cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Temporal and Spatial Patterns of Denitrification in a Natural and in a Constructed Salt Marsh
Creators: name: Thompson, Suzanne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Marsh creation for mitigation of wetland loss has come into increasing use, but little research has examined nutrient cycling or other critical wetland habitat functions in constructed marshes. This study compares spatial and temporal patterns of nitrogen cycling via the nitrification-denitrification pathway in a natural and in a restored salt marsh. Sedimentary denitrification rates were approximately 44 times greater in a natural marsh relative to an adjacent transplanted marsh, while nitrification rates were similar at both sites. The difference in denitrification rates is attributed to oxygen inhibition at low tide and tidal flushing of porewater nutrients in the coarse sediments of the restored marsh. Denitrification was positively correlated with nitrification throughout the year in the natural marsh with a seasonal fall peak in denitrification corresponding to a maximum in porewater ammonium concentration. A weak correlation existed between the two processes in the restored marsh where nitrification rates exceeded denitrification by a factor of 20. Transplanted marsh denitrification rates exhibited an early spring peak corresponding to elevated porewater ammonia concentrations. Enhanced denitrification activity was detected in sediment adjacent to Uca pugilator burrows and in sediment associated with the root-rhizome system of Spartina alterniflora in the restored marsh only. These results demonstrate functional differences in nitrogen dynamics of a young restored marsh relative to a mature salt marsh system.
title: Direct measurement of patient’s entrance skin dose during pediatric cardiac catheterization
Creators: name: Sun, Lue
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Interventional vascular
subject: Radioprotection / Radiation dose
subject: Paediatric
subject: Catheter arteriography
subject: Dosimetry

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The incidence of congenital cardiac disease was approximately 0.8% [1]. In recent years, the patient survival was improved because the advance in treatment. Resent year, the numbers of cardiac catheterization procedures were increasing in children...
Bifurcation analysis of the behavior of partially wetting liquids on a rotating cylinder
Creators: name: Lin, Te-Sheng
name: Rogers, Steven
name: Tseluiko, Dmitri
name: Thiele, Uwe
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We discuss the behavior of partially wetting liquids on a rotating cylinder using a model that takes into account the effects of gravity, viscosity, rotation, surface tension and wettability. Such a system can be considered as a prototype for many other systems where the interplay of spatial heterogeneity and a lateral driving force in the proximity of a first- or second-order phase transition results in intricate behavior. So does a partially wetting drop on a rotating cylinder undergo a depinning transition as the rotation speed is increased, whereas for ideally wetting liquids the behavior \bfuwe{only changes quantitatively. We analyze the bifurcations that occur when the rotation speed is increased for several values of the equilibrium contact angle of the partially wetting liquids. This allows us to discuss how the entire bifurcation structure and the flow behavior it encodes changes with changing wettability. We employ various numerical continuation techniques that allow us to track stable/unstable steady and time-periodic film and drop thickness profiles. We support our findings by time-dependent numerical simulations and asymptotic analyses of steady and time-periodic profiles for large rotation numbers.
Polarny Jedwabny Szlak jako forma zaangażowania Chin w Arktyce
Creators: name: Sadurski, Leszek Krzysztof
Publisher: name: Zenodo
Year: 2023
Subjects: Arktyka, Chiny, Polarny Jedwabny Szlak

description: Polarny Jedwabny Szlak jako forma zaangażowania Chin w Arktyce -prezentacja została przygotowana w ramach badań finansowanych przez Narodowe Centrum Nauki w ramach grantu pt.: Adaptacja regionalnego kompleksu bezpieczeństwa w obliczu zmian klimatu na przykładzie Arktyki, o numerze: UMO-2019/35/N/HS5/00578. Prezentacja została wygłoszona podczas wystąpienia na konferencji IX Międzynarodowy Kongres Azjatycki w Toruniu, w 2022 r.
Reducing bovine leukemia virus prevalence on a large midwestern dairy farm by using lymphocyte counts, ELISA antibody testing, and proviral load
Creators: name: Taxis, Tasia M.
name: DeJong, Tawnie N.
name: Swenson, Cheryl L.
name: Sporer, Kelly R. B.
name: Droscha, Casey
name: Niles, Don
name: Bartlett, Paul C.
Publisher: name: The Bovine Practitioner
Year: 2020
Subjects: BLV
ELISA
lameness
lymphocyte count
mastitis

