cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
USING MODERN METHODS IN TEACHING ENGLISH
Creators: name: Ortiqova Marvarida Bozorboy qizi  Fergana State University Faculty of Foreign Languages, 3nd year student of   philology and language teaching, English language learning
Publisher: name: Zenodo
Year: 2024

description: This article is about the use of modern methods in teaching English, the fact that language is a complex communication system , using effective methods of learning English , learners can easily understand the use of English verbs, memorizing the rules of using articles and the basic principles of sentence construction . information provided.

KEY WORDS: English , complex communication , internet , studies , pedagogy , psychologist .
Atributos del conjunto de datos y clases
Creators: name: Serrano-Mamolar, Ana
name: Miguel Alonso, Inés
name: Checa, David
name: Pardo-Aguilar, Carlos
Publisher: name: figshare
Year: 2023
Subjects: Stream and sensor data

description: En este trabajo se creó un conjunto de datos para recopilar información de distintas experiencias de RV llevadas a cabo con 63 sujetos. Dicho conjunto incluía dos tipos de datos: 1) datos globales de cada ejercicio; y 2) datos de rendimiento del usuario. El conjunto de datos utilizado para la experimentación en este trabajo se resume en esta tabla.
Ethics, Transparency, Research Integrity, Misconduct: Where Do Marie Curie Alumni Stand?
Creators: name: Cahill, Brian
Publisher: name: Zenodo
Year: 2016

description: ESOF 2016 Marie Skłodowska-Curie Actions satellite event "Research and society" 28-29 July 2016, Manchester, United Kingdom Session: Ethics, transparency, research integrity, misconduct: Where do I stand?
 Scandals of scientific plagiarism have made the headlines in the past few years. The collection and interpretation of data is also under scrutiny. Conducting science with good ethics, in a transparent manner is more important than ever. Have you (or your research group) adopted adequate measures to avoid mistakes? What can you do as a researcher to contribute to a healthy research environment?
description: {"references": ["Christoph Meier, How ETH deals with scientific misconduct: Research off the rails, https://archiv.ethlife.ethz.ch/e/articles/campuslife/faelschungendiek.html"]}
Mechanical modeling and testing of biological membranes
Creators: name: Staat, Manfred
name: Topcu, Murat
name: Sponagel, Stefan
Publisher: name: figshare
Year: 2022
Subjects: Biomechanical engineering
Biomaterials
Medical devices

description: Proceedings of the 3rd World Congress on Regenerative Medicine. 2007.09. Leipzig, Germany
Alike, but Not in the Same League: Rural Municipalities and EU Funds in Romania
Creators: name: Marin, Monica
name: Glăvan, Eugen
name: Chiș, Alin
name: Corad, Bogdan
Publisher: name: Zenodo
Year: 2023
Subjects: rural
local government
EU funds
Romania
programming period

description: The presentation at 31th NISPAcee Annual Conference “The Future of Public Administration Enabled Through Emerging Technologies”, May 24-27, 2023, Belgrade, Serbia.
Shear thickening in granular suspensions: inter-particle friction and dynamically correlated clusters
Creators: name: Heussinger, Claus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We consider the shear rheology of concentrated suspensions of non-Brownian frictional particles. The key result of our study is the emergence of a pronounced shear-thickening regime, where frictionless particles would normally undergo shear-thinning. We clarify that shear thickening in our simulations is due to enhanced energy dissipation via frictional inter-particle forces. Moreover, we evidence the formation of dynamically correlated particle-clusters of size $ξ$, which contribute to shear thickening via an increase in \emph{viscous} dissipation. A scaling argument gives $η\sim ξ^2$, which is in very good agreement with the data.
A sigmoid function to characterise the mechanical behaviour of rubber materials
Creators: name: Topcu, Murat
name: Madabhushi, Gopal Santana Phani
Publisher: name: figshare
Year: 2022
Subjects: Polymers and plastics

description: A new phenomenological hybrid chain network model for polymer based materials has been developed. At the microscopic scale, the “beta function for growth rate”, as introduced by Yin et al. [30,29] for describing growth, has been taken to describe the sigmoidal shape of the stiffness rise to the breaking point at high strains of a single chain molecule. In this paper the model is redefined and used to model an entropy-elastic (rubber elastic) behaviour in relatively small strain regimes. In order to capture large strain regimes while maintaining the overall sigmoidal shape of the stiffness rise the model is extended by an energy-elastic term. On the macroscopic scale, the network of polymer chains are represented by isotropic three-chain and eight-chain network models that are linked together by a weighting function for describing the transition between them.
 The proposed model has been calibrated for different polymers simultaneously in the extensional range. It successfully predicted the experimental findings from literature, Treloar [21,22], other material data for Spider silk reported by Denny [4] and data of natural rubber compounds of different hardnesses reported by Koshal [12].
