cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Investigation of Factors Affecting the Performance of Laboratory Fume Hoods
Creators: name: Altemose, Brent A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1995

description: A "user tracer gas test" was performed on laboratory hoods, with a human subject standing in front of the hood, to assess hood containment ability. The relationship of face velocity and cross draft variables to hood containment ability is investigated. The ability of these variables and other tests, such as smoke challenges or tracer gas tests performed with a manikin at the hood, to predict the results of the user tracer gas test is evaluated. All of the laboratory hoods tested in this study were identical bench top bypass hoods with horizontally slidings ashes. A face velocity traverse, cross draft measurements, a pitot traverse to measure exhaust flow, a smoke test, a manikin tracer gas test, and a user tracer gas test were performed on each hood in several different sash positions. Based on the data collected, face velocity, its distribution and variability, and the magnitude of cross drafts relative to face velocity are important variables in determining hood leakage. "Unblocked" vortices, formed such that no physical barrier exists between the vortex and room air or a person in front of the hood, are identified as important sites of leakage. For the hoods evaluated in this study, unblocked vortices were observed along the beveled side edges. The data support the hypothesis that in the presence of a person standing in front of the hood, leakage is more likely to occur if unblocked vortices are formed than if all vortices are blocked. Evidence suggests that cross drafts are more likely to cause leakage when flowing in a direction that may cause separated flow along a beveled edge of the hood and thereby augment the unblocked vortices along the edge. Results indicate that smoke tests, manikin tracer gas tests, and average face velocity all serve as useful monitoring techniques. Face velocity measurements and smoke tests, which are easy and inexpensive, may provide information which is as valuable as traditional manikin tracer gas tests. However, the agreement between the results of these tests and the results of the user tracer gas test are inconsistent and suggest that more research is needed to determine how to evaluate whether a hood protects its users.
Stephen Banfield. Sensibility and the English Song: Critical Studies of the Early 20th Century. Cambridge: Cambridge University Press, 1988. xvii, 619 pages.
Creators: Adams, Byron
Publisher: name: Columbia University
Year: 1992
Subjects: Music

description: Although the history of English music contains examples of composers who wrote well for single voice and instrument--Dowland or Purcell come first to mind-a tradition of art song with piano accompaniment developed in England much later than the German Lied and French metodie. The retarded development of the art song in England, its subsequent flowering and present continuation are chronicled extensively in Stephen Banfield's book Sensibility and the English Song. Banfield has undertaken the heroic task of surveying in one volume the course of English art song from the Victorians to the present; the result is a significant achievement, though one unfortunately marred by lapses in organization, perspective, and discrimination. Sensibility and the English Song is a remarkably inclusive book. While Banfield mercifully excludes such peripheral figures as Liza Lehmann and Maude Valerie White, he examines a catholic assortment of music, ranging from the songs of such major composers as Vaughan Williams and Britten to those of Benjamin Burrows, who is described as "an obscure freelance music theory tutor who led an unadventurous life in Leicester".
Isocurvature Constraints on Scalar Dark Matter from Inflaton Decay
Creators: name: Pierre, Mathias
name: Garcia, Marcos A. G.
name: Verner, Sarunas
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023

description: We investigate the production of a spectator scalar dark matter field that is directly coupled to the inflaton during inflation and reheating. We consider two specific inflationary potentials, namely the Starobinsky and T-model of inflation, which satisfy the constraints on the scalar tilt, $n_s$, and tensor-to-scalar ratio, $r$, measured by the Planck satellite. Excitation of light scalar dark matter during inflation may result in large isocurvature perturbations, which can be avoided by inducing a sizable effective dark matter mass during the inflationary phase. For purely gravitational production, the Planck isocurvature constraints require the dark matter mass to be larger than the Hubble scale at horizon exit, with $m_{\chi} \gtrsim 0.5H_*$. For small bare dark matter masses $m_{\chi} \ll H_*$, these constraints translate into a lower bound on the dark matter coupling to the inflaton. We argue that these constraints can applied to a wide class of single-field slow-roll inflation models. We also derive isocurvature, dark matter abundance, and Lyman-$\alpha$ constraints on the direct coupling and bare dark matter mass.
Reconstitution of a Biofilm Adhesin System from a Sulfate-Reducing Bacterium in Pseudomonas fluorescens
Creators: name: Karbelkar, Amruta A.
name: Font, Maria
name: Smith, T. Jarrod
name: Sondermann, Holger
name: O’Toole, George A.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: subject: 500

