cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Some like it cold: molecular emission and effective dust temperatures of dense cores in the Pipe Nebula
Creators: name: Forbrich, Jan
name: Öberg, Karin
name: Lada, Charles J.
name: Lombardi, Marco
name: Hacar, Alvaro
name: Alves, João
name: Rathborne, Jill M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (abridged) [...] Methods: In a continued study of the molecular core population of the Pipe Nebula, we present a molecular-line survey of 52 cores. Previous research has shown a variety of different chemical evolutionary stages among the cores. Using the Mopra radio telescope, we observed the ground rotational transitions of HCO+, H13CO+, HCN, H13CN, HNC, and N2H+. These data are complemented with near-infrared extinction maps to constrain the column densities, effective dust temperatures derived from Herschel data, and NH3-based gas kinetic temperatures. Results: The target cores are located across the nebula, span visual extinctions between 5 and 67 mag, and effective dust temperatures (averaged along the lines of sight) between 13 and 19 K. The extinction-normalized integrated line intensities, a proxy for the abundance in constant excitation conditions of optically thin lines, vary within an order of magnitude for a given molecule. The effective dust temperatures and gas kinetic temperatures are correlated, but the effective dust temperatures are consistently higher than the gas kinetic temperatures. Combining the molecular line and temperature data, we find that N2H+ is only detected toward the coldest and densest cores while other lines show no correlation with these core properties. Conclusions: Within this large sample, N2H+ is the only species to exclusively trace the coldest and densest cores, in agreement with chemical considerations. In contrast, the common high-density tracers HCN and HNC are present in a majority of cores, demonstrating the utility of these molecules to characterize cores over a large range of extinctions. The correlation between the effective dust temperatures and the gas kinetic temperatures suggests that the former are dominated by dust that is both dense and thermodynamically coupled to the dense gas traced by NH3. [...]
description: A&A, in press
Creación de significados actitudinales multimodales en Bizarre Foods. Colombia: jungle, rats & reptiles.
Creators: name: González Barrera, Isabela
Publisher: name: Universidad de Cartagena
Year: 2023
Subjects: subject: Análisis de discurso
subject: Racismo - Aspectos sociales
subject: Programas de televisión - Aspectos sociales - Colombia

description: Este proyecto tiene como objeto mostrar cómo se crean significados multimodales actitudinales en el programa Bizarre Foods America: Colombia Jungle Rats and Reptiles, en el segmento escenificado en el mercado de Bazurto y de qué manera algunos de estos significados legitiman la desigualdad y la discriminación en las relaciones interpersonales entre las personas negras y blancas en Cartagena a través de narrativas sobre las prácticas culinarias cartageneras. El marco teórico y metodológico que orienta esta investigación se fundamenta en el análisis crítico del discurso multimodal y la Teoría de la Valoración. Los primeros resultados muestran, en primer lugar, una propuesta de transcripción de los recursos multimodales ocurridos en el episodio (macrofases y fases) y, en segundo lugar, una interpretación de las estrategias valorativas desplegadas por estos recursos, las cuales nos permiten concluir que en el programa se legitiman la desigualdad y la discriminación en las relaciones interpersonales entre las personas negras y blancas en Cartagena, a través de narrativas sobre las prácticas culinarias cartageneras.
Sharp Morrey-Sobolev inequalities on complete Riemannian Manifolds
Creators: name: Kristály, Alexandru
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: Two Morrey-Sobolev inequalities (with support-bound and $L^1-$bound, respectively) are investigated on complete Riemannian manifolds with their sharp constants in $\mathbb R^n$. We prove the following results in both cases: $\bullet$ If $(M,g)$ is a {\it Cartan-Hadamard manifold} which verifies the $n-$dimensional Cartan-Hadamard conjecture, sharp Morrey-Sobolev inequalities hold on $(M,g)$. Moreover, extremals exist if and only if $(M,g)$ is isometric to the standard Euclidean space $(\mathbb R^n,e)$. $\bullet$ If $(M,g)$ has {\it non-negative Ricci curvature}, $(M,g)$ supports the sharp Morrey-Sobolev inequalities if and only if $(M,g)$ is isometric to $(\mathbb R^n,e)$.
description: 15 pages, in press (Potential Analysis, 2014)
title: Artifact suppression of EFOV using the bolus and Iterative Reconstruction Algorithm
Creators: name: Esaki, Tooru
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Artifacts
subject: Technical aspects
subject: CT
subject: Radiographers

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Scan field of view (SFOV) of computed tomography (CT) is limited. The image is not reconstructed when the target imaging region does not fit in SFOV due to the physique and position of the examinee. Extended field of view (EFOV) algorithms to...
