cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Parametric average value modeling of flyback converters in ccm and dcm including parasitics and snubbers
Creators: name: Sucu, Mehmet
Publisher: name: University of British Columbia
Year: 2011

description: Modeling of switched-mode DC-DC converters has been receiving significant interest due to their widespread applications. Averaged modeling is the most common approach (and tool) that has been used to analyze dynamic performance of converter circuits. Specifically, state-space averaged models are widely used because of their simplicity and generality. However, as has been shown in the literature, the challenges of directly applying this approach to predict the discontinuous variables (states) and include the parasitics and losses have limited application of this approach to a wider range of converter circuits. The recently introduced parametric average value models (PAVM) has a potential to overcome this problem. In this Thesis, first of all a second-order flyback converter has been investigated. An analytical solution of state-apace averaging and small-signal analysis of the flyback converter in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is given without and with parasitics. The PAVM methodology has been applied to the second-order model to overcome the problem of discontinuous state during the DCM. The snubber circuits in flyback converter have also been investigated. Appearance of snubbers in the model introduces a problem on the output voltage besides improving the efficiency prediction. It is shown that with the snubbers the conventional state-space averaging cannot predict the output voltage correctly in CCM and DCM. To solve this problem the model is partitioned into two different sub-circuits: i) switching sub-circuit circuit; and ii) non-switching sub-circuit. Thereafter it becomes possible apply the averaging on the switching sub-circuit only. Finally, a full-order flyback converter with two RC snubber circuits and all the basic parasitics is considered. The PAVM methodology has been extended to this class of switching converter for the first time. It is shown that including the snubbers and parasitics significantly improves the model accuracy in terms of predicting converter efficiency, which represents an appreciable improvement over all previously existing average models. The proposed model has been verified with detailed simulations and hardware measurements.
Barriers and enablers to uptake of a contemporary guideline-based management program for hip and knee osteoarthritis: A qualitative study
Creators: name: Wallis, Jason
name: Ackerman, Ilana N
name: Brusco, Natasha K
name: Kemp, Joanne
name: Sherwood, James
name: Young, Kirby
name: Jennings, Sophie
name: Trivett, Adrian
name: Barton, Christian
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 3202
subject: Clinical sciences

description: To explore barriers and enablers for referral to, and participation in, a contemporary guideline-based osteoarthritis management program – Good Life with osteoArthritis in Denmark (GLA:D Australia).
British Columbia's outsourced hospital workers : an occupational health and safety perspective
Creators: name: Siganporia, Pearl
Publisher: name: University of British Columbia
Year: 2011

description: Cleaners and Food Service Workers (CFSW) form a large yet understudied occupation group within the healthcare sector in terms of their occupational health and safety concerns. Four health regions in British Columbia (BC), Canada have outsourced these services. Evidence suggests an association between outsourced labor and higher risks of injury due to different standards of occupational health and safety. The purpose of this study was to investigate the impact of outsourcing on the health and safety outcomes and experiences among outsourced healthcare CFSWs compared to non-outsourced healthcare CFSWs. Two studies were conducted as part of this mixed-methods project. Study 1 was a quantitative assessment of injury rates, average days lost per claim and average costs per claim among CFSWs in hospitals that outsourced support services and those that did not, between two periods - pre (2001-2003) and post outsourcing (2005-2008). Study 2 was a qualitative study where twenty semi-structured telephone interviews with outsourced and non-outsourced CFSWs from five health authorities were conducted. Results indicate a decrease in incidence rate ratios (IRR) of injury rates post outsourcing for CFSW at outsourced facilities (Cleaners IRR =0.79, CI=0.57, 1.09; FSW IRR = 0.65, CI=0.57, 1.10), although the 95% CI estimates include ‘1’, indicating possibility of no difference between the two exposure periods. The IRR of average days lost per injury showed a decrease post outsourcing for CFSW at outsourced facilities (Cleaners IRR=0.81, CI=0.66, 0.99; FSW IRR=0.80, CI=0.50, 1.28), although the 95% CI estimates included ‘1’ for FSWs. Average costs per claim for outsourced cleaners were shown to decrease significantly (p<0.05) post outsourcing. No differences were seen in emergent themes from the interviews between outsourced and non-outsourced workers except for injury reporting. Workers at outsourced facilities indicated possible underreporting of injuries in their interviews. The study outcomes suggest a change in claims outcomes and experiences among outsourced workers with decreases in IRR of injury rates and days lost per claim and costs per claim, possibly due to underreporting of injuries among outsourced workers. This study provides preliminary evidence of the association between outsourcing and occupational health and safety and future research is warranted.
Phase diagram of a strongly disordered s-wave superconductor, NbN, close to the metal-insulator transition
Creators: name: Chand, Madhavi
name: Saraswat, Garima
name: Kamlapure, Anand
name: Mondal, Mintu
name: Kumar, Sanjeev
name: Jesudasan, John
name: Bagwe, Vivas
name: Benfatto, Lara
name: Tripathi, Vikram
name: Raychaudhuri, Pratap
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We present a phase diagram as a function of disorder in three-dimensional NbN thin films, as the system enters the critical disorder for the destruction of the superconducting state. The superconducting state is investigated using a combination of magnetotransport and tunneling spectroscopy measurements. Our studies reveal 3 different disorder regimes. At low disorder the (k_{F}l~10-4), the system follows the mean field Bardeen-Cooper-Schrieffer behavior where the superconducting energy gap vanishes at the temperature where electrical resistance appears. For stronger disorder (k_{F}l<4) a "pseudogap" state emerges where a gap in the electronic spectrum persists up to temperatures much higher than Tc, suggesting that Cooper pairs continue to exist in the system even after the zero resistance state is destroyed. Finally, very strongly disordered samples (k_{F}l<1) exhibit a pronounced magnetoresistance peak at low temperatures, suggesting that localized Cooper pairs continue to survive in the system even after the global superconducting ground state is completely destroyed.
description: pdf file with figures (Modified Version)
Improved arabic-to-english statistical machine translation by reordering post-verbal subjects for word alignment
Creators: name: Carpuat, Marine
name: Marton, Yuval
name: Habash, Nizar Y.
Publisher: name: Columbia University
Year: 2012
Subjects: Computer science

