cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
WorldFAIR (MS10) WorldFAIR Findings workshop
Creators: name: Hodson, Simon
name: Gregory, Arofan
name: Molloy, Laura
Publisher: name: Zenodo
Year: 2023
Subjects: WorldFAIR
data interoperability
FAIR data

description: The stated aim of this Milestone is to provide evidence of a workshop arranged to define overarching findings with case study participants at International Data Week 2023 (IDW2023), 23-26 October 2023, in Salzburg, Austria.  However, earlier in October 2023, WorldFAIR WP02 also ran a week-long workshop, 'Defining a Core Metadata Framework for Cross-Domain Data Sharing and Reuse' on 1-6 October at Schloss Dagstuhl — the Leibniz Center for Informatics near Wadern, Germany.  These two workshops were arranged to encourage case study work package participants to contribute in a practical way to the development of recommendations towards the Cross-Domain Interoperability Framework (CDIF), the major output of WorldFAIR Work Package 02.  
This Milestone will, accordingly, outline the key points of both of these events and direct the reader to further information on each. A final section summarises the result of these activities, and describes how they will impact the development of the CDIF guidelines.
Analysis of Oscillator Phase-Noise Effects on Self-Interference Cancellation in Full-Duplex OFDM Radio Transceivers
Creators: name: Syrjala, Ville
name: Valkama, Mikko
name: Anttila, Lauri
name: Riihonen, Taneli
name: Korpi, Dani
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper addresses the analysis of oscillator phase-noise effects on the self-interference cancellation capability of full-duplex direct-conversion radio transceivers. Closed-form solutions are derived for the power of the residual self-interference stemming from phase noise in two alternative cases of having either independent oscillators or the same oscillator at the transmitter and receiver chains of the full-duplex transceiver. The results show that phase noise has a severe effect on self-interference cancellation in both of the considered cases, and that by using the common oscillator in upconversion and downconversion results in clearly lower residual self-interference levels. The results also show that it is in general vital to use high quality oscillators in full-duplex transceivers, or have some means for phase noise estimation and mitigation in order to suppress its effects. One of the main findings is that in practical scenarios the subcarrier-wise phase-noise spread of the multipath components of the self-interference channel causes most of the residual phase-noise effect when high amounts of self-interference cancellation is desired.
description: Revised manuscript for IEEE Transactions on Wireless Communications, 2014
title: Suitability of Poaceae seeds for Plodia interpunctella development
Creators: name: Gvozdenac, Sonja
name: Milošević, Branko
name: Dolapčev, Anja
name: Ovuka, Jelena
name: Tatić, Mladen
name: Tanasković, Snežana
name: Vukajlović, Filip
Publisher: name: Julius Kühn-Institut
Year: 2018

description: One of the most important pests of stored grains is Plodia interpunctella (Hübner), whose larvae feed primarily on germinal part of the kernels, causing a reduction of seed germination and seed viability. This is detrimental for seeds of high category. However, seeds of different species within the same taxonomic family have different morphology (thickness of seed-coat, presence or absence of palea, palea loose or firmly attached to the seed etc.), which affects the susceptibility of seeds to P. interpunctella attack. The hypothesis was that seed hardness and the absence of palea could also significantly influence the life history of this pest. We assessed the suitability of different seeds from family Poacae (maize, wheat, barley, oats, ray, forage sorghum (variety), forage sorghum (hybrid), Sudan grass and millet) for P. interpunctella development and seeds susceptibility to pest attack (expressed in Susceptibility index –SI). The following parameters were monitored: larval mortality, adult emergence, mean developmental duration (from egg to adult) and female fecundity. Observations were carried out weekly, for 49 days. Data were statistically analyzed using Duncan’s multiple range Test. The highest larval mortality, the lowest number of emerged moths and the lowest fecundity were recorded on millet, Sudan grass and forage sorghum (variety and hybrid). However, the shortest larval development (27.8 days) and the highest fecundity (109.5-115.6 eggs) were on standard laboratory diet, maize and wheat. Morphometric measures of moths indicate that on unsuitable mediums like millet, Sudan grass, and different sorghum varieties the body lengths were statistically significantly shorter (0.5-0.6 cm) compared to other treatments (0.8-0.9 cm). According to the SI, the most susceptible were maize, wheat, barley, oats and ray, while moderately resistant were Sudan grass and millet. Testing kernel hardness and continuous improving of kernel resistance to storage insect pests could provide lower losses in stored grain quality and quantity.
description: Julius-Kühn-Archiv, Nr. 463, Vol.1 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018
Supplementary Data for: Development of a Predictive Enrichment Marker Strategy for the Oral GH Secretagogue LUM-201 for Children with Growth Hormone Deficiency
Creators: name: Bright, George
name: Do, Minh-Ha T.
name: McKew, John
name: Blum, Werner
name: Thorner, Michael
Publisher: name: figshare
Year: 2020
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine
subject: 111403 Paediatrics

