cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamics and transport in the boundary-driven dissipative Klein-Gordon chain
Creators: name: Prem, Abhinav
name: Bulchandani, Vir B.
name: Sondhi, S. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Motivated by experiments on chains of superconducting qubits, we consider the dynamics of a classical Klein-Gordon chain coupled to coherent driving and subject to dissipation solely at its boundaries. As the strength of the boundary driving is increased, this minimal classical model recovers the main features of the "dissipative phase transition" seen experimentally. Between the transmitting and non-transmitting regimes on either side of this transition (which support ballistic and diffusive energy transport respectively), we observe additional dynamical regimes of interest. These include a regime of superdiffusive energy transport at weaker driving strengths, together with a "resonant nonlinear wave" regime at stronger driving strengths, which is characterized by emergent translation symmetry, ballistic energy transport, and coherent oscillations of a nonlinear normal mode. We propose a non-local Lyapunov exponent as an experimentally measurable diagnostic of many-body chaos in this system, and more generally in open systems that are only coupled to an environment at their boundaries.
description: 23 pages, 16 figures; v2: typos fixed and references added; v3: improved ansatz for the resonant nonlinear wave solution, close to published version
2-Oxaspiro[4.5]decane and α-pyrenocine derivatives from the endophytic fungus Roussoella sp. PSU-H51
Creators: name: Sommart, Ubonta
name: Rukachaisirikul, Vatcharin
name: Saithong, Saowanit
name: Phongpaichit, Souwalak
name: Sakayaroj, Jariya
name: Preedanon, Sita
name: Chainok, Kittipong
name: Khunrong, Teerayut
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Plant Biology

description: One new 2-oxaspiro[4.5]decane, roussoellide, and one new α-pyrenocine, 2',3'-dihydropyrenocine A, together with nine known compounds including known arthropsolide A, and pyrenocines A and E, were obtained from the culture broth of the endophytic fungus Roussoella sp. Their structures were determined using spectroscopic data. The absolute configuration of known arthropsolide A was assigned on the basis of X-ray diffraction data using Cu Kα radiation. Known pyrenocine A displayed weak cytotoxic activity against breast cancer (MCF-7) cells with an IC50 value of 27.1 µM and weak antifungal activity against Microsporum gypseum SH-MU-4 with an MIC value of 615.2 µM.
title: To determine the accuracy of 2D and 3D Ultrasonography (USG) in the diagnosis of uterine septal anomalies.
Creators: name: Sawant, Rohan
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Diagnostic procedure
subject: Endoscopy
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Pelvis
subject: Obstetrics (Pregnancy / birth / postnatal period)
subject: Genital / Reproductive system female
subject: Congenital
subject: Obstetrics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Todetermine the accuracy of 2D and 3D Ultrasonography (USG) in the diagnosis of uterine septal anomalies. Uterine septal anomalies are the most common Müllerian duct anomalies (55%), which can arise from malformations of the Müllerian...
Orbital angular momentum of optical, acoustic, and quantum-mechanical spatiotemporal vortex pulses
Creators: name: Bliokh, Konstantin Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Classical Physics (physics.class-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Motivated by recent progress in the generation of optical spatiotemporal vortex pulses (STVPs), there is a theoretical discussion about the transverse orbital angular momentum (OAM) carried by such pulses. Two recent works [K. Y. Bliokh, Phys. Rev. Lett. 126, 243601 (2021)] and [S. W. Hancock et al., Phys. Rev. Lett. 127, 193901 (2021)] claimed the OAM values which differ by a factor of 2 for circular STVPs. Here we resolve this controversy by showing that the result by Hancock et al. is correct for the total OAM, while the result by Bliokh describes the suitably defined intrinsic part of the OAM. The other, extrinsic part of the OAM originates from the fact that plane waves of the same amplitude but different frequencies in the pulse spectrum contain different densities of photons, which induces a transverse vortex-dependent shift of the photon centroid even in a STVP with symmetric energy-density distribution. We describe similar peculiarities of acoustic and quantum-relativistic (Klein-Gordon and arbitrary-spin) STVPs. In all cases, only the intrinsic OAM keeps a universal form independent of the details of the problem and similar to the OAM of monochromatic vortex beams.
description: 7 pages, 2 figures
The Drop during Less than 300 days of a Dusty White Dwarf's Infrared Luminosity
Creators: name: Xu, S.
name: Jura, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report Spitzer/IRAC photometry of WD J0959-0200, a white dwarf that displays excess infrared radiation from a disk, likely produced by a tidally disrupted planetesimal. We find that in 2010, the fluxes in both 3.6 $μ$m and 4.5 $μ$m decreased ~ 35% in less than 300 days. The drop in the infrared luminosity is likely due to an increase of the inner disk radius from one of two scenarios: (i) a recent planetesimal impact; (ii) instability in the circumstellar disk. The current situation is tantalizing; high sensitivity, high cadence infrared studies will be a new tool to study the interplay between a disk and its host white dwarf star.
