cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Assessing the Factors that Affect the Nursing Issues Dengue Hemorrhagic Fever Patients throughout the Disease that Remain in The Hospital for Tropical Diseases
Creators: name: Panjit Phothong
name: Waraporn Somwong
name: Kongkaew Younboonhlim
name: Porntipa Kwanraj
name: Sompit Suvanboon
Publisher: name: Text and Journal Publication
Year: 2021
Subjects: Dengue Fever
Dengue Hemorrhagic Fever
Dengue Shock Syndrome
Nursing care

description: Vajira Medical Journal, 65, 3, 245-252
Grey area in Embedded WMLES on a transonic nacelle-aircraft configuration
Creators: name: Herr, Marius
name: Probst, Axel
name: Radespiel, Rolf
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A scale resolving hybrid RANS-LES technique is applied to an aircraft-nacelle configuration under transonic flow conditions using the unstructured, compressible TAU solver. Therefore, a wall modelled LES methodology is locally applied to the nacelle lower surface in order to examine shock induced separation. In this context a synthetic turbulence generator (STG) is used to shorten the adaption region at the RANS-LES interface. Prior to the actual examinations, fundamental features of the simulation technique are validated by simulations of decaying isotropic turbulence as well as a flat plate flow. For the aircraft-nacelle configuration at a Reynolds number of 3.3 million a sophisticated mesh with 420 million points was designed which refines 32 % of the outer casing surface of the nacelle. The results show a development of a well resolved turbulent boundary layer with a broad spectrum of turbulent scales which demonstrates the applicability of the mesh and method for aircraft configurations. Furthermore, the necessity of a low dissipation low dispersion scheme is demonstrated. However, the distinct adaption region downstream of the STG limits the employment of the method in case of shock buffet for the given flow conditions.
Steering Magnetic Skyrmions with Nonequilibrium Green's Functions
Creators: name: Boström, Emil Viñas
name: Verdozzi, Claudio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Magnetic skyrmions, topologically protected vortex-like configurations in spin textures, are of wide conceptual and practical appeal for quantum information technologies, notably in relation to the making of so-called race-track memory devices. Skyrmions can be created, steered and destroyed with magnetic fields and/or (spin) currents. Here we focus on the latter mechanism, analyzed via a microscopic treatment of the skyrmion-current interaction. The system we consider is an isolated skyrmion in a square-lattice cluster, interacting with electrons spins in a current-carrying quantum wire. For the theoretical description, we employ a quantum formulation of spin-dependent currents via nonequilibrium Green's functions (NEGF) within the generalized Kadanoff-Baym ansatz (GKBA). This is combined with a treatment of skyrmions based on classical localized spins, with the skyrmion motion described via Ehrenfest dynamics. With our mixed quantum-classical scheme, we assess how time-dependent currents can affect the skyrmion dynamics, and how this in turn depends on electron-electron and spin-orbit interactions in the wire. Our study shows the usefulness of a quantum-classical treatment of skyrmion steering via currents, as a way for example to validate/extract an effective, classical-only, description of skyrmion dynamics from a microscopic quantum modeling of the skyrmion-current interaction.
description: 10 pages, 8 figures, contribution to the proceedings of "Progress in Nonequilibrium Green's Functions VII"
Prevention and Management of the Diabetic Foot in the Diabetic Patients at the Health Promoting Hospital by the Family Medicine Physicians
Creators: name: Lerkroj Prayurasiddhi
Publisher: name: Text and Journal Publication
Year: 2021
Subjects: family medicine physicians
prevention and management of the diabetic foot in the diabetic patients
the health promoting hospital

description: Vajira Medical Journal, 65, 3, 253-264
Superconducting Quantum Critical Point
Creators: name: Ramazashvili, Revaz
name: COleman, Piers
Publisher: name: arXiv
Year: 1997
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the properties of a quantum critical point which develops in a BCS superconductor when pair-breaking suppresses the transition temperature to zero. The pair fluctuations are characterized by a dynamical critical exponent z=2. Except for very low temperatures, anomalous contribution to the conductivity is proportional to the square root of T in three dimensions, but to 1/T in two dimensions. At lowest temperatures, the conductivity correction varies as T to the power 1/4 in three dimensions, and as ln(1/T) in two.
description: 3 pages, 3 Postscript figures, Latex
Laser radio transmitter
Creators: name: Piccardo, Marco
name: Tamagnone, Michele
name: Schwarz, Benedikt
name: Chevalier, Paul
name: Rubin, Noah A.
name: Wang, Yongrui
name: Wang, Christine A.
name: Connors, Michael K.
