cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Privileged Pages: Contextualizing the Realities, Challenges, and Successes of Teaching Canonical British Literature in Culturally Responsive Ways
Creators: name: Bissonnette, Jeanne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Though research suggests a dichotomous relationship between transformative pedagogies and canonicity, these conversations often fall short of comprehensively nuancing the factors that shape these pedagogical and curricular tensions. Buttressed by foundational theories of culturally responsive pedagogies (Gay, 2010; Ladson-Billings, 1995; Villegas & Lucas, 2002), this collective case study advances the field and galvanizes the professional discourse around the canon by querying the extent to which teachers perform culturally responsive practices in the canonical British literature classroom—the most enduring and exclusionary curriculum of the secondary English domain—and examining the factors that inhibit, promote, and otherwise complicate these practices. Data collected from over five months of classroom observations and forty interviews amalgamate to tell the story of Sam, a white male in his fifth year of teaching who engages his predominantly African American students in race-related discussions almost daily; Geneva, an African American female with 14 years of experience who must engage culturally responsive teaching in more subversive ways and private spaces so as not to unsettle the parents, administration, and students at her predominantly white school; and Allison, a white female in her eighth year of teaching at an International Baccalaureate school who insists her provocative approach to pedagogy is merely “good teaching.” Data were coded for their alignment with the 11 characteristics of the Multicultural Teacher Capacity Scale (Cain, 2015), a five-tiered progressive scale of culturally responsive teaching practices and characteristics. Deductive Qualitative Analysis (Gilgun, 2010) guided the investigation of the data. This work concludes by urging practitioners to critically reflect on the ways in which they might modify their instructional practices to better account for the incongruences between traditional curricula and their culturally and linguistically diverse students. Further implications, including the possibilities of a differentiated model of teacher preparation that supports literacy practitioners as they develop and hone the skills, knowledge, and dispositions needed to perform culturally responsive pedagogies in their classrooms, is also discussed.
On a 1D nonlocal transport equation with nonlocal velocity and subcritical or supercritical diffusion
Creators: name: Lazar, Omar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We study a 1D transport equation with nonlocal velocity with subcritical or supercritical dissipation. For all data in the weighted Sobolev space $H^{k}(w_{λ,κ}) \cap L^{\infty},$ with $k=\max(0,3/2-α)$ and $w_{λ, κ}$ is a given family of Muckenhoupt weights. We prove a global existence result in the subcritical case $α\in (1,2)$. We also prove a local existence theorem for large data in $H^{2}(w_{λ, κ})\cap L^{\infty}$ in the supercritical case $α\in (0,1)$. The proofs are based on the use of the weighted Littlewood-Paley theory, interpolation along with some new commutator estimates.
description: 18 pages
Realizable classes and embedding problems
Creators: name: Tsang, Cindy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $K$ be a number field with ring of integers $\mathcal{O}_K$ and let $G$ be a finite group. Given a $G$-Galois $K$-algebra $K_h$, let $\mathcal{O}_h$ denote its ring of integers. If $K_h/K$ is tame, then a classical theorem of E. Noether implies that $\mathcal{O}_h$ is locally free over $\mathcal{O}_KG$ and hence defines a class in the locally free class group of $\mathcal{O}_KG$. For $G$ abelian, by combining the work of J. Brinkhuis and L. McCulloh, we prove that the structure of the collection of all such classes is related to the study of embedding problems.
description: Some of the sections were rewritten to improve the exposition; more explanations are added and several typos are now fixed
A Worm So Vile: Christological Humility and the Affirmation of the Self in the Works of Teresa de Jesús
Creators: name: Gismondi, Michael Anthony
Publisher: name: University of Illinois at Chicago
Year: 2023

description: Readers of Santa Teresa de Jesús (1515-1582) are often confounded by her frequent self-disparaging remarks. Following Alison Weber’s Rhetoric of Femininity (1990), many critics have regarded these utterances of wretchedness and humility as rhetorical legerdemain, which Teresa employed to navigate the patriarchal atmosphere of the Spanish Inquisition. Yet, in doing so, Teresa would have done a disservice to women by reinforcing feminine stereotypes and ideologies of women’s subordination. In this dissertation, however, I explore Teresa as a theologian, where her utterances of wretchedness and humility are integral elements of her Christ-centered worldview. My thesis is that Teresa’s humility is Christological and, therefore, affirms the self rather than negates it. As a Christological virtue, Teresa’s humility is essential for the self’s teleological fulfillment. It is the catalyst for its restoration, for her spiritual poverty culminates in spiritual wealth: the soteriological process that reconstitutes the fallen self, reorients it to God, and restores the agape relationship for which it was created. In such a reading, the rhetorical effect of Teresa’s expressions of wretchedness would result from emphasis rather than exaggeration. But in that case, humility allows for subversion, not of Scripture or of the Church, but of interpretations of Scripture that would limit women’s public participation; for if every self is spiritually empty before God, the result is an ontological leveling of all humanity. Simply, women cannot have more nothing than men. They, therefore, cannot be spiritually inferior. In this way, Teresa wrote a theology sanctioned by the Church to subvert misogynistic dogma within the Church. Furthermore, current research on the role of Christian theology in the development of modern liberalism allows for such a reading. The ideological consequences of her Christology—namely, 1) an ontological equality that presupposes civil equality and 2) a circle of obligation that is universal rather than local—became indispensable to forming the concept of the modern individual and autonomy in the secular West. As such, Teresa’s writings (though not necessarily Teresa herself) represent a progression of Western thought that steadily undermined ideologies of subordination and made conceptually possible a vision of society established on civic equality.
