cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Uncertainty in mass-balance calculations of non-point source loads to the Arkansas River
title: Hydrology days 2006
titleType: AlternativeTitle
title: AGU hydrology days 2006
titleType: AlternativeTitle
Creators: name: Mueller, Jennifer
name: Gates, Timothy K.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2006

description: 2006 annual AGU hydrology days was held at Colorado State University on March 20 - March 22, 2006.
description: Includes bibliographical references.
description: Field data on flow and solute concentrations are used in mass balance cal-culations to estimate the non-point source loads of salt to an upstream reach and to a downstream reach along the lower Arkansas River in southeastern Colorado. A similar analysis is conducted to estimate selenium (Se) loads to the downstream reach. The unknown variable calculated to bring closure to the mass balance along each river reach for each sample period is the total unmeasured non-point load in surface water and groundwater that enters along ungauged tributaries and along the main stem of the river. Several sources of uncertainty in the mass balance calculations are considered: instrument error in the data sonde of field electrical conductivity (EC) measurements at multiple locations during a sample period and in laboratory analysis of water samples, uncertainty in assuming that the instantaneous EC measurements at locations represent corresponding EC averaged over the entire sample period and over the cross section, ambiguity in using fitted regression equations to relate EC values to concentrations of total dissolved solids (TDS) and dissolved Se, and error in streamflow measurements at gauging stations. These analyses render models of the input vari-ables to the mass balance equations for each reach as random variables with specified probability distributions. Monte Carlo simulation is used to solve the resulting stochastic mass balance equations to predict distributions of possible values of the non-point source loads for TDS and Se. Results indicate substantial uncertainty in the predicted loads. Annual average coefficients of variation (CV) in predicted TDS loads along the upstream river reach range between 0.37 and 0.91, and annual averages of 90% prediction intervals range from 2,404 to 22,562 (kg/day)/km. Annual average CV in predicted TDS load values for the downstream reach range between 0.09 and 0.20, and annual averages of 90% prediction intervals range from 2,615 to 8,312 (kg/day)/km. For the Se mass balance along the downstream reach, the average CV over nine sample periods within a three-year period is 0.07, and the 90% prediction intervals of Se loads range from 0.008 to 0.016 (kg/day)/km.
title: Magnetic resonance diffusion tensor imaging in differentiation of spinal cord intramedullary tumors and tumor mimics
Creators: name: Khedr, Doaa
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Neuro
subject: CNS
subject: Neuroradiology spine
subject: Oncology
subject: MR
subject: MR-Diffusion/Perfusion
subject: MR-Functional imaging
subject: Diagnostic procedure
subject: Neoplasia
subject: Prospective
subject: Cross-sectional study

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: one of the most important differential diagnosis for intramedullary spinal cord tumors are the inflammatory processes. Despite, the specific radiological appearance of each disease category. The conventional routine MRI as well as the clinical...
Finite element modelling of shock-induced damages on ceramic hip prostheses
Creators: name: Uribe, Juliana
name: Hausselle, Jérôme
name: Geringer, Jean
Publisher: name: arXiv
Year: 2012
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: The aim of this work was to simulate the behaviour of hip prostheses under mechanical shocks. When hip joint is replaced by prosthesis, during the swing phase of the leg, a microseparation between the prosthetic head and the cup could occur. Two different sizes of femoral heads were studied: 28 and 32 mm diameter, made, respectively, in alumina and zirconia. The shock-induced stress was determined numerically using finite element analysis (FEA), Abaqus software. The influence of inclination, force, material, and microseparation was studied. In addition, an algorithm was developed from a probabilistic model, Todinov's approach, to predict lifetime of head and cup. Simulations showed maximum tensile stresses were reached on the cup's surfaces near to rim. The worst case was the cup-head mounted at 30^{\circ}. All simulations and tests showed bulk zirconia had a greater resistance to shocks than bulk alumina. The probability of failure could be bigger than 0.9 when a porosity greater than 0.7% vol. is present in the material. Simulating results showed good agreement with experimental results. The tests and simulations are promising for predicting the lifetime of ceramic prostheses.
Identifying interaction effects in high-throughput studies of growth
Creators: name: Ushey, Kevin
Publisher: name: University of British Columbia
Year: 2011

