cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Numerical Study of Turbulent Flame Speeds of Curvature and Strain G-equations in Cellular Flows
Creators: name: Liu, Yu-Yu
name: Xin, Jack
name: Yu, Yifeng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study front speeds of curvature and strain G-equations arising in turbulent combustion. These G-equations are Hamilton-Jacobi type level set partial differential equations (PDEs) with non-coercive Hamiltonians and degenerate nonlinear second order diffusion. The Hamiltonian of strain G-equation is also non-convex. Numerical computation is performed based on monotone discretization and weighted essentially nonoscillatory (WENO) approximation of transformed G-equations on a fixed periodic domain. The advection field in the computation is a two dimensional Hamiltonian flow consisting of a periodic array of counter-rotating vortices, or cellular flows. Depending on whether the evolution is predominantly in the hyperbolic or parabolic regimes, suitable explicit and semi-implicit time stepping methods are chosen. The turbulent flame speeds are computed as the linear growth rates of large time solutions. A new nonlinear parabolic PDE is proposed for the reinitialization of level set functions to prevent piling up of multiple bundles of level sets on the periodic domain. We found that the turbulent flame speed $s_T$ of the curvature G-equation is enhanced as the intensity $A$ of cellular flows increases, at a rate between those of the inviscid and viscous G-equations. The $s_T$ of the strain G-equation increases in small $A$, decreases in larger $A$, then drops down to zero at a large enough but finite value $A_{*}$. The flame front ceases to propagate at this critical intensity $A_*$, and is quenched by the cellular flow.
Financial Markets, Public Policy, and the East Asian Miracle
Creators: name: Stiglitz, Joseph E.
name: Uy, Marilou
Publisher: name: Columbia University
Year: 1996
Subjects: Economics

description: Many factors contributed to the rapid growth of the economies of East Asia in the past quarter century. This article examines one important aspect of that growth--commonly referred to as the "East Asian miracle"--public policies affecting the financial markets. East Asian governments intervened extensively in financial markets at all stages of their development. What sets their actions apart from those of other developing countries that have not fared as well? We do not have the information to answer conclusively what effect particular actions had (that requires a counterfactual test of what growth would have been without the particular intervention). But we can identify the market failures the East Asian governments addressed, assess some of the theoretical reasons why each policy might be growth enhancing, and provide some data attesting to the impacts of the policy. Several characteristics of financial sector interventions in East Asia stand out: they incorporated design features that improved the chances of success and reduced opportunities for abuse; interventions that did not work out were dropped unhesitatingly; and policies were adapted to reflect changing economic conditions.
Non-Minimal Chaotic Inflation, Peccei-Quinn Phase Transition and non-Thermal Leptogenesis
Creators: name: Pallis, C.
name: Shafi, Q.
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: We consider a phenomenological extension of the minimal supersymmetric standard model (MSSM) which incorporates non-minimal chaotic inflation, driven by a quadratic potential in conjunction with a linear term in the frame function. Inflation is followed by a Peccei-Quinn phase transition, based on renormalizable superpotential terms, which resolves the strong CP and mu problems of MSSM and provide masses lower than about 10^12 GeV for the right-handed (RH) (s)neutrinos. Baryogenesis occurs via non-thermal leptogenesis, realized by the out-of-equilibrium decay of the RH sneutrinos which are produced by the inflaton's decay. Confronting our scenario with the current observational data on the inflationary observables, the light neutrino masses, the baryon asymmetry of the universe and the gravitino limit on the reheat temperature, we constrain the strength of the gravitational coupling to rather large values (~45-2950) and the Dirac neutrino masses to values between about 1 and 10 GeV.
description: Final version
Gordon Matta-Clark's photographic spaces
Creators: name: Zacharias, Erica Ashley
Publisher: name: University of British Columbia
Year: 2011

