cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurements of Anisotropic Ion Temperatures, Non-Thermal Velocities, and Doppler Shifts in a Coronal Hole
Creators: name: Hahn, Michael
name: Savin, Daniel Wolf
Publisher: name: Columbia University
Year: 2013
Subjects: Astrophysics
Plasma (Ionized gases)
Physics
Microphysics

description: We present a new diagnostic allowing one to measure the anisotropy of ion temperatures and non-thermal velocities, as well as Doppler shifts with respect to the ambient magnetic field. This method provides new results, as well as an independent test for previous measurements obtained with other techniques. Our spectral data come from observations of a low-latitude, on-disk coronal hole. A potential field source surface model was used to calculate the angle between the magnetic field lines and the line of sight for each spatial bin of the observation. A fit was performed to determine the line widths and Doppler shifts parallel and perpendicular to the magnetic field. For each line width component we derived ion temperatures T i, ⊥ and T i, ∥ and non-thermal velocities v nt, ⊥ and v nt, ∥. T i, ⊥ was cooler than off-limb polar coronal hole measurements, suggesting increasing collisional cooling with decreasing height. T i, ∥ is consistent with a uniform temperature of (1.8 ± 0.2) × 106 K for each ion. Since parallel ion heating is expected to be weak, this ion temperature should reflect the proton temperature. A comparison between our results and others implies a large proton temperature gradient around 1.02 R ☉. The non-thermal velocities are thought to be proportional to the amplitudes of various waves. Our results for v nt, ⊥ agree with Alfvén wave amplitudes inferred from off-limb polar coronal hole line width measurements. Our v nt, ∥ results are consistent with slow magnetosonic wave amplitudes inferred from Fourier analysis of time-varying intensity fluctuations. Doppler shift measurements yield outflows of ≈5 km s–1 for ions formed over a broad temperature range. This differs from other studies that found a strong Doppler shift dependence on formation temperature.
The spin of late-type galaxies at redshifts z < 1.2
Creators: name: Cervantes-Sodi, Bernardo
name: Hernandez, X.
name: Hwang, Ho Seong
name: Park, Changbom
name: Borgne, Damien Le
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the evolution of the galactic spin using data of high redshift galaxies in the fields of the Great Observatories Origins Deep Survey (GOODS). Through simple dynamical considerations we estimate the spin for the disc galaxies in our sample and find that its distribution is consistent with that found for nearby galaxies. Defining a dimensionless angular momentum parameter for the disc component of the galaxies ($λ_{d}$), we do not find signs of evolution in the redshift range $0.4 \leq z \leq 1.2$. We find that the mass and environmental dependence of the spin of our high redshift galaxies are similar to that of low-$z$ galaxies; showing a strong dependence on mass, in the sense that low-mass systems present higher $λ_{d}$ values than high-mass galaxies, with no significant dependence on the environmental density. These results lead us to conclude that, although individual disc galaxies might occasionally suffer from strong evolution, they evolve in such a way that the overall spin distribution of the galactic population remains constant from $z\sim1$ to the present epoch.
description: 8 pages, 4 figures, 1 Table. Accepted for publication in MNRAS
title: Beyond blebs and bullae: atypical causes of spontaneous pneumothorax.
Creators: name: Costilla Frías, Marcos
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Infection
subject: Connective tissue disorders
subject: Cancer
subject: Diagnostic procedure
subject: CT
subject: Conventional radiography
subject: Thorax
subject: Lung
subject: Chest

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the causes of spontaneous pneumothorax (SP), focusing on radiological findings that could suggest an etiological...
Closing ceremonies and celebration of outcomes with Delwin Benson
Creators: name: Benson, Delwin E.
name: Peterson, Kesley Arline
name: International Wildlife Ranching Symposium, Producer
Publisher: name: Mountain Scholar
Year: 2014
Subjects: subject: Wildlife management -- Congresses
subject: Range management -- Congresses

description: Presented at the 8th international congress for wildlife and livelihoods on private and communal lands: livestock, tourism, and spirit, that was held on September 7-12, 2014 in Estes Park, Colorado.
description: Remarks cover: What we accomplished here -- Visual overviews -- What we can accomplish next -- Next venue -- International home -- Use of LandHelp for conservation communications and home for congress proceedings -- Video production and uses.
Climatic impact of the Millennium eruption of Changbaishan volcano in China: New insights from high-precision radiocarbon wiggle-match dating
Creators: name: Xu, Jiandong
name: Pan, Bo
name: Liu, Tanzhuo
name: Hajdas, Irka
name: Zhao, Bo
name: Yu, Hongmei
name: Liu, Ruoxin
name: Zhao, Ping
Publisher: name: Columbia University
Year: 2013
Subjects: Paleoclimatology
Atmospheric chemistry

