cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lattice QCD study of doubly charmed strange baryons
Creators: name: Mathur, Nilmani
name: Padmanath, M.
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: We present the energy spectra of the low-lying doubly charmed baryons using lattice quantum chromodynamics. We precisely predict the ground state mass of the charmed-strange Ωcc(1/2+) baryon to be 3712(11)(12) MeV which could well be the next doubly charmed baryon to be discovered at the LHCb experiment at CERN. We also predict masses of other doubly charmed strange baryons with quantum numbers 3/2+, 1/2−, and 3/2−.
Detectable Optical Signatures of QED Vacuum Nonlinearities using High-Intensity Laser Fields
Creators: name: Klar, Leonhard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Up to date, quantum electrodynamics (QED) is the most precisely tested quantum field theory. Nevertheless, particularly in the high-intensity regime it predicts various phenomena that so far have not directly been accessible in all-optical experiments, such as photon-photon scattering phenomena induced by quantum vacuum fluctuations. Here, we focus on all-optical signatures of quantum vacuum effects accessible in the high-intensity regime of electromagnetic fields. We present an experimental setup giving rise to signal photons distinguishable from the background. This configuration is based on two optical pulsed petawatt lasers: one generates a narrow but high-intensity scattering center to be probed by the other one. We calculate the differential number of signal photons attainable with this field configuration analytically and compare it with the background of the driving laser beams.
description: 11 pages, 3 figures; Contribution to the proceedings of the Helmholtz International Summer School (HISS) - Dubna International Advanced School of Theoretical Physics (DIAS-TH): "Quantum Field Theory at the Limits: from Strong Fields to Heavy Quarks", July-August 2019
MOESM2 of World Health Organization (WHO) antibiotic regimen against other regimens for the treatment of leprosy: a systematic review and meta-analysis
Creators: name: Lazo-Porras, Maria
name: Prutsky, Gabriela
name: Barrionuevo, Patricia
name: Tapia, Jose
name: Ugarte-Gil, Cesar
name: Ponce, Oscar J.
name: Acuña-Villaorduña, Ana
name: Domecq, Juan
name: Cruz-Luque, Celso De La
name: Prokop, Larry
name: Málaga, Germán
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Quality assesment using the Newcastle- Ottawa scale. Quality assessment for non-RCT studies using the Newcastle-Ottawa scale.
Hydropsyche pluvialis Navas 1932
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche pluvialis

description: Hydropsyche pluvialis Navás
 Hydropsyche pluvialis Navás, 1932: 939.
 Type locality. Vietnam.
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 103
title: An Experimental Investigation into the Impact of Acute Stress on Alcohol Craving through Implicit Coping Motives
Creators: name: Glenn, Douglas J.
Publisher: name: Old Dominion University Libraries
Year: 2021

description: Drinking to cope with negative emotions is associated with many negative alcohol-related outcomes such as increased alcohol use, drinking-related problems, and alcohol use disorders. An acute stressor is one example of a stimulus leading to negative emotions that an individual may wish to avoid. Research has shown that acute stress positively relates to drinking. Specifically, previous experimental studies have shown that individuals exposed to a stressor drink more alcohol and have stronger urges to drink than those not exposed to a stressor. Thus, it may be that drinking to cope explains why people experience alcohol cravings after experiencing a stressor. Additionally, because it has been suggested that attitudes and behaviors sometimes occur implicitly, it is possible that implicit drinking to cope explains the association between stress and drinking urges beyond explicit, self-reported drinking to cope. To address this research question, the current study sought to: 1) test the impact of an acute stressor on alcohol craving, 2) investigate implicit drinking to cope as a mediator of the association between acute stress and alcohol craving, and 3) examine positive alcohol expectancies and adaptive coping as moderators of the indirect effect from acute stress to implicit coping motives to alcohol craving. Participants were 21 (52.4% female) college student drinkers. Using a between-subjects experimental design, participants were randomly assigned to an experimental (i.e., acute stress) condition or control (i.e., neutral) condition and completed baseline measures of alcohol-related attitudes and psychological functioning as well as post-manipulation measures of implicit drinking to cope and alcohol craving. Results indicated that acute stress did not induce increased drinking urges in the experimental group. Additionally, implicit coping motives did not mediate the stress-craving association, regardless of level of adaptive coping or positive expectancies. However, a lack of power makes these findings tenuous. Efforts to replicate the current results should do so with a much larger sample size. Additionally, future research should examine the present models in heavier-drinking samples and include indicators of alcohol use other than alcohol craving.
