cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uniruledness of some moduli spaces of stable pointed curves
Creators: name: Benzo, Luca
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H10, 14H51

description: We prove uniruledness of some moduli spaces $\bar{M}_{g,n}$ of stable curves of genus $g$ with $n$ marked points using linear systems on nonsingular projective surfaces containing the general curve of genus $g$. Precisely we show that $\bar{M}_{g,n}$ is uniruled for $g=12$ and $n \leq 5$, $g=13$ and $n \leq 3$, $g=15$ and $n \leq 2$. We then prove that the pointed hyperelliptic locus $H_{g,n}$ is uniruled for $g \geq 2$ and $n \leq 4g+4$. In the last part we show that a nonsingular complete intersection surface does not carry a linear system containing the general curve of genus $g \geq 16$ and if it carries a linear system containing the general curve of genus $12 \leq g \leq 15$ then it is canonical.
description: final version, minor improvements in the exposition
title: PASH as breast imaging chameleon
Creators: name: Gomes, Andressa
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Hyperplasia / Hypertrophy
subject: Connective tissue disorders
subject: Diagnostic procedure
subject: Ultrasound
subject: MR
subject: Mammography
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review PASH epidemiology and pathophysiology; To discuss the spectrum of PASH imaging appearance in mammography, ultrasound and MRI; To confront PASH with other breast lesions imaging findings, highlighting possible pitfalls and imaging...
Non-detection of the Tooth Fairy at Optical Wavelengths
Creators: name: Armstrong, Eve
Publisher: name: arXiv
Year: 2012
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We report a non-detection, to a limiting magnitude of V = 18.4 (9), of the elusive entity commonly described as the Tooth Fairy. We review various physical models and conclude that follow-up observations must precede an interpretation of our result.
description: 5 pages, 3 figures
title: DEPRECATED: AN INTELLIGENT NAVIGATION SYSTEM FOR AN AUTONOMOUS UNDERWATER VEHICLE
Creators: name: Loebis, Dedy
Publisher: name: University of Plymouth
Year: 2004

description: The work in this thesis concerns with the development of a novel multisensor data fusion (MSDF) technique, which combines synergistically Kalman filtering, fuzzy logic and genetic algorithm approaches, aimed to enhance the accuracy of an autonomous underwater vehicle (AUV) navigation system, formed by an integration of global positioning system and inertial navigation system (GPS/INS). The Kalman filter has been a popular method for integrating the data produced by the GPS and INS to provide optimal estimates of AUVs position and attitude. In this thesis, a sequential use of a linear Kalman filter and extended Kalman filter is proposed. The former is used to fuse the data from a variety of INS sensors whose output is used as an input to the later where integration with GPS data takes place. The use of an adaptation scheme based on fuzzy logic approaches to cope with the divergence problem caused by the insufficiently known a priori filter statistics is also explored. The choice of fuzzy membership functions for the adaptation scheme is first carried out using a heuristic approach. Single objective and multiobjective genetic algorithm techniques are then used to optimize the parameters of the membership functions with respect to a certain performance criteria in order to improve the overall accuracy of the integrated navigation system. Results are presented that show that the proposed algorithms can provide a significant improvement in the overall navigation performance of an autonomous underwater vehicle navigation. The proposed technique is known to be the first method used in relation to AUV navigation technology and is thus considered as a major contribution thereof.
I. Gambaschidze/A. Hauptmann/R. Slotta/U.Yalçin (Hrsg.), Georgien. Schätze aus dem Land des Goldenen Vlies
Creators: name: Heidelberg, Universität
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2021

description: Rezension zu: I. Gambaschidze/A. Hauptmann/R. Slotta/U.Yalçin (Hrsg.), Georgien. Schätze aus dem Land des Goldenen Vlies. Katalog der Ausstellung des Deutschen Bergbau-Museums Bochum in Verbindung mit dem Zentrum für Archäologische Forschungen der Georgischen Akademie der Wissenschaften Tbilissi (Bochum, Deutsches Bergbau-Museum 2001)
description: Acta Praehistorica et Archaeologica, Bd. 35 (2003)
Electric generation of vortices in an exciton-polariton superfluid
Creators: name: Flayac, H.
name: Pavlovic, G.
name: Kaliteevski, M. A.
name: Shelykh, I. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have theoretically demonstrated the on demand electric generation of vortices in an exciton-polariton superfluid. Electric pulses applied to a horseshoe-shaped metallic mesa, deposited on top of the microcavity, generate a non-cylindrically symmetric solitonic wave in the system. Breakdown of its wavefront at focal points leads to the formation of vortex-antivortex pairs which subsequently propagate in the superfluid. The trajectory of these vortex dipoles can be controlled by applying a voltage to additional electrodes. They can be confined within channels formed by metallic stripes and unbound by a wedged mesa giving birth to grey solitons. Finally single static vortices can be generated using a single metallic plate configuration.
description: 7 pages and 7 figures
title: Tuberculosis: The invading disease of the central nervous system.
Creators: name: Cruz Marmolejo, Miguel
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Infection
subject: Abscess
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Neuroradiology spine
subject: Neuroradiology brain
subject: CNS