description: (2024). doi:10.1101/2023.11.22.568322
description: Biofilms of the sulfate reducing bacterium (SRB) Desulfovibrio vulgaris Hildenborough (DvH) can facilitate metal corrosion in various industrial and environmental settings leading to substantial economic losses; however, the mechanisms of biofilm formation by DvH are not yet well-understood. Evidence suggests that a large adhesin, DvhA, may be contributing to biofilm formation in DvH. The dvhA gene and its neighbors encode proteins that resemble the Lap system, which regulates biofilm formation by Pseudomonas fluorescens, including a LapG-like protease DvhG and effector protein DvhD, which has key differences from the previously described LapD. By expressing the Lap-like adhesion components of DvH in P. fluorescens, our data support the model that the N-terminal fragment of the large adhesin DvhA serves as an adhesin “retention module” and is the target of the DvhG/DvhD regulatory module, thereby controlling cell-surface location of the adhesin. By heterologously expressing the DvhG/DvhD-like proteins in a P. fluorescens background lacking native regulation (ΔlapGΔlapD) we also show that cell surface regulation of the adhesin is dependent upon the intracellular levels of c-di-GMP. This study provides insight into the key players responsible for biofilm formation by DvH, thereby expanding our understanding of Lap-like systems.
Topological properties of spaces of projective unitary representations
Creators: name: Espinoza, Jesus
name: Uribe, Bernardo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 47D03

description: Let $G$ be a compact and connected Lie group and $PU(\mathcal H)$ be the group of projective unitary operators on a separable Hilbert space $\mathcal H$ endowed with the strong operator topology. We study the space $hom_{st}(G, PU(\mathcal H))$ of continuous homomorphisms from $G$ to $PU(\mathcal H)$ which are stable, namely the homomorphisms whose induced representation contains each irreducible representation an infinitely number of times. We show that the connected components of $hom_{st}(G, PU(\mathcal H))$ are parametrized by the isomorphism classes of $S^1$-central extensions of $G$, and that each connected component has the group $hom(G,S^1)$ for fundamental group and trivial higher homotopy groups. We study the conjugation map $PU(\mathcal H) \to hom_{st}(G, PU(\mathcal H))$, $F \mapsto FαF^{-1}$, we show that it has no local cross sections and we prove that for a map $B \to hom_{st}(G, PU(\mathcal H))$ with $B$ paracompact of finite covering dimension, local lifts to $PU(\mathcal H)$ do exist.
description: 16 pages, corrected and published version. The existence of lifts depends on the finite covering dimension condition on the paracompact spaces. This condition was forgotten on the first draft and it is properly added on this final version
title: The Inguinal Canal. Imaging of Common and Uncommon Pathology
Creators: name: Pire, María
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Abdomen
subject: Pelvis
subject: CT
subject: MR
subject: Ultrasound
subject: Education
subject: Hernia
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe and illustrate the imaging features of common and uncommon inguinal canal...
Parametric resonance induced chaos in magnetic damped driven pendulum
Creators: name: Khomeriki, Giorgi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Physics (physics.class-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A damped driven pendulum with a magnetic driving force, appearing from a solenoid, where ac current flows is considered. The solenoid acts on the magnet, which is located at the free end of the pendulum. In this system, the existence and interrelation of chaos and parametric resonance is theoretically examined. Derived analytical results are supported by numerical simulations and conducted experiments.
A Fiber Optic Spectroscopic Analysis of Diuron Sorption/Desorption Processes in Subsurface Media
Creators: name: Rossabi, Joseph
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: The quantitative assessment of sorption and desorption processes is vital to the complete understanding of contaminant fate and transport in the subsurface. The sorption and desorption of a synthetic organic pesticide, diuron, was studied by optical ultraviolet (UV) absorption spectroscopy in two configurations. The first utilized the "grab sample" method and a conventional laboratory benchtop UV/VIS spectrophotometer, and the second employed a fiber optic spectrophotometer. The "grab sample" method is susceptible to systematic errors related to the removal of the sample from the subsurface system for analysis. Fiber optic spectrophotometry has the potential for noninvasive, nondestructive measurements obtained within the subsurface media. The hypothesis of this work was that fiber optic spectrophotometry can be used to determine the fate and transport of a pesticide in laboratory systems of subsurface media, using a one dimensional column configuration. The results of this research demonstrate that fiber optic spectroscopic methods can be used for one-dimensional subsurface media column sorption/desorption and tracer experiments under the conditions used in this study. In addition, sorption kinetic experiments indicate that equilibrium conditions are not attained after 140 days of equilibration. Data from equilibrium distribution experiments support this conclusion.
The games we play: Prosocial choices under time pressure reflect context-sensitive information priorities.
Creators: name: Teoh, Yi Yang
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Behavioral Economics
subject: Cognitive Psychology
subject: Economics
subject: Cognition and Perception
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Recent work on altruistic decision making suggests that attention’s flexible and dynamic role may drive changes in altruistic choice under time constraints because people prioritize looking first at preferred information (Teoh, Yao, Cunningham, & Hutcherson, 2020). Specifically, people under time constraints generally make more selfish choices, which can be explained in part because under time pressure (compared to time delay) people prioritize acquiring information about their own outcomes and expedite their choices without acquiring information about others’ outcomes. However, in contrast to this study, which found that time pressure increases selfishness, a large body of work has argued that time pressure should result in more prosocial choices, because automatic and intuitive processes favour prosociality (Bouwmeester et al., 2017; Rand, 2017; Rand, Greene, & Nowak, 2012). This raises a puzzle about why we find divergent behavioural results from other studies, and whether the attentional explanation we proposed to explain changes under time pressure might provide a resolution. One notable difference between our work and prior studies is that they employ different economic game paradigms. Specifically, researchers generally observe increased prosociality under time pressure when prosociality is measured within an ultimatum/public goods game where cooperation leads to maximal joint interest. In contrast, our work showing that time pressure increases selfish behavior utilizes Dictator games where self-interest and other’s welfare are generally in conflict (Teoh et al., 2020). We predicted that these different game contexts might induce different attentional biases, which could in turn account for differences in the effects of time pressure on choice. Thus, in this study, we seek to investigate the information search strategies used in these disparate contexts under both high and low time pressure and the influence they exert on subsequent choice behavior. More specifically, because in Ultimatum games participants’ own outcomes are reliant on their partners’ choices, we may expect participants to give more consideration to their partners’ welfare and be less selfish. Under time pressure, this may result in a prioritisation of others’ welfare due to its greater potential to impact participants’ own outcomes, biasing attention towards the other, and behavior towards prosociality.
title: Using a local Dose Index Registry system to determine Notification Values for the MITA XR 25 (Dose Check) Standard in CT
Creators: name: Shinozaki, Masafumi
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Quality assurance
subject: Physics
subject: CT
subject: Radiation physics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Since a new technical standard for X-ray CT has been published by the National Electrical Manufacturers Association (NEMA), the alert value and notification value for the cumulative dose are configurable by operators of CT systems in conjunction...
Evaluation of Organic Carbon Loadings in Two Reservoirs
Creators: name: Jackson, Tracy L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1995

