cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mortuary practices at Cotocotuyoc, Peru
Creators: name: White, Julie-Anne
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 347-371
description: Drawing upon original excavation data as well as collaborative research and published anthropological sources, this thesis examines mortuary practices at the site of Cotocotuyoc over a period of time starting with the Middle Horizon (A.O. 550 -1000) and continuing into the Late Intermediate Period/Late Horizon (A.O. I 000 -1452). The site data are used to test existing models for the earlier Middle Horizon as well as present general trends for less well studied more recent periods in the Southern Highlands. The changes in mortuary practices over time at Cotocotuyoc are compared within the site as well as against other sites to contextualize the discussion. The dominant typological model for mortuary practices from the Central Highlands suggests that Wari socio-political hierarchies could be reflected in mortuary patterns of construction, human remains, and associated grave goods (Isbell, W. H. 2004; Milliken 2006; Tung 2003; Tung and Cook 2006). This inference is mainly based on data from the Central Highlands, but should also incorporate evidence from other Andean regions. Located in the Huaro Valley of the Southern Highlands region, excavations at Cotocotuyoc in 2005 and 2006 provide comparative material with respect to Middle Horizon mortuary feature construction, human osteological remains, and Wari-affiliated grave goods. After the disappearance of Wari influence in the Southern Highlands by the end of the Middle Horizon (around A.O. 1000), the site continues to be used for burials by the local population but shows significant changes in mortuary traditions in contrast with the earlier Middle Horizon patterns at Cotocotuyoc. The mortuary variation at Cotocotuyoc appears to tie into broader changing mortuary and socio-political patterns in the Central Andes during these periods.
Pareto Inefficiency of Market Economies: Search and Efficiency Wage Models
Creators: name: Stiglitz, Joseph E.
name: Greenwald, Bruce C.
Publisher: name: Columbia University
Year: 1988
Subjects: Economics

description: In the earlier work, it was shown that market equilibrium with competition, in contexts in which all markets clear, but in which there was imperfect information or incomplete markets would not, in general, be Pareto efficient. Here those results are expanded to incorporate equilibria in which firms are wage setters rather than wage takers, where they set their wage to take into account efficiency wage considerations and where they may set the wage at a level where markets do not clear. This provides a more accurate characterization of labor markets than is provided by the standard perfect information, market-clearing model. It should be clear that similar results obtain in other contexts-in labor, product, and capital markets-in which wages, prices, and interest rates affect market behavior, for instance by conveying information. Though efficiency may indeed entail unemployment, credit rationing, or prices exceeding marginal costs of production, there is no presumption that the extent of rationing, and the level of wages, prices, and interest rates in the market equilibrium are efficient.
Terahertz detection mechanism and contact capacitance of individual metallic single-walled carbon nanotubes
Creators: name: Chudow, Joel D.
name: Santavicca, Daniel F.
name: McKitterick, Chris B.
name: Prober, Daniel E.
name: Kim, Philip
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We characterize the terahertz detection mechanism in antenna-coupled metallic single-walled carbon nanotubes. At low temperature, 4.2 K, a peak in the low-frequency differential resistance is observed at zero bias current due to non-Ohmic contacts. This electrical contact nonlinearity gives rise to the measured terahertz response. By modeling each nanotube contact as a nonlinear resistor in parallel with a capacitor, we determine an upper bound for the value of the contact capacitance that is smaller than previous experimental estimates. The small magnitude of this contact capacitance has favorable implications for the use of carbon nanotubes in high-frequency device applications.
description: 13 pages, 3 figures, 1 table
Extragalactic line surveys
Creators: name: Ruiz, Sergio Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: 40 years have passed since the first molecular detection outside our Galaxy. Since then, our knowledge on the distribution, kinematics and composition of the molecular material in the extragalactic ISM has built up significantly based not only on the carbon monoxide observations but also in the more than 50 molecular species detected. In particular, line surveys have been proven to be excellent tools to study the chemical composition in the nuclei of galaxies. Such studies have been favored by the increasing instantaneous bandwidth of current mm and sub-mm facilities. Here I will summarize the highlights of extragalactic molecular spectroscopy, mostly focusing in the results from molecular line surveys published in the last few years as well as the aims of still ongoing projects.
description: 9 pages, 2 figures, in Proceedings of the 280th Symposium of the International Astronomical Union
title: Макроэкономика. Учебное пособие
Creators: name: ELS IPR BOOKS
Publisher: name: Южно-Уральский технологический университет
Year: 2024

