cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effects of hadron-quark phase transition on properties of Neutron Stars
Creators: name: Sen, Debashree
name: Jha, T. K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possible scenario of deconfinement of hyperon rich hadronic matter to quark matter at high densities and the resulting hybrid star (HS) properties are analyzed. In the relativistic mean-field framework, we construct the equation of state (EoS) of hadronic matter using the effective chiral model while the pure quark matter is described using the MIT Bag model. We revisit the hyperon puzzle and analyze the possibility of hadron-quark phase transition with proper choice of the bag constant. In static condition the maximum mass of the resultant HSs are in good agreement with the recent observational bounds on the same from high mass pulsars such as PSR J1614-2230 and PSR J0348+0432. On invoking the phenomenon of phase transition, the radius of canonical mass ($R_{1.4}$) and value of $R_{1.6}$ predicted by the model lie within the range prescribed from binary neutron star (BNS) merger detected by the LIGO-Virgo collaboration in 2017. The surface redshift obtained for the HSs also satisfy the constraints from pulsars RX J0720.4-3125 and 1E 1207.4-5209. It is noteworthy that unlike several other works, we add no modifications to the original form of the Bag model to satisfy these recent observational and empirical constraints on NS properties. We also discuss the rotational aspects of the HSs by calculating the properties like rotational mass, radius, energy density, moment of inertia at different angular velocities. The maximum bound on rotational frequency from the rapidly rotating pulsars like PSR B1937+21 and PSR J1748-2446ad are satisfied with the HS configuration. We also test the universality of our hybrid EoS in terms of normalized moment of inertia.
description: 28 pages, 11 figures
Self-Averaging and On-line Learning
Creators: name: Reents, G.
name: Urbanczik, R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Conditions are given under which one may prove that the stochastic dynamics of on-line learning can be described by the deterministic evolution of a finite set of order parameters in the thermodynamic limit. A global constraint on the average magnitude of the increments in the stochastic process is necessary to ensure self-averaging. In the absence of such a constraint, convergence may only be in probability.
description: 10 pages
Effects of non-thermal tails in Maxwellian electron distributions on synchrotron and Compton processes
Creators: name: Wardzinski, Grzegorz
name: Zdziarski, Andrzej A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate how the presence of a non-thermal tail beyond a Maxwellian electron distribution affects the synchrotron process as well as Comptonization in plasmas with parameters typical for accretion flows onto black holes. We find that the presence of the tail can significantly increase the net (after accounting for self-absorption) cyclo-synchrotron emission of the plasma, which emission then provides seed photons for Compton upscattering. Thus, the luminosity in the thermally-Comptonized spectrum is enhanced as well. The importance of these effects increases with both increasing Eddington ratio and the black hole mass. The enhancement of the Comptonized synchrotron luminosity can be as large as by factors of $\sim 10^3$ and $\sim 10^5$ for stellar and supermassive black holes, respectively, when the energy content in the non-thermal tail is 1 per cent. The presence of the tail only weakly hardens the thermal Comptonization spectrum but it leads to formation of a high-energy tail beyond the thermal cut-off, which two effects are independent of the nature of the seed photons. Since observations of high-energy tails in Comptonization spectra can constrain the non-thermal tails in the electron distribution and thus the Comptonized synchrotron luminosity, they provide upper limits on the strength of magnetic fields in accretion flows. In particular, the measurement of an MeV tail in the hard state of Cyg X-1 by McConnell et al. implies the magnetic field strength in this source to be at most an order of magnitude below equipartition.
description: 10 pages, 9 postscript figures. Accepted to MNRAS
Crossover from Fermi liquid to Wigner molecule behavior in quantum dots
Creators: name: Egger, R.
name: Haeusler, W.
name: Mak, C. H.
name: Grabert, H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The crossover from weak to strong correlations in parabolic quantum dots at zero magnetic field is studied by numerically exact path-integral Monte Carlo simulations for up to eight electrons. By the use of a multilevel blocking algorithm, the simulations are carried out free of the fermion sign problem. We obtain a universal crossover only governed by the density parameter $r_s$. For $r_s>r_c$, the data are consistent with a Wigner molecule description, while for $r_s
description: 4 pages RevTeX, 3 figures, corrected Table
Effect of spins on the quantum entropy of black holes
Creators: name: Jing, Jiliang
name: Yan, Mu-Lin
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By using the Newman-Penrose formalism and 't Hooft brick-wall model, the quantum entropies of the Kerr-Newman black hole due to the Dirac and electromagnetic fields are calculated and the effects of the spins of the photons and Dirac particles on the entropies are investigated. It is shown that the entropies depend only on the square of the spins of the particles and the contribution of the spins is dependent on the rotation of the black hole, except that different fields obey different statistics.
description: 10 pages, no figure, to appear in Phys. Rev. D
Limitations of Source-Filter Coupling In Phonation
Creators: name: Mohapatra, Debasish Ray
name: Fels, Sidney
Publisher: name: arXiv
Year: 2018
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The coupling of vocal fold (source) and vocal tract (filter) is one of the most critical factors in source-filter articulation theory. The traditional linear source-filter theory has been challenged by current research which clearly shows the impact of acoustic loading on the dynamic behavior of the vocal fold vibration as well as the variations in the glottal flow pulses shape. This paper outlines the underlying mechanism of source-filter interactions; demonstrates the design and working principles of coupling for the various existing vocal cord and vocal tract biomechanical models. For our study, we have considered self-oscillating lumped-element models of the acoustic source and computational models of the vocal tract as articulators. To understand the limitations of source-filter interactions which are associated with each of those models, we compare them concerning their mechanical design, acoustic and physiological characteristics and aerodynamic simulation.
description: 2 pages, 2 figures
Data from: Mediterranean bioclimate zones of the world for the understanding of fire regimes
Creators: name: Paula, Susana
name: Ramírez, Diego
name: Estay, Sergio
name: Pausas, Juli G.
Publisher: name: Zenodo
Year: 2024
Subjects: fire activity
aridity index
net primary productivity
soil fertility
Mediterranean Biome

