cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stability of Soft Quasicrystals in a Coupled-Mode Swift-Hohenberg Model for Three-Component Systems
Creators: name: Jiang, Kai
name: Tong, Jiajun
name: Zhang, Pingwen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this article, we discuss the stability of soft quasicrystalline phases in a coupled-mode Swift-Hohenberg model for three-component systems, where the characteristic length scales are governed by the positive-definite gradient terms. Classic two-mode approximation method and direct numerical minimization are applied to the model. In the latter approach, we apply the projection method to deal with the potentially quasiperiodic ground states. A variable cell method of optimizing the shape and size of higher-dimensional periodic cell is developed to minimize the free energy with respect to the order parameters. Based on the developed numerical methods, we rediscover decagonal and dodecagonal quasicrystalline phases, and find diverse periodic phases and complex modulated phases. Furthermore, phase diagrams are obtained in various phase spaces by comparing the free energies of different candidate structures. It does show not only the important roles of system parameters, but also the effect of optimizing computational domain. In particular, the optimization of computational cell allows us to capture the ground states and phase behavior with higher fidelity. We also make some discussions on our results and show the potential of applying our numerical methods to a larger class of mean-field free energy functionals.
description: 26 pages, 13 figures; accepted by Communications in Computational Physics
Fisher matrix predictions for detecting the cosmological 21 cm signal with the Ooty Wide Field Array (OWFA)
Creators: name: Bharadwaj, Somnath
name: Sarkar, Anjan Kumar
name: Ali, Sk. Saiyad
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have used the Fisher matrix formalism to quantify the prospects of detecting the z = 3.35 redshifted 21-cm HI power spectrum with the upcoming radio-imterferometric array OWFA. OWFA's frequency and baseline coverage spans comoving Fourier modes (k) in the range 0.018 to 2.7 [1/Mpc]. The OWFA HI signal, however, is predominantly from the range k below 0.2 [1/Mpc]. The larger modes, though abundant, do not contribute much to the HI signal. In this work we have focused on combining the entire signal to achieve a detection. We find that a 5-sigma detection of A_{HI} is possible with ~ 150 hr of observations, here A^2 _{HI} is the amplitude of the HI power spectrum. We have also carried out a joint analysis for A_{HI} and the redshift space distortion parameter. Our study shows that OWFA is very sensitive to the amplitude of the HI power spectrum. However, the anisotropic distribution of the k modes does not make it very suitable for measuring the redshift space distortion parameter.
description: 17 pages, 7 figures and 2 tables
Underlying data and CONSORT diagram for an embedded randomised controlled retention trial of personalised text messages compared to non-personalised text messages in an orthopaedic setting
Creators: name: Mitchell, Alex
name: Cook, Liz
name: Dean, Alexandra
name: Fairhurst, Caroline
name: Northgraves, Matthew
name: Torgerson, David
name: Reed, Mike
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: Background: Several studies have investigated whether personalising trial documentation can aid recruitment and retention. We did a ‘Study Within A Trial’ (SWAT) evaluating the effectiveness of a personalised text message compared to a non-personalised text message, on the retention rate in a large orthopaedic trial. Methods: The SWAT was embedded in the KReBS trial. The primary outcome was the proportion of 12-month questionnaires returned. Secondary outcomes were the proportion of questionnaires completed and time to questionnaire return. Binary data were analysed using logistic regression and time to return using Cox proportional hazards regression. Odds ratios (OR) and hazard ratios (HR) are presented, with associated 95% confidence intervals (CI) and p-values. Results: In total, 1465 participants were included in the SWAT. In the personalised group, 644/723 (89.1%) of participants returned a questionnaire, compared to 654/742 (88.1%) in the non-personalised group (Table 3). The absolute difference in return rate was 0.9% (95% CI: -2.3% to 4.2%; p=0.57). There was no evidence of a difference between the groups in the likelihood of returning a questionnaire (OR 1.09; 95% CI: 0.79 to 1.51; p=0.61), the likelihood of returning a complete questionnaire (OR 1.11; 95% CI: 0.82 to 1.51; p=0.50) nor in time to return (HR 1.05; 95% CI: 0.94 to 1.17; p=0.40). Conclusion: This SWAT adds to the growing evidence base for whether personalised text messages are effective.
The Kremlin's constraints: a three-tiered model for explaining gubernatorial vulnerability in Russia, 2005-2007
Creators: name: Green, Matthew Nicholas
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: This paper examines the new system of gubernatorial appointments in Russia and argues that in spite of the expansion of federal powers in this area, the federal center is still restricted in its usage of these powers. These limitations are demonstrated through the creation of an index that assesses gubernatorial vulnerability and produces a three-tiered model of strength classification. These classifications dictate to the center both a governor's susceptibility to replacement as well as the terms on which any change will take place. The model is supported by the introduction of three case studies, one belonging to each strength tier.
