cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fourier resolved spectroscopy of 4U 1543-47 during the 2002 outburst
Creators: name: Reig, P.
name: Papadakis, I. E.
name: Shrader, C. R.
name: Kazanas, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have obtained Fourier-resolved spectra of the black-hole binary 4U 1543-47 in the canonical states (high/soft, very high, intermediate and low/hard) observed in this source during the decay of an outburst that took place in 2002. Our objective is to investigate the variability of the spectral components generally used to describe the energy spectra of black-hole systems, namely a disk component, a power-law component attributed to Comptonization by a hot corona and the contribution of the iron line due to reprocessing of the high energy (E > 7 keV) radiation. We find that i) the disk component is not variable on time scales shorter than ~100 seconds, ii) the reprocessing emission as manifest by the variability of the Fe Kalpha line responds to the primary radiation variations down to time scales of ~70 ms in the high and very-high states, but longer than 2 s in the low state, iii) the low-frequency QPOs are associated with variations of the X-ray power law spectral component and not to the disk component and iv) the spectra corresponding to the highest Fourier frequency are the hardest (show the flatter spectra) at a given spectral state. These results question models that explain the observed power spectra as due to modulations of the accretion rate alone, as such models do not provide any apparent reason for a Fourier frequency dependence of the power law spectral indices.
description: 21 pages, 2 tables, 5 figures. Accepted for publication in ApJ
Collisional mixing between inner and outer solar system planetesimals inferred from the Nedagolla iron meteorite
Creators: name: Spitzer, Fridolin
name: Burkhardt, Christoph
name: Pape, Jonas
name: Kleine, Thorsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The ungrouped iron meteorite Nedagolla is the first meteorite with bulk Mo, Ru, and Ni isotopic compositions that are intermediate between those of the non-carbonaceous (NC) and carbonaceous (CC) meteorite reservoirs. The Hf-W chronology of Nedagolla indicates that this mixed NC-CC isotopic composition was established relatively late, more than 7 million years after Solar System formation. The mixed NC-CC isotopic composition is consistent with the chemical composition of Nedagolla, which combines signatures of metal segregation under more oxidizing conditions (relative depletions in Mo and W), characteristic for CC bodies, and more reducing conditions (high Si and Cr contents), characteristic for some NC bodies, in a single sample. These data combined suggest that Nedagolla formed as the result of collisional mixing of NC and CC core material, which partially re-equilibrated with silicate mantle material that predominantly derives from the NC body. These mixing processes might have occurred during a hit-and-run collision between two differentiated bodies, which also provides a possible pathway for Nedagolla's extreme volatile element depletion. As such, Nedagolla provides the first isotopic evidence for early collisional mixing of NC and CC bodies that is expected as a result of Jupiter's growth.
description: Accepted for publication in Meteoritics & Planetary Science
On relativistic elements of reality
Creators: name: Marchildon, Louis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Several arguments have been proposed some years ago, attempting to prove the impossibility of defining Lorentz-invariant elements of reality. I find that a sufficient condition for the existence of elements of reality, introduced in these proofs, seems to be used also as a necessary condition. I argue that Lorentz-invariant elements of reality can be defined but, as Vaidman pointed out, they won't satisfy the so-called product rule. In so doing I obtain algebraic constraints on elements of reality associated with a maximal set of commuting Hermitian operators.
description: Clarifications, reference added; published version
Direct measurement of the quantum state of the electromagnetic field in a superconducting transmission line
Creators: name: de Melo, F.
name: Aolita, L.
name: Toscano, F.
name: Davidovich, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose an experimental procedure to directly measure the state of an electromagnetic field inside a resonator, corresponding to a superconducting transmission line, coupled to a Cooper-pair box (CPB). The measurement protocol is based on the use of a dispersive interaction between the field and the CPB, and the coupling to an external classical field that is tuned to resonance with either the field or the CPB. We present a numerical simulation that demonstrates the feasibility of this protocol, which is within reach of present technology.
description: Accepted for publication in Physical Review A (Rapid Communication). 4 pages, 2 figures
Roteiro_de_entrevista.pdf
Creators: name: Magalhães, Helena
name: Bezerra, Julia
Publisher: name: figshare
Year: 2021
Subjects: subject: 111717 Primary Health Care
subject: FOS: Health sciences
subject: 111716 Preventive Medicine
subject: 111799 Public Health and Health Services not elsewhere classified
subject: 111712 Health Promotion