description: Changbaishan volcano in northeast China, previously dated to have erupted around the mid-10th century A.D., is renowned for producing one of the largest eruptions in history (magnitude 6.8) and thus speculated to have substantial climatic impact. Here we report a new high-precision 14C wiggle-match age of A.D. 946 ± 3 obtained from a 264 year old tree trunk (with bark) killed during the eruption, using the OxCal's Bayesian modeling approach with 27 sequentially sampled annual rings of decadal intervals. The new chronology conforms well to the calendar date of A.D. 946 for the eruption inferred from historical documentary evidence. We find no stratospherically loaded sulfate spike that might be associated with the A.D. 946 eruption in the global volcanism record from the GISP2 ice core, suggesting the stratospheric sulfate aerosols produced during the eruption were not transported to the arctic region, due probably to its relatively low stratospheric sulfur emission and the seasonal effects of the atmospheric circulation at the time of the eruption that likely occurred in the winter of A.D. 946–947. Since the stratospheric volcanic sulfates are the main cause of large-scale climate perturbations, this finding indicates that the Millennium eruption of Changbaishan volcano might have limited regional climatic effects, rather than global or hemispheric impact as implied by its magnitude.
Memoirs of Fellows and Corresponding Fellows of the Medieval Academy of America
Creators: name: Barolini, Teodolinda
name: Hollander, Robert
name: Kirkham, Victoria
Publisher: name: Columbia University
Year: 2006
Subjects: Romance literature

description: Vittore Branca was a prodigy of nature. After having taken on the United States when he was by no stretch of the imagination a young man, his visits here were marked by an iron discipline and indefatigable energy. He would start his morning calls at 7 A.M., rousing us from our slumbers for the tasks at hand; then after his appointed rounds of giving lectures or taking meetings with provosts or presidents whose institutions required his guidance, always punctuated by commotion-provoking visits to the Frick or the Morgan or other excursions that were part of an active and unceasing scholarly existence, in the evening he would outlast younger friends and colleagues in conversation and social intercourse. The balance between a genuinely outgoing and interested nature and a fierce sense of self-direction that could seem to preclude hearing others-ah those sidewalk conversations arm-in-arm when we would stop traffic as he came to a particularly important  point and one would be simultaneously fascinated and vigilantly on the lookout for the opportunity to make a point of one's own-was a constant and fertile tension of his existence. Now that he is gone it is clear that he heard, and that we experienced him as hearing: it is clear from how bereft we feel as we reach mentally for the pen with which to write him (Branca was an avid correspondent, and he used a fountain pen) and from how much we miss the opportunity to solicit his opinion. For this was an authentically wise man, not just erudite and intelligent but wise in the ways of the world, in the words of Dante's Ulysses, "del mondo esperto" (Inferno 26.98).
Suzaku broad-band observations of the Seyfert 1 galaxies Mrk 509 and Mrk 841
Creators: name: Cerruti, M.
name: Ponti, G.
name: Boisson, C.
name: Costantini, E.
name: Longinotti, A. L.
name: Matt, G.
name: Mouchet, M.
name: Petrucci, P. O.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report an analysis and modelling of new Suzaku observations of the Seyfert 1 galaxies Mrk509 and Mrk841, taken between April and November 2006,for Mrk509,and between January and July 2007,for Mrk841,for a total exposure time of ~100 ks each.Data from XIS and HXD/PIN instruments,going from 0.5 to 60 keV,represent the highest spectral resolution simultaneous broad-band X-ray spectrum for these objects.We fitted the broad-band spectrum of both sources with a double Comptonisation model,adding neutral reflection from distant material and a two-phase warm absorber.We then studied the two competing models developed to explain the soft excess in terms of atomic processes:a blurred ionised disc reflection and an ionised absorption by a high velocity material.When fitting the data in the 3-10 keV range with a power law spectrum,and extrapolating this result to low energies,a soft excess is clearly observed below 2 keV:its strength is however weak compared to previous observations of both sources.A moderate hard excess is seen at energies greater than 10 keV,together with a neutral Fe K_a narrow emission line at E~6.4 keV and a broad Fe emission line.For Mrk509,the broad Fe emission line is required in all the three physical models in order to have a good fit to the data:this finding suggests that the blurred reflection model correctly describes the soft excess,but that it underestimates the broad Fe emission line.For the smeared absorption model,this suggests instead that the continuum spectrum absorbed by the outflowing gas should contain indeed a reflected component.For Mrk841,all three models that we tested provide a good fit to the data,and we cannot invalidate any of them.A broad emission line is required in the double Comptonisation and smeared absorption models,while the blurred reflection model consistently fits the broad-band spectrum,without adding any extra emission-line component.
description: 15 pages, 9 figures, accepted for publication in Astronomy and Astrophysics
title: Acute CNS complications in pediatric leukemias: A pictorial essay.
Creators: name: SYED, FAISAL
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Oncologic Imaging
subject: CNS
subject: Emergency
subject: Paediatric
subject: CT
subject: MR
subject: Imaging sequences
subject: Acute
subject: Blood
subject: Cancer
subject: Not applicable