name: McNulty, Daniel
name: Belyanin, Alexey
name: Capasso, Federico
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Since the days of Hertz, radio transmitters have evolved from rudimentary circuits emitting around 50 MHz to modern ubiquitous Wi-Fi devices operating at gigahertz radio bands. As wireless data traffic continues to increase there is a need for new communication technologies capable of high-frequency operation for high-speed data transfer. Here we give a proof of concept of a new compact radio frequency transmitter based on a semiconductor laser frequency comb. In this laser, the beating among the coherent modes oscillating inside the cavity generates a radio frequency current, which couples to the electrodes of the device. We show that redesigning the top contact of the laser allows one to exploit the internal oscillatory current to drive an integrated dipole antenna, which radiates into free space. In addition, direct modulation of the laser current permits encoding a signal in the radiated radio frequency carrier. Working in the opposite direction, the antenna can receive an external radio frequency signal, couple it to the active region and injection lock the laser. These results pave the way to new applications and functionality in optical frequency combs, such as wireless radio communication and wireless synchronization to a reference source.
Choice-free Dualities for Lattice Expansions: Application to Logics with a Negation Operator
Creators: name: Hartonas, Chrysafis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: F.4
subject: 03G10, 03B60

description: Constructive dualities have been recently proposed for some lattice based algebras and a related project has been outlined by Holliday and Bezhanishvili, aiming at obtaining "choice-free spatial dualities for other classes of algebras [$\ldots$], giving rise to choice-free completeness proofs for non-classical logics''. We present in this article a way to complete the Holliday-Bezhanishvili project (uniformly, for any normal lattice expansion) by recasting recent relational representation and duality results in a choice-free manner. These results have some affinity with the Moshier and Jipsen duality for bounded lattices with quasi-operators, except for aiming at representing operators by relations, extending the Jónsson-Tarski approach for BAOs, and Dunn's follow up approach for distributive gaggles, to contexts where distribution may not be assumed. To illustrate, we apply the framework to lattices (and their logics) with some form or other of a (quasi)complementation operator, obtaining canonical extensions in relational frames and choice-free dualities for lattices with a minimal, or a Galois quasi-complement, or involutive lattices, including De Morgan algebras, as well as Ortholattices and Boolean algebras, as special cases.
description: arXiv admin note: text overlap with arXiv:2110.06924
Size-Dependent Surface Plasmon Dynamics in Metal Nanoparticles
Creators: name: Shahbazyan, T. V.
name: Perakis, I. E.
name: Bigot, J. -Y.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the effect of Coulomb correlations on the ultrafast optical dynamics of small metal particles. We demonstrate that a surface-induced dynamical screening of the electron-electron interactions leads to quasiparticle scattering with collective surface excitations. In noble-metal nanoparticles, it results in an interband resonant scattering of d-holes with surface plasmons. We show that this size-dependent many-body effect manifests itself in the differential absorption dynamics for frequencies close to the surface plasmon resonance. In particular, our self-consistent calculations reveal a strong frequency dependence of the relaxation, in agreement with recent femtosecond pump-probe experiments.
description: 8 pages + 4 figures, final version accepted to PRL
A Brief Review on Sensing Magnetic Directions in Birds: Radical Pair Processes Involving Cryptochrome
Creators: name: Wiltschko, Roswitha
name: Wiltschko, Wolfgang
Publisher: name: Zenodo
Year: 2021
Subjects: Avian magnetic compass
inclination compass
functional window
Radical Pair Model
cryptochrome
Cry 1a
retina
UV/V cones

description: Birds can use the geomagnetic field for compass orientation. Behavioral experiments, mostly with migrating passerines, revealed three characteristics of the avian magnetic compass: (1) it works spontaneously only in a narrow functional window around the intensity of the ambient magnetic field, but can adapt to other intensities, (2) it is an “inclination compass”, not based on the polarity of the magnetic field, but the axial course of the field lines, and (3) it requires short-wavelength light from UV to 565 nm Green. The Radical Pair-Model of magnetoreception can explain these properties by proposing spin-chemical processes in photopigments as underlying mechanism. Applying radio frequency fields, a diagnostic tool for radical pair processes, supports an involvement of a radical pair mechanism in avian magnetoreception: added to the geomagnetic field, they disrupted orientation, presumably by interfering with the receptive processes. Cryptochromes have been suggested as receptor molecules. Five types of cryptochromes are found in the eyes of birds. Cry1a, the most likely candidate, is located at the membranes of the disks in the outer segments of the UV-cones in chickens and robins. Immuno-histochemical studies show that it is activated by the wavelengths of light that allow magnetic compass orientation in birds. Within the cryptochrome photocycle, the radical pair formed during re-oxidation appears to be the crucial one for magnetoreception.