description: Formulário único, padronizado e de linguagem acessível e sem jargões, composto por questões abertas e fechadas que utilizado no estudo "Motivos para não realização do exame citopatológico de colo uterino entre usuárias de uma equipe de saúde em uma comunidade de baixa renda". Desenvolvido como roteiro para entrevista semiestruturada individual conduzida por um dos pesquisadores do estudo. Contempla características sociodemográficas, antecedentes clínicos, ginecológicos, obstétricos e sexualidade, questões norteadoras a respeito dos motivos da não adesão ao exame Papanicolau e fatores facilitadores.
Multiple Control of Few-layer Janus MoSSe Systems
Creators: name: Liu, Shuanglong
name: Fry, James N.
name: Cheng, Hai-Ping
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this computational work based on density functional theory we study the electronic and electron transport properties of asymmetric multi-layer MoSSe junctions, known as Janus junctions. Focusing on 4-layer systems, we investigate the influence of electric field, electrostatic doping, strain, and interlayer stacking on the electronic structure. We discover that a metal to semiconductor transition can be induced by an out-of-plane electric field. The critical electric field for such a transition can be reduced by in-plane biaxial compressive strain. Due to an intrinsic electric field, a 4-layer MoSSe can rectify out-of-plane electric current. The rectifying ratio reaches 34.1 in a model junction Zr/4-layer MoSSe/Zr. This ratio can be further enhanced by increasing the number of MoSSe layers. In addition, we show a drastic sudden vertical compression of 4-layer MoSSe due to in-plane biaxial tensile strain, indicating a second phase transition. Furthermore, an odd-even effect on electron transmission at the Fermi energy for Zr/$n$-layer MoSSe/Zr junctions with $n=1, \, 2,\, 3, \,\dots,\, 10$ is observed. These findings reveal the richness of physics in this asymmetric system and strongly suggest that the properties of 4-layer MoSSe are highly tunable, thus providing a guide to future experiments relating materials research and nanoelectronics.
Scalar and vector meson exchange in V->P0P0gamma decays
Creators: name: Escribano, Rafel
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The scalar contributions to the radiative decays of light vector mesons into a pair of neutral pseudoscalars, $V\to P^0P^0γ$, are studied within the framework of the Linear Sigma Model. This model has the advantage of incorporating not only the scalar resonances in an explicit way but also the constraints required by chiral symmetry. The experimental data on $ϕ\toπ^0π^0γ$, $ϕ\toπ^0ηγ$, $ρ\toπ^0π^0γ$ and $ω\toπ^0π^0γ$ are satisfactorily accommodated in our framework. Theoretical predictions for $ϕ\to K^0\bar K^0γ$, $ρ\toπ^0ηγ$, $ω\toπ^0ηγ$ and the ratio $ϕ\to f_0γ/a_0γ$ are also given.
description: 42 pages, 11 figures. A new paragraph explaining the seminal contribution of Ref. [19] is added
The influence of fear-inducing stimuli on learning of visual context
Creators: name: Yamaguchi, Motonori
name: Harwood, Sarah
Publisher: name: F1000Research
Year: 2015

description: Fear-inducing visual stimuli (e.g., spiders) capture visual attention.  The present study examined the influences of fear-inducing stimuli on learning of visual context. Participants searched for a landolt square defined by color and gap location (e.g., a red square with a gap on the left or right).  Within each landolt square, an image of spider (fear-inducing) or mushroom (fear-irrelevant) was presented.  For half of the visual arrays, the locations of the target and the distractors, as well as the images within them, were fixed across trials; for the other half, they were determined randomly on each trial.  Search time was shorter when the target contained a fear-inducing image than when it contained a fear-irrelevant image, and when the distractors contained fear-irrelevant images than when they contained fear-inducing images, indicating strong attention capture by fear-inducing stimuli.  Search time was also shorter when search array was fixed than when it was random, yielding a contextual cuing effect.  However, the effect depended on whether the images within target and distractors were of the same kind, not whether they were fear-inducing.  Therefore, fear-inducing stimuli have little influence on implicit learning of visual context.
Dolichogenidea cytherea
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea cytherea

description: D. cytherea (Nixon, 1972): T1 clearly (although slightly) narrowing towards posterior margin from half-length of tergite; T2 subtrapezoidal; ovipositor sheath much longer (1.6–1.7 times) than metatibia.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 171, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178
Langevin dynamics with dichotomous noise; direct simulation and applications
Creators: name: Barik, Debashis
name: Ghosh, Pulak Kumar
name: Ray, Deb Shankar
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We consider the motion of a Brownian particle moving in a potential field and driven by dichotomous noise with exponential correlation. Traditionally, the analytic as well as the numerical treatments of the problem, in general, rely on Fokker-Planck description. We present a method for direct numerical simulation of dichotomous noise to solve the Langevin equation. The method is applied to calculate nonequilibrium fluctuation induced current in a symmetric periodic potential using asymmetric dichotomous noise and compared to Fokker-Planck-Master equation based algorithm for a range of parameter values. Our second application concerns the study of resonant activation over a fluctuating barrier.
description: Accepted in Journal of Statistical Mechanics: Theory and Experiment
Metropolit Nikodim (Rotow) und sein Beitrag zum Dialog zwischen der Russischen Orthodoxen Kirche und der Evangelischen Kirche in Deutschland
Creators: name: Morozov, Evgeny
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 65 Nr. 1 (2016): Ökumenische Rundschau, Band 65, Heft 1
ESTIMATION OF ELLAGIC ACID IN AYURVEDIC POLYHERBAL FORMULATION AMRTOTTARA KVATHA BY HPTLC METHOD.
Creators: name: R.S.Karthika
name: A.Shahul Hameed
name: M.T. Meenu.
Publisher: name: Zenodo
Year: 2019
Subjects: polyherbal formulation Amrtottarakvatha Ellagic acid HPTLC.

