cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Black lenses in string theory
Creators: name: Kunduri, Hari K.
name: Lucietti, James
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new supersymmetric, asymptotically flat, black hole solution to five-dimensional U(1)^3-supergravity which is regular on and outside an event horizon of lens space topology L(2,1). The solution has seven independent parameters and uplifts to a family of 1/8-supersymmetric D1-D5-P black brane solutions to Type IIB supergravity. The decoupling limit is asymptotically AdS(3) x S^3 x T^4, with a near-horizon geometry that is a twisted product of the near-horizon geometry of the extremal BTZ black hole and L(2,1) x T^4, although it is not (locally) a product space in the bulk. We show that the decoupling limit of a special case of the black lens is related to that of a black ring by spectral flow, thereby supplying an account of its entropy. Analogous solutions of U(1)^N-supergravity are also presented.
description: v2. 11 pages, 1 figure, substantial additions: new result which relates a special case of the black lens to a black ring by spectral flow; section on domain of outer communication; minor edits and additions in the main text; included Appendix on black lens solution to U(1)^N supergravity with detailed regularity analysis; references added
title: Infuse-a-port system in treatment of intrahepatic biliary stenosis
Creators: name: Sponza, Massimo
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Biliary Tract / Gallbladder
subject: Interventional non-vascular
subject: Percutaneous
subject: Fluoroscopy
subject: Catheters
subject: Treatment effects
subject: Transplantation
subject: Liver

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: After liver transplantation, intrahepatic biliary stenosis represents a great engagement for it’s treatment, because of the high probability of recurrence and the need for repeated endoscopic or percutaneous treatments. The placement of...
Primordial gravitational waves from the space-condensate inflation model
Creators: name: Koh, Seoktae
name: Lee, Bum-Hoon
name: Tumurtushaa, Gansukh
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the space-condensate inflation model to study the primordial gravitational waves generated in the early Universe. We calculate the energy spectrum of gravitational waves induced by the space-condensate inflation model for full frequency range with assumption that the phase transition between two consecutive regimes to be abrupt during evolution of the Universe. The suppression of energy spectrum is found in our model for the decreasing frequency of gravitational waves depending on the model parameter. To realize the suppression of energy spectrum of the primordial gravitational waves, we study an existence of the early phase transition during inflation for the space-condensate inflation model.
description: 12 pages, 3 figures
Supplementary document for Enhanced forward emission by backside mirror design in micron-sized LEDs - 7158314.pdf
Creators: name: Vögl, Florian
name: Avramescu, Adrian
name: Lex, Andreas
name: Waag, Andreas
name: Hetzl, Martin
name: von Malm, Norwin
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplement 1
Eber, J., Tertullian - "Gott ist gut und groß"
Creators: name: Padberg, Lutz Von
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1822376734
description: Jahrbuch für evangelikale Theologie, V. 15 (2001): Jahrbuch für evangelikale Theologie, Band 15
Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides XP$_2$ (X = Mo, W)
Creators: name: Autès, G.
name: Gresch, D.
name: Troyer, M.
name: Soluyanov, A. A.
name: Yazyev, O. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The recently discovered type-II Weyl points appear at the boundary between electron and hole pockets. Type-II Weyl semimetals that host such points are predicted to exhibit a new type of chiral anomaly and possess thermodynamic properties very different from their type-I counterparts. In this Letter, we describe the prediction of a type-II Weyl semimetal phase in the transition metal diphosphides MoP$_2$ and WP$_2$. These materials are characterized by relatively simple band structures with four pairs of type-II Weyl points. Neighboring Weyl points have the same chirality, which makes the predicted topological phase robust with respect to small perturbations of the crystalline lattice. In addition, this peculiar arrangement of the Weyl points results in long topological Fermi arcs, thus making them readily accessible in angle-resolved photoemission spectroscopy.
title: Intracranial venous system Magnetic Resonance Venography: Diagnostic radiological methods possibilities, limitations and indications
Creators: name: Kakkar, Tarun
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Haemodynamics / Flow dynamics
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: Computer Applications-3D
subject: MR
subject: Image manipulation / Reconstruction
subject: Veins / Vena cava
subject: MR physics
subject: Anatomy