description: Cattle infected with BLV have disrupted immune systems, associated with reduced milk production, shortened lifespan, and predisposition to lymphoma. The objective of this exploratory case study was to develop a disease control testing and management protocol to reduce the prevalence of bovine leukemia virus (BLV) within a large commercial dairy herd. Three diagnostic tests were available: lymphocyte count (LC), ELISA for BLV antibodies, and proviral load (PVL) as determined by quantitative polymerase chain reaction (qPCR). Both testing and management protocols evolved over time as the BLV prevalence decreased and we learned how to reduce labor and unnecessary or redundant diagnostic testing. Test results were used to inform culling and pen assignments for cows most likely to transmit BLV or develop disease. Significant decreases in the percentage of cows with LC≥10.0x103/μL (4.22% to 1.04%) and PVL>0.5 were observed for all lactations during the 4 quarters of intervention. By October 30, 2020, 6 of ~3,000 cows remained with a detectable PVL. Additionally, it was found that LC and PVL were associated with clinical lameness, but not with clinical mastitis.
description: The Bovine Practitioner, Vol. 54, No. 2 (2020)
title: Vertebroplasty as treatment of primary or secondary neoplastic lesion at cervical level.
Creators: name: Tecame, Mario
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Interventional non-vascular
subject: CT
subject: MR
subject: Vertebroplasty
subject: Cancer
subject: Cysts
subject: Metastases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To assess the validity of the treatment with vertebroplasty ( VP ), in terms of pain-relief and vertebral stabilization, in patients affected by primary or secondary neoplastic lesions at cervical...
The Release of Particles from GAC Filter-Adsorbers and Their Effect on Disinfection
Creators: name: Mallon, Kathryn L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1990

