cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$\mathcal{PT}$ symmetry breaking for the scattering problem in a one-dimensional non-Hermitian lattice model
Creators: name: Zhu, Baogang
name: Lü, Rong
name: Chen, Shu
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the $\mathcal{PT} $-symmetry breaking for the scattering problem in a one-dimensional (1D) non-Hermitian tight-binding lattice model with balanced gain and loss distributed on two adjacent sites. In the scattering process the system undergoes a transition from the exact $\mathcal{PT} $-symmetry phase to the phase with spontaneously breaking $\mathcal{PT} $-symmetry as the amplitude of complex potentials increases. Using the S-matrix method, we derive an exact discriminant, which can be used to distinguish different symmetry phases, and analytically determine the exceptional point for the symmetry breaking. In the $\mathcal{PT} $-symmetry breaking region, we also confirm the appearance of the unique feature, i.e., the coherent perfect absorption Laser, in this simple non-Hermitian lattice model. The study of the scattering problem of such a simple model provides an additional way to unveil the physical effect of non-Hermitian $\mathcal{PT} $-symmetric potentials.
description: 6 pages, 3 figures
Economic Inequality and Innovative Thoughts
Creators: name: Altieri, Chloe
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Economic inequality has been rising globally over the past 30 years. Higher rates of economic inequality have been linked to more negative health and social outcomes such as teen pregnancy, violent crime, alcoholism, and infant mortality. Previous work demonstrated that one avenue by which high inequality causes poor outcomes is through an increased propensity to engage in risky behavior. We were interested in what types of risks people would be more inclined to take. The current study sought to understand how economic inequality affects an individual’s ability to creatively think. Which in turn has an effect on the economy and the cycle of inequality. The sample included 149 individuals that were recruited through the Amazon Mechanical Turk system. The study presented as a game in which participants had to solve word puzzles under conditions of high or low inequality. The word puzzles were trials of the Remote Associates Test (RAT). Results indicated that individuals had more correct responses to the RAT when they were in the high inequality condition, suggesting that convergent creativity is benefitted by higher levels of inequality.
Cell Phone-Induced Ostracism Threatens Fundamental Needs
Creators: name: Hales, Andrew
name: Dvir, Maayan
name: Wesselmann, Eric
name: Kruger, Daniel
name: Finkenauer, Catrin
Publisher: name: Open Science Framework
Year: 2022

description: These studies are part of a special issue in The Journal of Social Psychology entitled Interpersonal Relationships in the Digital Age.
Data processing and statistical analysis of the SUSTAINOLIVE olive farmers´ surveys
Creators: name: Gallego, Jose Lietor
Publisher: name: Zenodo
Year: 2021
Subjects: Olive industry
Olive farming
Surveys
Statistical analysis

description: During the first phase of the SUSTAINOLIVE project, around 600 surveys were completed by olive farmers from 6 countries in the Mediterranean basin. The results of this huge amount of information were statistically processed and collected in this Excel book.
Condensation of fermion zero modes in the vortex in nodal superfluids/superconductors
Creators: name: Volovik, G. E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The energy levels of the fermions bound to the vortex are considered for vortices in the superfluid/superconducting systems which contain the symmetry protected plane of zeroes in the gap function in bulk. The Caroli-de Gennes-Matricon branches with different angular momentum quantum number $n$ approach zero energy level at $p_z\rightarrow 0$. Such condensation of the energy levels is the consequence of the bulk-vortex correspondence in topological superfluids/superconductors. In a given case this is the connection between the Dirac line of zeroes in the bulk spectrum and the level condensation in the vortex core. The density of states of the bound fermions diverges at zero energy giving rise to the $\sqrtΩ$ dependence of DoS in the polar phase of superfluid $^3$He rotating with the angular velocity $Ω$ and to the $\sqrt{B}$ dependence of DoS for superconductors in the $(d_{xz} + i d_{yz})$-wave pairing state.
description: 5 pages, 2 figures, references added
Novel Collective Phenomena in High-Energy Proton-Proton and Proton-Nucleus Collisions
Creators: name: Dusling, Kevin
name: Li, Wei
name: Schenke, Bjoern
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The observation of long-range collective correlations for particles emitted in high-multiplicity pp and pPb collisions has opened up new opportunities of investigating novel high-density QCD phenomena in small colliding systems. We review experimental results related to the studies of collective phenomena in small systems from RHIC and the LHC over the past several years. Latest development in theoretical interpretations motivated by different frameworks are also reviewed, and confronted with the experimental data. Perspectives on possible future directions are discussed, with the aim of further exploring the rich emergent QCD phenomena.