description: Gordon Matta-Clark (1943-1978) is best known for his experimental “building cuts,” in which he reconfigured whole architectural spaces slated for destruction in North and South America, and in Europe. An extensive scholarship theorizes Matta-Clark’s practice as a critique of his architectural education and a recuperation of the social spaces outside its purview. Today, audiences view Matta-Clark’s building cuts through the two-dimensional media of film and photography, further complicating the original works’ play with temporality and performance. Recent scholarship has seen photography as central to Matta-Clark’s performance-based and sculptural practice. This thesis addresses a gap in scholarship between Matta-Clark’s photography and his ephemeral works. Matta-Clark’s use of photography as document relates to the Land Art practice of exhibiting outdoor works inside the gallery. His photographs also engage in the photoconceptual practice of questioning that very documentary status. I trace three modalities for the photographic within Matta-Clark’s works: image (referent), object (medium), and apparatus (technology). I suggest that the photographic image is historically situated by the latter two categories as an ontologically specific space, at once material and abstract, technological and theoretical. My research draws on theoretical discourses underpinning Modernist architecture. The role of photography is belied in Modernist architectural discourse, a mainstay of Cornell’s architecture program under the leadership of historian Colin Rowe, from which Matta-Clark received a BArch in 1968. I find an unstated connection between photography and phenomenal transparency, a term defined in Rowe and Robert Slutzky’s influential essay, “Transparency: Literal and Phenomenal,” where it is used to describe the abstraction of space in the work of Le Corbusier. I set up a theoretical framework for the conceptual role of photography in Matta-Clark’s practice by being attentive to the relationship between photography and architecture through the photographic slice, the visualized analog to the sculptural cut. I argue that in order to criticize the supposed transparency of both photography and architecture apparent in contemporary art practices and Modernist architectural discourse respectively, Matta-Clark’s work investigated the two media in tandem.
title: Typical and atypical liver hemangiomas
Creators: name: Sequeira, Nadine
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Retrospective
subject: Haemangioma
subject: Normal variants
subject: CT
subject: Liver
subject: CT
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To identify atypical hepatic hemangiomas in CT scans. Learn to discern from other pathologies with similar radiological...
Information and Economic Efficiency
Creators: name: Stiglitz, Joseph E.
name: Greenwald, Bruce C.
name: Arnott, Richard J.
Publisher: name: Columbia University
Year: 1994
Subjects: Economics

description: Is an economy with adverse selection, moral hazard, or an incomplete set of risk markets "constrained" Pareto efficient? There are two sets of papers addressing this question, one asserting that, under seemingly quite general conditions, the economy is constrained Pareto efficient, the other (to which we have contributed), that it is not. In this paper, we delineate the differences in assumptions between the two sets of papers, and under our assumptions present an intuitive proof of the Pareto inefficiency of market equilibrium with moral hazard and identify what it is that the government can do that the market cannot.
International Perspectives in Undergraduate Education
Creators: name: Stiglitz, Joseph E.
Publisher: name: Columbia University
Year: 1993
Subjects: Economics

description: There is an old joke about economics which says that the questions stay the same, only the answers change. Though there is some truth in that idea, I would argue that over the past 50 years, there have been marked changes both in the questions and in the answers, but that many of these changes are still only imperfectly reflected in undergraduate textbooks.
New and Old Keynesians
Creators: name: Stiglitz, Joseph E.
name: Greenwald, Bruce C.
Publisher: name: Columbia University
Year: 1993
Subjects: Economics

description: Despite the fundamental differences in views between these different schools, they have agreed upon two methodological premises: that macroeconomics should be grounded in microeconomic principles, and that understanding macroeconomic behavior requires the construction of a (simple) general equilibrium model. The real difference arises here: real business cycles and (to a lesser extent) new classical economists base their theories on simple (we would say simplistic) models of markets that employ perfect information, perfect competition, the absence of transactions costs, and the presence of a complete set of markets. They also often employ a representative agent model. These assumptions often interact: the absence of risk markets is of no import in a world in which all individuals are identical--since there is no one to whom a representative agent can transfer risk. Problems of asymmetric information cannot arise if all individuals are identical. Moreover, the strong assumptions allow market results to be Pareto efficient, despite the fact that economies with imperfect information and incomplete markets are generally not constrained Pareto efficient (Greenwald and Stiglitz, 1986, 1988a). In contrast, modern Keynesians have identified these real world "imperfections" as the source of the problem: leaving them out of the model is like leaving Hamlet out of the play.
Ice pressure distribution on conical structures during ice-structure interaction
Creators: name: Tripathi, Dhruba
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 277-291
description: Most pages are in colour.
description: An attempt has been made to understand the complex phenomenon of ice pressure distribution at the ice-structure interface when ice interacts with a conical structure. Full-scale, high frequency data obtained from an in-situ monitoring program of the Confederation Bridge is used for the calculation of ice action on the conical structure. The ice pressure distribution analysis involved identification of events, identification of sector activations, identification of pressure peaks, and their distribution on different sectors of Ice Force Panels. Ice pressure and its correlation between different sectors of pressure panel are also determined. Some stalled event are analysed to study the effectiveness of pressure panel to record sustained pressure. Because of higher percentage of bad sectors in columns than in rows, the vertical (along the slope) distribution of ice pressure is comparatively better defined than the horizontal (along the circumference) distribution of ice pressure. The peak pressures are found to be concentrated on the panels at the water-line and the pressure goes on reducing along the slope above and below the water-line. Adjacent panel sectors and sectors along a particular row are found to have better correlation with each other. This distribution of pressure on conical pier is an important output obtained from the data that was initially not given the priority that it deserved. Key words: Ice, conical structure, sloping structure, flexural failure, full scale, ice­structure interaction, ice pressure, ice pressure distribution, Confederation Bridge.
title: Renal tumoral pathology. A pictorial guide. Make it easy!
Creators: name: Mast Vilaseca, Richard
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Not applicable
subject: Neoplasia
subject: Diagnostic procedure
subject: Ultrasound
subject: MR
subject: CT
subject: Oncology
subject: Kidney
subject: Genitourinary

