cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geodesic lines in Nearly Kähler S^3\timesS^3
Creators: name: Djorić, Miloš
name: Djorić, Mirjana
name: Moruz, Marilena
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: A nearly Kähler manifold is an almost Hermitian manifold with the weakened Kähler condition, that is, instead of being zero, the covariant derivative of the almost complex structure is skew-symmetric. We give the explicit parameterization of geodesic lines on the nearly Kähler S^3\timesS^3.
title: The radiographer role on the ultrasound measurement of abdominal aortic caliber and quadriceps femoris muscle thickness
Creators: name: Ponte, Henrique
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Tissue characterisation
subject: Patterns of Care
subject: Education and training
subject: Technology assessment
subject: Health policy and practice
subject: Cost-effectiveness
subject: Ultrasound
subject: Radiographers
subject: Musculoskeletal soft tissue
subject: Arteries / Aorta

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Nowadays, obesity is considered one of the biggest public health problems worldwide. In 2016, about 1.9 billion adults over 18 years old were overweight, of whom 650 million were considered obese. Some of the consequences of overweight and obesity...
title: Collateral status coupled with the upper-limit of the onset-to-reperfusion time by dynamic axial computed tomographic angiography for mechanical thrombectomy
Creators: name: Mori, Takahisa
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Acute
subject: Diagnostic procedure
subject: CT-Angiography
subject: Emergency

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Whole-head dynamic computed tomographic angiography (CTA), referred to as 4D-CTA, can visualize vascular flow dynamics in bilateral cranial vessels and is promising for diagnosis and patient selection before mechanical thrombectomy (MT) in cases of...
title: Approach to Ovarian and Adnexal Pathologies: Imaging Overview of IOTA and O-RADS
Creators: name: Sharma, Smily
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Neoplasia
subject: Infection
subject: Structured reporting
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: MR
subject: Genital / Reproductive system female

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Using Case Based Approach, To illustrate in details: 1. Simple descriptors and rules of International Ovarian Tumor Analysis on Ultrasonography 2. Descriptors, Risk stratification categories and Management of Adnexal lesions using Ovarian- Adnexal...
A Meta-Analysis of Off-farm Labor Supply Functions of Farm Households
Creators: name: Balachandran, Rakhe P.
name: Penn, Jerrod
name: Bampasidou, Maria
name: Balachandran, Rakhe P.
name: Penn, Jerrod
name: Bampasidou, Maria
Publisher: name: Unknown
Year: 2019
Subjects: Labor and Human Capital

description: Presentation ID 16812
title: Renal Cell Carcinoma Cryoablation: A Technical Analysis of Operative Parameters.
Creators: name: Balamon, Paul
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Cancer
subject: Ablation procedures
subject: CT
subject: Kidney

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To analyse and qualify the interplay of various operator modifiable parameters on patient outcomes, complication rates and procedure time. There are several operator modifiable parameters, this paper will focus on the number of needles used, iceball...
Different origin of the ferromagnetic order in (Ga,Mn)As and (Ga,Mn)N
Creators: name: Wierzbowska, Malgorzata
name: Sanchez-Portal, Daniel
name: Sanvito, Stefano
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The mechanism for the ferromagnetic order of (Ga,Mn)As and (Ga,Mn)N is extensively studied over a vast range of Mn concentrations. We calculate the electronic structures of these materials using density functional theory in both the local spin density approximation and the LDA+U scheme, that we have now implemented in the code SIESTA. For (Ga,Mn)As, the LDA+U approach leads to a hole mediated picture of the ferromagnetism, with an exchange constant $Nβ$ =~ -2.8 eV. This is smaller than that obtained with LSDA, which overestimates the exchange coupling between Mn ions and the As $p$ holes. In contrast, the ferromagnetism in wurtzite (Ga,Mn)N is caused by the double-exchange mechanism, since a hole of strong $d$ character is found at the Fermi level in both the LSDA and the LDA+U approaches. In this case the coupling between the Mn ions decays rapidly with the Mn-Mn separation. This suggests a two phases picture of the ferromagnetic order in (Ga,Mn)N, with a robust ferromagnetic phase at large Mn concentration coexisting with a diluted weak ferromagnetic phase.
description: 12 pages, 11 figures
Projected Pólya Tree
Creators: name: Nieto-Barajas, Luis
name: Núñez-Antonio, Gabriel
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Molecular Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology
subject: FOS: Biological sciences