description: ApJ Letters, accepted
Heat transport in Weyl semimetals in the hydrodynamic regime
Creators: name: Messica, Yonatan
name: Ostrovsky, Pavel M.
name: Gutman, Dmitri B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study heat transport in a Weyl semimetal with broken time-reversal symmetry in the hydrodynamic regime. At the neutrality point, the longitudinal heat conductivity is governed by the momentum relaxation (elastic) time, while longitudinal electric conductivity is controlled by the inelastic scattering time. In the hydrodynamic regime this leads to a large longitudinal Lorenz ratio. As the chemical potential is tuned away from the neutrality point, the longitudinal Lorenz ratio decreases because of suppression of the heat conductivity by the Seebeck effect. The Seebeck effect (thermopower) and the open circuit heat conductivity are intertwined with the electric conductivity. The magnitude of Seebeck tensor is parametrically enhanced, compared to the non-interacting model, in a wide parameter range. While the longitudinal component of Seebeck response decreases with increasing electric anomalous Hall conductivity $σ_{xy}$, the transverse component depends on $σ_{xy}$ in a non-monotonous way. Via its effect on the Seebeck response, large $σ_{xy}$ enhances the longitudinal Lorenz ratio at a finite chemical potential. At the neutrality point, the transverse heat conductivity is determined by the Wiedemann-Franz law. Increasing the distance from the neutrality point, the transverse heat conductivity is enhanced by the transverse Seebeck effect and follows its non-monotonous dependence on $σ_{xy}$.
title: Multiparametric MRI in prostate cancer: a radiomic study on different diffusion and perfusion models
Creators: name: Cavaliere, Carlo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Genital / Reproductive system male
subject: Oncology
subject: Pelvis
subject: MR
subject: MR-Diffusion/Perfusion
subject: Image manipulation / Reconstruction
subject: Computer Applications-Detection, diagnosis
subject: Diagnostic procedure
subject: Staging
subject: Cancer
subject: Neoplasia
subject: Pathology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate radiomics features extracted from T2-weighted, diffusion weighted imaging (DWI), diffusion kurtosis imaging (DKI), Toft model (TM), and shutter-speed model (SSM) perfusion maps among prostate cancer (PCa), benign prostatic hyperplasia...
title: CT detection of brain parenchymal hyperdensity after endovascular reperfusion therapy for acute ischaemic stroke - features to differentiate contrast staining from haemorrhage
Creators: name: Tsui, Wai Chung Waylon
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Haemorrhage
subject: Acute
subject: Education
subject: CT
subject: Neuroradiology brain
subject: Contrast agents
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To understand the manifestation of hyperdensity detected in the brain parenchyma on CT after endovascular therapy and its clinical importance. 2. To illustrate CT features to differentiate intraparenchymal hemorrhage from contrast medium...
First order transition for the optimal search time of Lévy flights with resetting
Creators: name: Kusmierz, Lukasz
name: Majumdar, Satya N.
name: Sabhapandit, Sanjib
name: Schehr, Gregory
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study analytically an intermittent search process in one dimension. There is an immobile target at the origin and a searcher undergoes a discrete time jump process starting at $x_0\geq0$, where successive jumps are drawn independently from an arbitrary jump distribution $f(η)$. In addition, with a probability $0\leq r \leq1$ the position of the searcher is reset to its initial position $x_0$. The efficiency of the search strategy is characterized by the mean time to find the target, i.e., the mean first passage time (MFPT) to the origin. For arbitrary jump distribution $f(η)$, initial position $x_0$ and resetting probability $r$, we compute analytically the MFPT. For the heavy-tailed Lévy stable jump distribution characterized by the Lévy index $0
description: 5 pages, 6 figures
title: What is the influence of BMI on radiation dose in pelvic radiography?
Creators: name: Mekis, Nejc
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Radiographers
subject: Digital radiography
subject: Radiation safety

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: According to the World Health Organization (WHO) evidence, obesity worldwide has more than doubled in the last thirty years [1]. In Slovenia, for example, more than 55 % of the population aged 15 and over was overweight in the year 2007 [2]. It has...
