cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Analytical representation of the Local Field Correction of the Uniform Electron Gas within the Effective Static Approximation
Creators: name: Dornheim, Tobias
name: Moldabekov, Zhandos A.
name: Tolias, Panagiotis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The description of electronic exchange--correlation effects is of paramount importance for many applications in physics, chemistry, and beyond. In a recent Letter, Dornheim \textit{et al.} [\textit{Phys. Rev. Lett.}~\textbf{125}, 235001 (2020)] have presented the \emph{effective static approximation} (ESA) to the local field correction (LFC), which allows for the highly accurate estimation of electronic properties such as the interaction energy and the static structure factor. In the present work, we give an analytical parametrization of the LFC within ESA that is valid for any wave number, and available for the entire range of densities ($0.7\leq r_s \leq20$) and temperatures ($0\leq θ\leq 4$) that are relevant for applications both in the ground state and in the warm dense matter regime. A short implementation in Python is provided, which can easily be incorporated into existing codes. In addition, we present an extensive analysis of the performance of ESA regarding the estimation of various quantities like the dynamic structure factor, static dielectric function, the electronically screened ion-potential, and also stopping power in electronic medium. In summary, we find that the ESA gives an excellent description of all these quantities in the warm dense matter regime, and only becomes inaccurate when the electrons start to form a strongly correlated electron liquid ($r_s\sim20$). Moreover, we note that the exact incorporation of exact asymptotic limits often leads to a superior accuracy compared to the neural-net representation of the static LFC [\textit{J.~Chem.~Phys.}~\textbf{151}, 194104 (2019)].
Symbolic Software for the Painleve Test of Nonlinear Ordinary and Partial Differential Equations
Creators: name: Baldwin, Douglas
name: Hereman, Willy
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The automation of the traditional Painleve test in Mathematica is discussed. The package PainleveTest.m allows for the testing of polynomial systems of ordinary and partial differential equations which may be parameterized by arbitrary functions (or constants). Except where limited by memory, there is no restriction on the number of independent or dependent variables. The package is quite robust in determining all the possible dominant behaviors of the Laurent series solutions of the differential equation. The omission of valid dominant behaviors is a common problem in many implementations of the Painleve test, and these omissions often lead to erroneous results. Finally, our package is compared with the other available implementations of the Painleve test.
description: Published in the Journal of Nonlinear Mathematical Physics (http://www.sm.luth.se/math/JNMP/), vol. 13(1), pp. 90-110 (Feb. 2006). The software can be downloaded at either http://www.douglasbaldwin.com or http://www.mines.edu/fs_home/whereman
Ultrafast charge dynamics and photoluminescence in bilayer MoS2
Creators: name: Din, Naseem Ud
name: Turkowski, Volodymyr
name: Rahman, Talat S
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Our examination of the interplay of ultrafast charge dynamics and electron-phonon interaction in bilayer MoS2 provides a microscopic basis for understanding the features (two peaks) in the emission spectrum. We demonstrate that while the initial accumulation of excited charge occurs at and near the Q point of the two-dimensional Brillioun zone, emission takes place predominantly through two pathways: direct charge recombination at the K point and indirect phonon-assisted recombination of electrons at the K valley and holes at Γ hill of the Brillouin zone. Analysis of the wave vector dependencies of the electron-phonon interaction traces the higher energy peak to phonon-assisted relaxation of the excited electrons from the Q to the K valley in the conduction band. Our results thus reveal the importance of ultrafast charge dynamics in understanding photoemissive properties of a few-layer transition-metal dichalcogenide. These calculations are based on time dependent density functional theory in the density matrix formulation.
The Application of Quality Function Deployment for Environment (QFDE) to Design Vertical Lifting Devices in the Healthcare Industry
Creators: name: Kittipong Sangbuddee
Publisher: name: Faculty of Engineeing Naresuan University
Year: 2021
Subjects: Quality Function Deployment for Environment (QFDE)
Vertical lifting devices, Voice of Customer (VOC)

description: ์Naresuan University Engineering Journal, 16, 2, 1-10
title: Long-term effects of neighborhood environments on low-income families: a summary of results from the Moving to Opportunity experiment (LIEPP Working Paper, n°04)
Creators: name: Papenfort, Ludwig Jens
Publisher: name: Sciences Po - LIEPP
Year: 2012
Subjects: subject: FOS: Social sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: Residential segregation of America’s neighborhoods by income has been increasing over the past 40 years, with nearly 9 million people now living in census tracts with poverty rates of 40 percent or more (Watson, 2009, Kneebone, Nadeau, and Berube, 2011). Because housing policy affects the geographic concentration of poverty in a variety of ways, policymakers have long been concerned about the possibility that living in a distressed neighborhood could have some harmful effects on the life outcomes of adults and children. The list of plausible reasons why neighborhood poverty might adversely affect people’s well-being and behavior is long and includes limited exposure to peers and role models who support pro-social behaviors such as schooling and work, neighbors who are willing and able to cooperate and work together to improve community life, high-quality local public institutions such as schools, police, health care and housing, and elevated exposure to risk factors like pollution or crime (...).
INSIGHT ON THE THEROPOD FAUNA FROM THE UBERABA FORMATION (BAURU GROUP), MINAS GERAIS STATE: NEW MEGARAPTORAN SPECIMEN FROM THE LATE CRETACEOUS OF BRAZIL
Creators: name: G. MARTINELLI, AGUSTÍN
name: CARLOS BORGES RIBEIRO, LUIZ
name: H. MÉNDEZ, ARIEL
name: MACEDO NETO, FRANCISCO
name: LOURENCINI CAVELLANI, CAMILA
name: FELIX, EDUARDO
name: LÚCIA DA FONSECA FERRAZ, MARA
name: DE PAULA ANTUNES TEIXEIRA, VICENTE
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: Uberaba Formation; Megaraptora; Caudal Vertebra; Pneumaticity