A New SX Phe Star in the Globular Cluster M15
Creators: name: Jeon, Young-Beom
name: Kim, Seung-Lee
name: Lee, Ho
name: Lee, Myung Gyoon
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new SX Phe star (labelled SXP1) found from $BV$ CCD photometry is the first to be discovered in the globular cluster M15. It is a blue straggler and is located $102\arcsec.8$ north and $285\arcsec.6$ west of the center of M15 \citep{har96}. Mean magnitudes of SXP1 are $$ = 18$\fm$671 and $$ = 18$\fm$445. The amplitude of variability of SXP1 is measured to be $ΔV \approx 0.15$. From multiple-frequency analysis based on the Fourier decomposition method, we detect two very closely separated pulsating frequencies: the primary frequency at $f_1=24.630$ c/d for both $B$- and $V$-bands, and the secondary frequency at $f_2=24.338$ c/d for the $B$-band and 24.343 c/d for the $V$-band. This star is the second among known SX Phe stars found to pulsate with very closely separated frequencies ($f_2/f_1\ge0.95$). These frequencies may be explained by excitation of nonradial modes; however, we have an incomplete understanding of this phenomenon in the case of SX Phe stars with relatively high amplitudes. The metallicity-period and the variability amplitude-period relations for SXP1 in M15 are found to be consistent with those for SX Phe stars in other globular clusters.
description: 15 pages with 6 figures, accepted by the Astronomical Journal (scheduled May 2001)
Quantum tunneling across spin domains in a Bose-Einstein condensate
Creators: name: Stamper-Kurn, D. M.
name: Miesner, H. -J.
name: Chikkatur, A. P.
name: Inouye, S.
name: Stenger, J.
name: Ketterle, W.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Quantum tunneling was observed in the decay of metastable spin domains in gaseous Bose-Einstein condensates. A mean-field description of the tunneling was developed and compared with measurement. The tunneling rates are a sensitive probe of the boundary between spin domains, and indicate a spin structure in the boundary between spin domains which is prohibited in the bulk fluid. These experiments were performed with optically trapped F=1 spinor Bose-Einstein condensates of sodium.
description: 5 pages, 4 figures
Observations of the solar chromosphere with ALMA and comparison with theoretical models
Creators: name: Brajša, R.
name: Sudar, D.
name: Skokic, I.
name: Benz, A. O.
name: Kuhar, M.
name: Kobelski, A.
name: Wedemeyer, S.
name: White, S. M.
name: Ludwig, H. -G.
name: Temmer, M.
name: Saar, S. H.
name: Selhorst, C. L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work we use solar observations with the ALMA radio telescope at the wavelength of 1.21 mm. The aim of the analysis is to improve understanding of the solar chromosphere, a dynamic layer in the solar atmosphere between the photosphere and corona. The study has an observational and a modeling part. In the observational part full-disc solar images are analyzed. Based on a modified FAL atmospheric model, radiation models for various observed solar structures are developed. Finally, the observational and modeling results are compared and discussed.
description: 4 pages, presented at The 20th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, July 29 - Aug 3 2018, Boston / Cambridge, USA
title: Θερμοδυναμική Ανάλυση των μειγμάτων R404A καί R402B με την καταστατική εξίσωση Peng-Robinson
titleType: AlternativeTitle
title: Thermodynamic Analisys of the mixtures R404A and R402B with Peng-Robinson equation of state
Creators: name: Mpegkos, Gregory J.
Publisher: name: National Technological University of Athens
Year: 2013
Subjects: Εντροπία
Ενθαλπία
'Ογκος
Πίεση
Θερμοκρασία
Θερμοδυναμικές
Καταστατική εξίσωση
Entropy
Enthalpy
Volume
Pressure
Temperature
Thermodynamic
Equation of state
Peng-Robinson

description: 84 σ.
description: Θερμοδυναμική Ανάλυση των μειγμάτων R404A καί R402B με την καταστατική εξίσωση Peng-Robinson με χρήση του προγράμματος Fortran.
description: Thermodynamic analysis of the mixtures R404A καί R402B with Peng-Robinson equation of state with the use of Fortran programme
Asymmetric mid-plane gas in ALMA images of HD~100546
Creators: name: Miley, J.
name: Panić, O.
name: Haworth, T. J.
name: Pascucci, I.
name: Wyatt, M.
name: Clarke, C.
name: Richards, A. M. S.
name: Ratzka, T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this paper we present new ALMA observations towards the proto-planet hosting transitional disc of Herbig Ae/Be star HD 100546. This includes resolved 1.3 mm continuum, $^{13}$CO and the first detection of C$^{18}$O in this disc, which displays azimuthal asymmetry in regions spatially coincident with structures previously identified in HST images related to spiral arms. The lower limit on the mass of the dust disc is calculated to be 9.6x10$^{-4}$M$_\odot$. A firm lower-limit on the total gas mass calculated from optically thin, mid-plane tracing C$^{18}$O (2-1) emission is 0.018M$_\odot$ assuming ISM abundances. These mass estimates provide an estimate of gas-to-dust ratio in the disc of 19, the ratio will increase if C$^{18}$O is relatively under-abundant in the disc compared to CO and H2. Through deprojection and azimuthal averaging of the image plane we detect 1.3 mm continuum emission out to 290+/-10 au,$^{13}$CO to 390+/-10 au and C$^{18}$O to 300+/-10au. We measure a radially increasing millimetre spectral index between wavelengths of 867$μ$m and 1.3 mm, which shows that grain sizes increase towards the star, with solid particles growing to cm scales in the inner disc.
