cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Anomalous parity asymmetry of the Wilkinson Microwave Anisotropy Probe power spectrum data at low multipoles
Creators: name: Kim, Jaiseung
name: Naselsky, Pavel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have investigated non-Gaussianity of our early Universe by comparing the parity asymmetry of the WMAP power spectrum with simulations. We find that odd-parity preference of the WMAP data (2<= l <=18) is anomalous at 4-in-1000 level. We find it likely that low quadrupole power is part of this parity asymmetry rather than an isolated anomaly. Futher investigation is required to find out whether the origin of this anomaly is cosmological or systematic effect. The data from Planck surveyor, which has systematics distinct from the WMAP, will help us to resolve the origin of the anomalous odd-parity preference.
description: v5: the title updated to match with the ApJL publication
D2.3 Final Results in Directional Links Analysis, and Algorithm Designs
Creators: name: De Renzo, Marco
name: Qian, Xuewen
name: Danufane, Fadil H.
name: Hrasnica, Halid
name: Ntouni, Georgia
name: Kokkoniemi, Joonas
name: Riera, José Manuel
name: Droulias, Sotiris
name: Alexiou, Angeliki
Publisher: name: Zenodo
Year: 2021
Subjects: Beamforming algorithms, directional links, performance analysis, RIS channel estimation, RIS communications, RIS control algorithms.

description: This deliverable brings the final results on directional links' analysis and algorithm design. The results, models, and analysis herein append the results given in the previous deliverable (D2.1) of Task 2.1 of the ARIADNE project. This deliverable reports the models and analysis for practical hardware imperfections, reconfigurable intelligent surface (RIS) gain properties, RIS beamforming algorithms, and performance analysis of RIS-aided links in this deliverable.
Robust stationary entanglement of two coupled qubits in independent environments
Creators: name: Scala, M.
name: Migliore, R.
name: Messina, A.
name: Sanchez-Soto, L. L.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The dissipative dynamics of two interacting qubits coupled to independent reservoirs at nonzero temperatures is investigated, paying special attention to the entanglement evolution. The counter-rotating terms in the qubit-qubit interaction give rise to stationary entanglement, traceable back to the ground state structure. The robustness of this entanglement against thermal noise is thoroughly analyzed, establishing that it can be detected at reasonable experimental temperatures. Some effects linked to a possible reservoir asymmetry are brought to light.
description: 8 pages, 6 figures; version accepted for publication on Eur. Phys. J. D
La città di Bologna e la sua storia: diffusione e condivisione delle conoscenze attraverso Webgis open source e Web Mapping
Creators: name: Paselli, Elisa <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: ING-INF/05 Sistemi di elaborazione delle informazioni

description: To understand a city and its urban structure it is necessary to study its history. 
This is feasible through GIS (Geographical Information Systems) and its by-products on the web. Starting from a cartographic view they allow an initial understanding of,  and a comparison between,  present and past data together with an easy and intuitive access to database information.
The research done led to the creation of a GIS for  the city of Bologna. It is based on varied data such as historical map, vector and alphanumeric historical data, etc..
After providing information about GIS we thought of spreading and sharing the collected data on the Web after studying two solutions available on the market: Web Mapping and WebGIS.
In this study we discuss the stages, beginning with the development of Historical GIS of Bologna, which led to the making of a WebGIS Open Source (MapServer and Chameleon) and the Web Mapping services (Google Earth, Google Maps and OpenLayers).
Counting interesting elections
Creators: name: Pudwell, Lara K.
name: Rowland, Eric S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A15

description: We provide an elementary proof of a formula for the number of northeast lattice paths that lie in a certain region of the plane. Equivalently, this formula counts the lattice points inside the Pitman--Stanley polytope of an n-tuple.
description: 7 pages, 1 figure; published version
Bihamiltonian Structure of the Two-component Kadomtsev-Petviashvili Hierarchy of type B
Creators: name: Wu, Chao-Zhong
name: Xu, Dingdian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We employ a Lax pair representation of the two-component BKP hierarchy and construct its bihamiltonian structure with R-matrix techniques.