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The aim of this presentation is to serve as an illustrative guide that eases the identification of renal solid tumors based on the imaging...
Additional file 1 of Impact of thermodynamical rotational flow of cerebrospinal fluid in the presence of elasticity
Creators: name: Balasundaram, Hemalatha
Publisher: name: figshare
Year: 2023
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1: Appendix. Obtained from solving the governing equations Eqns. (6)-(9) from manuscript. Table S1. Properties involved in CSF flow used to validate various parameters.
title: Imaging of head and neck infections
Creators: name: Elkhadir, Kaoutar
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Infection
subject: Acute
subject: Abscess
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Head and neck
subject: Ear / Nose / Throat
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The main purpose of our poster is: To understand the vital role of imaging primarly Computed Tomography (CT) in management of head and neck infections To describes and pictorially illustrates the pertinent anatomy and imaging manifestations of...
'Just deal': navigating life and loss in pediatric multiple sclerosis
Creators: name: Thannhauser, Jennifer
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 139-168
description: Includes copy of ethics approval. Original copy with Partial Copyright Licence.
description: Multiple sclerosis (MS) is an acquired, chronic disease of the central nervous system, which can cause unpredictable disability, known to typically affect adults. Over the past 10 -15 years, practitioners and researchers have come to recognize that children and adolescents are also at risk for this disease. This growing awareness has resulted in an exponential growth in the knowledge about pediatric MS. Unfortunately, there continues to be a significant dearth of research addressing the psychosocial sequelae of MS for adolescents. Young individuals diagnosed with MS must not only adjust to the neurologically-based symptoms and treatment regimes that impact their daily lives, they must also face the unique challenges of integrating these symptoms and treatments into their normative developmental process. This study was designed to explicate the process of adjustment to a diagnosis of pediatric MS. Youth participants ranged in age from 16 to 21 and all were diagnosed with MS by the end of their 18th year. Six matched parent-adolescent/young adult pairs, plus one young adult, were recruited from rural and urban settings across western Canada and participated in separate individual interviews and online biogs. Using Charmaz' constructivist grounded theory methodology, 1 developed a preliminary theory that captures the experience of grief in the adjustment process of youth with MS. The core of the theoretical model focuses on two separate, yet overlapping, processes: recurring loss and carrying on. Significant turning points influenced the oscillation between these two processes, highlighting the interconnection of intra personal and interpersonal dynamics in the adjustment process. Results reinforce and extend current grief literature, while also providing a new perspective on adjustment to pediatric chronic illness. Specific implications for counselling youth with MS, in addition to ecological considerations, are presented.
title: Aortic Stenosis in the era of CMR... New insights in an old disease!
Creators: name: Lama, Niki
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Dilatation
subject: Comparative studies
subject: MR
subject: Cardiovascular system
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Degenerative aortic valve stenosis (AS) is the commonest primary valvular heart disease, in the modern world, related with aging population.The diagnosis of AS is primarily based on echocardiography. Severity of aortic valve stenosis is elicited by...
Binary switching in a symmetric potential landscape
Creators: name: Roy, Kuntal
name: Bandyopadhyay, Supriyo
name: Atulasimha, Jayasimha
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The general methodology of binary switching requires tilting of potential landscape along the desired direction of switching. The tilt generates a torque along the direction of switching and the degree of tilt should be sufficient enough to beat thermal agitations with a tolerable error probability. However, we show here that such tilt is not necessary. Considering the full three-dimensional motion, we point out that the built-in dynamics can facilitate switching without requiring any asymmetry in potential landscape even in the presence of thermal noise. With experimentally feasible parameters, we theoretically demonstrate such intriguing possibility in electric field-induced magnetization switching of a magnetostrictive nanomagnet.
title: High-resolution Computed Tomography Patterns of Diffuse Pulmonary Lymphatic Disease Presenting as Interstitial Lung Disease
Creators: name: Bilek, Enis
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Education and training
subject: Imaging sequences
subject: Diagnostic procedure
subject: CT
subject: Thorax
subject: Respiratory system
subject: Lung
subject: Chest

