cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pentacentrus bituberus Liu et Shi 2011
Creators: name: Liu, Hao-Yu
name: Shi, Fu-Ming
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Haglotettigoniidae
Pentacentrus
Pentacentrus bituberus

description: Pentacentrus bituberus Liu et Shi, 2011
 Pentacentrus bituberus Liu & Shi, 2011: 3; Liu et al., 2014: 561.
 ADDITIONAL MATERIAL. China: Guangxi, Guilin, Longshen, Huaping, 10.VII 2015, 3♂, leg. Teng-Fei Qiu.
REMARKS. All types of this species original recorded from Guangxi, and herein is second record from Guangxi Zhuang Autonomous Region.
DISTRIBUTION. China (Guangxi, Guangdong).
description: Published as part of Liu, Hao-Yu & Shi, Fu-Ming, 2015, New And Little-Known Species Of The Genus Pentacentrus Saussure, 1878 (Orthoptera: Gryllidae) From Guangxi Zhuang Autonomous Region, China, pp. 19-23 in Far Eastern Entomologist 303 on page 22, DOI: 10.5281/zenodo.10084266
The algebra of $SL_3(\mathbb{C})$ conformal blocks
Creators: name: Manon, Christopher
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 14D20, 05E10

description: We construct and study a family of toric degenerations of the algebra of conformal blocks for a stable marked curve $(C, \vec{p})$ with structure group $SL_3(\mathbb{C}).$ We find that this algebra is Gorenstein. For the genus $0, 1$ cases we find the level of conformal blocks necessary to generate the algebra. In the genus 0 case we also find bounds on the degrees of relations required to present the algebra. Along the way we recover polyhedral rules for counting conformal blocks originally due to Senechal, Mathieu, Kirillov, and Walton.
description: 22 pages, 13 figures
Guided transport of ultracold gases of rubidium up to a room-temperature dielectric surface
Creators: name: Marchant, A L
name: Haendel, S
name: Wiles, T P
name: Hopkins, S A
name: Cornish, S L
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on the guided transport of an atomic sample along an optical waveguide up to a room-temperature dielectric surface. The technique exploits a simple hybrid trap consisting of a single beam dipole trap positioned ~125 μm below the field zero of a magnetic quadrupole potential. Transportation is realised by applying a moderate bias field (<12 G) to displace the magnetic field zero along the axis of the dipole trap. We use the technique to demonstrate that atomic gases may be precisely positioned at controlled distances from the surface with negligible heating or loss. This work forms an excellent basis for future studies of atom-surface interactions using ultracold atomic gases.
description: 13 pages, 5 figures
Acceleration of the shiftable O(1) algorithm for bilateral filtering and non-local means
Creators: name: Chaudhury, Kunal N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: A direct implementation of the bilateral filter [1] requires O(σ_s^2) operations per pixel, where σ_s is the (effective) width of the spatial kernel. A fast implementation of the bilateral filter was recently proposed in [2] that required O(1) operations per pixel with respect to σ_s. This was done by using trigonometric functions for the range kernel of the bilateral filter, and by exploiting their so-called shiftability property. In particular, a fast implementation of the Gaussian bilateral filter was realized by approximating the Gaussian range kernel using raised cosines. Later, it was demonstrated in [3] that this idea could be extended to a larger class of filters, including the popular non-local means filter [4]. As already observed in [2], a flip side of this approach was that the run time depended on the width σ_r of the range kernel. For an image with (local) intensity variations in the range [0,T], the run time scaled as O(T^2/σ^2_r) with σ_r. This made it difficult to implement narrow range kernels, particularly for images with large dynamic range. We discuss this problem in this note, and propose some simple steps to accelerate the implementation in general, and for small σ_r in particular. [1] C. Tomasi and R. Manduchi, "Bilateral filtering for gray and color images", Proc. IEEE International Conference on Computer Vision, 1998. [2] K.N. Chaudhury, Daniel Sage, and M. Unser, "Fast O(1) bilateral filtering using trigonometric range kernels", IEEE Transactions on Image Processing, 2011. [3] K.N. Chaudhury, "Constant-time filtering using shiftable kernels", IEEE Signal Processing Letters, 2011. [4] A. Buades, B. Coll, and J.M. Morel, "A review of image denoising algorithms, with a new one", Multiscale Modeling and Simulation, 2005.
description: 10 figures, 6 tables
NFIRAOS  Multiconjugate AO System for TMT
Creators: name: Herriot, Glen
name: Andersen, David
name: Atwood, Jenny
name: Byrnes, Peter
name: Boyer, Corinne
name: Caputa, Kris
name: Correia, Carlos
name: Dunn, Jennifer
name: Ellerbroek, Brent
name: Fitzsimmons, Joeleff
name: Gilles, Luc
name: Hickson, Paul
name: Hill, Alexis
name: Pazder, John
name: Reshetov, Vlad
name: Smith, Malcolm
name: Veran, Jean-Pierre
name: Wang, Lianqi
name: Wevers, Ivan
Publisher: name: Proceedings of the AO4ELT2 conference (Publisher: ONERA; Editors: J.-P. Véran, Y. Clénet, T. Fusco)
Year: 2011
Subjects: ADAPTIVE OPTICS
EXTREMELY LARGE TELESCOPES
PATHFINDERS
INSTRUMENTS
WAVEFRONT CORRECTORS
WAVEFRONT SENSING
LASER GUIDE STAR SYSTEMS
ATMOSPHERIC TURBULENCE
REAL-TIME CONTROL
MODELING
POST-PROCESSING

