cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Identifying the Role of Non-Cardiac Myofibril Isoforms in the Development of Cardiomyopathies
Creators: name: Robbe, Zachary
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Cardiomyopathies are rare but serious disorders that affect the heart muscle and require lifetime treatment in patients surviving to adulthood. Mutations in cardiac sarcomere components lead to the development of symptomatic cardiomyopathies such as cardiac hypertrophy; however, it has not yet been assessed whether the misexpression of non-cardiac sarcomere paralogs in the developing heart may also contribute to the development of early onset cardiomyopathies. Ablation of Chd4, the catalytic subunit of the transcriptional repressive Nucleosome Remodeling and Deacetylase (NuRD) complex, leads to the misexpression of fast skeletal and smooth muscle isoforms of sarcomeric proteins in the developing murine heart. Utilizing this model of non-cardiac myofibril paralog misexpression, it is possible to assess whether the misexpression of these non-cardiac isoforms leads to impaired cardiac muscle function. Through fluorescent labeling of fast skeletal troponin I2 (fsTnI2), α-actinin, and smooth muscle myosin heavy chain (SMMHC), we found that misexpression of non-cardiac sarcomeric paralogs disrupts cardiac sarcomere formation, contributing to impaired heart function and embryonic lethality early in gestation. Wild-type sarcomeres normally exclude non-cardiac isoforms during formation, but following loss of CHD4-mediated transcriptional repression, developing sarcomeres incorporate misexpressed SMMHC and exhibit disorganized structure. Our results suggest that the incorporation of non-cardiac myofibril isoforms in developing cardiac sarcomeres contributes to sarcomere malformation and the development of cardiomyopathies. Identifying these functional requirements of CHD4 in proper heart development will lead to further advancements in the understanding and future treatment strategies for patients with mutations that disrupt this process.
Yann Frémy (1972-2021)
Creators: name: Whidden, Seth
Publisher: name: Classiques Garnier
Year: 2023
Subjects: subject: Énergie
subject: Poésie
subject: Modernité
subject: Littérature
subject: Philosophie
subject: Hommage
subject: Amitié

description: Yann Frémy a illuminé la vie et la pensée de ses amis. Le présent avant-propos célèbre sa contribution à la connaissance de l’œuvre de Rimbaud, de Verlaine et d’autres écrivains des xixe et xxe siècles.
Transport in electron-photon systems
Creators: name: Wang, Jian-Sheng
name: Peng, Jiebin
name: Zhang, Zu-Quan
name: Zhang, Yong-Mei
name: Zhu, Tao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We review the description and modeling of transport phenomena among the electron systems coupled via scalar or vector photons. It consists of three parts. The first part is about scalar photons, i.e., Coulomb interactions. The second part is with transverse photons described by vector potentials. The third part is on $ϕ=0$ or temporal gauge, which is a full theory of the electrodynamics. We use the nonequilibrium Green's function (NEGF) formalism as a basic tool to study steady-state transport. Although with local equilibrium it is equivalent to the fluctuational electrodynamics (FE), the advantage of NEGF is that it can go beyond FE due to its generality. We have given a few examples in the review, such as transfer of heat between graphene sheets driven by potential bias, emission of light by a double quantum dot, and emission of energy, momentum, and angular momentum from a graphene nanoribbon. All of these calculations are based on a generalization of the Meir-Wingreen formula commonly used in electronic transport in mesoscopic systems, with materials properties represented by photon self-energy, coupled with the Keldysh equation and the solution to the Dyson equation.
description: 45 pages, 14 figures
Unconventional Berezinskii-Kosterlitz-Thouless Transition in the Multicomponent Polariton System
Creators: name: Dagvadorj, G.
name: Comaron, P.
name: Szymanska, M. H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a four-component polariton system in the optical parametric oscillator regime consisting of exciton/photon and signal/idler modes across the Berezinskii-Kosterlitz-Thouless (BKT) transition. We show that all four components share the same BKT critical point, and algebraic decay of spatial coherence with the same critical exponent. However, while the collective excitations in different components are strongly locked, both close to and far from criticality, the spontaneous creation of topological defects in the vicinity of the phase transition is found to be largely independent of the inter-component mode locking, and instead strongly dependent on the density within a given mode. This peculiar characteristic allows us to reveal a novel state of matter, characterised by configurations of topological defects proliferating on top of a superfluid with algebraic decay of coherence, observation of which is demonstrated to be within reach of current experiments.
description: 6 pages, 5 figures, plus supplementary material
Crossing the Channel: The Challenges of French Impressionism in Great Britain
Creators: name: Cheney, Catherine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Studying the reactions and results of introducing French Impressionism into British culture reveals the influence that the city of London had on the development of the movement as it spread internationally. Before Impressionist artists had officially debuted at the Impressionist exhibitions in 1874, their works were on view in London; the artists honed their techniques, using the city as their inspiration. The iconic characteristic of emphasizing the effects of light and air in a composition are seen early on in depictions of the London fog and River Thames. The key meeting between Durand-Ruel and the Impressionist artists while in London affected the movement for its duration. The development of Impressionism as a significant movement is directly related to its initial introduction into the British art market and the attention that it gained from notable art dealers and collectors.