Path Integral Solution of Linear Second Order Partial Differential Equations I. The General Construction
Creators: name: LaChapelle, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A path integral is presented that solves a general class of linear second order partial differential equations with Dirichlet/Neumann boundary conditions. Elementary kernels are constructed for both Dirichlet and Neumann boundary conditions. The general solution can be specialized to solve elliptic, parabolic, and hyperbolic partial differential equations with boundary conditions. This extends the well-known path integral solution of the Schrödinger/diffusion equation in unbounded space. The construction is based on a framework for functional integration introduced by Cartier/DeWitt-Morette.
description: 40 pages
MOESM1 of World Health Organization (WHO) antibiotic regimen against other regimens for the treatment of leprosy: a systematic review and meta-analysis
Creators: name: Lazo-Porras, Maria
name: Prutsky, Gabriela
name: Barrionuevo, Patricia
name: Tapia, Jose
name: Ugarte-Gil, Cesar
name: Ponce, Oscar J.
name: Acuña-Villaorduña, Ana
name: Domecq, Juan
name: Cruz-Luque, Celso De La
name: Prokop, Larry
name: Málaga, Germán
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Search strategy. Search strategies for the different databases.
Effective 4D propagation of a charged scalar particle in Visser brane world
Creators: name: Guzman, R.
name: Morales-Tecotl, H. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work we extend an analysis due to Visser of the effective propagation of a neutral scalar particle on a brane world scenario which is a particular solution of the five dimensional Einstein-Maxwell equations with cosmological constant having an electric field pointing in the extra spatial dimension. We determine the dispersion relations of a charged scalar particle to first order in a perturbative analysis around those of the neutral particle. Since depending on whether the particle is charged or not the dispersion relations change, we could collect bulk information, namely the presence of the electric field, by studying the 4D dynamics of the particles.
description: 12 pages, 5 figures
Scouring meson decays for true muonium
Creators: name: Ji, Yao
name: Lamm, Henry
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: Rare meson decay experiments promise to measure branching ratios as small as 10−13. This presents an opportunity to discover the μ+μ− bound state true muonium. We consider a set of possible channels, all with branching ratios above ∼10−11. For the electromagnetic decays η/η′→(μ+μ−)γ, theoretical and phenomenological form factors Fη/η′γγ∗(Q2) allow predictions of BR(η′→(μ+μ−)γ)∼4.8×10−10 and BR(η′→(μ+μ−)γ)∼3.7×10−11 at the 5% level. Discussion of experimental prospects and potential backgrounds are made.
Fine-grained evaluation of Quality Estimation for Machine translation based on a linguistically-motivated Test Suite
Creators: name: Eleftherios, Avramidis
name: Macketanz, Vivien
name: Lommel, Arle
name: Uszkoreit, Hans
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We present an alternative method of evaluating Quality Estimation systems, which is based on a linguistically-motivated Test Suite. We create a test-set consisting of 14 linguistic error categories and we gather for each of them a set of samples with both correct and erroneous translations. Then, we measure the performance of 5 Quality Estimation systems by checking their ability to distinguish between the correct and the erroneous translations. The detailed results are much more informative about the ability of each system. The fact that different Quality Estimation systems perform differently at various phenomena confirms the usefulness of the Test Suite.
Hydropsyche claviformis Mey
Creators: name: Oláh, J.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydropsychidae
Hydropsyche
Hydropsyche claviformis

description: Hydropsyche claviformis Mey
 Hydropsyche claviformis Mey, 1996a: 148.
 Type locality. India (Sikkim).
 New records: INDIA: Sikkim, Gangtok, 6000 ft, 17.v.1928 [F.M. Bailey] - 1 male (Brit. Mus. 1928-291); ditto, except 20.v.1928, light - 1 male (Br. Mus. 1928-409); Sikkim, Kalimpong Lingren [T. B. Fletcher] - 1 male (Brit. Mus. 1936-643); Assam, Kameng, Kalagtang, 9–10.x.1961 [F. Schmid] - 2 male (ROM, pinned with cleared abdomen in plastic genital vial).
description: Published as part of Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), pp. 1-248 in Zootaxa 1802 on page 104
Hidden Degeneracy in the Brick Wall Model of Black Holes
Creators: name: Gupta, Kumar S.
name: Sen, Siddhartha
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Quantum field theory in the near-horizon region of a black hole predicts the existence of an infinite number of degenerate modes. Such a degeneracy is regulated in the brick wall model by the introduction of a short distance cutoff. In this Letter we show that states of the brick wall model with non zero energy admit a further degeneracy for any given finite value of the cutoff. The black hole entropy is calculated within the brick wall model taking this degeneracy into account. Modes with complex frequencies however do not exhibit such a degeneracy.
