cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: The embodied teaching of spatial terms
title: gestures mapped to morphemes improve learning
titleType: Subtitle
Creators: name: Janzen Ulbricht, Natasha
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: Second Language Acquisition
subject: Testing procedures
subject: Spatial terms
subject: Gesture
subject: linguistic units
subject: Abstract Concepts
subject: 400 Sprache::410 Linguistik::418 Standardsprache; Angewandte Linguistik

description: Learning spatial terms in a second language is often an arduous task which learners perform with varying levels of success. While classroom-based studies of gesture have shown the importance of embodied learning, predictions about which teaching gestures are most effective remain rare. In the context of learning and performing a play, this study investigates two English language teaching methods, one with teacher gestures at the level of morphology and one with gestures at the sentence level. This experiment with a diverse group of primary-school-age children from Germany and Poland (N = 76) shows that although over time both groups made similar gains in understanding and using spatial terms, this gain was more immediate for learners exposed to one gesture per morpheme. For beginning learners spatial terms are frequent, important and abstract, hence this research may have important implications for understanding the nature of effective methods for teaching and testing abstract concepts.
Norm and Pointwise Properties of the Brunel Operator
Creators: name: Hallyburton, Scott
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: The Brunel operator was introduced to tackle the question of pointwise ergodicity for positive, C\'esaro-bounded linear operators on $L^p(X), 1 \leq p < \infty$. We analyze the Brunel operator $A$ by studying a family of Taylor coefficients $\al{p}{n}$ associated to the $n$th power $A^n$. The first part of this thesis develops summation properties of these coefficients. We use this to prove that, on a Banach Space $\mathcal{X}$, $A$ is Ritt and power-bounded whenever $T$ is C\'esaro-bounded. The question of pointwise convergence still remains unanswered, however. The second part of the thesis discusses progress made on proving  $\sup_n A_n|f|< \infty$ almost everywhere for $f \in L^p$ under certain conditions. In particular, we prove that this fact is equivalent to the almost everywhere boudedness of a sequence of finite sums of $T^n|f|$, $n \in \N$.
Alcohol Dependence in Mice: A Cocktail of Change in Region-specific mRNA Concentration and Protein Amount
Creators: name: Lee, Julie Seohyun
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description:      Alcohol dependence poses great challenges against addressing Alcohol Use Disorders (AUD) by increasing tolerance to the drug’s adverse effects and inducing distressing withdrawal symptoms. With chronic alcohol use, the brain adjusts to recurrent excessive inhibitory signaling through physiological changes to upregulate excitatory neurotransmission. In particular, glutamate-detecting α-amino-3-hydroxy-5-methyl-4 isoxazolepropionic acid receptor (AMPAR) increases in synaptic density and activity upon prolonged alcohol use by an unknown mechanism. The shift towards glutamate signaling is indicative of neuroplasticity and anxiety-like symptoms that favor elevated alcohol drinking patterns. To identify the mechanism as to which dependence develops through the AMPAR pathway, C57BL/6J mice underwent the wellestablished Chronic Intermittent Ethanol (CIE) exposure to induce physiological responses similar to those observed in alcohol dependence in humans. Then, through qRT-PCR, gene expression of AMPAR pathway components associated with alcohol drinking behavior (GluA1,TARP-𝛾8, and PSD-95) were observed in brain regions (Prefrontal Cortex, Amygdala, Insular Cortex, and Nucleus Accumbens) particularly sensitive to excitatory signaling and interconnected in the reward pathway. Gene expression changes were then verified with relative protein concentrations to ensure processing of mRNA for activity. Significant changes indicate modulation of components of interest, which project onto the Nucleus Accumbens to retain neural homeostasis. In relation to protein concentration, further experimentation, such as varying decapitation time, is necessary to account for additional cellular and biochemical considerations such as mRNA and protein processing, time in between and during transcription and translation,
and reaction with the inter- and intracellular environment. Follow up studies to this experiment will provide clearer insight into molecular targets for pharmacological AUD interventions.
(502550) Humphrey Napier Sturt
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
The Difference-of-Log-Normals Distribution: Properties, Estimation, and Growth
Creators: name: Parham, Robert
Publisher: name: arXiv
Year: 2023
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: General Finance (q-fin.GN)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Economics and business

description: This paper describes the Difference-of-Log-Normals (DLN) distribution. A companion paper makes the case that the DLN is a fundamental distribution in nature, and shows how a simple application of the CLT gives rise to the DLN in many disparate phenomena. Here, I characterize its PDF, CDF, moments, and parameter estimators; generalize it to N-dimensions using spherical distribution theory; describe methods to deal with its signature ``double-exponential'' nature; and use it to generalize growth measurement to possibly-negative variates distributing DLN. I also conduct Monte-Carlo experiments to establish some properties of the estimators and measures described.
