cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kann die Physik das Leben wissenschaftlich erfassen?
Creators: name: Borzeszkowski, Horst-Heino Von
Publisher: name: Technische Universität Berlin
Year: 2006
Subjects: subject: 100 Philosophie und Psychologie

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: Oft wird die in der Überschrift gestellte Frage kurz und bündig mit dem Satz beantwortet: »Natürlich nicht,denn Physik ist nicht Biologie!« Im hiesigen Kontext wiegt allerdings schwerer, daß Hegel ebenfalls zu einer verneinenden Antwort auf diese Frage kommt. Um Hegels Argumente hinsichtlich ihrer Stichhaltigkeit zu analysieren, hat man nicht eine Gegenüberstellung dessen, was wir heute unter Physik und Biologie verstehen, vorzunehmen, sondern die Denkweise der Wissenschaften, in Sonderheit der Physik, mit den von Hegel bestimmten Stufen des Denkens zu vergleichen. Dabei wird sich zeigen, daß Hegels Begründung seiner verneinenden Antwort ebenfalls unbefriedigend ist, insofern nämlich, als die Denkweise der Physik von ihm gar nicht adäquat rezipiert worden ist, oder anders gesagt, in seinem System keinen Platz findet. Vielmehr wird sichtbar werden, daß aus tiefliegenden epistemologischen Gründen manches für eine positive Antwort auf unsere Frage spricht, daß also dann, wenn man die Frage Hegelsch auffaßt, die eigentlichen Perspektiven der Physik in Hinblick auf die wissenschaftliche Erfassung des Lebens erkennbar werden.
MS Gr. class. c. 6 1320
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1506 col. 3. Philodemus, De rhetorica 3
Drawing by Carlo Orazi
Evaluating Targeted Sequencing Technology for Use in Newborn Screening
Creators: name: Metcalf, Falecia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Newborn screening is used to diagnose illness in presymptomatic infants so that they may begin intervention to reduce the impact of the illness. The Recommended Universal Screening Panel (RUSP) is a list of conditions designated by a national panel to guide newborn screening in all states; this testing is currently conducted predominantly by tandem mass spectrometry to detect analytes indicative of rare inborn errors of metabolism.  Advances in genetic sequencing technology now enable us to consider the possibility of using sequencing as a way to presymptomatically identify a vast number of other rare Mendelian conditions.  However, if genetic screening is to be used to expand newborn screening, a low cost method must be found to accomplish this task.  Our research group is currently considering Molecular Inversion Probes (MIPs) to complete this task. MIPs are being designed to target RUSP conditions which have already been vetted for return to patients, and evaluation of their performance in genes causing primary RUSP conditions is being considered the first step in evaluating their use in newborn screening.   We designed MIPs to cover 40 such genes and sequenced 8 individuals to evaluate their performance. To review the performance of MIPs, the percent of known pathogenic variants within a given gene with MIPs designed to detect them as well as the percent of known pathogenic variants with at least 30X depth in all 8 samples was determined using the ClinVar database and the University of California, Santa Cruz genome browser (HG38). It was found that for some genes, MIPs were capable of detecting corresponding pathogenic variants, while for other genes, MIPs would miss some or all of the known pathogenic variants. A targeted search of which pathogenic variants were missed could help evaluate MIPs that need to be redesigned before the assay can be used to supplement newborn screening, in order to validate this genetic test to try and optimize it for use in newborn screening. Our goal is to find an affordable method for genetic testing which may be used to expand newborn screening far beyond the scope of the RUSP conditions, and to provide a framework for integrating new gene-disease pairs as they are confirmed.
A Keck Survey of Gravitationally-Lensed Star-Forming Galaxies: High Spatial Resolution Studies of Kinematics and Metallicity Gradients
Creators: name: Leethochawalit, Nicha
name: Jones, Tucker A.
name: Ellis, Richard S.
name: Stark, Daniel P.
name: Richard, Johan
name: Zitrin, Adi
name: Auger, Matthew
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We discuss spatially resolved emission line spectroscopy secured for a total sample of 15 gravitationally lensed star-forming galaxies at a mean redshift of $z\simeq2$ based on Keck laser-assisted adaptive optics observations undertaken with the recently-improved OSIRIS integral field unit (IFU) spectrograph. By exploiting gravitationally lensed sources drawn primarily from the CASSOWARY survey, we sample these sub-L$^{\ast}$ galaxies with source-plane resolutions of a few hundred parsecs ensuring well-sampled 2-D velocity data and resolved variations in the gas-phase metallicity. Such high spatial resolution data offers a critical check on the structural properties of larger samples derived with coarser sampling using multiple-IFU instruments. We demonstrate how kinematic complexities essential to understanding the maturity of an early star-forming galaxy can often only be revealed with better sampled data. Although we include four sources from our earlier work, the present study provides a more representative sample unbiased with respect to emission line strength. Contrary to earlier suggestions, our data indicates a more diverse range of kinematic and metal gradient behavior inconsistent with a simple picture of well-ordered rotation developing concurrently with established steep metal gradients in all but merging systems. Comparing our observations with the predictions of hydrodynamical simulations suggests that gas and metals have been mixed by outflows or other strong feedback processes, flattening the metal gradients in early star-forming galaxies.
