cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Comparative Analysis of Organic and Conventional Farming Profitability
Creators: name: Brožová, I.
name: Beranová, M.
name: Brožová, I.
name: Beranová, M.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Farm Management
subject: Productivity Analysis
subject: Conventional farms
subject: farms as legal entities
subject: financial analysis
subject: ratio indicators
subject: loss-making farms
subject: organic farms
subject: profitable farms

description: The objective of this article is to determine the economic performance of organic farms compared with conventional farms. The analysis included a set of farms the concentration of which is in natural and climatic conditions typical for this type of farming high. The outputs may be therefore considered representative and generalised. In order to determine the performance of these farms, their production basis was first assessed by using the indicators of available assets and assets coverage resources. Consequently, their efficiency was assessed based on the profit. For the purposes of comparison, the profit was (in various forms) converted to a hectare of agricultural land. The economic results were also compared with the average level achieved in the EU. The final part of the research focused on the evaluation of the economic and financial standing of the farms using selected return, liquidity, debt, and activity related ratio indicators. The established results show that the situation of organic farms on the national level tends to be economically more favourable. This is demonstrated by the higher share of profit-making farms and more favourable values of certain ratio indicators, i.e. those concerning profitability, liquidity, and interest coverage. The comparison with the average values achieved in the EU revealed a significantly more favourable situation in the Czech Republic.
Quantum groups and Cabibbo mixing
Creators: name: Gavrilik, A. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Treating the issue of hadron masses and mass relations by the use of quantum groups U_q(su_n) taken as hadron flavor symmetries suggests, at least in the case of baryons, a direct connection of the deformation parameter q with the Cabibbo angle. We discuss possible manifestations of the Cabibbo mixing implied by such connection, including unusual ones.
description: 8 pages, 1 figure, LaTeX; talk given at the 5th International Conference "Symmetry in Nonlinear Mathematical Physics", Kyiv (Kiev), Ukraine, June 23-29, 2003
Theory of quantum Loschmidt echoes
Creators: name: Prosen, Tomaz
name: Seligman, Thomas H.
name: Znidaric, Marko
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this paper we review our recent work on the theoretical approach to quantum Loschmidt echoes, i.e. various properties of the so called echo dynamics -- the composition of forward and backward time evolutions generated by two slightly different Hamiltonians, such as the state autocorrelation function (fidelity) and the purity of a reduced density matrix traced over a subsystem (purity fidelity). Our main theoretical result is a linear response formalism, expressing the fidelity and purity fidelity in terms of integrated time autocorrelation function of the generator of the perturbation. Surprisingly, this relation predicts that the decay of fidelity is the slower the faster the decay of correlations. In particular for a static (time-independent) perturbation, and for non-ergodic and non-mixing dynamics where asymptotic decay of correlations is absent, a qualitatively different and faster decay of fidelity is predicted on a time scale 1/delta as opposed to mixing dynamics where the fidelity is found to decay exponentially on a time-scale 1/delta^2, where delta is a strength of perturbation. A detailed discussion of a semi-classical regime of small effective values of Planck constant is given where classical correlation functions can be used to predict quantum fidelity decay. Note that the correct and intuitively expected classical stability behavior is recovered in the classical limit, as the perturbation and classical limits do not commute. The theoretical results are demonstrated numerically for two models, the quantized kicked top and the multi-level Jaynes Cummings model. Our method can for example be applied to the stability analysis of quantum computation and quantum information processing.
description: 29 pages, 11 figures ; Maribor 2002 proceedings
Additional file 1 of Epidemiology of rheumatoid arthritis in sub-Saharan Africa: a systematic review and meta-analysis protocol
Creators: name: Essouma, Mickael
name: Nkeck, Jan René
name: Endomba, Francky Teddy
name: Bigna, Jean Joel
name: Ralandison, Stéphane
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Table S1. Search strategy for PubMed. Table S2. Criteria for quality assessment in prevalence studies.
Limitations of the Hamiltonian Treatment for Collisionless Astrophysical Accretion Flows
Creators: name: Pariev, Vladimir I.
name: Blackman, Eric G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the Hamiltonian treatment of purely mechanical systems, the canonical and actual momentum of a particle are the same. In contrast, for a plasma of charged particles and electromagnetic fields, those two momenta are different. We show how this distinction is fundamental in identifying the limitations of a recent attempt by Binney (2003) to rule out two-temperature collisionless astrophysical accretion flows from Hamiltonian theory. This illustrates the Hamiltonian method for astrophysical plasmas, its relation to the equations of motion, and its role in practical calculations. We also discuss how the complete Hamiltonian treatment of a plasma should couple the particle motion to a fully dynamical treatment of the electromagnetic fields. Our results stand independent from the discussion of Quataert (2003) who argued that time scale calculated in Binney (2003) is not the equipartition time as claimed.
description: 14 pages, accepted by Baltic Astronomy, significantly expanded version, all conclusions are unchanged
Additional file 1 of VENTILatOry strategies in patients with severe traumatic brain injury: the VENTILO Survey of the European Society of Intensive Care Medicine (ESICM)
Creators: name: Picetti, Edoardo
name: Pelosi, Paolo
name: Taccone, Fabio Silvio
name: Citerio, Giuseppe
name: Mancebo, Jordi
name: Robba, Chiara
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Appendix 1, Table S1, Table S2, − Table S3. (DOCX 40 kb)
Do Sunspots Matter for Cycles in Agricultural Lending: a VEC Approach to Russian Wheat Market
Creators: name: Burakov, D.
name: Burakov, D.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural Finance
subject: Crop Production/Industries
subject: Solar activity
subject: wheat market
subject: agricultural lending
subject: crop yield
subject: vector error correction
subject: Granger causality test
subject: credit cycle