description: Aim: To quantify the role of soil fertility in the spatial variability of fire activity and to identify the mechanisms that drive this variability.

Location: The five Mediterranean-type climate regions of the world.

Time period: 2002 – present.

Major taxa studied: Terrestrial plants.

Methods: We compiled remotely sensed data on fire activity, climate, net primary productivity, and chemical soil properties for bioclimatically homogeneous zones within the five Mediterranean-type climate regions of the world. Putative direct and indirect effects of the environmental variables on fire activity were evaluated through structural equation modelling.

Results: Fire activity increased with net primary productivity, as expected for ecosystems with fuel-limited fire regimes. Soil acidity and the concentration of exchangeable aluminium also increased fire activity, supporting the idea that low fertility promotes plant characteristics that favour fire initiation and spread.

Main conclusions: Our research supports a positive relationship between wildfires and low soil fertility in Mediterranean-type climate regions across the globe. Therefore, soil fertility should be incorporated into models predicting future fires in a warming world.
description: Funding provided by: Agencia Nacional de Investigación y DesarrolloCrossref Funder Registry ID: https://ror.org/02ap3w078Award Number: 1190999
Funding provided by: Agencia Nacional de Investigación y DesarrolloCrossref Funder Registry ID: https://ror.org/02ap3w078Award Number: FB210006
Funding provided by: Anglo American*Crossref Funder Registry ID: Award Number:
Funding provided by: Agencia Nacional de Investigación y DesarrolloCrossref Funder Registry ID: https://ror.org/02ap3w078Award Number: FB0002
Funding provided by: Generalitat ValencianaCrossref Funder Registry ID: https://ror.org/0097mvx21Award Number: 2021/040
Intrinsic frustration effects in anisotropic superconductors
Creators: name: Guinea, F.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Lattice distortions in which the axes are locally rotated provide an intrinsic source of frustration in anisotropic superconductors. A general framework to study this effect is presented. The influence of lattice defects and phonons in $d$ and $s+d$ layered superconductors is studied.
description: enlarged version
Additional file 3: of FlexiBAC: a versatile, open-source baculovirus vector system for protein expression, secretion, and proteolytic processing
Creators: name: RĂŠgis Lemaitre
name: Bogdanova, Aliona
name: Borgonovo, Barbara
name: Woodruff, Jeffrey
name: Drechsel, David
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary Materials and Methods. A detailed protocol for using FlexiBAC and more information on plasmid and bacmid construction. (DOCX 39 kb)
A stochastic behavioral model and a `microscopic' foundation of evolutionary game theory
Creators: name: Helbing, Dirk
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A stochastic model for behavioral changes by imitative pair interactions of individuals is developed. `Microscopic' assumptions on the specific form of the imitative processes lead to a stochastic version of the game dynamical equations. That means, the approximate mean value equations of these equations are the game dynamical equations of evolutionary game theory. The stochastic version of the game dynamical equations allows the derivation of covariance equations. These should always be solved along with the ordinary game dynamical equations. On the one hand, the average behavior is affected by the covariances so that the game dynamical equations must be corrected for increasing covariances. Otherwise they may become invalid in the course of time. On the other hand, the covariances are a measure for the reliability of game dynamical descriptions. An increase of the covariances beyond a critical value indicates a phase transition, i.e. a sudden change in the properties of the considered social system. The applicability and use of the introduced equations are illustrated by computational results for the social self-organization of behavioral conventions.
description: For related work see http://www.theo2.physik.uni-stuttgart.de/helbing.html
A Volterra-series approach to stochastic nonlinear dynamics: The Duffing oscillator driven by white noise
Creators: name: Belousov, Roman
name: Berger, Florian
name: Hudspeth, A. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Duffing oscillator is a paradigm of bistable oscillatory motion in physics, engineering, and biology. Time series of such oscillations are often observed experimentally in a nonlinear system excited by a spontaneously fluctuating force. One is then interested in estimating effective parameter values of the stochastic Duffing model from these observations--a task that has not yielded to simple means of analysis. To this end we derive theoretical formulas for the statistics of the Duffing oscillator's time series. Expanding on our analytical results, we introduce methods of statistical inference for the parameter values of the stochastic Duffing model. By applying our method to time series from stochastic simulations, we accurately reconstruct the underlying Duffing oscillator. This approach is quite straightforward--similar techniques are used with linear Langevin models--and can be applied to time series of bistable oscillations that are frequently observed in experiments.
description: 8 pages, 4 figures
Effective Field Theory for Layered Quantum Antiferromagnets with Non-Magnetic Impurities
Creators: name: Chen, Y. C.
name: Neto, A. H. Castro
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We propose an effective two-dimensional quantum non-linear sigma model combined with classical percolation theory to study the magnetic properties of site diluted layered quantum antiferromagnets like La$_{2}$Cu$_{1-x}$M$_x$O$_{4}$ (M$=$Zn, Mg). We calculate the staggered magnetization at zero temperature, $M_s(x)$, the magnetic correlation length, $ξ(x,T)$, the NMR relaxation rate, $1/T_1(x,T)$, and the Néel temperature, $T_N(x)$, in the renormalized classical regime. Due to quantum fluctuations we find a quantum critical point (QCP) at $x_c \approx 0.305$ at lower doping than the two-dimensional percolation threshold $x_p \approx 0.41$. We compare our results with the available experimental data.
description: Final version accepted for publication as a Rapid Communication on Physical Review B. A new discussion on the effect of disorder in layered quantum antiferromagnets is included
High contrast quantum imaging with time-gated fluorescence detection
Creators: name: Chen, Xiang-Dong
name: Zheng, Yu
name: Du, Bo
name: Li, Deng-Feng
name: Li, Shen
name: Dong, Yang
name: Guo, Guang-Can
name: Sun, Fang-Wen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Optical detection of spin state has been widely used for the solid state spin qubit in the application of quantum information processing. The signal contrast determines the accuracy of quantum state manipulation, sensitivity of quantum sensing and resolution of quantum imaging. Here, we demonstrated a time-gated fluorescence detection method for enhancing the spin state signal contrast of nitrogen vacancy (NV) center in diamond. By adjusting the delay between time gate and the excitation laser pulse, we improved both the signal contrast and signal-to-noise ratio for NV spin detection. An enhancement ratio of 1.86 times was reached for the signal contrast. Utilizing the time-gated fluorescence detection, we further demonstrated a high contrast quantum imaging of nanoparticle's stray magnetic field. Without any additional manipulation of the quantum state, we expect that this method can be used to improve the performance of various applications with NV center.
Principal Component Analysis on the Philippine Health Data
Creators: name: Carillo, Marites F.
name: Largo, Fe F.
name: Ceballos, Roel F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: 62H25