description: Amrtottarakvatha is a decoction which is used primarily in the management of hyperpyrexia (jwara). Specific plant parts of Tinosporacordifolia (Willd.) Miers.,Terminaliachebula Retz., and ZingiberoffficinaleRoscoe. are its ingredients. Only nine compounds have been reported from this polyherbal formulation. In the current study a simple and precise high performance thin layer chromatographic (HPTLC) method was developed for identification and quantification of an unreported compound Ellagic acid in this decoction. Ellagic acid is one of the major compounds in Terminalia chebula Retz. The HPTLC method used aluminium plates pre-coated with silica gel 60F254 as the stationary phase and Toluene:Methanol:Ethyl acetate: Formic acid (4:1:4:1, v/v) as solvent system. This system gave compact spot for Ellagic acid (Rf: 0.39 ? 0.0038).The method was validated for specificity, linearity and precision. The limit of detection and quantification were 0.52 ng and 1.577 ng respectively. The amount of Ellagic acid in Amrtottara kvatha was estimated as 0.050?0.016 % w/w by the developed method. The method for identification and quantification of Ellagic acid in Amrtottara kvatha can be used in pharmacological exploration and standardization of Amrtottarakvatha.
Evidence for viral causes of cancer in prostate cancer transcriptomes and genomes
Creators: name: Amos, Timothy
name: Lawson, James
name: Glenn, Wendy
name: Whitaker, Noel
name: Edwards, Richard
Publisher: name: F1000Research
Year: 2015

description: Viruses are known to cause 10-15% of human cancers. Some ongoing viral infections such as HPV in cervical cancer can be easily detected in the cancer transcriptome. However, in other situations viruses contribute to cancer causation without sustained high expression levels. PCR has detected HPV in prostate cancers but RNA-Seq has not shown strong evidence of continuing infections. We analysed prostate cancer transcriptomes and genomes from The Cancer Genome Atlas to further investigate HPV's role in prostate cancer causation. Previous studies have filtered out all reads that might not be viral and then set thresholds for real infections by comparing to positive controls. In contrast, we found all possible viral reads and then evaluated multiple streams of evidence that they were genuine. Sequences were evaluated on the uniqueness of alignments to human, viral and vector sequences. They were also evaluated for sequence complexity, sequence quality, alignment quality, relative alignment locations of paired-end reads and the presence of chimeric reads that indicate viral integration sites. By screening cancer transcriptomes and genomes against all viruses in the NCBI database (c. N = 5766), including non-human viruses, we are also able to compare the strength of evidence against known false positives. We discuss the results of 22 viral candidates for oncogenesis in 558 prostate cancer paired RNA-Seq and WGS datasets.
Bubble Clustering in Cosmological First Order Phase Transitions
Creators: name: Pirvu, Dalila
name: Braden, Jonathan
name: Johnson, Matthew C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: False vacuum decay in quantum mechanical first order phase transitions is a phenomenon with wide implications in cosmology, and presents interesting theoretical challenges. In the standard approach, it is assumed that false vacuum decay proceeds through the formation of bubbles that nucleate at random positions in spacetime and subsequently expand. In this paper we investigate the presence of correlations between bubble nucleation sites using a recently proposed semi-classical stochastic description of vacuum decay. This procedure samples vacuum fluctuations, which are then evolved using classical lattice simulations. We compute the two-point function for bubble nucleation sites from an ensemble of simulations, demonstrating that nucleation sites cluster in a way that is qualitatively similar to peaks in random Gaussian fields. We qualitatively assess the phenomenological implications of bubble clustering in early Universe phase transitions, which include features in the power spectrum of stochastic gravitational waves and an enhancement or suppression of the probability of observing bubble collisions in the eternal inflation scenario.
The origin of molecular hydrogen emission in cooling-flow filaments
Creators: name: Ferland, G. J.
name: Fabian, A. C.
name: Hatch, N. A.
name: Johnstone, R. M.
name: Porter, R. L.
name: van Hoof, P. A. M.
name: Williams, R. J. R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The optical filaments found in many cooling flows in galaxy clusters consist of low density ($\sim 10^3 \pcc$) cool ($\sim 10^3$ K) gas surrounded by significant amounts of cosmic-ray and magnetic-field energy. Their spectra show anomalously strong low-ionization and molecular emission lines when compared with galactic molecular clouds exposed to ionizing radiation such as the Orion complex. Previous studies have shown that the spectra cannot be produced by O-star photoionization. Here we calculate the physical conditions in dusty gas that is well shielded from external sources of ionizing photons and is energized either by cosmic rays or dissipative MHD waves. Strong molecular hydrogen lines, with relative intensities similar to those observed, are produced. Selection effects introduced by the microphysics produce a correlation between the \htwo line upper level energy and the population temperature. These selection effects allow a purely collisional gas to produce \htwo emission that masquerades as starlight-pumped \htwo but with intensities that are far stronger. This physics may find application to any environment where a broad range of gas densities or heating rates occur.
description: 5 pages, 4 figures, accepted to MNRAS Letters
Roteiro_de_entrevista.pdf
Creators: name: Magalhães, Helena
Publisher: name: figshare
Year: 2021
Subjects: subject: 111717 Primary Health Care
subject: FOS: Health sciences
subject: 111716 Preventive Medicine
subject: 111799 Public Health and Health Services not elsewhere classified
subject: 111712 Health Promotion