description: Supplementary safety data for peer reviewed manuscript: Development of a Predictive Enrichment Marker for Oral GH Secretagogue LUM-201 in Children with Growth Hormone Deficiency. 
A starch-based implant as a controlled drug release system : non-invasive in vivo characterization using multispectral fluorescence imaging
Creators: name: Esfahani, Golbarg
name: Lucas, Henrike
name: Syrowatka, Frank
name: Mäder, Karsten
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 615

description: Solid implants are parenteral depot systems that can provide a controlled release of drugs in the desired body area over a few days to months. Finding an alternative for the two most commonly used polymers in the production of parenteral depot systems, namely Poly-(lactic acid) (PLA) and Poly-(lactide-co-glycolide) (PLGA), is of great importance due to their certain drawbacks. Our previous study showed the general suitability of starch-based implants for controlled drug release system. In this study, the system is further characterized and the release kinetics are investigated in vitro and in vivo by fluorescence imaging (FI). ICG and DiR, two fluorescent dyes with different hydrophobicity serving as a model for hydrophilic and hydrophobic drugs, have been used. In addition to 2D FI, 3D reconstructions of the starch implant were also used to assess the release kinetics in 3D mode. The in vitro and in vivo studies showed a fast release of ICG and a sustained release of DiR over 30 days from the starch-based implant. No treatment-related adverse effects were observed in mice. Our results indicate the promising potential of the biodegradable biocompatible starch-based implant for the controlled release of hydrophobic drugs.
Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction $γp \rightarrow ϕp$
Creators: name: Dey, B.
name: Meyer, C. A.
name: Bellis, M.
name: Williams, M
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: High-statistics measurements of differential cross sections and spin density matrix elements for the reaction $γp \to ϕp$ have been made using the CLAS detector at Jefferson Lab. We cover center-of-mass energies ($\sqrt{s}$) from 1.97 to 2.84 GeV, with an extensive coverage in the $ϕ$ production angle. The high statistics of the data sample made it necessary to carefully account for the interplay between the $ϕ$ natural lineshape and effects of the detector resolution, that are found to be comparable in magnitude. We study both the charged- ($ϕ\to K^+ K^-$) and neutral- ($ϕ\to K^0_S K^0_L$) $K\overline{K}$ decay modes of the $ϕ$. Further, for the charged mode, we differentiate between the cases where the final $K^-$ track is directly detected or its momentum reconstructed as the total missing momentum in the event. The two charged-mode topologies and the neutral-mode have different resolutions and are calibrated against each other. Extensive usage is made of kinematic fitting to improve the reconstructed $ϕ$ mass resolution. Our final results are reported in 10- and mostly 30-MeV-wide $\sqrt{s}$ bins for the charged- and the neutral-mode, respectively. Possible effects from $K^+ Λ^\ast$ channels with $p K\overline{K}$ final-states are discussed. These present results constitute the most precise and extensive $ϕ$ photoproduction measurements to date and in conjunction with the $ω$ photoproduction results recently published by CLAS, will greatly improve our understanding of low energy vector meson photoproduction.
description: 38 pages, 36 figures. arXiv admin note: substantial text overlap with arXiv:1006.0374
Small-scale vortices in stellar atmospheres
Creators: name: Canivete Cuissa, José Roberto
name: Riva, Fabio
name: Steiner, Oskar
Publisher: name: Zenodo
Year: 2022

description: Over the past two decades, observations and numerical simulations revealed the ubiquitous presence of small-scale vortical motions in the quiet solar atmosphere. Similar swirling flows can be expected to occur in other stellar atmospheres than solar. We investigate the presence and properties of small-scale vortices in the atmosphere of K8, K2, G2, and F5 main sequence stellar models. For that purpose, we analyze numerical simulations encompassing a small region around the stellar surface, ranging from the top layers of the convection zone to the upper photosphere. The simulations are realized with the three-dimensional radiative magneto-hydrodynamical CO5BOLD code and we employ a state-of-the-art automated algorithm for the identification of vortices. Numerous vortical motions are identified in all four stellar models. We present a statistical analysis on the main properties of these swirls, namely their average size, period of rotation, and number density. We find that the fastest vortices are found in the coolest stellar models and we derive a simple scaling law relating the effective temperature of the star to the typical period of rotation of a vortex. Ultimately, we want to study how swirl properties vary according to the strength of the surface magnetic field, which is amplified via the action of a small-scale turbulent dynamo.
description: {"references": ["Freytag, B., Steffen, M., Ludwig, H. G., et al. 2012, Journal of Computational Physics, 231, 919", "J. R. Canivete Cuissa, O. Steiner, 2022, A&A, Forthcoming article"]}
Content and curation policy for the Zenodo-communities (D2.2)
Creators: name: Nielsen, Lars Holm
name: Gonzalez Lopez, Jose Benito
Publisher: name: Zenodo
Year: 2023
Subjects: HORIZON-ZEN
Zenodo
Curation policy