description: One way of defining probability distributions for circular variables (directions in two dimensions) is to radially project probability distributions, originally defined on R2, to the unit circle. Projected distributions have proved to be useful in the study of circular and directional data. Although any bivariate distribution can be used to produce a projected circular model, these distributions are typically parametric. In this article we consider a bivariate Pólya tree on R2 and project it to the unit circle to define a new Bayesian nonparametric model for circular data. We study the properties of the proposed model, obtain its posterior characterisation and show its performance with simulated and real datasets.
Atypus formosensis Kayashima 1943
Creators: name: Zhu, Ming-Sheng
name: Zhang, Feng
name: Song, Daxiang
name: Qu, Ping
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Atypidae
Atypus
Atypus formosensis

description: Atypus formosensis Kayashima 1943
 Atypus formosensis Kayashima 1943: 43–44, pl. 5, figs 2, 4 (type specimens lost during World War II, also see Schwendinger 1990). — Lee 1964: 11, pl. 1, fig. E. — Schwendinger 1990: 355.
 Remarks. Kayashima (1943) described this species and provided an illustration of its body. Schwendinger (1990) examined one male specimen collected from Taipei, Taiwan, and pointed out that this species resembles A. karschi but differs in the anterior sigilla being remote from the anterior margin of the sternum, the unpigmented retrolateral patella I, the palpal femur with a deep furrow, and in the less strongly folded upper distal corner of the conductor.
description: Published as part of Zhu, Ming-Sheng, Zhang, Feng, Song, Daxiang & Qu, Ping, 2006, A revision of the genus Atypus in China (Araneae: Atypidae), pp. 1-42 in Zootaxa 1118 on page 10, DOI: 10.5281/zenodo.5778239
CHAOS IV: Gas-Phase Abundance Trends From The First Four CHAOS Galaxies
Creators: name: Berg, Danielle A.
name: Pogge, Richard W.
name: Skillman, Evan D.
name: Croxall, Kevin V.
name: Moustakas, John
name: Rogers, Noah S. J.
name: Sun, Jiayi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The chemical abundances of spiral galaxies, as probed by HII regions across their disks, are key to understanding the evolution of galaxies over a wide range of environments. We present LBT/MODS spectra of 52 HII regions in NGC3184 as part of the CHemical Abundances Of Spirals (CHAOS) project. We explore the direct-method gas-phase abundance trends for the first four CHAOS galaxies, using temperature measurements from one or more auroral line detections in 190 individual HII regions. We find the dispersion in Te-Te relationships is dependent on ionization, as characterized by F_5007/F_3727, and so recommend ionization-based temperature priorities for abundance calculations. We confirm our previous results that [NII] and [SIII] provide the most robust measures of electron temperature in low-ionization zones, while [OIII] provides reliable electron temperatures in high-ionization nebula. We measure relative and absolute abundances for O, N, S, Ar, and Ne. The four CHAOS galaxies marginally conform with a universal O/H gradient, as found by empirical IFU studies when plotted relative to effective radius. However, after adjusting for vertical offsets, we find a tight universal N/O gradient of alpha_N/O = -0.33 dex/Re with sigma_tot. = 0.08 for Rg/Re < 2.0, where N is dominated by secondary production. Despite this tight universal N/O gradient, the scatter in the N/O-O/H relationship is significant. Interestingly, the scatter is similar when N/O is plotted relative to O/H or S/H. The observable ionic states of S probe lower ionization and excitation energies than O, which might be more appropriate for characterizing abundances in metal-rich HII regions.
description: Accepted for publication in ApJ
title: Biliary complications of liver transplant in pediatric patients: a pictorial essay of percutaneous transhepatic cholangiography (PTC) findings
Creators: name: Dulcetta, Ludovico
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Grafts
subject: Cholangiography
subject: Percutaneous
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Liver transplantation (LT) is the standard of care for pediatric patients with end-stage liver disease and liver-based metabolic disorders, either acute or chronic [1]. Complications of the biliary tract remain a common source of morbidity and...
The ALMaQUEST Survey: II. What drives central starbursts at z~0?
Creators: name: Ellison, Sara L.
name: Thorp, Mallory D.
name: Pan, Hsi-An
name: Lin, Lihwai
name: Scudder, Jillian M.