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 perform an audit of imaging (predominantly MRI) done for patients with pediatric leukemia presenting with acute neurological symptoms/signs. - To identify the incidence and types of various acute neurological...
Remix: an exploration into product life-cycle
Creators: name: Jacoby, Jennifer
Publisher: name: Environmental Design
Year: 2011

description: Bibliography: p. 115-139
description: Thesis is in colour.
description: This Master's Degree Project explores the use of remix as a means of challenging object end states, and addresses current issues regarding sustainability and waste. Waste is of course a natural consequence of consumption, but Remix utilizes waste products as raw materials and re­evaluates the idea of what constitutes a product's life cycle. By deconstructing an existing object into its constituent parts and imposing a value on those scrap materials the parts of the object can be re-contextualized, demonstrating that an object can hold a function or style past their initial intended use. The result is a shift in cultural values and the context in which we view products and product life-cycles. Remix challenges the object's context by removing its manufacturer's preconceived and intended notions regarding who is using it, how long they are using it for, what its intended function or functions are and any trends that it was once associated with. A remix experience engages an interaction between people and objects, and by deconstructing objects the user becomes an active participant in the exploration of ideas, process and invention. Several design examples utilizing remix philosophy will be created to demonstrate the evolutionary aspects of product life-cycle and material adaptability. The examples will integrate both found objects in their entirety or in parts, and new off the shelf products. By using these design methodologies the remixed work will demonstrate that objects can evolve and new translations of form can be found in already existing products.
Dante's "Comedy": Introductory Readings of Selected Cantos by Uberto Limentani
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 1998
Subjects: Romance literature
Discourse analysis, Literary

description: The ten readings in this slim volume were originally given as lecturae Dantis at the  University of Cambridge between 1969 and 1984. Limentani seems to favor transitional and political cantos (the readings chosen are Inferno 1, 6, 8, 17; Purgatorio 1, 5, 8; Paradiso 1, 6, 17); he is adept at noting the canto's position within the poem as a whole. His method is to give an overview of the canto that follows its own organization, proceeding from one block of verses to the next; his style melds a willingness to offer an "impressionistic" reaction (for instance, regarding Inferno 1: "This vagueness as to details adds to the Canto the air of a dream-like scene that I myself find very appealing" [p. 2]) with a certain amount of textual precision (shortly before offering he above comment, he pointed out that "the words 'parea' and 'sembiava' appear three times between lines 46 and 50" [p. 1]). The lectura of Inferno 6 is particularly satisfying for its stress on the link between gluttony and Florentine politics; Limentani also makes the interesting point that this canto is, with Inferno 11, the shortest in the poem. Indeed, most useful, from this reader's perspective, were the occasional observations that set one thinking of the poem as a whole: thus Limentani informs us that Inferno 17 contains more similes than any other canto, notes that "If Purgatory is the antechamber of Paradise, Ante-Purgatory is the antechamber of the antechamber" (p. 81), and reminds us that there is no Roman emperor in hell.
Use of general practitioner services among youth and young adults in Norway from 2006 to 2021
Creators: name: Wahlberg, Kirsti
name: Pape, Kristine
name: Austad, Bjarne
name: Vie, Gunnhild Åberge
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health
subject: Computational Biology