description: Formulário único, padronizado e de linguagem acessível e sem jargões, composto por questões abertas e fechadas que utilizado no estudo "Motivos para não realização do exame citopatológico de colo uterino entre usuárias de uma equipe de saúde em uma comunidade de baixa renda". Desenvolvido como roteiro para entrevista semiestruturada individual conduzida por um dos pesquisadores do estudo. Contempla características sociodemográficas, antecedentes clínicos, ginecológicos, obstétricos e sexualidade, questões norteadoras a respeito dos motivos da não adesão ao exame Papanicolau e fatores facilitadores.
Quantum Metallicity on the High-Field Side of the Superconductor-Insulator Transition
Creators: name: Baturina, T. I.
name: Strunk, C.
name: Baklanov, M. R.
name: Satta, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate ultrathin superconducting TiN films, which are very close to the localization threshold. Perpendicular magnetic field drives the films from the superconducting to an insulating state, with very high resistance. Further increase of the magnetic field leads to an exponential decay of the resistance towards a finite value. In the limit of low temperatures, the saturation value can be very accurately extrapolated to the universal quantum resistance h/e^2. Our analysis suggests that at high magnetic fields a new ground state, distinct from the normal metallic state occurring above the superconducting transition temperature, is formed. A comparison with other studies on different materials indicates that the quantum metallic phase following the magnetic-field-induced insulating phase is a generic property of systems close to the disorder-driven superconductor-insulator transition.
description: 4 pages, 4 figures, published version
BPOD: A WIRELESS INTEGRATED SENSOR PLATFORM FOR CONTINUOUS LOCALIZED BIOPROCESS MONITORING
Creators: name: Stine, Justin
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: Dissolved Oxygen, Wireless Sensing, Bioreactor, Clark-type Electrode

description: Process parameter spatial inhomogeneities inside cell culture bioreactors has attracted considerable attention, however, few technologies allow investigation of the impact of these variations on process yield. Commercially available sensing probes sit at fixed locations, failing to capture the spatial distribution of process metrics. The bio-Processing online device (bPod) addresses this problem by performing real-time in situ monitoring of dissolved oxygen (DO) within bioreactor cell cultures. The bPod is an integrated system comprised of a potentiostat analog-front-end, a Bluetooth Low Energy microcontroller, and a Clark-type electrochemical DO sensor. The Clark-type sensor uses chronoamperometry to determine the DO percent saturation within a range relevant for mammalian cell culture. The free-floating capsule is packaged inside a 3D-printed biocompatible shell and wirelessly transmits data to a smartphone while submerged in the reactor. Furthermore, the bPod demonstrated a sensitivity of 37.5 nA/DO%, and can be adapted to multiple sensor types, enabling numerous bioprocess monitoring applications.
Improving Reproducibility of Sputter Deposited Ferroelectric Wurtzite Al0.6Sc0.4N Films using In-situ Optical Emission Spectrometry
Creators: name: Drury, Daniel
name: Yazawa, Keisuke
name: Mis, Allison
name: Talley, Kevin
name: Zakutayev, Andriy
name: Brennecka, Geoff L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High-Sc Al1-xScxN thin films are of tremendous interest because of their attractive piezoelectric and ferroelectric properties, but overall film quality and reproducibility are widely reported to suffer as x increases. In this study, we correlate the structure and electrical properties of Al0.6Sc0.4N with in-situ observations of glow discharge optical emission during growth. This in-situ technique uses changes in the Ar(I) and N2(I) emission lines of the glow discharge during growth to identify films that subsequently exhibit unacceptable structural and electrical performance. We show that a steady deposition throughout film growth produces ferroelectric Al0.6Sc0.4N with a reversible 80 μC cm-1 polarization and 3.1 MV cm-1 coercive field. In other films deposited using identical settings, fluctuations in both Ar(I) and N2(I) line intensities correspond to decreased wurtzite phase purity, nm-scale changes to the film microstructure, and a non-ferroelectric response. These results illustrate the power of optical emission spectroscopy for tracking changes when fabricating process-sensitive samples such as high-Sc Al1-xScxN films.
description: 16 pages, 4 figures in main, 4 figures in supplementary information
Contraction semigroups on $L_\infty({\bf R})$
Creators: name: Robinson, Derek W.
name: ter Elst, A. F. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 47B44, 58G03

