cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
ORGANIC N FERTILIZATION EFFECTS ON PASTURE ESTABLISHMENT AND FOREST FIRE PREVENTION
Creators: name: FERREIRO-DOMINGUEZ NURIA
name: RODRIGUEZ-RIGUEIRO JAVIER
name: RIGUEIRO-RODRIGUEZ ANTONIO
name: MOSQUERA-LOSADA MARÍA ROSA
Publisher: name: Zenodo
Year: 2018
Subjects: Soil fertility
pasture production

description: Soil fertility is key to ensure high pasture production. Lime and fertilizers usually improves soil chemical properties in acid soils, enhancing herbaceous pasture establishment instead of woody understory vegetation in silvopastoral systems, once established harvest that promotes fire risk and causes people death in South Europe. Once established, grazing or harvesting maintains the dominance of the herbaceous component in the silvopastoral system (Mosquera-Losada et al. 2006). Liming and fertilization also helps to maintain botanical composition of sown grasslands, leading to a better animal grazing and production and, in Galicia, to a clear reduction of forest fire risk. Increasing fertility is usually based on mineral fertilizers that are currently costly for both farmers and the environment due to fertilizer production and transport. Thus, using organic fertilizers easily available and close to the farm should be promoted. Municipal sewage sludge (SS) is a good option to increase pasture production and enhance soil pH of acid soils in Galicia (Mosquera-Losada et al., 2010), but could cause some harmful to the environment due to higher proportion of heavy metals SS has compared with soil, which needs to be evaluated at long term. This study aims at evaluating the effect of three doses of SS (160, 320 and 480 kg total N ha-1) combined or not with lime, on the botanic pasture composition, compared with control treatments (no fertilisation (NF) and mineral fertilisation (MIN)) during twelve years in a silvopastoral system established under Pinus radiata D. Don in Galicia.
Artificial neural network modeling of sliding wear
Creators: name: Argatov, Ivan I.
name: Chai, Young S.
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: wear coefficient
subject: sliding wear
subject: artificial neural network
subject: specific wear rate
subject: aluminum alloy matrix composites

description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: A widely used type of artificial neural networks, called multilayer perceptron, is applied for data-driven modeling of the wear coefficient in sliding wear under constant testing conditions. The integral and differential forms of wear equation are utilized for designing an artificial neural network-based model for the wear rate. The developed artificial neural network modeling framework can be utilized in studies of wearing-in period and the so-called true wear coefficient. Examples of the use of the developed approach are given based on the experimental data published recently.
A new logotropic model based on a complex scalar field with a logarithmic potential
Creators: name: Chavanis, Pierre-Henri
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We introduce a new logotropic model based on a complex scalar field with a logarithmic potential that unifies dark matter and dark energy. The scalar field satisfies a nonlinear wave equation generalizing the Klein-Gordon equation in the relativistic regime and the Schrödinger equation in the nonrelativistic regime. This model has an intrinsically quantum nature and returns the $Λ$CDM model in the classical limit $\hbar\rightarrow 0$. It involves a new fundamental constant of physics $A/c^2=2.10\times 10^{-26}\, {\rm g}\, {\rm m}^{-3}$ responsible for the late accelerating expansion of the Universe and superseding the Einstein cosmological constant $Λ$. The logotropic model is almost indistinguishable from the $Λ$CDM model at large (cosmological) scales but solves the CDM crisis at small (galactic) scales. It also solves the problems of the fuzzy dark matter model. Indeed, it leads to cored dark matter halos with a universal surface density $Σ_0^{\rm th}=5.85\,\left ({A}/{4πG}\right )^{1/2}=133\, M_{\odot}/{\rm pc}^2$. This universal surface density is predicted from the logotropic model without adjustable parameter and turns out to be close to the observed value $Σ_0^{\rm obs}=141_{-52}^{+83}\, M_{\odot}/{\rm pc}^2$. We also argue that the quantities $Ω_{\rm dm,0}$ and $Ω_{\rm de,0}$, which are usually interpreted as the present proportion of dark matter and dark energy in the $Λ$CDM model, are equal to $Ω_{\rm dm,0}^{\rm th}=\frac{1}{1+e}(1-Ω_{\rm b,0})=0.2559$ and $Ω_{\rm de,0}^{\rm th}=\frac{e}{1+e}(1-Ω_{\rm b,0})=0.6955$ in very good agreement with the measured values $Ω_{\rm dm,0}^{\rm obs}=0.2589$ and $Ω_{\rm de,0}^{\rm obs}=0.6911$ (their ratio $2.669$ is close to the pure number $e=2.71828...$).
An Approach To Super-Resolution Of Sentinel-2 Images Based On Generative Adversarial Networks
Creators: name: Zhang, Kexin
name: Sumbul, Gencer
name: Demir, Begüm
Publisher: name: Technische Universität Berlin
Year: 2020
Subjects: subject: 006 Spezielle Computerverfahren
subject: Sentinel-2 images
subject: super-resolution
subject: generative adversarial network
subject: remote sensing