description: Accepted to ApJ 19 pages, 9 figures
[Rezension zu:] Stefan Scherer, Witzige Spielgemälde. Tieck und das Drama der Romantik. 2003
Creators: name: Rath, Wolfgang
Publisher: name: Technische Universität Berlin
Year: 2006
Subjects: subject: 800 Literatur und Rhetorik

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: Der Titel zitiert Friedrich Schlegels Charakterisierung der Arabeske. „Witzige Spielgemälde“ als Arabesken inszenierte Schlegel selbst in seinem „verwilderten Roman“ Lucinde, auch ihre Theoretisierung stellte er in den Kontext des Romans unter dem Titel „Brief über den Roman“. Aus diesem Zusammenhang mit dem Roman überträgt Scherer den Ausdruck auf die Gattung des Dramas, setzt dem Gegenstand seiner Untersuchung gleichsam „fremde Federn“ auf, Straußfedern (nach der Zeitschrift, die der junge Tieck bediente). Der Titel enthält so ein Programm. Es folgt erstens dem romantischen Konzept der Universalpoesie, nach der das Drama sowohl als „angewandter Roman“ zu verstehen ist, als auch – umgekehrt – als die „wahre Grundlage eines Romans“. Zweitens reflektiert der Titel den gegenwärtigen Forschungsstand, den nach Scherer ein Primat der Prosaanalyse kennzeichnet, das heißt die vor allem auf dem Gebiet der Prosa entwickelten neueren Forschungsergebnisse werden für das Drama aktualisiert und somit der Stand der Forschung selbst kontrolliert. Aus dieser „Selbstprogrammierung“ der Tieck-Rezeption ergibt sich drittens die Evidenz des Titels gemäß seiner drei ineinander verspiegelten Bedeutungshöfe: der romantischen Kategorien Witz und Spiel sowie des Schlegelschen Begriffs vom Gemälde, der auf einen komplexen Zusammenhang, Universalität abzielt. Dem Universalroman korrespondiert das Universaldrama.
Fluorite-Type Solid Solutions in the System Y-Ta-O-N: A Nitrogen-Rich Analogue to Yttria-Stabilized Zirconia (YSZ)
Creators: name: Schilling, H.
name: Wolff, H.
name: Dronskowski, Richard
name: Lerch, Martin
Publisher: name: Technische Universität Berlin
Year: 2006
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: Tantalum Oxynitride
subject: Fluorite-type structure
subject: synthesis
subject: computational chemistry

description: Fluorite-type phases in the system Y-Ta-O-N have been prepared by ammonolysis of Y-Ta-O precursors. X-ray powder patterns show unusual asymmetrical reflection profiles explained by DFT and MD methods. The anion vacancy concentration of some of these oxynitrides is similar to that of yttria-doped zirconia, commercially used as solid electrolyte in fuel cells. Hence, these compounds are interesting candidates for mixed oxygen-nitrogen superion conductors
Taxilejeunea setchellii Pearson 1924
Creators: name: Lee, Gaik Ee
name: Bechteler, Julia
name: Heinrichs, Jochen
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Marchantiophyta
Jungermanniopsida
Porellales
Lejeuneaceae
Taxilejeunea
Taxilejeunea setchellii

description: Taxilejeunea setchellii Pearson (1924: 146).
 Type: OCEANIA. Samoa, “Aua-Aofono Trail”, 1920, W. A. Setchell 1161a (isotype UC!).
 Note: The isotype of T. setchellii deposited in herbarium UC and collected by W. A. Setchell was numbered as 1161a whereas in the original description (Pearson 1924), the collection number was 1161. The holotype, perhaps numbered as 1161, could not be located. The prominently horned perianths (numerous), the presence of ocelli, and the dark color of the plants in the isotype collection indicate that this species does not belong to Taxilejeunea / Lejeunea but is a member of Ceratolejeunea Jack & Stephani (1892: 16). The specimen needs further study, however, because of the possibility of an earlier name for this species in the genus Ceratolejeunea. Moreover, in the protologue only young gynoecia without perianth were described and illustrated; which closely resembled L. sordida.
