cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Orthogonally Aligned Dark Halo of an Edge-on Lensing Galaxy in the Hubble Frontier Fields: A Challenge for Modified Gravity
Creators: name: Diego, Jose M.
name: Broadhurst, Tom
name: Benitez, Narciso
name: Lim, Jeremy
name: Lam, Daniel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine a well resolved 8 arcsec lensed image that is symmetrically bent in the middle by an edge-on lenticular galaxy, in the Hubble Frontier Field (HFF) data of MACSJ0416.1-20403. The lengthy image is generated primarily by the large tangential shear of the cluster with a local secondary deflection by the member galaxy out to a limiting radius of about 18 kpc. The lensing lenticular galaxy is also well resolved and evidently lies nearly edge-on in projection. This fortuitous combination of a long arc intersecting an edge on galaxy provides us with an opportunity to place relatively strong constraints on the lensing effect of this galaxy. We can model the stellar lensing contribution using the observed pixels belonging to the galaxy, in 2D, and we add to this a standard parameterised dark halo component. Irrespective of the detailed choice of parameters we obtain a combined total mass of about 3E11 Msun. Depending on the dark halo parameters, the stellar contribution to this is limited to the range 5-15E10 Msun or 20-50 percent of the total mass, in good agreement with the independent stellar mass computed from the photometry of 5E10 Msun for a Chabrier IMF, or 8E10Msun for a Salpeter IMF. The major axis of the DM halo is constrained to be nearly orthogonal to the plane of the galaxy, within a range of about 15 degrees, and with an ellipticity e=015 corresponding to an axis ratio a/c=0.54. We show that these conclusions are very weakly dependent on the model of the cluster, or the additional influence of neighbouring galaxies or the properties of the lensed source. Alternative theories of gravity where the radial dependence is modified to avoid the need for DM are challenged by this finding since generically these must be tied to the baryonic component which here is a stellar disk oriented nearly orthogonally to the lensed image deflection.
description: 7 pages, 7 figures
title: Elder abuse - The unknown pathology
Creators: name: Mirón Mombiela, Rebeca
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Geriatrics
subject: Forensics
subject: Education and training
subject: Perception image
subject: History
subject: Education
subject: MR
subject: CT
subject: Conventional radiography
subject: Trauma
subject: Extremities
subject: eHealth

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: In Spain, adults aged over 65 years old comprise 18.4% of the total population [1]. Data that indicates a higher life expectancy, which added to the drop in birth rates results in an increase in older population [2]. This aging process causes a loss...
title: An Audit on 1,836 CT Colons in the Assessment of Diverticular Disease: A Proposal For A New Coding System As An Expansion of C-rads
Creators: name: Griffin, Emma
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Diverticula
subject: Staging
subject: Colon
subject: CT-Colonography

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Diverticulitis is a common cause of acute surgical admissions and results in considerable morbidity. It affects 5-10% of the population over 45 years of age and 80% over 85 years of age. The C-rads coding system is a well established tool for...
Bacteria fighting for their lives: the bacterial / pharmaceutical evolutionary race
Creators: name: El Khouly, Rachid
Publisher: name: figshare
Year: 2023
Subjects: Clinical pharmacy and pharmacy practice
Pharmaceutical delivery technologies
Pharmacology and pharmaceutical sciences not elsewhere classified
Pharmaceutical sciences

description: The growing frequency of antibiotic-resistant bacterial infections noticed in clinical practice derives from antibiotic usage within veterinary and human medicine. Antibiotics comprise a substantial set of molecules that could inhibit the growth of their target bacteria by interposing significant cellular processes. Antibiotics therapy is the essential treatment method for bacterial infections. However, the amount of effectual antibiotics is declining because of the increasing amount of antibiotics-resistant microbes. Therefore, it is vital that antibiotic invention and manufacturing are sustained to an extent that is proper to our growing requisites, and antibiotic resistance needs to be treated in the most effectual manners possible.
title: Intravenous urography: can we still learn from it?
Creators: name: Silva, Catarina
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Urinary Tract / Bladder
subject: Kidney
subject: Anatomy
subject: Fluoroscopy
subject: Conventional radiography
subject: Ultrasound
subject: Pyelography
subject: Contrast agent-intravenous
subject: Calcifications / Calculi
subject: Dilatation
subject: Congenital

