cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Дискретная математика
Creators: name: ELS IPR BOOKS
Publisher: name: Северо-Кавказский федеральный университет
Year: 2023

description: Пособие представляет курс лекций, подготовленный в соответствии с ФГОС ВО, в нём раскрываются основные принципы и особенности изучения дискретной математики. Во второе издание пособия внесены существенные добавления, уточнения и определения, обновлены и добавлены задания и упражнения, библиография. Предназначено для студентов, обучающихся по направлению подготовки 02.03.01 Математика и компьютерные науки» (бакалавриат), а также для студентов направлений, которые изучают дисциплину «Дискретная математика».
A New President for Urban America
Creators: name: Mitchell, Lincoln A.
Publisher: name: Columbia University
Year: 2009
Subjects: subject: Political science
subject: FOS: Political science

description: An Obama presidency is an opportunity for our political leadership, of both parties, to stop denigrating big cities, and ignoring the positive role they play in our political life, and to begin to recognize the contributions cities can make to solving the problems we all face.
Running Pattern Recognition in a Comfortable and an Uncomfortable Shoe Condition
Creators: name: Manz, Sabina
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: running
subject: pattern recognition
subject: comfort
subject: shoes
subject: inertial measurement units
subject: Education--Sciences
subject: Education--Technology
subject: Engineering--Biomedical

description: The diverse development of running shoes has mostly been driven by three functional factors: reducing injury risk, increasing performance, and increasing perceived comfort. The few studies that focused on comfort provide contradicting results. Comfort is a subjective impression, different for every individual, and is speculated to be one of the most important features of a running shoe, however, it is not well understood or quantifiable. As a result, comfort and its relationship to running biomechanics has not been established. The purpose of this study was to (a) distinguish movement patterns while running in a comfortable shoe condition from movement patterns while running in an uncomfortable shoe condition, (b) determine if these patterns are localized to a specific body segment, and (c) determine which classification tool (linear or spherical) yields the most conclusive results. The movement patterns while running in two different shoes were compared and classified using a support vector machine and spherical classification. The classifications were performed using accelerations and angular velocities from all five sensor locations as well as using subsets of the data. The highest classification (61.88%) was found using spherical classification and a subset of the data. Both classification tools resulted in low success rates. The running kinematics in this study were unaffected by a change in comfort. Keywords: running, pattern recognition, comfort, shoes, inertial measurement units
The physical basis of natural units and truly fundamental constants
Creators: name: Hsu, Leonardo
name: Hsu, Jong-Ping
Publisher: name: arXiv
Year: 2011
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The natural unit system, in which the value of fundamental constants such as c and h are set equal to one and all quantities are expressed in terms of a single unit, is usually introduced as a calculational convenience. However, we demonstrate that this system of natural units has a physical justification as well. We discuss and review the natural units, including definitions for each of the seven base units in the International System of Units (SI) in terms of a single unit. We also review the fundamental constants, which can be classified as units-dependent or units-independent. Units-independent constants, whose values are not determined by human conventions of units, may be interpreted as inherent constants of nature.
description: 17 pages, to be published in European Physical Journal-Plus, The final publication is available at www.epj.org
Manas Hysteria
Creators: name: Cooley, Alexander A.
Publisher: name: Columbia University
Year: 2010
Subjects: International relations

description: Manas air base, located near Bishkek, has been an important hub supporting the war effort in Afghanistan since the U.S. military opened it in December 2001. Since then, Manas's operations have been threatened by political instability more than once. The root of these recurring basing headaches lies in the fact that the United States simply lacks the authority to establish a military presence in Central Asia. But paying off the Kyrgyz is a short-term solution that will backfire in the long term. Instead, to protect Manas further down the road, the United States must convince the Kyrgyz people that it is interested in more than a transactional relationship.
title: CTO-PCI impact on Stress-CMR detected ischemia: a single center prospective evaluation
Creators: name: Corridore, Antonella
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Prospective
subject: Tissue characterisation
subject: Outcomes
subject: Image verification
subject: Outcomes analysis
subject: Imaging sequences
subject: MR-Diffusion/Perfusion
subject: MR
subject: Cardiovascular system
subject: Cardiac