description: Document defining the scope of the content and curation level as well as compliance with HE contractual requirements. The document will include a conceptual design if Zenodo features for the policy.
Production of optically trapped $^{87}$RbCs Feshbach molecules
Creators: name: Köppinger, Michael P.
name: McCarron, Daniel J.
name: Jenkin, Daniel L.
name: Molony, Peter K.
name: Cho, Hung-Wen
name: Cornish, Simon L.
name: Sueur, C. Ruth Le
name: Blackley, Caroline L.
name: Hutson, Jeremy M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report the production of $^{87}$RbCs Feshbach molecules in a crossed-beam dipole trap. A mixture of $^{87}$Rb and $^{133}$Cs is cooled close to quantum degeneracy before an interspecies Feshbach resonance at 197\,G is used to associate up to $\sim5000$ molecules with a temperature of $\sim300$\,nK. The molecules are confined in the dipole trap with a lifetime of 0.21(1)\,s, long enough for future experiments exploring optical transfer to the absolute ground state. We have measured the magnetic moment of the Feshbach molecules in a magnetic bias field range between 181 and 185\,G to demonstrate the ability to control the character of the molecular state. In addition we have performed Feshbach spectroscopy in a field range from 0 to 1200\,G and located three previously unobserved resonances at high magnetic fields.
description: 9 pages, 7 figures
Environment-Assisted Quantum State Restoration Via Weak Measurement
Creators: name: Wang, Kelvin
name: Zhao, Xinyu
name: Yu, Ting
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, a new quantum state restoration scheme is proposed based on the environment-assisted error correction (EAEC) scheme. By introducing a weak measurement reversal (WMR) operation, we shall show how to recover an initial state of a quantum open system without invoking random unitary decompositions which are known to be absent in many important physical systems. We illustrate our new scheme and compare it with a scheme purely based on the WMR operation in the case of dissipative channel. In the proposed new scheme, the successful probability of recovering an unknown initial state can be significantly improved when the information obtained from an environment measurement is taken into account. Moreover, we show that the applicable range of our proposed scheme is wider than the EAEC scheme. Finally, the optimization of the successful probability for possible Kraus decompositions is discussed.
description: 6 pages, 3 figures
'Rapid fire' spectroscopy of Kepler solar-like oscillators
Creators: name: Thygesen, A. O.
name: Bruntt, H.
name: Chaplin, W. J.
name: Basu, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The NASA Kepler mission has been continuously monitoring the same field of the sky since the successful launch in March 2009, providing high-quality stellar lightcurves that are excellent data for asteroseismology, far superior to any other observations available at the present. In order to make a meaningful analysis and interpretation of the asteroseismic data, accurate fundamental parameters for the observed stars are needed. The currently available parameters are quite uncertain as illustrated by e.g. Thygesen et al. (A&A 543, A160, 2012), who found deviations as extreme as 2.0 dex in [Fe/H] and log g, compared to catalogue values. Thus, additional follow-up observations for these targets are needed in order to put firm limits on the parameter space investigated by the asteroseismic modellers. Here, we propose a metod for deriving accurate metallicities of main sequence and subgiant solar-like oscillators from medium resolution spectra with a moderate S/N. The method takes advantage of the additional constraints on the fundamental parameters, available from asteroseismology and multi-color photometry. The approach enables us to reduce the analysis overhead significantly when doing spectral synthesis, which in turn will increases the efficiency of follow-up observations.
description: 3 pages, 2 figures. Proceedings from Asteroseismology of Stellar Populations in the Milky Way 2013 to appear in 'Astrophysics and Space Science Proceedings'
title: Population growth and development of Liposcelis obscurus Broadhead (Psocodea: Liposcelididae) at constant temperatures and relative humidities
Creators: name: Opit, George
name: Ocran, Abena
name: Shakya, Kandara
Publisher: name: Julius Kühn-Institut
Year: 2018

