cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effect of soil quality and planting material on the root architecture and the root anchorage of young hybrid poplar plantations on waste rock slopes
Creators: name: Babi, Khadija
name: Guittonny, Marie
name: Bussière, Bruno
name: Larocque, Guy
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: On mine waste rock slopes, trees with inadequate root development could be prone to uprooting. The anchorage of trees is mainly determined by the architecture of the root systems that drive their mechanical interactions with the soil. The objective of this study was to evaluate the effects of soil quality and of different planting materials on the architecture and resistance to shear stress of root systems of hybrid poplars four years after they were initially planted. The study was conducted in an open-pit-gold mine. A hybrid poplar plantation was established in 2013 on 33% soil-covered waste rock slopes, using a randomised complete block design, that is, 3 replicated blocks × 3 planting materials × 2 soil qualities. The stability of the hybrid poplars (resistance to uprooting) was evaluated using lateral traction tests. Complete excavations were performed to characterise their coarse root (>4 mm) architecture. Results showed no significant differences between treatments in terms of the maximum resistance force to uprooting, which varied between 7142 and 8989 N. After four growing seasons, no significant effects due to soil quality or planting material were observed in the number of lateral roots, mean root diameter, root biomass, aboveground biomass, and shoot/root ratio.
Stability of the Regular Hayward Thin-Shell Wormholes
Creators: name: Sharif, M.
name: Mumtaz, Saadia
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The aim of this paper is to construct regular Hayward thin-shell wormholes and analyze their stability. We adopt Israel formalism to calculate surface stresses of the shell and check the null and weak energy conditions for the constructed wormholes. It is found that the stress-energy tensor components violate the null and weak energy conditions leading to the presence of exotic matter at the throat. We analyze the attractive and repulsive characteristics of wormholes corresponding to $a^r>0$ and $a^r<0$, respectively. We also explore stability conditions for the existence of traversable thin-shell wormholes with arbitrarily small amount of fluids describing cosmic expansion. We find that the spacetime has non-physical regions which give rise to event horizon for $0
description: 23 pages, 8 figures
Barbarians' Gate: Inside the Business of Mixed Martial Arts
Creators: name: Westney, Andrew Royce
Publisher: name: University of North Carolina at Chapel Hill
Year: 2012

description: The business of mixed martial arts has grown over the last decade as the Ultimate Fighting Championship (UFC), the foremost MMA organization, has flourished. This master's thesis examines four aspects of the sport's boom. The first article explores the effort by the UFC and its allies to overturn New York's 1997 MMA ban and conflicts between the UFC and local MMA supporters. The second article describes the business of MMA in North Carolina since the 2008 legalization of the sport, including the experiences of Walter Smith, an amateur heavyweight fighter. The third article evaluates the UFC's ambition to outstrip the NFL by comparing the popularity of each with Las Vegas sports bettors during the 2012 Super Bowl weekend, when UFC 143, one of the promotion's pay-per-view events, took place in the city. The fourth article, a sidebar to the third, compares boxing and MMA in sports betting terms.
An algorithm for computing the reduction of $2$-dimensional crystalline representations of $\text{Gal}(\overline{\mathbf{Q}}_p/\mathbf{Q}_p)$
Creators: name: Rozensztajn, Sandra
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We describe an algorithm to compute the reduction modulo $p$ of a crystalline Galois representation of dimension $2$ of $\text{Gal}(\overline{\mathbf{Q}}_p/\mathbf{Q}_p)$ with distinct Hodge-Tate weights via the semi-simple modulo $p$ Langlands correspondence. We give some examples computed with an implementation of this algorithm in SAGE.
description: Refereed version; to appear in International Journal of Number Theory
In Vivo Assessment of Osseous Wound Healing Using Bone Putty in the Surgical Management of Tooth Extraction
Creators: name: Kumarswamy, Akshay Aswatha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Purpose: The objective of this pilot study was to evaluate the healing responses of a anesthetic bone putty in tooth extraction sockets of a canine model. Materials and Methods: In five beagle dogs the right mandibular premolars were extracted. The extraction sockets were grafted with one of the four treatment arms: 1) bone putty alone, 2) bone putty mixed with xenograft particulate bone (3:1), 3) xenograft sandwiched between bone putty and 4) xenograft covered with a collagen sponge. After 6 weeks, the healing extraction sockets were evaluated by microCT and histological analysis. Results: All sockets healed without complications. By microCT analysis, sockets grafted demonstrated comparable radiographic evidence of bone healing compared to control sockets. Histologically, a minimal inflammatory infiltrate was present in all the sockets. Conclusions: Our pre-clinical results indicate that this bone putty is a safe, biocompatible device that may be useful in the post-operative management of tooth extractions.
