cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Active multitask learning with uncertainty‐weighted loss for coronary calcium scoring
Creators: name: Föllmer, Bernhard
name: Biavati, Federico
name: Wald, Christian
name: Stober, Sebastian
name: Ma, Jackie
name: Dewey, Marc
name: Samek, Wojciech
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: coronary artery calcium scoring
subject: deep learning
subject: neural networks
subject: active multitask learning
subject: uncertainty-weighted loss
classificationCode: 610
subject: Medizin und Gesundheit

description: Purpose The coronary artery calcification (CAC) score is an independent marker for the risk of cardiovascular events. Automatic methods for quantifying CAC could reduce workload and assist radiologists in clinical decision-making. However, large annotated datasets are needed for training to achieve very good model performance, which is an expensive process and requires expert knowledge. The number of training data required can be reduced in an active learning scenario, which requires only the most informative samples to be labeled. Multitask learning techniques can improve model performance by joint learning of multiple related tasks and extraction of shared informative features. Methods We propose an uncertainty-weighted multitask learning model for coronary calcium scoring in electrocardiogram-gated (ECG-gated), noncontrast-enhanced cardiac calcium scoring CT. The model was trained to solve the two tasks of coronary artery region segmentation (weak labels) and coronary artery calcification segmentation (strong labels) simultaneously in an active learning scenario to improve model performance and reduce the number of samples needed for training. We compared our model with a single-task U-Net and a sequential-task model as well as other state-of-the-art methods. The model was evaluated on 1275 individual patients in three different datasets (DISCHARGE, CADMAN, orCaScore), and the relationship between model performance and various influencing factors (image noise, metal artifacts, motion artifacts, image quality) was analyzed. Results Joint learning of multiclass coronary artery region segmentation and binary coronary calcium segmentation improved calcium scoring performance. Since shared information can be learned from both tasks for complementary purposes, the model reached optimal performance with only 12% of the training data and one-third of the labeling time in an active learning scenario. We identified image noise as one of the most important factors influencing model performance along with anatomical abnormalities and metal artifacts. Conclusions Our multitask learning approach with uncertainty-weighted loss improves calcium scoring performance by joint learning of shared features and reduces labeling costs when trained in an active learning scenario.
Городищенський скарб з Волині
Creators: name: М. М., Кучинко
name: Орлов, Руслан
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 430101
subject: Archaeological science

description: Кучінко М.М., Орлов Р.С. Городищенський скарб з Волині — Археологія. - 1989. - №2. - С.96-107.Gorodishchensky belongings from Volyn
title: 18F-FET PET in the diagnosis and prognostication of primary brain tumours
Creators: name: Gajera, Jay
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Molecular imaging
subject: Nuclear medicine conventional
subject: Education
subject: Cancer

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: Summarize the recent developments and the current role of 18F-FET PET in brain tumours according to recent literature data. Describe the current limitations of 18F-FET PET and the need for expertise in the interpretation of PET...
Access to dental services for children with special health care needs : a pilot study at British Columbia Children's Hospital Department of Dentistry
Creators: name: Vertel, Nancy
Publisher: name: University of British Columbia
Year: 2013

description: Objectives: This pilot project, conducted at the Dental Department of BC Children’s Hospital (DD-BCCH), aimed to 1) identify issues that affect access to dental services for Children with Special Health Care Needs (CSHCN), 2) assess parental perceptions of the oral health status of their child and 3) determine the practicality and feasibility of survey research with this patient population Methods: Caregivers of CSHCN who were patients of the DD-BCCH were recruited by letter, posted advertisement and direct request. Information on caregiver’s perceptions of enabling factors and barriers to dental services and their understanding of their child’s oral health status were collected using a pre-tested survey instrument. In addition, demographic information, referral source, insurance coverage, medical diagnosis, and anticipated dental treatment were gathered from the child’s dental record. Quantitative data was analyzed descriptively and qualitative comments from parents by thematic analysis. Results: Common medical diagnoses for the sample of CSHCN (n=50) were genetic disorder/syndrome, developmental delay, sensory impairments and autism. Caregivers from mid-to-upper income levels formed 50% of the sample. Payment methods reported by parents included private dental insurance (52%), public benefits (36%), or out-of-pocket funds (24%). Of the sample, 50% were referred by a medical professional and most children (90%) had had a dental appointment within the last year. About 50% of caregivers reported the following barriers to obtaining dental care prior to attending at BCCH: dentist not trained or comfortable treating or managing the child’s behaviour; complexity of child’s medical condition and financial barriers. We were unable to determine a true parental perception of the oral health of the child because many parents answered the survey after the oral examination had been completed. Conclusions: 1) The complexity of the child’s medical status, limited ability of dental providers to deliver care and financial obstacles were commonly-reported barriers to dental care identified by parents 2) Parental perceptions of the oral health status of the child were not able to be reliably assessed. 3) A mail out survey was not a suitable method to obtain information about issues of access to dental services for CSHCN within the population at the DD-BCCH.
title: Treatment of the Candida subspecies Candida albicans and Candida parapsilosis with two far-UVC sources to minimise mycoses in clinical practice
Creators: name: Schleusener, Johannes
name: Lohan, Silke B.
name: Busch, Loris
name: Ghoreschi, Kamran
name: Ploch, Neysha Lobo
name: May, Stefanie
name: Vogel, Simone
name: Eberle, Jürgen
name: Meinke, Martina C.
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: 233 nm UVC LED
subject: Candida
subject: clinical application
subject: disinfection
subject: fungal infections
subject: mycoses
classificationCode: 610
subject: Medizin und Gesundheit