description: In this article, we test a hypothesis about the influence of sunspot cycles on cycles of agricultural lending on example of wheat market. Analyzing data on Russian wheat market for period from 1990 to 2015 we test a hypothesis of solar activity’s impact on cycles in agricultural lending in the short and long run. Using a vector error correction approach to the sample, we obtain the following results: in the long run, sunspots, wheat yield, world wheat prices, and non-performing loans (NPL) for wheat market are related. In the short run, level of non-performing wheat loans depends only on wheat yields. However, results of Granger causality test confirm that wheat yield dynamics and sunspots Granger cause non-performing bank loans in Russia, which confirms our hypothesis of solar activity importance for agricultural lending activity.
Evaluating the Quality and Accuracy of TanDEM-X Digital Elevation Models at Archaeological Sites in the Cilician Plain, Turkey
Creators: name: Erasmi, Stefan
name: Rosenbauer, Ralph
name: Buchbach, Ralf
name: Busche, Thomas
name: Rutishauser, Susanne
Publisher: name: FID GEO
Year: 2014

description: Open-Access-Publikationsfonds 2014
Additional file 2 of Urinary expression of let-7c cluster as non-invasive tool to assess the risk of disease progression in patients with high grade non-muscle invasive bladder Cancer: a pilot study
Creators: name: Spagnuolo, Manuela
name: Costantini, Manuela
name: Mariaconsiglia Ferriero
name: Varmi, Marco
name: Sperduti, Isabella
name: Regazzo, Giulia
name: Cicchillitti, Lucia
name: Méndez, Ana Belén Díaz
name: Cigliana, Giovanni
name: Pompeo, Vincenzo
name: Russo, Andrea
name: Laquintana, Valentina
name: Mastroianni, Riccardo
name: Piaggio, Giulia
name: Anceschi, Umberto
name: Brassetti, Aldo
name: Bove, Alfredo
name: Tuderti, Gabriele
name: Flammia, Rocco Simone
name: Gallucci, Michele
name: Simone, Giuseppe
name: Rizzo, Maria Giulia
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 2 : Figure S2. Let-7c cluster cut-off values for PFS probability.
Analysis of the Hopfield Model with Discrete Coupling
Creators: name: Sasaki, Ryuta
name: Aonishi, Toru
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Growing demand for high-speed Ising-computing-specific hardware has prompted a need for determining how the accuracy depends on a hardware implementation with physically limited resources. For instance, in digital hardware such as field-programmable gate arrays, as the number of bits representing the coupling strength is reduced, the density of integrated Ising spins and the speed of computing can be increased while the calculation accuracy becomes lower. To optimize the accuracy-efficiency trade-off, we have to estimate the change in performance of the Ising computing machine depending on the number of bits representing the coupling strength. In this study, we tackle this issue by focusing on the Hopfield model with discrete coupling. The Hopfield model is a canonical Ising computing model. Previous studies have analyzed the effect of a few nonlinear functions (e.g. sign) for mapping the coupling strength on the Hopfield model with statistical mechanics methods, but not the effect of discretization of the coupling strength in detail. Here, we derived the order parameter equations of the Hopfield model with discrete coupling by using the replica method and clarified the relationship between the number of bits representing the coupling strength and the critical memory capacity. In this paper, we used the replica method for the Hopfield model with general nonlinear coupling (Sompolinsky (1986)) to analyze the model with a multi-bit discrete coupling strength, and we novelly derived the de Almeida-Thouless line of the model with general nonlinear coupling.
description: 11 pages, 14 figures
The Change of Comparative Advantage of Agricultural Activities in East Java Within the Context of Asean Economic Integration
Creators: name: Esquivias, M.A.
name: Esquivias, M.A.
Publisher: name: Unknown
Year: 2017
Subjects: subject: International Relations/Trade
subject: Revealed comparative advantage
subject: manufacturing
subject: trade balance
subject: factor intensities and products mapping
subject: international trade
subject: ASEAN