MPEC 2023-Q48 : 2023 QF1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 QF1

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.
Shaping in Practice: Training Wheels to Learn Fast Hopping Directly in Hardware
Creators: name: Heim, Steve
name: Ruppert, Felix
name: Sarvestani, Alborz A.
name: Spröwitz, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Learning instead of designing robot controllers can greatly reduce engineering effort required, while also emphasizing robustness. Despite considerable progress in simulation, applying learning directly in hardware is still challenging, in part due to the necessity to explore potentially unstable parameters. We explore the concept of shaping the reward landscape with training wheels: temporary modifications of the physical hardware that facilitate learning. We demonstrate the concept with a robot leg mounted on a boom learning to hop fast. This proof of concept embodies typical challenges such as instability and contact, while being simple enough to empirically map out and visualize the reward landscape. Based on our results we propose three criteria for designing effective training wheels for learning in robotics. A video synopsis can be found at https://youtu.be/6iH5E3LrYh8.
description: Accepted to the IEEE International Conference on Robotics and Automation (ICRA) 2018, 6 pages, 6 figures
Evaluating the Couples Health CoOp in South African Couples: Understanding Sexual Concurrency, Long-Term Skill Retention, and Relationship Dynamics
Creators: name: Belus, Jennifer
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Incident rates of HIV infection continue to be unacceptably high in South Africa, where HIV is primarily transmitted through sexual contact. Couple-based HIV prevention programs, which focus on the dyad as the point of intervention, are shown to be efficacious in improving safe sex behaviors. However, not all individuals show improvement through this type of intervention, suggesting an opportunity to improve these programs. Therefore, the current study has three aims tied to improving couple-based HIV prevention programs in South Africa: (a) use individual and relationship predictors to better understand why individuals engage in outside sexual relationships, known as sexual concurrency; (b) examine the long-term effects of a particular couple-based HIV prevention program, the Couples Health CoOp; and (c) develop and initially evaluate a theory of adaptive couple functioning for Black South African couples, which can improve the relationship focus of couple-based HIV prevention programs. A quantitative investigation using a structural equation modeling framework was carried out for Study 1 using data collected from 286 South African heterosexual couples. Results show that alcohol use for both sexes, relationship satisfaction among men, and mistrust among women were predictive of different types of sexual concurrency. Study 2 used qualitative methods, specifically focus group discussions with men and women, to investigate the second and third aims. Results of Aim 2 indicated that the most salient information learned by men and women related to communication and problem-solving, safe sexual behaviors, and negative effects of alcohol. Long-term changes were reported in the areas of communication and healthier sexual behavior, but alcohol use for many participants was still an area of struggle. Finally, Aim 3 of this investigation revealed four major components associated with adaptive relationship functioning: active relationship building behaviors, emotional support/display, communication, and problem-solving. Overall, this study provides evidence that relationship factors are central to the lives of South African men and women, and it identifies a number of ways in which couple-based HIV prevention programs might be improved through enhancing various relationship factors.
Reference Dependence on Powers-of-Ten Casualties
Creators: name: , Sadish
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Public Health
subject: Medicine and Health Sciences
subject: Behavioral Economics
subject: Economics
subject: Social and Behavioral Sciences
subject: COVID-19
subject: health behavior
subject: reference dependence

description: This registration is replaced by doi 10.17605/OSF.IO/JVR7M
Der Katalog der ‚Kleiderhändler‘ in Plautus‘ Aulularia (505-535) – einige Überlegungen zur Textkritik
Creators: name: Radicke, Jan
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2023

description: Göttinger Forum für Altertumswissenschaft, Bd. 25 Nr. 1 (2022): Göttinger Forum für Altertumswissenschaft
Efficient Modal Decomposition of Vortex Beams via Holographically Reconstructed Phase
Creators: name: Knudsen, Jasmine M.
name: Alperin, Samuel N.
name: Voitiv, Andrew A.
name: Holtzmann, William G.
name: Gopinath, Juliet T.
name: Siemens, Mark E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We use phase-shifting digital holography to measure the amplitude and phase of twisted light. In our experiment, a spatial light modulator generates the studied vortex beams in addition to a co-propagating reference beam with a controllable relative phase. We show complex field measurements for single and superposition Laguerre Gaussian (LG) modes, demonstrate full modal decompositions into LG and orbital angular momentum (OAM) power spectral bases, provide error analysis and demonstrate high insensitivity to detector misalignment to show the robustness of the technique. This enables rapid determination of OAM spectra with low uncertainty, allowing us to report the first vortex beams with 99.9% purity.