Light curve solutions of six eclipsing binaries at the lower limit of periods of the W UMa stars
Creators: name: Kjurkchieva, Diana P.
name: Dimitrov, Dinko P.
name: Ibryamov, Sunay I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Photometric observations in V and I bands of six eclipsing binaries at the lower limit of the orbital periods of W UMa stars are presented. Three of them are newly discovered eclipsing systems. The light curve solutions revealed that all short-period targets were contact or overcontact binaries and added new six binaries to the family of short-period systems with estimated parameters. Four binaries have equal in size components and mass ratio near 1. The phase variability of the V-I colors of all targets may be explained by lower temperatures of their back surfaces than those of their side surfaces. Five systems revealed O'Connell effect that was reproduced by cool spots on the side surfaces of their primary components. The light curves of V1067 Her in 2011 and 2012 were fitted by diametrically opposite spots. The applying of the criteria for subdivision of the W UMa stars to our targets led to ambiguous results.
description: 13 pages, 9 figures, accepted for publication in Research in Astronomy and Astrophysics (RAA)
A priori estimates and bifurcation of solutions for a noncoercive elliptic equation with critical growth in the gradient
Creators: name: Souplet, Philippe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study nonnegative solutions of the boundary value problem $$-Δu = λc(x)u + μ(x)|\nabla u|^2 + h(x),\quad u\in H^1_0(Ω)\cap L^\infty(Ω), \leqno(P_λ)$$ where $Ω$ is a smooth bounded domain, $μ, c\in L^\infty(Ω)$, $h\in L^r(Ω)$ for some $r > n/2$ and $μ,c,h > {\hskip -3.5mm} {\atop \neq} 0$. Our main motivation is to study the "noncoercive" case. Namely, unlike in previous work on the subject, we do not assume $μ$ to be positive everywhere in $Ω$. In space dimensions up to $n=5$, we establish uniform a priori estimates for weak solutions of ($P_λ$) when $λ>0$ is bounded away from $0$. This is proved under the assumption that the supports of $μ$ and $c$ intersect, a condition that we show to be actually necessary, and in some cases we further assume that $μ$ is uniformly positive on the support of $c$ and/or some other conditions. As a consequence of our a priori estimates, assuming that ($P_0$) has a solution, we deduce the existence of a continuum ${\cal C}$ of solutions, such that the projection of ${\cal C}$ onto the $λ$-axis is an interval of the form $[0,a]$ for some $a>0$ and that the continuum ${\cal C}$ bifurcates from infinity to the right of the axis $λ=0$. In particular, for each $λ>0$ small enough, problem $(P_λ)$ has at least two distinct solutions.
(502551) Mildred Cecilia Harriet Sturt
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title: An Aesthetics of Hauntology
Creators: name: Riley, Mark Simon
Publisher: name: Goldsmiths, University of London
Year: 2005

description: The text sets out to consider the aspects of the spectral, as proposed by Derrida in Spectres of Marx. As an alteric revenant refuting the historical/chronological determination of ratio and universality, it haunts the architectonics of the metaphysical edifice. This spectral 'operation' is also an activity of encryption which involves a discussion speculating on the virtual by proposing the transgressive rift as an introjective interruption that is realised through the abysmal (dis)order of fenestration. It uncovers a thematic of topological (dis)location via a series of 'meridial threads' which the dissertation seeks to explore through a scrutiny of aesthetics and specific creative activities. The first chapter explores this 'relation' with specific attention given to the alteric rift as an operation of differance as indicated by Derrida and seeks to critique this juxtaposition with particular reference and attention to Kant's aesthetics. Chapter two identifies Paul Celan's poem 'Todtnauberg' as a topos for a discussion on anticipation and silence in the complex historical relationship between the poet and the philosopher Martin Heidegger, as 'reported' in the poem. It identifies the topology of 'meridial haunting' at Heidegger's Black Forest mountain retreat. 'The Unheimlich Manoeuvre' (chapter three) deals with two key works by the architectural interventionist Gordon Matta-Clark, through a discussion on the uncanny (Unheimlich) and its relation to the homely (Heimlich), taking into account the encystic operation of mourning. The Final chapter continues this theme of the architecturally 'interruptive' by considering orientation with specific attention to the labyrinthine and the temporality of the crystal-image as cited by Deleuze in his writings on cinema and the spectral. It looks specifically at two films by Tarkovsky; Solaris and Stalker and Mark Z. Danelewski's novel House of Leaves (a complex fictitious account of a nonexistent documentary film which recounts the exploration of a labyrinth which appears in an ordinary suburban house).