Holographic dark energy satisfying the energy conditions in Lovelock gravity
Creators: name: Bousder, M.
name: Salmani, E.
name: Fatimy, A. El
name: Ez-Zahraouy, H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we show that the holographic dark energy density hides in the solutions of Lovelock gravity for black holes. Using the obtained mass and temperature we find density equations. We propose a physical interpretation of the rescaled Lovelock couplings as a topological mass that describes the Lovelock branch. In addition to this, we present new solutions that satisfy the energy conditions according to the Lovelock coupling and the horizon curvatures. This work can be extended to the equation of the state ω_{Λ} of dark energy in third-order Lovelock gravity. We show that the value "-1" represents a stable equilibrium of ω_{Λ}.
description: 16 pages, 2 figures
title: Strengthening surveillance systems for Antimicrobial Resistance in Urinary Tract infections in Kenya – Report from Fleming Fund fellowship programme
Creators: name: Bartonjo, Grace
name: Aiken, Alexander M
Publisher: name: London School of Hygiene & Tropical Medicine
Year: 2022

description: Background: Urinary Tract Infection (UTI) is one of the most common reasons for outpatient attendance and antibiotic use worldwide. Tackling the problem of antimicrobial resistance (AMR) in Low- and Middle-Income Countries such as Kenya requires laboratory surveillance systems that can correctly identify bacterial pathogens from urine samples and perform antimicrobial susceptibility testing (AST). In Kenya, there are many shortcomings in public-sector microbiology laboratories, including limited professional expertise in the clinical interpretation of urine samples. Methods: This project aimed to deliver training on identification and AST for staff at five hospital laboratories participating in the Kenyan AMR surveillance network. We made local needs assessments, delivered practical training sessions face-to-face and administered written and practical competency assessments for all participants. Results: Trainings were conducted between November 2021 and January 2022 with a total of 13 laboratory staff trained. Participants had previously received a median of 2.3 months (IQR 1-7 months) of training time in microbiology. There was a substantial improvement in written assessment scores from a median of 46/100 pre-training (IQR 36-64) to a median of 90/100 post-training (IQR 85-92). The largest improvements were seen amongst staff with the lowest prior levels of microbiology training (MLS Diploma), though improvements were also seen for staff with BSc and MSc qualifications. Practical assessment included use of standardized organisms – all participants performed well in this practical assessment. Conclusion: We found that prior to the training, all staff performed relatively poorly on a standardized assessment regarding knowledge and processing of urine samples. However, all staff substantially improved following this 5-day training delivered by a single trainer. We estimated that the cost of delivering this training for one hospital was approximately KES 500,000. Training microbiology staff in the accurate processing of urine sample will be an important activity for a Kenyan AMR surveillance system. These training materials, if delivered by an experienced trainer, can achieve a clear improvement in knowledge levels and practical competence.
Additional file 1 of Social stressors and social resources at work and their association with self-reported health complaints among ready-made garment workers in Bangladesh: a cross-sectional study
Creators: name: Dreher, Annegret
name: Yusuf, Rita
name: Ashraf, Hasan
name: Ahmed, Syed A. K. Shifat
name: Strümpell, Christian
name: Loerbroks, Adrian
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 1.
Masses of the components of SB2 binaries observed with Gaia. I. Selection of the sample and mass ratios of 20 new SB2s discovered with Sophie
Creators: name: Halbwachs, Jean-Louis
name: Arenou, Frédéric
name: Pourbaix, Dimitri
name: Famaey, Benoît
name: Guillout, Patrick
name: Lebreton, Yveline
name: Salomon, Jean-Baptiste
name: Tal-Or, Lev
name: Ibata, Rodrigo
name: Mazeh, Tsevi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In anticipation of the Gaia astrometric mission, a large sample of spectroscopic binaries is being observed since 2010 with the Sophie spectrograph at the Haute--Provence Observatory. Our aim is to derive the orbital elements of double-lined spectroscopic binaries (SB2s) with an accuracy sufficient to finally obtain the masses of the components with relative errors as small as 1% when the astrometric measurements of Gaia are taken into account. Simultaneously, the luminosities of the components in the Gaia photometric band G will also be obtained. Our observation program started with 200 SBs, including 152 systems that were only known as single-lined. Thanks to the high efficiency of the Sophie spectrograph, an additional component was found for 25 SBs. After rejection of 5 multiple systems, 20 new SB2s were retained, including 8 binaries with evolved primary, and their mass ratios were derived. Our final sample contains 68 SB2s, including 2 late-type giants and 10 other evolved stars.
description: 8 pages, 3 figures, accepted for publication in MNRAS
Procesos identitarios en el cabildo indígena Zenú Zhandero de Bayunca: posicionamientos indexicales frente al español normativo.