War, peace, and transportation: using computational modeling to explore the effect of transportation technology on war
Creators: name: Pennock, Andrew Stephen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Studies investigating the effect of interdependence on conflict have produced contradictory empirical findings. Studies using datasets from the mid-19th century onward have found that increasing levels of trade between nations increase the likelihood of peace. Studies incorporating a longer time-frame have suggested the opposite. I theorize that the effect of interdependence on war is a result of the level of interconnectedness in a system of trading countries. I test the theory using a computational model which places countries in a randomly configured system. As time passes, transportation technology increases and the effect of various levels of interdependence on war is observed. The patterns of warfare which emerge from the computational model suggest that transportation technology had a variable effect in determining if countries go to war.
Tarification des services AnaEE France
Creators: name: Bousquet, Marion
name: Clavreul, Alyssa
name: Valay, Jean-Gabriel
Publisher: name: Zenodo
Year: 2023
Subjects: tarification
service
coût complet
audit

description: Guide méthodologique construit dans le cadre d’une réflexion collective sur les services AnaEE France n’engageant pas les organismes tutelles de l’infrastructure. Ce document propose une méthodologie et des principes de tarification pour les services de l'infrastructure nationale AnaEE-France. Nous rappelons que ces services couvrent l’accès aux plateformes expérimentales, la production d’analyses pour caractériser les écosystèmes, la mise à disposition d’instruments et d’échantillons, et l’accès aux plateformes de modélisation.
Before Name-calling: Dynamics and Triggers of Ad Hominem Fallacies in Web Argumentation
Creators: name: Habernal, Ivan
name: Wachsmuth, Henning
name: Gurevych, Iryna
name: Stein, Benno
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Arguing without committing a fallacy is one of the main requirements of an ideal debate. But even when debating rules are strictly enforced and fallacious arguments punished, arguers often lapse into attacking the opponent by an ad hominem argument. As existing research lacks solid empirical investigation of the typology of ad hominem arguments as well as their potential causes, this paper fills this gap by (1) performing several large-scale annotation studies, (2) experimenting with various neural architectures and validating our working hypotheses, such as controversy or reasonableness, and (3) providing linguistic insights into triggers of ad hominem using explainable neural network architectures.
description: Accepted as NAACL 2018 Long Paper; see details on the front page
Measurement error of energy intake during pregnancy and its influence on the association between carbohydrate quality and fetal growth
Creators: name: Nowicki, Eric Michael
Publisher: name: University of North Carolina at Chapel Hill
Year: 2010

description: Population studies rely on self-reported dietary intake, which is subject to considerable measurement error. A growing body of literature has shown that subjects tend to underreport energy (food) intake, and that underreporting occurs more frequently in certain subgroups, such as women and overweight persons. Further, recent evidence has demonstrated that systematic reporting error in energy intake can seriously distort nutrient risk estimates. Maternal nutrition plays an important role for both the mother and fetus; however results on associations between diet and pregnancy outcomes thus far have been modest or non-existent. One reason may be systematic reporting bias in nutritional data, although very little is known about this error in pregnant populations. Adequate fetal growth is an important predictor of newborn complications, and also contributes to a wide array of health conditions in adolescence and adulthood. Maternal glucose is the main energy substrate for intrauterine growth. The glycemic index (GI) and glycemic load (GL) of dietary carbohydrate, has been shown to alter postprandial glucose and insulin concentrations among healthy pregnant women, and thus may alter glucose substrate levels available for the fetus. Despite this strong biological plausibility, research on the carbohydrate quality of maternal diet and fetal growth remains limited. This dissertation includes two analyses of data from participants in the third phase of the Pregnancy, Infection and Nutrition cohort study (PIN3). The first analysis indicates that measurement error in energy intake is prevalent during pregnancy with 32.8% and 12.9% of subjects reporting intakes that were implausibly low and high, respectively. This error also varied by several maternal characteristics including pregravid body size, which is an important predictor of many pregnancy outcomes. Therefore, determining the nature of measurement error in energy intake may help to improve dietary assessment methodology in reproductive studies and account for bias in the calculation of effect estimates. In the second analysis, no association was observed between carbohydrate quality and fetal growth among generally healthy pregnancies; a null finding that remained after exclusion of participants with implausible energy intakes. Strengths and limitations of this study and the current literature, as well as and recommendations for future research are noted.