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: -Briefly review the technique, advantages and limitations of intravenous urography (IVU) -Describe IVU findings of several urinary diseases highlighting the knowledge junior radiologists can still achieve from this procedure. -Provide a correlation...
title: Risk Preferences and Training Investments
Creators: name: Caliendo, Marco
name: Cobb-Clark, Deborah A.
name: Obst, Cosima
name: Uhlendorff, Arne
Publisher: name: Universität Potsdam
Year: 2020

description: We analyze workers’ risk preferences and training investments. Our conceptual framework differentiates between the investment risk and insurance mechanisms underpinning training decisions. Investment risk leads risk-averse workers to train less; they undertake more training if it insures them against future losses. We use the German Socio-Economic Panel (SOEP) to demonstrate that risk affinity is associated with more training, implying that, on average, investment risks dominate the insurance benefits of training. Crucially, this relationship is evident only for general training; there is no relationship between risk attitudes and specific training. Thus, as expected, risk preferences matter more when skills are transferable – and workers have a vested interest in training outcomes – than when they are not. Finally, we provide evidence that the insurance benefits of training are concentrated among workers with uncertain employment relationships or limited access to public insurance schemes.
title: Raising awareness about immune-related adverse events in immune-oncology: what should radiologists know?
Creators: name: MEKKI, AHMED
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Multidisciplinary cancer care
subject: Inflammation
subject: Education
subject: PET-CT
subject: MR
subject: CT
subject: Oncology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Exhaustive description of immune-related adverse events (IRAEs) on medical imagingreferenced at Gustave Roussy, the first European cancer center, and at Ambroise Paréuniversitary hospital, a french leading melanoma center. Imaging patterns by...
title: Occupational radiation exposure in chemoembolizations: Evaluation of doses in different body regions of professionals with different roles in the procedure
Creators: name: Machado, Cláudia
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Radioprotection / Radiation dose
subject: Interventional vascular
subject: Liver
subject: Fluoroscopy
subject: Chemoembolisation
subject: Dosimetric comparison
subject: Occupational / Environmental hazards
subject: Workforce

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Fluoroscopically guided interventional procedures are performed in great numbers in Europe and in the United States. The increasing use of ionizing radiation can be seen as simply the growing volume of work done or as the change of the procedures...
Accelerated Multiple Precision Matrix Multiplication using Strassen's Algorithm and Winograd's Variant
Creators: name: Kouya, Tomonori
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: G.1.3; G.1.0
subject: 15A09

description: The Strassen algorithm and Winograd's variant accelerate matrix multiplication by using fewer arithmetic operations than standard matrix multiplication. Although many papers have been published to accelerate single- as well as double-precision matrix multiplication by using these algorithms, no research to date has been undertaken to accelerate multiple precision matrix multiplication. In this paper, we propose a multiple precision matrix multiplication program for matrices of any size and test its performance. We also reveal special properties of our program through its application to LU decomposition.
description: JSIAM Letters (Accepted)
THE DEVELOPMENT OF A C. ELEGANS MODEL OF NICOTINE USE AND AVERSION RESISTANCE
Creators: name: Omura, Daniel Ellis
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 520202
subject: Behavioural neuroscience
classificationCode: 320999
subject: Neurosciences not elsewhere classified

description: A C. elegans model of nicotine use and aversion resistance following chronic low-dose nicotine pretreatment. Model was then applied to various receptor knockouts (acr-5, acr-15, acr-16, dop-1, and dop-2) to determine the role of these receptors in aversion resistance.
iHelp: Project Management Handbook
Creators: name: Rashid, Usman
name: Kyriazis, Dimosthenis
name: Meimetea, Stavroula
Publisher: name: Zenodo
Year: 2021
Subjects: Project Management Handbook
pancreatic cancer
iHelp

description: The purpose of this iHelp deliverable, D1.1 “Project Management Handbook”, is to act as a manual for all project procedures and communications. This document provides the foundation for the practical work in the project throughout its duration and will help ensure that the project partners will follow the same well-defined procedures and practices. Thus, this deliverable is an important and mandatory tool to ensure that the project is delivered on specification, on time, and on budget.
 The Handbook is based on the project procedures as defined within the iHelp Description of Action and Consortium Agreement and where necessary extends them in operational aspects. However, it is subservient to those documents.
 This handbook is delivered very early in project M3 to guide the forthcoming activities (e.g. project management, deliverable writing, meeting organisation etc) throughout the duration of the project. Of course, the nature of some activities may change during the lifetime of the project and therefore this Project Handbook should be seen as a “living document”, i.e., its content may be adapted through the project duration to reflect changes within the project management procedures.
“Grandma! Grandpa! Let`s play together!” – Effects of game mode in multiplayer video games on intergenerational social interaction: A randomized field study
Creators: name: Zahn, Carmen
name: Leisner, David
name: Niederhauser, Mario
name: Roos, Anna-Lena
name: Iseli, Tabea
name: Soldati, Marco
Publisher: name: My University
Year: 2022
Subjects: video games
computer games
elderly people
game mode
serious game
social interaction
video analysis methods