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: This presentation describes the diseases of the thoracic lymphatic system such as lymphangioleiomyomatosis, diffuse pulmonary lymphangiomatosis, lymphangioma, diseases with a lymphatic distribution (Kaposi sarcoma, lymphoma, sarcoidosis,...
Additional file 1 of Development of a decision aid to support colorectal cancer screening: perspectives of Asians in an endemic urban community—a qualitative research study
Creators: name: Yuen, Sok Wei Julia
name: Tay, Tsang Yew
name: Gao, Ning
name: Tho, Nian Qin
name: Tan, Ngiap Chuan
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1: Appendix 1. Topic guide used for in depth interviews and focus group discussions.
title: Pediatric neurocutaneous syndromes: Review of brain MRI findings.
Creators: name: Rojas-Rojas, María
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Neuro
subject: Neuroradiology brain
subject: MR
subject: MR-Spectroscopy
subject: Education
subject: Congenital
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 assess the clinical features and diagnostic criteria of common phakomatoses. - To review and illustrate the brain magnetic resonance imaging (MRI) findings of common phakomatoses including neurofibromatosis type I and II, tuberous sclerosis,...
title: Contribution of computed tomography in orbital cellulitis
Creators: name: Kerkeni, Chamseddine
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Infection
subject: Abscess
subject: Diagnostic procedure
subject: CT
subject: Soft tissues / Skin
subject: Eyes
subject: Emergency
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: -Identify the main causes of orbital cellulitis -Describe the Chandler classification -Describe the CT findings of orbital cellulitis -Identify possible...
Magnetic Interactions in Coalescing Neutron Star Binaries
Creators: name: Piro, Anthony L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is expected on both evolutionary and empirical grounds that many merging neutron star (NS) binaries are composed of a highly magnetized NS in orbit with a relatively low magnetic field NS. I study the magnetic interactions of these binaries using the framework of a unipolar inductor model. The e.m.f. generated across the non-magnetic NS as it moves through the magnetosphere sets up a circuit connecting the two stars. The exact features of this circuit depend on the uncertain resistance in the space between the stars R_space. Nevertheless, I show that there are interesting observational and/or dynamical effects irrespective of its exact value. When R_space is large, electric dissipation as great as ~10^{46} erg/s (for magnetar-strength fields) occurs in the magnetosphere, which would exhibit itself as a hard X-ray precursor in the seconds leading up to merger. With less certainty, there may also be an associated radio transient, but this would be observed well past merger (~hrs) because of interstellar dispersion. When R_space is small, electric dissipation largely occurs in the surface layers of the magnetic NS. This can reach ~10^{49} erg/s during the final ~1 sec before merger, similar to the energetics and timescales of short gamma-ray bursts. In addition, for dipole fields greater than ~10^{12} G and a small R_space, magnetic torques spin up the magnetized NS. This drains angular momentum from the binary and accelerates the inspiral. A faster coalescence results in less orbits occurring before merger, which would impact matched-filtering gravitational-wave searches by ground-based laser interferometers and could create difficulties for studying alternative theories of gravity with compact inspirals.
description: 10 pages, 9 figures, submitted for publication in The Astrophysical Journal
Capital Markets and Economic Fluctuations in Capitalist Economies
Creators: name: Stiglitz, Joseph E.
Publisher: name: Columbia University
Year: 1992
Subjects: Economics

description: Marshall Lecture delivered to the European Economic Association Meetings, Cambridge, U.K., 1991. Financial support from the National Science Foundation and the Hoover Institution is gratefully acknowledged. This paper reports on joint work with Bruce Greenwald. I am also indebted to my other co-authors with whom I have been engaged in research on the issues discussed in this paper, in particular, to Andrew Weiss; and to K. Hoff, Marco Da Rin and Andrés Rodríguez for helpful comments on a previous draft.
Interacciones entre diatomeas y otros microorganismos extremófilos en biopelículas antárticas de la Isla Greenwich (Islas Shetland del Sur-Antárctica)
Creators: name: Guerra C., Maria de Lourdes
Publisher: name: Zenodo
Year: 2019
Subjects: Diatomeas, biopeículas, organismos extremófilos, Antárctica, Isla Greenwich