description: 77 pages, 43 figures, invited review in International Journal of Modern Physics E
On the stationary Navier-Stokes equations in the half-plane
Creators: name: Guillod, Julien
name: Wittwer, Peter
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 76D03, 76D05, 35Q30, 76D25, 74F10, 76M10

description: We consider the stationary incompressible Navier-Stokes equation in the half-plane with inhomogeneous boundary condition. We prove existence of strong solutions for boundary data close to any Jeffery-Hamel solution with small flux evaluated on the boundary. The perturbation of the Jeffery-Hamel solution on the boundary has to satisfy a nonlinear compatibility condition which corresponds to the integral of the velocity field on the boundary. The first component of this integral is the flux which is an invariant quantity, but the second, called the asymmetry, is not invariant, which leads to one compatibility condition. Finally, we prove existence of weak solutions, as well as weak-strong uniqueness for small data.
description: 28 pages, 4 figures
Memory limits when multi-tasking
Creators: name: Vergauwe, Evie
name: von Bastian, Claudia
name: Kostova, Ralitsa
name: Morey, Candice
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: complex span task
subject: dual-task
subject: multi-tasking
subject: short-term memory
subject: spatial memory
subject: verbal memory
subject: working memory

description: This project is funded by the British Academy (SRG18R1\180622).
The Abortion Debate in Cyberspace: How Facebook Users Approach the Abortion Debate in Light of Present and Past Discourse
Creators: name: Williams, Mary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: This thesis examines ideological and rhetorical trends among millennial populations in the comment
sections of three of the most popular social media sharing sites and compares them to the contemporary
ideologies of PPFA and NARAL Pro-Choice America. The key questions of this study are: “Do individual
commenters have the same ideologies as national organizations? In a highly polarized debate whose terms have
been largely defined by national advocacy groups, do individual citizens express original thoughts and
complexities that go beyond familiar labels? “
Dynamic Processes of Surfactants at Fluid Interfaces
Creators: name: Hsieh, Tsung-lin
Publisher: name: Carnegie Mellon University
Year: 2023
Subjects: subject: 90499 Chemical Engineering not elsewhere classified
subject: FOS: Chemical engineering

description: This thesis addresses knowledge gaps in several complex dynamic processes of surfactants at fluid interfaces. Topics covered in this work include (1) interfacial dynamics of complex structured polymeric surfactants, (2) interfacial properties of binary surfactant systems where two surfactants adsorb from different sides of the interface, (3) the coupling of capillary waves and surface tension-driven (Marangoni) spreading on deep and low-viscosity subphases, and (4) Marangoni spreading in binary surfactant mixtures. While those topics are different interfacial dynamic processes, the central and repeating themes in this thesis are to determine surfactants’ thermodynamic and dynamic effects, by experiments or modeling or both, in those processes of interest, and to report discoveries of new phenomena, correlations, or synergistic effects. By establishing the correlation between molecular structure, interfacial rheology and emulsifying efficiency, the interfacial stiffening behaviors and the polymer structures leading to such behaviors, e.g., the anchoring groups that fix polymers at the interface, were identified as key features contributing to high emulsifying efficiency. By probing the interfacial properties of systems where two surfactants access the interface from different bulk phases, binary surfactant attraction strength at the interface was identified as a key parameter dictating the occurrence of synergistic effects in interfacial tension reduction and dilatational modulus. By performing computational modeling on Marangoni spreading with the full Navier-Stokes equations, new features, e.g., the Marangoni shoulder, pertaining to surfactant spreading on deep and low-viscosity subphases were discovered. By correlating the synergistic composition ranges of surface tension synergism and the novel Marangoni spreading synergism for various binary surfactant systems, the importance of binary surfactant interaction as well as adsorption kinetics was revealed. Overall, this thesis provides critical insights into those specific topics and advances the general field of interfacial phenomena.
A Peak Point Theorem for Uniform Algebras on Real-Analytic Varieties
Creators: name: Anderson, John T.
name: Izzo, Alexander J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32A38, 32A65, 46J10, 46J15

description: It was once conjectured that if $A$ is a uniform algebra on its maximal ideal space $X$, and if each point of $X$ is a peak point for $A$, then $A = C(X)$. This peak-point conjecture was disproved by Brian Cole in 1968. Here we establish a peak-point theorem for uniform algebras generated by real-analytic functions on real-analytic varieties, generalizing previous results of the authors and John Wermer.
Peliosanthes teta Andrews 1810
Creators: name: Tanaka, Noriyuki
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Asparagaceae
Peliosanthes
Peliosanthes teta

description: 5. Peliosanthes teta Andrews (1810: t. 605), Ker Gawler (1810: t. 1302), Redouté (1812 –1813: t. 415).
 Type (lectotype, designated by Jessop 1976):―Botanist’s Repository 9: t. 605 (Andrews 1810).