Multimessenger Picture of J1048+7143
Creators: name: Kun, Emma
name: Jaroschewski, Ilja
name: Ghorbanietemad, Armin
name: Frey, Sándor
name: Tjus, Julia Becker
name: Britzen, Silke
name: Gabányi, Krisztina Éva
name: Kiselev, Vladimir
name: Schlegel, Leander
name: Schroller, Marcel
name: Reichherzer, Patrick
name: Cui, Lang
name: Wang, Xin
name: Shen, Yuling
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We draw the multimessenger picture of J1048+7143, a flat-spectrum radio quasar known to show quasi-periodic oscillations in the $γ$-ray regime. We generate the adaptively-binned Fermi Large Area Telescope light curve of this source above 168 MeV to find three major $γ$-ray flares of the source, such that all three flares consist of two-two sharp sub-flares. Based on radio interferometric imaging data taken with the Very Large Array, we find that the kpc-scale jet is directed towards west, while our analysis of $8.6$-GHz very long baseline interferometry data, mostly taken with the Very Long Baseline Array, revealed signatures of two pc-scale jets, one pointing towards east, one pointing towards south. We suggest that the misalignment of the kpc- and pc-scale jets is a revealing signature of jet precession. We also analyze the $5$-GHz total flux density curve of J1048+7143 taken with the Nanshan(Ur) and RATAN-600 single dish radio telescopes and find two complete radio flares, slightly lagging behind the $γ$-ray flares. We model the timing of $γ$-ray flares as signature of the spin-orbit precession in a supermassive black hole binary, and find that the binary could merge in the next $\sim 60-80$ years. We show that both the Pulsar Timing Arrays and the planned Laser Interferometer Space Antenna lack sensitivity and frequency coverage to detect the hypothetical supermassive black hole binary in J1048$+$7143. We argue that the identification of sources similar to J1048+7143 plays a key role to reveal periodic high-energy sources in the distant Universe.
description: 17 pages, 8 figures, 3 tables. Accepted for publication in ApJ
Optimal regularity in the optimal switching problem
Creators: name: Aleksanyan, Gohar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this article we study the optimal regularity for solutions to the following weakly coupled system with interconnected obstacles \begin{equation*} \begin{cases} \min (-Δu^1+f^1, u^1-u^2+ψ^1)=0 \\ \min (-Δu^2+f^2, u^2-u^1+ψ^2)=0, \end{cases} \end{equation*} arising in the optimal switching problem with two modes. We derive the optimal $C^{1,1}$-regularity for the minimal solution under the assumption that the zero loop set $\mathscr{L}:= \{ ψ^1+ψ^2=0\}$ is the closure of its interior. This result is optimal and we provide a counterexample showing that the $C^{1,1}$-regularity does not hold without the assumption $\mathscr{L} = \overline{ \mathscr{L}^0} $.
description: 19 pages, preprint
Report on the Task Team Feature Fidelity (2021)
Creators: name: Cornillon, Peter
name: Gonzalez-Haro, Cristina
Publisher: name: Zenodo
Year: 2021

description: Objectives The objective of this task team is to address issues related to the uncertainty of satellite-derived SST fields as relates to ocean features. Uncertainty estimates of SST fields generally apply to the absolute value of the SST of individual pixels as opposed to the relative uncertainty of the value of one pixel to that of another 'nearby' pixel – the precision of the measurement. These two uncertainties can be very different with the latter tending to be more relevant to the study of oceanographic features, e.g., fronts, gradients, eddies, etc., than the former. The task team would like to categorize the classes of problems contributing to the uncertainty associated with mesoscale to submesoscale features and, to the extent possible, outline a methodology for quantifying these effects. To achieve this we define three tasks: 1) the classification of the types of features to be considered, 2) the identification of the ‘effects’ important for the characterization of the uncertainties associated with these features and 3) putting it all together – outlining approaches to determine the uncertainty relevant to the study of mesoscale through submesoscale features observed in SST fields.
Low Temperature Transport Properties of Very Dilute Classical Solutions of $^3$He in Superfluid $^4$He
Creators: name: Baym, Gordon
name: Beck, D. H.
name: Pethick, C. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report microscopic calculations of the thermal conductivity, diffusion constant and thermal diffusion constant for classical solutions of $^3$He in superfluid $^4$He at temperatures $T \la 0.6$~K, where phonons are the dominant excitations of the $^4$He. We focus on solutions with $^3$He concentrations $\la \,10^{-3}$, for which the main scattering mechanisms are phonon-phonon scattering via 3-phonon Landau and Beliaev processes, which maintain the phonons in a drifting equilibrium distribution, and the slower process of $^3$He-phonon scattering, which is crucial for determining the $^3$He distribution function in transport. We use the fact that the relative changes in the energy and momentum of a $^3$He atom in a collision with a phonon are small to derive a Fokker-Planck equation for the $^3$He distribution function, which we show has an analytical solution in terms of Sonine polynomials. We also calculate the corrections to the Fokker-Planck results for the transport coefficients.