description: To describe the frequency and content of contacts with general practitioners (GPs) among youth and young adults by sex, age and time, emphasizing mental health, sexual health and respiratory tract infections. Registry-based population-wide cohort study. General practice in Norway 2006–2021. Norwegian residents aged 13–25 within the study period. Contacts with GPs and out-of-hours services, including type of contact, specific procedures and diagnoses. Average number of GP consultations increased over the study period for all age groups. Conversation therapy and time-consuming consultations increased over time, while chlamydia testing and contraceptive guidance decreased among young women. Consultations with mental health diagnoses increased substantially over the study period for all age groups. Use of GP and out-of-hours services increased with age, with a peak at the end of upper secondary school. Youth more often met their own regular GP when consulting for mental health diagnoses than for respiratory tract infections. This study confirmed the continuing trend of increasing use of general practice services among youth, with an increase in conversation therapy and consultations with mental health diagnoses. Procedures related to sexual health became less common. Youth usually meet their regular GP for consultations, in particular those whose diagnosis indicates the highest need of continuity. Youth are a healthy group with relatively low GP use. However, consultation rates have been increasing in later years.We found that consultation rates increased more over time than can likely be attributed to known policy changes.Consultations with mental diagnoses and conversational therapy increased substantially among youth aged 13–25, while family planning consultations and related procedures decreased.The youth usually meet their own regular GP, particularly if they have diagnoses indicating higher need for follow-up. Youth are a healthy group with relatively low GP use. However, consultation rates have been increasing in later years. We found that consultation rates increased more over time than can likely be attributed to known policy changes. Consultations with mental diagnoses and conversational therapy increased substantially among youth aged 13–25, while family planning consultations and related procedures decreased. The youth usually meet their own regular GP, particularly if they have diagnoses indicating higher need for follow-up.
Lessons not learned: Insider threats in pathogen research
Creators: name: Culp, Derrin
Publisher: name: Columbia University
Year: 2013
Subjects: Public health
Research--Moral and ethical aspects
Pathogenic microorganisms
Microbiologists

description: 1) Even though America's most notorious biosecurity breach -- the 2001 anthrax mailings -- was the work of an insider, expert panels have concluded that there is no need for intrusive monitoring of microbiologists engaged in unclassified research. 2) The debate over publication of studies on the H5N1 virus focused on terrorists and ignored the potential risks posed by insiders. 3) Microbiologists should not be exempt from the kind of scrutiny that scientists who work with nuclear weapons and fissile materials must endure.
Resilient forests, resilient communities : facing change, challenge, and disturbance in British Columbia and Oregon
Creators: name: Davis, Emily Jane
Publisher: name: University of British Columbia
Year: 2011

description: This research examines 1) the historical precedents for the complex ecological and socioeconomic disturbances that forest communities in the North American West face today; and 2) the multi-level governance approaches that have arisen to address these disturbances. There has been a rise in multi-level, regional forms of environmental governance that cross scales and involve stakeholders in resource management and community development decisions. Scholars of community-based natural resource management and resilience have argued that devolution affords local empowerment, and that multi-level governance can ensure a “fit” between complex ecosystems and institutions. In contrast, political ecologists and human geographers have expressed concern that such arrangements are manifestations of the withdrawal of the state from public lands management. I use two in-depth, qualitative case studies of multi-level governance efforts in Interior British Columbia and central Oregon to analyze how such arrangements work, and who benefits and has power under their auspices. In particular, I focus on 11 social dimensions of multi-level governance that were accessible through qualitative means. I asked how the historical and local dynamics of communities of place and interest in each case study affected these dimensions and therefore the functioning of multi-level governance. I contend that multi-level governance is a useful model for governance through change and challenge, because the impacts of these complex disturbances cut across many stakes and kinds of forest-community relationships. I found that while it is the experience of present and fear of future crises that create the opportunity for response, it is the past that frequently affects exactly how that governance will function. The histories of land use and relationships in specific places have been fundamental to the stakes that different participants in multi-level governance bring to the table. My analysis revealed that historical experiences make five of my proposed social dimensions the most influential in the working of multi-level governance: framing, access, memory, identity, and learning. In sum, this research asserts that historical, local, and social dynamics are significant determinants of how equitable a multi-level governance organization may be, and who it represents and benefits.
title: Post-contrast acute kidney injury: update of current recommendations and practical points in the everyday practice
Creators: name: Senra, Carlos
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Genitourinary
subject: Contrast agents
subject: Kidney
subject: Management
subject: CT
subject: Contrast agent-intravenous
subject: Contrast agent-other
subject: Drugs / Reactions
subject: Toxicity
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To update the essentials of the literature regarding post-contrast acute kidney injury (PC-AKI). To review and compare the most recent guidelines of the European Society of Urology Radiology (ESUR) and the American College of Radiology (ACR) on...
Congress for wildlife and livelihoods on private and communal lands: livestock, tourism, and spirit: summary
Creators: name: Benson, Delwin E.
name: Peterson, Kesley Arline
name: International Wildlife Ranching Symposium, Producer
Publisher: name: Mountain Scholar
Year: 2014
Subjects: subject: Wildlife management -- Congresses
subject: Range management -- Congresses

