cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
TAXONOMY AND BIOSTRATIGRAPHIC RECORD OF THE UPPER TRIASSIC CONODONTS OF THE PIZZO MONDELLO SECTION (WESTERN SICILY, ITALY), GSSP CANDIDATE FOR THE BASE OF THE NORIAN
Creators: name: MAZZA, MICHELE
name: RIGO, MANUEL
name: GULLO, MARIA
Publisher: name: Università degli Studi di Milano
Year: 2012
Subjects: Conodonts; Biostratigraphy; Upper Triassic; Carnian/Norian Boundary; Pizzo Mondello; GSSP

description: New taxonomic and biostratigraphic investigations on the late Carnian to Rhaetian (Upper Triassic) platform conodonts from the Pizzo Mondello section (Western Sicily, Italy, Sicano basin) are here presented. Pizzo Mondello is one of the two GSSP candidates for the Carnian/Norian boundary; the section is a 430 m thick continuous succession of upper Carnian to upper Norian marine limestones (Scillato Formation), characterized by uniform facies and high sedimentation rates, and ca. 20 m of Rhaetian white calcilutites (Portella Gebbia limestone). Pizzo Mondello offers one of the most complete conodont records for this time interval in the Tethys. The conodont faunas are characterized by a large variety of species, belonging to the genera Carnepigondolella, Epigondolella, Metapolygnathus, Misikella, Mockina, Neocavitella, Norigondolella, Paragondolella, and Parvigondolella. The richness of the populations allowed a detailed revision and description of all the Upper Triassic species and morphotypes recovered. The revision of the problematic species Carnepigondolella nodosa and "Metapolygnathus communisti B" was thus possible, leading to the establishment of two new species: Carnepigondolella tuvalica n.sp. and Carnepigondolella gulloae n.sp. The latter species would be a good proxy for the Carnian/Norian boundary in the case that the FAD of Halobia austriaca (sample FNP135a) will be selected as the primary biomarker for the base of the Norian.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 118, No 1
Auszüge aus dem Bericht des Catholica-Beauftragten der VELKD
Creators: name: Knuth, Hans Christian
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 45 Nr. 1 (1996): Ökumenische Rundschau, Band 45, Heft 1
Solvable model of quantum microcanonical states
Creators: name: Bender, Carl M
name: Brody, Dorje C
name: Hook, Daniel W
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This letter examines the consequences of a recently proposed modification of the postulate of equal {\it a priori} probability in quantum statistical mechanics. This modification, called the {\it quantum microcanonical postulate} (QMP), asserts that for a system in microcanonical equilibrium all pure quantum states having the same energy expectation value are realised with equal probability. A simple model of a quantum system that obeys the QMP and that has a nondegenerate spectrum with equally spaced energy eigenvalues is studied. This model admits a closed-form expression for the density of states in terms of the energy eigenvalues. It is shown that in the limit as the number of energy levels approaches infinity, the expression for the density of states converges to a $δ$ function centred at the intermediate value $(E_{\rm max}+E_{\rm min})/ 2$ of the energy. Determining this limit requires an elaborate asymptotic study of an infinite sum whose terms alternate in sign.
description: 8 pages, 1 figure
Transcription of interview regarding fire and land management
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-141119-05: Transcription of a video interview with Verdena discussing the use of fire for land management, in Hupa and English. File "Hupa Fire Film_Verdena_Parker.mp4," produced by the Hoopa Valley Tribe in April 2005 and obtained from Elisha Flores (a graduate student in forestry at Oregon State University). This session covers the Hupa portions from the beginning of the file to 10:00.
Prosocial moral reasoning, empathy, perspective-taking, and social behavior: a comparative study of delinquent and nondelinquent youth
Creators: name: Elaschuk, Cory L.
Publisher: name: University of British Columbia
Year: 2009

description: This research study was guided by four purposes. First, to compare the prosocial moral reasoning of juvenile delinquents with that of their non-delinquent peers. Second, to compare both empathy and perspective-taking between these two groups. Next, to explore and elucidate the relationships among pro-social moral reasoning, empathy, and perspective-taking; and to examine the relationship of these constructs to dimensions of social behavior and aggression in delinquent and non-delinquent youth. And finally, to explore pro-social moral reasoning, empathy, and perspective-taking within the delinquent sample. Forty juvenile delinquent males and 40 of their non-delinquent peers were matched in terms of age and ethnicity. All participants were individually administered measures designed to assess pro-social moral reasoning, empathy, perspective-taking, and positive and negative social behaviors (via teacher and self-reports) in one 50-minute session. Delinquent participants were classified into one of three subgroups on the basis of their scores on a self-report measure of aggression against persons and property; (a) low aggression-against-persons and low aggression-against-property, (b) high aggression-against-persons and low aggression-against-property, and (c) high aggression-against-persons and high aggression-against-property. The results generally revealed that delinquent participants were lower in pro-social moral reasoning, empathy, and perspective-taking than their non-delinquent peers. Further, significant relationships were found among the variables of pro-social moral reasoning, empathy, perspective-taking, positive and negative indices of social behavior, and type of aggression. Finally, delinquent adolescents classified into the subgroup scoring high on both aggression-against-persons and aggression-against-property were found to score significantly lower on both empathy and perspective-taking than delinquents classified as scoring low on both types of aggression. No significant differences were found among any of the three delinquent subgroups on pro-social moral reasoning. Theoretical and practical implications of these findings are discussed in terms of the strengths and limitations of the present study and suggestions for future research.