description: Fungal infections have increased considerably over the last decades, becoming progressively resistant to common drugs. UVC light has shown microbiological eradication effects, whereby the wavelength of 254 nm is strongly carcino- and mutagenic. Therefore, 222 and 233 nm, which do not significantly harm skin cells, were tested for their antifungal effects. Microbicidal doses were reached at 40 mJ/cm(2) for both wavelengths, resulting in only minor superficial skin damage (<20 mu m). UVC irradiation with far-UVC <240 nm represents a new opportunity to effectively eradicate even larger pathogens on tissue causing no or strongly reduced DNA and tissue damage.
Connecting Neutron Star Observations to Three-Body Forces in Neutron Matter and to the Nuclear Symmetry Energy
Creators: name: Steiner, A. W.
name: Gandolfi, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Using a phenomenological form of the equation of state of neutron matter near the saturation density which has been previously demonstrated to be a good characterization of quantum Monte Carlo simulations, we show that currently available neutron star mass and radius measurements provide a significant constraint on the equation of state of neutron matter. At higher densities we model the equation of state using polytropes and a quark matter model, and we show that our results do not change strongly upon variation of the lower boundary density where these polytropes begin. Neutron star observations offer an important constraint on a coefficient which is directly connected to the strength of the three-body force in neutron matter, and thus some theoretical models of the three-body may be ruled out by currently available astrophysical data. In addition, we obtain an estimate of the symmetry energy of nuclear matter and its slope that can be directly compared to the experiment and other theoretical calculations.
description: 6 pages, 6 figures, final version, includes supplemental material
title: Manual and semi-automated delineation of locally advanced rectal cancer subvolumes with diffusion-weighted MRI
Creators: name: Hearn, Nathan
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Colon
subject: Gastrointestinal tract
subject: MR
subject: MR-Functional imaging
subject: Radiation therapy / Oncology
subject: Cancer
subject: Radiotherapy techniques

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: Optimisation of pathological complete response (pCR) rates after concurrent neoadjuvant chemoradiotherapy (nCRT) for locally advanced rectal cancer (LARC) could improve the feasibility of surgery-sparing treatment paradigms. While dose escalation of...
Selecting the suitable dopants: electronic structures of transition metal and rare earth doped thermoelectric sodium cobaltate
Creators: name: Assadi, M. H. N.
name: Li, S.
name: Yu, A. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Engineered $Na_{0.75}CoO_2$ is considered a prime candidate to achieve high-efficiency thermoelectric systems to regenerate electricity from waste heat. In this work, three elements with outmost electronic configurations, (1) an open d shell (Ni), (2) a closed d shell (Zn), and (3) a half filled f shell (Eu) with maximum unpaired electrons, were selected to outline the dopants' effects on electronic and crystallographic structures of $Na_{0.75}CoO_2$. Systematic $ab$ $initio$ density functional calculations with $DMOL^3$ package showed that the Ni and Zn were more stable when substituting Co with formation energy $-2.35$ eV, $2.08$ eV when Fermi level equals to the valence band maximum. While Eu is more stable when it substitutes Na having formation energy of $-2.64$ eV. As these results show great harmony with existing experimental data, they provide new insights into the fundamental principle of dopant selection for manipulating the physical properties in the development of high-performance sodium cobaltate based multifunctional materials.
description: 8 pages, 9 figures
title: Analysing cerebrospinal fluid with explainable deep learning: From diagnostics to insights
Creators: name: Schweizer, Leonille
name: Seegerer, Philipp
name: Kim, Hee‐Yeong
name: Saitenmacher, René
name: Muench, Amos
name: Barnick, Liane
name: Osterloh, Anja
name: Dittmayer, Carsten
name: Jödicke, Ruben
name: Pehl, Debora
name: Reinhardt, Annekathrin
name: Ruprecht, Klemens
name: Stenzel, Werner
name: Wefers, Annika K.
name: Harter, Patrick N.
name: Schüller, Ulrich
name: Heppner, Frank L.
name: Alber, Maximilian
name: Müller, Klaus‐Robert
name: Klauschen, Frederick
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2023
Subjects: subject: cell detection
subject: cerebrospinal fluid
subject: deep learning
subject: explainable AI
subject: heatmaps
classificationCode: 610
subject: Medizin und Gesundheit