description: 20 pages
title: Liquid biopsy in breast cancer: molecular characterization and support to clinical management
Creators: name: Di Cosimo, Serena
Publisher: name: The Open University
Year: 2021

description: The classical paradigm of breast cancer (BC) management has been challenged by recent advances in the understanding of molecular biology, which is increasingly encouraging attempts to move away from protocol-based in favor of a personalized approach. This project aimed to test circulating tumor DNA (ctDNA) and circulating tumor cells (CTCs) to characterize the disease, and monitor patients with BC including both non-invasive and invasive cases. For this purpose, 41 patients with newly diagnosed ductal carcinoma in situ (DCIS), and 61 triple negative BC (TNBC) patients treated with neoadjuvant chemotherapy were analyzed. Primary tumor mutations identified by targeted- gene sequencing were validated, and tracked in 182 plasma samples longitudinally collected at multiple time-points by droplet-digital Polymerase Chain Reaction. In recurrent TNBC patients, plasma DNA underwent direct targeted-gene assay, and CTCs were analyzed for Copy Number Alterations (CNAs). In DCIS patients, ctDNA from baseline samples was evaluable in 71% of cases, with Variant Allele Frequency (VAF) values ranging between 0.001% and 5%, independently of clinico-pathological features, and likewise at initial diagnosis and at relapse. In TNBC patients, the number of primary tumor mutations showed a downward trend after treatment; proficient genes involved in the immune pathways were associated to response; and surgical samples of non responsive cases presented alterations in druggable pathways. ctDNA after treatment was associated with increased risk of relapse, and its prognostic value remained worthy even after adjusting for age, residual disease, systemic inflammatory indices, and Ki-67 (HR 1.91; 95%CI 0.51-7.08). During follow-up, ctDNA was undetectable in non-recurrent cases. Conversely, ctDNA was detected in 83% of recurrent cases, and antedated the clinical diagnosis up to 13 months. Notably, recurrent cases without ctDNA developed loco-regional, contralateral, and bone-only disease. At clinical progression, CTCs presented chromosome 10 and 21q CNAs whose network analysis showed connected modules including HER/PI3K/Ras/JAK signaling, and immune response. These findings extend the value of liquid biopsy to further clinical scenarios by reporting - unlike previous studies - the presence of ctDNA in noninvasive BC; and substantiate the development of ctDNA in invasive BC as an exploitable tool, either alone or with CTCs, for personalized TNBC management.
A New Class of Analytical Solutions Describing Anisotropic Neutron Stars in General Relativity
Creators: name: Solanki, Jay
name: Thakore, Bhashin
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A new class of solutions describing analytical solutions for compact stellar structures has been developed within the tenets of General Relativity. Considering the inherent anisotropy in compact stars, a stable and causal model for realistic anisotropic neutron stars was obtained using the general theory of relativity. Assuming a physically acceptable non-singular form of one metric potential and radial pressure containing the curvature parameter $R$, the constant $k$, and the radius $r$, analytical solutions to Einstein's field equations for anisotropic matter distribution were obtained. Taking the value of $k$ as -0.44, it was found that the proposed model obeys all necessary physical conditions, and it is potentially stable and realistic. The model also exhibits a linear equation of state, which can be applied to describe compact stars.
Casimir-Lifshitz pressure on cavity walls
Creators: name: Romaniega, C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend our previous work on the electromagnetic Casimir-Lifshitz interaction between two bodies when one is contained within the other. We focus on the fluctuation-induced pressure acting on the cavity wall, which is assumed to be spherical. This pressure can be positive or negative depending on the response functions describing the bodies and the medium filling the cavity. However, we find that, under general hypotheses, the sign is independent of the geometry of the configuration. This result is based on the representation of the Casimir-Lifshitz energy in terms of transition operators. In particular, we study the components of these operators related to inside scattering amplitudes, adapting the invariant imbedding procedure to this unfamiliar scattering setup. We find that our main result is in agreement with the Dzyaloshinskii-Lifshitz-Pitaevskii result, which is obtained as a limiting case.
Gravitational collapse of radiation fluid in higher dimensions
Creators: name: Jamil, Mubasher
name: Farooq, Umar
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the problem of the gravitational collapse using higher dimensional Husain spacetime for the null fluid. The equations of state chosen to solve the field equations contain linear, quadratic and arbitrary powers of the radial parameter. The resulting mass evolution is discussed for each case.
description: 13 pages, 6 figures
Tracking the evolution of the accretion flow in MAXI J1820+070 during its hard state with the JED-SAD model
Creators: name: Marino, A.
name: Barnier, S.
name: Petrucci, P. O.
name: Del Santo, M.
name: Malzac, J.
name: Ferreira, J.
name: Marcel, G.
name: Segreto, A.
name: Motta, S. E.
name: D'Aì, A.
name: Di Salvo, T.
name: Guillot, S.
name: Russell, T. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray binaries in outburst typically show two canonical X-ray spectral states, i.e. hard and soft states, in which the physical properties of the accretion flow and of the jet are known to change. Recently, the JED-SAD paradigm has been proposed for black hole X-ray binaries, aimed to address the accretion-ejection interplay in these systems. According to this model, the accretion flow is composed by an outer standard Shakura-Sunyaev disk (SAD) and an inner hot Jet Emitting Disk (JED). The JED produces both the hard X-ray emission, effectively playing the role of the hot corona, and the radio jets. In this paper, we use the JED-SAD model to describe the evolution of the accretion flow in the black hole transient MAXI J1820+070 during its hard and hard-intermediate states. Contrarily to the previous applications of this model, the Compton reflection component has been taken into account. We use eight broadband X-rays spectra, including NuSTAR, NICER and Swift data, providing a total spectral coverage of 0.8-190 keV. The data were directly fitted with the JED-SAD model. Our results suggest that the optically thick disk (i.e. the SAD) does not extend down to the ISCO in any of the considered epochs. In particular, as the system evolves towards the hard/intermediate state, we find that the inner radius decreases from $\sim$60 R$_{\rm G}$ in the first observation down to $\sim$30 R$_{\rm G}$ in the last one. This trend is accompanied by an increase of the mass-accretion rate. In all hard-intermediate state observations, two reflection components, characterized by different values of ionization, are required to adequately explain the data. These components likely originate from different regions of the SAD. We show that a flared outer disk could, in principle, explain the double reflection component.
description: 15 pages, 11 figures. Accepted for publication in A&A
Observational and modelling studies of the Fraser River plume
Creators: name: Stronach, J. A.