TRIASSIC AND JURASSIC CALCAREOUS NANNOFOSSILS OF THE PIZZO MONDELLO SECTION: A SEM STUDY
Creators: name: PRETO, NEREO
name: RIGO, MANUEL
name: AGNINI, CLAUDIA
name: BERTINELLI, ANGELA
name: GUAIUMI, CHIARA
name: BORELLO, STEFANO
name: WESTPHAL, HILDEGARD
Publisher: name: Università degli Studi di Milano
Year: 2012
Subjects: Upper Triassic; Lower Jurassic; Tethys; Calcareous nannofossils; Calcareous dinocysts; Conodonts; Radiolarians

description: Pizzo Mondello is a ca. 500 m thick pelagic-hemipelagic succession cropping out in Sicily consisting of a nodular cherty limestone facies association of late Carnian to late Norian age. The uppermost portion was attributed to the Rhaetian and is represented by the plane-bedded Portella Gebbia Limestone. The section has been proposed as the stratotype for the base of the Norian stage. The calcareous nannofossil content of limestones was studied with Scanning Electron Microscope (SEM) in two portions of the Pizzo Mondello section, one within 'La Cava' that encompasses all the proposed horizons for the base of the Norian, and one within the Portella Gebbia Limestone in the uppermost part of the section.
Calcareous nannofossil assemblages of the first portion display low diversity, being constituted exclusively by calcispheres, that may constitute up to 40% of the sediment volume. Species richness increases in the upper portion. Initially, samples are dominated by Prinsiosphaera triassica, a nannolith of unknown taxonomic affinity. Rare calcareous dinocysts (Thoracosphaera cf. geometrica) and coccoliths are present in few samples. Uppermost samples are still dominated by "calcispheres" comparable to Thoracosphaera, but also yield a variety of coccoliths and nannoliths.
Calcareous nannofossil distribution was calibrated with conodont and radiolarian biostratigraphy. On the basis of this integrated work, specimens attributed to cf. Thoracosphaera, observed in the lower portion of the section, are late Carnian to early Norian, while samples dominated by Prinsiosphaera, with rare Thoracosphaera and coccoliths are Rhaetian. The calcareous nannofossil assemblage of the uppermost samples, along with radiolarians and the absence of conodonts, point to a Jurassic age (Pliensbachian) for the uppermost Portella Gebbia Limestone at Pizzo Mondello. In conclusion, the age of the uppermost part of the Pizzo Mondello section is Jurassic, i.e., younger than previously thought. Calcareous nannofossils are present from the base of section and exhibit a significant taxonomic diversity, thus providing an auxiliary biostratigraphic frame for the Rhaetian - Jurassic interval in this area.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 118, No 1
Gamma-ray bursts and other sources of giant lightning discharges in protoplanetary systems
Creators: name: McBreen, B.
name: Winston, E.
name: McBreen, S.
name: Hanlon, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Lightning in the solar nebula is considered to be one of the probable sources for producing the chondrules that are found in meteorites. Gamma-ray bursts (GRBs) provide a large flux of gamma-rays that Compton scatter and create a charge separation in the gas because the electrons are displaced from the positive ions. The electric field easily exceeds the breakdown value of ~1 V m^-1 over distances of order 0.1 AU. The energy in a giant lightning discharge exceeds a terrestrial lightning flash by a factor of ~10^12. The predicted post-burst emission of gamma-rays from accretion into the newly formed black hole or spin-down of the magnetar is sufficiently intense to cause a lightning storm in the nebula that lasts for days and is more probable than the GRB because the radiation is beamed into a larger solid angle. The giant outbursts from nearby soft gamma-ray repeater sources (SGRs) are also capable of causing giant lightning discharges. The total amount of chondrules produced is in reasonable agreement with the observations of meteorites. Furthermore in the case of GRBs most chondrules were produced in a few major melting events by nearby GRBs and lightning occurred at effectively the same time over the whole nebula, and provide accurate time markers to the formation of chondrules and evolution of the solar nebula. This model provides a reasonable explanation for the delay between the formation of calcium aluminium inclusions (CAIs) and chondrules.