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Review the epidemiology and pathogenesis of dissemination of tuberculosis in the central nervous system. The radiologist and radiology residents must be familiarized with clinical features, diagnosis, and the multiple imaging modality findings in...
Hilmar Schickler, Heilige Ordnungen. Zu keltischen Funden im Württembergischen Landesmuseum
Creators: name: Heidelberg, Universität
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2021

description: Rezension zu: Hilmar Schickler, Heilige Ordnungen. Zu keltischen Funden im Württembergischen Landesmuseum. Mit Beiträgen von Pia Eschbaumer, Jutta Fischer, Gabriele Kurz, Ute Steffgen, Werner Elsässer, Jochen Haas, Friedrich Klein, Dieter Nitsche, Ludwig Pauli (f), Wolfgang Schmid, Manfred Schröder, Joachim Women Württembergisches Landesmuseum, Stuttgart 2001. 294 Seiten, zahlreiche Schwarz-Weiß-Abbildungen
description: Acta Praehistorica et Archaeologica, Bd. 35 (2003)
Sources of straylight in the post-focus imaging instrumentation of the Swedish 1-m Solar Telescope
Creators: name: Löfdahl, M. G.
name: Scharmer, G. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Recently measured straylight PSFs in Hinode/SOT make granulation contrast in observed data and synthetic MHD data consistent. Data from earthbound telescopes also need accurate correction for straylight and fixed optical aberrations. We aim to develop a method for measuring straylight in the post-focus imaging optics of the SST. We removed any influence from atmospheric turbulence and scattering by using an artificial target. We measured integrated straylight from three different sources in the same data: ghost images caused by reflections in the near-detector optics, PSFs corresponding to wavefront aberrations in the optics by using phase diversity, and extended scattering PSF wings of unknown origin by fitting to a number of different kernels. We performed the analysis separately in the red and blue beams. Wavefront aberrations, which possibly originate in the bimorph mirror of the adaptive optics, are responsible for a wavelength-dependent straylight of 20-30% of the intensity in the form of PSFs with 90% of the energy contained within a radius of 0.6". There are ghost images that contribute at the most a few % of straylight. The fraction of other sources of scattered light from the post-focus instrumentation of the SST is only \sim10^-3 of the recorded intensity. This contribution has wide wings with FWHM \sim16" in the blue and \sim34" in the red. The present method seems to work well for separately estimating wavefront aberrations and the scattering kernel shape and fraction. Ghost images can be expected at the same level for solar observations. The high-order wavefront aberrations possibly caused by the AO bimorph mirror dominate the measured straylight but are likely to change when imaging the Sun. We can therefore make no firm statements about the origin of straylight in SST data, but strongly suspect wavefront aberrations to be the dominant source.
description: This version with a note added in proof
Troia - Traum und Wirklichkeit. Begleitband zur gleichnamigen Ausstellung in Stuttgart
Creators: name: Hertel, Dieter
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2021

description: Rezension zu: Troia - Traum und Wirklichkeit. Begleitband zur gleichnamigen Ausstellung in Stuttgart. Hrsg. Archäologisches Landesmuseum Baden-Württemberg. 2002 Konrad Theiss-Verlag Stuttgart. 496 Seiten und ca. 500 Abbildungen
description: Acta Praehistorica et Archaeologica, Bd. 35 (2003)
The phylogeny and evolution of two ancient lineages of aquatic plants
Creators: name: Iles, William James Donaldson
Publisher: name: University of British Columbia
Year: 2013

description: In my thesis I aim to improve our phylogenetic and evolutionary knowledge of two ancient and distantly related groups of aquatic flowering plants, Hydatellaceae and Alismatales. While the phylogeny of monocots has received fairly intense scrutiny for two decades, some parts of its diversification have been less frequently investigated. One such lineage is the order Alismatales, which defines one of the deepest splits in monocot evolution. Many families of Alismatales are aquatic or semi-aquatic, and they have been implicated in historical discussions of monocot origins. I evaluate inter-familial relationships in the order, considering a suite of 17 plastid genes for 31 Alismatales taxa for all 13 recognized families. This study improves on our understanding of, and confidence in, higher-order Alismatales relationships. I also uncovered convergent gene loss of plastid-encoded subunits for the NADH dehydrogenase complex. I then expand monocot coverage outside Alismatales by including unpublished and newly sequenced data for other orders. This large-scale sample facilitated a re-evaluation of monocot phylogeny and molecular dating, the latter using 25 fossil constraints. Previously included in the monocot order Poales, Hydatellaceae are a small family of ephemeral aquatics relatively recently found to be the sister group of water lilies (Cabombaceae and Nymphaeaceae). I present the first molecular phylogeny of the family and evaluate aspects of the family's morphological evolution. I show how sexual system shifts are associated with shifts in other reproductive traits. I also infer a temporal scale for Hydatellaceae diversification using a two-step Bayesian approach. I use the resulting dated tree to address biogeographic patterns and aspects of niche evolution. I show that its "Gondwanan" distribution is the result of long-distance dispersal and not continental rifting, and demonstrate strong phylogenetic niche conservatism in the family. These studies expand our understanding of evolution in Hydatellaceae, and provide a substantial update to our understanding of Alismatales (and more generally monocot) phylogeny and divergence times.
title: Role of quantitative analysis of apparent diffusion coefficient (ADC) values as a predictor of malignancy in breast lesions
Creators: name: Khatian, Shaista
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Tissue characterisation
subject: Imaging sequences
subject: MR
subject: Breast