(502556) George Gerald Foley
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title: Stand-Up Comedy and Everyday Life: Post-war British Comedy and the Subversive Strain.
Creators: name: Ritchie, Christopher
Publisher: name: Goldsmiths, University of London
Year: 1998

description: This thesis "examines stand-up comedy and its relation to everyday life and presents a model of everyday life in the commodity society. It seeks to define stand up comedy and how it works as a performance mode and will offer a definition of the stand-up comedian. It will examine how jokes reflect opinions and attitudes within everyday life and how they can communicate negative cultural myths, stereotypes and ideologies but also reach beyond the merely absurd and comical to present authentic moments that enable us to locate the truth about ourselves. The thesis seeks to locate a stand-up comedy that enables us to understand ourselves in relation to life in the commodity society. The thesis traces a subversive lineage through post-Second World War comedy from The Goon Show through the satirists of the 1960s and Monty Pylhon's Flying Circus to Alternative Comedy and stand-up comedians in the present day. The 'Alternative Comedy moment' between 1979 and 1981 is central to the thesis as is the relation to American stand-up comedy, Punk and the rise of reactionary humour in Britain. Alternative Comedy is identified and placed in a social, political and counter-cultural context. The achievements and failures of this comedy will be discussed with particular focus on the redefinition of the role of women and sexual politics in stand-up comedy and the creation of a thriving London cabaret and comedy scene. An argument against televised stand-up comedy and for live comedy will be put forward, as will an argument for a National Comedy Archive that will reflect the richness and continual changes within stand-up comedy in the last fifty years.
(502549) [Lady] Augusta Bingham
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Interference and reflection from the event horizon of a quantum corrected black hole
Creators: name: Gangopadhyay, Sunandan
name: Sen, Soham
name: Mandal, Rituparna
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work, we calculate the Hawking temperature for a quantum corrected black hole geometry using the $reflection$ $from$ $the$ $horizon$ method. We observe that quantum gravity corrections indeed show up in the Hawking temperature formula of the quantum corrected black hole. It is important to notice that the quantum gravity corrections arise in the Hawking temperature formula only due to the underlying quantum gravity corrections to the lapse function of the black hole metric rather than the semi-classical methods used in the analysis. We also substantiate our result by computing the Hawking temperature using the tunneling approach.
description: This manuscript is accepted for publication is Europhysics Letters
К ВОПРОСУ О КЛАССИФИКАЦИИ МИФОЛОГИЧЕСКИХ АРХЕТИПОВ
Creators: name: Уббиниязова, Ж.
Publisher: name: Zenodo
Year: 2023

description: Статья посвящена вопросу о классификации мифологических архетипов. Мифологические архетипы, зародившись тысячи лет назад, остаются актуальными на протяжении всего человеческого развития, они тоже эволюционируют. Это понятие востребовано в литературе. На основе изучения теоретического материала автор приходит к выводу о том, что при анализе произведений, опираясь на классификацию мифологических архетипов, можно обнаружить универсальность заложенных автором смыслов (зачастую интуитивно) и получает возможность интерпретировать произведения с другого ракурса, выявляя их глубинную семантику.
Genomique surveillance of severe acute respiratry syndrome coronavirus-2 (SARS-CoV-2) in Brazzaville, Republic of Congo
Creators: name: MFOUTOU MAPANGUY  Claujens Chastel
name: BATCHI-BOUYOU  Armel Landry
name: DJONTU Jean  Claude
name:  NGOMA Chamy  Helga
name: VOUVOUNGUI  Christevy
name:  NGUIMBI  Etienne
name: Ntoumi, Francine
Publisher: name: Gates Open Research
Year: 2022

description: The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus 2019 (COVID-19) disease, was first detected in China [1]. Variants of SARS-CoV-2 have emerged, increasing the transmissibility, pathogenicity of the disease [2] and decreasing the anti-Covid-19 vaccine effectiveness [3]. SARS-CoV-2 is a relatively rapidly mutating RNA virus [4], and the accumulation of its mutations during infection can serve as a molecular signal for monitoring epidemiological events. The objective of this study was to determine the prevalence and dynamics of SARS-CoV-2 variants circulating in the Republic of Congo during the epidemic period
 Between April 2020 and August 2022, samples collected from individuals with symptomatic and asymptomatic SARS-CoV-2 infection (positive RT-PCR test with a Ct<28) were used for the viral whole genome amplification by the conventional PCR. The positive PCR samples were qualified for sequencing using MinION (Oxford Nanopore next generation sequencing (NGS) Technology). The complete genomes of SARS-CoV-2 were analyzed using the ARTIC network pipelines. The sequenced genomes were submitted on GISAID for publication. The variants were assigned using pangolin and Nextclade nomenclature, and a complete distribution map of variants circulating in Brazzaville in 2021 was established.