description: Aim Analysis of cerebrospinal fluid (CSF) is essential for diagnostic workup of patients with neurological diseases and includes differential cell typing. The current gold standard is based on microscopic examination by specialised technicians and neuropathologists, which is time-consuming, labour-intensive and subjective. Methods We, therefore, developed an image analysis approach based on expert annotations of 123,181 digitised CSF objects from 78 patients corresponding to 15 clinically relevant categories and trained a multiclass convolutional neural network (CNN). Results The CNN classified the 15 categories with high accuracy (mean AUC 97.3%). By using explainable artificial intelligence (XAI), we demonstrate that the CNN identified meaningful cellular substructures in CSF cells recapitulating human pattern recognition. Based on the evaluation of 511 cells selected from 12 different CSF samples, we validated the CNN by comparing it with seven board-certified neuropathologists blinded for clinical information. Inter-rater agreement between the CNN and the ground truth was non-inferior (Krippendorff's alpha 0.79) compared with the agreement of seven human raters and the ground truth (mean Krippendorff's alpha 0.72, range 0.56–0.81). The CNN assigned the correct diagnostic label (inflammatory, haemorrhagic or neoplastic) in 10 out of 11 clinical samples, compared with 7–11 out of 11 by human raters. Conclusions Our approach provides the basis to overcome current limitations in automated cell classification for routine diagnostics and demonstrates how a visual explanation framework can connect machine decision-making with cell properties and thus provide a novel versatile and quantitative method for investigating CSF manifestations of various neurological diseases.
Substance use counsellors’ understanding and incorporation of ethnocultural diversity factors : an interpretive description
Creators: name: Rostam, Hajera
Publisher: name: University of British Columbia
Year: 2013

description: The objective of this study was to explore how counsellors understand and incorporate ethno-cultural (EC) diversity factors in alcohol and drug (A&D) counselling, in order to glean practical information that may contribute to culturally competent and safe practices. Qualitative interviews within an Interpretive Description (Thorne, 2008) approach were conducted with 23 A&D counsellors, 4 of whom reported serving as both counsellors and supervisors. As per design, additional information rich sources were sought that included interviews with 4 participants identifying as other professionals affiliated with A&D services (program managers, directors and consultants). All participants were affiliated with the Lower Mainland, British Columbia, health authorities. Interviews were analyzed using Miles and Hubermans’ (1994) framework. Counsellors demonstrated varying levels of awareness and positions towards EC differences with conversations ranging from overemphasis on similarities to consideration of EC factors as an ethical and integral part of practice. Participants’ view of “addiction” also seemed to inform how they spoke about the relevance of EC factors in therapy. An integrated approach to A&D care revealed multiple levels of analysis and consideration of clients’ socio-cultural contexts. The addiction as a disease model, however, constructed A&D problems as universal and EC factors as secondary. The A&D organizational context included a discussion of strengths and barriers to provision of services to diverse clients. Perspectives that constructed EC differences as secondary seemed to be accompanied with limited self-reflection and examples of application into practice. On the other hand, reflexive practices embedded within social justice elements pointed to counsellors articulating specific examples of integrating EC factors in therapy. Relevant ethical dimensions as well as implications for practice, theory and research were identified.
title: Stiffness of Muscles and Tendons of the Lower Limb of Professional and Semiprofessional Athletes Using Shear Wave Elastography
Creators: name: Romer, Claudia
name: Czupajllo, Julia
name: Zessin, Enrico
name: Fischer, Thomas
name: Wolfarth, Bernd
name: Lerchbaumer, Markus H.
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: elastography
subject: muscle
subject: shear wave elastography
subject: tendon
subject: ultrasound
classificationCode: 610
subject: Medizin und Gesundheit

description: Objective Shear wave elastography (SWE) allows assessment of muscle and tendon stiffness and can be used to diagnose soft tissue pathologies such as tendinopathies. In sports medicine, SWE may have the potential to uncover structural changes early on before they lead to functional impairment. To systematically analyze possible differences in tendon and muscle stiffness of the lower limb between professional (PG) and semiprofessional female athletes (SG) using SWE and to compile reference values for developing preventive medicine approaches for professional athletes. Methods Standardized SWE of both lower limb tendons and muscles (Achilles tendon [AT], soleus muscle insertion [SM], patellar tendon [PT], quadriceps tendon [QT], vastus medialis muscle [VM]) in the longitudinal plane was performed with the tendons in relaxed position in 24 healthy professional female athletes (PG) in comparison with 24 healthy semiprofessional female athletes (SG). Results Median tendon and muscle stiffness was significantly higher in professional athletes (AT:PG, 11.12 m/s vs SG, 7.33 m/s, P < .001; SM: 1.77 m/s vs 1.14 m/s, P < .001; VM: 1.63 m/s vs 0.87 m/s, P < .001; QT: 3.31 m/s vs 2.61 m/s, P < .05). There was no significant difference in patellar tendon stiffness between PG and SG (PT: 2.57 m/s vs 3.21, P = .25). Conclusion Professional female athletes have higher stiffness values than semiprofessional female athletes in lower limb muscles and tendons, except for the patellar tendon. Knowledge of such differences is necessary for diagnosing tendinopathy and injuries. Musculoskeletal SWE could offer great benefits in sports medicine as well as in rehabilitation and preventive medicine.
title: Systematic review and meta-analysis of neoadjuvant radiotherapy dose escalation for improving rate of pathological response in locally advanced rectal cancer
Creators: name: Hearn, Nathan
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Colon
subject: Gastrointestinal tract
subject: Other
subject: Radiation therapy / Oncology
subject: Cancer