Thermal fluctuations of a quantized massive scalar field in Rindler background
Creators: name: Medina, R.
name: Moreira, E. S.
name: Jr
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Thermal fluctuations for a massive scalar field in the Rindler wedge are obtained by applying the point-splitting procedure to the zero temperature Feynman propagator in a conical spacetime. Renormalization is implemented by removing the zero temperature contribution. It is shown that for a field of non vanishing mass the thermal fluctuations, when expressed in terms of the local temperature, do not have Minkowski form. As a by product, Minkowski vacuum fluctuations seen by an uniformly accelerated observer are determined and confronted with the literature.
description: 10 pages; Latex file
Persistent current and correlation effects in carbon nanotubes
Creators: name: Odintsov, A. A.
name: Smit, W.
name: Yoshioka, H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The persistent current of interacting electrons in toroidal single-wall carbon nanotubes is evaluated within Haldane's concept of topological excitations. The overall pattern of the persistent current corresponds to the constant interaction model, whereas the fine structure stems from the electronic exchange correlations.
description: 4 pages, 3 figures
UV Light-mediated regioselective methylsulfanyl discrimination via Pd-catalyzed cross-coupling reactions of 2,4-dimethylsulfanylpyrido[2,3-d]pyrimidines
Creators: name: Riadi, Yassine
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: An effective and novel photochemical method for the preparation of 2,4-disubstituted pyrido[2,3-d]pyrimidines is reported from 2,4-dimethylsulfanyl-pyrido[2,3-d]pyrimidines through a Liebeskind-Sroglcoupling reaction involving an original selective methyl sulfanyl discrimination using UV light as a source of energy. Our strategies involve a two-step and a one-pot approach with reaction times of 11-18 h and yields ranging between 72 and 94%. The two strategies are compared.
Towards Air Stability of Ultra-Thin GaSe Devices: Avoiding Environmental and Laser-Induced Degradation by Encapsulation
Creators: name: Zhao, Qinghua
name: Frisenda, Riccardo
name: Gant, Patricia
name: de Lara, David Perez
name: Munuera, Carmen
name: Garcia-Hernandez, Mar
name: Niu, Yue
name: Wang, Tao
name: Jie, Wanqi
name: Castellanos-Gomez, Andres
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Gallium selenide (GaSe) is a novel two-dimensional material, which belongs to the layered III-VIA semiconductors family and attracted interest recently as it displays single-photon emitters at room temperature and strong optical non-linearity. Nonetheless, few-layer GaSe is not stable under ambient conditions and it tends to degrade over time. Here we combine atomic force microscopy, Raman spectroscopy and optoelectronic measurements in photodetectors based on thin GaSe to study its long-term stability. We found that the GaSe flakes exposed to air tend to decompose forming firstly amorphous selenium and Ga2Se3 and subsequently Ga2O3. While the first stage is accompanied by an increase in photocurrent, in the second stage we observe a decrease in photocurrent which leads to the final failure of GaSe photodetectors. Additionally, we found that the encapsulation of the GaSe photodetectors with hexagonal boron nitride (h-BN) can protect the GaSe from degradation and can help to achieve long-term stability of the devices.
description: 23 pages, 5 figures, supporting information
Relative entropy in 2d Quantum Field Theory, finite-size corrections and irreversibility of the Renormalization Group
Creators: name: Gaite, J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The relative entropy in two-dimensional Field Theory is studied for its application as an irreversible quantity under the Renormalization Group, relying on a general monotonicity theorem for that quantity previously established. In the cylinder geometry, interpreted as finite-temperature field theory, one can define from the relative entropy a monotonic quantity similar to Zamolodchikov's c function. On the other hand, the one-dimensional quantum thermodynamic entropy also leads to a monotonic quantity, with different properties. The relation of thermodynamic quantities with the complex components of the stress tensor is also established and hence the entropic c theorems are proposed as analogues of Zamolodchikov's c theorem for the cylinder geometry.
description: 5 pages, Latex file, revtex, reorganized to best show the generality of the results, version to appear in Phys. Rev. Lett
Benchmarking Model Predictive Control Algorithms in Building Optimization Testing Framework (BOPTEST)
Creators: name: Mostafavi, Saman
name: Song, Chihyeon
name: Sharma, Aayushman
name: Goyal, Raman
name: Brito, Alejandro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Systems and Control (eess.SY)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: We present a data-driven modeling and control framework for physics-based building emulators. Our approach consists of: (a) Offline training of differentiable surrogate models that accelerate model evaluations, provide cost-effective gradients, and maintain good predictive accuracy for the receding horizon in Model Predictive Control (MPC), and (b) Formulating and solving nonlinear building HVAC MPC problems. We extensively evaluate the modeling and control performance using multiple surrogate models and optimization frameworks across various test cases available in the Building Optimization Testing Framework (BOPTEST). Our framework is compatible with other modeling techniques and can be customized with different control formulations, making it adaptable and future-proof for test cases currently under development for BOPTEST. This modularity provides a path towards prototyping predictive controllers in large buildings, ensuring scalability and robustness in real-world applications.