Sentence Entailment in Compositional Distributional Semantics
Creators: name: Balkir, Esma
name: Kartsaklis, Dimitri
name: Sadrzadeh, Mehrnoosh
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Category Theory (math.CT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.2.7
subject: 03B65

description: Distributional semantic models provide vector representations for words by gathering co-occurrence frequencies from corpora of text. Compositional distributional models extend these from words to phrases and sentences. In categorical compositional distributional semantics, phrase and sentence representations are functions of their grammatical structure and representations of the words therein. In this setting, grammatical structures are formalised by morphisms of a compact closed category and meanings of words are formalised by objects of the same category. These can be instantiated in the form of vectors or density matrices. This paper concerns the applications of this model to phrase and sentence level entailment. We argue that entropy-based distances of vectors and density matrices provide a good candidate to measure word-level entailment, show the advantage of density matrices over vectors for word level entailments, and prove that these distances extend compositionally from words to phrases and sentences. We exemplify our theoretical constructions on real data and a toy entailment dataset and provide preliminary experimental evidence.
description: 8 pages, 1 figure, 2 tables, short version presented in the International Symposium on Artificial Intelligence and Mathematics (ISAIM), 2016
Testing Einstein's Weak Equivalence Principle With Gravitational Waves
Creators: name: Wu, Xue-Feng
name: Gao, He
name: Wei, Jun-Jie
name: Fan, Xi-Long
name: Mészáros, Peter
name: Zhang, Bing
name: Dai, Zi-Gao
name: Zhang, Shuang-Nan
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A conservative constraint on the Einstein Weak Equivalence Principle (WEP) can be obtained under the assumption that the observed time delay between correlated particles from astronomical sources is dominated by the gravitational fields through which they move. Current limits on the WEP are mainly based on the observed time delays of photons with different energies. It is highly desirable to develop more accurate tests that include the gravitational wave (GW) sector. The detection by the advanced LIGO/VIRGO systems of gravitational waves will provide attractive candidates for constraining the WEP, extending the tests to gravitational interactions, with potentially higher accuracy. Considering the capabilities of the advanced LIGO/VIRGO network and the source direction uncertainty, we show that the joint detection of GWs and electromagnetic signals could probe the WEP to an accuracy down to $10^{-10}$, which is one order of magnitude tighter than previous limits, and seven orders of magnitude tighter than the multi-messenger (photons and neutrinos) results by supernova 1987A.
description: Accepted for publication in PRD
title: Współczesne budownictwo sakralne w małych miastach – na przykładzie archidiecezji częstochowskiej
Creators: name: Repelewicz, Aleksandra
Publisher: name: Publishing House of Poznan University of Technology
Year: 2022

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura wnętrz, 8, 145-158
The Enzymes Responsible for the Addition and Maintenance of the 3' Oligouridylation of histone mRNA
Creators: name: Lackey, Patrick
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Histone mRNAs end in a highly conserved 3’ stemloop, making them the only known metazoan mRNAs that do not end in a poly(A) tail. They are also tightly cell-cyle regulated, with expression increasing 30-fold at the beginning of S-phase followed by a quick reduction in half-life as S-phase ends. Because of its unique 3’ ends, histone mRNAs require a different mechanism to initiate degradation than bulk mRNA. Previous work has revealed that initiation of histone mRNA degradation is mediated by an oligouridylation at the 3’ end of the message. Further work showed these oligouridylations vary widely in base position, length, and when they are added to the message. In this thesis, I use a high-throughput sequencing approach to show that the oligouridylation of the 3’ UTR of histone mRNA are added by the enzyme TUT7 and that the length and function of the oligouridylations is controlled by the human 3’ exonuclease, 3’hExo; during S-phase the U tails are 1-2 nts and function to protect the 3’ end of the message from degradation. As S-phase ends, longer U-tails are added and 3’hExo initiates the degradation of the message. From the next-generation sequencing data, I also present evidence that oligouridylation of the open reading frame is added differently than the oligouridylation of the 3’ end, likely by a different enzyme.