name: Bluck, Asa F. L.
name: Sanchez, Sebastian F.
name: Sargent, Mark
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Starburst galaxies have elevated star formation rates (SFRs) for their stellar mass. In Ellison et al. (2018) we used integral field unit (IFU) maps of star formation rate surface density (Sigma_SFR) and stellar mass surface density (Sigma_*) to show that starburst galaxies in the local universe are driven by SFRs that are preferentially boosted in their central regions. Here, we present molecular gas maps obtained with the Atacama Large Millimeter Array (ALMA) observatory for 12 central starburst galaxies at z~0 drawn from the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey. The ALMA and MaNGA data are well matched in spatial resolution, such that the ALMA maps of molecular gas surface density (Sigma_H2) can be directly compared with MaNGA maps at kpc-scale resolution. The combination of Sigma_H2, Sigma_* and Sigma_SFR at the same resolution allow us to investigate whether central starbursts are driven primarily by enhancements in star formation efficiency (SFE) or by increased gas fractions. By computing offsets from the resolved Kennicutt-Schmidt relation (Sigma_H2 vs. Sigma_SFR) and the molecular gas main sequence (Sigma_* vs. Sigma_H2), we conclude that the primary driver of the central starburst is an elevated SFE. We also show that the enhancement in Sigma_SFR is accompanied by a dilution in O/H, consistent with a triggering that is induced by metal poor gas inflow. These observational signatures are found in both undisturbed (9/12 galaxies in our sample) and recently merged galaxies, indicating that both interactions and secular mechanisms contribute to central starbursts.
description: Accepted for publication in MNRAS
Evaluation of exposure to parabens in Iranian women and its association with personal care products using behavior
Creators: name: Yaghoub Hajizadeh
name: Ghasem Kiani Feizabadi
name: Awat Feizi
name: Ebrahimpour, Karim
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Parabens are widely used in personal care products (PCPs) as antimicrobial factors due to their biocide property. These compounds have estrogenic activities and act as endocrine disruptors against biological systems. This study aimed to measure the urinary concentration of methylparaben (MP), ethylparaben (EP), propylparaben (PP), and butylparaben (BP), and to evaluate their association with the application of 19 PCPs among Iranian women. Parabens' detection frequency was 86–100%, and their median concentration was 8.53–93.4 μg/L, representing wide exposure of participants to parabens. The highest daily intake (DI) was related to MP (median = 13.4 μg/kg-BW/day); however, it was lower than the acceptable daily intake (ADI). The difference in the level of parabens between three groups of PCPs users (low, moderate, and high) was significant (P
CLaMS simulations of aerosol transport from the Asian monsoon anticyclone into the extratropical UTLS
Creators: name: Tritscher, Ines
name: Vogel, Bärbel
name: Müller, Rolf
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: EGU General Assembly 2023, Wien, Austria, 23 Apr 2024 - 28 Apr 2024
description: The Asian Tropopause Aerosol Layer (ATAL) in the Northern Hemisphere during summer was first discovered in satellite observation of aerosol particles in the Upper Troposphere / Lower Stratosphere (UTLS) by Vernier et al. (2011; 2015). It is related to the Asian monsoon anticyclonic circulation at UTLS altitudes. Motivated by the current lack of detailed understanding of the origin of ATAL particles and the transport of aerosols from the Asian monsoon anticyclone into the extratropical UTLS, we propose a model study based on simulations with the three-dimensional chemical transport model CLaMS. Simulations will be performed for the Asian summer monsoon 2017. In the framework of the StratoClim project, an aircraft measurement campaign was conducted in Kathmandu (Nepal) in summer 2017. A variety of trace gases and aerosol characteristics have been measured for the first time in the Asian monsoon anticyclone up to 20 km altitude. By using artificial tracers of air mass origin (Vogel et al., 2015; 2016; 2019), we plan to analyze the transport of aerosol particles into the extratropical UTLS with the help of the new ERA-5 reanalysis data from ECMWF.
title: MRI of anatomical variations of knee ligaments: pictorial review
Creators: name: HABI, Jihane
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Education and training
subject: Diagnostic procedure
subject: MR
subject: Musculoskeletal joint