Creators: name: Álvarez Bossio, Paula Andrea
Publisher: name: Universidad de Cartagena
Year: 2023
Subjects: subject: Identidad - Memoria - Historia
subject: Indígena - Cultura colectiva - Colombia
subject: Español - Gramática - Lenguaje y lenguas

description: Este proyecto tiene como objeto observar la construcción de la identidad como un proceso interaccional y emergente a través de posicionamientos indexicales. Además, se pudo concluir que estos posicionamientos remiten a la ideología de la norma en cuanto al uso del español hablado por los miembros, especialmente en contextos formales. Los datos fueron recolectados entre los años 2019 y 2022 donde se recurrió a métodos etnográficos propios de la lingüística sociocultural y la antropología lingüística. Se analizó la identidad desde los conceptos de posicionamiento e indexicalidad.El cabildo indígena zenú Zhandero de Bayunca es uno de los tantos cabildos asentados en el corregimiento de Bayunca. Por ser pertenecientes al gran pueblo zenú, históricamente reconocido, no tienen su lengua propia, pero hace más de una década adoptaron el español como su lengua de interacción.
title: Adrenal Lesions - Differentiating the Differentials.
Creators: name: Abubacker Sulaiman, Farook
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Outcomes
subject: Imaging sequences
subject: MR
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To define adrenal gland lesions and to differentiate them by analyzing their features on radiological and nuclear medicine imaging. To illustrate and describe the appropriate radiological work-up for diseases affecting the adrenal gland. To focus on...
Self‐efficacy, sympathy, and attributions: Understanding helping intentions towards disclosers of mental health concerns on social media
Creators: name: White, Jessica
name: Ahern, Elayne
Publisher: name: University of Limerick
Year: 2022
Subjects: subject: Psychology
subject: FOS: Psychology

description: Mental health disclosures increasingly occur on online platforms. In a moderated‐ mediation analysis, we assessed an adapted Corrigan's attribution model (2003) including factors such as the sincerity of online disclosure and support self‐efficacy to predict helping intentions on social media. Participants (N = 177) were randomly allocated to one of three conditions and presented with a social media vignette experimentally manipulating controllability attributions (low, high, neutral controlla?bility). Participants completed controllability, sincerity, sympathy, self‐efficacy, and helping intentions questionnaires. While preliminary exploratory analyses revealed that the proposed model significantly explained helping intentions, the proposed mechanisms of serial‐mediation via sincerity of disclosure and sympathy was not supported, nor was this dependent on self‐efficacy. Nonetheless, sympathy and self‐ efficacy uniquely and significantly explained helping intentions. Thus, an intervention that upskills individuals in online support provision offers promise in terms of accessible, online, community‐based treatment initiatives.
Neuroprotection with an Erythropoietin Mimetic Peptide (pHBSP) in a Model of Mild Traumatic Brain Injury Complicated by Hemorrhagic Shock
Creators: name: Tian, Tian Siva
name: Shah, Mahek
name: Hand, Carla Cerami
name: Cherian, Leela
name: Grill, Raymond J.
name: Garcia, Robert
name: Navarro, Jovany Cruz
name: Hannay, H. Julia
name: Robertson, Claudia S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Pyroglutamate helix B surface peptide (pHBSP) is an 11 amino acid peptide, designed to interact with a novel cell surface receptor, composed of the classical erythropoietin (EPO) receptor disulfide linked to the beta common receptor. pHBSP has the cytoprotective effects of EPO without stimulating erythropoiesis. Effects on early cerebral hemodynamics and neurological outcome at 2 weeks post-injury were compared in a rat model of mild cortical impact injury (3m/sec, 2.5 mm deformation) followed by 50 min of hemorrhagic hypotension (MAP 40 mm Hg for 50 min). Rats were randomly assigned to receive 5000 U/kg of EPO, 30 μg/kg of pHBSP, or an inactive substance every 12 h for 3 days, starting at the end of resuscitation from the hemorrhagic hypotension, which was 110 min post-injury. Both treatments reduced contusion volume at 2 weeks post-injury, from 20.8±2.8 mm3 in the control groups to 7.7±2.0 mm3 in the EPO-treated group and 5.9±1.5 mm3 in the pHBSP-treated group (p=0.001). Both agents improved recovery of cerebral blood flow in the injured brain following resuscitation, and resulted in more rapid recovery of performance on beam balancing and beam walking tests. These studies suggest that pHBSP has neuroprotective effects similar to EPO in this model of combined brain injury and hypotension. pHBSP may be more useful in the clinical situation because there is less risk of thrombotic adverse effects.
Possibility of Observing Spiral Scattering of Relativistic Particles in a Bent Crystal
Creators: name: Kovalev, Gennady V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The peak position, impact-parameter range, and optimal conditions for observing spiral scattering of relativistic particles in a uniformly bent crystal are estimated. The existence of spiral scattering with a square-root singularity is pointed out. In this case, the secondary process of volume capture to the channeling mode is absent and the conditions for observing this effect are most favorable.
description: 5 pages, 5 figures, article
Estrategias y recursos retóricos en el discurso de los vendedores venezolanos en el sistema integrado de transporte masivo de Cartagena de Indias (transcaribe).