description: To effectively control TOC concentrations in the two reservoirs serving the Orange Water and Sewer Authority (OWASA), the sources of TOC must be known. This study used a simplified steady-state mass balance approach to compare the main sources of TOC in the University Lake and the Cane Creek Reservoir. The main TOC sources were the TOC which is directly loaded to the reservoirs from the watershed (allochthonous TOC) and the TOC which is produced in the reservoirs by algae generated as a result of nutrient influxes to the reservoirs (autochthonous TOC). To determine the allochthonous TOC load, existing TOC and flow data was used along with TOC data from the sampling program. The sampling program involved monthly sampling of the tributaries of the University Lake and Cane Creek Reservoir for TOC over a five-month period. The autochthonous TOC load was determined by estimating the amount of algae which would grow in the reservoir due to the existing nutrient loadings. The results of this study indicate that allochthonous TOC is the primary source of TOC in the reservoirs. The TOC load from the watershed accounts for 72 to 90 percent of the total TOC concentration in the reservoirs. The autochthonous TOC load accounts for only 10 to 28 percent of the in-lake TOC concentration.
title: Mentoring needs and expectations of Generation-Y human resources practitioners: Preparing the next wave of strategic business partners
Creators: name: Rekar-Munro, Carolin
Publisher: name: Journal of Management Research
Year: 2009
Subjects: Mentoring
Generation Y
Leadership
Human capital

description: As organizations prepare for the arrival of Generation-Y HR practitioners as the next generation of strategic business partners in our 21st century workplaces, questions ignite about Generation-Y’s values and aspirations, and how we can engage them in our workplaces. At the forefront of organizational initiatives is mentorship which has resurged as a leading employee development tool. The purpose of this paper is to: examine the benefits of mentorship and the challenges and opportunities of Generation-Y engagement in the workplace; present results from a study on mentoring needs and expectations of Generation-Y HR practitioners; and; present a mentorship model built on collaboration and an action research framework. Surveys, focus groups, and one-on-one interviews with 452 participants generated robust data on the needs and expectations of Generation-Y in the formative years of their careers. Results are presented in the following thematic areas: competency profile of effective mentors, framework for mentor-protégé working relationships, anticipated outcomes of mentoring, approaches to learning and development, e-mentoring, and protégés’ contributions to mentoring relationships. Findings reveal that mentoring is vital to development of the competencies for senior HR accountabilities and for understanding how HR fulfils strategic mandate. To achieve this mandate a five-phase mentoring model is proposed with an emphasis on sparking synergy between Generation-Y’s personal values and organizational objectives. The need for mentorship programs with a strategic orientation is timely as HR continues to assert its leadership presence at the boardroom table and prepares the next generation of HR practitioners under whose leadership global communities will thrive.
Childhood Intergroup Perceptions Study (ChIPS): Study-wide Preregistration
Creators: name: Enright, Elizabeth
name: Olson, Kristina
name: Dunham, Yarrow
name: Pauker, Kristin
name: Gaither, Sarah
name: Halim, May
Publisher: name: Open Science Framework
Year: 2022