description: The effects of nine temperatures (22.5, 25, 27.5, 30, 32.5, 35, 37.5, 40, and 42.5°C) and four RHs (43, 55, 63, and 75%) on the population growth and development of the parthenogenetic Liposcelis obscurus Broadhead (Psocodea: Liposcelididae) were investigated in laboratory studies. Results showed that L. obscurus did not survive at 43% RH at all temperatures tested. At 55% RH, L. obscurus survived at 22.5, 25, and 27.5°C; none survived at 42.5°C and =63% RH. Liposcelis obscurus survived and the population increased 56–fold from an initial population of five adult females at 42.5°C and =75% RH. Population growth was highest at 40°C and 75% RH, where population increase was 215-fold. Liposcelis obscurus has three-to-five nymphal instars, and the percentages of third, fourth, and fifth instars were 52, 41, and 7%, respectively. Temperature-dependent developmental equations were developed for L. obscurus eggs, individual nymphal, combined nymphal, and combined immature stages. Liposcelis obscurus populations grew much faster at 30–42.5oC and 75% RH. These data provide a better understanding of L. obscurus population dynamics, and can be used to develop effective management strategies for this psocid.
description: Julius-Kühn-Archiv, Nr. 463, Vol.1 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018
On effective mass of a photon in a strong magnetic field
Creators: name: Katkov, V. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For the magnetic field in order of the Schwinger critical value or much larger it, the effective mass of a real photon with a preset polarization is investigated in the energy region including two lower creation thresholds of electron and positron on Landau levels. In the high-energy range, when the number of thresholds is large, the quasiclassical approach is used.
Structural phase transitions in Pr$_{1-x}$La$_{x}$AlO$_{3}$: Heat capacity and x-ray scattering studies
Creators: name: Tachibana, Makoto
name: Fritsch, Katharina
name: Gaulin, Bruce D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Structural phase transitions in Pr$_{1-x}$La$_x$AlO$_3$ (0 $\leq x\leq$ 1) single crystals have been studied through heat capacity and high-resolution x-ray scattering measurements. For PrAlO$_3$, the heat capacity shows a sharp first-order peak at the rhombohedral to orthorhombic transition, while a classical mean-field anomaly is observed at the orthorhombic to monoclinic transition at lower temperatures. The transition temperature and the heat capacity anomaly of the two transitions diminish with increasing $x$, and only a single rhombohedral to monoclinic transition is observed for $x = 0.8$. Although this latter transition is required by group theory to be first order, no such evidence is found in the heat capacity and x-ray scattering measurements. Instead, the results are consistent with mean-field criticality, with a small distribution of transition temperature originating from weak disorder.
description: 22 pages, 6 figures
A comparison between different cycle decompositions for Metropolis dynamics
Creators: name: Cirillo, Emilio N. M.
name: Nardi, Francesca R.
name: Sohier, Julien
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In the last decades the problem of metastability has been attacked on rigorous grounds via many different approaches and techniques which are briefly reviewed in this paper. It is then useful to understand connections between different point of views. In view of this we consider irreducible, aperiodic and reversible Markov chains with exponentially small transition probabilities in the framework of Metropolis dynamics. We compare two different cycle decompositions and prove their equivalence.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 2 (85)]
Creators: name: , Guido
name: Guilielmus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1230
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Guido und sein Bruder Guilielmus belehnen Demeldeus de Culora und genannte Personen mit Ländereien und Gütern aus dem väterlichen Erbe.
Protein accumulation in the endoplasmic reticulum as a non-equilibrium phase transition
Creators: name: Budrikis, Z.
name: Costantini, G.
name: La Porta, C. A.
name: Zapperi, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Several neurological disorders are associated with the aggregation of aberrant proteins, often localized in intracellular organelles such as the endoplasmic reticulum. Here we study protein aggregation kinetics by mean-field reactions and three dimensional Monte carlo simulations of diffusion-limited aggregation of linear polymers in a confined space, representing the endoplasmic reticulum. By tuning the rates of protein production and degradation, we show that the system undergoes a non-equilibrium phase transition from a physiological phase with little or no polymer accumulation to a pathological phase characterized by persistent polymerization. A combination of external factors accumulating during the lifetime of a patient can thus slightly modify the phase transition control parameters, tipping the balance from a long symptomless lag phase to an accelerated pathological development. The model can be successfully used to interpret experimental data on amyloid-\b{eta} clearance from the central nervous system.
title: Circadian rhythm of Liposcelis entomophila and Liposcelis paeta in paddy warehouse
Creators: name: Zhang, Zhenjun
name: Li, Yanyu
name: Wang, Zhongming
name: Cao, Yang
name: Qi, Yanmei
name: Pan, Derong
name: He, Rui
Publisher: name: Julius Kühn-Institut
Year: 2018

description: Booklice is a small but serious stored grain pest, and understanding the circadian rhythm of booklice help to control. In this study, circadian activity of booklice were monitored with sticky traps in the grain bulk surfaces of two warehouses stored paddy rice in two different provinces in China. The results showed that the species of booklice were different and were Liposcelis entomophila, and Liposcelisp paeta for Nanning’s and Zhanjiang’s warehouses respectively. In term of L.entomophila, its activity intensity gradually decreased from 0 am to 12 pm and reached the lowest level of daily activity at 12pm. After this, there was a steady and straight upward trend, and the peak of its activity intensity is reached at 8 pm. Its circadian activity trend can be represented as: y = - 0.971x3 + 21.88x2 - 139.5x + 353.4(x: time; y: quantity of booklice). Over the same period, the activity intensity of L.paeta varied greatly. It gradually increased, reached a peak at 8 am, dropped dramatically at 12 pm and then climbed the second peak at 6 pm.
description: Julius-Kühn-Archiv, Nr. 463, Vol.1 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018
Spin density distribution in open-shell transition metal systems: A comparative post-Hartree-Fock, Density Functional Theory and quantum Monte Carlo study of the CuCl2 molecule
Creators: name: Caffarel, Michel
name: Giner, Emmanuel
name: Scemama, Anthony
name: Ramírez-Solís, Alejandro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a comparative study of the spatial distribution of the spin density (SD) of the ground state of CuCl2 using Density Functional Theory (DFT), quantum Monte Carlo (QMC), and post-Hartree-Fock wavefunction theory (WFT). A number of studies have shown that an accurate description of the electronic structure of the lowest-lying states of this molecule is particularly challenging due to the interplay between the strong dynamical correlation effects in the 3d shell of the copper atom and the delocalization of the 3d hole over the chlorine atoms. It is shown here that qualitatively different results for SD are obtained from these various quantum-chemical approaches. At the DFT level, the spin density distribution is directly related to the amount of Hartree-Fock exchange introduced in hybrid functionals. At the QMC level, Fixed-node Diffusion Monte Carlo (FN-DMC) results for SD are strongly dependent on the nodal structure of the trial wavefunction employed (here, Hartree-Fock or Kohn-Sham with a particular amount of HF exchange) : in the case of this open-shell system, the 3N -dimensional nodes are mainly determined by the 3-dimensional nodes of the singly occupied molecular orbital. Regarding wavefunction approaches, HF and CASSCF lead to strongly localized spin density on the copper atom, in sharp contrast with DFT. To get a more reliable description and shed some light on the connections between the various theoretical descriptions, Full CI-type (FCI) calculations are performed. To make them feasible for this case a perturbatively selected CI approach generating multi-determinantal expansions of reasonable size and a small tractable basis set are employed. Although semi-quantitative, these near-FCI calculations allow to clarify how the spin density distribution evolves upon inclusion of dynamic correlation effects. A plausible scenario about the nature of the SD is proposed.
description: 13 pages, 12 Figures
Protocol to determine the subcellular localization of protein interactions in murine keratinocytes
Creators: name: Müller, Lisa
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 610

