cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
HISTORY OF GASTRONOMIC TOURISM IN UZBEKISTAN
Creators: name: Jumayev, Buron
Publisher: name: Zenodo
Year: 2023

description: In our scientific work, information is given in chronological order about the history of gastronomic tourism, which is an important type of tourism, in Uzbekistan, as well as details of the reforms implemented in this field during the years of independence and future plans, the importance of the role of this type in the tourism industry, information about gastronomic associations. information provided. , institutions and organizations. Today's achievements in the field of gastronomic tourism are partially highlighted, the internal possibilities of this type are widely shown, and a number of scientific and practical suggestions for the development of gastronomic tourism are given.
Photoproduction of phi meson off deuteron near threshold
Creators: name: Titov, A. I.
name: Kämpfer, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss coherent and incoherent $ϕ$ meson photoproduction off the deuteron at low energy and small momentum transfer with the aim to check whether the recent experimental data need for their interpretation the inclusion of exotic channels. Our analysis of the differential cross section and spin-density matrix elements shows that the existing data may be understood on the base of conventional dynamics. For a firm conclusion about a possible manifestation of exotic channels one has to improve the resolution of the data with providing additional information on channels with spin- and double-spin flip transitions being sensitive to the properties of the photoproduction amplitude in $γp$ and $γD$ reactions.
description: 26 pages, 19 figures
Additional file 1 of Systemic evolutionary chemical space exploration for drug discovery
Creators: name: Lu, Chong
name: Liu, Shien
name: Shi, Weihua
name: Yu, Jun
name: Zhou, Zhou
name: Zhang, Xiaoxiao
name: Lu, Xiaoli
name: Cai, Faji
name: Xia, Ning
name: Wang, Yikai
Publisher: name: figshare
Year: 2022
Subjects: Biochemistry
Space Science
Neuroscience
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Mental Health

description: Additional file 1: Fragment library generation and clustering algorithms.
Robust Limits from Upcoming Neutrino Telescopes and Implications on Minimal Dark Matter Models
Creators: name: Pree, S. Basegmez du
name: Arina, C.
name: Cheek, A.
name: Dekker, A.
name: Chianese, M.
name: Ando, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Experimental developments in neutrino telescopes are drastically improving their ability to constrain the annihilation cross-section of dark matter. In this paper, we employ an angular power spectrum analysis method to probe the galactic and extra-galactic dark matter signals with neutrino telescopes. We first derive projections for a next generation of neutrino telescope that is inspired by KM3NeT. We emphasise that such analysis is much less sensitive to the choice of dark matter density profile. Remarkably, the projected sensitivity is improved by more than an order of magnitude with respect to the existing limits obtained by assuming the Burkert dark matter density profile describing the galactic halo. Second, we analyse minimal extensions to the Standard Model that will be maximally probed by the next generation of neutrino telescopes. As benchmark scenarios, we consider Dirac dark matter in $s$- and $t$-channel models with vector and scalar mediators. We follow a global approach by examining all relevant complementary experimental constraints. We find that neutrino telescopes will be able to competitively probe significant portions of parameter space. Interestingly, the anomaly-free $L_μ-L_τ$ model can potentially be explored in regions where the relic abundance is achieved through freeze-out mechanism.
Measurements of Luminescence from Cleaved Silicon
Creators: name: Li, Dongguang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper outlines the results from experiments performed to gain further information about the structure and properties of cleaved silicon surfaces, using vacuum cleavage luminescence detection methods. The experiments involved detecting the luminescence produced by cleaving thin silicon plates within a high vacuum, by a process of converting the luminescence to an amplified electrical signal.
description: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
Rapid Formation of Super-Earths Around Low-Mass Stars
Creators: name: Zawadzki, Brianna
name: Carrera, Daniel
name: Ford, Eric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: NASA's TESS mission is expected to discover hundreds of M dwarf planets. However, few studies focus on how planets form around low-mass stars. We aim to better characterize the formation process of M dwarf planets to fill this gap and aid in the interpretation of TESS results. We use ten sets of N-body planet formation simulations which vary in whether a gas disc is present, initial range of embryo semi-major axes, and initial solid surface density profile. Each simulation begins with 147 equal-mass embryos around a 0.2 solar mass star and runs for 100 Myr. We find that planets form rapidly, with most collisions occurring within the first 1 Myr. The presence of a gas disc reduces the final number of planets relative to a gas-free environment and causes planets to migrate inward. We find that roughly a quarter of planetary systems experience their final giant impact inside the gas disc, suggesting that some super-Earths may be able to reaccrete an extended gaseous envelope after their final giant impact, though these may be affected by additional process such as photoevaporation. In addition, we find that the final distribution of planets does not retain a memory of the slope of the initial surface density profile, regardless of whether or not a gas disc is present. Thus, our results suggest that present-day observations are unlikely to provide sufficient information to accurately reverse-engineer the initial distribution of solids.