Characterizing the Frequency of ADS-B Aircraft Operations: Preliminary Analysis of the Boston Logan Mode C Veil
Creators: name: Capuder, Lawrence
name: Weinert, Andrew
Publisher: name: Zenodo
Year: 2023
Subjects: aviation
ads-b

description: Analysis of discrete transponder replies received from an ASR-9 radar that were correlated with ADS-B Out in a section of airspace near Boston for 4 Mondays in 2022: 5/23, 5/30, 6/6, 6/13. Approximately 11% of discrete code beacon replies, below 1000 feet AGL and within part of the Mode C Veil, did not have a correlated ADS-B reply. These results do not support preconceived assumptions about nearly complete ADS-B equipage rates inside the Boston Mode C Veil. However any conclusions are localized, to this location and time, and may not apply to other local airspaces or the broader NAS
description: DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited. This material is based upon work supported by the Federal Aviation Administration under Air Force Contract No. FA8702-15-D-0001. Any opinions, findings, conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the Federal Aviation Administration. This document is derived from work done for the FAA (and possibly others), it is not the direct product of work done for the FAA. The information provided herein may include content supplied by third parties. Although the data and information contained herein has been produced or processed from sources believed to be reliable, the Federal Aviation Administration makes no warranty, expressed or implied, regarding the accuracy, adequacy, completeness, legality, reliability, or usefulness of any information, conclusions or recommendations provided herein. Distribution of the information contained herein does not constitute an endorsement or warranty of the data or information provided herein by the Federal Aviation Administration or the U.S. Department of Transportation. Neither the Federal Aviation Administration nor the U.S. Department of Transportation shall be held liable for any improper or incorrect use of the information contained herein and assumes no responsibility for anyone's use of the information. The Federal Aviation Administration and U.S. Department of Transportation shall not be liable for any claim for any loss, harm, or other damages arising from access to or use of data information, including without limitation any direct, indirect, incidental, exemplary, special or consequential damages, even if advised of the possibility of such damages. The Federal Aviation Administration shall not be liable for any decision made or action taken, in reliance on the information contained herein.
ALMA observations of feeding and feedback in nearby Seyfert galaxies: an AGN-driven outflow in NGC 1433
Creators: name: Combes, F.
name: Garcia-Burillo, S.
name: Casasola, V.
name: Hunt, L. K.
name: Krips, M.
name: Baker, A. J.
name: Boone, F.
name: Eckart, A.
name: Marquez, I.
name: Neri, R.
name: Schinnerer, E.
name: Tacconi, L. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report ALMA observations of CO(3-2) emission in the Seyfert 2 double-barred galaxy NGC1433, at the unprecedented spatial resolution of 0.5"=24 pc. Our aim is to probe AGN feeding and feedback phenomena through the morphology and dynamics of the gas inside the central kpc. The CO map, which covers the whole nuclear region (nuclear bar and ring), reveals a nuclear gaseous spiral structure, inside the nuclear ring encircling the nuclear stellar bar. This gaseous spiral is well correlated with the dusty spiral seen in Hubble Space Telescope images. The nuclear spiral winds up in a pseudo-ring at 200 pc radius, which might correspond to the inner ILR. Continuum emission is detected at 0.87 mm only at the very centre, and its origin is more likely thermal dust emission than non-thermal emission from the AGN. It might correspond to the molecular torus expected to exist in this Seyfert 2 galaxy. The HCN(4-3) and HCO+(4-3) lines were observed simultaneously, but only upper limits are derived, with a ratio to the CO(3-2) line lower than 1/60 at 3sigma, indicating a relatively low abundance of very dense gas. The kinematics of the gas over the nuclear disk reveal rather regular rotation only slightly perturbed by streaming motions due to the spiral; the primary and secondary bars are too closely aligned with the galaxy major or minor axis to leave a signature in the projected velocities. Near the nucleus, there is an intense high-velocity CO emission feature redshifted to 200 km/s (if located in the plane), with a blue-shifted counterpart, at 2" (100 pc) from the centre. While the CO spectra are quite narrow in the centre, this wide component is interpreted as an outflow involving a molecular mass of 3.6 10^6 Mo and a flow rate 7 Mo/yr. The flow could be in part driven by the central star formation, but is mainly boosted by the AGN through its wind or radio jets.
description: 11 pages, 9 figures, Accepted in Astronomy and Astrophysics
Resonant periodic orbits in the exoplanetary systems
Creators: name: Antoniadou, K. I.