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: Approximately 15% of patients with locally advanced rectal cancer achieve a pathological complete response (pCR) to standard neoadjuvant chemoradiotherapy with 45-50Gy[1-3]. Improving pCR may facilitate surgery-sparing treatment paradigms and...
Modular Invariance for Twisted Modules over a Vertex Operator Superalgebra
Creators: name: van Ekeren, Jethro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The purpose of this paper is to generalize Zhu's theorem about characters of modules over a vertex operator algebra graded by integer conformal weights, to the setting of a vertex operator superalgebra graded by rational conformal weights. To recover SL_2(Z)-invariance of the characters it turns out to be necessary to consider twisted modules alongside ordinary ones. It also turns out to be necessary, in describing the space of conformal blocks in the supersymmetric case, to include certain `odd traces' on modules alongside traces and supertraces. We prove that the set of supertrace functions, thus supplemented, spans a finite dimensional SL_2(Z)-invariant space. We close the paper with several examples.
description: 42 pages. Published version
title: Does financial toxicity exist amongst adult cancer survivors treated with definitive radiotherapy? A pilot study from Singapore
Creators: name: Ng, Ivy
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Oncology
subject: Cone beam CT
subject: Radiation therapy / Oncology
subject: Cancer

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: Cancer survivors may experience financial toxicity (FT) arising from the diagnosis, treatment and, potentially, loss of employment Singapore healthcare model is unique – it emphasizes on ‘shared responsibility’, co-payment and means-tested...
title: Successful control of Candida auris transmission in a German COVID-19 intensive care unit
Creators: name: Hinrichs, Carl
name: Wiese‐Posselt, Miriam
name: Graf, Barbara
name: Geffers, Christine
name: Weikert, Beate
name: Enghard, Philipp
name: Aldejohann, Alexander
name: Schrauder, Annette
name: Knaust, Andreas
name: Eckardt, Kai‐Uwe
name: Gastmeier, Petra
name: Kurzai, Oliver
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: antifungal treatment
subject: Candida auris
subject: COVID-19
subject: infection prevention and control measures
classificationCode: 610
subject: Medizin und Gesundheit

description: Background Candida auris a frequently multidrug-resistant yeast species that poses a global health threat due to its high potential for hospital outbreaks. While C. auris has become endemic in parts of Asia and Africa, transmissions have so far rarely been reported in Western Europe except for Great Britain and Spain. We describe the first documented patient-to-patient transmission of C. auris in Germany in a COVID-19 intensive care unit (ICU) and infection control measures implemented to prevent further spread of the pathogen. Methods Identification of C. auris was performed by MALDI-TOF and confirmed by internal transcribed spacer (ITS) sequencing. Antifungal susceptibility testing was carried out. We conducted repeated cross-sectional examinations for the presence of C. auris in the patients of the affected ICU and investigated possible routes of transmission. Results The index patient had been transferred to Germany from a hospital in Northern Africa and was found to be colonised with C. auris. The contact patient developed C. auris sepsis. Infection prevention and control (IPC) measures included strict isolation of the two C. auris patients and regular screening of non-affected patients. No further case occurred during the subsequent weeks. Reusable blades used in video laryngoscope-guided intubation were considered as the most likely vehicle of transmission. Conclusions In view of its high risk of transmission, vigilance regarding C. auris colonisation in patients referred from endemic countries is crucial. Strict and immediate IPC measures may have the potential to prevent C. auris outbreaks.
Проблемы, возникающие при совершенствовании асинхронных двигателей
Creators: name: Владимировна, Шевченко Валентина
name: Горюшкин Никита Игоревич
Publisher: name: Zenodo
Year: 2015
Subjects: электрические машины
асинхронные двигатели
обмотка статора
пусковые характеристики

description: На русском: [Шевченко В.В., Горюшкин Н.И. Проблемы, возникающие при совершенствовании асинхронных двигателей // Сборник тезисов докладов Всеукраинской научно-практической конференции молодых ученых,  специалистов,  аспирантов  "Проблемы  энергоресурсосбережения  в промышленном  регионе.  Наука  и  практика",  20-24 апреля 2015 года, Мариуполь, секция "Энергосбережение в электротехнических комплексах, сетях и системах". - Украина, Мариуполь: ГВУЗ "Приазовский государственный технический университет", 2015. - С. 9. https://doi.org/10.5281/zenodo.2573050]

Обсуждаются вопросы изготовления обмоток роторов из алюминия и меди, конструкционные особенности и рабочие характеристики асинхронных двигателей.