Extending $p$-divisible groups and Barsotti-Tate deformation ring in the relative case
Creators: name: Moon, Yong Suk
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $k$ be a perfect field of characteristic $p > 2$, and let $K$ be a finite totally ramified extension of $W(k)[\frac{1}{p}]$ of ramification degree $e$. We consider an unramified base ring $R_0$ over $W(k)$ satisfying certain conditions, and let $R = R_0\otimes_{W(k)}\mathcal{O}_K$. Examples of such $R$ include $R = \mathcal{O}_K[\![s_1, \ldots, s_d]\!]$ and $R = \mathcal{O}_K\langle t_1^{\pm 1}, \ldots, t_d^{\pm 1}\rangle$. We show that the generalization of Raynaud's theorem on extending $p$-divisible groups holds over the base ring $R$ when $e < p-1$, whereas it does not hold when $R = \mathcal{O}_K[\![s]\!]$ with $e \geq p$. As an application, we prove that if $R$ has Krull dimension $2$ and $e < p-1$, then the locus of Barsotti-Tate representations of $\mathrm{Gal}(\overline{R}[\frac{1}{p}]/R[\frac{1}{p}])$ cuts out a closed subscheme of the universal deformation scheme. If $R = \mathcal{O}_K[\![s]\!]$ with $e \geq p$, we prove that such a locus is not $p$-adically closed.
description: 18 pages; minor corrections and more details added
Workshop "Der Stamp in der Beratung" an Universitäten
Creators: name: Künstler-Sment, Julia
name: Pegelow, Lisa
name: Meyermann, Alexia
name: Netscher, Sebastian
Publisher: name: Zenodo
Year: 2023
Subjects: research data managment
data management plans
consulting at universities

description: The Stamp in Consulting project, sponsored by KonsortSWD, conducted two workshops in September 2023 to explore and enhance the usability of the Stamp tool within diverse institutional settings. The first workshop, held on 05.09.2023, focused on investigating the usability of Stamp for Research Data Management consulting in universities. The workshop revealed a significant heterogeneity in consulting practices and guidelines for data management across academic institutions. Differences were particularly noticeable between project-specific or research cluster approaches and more general consulting services. Furthermore, the implementation of data policies, especially those concerning open access, varied widely among institutions, a divergence often attributed to disparities between internally and externally funded projects. In this context, the Stamp tool emerged as a pivotal solution, providing structure and an overview while aiding in consultation planning. Its adaptability to address specific challenges during consultations was noteworthy. Moreover, the tool demonstrated potential for further enhancement by incorporating institutional guidelines. The findings from this workshop underscore the critical role of the Stamp tool in navigating the complexities of Research Data Management consulting, shedding light on the diverse landscape of academic consulting practices and highlighting avenues for its continual improvement.
Methodologies of relationship: risking self-(re)definition through communities and dialogues of difference
Creators: name: Epes, Heather Elisabeth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: This dissertation discusses methodologies of teaching stressing relationships between class participants through the development of a "community of difference" that uses a "dialogue of difference." In these classrooms, community creates a constructive space for incorporating the lived experiences and multiple identities of individuals into learning processes, favoring the development of critical thought, individual voice, and awareness of difference. My pedagogy combines writing center and composition studies models for writing and discourse communities with the work of Black feminist theorists like Patricia Collins and bell hooks. These women conceptualize community and identity theories that support the idea of self-redefinition within community that may lead to greater understanding of difference. I also draw on Mikhail Bakhtin's concept of the "utterance" to call attention to the ways language may represent individual experience and knowledge. An instructor can employ language use and relationship in a classroom community as a dialogue of difference that critically considers sociohistorical and immediate forces that affect individual experience and identity. In addition to developing self-definition, this kind of environment can also be used to stress continual self-redefinition within community and a responsibility towards recognizing difference in community. The autobiographical first chapter, "Biography of a Pedagogy," positions the development of my pedagogical and methodological convictions at the cross-section of my own sociohistorical circumstances and experience. I present my subsequent theoretical work with a number of composition theorists and Black feminist theorists, and Mikhail Bakhtin in the second chapter, and the last chapter addresses the practice of relationship and research on the subject.
The on-shell effective field theory: a systematic tool to compute power corrections to the hard thermal loops
Creators: name: Manuel, Cristina
name: Soto, Joan
name: Stetina, Stephan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that effective field theory techniques can be efficiently used to compute power corrections to the hard thermal loops (HTL) in a high temperature T expansion. To this aim, we use the recently proposed on-shell effective field theory (OSEFT), which describes the quantum fluctuations around on-shell degrees of freedom. We provide the OSEFT Lagrangian up to third order in the energy expansion for QED, and use it for the computation of power corrections to the retarded photon polarization tensor for soft external momenta. Here soft denotes a scale of order $eT$, where $e$ is the gauge coupling constant. We develop the necessary techniques to perform these computations, and study the contributions to the polarization tensor proportional to $e^2 T^2$, $e^2 T$ and $e^2 T^0$. The first one describes the HTL contribution, the second one vanishes, while the third one provides corrections of order $e^2$ to the soft photon propagation. We check that the results agree with the direct calculation from QED, up to local pieces, as expected in an effective field theory.