name: Voyatzis, G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The planetary dynamics of $4/3$, $3/2$, $5/2$, $3/1$ and $4/1$ mean motion resonances is studied by using the model of the general three body problem in a rotating frame and by determining families of periodic orbits for each resonance. Both planar and spatial cases are examined. In the spatial problem, families of periodic orbits are obtained after analytical continuation of vertical critical orbits. The linear stability of orbits is also examined. Concerning initial conditions nearby stable periodic orbits, we obtain long-term planetary stability, while unstable orbits are associated with chaotic evolution that destabilizes the planetary system. Stable periodic orbits are of particular importance in planetary dynamics, since they can host real planetary systems. We found stable orbits up to $60^\circ$ of mutual planetary inclination, but in most families, the stability does not exceed $20^\circ$-$30^\circ$, depending on the planetary mass ratio. Most of these orbits are very eccentric. Stable inclined circular orbits or orbits of low eccentricity were found in the $4/3$ and $5/2$ resonance, respectively.
description: Accepted for publication in Astrophysics and Space Science. Link to the published article on Springer's website was inserted
BibliotecarIA in-the-loop: oportunidades y desafíos de la Inteligencia Artificial en instituciones GLAM
Creators: name: Fresco-Santalla, Ana
Publisher: name: Zenodo
Year: 2023
Subjects: inteligencia artificial
aprendizaje automático
instituciones GLAM
bibliotecas
patrimonio cultural

description: La expresión Inteligencia Artificial fue elegida palabra del año en 2022 (FundéuRAE), lo que evidencia la popularidad que ha ido ganando tanto dentro como fuera de Internet. Más allá del imaginario colectivo, en el que es identificada como una máquina pensante, la Inteligencia Artificial (en adelante IA) es –en realidad– un conjunto de tecnologías con aplicaciones transversales en áreas diversas. Este póster es una aproximación a la IA: qué es, qué tecnologías engloba y para qué sirven, prestando especial atención a sus aplicaciones en el trabajo que realizan los profesionales del sector GLAM (Galleries, Libraries, Archives and Museums). Aunque la IA ofrece grandes oportunidades para mejorar tanto los servicios como los procesos de trabajo en nuestras instituciones, existen importantes barreras susceptibles de retrasar su adopción. Estos obstáculos, incluido el impacto que la IA podría suponer para la profesión, así como los dilemas éticos suscitados por su uso, también son planteados en el póster.
description: Póster presentado en las XVIII Jornadas Españolas de Información y Documentación (JEID23)
Coupling Electromagnetism to Global Charge
Creators: name: Guendelman, Eduardo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that an alternative to the standard scalar QED is possible. In this new version there is only global gauge invariance as far as the charged scalar fields are concerned although local gauge invariance is kept for the electromagnetic field. The electromagnetic coupling has the form $j_μ(A^μ +\partial^μB)$ where $B$ is an auxiliary field and the current $j_μ$ is $A_μ$ independent so that no "sea gull terms" are introduced. In a model of this kind spontaneous breaking of symmetry does not lead to photon mass generation, instead the Goldstone boson becomes a massless source for the electromagnetic field. Infrared questions concerning the theory when spontaneous symmetry breaking takes place and generalizations to global vector QED are discussed. In this framework Q-Balls and other non topological solitons that owe their existence to a global U(1) symmetry can be coupled to electromagnetism and could represent multiply charged particles now in search in the LHC. Furthermore, we give an example where an "Emergent" Global Scalar QED can appear from an axion photon system in an external magnetic field. Finally, formulations of Global scalar QED that allow perturbative expansions without sea gulls are developed.
description: manuscript considerably enlarged from 12 to 28 pages, many details worked out in details now
General relativistic hydrodynamics in curvilinear coordinates
Creators: name: Montero, Pedro J.
name: Baumgarte, Thomas W.
name: Müller, Ewald
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we report on what we believe is the first successful implementation of relativistic hydrodynamics, coupled to dynamical spacetimes, in spherical polar coordinates without symmetry assumptions. We employ a high-resolution shock-capturing scheme, which requires that the equations be cast in flux-conservative form. One example of such a form is the :Valencia" formulation, which has been adopted in numerous applications, in particular in Cartesian coordinates. Here we generalize this formulation to allow for a reference-metric approach, which provides a natural framework for calculations in curvilinear coordinates. In spherical polar coordinates, for example, it allows for an analytical treatment of the singular r and sin(θ) terms that appear in the equations. We experiment with different versions of our generalized Valencia formulation in numerical implementations of relativistic hydrodynamics for both fixed and dynamical spacetimes. We consider a number of different tests -- non-rotating and rotating relativistic stars, as well as gravitational collapse to a black hole -- to demonstrate that our formulation provides a promising approach to performing fully relativistic astrophysics simulations in spherical polar coordinates.
description: 14 pages, 8 figures, version to be published in PRD
Rain water transport and storage in a model sandy soil with hydrogel particle additives
Creators: name: Wei, Y.