description: Published as part of Lee, Gaik Ee, Bechteler, Julia & Heinrichs, Jochen, 2018, A revision of unrevised taxon names in the former genus Taxilejeunea (Marchantiophyta: Lejeuneaceae) from Asia, pp. 26-48 in Phytotaxa 358 (1) on page 44, DOI: 10.11646/phytotaxa.358.1.2, http://zenodo.org/record/13705766
MS Gr. class. c. 6 1321
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1506 col. 4. Philodemus, De rhetorica 3
Drawing by Carlo Orazi
A population-based Habitable Zone perspective
Creators: name: Zsom, Andras
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: What can we tell about exoplanet habitability if currently only the stellar properties, planet radius, and the incoming stellar flux are known? A planet is in the Habitable Zone (HZ) if it harbors liquid water on its surface. The HZ is traditionally conceived as a sharp region around stars because it is calculated for one planet with specific properties. Such an approach is limiting because the planets' atmospheric and geophysical properties, which influence the presence of liquid water on the surface, are currently unknown but expected to be diverse. A statistical HZ description is outlined which does not favor one planet type. Instead the stellar and planet properties are treated as random variables and a continuous range of planet scenarios are considered. Various probability density functions are assigned to each random variable, and a combination of Monte Carlo sampling and climate modeling is used to generate synthetic exoplanet populations with known surface climates. Then, the properties of the liquid water bearing subpopulation is analyzed. Given our current observational knowledge, the HZ takes the form of a weakly-constrained but smooth probability function. The HZ has an inner edge but a clear outer edge is not seen. Currently only optimistic upper limits can be derived for the potentially observable HZ occurrence rate. Finally, we illustrate through an example how future data on exoplanet atmospheres will help to narrow down the probability that an exoplanet harbors liquid water and we identify the greatest observational challenge in the way of finding a habitable exoplanet.
description: published, ApJ, 813, 9
The Nationalist Meanings of 20th Century Olympic Games:  Conflicting National Identities and Memories in Mexico, Germany, and America
Creators: name: Bell, Mary Grady
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: In 1896, Pierre de Coubertin established the modern Olympic Games to foster global "mutual understanding with a spirit of friendship and fair play," according to the International Olympic Committee. Despite his hopes, the Games have long been used as political attempts to create coherent, modern images of host nations. Host nations have used media as diverse as architecture and newspapers to introduce themselves to a global audience and to create common national identities. Opposing groups within these host nations have also used the world stage of the Olympics to air their grievances, though. As seen in the portrayal of conflicting strains of nationalism in the Olympics of Mexico City 1968, Munich 1972, and Atlanta 1996, the international media provided confirmation or denial for one of these narratives. Analysis of international newspaper, magazine, and TV accounts proves that in Mexico City and Atlanta, conflicting views of the host nation developed internally, and the international press validated one of these views; in the Munich Games, the international press struck down the idealized view of the German nation and inspired fractures from within the nation. In all three scenarios, the "winner" of this nationalism contest was defined by who succeeded in drawing the most international support.
Dynamics and entanglement of a membrane-in-the-middle optomechanical system in the extremely-large-amplitude regime
Creators: name: Gao, Ming
name: Lei, Fuchuan
name: Du, ChunGuang
name: Long, Gui Lu
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The study of optomechanical systems has attracted much attention, most of which are concentrated in the physics in the small-amplitude regime. While in this article, we focus on optomechanics in the extremely-large-amplitude regime and consider both classical and quantum dynamics. Firstly, we study classical dynamics in a membrane-in-the-middle optomechanical system in which a partially reflecting and flexible membrane is suspended inside an optical cavity. We show that the membrane can present self-sustained oscillations with limit cycles in the shape of sawtooth-edged ellipses and exhibit dynamical multistability. Then, we study the dynamics of the quantum fluctuations around the classical orbits. By using the logarithmic negativity, we calculate the evolution of the quantum entanglement between the optical cavity mode and the membrane during the mechanical oscillation. We show that there is some synchronism between the classical dynamical process and the evolution of the quantum entanglement.
description: 9 pages, 7 figures. To appear in Sci China-Phys Mech Astron
Planetary Nebulae: What can they tell us about close binary evolution?
