cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exact hydrodynamic solution of a double domain wall melting in the spin-1/2 XXZ model
Creators: name: Scopa, Stefano
name: Calabrese, Pasquale
name: Dubail, Jérôme
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the non-equilibrium dynamics of a one-dimensional spin-1/2 XXZ model at zero-temperature in the regime $|Δ|< 1$, initially prepared in a product state with two domain walls i.e, $|\downarrow\dots\downarrow\uparrow\dots\uparrow\downarrow\dots\downarrow\rangle$. At early times, the two domain walls evolve independently and only after a calculable time a non-trivial interplay between the two emerges and results in the occurrence of a split Fermi sea. For $Δ=0$, we derive exact asymptotic results for the magnetization and the spin current by using a semi-classical Wigner function approach, and we exactly determine the spreading of entanglement entropy exploiting the recently developed tools of quantum fluctuating hydrodynamics. In the interacting case, we analytically solve the Generalized Hydrodynamics equation providing exact expressions for the conserved quantities. We display some numerical results for the entanglement entropy also in the interacting case and we propose a conjecture for its asymptotic value.
description: 27 pages, 10 figures; v3: corrected authors' information; fixed typos
Overadjustment Bias and Unnecessary Adjustment in Epidemiologic Studies
Creators: name: Schisterman, Enrique F.
name: Cole, Stephen R.
name: Platt, Robert W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Overadjustment is defined inconsistently. This term is meant to describe control (eg, by regression adjustment, stratification, or restriction) for a variable that either increases net bias or decreases precision without affecting bias. We define overadjustment bias as control for an intermediate variable (or a descending proxy for an intermediate variable) on a causal path from exposure to outcome. We define unnecessary adjustment as control for a variable that does not affect bias of the causal relation between exposure and outcome but may affect its precision. We use causal diagrams and an empirical example (the effect of maternal smoking on neonatal mortality) to illustrate and clarify the definition of overadjustment bias, and to distinguish overadjustment bias from unnecessary adjustment. Using simulations, we quantify the amount of bias associated with overadjustment. Moreover, we show that this bias is based on a different causal structure from confounding or selection biases. Overadjustment bias is not a finite sample bias, while inefficiencies due to control for unnecessary variables are a function of sample size.
Ergodicity of the Martyna-Klein-Tuckerman Thermostat and the 2014 Snook Prize
Creators: name: Hoover, William Graham
name: Hoover, Carol Griswold
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Nosé and Hoover's 1984 work showed that although Nosé and Nosé-Hoover dynamics were both consistent with Gibbs' canonical distribution neither dynamics, when applied to the harmonic oscillator, provided Gibbs' Gaussian distribution. Further investigations indicated that two independent thermostat variables are necessary, and often sufficient, to generate Gibbs' canonical distribution for an oscillator. Three successful time-reversible and deterministic sets of two-thermostat motion equations were developed in the 1990s. We analyze one of them here. It was developed by Martyna, Klein, and Tuckerman in 1992. Its ergodicity was called into question by Patra and Bhattacharya in 2014. This question became the subject of the 2014 Snook Prize. Here we summarize the previous work on this problem and elucidate new details of the chaotic dynamics in the neighborhood of the two fixed points. We apply six separate tests for ergodicity and conclude that the MKT equations are fully compatible with all of them, in consonance with our recent work with Clint Sprott and Puneet Patra.
description: Thirteen pages and five figures, Version accepted for publication in Computational Methods in Science and Technology
Audet, Jean-Paul, Casamento e celibato no serviço pastoral da Igreja. Ed. Livraria Morais Editora. Vol. de 191 ps. 140x200. Lisboa 1967
Creators: name: Fonseca, Guilherme Frederico Malvar Da
Publisher: name: Theologica
Year: 1968

description: Theologica, v. 3 n. 1 (1968)
Ranking Feature-Block Importance in Artificial Multiblock Neural Networks
Creators: name: Jenul, Anna
name: Schrunner, Stefan
name: Huynh, Bao Ngoc
name: Helin, Runar
name: Futsæther, Cecilia Marie
name: Liland, Kristian Hovde
name: Tomic, Oliver
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: In artificial neural networks, understanding the contributions of input features on the prediction fosters model explainability and delivers relevant information about the dataset. While typical setups for feature importance ranking assess input features individually, in this study, we go one step further and rank the importance of groups of features, denoted as feature-blocks. A feature-block can contain features of a specific type or features derived from a particular source, which are presented to the neural network in separate input branches (multiblock ANNs). This work presents three methods pursuing distinct strategies to rank features in multiblock ANNs by their importance: (1) a composite strategy building on individual feature importance rankings, (2) a knock-in, and (3) a knock-out strategy. While the composite strategy builds on state-of-the-art feature importance rankings, knock-in and knock-out strategies evaluate the block as a whole via a mutual information criterion. Our experiments consist of a simulation study validating all three approaches, followed by a case study on two distinct real-world datasets to compare the strategies. We conclude that each strategy has its merits for specific application scenarios.
The convexity radius of a Riemannian manifold
Creators: name: Dibble, James
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C20