Creators: name: Julio Payares, Saydis Del Carmen
Publisher: name: Universidad de Cartagena
Year: 2023
Subjects: subject: Análisis de discurso
subject: Vendedores ambulantes - Análisis
subject: Transcaribe - Cartagena - Colombia

description: Este proyecto tiene como objeto analizar los recursos retóricos en el discurso utilizado en el transporte masivo de Cartagena de Indias (Transcaribe), por parte de vendedores venezolanos en condición de migrantes, quienes debido a la crisis de su país, han tomado este medio para vender productos y pedir dinero para el sustento de sus familias. El análisis se realiza tomando como referencia las componentes presentadas por la retórica aristotélica: inventio, dispositio, elocutio, memoria y actio). Las bases teóricas son tomadas del análisis del discurso, en la misma línea de investigación, las cuales permitieron identificar los recursos retóricas en el discurso emitido. La recolección de los datos se obtuvo mediante grabaciones y entrevistas, las cuales se transcribieron. Entre los resultados más relevantes del análisis de los elementos retóricos, se encontró que los vendedores estimulan las emociones del público, mediante estrategias persuasivas que incentivan la ayuda del público.
Additional file 1 of Frequency of Salmonella serotypes among children in Iran: antimicrobial susceptibility, biofilm formation, and virulence genes
Creators: name: Rezaei, Akram
name: Hashemi, Farhad B.
name: Heshteli, Roya Rasooly
name: Rahmani, Maryam
name: Halimi, Shahnaz
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1. Table S1. Overall antimicrobial resistance rates according to Salmonella serogroup. Table S2. Frequency of antimicrobial double-resistance compared among Salmonella serogroups. Table S3. Comparison of frequency of virulence gene combination according to Salmonella serogroups.
title: Subsolid pulmonary nodules: diagnostic evaluation and management
Creators: name: Laganâ, Claudio
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Biopsy
subject: CT-High Resolution
subject: CT
subject: Thorax
subject: Oncology
subject: Lung

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Define pulmonary subsolide nodule (SSNs). Suggest management describing guidelines and biopsy indications. Discuss diferential...
Bistable forespore engulfment in Bacillus subtilis by a zipper mechanism in absence of the cell wall
Creators: name: Ojkic, Nikola
name: López-Garrido, Javier
name: Pogliano, Kit
name: Endres, Robert G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences

description: To survive starvation, the bacterium Bacillus subtilis forms durable spores. The initial step of sporulation is asymmetric cell division, leading to a large mother-cell and a small forespore compartment. After division is completed and the dividing septum is thinned, the mother cell engulfs the forespore in a slow process based on cell-wall degradation and synthesis. However, recently a new cell-wall independent mechanism was shown to significantly contribute, which can even lead to fast engulfment in $\sim$ 60 $%$ of the cases when the cell wall is completely removed. In this backup mechanism, strong ligand-receptor binding between mother-cell protein SpoIIIAH and forespore-protein SpoIIQ leads to zipper-like engulfment, but quantitative understanding is missing. In our work, we combined fluorescence image analysis and stochastic Langevin simulations of the fluctuating membrane to investigate the origin of fast bistable engulfment in absence of the cell wall. Our cell morphologies compare favorably with experimental time-lapse microscopy, with engulfment sensitive to the number of SpoIIQ-SpoIIIAH bonds in a threshold-like manner. By systematic exploration of model parameters, we predict regions of osmotic pressure and membrane-surface tension that produce successful engulfment. Indeed, decreasing the medium osmolarity in experiments prevents engulfment in line with our predictions. Forespore engulfment may thus not only be an ideal model system to study decision-making in single cells, but its biophysical principles are likely applicable to engulfment in other cell types, e.g. during phagocytosis in eukaryotes.
Episodic Memory in Former Professional Football Players with a History of Concussion: An Event-Related Functional Neuroimaging Study
Creators: name: Guskiewicz, Kevin M.
name: Ford, Jaclyn H.
name: Giovanello, Kelly S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Previous research has demonstrated that sport-related concussions can have short-term effects on cognitive processes, but the long-term consequences are less understood and warrant more research. This study was the first to use event-related functional magnetic resonance imaging (fMRI) to examine long-term differences in neural activity during memory tasks in former athletes who have sustained multiple sport-related concussions. In an event-related fMRI study, former football players reporting multiple sport-related concussions (i.e., three or more) were compared with players who reported fewer than three concussions during a memory paradigm examining item memory (i.e., memory for the particular elements of an event) and relational memory (i.e., memory for the relationships between elements). Behaviorally, we observed that concussion history did not significantly affect behavioral performance, because persons in the low and high concussion groups had equivalent performance on both memory tasks, and in addition, that concussion history was not associated with any behavioral memory measures. Despite demonstrating equivalent behavioral performance, the two groups of former players demonstrated different neural recruitment patterns during relational memory retrieval, suggesting that multiple concussions may be associated with functional inefficiencies in the relational memory network. In addition, the number of previous concussions significantly correlated with functional activity in a number of brain regions, including the medial temporal lobe and inferior parietal lobe. Our results provide important insights in understanding the long-term functional consequences of sustaining multiple sports-related concussions.