description: NFIRAOS, the Adaptive Optics system for the Thirty Meter Telescope, is a Multiconjugate
Adaptive Optics System of order 60x60 with two deformable mirrors and six laser guide
star wavefront sensors. NFIRAOS is 8 x 10 x 5 m (L x W x H) on a Nasmyth Platform and
supports three client instruments operating over 0.8 – 2.5 micro m wavelength range. In this
paper we discuss: NFIRAOS requirements and architecture; changes to NFIRAOS since the
last AO4ELT conference; interior details of NFIRAOS; interfaces to instruments;
integration and verification plans. Top-level science requirements include 50 per cent sky
coverage at the galactic pole with less than 187 nm wavefront error. Astrometry is an important
science driver – to minimize image distortion (0.0017 per cent), we have recently revised the
optical design to use four off-axis paraboloidal mirrors. We have vastly simplified the
laser WFS trombone optics and moved them inside the cold enclosure. To control image
magnification, differential magnification and tip/tilt/focus, NFIRAOS client instruments
have three low-order warfront sensors monitoring near-infrared natural guide stars. These
stars are sharpened by NFIRAOS, which assists sky coverage. NFIRAOS will have high
throughput and low thermal background – it will be cooled to -30 degrees C. The insulated walls
have a buried cold plate to intercept heat leakage and isothermalize the interior of
NFIRAOS. Instruments have stringent requirements on heat leakage and must provide their
own rotator and interface to NFIRAOS, including a rotating seal. For wavelength and flat
field calibration of client instruments, a NFIRAOS Science Calibration Unit (NSCU) feeds
light in the entrance window, through NFIRAOS, to instruments. Inside NFIRAOS are
deployable light sources simulating natural and laser guide stars, a focal plane mask
with pinholes illuminated by the NSCU, as well as a turbulence phase screen. A prototype
screen has been manufactured by magneto-rheological machining. We are currently updating
the NFIRAOS preliminary design.
Holographic Entanglement Entropy and Renormalization Group Flow
Creators: name: Albash, Tameem
name: Johnson, Clifford V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using holography, we study the entanglement entropy of strongly coupled field theories perturbed by operators that trigger an RG flow from a conformal field theory in the ultraviolet (UV) to a new theory in the infrared (IR). The holographic duals of such flows involve a geometry that has the UV and IR regions separated by a transitional structure in the form of a domain wall. We address the question of how the geometric approach to computing the entanglement entropy organizes the field theory data, exposing key features as the change in degrees of freedom across the flow, how the domain wall acts as a UV region for the IR theory, and a new area law controlled by the domain wall. Using a simple but robust model we uncover this organization, and expect much of it to persist in a wide range of holographic RG flow examples. We test our formulae in two known examples of RG flow in 3+1 and 2+1 dimensions that connect non-trivial fixed points.
description: 25 pages. 12 Figures. Corrected minor typos and clarified certain results
Molecular targeting of polo-like kinase 1 (PLK1) for the treatment of brain tumours
Creators: name: Lee, Cathy
Publisher: name: University of British Columbia
Year: 2013

description: Brain cancer is a disease that is difficult to treat and has a high mortality rate. Two of the major challenges facing current treatments are disease relapse and drug resistance. Disease relapse may be attributable to brain tumour initiating cells (BTICs), which are multi-potent stem-like cells endowed with the ability to self-renew and generate differentiated cells that form the bulk of a tumour. BTICs are notably resistant to conventional chemotherapy and radiation and may therefore survive treatments, repopulate new tumours and cause disease relapse. Failure to respond to Temozolomide (TMZ), a DNA alkylating agent used as a front-line therapy for glioma, is frequently observed in glioma patients with O⁶-methylguanine-DNA methyltransferase over-expression. Furthermore, despite being largely ineffective in the pediatric population, TMZ is routinely used in clinic due to the lack of therapeutic agents that cross the blood-brain-barrier. There is an imperative need to seek alternative therapeutic strategies to address these issues. In the studies described herein, we identified polo-like kinase 1 (PLK1) as a novel molecular target for the treatment of the most common malignant brain tumours in adults and children, glioblastoma multiforme (GBM) and medulloblastoma (MB), respectively. In our studies, PLK1 is highly expressed in GBM and MB cultured cell lines, tumour tissues and patient-derived primary isolates but not in the normal brain cells including astrocytes, neurons and human neural stem cells. Targeting PLK1 by siRNA or the small molecule inhibitor BI2536 suppressed cell growth and induced cell cycle arrest accompanied by apoptosis in both GBM and MB. Of note, PLK1 inhibition had the unique capacity of obliterating GBM and MB BTICs, as well as TMZ-resistant GBM cells. To further the study, we demonstrated that BI2536 delayed disease progression and prolonged the survival of mice bearing orthotopic GBM or MB brain tumours. In addition, we established the prognostic importance of PLK1 as an independent marker for patient survival in both GBM and MB, lending further support to targeting this kinase in brain cancer treatment.
title: Introduction of a figure of merit in digital mammography: Assessment of image quality and dosimetry
Creators: name: Marti-Bonmati, Luis
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 5 - Performance indicators for radiation protection management
subject: Radiation physics
subject: Mammography
subject: Physics
subject: Quality assurance