Ключевые слова: электрические машины, асинхронные двигатели, обмотка статора, пусковые характеристики.

Репозиторий НТУ "ХПИ" - открыть pdf.

На странице совета молодых ученых ГВУЗ "ПГТУ" - скачать материалы конференции в архиве

Сборник тезисов докладов и программа конференции. https://doi.org/10.5281/zenodo.2572763
title: A review of CT reporting of blunt splenic trauma at a tertiary trauma centre
Creators: name: Lu, Ha
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Abdomen
subject: Trauma
subject: CT
subject: Embolisation
subject: Surgery
subject: Trauma

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: The spleen is the most commonly injured organ in blunt abdominal trauma. (1) Management of blunt splenic injury includes conservative management, embolisation and splenectomy. (2) Management has progressively shifted towards non-operative...
Interacting Particles on the Line and Dunkl Intertwining Operator of Type A: Application to the Freezing Regime
Creators: name: Andraus, Sergio
name: Katori, Makoto
name: Miyashita, Seiji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider a one-dimensional system of Brownian particles that repel each other through a logarithmic potential. We study two formulations for the system and the relation between them. The first, Dyson's Brownian motion model, has an interaction coupling constant determined by the parameter beta > 0. When beta = 1,2 and 4, this model can be regarded as a stochastic realization of the eigenvalue statistics of Gaussian random matrices. The second system comes from Dunkl processes, which are defined using differential-difference operators (Dunkl operators) associated with finite abstract vector sets called root systems. When the type-A root system is specified, Dunkl processes constitute a one-parameter system similar to Dyson's model, with the difference that its particles interchange positions spontaneously. We prove that the type-A Dunkl processes with parameter k > 0 starting from any symmetric initial configuration are equivalent to Dyson's model with the parameter beta = 2k. We focus on the intertwining operators, since they play a central role in the mathematical theory of Dunkl operators, but their general closed form is not yet known. Using the equivalence between symmetric Dunkl processes and Dyson's model, we extract the effect of the intertwining operator of type A on symmetric polynomials from these processes' transition probability densities. In the strong coupling limit, the intertwining operator maps all symmetric polynomials onto a function of the sum of their variables. In this limit, Dyson's model freezes, and it becomes a deterministic process with a final configuration proportional to the roots of the Hermite polynomials multiplied by the square root of the process time, while being independent of the initial configuration.
description: LaTeX, 30 pages, 1 figure, 1 table. Corrected for submission to Journal of Physics A
Resources for Practicing Open Science with Qualitative Research in Education
Creators: name: Renbarger, Rachel
name: Steltenpohl, Crystal
Publisher: name: Forschungzentrum Jülich
Year: 2021

description: OverviewThis list of resources consists of resources for researchers, editors, and reviewers interested in practicing open science principles, particularly in education research. This list is not exhaustive but meant as a starting point for individuals wanting to learn more about doing open science work specifically for qualitative research.This list was compiled by the following contributors: Rachel Renbarger, Sondra Stegenga, Thomas, Sebastian Karcher, and Crystal Steltenpohl. This resource list grew out of a hackathon at the Virtual Unconference on Open Scholarship Practices in Education Research.
title: Registrar preparedness for after-hours paediatric neuroradiology reporting
Creators: name: Yu, Yospol
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Neuroradiology brain
subject: Paediatric
subject: CT
subject: Education
subject: Acute

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal information References
description: Learning objectives: To assess whether the Royal Australian and New Zealand College of Radiologists (RANZCR) curriculum adequately prepares registrars for after-hours paediatric computed tomography (CT) neuroimaging...
title: Real‐life experiences with bulevirtide for the treatment of hepatitis delta—48 weeks data from a German centre
Creators: name: Zöllner, Caroline
name: Hofmann, Jörg
name: Lutz, Katrin
name: Tacke, Frank
name: Demir, Münevver
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: entry inhibitor
subject: HDV therapy
subject: real-life
classificationCode: 610
subject: Medizin und Gesundheit

description: In July 2020, the entry inhibitor bulevirtide was approved in the European Union for the treatment of chronic hepatitis delta virus (HDV) infection. We describe the first 48 weeks of bulevirtide therapy in eight patients (n = 7 male, n = 1 female; n = 3 compensated cirrhosis) treated at our centre. Median ALT values declined from 82 to 34 U/L after 48 weeks. Median HDV RNA dropped from 13 380 000 to 3135 copies/ml. One patient showed no significant response and was discontinued at week 16. Overall, we observed a favourable safety profile and a marked biochemical and virological response in the majority of our patients.
title: Pineal cyst apoplexy causing acute obstructive hydrocephalus: Literature review of imaging, treatment and pathophysiology of this rare entity.
Creators: name: Xiradis, Nicholas
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: CNS
subject: Head and neck
subject: Oncology
subject: MR
subject: Education
subject: Imaging sequences
subject: Surgery
subject: Neoplasia
subject: Obstruction / Occlusion
subject: Pathology