description: 17 pages, 8 figures, accepted for publication in MNRAS
Additional file 2: of Extract of Paecilomyces hepiali mycelia induces lipolysis through PKA-mediated phosphorylation of hormone-sensitive lipase and ERK-mediated downregulation of perilipin in 3T3-L1 adipocytes
Creators: name: Ge, Mei
name: Guo, Rui
name: Lou, Hai-xia
name: Zhang, Wen
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology

description: Table S1. Linear regression data and precision of four nucleosides (DOCX 17 kb)
Meson-exchange currents and superscaling analysis with relativistic effective mass of quasielastic electron scattering from $^{12}$C
Creators: name: Martinez-Consentino, V. L.
name: Simo, I. Ruiz
name: Amaro, J. E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reanalyze the scaling properties of inclusive quasielastic electron scattering from $^{12}$C by subtracting from the data the effects of two-particle emission. A model of relativistic meson-exchange currents (MEC) is employed within the mean field theory of nuclear matter, with scalar and vector potentials that induce an effective mass and a vector energy to the nucleons. A new phenomenological quasielastic scaling function is extracted from a selection of the data after the subtraction of the 2p-2h contribution. The resulting superscaling approach with relativistic effective mass (SuSAM*) can be used to compute the genuine quasielastic cross section without contamination of the 2p-2h channel that can then be added separately to obtain the total quasielastic plus two-nucleon emission response.
description: 13 pages, 9 figures
Angular momentum removal by neutron and $γ$-ray emissions during fission fragment decays
Creators: name: Stetcu, I.
name: Lovell, A. E.
name: Talou, P.
name: Kawano, T.
name: Marin, S.
name: Pozzi, S. A.
name: Bulgac, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We investigate the angular momentum removal from fission fragments (FFs) through neutron and $γ$-ray emission, where we find that about half the neutrons are emitted with angular momenta $\ge 1.5\hbar$ and that the change in angular momentum after the emission of neutrons and statistical $γ$ rays is significant, contradicting usual assumptions. Per fission event, in our simulations, the neutron and statistical $γ$-ray emissions change the spin of the fragment by 3.5 -- 5~$\hbar$, with a large standard deviation comparable to the average value. Such wide angular momentum removal distributions can hide any underlying correlations in the fission fragment initial spin values. Within our model, we reproduce data on spin measurements from discrete transitions after neutron emissions, especially in the case of light FFs. The agreement further improves for the heavy fragments if one removes from the analysis the events that would produce isomeric states. Finally, we show that while in our model the initial FF spins do not follow a saw-tooth like behavior observed in recent measurements, the average FF spin computed after neutron and statistical $γ$ emissions exhibits a shape that resembles a saw tooth. This suggests that the average FF spin measured after statistical emissions is not necessarily connected with the scission mechanism as previously implied.
description: 9 pages, 6 figures; version accepted for publication
Scuola, Democrazia e Filologia
Creators: name: Santini, Giovanna
name: Fuksas, Anatole Pierre
Publisher: name: Zenodo
Year: 2019

description: This is the final paper published in the volume La Filologia Medievale. Comparatistica, critica del testo e attualità, a c. di P. Canettieri, G. Santini, R. Tinaburri, R. Gamberini, «L’ERMA» di BRETSCHNEIDER, Roma, 2019
The value of PIDs
Creators: name: Vierkant, Paul
Publisher: name: Zenodo
Year: 2021
Subjects: DataCite
webinar
persistent identifier
PID
DOI
introduction

description: Research needs visibility and persistence in order to be found, cited and re-used. Registering persistent identifiers (PIDs) for research outputs supports this. A PID such as a Digital Object Identifier (DOI) helps researchers to increase the visibility and impact of their publications, research data, and other research outputs. This webinar, organized by AfLIA and DataCite, gives an overview of the value that PIDs provide, how researchers can start using PIDs and how organizations can register DOIs for different research outputs. In addition to speakers from DataCite, representatives from the UbuntuNet Alliance and the International Institute of Tropical Agriculture (IITA) will share their experiences of being a DataCite member.