description: We study challenges raised by the order of Arabic verbs and their subjects in statistical machine translation (SMT). We show that the boundaries of post-verbal subjects (VS) are hard to detect accurately, even with a state-of-the-art Arabic dependency parser. In addition, VS constructions have highly ambiguous reordering patterns when translated to English, and these patterns are very different for matrix (main clause) VS and non-matrix (subordinate clause) VS. Based on this analysis, we propose a novel method for leveraging VS information in SMT: we reorder VS constructions into pre-verbal (SV) order for word alignment. Unlike previous approaches to source-side reordering, phrase extraction and decoding are performed using the original Arabic word order. This strategy significantly improves BLEU and TER scores, even on a strong large-scale baseline. Limiting reordering to matrix VS yields further improvements.
title: Developing a long-term, high-resolution, continental-scale, spatially distributed time-series of topographically corrected solar radiation
title: Hydrology days 2004
titleType: AlternativeTitle
title: AGU hydrology days 2004
titleType: AlternativeTitle
Creators: name: Hobbins, Michael T.
name: Ramírez, Jorge A.
name: Brown, Thomas C.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2004

description: 24th annual AGU hydrology days was held at Colorado State University on March 10-12, 2004.
description: Includes bibliographical references.
description: Our aim is to develop a long-term, high resolution net radiation data set that accounts for the effects of local topography that confound simpler analyses of the shortwave radiative balance in rugged terrain; such a dataset may then be used in direct observations of the effects of long-term change and variability in the solar radiation input to the land surface-atmosphere interface, particularly with reference to the estimation of evaporation. Direct and diffuse horizontal solar radiation data are gathered from all reporting stations across the conterminous United States for the period of 1950-1994 and integrated at a monthly time-step. Twelve years of diffuse horizontal radiation data missing from the data sources are replicated based on their historical relationships to coincident and contemporaneous observed direct normal and global radiation. A topographic correction factor is derived to account for the incidence of direct solar radiation on arbitrarily oriented surfaces at any latitude at any moment in any day of the year, and combined with slope and aspect surfaces for the conterminous U.S. derived from a 5-km digital elevation mode. This factor takes into account the solar geometry throughout the seasonal and diurnal cycles by incorporating an hourly weighting in proportion to the diffuse horizontal radiation recorded during the middle day of the month, and is then applied to spatially interpolated surfaces of direct solar radiation and combined with spatially interpolated surfaces of diffuse radiation. Summed, these provide the total incident solar radiation input to an existing energy budget analysis to yield the net surface radiation that may then be applied in models of evaporation. As preliminary uses of this dataset, mean annual and long-term trend surfaces of net surface radiation over the conterminous U.S. for the period WY 1953-1994 are presented.
Barriers and enablers to uptake of a contemporary guideline-based management program for hip and knee osteoarthritis: A qualitative study
Creators: name: Wallis, Jason A
name: Ackerman, Ilana N
name: Brusco, Natasha K
name: Kemp, Joanne
name: Sherwood, James
name: Young, Kirby
name: Jennings, Sophie
name: Trivett, Adrian
name: Barton, Christian J
Publisher: name: La Trobe
Year: 2021
Subjects: Uncategorized

description: To explore barriers and enablers for referral to, and participation in, a contemporary guideline-based osteoarthritis management program – Good Life with osteoArthritis in Denmark (GLA:D Australia).
Stop Using the Modified Work APGAR to Measure Job Satisfaction
Creators: name: Mielenz, Thelma J.
name: DeVellis, Robert F.
name: Battie, Michele C.
name: Carey, Timothy S.
Publisher: name: Columbia University
Year: 2011
Subjects: Epidemiology