Improving Cosmological Distance Measurements Using Twin Type Ia Supernovae
Creators: name: Fakhouri, H. K.
name: Boone, K.
name: Aldering, G.
name: Antilogus, P.
name: Aragon, C.
name: Bailey, S.
name: Baltay, C.
name: Barbary, K.
name: Baugh, D.
name: Bongard, S.
name: Buton, C.
name: Chen, J.
name: Childress, M.
name: Chotard, N.
name: Copin, Y.
name: Fagrelius, P.
name: Feindt, U.
name: Fleury, M.
name: Fouchez, D.
name: Gangler, E.
name: Hayden, B.
name: Kim, A. G.
name: Kowalski, M.
name: Leget, P. -F.
name: Lombardo, S.
name: Nordin, J.
name: Pain, R.
name: Pecontal, E.
name: Pereira, R.
name: Perlmutter, S.
name: Rabinowitz, D.
name: Ren, J.
name: Rigault, M.
name: Rubin, D.
name: Runge, K.
name: Saunders, C.
name: Scalzo, R.
name: Smadja, G.
name: Sofiatti, C.
name: Strovink, M.
name: Suzuki, N.
name: Tao, C.
name: Thomas, R. C.
name: Weaver, B. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We introduce a method for identifying "twin" Type Ia supernovae, and using them to improve distance measurements. This novel approach to Type Ia supernova standardization is made possible by spectrophotometric time series observations from the Nearby Supernova Factory (SNfactory). We begin with a well-measured set of supernovae, find pairs whose spectra match well across the entire optical window, and then test whether this leads to a smaller dispersion in their absolute brightnesses. This analysis is completed in a blinded fashion, ensuring that decisions made in implementing the method do not inadvertently bias the result. We find that pairs of supernovae with more closely matched spectra indeed have reduced brightness dispersion. We are able to standardize this initial set of SNfactory supernovae to 0.083 +/- 0.012 magnitudes, implying a dispersion of 0.072 +/- 0.010 magnitudes in the absence of peculiar velocities. We estimate that with larger numbers of comparison SNe, e.g, using the final SNfactory spectrophotometric dataset as a reference, this method will be capable of standardizing high-redshift supernovae to within 0.06-0.07 magnitudes. These results imply that at least 3/4 of the variance in Hubble residuals in current supernova cosmology analyses is due to previously unaccounted-for astrophysical differences among the supernovae
description: 37 pages, 9 figures, 5 tables. Accepted for publication in ApJ. Fixed typo in arXiv abstract
Blow-up solutions for $L^2$-supercritical gKdV equations with exactly $k$ blow-up points
Creators: name: Lan, Yang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we consider the slightly $L^2$-supercritical gKdV equations $\partial_t u+(u_{xx}+u|u|^{p-1})_x=0$, with the nonlinearity $5
description: 35 Pages. Minor revision
Healing Waters: The Recovery of the Haw River
Creators: name: Ferrell, Casey
Publisher: name: University of North Carolina at Chapel Hill
Year: 2012

description: The purpose of this thesis is to present an in-depth look at the environmental recovery of the Haw River. From decades of poor environmental practices, including chemical dumping and mismanaged suburban growth, the Haw River was laid waste in the 1970s. But thirty years later, the river has experienced a remarkable turnaround. Pollution levels are at their lowest in decades, having been reduced by more than half from the amounts found in the early 1980s. This thesis examines the causes of that reversal, the subsequent efforts to maintain and preserve the environmental health of the Haw River basin, and the social and economic impact the river's recovery is having on municipalities within its watershed.
CryoCloud community onboarding training (Dec 2, 2022)
Creators: name: Snow, Tasha
name: Millstein, Joanna
name: Leong, Wei Ji
name: Scheick, Jessica
name: Sauthoff, Wilson
name: Colliander, James
name: Munroe, James
name: Perez, Fernando
name: Yuvi Panda
name: Felikson, Denis
name: Sutterley, Tyler
name: Siegfried, Matthew
Publisher: name: Zenodo
Year: 2022
Subjects: CryoCloud
cloud-computing
NASA
Transform to Open Science
open science

description: Slides for the onboarding training for users of the CryoCloud JupyterHub. This presentation was recorded in a video (https://youtu.be/QNrDlwiomgc) that provides information about the CryoCloud project, how to contribute to the community, a demo for accessing and using the JupyterHub, and a demo for accessing NASA data in the cloud. CryoCloud (cryointhecloud.com) is maintained through a partnership between 2i2c (2i2c.org) and NASA Cryosphere research communities. This hub work made possible through funding from the NASA Transform to Open Science program, NASA Cryosphere program, and NASA ICESat-2 Science Team.
description: This work was funded by the NASA Transform to Open Science program (grant #80NSSC23K0002), and the NASA Cryosphere Program and ICESat-2 Science Team (grant #80NSSC22K1877).