description: In genomics, a newly emerging way to learn about gene function is through growth curve experiments. In such experiments, different strains of yeast (Saccharomyces cerevisiae) – single mutants having one gene knocked out, double mutants having two knocked out – are grown in microtitre plates, with an automated system capturing the size of cell populations over time. These growth curves can provide information on the function(s) of the associated genes. Of particular interest are interaction effects, where the growth of a double mutant is surprising in light of the growth of normal yeast and its two corresponding single mutants. There is currently a lack of consensus on the best way to analyze growth curve data. For a growth curve experiment, strain fitness must be defined in some way in order to separate and rank strains according to their ability to grow, and it is uncertain which possible definitions of strain fitness have better ability to identify real interaction effects than others. After defining strain fitness, this quantity must be estimated for each strain through either parametric or non-parametric model based approaches, and the approach used can also affect the ability to identify interaction effects. Furthermore, different problems related to the experimental protocol present themselves when attempting to model growth curves, and these need to be accounted for as well. In this thesis, I will explore and compare some commonly used models and definitions of strain fitness when analyzing growth curves, and relate them concretely to the exponential and logistic models upon which they are built. I will compare and contrast multiple methods used when attempting to analyze growth curve experiments, and seek to propose Area Under the Curve as a definition of strain fitness which prompts a derived variables modeling strategy that performs well in ease of implementation, retains flexibility in assessment of a heterogeneous mix of sigmoidal and non-sigmoidal growth curves, and remains able to identify interaction effects.
Staffing a Call Center with Uncertain Arrival Rate and Absenteeism
Creators: name: Whitt, Ward
Publisher: name: Columbia University
Year: 2006
Subjects: Uncertainty (Information theory)
Call centers
Absenteeism (Labor)
Industrial engineering
Probabilities
Queuing theory
Operations research

description: This paper proposes simple methods for staffing a single-class call center with uncertain arrival rate and uncertain staffing due to employee absenteeism. The arrival rate and the proportion of servers present are treated as random variables. The basic model is a multi-server queue with customer abandonment, allowing non-exponential service-time and time-to-abandon distributions. The goal is to maximize the expected net return, given throughput benefit and server, customer-abandonment and customer-waiting costs, but attention is also given to the standard deviation of the return. The approach is to approximate the performance and the net return, conditional on the random model-parameter vector, and then uncondition to get the desired results. Two recently-developed approximations are used for the conditional performance measures: first, a deterministic fluid approximation and, second, a numerical algorithm based on a purely Markovian birth-and-death model, having state-dependent death rates.
title: Dual-energy contrast-enhanced spectral mammography features in diagnosis of multicentric and bilateral breast cancer at the stage of preoperative planning
Creators: name: Didenko, Vera
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Breast
subject: Breast
subject: Oncology
subject: Mammography
subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: Staging
subject: Cancer
subject: Prospective
subject: Diagnostic or prognostic study
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Breast cancer is the most common cancer and the leading cause of death from cancer among women throughout the world. In 2018, there were an estimated 2.1 million new cases of the disease and 627 000 deaths from breast cancer worldwide [1]. Surgery...
Heavy-traffic extreme-value limits for queues
Creators: name: Glynn, Peter W.
name: Whitt, Ward
Publisher: name: Columbia University
Year: 1995
Subjects: Queuing theory
Limit theorems (Probability theory)
Industrial engineering
Probabilities
Operations research

description: We consider the maximum waiting time among the first n customers in the GI/G/1 queue. We use strong approximations to prove, under regularity conditions, convergence of the normalized maximum wait to the Gumbel extreme-value distribution when the traffic intensity ρ approaches 1 from below and n approaches infinity at a suitable rate. The normalization depends on the interarrival-time and service-time distributions only through their first two moments, corresponding to the iterated limit in which first ρ approaches 1 and then n approaches infinity. We need n to approach infinity sufficiently fast so that n ( 1 − ρ )2 → ∞. We also need n to approach infinity sufficiently slowly: If the service time has a pth moment for ρ > 2, then it suffices for ( 1 − ρ ) n 1 / p to remain bounded; if the service time has a finite moment generating function, then it suffices to have ( 1 − ρ ) log n → 0. This limit can hold even when the normalized maximum waiting time fails to converge to the Gumbel distribution as n → ∞ for each fixed ρ. Similar limits hold for the queue length process.
Tricholabiodes sudanensis SUAREZ 1967
Creators: name: Madl, Michael
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mutillidae
Tricholabiodes
Tricholabiodes sudanensis