description: If $X$ is a non-degenerate vector field on ${\bf R}$ and $H=-X^2$ we examine conditions for the closure of $H$ to generate a continuous semigroup on $L_\infty$ which extends to the $L_p$-spaces. We give an example which cannot be extended and an example which extends but for which the real part of the generator on $L_2$ is not lower semibounded.
description: 14 pages
Analysis of Heterogeneous Structures of Non-separated Scales on Curved Bridge Nodes
Creators: name: Li, Ming
name: Hu, Jingqiao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Numerically predicting the performance of heterogenous structures without scale separation represents a significant challenge to meet the critical requirements on computational scalability and efficiency -- adopting a mesh fine enough to fully account for the small-scale heterogeneities leads to prohibitive computational costs while simply ignoring these fine heterogeneities tends to drastically over-stiffen the structure's rigidity. This study proposes an approach to construct new material-aware shape (basis) functions per element on a coarse discretization of the structure with respect to each curved bridge nodes (CBNs) defined along the elements' boundaries. Instead of formulating their derivation by solving a nonlinear optimization problem, the shape functions are constructed by building a map from the CBNs to the interior nodes and are ultimately presented in an explicit matrix form as a product of a Bézier interpolation transformation and a boundary-interior transformation. The CBN shape function accomodates more flexibility in closely capturing the coarse element's heterogeneity, overcomes the important and challenging issues of inter-element stiffness and displacement discontinuity across interface between coarse elements, and improves the analysis accuracy by orders of magnitude; they also meet the basic geometric properties of shape functions that avoid aphysical analysis results. Extensive numerical examples, including a 3D industrial example of billions of degrees of freedom, are also tested to demonstrate the approach's performance in comparison with results obtained from classical approaches.
description: 29 pages, 23 figures
Multiagent manipulator control
Creators: name: Moncton, Simon Philip
Publisher: name: University of British Columbia
Year: 2009

description: The objective of this research is to define, specify, and implement a new, robust, and extensible manipulator control founded upon recent developments in multiagent robot control architectures.. Historically manipulator controllers serve within an idealized monolithic "sense-model-plan-act" (SMPA) control cycle that is both difficult and expensive to design for real time implementation. Recently, however, robotic systems have achieved remarkable performance through the combination of multiple, relatively simple, task specific controllers. These agents are arguably more reliable, robust, and extensible than SMPA architectures exhibiting similar performance. Furthermore, complex tasks have been achieved through multiagent teams, often exhibiting self organinzing or emergent behaviour. Despite these benefits and the growing popularity of these techniques, a formal model of agent and/or multiagent systems has not been proposed nor has any such architecture been applied to classical manipulation robotics. This thesis attempts to address these omissions through the analysis and application of multiagent design principles to manipulator control. After an introduction; to problems in real time supervisory robot control, an overview of manipulator and controller dynamics establishes a reference robot model. With this model as background, experimental high performance robot architectures arc examined and concepts common to these systems identified. Multiagent manipulator control strategies are then discussed and global goal distribution mechanism introduced. The design and implementation of a complementary multiprocess manipulator simulator is then described. With a global goal distribution definition, the design of a manipulator model-free global goal generator is discussed. Results from a multiagent manipulator control simulation are then presented and evaluated. The focus then turns to multiple global goal operation, discussing self organization, multiple global goals, and the impact of simultaneously active local and global goal systems on stability and arbitration. Results demonstrate multiple global and local goal operation including combinations of end effector trajectory tracking, joint failure, obstacle avoidance, joint centering, and joint limit avoidance. Finally, the significance of these results is discussed in the context of general multiagent control.
Telling quantum DoQs and quantum Qats apart
Creators: name: Chancé Alain
name: Michaël, Rollin
name: Sahar, Ben Rached
name: Varga Tamas
name: Querella Laurent
Publisher: name: Zenodo
Year: 2021
Subjects: quantum
quantum-machine-learning
qml
quantum-physics