description: 29 pages, 2 figures
New aromatic polyketides from the marine-derived fungus Pseudopithomyces maydicus PSU-AMF350 and their antimicrobial activity
Creators: name: Ningsih, Baiq Nila Sari
name: Rukachaisirikul, Vatcharin
name: Pansrinun, Supansa
name: Phongpaichit, Souwalak
name: Preedanon, Sita
name: Sakayaroj, Jariya
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Four new aromatic polyketides including two diphenyl ethers (pseudopithoethers A–B, 1-2), one benzofuranone (pseudopithonone, 3) and one xanthone (pseudopithoxanthone, 4), along with two known compounds (5-6) and one new naturally occurring hydroquinone (α,2,5-trihydroxyacetophenone, 7) were isolated from the marine-derived fungus Pseudopithomyces maydicus PSU-AMF350. Their structures were identified by analysis of spectroscopic data. All isolated compounds were tested for antimicrobial activity. Only compound 7 displayed antibacterial activity against methicillin-resistant Staphylococcus aureus with the MIC value of 128 µg/mL and against S. aureus, Acinetobacter baumannii NPRC005 and A. baumannii NPRC007 with the same MIC value of 200 µg/mL.
Formation of Isothermal Disks around Protoplanets. I. Introductory Three-Dimensional Global Simulations for Sub-Neptune-Mass Protoplanets
Creators: name: Wang, Hsiang-Hsu
name: Bu, Defu
name: Shang, Hsien
name: Gu, Pin-Gao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The regular satellites found around Neptune ($\approx 17~M_{\Earth}$) and Uranus ($\approx 14.5~M_{\Earth}$) suggest that past gaseous circumplanetary disks may have co-existed with solids around sub-Neptune-mass protoplanets ($< 17~M_{\Earth}$). These disks have been shown to be cool, optically thin, quiescent, with low surface density and low viscosity. Numerical studies of the formation are difficult and technically challenging. As an introductory attempt, three-dimensional global simulations are performed to explore the formation of circumplanetary disks around sub-Neptune-mass protoplanets embedded within an isothermal protoplanetary disk at the inviscid limit of the fluid in the absence of self-gravity. Under such conditions, a sub-Neptune-mass protoplanet can reasonably have a rotationally supported circumplanetary disk. The size of the circumplanetary disk is found to be roughly one-tenth of the corresponding Hill radius, which is consistent with the orbital radii of irregular satellites found for Uranus. The protoplanetary gas accretes onto the circumplanetary disk vertically from high altitude and returns to the protoplanetary disk again near the midplane. This implies an open system in which the circumplanetary disk constantly exchanges angular momentum and material with its surrounding prenatal protoplanetary gas.
description: 22 pages, 4 figures, 1 table. Accepted for publication in ApJ
title: A retrospective study for identifying signs of diseased bronchial artery in bronchial artery embolization(BAE).
Creators: name: Kamble, Akshaykumar
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Interventional vascular
subject: Catheter arteriography
subject: Embolisation
subject: Embolism / Thrombosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate both direct and indirectsignsof the diseasedbronchialartery. To know whichsignsare more sensitive and which are rarer. Comparisonofthis descriptive data from developing the country with thatofdeveloped countries as both have different...
Control of single-spin magnetic anisotropy by exchange coupling
Creators: name: Oberg, Jenny C.
name: Calvo, M. Reyes
name: Delgado, Fernando
name: Moro-Lagares, Maria
name: Serrate, David
name: Jacob, David
name: Fernandez-Rossier, Joaquin
name: Hirjibehedin, Cyrus F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The properties of quantum systems interacting with their environment, commonly called open quantum systems, can be strongly affected by this interaction. While this can lead to unwanted consequences, such as causing decoherence in qubits used for quantum computation, it can also be exploited as a probe of the environment. For example, magnetic resonance imaging is based on the dependence of the spin relaxation times of protons in water molecules in a host's tissue. Here we show that the excitation energy of a single spin, which is determined by magnetocrystalline anisotropy and controls its stability and suitability for use in magnetic data storage devices, can be modified by varying the exchange coupling of the spin to a nearby conductive electrode. Using scanning tunnelling microscopy and spectroscopy, we observe variations up to a factor of two of the spin excitation energies of individual atoms as the strength of the spin's coupling to the surrounding electronic bath changes. These observations, combined with calculations, show that exchange coupling can strongly modify the magnetic anisotropy. This system is thus one of the few open quantum systems in which the energy levels, and not just the excited-state lifetimes, can be controllably renormalized. Furthermore, we demonstrate that the magnetocrystalline anisotropy, a property normally determined by the local structure around a spin, can be electronically tuned. These effects may play a significant role in the development of spintronic devices5 in which an individual magnetic atom or molecule is coupled to conducting leads.
description: 15 pages, 3 figures, Nature Nanotechnology 9, 64 (2014)
title: An update on the diagnosis and classification of cystic lesions of spinal channel
Creators: name: Fernández Cabrera, Carlos
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cysts
subject: Diagnostic procedure
subject: MR
subject: Neuroradiology spine

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: -Recognize cystic lesions of the spinal channel according to their localization and dependency. -Review and update the current classifications for the meningeal cystic lesions, taking a close look at the etiology and therapeutic...