description: This study was conducted to determine the structures of a set of n correlated variables and creates a new set of uncorrelated indices which are the underlying components of the Philippine health data.The data utilized in this study was the 2009 Philippine Health Data which was made available by National Statistical Coordination Board(NSCB) in its 2009 publication.The publication contains the health data of 81 provinces of the Philippines consisting of ten system-related determinants which was considered as the variables in this study. From the ten health system-related determinants, it was found out that there are three significant underlying components that could summarize the Philippine health data. The first component was named as importance of safe water supply and emphasis on child heat while the second and third component were named as importance of Barangay Health Stations, government health workers and emphasis on pregnant women's health and emphasis on women's health, respectively. These three components jointly account for a total of 73.01% of the total variance explained by the component.
A wide field survey at the Northern Ecliptic Pole: II. Number counts and galaxy colours in B_j, R, and K
Creators: name: Kuemmel, M. W.
name: Wagner, S. J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a medium deep survey carried out in the three filters B_j, R and K. The survey covers homogeneously the central square degree around the Northern Ecliptic Pole (NEP) down to a completeness limit of 24.25, 23.0 and 17.5mag in B_j, R and K, respectively. While the near infrared data have been presented in the first paper of this series, here we concentrate on the optical data and the results based on the combined B_jRK-data. The unique combination of area and depth in our survey allows to perform a variety of investigations based on homogeneous material covering more than ten magnitudes in apparent brightness. We analyze the number counts for point-like and extended sources in B_j and R to determine the slopes in dlogN/dm and to test for possible breaks therein. While we can confirm the slopes found in previous works with a higher statistical significance, the largest uncertainty remaining for the amplitudes is galactic extinction. We determine the colour distributions of galaxies in B_j-R and R-K down to B_j=24.0 and K=18.0mag, respectively. The distributions in both colours are modeled using galaxy spectral evolution synthesis. We demonstrate that the standard models of galaxy evolution are unable to reproduce the steady reddening trend in R-K despite flawless fits to the colour distributions in the optical (B_j-R). The B_jRK data collected over a large area provides the opportunity to select rare objects like candidates for high-redshift galaxies and extremely red objects (EROs, R-K>5.0) and to determine their surface density. Our EROs are selected at an intermediate magnitude range and contain contribution from both galactic as well as extragalactic sources. At K<16.5mag, where a morphological classification is possible, the stellar component dominates the sample.
description: Accepted for A&A, 14 pages, 10 figures
Additional file 2: of Barriers and facilitators with medication use during the transition from hospital to home: a qualitative study among patients
Creators: name: Daliri, Sara
name: Bekker, Charlotte
name: Buurman, Bianca
name: Reimer, Wilma Scholte Op
name: Bemt, Bart
name: ĂArkit, Fatma Karapinar
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Computational Biology

description: Table S3: Demographic characteristics of each focus group participant. (DOCX 21 kb)
Protein design in a lattice model of hydrophobic and polar amino acids
Creators: name: Micheletti, C.
name: Seno, F.
name: Maritan, A.
name: Banavar, J. R.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: A general strategy is described for finding which amino acid sequences have native states in a desired conformation (inverse design). The approach is used to design sequences of 48 hydrophobic and polar aminoacids on three-dimensional lattice structures. Previous studies employing a sequence-space Monte-Carlo technique resulted in the successful design of one sequence in ten attempts. The present work also entails the exploration of conformations that compete significantly with the target structure for being its ground state. The design procedure is successful in all the ten cases.
