cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ising Spin Network States for Loop Quantum Gravity: a Toy Model for Phase Transitions
Creators: name: Feller, Alexandre
name: Livine, Etera R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Non-perturbative approaches to quantum gravity call for a deep understanding of the emergence of geometry and locality from the quantum state of the gravitational field. Without background geometry, the notion of distance should entirely emerge from the correlations between the gravity fluctuations. In the context of loop quantum gravity, quantum states of geometry are defined as spin networks. These are graphs decorated with spin and intertwiners, which represent quantized excitations of areas and volumes of the space geometry. Here, we develop the condensed matter point of view on extracting the physical and geometrical information out of spin network states: we introduce new Ising spin network states, both in 2d on a square lattice and in 3d on a hexagonal lattice, whose correlations map onto the usual Ising model in statistical physics. We construct these states from the basic holonomy operators of loop gravity and derive a set of local Hamiltonian constraints which entirely characterize our states. We discuss their phase diagram and show how the distance can be reconstructed from the correlations in the various phases. Finally, we propose generalizations of these Ising states, which open the perspective to study the coarse graining and dynamics of spin network states using well-known condensed matter techniques and results.
description: 17 pages
title: Patient satisfaction assessment in mammography exams
Creators: name: Borralho, Leila
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Professional issues
subject: Management
subject: Mammography
subject: Health policy and practice
subject: Audit and standards
subject: Socio-economic issues

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The number of mammograms performed has increased exponentially in recent years, and, increasingly, there is need to assess the satisfaction of clients. The objective of this study is to assess the level of satisfaction of users in the exam...
High-precision muon decay predictions for ALP searches
Creators: name: Banerjee, P.
name: Coutinho, A. M.
name: Engel, T.
name: Gurgone, A.
name: Signer, A.
name: Ulrich, Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present an improved theoretical prediction of the positron energy spectrum for the polarised Michel decay $μ^+\to e^+ ν_e\barν_μ$. In addition to the full next-to-next-to-leading order correction of order $α^2$ in the electromagnetic coupling, we include logarithmically enhanced terms at even higher orders. Logarithms due to collinear emission are included at next-to-leading accuracy up to order $α^4$. At the endpoint of the Michel spectrum, soft photon emission results in large logarithms that are resummed up to next-to-next-to-leading logarithmic accuracy. We apply our results in the context of the MEG II and Mu3e experiments to estimate the impact of the theory error on the branching ratio sensitivity for the lepton-flavour-violating decay $μ^+\to e^+ X$ of a muon into an axion-like particle $X$.
description: 37 pages, 14 figures, published version
Does Personality "Trump" Ideology? Narcissism Predicts Support for Trump via Ideological Tendencies
Creators: name: Hart, Joshua
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Personality and Social Contexts
subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Data and materials for "Does Personality "Trump" Ideology? Narcissism Predicts Support for Trump via Ideological Tendencies"
title: Synchrotron radiation micro-CT imaging of the mouse brain
Creators: name: CHABROL, AURELIE
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Animal (veterinary) studies
subject: Neuroradiology brain
subject: Molecular imaging
subject: MR
subject: CT-High Resolution
subject: Experimental
subject: Molecular imaging
subject: Contrast agent-intravenous
subject: Ischaemia / Infarction
subject: Inflammation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: MRI coupled with the injection of Ultrasmall particles of iron oxide (USPIO) has been successfully applied for pre-clinical and clinical studies of cerebral inflammation following stroke. Current limitations of this approach are represented by the...
Axion-meson mixing in light of recent lattice $η$-$η'$ simulations and their two-photon couplings within $U(3)$ chiral theory
Creators: name: Gao, Rui
name: Guo, Zhi-Hui
name: Oller, J. A.
name: Zhou, Hai-Qing
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the mixing of the QCD/QCD-like axion and light-flavor mesons $π^0, η, η'$ within the framework of $U(3)$ chiral perturbation theory up to next-to-leading order in this work. The axion-meson mixing formulas are calculated order by order in the $U(3)$ $δ$-expansion scheme, namely the joint expansions of the momentum, light-quark masses and $1/N_C$. We provide axion-meson mixing relations in terms of the $π^0$-$η$-$η'$ mixing parameters and their masses. The recent lattice simulations on the $η$-$η'$ systems turn out to be able to offer valuable inputs to constrain the unknown low-energy constants. The relation of the mass and decay constant of the axion is then further explored based on our updated calculations. The two-photon couplings of the light-flavor mesons, together with the axion, are also investigated in the $U(3)$ chiral theory up to next-to-leading order in the $δ$-counting scheme.
description: 24 pages, 3 figures. To match the published version
A Policy in Search of a Spokeswoman? Lessons from the Failure of Universal Child Care in Canada
Creators: name: Mohamed, Rahim
Publisher: name: University of North Carolina at Chapel Hill
Year: 2013