description: This paper presents a generative adversarial network based super-resolution (SR) approach (which is called as S2GAN) to enhance the spatial resolution of Sentinel-2 spectral bands. The proposed approach consists of two main steps. The first step aims to increase the spatial resolution of the bands with 20m and 60m spatial resolutions by the scaling factors of 2 and 6, respectively. To this end, we introduce a generator network that performs SR on the lower resolution bands with the guidance of the bands associated to 10m spatial resolution by utilizing the convolutional layers with residual connections and a long skip-connection between inputs and outputs. The second step aims to distinguish SR bands from their ground truth bands. This is achieved by the proposed discriminator network, which alternately characterizes the high level features of the two sets of bands and applying binary classification on the extracted features. Then, we formulate the adversarial learning of the generator and discriminator networks as a min-max game. In this learning procedure, the generator aims to produce realistic SR bands as much as possible so that the discriminator incorrectly classifies SR bands. Experimental results obtained on different Sentinel-2 images show the effectiveness of the proposed approach compared to both conventional and deep learning based SR approaches.
Molecular simulation of discoidal HDL lipoprotein particles
Creators: name: Siddiq, Hind
Publisher: name: Lancaster University
Year: 2023

description: High-density lipoprotein (HDL) has been determined to play an essential role as an atheroprotective in atherosclerosis – the thickening and hardening of arteries. HDL particles are important delivery vehicles in the reverse cholesterol transport (RCT) pathway wherein excess cholesterol is removed from peripheral tissues and transported to the liver for redistribution or removal from the body. The particles undergo a sequential development from being lipid-free comprising only the protein Apolipoprotein A-I (ApoA-I), to discoidal HDL, and finally forming spherical HDL. ApoA-I appears to stabilise the particles as well as influencing the activity of the enzymes ABCA and LCAT, and recognition of the HDL particles by the scavenger receptors in the liver. Apolipoprotein Zaragoza (ApoA-I Z) and Apolipoprotein Milano (ApoA-I M) are natural mutations of Apolipoprotein A-I. Carriers of these mutations have a lower level of HDL-cholesterol and yet a low risk of cardiovascular disease. Discoidal HDL (dHDL) particles take the form of a lipid disk stabilised by two ApoA-I molecules surrounding the edges. Here we have investigated the structure and physical characterisation of dHDL using molecular dynamics simulations. Being soft matter, the structure of dHDL and its self-assembly is still not entirely resolved. We have employed molecular dynamics simulation (using both atomistic and coarse-grained models), including enhanced sampling methods (temperature replica exchange, Hamiltonian replica exchange, Jarzynski’s non-equilibrium, metadynamic, and umbrella sampling approach) to explore the interactions of ApoA-I proteins in isolation, self-assembly of dHDL particles, and the free energy surface for the chain-chain interaction of ApoA-I proteins within the dHDL complex. Simulations have been carried out on the wild type and the ApoA-I mutants ApoA-I Z and ApoA-I M. The simulations of ApoA-I monomers and dimers in water solutions indicate that wild-type ApoA-I is more stable and more rapid in changing conformation than ApoA-I Z and ApoA-I M mutants. With respect to the self-assembly of dHDL, the standard MD simulations do not converge to equilibrium as the emergent structure becomes kinetically locked. The use of thermal replica exchange is also ineffective, being inefficient for large systems. Hamiltonian exchange wherein the ApoA-I protein chains are gradually transformed to generate a soft-core potential was observed to be more effective and indeed generated the double-belt structure with the experimentally known helix 5/2 registration. The free energy surface for the ApoA-I – ApoA-I pair interaction/registry in dHDL was inaccessible by Jarzynsky’s non-equilibrium approach and metadynamics but could be characterised using umbrella sampling. The surface suggests that H5/2 is the most stable form in both ApoA-1 and ApoA-I Z in dHDL.
From Hybrid to Quadratic Inflation With High-Scale Supersymmetry Breaking
Creators: name: Pallis, Constantinos
name: Shafi, Qaisar
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Motivated by the reported discovery of inflationary gravity waves by the BICEP2 experiment, we propose an inflationary scenario in supergravity, based on the standard superpotential used in hybrid inflation. The new model yields a tensor-to-scalar ratio r ~ 0.14 and scalar spectral index ns ~ 0.964, corresponding to quadratic (chaotic) inflation. The important new ingredients are the high-scale, (1.6-10) x 10^13 GeV, soft supersymmetry breaking mass for the gauge singlet inflaton field and a shift symmetry imposed on the Kähler potential. The end of inflation is accompanied, as in the earlier hybrid inflation models, by the breaking of a gauge symmetry at (1.2-7.1) x 10^16 GeV, comparable to the grand-unification scale.
description: Version with minor corrections to appear in PLB
Going Beyond the Cumulant Approximation: Power Series Correction to Single Particle Green's Function in Holstein System
Creators: name: Pandey, Bipul