The Effectiveness of Bidirectional Generative Patent Language Models
Creators: name: Lee, Jieh-Sheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Generative patent language models can assist humans to write patent text more effectively. The question is how to measure effectiveness from a human-centric perspective and how to improve effectiveness. In this manuscript, a simplified design of the autocomplete function is proposed to increase effectiveness by more than 10%. With the new design, the effectiveness of autocomplete can reach more than 60%, which means that more than 60% of keystrokes can be saved by autocomplete. Since writing patent text does not necessarily start from the beginning to the end, a question is whether the generative model can assist a user no matter where to start writing. To answer the question, the generative models in this manuscript are pre-trained with training data in both directions. The generative models become bidirectional. Since text generation is bidirectional, the calculation of autocomplete effectiveness can be bidirectional and starts from anywhere in the text. After thorough experiments, a key finding is that the autocomplete effectiveness of a model for the same text remains similar no matter where the calculation starts. The finding indicates that such bidirectional models can assist a user at a similar level, no matter where the user starts to write.
description: 10 pages, 3 figures, 5 tables
Spazio europeo e clausole di deroga dei trattati internazionali in materia di diritti umani: spunti dalla nuova prassi relativa all’emergenza pandemica
Creators: name: Eboli, Valeria
Publisher: name: Universita' degli Studi di Salerno
Year: 2021
Subjects: Derogation clause
Suspension of rights
Pandemic
Emergency
Human rights

description: The paper seeks to analyze the impact of the pandemic on the practice of the States about the proclamation of a state of emergency and their related obligations arising from the main human rights treaties in this regard. In particular, the analysis focuses on how far such a situation may be used to invoke a derogation clause, such as those contained in Art. 15 of the European Human Rights Convention, Article 4 of the International Covenant on civil and political rights, Article 27 of the American Convention on Human Rights or Art. 4 of the Arab Charter of Human Rights. The paper will review the state practice related to the derogations invoked to deal with COVID 19, in order to assess whether it is in line with past practice or significant novelties have emerged.
Influence of the Anisometry of Magnetic Particles on the Isotropic-Nematic Phase Transition
Creators: name: Gdovinová, V.
name: Tomašovičová, N.
name: Éber, N.
name: Tóth-Katona, T.
name: Závišová, V.
name: Timko, M.
name: Kopčanský, P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The influence of the shape anisotropy of magnetic particles on the isotropic-nematic phase transition was studied in ferronematics based on the nematic liquid crystal 4-(trans-4-n-hexylcyclohexyl)-isothiocyanato-benzene (6CHBT). The liquid crystal was doped with spherical or rod-like magnetic particles of different size and volume concentrations. The phase transition from isotropic to nematic phase was observed by polarizing microscope as well as by capacitance measurements. The influence of the concentration and the shape anisotropy of the magnetic particles on the isotropic-nematic phase transition in liquid crystal is demonstrated. The results are in a good agreement with recent theoretical predictions.
description: 13 pages, 5 figures, to appear in Liq. Cryst
Genus Thielavia: phytochemicals, industrial importance and biological relevance
Creators: name: Ibrahim, Sabrin R. M.
name: Altyar, Ahmed E.
name: Mohamed, Shaimaa G. A.
name: Mohamed, Gamal A.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Thielavia species (Chaetomiaceae) are a wealthy source of enzymes such as laccases, cutinases, glucuronoyl esterases, feruloyl esterases, 1,4-β-endoglucanase and lytic polysaccharide monooxygenases that reported to have various biotechnological and industrial applications in dye decolorization, bio-refinery, biomass utilization, ester biosynthesis and biodegradation. Different metabolites have been reported from this genus as depsides, azaphilones, pyrazines, naphthodianthrones and anthraquinones derivatives. These metabolites have attracted research interest due to their fascinating structures and diverse bioactivities, including antimicrobial, cytotoxic, antioxidant, anti-diabetic, and superoxide anion generation, phospholipase, prostaglandins synthesis and proteasome inhibitory activities. Therefore, these compounds can be taken into account as candidates for the development of effective and novel pharmaceutical leads. The current review represents the relevant information for the Thielavia genus, in particular, its phytoconstituents and their pharmacological activities, as well as the biotechnological applications of Thielavia species published from 1981 till now. More than 40 metabolites are described and - 71 references are cited.
title: Reducing the effective dose in uro-CT, but… How does monophasic protocols affect the routine of the daily workflow?