Treatment of Mild Traumatic Brain Injury with an Erythropoietin-Mimetic Peptide
Creators: name: Hannay, H. Julia
name: Tian, Tian Siva
name: Cerami Hand, Carla
name: Robertson, Claudia S.
name: Garcia, Robert
name: Grill, Raymond J.
name: Gaddam, Samson Sujit Kumar
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Mild traumatic brain injury (mTBI) results in an estimated 75–90% of the 1.7 million TBI-related emergency room visits each year. Post-concussion symptoms, which can include impaired memory problems, may persist for prolonged periods of time in a fraction of these cases. The purpose of this study was to determine if an erythropoietin-mimetic peptide, pyroglutamate helix B surface peptide (pHBSP), would improve neurological outcomes following mTBI. Sixty-four rats were randomly assigned to pHBSP or control (inactive peptide) 30 μg/kg IP every 12 h for 3 days, starting at either 1 hour (early treatment) or 24 h (delayed treatment), after mTBI (cortical impact injury 3 m/sec, 2.5 mm deformation). Treatment with pHBSP resulted in significantly improved performance on the Morris water maze task. Rats that received pHBSP required 22.3±1.3 sec to find the platform, compared to 26.3±1.3 sec in control rats (p=0.022). The rats that received pHBSP also traveled a significantly shorter distance to get to the platform, 5.0±0.3 meters, compared to 6.1±0.3 meters in control rats (p=0.019). Motor tasks were only transiently impaired in this mTBI model, and no treatment effect on motor performance was observed with pHBSP. Despite the minimal tissue injury with this mTBI model, there was significant activation of inflammatory cells identified by labeling with CD68, which was reduced in the pHBSP-treated animals. The results suggest that pHBSP may improve cognitive function following mTBI.
title: Radiological Evaluation of Pediatric Renal masses.
Creators: name: SARAVANAN, K
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Inflammation
subject: Infection
subject: Education
subject: MR
subject: CT
subject: Conventional radiography
subject: Kidney
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the renal masses commonly affecting the children. To recognize and evaluate the masses with varying...
Infra-red Abelian dominance without Abelian-projection
Creators: name: Raval, Haresh
name: Yajnik, Urjit A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Maximal Abelian gauge has been a particular choice to study dynamical generation of off-diagonal gluon masses in QCD. This gauge is a special case of Abelian projection. Massive off-diagonal gluons are considered a clue to Abelian dominance. Here we propose a gauge condition which is quadratic in fields and which does not fall in the class of Abelian projection. However it does generate off-diagonal gluon masses dynamically thus hinting at Abelian dominance in this gauge too.
title: Patent ductus venosus in adults: How to look for? What to look for?
Creators: name: Yu, Man Leung
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Congenital
subject: Cirrhosis
subject: Shunts
subject: MR
subject: CT
subject: Veins / Vena cava
subject: Anatomy
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Review the rare manifestations of patent ductus venosus in adulthood Describe the pathophysiology of complications of patent ductus venosus Illustrate the CT and MR features of patent ductus venosus and its complications in adults Discuss the...
Nonparametric Estimation of the Service Time Distribution in the Discrete-Time $GI/G/\infty$ Queue with Partial Information
Creators: name: Schweer, Sebastian
name: Wichelhaus, Cornelia
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Estimation of the service time distribution in the discrete-time $GI/G/\infty$-queue based solely on information on the arrival and departure processes is considered. The focus is put on the estimation approach via the so called "sequence of differences". Existing results for this approach are substantially extended by proving a functional central limit theorem for the resultant estimator. Here, the underlying function space is taken to be the space of sequences converging to zero. The moving block bootstrap technique is considered for the estimation of the resultant covariance kernel and is shown to be applicable under mild additional conditions.
description: Accepted for publication in: Stochastic Processes and their Applications
Simulations of Weak Gravitational Lensing - II : Including Finite Support Effects in Cosmic Shear Covariance Matrices
Creators: name: Harnois-Deraps, Joachim
name: van Waerbeke, Ludovic
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) We investigate and quantify the impact of finite simulation volume on weak lensing two- and four-point statistics. These {\it finite support} (FS) effects are modelled for several estimators, simulation box sizes and source redshifts, and validated against a new large suite of 500 $N$-body simulations. The comparison reveals that our theoretical model is accurate to better than 5 per cent for the shear correlation function $ξ_{+}(θ)$ and its error. We find that the most important quantities for FS modelling is the ratio between the measured angle $θ$ and the angular size of the simulation box at the source redshift, $θ_{box}(z_s)$, or the multipole equivalent $\ell / \ell_{box}(z_s)$. When this ratio reaches 0.1, independently of the source redshift, the shear correlation function $ξ_+$ is suppressed by 5, 10, 20 and 25 percent for $L_{box}= 1000$, $500$, $250$ and $147\mbox{Mpc}/h$ respectively. When it reaches 0.2, the suppression exceeds 25 percent even for the largest box. The same effect is observed in $ξ_{-}(θ)$, but at much larger angles. This has important consequences for cosmological analyses using $N$-body simulations to calibrate the impact of non-linear gravitational clustering or to estimate errors and systematics effects, and should not be overlooked. We propose simple semi-analytic solutions to correct for these finite box effects with and without the presence of survey masks, and the method can be generalized to any weak lensing estimator. This offers a graceful solution to the important problem of estimating accurate covariance matrices for weak lensing studies: there is no need to run extra large simulation volumes, as long as the box effects are corrected.