Who’s on the playing field?: a journalistic series about homosexuality in sports
Creators: name: Conlin, Brian
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: The number of openly gay and lesbian athletes has boomed since the 1980s. The Gay Games is one example of this. The first Gay Games in 1982 had 1,300 participants. By 1994, the Gay Games drew 11,000 participants. In three articles, this master's thesis examines various aspects of gays and lesbians in sports. The first article covers the Gay Games. It includes information about its supporters and protestors, a brief history and a look ahead to the upcoming Gay Games and beyond. The second article profiles a rugby player on the Carolina Kodiaks, one of two gay rugby teams in North Carolina. The third article examines how journalists, especially those in sports departments, cover LGBT issues. The thesis aims to explore the issues of the gay and lesbian community as they pursue sports and to show that LGBT issues in sport will become more important as society becomes more tolerant.
Role of Entropy and Structural Parameters in the Spin State Transition of LaCoO$_3$
Creators: name: Chakrabarti, Bismayan
name: Birol, Turan
name: Haule, Kristjan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The spin state transition in LaCoO$_3$ has eluded description for decades despite concerted theoretical and experimental effort. In this study, we approach this problem using fully charge self-consistent Density Functional Theory + Embedded Dynamical Mean Field Theory (DFT+DMFT). We show from first principles that LaCoO$_3$ cannot be described by a single, pure spin state at any temperature. Instead, we observe a gradual change in the population of higher spin multiplets with increasing temperature, with the high spin multiplets being excited at the onset of the spin state transition followed by the intermediate spin multiplets being excited at the metal insulator transition temperature. We explicitly elucidate the critical role of lattice expansion and oxygen octahedral rotations in the spin state transition. We also reproduce, from first principles, that the spin state transition and the metal-insulator transition in LaCoO$_3$ occur at different temperature scales. In addition, our results shed light on the importance of electronic entropy in driving the spin state transition, which has so far been ignored in all first principles studies of this material.
Elementary solutions of the quantum planar two center problem
Creators: name: Leon, M. A. Gonzalez
name: Guilarte, J. Mateos
name: Mayado, M. de la Torre
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum problem of an electron moving in a plane under the field created by two Coulombian centers admits simple analytical solutions for some particular inter-center distances. These elementary eigenfunctions, akin to those found by Demkov for the analogous three dimensional problem, are calculated using the framework of quasi-exact solvability of a pair of entangled ODE's descendants from the Heun equation. A different but interesting situation arises when the two centers have the same strength. In this case completely elementary solutions do not exist.
description: Revised version. 10 pages, 4 figures
Band-Mott mixing hybridizes the gap in Fe$_2$Mo$_3$O$_8$
Creators: name: Park, K.
name: Pascut, G. L.
name: Khanal, G.
name: Yokosuk, M. O.
name: Xu, Xianghan
name: Gao, Bin
name: Gutmann, M. J.
name: Litvinchuk, A. P.
name: Cheong, S. -W.
name: Vanderbilt, D.
name: Haule, K.
name: Musfeldt, J. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We combined optical spectroscopy and first principles electronic structure calculations to reveal the charge gap in the polar magnet Fe$_2$Mo$_3$O$_8$. Iron occupation on the octahedral site draws the gap strongly downward compared to the Zn parent compound, and subsequent occupation of the tetrahedral site creates a narrow resonance near the Fermi energy that draws the gap downward even further. This resonance is a many-body effect that emanates from a flat valence band in a Mott-like state due to screening of the local moment - similar to expectations for a Zhang-Rice singlet, except that here, it appears in a semi-conductor. We discuss the unusual hybridization in terms of orbital occupation and character as well as the structure-property relationships that can be unveiled in various metal-substituted systems (Ni, Mn, Co, Zn).