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1. The use of cerebral MR venography is increasing in frequency as a noninvasive means of evaluating the intracranial venous system. This technique is particularly useful in the diagnosis of venous sinus thrombosis, which at times can be...
Discovery of $γ$-ray emission from the radio-intermediate quasar III Zw 2: violent jet activity with intraday $γ$-ray variability
Creators: name: Liao, Neng-Hui
name: Xin, Yu-Liang
name: Fan, Xu-Liang
name: Weng, Shan-Shan
name: Li, Shao-Kun
name: Chen, Liang
name: Fan, Yi-Zhong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: III Zw 2 is the prototype of radio-intermediate quasars. Although there is the evidence of possessing strong jet, significant $γ$-ray emission has not been reported before. In this work, we carry out a detailed analysis of the latest {\it Fermi}-LAT {\it Pass} 8 data. No significant $γ$-ray signal has been detected in the time-averaged 7-year {\it Fermi}-LAT data of III Zw 2, we however have identified two distinct $γ$-ray flares with isotropic luminosities of $\sim 10^{45}$ erg $\rm s^{-1}$. Multiwavelength data analysis (including also the optical photometric observations from Yunnan Observatories) are presented and the main finding is the simultaneous optical and $γ$-ray flares of III Zw 2 appearing in Nov. 2009. Violent $γ$-ray variability with doubling timescale of 2.5 hours was detected in another $γ$-ray flare in May 2010, for which the 3-hour $γ$-ray peak flux is $\sim 250$ times of the average flux in 7 years. Rather similar behaviors are observed in blazars and the blazar model can reasonably reproduce the spectral energy distribution of III Zw 2 in a wide energy range, strongly suggesting that its central engine resembles that of blazars. In view of its core which shares radio similarities with young radio sources together with the weak extended radio lobe emission, we suggest that III Zw 2 harbors a recurrent activity core and serves as a valuable target for investigating the fuelling and triggering of the activity in radio loud AGNs.
description: ApJS in press, welcome any comments
From global to heavy-light: 5-point conformal blocks
Creators: name: Alkalaev, K. B.
name: Belavin, V. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider Virasoro conformal blocks in the large central charge limit. There are different regimes depending on the behavior of the conformal dimensions. The most simple regime is reduced to the global sl(2, C) conformal blocks while the most complicated one is known as the classical conformal blocks. Recently, Fitzpatrick, Kaplan, and Walters showed that the two regimes are related through the intermediate stage of the so-called heavy-light semiclassical limit. We study this idea in the particular case of the 5-point conformal block. To find the 5-point global block we use the projector technique and the Casimir operator approach. Furthermore, we discuss the relation between the global and the heavy-light limits and construct the heavy-light block from the global block. In this way we reproduce our previous results for the 5-point perturbative classical block obtained by means of the monodromy method.
description: 19 pages, v2: minor corrections, typos removed; v3: more comments, extended Introduction and Conclusion, refs added, journal version
Sitzmann, M. / Weber, C., Ubersichten zur Kirchengeschichte
Creators: name: Padberg, Lutz Von
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1822377315
description: Jahrbuch für evangelikale Theologie, V. 15 (2001): Jahrbuch für evangelikale Theologie, Band 15
The extended disc and halo of the Andromeda galaxy observed with Spitzer-IRAC
Creators: name: Ravandi, Masoud Rafiei
name: Barmby, Pauline
name: Ashby, Matthew L. N.
name: Laine, Seppo
name: Davidge, T. J.
name: Zhang, Jenna
name: Bianchi, Luciana
name: Babul, Arif
name: Chapman, S. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first results from an extended survey of the Andromeda galaxy (M31) using 41.1 h of observations by Spitzer-IRAC at 3.6 and 4.5$\,μ$m. This survey extends previous observations to the outer disc and halo, covering total lengths of 4$.\!\!^\circ$4 and 6$.\!\!^\circ$6 along the minor and major axes, respectively. We have produced surface brightness profiles by combining the integrated light from background-corrected maps with stellar counts from a new catalogue of point sources. Using auxiliary catalogues we have carried out a statistical analysis in colour-magnitude space to discriminate M31 objects from foreground Milky Way stars and background galaxies. The catalogue includes 426,529 sources, of which 66 per cent have been assigned probability values to identify M31 objects with magnitude depths of [3.6]$\,=\,$19.0$\,\pm\,$0.2, [4.5]$\,=\,$18.7$\,\pm\,$0.2. We discuss applications of our data for constraining the stellar mass and characterising point sources in the outer radii.
description: 12 pages, 9 figures, 5 tables; Updated to match published version; minor revisions from v1
title: Development of a phantom-based quantitative evaluation protocol of fat-suppression techniques for breast-MRI at 3.0T
Creators: name: Delakis, Ioannis
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Artifacts
subject: Technology assessment
subject: Physics
subject: MR
subject: Mammography
subject: MR physics
subject: Breast

