cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symmetric quadratic Hamiltonians with pseudo-Hermitian matrix representation
Creators: name: Fernández, Francisco M
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove that any symmetric Hamiltonian that is a quadratic function of the coordinates and momenta has a pseudo-Hermitian adjoint or regular matrix representation. The eigenvalues of the latter matrix are the natural frequencies of the Hamiltonian operator. When all the eigenvalues of the matrix are real, then the spectrum of the symmetric Hamiltonian is real and the operator is Hermitian. As illustrative examples we choose the quadratic Hamiltonians that model a pair of coupled resonators with balanced gain and loss, the electromagnetic self-force on an oscillating charged particle and an active LRC circuit.
Magnetic Impurity Inspired Abelian Higgs Vortices
Creators: name: Han, Xiaosen
name: Yang, Yisong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Inspired by magnetic impurity considerations some broad classes of Abelian Higgs and Chern--Simons--Higgs BPS vortex equations are derived and analyzed.
description: 19 pages
The impact of anxiety symptoms and treatment on Parkinson's disease-related disability: findings from the Parkinson's Progression Markers Initiative
Creators: name: Dahodwala, Nabila
name: Weintraub, Daniel
name: Bock, Meredith
name: Cho, Ryan
name: Caspell-Garcia, Chelsea
name: Brown, Ethan
name: Dobkin, Roseanne
Publisher: name: Zenodo
Year: 2023
Subjects: PPMI
Anxiety
Parkinson's Disease

description: Objective: Aim to determine the functional consequences of baseline anxiety symptoms and the longer-term impact of initiation of anxiety treatment in PD. This poster was presented in the Movement Disorders Society Conference held in Copenhagen, Denmark in Sept 2023.
Competing for Kids: An Exploration in Marketing Pediatric Healthcare
Creators: name: Powell, Tyler
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Several research studies have analyzed why patients choose one physician over another. Each of these studies has focused on how consumers choose their own providers, however. When a parent selects a doctor for their child, do they follow a different decision-making process? The purpose of my research is to analyze how factors implicated in prior physician-choice studies influence parents as they choose physicians for their children.
This study asked employees of the University of North Carolina at Chapel Hill to rate the degree of influence that four variables- a physician’s proximity, reputation, race, and gender- had over the selection of their child’s most recent pediatrician and specialist. A physician’s reputation was found to be the most important variable for both a pediatrician and specialist. Proximity to a physician’s office was more important for a pediatrician than for a specialist, while gender and race were considered moderately important and unimportant, respectively.
MS Gr. class. c. 6 1479
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 fr. 10. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
แบบจำลองกำหนดการเชิงเส้นจำนวนเต็มสำหรับการวางแผนจัดสรรตะกร้าผักอินทรีย์ของระบบเกษตรกรรมที่สนับสนุนโดยชุมชน กรณีศึกษา บริษัทจัดจำหน่ายผลผลิตเกษตรอินทรีย์
Creators: name: อภิชัย ฤตวิรุฬห์
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2023
Subjects: Allocation Planning
Integer Linear Programming
Community Supported Agriculture (CSA)

description: KMUTT Research and Development Journal, 46, 1, 19-36
Unusual Sensitivity of Superconductivity to Strain in Iron-Based 122 Superconductors
Creators: name: Kim, J. S.
name: Tam, G. N.
name: Stewart, G. R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Co-doped BaFe2As2 has been previously shown to have an unusually significant improvement of Tc (up to 2 K, or almost 10%) with annealing 1-2 weeks at 700 or 800 C, where such annealing conditions are insufficient to allow significant atomic diffusion. While confirming similar behavior in optimally Co-doped SrFe2As2 samples, the influence on Tc of strain induced by grinding to ~50 micron sized particles, followed by pressing the powder into a pellet using 10 kbar pressure, was found to increase the annealed transition width of 1.5 K by approximately a factor of ten. Also, the bulk discontinuity in the specific heat at Tc, deltaC, on the same pellet sample was completely suppressed by grinding. This evidence for a strong sensitivity of superconductivity to strain was used to optimize single crystal growth of Co-doped BaFe2As2. This strong dependence (both positive via annealing and negative via grinding) of superconductivity on strain in these two iron based 122 structure superconductors is compared to the unconventional heavy Fermion superconductor UPt3, where grinding is known to completely suppress superconductivity, and to recent reports of strong sensitivity of Tc to damage induced by electron-irradiation-induced point defects in other 122 structure iron-based superconductors, Ba(Fe0.76Ru0.24)2As2 and Ba1-xKxFe2As2. Both the electron irradiation and the introduction of strain by grinding are believed to only introduce non-magnetic defects, and argue for unconventional superconducting pairing.
Filologia (computazionale) basata su Domain Specific Languages
Creators: name: Zenzaro, Simone
Publisher: name: Zenodo
Year: 2023
Subjects: Digital Humanities
Digital Papyrology
885222-GreekSchools
Computational Philology
GreekSchools
CNR-ILC