Patterns of Prescription Opioid Use in US Households
Creators: name: Seamans, Marissa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Opioid prescriptions in the United States have increased 300% over the past two decades, totaling 238 million dispensed in 2011. Increased prescribing has been attributed to multiple factors including changes in pain treatment guidelines and pharmaceutical marketing, but given high rates of prescription drug sharing between family members, the household context of opioid use may also be a contributing factor. Using large healthcare claims databases from 2000-2014, we compared individual- and household-level characteristics of 27 million new users of prescription painkillers who shared their health plan with one or more household members. Furthermore, we estimated 1-year risks of opioid use for 18 million household members of new prescription opioid versus non-opioid users using weighted Kaplan-Meier estimators. Finally, we used a novel instrumental variable approach comparing household members of ankle fracture versus sprain patients to isolate potential person-to-person influence of opioid use from social and behavioral commonalities of household members. New users of prescription opioids were more likely to have a household member with a history of prescription opioid use than new users of non-opioids. The 1-year risk of opioid initiation for household members of opioid users was 11.83% (95% CI, 11.81, 11.85) compared to 11.11% (95% CI, 11.09, 11.14) for household members of non-opioid users. Compared to non-opioids, opioids prescribed to one household member was associated with 0.71% (95% CI: 0.68, 0.74) higher 1-year risk of prescription opioid use in another household member. Fracture patients were more likely to receive opioids than sprain patients (30-day risk difference: 23%). The 1-year risk of opioid initiation for household members of ankle fracture patients was 11.5% compared to 11.8% for household members of ankle sprain patients. Household members of fracture patients were less likely to initiate opioids than household members of sprain patients (1-year risk difference: -0.26%; 95% CI: -0.30, -0.22). The 1-year instrumental variable risk difference was -1.13% (95% CI: -1.29, -0.97). Prevalent and incident use of prescription opioids appeared to cluster within households, which may be due to person-to-person influence or other commonalities within households. Understanding potential mechanisms underlying these household patterns may inform policies for drug prescribing and control measures.
An In Vitro Study of Antimicrobial Properties of an Orthodontic Sealant/Adhesive Containing Selenium
Creators: name: Kelly, Michael Thomas
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: Introduction: White spot lesions are a significant risk to patients undergoing orthodontic therapy. Antimicrobial agents are thought to reduce the incidence of white spot lesions due to their ability to kill cariogenic bacteria. The objective of this study was to characterize and quantify the antimicrobial properties of an orthodontic bonding system containing selenium (SeLECT Defense) compared to traditional orthodontic materials. Methods: SeLECT Defense sealant, adhesive, and band cement were compared to eight other materials. An Agar Diffusion Assay was used to demonstrate the inhibition of growth of S. mutans and L. acidophilus. A Direct Contact Inhibition Assay was used to quantify the bactericidal nature of the materials. Results: Several materials, including SeLECT Defense products, demonstrated antimicrobial properties in the Agar Diffusion Assay. Several materials, but not SeLECT Defense products, demonstrated bactericidal properties in the Direct Contact Inhibition Assay. Conclusions: Orthodontic bonding materials, including those containing Selenium, possess antimicrobial properties.
Ab initio calculation of Hubbard parameters for Rydberg-dressed atoms in an one-dimensional optical lattice
Creators: name: Chougale, Yashwant
name: Nath, Rejish
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We obtain ab initio the Hubbard parameters for Rydberg-dressed atoms in an one-dimensional sinusoidal optical lattice in the basis of maximally localized wannier states. Finite range, soft-core inter-atomic interactions become the trait of Rydberg admixed atoms, which can be extended over many neighbouring lattice sites. On contrary to dipolar gases, where the interactions follow an inverse cubic law, the key feature of Rydberg-dressed interactions being the possibility of making neighbouring couplings to the same magnitude as that of the onsite ones. The maximally localized Wannier functions are typically calculated via spread minimization procedure [Phys. Rev. B 56, 12847 (1997)] and always found to be real functions apart from a trivial global phase when considering an isolated set of Bloch bands. For an isolated single Bloch band, the above procedure reduces to a simple quasi-momentum dependent unitary phase transformation. Here, in stead of minimizing the spread, we employ a diagonal phase transformation which eliminates the imaginary part of the Wannier functions. The resulting Wannier states are found to be maximally localized and in exact agreement with those obtained via spread minimization procedure. Using that we calculate the Hubbard couplings from the Rydberg-admixed interactions, including dominant density assisted tunnelling coefficients. In the end we provide realistic lattice parameters for the state of the art experimental Rydberg dressed Rubidium setup.