description: The first bony theropod record from the Campanian Uberaba Formation (Bauru Group) is described. It consists of an isolated caudal centrum (CPPLIP 1324) found in the city of Uberaba, Minas Gerais State, Brazil. The amphicoelous centrum possesses a length to height ratio of 1.74, deep elliptical lateral pneumatic foramen representing 26% of centrum length with three main sub-circular air chambers, andcamellate internal structure.This combination of features is shared with Aerosteon, Megaraptor, and Orkoraptor from the Late Cretaceous of Argentinaand with the Megaraptora indet. fromthe São José do Rio Preto Formation (Bauru Group), São Paulo State,allowing us to refer it to the Megaraptora clade (Tetanurae, Neovenatoridae). As such, the new specimen represents the second megaraptoran from the Late Cretaceous of Brazil and provides new information on tail anatomy on this bizarre group.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 119, No 2
Detection of the hard X-ray non-thermal emission from Kepler's supernova remnant
Creators: name: Nagayoshi, Tsutomu
name: Bamba, Aya
name: Katsuda, Satoru
name: Terada, Yukikatsu
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the first robust detection of the hard X-ray emission in the 15--30\,keV band from Kepler's supernova remnant with the silicon PIN-type semiconductor detector of the hard X-ray detector (HXD-PIN) onboard Suzaku. The detection significance is 7.17 $σ$ for the emission from Kepler's entire X-ray emitting region. The energy spectrum is found to be well reproduced by a single power-law function with a photon index of $3.13^{+1.85+0.69}_{-1.52-0.36}$, where the first and second errors represent 90\%-statistical and systematic errors, respectively. The X-ray flux is determined to be 2.75$_{-0.77-0.82}^{+0.78+0.81}\times10^{-12}$\,erg\,s$^{-1}$\,cm$^{-2}$ in the 15--30\,keV band. The wider-band X-ray spectrum in the 3--30\,keV band, where the soft X-ray Suzaku/XIS spectrum is combined, shows that the non-thermal component does not have a significant X-ray roll-off structure. We find that the broad-band energy spectrum from the radio band, X-ray data of this work, and TeV upper limits can be reproduced with the one-zone leptonic model with a roll-off energy of $ν_{\mathrm{roll}}=1.0\times10^{17}$\,Hz and magnetic field strength of $B>40\,\mathrm{μG}$. Application of the diagnostic method using indices in the soft and hard X-ray band to the data indicates that the maximum energy of the accelerated electrons in Kepler's SNR is limited by the age of the remnant. The indication is consistent with the results of the one-zone leptonic modeling.
description: 11 pages, 7 figures, 4 tables, accepted for publication in PASJ
Smearing origin of zero-bias conductance peak in Ag-SiO-Bi-2212 planar tunnel junctions: influence of diffusive normal metal verified with the circuit theory
Creators: name: Shigeta, Iduru
name: Tanaka, Yukio
name: Ichikawa, Fusao
name: Asano, Yasuhiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose a new approach of smearing origins of a zero-bias conductance peak (ZBCP) in high-Tc superconductor tunnel junctions through the analysis based on the circuit theory for a d-wave pairing symmetry. The circuit theory has been recently developed from conventional superconductors to unconventional superconductors. The ZBCP frequently appears in line shapes for this theory, in which the total resistance was constructed by taking account of the effects between a d-wave superconductor and a diffusive normal metal (DN) at a junction interface, including the midgap Andreev resonant states (MARS), the coherent Andreev reflection (CAR) and the proximity effect. Therefore, we have analyzed experimental spectra with the ZBCP of Ag-SiO-Bi-2212 planar tunnel junctions for the {110}-oriented direction by using a simplified formula of the circuit theory for d-wave superconductors. The fitting results reveal that the spectral features of the ZBCP are well explained by the circuit theory not only excluding the Dynes's broadening factor but also considering only the MARS and the DN resistance. Thus, the ZBCP behaviors are understood to be consistent with those of recent studies on the circuit theory extended to the systems containing d-wave superconductor tunnel junctions.
description: 9 pages, 9 figures, 1 table
title: Architecture of commercial galleries as an attempt to create "more attractive reality"
Creators: name: Kasińska-Andruszkiewicz, Agnieszka
Publisher: name: Publishing House of Poznan University of Technology
Year: 2021