description: This paper analyses changes on agricultural trade patterns of East Java, Indonesia, versus six main ASEAN exporter countries. Based on the trade flow information, there are some dynamics of comparative advantage and export specialization from 2007 to 2013 in the 545 commodities comprising the agricultural sector. Products are mapped into four-different quadrants according to their level of comparative advantage and export specialization. Advantage-specialization appears to be important features of agro-trade for ASEAN countries because most of the growth in exports is under those competitive commodities. Little diversification towards new products has been found in the recent years. Gains appear to be larger than the losses due to international openness, while opportunities within the region have not been exploited. Agro-trade in the region still focuses towards extra-ASEAN and enjoys high levels of advantage- specialization in some key commodities. A large number of commodities were found to have little competition within ASEAN.
Feasibility of the Josephson voltage and current standards on a single chip
Creators: name: Shaikhaidarov, Rais S.
name: Antonov, Ilya
name: Kim, Kyung Ho
name: Shesterikov, Artem
name: Il'ichev, Sven Linzen Evgeni V.
name: Antonov, Vladimir N.
name: Astafiev, Oleg V.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The quantum Josephson voltage standard is well established across the metrology community for many years. It relies on the synchronisation of the flux tunneling in the S/I/S Josepson junctions (JJ) with the microwave radiation (MW). The phenomenon is called the Shapiro steps. Together with the Quantum Hall resistance standard, the voltage standard forms the foundation of electrostatic metrology. The current is then defined as the ratio of the voltage and resistance. Realisation of the quantum current standard, would close the electrostatic metrological triangle of voltage-resistance-current. The current quantisation, the inverse Shapiro steps, was recently shown using the superconducting nanowires and small JJ. The effect is a synchronization of the MW with the Cooper pair tunnelling. This paves the way to combine the JJ voltage and current standards on the same chip and demonstrate feasibility of the multi-standard operation. We show the voltage and current quantization on the same chip up to frequency of 10 GHz, corresponding to the amplitudes 0.021 mV and 3.23 nA respectively. The accuracy of the voltage and current quantisation, however, is relatively low, 35 ppk and 100 ppk respectively. We discuss measures to optimise the JJs, circuit and environment to boost the amplitude and accuracy of the standards.
description: 5 figures, 5 pages, published in APL
Achieving peak brightness in an atom laser
Creators: name: Robins, N. P.
name: Figl, C.
name: Haine, S. A.
name: Morrison, A. K.
name: Jeppesen, M.
name: Hope, J. J.
name: Close, J. D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In this paper we present experimental results and theory on the first continuous (long pulse) Raman atom laser. The brightness that can be achieved with this system is three orders of magnitude greater than has been previously demonstrated in any other continuously outcoupled atom laser. In addition, the energy linewidth of a continuous atom laser can be made arbitrarily narrow compared to the mean field energy of a trapped condensate. We analyze the flux and brightness of the atom laser with an analytic model that shows excellent agreement with experiment with no adjustable parameters.
description: 4 pages, 4 black and white figures, submitted to Physical Review
Information Security and Risk Analysis in Companies of Agriresort
Creators: name: Hallová, M.
name: Polakovič, P.
name: Virágh, R.
name: Slováková, I.
name: Hallová, M.
name: Polakovič, P.
name: Virágh, R.
name: Slováková, I.
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Research and Development/Tech Change/Emerging Technologies
subject: Information and communication technologies
subject: information security
subject: security policy
subject: risks
subject: agriculture subject