description: This document describes general study characteristics for ChIPS, with a focus on sampling characteristics, inclusion/exclusion criteria, and some common aspects of the methods and task implementation. These attributes of the study are shared across all study-related projects.
Photocell Optimisation Using Dark State Protection
Creators: name: Fruchtman, Amir
name: Gómez-Bombarelli, Rafael
name: Lovett, Brendon W.
name: Gauger, Erik M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Conventional photocells suffer a fundamental efficiency threshold imposed by the principle of detailed balance, reflecting the fact that good absorbers must necessarily also be fast emitters. This limitation can be overcome by `parking' the energy of an absorbed photon in a dark state which neither absorbs nor emits light. Here we argue that suitable dark states occur naturally as a consequence of the dipole-dipole interaction between two proximal optical dipoles for a wide range of realistic molecular dimers. We develop an intuitive model of a photocell comprising two light-absorbing molecules coupled to an idealised reaction centre, showing asymmetric dimers are capable of providing a significant enhancement of light-to-current conversion under ambient conditions. We conclude by describing a roadmap for identifying suitable molecular dimers for demonstrating this effect by screening a very large set of possible candidate molecules.
description: 14 pages, 16 figures, comments are very welcome!
title: Differentiation of ovarian carcinomas from borderline ovarian tumors by ADC histograms of the solid component.
Creators: name: Mimura, Rie
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cancer
subject: Imaging sequences
subject: MR-Diffusion/Perfusion
subject: Pelvis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Borderline ovarian tumors represent 15-20％ of epithelial ovarian neoplasms with an incidence of 5.3 out of 100,000 women per year [1]. Because they affect young women of childbearing age, it is important to spare the fertility during the...
Measuring sliding friction at the atomic scale
Creators: name: Weymouth, Alfred J.
name: Gretz, Oliver
name: Riegel, Elisabeth
name: Giessibl, Franz J.
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: 530 Physik

description: Sliding friction is a nonconservative force in which kinetic energy is dissipated via various phenomena. We used lateral force microscopy to measure the energy loss as a tip oscillates laterally above a surface with sub-Angstrom amplitudes. By terminating the tip with a single molecule, we ensure the tip ends in a single atom. We have reported that energy is dissipated as a CO molecule at the tip apex is oscillated over pairs of atoms. This is a result of the CO being bent in different directions as the tip moves in one direction and then in the other. We confirm this with a model that describes the CO on the tip as a torsional spring. Surprisingly, we only observe dissipation within a small range of tip heights. This allows us to determine the necessary components to model friction and shows how sensitive friction is to the local potential energy landscape.
Three-Dimensional Finite Element Simulations of a Turbulent Push-Pull Ventilation System
Creators: name: Ahn, Kwangseog
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: A finite element model is used to simulate a push-pull ventilation system in three spatial dimensions. The turbulent Navier-Stokes equations and the turbulence kinetic energy equation are solved employing a one equation turbulence model. A test case is a simple push-pull system consisting of a square jet and square hood. Velocity and turbulence fields are calculated for the test case with cross draft velocities of 0, 100, and 250 fpm. Measurements of velocity and turbulence fields were performed to validate the numerical predictions using a visualization technique and hot-film anemometry. Velocity field predictions were reasonable, however, turbulence predictions were not as good. The discrepancy is probably due to an inadequate turbulence model and numerical errors resulting from calculations on coarse grids.
Construction and classification of novel BPS Wilson loops in quiver Chern-Simons-matter theories
Creators: name: Ouyang, Hao
name: Wu, Jun-Bao
name: Zhang, Jia-ju
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we construct and classify novel Drukker-Trancanelli (DT) type BPS Wilson loops along infinite straight lines and circles in $\mathcal N=2,3$ quiver superconformal Chern-Simons-matter theories, Aharony-Bergman-Jafferis-Maldacena (ABJM) theory, and $\mathcal N=4$ orbifold ABJM theory. Generally we have four classes of Wilson loops, and all of them preserve the same supersymmetries as the BPS Gaiotto-Yin (GY) type Wilson loops. There are several free complex parameters in the DT type BPS Wilson loops, and for two classes of Wilson loops in ABJM theory and $\mathcal N=4$ orbifold ABJM theory there are supersymmetry enhancements at special values of the parameters. We check that the differences of the DT type and GY type Wilson loops are $Q$-exact with $Q$ being some supercharges preserved by both the DT type and GY type Wilson loops. The results would be useful to calculate vacuum expectation values of the DT type Wilson loops in matrix models if they are still BPS quantum mechanically.
description: V1, 28 pages; V2,35 pages, published version
Comparison the effect of position laid-back and cradle on breastfeeding experience of primiparous women
Creators: name: Asefebashiri
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: breastfeeding