Publisher: name: University of British Columbia
Year: 2010

description: The Fraser River plume is the brackish surface layer formed when the Fraser River discharges into the Strait of Georgia. Two approaches to understanding the dynamics of the plume are discussed. Initially, a series of field observations was carried out in the plume. These consisted mainly of CSTD profiles and current profiles in the upper 10-20 meters of the water column. Also, a surface current meter was installed for 34 days at the mouth of the Fraser River. The principal conclusions of the field observations are: the plume is strongly sheared in the vertical and strongly stratified; this vertical structure is most apparent in the vicinity of the river mouth, and around the time of maximum river discharge (near low water in the Strait); and that the water moving outward from the river mouth subsequently acquires velocities and salinities appropriate to the water beneath it with length and time scales for this change of order 50 km and 8 hours. The plume thickness varies between 0 and 10 meters; the salinity varies from 0 to that of the water beneath it (approx. 25 ‰); and the difference between the plume velocity and that of the water beneath it varies from up to 3.5 m/sec to 0 m/sec, and is typically of order 0.5 m/sec over much of the plume area. Inspired by the field data, a model of the thin upper layer was developed. The independent variables are the two components of transport in the upper layer, the thickness of the layer, and the integrated salinity in the upper layer. The bottom of the upper layer has been tentatively defined by an isopycnal surface. The mixing across this interface is modelled by an upward flux of salt water (entrainment), and a downward flux of brackish water (termed depletion in this work). The dynamical effects included in this model are: the local time derivative; the field accelerations; the buoyant spreading pressure gradient (including the effects of salinity on the density field); the entrainment of tidally moving water and the loss by the depletion mechanism of water with the plume momentum; the frictional stress between the plume and the water beneath it; the forcing due to the baroclinic tidal slopes; and the Coriolis force. Subsets of the full model equations are examined, to clarify certain aspects of the plume dynamics. Preliminary results from the numerical solution of the full model eguations are presented, and a comparison is made between the paths of lagrangian trackers produced by the model and drogue tracks observed in the plume. Future improvements to the model are discussed.
Spatio-Temporal Perturbations for Video Attribution
Creators: name: Li, Zhenqiang
name: Wang, Weimin
name: Li, Zuoyue
name: Huang, Yifei
name: Sato, Yoichi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The attribution method provides a direction for interpreting opaque neural networks in a visual way by identifying and visualizing the input regions/pixels that dominate the output of a network. Regarding the attribution method for visually explaining video understanding networks, it is challenging because of the unique spatiotemporal dependencies existing in video inputs and the special 3D convolutional or recurrent structures of video understanding networks. However, most existing attribution methods focus on explaining networks taking a single image as input and a few works specifically devised for video attribution come short of dealing with diversified structures of video understanding networks. In this paper, we investigate a generic perturbation-based attribution method that is compatible with diversified video understanding networks. Besides, we propose a novel regularization term to enhance the method by constraining the smoothness of its attribution results in both spatial and temporal dimensions. In order to assess the effectiveness of different video attribution methods without relying on manual judgement, we introduce reliable objective metrics which are checked by a newly proposed reliability measurement. We verified the effectiveness of our method by both subjective and objective evaluation and comparison with multiple significant attribution methods.
Modulational Instabity of Spin-Orbit Coupled Bose-Einstein Condensates in Discrete Media
Creators: name: Sabari, S.
name: TamilThiruvalluvar, R.
name: Radha, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We address the impact of intra-site spin-orbit (SO) coupling and associated inter-component Rabi coupling on the modulational instability (MI) of plane-wave states in two-component discrete Bose-Einstein condensates (BECs). Conditions for the onset of the MI and the respective instability are found analytically. SO coupling allows us to produce the MI even for a small initial wavenumber (q < π/2) for miscible states. In particular, SO coupling introduces MI even in the absence of hopping coefficient, a concept which may have wider ramifications in heavy atomic BECs. Our investigations predict that the impact of Rabi coupling is more pronounced compared to the other system parameters. We have also shown how our results of the linear stability analysis can be corroborated numerically. The fact that we have brought out the stability criteria in different domains of system parameters means that our model is tailor made experiments.
description: 8 pages, 10 figures
Additional file 1 of Establishment and validation of an RNA binding protein-associated prognostic model for ovarian cancer
Creators: name: He, Chaofan
name: Huang, Fuxin
name: Zhang, Kejia
name: Wei, Jun
name: Hu, Ke
name: Liang, Meng
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1.