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Breast cancer is the most common malignant disease occurring in women with life time prevalence of12.4 % 1 . Pakistanhas highest breast cancer incidence rates in Asia(1: 9) 1,2 . MRI is used as problem solving tool in breast imaging. Diffusion...
Two charged strangeonium-like structures observable in the $Y(2175) \to ϕ(1020)π^{+} π^{-}$ process
Creators: name: Chen, Dian-Yong
name: Liu, Xiang
name: Matsuki, Takayuki
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Via the Initial Single Pion Emission (ISPE) mechanism, we study the $ϕ(1020)π^{+}$ invariant mass spectrum distribution of $Y(2175) \to ϕ(1020)π^{+} π^{-}$. Our calculation indicates there exist a sharp peak structure ($Z_{s1}^+$) close to the $K\bar{K}^\ast$ threshold and a broad structure ($Z_{s2}^+$) near the $K^\ast\bar{K}^\ast$ threshold. In addition, we also investigate the $ϕ(1680) \to ϕ(1020)π^{+} π^{-}$ process due to the ISPE mechanism, where a sharp peak around the $K\bar{K}^\ast$ threshold appears in the $ϕ(1020)π^{+}$ invariant mass spectrum distribution. We suggest to carry out the search for these charged strangeonium-like structures in future experiment, especially Belle II, Super-B and BESIII.
description: 7 pages, 5 figures. Accepted by Eur. Phys. J. C
Additional file 1 of The 2021 Dutch Working Party on Antibiotic Policy (SWAB) guidelines for empirical antibacterial therapy of sepsis in adults
Creators: name: Sieswerda, Elske
name: Bax, Hannelore I.
name: Hoogerwerf, Jacobien J.
name: de Boer, Mark G. J.
name: Boermeester, Marja
name: Bonten, Marc J. M.
name: Dekker, Douwe
name: van Wijk, Roy Gerth
name: Juffermans, Nicole P.
name: Kuindersma, Marnix
name: van der Linden, Paul D.
name: Melles, Damian C.
name: Pickkers, Peter
name: Schouten, Jeroen A.
name: Rebel, Jasper R.
name: van Zanten, Arthur R. H.
name: Prins, Jan M.
name: Wiersinga, W. Joost
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. sTable 1. Alternative empirical treatment strategies in sepsis and low estimated risk of involvement of 3GCR-E. sTable 2. Alternative empirical treatment strategies in sepsis and increased or high estimated risk of involvement of 3GCR-E. sTable 3. Recommended iv doses of empirical antibacterial treatment for sepsis.
Gamma ray constraints on Decaying Dark Matter
Creators: name: Cirelli, Marco
name: Moulin, Emmanuel
name: Panci, Paolo
name: Serpico, Pasquale D.
name: Viana, Aion
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive new bounds on decaying Dark Matter from the gamma ray measurements of (i) the isotropic residual (extragalactic) background by Fermi and (ii) the Fornax galaxy cluster by HESS. We find that those from (i) are among the most stringent constraints currently available, for a large range of DM masses and a variety of decay modes, excluding half-lives up to ~10^26 to few 10^27 seconds. In particular, they rule out the interpretation in terms of decaying DM of the e^\pm spectral features in Pamela, Fermi and HESS, unless very conservative choices are adopted. We also discuss future prospects for CTA bounds from Fornax which, contrary to the present HESS constraints of (ii), may allow for an interesting improvement and may become better than those from the current or future extragalactic Fermi data.
description: 18 pages, 3 figures. v2: constraint procedure slightly modified, conclusions unchanged; some references and some clarifications added; matches version published on PRD
Zonotopal algebra and forward exchange matroids
Creators: name: Lenz, Matthias
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 05A15, 05B35, 13B25, 16S32, 41A15 (Primary), 05C31, 41A63, 47F05 (Secondary)

