cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: "Building the bigger we" for climate justice
title: Building the bigger we for climate justice
titleType: AlternativeTitle
Creators: name: Goloff, Benjamin Max
Publisher: name: Mountain Scholar
Year: 2017
Subjects: climate justice
Climate Justice Alliance
CJA
grassroots movements
People's Climate March

description: Presented at the Environmental justice in the Anthropocene symposium held on April 24-25, 2017 at the Lory Student Center, Colorado State University, Fort Collins Colorado. This symposium aims to bring together academics (faculty and graduate students), independent researchers, community and movement activists, and regulatory and policy practitioners from across disciplines, research areas, perspectives, and different countries. Our overarching goal is to build on several decades of EJ research and practice to address the seemingly intractable environmental and ecological problems of this unfolding era. How can we explore EJ amongst humans and between nature and humans, within and across generations, in an age when humans dominate the landscape? How can we better understand collective human dominance without obscuring continuing power differentials and inequities within and between human societies? What institutional and governance innovations can we adopt to address existing challenges and to promote just transitions and futures?
description: Includes bibliographical references.
title: Common pitfalls and false positive results on chest PET-CT in oncologic imaging.
Creators: name: Casanovas Navarro, Eduard
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: Normal variants
subject: Biopsy
subject: PET-CT
subject: Oncology
subject: Nuclear medicine
subject: Hybrid Imaging
subject: Hybrid, Molecular and Translational Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the most relevant false positive cases in PET/TC scans when staging cancer patients after initial diagnosis and in the assessment of treatment response. To describe the criteria to avoid these potential...
Einstein relation in superdiffusive systems
Creators: name: Gradenigo, Giacomo
name: Sarracino, Alessandro
name: Villamaina, Dario
name: Vulpiani, Angelo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the Einstein relation between diffusion and response to an external field in systems showing superdiffusion. In particular, we investigate a continuous time Levy walk where the velocity remains constant for a time τ, with distribution P(τ) τ^{-g}. At varying g the diffusion can be standard or anomalous; in spite of this, if in the unperturbed system a current is absent, the Einstein relation holds. In the case where a current is present the scenario is more complicated and the usual Einstein relation fails. This suggests that the main ingredient for the breaking of the Einstein relation is not the anomalous diffusion but the presence of a mean drift (current).
description: 10 pages, 3 figures
title: Imaging on Cardiac Hydatid Cyst: Report of Five Cases
Creators: name: BAYRAKTAR, EZGİ SUAT
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Retrospective
subject: Infection
subject: Cysts
subject: Cardiac Assist Devices
subject: Contrast agent-intravenous
subject: MR
subject: CT
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To learn MRI findings of cardiac hydatid cyst. To discuss companion hydatid cyst manifestations which can help the diagnosis. To knowhow other modalities can help reaching the diagnosis. To differanciate cardiac hydatid cyst from heart...
title: Non-specific pulmonary findings on CTA in patients with acute pulmonary embolism
Creators: name: Oganesyan, Anait
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Emergency Imaging
subject: Lung
subject: Pulmonary vessels
subject: CT
subject: CT-Angiography
subject: Diagnostic procedure
subject: Acute
subject: Embolism / Thrombosis
subject: Obstruction / Occlusion
subject: Retrospective
subject: Diagnostic or prognostic study
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: -To demonstrate the types and occurrence of nonspecific pulmonary findings on CTA in patients with acute pulmonary embolism (PE). -To understand the sources ofthese findings and approach to...
title: Gallstone illeus: evaluation though series of cases
Creators: name: Tomic, Tijana
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Obstruction / Occlusion
subject: Fistula
subject: Calcifications / Calculi
subject: Contrast agent-oral
subject: Contrast agent-intravenous
subject: Barium meal
subject: Ultrasound
subject: CT
subject: Conventional radiography
subject: Small bowel
subject: Gastrointestinal tract
subject: Biliary Tract / Gallbladder
subject: GI Tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Describe the types and features of gallstone ileus, clinical presentations and diagnostic modalities that can be used for evaluation of this condition, though cases of 5 patients Review imaging features of gall stone ileus: plain abdominal...
title: Fetal lung imaging: how to reason?
Creators: name: Dkhil, Insaf
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Paediatric
subject: Foetal imaging
subject: Thorax
subject: MR
subject: Ultrasound
subject: Education
subject: Foetus
subject: Retrospective
subject: Case-control study
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: -To review embryological phases of lung development. -To illustrate through a series of cases the typical and atypical features of pathological fetal lung development. -To establish a chart of imaging analysis of a fetal lung...
title: PACS Replacement strategy : From Decision To Implementation
Creators: name: tocino, Irena
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Economics
subject: Computer Applications-General
subject: PACS
subject: Computer applications
subject: Artificial Intelligence
subject: Imaging Informatics
subject: Observational
subject: Multicentre study