description: Tricholabiodes sudanensis SUÁREZ, 1967
Tricholabiodes sudanensis SUÁREZ, 1967: BAYLISS 1998: 40 (key ♂), 192 (tax., descr. ♂, Djibouti, Obock), 304 (world cat.), 318 (app. 4: tax.), 376-9 (app. 7: tax.), 442-5 (app.: tax.), 461 (app.: tax.), 469 (fig. 4: tax.), 470 (fig. 5: tax.), 471 (fig. 6: tax.), 472 (fig. 7: tax.), 473 (fig. 8: tax.), 474 (fig. 9: tax.), 480 (fig. 22), 507 (fig. 89: map).
* Mutilla (Tricholabiodes) semistriata KLUG, 1829: ANDRÉ 1901: 172-5 (tax., key ♂, descr. ♂, Obock (♂ partim)), pl. 8 (fig. 1).
* Tricholabioides (!) semistriata pedunculatoides n.subsp.: BISCHOFF 1920: 105 (Obock (♂)).
D i s t r i b u t i o n: Djibouti, Obock.
Tricholabiodes sudanensis is recorded from the Afrotropical (Cameroon, Chad, Djibouti, Eritrea, Ethiopia, Mali, Niger, Nigeria, Senegal, Sudan) and Palaearctic (Egypt, Lybia, Oman, Yemen) regions. SUÁREZ (1990: 182) recorded it from Djibouti (French Somalia) in the key to the males, but Djibouti is not listed under distribution of that species (SUÁREZ 1990: 174).
description: Published as part of Madl, Michael, 2018, A preliminary catalogue of the Hymenoptera (Insecta) of the Republic of Djibouti, pp. 907-967 in Linzer biologische Beiträge 50 (2) on page 922, DOI: 10.5281/zenodo.3776452
Discovery of six high-redshift quasars with the Lijiang 2.4m telescope and the Multiple Mirror Telescope
Creators: name: Wu, Xue-Bing
name: Zuo, Wen-Wen
name: Yang, Qian
name: Yi, Wei-Min
name: Yang, Chen-Wei
name: Liu, Wen-Juan
name: Jiang, Peng
name: Shu, Xin-Wen
name: Zhou, Hong-Yan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Quasars with redshifts greater than 4 are rare, and can be used to probe the structure and evolution of the early universe. Here we report the discovery of six new quasars with $i$-band magnitudes brighter than 19.5 and redshifts between 2.4 and 4.6 from the YFOSC spectroscopy of the Lijiang 2.4m telescope in February, 2012. These quasars are in the list of $z>3.6$ quasar candidates selected by using our proposed $J-K/i-Y$ criterion and the photometric redshift estimations from the SDSS optical and UKIDSS near-IR photometric data. Nine candidates were observed by YFOSC, and five among six new quasars were identified as $z>3.6$ quasars. One of the other three objects was identified as a star and the other two were unidentified due to the lower signal-to-noise ratio of their spectra. This is the first time that $z>4$ quasars have been discovered using a telescope in China. Thanks to the Chinese Telescope Access Program (TAP), the redshift of 4.6 for one of these quasars was confirmed by the Multiple Mirror Telescope (MMT) Red Channel spectroscopy. The continuum and emission line properties of these six quasars, as well as their central black hole masses and Eddington ratios, were obtained.
description: 7 pages, 2 figures, published in Research in Astronomy and Astrophysics (RAA) as a letter
title: Assessing and modeling irrigation-induced selenium in the stream-aquifer system of the Lower Arkansas River Valley, Colorado
title: Hydrology days 2006
titleType: AlternativeTitle
title: AGU hydrology days 2006
titleType: AlternativeTitle
Creators: name: Herting, Alexander W.
name: Gates, Timothy K.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2006

description: 2006 annual AGU hydrology days was held at Colorado State University on March 20 - March 22, 2006.
description: Includes bibliographical references.
description: Water quality data on dissolved selenium (Se) have been collected since April 2003 in a study area of the irrigated lower Arkansas River Valley, Colorado. Data have been obtained from 22 surface water locations and from 59 ground-water monitoring wells using low-flow sampling techniques. GIS mapping and statistical analysis were used to characterize the occurrence, severity, and spatial-temporal distribution of Se in the study area. Results indicate dissolved Se concentrations ranging from about 0 to 3760 micrograms per liter (μg/l), with a median of 16.6 (μg/l) in the ground water, including three significant "hot spots". River concentrations range from 4.2 to 23.0 μg/l, often exceeding stream standards for aquatic habitat. Relationships are explored between Se concentrations and more-easily-monitored indicators such as electrical conductivity, sulfate concentration, and nitrate concentration. Statistically significant non-linear relationships exist between Se, sulfate, and nitrate con-centration. Uranium (U) concentrations also are found to have a significant relationship with Se. Since high U concentrations have earlier been linked to marine shale and shale-derived soils in the Valley, the relationship between U and Se concentrations suggests a similar linkage between Se and the presence of shale formations. This relationship will be explored further with additional sampling events to test its validity A model of the selenium transport process in the unconfined aquifer, as affected by irrigation practices, is currently being developed and will be calibrated using field data.
Using different response-time requirements to smooth time-varying demand for service
Creators: name: Whitt, Ward
Publisher: name: Columbia University
Year: 1999
Subjects: Queuing theory
Queuing networks (Data transmission)
Industrial engineering
Probabilities
Operations research

description: Many service systems have demand that varies significantly by time of day, making it costly to provide sufficient capacity to be able to respond very quickly to each service re- quest. Fortunately, however, different service requests often have very different response-time requirements. Some service requests may need immediate response, while others can tolerate substantial delays. Thus it is often possible to smooth demand by partitioning the service requests into separate priority classes according to their response-time requirements. Classes with more stringent performance requirements are given higher priority for service. Lower capacity may be required if lower-priority-class demand can be met during off-peak periods. We show how the priority classes can be defined and the resulting required fixed capacity can be determined, directly accounting for the time-dependent behavior. For this purpose, we ex- ploit relatively simple analytical models, in particular, Mt/G/∞ and deterministic offered-load models. The analysis also provides an estimate of the capacity savings that can be obtained from partitioning time-varying demand into priority classes.
title: Whole body MRI with DWIBS for patients with plasma cell neoplasms: values of ADC depending on bone marrow patterns
Creators: name: Lutsik, Natalia
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Oncologic Imaging
subject: Haematologic
subject: Musculoskeletal bone
subject: Oncology
subject: MR
subject: MR-Diffusion/Perfusion
subject: Imaging sequences
subject: Haematologic diseases
subject: Lymphoma
subject: Prospective
subject: Not applicable