Applying Exclusion Likelihoods from LHC Searches to Extended Higgs Sectors
Creators: name: Bechtle, Philip
name: Heinemeyer, Sven
name: Stal, Oscar
name: Stefaniak, Tim
name: Weiglein, Georg
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: LHC searches for non-standard Higgs bosons decaying into tau lepton pairs constitute a sensitive experimental probe for physics beyond the Standard Model (BSM), such as Supersymmetry (SUSY). Recently, the limits obtained from these searches have been presented by the CMS collaboration in a nearly model-independent fashion - as a narrow resonance model - based on the full 8 TeV dataset. In addition to publishing a 95% C.L. exclusion limit, the full likelihood information for the narrow resonance model has been released. This provides valuable information that can be incorporated into global BSM fits. We present a simple algorithm that maps an arbitrary model with multiple neutral Higgs bosons onto the narrow resonance model and derives the corresponding value for the exclusion likelihood from the CMS search. This procedure has been implemented into the public computer code HiggsBounds (version 4.2.0 and higher). We validate our implementation by cross-checking against the official CMS exclusion contours in three Higgs benchmark scenarios in the Minimal Supersymmetric Standard Model (MSSM), and find very good agreement. Going beyond validation, we discuss the combined constraints of the tau tau search and the rate measurements of the SM-like Higgs at 125 GeV in a recently proposed MSSM benchmark scenario, where the lightest Higgs boson obtains SM-like couplings independently of the decoupling of the heavier Higgs states. Technical details for how to access the likelihood information within HiggsBounds are given in the appendix. The program is available at http://higgsbounds.hepforge.org.
description: 24 pages, 6 figures; The code can be downloaded from http://higgsbounds.hepforge.org
Projected d-wave superconducting state: a fermionic projected entangled pair state study
Creators: name: Yang, Qi
name: Zhang, Xing-Yu
name: Liao, Hai-Jun
name: Tu, Hong-Hao
name: Wang, Lei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the physics of projected d-wave pairing states using their fermionic projected entangled pair state (fPEPS) representation. First, we approximate a d-wave Bardeen-Cooper-Schrieffer state using the Gaussian fPEPS. Next, we translate the resulting state into fPEPS tensors and implement the Gutzwiller projection which removes double occupancy by modifying the local tensor elements. The tensor network representation of the projected d-wave pairing state allows us to evaluate physical quantities in the thermodynamic limit without employing the Gutzwiller approximation. Despite having very few variational parameters, such physically motivated tensor network states are shown to exhibit competitive energies for the doped t-J model. We expect that such construction offers useful initial states and guidance for variational tensor network calculations.
description: 9 pages, 7 figures
On degenerate sigma-functions of genus two
Creators: name: Bernatska, Julia
name: Leykin, Dmitry
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 14Hxx, 32A20, 33E05, 35C05

description: We obtain explicit expressions for genus 2 degenerate sigma-function in terms of genus $1$ sigma-function and elementary functions as solutions of a system of linear PDEs satisfied by the sigma-function. By way of application we derive a solution for a class of generalized Jacobi inversion problems on elliptic curves, a family of Schrödinger-type operators on a line with common spectrum consisting of a point and two segments, explicit construction of a field of three-periodic meromorphic functions. Generators of rank $3$ lattice in $\mathbb{C}^2$ are given explicitly.
description: 20 pages, 2 figures
Design Principles of youth development programs in outdoor environments: A scoping review
Creators: name: Mansfield, Andrew
Publisher: name: Open Science Framework
Year: 2022

description: Despite increased popular and research interest in youth development and outdoor education, very little research has focused upon the design principles that maximise the effectiveness of these programs. This scoping review will review the literature discussing youth development activities occurring in outdoor environments, in order to identify the design principles of effective activities.
Building a New Economic Silk Road: Advancing the Chinese Approach
Creators: name: Williams, James Scott
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: China’s One Belt, One Road (OBOR) initiative is a major, 21st century undertaking that reflects China’s growing economic and political power. It not only provides solutions for China’s own economic needs, like markets for its products and alleviating industrial overcapacity, but helps to draw countries along the Belt and Road further into the gravitational pull of China’s large economy. Moreover, OBOR both embodies and propagates the ideas underpinning China’s own quest to develop economically and mark out its place in the global system: the “Chinese approach” that includes prioritizing the hardware of economic development, state involvement in the economy, foreign policy based on equality, and cultivation of people-to-people exchange. This Chinese approach may just be one of the most influential “exports” along the Belt and Road, attracting developing countries that are increasingly dissatisfied with Western politico-economic prescriptions for development. As the existing world hegemon, the U.S. has a choice to make: does it embrace OBOR and come to terms with the world’s growing multipolarity or take a more adversarial approach, seeking to defend its regional and global hegemony?