name: Littlewood, Peter B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the context of a single electron two orbital Holstein system coupled to dispersionless bosons, we develop a general method to correct single particle Green's function using a power series correction(PSC) scheme. We then outline the derivations of various flavors of cumulant approximation through the PSC scheme and explain the assumptions and approximations behind them. Finally, we compute and compare PSC spectral function with cumulant and exact diagonalized spectral functions and elucidate three regimes of this problem - two that cumulant explains and one where cumulant fails. We find that the exact and the PSC spectral functions match within spectral broadening across all three regimes.
description: 13 pages, 7 figures
Generalized energy measurements and modified transient quantum fluctuation theorems
Creators: name: Watanabe, Gentaro
name: Venkatesh, B. Prasanna
name: Talkner, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Determining the work which is supplied to a system by an external agent, provides a crucial step in any experimental realization of transient fluctuation relations. This, however, poses a problem for quantum systems, where the standard procedure requires the projective measurement of energy at the beginning and the end of the protocol. Unfortunately, projective measurements, which are preferable from the point of view of theory, seem to be difficult to implement experimentally. We demonstrate that, when using a particular type of generalized energy measurements, the resulting work statistics is simply related to that of projective measurements. This relation between the two work statistics entails the existence of modified transient fluctuation relations. The modifications are exclusively determined by the errors incurred in the generalized energy measurements. They are universal in the sense that they do not depend on the force protocol. Particularly simple expressions for the modified Crooks relation and Jarzynski equality are found for Gaussian energy measurements. These can be obtained by a sequence of sufficiently many generalized measurements which need not be Gaussian. In accordance with the central limit theorem, this leads to an effective error reduction in the individual measurements, and even yields a projective measurement in the limit of infinite repetitions.
description: 7 pages, published in Phys. Rev. E as an Editors' Suggestion
DDU-Net: Dual-Decoder-U-Net for Road Extraction Using High-Resolution Remote Sensing Images
Creators: name: Wang, Ying
name: Peng, Yuexing
name: Liu, Xinran
name: Li, Wei
name: Alexandropoulos, George C.
name: Yu, Junchuan
name: Ge, Daqing
name: Xiang, Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Extracting roads from high-resolution remote sensing images (HRSIs) is vital in a wide variety of applications, such as autonomous driving, path planning, and road navigation. Due to the long and thin shape as well as the shades induced by vegetation and buildings, small-sized roads are more difficult to discern. In order to improve the reliability and accuracy of small-sized road extraction when roads of multiple sizes coexist in an HRSI, an enhanced deep neural network model termed Dual-Decoder-U-Net (DDU-Net) is proposed in this paper. Motivated by the U-Net model, a small decoder is added to form a dual-decoder structure for more detailed features. In addition, we introduce the dilated convolution attention module (DCAM) between the encoder and decoders to increase the receptive field as well as to distill multi-scale features through cascading dilated convolution and global average pooling. The convolutional block attention module (CBAM) is also embedded in the parallel dilated convolution and pooling branches to capture more attention-aware features. Extensive experiments are conducted on the Massachusetts Roads dataset with experimental results showing that the proposed model outperforms the state-of-the-art DenseUNet, DeepLabv3+ and D-LinkNet by 6.5%, 3.3%, and 2.1% in the mean Intersection over Union (mIoU), and by 4%, 4.8%, and 3.1% in the F1 score, respectively. Both ablation and heatmap analyses are presented to validate the effectiveness of the proposed model.
New directions for top quark polarization in the $t$-channel process
Creators: name: Aguilar-Saavedra, J. A.
name: Santos, S. Amor dos
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We define three orthogonal axes to investigate the top quark polarization in the $t$-channel single top process. We provide expressions for the polarization in these axes in terms of anomalous $Wtb$ couplings. It is found that the polarizations in the two axes orthogonal to the spectator quark axis are very sensitive to an anomalous coupling involving a $\bar b_L σ^{μν} t_R$ dipole term. In particular, an asymmetry based on the polarization normal to the production plane is more sensitive to the imaginary part of this coupling than previously studied observables.
description: LaTeX 6 pages. Minor changes, matches published version
SOCIAL AND ENVIRONMENTAL BENEFITS RELATED TO LOCAL FOOD SYSTEMS IN THE ASSESSMENT OF FARMERS KEEPING NATIVE BREED ANIMALS
Creators: name: RENATA, MATYSIK-PEJAS
name: RENATA, MATYSIK-PEJAS
Publisher: name: Unknown
Year: 2022
Subjects: subject: Agribusiness
subject: Livestock Production/Industries
subject: farms
subject: local food systems
subject: native breed animals
subject: social benefits
subject: environmental benefits