description: La filologia tradizionale ha definito i propri metodi per lo studio dei testi che, nel tempo, si sono cristallizzati in pratiche rigorose e specifiche per diversi settori disciplinari: papirologia, epigrafia, filologia classica, biblica, germanica, romanza, etc.
 D’altro canto, l’avvento della filologia computazionale sta cambiando il paradigma di lavoro tradizionale proponendo nuove modalità di analisi. Indagando il rapporto fra i metodi tradizionali e gli approcci computazionali, presentiamo una metodologia di studio e trattamento del testo, elaborata e sviluppata dal CoPhiLab, che preservi il più possibile l’integrità dei processi ecdotici ed ermeneutici tradizionali arricchendoli con le potenzialità derivate dal digitale attraverso la definizione di Domain Specific Languages (DSLs) e la creazione di una piattaforma collaborativa e cooperativa. Il progetto ERC Advanced Grant 885222-GreekSchools ci fornisce l’opportunità di mostrare tale metodologia applicata all’edizione scientifica digitale nel campo della papirologia computazionale.
Sex Differences in Addiction: The Effects of Cocaine Self-Administration and Abstinence on Astrocytes in the Nucleus Accumbens of Female Rats
Creators: name: Brown, Natalie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Astrocytes are the most numerous glial cell of the brain, and are implicated in various psychiatric disorders including addiction. Previous research on male rats demonstrates cocaine-induced changes in surface area, volume, and synaptic colocalization in astrocytes of the nucleus accumbens (NAc), a reward center of the brain. However, it is unknown whether the effects of cocaine on astrocytes in male rats are also observed in females. Thus, the goal of my Honors Thesis was to test the hypothesis that prolonged abstinence following cocaine self-administration (SA) would lead to a reduction in morphometric features and synaptic colocalization of NAc astrocytes in female rats. Twenty-four female Sprague-Dawley rats underwent 10-days of long-access (6 h/day) self-administration of cocaine or saline, followed by 45 days of abstinence. Fluorescently-labelled astrocytes in the NAc were imaged and analyzed for morphological properties and synaptic colocalization. My results revealed no significant differences between saline and cocaine groups in astrocyte morphology and synaptic contact, suggesting the effects of cocaine on astrocytes in male rats do not extend to females. This study demonstrates a sex difference in the cellular effects of cocaine self-administration, and indicates that female astrocytes may display protective factors against cocaine-induced astrocyte retraction.
Lambda Bootis stars in the SuperWASP survey
Creators: name: Paunzen, E.
name: Skarka, M.
name: Walczak, P.
name: Holdsworth, D. L.
name: Smalley, B.
name: West, R. G.
name: Janik, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have analysed around 170 000 individual photometric WASP measurements of 15 well established lambda Bootis stars to search for variability. The lambda Bootis stars are a small group of late-B to early-F, Pop. I, stars that show moderate to extreme (surface) underabundances (up to a factor 100) of most Fe-peak elements, but solar abundances of lighter elements (C, N, O and S). They are excellent laboratories for the study of fundamental astrophysical processes such as diffusion, meridional circulation, stellar winds, and accretion in the presence of pulsation. From the 15 targets, eight are variable and seven are apparently constant with upper limits between 0.8 and 3.0 mmag. We present a detailed time series analysis and a comparison with previously published results. From an asteroseismologic study we conclude that the found chemical peculiarities are most probably restricted to the surface.
description: Accepted by MNRAS, 8 pages, 6 figures, and 2 tables
วงจรแปลงผันไฟฟ้ากระแสสลับโดยตรงหนึ่งเฟสที่ปราศจากวงจรเชื่อมโยงไฟฟ้ากระแสตรงที่ทดสอบกับภาระแบบพาสซีฟ
Creators: name: ประสพโชค โห้ทองคำ
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2023
Subjects: Single-Phase AC-AC Converter
Single-Phase Matrix Converter
Sinusoidal PWM

description: KMUTT Research and Development Journal, 46, 1, 37-54
การผลิตเอทานอลที่มีความบริสุทธิ์สูงจากหญ้าเนเปียร์ที่มีการปรับสภาพ
Creators: name: ภัทรมาศ  เทียมเงิน
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2023
Subjects: Ethanol
Napier Grass
Saccharomyces Cerevisiae
Crude Enzyme
Molecular Sieve