Analytical Theory of Strongly Correlated Wigner Crystals in the Lowest Landau Level
Creators: name: Rhim, Jun-Won
name: Jain, Jainendra K.
name: Park, Kwon
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work, we present an analytical theory of strongly correlated Wigner crystals (WCs) in the lowest Landau level (LLL) by constructing an approximate, but accurate effective two-body interaction for composite fermions (CFs) participating in the WCs. This requires integrating out the degrees of freedom of all surrounding CFs, which we accomplish analytically by approximating their wave functions by delta functions. This method produces energies of various strongly correlated WCs that are in excellent agreement with those obtained from the Monte Carlo simulation of the full CF crystal wave functions. We compute the compressibility of the strongly correlated WCs in the LLL and predict discontinuous changes at the phase boundaries separating different crystal phases.
description: 9 pages, 6 figures
title: Yann Frémy (1972-2021)
title: Docteur ès lettres – Agrégé de lettres modernes. Curriculum vitæ
titleType: Subtitle
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2023
Subjects: subject: (Auto-)commentaire
subject: Écriture fragmentaire
subject: Entrée-en-littérature
subject: Rhétorique
subject: Stylistique

description: Dans tout critique (tout « écrivant », pour parler comme Barthes) se cache, plus ou moins bien, un « écrivain » – c’est que le distinguo repose sur une frontière éminemment poreuse. Yann Frémy a eu « la force » de le rappeler en acte, en menant une (au moins) double vie scripturale, devenant auteur bifrons, comme Janus, passant des essais sur Rimbaud, Verlaine et Cie aux fictions de Soleil froid et autres nouvelles.
Jellybean quantum dots in silicon for qubit coupling and on-chip quantum chemistry
Creators: name: Wang, Zeheng
name: Feng, MengKe
name: Serrano, Santiago
name: Gilbert, William
name: Leon, Ross C. C.
name: Tanttu, Tuomo
name: Mai, Philip
name: Liang, Dylan
name: Huang, Jonathan Y.
name: Su, Yue
name: Lim, Wee Han
name: Hudson, Fay E.
name: Escott, Christopher C.
name: Morello, Andrea
name: Yang, Chih Hwan
name: Dzurak, Andrew S.
name: Saraiva, Andre
name: Laucht, Arne
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The small size and excellent integrability of silicon metal-oxide-semiconductor (SiMOS) quantum dot spin qubits make them an attractive system for mass-manufacturable, scaled-up quantum processors. Furthermore, classical control electronics can be integrated on-chip, in-between the qubits, if an architecture with sparse arrays of qubits is chosen. In such an architecture qubits are either transported across the chip via shuttling, or coupled via mediating quantum systems over short-to-intermediate distances. This paper investigates the charge and spin characteristics of an elongated quantum dot -- a so-called jellybean quantum dot -- for the prospects of acting as a qubit-qubit coupler. Charge transport, charge sensing and magneto-spectroscopy measurements are performed on a SiMOS quantum dot device at mK temperature, and compared to Hartree-Fock multi-electron simulations. At low electron occupancies where disorder effects and strong electron-electron interaction dominate over the electrostatic confinement potential, the data reveals the formation of three coupled dots, akin to a tunable, artificial molecule. One dot is formed centrally under the gate and two are formed at the edges. At high electron occupancies, these dots merge into one large dot with well-defined spin states, verifying that jellybean dots have the potential to be used as qubit couplers in future quantum computing architectures.
Cost of counterdiabatic driving and work output
Creators: name: Zheng, Yuanjian
name: Campbell, Steve
name: De Chiara, Gabriele
name: Poletti, Dario
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Unitary processes allow for the transfer of work to and from Hamiltonian systems. However, to achieve nonzero power for the practical extraction of work, these processes must be performed within a finite time, which inevitably induces excitations in the system. We show that depending on the time scale of the process and the physical realization of the external driving employed, the use of counterdiabatic quantum driving to extract more work is not always effective. We also show that by virtue of the two-time energy measurement definition of quantum work, the cost of counterdiabatic driving can be significantly reduced by selecting a restricted form of the driving Hamiltonian that depends on the outcome of the first energy measurement. Lastly, we introduce a measure, the exigency, that quantifies the need for an external driving to preserve quantum adiabaticity which does not require knowledge of the explicit form of the counterdiabatic drivings, and can thus always be computed. We apply our analysis to systems ranging from a two-level Landau-Zener problem to many-body problems, namely, the quantum Ising and Lipkin-Meshkov-Glick models.