description: We classify regions of the Hilbert space, of quantum states of n qubits. There are 2 categories, Qat and DoQ. As an example, for n=1, one hemisphere of the Bloch sphere could be labelled Qat, the other hemisphere DoQ. The state vectors to classify are generated as the output of a sensor, which is then fed into a classifier circuit of M layers. Note that we are NOT classifying the classical params vector of the sensor, as we could use any other sensor with different parameterization as long as it's capable of producing Qat and DoQ states. Also, we take the sensor as is, we don't try to "optimize" it.
description: GitHub : https://github.com/mickahell/qhack21
Single-shot measurement of few-cycle optical waveforms on a chip
Creators: name: Liu, Yangyang
name: Beetar, John E.
name: Nesper, Jonathan
name: Gholam-Mirzaei, Shima
name: Chini, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The measurement of transient optical fields has proven critical to understanding the dynamical mechanisms underlying ultrafast physical and chemical phenomena, and is key to realizing higher speeds in electronics and telecommunications. Complete characterization of optical waveforms, however, requires an optical oscilloscope capable of resolving the electric field oscillations with sub-femtosecond resolution and with single-shot operation. Here, we show that strong-field nonlinear excitation of photocurrents in a silicon-based image sensor chip can provide the sub-cycle optical gate necessary to characterize carrier-envelope phase-stable optical waveforms in the mid-infrared. By mapping the temporal delay between an intense excitation and weak perturbing pulse onto a transverse spatial coordinate of the image sensor, we show that the technique allows single-shot measurement of few-cycle waveforms.
D1.6: Data management plan
Creators: name: Peters-von Gehlen, Karsten
Publisher: name: Zenodo
Year: 2022

description: About this document

The Data Management Plan (DMP) provides details how all data processed, generated and produced at different modelling centres and the storage of the data, documents the data standard, provides a description of standard postprocessing tools and workflow relevant software, describes data exchange with other relevant projects as well as data curation and preservation within nextGEMS. This report is a shortened version of the nextGEMS DMP that is available to all project partners.

Work package in charge

WP1

Executive summary

This Deliverable details how all data in NextGEMS is handled and how the project addresses compliance with the FAIR data principles. Further, every work package has contributed information regarding the research data workflows applied to proceed towards the project goals. This also applies to the processing of personal data, which is related to the ethics deliverable D11.1. All information contained in this DMP is considered preliminary, and the DMP will be updated as NextGEMS progresses.