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Coronary ischemia can be non-invasively evaluated with Adenosine stress Cardiac Magnetic Resonance (CMR) , also in patients eligible for chronic total occlusion percutaneous coronary intervention (CTO-PCI). Adenosine Stress CMR enables to evaluate...
Ανάλυση Δεδομένων Κοινωνικών Δικτύων μη κερδοσκοπικών & φιλανθρωπικών οργανισμών. Μια συγκριτική μελέτη περιπτώσεων
Creators: name: Σαρηπανίδου, Ευγενία Θρασύβουλου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Μέσα Κοινωνικής Δικτύωσης
Ανάλυση Μέσων Κοινωνικής Δικτύωσης
Μη κερδοσκοπικοί οργανισμοί
Social Media
Social Media Analytics
Nonprofit organizations

description: Σκοπός της παρούσας διπλωματική εργασίας είναι η διερεύνηση της χρήσης των Μέσων Κοινωνικής Δικτύωσης και της Ανάλυσης Μέσων Κοινωνικής Δικτύωσης στους μη κερδοσκοπικούς και φιλανθρωπικούς οργανισμούς. Αρχικά, παρέχεται μια ολοκληρωμένη επισκόπηση των μέσων κοινωνικής δικτύωσης, συμπεριλαμβανομένου του ορισμού τους, των κατηγοριών και των δημοφιλέστερων πλατφορμών. Ακολούθως, εμβαθύνει στην έννοια της ανάλυσης των μέσων κοινωνικής δικτύωσης, συζητώντας τον ορισμό της, τις κατηγορίες, την ανάλυση συναισθήματος και παρουσιάζοντας διάφορα εργαλεία παρακολούθησης και ανάλυσης των μέσων κοινωνικής δικτύωσης. Στη συνέχεια, διερευνάται η αξιοποίηση των μέσων κοινωνικής δικτύωσης από μη κερδοσκοπικούς οργανισμούς, εξετάζοντας τα εργαλεία και τα οφέλη που προσφέρουν ορισμένες από τις πιο δημοφιλής πλατφόρμες στον μη κερδοσκοπικό τομέα. Τέλος, με τη χρήση ενός από τα εργαλεία social media analytics, παρουσιάζεται μία συγκριτική μελέτη περιπτώσεων. Αρχικά, αναλύεται η παρουσία του μη κερδοσκοπικού οργανισμού ΕΛΕΠΑΠ Θεσσαλονίκης στο διαδίκτυο και τα μέσα κοινωνικής δικτύωσης. Στη συνέχεια πραγματοποιείται σύγκριση αυτής με δύο ομόλογους και ισομεγέθεις οργανισμούς και τέλος, μελετάται η διαδικτυακή παρουσία δύο κορυφαίων φιλανθρωπικών οργανισμών στην Ελλάδα.
description: The purpose of this thesis is to research the use of Social Media and Social Media Analysis in non-profit and charitable organizations. First, a comprehensive overview of social media is provided, including its definition, categories and most popular platforms. It then delves into the concept of social media analytics, discussing its definition, categories, sentiment analysis and presenting various social media monitoring and analysis tools. Next, it explores the use of social media by nonprofits, examining the tools and benefits offered by some of the most popular platforms in the nonprofit sector. Finally, using one of the social media analysis tools, a comparative case study is presented. First, the presence of the non-profit organization ELEPAP Thessaloniki on the internet and social media is analyzed. Then, it is compared with two peer organizations and finally, the online presence of two leading charitable organizations in Greece is studied.
Grain refinement and partitioning of impurities in the grain boundaries of a colloidal polycrystal
Creators: name: Ghofraniha, Neda
name: Tamborini, Elisa
name: Oberdisse, Julian
name: Cipelletti, Luca
name: Ramos, Laurence
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the crystallization of a colloidal model system in presence of secondary nanoparticles acting as impurities. Using confocal microscopy, we show that the nanoparticles segregate in the grain boundaries of the colloidal polycrystal. We demonstrate that the texture of the polycrystal can be tuned by varying independently the nanoparticle volume fraction and the crystallization rate, and quantify our findings using standard models for the nucleation and growth of crystalline materials. Remarkably, we find that the efficiency of the segregation of the nanoparticles in the grain-boundaries is determined solely by the typical size of the crystalline grains.
description: accepted for publication in Soft Matter
title: Shear Wave Elastrography (SWE): An Initial Experience in Detection of Hepatic Fibrosis and Cirrhosis
Creators: name: Ali, Dr Muhammad
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: GI Tract
subject: Gastrointestinal tract
subject: Liver
subject: Ultrasound physics
subject: Ultrasound
subject: Diagnostic procedure
subject: Cirrhosis
subject: Retrospective
subject: Cross-sectional study
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Chronic liver disease (CLD) affects millions of people worldwide and is frequently encountered in daily practice. There are various etiologies of CLD, hepatitis C virus infection being the leading cause 1,7 .Due to chronic liver injury,the liver...
Exciton-mediated photothermal cooling in GaAs membranes
Creators: name: Xuereb, André
name: Usami, Koji
name: Naesby, Andreas
name: Polzik, Eugene S.
name: Hammerer, Klemens
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Cooling of the mechanical motion of a GaAs nano-membrane using the photothermal effect mediated by excitons was recently demonstrated by some of us [K. Usami, et al., Nature Phys. 8, 168 (2012)] and provides a clear example of the use of thermal forces to cool down mechanical motion. Here, we report on a single-free-parameter theoretical model to explain the results of this experiment which matches the experimental data remarkably well.
description: 13 pages, 4 figures
title: Blood, Muscle and Liver: Application to Iodine Contrast Agent Bias Compensation for Incidental Osteoporosis Screening using Quantitative Computed Tomography
Creators: name: Timm, Wolfram
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Demineralisation-Bone
subject: Screening
subject: Contrast agent-intravenous
subject: Computer Applications-Detection, diagnosis
subject: PACS
subject: CT
subject: Musculoskeletal bone
subject: Contrast agents
subject: Musculoskeletal