description: The ratio of convexity radius over injectivity radius may be made arbitrarily small within the class of compact Riemannian manifolds of any fixed dimension at least two. This is proved using Gulliver's method of constructing manifolds with focal points but no conjugate points. The approach is suggested by a characterization of the convexity radius that resembles a classical result of Klingenberg about the injectivity radius.
description: 6 pages; corrected false statements in the first and third sections and an error in Lemma 2.4; removed one reference and added three others; made other minor stylistic edits
The Effect of Ambient Air Pollution on Sperm Quality
Creators: name: Hansen, Craig
name: Perreault, Sally Darney
name: Strader, Lillian
name: Luben, Tom
name: Olshan, Andrew
name: Sacks, Jason
name: Jeffay, Susan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: BackgroundResearch has suggested an association with ambient air pollution and sperm quality.ObjectivesWe investigated the effect of exposure to ozone (O3) and particulate matter < 2.5 μm in aerodynamic diameter (PM2.5) on sperm quality.MethodsWe reexamined a previous cohort study of water disinfection by-products to evaluate sperm quality in 228 presumed fertile men with different air pollution profiles. Outcomes included sperm concentration, total sperm per ejaculate (count), and morphology, as well as DNA integrity and chromatin maturity. Exposures to O3 and PM2.5 were evaluated for the 90–day period before sampling. We used multivariable linear regression, which included different levels of adjustment (i.e., without and with season and temperature) to assess the relationship between exposure to air pollutants during key periods of sperm development and adverse sperm outcomes.ResultsSperm concentration and count were not associated with exposure to PM2.5, but there was evidence of an association (but not statistically significant) with O3 concentration and decreased sperm concentration and count. Additionally, a significant increase in the percentage of sperm cells with cytoplasmic drop [β = 2.64; 95% confidence interval (CI), 0.21–5.06] and abnormal head (β = 0.47; 95% CI, 0.03–0.92) was associated with PM2.5 concentration in the base model. However, these associations, along with all other sperm outcomes, were not significantly associated with either pollutant after controlling for season and temperature. Overall, although we found both protective and adverse effects, there was generally no consistent pattern of increased abnormal sperm quality with elevated exposure to O3 or PM2.5.ConclusionsExposures to O3 or PM2.5 at levels below the current National Ambient Air Quality Standards were not associated with statistically significant decrements in sperm outcomes in this cohort of fertile men. However, some results suggested effects on sperm concentration, count, and morphology.
Reptile Responses to Artificial Refuges and Fire Cues in Post-Fire Environments
Creators: name: Agnew, Liam
Publisher: name: Macquarie University
Year: 2023
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: Australia’s woodland ecosystems are subject to bushfires which cause considerable short-term disturbance to understory habitats. For ground-dwelling reptiles in fire-affected ecosystems, population persistence is contingent on surviving these post-fire environmental changes. Human factors such as climate change and introduced feral predators have increased the frequency and severity of these events, amplifying the potential for negative impacts on wildlife during and after fires. As a result, active management will be increasingly needed to conserve wildlife populations affected by fire. In this thesis, I examine how an artificial refuge design, the ‘Habitat Pod’, influences the diversity, number of detections, and behaviour of ground-dwelling reptiles in post-fire environments. In the field component of my work (Chapter 1) I detected greater numbers of small leaf-litter dwelling skinks at burnt sites with Habitat Pods added. I also found the internal refuge spaces buffered from extreme temperatures while the external spaces created a moderate hot spot. In the captive component for my work (Chapter 2) I found that lizards in simulated post-fire environments increased their emergence and foraging behaviour, suggesting they had behavioural adaptations to post-fire survival. My research shows that the Habitat Pod provides benefits to reptiles in post-fire environments, however, effects may be species-specific.
US-Bischöfe: Gesamtkirchliche Normalität in der Frauenfrage
Creators: name: Nientiedt, Klaus
Publisher: name: Herder Korrespondenz
Year: 1970

description: Herder Korrespondenz, Bd. 49 Nr. 2 (1995): Herder Korrespondenz, Band 49, Heft 2
Estimating Error in Using Ambient PM2.5 Concentrations as Proxies for Personal Exposures: A Review
Creators: name: Avery, Christy L.
name: Poole, Charles
name: Mills, Katherine T.
name: Williams, Ronald
name: Whitsel, Eric A.
name: McGraw, Kathleen A.
name: Smith, Richard L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Several methods have been used to account for measurement error inherent in using ambient concentration of particulate matter < 2.5 μm/m3 (PM2.5) as a proxy for personal exposure. Such methods usually rely on the estimated correlation between ambient and personal PM2.5 concentrations (r). These studies have not been systematically and quantitatively assessed for publication bias or heterogeneity.
An Optimized Dynamic Mode Decomposition Model Robust to Multiplicative Noise
Creators: name: Lee, Minwoo
name: Park, Jongho
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 37M10, 49M37, 49R05, 65P99