description: Maintaining social relationships is a basic human need and particularly essential in old age, including when living in a retirement home. Multiplayer video games can promote the establishment and maintenance of social relationships, due to facilitating positive social interactions between players, even from different generations. Such facilitation of positive social interactions depends, however, on specific game design. The present study investigates the impacts of three different game modes on social interaction in a controlled field trial. Results reveal significant differences. Important implications on game design and the use of computer games for seniors in practice are discussed.
Quasiperiodic acceleration of electrons by a plasmoid-driven shock in the solar atmosphere
Creators: name: Carley, Eoin P.
name: Long, David M.
name: Byrne, Jason P.
name: Zucca, Pietro
name: Bloomfield, D. Shaun
name: McCauley, Joseph
name: Gallagher, Peter T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Cosmic rays and solar energetic particles may be accelerated to relativistic energies by shock waves in astrophysical plasmas. On the Sun, shocks and particle acceleration are often associated with the eruption of magnetized plasmoids, called coronal mass ejections (CMEs). However, the physical relationship between CMEs and shock particle acceleration is not well understood. Here, we use extreme ultraviolet, radio and white-light imaging of a solar eruptive event on 22 September 2011 to show that a CME-induced shock (Alfvén Mach number 2.4$^{+0.7}_{-0.8}$) was coincident with a coronal wave and an intense metric radio burst generated by intermittent acceleration of electrons to kinetic energies of 2-46 keV (0.1-0.4 c). Our observations show that plasmoid-driven quasi-perpendicular shocks are capable of producing quasi-periodic acceleration of electrons, an effect consistent with a turbulent or rippled plasma shock surface.
title: The evaluation of patient`s radiation dose by the Committee of Radiation Protection
Creators: name: Zina, Ana
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Education and training
subject: Dosimetric comparison
subject: Health policy and practice
subject: Education
subject: Dosimetry
subject: Fluoroscopy
subject: Radioprotection / Radiation dose
subject: Radiographers
subject: Radiation physics

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Patient`s quantification radiation dose and the exposure time of the procedures are a growing concern for the users of ionizing radiation. In interventional radiology, good practice recommends the monitoring and dose registration in the clinical...
Prominence Formation and Oscillations
Creators: name: Chen, P. F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Prominences, or filaments, are a striking phenomenon in the solar atmosphere. Besides their own rich features and dynamics, they are related to many other activities, such as solar flares and coronal mass ejections (CMEs). In the past several years we have been investigating the prominence formation, oscillations, and eruptions through both data analysis and radiative hydrodynamic and magnetohydrodynamic (MHD) simulations. This paper reviews our progress on these topics, which includes: (1) With updated radiative cooling function, the coronal condensation becomes a little faster than previous work; (2) Once a seed condensation is formed, it can grow via siphon flow spontaneously even if the evaporation stops; (3) A scaling law was obtained to relate the length of the prominence thread to various parameters, indicating that higher prominences tend to have shorter threads, which is consistent with the fact that threads are long in active region prominences and short in quiescent prominences; (4) It was proposed that long-time prominence oscillations out of phase might serve as a precursor for prominence eruptions and CMEs; (5) An ensemble of oscillating prominence threads may explain the counter-streaming motion.
description: 10 pages, 6 figures, International Symposium on Solar Terrestrial Physics, Pune, India, 2012
Spectral age modelling of the `Sausage' cluster radio relic
Creators: name: Stroe, Andra
name: Harwood, Jeremy J.
name: Hardcastle, Martin J.
name: Röttgering, Huub J. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: CIZA J2242.8+5301 is a post-core passage, binary merging cluster that hosts a large, thin, arc-like radio relic, nicknamed the `Sausage', tracing a relatively strong shock front. We perform spatially-resolved spectral fitting to the available radio data for this radio relic, using a variety of spectral ageing models, with the aim of finding a consistent set of parameters for the shock and radio plasma. We determine an injection index of $0.77^{+0.03}_{-0.02}$ for the relic plasma, significantly steeper than was found before. Standard particle acceleration at the shock front implies a Mach number $M=2.90^{+0.10}_{-0.13}$, which now matches X-ray measurements. The shock advance speed is $v_\mathrm{shock}\approx2500$ km s$^{-1}$, which places the core passage of the two subclusters $0.6-0.8$ Gyr ago. We find a systematic spectral age increase from $0$ at the northern side of the relic up to $\sim60$ Myr at $\sim145$ kpc into the downstream area, assuming a $0.6$ nT magnetic field. Under the assumption of freely-ageing electrons after acceleration by the `Sausage' shock, the spectral ages are hard to reconcile with the shock speed derived from X-ray and radio observations. Re-acceleration or unusually efficient transport of particle in the downstream area and line-of-sight mixing could help explain the systematically low spectral ages.
description: Accepted for publication in MNRAS. 10 pages, 6 figures, 2 tables
Fide, sed cui, vide. Wie “wahr” kann Geschichte sein?
Creators: name: Barricelli, Michele
Publisher: name: M. Barricelli, Fide, sed cui, vide. Wie “wahr” kann Geschichte sein?, «Public history weekly», 2, 2014, n. 8
Year: 2014