A panchromatic study of stellar populations in Galactic Globular Clusters
Creators: name: Dalessandro, Emanuele <1981>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: FIS/05 Astronomia e astrofisica

description: The aim of this Thesis is to investigate (i) how common the bimodal Blue Straggler Stars (BSS)
radial distribution is in stellar clusters and (ii) which are the physical processes that can produce
this bimodality.
We discuss possible relations between the properties of the BSS radial distribution and the
dynamical state of the hosting clusters by making use of dynamical models and simulations.
When relevant, we also discuss the possible links with some
cluster "anomalies" and the effects of a massive object (like Imtermediate Mass Black Hole)
in the cluster center.
To this purpose we present the observational multiwavelength studies of the BSS populations and
their radial distributions in 5 GGCs: M5, M55, M2, NGC 2419 and NGC 6388.
Reformulation of the Hamiltonian constraint of four dimensional gravity for arbitrary values of the Immirzi parameter via the affine group formalism
Creators: name: Ita, Eyo Eyo
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: One of the virtues of the Ashtekar variables is the simplification of the initial value constraints for gravity. In the case of self-dual variables this entails a complexification of the phase space which comes at the expense of having to implement reality conditions in the Lorentzian signature case. A reformulation of the theory in terms of real variables eliminates this difficulty, albeit at the expense of having to deal with a more complicated Hamiltonian constraint. The set of available gravitational theories classically equivalent to Einstein's is parametrized by a parameter $β$, known as the Immirzi parameter. We rephrase the Hamiltonian constraint into the form of an affine Lie algebra for arbitrary $β$, and perform a quantization.
description: 13 pages. Accepted by CQG journal
Velocity dispersion of the brightest cluster galaxies in cosmological simulations
Creators: name: Marini, I.
name: Borgani, S.
name: Saro, A.
name: Granato, G. L.
name: Ragone-Figueroa, C.
name: Sartoris, B.
name: Dolag, K.
name: Murante, G.
name: Ragagnin, A.
name: Wang, Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using the DIANOGA hydrodynamical zoom-in simulation set of galaxy clusters, we analyze the dynamics traced by stars belonging to the Brightest Cluster Galaxies (BCGs) and their surrounding diffuse component, forming the intracluster light (ICL), and compare it to the dynamics traced by dark matter and galaxies identified in the simulations. We compute scaling relations between the BCG and cluster velocity dispersions and their corresponding masses (i.e. $M_\mathrm{BCG}^{\star}$- $σ_\mathrm{BCG}^{\star}$, $M_{200}$- $σ_{200}$, $M_\mathrm{BCG}^{\star}$- $M_{200}$, $σ_\mathrm{BCG}^{\star}$- $σ_{200}$), we find in general a good agreement with observational results. Our simulations also predict $σ_\mathrm{BCG}^{\star}$- $σ_{200}$ relation to not change significantly up to redshift $z=1$, in line with a relatively slow accretion of the BCG stellar mass at late times. We analyze the main features of the velocity dispersion profiles, as traced by stars, dark matter, and galaxies. As a result, we discuss that observed stellar velocity dispersion profiles in the inner cluster regions are in excellent agreement with simulations. We also report that the slopes of the BCG velocity dispersion profile from simulations agree with what is measured in observations, confirming the existence of a robust correlation between the stellar velocity dispersion slope and the cluster velocity dispersion (thus, cluster mass) when the former is computed within $0.1 R_{500}$. Our results demonstrate that simulations can correctly describe the dynamics of BCGs and their surrounding stellar envelope, as determined by the past star-formation and assembly histories of the most massive galaxies of the Universe.
description: 16 pages, 14 figures
Gauge invariant two-point vertices of shadow fields, AdS/CFT, and conformal fields
Creators: name: Metsaev, R. R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the framework of gauge invariant Stueckelberg approach, totally symmetric arbitrary spin shadow fields in flat space-time of dimension greater than or equal to four are studied. Gauge invariant two-point vertices for such shadow fields are obtained. We demonstrate that, in Stueckelberg gauge frame, these gauge invariant vertices become the standard two-point vertices of CFT. Light-cone gauge two-point vertices of the shadow fields are also obtained. AdS/CFT correspondence for the shadow fields and the non-normalizable solutions of free massless totally symmetric arbitrary spin AdS fields is studied. AdS fields are considered in a modified de Donder gauge and this simplifies considerably the study of AdS/CFT correspondence. We demonstrate that the bulk action, when it is evaluated on solution of the Dirichlet problem, leads to the two-point gauge invariant vertex of shadow field. Also we shown that the bulk action evaluated on solution of the Dirichlet problem leads to new description of conformal fields. The new description involves Stueckelberg gauge symmetries and gives simple higher-derivative Lagrangian for the conformal arbitrary spin field. In the Stueckelberg gauge frame, our Lagrangian becomes the standard Lagrangian of conformal field. Light-cone gauge Lagrangian of the arbitrary spin conformal field is also obtained.