description: Submitted to J. Phys. B for special issue on Rydberg atomic physics
Interpreting the apparent lunar symbolism on a Fremont Indian pendant
Creators: name: Lundwall John
name: Mchugh John
name: Nagengast-Stevens Elizabeth
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2022
Subjects: archaeoastronomy
Fremont
lunar
standstill
major
calendar
pendant
Ancestral
Puebloan

description: The current article examines the apparent lunar iconography engraved on a rhyolite pendant recovered from a 13th century AD, Fremont Indian pithouse village known as "Five Finger Ridge". Symbols etched into the pendant resemble the waxing crescent, full, and waning crescent moon, thirteen circles equating with the thirteen lunations that are commenced during the solar year, and nineteen grooves etched along the outer edge of the disk-shaped pendant. The paper cites archaeological, ethnographic, rock art, and mitochondrial DNA data certifying that the Fremont people were of Ancestral Puebloan ethnicity and are therefore culturally and genetically related to the occupants of the modern pueblos located in the states of New Mexico and Arizona, USA. Ethnographic data from the late 19th and early 20th centuries demonstrates that all Puebloan villages were agriculturally dependent, utilized a solar-lunar calendar, and several conceptualized the year as having thirteen lunar months. The authors utilize the ethnographic data to interpret the two crescents and centrally drilled hole as the waxing crescent, full, and waning crescent moon, and the thirteen etched circles as full moons representing the thirteen-month lunar calendar reckoned at several historic pueblos. Finally, the paper proffers excavated exotic trade goods (olivella shells, turquoise) to demonstrate that the Fremont people of Five Finger Ridge were involved in longdistance trading relationships with Ancestral Puebloan communities that possessed unequivocal knowledge of the 18.61-year Major Lunar Standstill. From this the authors conclude that the pendant’s nineteen grooves represent the nineteen solar years needed for the completion of a Major Lunar Standstill cycle, wisdom they learned from long-distance trade relationships with Ancestral Puebloan people that were cognizant of this lunar circuit.
Tuberculosis stigma, AIDS stigma, and tuberculosis control in southern Thailand
Creators: name: Kipp, Aaron M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Tuberculosis (TB) remains one of the most important infectious diseases worldwide, with approximately one-third of the world's population infected with the Mycobacterium tuberculosis bacillus and more than 9 million new cases and 1.7 million deaths annually. Stigma may act as a barrier to TB care, treatment, and control in areas where quality services are available. Health-related stigma is defined as a social process or related personal experience characterized by exclusion, rejection, blame, or devaluation that results from experience or reasonable anticipation of an adverse social judgment because of specific health problem. Few measures of TB stigma exist, making it difficult to understand its determinants and effect on health behaviors. Data were collected in southern Thailand where culturally relevant TB and AIDS stigma scales were developed. Using these scales, a survey of 300 healthy community members, and a cohort of 480 newly diagnosed TB patients, the aims of this dissertation were to 1) to identify socio-demographic, TB knowledge, and clinical factors associated with TB stigma, 2) to estimate the association between stigma and patient delay in seeking care for TB symptoms, and 3) to estimate the effect of stigma on adherence to TB treatment. We found high levels of both TB and AIDS stigma, but few factors were identified that could contribute to TB stigma. Knowledge of the link between TB and AIDS, higher AIDS stigma, and knowing someone who died of TB were consistently associated with TB stigma. However, neither TB nor AIDS stigma had an overall effect on delay in seeking care for TB symptoms or adherence to treatment. Effects were observed within sub-groups of gender, HIV status, and presenting symptoms, where higher stigma increased delay and non-adherence among some, while decreasing delay and improving adherence among others. These findings have important implications for future stigma research and interventions. Specifically, stigma research conducted at the general population level (community or patient) may miss important effects. Future research should recognize that stigma may serve as a motivator or barrier, and therefore identify specific sub-groups in which stigma has an adverse effect and who would therefore benefit from stigma reduction interventions.