description: 9 pages, 4 figures
Data for: Economic and biophysical limits to seaweed farming for climate change mitigation
Creators: name: DeAngelo, Julianne
Publisher: name: Zenodo
Year: 2023
Subjects: Monte Carlo
economic model
seaweed farming
seaweed cultivation
seaweed aquaculture
Seaweed
carbon sequestration potential
Carbon sequestration
Biofuels
kelp aquaculture
kelp
kelp farming

description: Net-zero greenhouse gas emissions targets are driving interest in opportunities for biomass-based negative emissions and bioenergy, including from marine sources such as seaweed. Yet the biophysical and economic limits to farming seaweed at scales relevant to the global carbon budget have not been assessed in detail. We use coupled seaweed growth and technoeconomic models to estimate the costs of global seaweed production and related climate benefits, systematically testing the relative importance of model parameters. Under our most optimistic assumptions, sinking farmed seaweed to the deep sea to sequester a gigaton of CO2 per year costs as little as $480/tCO2 on average, while using farmed seaweed for products that avoid a gigaton of CO2-equivalent greenhouse gas (GHG) emissions annually could return a profit of $50/tCO2-eq. However, these costs depend on low farming costs, high seaweed yields, and assumptions that almost all carbon in seaweed is removed from the atmosphere (i.e., competition between phytoplankton and seaweed is negligible) and that seaweed products can displace products with substantial embodied non-CO2 GHG emissions. Moreover, the gigaton-scale climate benefits we model would require farming very large areas (>90,000 km2)—a >30-fold increase in the area currently farmed. Our results therefore suggest that seaweed-based climate benefits may be feasible, but targeted research and demonstrations are needed to further reduce economic and biophysical uncertainties.
description: Funding provided by: ClimateWorks Foundation
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100014893
Award Number: UCI-21-1763Funding provided by: U.S. Department of Energy
Crossref Funder Registry ID: http://dx.doi.org/10.13039/100000015
Award Number: DE-AR0000920
Measurement-based ground state cooling of a trapped ion oscillator
Creators: name: Lee, Chungsun
name: Webster, Simon C.
name: Toba, Jacopo Mosca
name: Corfield, Ollie
name: Porter, George
name: Thompson, Richard C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Measurement-based cooling is a method by which a quantum system, initially in a thermal state, can be prepared in its ground state through some sort of measurement. This is done by making a measurement that heralds the system being in the desired state. Here we demonstrate the application of a measurement-based cooling technique to a trapped atomic ion. The ion is pre-cooled by Doppler laser cooling to a thermal state with a mean excitation of $\bar n \approx 18$ and the measurement-based cooling technique selects those occasions when the ion happens to be in the motional ground state. The fidelity of the heralding process is greater than 95%. This technique can be applied to other systems that are not as amenable to laser cooling as trapped ions.
description: 6 pages, 5 figures
Bulk Bogoliubov Fermi arcs in non-Hermitian superconducting systems
Creators: name: Cayao, Jorge
name: Black-Schaffer, Annica M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a non-Hermitian superconducting system by coupling a conventional superconductor to a ferromagnet lead and demonstrate the emergence of exceptional points when an external Zeeman field is applied. We discover that, depending on the non-Hermiticity and the Zeeman field, the exceptional points mark the ends of lines with zero real energy, thus giving rise to topologically protected and highly tunable bulk Fermi arcs, which we coin bulk Bogoliubov Fermi arcs due to their superconducting nature. We show that these bulk Bogoliubov Fermi arcs are the non-Hermitian counterparts of the Hermitian topological phase transition but are much more prevalent and also experimentally detectable through large spectral signatures.
description: 9 pages, 6 figures. Published version
A Measure of Monetary Policy Transparency: How Newsworthy are the Actions of the FOMC?
Creators: name: Rha, Katie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: There are two main goals of this paper. The first goal for this paper is to create a quantifiable measure for transparency that captures public interpretation of FOMC policy decisions. We focus on the extent to which the FOMC conveys itself and its policy decisions with their official statements, which are released immediately after each meeting, to the public at large. To do this, we create an index that attempts to isolate the communicative success between the FOMC  and the public in a twofold process that involves a trio of documents. First, we need to account for how the Federal Reserve’s practice of transparency has evolved over time. Namely, we need to be sensitive toward (i) the Fed's institutional changes in its release of materials and (ii) the differing lag times at which these materials were released. To do this, we first establish transparency by computing the similarity values between discourse within the transcripts and reporting in the statements (previously the Record of Policy Actions) are high. This step is necessary as it not only establishes the Fed's definition of central bank transparency, but it also acts as a proof of concept in preparation for our second step. Next, we compute the similarity between the statements and the news articles that report on the statements. If we want to provide meaning to this definition of transparency, understanding public interpretation of Fed policy is necessary. I create a transparency index series from 1984 to 2012 using a computational linguistics technique called Latent Dirichlet Allocation (LDA), and the idea is that a higher similarity number indicates that the FOMC is more transparent in their communication. My second goal is to understand if transparency affects the way monetary policy is propagated.