description: Breast milk is an ideal food for the growth and development of the baby. Breast milk is the best choice for feeding infants and the most important factor in preventing infectious diseases and allergies in infants, especially in the first six months of life. Breastfeeding provides many benefits for infants and mothers, so the World Health Organization recommends that exclusive breastfeeding for the first 6 months of life and continued breastfeeding and appropriate complementary foods until the age of two. be done. Exclusive breastfeeding is an important factor in reducing infant mortality. In recent years, due to the decrease in the number of exclusive breastfeeding, studies have shown that several factors are involved in reducing the exclusive breastfeeding. One of the personal reasons for stopping breastfeeding is the experience of breastfeeding problems. And breast infection, feeling tired and having difficulty attaching to the breast and sucking on the breast by the baby and difficulty in positioning the baby are involved.Breastfeeding experience in mothers is effective for starting and continuing breastfeeding, doing exclusive feeding and deciding to breastfeed the next baby in the future. Breastfeeding method is one of the most important factors affecting the breastfeeding experience. Breastfeeding method is a combination of the position and attachment of the baby to the breast. The position of the baby and how it attaches to the breast can contribute to breastfeeding problems. According to studies, incorrect positioning and attachment of the baby to the breast is the main cause of pain, sores and fissures of the nipple and breast congestion. The status of breastfeeding has been considered by researchers both for prevention and as a treatment for breast problems and a factor for success in breastfeeding.
title: Usefulness of metal artifact reduction algorithm for orthopedic implants (O-MAR) for evaluation of abdominal CT: results in phantom and clinical study
Creators: name: Jeong, Seonji
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Abdomen
subject: Radiation physics
subject: Image manipulation / Reconstruction
subject: CT
subject: Observer performance

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Introduction Due to an aging society and the advance of orthopedic surgery techniques, many old people underwent major orthopedic surgeries such as spinal fixation for spinal stenosis and hip replacement due to degenerative hip. Accordingly, body...
Replication of Critcher and Gilovich (2008) at Showa Women's University, Tokyo, Japan
Creators: name: Fujishima, Yoshitsugu
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Anchoring and Adjustment
subject: Crithcer and Gilovich (2008)
subject: incidental environmental anchor
subject: Japan
subject: replication
subject: Showa Women's University

description: 本研究の目的は、Critcher and Gilovich (2008, Study 2)の直接的追試を行うことである。2016年度前期に昭和女子大学で開講された心理学実験実習Bの一部として行う。
An Evaluation of "Developing an Environmental Report Card:" A Potential Model for Environmental Education In-Service Teacher Training for Middle and High School Science Teachers in North Carolina
Creators: name: Leopold, John R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1995

description: This report evaluates an environmental education in-service teacher training institute for middle and high school science teachers in North Carolina, entitled "Developing an Environmental Report Card". The four week, residential program was designed to prepare the 24 participating teachers to lead their students through a holistic assessment of their local environment. Several innovative aspects of the Institute, including its scope, content, local focus, and method of implementation, warrant its examination as a potential model for future, similar efforts. Evaluation data was collected using a variety of methods, including pre and post-tests, questionnaires, and interviews. The information collected was used to assess the strengths and weaknesses of the Institute's implementation as well as its outcomes during the subsequent school year. The results of the evaluation suggest that the Institute was successful at providing activities, resources, and information relevant to the participants' classroom teaching. The wide use of environmental professionals, throughout the Institute's implementation, provided the participants with a network of local and state level professional contacts to support their environmental education teaching. The evaluation also highlights the importance of providing the participants with an atmosphere in which they can exchange information and ideas among themselves. It further suggests that, at times, a lack of consistent focus for the Institute's activities may have detracted from its ability to provide the teachers with a systematic approach to the integration of environmental education in to their classes.
title: Effects on SSDE’s from scout order and isocentre relative position
Creators: name: Jackson, Dana
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Radioprotection / Radiation dose
subject: Radiation physics
subject: CT
subject: Physics
subject: Radiation safety
subject: Quality assurance
subject: Dosimetric comparison