Creators: name: Jones, David
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is now clear that a binary pathway is responsible for a significant fraction of planetary nebulae, and the continually increasing sample of known central binaries means that we are now in a position to begin to use these systems to further our understanding of binary evolution. Binary central stars of planetary nebulae are key laboratories in understanding the formation processes of a wide-range of astrophysical phenomena - a point well-illustrated by the fact that the only known double-degenerate, super-Chandrasekhar mass binary which will merge in less than a Hubble time is found inside a planetary nebula. Here, I briefly outline our current understanding and avenues for future investigation.
description: To appear in the proceedings of "Physics of Evolved Stars 2015 - A conference dedicated to the memory of Olivier Chesneau" http://poe2015.sciencesconf.org/
MS Gr. class. c. 6 1322
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1506 col. 5. Philodemus, De rhetorica 3
Drawing by Carlo Orazi
MS Gr. class. c. 6 1323
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1506 col. 6. Philodemus, De rhetorica 3
Drawing by Carlo Orazi
Computing all possible graph structures describing linearly conjugate realizations of kinetic systems
Creators: name: Acs, Bernadett
name: Szederkenyi, Gabor
name: Tuza, Zsolt
name: Tuza, Zoltan Andras
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: Numerical Analysis (math.NA)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: G.1.7; G.2.2; J.2
subject: 80A30, 90C35

description: In this paper an algorithm is given to determine all possible structurally different linearly conjugate realizations of a given kinetic polynomial system. The solution is based on the iterative search for constrained dense realizations using linear programming. Since there might exist exponentially many different reaction graph structures, we cannot expect to have a polynomial-time algorithm, but we can organize the computation in such a way that polynomial time is elapsed between displaying any two consecutive realizations. The correctness of the algorithm is proved, and possibilities of a parallel implementation are discussed. The operation of the method is shown on two illustrative examples.
description: 19 pages, 7 figures
From Family Court to Criminal Court: The Impact of Child Maltreatment on Arrest
Creators: name: Gosrani, Chiraayu
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: In this paper, I explore the impact that child maltreatment has on the development of
criminal behavior and arrest. Using data from the National Longitudinal Study of Adolescent to
Adult Health (Add Health), we estimate whether the occurrence, frequency and timing of various
forms of abuse have significant impacts on the probability or hazard of arrest. Our results suggest
that the occurrence of child maltreatment increases the likelihood of arrest. Individuals who have
experienced maltreatment more frequently are more likely to be arrested, and maltreated individuals
are also more likely to be arrested earlier in their life than individuals who have never been
maltreated. Maltreatment also increases the hazard of arrest by a given age.
Brightest Cluster Galaxies in the Extended GMRT radio halo cluster sample. Radio properties and cluster dynamics
Creators: name: Kale, Ruta
name: Venturi, Tiziana
name: Cassano, Rossella
name: Giacintucci, Simona
name: Bardelli, sandro
name: Dallacasa, Daniele
name: Zucca, Elena
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Brightest Cluster Galaxies (BCGs) show exceptional properties over the whole electromagnetic spectrum. Their special location at the centres of galaxy clusters raises the question of the role of the environment on their radio properties. To decouple the effect of the galaxy mass and of the environment in their statistical radio properties, we investigate the possible dependence of the occurrence of radio loudness and of the fractional radio luminosity function on the dynamical state of the hosting cluster. We studied the radio properties of the BCGs in the Extended GMRT Radio Halo Survey (EGRHS). We obtained a statistical sample of 59 BCGs, which was divided into two classes, depending on the dynamical state of the host cluster, i.e. merging (M) and relaxed (R). Among the 59 BCGs, 28 are radio-loud, and 31 are radio--quiet. The radio-loud sources are located favourably located in relaxed clusters (71\%), while the reverse is true for the radio-quiet BCGs, mostly located in merging systems (81\%). The fractional radio luminosity function (RLF) for the BCGs is considerably higher for BCGs in relaxed clusters, where the total fraction of radio loudness reaches almost 90\%, to be compared to the $\sim$30\% in merging clusters. For relaxed clusters, we found a positive correlation between the radio power of the BCGs and the strength of the cool core, consistent with previous studies on local samples. Our study suggests that the radio loudness of the BCGs strongly depends on the cluster dynamics, their fraction being considerably higher in relaxed clusters. We compared our results with similar investigations, and briefly discussed them in the framework of AGN feedback.
description: 12 pages, 6 figures, 3 tables, A&A accepted
Booklet on recommendations to farmers, mills and politicians
Creators: name: Gallego, Jose Lietor
name: Ruiz, Roberto García
Publisher: name: Zenodo
Year: 2023
Subjects: Policy recommendations
Olive grove sustainability
Ecological transition

description: Following the results obtained by SUSTAINOLIVE research, a catalog of recommendations was designed with the aim of developing policies that stimulate and enhance sustainable management practices in olive groves in the short and medium term.
Obsessive-compulsive symptoms and scrupulosity among Muslims living in the United States
Creators: name: Akbar, Saima A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Rates of scrupulosity (OC symptoms related to beliefs about sin and/or morality) tend to
be higher in Muslim-majority countries, even though OCD prevalence seems to be generally
consistent across many countries. American Muslims (N = 32) participants completed an online
self-report battery in order to expand knowledge about obsessive-compulsive (OC) symptom
presentation in American Muslims in relation to other factors, such as immigration status,
religiosity, and culture. There was no correlation between religiosity and scrupulosity, although
there was a significant correlation between religious compulsions and OC symptoms but not
religious identity or immigration status. Of the studied variables, general distress and religious
compulsions emerged as a significant predictor of OC symptoms but not religious identity or
immigration status. Clinical implications and limitations are discussed.