description: Пособие включает в себя базовые макроэкономические категории и понятия, ориентирует обучающегося на осознание и интерпретацию происходящих экономических процессов и явлений на макроуровне; нацеливает на решение практических жизненных ситуаций, поиск и анализ экономической информации. Ориентирует студентов на закрепление экономического мышления и экономической оценки происходящего в современном мире. Выполнение практических заданий по представленным темам, ответ на тестовые вопросы, решение задач и практических ситуаций позволяет освоить и применить необходимые современному квалифицированному специалисту навыки экономической деятельности. Практикум предназначен для обучающихся, осваивающих образовательные программы бакалавриата и специалитета по экономическим направлениям.
Quantum crystals in a trapped Rydberg-dressed Bose-Einstein condensate
Creators: name: Hsueh, C. -H.
name: Lin, T. -C.
name: Horng, T. -L.
name: Wu, W. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Spontaneously crystalline ground states, called quantum crystals, of a trapped Rydberg-dressed Bose-Einstein condensate are numerically investigated. As a result described by a mean-field order parameter, such states simultaneously possess crystalline and superfluid properties. A hexagonal droplet lattice is observed in a quasi-two-dimensional system when dressing interaction is sufficiently strong. Onset of these states is characterized by a drastic drop of the non-classical rotational inertia proposed by Leggett [Phys. Rev. Lett. 25, 1543 (1970)]. In addition, an AB stacking bilayer lattice can also be attained. Due to an anisotropic interaction possibly induced by an external electric field, transition from a hexagonal to a nearly square droplet lattice is also observed.
description: 4 pages, 4 figures
An Equitable Phaseout of Fossil Fuel Extraction: Towards a Reference Framework for a Fair and Rapid GlobalPhaseout.
Creators: name: Civil Society Equity Review
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 440805
subject: Environmental politics

description: The second report in the Civil Society Review's work on equitable fossil fuel extraction phase out takes a next important step beyond the work put forward in the 2021 report towards specifying how a global phaseout of fossil fuel extraction can be completed in the most equitable way. It does so by reiterating some basic principles that were already put forth in the 2021 report on the topic and then builds on these by developing a framework that details how fast fossil-fuel-extracting countries need to complete their phaseouts depending on how dependent their economies and societies are on this fossil fuel extraction. It also takes into account how much financial capacity countries have to deal with the economic disruptions that might be associated with these rapid phaseouts, and specifies how much support wealthier countries need to provide to enable the very challenging phaseout timeframes that the rapidly depleting 1.5°C carbon budget placed upon everybody.
title: Advanced cardiovascular computed tomography (CT) imaging in children with congenital heart disease: from volume rendering (VR) to 3D models and 3D printing.
Creators: name: Zuccarino, Flavio
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Not applicable
subject: Congenital
subject: Computer Applications-3D
subject: Image manipulation / Reconstruction
subject: CT-Angiography
subject: CT
subject: Paediatric
subject: Cardiovascular system
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To discuss the principal indications for cardiovascular CT in newborns and children with congenital heart disease (CHD). To outline key imaging findings, advantages and limitations of CT in CHD, focusing on capability of VR and 3D models Fig. 1 to...
Taxation, Information, and Economic Organization
Creators: name: Stiglitz, Joseph E.
name: Wolfson, Mark A.
Publisher: name: Columbia University
Year: 1988
Subjects: Economics

description: The article comments on taxation. Taxes can only be imposed on the basis of information that is available to the government. There are fundamental asymmetries in the information that individuals have and that governments have. Individuals and firms can be selective in the information that they make available. The effect of a tax cannot be analyzed in isolation, only the effects of a tax system, the full set of taxes which are levied, can be assessed. Moreover, one has to look beneath the surface and at the full general equilibrium consequences of the tax system. The fact that the government imposes half of the social security tax on employers and half on employees does not mean that half of the tax is really borne by employers. The fact that interest on state and local bonds is tax exempt does not mean that it is those who buy these bonds who get most of the benefits of this provision. The consequences of the corporation income tax depend on whether or not capital gains receive special treatment. The methods by which taxes were avoided were variants and generalizations of some commonly employed tax avoidance devices.
The effectiveness of osteopathic manual treatment in the conservative management of infants with deformational plagiocephaly and congenital muscular torticollis
Creators: name: Trottier, Nathalie
Publisher: name: Kinesiology
Year: 2012

description: Bibliography: p. 102-112
description: Objective: To examine the differences in cranial asymmetry improvements in infants presenting with deformational plagiocephaly (DP), having received osteopathic manual treatment and physiotherapy (OMTPT) to the ones having received physiotherapy and sham. Methods: Pilot randomized controlled trial. Thirty infants with DP were recruited through consenting parents at the Alberta Children's Hospital and randomized into either the OMTPT group or into the sham group. They were assessed by a physiotherapist blinded to the treatment group and received six treatments provided by a physiotherapistosteopathic manual therapist every two weeks for 12 weeks. Main outcomes: Cranial vault asymmetry index (CV AI) and oblique diameter difference (ODD) were measured by the 3D STARscanner TM. Results: Mean estimates for differences between ODD and CV AI did not differ for the OMTPT group compared to the sham group. Conclusions: Cranial asymmetry of infants with DP improved for both groups with no evidence that the addition of OMT to PT lead to greater improvement.
Woodhaven Customs and Border Patrol : a performance between two solitudes
Creators: name: Haworth, Lara Claire
Publisher: name: University of British Columbia
Year: 2011