description: RevTeX, 12 pages, 1 figure
Universality at integer quantum Hall transitions
Creators: name: Yang, Kun
name: Shahar, D.
name: Bhatt, R. N.
name: Tsui, D. C.
name: Shayegan, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report in this paper results of experimental and theoretical studies of transitions between different integer quantum Hall phases, as well as transition between the insulating phase and quantum Hall phases at high magnetic fields. We focus mainly on universal properties of the transitions. We demonstrate that properly defined conductivity tensor is universal at the transitions. We also present numerical results of a non-interacting electron model, which suggest that the Thouless conductance is universal at integer quantum Hall transitions, just like the conductivity tensor. Finite temperature and system size effects near the transition point are also studied.
description: 20 pages, 15 figures
Seeing relativity -- II. Revisiting and visualizing the Reissner-Nordström metric
Creators: name: Riazuelo, Alain
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we study some features of the Reissner-Nordström metric both from an analytic and a visual point of view. We perform an accurate ray tracing and study of null geodesics in various situations. Among the issues we focus on are (i) the comparison with the Schwarzschild case, (ii) the naked singularity case, where, if the electric charge is not too large, some dark shell appears on images despite there is no horizon in the metric, and (iii) the wormhole crossing case, i.e., a visual exploration of the maximal analytic extension of the metric.
description: Moderately big paper (61 figs, 50 Mb); Submitted to IJMPD
Dynamical properties of a randomly diluted neural network with variable activity
Creators: name: Grosskinsky, Stefan
Publisher: name: arXiv
Year: 1999
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The subject of study is a neural network with binary neurons, randomly diluted synapses and variable pattern activity. We look at the system with parallel updating using a probabilistic approach to solve the one step dynamics with one condensed pattern. We derive restrictions on the storage capacity and the mutual information content occuring during the retrieval process. Special focus is on the constraints on the threshold for optimal performance. We also look at the effect of noisy updating, giving a dynamical version of the critical temperature, the corresponding threshold and an approximation for the time evolution for small temperatures. The description is applicable to the whole retrieval process in the limit of strong dilution. The analysis is carried out as exactly as possible and over the full parameter ranges, generalizing some former results.
description: 15 pages, 5 figures, to be published in Journal of Physics A
On the Neutrino Flares from the Direction of TXS 0506+056
Creators: name: Halzen, Francis
name: Kheirandish, Ali
name: Weisgarber, Thomas
name: Wakely, Scott P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: For the first time since the discovery of high-energy cosmic neutrinos by IceCube, a multimessenger campaign identified a distant gamma ray blazar, TXS 0506+056, as the source of a high-energy neutrino. The extraordinary brightness of the blazar despite its distance suggests that it may belong to a special class of sources that produce cosmic rays. Moreover, over the last 10 years of data, the high-energy neutrino flux from the source is dominated by a previous neutrino flare in 2014, which implies that flaring sources strongly contribute to the cosmic ray flux. We investigate the contribution of this subclass of flaring blazars to the high-energy neutrino flux and examine its connection to the very high energy cosmic ray observations. We also study the high energy gamma ray emission accompanying the neutrino flare and show that the sources must be more efficient neutrino than gamma ray emitters. This conclusion is supported by the gamma-ray observations during the 2014 neutrino flare.
Fatou-Type Theorems and Boundary Value Problems for Elliptic Systems in the Upper Half-Space
Creators: name: Martell, José María
name: Mitrea, Dorina
name: Mitrea, Irina
name: Mitrea, Marius
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 31A20, 35C15, 35J57, 42B37, 46E30, 35B65, 42B25, 42B30, 42B35