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: In a screening setting existing CT image data obtained in clinical routine can be, for the benefit of the patients, exploited with regard to a status of bone mineral density,if the impact of the frequently used iodine based contrast agent is...
Predictive Analysis and Recommendation for Managing Risk and Avoiding Hazard in Chemical and Oil & Gas Industrial Infrastructures
Creators: name: Polat, Serhan
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Computer Science

description: Chemical processing industrial infrastructures such as oil & gas plants are operated with the risk of hazardous events which may lead to casualties, economic and/or environmental consequences. Fortunately, a variety of devices and mechanisms are already available or rapidly emerging to capture data which may be used to develop techniques that may assist in issuing timely hazard alerts. This would help to avoid or prevent the hazard and hence save lives, the environment and the economy. Thus, the aim of this thesis is to develop an approach capable of analyzing the reports data captured after operations of infrastructure which can be used to guide domain experts in handling various causes and consequences of hazards. Available data may be publicly available or may exist in private repositories of processing companies. The latter data may not be accessible outside the company premises. However, the data available for this thesis has been crawled from publicly available data which exists as reports in various formats varying from plain text, semi-structured to structured. The crawled reports have been preprocessed using natural language processing techniques. Domain ontology has been used to guide the whole processes of clustering, and classification and a multiagent system have been integrated into the developed approach. Utilizing a multiagent system in the process allows for multiple perspectives to be incorporated into the process. These aspects are represented by independent agents who collaborate and negotiate to reach a consensus. The developed approach has been successfully applied to some publicly available gas and oil infrastructure hazard related data. The reported results may be used to issue recommendations to use certain safeguards to reduce the risk level in the processes.
title: Neuartige Funktionsmaterialien auf Basis von funktionalisierten Poly(siloxanen) und Poly(isonitrilen) zum Einsatz in flüssigphasenprozessierten OLEDs
Creators: name: Stadtmüller, Christian
Publisher: name: UNSPECIFIED
Year: 2023

description: Diese Dissertation behandelt die Entwicklung von Funktionsmaterialien auf Basis von Poly(siloxanen) und Poly(isonitrilen) für den Einsatz in flüssigphasenprozessieren OLEDs. Die Poly(siloxane) wurden dabei polymeranalog funktionalisiert mit verschiedenen Lochleitern und Emittern sowie einem Quervernetzer. Die erhaltenen quervernetzbaren Copolymer wurden dann in ihren Eigenschaften untersucht vor allem im Bezug auf ihre Lösungsmittelresistenz und die Performance in einem OLED-Bauteil. Die Oxetane als Quervernetzer zeigten dabei eine bessere Lösungsmittelresistenz als das Diels-Alder-System. Das OLED-Bauteil zeigte für eine erste proof-of-concept OLED eine gute Performance. Für die Poly(isonitrile) konnten die entsprechenden Monomere und Copolymere mit Lochleitern und Quervernetzern hergestellt werden, jedoch gestalteten sich eine weitere Untersuchung schwierig, da die Löslichkeit der Polymere stark eingeschränkt war.
title: T2 mapping to evaluate the effectiveness of Platelet Rich Plasma injection for tendinopathy: our preliminary results
Creators: name: De Cataldo, Camilla
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Prospective
subject: Outcomes
subject: Treatment effects
subject: Outcomes analysis
subject: MR
subject: Musculoskeletal soft tissue
subject: Musculoskeletal