Mathematical model of inverted analemmatic sundial on the example of Belogorsk sundial of the Bronze Age
Creators: name: Vodolazhskaya Larisa Nikolaevna
Publisher: name: Archaeoastronomy and Ancient Technologies
Year: 2022
Subjects: cup marks
slab
sundial
inverted
analemma
Bronze Age
accuracy of time measurement
Srubnaya culture

description: This article proposes a mathematical model of an inverted analemmatic sundial, provides formulas for calculating the coordinates of their hour markers. On the example of the Belogorsk sundial, a method is described for determining the accuracy of time measurement using an inverted analemmatic sundial, in which cup marks are used as hour markers. The obtained value of the accuracy of time measurement with the help of the Belogorsk sundial is 5÷6 minutes and is quite good for a measuring instrument of the Bronze Age, and is also higher than the accuracy of time measurement with the help of a water clock. As a result, it is concluded that the hypothesis is confirmed that the invention of the sundial was associated with the need to improve the accuracy of time measurement using a water clock.
The origin of the UV/optical lags in NGC 5548
Creators: name: Gardner, Emma
name: Done, Chris
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The new multi-wavelength monitoring campaign on NGC 5548 shows clearly that the variability of the UV/optical lightcurves lags by progressively longer times at longer wavelengths, as expected from reprocessing of an optically thick disk, but that the timescales are longer than expected for a standard Shakura-Sunyaev accretion disc. We build a full spectral-timing reprocessing model to simulate the UV/optical lightcurves of NGC 5548. We show that disc reprocessing of the observed hard X-ray lightcurve produces optical lightcurves with too much fast variability as well as too short a lag time. Supressing the fast variability requires an intervening structure preventing the hard X-rays from illuminating the disc. We propose this is the disc itself, perhaps due to atomic processes in the UV lifting the photosphere, increasing the scale-height, making it less dense and less able to thermalise, so that it radiates low temperature Comptonised emission as required to produce the soft X-ray excess. The outer edge of the puffed-up Comptonised disc region emits FUV flux, and can illuminate the outer thin blackbody disc but while this gives reprocessed variable emission which is much closer to the observed UV and optical lightcurves, the light travel lags are still too short to match the data. We reverse engineer a solution to match the observations and find that the luminosity and temperature of the lagged emission is not consistent with material at the light travel lag distance responding to the irradiating flux (either FUV or X-ray) from the AGN. We conclude that the UV/optical lags of NGC 5548 are not the light travel time from X-ray reprocessing, nor the light travel time from FUV reprocessing, but instead could be the timescale for the outer blackbody disc vertical structure to respond to the changing FUV illumination.
description: 16 pages, 13 figures; accepted for publication in MNRAS
Evaluation of patient-centered outcomes comparing conventional, overdenture and palateless overdenture using guided maxillary implant placement
Creators: name: Schlam, Kimberly
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Improved quality of life following insertion of mandibular dental implants for dentures and removable partial dentures is well established. Whether similar favorable outcomes occur in the edentulous maxilla following rehabilitation is unknown. In this study of 15 maxillary edentulous patients, a fully guided approach to implant placement with new dentures ensured accurate transfer of implant position and correct angulation. To assess the impact of rehabilitation stages on quality of life, the 49-item Oral Health Impact Profile (OHIP-49) was administered at baseline and again at 10 weeks following three treatment stages: post-insertion of conventional denture; post-pickup of locators in complete denture; and post-insertion of palateless overdenture. Change in mean OHIP-49 severity score was tested for statistical significance using linear mixed models. OHIP-49 scores decreased significantly, signifying a reduction in the adverse impact of patient’s dental problems on oral health quality of life. These observations support treatment of the edentulous maxilla with a 4-implant retained overdenture.
Human papillomavirus associated oropharyngeal carcinomas in non-smokers and non-drinkers
Creators: name: Andrews, Elizabeth Ann
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Head and neck squamous cell carcinoma (HNSCC) affects 30,000 in the US with oropharyngeal carcinoma (OSCC) incidence increasing 3% annually (1973-2001). OSCC's are attributed to tobacco and alcohol, but patients without risk factors develop cancer. High-risk Human Papillomavirus (HPV) DNA has been consistently detected in 20% of HNSCC's and 50% of the OSCC's revealing OSCC's infectious nature. To date case-control studies of nonsmoker/nondrinkers (NS/ND) have not been performed. The purpose of this study was to determine whether high-risk HPV infection was significantly associated with NS/ND OSCC. This case control study consistently detected HPV 14/18 in OSCC (78% cases) of NS/ND with oropharynx preponderance (86%). A sub-study analyzing tumors from intimate partners detected identical strains of integrated HPV 16 within each couple. We have identified close links between HPV and OSCC in NS/ND, this justifies early identification of this virus as it may act as a crucial marker of malignancy susceptibility.