description: 16 pages, 11 figures, MNRAS submitted
Trojan resonant dynamics, stability, and chaotic diffusion, for parameters relevant to exoplanetary systems
Creators: name: Páez, Rocio Isabel
name: Efthymiopoulos, Christos
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the dynamics of small trojan exoplanets in domains of secondary resonances within the tadpole domain of motion. We consider the limit of a massless trojan companion of a giant planet. Without other planets, this is a case of the elliptic restricted three body problem (ERTBP). The presence of more planets (the restricted multi-planet problem, RMPP) induces new direct and indirect secular effects on the trojan's dynamics. In the theoretical part of this paper, we develop a Hamiltonian formalism in action-angle variables, which allows to treat in a unified way resonant dynamics and secular effects on the trojan body in both the ERTBP or the RMPP. Our formalism leads to a decomposition of the Hamiltonian in two parts, $H=H_b+H_{sec}$. $H_b$, called the basic model, describes resonant dynamics in the short-period (epicyclic) and synodic (libration) degrees of freedom. $H_{sec}$ contains only terms depending on slow (secular) angles. $H_b$ is formally identical in the ERTBP and the RMPP, apart from a re-definition of angular variables. An important physical consequence is that the slow chaotic diffusion proceeds in both the ERTBP and the RMPP by a qualitatively similar dynamical mechanism better approximated by the paradigm of `modulational diffusion'. In the numerical part, we focus on the ERTBP for making a numerical demonstration of the chaotic diffusion process along resonances. Using color stability maps, we provide a survey of the resonant web for characteristic mass parameters of the primary, in which the secondary resonances from 1:5 to 1:12 (ratio of the short over the synodic period) and their resonant multiplets appear. We give numerical examples of diffusion of weakly chaotic orbits in the resonant web. We make a statistics of the escaping times in the resonant domain, and find power-law tails of the distribution of escaping times for slowly diffusing chaotic orbits.
description: Accepted for publication in Celestial Mechanics and Dynamical Astronomy
Prevalence of Pituitary Hormone Dysfunction, Metabolic Syndrome, and Impaired Quality of Life in Retired Professional Football Players: A Prospective Study
Creators: name: Lee, Jihey
name: Evans, Diana
name: Wright, Mathew J.
name: Chaloner, Charlene
name: Wang, Christina
name: Guskiewicz, Kevin
name: Kelly, Daniel F.
name: Mathews, Amy
name: Swerdloff, Ronald
name: Barkhoudarian, Garni
name: Cohan, Pejman
name: Sim, Myung-Shin
name: Yuen, Kevin C.J.
name: Kernan, Claudia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Hypopituitarism is common after moderate and severe traumatic brain injury (TBI). Herein, we address the association between mild TBI (mTBI) and pituitary and metabolic function in retired football players. Retirees 30–65 years of age, with one or more years of National Football League (NFL) play and poor quality of life (QoL) based on Short Form 36 (SF-36) Mental Component Score (MCS) were prospectively enrolled. Pituitary hormonal and metabolic syndrome (MetS) testing was performed. Using a glucagon stimulation test, growth hormone deficiency (GHD) was defined with a standard cut point of 3 ng/mL and with a more stringent body mass index (BMI)-adjusted cut point. Subjects with and without hormonal deficiency (HD) were compared in terms of QoL, International Index of Erectile Function (IIEF) scores, metabolic parameters, and football career data. Of 74 subjects, 6 were excluded because of significant non-football-related TBIs. Of the remaining 68 subjects (mean age, 47.3±10.2 years; median NFL years, 5; median NFL concussions, 3; mean BMI, 33.8±6.0), 28 (41.2%) were GHD using a peak GH cutoff of <3 ng/mL. However, with a BMI-adjusted definition of GHD, 13 of 68 (19.1%) were GHD. Using this BMI-adjusted definition, overall HD was found in 16 (23.5%) subjects: 10 (14.7%) with isolated GHD; 3 (4.4%) with isolated hypogonadism; and 3 (4.4%) with both GHD and hypogonadism. Subjects with HD had lower mean scores on the IIEF survey (p=0.016) and trended toward lower scores on the SF-36 MCS (p=0.113). MetS was present in 50% of subjects, including 5 of 6 (83%) with hypogonadism, and 29 of 62 (46.8%) without hypogonadism (p=0.087). Age, BMI, median years in NFL, games played, number of concussions, and acknowledged use of performance-enhancing steroids were similar between HD and non-HD groups. In summary, in this cohort of retired NFL players with poor QoL, 23.5% had HD, including 19% with GHD (using a BMI-adjusted definition), 9% with hypogonadism, and 50% had MetS. Although the cause of HD is unclear, these results suggest that GHD and hypogonadism may contribute to poor QoL, erectile dysfunction, and MetS in this population. Further study of pituitary function is warranted in athletes sustaining repetitive mTBI.
title: Radiological Evaluation of Pediatric Neck masses.