description: KMUTT Research and Development Journal, 46, 1, 55-66
Duty to Defend: McNeill Smith and the Education of Southern White Liberalism
Creators: name: Crook, Katherine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: This thesis explores how McNeill Smith navigated the politically charged conservative atmosphere of North Carolina in the 1950s and early 1960s while adhering to his liberal beliefs. Smith stood for many liberal values, including internationalism and disarmament during the Cold War, civil liberties for Communists, and civil rights for African Americans. However, if the lessons of Henry Wallace and Frank Porter Graham taught him anything, Smith understood that he could not openly divulge his liberal and sometimes leftist leanings. Though not running for political office, he faced alienation from his community and even threats should he advocate for issues like free speech for a Communist or integration. Instead, Smith used such tactics as conservative rhetoric, appealing to a latent liberal base, and state’s rights and localism arguments to push for equal civil rights for all North Carolinians.
MS Gr. class. c. 6 1480
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 1. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Rigid Unit Modes in $sp$-$sp^2$ Hybridized Carbon Systems: Origin of Negative Thermal Expansion
Creators: name: Kim, Cheol-Woon
name: Kang, Seoung-Hun
name: Kwon, Young-Kyun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using density functional theory combined with quasi-harmonic approximation, we investigate the thermal expansion behaviors of three different types (α, β, and γ) of graphyne which is a two-dimensional carbon allotrope composed of sp and $sp^2$ bonds. For each type of graphyne, we obtain the temperature dependent area variation by minimizing its free energy as a function of temperature, which is calculated by considering all the phonon modes in the whole Brillouin zone. We find that all three types of graphyne exhibit negative in-plane thermal expansion up to $T\lesssim1000$ K. The observed in-plane thermal contraction can be attributed partially to the ripple effect, similarly in graphene. The ripple effect itself, however, is not sufficient to explain anomalously larger thermal contraction found in graphyne than in graphene. Our deliberate analysis on the phonon modes observed in graphyne enables us to discover another source causing such thermal expansion anomaly. We find that there are particular phonon modes with frequencies around a few hundreds of cm$^{-1}$ existing exclusively in graphyne that may fill empty spaces resulting in area reduction. These modes are identified as "rigid unit modes" corresponding to the libration of each rigid unit composed of $sp^2$ bonds.
description: 15 pages, 5 figures
แบบจำลองระบบโครงข่ายท่อประปาของการประปานครหลวง
Creators: name: เหมือนมาศ  วิเชียรสินธุ์
Publisher: name: King Mongkut’s University of Technology Thonburi
Year: 2023
Subjects: Water Distribution Network Model
EPANET
ArcMap
Maha Sawat
Bang Bua Thong

description: KMUTT Research and Development Journal, 46, 1, 67-79
DNA Methylation is associated with gene expression changes in sporadic Parkinson Disease in the PPMI cohort
Creators: name: Gonzalex-Latapi, Paulina
name: Bustos, Bernabe
name: Simuni, Tanya
name: Krainc, Dimitri
Publisher: name: Zenodo
Year: 2023
Subjects: PPMI
DNA Methylation
Gene Expression
Parkinson's Disease

description: Objective: To compare baseline whole blood DNA methylation in unmedicated sporadic Parkinson Disease (sPD) and healthy control (HC) participants from PPMI. To evaluate whole blood gene expression from candidate genes in differentially methylated regions from PD subjects and HC subjects. This poster was presented in the Movement Disorders Society Conference held in Copenhagen, Denmark in Sept 2023.
Flue-Cured Tobacco Production Costs
Creators: name: Grise, Verner N.
name: Grise, Verner N.
Publisher: name: Unknown
Year: 1981
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Farm Management
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Production Economics
subject: Research and Development/Tech Change/Emerging Technologies
subject: flue-cured tobacco
subject: production costs
subject: tobacco acreage
subject: tobacco harvesting system

description: Excluding land and quota costs, it cost $1,612 per acre, or $85 per 100 pounds, to produce flue-cured tobacco in 1979. Including land and quota pushed total costs to $2,300 per acre or $121 per 100 pounds when land and quota values were based on average net share rent paid. Production costs, excluding land and quota, were highest in the Piedmont region of North Carolina and Virginia. Costs were also higher on farms with small acreages of tobacco than on larger farms that used more mechanized harvest systems. This study examines national and regional costs on farms with various acreages of tobacco, and costs under different methods of harvesting tobacco.
Cotton Quality Evaluation: Testing Methods and Use
Creators: name: Glade, Edward H.
name: Collins, Keith J.
name: Rogers, Clarence D.
name: Glade, Edward H.
name: Collins, Keith J.
name: Rogers, Clarence D.
Publisher: name: Unknown
Year: 1981
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies
subject: cotton
subject: quality measurement
subject: fiber properties