Generalized Kubo formula for spin transport: A theory of linear response to non-Abelian fields
Creators: name: Jin, Pei-Qing
name: Li, You-Quan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The traditional Kubo formula is generalized to describe the linear response with respect to non-Abelian fields. To fulfil the demand for studying spin transport, the SU(2) Kubo formulae are derived by two conventional approaches with different gauge fixings. Those two approaches are shown to be equivalent where the non-conservation of the SU(2) current plays an essential role in guaranteeing the consistency. Some concrete examples relating Spin Hall Effect are considered. The dc spin conductivity vanishes in the system with parabolic unperturbed dispersion relation. By applying a time-dependent Rashba field, the spin conductivity can be measured directly. Our formula is also applied to the high-dimensional representation for the interests of some important models, such as Luttinger model and bilayer spin Hall system.
description: Revtex, 10 pages, 2 tables, typos corrected and ref added
CYMBOSPONDYLUS VERTEBRAE (ICHTHYOSAURIA, SHASTASAURIDAE) FROM THE UPPER ANISIAN PREZZO LIMESTONE (MIDDLE TRIASSIC, SOUTHERN ALPS) WITH AN OVERVIEW OF THE CHRONOSTRATIGRAPHIC DISTRIBUTION OF THE GROUP
Creators: name: BALINI, MARCO
name: C. RENESTO, SILVIO
Publisher: name: Università degli Studi di Milano
Year: 2012
Subjects: Middle Triassic; Anisian; Southern Alps; Prezzo Limestone; Germanic Basin; Nevada; Ichthyosaurs; Shastasauridae

description: Four vertebral centra from the well known fossil-bearing Prezzo Limestone (Upper Anisian, Middle Triassic) at the newly discovered locality Piazza Brembana (Bergamo) are described. The four bones were found exposed on the bed surface in an articulated position. Despite the incompleteness of three centra due to erosion, their otherwise fairly good preservation facilitated their study and attribution to a shastasaurid ichthyosaur. Even though the classification of isolated vertebral centra at the genus level is controversial, the presence of diapophyses truncated by the cranial margin of the centra is still considered to be diagnostic for Cymbospondylus. The new discovery comes from an ammonoid-bearing facies, which is not unusual for ichthyosaurs, and the bio-chronostratigraphic position of the Piazza Brembana bones is accurately defined by ammonoids from the lowest part of the Trinodosus Zone (Illyrian, Middle Triassic). Records of Cymbospondylus in the Southern Alps, Germanic Basin, western United States and Spitsbergen are summarized and all previous occurrences of the genus are bio-chronostratigraphically correlated by utilizing the abundant ammonoid literature. The single occurrence of Phantomosaurus neubigii is also considered, since this species is regarded in the literature as the sister taxon of Cymbospondylu. Material referred to Cymbospondylus extends from a single occurrence in the Olenekian (late Early Triassic) to the Longobardian (Late Ladinian), and its stratigraphic distribution is strictly controlled by the development of basins. Within these basins the distribution of specimens appears to include relatively protected and shallow waters. Such a distribution is consistent with the mode of life of this group of ichthyosaurs as suggested by morphofunctional analysis. Cymbospondylus, like most Triassic Ichthyosaurs, probably was an undulatory swimmer, more maneuverable but slower than their Jurassic successors.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 118, No 1
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-141119-04: 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).
Absolute emission rates of Spontaneous Parametric Down Conversion into single transverse Gaussian modes
Creators: name: Ling, Alexander
name: Lamas-Linares, Antia
name: Kurtsiefer, Christian
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide an estimate on the absolute values of the emission rate of photon pairs produced by spontaneous parametric down conversion in a bulk crystal when all interacting fields are in single transverse Gaussian modes. Both collinear and non-collinear configurations are covered, and we arrive at a fully analytical expression for the collinear case. Our results agree reasonably well with values found in typical experiments, which allows this model to be used for understanding the dependency on the relevant experimental parameters.
description: RevTeX, 7 pages, 4 figures; this version has a short section discussing ratios between pump and target waists
Radiation drive temperature measurements in aluminium via radiation-driven shock waves: Modeling using self-similar solutions
Creators: name: Heizler, Shay I.
name: Shussman, Tomer
name: Fraenkel, Moshe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the phenomena of radiative-driven shock waves using a semi-analytic model based on self similar solutions of the radiative hydrodynamic problem. The relation between the hohlraum drive temperature $T_{\mathrm{Rad}}$ and the resulting ablative shock $D_S$ is a well-known method for the estimation of the drive temperature. However, the various studies yield different scaling relations between $T_{\mathrm{Rad}}$ and $D_S$, based on different simulations. In [T. Shussman and S.I. Heizler, Phys. Plas., 22, 082109 (2015)] we have derived full analytic solutions for the subsonic heat wave, that include both the ablation and the shock wave regions. Using this self-similar approach we derive here the $T_{\mathrm{Rad}}(D_S)$ relation for aluminium, using the detailed Hugoniot relations and including transport effects. By our semi-analytic model, we find a spread of $\approx 40$eV in the $T_{\mathrm{Rad}}(D_S)$ curve, as a function of the temperature profile's duration and its temporal profile. Our model agrees with the various experiments and the simulations data, explaining the difference between the various scaling relations that appear in the literature.