description: This dissertation is a reflection and analysis of my thesis performance: a site-specific, durational installation of a border patrol service at Woodhaven Nature Conservancy in Kelowna, British Columbia: Woodhaven Customs and Border Patrol. The paper addresses the potentiality of performance to investigate, and critique, the separation of wilderness spaces from civilization spaces in contemporary culture; our relationship to “nature” and “culture” as two distinct entities; our relationship with borders, both international and metaphorical; and the history and emergence of national, provincial and regional parks as parallel to the history and emergence of Canada as a nation state. The performance of Border Patrol as a memory project is also examined, with attention paid to notions of “biogeography” as a nationalist project that overrides personal memory with institutional memory, and the parallels and similarities between the logic, structure and organisation of nature parks and museums. Throughout, there is an emphasis on performance, collaboration, and participation, with a retelling of key moments, stories, and memories from the performance itself in support of the analysis. In conclusion, the paper asserts that troubling binaries through performance can reveal the extent to which they are constituted by each other, and that notions of interdependency, collusion and collision are vital to a healthy appraisal of the ways in which we are currently using, inhabiting and marking out social space.
title: Practical imaging approach to retroperitoneal sarcomas: a case-based review of diagnosis, staging and complications
Creators: name: Randazzo, Angelo
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Oncologic Imaging
subject: Abdomen
subject: Retroperitoneum
subject: CT
subject: Complications
subject: Staging
subject: Surgery
subject: Cancer
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe CT imaging features of retroperitoneal sarcomas, potential complications and patient...
CFHTLenS: Improving the quality of photometric redshifts with precision photometry
Creators: name: Hildebrandt, H.
name: Erben, T.
name: Kuijken, K.
name: van Waerbeke, L.
name: Heymans, C.
name: Coupon, J.
name: Benjamin, J.
name: Bonnett, C.
name: Fu, L.
name: Hoekstra, H.
name: Kitching, T. D.
name: Mellier, Y.
name: Miller, L.
name: Velander, M.
name: Hudson, M. J.
name: Rowe, B. T. P.
name: Schrabback, T.
name: Semboloni, E.
name: Benitez, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Here we present the results of various approaches to measure accurate colours and photometric redshifts (photo-z's) from wide-field imaging data. We use data from the Canada-France-Hawaii-Telescope Legacy Survey (CFHTLS) which have been re- processed by the CFHT Lensing Survey (CFHTLenS) team in order to carry out a number of weak gravitational lensing studies. An emphasis is put on the correction of systematic effects in the photo-z's arising from the different Point Spread Functions (PSF) in the five optical bands. Different ways of correcting these effects are discussed and the resulting photo-z accuracies are quantified by comparing the photo-z's to large spectroscopic redshift (spec-z) data sets. Careful homogenisation of the PSF between bands leads to increased overall accuracy of photo-z's. The gain is particularly pronounced at fainter magnitudes where galaxies are smaller and flux measurements are affected more by PSF-effects. We also study possible re- calibrations of the photometric zeropoints (ZPs) with the help of galaxies with known spec-z's. We find that if PSF-effects are properly taken into account, a re-calibration of the ZPs becomes much less important suggesting that previous such re-calibrations described in the literature could in fact be mostly corrections for PSF-effects rather than corrections for real inaccuracies in the ZPs. The implications of this finding for future surveys like KiDS, DES, LSST, or Euclid are mixed. On the one hand, ZP re-calibrations with spec-z's might not be as accurate as previously thought. On the other hand, careful PSF homogenisation might provide a way out and yield accurate, homogeneous photometry without the need for full spectroscopic coverage. This is the first paper in a series describing the technical aspects of CFHTLenS. (abridged)
description: 15 pages, 10 figures, accepted by MNRAS, minor revisions
title: Clinical applications of Dual-energy CT for the quantitative imaging in diffuse liver diseases
Creators: name: YAMAGUCHI, TAKERU
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Metabolic disorders
subject: Cirrhosis
subject: Contrast agent-intravenous
subject: CT
subject: Liver
subject: Abdominal Viscera

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To discuss the basic principles, current clinical applications and challenges of dual-energy CT as quantitative imaging biomarkers in diffuse liver...
3dSRCT
Creators: name: Buono, Gianmarco
name: al., et
Publisher: name: figshare
Year: 2023
Subjects: Other earth sciences not elsewhere classified