description: Background. The psychometric properties of the Modified Work APGAR (MWA) scale are not established, yet researchers use this scale as an overall measure of job satisfaction. Objective. Perform psychometric analyses on the MWA scale using data from two populations. Methods. A landmark occupational cohort and a clinical cohort are populations with low back pain studied. The first five items of the MWA scale measure social support from coworkers, one item measures dissatisfaction with job tasks, and the sixth item measures lack of social support from a supervisor. Exploratory principal components analyses were conducted in both cohorts. Results. In both cohorts, the first five items of the MWA scale loaded consistently onto one factor, social support from coworkers subscale. Conclusions. Unless researchers are interested in measuring social support from coworkers only, future studies should use other reliable and valid instruments to measure a broad range of psychosocial work characteristics.
title: A practical approach to cranial ultrasound for diagnosing craniosynostosis in children less than 12 months of age
Creators: name: Jordan, Taja
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Paediatric
subject: Bones
subject: Head and neck
subject: Paediatric
subject: Ultrasound
subject: Screening
subject: Tissue characterisation
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: The aims of our poster are: to describe the technique for successful cranial ultrasound (CUS) examination, to briefly discuss its importance, US patterns of normal and some pathological...
AGINFRA PLUS D8.4 - AGINFRA Association Blueprint
Creators: name: Zervas, Panagiotis
name: Lokers, Rob
name: Knapen, Rob
name: Filter, Matthias
name: Sipos, Gergely
name: Boizet, Alice
name: Fernández, Enol
name: Penev, Lyubomir
name: Candela, Leonardo
name: Georgiev, Teodor
Publisher: name: Zenodo
Year: 2019
Subjects: Virtual Research Environments; Agro-Climatic; Food Safety; Food Security; agriculture

description: The main purpose of this deliverable is to present the sustainability approach of the AGINFRA+ project results. Its target audience comprises representatives of external interested communities as well as the European Commission (i.e. main funder of the AGINFRA+ project). More precisely, the document examines three action lines, each dedicated to sustain a main output of the AGINFRA+ project, namely:

	Consultancy service to deploy and configure custom VREs for agri-food research communities: corresponds to Virtual Research Environments (VREs) that can be developed and deployed as a service to various agri-food communities based on (a) the D4Science infrastructure (https://www.d4science.org/) and (b) the customization of generic or domain specific services offered by various partners, which have been tested and validated with agri-food researchers during the project lifetime.
	Data Journals: corresponds to the two data journals that we have been set-up based on the ARPHA publishing platform (http://arphahub.com/), namely the Food Modelling Journal (https://fmj.pensoft.net/) and the Viticulture Data Journal (https://vdj.pensoft.net/)
	Thematic VREs: corresponds to the four VREs that have been set-up during the project lifetime for supporting the three user communities of the project, namely (a) one VRE for Agro-Climatic and Economic Modelling community, (b) two VREs for the Food Safety Risk Assessment Community and (c) one VRE for Food Security Community

Additionally, the report examines the management of AGINFRA+ after the end of the project funding. More specifically, although in the project DoA it has been proposed the establishment of a legal entity form (through a not-for-profit association) for the further operation and evolution of AGINFRA+ as a joint venture of involved stakeholders, it seems that this solution will not be operational considering the blend of the consortium partners involved. Thus, it has been considered among the partners that it will be better cost and operational wise to manage AGINFRA+ through a Memorandum of Agreement for a specified period (e.g. until December 2020) that will ensure that AGINFRA+ will be active in the EU infrastructures map and available to users with the support needed.

Finally, the report concludes with the presentation of the foreseen next steps and the decisions that need to be further discussed among the consortium partners during the last year of the project towards finalizing the proposed sustainability plan of the project results.
Detecting and Correcting Syntactic Errors in Machine Translation Using Feature-Based Lexicalized Tree Adjoining Grammars
Creators: name: Ma, Wei-Yun
name: McKeown, Kathleen
Publisher: name: Columbia University
Year: 2012
Subjects: Computer science