description: El clima antártico es excepcionalmente frío, seco, ventoso y pobre en precipitaciones donde predomina la nieve y esporádicamente lluvia.  La existencia de agua líquida es el principal factor que facilita la proliferación de organismos vivos.  La primavera y el verano austral reducen las condiciones extremas del ambiente y facilitan el desarrollo de comunidades planctónicas y bentónicas microbianas, que incluyen bacterias autótrofas y heterótrofas, protistas. Estas comunidades han desarrollado distintos mecanismos de adaptación, como son las biopelículas o tapetes microbianos, formados por substancias secretadas por los microorganismos. Durante el deshielo estival en el área de Punta Ambato (isla Greenwich) se formó una biopelícula.  Con la ayuda de un corer de 10 cm de diámetro, se colectó de manera aleatoria en 5 puntos diferentes del área; aproximadamente 3,5 cm de sustrato considerando que la altura de la biopelícula fue de 2,5 cm. Con la ayuda de un microscopio se analizó la comunidad presente en todo el perfil de cada tapete.  En las biopelículas predominaron las diatomeas, sin embargo también se encontraron cianobacterias del género Lyngbya, así como otros microorganismos tales como bacterias, tardígrados y nemátodos. Las biopelículas están ampliamente distribuidos por el planeta encontrándose frecuentemente en ambientes considerados extremos. En la Antártica estos tapetes presentan en general una mayor diversidad de cianobacterias, así como también mayor presencia y diversidad de diatomeas y algas verdes. Las diatomeas son las responsables de un 50% de la fotosíntesis de la tierra mientras que las bacterias remineralizan la porción del carbón fijado. La mayoría de las biopelículas están construidas y dominadas por organismos que normalmente utilizan la luz como fuente de energía, el agua como dador de electrones y el CO2 como fuente de carbono, convirtiéndose en principales productores primarios y la base de la cadena trófica de estos ecosistemas en micro-escala.
On the origin of power-laws in equilibrium
Creators: name: Campisi, Michele
name: Zhan, Fei
name: Hänggi, Peter
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A particle in the attractive Coulomb field has an interesting property: its specific heat is constant and negative. We show, both analytically and numerically, that when a classical Hamiltonian system stays in weak contact with one such negative specific heat object, its statistics conforms to a fat-tailed power-law distribution with power index given by $C/k_B-1$, where $k_B$ is Boltzmann constant and $C$ is the heat capacity.
description: 5 pages, 2 figures. v2 accepted in EPL
Development of an underbalanced drilling optimization simulator (udos)
Creators: name: Shirkavand, Farid
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 193-199
description: Drilling simulation technology has been widely applied m many drilling engineering areas to solve drilling problems, optimize drilling parameters, and to train engineers with real drilling operations as well as to handle rare applications and accidents. The rising application of Under-Balanced Drilling (UBD) especially in western Canada creates a demand for a UBD simulator tool which enables the drilling engineers to simulate the drilling operations in a pre-planning mode. UBD is a procedure used to drill oil and gas wells where the pressure in the well bore is kept lower than the pressure of the formation being drilled. This results in many advantages over conventional drilling such as higher rate of penetration (ROP), prevention of fluid losses and formation damage. The research presented in this thesis includes the development procedure a new UBD simulator. This simulator includes a procedure on how to process the drilling and reservoir data to be able to predict the reservoir influx and calculate the corresponding bottom hole pressure (BHP) and surface back pressure (BP) during the drilling of a well. The mathematical modeling in the simulator is based on a new comprehensive mechanistic steady state model. The results produced by the simulator are compared to available field drilling operational data. This new simulator is the first developed multi­purpose underbalanced drilling optimization simulator integrating the underbalanced drilling technique, field operational parameters and bit performance optimization. The pre-planned safe operational window is the most important output of the simulator. Also, a new correlation is developed which correlates the drilled underbalanced rock strength to the unconfined rock compressive strength (UCS). The UCS can further be used as an input into available drilling rate of penetration (ROP) optimization simulators. Using the rate of penetration models to back-calculate the UCS provides the user with the possibility of calculating the rock mechanical UCS value for any PDC bit with corresponding operating parameters and any underbalanced drilling mode. The preplanned safe pressure window any underbalanced drilling technique guarantees adequate hole cleaning. Finally, the results from the simulator are compared to and found to be in good agreement with available field data. Using the simulator can provide an inexpensive mean to assist with the design of safe and economical underbalanced drilling operations.
Regular charged black hole construction in 2+1 -dimensions
Creators: name: Mazharimousavi, S. Habib
name: Halilsoy, M.
name: Tahamtan, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is well-known that unlike its chargeless version the charged Banados-Teitelboim-Zanelli (BTZ) black hole solution in 2+1- dimensional spacetime is singular. We construct a charged, regular extension of the BTZ black hole solution by employing nonlinear Born-Infeld electrodynamics, supplemented with the Hoffmann term and gluing different spacetimes. The role of the latter term is to divide spacetime in a natural way into two regions by a circle and eliminate the inner singularity. Thermodynamics of such a black hole is investigated by Kaluza-Klein reduction to the 1+1-dimensional dilaton gravity.
description: 9 pages, 2 figures, final version for publication in Physics Letters A
Lost objects: the melancholic autofictions of Sylvia Plath and Anna Kavan