description: Protein activities and interactions are determined by their subcellular localization. Elucidating the network of protein-protein interactions at a spatial resolution is essential for understanding the complexity of protein functions, their regulation, and cellular processes. Here, we present a protocol to determine the subcellular localization of protein interactions in non-transformed murine keratinocytes. We describe steps for nucleus/cytoplasm fractionation, immunoprecipitation from these fractions, and immunoblotting. We then detail binding quantification.
Magnetic structure of superconducting Eu(Fe0.82Co0.18)2As2 as revealed by single-crystal neutron diffraction
Creators: name: Jin, W. T.
name: Nandi, S.
name: Xiao, Y.
name: Su, Y.
name: Zaharko, O.
name: Guguchia, Z.
name: Bukowski, Z.
name: Price, S.
name: Jiao, W. H.
name: Cao, G. H.
name: Brueckel, Th.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The magnetic structure of superconducting Eu(Fe0.82Co0.18)2As2 is unambiguously determined by single-crystal neutron diffraction. A long-range ferromagnetic order of the Eu2+ moments along the c-direction is revealed below the magnetic phase transition temperature Tc = 17 K. In addition, the antiferromagnetism of the Fe2+ moments still survives and the tetragonal-to-orthorhombic structural phase transition is also observed, although the transition temperatures of the Fe-spin density wave (SDW) order and the structural phase transition are significantly suppressed to Tn = 70 K and Ts = 90 K, respectively, compared to the parent compound EuFe2As2.We present the microscopic evidences for the coexistence of the Eu-ferromagnetism (FM) and the Fe-SDW in the superconducting crystal. The superconductivity (SC) competes with the Fe-SDW in Eu(Fe0.82Co0.18)2As2.Moreover, the comparison between Eu(Fe1-xCox)2As2 and Ba(Fe1-xCox)2As2 indicates a considerable influence of the rare-earth element Eu on the magnetism of the Fe sublattice.
description: 7 pages, 7 figures, accepted for publication in Physical Review B
Mechanical Properties of Growing Melanocytic Nevi and the Progression to Melanoma
Creators: name: Taloni, Alessandro
name: Alemi, Alexander A.
name: Ciusani, Emilio
name: Sethna, James P.
name: Zapperi, Stefano
name: La Porta, Caterina A. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: Melanocytic nevi are benign proliferations that sometimes turn into malignant melanoma in a way that is still unclear from the biochemical and genetic point of view. Diagnostic and prognostic tools are then mostly based on dermoscopic examination and morphological analysis of histological tissues. To investigate the role of mechanics and geometry in the morpholgical dynamics of melanocytic nevi, we study a computation model for cell proliferation in a layered non-linear elastic tissue. Numerical simulations suggest that the morphology of the nevus is correlated to the initial location of the proliferating cell starting the growth process and to the mechanical properties of the tissue. Our results also support that melanocytes are subject to compressive stresses that fluctuate widely in the nevus and depend on the growth stage. Numerical simulations of cells in the epidermis releasing matrix metalloproteinases display an accelerated invasion of the dermis by destroying the basal membrane. Moreover, we suggest experimentally that osmotic stress and collagen inhibit growth in primary melanoma cells while the effect is much weaker in metastatic cells. Knowing that morphological features of nevi might also reflect geometry and mechanics rather than malignancy could be relevant for diagnostic purposes
Ο ρόλος της συγχορήγησης κετοανάλογων αμινοξέων με δίαιτες χαμηλές σε πρωτεΐνη στη Χρόνια Νεφρική Νόσο
Creators: name: Ζαγαλιώτης, Αναστάσιος Ιωάννης
Publisher: name: Aristotle University of Thessaloniki
Year: 2024
Subjects: Κετοανάλογα αμινοξέων
Χρόνια Nεφρική Nόσος
Χαμηλή πρωτεϊνική πρόσληψη
Ketoanalogues of amino acids
Chronic Kidney Disease
Low-protein diets