Polarisation selective magnetic vortex dynamics and core reversal in rotating magnetic fields
Creators: name: Curcic, M.
name: Van Waeyenberge, B.
name: Weigand, M.
name: Vansteenkiste, A.
name: Sackmann, V.
name: Stoll, H.
name: Faehnle, M.
name: Tyliszczak, T.
name: Woltersdorf, G.
name: Back, C. H.
name: Schuetz, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A magnetic vortex occurs as an equilibrium configuration in thin ferromagnetic platelets of micron and sub-micron size and is characterised by an in-plane curling magnetisation. At the centre, a magnetic singularity is avoided by an out-of-plane magnetisation core. This core has a gyrotropic excitation mode, which corresponds to a circular motion of the vortex around its equilibrium position, where the rotation sense is determined by the direction of the vortex core magnetisation, its polarisation. Unlike linear fields or spin polarised currents, which excite both polarisation states, an in-plane rotating field can selectively excite one of the polarisation states. Here we report the observation of vortex dynamics in response to rotating magnetic fields, imaged with time-resolved scanning X-ray microscopy. We demonstrate that the rotating field only excites the gyrotropic mode if the rotation sense of the field coincides with the vortex gyration sense and that such a field can selectively reverse the vortex polarisation.
Scalable Hamiltonian learning for large-scale out-of-equilibrium quantum dynamics
Creators: name: Valenti, Agnes
name: Jin, Guliuxin
name: Léonard, Julian
name: Huber, Sebastian D.
name: Greplova, Eliska
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Large-scale quantum devices provide insights beyond the reach of classical simulations. However, for a reliable and verifiable quantum simulation, the building blocks of the quantum device require exquisite benchmarking. This benchmarking of large scale dynamical quantum systems represents a major challenge due to lack of efficient tools for their simulation. Here, we present a scalable algorithm based on neural networks for Hamiltonian tomography in out-of-equilibrium quantum systems. We illustrate our approach using a model for a forefront quantum simulation platform: ultracold atoms in optical lattices. Specifically, we show that our algorithm is able to reconstruct the Hamiltonian of an arbitrary size quasi-1D bosonic system using an accessible amount of experimental measurements. We are able to significantly increase the previously known parameter precision.
description: 13 pages, 13 figures, code: https://gitlab.com/QMAI/papers/manybodydynlearning
Self-Organization of a 2D Lattice on a Surface of Ge Single Crystal after Irradiation with Yag: ND Laser
Creators: name: Medvid, A.
name: Mychko, A.
name: Onufrievs, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Experimentally observed self-organization of a 2D lattice on the surface of Ge single crystal after irradiation by pulsed YAG: Nd laser is repoted. The calculation of time depended distribution of temperature in bulk of the Ge sample show that overheating of the crystal lattice occurs at laser radiation intensities exceeding 30MW/cm2.The two temperature gradients are exists.
description: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
Water at an electrochemical interface - a simulation study
Creators: name: Willard, Adam P.
name: Reed, Stewart K.
name: Madden, Paul A.
name: Chandler, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The results of molecular dynamics simulations of the properties of water in an aqueous ionic solution close to an interface with a model metallic electrode are described. In the simulations the electrode behaves as an ideally polarizable hydrophilic metal, supporting image charge interactions with charged species, and it is maintained at a constant electrical potential with respect to the solution so that the model is a textbook representation of an electrochemical interface through which no current is passing. We show how water is strongly attracted to and ordered at the electrode surface. This ordering is different to the structure that might be imagined from continuum models of electrode interfaces. Further, this ordering significantly affects the probability of ions reaching the surface. We describe the concomitant motion and configurations of the water and ions as functions of the electrode potential, and we analyze the length scales over which ionic atmospheres fluctuate. The statistics of these fluctuations depend upon surface structure and ionic strength. The fluctuations are large, sufficiently so that the mean ionic atmosphere is a poor descriptor of the aqueous environment near a metal surface. The importance of this finding for a description of electrochemical reactions is examined by calculating, directly from the simulation, Marcus free energy profiles for transfer of charge between the electrode and a redox species in the solution and comparing the results with the predictions of continuum theories. Significant departures from the electrochemical textbook descriptions of the phenomenon are found and their physical origins are characterized from the atomistic perspective of the simulations.