Quantum Quenches of an SO(5) Pseudospin Reveal Higgs Bosons
Creators: name: Xu, Qiao-Ru
name: Ortiz, Gerardo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Controlled dynamical probe measurement of complex order parameter fluctuations may reveal its massive collective excitations. Here, we design dynamical quench protocols to excite independently all ten midgap Higgs bosons in the isotropic Balian--Werthamer state of a spinfull $p$-wave superfluid or superconductor. The analysis is based on microscopic equations of motion of an SO(5) pseudospin, an extension of the usual Bloch equation to a five dimensional space. Key to these protocols is the realization of quenches that break the rotational symmetry of the kinetic energy and exploit the irreducible representation of the angular momentum $J=2$. For perturbative quenches, we find (non-decaying) periodic oscillations in time of these Higgs modes. Experiments to realize our proposal for either superfluids or superconductors are considered.
description: 6 pages, 3 figures
Mode coupling and photon antibunching in a bimodal cavity containing a dipole-quantum-emitter
Creators: name: Liu, Yu-Long
name: Wang, Guan-Zhong
name: Liu, Yu-xi
name: Nori, Franco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the effect of mode-coupling on a single-photon device in which a dipole-quantum-emitter (DQE) is embedded in a bimodal whispering-gallery-mode cavity (WGMC). A scatterer is used to induce mode coupling between counter-clockwise and clockwise propagating light fields, which interact with the DQE. In contrast to models for the interaction between a DQE and a (one-mode or two-mode) cavity field, we find that strong photon antibunching can occur even for a weak DQE-field coupling and large dephasing of the DQE, when mode coupling is introduced. We also find that mode coupling can make the device robust against either the frequency mismatch between cavity modes and the DQE or the coupling strength mismatch between the DQE and each mode in the two-mode cavity. Moreover, we find that these mismatches can be used to generate better antibunching in the weak DQE-field coupling regime. Our study shows that mode coupling in a bimodal cavity is very important for the realization of a good single-photon device.
description: 12pages,11figures
Characterizing Behavioral Phenotypes of Fragile X Syndrome In Mice
Creators: name: Rauffenbart, Caroline
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Fragile X Syndrome (FXS) is the most prevalent inherited form of autism. This condition
is due to inappropriate silencing of the Fmr1 gene on the X-chromosome and subsequent loss of
Fragile X Mental Retardation Protein (FMRP), a RNA-binding protein that represses dendritic
protein translation. Clinical features of FXS include cognitive impairments, increased seizure
susceptibility, and altered social behaviors. In these studies, I used the marble burying, open-field,
acoustic startle/prepulse inhibition, social exploration and nose poke behavioral assays to
characterize phenotypic differences between male Fmr1-KO and wildtype mice that are
comparable to known FXS behavioral defects. Results indicate that Fmr1-KO mice display
increased perseverance and general hyperactivity, but are otherwise behaviorally similar to the
control subjects. These findings provide a basis for future pre-clinical mouse studies that will
attempt to correct behavioral and cellular abnormalities associated with FXS using
pharmacological interventions during different stages of development.
Handicap principle implies emergence of dimorphic mating displays
Creators: name: Clifton, Sara M.
name: Braun, Rosemary I.
name: Abrams, Daniel M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Dynamical Systems (math.DS)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Species spanning the animal kingdom have evolved extravagant and costly ornaments to attract mating partners. Zahavi's handicap principle offers an elegant explanation for this: ornaments signal individual quality, and must be costly to ensure honest signalling, making mate selection more efficient. Here we incorporate the assumptions of the handicap principle into a mathematical model and show that they are sufficient to explain the heretofore puzzling observation of bimodally distributed ornament sizes in a variety of species.
description: 7 pages, 4 figures, supplementary information included
Was gilt in unserer Kirche
Creators: name: Kandler, Karl-Hermann
Publisher: name: Lutherische Beiträge
Year: 2024

description: Geltung und Grenzen synodaler Entscheidungen. Synodale Mehrheitsbeschlüsse können keine Lehrfragen entscheiden.