description: Dynamic mode decomposition (DMD) is an efficient tool for decomposing spatio-temporal data into a set of low-dimensional modes, yielding the oscillation frequencies and the growth rates of physically significant modes. In this paper, we propose a novel DMD model that can be used for dynamical systems affected by multiplicative noise. We first derive a maximum a posteriori (MAP) estimator for the data-based model decomposition of a linear dynamical system corrupted by certain multiplicative noise. Applying penalty relaxation to the MAP estimator, we obtain the proposed DMD model whose epigraphical limits are the MAP estimator and the conventional optimized DMD model. We also propose an efficient alternating gradient descent method for solving the proposed DMD model, and analyze its convergence behavior. The proposed model is demonstrated on both the synthetic data and the numerically generated one-dimensional combustor data, and is shown to have superior reconstruction properties compared to state-of-the-art DMD models. Considering that multiplicative noise is ubiquitous in numerous dynamical systems, the proposed DMD model opens up new possibilities for accurate data-based modal decomposition.
description: 35 pages, 10 figures
Comblin, J., Teologia da acção. Ed. Herder. (Distribuidor em Portugal: Casa Sampedro, Lisboa). Vol. de 129 ps. 120x190. S. Paulo 1967
Creators: name: Pinto, José Barbosa
Publisher: name: Theologica
Year: 1968

description: Theologica, v. 3 n. 1 (1968)
Fingerprint Matching using the Onion Peeling Approach and Turning Function
Creators: name: Padkan, Nazanin
name: Bigham, B. Sadeghi
name: Faraji, Mohammad Reza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences
subject: F.0; A.0
subject: 68-XX

description: Fingerprint, as one of the most popular and robust biometric traits, can be used in automatic identification and verification systems to identify individuals. Fingerprint matching is a vital and challenging issue in fingerprint recognition systems. Most fingerprint matching algorithms are minutiae-based. The minutiae in fingerprints can be determined by their discontinuity. Ridge ending and ridge bifurcation are two frequently used minutiae in most fingerprint-based matching algorithms. This paper presents a new minutiae-based fingerprint matching using the onion peeling approach. In the proposed method, fingerprints are aligned to find the matched minutiae points. Then, the nested convex polygons of matched minutiae points are constructed and the comparison between peer-to-peer polygons is performed by the turning function distance. Simplicity, accuracy, and low time complexity of the Onion peeling approach are three important factors that make it a standard method for fingerprint matching purposes. The performance of the proposed algorithm is evaluated on the database $FVC2002$. The results show that fingerprints of the same fingers have higher scores than different fingers. Since the fingerprints that the difference between the number of their layers is more than $2$ and the minutiae matching score lower than 0.15 are ignored, the better results are obtained.
Serviços de apoio à gestão de dados de investigação na Universidade do Minho: do repositório de dados aos materiais de suporte
Creators: name: Vieira, André
name: Moura, Paula
name: Príncipe, Pedro
Publisher: name: Zenodo
Year: 2022

description: Apresentação realizada na sessão O meu Póster em 40 segundos da 13ª Conferência Lusófona de Ciência Aberta, formato híbrido, de 10 a 12 de outubro de 2022.
In Populo
Creators: name: Turner, Abigail Norris
name: Pence, Brian W.
name: Westreich, Daniel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: While the Latin phrase in vitro and in vivo are well understood in the medical literature, neither term accurately describes the science performed at the level of the population by epidemiologists and others. In particular, results in a single organism can differ broadly from results in a population, for reasons from random error to herd immunity. We suggest that in populo, meaning literally “in the people”, can fill this gap in the literature, and urge its wide adoption.
Linear Regression With an Independent Variable Subject to a Detection Limit
Creators: name: Cole, Stephen R.
name: Nie, Lei
name: Chu, Haitao
name: Liu, Chenglong
name: Schisterman, Enrique F.
name: Vexler, Albert
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Linear regression with a left-censored independent variable X due to limit of detection (LOD) was recently considered by 2 groups of researchers: Richardson and Ciampi, and Schisterman and colleagues.
title: The 'commodification' of 'children-in-need' : implications for policies and practices
Creators: name: Maria Petrie, Stephanie
Publisher: name: University of Liverpool Repository
Year: 2023

description: The following thesis is presented in the form of an over-arching argument linking together 13 submitted publications. The res.earch aims of the work presented are: 1. To identify, analyse and consider the implications for 'children-inneed' ofthe organisational structures and processes for children's services following the CA 1989 and the NHS and CC Act 1990. 2. To conceptually explore constructions ofthe welfare subject and how these interact with the market paradigm and impact upon 'children-in-need' . 3. To critically examine the common and individual needs of 'children-in-need' and the characteristics ofthe 'helping' relationship between the 'child-in-need' and the professional adult. 4. To pursue these enquiries in a participatory way with children and young people and develop ethical and useful methodologies and approaches throughout all stages of the research process. 5. To contribute to welf~re policies and practices for 'children-in-need'.
Modellierung und Optimierung der strömungstechnischen Vorgänge in Abweiseradsichtern
Creators: name: Betz, Michael
Publisher: name: KIT Scientific Publishing
Year: 2022
Subjects: Gas-Partikel-Klassierung
Abweiseradsichter
Mathematische Modellierung
Numerische Simulation
Optimierung
Gas particle separation
Centrifugal Classifier
Mathematical Modeling
Numerical Simulation
Optimization