Creators: name: Testa, Francesco
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Urinary Tract / Bladder
subject: Radioprotection / Radiation dose
subject: Management
subject: CT
subject: Diagnostic procedure
subject: Technical aspects
subject: Radiation safety
subject: Calcifications / Calculi

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Dynamic CT studies of the urinary tract, may involvebasal, arterial, parenchymal and excretory phases. This technique canadminister an important radiation dose to the patients. To limit the effective dose on patients, monophasic strategies are...
Interacting Scalar and Electromagnetic Fields in $f(R,\,T)$ Theory of Gravity
Creators: name: Saha, Bijan
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Within the scope of $f(R,\,T)$ gravity we have studied the interacting scalar and electromagnetic fields in a Bianchi type I universe. It was found that if the study is confined to the case $f(R,\,T) = R + λf(T)$, the system is completely given by the equations similar to Einstein gravity. Moreover, the present study imposes some severe restrictions on the field equations as well.
description: 12 pages
title: Correlation between heart chambers volumes and heart rate using cardiac gated CT angiography
Creators: name: Shalmon, Tamar
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Image verification
subject: Computer Applications-3D
subject: CT-Angiography
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: • Accurate evaluation of the heart volume can contribute to the diagnosis of heart pathologies. • Currently, the assessment of the cardiac chambers volumes, in every modality (echo/MRI) is usually adjusted to gender and body surface area only...
Bioassay-guided isolation of vilasinin–type limonoids and phenyl alkene from the leaves of Trichilia gilgiana and their antiplasmodial activities
Creators: name: Kowa, Théodora K.
name: Jansen, Olivia
name: Ledoux, Allison
name: Mamede, Lucia
name: Wabo, Hippolyte K.
name: Tchinda, Alembert T.
name: Genta-Jouve, Gregory
name: Frédérich, Michel
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Plant Biology

description: Bioassay-guided fractionation of the CH2Cl2-MeOH (1:1) leaves extract of Trichilia gilgiana, yielded two new vilasinin-type limonoids named gilgianin A (1) and gilgianin B (2), one new phenyl alkene derivative designated as gilgialkene A (3), along with six known compounds: rubescin H (4), TS3 (5), trichirubine A (6), sitosteryl-6′-O-undecanoate-β-D-glucoside (7), scopoletin (8), and octadecane-2-one (9). Their structures were elucidated based on spectroscopic analysis and comparison with literature data. Compounds 5 and 6 exhibited the highest antiplasmodial activity with IC50 values of 1.14 and 1.32 μM respectively. Moreover, compound 5 was very cytotoxic with CC50 value of 0.88 µM, compared to compound 6, which was not cytotoxic (CC50 > 10 µg/mL). Compounds 1 (IC50 = 9.84 µM), 2 (IC50 = 11.04 µM) and 4 (IC50 = 10.71 µM) presented good antiplasmodial activity while also exhibiting significant cytotoxicity, with CC50 values ranging from of 14.45 to 29.7 µM.
Growth and superconducting anisotropies of F-substituted LaOBiSe2 single crystals
Creators: name: Nagao, Masanori
name: Tanaka, Masashi
name: Watauchi, Satoshi
name: Tanaka, Isao
name: Takano, Yoshihiko
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: F-substituted LaOBiSe2 single crystals were grown using CsCl flux. The obtained single crystals showed a plate-like shape with a size of about 1.0 mm square. The c-axis lattice constant of the grown crystals was determined to be 14.114(3) Å. The superconducting critical temperature of the single crystal was approximately 3.5 K. The superconducting anisotropies were determined to be 49 and 24 using the upper critical field and the effective mass model, respectively.
description: 18 pages, 7 figures
The need for obscured supermassive black hole growth to explain quasar proximity zones in the epoch of reionization
Creators: name: Satyavolu, Sindhu
name: Kulkarni, Girish
name: Keating, Laura C.
name: Haehnelt, Martin G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Proximity zones of high-redshift quasars are unique probes of supermassive black hole formation, but simultaneously explaining proximity zone sizes and black hole masses has proved to be challenging. We study the robustness of some of the assumptions that are usually made to infer quasar lifetimes from proximity zone sizes. We show that small proximity zones can be readily explained by quasars that vary in brightness with a short duty cycle of $f_\mathrm{duty}\sim 0.1$ and short bright periods of $t_\mathrm{on}\sim 10^4$ yr, even for long lifetimes. We further show that reconciling this with black hole mass estimates requires the black hole to continue to grow and accrete during its obscured phase. The consequent obscured fractions of $\gtrsim$ 0.7 or higher are consistent with low-redshift measurements and models of black hole accretion. Such short duty cycles and long obscured phases are also consistent with observations of large proximity zones, thus providing a simple, unified model for proximity zones of all sizes. The large dynamic range of our simulation, and its calibration to the Lyman-$α$ forest, allows us to investigate the influence of the large-scale topology of reionization and the quasar's host halo mass on proximity zones. We find that incomplete reionization can impede the growth of proximity zones and make them smaller up to 30%, but the quasar host halo mass only affects proximity zones weakly and indirectly. Our work suggests that high-redshift proximity zones can be an effective tool to study quasar variability and black hole growth.