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Size specific dose estimates are proposed as being a more robust method to determine dose estimates to patients. The purpose of this research was to: 1) Evaluate the effects of scout acquisition order when employing dose modulation on the size...
Addendum to the Corrigendum to: Lattice dynamics in the conformational environment of multilayered hexagonal boron nitride (h-BN) results in peculiar infrared optical responses
Creators: name: Cigarini, Luigi
Publisher: name: figshare
Year: 2023
Subjects: Condensed matter modelling and density functional theory
Physical chemistry not elsewhere classified
Theoretical and computational chemistry not elsewhere classified

description: Clarification of the text in the previous Corrigendum.
The Meyer Manuscript: An 18th-Century American Tunebook
Creators: Music, David W.
Publisher: name: Columbia University
Year: 1980
Subjects: Music
Music--Instruction and study

description: The Meyer collection includes an 18th-century American tunebook in manuscript. This oblong tunebook, catalogued under the call number TN4/M294/T, is bound in a soft cloth cover and measures 16.5 by 10.5 centimeters. There are 'thirty-seven folios, each with entries on both recto and verso. Unfortunately the manuscript contains neither a date nor an owner's signature, and it is not known where or from whom Henry Meyer acquired it. Although the possibility of determining its exact provenance and date is scant, the theoretical introduction, the musical notation, and especially the repertory of the manuscript all point directly to a New England origin and a date in the second half of the 18th century. Because of its apparent reliance on previously published materials, the Meyer manuscript cannot be said to be as significant as, for example, the Waterhouse manuscript, which transmits pieces copied before their first publications. Nevertheless, the Meyer manuscript does perhaps tell us something about the manner of performing psalm- and fuging-tunes in 18th century America when singers were scarce.
Non-abelian T-duality of Pilch-Warner background
Creators: name: Dimov, Hristo
name: Mladenov, Stefan
name: Rashkov, Radoslav C.
name: Vetsov, Tsvetan
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we obtain the non-abelian T-dual geometry of the well-known Pilch-Warner supergravity solution in its infrared point. We derive the dual metric and the NS two-form by gauging the isometry group of the initial theory and integrating out the introduced auxiliary gauge fields. Then we use the Fourier-Mukai transform from algebraic geometry to find the transformation rules of the R-R fields. The dual background preserves the $\mathcal{N}=1$ supersymmetry of the original one due to the fact that the Killing spinor does not depend on the directions on which the N-AT-D is performed. Finally, we consider two different pp-wave limits of the T-dual geometry by performing Penrose limits for two light-like geodesics.
description: 23 pages; v2: minor corrections, comments and references added; v3: supersymmetric analysis and pp-wave limits added, published version
title: Tubes and lines in neonatal chest radiograph
Creators: name: TUMMA, ROJA
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Patterns of Care
subject: Catheters
subject: Conventional radiography
subject: Thorax
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: In neonatal intensive care units various tubes and lines are placed as required for managing sick neonates. Knowledge about proper location of various tubes and lines on chest radiographs helps in early detection of malpositioning and prevention of...
Cardiovascular and Thermoregulatory Toxicity of an Emission Source Particulate in Healthy and Compromised Rats
Creators: name: Campen, Matthew J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1996