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Platelet-rich plasma (PRP) is a derivative of the patient’s own blood (autologous blood) that contains a supraphysiological concentration of platelets, currently used to contribute to injury healing by stimulating angiogenesis, cell proliferation,...
Basing Headaches: Why US Overseas Deployments Are Becoming Increasingly Contentious
Creators: name: Cooley, Alexander A.
Publisher: name: Columbia University
Year: 2010
Subjects: International relations
Armed Forces

description: Over the last few years, we have seen significant protests against the US basing presence erupt worldwide. "Base politics" such as this are intimately connected to local political developments. US planners nevertheless can certainly draw some important lessons about how to minimize political disputes over current and future overseas facilities.
Expanders and Property A
Creators: name: Khukhro, A.
name: Wright, N. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We give a cohomological characterisation of expander graphs, and use it to give a direct proof that expander graphs do not have Yu's property A.
Post-Somalia Reform in the Canadian Armed Forces: Leadership, Education, and Professional Development
Creators: name: Domansky, Katie
Publisher: name: Arts
Year: 2018
Subjects: subject: History--Canadian
subject: History--Military
subject: Military Studies
subject: Political Science--International Law and Relations

description: After the “Somalia Affair” of the early 1990s, a government investigation concluded that the Canadian Armed Forces (CAF) had become dysfunctional as a professional military force and needed to be comprehensively reformed. It was perceived to be a deeply-flawed institution whose soldiers were ill-prepared, without discipline, and lacking leadership, leading to systemic breakdown and pointing clearly to an inappropriate organizational culture. The subsequent reform movement initiated by the government in 1997 to address these perceived problems covered a range of issues, but a critical focus was the need to redress the failure of military leadership, alter the way in which the Canadian military perceives of itself as a professional organization, and to inculcate an ethos appropriate to the CAF. This dissertation analyzes that reform process, applying concepts of military innovation and change, organizational culture, and organizational learning to determine which factors had the greatest influence on the introduction and process of change in the post-Somalia context. It assesses the degree to which the reforms specifically dedicated to officer training, education, and professional development have been implemented and the impact they have had on the CAF as an institution. Ultimately, it concludes that the CAF is a fundamentally different institution today than it was when the post-Somalia reform program was first launched. This is undoubtedly a result of its engagement with the reforms and efforts made to introduce new concepts, values, narratives, and behaviours into CAF practices, procedures, and expectations. While it is still not clear that the CAF has completely institutionalized all of the intended changes, a shift in culture has occurred, improvements can be identified, and the process of change and introspection remains ongoing.
title: Assessing the clinical value of aortic calcifications in uncomplicated type-B aortic dissection
Creators: name: Willemink, Martin
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Multicentre study
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Calcifications / Calculi
subject: Outcomes analysis
subject: CT-Angiography
subject: CT
subject: Arteries / Aorta
subject: Vascular

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Morphologic information contained in modern high-resolution imaging data may improve risk prediction for late adverse events (LAE) in patients with uncomplicated Stanford type-B aortic dissection (TBAD). The value of aortic wall calcifications has...
Spuler, Bertold
Creators: name: Ende, Werner
name: Fragner, Bert
name: Riedel, Dagmar A.
Publisher: name: Columbia University
Year: 2010
Subjects: Islamic civilization
Islam--Customs and practices

description: Spuler, Bertold (b. Karlsruhe, Germany, 5 December 1911; d. Hamburg, 6 March 1990), scholar of East European history and Oriental studies. Among his many publications are important works on the history of the Iranian lands from the 7th century CE onwards.
title: Prediction of high-stage liver fibrosis and its severity using contrast enhancement ratio at the hepatobiliar phase and correlation with hepatic function parameters.
Creators: name: Wypchło, Lukasz
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Case-control study
subject: Retrospective
subject: Cirrhosis
subject: Outcomes analysis
subject: MR
subject: Liver
subject: Abdominal Viscera

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Liver fibrosis is a reaction of stellate cells for chronic inflammation caused by hepatitis B or C virus and many other causes. The fibrosis leads to cirrhosis, portal hypertension and eventually can be fatal. Diagnostic imagingmethods, such as...
Physical process first law and increase of horizon entropy for black holes in Einstein-Gauss-Bonnet gravity
Creators: name: Chatterjee, Ayan
name: Sarkar, Sudipta
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish the physical process version of first law by studying small perturbations of a stationary black hole with regular bifurcation surface in Einstein-Gauss-Bonnet (EGB) gravity. Our result shows that when the stationary black hole is perturbed by a matter stress energy tensor and finally settles down to a new stationary state, the Wald entropy increases as long as the matter satisfies null energy condition.
description: Some more typos corrected. Accepted for publication in Phys. Rev. Lett
Racial Disparities and Predictors of Functioning in Schizophrenia
Creators: name: Elliott, Tonya
name: Halverson, Tate F.
name: Merritt, Carrington C.
name: Pedersen, Cort A.
name: Penn, David L.
name: Jarskog, L. Fredrik
Publisher: name: American Psychological Association (APA)
Year: 2023