description: v3: 31 pages, RevTeX4. Appendix D improved. Typos corrected
Carbon stars : absolute magnitudes and carbon and nitrogen isotope ratios
Creators: name: Olson, Bernt Ingemar
Publisher: name: University of British Columbia
Year: 2010

description: Carbon stars are relatively uncommon, luminous, cool stars whose spectra exhibit exceptionally strong bands of carbon-containing molecules. This is direct evidence of extensive nucleosynthesis, as will occur in the late stages of stellar evolution. The two aspects investigated here are their luminosities and atmospheric carbon and nitrogen isotope ratios. The luminosities are derived through the study of those carbon stars which are members of double star systems. Since the companion star is apparently normal and thus of known luminosity, the carbon star luminosity is directly attainable. Photometry and spectroscopy of suspected binaries yield absolute visual magnitudes for a dozen stars as bright as -4.7, and bolo-metric magnitudes primarily in the range -4 to -8. This means they are slightly mere luminous than normal giants. The isotopic ratios have been deduced by a comparison of synthetic spectra with the observed near infrared stellar spectra. The synthetic spectra were calculated by direct integration of the flux emerging from an appropriate model atmosphere, and contain lines primarily of the Bed band system of the CN molecule. A new analysis technique, used in time series analysis, which is based on the mutual coherence of the spectra being compared and makes full use of the entire spectrum, has been employed. By varying the parameters describing the synthetic spectrum, including the isotopic ratio, the coherence can be maximized and the isotopic ratio of the stellar spectrum deduced. Results for five carbon stars yield ¹²C/¹³C ratios in the range 2.5 to 30. A search was also made for the isotopes ¹⁴C and ¹³N; ¹⁴C was not found, while a tentatively positive result is reported for ¹⁵N.
On gauge theories of mass
Creators: name: Morava, Jack
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 53A30, 83C

description: Mass as broken conformal symmetry: the graviton makes better sense as a Goldstone boson associated to the dilaton, than vice versa. The discussion of the Yamabe problem for the interior Schwarzschild solution [§4.2.4] has been sharpened in this revision.
description: Concluding unscientific postscript & extended disco remix
Incremental Dissipativity based Control of Discrete-Time Nonlinear Systems via the LPV Framework
Creators: name: Koelewijn, Patrick J. W.
name: Tóth, Roland
name: Weiland, Siep
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Unlike for Linear Time-Invariant (LTI) systems, for nonlinear systems, there exists no general framework for systematic convex controller design which incorporates performance shaping. The Linear Parameter-Varying (LPV) framework sought to bridge this gap by extending convex LTI synthesis results such that they could be applied to nonlinear systems. However, recent literature has shown that naive application of the LPV framework can fail to guarantee the desired asymptotic stability guarantees for nonlinear systems. Incremental dissipativity theory has been successfully used in the literature to overcome these issues for Continuous-Time (CT) systems. However, so far no solution has been proposed for output-feedback based incremental control for the Discrete-Time (DT) case. Using recent results on convex analysis of incremental dissipativity for DT nonlinear systems, in this paper, we propose a convex output-feedback controller synthesis method to ensure closed-loop incremental dissipativity of DT nonlinear systems via the LPV framework. The proposed method is applied on a simulation example, demonstrating improved stability and performance properties compared to a standard LPV controller design.
description: Accepted to 60th Conference on Decision and Control, Austin, 2021
Entropic destruction of heavy quarkonium with hyperscaling violation
Creators: name: Li, Ang
name: Zhang, Zi-qiang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the entropic destruction of heavy quarkonium in strongly coupled theories with an anisotropic scaling symmetry in time and spatial direction. We consider Lifshitz and hyperscaling violation theories which are covariant under a generalized Lifshitz scaling symmetry with the dynamical exponent $z$ and hyperscaling violation exponent $θ$. It is shown that the entropic force depends on the parameters of these theories. In particular, increasing $z$ decreases the entropic force thus reducing the quarkonium dissociation, while increasing $θ$ has opposite effect.
description: 7 pages, 3 figures, to be published in Chinese Physics C
Reductive Coupling Synthesis of a Soluble Poly(9,10-anthrylene ethynylene)
Creators: name: Geisler, Isabell
name: Forster, Michael
name: Misimi, Bujamin
name: Schedlbauer, Jakob
name: Riedl, Thomas
name: Lupton, John M.
name: Scherf, Ullrich
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: conjugated polymers - poly(arylene ethynylene)s - reductive coupling - fluorescence anisotropy
subject: 530 Physik

description: A fully soluble poly(9,10-anthrylene ethynylene), poly[2,6-(2-octyldecyl)-9,10-anthrylene ethynylene] PAAE, with moderate degrees of polymerization Pn of ca. 10 is generated in a reductive, dehalogenative homocoupling scheme, starting from a 2,6-dialkylated 9,10-bis(dibromomethylene)-9,10-dihydroanthracene monomer and n-BuLi/CuCN as the reducing agent. PAAE shows surprisingly broad and unstructured absorption and photoluminescence emission bands with peaks at 506 nm and 611 nm, respectively, both in chloroform solution. The long absorption tail ranging into the 600–700 nm region and the large Stokes shift points to a high degree of geometrical disorder in the arrangement of the 9,10-anthrylene chromophores along the distorted polymer backbone. This disorder is borne out in the unusually strong wavelength dependence of fluorescence depolarisation, both with regards to the excitation and the emission wavelengths. Picosecond fluorescence depolarisation spectroscopy provides clear evidence for the presence of orthogonal transition dipole moments, presumably arising from the off-axis transition of the anthracene unit and the on-axis transition of the polymer backbone. Intramolecular energy relaxation then gives rise to the observed fluorescence depolarization dynamics.