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: AIM: The purpose of this study was to jointly analyze image quality and dosimetry in digital mammography by introducing a figure of merit, non-based on the contrast-noise relation. INTRODUCTION: Breast cancer is the most frequent among Spanish women...
Vibration compensation for the ARGOS laser up-link path
Creators: name: Peter, D.
name: Gaessler, W.
name: Borelli, J.
name: Barl, L.
Publisher: name: Proceedings of the AO4ELT2 conference (Publisher: ONERA; Editors: J.-P. Véran, Y. Clénet, T. Fusco)
Year: 2011
Subjects: ADAPTIVE OPTICS
EXTREMELY LARGE TELESCOPES
PATHFINDERS
INSTRUMENTS
WAVEFRONT CORRECTORS
WAVEFRONT SENSING
LASER GUIDE STAR SYSTEMS
ATMOSPHERIC TURBULENCE
REAL-TIME CONTROL
MODELING
POST-PROCESSING

description: Present and future adaptive optics systems aim for the correction of the atmospheric turbulence over
a large field of view combined with large sky coverage. Thus they use multiple laser beacons on sky. Still usually
a guide star for correction of the tilt-aberrations is needed. For some fields even a tilt-star is not available. To
still be able to improve the image quality the laser beacons must not be affected by telescope vibrations on their
up-link path. For the ARGOS system the jitter of the beacons must be below 0".05. To achieve this a vibration
compensation system is necessary which runs at high speed. In this article the control algorithm for this system
and first laboratory tests of the algorithm are presented.
title: Calibration of CT attenuation values and contrast for liver characterization
Creators: name: Fitton, Isabelle
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 3 - Image quality assessment based on clinical indications
subject: Liver
subject: CT
subject: Diagnostic procedure
subject: Equipment
subject: Physics
subject: Image verification

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: Computed Tomography (CT) values characterize the linear attenuation coefficient of the tissue in each volume element relative to the µ-value of water. The Hounsfield Units (HU) or CT numbers are defined as a normalized index of X-ray attenuation...
Factorizing the hard and soft spectator scattering contributions for the nucleon form factor F_1 at large Q^2
Creators: name: Kivel, Nikolai
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the soft spectator scattering contribution for the FF $F_{1}$. We focus our attention on factorization of the hard-collinear scale $\sim QΛ$ corresponding to transition from SCET-I to SCET-II. We compute the leading order jet functions and find that the convolution integrals over the soft fractions are logarithmically divergent. This divergency is the consequence of the boost invariance and does not depend on the model of the soft correlation function describing the soft spectator quarks. Using as example a two-loop diagram we demonstrated that such a divergency corresponds to the overlap of the soft and collinear regions. As a result one obtains large rapidity logarithm which must be included in the correct factorization formalism. We conclude that a consistent description of the factorization for $F_{1}$ implies the end-point collinear divergencies in the hard and soft spectator contributions, i.e. convolution integrals with respect to collinear fractions are not well-defined. Such scenario can only be realized when the twist-3 nucleon distribution amplitude has specific end-point behavior which differs from one expected from the evolution of the nucleon distribution amplitude. Such behavior leads to the violation of the collinear factorization for the hard spectator scattering contribution. We suggest that the soft spectator scattering and chiral symmetry breaking provide the mechanism responsible for the violation of collinear factorization in case of form factor $F_{1}$.
description: 25 pages, 6 figures, text is improved, few typos corrected, one figure added, statement about end-point behavior of the nucleon DA is formulated more accurately
The Universe as Home: Exploring the tension between climate change and the space race through somatic experiences, speculative design, and interactive performance
Creators: name: Maranan, Diego S.
name: Kuchner, Ulrike
name: Nasser, Mona
name: Steyaert, Pieter
name: Verschuren, Jeroen
name: Vermeulen, Angelo
Publisher: name: Zenodo
Year: 2023