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Whole-body MRI is a promising technique for distinguishing bone marrow infiltration among patients with multiple myeloma, even in the early stages of the disease [1]. There are 5 types of patterns of bone marrow infiltration, which we can...
Trimers in the resonant 2+1 fermionic problem on a narrow Feshbach resonance : Crossover from Efimovian to Hydrogenoid spectrum
Creators: name: Castin, Yvan
name: Tignone, Edoardo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the quantum three-body free space problem of two same-spin-state fermions of mass $m$ interacting with a different particle of mass $M$, on an infinitely narrow Feshbach resonance with infinite s-wave scattering length. This problem is made interesting by the existence of a tunable parameter, the mass ratio $α=m/M$. By a combination of analytical and numerical techniques, we obtain a detailed picture of the spectrum of three-body bound states, within {\sl each} sector of fixed total angular momentum $l$. For $α$ increasing from 0, we find that the trimer states first appear at the $l$-dependent Efimovian threshold $α_c^{(l)}$, where the Efimov exponent $s$ vanishes, and that the {\sl entire} trimer spectrum (starting from the ground trimer state) is geometric for $α$ tending to $α_c^{(l)}$ from above, with a global energy scale that has a finite and non-zero limit. For further increasing values of $α$, the least bound trimer states still form a geometric spectrum, with an energy ratio $\exp(2π/|s|)$ that becomes closer and closer to unity, but the most bound trimer states deviate more and more from that geometric spectrum and eventually form a hydrogenoid spectrum.
description: 26 pages, 8 figures; small improvements
Integrated analysis of primary health care accessibility for aboriginal communities in Alberta
Creators: name: Elikan, Olesya
Publisher: name: University of Calgary
Year: 2010

description: Bibliography: p. 100-106
description: Many pages are in colour.
description: Includes copy of ethics approval. Original copy with original Partial Copyright Licence form.
description: The purpose of this study is to investigate accessibility of primary health care services for Aboriginal people in Alberta in two dimensions: spatial and non-spatial. The spatial dimension is represented by travel time and geographical distance to health services. The non-spatial dimension is based on a number of different economic and socio-demographic factors and emphasizes the importance of non-geographic barriers between consumers and providers of health care. An integrated approach consisting of both quantitative and qualitative methods is employed in order to better assess spatial accessibility; this is measured by travel time from reserves to the nearest health care provider using GIS (Geographic Information Systems) techniques. Finally, a spatial regression model is estimated in order to explore the correlation between population health status and accessibility to health care provision -as measured through the above method-, in conjunction with a set of relevant socio-economic and demographic factors.
Decomposition approximations for time-dependent Markovian queueing networks
Creators: name: Whitt, Ward
Publisher: name: Columbia University
Year: 1999
Subjects: Queuing theory
Queuing networks (Data transmission)
Markov processes
Call centers
Air traffic control--Mathematical models
Industrial engineering
Probabilities
Operations research

description: Motivated by the development of complex telephone call center networks, we present a general framework for decompositions to approximately solve Markovian queueing networks with time-dependent and state-dependent transition rates. The decompositions are based on assuming either full or partial product form for the time-dependent probability vectors at each time. These decompositions reduce the number of time-dependent ordinary differential equations that must be solved. We show how special structure in the transition rates can be exploited to speed up computation. There is extra theoretical support for the decomposition approximation when the steady-state distribution of the time-homogeneous version of the model has product form.
title: Are radiographic measurements of distal radius fractures evidence based?
Creators: name: Jensen, Janni
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Image Quality
subject: Emergency
subject: Musculoskeletal bone
subject: Conventional radiography
subject: Diagnostic procedure
subject: Acute
subject: Trauma
subject: Not applicable