description: Zonotopal algebra is the study of a family of pairs of dual vector spaces of multivariate polynomials that can be associated with a list of vectors X. It connects objects from combinatorics, geometry, and approximation theory. The origin of zonotopal algebra is the pair (D(X),P(X)), where D(X) denotes the Dahmen-Micchelli space that is spanned by the local pieces of the box spline and P(X) is a space spanned by products of linear forms. The first main result of this paper is the construction of a canonical basis for D(X). We show that it is dual to the canonical basis for P(X) that is already known. The second main result of this paper is the construction of a new family of zonotopal spaces that is far more general than the ones that were recently studied by Ardila-Postnikov, Holtz-Ron, Holtz-Ron-Xu, Li-Ron, and others. We call the underlying combinatorial structure of those spaces forward exchange matroid. A forward exchange matroid is an ordered matroid together with a subset of its set of bases that satisfies a weak version of the basis exchange axiom.
description: 34 pages, 4 figures, minor corrections, same as journal version (up to layout)
title: MR imaging of genital smooth muscle tumors. Unusual locations and rare manifestations
Creators: name: Misiego Trabado, Lidia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Diagnostic procedure
subject: MR
subject: Genital / Reproductive system female
subject: Pelvis

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Describe the unusual locations and rare manifestations of genital smooth muscle tumors. Recognize the MR imaging findings useful to guide the diagnosis and...
Bericht über die Arbeit der Kommission zur Erforschung von Sammlungen archäologischer Funde und Unterlagen aus dem nordöstlichen Mitteleuropa (KAFU) vom 1.7.2001 bis 30.6.2002
Creators: name: Menghin, Wilfried
name: Gringmuth-Dallmer, Eike
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2021

description: Acta Praehistorica et Archaeologica, Bd. 35 (2003)
Поселення з керамікою волинцевського типу на Київщині
Creators: name: Орлов, Руслан
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 430101
subject: Archaeological science

description: Орлов Р.С. Поселення з керамікою волинцевського типу на Київщині — Археологічні дослідження на Україні в 1969 р. Випуск 4, К., 1972, с.236-241.Settlements with ceramics of the Volyntsev type in the Kyiv region
Rebirth of X-ray Emission from the Born-Again Planetary Nebula A 30
Creators: name: Guerrero, M. A.
name: Ruiz, N.
name: Hamann, W. -R.
name: Chu, Y. -H.
name: Todt, H.
name: Schoenberner, D.
name: Oskinova, L.
name: Gruendl, R. A.
name: Steffen, M.
name: Blair, W. P.
name: Toalá, J. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The planetary nebula (PN) A30 is believed to have undergone a very late thermal pulse resulting in the ejection of knots of hydrogen-poor material. Using HST images we have detected the angular expansion of these knots and derived an age of 850+280-150 yr. To investigate the spectral and spatial properties of the soft X-ray emission detected by ROSAT, we have obtained Chandra and XMM-Newton observations of A30. The X-ray emission from A30 can be separated into two components: a point-source at the central star and diffuse emission associated with the hydrogen-poor knots and the cloverleaf structure inside the nebular shell. To help us assess the role of the current stellar wind in powering this X-ray emission, we have determined the stellar parameters of the central star of A 30 using a non-LTE model fit to its optical and UV spectrum. The spatial distribution and spectral properties of the diffuse X-ray emission is suggestive that it is generated by the post-born-again and present fast stellar winds interacting with the hydrogen-poor ejecta of the born-again event. This emission can be attributed to shock-heated plasma, as the hydrogen-poor knots are ablated by the stellar winds, under which circumstances the efficient mass-loading of the present fast stellar wind raises its density and damps its velocity to produce the observed diffuse soft X-rays. Charge transfer reactions between the ions of the stellar winds and material of the born-again ejecta has also been considered as a possible mechanism for the production of diffuse X-ray emission, and upper limits on the expected X-ray production by this mechanism have been derived. The origin of the X-ray emission from the central star of A 30 is puzzling: shocks in the present fast stellar wind and photospheric emission can be ruled out, while the development of a new, compact hot bubble confining the fast stellar wind seems implausible.
description: 29 pages, 11 figures, 4 tables; accepted for publication by ApJ
title: What the radiologist should not miss at the first interpretation of a posttraumatic whole body scanner
Creators: name: Szabo, Timea
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Emergency
subject: Abdomen
subject: Arteries / Aorta
subject: CT
subject: CT-Angiography
subject: Computer Applications-3D
subject: Medico-legal issues
subject: Acute
subject: Dissection
subject: Trauma