description: Η χορήγηση κετοανάλογων αμινοξέων ως συμπλήρωμα σε χαμηλής πρωτεϊνικής πρόσληψης δίαιτες στους ασθενείς με χρόνια νεφρική νόσο αποτελεί πεδίο έρευνας τις τελευταίες δεκαετίες. Για την ακρίβεια πρόκεινται για κετοξέα που αποτελούν πρόδρομες μορφές βασικών αμινοξέων. Η μετατροπή τους σε αυτά συμβαίνει μέσω τρανσαμίνωσης, μια χημική αντίδραση με την οποία λαμβάνουν μια αμινική ομάδα στο μόριο τους εξασφαλίζοντας έτσι την παραγωγή αμινοξέων χωρίς την πρόσθετη επιβάρυνση με φορτίο αζώτου, που είναι ήδη σε περίσσεια στους ασθενείς με Χρόνια Νεφρική Νόσο (ΧΝΝ). Πληθώρα μελετών έχει ερευνήσει τυχόν οφέλη τους σε συνδυασμό με δίαιτες πολύ χαμηλής πρωτεϊνικής πρόσληψης (0.3 γραμμάρια/χιλιόγραμμο) σε ασθενείς με ΧΝΝ με τα αποτελέσματα να είναι θετικά όσον αφορά μεταβολικούς δείκτες όπως η μείωση της ουρίας. Ωστόσο, πολλοί ερευνητές εκφράζουν τη δυσπιστία τους λόγω του κινδύνου υποθρεψίας και καχεξίας που υποκρύπτουν οι συγκεκριμένες δίαιτες. Σκοπός, λοιπόν, αυτής της ανασκόπησης είναι να διερευνήσει και να περιγράψει τις επιδράσεις της λήψης κετοανάλογων αμινοξέων ως συμπλήρωμα σε χαμηλού ή πολύ χαμηλού πρωτεϊνικού φορτίου δίαιτες σε ασθενείς με ΧΝΝ. Για το σκοπό αυτό η συγκεκριμένη ανασκόπηση συμπεριέλαβε μόνο τυχαιοποιημένες μελέτες. Τα σημεία που αναζητήθηκαν ήταν η επίδραση στο ρυθμό σπειραματικής διήθησης, στην καθυστέρηση ένταξης στην αιμοκάθαρση, στα επίπεδα ουρίας και διττανθρακικών, στους δείκτες οστικού μεταβολισμού καθώς και σε ανθρωπομετρικές παραμέτρους.
description: The administration of ketoanalogues of amino acids as a supplement to low-protein diets in patients with chronic kidney disease (CKD) has been a field of research for the last decades. To be precise, they are keto acids, which are precursor forms of essential amino acids. Their conversion to them occurs through transamination, a chemical reaction by which they receive an amino group in their molecule, thus ensuring the production of amino acids without the additional burden of nitrogen load, which is already in excess in patients with CKD. Numerous studies have investigated their possible benefits in combination with very low protein diets (0.3 grams/kilogram) in CKD patients, with positive results in terms of metabolic indicators such as urea reduction. However, many researchers express their disbelief because of the risk of malnutrition and cachexia that these diets carry. Therefore, the aim of this review is to investigate and describe the effects of taking amino acid keto analogues as a supplement to low or very low protein load diets in patients with CKD. This review focused exclusively on randomized studies. The points sought were the effect on glomerular filtration rate, hemodialysis delay, urea and bicarbonate levels, bone metabolism indices, as well as anthropometric parameters.
Mixing properties in the advection of passive tracers via recurrences and extreme value theory
Creators: name: Faranda, Davide
name: Leoncini, Xavier
name: Vaienti, Sandro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this paper we characterize the mixing properties in the advection of passive tracers by exploiting the extreme value theory for dynamical systems. With respect to classical techniques directly related to the Poincaré recurrences analysis, our method provides reliable estimations of the characteristic mixing times and distinguishes between barriers and unstable fixed points. The method is based on a check of convergence for extreme value laws on finite datasets. We define the mixing times in terms of the shortest time intervals such that extremes converge to the asymptotic (known) parameters of the Generalized Extreme Value distribution. Our technique is suitable for applications in the analysis of other systems where mixing time scales need to be determined and limited datasets are available.
description: arXiv admin note: text overlap with arXiv:1107.5972
Second-order Perturbation Formula for Magnetocrystalline Anisotropy using Orbital Angular Momentum Matrix
Creators: name: Kosugi, Taichi
name: Miyake, Takashi
name: Ishibashi, Shoji
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We derive a second-order perturbation formula for an electronic system subject to spin-orbit interactions (SOI). The energy correction originates in the spin-conserving and the spin-flip transitions. The former are represented by the orbital angular momentum (OAM) acquired via the SOI. The latter come from the quantum fluctuation effect. By using our formula, we examine the relativistic electronic structures of a d orbital chain and L1_0 alloys. The appearance of OAM in the chain is understood by using a parabolic-bands model and the exact expressions of the single-particle states. The total energy is found to be accurately reproduced by the formula. The self-consistent fully relativistic first-principles calculations based on the density functional theory are performed for five L1_0 alloys. It is found that the formula reproduces qualitatively the behavior of their exact magnetocrystalline anisotropy (MCA) energies. While the MCA of FePt, CoPt, and FePd originates in the spin-conserving transitions, that in MnAl and MnGa originates in the spin-flip contributions. For FePt, CoPt, and FePd, the tendency of the MCA energy with the variation in the lattice constant obeys basically that of the spin-flip contributions. These results indicate that not only the anisotropy of OAM, but also that of spin-flip contributions must be taken into account for the understanding of the MCA of the L1_0 alloys.
description: 9 figures
title: Development of a suitable rearing media for Tribolium castaneum
Creators: name: Wijerathne, Karyawasam Bovithanthri Thanushi Thamodhi
name: Karunarathne, Edirimunhie Vishwa Udani Perera
name: Dissanayaka, Dissanayaka Mudiyanselage Saman Kumara
name: Wolly Wijayaratne, Leanage Kanaka
Publisher: name: Julius Kühn-Institut
Year: 2018