description: 8 pages, Latex file
Topological invariants and the definition of energy in quadratic gravity theory
Creators: name: Giribet, Gaston
name: Miskovic, Olivera
name: Olea, Rodrigo
name: Rivera-Betancour, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide a simple method to compute the energy in higher curvature gravity in asymptotically AdS spacetimes in even dimensions. It follows from the combined use of topological terms added to the gravity action, and the Wald charges derived from the augmented action functional. No additional boundary terms are needed. As a consistency check, we show that the formula for the conserved quantities derived in this way yields the correct result for the mass of asymptotically AdS black holes.
description: 11 pages, no figures; references added and few clarifying comments; version accepted for publication in PRD
Quantum chaos, thermalization, and entanglement generation in real-time simulations of the Banks-Fischler-Shenker-Susskind matrix model
Creators: name: Buividovich, P. V.
name: Hanada, M.
name: Schäfer, A.
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: We study numerically the onset of chaos and thermalization in the Banks-Fischler-Shenker-Susskind (BFSS) matrix model with and without fermions, considering Lyapunov exponents, entanglement generation, and quasinormal ringing. We approximate the real-time dynamics in terms of the most general Gaussian density matrices with parameters which obey self-consistent equations of motion, thus extending the applicability of real-time simulations beyond the classical limit. Initial values of these Gaussian density matrices are optimized to be as close as possible to the thermal equilibrium state of the system. Thus attempting to bridge between the low-energy regime with a calculable holographic description and the classical regime at high energies, we find that quantum corrections to classical dynamics tend to decrease the Lyapunov exponents, which is essential for consistency with the Maldacena-Shenker-Stanford bound at low temperatures. The entanglement entropy is found to exhibit an expected “scrambling” behavior—rapid initial growth followed by saturation. At least at high temperatures the entanglement saturation time appears to be governed by classical Lyapunov exponents. Decay of quasinormal modes is found to be characterized by the shortest timescale of all. We also find that while the bosonic matrix model becomes nonchaotic in the low-temperature regime, for the full BFSS model with fermions the leading Lyapunov exponent, entanglement saturation time, and decay rate of quasinormal modes all remain finite and nonzero down to the lowest temperatures.
Additional file 1 of Preliminary verification of the anti-hypoxia mechanism of Gentiana straminea maxim based on UPLC-triple TOF MS/MS and network pharmacology
Creators: name: Kong, Xiu mei
name: Song, Dan
name: Li, Jie
name: Jiang, Yi
name: Zhang, Xiao ying
name: Wu, Xiao Jun
name: Ge, Ming juan
name: Xu, Jiao jiao
name: Gao, Xiao min
name: Zhao, Qin
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1.
Translocation to a fragmented landscape: survival, movement, and site fidelity of Northern Bobwhites
Creators: name: Terhune, Theron M.
name: Sisson, D. Clay
name: Palmer, William E.
name: Faircloth
name: Stribling, H. Lee
name: Carroll, John P.
Publisher: name: Ecological Society of America
Year: 2021
Subjects: Colinus virginianus; habitat fragmentation; habitat quality; movement; multi-strata models; Northern Bobwhite; patch size; relocation; site fidelity; survival; translocation.

description: Habitat fragmentation, degradation, and loss have taxed early-successional species including the Northern Bobwhite (Colinus virginianus) and numerous grassland obligate birds. Translocation is often applied to counteract the consequences of habitat fragmentation through the creation, reestablishment, or augmentation of wild populations for the purposes of conservation, biodiversity maintenance. However, the implementation of these techniques is often conducted without valid experimental designs and therefore lacks robust, empirical data needed to evaluate and advance the knowledge and application of translocation. Despite the increasing amount of habitat management applied to patches among fragmented landscapes, a paucity of source populations often limits natural (re)colonization. As such, translocation may serve as a surrogate to natural dispersal, but its efficacy among fragmented landscapes is uncertain. Few studies exist that have assessed site fidelity, movement, and survival of individuals following translocation among fragmented landscapes. Thus, we experimentally evaluated the efficacy of translocation using known-fate and multi-strata models to evaluate hypotheses of temporal, biological, and group effects on survival and movement of translocated and resident bobwhites. We did not detect differences in survival or movement between translocated and resident bobwhites, suggesting that movement of individuals to a fragmented habitat does not negatively influence these demographic attributes. Based on these data, we suggest that two site-specific criteria should be met prior to instituting translocation: habitat management should be conducted to ensure that quality habitat exists and the patch size should be a minimum of 600 ha of quality habitat (poorer sites may warrant even larger patches). Translocation is a viable conservation method for increasing abundance in patches when habitat quality is high but source populations are limited.