description:
Black Americans are diagnosed with schizophrenia spectrum disorders at more than twice the rate of White individuals and experience significantly worse outcomes following diagnosis. Little research has examined specific factors that may contribute to worse functional outcomes among Black Americans diagnosed with schizophrenia. One approach to understanding why racial disparities emerge is to examine established predictors of functioning in this population: neurocognition, social cognition, and symptom severity. The present study aims to broaden existing literature on racial differences within these domains by (a) examining racial differences in functioning and these established predictors of functioning (i.e., neurocognition, social, and symptom severity) and (b) investigating whether cognition and symptom domains similarly predict functioning between Black and White Americans with schizophrenia. Sixty-six participants' baseline neurocognition, social cognition, symptom severity, and functioning were assessed. Black participants demonstrated lower neurocognition scores and higher levels of disorganized symptoms relative to White participants. No racial differences in functioning or social cognition were observed. Further, race did not moderate the relationship between any of these established predictors and functioning outcomes. The largely nonsignificant differences in known predictors of functioning highlight the need to explore further domains that may be more relevant for understanding racial disparities in schizophrenia. Considering that psychosocial treatments for schizophrenia spectrum disorders often focus on cognition, these results underscore the importance of identifying whether these domains or other treatment targets may be better in addressing racial disparities in functioning. Possible areas of exploration for future work (e.g., structural factors, racism-related stress) are discussed.
The profitability of inorganic fertilizer use in smallholder maize production in Tanzania: Implications for alternative and complementary strategies to improve smallholder maize productivity
Creators: name: Mather, David
name: Minde, Isaac
name: Waized, Betty
name: Ndyetabula, Daniel
name: Temu, Anna
Publisher: name: Gates Open Research
Year: 2019

description: The profitability of inorganic fertilizer use in smallholder maize production in Tanzania: Implications for alternative and complementary strategies to improve smallholder maize productivity
title: Interobserver agreement and diagnostic accuracy of nine CT signs of internal hernia in laparoscopic Roux-en-Y gastric bypass
Creators: name: Lozano Ros, Marina
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Retrospective
subject: Hernia
subject: Diagnostic procedure
subject: CT
subject: Gastrointestinal tract
subject: Emergency
subject: Abdomen
subject: Abdominal Viscera

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Postoperative internal hernia (IH) reaches figuresof morbidity and mortalityup to 4% (1), despite refinements in surgical technique. Its radiological diagnosis is tricky, being computed tomography(CT) the imaging modality of choice for this entity....
KeyNote: Trust Management for Public-Key Infrastructures
Creators: name: Blaze, Matt
name: Feigenbaum, Joan
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 1998
Subjects: Computer science

description: This paper discusses the rationale for designing a simple trust-management system for public-key infrastructures, called KeyNote. The motivating principles are expressibility, simplicity, and extensibility. We believe that none of the existing public-key infrastructure proposals provide as good a combination of these three factors.
Affleck-Dine dynamics and the dark sector of pangenesis
Creators: name: von Harling, Benedict
name: Petraki, Kalliopi
name: Volkas, Raymond R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Pangenesis is the mechanism for jointly producing the visible and dark matter asymmetries via Affleck-Dine dynamics in a baryon-symmetric universe. The baryon-symmetric feature means that the dark asymmetry cancels the visible baryon asymmetry and thus enforces a tight relationship between the visible and dark matter number densities. The purpose of this paper is to analyse the general dynamics of this scenario in more detail and to construct specific models. After reviewing the simple symmetry structure that underpins all baryon-symmetric models, we turn to a detailed analysis of the required Affleck-Dine dynamics. Both gravity-mediated and gauge-mediated supersymmetry breaking are considered, with the messenger scale left arbitrary in the latter, and the viable regions of parameter space are determined. In the gauge-mediated case where gravitinos are light and stable, the regime where they constitute a small fraction of the dark matter density is identified. We discuss the formation of Q-balls, and delineate various regimes in the parameter space of the Affleck-Dine potential with respect to their stability or lifetime and their decay modes. We outline the regions in which Q-ball formation and decay is consistent with successful pangenesis. Examples of viable dark sectors are presented, and constraints are derived from big bang nucleosynthesis, large scale structure formation and the Bullet cluster. Collider signatures and implications for direct dark matter detection experiments are briefly discussed. The following would constitute evidence for pangenesis: supersymmetry, GeV-scale dark matter mass(es) and a Z' boson with a significant invisible width into the dark sector.
description: 51 pages, 7 figures; v2: minor modifications, comments and references added; v3: minor changes, matches published version
title: CMR indication for percutaneous revascularization of coronary Chronic Total Occlusion (CTO): the key role of the radiology in the CTO management
Creators: name: Cobianchi Bellisari, Flavia
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Prospective
subject: Outcomes
subject: Outcomes analysis
subject: MR
subject: Cardiac