description: Lutherische Beiträge, Bd. 27 Nr. 3 (2022): Lutherische Beiträge
Bridging the Gap Between Animal and Human Medicine: Implementing the One Health Initiative to Improve the Health of All Species
Creators: name: George, Tabitha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Professional segregation between animal and human medicine is common. Clinical data is not shared between human and animal health providers, and disease surveillance for humans and animals are performed and reported to separate agencies and departments. The One Health Initiative (OHI) seeks to promote and improve the health and well being of all species by improving cooperation between physicians, veterinarians, and other scientific health and environmental professionals. It is evident that the health of non-human animal species and humans are inextricably linked. Veterinary professionals have adopted the OHI with great enthusiasm, but One Health does not seem to have been accepted nearly as widely among medical and health care professionals. As a consequence, Google Scholar, PubMed, and the website of the One Health Initiative were utilized to access relevant databases that would provide the references and supportive materials for this paper, which supports the implementation of the OHI across all disciplines. Although the various professionals have different roles, they share an underlying common interest, and they often share similar challenges. Professionals within animal, human, and environmental health need to unify their efforts in managing the health of all species. This can be achieved by continual collegiate and/or self-education, keeping up to date with recent publications in other fields’ journals, educating the general public about One Health, and by setting up and attending One Health conferences at the global, national, and local levels.
Predigt ist Seelsorge
Creators: name: Kelter, Gert
Publisher: name: Lutherische Beiträge
Year: 2024

description: Die Seelsorge in der Predigt, Seelsorge als Predigttyp, die Person des Predigers


und wie macht man eine Predigt, in der Seelsorge geschieht.
description: Lutherische Beiträge, Bd. 27 Nr. 3 (2022): Lutherische Beiträge
What is the effect of education-based interventions in adult Chinese cardiac patients on disease-related knowledge, behaviours, and clinical outcomes?
Creators: name: Feng, Yu
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Diseases
subject: Medicine and Health Sciences
subject: Cardiovascular Diseases
subject: Rehabilitation and Therapy

description: This is registration of a protocol submitted to PROSPERO on March 9, 2020 before commencement of data extraction.
Luthers Judenschriften
Creators: name: Volkmar, Andreas
Publisher: name: Lutherische Beiträge
Year: 2024

description: Die Judenschriften Luthers und ihr Einfluss und ihre Wirkung auf den Antijudaismus in der lutherische Kirche und in der Gesellschaft
description: Lutherische Beiträge, Bd. 27 Nr. 3 (2022): Lutherische Beiträge
Constraining new physics in entangled two-qubit systems: top-quark, tau-lepton and photon pairs
Creators: name: Fabbrichesi, Marco
name: Floreanini, Roberto
name: Gabrielli, Emidio
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The measurement of quantum entanglement can provide a new and most sensitive probe to physics beyond the Standard Model. We use the concurrence of the top-quark pair spin states produced at colliders to constrain the magnetic dipole term in the coupling between top quark and gluons, that of $τ$-lepton pairs spin states to bound contact interactions and that of $τ$-lepton pairs or two-photons spin states from the decay of the Higgs boson in trying to distinguish between CP-even and odd couplings. These four examples show the power of the new approach as well as its limitations. We show that differences in the entanglement in the top-quark and $τ$-lepton pair production cross sections can provide constraints better than those previously estimated from total cross sections or classical correlations. Instead, the final states in the decays of the Higgs boson remain maximally entangled even in the presence of CP odd couplings and cannot be used to set bounds on new physics. We discuss the violation of Bell inequalities featured in all four processes.
description: 31 pages, 15 Figures, text and results improved, new references added, same as published version
Centrosymmetric Matrices in the Sinc Collocation Method for Sturm-Liouville Problems
Creators: name: Gaudreau, Philippe
name: Safouhi, Hassan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65L10, 65L20

description: Recently, we used the Sinc collocation method with the double exponential transformation to compute eigenvalues for singular Sturm-Liouville problems. In this work, we show that the computation complexity of the eigenvalues of such a differential eigenvalue problem can be considerably reduced when its operator commutes with the parity operator. In this case, the matrices resulting from the Sinc collocation method are centrosymmetric. Utilizing well known properties of centrosymmetric matrices, we transform the problem of solving one large eigensystem into solving two smaller eigensystems. We show that only 1/(N+1) of all components need to be computed and stored in order to obtain all eigenvalues, where (2N+1) corresponds to the dimension of the eigensystem. We applied our result to the Schrödinger equation with the anharmonic potential and the numerical results section clearly illustrates the substantial gain in efficiency and accuracy when using the proposed algorithm.
