cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: HPV-positive oropharyngeal squamous cell carcinoma (OPSCC); a pictorial review.
Creators: name: Halder, Arani
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Ear / Nose / Throat
subject: Head and neck
subject: MR
subject: CT
subject: PET-CT
subject: Biopsy
subject: Neoplasia
subject: Epidemiology
subject: Metastases

description: Learning Objectives Background Imaging Findings OR Procedure Details Conclusion Personal Information References
description: Learning Objectives: 1) To describe the radiological, epidemiological and molecular findings inHPV-positive OPSCC. 2) To highlight the importance of HPV status in...
Final Thoughts
Creators: name: Malizia, Emil
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: I want to thank the editors for inviting me to have the last word in this CPJ issue. What follows are thoughts based on my knowledge of regional economic development, the subject I began researching at Cornell University in 1965. I’ll present an idea and then suggest applications for planners. I will not present evidence. If you want to discuss any of the following, please contact me.
title: Quantitative CT features of tumor necrosis in T2-4 non-small cell lung cancer: initial results
Creators: name: Jafari Mousvi, Foroogh
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Molecular imaging
subject: PET-CT
subject: CT
subject: Respiratory system
subject: Lung
subject: Radiation therapy / Oncology
subject: Cancer

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Lung cancer is one of the most common cancers worldwide. Having reliable prognostic tools, which could predict survival independent of treatment course, is important as it could guide further management options. One imaging characteristic that has...
Origin of fermion masses without spontaneous symmetry breaking
Creators: name: Ayyar, Venkitesh
name: Chandrasekharan, Shailesh
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using a simple three dimensional lattice four-fermion model we argue that massless fermions can become massive due to interactions without the need for any spontaneous symmetry breaking. Using large scale Monte Carlo calculations within our model, we show that this non-traditional mass generation mechanism occurs at a second order quantum critical point that separates phases with the same symmetries. Universality then suggests that the new origin for the fermion mass should be of wide interest.
description: 11 pages, 20 figures (5 pages, 7 figures in the main paper and 6 pages, 13 figures in the supplementary material)
Extended radio emission in the galaxy cluster MS 0735.6+7421 detected with the Karl G. Jansky Very Large Array
Creators: name: Bégin, T.
name: Hlavacek-Larrondo, J.
name: Rhea, C. L.
name: Gendron-Marsolais, M.
name: McNamara, B.
name: van Weeren, R. J.
name: Richard-Laferrière, A.
name: Guité, L.
name: Prasow-Émond, M.
name: Haggard, D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: MS 0735.6+7421 ($z = 0.216$) is a massive cool core galaxy cluster hosting one of the most powerful active galactic nuclei (AGN) outbursts known. The radio jets of the AGN have carved out an unusually large pair of X-ray cavities, each reaching a diameter of $200$ kpc. This makes MS 0735.6+7421 a unique case to investigate active galactic nuclei feedback processes, as well as other cluster astrophysics at radio wavelengths. We present new low-radio-frequency observations of MS 0735.6+7421 taken with the Karl G. Jansky Very Large Array (VLA): 5 hours of P-band ($224-480$ MHz) and 5 hours of L-band ($1-2$ GHz) observations, both in C configuration. Our VLA P-band ($224-480$ MHz) observations reveal the presence of a new diffuse radio component reaching a scale of $\sim$ $900$ kpc in the direction of the jets and of $\sim$ $500$ kpc in the direction perpendicular to the jets. This component is centered on the cluster core and has a radio power scaled at $1.4$ GHz of $P_{1.4\text{ GHz}} = (4\pm2)\times 10^{24}$ WHz$^{-1}$. Its properties are consistent with those expected from a radio mini-halo as seen in other massive cool core clusters, although it may also be associated with radio plasma that has diffused out of the X-ray cavities. Observations at higher spatial resolution are needed to fully characterize the properties and nature of this component. We also suggest that if radio mini-halos originate from jetted activity, we may be witnessing the early stages of this process.
description: 11 pages, 7 figures, submitted to MNRAS
Personality Change and Environmental Concerns in GSOEP
Creators: name: Hopwood, Christopher
name: Schwaba, Ted
name: Bleidorn, Wiebke
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Personality and Social Contexts
subject: Developmental Psychology
subject: Economics
subject: Environmental Studies
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: big five
subject: climate change
subject: environment
subject: personality
subject: personality change
subject: personality development
subject: sustainability
subject: traits