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Chronic total occlusion (CTO) of one or more arteries is found in about 25% of patients with known or suspected coronary artery disease. Definition and quantification of significative inducible perfusion defect and myocardial viability for an...
A comparison of analysis techniques for extracting resonance parameters from lattice Monte Carlo data
Creators: name: Giudice, Pietro
name: McManus, Darran
name: Peardon, Mike
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Different methods for extracting resonance parameters from Euclidean lattice field theory are tested. Monte Carlo simulations of the O(4) non-linear sigma model are used to generate energy spectra in a range of different volumes both below and above the inelastic threshold. The applicability of the analysis methods in the elastic region is compared. Problems which arise in the inelastic region are also emphasised.
description: 17 pages, 20 figures; clarification and minor corrections added, to appear in PRD
Sexual Identity Fluidity and Depressive Symptoms: Findings From a National Longitudinal Study of Sexual Minority Adolescents
Creators: name: Krueger, Evan A
name: Hall, William J
name: Goldbach, Jeremy T
name: Srivastava, Ankur
Publisher: name: Elsevier
Year: 2023

description:
PURPOSE: Sexual minority adolescents (SMAs) consistently report elevated risk of mental health symptoms, including depression. Sexual identities may change over time (referred as sexual identity fluidity), particularly during adolescence. This study examined the effect of sexual identity fluidity on depressive symptoms over time. METHODS: National longitudinal data were analyzed from SMAs aged 14-17 years (N = 1,077) in the adolescent stress experiences over time study during an 18-month period. Multigroup time-varying covariate latent growth models were employed to examine the effect of sexual identity fluidity on depressive symptoms. RESULTS: In the sample, 40% of SMAs reported at least 1 change in sexual identity during an 18-month period. Cisgender females reported sexual identity fluidity at a higher rate than their male counterparts (46.9% vs. 26.6%, respectively). In our first model (total sample), a change in sexual identity was associated with reporting fewer depressive symptoms (b = -0.591, p = .004). In our multigroup model (by sex assigned at birth), a change in sexual identity was significantly associated with reporting fewer depressive symptoms among cisgender females (b = -0.591, p < .01). However, there was no significant effect found among cisgender males. The models controlled for age and race or ethnicity. DISCUSSION: The results add to the limited knowledge on the complex relationship between sexual identity fluidity and mental health risks over time among adolescents. Our results indicate that sexual identity development and change processes differ between cisgender females and males. The nuances associated with these sexual identity processes need further investigation.
Negotiating trust in the Canadian blood system : governance and the politics of public accountability in the wake of the tainted blood scandal
Creators: name: Fiddler, Jay
Publisher: name: University of British Columbia
Year: 2011

description: Blood and its derivatives are critical public health resources. Therefore, the ability to ensure a sufficient and safe supply of blood is a central role for governments and blood organizations. The challenges involved in ensuring this complex resource became evident following the contamination of blood supplies in the 1980s and 1990s with the Human Immunodeficiency Virus (HIV) and Hepatitis C (HCV). In Canada, this became known as the “tainted blood scandal”, with approximately 2000 people infected with HIV and more than 160,000 people infected with HCV through contaminated blood products. This crisis resulted in the loss of public trust in the Canadian blood system and in those responsible for its management. The public outcry led blood experts and governments to adopt more efficient ways of anticipating and managing emergent threats to blood safety by implementing the precautionary principle. These efforts also aimed to retain their legitimacy and rebuild public trust by integrating formal mechanisms of stakeholder engagement in risk governance. By using stakeholder engagement as a case study, this study focuses on the institutional processes of rebuilding trust in the Canadian blood system following the tainted blood scandal. The analysis describes competing ideas about trust, risk and responsibility in the blood system and traces the influence of stakeholders groups such as the hemophilia community and other blood consumer organizations. The findings suggest that stakeholder engagement primarily serves the interests of the blood operator by enhancing its reputation as a responsible manager of the blood system. It also diverts attention away from the role of the state in managing blood risk through expert systems and a policy of strict adherence to the precautionary principle. The analysis also demonstrates that stakeholder engagement can also serve as an alternative form of power and influence for hemophilia consumers. As victims of tainted blood, these consumers are able to play a unique role in endorsing blood safety and thus helping to rebuild reputation and public trust. However, because of this role they may also become an organizational risk if their interests are not reflected in blood policy.
Interactive sensor planning
Creators: name: Stamos, Ioannis
name: Allen, Peter K.
Publisher: name: Columbia University
Year: 1998
Subjects: Computer science
City planning