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: MRI studies of the breast at 3.0T can offer higher signal to noise ratio and spatial resolution than when using lower magnetic field systems. However, fat suppression can be more challenging on 3.0T systems because of inhomogeneities of the B 0 and...
Supersaturation and activity-rotation relation in PMS stars: the young Cluster h Per
Creators: name: Argiroffi, C.
name: Caramazza, M.
name: Micela, G.
name: Sciortino, S.
name: Moraux, E.
name: Bouvier, J.
name: Flaccomio, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The magnetic activity of late-type MS stars is characterized by different regimes, and their activity levels are well described by Ro, the ratio between P_rot and the convective turnover time. Very young PMS stars show, similarly to MS stars, intense magnetic activity. However they do not show clear activity-rotation trends, and it still debated which stellar parameters determine their magnetic activity levels. To bridge the gap between MS and PMS stars, we studied the activity-rotation relation in the young cluster h Per, a ~13 Myr old cluster, that contains both fast and slow rotators, whose members have ended their accretion phase and have already developed a radiative core. It offers us the opportunity to study the activity level of intermediate-age PMS stars with different rotational velocities, excluding any interactions with the circumstellar environment. We constrained the magnetic activity levels of h Per members measuring their X-ray emission from a Chandra observation, while P_rot were obtained by Moraux et al. (2013). We collected a final catalog of 414 h Per members with known P_rot, T_eff, M_star, with 169 of them having also detected X-ray emission. We found that h Per members, with 1.0 M_sun < M_star < 1.4 M_sun, display different activity regimes: fast rotators show supersaturation, while slower rotators have activity levels compatible to the non-saturated regime. At 13 Myr h Per is therefore the youngest cluster showing activity-rotation regimes analogous to that of MS stars, indicating that, at this age, magnetic field production is likely regulated by the alpha-Omega type dynamo. Moreover we observed that supersaturation is better described by P_rot than Ro, and that the observed patterns are compatible with the hypothesis of centrifugal stripping. In this scenario we inferred that coronae can produce structures as large as ~2 R_star above the stellar surface.
description: 36 pages (the paper is 14 pages; two tables to be published online are 22 pages), 13 figures, accepted for publication in A&A
Classical Electromagnetic Fields from Quantum Sources in Heavy-Ion Collisions
Creators: name: Holliday, Robert
name: McCarty, Ryan
name: Peroutka, Balthazar
name: Tuchin, Kirill
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Electromagnetic fields are generated in high energy nuclear collisions by spectator valence protons. These fields are traditionally computed by integrating the Maxwell equations with point sources. One might expect that such an approach is valid at distances much larger than the proton size and thus such a classical approach should work well for almost the entire interaction region in the case of heavy nuclei. We argue that, in fact, the contrary is true: due to the quantum diffusion of the proton wave function, the classical approximation breaks down at distances of the order of the system size. We compute the electromagnetic field created by a charged particle described initially as a Gaussian wave packet of width 1 fm and evolving in vacuum according to the Klein-Gordon equation. We completely neglect the medium effects. We show that the dynamics, magnitude and even sign of the electromagnetic field created by classical and quantum sources are different.
description: 12 pages, 4 figures. V2: a numerical error corrected, figures improved, other minor improvements
Trained model weights for "Automated detection and quantification of brain metastases on clinical MRI data using artificial neural networks"
Creators: name: Pflüger, Irada
name: Wald, Tassilo
name: Isensee, Fabian
name: Vollmuth, Philipp
name: Maier-Hein, Klaus H.
Publisher: name: Zenodo
Year: 2022
Subjects: Artificial Intelligence
Brain Metastasis
CNN

description: Trained model weights for 'HD-BM' and 'HD-BM Slim' of the publication "Automated detection and quantification of brain metastases on clinical MRI data using artificial neural networks". To use these weights check out https://github.com/NeuroAI-HD/HD-BM!
750 GeV Diphoton Signal from One-Family Walking Technipion
Creators: name: Matsuzaki, Shinya
name: Yamawaki, Koichi
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The ATLAS and CMS groups have recently reported an excess at around 750 GeV with the local significance by about 3 sigma in the diphoton channel at the 13 TeV LHC. We give a possible explanation for the excess by a composite pseudo scalar $(P^0)$ predicted in the one-family model of walking technicolor.
description: 4 pages; version to appear in MPLA
title: The Oesophageal Swallow (Barium Oesophagram) Test: Classical Radiological Signs from an ‘out-dated’ study and its role in the modern era of cross-sectional imaging.
Creators: name: Adams, Ashok
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Abdomen
subject: Stomach (incl. Oesophagus)
subject: Gastrointestinal tract
subject: Fluoroscopy
subject: CT
subject: Diagnostic procedure
subject: Contrast agent-oral
subject: Education
subject: Neoplasia
subject: Pathology
subject: Motility