Bio-based composite footbridge
Creators: name: Blok, Rijk
name: Smits, Joris
name: Gkaidatzis, Rafail
name: Teuffel, Patrick
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2019

description: This paper deals with the design, production and monitoring of a bio-composite footbridge with a span of 14 meters across the river Dommel in the city of Eindhoven, the Netherlands. The specific bio-composite material that was used for this research is a Natural-Fibre Reinforced Bio-Polymer (NFRBP). The goal of the research is to prove that NFRBP can be applied as a load bearing structure in an outdoor environment. For this purpose, a multidisciplinary team of academic researchers from two universities, together with a manufacturer from the NFRBP industry and the Centre of Expertise Biobased Economy (CoEBBE), developed a feasible design that could be produced by unskilled hands in a short period of time and within a limited budget. The footbridge was designed, built and installed within less than one year. In the two years after the installation of the footbridge, the structural behaviour of the bridge was monitored by means of optical fibre glass strands, integrated within the structure, with the purpose of measuring deformations and change in elasticity that occur over time.
description: A+BE | Architecture and the Built Environment, No. 3 (2019): The Art of Bridge Design
Analytic investigation of holographic phase transitions influenced by dark matter sector
Creators: name: Nakonieczny, Lukasz
name: Rogatko, Marek
name: Wysokinski, Karol. I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Superconductivity (cond-mat.supr-con)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analytically study the phase transitions between s-wave holographic insulator/superconductor and metal/superconductor. The problem is solved by the variational method for the Sturm-Liouville eigenvalue problem in the theory with dark matter sector of U(1)-gauge field coupled to the Maxwell field. Additionally in the probe limit we investigate the marginally stable modes of scalar perturbations in the AdS solitonic background, connected with magnetic field in the dark matter sector. We have found that even with dark matter sector the superconducting transition temperature $T_c$ is proportional to charge density $ρ$ in power 1/3. This value seem to be strong coupling modification of the exponent 2/3 known from the Bose - Einstein condensation of charged local pair bosons in narrow band superconductors. The holographic droplet solution is affected by the coupling to the dark matter. Interestingly in the probe limit the critical chemical potential increases with the decreasing coupling to dark matter making the condensation transition harder to appear.
description: 16 pages, REvTEx, 3 Figures, to be published in Phys.Rev.D15
Rethinking Sovereignty and the State: The American Revolution, the International Press, and the French Political Imagination
Creators: name: Weber, Steven
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This paper examines the ideological content and implications of texts from Britain and North America translated and published in France during the American Revolution and situates them in political dialogues already underway in the French public sphere by the 1770s. Focused on popular sovereignty, representation in government, and public control of state finances, the paper shows how documents from America and Britain reinforced radical political arguments in France that would ultimately undermine the absolutist old regime. These texts, circulated legally in newspapers and the state-run periodical Affaires de l’Angleterre et de l’Amérique, communicated numerous arguments in favor of populism and public action to French readers. This thesis places those texts into the cannon of subversive writings that circulated in the French public sphere in the years before the revolution, and thus places the American Revolution into the narrative of the buildup to France’s own political upheaval in 1789.
Vortices determine the dynamics of biodiversity in cyclical interactions with protection spillovers
Creators: name: Szolnoki, Attila
name: Perc, Matjaz
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computer Science and Game Theory (cs.GT)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: If rock beats scissors and scissors beat paper, one might assume that rock beats paper too. But this is not the case for intransitive relationships that make up the famous rock-paper-scissors game. However, the sole presence of paper might prevent rock from beating scissors, simply because paper beats rock. This is the blueprint for the rock-paper-scissors game with protection spillovers, which has recently been introduced as a new paradigm for biodiversity in well-mixed microbial populations. Here we study the game in structured populations, demonstrating that protection spillovers give rise to spatial patterns that are impossible to observe in the classical rock-paper-scissors game. We show that the spatiotemporal dynamics of the system is determined by the density of stable vortices, which may ultimately transform to frozen states, to propagating waves, or to target waves with reversed propagation direction, depending further on the degree and type of randomness in the interactions among the species. If vortices are rare, the fixation to waves and complex oscillatory solutions is likelier. Moreover, annealed randomness in interactions favors the emergence of target waves, while quenched randomness favors collective synchronization. Our results demonstrate that protection spillovers may fundamentally change the dynamics of cyclic dominance in structured populations, and they outline the possibility of programming pattern formation in microbial populations.