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Describe and illustrate the different ligaments anatomical variations of knee. Clarify pathological diagnoses of confusion with anatomical...
title: Videofluoroscopy swallowing study in patients with dysphagia after chemio-radiotherapy for locally advanced neck cancer
Creators: name: Doratiotto, Stefano
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Swallowing disorders
subject: Multidisciplinary cancer care
subject: Cancer
subject: Dynamic swallowing studies
subject: Fluoroscopy
subject: Head and neck
subject: Gastrointestinal tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Concurrent chemio-radiotherapy (CRT) is a widely accepted treatment modality in locally advanced neck cancer (NC) permitting organ preservation. However, after CRT, patients with HNC frequently experience deterioration in swallowing function, as a...
Reentrant behavior of the phase stiffness in Josephson junction arrays
Creators: name: Capriotti, Luca
name: Cuccoli, Alessandro
name: Fubini, Andrea
name: Tognetti, Valerio
name: Vaia, Ruggero
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The phase diagram of a 2D Josephson junction array with large substrate resistance, described by a quantum XY model, is studied by means of Fourier path-integral Monte Carlo. A genuine Berezinskii-Kosterlitz-Thouless transition is found up to a threshold value g* of the quantum coupling, beyond which no phase coherence is established. Slightly below g* the phase stiffness shows a reentrant behavior with temperature, in connection with a low-temperature disappearance of the superconducting phase, driven by strong nonlinear quantum fluctuations.
description: 4 pages, 7 figures, to appear in Phys.Rev.Lett
Evaluation of spatio-temporal variations in water quality and suitability of an ecologically critical urban river employing water quality index and multivariate statistical approaches: A study on Shitalakhya river, Bangladesh
Creators: name: Md. Humayun Kabir
name: Tanmoy Roy Tusher
name: Md. Saddam Hossain
name: Md. Sirajul Islam
name: Shammi, Rifat Shahid
name: Tapos Kormoker
name: Proshad, Ram
name: Maksudul Islam
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Science Policy

description: The aim of this study was to investigate the spatio-seasonal variations in water quality and suitability of the Shitalakhya river, an economically important and ecologically critical urban river in Bangladesh, along with associated influencing factors and possible sources of water pollution. Therefore, surface water samples were collected monthly from five sampling sites, and fourteen water quality parameters were evaluated. The results showed that some studied water quality parameters, e.g., temperature, TDS, TA, TH, NO2–, and NO3–, exceeded the maximum allowable limit, whereas statistically significant (p 05) variations were observed among pre-monsoon (February–May), monsoon (June–September), and post-monsoon (October–January) seasons. The values of water quality index (WQI) exhibited that the water quality was found to be very poor to unsuitable for drinking, fisheries, or aquatic environment. The principal component analysis (PCA) extracted two PCs explaining 91.092% of the total variance, which suggested that the variations in water quality are attributed mainly to point and nonpoint sources of contamination including municipal and industrial wastewater discharge, and agricultural runoff of inorganic fertilizers. The cluster analysis (CA) also showed relative spatial and seasonal variations in river water quality, indicating the influence of hydrological changes and pollution sources. The study revealed that the water of the Shitalakhya river is highly polluted and potentially hazardous for human uses, and thus more attention should be given to safeguard such an important urban river.
Spontaneous Freeze Out of Dark Matter From an Early Thermal Phase Transition
Creators: name: Heurtier, Lucien
name: Partouche, Herve
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a new paradigm for the thermal production of dark matter in the early universe, in which dark-matter particles acquire their mass and freeze out spontaneously from the thermal bath after a dark phase transition takes place. The decoupling arises because the dark-matter particles become suddenly non-relativistic and not because of any decay channel becoming kinematically close. We propose a minimal scenario in which a scalar and a fermionic dark-matter are in thermal equilibrium with the Standard-Model bath. We compute the finite temperature corrections to the scalar potential and identify a region of the parameter space where the fermionic dark-matter mass spontaneously jumps over the temperature when the dark phase transition happens. We explore the phenomenological implications of such a model in simple cases and show that the annihilation cross section of dark-matter particles has to be larger by more than one order of magnitude as compared to the usual constant-mass WIMP scenario in order to accomodate the correct relic abundance. We show that in the spontaneous freeze out regime a TeV-scale fermionic dark-matter that annihilates into leptons through s-wave processes can be accessible to detection in the near future.
description: 14 pages, 8 figures
Creation of Electron--Positron Wind in Gamma-Ray Bursts and Its Effect on the Early Afterglow Emission
Creators: name: Kumar, P.
name: Panaitescu, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate the creation of electron--positron pairs in Gamma-Ray Bursts (GRBs) resulting from the collision between scattered and outward moving gamma-ray photons. The number of pairs exceeds the number of ambient medium electrons encountered by the GRB ejecta up to ~ 10^{16} cm from the center of explosion. The shock resulting from the interaction of the ejecta with the pair-wind may brighten the afterglow synchrotron emission during the first few minutes. Even without this effect, the peak intensity of the optical afterglow increases with the density of the surrounding medium. Therefore, observations of the optical flux at early times constrain the density of the circumburst medium. If the electron and magnetic field energies behind the forward shock sweeping-up the pair-wind and the circumburst medium are as inferred from fits to the broadband afterglow emission at 0.5-100 days, then the current upper limits on the optical counterpart emission, set by the ROTSE and LOTIS experiments, indicate that the circumburst medium within 0.01 pc is less dense than 100 cm^{-3} or, if a wind, corresponds to a progenitor mass-loss to wind speed ratio below 10^{-6} M_sun/yr/(1000 km/s).
description: 9 pages, submitted to MNRAS in 2002
title: An Investigation into the Frequency Stability of Non-oven Controlled Crystal Oscillators
Creators: name: Brighty, Christopher Charles
Publisher: name: The Open University
Year: 1992