description: Statistical machine translation has made tremendous progress over the past ten years. The output of even the best systems, however, is often ungrammatical because of the lack of sufficient linguistic knowledge. Even when systems incorporate syntax in the translation process, syntactic errors still result. To address this issue, we present a novel approach for detecting and correcting ungrammatical translations. In order to simultaneously detect multiple errors and their corresponding words in a formal framework, we use feature-based lexicalized tree adjoining grammars, where each lexical item is associated with a syntactic elementary tree, in which each node is associated with a set of feature-value pairs to define the lexical item’s syntactic usage. Our syntactic error detection works by checking the feature values of all lexical items within a sentence using a unification framework. In order to simultaneously detect multiple error types and track their corresponding words, we propose a new unification method which allows the unification procedure to continue when unification fails and also to propagate the failure information to relevant words. Once error types and their corresponding words are detected, one is able to correct errors based on a unified consideration of all related words under the same error types. In this paper, we present some simple mechanism to handle part of the detected situations. We use our approach to detect and correct translations of six single statistical machine translation systems. The results show that most of the corrected translations are improved.
The Solar Cycle: A new prediction technique based on logarithmic values
Creators: name: Du, Z. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A new prediction technique based on logarithmic values is proposed to predict the maximum amplitude (Rm) of a solar cycle from the preceding minimum aa geomagnetic index (aamin). The correlation between lnRm and lnaamin (r = 0.92) is slightly stronger than that between Rm and aamin (r = 0.90). From this method, cycle 24 is predicted to have a peak size of Rm (24) = 81.7(1\pm13.2%). If the suggested error in aa (3 nT) before 1957 is corrected, the correlation coefficient between Rm and aamin (r = 0.94) will be slightly higher, and the peak of cycle 24 is predicted much lower, Rm(24) = 52.5\pm13.1. Therefore, the prediction of Rm based on the relationship between Rm and aamin depends greatly on the accurate measurement of aa.
description: 6 pages, 3 figures, Accepted for publication in Astrophysics & Space Science
Evaluation of Task Shifting in Community-Based DOTS Program as an Effective Control Strategy for Tuberculosis
Creators: name: Gabriel, Andre P.
name: Mercado, Charles P.
Publisher: name: Columbia University
Year: 2011
Subjects: Medicine
Public health

description: Tuberculosis (TB) remains to be the most prevalent and debilitating pulmonary (PTB) infection in the world today, affecting about one-third of the world's population. TB is an endemic disease in many developing countries, and efforts at eliminating the disease remain futile. While the course of the disease is indolent with years of latency, the reactivation of the disease can pose serious pulmonary and systemic infections that compromise multiple organ functions which lead to respiratory failure or end-organ damage. Despite attempts to control and eradicate the mycobacterium, the prevalence of the disease remains high due to increasing population rate, persistence of poverty and poor health care, treatment failure, increasing multidrug resistance as a consequence of treatment failure and poor compliance, and existence of comorbid conditions that compromise immune response. Limited government resources to screen and monitor disease progression of TB in third world countries hamper the eradication of the disease. In response, we have evaluated the efficiency and effectivity of a Community-Based Directly Observed Treatment, Short-Course (CB-DOTS), which is an equally effective alternative strategy to health center DOTS.
Sharing code: a personal perspective
Creators: name: Spencer, Michael
Publisher: name: Zenodo
Year: 2023
Subjects: ECR
open source
reproducibility
GIS

description: These slides were presented for an early career panel on open science and reproducibility at the 2023 edition of GISRUK (https://gisruk.org/gisruk-2023). The Pdf file includes the slides and notes pages.
Protein Secondary Structure Prediction using Deterministic Sequential Sampling
Creators: name: Liang, Kuo-Ching
name: Wang, Xiaodong
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences

description: The prediction of the secondary structure of a protein from its amino acid sequence is an important step towards the prediction of its three-dimensional structure. While many of the existing algorithms utilize the similarity and homology to proteins with known secondary structures in the Protein Data Bank, other proteins with low similarity measures require a single sequence approach to the discovery of their secondary structure. In this paper we propose an algorithm based on the deterministic sequential sampling method and hidden Markov model for the single-sequence protein secondary structure prediction. The predictions are made based on windowed observations and by the weighted average over possible conformations within the observation window. The proposed algorithm is shown to achieve better performance on real dataset compared to the existing single-sequence algorithm.
Number of trials necessary to achieve a representative performance of accuracy and timing during combat shooting
Creators: name: Coleman, Jemma
name: Huynh, Minh
name: Middleton, Kane
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 3202
subject: Clinical sciences
classificationCode: 3208
subject: Medical physiology
classificationCode: 4207
subject: Sports science and exercise