Androgen Receptor and Epidermal Growth Factor Signaling in Prostate Cancer
Creators: name: Ponguta, Liliana Angelica
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The androgen receptor (AR) is required for prostate cancer development and contributes to tumor progression following remission in response to androgen deprivation therapy. Epidermal growth factor (EGF) increases AR transcriptional activity at low levels of androgen in the CWR-R1 prostate cancer cell line derived from the castration-recurrent CWR22 prostate cancer xenograft. Our studies indicated that EGF does not regulate TIF2 mRNA levels and that TIF2 is required for AR transactivation induced by DHT and EGF in CWR-R1 cells. Real-time RT-PCR was used to determine that hK2 is a suitable marker for androgen-regulated gene transcription in CWR-R1 cells and that DHT does not up-regulate EGF transcription. Here we report that knockdown of AR decreases EGF stimulation of prostate cancer cell growth and demonstrate a mechanistic link between EGF and AR signaling. The EGF induced increase in AR transcriptional activity is dependent on phosphorylation at MAP kinase consensus site Ser-515 in the AR NH2-terminal region and at protein kinase C consensus site Ser-578 in the AR DNA binding domain. Phosphorylation at these sites alters the nuclear-cytoplasmic shuttling of AR and AR interaction with the Ku-70/80 regulatory subunits of DNA-dependent protein kinase. Abolishing AR Ser-578 phosphorylation by introducing an S578A mutation eliminates the AR transcriptional response to EGF, increases both AR binding of Ku-70/80 and nuclear retention of AR in association with hyperphosphorylation of AR Ser-515. AR-S578A did not transactivate the MMTV-Luc reporter and we show the negative regulatory element-1 in the long terminal repeat of MMTV mediates AR-induced transcription of that promoter. The results support a model in which AR transcriptional activity increases castration-recurrent prostate cancer cell growth in response to EGF by site-specific serine phosphorylation that regulates nuclear-cytoplasmic shuttling through interactions with the Ku-70/80 regulatory complex.
Discrete symmetries and Lieb-Schultz-Mattis theorem
Creators: name: Isoyama, Takaichi
name: Nomura, Kiyohide
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this study, we consider one-dimension (1D) quantum spin systems with the translation and discrete symmetries (spin reversal, space inversion and time reversal symmetries). By combining the continuous U(1) symmetry with the discrete symmetries and using the extended Lieb-Schultz-Mattis theorem \cite{Lieb-Schultz-Mattis-1961}\cite{Nomura-Morishige-Isoyama-2015}, we investigate the relation between the ground states, energy spectra and symmetries. For half-integer spin cases, we generalize the dimer and Néel concepts using the discrete symmetries, and we can reconcile the LSM theorem with the dimer or Néel states, since there was a subtle dilemma. Furthermore, a part of discrete symmetries is enough to classify possible phases. Thus we can deepen our understanding of the relation between the LSM theorem and the discrete symmetries.
Dynamic Error in Strain Induced Magnetization Reversal of Nanomagnets due to Incoherent Switching and Formation of Metastable States: A Size-dependent Study
Creators: name: Al-Rashid, Md Mamun
name: Atulasimha, Supriyo Bandyopadhyay Jayasimha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Modulation of stress anisotropy of magnetostrictive nanomagnets with strain offers an extremely energy-efficient method of magnetization reversal. The reversal process, however, is often incoherent and hence error-prone in the presence of thermal noise at room temperature. Occurrence of incoherent metastable states in the potential landscape of the nanomagnet can further exacerbate the error. Stochastic micromagnetic simulations at room temperature are used to understand and calculate energy dissipations and switching error probabilities in this important magnetization switching methodology. We find that these quantities have an intriguing dependence on nanomagnet size: small nanomagnets perform better owing to the fact that they are more resilient to the formation of metastable states and magnetization dynamics in them is more coherent. However, for a fixed stress anisotropy energy density, smaller nanomagnets will also have poorer resilience against thermal instability. Thus, the challenge in straintronics is to maximize the stress anisotropy energy density by developing materials and processes that yield the largest magnetostriction.
Characterisation of Foci Formed by the Telomeric Binding Protein POT-1 in the Developing C. elegans Embryo
Creators: name: Peng, Felix
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The ends of linear chromosomes are protected by telomeres, repetitive DNA caps that are bound by a complex of proteins collectively known as shelterin. POT1, a component of shelterin, binds telomeric single stranded DNA and is important in the regulation of telomeres. Little is known about the regulation of telomeres in the context of early development. Using the early C. elegans embryo as a model, I have developed a system for studying telomeres in live embryos. A transgene expressing POT-1::mCherry exhibits punctate foci at telomeres during early development. Detailed analysis of this transgene in a wild-type and a telomere lengthening background suggest that telomere length may affect POT-1 binding to telomeres.