 Out of the 589 samples qualified for sequencing, Three hundred and eighty one (381) SARS-CoV-2 genomes were successfully sequenced and submitted on GISAID. A total of 21 variants circulated, with the presence of variants of concern including alpha (B.1.1.7), delta (B.1.617.2) and Omicron (B.1.1.519) in the Republic of Congo. Four waves of the virus epidemics were observed in this study period. The B.1 variant (26%) was predominant in the first wave, B.1.620 (12%) and B1.241.2 (18%) were predominant in the second wave; B.1.617.2 (Delta) (34%) and B.1.640.1 (4%) in the third wave, and the Omicron variant (B.1.1.529) (90%) predominant in the fourth wave. The B.1.640.1 reported for the first time in the Republic of Congo in this study, was observed to be spreading locally and regionally. The phylogenetic analysis suggest that the Omicron (B.1.1.529) variant might share the same ancestor with C.16 variant which have circulated from December 2020 to January 2021, mostly in South and East African area. The distribution of SARS-CoV-2 variants was heterogeneous in Brazzaville, with the densely populated arrondissements of Poto-Poto and Moungali likely to have been the epicentre of the virus spread.
 This study provides valuable information on SARS-CoV-2 transmission in the Republic of Congo, contributing to SARS-CoV-2 surveillance on a temporal and spatial scale.
The current state of single-cell proteomics data analysis
Creators: name: Vanderaa, Christophe
name: Gatto, Laurent
Publisher: name: F1000 Research Limited
Year: 2022

description: Mass spectrometry-based single-cell proteomics is a fast growing field that enables quantitative proteomics at single-cell resolution. This is achieved thanks to technical improvements that dramatically increase the throughput, sensitivity and accuracy of the technology. However, little efforts have been invested in understanding single-cell proteomics data analysis. We have addressed this need with scp, an R/Bioconductor package that standardizes single-cell proteomics data analysis. We use our software to reproduce published analyses, leading to a comprehensive overview of the current state of single-cell proteomics data processing. Our work sheds light upon the limitations of current practices, proposes a principled approach to tackle these, and provides guidelines for future experiments.
Claiming Carolina: An Intergenerational Look at Southern Identity Among South Asians in North Carolina
Creators: name: Maydha Devarajan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: The American South, in many ways, is a microcosm of the complex racial, political and social histories of the United States and the ways in which this country draws boundaries and construct identities and definitions of belonging. Through oral histories and archival research, this project examines the intersection of cultural and regional identities among South Asians in North Carolina, particularly in how specific terminology and identity formation varies across generations, and the question of who takes on the identity of “Southerner.” For the interviewees who participated in this project, the spaces in which they slip in and out of their identities are varied and layered. Just as the Southern experience isn’t a monolith, neither is the Asian American experience nor, as in the case of this project, the South Asian American experience in the South.
title: Florida's Dissenters, Rebels and Runaways: Territorial Days to Emancipation
Creators: name: Rivers, Larry
Publisher: name: Goldsmiths, University of London
Year: 2002

description: This thesis examines slave resistance in Florida from the territorial period to emancipation. Florida bond servants manifested varying degrees of resistance. Much like other enslaved blacks throughout the South, the way slaves reacted to Florida's peculiar institution depended on their overall personality, size of the plantation or farm, and treatment by owners and managers (ie. overseers, stewards, foremen, and slave drivers). Enslaved blacks' behavior could range from mild daily dissidence to individual or collective violence against their masters, other whites, and occasionally fellow bond servants. Running away became the most frequent form of conservative resistance employed by bond servants to demonstrate their disenchantment with the day-to-day realities of slavery. The introduction explains the overall purpose and focus of this study. Specifically, it covers Florida slave resistance from 1821 to 1865. Chapter One explores the daily forms of slave dissidence that ranged from feigning illness to stealing food and other materials from the farms and plantations of Florida. Chapters Two through Four consider the various reasons slaves absconded including, but not limited to, their treatment, family and kinfolk concerns, and demands of the work routine. Chapter Five analyzes the most extreme form of slave resistance--physical violence. This type of resistance, either individual or collective, was a frequent result of bondservants' frustration and anger with the Florida slave regime. Chapter Six focuses on Florida slave holders' and society's responses to the perennial problem of slave runaways through the enactment of slave patrol laws. Although Florida statutes created them, slave patrols usually functioned only during times of crisis. Slave catchers--that is, owners, overseers, professionals, and other whites in the community-more frequently served in the capture and return of fugitives than did slave patrols. Resistance in the form of slaves running away to join and fight for the Union army during the Civil War constitutes the primary focus of chapter Seven. Chapter Eight presents an overall profile of Florida runaways. For example, it analyzes the types of slaves who more frequently absconded, their age, their personality traits as described by owners, and their gender. The concluding chapter summarizes and places in perspective the various forms of Florida slave resistance during the overall period under study.