description: 28 pages, 12 figures
Predicting the Structural, Electronic and Magnetic Properties of Few Atomic-layer Polar Perovskite
Creators: name: Xu, Shaowen
name: Jia, Fanhao
name: Hu, Shunbo
name: Sundaresan, A.
name: Ter-Oganessian, Nikita
name: Pyatakov, A. P.
name: Cheng, Jinrong
name: Zhang, Jincang
name: Cao, Shixun
name: Ren, Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Density functional theory (DFT) calculations are performed to predict the structural, electronic and magnetic properties of electrically neutral or charged few-atomic-layer (AL) oxides whose parent systems are based on polar perovskite $KTaO_{3}$. Their properties vary greatly with the number of ALs ($n_{AL}$) and the stoichiometric ratio. In the few-AL limit ($n_{AL}\leqslant 14$), the even AL (EL) systems with chemical formula $(KTaO_{3})_{n}$ are semiconductors, while the odd AL (OL) systems with formula ($K_{n+1}Ta_{n}O_{3n+1}$ or $K_{n}Ta_{n+1}O_{3n+2}$) are half-metal except for the unique $KTa_{2}O_{5}$ case which is a semiconductor due to the large Peierls distortions. After reaching certain critical thickness ($n_{AL}>14$), the EL systems show ferromagnetic surface states, while ferromagnetism disappears in the OL systems. These predictions from fundamental complexity of polar perovskite when approaching the two-dimensional (2D) limit may be helpful for interpreting experimental observations later.
description: Phys. Chem. Chem. Phys., 2021
CLASTS OF UPPERMOST ALBIAN (VRACONIAN) LIMESTONE IN THE EOCENE CUCCURU 'E FLORES CONGLOMERATE OF THE M. ALBO MASSIF (EASTERN SARDINIA)
Creators: name: DIENI, IGINIO
name: MASSARI, FRANCESCO
name: RADULOVIC, VLADAN
Publisher: name: Università degli Studi di Milano
Year: 2012
Subjects: Uppermost Albian clasts; Eocene conglomerate; Macrofossils; Brachiopods; Planktonic foraminifers; Palaeogeography; Eastern Sardinia

description: Rare clasts of richly fossiliferous uppermost Albian (Vraconian auctt.) glauconitic and phosphatic, ammonite-bearing limestone have been found in the Eocene Cuccuru ’e Flores Conglomerate in the area of M. Albo massif (eastern Sardinia). The limestone is wholly comparable in facies and fossil assemblage to the classical outcrop known in the Orosei area. The fossil content includes also brachiopods and abundant planktonic foraminifers of the Thalmanninella (formerly Rotalipora) appenninica Zone. In the palaeontological part the brachiopods Orbirhynchia parkinsoni and Capillithyris capillata are described and discussed. Vraconian highly condensed deposits, characterized by basal erosional gaps of variable importance, have particular relevance, being known to be widely distributed in the northern Tethyan margin with common characteristics, such as authigenic glauconite, phosphatic nodules and a rich outer-shelf fauna.
description: Rivista italiana di Paleontologia e Stratigrafia, Vol 118, No 1
The GRB 060218/SN 2006aj event in the context of other Gamma-Ray Burst Supernovae
Creators: name: Ferrero, P.
name: Kann, D. A.
name: Zeh, A.
name: Klose, S.
name: Pian, E.
name: Palazzi, E.
name: Masetti, N.
name: Hartmann, D. H.
name: Sollerman, J.
name: Deng, J.
name: Filippenko, A. V.
name: Greiner, J.
name: Hughes, M. A.
name: Mazzali, P.
name: Li, W.
name: Rol, E.
name: Smith, R. J.
name: Tanvir, N. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The supernova SN 2006aj associated with GRB 060218 is the second-closest GRB-SN observed to date (z=0.033). We present Very Large Telescope, Liverpool Telescope, and Katzman Automatic Imaging Telescope multi-color photometry of SN 2006aj. This supernova is found to be subluminous and rapidly evolving. Its early light curve includes an additional wavelength-dependent component, which can be interpreted as shock break-out. We compare the photometric evolution of multi-band light curves with the corresponding properties of the present sample of more than 10 GRB-SNe with precisely known redshifts. Using host-galaxy extinction measurements, we derive extinction-corrected GRB-SN luminosities and place SN 2006aj in the context of this GRB-selected supernova sample as well as in the context of local stripped-envelope supernovae.
description: accepted for publication in A&A, updated references
Exclusive dilepton production via timelike Compton scattering in heavy ion collisions
Creators: name: Peccini, G. M.
name: Moriggi, L. S.
name: Machado, M. V. T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the present work, $k_T$-factorization formalism is applied to compute the exclusive dilepton production by timelike Compton scattering (TCS) in $eA$, $pA$ and $AA$ collisions. The nuclear effects are investigated considering heavy and light ions. The production cross section in terms of invariant mass and rapidity distribution of the lepton pair is shown. The analysis is done for electron-ion collisions at the Large Hadron-Electron Collider (LHeC), its high-energy upgrade (HE-LHeC) and at the Future Circular Collider (FCC) in lepton-hadron mode. Additionally, ultraperipheral heavy ion collisions at future runs of the Large Hadron Collider (LHC) and at the FCC (hadron-hadron mode) are also considered.