description: Information and communication technologies are a tool to streamline production, and therefore they must be properly secured. The article is aimed at solving security and protection of agribusiness ICT. For a more detailed analysis of this issue there has been carried out a research. Its partial results were submitted to statistical analysis and are presented in the following article. The basic prerequisite for the implementation of any safety measures is the risk analysis when properly conducted it enables the effective implementation of safety measures and the corresponding potential threats and protected values of organization. The main aim of this paper is to assess the impact of particular forms of ICTs on protection, determination of the possible impact of the implementation of the risk and threat analysis for the enterprise.
Are there S=-2 Pentaquarks?
Creators: name: Fischer, H. G.
name: Wenig, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recent evidence for pentaquark baryons in the channels $Ξ^-π^-$, $Ξ^-π^+$ and their anti-particles claimed by the NA49 collaboration is critically confronted with the vast amount of existing data on $Ξ$ spectroscopy which was accumulated over the past decades. It is shown that the claim is at least partially inconsistent with these data. In addition two further exotic channels of the pentaquark type available in the NA49 data are investigated. It is argued that this study leads to internal inconsistency with the purported signals.
Radio & X-ray detections of GX 339--4 in quiescence using MeerKAT and Swift
Creators: name: Tremou, E.
name: Corbel, S.
name: Fender, R. P.
name: Woudt, P. A.
name: Miller-Jones, J. C. A.
name: Motta, S. E.
name: Heywood, I.
name: Armstrong, R. P.
name: Groot, P.
name: Horesh, A.
name: van der Horst, A. J.
name: Koerding, E.
name: Mooley, K. P.
name: Rowlinson, A.
name: Wijers, R. A. M. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The radio:X-ray correlation that characterises accreting black holes at all mass scales - from stellar mass black holes in binary systems to super-massive black holes powering Active Galactic Nuclei - is one of the most important pieces of observational evidence supporting the existence of a connection between the accretion process and the generation of collimated outflows - or jets - in accreting systems. Although recent studies suggest that the correlation extends down to low luminosities, only a handful of stellar mass black holes have been clearly detected, and in general only upper limits (especially at radio wavelengths) can be obtained during quiescence. We recently obtained detections of the black hole X-ray binary GX 339--4 in quiescence using the MeerKAT radio telescope and Swift X-ray Telescope instrument onboard the Neil Gehrels Swift Observatory, probing the lower end of the radio:X-ray correlation. We present the properties of accretion and of the connected generation of jets in the poorly studied low-accretion rate regime for this canonical black hole XRB system.
description: 5 pages, 2 figure, accepted to MNRAS
title: Exploring Diatoms Functional and Taxonomic Diversity on a Global Scale Through an Integrative Approach
Creators: name: Busseni, Greta
Publisher: name: The Open University
Year: 2019

description: Diatoms are a fundamental component of the oceanic ecosystem. Because of the massive primary production they are responsible for they play a pivotal role in several biogeochemical cycles as well as in the marine food web. This high relevance is due to their global distribution together with their seasonal dominance in many of the planktonic communities. This ecological ‘success’ is granted by their diversity, being diatoms the most diverse microalgae taxa. Notwithstanding the relevant role of this taxa, little is known about their biology and ecology, given the lack of large scale observations and the large number of uncultured species. Here I describe global scale diatom diversity exploring in parallel their taxonomic and their functional diversity. Different methodological frameworks were developed to measure both classes of diversity from meta-omic data. As results, herein it is described the first assessment of diatom taxonomic richness at a global scale together with its statistical modeling using a machine-learning approach. Moreover, a completely new approach to characterize the functional diversity is provided. It is based on the phylogenies of nitrogen transporter marker gene families that proved to be optimal markers of functional traits such as size and resource utilization traits. Finally, the outcome of a numerical modeling exercise was compared to omic taxonomic data with the aim of improving the diatom model types. The whole work has been developed exploiting the unprecedented amount of data provided by the Tara Oceans expedition.
Ergenstrema Paperna 1964
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Tetraonchidae
Ergenstrema

description: Ergenstrema sp.*
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Campeche. Laguna de Términos: Symphurus plagiusa (Rodríguez-González & Vidal-Martínez 2008).
SPECIMENS IN COLLECTIONS. — None.
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 516, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
Additional file 1 of Urinary expression of let-7c cluster as non-invasive tool to assess the risk of disease progression in patients with high grade non-muscle invasive bladder Cancer: a pilot study
Creators: name: Spagnuolo, Manuela
name: Costantini, Manuela
name: Mariaconsiglia Ferriero
name: Varmi, Marco
name: Sperduti, Isabella
name: Regazzo, Giulia
name: Cicchillitti, Lucia
name: Méndez, Ana Belén Díaz
name: Cigliana, Giovanni
name: Pompeo, Vincenzo
name: Russo, Andrea
name: Laquintana, Valentina
name: Mastroianni, Riccardo
name: Piaggio, Giulia
name: Anceschi, Umberto
name: Brassetti, Aldo
name: Bove, Alfredo
name: Tuderti, Gabriele
name: Flammia, Rocco Simone
name: Gallucci, Michele
name: Simone, Giuseppe
name: Rizzo, Maria Giulia
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1 : Figure S1. Association analysis between tissue let-7c cluster and tumor stage.
Quality assessment of replacement stones for the Cologne Cathedral: mineralogical and petrophysical requirements
Creators: name: Graue, B.
name: Siegesmund, S.
name: Middendorf, B.
Publisher: name: Springer-Verlag
Year: 2011