description: This repository is related to the following paper:
 Article Title: Exploring microstructure and petrophysical properties of microporous volcanic rocks through 3D multiscale and super-resolution imaging. Authors: Gianmarco Buono, Stefano Caliro, Giovanni Macedonio, Vincenzo Allocca, Federico Gamba & Lucia Pappalardo. Journal: Scientific Reports. DOI: https://doi.org/10.1038/s41598-023-33687-x. The codes are also available on GitHub (https://github.com/gmbuono/3dSRCT)
Corrosion of pipelines in the presence of alternating current interference
Creators: name: Su, Xin
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 89-95
description: With the increasing development of buried pipelines and the high-voltage power lines as well as the rail transit systems, pipelines encounter interference by alternating current (AC). It has been demonstrated that AC induced corrosion constitutes an essential threat to the pipeline integrity and safe operation. In this research, corrosion and AC corrosion of a 16Mn pipeline steel was studied in a simulated soil solution by weight loss testing, various electrochemical corrosion measurements, real-time AC/DC (direct current) signal analysis, and surface characterization. The results demonstrate that corrosion of the steel is within an acceptable level in the absence of AC interference. However, the corrosion rate of steel is enhanced remarkably by the applied AC current density from 0 to 400 A/m2. With the further increase to 600 A/m2 and 800 A/m2, the steel corrosion decreases. This is attributed to passivation of the steel at sufficiently high AC current densities. A high AC current density would generate high positive and negative AC potential components on the steel, resulting in the evolutions of hydrogen and oxygen, and enhancing the corrosion activity of the steel. Moreover, while AC could enhance corrosion of steel, only a very small percentage of AC current is involved in the steel dissolution. The vast majority of AC either participates in the charging-discharging process in the double-charge layer of steel electrode or gets involved in the red ox reaction of water. Furthermore, the presence of AC would decrease the cathodic protection (CP) effectiveness for protection of pipelines from corrosion. When CP is maintained at the potential of -0.85 V (saturated calomel electrode, SCE), the steel is not fully protected when i AC exceeds 100 A/m2. Only when the CP potential is sufficiently negative, such as at -1 V (SCE), the steel is under sufficient protection. The effect of AC on the CP performance depends on the potential applied on the steel. When the CP potential is not sufficiently negative, such as -0.85 V (SCE), AC would shift the corrosion potential of the steel negatively, increasing the corrosion reaction activity of the steel. When the CP potential is sufficiently negative, such as -1 V(SCE), the AC application would not be able to affect the steel corrosion at a detectable level.
Why Financial Structure Matters
Creators: name: Stiglitz, Joseph E.
Publisher: name: Columbia University
Year: 1988
Subjects: Economics

description: This article comments on the paper The Cost of Capital, Corporation Finance and the Theory of Investment, by Franco Modigliani and Merton Miller that was published in the June 1958 issue of the periodical American Economic Review. The fact that the optimal financial structure depends on tax rates, and that different investors face markedly different tax rates means, of course, that different firms should have different clientele. If those versions of the capital valuation model which assert the existence of a large number of similar firms were correct, then there would be some firms which pursued an all debt policy, others an all equity policy, and still others a historical policy of the kind described above; within any risk class firms in each category would have distinctly different owners. Though firms may differ somewhat in their clientele, they do not differ in the marked way predicted by the theory. Modigliani and Miller, in their brilliant papers, have set forth a research agenda which will occupy economists for decades to come. The direction which Modigliani and his co-authors suggest in their recent work, a systematic exploration of market irrationalities, seems among the most fruitful for enhancing our understanding of these hitherto unexplained quandaries.
Quantum Algebraic Approach to Refined Topological Vertex
Creators: name: Awata, H.
name: Feigin, B.
name: Shiraishi, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We establish the equivalence between the refined topological vertex of Iqbal-Kozcaz-Vafa and a certain representation theory of the quantum algebra of type W_{1+infty} introduced by Miki. Our construction involves trivalent intertwining operators Phi and Phi^* associated with triples of the bosonic Fock modules. Resembling the topological vertex, a triple of vectors in Z^2 is attached to each intertwining operator, which satisfy the Calabi-Yau and smoothness conditions. It is shown that certain matrix elements of Phi and Phi^* give the refined topological vertex C_{lambda mu nu}(t,q) of Iqbal-Kozcaz-Vafa. With another choice of basis, we recover the refined topological vertex C_{lambda mu}^nu(q,t) of Awata-Kanno. The gluing factors appears correctly when we consider any compositions of Phi and Phi^*. The spectral parameters attached to Fock spaces play the role of the K"ahler parameters.
description: 27 pages
ИММУНОЛОГИЧЕСКИЕ АСПЕКТЫ COVID-19: ЧТО МЫ ЗНАЕМ?
Creators: name: Нормуродов, Ж.Й.
name: Исламова, К.А.
name: Зиядуллаев, Ш.Х.
Publisher: name: Zenodo
Year: 2023

description: Недавно появившийся коронавирус (коронавирус тяжелого острого респираторного синдрома 2 SARS-CoV-2) и вызываемое им заболевание — коронавирусная болезнь 2019 года (COVID-19) изменили известный нам мир. Тем не менее, происхождение и эволюция SARS-CoV-2 остаются по большей части неясными. Многие факторы вирулентности и иммунные механизмы способствуют ухудшению воздействия на организм при заражении SARS-CoV-2.
title: Heterotopic Ossifications in patients with spine injury: an appropriate multidisciplinary diagnostic approach and the radiographer's role for the optimization of technical procedures.
Creators: name: BERTOLI, MARCO
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Observational
subject: Retrospective
subject: Education and training
subject: Connective tissue disorders
subject: Diagnostic procedure
subject: CT
subject: Conventional radiography
subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: Musculoskeletal joint
subject: Professional Issues