description: 34 pages; 2 figures. v4; numerical errors in transverse functions corrected
Charged rotating black holes in higher dimensions
Creators: name: Andrade, Tomas
name: Emparan, Roberto
name: Licht, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use a recent implementation of the large $D$ expansion in order to construct the higher-dimensional Kerr-Newman black hole and also new charged rotating black bar solutions of the Einstein-Maxwell theory, all with rotation along a single plane. We describe the space of solutions, obtain their quasinormal modes, and study the appearance of instabilities as the horizons spread along the plane of rotation. Generically, the presence of charge makes the solutions less stable. Instabilities can appear even when the angular momentum of the black hole is small, as long as the charge is sufficiently large. We expect that, although our study is performed in the limit $D\to\infty$, the results provide a good approximation for charged rotating black holes at finite $D\geq 6$.
description: 21 pages, 1 figure
Model-Free Approaches to Discern Non-Stationary Microstructure Noise and Time-Varying Liquidity in High-Frequency Data
Creators: name: Chen, Richard Y.
name: Mykland, Per A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Economics and business
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we provide non-parametric statistical tools to test stationarity of microstructure noise in general hidden Ito semimartingales, and discuss how to measure liquidity risk using high frequency financial data. In particular, we investigate the impact of non-stationary microstructure noise on some volatility estimators, and design three complementary tests by exploiting edge effects, information aggregation of local estimates and high-frequency asymptotic approximation. The asymptotic distributions of these tests are available under both stationary and non-stationary assumptions, thereby enable us to conservatively control type-I errors and meanwhile ensure the proposed tests enjoy the asymptotically optimal statistical power. Besides it also enables us to empirically measure aggregate liquidity risks by these test statistics. As byproducts, functional dependence and endogenous microstructure noise are briefly discussed. Simulation with a realistic configuration corroborates our theoretical results, and our empirical study indicates the prevalence of non-stationary microstructure noise in New York Stock Exchange.
Hamstring neuromechanical properties and biomechanics in an ACL injured population
Creators: name: Bell, David Robert
Publisher: name: University of North Carolina at Chapel Hill
Year: 2010

description: In the general population, females are 1.5-4.6 times more likely to tear their ACL than males. Hormonal fluctuations during the menstrual cycle partially explain this elevated injury risk. Most of the previous research has focused on the influence of hormones on ligament in healthy females with no history of ACL injury. Information is limited regarding the influence of hormones on muscle and ligament in females with a history of ACL injury. The purpose of this investigation was to determine if biomechanical and neuromechanical factors change across the menstrual cycle in females with a history of unilateral ACL injury. Twenty-four participants were recruited to participate with twenty subjects (height=168.6±5.3cm, mass=66.2±9.1kg) completing the testing protocol. Participants were tested (1) 3-5 days after the onset of menses and (2) within 3 days following a positive ovulation test. Separate paired t-tests were performed with menstrual cycle phase as the within-subject factor (menses vs. ovulation) for variables of interest. Knee laxity (P=0.03), hamstring musculotendinous stiffness (P=0.03), estradiol-β-17 (P=0.009), and progesterone (P=0.003) increased at ovulation. Hamstring strength, rate of force production, and free testosterone did not change across the menstrual cycle (P>0.05). During the jump landing at initial contact, the following changes occurred at ovulation: the tibia became externally rotated (P=0.01) and external knee valgus moment decreased (P=0.006). During the absorption phase the following occurred at ovulation: the tibia became externally rotated (P=0.05), the femur became internally rotated (P=0.05), knee varus moment decreased (P=0.03), knee valgus moment decreased (P=0.003), knee external rotation moment decreased (P=0.007), and peak vertical ground reaction force decreased (P=0.04). Females with a history of unilateral non-contact ACL injury demonstrated altered biomechanical and neuromechanical profiles across the menstrual cycle. Knee joint laxity, hamstring musculotendinous stiffness, and jump landing biomechanics appear highly sensitive to changes in hormones across the menstrual cycle in females with previous history of unilateral non-contact ACL injury. The influence of the observed changes on non-contact ACL injury risk requires further study.