description: Glaubwürdigkeit ist ein neues boomendes Forschungsfeld der Kultur- und Sozialwissenschaften. Auch beim historischen Lernen, sei es in Schule, Akademie oder vor dem Monitor, geht am Ende immer nur darum, auf gute Argumente oder Urteile, die besser Wissende fällen, zu vertrauen. Denn jede fachliche (Nach-)Prüfung bleibt hier notgedrungen unvollkommen, und irgendwann müssen wir schließlich mit dem Deuten aufhören, um mit dem Handeln anzufangen. Doch zum rechten Glauben darf niemand gezwungen werden.
title: The role of diffusion imaging in the diagnosis of testicular neoplasms
Creators: name: MANAVI, EKATERINI
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Oncology
subject: Genital / Reproductive system male
subject: MR-Diffusion/Perfusion
subject: Diagnostic procedure
subject: Cancer
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Testicular neoplasms are the most common tumours in young males, with the majority of cases occurring in ages between 15 and 35 [1]. 95% of testicular tumours are germ-cell neoplasms, while 5% are sex cord stromal tumours and non-primary...
A Census of Gas Outflows in Type 2 Active Galactic Nuclei
Creators: name: Bae, Hyun-Jin
name: Woo, Jong-Hak
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We perform a census of ionized gas outflows using a sample of ~23,000 type 2 active galactic nuclei (AGNs) out to z~0.1. By measuring the velocity offset of narrow emission lines, i.e., [O III] λ5007 and Hα, with respect to the systemic velocity measured from the stellar absorption lines, we find that 47% of AGNs display an [O III] line-of-sight velocity offset $\geq$ 20 km/s. The fraction of the [O III] velocity offset in type 2 AGNs is comparable to that in type 1 AGNs after considering the projection effect. AGNs with a large [O III] velocity offset preferentially have a high Eddington ratio, implying that the detected velocity offsets are related to black hole activity. The distribution of the host galaxy inclination is clearly different between the AGNs with blueshifted [O III] and the AGNs with redshifted [O III], supporting the combined model of the biconical outflow and dust obscuration. In addition, for ~3% of AGNs, [O III] and Hα show comparable large velocity offsets, indicating a more complex gas kinematics than decelerating outflows in a stratified narrow-line region.
description: 12 pages, 10 figures; Accepted to ApJ
Renormalization of QED near Decoupling Temperature
Creators: name: Masood, Samina S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effective parameters of QED near decoupling temperatures and show that the QED perturbative series is convergent, at temperatures below the decoupling temperature. The renormalization constant of QED acquires different values if a system cools down from a hotter system to the electron mass temperature or heats up from a cooler system to the same temperature. At T = m, the first order contribution to the electron selfmass, δm/m is 0.0076 for a heating system and 0.0115 for a cooling system and the difference between two values is equal to 1/3 of the low temperature value and 1/2 of the high temperature value around T~m. This difference is a measure of hot fermion background at high temperatures. With the increase in release of more fermions at hotter temperatures, the fermion background contribution dominates and weak interactions have to be incorporated to understand the background effects.
description: 3 Figures and 1 Table, Physics Research International, Volume 2014, ID 489163. arXiv admin note: substantial text overlap with arXiv:1205.2937
title: Use of a preparatory micro-enema to reduce gas-induced artefacts on diffusion-weighted MRI (DWI) of the rectum: patient burden and practical considerations
Creators: name: van der Lubbe, Megan
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Ethics
subject: Diagnostic procedure
subject: MR
subject: Oncology
subject: Gastrointestinal tract