Examining the Link between Receptive and Expressive Language Delay and its Effects on Externalized Behaviors in Young Children, Highlighting Strategies Teachers and Schools Can Implement to Promote Social Emotional Competence through Self-Regulation
Creators: name: Larson Goodnight, Hannah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Teachers report challenging and disruptive student behavior as the cause of increased stress. Challenging student behaviors are predictive of future problems such as dropping out of school or expulsion. Language ability is important for regulating attention and behavior and establishing positive relationships with adults and peers. Many children who exhibit challenging behaviors have existing language delays and must be taught functional skills to communicate. Twenty-four studies published within the last four years that examined strategies that teachers can use in early childhood classrooms to curb challenging student behaviors were reviewed. Research demonstrated that prosocial skills should be taught and modeled to children who may not have these skills within their repertoires. Teachers should offer many opportunities for children to practice these skills while providing specific feedback and praise. Pre-service teachers should be informed about classroom management strategies and they should be thoughtfully employed within their classrooms to eliminate opportunities for disruptive behaviors. Evidence-based instructional practices should also be used within the classroom to promote the prevention of challenging student behavior. A school-wide model of behavior supports, including functional behavioral analysis, is an evidence-based method of individualizing interventions for all children.
title: Kaibab Plateau Bison Herd Seasonal Ranges
Creators: name: Salganek, Skye
name: Terwilliger, Miranda
name: Schoenecker, Kathryn
Publisher: name: National Park Service
Year: 2022
Subjects: subject: FOS: Biological sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: These data represent the Kaibab Plateau bison herd's seasonal ranges on the North Rim of Grand Canyon National Park and the Kaibab National Forest. The Kaibab Plateau bison make seasonal movements from summer to winter habitat and range widely during transitional seasons.

Bison were captured annually between 2019 and 2022 with a corral trap using low-stress handling techniques (Hibbard 2021) in accordance with an approved USGS animal use protocol (FORT IACUC 2018-14 and NPS Concurrence Institute of Animal Care and Use Committee USGS, IMR_GRCA_Schoenecker_Bison_2018.A2). Bison were immobilized using a hydraulic squeeze chute and outfitted with Iridium global positioning system (GPS) tracking collars (Telonics Inc, model: TGW-4477 Iridium, Mesa, AZ, USA), targeting older males and female matriarchs. Bison were released from the capture facility immediately following collaring. Collars were programmed to release from bison following two years of wear so that the animals were not burdened with the weight of the collar beyond the lifespan of the battery. Locations collected every two hours from collared male and female bison during the focal period of September 15, 2019 – April 30, 2022 were used to complete a resource selection function analysis. Data from the first five days following each animal’s capture were omitted to avoid bias of animal movements from capture events.

Bison seasonal designations are based on their movements. An animation created in the ‘moveVis’ package in R (R Core Team, Schwalb-Willmann et al. 2020) was used to visually estimate the date range for each biological season. The range polygons were created using location data from GPS-collared female and male bison (n = 43) and kernel density techniques (R Core Team, Calenge 2021). Note that polygons represent a 95% utilization distribution area. Last updated on 5/3/2022.
MS Gr. class. c. 6 1324
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1506 col. 7. Philodemus, De rhetorica 3
Drawing by Carlo Orazi
Gendered Climate Justice: Identifying Vulnerability in Tanzanian Waterscapes
Creators: name: Seagle, Emma Elizabeth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Water access is a critical issue on the global scale. The World Health Organization estimates that 780 billion people lack access to proper water and sanitation facilities worldwide (West, Hirsch, and El-Sadr, 2013). Access to safe drinking water and proper sanitation is a basic universal need and human right. Yet, inadequate water supply and water contamination account for one third of all deaths in developing countries and pose a serious threat to the achievement of the Millennium Development Goals (MDG), a set of targets established by the U.N. for 2015 (Kiongo, 2005). Water access is key to building capacity, creating markets, adapting to changing environments, promoting education, and improving health and overall human development (Bour, 2004). Adequate water supply also contributes to food security and positive social development. According to the U.N, in 2012, sub-Saharan women spent roughly 200 million hours per day collecting water, summing to 40 billion hours in one year (United Nations, 2012). The issue of water security is particularly prominent in Africa where, in 2005, a mere 38% of countries were on track to achieve water related MDGs. Specifically goals to reduce the proportion of people living without access to safe drinking water by 50% have not been met (Kiongo, 2005). Tanzania has achieved minor progress towards these goals; however, is not expected to attain the originally established U.N. criteria by the 2015 deadline (Tanzania, 2011). This study investigates the impact of water infrastructure and women’s empowerment on women’s health and well-being, and identifies vulnerability through combining these relationships with climate change predictions.