Difference in Interferon Responsive Genes in HIV-1 Infected PBMCs and CD4 T-cells After Treatment With LRAs
Creators: name: Kena Lemu
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: HIV/AIDS has taken the lives of millions of people worldwide. While treatments with ART are available to suppress the HIV viral load to undetectable levels, lifetime ART is expensive and some individuals are prone to longterm side effects so it is of utmost importance to finding a cure. In this project, we utilized the "shock and kill" method in HIV cure studies using PEP005 to see difference in interferon responsive genes in HIV infected PBMCs, CD4 T-cells and CD4 T-cells co-cultured with PBMCs. We observed similarity in the expression of the two interferon responsive genes, IFI6 and ISG56 between PBMC and CD4+ T-cell co-cultures compared to CD4+ T-cells cultured alone in uninfected but did not observe this pattern in infected cells. We also see an up regulation of HIV-associated RNA when treated with PEP005 in all cell groups when compared to the untreated.
Emotional Eating as a risk factor for Post-Partum Depression
Creators: name: Wilson, Elena
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Post-partum depression is prevalent in approximately 20% of mothers1. Post-partum depression symptoms include: depressed mood, excessive crying, withdrawing from emotional support, loss of appetite, insomnia, loss of energy, anger, hopelessness, severe anxiety, and thoughts of death.1 Untreated post-partum depression can manifest into major depressive disorder for the mother and can affect her child as well.1 Children of mothers who had post-partum depression are more likely to have behavioral problems with sleeping and eating.1 The prevention methods and risk factors are not well-understood; therefore, it is difficult to identify and prevent a pregnant woman from having post-partum depression.2 To fill this gap in knowledge, the study conducted will examine if emotional eating during pregnancy is correlated to experiencing post-partum depression. By determining if there is a correlation between the two variables, we would be able to identify mothers who are at a higher risk for post-partum depression and help them gain access to the necessary resources for post-partum depression prevention. This study will be conducted by the Neuropsychology of Ingestive Behavior Laboratory because this lab has performed an on-going study called Sprouts. Sprouts which was formerly known as Peas has followed the nutrition of pregnant people throughout their gestation period and has measured their child’s responsivity to food for six years. Utilizing this data, this study will examine if emotional-eating is correlated with post-partum depression.
Kirigami-Inspired Thermal Regulator
Creators: name: Ouyang, Hongyi
name: Gu, Yuanqing
name: Gao, Zhibin
name: Hu, Lei
name: Zhang, Zhen
name: Ren, Jie
name: Li, Baowen
name: Sun, Jun
name: Chen, Yan
name: Ding, Xiangdong
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: One of the current challenges in nanoscience is tailoring phononic devices, such as thermal regulators and thermal computing. This has long been a rather elusive task because the thermal-switching ratio is not as high as electronic analogs. Mapping from a topological kirigami assembly, nitrogen-doped porous graphene metamaterials on the nanoscale are inversely designed with a thermal-switching ratio of 27.79, which is more than double the value of previous work. We trace this behavior to the chiral folding-unfolding deformation, resulting in a metal-insulator transition. This study provides a nanomaterial design paradigm to bridge the gap between kinematics and functional metamaterials that motivates the development of high-performance thermal regulators.