description: 9 pages, 4 figures. To be published in Physical Review D
Systematics of geometric scaling
Creators: name: Gelis, F.
name: Peschanski, R.
name: Soyez, G.
name: Schoeffel, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using all available data on the deep-inelastic cross-sections at HERA at x<0.01, we look for geometric scaling of the form σ^{γ^*p}(τ) where the scaling variable τbehaves alternatively like \log(Q^2)-λY, as in the original definition, or \log(Q^2)-λ\sqrt{Y}, which is suggested by the asymptotic properties of the Balitsky-Kovchegov (BK) equation with running QCD coupling constant. A ``Quality Factor'' (QF) is defined, quantifying the phenomenological validity of the scaling and the uncertainty on the intercept λ. Both choices have a good QF, showing that the second choice is as valid as the first one, predicted for fixed coupling constant. A comparison between the QCD asymptotic predictions and data is made and the QF analysis shows that the agreement can be reached, provided going beyond leading logarithmic accuracy for the BK equation.
description: 4 pages, 4 figures
The cosmological simulation code GADGET-2
Creators: name: Springel, Volker
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the cosmological simulation code GADGET-2, a new massively parallel TreeSPH code, capable of following a collisionless fluid with the N-body method, and an ideal gas by means of smoothed particle hydrodynamics (SPH). Our implementation of SPH manifestly conserves energy and entropy in regions free of dissipation, while allowing for fully adaptive smoothing lengths. Gravitational forces are computed with a hierarchical multipole expansion, which can optionally be applied in the form of a TreePM algorithm, where only short-range forces are computed with the `tree'-method while long-range forces are determined with Fourier techniques. Time integration is based on a quasi-symplectic scheme where long-range and short-range forces can be integrated with different timesteps. Individual and adaptive short-range timesteps may also be employed. The domain decomposition used in the parallelisation algorithm is based on a space-filling curve, resulting in high flexibility and tree force errors that do not depend on the way the domains are cut. The code is efficient in terms of memory consumption and required communication bandwidth. It has been used to compute the first cosmological N-body simulation with more than 10^10 dark matter particles, reaching a homogeneous spatial dynamic range of 10^5 per dimension in a 3D box. It has also been used to carry out very large cosmological SPH simulations that account for radiative cooling and star formation, reaching total particle numbers of more than 250 million. We present the algorithms used by the code and discuss their accuracy and performance using a number of test problems. GADGET-2 is publicly released to the research community.
description: submitted to MNRAS, 31 pages, 20 figures (reduced resolution), code available at http://www.mpa-garching.mpg.de/gadget
Model Checking Probabilistic Pushdown Automata
Creators: name: Esparza, Javier
name: Kucera, Antonin
name: Mayr, Richard
Publisher: name: arXiv
Year: 2005
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.2.4; F.1.1; G.3

description: We consider the model checking problem for probabilistic pushdown automata (pPDA) and properties expressible in various probabilistic logics. We start with properties that can be formulated as instances of a generalized random walk problem. We prove that both qualitative and quantitative model checking for this class of properties and pPDA is decidable. Then we show that model checking for the qualitative fragment of the logic PCTL and pPDA is also decidable. Moreover, we develop an error-tolerant model checking algorithm for PCTL and the subclass of stateless pPDA. Finally, we consider the class of omega-regular properties and show that both qualitative and quantitative model checking for pPDA is decidable.
title: Weighted Sum-of-Trees Model for Clustered Data
title: Optimizing Decision Trees for Clustered and Hierarchical Data
titleType: Other
Creators: name: McCoy, Kevin
name: Peterson, Christine
Publisher: name: Zenodo
Year: 2024
Subjects: decision trees
random forest
mixed effects modeling
weighted ensemble
clustered data

description: Clustered data, which arise when observations are nested within groups, are incredibly common in clinical, education, and social science research. Traditionally, a linear mixed model, which includes random effects to account for within-group correlation, would be used to model the observed data and make new predictions on unseen data. Some work has been done to extend the mixed model approach beyond linear regression into more complex and non-parametric models, such as decision trees and random forests. However, existing methods are limited to using the global fixed effects for prediction on data from out-of-sample groups, effectively assuming that all clusters share a common outcome model. We propose a lightweight sum-of-trees model in which we learn a decision tree for each sample group. We combine the predictions from these trees using weights so that out-of-sample group predictions are more closely aligned with the most similar groups in the training data. This strategy also allows for inference on the similarity across groups in the outcome prediction model, as the unique tree structures and variable importances for each group can be directly compared. We show our model outperforms traditional decision trees and random forests in a variety of simulation settings. Finally, we showcase our method on two existing data sets: the Hospital Doctor Patient data set, a synthetic benchmark data set where patients are grouped by treating physician and hospital, and real-world data from the sarcoma cohort of The Cancer Genome Atlas, where patient samples are grouped by sarcoma subtype.