 Teta viridiflora Roxburgh [1814: 24, nom. nud.] (1832: 165).
 Specimens examined:― BANGLADESH. Chittagong: 0–4000 ft, regio. trop., 1851, J. D. Hooker & T. Thomson 443 (K000099356); Chittagong, Chunati, 27 March 1998, M. A. Rahman, C. C. Wilcock et al. 2570 (E-00163803*); Khagrachari, Alutila hill, 27 June 1997, M. A. Rahman’s collectors 1189 (E-00156917*); Pogado hill, above Gadapara, Ramu, 11 April 1949, J. Sinclair 5771 (E-00894746*). INDIA. East Bengale: no date, Griffith 5838 (NY-00319818*– isolectoparatype of P. violacea var. minor). Sikkim: zone temp., 2400 m, July 1901 (?), Ch. d’Alleizette 7210 (L-1449874*); without detailed locality, 1830, hort. bot. Parisiensis (P-00214609). MYANMAR. Hopong State, Hopong, damp shaded valley at 3000 ft, April 1937, F. G. Dickason 8263 (L-0068851); Mandalay Division, Pyin-Oo-Lwin Township, Pwe Kauk Waterfall, NE of Pyin-Oo-Lwin, elev. 1000 m, 1 July 1999, W. J. Kress et al. 99-6483, cultivated at Smithsonian Greenhouse, 3 February 2001, L. Brothers s.n. (US 3430627, barcode US-00729780); Maymyo, 3400 ft, 28 July 1911, J. H. Lace 5376 (E-00846419*); Maymyo, near Naung Kangyi village, 3400 ft, 12 July 1940, Soe Hla 177775 (NY-02650781*); Maymyo Plat., 1 August 1915, A. E. English 68 (E-00846420*). THAILAND. Nakawn Sritamarat, Khao Luang, 750 m, 25 January 1966, B. Hansen & T. Smitinand 12073 (L-00688837); Nakhon Si Thammarat, Khao Luang area, wet green forest, elev. ca. 550–750 m, 17 May 1968, C. F. van Beusekom & C. Phengkhlai 828 (L-0068836); Trang Prov., Wang Wiset District, Aotong subdistrict, Khao Pra Bang Khram Wildlife Sanctuary, elev. 180 m, 6 March 2006, D. Middleton et al. 4084 (E-00261753*). VIETNAM. Tam Dao, elev. 500 m, 24 May 1982, M. Rejmanek s.n. (P-00214611).
 Distribution:― Bangladesh, Cambodia (Rodriguez 1934b), China (Chang 1978, including P. minor Yamamoto), India, Malaysia (Ridley 1924), Myanmar, Thailand, Vietnam (Rodriguez 1934b).
 Habitat:―In shady wet evergreen forests at elevations up to 2400 m.
 Phenology:―Flowering in November–July; fruiting in January–August.
 Notes:― Newman et al. (2007) cited two specimens from Laos (M. Newman et al. LAO 97, E-00214062*!; M. Newman et al. LAO 192, E-00208760*!) as Peliosanthes teta, but they appear to be different species.
description: Published as part of Tanaka, Noriyuki, 2018, Taxonomic revision of Peliosanthes bakeri and P. violacea (Asparagaceae), with description of two new species from Bangladesh and India, pp. 34-48 in Phytotaxa 356 (1) on page 44, DOI: 10.11646/phytotaxa.356.1.3, http://zenodo.org/record/13706161
Investigating the Impact of Firm-generated Content on User-generated Content and Box Office Sales
Creators: name: Kazi, Basil
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: This thesis examines how firm-generated content in the movie industry affects user-generated content, which in turn affects box-office sales. This study first examines how user-generated content affects box-office sales. Next, the relationship between firm-generated content and user-generated content is analyzed. To achieve these objectives, I collect the data of 224 movies over a two-year period as well as the associated tweets generated by both users and firms, the latter of which include the movie studio and main actors and actresses. My results indicate that the increased volume of Tweets drives box-office sales. I also find that the volume of firm-generated content, either generated by movie studios or by actors, results in an increase in the volume of user-generated content. In addition, I also find that interactions between official movie accounts and actor accounts on Twitter produces a synergy that boosts the volume of user-generated content. Several managerial implications regarding the effective use of social media as a communication channel in the movie industry are discussed.