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: Although considered rare, pineal cyst and pineal cyst haemorrhage should be considered in the headache differential diagnosis in young adults. Magnetic Resonance Imaging (MRI) imaging is the mainstay for the diagnosis of pineal cyst haemorrhage....
Sample-to-sample torque fluctuations in a system of coaxial randomly charged surfaces
Creators: name: Naji, Ali
name: Sarabadani, Jalal
name: Dean, David S.
name: Podgornik, Rudolf
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Polarizable randomly charged dielectric objects have been recently shown to exhibit long-range lateral and normal interaction forces even when they are effectively net neutral. These forces stem from an interplay between the quenched statistics of random charges and the induced dielectric image charges. This type of interaction has recently been evoked to interpret measurements of Casimir forces in vacuo, where a precise analysis of such disorder-induced effects appears to be necessary. Here we consider the torque acting on a randomly charged dielectric surface (or a sphere) mounted on a central axle next to another randomly charged surface and show that although the resultant mean torque is zero, its sample-to-sample fluctuation exhibits a long-range behavior with the separation distance between the juxtaposed surfaces and that, in particular, its root-mean-square value scales with the total area of the surfaces. Therefore, the disorder-induced torque between two randomly charged surfaces is expected to be much more pronounced than the disorder-induced lateral force and may provide an effective way to determine possible disorder effects in experiments, in a manner that is independent of the usual normal force measurement.
description: 7 pages, 3 figs
title: Summary and overview of the first ISMRM workshop on magnetic resonance elastography, August 25–26, 2022, Berlin, Germany
Creators: name: Guo, Jing
name: Marticorena Garcia, Stephan
name: Sack, Ingolf
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: Charité - Univeristatsmedizin Berlin
subject: international workshop
subject: ISMRM
subject: MR elastography
subject: MRE
subject: study group
classificationCode: 610
subject: Medizin und Gesundheit

description: An ISMRM workshop on MR elastography was held at Charite-Universitatsmedizin Berlin on August 25-26, 2022. As an exclusively in-person event, 65 participants from 9 countries attended the workshop despite COVID-19-related restrictions. The topics of the workshop covered cellular and microtissue mechanical interactions, the development of MR elastography driver technology, approaches to inverse problems, clinical applications, and integration of MR elastography into multiparametric MRI protocols. The workshop was a great success by promoting direct knowledge exchange as well as for strategizing future directions for MR elastography. In this symposium review, we briefly summarized all oral presentations as well as the concluding panel discussion.
Malthacus kolymensis
Creators: name: Yang, Yu-Xia
name: Yang, Xing-Ke
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cantharidae
Malthacus
Malthacus kolymensis

description: Malthacus kolymensis (Kazantsev, 1992)
 MATERIAL. China: Heilongjiang: Hailin, 3. VI 1971, 1; Daicen, Liangshuigou, 2.VII 1956, 1; same data, 11. VI 1956, 1.
DISTRIBUTION. China (new record): Heilongjiang; Russia (Far East) (Kazantsev & Brancucci, 2007).
description: Published as part of Yang, Yu-Xia & Yang, Xing-Ke, 2013, Sixteen Species Of The Subfamily Cantharinae (Coleoptera, Cantharidae) New For The Fauna Of China, pp. 17-20 in Far Eastern Entomologist 256 on page 19, DOI: 10.5281/zenodo.10085015
Cosmology with space-based gravitational-wave detectors --- dark energy and primordial gravitational waves ---
Creators: name: Nishizawa, Atsushi
name: Yagi, Kent
name: Taruya, Atsushi
name: Tanaka, Takahiro
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Proposed space-based gravitational-wave (GW) detectors such as DECIGO and BBO will detect ~10^6 neutron-star (NS) binaries and determine the luminosity distances to the binaries with high precision. Combining the luminosity distances with cosmologically-induced phase corrections on the GWs, cosmological expansion out to high redshift can be measured without the redshift determinations of host galaxies by electromagnetic observation and be a unique probe for dark energy. On the other hand, such a NS-binary foreground should be subtracted to detect primordial GWs produced during inflation. Thus, the constraining power on dark energy and the detectability of the primordial gravitational waves strongly depend on the detector sensitivity and are in close relation with one another. In this paper, we investigate the constraints on the equation of state of dark energy with future space-based GW detectors with/without identifying the redshifts of host galaxies. We also study the sensitivity to the primordial GWs, properly dealing with the residual of the NS binary foreground. Based on the results, we discuss the detector sensitivity required to achieve the forementioned targeted study of cosmology.
description: 17 pages, 11 figures
title: Isolated Unilateral Small Trigeminal Nerve and Meckel's Cave in a Patient with Trigeminal Neuralgia
Creators: name: Singh, Jasnavaljit
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Anatomy
subject: CNS
subject: MR
subject: Education
subject: Inflammation