Photodetachment of H$^{-}$ by a Short Laser Pulse in Crossed Static Electric and Magnetic Fields
Creators: name: Peng, Liang-You
name: Wang, Qiaoling
name: Starace, Anthony F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a detailed quantum mechanical treatment of the photodetachment of H$^{-}$ by a short laser pulse in the presence of crossed static electric and magnetic fields. An exact analytic formula is presented for the final state electron wave function (describing an electron in both static electric and magnetic fields and a short laser pulse of arbitrary intensity). In the limit of a weak laser pulse, final state electron wave packet motion is examined and related to the closed classical electron orbits in crossed static fields predicted by Peters and Delos [Phys. Rev. A \textbf{47}, 3020 (1993)]. Owing to these closed orbit trajectories, we show that the detachment probability can be modulated, depending on the time delay between two laser pulses and their relative phase, thereby providing a means to partially control the photodetachment process. In the limit of a long, weak pulse (i.e., a monochromatic radiation field) our results reduce to those of others; however, for this case we analyze the photodetachment cross section numerically over a much larger range of electron kinetic energy (i.e., up to 500 cm$^{-1}$) than in previous studies and relate the detailed structures both analytically and numerically to the above-mentioned, closed classical periodic orbits.
description: Submitted to Physical Review A
Diffusion Fails to Make a Stink
Creators: name: McCaul, Gerard
name: Mershin, Andreas
name: Bondar, Denys I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this work we consider the question of whether a simple diffusive model can explain the scent tracking behaviours found in nature. For this behaviour to occur, both the concentration of a scent and its gradient must be above some threshold. Applying these conditions to the solutions of various diffusion equations, we find that a purely diffusive model cannot simultaneously satisfy the tracking conditions when parameters are in the experimentally observed range. This demonstrates the necessity of modelling odor dispersal with full fluid dynamics, where non-linear phenomena such as turbulence play a critical role.
description: 8 pages, 4 figures
Botschaft des Patriarchen von Moskau und der ganzen Rus' Aleksij II. an das deutsche Volk
Creators: name: Aleksij II., Moskau
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 45 Nr. 1 (1996): Ökumenische Rundschau, Band 45, Heft 1
From single-particle-like to interaction-mediated plasmonic resonances in graphene nanoantennas
Creators: name: Müller, Marvin M.
name: Kosik, Miriam
name: Pelc, Marta
name: Bryant, Garnett W.
name: Ayuela, Andrés
name: Rockstuhl, Carsten
name: Słowik, Karolina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: Plasmonic nanostructures attract tremendous attention as they confine electromagnetic fields well below the diffraction limit while simultaneously sustaining extreme local field enhancements. To fully exploit these properties, the identification and classification of resonances in such nanostructures is crucial. Recently, a novel figure of merit for resonance classification has been proposed 1 and its applicability was demonstrated mostly to toy model systems. This novel measure, the energy-based plasmonicity index (EPI), characterizes the nature of resonances in molecular nanostructures. The EPI distinguishes between either a single-particle-like or a plasmonic nature of resonances based on the energy space coherence dynamics of the excitation. To advance the further development of this newly established measure, we present here its exemplary application to characterize the resonances of graphene nanoantennas. In particular, we focus on resonances in a doped nanoantenna. The structure is of interest, as a consideration of the electron dynamics in real space might suggest a plasmonic nature of selected resonances in the low doping limit but our analysis reveals the opposite. We find that in the undoped and moderately doped nanoantenna, the EPI classifies all emerging resonances as predominantly single-particle-like and only after doping the structure heavily, the EPI observes plasmonic response.
description: The following article has been submitted to the Journal of Applied Physics
ЎЗБЕК ТИЛИДАГИ СПОРТ ШАРҲЛАРИДА ЎЗЛАШГАН СЎЗЛАРДАН ФОЙДАЛАНИШ МУАММОЛАРИ
Creators: name: Рустамов, Илёс
Publisher: name: Zenodo
Year: 2024

description: Ушбу мақолада ўзбек спорт шарҳловчилари нутқида фаол қўлланиладиган спорт лексикасининг келиб чиқиши, ўзбек спорт лингвомаданиятига инглиз тилининг таъсири кўриб чиқилган. Ўзлашган сўзларнинг фонетик ва морфологик жиҳатларига эътибор қаратилган. Спорт терминларининг ўзбек тили ва хорижий тиллар ўртасида узвий ришталарни боғлашдаги аҳамияти таъкидлаб ўтилган.
