cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-perturbative QCD Effects and the Top Mass at the Tevatron
Creators: name: Wicke, Daniel
name: Skands, Peter Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The modelling of non-perturbative effects is an important part of modern collider physics simulations. In hadron collisions there is some indication that the modelling of the interactions of the beam remnants, the underlying event, may require non-trivial colour reconnection effects to be present. We recently introduced a universally applicable toy model of such reconnections, based on hadronising strings. This model, which has one free parameter, has been implemented in the Pythia event generator. We then considered several parameter sets (`tunes'), constrained by fits to Tevatron minimum-bias data, and determined the sensitivity of a simplified top mass analysis to these effects, in exclusive semi-leptonic top events at the Tevatron. A first attempt at isolating the genuine non-perturbative effects gave an estimate of order +-0.5GeV from non-perturbative uncertainties. The results presented here are an update to the original study and include recent bug fixes of Pythia that influenced the tunings investigated.
description: 8 pages, 5 figures, Submitted to the Proceedings of Top2008, 18-24 May 2008, La Biodola, Isola d'Elba, Italy
Bulk-Boundary Correspondence in a Non-Hermitian Chern Insulator
Creators: name: Takane, Yositake
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A scenario of non-Hermitian bulk--boundary correspondence proposed for one-dimensional topological insulators is adapted to a non-Hermitian Chern insulator to examine its applicability to two-dimensional systems. This scenario employs bulk geometry under a modified periodic boundary condition and boundary geometry under an open boundary condition. The bulk geometry is used to define a topological number, whereas the boundary geometry is used to observe the presence or absence of a topological boundary state. It is demonstrated that the bulk--boundary correspondence holds in a two-dimensional Chern insulator with gain/loss-type non-Hermiticity; a nontrivial Chern number calculated in the bulk geometry is in one-to-one correspondence with the presence of a topological boundary state in the boundary geometry. This approach enables us to determine a phase diagram in the boundary geometry.
description: 5 pages, 12 figures
Quantum theory and the observation problem
Creators: name: Gomatam, Ravi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum theory is applicable, in principle, to both the microscopic and macroscopic realms. It is therefore worthwhile to investigate whether it is possible to evolve a quantum-compatible view of the properties and states of macroscopic objects in everyday thinking. It will allow a realistic interpretation of quantum theory in a manner directly consistent with the observations. The construction of such a view will provide a solution to what I term the observation problem. Toward solving the observation problem, I identify a category of new objective properties called 'relational properties' that are (so to speak) in-between primary and secondary properties. We regularly associate such properties with everyday objects, and I discuss how in fact these are quantum-compatible. If this relational-property viewpoint could be worked into quantum theory, it would altogether avoid the measurement problem, which is an artifact of our current inconsistent (albeit pragmatically successful) strategy of retaining a classical view of the macroscopic world while applying quantum theory to the microscopic world. Some implications of the relational property viewpoint to neurobiological issues underlying cognition are touched upon.
description: 19 pages
Impact of early dark energy on the Planck SZ cluster sample
Creators: name: Waizmann, Jean-Claude
name: Bartelmann, Matthias
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Context. One science goal of the upcoming Planck mission is to perform a full-sky cluster survey based on the Sunyaev-Zel'dovich (SZ) effect, which leads to the question of how such a survey would be affected by cosmological models with a different history of structure formation than LCDM. One class of these models are early dark energy (EDE) cosmologies, where the dark energy contribution does not vanish at early times. Aims. Since structures grow slower in the presence of EDE, one expects an increase in the number of galaxy clusters compared to LCDM at intermediate and high redshifts, which could explain the reported excess of the angular CMB power spectrum on cluster scales via an enhanced SZ contribution. We study the impact of EDE on Planck's expected cluster sample. Methods. To obtain realistic simulations, we constructed full-sky SZ maps for EDE and LCDM cosmologies, taking angular cluster correlation into account. Using these maps, we simulated Planck observations with and without Galactic foregrounds and fed the results into our filter pipeline based on the spherical multi-frequency matched filters. Results. For the case of EDE cosmologies, we clearly find an increase in the detected number of clusters compared to the fiducial LCDM case. This shows that the spherical multi-frequency matched filter is sensitive enough to find deviations from the LCDM sample, being caused by EDE. In addition we find an interesting effect of EDE on the completeness of the cluster sample, such that EDE helps to obtain cleaner samples.
description: 12 pages, 10 figures, accepted for publication in A&A, minor language corrections. Notable changes include an added subsection on collapse parameters for EDE models and a discussion of the consequent SZ power spectra
Additional file 4 of Prevalence and burden of multiple sclerosis-related fatigue: a systematic literature review
Creators: name: Oliva Ramirez, Abril
name: Keenan, Alexander
name: Kalau, Olivia
name: Worthington, Evelyn
name: Cohen, Lucas
name: Singh, Sumeet
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 4: Economic studies reporting fatigue as a linear variable. File includes two tables: 1) Baseline and study characteristics for economic studies reporting fatigue as a linear variable; and 2) Results of economic studies reporting fatigue as a linear variable.