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To provide an approach to the interpretation of the barium oesophagram and aid detection of abnormal radiological findings on a study that is being performed less frequently. Provide a pictorial review of the spectrum of imaging findings on the...
A quick method to identify secular resonances in multi-planet systems with a binary companion
Creators: name: Pilat-Lohinger, Elke
name: Bazso, Akos
name: Funk, Barbara
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Gravitational perturbations in multi-planet systems caused by an accompanying star are the subject of this investigation. Our dynamical model is based on the binary star HD41004 AB where a giant planet orbits HD41004 A. We modify the orbital parameters of this system and analyze the motion of a hypothetical test-planet surrounding HD41004 A on an interior orbit to the detected giant planet. Our numerical computations indicate perturbations due to mean motion and secular resonances. The locations of these resonances are usually connected to high eccentricity and highly inclined motion depending strongly on the binary-planet architecture.As the positions of mean motion resonances can easily be determined, the main purpose of this study is to present a new semi-analytical method to determine the location of a secular resonance without huge computational effort.
description: 28 pages, 8 figures
title: Does the manual selection of axial CT-slices contribute to inter- and intrareader CT measurement error?
Creators: name: Dankerl, Peter
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Oncology
subject: Computer applications
subject: CT
subject: Staging
subject: Experimental investigations
subject: Diagnostic procedure

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: As well documented, two-dimensional CT-measurements are prone to error and inter- and intraobserver ct-measurements vary significantly [1, 2, 3, 4]. RECIST-criteria are applied to evaluate disease response in patients with malignant...
Sparse group factor analysis for biclustering of multiple data sources
Creators: name: Bunte, Kerstin
name: Leppäaho, Eemeli
name: Saarinen, Inka
name: Kaski, Samuel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Machine Learning (cs.LG)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Motivation: Modelling methods that find structure in data are necessary with the current large volumes of genomic data, and there have been various efforts to find subsets of genes exhibiting consistent patterns over subsets of treatments. These biclustering techniques have focused on one data source, often gene expression data. We present a Bayesian approach for joint biclustering of multiple data sources, extending a recent method Group Factor Analysis (GFA) to have a biclustering interpretation with additional sparsity assumptions. The resulting method enables data-driven detection of linear structure present in parts of the data sources. Results: Our simulation studies show that the proposed method reliably infers bi-clusters from heterogeneous data sources. We tested the method on data from the NCI-DREAM drug sensitivity prediction challenge, resulting in an excellent prediction accuracy. Moreover, the predictions are based on several biclusters which provide insight into the data sources, in this case on gene expression, DNA methylation, protein abundance, exome sequence, functional connectivity fingerprints and drug sensitivity.
description: 7 pages, 5 figures, 1 table in Bioinformatics 2016
Universal Dynamic Magnetism in Yb-Pyrochlores with Disparate Ground States
Creators: name: Hallas, A. M.
name: Gaudet, J.
name: Butch, N. P.
name: Tachibana, M.
name: Freitas, R. S.
name: Luke, G. M.
name: Wiebe, C. R.
name: Gaulin, B. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The ytterbium pyrochlore magnets, Yb2B2O7 (B = Sn, Ti, Ge) are well described by S_eff = 1/2 quantum spins decorating a network of corner-sharing tetrahedra and interacting via anisotropic exchange. Structurally, only the non-magnetic B-site cation, and hence, primarily the lattice parameter, is changing across the series. Nonetheless, a range of magnetic behaviors are observed: the low temperature magnetism in Yb2Ti2O7 and Yb2Sn2O7 has ferromagnetic character, while Yb2Ge2O7 displays an antiferromagnetically ordered Neel state at low temperatures. While the static properties of the ytterbium pyrochlores are distinct, inelastic neutron scattering measurements reveal a common character to their exotic spin dynamics. All three ytterbium pyrochlores show a gapless continuum of spin excitations, resembling over-damped ferromagnetic spin waves at low Q. Furthermore, the specific heat of the series also follows a common form, with a broad, high-temperature anomaly followed by a sharp low-temperature anomaly at T_C or T_N. The novel spin dynamics we report correlate strongly with the broad specific heat anomaly only, remaining unchanged across the sharp anomaly. This result suggests that the primary order parameter in the ytterbium pyrochlores associated with the sharp anomaly is "hidden" and not simple magnetic dipole order.
description: 6 pages. 5 figures, to appear in Phys. Rev. B (Rapid Communication)
On Quantum Entanglement in Topological Phases on a Torus
Creators: name: Luo, Zhu-Xi
name: Hu, Yu-Ting
name: Wu, Yong-Shi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper we study the effect of non-trivial spatial topology on quantum entanglement by examining the degenerate ground states of a topologically ordered system on torus. Using the string-net (fixed-point) wave-function, we propose a general formula of the reduced density matrix when the system is partitioned into two cylinders. The cylindrical topology of the subsystems makes a significant difference in regard to entanglement: a global quantum number for the many-body states comes into play, together with a decomposition matrix $M$ which describes how topological charges of the ground states decompose into boundary degrees of freedom. We obtain a general formula for entanglement entropy and generalize the concept of minimally entangled states to minimally entangled sectors. Concrete examples are demonstrated with data from both finite groups and modular tensor categories (i.e., Fibonacci, Ising, etc.), supported by numerical verification.
description: v2. more references added; v3: submitted version
Das Buch der psalmen, übers. u. erkl. v. H. Herkenne
Creators: name: Bruders, H.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 11 Nr. 4 (1936): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 11, Heft 4
title: Sonographic detection of microcalcifications: potential of new method
Creators: name: Grigoryev, Maria
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Ultrasound
subject: Vacuum assisted biopsy
subject: Equipment
subject: Observer performance
subject: Calcifications / Calculi
subject: Neoplasia
subject: Pathology