Stellar Dynamics around a Massive Black Hole II: Resonant Relaxation
Creators: name: Sridhar, S.
name: Touma, Jihad R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a first-principles theory of Resonant Relaxation (RR) of a low mass stellar system orbiting a more massive black hole (MBH). We first extend the kinetic theory of Gilbert (1968) to include the Keplerian field of a black hole of mass $M_\bullet$. Specializing to a Keplerian stellar system of mass $M \ll M_\bullet$, we use the orbit-averaging method of Sridhar & Touma (2015; Paper I) to derive a kinetic equation for RR. This describes the collisional evolution of a system of $N \gg 1$ Gaussian Rings in a reduced 5-dim space, under the combined actions of self-gravity, 1 PN and 1.5 PN relativistic effects of the MBH and an arbitrary external potential. In general geometries RR is driven by both apsidal and nodal resonances, so the distinction between scalar-RR and vector-RR disappears. The system passes through a sequence of quasi-steady secular collisionless equilibria, driven by irreversible 2-Ring correlations that accrue through gravitational interactions, both direct and collective. This correlation function is related to a `wake function', which is the linear response of the system to the perturbation of a chosen Ring. The wake function is easier to appreciate, and satisfies a simpler equation, than the correlation function. We discuss general implications for the interplay of secular dynamics and non-equilibrium statistical mechanics in the evolution of Keplerian stellar systems toward secular thermodynamic equilibria, and set the stage for applications to the RR of axisymmetric discs in Paper III.
description: Accepted for publication in MNRAS (final version)
The role of three-body interactions in two-dimensional polymer collapse
Creators: name: Bedini, A
name: Owczarek, A L
name: Prellberg, T
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Various interacting lattice path models of polymer collapse in two dimensions demonstrate different critical behaviours. This difference has been without a clear explanation. The collapse transition has been variously seen to be in the Duplantier-Saleur $θ$-point university class (specific heat cusp), the interacting trail class (specific heat divergence) or even first-order. Here we study via Monte Carlo simulation a generalisation of the Duplantier-Saleur model on the honeycomb lattice and also a generalisation of the so-called vertex-interacting self-avoiding walk model (configurations are actually restricted trails known as grooves) on the triangular lattice. Crucially for both models we have three and two body interactions explicitly and differentially weighted. We show that both models have similar phase diagrams when considered in these larger two-parameter spaces. They demonstrate regions for which the collapse transition is first-order for high three body interactions and regions where the collapse is in the Duplantier-Saleur $θ$-point university class. We conjecture a higher order multiple critical point separating these two types of collapse.
description: 17 pages, 20 figures
Dynamical structure factor of magnetic Bloch oscillations at finite temperatures
Creators: name: Syljuåsen, Olav F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Domain-walls in one-dimensional Ising ferromagnets can undergo Bloch oscillations when subjected to a skew magnetic field. Such oscillations imply finite temperature non-dispersive low-frequency peaks in the dynamical structure factor which can be probed in neutron scattering. We study in detail the spectral weight of these peaks. Using an analytical approach based on an approximate treatment of a gas of spin-cluster excitations we give an explicit expression for the momentum- and temperature-dependence of the spectral weights. Generally the spectral weights increase with temperature and approaches the same order of magnitude as the spin-wave spectral weights at high temperatures. We compare the analytical expression to numerical exact diagonalizations and find that it can, without any adjustable parameters, account for the temperature and momentum-transfer dependence of the numerically obtained spectral weights in the parameter regime where the ratio of magnetic fields $h_x/h_z \ll 1$ and the temperature is $h_x < T
description: 8 pages, 5 figures
An addendum to: Analytically Riesz operators and Weyl and Browder type theorems
Creators: name: Boasso, Enrico
Publisher: name: arXiv
Year: 2015
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 47A53

description: In this note a characterization of anallytically Riesz operators is given. This work completes the article [1].