Безопасность и права человека в киберинформационном пространстве
Creators: name: Эльдарович, Зульфугарзаде Теймур
Publisher: name: Zenodo
Year: 2020
Subjects: law

description: В работе исследованы основные особенности конституционного развития, от традиционных подходов создания и внесения изменений под воздействием обычных явлений и перемен в социально-экономической и политической сферах, к новому виду изменений под воздействием на экономику, политику и право инновационных киберинформационных технико-технологических решений, выводящих личность, общество, государство и мировое сообщество в целом на новые уровни восприятия и взаимодействия.
Recintare/Delimitare, un nuovo “materiale” della composizione urbana. [Il tessuto di recinti come proposta di un possibile modo di intervenire sulle aree indefinite della città contemporanea]
Creators: name: Nobile, Maria Luna
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: Il tema di ricerca indaga il ruolo del “recinto” nella città contemporanea. Osservando la città, i suoi vuoti e i suoi percorsi, in particolare le aree periferiche della città contemporanea, è possibile notare come molti dei suoi spazi siano del tutto inaccessibili e chiusi tra “recinti”. La presenza di muri, barriere, delimitazioni, elementi di separazione rendono impossibile la fruizione di alcuni luoghi della città. L’indagine di questa tesi parte dall’osservare intere parti di città caratterizzate dalla presenza di elementi che separano spazi interni dall’esterno, molto spesso con logiche del tutto arbitrarie rispetto agli elementi contenuti. Il motivo dell’interesse nei confronti di questo tema di ricerca è legato alla possibilità di tracciare un metodo di lettura e descrizione per una parte di città a partire da un suo carattere prevalente, in questo caso l’area orientale napoletana e i suoi recinti.
MIMO Multiple Access Channels with Partial Channel State Information
Creators: name: Aubry, Augusto
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: The increasing demand for wireless communication systems has been the starting point for many
research activities and discussions about the best way to make a cleaver usage of the available spectrum
and the available power, in order to satisfy the requirements of the users. In these systems there are
several issues which have to be taken in to account for the evaluation of their Shannon-Capacity, i.e. the
maximum amount of information that can be reliably delivered: the mobility of the users, the presence
of time varying obstacles, power and bandwidth limitations. A lot of efforts have been conducted for
the Information-Theoretic characterization of wireless communication systems with the assumption of
perfect channel state information (CSI) at the receiver side.
In this Thesis an Information-Theoretic analysis of a Gaussian multiple-input multiple-output multiple
access channel (MIMO MAC), with partial channel knowledge at the receiver, is provided. In particular
an inner and an outer bound for the rate region of a MIMO MAC with partial CSI when the inputs
are Gaussian, are derived. Moreover, the behavior of the gaps between the upper and lower bounds of
the mutual information terms, which define the achievable rate region, is analyzed as function of: i) the
number of the users, ii) the number of the receiving antennas, and iii) the signal to noise ratio. The
problem of finding the precodings that attempt to maximize the lower bound to the sum-rate is also
considered. Furthermore, the low-SNR and high-SNR regime for a MIMO MAC with partial CSI at the
receiver are described. For the former, the attention is focused on the minimum energy per bit and on
the multiaccess slope region, while for the latter on the high-SNR slope.
The aforementioned framework turns out to be useful to describe the performance limits of two relevant
scenarios of MAC systems in which only a partial CSI can be used at the receiver: Cooperative MIMO
Networks and Training Based Systems.
The performed analysis shows that the rates achievable over a MIMO MAC channel with partial CSI at
the receiver side can be interpreted in terms of a coherent MIMO MAC channel with an increased noise
level.
Public participation and the preparation of official community plans in British Columbia
Creators: name: Gauld, Don
Publisher: name: University of British Columbia
Year: 2010

description: Public participation in the planning process is a well established concept and an important one to municipal planners as they deal with the question of how to most effectively involve citizens in planning. The purpose of this study is to assess the effectiveness of techniques and processes used to involve the public in a specific planning process: the preparation of official community plans in British Columbia. Two principal methods are used to achieve this purpose: a literature review and a comparative analysis of the experiences of four municipalities located in the greater Vancouver region which have recently completed of official community plans. Data for this analysis came from municipal documents, interviews with planners and field observation. Six process-oriented objectives based on democratic principles are established as criteria of effective public participation. The six criteria are: (1) Accessibility - All citizens have the opportunity and are encouraged to participate; (2) Timing - The public is provided with information and opportunities to participate at crucial decision making points in the planning process. (3) Impartiality - No individual or group is permitted to dominate the participation process at the expense of others; (4) Comprehensibility - Important information is provided and is presented in such a way that it is understood by those whom it affects; (5) Alternatives - The public is presented with a range of alternatives; (6) Efficacy - Participators' views are considered in products of the planning process. The suitability of each participation technique and combination of techniques used in the four municipalities is assessed by these six objectives. Nine summary observations derived from the analysis are presented as suggestions to help planners effectively involve the public in future official community plan processes. It is found that effort to involve citizens in the preparation of an official community plan must go beyond the techniques required or suggested by legislation. A public hearing and an advisory planning commission are not sufficient to provide effective participation. It is not possible to state an ideal public participation program with a set of specific techniques that would be useful in all communities preparing an official community plan. However, by designing and implementing a participation program that strives to satisfy the process-oriented objectives, planners can obtain meaningful response from the public. Achieving these objectives depends foremost on administrative commitment.