description: The goal of this study is to examine whether changes in personality traits are related to changes in environmental concern over time.
title: Digital Breast Tomosynthesis and Breast Cancer Visualization in High-Risk Women
Creators: name: O'Connell, Sarah
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Breast
subject: Mammography
subject: Computer Applications-Detection, diagnosis
subject: Screening
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: •To compare the visibility of cancers in high-risk patients on 2D + tomosynthesis vs. 2D mammography alone •To assess the potential contribution of tomosynthesis in the imaging of high-risk...
North Carolina's Wetlands Restoration Program
Creators: name: Goode, Ann Eberhart
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1996

description: When the history of North Carolina's efforts to protect its water quality is written, one bright spot may be its wetland restoration efforts, and 1996 will stand out as a significant turning point. In July, the legislature enacted the Wetlands Restoration Program (WRP) (NCGS §143-214.8 - §143-214.13), a statewide effort to coordinate wetlands restoration efforts and mitigation projects' in order to make them as efficient and ecologically sound as possible. First, the WRP will identify degraded wetland areas, the restoration of which would improve water quality, wildlife habitats, flood control, or the health of fisheries. The WRP will then seek to concentrate public and private resources now spent on disconnected, scattered mitigation efforts on the identified sites, restoring the most ecologically significant areas in each of North Carolina's 17 major river basins. This program has a great deal of potential for improving the quantity and quality of North Carolina's wetlands and their valuable functions. However, in the coming year, wetlands managers will have to make numerous decisions that will determine the fate of the WRP and whether it becomes a missed opportunity or a national example of a successful wetlands management program.
Reconfigurable Intelligent Surface Enabled Joint Backscattering and Communication
Creators: name: Zhao, Jinqiu
name: Guo, Jia Ye Shuaishuai
name: Bai, Zhiquan
name: Zhou, Di
name: Mohamed, Abeer
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Reconfigurable intelligent surface (RIS) as an essential topic in the sixth-generation (6G) communications aims to enhance communication performance or mitigate undesired transmission. However, the controllability of each reflecting element on RIS also enables it to act as a passive backscatter device (BD) and transmit its information to reader devices. In this paper, we propose a RIS-enabled joint backscattering and communication (JBAC) system, where the backscatter communication coexists with the primary communication and occupies no extra spectrum. Specifically, the RIS modifies its reflecting pattern to act as a passive BD and reflect its own information back to the base station (BS) in the backscatter communication, while helping the primary communication from the BS to the users simultaneously. We further present an iterative active beamforming and reflecting pattern design to maximize the user average transmission rate of the primary communication and the goodput of the backscatter communication by solving the formulated multi-objective optimization problem (MOOP). Numerical results fully uncover the impacts of the number of reflecting elements and the reflecting patterns on the system performance, and demonstrate the effectiveness of the proposed scheme. Important practical implementation remarks have also been discussed.
description: 11 pages, 8 figures, published to IEEE TVT
A multi-model ensemble Kalman filter for data assimilation and forecasting
Creators: name: Bach, Eviatar
name: Ghil, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Data assimilation (DA) aims to optimally combine model forecasts and observations that are both partial and noisy. Multi-model DA generalizes the variational or Bayesian formulation of the Kalman filter, and we prove that it is also the minimum variance linear unbiased estimator. Here, we formulate and implement a multi-model ensemble Kalman filter (MM-EnKF) based on this framework. The MM-EnKF can combine multiple model ensembles for both DA and forecasting in a flow-dependent manner; it uses adaptive model error estimation to provide matrix-valued weights for the separate models and the observations. We apply this methodology to various situations using the Lorenz96 model for illustration purposes. Our numerical experiments include multiple models with parametric error, different resolved scales, and different fidelities. The MM-EnKF results in significant error reductions compared to the best model, as well as to an unweighted multi-model ensemble, with respect to both probabilistic and deterministic error metrics.
description: 23 pages, 10 figures
The Distinction Between Economic Development and Economic Growth: Implications for North Carolina Development Policy
Creators: name: Horowitz, Mark R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1977