description: Granular Activated Carbon (GAC) filter-adsorbers can be an effective process for the removal of organic compounds in the treatment of drinking water. They have also been shown to provide a favorable environment for microbial activity. A consequence of the attachment of microorganisms to the GAC surface is the release of particle-attached organisms into the product water of the filter-adsorbers. Previous research has shown that attachment of organisms to surfaces can provide a mode for microbial survival during disinfection. A pilot plant consisting of three GAC filter-adsorbers was constructed to examine the impact of GAC filtration, and its associated microbial growth, on product water quality. Of primary interest was the disinfection efficiency of microorganisms attached to particles released from the filter-adsorbers. The results indicated that the GAC filter-adsorbers produced extremely high quality water as measured by turbidity and gravimetric analysis. The filter-adsorbers shed a significant concentration of microorganisms (10,000 HPC/mL); however only a very small percentage of these organisms were found to be attached to particles (0.01 to 0.05%). In addition, organisms attached to particles were found to be effectively disinfected at chlorine dosages common to water treatment plants. Resistance to disinfection of attached organisms was only noticed in experiments conducted in solutions of particle concentrations unrealisitic of an actual drinking water treatment plant (> 1 mg/L particles).
Eilenberg-Watts Theorem for 2-categories and quasi-monoidal structures for module categories over bialgebroid categories
Creators: name: Femić, Bojana
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We prove Eilenberg-Watts Theorem for 2-categories of the representation categories $\C\x\Mod$ of finite tensor categories $\C$. For a consequence we obtain that any autoequivalence of $\C\x\Mod$ is given by tensoring with a representative of some class in the Brauer-Picard group $\BrPic(\C)$. We introduce bialgebroid categories over $\C$ and a cohomology over a symmetric bialgebroid category. This cohomology turns out to be a generalization of the one we developed in a previous paper and moreover, an analogous Villamayor-Zelinsky sequence exists in this setting. In this context, for a symmetric bialgebroid category $\A$, we interpret the middle cohomology group appearing in the third level of the latter sequence. We obtain a group of quasi-monoidal structures on the representation category $\A\x\Mod$.
Method of lines solution of Richards' equation with spatially and temporally adaptive discretization techniques
Creators: name: Abhishek, Chandra
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Efficient, robust simulation of groundwater flow in the unsaturated zone remains difficult for problems characterized by sharp fronts in both space and time. Employing uniform spatial and temporal discretizations for the numerical solution of these problems can lead to inefficient and expensive simulations. In this work, we solve Richards' equation using the method of lines with both temporally and spatially adaptive approximations. The time discretization adapts both the approximation order and step-size based on formal error control to satisfy user-specified error tolerances. For the spatial discretization, we use h-refinement with a Lagrangian prediction of the fluid front location to determine when and where to refine. We evaluate our method in comparison with uniform spatial discretizations for several test problems. The numerical results demonstrate that this method provides a robust and efficient alternative to standard approaches for simulating variably saturated flow.
title: Core-needle biopsy of lung nodes, accuracy and complications
Creators: name: Jiménez, José Maria
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Thorax
subject: Lung
subject: Interventional non-vascular
subject: Fluoroscopy
subject: CT-High Resolution
subject: Percutaneous
subject: Biopsy
subject: Diagnostic procedure
subject: Complications
subject: Cancer
subject: Image verification
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate the diagnostic accuracy and the complication rate of CT-guided percutaneous lung biopsy of pulmonary lesions using automated coaxial core-needles in our...
Time resolution of time-of-flight detector based on multiple scintillation counters readout by SiPMs
Creators: name: Cattaneo, P. W.
name: De Gerone, M.
name: Gatti, F.
name: Nishimura, M.
name: Ootani, W.
name: Rossella, M.
name: Shirabe, S.
name: Uchiyama, Y.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A new timing detector measuring ~50 MeV/c positrons is under development for the MEG II experiment, aiming at a time resolution $σ_t \sim 30~\mathrm{ps}$. The resolution is expected to be achieved by measuring each positron time with multiple counters made of plastic scintillator readout by silicon photomultipliers (SiPMs). The purpose of this work is to demonstrate the time resolution for ~50 MeV/c positrons using prototype counters. Counters with dimensions of $90\times 40\times 5~\mathrm{mm}^3$ readout by six SiPMs (three on each $40\times 5~\mathrm{mm}^2$ plane) were built with SiPMs from Hamamatsu Photonics and AdvanSiD and tested in a positron beam at the DA$Φ$NE Beam Test Facility. The time resolution was found to improve nearly as the square root of the number of counter hits. A time resolution $σ_t=26.2\pm1.3~\mathrm{ps}$ was obtained with eight counters with Hamamatsu SiPMs. These results suggest that the design resolution is achievable in the MEG II experiment.
description: 12 pages, 18 figures. Published in NIM A
Beach Sand Analysis for Indicators of Microbial Contamination
Creators: name: Prevette, Emylee Brooke
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Traditional beach monitoring has focused on water quality, with little attention paid to contamination or health risks associated with beach sand. Recent research has reported that fecal indicator bacteria, as well as human pathogens can be found in beach sand and may constitute a risk to human health. This study explored the use of alternative indicators in beach sand and also evaluated a rapid technique for the detection of coliphages. Indicators evaluated included male-specific and somatic coliphages as viral indicators of fecal contamination, along with Staphylococcus aureus, a potential opportunistic pathogen. Sand was collected from two beaches during the summer of 2009. Study sites included Boqueron Beach in Puerto Rico, a representative subtropical beach; and Surfside Beach in South Carolina, a representative beach impacted by non-point source pollution. Laboratory analysis of the sand for viral indicators yielded compelling results: Coliphages were detected in 25 of 81 samples (31%) from Boqueron Beach, and in 83 of 87 samples (95%) from Surfside Beach. Somatic coliphages were detected more frequently than male-specific coliphages, with 60% and 29% of samples testing positive, respectively. The rapid 5 hour detection technique appears better suited to detection of somatic coliphages than male-specific coliphages. Somatic coliphages were detected in 52% of samples after a 5 hour enrichment and in 56% of samples after 24 hours. Male-specific coliphages were only detected in 15% of samples after a 5 hour enrichment, with 28% of samples positive after 24 hours. Out of 156 sand samples analyzed for S. aureus using selective media, 116 (74%) were positive for growth with colony morphologies characteristic of S. aureus. Presumptive S. aureus strains were archived, along with strains showing variable colony morphologies, for further characterization. These isolates will be analyzed to confirm species identity and have been screened to detect the possible presence of methicillin-resistant S. aureus (MRSA). Overall, this study will help identify appropriate measures to evaluate public health risks associated with beach sand, which may include the use of alternative indicators.
title: CT-guided transthoracic needle biopsy induced complications – how to cut back?
Creators: name: Boskovic, Tatjana
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Complications
subject: Biopsy
subject: Percutaneous
subject: CT
subject: Lung
subject: Interventional non-vascular
subject: Haemorrhage

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: CT-guided transthoracic needle biopsy is integral in the diagnosis and treatment of many thoracic diseases, and is an important alternative to more invasive surgical procedures. Although it is a widely accepted procedure with relatively few...
Ideas, Policies and Practices: Tracing the Evolution of Elementary Education Reform in India since 1975s
Creators: name: Admin, RISE
name: Singh, Priyadarshini
Publisher: name: University of Oxford
Year: 2023
Subjects: Education systems not elsewhere classified
Other education not elsewhere classified
Political economy and social change

