cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Restricting loop expansions in gauge theories coupled to matter
Creators: name: Brandt, F. T.
name: Frenkel, J.
name: Martins-Filho, S.
name: McKeon, D. G. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantizing any model in which a Lagrange multiplier (LM) field is used to restrict field configurations to those that satisfy the classical equations of motion, leads to at most one-loop radiative corrections. This approach can be used with both the Yang-Mills (YM) and Einstein-Hilbert (EH) action; the resulting theory is both renormalizable and unitary, has a positive energy spectrum and has no negative norm states contributing to physical processes. Although this approach cannot be consistently used with scalar fields alone, scalar fields can be coupled to gauge fields so that loop effects in the gauge sector are restricted to one-loop order in a way that satisfies the usual criterion for a consistent quantum field theory. The tree-level diagrams are those of the classical theory in which the metric couples to the energy-momentum tensor.
description: 28 pages, 8 figures. To appear in the Annals of Physics (the references have been sorted)
title: Tuberculosis: can AI become a reliable method for diagnosis and screening?
Creators: name: Moldovan, Antonia-Evelina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Artificial Intelligence and Machine Learning
subject: Artificial Intelligence
subject: Computer applications
subject: Thorax
subject: Conventional radiography
subject: Teleradiology
subject: Computer Applications-Detection, diagnosis
subject: Computer Applications-General
subject: Computer Applications-Teleradiology
subject: Cavitation
subject: Image verification
subject: Outcomes
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: The purpose of this work is to: emphasize the importance of chest X-ray imaging in establishing the diagnosis of tuberculosis (TB) develop and prove the reliability of an artificial intelligence (AI) software used for disease...
Quantitative Analysis of a Common Audio Similarity Measure
Creators: name: Jensen, Jesper Hojvang
name: Christensen, Mads Gaesboll
name: Ellis, Daniel P. W.
name: Jensen, Soren Holdt
Publisher: name: Columbia University
Year: 2009
Subjects: Electrical engineering
Sound

description: For music information retrieval tasks, a nearest neighbor classifier using the Kullback-Leibler divergence between Gaussian mixture models of songs' melfrequency cepstral coefficients is commonly used to match songs by timbre. In this paper, we analyze this distance measure analytically and experimentally by the use of synthesized MIDI files, and we find that it is highly sensitive to different instrument realizations. Despite the lack of theoretical foundation, it handles the multipitch case quite well when all pitches originate from the same instrument, but it has some weaknesses when different instruments play simultaneously. As a proof of concept, we demonstrate that a source separation frontend can improve performance. Furthermore, we have evaluated the robustness to changes in key, sample rate, and bitrate.
Sloppy Gear Mechanism for Coupled Stochastic Transportation: from anti-equilibrium flow to infinite selectivity
Creators: name: Slowey, Chase
name: Lu, Zhiyue
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Non-equilibrium transportation of particles through a restricted space (such as porous media or narrow channels) significantly differs from free space. With a simple model of two types of particles competing to transport via a passive single-lane channel connecting two chemical baths, we find two dynamical modes of transportation -- the dud mode and the ratchet mode. At the ratchet mode, the gradient flow of one type of particle forces the other into a transient anti-equilibrium flow against its gradient. At the dud mode, the two types of particles both flow according to their gradients. This counter-intuitive non-equilibrium effect can be explained by a sloppy gear mechanism. In addition to the anti-gradient flow observed in the ratchet mode, we find that the non-equilibrium sloppy gear mechanism suppresses the flow of one particle while allowing the flow for the other. This mechanism provides a general theoretical framework to explain and design the selective transportation of particles via passive channels.
Cosmological solutions with massive gravitons in the bigravity theory
Creators: name: Volkov, Mikhail S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present solutions describing homogeneous and isotropic cosmologies in the massive gravity theory with two dynamical metrics recently proposed in arXiv:1109.3515 and claimed to be ghost free. These solutions can be spatially open, closed, or flat, and at early times they are sourced by the perfect fluid, while the graviton mass typically manifests itself at late times by giving rise to a cosmological term. In addition, there are also exotic solutions, for which already at early times, when the matter density is high, the contribution of the graviton mass to the energy density is negative and large enough to screen that of the matter contribution. The total energy can then be negative, which may result in removing the initial singularity. For special parameter values there are also solutions for which the two metrics effectively decouple and evolve independently of each other. In the limit where one of the gravitational coupling constant vanishes, such special solutions reduce to those found in arXiv:1107.5504 within the theory where one of the metrics is flat.
description: 21 pages, 4 figures
CORBEL Delivery of Toolkit supporting community ontology mapping and development
Creators: name: Jupp, Simon
name: Parkinson, Helen
name: Goble, Carol
name: Juty, Nick
name: Boiten, Jan-Willem
name: Swertz, Morris
Publisher: name: Zenodo
Year: 2019
Subjects: Biomedical ontologies
Ontology mapping
Cross-referencing
Semantic infrastructures

description: This deliverable reports on the services that were developed for CORBEL to support access to ontologies and ontology mapping services. The service development has been driven by requirements from BMS ESFRIs in WP3 and 4 and international engagement. Tasks have included:

Developing a repository of biomedical ontologies that supports web based and API based access and visualisation of ontologies. This was undertaken within OLS, a recognised ‘Recommended Interoperability Resource’ in ELIXIR

	Extending and improving the Zooma repository of data to ontology mappings that can be used to predict ontology mappings based on prior curation knowledge
	Developing a new ontology cross-referencing service that allows users to map between ontologies and medical vocabularies from the UMLS
	Extending the BioBankUniverse service for granular cross biobank variable matching
	Development and refinement of tools to support the construction of new ontologies and application specific ontology views by domain experts that is being adopted by projects outside of CORBEL
	Improving APIs, query Interfaces and services comprising semantic infrastructure based on expert and user feedback from CORBEL partners and international users
"ALPOMISH" DOSTONIDA "SAFAR" VA "SINOV" MOTIVLARI
Creators: name: Chirmashboyev, Mohiraxon
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqola turkiy xalqlar xalq og`zaki ijodining yorqin namunasi bo`lgan "Alpomish" dostonida uchrovchi motivlar to`g`risida ko`plab ma'lumotlar beradi.
The Republican Party's Problem is not Going to be Easy to Fix
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: subject: Political science
subject: FOS: Political science

description: Although Obama lost the white vote by 20 percent, Romney did not only lose among African American, Latino, Asian, LGBT, Jewish and Muslim voters, but he lost all of these groups by margins of more than 2-1.  This speaks to the coming change in the Republican Party. Republican positions on abortion, contraception, marriage equality and the role of Christianity in every day civic and political life makes the party unpalatable to millions of voters, particularly those who are young, unmarried, LGBT or not Christian. If they are going to recover, the Republican party must change its message.
title: MR imaging of bizarre parosteal osteochondromatous proliferation (Nora lesion)
Creators: name: de la Iglesia Salas, Álvaro
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Cross-sectional study
subject: Retrospective
subject: Hyperplasia / Hypertrophy
subject: Developmental disease
subject: Education
subject: Diagnostic procedure
subject: Comparative studies
subject: Ultrasound
subject: MR
subject: CT
subject: Musculoskeletal soft tissue
subject: Extremities
subject: Bones
subject: Musculoskeletal

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Clinical, histological, plain radiograph and CT imaging findings of bizarre parosteal osteochondromatous proliferation (BPOP) have been thoroughly characterized. However, little scientific research regarding the MRI appearance of these rare lesions...
Semi- and Non-relativistic Limit of the Dirac Dynamics with External Fields
Creators: name: Fürst, Martin
name: Lein, Max
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We show how to approximate Dirac dynamics for electronic initial states by semi- and non-relativistic dynamics. To leading order, these are generated by the semi- and non-relativistic Pauli hamiltonian where the kinetic energy is related to $\sqrt{m^2 + ξ^2}$ and $ξ^2 / 2m$, respectively. Higher-order corrections can in principle be computed to any order in the small parameter v/c which is the ratio of typical speeds to the speed of light. Our results imply the dynamics for electronic and positronic states decouple to any order in v/c << 1. To decide whether to get semi- or non-relativistic effective dynamics, one needs to choose a scaling for the kinetic momentum operator. Then the effective dynamics are derived using space-adiabatic perturbation theory by Panati et. al with the novel input of a magnetic pseudodifferential calculus adapted to either the semi- or non-relativistic scaling.
description: 42 pages
Large-scale data systems at the National Center for Atmospheric Research (NCAR)
Creators: name: Kamrath, Anke
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2015
Subjects: subject: data transfer
subject: data sharing
subject: data archiving
subject: Big data