Study of doubly heavy tetraquarks in lattice QCD
Creators: name: Junnarkar, Parikshit
name: Mathur, Nilmani
name: Padmanath, M.
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: We present the results of a lattice calculation of tetraquark states with quark contents q1q2¯Q¯Q,q1,q2⊂u,d,s,c and Q≡b, c in both spin-0 (J=0) and spin-1 (J=1) sectors. This calculation is performed on three dynamical Nf=2+1+1 highly improved staggered quark ensembles at lattice spacings of about 0.12, 0.09, and 0.06 fm. We use the overlap action for light to charm quarks, while a nonrelativistic action with nonperturbatively improved coefficients with terms up to O(αsv4) is employed for the bottom quark. While considering charm or bottom quarks as heavy, we calculate the energy levels of various four-quark configurations with light quark masses ranging from the physical strange quark mass to that of the corresponding physical pion mass. This enables us to explore the quark mass dependence of the extracted four-quark energy levels over a wide range of quark masses. The results of the spin-1 states show the presence of ground state energy levels which are below their respective thresholds for all the light flavor combinations. Further, we identify a trend that the energy splittings, defined as the energy difference between the ground state energy levels and their respective thresholds, increase with decreasing the light quark masses and are maximum at the physical point for all the spin-1 states. The rate of increase is, however, dependent on the light quark configuration of the particular spin-1 state. We also present a study of hadron mass relations involving tetraquarks, baryons, and mesons arising in the limit of infinitely heavy quarks and find that these relations are more compatible with the heavy quark limit in the bottom sector but deviate substantially in the charm sector. The ground state spectra of the spin-0 tetraquark states with various flavor combinations are seen to lie above their respective thresholds.
An Algebraic Characterisation for Finsler Metrics of Constant Flag Curvature
Creators: name: Bucataru, Ioan
name: Fodor, Dan Gregorian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C60, 53B40, 58B20

description: In this paper we prove that a Finsler metrics has constant flag curvature if and only if the curvature of the induced nonlinear connection satisfies an algebraic identity with respect to some arbitrary second rank tensors. Such algebraic identity appears as an obstruction to the formal integrability of some operators in Finsler geometry, [4,7]. This algebraic characterisation for Finsler metrics of constant flag curvature allows to provide yet another proof for the Finslerian version of Beltrami's Theorem, [2,3].
MOESM1 of Differential basal expression of immune genes confers Crassostrea gigas resistance to Pacific oyster mortality syndrome
Creators: name: Lorgeril, Julien
name: Petton, Bruno
name: Lucasson, Aude
name: Perez, Valérie
name: Pierre-Louis Stenger
name: Dégremont, Lionel
name: Montagnani, Caroline
name: Jean-Michel Escoubas
name: Haffner, Philippe
name: Jean-François Allienne
name: Leroy, Marc
name: Lagarde, Franck
name: Vidal-Dupiol, Jérémie
name: Gueguen, Yannick
name: Mitta, Guillaume
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology
subject: 60506 Virology

description: Additional file 1. OsHV-1 and total vibrio colonization in oysters during the two mesocosm experiments. OsHV-1 and total vibrio quantifications in mesocosm experiments from infectious environments of Atlantic or Mediterranean origins at the beginning of the experiments (T0 h) and before the first mortalities (T72 h) in susceptible (S: SF11, SF14, SF15) and resistant (R: RF21, RF23, RF48) oyster families. (A) The OsHV-1 load was quantified by qPCR and expressed as viral genomic units per ng of oyster DNA. (B) The total 16S vibrio load was quantified by qPCR and expressed as 16S copy number per ng of oyster DNA. Dots represent distinct pools of 10 oysters and bars represent the mean ± SD.