description: 17 pages, 9 figures; accepted for publication in New Journal of Physics
Uniform convergence of V-cycle multigrid algorithms for two-dimensional fractional Feynman-Kac equation
Creators: name: Chen, Minghua
name: Deng, Weihua
name: Serra-Capizzano, Stefano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper we derive new uniform convergence estimates for the V-cycle MGM applied to symmetric positive definite Toeplitz block tridiagonal matrices, by also discussing few connections with previous results. More concretely, the contributions of this paper are as follows: (1) It tackles the Toeplitz systems directly for the elliptic PDEs. (2) Simple (traditional) restriction operator and prolongation operator are employed in order to handle general Toeplitz systems at each level of the recursion. Such a technique is then applied to systems of algebraic equations generated by the difference scheme of the two-dimensional fractional Feynman-Kac equation, which describes the joint probability density function of non-Brownian motion. In particular, we consider the two coarsening strategies, i.e., doubling the mesh size (geometric MGM) and Galerkin approach (algebraic MGM), which lead to the distinct coarsening stiffness matrices in the general case: however, several numerical experiments show that the two algorithms produce almost the same error behaviour.
description: 26 pages
Discussions and Conclusions
Creators: name: Smits, Joris
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2019

description: In the previous four chapters design considerations for bridges have been identified at the four principal scale levels of the design; the scale of the landscape and the city, the scale of the bridge itself, the scale of the detail and at the scale of the composing material and the material properties. This chapter provides an integrated discussion and conclusions on the broad field of bridge design as it is outlined in the main body of this dissertation. The following chapter, Chapter 7, presents the recommendations for future research.
description: A+BE | Architecture and the Built Environment, No. 3 (2019): The Art of Bridge Design
Self-similar analytical solution of the critical fluctuations problem for the Bose-Einstein condensation in an ideal gas
Creators: name: Kocharovsky, Vitaly V.
name: Kocharovsky, Vladimir V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Paper is published in J. Phys. A: Math. Theor. 43 (2010) 225001, doi:10.1088/1751-8113/43/22/225001. Exact analytical solution for the universal probability distribution of the order parameter fluctuations as well as for the universal statistical and thermodynamic functions of an ideal gas in the whole critical region of Bose-Einstein condensation is obtained. A universal constraint nonlinearity is found that is responsible for all nontrivial critical phenomena of the BEC phase transition. Simple analytical approximations, which describe the universal structure of the critical region in terms of confluent hypergeometric or parabolic cylinder functions, as well as asymptotics of the exact solution are derived. The results for the order parameter, all higher-order moments of BEC fluctuations, and thermodynamic quantities, including specific heat, perfectly match the known asymptotics outside critical region as well as the phenomenological renormalization-group ansatz with known critical exponents in the close vicinity of the critical point. Thus, a full analytical solution to a long-standing problem of finding a universal structure of the lambda-point for BEC in an ideal gas is found.
description: 19 pages, 4 figures. arXiv admin note: substantial text overlap with arXiv:1511.01610
Nitrogen mass balance for spray fields fertilized with liquid swine waste
Creators: name: DeBerardinis, Jeffrey T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: The swine industry has expanded rapidly in North Carolina over the last two decades. Animals are raised in confined facilities where waste is flushed into open-air lagoons and the liquid phase is land-applied to receiving fields as an organic fertilizer. The post-application fate has not been fully documented. Therefore, on three occasions I experimentally applied liquid swine waste at typical doses (40 to 130 kg N ha-2) to defined plots in an active spray field on a representative North Carolina swine production facility and constructed an N mass balance for a 14 to 18 d period. Most of the N (52%) was assimilated into plants, while surprisingly little (9%) was volatilized. Microbial immobilization accounted for 10% of the applied N, while 12% migrated below the active soil zone (surface 20 cm) and was presumably lost to groundwater. The soil storage term averaged 16%, while the denitrification sink was inconsequential (<1%).
Perceptions of women who confront hostile and benevolent sexism
Creators: name: Schiralli, Jordana
name: Chasteen, Alison
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This project examines how female confronters of sexism are perceived depending on sexism type. Study 1 investigates hostile vs. benevolent sexism (as protective paternalism) and Studies 2 and 3 investigate hostile, protective paternalism, and complementary gender differentiation sexism types.