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura wnętrz, 7, 225-232
BIOSTRATIGRAPHY AND REGIONAL ASPECTS OF THE TARBUR FORMATION (MAASTRICHTIAN) IN CENTRAL ZAGROS, SOUTHWEST IRAN
Creators: name: ASGARI PIRBALUTI, BORZU
name: MIRZAIE ATAABADI, MAJID
name: ALI DJAFARIAN, MOHAMMAD
name: KHOSROW TEHRANI, KHOSROW
name: AFGHAH, MASIH
name: DAVOUDI FARD, ZOHREH
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: Cretaceous; Maastrichtian; Biostratigraphy; Tarbur Formation; Zagros; Iran

description: The aim of this study is to investigate the biostratigraphy and regional stratigraphy of the Maastrichtian deposits (Tarbur Formation) in the high outreaches of the Zagros Mountains in Chahar Mahal and Bakhtiyari Province, southwest Iran. The thickness of the investigated sequences is about 600 m in Tang-e-Vanak, 156 m inTang-e-Zendan,and 111 m in Kuh-e-Dozdaran sections. Shale and marls of the Gurpi Fm. (Campanian) mark the lower lithostratigraphic limit of the Tarbur Fm. in Kuh-e-Dozdaran section, whereas its upper limit is disconformably distinguished by the dolomitic Jahrom Fm. (Eocene). The Tarbur Fm. in Tang-e-Vanak andTang-e-Zendansections overlies the clastic Amiran Fm. (Maastrichtian) and is truncated with a sharp disconformity by the white dolomites of Shahbazan Fm. (Eocene). Biostratigraphically, the Tarbur Fm. is characterized by a Loftusia-Omphalocyclus assemblage zone, indicating a Maastrichtian age. Within this biozone, three regional subbiozones are proposed. They are: the Loftusia arabica range subzone , the Loftusia persica interval subzone , and the Loftusia baykali interval subzone . Based on the foraminiferal content, the age of the Tarbur Fm. in Kuh-e-Dozdaran section is assigned to the lower-middle parts of the Maastrichtian. Likewise, the Tarbur Fm. in Tang-e-Vanak and theTang-e-Zendansections is Maastrichtian in age, possibly extending locally into the Paleocene.
The identification of the biostratigraphic limits of the Tarbur Fm. in the studied areas assists the reconstruction of the sedimentary basin in the Late Cretaceous.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 119, No 2
Effects of Natural Carbon Sources and Temperature on Mycelium Cultivations of Lentinus squarrosulus (Mont.), Lentinus polychrous Lev., Pleurotus ostreatus (Jacq.ex Fr.) P. Kumm. and Volvariella volvacea (Bull.) Singer
Creators: name: Chanida Kupradit
Publisher: name: Thammasat University
Year: 2020
Subjects: mushroom
mycelium cultivation
potato
sweet potato
taro

description: Thai Journal of Science and Technology, 9, 4, 539-553
FVSS: The Fornax Cluster VLT Spectroscopic Survey
Creators: name: Spiniello, Chiara
Publisher: name: Zenodo
Year: 2019

description: The Cold-Dark Matter scenario predict that as the Universe cooled, clumps of dark matter (DM) began to condense, and within them gas began to collapse, forming the first galaxies which then experienced structure growth via the so-called "merging tree".
 During this growth, various physical processes (e.g tidal interactions, ram pressure stripping, gas accretion) contributed to shape galaxies and the DM surrounding them. These processes are expected to have left their imprints in the outskirts of galaxies and beyond, out to the intracluster regions. Here, dynamical times are longer and galaxy formation mechanisms leave signatures of gravitational interactions like shells or tidal tales in the kinematics of their components or in the chemical composition of the stars.
 Measuring kinematics in the outer parts of Early-Type Galaxies (ETGs) remains however very complicated since the signal-to-noise of the integrated light spectra drops off before the mass profile flattens.
 Planetary Nebulae (PNe) represent a unique tool to describe the kinematics of elusive stars in low surface brightness regions where they are easily observable through their [OIII] emission at 5007 Å. Measuring kinematics of Intracluster PNs (ICPNe) is the most effective, if not the only, way to measure the dynamical
 stage of the ICL, and to assess how and when its light originated.

 In this talk, I will present the largest and most extended planetary nebulae (PNe) catalog even obtained for the Fornax cluster. We measured velocities of 1452 PNe in a radius of about 200 kpc in the core of the Fornax cluster using a counter-dispersed slitless spectroscopic technique with data from FORS2 on the VLT. From the PNs velocity map we identify stellar streams that are possibly tracing the gravitational interaction of the central galaxy NGC 1399 with NGC 1404 and NGC 1387.
 We also measured the velocity dispersion profile out to large radii, confirming that indeed we are able to trace the transition from the halo of the central galaxy into the cluster potential.
 This PNe catalog is part of a large effort to gather as many data as possible on the internal region of the Fornax Cluster in synergy with the Fornax Deep Survey that acquired uniform imaging coverage with VST (ugri) and VISTA (J and K).
 This unprecedented big dataset allow us to constrain the baryonic and dark mass distribution in the core of Fornax with high precision, thus shedding light on the assembly history of massive galaxies in one of the most nearby dense environments.
THE SMALL MAMMALS (INSECTIVORES, BATS AND RODENTS) FROM THE HOLOCENE ARCHAEOLOGICAL SITE OF VALLONE INFERNO (SCILLATO, LOWER IMERA VALLEY, NORTHWESTERN SICILY)
Creators: name: MANUEL LÓPEZ-GARCÍA, JUAN
name: BLAIN, HUGUES-ALEXANDRE
name: PAGANO, ENRICO
name: OLLÉ, ANDREU
name: MARIA VERGÈS, JOSEP
name: FORGIA, VINCENZA
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: Micromammals; biostratigraphy; palaeogeography; palaeoenvrionment; palaeoclimate; Middle Neolithic-Early Bronze Age; Late Roman-Byzantine period