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To outline the factors influencing decisions to replace an existing PACS To describe the choices of PACS architecture including pros and cons To guide a Health Care System considering PACS replacement through the steps and process leading to...
Fractional topological phase in one-dimensional flatbands with nontrivial topology
Creators: name: Guo, Huaiming
name: Shen, Shun-Qing
name: Feng, Shiping
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show the existence of the fractional topological phase (FTP) in a one-dimensional interacting fermion model using exact diagonalization, in which the non-interacting part has flatbands with nontrivial topology. In the presence of the nearest-neighbouring interaction $V_{1}$, the FTP at filling factor $ν=1/3$ appears. It is characterized by the three-fold degeneracy and the quantized total Berry phase of the ground-states. The FTP is destroyed by a next-nearest-neighbouring interaction $V_{2}$ and the phase diagrams in the $(V_{1},V_{2})$ plane is determined. We also present a physical picture of the phase and discuss its existence in the nearly flatband. Within the picture, we argue that the FTP at other filling factors can be generated by introducing proper interactions. The present study contributes to a systematic understanding of the FTPs and can be realized in cold-atom experiments.
description: 5 pages, 5 figures. To appear in Phys. Rev. B
title: The role of ultrasound in acute pyelonephritis in children
Creators: name: Granadas, Joana
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Paediatric
subject: Kidney
subject: Paediatric
subject: Urinary Tract / Bladder
subject: Ultrasound
subject: Education
subject: Education and training
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To discuss the role of ultrasound in the evaluation of children with suspected acute pyelonephritis. To review the normal ultrasound appearance of children’s urinary tract. To illustrate the sonographic appearances of acute pyelonephritis, its...
The role of lighter and heavier embedded nanoparticles on the thermal conductivity of SiGe alloys
Creators: name: Kundu, A.
name: Mingo, N.
name: Broido, D. A.
name: Stewart, D. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have used an atomistic {\it ab initio} approach with no adjustable parameters to compute the lattice thermal conductivity of Si$_{0.5}$Ge$_{0.5}$ with a low concentration of embedded Si or Ge nanoparticles of diameters up to 4.4 nm. Through exact Green's function calculation of the nanoparticle scattering rates, we find that embedding Ge nanoparticles in $\text{Si}_{0.5}\text{Ge}_{0.5}$ provides 20% lower thermal conductivities than embedding Si nanoparticles. This contrasts with the Born approximation which predicts an equal amount of reduction for the two cases, irrespective of the sign of the mass difference. Despite these differences, we find that the Born approximation still performs remarkably well, and it permits investigation of larger nanoparticle sizes, up to 60 nm in diameter, not feasible with the exact approach.
description: 13 pages, 5 figures, Accepted for publication in Physical Review B
title: MRI in the diagnosis of central nervous system tuberculosis
Creators: name: Mukhametshina, Elena
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Neuro
subject: CNS
subject: Contrast agents
subject: Head and neck
subject: MR
subject: Contrast agent-intravenous
subject: Cerebrospinal fluid
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Assessment of the diagnostic effectiveness of MRI tomography in the diagnosis of...
The minimal length uncertainty and the quantum model for the stock market
Creators: name: Pedram, Pouria
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Finance (q-fin.GN)
subject: Quantum Physics (quant-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We generalize the recently proposed quantum model for the stock market by Zhang and Huang to make it consistent with the discrete nature of the stock price. In this formalism, the price of the stock and its trend satisfy the generalized uncertainty relation and the corresponding generalized Hamiltonian contains an additional term proportional to the fourth power of the trend. We study a driven infinite quantum well where information as the external field periodically fluctuates and show that the presence of the minimal trading value of stocks results in a positive shift in the characteristic frequencies of the quantum system. The connection between the information frequency and the transition probabilities is discussed finally.
description: 13 pages, no figure
Thermal switching rate of a ferromagnetic material with uniaxial anisotropy
Creators: name: Taniguchi, Tomohiro
name: Imamura, Hiroshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The field dependence of the thermal switching rate of a ferromagnetic material with uniaxial anisotropy was studied by solving the Fokker-Planck equation. We derived the analytical expression of the thermal switching rate using the mean first-passage time approach, and found that Brown's formula [Phys. Rev. 130, 1677 (1963)] is applicable even in the low barrier limit by replacing the attempt frequency with the proper factor which is expressed by the error function.
description: 5 pages, 2 figures
The relational world of journalists who report on traumatic events
Creators: name: Stevens, Alison Mary
Publisher: name: University of British Columbia
Year: 2011