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Heterotopic Ossifications (HO) affect the skeletal system of patients suffering from acquired neurological damage . The objective is to propose, from the radiographer's point of view and EBM criteria, the different radiological methods in relation...
3dSRCT
Creators: name: Buono, Gianmarco
name: et, al.
Publisher: name: figshare
Year: 2023
Subjects: Other earth sciences not elsewhere classified

description: This repository is related to the following paper:
 Article Title: Exploring microstructure and petrophysical properties of microporous volcanic rocks through 3D multiscale and super-resolution imaging. Authors: Gianmarco Buono, Stefano Caliro, Giovanni Macedonio, Vincenzo Allocca, Federico Gamba & Lucia Pappalardo. Journal: Scientific Reports. DOI: https://doi.org/10.1038/s41598-023-33687-x. The codes are also available on GitHub (https://github.com/gmbuono/3dSRCT)
Effect of Intergalactic Medium on the Observability of Lyman Alpha Emitters during Cosmic Reionization
Creators: name: Jeeson-Daniel, Akila
name: Ciardi, Benedetta
name: Maio, Umberto
name: Pierleoni, Marco
name: Dijkstra, Mark
name: Maselli, Antonella
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We perform a systematic study of how the inhomogeneities in the Inter-Galactic Medium (IGM) affect the observability of Lyman Alpha Emitters (LAEs) around the Epoch of Reionization. We focus on the IGM close to the galaxies as the detailed ionization distribution and velocity fields of this region could significantly influence the scattering of Ly-alpha photons off neutral H atoms as they traverse the IGM after escaping from the galaxy. We simulate the surface brightness (SB) maps and spectra of more than 100 LAEs at z=7.7 as seen by an observer at z=0. To achieve this, we extract the source properties of galaxies and their surrounding IGM from cosmological simulations of box sizes 5-30 Mpc/h and follow the coupled radiative transfer of ionizing and Ly-alpha radiation through the IGM using CRASH-alpha. We find that the simulated SB profiles are extended and their detailed structure is affected by inhomogeneities in the IGM, especially at high neutral fractions. The detectability of LAEs and the fraction of the flux observed depend heavily on the shape of the SB profile and the SB threshold (SB_th) of the observational campaign. Only ultradeep observations (e.g. SB_th ~ 10^-23 ergs/s/cm^2/arcsec^2) would be able to obtain the true underlying mass-luminosity relation and luminosity functions of LAEs. The details of our results depend on whether Ly-alpha photons are significantly shifted in the galaxy to longer wavelengths, the mean ionization fraction in the IGM and the clustering of ionizing sources. These effects can lead to an easier escape of Ly-alpha photons with less scattering in the IGM and a concentrated SB profile similar to the one of a point source. Finally, we show that the SB profiles are steeper at high ionization fraction for the same LAE sample which can potentially be observed from the stacked profile of a large number of LAEs.
description: 22 pages, 23 figures, 2 tables, Accepted by MNRAS. Minor changes
Implicit Contracts, Labor Mobility, and Unemployment
Creators: name: Stiglitz, Joseph E.
name: Arnott, Richard J.
name: Hosios, Arthur J.
Publisher: name: Columbia University
Year: 1988
Subjects: Economics

description: When workers' search efforts are unobservable, the provision of insurance against firm-specific shocks adversely affects their incentives to find better jobs. In consequence, the equilibrium contract prescribes low wages and underemployment to encourage workers to leave low-productivity firms; and it employs both quits and layoffs to induce separations, with the mix depending both on the relative efficiency of on- and off-the-job search and on the search-incentive effects of layoffs.
title: Numerical simulation of CO₂ injection into deep saline aquifers
title: Hydrology days 2011
titleType: AlternativeTitle
title: AGU hydrology days 2011
titleType: AlternativeTitle
Creators: name: González-Nicolás, Ana
name: Cody, Brent
name: Baù, Domenico
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2011