description: Cotton quality characteristics are increasingly measured by instruments rather than manually. Increased competition in the industry, consumer demand for a wider range of products, and more stringent standards for product use have prompted more intensive fiber quality examination. Over 92 percent of textile firms surveyed own one or more fiber testing instruments. Ninety percent own instruments for testing fineness and maturity, 70 percent for measuring length and length uniformity, and 60 percent for determining fiber strength. This report presents information on the determination and use of cotton quality measures, and the development of high volume instrument testing systems.
Virial Coefficients of 3-Flavor Fermionic Systems with Three-Body Contact Interactions in the Lattice Semi-Classical Approximation at Leading Order
Creators: name: Czejdo, Aleksander
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Many of the interactions in classical and quantum systems are in the form of two-body forces, or sums of these forces.  There exist a number of systems with non-additive forces, or three-body interactions.  These come naturally in some effective field theories when the two-body interactions are insufficient alone, or in some cases like Efimov states, where the two-body interaction is suppressed and only bound trimers exist.  Further, thermal properties of these systems are critical to understanding experimental data and verifying models.  The virial expansion is a correction to the ideal gas law to relate thermal properties to the quantum statistical properties of Fermi gasses.  In this work, the calculations of virial coefficients up to order 8 of a Fermi gas using a lattice semi-classical approximation are described.  A number of computational processing tools were used, such as the python graph theory library, networkx, and the high-energy physics algebra code, FORM.
Quasi one-dimensional Bose-Einstein condensate in gravito-optical surface trap
Creators: name: Akram, Javed
name: Girodias, Benjamin
name: Pelster, Axel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study both static and dynamic properties of a weakly interacting Bose-Einstein condensate (BEC) in a quasi one-dimensional gravito-optical surface trap, where the downward pull of gravity is compensated by the exponentially decaying potential of an evanescent wave. First, we work out approximate solutions of the Gross-Pitaevskii equation for both a small number of atoms using a Gaussian ansatz and a larger number of atoms using the Thomas-Fermi limit. Then we confirm the accuracy of these analytical solutions by comparing them to numerical results. From there, we numerically analyze how the BEC cloud expands non-ballistically, when the confining evanescent laser beam is shut off, showing agreement between our theoretical and previous experimental results. Furthermore, we analyze how the BEC cloud expands non-ballistically due to gravity after switching off the evanescent laser field in the presence of a hard-wall mirror. There we find that the BEC shows significant self-interference patterns for a large number of atoms, whereas for a small number of atoms, a revival of the BEC wave packet with few matter-wave interference patterns is observed.
Circle packing inside a regular hexagon: supplemental material
Creators: name: Amore, Paolo
Publisher: name: Zenodo
Year: 2022
Subjects: circle packing
constrained optimization

description: We report the dense configurations of 2 ≤ N ≤ 400 congruent disks packed inside a regular hexagon obtained using the algorithms developed by the author
description: added 5 tables; data of the configurations made available at zenodo
All the Evil of Good: Portrayals of Police and Crime in Japanese Anime and Manga
Creators: name: Mitchell, Katelyn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: This thesis examines and categorizes the distinct, primarily negative, portrayals of law enforcement in Japanese literature and media, beginning with its roots in kabuki drama, courtroom narratives and samurai codes and tracing it through modern anime and manga. Portrayals of police characters are divided into three distinct categories: incompetents used as a source of comedy; bland and consistently unsuccessful nemeses to charismatic criminals, used to encourage the audience to support and favor these criminals; or cold antagonists fanatically devoted to their personal definition of ‘justice’, who cause audiences to question the system that created them. This paper also examines Western influences, such as Arthur Conan Doyle’s Sherlock Holmes and Victor Hugo’s Inspector Javert, on these modern media portrayals. It also examines the contradictions between these negative, antagonistic characters and existing facts and statistics – Japan’s low crime rate and generally high reports of civilian satisfaction with the police. This research will contribute to the growing field of Japanese cultural studies, examining a number of influential anime and manga as well as how they both affect and reflect society’s opinions. With civilians’ images of police currently undergoing major changes, this research will help in understanding the role fiction plays in defining the relationship between a country’s people, its laws, and its law enforcement.
MS Gr. class. c. 6 1481
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 2. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
MPEC 2023-F155 : 2023 FP4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FP4

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.
Moral Cliff: The Discontinuity of Moral Judgment
Creators: name: Uhlman, Rachel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Although many aspects of life exist on a continuum (e.g., color, intelligence, skin pigmentation),
distinct classifications are made to distinguish between different categories of each concept.
Moral judgments are similarly split; instead of a smooth continuum from good to evil, the moral
landscape is perceived as discontinuous. A series of five online studies examine the discontinuity
of moral judgments. Non-moral judgments of intimacy, pain, theft, fetal development and torture
were predicted to follow a linear trend while moral judgments of these actions were predicted to
be curvilinear. The studies demonstrate that moral judgments of intimacy, fetal development and
torture are discontinuous; a moral cliff exists where the judgment of certain actions changes from
good to bad. Possible mechanisms and implications responsible for the moral cliff include moral
polarization, moral convictions and the idea of a slippery slope of morality.
Transforming Lives: the positive impact of school retention strategies on the probability of students’ dropout in Medellin
Creators: name: Arango-Ramirez, Natalia
name: Camacho Murillo, Giovanni Andrés
Publisher: name: Universidad Externado de Colombia. Facultad de Economía.
Year: 2024
Subjects: subject: Deserción escolar - Medellin (Colombia)
subject: Trasaporte de escolares - Medellin (Colombia)
subject: Alimentos para escolares - Medellin (Colombia) - Programas
subject: School Dropout
subject: School Meals Program
subject: School Transportation Program
subject: Complementary School Day
subject: Scobit Model