description: Temperature induced frequency deviation of quartz crystal oscillators can be reduced by tuning the oscillator to compensate for the thermal effects. A varactor tuned AT cut resonator is typically used to make a voltage controlled crystal oscillator. Compensation is then achieved by applying a "compensation voltage" to the varactor. The earliest compensation circuits comprised resistors and thermistors. Over the temperature range -40° C to +85°C resistive compensation circuits have achieved frequency stabilities of approximately + Ippm. Alternative analogue circuits have achieved frequency stability of < +0.5ppm. The research described in this thesis is an investigation of resistive networks in order to improve the levels of stability that can be achieved by this method of temperature compensation for crystal oscillators. The objective was to achieve a stability of < +0.5ppm over the temperature range -40°C to +85°C. Optimisation techniques have been employed to identify a new temperature compensation circuit. This new circuit uses an amplifier with temperature sensitive gain to modify thermistor characteristics and improve the compensation over the high part of the temperature range. Two forms of this circuit are presented. Computer simulation of this circuit has shown that it is capable of achieving frequency stability of < ±0.3ppm in an oscillator operating from a 4.5 V supply over the temperature range -40°C to +85°C .
title: Gynecological and obstetric causes of acute right iliac fossa pain: imaging approach and related imaging findings
Creators: name: Iacobellis, Francesca
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Obstetrics
subject: Inflammation
subject: Cancer
subject: Diagnostic procedure
subject: Ultrasound
subject: MR
subject: CT
subject: Emergency

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The objective of this educational poster is to discuss the differences in the imaging approach of right iliac fossa pain secondary to gynecological and obstetric causes between Itay, United Kingdom and United States as well as to review the relevant...
title: Four steps for rapid differential diagnosis of dentomaxillary pathologies
Creators: name: Milicevic, Mladen
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Education and training
subject: Computer Applications-Detection, diagnosis
subject: Cone beam CT
subject: Head and neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The aim of this presentation is to propose different diagnostical steps regarding the majority and the most frequent dentomaxillary lesions. The first step is lesional description, the second precise lesional topography, the third discuss a sex...
Exact Results for Conductivity of 2D Isotropic Heterophase Systems
Creators: name: Bulgadaev, S. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The duality relation for the effective conductivity sigma_{e} of 2D isotropic heterophase systems is used for obtaining the exact results for sigma_{e} at arbitrary number of phases N. The exact values of sigma_{e} correspond to the fixed points of the duality transformations. The new exact results for sigma_{e}, generalizing the well-known exact values of sigma_{e} for N = 2,3 at equal phase concentrations, are found. It is shown that for N > 3 there exist the whole hyperplanes in the space of phase concentrations, on which sigma_{e} takes constant values. These results are checked in the framework of various approximations for different random heterophase systems.
description: 12 pages, latex-2e, 2 figures, small corrections and reference are added
title: KnitKit: A flexible system for machine knitting of customizable textiles
Creators: name: Nader, Georges
name: Quek, Yu Han
name: Chia, Pei Zhi
name: Weeger, Oliver
name: Yeung, Sai-Kit
Publisher: name: ACM
Year: 2022