Ax-Schanuel for Linear Differential Equations
Creators: name: Aslanyan, Vahagn
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 12H05, 12H20, 03C60

description: We generalise the exponential Ax-Schanuel theorem to arbitrary linear differential equations with constant coefficients. Using the analysis of the exponential differential equation by J. Kirby and C. Crampin we give a complete axiomatisation of the first order theories of linear differential equations and show that the generalised Ax-Schanuel inequalities are adequate for them.
description: 24 pages. Minor changes in Sections 1-5. Section 6 has been significantly modified
A Fault Tolerance Improved Majority Voter for TMR System Architectures
Creators: name: Balasubramanian, P
name: Prasad, K
Publisher: name: arXiv
Year: 2016
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: For digital system designs, triple modular redundancy (TMR), which is a 3-tuple version of N-modular redundancy is widely preferred for many mission-control and safety-critical applications. The TMR scheme involves two-times duplication of the simplex system hardware, with a majority voter ensuring correctness provided at least two out of three copies of the system remain operational. Thus the majority voter plays a pivotal role in ensuring the correct operation of the system. The fundamental assumption implicit in the TMR scheme is that the majority voter does not become faulty, which may not hold well for implementations based on latest technology nodes with dimensions of the order of just tens of nanometers. To overcome the drawbacks of the classical majority voter some new voter designs were put forward in the literature with the aim of enhancing the fault tolerance. However, these voter designs generally ensure the correct system operation in the presence of either a faulty function module or the faulty voter, considered only in isolation. Since multiple faults may no longer be excluded in the nanoelectronics regime, simultaneous fault occurrences on both the function module and the voter should be considered, and the fault tolerance of the voters have to be analyzed under such a scenario. In this context, this article proposes a new fault-tolerant majority voter which is found to be more robust to faults than the existing voters in the presence of faults occurring internally and/or externally to the voter. Moreover, the proposed voter features less power dissipation, delay, and area metrics based on the simulation results obtained by using a 32/28nm CMOS process.
A Model Republic? Trust and Authoritarianism on Tatarstan's Road to Autonomy
Creators: name: Balkind, Nicole
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Upon the collapse of the Soviet Union, ethnic groups such as Tatars and Chechens began to demand independence. From the cacophony of autonomy demands, Tatarstan emerged with the highest level of autonomy of Russia's 21 ethnic republics. This thesis argues that Tatarstan negotiated a relatively high amount of independence through elite trust and regional authoritarianism. The unique position of the Tatar leadership allowed them to maximize their autonomy by being seen as an ally of Moscow, having insider experience with the Russian legal system, and using President Shaimiev's authoritarianism as a bargaining chip. The control exercised by Shaimiev's regime was used to apply pressure to the federal authorities during a period when Moscow feared the unraveling of the fragile Russian Federation. Elite trust and regional authoritarianism acted upon each other to keep the balance of incentives for both Tatarstan and Russia and were thus integral to Tatarstan's path to autonomy.
FastQC results affiliated with the Master's thesis in Biology of Tyra Magold (24/07/2023)
Creators: name: Magold, Tyra
name: Lenk, Florian
Publisher: name: Zenodo
Year: 2023
Subjects: 16S
ITS
sequencing
FastQC

description: These quality assessments of paired end Illumina sequencing reads have been generated with FastQC for the botanical garden samples (starting with SMT or MMT), and for the vineyard samples (starting with DNA16S). For the botanical garden sample: 16S correlates to bacterial 16S rRNA amplicons, ITS for fungal. .
Scalar scattering via conformal higher spin exchange
Creators: name: Joung, E.
name: Nakach, S.
name: Tseytlin, A. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Theories containing infinite number of higher spin fields require a particular definition of summation over spins consistent with their underlying symmetries. We consider a model of massless scalars interacting (via bilinear conserved currents) with conformal higher spin fields in flat space. We compute the tree-level four-scalar scattering amplitude using a natural prescription for summation over an infinite set of conformal higher spin exchanges and find that it vanishes (modulo delta-function terms having support on measure-zero domain in phase space). Independently, we show that this vanishing of the scalar scattering amplitude is, in fact, implied by the global conformal higher spin symmetry of this model. We also discuss one-loop corrections to the four-scalar scattering amplitude.