Phase Structure of Black Holes and Strings on Cylinders
Creators: name: Harmark, T.
name: Obers, N. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the (M,n) phase diagram recently introduced in hep-th/0309116 to investigate the phase structure of black holes and strings on cylinders. We first prove that any static neutral black object on a cylinder can be put into an ansatz for the metric originally proposed in hep-th/0204047, generalizing a result of Wiseman. Using the ansatz, we then show that all branches of solutions obey the first law of thermodynamics and that any solution has an infinite number of copies. The consequences of these two results are analyzed. Based on the new insights and the known branches of solutions, we finally present an extensive discussion of the possible scenarios for the Gregory-Laflamme instability and the black hole/string transition.
description: 26 pages, 10 figures, v2: refs. added, minor corrections and additions
Fishes of the Streams of Acadia National Park, Maine
Creators: name: Havird, Justin C.
name: Parker, Jennifer K.
name: Connery, Bruce
Publisher: name: Eagle Hill Institute
Year: 2021

description: Acadia National Park (ANP) is a non-continuous conglomerate of park lands interspersed with private lands, which is located mainly on Mount Desert Island, ME. Surveys of fishes in ANP have largely ignored or under-sampled most of the streams on the island. Reported here are the results of a 2009 survey that sampled freshwater fishes in 43 streams flowing through Park boundaries. Overall, 19 species were collected, and many were recorded from specific streams for the first time. Notemigonus crysoleucas (Golden Shiner) was the most widely distributed species (47% of surveyed streams), while Pimephales promelas (Fathead Minnow) was recorded from ANP for the first time as a recent bait-bucket introduction. This survey provides an updated baseline for ANP stream fishes and will be used to identify streams for restoration and measure the impacts of future environmental perturbations.
Integrable almost complex structures in principal bundles and holomorphic curves
Creators: name: Zentner, Raphael
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We consider principal fibre bundles with a given connection and construct almost complex structures on the total space if the adjoint bundle is isomorphic to the tangent bundle of the base. We derive the integrability condition. If the structure group is compact, then a choice of an ad-invariant inner product on its Lie algebra gives naturally the structure of a Riemannian manifold to the base. The integrability condition is then expressed in geometric terms. In particular we get a relation to hyperbolic geometry if the structure group is SU(2) or SO(3). The bundle of orthonormal frames of a hyperbolic oriented 3-manifold is naturally a complex manifold. If the base is geodesically complete and connected, then we can endow the total space with a locally free transitive holomorphic action of the complexified structure group. We then get some restrictions for holomorphic maps from Riemann surfaces to the total space. If the pull-back of a canonical Lie algebra valued 1-form on the total space is of scalar form, then the holomorphic map factorises through an elliptic curve. If the induced map to the base is conformal, then the associated holomorphic map with value in $P^2 \mathbb{C}$ factorises through a smooth quadric.
description: 29 pages
Path Integral Solution of Linear Second Order Partial Differential Equations II. Elliptic, Parabolic and Hyperbolic Cases
Creators: name: LaChapelle, J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A theorem that constructs a path integral solution for general second order partial differential equations is specialized to obtain path integrals that are solutions of elliptic, parabolic, and hyperbolic linear second order partial differential equations with Dirichlet/Neumann boundary conditions. The construction is checked by evaluating several known kernels for regions with planar and spherical boundaries. Some new calculational techniques are introduced.
description: 33 pages
Two-loop evolution equations for flavor-singlet light-ray operators
Creators: name: Braun, V. M.
name: Manashov, A. N.
name: Moch, S.
name: Strohmaier, M.
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: QCD in non-integer d = 4 − 2ϵ space-time dimensions enjoys conformal invariance at the special fine-tuned value of the coupling. Counterterms for composite operators in minimal subtraction schemes do not depend on ϵ by construction, and therefore the renormalization group equations for composite operators in physical (integer) dimensions inherit conformal symmetry. This observation can be used to restore the complete evolution kernels that take into account mixing with the operators containing total derivatives from their eigenvalues (anomalous dimensions). Using this approach we calculate the two-loop (NLO) evolution kernels for the leading twist flavor-singlet operators in the position space (light-ray operator) representation. As the main result of phenomenological relevance, in this way we are able to confirm the evolution equations of flavor-singlet generalized hadron parton distributions derived earlier by Belitsky and Müller using a different approach.