description: Presented at the 8th international congress for wildlife and livelihoods on private and communal lands: livestock, tourism, and spirit, that was held on September 7-12, 2014 in Estes Park, Colorado.
description: The 8th International Wildlife Ranching Symposium, IWRS, entitled Congress for Wildlife and Livelihoods on Private and Communal Lands: Livestock, Tourism, and Spirit was held Sept 7-12, 2014 in Estes Park Colorado and was an intellectual and operational success with a positive "Spirit" being high amongst attendees.
description: Includes: a brief summary of congress, a thank you note from Dr. Benson and a short video.
The Carina Flare: What can fragments in the wall tell us?
Creators: name: Wunsch, Richard
name: Jachym, Pavel
name: Sidorin, Vojtech
name: Ehlerova, Sona
name: Palous, Jan
name: Dale, James
name: Dawson, Joanne R.
name: Fukui, Yasuo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: $^{13}$CO(J=2--1) and C$^{18}$O(J=2--1) observations of the molecular cloud G285.90+4.53 (Cloud~16) in the Carina Flare supershell (GSH287+04-17) with the APEX telescope are presented. With an algorithm DENDROFIND we identify 51 fragments and compute their sizes and masses. We discuss their mass spectrum and interpret it as being the result of the shell fragmentation process described by the pressure assisted gravitational instability - PAGI. We conclude that the explanation of the clump mass function needs a combination of gravity with pressure external to the shell.
description: 19 pages, 14 figures, accepted by A&A
title: Contrast-enhanced ultrasound (CEUS) in evaluation and follow-up of pediatric blunt abdominal trauma.
Creators: name: Costilla Frías, Marcos
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Trauma
subject: Radiation safety
subject: Diagnostic procedure
subject: Complications
subject: Ultrasound
subject: CT
subject: Trauma
subject: Paediatric
subject: Abdomen
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the utility of contrast-enhanced ultrasound in the follow-up of traumatic solid organ lesions in...
IMPLEMENTATION OF PARALLELISM OF BACK PROPAGATION NEURAL NETWORK ALGORITHM ON A DISTRIBUTED COMPUTING SYSTEM
Creators: name: SHAHAZAD NIWAZI QURASHI
name: MOHD SHAHNAWAZ ANSARI
name: FARRUKH SOBIA
name: RABINDRA K. BARIK
Publisher: name: Zenodo
Year: 2023
Subjects: ANN, Backpropagation, Parallel Processing, Distributed system, MATLAB.

description: Abstract
Neural networks are composed of many small processors that work simultaneously on the same task. They can learn from training data and use their knowledge to compare patterns in a dataset.  Combining the strengths of parallel processing and distributed computing, the neural network can enhance the processing times for both the learning and execution stages to efficiently calculate the most probable output with a remarkable degree of accuracy.  The aim of this research was to design, implement, and demonstrate the enhanced computational speed of a generalized large-scale neural network with broad-based applications using parallel computing. As a result, we evaluated distributed computing systems and compared the performance of different neural network training functions to determine which one worked best for good system performance. The results indicate that the proposed method outperforms other methods in terms of accuracy and convergence time. The study suggests that parallelism of the backpropagation neural network model can lead to faster training convergence time and higher accuracy of the results. The system takes input data and runs on different systems in parallel.
Evaporation limited loading of an atom trap
Creators: name: Falkenau, Markus
name: Volchkov, Valentin V.
name: Rührig, Jahn
name: Gorniaczyk, Hannes
name: Griesmaier, Axel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Recently, we have experimentally demonstrated a continuous loading mechanism for an optical dipole trap from a guided atomic beam [1]. The observed evolution of the number of atoms and temperature in the trap are consequences of the unusual trap geometry. In the present paper, we develop a model based on a set of rate equations to describe the loading dynamics of such a mechanism. We consider the collision statistics in the non-uniform trap potential that leads to twodimensional evaporation. The comparison between the resulting computations and experimental data allows to identify the dominant loss process and suggests ways to enhance the achievable steady-state atom number. Concerning subsequent evaporative cooling, we find that the possibility of controlling axial and radial confinement independently allows faster evaporation ramps compared to single beam optical dipole traps.
description: 10 pages, 7 figures
title: Beyond the prostate – incidental findings on multiparametric prostate MRI
Creators: name: Zacharzewska-Gondek, Anna
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Education and training
subject: Outcomes analysis
subject: MR
subject: Genital / Reproductive system male
subject: Genitourinary