description: The Vallone Inferno rock-shelter is an archeological site located at 770 m a.s.l. in the Madonie massif in Sicily. This massif is modeled into the Triassic and Oligocene sedimentary rocks of the Imerese Basin. Thearchaeological excavations conducted since 2008 have provided a long prehistoric and historic sequence from the Neolithic to the medieval period. From the four sedimentary complexes identified, only levels 3.4 to 3.1 from complex 3 and 4.2 from complex 4 have yielded small-mammal material. Level 4.2 is poor in remains and as yet without cultural ascription, though it has a radiocarbon age of 9450±50 years BP. Level 3.4 has yielded fragments of ceramic characteristic of the Middle Neolithic-Bronze Age period, with a radiocarbon age between 3948±35 and3244±42 years BP. Levels 3.3 to 3.1 have provided ceramic fragments ascribed to the Late Roman-Byzantine period, with a radiocarbon age between1332±26 and 1260±34 years BP.The small-mammal assemblages recovered from the sieving-washing of all the sediment from the excavation campaigns include a total of at least 14 taxa (three insectivores, four chiropterans and seven rodents). The materials from this locality provide the first mention in the fossil record of Sicily for Suncus etruscus, Muscardinus avellanarius, Eliomys quercinus and Rattus norvegicus, as well as the last occurrence for Arvicola amphibius. The scarcity of the remains recovered from stratigraphic levels 3.1, 3.2, 3.3 and 4.2 makes it difficult to undertake a palaeoenvironmental and palaeoclimatical interpretation of them. However, the richness in small mammal contents from level 3.4 allow us to show that this level is dominated by dry meadows and woodland areas with a temperature and precipitation range that lies within the current values for the surrounding area, coinciding with the dry and temperate phase detected previously by marine surveys and pollen and microcharcoal studies.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 119, No 2
ASTRAELENIA SAOMAMEDENSIS  N. SP. - A NEW GIGANTIC RHYNCHONELLID SPECIES AND ITS PALAEOBIOGEOGRAPHICAL IMPLICATIONS FOR THE PORTALEGRE SYNCLINE (CENTRAL PORTUGAL)
Creators: name: SCHEMM-GREGORY, MENA
name: M. PIÇARRA, JOSÉ
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: Astraelenia; Rhynchonellida; Brachiopoda; Stratigraphy; Palaeobiogeology; Palaeoecology; Stratigraphy; Lower Devonian; Portugal

description: A new species of Astraelenia is described from ?Siegenian to Emsian strata of the Portalegre Syncline (Central Portugal). Astraelenia saomamedensis n. sp. differs in a smaller number of costae, a rather inconspicuous fold and sulcus, and larger and elongate shells from other species of Astraelenia. Astraelenia occurs today in northern Africa, Central and Western Europe; the new species shows Gondwanan origin according to faunal elements found in the stratigraphic vicinity. The migration of Astraelenia is described considering Lower Devonian regional transgression and regression events. The new species is found in monospecific clusters and an attempt for understanding its palaeoecology is presented.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 119, No 3
Quasi-uniform in plane magnetization state of thin cylindrical dots in a square array and related anisotropy
Creators: name: Metlov, Konstantin L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The energy (magnetostatic, exchange and Zeeman terms) of a square array of cylindrical sub-micron dots made of soft ferromagnetic material is calculated analytically and minimized, taking into account quasi-uniformity of dots magnetization. The dependence of the equilibrium energy of the array on the direction of the externally applied magnetic field in the array plane is recovered, exhibiting the four-fold anisotropy. The anisotropy constant is calculated. Its values for different array geometries are in excellent agreement to the recent independent experiments. New eight-fold anisotropy effect is predicted. Theory involves no adjustable parameters.
description: v3: polished introduction at the request of reviewers, added an illustrative figure, otherwise no changes
title: Edge-Computing im Projekt EuProGigant
Creators: name: Weber, Markus
name: Brockhaus, Benjamin
name: Dumss, Stefan
name: Brinkhaus, Jan
name: Brunnbauer, Melissa
name: Pfadenhauer, Konrad
name: Kirsten, Werner
name: Bleicher, Friedrich
name: Schwaiger, Clemens
name: Dehnert, Torsten
name: Erstling, Jürgen
name: Getschmann, Achim
name: Grafinger, Manfred
name: Henrich, Verena
name: Weigold, Matthias
Publisher: name: UNSPECIFIED
Year: 2021