Propagation of strangelets in the Earth's atmosphere
Creators: name: Wu, Fei
name: Xu, Ren-Xin
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A new model for the description of the behaviour of strangelets in the Earth's atmosphere is presented. Strangelet fission induced by collision with air nuclei is included. It is shown that strangelets with certain parameters of initial mass and energy may reach depths near sea level, which can be examined by ground-based experiments.
description: 10 pages, 6 figures
Structural and magnetic properties of half-heusler alloys NiCrZ (Z = Si, P, Ge, As, Te): First principle study
Creators: name: Dinh, Van An
name: Sato, Kazunori
name: Katayama-Yoshida, Hirosi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a first principle study of new class of high-$T_c$ half-heusler ferromagnets NiCrZ (Z = Si, P, Ge, As, Te). The structure and magnetic properties are investigated through the calculation of the electronic structure, equilibrium lattice constant, magnetic exchange interaction $J_{ij}$ and Curie temperature $T_c$. The role of $sp$-elements and the influence of lattice expansion/compression are also studied. In alloys having 20 valence electrons, a pseudo-gap of the majority band can be formed at Fermi level. Otherwise, the half-metallicity and ferromagnetism at temperatures much higher than room temperature are found to be stable in a wide range of lattice expansion. Based on these results, NiCrZ can be expected to be promising materials for spintronics.
description: 10 pages, 3 figures
title: Свет и тьма в художественном мире М.Булгакова
Creators: name: Дождикова, Надежда
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Исследуется ключевая роль образов света и тьмы в формировании художественной картины мира в прозе М.Булгакова. Раскрывается двойственная природа образов света и тьмы. Отмечается особое внимание писателя к характеру освещения, источникам света. Если в произведениях 1930-х гг. главную роль играют природные источники света (солнце, луна, молния), то в прозе 1920-х гг. — свет электрический. Особое значение в творчестве Булгакова имеют сюжетные ситуации, связанные с ярким электрическим освещением. Не менее значимы у Булгакова и образы тьмы — не только как основа природного и городского пейзажа, но и как активно действующая в мире сила. Исследуется трансформация традиционного круга значений света и тьмы в прозе писателя, когда свет оказывается связан с темами агрессии, гибели, катастрофы, а тьма, в свою очередь, приобретает позитивные, защитные функции. Делается вывод о том, что парадоксальная антитеза губительного света и спасительной тьмы — одна из базовых черт художественного мира Булгакова.
Elicitation of the "Picture Series for Positional Verbs"
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-141119-03: Elicitation of the "Picture Series for Positional Verbs," presented in sets with similar figure/ground relations. Reference: Ameka, F. K., De Witte, C., & Wilkins, D. (1999). Picture series for positional verbs: Eliciting the verbal component in locative descriptions. In D. Wilkins (Ed.), Manual for the 1999 Field Season (pp. 48-54). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.2573831.
Desk-Research Analysis and Identification of SA and Training Tools
Creators: name: Macias, Mateusz
Publisher: name: Zenodo
Year: 2021

description: This document is summary of the state of the art study done to support the ongoing work in the ASSISTANCE project. The content consists of a desk research performed by the project consortium partners experienced in specific areas focusing on technologies that are improved or developed in ASSISTANCE. The desk research is combined with the results of the questionnaire response provided by the end users.
Slow Cooling and Fast Reinflation for Hot Jupiters
Creators: name: Thorngren, Daniel P.
name: Fortney, Jonathan J.
name: Lopez, Eric D.
name: Berger, Travis A.
name: Huber, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The unexpectedly large radii of hot Jupiters are a longstanding mystery whose solution will provide important insights into their interior physics. Many potential solutions have been suggested, which make diverse predictions about the details of inflation. In particular, although any valid model must allow for maintaining large planetary radii, only some allow for radii to increase with time. This reinflation process would potentially occur when the incident flux on the planet is increased. In this work, we examine the observed population of hot Jupiters to see if they grow as their parent stars brighten along the main sequence. We consider the relation between radius and other observables, including mass, incident flux, age, and fractional age (age over main sequence lifetime), and show that main sequence brightening is often sufficient to produce detectable reinflation. We further argue that these provide strong evidence for the relatively rapid reinflation of giant planets, and discuss the implications for proposed heating mechanisms. In our population analysis we also find evidence for a "delayed-cooling effect", wherein planets cool and contract far more slowly than expected. While not capable of explaining the observed radii alone, it may represent an important component of the effect. Finally, we identify a weak negative relationship between stellar metallicity and planet radius which is presumably the result of enhanced planetary bulk metallicity around metal-rich stars and has important implications for planet formation theory.
description: 10 pages, 3 figures, 1 table. Revision improves clarity, but scientific results are unchanged. Accepted to The Astrophysical Journal Letters
Algebraic shifting of finite graphs
Creators: name: Murai, Satoshi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Combinatorics (math.CO)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 05C75; 05C85, 13F55, 13D02

description: In the present paper, exterior algebraic shifting and symmetric algebraic shifting of bipartite graphs and chordal graphs are studied. First, we will determine the symmetric algebraic shifted graph of complete bipartite graphs. It turns out that, for $a>3$ and $b>3$, the exterior algebraic shifted graph of the complete bipartite graph $K_{a,b}$ of size $a,b$ is different from the symmetric algebraic shifted graph of $K_{a,b}$. Second, we will show that the exterior algebraic shifted graph of any chordal graph $G$ is coincident with the symmetric algebraic shifted graph of $G$.