description: 29 pages, 15 figures
Pinitol ameliorates impaired pressure-natriuresis in experimental diabetes
Creators: name: Nilberto R. F. Nascimento
name: Lôrrainy U. A. S. Cortez
name: Sousa, Luis Gustavo Farias De
name: Manasses C. Fonteles
name: Santos, Cláudia Ferreira
Publisher: name: Figshare
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences

description: Pinitol ameliorates impaired pressure-natriuresis in experimental diabetesFASEB J. | Vol. 28, No. 1_supplement | Abstract Number: 1063.5Published Online: 1 Apr 2014Web of Science™ ID: 000346651000434Editor: FEDERATION AMER SOC EXP BIOL, 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USAGrant Funding Source: CNPq/Brazil; FUNCAP-CE/BrazilUniversidade Estadual do Ceará, Fortaleza, Brazil
Radar imaging glacio-volcanic stratigraphy : Mt. Wrangell, Alaska
Creators: name: Cross, Guy Matthew
Publisher: name: University of British Columbia
Year: 2010

description: An airborne radar survey was conducted over the ice-filled volcanic caldera at Mt. Wrangell, Alaska. Research reported here involves computer processing and interpretation of radio-reflection data acquired over 21 traverses of the summit. In addition to describing useful data enhancement techniques, a dynamic programming approach is introduced for topographically controlled data positioning and spatial correction. Interpretation focusses upon a well defined radio-stratigraphy attributed to high acidity horizons deposited at the ice surface during periods of elevated volcanic activity. A comparative analysis of layer character indicates that echoes from the caldera floor are not continuously detected because of anomalously high signal absorption. Consequently, results impose a lower limit upon maximum ice thickness. A numerical interpretation scheme, incorporating both glaciological measurements and empirical relations governing the behaviour of firn and ice, is developed to aid interpretation of the glacio-volcanic stratigraphy. Preliminary modelling yields a speculative volcanic record that roughly matches the known eruption sequence at Mt. Wrangell and suggests a significant extension of the volcanic history.
title: Updating Consistency in Bayes Factors
Creators: name: Schwaferts, Patrick
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2021

description: When it comes to extracting information from data by means of Bayes rule, it should not matter if all available data are considered at once or if Bayesian updating is performed subsequently with partitions of the data. This property is called updating consistency. However, in the context of Bayes factors, a prominent Bayesian tool that is used for comparing hypotheses, some researchers illustrated that updating consistency might not be given. Therefore, this technical report addresses the updating consistency of Bayes factors and shows its existence. In that, it serves as mathematical basis for the evaluation of the origin of putative updating inconsistencies. In addition, results about updating mixture priors are brought into the terminology commonly employed in the context of Bayes factors, as these were used in the elaboration about updating consistency. The depicted results imply that a necessary condition for updating consistency is to consider and report not only the Bayes factor value alone but also the posterior distributions as outcome of the analysis.
Pinitol ameliorates impaired pressure-natriuresis in experimental diabetes
Creators: name: Nilberto R. F. Nascimento
name: Lôrrainy U. A. S. Cortez
name: Sousa, Luis Gustavo Farias De
name: Manasses C. Fonteles
name: Santos, Cláudia Ferreira
Publisher: name: Figshare
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences

description: The FASEB JournalPinitol ameliorates impaired pressure-natriuresis in experimental diabetes
Nascimento, N.R.F., Cortez, L.U.A.S., Sousa, L.G.F., Fonteles, M.C., Santos, C.F.
FASEB J. | Vol. 28, No. 1_supplement | Abstract Number: 1063.5Published Online: 1 Apr 2014Editor: FEDERATION AMER SOC EXP BIOL, 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
Universidade Estadual do Ceará, Fortaleza, Brazil
Phase Transition in Space: How Far Does a Symmetry Bend Before It Breaks?
Creators: name: Zurek, Wojciech H.
name: Dorner, Uwe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend the theory of symmetry breaking dynamics in non-equilibrium second order phase transitions known as the Kibble-Zurek mechanism (KZM) to transitions where the change of phase occurs not in time, but in space. This can be due to a time-independent spatial variation of a field that imposes a phase with one symmetry to the left of where it attains critical value, while allowing spontaneous symmetry breaking to the right of that critical borderline. Topological defects need not form in such a situation. We show, however, that the size, in space, of the ``scar'' over which the order parameter adjusts as it ``bends'' interpolating between the phases with different symmetry follows from a KZM - like approach. As we illustrate on the example of a transverse quantum Ising model, in quantum phase transitions this spatial scale -- the size of the scar -- is directly reflected in the energy spectrum of the system: In particular, it determines the size of the energy gap.
description: 10 pages, 8 figures. Published online 5 June 2008
Implications for the Constrained MSSM from a new prediction for b to s gamma
Creators: name: Roszkowski, Leszek
name: de Austri, Roberto Ruiz
name: Trotta, Roberto
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We re-examine the properties of the Constrained MSSM in light of updated constraints, paying particular attention to the impact of the recent substantial shift in the Standard Model prediction for BR(B to X_s gamma). With the help of a Markov Chain Monte Carlo scanning technique, we vary all relevant parameters simultaneously and derive Bayesian posterior probability maps. We find that the case of μ>0 remains favored, and that for μ<0 it is considerably more difficult to find a good global fit to current constraints. In both cases we find a strong preference for a focus point region. This leads to improved prospects for detecting neutralino dark matter in direct searches, while superpartner searches at the LHC become more problematic, especially when μ<0. In contrast, prospects for exploring the whole mass range of the lightest Higgs boson at the Tevatron and the LHC remain very good, which should, along with dark matter searches, allow one to gain access to the otherwise experimentally challenging focus point region. An alternative measure of the mean quality-of-fit which we also employ implies that present data are not yet constraining enough to draw more definite conclusions. We also comment on the dependence of our results on the choice of priors and on some other assumptions.