description: Im Rahmen des österreichisch-deutschen Leitprojekts für Gaia-X in der produzierenden Industrie namens EuProGigant wird eine gemeinsame Dateninfrastruktur nach den Prinzipien von Gaia-X für das Wertschöpfungsökosystem konzipiert und umgesetzt. Das Ziel des Projekts ist die Demonstration und Skalierung eines standortübergreifenden, digital vernetzten Produktionsökosystems mit resilienter, datengetriebener und nachhaltiger Wertschöpfung zur Stärkung der europäischen Vorreiterrolle in der Industrie. Der Fokus im Projekt liegt auf der Anbindung diverser Maschinen und Anlagen unabhängig von Herstellern und Software- bzw. Firmwareständen der Steuerungskomponenten. Neben Anforderungen an eine gemeinsame Dateninfrastruktur hinsichtlich IT-security, Safety, Zuverlässigkeit,Schnittstellenkonfiguration zur Interoperabilität und ein funktionierendes Update-Management sind die Anforderungen zu integrierender digitaler Funktionen (Services) heterogener Herkunft zu nennen, welche in der Gaia-X Architektur über die Federation Services aus dem Daten-Ökosystem bezogen werden. Hohes Potenzial zur Umsetzung von industriellen Anwendungsfällen besteht in der Nutzung von Daten aus Produktionsprozessen. Insbesondere die hochfrequente, zeitsynchrone Datenerfassung und -verarbeitung mittels Services im Edge-Computing auf dem Shop Floor wird als Treiber für digitale datengetriebene Geschäftsmodelle in der Beschreibung von Datenwertschöpfungsketten gesehen. Das White Paper legt die begriffliche Basis für das Edge-Computing im Projekt EuProGigant und soll über das Projekt hinaus das Verständnis für die vielfältige Nutzung von Edge-Systemen in der Produktion im Zusammenhang mit Gaia-X schärfen.
NEW DATA ON MIDDLE DEVONIAN CONODONTS FROM SW-SARDINIA:THE SU NUARGI II SECTION REVISITED
Creators: name: GOUWY, SOFIE
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: Conodonts; Middle Devonian; SW- Sardinia; biostratigraphy; Su Nuargi II; Corti Baccas II

description: The conodont collection from the nodular limestone beds of the Su Nuargi II outcrop near Domusnovas in SW-Sardinia (Italy) is restudied for the purpose of reassessing the outcrop and updating the conodont collection to the most recent taxonomy. Su Nuargi II is the most important outcrop in the SW of the island exposing Middle Devonian rocks. Forty-five conodont taxa have been identified in the collection, positioning the outcrop within the interval covering the timorensis to latifossatus zones (Lower to Middle Givetian) slightly widening the interpretation of Olivieri (1985). A new morphotype of Polygnathus linguiformis linguiformis is described. The genera Tortodus and Schmidtognathus are identified for the first time in the Middle Devonian of Sardinia. Additionally, a second Middle Devonian outcrop is discovered in the SW of the Island.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 119, No 3
Investigation of the effective interactions for the Emery model by the constrained random-phase approximation and constrained functional renormalization group
Creators: name: Han, Xing-Jie
name: Werner, Philipp
name: Honerkamp, Carsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effective interaction of downfolded low-energy models for electrons in solids can be obtained by integrating out the high energy bands away from the target band near the Fermi level. Here, we apply the constrained random-phase approximation (cRPA) and constrained functional renormalization group (cfRG), which can go beyond cRPA by including all one-loop diagrams, to calculate and compare the effective interactions of the three-band Emery model, which is often used to investigate cuprate high-temperature superconductors. At half band filling, we find that the effective interaction increases as the charge transfer energy ($Δ_{dp}$) increases and similar behavior is obtained as a function of the interatomic 2$p$-3$d$ interaction ($U_{dp}$). However, the effective interaction is more sensitive to $Δ_{dp}$ than $ U_{dp}$. For most of the parameter sets, the effective static interaction is overscreened in cRPA compared to cfRG. The low-energy models at half-filling are solved within dynamical mean-field theory (DMFT). The results show that despite the different static interactions, the systems with cRPA and cfRG interaction exhibit a Mott transition at similar values of $Δ_{dp}$. We also investigate the effective interaction as a function of doping. The cfRG effective interaction decreases as the electron number increases and displays a trend opposite to that of cRPA. Antiscreening is observed for the hole-doped case. For all the cases studied, the near-cancellation of the direct particle-hole channel is observed. This indicates that at least for the downfolding of the onsite interaction terms, methods beyond cRPA may be required.
description: 12 pages, 8 figures
On WL-rank and WL-dimension of some Deza circulant graphs
Creators: name: Bildanov, Ravil
name: Panshin, Viktor
name: Ryabov, Grigory
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C25, 05C60, 05C75