description: Abweiseradsichter sind verfahrenstechnische Maschinen, die bei der Klassierung von Gas-Partikel-Gemischen zum Einsatz kommen. Das Ziel dieser Arbeit ist die Reduktion der Energiekosten durch eine Verbesserung der Trenneigenschaften sowie eine Senkung des Druckverlusts. Neben konstruktiven Maßnahmen steht dabei auch die Modellbildung im Vordergrund. Zur Entwicklung der Modelle ist ein tieferes Verständnis der strömungstechnischen Vorgängen erforderlich.
Geometry and symmetry of quantum and classical-quantum variational principles
Creators: name: Luz, Esther Bonet
name: Tronci, Cesare
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: This paper presents the geometric setting of quantum variational principles and extends it to comprise the interaction between classical and quantum degrees of freedom. Euler-Poincaré reduction theory is applied to the Schrödinger, Heisenberg and Wigner-Moyal dynamics of pure states. This construction leads to new variational principles for the description of mixed quantum states. The corresponding momentum map properties are presented as they arise from the underlying unitary symmetries. Finally, certain semidirect-product group structures are shown to produce new variational principles for Dirac's interaction picture and the equations of hybrid classical-quantum dynamics.
description: First version. 23 pages. Comments welcome
Nonparametric Bayes Shrinkage for Assessing Exposures to Mixtures Subject to Limits of Detection
Creators: name: Herring, Amy H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Assessing potential associations between exposures to complex mixtures and health outcomes may be complicated by a lack of knowledge of causal components of the mixture, highly correlated mixture components, potential synergistic effects of mixture components, and difficulties in measurement. We extend recently proposed nonparametric Bayes shrinkage priors for model selection to investigations of complex mixtures by developing a formal hierarchical modeling framework to allow different degrees of shrinkage for main effects and interactions and to handle truncation of exposures at a limit of detection. The methods are used to shed light on data from a study of endometriosis and exposure to environmental polychlorinated biphenyl congeners.
Photoinduced host-to-guest electron transfer in a self-assembled coordination cage
Creators: name: Ganta, Sudhakar
name: Borter, Jan-Hendrik
name: Drechsler, Christoph
name: Holstein, Julian J.
name: Schwarzer, Dirk
name: Clever, Guido H.
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: Supramolecular chemistry
subject: Coordination cage
subject: Host-guest complex
subject: Electron-rich ligand/electron deficient guest
subject: Photoinduced electron transfer
subject: Light-induced charge separation
subject: Host-guest charge transfer
subject: 540

description: A [Pd2L4] coordination cage, assembled from electron-rich phenothiazine-based ligands and encapsulating an electron-deficient anthraquinone-based disulfonate guest, is reported. Upon excitation at 400 nm, transient absorption spectroscopy unveils photoinduced electron transfer from the host's chromophores to the guest, as indicated by characteristic spectral features assigned to the oxidized donor and reduced acceptor. The structure of the host–guest complex was characterized by NMR spectroscopy, mass spectrometry and single-crystal X-ray analysis. Spectroelectrochemical experiments and DFT calculations both agree with the proposed light-induced charge separation. A kinetic analysis of the involved charge transfer channels reveals, besides a guest-independent LMCT path, 44% efficiency for the host–guest charge transfer (HGCT).
Parental Autoimmune Diseases Associated With Autism Spectrum Disorders in Offspring
Creators: name: Söderberg, Karin C.
name: Sparen, Par
name: Daniels, Julie L.
name: Feychting, Maria
name: Hultman, Christina
name: Forssen, Ulla
name: Cnattingius, Sven
name: Keil, Alexander
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Autism spectrum disorders are often idiopathic. Studies have suggested associations between immune response and these disorders. We explored associations between parental autoimmune disorders and children’s diagnosis of autism by linking Swedish registries.
Cooperative Assistance in Robotic Surgery through Multi-Agent Reinforcement Learning
Creators: name: Scheikl, Paul Maria
name: Gyenes, Balázs
name: Davitashvili, Tornike
name: Younis, Rayan
name: Schulze, André
name: Müller-Stich, Beat P.
name: Neumann, Gerhard
name: Wagner, Martin
name: Mathis-Ullrich, Franziska
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Cognitive cooperative assistance in robot-assisted surgery holds the potential to increase quality of care in minimally invasive interventions. Automation of surgical tasks promises to reduce the mental exertion and fatigue of surgeons. In this work, multi-agent reinforcement learning is demonstrated to be robust to the distribution shift introduced by pairing a learned policy with a human team member. Multi-agent policies are trained directly from images in simulation to control multiple instruments in a sub task of the minimally invasive removal of the gallbladder. These agents are evaluated individually and in cooperation with humans to demonstrate their suitability as autonomous assistants. Compared to human teams, the hybrid teams with artificial agents perform better considering completion time (44.4% to 71.2% shorter) as well as number of collisions (44.7% to 98.0% fewer). Path lengths, however, increase under control of an artificial agent (11.4% to 33.5% longer). A multi-agent formulation of the learning problem was favored over a single-agent formulation on this surgical sub task, due to the sequential learning of the two instruments. This approach may be extended to other tasks that are difficult to formulate within the standard reinforcement learning framework. Multi-agent reinforcement learning may shift the paradigm of cognitive robotic surgery towards seamless cooperation between surgeons and assistive technologies.
description: Accepted at the 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2021)
Perinatal Exposure to Hazardous Air Pollutants and Autism Spectrum Disorders at Age 8
Creators: name: Morrissey, Joseph
name: Chen, Jiu-Chiuan
name: Kalkbrenner, Amy E.
name: Emch, Michael
name: Poole, Charles
name: Daniels, Julie L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Hazardous air pollutants are plausible candidate exposures for autism spectrum disorders. They have been explored in recent studies for their role in the development of these disorders.
Forelia orientalis Lundblad 1969
Creators: name: Pešić, Vladimir
name: Chatterjee, Tapas
name: Bordoloi, Sabitry
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Pionidae
Forelia
Forelia orientalis