description: A growing body of research explores the impact of reporting on traumatic events for journalists. Current research has not focused on early attachment histories or included the relational worlds of journalists in regard to the trauma they witness. The purpose of this study is to provide a detailed portrayal of how journalists who report on trauma understand their relational world both in how earlier relationships contribute to who they are now and what happens in relationships when they are exposed to traumatic events. In this study using a narrative approach and the Life Story interview method the stories of nine journalists who have had experience reporting on traumatic events were told. From their narratives, the methods for thematic analysis of Atkinson, 1998; Lieblich, Tuval-Mashiach, & Zilber, 1998; and Riessman, 1993, 2008 were used to identify relational patterns. Six themes emerged including close family relationships in early life, family relationships being central to well being in adult life, juggling three relational spheres (private life, professional life, relationships with people they report about), finding support for managing trauma, making a difference in human lives through reporting on trauma, and the impact of reporting on traumatic events on relationships. Based on the results of this study recommendations are made for journalists who report on traumatic events at an individual and organizational level. Implications for practice and for further research are also discussed.
An Introduction to Signal Processing for Speech
Creators: name: Ellis, Daniel P. W.
Publisher: name: Columbia University
Year: 2008
Subjects: subject: Communication
subject: Mathematics
subject: FOS: Mathematics

description: The formal tools of signal processing emerged in the mid twentieth century when electronics gave us the ability to manipulate signals — time-varying measurements — to extract or rearrange various aspects of interest to us, i.e., the information in the signal. The core of traditional signal processing is a way of looking at the signals in terms of sinusoidal components of differing frequencies (the Fourier domain), and a set of techniques for modifying signals that are most naturally described in that domain, i.e., filtering. Although originally developed using analog electronics, since the 1970s signal processing has more and more been implemented on computers in the digital domain, leading to some modifications to the theory without changing its essential character. This chapter aims to give a transparent and intuitive introduction to the basic ideas of the Fourier domain and filtering, and connects them to some of the common representations used in speech science, including the spectrogram and cepstral coefficients. We assume the absolute minimum of prior technical background, which will naturally be below the level of many readers; however, there may be some value in taking such a ground-up approach even for those for whom much of the material is review.
title: Primary Pulmonary Lymphoma: a rare entity that every radiologist should be aware of
Creators: name: Charalambous, Christofis
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Lymphoma
subject: Contrast agent-intravenous
subject: Biopsy
subject: CT-High Resolution
subject: CT
subject: Oncology
subject: Lung
subject: Chest

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To present the most common types of primary pulmonary lymphoma To recognize the broad spectrum of radiologic manifestations on CT To discuss the possible differential...
title: Arthritides: find your feet
Creators: name: Morgado, Margarida
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Musculoskeletal
subject: Extremities
subject: Musculoskeletal joint
subject: Musculoskeletal system
subject: Conventional radiography
subject: Digital radiography
subject: Education
subject: Arthritides
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: - To present a practical integrated approach to feet radiograph interpretation when arthritis is suspected; - To describe and illustrate the typical plain radiographic features of arthritides that affect the foot with a brief mention of their...
title: MRI of rare cardiac metastases. Case reviews from Slovak CMR centres.
Creators: name: Polakova Mistinova, Jana
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Case-control study
subject: Retrospective
subject: Metastases
subject: Education
subject: MR
subject: Oncology
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The aim of this case review was to increase awareness of existence of secondary cardiac tumours and to give short review of this pathology. We are presenting six cases of rare metastatic cardiac tumours (MCT) from four CMR centres in Slovakia. We...
title: Meningitis and meningoencephalitis in the pediatric population: What to look for?
Creators: name: Jiménez López, María Ángeles
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Diagnostic or prognostic study
subject: Not applicable
subject: Inflammation
subject: Infection
subject: Epidemiology
subject: Computer Applications-General
subject: Complications
subject: Ultrasound
subject: MR
subject: Paediatric
subject: Neuroradiology brain
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Identify radiological findings characteristic of the most frequent CNS infections in pediatric age, facilitating their diagnosis, allowing to assess the response to treatment and the detection of possible...
title: When the liver hits the brain: What can we see in acquired hepatocerebral degeneration?
Creators: name: Pinto, Catarina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Neuro
subject: CNS
subject: MR
subject: Education
subject: Education and training
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To understand the imagiologic presentation of acquired hepatocerebral degeneration. To distinguish between presentations with or without hepatic encephalopathy. To recognize the dynamic MRI changes after...
title: Imaging findings of ingested foreign bodies
Creators: name: Novak, Dejan
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Foreign bodies
subject: Diagnostic procedure
subject: Ultrasound
subject: Digital radiography
subject: CT
subject: Gastrointestinal tract
subject: Abdomen
subject: GI Tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To briefly illustrate the diverse spectrum of different ingested foreign bodies (IFB) through radiological...
title: Comparing convolutional neural networks for medical image interpretation based on eye movement analysis
Creators: name: Kamikawa, Satoshi
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Image verification
subject: Diagnostic procedure
subject: Digital radiography
subject: Lung
subject: Artificial Intelligence and Machine Learning