description: The WL-rank of a digraph $Γ$ is defined to be the rank of the coherent configuration of $Γ$. The WL-dimension of $Γ$ is defined to be the smallest positive integer $m$ for which $Γ$ is identified by the $m$-dimensional Weisfeiler-Leman algorithm. We classify the Deza circulant graphs of WL-rank $4$. In additional, it is proved that each of these graphs has WL-dimension at most $3$. Finally, we establish that some families of Deza circulant graphs have WL-rank $5$ or $6$ and WL-dimension at most $3$.
description: 21 pages
A high-performance and portable asymptotic preserving radiation hydrodynamics code with the M1 model
Creators: name: Bloch, H.
name: Tremblin, P.
name: González, M.
name: Padioleau, T.
name: Audit, E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims. We present a new radiation hydrodynamics code, called "ARK-RT" which uses a two-moment model with the M1 closure relation for radiative transfer. This code aims at being ready for high-performance computing, on exascale architectures. Methods. The two-moment model is solved using a finite volume scheme. The scheme is asymptotic preserving to capture accurately both optically thick and thin regimes. We also propose a well-balanced discretization of the radiative flux source term able to capture constant flux steady states with discontinuities in opacity. We use the library Trilinos for linear algebra and the package Kokkos allows us to reach high-performance computing and portability across different architectures, such as multi-core, many-core, and GP-GPU. Results. ARK-RT is able to reproduce standard tests in both free-streaming and diffusive limits, including purely radiative tests and radiation hydrodynamics ones. Using a time-implicit solver is profitable as soon as the time step given by the hydrodynamics is 50-100 times larger than the explicit time step for radiative transfer, depending on the preconditioner and the architecture. Albeit more work is needed to ensure stability in all circumstances. Using ARK-RT, we study the propagation of an ionization front in convective dense cores. We show that the ionization front is strongly stable against perturbations even with destabilizing convective motions. As a result, the presence of instabilities should be interpreted with caution. Overall, ARK-RT is well-suited to study many astrophysical problems involving convection and radiative transfer such as the dynamics of H ii regions in massive pre-stellar dense cores and future applications could include planetary atmospheres.
AstroSat-CZTI as a hard X-ray Pulsar Monitor
Creators: name: Anusree, K. G.
name: Bhattacharya, D.
name: Rao, A. R.
name: Vadawale, S.
name: Bhalerao, V.
name: Vibhute, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Cadmium Zinc Telluride Imager (CZTI) is an imaging instrument onboard AstroSat. This instrument operates as a nearly open all-sky detector above ~60 keV, making possible long integrations irrespective of the spacecraft pointing. We present a technique based on the AstroSat-CZTI data to explore the hard X-ray characteristics of the $γ$-ray pulsar population. We report highly significant ($\sim 30σ$) detection of hard X-ray (60--380 keV) pulse profile of the Crab pulsar using $\sim$5000 ks of CZTI observations within 5 to 70 degrees of Crab position in the sky, using a custom algorithm developed by us. Using Crab as our test source, we estimate the off-axis sensitivity of the instrument and establish AstroSat-CZTI as a prospective tool in investigating hard X-ray characteristics of $γ$-ray pulsars as faint as 10 mCrab.
description: Accepted for publication in the Journal of Astrophysics and Astronomy, 8 pages, 3 figures, 3 tables
A three-valued semantics for logic programmers
Creators: name: Naish, Lee
Publisher: name: arXiv
Year: 2005
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.3.1; F.3.2

description: This paper describes a simpler way for programmers to reason about the correctness of their code. The study of semantics of logic programs has shown strong links between the model theoretic semantics (truth and falsity of atoms in the programmer's interpretation of a program), procedural semantics (for example, SLD resolution) and fixpoint semantics (which is useful for program analysis and alternative execution mechanisms). Most of this work assumes that intended interpretations are two-valued: a ground atom is true (and should succeed according to the procedural semantics) or false (and should not succeed). In reality, intended interpretations are less precise. Programmers consider that some atoms "should not occur" or are "ill-typed" or "inadmissible". Programmers don't know and don't care whether such atoms succeed. In this paper we propose a three-valued semantics for (essentially) pure Prolog programs with (ground) negation as failure which reflects this. The semantics of Fitting is similar but only associates the third truth value with non-termination. We provide tools to reason about correctness of programs without the need for unnatural precision or undue restrictions on programming style. As well as theoretical results, we provide a programmer-oriented synopsis. This work has come out of work on declarative debugging, where it has been recognised that inadmissible calls are important. This paper has been accepted to appear in Theory and Practice of Logic Programming.
description: 31 pages, 5 figures
A NEW PERLEIDID FROM THE SPATHIAN (OLENEKIAN, EARLY TRIASSIC) OF CHAOHU, ANHUI PROVINCE, CHINA
Creators: name: SUN, ZUOYU
name: TINTORI, ANDREA
name: JIANG, DAYONG
name: MOTANI, RYOSUKE
Publisher: name: Università degli Studi di Milano
Year: 2013
Subjects: New taxon; Perleidiformes; Early Triassic; Spathian; South China