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1. Microcalcifications are a very important finding in asymptomatic patients with early breast cancer. Despite recent technical advances, sonographic detection of microcalcifications remains problematic, especially when they are located inside...
Coupled Spin-Light dynamics in Cavity Optomagnonics
Creators: name: Kusminskiy, Silvia Viola
name: Tang, Hong X.
name: Marquardt, Florian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Experiments during the past two years have shown strong resonant photon-magnon coupling in microwave cavities, while coupling in the optical regime was demonstrated very recently for the first time. Unlike with microwaves, the coupling in optical cavities is parametric, akin to optomechanical systems. This line of research promises to evolve into a new field of optomagnonics, aimed at the coherent manipulation of elementary magnetic excitations by optical means. In this work we derive the microscopic optomagnonic Hamiltonian. In the linear regime the system reduces to the well-known optomechanical case, with remarkably large coupling. Going beyond that, we study the optically induced nonlinear classical dynamics of a macrospin. In the fast cavity regime we obtain an effective equation of motion for the spin and show that the light field induces a dissipative term reminiscent of Gilbert damping. The induced dissipation coefficient however can change sign on the Bloch sphere, giving rise to self-sustained oscillations. When the full dynamics of the system is considered, the system can enter a chaotic regime by successive period doubling of the oscillations.
description: Extended version, as published
title: Measurement of the top quark pair production cross-section in the μeb final state at √s=13 TeV with the LHCb detector.
Creators: name: Wark, Heather
Publisher: name: University of Liverpool Repository
Year: 2020

description: The LHC is the highest energy particle collider in the world. The LHCb experiment is one of the four main experiments at the LHC. Between 2015 and 2018 it collected 5.4 fb¯1 of data at a centre of mass energy of 13 TeV. In this thesis, the cross-section for tt‾ μeb production is measured using this data set. The study of this measurement is a test of the predicting power of Standard Model theory and also contributes to constraining future predictions of proton interactions. A selection scheme is developed to reduce the expected contributions from a number of backgrounds and improve the purity of the final state. The finnal measurement, σtt¯, represents the cross-section of the production of top quark pairs decaying to a muon, electron and b-jet, where the ρτ of each object is above 20 GeV, the lepton pseudorapidities are between 2 and 4.5, and the b-jet pseudorapidity is between 2.2 and 4.2. The result is: σtt¯ = 117±10(stat.) ±15(syst.)±5(lumi.)pb where the first uncertainty is statistical, the second is systematic and the third is due to the luminosity determination. Comparisons are made with theoretical predictions calculated from POWHEG and aMC@NLO and the measurement is seen to be in good agreement. A feasibility study of the measurement of the WW production cross-section is also performed. While the measurement will be possible at LHCb in the near future, it is not feasible with the current data set, due mainly to the limited statistics available. It is predicted that a significant measurement of this cross-section will be possible by the end of LHCb Run-III.
INTERNATIONAL JOURNAL OF EDUCATION AND RESEARCH
Creators: name: Instituto Internacional De Educação E Pesquisa
Publisher: name: Zenodo
Year: 2021