You Can't Read That: Assessing Book Banning in a World of Film
Creators: name: Horn, Ashley Katherine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Existing research suggests banning books is an ineffective and detrimental process. Students are often exposed to the same controversial material through other media forms; therefore, banning literature removes academic spaces in which controversial topics may be discussed. Research also suggests students are becoming increasingly more interested in visual literature as opposed to written text. Yet, gaps in research on current teacher disposition on such topics still exist. Additional research is required to determine current educator opinions on book banning and the practice of using film supplements in the classroom. Fifty-five middle grades English Language Arts educators from across the state of North Carolina were surveyed on their thoughts on banned and/or challenged literature inclusion, comfortability with controversial topics, and film use in the classroom. A case study was also conducted on the following novels and their film adaptations: The Great Gatsby (1925) by F. Scott Fitzgerald, The Great Gatsby (2013), The Giver (1993) by Lois Lowry, The Giver (2014), The Perks of Being a Wallflower (1999) by Stephan Chobsky, and The Perks of Being a Wallflower (2012). Results showed support for the inclusion of historically banned and/or challenged literature in schools and the use of films to aid controversial discussions. This information should be shared with educators to encourage them to use historically banned and/or challenged literature in their curricula as well as use visual media to supplement controversial literature. These finding should also be shared with policy makers to encourage a reassessment of the state of book banning in North Carolina.
Molecular characterization of Colletotrichum spp. Isolates from Vietnam using multiple gene loci
Creators: name: SY, Sung
name: Maxwell L, Sheu ZM
Publisher: name: World Vegetable Center
Year: 2024
Subjects: subject: COLLETOTRICHUM
subject: ANTHRACNOSE
subject: CROP LOSSES
subject: DNA
subject: FUNGAL DISEASES
subject: Colletotrichum
subject: Anthracnose disease
subject: Agricultural losses
subject: Plant symptoms (dark sunken lesions)
subject: DNA extraction
subject: Gel electrophoresis
subject: DNA sequencing
subject: Multiple gene analysis
subject: FTA cards
subject: Fusarium graminearum (outgroup)
subject: C. scovillei
subject: C. boninense
subject: Disease control measures
subject: Fungal pathogens
subject: Vietnam plant samples

description: Colletotrichum is one of the most important genus of fungi widely recognized for causing anthracnose disease in plants, leading to significant agricultural losses worldwide. The most obvious and common symptoms are dark sunken lesions on leaves, stems, fruits and flowers. The workflow of our study includes, DNA extraction, Gel electrophoresis, DNA sequencing and Multiple Gene analysis. We grinding up the diseased plants collected in Vietnam and gathering them on the classic FTA cards. As you can see We use Fusarium graminearum as outgroup.And there are 80% gene types are C. scovillei, 6% C. boninense and others. We can implement more precise and effective control measures specifically targeting this species
MS Gr. class. c. 6 1370
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 Subscriptio. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
MS Gr. class. c. 6 1371
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 6. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
Lifestyle Interventions for the Management of Hypertension in Adults: A Review of Reviews
Creators: name: Allgood, Sallie D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Introduction: Hypertension is the most pervasive health concern in the U.S. with an estimated prevalence of 29.1–32.6%. Guidelines advise comprehensive treatment of hypertension that should include lifestyle changes. The objective of this review of reviews was to synthesize evidence on lifestyle interventions to reduce blood pressure in adults with essential hypertension and identify how race plays a role in determining which interventions are most effective. Methods: A systematic review of reviews was conducted in PubMed and CINAHL from January 2008 to October 2014 with the following search criteria: (1) major subject heading relating to the disease hypertension, (2) terms related to lifestyle and behavior modification interventions, and (3) systematic review or meta-analysis. Results: The literature search identified 652 citations, of which 10 met the selection criteria. These 10 reviews summarized evidence on 13 interventions that employed the following strategies: self-monitoring, professional support, education, diet, clinic reminders, problem solving, self-management, family involvement, or proactive delivery. The results demonstrated that although some individual strategies were successful in reducing blood pressure, combinations of strategies were the most successful. Discussion: Combinations of intervention strategies to reduce blood pressure are more successful than single strategies. No conclusions could be made about the differential effectiveness of based on race. Future studies need to evaluate which combinations of interventions are most successful to reduce blood pressure.
Evaluation of Mediators of Mononuclear Phagocyte System Function in Obese and Non-Obese Patients with Ovarian and Endometrial Cancer
Creators: name: Roberts, Brittney
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Introduction: Our prior studies suggest that obesity and obesity-related factors alter the
pharmacokinetics (PK) and pharmacodynamics (PD) of nanoparticles (NP), such as pegylated
liposomal doxorubicin (Doxil®; PLD). Specifically, obese patients will have higher circulating levels
of hormones and chemokines which lead to higher mononuclear phagocyte system (MPS) function,
higher NP clearance, and ultimately reduced tumor exposure and anti-cancer efficacy of NP
compared to non-obese patients. Thus we performed studies evaluating hormone and chemokine
mediators in obese and non-obese patients with ovarian cancer and endometrial cancer.