description: We survey recent progress in a program aimed at proving general Fatou-type results and establishing the well-posedness of a variety of boundary value problems in the upper half-space ${\mathbb{R}}^n_{+}$ for second-order, homogeneous, constant complex coefficient, elliptic systems $L$, formulated in a manner that emphasizes pointwise nontangential boundary traces of the null-solutions of $L$ in ${\mathbb{R}}^n_{+}$.
description: To appear in Algebra i Analiz 2019
MOESM2 of Overexpression and Tyr421-phosphorylation of cortactin is induced by three-dimensional spheroid culturing and contributes to migration and invasion of pancreatic ductal adenocarcinoma (PDAC) cells
Creators: name: Stock, Katharina
name: Borrink, Rebekka
name: Jan-Henrik Mikesch
name: Hansmeier, Anna
name: Rehkämper, Jan
name: Trautmann, Marcel
name: Wardelmann, Eva
name: Hartmann, Wolfgang
name: Sperveslage, Jan
name: Steinestel, Konrad
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 2. Additional Materials and methods.
Electrostatic in Reissner-Nordstrom space-time with a conical defect
Creators: name: Spinelly, J.
name: Bezerra, V. B.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We calculate the electrostatic potential generated by a point charge in the space-time of Reissner-Nordstrom with a conical defect. An expression for the self-energy is also presented.
description: 7 pages, LATEX file
Blue (In,Ga)N Light-Emitting Diodes with Buried n+-p+ Tunnel Junctions by Plasma-Assisted Molecular Beam Epitaxy
Creators: name: Cho, YongJin
name: Bharadwaj, Shyam
name: Hu, Zongyang
name: Nomoto, Kazuki
name: Jahn, Uwe
name: Xing, Huili Grace
name: Jena, Debdeep
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Blue light-emitting diodes (LEDs) consisting of a buried n+-p+ GaN tunnel junction, (In,Ga)N multiple quantum wells (MQWs) and a n+-GaN top layer are grown on single-crystal Ga-polar n+-GaN bulk wafers by plasma-assisted molecular beam epitaxy. The (In,Ga)N MQW active regions overgrown on the p+-GaN show chemically abrupt and sharp interfaces in a wide range of compositions and are seen to have high structural and optical properties as verified by X-ray diffraction and spatially resolved cathodoluminescence measurements. The processed LEDs reveal clear rectifying behavior with a low contact and buried tunnel junction resistivity. By virtue of the top n+-GaN layer with a low resistance, excellent current spreading in the LEDs is observed at low currents in this device structure. A few of new device possibilities based on this unique design are discussed.
Suction side roughness effects on film cooling heat transfer on a turbine vane
Creators: name: Rutledge, James Lloyd
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Roughness placement
Turbine vane
Film cooling
Adiabatic effectiveness
Heat transfer