description: Presented at the National data integrity conference: enabling research: new challenges & opportunities held on May 7-8, 2015 at Colorado State University, Fort Collins, Colorado. Researchers, administrators and integrity officers are encountering new challenges regarding research data and integrity. This conference aims to provide attendees with both a high level understanding of these challenges and impart practical tools and skills to deal with them. Topics will include data reproducibility, validity, privacy, security, visualization, reuse, access, preservation, rights and management.
description: Anke Kamrath is the Director of Operations and Services, Computational and Information Systems Laboratory at the National Center for Atmospheric Research.
description: PowerPoint presentation given on May 8, 2015.
A-Rod, Teixeira and the Yankees' Future
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2012
Subjects: Recreation

description: Unfortunately for the Yankees, Alex Rodriguez is not the only aging slugger on the roster who no longer hits like he once did, but to whom they owe a lot of money. Teixeira is also under a large contract and performing poorly. Should either be traded?
Search for excited leptons in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The ATLAS detector is used to search for excited leptons in the electromagnetic radiative decay channel l* --> l+gamma. Results are presented based on the analysis of pp collisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 2.05/fb. No evidence for excited leptons is found, and limits are set on the compositeness scale Lambda as a function of the excited lepton mass m_l*. In the special case where Lambda = m_l*, excited electron and muon masses below 1.87 TeV and 1.75 TeV are excluded at 95% C.L., respectively.
description: 10 pages plus author list (22 pages total), 8 figures, 2 tables, revised author list, matches Physical Review D version
Bottlenecks and Breakthroughs: A Narrative Inquiry into the Storied Experiences of how School Administrators Understand their Efforts Towards Decolonization
Creators: name: Sarson, Andrea
Publisher: name: Werklund School of Education
Year: 2023
Subjects: subject: Decolonization
subject: Story
subject: Unlearning
subject: Settler identity
subject: Colonialism
subject: Leadership
subject: Narrative inquiry
subject: Education
subject: Education--Administration
subject: Education--Curriculum and Instruction

description: This research study was undertaken to offer a space to engage in conversation and to make sense of how school administrators understand their efforts toward decolonization. It evolved out of curiosity in how narratives have shaped and continue to reshape our current context of the curriculum, and how to best (re)consider the current knowledge structures that are present in schools. The purpose of this study is to come to a better understanding of how school administrators understand their role towards decolonizing education. The guiding question for this research was, what does it mean to live together well in this world, and what is the role of curriculum in it? Narrative inquiry as a methodology, offered, by way of interviews and written narratives, an opportunity to attend to the stories using the commonplaces of temporality, sociality and place. The field texts included research conversations transcripts, field notes, and journals. Three narrative accounts were co-composed, one for each participant. The use of narratives allowed participants to express their views and articulate their own interpretation of their lives and stories. After looking across the narrative accounts, three resonant threads were identified that highlighted the importance of understanding a Settler1 identity, of unlearning colonialism, engaging in sustained professional learning, and of embracing ambiguity. One conclusion arising from this study is that unlearning colonialism is an ongoing process.
title: Non-ischemic cardiomyopathies involving right ventricle: Evaluation with MRI
Creators: name: Goel, Archita
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Cardiac
subject: Anatomy
subject: Cardiac
subject: Cardiovascular system
subject: Echocardiography
subject: MR
subject: Education
subject: Imaging sequences
subject: Structured reporting
subject: Congenital
subject: Hyperplasia / Hypertrophy
subject: Metabolic disorders
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1. To describe the MRI findings of a normal right ventricle 2.To showcase patients with right ventricular disease in non-ischemic cardiomyopathies and discuss MRI features of the...
Patterns of domestication in the Compositae and beyond
Creators: name: Dempewolf, Hannes
Publisher: name: University of British Columbia
Year: 2012