Creators: name: Sheppy, Nicole Denise
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 393-417
description: This thesis addresses literatures emerging from loss, taking as its theoretical basis psychoanalytic theories of trauma and melancholia. As such, it considers the work of Sigmund Freud, Nicholas Abraham and Maria Torok, Melanie Klein, Julia Kristeva, Elaine Scarry, Cathy Caruth and Dori Laub. It locates a general consensus about such characteristics as repetition, belatedness, encryption, fixation, idealization, reification and the drive to mourn via adequately transforming figurations. By exploring these ideas, I strive to theorize a contemporary melancholic geme as a literature of hybridity and literary experiment. In contrast to avant-garde movements typically dominated by men, writing associated with autobiography has been portrayed (and often denigrated) as suspect, conventional and feminine. This thesis strives to assert the innovative character of many autofictional works by considering how effectively such texts develop eccentric forms to participate in melancholic and traumatic literatures. After examining several twentieth- and twenty first-century examples from among the works of Bessie Head, Paul Celan, Georges Perec, Lauren Slater and Janice Williamson, it takes as its principal subjects American writer Sylvia Plath and British novelist Anna Kavan - two writers who pre-date more obvious postmodern experimentation. Plath and Kavan are engage many of the same issues emerging from melancholia, but in quite different ways. This thesis explores Plath's melancholic as an aphasic figure driven to silence and mental illness by losses occasioned by cultural ideologies and historical events. As such, it re-examines her Holocaust poetry from the vantage of melancholia, as well as her representations of gender, race and mental illness. It then considers Kavan's melancholic as an estranged figure whose losses typically emerge from positions of subjective difference that can never be transcended. These characters struggle with internal conflict and lack as well as internalized feelings of non-belonging. Among the literary innovations these two writers produce are eccentric authorial signatures (hence deliberate metatextuality ), cultural performativity, corrosive self-irony, unauthorized identifications, achronology, uncanny repetition, elaborate psychic allegory, and parodic anthropomorphism. A major task of this thesis is to recuperate the important political role of melancholic and traumatic literatures, which endlessly mourn losses that seek public redress.
title: Spontaneous coronary artery dissection (SCAD)- a non-atherosclerotic cause of acute coronary syndrome (ACS)
Creators: name: Koutsogianni, Anastasia
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Dissection
subject: Aneurysms
subject: Acute
subject: Contrast agent-intravenous
subject: Computer Applications-Detection, diagnosis
subject: Computer Applications-3D
subject: CT-Angiography
subject: CT
subject: Catheter arteriography
subject: Cardiovascular system
subject: Cardiac
subject: Arteries / Aorta
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To suspect intramural haematoma or dissection in a young, non-atherosclerotic patient with ACS. To illustrate the significance of non-invasive CT Coronary Angiography (CTCA) in the diagnosis of SCAD. To compare CTCA with invasive diagnostic...
CMB power spectrum parameter degeneracies in the era of precision cosmology
Creators: name: Howlett, Cullan
name: Lewis, Antony
name: Hall, Alex
name: Challinor, Anthony
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Cosmological parameter constraints from the CMB power spectra alone suffer several well-known degeneracies. These degeneracies can be broken by numerical artefacts and also a variety of physical effects that become quantitatively important with high-accuracy data e.g. from the Planck satellite. We study degeneracies in models with flat and non-flat spatial sections, non-trivial dark energy and massive neutrinos, and investigate the importance of various physical degeneracy-breaking effects. We test the CAMB power spectrum code for numerical accuracy, and demonstrate that the numerical calculations are accurate enough for degeneracies to be broken mainly by true physical effects (the integrated Sachs-Wolfe effect, CMB lensing and geometrical and other effects through recombination) rather than numerical artefacts. We quantify the impact of CMB lensing on the power spectra, which inevitably provides degeneracy-breaking information even without using information in the non-Gaussianity. Finally we check the numerical accuracy of sample-based parameter constraints using CAMB and CosmoMC. In an appendix we document recent changes to CAMB's numerical treatment of massive neutrino perturbations, which are tested along with other recent improvements by our degeneracy exploration results.
description: 27 pages, 28 figures. Latest CAMB version available from http://camb.info/. Reduced number of figures, plot legend corrected and minor edits to match published version
Additional file 1 of Common myths and misconceptions about breast cancer causation among Palestinian women: a national cross-sectional study
Creators: name: Elshami, Mohamedraed
name: Ismail, Islam Osama
name: Alser, Mohammed
name: Al-Slaibi, Ibrahim
name: Ghithan, Roba Jamal
name: Usrof, Faten Darwish
name: Qawasmi, Malak Ayman Mousa
name: Okshiya, Heba Mahmoud
name: Shurrab, Nouran Ramzi Shaban
name: Mahfouz, Ibtisam Ismail
name: Fannon, Aseel AbdulQader
name: Hawa, Mona Radi Mohammad
name: Giacaman, Narmeen
name: Ahmaro, Manar
name: Zaatreh, Rula Khader
name: AbuKhalil, Wafa Aqel
name: Melhim, Noor Khairi
name: Madbouh, Ruba Jamal
name: Hziema, Hala Jamal Abu
name: Lahlooh, Raghad Abed-Allateef
name: Ubaiat, Sara Nawaf
name: Jaffal, Nour Ali
name: Alawna, Reem Khaled
name: Abed, Salsabeel Naeem
name: Abuzahra, Bessan Nimer Ali
name: Kwaik, Aya Jawad Abu
name: Dodin, Mays Hafez
name: Taha, Raghad Othman
name: Alashqar, Dina Mohammed
name: Mobarak, Roaa Abd-al-Fattah
name: Smerat, Tasneem
name: Albarqi, Shurouq I.
name: Abu-El-Noor, Nasser
name: Bottcher, Bettina
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Cancer