description: An experimental study was conducted in a simulated three vane linear cascade to determine the effects of surface roughness and film cooling on the heat transfer coefficient distribution in the region downstream of the first row of suction side coolant holes. Suction side film cooling was operated in the range 0 = M = 1.4. The showerhead was tested at Msh = 1.6. In addition to the completely smooth condition, simulated airfoil roughness was used upstream of the coolant holes, downstream of the coolant holes, and both upstream and downstream of the coolant holes. Two levels of mainstream turbulence intensity were tested. The heat transfer measurements were conducted by application of a uniform heat flux in the region downstream of the coolant holes. The resulting surface temperature distributions were measured with infrared thermography. Because the upstream region was unheated, the influence of film cooling on the heat transfer coefficient was due to only to hydrodynamic effects and not thermal effects. The coolant to mainstream density ratio of the majority of the experiments was unity; however, a single experiment was conducted at a density ratio of DR = 1.6 to determine how the coolant to mainstream density ratio affects heat transfer. Net heat flux reduction calculations were performed by combining the heat transfer coefficient measurements of the present study with adiabatic effectiveness measurements of a separate study. In order to gain insight into the hydrodynamics that affect the heat transfer, boundary layer measurements were conducted using hot-wire anemometry
Additional file 1: of Barriers and facilitators with medication use during the transition from hospital to home: a qualitative study among patients
Creators: name: Daliri, Sara
name: Bekker, Charlotte
name: Buurman, Bianca
name: Reimer, Wilma Scholte Op
name: Bemt, Bart
name: ĂArkit, Fatma Karapinar
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Example list of barriers and facilitators with medication use during the transition from hospital to home. (DOCX 21 kb)
Orbital Angular Momentum at Small $x$
Creators: name: Kovchegov, Yuri V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We determine the small Bjorken $x$ asymptotics of the quark and gluon orbital angular momentum (OAM) distributions in the proton in the double-logarithmic approximation (DLA), which resums powers of $α_s \ln^2 (1/x)$ with $α_s$ the strong coupling constant. Starting with the operator definitions for the quark and gluon OAM, we simplify them at small $x$, relating them, respectively, to the polarized dipole amplitudes for the quark and gluon helicities defined in our earlier works. Using the small-$x$ evolution equations derived for these polarized dipole amplitudes earlier we arrive at the following small-$x$ asymptotics of the quark and gluon OAM distributions in the large-$N_c$ limit: \begin{align} L_{q + \bar{q}} (x, Q^2) = - ΔΣ(x, Q^2) \sim \left(\frac{1}{x}\right)^{\frac{4}{\sqrt{3}} \, \sqrt{\frac{α_s \, N_c}{2 π}} }, \ \ \ \ \ L_G (x, Q^2) \sim ΔG (x, Q^2) \sim \left(\frac{1}{x}\right)^{\frac{13}{4 \sqrt{3}} \, \sqrt{\frac{α_s \, N_c}{2 π}}} . \end{align}
description: 27 pages
AGN and starbursts at high redshift: High resolution EVN radio observations of the Hubble Deep Field
Creators: name: Garrett, M. A.
name: Muxlow, T. W. B.
name: Garrington, S. T.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: VLBI now has the capability of imaging relatively large fields-of-view (~ 5 arcmin sq) with sub-mJy detection limits. In principle such observations can distinguish between starburst and AGN activity in cosmologically distant sources. We present the first deep, wide-field European VLBI Network (EVN) 1.6 GHz observations of faint radio sources in the Hubble Deep Field (HDF) region. The EVN clearly (> 5sigma) detects 2 radio sources in a field that encompasses the HDF and part of the Hubble Flanking Fields (HFF). The sources detected are: VLA J123644+621133 (a z=1.01, low-luminosity FR-I radio source located within the HDF itself) and VLA J123642+621331 (a dust enshrouded, optically faint, z=4.424 starburst system). A third radio source, J123646+621404, is detected at the 4sigma level. The observations presented here, suggest that the radio emission in the dusty starburst, VLA J123642+621331, arises mainly from AGN activity, suggesting that in this system, both AGN and starburst activity co-exist. The prospects for future VLBI deep fields are briefly discussed.
description: 4 pages, 1 Figure. See http://www.jive.nl/~mag/hdf/evn/pr/ for better quality images/more info. To appear in the "Proceedings of the 5th EVN Symposium", Eds. J. Conway, A. Polatidis, R.Booth., Onsala Space Observatory, Chalmers Technical University, Gothenburg, Sweden (2000)
Deep learning-based super-resolution in coherent imaging systems
Creators: name: Liu, Tairan
name: de Haan, Kevin
name: Rivenson, Yair
name: Wei, Zhensong
name: Zeng, Xin
name: Zhang, Yibo
name: Ozcan, Aydogan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: I.2; I.2.1; I.2.6; I.2.10; I.4.5; I.4.9
subject: 68T01, 68T05, 68U10, 62M45, 78M32, 92C55, 94A08