One Dimensional Chemistry and the Generalised Local Density Approximation
Creators: name: Ball, Caleb James
Publisher: name: The Australian National University
Year: 2017
Subjects: theoretical chemistry
quantum chemistry
one dimension
one dimensional chemistry
density functional theory
dft
local density approximation
lda
generalised local density approximation
glda
ringium

description: In this thesis we explore two distinct topics: a unique model of one dimensional chemistry and the development of the generalised local density approximation. The specific one dimensional system we study is one in which three dimensional particles, both electrons and nuclei, have been strictly confined to move on a line. This means we retain the Coulomb interaction of the three dimensional particles. This is problematic, the singularity of this interaction is exceptionally strong in one dimension and requires special techniques be used to circumvent it. In our study we employ the Dirichlet boundary conditions, which require the wavefunction to vanish whenever two particles touch. This brings some severe consequences including, most controversially, that the nuclei are impenetrable to the electrons. However it does permit finite binding energies of electrons to nuclei and has a number of unique features which make it an interesting system to study for insight into electron behaviour. Here we explore the mechanics of chemistry within this model. We construct an unusual periodic table for one dimensional elements and explore the mechanisms by which they bind into molecules. Ultimately, we are able to develop a set of simple rules with which one can easily predict the outcome of a reaction in this unique model. The generalised local density approximation is a new method for constructing density functional approximations. The local density approximation, the most simplistic of all density functionals, is built off the properties of the infinite uniform electron gas and as result replicates them exactly. It is also possible to construct finite uniform electron gases and, contrary to expectations, the regular local density approximation is unable to model these finite gases correctly. The generalised local density approximation incorporates these finite gases into its construction. We account for their differences from the infinite gases by introducing a new parameter which measures the proximity of electrons at a point in space. We can then construct a correlation functional for one dimensional systems using a method which closely resembles that used for previous local density approximations. Because of the definition of the new parameter, one would formally consider this functional to be a meta-GGA functional. However it retains the exceptionally simple form of a local density approximation. This new functional is observed to have greatly improved accuracy compared to the standard local density approximation when tested against a variety of systems, including reactions of the one dimensional molecules identified earlier. Although we only construct a one dimensional functional here, the method is easily generalised to other dimensions.
PSR J2021+3651: A New Gamma-Ray Pulsar Candidate
Creators: name: Roberts, Mallory S. E.
name: Hessels, Jason W. T.
name: Ransom, Scott M.
name: Kaspi, Victoria M.
name: Freire, Paulo C. C.
name: Crawford, Fronefield
name: Lorimer, Duncan R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The COS B high energy gamma-ray source 2CG 075+00, also known as GeV J2020+3658 or 3EG J2021+3716, has avoided identification with a low energy counterpart for over twenty years. We present a likely identification with the discovery and subsequent timing of a young and energetic pulsar, PSR J2021+3651, with the Wideband Arecibo Pulsar Processor at the Arecibo Observatory. PSR J2021+3651 has a rotation period P = 104ms and Pdot = 9.6 x 10^{-14}, implying a characteristic age T_c = 17kyr and a spin-down luminosity Edot = 3.4 x 10^{36} erg s^{-1}. The pulsar is also coincident with the ASCA source AX J2021.1+3651. The implied luminosity of the associated X-ray source suggests the X-ray emission is dominated by a pulsar wind nebula unresolved by ASCA. The pulsar's unexpectedly high dispersion measure DM = 371 pc cm^{-3} and the d > 10kpc DM distance pose a new question: is PSR J2021+3651 an extremely efficient gamma-ray pulsar at the edge of the Galaxy? This is a question for AGILE and GLAST to answer.
description: 6 pages, 2 figures, to appear in "High Energy Studies of Supernova Remnants and Neutron Stars" (COSPAR 2002, Houston), Advances in Space Research, in press
Cosmological Perturbations from a New-Physics Hypersurface
Creators: name: Bozza, V.
name: Giovannini, M.
name: Veneziano, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within a broad class of inflationary models we critically analyze the way initial quantum fluctuations on a new-physics hypersurface (NPH) affect standard predictions for large-scale cosmological perturbations. We find that these so-called transplanckian effects depend crucially on the definition of the "vacuum state" in particular on which Hamiltonian is minimized on the NPH in order to select such a state. Transplanckian effects can be made much smaller than previously suggested if sufficiently "adiabatic" Hamiltonians are minimized.
description: 12 pages; corrected typos in the text; added two references
Asymptotics of the time-discretized log-normal SABR model: The implied volatility surface
Creators: name: Pirjol, Dan
name: Zhu, Lingjiong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Economics and business

description: We propose a novel time discretization for the log-normal SABR model which is a popular stochastic volatility model that is widely used in financial practice. Our time discretization is a variant of the Euler-Maruyama scheme. We study its asymptotic properties in the limit of a large number of time steps under a certain asymptotic regime which includes the case of finite maturity, small vol-of-vol and large initial volatility with fixed product of vol-of-vol and initial volatility. We derive an almost sure limit and a large deviations result for the log-asset price in the limit of large number of time steps. We derive an exact representation of the implied volatility surface for arbitrary maturity and strike in this regime. Using this representation we obtain analytical expansions of the implied volatility for small maturity and extreme strikes, which reproduce at leading order known asymptotic results for the continuous time model.
description: 40 pages, 2 figures, 3 tables
Tuning stochastic matrix models with hydrologic data to predict the population dynamics of a riverine ﬁsh
Creators: name: Sakaris, Peter
name: Irwin, Elise R.