subject: Abdomen
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: At our institution, patients with a rectum carcinoma who have undergone a complete response after chemoradiotherapy may be treated with a wait-and-see approach instead of surgical resection. With a wait-and-see approach no surgery will be performed...
Determination of intrinsic spin Hall angle in Pt
Creators: name: Wang, Yi
name: Deorani, Praveen
name: Qiu, Xuepeng
name: Kwon, Jae Hyun
name: Yang, Hyunsoo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin Hall angle in Pt is evaluated in Pt/NiFe bilayers by spin torque ferromagnetic resonance (ST-FMR) measurements, and is found to increase with increasing the NiFe thickness. To extract the intrinsic spin Hall angle in Pt by estimating the total spin current injected into NiFe from Pt, the NiFe thickness dependent measurements are performed and the spin diffusion in the NiFe layer is taken into account. The intrinsic spin Hall angle of Pt is determined to be 0.068 at room temperature, and is found to be almost constant in the temperature range 13 - 300 K.
Detection of Nuclear Sources in Search Applications using Dynamic Quantum Clustering of Spectral Data
Creators: name: Weinstein, Marvin
name: Heifetz, Alexander
name: Klann, Raymond
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In a search scenario, nuclear background spectra are continuously measured in short acquisition intervals with a mobile detector-spectrometer. Detecting sources from measured data is difficult because of low signal to noise ratio (S/N) of spectra, large and highly varying background due to naturally occurring radioactive material (NORM), and line broadening due to limited spectral resolution of nuclear detector. We have invented a method for detection of sources using clustering of spectral data. Our method takes advantage of the physical fact that a source not only produces counts in the region of its spectral emission, but also has the effect on the entire detector spectrum via Compton continuum. This allows characterizing the low S/N spectrum without distinct isotopic lines using multiple data features. We have shown that noisy spectra with low S/N can be grouped by overall spectral shape similarity using a data clustering technique called Dynamic Quantum Clustering (DQC). The spectra in the same cluster can then be averaged to enhance S/N of the isotopic spectral line. This would allow for increased accuracy of isotopic identification and lower false alarm rate. Our method was validated in a proof-of principle study using a data set of spectra measured in one-second intervals with Sodium Iodide detector. The data set consisted of over 7000 spectra obtained in urban background measurements, and approximately 70 measurements of Cs-137 and Co-60 sources. Using DQC analysis, we have observed that all spectra containing Cs-137 and Co-60 signal cluster away from the background.
description: 16 pages, 9 figures
Minor vs Major Mergers: The Stellar Mass Growth of Massive Galaxies from z=3 using Number Density Selection Techniques
Creators: name: Ownsworth, Jamie R.
name: Conselice, Christopher J.
name: Mortlock, Alice
name: Hartley, William G.
name: Almaini, Omar
name: Duncan, Ken
name: Mundy, Carl J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study on the stellar mass growth of the progenitors of local massive galaxies with a variety of number density selections with $n\le1\times10^{-4}\,\rm{Mpc^{-3}}$ (corresponding to $M_*=10^{11.24}\rm{M_{\odot}}$ at z=0.3) in the redshift range $0.3
description: Accepted for publication in MNRAS. 18 pages, 14 figures
title: Wrist Injuries in Elderly Women - What We Miss on Diagnostic X-rays in Comparison to MRI
Creators: name: Wrange, Erik
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Osteoporosis
subject: Acute
subject: Outcomes analysis
subject: MR
subject: Conventional radiography
subject: Trauma
subject: Musculoskeletal bone
subject: Extremities