description: 21pages, the whole reversion
The occupation of a city
Creators: name: Edwards, J. Scott
Publisher: name: University of British Columbia
Year: 2009

description: Vancouver is currently implementing a strategic plan of controlled population and job growth. In the downtown area this increase in population is to be accommodated in new housing developments at False Creek North, Granville Slopes, Triangle West and Coal Harbour. These zones have been planned and designed to provide amenities for the comfort of the residents who will live in them, and in some cases have included features that will make them usable at a city or regional level. The developments are a reflection of both current social values and economic realities. The effects of the projected increase in population that the downtown area anticipates will not, however, be restricted to these newly developing districts. As the number of people using a finite amount of space increases, the character of Vancouver's downtown will change: an increase in the demand for downtown office space, intensified use of regional scaled amenities such as Stanley Park, and an expanded use of downtown infrastructure and amenities will effect residents on many levels. Furthermore, as economic pressures change the shape of housing in the downtown area, new residents will put new demands on the fabric of the city. Vancouver will be required to adapt to these changing demands if it is to remain a livable city. The Graduation Project addresses these conditions from two positions. The programme for the project was developed through familiarization with issues relevant to the discussion of urbanity and density (both general and specific to Vancouver). Also, informed by observations about urban spaces, the project questions the definition of site in an exploration of the potential of underutilized spaces found within the fabric of the city. The building, an alternative office environment built on a corporate plaza, both effects and is effected by the environment in which it is situated. The proposal investigates how a building can benefit from the unique characteristics of the site while making a positive contribution to the space of the city. This approach to the problem of accommodating change in a densifying city is one of incremental addition to the layers of city fabric that already exist, reflective of current values just as prior layers reflect the values of their times.
Chandra Observations of Abell 2261 Brightest Cluster Galaxy, a Candidate Host to a Recoiling Black Hole
Creators: name: Gultekin, Kayhan
name: Burke-Spolaor, Sarah
name: Lauer, Tod R.
name: Lazio, T. Joseph W.
name: Moustakas, Leonidas A.
name: Ogle, Patrick
name: Postman, Marc
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use Chandra X-ray observations to look for evidence of a recoiling black hole from the brightest cluster galaxy in Abell 2261 (A2261-BCG). A2261-BCG is a strong candidate for a recoiling black hole because of its large, flat stellar core, revealed by Hubble Space Telescope imaging observations. We took 100-ksec observations with Chandra and combined it with 35 ksec of archival observations to look for low-level accretion onto a black hole of expected mass $M\sim10^{10}\ M_{\scriptscriptstyle \odot}$ that could possibly be located in one of four off-center stellar knots near the galaxy's center or else in the optical center of the galaxy or in the location of radio emission. We found no X-ray emission arising from a point source in excess of the cluster gas and can place limits on the accretion of any black hole in the central region to a 2-7 keV flux below $4.3 \times 10^{-16}\ \mathrm{erg\ s^{-1}\ cm^{-2}}$, corresponding to a bolometric Eddington fraction of about $10^{-6}$. Thus there is either no $10^{10}\ M_{\scriptscriptstyle \odot}$ black hole in the core of A2261-BCG, or it is accreting at a low level. We also discuss the morphology of the X-ray emitting gas in the cluster and how its asymmetry is consistent with a large dynamic event.
description: Accepted to AAS Journals. 12 pages of main text and figures, plus references and appendix tables and figures
Geometric obstruction of black holes
Creators: name: Punzi, Raffaele
name: Schuller, Frederic P.
name: Wohlfarth, Mattias N. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the global structure of Lorentzian manifolds with partial sectional curvature bounds. In particular, we prove completeness theorems for homogeneous and isotropic cosmologies as well as static spherically symmetric spacetimes. The latter result is used to rigorously prove the absence of static spherically symmetric black holes in more than three dimensions. The proofs of these new results are preceded by a detailed exposition of the local aspects of sectional curvature bounds for Lorentzian manifolds, which extends and strengthens previous constructions.
description: 50 pages, 2 figures
Dilepton production in pp and CC collisions with HADES
Creators: name: HADES Collaboration
name: Froehlich, I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Dilepton production has been measured with HADES, the "High Acceptance DiElectron Spectrometer". In pp collisions at 2.2GeV kinetic beam energy, exclusive eta production and the Dalitz decay eta -> gamma e+e- has been reconstructed. The electromagnetic form factor is well in agreement with existing data. In addition, an inclusive e+e- spectrum from the C+C reaction at 2AGeV is presented and compared with a thermal model.
description: 11 pages, 3 figures, proceedings of the IVth International Conference on Quarks and Nuclear Physics, Madrid, June 5th-10th, submitted to Eur.Phys.J.A