Publisher: name: Ecological Society of America
Year: 2021
Subjects: Coosa River, Alabama, USA; dams; ﬁshes; ﬂathead catﬁsh; hydrology; lotic; matrix model;Ocmulgee River, Georgia, USA; population dynamics; Pylodictis olivaris; riverine; river regulation

description: We developed stochastic matrix models to evaluate the effects of hydrologicalteration and variable mortality on the population dynamics of a lotic ﬁsh in a regulated riversystem. Models were applied to a representative lotic ﬁsh species, the ﬂathead catﬁsh(Pylodictis olivaris), for which two populations were examined: a native population from aregulated reach of the Coosa River (Alabama, USA) and an introduced population from anunregulated section of the Ocmulgee River (Georgia, USA). Size-classiﬁed matrix models wereconstructed for both populations, and residuals from catch-curve regressions were used asindices of year class strength ( i.e., recruitment). A multiple regression model indicated thatrecruitment of ﬂathead catﬁsh in the Coosa River was positively related to the frequency ofspring pulses between 283 and 566 m3/s. For the Ocmulgee River population, multipleregression models indicated that year class strength was negatively related to mean Marchdischarge and positively related to June low ﬂow. When the Coosa population was modeled toexperience ﬁve consecutive years of favorable hydrologic conditions during a 50-yearprojection period, it exhibited a substantial spike in size and increased at an overall 0.2%annual rate. When modeled to experience ﬁve years of unfavorable hydrologic conditions, theCoosa population initially exhibited a decrease in size but later stabilized and increased at a 0.4% annual rate following the decline. When the Ocmulgee River population was modeled toexperience ﬁve years of favorable conditions, it exhibited a substantial spike in size andincreased at an overall 0.4% annual rate. After the Ocmulgee population experienced ﬁve yearsof unfavorable conditions, a sharp decline in population size was predicted. However, thepopulation quickly recovered, with population size increasing at a 0.3% annual rate followingthe decline. In general, stochastic population growth in the Ocmulgee River was more erraticand variable than population growth in the Coosa River. We encourage ecologists to developsimilar models for other lotic species, particularly in regulated river systems. Successfulmanagement of ﬁsh populations in regulated systems requires that we are able to predict howhydrology affects recruitment and will ultimately inﬂuence the population dynamics of ﬁshes.
Coarse graining as a representation change
Creators: name: Bodendorfer, Norbert
name: Haneder, Fabian
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: We discuss how SU coherent states from the discrete series allow for a natural coarse graining operation. The physical application is quantum theories based on a set of three extensive observables whose Poisson algebra is isomorphic to su. In particular, we show that a Perelomov coherent state with representation label and spinor label z encodes the physics of N independent subsystems with labels . This property is suggested by existing results for the expectation values and variances of the observables. We prove that it holds for all higher moments. Our results in particular apply to a recent quantum cosmology model that has been derived using SU(1,1) group theoretic quantisation techniques. For it, it follows that a certain notion of fiducial cell independence holds exactly at the quantum level when using the coherent states.
Analytical results for the capacitance of a circular plate capacitor
Creators: name: Reichert, Benjamin
name: Ristivojevic, Zoran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Classical Analysis and ODEs (math.CA)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the classic problem of the capacitance of a circular parallel plate capacitor. At small separations between the plates, it is initially considered in 19th century by Kirchhoff who found the leading and the subleading term in the capacitance. Despite a large interest in the problem, one and a half century later, analytically was found only the second subleading term. Using the recent advances in the asymptotic analysis of Fredholm integral equations of the second kind with finite support, here we study the one governing the circular capacitor, known as the Love equation. We found analytically many new subleading terms in the capacitance at small separations. We also calculated the asymptotic expansion at large separations, thus providing the two simple expressions which practically describe the capacitance at all distances. The approach described here could be used to find exact analytical expansions for the capacitance to an arbitrary number of terms in both regimes of small and large separations.
description: 9 pages
Precise method for the determination of the neutron electric form factor based on a relativistic analysis of the process $d(e,e'n)p
Creators: name: Tomasi-Gustafsson, E.
name: Gakh, G. I.
name: Rekalo, A. P.