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this review is to present a check list with the life threatening lesions not to miss at the first read of a posttraumatic body scanner, and proposes a second lecture, which focuses on the non-vital posttraumatic lesions and the medical...
title: DEPRECATED: The role of Oil in Economic Development -The case of Libya (1970-2010).
Creators: name: Elwerfelli, Ali Hassan
Publisher: name: Plymouth University
Year: 2016
Subjects: subject: Co-integration
subject: Resource curse
subject: Dutch disease
subject: Libya
subject: Real exchange rate
subject: Institutional Quality
subject: PhD

description: Abstract The objectives of this thesis are to: (1) examine if the resource curse exists in the context of Libya; (2) assess the role of institutions in avoiding or minimising the resource curse, and; (3) evaluate institutional and economic reforms required, and the best options to diversify the economy from oil, hence avoid the resource curse in Libya. To achieve these, three approaches are applied, (i) a three country comparative analysis; (ii) Libya country-level time-series analysis, and; (iii) institutional descriptive analysis. This thesis uses time-series data and annual datasets covering 1970-2010. Johansen’s co-integration is used to establish the long-run equilibrium relationship among the variables in the models. The Johansen co-integration test, based on the Trace and Maximum Eigenvalue statistics, is applied. In the first approach, the three case studies included in the study are Nigeria, Norway and UAE, with outcomes suggesting that Norway managed to avoid the Dutch disease, the UAE show no major signs of the resource curse, Norway and the UAE have largely managed to overcome Dutch disease, while Nigeria suffers a management curse. The first model suggests that Libya may experience a resource curse, but this may not be as a result of an appreciation of the real exchange rate. A 1% increase in the oil price will cause the Libyan exchange rate to increase (depreciate) by 1.41%. The country could potentially suffer from Dutch disease, but no evidence can be brought by the first model alone. In an attempt to reinforce the first analysis, the second model examined the sectoral impacts of the Dutch disease. Three relations are estimated; tradable sectors (manufacturing and agricultural), and non-tradable sectors (construction and services). These were all found to have been affected by oil revenue. This therefore confirms the existence of Dutch disease in Libya. The descriptive statistics analysis is used alongside five governance indicators: political stability, government effectiveness, and regulatory quality, rule of law and control of corruption. It is concluded that the quality of institutions in Libya affects economic growth negatively. The study holds several implications for policy-makers.
title: MR imaging of the knee in acute injures, a biomechanical approach: our experience.
Creators: name: De Lorenzo Poz, Micaela
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal joint
subject: Trauma
subject: Extremities
subject: MR
subject: Education
subject: Athletic injuries

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To illustrate MR imaging in knee acute injuries through a biomechanical approach according to our experience. 1. To review the most important anatomic structures of the knee involve in traumatic injuries and synthetize the most common traumatic...
Green functions and twist correlators for $N$ branes at angles
Creators: name: Pesando, Igor
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the Green functions and correlator functions for N twist fields for branes at angles on T^2 and we show that there are N-2 different configurations labeled by an integer M which is roughly associated with the number of obtuse angles of the configuration. In order to perform this computation we use a SL(2,R) invariant formulation and geometric constraints instead of Pochammer contours. In particular the M=1 or M=N-1 amplitude can be expressed without using transcendental functions. We determine the amplitudes normalization from N -> N-1 reduction without using the factorization into the untwisted sector. Both the amplitudes normalization and the OPE of two twist fields are unique (up to one constant) when the ε 1-εsymmetry is imposed. For consistency we find also an infinite number of relations among Lauricella hypergeometric functions.
description: 40 pages, 13 figures; V2 published version with misprints and a minor error corrected
"verlorene" Gräberfeld von Anduln, Memelgebiet (heute Ėgliškiai-Anduliai, West-Litauen)
Creators: name: Bitner-Wróblewska, Anna
name: Bliujienė, Audronė
name: Wróblewski, Wojciech
Publisher: name: Acta Praehistorica et Archaeologica
Year: 2021

description: Acta Praehistorica et Archaeologica, Bd. 35 (2003)
title: Axillary ultrasound assessment in locally advanced ductal breast cancer before and after neoadjuvant chemotherapy.
Creators: name: Alberdi, Nerea
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Breast
subject: Lymph nodes
subject: Oncology
subject: Ultrasound
subject: Biopsy
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Breast cancer is the most common malignant tumor in women after non-melanocytic skin cancer and the leading cause of cancer death among them[1]. Locally advanced breast cancer constitutes a heterogeneous entity that includes advanced-stage primary...
title: Mechanical thrombectomy for posterior circulation stroke treatment: a comparative analysis with results from anterior circulation
Creators: name: del Castillo Arango, Karen
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Obstruction / Occlusion
subject: Ischaemia / Infarction
subject: Thrombolysis
subject: Stents
subject: Angioplasty
subject: CT-Angiography
subject: Catheter arteriography
subject: Neuroradiology brain
subject: Interventional vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To assess the clinical and technical effectiveness of the endovascular treatment of the posterior fossa and what variables influence this effectiveness. To assess the safety of endovascular treatment of posterior fossa and variables that influences...
Anoctamin 9 determines Ca2+ signals during activation of T-lymphocytes
Creators: name: Schreiber, Rainer
name: Ousingsawat, Jiraporn
name: Kunzelmann, Karl
Publisher: name: Universität Regensburg
Year: 2025
Subjects: subject: lymphocytes, T-cells, T-cell receptor, TCR, immunological synapse, anoctamin 9, ANO9, TMEM16J
subject: 570 Biowissenschaften, Biologie