description: 4 pages, original research article
Dividing the Donkey: Modern Racism and the Dissolution of North Carolina's Democratic Party, 1963-1968
Creators: name: Vogel, Peter
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Part social, part political history, this work seeks to integrate the voices of ordinary white Tar Heels and their elected officials. Their relationship was dynamic. Politicians both responded to white public opinion on race and helped shape the acceptable contours of those opinions. Though every Tar Heel possessed a nuanced, unique and sometimes contradictory set of opinions on race, during the mid-1960s, most white North Carolinians could be classified either as a racial liberal, racial conservative, white supremacist, or as an advocate for managed race relations. Racial liberals believed in using the power of the government to move the nation toward racial equality. Racial conservatives professed an insincere desire for racial equality but flatly rejected the role of the government in achieving this end. White supremacists believed in the inherent inequality of different races. Finally, proponents of managed race relations worked to make life tolerable for blacks, but excluded them from the political sphere and supported their continued subordination. As managed race relations came under fire both from black activists and white politicians during 1963, most of its proponents became racial conservatives. These terms are not perfect descriptors, but North Carolinians of the era would understand this division and many used a similar taxonomy to discuss the racial issues of their day.
Stellar Dynamics around a Massive Black Hole I: Secular Collisionless Theory
Creators: name: Sridhar, S.
name: Touma, Jihad R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a theory in three parts, of the secular dynamics of a (Keplerian) stellar system of mass $M$ orbiting a black hole of mass $M_\bullet \gg M$. Here we describe the collisionless dynamics; Papers II and III are on the (collisional) theory of Resonant Relaxation. The mass ratio, $\varepsilon = M/M_\bullet \ll 1$, is a natural small parameter implying a separation of time scales between the short Kepler orbital periods and the longer orbital precessional periods. The collisionless Boltzmann equation (CBE) for the stellar distribution function (DF) is averaged over the fast Kepler orbital phase using the method of multiple scales. The orbit-averaged system is described by a secular DF, $F$, in a reduced phase space. $F$ obeys a secular CBE that includes stellar self-gravity, general relativistic corrections up to 1.5 post-Newtonian order, and external sources varying over secular times. Secular dynamics, even with general time dependence, conserves the semi-major axis of every star. This additional integral of motion promotes extra regularity of the stellar orbits, and enables the construction of equilibria, $F_0$, through a secular Jeans theorem. A linearized secular CBE determines the response and stability of $F_0$. Spherical, non-rotating equilibria may support long-lived, warp-like distortions. We also prove that an axisymmetric, zero-thickness, flat disc is secularly stable to all in-plane perturbations, when its DF, $F_0$, is a monotonic function of the angular momentum at fixed energy.
description: Accepted for publication in MNRAS (final version)
Factors that influence youth participation in environmental activism
Creators: name: Feldman, Hannah R.
Publisher: name: The Australian National University
Year: 2023

description: The School Strike 4 Climate movement began with 16-year-old Greta Thunberg, protesting for stronger climate action outside Swedish parliament, in 2018. Since then, millions of global students have joined the School Strike, peaking on September 20, 2019, with roughly 4 million protestors worldwide and 300,000 in Australia. Despite sustained and growing support, research investigating how young people come to be involved in such events is still in its infancy. The purpose of this research was to explore factors that influence attendance at - or abstention from - a School Strike 4 Climate event. The School Strike was used as a case study for how pre-voters engage with politics and climate change, providing insights on the barriers and enablers of environmental and political participation for teenagers in Australia. The study used surveys (n=174) and focus groups (4 groups, n=21) with 15-20-year-old Australians to explore social and individual factors impacting protest attendance. Qualitative data was used to investigate prominent themes from the quantitative data, and non-attendees of Strikes were deliberately included as a crucially missing voice in existing research. Results showed that School Strikers were largely motivated by environmental and political factors. Rather than a 'mirror' to participation, abstention followed a stand-alone decision-making process, where schoolwork was typically prioritised above political action. Support from friends and family also strongly correlated with protest attendance. Overall, participants were engaging with climate change as a highly politicised issue, and non-participants faced distinct barriers and decisions that lead to abstention. Inclusion of both Strikers and non-Strikers in this research enabled exploration of the diverse perspectives and independence afforded to young people in the context of climate activism. This thesis highlighted that adult governance of young people's lives can have complex and mixed effects, where parents, teachers or governments can all have enabling, blocking or neutral impacts on youth political engagement. Adult governance also influenced the way in which teenagers saw their climate change education, and how perspectives important to them were rarely reflected in formal schooling. This research contributed an enhanced understanding of enablers and barriers to environmental and political participation for Australian pre-voters, and how their shifting political repertoire is inextricably linked to their engagement with climate change. This insight enables governing adults to better include and consider youth perspectives in climate change and political decision making, ensuring that pathways taken today are aligned with - and accessible for - those that will be in power tomorrow.
The Impact of Conditional Cash Transfer Design on Program Corruption Rates: A Case Study of Mexico and Brazil
Creators: name: Richardson, William
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: The low level of corruption within these massive social programs, when contrasted with the relatively high level of corruption in these countries’ federal governments, begs the question of how CCT programs have had significantly lower levels of corruption than the federal governments of the countries in which they have been implemented in. This paper hopes to answer this question by analyzing the ways in which CCT programs have been implemented in several countries and examining how their implementation could lead to a low level of corruption within these specific programs.