description: Tribolium castaneum is a serious pest of cereal flour and flour-based products, and thus a test insect in storedproduct research. The composition of the rearing medium affects the progeny production, their performance and handling efficacy. The objective of this research was to develop a suitable rearing media for T. castaneum. The research tested wheat flour, crushed broiler feed, crushed dog feed and corn flour alone and in different combinations. Twenty adults of T. castaneum were introduced to each medium separately, and removed after 2 weeks. The progeny adults emerged in each rearing medium was determined. The progeny produced differed with the food medium. In general, the rearing media having a combination of ingredients produced more progeny than a particular component alone. Different ratios of these food ingredients need to be tested to further increase the progeny production in T. castaneum and to determine the efficacy of these media on the progeny production in other species.
description: Julius-Kühn-Archiv, Nr. 463, Vol,1 (2018): Proceedings of the 12th International Working Conference on Stored Product Protection (IWCSPP) in Berlin, Germany, October 7-11, 2018
From Modeled Topics to Areas of Law: A Comparative Analysis of Types of Proceedings in the German Federal Constitutional Court
Creators: name: Wendel, Luisa
name: Shadrova, Anna
name: Tischbirek, Alexander
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: Constitutional Law, Federal Constitutional Court; areas of law; Topic Modeling; computer-assisted methods
subject: 340 Recht

description: Quantitative approaches are gaining popularity in German legal research. The analysis of large corpora of legal text may be supported by text mining methods. In this study, we employ topic modeling—which aims at retrieving the “topics” of a corpus—to identify words related to certain areas of law present in the case law of the German Federal Constitutional Court (FCC). This information is then evaluated by legal experts and used to show significant content-related differences between the two most frequent types of proceedings before the FCC. Technical and somewhat unstable areas of law, such as tax law, social law, and civil service law, are significantly overrepresented in referrals for judicial review, whereas areas of law characterized by well-developed case law and judicial doctrine appear substantially more often in constitutional complaints. This insight may come as a surprise due to the fact that the Court’s material scope of review is identical in both types of proceedings. Our considerations do not, however, seem to apply to private law. Though we recognize the methodological and epistemological concerns regarding the heuristic nature of topic modeling, this study exemplifies its productive use in complementing, rather than replacing, more traditional techniques of analysis in legal studies.
Spin Drift in Highly Doped n-type Si
Creators: name: Kameno, Makoto
name: Ando, Yuichiro
name: Shinjo, Teruya
name: Koike, Hayato
name: Sasaki, Tomoyuki
name: Oikawa, Tohru
name: Suzuki, Toshio
name: Shiraishi, Masashi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A quantitative estimation of spin drift velocity in highly doped n-type silicon (Si) at 8 K is presented in this letter. A local two-terminal Hanle measurement enables the detection of a modulation of spin signals from the Si as a function of an external electric field, and this modulation is analyzed by using a spin drift-diffusion equation and an analytical solution of the Hanle-type spin precession. The analyses reveal that the spin drift velocity is linearly proportional to the electric field. The contribution of the spin drift effect to the spin signals is crosschecked by introducing a modified nonlocal four-terminal method.
description: 16 pages, 3 figures
SELF-CARE BEHAVIOR AND ASSOCIATED FACTORS AMONG CANCER PATIENTS WHO ARE ON CHEMOTHERAPY TREATMENT AT TIKUR ANBESA SPECIALIZED HOSPITAL.
Creators: name: TSIGE GEBRE
Publisher: name: Zenodo
Year: 2018