Creators: name: Anith Alfred, J
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Infection
subject: Contrast agent-oral
subject: MR
subject: CT
subject: Soft tissues / Skin
subject: Head and neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review neck lesions commonly affecting children. To characterize various neck lesions based on their imaging...
Non-diffusion theory of weak localization in graphene
Creators: name: Nestoklon, M. O.
name: Averkiev, N. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We put forward a theory of the weak localization in two dimensional graphene layers which explains experimentally observable transition between positive and negative magnetoresistance. Calculations are performed for the whole range of classically weak magnetic field with account on intervalley transitions. Contribution to the quantum correction which stems from closed trajectories with few scatterers is carefully taken into account. We show that intervalley transitions lead not only to the transition from weak antilocalization to the weak localization, but also to the non-monotonous dependence of the conductivity on the magnetic field.
description: 11 pages, 5 figures
Additional file 1 of ‘Why would we not want to keep everybody safe?’ The views of family members of people who use drugs on the implementation of drug consumption rooms in Scotland
Creators: name: Parkes, Tessa
name: Price, Tracey
name: Foster, Rebecca
name: Trayner, Kirsten M. A.
name: Sumnall, Harry R.
name: Livingston, Wulf
name: Perkins, Andy
name: Cairns, Beth
name: Dumbrell, Josh
name: Nicholls, James
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Interview topic guide.
title: Audit cycle of Computed Tomography Pulmonary Angiography (CTPA) usage and positivity rates with introduction of compulsory probability scoring via computerized ordering at James Connolly Memorial Hospital, Dublin
Creators: name: Kennedy, Pádraic
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: CT-Angiography
subject: CT
subject: Thorax
subject: Pulmonary vessels
subject: Lung
subject: Audit and standards
subject: Embolism / Thrombosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Pulmonary embolism (PE) represents a common presentation to emergency departments with significant morbidity and mortality associated. Mortality rates at three months following PE can be as high as 15% (1) accounting for 300,000 deaths annually in...
ARDÁN: Automated reference-free defocus characterization for automotive near-field cameras
Creators: name: Jakab, Daniel
name: Grua, Eoin
name: Mohandas, Reenu
name: Michael Deegan, Brian
name: Scanlan, Tony
name: Molloy, Dara
name: Ward, Enda
name: Eising, Ciarán
Publisher: name: University of Limerick
Year: 2025
Subjects: classificationCode: 40
subject: Engineering

description: Measuring optical quality in camera lenses is crucial in evaluating cameras, especially for safety-critical visual perception tasks in automotive driving. While ground-truth labels and annotations are provided in publicly available automotive datasets for computer vision tasks, there is a lack of information on the image quality of camera lenses used for data collection. To compensate for this, we propose an Automated Reference-free Defocus characterization for Automotive Near-field cameras (ARDÁN) to evaluate Slanted Edges for ISO12233 in five publicly available automotive datasets using a valid and invalid region of interest (ROI) selection system in natural scenes. We use the mean of 50% of the Modulation Transfer Function (MTF50) in three Camera Radii (CaRa) segments and the Overall Spread in Heatmaps (O’SHea) for an 8 × 5 distribution to evaluate the quality of edges in natural scenes. From the experiments performed, lenses with uniform spatial domains (i.e. little distortion) showed that MTF50 was constant between (0.18-0.25cy/px). With image rectification on the same scenes, MTF50 results artificially increased, no longer representing the camera lens. In contrast, for strong radial distortion, MTF50 varied extensively across the spatial domain between (0.12-0.4cy/px), where, in particular, Woodscape gave the highest average of MTF50 per region for natural scenes.
Three quark currents and baryon spin
Creators: name: Buchmann, A. J.
name: Henley, E. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that three-quark axial currents as required by broken SU(6) spin-flavor symmetry reduce the quark spin contribution to proton spin from $Σ_p = 1$ (one-quark axial current value) to $Σ_p = 0.41(12)$ consistent with the empirical value $Σ_{p, exp} = 0.33(08)$. In the case of the $Δ^+(1232)$ baryon, we find that three-quark axial currents increase the one-quark axial current value $Σ_{Δ^+} = 3$ to $Σ_{Δ^+} = 3.87(22)$. We also calculate the quark orbital angular momenta $L_u$ and $L_d$ in the proton and $Δ^+$ and interpret our results in terms of the prolate and oblate geometric shapes of these baryons consistent with their intrinsic quadrupole moments.
description: 3 pages, 1 figure, 22nd European Conference on Few-Body Problems in Physics, Cracow 2013
Early Cortical Thickness Change after Mild Traumatic Brain Injury following Motor Vehicle Collision
Creators: name: Brickman, Kristopher R.