description: Este estudio evalúa el efecto de las estrategias de retención escolar sobre la probabilidad de deserción estudiantil en Medellín, Colombia. El modelo scobit se estima utilizando microdatos de matrícula consolidados por el Ministerio de Educación Nacional y datos de beneficiarios de programas de retención escolar, año 2019. Los resultados muestran que los estudiantes con acceso al Programa de Alimentación Escolar, Programa de Transporte Escolar y/o Programa de Jornada Escolar Complementaria reducen la probabilidad de deserción escolar en 6,62 pp, 1,64 pp y 2,84 pp, respectivamente. Sin embargo, el estudio encuentra efectos heterogéneos significativos en torno a los programas de retención escolar que se explican por la clase social, la nacionalidad y el sexo de los estudiantes.
description: This study assesses the effect of school retention strategies on the probability of school dropout in Medellin, Colombia. The scobit model is estimated using microdata on enrollment consolidated by the Ministry of National Education and data on beneficiaries of school retention programs, year 2019. Results show that the students with access to the School Meals Program, School Transportation Program, and/or Complementary School Day Program reduce the probability of dropping out by 6.62 pp, 1.64 pp, and 2.84 pp, respectively. However, the study finds significant heterogeneous effects around school retention programs that are explained by students’ social class, nationality, and sex.
title: Exploring the associations between psychodynamic constructs and psychopathology: A network approach
Creators: name: Vierl, Larissa
name: Juen, Florian
name: Benecke, Cord
name: Hörz-Sagstetter, Susanne
Publisher: name: Universität Kassel
Year: 2022
Subjects: subject: 150
subject: Psychopathologie
subject: Psychodynamik
subject: Psychotherapie

description: Gefördert im Rahmen des Projekts DEAL
Young Galaxy Candidates in the Hubble Frontier Fields. II. MACS,J0416-2403
Creators: name: Infante, Leopoldo
name: Zheng, Wei
name: Laporte, Nicolas
name: Troncoso, Paulina
name: Molino, Alberto
name: Diego, Jose M.
name: Bauer, Franz E.
name: Zitrin, Adi
name: Moustakas, John
name: Huang, Xingxing
name: Shu, Xinwen
name: Bina, David
name: Brammer, Gabriel B.
name: Broadhurst, Tom
name: Ford, Holland C.
name: Garcia, Stefano
name: Kim, Sam
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We searched for z > 7 Lyman-break galaxies (LBGs) in the optical-to-mid-infrared Hubble Frontier Field and associated parallel field observations of the strong-lensing cluster MACS J0416-2403. We discovered 22 candidates, of which six lie at z > 9 and one lies at z > 10. Based on the Hubble and Spitzer photometry, all have secure photometric redshifts and a negligible probability of being at lower redshifts, according to their peak probability ratios, R. This substantial increase in the number of known high-redshift galaxies allows a solid determination of the luminosity function at z > 8. The number of high-z candidates in the parallel field is considerably higher than that in the Abell 2744 parallel field. Our candidates have median stellar masses of log(M_*) ~ 8.40^{+0.55}_{-0.31}~Msun, SFRs of ~ 1.6^{+0.5}_{-0.4} Msun yr^-1, and SFR-weighted ages of < 310^{+70}_{-140} Myr. Finally, we are able to put strong constraints on the z = 7,8,9 and 10 luminosity functions. One of the objects in the cluster field is a z ~ 10 candidate, with a magnification of mu ~ 20 +- 13. This object is likely the faintest z ~ 10 object known to date, allowing a first look into the extreme faint-end (L ~ 0.04L*) of the z ~ 10 luminosity function.
description: Accepted for publication in the ApJ
Data and Analysis Scripts
Creators: name: Morey, Candice
Publisher: name: Open Science Framework
Year: 2022