description: This paper describes an interactive sensor planning system, that can be used to select viewpoints subject to camera visibility, field of view and task constraints. Application areas for this method include surveillance planning, safety monitoring, architectural site design planning, and automated site modeling. Given a description, of the sensor's characteristics, the objects in the 3-D scene, and the targets to be viewed, our algorithms compute the set of admissible view points that satisfy the constraints. The system first builds topologically correct solid models of the scene from a variety of data sources. Viewing targets are then selected, and visibility volumes and field of view cones are computed and intersected to create viewing volumes where cameras can be placed. The user can interactively manipulate the scene and select multiple target features to be viewed by a camera. The user can also select candidate viewpoints within this volume to synthesize views and verify the correctness of the planning system. We present experimental results for the planning system on an actual complex city model.
Floating and sinking: the imprint of massive scalars around rotating black holes
Creators: name: Cardoso, Vitor
name: Chakrabarti, Sayan
name: Pani, Paolo
name: Berti, Emanuele
name: Gualtieri, Leonardo
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the coupling of massive scalar fields to matter in orbit around rotating black holes. It is generally expected that orbiting bodies will lose energy in gravitational waves, slowly inspiralling into the black hole. Instead, we show that the coupling of the field to matter leads to a surprising effect: because of superradiance, matter can hover into "floating orbits" for which the net gravitational energy loss at infinity is entirely provided by the black hole's rotational energy. Orbiting bodies remain floating until they extract sufficient angular momentum from the black hole, or until perturbations or nonlinear effects disrupt the orbit. For slowly rotating and nonrotating black holes floating orbits are unlikely to exist, but resonances at orbital frequencies corresponding to quasibound states of the scalar field can speed up the inspiral, so that the orbiting body "sinks". These effects could be a smoking gun of deviations from general relativity.
description: 5 pages, two figures, RevTeX4.1. v2: Published in Physical Review Letters
Ethical, Cultural, and Historical Leadership Implications of Conducting Public Health Research on Minority Populations
Creators: name: Lewis, Eugene J.
name: Vestal, Kyleigh Elizabeth
name: Burrell, Darrell Norman
name: Ingle, Aleha M.
name: Huff, Allison J.
name: Richardson, Kevin
Publisher: name: IGI Global
Year: 2023

description:
The study focuses on ethical and cultural research into the public health sector. The content analysis of research identifies disproportionate knowledge of implications affecting the misappropriated, disenfranchised, and institutionalized minority segments of the general population affected by COVID-19 cases. Historic mistreatment of minority individuals, inmates, and the military has left a lasting negative impression of clinical research on minority groups. In 1932, the United States Public Health Service (USPHS) began a public health research study on the lethality of syphilis using African American men from Macon County, Alabama as research subjects. Referred to as the Tuskegee Syphilis Studies (or Tuskegee Experiments), researchers monitored 600 subjects, 399 of which were previously infected with the syphilis bacteria. This article looks at the historical contexts of the lack of bioethics during Tuskegee Experiments and how it currently influences African-Americans reluctance early on to get the COVID-19 vaccines and reluctance to participate in clinical trials research.
title: The accuracy and safety of CT guided needle biopsy in the diagnostic work-up of mediastinal tumors.
Creators: name: Jelitto-Gorska, Malgorzata
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Interventional Radiology
subject: Lung
subject: Mediastinum
subject: Thorax
subject: CT
subject: Fluoroscopy
subject: Biopsy
subject: Cancer
subject: Metastases
subject: Retrospective
subject: Observational
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The CT guided needle biopsy is a useful tool in diagnostic work-up of pulmonary nodules but also can be used in the evaluation of mediastinal tumors [1]. The aim of the study is to prove safety and estimate utility of CT-guided needle biopsy in...
CamouflageFS: Increasing the Effective Key Length in Cryptographic Filesystems on the Cheap
Creators: name: Locasto, Michael E.
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: One of the few quantitative metrics used to evaluate the security of a cryptographic file system is the key length of the encryption algorithm; larger key lengths correspond to higher resistance to brute force and other types of attacks. Since accepted cryptographic design principles dictate that larger key lengths also impose higher processing costs, increasing the security of a cryptographic file system also increases the overhead of the underlying cipher. We present a general approach to effectively extend the key length without imposing the concomitant processing overhead. Our scheme is to spread the ciphertext inside an artificially large file that is seemingly filled with random bits according to a key-driven spreading sequence. Our prototype implementation, CamouflageFS, offers improved performance relative to a cipher with a larger key-schedule, while providing the same security properties. We discuss our implementation (based on the Linux Ext2 file system) and present some preliminary performance results. While CamouflageFS is implemented as a stand-alone file system, its primary mechanisms can easily be integrated into existing cryptographic file systems.
title: CT guided interventions in a mobile interventional suite
Creators: name: May, Matthias
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Interventional Radiology
subject: Interventional non-vascular
subject: Radioprotection / Radiation dose
subject: CT
subject: Percutaneous
subject: Biopsy
subject: Comparative studies
subject: Instrumentation
subject: Dosimetric comparison
subject: Patterns of Care
subject: Retrospective
subject: Case-control study
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Most recent CT scanner generation allows for mobile operation of the system in the examination room 1 . Aim of this study was to evaluate the performance of a mobile interventional suite in combination with an in-room radiation protection cabin and...
Wormhole geometries in modified gravity
Creators: name: Lobo, Francisco S. N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A fundamental ingredient in wormhole physics is the presence of exotic matter, which involves the violation of the null energy condition. Although a plethora of wormhole solutions have been explored in the literature, it is useful to find geometries that minimize the usage of exotic matter. In the context of modified gravity, it has also been shown that the normal matter can be imposed to satisfy the null energy condition, and it is the higher order curvature terms, interpreted as a gravitational fluid, that sustain these non-standard wormhole geometries, fundamentally different from their counterparts in general relativity. In this paper, we review recent work in wormhole physics in the context of modified theories of gravity.
description: 4 pages, Prepared for the proceedings of the Spanish Relativity meeting (ERE2011), Madrid, Spain, 29Aug-2Sep 2011
title: Are orthopaedic surgeons as good as radiologists at detecting glenoid labral lesions? A comparative study
Creators: name: RAJAN, SRIRAM
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Education and training
subject: Education
subject: MR
subject: Musculoskeletal joint
subject: Musculoskeletal