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Medical image interpretation skills are highly specialized and difficult to acquire within a limited training period. The goal of this study is to bring inexperienced clinical radiological trainees closer to experienced professionals effectively. To...
Sustainable commons governance and climate justice: ecofeminist insights and indigenous traditions
Creators: name: Perkins, Patricia E.
Publisher: name: Mountain Scholar
Year: 2017
Subjects: climate justice
community resilience
commons
community development
climate risk reduction
extreme weather events
social capital
participatory governance
ecological economics
political ecology
ecofeminism
indigenous governance
social learning
subsistence

description: Presented at the Environmental justice in the Anthropocene symposium held on April 24-25, 2017 at the Lory Student Center, Colorado State University, Fort Collins Colorado. This symposium aims to bring together academics (faculty and graduate students), independent researchers, community and movement activists, and regulatory and policy practitioners from across disciplines, research areas, perspectives, and different countries. Our overarching goal is to build on several decades of EJ research and practice to address the seemingly intractable environmental and ecological problems of this unfolding era. How can we explore EJ amongst humans and between nature and humans, within and across generations, in an age when humans dominate the landscape? How can we better understand collective human dominance without obscuring continuing power differentials and inequities within and between human societies? What institutional and governance innovations can we adopt to address existing challenges and to promote just transitions and futures?
description: Includes bibliographical references.
description: This paper brings together North American and global examples of traditional and new forms of "commons" which help to meet local subsistence needs and develop communities' social, political and economic resilience in the face of climate change. Commons governance represents a dynamic means of risk reduction which addresses the shortcomings of both market and state-oriented governance and is becoming increasingly relevant as climate change threatens human subsistence worldwide. Indigenous traditions and leadership are central to this (re-)emergent phenomenon. Drawing on the literatures of ecological economics, political ecology, and ecofeminism as well as the work of Elinor Ostrom to situate these ideas, this paper sets out a framework for assessing communities' climate resilience from an equity standpoint, in terms of their commons-readiness. Some of the indicators involved in this framework include each community's openness/boundaries, historical experiences and aptitudes with commons, indigenous leaders and integration of indigenous culture, social networks and social learning, political and economic autonomy, income distribution, and women's empowerment. Climate justice -- improving the local and global equity of climate change impacts and procedures – advances in parallel with commons development; this paper also discusses scale issues related to local, regional, watershed-based, international and global commons and climate justice.
title: Utility of PET / CT in the monitoring of differentiated thyroid cancer
Creators: name: Ulloa Vallejo, Catherine
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Cancer
subject: Efficacy studies
subject: Comparative studies
subject: PET-CT
subject: Nuclear medicine conventional
subject: Thyroid / Parathyroids
subject: Oncology
subject: Nuclear medicine
subject: Oncologic Imaging