description: extentColorBonus.html is a summary document (read-only) that provides the analyses and code (which can be toggled on or off). To view, download and open in a web browser. Data files: 1. VisGroups3_anon.csv: Behavioral responses 2. visReps3_presentation_iaReport.txt: interest area report output from EyeLink's data viewer for fixations during the stimulus presentation interval 3. visReps3_retention_iaReport.txt: interest area report output from EyeLink's data viewer for fixations during the retention interval 4. visRepsPush_Samples.Rdata: processed pupil size measurements Analysis script: extentColorBonus.Rmd is the editable R markdown file that include the analysis scripts. Whenever possible, I have called data or analysis objects from OSF. For some (see comments) they must be downloaded and called locally. Output objects: 1. wombatOut.txt is the WoMMBAT output from the hierarchical Bayesian models of capacity. 2. fullAna_ksYoung.txt and fullAna_ksOld.txt are the ks, etc. derived from the WoMMBAT output. 3. lookAtReps_stim.Rdata, lookAtReps_ret.Rdata, bfTimePres.Rdata, and bfTimeRet.Rdata are the BF ANOVA objects containing saved output. 4. pupilD_model.Rdata is the BF mixed linear model object from the pupillary analysis.
Characterization of single-nucleotide polymorphisms implicated in the pathogenesis of Crohn's disease
Creators: name: Whitley, Julia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: The inflammatory bowel diseases (IBD) are a group of chronic inflammatory conditions
involving the gastrointestinal tract. IBD affects between 1 and 2 million Americans, and its incidence is increasing for unknown reasons. One of the predominant forms of IBD is Crohn’s disease (CD). Genome-wide association studies (GWAS) have linked many single-nucleotide polymorphisms (SNPs) within genes of the immune system to CD pathogenesis, but it is unknown which of these SNPs are causative. In genetically susceptible individuals, CD can result from a disruption in the balance between pro-inflammatory and anti-inflammatory gene expression in intestinal immune cells. Gene expression is partially regulated by the binding of transcription factors to DNA to either activate or repress target genes. The ability of transcription factors to bind to DNA may be influenced by chromatin accessibility. To determine the location of accessible, or “open” chromatin regions in the genome, we used Formaldehyde-Assisted Isolation of Regulatory Elements (FAIRE). Many of these open chromatin regions were located near genes involved in immune system function. A subset of these open chromatin regions
overlapped with CD-associated SNPs. I used luciferase reporter assays to determine the potential regulatory function of a CD-linked SNP found in a region of open chromatin. Understanding the function of disease-associated genetic variants will elucidate the importance of genetic susceptibility in CD pathogenesis.
MS Gr. class. c. 6 1482
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 3. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Gaussian mixture model for event recognition in optical time-domain reflectometry based sensing systems
Creators: name: Fedorov, Aleksey
name: Anufriev, Maxim
name: Zhirnov, Andrey
name: Stepanov, Konstantin
name: Nesterov, Evgeniy
name: Namiot, Dmitry
name: Karasik, Valery
name: Pnev, Alexey
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We propose a novel approach to the recognition of particular classes of non-conventional events in signals from phase-sensitive optical time-domain-reflectometry-based sensors. Our algorithmic solution has two main features: filtering aimed at the de-nosing of signals and a Gaussian mixture model to cluster them. We test the proposed algorithm using experimentally measured signals. The results show that two classes of events can be distinguished with the best-case recognition probability close to 0.9 at sufficient numbers of training samples.
description: 4 pages; published version
The Timing of Marriage Matching
Creators: name: Li, Jiaxi
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Marriage is a crucial social phenomenon associated with almost every human’s life. However, it has been a well-known social phenomenon that people are delaying their first marriage. In this paper, I will apply matching theory to discuss some possible reasons for this change of marriage timing, namely change of discounting. I will also introduce asymmetry to the model. This will potentially answer questions about marriage matching in countries with high sex ratio. The result shows that decrease penalty for delaying marriage and the increase in sex ratio can both contribute to the delay of marriage.
Clinical And Biomarkers Characteristics Of Non-manifesting GBA1 N409S Carriers: The PPMI Cohort
Creators: name: Gonzalez-Latapi, Paulina
name: Brumm, Michael
name: Gochanour, Caroline
name: Caspell-Garcia, Chelsea
name: Cho, Hyunkeun
name: Alcalay, Roy
name: Merchant, Kalpana
name: Simuni, Tanya
Publisher: name: Zenodo
Year: 2023
Subjects: PPMI
GBA1
N409S

description: Objective: We aim to assess longitudinal change up to 5 years in clinical, DAT and biological characteristics of the GBA1 NMC compared to healthy controls. This poster was presented in the Movement Disorders Society Conference held in Copenhagen, Denmark in Sept 2023.
MPEC 2023-F156 : 2023 FQ4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FQ4