description: We present a deep learning framework based on a generative adversarial network (GAN) to perform super-resolution in coherent imaging systems. We demonstrate that this framework can enhance the resolution of both pixel size-limited and diffraction-limited coherent imaging systems. We experimentally validated the capabilities of this deep learning-based coherent imaging approach by super-resolving complex images acquired using a lensfree on-chip holographic microscope, the resolution of which was pixel size-limited. Using the same GAN-based approach, we also improved the resolution of a lens-based holographic imaging system that was limited in resolution by the numerical aperture of its objective lens. This deep learning-based super-resolution framework can be broadly applied to enhance the space-bandwidth product of coherent imaging systems using image data and convolutional neural networks, and provides a rapid, non-iterative method for solving inverse image reconstruction or enhancement problems in optics.
description: 18 pages, 9 figures, 3 tables
MOESM1 of Overexpression and Tyr421-phosphorylation of cortactin is induced by three-dimensional spheroid culturing and contributes to migration and invasion of pancreatic ductal adenocarcinoma (PDAC) cells
Creators: name: Stock, Katharina
name: Borrink, Rebekka
name: Jan-Henrik Mikesch
name: Hansmeier, Anna
name: Rehkämper, Jan
name: Trautmann, Marcel
name: Wardelmann, Eva
name: Hartmann, Wolfgang
name: Sperveslage, Jan
name: Steinestel, Konrad
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 1. Additional figures.
D1.1 Taxonomy of actors, terminology and experimental tools
Creators: name: Fioretto, Michela
name: Anagnostopoulou, Afroditi
Publisher: name: Zenodo
Year: 2019
Subjects: Be open
Transport
transport research
Open science
Open access
Project

description: This deliverable gives an overview of the main actors involved in the transport sector by considering six main areas of competence to cluster the main findings, namely 1. Business Modelling, 2. Environmental, 3. Legal/Regulatory, 4. Socio-economic, 5. Technological, and 6. Transport planning. The research of scientific sources has examined three different types of resources, in particular: original research data; operational data directly related to research; data from published transport research.
description: {"references": ["Fioretto and Anagnostopoulou (2019). D1.1 Taxonomy of actors, terminology and experimental tools"]}
Asyptopic Properties of Maximum Likelihood Estimators in a Nonlinear Regression Model with Unknown Parameters in the Disturbance Convariance Matrix
Creators: name: Heijmans, Risto
name: Magnus, Jan
name: Heijmans, Risto
name: Magnus, Jan
Publisher: name: Unknown
Year: 1977
Subjects: subject: Research Methods/ Statistical Methods
subject: Asymptotic properties
subject: information matrix
subject: maximum likelihood estimation
subject: nonlinear regression