Methods: In obese and non-obese patients with ovarian and endometrial cancer, the
concentration of estradiol, estrone, 5-dihydrotestosterone (DHT) and testosterone was measured in
plasma samples using LC-MS/MS assays. In addition, CCL2 and CCL5 chemokines were
measured using a multiplex immunochemistry assay.
Results: A univariate analysis for CCL5, CCL2, estrone, estradiol, testosterone and DHT
revealed a significant odds ratio for the relationship between estradiol and body mass index (BMI)
(OR 8.64, 95% CI 2.67-28.0, P<0.001). A multivariate analysis was then performed to assess the
effect of other factors, including BMI, age at diagnosis, stage and the concentration of other
hormones and chemokines on estradiol concentration. The multivariate analysis revealed that there
was only a significant relationship between BMI and estradiol concentration.
Conclusion: A positive correlation was demonstrated between BMI and estradiol
concentration. Higher circulating levels of hormones in obese patients may explain reduced anticancer
efficacy of NP in obese patients compared to non-obese patients.
Charge doping versus impurity scattering in chemically substituted iron-pnictides
Creators: name: Herbig, Alexander
name: Heid, Rolf
name: Schmalian, Jörg
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: To reveal the relative importance of charge doping and defect scattering in substitutionally modified 122 iron pnictides, we perform a systematic first principles study on selected bands at the Fermi level. Disorder effects are induced by various substitutions using an orbital based coherent potential approximation (CPA). Pronounced level shifts of individual bands suggest that transition metal substitutions introduce mobile charge carriers into the system. However, important deviations from such a rigid band scenario as well as spectral broadenings due to impurity scattering correlate with the band character. Finally a $T$-matrix analysis exhibits a larger intraband than interband scattering consistent with an $s^{+-}$ pairing state. Comparing different substitutions reveals an increase of pair-breaking along the transition metal series.
Birthday Experiences
Creators: name: Apriceno, MaryBeth
name: Levy, Sheri
Publisher: name: Open Science Framework
Year: 2022

description: This study will employ a community sample of adults ages 45 through 54 adapted real birthday cards containing stereotypes directed at middle-aged and older adults to fit study conditions to examine if exposure to stereotypes through this medium impacts attitudes toward one's own aging, aging anxiety, stereotypes of older adults, and intentions to conceal one's age between the ages of 65 and 70.
MS Gr. class. c. 6 1372
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 7a. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
Suppressing Sympathetic Nervous System Activity and Appraisals of Stress: Implications for Depression
Creators: name: Mustafic, Hasan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Stress is important to study because of the abundance of stressors and the potential impact it has
on health. The impact of stress can vary based on the cognitive appraisal of the stressor. Lazarus
and Folkman (1984) define cognitive appraisals as the process of interpreting an event and its
different features, with respect to its impact on the individual. Cognitive appraisals consist of two
types of appraisals: challenge and threat, which are associated with different affective outcomes.
The main purpose of this study is to see if blocking sympathetic nervous system activity
influences the types of cognitive appraisals made in the face of a stressor. The SNS is
specifically examined because it plays a major role in physiological arousal. The SNS was
suppressed via the beta-blocker propranolol to test whether participants who received the drug
would have higher challenge appraisals. Participants were randomly assigned to either a placebo
group or beta-blocker group, and both groups later completed the Trier Social Stress Test. An
affect measure (PANAS) associated with performance on the TSST was given pre-and-post
TSST. The main hypothesis that individuals in the propranolol condition will make higher
challenge appraisals and lower threat appraisals than those in the placebo condition was not
supported. However, propranolol did have an impact on affective differences between groups.
Individuals in the propranolol condition had lower negative affect pre-stress and post-stress
compared to the placebo. These findings are discussed in the context of health and depression.
MS Gr. class. c. 6 1373
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 1. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
Neutron-antineutron Oscillation and Baryonic Majoron: Low Scale Spontaneous Baryon Violation
Creators: name: Berezhiani, Zurab
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a possibility that baryon number $B$ is spontaneously broken at low scales, of the order of MeV or even smaller, so that the neutron-antineutron oscillation can be induced at the experimentally accessible level. An associated Goldstone particle, baryonic majoron, can have observable effects in neutron to antineutron transitions in nuclei or dense nuclear matter. By extending baryon number to $B-L$ symmetry, baryo-majoron can be identified with the ordinary majoron associated with the spontaneous breaking of lepton number, with interesting implications for neutrinoless $2β$ becay with the majoron emission, etc. We also discuss a hypothesis suggesting that baryon number maybe spontaneously broken by the QCD itself via the six-quark condensates.
description: 8 pages, 5 figures
Emergence of cooperative dynamics in fully packed classical dimers
Creators: name: Oakes, Tom
name: Garrahan, Juan P.