description: Background: Activation of T-cells is initiated by an increase in intracellular Ca2+,
which underlies positive and negative regulation. Because the phospholipid
scramblase and ion channel ANO9 (TMEM16J) was shown previously to
regulated Ca2+ signals in renal epithelial cells, we asked whether ANO9
demonstrates a similar regulation in T-cells.
Methods: We used measurements of the intracellular Ca2+ concentration to
examine the effects of ANO9 on intracellular Ca2+ signaling and demonstrated
expression of ANO9 and its effects on cellular and molecular parameters.
Results: ANO9 was found to be expressed in human lymphocytes, including the
Jurkat T-lymphocyte cell line and mouse lymphocytes. ANO9 has been shown to
affect intracellular Ca2+ signals in renal epithelial cells. Here we demonstrate the
essential role of ANO9 during initiation of intracellular Ca2+ signals in Jurkat Tcells
and isolated mouse lymphocytes. ANO9 is essential for the initial rise in
intracellular Ca2+ due to influx of extracellular Ca2+ through store-operated
ORAI1 Ca2+ entry channels. ANO9 is indispensable for T-cell function,
independent on whether cells are activated by stimulation of the T-cell
receptor with CD3-antibody or by PMA/phytohemagglutinin.
Conclusions: Upon activation of T-cells and formation of the immunological
synapse, ANO9 recruits the Ca2+-ATPase (PMCA) to the plasma membrane, which
is supported by the scaffolding protein discs large 1 (DLG1). PMCAs maintain low
Ca2+ levels near ORAI1 channels thereby suppressing Ca2+-inhibition of ORAI1 and
thus retaining store-operated Ca2+ entry (SOCE). It is suggested that ANO9 has a
role in interorganelle communication and regulation of cellular protein trafficking,
which probably requires its phospholipid scramblase function.
title: Personalised examination protocols related to clinical indication in unenhanced thoracic computed tomography
Creators: name: Kopp, Markus
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Radioprotection / Radiation dose
subject: CT
subject: Radiation safety

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Contemporary computed tomography (CT) of the chest is a very common examination with high clinical implications. To minimize stochastic risk of malignancy due to radiation dose every CT examination shouldhave the lowest radiation exposure as...
title: Formulation of a clinical score to improve appropriateness of cardiac magnetic resonance (CMR) in patients with premature ventricular contractions (PVC)
Creators: name: rosella, francesco
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cardiac
subject: MR
subject: MR-Angiography
subject: Experimental investigations
subject: Statistics
subject: FOS: Mathematics
subject: Dysplasias

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Aim of this study is to evaluate the prevalence of miocardial structural alterations in patients with ventricular ectopic beats and negative diagnostic work-up, and to improve appropriateness of...
title: DEPRECATED: Exploring the Factors which underpin Young Drivers' Over-Representation in Road Traffic Collisions
Creators: name: Weston, Lauren
Publisher: name: Plymouth University
Year: 2016
Subjects: young drivers
reward sensitivity
message framing
road safety intervention
risky driving

description: Worldwide, young drivers are involved in more road traffic collisions than any other age group (Taubman & Katz, 2012). Comprehensive driver training and various forms of pre- and- post-test road safety interventions (RSIs) are in place, but young drivers continue to be involved in more at-fault, fatal collisions than older, newly qualified drivers (e.g. Emmerson, 2008; Braitman et al, 2008; Clarke et al, 2010). The evidence base to date is mixed regarding why young drivers are at a heightened risk of collision and so this thesis aims to provide further understanding about the factors underpinning young drivers’ engagement in risky driving. An evaluation of a young driver RSI, found that young males were less likely than young females to report safer attitudes and intentions after attending the RSI. We considered that this may be due to young males’ behaviour being motivated by a desire to seek rewards (e.g. the thrill of risky driving) rather than a fear of punishment which forms the basis of traditional RSIs. Two subsequent studies were conducted to ascertain whether a heightened sensitivity to reward might underpin the risk-taking behaviour of those most at risk. We found that young males and females scoring high on reward sensitivity reported engaging in more road traffic violations and displayed slower reaction times on a driving game; suggesting that young people may have a heightened sensitivity to reward, in general, and concurrently tend to accept a higher degree of risk than other drivers. We also found that reward sensitive young drivers rated road safety messages framed in terms of financial gains as most effective, suggesting that financial incentives may be a potential route to engage young drivers in the future. The findings from another study provided insight into the precise mechanisms at play in the relationship between young drivers and their peer passengers, and the evaluation of the pilot peer-to-peer RSI showed how it might be possible to improve young drivers’ intentions to drive safely by modifying the norm that risky driving is an appropriate way to attain social prestige within a peer group. The thesis offers a significant contribution to the literature by establishing empirically the effect of reward sensitivity on young drivers’ engagement in risky driving and suggesting multiple ways to better improve young drivers’ safety in the future.
BPS invariants of semi-stable sheaves on rational surfaces
Creators: name: Manschot, Jan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: BPS invariants are computed, capturing topological invariants of moduli spaces of semi-stable sheaves on rational surfaces. For a suitable stability condition, it is proposed that the generating function of BPS invariants of a Hirzebruch surface takes the form of a product formula. BPS invariants for other stability conditions and other rational surfaces are obtained using Harder-Narasimhan filtrations and the blow-up formula. Explicit expressions are given for rank <4 sheaves on a Hirzebruch surface or the projective plane. The applied techniques can be applied iteratively to compute invariants for higher rank.
description: 26 pages, version submitted to journal
title: The ubiquitous nature of diffuse large B cell lymphoma (DLBCL): a pictoral review
Creators: name: Tincey, Sophia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Lymphoma
subject: Education and training
subject: Diagnostic procedure
subject: Biopsy
subject: MR
subject: Digital radiography
subject: CT
subject: Oncology
subject: Lymph nodes