description: The aim of this study is to present the opinion of farmers keeping native breeds of animals regarding selected social and environmental benefits associated with the functioning of local food systems. Local food systems are classified as so-called alternative food systems, which differ significantly from conventional systems. Their special feature is that the production, processing, trading and consumption of food occur in a relatively small geographical area. As a result, these systems create a certain set of interrelated processes linking producers with consumers, as well as with the local society, the environment and the economy. The method of direct interview was used to obtain information. The study involved 144 farmers selected in a purposeful manner. The territorial range of the research included three voivodships of south-eastern Poland. The regionalization of the study was due to the specificity of agriculture in these areas, favoring keeping the livestock of native breeds. It was found that in the area of social benefits, the highest acceptance was for the statement that local food systems allow for the traceability of products with the area of their origin. The hierarchy of assessments for the presented areas of environmental benefits indicates that the hierarchy of assessments for the presented areas of environmental benefits indicates that farmers are most supportive of the statement that local food systems can contribute to the conservation of biodiversity and the development of native animal breeds.
PASTURE PRODUCTION IN A SILVOPASTORAL SYSTEM ESTABLISHED WITH JUGLANS REGIA L. AND FERTILIZED WITH SEWAGE SLUDGE
Creators: name: MOSQUERA-LOSADA
name: MARÍA ROSA.
name: ARIAS-MARTINEZ
name: DARÍO.
name: RIGUEIRO-RODRÍGUEZ ANTONIO
name: FERREIRO-DOMINGUEZ
name: NURIA
Publisher: name: Zenodo
Year: 2018
Subjects: anaerobic digestion
compost and pelletisation

description: Nitrogen can be applied to the soil trough inorganic and organic fertilisers. Inorganic fertilisers are costly from both economic and environmental points of view. The use of sewage sludge (SS) as organic fertiliser is encouraged by the European Community since it can have valuable agronomic properties (EU, 1986), but SS can have higher levels of heavy metals than the soil, which could be a risk. In Europe, SS should be stabilised before applying it into the soils. The main forms of stabilisation are anaerobic digestion, compost and pelletisation. Silvopastoral systems, which are characterized by integrating woody vegetation with forage and livestock production in the same area, can modify the pasture production by the fertilisation with SS but also by the tree density (Mosquera-Losada et al., 2011). The aim of this study was to evaluate the effect of three types of SS (anaerobic, composted and pelletised) on pasture production compared with control treatments (no fertilisation and mineral fertilisation) in a silvopastoral system established under Juglans regia L. at different densities (277 and 625 trees ha-1).
Few-cycle vacuum squeezing in nanophotonics
Creators: name: Nehra, Rajveer
name: Sekine, Ryoto
name: Ledezma, Luis
name: Guo, Qiushi
name: Gray, Robert M.
name: Roy, Arkadev
name: Marandi, Alireza
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the most fundamental quantum states of light is squeezed vacuum, in which noise in one of the quadratures is less than the standard quantum noise limit. Significant progress has been made in the generation of optical squeezed vacuum and its utilization for numerous applications. However, it remains challenging to generate, manipulate, and measure such quantum states in nanophotonics with performances required for a wide range of scalable quantum information systems. Here, we overcome this challenge in lithium niobate nanophotonics by utilizing ultrashort-pulse phase-sensitive amplifiers for both generation and all-optical measurement of squeezed states on the same chip. We generate a squeezed state spanning over more than 25 THz of bandwidth supporting only a few optical cycles, and measure a maximum of 4.9 dB of squeezing ($\sim$11 dB inferred). This level of squeezing surpasses the requirements for a wide range of quantum information systems. Our results on generation and measurement of few-optical-cycle squeezed states in nanophotonics enable a practical path towards scalable quantum information systems with THz clock rates and open opportunities for studying non-classical nature of light in the sub-cycle regime.
description: 8 pages, 4 figures
On the Probability of Conjunctions of Stationary Gaussian Processes
Creators: name: Dȩbicki, Krzysztof
name: Hashorva, Enkelejd
name: Ji, Lanpeng
name: Tabis, Kamil
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60G15, 60G70

description: Let $\{X_i(t),t\ge0\}, 1\le i\le n$ be independent centered stationary Gaussian processes with unit variance and almost surely continuous sample paths. For given positive constants $u,T$, define the set of conjunctions $C_{[0,T],u}:=\{t\in [0,T]: \min_{1 \le i \le n} X_i(t) \ge u\}.$ Motivated by some applications in brain mapping and digital communication systems, we obtain exact asymptotic expansion of $ P(C_{[0,T],u} \not=φ)$ as $u\to\infty$. Moreover, we establish the Berman sojourn limit theorem for the random process $\{\min_{1 \le i \le n} X_i(t), t\ge0\}$ and derive the tail asymptotics of the supremum of each order statistics process.
description: 11 pages, Theorem 2.3 is new in this version
Integrating 3HP-based tuberculosis preventive treatment into Zimbabwe’s Fast Track HIV treatment model: Experiences from a pilot study
Creators: name: Zech, Jennifer
Publisher: name: figshare
Year: 2022
Subjects: Health and community services
Health systems
Implementation science and evaluation

