cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The number of Huffman codes, compact trees, and sums of unit fractions
Creators: name: Elsholtz, Christian
name: Heuberger, Clemens
name: Prodinger, Helmut
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05A16, 05A15, 05C05, 05C30, 11D68, 68P30, 68R10, 94A10

description: The number of "nonequivalent" Huffman codes of length r over an alphabet of size t has been studied frequently. Equivalently, the number of "nonequivalent" complete t-ary trees has been examined. We first survey the literature, unifying several independent approaches to the problem. Then, improving on earlier work we prove a very precise asymptotic result on the counting function, consisting of two main terms and an error term.
Nematic order in the vicinity of a vortex in superconducting FeSe
Creators: name: Chowdhury, Debanjan
name: Berg, Erez
name: Sachdev, Subir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a phenomenological theory of the interplay between nematic order and superconductivity in the vicinity of a vortex induced by an applied magnetic field. Nematic order can be strongly enhanced in the vortex core. As a result, the vortex cores become elliptical in shape. For the case where there is weak bulk nematic order at zero magnetic field, the field-induced eccentricity of the vortex core has a slow power-law decay away from the core. Conversely, if the nematic order is field-induced, then the eccentricity is confined to the vortex core. We discuss the relevance of our results to recent scanning tunnelling microscopy experiments on FeSe (Song et al., Science 332, 1410 (2011)).
description: 23 pages, 6 figures; (v2) slightly modified title, added references; (v3) published version
"Centralized or Decentralized?": Concerns and Value Judgments of Stakeholders in the Non-Fungible Tokens (NFTs) Market
Creators: name: Xiao, Yunpeng
name: Deng, Bufan
name: Chen, Siqi
name: Zhou, Kyrie Zhixuan
name: LC, Ray
name: Zhang, Luyao
name: Tong, Xin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: Cryptography and Security (cs.CR)
subject: General Economics (econ.GN)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business
subject: J.4; K.4.1

description: Non-fungible tokens (NFTs) are decentralized digital tokens to represent the unique ownership of items. Recently, NFTs have been gaining popularity and at the same time bringing up issues, such as scams, racism, and sexism. Decentralization, a key attribute of NFT, contributes to some of the issues that are easier to regulate under centralized schemes, which are intentionally left out of the NFT marketplace. In this work, we delved into this centralization-decentralization dilemma in the NFT space through mixed quantitative and qualitative methods. Centralization-decentralization dilemma is the dilemma caused by the conflict between the slogan of decentralization and the interests of stakeholders. We first analyzed over 30,000 NFT-related tweets to obtain a high-level understanding of stakeholders' concerns in the NFT space. We then interviewed 15 NFT stakeholders (both creators and collectors) to obtain their in-depth insights into these concerns and potential solutions. Our findings identify concerning issues among users: financial scams, counterfeit NFTs, hacking, and unethical NFTs. We further reflected on the centralization-decentralization dilemma drawing upon the perspectives of the stakeholders in the interviews. Finally, we gave some inferences to solve the centralization-decentralization dilemma in the NFT market and thought about the future of NFT and decentralization.
description: Accepted by CSCW 2024
title: The imaging features of prostate cancer on CT - an often overlooked pathology
Creators: name: Pallas, Robert James
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Infection
subject: Cancer
subject: Diagnostic procedure
subject: CT
subject: Urinary Tract / Bladder
subject: Pelvis
subject: Abdomen
subject: Genitourinary

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Illustrating benign and malignant prostatic pathologies that can be identified on CT using a series of clinical cases, with emphasis on correlating CT imaging with MRI, transrectal ultrasound (TRUS) and pathology findings. Describe the tumour...
title: The influence of Whit Borland and Maurice Albertson on my research related to regime theory applied to uniform conveyance channels
title: Hydrology days 2004
titleType: AlternativeTitle
title: AGU hydrology days 2004
titleType: AlternativeTitle
Creators: name: Simons, Daryl B.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2004

description: 24th annual AGU hydrology days was held at Colorado State University on March 10-12, 2004.
description: Includes bibliographical references.
Cognitive Binding: A Computational-Modeling Analysis of a Distinction between Implicit and Explicit Memory
Creators: name: Cottrell, Garrison W.
name: Mencl, W. E.
name: Metcalfe, Janet A.
Publisher: name: Columbia University
Year: 1992
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Cognitive psychology
subject: Psychology
subject: FOS: Psychology