description: This study examines four key reform policies and programs of the Indian education system: DPEP (1994), SSA (2000), RTE (2010) and NEP (2020) to shed light on the histories of current reform options and find out if they will indeed meet the call of the times to address the learning crisis.
Moduli Stabilisation with Nilpotent Goldstino: Vacuum Structure and SUSY Breaking
Creators: name: Aparicio, Luis
name: Quevedo, Fernando
name: Valandro, Roberto
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the effective field theory of KKLT and LVS moduli stabilisation scenarios coupled to an anti-D3-brane at the tip of a warped throat. We describe the presence of the anti-brane in terms of a nilpotent goldstino superfield in a supersymmetric effective field theory. The introduction of this superfield produces a term that can lead to a de Sitter minimum. We fix the Kaehler moduli dependence of the nilpotent field couplings by matching this term with the anti-D3-brane uplifting contribution. The main result of this paper is the computation, within this EFT, of the soft supersymmetry breaking terms in both KKLT and LVS for matter living on D3-brane (leaving the D7-brane analysis to an appendix). A handful of distinct phenomenological scenarios emerge that could have low energy implications, most of them having a split spectrum of soft masses. Some cosmological and phenomenological properties of these models are discussed. We also check that the attraction between the D3-brane and the anti-D3-brane does not affect the leading contribution to the soft masses and does not destabilise the system.
description: 26+14 pages, 1 figure; references and clarifications added, typos fixed
Optical quantum memory for ultrafast photons using molecular alignment
Creators: name: Thekkadath, G. S.
name: Heshami, K.
name: England, D. G.
name: Bustard, P. J.
name: Sussman, B. J.
name: Spanner, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The absorption of broadband photons in atomic ensembles requires either an effective broadening of the atomic transition linewidth, or an off-resonance Raman interaction. Here we propose a scheme for a quantum memory capable of storing and retrieving ultrafast photons in an ensemble of two-level atoms by using a propagation medium with a time-dependent refractive index generated from aligning an ensemble of gas-phase diatomic molecules. The refractive index dynamics generates an effective longitudinal inhomogeneous broadening of the two-level transition. We numerically demonstrate this scheme for storage and retrieval of a weak pulse as short as 50 fs, with a storage time of up to 20 ps. With additional optical control of the molecular alignment dynamics, the storage time can be extended about one nanosecond leading to time-bandwidth products of order $10^4$. This scheme could in principle be achieved using either a hollow-core fiber or a high-pressure gas cell, in a gaseous host medium comprised of diatomic molecules and a two-level atomic vapor at room temperature.
description: 7 pages, 6 figures. Fixed typos
title: Multi-Backend Zonal Statistics Execution with Raven
Creators: name: Dusella, Gereon
name: Gavriilidis, Haralampos
name: Nuhu, Laert
name: Markl, Volker
name: Tzirita Zacharatou, Eleni
Publisher: name: ACM
Year: 2024
Subjects: subject: 000 Informatik, Informationswissenschaft, allgemeine Werke::000 Informatik, Wissen, Systeme::004 Datenverarbeitung; Informatik
subject: unified spatial data analytics;
subject: zonal statistics
subject: parcel-based classification
subject: spatial join
subject: satellite imagery
subject: big spatial data

description: The recent explosion in the number and size of spatial remote sensing datasets from satellite missions creates new opportunities for data-driven approaches in domains such as climate change monitoring and disaster management. These approaches typically involve a feature engineering step that summarizes remote sensing pixel data located within zones of interest defined by another spatial dataset, an operation called zonal statistics. Although several spatial systems support zonal statistics operations, they differ significantly in terms of interfaces, architectures, and algorithms, making it hard for users to select the best system for a specific workload. To address this limitation, we propose Raven, a zonal statistics framework that provides users with a unified interface across multiple execution backends, while facilitating easy benchmarking and comparisons across systems. This demonstration showcases Raven 's multi-backend execution environment, domain-specific declarative language, optimization techniques, and benchmarking capabilities.
Search for a low-mass pseudoscalar Higgs boson produced in association with a b b-bar pair in pp collisions at sqrt(s) = 8 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search is reported for a light pseudoscalar Higgs boson decaying to a pair of tau leptons, produced in association with a b b-bar pair, in the context of two-Higgs-doublet models. The results are based on pp collision data at a centre-of-mass energy of 8 TeV collected by the CMS experiment at the LHC and corresponding to an integrated luminosity of 19.7 inverse femtobarns. Pseudoscalar boson masses between 25 and 80 GeV are probed. No evidence for a pseudoscalar boson is found and upper limits are set on the production cross section times branching fraction to tau pairs between 7 and 39 pb at the 95% confidence level. This excludes pseudoscalar A bosons with masses between 25 and 80 GeV, with standard model-like Higgs boson negative couplings to down-type fermions, produced in association with b b-bar pairs, in Type-II, two-Higgs-doublet models.
description: Replaced with published version. Put in journal reference and DOI. All figures and tables, including additional figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-14-033/index.html
title: Safety and effectiveness of UFE in fibroids larger than 10cm
Creators: name: Bérczi, Viktor
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Interventional vascular
subject: Catheter arteriography
subject: Embolisation
subject: Obstetrics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Uterine leiomyomas (fiboid, fibromyoma) are the most common benign tumors in women in the age over 35. Most of the women with uterine leiomyomas are asymptomatic. For symptomatic cases (20-25%), hysterectomy remains the most common surgical...
A Comparison of Compliance with Occupational Exposure Limits and the Risk of Disease
Creators: name: Tornero-Velez, Rogelio
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: A statistical model was used to investigate the relation between compliance with an occupational exposure limit (OEL) for chronic or delayed toxicants, and risk of disease as measured by the probability that an individual's long-term mean exposure concentration exceeds the OEL. The model, which assumes the relevant distributions to be lognormal, relates compliance to risk solely by the total variance and its partitioning into within-worker and between-worker variance components. A database of approximately 5000 chemical exposures has been used to validate the model. When the assumptions of the model are met, it is demonstrated that regulatory compliance with an OEL is not always protective of workers' health. On the basis of these results, when dealing with chronic toxicants, a recommendation is made to adopt testing procedures which focus on a randomly selected worker's long-term mean exposure.
title: Alcoholization under sonographic guidance in Morton’s neuroma: follow up in 250 cases
Creators: name: Perini, Luciano
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Sclerosis
subject: Ultrasound
subject: Neuroradiology peripheral nerve
subject: Musculoskeletal soft tissue
subject: Interventional non-vascular
subject: Motility