description: Data from our pilot project: Integrating 3HP-based tuberculosis preventive treatment into Zimbabwe’s Fast Track HIV treatment model
Impulsive cylindrical gravitational wave: one possible radiative form emitted from cosmic strings and corresponding electromagnetic response
Creators: name: Wen, H.
name: Li, F. Y.
name: Fang, Z. Y.
name: Beckwith, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The cosmic strings(CSs) may be one important source of gravitational waves(GWs), and it has been intensively studied due to its special properties such as the cylindrical symmetry. The CSs would generate not only usual continuous GW, but also impulsive GW that brings more concentrated energy and consists of different GW components broadly covering low-, intermediate- and high-frequency bands simultaneously. These features might underlie interesting electromagnetic(EM) response to these GWs generated by the CSs. In this paper, with novel results and effects, we firstly calculate the analytical solutions of perturbed EM fields caused by interaction between impulsive cylindrical GWs (would be one of possible forms emitted from CSs) and background celestial high magnetic fields or widespread cosmological background magnetic fields, by using rigorous Einstein - Rosen metric. Results show: perturbed EM fields are also in the impulsive form accordant to the GW pulse, and asymptotic behaviors of the perturbed EM fields are fully consistent with the asymptotic behaviors of the energy density, energy flux density and Riemann curvature tensor of corresponding impulsive cylindrical GWs. The analytical solutions naturally give rise to the accumulation effect which is proportional to the term of distance^1/2, and based on it, we for the first time predict potentially observable effects in region of the Earth caused by the EM response to GWs from the CSs.
description: 34 pages, 12 figures
Ensemble-Based Experimental Design for Targeting Data Acquisition to Inform Climate Models
Creators: name: Dunbar, Oliver R. A.
name: Howland, Michael F.
name: Schneider, Tapio
name: Stuart, Andrew M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Data required to calibrate uncertain GCM parameterizations are often only available in limited regions or time periods, for example, observational data from field campaigns, or data generated in local high-resolution simulations. This raises the question of where and when to acquire additional data to be maximally informative about parameterizations in a GCM. Here we construct a new ensemble-based parallel algorithm to automatically target data acquisition to regions and times that maximize the uncertainty reduction, or information gain, about GCM parameters. The algorithm uses a Bayesian framework that exploits a quantified distribution of GCM parameters as a measure of uncertainty. This distribution is informed by time-averaged climate statistics restricted to local regions and times. The algorithm is embedded in the recently developed calibrate-emulate-sample (CES) framework, which performs efficient model calibration and uncertainty quantification with only $\mathcal{O}(10^2)$ model evaluations, compared with $\mathcal{O}(10^5)$ evaluations typically needed for traditional approaches to Bayesian calibration. We demonstrate the algorithm with an idealized GCM, with which we generate surrogates of local data. In this perfect-model setting, we calibrate parameters and quantify uncertainties in a quasi-equilibrium convection scheme in the GCM. We consider targeted data that are (i) localized in space for statistically stationary simulations, and (ii) localized in space and time for seasonally varying simulations. In these proof-of-concept applications, the calculated information gain reflects the reduction in parametric uncertainty obtained from Bayesian inference when harnessing a targeted sample of data. The largest information gain typically, but not always, results from regions near the intertropical convergence zone (ITCZ).
MPEC 2023-E51 : DAILY ORBIT UPDATE (2023 March 8)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Authentizitätsprüfung von Lebensmitteln mittels hochauflösender Schmelzkurvenanalyse
Creators: name: Wildbacher, Michaela
Year: 2023