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The incidence of thyroid carcinoma has gradually increased in recent years due to the fact that imaging studies have contributed to the detection of subclinical stages, in our community the seventh neoplasm in order of frequency according to data...
title: Diagnostic value of SPECT-CT imaging in evaluation of bone allograft viability.
Creators: name: Yermakovich-Sauchuk, Yuliya
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Musculoskeletal
subject: Musculoskeletal bone
subject: Trauma
subject: SPECT-CT
subject: Diagnostic procedure
subject: Grafts
subject: Transplantation
subject: Trauma
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To assess the diagnostic value ofsingle photon emission computed tomography-computed tomography (SPECT/CT) imaging in patients after reconstructivebone surgery with using bone allografts. Bone allografts are often used in reconstructive femur...
title: Drainage of high risk post-surgical intra-abdominal collections using "drain within drain" technique
Creators: name: LENIN, PRADHAP
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Prospective
subject: Abscess
subject: Abscess delineation
subject: CT
subject: Abdomen
subject: Interventional Radiology

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the imaging findings, indication criteria and the materials used in drainage technique. To describe the steps of procedure as well as the techniques involved in image guided drainage of post-surgical infected collection using the existing...
title: Bombyx mori silk/titania/gold hybrid materials for photocatalytic water splitting
title: combining renewable raw materials with clean fuels
titleType: Subtitle
Creators: name: Krüger, Stefanie
name: Schwarze, Michael
name: Baumann, Otto
name: Günter, Christina
name: Bruns, Michael
name: Kübel, Christian
name: Szabó, Dorothée Vinga
name: Meinusch, Rafael
name: Zea Bermudez, Verónica de
name: Taubert, Andreas
Publisher: name: Universität Potsdam
Year: 2019

description: The synthesis, structure, and photocatalytic water splitting performance of two new titania (TiO 2 )/gold(Au)/Bombyx mori silk hybrid materials are reported. All materials are monoliths with diameters of up to ca. 4.5 cm. The materials are macroscopically homogeneous and porous with surface areas between 170 and 210 m 2/g. The diameter of the TiO 2 nanoparticles (NPs) – mainly anatase with a minor fraction of brookite – and the Au NPs are on the order of 5 and 7–18 nm, respectively. Addition of poly(ethylene oxide) to the reaction mixture enables pore size tuning, thus providing access to different materials with different photocatalytic activities. Water splitting experiments using a sunlight simulator and a Xe lamp show that the new hybrid materials are effective water splitting catalysts and produce up to 30 mmol of hydrogen per 24 h. Overall the article demonstrates that the combination of a renewable and robust scaffold such as B. mori silk with a photoactive material provides a promising approach to new monolithic photocatalysts that can easily be recycled and show great potential for application in lightweight devices for green fuel production.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 581
title: The diagnostic value of 18F-FDG-PET/CT in carcinoma of unknown primary origin
Creators: name: Paddubny, Kiryl
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Retrospective
subject: Cancer
subject: Molecular imaging
subject: PET-CT
subject: Oncology
subject: Hybrid Imaging
subject: Hybrid, Molecular and Translational Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The aim of this study was to determine the diagnostic value and potential clinical usefullness of 18F-FDG PET/CT in identification of the sourse of metatases in patients with carcinoma of unknown primary origin...
title: HiN : Alexander von Humboldt im Netz
Creators: name: Clark, Rex
name: von Engelhardt, Wolf
name: Kortum, Gerhard
name: Leitner, Ulrike
name: Navas Sierra, Jose Alberto
name: Rebok, Sandra
name: Zeuske, Michael
Publisher: name: Universitätsverlag Potsdam
Year: 2019

description: Inhalt:

- Rex Clark: If Humboldt had a Laptop. Moving Knowledge Networks from Print to Digital Media
- Wolf von Engelhardt: Goethe und Alexander von Humboldt - Bau und Geschichte der Erde
- Gerhard Kortum: Humboldt der Seefahrer und sein Marinechronometer. Ein Beitrag zur Geschichte der Nautik und Meereskunde
- Ulrike Leitner: Unbekannte Venezuela-Karten Alexander von Humboldts
- Jose Alberto Navas-Sierra: Comercio y reinserción internacional: los “casos” latinoamericano y colombiano (Una hipótesis de Humboldt)
- Sandra Rebok: Alexander von Humboldt y el modelo de la Historia Natural y Moral
- Michael Zeuske: Humboldt, Historismus, Humboldteanisierung. Der „Geschichtsschreiber von Amerika“, die Massensklaverei und die Globalisierungen der Welt
- Ottmar Ette: Nachwort nach dem 11. September 2001
description: HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies, II.2001, 3
Photon propagation in a discrete fiber network: An interplay of coherence and losses
Creators: name: Regensburger, Alois
name: Bersch, Christoph
name: Hinrichs, Benjamin
name: Onishchukov, Georgy
name: Schreiber, Andreas
name: Silberhorn, Christine
name: Peschel, Ulf
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study light propagation in a photonic system that shows stepwise evolution in a discretized environment. It resembles a discrete-time version of photonic waveguide arrays or quantum walks. By introducing controlled photon losses to our experimental setup, we observe unexpected effects like sub-exponential energy decay and formation of complex fractal patterns. This demonstrates that the interplay of linear losses, discreteness and energy gradients leads to genuinely new coherent phenomena in classical and quantum optical experiments. Moreover, the influence of decoherence is investigated.
description: To appear in PRL
title: HiN : Alexander von Humboldt im Netz
Creators: name: Zeuske, Michael
name: Suckow, Christian
name: Rebok, Sandra
name: Nöller, Renate
name: Holl, Frank
name: Ette, Ottmar
Publisher: name: Universitätsverlag Potsdam
Year: 2019