description: Domestication is the process of evolutionary change that results in the phenotypic and genetic differences between a crop species and its ‘wild’ progenitor. Domesticated species vary widely in their phylogenetic diversity, diversity of uses, and degree of domestication. Here, we attempt to better understand the traits and processes that govern this diversity of domesticated species by taking a comparative view of domestication. First, we compare patterns of domestication in the Compositae family (chapter 2) and propose that the prevalence of secondary defense compounds, the lack of carbohydrates that can be digested by the human gut, and the predominantly mechanical or wind-dependent seed dispersal syndrome of the family are key reasons for the apparent paucity of crops in the Compositae family. We then report on the establishment of genomic tools and resources in the form of a library of expressed sequence tags, a set of microsatellite loci, and the full sequence of the chloroplast genome for one particular domesticated species in the Compositae, the oil-seed crop Noug (Guizotia abyssinica) (chapter 3). A combination of genotypic, phenotypic and eco-geographic analyses is then used to test whether high levels of crop-wild gene flow and/or unfavorable phenotypic correlations are the reason why noug appears to be only semi-domesticated (chapter 4). Even though we did not find evidence for either of these hypotheses, our data revealed evidence of local adaptation of noug cultivars to different precipitation regimes, as well as high levels of phenotypic plasticity, which may permit reasonable yields under diverse environmental conditions. We then suggest that domestication may also have been slowed by noug’s outcrossing mating system. The idea that transitions in mating systems and other reproductive barriers between crops and their wild progenitors play a role in domestication is then further explored in a systematic comparison of several crops of major economic importance within and beyond the Compositae family (chapter 5). The majority of such crops appear to indeed be isolated from their progenitors by one or more reproductive barriers, even in the absence of geographical isolation during domestication.
A Universal, Local Star Formation Law in Galactic Clouds, Nearby Galaxies, High-Redshift Disks, and Starbursts
Creators: name: Krumholz, Mark R.
name: Dekel, Avishai
name: McKee, Christopher F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: [abridged] While observations of Local Group galaxies show a very simple, local star formation law in which the star formation rate per unit area in each patch of a galaxy scales linearly with the molecular gas surface density, recent observations of both Milky Way molecular clouds and high redshift galaxies apparently show a more complicated relationship, in which regions of equal surface density can form stars at quite different rates. These data have been interpreted as implying either that different star formation laws apply in different circumstances, that the star formation law is sensitive to large-scale galaxy properties rather than local properties, or that there are high density thresholds for star formation. Here we collate resolved observations of Milky Way molecular clouds, kpc-scale observations of Local Group galaxies, and unresolved observations of both disk and starburst galaxies in the local universe and at high redshift. We show that all of these data are in fact consistent with a simple, local, volumetric star formation law. The apparent variations stem from the fact that the observed objects have a wide variety of 3D size scales and degrees of internal clumping, so even at fixed gas column density the regions being observed can have wildly varying volume densities. We provide a simple theoretical framework to remove this projection effect, and we show that all the data, from small Solar neighborhood clouds with masses ~10^3 Msun to sub-mm galaxies with masses ~10^11 Msun, fall on a single star formation law in which the SFR is simply ~1% of the molecular gas mass per local free-fall time. In contrast, proposed star formation laws in which the star formation timescale is set by the galactic rotation period or the SFR is linearly proportional to the gas mass above some density threshold fail to match at least some of the data.
description: 20 pages, 4, figures, 4 tables, emulateapj format, accepted to ApJ. This version fixes a minor error in equation 18; no other changes
title: Imaging of thoracic vasculitis: A contemporary review
Creators: name: Cornellas Escayola, Llúria
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Inflammation
subject: Haemorrhage
subject: Aneurysms
subject: Biopsy
subject: PET-CT
subject: MR
subject: CT
subject: Vascular
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: The aim of this poster is to review the main thoracic-involving vasculitis and to update some aspects concerning its classification, diagnosis, and...
The Supreme Court and Marriage Equality
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Political science
subject: FOS: Political science
subject: Law
subject: FOS: Law

description: This was a hugely important week for LGBT Americans as well as advocates for equality for all citizens because the Supreme Court heard cases regarding California's Proposition 8 as well as the Defense of Marriage Act (DOMA). It was also, however, a very important week for the Supreme Court. The Court may or may not decide to overturn both of these discriminatory pieces of legislation, but it is clear that the arc of history is again bending towards equality. LGBT Americans are winning; and those that would continue to seek to deny equality to all Americans are losing. This puts the Court in the position of either helping to bring about an inevitable, and positive, change, or of being conspicuous in support of bigoted laws and prejudices from another era.
title: Diffusion Tensor Imaging (DTI) in brainstem lesions - Planning and Prognostication
Creators: name: Radhakrishnan, Hariharaprakash
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Observational
subject: Retrospective
subject: Tissue characterisation
subject: Localisation
subject: MR-Diffusion/Perfusion
subject: MR
subject: Neuroradiology brain
subject: CNS
subject: Neuro
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 understand apparent diffusion coefficient and fractional anisotropy and how it works in diffusion tensor imaging - To know the physics behind tractography and different algorithms used - To see practical applications of diffusion tensor imaging...
title: Data integrity: a QA perspective
title: A quality assurance perspective
titleType: AlternativeTitle
Creators: name: Bens, Catherine
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2015
Subjects: research integrity