description: 2011 annual AGU hydrology days was held at Colorado State University on March 21 - March 23, 2011.
description: Includes bibliographical references.
description: In the last two centuries, atmospheric concentrations of carbon dioxide (CO2) have increased by about 35% as a result of anthropogenic emissions. To reduce these emissions, geologic Carbon Capture and Sequestration (CCS) has been introduced as an emerging technology. Current estimations report that deep saline formations account for approximately 60% of the total subsurface storage. Carbon geologic storage involves the injection of CO2 in supercritical state into deep confined aquifers and can be modeled based upon the theory of two-phase flow in porous media. Supercritical CO2 is less dense and less viscous than brine, which causes gravity override. The mass conservation equations for the two phases constitute a non-linear system of partial differential equations (PDE). In this work, MFLOW3D, a numerical finite-element model, is used to solve this non-linear system of PDE's and to test the simulation of CO2 injection into a hypothetical and ideal confined aquifers. In MFLOW3D, the PDE's are discretized in space using linear three-dimensional finite elements in order to obtain a nonlinear system of ordinary differential equations. The temporal discretization is implemented via a finite difference backward-Euler scheme. The non-linearity is solved by using Newton-like iterative methods. Several scenarios are here simulated in order to analyze the effect of different factors on the accuracy of MFLOW3D results. These factors are: resolution and non regularity of finite element mesh, presence of subsurface heterogeneities, and lateral size of the domain. The reliability of simulations is checked for global accuracy in terms of the mass balance relative error for the injected CO2. The numerical tests offer an important feedback on the capabilities and limitations of the adopted numerical approach.
title: Hip and Groin Pain: Imaging of most frequent pathology.
Creators: name: Juanico Termes, Isabel
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Trauma
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Conventional radiography
subject: Musculoskeletal system
subject: Musculoskeletal joint
subject: Musculoskeletal
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To remind the normal anatomy of the hip joint. To describe the Magnetic Resonance (MR) imaging findings of common causes of hip and groin pain in adults,with a special focus in those entities with normal or subtle findings on radiographs. To review...
No quantum gravity signature from the farthest quasars
Creators: name: Tamburini, Fabrizio
name: Cuofano, Carmine
name: Della Valle, Massimo
name: Gilmozzi, Roberto
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Context: Strings and other alternative theories describing the quantum properties of space-time suggest that space-time could present a foamy structure and also that, in certain cases, quantum gravity (QG) may manifest at energies much below the Planck scale. One of the observable effects could be the degradation of the diffraction images of distant sources. Aims: We searched for this degradation effect, caused by QG fluctuations, in the light of the farthest quasars (QSOs) observed by the Hubble Space Telescope with the aim of setting new limits on the fluctuations of the space-time foam and QG models. Methods: We developed a software that estimates and compares the phase variation in the interference patterns of the high-redshift QSOs, taken from the snapshot survey of HST-SDSS, with those of stars that are expected to not be affected by QG effects. We used a two-parameter function to determine, for each test star and QSO, the maximum of the diffraction pattern and to calculate the Strehl ratio. Results: Our results go far beyond those already present in the literature. By adopting the most conservative approach where the correction terms, that describe the possibility for space-time fluctuations cumulating across long distances and partially compensate for the effects of the phase variations, are taken into account. We exclude the random walk model and most of the holographic models of the space-time foam. Without considering these correction terms, all the main QG scenarios are excluded. Finally, our results show the absence of any directional dependence of QG effects and the validity of the cosmological principle with an independent method; that is, viewed on a large scale, the properties of the Universe are the same for all observers, including the effects of space-time fluctuations.
description: 5 pages 6 figures
Sport injury and obesity prevention in junior high school students
Creators: name: Richmond, Sarah Ann
Publisher: name: Kinesiology
Year: 2012

description: Bibliography: p. 244-262
description: Objective: To examine the effectiveness of a high-intensity, neuromuscular training (NMT) prevention strategy in reducing injury and decreasing measures of adiposity in school-aged adolescents. Design: Pilot cluster-randomized controlled trial and historical cohort study. Subjects: Two junior high schools were approached for recruitment. Students from grades 7 - 9 ( ages 11 - 15 years) completed the study in both years [ (21 classes in year one (n= 725), 24 classes in year two (n= 686)]. Intervention: The twelve-week intervention program was a high-intensity NMT program (including aerobic, strength, balance and agility components) designed to reduce sport injury risk and measures of adiposity. The control program was a standardized warm-up (including aerobic, static and dynamic stretching). Outcome measures: Injury surveillance included injury assessment by a physiotherapist. The injury definition was sport injury resulting in medical attention and/or removal from a session and/or time loss from sport. Mean changes in measures of waist circumference (WC) and aerobic fitness (AF) were examined between intervention and control groups. Results: Based on Poisson regression analysis, adjusted for clustering by class and covariates, the incidence rate ratio (IRR) comparing the intervention group to the control group in the first year was 0.30 (95% CI; 0.19 - 0.49) for all sport injuries (ASI), lower extremity injury: (LEI) 0.31 (95% CI; 0.19 - 0.51), time loss injury (TLI): 0.37 (95%CI; 0.17 - 0.81), ankle sprain injury: 0.27 (95% CI; 0.15 - 0.50), and knee sprain injury: 0.36 (95% CI; 0.13 - 0.98). There was a decrease in WC: -0.99 centimeters [95%CI; -1.84 - (-0.14)] and an increase in AF: 1.28 ml kg-1.min-1 (95%CI; 0.66- 1.90) compared to the control school. In year two, results were consistent, demonstrating a protective effect for ASI (IRR= 0.35 (95% CI; 0.21 - 0.58), LEI (IRR= 0.29 (95% CI; 0.15 - 0.57), and knee injuries (IRR= 0.34 (95% CI; 0.12 - 0.95). Although not statistically significant, there was a reduction in TLI (IRR= 0.49 (95% CI; 0.21 - 1.20), and ankle injury (IRR= 0.44 (95% CI; 0.16 - 1.19). There was also a decrease in WC: -1.47 centimeters [95%CI; -1.88 - (-1.06)] and an increase in AF: 0.82 ml"kg-1.min-1 (95%CI; 0.17 - 1.46)] comparing the intervention year to control year. Conclusions: A high-intensity NMT program is protective of sport injury and reduces measures of adiposity in school-aged adolescents (ages 11 - 15 years).
title: Multi-detector computed tomography (MDCT) in assessment of surgically corrected congenital heart disease
Creators: name: khattab, mona
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Cross-sectional study
subject: Retrospective
subject: Obstruction / Occlusion
subject: Embolism / Thrombosis
subject: Congenital
subject: Shunts
subject: Contrast agent-intravenous
subject: Complications
subject: CT-High Resolution
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Cardiovascular system
subject: Cardiac