A diagrammatic approach to categorification of quantum groups III
Creators: name: Khovanov, Mikhail
name: Lauda, Aaron D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 81R50; 14M15; 17B37; 16W99

description: We categorify the idempotented form of quantum sl(n).
description: 88 pages, LaTeX2e with xypic and pstricks macros, 3 eps files
Observation of a 1/3 Magnetisation Plateau Phase as Evidence for the Kitaev Interaction in a Honeycomb-Lattice Antiferromagnet
Creators: name: Shangguan, Yanyan
name: Bao, Song
name: Dong, Zhao-Yang
name: Xi, Ning
name: Gao, Yi-Peng
name: Ma, Zhen
name: Wang, Wei
name: Qi, Zhongyuan
name: Zhang, Shuai
name: Huang, Zhentao
name: Liao, Junbo
name: Zhao, Xiaoxue
name: Zhang, Bo
name: Cheng, Shufan
name: Xu, Hao
name: Yu, Dehong
name: Mole, Richard A.
name: Murai, Naoki
name: Ohira-Kawamura, Seiko
name: He, Lunhua
name: Hao, Jiazheng
name: Yan, Qing-Bo
name: Song, Fengqi
name: Li, Wei
name: Yu, Shun-Li
name: Li, Jian-Xin
name: Wen, Jinsheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Fractional magnetisation plateaus, in which the magnetisation is pinned at a fraction of its saturated value within a range of external magnetic field, are spectacular macroscopic manifestations of the collective quantum behaviours. One prominent example of the plateau phase is found in spin-1/2 triangular-lattice antiferromagnets featuring strong geometrical frustration, and is often interpreted as quantum-fluctuation-stabilised state in magnetic field via the "order-by-disorder" mechanism. Here, we observe an unprecedented 1/3 magnetisation plateau between 5.2 and 7.4 T at 2 K in a spin-1 antiferromagnet Na$_3$Ni$_2$BiO$_6$ with a honeycomb lattice, where conventionally no geometrical frustration is anticipated. By carrying out elastic neutron scattering measurements, we propose the spin structure of the plateau phase to be an unusual partial spin-flop ferrimagnetic order, transitioning from the zigzag antiferromagnetic order in zero field. Our theoretical calculations show that the plateau phase is stabilised by the bond-anisotropic Kitaev interaction. These results provide a new paradigm for the exploration of rich quantum phases in frustrated magnets and exotic Kitaev physics in high-spin systems.
description: Submitted version, 10 pages, 5 figures. Final version has been published in Nature Physics
The supermassive black hole in NGC4486a detected with SINFONI at the VLT
Creators: name: Nowak, N.
name: Saglia, R. P.
name: Thomas, J.
name: Bender, R.
name: Pannella, M.
name: Gebhardt, K.
name: Davies, R. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The near-infrared integral field spectrograph SINFONI at the ESO VLT opens a new window for the study of central supermassive black holes. With a near-IR spatial resolution similar to HST optical and the ability to penetrate dust it provides the possibility to explore the low-mass end of the M-sigma relation (sigma<120km/s) where so far very few black hole masses were measured with stellar dynamics. With SINFONI we observed the central region of the low-luminosity elliptical galaxy NGC4486a at a spatial resolution of ~0.1arcsec in the K band. The stellar kinematics was measured with a maximum penalised likelihood method considering the region around the CO absorption band heads. We determined a black hole mass of M_BH=1.25^{+0.75}_{-0.79} x 10^7 M_sun (90% C.L.) using the Schwarzschild orbit superposition method including the full 2-dimensional spatial information. This mass agrees with the predictions of the M-sigma relation, strengthening its validity at the lower sigma end.
description: 7 pages, 7 figures. Accepted by MNRAS
Electric field driven controllable motility of metal-dielectric Janus particles with boojum defects in a nematic liquid crystal
Creators: name: Sahu, Dinesh Kumar
name: Dhara, Surajit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In a sharp contrast to the response of silica particles we show that the metal-dielectric Janus particles with boojum defects in a nematic liquid crystal are self-propelled under the action of an electric field applied perpendicular to the director. The particles can be transported along any direction in the plane of the sample by selecting the appropriate orientation of the Janus vector with respect to the director. The direction of motion of the particles is controllable by varying the field amplitude and frequency. The command demonstrated on the motility of the particles is promising for tunable transport and microrobotic applications.