description: Four models were compared on repeated explicit memory (fragment cued recall) or implicit memory (fragment completion) tasks (Hayman and Tulving, 1989a). In the experiments, when given explicit instructions to complete fragments with words from a just-studied list—the explicit condition—people showed a dependence relation between the first and the second fragment targeted at the same word. However, when subjects were just told to complete the (primed) fragments—the implicit condition—stochastic independence between the two fragments resulted. Three distributed models—CHARM, a competitive-learning model, and a back-propagation model produced dependence, as in the explicit memory test. In contrast, a separate-trace model, MINERVA, showed independence, as in the implicit task. It was concluded that explicit memory is based on a highly interactive network that glues or binds together the features within the items, as do the first three models. The binding accounts for the dependence relation. Implicit memory appears to be based, instead, on separate non interacting traces.
title: Set Lasers to Cure: Radiology’s Role in Laser Ablation Surgery for Epilepsy and Brain Tumors
Creators: name: Weston, Brian
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Seizure disorders
subject: Metastases
subject: Image guided radiotherapy
subject: Surgery
subject: Intraoperative
subject: Ablation procedures
subject: MR
subject: Oncology
subject: Neuroradiology brain
subject: CNS
subject: Neuro

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: •Provide an overview of MRI thermometry and the indications for laser interstitial thermal therapy •Understand the radiologist’s role in treatment planning and evaluating treatment response •Describe immediate post-treatment changes and...
title: HAPE – High altitude pulmonary edema. What radiologists need to know.
Creators: name: Stuppner, Sigmund
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Emergency Imaging
subject: Emergency
subject: Lung
subject: Pulmonary vessels
subject: CT
subject: Digital radiography
subject: Education
subject: Venous access
subject: Blood
subject: Hypertension
subject: Pathology
subject: Not applicable
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Learning objectives To understand the pathophysiology of high-altitude pulmonary edema To illustrate typical radiological findings To describe important differential...
Angular Momentum Loss Mechanisms in Cataclysmic Variables below the Period Gap
Creators: name: Shao, Yong
name: Li, Xiang-Dong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Mass transfer in cataclysmic variables (CVs) is usually considered to be caused by angular momentum loss (AML) driven by magnetic braking and gravitational radiation (GR) above the period gap, and solely by GR below the period gap. The best-fit revised model of CV evolution recently by \citet{kbp11}, however, indicates that AML rate below the period gap is $2.47(\pm 0.22)$ times the GR rate, suggesting the existence of some other AML mechanisms. We consider several kinds of consequential AML mechanisms often invoked in the literature: isotropic wind from the accreting white dwarfs, outflows from the Langrangian points, and the formation of a circumbinary disk. We found that neither isotropic wind from the white dwarf nor outflow from the $L_1$ point can explain the extra AML rate, while ouflow from the $L_2$ point or a circumbinary disk can effectively extract the angular momentum provided that $\sim (15-45)%$ of the transferred mass is lost from the binary. A more promising mechanism is a circumbinary disk exerting gravitational torque on the binary. In this case the mass loss fraction can be as low as $\lesssim 10^{-3}$.
description: 16 pages, 6 figures, accepted for publication in ApJ
Alterations of EGFR, p53 and PTEN that mimic changes found in basal-like breast cancer promote transformation of human mammary epithelial cells
Creators: name: Pires, Maira M.
name: Hopkins, Benjamin David
name: Saal, Lao H.
name: Parsons, Ramon E.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Oncology
subject: Cytology
subject: Genetics
subject: FOS: Biological sciences

description: Breast cancer can be classified into different molecular subtypes with varying clinical and pathological characteristics. The basal-like breast cancer subtype represents one of the most aggressive and lethal types of breast cancer, and due to poor mechanistic understanding, it lacks targeted therapy. Many basal-like breast cancer patient samples display alterations of established drivers of cancer development, including elevated expression of EGFR, p53 inactivating mutations and loss of expression of the tumor suppressor PTEN; however, their contribution to human basal-like breast cancer pathogenesis remains ill-defined. Using non-transformed human mammary epithelial cells, we set out to determine whether altering EGFR, p53 and PTEN in different combinations could contribute to basal-like breast cancer progression through transformation of cells. Altering PTEN in combination with either p53 or EGFR in contrast to any of the single alterations caused increased growth of transformed colonies in soft agar. Concomitantly modifying all three genes led to the highest rate of cellular proliferation and the greatest degree of anchorage-independent colony formation. Results from our effort to engineer a model of BBC expressing alterations of EGFR, p53 and PTEN suggest that these changes are cooperative and likely play a causal role in basal-like breast cancer pathogenesis. Consideration should be given to targeting EGFR and restoring p53 and PTEN signaling simultaneously as a strategy for treatment of this subtype of breast cancer.
Environmental Predictors of Seasonal Influenza Epidemics across Temperate and Tropical Climates
Creators: name: Tamerius, James D.
name: Shaman, Jeffrey L.
name: Alonso, Wladmir J.
name: Bloom-Feshbach, Kimberly
name: Uejio, Christopher K.
name: Comrie, Andrew
name: Viboud, Cecile
Publisher: name: Columbia University
Year: 2013
Subjects: Pathology
Medicine
Environmental health