description: In this presentation, we describe the process and outcomes of a two-week workshop with participants of the 2022 Winter School at the Royal Institute for Theatre, Cinema and Sound (RITCS) in Brussels, which explored the tension between the climate crisis and the new space race. As workshop facilitators, we proceeded from the assumption that while it might seem that confronting climate change and investing in space exploration are strategies opposite to each other, they are really both concerned with survival and with the search for humanity’s place in this universe. To this end, we invited workshop participants (students from RITCS’ theatre, music, and radio programmes) to act as radical agents and to develop multisensory expressions and imaginations beyond what we can ordinarily see. The initial prompts for the workshop were a series of provocative questions: Could participants create a multisensory performance in which audiences really, deeply experience the complex and invisible forces that are shaping the planet’s climate? Would it be possible to craft an experience that helps the audience feel in their body the vastness, emptiness and incomprehensible age of the universe? Participants were led through a series of discussions, speculative design sessions, and somatic experience explorations to prime their creative process. The final outcome was a prototype of a multisensory, multimedia, site-specific, interactive performance that showcased the unique blend of skills and disciplines of the workshop participants, and offered a experiential, embodied way to reimagine the universe as home.
Spinor states on a curved infinite disc with non-zero spin-connection fields
Creators: name: Lukman, D.
name: Borstnik, N. S. Mankoc
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the paper of Lukman, Mankoc Borstnik, Nielsen (NJP 13 (2011) 103027) one step towards the realistic Kaluza-Klein[like] theories was made by presenting the case of a spinor in $d=(1+5)$ compactified on an (formally) infinite disc with the zweibein which makes a disc curved on an almost $S^2$ and with the spin connection field which allows on such a sphere only one massless spinor state of a particular charge, coupling the spinor chirally to the corresponding Kaluza-Klein gauge field. The solutions for the massless spinor state were found for a range of spin connection fields, as well as the massive ones for a particular choice of the spin connection field. In this paper we present the massless and massive spinor states for the whole range of parameters of the spin connection field, which allow only one massless solution.
description: 21 pages, 8 figures, iopart style, some printing mistakes corrected and some explanations improved due to IOP referee suggestions
central canal of Xenopus nuclear pore complex
Creators: name: Orestis Faklaris
Publisher: name: Zenodo
Year: 2021
Subjects: shareloc.xyz
shareloc.xyz:dataset
dstorm
wga
nuclear-pore-complex
alexa-647
smlm

description: Open in Shareloc.XYZ

description: dSTORM of central canal of Xenopus nuclear pore complex (Uploaded via https://shareloc.xyz)
title: Fluoroscopy protocols in children in clinical practice in a latin american hospital
Creators: name: Ulla, Marina
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 7 - Radiation protection of children
subject: Paediatric
subject: Radioprotection / Radiation dose
subject: Fluoroscopy
subject: Cystography / Uretrography
subject: Barium enema
subject: Barium meal
subject: Workforce

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: The use of fluoroscopic studies in children still represents a benefit for the diagnosis and treatment of certain pathologies. But its use generates concern for the known biological effects generated by exposure to ionizing radiation (1,2). It is...
Pentacentrus emarginatus Liu et Shi 2014
Creators: name: Liu, Hao-Yu
name: Shi, Fu-Ming
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Haglotettigoniidae
Pentacentrus
Pentacentrus emarginatus

description: Pentacentrus emarginatus Liu et Shi, 2014
 Pentacentrus emarginatus Liu et al., 2014: 562.
 ADDITIONAL MATERIAL. China: Guangxi, Mt. Pinglong, Mucaijianchazhan, 26.VI 2015, 1♂, leg. Teng-Fei Qiu.
REMARKS. Holotype and paratype of this species respectively recorded from Guangxi and Jiangxi, and herein is supplied new data on distribution.
DISTRIBUTION. China (Guangxi, Jiangxi).
description: Published as part of Liu, Hao-Yu & Shi, Fu-Ming, 2015, New And Little-Known Species Of The Genus Pentacentrus Saussure, 1878 (Orthoptera: Gryllidae) From Guangxi Zhuang Autonomous Region, China, pp. 19-23 in Far Eastern Entomologist 303 on page 22, DOI: 10.5281/zenodo.10084266
Invariant measures concentrated on countable structures
Creators: name: Ackerman, Nathanael
name: Freer, Cameron
name: Patel, Rehana
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic (math.LO)
subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 03C98, 60G09, 37L40, 05C80, 03C75, 62E10, 05C63

description: Let L be a countable language. We say that a countable infinite L-structure M admits an invariant measure when there is a probability measure on the space of L-structures with the same underlying set as M that is invariant under permutations of that set, and that assigns measure one to the isomorphism class of M. We show that M admits an invariant measure if and only if it has trivial definable closure, i.e., the pointwise stabilizer in Aut(M) of an arbitrary finite tuple of M fixes no additional points. When M is a Fraisse limit in a relational language, this amounts to requiring that the age of M have strong amalgamation. Our results give rise to new instances of structures that admit invariant measures and structures that do not.
description: 46 pages, 2 figures. Small changes following referee suggestions
RAVEN, a Multi-Object Adaptive Optics technology and science demonstrator
Creators: name: Andersen, Dave
name: Bradley, Colin
name: Lardiere, Olivier
name: Blain, Celia
name: Gamroth, Darryl
name: Ito, Meguru
name: Jackson, Kate
name: Lach, P.
name: Nash, Reston
name: Pham, Laurie
name: Robertson, Dave
name: Veran, Jean-Pierre
Publisher: name: Proceedings of the AO4ELT2 conference (Publisher: ONERA; Editors: J.-P. Véran, Y. Clénet, T. Fusco)
Year: 2011
Subjects: ADAPTIVE OPTICS
EXTREMELY LARGE TELESCOPES
PATHFINDERS
INSTRUMENTS
WAVEFRONT CORRECTORS
WAVEFRONT SENSING
LASER GUIDE STAR SYSTEMS
ATMOSPHERIC TURBULENCE
REAL-TIME CONTROL
MODELING
POST-PROCESSING