description: 6 pages, 6 figures
The "Fireshell" model in the Swift era
Creators: name: Bianco, Carlo Luciano
name: Ruffini, Remo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We here re-examine the validity of the constant-index power-law relation between the fireshell Lorentz gamma factor and its radial coordinate, usually adopted in the current Gamma-Ray Burst (GRB) literature on the grounds of an "ultrarelativistic" approximation. Such expressions are found to be mathematically correct but only approximately valid in a very limited range of the physical and astrophysical parameters and in an asymptotic regime which is reached only for a very short time, if any.
description: 3 pages, 1 figure, to appear on the Proceedings of the Eleventh Marcel Grossmann Meeting, Berlin (Germany), July 2006
Identification and functional characterization of the G-protein coupled receptor APJ and its ligand apelin in embryonic stem cells: a novel pathway regulating mammalian cardiomyogenesis
Creators: name: D'Aniello, Cristina
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: The commitment of mesodermal precursors to a cardiac fate is one of the first
events in embryogenesis. It results from inductive interactions occurring during
gastrulation in a temporally and spatially regulated manner. Embryonic Stem
Cells (ESCs) are a powerful tool to study the early events of cardiac lineage
specification in mammals; in particular, several cardiac cell populations have
been generated from differentiating ESCs and studies of gene expression
profiles indicate that their development in culture recapitulates cardiogenesis in
the early embryo. Thus, ESCs represent a valid model to elucidate the origin
and the molecular identity of cardiovascular progenitor populations as well as
to identify key regulators of cardiac specification in mammals for which the
molecular control is largely unknown.
Cripto/ALK4/Smad2 signaling is a key pathway required for the correct
cardiac myogenesis, acting in the early phases of ESC differentiation.
Here we report the identification of the Angiotensin II Type ReceptorLike
I
(AGTRL1/
APJ/msr1) and its ligand Apelin as previously unrecognized
downstream targets of Cripto/Smad2 signaling both in vivo and in ESCs.
Gain of function experiments show that APJ suppresses neuronal
differentiation, which spontaneously occurs in cripto/
ESCs,
and restore the
cardiac program, activating the expression of genes pivotal for cardiac
specification and terminal differentiation. Furthermore, lossoffunction
experiments reveal, for the first time to our knowledge, a central role for
APJ/Apelin signaling in the gene regulatory cascade promoting ESC cardiac
specification and differentiation.
Most remarkably, we show that Apelin promotes cardiomyogenesis via
activation of pERK/p70S6 through coupling to a Go/Gi protein. Together our
data point for a previously undescribed functional link between Cripto/Smad2
and APJ/Apelin in the signaling pathways that govern mesoderm patterning
and cardiac specification in mammals.
Finally, to further investigate the role of APJ/Apelin signaling in the control of
ESC differentiation and, in particular, in the specification of cardiovascular
progenitors, we have generated an inducible ESC line, which allow
overexpression of APJ in a timespecific
manner, by using the tetracycline
(Tet)regulated
transactivator system. Our data reveal that APJ overexpression,
in an early time window of wildtype
ESC differentiation, promotes the
expression of markers of the cardiovascular lineage and markedly increases the
number of cardiomyocytes.
Additional file 1 of Semen parameters in men recovered from COVID-19: a systematic review and meta-analysis
Creators: name: Tiwari, Sagar
name: KC, Niranjan
name: Thapa, Sajan
name: Ghimire, Anuja
name: Bijukchhe, Sanjeev
name: Sah, Guru Sharan
name: Isnuwardana, Ronny
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Supplementary Table 1. Risk of bias assessment of included studies.
Additional file 1 of Differences in circulating fatty acid-binding protein 4 concentration in the venous and capillary blood immediately after acute exercise
Creators: name: Numao, Shigeharu
name: Uchida, Ryota
name: Kurosaki, Takashi
name: Nakagaichi, Masaki
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Statistics
subject: FOS: Mathematics
subject: Hematology

description: Additional file 1.