Local communities obstruct global consensus: Naming game on multi-local-world networks
Creators: name: Lou, Yang
name: Chen, Guanrong
name: Fan, Zhengping
name: Xiang, Luna
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: Computation and Language (cs.CL)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Community structure is essential for social communications, where individuals belonging to the same community are much more actively interacting and communicating with each other than those in different communities within the human society. Naming game, on the other hand, is a social communication model that simulates the process of learning a name of an object within a community of humans, where the individuals can generally reach global consensus asymptotically through iterative pair-wise conversations. The underlying network indicates the relationships among the individuals. In this paper, three typical topologies, namely random-graph, small-world and scale-free networks, are employed, which are embedded with the multi-local-world community structure, to study the naming game. Simulations show that 1) the convergence process to global consensus is getting slower as the community structure becomes more prominent, and eventually might fail; 2) if the inter-community connections are sufficiently dense, neither the number nor the size of the communities affects the convergence process; and 3) for different topologies with the same average node-degree, local clustering of individuals obstruct or prohibit global consensus to take place. The results reveal the role of local communities in a global naming game in social network studies.
description: 31 pages, 17 figures
Interventions that reduce disparities in management along the cancer care continuum: a scoping review protocol
Creators: name: George, Milan
name: Moreira, Matheus
name: Lama Nazer
name: Hicklen, Rachel
name: Batalini, Felipe
name: Kann, Benjamin
name: Lin, John
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: This registration is for a scoping review protocol that seeks to characterize the extent and type of evidence on interventions in management along the cancer care continuum in effort to reduce disparities.
MPEC 2023-Q49 : 2023 QG1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 QG1

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.
Imminent earthquake forecasting on the basis of Japan INTERMAGNET stations, NEIC, NOAA and Tide code data analysis
Creators: name: Mavrodiev, S. Cht.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: This research presents one possible way for imminent prediction of earthquake magnitude, depth and epicenter coordinates by solving the inverse problem using a data acquisition network system for monitoring, archiving and complex analysis of geophysical variables precursors. Among many possible precursors the most reliable are the geoelectromagnetic field, the boreholes water level, the radon surface concentration, the local heat flow, the ionosphere variables, the low frequency atmosphere and Earth core waves. In this study only geomagnetic data are used. Within the framework of geomagnetic quake approach it is possible to perform an imminent regional seismic activity forecasting on the basis of simple analysis of geomagnetic data which use a new variable Schtm with dimension surface density of energy. Such analysis of Memambetsu, Kakioka, Kanoya (Japan, INTERMAGNET) stations and NEIC earthquakes data, the hypothesis that the predicted earthquake is this with bigest value of the variable Schtm permit to formulate an inverse problem (overdetermined algebraic system) for precursors signals like a functions of earthquake magnitude, depth and distance from a monitoring point. Thus, in the case of data acquisition network system existence, which includes monitoring of more than one reliable precursor variables in at least four points distributed within the area with a radius of up to 700 km, there will be enough algebraic equations for calculation of impending earthquake magnitude, depth and distance, solving the overdetermined algebraic system.
description: 21 pages, 14 figures, 2 tables
A generalization of vortex lines
Creators: name: Fecko, Marian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Helmholtz theorem states that, in ideal fluid, vortex lines move with the fluid. Another Helmholtz theorem adds that strength of a vortex tube is constant along the tube. The lines may be regarded as integral surfaces of a 1-dimensional integrable distribution (given by the vorticity 2-form). In general setting of theory of integral invariants, due to Poincare and Cartan, one can find $d$-dimensional integrable distribution whose integral surfaces show both properties of vortex lines: they move with (abstract) fluid and, for appropriate generalization of vortex tube, strength of the latter is constant along the tube.
description: 8 pages, 3 figures; version to be published in Journal of Geometry and Physics
QUANTIFYING COASTAL STREAM METABOLISM ACROSS A GRADIENT OF HUMAN WATERSHED DEVELOPMENT
Creators: name: White, Caitlin
Publisher: name: University of North Carolina at Chapel Hill Graduate School
Year: 2014
Subjects: Environmental sciences
Limnology

description: Coastal headwater streams are important conduits and processors of terrestrially derived materials, however they remain understudied compared to upland streams. In particular, little is known about the impact of watershed development on coastal stream metabolism although there are likely important implications for management decisions. Whole-stream metabolism was measured seasonally between July 2013 and April 2014 using single-and two-station methods in four streams of the New River Estuary, North Carolina, which represented a gradient in watershed development. Streams were heterotrophic year-round and net daily metabolism ranged from -58.2 to -1.9 g O2 m-2 d-1. However, possible effects of watershed development including increased nitrogen concentrations, decreased dissolved organic carbon and chromophoric dissolved organic matter, and increased particulate organic carbon were correlated with decreased heterotrophy in impacted streams. These results provide a conceptual model of coastal streams in human dominated watersheds and will offer context for management at the scale of watershed decision-making.