description: Human influenza infections exhibit a strong seasonal cycle in temperate regions. Recent laboratory and epidemiological evidence suggests that low specific humidity conditions facilitate the airborne survival and transmission of the influenza virus in temperate regions, resulting in annual winter epidemics. However, this relationship is unlikely to account for the epidemiology of influenza in tropical and subtropical regions where epidemics often occur during the rainy season or transmit year-round without a well-defined season. We assessed the role of specific humidity and other local climatic variables on influenza virus seasonality by modeling epidemiological and climatic information from 78 study sites sampled globally. We substantiated that there are two types of environmental conditions associated with seasonal influenza epidemics: “cold-dry” and “humid-rainy”. For sites where monthly average specific humidity or temperature decreases below thresholds of approximately 11–12 g/kg and 18–21°C during the year, influenza activity peaks during the cold-dry season (i.e., winter) when specific humidity and temperature are at minimal levels. For sites where specific humidity and temperature do not decrease below these thresholds, seasonal influenza activity is more likely to peak in months when average precipitation totals are maximal and greater than 150 mm per month. These findings provide a simple climate-based model rooted in empirical data that accounts for the diversity of seasonal influenza patterns observed across temperate, subtropical and tropical climates.
title: The ultimate guide of PI-RADS version 2.1: what has changed
Creators: name: BARTELS, RODRIGO
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Neoplasia
subject: Education and training
subject: Cancer
subject: Observer performance
subject: Education
subject: MR-Diffusion/Perfusion
subject: MR
subject: Oncology
subject: Genital / Reproductive system male
subject: Abdomen
subject: Oncologic Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To highlight the Prostate Imaging Reporting and Data System (PI-RADS) version 2.1 (v2.1) changes in interpretation criteria and technical specifications of image data acquisition; To illustrate the clarifications and revisions in image...
title: Glenoid dysplasia: anatomic and morphologic imaging features - What the radiologist needs to know
Creators: name: Almeida, Victor
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Education and training
subject: Dysplasias
subject: Diagnostic procedure
subject: Ultrasound
subject: CT
subject: Conventional radiography
subject: Paediatric
subject: Musculoskeletal joint
subject: Musculoskeletal

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the main imaging findings in computed tomography (CT),plain radiography and ultrasound (US) of patients with glenoid dysplasia secondary to obstetric brachial plexus palsy and demonstrate the relevant imagingfindings To aid and educate...
DUP Activities and Economic Theory
Creators: name: Bhagwati, Jagdish N.
name: Brecher, Richard A.
name: Srinivasan, T. N.
Publisher: name: Columbia University
Year: 1984
Subjects: Economics

description: This paper considers the theory of Directly Unproductive Profit Seeking (DUP) activities, examining its implications for economic theory. Two classes of DUP activities are distinguished: one where the DUP activity is triggered by policy which is itself exogenously specified (e.g., tariff-revenue seeking resulting from pre-specified tariff); the other where DUP activity endogenises policy fully (e.g., tariff seeking). Implications for both positive and normative argumentation in economic theory are considered in depth for both these classes of DUP activity.
title: Malignant small bowel tumors: key features for the differential diagnosis
Creators: name: Pérez García, María del Carmen
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Oncologic Imaging
subject: Gastrointestinal tract
subject: Oncology
subject: Small bowel
subject: CT-Enterography
subject: MR-Enterography
subject: Ultrasound
subject: Diagnostic procedure
subject: Cancer
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Describing the main imaging characteristics of the most frequent neoplasms of the small bowel, emphasizing their differences Reviewing the epidemiology, clinical presentations and typical findings of these...
title: Urologic malignancies in renal transplant patients revisited
Creators: name: Amaral, Lucas
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Retrospective
subject: Transplantation
subject: Neoplasia
subject: Multidisciplinary cancer care
subject: Screening
subject: Localisation
subject: Diagnostic procedure
subject: Ultrasound
subject: MR
subject: CT
subject: Urinary Tract / Bladder
subject: Oncology
subject: Kidney
subject: Genitourinary