description: Owing to its long building history, different types of building stones comprised the construction of the Cologne Cathedral. Severe damage is observed on the different stones, e.g., sandstones, carbonate, and volcanic rocks, especially when the different stone materials neighbor the medieval “Drachenfels trachyte” from the “Siebengebirge”. The question arises, “Is the insufficient compatibility of the implemented building materials causatively related to the strong decay of the Drachenfels trachyte?” The present investigations focus on the petrography and mineralogical composition of eight different stones from the Cologne Cathedral. Petrophysical data, i.e., phase content, moisture and thermal characteristics as well as strength properties are determined and discussed in correlation to each other, showing that not only in terms of lithology great differences exist, but also the petrophysical properties strongly diverge. The ascertained parameters are discussed in view of the deterioration behavior and decay mechanisms of the different stones. To evaluate the compatibility of original, replacement and modern building materials, the properties of the investigated stones are compared to those of Drachenfels trachyte by means of constraints given in the literature. Besides optical properties, petrophysical criteria are also defined as well as strength values. It could be shown that primarily moisture properties, i.e., capillary and sorptive water uptake, water saturation, drying processes and moisture dilatation can be addressed to the deterioration processes.
A deep learning approach for lower back-pain risk prediction during manual lifting
Creators: name: Snyder, Kristian
name: Thomas, Brennan
name: Lu, Ming-Lun
name: Jha, Rashmi
name: Barim, Menekse S.
name: Hayden, Marie
name: Werren, Dwight
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Occupationally-induced back pain is a leading cause of reduced productivity in industry. Detecting when a worker is lifting incorrectly and at increased risk of back injury presents significant possible benefits. These include increased quality of life for the worker due to lower rates of back injury and fewer workers' compensation claims and missed time for the employer. However, recognizing lifting risk provides a challenge due to typically small datasets and subtle underlying features in accelerometer and gyroscope data. A novel method to classify a lifting dataset using a 2D convolutional neural network (CNN) and no manual feature extraction is proposed in this paper; the dataset consisted of 10 subjects lifting at various relative distances from the body with 720 total trials. The proposed deep CNN displayed greater accuracy (90.6%) compared to an alternative CNN and multilayer perceptron (MLP). A deep CNN could be adapted to classify many other activities that traditionally pose greater challenges in industrial environments due to their size and complexity.
description: 21 pages, 10 figures
Euryhaliotrema dunlape Kritsky & Bakenhaster 2011
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Dactylogyridae
Euryhaliotrema
Euryhaliotrema dunlape

description: Euryhaliotrema dunlape Kritsky & Bakenhaster, 2011 *
 Euryhaliotrema dunlape Kritsky & Bakenhaster, 2011: 62.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Veracruz. El Conchal, Laguna de Alvarado: Archosargus probatocephalus (Montoya-Mendoza et al. 2015).
 SPECIMENS IN COLLECTIONS. — CNHE (9694-5).
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 517, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
Duality and Normal Parts of Operator Modules
Creators: name: Magajna, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46L07, 46H25 (Primary), 47L25 (Secondary)