Search for Nonthermal X-ray Emission in the Ophiuchus Galaxy Cluster
Creators: name: Krivonos, Roman
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of our study of the X-ray emission from the Ophiuchus galaxy cluster based on INTEGRAL/IBIS data in the energy range 20-120 keV. Our goal is the search for a nonthermal emission component from the cluster. Using the INTEGRAL data over the period of observations 2003-2009, we have constructed the images of the Ophiuchus galaxy cluster in different energy bands from 20 to 120 keV with the extraction of spectral information. We show that in the hard X-ray energy band the source is an extended one with an angular size of 4.9 +/- 0.1 arcmins. Assuming a fixed intracluster gas temperature of 8.5 keV, a power-law component of the possible nonthermal X-ray emission is observed at a 5.5 sigma significance level, the flux from which is consistent with previous studies. However, in view of the uncertainty in constraining the thermal emission component in the X-ray spectrum at energies above 20 keV, we cannot assert that the nonthermal emission of the cluster has been significantly detected. Based on the fact of a confident detection of the cluster up to 70 keV, we can draw the conclusion only about the possible presence of a nonthermal excess at energies above 60 keV.
description: 14 pages, 6 figures, published in Astronomy Letters, 2022, Vol. 48, No. 11
Sunyaev-Zel'dovich Predictions for the Planck Surveyor Satellite using the Hubble Volume Simulations
Creators: name: Kay, Scott T
name: Liddle, Andrew R
name: Thomas, Peter A
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the billion-particle Hubble Volume simulations to make statistical predictions for the distribution of galaxy clusters that will be observed by the Planck Surveyor satellite through their effect on the cosmic microwave background -- the Sunyaev-Zel'dovich effect. We utilize the lightcone datasets for both critical density (tauCDM) and flat low-density (LambdaCDM) cosmologies: a `full-sky' survey out to $z \sim 0.5$, two `octant' datasets out to beyond $z=1$ and a 100 square degree dataset extending to $z \sim 4$. Making simple, but robust, assumptions regarding both the thermodynamic state of the gas and the detection of objects against an unresolved background, we present the expected number of SZ sources as a function of redshift and angular size, and also by flux (for both the thermal and kinetic effects) for 3 of the relevant HFI frequency channels. We confirm the expectation that Planck will detect around $5\times 10^4$ clusters, though the exact number is sensitive to the choice of several parameters including the baryon fraction, and also to the cluster density profile, so that either cosmology may predict more clusters. We also find that the majority of detected sources should be at $z<1.5$, and we estimate that around one per cent of clusters will be spatially resolved by Planck, though this has a large uncertainty.
description: 11 pages LaTeX file with six figures incorporated, using mn.sty
Antipredation behavior covaries with body size in neotropical snakes: supplementary material
Creators: name: Delaney, David M.
Publisher: name: Brill Online
Year: 2019
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: The use of defensive behaviors to avoid predation increases the likelihood of survival. Snake species have evolved numerous and diverse antipredatory behaviors to fit a variety of natural histories. Understanding how snakes react to simulated predation events can help us understand their ecology. I conducted behavioral trials on 11 colubrid and dipsadid species (n = 16 individuals) in the Republic of Panama to examine patterns of antipredation behavior. The level of aggression and number of antipredatory behaviors exhibited during simulated predation was positively correlated with body size. To complement these results, data from previously published studies were used to assess these patterns with a larger sample of Neotropical colubrids and dipsadids (n = 44 species). Indeed, the level of aggression and number of antipredatory behaviors known for each species was positively correlated with body size. However, the positive association between the number of antipredatory behaviors known for a species and body size was driven largely by colubrids and not dipsadids. Larger snakes may be more intimidating to potential predators, therefore making aggressive defensive behaviors more likely to be successful. Larger snakes also may encounter a higher diversity of predators and may benefit from the ability to choose from a suite of defensive behaviors specific to certain contexts. Although this study suggests two interesting patterns in the defensive behaviors of Neotropical colubrids and dipsadids, comparative studies of the interactions between snakes and their predators are needed to better understand the pressures driving variation in snake antipredation behavior.