description: Inhalt:

- Michael Zeuske: Humboldt, Historismus, Humboldteanisierung. Der „Geschichtsschreiber von Amerika“, die Massensklaverei und die Globalisierungen der Welt
- Christian Suckow: Abenteuer Alexander-von-Humboldt-Bibliographie
- Sandra Rebok: Alexander von Humboldt im Spiegel der spanischen Presse.
Zur Wahrnehmung seiner Person und seiner Ideen während der ersten Hälfte des 19. Jahrhunderts
- Renate Nöller: Jade aus Amerika und weitere Grünsteinobjekte von Alexander von Humboldt aus dem Berliner Mineralienkabinett
- Frank Holl: Humboldt y el Colonialismo
- Ottmar Ette: „… daß einem leid tut, wie er aufgehört hat, deutsch zu sein“. Alexander von Humboldt, Preußen und Amerika
description: HiN : Alexander von Humboldt im Netz ; International Review for Humboldtian Studies, III.2002, 4
The Demographics of Broad-Line Quasars in the Mass-Luminosity Plane. I. Testing FWHM-Based Virial Black Hole Masses
Creators: name: Shen, Yue
name: Kelly, Brandon C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We jointly constrain the luminosity function (LF) and black hole mass function (BHMF) of broad-line quasars with forward Bayesian modeling in the quasar mass-luminosity plane, based on a homogeneous sample of ~ 58,000 SDSS DR7 quasars at z ~ 0.3-5. We take into account the selection effect of the sample flux limit; more importantly, we deal with the statistical scatter between true BH masses and FWHM-based single-epoch virial mass estimates, as well as potential luminosity-dependent biases of these mass estimates. The LF is tightly constrained in the regime sampled by SDSS, and makes reasonable predictions when extrapolated to ~ 3 magnitudes fainter. Downsizing is seen in the model LF. On the other hand, we find it difficult to constrain the BHMF to within a factor of a few at z>~0.7 (with MgII and CIV-based virial BH masses). This is mainly driven by the unknown luminosity-dependent bias of these mass estimators and its degeneracy with other model parameters, and secondly driven by the fact that SDSS quasars only sample the tip of the active BH population at high redshift. Nevertheless, the most likely models favor a positive luminosity-dependent bias for MgII and possibly for CIV, such that at fixed true BH mass, objects with higher-than-average luminosities have over-estimated FWHM-based virial masses. There is tentative evidence that downsizing also manifests itself in the active BHMF, and the BH mass density in broad-line quasars contributes an insignificant amount to the total BH mass density at all times. Within our model uncertainties, we do not find a strong BH mass dependence of the mean Eddington ratio; but there is evidence that the mean Eddington ratio (at fixed BH mass) increases with redshift.
description: ApJ in press; v2 matched to the accepted version; table data included in the source file
Full waveform inversion for CO2 monitoring: a feasibility study at the CMC Newell County facility
Creators: name: Amundaray Nieto, Ninoska
Publisher: name: Science
Year: 2023
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Inversion
subject: Full Waveform Inversion
subject: Vertical Seismic Profile
subject: Carbon dioxide
subject: Carbon Management Canada
subject: Southern Alberta
subject: Geology
subject: Geophysics