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To display incidental findings (IFs) found during multiparametric prostate MRI (mp-MRI) and to discuss their clinical...
Discrete Morse functions for graph configuration spaces
Creators: name: Sawicki, Adam
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Algebraic Topology (math.AT)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present an alternative application of discrete Morse theory for two-particle graph configuration spaces. In contrast to previous constructions, which are based on discrete Morse vector fields, our approach is through Morse functions, which have a nice physical interpretation as two-body potentials constructed from one-body potentials. We also give a brief introduction to discrete Morse theory. Our motivation comes from the problem of quantum statistics for particles on networks, for which generalized versions of anyon statistics can appear.
description: 26 pages
Food plan: a strategic approach to enhancing the viability of the Calgary local food system
Creators: name: Bailey, Olive
Publisher: name: Environmental Design
Year: 2011

description: Bibliography: p. 212-224
description: Spurred by fears about the safety and reliability of the food supply and a rising awareness about the impact of food choices on the environment and local economy, Calgarians have increasingly embraced the local food movement in recent years. In 2006 during public consultations on creating a long-term sustainability plan for Calgary, Calgarians voiced their interest in local food and contributed to the elaboration of a set of 30-year targets through the ImagineCaIgaiy Plan. This Master Degree Project (MDP) undertakes a strategic analysis of the viability of the Calgary local food system and explores its ability to meet the 30-year targets in the plan. Through a modified approach to scenario planning, this MDP explores the potential impacts of four driving forces—climate change, population and demographic change, global demand for oil, and the sustainability and healthy living movement—on supply and demand within the local food system and what this will mean for achieving the food system goals expressed in the plan. Methods employed include key informant interviews, document review, participant observation, and an analysis of the strengths, weaknesses, opportunities, and threats (SWOT) of the system under the influence of the four drivers. Several key issues are identified with respect to securing the viability of the local food system. Among these are questions related to the appropriateness of the lmagineCalgary goals themselves; the limited supply of local food; development pressures on agricultural land; the variability of consumer demand; the declining economic viability of the farming industry; and weak institutional supports for local producers in Alberta. In response to these issues, a number of strategic recommendations are proposed. Recommendations consist of: • Creating the local food experience • Promoting producer cooperatives • Expanding the greenhouse industry • Facilitating green energy generation on farms • Creating space for local food system activities • Tailoring research and education to the needs of local food system actors • Developing local food policy for Calgary.
title: Describing the radiologic features of the most common CNS infections on MRI.
Creators: name: CANO, ANDRES
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Not applicable
subject: Not applicable
subject: Infection
subject: Abscess delineation
subject: MR
subject: Neuroradiology brain
subject: Neuro

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Describing the MRI features of the most common CNS...
Modeling of the Continuous Absorption of Electromagnetic Radiation in Dense Hydrogen Plasma
Creators: name: Mihajlov, A. A.
name: Sakan, N. M.
name: Sreckovic, V. A.
name: Vitel, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work is examined a new modeling way of describing the continuous absorption of electromagnetic (EM) radiation in a dense partially ionized hydrogen plasmas with electron densities about $5\cdot10^{18}$ cm$^{-3}$ - $1.5\cdot10^{19}$cm$^{-3}$ and temperatures about $1.6 \cdot10^{4}$ K - $2.5 \cdot 10^{4}$ K in the wavelength region $300 \textrm{nm} < λ< 500 \textrm{nm}$. The obtained results can be applied to the plasmas of the partially ionized layers of different stellar atmospheres.
Sphex argentatus FABRICIUS 1787
Creators: name: Madl, Michael
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Sphecidae
Sphex
Sphex argentatus

description: Sphex argentatus FABRICIUS, 1787
Sphex argentata (!) DAHLBOM (!): WALKER 1871a: 19 (Tadjoura).
Sphex argentatus FABRICIUS, 1787: DE DALLA TORRE 1897: 445 (world cat.).
D i s t r i b u t i o n: Tadjoura.
Sphex argentatus is known from the Afrotropical (e.g. Djibouti, Eritrea), Australian,
Oriental and Palaearctic regions. The record from Djibouti is not mentioned in ANDRÉ (1888: 143-4), INNES BEY (1911: 111), LECLERCQ (1955) and BOHART & MENKE (1976: 114).
description: Published as part of Madl, Michael, 2018, A preliminary catalogue of the Hymenoptera (Insecta) of the Republic of Djibouti, pp. 907-967 in Linzer biologische Beiträge 50 (2) on pages 944-945, DOI: 10.5281/zenodo.3776452
The Life Cycle of Northern Hemisphere Downward Wave Coupling between the Stratosphere and Troposphere
Creators: name: Shaw, Tiffany Ann
name: Perlwitz, Judith
Publisher: name: Columbia University
Year: 2013
Subjects: Climatic changes
Atmosphere