description: This paper addresses a number of issues in comparative social policy through a detailed analysis of the Canada's brief flirtation with a national early childhood education program [2005-2007]. Despite garnering broad public approval and passing through all relevant political veto points, the program was ultimately terminated by the administration of conservative prime minister Stephen Harper at no perceptible political cost. Employing a methodology of analytic induction, I find that the ultimate failure of the program was in its promotion. Notably, the program lacked a credible female champion, allowing its opponents to characterize it as intrusive and paternalistic. I concurrently develop a theory of early childhood education reform as a policy in search of a spokeswoman. Accordingly, I present Germany, a country where universalistic ECEC reform succeeded on the strength of spokeswomen Renate Schmidt and Ursula von der Leyen, as a telling foil to the Canadian case.
title: Inter-session reproducibility of cerebral blood flow (CBF) in the primary motor cortex as assessed in the VESPA (vendor-specific features of ASL-MRI) study
Creators: name: Steketee, Rebecca
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology brain
subject: MR-Diffusion/Perfusion
subject: Experimental investigations

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Arterial spin labeling (ASL) is an emerging magnetic resonance imaging (MRI) technique to quantify cerebral blood flow (CBF). It can be used for the evaluation of perfusion in different neurological disorders, but also for functional imaging, in...
Dynamical Degeneracy Splitting and Directional Invisibility in Non-Hermitian Systems
Creators: name: Zhang, Kai
name: Fang, Chen
name: Yang, Zhesen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, we introduce the concept of dynamical degeneracy splitting to describe the anisotropic decay behaviors in non-Hermitian systems. We demonstrate that systems with dynamical degeneracy splitting exhibit two distinctive features: (i) the system shows frequency-resolved non-Hermitian skin effect; (ii) Green's function exhibits anomalous at given frequency, leading to uneven broadening in spectral function and anomalous scattering. As an application, we propose directional invisibility based on wave packet dynamics to investigate the geometry-dependent skin effect in higher dimensions. Our work elucidates a faithful correspondence between non-Hermitian skin effect and Green's function, offering a guiding principle for exploration of novel physical phenomena emerging from this effect.
description: 24 pages, 11 figures
title: Acute low back/leg pain due to lumbar disc herniation: intradiscal and intraforaminal injections of oxygen-ozone vs steroid and anaesthetics
Creators: name: Alexandre, Andrea
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology spine
subject: Interventional non-vascular
subject: Percutaneous
subject: MR
subject: Comparative studies
subject: Efficacy studies
subject: Experimental investigations
subject: Hernia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Lumbar disc degeneration occurs because of a variety of factors and results in a multitude of conditions and of clinical alterations. Structural modifications in the vertebral endplate cause derangement of nucleus nutrition and disc...
On the relation between a graph code and a graph state
Creators: name: Hwang, Yongsoo
name: Heo, Jun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A graph state and a graph code respectively are defined based on a mathematical simple graph. In this work, we examine a relation between a graph state and a graph code both obtained from the same graph, and show that a graph state is a superposition of logical qubits of the related graph code. By using the relation, we first discuss that a local complementation which has been used for a graph state can be useful for searching locally equivalent stabilizer codes, and second provide a method to find a stabilizer group of a graph code.
description: accepted for publication in QIC
title: Role of 3D MRI with ProSet technique in the evaluation of lumbar radiculopathy
Creators: name: Grasso, Daniela
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology spine
subject: MR
subject: Imaging sequences
subject: Hernia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Sciatica caused by lumbar disc herniation is considered one of the most common diseases and the most frequent cause of absence from work all over the world. A correct diagnosis is often difficult to make and depends mostly on clinical...
Hexagonal Rare-Earth Manganites as Promising Photovoltaics and Light Polarizers
Creators: name: Huang, Xin
name: Paudel, Tula R.
name: Dong, Shuai
name: Tsymbal, Evgeny Y.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Ferroelectric materials possess a spontaneous electric polarization and may be utilized in various technological applications ranging from non-volatile memories to solar cells and light polarizers. Recently, hexagonal rare-earth manganites, h-RMnO$_3$ (R is a rare-earth ion) have attracted considerable interest due to their intricate multiferroic properties and improper ferroelectricity characterized by a sizable remnant polarization and high Curie temperature. Here, we demonstrate that these compounds can serve as very efficient photovoltaic materials and, in addition, possess remarkable optical anisotropy properties. Using first-principles methods based on density-functional theory and considering h-TbMnO$_3$ as a representative manganite, we predict a strong light absorption of this material in the solar spectrum range, resulting in the maximum light-to-electricity energy conversion efficiency up to 33%. We also predict an extraordinary optical linear dichroism and linear birefringence properties of h-TbMnO$_3$ in a broad range of optical frequencies. These results uncover the unexplored potential of hexagonal rare-earth manganites to serve as photovoltaics in solar cells and as absorptive and birefringent light polarizers.
description: 26 pages, 8 figures
Topological field-effect transistor with quantized ON/OFF conductance of helical/chiral dislocation states
Creators: name: Li, Xiaoyin
name: Liu, Feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topology is a key ingredient driving the emergence of quantum devices. Topological field-effect transistor (TFET) has been proposed to outperform the conventional FET by replacing the ON state with topology-protected quantized conductance, while the OFF state remains the same normal insulating characteristics and hence bears similar drawbacks. Here, we demonstrate a proof-of-concept TFET having both ON and OFF quantized conductance, by switching between helical and chiral topological screw dislocation (SD) states in three-dimensional topological insulators. A pair of SDs are configured with one acting as channel and the other as gate controlled by local magnetic field. A reversible field-switching is achieved with the ON and OFF conductance of $2e^2/h$ and $e^2/h$, respectively, as shown by tight-binding quantum transport calculations. Furthermore, BaBiO$_3$ is shown as a candidate material having the desired topological SD states, based on first-principles calculations. Our findings open a new route to high-fidelity topological quantum devices.
Assessing civic and political participation
Creators: name: Pavlova, Maria
name: Holtmann, Everhard
name: Jaeck, Tobias
name: Koerner, Astrid
name: Silbereisen, Rainer
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Political Science
subject: FOS: Political science
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Sociology
subject: FOS: Sociology
subject: activism
subject: assessment
subject: civic engagement
subject: civic participation
subject: measurement
subject: political engagement
subject: political participation
subject: quality of experience
subject: social engagement
subject: theory of planned behavior
subject: voluntary participation
subject: voluntary work
subject: volunteering