description: A new actinopterygian genus and species, Chaohuperleidus  primus gen. n. n. sp., is described from the Upper Member of the Nanlinghu Formation (Spathian, Olenekian, Early Triassic) at Majiashan (Majia Hill), Chaohu City, Anhui Province, Southeast China. The new taxon is assigned to the order Perleidiformes on the base of a combination of features: large wedge-like preoperculum with expanded infraorbital process and sensory canal running almost vertical along the posterior margin of the preoperculum itself, flank scalessomewhat higher than longer in the trunk region and presence of epaxial rays in the caudal fin.AmongPerleidiformes, the new taxonbelongsto thePerleididae, being very similar to Perleidus in the general body shape, pattern of the skull bones, the dentitionmade of peg-like marginal teeth,and number of epaxial rays. The new genus is characterized by the presence of a very large antero-dorsal process on the suboperculum, a high number (about 55) of transversal scale rows and dorsal and anal fin quite posterior. Chaohuperleidus gen. n., beingSpathianin age,represents the oldest record of the order Perleidiformes.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 119, No 3
Elicitation of verb paradigms from unpublished Goddard material
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-241019-07: Verb paradigm elicitation based on unpublished material transcribed by P.E. Goddard (Bancroft Library CU-23.1 12.14.1, file 2184-12 (4).pdf).
Magnetized Non-linear Thin Shell Instability: Numerical Studies in 2D
Creators: name: Heitsch, F.
name: Slyz, A. D.
name: Devriendt, J. E. G.
name: Hartmann, L.
name: Burkert, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We revisit the analysis of the Non-linear Thin Shell Instability (NTSI) numerically, including magnetic fields. The magnetic tension force is expected to work against the main driver of the NTSI -- namely transverse momentum transport. However, depending on the field strength and orientation, the instability may grow. For fields aligned with the inflow, we find that the NTSI is suppressed only when the Alfvén speed surpasses the (supersonic) velocities generated along the collision interface. Even for fields perpendicular to the inflow, which are the most effective at preventing the NTSI from developing, internal structures form within the expanding slab interface, probably leading to fragmentation in the presence of self-gravity or thermal instabilities. High Reynolds numbers result in local turbulence within the perturbed slab, which in turn triggers reconnection and dissipation of the excess magnetic flux. We find that when the magnetic field is initially aligned with the flow, there exists a (weak) correlation between field strength and gas density. However, for transverse fields, this correlation essentially vanishes. In light of these results, our general conclusion is that instabilities are unlikely to be erased unless the magnetic energy in clouds is much larger than the turbulent energy. Finally, while our study is motivated by the scenario of molecular cloud formation in colliding flows, our results span a larger range of applicability, from supernovae shells to colliding stellar winds.
description: 12 pages, 17 figures, some of them at low resolution. Submitted to ApJ, comments welcome
Effect of Mechanical Stimulation on Growth and Salicylic Acid Accumulation of Hom Thammasat Rice Seedling
Creators: name: Dusit Athinuwat
Publisher: name: Thammasat University
Year: 2020
Subjects: Hom Thammasat rice
seedling
plant immune
mechanical stimulation
touch

description: Thai Journal of Science and Technology, 9, 4, 554-563
Vortex--Phonon Interaction
Creators: name: Kozik, Evgeny
name: Svistunov, Boris
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Kelvin waves (kelvons)--helical waves on quantized vortex lines--are the normal modes of vortices in a superfluid. At zero temperature, the only dissipative channel of vortex dynamics is phonon emission. Starting with the hydrodynamic action, we derive the Hamiltonian of vortex-phonon interaction, thereby reducing the problem of the interaction of Kelvin waves with sound to inelastic elementary excitation scattering. On the basis of this formalism, we calculate the rate of sound radiation by superfluid turbulence at zero temperature and estimate the value of short-wavelength cutoff of the turbulence spectrum.
description: 4 pages, RevTex, a remark regarding elastic and inelastic phonon scattering is added, to be published in PRB
Modelling brain lesion volume in patches with CNN-based Poisson Regression
Creators: name: Raina, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Monitoring the progression of lesions is important for clinical response. Summary statistics such as lesion volume are objective and easy to interpret, which can help clinicians assess lesion growth or decay. CNNs are commonly used in medical image segmentation for their ability to produce useful features within large contexts and their associated efficient iterative patch-based training. Many CNN architectures require hundreds of thousands parameters to yield a good segmentation. In this work, an efficient, computationally inexpensive CNN is implemented to estimate the number of lesion voxels in a predefined patch size from magnetic resonance (MR) images. The output of the CNN is interpreted as the conditional Poisson parameter over the patch, allowing standard mini-batch gradient descent to be employed. The ISLES2015 (SISS) data is used to train and evaluate the model, which by estimating lesion volume from raw features, accurately identified the lesion image with the larger lesion volume for 86% of paired sample patches. An argument for the development and use of estimating lesion volumes to also aid in model selection for segmentation is made.
Mothers’ views of the role of nursing respite in managing the stress and coping related to the home care of their children with medically fragile or complex conditions
Creators: name: Valkenier, Beverley June
Publisher: name: University of British Columbia
Year: 2009