description: JHEP version
Structural Evolution of the Brazilian Airport Network
Creators: name: da Rocha, Luis Enrique Correa
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: The aviation sector is profitable, but sensitive to economic fluctuations, geopolitical constraints and governmental regulations. As for other means of transportation, the relation between origin and destination results in a complex map of routes, which can be complemented by information associated to the routes themselves, for instance, frequency, traffic load or distance. The theory of networks provides a natural framework to investigate dynamics on the resulting structure. Here, we investigate the structure and evolution of the Brazilian Airport Network (BAN) for several quantities: routes, connections, passengers and cargo. Some structural features are in accordance with previous results of other airport networks. The analysis of the evolution of the BAN shows that its structure is dynamic, with changes in the relative relevance of some airports and routes. The results indicate that the connections converge to specific routes. The network shrinks at the route level but grows in number of passengers and amount of cargo, which more than doubled during the period studied.
description: 10 pages, 8 figures, 2 tables. The analysis moved from an airport-based network to a city-based network. The conclusions were unaffected
Effects of Ox-LDL on Macrophages NAD(P)H Autofluorescence Changes by Two-photon Microscopy
Creators: name: Lin, Ching-Ting
name: Tien, En-Kuang
name: Lee, Szu-Yuan
name: Lu, Long-Sheng
name: Wu, Chau-Chung
name: Dong, Chen-Yuan
name: Lin, Chii-Wann
Publisher: name: arXiv
Year: 2007
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Ox-LDL uptakes by macrophage play a critical role in the happening of atherosclerosis. Because of its low damage on observed cells and better signal-to- background ratio, two-photon excitation fluorescence microscopy is used to observe NAD(P)H autofluorescence of macrophage under difference cultured conditions- bare cover glass, coated with fibronectin or poly-D-lysine. The results show that the optimal condition is fibronectin coated surface, on which, macrophages profile can be clearly identified on NAD(P)H autofluorescence images collected by two-photon microscopy. Moreover, different morphology and intensities of autofluorescence under different conditions were observed as well. In the future, effects of ox-LDL on macrophages will be investigated by purposed system to research etiology of atherosclerosis.
description: Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)
Projected Rotational Velocities and Fundamental Properties of Low-Mass Pre-Main Sequence Stars in the Taurus-Auriga Star Forming Region
Creators: name: Nofi, Larissa A.
name: Johns-Krull, Christopher M.
name: López-Valdivia, Ricardo
name: Biddle, Lauren
name: Carvalho, Adolfo S.
name: Huber, Daniel
name: Jaffe, Daniel
name: Llama, Joe
name: Mace, Gregory
name: Prato, Lisa
name: Skiff, Brian
name: Sokal, Kimberly R.
name: Sullivan, Kendall
name: Tayar, Jamie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The projected stellar rotational velocity ($v \sin i$) is critical for our understanding of processes related to the evolution of angular momentum in pre-main sequence stars. We present $v \sin i$ measurements of high-resolution infrared and optical spectroscopy for 70 pre-main sequence stars in the Taurus-Auriga star-forming region, in addition to effective temperatures measured from line-depth ratios, and stellar rotation periods determined from optical photometry. From the literature, we identified the stars in our sample that show evidence of residing in circumstellar disks or multiple systems. The comparison of infrared $v \sin i$ measurements calculated using two techniques shows a residual scatter of $\sim$ 1.8 km s$^{-1}$, defining a typical error floor for the $v \sin i$ of pre-main sequence stars from infrared spectra. A comparison of the $v \sin i$ distributions of stars with and without companions shows that binaries/multiples typically have a higher measured $v \sin i$, which may be caused by contamination by companion lines, shorter disk lifetimes in binary systems, or tidal interactions in hierarchical triples. A comparison of optical and infrared $v \sin i$ values shows no significant difference regardless of whether the star has a disk or not, indicating that CO contamination from the disk does not impact $v \sin i$ measurements above the typical $\sim$ 1.8 km s$^{-1}$ error floor of our measurements. Finally, we observe a lack of a correlation between the $v \sin i$, presence of a disk, and H-R diagram position, which indicates a complex interplay between stellar rotation and evolution of pre-main sequence stars.
description: 20 pages, 11 figures, accepted for publication in ApJ
Nonlinear coupling of whistler waves to oblique electrostatic turbulence enabled by cold plasma
Creators: name: Roytershteyn, Vadim
name: Delzanno, Gian Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Kinetic simulations and theory demonstrate that whistler waves can excite oblique, short-wavelength fluctuations through secondary drift instabilities if a population of sufficiently cold plasma is present. The excited modes lead to heating of the cold populations and damping of the primary whistler waves. The instability threshold depends on the density and temperature of the cold population and can be relatively small if the temperature of the cold population is sufficiently low. This mechanism may thus play a significant role in controlling amplitude of whistlers in the regions of the Earth's magnetosphere where cold background plasma of sufficient density is present.