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: INTRODUCTION Morton's Neuroma (MN) ( Fig. 1 and Fig. 2 ) is an enlargement of the common digital nerve due to a perineural inflammatory process, most frequently involving the second and third branch ( Fig. 3 and Fig. 4 ), and it is histologically...
A Systematic Review of Works in Quantitative Ethnography
Creators: name: Zörgő, Szilvia
name: Porter, Clare
name: Peters, Gjalt - Jorn
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Methodology
subject: Quantitative Ethnography
subject: Systematic review

description: Data collection on methodological choices authors have made while using Quantitative Ethnographic tools
Political Economy Research to Improve Systems of Education: Guiding Principles for the RISE Programme’s Political Economy Team (Adoption) Research Projects
Creators: name: Admin, RISE
name: Gershberg, Alec
Publisher: name: University of Oxford
Year: 2023
Subjects: Education systems not elsewhere classified
Other education not elsewhere classified
Political economy and social change

description: This insight note presents guiding principles for the RISE Programme's Political Economy Team (Adoption) research project and reflects on the importance of having a political economy team.
Localization and migration of phase singularities in the edge-diffracted optical-vortex beams
Creators: name: Bekshaev, Aleksandr
name: Chernykh, Aleksey
name: Khoroshun, Anna
name: Mikhaylovskaya, Lidiya
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: When a circularly-symmetric light beam with optical vortex (OV) diffracts at an opaque screen with the sharp edge, the OV core is displaced from the beam axis and, in case of the m-charged incident OV, decomposed into |m| single-charged ones. By means of numerical simulations and based on examples of incident beams with topological charges |m| =1, 2, 3 we show that, while the screen edge monotonously advances towards the beam axis, the OVs in the diffracted beam cross section move away from the incident beam axis along spiral-like trajectories. The trajectories contain fine structure details that reflect the nature and peculiar spatial configuration of the diffracting beam. For the Kummer beams' diffraction, the trajectories contain self-crossings and regions of "backward" rotation (loops); in case of Laguerre-Gaussian beams, the trajectories are smoother. The numerical results are supported by analytical approximations and conform with experiment The general shape of the trajectories and their local behavior show high sensitivity to the diffraction conditions (spatial structure of the diffracting beam, its disposition with respect to the screen edge, etc.), which can be used in diverse metrological applications.
description: 16 pages, 5 figures; published in the special issue on Singular Optics and Topological Photonics. A post-publication note (2 pages, 2 figures) is added
Analysis and Local Estimation of Spatial Data Under the Intrinsic Hypothesis of Spatial Random Fields
Creators: name: Thesing, Glenn A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: The intrinsic hypothesis of random fields is applied in the analysis of spatially distributed point-value data. In particular, the intrinsic hypothesis is coupled with a kriging point estimator to study the local behavior of non-homogeneous natural processes over two-dimensional space and to produce maps of degree of spatial trend, spatial correlation features, and point estimates. An automated computer algorithm is implemented to conduct the analysis at a local scale. A rectangular grid is assigned throughout the data domain. Trend assessment, covariance modeling, and estimation are conducted at each grid node using local subsets of data. The algorithm is applied to a set of soil moisture content measurements. Sensitivity analyses are conducted and indicate estimation accuracy is dependent on the size of the local subset and the covariance model used.
Lensing as a Probe of Early Universe: from CMB to Galaxies
Creators: name: Hassani, Farbod
name: Baghram, Shant
name: Firouzjahi, Hassan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Cosmic Microwave Background (CMB) radiation lensing is a promising tool to study the physics of early universe. In this work we probe the imprints of deviations from isotropy and scale invariance of primordial curvature perturbation power spectrum on CMB lensing potential and convergence. Specifically, we consider a scale-dependent hemispherical asymmetry in primordial power spectrum. We show that the CMB lensing potential and convergence and also the cross-correlation of the CMB lensing and late time galaxy convergence can probe the amplitude and the scale dependence of the dipole modulation. As another example, we consider a primordial power spectrum with local feature. We show that the CMB lensing and the cross-correlation of the CMB lensing and galaxy lensing can probe the amplitude and the shape of the local feature. We show that the cross correlation of CMB lensing convergence and galaxy lensing is capable to probe the effects of local features in power spectrum on smaller scales than the CMB lensing. Finally we showed that the current data can constrain the amplitude and moment dependence of dipole asymmetry.
description: 18 pages, 22 figures, published in JCAP, Final Version
title: C-arm CT venography significantly improves the technical success of adrenal vein sampling (AVS)
Creators: name: Georgiades, Christos
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Interventional vascular
subject: Catheter venography
subject: Sampling
subject: Hypertension