description: 29 pages, 11 figures; v3: minor corrections
Effect of the electromagnetic environment on current fluctuations in driven tunnel junctions
Creators: name: Frey, Moritz
name: Grabert, Hermann
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We examine current fluctuations in tunnel junctions driven by a superposition of a constant and a sinusoidal voltage source. In standard setups the external voltage is applied to the tunneling element via an impedance providing an electromagnetic environment of the junction. The modes of this environment are excited by the time-dependent voltage and are the source of Johnson-Nyquist noise. We determine the autocorrelation function of the current flowing in the leads of the junction in the weak tunneling limit up to terms of second order in the tunneling Hamiltonian. The driven modes of the electromagnetic environment are treated exactly by means of a unitary transformation introduced recently. Particular emphasis is placed on the spectral function of the current fluctuations. The spectrum is found to comprise three contributions: a term arising from the Johnson-Nyquist noise of the environmental impedance, a part due to the shot noise of the tunneling element and a third contribution which comes from the cross-correlation between fluctuations caused by the electromagnetic environment and fluctuations of the tunneling current. All three parts of the spectral function occur already for devices under dc bias. The spectral function of ac driven tunneling elements can be determined from the result for a dc bias by means of a photo-assisted tunneling relation of the Tien-Gordon type. Specific results are given for an Ohmic environment and for a junction driven through a resonator.
description: 19 pages. 1 figure
Trait Mindfulness and Adolescent Depression: Emotional Awareness and Emotion Regulation as Mediators
Creators: name: Futch, William
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: In adults, trait mindfulness has been linked to lower rates of depression. However, there is little evidence for this relationship in adolescents. The goal of this study was to examine whether trait mindfulness was related to adolescent depression and what the underlying mechanisms of this relation might be, specifically looking at emotional awareness and emotion regulation. Mindfulness, depression, emotional awareness, and emotion regulation measures were completed by adolescent males. The results showed a robust, negative relationship between trait mindfulness and adolescent depression that was not explained by emotion regulation or emotional awareness. Trait mindfulness moderated the relationship between cognitive reappraisal and depression. These results suggest that trait mindfulness could be important in preventing depression in adolescent males. Future research should focus more fully on measuring trait mindfulness and its relations with other constructs, as well as reproducing this study with multiple time points and females.
MPEC 2023-O53 : DAILY ORBIT UPDATE (2023 July 22)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Condition Bias in Split-Alignment Systems: A Typological Study of North American Languages
Creators: name: Hicks, Caleb
Publisher: name: University of North Carolina at Chapel Hill Graduate School
Year: 2015
Subjects: subject: Linguistics
subject: FOS: Languages and literature
subject: Native American studies

description: This dissertation is a study of the strategies employed in the indigenous languages of North America for distinguishing grammatical subjects from grammatical objects. The degree to which intransitive subjects, transitive subjects, and direct objects are the same or different in their form is a property known as alignment. An interesting feature of alignment is that the sameness or difference of subjects and objects can vary according to certain grammatical conditions. This phenomenon, known as split-alignment, has been the focus of linguistic investigation from a range of theoretical perspectives since the 1970s. It is frequently remarked that some grammatical conditions are more likely than others to induce split-alignment. In this study, I survey fifteen indigenous North American languages in order to (a) determine all the grammatical conditions responsible for splitting alignment systems in these languages; and (b) identify the factors contributing to the preponderance of certain conditions over others. The fifteen languages are selected at random in a manner which controls for genetic and areal affiliation. I determine that at least thirteen split-inducing conditions are present in these languages. The most common are status of a subject or object as a speech act participant, verbal semantics, lexical specification, and grammatical number. I interpret the skewing toward these conditions by appealing to four generalizations which highlight those factors involved in the common, and several less common, conditions. Split-inducing conditions which do not immediately fall out from these generalizations are tentatively treated in diachronic or other language-specific terms.
A Model-Theoretic Characterization of Constant-Depth Arithmetic Circuits
Creators: name: Haak, Anselm
name: Vollmer, Heribert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Complexity (cs.CC)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We study the class $\textrm{AC}^0$ of functions computed by constant-depth polynomial-size arithmetic circuits of unbounded fan-in addition and multiplication gates. No model-theoretic characterization for arithmetic circuit classes is known so far. Inspired by Immerman's characterization of the Boolean class $\textrm{AC}^0$, we remedy this situation and develop such a characterization of $\textrm{AC}^0$. Our characterization can be interpreted as follows: Functions in $\textrm{AC}^0$ are exactly those functions counting winning strategies in first-order model checking games. A consequence of our results is a new model-theoretic characterization of $\textrm{TC}^0$, the class of languages accepted by constant-depth polynomial-size majority circuits.