description: Items to assess civic and political participation from the survey “Local environment, individual developmental assets, and local potential for civic participation” (PIs: Everhard Holtmann, Rainer K. Silbereisen).
title: Radiographers perceptions of magnetic resonance imaging: a study of the causes that lead to the repetition of exams
Creators: name: Filipe, Tiago
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Professional issues
subject: MR
subject: Health policy and practice
subject: Education
subject: Safety

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To know how often occur the repetitions of MRI exams and sequences in radiology departments. Analyze the most common causes that lead to the repetition of MRI. To determine which MRI exam has a higher frequency of...
Public health relevant consequences of the COVID-19 pandemic on malaria in sub-Saharan Africa: A scoping review protocol
Creators: name: Heuschen, Anna-Katharina
name: Lu, Guangyu
name: Müller, Olaf
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Public Health
subject: Medicine and Health Sciences
subject: International Public Health
subject: Community Health and Preventive Medicine
subject: Africa
subject: coronavirus
subject: COVID-19
subject: global health
subject: malaria
subject: pandemic
subject: public health
subject: sub-Saharan Africa

description: This protocol describes the foundation of our scoping review that addresses the effects of the COVID-19 pandemic on the malaria situation in sub-Saharan Africa (SSA) with focus on the public health relevant aspects.
BIODEGRADATION OF ESSENTIAL OIL BY ENTEROBACTER SP. INDUCES PLANT GROWTH AND INHIBITS DAMPING-OFF PATHOGENS
Creators: name: SILME, RAGIP SONER
name: Baysal, Ömür
Publisher: name: Zenodo
Year: 2016
Subjects: Assimilation
biodegradation
plant growth regulators
plant pathogens