description: 19 pages, 17 figures, Accepted for publication in MNRAS
Three new compounds from the leaves of Castanopsis tibetana Hance
Creators: name: Wang, Ya-Feng
name: He, Rui-Jie
name: Li, Dian-Peng
name: Huang, Yong-Lin
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: Plant Biology

description: Three new compounds (6S,9S)-6′-galloyl-roseoside (1), purpurogallin ethyl carboxylate (2), and tibetana A (3) were isolated from 80% methanol extract of the leaves of Castanopsis tibetana Hance. Their structures were elucidated based on comprehensive spectroscopic methods and chemical data, including optical rotation, UV, MS, 1 D and 2 D NMR spectra. Compounds 1 and 3 were evaluated for their α-glucosidase inhibitory activity, pancreatic lipase inhibitory activity, and tyrosinase inhibitory activity.
Oscillations in a sunspot with light bridges
Creators: name: Yuan, Ding
name: Nakariakov, Valery M.
name: Huang, Zhenghua
name: Li, Bo
name: Su, Jiangtao
name: Yan, Yihua
name: Tan, Baolin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar Optical Telescope onboard Hinode observed a sunspot (AR 11836) with two light bridges (LBs) on 31 Aug 2013. We analysed a 2-hour \ion{Ca}{2} H emission intensity data set and detected strong 5-min oscillation power on both LBs and in the inner penumbra. The time-distance plot reveals that 5-min oscillation phase does not vary significantly along the thin bridge, indicating that the oscillations are likely to originate from the underneath. The slit taken along the central axis of the wide light bridge exhibits a standing wave feature. However, at the centre of the wide bridge, the 5-min oscillation power is found to be stronger than at its sides. Moreover, the time-distance plot across the wide bridge exhibits a herringbone pattern that indicates a counter-stream of two running waves originated at the bridge sides. Thus, the 5-min oscillations on the wide bridge also resemble the properties of running penumbral waves. The 5-min oscillations are suppressed in the umbra, while the 3-min oscillations occupy all three cores of the sunspot's umbra, separated by the LBs. The 3-min oscillations were found to be in phase at both sides of the LBs. It may indicate that either LBs do not affect umbral oscillations, or umbral oscillations at different umbral cores share the same source. Also, it indicates that LBs are rather shallow objects situated in the upper part of the umbra. We found that umbral flashes follow the life cycles of umbral oscillations with much larger amplitudes. They cannot propagate across LBs. Umbral flashes dominate the 3-min oscillation power within each core, however, they do not disrupt the phase of umbral oscillation.
description: 11 pages, 7 figures
title: A prelude to the Caucasus Barcode of Life Platform (CaBOL): Biodiversity Days in Georgia in 2018 and 2019
Creators: name: Thormann, Jana
name: Ahrens, Dirk
name: Anderson, Cort
name: Astrin, Jonas
name: Mumladze, Levan
name: Rulik, Björn
name: Tarkhnishvili, David
name: Espeland, Marianne
name: Geiger, Matthias
name: Hein, Nils
name: Iankoshvili, Giorgi
name: Karalashvili, Elisabeth
name: Mengual, Ximo
name: Morkel, Carsten
name: Neiber, Marco
name: Peters, Ralph
name: Reimann, André
name: Ssymank, Axel
name: Wesener, Thomas
name: Ziegler, Joachim
name: Misof, Bernhard
Publisher: name: Zoological Research Museum Alexander Koenig
Year: 2019
Subjects: subject: GBOL
subject: GGBC
subject: DNA barcoding
subject: Kintrishi
subject: Kazbegi

description: Here we report on collaborative expeditions run by ISU (Ilia State University, Tbilisi), ZFMK (Zoologisches Forschungsmuseum Alexander Koenig, Bonn) and external taxonomists in Georgia in 2018 and 2019 as part of the renewed close cooperation between Germany and Caucasus countries aiming at the exploration of biodiversity in the Caucasus region. The 2018 and 2019 field work campaigns serve as a starting point for a larger cooperative venture, planned to start in 2020 – the Caucasus Barcode of Life Platform (CaBOL). To encourage participation by additional partners and to build an active expert network, we here describe the so-far collected material and collection methods, provide detailed information on collecting sites and the diversity of habitats and outline the goals of the planned CaBOL project. Building on experiences from the German Barcode of Life (GBOL) initiative, our goal is to increase expertise and capacity in the region for modern integrative taxonomy approaches.