name: Durian, D. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study rain water infiltration and drainage in a dry model sandy soil with superabsorbent hydrogel particle additives by measuring the mass of retained water for non-ponding rainfall using a self-built 3D laboratory set-up. In the pure model sandy soil, the retained water curve measurements indicate that instead of a stable horizontal wetting front that grows downward uniformly, a narrow fingered flow forms under the top layer of water-saturated soil. This rain water channelization phenomenon not only further reduces the available rain water in the plant root zone, but also affects the efficiency of soil additives, such as superabsorbent hydrogel particles. Our studies show that the shape of the retained water curve for a soil packing with hydrogel particle additives strongly depends on the location and the concentration of the hydrogel particles in the model sandy soil. By carefully choosing the particle size and distribution methods, we may use the swollen hydrogel particles to modify the soil pore structure, to clog or extend the water channels in sandy soils, or to build water reservoirs in the plant root zone.
A generalized shear-lag theory for elastic stress transfer between matrix and fibres having a variable radius
Creators: name: Topcu, Murat
name: Madabhushi, Gopal Santana Phani
name: Staat, Manfred
Publisher: name: figshare
Year: 2022
Subjects: Numerical modelling and mechanical characterisation

description: A generalized shear-lag theory for fibres with variable radius is developed to analyse elastic fibre/matrix stress transfer. The theory accounts for the reinforcement of biological composites, such as soft tissue and bone tissue, as well as for the reinforcement of technical composite materials, such as fibre-reinforced polymers (FRP). The original shear-lag theory proposed by Cox in 1952 is generalized for fibres with variable radius and with symmetric and asymmetric ends. Analytical solutions are derived for the distribution of axial and interfacial shear stress in cylindrical and elliptical fibres, as well as conical and paraboloidal fibres with asymmetric ends. Additionally, the distribution of axial and interfacial shear stress for conical and paraboloidal fibres with symmetric ends are numerically predicted. The results are compared with solutions from axisymmetric finite element models. A parameter study is performed, to investigate the suitability of alternative fibre geometries for use in FRP.
Direct Chargino-Neutralino Production at the LHC: Interpreting the Exclusion Limits in the Complex MSSM
Creators: name: Bharucha, A.
name: Heinemeyer, S.
name: von der Pahlen, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We re-assess the exclusion limits on the parameters describing the supersymmetric (SUSY) electroweak sector of the MSSM obtained from the search for direct chargino-neutralino production at the LHC. We start from published limits obtained in simplified models, where for the case of heavy sleptons the relevant branching ratio, BR(neu2->neu1 Z), is set to one. We show how the decay mode neu2->neu1 h, which cannot be neglected in any realistic model once kinematically allowed, substantially reduces the excluded parameter region. We analyze the dependence of the excluded regions on the phase of the gaugino soft SUSY-breaking mass parameter, M_1, on the mass of the light scalar tau, on tb as well as on the squark and slepton mass scales. Large reductions in the ranges of parameters excluded can be observed in all scenarios. The branching ratios of charginos and neutralinos are evaluated using a full NLO calculation for the complex MSSM. The size of the effects of the NLO calculation on the exclusion bounds is investigated. We furthermore assess the potential reach of the experimental analyses after collecting 100/fb at the LHC running at 13 TeV.
description: 34 pages, 12 figures. Minor changes, matches published version
XPS on corrosion products of ZnCr coated steel: on the reliability of Ar+ ion depth profiling for multi component material analysis
Creators: name: Steinberger, Roland
name: Duchoslav, Jiri
name: Arndt, Martin
name: Stifter, David
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: X-ray photoelectron spectroscopy combined with Ar+ ion etching is a powerful concept to identify different chemical states of compounds in depth profiles, important for obtaining information underneath surfaces or at layer interfaces. The possibility of occurring sputter damage is known but insufficiently investigated for corrosion products of Zn-based steel coatings like ZnCr. Hence, in this work reference materials are studied according to stability against ion sputtering. Indeed some investigated compounds reveal a very unstable chemical nature. On the basis of these findings the reliability of depth profiles of real samples can be rated to avoid misinterpretations of observed chemical species.
description: 8 figures, in press, accepted manuscript, Corrosion Science, online available
Charge-carrier-induced frequency renormalization, damping and heating of vibrational modes in nanoscale junctions
Creators: name: Kaasbjerg, Kristen
name: Novotný, Tomáš
name: Nitzan, Abraham
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In nanoscale junctions the interaction between charge carriers and the local vibrations results in renormalization, damping and heating of the vibrational modes. We here formulate a nonequilibrium Green's functions based theory to describe such effects. Studying a generic junction model with an off-resonant electronic level, we find a strong bias dependence of the frequency renormalization and vibrational damping accompanied by pronounced nonlinear vibrational heating in junctions with intermediate values of the coupling to the leads. Combining our theory with ab-initio calculations we furthermore show that the bias dependence of the Raman shifts and linewidths observed experimentally in an OPV3 junction [D. Ward et al., Nature Nano. 6, 33 (2011)] may be explained by a combination of dynamic carrier screening and molecular charging.