description: The soil microflora shelters community of dynamic microorganisms affecting biological activities of plant pathogens. Essential oil of Thymbra spicata oil is known to have antibacterial property. However, Enterobacter sp., which is able to decompose essential oil of Thymbra spicata and its main component carvacrol, was identified using 16S rDNA analysis. To elucidate this inhibitory effect, antifungal properties of secreted metabolites were investigated using bioautography of culture filtrates production of indole acetic acid (IAA) and chitinase. Chitinase expression was confirmed using SDS-PAGE staining by protein extraction from culture mediums. Therefore, we detected that biodegraded metabolites have also plant promoting effect on plants and inhibitory effect to Fusarium oxysporum and Rhizoctonia solani. These findings suggested that Enterobacter sp. is an IAA and chitinase producer that induces plant growth and biological agent to soil-borne pathogens.
title: Optimisation of acquisition parameters for diffusion-tensor magnetic resonance imaging in breast at 1.5 T
Creators: name: Wang, Yuan
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Breast
subject: MR
subject: MR-Functional imaging
subject: MR-Diffusion/Perfusion
subject: Imaging sequences
subject: Technical aspects

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To optimize the parameters of diffusion tensor imaging for breast tissue at...
title: Endovascular treatment of aneurysms and pseudo-aneurysms of the renal arteries.
Creators: name: Echevarria Uraga, Jose
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Aneurysms
subject: Embolisation
subject: Arterial access
subject: CT-Angiography
subject: Catheter arteriography
subject: Vascular
subject: Kidney
subject: Interventional vascular

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Aneurysms and pseudo-aneurysms of the renal arteries are a rare condition. The incidence of the aneurysms is 0,1-1% in the general population increasing to 2,5% in the hypertensive population. Clinically they are usually asymptomatic and are found...
title: Spatiotemporal morphometry (STM) in longitudinal HR-pQCT imaging - preliminary data from patients with rapid bone loss
Creators: name: Fischer, Lukas
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Computer applications
subject: Musculoskeletal bone
subject: CT-High Resolution
subject: CT-Quantitative
subject: Computer Applications-General
subject: Technical aspects
subject: Experimental investigations
subject: Osteoporosis
subject: Transplantation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: High resolution peripheral quantitative computed tomography (HR-pQCT) can be used for the non-invasive assessment of changes in bone microarchitecture. While the majority of studies have been cross-sectional in design, longitudinal data are still...
title: Penis sonography. A pictorial review
Creators: name: Azpeitia Armán, Francisco Javier
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Education and training
subject: Diagnostic procedure
subject: Ultrasound
subject: Genital / Reproductive system male

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To describe anatomy and US anatomy of the penis. To review the study protocol of US of the penis, in order to learn how to perform the exam. To illustrate the spectrum of lesions involving the penis, reviewing the typical and atypical sonographic...
Inverted Sedimentation of Active Particles in Unbiased ac Fields
Creators: name: Marcos, José Carlos Ureña
name: Liebchen, Benno
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Gaining control over the motion of active particles is crucial for applications ranging from targeted cargo delivery to nanomedicine. While much progress has been made recently to control active motion based on external forces, flows or gradients in concentration or light intensity, which all have a well-defined direction or bias, little is known about how to steer active particles in situations where no permanent bias can be realized. Here, we show that ac fields with a vanishing time average provide an alternative route to steering active particles. We exemplify this route for inertial active particles in a gravitational field, observing that a substantial fraction of them persistently travels in the upward direction upon switching on the ac field, resulting in an inverted sedimentation profile at the top wall of a confining container. Our results offer a generic control principle which could be used in the future to steer active motion, to direct collective behaviors and to purify mixtures.
title: The spectrum of imaging findings in pulmonary aspergillosis
Creators: name: Limeme, Manel
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Breast
subject: CT
subject: Contrast agent-intravenous
subject: Infection

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: Aspergillosis is a mycotic disease caused by Aspergillus species, usually A fumigates (Fig.1) . Aspergillus is a genus of ubiquitous soil fungi. The histologic, clinical, and radiologic manifestations of pulmonary aspergillosis are determined by the...
On a magnetic characterization of spectral minimal partitions
Creators: name: Helffer, Bernard
name: Hoffmann-Ostenhof, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35B05

description: Given a bounded open set $Ω$ in $ \mathbb R^n$ (or in a Riemannian manifold) and a partition of $Ω$ by $k$ open sets $D_j$, we consider the quantity $\max_j λ(D_j)$ where $λ(D_j)$ is the ground state energy of the Dirichlet realization of the Laplacian in $D_j$. If we denote by $ \mathfrak L_k(Ω)$ the infimum over all the $k$-partitions of $ \max_j λ(D_j)$, a minimal $k$-partition is then a partition which realizes the infimum. When $k=2$, we find the two nodal domains of a second eigenfunction, but the analysis of higher $k$'s is non trivial and quite interesting. In this paper, we give the proof of one conjecture formulated previously by V. Bonnaillie-Noel and B. Helffer about a magnetic characterization of the minimal partitions when $n=2$.
title: Overlook Prevention of Mammography with Computer-Aided Detection
Creators: name: Kuroki, Yoshifumi
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Breast
subject: Mammography
subject: CAD
subject: Cancer