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Wrist injuries are common among elderly women and the correct diagnosis is important, not only for sufficient treatment of a bone fracture, but also as an early indicator of osteoporosis [1] .The lifetime risk in woman of an osteoporotic fracture is...
title: The role of contrast-enhanced computed tomography to detect renal stones
Creators: name: Odenrick, Alice
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Kidney
subject: Abdomen
subject: Contrast agents
subject: CT
subject: Contrast agent-intravenous
subject: Calcifications / Calculi

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Nephrolithiasis is a common disorderwith a reported incidence of 12% in industrialized countries [1] and is globally increasing [2]. Colicky flank pain is the most common presenting symptom of obstructive urolithiasis [2]. Previous studies have...
Thermopower analysis of the electronic structure around metal-insulator transition in V1-xWxO2
Creators: name: Katase, Takayoshi
name: Endo, Kenji
name: Ohta, Hiromichi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electronic structure across the metal-insulator (MI) transition of electron-doped V1-xWxO2 epitaxial films (x = 0-0.06) grown on alfa-Al2O3 substrates was studied by means of thermopower (S) measurements. Significant increase of |S|-values accompanied by MI transition was observed, and the transition temperatures of S (TS) decreased with x in good linear relation with MI transition temperatures. |S| values of V1-xWxO2 films at T > TS were constant at low values of 23 microV K-1 independently of x, which reflects a metallic electronic structure, whereas, those at T < TS almost linearly decreased with logarithmic W-concentrations. The gradient of -213 microV K-1 agrees well with -kB/e*ln10 (-198 microV K-1), suggesting that V1-xWxO2 films have insulating electronic structures with a parabolic density of state around the conduction band bottom.
description: Accepted for publication as a Rapid Commun. in Phys. Rev. B
title: The impact of preoperative breast MRI on breast-conserving surgery of ductal carcinoma in situ
Creators: name: BALLANO FRANCO, CARLOS
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Technical aspects
subject: Surgery
subject: MR
subject: Mammography
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To assess the impact of pre-operative breast MRI on surgical planning in patients with biopsy-proven ductal carcinoma in situ...
title: Dual-bivalve proxy analysis of shellfish harvest intensity, and palaeotemperture in Powell River, British Columbia
Creators: name: Kuehn, Sarah
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: This thesis investigated the seasonality and intensity of shellfish harvesting and past sea surface temperature in Powell River, British Columbia, in the traditional territory of the Tla’amin First Nation. This is the first study to use two species of bivalve Saxidomus gigantea and Leukoma staminea as proxies for past cultural practices and environment. This is also the first study to use high-resolution stable oxygen isotope sclerochronological analysis for interpreting past subsistence and settlement patterns in the Powell River region. Seven archaeological shell midden sites were examined to interpret shellfish harvest intensity using sclerochronological measurements of 644 shells from seven shell middens. The results showed that overall, there a consistent, and intense pattern of shellfish harvesting for both species. The only notable site-level difference is at the village site DlSd-11, where the S. gigantea shells examined showed a higher relative harvest intensity whereas the L. staminea shells showed a lower relative harvest intensity. High-resolution stable oxygen isotope sclerochronological analysis was used to examine three live-collected L. staminea shells from the Sechelt Inlet in Sechelt, British Columbia. The results showed that the species L. staminea can be used to interpret the season of capture, although palaeotemperature calculations are affected by changes in salinity. The calculated temperature of the live-collected L. staminea shells had a range of 5.1-18.9℃ whereas the measured temperature was 5.7-20.4℃. Five S. gigantea and five L. staminea shells from the defensive lookout site DlSd-1 in Powell River, British Columbia were analyzed for seasonality. The results showed a difference between species for the interpreted season of collection. All five of the S. gigantea were collected during the spring. Two of the L. staminea shells indicated collection in the spring, one shell indicated either spring or summer collection, one shell indicated summer collection, and the last shell indicated an autumn or winter collection. The combination of ẟ18Oshell data, with other lines of archaeological evidence, and ethnohistorical records indicate that the site was inhabited during the spring and likely used throughout the year by the ancestral Tla’amin. The dual proxy analysis showed that the use of two provides insight into the overall history of shellfish harvesting. In this case, the use of two species shifts the interpretation from a single season of site use to year-round by looking at both species of bivalves. Further, the growth increment analysis affirmed a consistent pattern of intensive shellfish harvest in this region.
New insights on the recoiling/binary black hole candidate J0927+2943 via molecular gas observations
Creators: name: Decarli, Roberto
name: Dotti, Massimo
name: Mazzucchelli, Chiara
name: Montuori, Carmen
name: Volonteri, Marta
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The peculiar QSO J0927+2943 shows multiple sets of emission lines in its optical spectrum. This signature has been interpreted as the relative motion between a black hole, either recoiling or bound in a binary system, and its host galaxy, or as a superposition of two galaxies along the line of sight. In order to test these scenarios, we have collected 2mm CO(2-1) observations using the IRAM Plateau de Bure Interferometer, and optical images and spectroscopy at the Calar Alto observatory. Together with archival HST images, these data provide unique insights on the nature of this system. The recoiling/binary black hole scenarios are ruled out by the clear detection of a galactic-scale molecular gas reservoir at the same redshift of the QSO broad lines. The observations presented here also disfavour the superposition model, although with less constraints. Thus, the origin of the second, bright set of narrow emission lines in J0927+2943 is still unknown.
description: 10 pages, 9 figures. Accepted for publication in MNRAS
title: RECIST-measurements in oncology by radiographers – can we reshuffle tasks of radiologists?
Creators: name: Molenaar, Lyanne
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Staging
subject: CT
subject: Oncology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To measure response to cancer treatment RECIST (Response Evaluation Criteria in Solid Tumours) is most widely used in clinical practice, particularly in the scope of clinical trials. The RECIST system classifies the response into a complete or...
title: Objectivity, reasoning and interdisciplinary: making the links
Creators: name: McNulty, Lisa
Publisher: name: University of Kent
Year: 2022