description: Forelia orientalis Lundblad, 1969
Remarks: Lundblad (1969) did not feel certain about the locality of his specimens, they were either from Calcutta (West Bengal) or Colombo (Sri Lanka).
Distribution: India or Sri Lanka.
description: Published as part of Pešić, Vladimir, Chatterjee, Tapas & Bordoloi, Sabitry, 2010, A checklist of the water mites (Acari: Hydrachnidia) of India, with new records and description of one new species, pp. 1-54 in Zootaxa 2617 (1) on page 49, DOI: 10.11646/zootaxa.2617.1.1, http://zenodo.org/record/197964
Purification of SLC17A5 from Expi293FTM Cells
Creators: name: David B. Sauer
name: Huanyu Li
name: Sagar Raturi
name: Andreea Scacioc
name: Tina Bohstedt
name: Abilasha Balakrishnan
Publisher: name: Zenodo
Year: 2022
Subjects: Protocol

description: This protocol is used to purify the SLC transporter expressed in Expi293FTM Cells using detergent solubilization followed by a series of different chromatographic methods. Depending on the nature of the expression construct and experimental requirements, the GFP tag can be removed using a proteolytic reaction.
Top-quark production at approximate N$^3$LO
Creators: name: Kidonakis, Nikolaos
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss recent theoretical results with soft-gluon corrections for various top-quark production processes through approximate N$^3$LO, including soft anomalous dimensions through three loops. I present numerical results for total cross sections and differential distributions for top-pair and $tW$ production as well as for three-particle final states with a top quark and a Higgs boson. I show that soft-gluon corrections are dominant for a large range of collider energies.
description: 6 pages, 4 figures; contribution to the proceedings of the EPS-HEP 2021 conference
On the transferability of three water models developed by adaptive force matching
Creators: name: Hu, Hongyi
name: Ma, Zhonghua
name: Wang, Feng
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Water is perhaps the most simulated liquid. Recently three water models have been developed following the adaptive force matching (AFM) method that provides excellent predictions of water properties with only electronic structure information as a reference. Compared to many other electronic structure based force fields that rely on fairly sophisticated energy expressions, the AFM water models use point-charge based energy expressions that are supported by most popular molecular dynamics packages. An outstanding question regarding simple force fields is whether such force fields provide reasonable transferability outside of their conditions of parameterization. A survey of three AFM water models, B3LYPD-4F, BLYPSP-4F, and WAIL are provided for simulations under conditions ranging from the melting point up to the critical point. By including ice-Ih configurations in the training set, the WAIL potential predicts the melting temperate, TM, of ice-Ih correctly. Without training for ice, BLYPSP-4F underestimates TM by about 15 K. Interestingly, the B3LYPD-4F model gives a TM 14 K too high. The overestimation of TM by B3LYPD-4F mostly likely reflects a deficiency of the B3LYP reference. The BLYPSP-4F model gives the best estimate of the boiling temperature TB and is arguably the best potential for simulating water in the temperature range from TM to TB. None of the three AFM potentials provides a good description of the critical point. Although the B3LYPD-4F model gives the correct critical temperature TC and critical density, there are good reasons to believe the agreement is reached fortuitously. Links to Gromacs input files for the three water models are provided at the end of the paper.
description: 25 pages, 2 figures
The Effect of HAART on HIV RNA Trajectory Among Treatment-naïve Men and Women: A Segmental Bernoulli/Lognormal Random Effects Model With Left Censoring
Creators: name: Chmiel, Joan S.
name: Chu, Haitao
name: Li, Xiuhong
name: Gange, Stephen J.
name: Hoover, Donald R.
name: Liu, Chenglong
name: Jacobson, Lisa P.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Highly active antiretroviral therapy (HAART) rapidly suppresses human immunodeficiency virus (HIV) viral replication and reduces circulating viral load, but the long-term effects of HAART on viral load remain unclear.
The Relationship Between Neighborhood Poverty and Alcohol Use: Estimation by Marginal Structural Models
Creators: name: Gordon-Larsen, Penny
name: Diez-Roux, Ana V.
name: Kiefe, Catarina
name: Cerdá, Magdalena
name: Tchetgen Tchetgen, Eric
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Previous studies on the relationship of neighborhood disadvantage with alcohol use or misuse have often controlled for individual characteristics on the causal pathway, such as income—thus potentially underestimating the relationship between disadvantage and alcohol consumption.
Uso de software de fonte aberta em instituições de ensino: exemplo da Universidade Aberta ISCED
Creators: name: Pempe, Celestino Alexandre
Publisher: name: Zenodo
Year: 2022