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Purpose… To evaluate the effectiveness of computer-aided detection (CAD) to prevent overlooking in an experimental reading...
title: CT findings of Pulmonary Trichosporonosis
Creators: name: Kawanami, Satoshi
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Transplantation
subject: Occupational / Environmental hazards
subject: Infection
subject: Diagnostic procedure
subject: CT-High Resolution
subject: CT
subject: Conventional radiography
subject: Thorax
subject: Respiratory system
subject: Lung

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To recognize two major CT presentation of pulmonary Trichosporonosis: “summer-type hypersensitivity pneumonitis” in immunosusceptible patients and “invasive pulmonary trichosporonosis” in immunocompromised patients with severe...
Non-Markovian dynamics in two-qubit dephasing channels with an application to superdense coding
Creators: name: Karlsson, Antti
name: Lyyra, Henri
name: Laine, Elsi-Mari
name: Maniscalco, Sabrina
name: Piilo, Jyrki
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the performance of two measures of non-Markovianity in detecting memory effects in two-qubit dephasing channels. By combining independent Markovian and non-Markovian noise on the qubits, our results show that the trace distance measure is able to detect the memory effects when at least one of the local channels displays non-Markovianity. A measure based on channel capacity, in turn, becomes non-zero when the global two-qubit dynamics shows memory effects. We apply these schemes to a well-known superdense coding protocol and demonstrate an optimal noise configuration to maximize the information transmission with independent local noises.
Coupled CP tensor decomposition with shared and distinct components for multi-task fMRI data fusion
Creators: name: Borsoi, Ricardo Augusto
name: Lehmann, Isabell
name: Akhonda, Mohammad Abu Baker Siddique
name: Calhoun, Vince
name: Usevich, Konstantin
name: Brie, David
name: Adali, Tülay
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Discovering components that are shared in multiple datasets, next to dataset-specific features, has great potential for studying the relationships between different subjects or tasks in functional Magnetic Resonance Imaging (fMRI) data. Coupled matrix and tensor factorization approaches have been useful for flexible data fusion, or decomposition to extract features that can be used in multiple ways. However, existing methods do not directly recover shared and dataset-specific components, which requires post-processing steps involving additional hyperparameter selection. In this paper, we propose a tensor-based framework for multi-task fMRI data fusion, using a partially constrained canonical polyadic (CP) decomposition model. Differently from previous approaches, the proposed method directly recovers shared and dataset-specific components, leading to results that are directly interpretable. A strategy to select a highly reproducible solution to the decomposition is also proposed. We evaluate the proposed methodology on real fMRI data of three tasks, and show that the proposed method finds meaningful components that clearly identify group differences between patients with schizophrenia and healthy controls.
title: Non traumatic acute abdomen in pediatric patients: US Imaging with clinical and surgical correlation—A case-based approach
Creators: name: Miele, Vittorio
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Acute
subject: Diagnostic procedure
subject: Decision analysis
subject: Ultrasound-Power Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Paediatric
subject: Emergency
subject: Abdomen