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Review MDCT appearance after surgical correction...
Tracing industrial emissions in the Athabasca oil sands region using stable isotope techniques
Creators: name: Proemse, Bernadette Cacilie
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 228-264
description: Some pages are in colour.
description: The Athabasca oil sands region (A0SR) in northeastern Alberta, Canada, is one of the world's largest oil reservoirs. Its heavy oil will become increasingly important as conventional energy resources decline. Due to the rapid industrial development in the A0SR, there have been increasing concerns about the impact of the emissions from the oil sands operations on the surrounding terrestrial and aquatic ecosystems. Stable isotope techniques may help to assess such impact provided that industrial emissions are isotopically distinct from background components. In order to trace nitrogen (N), sulfur (S) and molybdenum (Mo) emissions released by the oil sands industry, chemical and isotopic compositions of various N, S and Mo compounds in emissions and several environmental receptors were determined. Industrial N and S04 emissions were found to be isotopically distinct. 8 180 and ?? 170 of atmospheric nitrate deposition and 8180 values of atmospheric sulfate deposition showed trends towards lower values with increasing nitrate and sulfate deposition rates allowing for the quantification of industrial contributions to atmospheric nitrate and sulfate deposition in the A0SR (quantitative tracers). Lichens responded to elevated N and S deposition in close proximity to the oil sands operations, whereas chemical and isotopic compositions of N and S in pine needles showed no significant industrial impact. 15 8 N values of industrial emissions provide a qualitative tracer of industrial N emissions 34 in atmospheric ammonium deposition, lichen samples and soil water. 8 S values in atmospheric sulfate deposition and total S in lichen samples were indicative of emissions of reduced sulfur compounds, likely from tailing ponds. Different sample preparation techniques were tested for the analyses of 898195Mo. Results of Mo concentration and isotope ratio analyses on snow, air filter samples and fly ash samples from a coal-fired power plant suggest that industrial activities are associated with an increase in Mo concentrations and with Mo isotope fractionation, providing a potential new tracer for industrial activities in the AOSR. In summary, quantitative and qualitative tracers revealed that impact of industrial emissions on the surrounding environment in the AOSR were limited to 30 km distance to one of the major emission stacks.
title: Intraabdominal fat necrosis in patients with acute abdomen - Common mimicker
Creators: name: Gowdaiah, Shilpashri
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Inflammation
subject: Acute
subject: Observer performance
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: CT
subject: Emergency
subject: Abdomen
subject: Emergency Imaging