description: The University of Victoria Adaptive Optics Laboratory, the Herzberg Institute of
Astrophysics and Subaru Observatory are building a Multi-Object Adaptive Optics (MOAO) technology
and science demonstrator called Raven. Raven will be mounted on the Subaru NIR Nasmyth platform and
will feed the IRCS imager and spectrograph. The baseline design calls for three natural guide star (NGS)
wavefront sensors (WFS), one on-axis laser guide star (LGS) WFS and two science pickoff arms that will
patrol a 3.5 arcminute diameter field of regard (FOR). Sky coverage is an important consideration for a
science demonstrator. End-to-end simulations of Raven show that a 10x10 subaperture adaptive optics
(AO) system can meet the science requirements, i.e. 30 per cent of the energy ensquared (EE) within a 140mas
slit using three R less than 14 NGSs, and almost 40 per cent EE with the addition of the central LGS. We present here an
overview of the Raven project.
title: Dose management system: a must-have for every hospital
Creators: name: Ansems, Janneke
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Quality assurance
subject: Radiation safety
subject: Equipment
subject: Diagnostic procedure
subject: PACS
subject: Fluoroscopy
subject: CT
subject: Radioprotection / Radiation dose
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: In February 2016the first modality in Bravis Hospital (Roosendaal, The Netherlands) was connected to a dosemanagement system (Sectra DoseTrack, Sectra AB Sweden).Since then10 modalities have been added(3 CT scanners, 1 PET-CT scanner, 2 C-arms, 2...
Vibration characterization and mitigation for the Gemini MCAO system GeMS
Creators: name: Rodriguez, Ignacio
name: Neichel, Benoit
name: Hartung, Markus
name: Haywards, Thomas
name: Christou, Julian
name: Rigaut, Francois
name: Guzman, Dani
name: Osborn, James
name: Guesalaga, Andres
Publisher: name: Proceedings of the AO4ELT2 conference (Publisher: ONERA; Editors: J.-P. Véran, Y. Clénet, T. Fusco)
Year: 2011
Subjects: ADAPTIVE OPTICS
EXTREMELY LARGE TELESCOPES
PATHFINDERS
INSTRUMENTS
WAVEFRONT CORRECTORS
WAVEFRONT SENSING
LASER GUIDE STAR SYSTEMS
ATMOSPHERIC TURBULENCE
REAL-TIME CONTROL
MODELING
POST-PROCESSING

description: We describe the methods used to mitigate the vibrations encountered in some of the instruments of the Gemini South telescope. We found a persistent vibration at 55Hz with others occurring occasionally at 14 and 100Hz. Two types of AO controllers -Kalman and H∞- were implemented in the MCAO Tip-Tilt loop. First results show clear improvements in vibration rejection and overall performance for these advanced controllers over the classical integrator. It is shown that the reduction in the standard deviation of residual slopes is highly dependent on turbulence, wind speed and vibration conditions, ranging –in slopes RMS- from an almost negligible reduction for high speed wind to a factor of 5 for a combination of low wind and strong vibrations.
title: Image Gently in Nuclear Medicine at Ten Years
Creators: name: Fahey, Frederic
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 7 - Radiation protection of children
subject: Action 8 - Radiation protection training and learning material
subject: Action 13 - Stakeholder engagement and collaboration
subject: Paediatric
subject: Radioprotection / Radiation dose
subject: Nuclear medicine conventional
subject: Radiation safety
subject: Health policy and practice
subject: Education
subject: Education and training
subject: Quality assurance

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: Nuclear medicine is a well-established and valuable clinical diagnostic tool in several areas of medicine including urology, neurology, orthopedics, and oncology (1). While the radiation exposure from nuclear medicine studies is on par, and often...
title: How to become a high-performance dose excellence center: Current concepts and applications of modern dose management system in SBU Fatih Sultan Mehmet Training and Research Hospital
Creators: name: Karakas, Hakki Muammer
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 10 - EuroSafe Imaging Stars
subject: Action 4 - Dose management systems
subject: Action 2 - Clinical diagnostic reference levels (DRLs)
subject: Radioprotection / Radiation dose
subject: CT
subject: Audit and standards
subject: Dosimetry
subject: Radiation safety
subject: Dosimetric comparison
subject: Quality assurance