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: The purpose of this exhibit is to review US appearance of the most common causes of non traumatic acute abdomen in pediatric patients and to give a practical approach, showing different clinical cases. Fig....
Optimal CCD readout by digital correlated double sampling
Creators: name: Alessandri, Cristobal
name: Abusleme, Angel
name: Guzman, Dani
name: Passalacqua, Ignacio
name: Alvarez-Fontecilla, Enrique
name: Guarini, Marcelo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Digital correlated double sampling (DCDS), a readout technique for charge-coupled devices (CCD), is gaining popularity in astronomical applications. By using an oversampling ADC and a digital filter, a DCDS system can achieve a better performance than traditional analogue readout techniques at the expense of a more complex system analysis. Several attempts to analyse and optimize a DCDS system have been reported, but most of the work presented in the literature has been experimental. Some approximate analytical tools have been presented for independent parameters of the system, but the overall performance and trade-offs have not been yet modelled. Furthermore, there is disagreement among experimental results that cannot be explained by the analytical tools available. In this work, a theoretical analysis of a generic DCDS readout system is presented, including key aspects such as the signal conditioning stage, the ADC resolution, the sampling frequency and the digital filter implementation. By using a time-domain noise model, the effect of the digital filter is properly modelled as a discrete-time process, thus avoiding the imprecision of continuous-time approximations that have been used so far. As a result, an accurate, closed-form expression for the signal-to-noise ratio at the output of the readout system is reached. This expression can be easily optimized in order to meet a set of specifications for a given CCD, thus providing a systematic design methodology for an optimal readout system. Simulated results are presented to validate the theory, obtained with both time- and frequency-domain noise generation models for completeness.
description: This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The version of record is available online via the DOI or at: http://mnras.oxfordjournals.org/content/455/2/1443.full.pdf
NASA Open-Source Science Initiative and Transform to Open Science at AMS 2023 Meeting
Creators: name: Murphy, Kevin
name: Baynes, Katie
name: Crawford, Steve
name: Gentemann, Chelle
name: Ivey, Yvonne
name: Truong, Amy
name: Hall, Cynthia
name: Martinez, Isabella
name: Luna-Cruz, Yaitza
name: Bremner, Paul
Publisher: name: Zenodo
Year: 2023

description: NASA's Open-Source Science Initiative (OSSI) and and Transform to Open Science (TOPS) teams participated in the 2023 meeting of the American Meteorological Society. From Jan 7 through Jan 12, team member's presented on the goals and purpose of both OSSI and TOPS, encouraged the audience to pre-enroll for the NASA Open Science Curriculum, and shared future opportunities for funding. TOPS facilitated a Presidential Session with NASA, NOAA, DOE, NSF, USGS and The White House Office of Science and Technology Policy. TOPS also taught 4 workshops on the first OpenCore module, Ethos of Open Science.
The function of Christian letters of recommendation: from Paul to Julian
Creators: name: File, Jason
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: This paper explores the function of Christian letters of recommendation, from the time of Paul (c. 50 CE) to the time of Emperor Julian (c. 350 CE). The first chapter provides background information concerning the function of letters of recommendation generally in antiquity. It is argued that the primary functions of such letters in Greco-Roman society was to provide hospitality for the traveler, and to testify to their trustworthiness. Where pagans used such letters for business or filial purposes, the early Christian church used them to build religious networks across the wide span of the Mediterranean world and the Levant. The second chapter of the thesis takes up the subject of hospitality practices in the Christian mission, and the third explores the use of letters of recommendation in the writings of the apostle Paul. Letters of recommendation were extremely important for the growth, spread and development of the Christian church.
title: 128-slice dual source CT in pediatric CT: technological improvements, dose reduction and challenges in robust protocol design
Creators: name: Booij, R
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Transplantation
subject: Congenital
subject: Technical aspects
subject: Radiation safety
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Respiratory system
subject: Paediatric

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: In general, Computed Tomography is not the first modality of choice in imaging children. With the introduction of the second-generation Dual Source CT and the Flash technology, even moving children can be examined without the need of sedation. New...
Phase ordering in 3d disordered systems
Creators: name: Corberi, Federico
name: Lippiello, Eugenio
name: Zannetti, Marco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study numerically the phase-ordering kinetics of the site-diluted and bond-diluted Ising models after a quench from an infinite to a low temperature. We show that the speed of growth of the ordered domain's size is non-monotonous with respect to the amount of dilution $D$: Starting from the pure case $D=0$ the system slows down when dilution is added, as it is usually expected when disorder is introduced, but only up to a certain value $D^*$ beyond which the speed of growth raises again. We interpret this counterintuitive fact in a renormalization-group inspired framework, along the same lines proposed for the corresponding two-dimensional systems, where a similar pattern was observed.
description: 8 pages, 4 figures.To appear on Journal of Statistical Mechanics: Theory and Experiment. arXiv admin note: text overlap with arXiv:1306.5147
title: Role of Contrast Enhanced Ultrasound (CEUS) in the evaluation of localized low-energy abdominal trauma in a pediatric population: our initial experience
Creators: name: Miele, Vittorio
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Abdomen
subject: Paediatric
subject: Emergency
subject: Ultrasound
subject: CT
subject: Contrast agent-intravenous
subject: Experimental investigations
subject: Trauma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To assess the feasibility and reproducibility of CEUS in the study of low-energy abdominal trauma compared to baseline-US and MDCT in pediatric patients. Illustrate the different CEUS patterns and focus on the typical direct and indirect signs....
title: The value of diffusion tensor imaging (DTI) and tractography in patients with intraspinal tumours: a preliminary study
Creators: name: Cartes-Zumelzu, Fabiola
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology spine
subject: MR physics
subject: Musculoskeletal spine
subject: MR-Diffusion/Perfusion
subject: MR
subject: MR-Functional imaging
subject: Imaging sequences