REACTIVE EXTRUSION OF BEAN FLOURS
Creators: name: Kimble, Anael K
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 300602
subject: Food chemistry and food sensory science

description: Bean flour possesses a significant fraction of water-insoluble components that are known to limit its uses in food applications. This study aimed to determine if using specific enzymes targeting the dietary fiber of bean flour could increase solubility, release protein and starch, and improve its utilization as a replacement for soy protein isolates in meat analogues. Water solubility, protein solubility, starch content and texture of bean flour was measured after enzymatic treatment with pectin- or hemicellulose-degrading enzymes in aqueous suspension. Low moisture reactive extrusion trials ranged from 60-80% solid content at 2 % enzyme content. High moisture extrusion ranged from 30% solid content from 1.5 to 5% enzyme content and from 40 % solid content at 2% enzyme content. Water solubility and insoluble protein increased with both low and high moisture reactive extrusion. Starch content increased with high moisture reactive extrusion. Beta-glucanase increased starch and insoluble protein content more than polygalacturonase treatments. However, Polygalacturonase and beta-glucanase increased overall water-solubility similarly. Determined starch content decreased with low moisture extrusion and both enzymes behaved equally. In the final set of trials, meat analogues were prepared with wheat gluten in combination with soy protein isolate, bean flour, or a mixture of soy protein isolate and bean flour. Replacing soy protein isolate with bean flour in meat analogues provided comparable hardness and anisotropic index. Polygalacturonase and beta-glucanase treatments during reactive extrusion of bean flours both decreased hardness of bean-containing meat analogues; beta-glucanase decreased the anisotropic index, whereas analogues made from polygalacturonase-treated flour did not differ from the control. Therefore, reactive extrusion showed either negative or null impact on texture. Reactive extrusion with polygalacturonase and beta-glucanase improved some desired analytical targets for bean flours, but the practical application (meat analogue) did not demonstrate an improvement.
HD22496b: the first ESPRESSO standalone planet discovery
Creators: name: Lillo-Box, J.
name: Faria, J. P.
name: Mascareño, A. Suárez
name: Figueira, P.
name: Sousa, S. G.
name: Tabernero, H.
name: Lovis, C.
name: Silva, A. M.
name: Demangeon, O. D. S.
name: Benatti, S.
name: Santos, N. C.
name: Mehner, A.
name: Pepe, F. A.
name: Sozzetti, A.
name: Osorio, M. R. Zapatero
name: Hernández, J. I. González
name: Micela, G.
name: Hojjatpanah, S.
name: Rebolo, R.
name: Cristiani, S.
name: Adibekyan, V.
name: Allart, R.
name: Prieto, C. Allende
name: Cabral, A.
name: Damasso, M.
name: Di Marcantonio, P.
name: Curto, G. Lo
name: Martins, C. J. A. P.
name: Megevand, D.
name: Molaro, P.
name: Nunes, N. J.
name: Pallé, E.
name: Pasquini, L.
name: Poretti, E.
name: Udry, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The ESPRESSO spectrograph is a new powerful tool to detect and characterize extrasolar planets. Its design allows unprecedented radial velocity precision (down to a few tens of cm/s) and long-term thermo-mechanical stability. We present the first standalone detection of an extrasolar planet by blind radial velocity search using ESPRESSO and aim at showing the power of the instrument in characterizing planetary signals at different periodicities in long time spans. We use 41 ESPRESSO measurements of HD\,22496 within a time span of 895 days with a median photon noise of 18 cm/s. A radial velocity analysis is performed to test the presence of planets in the system and to account for the stellar activity of this K5-K7 main sequence star. For benchmarking and comparison, we attempt the detection with 43 archive HARPS measurements and compare the results yielded by the two datasets. We also use four TESS sectors to search for transits. We find radial velocity variations compatible with a close-in planet with an orbital period of $P=5.09071\pm0.00026$ days when simultaneously accounting for the effects of stellar activity at longer time scales ($P_{\rm rot}=34.99^{+0.58}_{-0.53}$ days). We characterize the physical and orbital properties of the planet and find a minimum mass of $5.57^{+0.73}_{-0.68}$ $\mathrm{M}_{\oplus}$, right in the dichotomic regime between rocky and gaseous planets. Although not transiting according to TESS data, if aligned with the stellar spin axis, the absolute mass of the planet must be below 16 $\mathrm{M}_{\oplus}$. We find no significant evidence for additional signals with semi-amplitudes above 56 cm/s at 95% confidence. With a modest set of radial velocity measurements, ESPRESSO is capable of detecting and characterizing low-mass planets and constrain the presence of planets in the habitable zone of K-dwarfs down to the rocky-mass regime.