description: Die Authentizität von Lebensmitteln dient als wichtiges Qualitätskriterium im Kampf gegen das weltweite Problem der Lebensmittelverfälschung. In der vorliegenden Masterarbeit wurde die Anwendbarkeit der Polymerase-Kettenreaktion gekoppelt mit der Hochauflösenden Schmelzkurvenanalyse (PCR HRM) in der Authentizitätsprüfung von Lebensmitteln getestet, für Insekten als Beispiel einer Speziesunterscheidung, und für Äpfel exemplarisch für eine Sortenunterscheidung. Die vier zum Verzehr in der EU zugelassenen Insektenspezies (Mehlwurm, Wanderheuschrecke, Heimchen, Buffalowurm) konnten mit einem zuvor zum Next-Generation Sequencing (NGS) verwendeten Primerpaar eindeutig von zahlreichen anderen Spezies unterschieden werden. Die Schmelzkurven des Heimchens ähnelten aber stark den Schmelzkurven der Kurzflügelgrille und Wüstenheuschrecke, die Kurven der Wanderheuschrecke waren schwer von den Kurven des Bohnenkäfers, der Krullfliegen und Zophobas zu unterscheiden. Mit Hilfe eines Primersets, bestehend aus den Primern, die in der NGS verwendet wurden, und drei neu entworfenen Primern konnten die Spezies voneinander unterschieden werden. Die Unterscheidbarkeit von Apfelsorten wurde mittels PCR HRM, basierend auf Primern, welche auf Mikrosatelliten abzielten, und DNA-Extrakten aus Schale, Fruchtfleisch, Apfelsaft, Apfelmost und Apfelmus geprüft. Schmelzkurven der Extrakte aus Schalen verhielten sich gleich wie Schmelzkurven der Extrakte aus Blättern. Kurven von Extrakten aus Fruchtfleisch wiesen dieselbe Kurvenform wie Extrakte aus Schalen auf, waren jedoch teilweise stark verschoben. Die Amplifikation der meisten Apfelsaft-, Apfelmost- und Apfelmusproben war aufgrund der geringen DNA-Konzentration der Extrakte und der teilweisen Degradierung der DNA als Folge der Verarbeitungsprozesse nicht möglich. Die PCR HRM hat generell großes Potential zur Authentizitätsbestimmung von Lebensmitteln, sie muss jedoch noch hinsichtlich ihres Einsatzes auf stark verarbeitete Lebensmittel validiert werden.
Prompt-photon plus jet associated photoproduction at HERA in the parton Reggeization approach
Creators: name: Kniehl, B. A.
name: Nefedov, M. A.
name: Saleev, V. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the photoproduction of isolated prompt photons associated with hadron jets in the framework of the parton Reggeization approach. The cross section distributions in the transverse energies and pseudorapidities of the prompt photon and the jet as well as the azimuthal decorrelation variables measured by the H1 and ZEUS collaborations at DESY HERA are nicely described by our predictions. The main improvements with respect to previous studies in the $k_T$-factorization framework include the application of the Reggeized-quark formalism, the generation of exactly gauge-invariant amplitudes with off-shell initial-state quarks, and the exact treatment of the $γR\to γg$ box contribution with off-shell initial-state gluons.
description: 35 pages, 15 figures, 1 table, matches journal version
Topological indices for open and thermal systems via Uhlmann's phase
Creators: name: Huang, Zhoushen
name: Arovas, Daniel P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Two-dimensional topological phases are characterized by TKNN integers, which classify Bloch energy bands or groups of Bloch bands. However, quantization does not survive thermal averaging or dephasing to mixed states. We show that using Uhlmann's parallel transport for density matrices (Rep. Math. Phys. 24, 229 (1986)), an integer classification of topological phases can be defined for a finite generalized temperature $T$ or dephasing Lindbladian. This scheme reduces to the familiar TKNN classification for $TT_{{\rm c},2}$, and exhibits a `gapless' intermediate regime where topological indices are not well-defined. We demonstrate these ideas in detail, applying them to Haldane's honeycomb lattice model and the Bernevig-Hughes-Zhang model, and we comment on their generalization to multi-band Chern insulators.
description: 4 pages, 2 figures, standalone supplemental material. Minor text and reference changes. To appear in Physical Review Letters
Multi-Layer Hydrostatic Equilibrium of Planets and Synchronous Moons: Theory and Application to Ceres and to Solar System Moons
Creators: name: Tricarico, Pasquale
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The hydrostatic equilibrium of multi-layer bodies lacks a satisfactory theoretical treatment despite its wide range of applicability. Here we show that by using the exact analytical potential of homogeneous ellipsoids we can obtain recursive analytical solutions and an exact numerical method for the hydrostatic equilibrium shape problem of multi-layer planets and synchronous moons. The recursive solutions rely on the series expansion of the potential in terms of the polar and equatorial shape eccentricities, while the numerical method uses the exact potential expression. These solutions can be used to infer the interior structure of planets and synchronous moons from the observed shape, rotation, and gravity. When applied to dwarf planet Ceres, we show that it is most likely a differentiated body with an icy crust of equatorial thickness 30-90 km and a rocky core of density 2.4-3.1 g/cm$^3$. For synchronous moons, we show that the $J_2/C_{22} \simeq 10/3$ and the $(b-c)/(a-c) \simeq 1/4$ ratios have significant corrections of order $Ω^2/(πG ρ)$, with important implications on how their gravitational coefficients are determined from flyby radio science data and on how we assess their hydrostatic equilibrium state.
description: 12 pages, 6 figures, in press in ApJ
Anais do XIV Workshop-Escola de SistemasAgentes, seus Ambientes e apliCações de Agentes, seus Ambientes e apliCações
Creators: name: Several Authors
Publisher: name: Zenodo
Year: 2020
Subjects: multi-agents
agents
workshop

description: Proceedings of the 14th Workshop-School on Agents, Environments, and Applications (WESAAC 2020)
 website http://dainf.pg.utfpr.edu.br/wesaac2020/
Studies on Particle Identification with dE/dx for the ILD TPC
Creators: name: Einhaus, Ulrich
name: Malek, Paul
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2018