description: Two widely recognized economic theories attempt to explain the process of development in an interregional context. Trade theory (and traditional neoclassical growth theory in general) posits that economic growth is both the necessary and sufficient condition for development of a less developed region. The theory of unequal exchange, on the other hand, contends that while economic growth is necessary to the development of a region, it is not a sufficient condition to bring about true development, defined as increases in the overall welfare of the region's population. This article attempts to break down the determinants of wages into an economic growth component and an economic development component as suggested by these theories. It then shows the importance of the economic development component in explaining cross-state wage differentials. The state of North Carolina has attempted to further its development through growth-related policies. The analysis found herein suggests the need for a reassessment of North Carolina's existing development policies.
Can topology reshape segregation patterns?
Creators: name: Gandica, Yerali
name: Gargiulo, Floriana
name: Carletti, Timoteo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We consider a metapopulation version of the Schelling model of segregation over several complex networks and lattice. We show that the segregation process is topology independent and hence it is intrinsic to the individual tolerance. The role of the topology is to fix the places where the segregation patterns emerge. In addition we address the question of the time evolution of the segregation clusters, resulting from different dynamical regimes of a coarsening process, as a function of the tolerance parameter. We show that the underlying topology may alter the early stage of the coarsening process, once large values of the tolerance are used, while for lower ones a different mechanism is at work and it results to be topology independent.
description: 7 figures
On Deformation Space Analogies between Kleinian Reflection Groups and Antiholomorphic Rational Maps
Creators: name: Lodge, Russell
name: Luo, Yusheng
name: Mukherjee, Sabyasachi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 37F05, 37F10, 37F32, 37F34, 30F40

description: In a previous paper, we constructed an explicit dynamical correspondence between certain Kleinian reflection groups and certain anti-holomorphic rational maps on the Riemann sphere. In this paper, we show that their deformation spaces share many striking similarities. We establish an analogue of Thurston's compactness theorem for critically fixed anti-rational maps. We also characterize how deformation spaces interact with each other and study the monodromy representations of the union of all deformation spaces.
description: 56 pages, 13 figures. Final version, to appear in Geom. Funct. Anal
title: Recognising pitfalls in assessment of tumours by Diffusion-Weighted MRI: a pictorial essay.
Creators: name: Parameswaran, Bimal
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Abdomen
subject: MR physics
subject: MR-Diffusion/Perfusion
subject: Technical aspects
subject: Imaging sequences
subject: Multidisciplinary cancer care

description: Learning Objectives Background Imaging Findings OR Procedure Details Conclusion Personal Information References
description: Learning Objectives: Discuss and illustrate the contribution to, and pitfalls of, diffusion-weighted imaging in magnetic resonance imaging (MRI) of...
Gendered Race-Kids
Creators: name: Lei, Ryan
name: Rhodes, Marjorie
name: Leshin, Rachel
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Developmental Psychology
subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This project seeks to examine the developmental emergence of intersectional social prototypes. Specifically, we seek to examine when children begin overlapping race and gender, such that Blackness is conflated with masculinity, and Asianness is conflated with femininity.
Mechanism of dynamic reorientation of cortical microtubules due to mechanical stress
Creators: name: Muratov, Alexander
name: Baulin, Vladimir A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences
subject: 92B05

description: Directional growth caused by gravitropism and corresponding bending of plant cells has been explored since 19th century, however, many aspects of mechanisms underlying the perception of gravity at the molecular level are still not well known. Perception of gravity in root and shoot gravitropisms is usually attributed to gravisensitive cells, called statocytes, which exploit sedimentation of macroscopic and heavy organelles, amyloplasts, to sense the direction of gravity. Gravity stimulus is then transduced into distal elongation zone, which is several mm far from statocytes, where it causes stretching. It is suggested that gravity stimulus is conveyed by gradients in auxin flux. We propose a theoretical model that may explain how concentration gradients and/or stretching may indirectly affect the global orientation of cortical microtubules, attached to the cell membrane and induce their dynamic reorientation perpendicular to the gradients. In turn, oriented microtubules arrays direct the growth and orientation of cellulose microfibrils, forming part of the cell external skeleton and determine the shape of the cell. Reorientation of microtubules is also observed in reaction to light in phototropism and mechanical bending, thus suggesting universality of the proposed mechanism.
description: published
Impact of Sommerfeld Effect and Bound State Formation in Simplified $t$-Channel Dark Matter Models
Creators: name: Becker, Mathias
name: Copello, Emanuele
name: Harz, Julia
name: Mohan, Kirtimaan A.
name: Sengupta, Dipan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The existence of a dark matter model with a rich dark sector could be the reason why WIMP dark matter has evaded its detection so far. For instance, colored co-annihilation naturally leads to the prediction of heavier dark matter masses. Importantly, in such a scenario the Sommerfeld effect and bound state formation must be considered in order to accurately predict the relic abundance. Based on the example of the currently widely studied $t$-channel simplified model with a colored mediator, we demonstrate the importance of considering these non-perturbative effects for correctly inferring the viable model parameters. We emphasize that a flat correction factor on the relic abundance is not sufficient in this context. Moreover, we find that parameter space thought to be excluded by direct detection experiments and LHC searches remains still viable. Additionally, we illustrate that long-lived particle searches and bound-state searches at the LHC can play a crucial role in probing such a model. We demonstrate how future direct detection experiments will be able to close almost all of the remaining windows for freeze-out production, making it a highly testable scenario.
description: 47 pages + appendices, 14 Figures
title: Hypointense lesions in hepatocyte phase of gadoxetate enhanced Liver MRI: Pitfalls - a pictorial essay.
Creators: name: Parameswaran, Bimal
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Liver
subject: Oncology
subject: MR
subject: Imaging sequences
subject: Cancer
subject: Multidisciplinary cancer care