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1. To demonstrate the role of radiological investigation of post-transplant malignancies. 2. To pictorially illustrate the imaging appearances of urinary malignancies that may affect this population. 3. To recognize that radiologists can contribute...
Total cross-section for Higgs boson hadroproduction with anomalous Standard Model interactions
Creators: name: Anastasiou, Charalampos
name: Buehler, Stephan
name: Herzog, Franz
name: Lazopoulos, Achilleas
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a new program (iHixs) which computes the inclusive Higgs boson cross-section at hadron colliders. It incorporates QCD corrections through NNLO, real and virtual electroweak corrections, mixed QCD-electroweak corrections, quark-mass effects through NLO in QCD, and finite width effects for the Higgs boson and heavy quarks. iHixs can be used to obtain the most precise cross-section values in fixed order perturbation theory in the Standard Model. In addition, it allows for a consistent evaluation of the cross-section in modified Higgs boson sectors with anomalous Yukawa and electroweak interactions as required in extensions of the Standard Model. iHixs is interfaced with the LHAPDF library and can be used with all available NNLO sets of parton distribution functions.
description: 44 pages, 13 figures, 7 tables; v3: Minor typos corrected, journal reference added
title: Etiology and MRI imaging spectrum of Moya Moya like vaculopathy
Creators: name: AGGARWAL, ANKITA
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Neuro
subject: Arteries / Aorta
subject: Neuroradiology brain
subject: Vascular
subject: MR
subject: MR-Angiography
subject: Education
subject: Ischaemia / Infarction
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To study the etiological factors of moya moya like vasculopathy. To illustrate the imaging findings of moya moya...
Second order gauge invariant measure of a tidally deformed black hole
Creators: name: Ahmadi, Nahid
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, a Lagrangian perturbation theory for the second order treatment of small disturbances of the event horizon in Schwarzchild black holes is introduced. The issue of gauge invariance in the context of general relativistic theory is also discussed. The developments of this paper is a logical continuation of the calculations presented in \cite{Vega+Poisson}, in which the first order coordinate dependance of the intrinsic and exterinsic geometry of the horizon is examined and the first order gauge invariance of the intrinsic geometry of the horizon is shown. In context of second order perturbation theory, It is shown that the rate of the expansion of the congruence of the horizon generators is invariant under a second order reparametrization; so it can be considered as a measure of tidal perturbation. A general expression for this observable, which accomodates tidal perturbations, is also presented.
Exploring urban climate change adaptation measures with CLARITY's climate service
Creators: name: de Wit, Rosmarie
name: Zuvela-Aloise, Maja
name: Kainz, Astrid
name: Goler, Robert
Publisher: name: Zenodo
Year: 2019

description: With more than 50% of the global population living in cities, urban climate change resilience is key to protect humans from the adverse effects of a changing climate. In order to translate climate change knowledge to information that can be used by policy makers or in areas such as urban planning, climate services are essential tools, bridging the gap between climate science and adaptation practitioners. The modelling methodology developed within the CLARITY project (funded as part of Horizon 2020, www.clarity-h2020.eu) is aimed at implementing a new generation of climate services specifically designed to assess adaptation measures at the city level under the effects of extreme weather events influenced by climate change. Climate indices derived from observations combined with IPCC climate projections are used to assess these effects. Using the urban climate model MUKLIMO_3 developed by the Deutscher Wetterdienst (DWD), regional climate model results are used to obtain this information on fine spatial scales (100 m), hence providing urban microclimate projections and enabling climate sensitivity simulations of adaptation measures on the urban scale. The climate adaptation strategies addressed in CLARITY are, among others, the effect of green roofs, increasing roof albedo, as well as blue (water) and green (parks, trees) infrastructure changes. Here, the climate assessment methodology developed within CLARITY will be presented in detail, and results will be shown for the Austrian city of Linz. In addition, the usage of these methods and results within the CLARITY climate service as well as the derivation of actionable information for e.g. urban planners and policy makers will be highlighted.
title: MRI imaging spectrum of malformations of cortical development
Creators: name: AGGARWAL, ANKITA
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Neuro
subject: Neuroradiology brain
subject: MR
subject: Education
subject: Congenital
subject: Developmental disease
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To study the spectrum of MRI imaging findings in malformations of cortical development. To look for additional findings in such...
Locking the frequency of lasers to an optical cavity at the $1.6 \times 10^{-17}$ relative instability level
Creators: name: Chen, Qun-Feng
name: Nevsky, Alexander
name: Schiller, Stephan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We stabilized the frequencies of two independent Nd:YAG lasers to two adjacent longitudinal modes of a high-finesse Fabry-Pérot resonator and obtained a beat frequency instability of 6.3 mHz at an integration time of 40 s. Referred to a single laser, this is $1.6\times10^{-17}$ relative to the laser frequency, and $1.3\times10^{-6}$ relative to the full width at half maximum of the cavity resonance. The amplitude spectrum of the beat signal had a FWHM of 7.8 mHz. This stable frequency locking is of importance for next-generation optical clock interrogation lasers and fundamental physics tests.
description: 14 pages, 4 figures
A different shade of hypha : cytological and molecular phylogenetic evidence for the independent rise of the hyphal habit in the class Monoblepharidomycetes (Chytridiomycota)
Creators: name: Dee, Jaclyn Marie
Publisher: name: University of British Columbia
Year: 2011