description: 12th Annual Meeting of the Helmholtz Alliance "Physics at the Terascale", PhatT18, DESY, Hamburg, DESY, Universität Hamburg, Germany, 26 Nov 2018 - 28 Nov 2018
Frequency Stability Transfer in Passive Mode-Locked Quantum-dash Laser Diode using Optical Injection Locking
Creators: name: Manamanni, Karim
name: Steshchenko, Tatiana
name: Wiotte, Fabrice
name: Chaouche-Ramdane, Amine
name: Sahni, Mohamed Omar
name: Roncin, Vincent
name: Burck, Frédéric Du
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, we present an experimental study of the metrological stabilization of a solid-state frequency comb for embedded metrology applications. The comb is a passively mode-locked laser diode based on InGaAs/InP Quantum-dash structure emitting optical lines into a 9 nm bandwidth centered at 1.55 $μ$m with a repetition rate of 10.09 GHz. The frequency stabilization is achieved by optical injection locking of the comb with an external cavity laser diode referenced onto a metrological frequency standard. One observes the transfer of the spectral purity from the injection laser to the neighbouring modes of the injected one as well as the transfer of stability to the adjacent modes. The measurement of the long term stability highlights a frequency noise with random walk behavior specific of the passive mode locking process. Demonstration of sidebands of the injection laser at the repetition frequency of the comb also makes it possible to propose a transfer mechanism and to consider a complete stabilization of the frequency comb at a metrological stability level.
Corner contribution to percolation cluster numbers in three dimensions
Creators: name: Kovacs, Istvan A.
name: Igloi, Ferenc
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In three-dimensional critical percolation we study numerically the number of clusters, $N_Γ$, which intersect a given subset of bonds, $Γ$. If $Γ$ represents the interface between a subsystem and the environment, then $N_Γ$ is related to the entanglement entropy of the critical diluted quantum Ising model. Due to corners in $Γ$ there are singular corrections to $N_Γ$, which scale as $b_Γ \ln L_Γ$, $L_Γ$ being the linear size of $Γ$ and the prefactor, $b_Γ$, is found to be universal. This result indicates that logarithmic finite-size corrections exist in the free-energy of three-dimensional critical systems.
description: 6 pages, 7 figures. arXiv admin note: text overlap with arXiv:1210.4671
Immunofluorescent Staining of Elastin
Creators: name: Cantor, Jerome
name: Riaz, Muhammad
name: Qyang, Yibing
name: Lee, Seoyeon
Publisher: name: figshare
Year: 2023
Subjects: Medical physiology not elsewhere classified

description: Figures and citations showing specificity of primary and secondary antibodies used for immunostaining of elastin in normal and emphysematous human lungs.
Coherence rephasing combined with spin-wave storage using chirped control pulses
Creators: name: Demeter, Gabor
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Photon-echo based optical quantum memory schemes often employ intermediate steps to transform optical coherences to spin coherences for longer storage times. We analyze a scheme that uses three identical chirped control pulses for coherence rephasing in an inhomogeneously broadened ensemble of three-level $Λ$-systems. The pulses induce a cyclic permutation of the atomic populations in the adiabatic regime. Optical coherences created by a signal pulse are stored as spin coherences at an intermediate time interval, and are rephased for echo emission when the ensemble is returned to the initial state. Echo emission during a possible partial rephasing when the medium is inverted can be suppressed with an appropriate choice of control pulse wavevectors. We demonstrate that the scheme works in an optically dense ensemble, despite control pulse distortions during propagation. It integrates conveniently the spin-wave storage step into memory schemes based on a second rephasing of the atomic coherences.
description: 11 pages, 9 figures
A pipeline for automated processing of Corona KH-4 (1962-1972) stereo imagery
Creators: name: Ghuffar, Sajid
name: Bolch, Tobias
name: Rupnik, Ewelina
name: Bhattacharya, Atanu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The Corona KH-4 reconnaissance satellite missions from 1962-1972 acquired panoramic stereo imagery with high spatial resolution of 1.8-7.5 m. The potential of 800,000+ declassified Corona images has not been leveraged due to the complexities arising from handling of panoramic imaging geometry, film distortions and limited availability of the metadata required for georeferencing of the Corona imagery. This paper presents Corona Stereo Pipeline (CoSP): A pipeline for processing of Corona KH-4 stereo panoramic imagery. CoSP utlizes a deep learning based feature matcher SuperGlue to automatically match features point between Corona KH-4 images and recent satellite imagery to generate Ground Control Points (GCPs). To model the imaging geometry and the scanning motion of the panoramic KH-4 cameras, a rigorous camera model consisting of modified collinearity equations with time dependent exterior orientation parameters is employed. The results show that using the entire frame of the Corona image, bundle adjustment using well-distributed GCPs results in an average standard deviation (SD) of less than 2 pixels. The distortion pattern of image residuals of GCPs and y-parallax in epipolar resampled images suggest that film distortions due to long term storage as likely cause of systematic deviations. Compared to the SRTM DEM, the Corona DEM computed using CoSP achieved a Normalized Median Absolute Deviation (NMAD) of elevation differences of ~4 m over an area of approx. 4000 $km^2$. We show that the proposed pipeline can be applied to sequence of complex scenes involving high relief and glacierized terrain and that the resulting DEMs can be used to compute long term glacier elevation changes over large areas.
description: 24 Pages, 16 Figures
Introduction: Capturing the New Dynamics of Turkish Television Series. Disjunctions and Continuities
Creators: name: Vitrinel, Ece
name: Kaptan, Yeşim
name: Algan, Ece
Publisher: name: Series - International Journal of TV Serial Narratives
Year: 2023