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The distal radius fracture is one of the most common injuries seen in emergency rooms worldwide, accounting for close to 20% of all fractures in the adult population (1). A distal radius fracture is of significant socioeconomic concern particularly...
Workload bounds in fluid models with priorities
Creators: name: Berger, Arthur W.
name: Whitt, Ward
Publisher: name: Columbia University
Year: 2000
Subjects: Queuing theory
Stochastic models
Industrial engineering
Probabilities
Operations research

description: In this paper we establish upper and lower bounds on the steady-state per-class workload distributions in a single-server queue with multiple priority classes. Motivated by communication network applications, the model has constant processing rate and general input processes with stationary increments. The bounds involve corresponding quantities in related models with the first-come first-served discipline. We apply the bounds to support a new notion of effective bandwidths for multi-class systems with priorities. We also apply the lower bound to obtain sufficient conditions for the workload distributions to have heavy tails.
Multi-Perspective Clustering of Process Execution Traces
Creators: name: Jablonski, Stefan
name: Rögliner, Maximilian
name: Schönig, Stefan
name: Wyrtki, Katrin Maria
Publisher: name: Enterprise Modelling and Information Systems Architectures (EMISAJ)
Year: 2019

description: Process mining techniques enable extracting process models from process event logs. Problems can arise if process mining is applied to event logs of flexible processes that are extremely heterogeneous. Here, trace clustering can be used to reduce the complexity of logs. Common techniques use isolated criteria such as activity profiles for clustering. Especially in flexible environments, however, additional data attributes stored in event logs are a source of unused knowledge for trace clustering. In this paper, we present a multi-perspective trace clustering approach that improves the homogeneity of trace subsets. Our approach provides an integrated definition of similarity between traces by defining a distance measure that combines information about executed activities, performing resources, and data values. The evaluation with real-life event logs, one from a hospital and one with traffic fine data, shows that the homogeneity of the resulting clusters can be significantly improved compared to existing techniques.
description: Enterprise Modelling and Information Systems Architectures (EMISAJ), Vol 14 (2019)
NGC 3934: a shell galaxy in a compact galaxy environment
Creators: name: Bettoni, D.
name: Galletta, G.
name: Rampazzo, R.
name: Marino, A.
name: Mazzei, P.
name: Buson, L. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the NGC 3933 poor galaxy association, that contains NGC 3934, which is classified as a polar-ring galaxy. The multi-band photometric analysis of NGC 3934 allows us to investigate the nature of this galaxy and to re-define the NGC 3933 group members with the aim to characterize the group dynamical properties and its evolutionary phase. We imaged the group in the far (FUV,lambda = 1530A) and near (NUV, lambda=2316A) ultraviolet (UV) bands of the Galaxy Evolution Explorer (GALEX). From the deep optical imaging we determined the fine structure of NGC 3934. We measured the recession velocity of PGC 213894 which shows that it belongs to the NGC 3933 group. We derived the spectral energy distribution (SED) from FUV (GALEX) to far-IR emission of the two brightest members of the group. We compared a grid of smooth particle hydrodynamical (SPH) chemo-photometric simulations with the SED and the integrated properties of NGC 3934 and NGC 3933 to devise their possible formation/evolutionary scenarios. The NGC 3933 group has six bright members: a core composed of five galaxies, which have Hickson's compact group characteristics, and a more distant member, PGC 37112. The group velocity dispersion is relatively low (157+-44 km s-1). The projected mass, from the NUV photometry, is ~7$\times$10^12 M\odot with a crossing time of 0.04 Hubble times, suggesting that at least in the center the group is virialized. We do not find evidence that NGC 3934 is a polar-ring galaxy, as suggested by the literature, but find that it is a disk galaxy with a prominent dust-lane structure and a wide type-II shell structure. NGC 3934 is a quite rare example of a shell galaxy in a likely dense galaxy region. The comparison between physically motivated SPH simulations with multi-band integrated photometry suggests that NGC 3934 is the product of a major merger.
description: 15 pages, 12 figures, 5 tables; accepted for publication in A&A
Measuring cardiorespiratory and muscular deconditioning in fatigued and non-fatigued breast cancer survivors
Creators: name: Neil, Sarah Elizabeth
Publisher: name: University of British Columbia
Year: 2011