description: 6 pages, 4 figures, expanded supplementary (published version)
Helmholtz Decomposition of the Lagrangian Displacement
Creators: name: Chan, Kwan Chuen
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Lagrangian displacement field $Ψ$ is the central object in Lagrangian perturbation theory (LPT). LPT is very successful at high redshifts, but it performs poorly at low redshifts due to severe shell crossing. To understand and quantify the effects of shell crossing, we extract $Ψ$ from N-body simulation and decompose it into scalar and vector parts. We find that at late time the power spectrum of the scalar part agrees with 1-loop results from LPT at large scales, while the power in small scales is much suppressed due to shell crossing. At z=0, the power spectrum of $Ψ$ is 10% lower than the 1-loop results at k = 0.1 h/Mpc. Shell crossing also generates the vector contribution in $Ψ$, although its effect is subdominant in comparison with the power suppression in the scalar part. At z=0, the vector part contributes 10% to the total power spectrum of $Ψ$ at k = 1 h/Mpc, while only 1% is expected from the vector contribution in LPT. We also examine the standard LPT recipes and some of its variants. In one of the variants, we include a power suppression factor in the displacement potential to take into account the power suppression in small scales after shell crossing. However, these simple phenomenological approaches are found to yield limited improvement compared to the standard LPT after the onset of shell crossing.
description: 18 pages, 20 figures, match the published version
Graded Betti numbers of powers of ideals
Creators: name: Bagheri, Amir
name: Lamei, Kamran
Publisher: name: arXiv
Year: 2013
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D45, 13D02

description: Using the concept of vector partition functions, we investigate the asymptotic behavior of graded Betti numbers of powers of homogeneous ideals in a polynomial ring over a field. Our main results state that if the polynomial ring is equipped with a positive $\ZZ$-grading, then the Betti numbers of powers of ideals are encoded by finitely many polynomials. More precisely, in the case of $\ZZ$-grading, $\ZZ^2$ can be splitted into a finite number of regions such that each region corresponds to a polynomial that depending to the degree $(μ, t)$, $\dim_k \left(\tor_i^S(I^t, k)_μ \right)$ is equal to one of these polynomials in $(μ, t)$. This refines, in a graded situation, the result of Kodiyalam on Betti numbers of powers of ideals. Our main statement treats the case of a power products of homogeneous ideals in a $\ZZ^d$-graded algebra, for a positive grading.
description: 20 pages
Numerical treatment of entropy generation in convective MHD Williamson nanofluid flow with Cattaneo–Christov heat flux and suction/injection
Creators: name: Reddy, M. Vinodkumar
name: Vajravelu, K.
name: Ajithkumar, M.
name: Sucharitha, G.
name: Lakshminarayana, P.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Developmental Biology

description: This investigation has significant applications in the fields of mechanical, industrial, and biomedical engineering, biosciences, and technology, particularly in areas such as blood pumping, drug delivery, glass-fiber production, paper production, and nuclear reactors. This study explores the numerical analysis of a mathematical model of entropy generation in convective magnetohydrodynamic (MHD) flow of Williamson nanofluid model over a stretching sheet with Cattaneo–Christov heat flux and suction/injection. Furthermore, heat generation, viscous dissipation, Joule heating, radiation, and chemical reaction are considered. The appropriate transformations are used to transform the nonlinear partial differential equations (PDEs) into nonlinear ordinary differential equations (ODEs). The transformed equations are solved numerically using bvp5c MATLAB package. The effects of the involved physical parameters on the flow quantities and the entropy generation are presented and discussed in detail with figures and tables. It is observed that the thermal field is enhanced by increasing the Eckert number, the Joule heating, and the thermal relaxation parameters. Also, the concentration field is observed to be a decreasing function of the augmented chemical reaction parameter. Further, the increasing magnetic field and the Williamson parameter led to an increase in the skin friction coefficient. Moreover, the entropy generation increases due to an increase in the diffusion parameter and the Brinkman number.