description: Acquisition evaluations are expensive, have a high time liability, and tend to prioritize engineering requirements over human factors and good experimental design. Shooting serials usually consist of static prone shooting to minimize movement variability, increase reliability of accuracy and timing data or use a single data point to make acquisition decisions. To better understand the number of trials required to achieve representative performance of accuracy and timing, 60 shots from the standing unsupported position while cyclically moving the weapon from the low ready to shoot was utilized. Intra-class correlations, standard error of measurement, minimal detectable change, and sequential averaging analysis (SAA) were used to evaluate the variables of radial error, shot interval, x-bias and y-bias over the 60 shots. The number of trials required to achieve an intraclass correlation of greater than 0.8 ranged from 2 (shot interval) to 58 (y-bias), whereas SAA varied between 3 (x-bias) and 43 (shot interval) trials. When averaging 10 shots at a time, the moving intraclass correlation remained above 0.8 for radial error and y-bias between 7 and 15 shots, shot interval from the second shot, but x-bias never reached 0.8. The number of trials required to satisfy each reliability method was inconsistent, in line with previous literature. Given the limitations identified in the literature as well as practical considerations such as the preference for prioritizing radial error reasonable performance stability can be achieved after 15 shots, and using the moving intraclass correlation results it is recommended that the first six shots are discarded with the following nine shots used for analysis.
Comparison of Different Parallel Implementations of the 2+1-Dimensional KPZ Model and the 3-Dimensional KMC Model
Creators: name: Kelling, Jeffrey
name: Ódor, Géza
name: Nagy, Máté Ferenc
name: Schulz, Henrik
name: Heinig, Karl-Heinz
Publisher: name: arXiv
Year: 2012
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We show that efficient simulations of the Kardar-Parisi-Zhang interface growth in 2 + 1 dimensions and of the 3-dimensional Kinetic Monte Carlo of thermally activated diffusion can be realized both on GPUs and modern CPUs. In this article we present results of different implementations on GPUs using CUDA and OpenCL and also on CPUs using OpenCL and MPI. We investigate the runtime and scaling behavior on different architectures to find optimal solutions for solving current simulation problems in the field of statistical physics and materials science.
description: 14 pages, 8 figures, to be published in a forthcoming EPJST special issue on "Computer simulations on GPU"
The LS method for the classical groups in positive characteristic and the Riemann Hypothesis
Creators: name: Lomelí, Luis Alberto
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F70, 22E50, 22E55

description: We provide a definition for an extended system of $γ$-factors for products of generic representations $τ$ and $π$ of split classical groups or general linear groups over a non-archimedean local field of characteristic $p$. We prove that our $γ$-factors satisfy a list of axioms (under the assumption $p \neq 2$ when both groups are classical groups) and show their uniqueness (in general). This allows us to define extended local $L$-functions and root numbers. We then obtain automorphic $L$-functions $L(s,τ\times π)$, where $τ$ and $π$ are globally generic cuspidal automorphic representations of split classical groups or general linear groups over a global function field. In addition to rationality and the functional equation, we prove that our automorphic $L$-functions satisfy the Riemann Hypothesis.
Kinetic studies on the viability to recover natural gas and capture co2 using naturally-occurring gas hydrates deposits
Creators: name: Giraldo, Carlos
Publisher: name: University of Calgary
Year: 2011

description: Bibliography: p. 199-217
description: Many pages are in colour.
description: Increasing generation of greenhouse gases (CU2,N OR)f rom the combustion of fossil fuels has created a world-wide concern over climate change. This fact has stimulated research on the use of gas hydrates deposits as a possible mean to reduce the CO2 emissions to the atmosphere. In this study, CH4-0O2 mixed gas hydrate formation kinetics were investigated using Raman spectroscopy and Powder X-ray diffraction at temperatures below 273K; these data were well represented by the model of Avrami (1939, 1940, 1941). In addition, the intrinsic rate of formation and decomposition of gas hydrates formed from methane, carbon dioxide and their mixtures was studied using an isothermal-isobaric semibatch stirred tank reactor coupled with a Focus Beam Reflectance Measurement (FBRM) probe to obtain information on the gas hydrates formation and decomposition kinetics when the temperatures were above 273K. A methodology adopted from the literature was used to determine the particle size distribution of the gas hydrates, which particles are now considered as oblate spheroids rather than perfect spheres. New mathematical models to predict the rate of growth and decomposition of mixed hydrates are proposed; these new models extend the kinetic theory of Englezos ( 1987b) and Clarke and Bishnoi (2000) to account for some of the non-idealities not considered in the original models. The predictions of these new alternatives were found to closely match the experimental data. As an application of these intrinsic kinetics studies that were conducted in this research, a natural gas recovery simulation was carried out using STARSTM to model the CH4-hydrate decomposition in a reservoir using the depressurization method. Its results were investigated using a statistical sensitivity analysis (full factorial design-ANOVA). The results showed that the main variable that affects the CH4 production from gas hydrates reservoirs is the absolute permeability of the system.
title: An index to cottonwood establishment potential
title: Hydrology days 2013
titleType: AlternativeTitle
title: AGU hydrology days 2013
titleType: AlternativeTitle
Creators: name: Milhous, Robert T.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2013