description: Additional file 1: Supplementary Table 1. Summary of the data collection sites included in the study.
Effectiveness of a rapid toilet training workshop for parents of children with developmental disabilities
Creators: name: Rinald, Katherine
Publisher: name: University of British Columbia
Year: 2011

description: Individuals with developmental disabilities often experience challenges in learning toileting skills, which highlights a need for effective toilet training strategies that can be readily disseminated to caregivers. The purpose of this study was to evaluate the effects of parent attendance at a rapid toilet training-derived workshop on the toileting behaviours of their children with developmental disabilities. In the workshop, 6 parents were provided with instruction related to teaching urinary continence, which included increased fluid intake, positive reinforcement for correct toileting, scheduled toilet sittings, scheduled chair sittings to teach initiation, redirection for accidents, maintenance and generalization . Following the workshop, parents implemented the toilet training procedure they had learned at home with their children for approximately 5 days with telephone support from a researcher. A multiple baseline design was used to examine the effectiveness of the workshop. Results suggest that the toilet-training workshop resulted in increases in positive toileting behaviours in five of the six children. The results are discussed in relation to previous and future research and implications for practice.
'Did-do's': engaging a discourse of responses after childhood sexualized abuse
Creators: name: Ronald, Jennifer R.
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 130-141
description: Many pages are in colour.
description: Current discourses in the area of sexualized abuse convey understandings of women who experienced childhood sexualized abuse (CSA) as being damaged or disturbed. Presently, there is a focus on how individuals are affected by CSA, rather than on how they have responded to it. This research was a collaborative inquiry into response- and resource-based approaches taken by women in overcoming CSA. The objective was to develop shared understandings of the personal and therapeutic practices participants described as helpful in overcoming CSA. Eight adult females who have experienced CSA, participated in six group sessions. Data was analyzed using the mapping procedures of situational analysis. Key practices identified by participants as helpful were: taking action, honouring individual needs and journey, focusing on the positive, a response-based approach, and a group process. This study encourages research and counselling communities to explore how consequences from CSA can be addressed and overcome through resourceful responses.
Cerceris tyrannica SMITH 1856
Creators: name: Madl, Michael
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Crabronidae
Cerceris
Cerceris tyrannica