Direct observation of topological magnon polarons in a multiferroic material
Creators: name: Bao, Song
name: Gu, Zhao-Long
name: Shangguan, Yanyan
name: Huang, Zhentao
name: Liao, Junbo
name: Zhao, Xiaoxue
name: Zhang, Bo
name: Dong, Zhao-Yang
name: Wang, Wei
name: Kajimoto, Ryoichi
name: Nakamura, Mitsutaka
name: Fennell, Tom
name: Yu, Shun-Li
name: Li, Jian-Xin
name: Wen, Jinsheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe$_{2}$Mo$_{3}$O$_{8}$ possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations.
description: 11 pages, 5 figures, published in Nature Communications
Additional file 2 of Semen parameters in men recovered from COVID-19: a systematic review and meta-analysis
Creators: name: Tiwari, Sagar
name: KC, Niranjan
name: Thapa, Sajan
name: Ghimire, Anuja
name: Bijukchhe, Sanjeev
name: Sah, Guru Sharan
name: Isnuwardana, Ronny
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplementary Fig. 1. Funnel plot for pooling of semen volume. Supplementary Fig. 2. Funnel plot for pooling of sperm concentration. Supplementary Fig. 3. Funnel plot for total sperm number. Supplementary Fig. 4. Funnel plot for progressive sperm motility. Supplementary Fig. 5. Funnel plot for sperm motility. Supplementary Fig. 6. Funnel plot for Follicle stimulating hormone. Supplementary Fig. 7. Funnel plot for Luteinizing hormone. Supplementary Fig. 8. Funnel plot for Testosterone.
ZTFJ0038+2030: a long period eclipsing white dwarf and a substellar companion
Creators: name: van Roestel, Jan
name: Kupfer, Thomas
name: Bell, Keaton J.
name: Burdge, Kevin
name: Mróz, Przemek
name: Prince, Thomas A.
name: Bellm, Eric C.
name: Drake, Andrew
name: Dekany, Richard
name: Mahabal, Ashish A.
name: Porter, Michael
name: Riddle, Reed
name: Shin, Kyung Min
name: Shupe, David L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In a search for eclipsing white dwarfs using the Zwicky Transient Facility lightcurves, we identified a deep eclipsing white dwarf with a dark, substellar companion. The lack of an infrared excess and an orbital period of 10 hours made this a potential exoplanet candidate. We obtained high-speed photometry and radial velocity measurements to characterize the system. The white dwarf has a mass of $0.50\pm0.02\,\mathrm{M_{\odot}}$ and a temperature of $10900\pm200\,$K. The companion has a mass of $0.059\pm0.004\,\mathrm{M_{\odot}}$ and a small radius of $0.0783\pm0.0013\,\mathrm{R_{\odot}}$. It is one of the smallest transiting brown dwarfs known and likely old, $\gtrsim 8\,$Gyr. The ZTF discovery efficiency of substellar objects transiting white dwarfs is limited by the number of epochs and as ZTF continues to collect data we expect to find more of these systems. This will allow us to measure period and mass distributions and allows us to understand the formation channels of white dwarfs with substellar companions.
description: submitted, comments welcome
Elastic properties of transition metal dioxides: XO$_{2}$(X=Ru, Rh, Os, Ir)
Creators: name: Li, Yanling
name: Zeng, Zhi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The elastic properties of rutile transition metal dioxides XO$_{2}$ (X=Ru, Rh, Os, and Ir) are investigated using first-principles calculations based on density functional theory. Elastic constants, bulk modulus, shear modulus, and Young's modulus as well as Possion ratio are given. OsO$_2$ and IrO$_2$ show strong incompressibility. The hardness estimated for these dioxides shows that they are not superhard solids. The obtained Debye temperatures are comparative to those of transition metal dinitrides or diborides.
description: 14pages,2 figures,4 tables. To be published in Int. J. Mod. Phys. C
Misurare il contesto a partire da un centro. Moltiplicazione delle soglie tra interno ed esterno.
Creators: name: Di Iorio, Marina
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: La ricerca vuole inserirsi nello scenario della città contemporanea vista come una ‘foresta’ in cui avventurarsi senza perdersi, ma affrontandone la complessità per svelarne i meccanismi e le ragioni. Una città che non è più assimilabile ad un testo, come la città tradizionale con le sue stratificazioni, le sue memorie e le sue permanenze, ma ad un ipertesto, ossia ad una rete i cui ‘documenti’ ne costituiscono i nodi. E tra le molteplici letture dell’ipertesto si vuole partire dalla lettura dei nodi, assimilati alle grandi ‘masse’ dismesse disperse nel territorio, punti strategici che divengono in alcuni casi entità dinamiche,  ‘centri’, in grado di provocare continue variazioni nel contesto  innescando in questo modo una rigenerazione del tessuto urbano.
La ricerca affronta, dunque, una duplice questione: comprendere da un lato come individuare e, attraverso il progetto, trasformare queste grandi masse dismesse in centri strategici, ridando loro un senso e dall’altro ipotizzare, attraverso la progettazione di spazi aperti e percorsi, una interrelazione tra i diversi centri all’interno della rete.
Ripercorrendo sinteticamente il dibattito relativo al fenomeno della dismissione e la conseguente questione della centralità, l’attenzione si focalizza su due scenari in particolare: Il Borough di Southwark a Londra e l’area orientale a Napoli. La rigenerazione della Bankside Power station a Londra nell’attuale Tate Modern diviene riferimento per portare avanti la sperimentazione sul complesso del gasometro a Napoli. Una riflessione sulle architettura sospese che, come nodi della rete, diventano le protagoniste del racconto di tesi attraverso un percorso che dalla scala architettonica si allarga alla scala urbana (scale che nel processo progettuale vanno tenute insieme contemporaneamente).