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.
Circle packing inside a regular heptagon: supplemental material
Creators: name: Amore, Paolo
Publisher: name: Zenodo
Year: 2022
Subjects: circle packing
constrained optimization

description: We report the configurations of 2 ≤ N ≤ 200 congruent disks packed inside a regular heptagon obtained using the algorithms developed by the author
description: added 3 tables; data of the configurations made available at zenodo
On the Besov Regularity of Periodic Lévy Noises
Creators: name: Fageot, Julien
name: Unser, Michael
name: Ward, John Paul
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G05, 60G17, 60G20, 60G52, 60H40, 42C40, 46E35

description: In this paper, we study the Besov regularity of Lévy white noises on the $d$-dimensional torus. Due to their rough sample paths, the white noises that we consider are defined as generalized stochastic fields. We, initially, obtain regularity results for general Lévy white noises. Then, we focus on two subclasses of noises: compound Poisson and symmetric-$α$-stable (including Gaussian), for which we make more precise statements. Before measuring regularity, we show that the question is well-posed; we prove that Besov spaces are in the cylindrical $σ$-field of the space of generalized functions. These results pave the way to the characterization of the $n$-term wavelet approximation properties of stochastic processes.
description: 24 pages
title: Islam and Images
Creators: name: Silveirinha Castello Branco, Patrícia
name: Dias Branco, Sérgio
name: Saeed Zeydabadi-Nejad
Publisher: name: IFILNOVA - NOVA FCSH
Year: 2017

description: This issue aims at discussing and analysing Islamic art and aesthetics, with a special focus on the “modes of sense perception” embodied in particular images, taken politically as forms of organization, encompassing forms of visibility, ways of doing and making, and ways of conceptualizing.
description: Patrícia Silveirinha Castello Branco, Saeed Zeydabadi-Nejad, and Sérgio Dias Branco (eds), “Islam and Images,” Cinema: Journal of Philosophy and the Moving Image vol.9 (2017)
description: ISSN: 1647-8991
A Journey of Black Identity: A Middle School Perspective
Creators: name: Brooks, Schara
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: According to an article in the Huffington Post, 40% of students expelled from U.S
schools each year are black. Black students are twice as likely to not graduate high school as their white classmates. The national center for education statistics reports that in North Carolina alone 6,553 black students dropped out of high school in their 9th grade year and a significantly greater amount did not continue on to a post-secondary education. The things that are portrayed through these statics are part of the everyday lives of many African American youth, but why is it that statistics like these have become the norm? What is it that perpetuates these events in black society? My suggestion is by taking a holistic approach in understanding the black identity, that much of this can be addressed. Through my research and gathered data I hope to illuminate the racial identity development of African American youth as I have observed in African American middle school students. My approach is to search for, not only the meanings of blackness within the black community, but how being black is interpreted
by the rest of society at such an impressionable age. The combination of both internal blackness and how others perceive blackness plays an imperative role on how African American students,view themselves, their education, and the outlook of their future in a predominantly white society. These dynamics become evident through my research of various middle schools across Durham, North Carolina.
MS Gr. class. c. 6 1483
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 4. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
An Alternative Approach to Food Assistance: Categorical Grants
Creators: name: Longen, Kathryn A.
name: Claffey, Barbara A.
name: Longen, Kathryn A.
name: Claffey, Barbara A.
Publisher: name: Unknown
Year: 1981
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: Public Economics
subject: Research Methods/ Statistical Methods
subject: food stamps
subject: categorical grant
subject: funding formulas
subject: appropriation
subject: State administration

description: A categorical grant is one alternative for modifying the Food Stamp Program (FSP) as pressures mount for restraining the growth of Federal expenditures for public assistance programs. Use of a categorical grant, a State-administered and federally financed program benefiting a single activity or group, would require a formula to assure equitable distribution of funds. This report highlights five formulas, using 1979 data to assess effects on program benefits and recipients. Some States would get less funding under any of the formulas.
MPEC 2023-F157 : 2023 FR4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FR4