description: Accepted for publication in A&A. 12 pages, 8 figures, 3 tables
The Logarithmic Sobolev Inequality for Gibbs measures on infinite product of Heisenberg groups
Creators: name: Papageorgiou, Ioannis
Publisher: name: arXiv
Year: 2009
Subjects: subject: Functional Analysis (math.FA)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E15, 26D10

description: We are interested in the $q$ Logarithmic Sobolev inequality for probability measures on the infinite product of Heisenberg groups. We assume that the one site boundary free measure satisfies either a $q$ Log-Sobolev inequality or a U-Bound inequality, and we determine conditions so that the infinite dimensional Gibbs measure satisfies a $q$ Log-Sobolev inequality.
description: 42 pages
title: Lo que el viento se llevó: imágenes que no volveremos a ver en Radiología
Creators: name: Viteri Jusué, Ainhoa
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Education

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
INTRODUCCION: La Radiología es una especialidad médica muy joven y que ha evolucionado rápidamente.
La continua aparición de nuevas técnicas haceque otras caigan en desuso de forma que los residentes que empezamos ahora nuestra formación nunca...
Dimensional Dependence of Weak Localization Corrections and Spin Relaxation in Quantum Wires with Rashba Spin-Orbit Coupling
Creators: name: Wenk, P.
name: Kettemann, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The quantum correction to the conductivity in disordered quantum wires with linear Rashba spin-orbit coupling is obtained. For quantum wires with spin-conserving boundary conditions, we find a crossover from weak anti- to weak localization as the wire width W is reduced using exact diagonalization of the Cooperon equation. This crossover is due to the dimensional dependence of the spin relaxation rate of conduction electrons, which becomes diminished, when the wire width is smaller than the bulk spin precession length $L_{SO}$. We thus confirm previous results for small wire width, $W/L_{SO}<= 1$ [PRL98,176808(2007)], where only the transverse 0-modes of the Cooperon equation had been taken into account. We find that spin helix solutions become stable for arbitrary ratios of linear Rashba and Dresselhaus coupling in narrow wires. For wider wires, the spin relaxation rate is found to be not monotonous as function of wire width: it becomes first enhanced for W on the order of the bulk $L_{SO}$ before it becomes diminished for smaller wire widths. In addition, we find that the spin relaxation is smallest at the edge of the wire for wide wires. The effect of the Zeeman coupling to the magnetic field perpendicular to the 2D electron system is studied and found that it shifts the crossover from weak anti- to weak localization to larger wire widths $W_c$. When the transverse confinement potential of the quantum wire is smooth (adiabatic), the spin relaxation rate is found to be enhanced as W is reduced. We find that only a spin polarized state retains a finite spin relaxation rate in such narrow wires. Thus, we conclude that the injection of polarized spins into nonmagnetic quantum wires should be favorable in wires with smooth confinement potential. Finally, in wires with tubular shape, corresponding to transverse periodic boundary conditions, we find no reduction of the spin relaxation rate.
description: 20 pages, 16 figures
Additional file 1: of Recyclable and Flexible Starch-Ag Networks and Its Application in Joint Sensor
Creators: name: Liu, Sai
name: Chen, Cong
name: Zhang, Dongwei
name: Dong, Guanping
name: Zheng, Dongfeng
name: Jiang, Yue
name: Zhou, Guofu
name: Liu, Jun-Ming
name: Kempa, Krzysztof
name: Gao, Jinwei
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified

description: Figure S1. Images of SAN with different glycerin mass ratio. a) wt5%, b) wt10%, c) wt20%. Figure S2. (a) Photograph of the setup for bending test, which includes mobile station (1), controller of the mobile station (2, 3), voltage transformer (4), (5) Keithley 2400. (b) Schematic diagram of the bending test. Table S1. Comparison of sheet resistance as a recovering of time: original and after transfer. (DOCX 1585 kb)
Stellar and accretion disk parameters of the close binary HD 50526
Creators: name: Rosales, J. A.
name: Mennickent, R. E.
name: Djurašević, G.
name: Schleicher, D. R. G.
name: Zharikov, S.
name: Araya, I.
name: Celedón, L.
name: Curé, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a photometric and spectroscopic study of HD 50526, an ellipsoidal binary member of the group Double Periodic Variable stars. Performing data-mining in photometric surveys and conducting new spectroscopic observations with several spectrographs during 2008 to 2015, we obtained orbital and stellar parameters of the system. The radial velocities were analyzed with the genetic PIKAIA algorithm, whereas Doppler tomography maps for the H$α$ and H$β$ lines were constructed with the Total Variation Minimization code. An optimized simplex-algorithm was used to solve the inverse-problem adjusting the light curve with the best stellar parameters for the system. We find an orbital period of $6.701 \pm 0.001 ~\mathrm{d}$ and a long photometric cycle of $191 \pm 2 ~\mathrm{d}$. We detected the spectral features of the coldest star, and modeled it with a $\log{g} = 2.79 \pm 0.02 ~\mathrm{dex}$ giant of mass $1.13 \pm 0.02 ~\mathrm{M_{\odot}}$ and effective temperature $10500 \pm 125 ~\mathrm{K}$. In addition, we determine a mass ratio $q= 0.206 \pm 0.033$ and that the hot star is a B-type dwarf of mass $5.48 \pm 0.02 ~\mathrm{M_{\odot}}$. The $V$-band orbital light curve can be modeled including the presence of an accretion disk around the hotter star. This fills the Roche lobe of the hotter star, and has a radius $14.74 \pm 0.02 ~\mathrm{R_{\odot}}$ and temperature at the outer edge $9400 ~\mathrm{K}$. Two bright spots located in the disk account for the global morphology of the light curve. The Doppler tomography maps of H$α$ and H$β$, reveal complex structures of mass fluxes in the system.