title: Pictorial review of inflammatory demyelinating CNS disease and treatment complications
Creators: name: Saeed, Asad
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Inflammation
subject: Education
subject: MR
subject: Neuroradiology spine
subject: Neuroradiology brain

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To illustrate typical MRI imaging findings for inflammatory demyelinating CNS diseases including multiple sclerosis (MS), neuromyelitis optica (NMO), tumefactive demyelinating lesions (TDL) and acute disseminated encephalomyelitis (ADEM) To identify...
title: Serum albumin, total bilirubin, and patient age are independently correlated with hepatobiliary phase gadoxetate liver enhancement
Creators: name: Pozdnyakova, Viktoria
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Abdomen
subject: Liver
subject: Contrast agents
subject: MR
subject: MR-Functional imaging
subject: Contrast agent-intravenous
subject: Artifacts

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Gd-EOB-DTPA is an intravenous liver specific magnetic resonance imaging (MRI) contrast agent widely used for detection and characterization of liver lesions [1,2]. A good contrast-to noise ratio between the lesion and the surrounding liver...
Cross-dimensional phase transition from an array of 1D Luttinger liquids to a 3D Bose-Einstein condensate
Creators: name: Vogler, Andreas
name: Labouvie, Ralf
name: Barontini, Giovanni
name: Eggert, Sebastian
name: Guarrera, Vera
name: Ott, Herwig
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the thermodynamic properties of a 2D array of coupled one-dimensional Bose gases. The system is realized with ultracold bosonic atoms loaded in the potential tubes of a two-dimensional optical lattice. For negligible coupling strength, each tube is an independent weakly interacting 1D Bose gas featuring Tomonaga Luttinger liquid behavior. By decreasing the lattice depth, we increase the coupling strength between the 1D gases and allow for the phase transition into a 3D condensate. We extract the phase diagram for such a system and compare our results with theoretical predictions. Due to the high effective mass across the periodic potential and the increased 1D interaction strength, the phase transition is shifted to large positive values of the chemical potential. Our results are prototypical to a variety of low-dimensional systems, where the coupling between the subsystems is realized in a higher spatial dimension such as coupled spin chains in magnetic insulators.
description: 5 pages, 5 pictures, final version, Phys. Rev. Lett. in print (2014)
Effimere, virtuali, globali: a proposito della recente storiografia sulle esposizioni universali
Creators: name: Pellegrino, Anna
Publisher: name: A. Pellegrino, Effimere, virtuali, globali: a proposito della recente storiografia sulle esposizioni universali, «Memoria e Ricerca», 54, 2017, pp. 135-154
Year: 2017

description: The article moves from the experience of Expo Milano 2015, to make a critical point of the recent historiography on the subject, in particular with two publications in the Italian case: the special issue of «Memoria e Ricerca» in 2004, and «Ricerche Storiche» 2015. World exhibitions, considered since 2004 as antecedents of today's virtualization and globalization processes, are analyzed across this decade - through several studies, but also conferences and exhibitions. The attention is focused on new «informational paradigm» of contemporary society and also on the formation process of a «public space» of technology. They are examined for the imaginary, but also for the footprint that they leave in the urban space of the metropolis. They fuel the colonial and imperial conscience of Europe, but at the same time they respond to a logic of internalization of social control, operating as phantasmagoria able to conceal the hierarchy and domination relations inherent in the capitalist system.
assim saude preço
Creators: name: Assim Saude
Publisher: name: Zenodo
Year: 2020
Subjects: assim saúde preço

description: assim saude preço Assim Saúde | Descubra tudo sobre esse Plano De Saúde Agora!
 Em primeiro lugar, o Plano Assim Saúde é uma das primeiras empresas que vem ao pensamento do carioca quando o assunto é plano de saúde. Desse modo, sendo uma rede de sucesso, oferecem planos com ótimo custo-benefício e muita qualidade, ela é uma das queridas do mercado. A Assim Saúde, operadora de planos de saúde, fundada em 1988, no Rio de Janeiro, tem atualmente mais de 700.000 clientes e atuam em toda a região do Rio e Grande Rio.
The Emergent Universe scheme and Tunneling
Creators: name: Labrana, Pedro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an alternative scheme for an Emergent Universe scenario, developed previously in $Phys.\ Rev.\ D {\bf 86}, 083524 (2012)$, where the universe is initially in a static state supported by a scalar field located in a false vacuum. The universe begins to evolve when, by quantum tunneling, the scalar field decays into a state of true vacuum. The Emergent Universe models are interesting since they provide specific examples of non-singular inflationary universes.
description: 10 pages, 6 figures. Talk given at the 2nd Russian-Spanish meeting on particle physics at all scales, Saint Petersburg (Russia), October 2013