Dispersion Corrected DFT Study of Pentacene Thin Films on Flat and Vicinal Au Surfaces
Creators: name: Mete, Ersen
name: Danisman, Mehmet Fatih
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Here we a present a density functional theory study of pentacene ultra-thin films on flat [(111)] and vicinal [(455)] Au surfaces. We have performed crystal and electronic structure calculations by using PBE and optB86b-vdW functionals and investigated the effects of long range Van der Waals interactions for different coverages starting from a single isolated molecule up to 4 monolayers of coverage. For an isolated molecule both functionals yield the hollow site as the most stable one with bridge-60 site being very close in energy in case of optB86b-vdW. Binding strength of an isolated pentacene on the step edge was found to be much larger than that on the terrace sites. Different experimentally reported monolayer structures were compared and the (6 x 3) unit cell was found to be energetically more stable than the (2 x 2 $\sqrt{7}$) and (2 x $\sqrt{31}$) ones. For one monolayer films while dispersion corrected calculations favored flat pentacene molecules on terraces, standard (PBE) calculations either found tilted and flat configurations to be energetically similar (on (111) surface) or favored the tilted configuration (on (455) surface). PDOS calculations performed with optB86b-vdW functional showed larger dispersion of molecular orbitals over the Au states for the (455) surface when compared with the (111) surface, indicating an enhanced charge carrier transport at the pentacene-gold interface in favor of the vicinal surface. Starting with the second monolayer, both functionals favored tilted configurations for both surfaces. Our results underline the importance of the dispersion corrections for the loosely bound systems like pentacene on gold and the role played by step edges in determining the multilayer film structure and charge transfer at the organic molecule-metal interface.
description: 8 Figures, 4 Tables
Exciton-polaritons in transition-metal dichalcogenides and their direct excitation via energy transfer
Creators: name: Gartstein, Yuri N.
name: Li, Xiao
name: Zhang, Chuanwei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Excitons, composite electron-hole quasiparticles, are known to play an important role in optoelectronic phenomena in many semiconducting materials. Recent experiments and theory indicate that the band-gap optics of the newly discovered monolayer transition-metal dichalcogenides (TMDs) is dominated by tightly bound valley excitons. The strong interaction of excitons with long-range electromagnetic fields in these 2D systems can significantly affect their intrinsic properties. Here, we develop a semi-classical framework for intrinsic exciton-polaritons in monolayer TMDs that treats their dispersion and radiative decay on the same footing and can incorporate effects of the dielectric environment. It is demonstrated how both inter- and intra-valley long-range interactions influence the dispersion and decay of the polaritonic eigenstates. We also show that exciton-polaritons can be efficiently excited via resonance energy transfer from quantum emitters such as quantum dots, which may be useful for various applications.
description: 6 pages, 2 figures
A Qualitative Analysis of Resources to Diminish Barriers to Physical Activity in Young Adults with Type 1 Diabetes
Creators: name: Carly Medwin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Background: Exercise is an important glycemic control and weight management technique for those with type 1 diabetes (T1D), yet there are barriers such as fear of hypo- and hyperglycemia as well as the lack of structured guidelines for safe exercise that keep approximately 60% of these individuals from participating in regular physical activity (PA). The goal of this project is to understand what resources and kinds of support individuals with T1D are looking for to assist with their exercise routines and minimize the barriers they face while exercising.
Methods: We recruited 29 adults aged 18-40 who had T1D for more than 1 year and were not pregnant to participate in virtual focus group (FG) discussions. These discussions were facilitated by a script that included questions about preconceived barriers to exercising with T1D and the effectiveness of four resources (mobile apps, exercise programs, health professionals, and support groups) to diminish these barriers. 
Results: For each topic prompted in the FG discussions, we found two main themes that included specific reasons for not regularly participating in exercise or reasons why specific resources would or would not be useful. Cross-cutting themes across all FG topics included personalization and accessibility of resources as well as fear of using resources due to previous negative experiences and demanding suggestions.
Conclusions: The perspectives we collected suggest that barriers to exercising with T1D and the qualities of ideal resources to combat them are consistent with the existing literature, but more research needs to be conducted regarding the realistic potential and personalization of resources. Participants noted many barriers to using such resources that varied depending on their previous life experiences with T1D. This raises the need for user support regarding such resources at the time of diagnosis to limit preventable barriers that arise from navigating exercise on one’s own without the appropriate amount and specificity of support.
Dangerous and Deceptive: True and False Pregnancy in Early Modern England
Creators: name: Crook, Laura
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: The paired experiences of childbirth and pregnancy were carefully written about by early modern women and medical and religious authority figures. The specific experience of false pregnancy – a pregnancy in which a woman and her practitioner were deceived into believing the pregnant belly contained a fetus when it instead contained non-fetal material – was written about and warned against frequently in midwifery manuals and religious treatises alike. Prior scholarship has not fully outlined the causes, analogies, symptoms, and types of early modern false pregnancies. This thesis seeks to examine the danger that early modern English women and their authority figures understood as inherent to pregnancy as well as the deception involved in potentially carrying a false conception or mole rather than an anticipated infant. By examining the experiences of early modern women in pregnancy, including those women unknown to history and those of legendary status such as Mary Tudor and Anne Hutchinson, we can better understand the historical underpinnings of distrust assigned toward a woman’s knowledge about her own body. Ultimately, this thesis finds that the concerns, metaphors, and ceremonies associated with early modern pregnancy reveal a societally shared understanding of enhanced danger and deception associated with true and false pregnancies alike.