Evidence for vortex staircases in the whole angular range due to competing correlated pinning mechanisms
Creators: name: Silhanek, A.
name: Civale, L.
name: Candia, S.
name: Nieva, G.
name: Pasquini, G.
name: Lanza, H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We analyze the angular dependence of the irreversible magnetization of YBa$_2$Cu$_3$O$_7$ crystals with columnar defects inclined from the c-axis. At high fields a sharp maximum centered at the tracks' direction is observed. At low fields we identify a lock-in phase characterized by an angle-independent pinning strength and observe an angular shift of the peak towards the c-axis that originates in the material anisotropy. The interplay among columnar defects, twins and ab-planes generates a variety of staircase structures. We show that correlated pinning dominates for all field orientations.
description: 9 figures, 4 figures
Radiation reaction and the self-force for a point mass in general relativity
Creators: name: Detweiler, Steven
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A point particle of mass m moving on a geodesic creates a perturbation h, of the spacetime metric g, that diverges at the particle. Simple expressions are given for the singular m/r part of h and its quadrupole distortion caused by the spacetime. Subtracting these from h leaves a remainder h^R that is C^1. The self-force on the particle from its own gravitational field corrects the worldline at O(m) to be a geodesic of g+h^R. For the case that the particle is a small non-rotating black hole, an approximate solution to the Einstein equations is given with error of O(m^2) as m approaches 0.
description: 4 pages, RevTex
Solar type III bursts with high-frequency cut-off
Creators: name: Stanislavsky, A. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: New results in the study of solar type III bursts observed with the UTR-2 radio telescope are presented. The main feature of these bursts is a high-frequency cut-off. The solar activity manifestation was connected with the emergency of a new group of solar spots behind the solar limb relative to an observer on the Earth. This burst type was identified by analyzing its frequency drift rate, duration and flux depending on frequency. The solar bursts were linked to a group of similar events. The cut-off frequency is different from burst to burst and lies within 30-55 MHz. The cut-off origin is considered in the context of propagation effects between the burst sources moving behind the solar limb and the ground-based radio instruments.
description: 6 pages, 4 figures, 1 table
DNA and RNA in the Context of the 'Colloid-Coherence' Paradigm of Cell Physiology
Creators: name: Jaeken, Laurent
Publisher: name: Zenodo
Year: 2021
Subjects: Physics of life
colloid-coherence paradigm
association-induction hypothesis
structured water
low-entropy equilibrium bioenergetics
DNA
RNA

description: There are by now direct observations of the complex colloid properties and phase-transition behaviour of cells; and observations of coherent behaviour. This compels to abandon the still reigning ‘membrane-pump-theory’ altogether, with all its ramifications, because it is based on the untenable physics of diluted solutions with a ‘steady state non-equilibrium’ bioenergetics as a result. It should be replaced by a new physiology founded on the physics of colloids, which enables coherent behaviour, a new ‘colloid-coherence’ view with a ‘low-entropy driven equilibrium thermodynamic’. Fortunately, such view exists already: it is fully elaborated in G.N. Ling’s ‘association-induction hypothesis’. This hypothesis quantitatively describes protoplasmic processes through a deeper understanding of how ensembles of protein, water, ions and controlling ligands operate as functional coherent ’nano-protoplasmic units’. This review is the first attempt to find out if this very general well-formulated hypothesis is also applicable to DNA and RNA.
Simulation of the Deformation for Cycling Chemo-Mechanically Coupled Battery Active Particles with Mechanical Constraints
Creators: name: Schoof, R.
name: Castelli, G. F.
name: Dörfler, W.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 74S05, 65M22, 90C33

description: Next-generation lithium-ion batteries with silicon anodes have positive characteristics due to higher energy densities compared to state-of-the-art graphite anodes. However, the large volume expansion of silicon anodes can cause high mechanical stresses, especially if the battery active particle cannot expand freely. In this article, a thermodynamically consistent continuum model for coupling chemical and mechanical effects of electrode particles is extended by a change in the boundary condition for the displacement via a variational inequality. This switch represents a limited enlargement of the particle swelling or shrinking due to lithium intercalation or deintercalation in the host material, respectively. For inequality constraints as boundary condition a smaller time step size is need as well as a locally finer mesh. The combination of a primal-dual active set algorithm, interpreted as semismooth Newton method, and a spatial and temporal adaptive algorithm allows the efficient numerical investigation based on a finite element method. Using the example of silicon, the chemical and mechanical behavior of one- and two-dimensional representative geometries for a charge-discharge cycle is investigated. Furthermore, the efficiency of the adaptive algorithm is demonstrated. It turns out that the size of the gap has a significant influence on the maximal stress value and the slope of the increase. Especially in two dimension, the obstacle can cause an additional region with a lithium-poor phase.