description: The life cycle of Northern Hemisphere downward wave coupling between the stratosphere and troposphere via wave reflection is analyzed. Downward wave coupling events are defined by extreme negative values of a wave coupling index based on the leading principal component of the daily wave-1 heat flux at 30 hPa. The life cycle occurs over a 28-day period. In the stratosphere there is a transition from positive to negative total wave-1 heat flux and westward to eastward phase tilt with height of the wave-1 geopotential height field. In addition, the zonal-mean zonal wind in the upper stratosphere weakens leading to negative vertical shear. Following the evolution in the stratosphere there is a shift toward the positive phase of the North Atlantic Oscillation (NAO) in the troposphere. The pattern develops from a large westward-propagating wave-1 anomaly in the high-latitude North Atlantic sector. The subsequent equatorward propagation leads to a positive anomaly in midlatitudes. The near-surface temperature and circulation anomalies are consistent with a positive NAO phase. The results suggest that wave reflection events can directly influence tropospheric weather. Finally, winter seasons dominated by extreme wave coupling and stratospheric vortex events are compared. The largest impacts in the troposphere occur during the extreme negative seasons for both indices, namely seasons with multiple wave reflection events leading to a positive NAO phase or seasons with major sudden stratospheric warmings (weak vortex) leading to a negative NAO phase. The results reveal that the dynamical coupling between the stratosphere and NAO involves distinct dynamical mechanisms that can only be characterized by separate wave coupling and vortex indices.
Redshift and distances in a ΛCDM cosmology with non-linear inhomogeneities
Creators: name: Meures, Nikolai
name: Bruni, Marco
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Motivated by the dawn of precision cosmology and the wealth of forthcoming high precision and volume galaxy surveys, in this paper we study the effects of inhomogeneities on light propagation in a flat ΛCDM background. To this end we use exact solutions of Einstein's equations (Meures & Bruni 2011) where, starting from small fluctuations, inhomogeneities arise from a standard growing mode and become non-linear. While the matter distribution in these models is necessarily idealised, there is still enough freedom to assume an arbitrary initial density profile along the line of sight. We can therefore model over-densities and voids of various sizes and distributions, e.g. single harmonic sinusoidal modes, coupled modes, and more general distributions in a ΛCDM background. Our models allow for an exact treatment of the light propagation problem, so that the results are unaffected by approximations and unambiguous. Along lines of sight with density inhomogeneities which average out on scales less than the Hubble radius, we find the distance redshift relation to diverge negligibly from the Friedmann-Lemaitre-Robertson-Walker (FLRW) result. On the contrary, if we observe along lines of sight which do not have the same average density as the background, we find large deviations from the FLRW distance redshift relation. Hence, a possibly large systematic might be introduced into the analysis of cosmological observations, e.g. supernovae, if we observe along lines of sight which are typically more or less dense than the average density of the Universe. In turn, this could lead to wrong parameter estimation: even if the Cosmological Principle is valid, the identification of the true FLRW background in an inhomogeneous universe maybe more difficult than usually assumed.
description: 15 pages, 12 figures, published in MNRAS. Corrected typos, re-formatted figures, added references and slightly changed notation (r->z)
title: Contrast Mammography. Everything you wanted to know, but you were afraid to ask.
Creators: name: Gioutlaki, Eleni
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Cancer
subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: Mammography
subject: Contrast agents
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1.To understand basic principles and technique of Contrast Mammography (CM) and investigate its role in breast imaging. 2.To refer the standardized examination protocol and demonstrate the CM imaging findings in breast lesions. 3.To review the...
Jed's corner with Steve Belinda
Creators: name: Johnston, Jedediah (Puppet), Interviewer
name: Belinda, Steve
name: International Wildlife Ranching Symposium, Producer
Publisher: name: Mountain Scholar
Year: 2014
Subjects: subject: Wildlife management -- Congresses
subject: Range management -- Congresses

description: Presented at the 8th international congress for wildlife and livelihoods on private and communal lands: livestock, tourism, and spirit, that was held on September 7-12, 2014 in Estes Park, Colorado.
description: Jedediah Johnston (puppet) interviews Steve Belinda.
Floating constraints in lexical choice
Creators: name: McKeown, Kathleen
name: Elhadad, Michael
name: Robin, Jacques
Publisher: name: Columbia University
Year: 1997
Subjects: Computer science