description: Learning Objectives Background Imaging Findings OR Procedure Details Conclusion Personal Information References
description: Learning Objectives: Illustrate that lesions other than hepatic primary malignancy and metastases can be hypointense in the hepatobiliary phase [HBP] of gadoxetate [Gd EOB, Primovist] enhanced MRI of liver. Utility of other MR sequences in making the...
The F-theory geometry with most flux vacua
Creators: name: Taylor, Washington
name: Wang, Yi-Nan
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Applying the Ashok-Denef-Douglas estimation method to elliptic Calabi-Yau fourfolds suggests that a single elliptic fourfold ${\cal M}_{\rm max}$ gives rise to ${\cal O} (10^{272,000})$ F-theory flux vacua, and that the sum total of the numbers of flux vacua from all other F-theory geometries is suppressed by a relative factor of ${\cal O} (10^{-3000})$. The fourfold ${\cal M}_{\rm max}$ arises from a generic elliptic fibration over a specific toric threefold base $B_{\rm max}$, and gives a geometrically non-Higgsable gauge group of $E_8^9 \times F_4^8 \times (G_2 \times SU(2))^{16}$, of which we expect some factors to be broken by G-flux to smaller groups. It is not possible to tune an $SU(5)$ GUT group on any further divisors in ${\cal M}_{\rm max}$, or even an $SU(2)$ or $SU(3)$, so the standard model gauge group appears to arise in this context only from a broken $E_8$ factor. The results of this paper can either be interpreted as providing a framework for predicting how the standard model arises most naturally in F-theory and the types of dark matter to be found in a typical F-theory compactification, or as a challenge to string theorists to explain why other choices of vacua are not exponentially unlikely compared to F-theory compactifications on ${\cal M}_{\rm max}$.
description: 19 pages, 2 figures, v3: minor corrections, clarifications, references added
A convergent SAV scheme for Cahn--Hilliard equations with dynamic boundary conditions
Creators: name: Metzger, Stefan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35Q35, 35G31, 65M60, 65M12

description: The Cahn-Hilliard equation is one of the most common models to describe phase separation processes in mixtures of two materials. For a better description of short-range interactions between the material and the boundary, various dynamic boundary conditions for this equation have been proposed. Recently, a family of models using Cahn-Hilliard-type equations on the boundary of the domain to describe adsorption processes was analysed (cf. Knopf, Lam, Liu, Metzger, ESAIM: Math. Model. Numer. Anal., 2021). This family of models includes the case of instantaneous adsorption processes studied by Goldstein, Miranville, and Schimperna (Physica D, 2011) as well as the case of vanishing adsorption rates which was investigated by Liu and Wu (Arch. Ration. Mech. Anal., 2019). In this paper, we are interested in the numerical treatment of these models and propose an unconditionally stable, linear, fully discrete finite element scheme based on the scalar auxiliary variable approach. Furthermore, we establish the convergence of discrete solutions towards suitable weak solutions of the original model. Thereby, when passing to the limit, we are able to remove the auxiliary variables introduced in the discrete setting completely. Finally, we present simulations based on the proposed linear scheme and compare them to results obtained using a stable, non-linear scheme to underline the practicality of our scheme.
title: Diffusion Weighted Imaging MR evaluation of renal lesions: preliminary results.
Creators: name: Parameswaran, Bimal
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Cancer
subject: Stereotactic radiotherapy
subject: MR-Diffusion/Perfusion
subject: Oncology
subject: Kidney
subject: Multidisciplinary cancer care