Preparation of Rubra (Paeonia lactiflora Pall. ) Extract and studies in Activity and Skin Penetration Materials and Methods.
Creators: name: Gao, Manqing
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 349999
subject: Other chemical sciences not elsewhere classified

description: Related materials and methods for preparation, activity study of Paeony extract, preparation of nanoemulsion and skin permeability study.
Digital impulse radar for glaciology : instrumentation, modelling, and field studies
Creators: name: Jones, Francis Hugh Melvill
Publisher: name: University of British Columbia
Year: 2010

description: Several aspects of impulse radar echo sounding of small glaciers are investigated. First, the ranges of values expected for conductivity and relative dielectric permittivity of glacier ice, glacier bed materials and mixtures of ice and rock are established. These parameters, and the fundamentals of electromagnetic wave propagation, are employed in a modelling scheme that examines the reflection of pulses from planar reflectors within the glacier. The glacier bed can be modelled as solid rock or unconsolidated debris and as either frozen or wet. A layer of mixed ice and rock between the glacier ice and bed can also be included. Signal enhancement, especially using multi-channel principal component analysis, is discussed. Discussion of practical application of the technique begins with the description of a portable microprocessor-controlled instrument capable of recording digitized echograms. Then results from experiments on Trapridge Glacier, Yukon Territory are presented. Surveys up to half a kilometer long with soundings at 1 to 20 m intervals were conducted. Bed topography is presented and locally anomalous sections are examined. Smaller-scale parameters such as the attenuation constant of ice and reflector properties are also extracted from the data. Subglacial and englacial temporal variations were studied by automatically recording echoes at one location every 20 minutes over a three-day period. Such experiments are to be used in the future in conjunction with other, concurrent, geophysical and hydrological investigations.
SEISMIC ASSESSMENT OF SUSPENDED CEILING SYSTEMS
Creators: name: Pentangelo, Vincenzo
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: Non-structural components in most types of commercial building represent a major portion of the total cost of the building and, as such, will represent a large portion of the potential losses to owners, occupants, and insurance companies.
Non structural components may be classified in three broad categories: architectural components, mechanical and electrical equipment, and contents.
Non-structural components play a fundamental role about safety of human lives during seismic events: in fact the collapse of suspended light fixtures, hung ceilings or partition walls; the plunging onto the ground of failed cladding panels, parapets, signboards, ornaments, or glass panels; the overturning of heavy equipment, book-shelves, storage racks, or pieces of furniture; and the rupture of pipes or containers with toxic materials are all capable of causing serious injury or death.
In this work seismic performance of suspended ceiling systems has been analyzed by plotting fragility curves obtained through real scale tests. In particular seismic assessment of suspended ceiling systems is carried out by performing shake table tests: in fact being ceilings elements not amenable to structural analysis, full-scale testing is the only feasible possibility to develop fragility curves. In particular single and double frame ceilings are tested on simulator platform (a 3m × 3m square table and two orthogonal horizontal degree of freedom system). The input to the table is provided through artificial time histories accelerations representative of expected/target ground motion and acting simultaneously along the two orthogonal directions of the platform simulator; these time histories are selected with the aim of matching the target or required response spectrum of non structural components. Three limit states are used in this study to characterize the seismic response of suspended ceiling systems, both single frame and double frame, and in particular: occupancy limit  state (10% damage), damage limit state (30% damage) and safety limit state (50% damage). From the first to the third one limit state considered, the damage in the ceiling increases: in fact when performing a damage analysis with fragility curves, the response is characterized as function of a damage state. Limit states are considered to be reached starting from visual detection of post-test condition of the specimen; indeed, at the end of shaking of each step in a test cycle, research team investigates accurately the physical conditions of components of ceilings in order to identify which limit state has been reached.
Electron-lattice and strain effects in manganite heterostructures
Creators: name: Iorio, Alfredo
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: A correlated inhomogeneous mean-field approach is proposed in order to study a tight-binding model of the manganite heterostructures (LaMnO3)2n/(SrMnO3)n with average hole doping x =1/3. Phase diagrams, spectral and optical properties of large heterostructures (up to 48 sites along
the growth direction) with a single interface are discussed analyzing the effects of electron-lattice anti-adiabatic fluctuations and strain. The formation of a metallic ferromagnetic interface is quite robust with varying the strength of electron-lattice coupling and strain, though the size of the interface region is strongly dependent on these interactions. The density of states never vanishes
at the chemical potential due to the formation of the interface, but it shows a rapid suppression with increasing the electron-lattice coupling. The in-plane and out-of-plane optical conductivities show sharp differences since the in-plane response has metallic features, while the out-of-plane one is characterized by a transfer of spectral weight to high frequency. The in-plane response mainly
comes from the region between the two insulating blocks, so that it provides a clear signature of the
formation of the metallic ferromagnetic interface.