description: The journal IJEResearch - International Journal of Education and Research, in its second edition, reflects the effort of the Instituto iiEP team to organize a journal that manages to have a greater reach. The publication in English, the language most used for the dissemination of scientific studies, makes us believe that we will be able to draw attention to our journal, exalting the quality of our research. Obeying the ethics of scientific communication, exploring the linguistic resources that language allows. Originality is another important point in scientific dissemination, as innovation fits into any discussion. Therefore, IJEResearch is committed to always presenting the new and the current. I thank the authors who sent us the articles to be published.
Multi-epoch Spectroscopy of Dwarf Galaxies with AGN Signatures: Identifying Sources with Persistent Broad H-alpha Emission
Creators: name: Baldassare, Vivienne F.
name: Reines, Amy E.
name: Gallo, Elena
name: Greene, Jenny E.
name: Graur, Or
name: Geha, Marla
name: Hainline, Kevin
name: Carroll, Christopher M.
name: Hickox, Ryan C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We use time-domain optical spectroscopy to distinguish between broad emission lines powered by accreting black holes (BHs) or stellar processes (i.e., supernovae) for 16 galaxies identified as AGN candidates by Reines \etal (2013). Our study is primarily focused on those objects with narrow emission-line ratios dominated by star formation. Based on follow-up spectra taken with the Magellan Echellette Spectrograph (MagE), the Dual Imaging Spectrograph, and the Ohio State Multi-Object Spectrograph, we find that the broad H$α$ emission has faded or was ambiguous for all of the star-forming objects (14/16) over baselines ranging from 5 to 14 years. For the two objects in our follow-up sample with narrow-line AGN signatures (RGG 9 and RGG 119), we find persistent broad H$α$ emission consistent with an AGN origin. Additionally, we use our MagE observations to measure stellar velocity dispersions for 15 objects in the Reines et al. (2013) sample, all with narrow-line ratios indicating the presence of an AGN. Stellar masses range from $\sim5\times10^{8}$ to $3\times10^{9}$~\msun, and we measure $σ_{\ast}$ ranging from $28-71~{\rm km~s^{-1}}$. These $σ_{\ast}$ correspond to some of the lowest-mass galaxies with optical signatures of AGN activity. We show that RGG 119, the one object which has both a measured $σ_{\ast}$ and persistent broad H$α$ emission, falls near the extrapolation of the $\rm M_{BH}-σ_{\star}$ relation to the low-mass end.
description: Accepted for publication in the Astrophysical Journal. 13 pages, 12 figures
Delorme, Ferd.: Bonaventurae Collationes in Hexaëmeron et Bonaventuriana quaedam selecta
Creators: name: Pelster, Franz
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 11 Nr. 4 (1936): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 11, Heft 4
New soft theorems for the gravity dilaton and the Nambu-Goldstone dilaton at subsubleading order
Creators: name: Di Vecchia, Paolo
name: Marotta, Raffaele
name: Mojaza, Matin
name: Nohle, Josh
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the soft behavior of two seemingly different particles that are both referred to as dilatons in the literature, namely the one that appears in theories of gravity and in string theory and the Nambu-Goldstone boson of spontaneously broken conformal invariance. Our primary result is the discovery of a soft theorem at subsubleading order for each dilaton, which in both cases contains the operator of special conformal transformations. Interesting similarities as well as differences between the dilaton soft theorems are discussed.
description: 7 pages, new version to match the published one: title, abstract and introduction expanded
Supplementary document for Nonreciprocal polarized transmission via bound states in the continuum - 7164945.pdf
Creators: name: Cai, Shijie
name: Wu, Zeyu
name: Liu, Xiaoshan
name: Wang, Yan
name: Cheng, Yang
name: Liu, Guiqiang
name: Chen, Jing
name: Tang, Chaojun
name: Liu, Zhengqi
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplement 1
title: ‘Good farming’ beyond farmland: exploring farmers’ knowledge(s) and practices in relation to rivers and riparian environments
Creators: name: Thomas, Emma
Publisher: name: University of Liverpool Repository
Year: 2020

description: This thesis takes a social science perspective to consider farmers’ engagements with riparian environments. It has been widely recognised in recent literature that farmers have a crucial role to play in providing more environmentally-sensitive forms of agri-environmental management. Whilst social scientists have begun to make significant contributions to these discussions, they have focused largely on terrestrial environments, with little detailed discussion of rivers and riparian environments. The thesis considers a catchment in the North West of England (UK) and uses in-depth qualitative, on-farm, interviews with 64 farmers, to make a number of contributions to our broader understandings. First, it offers a methodological contribution – reflecting on the merits and challenges of doing ‘on-farm’, emplaced, interviews. Specifically, the thesis contributes to the discussion of interviewer positionality – introducing the idea of ‘geographical ignorance’ as a way of positioning, simultaneously, as both ‘insider’ and ‘outsider’ - and also to the discussion of research emplacement by considering the challenges and benefits of interviewing on the farm. Second, the thesis observes how riparian environments' (im)materiality, unpredictability and untidiness limit their ability to generate and exhibit capital(s) and how an infrequency of direct engagement with rivers – arguably reinforced through recent regulatory changes on what farmers can and cannot do to riparian environments – mean that farmers have often not developed skills and capitals associated with rivers in the same way that they have for land. These observations are used to consider farmers' engagement with more recently introduced river health-enhancing managements and to consider whether, when taken together, we might be witnessing a shift in how riparian environments contribute to good farming and good farmer status. The thesis has also found that sustainable managements have the capacity to dovetail with pre-exiting symbols of good farming, creating win-win scenario/s that benefit river health and accord with a good farmer identity. Thirdly, through a consideration of the Catchment Sensitive Farming (CSF) initiative, the thesis considers how farmers engage with, utilise and share knowledge, noting a general receptiveness to the knowledge offered by CSF advisors, but highlighting the importance of specific contexts and personal relationships within this process and how farmers may hold different knowledge practices in relation to different parts of their farm. The thesis further illustrates that specific places and spatial contexts are important to how knowledge is taken on and reworked, and changing regulations and environmental conditions, the paper suggests, may be reshaping what knowledges farmers draw on and trust.
title: CT arthrography of wrist ligament tears using a novel mobile dedicated extremity cone-beam CT (CBCT) scanner
Creators: name: Koskinen, Seppo K.
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Trauma
subject: Arthrography
subject: MR
subject: CT
subject: Musculoskeletal joint
subject: Extremities