Экономическое положение и социально-демографические особенности сельских абхазов
Creators: name: А.Н., Ямсков
Publisher: name: Zenodo
Year: 2008
Subjects: абхазы
сельское население
социально-профессиональная структура
приусадебное хозяйство

description: На основе полевых материалов начала-середины 2000-х гг. анализируется то, насколько в постсоветский период изменились социально-профессиональный состав и структура занятости сельских абхазов, их приусадебное хозяйство и основные источники средств существования, важнейшие социально-демографические характеристики абхазских селений (доля домохозяйств пенсионеров, доля хозяйств с полными семьями с детьми, доля заброшенных после войны 1992-1993 гг. хозяйств).
Additional file 1 of Relationship between resting 12-lead electrocardiogram and all-cause death in patients without structural heart disease: Shinken Database analysis
Creators: name: Hirota, Naomi
name: Suzuki, Shinya
name: Arita, Takuto
name: Naoharu Yagi
name: Otsuka, Takayuki
name: Kishi, Mikio
name: Semba, Hiroaki
name: Kano, Hiroto
name: Matsuno, Shunsuke
name: Kato, Yuko
name: Tokuhisa Uejima
name: Oikawa, Yuji
name: Matsuhama, Minoru
name: Iida, Mitsuru
name: Inoue, Tatsuya
name: Yajima, Junji
name: Yamashita, Takeshi
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Plant Biology

description: Additional file 1: Table S1. The full list of 438 ECG parameters analyzed by univariate logistic regression analysis. Table S2. The permutation importance of the 109 ECG parameters for all-cause death. Table S3. The permutation importance of the 109 ECG parameters for cardiovascular death. Table S4. The c-statistics of the predictive models for all-cause and cardiovascular death by support vector machine.
Measurements and modelisation of shadowing cross-correlations between two base-stations
Creators: name: Zayana, Karim
name: Guisnet, Bertrand
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Measurements in macrodiversity situations have been performed. Crosscorrelation of shadowing terms between two basestations and a mobile have been computed. It results that high cross-correlation coefficients may appear in practice. Afterwards, we propose a simple shadowing model, integrating both its autocorrelation and cross-correlation properties. Eventually, this model is used to compute simulations in some typical network cases.
Effective-medium theory for infinite-contrast, 2D-periodic, linear composites with strongly anisotropic matrix behavior: dilute limit and cross-over behavior
Creators: name: Willot, Francois
name: Pellegrini, Yves-Patrick
name: Idiart, Martin I.
name: Castaneda, Pedro Ponte
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The overall behavior of a 2D lattice of voids embedded in an anisotropic matrix is investigated in the limit of vanishing porosity f. An effective-medium model (of the Hashin-Shtrikman type) which accounts for elastic interactions between neighboring voids, is compared to Fast Fourier Transform numerical solutions and, in the limits of infinite anisotropy, to exact results. A cross-over between regular and singular dilute regimes is found, driven by a characteristic length which depends on f and on the anisotropy strength. The singular regime, where the leading dilute correction to the elastic moduli is an O(f^{1/2}), is related to strain localization and to change in character - from elliptic to hyperbolic - of the governing equations.
description: 17 pages, 7 low-res figures, 4 low-res tables of figures. Table II in BW to minimize submission size (color version from YPP on request)
Additional file 1 of Changes in opioid-related deaths following increased access to opioid substitution treatment
Creators: name: Andersson, Lisa
name: Håkansson, Anders
name: Berge, Jonas
name: Johnson, Björn
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Supplementary Table 1. Population aged 18–65 in Skåne in total and in communities with increased or unchanged access to OST in the second data period.
Physics of collisionless reconnection in a stressed X-point collapse
Creators: name: Tsiklauri, D.
name: Haruki, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Recently, magnetic reconnection during collisionless, stressed, X-point collapse was studied using kinetic, 2.5D, fully electromagnetic, relativistic Particle-in-Cell numerical code [D. Tsiklauri and T. Haruki, Phys. Plasmas, 14, 112905 (2007)]. Here we finalise the investigation of this topic by addressing key outstanding physical questions. It has been established here that: (i) reconnection out-of-plane electric field at the magnetic null is generated by the electron pressure tensor off-diagonal terms, resembling to the case of tearing unstable Harris current sheet studied by the GEM reconnection challenge; (ii) For m_i / m_e >> 1 the time evolution of the reconnected flux is independent of ion-electron mass ratio; also, in the case of m_i / m_e = 1 we show that reconnection proceeds slowly as the Hall term is zero; when m_i / m_e >> 1 (i.e. the Hall term is non-zero) reconnection is fast and we conjecture that this is due to magnetic field being frozen into electron fluid, which moves significantly faster than ion fluid; (iii) within one Alfven time, somewhat less than half (40%) of the initial total (roughly magnetic) energy is converted into the kinetic energy of electrons, and somewhat more than half (60%) into kinetic energy of ions (similar to solar flare observations); (iv) in the strongly stressed X-point case, in about one Alfven time, a full isotropy in all three spatial directions of the velocity distribution is seen for super-thermal electrons (also commensurate to solar flare observations).