Weak approximation rates for integral functionals of Markov processes
Creators: name: Ganychenko, Iurii
name: Kulik, Alexei
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We obtain weak rates for approximation of an integral functional of a Markov process by integral sums. An assumption on the process is formulated only in terms of its transition probability density, and, therefore, our approach is not strongly dependent on the structure of the process. Applications to the estimates of the rates of approximation of the Feynman--Kac semigroup and of the price of "occupation-time options" are provided.
description: Published at http://dx.doi.org/10.15559/15-VMSTA37CNF in the Modern Stochastics: Theory and Applications (https://www.i-journals.org/vtxpp/VMSTA) by VTeX (http://www.vtex.lt/)
title: Morphological diversity of extracellular vesicles revealed by cryo-electron microscopy
Creators: name: Kapoor, Kshipra S.
name: McAndrews , Kathleen M.
name: Biswal, Lisa S.
name: Kalluri, Raghu
Publisher: name: ASEMV/AAEV
Year: 2022

description: Introduction: Exosomes are extracellular vesicles 80-150 nm in diameter, containing proteins, mRNAs, microRNAs, and lipids reflecting the parent cell. While there has been an extensive characterization of the cargo incorporated in exosomes, a detailed morphological analysis of exosomes purified by various isolation techniques has not been performed. Objective: We aimed to determine the heterogeneity of exosomes morphology and if such morphological features are conserved across sample types. Methods: Our study used Cryogenic Electron Microscopy (Cryo-EM) to examine exosome size and morphology. Results: Our results revealed significant diversity in extracellular vesicle morphology independent of the isolation method, suggesting that morphological subpopulations of these vesicles exist. Based on their shape, our analysis classified exosomes into seven categories. In addition, we developed a semi-automatic image analysis framework to accurately characterize exosome attributes and distribution to facilitate reliable quantification of specific bio-nanoparticle features in Cryo-EM micrographs. Conclusions: Morphological features of exosomes inform their biophysical properties, which influence both biodistribution and biological activity in vivo. Our data demonstrating the innate morphological diversity of exosomes may have implications for improving the specificity and precision of exosome-delivered therapeutics. Conflict of interest: R.K. and MD Anderson Cancer Center hold patents in exosome biology and are stock equity holders in Codiak Biosciences Inc. R.K. is a consultant and a scientific advisor of Codiak Biosciences Inc.
Wrestling the Fourth Arm of Democracy: How the Orban Regime Undermined Media Independence in Hungary
Creators: name: Altena, Hailey
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: This thesis explores how political actors in East-Central Europe undermine media independence. Framed by opportunity structure theory, it suggests that given relevant opportunities, political actors restrict media independence by utilizing three specific strategies: legislative action, financial manipulation, and political pressure. While political actors may have agency to employ one or two strategies against independent media, without opportunity to utilize all three strategies in tandem, political actors cannot effectively undermine media independence. To explore this argument, this thesis examines the Orban regime in Hungary as a lens through which to observe each strategy in action. Orban’s regime represents the most extreme case of media freedom violations in East-Central Europe —violations, which are made possible by political, financial, and legislative opportunities in Hungary. It suggests that the ruling party and Prime Minister, Viktor Orban, have been more effective than other political actors in the region because they have utilized all three tools simultaneously to repress independent media.
Instabilities of microstate geometries with antibranes
Creators: name: Bena, Iosif
name: Pasini, Giulio
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One can obtain very large classes of horizonless microstate geometries corresponding to near-extremal black holes by placing probe supertubes whose action has metastable minima inside certain supersymmetric bubbling solutions. We show that these minima can lower their energy when the bubbles move in certain directions in the moduli space, which implies that these near-extremal microstates are in fact unstable once one considers the dynamics of all their degrees of freedom. The decay of these solutions corresponds to Hawking radiation, and we compare the emission rate and frequency to those of the corresponding black hole. Our analysis supports the expectation that generic non-extremal black holes microstate geometries should be unstable. It also establishes the existence of a new type of instabilities for antibranes in highly-warped regions with charge dissolved in fluxes.
description: 24 pages, 4 figures
Food groups and body weight: a protocol for a systematic review and network meta-analysis of randomized trials
Creators: name: Jayedi, Ahmad
name: Ge, Long
name: Johnston, Bradley
name: Abyadeh, Morteza
name: Safabakhsh, Maryam
name: Mohammadpour, Saba
name: Shahinfar, Hossein
name: Ghorbaninejad, Parivash
name: Shab-bidar, Sakineh
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: The aim of our systematic review and network meta-analysis will be to assess the effects of major food groups on weight loss across randomized clinical trials (RCTs).
Justification of the Nonlinear Schrödinger approximation for a quasilinear Klein-Gordon equation
Creators: name: Düll, Wolf-Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider a nonlinear Klein-Gordon equation with a quasilinear quadratic term. The Nonlinear Schrödinger (NLS) equation can be derived as a formal approximation equation describing the evolution of the envelopes of slowly modulated spatially and temporarily oscillating wave packet-like solutions to the quasilinear Klein-Gordon equation. It is the purpose of this paper to present a method which allows one to prove error estimates in Sobolev norms between exact solutions of the quasilinear Klein-Gordon equation and the formal approximation obtained via the NLS equation. The paper contains the first validity proof of the NLS approximation of a nonlinear hyperbolic equation with a quasilinear quadratic term by error estimates in Sobolev spaces. We expect that the method developed in the present paper will allow an answer to the relevant question of the validity of the NLS approximation for other quasilinear hyperbolic systems.
description: This paper is a minor revision of the previous submission arXiv:1602.08016v1 with a slightly changed title. In its present form, the paper has been accepted for publication in Communications in Mathematical Physics
MPEC 2023-F137 : 2023 FW3
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 FW3

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.