description: Recent epidemiological studies have demonstrated a positive association between concentrations of ambient particulate matter (PM) and cardiopulmonary morbidity and mortality; however, there are limited toxicological data to support these findings. In rodents, exposure to certain xenobiotics causes an acute hypothermic response, characterized by decreases in body core temperature (Tco), heart rate (HR), and oxygen consumption. This study investigates the cardiovascular toxicity of PM and its potential relationship to the hypothermic response following intratracheal instillation of residual oil fly ash (ROFA), an emission source pollutant, in conscious, unrestrained male Sprague-Dawley rats. Four phases of this study were conducted to examine the effects of ROFA (0.0, 0.25, 1.0, or2.5mg/rat) in normal rats and in three models of compromised animals: 1) cold exposed rats, 2) rats with pulmonary inflammation, and 3) rats with pulmonary inflammation and hypertension. HR, T[co], and electrocardiographic (ECG) data were monitored continuously in these rats via aradiotelemetric data acquisition system for 96 hours following instillation. T[co] and HR decreased in a dose dependent manner in normal subjects following ROFA instillation. ECG data showed rate-related changes as well as increases in frequency and severity of arrhythmias, particularly atrioventricular nodal block and premature beats. Responses were exacerbated in all compromised animal models compared to those seen in healthy animals. Lethality was observed only in animals with concurrent pulmonary hypertension and inflammation and was preceded by severe decreases in HR and T[co]. These data demonstrate increased toxicity of emission source particulates in animals with cardiopulmonary disease and support epidemiological studies that report positive correlations between increased PM concentrations and excess mortality in cardiopulmonary-compromised patients.
Edge Transport in the Trivial Phase of InAs/GaSb
Creators: name: Nichele, Fabrizio
name: Suominen, Henri J.
name: Kjaergaard, Morten
name: Marcus, Charles M.
name: Sajadi, Ebrahim
name: Folk, Joshua A.
name: Qu, Fanming
name: Beukman, Arjan J. A.
name: de Vries, Folkert K.
name: van Veen, Jasper
name: Nadj-Perge, Stevan
name: Kouwenhoven, Leo P.
name: Nguyen, Binh-Minh
name: Kiselev, Andrey A.
name: Yi, Wei
name: Sokolich, Marko
name: Manfra, Michael J.
name: Spanton, Eric M.
name: Moler, Kathryn A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present transport and scanning SQUID measurements on InAs/GaSb double quantum wells, a system predicted to be a two-dimensional topological insulator. Top and back gates allow independent control of density and band offset, allowing tuning from the trivial to the topological regime. In the trivial regime, bulk conductivity is quenched but transport persists along the edges, superficially resembling the predicted helical edge-channels in the topological regime. We characterize edge conduction in the trivial regime in a wide variety of sample geometries and measurement configurations, as a function of temperature, magnetic field, and edge length. Despite similarities to studies claiming measurements of helical edge channels, our characterization points to a non-topological origin for these observations.
Entanglement generation in periodically driven integrable systems: dynamical phase transitions and steady state
Creators: name: Sen, Arnab
name: Nandy, Sourav
name: Sengupta, K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a class of periodically driven $d-$dimensional integrable models and show that after $n$ drive cycles with frequency $ω$, pure states with non-area-law entanglement entropy $S_n(l) \sim l^{α(n,ω)}$ are generated, where $l$ is the linear dimension of the subsystem, and $d-1 \le α(n,ω) \le d$. We identify and analyze the crossover phenomenon from an area ($S \sim l^{ d-1}$ for $d\geq1$) to a volume ($S \sim l^{d}$) law and provide a criterion for their occurrence which constitutes a generalization of Hastings' theorem to driven integrable systems in one dimension. We also find that $S_n$ generically decays to $S_{\infty}$ as $(ω/n)^{(d+2)/2}$ for fast and $(ω/n)^{d/2}$ for slow periodic drives; these two dynamical phases are separated by a topological transition in the eigensprectrum of the Floquet Hamiltonian. This dynamical transition manifests itself in the temporal behavior of all local correlation functions and does not require a critical point crossing during the drive. We find that these dynamical phases show a rich re-entrant behavior as a function of $ω$ for $d=1$ models, and also discuss the dynamical transition for $d>1$ models. Finally, we study entanglement properties of the steady state and show that singular features (cusps and kinks in $d=1$) appear in $S_{\infty}$ as a function of $ω$ whenever there is a crossing of the Floquet bands. We discuss experiments which can test our theory.
description: v3; 17 pages + 15 figures, expanded version with new results on dynamical phase transitions and steady state entanglement; changed title and added a co-author
Implementing Water Safety Plans in North Carolina: Bridges, Barriers, and Potential Benefits
Creators: name: Baum, Rachel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: While developed countries are often thought to have assured safe drinking water, periodic contamination events and outbreaks still occur. Many countries have implemented water safety plans (WSPs), a preventive risk management approach, to improve drinking water quality, with documented benefits. However, WSPs are not widespread in the US. This study examines the enabling environment promoting the adoption of WSPs, the added value of preventive risk management, and the willingness and ability of water utilities to implement WSPs in North Carolina (NC). Results show that guidelines, regulations, contextual evidence, and public health focus create the enabling environment. US regulations and WSP steps align in most areas, but gaps exist in a few. In NC, implementation of WSPs would require: time and resources, perceived benefits, and strong leadership. This study contributes to understanding the barriers to WSP adoption and implementation in the US and the extent to which implementing WSPs could benefit water systems to improve drinking water safety and human health.
title: Location of thyroid gland and chest x-ray imaging in children
Creators: name: Glisic, Marija
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Biological effects
subject: Radiation safety
subject: Radiation effects
subject: Conventional radiography
subject: Thyroid / Parathyroids
subject: Radioprotection / Radiation dose
subject: Paediatric