Due to the popularity of these Conditional Cash Transfer programs and their increasing use among developing countries, it is incredibly important to analyze how they could be implemented so as to minimize corruption. It is particularly important to do so because many of the countries that have implemented or plan on implementing these programs are developing countries who have had a history of struggling with corruption in the past.
Quench dynamics of dipolar fermions in a one-dimensional harmonic trap
Creators: name: Graß, Tobias
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a system of few fermions in a one-dimensional harmonic trap, and focus on the case of dipolar majority particles in contact with a single impurity. The impurity is used both for quenching the system, and for tracking the system evolution after the quench. Employing exact diagonalization, we investigate relaxation and thermalization properties. In the absence of dipolar interactions, the system is near integrability, and the dynamics remains oscillatory even on long time scales. On the other hand, repulsive as well as attractive dipolar interactions lead to quick relaxation to the diagonal ensemble average which is significantly different from corresponding thermal averages. A Wigner-shaped level spacing distribution indicates level repulsion and thus chaotic dynamical behavior due to the presence of dipolar interactions.
description: 10 pages, 6 figures
Caregiver and Teacher Expectations Predict GPA and College Search Behaviors in African-American Adolescents
Creators: name: Smith, Mary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: The purpose of this work was to examine how caregiver and teacher educational attainment expectations for fifth grade students relate to those students’ academic performance and college preparation behaviors in their senior year of high school. Using an African-American student sample, this study shed light on predictors of educational outcomes for African-American students. Data from 563 African-American students in Grades 5 and 12 as well as their female caregivers and teachers were analyzed. The results indicated that teacher educational expectations for 5th grade students were a significant predictor of students’ GPA and college search behaviors in Grade 12. Caregiver educational expectations did not predict either students’ Grade 12 college search behaviors or Grade 12 GPA. Teacher expectations were significantly and positively correlated with students’ school engagement in Grade 5. These findings supplement previous research on the external, social factors related to academic performance and attainment for African-American students.
MS Gr. class. c. 6 1325
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1506 col. 8. Philodemus, De rhetorica 3
Drawing by Carlo Orazi
Augmentation of Psychological Treatments with Cognitive Control Training (CCT)
Creators: name: Van den Bergh, Nathan
name: Koster, Ernst
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Anxiety
subject: Clinical Psychology
subject: Cognitive Psychology
subject: Depression
subject: Psychology
subject: FOS: Psychology
subject: Psychopathology
subject: Psychotherapy
subject: Repetitive Negative Thinking
subject: Rumination
subject: Worry

description: This projects aims to further investigate the potential of CCT in reducing Repetitive Negative Thinking and depressive symptoms, specifically when it is used as a supplementary strategy (on top of more established treatments).
Signaling Specificity in Plant G Protein Networks
Creators: name: Stoian, Richard
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Heterotrimeric G-protein complexes couple extracellular signals perceived by a plasma membrane
receptor to cytoplasmic target proteins in order to regulate shoot and root development and to
mediate various stress and hormone responses in plants. The Arabidopsis genome encodes one canonical
Gα protein that binds the obligate Gβγ dimer and three non-canonical Extra-Large Gα
proteins (XLG1 through 3), the latter, of which the function remains unknown. Specifically, it is
not known if the XLG proteins have a Gα subunit-like signaling property. The physiological
function of XLG proteins in the G protein signaling network was elucidated genetically using
Arabidopsis loss-of-function mutants of xlg1/xlg2/xlg3 triple (hereafter, “triple”)
and gpa1/xlg1/xlg2/xlg3 quadruple (hereafter “quad”) mutants. Five independent physiological
traits were analyzed: etiolated hypocotyl length, root length, lateral root formation, endoplasmic
reticulum (ER) stress response, and CLAVATA3 hormonal peptide response. The triple and quad
mutations decreased hypocotyl length relative to wildtype plants, although to a lesser degree than
the Gβ mutant. The quad mutant phenocopied the Gβ mutant root, indicating that an XLG/Gβγ signal
suppresses root lengths in parallel with the canonical Gαβγ heterotrimer. XLG mutants also
exhibited decreased survival against ER-induced stress, along with Gβ mutants, suggesting that
the XLG/Gβγ complex transmits an ER stress tolerance signal. It is concluded that the
non-canonical XLG proteins biologically function with Gβγ dimer and confers signaling
specificity in heterotrimeric G protein signaling network in plants. Thus, despite the unusual
structure of XLG proteins, they may biochemically partner with the Gβγ dimer.