description: Presented at the National data integrity conference: enabling research: new challenges & opportunities held on May 7-8, 2015 at Colorado State University, Fort Collins, Colorado. Researchers, administrators and integrity officers are encountering new challenges regarding research data and integrity. This conference aims to provide attendees with both a high level understanding of these challenges and impart practical tools and skills to deal with them. Topics will include data reproducibility, validity, privacy, security, visualization, reuse, access, preservation, rights and management.
description: PowerPoint presentation given on May 7, 2015.
Magnetic helicity fluxes and their effect on stellar dynamos
Creators: name: Candelaresi, Simon
name: Brandenburg, Axel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Magnetic helicity fluxes in turbulently driven alpha^2 dynamos are studied to demonstrate their ability to alleviate catastrophic quenching. A one-dimensional mean-field formalism is used to achieve magnetic Reynolds numbers of the order of 10^5. We study both diffusive magnetic helicity fluxes through the mid-plane as well as those resulting from the recently proposed alternate dynamic quenching formalism. By adding shear we make a parameter scan for the critical values of the shear and forcing parameters for which dynamo action occurs. For this $αΩ$ dynamo we find that the preferred mode is antisymmetric about the mid-plane. This is also verified in 3-D direct numerical simulations.
description: 5 pages, 6 figures, proceedings of IAU Symp. 286, Comparative Magnetic Minima: characterizing quiet times in the Sun and stars
title: Entrapped acetabular labrum after posterior hip dislocation in children
Creators: name: Erb, Roy
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Musculoskeletal
subject: Musculoskeletal joint
subject: Paediatric
subject: Trauma
subject: Conventional radiography
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 be aware of the potential complication of an entrapped labrum after posterior hip dislocation in children To recognize the plain radiographic and MRI findings associated with an entrapped acetabular labrum To be familiar with the important...
A Perry or Bachmann Nomination May Not Be Good for Democrats
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Political science
subject: FOS: Political science

description: Rick Perry has shaken up the Republican presidential primary because he seems to be taking the mantle of Tea Party favorite and far right darling away from Michele Bachmann. Before Perry joined the race, Bachmann seemed to be the most likely to be the last Tea Party candidate standing against Mitt Romney. Now Perry is more likely to be in that position. On the issues, Perry is not more moderate than Bachmann. Both are fundamentalist extremists with radical anti -government views who have evinced little understanding of a modern state or economy an d demonstrated little interest in or knowledge of foreign affairs other than their belief in a strong America. Perry seems to have eclipsed Bachmann's popularity because he is less prone to gaffes than Bachmann, is slightly better at keeping his mouth shut sometimes and is enjoying something of a bump in the polls because he is the new candidate about whom voters may not yet know very much.
Promoting the adoption of sustainable agricultural production strategies in sub-Saharan smallholder farming system: the case of EWA BELT project
Creators: name: Laura Altea
name: Giovanna Seddaiu
name: Margherita Rizzu
name: Alberto Carletti
Publisher: name: Zenodo
Year: 2022

description: EWA BELT, an EU Horizon 2020 funded project, selected different sustainable intensification technologies with farmers and researchers in 6 African Countries such as: promotion of Neglected and Underutilized crop varieties, soil fertility, water and pest management practices and pre and post-harvest technologies. Technologies are being tested and farmer led research results will be scaled up through Farmer Field research Units (FFRUs). FFRUs are a co-learning spaces that integrate “experts” and farmers’ experiential and indigenous knowledge, where small-holder famers, researchers and other stakeholders exchange inputs, test and experiment directly on the field strategies to generate locally innovative agricultural solutions. Moreover, through data collection, surveys, focus groups and other participatory research methods Sustainable Intensification Indicators for the 5 domains will be developed for each group of technology. So far, 29 FFRUs have been created with a range of 1 to six FFRUs per country. A first set of Indicators of S.I. for the production, environment and economic domains have been identified, while social
description: other funding acknowledgements: Desertification Research Centre (NRD) of the University of Sassari.
What if the Republicans Lose in 2012?
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Political science
subject: FOS: Political science

description: A look in to what could happen if the Republican Party does not get elected in the 2012 election.