description: In this work, we introduce KnitKit, a flexible and customizable system for the computational design and production of functional, multi-material, and three-dimensional knitted textiles. Our system greatly simplifies the knitting of 3D objects with complex, varying patterns that use multiple yarns and stitch patterns by separating the high-level design specification in terms of geometry, stitch patterns, materials, or colors from the low-level, machine specific knitting instruction generation. Starting from a triangular 3D mesh and a 2D texture that specifies knitting patterns on top of the geometry, our system generates the required machine instructions in three major steps. First, the input is processed and the KnitNet data structure is generated. This graph structure serves as an abstract interface between the high-level geometric and knitting configuration and the low-level, machine-specific knitting instructions. Second, a graph rewriting procedure is applied on the KnitNet that produces a sequence of abstract machine actions. Finally, the low-level machine instructions are generated by adapting those abstract actions to a specific machine context. We showcase the potential of this computational approach by designing and fabricating a variety of objects with complex geometries, multiple yarns, and multiple stitch patterns.
Investigation of turbulent transport regimes in the tokamak edge by using two-fluid simulations
Creators: name: Giacomin, Maurizio
name: Ricci, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The results of flux-driven, two-fluid simulations in single-null configurations are used to investigate the processes determining the turbulent transport in the tokamak edge. Three turbulent transport regimes are identified: (i) a developed transport regime with turbulence driven by an interchange instability, which shares a number of features with the standard L-mode of tokamak operation, (ii) a suppressed transport regime, characterized by a higher value of the energy confinement time, low-amplitude relative fluctuations driven by a Kelvin-Helmholtz instability, a strong E x B sheared flow, and the formation of a transport barrier, which recalls the H-mode, and (iii) a degraded confinement regime, characterized by a catastrophically large interchange-driven turbulent transport, which reminds the crossing of the Greenwald density limit.We derive an analytical expression of the pressure gradient length in the three regimes. The transition from the developed to the suppressed transport regime is obtained by increasing the heat source or decreasing the collisionality and vice versa for the transition from the developed transport regime to the degraded confinement regime. An analytical expression of the power threshold to access the suppressed transport regime, linked to the power threshold for H-mode access, as well as the maximum density achievable before entering the degraded confinement regime, related to the Greenwald density, are also derived. The experimental dependencies of the power threshold for H-mode access on density, tokamak major radius, and isotope mass are retrieved. The analytical estimate of the density limit contains the correct dependence on the plasma current and on the tokamak minor radius.
Proteomic characterization of the human lens and Cataractogenesis
Creators: name: Cantrell, Lee S
name: Schey, Kevin L
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: The goal of this review is to highlight the triumphs and frontiers in measurement of the lens proteome as it relates to onset of age-related nuclear cataract. As global life expectancy increases, so too does the frequency of age-related nuclear cataracts. Molecular therapeutics do not exist for delay or relief of cataract onset in humans. Since lens fiber cells are incapable of protein synthesis after initial maturation, age-related changes in proteome composition and post-translational modification accumulation can be measured with various techniques. Several of these modifications have been associated with cataract onset. We discuss the impact of long-lived proteins on the lens proteome and lens homeostasis as well as proteomic techniques that may be used to measure proteomes at various levels of proteomic specificity and spatial resolution. There is clear evidence that several proteome modifications are correlated with cataract formation. Past studies should be enhanced with cutting-edge, spatially resolved mass spectrometry techniques to enhance the specificity and sensitivity of modification detection as it relates to cataract formation.
title: Performance of low dose chest CT as a triage tool for suspected COVID-19 patients in Leuven, Belgium
Creators: name: Desmet, Jeroen
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Workforce
subject: Infection
subject: Efficacy studies
subject: Diagnostic procedure
subject: CT
subject: Thorax
subject: Emergency

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The diagnosis of coronavirus disease 2019 (COVID-19) pneumonia can be very challenging based on symptoms alone, because of great overlap with other conditions. In periods of a large influx of patients suspected of COVID-19 to the hospital, the need...
Observations of Protoplanetary Disk Structures
Creators: name: Andrews, Sean M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The disks that orbit young stars are the essential conduits and reservoirs of material for star and planet formation. Their structures, meaning the spatial variations of the disk physical conditions, reflect the underlying mechanisms that drive those formation processes. Observations of the solids and gas in these disks, particularly at high resolution, provide fundamental insights on their mass distributions, dynamical states, and evolutionary behaviors. Over the past decade, rapid developments in these areas have largely been driven by observations with the Atacama Large Millimeter/submillimeter Array (ALMA). This review highlights the state of observational research on disk structures, emphasizing three key conclusions that reflect the main branches of the field: (1) Relationships among disk structure properties are also linked to the masses, environments, and evolutionary states of their stellar hosts; (2) There is clear, qualitative evidence for the growth and migration of disk solids, although the implied evolutionary timescales suggest the classical assumption of a smooth gas disk is inappropriate; and (3) Small-scale substructures with a variety of morphologies, locations, scales, and amplitudes -- presumably tracing local gas pressure maxima -- broadly influence the physical and observational properties of disks. The last point especially is reshaping the field, with the recognition that these disk substructures likely trace active sites of planetesimal growth or are the hallmarks of planetary systems at their formation epoch.
description: invited review to be published in Annual Reviews of Astronomy and Astrophysics; 43 pages, 13 figures
Myofascial pain and dry needling for the trapezius muscle
Creators: name: Brown, Li-An Sarah
Publisher: name: The University of British Columbia
Year: 2018