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: Computed tomography (CT) is considered as one of the greatest advancements in medicine.Although, it provides very valuable diagnostic information that considerably affect clinical management of many diseases, the relatively high level of ionizing...
Background Free Quantum Gravity based on Conformal Gravity and Conformal Field Theory on M^4
Creators: name: Hamada, Ken-ji
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study four dimensional quantum gravity formulated as a certain conformal field theory at the ultraviolet fixed point, whose dynamics is described by the combined system of Riegert-Wess-Zumino and Weyl actions. Background free nature comes out as quantum diffeomorphism symmetry by quantizing the conformal factor of the metric field nonperturbatively. In this paper, Minkowski background M^4 is employed in practice. The generator of quantum diffeomorphism that forms conformal algebra is constructed. Using it, we study the composite scalar operator that becomes a good conformal field. We find that physical fields are described by such scalar fields with conformal dimension 4. Consequently, tensor fields outside the unitarity bound are excluded. Computations of quantum algebra on M^4 are carried out in the coordinate space using operator products of the fields. The nilpotent BRST operator is also constructed.
description: 43 pages, eqs.(3.9) and (6.18) corrected
The TMT Adaptive Optics Program
Creators: name: Ellerbroek, Brent
name: Adkins, Sean
name: Andersen, David
name: Atwood, Jenny
name: Bastard, Arnaud
name: Bo, Yong
name: Boucher, Marc-Andre
name: Boyer, Corinne
name: Byrnes, Peter
name: Caputa, Kris
name: Chen, Shanqui
name: Correia, Carlos
name: Cousty, Raphael
name: Fitzsimmons, Joeleff
name: Gilles, Luc
name: Gregory, James
name: Herriot, Glen
name: Hickson, Paul
name: Hill, Alexis
name: Pazder, John
name: Pages, Hubert
name: Pfrommer, Thomas
name: Reshetov, Vladimir
name: Roberts, Scott
name: Sinquin, Jean-Christophe
name: Schoeck, Matthias
name: Smith, Malcolm
name: Veran, Jean-Pierre
name: Wang, Lianqi
name: Wei, Kai
name: Wevers, Ivan
Publisher: name: Proceedings of the AO4ELT2 conference (Publisher: ONERA; Editors: J.-P. Véran, Y. Clénet, T. Fusco)
Year: 2011
Subjects: ADAPTIVE OPTICS
EXTREMELY LARGE TELESCOPES
PATHFINDERS
INSTRUMENTS
WAVEFRONT CORRECTORS
WAVEFRONT SENSING
LASER GUIDE STAR SYSTEMS
ATMOSPHERIC TURBULENCE
REAL-TIME CONTROL
MODELING
POST-PROCESSING

description: We provide an overview of the Thirty Meter Telescope (TMT) AO program, with an emphasis upon
the progress made since the first AO4ELT conference held in 2009.
Vortex core magnetization dynamics induced by thermal excitation
Creators: name: Machado, Tiago S.
name: Rappoport, Tatiana G.
name: Sampaio, Luiz C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the effect of temperature on the dynamic properties of magnetic vortices in small disks. Our calculations use a stochastic version of the Landau-Lifshitz-Gilbert (LLG) equation, valid for finite temperatures well below the Curie critical temperature. We show that a finite temperature induces a vortex precession around the center of the disk, even in the absence of other excitation sources. We discuss the origin and implications of the appearance of this new dynamics. We also show that a temperature gradient plays a role similar to that of a small constant magnetic field.
description: 4 pages, 3 figures
Mass spectral imaging of clinical samples using deep learning
Creators: name: Brilanti, Marco
Publisher: name: Imperial College London
Year: 2022

description: A better interpretation of tumour heterogeneity and variability is vital for the improvement of novel diagnostic techniques and personalized cancer treatments. Tumour tissue heterogeneity is characterized by biochemical heterogeneity, which can be investigated by unsupervised metabolomics. Mass Spectrometry Imaging (MSI) combined with Machine Learning techniques have generated increasing interest as analytical and diagnostic tools for the analysis of spatial molecular patterns in tissue samples. Considering the high complexity of data produced by the application of MSI, which can consist of many thousands of spectral peaks, statistical analysis and in particular machine learning and deep learning have been investigated as novel approaches to deduce the relationships between the measured molecular patterns and the local structural and biological properties of the tissues. Machine learning have historically been divided into two main categories: Supervised and Unsupervised learning. In MSI, supervised learning methods may be used to segment tissues into histologically relevant areas e.g. the classification of tissue regions in H&E (Haemotoxylin and Eosin) stained samples. Initial classification by an expert histopathologist, through visual inspection enables the development of univariate or multivariate models, based on tissue regions that have significantly up/down-regulated ions. However, complex data may result in underdetermined models, and alternative methods that can cope with high dimensionality and noisy data are required. Here, we describe, apply, and test a novel diagnostic procedure built using a combination of MSI and deep learning with the objective of delineating and identifying biochemical differences between cancerous and non-cancerous tissue in metastatic liver cancer and epithelial ovarian cancer. The workflow investigates the robustness of single (1D) to multidimensional (3D) tumour analyses and also highlights possible biomarkers which are not accessible from classical visual analysis of the H&E images. The identification of key molecular markers may provide a deeper understanding of tumour heterogeneity and potential targets for intervention.
GRBs by thin persistent precessing lepton Jets: the long life GRB110328 and the Neutrino signal
Creators: name: Fargion, Daniele
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gamma Ray Burst sources are apparently evolving around us in a harder and brighter samples at far and far redshift. The average output may range from a near Supernova (nearest events) output to a billion time that power for most distant events. Such a tuned evolution around us is not an anti-copernican signature. It is a clear imprint of a off-axis (nearest sources) beaming versus a rarest in-axis blazing (far redshift sources) by a thin relativistic beam (Lorentz factor up ten thousand or above, corresponding to micro-nano steradian solid angle). The main consequence is the rarer and rarer presences of hardest gamma events (hundreds MeV, GeVs, tens GeVs), nearly one over a twenty, partially opaque by IR-gamma cut-off, observed with difficulty at largest redshift inside their thinner beamed jets. For this reason these rarest tens GeV beamed events, even observed by EGRET and Fermi, are hardly seen at hundred GeV by Cherenkov telescope (Magic,Hess,Veritas) on Earth. For the same reason and because tens GeV neutrino energy is below Icecube thresholds (threshold above hundreds GeV) we have not been observed yet a neutrino GRB. However if the GRBs primaries contains tens GeV neutrino traces (at comparable GRB gamma rate) their presence may rise in few years at Deep Core (a more dense array inside ICECUBE) detector whose lower threshold, ranges just one or few tens GeV energy. Moreover the very recent X ray persistent GRB110328, whose understanding was first associated to a cannibal star AGN eating, but now evolved to a cannibal AGN feeding beamed jet, it is, more naturally consistent to our thin jet GRB (by few solar mass compact source, not any AGN) spinning, precessing and blazing whose geometry is partially aligned and stable (than other GRBs) to us: its decay law and its average output is fully consistent with our earliest proposals.
description: 7 pages, 5 figures, 1 table; http://sait.oat.ts.astro.it/MSAIt830112/PDF/2012MmSAI..83..312F.pdf
title: Dose optimization of thoracolumbar spine CT in pediatric emergencies
Creators: name: ARSLAN, SEVTAP
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 7 - Radiation protection of children
subject: Musculoskeletal spine
subject: CT
subject: Diagnostic procedure
subject: Trauma