description: Fatigue is one of the most commonly reported side effects during treatment for breast cancer, and for some individuals can continue for an extended period following treatment completion. Cancer-related fatigue is multi-factorial in nature, and one hypothesized mechanism of both development and persistence of cancer-related fatigue following treatment is cardiorespiratory and muscular deconditioning. The purpose of this study is to compare lactate threshold, VO₂ peak and central vs. peripheral causes of muscular fatigue in breast cancer survivors with persistent cancer-related fatigue (FG) and the control group (CG), breast cancer survivors without persistent cancer-related fatigue following treatment for breast cancer. METHODS: During first testing visit, power output at lactate threshold, lactate threshold as a percentage of peak power output, and absolute and relative VO₂ peak were determined using a graded incremental maximal exercise test on a cycle ergometer. During the second testing visit central and peripheral muscle fatigue following a sustained contraction of the right quadriceps were assessed using the twitch interpolation technique and measurement of voluntary activation, control twitch, maximum voluntary contraction and endurance time. RESULTS: There were no significant differences in age, body weight, or time since completion of treatment between groups. There were no significant differences between groups in power output at lactate threshold (FG 60.7±17.0 vs. CG 73.3±22.2 W, p=0.14), lactate threshold as a percentage of peak power output (FG 46.8±8.6 vs. CG 55.0±14.7%, p=0.11), peak power output (FG132.12±38.2 vs. CG 140.6±5.9 W, p=0.66), absolute VO2 peak (FG 1.51±0.39 vs. CG 1.74±0.38 L/min, p=0.19), or relative VO2 peak (FG 22.4±4.9 vs. CG 23.6±7.1 ml/kg/min, p=0.62). Results did approach significance for power output at lactate threshold (p=0.10) and absolute VO₂ peak (p=0.08) when adjusted for age. Central fatigue was responsible for muscular fatigue in the iv control group, while muscular fatigue in the cancer-related fatigue group was more due to peripheral mechanisms. CONCLUSION: While no statistically significant differences were found between groups, results suggest that deconditioning may play a role in cancer-related fatigue. Future research into the use of exercise training as a tool to improve deconditioning and thereby reduce this proposed aspect of cancer-related fatigue is warranted.
title: Influence of Calibration Curve on Classification of Hepatic Iron Overload using Quantitative Magnetic Resonance Imaging
Creators: name: Kremser, Christian
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Performed at one institution
subject: Diagnostic or prognostic study
subject: Prospective
subject: Tissue characterisation
subject: Technical aspects
subject: MR
subject: Liver
subject: Abdominal Viscera

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: In recent years, magnetic resonance imaging (MRI) has become widely used for the non-invasive evaluation of hepatic iron overload [1,2] and is on the verge to replace liver biopsies in clinical routine. Various MRI-methods and sequences are...
title: Vegetation water use determined with energy balance models coupled with airborne multispectral imagery and weather data
title: Hydrology days 2012
titleType: AlternativeTitle
title: AGU hydrology days 2012
titleType: AlternativeTitle
Creators: name: Chávez, José L.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2012

description: 2012 annual AGU hydrology days was held at Colorado State University on March 21 - March 23, 2012.
description: Includes bibliographical references.
description: Frequent estimates of spatially distributed vegetation water use or evapotranspiration (ET) are essential for managing water resources in irrigated regions and for general hydrologic processes modeling. In this study, two energy balance based algorithms were used to map ET. Both methods require weather data from standard agricultural weather stations. One method was METRIC (Mapping ET at high Resolutions with Internal Calibration), which was originally developed for applications with Landsat images. The second method was a surface aerodynamic temperature-based (SAT) ET method. METRIC and SAT derived ET values were compared to ET values from weighing lysimeters. As part of this experiment, high resolution aircraft imagery (0.5 m pixel size in the visible and near infrared bands and 2 m in the thermal band) were acquired. During the overpasses, ground truth data were collected for surface short-wave reflectance and long-wave thermal emittance, crop parameters, soil heat flux and net radiation. In general, METRIC performed better on well irrigated fields with the presence of large uniform biomass stands while the SAT method resulted with slightly larger errors under similar surface and climatological (including advection) conditions.
Explicit M/G/1 waiting-time distributions for a class of long-tail service-time distributions
Creators: name: Abate, Joseph
name: Whitt, Ward
Publisher: name: Columbia University
Year: 1999
Subjects: Queuing theory
Inverse Gaussian distribution
Industrial engineering
Probabilities
Operations research