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.
Flare Footpoint Regions and a Surge Observed by the Hinode/EUV Imaging Spectrometer (EIS), RHESSI, and SDO/AIA
Creators: name: Doschek, George A.
name: Warren, Harry P.
name: Dennis, Brian R.
name: Reep, Jeffrey W.
name: Caspi, Amir
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The Extreme-ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft observed flare footpoint regions coincident with a surge for a M3.7 flare observed on 25 September 2011 at N12 E33 in active region 11302. The flare was observed in spectral lines of O VI, Fe X, Fe XII, Fe XIV, Fe XV, Fe XVI, Fe XVII, Fe XXIII and Fe XXIV. The EIS observations were made coincident with hard X-ray bursts observed by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI). Overlays of the RHESSI images on the EIS raster images at different wavelengths show a spatial coincidence of features in the RHESSI images with the EIS upflow and downflow regions, as well as loop-top or near-loop-top regions. A complex array of phenomena was observed including multiple evaporation regions and the surge, which was also observed by the Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) telescopes. The slit of the EIS spectrometer covered several flare footpoint regions from which evaporative upflows in Fe XXIII and Fe XXIV lines were observed with Doppler speeds greater than 500 km s$^{-1}$. For ions such as Fe XV both evaporative outflows (~200 km s$^{-1}$) and downflows (~30-50 km s$^{-1}$) were observed. Non-thermal motions from 120 to 300 km s$^{-1}$ were measured in flare lines. In the surge, Doppler speeds are found from about 0 to over 250 km s$^{-1}$ in lines from ions such as Fe XIV. The non-thermal motions could be due to multiple sources slightly Doppler-shifted from each other or turbulence in the evaporating plasma. We estimate the energetics of the hard X-ray burst and obtain a total flare energy in accelerated electrons of $\geq7\times10^{28}$ ergs. This is a lower limit because only an upper limit can be determined for the low energy cutoff to the electron spectrum. We find that detailed modeling of this event would require a multi-threaded model due to its complexity.
description: 42 pages, 18 figures
Metabolic reprogramming underlies differential effects of folate depletion in non-metastatic and metastatic claudin-low breast cancer
Creators: name: Chen, Xuewen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Cells undergo metabolic reprogramming during oncogenic transformation and cancer progression. Folate one-carbon cycle plays an important role in providing the necessary substrates for proliferating cancer cells. Aberrant folate metabolism has been implicated in the development of several cancer types, though underlying mechanisms remain unclear. Our lab has previously demonstrated that a folate-restricted diet increased the growth and invasion of orthotopically transplanted murine non-metastatic mesenchymal claudin-low breast cancer cells (M-Wnt) in vivo. In contrast, it decreased the growth and lung metastasis of transplanted metM-Wntlung cells, a metastatic subclone of the M-Wnt tumor. The current study explored whether metabolic reprogramming of the two cell lines affects their differential response to folate withdrawal. The non-metastatic and metastatic cells differed in several metabolic pathways, including energetics and autophagy. To examine the effect of long-term folate depletion on M-Wnt and metM-Wntlung cell metabolism in vitro, the two cell lines were grown in standard or folate-depleted media for 14 days. Both M-Wnt and metM-Wntlung cells exhibited increased autophagy and oxidative stress following long-term folate depletion. However, following long-term folate depletion, only metM-Wntlung cells showed decreased viability and increased apoptosis. These results suggest that these cells underwent metabolic reprogramming in response to nutrient stress. While the non-metastatic M-Wnt cells were able to withstand nutrient starvation through adaptation involving glutathione metabolism and autophagy, the metastatic cells were less adaptable, and thus folate restriction prevented their growth. This study highlighted that metabolic reprogramming during tumor progression to metastasis may change cells’ adaptability under nutrient stress, and folate restriction as a nutrient stress can assess tumors’ metabolic phenotypes.
Accelerated dimension-independent adaptive Metropolis
Creators: name: Chen, Yuxin
name: Keyes, David
name: Law, Kody J. H.
name: Ltaief, Hatem
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation (stat.CO)
subject: Probability (math.PR)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This work considers black-box Bayesian inference over high-dimensional parameter spaces. The well-known adaptive Metropolis (AM) algorithm of (Haario etal. 2001) is extended herein to scale asymptotically uniformly with respect to the underlying parameter dimension for Gaussian targets, by respecting the variance of the target. The resulting algorithm, referred to as the dimension-independent adaptive Metropolis (DIAM) algorithm, also shows improved performance with respect to adaptive Metropolis on non-Gaussian targets. This algorithm is further improved, and the possibility of probing high-dimensional targets is enabled, via GPU-accelerated numerical libraries and periodically synchronized concurrent chains (justified a posteriori). Asymptotically in dimension, this GPU implementation exhibits a factor of four improvement versus a competitive CPU-based Intel MKL parallel version alone. Strong scaling to concurrent chains is exhibited, through a combination of longer time per sample batch (weak scaling) and yet fewer necessary samples to convergence. The algorithm performance is illustrated on several Gaussian and non-Gaussian target examples, in which the dimension may be in excess of one thousand.
Constraints on modified Gauss-Bonnet gravity during big bang nucleosynthesis
Creators: name: Kusakabe, Motohiko
name: Koh, Seoktae
name: Kim, K. S.
name: Cheoun, Myung-Ki
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The modified gravity is considered to be one of possible explanations of the accelerated expansions of the present and the early universe. We study effects of the modified gravity on big bang nucleosynthesis (BBN). If effects of the modified gravity are significant during the BBN epoch, they should be observed as changes of primordial light element abundances. We assume a $f(G)$ term with the Gauss-Bonnet term $G$, during the BBN epoch. A power-law relation of $df/dG \propto t^p$ where $t$ is the cosmic time was assumed for the function $f(G)$ as an example case. We solve time evolutions of physical variables during BBN in the $f(G)$ gravity model numerically, and analyzed calculated results. It is found that a proper solution for the cosmic expansion rate can be lost in some parameter region. In addition, we show that calculated results of primordial light element abundances can be significantly different from observational data. Especially, observational limits on primordial D abundance leads to the strongest constraint on the $f(G)$ gravity. We then derive constraints on parameters of the $f(G)$ gravity taking into account the existence of the solution of expansion rate and final light element abundances.
description: 29 pages, 24 figures
MS Gr. class. c. 6 1484
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 5. Philodemus, De rhetorica 2
Drawing by G.B. Malesci