description: This study used grounded theory to elicit mothers' views of the role of nursing respite in managing their stress and coping with children who are being cared for at home with medically fragile or complex health conditions. Respite services are required to provide families (in this case mothers) with a break from the condition, its management, and caregiving. This research was part of a larger quantitative and qualitative study designed to evaluate British Columbia's Nursing Respite Program through exploration of families' responses to beginning and continuing to receive pediatric respite care at home. This research used a subset of data from 10 families to discover theory related to the process of adapting to respite—from mothers' perspectives. Data collection involved in-depth unstructured interviews and observations in the families' homes at three set time periods: prior to the commencement of nursing respite and six and 12 months during the delivery of services. Data were coded from transcribed interviews and field notes and the constant comparative method of data collection and analysis. Mothers' experiences of caring for their special children and adjusting to respite were conceptualized as evolving through a four-stage social process of Learning to Manage the System: Taking In; Losing Control; Taking Charge; and Manage Effectively within the Constraints of Inflexible Rules. Influencing factors included whether services were in place at the time of their children's initial discharge from hospital, and the presence of significant degrees of uncertainty. Mothers simultaneously moved through four phases in their relationships with the health care professionals: Blindly Trusting, Becoming Enlightened, Seeking Effective Collegial Relationships and Establishing a Working Relationship. This report includes implications for ways nursing practice can be refocused to facilitate mothers' coping, to decrease uncertainty, and to foster stronger, more effectively relationships with families. Areas of further study are identified and implications for nursing education are discussed. This research generates knowledge about mothers' perceptions of the demands of caring for children with very special needs at home and the impact of in-home professional services, and provides direction for improvement of care by nurses, other professionals, and policy makers.
Low energy theorems and the unitarity bounds in the extra U(1) superstring inspired E6 models
Creators: name: Sharma, N. K.
name: Saxena, Pranav
name: Parashar, Prachi
name: Nagawat, Ashok K.
name: Singh, Sardar
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The conventional method using low energy theorems [3] does not seem to lead to an explicit unitarity limit in the scattering processes of longitudinally polarized gauge bosons for the high energy case in the extra U(1) superstring inspired models, commonly known as eta model, emanating from E6 group of superstring theory. We have made use of an alternative procedure given in [14], which is applicable to SUSY GUT. Explicit unitarity bounds on the Yukawa couplings are obtained from both using unitarity constraints as well as using RGE analysis at one-loop level utilizing critical couplings concepts implying divergence of scalar coupling at MG. These are found to be consistent with finiteness over the entire range MZ<=sqrt(s)<=MG. For completeness, the similar approach has been made use of in other models, i.e., chi, psi, and nu models emanating from E6 and it has been noticed that at weak scale, the unitarity bounds on Yukawa couplings do not differ among E6 extra U(1) models significantly except for the case of chi model in 16 representations. Theoretically we have obtained the upper bounds on top quark and lightest neutral higgs boson mass using the unitarity constrained superpotential couplings and also obtained the D-quark mass as a function of MZ2 is O(3 TeV) for MZ2 is O(1 TeV). The obtained bounds on these physical parameters are found consistent with the present day experimental precision measurements.
description: 57 Pages, 13 Tables, 7 Figs.; PACS: 12.10.Dm, 12.60.Cn; http://link.aps.org/abstract/PRD/v72/e095016
Observational Constraints on the Role of the Crust in the Post-glitch Relaxation
Creators: name: Jahan-Miri, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The observed large rates of spinning down after glitches in some radio pulsars have been previously explained in terms of a long-term spin-up behavior of a superfluid part of the crust of neutron stars. We argue that the suggested mechanism is not viable; being inconsistent with the basic requirements for a superfluid spin-up, in addition to its quantitative disagreement with the data. Hence, the observed post-glitch relaxations may not be interpreted due only to the effects of the stellar crust.
description: To be published in New Astronomy
Symmetries of the near horizon of a Black Hole by Group Theoretic methods
Creators: name: Maharana, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use group theoretic methods to obtain the extended Lie point symmetries of the quantum dynamics of a scalar particle probing the near horizon structure of a black hole. Symmetries of the classical equations of motion for a charged particle in the field of an inverse square potential and a monopole, in the presence of certain model magnetic fields and potentials are also studied. Our analysis gives the generators and Lie algebras generating the inherent symmetries.
description: To appear in Int. J. Mod. Phys. A
The Hubble Constant from Infrared Surface Brightness Fluctuation Distances
Creators: name: Blakeslee, John P.
name: Jensen, Joseph B.
name: Ma, Chung-Pei
name: Milne, Peter A.
name: Greene, Jenny E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a measurement of the Hubble constant $H_0$ from surface brightness fluctuation (SBF) distances for 63 bright, mainly early-type galaxies out to 100 Mpc observed with the Wide Field Camera 3 Infrared Channel (WFC3/IR) on the Hubble Space Telescope (HST). The sample is drawn from several independent HST imaging programs using the F110W bandpass of WFC3/IR. The majority of galaxies are in the 50 to 80 Mpc range and come from the MASSIVE galaxy survey. The median statistical uncertainty on individual distance measurements is 4%. We construct the Hubble diagram with these IR SBF distances and constrain $H_0$ using {four} different treatments of the galaxy velocities. For the SBF zero point calibration, we use both the existing tie to Cepheid variables, updated for consistency with the latest determination of the distance to the Large Magellanic Cloud from detached eclipsing binaries, and a new tie to the tip of the red giant branch (TRGB) calibrated from the maser distance to NGC4258. These two SBF calibrations are consistent with each other and with theoretical predictions from stellar population models. From a weighted average of the Cepheid and TRGB calibrations, we derive $H_0=73.3{\,\pm\,}0.7{\,\pm\,}2.4$ km/s/Mpc, where the error bars reflect the statistical and systematic uncertainties. This result accords well with recent measurements of $H_0$ from Type~Ia supernovae, time delays in multiply lensed quasars, and water masers. The systematic uncertainty could be reduced to below 2% by calibrating the SBF method with precision TRGB distances for a statistical sample of massive early-type galaxies out to the Virgo cluster measured with the James Webb Space Telescope.
description: Replaced with version accepted to ApJ. 17 pages, including detailed Appendix on the Tip of the Red Giant Branch calibration; have added an additional peculiar velocity model to the analysis