description: Lexical choice is a computationally complex task, requiring a generation system to consider a potentially large number of mappings between concepts and words. Constraints that aid in determining which word is best come from a wide variety of sources, including syntax, semantics, pragmatics, the lexicon, and the underlying domain. Furthermore, in some situations, different constraints come into play early on, while in others, they apply much later. This makes it difficult to determine a systematic ordering in which to apply constraints. In this paper, we present a general approach to lexical choice that can handle multiple, interacting constraints. We focus on the problem of floating constraints, semantic or pragmatic constraints that float, appearing at a variety of different syntactic ranks, often merged with other semantic constraints. This means that multiple content units can be realized by a single surface element, and conversely, that a single content unit can be realized by a variety of surface elements. Our approach uses the Functional Unification Formalism (FUF) to represent a generation lexicon, allowing for declarative and compositional representation of individual constraints.
title: Image diagnosis of thoracic vascular diseases
Creators: name: Moriya, Hiroshi
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Chest
subject: Cardiovascular system
subject: Pulmonary vessels
subject: Conventional radiography
subject: CT-Angiography
subject: MR-Angiography
subject: Contrast agent-intravenous
subject: Education
subject: Arteriovenous malformations
subject: Haemodynamics / Flow dynamics
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1. Technical explanation of CT and MRI in diagnosis of pulmonary vascular diseases. 2. Explanation and case presentation of representative pulmonary vascular diseases....
title: Essential review of dengue infection in endemic area. What radiologists should know?
Creators: name: Soo, Suet Woon
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Infection
subject: Education and training
subject: Acute
subject: Education
subject: Complications
subject: MR
subject: CT
subject: Conventional radiography
subject: Neuroradiology brain
subject: Lung
subject: Abdomen
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe and recognise radiological manifestations of dengue infection. To understand and correlate its pathophysiology with...
title: Langerhans Cell Histiocytosis of Bone in Children
Creators: name: Tlili, malek
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Genetic defects
subject: Diagnostic procedure
subject: MR
subject: Digital radiography
subject: CT
subject: Paediatric
subject: Bones
subject: Paediatric
subject: Prospective
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: The purpose of this studyis to present our experience and illustrate the most characteristic imaging features that are suggestiveof Langerhans Cell Histiocytosis (LCH) focusing on bone...
title: Significance of ASL in MR- Neuroimaging
Creators: name: BEVOOR CHOWDAIAH, SANJANA
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Seizure disorders
subject: Ischaemia / Infarction
subject: Arteriovenous malformations
subject: Molecular imaging
subject: Education
subject: MR-Functional imaging
subject: MR-Diffusion/Perfusion
subject: Neuroradiology brain
subject: MR physics
subject: Neuro

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To briefly describe the physics and technique of arterial spin labeling (ASL). To demonstrate the clinical utility of ASL in further characterizing the pathologies identified on traditional MR sequences as a problem solving...
Thermal Yang-Mills Theory In the Einstein Universe
Creators: name: Avramidi, Ivan G.
name: Collopy, Samuel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the stability of a non-Abelian chromomagnetic vacuum in Yang-Mills theory in Euclidean Einstein universe $S^1\times S^3$. We assume that the gauge group is a simple compact group $G$ containing the group SU(2) as a subgroup and consider static covariantly constant gauge fields on $S^3$ taking values in the adjoint representation of the group $G$ and forming a representation of the group $SU(2)$. We compute the heat kernel for the Laplacian acting on fields on $S^3$ in an arbitrary representation of SU(2) and use this result to compute the heat kernels for the gluon and the ghost operators and the one-loop effective action. We show that the only configuration of the covariantly constant Yang-Mills background that is stable is the one that contains only spinor (fundamental) representations of the group SU(2); all other configurations contain negative modes and are unstable. For the stable configuration we compute the asymptotics of the effective action, the energy density, the entropy and the heat capacity in the limits of low/high temperature and small/large volume and show that the energy density has a non-trivial minimum at a finite value of the radius of the sphere $S^3$.
description: 23 pages, introduction and conclusion are expanded; some references are added. This is the version accepted by J. Phys. A
Bertran de Born and Sordello: The Poetry of Politics in Dante's Comedy
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 1979
Subjects: Romance literature

description: The stature Dante grants Sordello in the Comedy has long puzzled critics, since it seems greater than warranted by the achievements of this Provençal poet. Not only does the meeting with Sordello, in the sixth canto of the Purgatorio, serve as the catalyst for the stirring invective against Italy that concludes the canto, but Sordello is assigned the important task of guiding Vergil and Dante to the valley of the princes and identifying for the two travelers its various royal inhabitants. This seems a large role for a poet who was-and is-best known as the author of a satirical lament with political overtones, the lament for Blacatz. Indeed, although there is a definite consonance between the tone of that lament and the hortatory tone of the character in the Comedy, Sordello's poetic oeuvre does not by itself convincingly account for his function in Dante's poem. In the absence of other explanations, however, critics have traditionally agreed that we must turn to Sordello's planh for an understanding of his position in the Comedy.