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: The number of computed tomography (CT) examinations has been significantly increased in recent years (1). Lower doses in newly manufactured devices and reduced motion artifacts through fast gantry rotation cycle times led to increased utilization of...
Colonial encounters, narrative production, and the possibilities of the personal : exploring historical memory and meaning in central North Dakota, 1911-1955
Creators: name: Bridenstine, Stephen A.
Publisher: name: University of British Columbia
Year: 2013

description: In the winter of 1804-1805, the men of the United States Corps of Discovery or Lewis and Clark Expedition resided with the Mandan and Hidatsa Indians at their villages in present-day North Dakota. The hospitality the expedition received from these Indigenous residents in the form of material aid and the guide Sacagawea helped establish their critical role in what would become one of America's premier foundation myths by the early twentieth century. This thesis argues that both the Three Affiliated Tribes (the modern Mandan, Hidatsa, and Arikara nation) and the Euro-American settler residents of Mercer County, North Dakota deployed the narratives of hospitality in the Lewis and Clark story to further their own community interests in the early twentieth century. For the settlers this meant progress and a prosperous settler future while for the Three Tribes it meant stopping progress, in the form of Garrison Dam. The first section explores the long history of colonial interaction between the Three Affiliated Tribes and numerous non-Indigenous visitors to their homeland on the upper Missouri River. These personal encounters with the Lewis and Clark Expedition and later settlers resulted in both positive and negative experiences for the Indigenous residents. The second section analyzes booster rhetoric, published histories, and a Lewis and Clark themed historical pageant produced by leading citizens of the settler community in Mercer County, North Dakota. It demonstrates how a colonialist discourse of progress, Manifest Destiny, and a vanishing Indian race rendered Indigenous people as historic helpers in the establishment of a colonial state (despite their acknowledged contemporary presence). The third section shows how representatives of the Three Affiliated Tribes deployed their own narrative of hospitable colonial encounters during U.S. Senate hearings to try and block the construction of the Garrison Dam that threatened to flood out their reservation. In the end, this thesis argues that despite a tradition of hospitality and respect expressed in historical narratives, a stronger colonialist discourse determined both the main message of the settler narratives and the decision to construct Garrison Dam.
title: Clinical dose reference levels: developing and application
Creators: name: Saltybaeva, Natalia
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 2 - Clinical diagnostic reference levels (DRLs)
subject: Action 4 - Dose management systems
subject: Thorax
subject: Radiation physics
subject: Radioprotection / Radiation dose
subject: CT
subject: Physics
subject: Radiation safety
subject: Statistics
subject: FOS: Mathematics
subject: Dosimetric comparison

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: National dose reference levels (NDRLs) are normally set on the basis of the typical doses observed in wide scale (national) surveys [1]. NDRLs represent the dose values averaged over a broad range of healthcare facilities and do not take into...
Hamilton's turns as visual tool-kit for designing of single-qubit unitary gates
Creators: name: Simon, B. Neethi
name: Chandrashekar, C. M.
name: Simon, Sudhavathani
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Unitary evolutions of a qubit are traditionally represented geometrically as rotations of the Bloch sphere, but the composition of such evolutions is handled algebraically through matrix multiplication [of SU(2) or SO(3) matrices]. Hamilton's construct, called turns, provides for handling the latter pictorially through the as addition of directed great circle arcs on the unit sphere S$^2 \subset \mathbb{R}^3$, resulting in a non-Abelian version of the parallelogram law of vector addition of the Euclidean translation group. This construct is developed into a visual tool-kit for handling the design of single-qubit unitary gates. As an application, it is shown, in the concrete case wherein the qubit is realized as polarization states of light, that all unitary gates can be realized conveniently through a universal gadget consisting of just two quarter-wave plates (QWP) and one half-wave plate (HWP). The analysis and results easily transcribe to other realizations of the qubit: The case of NMR is obtained by simply substituting $π/2$ and $π$ pulses respectively for QWPs and HWPs, the phases of the pulses playing the role of the orientation of fast axes of these plates.
description: 16 Pages, 14 Figures, Published version
title: An audit of patient dose for CT Brains performed in Our Lady of Lourdes Hospital, Drogheda
Creators: name: Barry, Conor
Publisher: name: ESR EuroSafe Imaging
Year: 2019
Subjects: subject: Action 2 - Clinical diagnostic reference levels (DRLs)
subject: Action 6 - Clinical audit tool for imaging
subject: CNS
subject: CT
subject: Audit and standards
subject: Radiation safety
subject: Dosimetry
subject: Dosimetric comparison