Quantum Monte-Carlo for correlated out-of-equilibrium nanoelectronics devices
Creators: name: Profumo, Rosario E. V.
name: Groth, Christoph
name: Messio, Laura
name: Parcollet, Olivier
name: Waintal, Xavier
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a simple, general purpose, quantum Monte-Carlo algorithm for out-of-equilibrium interacting nanoelectronics systems. It allows one to systematically compute the expansion of any physical observable (such as current or density) in powers of the electron-electron interaction coupling constant $U$. It is based on the out-of-equilibrium Keldysh Green's function formalism in real-time and corresponds to evaluating all the Feynman diagrams to a given order $U^n$ (up to $n=15$ in the present work). A key idea is to explicitly sum over the Keldysh indices in order to enforce the unitarity of the time evolution. The method can easily reach long time, stationary regimes, even at zero temperature. We then illustrate our approach with an application to the Anderson model, an archetype interacting mesoscopic system. We recover various results of the literature such as the spin susceptibility or the "Kondo ridge" in the current-voltage characteristics. In this case, we found the Monte-Carlo free of the sign problem even at zero temperature, in the stationary regime and in absence of particle-hole symmetry. The main limitation of the method is the lack of convergence of the expansion in $U$ for large $U$, i.e. a mathematical property of the model rather than a limitation of the Monte-Carlo algorithm. Standard extrapolation methods of divergent series can be used to evaluate the series in the strong correlation regime.
description: 21 pages, 21 figures. Added new Fig.12 on series resummation
title: The Lyric Poetry of Johann Christian Gunther as a Paradigm of the Transition from Baroque to Enlightenment
Creators: name: Sutherland, Catherine
Publisher: name: Goldsmiths, University of London
Year: 1991

description: This dissertation seeks to do two things: firstly to examine Gunther's poetry in the context of his age; and, secondly, to use a study of his verse as a key to illuminate the intellectual and literary life of the transitional period in which he wrote. This dual approach, which combines closely textual with contextual analysis, seeks to challenge simplistic assessments of Gunther whether as an early precursor of the Sturm und Drang or as an unswerving upholder of the Silesian tradition. The contextual study offers a new perspective on the literary transition from the seventeenth to the eighteenth century, firstly by focussing on imagery in the lyric poetry of this time, which, it is agreed, cannot adequately be characterised by the concept of Barocke Bildlichkeit. The focus then shifts to an analysis of wider issues in literary debate in the early decades of the eighteenth century. It is argued that Gunther's poetic legacy was neglected by his literary successors both because his solutions to the dilemmas of the transition were not seen as radical enough and because he did not belong to any of the opinion forming literary societies of these early decades. The textual study focusses on the relationship of Gunther's poetry both to the form and to the content of the past century's literary tradition. The ambivalent tension we find in Gunther, who pays lip service to the pillars of the literary tradition and continues to use its forms while at the same time perceiving its inward hollowness, becomes evident in his satire and parodies of occasional verse. This tension, it is contended, is paradigmatic of the transitional period itself. This tension also permeates the content of Gunther's poetry and his use of tropes. A chapter on Gunther's use of the figure of Job shows how he subverts the traditional connotations of this biblical figure for his own purposes of establishing a new poetic ideal of Redlichkeit or literary sincerity. Gunther's poetry may be seen as paradigmatic of the transitional period in which he was writing because his concerns were those of his age; what however sets him apart from his contemporaries is his poetic isolation. Guinther sought to forge a way forward in relation to the Silesian tradition, just as his contemporaries were seeking to break free of its century long stranglehold. Gunther claimed Lohenstein and Hofmannswaldau as his poetic idols, yet his concept of Redlichkeit could not be further from their elaborate ornamentation. Whilst attempting to remain true to these models, Gunther often unconsciously undermines them and in so doing, often strikes out on a much more unusual path than his peers.
Misinformation Policies in the COVID-19 Pandemic
Creators: name: Padhye, Isha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: In the age of social media, there continues to be a rapid exchange of information. Beneficial to our ever evolving society, this fast paced exchange of information has many downfalls — mainly misinformation and disinformation. As the COVID-19 pandemic impacted every aspect of life, the information surrounding the pandemic spread very easily and in many instances the information was not factual. Naming it an infodemic, the Director General of the World Health Organization warned countries about the dangers of this phenomenon (Ghebreyesus, 2020). While the spread of misinformation is inevitable, nations can enact policies to curb this spread, and they have. Even before, and during the pandemic, states have implemented different types of policies that fall into mainly three categories:  (1) restrictive of human rights (2) directed towards big technology companies (3) advisories/campaigns. 