Heisenberg Operator Approach for Spin Squeezing Dynamics
Creators: name: Bhattacherjee, Aranya B.
name: Sharma, Deepti
name: Pelster, Axel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We reconsider the one-axis twisting Hamiltonian, which is commonly used for generating spin squeezing, and treat its dynamics within the Heisenberg operator approach. To this end we solve the underlying Heisenberg equations of motion perturbatively and evaluate the expectation values of the resulting time-dependent Heisenberg operators in order to determine approximately the dynamics of spin squeezing. Comparing our results with those originating from exact numerics reveals that they are more accurate than the commonly used frozen spin approximation.
description: 16 pages, 3 figures
Primary damage production in the presence of extended defects and growth of vacancy-type dislocation loops in hcp zirconium
Creators: name: Dai, Cong
name: Long, Fei
name: Saidi, Peyman
name: Beland, Laurent Karim
name: Yao, Zhongwen
name: Daymond, Mark R.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Production rates in long-term predictive radiation damage accumulation models are generally considered independent of the material's microstructure for reactor components. In this study, the effect of pre-existing microstructural elements on primary damage production in alpha-Zr -- and vice-versa -- is assessed by molecular dynamics (MD) simulations. a-type dislocation loops, c-component dislocation loops and a tilt grain boundary (GB) were considered. Primary damage production is reduced in the presence of all these microstructural elements, and clustering behavior is dependent on the microstructure. Collision cascades do not cause a-type loop growth or shrinkage, but they cause c-component loop shrinkage. Cascades in the presence of the GBs produce more vacancies than interstitials. This result, as well as other theoretical, MD and experimental evidence, confirm that vacancy loops will grow in the vacancy supersaturated environment near GBs. Distinct temperature-dependent growth regimes are identified. Also, MD reveals cascade-induced events where a-type vacancy loops are absorbed by GBs. Fe segregation at the loops inhibits this cascade-induced absorption.
Frameworks and methodologies for search-based approximate logic synthesis
Creators: name: Witschen, Linus
Publisher: name: Universität Paderborn
Year: 2022

description: Approximate computing hat sich als ein Weg herauskristallisiert, die Verarbeitungsleistung von Rechensystemen weiter zu steigern, indem die Qualität einer Anwendung gegen eine Zielmetrik eingetauscht wird. Diese Dissertation betrachtet approximate computing auf der Hardwareebene, auf der es approximierte Schaltungen generiert und als approximate logic synthesis (ALS) bezeichnet wird. Konkret leistet die Arbeit fünf Beiträge und betrachtet automatisierte, suchbasierte ALS Prozesse, die in vier Schritten modelliert werden: suchen, approximieren, verifizieren und abschätzen. Zunächst stellt die Dissertation das Framework CIRCA vor, das den ALS Prozess allgemeingültig und konfigurierbar implementiert und so eine Umgebung für den Vergleich von ALS Methoden bereitstellt. Anschließend wird das Suchverfahren jump search diskutiert, das approximierte Schaltungen schnell generiert, indem es Synthesen und Verifikationen mittels Domänenwissen minimiert. Des Weiteren wird die Approximationstechnik MUSCAT vorgestellt, die auf formaler Verifikation basiert und Schaltungen hinsichtlich ihrer Qualität korrekt konstruiert. Ferner betrachtet die Arbeit den Verifikationsschritt und stellt das Konzept von proof-carrying approximate circuits vor, das die Felder approximate computing und proof-carrying hardware vereint. Abschließend behandelt die Arbeit ein auf formaler Verifikation basierendes Verfahren, das vorab den Suchraum von approximierten Schaltungen für den ALS Prozess charakterisiert.
description: Approximate computing has emerged as one way to meet the challenge of improving a computing systems performance by trading off an applications quality against a target metric. This dissertation focuses on approximate computing at hardware level, where it is referred to as approximate logic synthesis (ALS) and has the goal of generating approximate circuits; specifically, this dissertation makes five contributions and comprehensively considers automated search-based ALS processes that are modeled with four main steps: search, approximate, verify, and estimate. Firstly, this dissertation contributes the CIRCA framework that implements a general and fully configurable ALS process to provide an environment for comparing different ALS methods. Secondly, we propose the jump search methodology that minimizes syntheses and verifications by exploiting domain knowledge to rapidly generate approximate circuits. Thirdly, the technique MUSCAT contributes to the approximation step and utilizes formal verification techniques to construct approximate circuits that are valid-by-construction regarding their quality. The fourth contribution considers the verification step and is the concept of proof-carrying approximate circuits, which brings together the fields of approximate computing and proof-carrying hardware. Finally, this dissertation proposes a formal verification-based methodology that characterizes the search space of approximate circuits prior to the ALS process.