description: Background/introduction Description of activity and work performed Conclusion and recommendations Personal/organisational information References
description: Background/introduction: With the increasing awareness of radiation protection and safety, we are striving to reduce radiation dosages across all imaging modalities. National Diagnostic Reference levels (NDRLs)are currently in place in Ireland to guide us on radiation...
A deep search for the host galaxies of GRBs with no detected optical afterglow
Creators: name: Rossi, A.
name: Klose, S.
name: Ferrero, P.
name: Greiner, J.
name: Arnold, L. A.
name: Gonsalves, E.
name: Hartmann, D. H.
name: Updike, A. C.
name: Kann, D. A.
name: Krühler, T.
name: Palazzi, E.
name: Savaglio, S.
name: Schulze, S.
name: Afonso, P. M. J.
name: Amati, L.
name: Castro-Tirado, A. J.
name: Clemens, C.
name: Filgas, R.
name: Gorosabe, J.
name: Hunt, L. K.
name: Yoldas, A. Küpcü
name: Masetti, N.
name: Nardini, M.
name: Guelbenzu, A. Nicuesa
name: E., F. Olivares
name: Pian, E.
name: Rau, A.
name: Schady, P.
name: Schmidl, S.
name: Yoldas, A.
name: Postigo, A. de Ugarte
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-Ray Bursts can provide information about star formation at high redshifts. Even in the absence of a optical/near-infrared/radio afterglow, the high detection rate of X-ray afterglows by swift/XRT and its localization precision of 2-3 arcsec facilitates the identification and study of GRB host galaxies. We focus on the search for the host galaxies of a sample of 17 bursts with XRT error circles but no detected long-wavelength afterglow. Three of these events can also be classified as truly dark bursts: the observed upper limit on the optical flux of the afterglow was less than expected based on the X-ray flux. Our study is based on deep R and K-band observations performed with ESO/VLT instruments, supported by GROND and NEWFIRM. To be conservative, we searched for host galaxies in an area with a radius twice the 90% swift/XRT error circle. For 15 of the 17 bursts we find at least one galaxy inside the doubled XRT error circle. In seven cases we discover extremely red objects in the error circles. The most remarkable case is the host of GRB 080207 which as a colour of R-K~4.7 mag (AB), one of the reddest galaxies ever associated with a GRB. As a by-product of our study we identify the optical afterglow of GRB 070517A. Optically dim afterglows result from cosmological Lyman drop out and dust extinction, but the former process is only equired for a minority of cases (<1/3). Extinction by dust in the host galaxies might explain all other events. Thereby, a seemingly non-negligible fraction of these hosts are globally dust-enshrouded, extremely red galaxies. This suggests that bursts with optically dim afterglows trace a subpopulation of massive starburst galaxies, which are markedly different from the main body of the GRB host galaxy population, namely the blue, subluminous, compact galaxies.
description: 29 pages, 31 figures, accepted for publication in A&A
Multiscaling analysis of ferroelectric domain wall roughness
Creators: name: Guyonnet, J.
name: Agoritsas, E.
name: Bustingorry, S.
name: Giamarchi, T.
name: Paruch, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Using multiscaling analysis, we compare the characteristic roughening of ferroelectric domain walls in PZT thin films with numerical simulations of weakly pinned one-dimensional interfaces. Although at length scales up to a length scale greater or equal to 5 microns the ferroelectric domain walls behave similarly to the numerical interfaces, showing a simple mono-affine scaling (with a well-defined roughness exponent), we demonstrate more complex scaling at higher length scales, making the walls globally multi-affine (varying roughness exponent at different observation length scales). The dominant contributions to this multi-affine scaling appear to be very localized variations in the disorder potential, possibly related to dislocation defects present in the substrate.
description: 5 pages, 4 figures
Relativistic positioning: four-dimensional numerical approach in Minkowski space-time
Creators: name: Puchades, Neus
name: Sáez, Diego
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We simulate the satellite constellations of two Global Navigation Satellite Systems: Galileo (EU) and GPS (USA). Satellite motions are described in the Schwarzschild space-time produced by an idealized spherically symmetric non rotating Earth. The trajectories are then circumferences centered at the same point as Earth. Photon motions are described in Minkowski space-time, where there is a well known relation, Coll, Ferrando & Morales-Lladosa (2010), between the emission and inertial coordinates of any event. Here, this relation is implemented in a numerical code, which is tested and applied. The first application is a detailed numerical four-dimensional analysis of the so-called emission coordinate region and co-region. In a second application, a GPS (Galileo) satellite is considered as the receiver and its emission coordinates are given by four Galileo (GPS) satellites. The bifurcation problem (double localization) in the positioning of the receiver satellite is then pointed out and discussed in detail.
description: 16 pages, 9 figures, published (online) in Astrophys. Space Sci