Conclusion & Results

In this DMP, we have detailed the approach of NextGEMS to comply with the FAIR data principles from the perspective of a project creating very large amounts of numerical model simulation output, which becomes obsolete with every new step in model development. Making all data available according to the FAIR principles is technically and organisationally not possible – NextGEMS thus focuses on selected project outcomes to be made available according to the FAIR principles. All necessary information needed to handle and process data created in NextGEMS is documented in https://easy.gems.dkrz.de and is not contained in this DMP. That website is maintained by NextGEMS project scientists. Further, we have collected information pertaining to project data from every work package. This information consists of contact details, data produced and reused, data dependencies between work packages, approaches to project internal and global data sharing and dissemination, and data archiving approaches. Due to the early stage of the NextGEMS project, all information given in this DMP is considered preliminary and will be updated as the project progresses, i.e., the DMP is appropriately treated as a “living document”.
Discovery of a Very Bright Strongly-Lensed Galaxy Candidate at z ~ 7.6
Creators: name: Bradley, L. D.
name: Bouwens, R. J.
name: Ford, H. C.
name: Illingworth, G. D.
name: Jee, M. J.
name: Benitez, N.
name: Broadhurst, T. J.
name: Franx, M.
name: Frye, B. L.
name: Infante, L.
name: Motta, V.
name: Rosati, P.
name: White, R. L.
name: Zheng, W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using HST and Spitzer IRAC imaging, we report the discovery of a very bright strongly lensed Lyman break galaxy (LBG) candidate at z~7.6 in the field of the massive galaxy cluster Abell 1689. The galaxy candidate, which we refer to as A1689-zD1, shows a strong z-J break of at least 2.2 mag and is completely undetected (<1 sigma) in HST/ACS g, r, i, and z-band data. These properties, combined with the very blue J-H and H-[4.5] colors, are exactly the properties of an z~7.6 LBG and can only be reasonably fit by a star-forming galaxy at z=7.6 +/- 0.4. Attempts to reproduce these properties with a model galaxy at z<4 yield particularly poor fits. A1689-zD1 has an observed (lensed) magnitude of 24.7 AB (8 sigma) in the NICMOS H band and is ~1.3 mag brighter than the brightest-known z-dropout galaxy. When corrected for the cluster magnification of 9.3 at z~7.6, the candidate has an intrinsic magnitude of H=27.1 AB, or about an L* galaxy at z~7.6. The source-plane deprojection shows that the star formation is occurring in compact knots of size ~<300 pc. The best-fit stellar population synthesis models yield a median redshift of 7.6, stellar masses (1.6-3.9) x 10^9 M_sun, stellar ages 45-320 Myr, star-formation rates ~<7.6 M_sun/yr, and low reddening with A_V <= 0.3. These properties are generally similar to those of LBGs found at z~5-6. The inferred stellar ages suggest a formation redshift of z~8-10 (t~<0.63 Gyr). A1689-zD1 is the brightest observed, highly reliable z>7.0 galaxy candidate found to date.
description: Accepted for publication in the Astrophysical Journal, 8 pages, 8 figures, updated to match version in press
An ab initio study of a field-induced position change of a C60 molecule adsorbed on a gold tip
Creators: name: Stadler, R.
name: Kubatkin, S.
name: Bjornholm, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent I/V curve measurements suggest that C60 molecules deposited in gold nanojunctions change their adsorption configuration when a finite voltage in a 2-terminal setting is applied. This is of interest for molecular electronics because a robust molecular transistor could be based on such junctions if the mechanism of the process is understood. We present density functional theory based plane wave calculations, where we studied the energetics of the molecule's adsorption under the influence of an external field. Particular emphasis was placed on investigating a possible lightning rod effect which might explain the switching between configurations found in the experiments. We also analyze our results for the adsorption energetics in terms of an electrostatic expression for the total energy, where the dependence of the polarizability of thejunction on the position of the C60 molecule was identified as a crucialproperty for the field induced change of adsorption site.
description: 11 pages, 4 figures
Geographical effects on epidemic spreading in scale-free networks
Creators: name: Xu, Xin-Jian
name: Wang, Wen-Xu
name: Zhou, Tao
name: Chen, Guanrong
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Many real networks are embedded in a metric space: the interactions among individuals depend on their spatial distances and usually take place among their nearest neighbors. In this paper, we introduce a modified susceptible-infected-susceptible (SIS) model to study geographical effects on the spread of diseases by assuming that the probability of a healthy individual infected by an infectious one is inversely proportional to the Euclidean distance between them. It is found that geography plays a more important role than hubs in disease spreading: the more geographically constrained the network is, the more highly the epidemic prevails.
description: 4 pages, 5 figures
Coherence resonance in neuronal populations: mean-field versus network model
Creators: name: Baspinar, Emre
name: Schülen, Leonhard
name: Olmi, Simona
name: Zakharova, Anna
Publisher: name: arXiv
Year: 2020
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The counter-intuitive phenomenon of coherence resonance describes a non-monotonic behavior of the regularity of noise-induced oscillations in the excitable regime, leading to an optimal response in terms of regularity of the excited oscillations for an intermediate noise intensity. We study this phenomenon in populations of FitzHugh-Nagumo (FHN) neurons with different coupling architectures. For networks of FHN systems in excitable regime, coherence resonance has been previously analyzed numerically. Here we focus on an analytical approach studying the mean-field limits of the locally and globally coupled populations. The mean-field limit refers to the averaged behavior of a complex network as the number of elements goes to infinity. We derive a mean-field limit approximating the locally coupled FHN network with low noise intensities. Further, we apply mean-field approach to the globally coupled FHN network. We compare the results of the mean-field and network frameworks for coherence resonance and find a good agreement in the globally coupled case, where the correspondence between the two approaches is sufficiently good to capture the emergence of anticoherence resonance. Finally, we study the effects of the coupling strength and noise intensity on coherence resonance for both the network and the mean-field model.
description: 31 pages, 11 figures
Quark-hadron duality and hadron properties from correlators of pseudoscalar and axial currents
Creators: name: Lucha, W.