description: Purpose: The purpose of this project is to first conduct an extensive review of recent literature on myofascial pain syndrome and trigger point dry needling, and the clinical evidence for the use of dry needling for myofascial pain in the trapezius muscle. Second, to write a manuscript for publication to disseminate the knowledge to nurse practitioners. Background: Musculoskeletal pain is a common complaint in the general medical clinic and can have large implications on quality of life. Myofascial pain can be difficult to diagnose and manage. Results: There are many different theories about the physiology behind myofascial pain and myofascial trigger points. These theories include peripheral and central sensitization components. Studies have shown that patients with myofascial pain have more inflammatory mediators and sensitizing substances present, and show changes in spontaneous electrical activity in end plate zones. There also are many theories on how dry needling physiologically addresses myofascial pain but no basic research has proven these theories recently that the author is aware of. Conclusion: Trigger point dry needling is a good therapeutic option for addressing and managing myofascial trigger points and myofascial pain in the trapezius muscle. Further research and replication of results is needed on this topic to strengthen the evidence supporting use of dry needling. Additionally, a clear, agreed upon, defined procedure for using needling will be needed to further study and promote it as a therapeutic option.
Interdigitation between surface-anchored polymer chains and an elastomer : consequences for adhesion promotion
Creators: name: Vilmin, Thomas
name: Tadivat, Caroline
name: Leger, Liliane
name: Brown, Hugh
name: Raphael, Elie
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the adhesion between a cross-linked elastomer and a flat solid surface where polymer chains have been end-grafted. To understand the adhesive feature of such a system, one has to study both the origin of the grafted layer interdigitation with the network, and the end-grafted chains extraction out of the elastomer when it comes unstuck from the solid surface. We shall tackle here the first aspect for which we develop a partial interdigitation model that lets us analytically predict a critical surface grafting density $σ^{*} \simeq P^{1/10}N^{-{3/5}}$ beyond which the layer no longer interdigitates with the elastomer. We then relate this result with recent adhesion measurements.
The Potential Impact of Heir Property on Timber Management in the Southeastern United States
Creators: name: Barlow, Becky
name: Bailey, Conner
name: Barlow, Becky
name: Bailey, Conner
Publisher: name: Unknown
Year: 2017
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: Forestry
subject: Timber Management
subject: Heir Property

description: Active timberland management maintains forest health and productivity, which in turn contributes to the sustainability of the resource and wealth of the landowner. However, when land is held as heir property, options for timberland management are often limited. Heir property is owned as an undivided interest among many heirs of an original owner, or multiple generations of owners, who died intestate. This is common among African American landowners in the South. As a result the title is considered “clouded,” limiting access to capital and resources that are beneficial to timberland management. In this paper, the authors hope to improve awareness of this issue by documenting potential obstacles that heir property owners may encounter including the inability to plan land management activities such as forest inventories, harvesting, and replanting. As a result, the health of the forest may suffer posing a threat to forest productivity and landowner wealth generation.
Random Spin Signal in Magnetic Resonance Force Microscopy
Creators: name: Berman, G. P.
name: Gorshkov, V. N.
name: Tsifrinovich, V. I.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study a random magnetic resonance force microscopy (MRFM) signal caused by the thermal vibrations of high frequency cantilever modes in the oscillating cantilever-driven adiabatic reversals (OSCAR) technique. We show that the regular MRFM signal with a characteristic decay time, $τ_m$, is followed by a non-dissipative random signal with a characteristic time $τ_r$. We present the estimates for the values of $τ_m$ and $τ_r$. We argue that this random MRFM signal can be used for spin detection. It has a ``signature'' of a sharp peak in its Fourier spectrum.
description: 15 pages
Magnonics and Supermagnonics
Creators: name: Bunkov, Yury
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The magnetic community continues to discuss the possibility to observe the magnetic superfluidity, despite the fact that it has been discovered long time ago. It was observed in antiferromagnetic states of superfluid $^3$He in 1984. In this article we reminds the main principles of spin superfluidity and related Bose-Einstain magnon condensation. We discuss applications of this phenomenon in supermagnonic devises.
description: 10 pages, 5 Figures. arXiv admin note: text overlap with arXiv:1810.08051
Asymmetric binary covering codes
Creators: name: Cooper, Joshua N.
name: Ellis, Robert B.
name: Kahng, Andrew B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 94B75