Assessment of the carpal tunnel and associated neural structures with superb microvascular imaging: a scoping review
Creators: name: Lin, Ting-Yu
name: Shen, Peng-Chieh
name: Chang, Ke-Vin
name: Wu, Wei-Ting
name: Özçakar, Levent
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: Superb microvascular imaging (SMI) is an advanced ultrasound technique that portrays microcirculation. Its clinical applications have been studied in various diseases, including carpal tunnel syndrome (CTS) i.e. the most common entrapment neuropathy. This scoping review explores the role of SMI in diagnosing CTS or the assessment of relevant neural structures. We conducted a comprehensive search of electronic databases (PubMed, Embase and Web of Science) up to 26 September 2023. Two independent authors conducted the literature search, quality assessment, and data extraction. This review includes seven studies comprising 385 wrists. SMI consistently revealed increased intraneural vascularity in the median nerves of patients with CTS compared to healthy individuals. While SMI demonstrated higher sensitivity than traditional Doppler methods for detecting CTS, its specificity was somewhat lower. Combining SMI with B-mode ultrasound appears to enhance the diagnostic accuracy for CTS. However, the relationship between SMI findings and CTS severity remains unclear. This review highlighted the ability of SMI to provide detailed vascular structures in both healthy wrists and those with CTS. Additional research is crucial to determine the typical SMI findings of the carpal tunnel and within that context, tailor more precise diagnostic/therapeutic applications for the CTS population.
Wearable devices for gait and posture monitoring via telemedicine in people with movement disorders and multiple sclerosis: a systematic review
Creators: name: Salaorni, Francesca
name: Bonardi, Giulia
name: Schena, Federico
name: Tinazzi, Michele
name: Gandolfi, Marialuisa
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Space Science
Medicine
Biotechnology
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Science Policy

description: Wearable devices and telemedicine are increasingly used to track health-related parameters across patient populations. Since gait and postural control deficits contribute to mobility deficits in persons with movement disorders and multiple sclerosis, we thought it interesting to evaluate devices in telemedicine for gait and posture monitoring in such patients. For this systematic review, we searched the electronic databases MEDLINE (PubMed), SCOPUS, Cochrane Library, and SPORTDiscus. Of the 452 records retrieved, 12 met the inclusion/exclusion criteria. Data about (1) study characteristics and clinical aspects, (2) technical, and (3) telemonitoring and teleconsulting were retrieved, The studies were quality assessed. All studies involved patients with Parkinson’s disease; most used triaxial accelerometers for general assessment (n = 4), assessment of motor fluctuation (n = 3), falls (n = 2), and turning (n = 3). Sensor placement and count varied widely across studies. Nine used lab-validated algorithms for data analysis. Only one discussed synchronous patient feedback and asynchronous teleconsultation. Wearable devices enable real-world patient monitoring and suggest biomarkers for symptoms and behaviors related to underlying gait disorders. thus enriching clinical assessment and personalized treatment plans. As digital healthcare evolves, further research is needed to enhance device accuracy, assess user acceptability, and integrate these tools into telemedicine infrastructure. CRD42022355460
Validity of rotating wave approximation in non-adiabatic holonomic quantum computation
Creators: name: Spiegelberg, Jakob
name: Sjöqvist, Erik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the validity of the rotating wave approximation (RWA) in non-adiabatic holonomic single-qubit gates [New J. Phys. {\bf 14}, 103035 (2012)]. We demonstrate that the adoption of RWA may lead to a sharp decline in fidelity for rapid gate implementation and small energy separation between the excited and computational states. The validity of the RWA in the recent experimental realization [Nature (London) {\bf 496}, 482 (2013)] of non-adiabatic holonomic quantum computation for a superconducting qubit is examined.
description: Changes, old figure replaced two new figures, journal reference added
Coarse grained NN potential with Chiral Two Pion Exchange
Creators: name: Perez, R. Navarro
name: Amaro, J. E.
name: Arriola, E. Ruiz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We determine the chiral constants of the Nucleon-Nucleon Two Pion Exchange potential deduced from Chiral Perturbation Theory. By using a coarse grained representation of the short distance interactions with 30 parameters, the Partial Wave Analysis fit gives chi^2/dof = 1.1 to a mutually consistent set of 6713 data previously built from all published proton-proton and neutron proton scattering data from 1950 till 2013 with LAB energy below 350 MeV. We obtain (c1, c3, c4)=(-0.41+- 1.08,-4.66+- 0.60, 4.31+- 0.17)/GeV with an almost 100% anti-correlation between c1 and c3. We also provide the errors in the short distance parameters and propagate them to the deuteron properties and low partial waves phase shifts.