description: Carbon capture and storage stands out as a method to aid in mitigating the effects associated with the anthropogenic emissions of carbon dioxide (CO2). However, to adopt this technology, an understanding of the monitoring methods that aid to ensure the accuracy, conformance, and containment of the injecting fluid in the subsurface must be refined. The Carbon Management Canada Newell County facility in southern Alberta simulates a controlled leakage of CO2 from a deeper injection target as an alternative to assess geophysical and geochemical methods in their capacity to monitor the development of a CO2 plume. Seismic monitoring of CO2 encompasses stages of acquisition, processing, and inversion. This thesis deals with the last part through full waveform inversion (FWI) by examining an acoustic and elastic wave propagation for three stages of CO2 injection using vertical seismic profiles (VSP). VSP are among the seismic acquisition surveys assessed at the study site. These are attractive for seismic inversion due to their high signal-to-noise ratio, preservation of frequency content, and fixed acquisition. The simulated acoustic experiments examined in this thesis set expectations about the resolution of velocity structures. While, the elastic experiments simulate complexities that are closer to those expected in the subsurface, providing a better view of the challenges of multi-parameter FWI for the study site. To mitigate the latter, I suggest implementing a sequential approach for multi-parameter cases and conditioning the inversion utilizing prior information. This constraint was assessed through the model-fitting and the data-fitting term of the objective function for FWI. Overall, inverted results demonstrate reliable P-wave and S-wave velocity structures but generally poor density models. Although the geometry of the CO2 effects was imaged with relative accuracy in the neighbouring areas to the injection well in most examples, with increasing offset, this became more challenging, especially for S-wave velocity and density. Approximately 50% to 70% of the expected variation of P-wave velocity was reconstructed between stages, and about 50% of the S-wave variation was also estimated in the best-case scenarios.
Environmental justice and the clean power plan: the case of energy efficiency
Creators: name: Martinez, Cecilia
Publisher: name: Mountain Scholar
Year: 2017
Subjects: Clean Power Plan
CPP
Clean Air Act
EPA
climate change
CO2 standards

description: Presented at the Environmental justice in the Anthropocene symposium held on April 24-25, 2017 at the Lory Student Center, Colorado State University, Fort Collins Colorado. This symposium aims to bring together academics (faculty and graduate students), independent researchers, community and movement activists, and regulatory and policy practitioners from across disciplines, research areas, perspectives, and different countries. Our overarching goal is to build on several decades of EJ research and practice to address the seemingly intractable environmental and ecological problems of this unfolding era. How can we explore EJ amongst humans and between nature and humans, within and across generations, in an age when humans dominate the landscape? How can we better understand collective human dominance without obscuring continuing power differentials and inequities within and between human societies? What institutional and governance innovations can we adopt to address existing challenges and to promote just transitions and futures?
description: Includes bibliographical references.
description: The purpose of this paper is to provide an outline of environmental justice (EJ) issues of the CPP, specifically with respect to energy efficiency. It is one of a complement of papers sponsored by the Milano School of International Sustainability at the New School that are intended to provide an EJ review of the CPP as a foundation for understanding the opportunities and challenges for integrating equity and justice in climate policy. The catalyst for this set of papers exemplifies one of the problematic issues of climate policy in the U.S. as it has developed over the last several years. While various policy mechanisms have been extensively analyzed in terms of economic efficiency, flexibility and costs of compliance, these stand in stark contrast to only a handful of research efforts that focus on equity impacts of domestic climate mitigation policy. Our goal here is to provide a summary of the major justice/equity issues associated with the CPP specifically, and mainstream climate and energy policy generally. As such, it is not intended to be an in-depth analysis, but rather a starting point for further policy research which we hope to continue.
Continuum and Discrete Initial-Boundary-Value Problems and Einstein's Field Equations
Creators: name: Sarbach, Olivier
name: Tiglio, Manuel
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Many evolution problems in physics are described by partial differential equations on an infinite domain; therefore, one is interested in the solutions to such problems for a given initial dataset. A prominent example is the binary black hole problem within Einstein's theory of gravitation, in which one computes the gravitational radiation emitted from the inspiral of the two black holes, merger and ringdown. Powerful mathematical tools can be used to establish qualitative statements about the solutions, such as their existence, uniqueness, continuous dependence on the initial data, or their asymptotic behavior over large time scales. However, one is often interested in computing the solution itself, and unless the partial differential equation is very simple, or the initial data possesses a high degree of symmetry, this computation requires approximation by numerical discretization. When solving such discrete problems on a machine, one is faced with a finite limit to computational resources, which leads to the replacement of the infinite continuum domain with a finite computer grid. This, in turn, leads to a discrete initial-boundary value problem. The hope is to recover, with high accuracy, the exact solution in the limit where the grid spacing converges to zero with the boundary being pushed to infinity. The goal of this article is to review some of the theory necessary to understand the continuum and discrete initial-boundary value problems arising from hyperbolic partial differential equations and to discuss its applications to numerical relativity; in particular, we present well-posed initial and initial-boundary value formulations of Einstein's equations, and we discuss multi-domain high-order finite difference and spectral methods to solve them.
description: To appear in Living Reviews in Relativity, 191 pages
Unified derivation of exact solutions for a class of quasi-exactly solvable models
Creators: name: Agboola, Davids
name: Zhang, Yao-Zhong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a unified treatment of exact solutions for a class of four quantum mechanical models, namely the singular anharmonic potential, the generalized quantum isotonic oscillator, the soft-core Coulomb potential, and the non-polynomially modified oscillator. We show that all four cases are reducible to the same basic ordinary differential equation, which is quasi-exactly solvable. A systematic and closed form solution to the basic equation is obtained via the Bethe ansatz method. Using the result, general exact expressions for the energies and the allowed potential parameters are given explicitly for each of the four cases in terms of the roots of a set of algebraic equations. A hidden $sl(2)$ algebraic structure is also discovered in these models.
description: Latex file, 14 pages, many modifications made and misprints corrected
Ginzburg-Landau Theory for the Jaynes-Cummings-Hubbard Model
Creators: name: Nietner, Christian
name: Pelster, Axel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We develop a Ginzburg-Landau theory for the Jaynes-Cummings-Hubbard model which effectively describes both static and dynamic properties of photons evolving in a cubic lattice of cavities, each filled with a two-level atom. To this end we calculate the effective action to first-order in the hopping parameter. Within a Landau description of a spatially and temporally constant order parameter we calculate the finite-temperature mean-field quantum phase boundary between a Mott insulating and a superfluid phase of polaritons. Furthermore, within the Ginzburg-Landau description of a spatio-temporal varying order parameter we determine the excitation spectra in both phases and, in particular, the sound velocity of light in the superfluid phase.
Discrete Gravity Models and Loop Quantum Gravity: a Short Review
Creators: name: Dupuis, Maite
name: Ryan, James P.
name: Speziale, Simone
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We review the relation between Loop Quantum Gravity on a fixed graph and discrete models of gravity. We compare Regge and twisted geometries, and discuss discrete actions based on twisted geometries and on the discretization of the Plebanski action. We discuss the role of discrete geometries in the spin foam formalism, with particular attention to the definition of the simplicity constraints.
description: v2: many amendments, matches published version
The Effect of Grid Spacing and Domain Size on the Quality of Ensemble Regional Climate Downscaling over South Asia during the Northeasterly Monsoon
Creators: name: Zubair, Lareef M.
Publisher: name: Columbia University
Year: 2010
Subjects: Environmental sciences