description: 2013 annual AGU hydrology days was held at Colorado State University on March 25 - March 27, 2013.
description: Includes bibliographical references.
description: The logic and an application of a program that calculates the potential for the establishment of cottonwood and other riparian tress along rivers in arid North America is the topic of this paper. Establishment of cottonwood is essentially restricted to riverine sites that are moist and have clean substrate. Seedlings can become established on moist, open areas along the edge of the channel and within the channel. Streamflows following establishment may remove many of the seedlings. Data for a USGS gage on the Virgin River in Southwestern Utah is used as an example in the presentation of a computational procedure for an index to the potential for establishment. Three indices are presented: 1) peak streamflow establishment, 2) linked peak streamflow establishment, and 3) establishment width. Peak Streamflow establishment index: a commonly held view is that floods establish the vegetation in the riparian zone of a river; the peak streamflow establishment index is the magnitude of the annual maximum streamflows that exceed the bankfull discharge. Linked peak streamflow establishment index: a concern with the peak streamflows establishment index is that seeds deposited on substrate may germinate and seedlings grow but if the substrate is in the stream channel the seedlings will be destroyed by streamflows following establishment during the next couple of years; the linked peak streamflow index for a year is zero if the streamflows in a destruction period following the establishment period are higher. Width establishment index: the logic is the same as the linked peak streamflow index with the streamflows transformed to a width related factor. The concepts related to the width index illustrate the linking of peak streamflows to following streamflows.
title: Endoleaks in endovascular abdominal aortic aneurysm repair: Classification, diagnosis and therapeutic management.
Creators: name: moreno, Leticia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Not applicable
subject: Not applicable
subject: Aneurysms
subject: Stents
subject: Diagnostic procedure
subject: Complications
subject: CT-Angiography
subject: Vascular
subject: Arteries / Aorta
subject: Vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1. Expose the different types of endoleaks and explain the most useful exploratory technique in its detection. 2. Describe and show the basic radiological findings of this complication. 3. Review the therapeutic management of...
title: Main complications in liver transplantation detected by ultrasound.
Creators: name: moreno, Leticia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Not applicable
subject: Not applicable
subject: Transplantation
subject: Diagnostic procedure
subject: Complications
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Liver
subject: Abdomen
subject: Abdominal Viscera

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1. Review the most common radiological findings of the transplanted liver by sonographic evaluation. 2. Explain the ultrasound technique in post-liver transplantation assesment. 3. Describe the main radiological findings of postoperative...
APOE Genotype-Function Relationship: Evidence of −491 A/T Promoter Polymorphism Modifying Transcription Control but Not Type 2 Diabetes Risk
Creators: name: Geng, Hua
name: Law, Peggy P. Y.
name: Ng, Maggie C. Y.
name: Li, Ting
name: Liang, Li-Yun
name: Ge, Tiang-Fang
name: Wong, Kam-Bo
name: Liang, Chun
name: Ma, Ronald C.
name: So, Wing-Yee
name: Chan, Juliana C. N.
name: Ho, Yuan-Yuan
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Biometry
subject: Genetics
subject: FOS: Biological sciences

description: Background: The apolipoprotein E gene (APOE) coding polymorphism modifies the risks of Alzheimer's disease, type 2 diabetes, and coronary heart disease. Aside from the coding variants, single nucleotide polymorphism (SNP) of the APOE promoter has also been shown to modify the risk of Alzheimer's disease. Methodology/Principal Findings: In this study we investigate the genotype-function relationship of APOE promoter polymorphism at molecular level and at physiological level: i.e., in transcription control of the gene and in the risk of type 2 diabetes. In molecular studies, the effect of the APOE –491A/T (rs449647) polymorphism on gene transcription was accessed by dual-luciferase reporter gene assays. The –491 A to T substitution decreased the activity (p&0.05) of the cloned APOE promoter (–1017 to +406). Using the –501 to –481 nucleotide sequence of the APOE promoter as a ‘bait’ to screen the human brain cDNA library by yeast one-hybrid system yielded ATF4, an endoplasmic reticulum stress response gene, as one of the interacting factors. Electrophoretic-mobility-shift assays (EMSA) and chromatin immuno-precipitation (ChIP) analyses further substantiated the physical interaction between ATF4 and the APOE promoter. Over-expression of ATF4 stimulated APOE expression whereas siRNA against ATF4 suppressed the expression of the gene. However, interaction between APOE promoter and ATF4 was not –491A/T-specific. At physiological level, the genotype-function relationship of APOE promoter polymorphism was studied in type 2 diabetes. In 630 cases and 595 controls, three APOE promoter SNPs –491A/T, –219G/T (rs405509), and +113G/C (rs440446) were genotyped and tested for association with type 2 diabetes in Hong Kong Chinese. No SNP or haplotype association with type 2 diabetes was detected. Conclusions/Significance: At molecular level, polymorphism –491A/T and ATF4 elicit independent control of APOE gene expression. At physiological level, no genotype-risk association was detected between the studied APOE promoter SNPs and type 2 diabetes in Hong Kong Chinese.
title: Evaluation of response to therapy. Sclerotic bone lesions.
Creators: name: Ramos, Paula
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Neoplasia
subject: Metastases
subject: Radiation therapy / Oncology
subject: PET-CT
subject: CT
subject: Oncology
subject: Bones
subject: Oncologic Imaging
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To understand the concept of sclerotic bone reaction as criteria of response to treatment when there are other clinical and imaging findings that join the response to treatment. To intend to prove that a new sclerotic lesion on conventional...
The meaning of cardiac rehabilitation to patients
Creators: name: Sandham, Sarah
Publisher: name: University of Calgary
Year: 2012