name: Powell, Stephen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the behavior of classical dimer coverings of the square lattice - a paradigmatic model for systems subject to constraints - evolving under local stochastic dynamics, by means of Monte Carlo simulations and theoretical arguments. We observe clear signatures of correlated dynamics in both global and local observables and over a broad range of time scales, indicating a breakdown of the simple continuum description that approximates well the statics. We show that this collective dynamics can be understood in terms of one-dimensional "strings" of high mobility, which govern both local and long-wavelength dynamical properties. We introduce a coarse-grained description of the strings, based on the Edwards-Wilkinson model, which leads to exact results in the limit of low string density and provides a detailed qualitative understanding of the dynamics in all flux sectors. We discuss the implications of our results for the dynamics of constrained systems more generally.
description: 10 pages, 9 figures
The Role of Children in Women's Job Choice
Creators: name: Nesbit, Rachel Lee
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Women’s occupation choice has been incompletely modeled in the past, but this paper
brings together several methods to seek a more complex understanding of the decision process. I
employ panel data spanning three decades (1979 to 2012) and six thousand women in the United
States to investigate the impact of childbirth on the mother’s decision between occupations. I use
a multinomial logit model estimated through Stata’s generalized structural equation modeling
software and incorporate expected potential incomes through multiple imputation. Instrument
variables for childbirth expectations are employed to address endogeneity. Issues of endogeneity
ultimately turn out to be troublesome to correct for, but estimates from several models indicate
that women with children are less likely to work as managers and more likely to choose
occupations such as education or simply to remain at home.
On Lorentz spacetimes of constant curvature
Creators: name: Guéritaud, François
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 53C50

description: We describe in parallel the Lorentzian homogeneous spaces $G=\mathrm{PSL}(2,\mathbb{R})$ and $\mathfrak{g}=\mathfrak{psl}(2,\mathbb{R})$, and review some recent results relating the geometry of their quotients by discrete groups.
description: 16 pages, 2 figures. Appeared in the Proceedings of the December 2012 conference "Groups, Geometry, Dynamics" (Almora, India). Editors: C.S. Aravinda, W.M. Goldman, K. Gongopadhyay, A. Lubotzky, Mahan Mj, A. Weaver
Morphological analysis of the Carex intumescens complex
Creators: name: Medford, Hannah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Carex intumescens Rudge has a wide geographic range that extends across eastern North America. Despite this wide range, little taxonomic variation within the species has been formally described; C. intumescens var. fernaldii Bailey has been proposed but is not generally accepted. In this study, I quantitatively describe the morphological variation within the C. intumescens complex. I analyzed morphological characteristics of herbarium specimens that encompassed the full geographic range and a variety of habitats. From the resulting analyses, I found support for two groups within the C. intumescens complex, which I describe as C. intumescens var. fernaldii and C. intumescens var. intumescens. These entities differ primarily in number of perigynia, perigynium dimensions, and perigynium scale length. Here, I provide further detail and validation to the morphology of C. intumescens var. fernaldii, and expand the documented morphological variation within C. intumescens var. intumescens. This study aids our growing understanding of the Carex intumescens complex, and serves to illustrate the morphological variation present within the species.
MS Gr. class. c. 6 1374
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 5. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
Fluctuating hydrodynamics and mesoscopic effects of spatial correlations in dissipative systems with conserved momentum
Creators: name: Lasanta, A.
name: Manacorda, A.
name: Prados, A.
name: Puglisi, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We introduce a model described in terms of a scalar velocity field on a 1d lattice, evolving through collisions that conserve momentum but do not conserve energy. Such a system posseses some of the main ingredients of fluidized granular media and naturally models them. We deduce non-linear fluctuating hydrodynamics equations for the macroscopic velocity and temperature fields, which replicate the hydrody- namics of shear modes in a granular fluid. Moreover, this Landau-like fluctuating hydrodynamics predicts an essential part of the peculiar behaviour of granular flu- ids, like the instability of homogeneous cooling state at large size or inelasticity. We compute also the exact shape of long range spatial correlations which, even far from the instability, have the physical consequence of noticeably modifying the cooling rate. This effect, which stems from momentum conservation, has not been previously reported in the realm of granular fluids.