description: Once the ancestors of fungi stopped moving and instead started reaching out with hyphae, their filamentous growth made possible new variety in form and habitat. Hyphae mediated substrate colonization, absorptive nutrition, mating and reproduction. Although shared across most familiar terrestrial fungal lineages, little was known about where hyphae evolved in early fungi. In chapter one, I review the phylogenetic origins of hyphae and current understanding of the cytology of hyphal tips. Better understanding of fungal phylogeny and hyphal growth near the base of the fungal tree was needed. In Chapter 2, I investigated the phylogeny and cytology in the Class Monoblepharidomycetes (Chytridiomycota), a group of deeply diverging, zoosporic fungi, encompassing a range of body types. Species can be either crescent or rod-shaped unicells or sprawling hyphal growths. I inferred a phylogeny of the fungi based on 28S ribosomal DNA sequence data using maximum likelihood (ML) and Bayesian inference methods. I recovered the monophyly of modern fungal phyla and the topology was comparable to the most taxonomically diverse and gene–rich phylogeny of the fungi to date. I used likelihood methods to trace the origins of hyphae on my likelihood tree, concluding that hyphae arose independently in the Monoblepharidomycetes and at least three other times in the fungi. Next, I searched for evidence of convergent evolution in the cellular organization of hyphal Monoblepharidomycetes using fluorescence and transmission electron microscopy. I showed that the hyphae of Monoblepharidomycetes have a novel form with an unusual microtubule cytoskeleton and without a typical fungal Spitzenkörper. This constitutes the first report on the cytology of hyphae from the Chytridiomycota. In Chapter 3, I discuss the significance of my research and possible future directions including cytological experiments on the Monoblepharidomycetes cytoskeleton.
Tax Policy in the Presence of Emigration
Creators: name: Bhagwati, Jagdish N.
name: Hamada, Koichi
Publisher: name: Columbia University
Year: 1982
Subjects: Economics