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: In the current era of information age, medical education and training has undergone a rapid shift in the style and structure. Radiology training, due to itsnature of complete digitization of information is in the forefront of this shift. This change...
Covid-19 Door Sign
Creators: name: Thomas Clayton Demers, Clayton, Clay-Doh D!!, Clay, Queen
Publisher: name: Zenodo
Year: 2025

description: Title : Covid-19 Door Sign

Size : 8.5" x 11"

File Type : PDF 

Uses : Classroom Door, Inside Entry Doors, Entry Doors, Office Doors, Bathrooms, Offices, Schools, Public places, etc.

Type : Printed, Laminated or Digital

Description : Colorful poster that resembles a cork board board with stickie notes and other papers and cards posted on it. 

License : See Below
More cryptic diversity among spiny lizards of the Sceloporus torquatus complex discovered through a multilocus approach
Creators: name: Journals1, Brill
Publisher: name: Brill Online
Year: 2023
Subjects: classificationCode: 310399
subject: Ecology not elsewhere classified

description: A phylogenetic reassessment of the Sceloporus torquatus species complex is presented using a multilocus approach. Topological conflicts related to a clade belonging to disjunct southern populations of S. madrensis are resolved, confirming the identity of such populations as distinct from the nominal populations of S. madrensis located 175 kilometres to the north. We describe this southern clade as a new species distributed in the Sierra Madre Oriental based on its phylogenetic distinctiveness and a combination of morphological characters and measurements, increasing the number of recognised species in the S. torquatus complex to seven.
Recursive Sandboxes: Extending Systrace To Empower Applications
Creators: name: Kurchuk, Aleksey
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: The systrace system-call interposition mechanism has become a popular method for containing untrusted code through program-specific policies enforced by user-level daemons. We describe our extensions to systrace that allow sandboxed processes to further limit their children processes by issuing dynamically constructed policies. We discuss our extensions to the systrace daemon and the OpenBSD kernel, as well as a simple API for constructing simple policies. We present two separate implementations of our scheme, and compare their performance with the base systrace system. We show how our extensions can be used by processes such as ftpd, sendmail, and sshd.
Computing camera viewpoints in a robot work-cell
Creators: name: Abrams, Steven
name: Allen, Peter K.
name: Tarabanis, Konstantinos A.
Publisher: name: Columbia University
Year: 1996
Subjects: Robotics

description: Automatically planning a camera viewpoint for tasks such as inspection in an active robot work-cell is a difficult problem. This paper discusses new methods for computing viewpoints which meet the feature detectability constraints of focus, field-of-view, visibility, and resolution. A theoretical outline of the method is presented, followed by experimental results and a discussion of future work.
title: Peri-Orbital and Orbital Cellulitis in emergency department. A review of 78 cases.
Creators: name: SALGADO BARRIGA, ROBERTO
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Observational
subject: Retrospective
subject: Outcomes
subject: Contrast agent-intravenous
subject: MR
subject: CT
subject: Neuroradiology brain
subject: Eyes
subject: Emergency
subject: Paediatric
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: -To review cases of pre-septal and post-septal cellulitis in the emergency department of a third pediatric hospital between April 2013 and September 2019. -To analyze the results obtained in a group of pediatric patients with clinical suspicion of...