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Describe the imaging findings of intraabdominal fat necrosis. Identify the various peritoneal sites prone for fat necrosis. Determine the etiology, pathophysiology and temporal evolution of fat necrosis. Describe the common pathologies confused with...
Massless Leggett Mode in Three-band Superconductors with Time-Reversal-Symmetry Breaking
Creators: name: Lin, Shi-Zeng
name: Hu, Xiao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Leggett mode associated with out-of-phase oscillations of superconducting phase in multi-band superconductors usually is heavy due to the interband coupling, which makes its excitation and detection difficult. We report on the existence of a massless Leggett mode in three-band superconductors with time-reversal-symmetry-breaking (TRSB). The mass of the Leggett mode is small close to the TRSB transition and vanishes at the transition point, and thus locates within the smallest superconducting energy gap, which makes it stable and detectable. The mass of the Leggett mode can be measured by Raman spectroscopy. The thermodynamic consequences of this massless mode and possible realization in iron-based superconductors are also discussed.
description: 4.6 pages, 4 figures
Crustal structure beneath Hudson Bay from ambient-noise tomography
Creators: name: Pawlak, Agnieszka
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 168-190
description: Some pages are in colour.
description: Hudson Bay is a shallow inland sea located in north-central Canada. The underlying lithosphere preserves a complex deformational history that dates back to the Archean. The Hudson Bay Lithospheric Experiment, HuBLE, is a collaborative initiative aimed at understanding the lithospheric evolution beneath the Bay. The recent emergence of a methodology called ambient-noise tomography provides a tool to image the crust and upper mantle beneath the Bay with higher resolution than previously possible. Using ambient-noise generated by the Earth as a source, this technique requires continuous recordings of ground motion. The ambient­noise method is based on the cross-correlations of daily noise signals between station pairs to estimate empirical Green's Functions. This thesis is made up of there separate studies. The first is an isotropic application of the ambient-noise tomography method to image crustal structure beneath Hudson Bay. Results show crustal thinning beneath the Bay, allowing us to reject a hypothesis for eclogitization and crustal thickening, with support instead for an extensional hypothesis for the formation of the Hudson Bay basin. The next study focuses on anisotropic variations of velocity within the subsurface. Inversion results show a distinct outline of geologic boundaries in the upper to mid-crust that does not carry through into the lower crust. A significant change in anisotropic fabric is evident across the Trans-Hudson orogen (THO) suture zone, which allows us to establish that tectonic fabrics formed prior to collision. The third study employs joint inversion of ambient-noise data and teleseismic surface wave data for increasing resolution of the crust and upper mantle. Results show that the THO suture zone dips to the southeast within the crust and becomes vertical in the upper mantle. This feature is interpreted as a zone of weakness that extends through the lithosphere, providing a locus for initiation of localized lithospheric stretching.
Analyse der Entwicklung der Kriminalität von Zuwanderern in Schleswig-Holstein
Creators: name: Glaubitz, Christoffer
name: Bliesener, Thomas
Publisher: name: Universität Tübingen
Year: 2018
Subjects: subject: Flüchtling , Migration , Demographie , Mehrfachtäter , Intensivtäter , Verbrechensopfer
subject: 360

description: Zweitveröffentlichung. Download von https://kfn.de/publikationen/kfn-forschungsberichte
Russia vs. EU: Confrontation in a Contested Neighbourhood. A Challenge to the Helsinki Accords
Creators: name: Marsili, Marco
Publisher: name: Zenodo
Year: 2021
Subjects: Hybrid Warfare
Information Warfare
Soft Power
Nationalism
North Atlantic Treaty Organization - NATO
Russian Federation
Soviet Union
USSR
Frozen Conflicts
European Union EU
Baltic States
Crimea
Ukraine
Moldova
Transnistria
Armenia
Azerbaijan
Security
Defence
Nagorno-Karabakh/Artsakh
Georgia
South Ossetia
Abkhazia
Estonia
Latvia
Lithuania
smart power
hard power

description: The Helsinki Final Act of 1975, that concluded the first Conference on Security and Cooperation in Europe, reaffirmed the fundamental principle of renouncing the threat or use of force against the territorial integrity or political independence of any state. Through this agreement, the Soviet Union gained the implicit recognition of the ‘sphere of influence’ that was determined in Eastern Europe after the end of World War II. After the collapse of the Soviet Union, a series of conflicts arose between the Russian Federation and its neighbors, some of which are members of the European Union or participate in the European Neighbourhood Policy. Some of these conflicts were fought at the kinetic level, some otherthrough the resort to hybrid warfare, a blend of traditional and irregular tactics that makes overt and covert use of a wide range of tools: military and civilian, conventional and unconventional, including information and influence operations. This paper aims to investigate the hybrid warfare strategy carried out by the Russian Federation in the confrontation with the European Union to regain dominance in its contested neighbourhood: the Baltic states (Estonia, Latvia, and Lithuania), Ukraine (Crimea and Donbass, i.e. Donetsk and Luhansk People's Republics), Georgia (South Ossetia and Abkhazia) and Moldova (Transnistria).
description: This study was supported by the European Social Fund (FSE) and by the Fundação para a Ciência e a Tecnologia (FCT) under research grant No. SFRH/BD/136170/2018.
Foreword
Creators: name: Stiglitz, Joseph E.
name: Shapiro, Carl
name: Taylor, Timothy
Publisher: name: Columbia University
Year: 1987
Subjects: Economics

description: Your in-basket is overflowing, your nightstand is piled high with journals, and some articles on your reading list are celebrating birthdays since their date of publication while you struggle to find time to read them. You are already neck-deep in a paper blizzard. So why is the American Economic Association starting another journal?
Table of hyperfine anomaly in atomic systems
Creators: name: Persson, Jonas R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: This table is a compilation of experimental values of magnetic hyperfine anomaly in atomic and ionic systems. The last extensive compilation was published in 1984 by Buttgenbach (Hyperfine Interactions 20, (1984) p 1) and the aim here is to make an up to date compilation. The literature search covers the period to January 2011.