description: O. J. Boxma and J. W. Cohen recently obtained an explicit expression for the M/G/1 steady-state waiting-time distribution for a class of service-time distributions with power tails. We extend their explicit representation from a one-parameter family of service-time distributions to a two-parameter family. The complementary cumulative distribution function (ccdf’s) of the service times all have the asymptotic form Fc(t) ∼ αt−3/2 as t → ∞, so that the associated waiting-time ccdf’s have asymptotic form Wc(t) ∼ βt−1/2 as t → ∞. Thus the second moment of the service time and the mean of the waiting time are infinite. Our result here also extends our own earlier explicit expression for the M/G/1 steady-state waiting-time distribution when the service-time distribution is an exponential mixture of inverse Gaussian distributions (EMIG). The EMIG distributions form a two-parameter family with ccdf hav- ing the asymptotic form Fc(t) ∼ αt−3/2e−ηt as t → ∞. We now show that a variant of our previous argument applies when the service-time ccdf is an undamped EMIG, i.e., with ccdf Gc(t) = eηtFc(t) for Fc(t) above, which has the power tail Gc(t) ∼ αt−3/2 as t → ∞. The Boxma-Cohen long-tail service-time distribution is a special case of an undamped EMIG.
Superburst Models for Neutron Stars with Hydrogen and Helium-Rich Atmospheres
Creators: name: Keek, L.
name: Heger, A.
name: Zand, J. J. M. in 't
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Superbursts are rare day-long Type I X-ray bursts due to carbon flashes on accreting neutron stars in low-mass X-ray binaries. They heat the neutron star envelope such that the burning of accreted hydrogen and helium becomes stable, and the common shorter X-ray bursts are quenched. Short bursts reappear only after the envelope cools down. We study multi-zone one-dimensional models of the neutron star envelope, in which we follow carbon burning during the superburst, and we include hydrogen and helium burning in the atmosphere above. We investigate both the case of a solar composition and a helium-rich atmosphere. This allows us to study for the first time a wide variety of thermonuclear burning behavior as well as the transitions between the different regimes in a self-consistent manner. For solar composition, burst quenching ends much sooner than previously expected. This is because of the complex interplay between the 3-alpha, hot CNO, and CNO breakout reactions. Stable burning of hydrogen and helium transitions via marginally stable burning (mHz QPOs) to less energetic bursts with short recurrence times. We find a short-lived bursting mode where weaker and stronger bursts alternate. Eventually the bursting behavior changes back to that of the pre-superburst bursts. Because of the scarcity of observations, this transition has not been directly detected after a superburst. Using the MINBAR burst catalog we identify the shortest upper limit on the quenching time for 4U 1636-536, and derive further constraints on the time scale on which bursts return.
description: 14 pages, 15 figures, 2 tables, accepted for publication in ApJ
title: Effects of dietary habits and age of last delivery on bone mineral density parameters in a Hungarian female population
Creators: name: Bartha, Éva
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Musculoskeletal
subject: Bones
subject: Musculoskeletal spine
subject: Trauma
subject: Absorptiometry / Bone densitometry
subject: Screening
subject: Blood
subject: Demineralisation-Bone
subject: Osteoporosis
subject: Prospective
subject: Diagnostic or prognostic study
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: In our study, we investigated the effect of dietary and drinking habits, the number of birth and the age of last delivery on bone mineral density (BMD), serum 25-hydroxivitamin-D (vit D) and beta-crosslaps level in a South Hungarian female...
The potential of discs from a "mean Green function"
Creators: name: Trova, A.
name: Huré, J. M.
name: Hersant, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: By using various properties of the complete elliptic integrals, we have derived an alternative expression for the gravitational potential of axially symmetric bodies, which is free of singular kernel in contrast with the classical form. This is mainly a radial integral of the local surface density weighted by a regular "mean Green function" which depends explicitly on the body's vertical thickness. Rigorously, this result stands for a wide variety of configurations, as soon as the density structure is vertically homogeneous. Nevertheless, the sensitivity to vertical stratification | the Gaussian profile has been considered | appears weak provided that the surface density is conserved. For bodies with small aspect ratio (i.e. geometrically thin discs), a first-order Taylor expansion furnishes an excellent approximation for this mean Green function, the absolute error being of the fourth order in the aspect ratio. This formula is therefore well suited to studying the structure of self-gravitating discs and rings in the spirit of the "standard model of thin discs" where the vertical structure is often ignored, but it remains accurate for discs and tori of finite thickness. This approximation which perfectly saves the properties of Newton's law everywhere (in particular at large separations), is also very useful for dynamical studies where the body is just a source of gravity acting on external test particles.
description: Accepted for publication in MNRAS, 11 pages
Job Satisfaction: The Effect of Capitalist and Corporatist Institutions
Creators: name: Phelps, Edmund S.
name: Zoega, Gylfi
Publisher: name: Columbia University
Year: 2012
Subjects: Economics
Capitalism--Social aspects
Corporate state
Job satisfaction
Quality of work life

description: Economic activity yields benefits in the form of output and consumption. In addition, there is a non-material dimension to participating in an innovative economy since much of what is most valued about participating in such an economy is the challenge and experience it offers rather than just the material goods and services produced. The question addressed in this paper is whether capitalist economies are more rewarding in non-material terms than corporatist economies since the latter may be less innovative due to the corporatist state’s intervention in the allocation of the factors of production and the distribution of income. In particular, we explore whether reported job satisfaction tends to be higher in the capitalist economies and lower in the corporatist economies.
title: Development of Automatized Quantitative Assessment Method for Image Evaluation in Quality Control using Mobile Fluoroscopic Standard Phantom.
Creators: name: jung, chul hoon
Publisher: name: European Congress of Radiology
Year: 2020
Subjects: subject: Information Technology
subject: Artificial Intelligence
subject: Computer applications
subject: Fluoroscopy
subject: Acceptance testing
subject: Equipment
subject: Quality assurance
subject: Not applicable
subject: Experimental
subject: Performed at one institution

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: The purpose of this study is to quantify the Spatial Resolution (SR) and Contrast Resolution (CR) items that perform a qualitative assessment for quality control using the standard phantom of the mobile fluoroscopy (C-Arm) [1]. To this end, the...
CLARITY D5.1 Exploitation Requirements and Innovation Design
Creators: name: Dihé, Pascal
Publisher: name: Zenodo
Year: 2017
Subjects: H2020
Exploitation
Climate Services
European Market for Climate Services
Innovation Design
Requirements

description: This report is the first deliverable of Task 5.1 “Exploitation Requirements” of the CLARITY project, funded by the EU’s Horizon 2020 Programme under Grant Agreement number 730355. Task 5.1 intends to make sure that the project partners can recognize realistic exploitation and innovation aspects during the co-design and implementation of CLARITY Climate Service right from the start of the project, when no detailed and focused market study and business model are available yet.