description: Both the production of knowledge and the product, knowledge itself, are social phenomena. This generally accepted fact is generally thought to require relativism, scepticism, and Kuhnian incommensurability, as well as casting serious doubt on the potential of our cognitive traditions to provide us with objective knowledge about an objective world. This thesis exposes and critiques the presuppositions about the nature of reasoning and objectivity which underlie these fears. Combining a Nietzschean, perspectivist account of objectivity with a conception of reasoning drawn from Lockean epistemology and pedagogy, I build a new account of cognitive optimality, dubbed 'Linkmaking'. The phrase deliberately encompasses several meanings. We 'make links' by noticing connections between objects in the world, by linking ideas together to form a theory or a curriculum; by forming social connections, and by developing interdisciplinary practices. I defend the view that we cannot fully address any of these kinds of Link without reference to all of the others. I further show that out best means to critically assess our cognitive groups is to evaluate the extent to which those groups encourage Linkmaking practices. The major potential challenge to Linkmaking is Kuhnian incommensurability. Having demonstrated the flaws inherent in Kuhn's account, this thesis defends the weaker, Doppeltian form of incommensurability, which grants us insight into the genuine problems which can occur in interdisciplinary research. We then see that the Strong Programme in the sociology of knowledge, inspired by the strong, relativistic version of the Kuhnian incommensurability thesis, has held sway among sociologists because they do not generally study interdisciplinary practices, which highlight scientists' (perspectivist) objectivity. Furthermore, social scientists who accept Kuhnian constructivism doubt their own potential for objectivity, presuming the presence of strong incommensurability where there is none. Undertaking Linkmaking practices both cures this illusion, and improves the cognitive optimality of the group.
Approaching the Limits of Transparency and Conductivity in Graphitic Materials through Lithium Intercalation
Creators: name: Bao, Wenzhong
name: Wan, Jiayu
name: Han, Xiaogang
name: Cai, Xinghan
name: Zhu, Hongli
name: Kim, Dohun
name: Ma, Dakang
name: Xu, Yunlu
name: Munday, Jeremy
name: Drew, H. Dennis
name: Fuhrer, Michael S.
name: Hu, Liangbing
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Various bandstructure engineering methods have been studied to improve the performance of graphitic transparent conductors; however none demonstrated an increase of optical transmittance in the visible range. Here we measure in situ optical transmittance spectra and electrical transport properties of ultrathin-graphite (3-60 graphene layers) simultaneously via electrochemical lithiation/delithiation. Upon intercalation we observe an increase of both optical transmittance (up to twofold) and electrical conductivity (up to two orders of magnitude), strikingly different from other materials. Transmission as high as 91.7% with a sheet resistance of 3.0 Ω per square is achieved for 19-layer LiC6, which corresponds to a figure of merit σ_dc/σ_opt = 1400, significantly higher than any other continuous transparent electrodes. The unconventional modification of ultrathin-graphite optoelectronic properties is explained by the suppression of interband optical transitions and a small intraband Drude conductivity near the interband edge. Our techniques enable the investigation of other aspects of intercalation in nanostructures.
description: Published 01 July 2014 in Nature Communications
On the Casimir Energy of Frequency Dependent Interactions
Creators: name: Graham, N.
name: Quandt, M.
name: Weigel, H.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Vacuum polarization (or Casimir) energies can be straightforwardly computed from scattering data for static field configurations whose interactions with the fluctuating field are frequency independent. In effective theories, however,such interactions are typically frequency dependent. As a consequence, the relationship between scattering data and the Green's function is modified, which may or may not induce additional contributions to the vacuum polarization energy. We discuss several examples that naturally include frequency dependent interactions: (i) scalar electrodynamics with a static background potential, (ii) an effective theory that emerges from integrating out a heavy degree of freedom, and (iii) quantum electrodynamics coupled to a frequency dependent dielectric material. In the latter case, we argue that introducing dissipation as required by the Kramers-Kronig relations requires the consideration of the Casimir energy within a statistical mechanics formalism, while in the absence of dissipation we can work entirely within field theory, using an alternative formulation of the energy density.
description: 19 pages, 2 figures, 2 tables
Fidelity Checklist Templates: Using PT via Teleconferencing
Creators: name: Kapoor, Geetika
name: Vostanis, Athanasios
name: Mejía-Buenaño, Suzy
name: Langdon, Peter E
Publisher: name: figshare
Year: 2023
Subjects: Education assessment and evaluation

description: These are the templates of the fidelity checklists used in our study.
title: Actual paediatric radiation doses in Latvia in the context of dose reference levels (DRLs) in Europe
Creators: name: Baduna, Monta
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Radioprotection / Radiation dose
subject: Radiation physics
subject: Paediatric
subject: Digital radiography
subject: Radiation safety
subject: Statistics
subject: FOS: Mathematics
subject: Dosimetric comparison
subject: Quality assurance