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Amog many indications for chest x-ray imaging in children, pneumonia remains one of the most frequent indications.Childhood pneumonia is the leading single cause of mortality in children aged less than 5 years according to severe symptoms and...
The Sources of the Christmas Interpolations in J. S. Bach's Magnificat in E-flat Major (BWV 243a)
Creators: Cammarota, Robert M.
Publisher: name: Columbia University
Year: 1983
Subjects: Music

description: Apart from changes in tonality and instrumentation, the two versions of J. S. Bach's Magnificat differ from each other mainly in the presence of four Christmas interpolations in the earlier E-flat major setting (BWV 243a). The custom of troping the Magnificat at vespers on major feasts, particularly Christmas, Easter, and Pentecost, was cultivated in German-speaking lands of central and eastern Europe from the 14th through the 17th centuries; it continued to be observed in Leipzig during the first quarter of the 18th century. By the end of the 16th century, composers interpolated the Magnificat in three different ways: (I) by alternating the verses of the Magnificat with polyphonic settings of the interpolations, (2) by troping the Magnificat text, or (3) by using the quodlibet technique: (a) within a polyphonic setting of the Magnificat, one voice (e.g., tenor) sings the Rotula while the other voices sing the text of the Magnificat; (b) conversely, in a polyphonic setting, one voice (e.g., tenor) sings the Magnificat plainsong in long note values as a cantus firmus while the other voices sing the Rotula; or (c) by combining the three basic techniques cited above (Rotulae, trope, and quodlibet) within a setting of the Magnificat. The reemergence of the anonymous Magnificat in D major and the identification of J. A. Kuhnau as the copyist of the Laudes and the continuo part firmly establish the connection of this manuscript with Leipzig. We have seen, moreover, that this Magnificat was interpolated with the set of Laudes attributed to Johann Kuhnau. The occurrence of these same four Laudes in Bach's Magnificat in E-flat major testifies to Bach's awareness and observance of the Leipzig custom of interpolating the Magnificat at Christmas and strengthens the belief that he not only knew the set of Laudes attributed to Johann Kuhnau but also based his own set on them-as Spitta rightly observed over one hundred years ago.
Solvable Structures Associated to the Nonsolvable Symmetry Algebra $\mathfrak{sl}(2,\mathbb{R})$
Creators: name: Ruiz, Adrián
name: Muriel, Concepción
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34A05, 34A26, 34C14

description: Third-order ordinary differential equations with Lie symmetry algebras isomorphic to the nonsolvable algebra $\mathfrak{sl}(2,\mathbb{R})$ admit solvable structures. These solvable structures can be constructed by using the basis elements of these algebras. Once the solvable structures are known, the given equation can be integrated by quadratures as in the case of solvable symmetry algebras.
Performance Analysis of North Carolina County Special Waste Management Programs
Creators: name: Bendz, Christopher
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: This exploratory analysis examined the performance of North Carolina county programs that collect and manage two types of special wastes: discarded household appliances (also called "white goods") and scrap tires. Two performance measurements for these programs, pounds collected per county resident and program cost per ton, vary significantly across the state. Linear regression was used to analyze relationships between these measurements and several factors, including exogenous county factors obtained from census sources and endogenous program characteristics collected through phone surveys. Results indicate that the performance of county special waste programs is related to specific features of these programs, including methods used to educate citizens and business about scrap tire disposal, and outsourcing steps of the white goods collection and management process. No factors displayed the same relationship with the same measurement for both types of waste, which suggests determinants of program performance depend on particular characteristics of the special waste. Some evidence indicates product retailers may play an important role in special waste collection.
Flow-based network analysis of the Caenorhabditis elegans connectome
Creators: name: Bacik, Karol A.
name: Schaub, Michael T.
name: Beguerisse-Díaz, Mariano
name: Billeh, Yazan N.
name: Barahona, Mauricio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We exploit flow propagation on the directed neuronal network of the nematode Caenorhabditis elegans to reveal dynamically relevant features of its connectome. We find flow-based groupings of neurons at different levels of granularity, which we relate to functional and anatomical constituents of its nervous system. A systematic in silico evaluation of the full set of single and double neuron ablations is used to identify deletions that induce the most severe disruptions of the multi-resolution flow structure. Such ablations are linked to functionally relevant neurons, and suggest potential candidates for further in vivo investigation. In addition, we use the directional patterns of incoming and outgoing network flows at all scales to identify flow profiles for the neurons in the connectome, without pre-imposing a priori categories. The four flow roles identified are linked to signal propagation motivated by biological input-response scenarios.
description: 28 pages including Supplementary Information, 8 figures and 12 figures in the SI
title: Do fixed scan parameters suit every patient size in CT abdominal and pelvic examination?
Creators: name: Andonovska, Kostadinka
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Abdomen
subject: Pelvis
subject: CT
subject: Diagnostic procedure
subject: Dosimetric comparison

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Assessment of DLP value and image noise in adult patients scanned at fixed scan parameters during abdominal and abdominal and pelvic...