The physical properties of z>2 Lyman limit systems: new constraints for feedback and accretion models
Creators: name: Fumagalli, Michele
name: O'Meara, John M.
name: Prochaska, J. Xavier
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 study the physical properties of a homogeneous sample of 157 optically-thick absorption line systems at redshifts ~1.8-4.4, selected from a high-dispersion spectroscopic survey of Lyman limit systems (LLSs). By means of multiple ionisation models and Bayesian techniques, we derive the posterior probability distribution functions for the density, metallicity, temperature, and dust content of the absorbing gas. We find that z>2 LLSs are highly ionised with ionisation parameters between -32 are characterised by a broad unimodal distribution over >4 orders of magnitude, with a peak at log Z/Zsun~-2. LLSs are metal poor, significantly less enriched than DLAs, with ~70% of the metallicity PDF below log Z/Zsun19 rapidly evolves with redshift, with a ten-fold increase between z~2.1-3.6 (~1.5 Gyr). Based on this sample, we find that LLSs at z=2.5-3.5 account for ~15% of all the metals produced by UV-selected galaxies. The implications for theories of cold gas accretion and metal ejection from galaxies are also discussed.
description: 23 pages, 21 figures. MNRAS in press
Polarimetric microlensing of circumstellar disks
Creators: name: Sajadian, Sedighe
name: Rahvar, Sohrab
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the benefits of polarimetry observations of microlensing events to detect and characterize circumstellar disks around the microlensed stars located at the Galactic bulge. These disks which are unresolvable from their host stars make a net polarization effect due to their projected elliptical shapes. Gravitational microlensing can magnify these signals and make them be resolved. The main aim of this work is to determine what extra information about these disks can be extracted from polarimetry observations of microlensing events in addition to those given by photometry ones. Hot disks which are closer to their host stars are more likely to be detected by microlensing, owing to more contributions in the total flux. By considering this kind of disks, we show that although the polarimetric efficiency for detecting disks is similar to the photometric observation, but polarimetry observations can help to constraint the disk geometrical parameters e.g. the disk inner radius and the lens trajectory with respect to the disk semimajor axis. On the other hand, the time scale of polarimetric curves of these microlensing events generally increases while their photometric time scale does not change. By performing a Monte Carlo simulation, we show that almost 4 optically-thin disks around the Galactic bulge sources are detected (or even characterized) through photometry (or polarimetry) observations of high-magnification microlensing events during 10 years monitoring of 150 million objects.
description: 11 pages, 10 figures, accepted for publication in MNRAS
Improved $L^2$ estimate for gradient schemes, and super-convergence of the TPFA finite volume scheme
Creators: name: Droniou, Jerome
name: Nataraj, Neela
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65N08, 65N12, 65N15

description: The gradient discretisation method is a generic framework that is applicable to a number of schemes for diffusion equations, and provides in particular generic error estimates in $L^2$ and $H^1$-like norms. In this paper, we establish an improved $L^2$ error estimate for gradient schemes. This estimate is applied to a family of gradient schemes, namely, the Hybrid Mimetic Mixed (HMM) schemes, and yields an $\mathcal O(h^2)$ super-convergence rate in $L^2$ norm, provided local compensations occur between the cell points used to define the scheme and the centers of mass of the cells. To establish this result, a modified HMM method is designed by just changing the quadrature of the source term; this modified HMM enjoys a super-convergence result even on meshes without local compensations. Finally, the link between HMM and Two-Point Flux Approximation (TPFA) finite volume schemes is exploited to partially answer a long-standing conjecture on the super-convergence of TPFA schemes.