Data Quality Monitoring and Performance Studies of the Resistive Plate Chamber Detector at the CMS Experiment at LHC.
Creators: name: Cimmino, Anna
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: The CMS detector is a sophisticated and massive system: 7 different detector technologies, a high number of front-end electronic channels (10^7) , an input rate of 10^9 interactions per second, a trigger able to reduce the frequency by a factor 10^5, and online computer farms with a storage capability rates of about 10^2 MB/s. CMS is foreseen to take data, with high efficiency, for
over 15 years. Clearly, assuring pristine and stable behavior of each of its components is critical and delicate task.
The CMS collaboration designed and built, in tandem with detector commissioning, a high-level Data Quality Monitoring (DQM) system for the reliable certification of recorded data for physics analyses. DQM debugs hardware, monitors detector and trigger performance behavior, and highlight problems or malfunctioning by processing calibration and physics data.
Definition of the requirements, design, and development of the RPC DQM system, as well as its use to study detector and trigger performance, have been the focus of this doctoral thesis work.
15. Island Hospice NGO & Healthcare (Zimbabwe)
Creators: name: Tsikai, Franciscah
Publisher: name: figshare
Year: 2021
Subjects: subject: 111099 Nursing not elsewhere classified
subject: FOS: Health sciences
subject: Cancer
subject: 111799 Public Health and Health Services not elsewhere classified

description: ZIMBABWE Tsikai, a palliative care consultant at Island Hospice and Healthcare shares her experiences during early days of COVID-19. She mentions the increase in counselling the hospice had to address. “Since the advent of COVID-19, Island now has limited capacities to meet the growing demand of patients who need counselling. Island has since adopted working virtually as an intervention to mitigate the challenges of physically meeting patients. Island is having to capacitate community volunteers to provide virtual counselling in the communities; volunteers will refer complex cases to Island.”
--- Ecancer Special Issue, December 2021Oncology Nursing in the Global South during COVID-19 Supplement
Search for dark-photon dark matter in the SuperMAG geomagnetic field dataset
Creators: name: Fedderke, Michael A.
name: Graham, Peter W.
name: Kimball, Derek F. Jackson
name: Kalia, Saarik
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In our recent companion paper [arXiv:2106.00022], we pointed out a novel signature of ultralight kinetically mixed dark-photon dark matter. This signature is a quasi-monochromatic, time-oscillating terrestrial magnetic field that takes a particular pattern over the surface of the Earth. In this work, we present a search for this signal in existing, unshielded magnetometer data recorded by geographically dispersed, geomagnetic stations. The dataset comes from the SuperMAG Collaboration and consists of measurements taken with one-minute cadence since 1970, with $\mathcal{O}(500)$ stations contributing in all. We aggregate the magnetic field measurements from all stations by projecting them onto a small set of global vector spherical harmonics (VSH) that capture the expected vectorial pattern of the signal at each station. Within each dark-photon coherence time, we use a data-driven technique to estimate the broadband background noise in the data, and search for excess narrowband power in this set of VSH components; we stack the searches in distinct coherence times incoherently. Following a Bayesian analysis approach that allows us to account for the stochastic nature of the dark-photon dark-matter field, we set exclusion bounds on the kinetic mixing parameter in the dark-photon dark-matter mass range $2\times10^{-18}\,\text{eV} \lesssim m_{A'} \lesssim 7\times10^{-17}\,\text{eV}$ (corresponding to frequencies $6\times 10^{-4}\,\text{Hz}\lesssim f_{A'} \lesssim 2\times 10^{-2}\,\text{Hz}$). These limits are complementary to various existing astrophysical constraints. Although our main analysis also identifies a number of candidate signals in the SuperMAG dataset, these appear to either fail or be in tension with various additional robustness checks we apply to those candidates. We report no robust and significant evidence for a dark-photon dark-matter signal in the SuperMAG dataset.
description: 41 pages, 11 figures. Published version
Field theoretic description of the abelian and non-abelian Josephson effect
Creators: name: Esposito, F. Paul
name: Guay, L. -P.
name: MacKenzie, R. B.
name: Paranjape, M. B.