The work foreseen in this task is performed in two stages. The first stage concentrates on the technical perspective and the impact of potential Exploitation Requirements identified on basis of a general and broad assessment of Climate Service market conditions, needs and gaps. Thereby, especially the early results of the EU-MACS (Project ID: 730500. Funded under: H2020-EU.3.5.1.), reported in EU-MACS deliverables D1.1 “Review and Analysis of CS Market Condition”, D1.2 “Existing Resourcing and Quality Assurance of Current Climate Services” and D1.3 “Analysis of existing Data Infrastructures for Climate Services” are taken into account. In a second stage, the results of CLARITY’s market analysis and business model (D5.3 “Exploitation and business plan v1”) are used to re-evaluate and/or validate the findings of the initial Exploitation Requirements assessment and to concretize innovative aspects of CLARITY products and service.

This document defines CLARITY’s general approach towards Exploitation Requirements and Innovation Design and presents the results of the first stage of Task 5.1, that is, Exploitation Requirements elicitation and assessment. It describes the consolidated Exploitation Requirements, discusses the potential impact and implications of Exploitation Requirements on the Climate Services co-design process, product and service implementation and the CSIS architecture and formulates concrete technical recommendations for WP1 “Co-Creation” and WP4 “Technology Support”.
Fully non-linear equivalence of delta N and covariant formalisms
Creators: name: Suyama, Teruaki
name: Watanabe, Yuki
name: Yamaguchi, Masahide
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explicitly show the fully non-linear equivalence of the $δ$N and the covariant formalisms for the superhorizon curvature perturbations, which enables us to safely evaluate the non-Gaussian quantities of the curvature perturbation in either formalism. We also discuss isocurvature perturbations in the covariant formalism and clarify the relation between the fully non-linear evolution of the curvature covector and that of the curvature perturbation for multiple interacting fluids.
description: 11 pages, minor changes, version accepted by PRD
Career Choice and Economic Innovation: A Comparison Between China, Germany and the USA
Creators: name: Bojilov, Raicho
name: Phelps, Edmund S.
Publisher: name: Columbia University
Year: 2013
Subjects: Economics
Entrepreneurship
Entrepreneurship--Government policy
Fiscal policy

description: This paper investigates some individual career choices in China, Germany and the US that have an impact on economic innovation. It presents evidence that public administration in China attracts highly educated and talented people, while those who create firms tend to have low educational attainment and do not stand out in terms of talent. In contrast, Americans of high ability tend to go in the private sector either as employees or as entrepreneurs. While education generates attractive alternatives to creating one's own firm, educated American entrepreneurs are highly successful, suggesting that they engage in frontier innovation. We then discuss some policy recommendations that may help increase the attractiveness of creating one’s own firm in China.
title: Application of the Cowell Index to monthly streamflow analysis
title: Hydrology days 2012
titleType: AlternativeTitle
title: AGU hydrology days 2012
titleType: AlternativeTitle
Creators: name: Milhous, Robert T.
name: Colorado State University, Publisher
Publisher: name: Mountain Scholar
Year: 2012

description: 2012 annual AGU hydrology days was held at Colorado State University on March 21 - March 23, 2012.
description: Includes bibliographical references.
description: Temporal patterns of streamflows are important in the fluctuating physical and biological environment of rivers. Colwell proposed two measures of predictability: constancy, and contingency. The measures are based on the mathematics of information theory. The Colwell Index, predictability, is the sum of the two measures. A consistent method of calculating the Colwell Index for monthly streamflows data was developed and is 1) use monthly discharge time steps, 2) uses 12 discharge classes with the 12th class being all monthly discharges larger than the 11th class boundary, 3) use the equation B(i) = 0.015625 (2)α Qm where α = i-1 from i = 1, 2, ,11 and Qm is a reference discharge to define the discharge class boundaries, 4) use the median monthly discharge as the reference discharge. The Colwell Indices for eight rivers are presented. The rivers were selected because they show the variation in the index that is possible. The eight rivers represent a wide range of watershed types and climates. The range of the Colwell Index for the eight rivers was from 0.21 to 0.84, of consistency 0.10-0.46 and of contingency 0.09-0.44. The contingency is a measure of the seasonal predictability of streamflows. The Gunnison River in Colorado has three periods with difference in the water management. The Cowell Indices was calculated for each of the periods. The consistence increased in all three periods but the contingency was reduced. The principle value of the Colwell Index is in making comparisons, between rivers and water management actions, of the uncertainty of the variable stream environments. This ability to use one index to make a comparison of uncertainty may make the Colwell Index a valuable tool in the analysis of environmental flow needs.