description: 11 pages, 7 figures, 11 tables. Enlarged version
GPU Accelerated Particle Visualization with Splotch
Creators: name: Rivi, Marzia
name: Gheller, Claudio
name: Dykes, Tim
name: Krokos, Mel
name: Dolag, Klaus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Splotch is a rendering algorithm for exploration and visual discovery in particle-based datasets coming from astronomical observations or numerical simulations. The strengths of the approach are production of high quality imagery and support for very large-scale datasets through an effective mix of the OpenMP and MPI parallel programming paradigms. This article reports our experiences in re-designing Splotch for exploiting emerging HPC architectures nowadays increasingly populated with GPUs. A performance model is introduced for data transfers, computations and memory access, to guide our re-factoring of Splotch. A number of parallelization issues are discussed, in particular relating to race conditions and workload balancing, towards achieving optimal performances. Our implementation was accomplished by using the CUDA programming paradigm. Our strategy is founded on novel schemes achieving optimized data organisation and classification of particles. We deploy a reference simulation to present performance results on acceleration gains and scalability. We finally outline our vision for future work developments including possibilities for further optimisations and exploitation of emerging technologies.
description: 25 pages, 9 figures. Astronomy and Computing (2014)
Which galaxies dominate the neutral gas content of the Universe?
Creators: name: Lagos, Claudia del P.
name: Baugh, C. M.
name: Zwaan, M. A.
name: Lacey, C. G.
name: Gonzalez-Perez, V.
name: Power, C.
name: Swinbank, A. M.
name: van Kampen, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the contribution of galaxies with different properties to the global densities of star formation rate (SFR), atomic (HI) and molecular hydrogen (H2) as a function of redshift. We use the GALFORM model of galaxy formation, which is set in the LCDM framework. This model includes a self-consistent calculation of the SFR, which depends on the H2 content of galaxies. The predicted SFR density and how much of this is contributed by galaxies with different stellar masses and infrared luminosities are in agreement with observations. The model predicts a modest evolution of the HI density at z<3, which is also in agreement with the observations. The HI density is predicted to be always dominated by galaxies with SFR<1Msun/yr. This contrasts with the H2 density, which is predicted to be dominated by galaxies with SFR>10Msun/yr. Current high-redshift galaxy surveys are limited to detect carbon monoxide in galaxies with SFR>30Msun/yr, which in our model make up, at most, 20% of the H2 in the universe. In terms of stellar mass, the predicted H2 density is dominated by massive galaxies, Mstellar>10^10Msun, while the HI density is dominated by low mass galaxies, Mstellar<10^9Msun. In the context of upcoming neutral gas surveys, we suggest that the faint nature of the galaxies dominating the HI content of the Universe will hamper the identification of optical counterparts, while for H2, we expect follow up observations of molecular emission lines of already existing galaxy catalogues to be able to uncover the H2 density of the Universe.
description: 23 pages (18 of main body and 5 of Appendices), 16 figures. Accepted by MNRAS
Electrical detection of topological quantum phase transitions in disordered Majorana nanowires
Creators: name: Fregoso, Benjamin M.
name: Lobos, Alejandro M.
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study a disordered superconducting nanowire, with broken time-reversal and spin-rotational symmetry, which can be driven into a topological phase with end Majorana bound states by an externally applied magnetic field. As a function of disorder strength, it is known that the Majorana nanowire has a delocalization quantum phase transition from a topologically nontrivial phase, which supports Majorana bound states, to a nontopological insulating phase without them. On both sides of the transition, the system is localized at zero energy albeit with very different topological properties. We exploit this deep connection between topology and localization properties to propose an electrical transport measurement to detect the localization-delocalization transition occurring in the bulk of the nanowire. The basic idea consists of measuring the difference of conductance at one end of the wire obtained at different values of the coupling to the opposite lead. We show that this measurement reveals the nonlocal correlations emergent only at the topological transition. Hence, while the proposed experiment does not directly probe the end Majorana bound states, it can provide direct evidence for the bulk topological quantum phase transition itself.
description: 11 pages, 3 figures, minor edits, published version
Investigation of the Casimir interaction between two magnetic metals in comparison with nonmagnetic test bodies
Creators: name: Banishev, A. A.
name: Klimchitskaya, G. L.
name: Mostepanenko, V. M.
name: Mohideen, U.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present the complete results for the dynamic experiment on measuring the gradient of the Casimir force between magnetic (Ni-coated) surfaces of a plate and a sphere. Special attention is paid to the description of some details of the setup, its calibration, error analysis and background effects. Computations are performed in the framework of the Lifshitz theory at nonzero temperature with account of analytic corrections to the proximity force approximation and of surface roughness using both the Drude and the plasma model approaches. The theory of magnetic interaction between a sphere and a plate due to domain structure of their surfaces is developed for both out-of-plane and in-plane magnetizations in the absence and in the presence of spontaneous magnetization. It is shown that in all cases the magnetic contribution to the measured force gradients is much smaller than the total experimental error. The comparison between experiment and theory is done using the rigorous statistical method. It is shown that the theoretical approach taking into account dissipation of free electrons is excluded by the data at a 95% confidence level. The approach neglecting dissipation is confirmed by the data at more than 90% confidence level. We prove that the results of experiments with Ni-Ni, Ni-Au and Au-Au surfaces taken together cannot be reconciled with the approach including free electrons dissipation by the introduction of any unaccounted background force, either attractive or repulsive.