description: Bibliography: p. 140-145
description: In this thesis, I take an anthropological approach (using ethnographic methods) to explore the meaning of a cardiac rehabilitation program in Calgary, Alberta (Cardiac Wellness Institute of Calgary (CWIC)) to its patients. Cardiac rehabilitation programs are exercise-based secondary prevention for individuals suffering from a range of heart problems. Through education classes and supervised exercise sessions, such programs aim to improve heart patients' overall fitness, and promote lifestyle habits which can reduce risk of further disease. I examined how the meaning patients attribute to the program fits within two different theoretical conceptions of cardiac rehabilitation; as a site where power and surveillance discipine non-conforming (unhealthy) bodies, or as a site where medical practices constitute an ideal form of care. I demonstrate how the meaning patients attribute relates to the elements of their experience and the structure of the program which fall under an overarching "logic of care" (Mol 2008).
1H0707-495 in 2011: An X-ray source within a gravitational radius of the event horizon
Creators: name: Fabian, A. C.
name: Zoghbi, A.
name: Wilkins, D.
name: Dwelly, T.
name: Uttley, P.
name: Schartel, N.
name: Miniutti, G.
name: Gallo, L.
name: Grupe, D.
name: Komossa, S.
name: Santos-Lleo, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Narrow Line Seyfert 1 Galaxy 1H0707-495 went in to a low state from 2010 December to 2011 February, discovered by a monitoring campaign using the X-Ray Telescope on the Swift satellite. We triggered a 100 ks XMM-Newton observation of the source in 2011 January, revealing the source to have dropped by a factor of ten in the soft band, below 1 keV, and a factor of 2 at 5 keV, compared with a long observation in 2008. The sharp spectral drop in the source usually seen around 7 keV now extends to lower energies, below 6 keV in our frame. The 2011 spectrum is well fit by a relativistically-blurred reflection spectrum similar to that which fits the 2008 data, except that the emission is now concentrated solely to the central part of the accretion disc. The irradiating source must lie within 1 gravitational radius of the event horizon of the black hole, which spins rapidly. Alternative models are briefly considered but none has any simple physical interpretation.
description: 9 pages, 19 figures, MNRAS in press
The Ethics Police?: IRBs' Views Concerning Their Power
Creators: name: Klitzman, Robert L.
Publisher: name: Columbia University
Year: 2011
Subjects: Medical ethics

description: In recent years, tensions between IRBs and principal investigators (PIs) have risen, posing the needs to understand these conflicts, their underlying causes, and possible solutions. Researchers frequently complain about IRBs, but how IRBs perceive and respond to these criticisms is unclear. Methods: I conducted in-depth, semi-structured interviews of two hours each with 46 chairs, administrators, and members. I contacted the leadership of 60 IRBs around the country (every fourth one in the list of the top 240 institutions by NIH funding) and interviewed IRB leaders from 34 of these institutions (response rate = 55%). Results: Interviewees suggest that IRBs and PIs may view the nature and causes of these conflicts very differently and misunderstand each other, exacerbating tensions. Interviewees often recognized that they were seen by PIs as having power, but many IRBs saw themselves as not having it (e.g., because they are “merely following the regulations,” and their process is “open,” impersonal and unbiased, and they are themselves subject to higher administrative agencies), or as having it, but feeling it is small, and/or justified (e.g., because it is based on overriding goals and “the community values,” and IRBs are trying to help PIs). Questions emerge as to whether IRBs do or should have power, and if so, what kind, how much, and when. Several factors may affect these tensions. Conclusions: This study, the first to explore how IRBs perceive and understand conflicts and power relationships with PIs, suggests how IRBs and PIs may differ in viewing their respective roles and relationships, exacerbating tensions. These issues have critical implications for IRBs and PIs—to enhance their awareness and understanding of these conflicts (e.g., that IRBs may have discretionary power) and the underlying causes involved, and for increasing attention to research, practice, and policy concerning these areas of IRB functioning and interactions with PIs.
title: MRI of the Intervertebral Disc: Focus on Signal Intensity Changes
Creators: name: Maturi, Mariacristina
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Not applicable
subject: Not applicable
subject: Calcifications / Calculi
subject: Education
subject: MR
subject: Musculoskeletal spine
subject: Anatomy
subject: Musculoskeletal
subject: Not applicable