description: For an operator bimodule $X$ over von Neumann algebras $A\subseteq\bh$ and $B\subseteq\bk$, the space of all completely bounded $A,B$-bimodule maps from $X$ into $\bkh$, is the bimodule dual of $X$. Basic duality theory is developed with a particular attention to the Haagerup tensor product over von Neumann algebras. To $X$ a normal operator bimodule $\nor{X}$ is associated so that completely bounded $A,B$-bimodule maps from $X$ into normal operator bimodules factorize uniquely through $\nor{X}$. A construction of $\nor{X}$ in terms of biduals of $X$, $A$ and $B$ is presented. Various operator bimodule structures are considered on a Banach bimodule admitting a normal such structure.
description: The first version of the paper has been split into two parts, corrected and a few results added. This is the first part
Local vibrational modes of Si vacancy spin qubits in SiC
Creators: name: Shang, Z.
name: Hashemi, A.
name: Berencén, Y.
name: Komsa, H. -P.
name: Erhart, P.
name: Krasheninnikov, A. V.
name: Astakhov, G. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Silicon carbide is a very promising platform for quantum applications because of extraordinary spin and optical properties of point defects in this technologically-friendly material. These properties are strongly influenced by crystal vibrations, but the exact relationship between them and the behavior of spin qubits is not fully investigated. We uncover the local vibrational modes of the Si vacancy spin qubits in as-grown 4H-SiC. We apply the resonant microwave field to isolate the contribution from one particular type of defects, the so-called V2 center, and observe the zero-phonon line together with seven equally-separated phonon replicas. Furthermore, we present first-principles calculations of the photoluminescence lineshape, which are in excellent agreement with our experimental data. To boost up the calculation accuracy and decrease the computation time, we extract the force constants using machine learning algorithms. This allows us to identify dominant modes in the lattice vibrations coupled to an excited electron during optical emission in the Si vacancy. The resonance phonon energy of 36 meV and the Debye-Waller factor of about 6% are obtained. We establish experimentally that the activation energy of the optically-induced spin polarization is given by the local vibrational energy. Our findings give insight into the coupling of electronic states to vibrational modes in SiC spin qubits, which is essential to predict their spin, optical, mechanical and thermal properties. The approach described can be applied to a large variety of spin defects with spectrally overlapped contributions in SiC as well as in other 3D and 2D materials.
description: 9 pages, 6 figures, corrected references
py4DSTEM: a software package for multimodal analysis of four-dimensional scanning transmission electron microscopy datasets
Creators: name: Savitzky, Benjamin H
name: Hughes, Lauren A
name: Zeltmann, Steven E
name: Brown, Hamish G
name: Zhao, Shiteng
name: Pelz, Philipp M
name: Barnard, Edward S
name: Donohue, Jennifer
name: DaCosta, Luis Rangel
name: Pekin, Thomas C.
name: Kennedy, Ellis
name: Janish, Matthew T
name: Schneider, Matthew M
name: Herring, Patrick
name: Gopal, Chirranjeevi
name: Anapolsky, Abraham
name: Ercius, Peter
name: Scott, Mary
name: Ciston, Jim
name: Minor, Andrew M
name: Ophus, Colin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Scanning transmission electron microscopy (STEM) allows for imaging, diffraction, and spectroscopy of materials on length scales ranging from microns to atoms. By using a high-speed, direct electron detector, it is now possible to record a full 2D image of the diffracted electron beam at each probe position, typically a 2D grid of probe positions. These 4D-STEM datasets are rich in information, including signatures of the local structure, orientation, deformation, electromagnetic fields and other sample-dependent properties. However, extracting this information requires complex analysis pipelines, from data wrangling to calibration to analysis to visualization, all while maintaining robustness against imaging distortions and artifacts. In this paper, we present py4DSTEM, an analysis toolkit for measuring material properties from 4D-STEM datasets, written in the Python language and released with an open source license. We describe the algorithmic steps for dataset calibration and various 4D-STEM property measurements in detail, and present results from several experimental datasets. We have also implemented a simple and universal file format appropriate for electron microscopy data in py4DSTEM, which uses the open source HDF5 standard. We hope this tool will benefit the research community, helps to move the developing standards for data and computational methods in electron microscopy, and invite the community to contribute to this ongoing, fully open-source project.
description: 32 pages, 18 figures
Self-consistent solution for the polarized vacuum in a no-photon QED model
Creators: name: Hainzl, Christian
name: Lewin, Mathieu
name: Sere, Eric
Publisher: name: arXiv
Year: 2004
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the Bogoliubov-Dirac-Fock model introduced by Chaix and Iracane ({\it J. Phys. B.}, 22, 3791--3814, 1989) which is a mean-field theory deduced from no-photon QED. The associated functional is bounded from below. In the presence of an external field, a minimizer, if it exists, is interpreted as the polarized vacuum and it solves a self-consistent equation. In a recent paper math-ph/0403005, we proved the convergence of the iterative fixed-point scheme naturally associated with this equation to a global minimizer of the BDF functional, under some restrictive conditions on the external potential, the ultraviolet cut-off $Λ$ and the bare fine structure constant $α$. In the present work, we improve this result by showing the existence of the minimizer by a variational method, for any cut-off $Λ$ and without any constraint on the external field. We also study the behaviour of the minimizer as $Λ$ goes to infinity and show that the theory is "nullified" in that limit, as predicted first by Landau: the vacuum totally kills the external potential. Therefore the limit case of an infinite cut-off makes no sense both from a physical and mathematical point of view. Finally, we perform a charge and density renormalization scheme applying simultaneously to all orders of the fine structure constant $α$, on a simplified model where the exchange term is neglected.
description: Final version, to appear in J. Phys. A: Math. Gen
Lyman Alpha Line Spectra of the First Galaxies: Dependence on Observed Direction to the Underlying CDM Filament
Creators: name: Kobayashi, Masakazu A. R.
name: Kamaya, Hideyuki
name: Yonehara, Atsunori
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The first galaxies in the Universe are built up where cold dark matter (CDM) forms large scale filamentary structure. Although the galaxies are expected to emit numerous Lya photons, they are surrounded by plentiful neutral hydrogen with a typical optical depth for Lya of ~10^5 (HI halos) before the era of cosmological reionization. The HI halo almost follows the cosmological Hubble expansion with some anisotropic corrections around the galaxy because of the gravitational attraction by the underlying CDM filament. In this paper, we investigate the detectability of the Lya emissions from the first galaxies, examining their dependence on viewing angles. Solving the Lya line transfer problem in an anisotropically expanding HI halo, we show that the escape probability from the HI halo is the largest in direction along the filament axis. If the Lya source is observed with a narrow-band filter, the difference of apparent Lya line luminosities among viewing angles can be a factor of > 40 at an extreme case. Furthermore, we evaluate the predicted physical features of the Lya sources and flux magnification by gravitational lensing effect due to clusters of galaxies along the filament. We conclude that, by using the next generation space telescopes like the JWST, the Lya emissions from the first galaxies whose CDM filament axes almost face to us can be detected with the S/N of > 10.
description: 21 pages, 4 figures, 1 table. Accepted for publication in Astrophysical Journal
Euryhaliotrema sagmatum Kritsky & Boeger 2002
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Dactylogyridae
Euryhaliotrema
Euryhaliotrema sagmatum