name: Cotton, Andrew S
name: Liberzon, Israel
name: Tamburrino, Marijo B.
name: Lewis, Terrence J.
name: Wang, Xin
name: Xie, Hong
name: McLean, Samuel A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: In a motor vehicle collision (MVC), survivors often receive mild traumatic brain injuries (mTBI). Although there have been some reports of early white matter changes after an mTBI, much less is known about early cortical structural changes. To investigate early cortical changes within a few days after an MVC, we compared cortical thickness of mTBI survivors with non-mTBI survivors, then reexamined cortical thickness in the same survivors 3 months later. MVC survivors were categorized as mTBI or non-mTBI based on concussive symptoms documented in emergency departments (EDs). Cortical thickness was measured from MRI images using FreeSurfer within a few days and again at 3 months after MVC. Post-traumatic stress symptoms and physical conditions were also assessed. Compared with the non-mTBI group (n=23), the mTBI group (n=21) had thicker cortex in the left rostral middle frontal (rMFG) and right precuneus gyri, but thinner cortex in the left posterior middle temporal gyrus at 7.2±3.1 days after MVC. After 3 months, cortical thickness had decreased in left rMFG in the mTBI group but not in the non-mTBI group. The cortical thickness of the right precuneus region in the initial scans was positively correlated with acute traumatic stress symptoms for all survivors and with the number of reduced activity days for mTBI survivors who completed the follow-up. The preliminary results suggest that alterations in cortical thickness may occur at an early stage of mTBI and that frontal cortex structure may change dynamically over the initial 3 months after mTBI.
title: Undergraduate tutored self-assessment by means of radiotorax.es online tool.
Creators: name: Sendra Portero, Francisco
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Computer applications
subject: Thorax
subject: Conventional radiography
subject: Education
subject: eLearning
subject: Education and training

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The importance of self-assessment in radiology has already been shown in several publications [1,2] and it has been described that web resources improve radiological reporting skills [3]. Radiotorax.es is a free an open access internet platform...
Estimating Contact Exposure in Football Using the Head Impact Exposure Estimate
Creators: name: Cox, Leah M.
name: Lynall, Robert C.
name: Guskiewicz, Kevin M.
name: Varangis, Eleanna
name: Kerr, Zachary Y.
name: DeFreese, J.D.
name: Schmidt, Julianne D.
name: Littleton, Ashley C.
name: Marshall, Stephen W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Over the past decade, there has been significant debate regarding the effect of cumulative subconcussive head impacts on short and long-term neurological impairment. This debate remains unresolved, because valid epidemiological estimates of athletes' total contact exposure are lacking. We present a measure to estimate the total hours of contact exposure in football over the majority of an athlete's lifespan. Through a structured oral interview, former football players provided information related to primary position played and participation in games and practice contacts during the pre-season, regular season, and post-season of each year of their high school, college, and professional football careers. Spring football for college was also included. We calculated contact exposure estimates for 64 former football players (n=32 college football only, n=32 professional and college football). The head impact exposure estimate (HIEE) discriminated between individuals who stopped after college football, and individuals who played professional football (p<0.001). The HIEE measure was independent of concussion history (p=0.82). Estimating total hours of contact exposure may allow for the detection of differences between individuals with variation in subconcussive impacts, regardless of concussion history. This measure is valuable for the surveillance of subconcussive impacts and their associated potential negative effects.
Diffusion on the Distorted Fermi Surface
Creators: name: Kolomietz, V. M.
name: Lukyanov, S. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The diffusion approximation to the relaxation on the distorted Fermi surface in a Fermi liquid is considered. The dependence of the relaxation time on the multipolarity of a Fermi surface deformation is established. The time evolution of the non-equilibrium particle-hole excitations is studied.
description: 5 pages, 2 figures. Journal website appears at www.ujp.bitp.kiev.ua
title: Die rückständige Grossmacht / Text: Heiko Biehl ; gelesen von: Christoph Jan Longen
Creators: name: Biehl, Heiko
Publisher: name: ZMSBw
Year: 2023

description: Rezension von: Hildermeier, Manfred Die rückständige Großmacht : Russland und der Westen / Manfred Hildermeier. - Originalausgabe. - München : C.H. Beck, [2022]. - 271 Seiten. (C.H. Beck Paperback ; 6493) Zitierte Literatur: Seite [257]-267. ISBN 978-3-406-79353-0
description: Buchjournal: Angelesen. : das Buchjournal des ZMSBw / Zentrum für Militärgeschichte und Sozialwissenschaften der Bundeswehr; [38]
title: A review of different semi-quantitative MRI scoring systems for hip osteoarthritis
Creators: name: Pintarić, Karlo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Arthritides
subject: Comparative studies
subject: MR
subject: Musculoskeletal joint

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To present different semi-quantitative MRI scoring systems for hip osteoarthritis with pictorial review and introduce their differences, similarities, weaknesses and...