name: Melikhov, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the operator product expansion (OPE) and quark-hadron duality for 2- and 3-point correlators of the axial (A) and pseudoscalar (P) currents of the light quarks. In the chiral limit these correlators are often dominated by nonperturbative power corrections leading to subtleties of quark-hadron duality relations and of the extraction of properties of light pseudoscalars. For the 2-point correlators, we show the sum rule for $$ to be sensitive to the excited light pseudoscalar. For the 3-point correlators, we derive the Ward identites which provide the normalization of the pion electromagnetic form factor at zero momentum transfer. For large momentum transfer, we demonstrate the way the correct behaviour of the pion form factor in agreement with perturbative QCD emerges from condensate terms in the OPE for the $$ and $$ correlators. The local-duality sum rule for $$ is shown to lead to the pion form factor with the required properties for all values of the momentum transfer.
description: 11 pages
Secret Key Agreement with Physical Unclonable Functions: An Optimality Summary
Creators: name: Günlü, Onur
name: Schaefer, Rafael F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Cryptography and Security (cs.CR)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Theory (cs.IT)
subject: Multimedia (cs.MM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We address security and privacy problems for digital devices and biometrics from an information-theoretic optimality perspective, where a secret key is generated for authentication, identification, message encryption/decryption, or secure computations. A physical unclonable function (PUF) is a promising solution for local security in digital devices and this review gives the most relevant summary for information theorists, coding theorists, and signal processing community members who are interested in optimal PUF constructions. Low-complexity signal processing methods such as transform coding that are developed to make the information-theoretic analysis tractable are discussed. The optimal trade-offs between the secret-key, privacy-leakage, and storage rates for multiple PUF measurements are given. Proposed optimal code constructions that jointly design the vector quantizer and error-correction code parameters are listed. These constructions include modern and algebraic codes such as polar codes and convolutional codes, both of which can achieve small block-error probabilities at short block lengths, corresponding to a small number of PUF circuits. Open problems in the PUF literature from a signal processing, information theory, coding theory, and hardware complexity perspectives and their combinations are listed to stimulate further advancements in the research on local privacy and security.
description: To appear in MDPI Entropy Journal. arXiv admin note: text overlap with arXiv:2002.11687
VERITAS Observations of the gamma-Ray Binary LS I +61 303
Creators: name: Acciari, V. A.
name: Beilicke, M.
name: Blaylock, G.
name: Bradbury, S. M.
name: Buckley, J. H.
name: Bugaev, V.
name: Butt, Y.
name: Byrum, K. L.
name: Celik, O.
name: Cesarini, A.
name: Ciupik, L.
name: Chow, Y. C. K.
name: Cogan, P.
name: Colin, P.
name: Cui, W.
name: Daniel, M. K.
name: Duke, C.
name: Ergin, T.
name: Falcone, A. D.
name: Fegan, S. J.
name: Finley, J. P.
name: Fortin, P.
name: Fortson, L. F.
name: Gall, D.
name: Gibbs, K.
name: Gillanders, G. H.
name: Guenette, J. Grube R.
name: Hanna, D.
name: Hays, E.
name: Holder, J.
name: Horan, D.
name: Hughes, S. B.
name: Hui, C. M.
name: Humensky, T. B.
name: Kaaret, P.
name: Kieda, D. B.
name: Kildea, J.
name: Konopelko, A.
name: Krawczynski, H.
name: Krennrich, F.
name: Lang, M. J.
name: LeBohec, S.
name: Lee, K.
name: Maier, G.
name: McCann, A.
name: McCutcheon, M.
name: Millis, J.
name: Moriarty, P.
name: Mukherjee, R.
name: Nagai, T.
name: Ong, R. A.
name: Pandel, D.
name: Perkins, J. S.
name: Pizlo, F.
name: Pohl, M.
name: Quinn, J.
name: Ragan, K.
name: Reynolds, P. T.
name: Rose, H. J.
name: Schroedter, M.
name: Sembroski, G. H.
name: Smith, A. W.
name: Steele, D.
name: Swordy, S. P.
name: Toner, J. A.
name: Valcarcel, L.
name: Vassiliev, V. V.
name: Wagner, R.
name: Wakely, S. P.
name: Ward, J. E.
name: Weekes, T. C.
name: Weinstein, A.
name: White, R. J.
name: Williams, D. A.
name: Wissel, S. A.
name: Wood, M.
name: Zitzer, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: LS I +61 303 is one of only a few high-mass X-ray binaries currently detected at high significance in very high energy gamma-rays. The system was observed over several orbital cycles (between September 2006 and February 2007) with the VERITAS array of imaging air-Cherenkov telescopes. A signal of gamma-rays with energies above 300 GeV is found with a statistical significance of 8.4 standard deviations. The detected flux is measured to be strongly variable; the maximum flux is found during most orbital cycles at apastron. The energy spectrum for the period of maximum emission can be characterized by a power law with a photon index of Gamma=2.40+-0.16_stat+-0.2_sys and a flux above 300 GeV corresponding to 15-20% of the flux from the Crab Nebula.
description: accepted for publication in The Astrophysical Journal
Floppy swimming: Viscous locomotion of actuated elastica
Creators: name: Lauga, Eric
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Actuating periodically an elastic filament in a viscous liquid generally breaks the constraints of Purcell's scallop theorem, resulting in the generation of a net propulsive force. This observation suggests a method to design simple swimming devices - which we call "elastic swimmers" - where the actuation mechanism is embedded in a solid body and the resulting swimmer is free to move. In this paper, we study theoretically the kinematics of elastic swimming. After discussing the basic physical picture of the phenomenon and the expected scaling relationships, we derive analytically the elastic swimming velocities in the limit of small actuation amplitude. The emphasis is on the coupling between the two unknowns of the problems - namely the shape of the elastic filament and the swimming kinematics - which have to be solved simultaneously. We then compute the performance of the resulting swimming device, and its dependance on geometry. The optimal actuation frequency and body shapes are derived and a discussion of filament shapes and internal torques is presented. Swimming using multiple elastic filaments is discussed, and simple strategies are presented which result in straight swimming trajectories. Finally, we compare the performance of elastic swimming with that of swimming microorganisms.
description: 23 pages, 6 figures
Dolichogenidea decora
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea decora

description: D. decora (Haliday, 1834): Pterostigma brown; propodeum mostly polished and without areola (only small rugae above nucha); T1 and T2 mostly smooth; meso- and metafemora mostly yellow.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 171, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178