description: Background: Cancer affects millions of people in the world each year, leading many to face the difficult road of chemotherapy. When cancer patients are ill-prepared for chemotherapy treatments, they often tend to envision the worst-case scenarios, possibly making the anticipation more difficult than the event itself. In Ethiopia evidence on self-care behavior on chemotherapy and associated factors is limited. So this study is aimed to fill the gap. Objectives: To assess self-care behavior and associated factors among cancer patients who are on chemotherapy treatment at Tikur Anbessa Specialized Hospital Addis Ababa, Ethiopia 2018.
Prospects of Turbulence Studies in High-Energy Density Laser-Generated Plasma: Numerical Investigations in Two Dimensions
Creators: name: Handy, Timothy
name: Plewa, Tomasz
name: Drake, R. Paul
name: Zhiglo, Andrey
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate the possibility of generating and studying turbulence in plasma by means of high-energy density laser-driven experiments. Our focus is to create supersonic, self-magnetized turbulence with characteristics that resemble those found in the interstellar medium (ISM). We consider a target made of a spherical core surrounded by a shell made of denser material. The shell is irradiated by a sequence of laser pulses sending inward-propagating shocks that convert the inner core into plasma and create turbulence. In the context of the evolution of the ISM, the shocks play the role of supernova remnant shocks and the core represents the ionized interstellar medium. We consider the effects of both pre-existing and self-generating magnetic fields and study the evolution of the system by means of two-dimensional numerical simulations. We find that the evolution of the turbulent core is generally, subsonic with rms-Mach number $M_t\approx 0.2$. We observe an isotropic, turbulent velocity field with an inertial range power spectra of $P(k)\propto k^{-2.3}$. We account for the effects of self-magnetization and find that the resulting magnetic field has characteristic strength $\approx 3\times 10^{4}$ G. The corresponding plasma beta is $\approx 1\times 10^{4}$--$1\times 10^{5}$, indicating that the magnetic field does not play an important role in the dynamical evolution of the system. The natural extension of this work is to study the system evolution in three-dimensions, with various laser drive configurations, and targets with shells and cores of different masses. The latter modification may help to increase the turbulent intensity and possibly create transonic turbulence. One of the key challenges is to obtain transonic turbulent conditions in a quasi-steady state environment.
description: High Energy Density Physics, in press
Agent network toplogies and framework
Creators: name: Zhang, Haolan
Publisher: name: figshare
Year: 2023
Subjects: Autonomous agents and multiagent systems
Evolutionary computation
Artificial life and complex adaptive systems
Distributed systems and algorithms
Mobile computing
Concurrent/parallel systems and technologies
Distributed computing and systems software not elsewhere classified
Networking and communications
Service oriented computing
Decision support and group support systems
Information systems development methodologies and practice
Information systems not elsewhere classified
Knowledge and information management
Automated software engineering
Software architecture
Computational complexity and computability
Applied computing not elsewhere classified

description: The communication topologies for multiagent systems.
On the Topology Maintenance of Dynamic P2P Overlays through Self-Healing Local Interactions
Creators: name: Ferretti, Stefano
Publisher: name: arXiv
Year: 2014
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: This paper deals with the use of self-organizing protocols to improve the reliability of dynamic Peer-to-Peer (P2P) overlay networks. We present two approaches, that employ local knowledge of the 2nd neighborhood of nodes. The first scheme is a simple protocol requiring interactions among nodes and their direct neighbors. The second scheme extends this approach by resorting to the Edge Clustering Coefficient (ECC), a local measure that allows to identify those edges that connect different clusters in an overlay. A simulation assessment is presented, which evaluates these protocols over uniform networks, clustered networks and scale-free networks. Different failure modes are considered. Results demonstrate the viability of the proposal.
description: A revised version of the paper appears in Proc. of the IFIP Networking 2014 Conference, IEEE, Trondheim, (Norway), June 2014
TRADE AMONG COMESA COUNTRIES: A GRAVITY APPROACH
Creators: name: EDEN KASSAYE
Publisher: name: Zenodo
Year: 2008

description: This study aimed at examining whether Common Market for Eastern and Southern Africa (COMESA) is effective in promoting trade among its member states. The study uses gravity model to estimate the trade intensity among its members for the year 1981 and 1999. The gravity model is applied to trade intensity indices and the estimation of the gravity equation is carried out using Tobit regression. The empirical results indicate that the standard gravity model variables have the expected effect on the trade linkage in COMESA. The main focus of the study is, on the estimation of COMESA, which is found to be insignificant in promoting trade among members. A comparison of the two periods result reveals a very similar pattern before and after the formation of COMESA. Thus, the result confirms the ineffectiveness of COMESA in enlarging trade among its members. Accordingly, the study suggests the requirement of joint effort of the member countries in coordinating, harmonizing and implementing policies, improving their human and institutional capabilities, increasing production capacity and expanding markets by involving active participation of the private sector so as to raise intra-COMESA trade.
Bayesian Neural Networks for Genetic Association Studies of Complex Disease
Creators: name: Beam, Andrew L.
name: Motsinger-Reif, Alison
name: Doyle, Jon
Publisher: name: arXiv
Year: 2014
Subjects: subject: Genomics (q-bio.GN)
subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Discovering causal genetic variants from large genetic association studies poses many difficult challenges. Assessing which genetic markers are involved in determining trait status is a computationally demanding task, especially in the presence of gene-gene interactions. A non-parametric Bayesian approach in the form of a Bayesian neural network is proposed for use in analyzing genetic association studies. Demonstrations on synthetic and real data reveal they are able to efficiently and accurately determine which variants are involved in determining case-control status. Using graphics processing units (GPUs) the time needed to build these models is decreased by several orders of magnitude. In comparison with commonly used approaches for detecting genetic interactions, Bayesian neural networks perform very well across a broad spectrum of possible genetic relationships while having the computational efficiency needed to handle large datasets.