"With the 2012 presidential election still 16 months away, it is still far too early to know who will win, or even who the Republican candidate will be. Nonetheless, while the road to reelection will not be easy for President Obama, it is certainly possible that he will get reelected. If that happens, analysts will undoubtedly point to the recovering economy, relatively solid, if cautious, foreign policy pursued by Obama, and to the flawed candidacy of Obama's yet unknown Republican opponent. There will be some truth to all these explanations, but this should not obscure the extent to which this election, in a normal political context would be the Republicans to lose."
title: Technical Requirements for 1H MR Spectroscopy of the testes
Creators: name: Maliakas, Vasilios
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: MRI
subject: Genital / Reproductive system male
subject: MR-Spectroscopy
subject: Chemistry
subject: Education
subject: Physics
subject: Education and training
subject: Prospective
subject: Not applicable
subject: Performed at one institution

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The use of appropriate coil, adequate support and correct positioning of the scrotum are essential key elements in performing testicular 1 H MRS. The essential prerequisites for performing high quality spectroscopic measurements are: strength of...
title: Go Topless! A Rare View on Breast Infections
Creators: name: Morais, Rafaela
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Tropical diseases
subject: Inflammation
subject: Infection
subject: Screening
subject: Biopsy
subject: Abscess delineation
subject: MR
subject: Mammography
subject: CT
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: TEACHING POINTS To review the basic anatomy of the breasts. To discuss about the epidemiology, difficult clinical diagnoses and the role of diagnostic imaging methods in differential diagnosis of breasts infections. To raise awareness of rare causes...
The spanning $k$-trees, perfect matchings and spectral radius of graphs
Creators: name: Fan, Dandan
name: Goryainov, Sergey
name: Huang, Xueyi
name: Lin, Huiqiu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50

description: A $k$-tree is a spanning tree in which every vertex has degree at most $k$. In this paper, we provide a sufficient condition for the existence of a $k$-tree in a connected graph with fixed order in terms of the adjacency spectral radius and the signless Laplacian spectral radius, respectively. Also, we give a similar condition for the existence of a perfect matching in a balanced bipartite graph with fixed order and minimum degree.
description: 12 pages
PRIMUS: The dependence of AGN accretion on host stellar mass and color
Creators: name: Aird, James
name: Coil, Alison L.
name: Moustakas, John
name: Blanton, Michael R.
name: Burles, Scott M.
name: Cool, Richard J.
name: Eisenstein, Daniel J.
name: Smith, M. Stephen M.
name: Wong, Kenneth C.
name: Zhu, Guangtun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present evidence that the incidence of active galactic nuclei (AGNs) and the distribution of their accretion rates do not depend on the stellar masses of their host galaxies, contrary to previous studies. We use hard (2-10 keV) X-ray data from three extragalactic fields (XMM-LSS, COSMOS and ELAIS-S1) with redshifts from the Prism Multi-object Survey to identify 242 AGNs with L_{2-10 keV}=10^{42-44} erg /s within a parent sample of ~25,000 galaxies at 0.2
description: 26 pages, 12 figures, emulateapj format, accepted for publication in ApJ
title: Destination China: Authoring in the Media of Our Time
title: A Poster from the Imperial Oil Project, Faculty of Education, University of Calgary
titleType: AlternativeTitle
Creators: name: Green, Thea
name: Jacobsen, Michele
name: Sedor, Anita
Publisher: name: Werklund School of Education
Year: 2003
Subjects: Multi-Modal Literacy
Learning Technology
Media studies
Interdisciplinary

description: Destination China began as an inquiry into how literacy, and its meaning, is changing in today's technology-enabled society. Students in a grades four-five split class developed a telementoring relationship with Canadian author David Bouchard to investigate Chinese folktales and legends, and to being their own writing journeys. Students also connected with student teachers and learners in China to dialogue about Chinese culture and history. They then used various technology to create film trailers, oil pastel drawings and tri-fold brochures to represent their understandings of this culture.
Legitimate (multilevel) crisis management from the perspective of human rights, rights and position of minorities, and non-discrimination: Conceptual and methodological issues, and literature review
Creators: name: Žagar, Mitja
Publisher: name: Zenodo
Year: 2023

description: The Covid-19 pandemic and crisis management dominate media and scholarly literature since 2020. The literature review shows that human rights, their limitation(s) and suspension as well as impact(s) of crisis management on democracy, legitimacy, diverse (social) minorities, marginalized groups and border communities are often mentioned, but seldom focused on. LEGITIMULT project on legitimate democratic crisis governance in multilevel systems combines multi-, inter- and transdisciplinary approaches, qualitative and quantitative research methods in studying those complex and dynamic phenomena. As a deliverable of this project, the paper focuses on the impact(s) of crisis management, policies and measures (particularly restrictive and repressive ones), on human rights, minority rights and protection of minorities as well as on the principle of non-discrimination. Qualitative approaches and methods prove the most suitable for studying the perceptions of persons belonging to diverse minorities on democracy and legitimacy of crisis management and governance in respective environments.
Ultrapassando o debate entre convergência e divergência urbanas: a arquitetura e o urbanismo em um contexto global
Creators: name: Irazabal Zurita, Clara E.
Publisher: name: Columbia University
Year: 2003
Subjects: City planning