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To evaluate the sensitivity, specificity, accuracy and positiveand negative predictive value of MDCT arthrography in the diagnosis of tears of scapholunate (SLL) and lunotriquetral (LTL) ligament and triangular fibrocartilaginous complex (TFCC)...
Zur Frage nach dem Verfasser der Confutatio primatus Papae
Creators: name: Meier, Ludger
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 11 Nr. 4 (1936): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 11, Heft 4
GRB 141221A: gone is the wind
Creators: name: Bardho, O.
name: Gendre, B.
name: Rossi, A.
name: Amati, L.
name: Haislip, J.
name: Klotz, A.
name: Palazzi, E.
name: Reichart, D.
name: Trotter, A. S.
name: Boer, M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: GRB 141221A was observed from infrared to soft gamma-ray bands. Here, we investigate its properties, in light of the standard model. We find that the optical light curve of the afterglow of this burst presents an unusual steep/quick rise. The broad band spectral energy distribution taken near the maximum of the optical emission presents either a thermal component or a spectral break. In the former case, the properties of the afterglow are then very unusual, but could explain the lack of apparent jet breaks in the Swift light curves. In the latter case, the afterglow properties of this burst are more usual, and we can see in the light curves the passing through of the injection and cooling frequencies within the optical bands, not masked by a reverse shock. This model also excludes the presence of a stellar wind, challenging either the stellar progenitor properties, or the very stellar nature of the progenitor itself. In all cases, this burst may be a part of a Rosetta stone that could help to explain some of the most striking features discovered by Swift during the last ten years.
description: 9 pages, 5 figures, 7 tables, accepted for publication in MNRAS
title: RAPID DIAGNOSTIC PROGRAM FOR BREAST CANCER: OUR EXPERIENCE
Creators: name: Ruiz Macarrilla, Sonia
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Mammography
subject: Decision analysis
subject: Health policy and practice
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1.PURPOSE Analyze the organizational model and collaborative care with doctors in our reference area and the entire multidisciplinary team of our hospital, to do the diagnosis and treatment of patients with suspected breast cancer, is within the...
Meson's Correlation Functions in a Nuclear Medium
Creators: name: Park, Chanyong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate meson's spectrum, decay constant and form factor in a nuclear medium through holographic two- and three-point correlation functions. To describe a nuclear medium composed of protons and neutrons, we consider a hard wall model on the thermal charged AdS geometry and show that due to the isospin interaction with a nuclear medium, there exist splittings of the meson's spectrum, decay constant and form factor relying on the isospin charge. In addition, we show that the $ρ$-meson's form factor describing an interaction with pseudoscalar fluctuation decreases when the nuclear density increases, while the interaction with a longitudinal part of an axial vector meson increases.
description: 16 pages, 3 figures
title: Cystic pancreatic lesions
Creators: name: Alvarez de Eulate, Laura
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Pancreas
subject: CT
subject: MR
subject: Education
subject: Cysts

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To describe the different types of cystic pancreatic lesions and their radiological...
title: The utility of tablet computer technology for the on-call CT interpretation
Creators: name: Abu Gazala, Maya
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Acute
subject: Computer Applications-General
subject: PACS
subject: CT
subject: Computer applications