description: Euryhaliotrema sagmatum Kritsky & Boeger, 2002
 Euryhaliotrema sagmatum Kritsky & Boeger, 2002: 11.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Bahía de Chamela: Umbrina xanti (Kritsky & Boeger 2002).
 SPECIMENS IN COLLECTIONS. — CNHE (4015-6) (H, P), HWML (16429)(P), USNM (91422)(P), MNHN 26HG (Tg157-Tg158)(P).
REMARK
 This material was recorded as Ancyropcephalidae gen. sp. by Pérez-Ponce de León et al. (1999), and re-identified as Euryhaliotrema sagmatum by Kritsky & Boeger (2002).
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 517, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694
Quasi-compact vortices
Creators: name: Bazeia, D.
name: Marques, M. A.
name: Menezes, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We deal with planar vortex structures in Maxwell-Higgs models in the presence of a generalized magnetic permeability. The model under investigation engenders a real parameter that controls the behavior of the tail of the solutions and of the quantities associated to them. As the parameter gets larger, the solutions attain their boundary values faster, unveiling the existence of a peculiar feature, the presence of double exponential tails. However, the solutions are not compact so we call them quasi-compact vortices.
description: 6 pages, 4 figures; published in EPL
Sato-Crutchfield formulation for some Evolutionary Games
Creators: name: Ahmed, E.
name: Hegazi, A. S.
name: Elgazzar, A. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: The Sato-Crutchfield equations are studied analytically and numerically. The Sato-Crutchfield formulation is corresponding to losing memory. Then Sato-Crutchfield formulation is applied for some different types of games including hawk-dove, prisoner's dilemma and the battle of the sexes games. The Sato-Crutchfield formulation is found not to affect the evolutionarily stable strategy of the ordinary games. But choosing a strategy becomes purely random independent on the previous experiences, initial conditions, and the rules of the game itself. Sato-Crutchfield formulation for the prisoner's dilemma game can be considered as a theoretical explanation for the existence of cooperation in a population of defectors.
description: 9 pages, 3 figures, accepted for Int. J. Mod. Phys. C
Einstein-de Haas Effect of Topological Magnons
Creators: name: Li, Jun
name: Datta, Trinanjan
name: Yao, Dao-Xin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We predict the existence of Einstein-de Haas effect in topological magnon insulators. Temperature variation of angular momentum in the topological state shows a sign change behavior, akin to the low temperature thermal Hall conductance response. This manifests itself as a macroscopic mechanical rotation of the material hosting topological magnons. We show that an experimentally observable Einstein-de Haas effect can be measured in the square-octagon, the kagome, and the honeycomb lattices. Albeit, the effect is the strongest in the square-octagon lattice. We treat both the low and the high temperature phases using spin wave and Schwinger boson theory, respectively. We propose an experimental set up to detect our theoretical predictions. We suggest candidate square-octagon materials where our theory can be tested.
description: 15 pages, 10 figures
Sustainable Travel : The Future of Tourism : An Analysis of Expedia, Inc.’s Business Strategy
Creators: name: Schofield, Laura
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3507
subject: Strategy, management and organisational behaviour
classificationCode: 3508
subject: Tourism
subject: FOS: Economics and business

description: Description to be added
Understanding Forest Health with Remote Sensing - Part I - A Review of Spectral Traits, Processes and Remote-Sensing Characteristics
Creators: name: Lausch, Angela
name: Erasmi, Stefan
name: King, Douglas
name: Magdon, Paul
name: Heurich, Marco
Publisher: name: FID GEO
Year: 2016