description: Apresentação realizada na sessão O meu Póster em 40 segundos da 13ª Conferência Lusófona de Ciência Aberta, formato híbrido, de 10 a 12 de outubro de 2022.
A Comparison of Methods to Estimate the Hazard Ratio Under Conditions of Time-varying Confounding and Nonpositivity
Creators: name: Westreich, Daniel J.
name: Naimi, Ashley I.
name: Cole, Stephen R.
name: Richardson, David B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: In occupational epidemiologic studies, the healthy-worker survivor effect refers to a process that leads to bias in the estimates of an association between cumulative exposure and a health outcome. In these settings, work status acts both as an intermediate and confounding variable, and may violate the positivity assumption (the presence of exposed and unexposed observations in all strata of the confounder). Using Monte Carlo simulation, we assess the degree to which crude, work-status adjusted, and weighted (marginal structural) Cox proportional hazards models are biased in the presence of time-varying confounding and nonpositivity. We simulate data representing time-varying occupational exposure, work status, and mortality. Bias, coverage, and root mean squared error (MSE) were calculated relative to the true marginal exposure effect in a range of scenarios. For a base-case scenario, using crude, adjusted, and weighted Cox models, respectively, the hazard ratio was biased downward 19%, 9%, and 6%; 95% confidence interval coverage was 48%, 85%, and 91%; and root MSE was 0.20, 0.13, and 0.11. Although marginal structural models were less biased in most scenarios studied, neither standard nor marginal structural Cox proportional hazards models fully resolve the bias encountered under conditions of time-varying confounding and nonpositivity.
Air Pollution, Lung Function, and Physical Symptoms in Communities Near Concentrated Swine Feeding Operations
Creators: name: Wing, Steve
name: Morland, Kimberly B.
name: Schinasi, Leah
name: Horton, Rachel Avery
name: Guidry, Virginia T.
name: Marshall, Stephen W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Concentrated animal feeding operations emit air pollutants that may affect health. We examined associations of reported hog odor and of monitored air pollutants with physical symptoms and lung function in people living within 1.5 miles of hog operations.
Discordance in National Estimates of Hypertension Among Young Adults
Creators: name: Tabor, Joyce W.
name: Halpern, Carolyn T.
name: Hussey, Jon M.
name: Lau, Yan
name: Nguyen, Quynh C.
name: Entzel, Pamela P.
name: Whitsel, Eric A.
name: Suchindran, Chirayath
name: Harris, Kathleen Mullan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: In the U.S., where coronary heart disease (CHD) is the leading cause of mortality, CHD risk assessment is a priority and accurate blood pressure (BP) measurement is essential.
Estimating the Effects of Multiple Time-varying Exposures Using Joint Marginal Structural Models: Alcohol Consumption, Injection Drug Use, and HIV Acquisition
Creators: name: Cole, Stephen R.
name: Mehta, Shruti H.
name: Howe, Chanelle J.
name: Kirk, Gregory D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: The joint effects of multiple exposures on an outcome are frequently of interest in epidemiologic research. In 2001, Hernán, Brumback, and Robins (JASA 2001; 96: 440–448) presented methods for estimating the joint effects of multiple time-varying exposures subject to time-varying confounding affected by prior exposure using joint marginal structural models. Nonetheless, the use of these joint models is rare in the applied literature. Minimal uptake of these joint models, in contrast to the now widely used standard marginal structural model, is due in part to a lack of examples demonstrating the method. In this paper, we review the assumptions necessary for unbiased estimation of joint effects as well as the distinction between interaction and effect measure modification. We demonstrate the use of marginal structural models for estimating the joint effects of alcohol consumption and injection drug use on HIV acquisition, using data from 1,525 injection drug users in the AIDS Link to Intravenous Experience cohort study. In the joint model, the hazard ratio (HR) for heavy drinking in the absence of any drug injections was 1.58 (95% confidence interval= 0.67–3.73). The HR for any drug injections in the absence of heavy drinking was 1.78 (1.10–2.89). The HR for heavy drinking and any drug injections was 2.45 (1.45–4.12). The P values for multiplicative and additive interaction were 0.7620 and 0.9200, respectively, indicating a lack of departure from effects that multiply or add. However, we could not rule out interaction on either scale due to imprecision.
Westow, Th., Attitude Chrétienne nouvelle - témoignage dun laic. Ed. X. Mappus. Vol. de 148 ps. 180x120. Lyon 1965
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1968