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Initial evaluation of an image interpretation application optimized for the tablet computer technology. The aim of the study was to determine the diagnostic accuracy of interpreting CT examinations with the use of tablet...
On the box-counting dimension of potential singular set for suitable weak solutions to the 3D Navier-Stokes equations
Creators: name: Wang, Yanqing
name: Wu, Gang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper, we are concerned with the upper box-counting dimension of the set of possible singular points in space-time of suitable weak solutions to the 3D Navier-Stokes equations. By taking full advantage of the pressure $Π$ in terms of $\nabla Π$ in equations, we show that this upper box dimension is at most $135/104(\approx1.30)$, which improves the known upper box-counting dimension $95/63(\approx1.51)$ in Koh et al. [9, J. Differential Equations, 261: 3137--3148, 2016], $45/29(\approx1.55)$ in Kukavica et al. [11, Nonlinearity 25: 2775-2783, 2012] and $135/82(\approx1.65)$ in Kukavica [10, Nonlinearity 22: 2889-2900, 2009].
description: Thanks to referees' crucial comments, we improved the box dimension of potential singular set for suitable weak solutions from 180/131 to 135/104 in this version
title: Infections of the musculoskeletal system: Radiologic Findings
Creators: name: Alvarez de Eulate, Laura
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Musculoskeletal system
subject: CT
subject: MR
subject: Education
subject: Infection

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To describe the radiological findings of the different types of infections of the musculoskeletal...
title: Characteristics of breast cancer detected in an organised Population Screening Program in comparison to other detection methods in 2006
Creators: name: Merino Bonilla, Jose Alberto
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Mammography
subject: Screening
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The purpose of this study is to evaluate the impact of the application of breast cancer screening programmes in the early detection of tumours. To this end, the following specific objectives have been established: 1. To describe the characteristics...
Role of Strain on the Coherent Properties of GaAs Excitons and Biexcitons
Creators: name: Wilmer, Brian L.
name: Webber, Daniel
name: Ashley, Joseph M.
name: Hall, Kimberley C.
name: Bristow, Alan D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Polarization-dependent two-dimensional Fourier-transform spectroscopy (2DFTS) is performed on excitons in strained bulk GaAs layers probing the coherent response for differing amounts of strain. Biaxial tensile strain lifts the degeneracy of heavy-hole (HH) and light-hole (LH) valence states, leading to an observed splitting of the associated excitons at low temperature. Increasing the strain increases the magnitude of the HH/LH exciton peak splitting, induces an asymmetry in the off-diagonal coherences, increases the difference in the HH and LH exciton homogenous linewidths, and increases the inhomogeneous broadening of both exciton species. All results arise from strain-induced variations in the local electronic environment, which is not uniform along the growth direction of the thin layers. For cross-linear polarized excitation, wherein excitonic signals give way to biexcitonic signals, the high-strain sample shows evidence of bound LH, HH, and mixed biexcitons.
description: 10 pages, 4 figures, 2 tables, journal article
title: Workflow improvements in cardiac CT post-processing with iterative reconstruction compared to filtered back projection
Creators: name: Sudarski, Sonja
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiac
subject: Computer applications
subject: Radiation physics
subject: CT
subject: CT-Angiography
subject: CT-Quantitative

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: With the increasing use of coronary CT angiography (cCTA) for the diagnosis of coronary artery disease (CAD) in clinical practice, potential risks due to ionizing radiation exposure have raised concerns. Low-dose image acquisition protocols have...
title: Understanding and Modifying the Properties of Permanently Microporous Liquids: Towards Selective and Scalable Systems
Creators: name: Egleston, Benjamin
Publisher: name: University of Liverpool Repository
Year: 2021

description: Porous liquids are a new class of material defined by their permanent microporosity and fluidity. In this thesis, an investigation of control over the properties of these materials is described, transferring knowledge of microporous solids into the liquid state. The progress made to date in this relatively young field is outlined, as well as an overview of the properties of microporous solids. New type 2 and 3 porous liquids with modified gas uptake and selectivity were generated using synthetic pore control in porous organic cages, based on previous understanding of these organic cage molecules. In a type 2 porous liquid cage solution, introduction of methyl groups to occlude the pore window effect was used to invert selectivity for Xe. New type 3 porous liquid dispersions were prepared from organic cage microcrystals, pore modification among the materials was also shown to enhance or reduce gas uptake. Hydrophobicity is also explored as a driving force for introducing porosity in a liquid, microporous polymer dispersions were investigated for gas and liquid absorption.
Semi-Stable Chow-Hall Algebras of Quivers and Quantized Donaldson-Thomas Invariants
Creators: name: Franzen, H.
name: Reineke, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The semi-stable ChowHa of a quiver with stability is defined as an analog of the Cohomological Hall algebra of Kontsevich and Soibelman via convolution in equivariant Chow groups of semi-stable loci in representation varieties of quivers. We prove several structural results on the semi-stable ChowHa, namely isomorphism of the cycle map, a tensor product decomposition, and a tautological presentation. For symmetric quivers, this leads to an identification of their quantized Donaldson-Thomas invariants with the Chow-Betti numbers of moduli spaces.
description: 23 pages; v2: Fixed an error in the proof of Thm. 5.1, generalized Thm. 6.1 to arbitrary quivers (not just symmetric ones)