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Primary hyperaldosteronism is a common curable (1) cause of hypertension with estimates showing is afflicts up to 15% of hypertensive patients (2, 3, 4, 5). Such patients are - mostly inadequately - treated with a median of 5 antihypertensive...
An Analysis of The Orange Water and Sewer Authority Rate Structure
Creators: name: Oakley, Monica M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: This Study contains a description of OWASA's customer payments and fees which constitute the current rate structure. Costs associated with individual charges are compared with corresponding revenues to assess the adequacy of current rates. The method of cost allocation developed for current rates is used to determine projected costs associated with three rate level change alternatives. Revenue/cost comparisons for projected rates are used with other indicating parameters to assess the adequacy of alternatives.
The Weyl realizations of Lie algebras and left-right duality
Creators: name: Meljanac, Stjepan
name: Kresic-Juric, Sasa
name: Martinic, Tea
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 16S30, 17B35, 20G45, 81R60

description: We investigate dual realizations of non--commutative spaces of Lie algebra type in terms of formal power series in the Weyl algebra. To each realization of a Lie algebra $\g$ we associate a star--product on the symmetric algebra $S(\g)$ and an ordering on the enveloping algebra $U(\g)$. Dual realizations of $\g$ are defined in terms of left--right duality of the star--products on $S(\g)$. It is shown that the dual realizations are related to an extension problem for $\g$ by shift operators whose action on $U(\g)$ describes left and right shift of the generators of $U(\g)$ in a given monomial. Using properties of the extended algebra, in the Weyl symmetric ordering we derive closed form expressions for the dual realizations of $\g$ in terms of two generating functions for the Bernoulli numbers. The theory is illustrated by considering the $κ$--deformed space.
description: Revised version
The Foreground Bias: Initial Scene Representations across the Depth Plane
Creators: name: Castelhano, Monica
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: When you walk into a large room, you perceive visual information that is both close to you in depth and farther in the background. Here, we investigated how initial scene representations are affected by information across depth. We examined the role of background and foreground information on scene gist by using Chimera scenes (images with foreground and background from different scene categories). Across three experiments, we found a Foreground Bias in which foreground information initially had a strong influence on the interpretation of the scene. This bias persisted when the initial fixation position was on the scene background and when the task was changed to emphasize scene information. We conclude that the Foreground Bias arises from initial processing of scenes for understanding and suggests that scene information closer to the observer is initially prioritized. We discuss the implications for theories of scene and depth perception.
title: Comparison of irinotecan loaded beads in a pig model
Creators: name: Gnutzmann, Daniel
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Interventional non-vascular
subject: Interventional vascular
subject: Liver
subject: Catheter arteriography
subject: Chemoembolisation
subject: Metastases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Irinotecan is an effective chemotherapeutic agent used in the treatment of different primary and secondary tumors. When released intraarterially by drug-eluting beads, it can be used for local therapy of hepatic metastases caused by colorectal...
Cayley graphs of diameter two with order greater than 0.684 of the Moore bound for any degree
Creators: name: Abas, Marcel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: It is known that the number of vertices of a graph of diameter two cannot exceed $d^2+1$. In this contribution we give a new lower bound for orders of Cayley graphs of diameter two in the form $C(d,2)>0.684d^2$ valid for all degrees $d\geq 360756$. The result is a significant improvement of currently known results on the orders of Cayley graphs of diameter two.
description: 14 pages, 2 tables, Published in European Journal of Combinatorics. Free access to the article valid until July 9, 2016: http://authors.elsevier.com/a/1T3zuiVNjvDA6
MPEC 2024-C13 : 2024 BV4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 BV4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Additional file 1 of Characterization of a GDS(L)-like hydrolase from Pleurotus sapidus with an unusual SGNH motif
Creators: name: Fingerhut, Miriam A.
name: Henrich, Lea
name: Lauber, Christiane
name: Broel, Niklas
name: Ghezellou, Parviz
name: Karrer, Dominik
name: Spengler, Bernhard
name: Langfelder, Kim
name: Stressler, Timo
name: Zorn, Holger
name: Gand, Martin
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: Additional file1
Selective Internal Radiation Therapy (SIRT) for Hepatic Metastases of Uveal Melanoma: A Systematic Review
Creators: name: Alexander, Harry
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Other Medicine and Health Sciences
subject: Medicine and Health Sciences