description: Theologica, v. 3 n. 1 (1968)
Form factors and branching fraction calculations for $B_s \to D_s^{(*)} \ell^+ ν_\ell$ in view of LHCb observation
Creators: name: Soni, Nakul R.
name: Issadykov, Aidos
name: Gadaria, Akshay N.
name: Tyulemissov, Zhomart
name: Patel, Janaki J.
name: Pandya, Jignesh N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In light of the LHCb observations about the $B_s \to D_s^{(*)}\ell ν_\ell$ semileptonic decays, we study these channels within the Standard Model framework of covariant confined quark model. The necessary transition form factors are computed in the entire dynamical range of momentum transfer squared with built-in infrared confinement. Our computed ratios of the decay widths from tau mode to muon mode for $D_s$ and $D_s^*$ mesons are found to be $R(D_s) = 0.271 \pm 0.069$ and $R(D_s^*) = 0.240 \pm 0.038$. We further determine the ratio of the decay width from $D_s$ and $D_s^*$ channel for muon mode $Γ(B_s \to D_s μ^+ ν_μ)/Γ(B_s \to D_s^* μ^+ ν_μ) = 0.451 \pm 0.093$. Our results are in excellent agreement with the data from the latest LHCb experiments as well as lattice quantum chromodynamics simulations. We also compare the shape of differential decay distribution for $B_s \to D_s^* μ^+ ν_μ$ with the LHCb data and our results are in very good agreement throughout all the individual bins. Some other physical observables such as forward-backward asymmetry and longitudinal polarizations of leptons in the final state are also computed.
description: Accepted for publication in European Physical Journal Plus
Partial covering of emission regions of Q 0528-250 by intervening H$_2$ clouds
Creators: name: Klimenko, V. V.
name: Balashev, S. A.
name: Ivanchik, A. V.
name: Ledoux, C.
name: Noterdaeme, P.
name: Petitjean, P.
name: Srianand, R.
name: Varshalovich, D. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of the molecular hydrogen absorption system at z$_{\rm abs}$ = 2.811 in the spectrum of the blazar Q0528-250. We demonstrate that the molecular cloud does not cover the background source completely. The partial coverage reveals itself as a residual flux in the bottom of saturated H_2 absorption lines. This amounts to about (2.22$\pm$0.54)% of the continuum and does not depend on the wavelength. This value is small and it explains why this effect has not been detected in previous studies of this quasar spectrum. However, it is robustly detected and significantly higher than the zero flux level in the bottom of saturated lines of the Ly-alpha forest, (-0.21$\pm$0.22)%. The presence of the residual flux could be caused by unresolved quasar multicomponents, by light scattered by dust, and/or by jet-cloud interaction. The H$_2$ absorption system is very well described by a two-component model without inclusion of additional components when we take partial coverage into account. The derived total column densities in the H$_2$ absorption components A and B are logN(H$_2$)[cm$^{-2}$] = 18.10$\pm$0.02 and 17.82$\pm$0.02, respectively. HD molecules are present only in component B. Given the column density, logN(HD)= 13.33$\pm$0.02, we find N(HD)/2N(H$_2$)=(1.48$\pm$0.10)x10$^{-5}$, significantly lower than previous estimations. We argue that it is crucial to take into account partial coverage effects for any analysis of H$_2$ bearing absorption systems, in particular when studying the physical state of high-redshift interstellar medium.
description: Accepted for MNRAS
Monsenhor Joaquim Carreira, Fátima e o Evangelho. Ed. Livraria Sampedro. Vol. de 210 ps. 230x150. Lisboa 1967
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1968

description: Theologica, v. 3 n. 1 (1968)
Purification of SLC15A4 from Expi293FTM Cells
Creators: name: David B. Sauer
name: Huanyu Li
name: Sagar Raturi
name: Andreea Scacioc
name: Tina Bohstedt
name: Abilasha Balakrishnan
Publisher: name: Zenodo
Year: 2022
Subjects: Protocol