Three-dimensional non-isothermal phase-field modeling of microstructure evolution during selective laser sintering
Creators: name: Yang, Yangyiwei
name: Ragnvaldsen, Olav
name: Bai, Yang
name: Yi, Min
name: Xu, Bai-Xiang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Predicting the microstructure during selective laser sintering (SLS) is of great interests, which can compliment the current time and cost expensive trial-and-error principle with an efficient computational design tool. However, it still remains a great challenge to simulate the microstructure evolution during SLS due to the complex underlying physical phenomena. In this work, we present a three-dimensional finite element phase-field simulation of the SLS single scan, and revealed the process-microstructure relation. We use a thermodynamically consistent non-isothermal phase-field model including various physics (i.e. partial melting, pore structure evolution, diffusion, grain boundary migration, and coupled heat transfer), and interaction of powder bed and laser power absorption. The initial powder bed is generated by the discrete element method. Moreover, we present in the manuscript a novel algorithm analogy to minimum coloring problem and managed to simulate a system of 200 grains with grain tracking using as low as 8 non-conserved order parameters. The developed model is shown to capture interesting phenomena which are not accessible to the conventional isothermal model. Specifically, applying the model to SLS of the stainless steel 316L powder, we identify the influences of laser power and scanning speed on microstructural indicators, including the porosity, surface morphology, temperature profile, grain geometry, and densification. We further validate the first-order kinetics during the porosity evolution, and demonstrate the applicability of the developed model in predicting the linkage of densification factor to the specific energy input during SLS.
Renewable Energy Expansion under Taxes and Subsidies: A Transmission Operator's Perspective
Creators: name: Belyak, Nikita
name: Gabriel, Steven A.
name: Khabarov, Nikolay
name: Oliveira, Fabricio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: General Economics (econ.GN)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: This paper investigates the role of a transmission system operator within a carbon footprint reduction strategy incorporating carbon taxes and renewable energy generation subsidies in the decentralised energy market. This is achieved via an optimisation bi-level model in which a welfare-maximizing transmission system operator makes investments in transmission lines at the upper level while considering power market dynamics at the lower level. To account for the deregulated energy market structure, this paper assumes that the generation companies at the lower level make capacity investments as price-takers in perfect competition. Considering alternative transmission infrastructure expansion budgets, carbon emission taxes and monetary incentives for renewable energy generation capacity expansion, the impact of alternative compositions of these factors is analysed against three output factors: the share of renewable energy in the generation mix, total generation amount, and social welfare. The proposed modelling assessment is applied to an illustrative three-node instance and a case study considering a simplified representation of the energy system of the Nordic and Baltic countries. The results highlight that, under certain circumstances, renewable energy generation subsidies may lead to an increase of renewable energy in the generation mix followed by a simultaneous fall in the total generation amount. Nevertheless, when applied together, these three measures demonstrated a positive impact on all output factors within Nordics' and Baltics' energy systems. The experiments additionally suggest that considering the high value of the carbon tax does not have an impact on the output factors while the composition of high values of renewable energy generation subsidies and budget for transmission infrastructure expansion has the strongest effect.
description: 33 pages, 20 Figures, 12 Tables
AgNOR Expression in Canine Visceral Leishmaniosis
Creators: name: Verçosa1, Bárbara Laurice Araújo
Publisher: name: Zenodo
Year: 2021
Subjects: Canine leishmaniosis
AgNOR
Leishmania
cell metabolism
dog

description: One of the ways to assess cellular metabolism is through the AgNOR technique. Since NORs are related to protein synthesis, they are increased in number according to the increase in cell metabolism, which occurs when the cell enters the cell cycle. NORs are involved with active transcription during Leishmania spp infection and their activation can result in histopathological lesions depending on clinical status. Thus, AgNOR marker must be sought that can differentiate Leishmania-infected dogs with a higher risk of body impairment. The aim of this study was to revise the relations among histological lesions, AgNORs expression and clinical manifestations.
Configuration Space for Random Walk Dynamics
Creators: name: Berg, Bernd A.
name: Hansmann, Ulrich H. E.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Applied to statistical physics models, the random cost algorithm enforces a Random Walk (RW) in energy (or possibly other thermodynamic quantities). The dynamics of this procedure is distinct from fixed weight updates. The probability for a configuration to be sampled depends on a number of unusual quantities, which are explained in this paper. This has been overlooked in recent literature, where the method is advertised for the calculation of canonical expectation values. We illustrate these points for the $2d$ Ising model. In addition, we proof a previously conjectured equation which relates microcanonical expectation values to the spectral density.
description: Various minor changes, appendix added, Fig. 2 dropped
Semi-synthesis of a novel hybrid isoxazolidino withaferin via chemoselective and diastereoselective 1,3-dipolar nitrone cycloaddition reaction
Creators: name: Ramkrishna Mandal
name: Singh, Meenakshi
name: Amrutha A.V. Krishnan
name: Dahat, Yogita H.
name: Bharitkar, Yogesh P.
name: V. Ravichandiran
name: Abhijit Hazra
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: A facile, atom-economic synthesis of isoxazilidino withaferin, a novel hybrid of withaferin A, has been accomplished via two-step reaction of nitrone synthesis followed by nitrone 1,3-dipolar cycloaddition. The reaction is highly chemoselective (preferential reaction only on one of the two double bonds present on withaferin A) and diastereoselective affording exclusively the cis-fused products. The structure was determined by detailed analysis of 1D, 2D NMR and mass spectral data.
title: Μελέτη ευρωπαϊκών τραπεζών για την πρόβλεψη της συμπεριφοράς τους στη σύγχρονη οικονομική πραγματικότητα με τη χρήση τεχνητών νευρωνικών δικτύων
titleType: AlternativeTitle
Creators: name: Gkologiannis, Pavlos Ch.