description: This paper is a significantly revised and augmented version of an earlier, unpublished paper [Bhagwati and Hamada (1976)]. Thanks are due to NSF Grant no. SCS-80-25401, to the Ford Foundation and to the German Marshall Fund for tinancial support of the research underlying this paper. The stimulating atmosphere at the SSRC Workshop on Public Economics at Warwick, England, 1978, also must be gratefully acknowledged by Koichi Hamada. The authors are also indebted to Peter Diamond, William Baumol, Assar Lindbeck, John Wilson and other participants at the New Delhi Conference in January 1981 for their helpful suggestions. The excellent comments of two referees have led to substantial improvements in this paper.
title: General complications after gastrointestinal surgery
Creators: name: Pérez García, María del Carmen
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Abdominal Viscera
subject: Abdomen
subject: Emergency
subject: Gastrointestinal tract
subject: CT
subject: Ultrasound
subject: Complications
subject: Abscess
subject: Infection
subject: Obstruction / Occlusion
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the appearance in imaging studies of the most common postoperative complications involving the digestive tract To review the appropriate protocol to study the patient when a complication is suspected, considering the clinical...
Chaotic Type I Migration in Turbulent Discs
Creators: name: Wu, Yinhao
name: Chen, Yi-Xian
name: Lin, Douglas N. C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: By performing global hydrodynamical simulations of accretion discs with driven turbulence models, we demonstrate that elevated levels of turbulence induce highly stochastic migration torques on low-mass companions embedded in these discs. This scenario applies to planets migrating within gravito-turbulent regions of protoplanetary discs as well as stars and black holes embedded in the outskirts of active galactic nuclei (AGN) accretion discs. When the turbulence level is low, linear Lindblad torques persists in the background of stochastic forces and its accumulative effect can still dominate over relatively long timescales. However, in the presence of very stronger turbulence, classical flow patterns around the companion embedded in the disc are disrupted, leading to significant deviations from the expectations of classical Type I migration theory over arbitrarily long timescales. Our findings suggest that the stochastic nature of turbulent migration can prevent low-mass companions from monotonically settling into universal migration traps within the traditional laminar disc framework, thus reducing the frequency of three-body interactions and hierarchical mergers compared to previously expected. We propose a scaling for the transition mass ratio from classical to chaotic migration $q\propto α_R$, where $α_R$ is the Reynolds viscosity stress parameter, which can be further tested and refined by conducting extensive simulations over the relevant parameter space.
description: 6 pages, 7 figures, accepted by MNRAS Letters. Welcome any comments and suggestions!
Predictions and Primitive Ontology in Quantum Foundations: A Study of Examples
Creators: name: Allori, Valia
name: Goldstein, Sheldon
name: Tumulka, Roderich
name: Zanghi, Nino
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A major disagreement between different views about the foundations of quantum mechanics concerns whether for a theory to be intelligible as a fundamental physical theory it must involve a "primitive ontology" (PO), i.e., variables describing the distribution of matter in 4-dimensional space-time. In this paper, we illustrate the value of having a PO. We do so by focussing on the role that the PO plays for extracting predictions from a given theory and discuss valid and invalid derivations of predictions. To this end, we investigate a number of examples based on toy models built from the elements of familiar interpretations of quantum theory.
description: 28 pages LaTeX, no figures; v2 minor improvements
Using Built-In Domain-Specific Modeling Support to Guide Model-Based Test Generation
Creators: name: Kanstrén, Teemu
name: Puolitaival, Olli-Pekka
Publisher: name: arXiv
Year: 2012
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: We present a model-based testing approach to support automated test generation with domain-specific concepts. This includes a language expert who is an expert at building test models and domain experts who are experts in the domain of the system under test. First, we provide a framework to support the language expert in building test models using a full (Java) programming language with the help of simple but powerful modeling elements of the framework. Second, based on the model built with this framework, the toolset automatically forms a domain-specific modeling language that can be used to further constrain and guide test generation from these models by a domain expert. This makes it possible to generate a large set of test cases covering the full model, chosen (constrained) parts of the model, or manually define specific test cases on top of the model while using concepts familiar to the domain experts.
description: In Proceedings MBT 2012, arXiv:1202.5826
title: Lesions affecting the sphenoid sinus: A wide differential diagnosis
Creators: name: De Llano Ibisate, Loreto Ana
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Metastases
subject: Infection
subject: Cancer
subject: Diagnostic procedure
subject: Computer Applications-Detection, diagnosis
subject: Comparative studies
subject: MR
subject: CT
subject: Head and neck
subject: Head and Neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Review the most frequent pathologies wich can affect the sphenoid sinus and illustrate them with cases seen in our radiology...
Fluctuations and Criticality of a Granular Solid-Liquid-like Phase Transition
Creators: name: Castillo, Gustavo
name: Mujica, Nicolás
name: Soto, Rodrigo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present an experimental study of density and order fluctuations in the vicinity of the solid-liquid-like transition that occurs in a vibrated quasi-two-dimensional granular system. The two-dimensional projected static and dynamic correlation functions are studied. We show that density fluctuations, characterized through the structure factor, increase in size and intensity as the transition is approached, but they do not change significantly at the transition itself. The dense, metastable clusters, which present square symmetry, also increase their local order in the vicinity of the transition. This is characterized through the bond-orientational order parameter $Q_4$, which in Fourier space obeys an Ornstein-Zernike behavior. Depending on filling density and vertical height, the transition can be of first or second order type. In the latter case, the associated correlation length $ξ_4$, relaxation time $τ_4$, zero $k$ limit of $Q_4$ fluctuations (static susceptibility), the pair correlation function of $Q_4$, and the amplitude of the order parameter obey critical power laws, with saturations due to finite size effects. Their respective critical exponents are $ν_{\bot} = 1$, $ν_{||} = 2$, $γ= 1$, $η=0.67$, and $β=1/2$, whereas the dynamical critical exponent $z = ν_{||}/ν_{\bot} = 2$. These results are consistent with model C of dynamical critical phenomena, valid for a non-conserved critical order parameter (bond-orientation order) coupled to a conserved field (density).
description: 5 pages, 3 figures, to be published in Physical Review Letters
Stimulus-dependent maximum entropy models of neural population codes
Creators: name: Granot-Atedgi, Einat
name: Tkačik, Gašper
name: Segev, Ronen
name: Schneidman, Elad
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Neural populations encode information about their stimulus in a collective fashion, by joint activity patterns of spiking and silence. A full account of this mapping from stimulus to neural activity is given by the conditional probability distribution over neural codewords given the sensory input. To be able to infer a model for this distribution from large-scale neural recordings, we introduce a stimulus-dependent maximum entropy (SDME) model---a minimal extension of the canonical linear-nonlinear model of a single neuron, to a pairwise-coupled neural population. The model is able to capture the single-cell response properties as well as the correlations in neural spiking due to shared stimulus and due to effective neuron-to-neuron connections. Here we show that in a population of 100 retinal ganglion cells in the salamander retina responding to temporal white-noise stimuli, dependencies between cells play an important encoding role. As a result, the SDME model gives a more accurate account of single cell responses and in particular outperforms uncoupled models in reproducing the distributions of codewords emitted in response to a stimulus. We show how the SDME model, in conjunction with static maximum entropy models of population vocabulary, can be used to estimate information-theoretic quantities like surprise and information transmission in a neural population.
description: 11 pages, 7 figures
title: Traumatic meniscus injuries: what every radiologist should know
Creators: name: Jendoubi, Salma
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Athletic injuries
subject: Arthrography
subject: MR
subject: CT
subject: Trauma
subject: Musculoskeletal joint
subject: Musculoskeletal