description: This protocol is used to purify the SLC transporter expressed in Expi293FTM Cells using detergent solubilization followed by a series of different chromatographic methods. Depending on the nature of the expression construct and experimental requirements, the GFP tag can be removed using a proteolytic reaction.
Fecal Indicators in Sand, Sand Contact, and Risk of Enteric Illness Among Beachgoers
Creators: name: Wing, Steve
name: Marshall, Stephen
name: Chern, Eunice
name: Dufour, Alfred P.
name: Brenner, Kristen P.
name: Serre, Marc
name: Noble, Rachel
name: Love, David C.
name: Wade, Timothy J.
name: Heaney, Christopher D.
name: Haugland, Richard A.
name: Sams, Elizabeth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Beach sand can harbor fecal indicator organisms and pathogens, but enteric illness risk associated with sand contact remains unclear.
From Clarity to Efficiency for Distributed Algorithms
Creators: name: Liu, Yanhong A.
name: Stoller, Scott D.
name: Lin, Bo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Programming Languages (cs.PL)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: This article describes a very high-level language for clear description of distributed algorithms and optimizations necessary for generating efficient implementations. The language supports high-level control flows where complex synchronization conditions can be expressed using high-level queries, especially logic quantifications, over message history sequences. Unfortunately, the programs would be extremely inefficient, including consuming unbounded memory, if executed straightforwardly. We present new optimizations that automatically transform complex synchronization conditions into incremental updates of necessary auxiliary values as messages are sent and received. The core of the optimizations is the first general method for efficient implementation of logic quantifications. We have developed an operational semantics of the language, implemented a prototype of the compiler and the optimizations, and successfully used the language and implementation on a variety of important distributed algorithms.
A Parabolic Problem with a Fractional-Time Derivative
Creators: name: Allen, Mark
name: Caffarelli, Luis
name: Vasseur, Alexis
Publisher: name: arXiv
Year: 2015
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study regularity for a parabolic problem with fractional diffusion in space and a fractional time derivative. Our main result is a De Giorgi-Nash-Moser Holder regularity theorem for solutions in a divergence form equation. We also prove results regarding existence, uniqueness, and higher regularity in time.
Postdiagnosis Change in Bodyweight and Survival After Breast Cancer Diagnosis
Creators: name: Satia, Jessie A.
name: Gammon, Marilie D.
name: Cleveland, Rebecca
name: Bradshaw, Patrick T.
name: Stevens, June
name: Ibrahim, Joseph G.
name: Abrahamson, Page E.
name: Neugut, Alfred I.
name: Teitelbaum, Susan L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Weight gain after diagnosis is common among women with breast cancer, yet results have been inconsistent among the few studies examining its effects on survival.
Irreducible polynomials from a cubic transformation
Creators: name: Mattarei, Sandro
name: Pizzato, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 12E05

description: Let $R(x)=g(x)/h(x)$ be a rational expression of degree three over the finite field $\mathbb{F}_q$. We count the irreducible polynomials in $\mathbb{F}_q[x]$, of a given degree, which have the form $h(x)^{\mathrm{deg}\, f}\cdot f\bigl(R(x)\bigr)$ for some $f(x)\in\mathbb{F}_q[x]$. As an application, we recover the number of irreducible transformation shift registers of order three, previously computed by Jiang and Yang.
description: 20 pages
Fat wedge filtrations and decomposition of polyhedral products
Creators: name: Iriye, Kouyemon
name: Kishimoto, Daisuke
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Topology (math.AT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The polyhedral product constructed from a collection of pairs of cones and their bases and a simplicial complex $K$ is studied by investigating its filtration called the fat wedge filtration. We give a sufficient condition for decomposing the polyhedral product in terms of the fat wedge filtration of the real moment-angle complex for $K$, which is a desuspension of the decomposition of the suspension of the polyhedral product due to Bahri, Bendersky, Cohen, and Gitler. We show that the condition also implies a strong connection with the Golodness of $K$, and is satisfied when $K$ is dual sequentially Cohen-Macaulay over $\mathbb{Z}$ or $\lceil\frac{\dim K}{2}\rceil$-neighborly so that the polyhedral product decomposes. Specializing to moment-angle complexes, we also give a necessary and sufficient condition for their decomposition and co-H-structures in terms of their fat wedge filtration.
description: The paper includes the result of arXiv:1306.6221. To appear in Kyoto J. Math
B. Häring, Problemas actuais da Teologia Moral e Pastoral. Vol. II. A caminho da maturidade cristã, pg. 387, versão do Dr. José A. Gomes da Silva Marques. Sociedade Mariológica «Mater Ecclesiae». Braga 1967
Creators: name: Santos, Alexandrino Fernandes Dos
Publisher: name: Theologica
Year: 1968

description: Theologica, v. 3 n. 1 (1968)
An investigation of factors affecting high-precision Sr isotope analyses (87Sr/86Sr and δ88/86Sr) by MC-ICP-MS
Creators: name: Wang, Jiuyuan
name: Asael, Dan
name: Planavsky, Noah J.
name: Tarhan, Lidya G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Geophysics (physics.geo-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The abundance and fractionation of the stable strontium (Sr) isotope system are being increasingly utilized to move forward our understanding in geological and cosmological processes. Two analytical techniques are commonly used to measure stable Sr isotopes: 1) double-spike thermal ionization mass spectrometry (DS-TIMS) and 2) Zr-doped sample-standard bracketing multi-collector inductively coupled plasma mass spectrometry (Zr-doped SSB via MC-ICP-MS). Relative to DS-TIMS, Zr-doped SSB via MC-ICP-MS allows simultaneous determinations of both 87Sr/86Sr and 88Sr/86Sr ratios, increasing measurement efficiency and sample throughput. However, this technique is currently associated with greater uncertainties in measurement precision and accuracy. In this study, we evaluated potential factors that can affect the quality of Sr isotope measurements during Zr-doped SSB. Our tests show that incomplete Sr recovery during chromatographic separation, mismatches of Sr and Zr concentrations and acid molarity between sample and bracketing standard, and cation contamination could all affect the precision and accuracy of Sr isotope measurements. We present evidence that, with updated preparation procedures and diligent concentration checks, a long-term reproducibility (2σSD: 87Sr/86Sr = +/-0.000015 and δ88/86Sr = +/-0.03 permil) comparable to that of DS-TIMS is achievable when using the Zr-doped SSB method via MC-ICP-MC.