description: Final version, accepted for publication in Physics of Plasmas
Nel laboratorio di Angelo di Costanzo: edizione critica dell’Istorie della sua patria (ms. BNN X.C.5) e analisi dei rapporti tra le varie stesure dell’opera
Creators: name: Cifani, Daniela
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Angelo di Costanzo dedicò l'intera vita alla stesura dell'Historia. In questa tesi si è cercato di ricostruire le varie fasi del lavoro dello scrittore, con particolare attenzione ad una prima stesura dell'opera, testimoniata da un manoscritto presente presso la Biblioteca Nazionale di Napoli, il ms X.C.5, di cui si è fornita un'edizione critica. Tale manoscritto, non autografo, risulta particolarmente interessante perché contiene chiose di diverse mani che commentano il testo. Una di queste mani è da identificare con il di Costanzo. Questo lavoro ha cercato di ricostruire le tappe che hanno segnato il passaggio dal rifacimento dei Diurnali di Matteo Spinelli (tale rifacimento è testimoniato dal manoscritto 695 presso la biblioteca Casanatense di Roma, autografo del di Costanzo) alla stesura di un'opera originale (il ms X.C.5) e dal manoscritto X.C.5 all'Historia in 20 libri data alle stampe nel 1582 presso la tipografia Cacchio.
Constraints on heavy decaying dark matter with current gamma-ray measurements
Creators: name: Chianese, Marco
name: Fiorillo, Damiano F. G.
name: Hajjar, Rasmi
name: Miele, Gennaro
name: Saviano, Ninetta
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: Among the several strategies for indirect searches of dark matter, one very promising one is to look for the gamma-rays from decaying dark matter. Here we use the most up-to-date upper bounds on the gamma-ray flux from $10^5$ to $10^{11}$ GeV, obtained from CASA-MIA, KASCADE, KASCADE-Grande, Pierre Auger Observatory, and Telescope Array. We obtain global limits on dark matter lifetime in the range of masses $m_\mathrm{DM}=[10^7-10^{15}]~\mathrm{GeV}$. We provide the bounds for a set of decay channels chosen as representatives. The constraints derived here are new and cover a region of the parameter space not yet explored. We compare our results with the projected constraints from future neutrino telescopes, in order to quantify the improvement that will be obtained by the complementary high-energy neutrino searches.
description: 8 pages, 5 figures
A Self Supervised StyleGAN for Image Annotation and Classification with Extremely Limited Labels
Creators: name: Hochberg, Dana Cohen
name: Greenspan, Hayit
name: Giryes, Raja
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: J.3; I.5.3
subject: 92C55

description: The recent success of learning-based algorithms can be greatly attributed to the immense amount of annotated data used for training. Yet, many datasets lack annotations due to the high costs associated with labeling, resulting in degraded performances of deep learning methods. Self-supervised learning is frequently adopted to mitigate the reliance on massive labeled datasets since it exploits unlabeled data to learn relevant feature representations. In this work, we propose SS-StyleGAN, a self-supervised approach for image annotation and classification suitable for extremely small annotated datasets. This novel framework adds self-supervision to the StyleGAN architecture by integrating an encoder that learns the embedding to the StyleGAN latent space, which is well-known for its disentangled properties. The learned latent space enables the smart selection of representatives from the data to be labeled for improved classification performance. We show that the proposed method attains strong classification results using small labeled datasets of sizes 50 and even 10. We demonstrate the superiority of our approach for the tasks of COVID-19 and liver tumor pathology identification.
description: Accepted to IEEE Transactions on Medical Imaging
Additional file 1 of A comprehensive genome-wide scan detects genomic regions related to local adaptation and climate resilience in Mediterranean domestic sheep
Creators: name: Tsartsianidou, Valentina
name: Sánchez-Molano, Enrique
name: Kapsona, Vanessa Varvara
name: Basdagianni, Zoitsa
name: Chatziplis, Dimitrios
name: Arsenos, Georgios
name: Triantafyllidis, Alexandros
name: Banos, Georgios
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Correlation heatmap between different measures of inbreeding coefficient. The respective coefficients are: SNP-based genomic inbreeding (F), whole-genome ROH-based inbreeding (FROH), and FROH by the respective size classes (ROH segment length) 2 to 4 Mb (FROH2_4), 4 to 8 Mb (FROH4_8), 8 to 16 Mb (FROH8_16), >16 Mb (FROH16).