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: After a reminder of menisci’s anatomy and variants; we will illustrate meniscus injuries and some misleading...
Contents
Creators: name: H, C
Publisher: name: Critical Hermeneutics
Year: 2020

description: The issue is a result of the research programme about ‘The problem of indeterminacy. Meaning, knowledge, action’ (‘Il problema dell’indeterminatezza. Significato, conoscenza, azione’, PRIN 2015, national coordinator Luigi Perissinotto). The project was developed by a Cagliari research team that worked on the indeterminacy problem concerning the linguistic, conceptual and interpretative mechanisms actively involved in the construction of the images of the past. These concepts and other themes were the subject of a conference in May 2019.
description: Critical Hermeneutics, V. 4 N. special II (2020): Unchangeability of the Past: Human and Natural Sciences in Comparison
Correspondence
Creators: name: Bhagwati, Jagdish N.
name: Pollock, Earl F.
name: Holmquist, Scott
name: Rubens, Jim
name: Regan, F. E.
Publisher: name: Columbia University
Year: 1996
Subjects: Economics

description: Presents letters to the editor referencing articles and topics discussed in previous issues. Comment on Louis Menand's review of the book "The Collected Works of Justice Holmes," in the article "Bet-Tabilitarianism"; Discussion on issues related to urban life in the article "It's Better in Europe"; Details of the governing coalition of the Republican Party in the article "Meltdown."
Bessel-Weighted Asymmetries in Semi Inclusive Deep Inelastic Scattering
Creators: name: Boer, Daniel
name: Gamberg, Leonard
name: Musch, Bernhard
name: Prokudin, Alexei
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The concept of weighted asymmetries is revisited for semi-inclusive deep inelastic scattering. We consider the cross section in Fourier space, conjugate to the outgoing hadron's transverse momentum, where convolutions of transverse momentum dependent parton distribution functions and fragmentation functions become simple products. Individual asymmetric terms in the cross section can be projected out by means of a generalized set of weights involving Bessel functions. Advantages of employing these Bessel weights are that they suppress (divergent) contributions from high transverse momentum and that soft factors cancel in (Bessel-) weighted asymmetries. Also, the resulting compact expressions immediately connect to previous work on evolution equations for transverse momentum dependent parton distribution and fragmentation functions and to quantities accessible in lattice QCD. Bessel weighted asymmetries are thus model independent observables that augment the description and our understanding of correlations of spin and momentum in nucleon structure.
description: Matches published version, JHEP style, 36 pages and 2 figures, minor corrections
LiveNVS: Neural View Synthesis on Live RGB-D Streams
Creators: name: Fink, Laura
name: Rückert, Darius
name: Franke, Linus
name: Keinert, Joachim
name: Stamminger, Marc
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences
subject: I.3.2; I.3.6; I.4.5

description: Existing real-time RGB-D reconstruction approaches, like Kinect Fusion, lack real-time photo-realistic visualization. This is due to noisy, oversmoothed or incomplete geometry and blurry textures which are fused from imperfect depth maps and camera poses. Recent neural rendering methods can overcome many of such artifacts but are mostly optimized for offline usage, hindering the integration into a live reconstruction pipeline. In this paper, we present LiveNVS, a system that allows for neural novel view synthesis on a live RGB-D input stream with very low latency and real-time rendering. Based on the RGB-D input stream, novel views are rendered by projecting neural features into the target view via a densely fused depth map and aggregating the features in image-space to a target feature map. A generalizable neural network then translates the target feature map into a high-quality RGB image. LiveNVS achieves state-of-the-art neural rendering quality of unknown scenes during capturing, allowing users to virtually explore the scene and assess reconstruction quality in real-time.
description: main paper: 8 pages, total number of pages: 15, 13 figures, to be published in SIGGRAPH Asia 2023 Conference Papers; edits: link was fixed
Past and Future Determinacy According to Nicolai Hartmann
Creators: name: Pinna, Simonluca
Publisher: name: Critical Hermeneutics
Year: 2020