description: Anthropogenic stress and disturbance of forest ecosystems (FES) has been increasing at all scales from local to global. In rapidly changing environments, in-situ terrestrial FES monitoring approaches have made tremendous progress but they are intensive and often integrate subjective indicators for forest health (FH). Remote sensing (RS) bridges the gaps of these limitations, by monitoring indicators of FH on different spatio-temporal scales, and in a cost-effective, rapid, repetitive and objective manner. In this paper, we provide an overview of the definitions of FH, discussing the drivers, processes, stress and adaptation mechanisms of forest plants, and how we can observe FH with RS. We introduce the concept of spectral traits (ST) and spectral trait variations (STV) in the context of FH monitoring and discuss the prospects, limitations and constraints. Stress, disturbances and resource limitations can cause changes in FES taxonomic, structural and functional diversity; we provide examples how the ST/STV approach can be used for monitoring these FES characteristics. We show that RS based assessments of FH indicators using the ST/STV approach is a competent, affordable, repetitive and objective technique for monitoring. Even though the possibilities for observing the taxonomic diversity of animal species is limited with RS, the taxonomy of forest tree species can be recorded with RS, even though its accuracy is subject to certain constraints. RS has proved successful for monitoring the impacts from stress on structural and functional diversity. In particular, it has proven to be very suitable for recording the short-term dynamics of stress on FH, which cannot be cost-effectively recorded using in-situ methods. This paper gives an overview of the ST/STV approach, whereas the second paper of this series concentrates on discussing in-situ terrestrial monitoring, in-situ RS approaches and RS sensors and techniques for measuring ST/STV for FH.
Fluid-structure interaction modeling of blood flow in the pulmonary arteries using the unified continuum and variational multiscale formulation
Creators: name: Liu, Ju
name: Yang, Weiguang
name: Lan, Ingrid S.
name: Marsden, Alison L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this work, we present a computational fluid-structure interaction (FSI) study for a healthy patient-specific pulmonary arterial tree using the unified continuum and variational multiscale (VMS) formulation we previously developed. The unified framework is particularly well-suited for FSI, as the fluid and solid sub-problems are addressed in essentially the same manner and can thus be uniformly integrated in time with the generalized-$α$ method. In addition, the VMS formulation provides a mechanism for large-eddy simulation in the fluid sub-problem and pressure stabilization in the solid sub-problem. The FSI problem is solved in a quasi-direct approach, in which the pressure and velocity in the unified continuum body are first solved, and the solid displacement is then obtained via a segregated algorithm and prescribed as a boundary condition for the mesh motion. Results of the pulmonary arterial FSI simulation are presented and compared against those of a rigid wall simulation.
Structural Elucidation of α-Cyclodextrin-Succinic Acid Pseudo Dodecahydrate: Expanding the Packing Types of α-Cyclodextrin Inclusion Complexes
Creators: name: Saouane, Sofiane
name: Fabbiani, Francesca
Publisher: name: FID GEO
Year: 2015

description: This paper reports a new packing type of -cyclodextrin inclusion complexes, obtained here with succinic acid under low-temperature crystallization conditions. The structure of the 1:1 complex is characterized by heavy disorder of the guest, the solvent, and part of the host. The crystal packing belongs to the known channel-type structure; the basic structural unit is composed of cyclodextrin trimers, as opposed to the known isolated molecular or dimeric constructs, packed along the c-axis. Each trimer is made of crystallographically independent molecules assembled in a stacked vase-like cluster. A multi-temperature single-crystal X-ray diffraction analysis reveals the presence of dynamic disorder.
Euryhaliotrema torquecirrus
Creators: name: Mendoza-Garfias, Berenit
name: García-Prieto, Luis
name: León, Gerardo Pérez-Ponce De
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Platyhelminthes
Monogenea
Dactylogyridea
Dactylogyridae
Euryhaliotrema
Euryhaliotrema torquecirrus

description: Euryhaliotrema torquecirrus (Zhukov, 1976)
 Haliotrema torquecirrus Zhukov, 1976: 41.
 Euryhaliotrema torquecirrus – Kritsky & Boeger 2002: 11.
HOSTS. — Actinopterygii (gills).
 GEOGRAPHIC DISTRIBUTION. — Campeche. Golfo de Campeche: Ocyurus chrysurus, Lutjanus synagris, Lutjanus mahogoni (Zhukov 1976) **.
 Veracruz. Arrecife Anegada de Afuera, Arrecife Isla de Enmedio: O. chrysurus (Montoya-Mendoza et al. 2014b), Arrecife Santiaguillo: L. synagris (Montoya-Mendoza et al. 2016).
 SPECIMENS IN COLLECTIONS. — CNHE (9144-5; 10223); USNM (91432); collection not indicated (H, P).
REMARK
 The material from Campeche was recorded as Haliotrema torquecirrus by Zhukov (1976) and transferred to Euryhaliotrema by Kritsky & Boeger (2002).
description: Published as part of Mendoza-Garfias, Berenit, García-Prieto, Luis & León, Gerardo Pérez-Ponce De, 2017, Checklist of the Monogenea (Platyhelminthes) parasitic in Mexican aquatic vertebrates, pp. 501-598 in Zoosystema 39 (4) on page 517, DOI: 10.5252/z2017n4a5, http://zenodo.org/record/4578694