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Dose optimization has a significant role in paediatric X-ray examination, but only a few European countries have national diagnostic reference levels (DRLs) where they have based them on their own patient dose surveys. [1] Children are more...
On the adiabatic walking of plasma waves in a pulsar magnetosphere
Creators: name: Melikidze, George I.
name: Mitra, Dipanjan
name: Gil, Janusz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The pulsar radio emission is generated in the near magnetosphere of the neutron star and it has to propagate through the rest of it to emerge into the interstellar medium. An important issue is whether this propagation affects the planes of polarization of the generated radiation. Observationally, there is a sufficient evidence that the emerging radiation is polarized parallel or perpendicular to the magnetic field line planes that should be associated with the ordinary O and extraordinary X plasma modes respectively, excited by some radiative process. This strongly suggests that the excited X- and O-modes are not affected by the so-called Adiabatic Walking that causes a slow rotation of polarization vectors. In this paper we demonstrate that the conditions for the Adiabatic Walking are not fulfilled within the soliton model of pulsar radio emission, in which the coherent curvature radiation occurs at frequencies much lower than the characteristic plasma frequency. The X-mode propagates freely and observationally represents the primary polarization mode. The O-mode has difficulties in escaping from the pulsar plasma, nonetheless it is sporadically observed as a weaker secondary polarization mode. We discuss a possible scenario under which the O-mode can also escape from the plasma and reach an observer.
description: Accepted to ApJ
Spectrum-inspired Low-light Image Translation for Saliency Detection
Creators: name: Varghese, Kitty
name: Rajagopalan, Sudarshan
name: Lamba, Mohit
name: Mitra, Kaushik
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Saliency detection methods are central to several real-world applications such as robot navigation and satellite imagery. However, the performance of existing methods deteriorate under low-light conditions because training datasets mostly comprise of well-lit images. One possible solution is to collect a new dataset for low-light conditions. This involves pixel-level annotations, which is not only tedious and time-consuming but also infeasible if a huge training corpus is required. We propose a technique that performs classical band-pass filtering in the Fourier space to transform well-lit images to low-light images and use them as a proxy for real low-light images. Unlike popular deep learning approaches which require learning thousands of parameters and enormous amounts of training data, the proposed transformation is fast and simple and easy to extend to other tasks such as low-light depth estimation. Our experiments show that the state-of-the-art saliency detection and depth estimation networks trained on our proxy low-light images perform significantly better on real low-light images than networks trained using existing strategies.
description: Presented at The Indian Conference on Computer Vision, Graphics and Image Processing (ICVGIP) 2022
title: Acoustic Radiation Force Impulse Technology in the Differential Diagnosis of Solid Breast Masses with different sizes.
Creators: name: Gkali, Christina
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Biopsy
subject: Elastography
subject: Breast
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of our Scientific Exhibit is: 1)to present the basic principles of both types of Acoustic Radiation Force Impulse Imaging technology: Virtual Touch Tisuue Imaging (VTI) and Virtual Touch Tissue Quantification (VTQ) 2)to evaluate the...
Spin reorientation in Na-doped BaFe$_2$As$_2$ studied by neutron diffraction
Creators: name: Wasser, F.
name: Schneidewind, A.
name: Sidis, Y.
name: Aswartham, S.
name: Wurmehl, S.
name: Buchner, B.
name: Braden, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have studied the magnetic ordering in Na doped BaFe$_2$As$_2$ by unpolarized and polarized neutron diffraction using single crystals. Unlike previously studied FeAs-based compounds that magnetically order, Ba$_{1-x}$Na$_x$Fe$_2$As$_2$ exhibits two successive magnetic transitions: For x=0.35 upon cooling magnetic order occurs at $\sim$70\ K with in-plane magnetic moments being arranged as in pure or Ni, Co and K-doped BaFe$_2$As$_2$ samples. At a temperature of $\sim$46\ K a second phase transition occurs, which the single-crystal neutron diffraction experiments can unambiguously identify as a spin reorientation. At low temperatures, the ordered magnetic moments in Ba$_{0.65}$Na$_{0.35}$Fe$_2$As$_2$ point along the $c$ direction. Magnetic correlations in these materials cannot be considered as Ising like, and spin-orbit coupling must be included in a quantitative theory.
description: 5 pages, 4 figures