description: 16 pages, 6 figures
An Exploration of Stylistic Synthesis in Elizabethan Country Houses
Creators: name: Kent, Kristin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Among the numerous of country houses built with the hopes of entertaining Elizabeth, I will focus on four in this thesis: Burghley House, Longleat House, Wollaton Hall, and Hardwick Hall. These houses were chosen because of their unique embodiment of the fusion of Italian classicism, Flemish mannerism, and traditional English gothic that characterizes Elizabethan manor houses. These houses represent different geographic locations and patrons with varying social status and ambitions. They were all constructed between 1555 and 1597, and some had the honor of entertaining Elizabeth. Like other Elizabethan manor houses, these four case studies do not embody a single style that carries from one house to another. Each structure is aesthetically distinct, and incorporates gothic architecture, classicism, and mannerism in uncommon ways. I will focus on the history, patronage, and architecture of each house individually in the chapters to come. As part of my research, I visited each of these houses. As a result of my visits I was able to study the individual architectural details of the exterior of each house and capture a plethora of photographs. Most of the images used in this thesis are my own. These images help fill a void of available detailed photographs of these magnificent houses, which are often photographed as a whole. Images of the houses in their entirety are stunning, but difficult to analyze. Visiting the buildings allowed me to visually analyze the details of each house as they relate to the whole, and capture valuable images of the details. Detailed visual analysis while on the site of the house and later with the assistance of the photographic evidence I acquired was crucial to the study of these four houses.
Quench dynamics of Anderson impurity model using configuration interaction method
Creators: name: Lin, Chungwei
name: Demkov, Alexander A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the quench dynamics of an Anderson impurity model using the configuration interaction (CI) method. In particular, we focus on the relaxation behavior of the impurity occupation. The system is found to behave very differently in the weak-coupling and strong-coupling regimes. In the weak-coupling regime, the impurity occupation relaxes to a time-independent constant quickly after only a few oscillations. In the strong-coupling regime, the impurity occupation develops a fast oscillation, with a much slower relaxation. We show that it is the multi-peak structure in the many-body energy spectrum that separates these two regimes. The characteristic behavior, including the power-law decay and the period of oscillation, can also be related to certain features in the many-body energy spectrum. The respective advantages of several impurity solvers are discussed, and the convergence of different CI truncation schemes is provided.
description: 14 pages single column
The S-matrix algebra of the AdS2 X S2 superstring
Creators: name: Hoare, Ben
name: Pittelli, Antonio
name: Torrielli, Alessandro
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we find the Yangian algebra responsible for the integrability of the AdS2 X S2 X T^6 superstring in the planar limit. We demonstrate the symmetry of the corresponding exact S-matrix in the massive sector, including the presence of the secret symmetry. We give two alternative presentations of the Hopf algebra, along with related discussions on the issue of evaluation representations. We study the classical r-matrix, and re-discover the need for a secret symmetry also in this context. Finally, taking the simplifying zero-coupling limit of the S-matrix as a generating R-matrix for the Algebraic Bethe Ansatz, we obtain an effective model of free fermions on a periodic spin-chain. This limit should provide hints to the one-loop anomalous dimension of the mysterious superconformal quantum mechanics dual to the superstring theory in this geometry.
description: 27 pages, no figures; Version to appear in Phys. Rev. D
MS Gr. class. c. 6 1375
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 2. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
Analyzing the Prevalence of Staphylococcus aureus Virulence Factor Panton-Valentine Leukocidin in North Carolina Livestock Worker Community
Creators: name: Ifkovits, Connor
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: One issue associated with Staphylococcus aureus is the development of drug resistance.
A recently emerged strain of MRSA, ST398, has been identified as livestock-associated and
transmission has been found between animal and human. In the U.S., ST398 has been identified in livestock workers in Iowa and North Carolina. The development of virulence factors in S. aureus is also an issue. The virulence factor Panton-Valentine leukocidin increases the pathogenicity of a specific S. aureus infection. The goal of this study is to evaluate the prevalence of pvl in S. aureus isolates collected from a community of North Carolina livestock workers. PCR was utilized to identify pvl carriage. All S. aureus isolates examined have been negative for pvl. In order to achieve a better understanding of the isolates, more research can be done looking at the prevalence of other virulence factors.
MS Gr. class. c. 6 1376
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 3. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
The Human Spill:  Economic and Social Impacts of the Response to and Recovery from the Exxon Valdez Oil Spill
Creators: name: Crawford, Lauren
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Many Americans remember the 1989 Exxon Valdez oil spill as one of the most damaging technological disasters in American history and, until the Deepwater Horizon spill of 2010, it was the largest that the United States had ever experienced. The country had never seen a spill of this magnitude in its own waters. When the Exxon Valdez tanker ran aground on Bligh Reef on March 24, 1989, 11 million gallons of crude oil flooded into the Prince William Sound and coated over one thousand miles of isolated Alaskan shoreline. Almost immediately, the spill threatened the special relationship between the people of Alaska and the fragile ecosystem. The U.S. government and Exxon’s subsequent response to the disaster endangered the political, social, and economic cohesion of both native and non-native communities. Before the disaster, emergency planners doubted the possibility of a spill of such magnitude, which meant that responders were unprepared to fight the spill. As a result, poorly planned response and recovery efforts damaged the infrastructure, economies, and social cohesion of small Alaskan Native and non-native towns, with long-lasting consequences. The response became a disaster in its own right.