description: Cerceris tyrannica SMITH, 1856
Cerceris tyrannica SMITH, 1856: WALKER 1871a: 27 (Tadjoura).
Cerceris tyranica (!) SMITH, 1856: INNES BEY 1911: 112 (Tadjoura, cat. Lord Collection). * Cerceris tyranica (!) SMITH, 1856 var.: INNES BEY 1911: 112 (Tadjoura, cat. Lord Collection).
D i s t r i b u t i o n: Tadjoura.
Cerceris tyrannica is recorded from the Afrotropical (Djibouti, Eritrea, Gambia) and Palaearctic (Egypt: Gebel Elba) regions. The record from Djibouti is not mentioned in SCHLETTERER (1887: 504), DE DALLA TORRE (1897: 480) and BOHART & MENKE (1976: 588).
description: Published as part of Madl, Michael, 2018, A preliminary catalogue of the Hymenoptera (Insecta) of the Republic of Djibouti, pp. 907-967 in Linzer biologische Beiträge 50 (2) on pages 942-943, DOI: 10.5281/zenodo.3776452
Energy spectrum and effective mass using a non-local 3-body interaction
Creators: name: Gezerlis, Alexandros
name: Bertsch, G. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We recently proposed a nonlocal form for the 3-body induced interaction that is consistent with the Fock space representation of interaction operators but leads to a fractional power dependence on the density. Here we examine the implications of the nonlocality for the excitation spectrum. In the two-component weakly interacting Fermi gas, we find that it gives an effective mass that is comparable to the one in many-body perturbation theory. Applying the interaction to nuclear matter, it predicts a large enhancement to the effective mass. Since the saturation of nuclear matter is partly due to the induced 3-body interaction, fitted functionals should treat the effective mass as a free parameter, unless the two- and three-body contributions are determined from basic theory.
description: 7 pages, 1 figure; V2 has a table showing the 3-body energies for two phenomenological energy-density functionals
Another Century of Economic Science
Creators: name: Stiglitz, Joseph E.
Publisher: name: Columbia University
Year: 1991
Subjects: Economics

description: There is a widespread consensus that during the past century, economic science has come of age. It has developed powerful statistical tools to analyse economic data, to make forecasts, and to test alternative hypotheses, and it has employed sophisticated mathematical techniques to articulate its theories and to prove basic theorems characterising the economy. Samuelson (1947) encapsulated the mid-century enthusiasm for the scientific method in his classic Foundations of Economic Analysis, arguing that economics should be based on observable behaviour and testable hypotheses, and, with his theory of revealed preference, showing how this could be done with the theory of consumers' behaviour.
title: Bowel obstruction in adults: An overview of uncommon and rare cases
Creators: name: Bouchallouf, Yasser
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Volvulus
subject: Obstruction / Occlusion
subject: Hernia
subject: Education
subject: Computer Applications-Detection, diagnosis
subject: CT
subject: Gastrointestinal tract
subject: Emergency
subject: Abdomen
subject: GI Tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: - MDCT features of small and large bowel obstruction. - Illustrate some infrequent causes of bowel obstruction. - Categorize rare bowel obstruction causes into Small bowel and large bowel, extrinsic, intrinsic and...
title: Beyond gastroesophageal reflux: the value of the pediatric upper GI series
Creators: name: Aker, Loai
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Swallowing disorders
subject: Congenital
subject: Diagnostic procedure
subject: Contrast agent-oral
subject: Barium meal
subject: Fluoroscopy
subject: Paediatric
subject: Gastrointestinal tract
subject: Abdomen
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Objectives: To review the normal anatomy of the upper GI tract obtained on an Upper GI series. To identify the most commonly encountered pathologies in UGI series performed in children. To address the information that needs to be delivered, from the...
title: Demyelination with immunotherapy treatment for metastatic melanoma and renal cancer
Creators: name: Pillay-Achour, Michelle
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Not applicable
subject: Cancer
subject: Radiation therapy / Oncology
subject: Imaging sequences
subject: Contrast agent-intravenous
subject: MR
subject: Oncology
subject: CNS
subject: MRI

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To be aware of rarer side effects in patients with advanced metastatic melanoma and renal cancer undergoing...
Generating Scenarios of Local Surface Temperature Using Time Series Methods
Creators: name: Chen, Robert S.
name: Robinson, Peter J.
Publisher: name: Columbia University
Year: 1991
Subjects: Climatic changes

description: A method for creating scenarios of time series of monthly mean surface temperature at a specific site is developed. It is postulated that surface temperature can be specified as a linear combination of regional and local temperature components, where the regional component is an areal-average free tropospheric temperature such as may be produced by general circulation model climate simulations, and the local component is a response to purely local surface effects. Three models were tested for the North Carolina area, using weighted least squares linear regression techniques. The first related free tropospheric temperature directly to the site-specific local temperature, while the second added specifically local parameters as independent variables. For the four stations tested, this second model increased the explained variance from about 60% to near 70%. The third model incorporated a local energy and moisture balance process model to specify interactions between local variables, but yielded no significant increase in explanation. Scenarios of time series of future temperatures at a specific site can be obtained by using the statistical regression models and incorporating a random error term based on the regression residuals. For any postulated areas mean tropospheric temperature change this procedure yields a time series that retains the variability characteristics appropriate to the site-specific series.