description: Nicolai Hartmann’s thesis of the equal determinacy of past and future is explained in the context of the theory of time appearing in his ontological tetralogy. In particular, the notions of past and future are treated as aspects of real time in its opposition to time as an ideality. Also, the relation of time and modality in the real sphere is analyzed assuming that it is of complementarity. In all of this, Hartmann’s view is synthetically compared to other theories of time in contemporary philosophy.
description: Critical Hermeneutics, V. 4 N. special II (2020): Unchangeability of the Past: Human and Natural Sciences in Comparison
title: Breast Angiosarcomas: a pictorial review
Creators: name: Santos, João
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Tissue characterisation
subject: Neoplasia
subject: Multidisciplinary cancer care
subject: Radiation therapy / Oncology
subject: Radiation effects
subject: Education
subject: Ultrasound
subject: MR
subject: Mammography
subject: Oncology
subject: Management
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The purpose of this exhibit is: - To review what is known about the presentation and diagnostic of breast angiosarcoma (AS); - To distinguish the characteristics of the primary and secondary form; - To discuss the relationship of previous radiation...
History and Changeability of the Past
Creators: name: Flores, Marcello
Publisher: name: Critical Hermeneutics
Year: 2020

description: The problem of truth, from the point of view of a historian, arises in clearly different forms compared to those of scientists and probably also of social scholars of other disciplines. History is a narration of past events, but this narration is subject to an arbitrary selection of its parts, its documentation, the facts that make up the event under discussion. History is organized on the basis of documents, testimonies and biographical elements, but also of considerations on the structures of power, on the articulations of society and on the forms of political regimes. As the history of the 1900s amply demonstrates – of which the Shoah and the Nazi destruction of the Jews as well as Soviet communism, the history of Italy and McCarthyism in the United States, as well as the genocides of the 1990s, are touched on in this article – the interpretation of the events involved the greatest difficulty in identifying a recognized and shared truth.
description: Critical Hermeneutics, V. 4 N. special II (2020): Unchangeability of the Past: Human and Natural Sciences in Comparison
First year university: exploring the role of emotional intelligence and resiliency on student subjective well-being
Creators: name: Nugent, Sarah Michelle
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 51-63
description: Includes copy of ethics approval. Original copy with original Partial Copyright Licence.
description: Students entering university or college from high school face a variety of stressors. Furthermore, the highest rate of post-secondary dropout is within first year university (Shaienks et al., 2008). Past studies have concluded that while cognitive factors play a role in academic success, they do not have great predictive validity of student adjustment and retention in post-secondary education. Thus, this study examined the role of noncognitive factors in first year university students. First year university students enrolled in first and second semesters completed questionnaires measuring emotional intelligence (EI), aspects ofresiliency (i.e., sense of mastery), and subjective well-being. Using a cross-sectional design, it was found that EI was significantly different between students in first semester and second semester while resiliency and subjective well-being revealed no significant differences. In addition, multiple regression analyses suggest that sense of mastery may be a stronger predictor than EI in predicting first year student subjective well-being.
Foundation and generalization of the expansion by regions
Creators: name: Jantzen, Bernd
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The "expansion by regions" is a method of asymptotic expansion developed by Beneke and Smirnov in 1997. It expands the integrand according to the scaling prescriptions of a set of regions and integrates all expanded terms over the whole integration domain. This method has been applied successfully to many complicated loop integrals, but a general proof for its correctness has still been missing. This paper shows how the expansion by regions manages to reproduce the exact result correctly in an expanded form and clarifies the conditions on the choice and completeness of the considered regions. A generalized expression for the full result is presented that involves additional overlap contributions. These extra pieces normally yield scaleless integrals which are consistently set to zero, but they may be needed depending on the choice of the regularization scheme. While the main proofs and formulae are presented in a general and concise form, a large portion of the paper is filled with simple, pedagogical one-loop examples which illustrate the peculiarities of the expansion by regions, explain its application and show how to evaluate contributions within this method.
description: 84 pages; v2: comment on scaleless integrals added to conclusions, version published in JHEP