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: DLBCL primarily affects the lymph nodes, however it is not uncommon for these patients to develop extranodal sites of disease Recognition of both nodal and extranodal sites of DLBCL on mulitmodality imaging is essential for accurate...
Improved precision on the radius of the nearby super-Earth 55 Cnc e
Creators: name: Gillon, M.
name: Demory, B. -O.
name: Benneke, B.
name: Valencia, D.
name: Deming, D.
name: Seager, S.
name: Lovis, C.
name: Mayor, M.
name: Pepe, F.
name: Queloz, D.
name: Segransan, Damien
name: Udry, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report on new transit photometry for the super-Earth 55 Cnc e obtained with Warm Spitzer/IRAC at 4.5 microns. An individual analysis of these new data leads to a planet radius of 2.21-0.16+0.15 Rearth, in good agreement with the values previously derived from the MOST and Spitzer transit discovery data. A global analysis of both Spitzer transit time-series improves the precision on the radius of the planet at 4.5 microns to 2.20+-0.12 Rearth. We also performed an independent analysis of the MOST data, paying particular attention to the influence of the systematic effects of instrumental origin on the derived parameters and errors by including them in a global model instead of performing a preliminary detrending-filtering processing. We deduce an optical planet radius of 2.04+0.15 Rearth from this reanalysis of MOST data, which is consistent with the previous MOST result and with our Spitzer infrared radius. Assuming the achromaticity of the transit depth, we performed a global analysis combining Spitzer and MOST data that results in a planet radius of 2.17+-0.10 Rearth (13,820+-620 km). These results point to 55 Cnc e having a gaseous envelope overlying a rocky nucleus, in agreement with previous works. A plausible composition for the envelope is water which would be in super-critical form given the equilibrium temperature of the planet.
description: 7 pages, 7 figures. Submitted to A&A on 21/10/2011. Accepted for publication in A&A on . 28/12/2011. Accepted version uploaded
Bachelard, une anthropologie de l’homme intégral
Creators: name: Wunenburger, Jean-Jacques
Publisher: name: Università degli  Studi di Milano
Year: 2012
Subjects: Anthropology, Imagination, Rationality, Verticality

description: Bachelard displays throughout his epistemological and esthetical work a particular anthropology. However this anthropology has never been systemically structured in a book but has been only fragmented in his analyses on the formation and transformation of concepts and images. The bachelardian man has a complex nature that mobilises every dimension of the subject: his body and his mind but also his affectivity, his will and his imagination. It is this image of an integral man that we will try to appropriate in this paper.
description: Altre Modernità, 2012: NUMERO SPECIALE Bachelard e la plasticità della materia
(Re)remembering the inner city : cultural production, reflexivity, and Vancouver's heritage areas
Creators: name: Mckenzie, Murray Hugh
Publisher: name: University of British Columbia
Year: 2013

