fe] values the derived IMF is consistent with the Milky Way IMF, while at the highest dispersions and [Mg/Fe] values the derived IMF contains more low-mass stars (is more bottom-heavy) than even a Salpeter IMF. Our best-fit (M/L)_stars values do not exceed dynamically-based M/L values. We also apply our models to stacked spectra of four metal-rich globular clusters in M31 and find an (M/L)_stars that implies fewer low-mass stars than a Milky Way IMF, again agreeing with dynamical constraints. We discuss other possible explanations for the observed trends and conclude that variation in the IMF is the simplest and most plausible.
description: 16 pages, 13 figures, ApJ accepted
Flatness testing over singular bases
Creators: name: Adamus, Janusz
name: Seyedinejad, Hadi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Commutative Algebra (math.AC)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 13C11, 13H99, 13B10, 13P99, 32B99, 32S45

description: We show that non-flatness of a morphism f of complex-analytic spaces with a locally irreducible target Y of dimension n manifests in the existence of vertical components in the n-fold fibred power of the pull-back of f to the desingularization of Y. An algebraic analogue follows: Let R be a locally (analytically) irreducible finite type complex-algebra and an integral domain of Krull dimension n, and let S be a regular n-dimensional algebra of finite type over R (but not necessarily a finite R-module), such that the induced morphism of spectra is dominant. Then a finite type R-algebra A is R-flat if and only if the tensor product of S with the n-fold tensor power of A over R is a torsion-free R-module.
description: Published version
title: Strengthening comprehensive clinical audits in Diagnostic Radiology: The IAEA-QUAADRIL methodology
Creators: name: Delis, Harry
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Quality assurance
subject: Audit and standards
subject: Mammography
subject: CT
subject: Conventional radiography
subject: Radioprotection / Radiation dose
subject: Radiation physics
subject: Professional issues
subject: Action 6 - Clinical audit tool for imaging

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: The World Health Organization has defined Quality Assurance as “ an organized effort by the staff operating a facility to ensure that the diagnostic images produced are of sufficiently high quality so that they consistently provide adequate...
Proof of a stronger version of the AJ conjecture for torus knots
Creators: name: Tran, Anh T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 57N10 (Primary) 57M25 (Secondary)

description: For a knot $K$ in $S^3$, the $sl_2$-colored Jones function $J_K(n)$ is a sequence of Laurent polynomials in the variable $t$, which is known to satisfy non-trivial linear recurrence relations. The operator corresponding to the minimal linear recurrence relation is called the recurrence polynomial of $K$. The AJ conjecture \cite{Ga04} states that when reducing $t=-1$, the recurrence polynomial is essentially equal to the $A$-polynomial of $K$. In this paper we consider a stronger version of the AJ conjecture, proposed by Sikora \cite{Si}, and confirm it for all torus knots.
description: Very minor changes. To appear in Algebraic and Geometric Topology
Rational smoothness, cellular decompositions and GKM theory
Creators: name: Gonzales, Richard
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 14F43, 14L30 (Primary) 55N91, 14M15, 14F43 (Secondary)

description: We introduce the notion of Q-filtrable varieties: projective varieties with a torus action and a finite number of fixed points, such that the cells of the associated Bialynicki-Birula decomposition are all rationally smooth. Our main results develop GKM theory in this setting. We also supply a method for building nice combinatorial bases on the equivariant cohomology of any Q-filtrable GKM variety. Applications to the theory of group embeddings are provided.
description: 27 pages, minor changes in the exposition
Advances in synthetic aperture, compounded plane wave, and spatially encoded excitation techniques for fast ultrasonography
Creators: name: Kotowick, Kyle
Publisher: name: University of British Columbia
Year: 2013

description: Ultrasonography offers subcutaneous imaging at a fraction of the cost of magnetic resonance imaging (MRI) and without the ionizing radiation of X-ray or computed tomography (CT) imaging. In addition, ultrasound imaging machines are compact and portable, and do not require any sort of specialized environment to function. Ultrasonography is, however, limited by the relatively slow speed of sound and standard beamforming can only achieve low imaging frame rates (20 - 80 frames per second). This restricts its use in a number of applications that would otherwise benefit greatly from its use. For example, transient elastography, 3-dimensional volumetric imaging, and Doppler sonography would all benefit from higher frame rates. This thesis presents two new variations of fast imaging methods. The first is by combining two existing fast-imaging techniques, plane wave (PW) and synthetic aperture (SA), using an adaptive weighting algorithm to compound images generated from the techniques individually. This method improves image resolution and signal-to-noise ratio (SNR) without losing the higher frame rate of each, which is successfully demonstrated through experiments on a physical commercial ultrasound system. The second method for increasing frame rate involves two extensions on a spatial encoding technique proposed by Fredrik Gran and Jørgen Arendt Jensen in 2008; these extensions entailed implementing a compressed sensing algorithm to reduce the code length requirement presented in their paper and removing the non-imagable “deadzone” region that their method produces. These extensions are applicable for scenarios requiring high definition for a small set of high-reflectivity points in an otherwise dark region, such as intra-spinal needle guidance, and are demonstrated using the Field II ultrasound simulation software.