description: Series - International Journal of TV Serial Narratives, Vol. 8 No. 2 (2022): Capturing the New Dynamics of Turkish Television Series: Disjunctions and Continuities
Experimental techniques for Higgsinos with $\Delta(M) ∼$ 1 GeV
Creators: name: Berggren, Carl Mikael
name: Sasikumar, S
name: List, Jenny
name: Sert, Hale
name: Bruemmer, Felix
name: Moortgat-Pick, Gudrid
name: Robens, T.
name: Rolbiecki, K.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2018

description: Asain Linear Collider  Workshop, ALCW18, Fukoka, Japan, 28 May 2018 - 1 Jun 2018
data from Solid-phase synthesis and properties of stereocontrolled boranophosphate/phosphate and phosphorothioate/phosphate chimeric oligouridylates
Creators: name: Sato, Kazuki
name: Nukaga, Yohei
name: Wada, Takeshi
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Organic Chemistry
subject: FOS: Chemical sciences

description: HPLC profiles and melting curves
Towards a Social History of Turkey Through Television Series
Creators: name: Uğur Tanrıöver, Hülya
Publisher: name: Series - International Journal of TV Serial Narratives
Year: 2023

description: By taking a sociological perspective toward relationships between media products and social issues and relying on historical analysis of Turkish TV series in the last five decades, this article explores the transformation of Turkish TV series in the context of changing socio-political, cultural and economic milieu in Turkey. Focusing on 102 TV series broadcast between 1974 and 2022, it strives to understand the social and political history of the country through television series. The article concludes that while Turkish TV series have reflected the ever-changing political orientation of the government and constant cultural fluctuations of society in every epoch, the discourse, narrative and formats of TV series have undergone significant transformations due to the impact of socio-cultural and political issues, the development of the TV production and broadcasting sector, and cultural policies of the state in Turkey. In this case, Turkish TV series can help us to understand the failed attempt of the governments for creating a national community united around middle-class values in the 1980s and 1990s as well as the polarized structure of society in today’s Turkey.
description: Series - International Journal of TV Serial Narratives, Vol. 8 No. 2 (2022): Capturing the New Dynamics of Turkish Television Series: Disjunctions and Continuities
Nucleation and cluster formation in low-density nucleonic matter: A mechanism for ternary fission
Creators: name: Wuenschel, S.
name: Zheng, H.
name: Hagel, K.
name: Meyer, B.
name: Barbui, M.
name: Kim, E. J.
name: Roepke, G.
name: Natowitz, J. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Ternary fission yields in the reaction 241Pu(nth,f) are calculated using a new model which assumes a nucleation-time moderated chemical equilibrium in the low density matter which constitutes the neck region of the scissioning system. The temperature, density, proton fraction and fission time required to fit the experimental data are derived and discussed. A reasonably good fit to the experimental data is obtained. This model provides a natural explanation for the observed yields of heavier isotopes relative to those of the lighter isotopes, the observation of low proton yields relative to 2H and 3H yields and the non-observation of 3He, all features which are shared by similar thermal neutron induced and spontaneous fissioning systems.
description: 6 pages, 3 figures
Conservative and radiative dynamics of spinning bodies at third post-Minkowskian order using worldline quantum field theory
Creators: name: Jakobsen, Gustav Uhre
name: Mogull, Gustav
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using the spinning worldline quantum field theory formalism we calculate the quadratic-in-spin momentum impulse $Δp_i^μ$ and spin kick $Δa_i^μ$ from a scattering of two arbitrarily oriented spinning massive bodies (black holes or neutron stars) in a weak gravitational background up to third post-Minkowskian (PM) order ($G^3$). Two-loop Feynman integrals are performed in the potential region, yielding conservative results. For spins aligned to the orbital angular momentum we find a conservative scattering angle that is fully consistent with state-of-the-art post-Newtonian results. Using the 2PM radiated angular momentum previously obtained by Plefka, Steinhoff and the present authors we generalize the angle to include radiation-reaction effects, in which case it avoids divergences in the high-energy limit.
description: 5 pages, 2 figures + appendices
title: Vernetzte Selbsthilfe in Sozialen Medien am Beispiel des Hochwassers 2013
Creators: name: Kaufhold, Marc-André
name: Reuter, Christian
Publisher: name: De Gruyter
Year: 2023

description: Dieser Artikel untersucht den Einsatz sozialer Medien während des Hochwassers 2013 in Deutschland. Über Twitter, Facebook, Google Maps und auf weiteren Plattformen koordinierten betroffene Bürger und freiwillige Helfer untereinander Hilfsaktivitäten und lieferten dabei einen ergänzenden und signifikanten Beitrag zum offiziellen Katastrophenschutz. Neben der qualitativen Analyse ausgewählter, entstandener Hilfsnetzwerke wurden zusätzlich Interviews mit Facebook-Gruppengründern geführt. Die Ziele dieser Studie liegen zum einen in der Analyse des Benutzungsverhaltens sozialer Medien in Katastrophenlagen, zum anderen in der Identifikation von Gestaltungs- und Erweiterungspotenzialen für soziale Medien im Katastrophenschutz.