MS Gr. class. c. 6 1377
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 3a. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
MS Gr. class. c. 6 1378
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 9. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
Aufbereitung von Instrumenten der Minimal Invasiven Chirurgie - Stand und Perspektiven
Creators: name: Lösche, Christian
name: Boenick, Ulrich
Publisher: name: Technische Universität Berlin
Year: 2000
Subjects: subject: 610 Medizin und Gesundheit
subject: Sterilgutaufbereitung
subject: MIC
subject: Reinigung
subject: Endoskopie
subject: Validierung

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: Die Miniaturisierung der Instrumente der Minimal Invasiven Chirurgie hat Auswirkungen hinsichtlich Funktion, Verschleiß und Reinigungsfähigkeit. Speziell die Aufbereitung der Instrumente wird dadurch problematischer. Trotz des verstärkten Einsatzes von immer besseren Reinigungsautomaten ist bei einer zunehmenden Zahl von Instrumenten zu befürchten, dass der sich aus Reinigung, Desinfektion und wo vorgeschrieben Sterilisation zusammensetzende Prozeß nicht mit völliger Sicherheit durchgeführt werden kann. Sowohl die Entfernung der Anschmutzung als auch die Prüfung des Reinigungserfolges ist bedingt durch kleine Lumen, filigrane Gelenke und kompliziert aufgebaute mechanische Bauteile zunehmend erschwert. Die bisher angewendeten visuell-taktilen Methoden zur Prüfling der Reinigungserfolges genügen - obwohl Stand der Technik - infolge einer subjektiven Urteilsfindung nicht den Anforderungen an eine Reproduzierbarkeit der Ergebnisse. Allein durch die fehlende Objektivität des Prüfers sind sie auch vor dem Hintergrund einer Validierung der Reinigungsverfahren nicht akzeptabel. Problematisch ist, dass es noch kein allgemein akzeptiertes und praktikables Verfahren zur Prüfung der Reinigungsleistung bei Instrumenten der Minimal Invasiven Chirurgie gibt. Speziell fehlen Empfehlungen zur Routinekontrolle. So lässt sich die oben genannte Vermutung der möglicherweise unzureichenden Reinigung weder bestätigen noch widerlegen. Zudem existiert kein Konsens darüber, was „sauber" und was „rein" bedeutet. Welcher Grad der Restkontamination ist tolerierbar? Daraus ergibt sich dann die Frage nach der Nachweisgrenze und der Genauigkeit der Prüfverfahren.
Quantum dynamics of a plasmonic metamolecule with a time-dependent driving
Creators: name: Uken, Daniel A.
name: Sergi, Alessandro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We simulate the dynamics of a quantum dot coupled to the single resonating mode of a metal nano-particle. Systems like this are known as metamolecules. In this study, we consider a time-dependent driving field acting onto the metamolecule. We use the Heisenberg equations of motion for the entire system, while representing the resonating mode in Wigner phase space. A time-dependent basis is adopted for the quantum dot. We integrate the dynamics of the metamolecule for a range of coupling strengths between the quantum dot and the driving field, while restricting the coupling between the quantum dot and the resonant mode to weak values. By monitoring the average of the time variation of the energy of the metamolecule model, as well as the coherence and the population difference of the quantum dot, we observe distinct non-linear behavior in the case of strong coupling to the driving field.
MS Gr. class. c. 6 1379
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1538 col. 10. Philodemus, De poematis 5 alterum
Drawing by Giuseppe (?) Casanova
New Readings of Pier Vittorio Tondelli: Depictions of Queerness in Italian Literature
Creators: name: Hopkins, Dallas
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: This paper looks at the life and works of Italian author Pier Vittorio Tondelli, who was active from 1980 until his untimely AIDS related death in 1991. The research focuses on the presentation and role of homosexuality in the works of Tondelli, specifically his novels. Tondelli frequently used other identities and aspects of society as points of comparison for the homosexual experience, as a way to illuminate in new ways the life of a queer person. In some of his texts, particularly after a relationship has ended, or when a character feels lonely, there is even a sense of dystopia in the setting. Other occurrences of this sensation are present in his descriptions of the lives of the Italian youth - living in abandoned buildings (or even homelessness), using hard drugs, and existing almost totally away from normalized culture. These analyses are compared to the critical discussion of Tondelli’s texts, as well as his public reception. The paper aims to trace the disparity between Tondelli’s own thoughts about homosexuality and its role in his art and his presentation and reception - both negative and positive - in Italy after his death. Looking at both early writings and his last works, it is possible to see an overall development of thoughts towards homosexuality, but this nuanced evolution is not reflected in critical or popular reception and discussion. The  comparisons show that Tondelli was adopted and denounced as a gay writer after his death, although he defined himself as outside of this label.