name: Wijewardhana, L. C. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We formulate the Josephson effect in a field theoretic language which affords a straightforward generalization to the non-abelian case. Our formalism interprets Josephson tunneling as the excitation of pseudo-Goldstone bosons. We demonstrate the formalism through the consideration of a single junction separating two regions with a purely non-abelian order parameter and a sandwich of three regions where the central region is in a distinct phase. Applications to various non-abelian symmetry breaking systems in particle and condensed matter physics are given.
description: 10 pages no figures
Buffalo bulls for meat production: feeding and meat quality
Creators: name: Gonzalez, Oswaldo Josè
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: The general aim of the PhD thesis, realised at the Department of Animal Science and Food Control (University of Napoli, Federico II, Italy), was to study animal performance and the nutritional characteristics of meat from Buffalo bred in Italy (Italian Mediterranean Buffalo) fed different diets. The importance of this research is to give a contribute to better characterize the buffalo infra vitam performance (i.e. weight gain, feed conversion index, etc.) and meat quality (mainly in terms of fatty acids profile). Moreover, the originality of the investigation into the field was the diet composition.
In particular, in the first experimental study the use of a leguminosae (faba bean, Vicia faba minor L.), as protein source in the diet of buffalo, was compared to the soya bean meal. The second investigation refers the results obtained using a nutraceutical additive (Aloe arborescens) in the dairy cow buffalo diets to study the influence on the colostrums quality and buffalo veal performance in the early period of life.
In the first trial it has been demonstrated that feeding growing buffalo with diet without soybean does not affect either in vivo performances (body weight, daily weight gain and biological efficiency of growth, feed conversion index) or nutritional characteristics of meat. This is very interesting, due to the public concerns about genetically modified feed, as large part of soybean nowadays is. The second trial confirmed the influence of good quality colostrums on the calves growth. Indeed, the addition of Aloe arborescens to the mother’s diet during the last period of pregnancy, significantly increased the immunoglobulin content of colostrums. This result, in addition to determine and adequate passive transfer of immunity, very probably also determined the higher growing performances of calves due to the link of IgG to a number of growth and maturation factors able to increase absorption of nutrients from intestine.
Particularly interesting are the results on the fatty acids profile and cholesterol content of buffalo meat. The cholesterol content results lower than those found for the Italian bovine bred specialised for meat production; the contents of myristic, palmitic and stearic acids result significantly lower than those recorded by other authors for young bulls of Chianina bred. To the light of the both high atherogenic and thrombogenic activity of the first two fatty acids and of that only thrombogenic of the stearic acid, we can attribute a favourable judgment to buffalo meat from the dietetic-nutritional point of view. In fact, although the contents of oleic acid and of PUFA of the ω-6 and ω-3 series are not particularly high, both the atherogenicity (AI) and the thrombogenicity (TI) index were very low.
Role of Twist1 transcription factor in thyroid tumor progression
Creators: name: Bencivenga, Tammaro Claudio
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: Thyroid carcinomas are the most common endocrine tumors in humans, with a globally increasing incidence. Differentiated tumors, such as papillary (PTC) and follicular (FTC) thyroid cancers, are often curable with surgical resection and radiotherapy, whereas undifferentiated (anaplastic) thyroid carcinoma (ATC) is invariably lethal, due to the high invasiveness and insensitivity to radioiodine or chemotherapeutic treatment. Little is known about the molecular events that lead from the highly curable differentiated tumors to the very aggressive ATC. Through, a cDNA microarray analysis on different thyroid tumors we have isolated Twist1 as a gene upregulated in ATC. Twist1 is a highly conserved basic helix-loop-helix transcription factor that plays an important role in the development and progression of human cancer. Twist1 has been associated with epithelial-tomesenchymal transition (EMT) a key step during embryonic morphogenesis and in the progression of primary tumors toward metastasis. In this dissertation, we have shown that approximately 50% of ATCs upregulate Twist1 with respect to normal thyroids as well as to poorly- and well-differentiated thyroid carcinomas. Knockdown of Twist1 by RNA interference in ATC cells reduced cell migration and invasion and increased sensitivity to apoptosis. The ectopic expression of Twist1 in thyroid cells induced resistance to apoptosis and increased cell migration and invasion. To understand the molecular mechanisms through which Twist1 exert is biological effects in thyroid cancer cells, we have performed a microarray analysis of thyroid cancer cells ectopically expressing Twist1 in comparison to vector control cells. We have identified a set of 20 genes involved in migration, invasion and apoptosis; expression levels of these genes changed upon Twist1 overexpression or knockdown. Silencing of 5 of the 20 target genes reduced viability of thyroid cancer cells overexpressing Twist1. Thus, our data suggest that Twist1 plays a key role in determining malignant features of the anaplastic phenotype and identifies a set of Twist1 target genes that could be used as molecular target for the therapy of ATC.