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Magnetic resonance (MRI) represents the imaging of choice for investigating intervertebral disc disorders. Understanding of the anatomy and physio-pathological changes in the intervertebral disc is fundamental for an accurate interpretation of the...
ASSESSMENT OF INTERNAL AUDIT EFFECTIVENESS TREND: CASE OF ETHIOPIAN PUBLIC UNIVERSITY
Creators: name: NETSANET BIBISSO DODA
name: Dr. K.V. RAMANA MURTHY
Publisher: name: Zenodo
Year: 2023
Subjects: Internal audit effectiveness, audit findings, implementation of audit recommendations.

description: Abstract
This study aimed to examine the trajectory of internal audit effectiveness in Ethiopia's higher education context. The study employed a quantitative data type. The data was collected from nine higher education institutions (HEIs) purposively selected within the southern cluster. Five years of data were employed. The research was conducted using the institutions' internal and external audit reports. Graphs, tables, and charts are commonly employed in academic discourse. The findings indicate that the IA function does not detect material misstatement and fraud. Additionally, the internal control system needs to be stronger, and management needs to support the implementation of recommendations made by auditors entirely. Furthermore, there needs to be a risk management strategy. The study suggests a collaborative effort between management and internal auditors is essential to enhance value. Management designs systems and procedures and allocates necessary resources to enhance the internal system and internal audit functions. The auditors engage in consultation with management in order to establish the control environment and develop a plan for risk assessment design.
title: Radiology non-medical referral education development: A Scottish health board perspective.
Creators: name: Stanley, Jason
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Not applicable
subject: Not applicable
subject: Workforce
subject: Quality assurance
subject: Education and training
subject: Radiation safety
subject: Education
subject: Audit and standards
subject: Digital radiography
subject: CT
subject: Conventional radiography
subject: Radioprotection / Radiation dose
subject: Radiographers
subject: Radiation physics
subject: Radiation Protection

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: 1.Establish the current referral pathway range amongst non-medical referrers; 2.Identify the imaging requesting and educational needs of staff referring for ionising radiation-based imaging; 3.Establish factors for a common educational package for...
title: Geometric methods in the study of the snow surface roughness
title: Hydrology days 2015
titleType: AlternativeTitle
title: AGU hydrology days 2015
titleType: AlternativeTitle
Creators: name: Fassnacht, Steven R.
name: Oprea, Iuliana
name: Shipman, Patrick
name: Kirkpatrick, James
name: Borleske, George
name: Motta, Francis
name: Kamin, David
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2015

description: 2015 annual AGU hydrology days was held at Colorado State University on March 23 - March 25, 2015.
description: Includes bibliographical references.
description: The snow surface is very dynamic, and the roughness of the snowpack surface varies spatially and temporally. The snow surface roughness influences the movement of air across the snow surface as well as the resulting transfers of energy, and is used to estimate the sensible and latent heat fluxes to and/or from the snow surface to the atmosphere. In the present work we used different metrics, including the random roughness, autocorrelation, and fractal dimension, geometric roughness length, curvature, and power spectrum density to characterize the roughness of a typical snow surface. The data for the surface come from airborne LIDAR measurements taken during from the NASA Cold Land Process Experiment in late March 2003 at the Fraser Alpine intensive study area. The surface elevation data were rotated to be parallel to the dominant wind direction and were interpolated to a 1-m resolution. We provide a comparison of methods and present their possible applicability for other datasets.
The Capabilities of a Perturbed Toric Code as a Quantum Memory
Creators: name: Kay, Alastair
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the effect of typical, unknown perturbations on the 2D toric code when acting as a quantum memory, incorporating the effects of error correction on read-out. By transforming the system into a 1D transverse Ising model undergoing an instantaneous quench, and making extensive use of Lieb-Robinson bounds, we prove that for a large class of perturbations, the survival time of stored information grows at least logarithmically with the system size. A uniform magnetic field saturates this scaling behavior. We show that randomizing the stabilizer strengths gives a polynomial survival time with a degree that depends on the strength of the perturbation.
description: 4 and a bit pages, 3 figures v3: Published version
Resonant Response in Non-equilibrium Steady States
Creators: name: Salgado-Garcia, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The time-dependent probability density function of a system evolving towards a stationary state exhibits an oscillatory behavior if the eigenvalues of the corresponding evolution operator are complex. The frequencies ω_n, with which the system reaches its stationary state, correspond to the imaginary part of such eigenvalues. If the system is further driven by a small and oscillating perturbation with a given frequency ω, we formally prove that the linear response to the probability density function is enhanced when ω= ω_n. We prove that the occurrence of this phenomenon is characteristic of systems that reach a non-equilibrium stationary state. In particular we obtain an explicit formula for the frequency-dependent mobility in terms of the of the relaxation to the stationary state of the (unperturbed) probability current. We test all these predictions by means of numerical simulations considering an ensemble of non-interacting overdamped particles on a tilted periodic potential.
description: 9 pages, 10 figures, submitted to Physical Review E