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: The puporse of this poster is to showcase a rare case of unilateral trigeminal neuralgia with underlying unilateral hypoplasia of the trigeminal nerve and Meckel’s cave. Meckel’s cave is a CSF-filled dural recess located in the sphenoid bone. It...
Pricing Interest Rate Swap Subject to Bilateral Counterparty Risk
Creators: name: White, Alan
Publisher: name: Zenodo
Year: 2019
Subjects: defaultable interest rate swap, bilateral defaultable claim, credit asymmetry, market models, Black model, LIBOR market model, reduced-form model, credit value adjustment, swap spread

description: This paper presents an analytical model for valuing interest rate swaps, subject to bilateral counterparty credit risk. The counterparty defaults are modeled by the reduced-form model as the first jump of a time-inhomogeneous Poisson process. All quantities modeled are market-observable. The closed-form solution gives us a better understanding of the impact of the credit asymmetry on swap value, credit value adjustment, swap rate and swap spread.
Search for a light exotic particle in J/psi radiative decays
Creators: name: BESIII Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using a data sample containing 1.06x10^8 psi' events collected with the BESIII detector at the BEPCII electron-positron collider, we search for a light exotic particle X in the process psi' -> pi^+ pi^- J/psi, J/psi -> gamma X, X -> mu^+ mu^-. This light particle X could be a Higgs-like boson A^0, a spin-1 U boson, or a pseudoscalar sgoldstino particle. In this analysis, we find no evidence for any mu^+mu^- mass peak between the mass threshold and 3.0 GeV/c^2. We set 90%-confidence-level upper limits on the product-branching fractions for J/psi -> gamma A^0, A^0 -> mu^+ mu^- which range from 4x10^{-7} to 2.1x10^{-5}, depending on the mass of A^0, for M(A^0)<3.0 GeV/c^2. Only one event is seen in the mass region below 255 MeV/c^2 and this has a mu^+mu^- mass of 213.3 MeV/c^2 and the product branching fraction upper limit 5x10^{-7}.
description: 7 pages, 3 figures, submitted to Physical Review D
title: Myeloid cell subpopulations compensate each other for Ccr2-deficiency in glioblastoma
Creators: name: Bungert, Alexander D.
name: Urbantat, Ruth M.
name: Jelgersma, Claudius
name: Bekele, Biniam M.
name: Mueller, Susanne
name: Mueller, Annett
name: Felsenstein, Matthäus
name: Dusatko, Silke
name: Blank, Anne
name: Ghori, Adnan
name: Boehm‐Sturm, Philipp
name: Koch, Stefan P.
name: Vajkoczy, Peter
name: Brandenburg, Susan
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: Ccr2(- -) transgenic mice
subject: chimera
subject: GBM
subject: macrophages
subject: microglia
classificationCode: 610
subject: Medizin und Gesundheit

description: Aims Glioblastomas are high-grade brain tumours that are characterised by the accumulation of brain-resident microglia and peripheral macrophages. Recruitment of these myeloid cells can be facilitated by CCR2/CCL2 signalling. Besides the well-known CCR2+ macrophages, we have identified microglia expressing CCR2 in glioma tissues. Thus, we investigated how Ccr2-deficiency of one of the myeloid cell populations affects the other population and tumour biology. Methods We generated four chimeric groups to analyse single and combined Ccr2-deficiency of microglia and macrophages. On day 21 after tumour cell implantation (GL261), we conducted flow cytometry, immunofluorescence and real-time polymerase chain reaction analyses. Tumour volume and metabolism were determined by magnetic resonance imaging and magnetic resonance spectroscopy. Moreover, in vitro studies were performed with primary microglia and bone marrow-derived macrophages. Results We demonstrated reduced infiltration of macrophages and microglia depending on the lack of Ccr2. However, the total number of myeloid cells remained constant except for the animals with dual Ccr2-knockout. Both microglia and macrophages with Ccr2-deficiency showed impaired expression of proinflammatory molecules and altered phagocytic activity. Despite the altered immunologic phenotype caused by Ccr2-deficiency, glioma progression and metabolism were hardly affected. Alterations were detected solely in apoptosis and proliferation of tumours from animals with specific Ccr2-deficient microglia, whereas vessel stability was increased in mice with Ccr2-knockout in both cell populations. Conclusion These results indicate that microglia and macrophages provide a homoeostatic balance within glioma tissue and compensate for the lack of the corresponding counterpart. Moreover, we identified that the CCR2/CCL2 axis is involved in the immunologic function of microglia and macrophages beyond its relevance for migration.
Nonuniqueness of the Fierz-Pauli mass term for a nonsymmetic tensor
Creators: name: Dalmazi, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Starting with a description of massive spin-2 particles in D=4 in terms of a mixed symmetry tensor $\tmnd $ without totally antisymmetric part ($T_{[[μν]ρ]}=0$) we obtain a dual model in terms of a nonsymmetric tensor $e_{μν}$. The model is of second-order in derivatives and its mass term $(e_{μν}e^{νμ} + c \, e^2)$ contains an arbitrary real parameter $c$. Remarkably, it is free of ghosts for any real value of $c$ and describes a massive spin-2 particle as expected from duality. The antisymmetric part $e_{[μν]}$ plays the role of auxiliary fields, vanishing on shell. In the massless case the model describes a massless spin-2 particle without ghosts.
description: 15 pages, no figures, typos fixed, massless case revised, 3 references added
The eye of the beholder : discrepancy reactions and prospective memory retrieval
Creators: name: Pestonji, Natasha
Publisher: name: University of British Columbia
Year: 2013