description: An asymmetric binary covering code of length n and radius R is a subset C of the n-cube Q_n such that every vector x in Q_n can be obtained from some vector c in C by changing at most R 1's of c to 0's, where R is as small as possible. K^+(n,R) is defined as the smallest size of such a code. We show K^+(n,R) is of order 2^n/n^R for constant R, using an asymmetric sphere-covering bound and probabilistic methods. We show K^+(n,n-R')=R'+1 for constant coradius R' iff n>=R'(R'+1)/2. These two results are extended to near-constant R and R', respectively. Various bounds on K^+ are given in terms of the total number of 0's or 1's in a minimal code. The dimension of a minimal asymmetric linear binary code ([n,R]^+ code) is determined to be min(0,n-R). We conclude by discussing open problems and techniques to compute explicit values for K^+, giving a table of best known bounds.
description: 16 pages
BreakBRD Galaxies I: Global Properties of Spiral Galaxies with Central Star Formation in Red Disks
Creators: name: Tuttle, Sarah E.
name: Tonnesen, Stephanie
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We introduce a collection of primarily centrally star-forming galaxies that are selected by disk color to have truncated disk star formation. We show that common explanations for centrally-concentrated star formation -- low stellar mass, bars, and high-density environments, do not universally apply to this sample. To gain insight into our sample, we compare these galaxies to a parent sample of strongly star-forming galaxies and to a parent sample of galaxies with low specific star formation rates. We find that in star formation and color space from ultraviolet to the infrared these galaxies either fall between the two samples or agree more closely with galaxies with high-specific star formation rates. Their morphological characteristics also lie between high- and low-specific star formation rate galaxies, although their Petrosian radii agree well with that of the low-specific star formation rate parent sample. We discuss whether this sample is likely to be quenching or showing an unusual star-formation distribution while continuing to grow through star formation. Future detailed studies of these galaxies will give us insights into how the local conditions within a galaxy balance environmental influence to govern the distribution of star formation. In this first paper in a series, we describe the global properties that identify this sample as separate from more average spiral galaxies, and identify paths forward to explore the underlying causes of their differences.
title: Small Bowel ischemia: can dual-energy CT fill the gap?
Creators: name: Quarta Colosso, Giulio
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Ischaemia / Infarction
subject: Education
subject: CT-Angiography
subject: Mesentery
subject: Emergency
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Depict dual-energy CT role in arterial bowel ischemia diagnosis. Illustrate the different dual-energy postprocessing techniques role in differential...
title: Application of DQE for quantitative assessment of detectors to estimate AEC efficiency in digital mammography
Creators: name: Skrzyński, Witold
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Quality assurance
subject: Technical aspects
subject: Physics
subject: Equipment
subject: Mammography
subject: Radioprotection / Radiation dose
subject: Radiation physics
subject: Computer applications

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Optimisation of the detector’s exposure parameters settings for image quality and the patient dose is an important task in digital mammography. Assessment of a digital detector’s performance can be done objectively and without operator bias by...
THE MYANMAR AQUACULTURE-AGRICULTURE SURVEY 2016
Creators: name: Belton, Ben
name: Payongayong, Ellen
name: Belton, Ben
name: Payongayong, Ellen
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Food Security and Poverty
subject: Aquaculture
subject: Agriculture
subject: Survey
subject: Myanmar

description: This research highlight is the first in a series of publications designed to summarize and rapidly disseminate key research findings generated by the Food Security Policy Project (FSP) in Myanmar1. FSP aims to promote inclusive agricultural growth by facilitating improvements in the policy environment. Addressing critical evidence gaps by generating and distributing new knowledge on agri-food value chains and the rural economy is central to this effort.
title: Impact of high-level iterative reconstructions in the coronary CT angiography of overweight patients
Creators: name: Testiccioli, Gianluca
Publisher: name: European Congress of Radiology
Year: 2021
Subjects: subject: Image verification
subject: Radiation safety
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: CT-Angiography
subject: Radioprotection / Radiation dose
subject: Cardiac

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Over the last twenty years, computed tomography (CT) has acquired a primary diagnostic role, complementing, and in some cases replacing, long-established diagnostic procedures such as conventional coronary angiography (CAG). The evolution of...