description: 11 pages, 4 figures
Exploring The Dependence Of Galaxy Properties On Group Halo Environment In The ECO Catalog
Creators: name: Baker, Ashley
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: We discuss the development of an optimized halo mass metric based on galaxy group dynamics as well as its application to understanding the dependence of galaxy properties on environment at low redshift. Methods and parameters for group finding and calculating dynamical mass are optimized on a mock catalog with similar redshift range and magnitude limit to the RESOLVE survey, a mass census of > 50,000 cubic Mpc of the nearby cosmic web (cz=4500-7000km/sec, M[r]≲-17). Optimal friends-of-friends linking lengths for dynamical mass measurements are determined to be 0.12 and 1.3 for b[⊥] and b[z], respectively. We also apply tests for characterizing the virialization state of a group
including the Anderson-Darling test and the Dressler-Schechtman test for identifying substructure. These methods are applied to a sample of galaxies in the ECO catalog, a 10x larger volume-limited survey that encloses the A-semester volume of RESOLVE. Using both halo mass and halo evolutionary state to quantify environment, we study environmental influences on galaxy properties such as color, gas content, and star formation history. We find that over 80% of field galaxies reside on the blue
sequence, while galaxies within the virial radius of groups with halo mass greater than > 10[13:5]M☉ uniformly contain the lowest fraction of blue-sequence galaxies. Above this same mass scale groups uniformly have recent histories of very little star formation. This halo mass scale may correspond to an evolutionary transition in galaxy groups after which processes such as quenching become substantially more effective or permanent.
20230112_supplementary_Yuzhen.docx from Pseudo-bistability of viscoelastic shells
Creators: name: Chen, Yuzhen
name: Liu, Tianzhen
name: Jin, Lihua
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: Viscoelastic shells subjected to a pressure loading exhibit rich and complex time-dependent responses. Here we focus on the phenomenon of pseudo-bistability, i.e. a viscoelastic shell can stay inverted when pressure is removed, and snap to its natural shape after a delay time. We model and explain the mechanism of pseudo-bistability with a viscoelastic shell model. It combines the small strain, moderate rotation shell theory with the standard linear solid as the viscoelastic constitutive law, and is applicable to shells with arbitrary axisymmetric shapes. As a case study, we investigate the pseudo-bistable behaviour of viscoelastic ellipsoidal shells. Using the proposed model, we successfully predict buckling of a viscoelastic ellipsoidal shell into its inverted configuration when subjected to an instantaneous pressure, creeping when the pressure is held, staying inverted after the pressure is removed, and eventually snapping back after a delay time. The stability transition of the shell from a monostable, temporarily bistable and eventually back to the monostable state is captured by examining the evolution of the instantaneous pressure–volume change relation at different time of the holding and releasing process. A systematic parametric study is conducted to investigate the effect of geometry, viscoelastic properties and loading history on the pseudo-bistable behaviour.This article is part of the theme issue 'Probing and dynamics of shock sensitive shells'.
A Smooth and Locally Sparse Estimator for Functional Linear Regression via Functional SCAD Penalty
Creators: name: Lin, Zhenhua
name: Cao, Jiguo
name: Wang, Liangliang
name: Wang, Haonan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In this paper, we propose a new regularization technique called "functional SCAD". We then combine this technique with the smoothing spline method to develop a smooth and locally sparse (i.e., zero on some sub-regions) estimator for the coefficient function in functional linear regression. The functional SCAD has a nice shrinkage property that enables our estimating procedure to identify the null subregions of the coefficient function without over shrinking the non-zero values of the coefficient function. Additionally, the smoothness of our estimated coefficient function is regularized by a roughness penalty rather than by controlling the number of knots. Our method is more theoretically sound and is computationally simpler than the other available methods. An asymptotic analysis shows that our estimator is consistent and can identify the null region with the probability tending to one. Furthermore, simulation studies show that our estimator has superior numerical performance. Finally, the practical merit of our method is demonstrated on two real applications.
description: 23 pages, 9 figures
On determinants of modified Bessel functions and entire solutions of double confluent Heun equations
Creators: name: Buchstaber, Victor M.
name: Glutsyuk, Alexey A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 33C10, 34M05

description: We investigate the question on existence of entire solutions of well-known linear differential equations that are linearizations of nonlinear equations modeling the Josephson effect in superconductivity. We consider the modified Bessel functions $I_j(x)$ of the first kind, which are Laurent series coefficients of the analytic function family $e^{\frac x2(z+\frac 1z)}$. For every $l\geq1$ we study the family parametrized by $k, n\in\mathbb Z^l$, $k_1>\dots>k_l$, $n_1>\dots>n_l$ of $(l\times l)$-matrix functions formed by the modified Bessel functions of the first kind $a_{ij}(x)=I_{k_j-n_i}(x)$, $i,j=1,\dots,l$. We show that their determinants $f_{k,n}(x)$ are positive for every $l\geq1$, $k,n\in\mathbb Z^l$ as above and $x>0$. The above determinants are closely related to a sequence (indexed by $l$) of families of double confluent Heun equations, which are linear second order differential equations with two irregular singularities, at zero and at infinity. V.M.Buchstaber and S.I.Tertychnyi have constructed their holomorphic solutions on $\mathbb C$ for an explicit class of parameter values and conjectured that they do not exist for other parameter values. They have reduced their conjecture to the second conjecture saying that if an appropriate second similar equation has a polynomial solution, then the first one has no entire solution. They have proved the latter statement under the additional assumption (third conjecture) that $f_{k,n}(x)\neq0$ for $k=(l,\dots,1)$, $n=(l-1,\dots,0)$ and every $x>0$. Our more general result implies all the above conjectures, together with their corollary for the overdamped model of the Josephson junction in superconductivity: the description of adjacency points of phase-lock areas as solutions of explicit analytic equations.