On the construction of Nadel multiplier ideal sheaves and the limiting behavior of the Ricci flow
Creators: name: Rubinstein, Yanir A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32Q20; 14J45, 32L10, 32W20, 53C25, 58E11

description: In this note we construct Nadel multiplier ideal sheaves using the Ricci flow on Fano manifolds. This extends a result of Phong, Sesum and Sturm. These sheaves, like their counterparts constructed by Nadel for the continuity method, can be used to obtain an existence criterion for Kahler-Einstein metrics.
description: v2: 1. added details for the case n=1. 2. added some references. v3: minor changes. To appear in Transactions of the American Mathematical Society
GenoPhenoEnvo Governance and Operations Manual
Creators: name: Munoz-Torres, Monica C
name: Bartelme, Ryan P
name: Behrisch, Michael
name: Cain, Emily J
name: Chang, Remco
name: Debnath, Ishita
name: Heidorn, Bryan
name: Jaiswal, Pankaj
name: LeBauer, David S
name: Mosca, Ab
name: Ross, Arun
name: Swetnam, Tyson L
name: Thessen, Anne
Publisher: name: Zenodo
Year: 2020
Subjects: governance, genomics, phenotypes, environment

description: This Governance and Operations Manual (GOM) defines standard operating procedures and various policies created to clarify, support, and further the goals of the Genomics, Phenotypes, and Environment (GenoPhenoEnvo) Research Team.
Studio del trasporto di un tracciante anionico alla scala di pieno campo: metodologia sperimentale ed interpretazione dei risultati mediante modelli convettivo-dispersivi e stocastico-convettivi
Creators: name: Comegna, Alessandro
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2006

description: [ITALIANO] In questo lavoro si analizza una applicazione del classico modello Convettivo-Dispersivo (CD), del modello (MIM) e del modello Stocastico-Convettivo non meccanicistico (CLT) di Jury (1982) utilizzando le distribuzioni di s(z,t) di soluto conservativo (Cl-) misurate in pieno campo alla scala 40x7x1 m3, in un suolo sabbioso insaturo (Andosuolo) morfologicamente omogeneo sino alla profondità di 1 m, localizzato in tenimento di Ponticelli (NA). È stato osservato che nell’epipedon del suddetto suolo, si instaura un regime del trasporto caratterizzato da un regime pre-Fickiano con modesti mixing laterali che non è stato possibile descrivere con il modello CD. Anche se il modello MIM, che compartimentalizza la fase liquida nei domini mobile-immobile, ha consentito di ridurre le discrepanze tra distribuzioni osservate e simulate la sua complessità non risulta giustificata visto che i parametri ottenuti per ottimizzazione risultano tra loro correlati. Eccellente risulta invece l’accordo tra distribuzioni misurate e simulate con il modello funzione di trasferimento CLT che può essere assunto come modello candidato per una descrizione sufficientemente precisa del trasporto alle scale spaziali e temporali che sono proprie dell’esperimento di Ponticelli. / [ENGLISH] Non reactive solute concentration (Cl-) and water content profiles were intensively measured within an area of 40x7 m2 to a depth of 1.0 m in an unsaturated sandy Andosoil located in Poticelli close to Naples. Convective-dispersive model CD, mobile-immobile model MIM and stochastic convective model CLT of Jury (1982), were employed to simulate transport under unsaturated condition. The results suggest that transport processes in our experiments have not fully developed to the Fickian regime at water content less than max. Because the classical CD equation does not adequately describe the movement of solutes under pre-Fickian regime, MIM model was employed to reproduce the BTC obtained unsaturated condition. Although the MIM model adequately reproduce the BTC observed, the MIM model parameters are obtained by optimization, and unique solution may not be obtained because of the parameters are often correlated. CLT model, which assumes logarithmic distribution of the water velocity, gives adequate prediction of solute displacement in the soil epipedon until z=0.90 m.
Theoretical interpretation of "long" and "short" GRBs
Creators: name: Bianco, Carlo Luciano
name: Bernardini, Maria Grazia
name: Caito, Letizia
name: Chardonnet, Pascal
name: Dainotti, Maria Giovanna
name: Fraschetti, Federico
name: Guida, Roberto
name: Ruffini, Remo
name: Xue, She-Sheng
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Within the "fireshell" model we define a "canonical GRB" light curve with two sharply different components: the Proper-GRB (P-GRB), emitted when the optically thick fireshell of electron-positron plasma originating the phenomenon reaches transparency, and the afterglow, emitted due to the collision between the remaining optically thin fireshell and the CircumBurst Medium (CBM). We here present the consequences of such a scenario on the theoretical interpretation of the nature of "long" and "short" GRBs.
description: 3 pages, 1 figure, to appear on the Proceedings of the Eleventh Marcel Grossmann Meeting, Berlin (Germany), July 2006