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The aim of this prospective study was to evaluate the value of diffusion tensor (DT) imaging in intraspinal cord tumors . Spinal cord tumors are rare lesions, especially when located intremedullary (1). Despites the advances made in microsurgical...
title: Cycling accidents registered at a department of radiology in 2010
Creators: name: Opsahl, Jan-Henrik
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Musculoskeletal bone
subject: Trauma
subject: Conventional radiography
subject: CT
subject: Structured reporting
subject: Socio-economic issues
subject: Trauma
subject: Athletic injuries

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Bicyclists carry a higher risk of injury requiring physician consultation, radiological evaluation and hospitalization than motor vehicle occupants. The purpose of our study was to determine the incidence of cycling-related injuries of a severity...
title: Complications of Breast Mammoplasty – A Pictorial Review
Creators: name: Tam, Ka Ying Hillary
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Prostheses
subject: Foreign bodies
subject: Abscess
subject: Complications
subject: Ultrasound
subject: MR
subject: Mammography
subject: Breast

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: We aim at performed a comprehensive review on the imaging features of the implant materials used and the common and uncommon associated...
title: Imaging and pathologic findings of congenital intracranial tumors in fetus and infant: A pictorial review
Creators: name: Popescu, Irina
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Foetus
subject: Congenital
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: Ultrasound
subject: MR
subject: CT
subject: Paediatric
subject: Neuroradiology brain
subject: CNS

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: 1. To present a pictorial review covering a range of imaging featuresof common congenital intracranial tumors depicted in infants that were referred to our department. 2. To demonstrate the contribution of pregnancy and screening ultrasound...
Systematic study of $α$ decay half-lives for even-even nuclei within a two-potential approach
Creators: name: Sun, Xiao-Dong
name: Guo, Ping
name: Li, Xiao-Hua
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: $α$ decay is a common and important process for natural radioactivity of heavy and superheavy nuclei. The $α$ decay half-lives for even-even nuclei from Z=62 to Z=118 are systematically researched based on the two-potential approach with a quasi-stationary state approximation. To describe the deviations between experimental half-lives and calculated results due to the nuclear shell structure, a hindrance factor related with $α$ particle preformation probability is introduced. Our results can well reproduce the experimental data equally to the density-dependent cluster model and the generalized liquid drop model. We also study the isospin effect of nuclear potential in this work. Considering the isospin effect the calculated results improved about 7.3$\%$.
title: T1-mapping of the right ventricular myocardium – A feasibility study
Creators: name: Kawel-Böhm, Nadine
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: MR
subject: Cardiac
subject: Imaging sequences
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: In cardiac magnetic resonance imaging (CMR) focal myocardial scar can be demonstrated by delayed gadolinium enhancement. Since a correlation between post-contrast myocardial T1 relaxation time and histologically proven fibrosis has been...
title: Reproducibility of semiautomated airway measurements on 64-detector row CT at inspiratory and expiratory scans: impact of two reconstruction algorithms
Creators: name: Larici, Anna Rita
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Thorax
subject: CT-Quantitative
subject: Computer Applications-Detection, diagnosis
subject: Chronic obstructive airways disease

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The airflow limitation that characterizes chronic obstructive pulmonary disease (COPD) is caused by a combination of emphysema-induced loss of elastic recoil and small airway chronic inflammation and remodeling. Small airways with a luminal diameter...
title: Inverted papilloma - a rare cause of nasal obstruction
Creators: name: Breining, Thomas
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cancer
subject: Education
subject: MR
subject: CT
subject: Oncology
subject: Ear / Nose / Throat