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Diffusion Weighted Imaging [DWI] is fast becoming a major tool in the assessment of tumours with MRI as cellular tumours show restricted diffusion. There have been, however, only few attempts to assess renal tumours with diffusion [1 - 5]. This...
Top 10 Planning Events in North Carolina, 1946 – 2006
Creators: name: Godschalk, David R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: To celebrate the 60th anniversary of the establishment of the UNC-Chapel Hill Department of City and Regional Planning, this article outlines the top ten planning events, plans, and programs that have occurred in North Carolina in the past 60 years.
title: Dynamic contrast enhanced MR evaluation of inoperable renal tumours treated with stereotactic radiation: preliminary results: daunting but worthwhile?
Creators: name: Parameswaran, Bimal
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Kidney
subject: MR-Diffusion/Perfusion
subject: Radiation therapy / Oncology
subject: Multidisciplinary cancer care

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Renal carcinoma is conventionally considered “radio-resistant” to fully fractionated external beam radiotherapy (EBRT), but severely hypo fractionated EBRT in the form of stereotactic radiotherapy has renewed interest in the management of renal...
Optimal Design for Estimating the Mean Ability over Time in Repeated Item Response Testing
Creators: name: Freise, Fritjof
name: Holling, Heinz
name: Schwabe, Rainer
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62K05 (62J05, 62J02, 62P15)

description: We present general results on D-optimal designs for estimating the mean response in repeated measures growth curve models with metric outcomes. For this situation, we derive a novel equivalence theorem for checking design optimality. The motivation of this work originates from designing a study in psychological item response testing with multiple retests to measure the improvement in ability. Besides introductory linear growth curves for which analytical results can be obtained, we consider two non-linear growth curve models incorporating an increasing mean ability and a saturation effect. For these models, D-optimal designs are determined by computational methods and are validated by means of the equivalence theorem.
title: Single institution experience using drug-eluting beads and conventional embolotherapy in massive hepatocellular carcinoma.
Creators: name: Guo, Yuxin
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Toxicity
subject: Outcomes
subject: Cancer
subject: Treatment effects
subject: Embolisation
subject: Chemoembolisation
subject: MR
subject: CT
subject: Catheter arteriography
subject: Oncology
subject: Liver
subject: Interventional vascular

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Hepatocellular carcinoma (HCC) is a significant cause of mortality and morbidity accounting for more than half a million new cases and cancer-related deaths worldwide in 2008. 1 Despite preventative hepatitis B vaccinations and routine surveillance...
Turning Points in Planning Education: The UNC Experience
Creators: name: Godschalk, David R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: Planning education in the US faced major turning points during the last half of the twentieth century. It went from design to social science-based curricula, developed functional specializations beyond comprehensive planning, introduced computer technology, and responded to globalization. This article reflects on the impacts of these turning points on the Department of City and Regional Planning (DCRP) at the University of North Carolina at Chapel Hill.
title: A Diagnostic Imaging Algorithm for Children with Hip Pain
Creators: name: Humphries, Charlotte
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Musculoskeletal joint
subject: Paediatric
subject: Musculoskeletal system
subject: Conventional radiography
subject: Ultrasound
subject: MR
subject: eLearning
subject: Decision analysis
subject: Education
subject: Education and training
subject: Neoplasia
subject: Infection

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Since November 2012, General Practitioners (GPs) in Australia have been able to request Medicare-eligible hip MRIs for patients under 16 years with suspected septic arthritis, suspected slipped capital femoral epiphysis or suspected Perthes disease...
title: Hi-Resolution Imaging of Trigeminal Nerve, Microanatomy and Common Pathologies: A Journey through the Cave
Creators: name: Doherty, Louise
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Pathology
subject: Education and training
subject: Education
subject: Contrast agent-intravenous
subject: MR
subject: CT
subject: Neuroradiology brain
subject: Anatomy
subject: Neoplasia

description: Learning Objectives Background Imaging Findings OR Procedure Details Conclusion Personal Information References
description: Learning Objectives: Understanding embryology and microanatomy of the trigeminal nerve from nuclei within the brainstem to neural exit foramina of the skull base Identification of Trigeminal nerve segments and its branches(V1,V2,V3) on high resolution MRI and CT...
title: Follow up of coiled intracranial aneurysms with high resolution time-of-flight MR angiography versus digital subtraction angiography - do we need both?
Creators: name: Lane, Annah
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Comparative studies
subject: MR-Angiography
subject: Catheter arteriography
subject: Neuroradiology brain
subject: Interventional vascular
subject: Technology assessment
subject: Aneurysms