description: Cultural production constitutes a significant force in the reconstruction, reterritorialization, and reimaging of the postindustrial inner city, the privileged site of clustered production within a reconfigured metropolitan space economy. This has been best demonstrated within older precincts notably characterized by the adaptive reuse of heritage structures, often to the extent of the comprehensive restoration of entire blocks or subareas. The unique material characteristics of these enduring new industrial districts have led to an association of cultural production with a heritage built environment, generating an alluring and paradoxical aesthetic where the brick and iron of an older industrial vernacular mixes with the auras of technology, globalization, and modernity. Following the work of scholars who have introduced spatiality and materiality to the cultural industries research domain, this thesis addresses the reflexive relationship that cultural producers maintain with the unique material and semiotic characteristics of these enduring new industrial districts, in which heritage imageries and signifiers of collective memory inform creative personas, processes, and outputs. This ‘reflexive project of the self’ influences the maintenance of the built environment and has the capacity to alter imageries and collective memory wherever signifiers are re-associated or obscured. Drawing on interviews in Vancouver, British Columbia, as well as on a broad literature review incorporating sources on cultural production, the aesthetics of residential gentrification, and the ‘city of collective memory’; this paper seeks to assess a range of responses to the history of Vancouver’s inner city landscapes. The analysis demonstrates how Vancouver’s historical imageries have been romanticized and reinterpreted to inform a mythology of cultural production in the city. Our conclusions will be of interest to geographers attempting to ‘place’ cultural production within their understanding of the changing landscapes of the twenty-first century city, as well as to planners in need of a more critical interpretation of the dynamics undergirding the insistent upgrading of production districts.
title: Aristotle on mathematical objects
Creators: name: Gühler, Janine
Publisher: name: University of St Andrews
publisherIdentifier: https://ror.org/02wn5qz54
publisherIdentifierScheme: ROR
Year: 2015

description: My thesis is an exposition and defence of Aristotle’s philosophy of mathematics. The first part of my thesis is an exposition of Aristotle’s cryptic and challenging view on mathematics and is based on remarks scattered all over the corpus aristotelicum. The thesis’ central focus is on Aristotle’s view on numbers rather than on geometrical figures. In particular, number is understood as a countable plurality and is always a number of something. I show that as a consequence the related concept of counting is based on units. In the second part of my thesis, I verify Aristotle’s view on number by applying it to his account of time. Time presents itself as a perfect test case for this project because Aristotle defines time as a kind of number but also considers it as a continuum. Since numbers and continuous things are mutually exclusive this observation seems to lead to an apparent contradiction. I show why a contradiction does not arise when we understand Aristotle properly. In the third part, I argue that the ontological status of mathematical objects, dubbed as materially [hulekos, ÍlekÀc] by Aristotle, can only be defended as an alternative to Platonism if mathematical objects exist potentially enmattered in physical objects. In the fourth part, I compare Aristotle’s and Plato’s views on how we obtain knowledge of mathematical objects. The fifth part is an extension of my comparison between Aristotle’s and Plato’s epistemological views to their respective ontological views regarding mathematics. In the last part of my thesis I bring Frege’s view on numbers into play and engage with Plato, Aristotle and Frege equally while exploring their ontological commitments to mathematical objects. Specifically, I argue that Frege should not be mistaken for a historical Platonist and that we find surprisingly many similarities between Frege and Aristotle. After having acknowledged commonalities between Aristotle and Frege, I turn to the most significant differences in their views. Finally, I defend Aristotle’s abstractionism in mathematics against Frege’s counting block argument. This whole project sheds more light on Aristotle’s view on mathematical objects and explains why it remains an attractive view in the philosophy of mathematics.
General method for calculating the universal conductance of strongly correlated junctions of multiple quantum wires
Creators: name: Rahmani, Armin
name: Hou, Chang-Yu
name: Feiguin, Adrian
name: Oshikawa, Masaki
name: Chamon, Claudio
name: Affleck, Ian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a method to extract the universal conductance of junctions of multiple quantum wires, a property of systems connected to reservoirs, from static ground-state computations in closed finite systems. The method is based on a key relationship, derived within the framework of boundary conformal field theory, between the conductance tensor and certain ground state correlation functions. Our results provide a systematic way of studying quantum transport in the presence of strong electron-electron interactions using efficient numerical techniques such as the standard time-independent density-matrix renormalization-group method. We give a step-by-step recipe for applying the method and present several tests and benchmarks. As an application of the method, we calculate the conductance of the M fixed point of a Y junction of Luttinger liquids for several values of the Luttinger parameter $g$ and conjecture its functional dependence on $g$.
description: 27 pages, 28 figures, published version
Dispersive Estimates in R^3 with Threshold Resonances
Creators: name: Beceanu, Marius
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35J10, 47D08

description: We prove dispersive estimates in R^3 for the Schroedinger evolution generated by the Hamiltonian H = -Δ+V, under optimal decay conditions on V, in the presence of zero energy eigenfunctions and resonances.
description: 45 pages. Substantially changed from previous version. Now includes the case of zero energy eigenfunctions. The title of the published version has been changed to "Dispersive Estimates in R^3 with Threshold Eigenstates and Resonances"
Le soleil derrière le vitrail du meurtrier: l’étude des éléments envoûtants dans l’Emploi du temps de Michel Butor
Creators: name: Kotowska, Joanna
Publisher: name: Università degli  Studi di Milano
Year: 2012

description: Le soleil derrière le vitrail du meurtrier: l’étude des éléments envoûtants dans l’Emploi du temps de Michel Butor
description: Altre Modernità, 2012: NUMERO SPECIALE Bachelard e la plasticità della materia