description: The performance of an ensemble-based dynamical regional climate downscaling system is evaluated over southern Asia in a northeasterly monsoon season for different choices in grid spacing and domain size. A seven-member ensemble of the ECHAM4.5 global climate model at a resolution of about 300-km grid size was used to drive the RegCM3 regional climate model with grid sizes of 100, 50, 25, and 20 km, respectively. The performance is reported in detail over Sri Lanka. Two sets of regional model runs were undertaken to assess the effect of grid spacing and model domain size on the downscaling performance. The RegCM3 simulation with 100-km grid size significantly underestimates the height of the central mountain range in Sri Lanka, in a manner that is too coarse to capture orographic influences on the rainfall. However, the RegCM3 simulations with grid sizes from 20 to 50 km capture mesoscale features that arise from uplift condensation on the windward side of the monsoon winds due to the topography. These simulations also capture the orographic influences on the month-to-month rainfall over Sri Lanka that were absent in the ECHAM4.5. While the "small domain" runs [where only the forcings for the region immediately around Sri Lanka (4°–11°N, 76°–85°E) are used] are computationally more efficient, the results are overly controlled by the lateral boundary driving of the ECHAM4.5 so they inherit large uncertainty from the seven ECHAM4.5 realizations used for the RegCM3 ensemble runs. The "large domain" simulation used a domain comprising both land and ocean (approximately 4°S–22°N, 65°–96°E). The large-domain group of simulations produced reasonable spatial distribution of precipitation over the region. Moreover, the ensemble spread was considerably reduced in the large-domain high-resolution runs. Therefore, fine enough grid resolution (25 km or less) and sufficiently large domain size are both needed to simulate the essential features of precipitation in this tropical and monsoonal region.