Publisher: name: National Technological University of Athens
Year: 2013
Subjects: Τραπεζικό σύστημα
Χρηματοοικονομικοί δείκτες
Χρονοσειρές
Μοντέλα προβλέψεων
Τεχνητά νευρωνικά δίκτυα
Banking
Financial ratios
Time series
Forecasting models
Artificial neural networks

description: 141 σ.
description: Στόχος της διπλωματικής εργασίας είναι η πρόβλεψη ορισμένων τραπεζικών δεικτών, με τη βοήθεια των οποίων μπορούν να εξαχθούν χρήσιμα συμπεράσματα για τη ρευστότητα ενός τραπεζικού ιδρύματος και τη μελλοντική του πορεία. Σε αυτή την κατεύθυνση μελετώνται έξι τράπεζες της ευρωπαϊκής ηπείρου και παράγονται προβλέψεις με ορίζοντα ενός έτους για τους δείκτες μη-εξυπηρετούμενων δανείων (NPL ratio) και κεφαλαιακής επάρκειας (Tier 1 ratio), καθώς και για το λόγο Κέρδη/Ενεργητικό. Οι προβλέψεις παράγονται τόσο με τις "κλασικές" μεθόδους πρόβλεψης, δηλαδή τις μεθόδους Naive, SES, Holt, DES και Theta, όσο και με τη χρήση τεχνητών νευρωνικών δικτύων, οι επιδόσεις των οποίων επιδιώκεται να βελτιωθούν. Οι προβλέψεις που προκύπτουν από τις διαφορετικές μεθόδους συγκρίνονται μεταξύ τους για να εξαχθούν συμπεράσματα ως προς την ακρίβειά τους και να επιλεχθούν οι καλύτερες από αυτές για μελλοντικές προβλέψεις στον τραπεζικό τομέα.
description: The aim of the present diploma thesis is the forecasting of banking ratios which are related to the liquidity and the future prospects of a banking institution. In this framework, forecasts for NPL ratio, Tier 1 ratio as well as the ratio Profits/Assets are generated for six European banks. The forecast horizon is 4 quarters. For these forecasts both classic methods, namely Naive, SES, Holt, DES and Theta, and artificial neural networks are used and an attempt is made to improve their performance. The different forecasts are compared in order to reach useful conclusions on their accuracy and choose the best of them for future banking forecasts.
Analysis of Amino Acids Levels of Freeze-dried Termite Queen Macrotermes gilvus Hagen: An Advanced Study
Creators: name: Yohannes Alen
name: Lakmi Nurul Suci
name: Orindia Suarmin
name: Harrizul Rivai
Publisher: name: Zenodo
Year: 2021
Subjects: Termites
UPLC
lysine
tryptophan
Macrotermes gilvus

description: Objective: Termites (Macrotermes gilvus Hagen) are the social insects with colonies divided into ‘castes’ that include workers, soldiers, winged adults, a queen and a king. Queen of termites were analyzed for amino acid content. Methods: Amino acid analyses were carried out on the part reproductive termites to determine the nutrient composition. The queen termites were collected from palm plantation, Taluak Kuantan, Riau, Indonesia. They were opened from nest, freeze-dried to fine powder. Amino acids were determined using ultra pressure liquid chromatography (UPLC). Results: Freeze-dried termites queen showed that crude protein contain the essential amino acid. The highest content of amino acid was lysine, while the least content of amino acid was tryptophan. Conclusion: The queen of termites was the nutrient-rich insects that can supply adequate quantities of the various amino acids for pharmaceutical nutrient. The study confirms the fact that termites are indeed a good source of protein and amino acids.
Molecular dynamics, Langevin, and hybrid Monte Carlo simulations in multicanonical ensemble
Creators: name: Hansmann, Ulrich H. E.
name: Okamoto, Yuko
name: Eisenmenger, Frank
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We demonstrate that the multicanonical approach is not restricted to Monte Carlo simulations, but can also be applied to simulation techniques such as molecular dynamics, Langevin, and hybrid Monte Carlo algorithms. The effectiveness of the methods are tested with an energy function for the protein folding problem. Simulations in the multicanonical ensemble by the three methods are performed for a penta peptide, Met-enkephalin. For each algorithm, it is shown that from only one simulation run one can not only find the global-minimum-energy conformation but also obtain probability distributions in canonical ensemble at any temperature, which allows the calculation of any thermodynamic quantity as a function of temperature.
description: Latex, no figures included, for reprints send e-mail to authors