description: For the nonlinear regression model y t = X t (fi) t where the vector c is distributed N(0,Q(0)) it is shown that under fairly general condition the maximum likelihood estimator of e and 13 are consistent and asymptotically normal distributed.
Topological Degeneracy of Quantum Hall Fluids
Creators: name: Wen, X. G.
name: Zee, A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a simple approach to calculate the degeneracy and the structure of the ground states of non-abelian quantum Hall (QH) liquids on the torus. Our approach can be applied to any QH liquids (abelian or non-abelian) obtained from the parton construction. We explain our approach by studying a series of examples of increasing complexity. When the effective theory of a non-abelian QH liquid is a non-abelian Chern-Simons (CS) theory, our approach reproduces the well known results for the ground state degeneracy of the CS theory. However, our approach also apply to non-abelian QH liquids whose effective theories are not known and which cannot be written as a non-abelian CS theory. We find that the ground states on a torus of all non-abelian QH liquids obtained from the parton construction can be described by points on a lattice inside a "folded unit cell." The folding is generated by reflection, rotations, etc. Thus the ground state structures on the torus described by the ``folded unit cells'' provide a way to (at least partially) classify non-abelian QH liquids obtained from the parton construction.
description: 33 pages, LaTeX+epsf, 2 eps figures. Expanded version
A numerical method to efficiently calculate the transport properties of large systems: an algorithm optimized for sparse linear solvers
Creators: name: Santos, Tatiane P.
name: Lima, Leandro R. F.
name: Lewenkopf, Caio H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a self-contained description of the wave-function matching (WFM) method to calculate electronic quantum transport properties of nanostructures using the Landauer-Büttiker approach. The method is based on a partition of the system between a central region ("conductor") containing $N_S$ sites and an asymptotic region ("leads") characterized by $N_P$ open channels. The two subsystems are linearly coupled and solved simultaneously using an efficient sparse linear solver. Invoking the sparsity of the Hamiltonian matrix representation of the central region, we show that the number of operations required by the WFM method in conductance calculations scales with $\sim N_S\times N_P$ for large $N_S$.
description: 22 pages, 8 figures
Arbor -- a morphologically-detailed neural network simulation library for contemporary high-performance computing architectures
Creators: name: Akar, Nora Abi
name: Cumming, Ben
name: Karakasis, Vasileios
name: Küsters, Anne
name: Klijn, Wouter
name: Peyser, Alexander
name: Yates, Stuart
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: We introduce Arbor, a performance portable library for simulation of large networks of multi-compartment neurons on HPC systems. Arbor is open source software, developed under the auspices of the HBP. The performance portability is by virtue of back-end specific optimizations for x86 multicore, Intel KNL, and NVIDIA GPUs. When coupled with low memory overheads, these optimizations make Arbor an order of magnitude faster than the most widely-used comparable simulation software. The single-node performance can be scaled out to run very large models at extreme scale with efficient weak scaling. HPC, GPU, neuroscience, neuron, software
description: PDP 2019 27th Euromicro International Conference on Parallel, Distributed and Network-based Processing
D2.3 Transport Research in the European Open Science Cloud
Creators: name: Manola, Natalia
name: Anagnostopoulou, Afroditi
name: Dimitropoulos, Harry
name: Bardi, Alessia
Publisher: name: Zenodo
Year: 2020
Subjects: Be open
Transport
transport research
Open science
Open access

description: This deliverable aims to position the transport research domain in relation to the European Open Science Cloud (EOSC), related to the technical and social developments, as well as the relation to the governance as this emerges in the EOSC Partnership and EOSC Association. As EOSC is setting up its structures and prioritizes the areas of action, the transport research community recognizes the value of the emerging developments in EOSC and has identified gaps and interventions along the following six action lines which are required to fulfil the TRC vision: Architecture, Data, Services, Access & Interface, Rules and Governance.
description: {"references": ["Manola Natalia, Anagnostopoulou Afroditi, Dimitropoulos Harry, & Bardi Alessia. (2020). D2.3: Transport Research in the European Open Science Cloud. Zenodo."]}
H3+ Between the Stars
Creators: name: Geballe, T. R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The presence of H3+ in the interstellar medium was forecast almost four decades ago. Almost three decades ago it was asserted that its reactions with neutral molecular and atomic species directly lead to the production of many of the interstellar molecules that have been discovered by radio and infrared astronomers. With the recent detection of H3+ in interstellar space, astronomers finally have direct confirmation of H3+ as the foundation of ion-molecule interstellar chemistry. Although many questions remain to be answered, it is clear that H3+is a unique tool for understanding the properties of interstellar clouds.
description: 12 pages (Latex) and 5 figures (postscript)
Additional file 3 of Clinical characteristics and survival outcomes of malignant struma ovarii confined to the ovary
Creators: name: Li, Sijian
name: Yang, Tengyu
name: Xiang, Yang
name: Li, Xiaoyan
name: Zhang, Limeng
name: Deng, Shan
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Mathematical Sciences not elsewhere classified
Cancer
Science Policy

description: Additional file 3:. Univariate and multivariate analysis of OS
The Role of Simulations in Understanding Cluster Formation
Creators: name: Saro, Alex
Publisher: name: Zenodo
Year: 2021

description: I will review how clusters and protoclusters assemble in the framework of state-of the-art cosmological hydrodynamical simulations and semi-analytic models of galaxy formation. I will highlight the main successes and problems associated with theoretical models in reproducing the properties of clusters and protoclusters. I will describe the role of simulations in providing a theoretical support to interpret the properties of up-coming samples from large multi-wavelength surveys.