description: 19 pages, 1 figure. To appear in Nonlinearity. Minor changes. The present version includes additional historical remarks and bibliography
Lossy Image Compression with Quantized Hierarchical VAEs
Creators: name: Duan, Zhihao
name: Lu, Ming
name: Ma, Zhan
name: Zhu, Fengqing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Recent research has shown a strong theoretical connection between variational autoencoders (VAEs) and the rate-distortion theory. Motivated by this, we consider the problem of lossy image compression from the perspective of generative modeling. Starting with ResNet VAEs, which are originally designed for data (image) distribution modeling, we redesign their latent variable model using a quantization-aware posterior and prior, enabling easy quantization and entropy coding at test time. Along with improved neural network architecture, we present a powerful and efficient model that outperforms previous methods on natural image lossy compression. Our model compresses images in a coarse-to-fine fashion and supports parallel encoding and decoding, leading to fast execution on GPUs. Code is available at https://github.com/duanzhiihao/lossy-vae.
description: WACV 2023 Best Algorithms Paper Award, revised version
A ray of hope in the darkness: What we have learned from Yangtze giant soft-shell turtle Rafetus swinhoei (Gray, 1873) conservation?
Creators: name: Al-Asif, Abdulla-
Publisher: name: figshare
Year: 2022
Subjects: subject: 50202 Conservation and Biodiversity
subject: FOS: Biological sciences
subject: 50211 Wildlife and Habitat Management
subject: FOS: Earth and related environmental sciences

description: The Swinhoe's softshell turtle, Rafetus swinhoei (Gray, 1873),) is one of the world's largest freshwater turtles, and possibly the most endangered turtle species on the planet (Stanford et al., 2018). It has an overall length of over 100 cm and a width of up to 70 cm, and it can easily weigh up to 70–100 kg, maximum weight was recorded at 169 kg (Solimine, 2013; Trong, 2018). Despite its enormous size and unusual look, this species is incredibly secretive and only comes to the surface to breathe, preferring to remain submerged deep down. For this species, there is very little ecological information, and the remaining distribution is unclear. This could explain why it's so difficult to positively identify and confirm occurrences of this species in the wild (Trong, 2018). If we look back to the history and biogeography of this species, it can be found that the existential records were documented in the historical literature of the Chinese and Vietnamese dynasties. This species was once thought to only live along the Red River in China and Vietnam, as well as the lower Yangtze River floodplain in China, but its current population size is estimated to be just one wild individual of undetermined sex and a solitary captivity male in Suzhou Zoo, China. Although recent thorough searches in Yunnan, China, and Vietnam failed to confirm the presence of more wild specimens, some sightings were reported until around a decade ago (Stanford et al., 2018), giving hope that more individuals may yet exist in Vietnam.
Ground Truthing Greening Through GIS: A Microstudy of Soil and Water Conservation in Burkina Faso
Creators: name: Benecky, Sarah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: The Sahel region is a semi-arid climatic zone situated at the southern border of the Sahara Desert. The region is commonly associated with the process of desertification; however, beginning in the early 1980s, rainfall in the Sahel significantly increased, consequently increasing its vegetation. This process has been labeled as the “greening” of the Sahel. This phenomenon of greening has been majorly documented through broad, top-down analysis of satellite images that span the entirety of the Sahel, yet it has rarely been understood at a local level. As a response to droughts and land degradation in Burkina Faso, there have been widespread environmental initiatives among farmers to transform degraded soil by constructing low barriers of rock by way of Soil and Water Conservation (SWC) projects. I argue that a more in-depth analysis of local SWC projects is essential in explaining more about the greening of the Sahel. Through an examination of high-resolution satellite images, I argue that SWC contributes to greening within Burkina Faso. In order to investigate this relationship, I analyze high-resolution satellite images of three different villages in Burkina Faso through Geographic Information System (GIS) software to investigate the spatial relationship between SWC and tree cover.