This thesis aims to evaluate the impact of different types of policies in a cross-national study including thirty different countries. I first categorize the different policies based on what the countries have enacted into the three categories or if they do not have a policy in place, categorize it as so. Building upon this analysis, I conducted a one-way ANOVA test and a Tukey’s HSD test on the mean responses for three questions that I used as a proxy for the spread of misinformation. I found that the lowest levels of misinformation were found in the states with policies that were restrictive of human rights. 
The conclusion outlines policy recommendations for states and future research: including a recommendation that states should expand their anti-misinformation programs and that researchers should conduct a country by country analysis.
Protoplanetary Disk Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory
Creators: name: Schwarz, Kamber
name: Najita, Joan
name: Bergner, Jennifer
name: Carr, John
name: Tielens, Alexander
name: Bergin, Edwin
name: Wilner, David
name: Leisawitz, David
name: Walker, Christopher
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Orbiting Astronomical Satellite for Investigating Stellar Systems (OASIS) is a NASA Astrophysics MIDEX-class mission concept, with the stated goal of following water from galaxies, through protostellar systems, to Earth's oceans. This paper details the protoplanetary disk science achievable with OASIS. OASIS's suite of heterodyne receivers allow for simultaneous, high spectral resolution observations of water emission lines spanning a large range of physical conditions within protoplanetary disks. These observations will allow us to map the spatial distribution of water vapor in disks across evolutionary stages and assess the importance of water, particularly the location of the midplane water snowline, to planet formation. OASIS will also detect the H2 isotopologue HD in 100+ disks, allowing for the most accurate determination of total protoplanetary disk gas mass to date. When combined with the contemporaneous water observations, the HD detection will also allow us to trace the evolution of water vapor across evolutionary stages. These observations will enable OASIS to characterize the time development of the water distribution and the role water plays in the process of planetary system formation.
description: 19 pages, 5 figures, published in Space Science Reviews
Evaluating cingulin expression in classical and basal subtypes of pancreatic ductal adenocarcinoma by immunofluorescence
Creators: name: Tian, Sarah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Pancreatic Ductal Adenocarcinoma (PDAC) comprises 90% of pancreatic cancers and has a 5-year survival rate of only 11%. PDAC was discovered to have a classical and basal subtype based on similar gene expression profiles. The classical subtype of pancreatic ductal adenocarcinoma (PDAC) is associated with a more defined cell polarity and has a better prognosis and response to current treatments than the basal tumor subtype. We hypothesize that classical tumors have a more defined cell polarity, based on cingulin localization pattern and expression, compared to basal tumors Through this research, we hope to establish a link between cingulin expression and PDAC subtype. This link could help open new potential treatment targets based on cell polarity in the future. We conducted immunofluorescence staining and confocal imaging for cingulin using 3 lines of cryosectioned classical tumor tissue, 3 lines of basal tumor tissue, and 3 lines of classical organoids. Our results after visually comparing fluorescence levels showed no significant difference in cingulin expression between the classical versus basal PDAC tumors.
Viewing Multiple Interactive Plots with {Plotly} and {Trelliscopejs}: A Lipidomic Data Example
Creators: name: Selva, Jeremy
name: Torta, Federico
name: Burla, Bo
name: Wenk, Markus
Publisher: name: F1000 Research Limited
Year: 2022

description: In a targeted lipidomics analysis workflow, quality checks are done to ensure a molecule measured in a sample is in good quality. This results in several quality control (QC) plots created for each molecule which are exported as pdf files. However, as technologies improved, many molecules can be measured in one sample quickly. Today, over 500 molecules can be easily be measured on large studies of a few thousand samples. Looking at several 500-page pdf files of static plots has its limitations. An output of interactive plots that can be distributed easily is required.

 For each molecule, R package {Plotly} was used to create these interactive quality control plots, like the Injection Sequence vs Peak Area scatter plots, Raincloud plots (or violin plots) and Dilution Curve plots. R package {Trelliscopejs} is then used to view them as an interactive trellis plot. QC statistics and other metadata can be converted to cognostics which can be used to group, filter, and sort the plots, providing meaningful information. Trelliscopejs objects can be exported as a non-self contained html file which can be compressed in a folder and distribute to others.

 A Quarto report is created to show how it can be done using an open access published data set from a paper titled: Lipidomic profiling of human serum enables detection of pancreatic cancer.