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: To compare high resolution time-of-flight MR angiography (HR-TOF-MRA) with catheter angiography (DSA) for follow up of coiled cerebral aneurysms To determine whether MRA can safely replace DSA in these patients Background Intracranial aneurysms are...
Numerical stability of the electromagnetic quasinormal and quasibound modes of Kerr black holes
Creators: name: Staicova, Denitsa
name: Fiziev, Plamen
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The proper understanding of the electromagnetic counterpart of gravity-waves emitters is of serious interest to the multimessenger astronomy. In this article, we study the numerical stability of the quasinormal modes (QNM) and quasibound modes (QBM) obtained as solutions of the Teukolsky Angular Equation and the Teukolsky Radial Equation with appropriate boundary conditions. We use the epsilon-method for the system featuring the confluent Heun functions to study the stability of the spectra with respect to changes in the radial variable. We find that the QNM and QBM are stable in certain regions of the complex plane, just as expected, while the third "spurious" spectrum was found to be numerically unstable and thus unphysical. This analysis shows the importance of understanding the numerical results in the framework of the theory of the confluent Heun functions, in order to be able to distinguish the physical spectra from the numerical artifacts.
description: 19 pages, 6 figures, final published version
Progression models for repeated measures: Estimating novel treatment effects in progressive diseases
Creators: name: Raket, Lars Lau
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: 62J02 (Primary) 62J05, 62P10 (Secondary)

description: Mixed Models for Repeated Measures (MMRMs) are ubiquitous when analyzing outcomes of clinical trials. However, the linearity of the fixed-effect structure in these models largely restrict their use to estimating treatment effects that are defined as linear combinations of effects on the outcome scale. In some situations, alternative quantifications of treatment effects may be more appropriate. In progressive diseases, for example, one may want to estimate if a drug has cumulative effects resulting in increasing efficacy over time or whether it slows the time progression of disease. This paper introduces a class of nonlinear mixed-effects models called Progression Models for Repeated Measures (PMRMs) that, based on a continuous-time extension of the categorical-time parametrization of MMRMs, enables estimation of novel types of treatment effects, including measures of slowing or delay of the time progression of disease. Compared to conventional estimates of treatment effects where the unit matches that of the outcome scale (e.g. 2 points benefit on a cognitive scale), the time-based treatment effects can offer better interpretability and clinical meaningfulness (e.g. 6 months delay in progression of cognitive decline). The PMRM class includes conventionally used MMRMs and related models for longitudinal data analysis, as well as variants of previously proposed disease progression models as special cases. The potential of the PMRM framework is illustrated using both simulated and historical data from clinical trials in Alzheimer's disease with different types of artificially simulated treatment effects. Compared to conventional models it is shown that PMRMs can offer substantially increased power to detect disease-modifying treatment effects where the benefit is increasing with treatment duration.
description: 38 pages, 13 figures
title: Gastrointestinal manifestations of cystic fibrosis in the pediatric patient: an imaging exhibit from the fetus to the young adult
Creators: name: Wang, Lily
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Gastrointestinal tract
subject: Foetal imaging
subject: MR
subject: Fluoroscopy
subject: Ultrasound
subject: Barium enema
subject: Genetic defects

description: Learning Objectives Background Imaging Findings OR Procedure Details Conclusion Personal Information References
description: Learning Objectives: To review the basic pathophysiology of cystic fibrosis (CF). Advances in molecular genetics has increased our understanding over the years To discuss the specific mechanisms by which CF affects the gastrointestinal (GI) system To show the imaging...
DySuse: Susceptibility Estimation in Dynamic Social Networks
Creators: name: Shi, Yingdan
name: Zhou, Jingya
name: Zhang, Congcong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Influence estimation aims to predict the total influence spread in social networks and has received surged attention in recent years. Most current studies focus on estimating the total number of influenced users in a social network, and neglect susceptibility estimation that aims to predict the probability of each user being influenced from the individual perspective. As a more fine-grained estimation task, susceptibility estimation is full of attractiveness and practical value. Based on the significance of susceptibility estimation and dynamic properties of social networks, we propose a task, called susceptibility estimation in dynamic social networks, which is even more realistic and valuable in real-world applications. Susceptibility estimation in dynamic networks has yet to be explored so far and is computationally intractable to naively adopt Monte Carlo simulation to obtain the results. To this end, we propose a novel end-to-end framework DySuse based on dynamic graph embedding technology. Specifically, we leverage a structural feature module to independently capture the structural information of influence diffusion on each single graph snapshot. Besides, {we propose the progressive mechanism according to the property of influence diffusion,} to couple the structural and temporal information during diffusion tightly. Moreover, a self-attention block {is designed to} further capture temporal dependency by flexibly weighting historical timestamps. Experimental results show that our framework is superior to the existing dynamic graph embedding models and has satisfactory prediction performance in multiple influence diffusion models.
description: This paper has been published in Expert Systems With Applications
Radio Properties of Young Stellar Objects in the Core of the Serpens South Infrared Dark Cloud
Creators: name: Kern, Nicholas
name: Keown, Jared
name: Tobin, John
name: Mead, Adrian
name: Gutermuth, Robert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present deep radio continuum observations of the star-forming core of the Serpens South Infrared Dark Cloud with the Karl G. Jansky Very Large Array (VLA). Observations were conducted in two bands centered at 7.25 GHz (4.14 cm) and 4.75 GHz (6.31 cm) with an rms of 8.5 and 11.1 microJy/beam, respectively. We also use 2MASS, Spitzer and Herschel data to put our radio observations in the context of young stellar populations characterized by near and far infrared observations. Within a 5 arcmin x 5 arcmin region of interest around the central cluster, we detect roughly eighteen radio sources, seven of which we determine are protostellar in nature due to their radio spectral indices and their association with infrared sources. We find evidence for a previously undetected embedded Class 0 protostar and reaffirm Class 0 protostellar classifications determined by previous millimeter wavelength continuum studies. We use our infrared data to derive mid-infrared luminosities for three of our protostellar sources and find relative agreement between the known YSO radio luminosity vs bolometric luminosity correlation. Lastly, we marginally detect an additional six radio sources at the 2-3 sigma level that lie within two arcseconds of infrared YSO candidates, providing motivation for higher sensitivity studies to clarify the nature of these sources and further probe embedded and/or low luminosity YSOs in Serpens South.
Smoothing Out the Approval Process: A Developer's Viewpoint
Creators: name: Ponticello, Stacey A.
name: Berusch, Russell
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1986