description: How do we react to cues that we process differently than expected? Discrepancy- attribution theory posits that cognitively processing targets with differing quality generates a discrepancy response that influences cognitive decisions. To test this assertion, I conducted a series of four experiments designed to investigate the role of a discrepancy-attribution mechanism in making rating judgments on abstract stimuli that differed in colour saturation. Studies I and II required students to discriminate between pairs of virtual grid patterns displayed in red, blue and green. Results on a same-different judgment task revealed very similar patterns of speed and task accuracy across colours, with poor performance on paired displays with only a small saturation difference but excellent performance when paired displays differed by larger increments of saturation scale points. These two studies provided a saturation discrimination curve, which could be used to find appropriate standard and discrepant stimuli for future work. In Experiments III and IV, I used this pilot data to then induce discrepancy reactions by first creating and then violating either strong or weak cognitive expectancies of the perceptual processing of grid patterns. Students were then required to make beauty judgments of these patterns. Results of Experiment III and IV revealed that discrepancy reactions caused faster response times when discrepant stimuli differed in a positive direction. Taken together, these findings can shed new light on the role of discrepancy reactions in cognitive judgments, and prospective memory. Discrepancy Attribution Theory has been proposed as the primary mechanism underlying prospective memory (ProM) retrieval, and these new results have implications for ProM cue retrieval as well as far-reaching applications for decision-making, advertising, and consumer behaviour.
title: Diagnostic Accuracy of Pelvic MRI: Endometrial Cancer Stage 1A vs 1B
Creators: name: Li, Ray Yue
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Genital / Reproductive system female
subject: MR
subject: Audit and standards
subject: Cancer

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: To evaluate the diagnostic accuracy of preoperative MRI in FIGO stage 1 endometrial cancer in central and lower North Island DHBs in NZ, and identify the challenges of pelvic MRI in differentiating between 1A and 1B disease in order to improve the...
title: An introduction to infinite projected entangled-pair state methods for variational ground state simulations using automatic differentiation
Creators: name: Naumann, Jan
name: Weerda, Erik Lennart
name: Rizzi, Matteo
name: Eisert, Jens
name: Schmoll, Philipp
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Tensor networks
subject: Ground state simulations
subject: Tensor networks algorithms
subject: Variational iPEPS framework
subject: Two-dimensional lattices
classificationCode: 539
subject: Moderne Physik

description: Tensor networks capture large classes of ground states of phases of quantum matter faithfully and efficiently. Their manipulation and contraction has remained a challenge over the years, however. For most of the history, ground state simulations of two-dimensional quantum lattice systems using (infinite) projected entangled pair states have relied on what is called a time-evolving block decimation. In recent years, multiple proposals for the variational optimization of the quantum state have been put forward, overcoming accuracy and convergence problems of previously known methods. The incorporation of automatic differentiation in tensor networks algorithms has ultimately enabled a new, flexible way for variational simulation of ground states and excited states. In this work we review the state-of-the-art of the variational iPEPS framework, providing a detailed introduction to automatic differentiation, a description of a general foundation into which various two-dimensional lattices can be conveniently incorporated, and demonstrative benchmarking results.
title: Audit of Barium Swallow Technique Amongst Radiology Consultants and Registrars
Creators: name: Chen, Anni
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2021
Subjects: subject: Abdomen
subject: Fluoroscopy
subject: Barium meal
subject: Motility

description: Purpose Methods and materials Results Conclusion Personal information References
description: Purpose: This is an observational study which aims to examine the different barium swallow techniques amongst radiology consultants and registrars and compare them against current available...