description: Alguns pesquisadores argumentam que as cidades do Terceiro e do Primeiro Mundo estão se tornando cada vez mais semelhantes. Outros discordam dessa teoria da convergência, alegando que tais similaridades são apenas superficiais. O presente trabalho sustenta que as discrepâncias entre as duas teorias são mais aparentes que reais e propõe que se aborde a convergência mais no âmbito das soluções do que no âmbito dos problemas, chamando a atenção para o papel da participação cidadã e da governança urbana em bem-sucedidas experiências em cidades tanto do Terceiro Mundo como do Primeiro Mundo. O texto também reflete sobre a arquitetura e o urbanismo da convergência, tais como percebidos nas novas cidades globais, independentemente das divisões Norte/Sul. Por fim, são apresentadas algumas idéias sobre as potencialidades da arquitetura e do urbanismo da divergência como expressões de mudanças nas demandas sociais e na formação de identidades no âmbito urbano.
title: Complications and unusual cases of cholecystitis : Imaging findings
Creators: name: allagui, houaida
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Diagnostic or prognostic study
subject: Not applicable
subject: Infection
subject: Acute
subject: Abscess
subject: Drainage
subject: Complications
subject: Biopsy
subject: Ultrasound
subject: CT
subject: Emergency
subject: Biliary Tract / Gallbladder
subject: Anatomy
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To know the pathological anatomy of gallbladder in CT and US To know the pathophysiology, clinical presentation and imaging findings of acute complicated cholecystitis To recognize rare forms of cholecystis:Emphysematous, Gangrenous, Hemorrhagic...
Data management and the research record in research misconduct investigations
Creators: name: Busch, Kenneth L.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2015
Subjects: research misconduct
investigation

description: Presented at the National data integrity conference: enabling research: new challenges & opportunities held on May 7-8, 2015 at Colorado State University, Fort Collins, Colorado. Researchers, administrators and integrity officers are encountering new challenges regarding research data and integrity. This conference aims to provide attendees with both a high level understanding of these challenges and impart practical tools and skills to deal with them. Topics will include data reproducibility, validity, privacy, security, visualization, reuse, access, preservation, rights and management.
description: Kenneth Busch is the Senior Investigative Scientist, Office of Inspector General, National Science Foundation. He began at NSF OIG in 2002 after a research career in mass spectrometry at several U.S. universities. He no longer has the data from his first research publication that appeared in 1978, and his ongoing quest for world domination is being delayed because his cell phone has a rotary dial. The Research Integrity and Administrative Investigations Division is primarily responsible for investigating allegations that, if substantiated, would result in administrative action rather than civil or criminal prosecution. These include allegations of research misconduct relating to NSF proposals and awards; certain types of employee misconduct; misuse of program funds; violations of NSF regulations, policies or directives; and other issues that are not of a civil/criminal nature.
description: PowerPoint presentation given on May 8, 2015.
Enumeration of Golomb Rulers and Acyclic Orientations of Mixed Graphs
Creators: name: Beck, Matthias
name: Bogart, Tristram
name: Pham, Tu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: A \emph{Golomb ruler} is a sequence of distinct integers (the \emph{markings} of the ruler) whose pairwise differences are distinct. Golomb rulers can be traced back to additive number theory in the 1930s and have attracted recent research activities on existence problems, such as the search for \emph{optimal} Golomb rulers (those of minimal length given a fixed number of markings). Our goal is to enumerate Golomb rulers in a systematic way: we study [g_m(t) := # {\x \in \Z^{m+1} : \, 0 = x_0 < x_1 < ... < x_{m-1} < x_m = t, \text{all} x_j - x_k \text{distinct}},] the number of Golomb rulers with $m+1$ markings and length $t$. Our main result is that $g_m(t)$ is a quasipolynomial in $t$ which satisfies a combinatorial reciprocity theorem: $(-1)^{m-1} g_m(-t)$ equals the number of rulers $\x$ of length $t$ with $m+1$ markings, each counted with its \emph{Golomb multiplicity}, which measures how many combinatorially different Golomb rulers are in a small neighborhood of $\x$. Our reciprocity theorem can be interpreted in terms of certain mixed graphs associated to Golomb rulers; in this language, it is reminiscent of Stanley's reciprocity theorem for chromatic polynomials. Thus in the second part of the paper we develop an analogue of Stanley's theorem to mixed graphs, which connects their chromatic polynomials to acyclic orientations.
description: 10 pages, 3 figures, 2 tables
Background Checks Should Not Be the End of the Gun Discussion
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2013
Subjects: subject: Political science
subject: FOS: Political science
subject: Public policy (Law)