description: 16 pages with 14 figures
Constraints on Cardassian universe from Gamma ray bursts
Creators: name: Wang, Tai-Shan
name: Liang, Nan
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Constraints on the original Cardassian model and the modified polytropic Cardassian model are examined from the recently derived 42 gamma-ray bursts (GRBs) data calibrated with the method avoiding the circularity problem. The results show that GRBs can be an optional observation to constrain on the Cardassian models. Combining the GRBs data with the newly derived size of baryonic acoustic oscillation peak from the Sloan Digital Sky Survey (SDSS), and the position of first acoustic peak of the Cosmic Microwave Background radiation (CMB) from Wilkinson Microwave Anisotropy Probe (WMAP), we find $Ω_{m0}=0.27_{-0.02}^{+0.02}, n=0.06_{-0.08}^{+0.07}$ ($1σ$) for the original Cardassian model, and $Ω_{m0}=0.27^{+0.03}_{-0.02}$, $n=-0.09_{-1.91}^{+0.23}, β=0.82_{-0.62}^{+2.10}$ ($1σ$) for the modified polytropic Cardassian model.
description: 11 pages, 4 figures, accepted for publication in Science in China G
The string wave function across a Kasner singularity
Creators: name: Copeland, Edmund J.
name: Niz, Gustavo
name: Turok, Neil
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A collision of orbifold planes in eleven dimensions has been proposed as an explanation of the hot big bang. When the two planes are close to each other, the winding membranes become the lightest modes of the theory, and can be effectively described in terms of fundamental strings in a ten dimensional background. Near the brane collision, the eleven-dimensional metric is an Euclidean space times a 1+1-dimensional Milne universe. However, one may expect small perturbations to lead into a more general Kasner background. In this paper we extend the previous classical analysis of winding membranes to Kasner backgrounds, and using the Hamiltonian equations, solve for the wave function of loops with circular symmetry. The evolution across the singularity is regular, and explained in terms of the excitement of higher oscillation modes. We also show there is finite particle production and unitarity is preserved.
description: 28 pages, 10 figures
Fluorescent redox-dependent labeling of lipid droplets in cultured cells by reduced phenazine methosulfate
Creators: name: Stockert, Juan C.
name: Carou, María C.
name: Casas, Adriana G.
name: Vior, María C. García
name: Riega, Sergio D. Ezquerra
name: Blanco, María M.
name: Espada, Jesús
name: Blázquez-Castro, Alfonso
name: Horobin, Richard W.
name: Lombardo, Daniel M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Biological sciences

description: Natural and synthetic phenazines are widely used in biomedical sciences. In dehydrogenase histochemistry, phenazine methosulfate (PMS) is applied as a redox reagent for coupling reduced coenzymes to the reduction of tetrazolium salts into colored formazans. PMS is also currently used for cytotoxicity and viability assays of cell cultures using sulfonated tetrazoliums. Under UV (340 nm) excitation, aqueous solutions of the cationic PMS show green fluorescence (λem: 526 nm), whereas the reduced hydrophobic derivative (methyl-phenazine, MPH) shows blue fluorescence (λem: 465 nm). Under UV (365 nm) excitation, cultured cells (LM2, IGROV-1, BGC-1, and 3T3-L1 adipocytes) treated with PMS (5 ug/mL, 30 min) showed cytoplasmic granules with bright blue fluorescence, which correspond to lipid droplets labeled by the lipophilic methyl-phenazine. After formaldehyde fixation blue-fluorescing droplets could be stained with oil red O. Interestingly, PMS-treated 3T3-L1 adipocytes observed under UV excitation 24 h after labeling showed large lipid droplets with a weak green emission within a diffuse pale blue-fluorescing cytoplasm, whereas a strong green emission was observed in small lipid droplets. This fluorescence change from blue to green indicates that reoxidation of methyl-phenazine to PMS can occur. Regarding cell uptake and labeling mechanisms, QSAR models predict that the hydrophilic PMS is not significantly membrane-permeant, so most PMS reduction is expected to be extracellular and associated with a plasma membrane NAD(P)H reductase. Once formed, the lipophilic and blue-fluorescing methyl-phenazine enters live cells and mainly accumulates in lipid droplets. Overall, the results reported here indicate that PMS is an excellent fluorescent probe to investigate labeling and redox dynamics of lipid droplets in cultured cells.
description: 23 pages, 7 figures, 1 table, publication year 2020