name: Rekalo, M. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We generalize the recoil polarization method for the determination of the proton form factor to the case of the disintegration of vector polarized deuterons by longitudinally polarized electrons, $\vec d(\vec e, e'n)p$. We suggest to measure for this reaction, in the kinematics of quasi-elastic $en$-scattering, the ratio $R_{xz}=A_x/A_z$ of the asymmetries induced by the $x$- and $z$-components of the deuteron vector polarization. In the framework of the relativistic impulse approximation the ratio $R_{xz}$ is sensitive to $G_{En}$ in a wide interval of momentum transfer squared, whereas it depends weakly on the details of the $np$-interaction and on the choice of the deuteron wave function. Moreover, in the range $0.5\le Q^2\le$1.5 GeV$^2$, the ratio $R_{xz}$ shows a smooth dependence on $Q^2$, making the analysis simpler.
description: 7 pages, 4 figs, 1 table
MOESM2 of Improving management of comorbidity in patients with colorectal cancer using comprehensive medical assessment: a pilot study
Creators: name: Signal, Virginia
name: Jackson, Christopher
name: Signal, Louise
name: Hardie, Claire
name: Holst, Kirsten
name: McLaughlin, Marie
name: Steele, Courtney
name: Sarfati, Diana
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 2: CMA criteria.
title: What is Biological Engineering? – A Magazine
Creators: name: Christensen, Morgan
Publisher: name: Utah State University
Year: 2024

description: Biological Engineering is one of the less commonly known fields of engineering and can be challenging to describe to someone outside the discipline. The most common question I've been asked during my undergraduate career is "What is biological engineering?". My answer has changed throughout my time at Utah State University as I've had more experiences within the discipline. This project focuses on answering this question in the format of a magazine to help bridge the gap between those in the discipline and a general audience. By using a magazine as the format, the content must be organized and written in a way that makes sense to someone without any knowledge of the discipline but is still interesting to those within biological engineering. The magazine highlights the various senior design projects being worked on in the Biological Engineering Department at Utah State University. A survey was used to gather input from the current seniors about their projects. The information was then consolidated into articles that were combined into a magazine format. The results of the project are not only a magazine but also a greater understanding of the need for disciplines, especially those in STEM, to improve communication with audiences from different backgrounds. By making this magazine accessible to the public it becomes a resource that provides exposure to what is normally considered a broad and difficult-to-explain engineering field. Ultimately, the magazine answers the question of "What is biological engineering?" in a single sentence. Biological engineering is the application of engineering principles to living systems.
Cooperative Vision-based Localization Networks with Communication Constraints
Creators: name: Zhang, Fengzhuo
name: Gu, Kai
name: Shen, Yuan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accurate location information is indispensable for the emerging applications of \ac{iov}, such as automatic driving and formation control. In the real scenario, vision-based localization has demonstrated superior performance to other localization methods for its stability and flexibility. In this paper, a scheme of cooperative vision-based localization with communication constraints is proposed. Vehicles collect images of the environment and distance measurements between each other. Then vehicles transmit the coordinates of feature points and distances with constrained bits to the edge to estimate their positions. The \ac{fim} for absolute localization is first obtained, based on which we derive the relative \ac{speb} through subspace projection. Furthermore, we formulate the corresponding bit allocation problem for relative localization. Finally, a \ac{vgd} algorithm is developed by considering the influence of photographing, distance measurements and quantization noises. Compared with conventional bit allocation methods, numerical results demonstrate the localization performance gain of our proposed algorithm with higher computational efficiency.
Zamolodchikov operator-valued relations for SL(2,R)_k WZNW model
Creators: name: Bertoldi, Gaetano
name: Giribet, Gaston
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An infinite set of operator-valued relations that hold for reducible representations of the sl(2)_k algebra is derived. These relations are analogous to those recently obtained by Zamolodchikov which involve logarithmic fields associated to the Virasoro degenerate representations in Liouville theory. The fusion rules of the sl(2)_k algebra turn out to be a crucial step in the analysis. The possible relevance of these relations for the boundary theory in the AdS_3/CFT_2 correspondence is suggested.
description: 20 pages
Proof of sum rules for double parton distributions in QCD
Creators: name: Diehl, M.
name: Plößl, P.
name: Schäfer, A.
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: 530 Physik

description: Double hard scattering can play an important role for producing multiparticle final states in hadron-hadron collisions. The associated cross sections depend on double parton distributions, which at present are only weakly constrained by theory or measurements. A set of sum rules for these distributions has been proposed by Gaunt and Stirling some time ago. We give a proof for these sum rules at all orders in perturbation theory, including a detailed analysis of the renormalisation of ultraviolet divergences. As a by-product of our study, we obtain the form of the inhomogeneous evolution equation for double parton distributions at arbitrary perturbative order.