description: W. Whitfield Morrow is a president of Fraser, Morrow, Daniels & Company in Research Triangle Park, North Carolina. This development firm specializes in high quality, large-scale commercial, office, and residential projects. One of the firm's current projects, still in the development stage, is Rosemary Square, which is a public-private venture in Chapel Hill that serves as an important case study on development negotiations in North Carolina. Mr. Morrow earned his undergraduate degree from Davidson College and his MBA from Harvard University.
Primordial Stochastic Gravitational Wave Background Anisotropies: in-in Formalization and Applications
Creators: name: Dimastrogiovanni, Ema
name: Fasiello, Matteo
name: Pinol, Lucas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Primordial non-Gaussianities of the scalar(tensor)-tensor-tensor type supporting a non-trivial squeezed component are known to induce anisotropies in the stochastic gravitational wave background. We derive the explicit form of such anisotropies by making use, for the first time in this context, of the in-in formalism for cosmological correlation functions. After illustrating the general method and using it for the minimal single-field slow-roll case, we apply it to multi-field models, providing both a tree-level and a one-loop example. First, we make contact with previous results on anisotropies due to the presence of an extra spin-2 field during inflation. Secondly, we calculate the 1-loop scalar-tensor-tensor three-point function in the context of so-called supersolid inflation. The corresponding gravitational wave anisotropy is induced atop a gravitational signal that may be sufficiently large for detection.
description: v2: 35 pages, 5 figures, minor modifications, version published in JCAP
title: Discordant Sentinel Nodes in Different Lymphoscintigraphic Injection Sites for Breast Cancer
Creators: name: Freebody, John
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Nuclear medicine conventional
subject: Lymph nodes
subject: Breast
subject: Technical aspects
subject: Cancer

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Axillary sentinel lymph node (SLN) detection and biopsy are established techniques in the nodal staging of breast cancer. SLN status has both prognostic and therapeutic implications. A combination of pre-operative lymphoscintigraphy and blue dye...
title: Adult parotid tumours: A radiopathologic correlation
Creators: name: Wang, Lily
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Neoplasia
subject: Cancer
subject: Surgery
subject: MR
subject: CT
subject: Head and neck
subject: Ear / Nose / Throat
subject: Pathology