description: The aim of this review was to assess the effectiveness and safety of SIRT in the treatment of hepatic metastases from Uveal Melanoma.
title: Combined use of percutaneous radiofrequency ablation and ethanol injection for hepatocellular carcinoma in high-risk locations: Its effectiveness, safety and follow up result.
Creators: name: Jeon, Seong Woo
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Outcomes
subject: Multidisciplinary cancer care
subject: Cancer
subject: Treatment effects
subject: Efficacy studies
subject: Ablation procedures
subject: Ultrasound
subject: Percutaneous
subject: CT
subject: Management
subject: Interventional non-vascular
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Hepatocellular carcinoma (HCC) is the fifth most common cancer worldwide and the third most frequent cause of cancer death(1,2). Although tumor resection remains a first-line treatment, only approximately 30% of patients can benefit from curative...
Aerosol Concentration Measurements in the Near-Wake of an Elliptical Cylinder for Exposure Prediction
Creators: name: Pickett, Kimberly W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: Wind tunnel experiments were conducted to investigate size-specific particle concentrations in the near-wake of an elliptical cylinder. The cylinder, 0.86 m tall with major and minor axes of 0.17m and 0.097 m respectively, served as a human surrogate. The freestream velocity (1.2 m/s) was perpendicular to the major axis resulting in a Reynolds number of approximately 13,600, representative of a typical occupational setting. An ultrasonic atomizer was placed downstream of the cylinder, inside the wake, to generate a poly-disperse liquid aerosol. Cascade impactors were used to determine the atomizer mass generation rate and aerosol concentrations for 6.3 - 9.7μm oil particles. The mass generation rate was 7.2μg/s for this size range, representing 67.2% of the oil particles by mass in the respirable size range. Particle concentrations were measured at three locations in the near-wake of the cylinder to represent the breathing, elbow, and hip regions. The concentrations were expressed as dimensionless numbers relating concentration to the atomizer mass generation rate(m[subscript]o), the height(H) and breadth(D) of the cylinder, and the freestream velocity(U). The dimensionless concentrations were 6.7, 65.5, and 4.3 for the breathing, elbow, and hip regions, respectively. The dimensionless concentrations for the breathing zone and hip region showed good agreement with sulfur hexafluoride(SF[subscript]6) tracer gas concentrations measured within the near-wake of an anthropometric mannequin, as expected for small particles. However, higher particle concentrations in the elbow region were identified and attributed to the geometric differences between the cylinder and bent mannequin elbows. For a worker facing downstream, a dimensionless breathing zone concentration of 7.0 is a reasonable estimate for respirable aerosols generated in the wake. An industrial hygienist can use this dimensionless concentration to estimate a worker's exposure once the worker's height and chest breadth, freestream velocity, and contaminant mass generation rate are known. Therefore, the primary significance of the work is to extend a simple model of human exposure to aerosols and to provide a simple estimator for assessment and control studies.
Reforming Education in the Context of Weak States: The Political Economy of Education Reforms in Peru 1995-2020
Creators: name: Admin, RISE
name: Balarin, María
name: Saavedra, Mauricio
Publisher: name: University of Oxford
Year: 2023
Subjects: Education systems not elsewhere classified
Other education not elsewhere classified
Political economy and social change