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: The aim of this poster is to visualize the characteristics of the inverted papilloma (IP). Therefore we present images ofcomputed tomography (CT) and magnetic resonance imaging (MRI) of a patient with histologically proven IP. Furthermore, we want...
Which U.S. Schools Use Response-to-Intervention Approaches to Determine Disability Eligibility?
Creators: name: Woods, Adrienne
name: Morgan, Paul
name: Hu, Eric Hengyu
name: Gloski, Cecelia
name: Wang, Yangyang
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Disability and Equity in Education
subject: Education
subject: Accessibility
subject: Special Education and Teaching
subject: disability
subject: multi-tiered systems of support
subject: response-to-intervention
subject: schools
subject: special education

description: Research Goal/Justification: To preregister our exploratory descriptive analyses on how different types of schools participating in a nationally-representative study implemented RtI. Because this is exploratory, we do not make a priori hypotheses about the direction of statistical significance. We expect to find statistically significant differences (H1) between schools for our research questions below, while our null hypothesis is that no statistically significant differences exist (H0).
title: Accesory ossicles and sesamoid bones of the foot. Review of the anatomy and clinical relevance
Creators: name: Joaquín Laguna, Alfredo
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Musculoskeletal bone
subject: Digital radiography
subject: MR
subject: CT
subject: Education

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: - Know the anatomy of the foot and normal variants. - Learn to differentiate accessory ossicles and bony avulsions or calcifications in clinical...
Scenario Planning for Restorative Justice in Lakeland
Creators: name: Abban, John
name: Abe, Danielle
name: Asamoah, Heather
name: Dyson, Katharine
name: Farieta, Maria
name: Hackman, Michael
name: Jett, Connor
name: Kaku, Upasana
name: Kaushik, Redowan
name: Madden, Maureen
name: Mekonnen, Elizabeth
name: Mitchell, Caitlyn
name: Nkwantabisah, Pamela Owusu
name: Ripley, Benjamin
name: Spaniol, Matthew
name: Whiteheart, Rachel
Publisher: name: Partnership for Action Learning in Sustainability (PALS)
Year: 2022
Subjects: National Center for Smart Growth
PALS
Sustainability
Maryland
Prince George's County
College Park
School of Planning and Community Development
Restorative Justice
Community Planning
Community Engagement
Urban Planning

description: Final project for URSP708: Community Planning Studio (Fall 2022). University of Maryland, College Park.
description: This report begins with a discussion of the concept of restorative justice and the three themes that guided and organized our work — community infrastructure, housing and land use, and climate change adaptation and mitigation. Following this introduction of the three guiding themes, the report contains a summary of our analysis of existing conditions, including a review of different planning sectors, a brief history of Lakeland, and a summary of plans and policies that have influenced the course of Lakeland. The next section of the report is a summary of the findings of our various community engagement approaches, including recommendations for future best practices for the city and the Restorative Justice Commission as they continue this work. Finally, we present the three planning scenarios — Status Quo, Reform, and Revolutionary — that envision various alternative futures for Lakeland.
title: To study the role of MRI in non-traumatic orbital pathologies and their management
Creators: name: Taori, Kishor
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Diagnostic procedure
subject: MR
subject: Head and neck
subject: Eyes
subject: Neoplasia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To identify imaging features in various occular & extra-occular orbital pathologies in non-traumatic settings. To characterise the lesion & define extension in neoplastic conditions. To identify their potential complications which have a effect on...
Evaluating Unsupervised Text Classification: Zero-shot and Similarity-based Approaches
Creators: name: Schopf, Tim
name: Braun, Daniel
name: Matthes, Florian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.7

description: Text classification of unseen classes is a challenging Natural Language Processing task and is mainly attempted using two different types of approaches. Similarity-based approaches attempt to classify instances based on similarities between text document representations and class description representations. Zero-shot text classification approaches aim to generalize knowledge gained from a training task by assigning appropriate labels of unknown classes to text documents. Although existing studies have already investigated individual approaches to these categories, the experiments in literature do not provide a consistent comparison. This paper addresses this gap by conducting a systematic evaluation of different similarity-based and zero-shot approaches for text classification of unseen classes. Different state-of-the-art approaches are benchmarked on four text classification datasets, including a new dataset from the medical domain. Additionally, novel SimCSE and SBERT-based baselines are proposed, as other baselines used in existing work yield weak classification results and are easily outperformed. Finally, the novel similarity-based Lbl2TransformerVec approach is presented, which outperforms previous state-of-the-art approaches in unsupervised text classification. Our experiments show that similarity-based approaches significantly outperform zero-shot approaches in most cases. Additionally, using SimCSE or SBERT embeddings instead of simpler text representations increases similarity-based classification results even further.
description: Accepted to 6th International Conference on Natural Language Processing and Information Retrieval (NLPIR '22)