description: Learning Objectives Background Imaging Findings OR Procedure Details Conclusion Personal Information References
description: Learning Objectives: Review malignant and benign adult parotid tumours correlating with histologic...
Impact of strain-induced electronic topological transition on the thermoelectric properties of PtCoO$_2$ and PdCoO$_2$
Creators: name: Gruner, Markus Ernst
name: Eckern, Ulrich
name: Pentcheva, Rossitza
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By a combination of first-principles calculations and semi-classical Boltzmann transport theory, we investigate the effect of epitaxial strain on the electronic structure and transport properties of PtCoO$_2$ and PdCoO$_2$. In contrast to the rather uniform elastic response of both systems, we predict for PtCoO$_2$ a high sensitivity of the out-of-plane transport properties to strain, which is not present in PdCoO$_2$. At ambient temperature, we identify a considerable absolute change in the thermopower from $-107\,μ$V/K at $-5\,$\% compressive strain to $-303\,μ$V/K at $+5\,$\% tensile strain. This remarkable response is related to distinct changes of the Fermi surface, which involve the crossing of two additional bands at a moderate compressive in-plane strain. Combining our transport results with available experimental data on electrical and lattice thermal conductivity we predict a thermoelectric figure of merit of up to $ZT$$\,=\,$$0.25$ at $T$$\,=\,$$600\,$K for strained PtCoO$_2$.
title: Chest CT findings at presentation in patients with soft tissue sarcomas
Creators: name: Yu, Xavier
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Musculoskeletal soft tissue
subject: Lung
subject: CT
subject: Staging
subject: Diagnostic procedure
subject: Audit and standards
subject: Cancer
subject: Metastases

description: Purpose Methods and Materials Results Conclusion Personal Information References
description: Purpose: Soft-tissue sarcomas account for less than 1% of all malignancies, but they represent a high percentage of cancer-related deaths worldwide. Accurate pre-treatment evaluation is important for treating soft-tissue sarcomas, often establishing whether...
Satellite Monitoring of Terrestrial Plastic Waste
Creators: name: Kruse, Caleb
name: Boyda, Edward
name: Chen, Sully
name: Karra, Krishna
name: Bou-Nahra, Tristan
name: Hammer, Dan
name: Mathis, Jennifer
name: Maddalene, Taylor
name: Jambeck, Jenna
name: Laurier, Fabien
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computers and Society (cs.CY)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Plastic waste is a significant environmental pollutant that is difficult to monitor. We created a system of neural networks to analyze spectral, spatial, and temporal components of Sentinel-2 satellite data to identify terrestrial aggregations of waste. The system works at continental scale. We evaluated performance in Indonesia and detected 374 waste aggregations, more than double the number of sites found in public databases. The same system deployed across twelve countries in Southeast Asia identifies 996 subsequently confirmed waste sites. For each detected site, we algorithmically monitor waste site footprints through time and cross-reference other datasets to generate physical and social metadata. 19% of detected waste sites are located within 200 m of a waterway. Numerous sites sit directly on riverbanks, with high risk of ocean leakage.
description: 14 pages, 14 figures
Data-driven stochastic Lie transport modelling of the 2D Euler equations
Creators: name: Ephrati, Sagy
name: Cifani, Paolo
name: Luesink, Erwin
name: Geurts, Bernard
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 86-10, 76B99, 37M05

description: In this paper, we propose and assess several stochastic parametrizations for data-driven modelling of the two-dimensional Euler equations using coarse-grid SPDEs. The framework of Stochastic Advection by Lie Transport (SALT) [Cotter et al., 2019] is employed to define a stochastic forcing that is decomposed in terms of a deterministic basis (empirical orthogonal functions, EOFs) multiplied by temporal traces, here regarded as stochastic processes. The EOFs are obtained from a fine-grid data set and are defined in conjunction with corresponding deterministic time series. We construct stochastic processes that mimic properties of the measured time series. In particular, the processes are defined such that the underlying probability density functions (pdfs) or the estimated correlation time of the time series are retained. These stochastic models are compared to stochastic forcing based on Gaussian noise, which does not use any information of the time series. We perform uncertainty quantification tests and compare stochastic ensembles in terms of mean and spread. Reduced uncertainty is observed for the developed models. On short timescales, such as those used for data assimilation [Cotter et al., 2020], the stochastic models show a reduced ensemble mean error and a reduced spread. Particularly, using estimated pdfs yields stochastic ensembles which rarely fail to capture the reference solution on small time scales, whereas introducing correlation into the stochastic models improves the quality of the coarse-grid predictions with respect to Gaussian noise.
description: 18 pages, 14 figures
title: Computed Tomography (CT) findings in acute small bowel diverticulitis
Creators: name: Zhu, Jacqui
Publisher: name: The Royal Australian and New Zealand College of Radiologists
Year: 2013
Subjects: subject: Abdomen
subject: CT
subject: Diagnostic procedure
subject: Abscess
subject: Inflammation
subject: Diverticula

description: Learning Objectives Background Imaging Findings OR Procedure Details Conclusion Personal Information References
description: Learning Objectives: This educational exhibit focuses on the CT image findings in 3 patients with acute small bowel diverticulitis, two affecting the jejunum and one the distal...