The Art of Bridge Design
Creators: name: Smits, Joris
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2019

description: It is hard to imagine a world without bridges. Bridges lie at the heart of our civilization bringing growth and prosperity to our society. It is by virtue of bridges that communities are able to physically connect to new people and to new places that were previously disconnected. However, bridges are more than mere functional assets. A well-designed bridge reflects mankind’s creativity and ingenuity. The way that our bridges are commissioned, designed and procured is rapidly changing. Nowadays, a large number of experts from many different disciplines work on the design during different phases of the project. The segregation of knowledge into discipline-specific fields, and the fragmented approach to bridge procurement, have resulted in a general lack of cohesion in bridge design. The objective of this research is to identify a design approach, through all scales of the design, that leads to bridges that are well-integrated, that are integrally-designed and that are valued by society. The methodology of this research is the reviewing of numerous projects from my own bridge design practice. By identifying design considerations on four levels, namely the level of the landscape, on the level of the bridge, on the level of the detail and on the level of the material, this research demonstrates how an overall approach to well-integrated, integrally designed and valued bridges can be achieved by addressing each of these scales of the design. If the mutations in the field of bridge design that have occurred over the past 150 years have taught us one thing, it is that the field of bridge design has become far too complex to be embodied by one person, whether it be an engineer or an architect. The role that the master builder played up until the late renaissance, bringing together aesthetic design and building craft into one person, is nowadays fulfilled by a team of specialists. You could say that the integrated design team is the contemporary version of the renaissance master builder. The basis of the ideal team naturally consists of a lead architect and a chief engineer. Within this team, the architect should be the design integrator; he or she has the task of securing the equilibrium between Beauty, Utility and Solidity throughout every phase of the design process. This balancing act takes place at all scale levels and through all phases of the design.
description: A+BE | Architecture and the Built Environment, No. 3 (2019): The Art of Bridge Design
Introduction
Creators: name: Smits, Joris
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2019

description: This chapter provides an introduction to the research. The research topic and the research aspects are briefly introduced. The changing role of the architect in the field of bridge design is analysed in an historical context. The role of the commissioning authorities is introduced. The problem of segregation of knowledge is introduced. The objectives and research questions are stated, a hypothesis is formulated and the methodology is discussed. Furthermore, an outline of the dissertation is provided.
description: A+BE | Architecture and the Built Environment, No. 3 (2019): The Art of Bridge Design
Non-linearity and environmental dependence of the star forming galaxies Main Sequence
Creators: name: Erfanianfar, G.
name: Popesso, P.
name: Finoguenov, A.
name: Wilman, D.
name: Wuyts, S.
name: Biviano, A.
name: Salvato, M.
name: Mirkazemi, M.
name: Morselli, L.
name: Ziparo, F.
name: Nandra, K.
name: Lutz, D.
name: Elbaz, D.
name: Dickinson, M.
name: Tanaka, M.
name: Altieri, M. B.
name: Aussel, H.
name: Bauer, F.
name: Berta, S.
name: Bielby, R. M.
name: Brandt, N.
name: Cappelluti, N.
name: Cimatti, A.
name: Cooper, M. C.
name: Fadda, D.
name: Ilbert, O.
name: Floch, E. Le
name: Magnelli, B.
name: Mulchaey, J. S.
name: Nordon, R.
name: Newman, J. A.
name: Poglitsch, A.
name: Pozzi, F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Using data from four deep fields (COSMOS, AEGIS, ECDFS, and CDFN), we study the correlation between the position of galaxies in the star formation rate (SFR) versus stellar mass plane and local environment at $z<1.1$. To accurately estimate the galaxy SFR, we use the deepest available Spitzer/MIPS 24 and Herschel/PACS datasets. We distinguish group environments ( $M_{halo}\sim$10$^{12.5-14.2}$$M_{\odot}$) based on the available deep X-ray data and lower halo mass environments based on the local galaxy density. We confirm that the Main Sequence (MS) of star forming galaxies is not a linear relation and there is a flattening towards higher stellar masses ( $M_*>10^{10.4-10.6}$ $M_{\odot}$), across all environments. At high redshift ( $0.5
description: 14 pages, 14 figures, accepted for publication in MNRAS
A bridge with a view, a view with a bridge
Creators: name: Smits, Joris
name: Van Der Hoeven, Frank
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2019

description: This paper discusses design considerations for creating high quality civil works with an emphasis on bridges. The authors pursue a design study and analysis approach to highlight the specifics of infrastructure design for regional identity, based on their own work on a series of bridges in the Dutch Zaanstreek region. Subsequently two highlights of the authors work, the award winning Juliana Bridge and the wildlife crossing in Rijssen, are used to illustrate how to create good infrastructure design in sensitive contexts, without making use of a neo-vernacular vocabulary.