description: This paper explores the political economy of education reforms in Peru through an analysis of the recent history of education policies in the country, and with a focus on three selected areas – curriculum, teachers and assessment.
Magnetic properties of Fe$_{1-x}$Ni$_x$ alloy from CPA+DMFT perspectives
Creators: name: Poteryaev, Alexander I.
name: Skorikov, Nikolay A.
name: Anisimov, Vladimir I.
name: Korotin, Michael A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use a combination of the coherent potential approximation and dynamical mean field theory to study magnetic properties of the Fe$_{1-x}$Ni$_x$ alloy from a first principles. Calculated uniform magnetic susceptibilities have a Curie-Weiss-like behavior and extracted effective temperatures are in agreement with the experimental results. The individual squared magnetic moments obtained as function of nickel concentration follow the same trends as experimental data. An analysis of the ionic and spin weights shows a possibility of a high-spin to intermediate- and low-spin states transitions at high temperatures.
Hazard Assessment of United Arab Emirates (UAE) Incense Smoke
Creators: name: Cohen, Rebecca
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Burning UAE incense inside their homes is a common practice of Emeriti citizens and has been recognized as a source of indoor air pollution that can cause adverse effects to the individuals exposed to the compounds emitted. The goal of this study was to evaluate the hazards of burning incense indoors by first characterizing the particles and gases emitted from UAE incense when burned, then observing in vitro biomarkers of possible health effects in humans using cultured cells exposed to incense-derived compounds. To identify the emitted compounds, two types of UAE incense were burned in a specially designed indoor environmental chamber (22m[3]) to simulate the smoke concentration in a typical living room followed by analysis of the chamber air. Air analysis included determining particle (PM), carbon monoxide (CO), oxides of nitrogen (NOx) and formaldehyde (HCHO) concentrations as well as particle sizing, and carbonyl analysis. To examine potential health effects indicators, human lung cells were exposed to the incense emissions in vitro and the cell inflammatory responses were recorded. Analysis showed that the emissions from the incense burn included PM, CO, NOx and HCHO along with several other carbonyls. A significant inflammatory response was observed in response to the smoke components. Therefore, it is concluded that incense smoke contributes to indoor air pollution and can potentially be harmful to humans.
Additional file 1 of Identification of mothers with mental health problems is accidental: perceptions of health care providers on availability, access, and support for maternal mental health care for adolescent mothers in Malawi
Creators: name: Tembo, Chimwemwe
name: Portsmouth, Linda
name: Burns, Sharyn
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1.
title: Diagnostic and threatment of benign hypervascular liver masses in children.
Creators: name: Narbutov, Anton
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Abdomen
subject: Interventional vascular
subject: Paediatric
subject: Catheter arteriography
subject: CT-Angiography
subject: Ultrasound-Colour Doppler
subject: Angioscopy
subject: Embolisation
subject: Surgery
subject: Arteriovenous malformations
subject: Haemangioma
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Benign hypervascular liver tumors (BHLT) represent a rather diverse group of diseases. Understanding of vascular tumors in children is much more difficult because of the wide range of terminology used. In the literature often any benign...
Evidence for cautios processing near the hands: A re-analysis of Liepelt & Fischer (2016)
Creators: name: Nett, Tillmann
name: Ellinghaus, Ruben
name: Fischer, Rico
name: Ulrich, Rolf
name: Liepelt, Roman
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Cognition and Perception
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Registration of all data and analysis scripts for the manuscript "Evidence for Cautios Processing Near the Hands: A Re-Analysis of Liepelt and Fischer (2016) Based on Drift Diffusion Modeling and Distributional Analyses"
Review of Asbestos Abatement Programs For Universities or Large Multifunctional Institutions
Creators: name: Weggel, Patricia S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1986

description: As of 1985, institutions operated by state and local governments are required by OSHA/EPA to protect their employees from hazardous asbestos exposures. This study examines asbestos abatement programs of three universities to determine whether they a) comply with federal and state laws; b) are effective in providing a safe and healthy working and living environment, and c) are managed in an effective manner. Two hundred fifty-nine air samples were analyzed to characterize airborne asbestos concentrations during asbestos management and abatement activities. The arithmetic mean concentration during asbestos removal, 3.04 fibers per cubic centimeter air, exceeded the legal permissible exposure limit of .2 f/cc. Although university asbestos abatement programs generally met minimum legal requirements, improvement was necessary in support programs for medical monitoring and respirators. Management improvements include 1) the enforcment of policies regarding asbestos abatement work practices and personal protection; 2) the expedition of funds for the removal of asbestos in potentially hazardous locations; and, 3) the evaluation of the decision-making process to remvove asbestos.