description: At the center of the gun debate in Washington is the issue of background checks. Supporters of regulating gun ownership would like prospective gun owners to pass a background check, while opponents believe this would be an invasion of privacy and lead to a national registry of guns. It is worth noting, that a few months after the horrific killings at Sandy Hook, we are now debating whether somebody buying a gun should be able to avoid the scrutiny that many volunteer youth sports coaches now encounter. This is a long way from passing meaningful laws to keep our children, parents and each other safe from wanton shootings.
More than a matter of time: Assessment Accommodation for Spatial Ability Using Static and Dynamic Images
Creators: name: Loftus, Jay
name: Wilson, Tim
name: Barber, Cassandra
name: Jacobsen, Michele
Publisher: name: Werklund School of Education
Year: 2019
Subjects: Computer-based Assessments
Dynamic Images
Learner Accommodations
Learning Technology
Online Learning
Spatial Ability

description: Background: In the era of computer-based assessments and the use of dynamic images to enhance learning we need to be cautious of the accommodations we provide learners who require assistance. Educators and accommodation officials often use additional time to assist students, but this might not be effective. The present study examines the differences in testing times amongst high and low spatial ability learners using static and dynamic images for testing purposes to explore the relationship of testing time and test score. Methods: Twenty-nine participates volunteered to participate in this study. Correlation, independent group t-tests, and analysis of covariance were used to examine differences in time required to complete the learning tasks by high and low spatial ability learners. Performance scores amongst the groups were also analyzed. Results: Spatial ability was not statistically associated to a learner’s completion time during two visual learning tasks (F(1, 26)=1.286, p≥0.05). While , spatial ability did not have a significant effect on performance during a static visual learning task, statistically significant differences were observed in the dynamic task (t(27)=3.342, p≤0.01). Overall, learners with high spatial ability had higher overall performance scores (M=71.98, SD=22.46) on dynamic visual learning tasks, when compared to low spatial ability learners (M=47.57, SD=16.10). Approximately, 31.7% of the total variability in performance during the dynamic task can be accounted for by spatial ability (F(1, 27)=12.045, p≤0.01). Conclusion: Granting additional time on visual tasks using dynamic images does not help learners with lower spatial ability. Accommodations using images for assessment should be given through the use of alternative perspectives.
Neural network reconstructions for the Hubble parameter, growth rate and distance modulus
Creators: name: Gómez-Vargas, Isidro
name: Esquivel, Ricardo Medel
name: García-Salcedo, Ricardo
name: Vázquez, J. Alberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: This paper introduces a new approach to reconstruct cosmological functions using artificial neural networks based on observational measurements with minimal theoretical and statistical assumptions. By using neural networks, we can generate computational models of observational datasets, and then we compare them with the original ones to verify the consistency of our method. This methodology is applicable to even small-size datasets. In particular, we test the proposed method with data coming from cosmic chronometers, $fσ_8$ measurements, and the distance modulus of the Type Ia supernovae. Furthermore, we introduce a first approach to generate synthetic covariance matrices through a variational autoencoder, using the systematic covariance matrix of the Type Ia supernova compilation.
description: 20 pages, 8 figures; matches the version published in EPJC
Berry Phase Generation and Measurement in a Single Trapped Ion
Creators: name: De Munshi, D.
name: Mukherjee, M.
name: Dutta-Roy, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this work, we propose a new design of an ion trap which can enable us to generate state specific Berry phase in a single trapped ion. Such a design will enable us to study the physics at the boundary of abelian and non-abelian symmetries and can also have significant impact in quantum computation.
Interface-Roughening Phase Diagram of the Three-Dimensional Ising Model for All Interaction Anisotropies from Hard-Spin Mean-Field Theory
Creators: name: Çağlar, Tolga
name: Berker, A. Nihat
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The roughening phase diagram of the d=3 Ising model with uniaxially anisotropic interactions is calculated for the entire range of anisotropy, from decoupled planes to the isotropic model to the solid-on-solid model, using hard-spin mean-field theory. The phase diagram contains the line of ordering phase transitions and, at lower temperatures, the line of roughening phase transitions, where the interface between ordered domains roughens. Upon increasing the anisotropy, roughening transition temperatures settle after the isotropic case, whereas the ordering transition temperature increases to infinity. The calculation is repeated for the d=2 Ising model for the full range of anisotropy, yielding no roughening transition.
description: Published version. 4 pages, 5 figures