description: A+BE | Architecture and the Built Environment, No. 3 (2019): The Art of Bridge Design
Shaping Forces
Creators: name: Smits, Joris
name: Eigenraam, Peter
name: Gkaidatzis, Rafail
name: Visser, Dirk Rinze
name: Wong, Kailin
name: Wassermann-Fry, Stephan
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2019

description: This paper investigates the symbiotic relationship between the architectural appearance of a bridge and the structural design. The research is done by reviewing and comparing the design methodology employed by the first author in the conceptualization of two of his bridges; an early work from 1997 and a recent work from 2017. The review of the early work describes a design methodology that could be described as intuitive design, whereas the later work is the result of computational from-finding and optimization. Parallels are drawn and the historical development of the toolbox of the architect and the engineer is described. The paper analysis the way the two designs were achieved by looking from the perspective of the architect and that of the engineer. The paper concludes by identifying the key design considerations to achieve a beautiful yet structurally sound bridge. The question whether beauty can be the sole result of a rational design process towards the most efficient form according to the laws of mechanics, is addressed. This paper demonstrate the belief that when it comes to the design of a bridge, architecture and structure, form and force, are involved in an interdependable and symbiotic relationship.
description: A+BE | Architecture and the Built Environment, No. 3 (2019): The Art of Bridge Design
Fiber-Reinforced Polymer Bridge Design in the Netherlands
Creators: name: Smits, Joris
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2019

description: This paper reviews the use of fiber-reinforced polymers (FRPs) in architectural and structural bridge design in the Netherlands. The challenges and opportunities of this relatively new material, both for the architect and the engineer, are discussed. An inventory of recent structural solutions in FRP is included, followed by a discussion on architectural FRP applications derived from the architectural practice of the author and of other pioneers.
description: A+BE | Architecture and the Built Environment, No. 3 (2019): The Art of Bridge Design
Quantum criticality in AFe2As2 with A = K, Rb, and Cs suppresses superconductivity
Creators: name: Eilers, Felix
name: Grube, Kai
name: Zocco, Diego A.
name: Wolf, Thomas
name: Merz, Michael
name: Schweiss, Peter
name: Heid, Rolf
name: Eder, Robert
name: Yu, Rong
name: Zhu, Jian-Xin
name: Si, Qimiao
name: Shibauchi, Takasada
name: Löhneysen, Hilbert v.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Superconductors close to quantum phase transitions often exhibit a simultaneous increase of electronic correlations and superconducting transition temperatures. Typical examples are given by the recently discovered iron-based superconductors. We investigated the band-specific quasiparticle masses of AFe2As2 single crystals with A = K, Rb, and Cs and determined their pressure dependence. The evolution of electronic correlations could be tracked as a function of volume and hole doping. The results indicate that with increasing alkali-metal ion radius a quantum critical point is approached. The critical fluctuations responsible for the enhancement of the quasiparticle masses appear to suppress the superconductivity.
description: main text: 5 pages, 4 figures; supplemental material: 6 pages, 6 figures, 3 tables
Création et procréation : métaphores chez Hélène Cixous et Nancy Huston
Creators: name: Voyer-Léger, Catherine
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Métaphore
Cixous
Huston
Féminisme

description: Cette thèse de maîtrise s’intéresse à une métaphore commune qui trouve ses racines dans la pensée grecque de Platon et qui se déploie sous diverses formes jusqu’à nos jours : la création artistique comme procréation. Nous proposons la lecture de deux essais écrits par des écrivaines de la deuxième moitié du XXe siècle, « La venue à l’écriture » de Hélène Cixous (1977) et Journal de la création de Nancy Huston (1990). Au croisement de la réflexion sur la métaphore d’usage et des débats sur l’essence féminine dans la création littéraire, nous nous interrogeons sur le rôle que joue cette métaphore dans une prise de parole souhaitant revaloriser l’écriture des femmes. Cette thèse montre que si la métaphore d’usage peut être revivifiée par des choix formels, le recours répété à une image biologique de la création tend tout de même à conforter la thèse féministe différentialiste selon laquelle la création féminine serait différente par essence de la création masculine.
Single, Stay-at-Home, and Gay Fathers’ Perspectives of their Children’s Outdoor Risky Play
Creators: name: Bauer, Michelle
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: Child Injury Prevention

description: Parental perspectives on risk and danger are important to consider in children’s injury prevention research, as they influence children’s adoption of safety strategies and influence how children approach risk and danger (Brussoni & Olsen, 2011). Despite single, stay-at-home, and gay fathers’ increasing numbers and the important roles they play in their children’s development, there has been a lack of research on their perspectives on children’s engagement in outdoor risky play until now. This thesis is written in the publishable paper format and is comprised of two papers, which were informed by poststructural feminist theory. In the first paper, I used semi-structured and photo-elicitation interviews and critical discourse analysis to explore single, stay-at-home, and gay fathers’ perspectives of their 4-12 year old children’s engagement in outdoor risky play and how they relate to tension-filled discourses of “good” fathering. In the second paper, I also used semi-structured and photo-elicitation interviews, but I explored single, stay-at-home, and gay fathers’ perspectives of masculinity and its influence on their understanding of their children’s outdoor risky play. Taken together, the findings from both papers showcase the important roles that single, stay-at-home, and gay fathers play in their children’s outdoor risky play.