description: 40 pages, 14 figures; two typos in Eqs.(25) and (28) and the units on the vertical axes in Figs.12(a), 13(a,b) and 14(a,b) are corrected
Sivers Function in the Quasi-Classical Approximation
Creators: name: Kovchegov, Yuri V.
name: Sievert, Matthew D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the Sivers function in semi-inclusive deep inelastic scattering (SIDIS) and in the Drell-Yan process (DY) by employing the quasi-classical Glauber-Mueller/ McLerran-Venugopalan approximation. Modeling the hadron as a large "nucleus" with non-zero orbital angular momentum (OAM), we find that its Sivers function receives two dominant contributions: one contribution is due to the OAM, while another one is due to the local Sivers function density in the nucleus. While the latter mechanism, being due to the "lensing" interactions, dominates at large transverse momentum of the produced hadron in SIDIS or of the di-lepton pair in DY, the former (OAM) mechanism is leading in saturation power counting and dominates when the above transverse momenta become of the order of the saturation scale. We show that the OAM channel allows for a particularly simple and intuitive interpretation of the celebrated sign flip between the Sivers functions in SIDIS and DY.
description: 44 pages, 14 figures; v2: typos corrected, figure modified
Protective effects of Hinokitiol on neuronal ferroptosis by activating the KEAP1/NRF-2/HO-1 pathway in traumatic brain injury
Creators: name: Baoshu, Xie
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences

description: In this study, we investigated the effects of hinokitiol, a small-molecule natural compound, against neuronal ferroptosis after traumatic brain injury (TBI). A controlled cortical impact (CCI) mouse model and excess glutamate-treated HT-22 cells were used to study the effects of hinokitiol on TBI. Hinokitiol mitigated TBI brain tissue lesions and significantly improved neurological function. Neuron loss and iron deposition were ameliorated after hinokitiol administration. Hinokitiol alleviated excessive glutamate-induced intracellular reactive oxygen species (ROS), lipid peroxidation, and Fe2+ accumulation in HT-22. Mechanistically, hinokitiol upregulated heme oxygenase-1 (HO-1) expression, promoted nuclear factor-erythroid factor 2-related factor 2 (Nrf2) nuclear translocation, and inhibited the activation of microglia and astrocyte after TBI. These results suggest that hinokitiol has neuroprotective effects on rescuing cells from TBI-induced neuronal ferroptosis. In summary, hinokitiol is a potential therapeutic candidate for TBI by activating the Nrf2/Keap1/HO-1 signaling pathway.
Bianchi type-I transit cosmological models with time dependent gravitational and cosmological constants - reexamined
Creators: name: Pradhan, Anirudh
name: Saha, Bijan
name: Rikhvitsky, Victor
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Physics (physics.gen-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The present study reexamines the recent work of Pradhan et al. (Indian J. Phys. 88: 757, 2014) and obtained general exact solutions of the Einstein's field equations with variable gravitational and cosmological "constants" for a spatially homogeneous and anisotropic Bianchi type-I space-time. To study the transit behaviour of Universe, we consider a law of variation of scale factor $a(t) = \left(t^{k} e^{t}\right)^{\frac{1}{n}}$ which yields a time dependent deceleration parameter $q = - 1 + \frac{nk}{(k + t)^{2}}$, comprising a class of models that depicts a transition of the universe from the early decelerated phase to the recent accelerating phase. We find that the time dependent deceleration parameter is reasonable for the present day Universe and give an appropriate description of the evolution of the universe. For $n = 0.27k$, we obtain $q_{0} = -0.73$ which is similar to observed value of deceleration parameter at present epoch. It is also observed that for $n \geq 2$ and $k = 1$, we obtain a class of transit models of the universe from early decelerating to present accelerating phase. For $k = 0$, the universe has non-singular origin. In these models, we arrive at the decision that, from the structure of the field equations, the behaviour of cosmological and gravitational constants and are related. Taking into consideration the observational data, we conclude that the cosmological constant behaves as a positive decreasing function of time whereas gravitational constant is increasing and tend to a constant value at late time. $H(z)/(1+z)$ data ($32$ points) and model prediction as a function of redshift for different $k$ and $n$ are successfully presented by using recent data (Farooq and Ratra, Astrophys. J. 66: L7, 2013). Some physical and geometric properties of the models are also discussed.
description: 18 pages, 12 figures. Some figures are changed and some texts were withdrawn. arXiv admin note: text overlap with arXiv:1303.3000; and text overlap with arXiv:gr-qc/0010016 by other author without attribution